CN101399644A - Method, system and device for implementing hybrid automatic request retransmission feedback mechanism - Google Patents
Method, system and device for implementing hybrid automatic request retransmission feedback mechanism Download PDFInfo
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- CN101399644A CN101399644A CNA2007101225515A CN200710122551A CN101399644A CN 101399644 A CN101399644 A CN 101399644A CN A2007101225515 A CNA2007101225515 A CN A2007101225515A CN 200710122551 A CN200710122551 A CN 200710122551A CN 101399644 A CN101399644 A CN 101399644A
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Abstract
The invention discloses a method for realizing a hybrid automatic request repeat feedback mechanism. The method comprises the following steps: a base station transmits a shared control channel (HS-SCCH) of a high-speed downlink shared channel, and a downlink scheduling control channel of high-speed downlink packet access; a terminal decodes the received HS-SCCH, and receives a data packet loaded on a high-speed physical downlink shared channel; and the terminal carries out hybrid automatic request repeat feedback on a shared information channel (HS-SICH) corresponding to the HS-SCCH and an uplink feedback channel of high-speed downlink packet access. The invention also discloses a system and base station side/terminal side equipment for realizing the hybrid automatic request repeat feedback mechanism. By adopting the method, the system and the equipment, information can be fed back on the HS-SICH.
Description
Technical field
The present invention relates to mix automatic request retransmission (HARQ) feedback technique, relate in particular to a kind of method, system and equipment of realizing the HARQ feedback mechanism based on public high speed downlink packet access of radio network temporary mark (H-RNTI).
Background technology
In order to satisfy the growing demand to the HRPD (high rate packet data) access service of user, 3GPP Rel5 has introduced high speed downlink packet access (HSDPA) technology.Wherein, adopt Adaptive Modulation and Coding (AMC) or HARQ technology to be used to realize high order modulation; And increased the fast dispatch that a media access control layer HSDPA (MAC-hs) entity is used to realize data in base station side.Adopt the key technology of AMC/HARQ and these HSDPA of MAC-hs, not only can obtain higher user's peak rate and cell data throughput, and reduce data transmission delay.
After introducing the HSDPA technology, the channel of corresponding introducing comprises: high speed descending sharing channel (HS-DSCH, High Speed Downlink Shared Channel); High-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH, High Speed Physical Downlink Shared Channel); The shared control channel of HS-DSCH (HS-SCCH, Shared Control Channel for HS-DSCH); Share information channel (HS-SICH, Shared Information Channel).
Wherein, HS-DSCH is used for bearing downlink HSDPA data as the transmission channel of HSDPA, finishes the transmission of high-speed down data, is mapped on the HS-PDSCH.A plurality of terminals (UE) are shared HS-DSCH by time division multiplexing and code division multiplexing.HS-DSCH adopts link adaptation techniques, and always is attended by a DPCH (DPCH) and one or more HS-SCCH.Except that HS-DSCH, other channels all are physical channels.Wherein, up HS-SICH and descending HS-SCCH are the shared control channels of two physical layers relevant with HS-DSCH, by the cooperation of these two control channels, finish the closed-loop control of transfer of data.Here, HS-SICH also can be called the HSDPA uplink feedback channel.HS-SCCH also can be called HSDPA descending scheduling control channel.
Wherein, HS-SCCH is the down control channel of HSDPA, takies two descending spreading factors (SF) and be 16 code channel, adopts fixedly quaternary PSK (QPSK) modulation system, the control information that is used to carry HS-DSCH.Concerning the Transmission Time Interval (TTI) of each HS-DSCH, it is the relevant Downlink Control Information of HS-DSCH that UE carries that HS-SCCH is all arranged.
