CN102106176A - Signal transmission method and apparatus for user equipment in mobile communication system - Google Patents
Signal transmission method and apparatus for user equipment in mobile communication system Download PDFInfo
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- CN102106176A CN102106176A CN2009801288808A CN200980128880A CN102106176A CN 102106176 A CN102106176 A CN 102106176A CN 2009801288808 A CN2009801288808 A CN 2009801288808A CN 200980128880 A CN200980128880 A CN 200980128880A CN 102106176 A CN102106176 A CN 102106176A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
Abstract
A signal transmission method and apparatus of a user equipment for a mobile communication system is provided for improving data transmission reliability and efficiency by transmitting data based on precise discrimination of the uplink transmission resource assignment messages indicative of initial transmission and retransmission. A signal transmission method of a user equipment for a mobile communication system receives an uplink transmission resource assignment message from a base station determines whether a Hybrid Automatic Repeat reQuest (HARQ) buffer is empty, and when the HARQ buffer is empty, transmits to the base station a Media Access Control Protocol Data Unit (MAC PDU) generated with reference to information contained in the uplink transmission resource assignment message.
Description
Technical field
The present invention relates to mobile communication system, specifically, the method for transmitting signals and the device that relate to the subscriber equipment (UE) that is used for mobile communication system, it can improve data transmission credibility and efficient by sending data based on the accurate differentiation to the allocation of uplink transmission resources message of expression initial transmission and re-transmission.
Background technology
Universal Mobile Telecommunications System (UMTS) is a kind of in the third generation (3G) the mobile communication technology, and it is from global system for mobile communications (GSM) and GPRS (GPRS) system development and use Wideband Code Division Multiple Access (WCDMA) (WCDMA).
The standardized third generation partner program (3GPP) of being responsible for UMTS is being devoted to significantly to expand the performance of UMTS in Long Term Evolution (LTE) system.LTE a kind ofly provides 3GPP standard and expection up to the downlink speed of 100Mbps will drop into commercial the use in 2010.
In order to satisfy the demand of LTE system, to study in all fields, these aspects comprise the number that minimizes the node that comprises in the connection and are provided with wireless protocols as far as possible near wireless channel.
Fig. 1 is the schematic diagram that the LTE mobile communication system is shown.
As shown in Figure 1, the utilization of LTE mobile communication system only has the evolution Radio Access Network (E-RAN) 110 and 112 of two infrastructure node, and described two infrastructure node are: enode b (ENB or Node B) 120,122,124,126 and 128 and IAD (AG) 130 and 132.Subscriber equipment (UE) 101 is via E-RAN 110 and 112 access agreement (IP) networks.
ENB 120,122,124,126 and 128 corresponding to the conventional node B that wireless access service is provided to UE 101.120,122,124,126 and 128 of ENB is responsible for the function more more complicated than the function of conventional node B.In the next generation wireless communication system, be to comprise that all customer services such as the so real-time service of ip voice (VoIP) provide service by shared channel.For this reason, exist to the equipment of the state information that is used to collect UE with based on the needs of the scheduling of state information.Among the ENB 120,122,124,126 and 128 each is responsible for the scheduling of UE.In order to realize 100Mbps or faster speed, wireless communication system adopts the wireless access technology of OFDM (OFDM) on the 20MHz bandwidth.And, support adaptive modulation and coding (AMC) scheme so that determine modulation scheme and channel encoding rate according to the channel status of UE101.
Fig. 2 is the schematic diagram that the user-plane protocol stack framework of LTE mobile communication system is shown.As shown in Figure 2, UE has the protocol stack that comprises packet data polymerized agreement (PDPC) layer 205, Radio Link control (RLC) layer 210, media interviews controls (MAC) layer 215 and physics (PHY) layer 220.And ENB has the protocol stack that comprises PDPC layer 240, rlc layer 235, MAC layer 230 and PHY layer 225.
In the LTE mobile communication system, utilize mixed automatic retransmission request (HARQ) to be used for the reliable transmission of up link MAC PDU.In the mobile communication system of using HARQ, when not receiving MAC PDU, receiver sends the non-affirmation of HARQ (NACK) and retransmits MAC PDU to transmitter so that receive the transmitter of HARQ NACK.Receiver is carried out soft combination so that initial transmission and one or more re-transmission are made up.
In the LTE mobile communication system, by allocation of uplink transmission resources distribution of messages uplink resource.Fig. 3 is the schematic diagram that the message format of exemplary allocation of uplink transmission resources message is shown.
With reference to figure 3, allocation of uplink transmission resources message comprises Resource Block (RB) allocation field 305, and it carries the amount of relevant resource and the information of position.In the LTE mobile communication system, be the unit Resources allocation with the Resource Block of the preset frequency bandwidth that is defined as having 1 millisecond of length, and the resource of being distributed by 305 expressions of RB allocation field.
Allocation of uplink transmission resources message also comprises modulation and encoding scheme (MCS) field 310, and its expression transmission data are with the adaptive modulation and coding form that adopts.This field is 5 bits and can carries expression Quadrature Phase Shift Keying and 0.11 channel encoding rate 29 code-points to the combination of 64 quadrature amplitude modulation (QAM) and 0.95 channel encoding rate.All the other 3 code-points are used for representing redundancy versions (RV).Reference table 1 is described MCS field 310 in more detail.
Table 1
Table 1 stipulates in 3GPP 36.213V8.6.0 technical specification, is used for illustrating transport block size (TBS) index and according to the relation between the RV of the MCS index that is included in MCS field 310.Reference table 1, from 0 to 28 MCS rank are represented RV=0 and each TBS index, and from 29 to 31 MCS rank is represented RV=1,2 and 3 and do not have the TBS index respectively.
Allocation of uplink transmission resources message also comprises new data indicator (NDI) 315.NDI 315 is 1 bit informations, is used to represent that the transfer resource assignment messages belongs to initial transmission or re-transmission.
The uplink HARQ operation of the NDI that is undertaken by allocation of uplink transmission resources message is described in Fig. 4.
Fig. 4 is the schematic diagram that is illustrated in HARQ operation successful in traditional mobile communication system of the NDI that uses allocation of uplink transmission resources message.With reference to figure 4, UE puts receiving uplink transfer resource assignment messages 405 sometime, and uses uplink resource 415 and MCS rank by 405 expressions of allocation of uplink transmission resources message to send MAC PDU after time T 410 passes.For the purpose of simplifying the description, the MAC PDU that sends by the resource of utilizing allocation of uplink transmission resources message 405 to distribute will be called MAC PDU A.Till sending MAC PDU A fully, that is, receive confirm (ACK) at the HARQ of MAC PDU A or reach the maximum number of number of retransmissions before, UE serve as that repeated retransmission 420 and 425 are come in the interval with HARQ two-way time (RTT) 417.Finish MAC PDUA transmission at particular point in time, and UE receives new allocation of uplink transmission resources message 430 from ENB.The NDI of new allocation of uplink transmission resources message is set to the different value of value with the NDI of previous allocation of uplink transmission resources message 405.Change if detect the NDI value, UE just is considered as allocation of uplink transmission resources message new MAC PDU request message and begins sending new MAC PDU, for example MAC PDUB by uplink resource 435 so.Such as the aforementioned, UE serves as to repeat to send 440 at interval with HARQ RTT.
