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CN101677459A - Mapping method of information channel, ACK launch and receiving method, device and system - Google Patents

Mapping method of information channel, ACK launch and receiving method, device and system Download PDF

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Publication number
CN101677459A
CN101677459A CN200810211344A CN200810211344A CN101677459A CN 101677459 A CN101677459 A CN 101677459A CN 200810211344 A CN200810211344 A CN 200810211344A CN 200810211344 A CN200810211344 A CN 200810211344A CN 101677459 A CN101677459 A CN 101677459A
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Prior art keywords
channel
ack
physical resource
control
resource block
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CN200810211344A
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Chinese (zh)
Inventor
曲秉玉
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN200810211344A priority Critical patent/CN101677459A/en
Priority to PCT/CN2009/074078 priority patent/WO2010031360A1/en
Publication of CN101677459A publication Critical patent/CN101677459A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明实施例公开了一种信道的映射方法、ACK的发射和接收方法、装置和系统，该方法用于确定至少两个载波中任一载波的控制/业务信道对应的确认ACK信道，包括：根据所述控制/业务信道的物理资源块和ACK信道的对应关系，确定所述物理资源块对应的ACK信道；根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道。本发明实施例通过设定控制/业务信道和ACK信道的映射关系，确定控制/业务信道对应的ACK信道，弥补了现有技术中多个载波的控制/业务信道对应相同的ACK信道，会产生冲突的缺陷，提高了ACK资源的使用效率。

The embodiment of the present invention discloses a channel mapping method, ACK transmission and reception method, device and system, the method is used to determine the acknowledgment ACK channel corresponding to the control/traffic channel of any carrier in at least two carriers, including: According to the corresponding relationship between the physical resource block of the control/traffic channel and the ACK channel, determine the ACK channel corresponding to the physical resource block; according to the user-specific mapping rule and the ACK channel corresponding to the physical resource block of the control/traffic channel , determining an ACK channel corresponding to a control/traffic channel of any one of the at least two carriers. In the embodiment of the present invention, by setting the mapping relationship between the control/traffic channel and the ACK channel, the ACK channel corresponding to the control/traffic channel is determined, which makes up for the fact that the control/traffic channels of multiple carriers correspond to the same ACK channel in the prior art. The defect of conflict improves the utilization efficiency of ACK resources.

Description

The mapping method of channel, ACK transmit and receive methods, devices and systems
Technical field
The embodiment of the invention relates to communication technical field, and particularly a kind of mapping method of channel, ACK's transmits and receives methods, devices and systems.
Background technology
Carrier aggregation, promptly two or more carrier aggregation of down link together, to support the transmitted bandwidth greater than 20MHz, the transmitted bandwidth of carrier wave maximum in LTE (Long Term Evolution, Long Term Evolution) system is 20MHz here.A terminal according to the difference of ability, can receive a carrier wave, perhaps the transmission signal of a plurality of carrier waves.Equally, up link also can be supported carrier aggregation, and promptly terminal can be launched the polymerization of two or more carrier wave according to ability, to support the transmitted bandwidth greater than 20MHz.LTE-Advanced (Long Term Evolution-Advanced, senior Long Term Evolution) technology of employing carrier aggregation in the system, consider compatible, require old LTE terminal still can use wherein branch's carrier wave, reception/emission data on each that promptly can be therein or the part carrier wave, but have only the LTE-Advanced terminal just can launch/receive data on a plurality of carrier waves simultaneously.Therefore, each descending branch carrier wave is the LTE carrier wave, the corresponding up branch's carrier wave that has with the LTE of descending carrier correspondence.
A wherein important scene is the asymmetrical carrier aggregation of up-downgoing.For example, a terminal, according to the difference of ability, the perhaps requirement of the scheduling of network, perhaps just there is the asymmetric configuration of up-downgoing carrier wave in system itself, may be in a period of time, the polymerization of only carrying out descending carrier receives, and does not carry out the polymerization emission of up-link carrier, concrete, terminal can receive transmitting of descending a plurality of carrier waves, but the emission of upward signal can only be carried out on a carrier wave.Perhaps, only carry out the polymerization emission of up-link carrier, and do not carry out the polymerization reception of descending carrier.