Following table 1 is a HS-SCCH channel institute loaded information, as shown in table 1, the control information of HS-SCCH carrying comprises transport format resource indication (TFRI) information, HARQ information, H-RNTI information and uplink synchronous control word (SS) information/uplink power control control word (TPC) information.Wherein, TFRI information is used to indicate the transformat of HS-DSCH subsequently, comprises transmission block size (TBS) information of time-slot code channel assignment information, modulation system and the transmission block of HS-DSCH.HARQ information comprises HARQ process identifier, incremental redundancy version number, new data indication and is used for the cyclic sequence (HCSN, HS-SCCH Cyclic Sequence Number) of the HS-SCCH channel of HS-SCCH channel quality estimation.Here, different incremental redundancy version rate-matched scheme that number decision is different and different 16-QAM bit reset scheme.H-RNTI information is used to distinguish the different UEs on this shared channel of HS-DSCH.
Table 1
Wherein, HS-SICH is the ascending control channel of HSDPA, take a up SF and be 16 code channel, adopt fixedly QPSK modulation system, be used for the data block that receives on the HS-DSCH is replied with ACK/NACK message, and the quality information of feeding back downlink link, promptly HS-DSCH channel quality indication (CQI) is so that help base station node B to dispatch better.In addition, HS-SICH power control control word (TPC) information of carries downlink also.
And the control procedure of HSDPA shared channel timing relationship and HS-SCCH is specially: after downlink data arrives, send earlier Downlink Control Information through Node B scheduling on HS-SCCH; After UE receives HS-SCCH, set apart the control information on the control channel is decoded; Afterwards, according to this control information monitored data channel, and correctly receive HS-DSCH and be mapped to descending HSDPA data on the HS-PDSCH; At last, utilize corresponding HS-SICH channel feedback ACK/NACK message to give NodeB.
At present, in the system of all kinds of booster stages of HSDPA, in the HSPA+ system, for the data rate that improves common signal channel with reduce time delay, adopted method by HSDPA channel bearing common channel data, correspondingly introduced public H-RNTI sign, base station dispatcher uses public H-RNTI sign to carry out addressing under the situation of not obtaining dedicated H-RNTI.And base station dispatcher generally adopts the HARQ mechanism of not having feedback under the situation of using the addressing of public H-RNTI sign, that is to say, UE receiving under the situation of public H-RNTI, can't be on HS-SICH feedback information.Here, base station dispatcher uses dedicated H-RNTI send data can only for certain particular UE, so only uses dedicated H-RNTI can distinguish each UE; And base station dispatcher uses public H-RNTI to represent a UE group, send data can for a plurality of UE, so only use public H-RNTI can't distinguish each UE, certain UE also needs basis to receive the high-rise terminal identification information in the packet judges whether it is the data of issuing self, and distinguishes each UE by this way.
In sum, because HS-SICH is the channel that is used for feedback information, if therefore do not have feedback information, then this channel just was in the free time, caused the channel resource waste.In addition, prior art adopts does not have the reduction that feedback HARQ mechanism must cause channel resource waste/throughput of system.And, for system's employing TDD mode of all kinds of booster stages of HSDPA, under the TDD mode, between this scheduling controlling channel of HS-SCCH and this feedback channel of HS-SICH, have binding relationship one to one, scheduling control information sends by HS-SCCH, correspondingly, do not have feedback HARQ mechanism if adopt, can cause the channel resource waste of the HS-SICH corresponding with H-SCCH.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of and realizes the method for HARQ feedback mechanism based on public H-RNTI, receives under the public H-RNTI situation at UE, can be on HS-SICH feedback information.
Another object of the present invention is to provide a kind of and realize the system of HARQ feedback mechanism, receive under the public H-RNTI situation at UE based on public H-RNTI, can be on HS-SICH feedback information.
Another purpose of the present invention is to provide a kind of and realizes the base station side/terminal side equipment of HARQ feedback mechanism based on public H-RNTI, receives under the public H-RNTI situation at UE, can be on HS-SICH feedback information.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method based on public H-RNTI realization HARQ feedback mechanism, this method may further comprise the steps:
The high speed downlink packet that sends A, base station node B inserts descending scheduling control channel HS-SCCH; And carry public H-RNTI information on the described HS-SCCH;
B, terminal UE are decoded to the described HS-SCCH that receives, and are gone up data packet loaded according to described public H-RNTI message pick-up high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH;
C, described UE be according to receiving high-rise terminal identification information in the packet, carries out the HARQ feedback on the uplink feedback channel HS-SICH inserting with the corresponding high speed downlink packet of described HS-SCCH.