For managing transmission resource effectively, ENB can distribute different resources to be used for the re-transmission of current MACPDU.This technology is known as self adaptation and retransmits.Have the allocation of uplink transmission resources message of identical NDI by transmission, ENB can ask self adaptation to retransmit to UE.For example, if ENB wants to receive MACPDU B by new RB after sending allocation of uplink transmission resources message 430, ENB just sends the identical allocation of uplink transmission resources message 433 of NDI of the together previous allocation of uplink transmission resources message 430 of its NDI (=1) together with new resource allocation information so.If receive the identical allocation of uplink transmission resources message of NDI of its NDI and previous allocation of uplink transmission resources message, UE just determines to have asked self adaptation to retransmit so that use newly assigned transfer resource 445 and 450 send MAC PDU B so.
In order to determine that allocation of uplink transmission resources message belongs to initial transmission or re-transmission, can suppose that all allocation of uplink transmission resources message that UE receives all are successfully received.
Fig. 5 is the schematic diagram that HARQ operation failure in traditional mobile communication system of the NDI that uses allocation of uplink transmission resources message is shown.With reference to figure 5, UE is putting receiving uplink transfer resource assignment messages 505 sometime and is using uplink resource 515 and MCS rank by 505 expressions of allocation of uplink transmission resources message to send MAC PDU, and serves as the re-transmission 520 that repeats MAC PDU at interval with the HARQ RTT shown in Fig. 4.After receiving MAC PDU fully, ENB sends new allocation of uplink transmission resources message 525, and its NDI (=1) is different from the NDI (=0) of previous allocation of uplink transmission resources message 505.Under the situation that new allocation of uplink transmission resources message 525 is lost, UE may receive another allocation of uplink transmission resources message 530 under do not know to lose allocation of uplink transmission resources message 525 situation of---its NDI is set to 1---, it has and the previous identical NDI (=0) of NDI of allocation of uplink transmission resources message 505.Because at UE, the NDI of allocation of uplink transmission resources message 530 (=0) is that the NDI of first message after receiving previous allocation of uplink transmission resources message 505 and two message that receive continuously is mutually the same, is retransmission request message so the UE mistake is known allocation of uplink transmission resources message 530.
Summary of the invention
Technical problem
In order to overcome prior art problems at least, the invention provides a kind of method for transmitting signals and device that is used for subscriber equipment in mobile communication system, it can improve data transmission credibility and efficient by sending data based on the accurate differentiation to the allocation of uplink transmission resources message of expression initial transmission and re-transmission.
Have again, the invention provides a kind of method for transmitting signals and device that is used for UE in mobile communication system, it can improve the mixed automatic retransmission solicit operation of UE by distinguishing allocation of uplink transmission resources message that the expression initial transmission that sent by ENB and self adaptation retransmit.
Have again, the invention provides a kind of method for transmitting signals and device that is used for UE in mobile communication system, it can move the mixed automatic retransmission request mechanism by the accurate differentiation that utilizes the allocation of uplink transmission resources message that expression initial transmission and self adaptation by the ENB transmission are retransmitted and reduce the wasting of resources.
Technical scheme
According to embodiments of the invention, a kind of method for transmitting signals that is used for the subscriber equipment of mobile communication system comprises: from base station receiving uplink transfer resource assignment messages; Determine whether mixed automatic retransmission request harq buffer device is empty; And when the harq buffer device is sky, will send to the base station with reference to the media access control protocol data unit MAC PDU that the information that is included in the described allocation of uplink transmission resources message generates.
According to embodiments of the invention, a kind of subscriber equipment that is used for mobile communication system comprises: transmission/receiving element, and it passes on physical downlink control channel PDCCH and business by wireless channel; The PDCCH processing unit, it extracts allocation of uplink transmission resources message from the PDCCH that is received by described transmission/receiving element; The transfer resource control unit, it is based on mixed automatic retransmission request (HARQ) buffer state and new data indicator (NDI) and the redundancy versions (RV) that are included in the described allocation of uplink transmission resources message, determines whether described allocation of uplink transmission resources message represents that the self adaptation of the initial transmission of new media access control protocol data unit (MAC PDU), previous MACPDU retransmits, the self adaptation of new MAC PDU retransmits; The HARQ unit, it carries out the HARQ operation; And upper unit, it handles the last layer operation of Radio Link control (RLC) equipment, packet data polymerized agreement (PDPC) equipment and MAC multiplexer.
Beneficial effect
As mentioned above, method for transmitting signals and the device that is used for mobile communication system according to the present invention makes UE can distinguish the initial transmission of expression data and the allocation of uplink transmission resources message of re-transmission exactly, reduces thus by mistake and knows the caused wasting of resources of allocation of uplink transmission resources message.
Description of drawings
Above-mentioned and other purpose of the present invention, feature and benefit will be more obvious from the detailed description below in conjunction with accompanying drawing, in the accompanying drawing:
Fig. 1 is the schematic diagram that the LTE mobile communication system is shown;
Fig. 2 is the schematic diagram that the user-plane protocol stack framework of LTE mobile communication system is shown;
Fig. 3 is the schematic diagram that the message format of exemplary allocation of uplink transmission resources message is shown;
Fig. 4 is the schematic diagram that is illustrated in HARQ operation successful in traditional mobile communication system of the NDI that uses allocation of uplink transmission resources message;
Fig. 5 is the schematic diagram that is illustrated in HARQ operation failure in traditional mobile communication system of the NDI that uses allocation of uplink transmission resources message;
Fig. 6 is the schematic diagram that is illustrated in the situation of problem that may meet with in the mobile communication system and be solved by method for transmitting signals according to an embodiment of the invention;
Fig. 7 is the flow chart that illustrates according to an embodiment of the invention, is used for the method for transmitting signals of mobile communication system;
Fig. 8 is the schematic diagram that the sequence of the redundancy versions (RV) that is used for request data retransmission according to an embodiment of the invention, in mobile communication system is shown;
Fig. 9 is the schematic diagram that illustrates according to an embodiment of the invention, how to be provided for the RV of self adaptation re-transmission in mobile communication;
Figure 10 is the angle that illustrates with UE, according to an embodiment of the invention, be used for the flow chart of the method for transmitting signals of mobile communication system;
Figure 11 is the flow chart that method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown;
Figure 12 is the flow chart that method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown;
Figure 13 is the schematic diagram of bunchy transmission (bundled transmission) process that illustrates according to an embodiment of the invention, is used for the method for transmitting signals of mobile communication system;
Figure 14 is the schematic diagram that the bunchy transmission course of method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown;
Figure 15 is the flow chart that method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown; And
Figure 16 is the block diagram of configuration of signal transmitting apparatus that illustrates according to an embodiment of the invention, is used for the UE of mobile communication system.
Embodiment
To be described in detail with reference to the attached drawings one exemplary embodiment of the present invention.Running through accompanying drawing uses identical reference marker to refer to identical or similar part.For fear of fuzzy theme of the present invention, may omit the detailed description that is combined in this known function and structure.