Terminal can receive transmitting of a descending N carrier wave, and carries out the signal emission on a up M carrier wave.
In the LTE system, Physical Downlink Control Channel has carried the information of indication physical data channel usually, after terminal receives Physical Downlink Control Channel, utilize its information of carrying to carry out operations such as the demodulation of physical data channel, decoding, if decoding is correct, CRC (Cyclic Redundancy Check for example, cyclic redundancy check (CRC)) check is correct, then feeding back ACK (Acknowledgement confirms), the incorrect NACK (Negative acknowledgement denies) that then feeds back.ACK/NACK launches on ack channel.In the LTE system, when adopting dynamic dispatching, with which ack channel emission ACK/NACK order, by PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) and the corresponding relation of ack channel determine, be that downlink data with which PDCCH is indicated, just whether correct with the ack channel feedback decoding of which PDCCH correspondence.
The corresponding relation of PDCCH and ack channel is described below in LTE:
At first the time-frequency region of the control channel of a sub-district is divided into a plurality of unit, and these unit are called for short CCE (Control Channel Element, control channel unit).A control channel is made up of a plurality of CCE, and for example: a control channel in the LTE system can be made up of 1CCE, 2CCE, 4CCE and 8CCE.
The ack channel of PDCCH correspondence, the CCE of the index minimum in the CCE that is comprised by the PDCCH set determines.
N descending carrier can appear in LTE-Advanced (Long Term Evolution-Advanced, senior Long Term Evolution) system, the situation of 1 up-link carrier, and for this situation, a kind of simple technology is still to adopt the mapping method of LTE regulation.
As shown in Figure 1, CCE0, CCE1 ... corresponding to respectively ACK0, ACK1 ... the ack channel of mark, according to the PDCCH of LTE regulation and the mapping ruler of ack channel, by the PDCCH that CCE0 and CCE1 form, corresponding ack channel is ACK0.At this moment, if the mapping ruler of the PDCCH of two descending carriers and ack channel is identical, then the PDCCH that is made up of identical CCE in these two descending carriers is the same ack channel of correspondence, thereby causes conflict.
Summary of the invention
The embodiment of the invention provide a kind of channel mapping method, ACK transmit and receive methods, devices and systems, produce conflict with the corresponding identical ack channel of control/Traffic Channel of avoiding a plurality of carrier waves.
For achieving the above object, the embodiment of the invention provides a kind of mapping method of channel on the one hand, comprising:
According to the Physical Resource Block of described control/Traffic Channel and the corresponding relation of ack channel, determine the ack channel of described Physical Resource Block correspondence;
According to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and described control/Traffic Channel, determine the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave in described at least two carrier waves.
On the other hand, the embodiment of the invention also provides a kind of mapping device of channel, comprising:
First determination module is used for determining the ack channel of described Physical Resource Block correspondence according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of affirmation ack channel;
Second determination module is used for mapping ruler and the described first determination module definite ack channel specific according to the user, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves.
On the one hand, the embodiment of the invention also provides the launching technique of a kind of ACK/NACK, comprising again:
According to the Physical Resource Block of control/Traffic Channel and the corresponding relation of affirmation ack channel, determine the ack channel of described Physical Resource Block correspondence;
According to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and described control/Traffic Channel, determine the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves;
Emission ACK/ denies NACK on described definite ack channel.
On the one hand, the embodiment of the invention also provides the emitter of a kind of ACK/NACK, comprising again:
The first channel determination module is used for determining the ack channel of described Physical Resource Block correspondence according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of affirmation ack channel;
The second channel determination module is used for mapping ruler and the described first channel determination module definite ack channel specific according to the user, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves;
Transmitter module is used for launching ACK/ and denies NACK on the ack channel that described second channel determination module is determined.