Wherein, also comprise before the steps A:
X1, described Node B be according to the data type in the packet, judges that whether current data is a little to the data of multiple spot PTM type, if, execution in step X2 then; Otherwise, execution in step A;
X2, described Node B are provided with corresponding retransmission number of times and modulation coding mode to described current data; Execution in step A.
Wherein, also comprise before the step X1:
Radio network controller adds the bit of indication current data type in the Frame of described packet, current data is the data that send to a UE, and sign current data type is a point-to-point PTP type; Current data is the data that send to an above UE, and sign current data type is the PTM type.
Wherein, step B further is:
B1, described UE described HS-SCCH decoding to receiving, and after judging that described public H-RNTI information is legal, receive described packet.
Wherein, receiving described packet among the step B1 is specially: whether described UE judges correct to the decoding of described packet, if correct, then submit the terminal high level and decodes execution in step C; Otherwise, finish current HARQ process of feedback.
Wherein, step C is specially: described terminal is high-rise judges whether be packaged with described high-rise terminal identification information in the described packet, if the high-rise notice of then described terminal terminal physical layer carries out the HARQ feedback, terminal physical layer carries out the HARQ feedback on described HS-SICH; Otherwise, finish current HARQ process of feedback.
Wherein, also comprise behind the step C:
D, base station dispatcher are dispatched according to the channel quality measurement in the feedback information after receiving the described HARQ of carrying out feedack.
A kind of system based on public H-RNTI realization HARQ feedback mechanism, this system comprises: base station side transmitting element, end side receiving element, end side decoding unit and end side HARQ feedback unit; Wherein,
The base station side transmitting element is used to send HS-SCCH and the packet of needs by public H-RNTI information addressing transmission;
The end side receiving element is used to receive described HS-SCCH and sends to described end side decoding unit; And, be received in the described packet that HS-PDSCH goes up carrying according to the described public H-RNTI information that receives;
The end side decoding unit is used for described HS-SCCH decoding, and the described public H-RNTI information that decoding is obtained sends to described end side receiving element;
End side HARQ feedback unit, be used for the corresponding HS-SICH of described HS-SCCH on carry out HARQ feedback.
Wherein, this system also comprises: base station side judges that decision package and base station side are provided with the unit; Wherein,
Base station side is judged decision package, is used for the current data that will judge and whether is a little sending to described base station side to the result of multiple spot PTM type the unit is set;
Base station side is provided with the unit, is used for described current data is provided with corresponding retransmission number of times and modulation coding mode.
Wherein, this system also comprises: the base station side identify unit, being used to identify the current data type is PTP type or PTM type.
Wherein, this system also comprises end side judgement decision package, is used for obtaining described public H-RNTI information from described end side decoding unit, and after judging that described public H-RNTI information is legal, is transmitted to described end side receiving element;
Accordingly, described end side receiving element is further used for according to the legal described packet of public H-RNTI message pick-up.
Wherein, described end side decoding unit is further used for the decoding to described packet; Whether correct accordingly, described end side is judged decision package, is further used for obtaining from described end side decoding unit the decoded result of described packet, and the described decoded packet data that will judge the described end side decoding unit of result notification.
Wherein, described end side is judged decision package, whether is packaged with high-rise terminal identification information in the described packet that is further used for judging and notifies described end side HARQ feedback unit.
Wherein, this system also comprises the base station side scheduling unit, is used for obtaining feedback information from described end side HARQ feedback unit, and dispatches according to the channel quality measurement in the described feedback information.
A kind of base station equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment comprises the base station side transmitting element, is used to send HS-SCCH and the packet of needs by public H-RNTI information addressing transmission.