Only use NDI to distinguish in traditional HARQ mechanism of the allocation of uplink transmission resources message of representing initial transmission and re-transmission at UE, UE possibly can't distinguish message.In some embodiments of the invention, UE consideration NDI, RV and harq buffer device state are distinguished the allocation of uplink transmission resources message of expression initial transmission and re-transmission, distinguish accuracy so that improve.
Typically, the allocation of uplink transmission resources message of the initial transmission of the new grouping of expression takes place after having finished previous transmitted in packets, also is like this even this allocation of uplink transmission resources message has the NDI identical with the NDI of previous allocation of uplink transmission resources message.Consider this feature, according to some embodiments of the present invention, the UE that receives the allocation of uplink transmission resources message of expression initial transmission in the HARQ process calculates the last available re-transmission time, if and the last available re-transmission time expire, even MAC PDU transmission has been failed and has also been refreshed (flush) harq buffer device so.And, if the harq buffer device does not have data when receiving allocation of uplink transmission resources message in the HARQ process, promptly, allocation of uplink transmission resources message represents it is first allocation of uplink transmission resources message after refreshing the harq buffer device, UE determines that this allocation of uplink transmission resources message represents the initial transmission of new MAC PDU so, and no matter the NDI value of this allocation of uplink transmission resources message why.
Fig. 6 is the schematic diagram that is illustrated in the situation of problem that may meet with in the mobile communication system and solve by method for transmitting signals according to an embodiment of the invention.
With reference to figure 6, UE receiving uplink transfer resource assignment messages 605, the initial transmission of the new grouping of its expression HARQ process X.In case receive the allocation of uplink transmission resources message 605 of the initial transmission of the new grouping of expression, UE lights from the time that receives this allocation of uplink transmission resources message with regard to wait and passes time T, and uses by the uplink transmission resource transmission MAC PDU 610 that represents at the allocation of uplink transmission resources message of this HARQ process X.If receive NACK 625 in response to MACPDU 610, UE just retransmits MAC PDU 615 so.With HARQ RTT is the interval, repeats the re-transmission 615 and 620 of MAC PDU in response to NACK 625 and 630.Can repeated retransmission, till reaching maximum retransmission.In Fig. 6, UE receives the HARQ ACK 635 in response to MAC PDU.When receiving HARQ ACK 635, UE stops the re-transmission of MAC PDU.Next, UE monitors maximum retransmission and the 645 harq buffer devices 640 that refresh at HARQ process X when maximum retransmit reaches.In Fig. 6, after UE has finished the transmission of previous MAC PDU620, send the allocation of uplink transmission resources message 650 of the initial transmission of the new MAC PDU of expression, but UE fails receiving uplink transfer resource assignment messages 650 at HARQ process X.In this case, because UE does not send MAC PDU, so ENB decodes with the interval repetitive noise of HARQ and determines that when the last available re-transmission time expires the MAC PDU transmission of UE ends in failure.After the transmission from previous allocation of uplink transmission resources message 650 passes a period of time, ENB sends another allocation of uplink transmission resources message 655 to UE of the initial transmission of the new MAC PDU of expression, and UE receiving uplink transfer resource assignment messages 655.In this case, the NDI of allocation of uplink transmission resources message 655 is set to 0, and the NDI of the allocation of uplink transmission resources message 605 that has received recently with UE is identical.If being used to distinguish allocation of uplink transmission resources message 655 with reference to NDI is expression initial transmission or re-transmission, UE will know the allocation of uplink transmission resources message of the allocation of uplink transmission resources message 655 of the initial transmission of representing new MAC PDU for the re-transmission of the previous MAC PDU of expression by mistake so.In an embodiment of the present invention, UE checks harq buffer device state, knows to avoid such mistake.If the harq buffer device is not empty, UE distinguishes allocation of uplink transmission resources message with reference to NDI so.Otherwise, if the harq buffer device is empty, so UE determine allocation of uplink transmission resources message represent new MAC PDU initial transmission and no matter NDI why.
Fig. 7 is the flow chart that illustrates according to an embodiment of the invention, is used for the method for transmitting signals of mobile communication system.
With reference to figure 7, UE receives the allocation of uplink transmission resources message at the HARQ process in step 705.In case receive allocation of uplink transmission resources message, UE just determines in step 710 whether the harq buffer device at the HARQ process is empty.If the harq buffer device is empty, UE determines that this allocation of uplink transmission resources message represents the initial transmission of new MAC PDU so, and process advances to step 715.Otherwise if the harq buffer device is not empty, process advances to step 730 so.In step 730, UE determines whether the NDI of allocation of uplink transmission resources message is dialled commentaries on classics (toggle), that is, allocation of uplink transmission resources message is the initial transmission of the new MACPDU of expression or the re-transmission of previous MAC PDU then.
If the harq buffer device is empty in step 710, this means that UE is asking to use the uplink transmission resource of being represented by this allocation of uplink transmission resources message to send new PDU.In step 715, UE checks that redundancy versions (RV) is to determine whether this RV is set to 0.Being set to 0 RV means this allocation of uplink transmission resources message and represents the initial transmission of new MAC PDU but not retransmit.If RV is set to 0, process advances to step 725 so.If RV is set to the value except 0, process advances to step 720 so.Before explaining further progress, will RV be described in more detail with reference to figure 8 and Fig. 9.
Fig. 8 is the schematic diagram that the order of the redundancy versions (RV) that is used for request data retransmission according to an embodiment of the invention, in mobile communication system is shown, and Fig. 9 is the schematic diagram that illustrates according to an embodiment of the invention, how to be provided for the RV of self adaptation re-transmission in mobile communication system.
With reference to figure 8 and Fig. 9, the RV field is used for representing the part of the initial data that will retransmit in the HARQ process.The allocation of uplink transmission resources message of representing the initial transmission of new MAC PDU comprises transfer resource assignment information and MCS class information.The number of the Resource Block that the UE of receiving uplink transfer resource assignment messages represents based on allocation of uplink transmission resources message and MCS rank are determined the size of the data that will send, and generate and have institute and determine big or small MAC PDU 805.MAC PDU is carried out chnnel coding to the MCS rank of representing according to allocation of uplink transmission resources message and channel coded data 810 is stored in the harq buffer device that is used for corresponding HARQ process.UE sends the part of the channel coded data of being represented by RV 810, and carries out re-transmission with the sequential order of RV value.