On the one hand, the embodiment of the invention also provides the method for reseptance of a kind of ACK/NACK, comprising again:
According to the Physical Resource Block of control/Traffic Channel and the corresponding relation of affirmation ack channel, determine the ack channel of described Physical Resource Block correspondence;
According to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and described control/Traffic Channel, determine the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves;
On described definite ack channel, receive ACK/ and deny NACK.
On the one hand, the embodiment of the invention also provides the receiving system of a kind of ACK/NACK, comprising again:
The first channel determination module is used for determining the ack channel of described Physical Resource Block correspondence according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of affirmation ack channel;
The second channel determination module is used for mapping ruler and the described first channel determination module definite ack channel specific according to the user, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves;
Receiver module is used for receiving ACK/NACK on the ack channel that described second channel determination module is determined.
On the one hand, the embodiment of the invention also provides a kind of communication system, comprising again:
The mapping device of channel, be used for according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of affirmation ack channel, determine the ack channel of described Physical Resource Block correspondence, and, determine the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves according to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and described control/Traffic Channel;
The emitter of ACK is used for launching ACK/NACK on the ack channel that the mapping device of described channel is determined;
The receiving system of ACK is used for receiving ACK/NACK on the ack channel that the mapping device of described channel is determined.
Compared with prior art, the embodiment of the invention has the following advantages: the embodiment of the invention by setting in the communication system arbitrary carrier wave at least two carrier waves control/Traffic Channel and the mapping relations of ack channel, determine the ack channel of this control/Traffic Channel correspondence, remedy the corresponding identical ack channel of the control of a plurality of carrier waves in the prior art/Traffic Channel, can produce the defective of conflict.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the corresponding relation schematic diagram of prior art CCE and ack channel;
Fig. 2 is the flow chart of the mapping method of a kind of channel of the embodiment of the invention;
When Fig. 3 can receive 2 descending carriers for terminal in the one embodiment of the invention, the mapping relations schematic diagram of CCE and PDCCH;
When Fig. 4 can receive 4 descending carriers for terminal in the one embodiment of the invention, the mapping relations schematic diagram of CCE and PDCCH;
When Fig. 5 can receive 2 descending carriers for terminal in another embodiment of the present invention, the mapping relations schematic diagram of CCE and PDCCH;
Fig. 6 is the structure chart of the mapping device of a kind of channel of the embodiment of the invention;
Fig. 7 is the structure chart of the mapping device of the another kind of channel of the embodiment of the invention;
Fig. 8 is the flow chart of the launching technique of a kind of ACK/NACK of the embodiment of the invention;
Fig. 9 is the structure chart of the emitter of a kind of ACK/NACK of the embodiment of the invention;
Figure 10 is the flow chart of the method for reseptance of a kind of ACK/NACK of the embodiment of the invention;
Figure 11 is the structure chart of the receiving system of a kind of ACK/NACK of the embodiment of the invention;
Figure 12 is the structure chart of a kind of communication system of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtained under the creative work prerequisite.
As shown in Figure 2, be the flow chart of the mapping method of a kind of channel of the embodiment of the invention, this method is used for determining the affirmation ack channel of the control/Traffic Channel correspondence of at least two arbitrary carrier waves of carrier wave, comprising:
Step S201 according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel, determines the ack channel of this Physical Resource Block correspondence.
Step S202 according to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and control/Traffic Channel, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave in these at least two carrier waves.
In one implementation, the corresponding relation of Physical Resource Block and ack channel is specifically as follows:
Physical Resource Block and ack channel are according to the label of Physical Resource Block and ack channel, and order is corresponding one by one.For example: Physical Resource Block 0, Physical Resource Block 1 ... order is corresponding to ACK0, ACK1 ... the ack channel of mark.
Wherein, ack channel according to the Physical Resource Block correspondence of the specific mapping ruler of user and control/Traffic Channel, determine the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave in these at least two carrier waves, just, mapping ruler in Physical Resource Block that control/Traffic Channel comprise the selected Physical Resource Block specific according to the user, the selected Physical Resource Block of different carrier is inequality at least two carrier waves, determines the ack channel of the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves for selected Physical Resource Block correspondence.Because the selected Physical Resource Block of different carrier is inequality at least two carrier waves, the ack channel difference of the control/Traffic Channel correspondence of different carrier in two carrier waves then.