Wherein, this equipment also comprises: base station side judges that decision package and base station side are provided with the unit; Wherein,
Base station side is judged decision package, is used for the current data that will judge and whether is a little sending to described base station side to the result of multiple spot PTM type the unit is set;
Base station side is provided with the unit, is used for described current data is provided with corresponding retransmission number of times and modulation coding mode.
Wherein, this equipment also comprises the base station side identify unit, and being used to identify the current data type is PTP type or PTM type.
Wherein, this equipment also comprises the base station side scheduling unit, is used for obtaining feedback information from end side HARQ feedback unit, and dispatches according to the channel quality measurement in the described feedback information.
A kind of terminal side equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment comprises: end side receiving element, end side decoding unit and end side HARQ feedback unit; Wherein,
The end side receiving element is used to receive HS-SCCH and sends to described end side decoding unit; And, be received in HS-PDSCH and go up data packet loaded according to the public H-RNTI information that receives;
The end side decoding unit is used for described HS-SCCH decoding, and the described public H-RNTI information that decoding is obtained sends to described end side receiving element;
End side HARQ feedback unit, be used for the corresponding HS-SICH of described HS-SCCH on carry out HARQ feedback.
Wherein, this equipment also comprises end side judgement decision package, is used for obtaining described public H-RNTI information from described end side decoding unit, and after judging that described public H-RNTI information is legal, is transmitted to described end side receiving element;
Accordingly, described end side receiving element is further used for according to the legal described packet of public H-RNTI message pick-up.
Wherein, described end side decoding unit is further used for the decoding to described packet; Whether correct accordingly, described end side is judged decision package, is further used for obtaining from described end side decoding unit the decoded result of described packet, and the described decoded packet data that will judge the described end side decoding unit of result notification.
Wherein, described end side is judged decision package, whether is packaged with high-rise terminal identification information in the described packet that is further used for judging and notifies described end side HARQ feedback unit.
Adopt the present invention, have feedback mechanism under the situation of public H-RNTI, UE receiving under the public H-RNTI situation, can be on HS-SICH feedback information.And then base station dispatcher is received and is comprised ACK/NACK and CQI behind interior feedback information, can dispatch according to the channel quality measurement in the feedback information, guarantees the performance index of throughput of system well, more helps obtaining the optimizer system throughput.
Description of drawings
Fig. 1 is the realization flow schematic diagram of the inventive method one embodiment;
Fig. 2 is the realization flow schematic diagram of another embodiment of the inventive method.
Embodiment
Core concept of the present invention is, and: UE is receiving under the public H-RNTI situation, can be on HS-SICH feedback information, and UE determines whether to feed back HARQ information according to whether comprising high-rise terminal identification information in the packet that receives.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Method embodiment one is for realizing the implementation of HARQ feedback mechanism in end side.As shown in Figure 1, the realization flow of present embodiment may further comprise the steps:
Here, public H-RNTI information is used to finish the addressing transmission of packet.That is to say that the packet that sends to UE identifies and sends with public H-RNTI information, afterwards, UE receives packet according to public H-RNTI information.
Wherein, step 102 further is:
Step 1021, the HS-SCCH decoding of UE to receiving, and after judging that described public H-RNTI information is legal, go up data packet loaded according to public H-RNTI message pick-up HS-PDSCH.Here, the public H-RNTI information of legal finger is correct.
Receiving the last data packet loaded of HS-PDSCH in the step 1021 is specially:
Whether step 1021a, UE judge correct to the HS-PDSCH data decode of described packet, if correct, then submit the terminal high level and decode, execution in step 103; Otherwise, need not on HS-SICH, to carry out the HARQ feedback, and finish current HARQ process of feedback.
Corresponding to step 1021a, step 103 is specially: terminal is high-rise judges receiving HS-PDSCH goes up in the data packet loaded whether be packaged with high-rise terminal identification information, if, then the high-rise notice of terminal terminal physical layer carries out the HARQ feedback, terminal physical layer with the corresponding HS-SICH of HS-SCCH on carry out HARQ feedback, and finish current HARQ process of feedback; Otherwise the high-rise notice of terminal terminal physical layer does not carry out the HARQ feedback, and finishes current HARQ process of feedback.