The order of RV is defined as RV0, RV2, RV3 and RV1, and UE is with this sequential loop ground repeated retransmission.RV0, RV1, RV2 and RV3 point to the various piece 815,820,825 and 830 that constitutes channel coded data 810.In practice, unlike the exemplary case shown in Fig. 8, the part of being pointed to by RV is not continuous.Usually, transmission begins then order according to RV2825, RV3830 and RV1820 from RV0815.Order of transmission be circulation so that a last part that has sent the channel coded data after, send data by the RV0815 sensing.In the situation that self adaptation retransmits, can in the allocation of uplink transmission resources message that the expression self adaptation retransmits, indicate RV.For example, if allocation of uplink transmission resources message 905 in the initial transmission that receives the new MAC PDU of expression sometime, UE is just from receiving after this allocation of uplink transmission resources message passed time T 910 so, and the uplink transmission resource of passing through to be distributed sends (MAC PDU's) part of being pointed to by RV0915.Suppose that MAC PDU is retransmitted continuously, then UE is the interval with HARQ RTT, sends the part of being pointed to by RV2920 and RV3925 in order by identical uplink transmission resource.At this moment wait, re-transmission with UE moves to another uplink transmission resource if desired, and ENB just sends the allocation of uplink transmission resources message 930 of its NDI and the initial transmission of the NDI MAC PDU identical, that expression is new of previous allocation of uplink transmission resources message so.At this moment wait, ENB can change the sequential order of RV by the value that replacement is used for the RV of the allocation of uplink transmission resources message that self adaptation retransmits.For example, if will being used for the RV of the allocation of uplink transmission resources message of self adaptation re-transmission, ENB resets to 2, though be the time that sends the data of pointing to by RV1 so, UE also sends the data of being pointed to by RV2935, and the order after keeping changing up to finish transmission or this order again by the ENB change till.That is to say that order is changed to making RV3940, RV1945, RV0950 follow after RV2935 and is sent in proper order.As mentioned above, be set to that 0 RV represents that this allocation of uplink transmission resources message is represented the initial transmission of new information and non-self-adapting retransmits.Therefore, UE generates new MAC PDU with reference to the information of being represented by allocation of uplink transmission resources message and after chnnel coding MAC PDU is stored in the harq buffer device, and in step 725, send data division by the RV sensing of allocation of uplink transmission resources message.
Strictly speaking, can be at the allocation of uplink transmission resources message of expression self adaptation re-transmission, RV is set to 0.For example, if the allocation of uplink transmission resources message that the expression self adaptation retransmits is sent to the UE that prepares the 5th transmission, turns back to Initial R V so in proper order and make more efficient in proper order.Yet, use RV0 to be used for the self adaptation re-transmission if permit ENB, may have such possibility so: promptly UE can know the allocation of uplink transmission resources message mistake of expression self adaptation re-transmission the allocation of uplink transmission resources message for the expression initial transmission, and perhaps vice versa.Therefore, in an embodiment of the present invention, disapprove ENB and use RV0 to be used for the self adaptation re-transmission.In other words, the RV that ENB must allocation of uplink transmission resources message is set to nonzero value, and this allocation of uplink transmission resources message is being to be sent and the expression self adaptation retransmits by the time that the data that RV0 points to are reserved.By this strategy, can sacrifice efficiency of transmission hardly and guarantee protocol reliability.
Turn back to Fig. 7, if RV is not set to 0 in step 715, UE determines that allocation of uplink transmission resources message represents that the self adaptation of new MAC PDU retransmits so, and this means the allocation of uplink transmission resources message of having lost the initial transmission of representing new MAC PDU before receiving the allocation of uplink transmission resources message that the expression self adaptation retransmits.As mentioned above, HARQ retransmits the maximum number that is restricted to the HARQ transmission.Therefore, when having lost the allocation of uplink transmission resources message of expression initial transmission, UE has not known to send how many times and has represented the allocation of uplink transmission resources message that self adaptation retransmits.If mistake has been known and last may have been retransmitted time point, UE may send data by disabled uplink transmission resource so, and this resource is not that UE reserves at that time, thereby causes interference.Therefore, if the RV of allocation of uplink transmission resources message is set to nonzero value and the harq buffer device is empty, UE just ignores this allocation of uplink transmission resources message and does not send data in step 720 so.
If the harq buffer device is not empty in step 710, UE just determines to compare with the allocation of uplink transmission resources message that the last time had before received in step S730 so, and whether the NDI of current allocation of uplink transmission resources message is dialled is changeed.If being dialled, changes NDI, the NDI that is current allocation of uplink transmission resources message is inequality with the NDI value of the allocation of uplink transmission resources message that had before received at the last time of HARQ process, and just definite this allocation of uplink transmission resources message of UE is represented the initial transmission of new MAC PDU and refresh the harq buffer device in step 735 so.After having refreshed the harq buffer device, process advances to step 715.Otherwise, if being dialled, do not change NDI, UE just determines that this allocation of uplink transmission resources message represents that the self adaptation of previous MAC PDU retransmits so, and uses the uplink transmission resource of being represented by this allocation of uplink transmission resources message to send to be stored in the part of the coded data of being pointed to by RV in the harq buffer device in step 740.
Figure 10 is the angle that illustrates with UE, according to an embodiment of the invention, be used for the flow chart of the method for transmitting signals of mobile communication system.The HARQ process of describing among Figure 10 is similar to the HARQ process of Fig. 7 substantially, but simplifies more by checking RV before checking at the harq buffer device.
With reference to Figure 10, UE receives the allocation of uplink transmission resources message at HARQ process X in step 1005.In case receive allocation of uplink transmission resources message, UE just determines in step 1010 whether the RV of allocation of uplink transmission resources message is 0.If RV is set to 0, the just definite allocation of uplink transmission resources message of UE represents that the initial transmission of new MAC PDU is so that process advances to step 1015 so.In step 1015, UE generates new MAC PDU and MAC PDU is carried out chnnel coding based on the information that is included in the allocation of uplink transmission resources message, the channel coded data is stored in the harq buffer device, send the part of the channel-encoded data of pointing to by the RV of allocation of uplink transmission resources message then, i.e. RV0.
Otherwise if RV is not set to 0, UE determines whether the harq buffer device at HARQ process X is empty, that is, whether this allocation of uplink transmission resources message represents the initial transmission of new MAC PDU in step 1020 so.If the harq buffer device is empty, UE determines that this allocation of uplink transmission resources message represents that the self adaptation of new MAC PDU retransmits so.If RV be not set to 0 and the harq buffer device be empty, this means the allocation of uplink transmission resources message of having lost the initial transmission of representing new PDU before receiving current allocation of uplink transmission resources message so, therefore UE ignores the current allocation of uplink transmission resources message that receives and does not send data in step 1025.If it is not empty being used for the harq buffer device of corresponding HARQ process in step 1020, UE just determines to compare with the allocation of uplink transmission resources message that the last time had before received in step 1030 so, and whether the NDI of current allocation of uplink transmission resources message is dialled is changeed.
If the NDI value of the allocation of uplink transmission resources message that had before received with the last time is compared, the NDI of current allocation of uplink transmission resources message is dialled to be changeed, promptly, if the NDI of current allocation of uplink transmission resources message is different from the NDI of the last allocation of uplink transmission resources message that had before received, just definite this allocation of uplink transmission resources message of UE represents that the self adaptation of new MAC PDU retransmits and process advances to step 1025 so.If NDI does not dial commentaries on classics in step 1030, just definite this allocation of uplink transmission resources message of UE represents that the self adaptation of previous MAC PDU retransmits so, and process advances to step 1035.In step 1035, UE sends the part of the channel coded data that is stored in the harq buffer device and is pointed to by RV by the uplink transmission resource of being represented by this allocation of uplink transmission resources message.
In brief, UE distinguishes following three types allocation of uplink transmission resources message and according to the type operations of allocation of uplink transmission resources message.
First type allocation of uplink transmission resources message is the allocation of uplink transmission resources message of the initial transmission of the new MAC PDU of expression.When receiving its RV when being set to 0 allocation of uplink transmission resources message for empty HARQ process at the harq buffer device, allocation of uplink transmission resources message is confirmed as representing the allocation of uplink transmission resources message of the initial transmission of new MAC PDU, and UE sends uplink data according to normal initial transmission process thus.