Wherein, according to the Physical Resource Block number that the control/Traffic Channel of the carrier identification of carrier wave and carrier wave comprises, selected Physical Resource Block in the Physical Resource Block that control/Traffic Channel comprises.
The carrier identification of arbitrary carrier wave is i at least two carrier waves, when the Physical Resource Block number that arbitrary carrier wave comprises is n, the label of selected Physical Resource Block is in the Physical Resource Block that this control/Traffic Channel comprises: (a is an integer to offset for i, n)=(i-a) mod n.Wherein, when carrier identification i was a, the carrier wave that is identified adopted the existing mapping ruler of LTE system to determine corresponding ack channel.
The mapping ruler of control/Traffic Channel and ack channel is that the user is specific in the embodiment of the invention, and particularly, carrier identification i is different to different user terminals.For example, the physical control channel that with the control channel is descending carrier is an example, first user terminal receives the data of a descending N carrier wave, but only launch the data of a up carrier wave, then the carrier identification with the descending carrier of a unique up-link carrier correspondence is a1, promptly the mapping ruler of control/Traffic Channel and ack channel adopts the existing mapping ruler of LTE system, offset (a1, n)=(a1-a1) mod n=0.And other carrier identification is not the carrier wave of a1, then can adopt the mapping ruler different with the LTE system, thereby other carrier identification can not used the obsolete ack channel of control/Traffic Channel of LTE carrier wave for the a1 carrier wave.If second user terminal, use a plurality of descending carriers identical with first user terminal, but be to use a up-link carrier different with first user terminal, then significantly, for second user terminal, carrier identification is that the descending carrier of a2 is the descending carrier of the up-link carrier correspondence of second user terminal use, be that carrier identification is that the mapping ruler of control/Traffic Channel and ack channel adopts the existing mapping ruler of LTE system on the descending carrier of a2, offset (a2, n)=(a2-a2) mod n=0.Wherein, the up-link carrier difference that above-mentioned two users' terminal is used is so a1 is different with a2.In sum, the carrier identification of descending carrier is different in the embodiment of the invention, and the rule specific according to the user identifies.Because the ability difference of user terminal, perhaps according to the demand of business, for different user terminals, the number of the carrier wave that uses also may be different with the concrete carrier wave that uses, therefore the mapping ruler of control/Traffic Channel and ack channel is on different carrier waves, also may be according to the difference of user terminal and difference.Such benefit is to have guaranteed that the control/Traffic Channel of LTE carrier wave and the mapping relations of ack channel do not change, the ack channel that other descending carrier can use the LTE carrier wave to discharge, thus improved the ack channel efficiency of resource.
In following examples, equaling 0 with a is that example describes.
For example: for 2 carrier waves, the situation that the control/Traffic Channel of each carrier wave is made up of 2 Physical Resource Block,
For carrier wave 0, and offset (i, n)=offset (0,2)=0mod 2=0.
Then the pairing ack channel of control/Traffic Channel be made up of Physical Resource Block 0 and Physical Resource Block 1 of carrier wave 0 is the ack channel of Physical Resource Block 0 correspondence of this control/Traffic Channel, i.e. ACK0;
For carrier wave 1, offset (i, n)=offset (1,2)=1mod 2=1 then the pairing ack channel of control/Traffic Channel formed by Physical Resource Block 0 and Physical Resource Block 1 of carrier wave 1 be the ack channel of Physical Resource Block 1 correspondence of this control/Traffic Channel, i.e. ACK1.
Said method, a kind of example of just definite Physical Resource Block, the embodiment of the invention is not limited thereto.