Here, base station dispatcher is received feedback information, behind ACK/NACK and CQI, can dispatch according to the channel quality measurement in the feedback information, thereby, guarantee well the performance index of throughput of system more to help obtaining the optimizer system throughput.
At method embodiment one, it is to be noted, when base station dispatcher uses public H-RNTI addressing, if issuing certain, this packet determines UE, then comprise high-rise terminal identification information in this packet, need UE to carry out the HARQ feedback, UE can judge according to the high-rise terminal identification information that comprises in this packet whether this packet is one's own data so, judgement is one's own data, and the high-rise notice of terminal terminal physical layer carries out the HARQ feedback.If this packet is to issue a plurality of UE, the business datum of multiple spot (PTM) type is put in the paging that triggers such as similar system information updating and system message update etc., then do not comprise high-rise terminal identification information in this type of packet, need not UE and carry out the HARQ feedback, after the terminal high level was correctly decoded so, the notice terminal physical layer did not carry out the HARQ feedback.
Method embodiment two is for judging that except realizing the HARQ feedback mechanism in end side, also having increased in base station side can UE carry out the implementation of the mechanism of HARQ feedback.As shown in Figure 2, the realization flow of present embodiment may further comprise the steps:
Such as, at data carried by data on Dedicated Control Channel (DCCH) and this logic of class channel of Dedicated Traffic Channel (DTCH), RNC is the PTP type with the current data type identification directly.Go up data carried by data at Common Control Channel (CCCH) and Paging Control Channel (PCCH), need further judgment data bag whether to comprise high-rise terminal identification information, if comprise high-rise terminal identification information, then just the current data type identification is the PTP type.At data carried by data on system broadcasts control channel (BCCH) and this logic of class channel of Paging Control Channel (PCCH), when the message such as paging of bearing system information updating and system message update triggering, owing to do not comprise high-rise terminal identification information in the packet, be the PTM type therefore with the current data type identification.
After step 202, Node B received and need send to the packet of UE by public H-RNTI information, whether the current data in the judgment data bag was the data of PTM type, if then execution in step 203; Otherwise, execution in step 204.
Here, comprise the indication of data type in the packet, being used to indicate the current data type is PTP type or PTM type.
Wherein, step 205 further is:
Step 2051, the described HS-SCCH decoding of UE to receiving, and after judging that described public H-RNTI information is legal, go up data packet loaded according to public H-RNTI message pick-up HS-PDSCH.
Receiving described packet in the step 2051 is specially:
Whether step 2051a, described UE judge correct to the decoding of described packet, if correct, then submit the terminal high level and decode, execution in step 206; Otherwise, need not on HS-SICH, to carry out the HARQ feedback, and finish current HARQ process of feedback.
Corresponding to step 2051a, step 206 is specially: terminal is high-rise judges whether be packaged with high-rise terminal identification information in the described packet, if then execution in step 2061; Otherwise, execution in step 2062;
Step 2061, judgement current data type are PTP, and the high-rise notice of terminal terminal physical layer carries out the HARQ feedback, and terminal physical layer carries out the HARQ feedback on HS-SICH, finish current HARQ process of feedback.
Step 2062, judgement current data type are PTM, and the high-rise notice of terminal terminal physical layer does not carry out the HARQ feedback, finishes current HARQ process of feedback.
Two embodiment of contrast the inventive method are as can be known: at method embodiment one, when not receiving feedback information on HS-SICH, the feedback information that base station dispatcher is given tacit consent to described packet is NACK, and carry out to retransmit, up to reaching maximum retransmission.So, under the situation that does not comprise high-rise terminal identification information, can't carry out the waste that the HARQ feedback causes retransmitting resource.Node B can't judge whether the data in the described packet can carry out the HARQ feedback.At method embodiment two, RNC adds the data type indication in described packet, and designation data is issued a UE or issued a plurality of UE, and it knows that the data type in the described packet is PTP type or PTM type.So, NodeB can judge whether the data in the described packet can carry out the HARQ feedback according to data type, for not carrying out HARQ feedback data type, Node B is provided with rational number of retransmissions and modulation coding mode, can guarantee performance index such as system resource and throughput well.