Second type allocation of uplink transmission resources message is the allocation of uplink transmission resources message that expression is stored in the self adaptation re-transmission of the MAC PDU in the harq buffer device.When not being set to nonzero value and NDI when being dialled the allocation of uplink transmission resources message of changeing for empty HARQ process receives its RV at the harq buffer device, this allocation of uplink transmission resources message is confirmed as representing to be stored in the allocation of uplink transmission resources message that the self adaptation of the MAC PDU in the harq buffer device retransmits, and UE retransmits the MACPDU that is stored in the harq buffer device according to normal retransmission process thus.
The allocation of uplink transmission resources message of the third type is the allocation of uplink transmission resources message that the self adaptation of the new MAC PDU of expression retransmits.When being set to the allocation of uplink transmission resources message of nonzero value or not being set to nonzero value and NDI when being dialled the allocation of uplink transmission resources message of changeing for empty HARQ process receives its RV for empty HARQ process receives its RV at the harq buffer device at the harq buffer device, this allocation of uplink transmission resources message is confirmed as representing the allocation of uplink transmission resources message that the self adaptation of new MAC PDU retransmits, and UE ignores this allocation of uplink transmission resources message thus and do not send data.
In an embodiment of the present invention, a kind of allocation of uplink transmission resources message area separating method and device that uses NDI, RV and harq buffer device state in the bunchy transmission proposed.
Figure 11 is the flow chart that method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown.In this embodiment, UE checks that at first NDI is to simplify the process of distinguishing allocation of uplink transmission resources message.
With reference to Figure 11, in step 1105, UE receives the allocation of uplink transmission resources message at HARQ process X.In case receive allocation of uplink transmission resources message, the NDI whether UE just determines this allocation of uplink transmission resources message in step 1110 NDI had before received with the last time at HARQ process X is identical or from its increase.The last NDI that had before received can be the NDI of the allocation of uplink transmission resources message that before received at corresponding HARQ process the last time.
If the NDI of the allocation of uplink transmission resources message that had before received with the last time compares, the NDI of current allocation of uplink transmission resources message is increased, promptly, if the value of NDI has been changed, just definite this allocation of uplink transmission resources message of UE represents that the self adaptation of new MAC PDU retransmits so, so that form new MAC PDU based on the information that is included in this allocation of uplink transmission resources message, MAC PDU is carried out chnnel coding, with the MAC PDU of channel coded data form storage channel coding, and in step 1115, send the part of the channel coded data that the RV by this allocation of uplink transmission resources message points to.In step 1115, UE forms new MAC PDU and carries out chnnel coding with reference to the information that is included in this allocation of uplink transmission resources message, new MAC PDU is stored in the harq buffer device, and transmission is by the part of the MAC PDU of the channel coding of the RV sensing of this allocation of uplink transmission resources message.
If the NDI of current allocation of uplink transmission resources message is identical with the NDI of the last allocation of uplink transmission resources message that had before received, in step 1120, UE just determines whether corresponding harq buffer device is empty so.If the harq buffer device is empty, just definite this allocation of uplink transmission resources message of UE is represented the initial transmission of new MAC PDU so, so that process advances to step 1115.Otherwise, if the harq buffer device is not empty in step 1120, just definite this allocation of uplink transmission resources message of UE represents that the self adaptation of previous MAC PDU retransmits so, so that use the uplink transmission resource of being represented by allocation of uplink transmission resources message to send a part that is stored in the coded data in the harq buffer device, this part is pointed to by the RV of allocation of uplink transmission resources message.
Figure 12 is the flow chart that method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown.In this embodiment, UE comes simplified message to distinguish process by the NDI that at first checks allocation of uplink transmission resources message with reference to RV but not harq buffer device state is distinguished the allocation of uplink transmission resources message of expression initial transmission and re-transmission simultaneously.
With reference to Figure 12, in step 1205, UE receives the allocation of uplink transmission resources message at HARQ process X.In case receive allocation of uplink transmission resources message, the NDI whether UE just determines allocation of uplink transmission resources message in step 1210 NDI had before received with the last time at HARQ process X is still from its increase.
If the NDI of current allocation of uplink transmission resources message increases from the NDI that the last time had before received, if promptly the value of NDI is changed, so in step 1215, just definite this allocation of uplink transmission resources message of UE represents that the initial transmission of new MAC PDU is so that form new MAC PDU based on the information that is included in this uplink resource allocation message, MAC PDU is carried out chnnel coding, form with the channel coded data is stored the MAC PDU that channel is encoded, and transmission is by the part of the channel coded data of the RV sensing of this allocation of uplink transmission resources message.
If the NDI of current allocation of uplink transmission resources message is identical with the NDI of the last allocation of uplink transmission resources message that had before received, in step 1220, UE just determines whether the RV of this allocation of uplink transmission resources message is set to 0 so.If the RV of this allocation of uplink transmission resources message is set to 0, just definite this allocation of uplink transmission resources message of UE is represented the initial transmission of new MAC PDU so, so that process advances to step 1215.Otherwise, if the RV of this allocation of uplink transmission resources message is set to nonzero value in step 1220, just definite this allocation of uplink transmission resources message of UE represents that the self adaptation of previous MAC PDU retransmits so, so that use the uplink transmission resource of being represented by allocation of uplink transmission resources message to send a part that is stored in the coded data in the harq buffer device, this part is pointed to by the RV of this allocation of uplink transmission resources message.
The bunchy transmission is that such feature: UE uses uplink transmission resource data retransmission pre-determined number according to an embodiment of the invention, to solve the caused problem of through-put power shortage by the cell boarder place.In the bunchy transmission, the same uplink transfer resource of UE by being distributed by ENB sequentially sends the data of being pointed to by RV0, RV2, RV3 and RV1.ENB carries out soft combination to the data that receive by 4 ul transmissions, and the data after the combination are carried out error checking, and sends HARQ ACK or HARQ NACK.
Figure 13 is the schematic diagram of bunchy transmission course that illustrates according to an embodiment of the invention, is used for the method for transmitting signals of mobile communication system.
With reference to Figure 13, represent that the allocation of uplink transmission resources message 1305 of the initial transmission of new MAC PDU is sent to the UE that is configured to the operation of bunchy transmission mode.When receiving allocation of uplink transmission resources message 1305, UE sends the data of being pointed to by RV0, the RV2, RV3 and the RV1 that are included in the allocation of uplink transmission resources message 1,305 1315 from receiving after allocation of uplink transmission resources message 1305 passed time T at 4 Transmission Time Intervals (TTI).If receive HARQ NACK after sending data, UE just retransmits the data of being pointed to by RV0, RV2, RV3 and RV4 1325 at interval with the HARQ RTT 1320 at bunchy transmission definition so.