In another kind of implementation, the ack channel of Physical Resource Block correspondence is offset the ack channel that label identified that obtains after the default side-play amount for the label of this Physical Resource Block, and this side-play amount is different numerical value at carrier waves different at least two carrier waves.For example, for carrier wave 0, can set side-play amount is 0, and then Physical Resource Block 0, Physical Resource Block 1 ... corresponding to respectively ACK0, ACK1 ... the ack channel of mark; For carrier wave 1, can set side-play amount is 1, and then Physical Resource Block 1, Physical Resource Block 2 ... corresponding to respectively ACK0, ACK1 ... the ack channel of mark.
At this moment, the ack channel of the Physical Resource Block correspondence of label minimum in the Physical Resource Block that comprises for this control/Traffic Channel of the ack channel that can determine this control/Traffic Channel correspondence.
For example: for 2 carrier waves, the situation that the control/Traffic Channel of each carrier wave is made up of 2 Physical Resource Block,
The pairing ack channel of control/Traffic Channel that carrier wave 0 is made up of Physical Resource Block 0 and Physical Resource Block 1 is the ack channel of Physical Resource Block 0 correspondence, i.e. ACK0; The pairing ack channel of control/Traffic Channel that carrier wave 1 is made up of Physical Resource Block 0 and Physical Resource Block 1 equally also is the ack channel of Physical Resource Block 0 correspondence, and for carrier wave 1, the ack channel of Physical Resource Block 0 correspondence is ACK1.
The pairing ack channel of control/Traffic Channel that carrier wave 0 is made up of Physical Resource Block 2 and 3 is the ack channel of Physical Resource Block 2 correspondences, i.e. ACK2; The pairing ack channel of control/Traffic Channel that carrier wave 1 is made up of Physical Resource Block 2 and 3 equally also is the ack channel of Physical Resource Block 2 correspondences, for carrier wave 1, the ack channel of Physical Resource Block 2 correspondences is ACK3, the ack channel of method determine to(for) other control/Traffic Channel is similar with it, does not repeat them here.
In the embodiment of the invention, Traffic Channel can be the physical traffic channels of up-link carrier, and at this moment the Physical Resource Block of this Traffic Channel is RB (Resource Block, a Resource Block); Perhaps, control channel can be the physical control channel of descending carrier, and at this moment the Physical Resource Block of this control channel is CCE.
The mapping method of above-mentioned channel, mapping relations by control/Traffic Channel and ack channel in the setting communication system, determine the ack channel of control/Traffic Channel correspondence, remedied the corresponding identical ack channel of the control of a plurality of carrier waves in the prior art/Traffic Channel, can produce the defective of conflict, and, can make full use of the ACK resource, improved the service efficiency of ACK resource.
In the description of following examples of the present invention, the physical control channel that all with the control channel is descending carrier is that example describes.
One embodiment of the present of invention can receive N descending carrier with terminal, and can only launch 1 definite up-link carrier is that example describes.
In the present embodiment, at first determine the CCE of each descending carrier and the corresponding relation of ACK.This corresponding relation can be CCE0, CCE1 ... corresponding to respectively ACK0, ACK1 ... the ack channel of mark, also can be other corresponding relation, for example: CCE0, CCE1 ..., CCEN is corresponding A CKN respectively ..., ACK1, the ack channel of ACK0 mark.In the present embodiment, CCE0, CCE1 ... corresponding to respectively ACK0, ACK1 ... the ack channel of mark.
Then, the pairing ack channel of PDCCH of each descending carrier is the ack channel of CCE correspondence specific in this PDCCH in N descending carrier.Particularly, on the carrier wave i, the pairing ack channel of being made up of n CCE of PDCCH is offset (i, n) ack channel of individual CCE correspondence in this PDCCH.Wherein, i is a carrier identification, and n represents to form the number of the CCE of PDCCH, i.e. the polymerization level of descending carrier, and (a is an integer to offset for i, n)=(i-a) mod n.Wherein, when carrier identification i was a, the carrier wave that is identified adopted the existing mapping ruler of LTE system to determine ack channel.