The implementation of system of the present invention is:
A kind of system based on public H-RNTI realization HARQ feedback mechanism, this system comprises: base station side transmitting element, end side receiving element, end side decoding unit and end side HARQ feedback unit.
Wherein, the base station side transmitting element is used to send HS-SCCH and the packet of needs by public H-RNTI information addressing transmission.The end side receiving element is used to receive described HS-SCCH and sends to described end side decoding unit; And, be received in the described packet that HS-PDSCH goes up carrying according to the described public H-RNTI information that receives.The end side decoding unit is used for described HS-SCCH decoding, and the described public H-RNTI information that decoding is obtained sends to described end side receiving element.End side HARQ feedback unit, be used for the corresponding HS-SICH of described HS-SCCH on carry out HARQ feedback.
A kind of system based on public H-RNTI realization HARQ feedback mechanism, this system also comprises: base station side judges that decision package and base station side are provided with the unit.
Wherein, base station side is judged decision package, is used for the current data that will judge and whether is a little sending to described base station side to the result of multiple spot PTM type the unit is set.Base station side is provided with the unit, is used for described current data is provided with corresponding retransmission number of times and modulation coding mode.
A kind of system based on public H-RNTI realization HARQ feedback mechanism, this system also comprises: the base station side identify unit, being used to identify the current data type is PTP type or PTM type.
A kind of system that realizes the HARQ feedback mechanism based on public H-RNTI, this system also comprises: end side is judged decision package, be used for obtaining described public H-RNTI information, and after judging that described public H-RNTI information is legal, be transmitted to described end side receiving element from described end side decoding unit.Accordingly, described end side receiving element is further used for according to the legal described packet of public H-RNTI message pick-up.
Here, described end side decoding unit is further used for the decoding to described packet.Whether correct accordingly, described end side is judged decision package, is further used for obtaining from described end side decoding unit the decoded result of described packet, and the described decoded packet data that will judge the described end side decoding unit of result notification.
And then described end side is judged decision package, and whether the described packet that also is used for judging is packaged with high-rise terminal identification information is notified described end side HARQ feedback unit.
A kind of system based on public H-RNTI realization HARQ feedback mechanism, this system also comprises: the base station side scheduling unit is used for obtaining feedback information from described end side HARQ feedback unit, and dispatches according to the channel quality measurement in the described feedback information.
The implementation of base station equipment of the present invention is:
A kind of base station equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment comprises the base station side transmitting element, is used to send HS-SCCH and the packet of needs by public H-RNTI information addressing transmission.
A kind of base station equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment also comprises: base station side judges that decision package and base station side are provided with the unit.
Wherein, base station side is judged decision package, is used for the current data that will judge and whether is a little sending to described base station side to the result of multiple spot PTM type the unit is set.Base station side is provided with the unit, is used for described current data is provided with corresponding retransmission number of times and modulation coding mode.
A kind of base station equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment also comprises: the base station side identify unit, being used to identify the current data type is PTP type or PTM type.
A kind of base station equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment also comprises: the base station side scheduling unit is used for obtaining feedback information from end side HARQ feedback unit, and dispatches according to the channel quality measurement in the described feedback information.
The implementation of terminal side equipment of the present invention is:
A kind of terminal side equipment based on public H-RNTI realization HARQ feedback mechanism, this equipment comprises: end side receiving element, end side decoding unit and end side HARQ feedback unit.
Wherein, the end side receiving element is used to receive HS-SCCH and sends to described end side decoding unit; And, be received in HS-PDSCH and go up data packet loaded according to the public H-RNTI information that receives.The end side decoding unit is used for described HS-SCCH decoding, and the described public H-RNTI information that decoding is obtained sends to described end side receiving element.End side HARQ feedback unit, be used for the corresponding HS-SICH of described HS-SCCH on carry out HARQ feedback.