In the bunchy transmission, identical RV is used for initial transmission and re-transmission.That is to say that the RV of the allocation of uplink transmission resources message of the RV of the allocation of uplink transmission resources message that the expression self adaptation retransmits and expression initial transmission is mutually the same.For example, when sending the allocation of uplink transmission resources message 1330 of expression self adaptation re-transmission, the RV of ENB allocation of uplink transmission resources message 1330 is set to the RV value of the previous allocation of uplink transmission resources message 1305 that sends.Be used for the situation of initial transmission and re-transmission at identical RV, UE should distinguish the allocation of uplink transmission resources message of expression initial transmission and re-transmission with reference to NDI and harq buffer device state.If such as the aforementioned, the allocation of uplink transmission resources information drop-out of expression initial transmission so just can't only be distinguished the allocation of uplink transmission resources message of representing initial transmission and re-transmission by NDI and harq buffer device state.Suppose the expression initial transmission allocation of uplink transmission resources message 1305 lose, make UE under the situation of not knowing allocation of uplink transmission resources message 1305, receive the allocation of uplink transmission resources message 1330 that expression retransmits, compare with previous allocation of uplink transmission resources message 1305 so, NDI is dialled in allocation of uplink transmission resources message 1330 probably to be changeed.Therefore, UE will represent that probably the allocation of uplink transmission resources message mistake knowledge that self adaptation retransmits is the allocation of uplink transmission resources message of expression initial transmission.
In order to address this problem, method for transmitting signals RV is set to represent number of retransmissions but not points to corresponding data according to an embodiment of the invention.
Figure 14 is the schematic diagram that the bunchy transmission course of method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown.
With reference to Figure 14, when first to the 3rd allocation of uplink transmission resources message 1420,1430 and 1440 of the allocation of uplink transmission resources message 1405 of representing initial transmission and expression re-transmission was pressed the sequential order transmission, ENB was set to 0,1,2 and 3 respectively with the RV of allocation of uplink transmission resources message 1405,1420,1430 and 1440.That is to say that the value of RV is along with the transmission number of times of allocation of uplink transmission resources message increases and increases progressively from 0 with 1.
If be not set to nonzero value for the RV of the allocation of uplink transmission resources message of empty HARQ process at its buffer, promptly, if receive the allocation of uplink transmission resources message that the expression self adaptation retransmits under the situation of the allocation of uplink transmission resources message that does not receive the expression initial transmission, UE just ignores the allocation of uplink transmission resources message that the expression self adaptation retransmits so.
Figure 15 is the flow chart that method for transmitting signals according to another embodiment of the present invention, that be used for mobile communication system is shown.
With reference to Figure 15, UE receives the allocation of uplink transmission resources message at HARQ process X in step 1505.In case receive allocation of uplink transmission resources message, UE just determines in step 1510 whether the RV of allocation of uplink transmission resources message is set to 0.If the RV of this allocation of uplink transmission resources message is set to 0, so in step 1513, UE determines that this allocation of uplink transmission resources message represents the initial transmission of new MAC PDU and determine whether this allocation of uplink transmission resources message represents the bunchy transmission.Whether allocation of uplink transmission resources message represents that the control signal that bunchy transmits by the upper strata disposes.If the allocation of uplink transmission resources message table is shown as the bundle transmission, process advances to step 1517 so.Otherwise if allocation of uplink transmission resources message is not represented the bunchy transmission, process advances to step 1515 so.In step 1515, UE generates new MAC PDU based on the information of extracting from this allocation of uplink transmission resources message, and this MACPDU is carried out chnnel coding, the channel coded data is stored in the harq buffer device, and transmission is by the data of RV (=0) sensing of allocation of uplink transmission resources message.In step 1517, UE generates new MAC PDU and MAC PDU is carried out chnnel coding based on the information of extracting from allocation of uplink transmission resources message, the channel coded data is stored in the harq buffer device, and sends the data of pointing to by RV0, RV2, RV3 and RV1 with sequential order.
If the RV of allocation of uplink transmission resources message is set to nonzero value, in step 1520, UE determines whether the harq buffer device at HARQ process X is empty so.If the harq buffer device is empty, UE determines that this allocation of uplink transmission resources message represents that the self adaptation of new MACPDU retransmits so.Here, Kong harq buffer device means the allocation of uplink transmission resources message of having lost the initial transmission of representing new MAC PDU after refreshing the harq buffer device.As previously mentioned, HARQ retransmits the maximum number that is restricted to the HARQ transmission.Therefore, when having lost the allocation of uplink transmission resources message of expression initial transmission, UE has not known to send how many times and has represented the allocation of uplink transmission resources message that self adaptation retransmits.If mistake has been known and last may have been retransmitted time point, UE may send data by disabled uplink transmission resource so, and this resource is not that UE reserves at that time, thereby causes interference.Therefore, if the RV of allocation of uplink transmission resources message is set to nonzero value and the harq buffer device is empty, UE just ignores this allocation of uplink transmission resources message and does not send data in step 1525 so.If in step 1520, the harq buffer device is not empty, and in step 1530, UE just determines to compare with the allocation of uplink transmission resources message that the last time had before received so, and whether the NDI of current allocation of uplink transmission resources message is dialled is changeed.
If being dialled, changes the NDI of current allocation of uplink transmission resources message, promptly, the NDI of current allocation of uplink transmission resources message is inequality with the NDI value of the allocation of uplink transmission resources message that had before received at the last time of HARQ process, just definite this allocation of uplink transmission resources message of UE is represented the re-transmission of new MAC PDU so, and process advances to step 1525.Otherwise, if being dialled, changes NDI, UE definite this allocation of uplink transmission resources message in step 1533 represents that the self adaptation of previous MAC PDU retransmits so, and determines whether this allocation of uplink transmission resources message represents the bunchy transmission.If this allocation of uplink transmission resources message is not represented the bunchy transmission, so in step 1535, UE just uses the uplink transmission resource of being represented by this allocation of uplink transmission resources message, sends the part with the RV of this allocation of uplink transmission resources message corresponding (coded data of being pointed to by RV0, RV2, RV3 and RV1 in the harq buffer device).Otherwise, if the allocation of uplink transmission resources message table is shown as the bundle transmission, UE just ignores the RV of this allocation of uplink transmission resources message so, and the order with RV0, RV2, RV3 and RV1 sends the data (MAC PDU) that are stored in the harq buffer device in step 1537.
In brief, UE distinguishes following three types allocation of uplink transmission resources message and according to the type operations of allocation of uplink transmission resources message.
First type allocation of uplink transmission resources message is the allocation of uplink transmission resources message of the initial transmission of the new MAC PDU of expression.When receiving its RV when being set to zero allocation of uplink transmission resources message for empty HARQ process at the harq buffer device, allocation of uplink transmission resources message is confirmed as representing the allocation of uplink transmission resources message of the initial transmission of new MAC PDU, and UE sends uplink data according to normal initial transmission process thus.
Second type allocation of uplink transmission resources message is the allocation of uplink transmission resources message that expression is stored in the self adaptation re-transmission of the MAC PDU in the harq buffer device.When not receiving for empty HARQ process that its RV is set to nonzero value at the harq buffer device and compare its NDI when being dialled the allocation of uplink transmission resources message of changeing with previous allocation of uplink transmission resources message, this allocation of uplink transmission resources message is confirmed as representing to be stored in the allocation of uplink transmission resources message that the self adaptation of the MAC PDU in the harq buffer device retransmits, and UE retransmits the MAC PDU that is stored in the harq buffer device according to normal retransmission process thus.Be configured to ignore the RV of allocation of uplink transmission resources message, and send the data that are stored in the harq buffer device, for example with the order of RV0, RV2, RV3 and RV1 with sequential order with the UE of bunchy transmission mode operation.