As shown in Figure 3, when terminal can receive 2 descending carriers, carrier wave 0 was the LTE carrier wave, and the another one carrier wave is a carrier wave 1, and the PDCCH of each descending carrier is made up of 2 CCE,
For carrier wave 0,
offset(i，n)＝offset(0，2)＝0mod?2＝0
Then carrier wave 0 (LTE carrier wave) is the 0th CCE in this PDCCH, the i.e. ack channel of CCE0 correspondence, i.e. ACK0 by the pairing ack channel of PDCCH that CCE0 and CCE1 form;
For carrier wave 1, and offset (i, n)=offset (1,2)=1mod 2=1
Then carrier wave 1 is the 1st CCE in this PDCCH, the i.e. ack channel of CCE1 correspondence, i.e. ACK1 by the pairing ack channel of PDCCH that CCE0 and CCE1 form.
As shown in Figure 4, when terminal can receive 4 descending carriers, carrier wave 0 was the LTE carrier wave, and remaining 3 carrier wave is respectively carrier wave 1, carrier wave 2 and carrier wave 3, and the PDCCH of each descending carrier is made up of 4 CCE,
For carrier wave 0, and offset (i, n)=offset (0,4)=0mod 4=0
Then carrier wave 0 (LTE carrier wave) is the 0th CCE in this PDCCH, the i.e. ack channel of CCE0 correspondence, i.e. ACK0 by the pairing ack channel of PDCCH that CCE0, CCE1, CCE2 and CCE3 form;
For carrier wave 1, and offset (i, n)=offset (1,4)=1mod 4=1
Then carrier wave 1 is the 1st CCE in this PDCCH, the i.e. ack channel of CCE1 correspondence, i.e. ACK1 by the pairing ack channel of PDCCH that CCE0, CCE1, CCE2 and CCE3 form;
For carrier wave 2, and offset (i, n)=offset (2,4)=2mod 4=2
Then carrier wave 2 is the 2nd CCE in this PDCCH, the i.e. ack channel of CCE2 correspondence, i.e. ACK2 by the pairing ack channel of PDCCH that CCE0, CCE1, CCE2 and CCE3 form;
For carrier wave 3, and offset (i, n)=offset (3,4)=3mod 4=3
Then carrier wave 3 is the 3rd CCE in this PDCCH, the i.e. ack channel of CCE3 correspondence, i.e. ACK3 by the pairing ack channel of PDCCH that CCE0, CCE1, CCE2 and CCE3 form.
The mapping ruler of control/Traffic Channel and ack channel is that the user is specific in the embodiment of the invention, and particularly, carrier identification i is different to different user terminals.For example, the physical control channel that with the control channel is descending carrier is an example, first user terminal receives the data of a descending N carrier wave, but only launch the data of a up carrier wave, then the carrier identification with the descending carrier of a unique up-link carrier correspondence is a1, promptly the mapping ruler of control/Traffic Channel and ack channel adopts the existing mapping ruler of LTE system, offset (a1, n)=(a1-a1) mod n=0.And other carrier identification is not the carrier wave of a1, then can adopt the mapping ruler different with the LTE system, thereby other carrier identification can not used the obsolete ack channel of control/Traffic Channel of LTE carrier wave for the a1 carrier wave.If second user terminal, use a plurality of descending carriers identical with first user terminal, but be to use a up-link carrier different with first user terminal, then significantly, for second user terminal, carrier identification is that the descending carrier of a2 is the descending carrier of the up-link carrier correspondence of second user terminal use, be that carrier identification is that the mapping ruler of control/Traffic Channel and ack channel adopts the existing mapping ruler of LTE system on the descending carrier of a2, offset (a2, n)=(a2-a2) mod n=0.Wherein, the up-link carrier difference that above-mentioned two users' terminal is used is so a1 is different with a2.In sum, the carrier identification of descending carrier is different in the embodiment of the invention, and the rule specific according to the user identifies.Because the ability difference of user terminal, perhaps according to the demand of business, for different user terminals, the number of the carrier wave that uses also may be different with the concrete carrier wave that uses, therefore the mapping ruler of control/Traffic Channel and ack channel is on different carrier waves, also may be according to the difference of user terminal and difference.Such benefit is to have guaranteed that the control/Traffic Channel of LTE carrier wave and the mapping relations of ack channel do not change, the ack channel that other descending carrier can use the LTE carrier wave to discharge, thus improved the ack channel efficiency of resource.