A kind of terminal side equipment of realizing the HARQ feedback mechanism based on public H-RNTI, this equipment also comprises: end side is judged decision package, be used for obtaining described public H-RNTI information from described end side decoding unit, and after judging that described public H-RNTI information is legal, be transmitted to described end side receiving element.Accordingly, described end side receiving element is further used for according to the legal described packet of public H-RNTI message pick-up.
Here, described end side decoding unit is further used for the decoding to described packet; Whether correct accordingly, described end side is judged decision package, is further used for obtaining from described end side decoding unit the decoded result of described packet, and the described decoded packet data that will judge the described end side decoding unit of result notification.
And then described end side is judged decision package, and whether the described packet that also is used for judging is packaged with high-rise terminal identification information is notified described end side HARQ feedback unit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (22)
1, a kind of method that realizes the HARQ feedback mechanism based on public H-RNTI is characterized in that this method may further comprise the steps:
The high speed downlink packet that sends A, base station node B inserts descending scheduling control channel HS-SCCH; And carry public H-RNTI information on the described HS-SCCH;
B, terminal UE are decoded to the described HS-SCCH that receives, and are gone up data packet loaded according to described public H-RNTI message pick-up high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH;
C, described UE be according to receiving high-rise terminal identification information in the packet, carries out the HARQ feedback on the uplink feedback channel HS-SICH inserting with the corresponding high speed downlink packet of described HS-SCCH.
2, method according to claim 1 is characterized in that, also comprises before the steps A:
X1, described Node B be according to the data type in the packet, judges that whether current data is a little to the data of multiple spot PTM type, if, execution in step X2 then; Otherwise, execution in step A;
X2, described Node B are provided with corresponding retransmission number of times and modulation coding mode to described current data; Execution in step A.
3, method according to claim 2 is characterized in that, also comprises before the step X1:
Radio network controller adds the bit of indication current data type in the Frame of described packet, current data is the data that send to a UE, and sign current data type is a point-to-point PTP type; Current data is the data that send to an above UE, and sign current data type is the PTM type.
4, according to claim 1,2 or 3 described methods, it is characterized in that step B further is:
B1, described UE described HS-SCCH decoding to receiving, and after judging that described public H-RNTI information is legal, receive described packet.
5, method according to claim 4 is characterized in that, receive described packet among the step B1 and be specially: whether described UE judges correct to the decoding of described packet, if correct, then submit the terminal high level and decodes execution in step C; Otherwise, finish current HARQ process of feedback.
6, method according to claim 5, it is characterized in that, step C is specially: described terminal is high-rise judges whether be packaged with described high-rise terminal identification information in the described packet, if, the high-rise notice of then described terminal terminal physical layer carries out the HARQ feedback, and terminal physical layer carries out the HARQ feedback on described HS-SICH; Otherwise, finish current HARQ process of feedback.
7, method according to claim 4 is characterized in that, also comprises behind the step C:
D, base station dispatcher are dispatched according to the channel quality measurement in the feedback information after receiving the described HARQ of carrying out feedack.
8, a kind of system that realizes the HARQ feedback mechanism based on public H-RNTI is characterized in that this system comprises: base station side transmitting element, end side receiving element, end side decoding unit and end side HARQ feedback unit; Wherein,
The base station side transmitting element is used to send HS-SCCH and the packet of needs by public H-RNTI information addressing transmission;
The end side receiving element is used to receive described HS-SCCH and sends to described end side decoding unit; And, be received in the described packet that HS-PDSCH goes up carrying according to the described public H-RNTI information that receives;
The end side decoding unit is used for described HS-SCCH decoding, and the described public H-RNTI information that decoding is obtained sends to described end side receiving element;
End side HARQ feedback unit, be used for the corresponding HS-SICH of described HS-SCCH on carry out HARQ feedback.