The allocation of uplink transmission resources message of the third type is the allocation of uplink transmission resources message that the self adaptation of the new MAC PDU of expression retransmits.When being set to the allocation of uplink transmission resources message of nonzero value or not being set to nonzero value and NDI when being dialled the allocation of uplink transmission resources message of changeing for empty HARQ process receives its RV for empty HARQ process receives its RV at the harq buffer device at the harq buffer device, this allocation of uplink transmission resources message is confirmed as representing the allocation of uplink transmission resources message that the self adaptation of new MAC PDU retransmits, and UE ignores this allocation of uplink transmission resources message thus and do not send data.
Figure 16 is the block diagram of structure of signal transmitting apparatus that illustrates according to an embodiment of the invention, is used for the UE of mobile communication system.
With reference to Figure 16, signal transmitting apparatus comprises upper unit 1605, HARQ unit 1610, transfer resource control unit 1620, transmission/receiving element 1625 and PDCCH processing unit 1630.
Transmission/receiving element 1625 is responsible for receiving physical downlink control channel (PDCCH) and passing on other business by wireless channel.Signal that 1625 decodings of transmission/receiving element receive on PDCCH and output decoder signal are to PDCCH processing unit 1630.
1630 pairs of decoded signals by 1625 outputs of transmission/receiving element of PDCCH processing unit are carried out CRC check, and output is passed through the allocation of uplink transmission resources message of CRC check to transfer resource control unit 1620.Transfer resource control unit 1620 extracts NDI and RV from allocation of uplink transmission resources message, and with reference to NDI, RV and harq buffer device state are distinguished the initial transmission of the new MAC PDU of expression, self adaptation that expression is stored in the MAC PDU in the harq buffer device retransmits and the self adaptation of new MAC PDU retransmits allocation of uplink transmission resources message.If allocation of uplink transmission resources message is represented the initial transmission of new MAC PDU, transfer resource control unit 1620 is controlled the size that upper unit 1605 is determined the MAC PDU that will send with reference to the quantity of the transmission block that is distributed and MCS rank so, generation have determine the MAC PDU of size, and this MAC PDU is delivered to the HARQ process.If allocation of uplink transmission resources message is represented the self adaptation of previous MAC PDU and retransmits that transfer resource control unit 1620 is just controlled the self adaptation re-transmission that previous MAC PDU is carried out in HARQ unit 1610 so.If allocation of uplink transmission resources message is represented the self adaptation of new MAC PDU and retransmits that transfer resource control unit 1620 is just ignored this allocation of uplink transmission resources message and do not sent data so.
Upper unit 1605 is represented the multiplexer of PDCP layer equipment and MAC layer.HARQ unit 1610 comprises a plurality of HARQ processes and operates at each the execution HARQ in the HARQ process.
Industrial applicibility
Although above describing embodiments of the invention in detail, but should be expressly understood that many variations of the basic inventive concept of instructing that can find out for those skilled in the art and/or revise in the spirit and scope of the present invention that will still fall into such as the claims definition here.
Claims (12)
1. method for transmitting signals that is used for the subscriber equipment of mobile communication system comprises step:
Receive the allocation of uplink transmission resources message comprise NDI and MCS index, TBS index, redundancy versions from the base station, whether described NDI represents this allocation of uplink transmission resources message at initial transmission, and modulation order represented in described MCS index;
Determine whether mixed automatic retransmission request harq buffer device is empty; And
When the harq buffer device is sky, send new media access control protocol data unit MAC PDU to the base station based on this allocation of uplink transmission resources message.
2. method for transmitting signals as claimed in claim 1 also comprises step: whether the value of checking redundancy versions RV is set to 0, and when the value of RV is set to 0, sends new MAC PDU.
3. method for transmitting signals as claimed in claim 1, also comprise step: after having determined that the harq buffer device is whether empty, check size with reference to being included in MCS index in the described allocation of uplink transmission resources message, and in the time can discerning transmission block big or small, send described MAC PDU by the transmission block of base station assigns.
4. 2 method for transmitting signals as claimed in claim also comprises step: when RV is set to nonzero value, ignore described allocation of uplink transmission resources message.
5. method for transmitting signals as claimed in claim 1 also comprises step:
When the harq buffer device is not sky, determine whether the new data indicator NDI of described allocation of uplink transmission resources message is dialled commentaries on classics; And
When described NDI dial to be changeed, use the transfer resource represented by described allocation of uplink transmission resources message and retransmit described MAC PDU with reference to the redundancy versions of described allocation of uplink transmission resources message.
6. method for transmitting signals as claimed in claim 5 also comprises step:
When described NDI is dialled commentaries on classics, refresh described harq buffer device; And
Whether the redundancy versions RV that determines described allocation of uplink transmission resources message is set to 0.
7. method for transmitting signals as claimed in claim 6 also comprises step:
When described RV is set to 0, use the described transfer resource represented by described allocation of uplink transmission resources message and modulation and encoding scheme MCS rank to send new MAC PDU to the base station; And
When described RV is set to nonzero value, ignore described allocation of uplink transmission resources message.
8. subscriber equipment that is used for mobile communication system comprises:
Transmission/receiving element, it passes on physical downlink control channel PDCCH and business by wireless channel;
The PDCCH processing unit, it extracts allocation of uplink transmission resources message from the PDCCH that is received by described transmission/receiving element;
The transfer resource control unit, it determines that based on the combination in any that is included in mixed automatic retransmission request harq buffer device state in the described allocation of uplink transmission resources message or new data indicator NDI or redundancy versions RV or buffer state, NDI, RV MACPDU to be sent is new MAC PDU or previous MAC PDU;
The HARQ unit, it carries out the HARQ operation; And
Upper unit, it handles the last layer operation of Radio Link control RLC equipment, packet data polymerized agreement PDPC equipment and MAC multiplexer.
9. subscriber equipment as claimed in claim 8, wherein, described transfer resource control unit determines that when described RV is set to 0 described allocation of uplink transmission resources message represents the initial transmission of new MACPDU, based on the size that is included in the MAC PDU that the decision of modulation in the described allocation of uplink transmission resources message and encoding scheme MCS rank will send, control described upper unit and generate MAC PDU, and described MAC PDU is delivered to described HARQ unit.
10. subscriber equipment as claimed in claim 8, wherein, described transfer resource control unit when the harq buffer device be empty and RV determines that described allocation of uplink transmission resources message represents that the self adaptation of new MAC PDU retransmits when being set to nonzero value, and ignore this allocation of uplink transmission resources message.
11. subscriber equipment as claimed in claim 8, wherein, described transfer resource control unit determines when the harq buffer device is not sky whether described NDI is dialled commentaries on classics, and determine that when described NDI dial to be changeed described allocation of uplink transmission resources message represents that the self adaptation of previous MAC PDU retransmits, and use the transfer resource and the RV that represent by described allocation of uplink transmission resources message to retransmit previous MAC PDU.
12. subscriber equipment as claimed in claim 11, wherein, described transfer resource control unit is refreshed described harq buffer device when NDI dials when changeing, when RV is set to 0, use the transfer resource represented by described allocation of uplink transmission resources message and modulation and encoding scheme MCS rank to send new MAC PDU, and when described RV is set to nonzero value, ignore described allocation of uplink transmission resources message to the base station.
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| PCT/KR2009/004100 WO2010016669A2 (en) | 2008-08-04 | 2009-07-23 | Signal transmission method and apparatus for user equipment in mobile communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518398A (en) * | 2013-03-21 | 2014-01-15 | 华为终端有限公司 | Data transmission method, base station, and user device |
| CN110098853A (en) * | 2012-11-02 | 2019-08-06 | 三星电子株式会社 | The configuration of rate-matched and interferometry resource for cooperative multipoint transmission |
| CN114244480A (en) * | 2016-05-13 | 2022-03-25 | 松下电器（美国）知识产权公司 | User equipment, base station and method of operating a transmission protocol |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102102666B1 (en) * | 2013-08-09 | 2020-04-22 | 삼성전자 주식회사 | Method and apparatus for transmitting and receiving data using multiple carrier in mobile communication system |
| MX2018003913A (en) * | 2016-03-31 | 2018-05-23 | Sony Corp | Terminal device, base station device and communication method. |
| KR102576714B1 (en) | 2017-12-04 | 2023-09-11 | 삼성전자주식회사 | Method and apparatus for uplink data transmission in wireless communication system |
| WO2021062846A1 (en) * | 2019-09-30 | 2021-04-08 | 华为技术有限公司 | Communication method and apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645786A (en) * | 2003-11-14 | 2005-07-27 | 三星电子株式会社 | Method and apparatus for transmitting/receiving a control signal on a high speed shared control channel |
| CN101009537A (en) * | 2006-01-26 | 2007-08-01 | 华为技术有限公司 | A data retransfer method and system |
| CN101039452A (en) * | 2006-03-15 | 2007-09-19 | 华为技术有限公司 | Method for transmitting scheduling information of enhanced dedication channel and system thereof |
| CN101060387A (en) * | 2006-04-17 | 2007-10-24 | 华为技术有限公司 | HARQ-based data transmission method |
| WO2008041824A2 (en) * | 2006-10-02 | 2008-04-10 | Lg Electronics Inc. | Methods for retransmitting data in the multi-carrier system |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6021124A (en) * | 1997-08-19 | 2000-02-01 | Telefonaktiebolaget Lm Ericsson | Multi-channel automatic retransmission query (ARQ) method |
| US7292854B2 (en) * | 2002-02-15 | 2007-11-06 | Lucent Technologies Inc. | Express signaling in a wireless communication system |
| EP2267931A3 (en) * | 2003-04-10 | 2011-03-02 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device of reordering protocol data units |
| EP1545040B1 (en) * | 2003-12-19 | 2009-04-22 | Panasonic Corporation | HARQ protocol with synchronous retransmissions |
| US7584397B2 (en) * | 2004-06-10 | 2009-09-01 | Interdigital Technology Corporation | Method and apparatus for dynamically adjusting data transmission parameters and controlling H-ARQ processes |
| DE602004018325D1 (en) * | 2004-11-03 | 2009-01-22 | Panasonic Corp | HARQ protocol optimization for packet data transmission |
| KR100943590B1 (en) * | 2006-04-14 | 2010-02-23 | 삼성전자주식회사 | Method and apparatus for transmitting and receiving status report in a mobile communication system |
| JP5035969B2 (en) * | 2006-04-27 | 2012-09-26 | イノヴァティヴ ソニック リミテッド | Method and apparatus for processing packet data in a wireless communication system |
| TW200807946A (en) * | 2006-05-01 | 2008-02-01 | Ntt Docomo Inc | Mobile station, base station, and communication control method |
| CN101155013B (en) * | 2006-09-30 | 2012-02-01 | 上海无线通信研究中心 | HARQ and ARQ interactive cooperation method |
| US8214711B2 (en) * | 2006-12-28 | 2012-07-03 | Telefonaktiebolaget L M Ericsson (Publ) | Next data indicator handling |
| WO2008085992A2 (en) * | 2007-01-08 | 2008-07-17 | Interdigital Technology Corporation | Method and apparatus for multicasting with feedback information |
-
2008
- 2008-09-04 KR KR1020080087276A patent/KR101515042B1/en active IP Right Grant
-
2009
- 2009-07-23 CN CN201310727289.2A patent/CN103716141B/en active Active
- 2009-07-23 CN CN200980128880.8A patent/CN102106176B/en active Active
- 2009-07-23 JP JP2011521995A patent/JP5977946B2/en active Active
-
2015
- 2015-06-09 JP JP2015117003A patent/JP2015188255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645786A (en) * | 2003-11-14 | 2005-07-27 | 三星电子株式会社 | Method and apparatus for transmitting/receiving a control signal on a high speed shared control channel |
| CN101009537A (en) * | 2006-01-26 | 2007-08-01 | 华为技术有限公司 | A data retransfer method and system |
| CN101039452A (en) * | 2006-03-15 | 2007-09-19 | 华为技术有限公司 | Method for transmitting scheduling information of enhanced dedication channel and system thereof |
| CN101060387A (en) * | 2006-04-17 | 2007-10-24 | 华为技术有限公司 | HARQ-based data transmission method |
| WO2008041824A2 (en) * | 2006-10-02 | 2008-04-10 | Lg Electronics Inc. | Methods for retransmitting data in the multi-carrier system |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP: "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) Medium Access Control (MAC) protocol specification (Release 8)", 《3GPP TS 36.321 V8.2.0》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098853A (en) * | 2012-11-02 | 2019-08-06 | 三星电子株式会社 | The configuration of rate-matched and interferometry resource for cooperative multipoint transmission |
| CN110098853B (en) * | 2012-11-02 | 2022-07-29 | 三星电子株式会社 | Configuration of rate matching and interference measurement resources for coordinated multipoint transmission |
| CN103518398A (en) * | 2013-03-21 | 2014-01-15 | 华为终端有限公司 | Data transmission method, base station, and user device |
| WO2014146277A1 (en) * | 2013-03-21 | 2014-09-25 | 华为终端有限公司 | Data transmission method, base station, and user equipment |
| US9356751B2 (en) | 2013-03-21 | 2016-05-31 | Huawei Device Co., Ltd. | Data transmission method, base station, and user equipment |
| CN103518398B (en) * | 2013-03-21 | 2017-07-07 | 华为终端有限公司 | Data transmission method, base station and user equipment |
| CN114244480A (en) * | 2016-05-13 | 2022-03-25 | 松下电器（美国）知识产权公司 | User equipment, base station and method of operating a transmission protocol |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100015266A (en) | 2010-02-12 |
| JP2015188255A (en) | 2015-10-29 |
| CN103716141A (en) | 2014-04-09 |
| CN102106176B (en) | 2015-08-26 |
| JP2011530259A (en) | 2011-12-15 |
| CN103716141B (en) | 2018-03-27 |
| JP5977946B2 (en) | 2016-08-24 |
| KR101515042B1 (en) | 2015-04-24 |
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