9, system according to claim 8 is characterized in that, this system also comprises: base station side judges that decision package and base station side are provided with the unit; Wherein,
Base station side is judged decision package, is used for the current data that will judge and whether is a little sending to described base station side to the result of multiple spot PTM type the unit is set;
Base station side is provided with the unit, is used for described current data is provided with corresponding retransmission number of times and modulation coding mode.
10, system according to claim 9 is characterized in that, this system also comprises: the base station side identify unit, being used to identify the current data type is PTP type or PTM type.
11, according to Claim 89 or 10 described systems,, it is characterized in that, this system also comprises end side judgement decision package, be used for obtaining described public H-RNTI information from described end side decoding unit, and after judging that described public H-RNTI information is legal, be transmitted to described end side receiving element;
Accordingly, described end side receiving element is further used for according to the legal described packet of public H-RNTI message pick-up.
12, system according to claim 11 is characterized in that, described end side decoding unit is further used for the decoding to described packet; Whether correct accordingly, described end side is judged decision package, is further used for obtaining from described end side decoding unit the decoded result of described packet, and the described decoded packet data that will judge the described end side decoding unit of result notification.
13, system according to claim 12 is characterized in that, described end side is judged decision package, whether is packaged with high-rise terminal identification information in the described packet that is further used for judging and notifies described end side HARQ feedback unit.
14, system according to claim 11 is characterized in that, this system also comprises the base station side scheduling unit, is used for obtaining feedback information from described end side HARQ feedback unit, and dispatches according to the channel quality measurement in the described feedback information.
15, a kind of base station equipment based on public H-RNTI realization HARQ feedback mechanism is characterized in that this equipment comprises the base station side transmitting element, is used to send HS-SCCH and the packet of needs by public H-RNTI information addressing transmission.
16, equipment according to claim 15 is characterized in that, this equipment also comprises: base station side judges that decision package and base station side are provided with the unit; Wherein,
Base station side is judged decision package, is used for the current data that will judge and whether is a little sending to described base station side to the result of multiple spot PTM type the unit is set;
Base station side is provided with the unit, is used for described current data is provided with corresponding retransmission number of times and modulation coding mode.
17, equipment according to claim 15 is characterized in that, this equipment also comprises the base station side identify unit, and being used to identify the current data type is PTP type or PTM type.
18, according to claim 15,16 or 17 described equipment, it is characterized in that this equipment also comprises the base station side scheduling unit, be used for obtaining feedback information, and dispatch according to the channel quality measurement in the described feedback information from end side HARQ feedback unit.
19, a kind of terminal side equipment of realizing the HARQ feedback mechanism based on public H-RNTI is characterized in that this equipment comprises: end side receiving element, end side decoding unit and end side HARQ feedback unit; Wherein,
The end side receiving element is used to receive HS-SCCH and sends to described end side decoding unit; And, be received in HS-PDSCH and go up data packet loaded according to the public H-RNTI information that receives;
The end side decoding unit is used for described HS-SCCH decoding, and the described public H-RNTI information that decoding is obtained sends to described end side receiving element;
End side HARQ feedback unit, be used for the corresponding HS-SICH of described HS-SCCH on carry out HARQ feedback.
20, equipment according to claim 19, it is characterized in that this equipment also comprises end side judgement decision package, is used for obtaining described public H-RNTI information from described end side decoding unit, and after judging that described public H-RNTI information is legal, be transmitted to described end side receiving element;
Accordingly, described end side receiving element is further used for according to the legal described packet of public H-RNTI message pick-up.
21, equipment according to claim 20 is characterized in that, described end side decoding unit is further used for the decoding to described packet; Whether correct accordingly, described end side is judged decision package, is further used for obtaining from described end side decoding unit the decoded result of described packet, and the described decoded packet data that will judge the described end side decoding unit of result notification.
22, equipment according to claim 21 is characterized in that, described end side is judged decision package, whether is packaged with high-rise terminal identification information in the described packet that is further used for judging and notifies described end side HARQ feedback unit.
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