In the another embodiment of the present invention,, set different side-play amounts, determine the CCE of each descending carrier and the corresponding relation of ACK according to this side-play amount at first at different descending carriers.Then, the ack channel of the PDCCH correspondence of each descending carrier, the ack channel of the CCE correspondence of index minimum in the CCE that comprises for the PDCCH set.
As shown in Figure 5, when terminal can receive 2 descending carriers, for carrier wave 0, can set side-play amount was 0, can determine that then the corresponding relation of CCE and ACK is: CCE0, and CCE1 ... corresponding to respectively ACK0, ACK1 ... the ack channel of mark;
For carrier wave 1, can set side-play amount is 1, can determine that then the corresponding relation of CCE and ACK is: CCE0, and CCE1 ... corresponding to respectively ACK1, ACK2 ... the ack channel of mark.
Then the pairing ack channel of being made up of CCE0 and CCE1 of PDCCH of carrier wave 0 is the ack channel of CCE0 correspondence, i.e. ACK0; The pairing ack channel of being made up of CCE0 and CCE1 of PDCCH of carrier wave 1 equally also is the ack channel of CCE0 correspondence, and for carrier wave 1, the ack channel of CCE0 correspondence is ACK1.
Carrier wave 0 is the ack channel of CCE2 correspondence, i.e. ACK2 by the pairing ack channel of PDCCH that CCE2 and CCE3 form; Carrier wave 1 equally also is the ack channel of CCE2 correspondence by the pairing ack channel of PDCCH that CCE2 and CCE3 form, for carrier wave 1, the ack channel of CCE2 correspondence is ACK3, determines that for other PDCCH the method for ack channel is similar with it, does not repeat them here.
The embodiment of the invention provides a kind of mapping method of channel, mapping relations by PDCCH and ack channel in the setting communication system, remedied the corresponding identical ack channel of PDCCH of a plurality of descending carriers in the prior art, can produce the defective of conflict, and can make full use of the ACK resource, improved the service efficiency of ACK resource.
As shown in Figure 6, the structure chart for the mapping device of a kind of channel of the embodiment of the invention comprises:
First determination module 61 is used for determining the ack channel of this Physical Resource Block correspondence according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel;
Second determination module 62 is used for the ack channel determined according to the specific mapping ruler of user and first determination module 61, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves.
Wherein, in one implementation, as shown in Figure 7, second determination module 62 can comprise:
Resource Block is selected submodule 621, is used for selecting Physical Resource Block according to the specific mapping ruler of user at the Physical Resource Block that control/Traffic Channel comprises at least two selected different Physical Resource Block of carrier waves;
Channel is determined submodule 622, and the ack channel that is used for determining the control/Traffic Channel correspondence of at least two arbitrary carrier waves of carrier wave is the ack channel of the selected Physical Resource Block correspondence of the selected submodule of Resource Block 621.
In another kind of implementation, the ack channel of above-mentioned Physical Resource Block correspondence can also be the ack channel that label identified that obtains after the default side-play amount of the label skew of this Physical Resource Block, this side-play amount is different numerical value at different carrier waves, at this moment the ack channel of the Physical Resource Block correspondence of the Physical Resource Block label minimum that comprises for this control/Traffic Channel of second determination module 62 ack channel that specifically can be used for determining this control/Traffic Channel correspondence.
The mapping device of above-mentioned channel, mapping relations by control/Traffic Channel and ack channel in the setting communication system, determine the ack channel of control/Traffic Channel correspondence, remedied the corresponding identical ack channel of the control of a plurality of carrier waves in the prior art/Traffic Channel, can produce the defective of conflict, can make full use of the ACK resource, improve the service efficiency of ACK resource.
As shown in Figure 8, the flow chart for the launching technique of a kind of ACK/NACK of the embodiment of the invention comprises:
Step S801 according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel, determines the ack channel of this Physical Resource Block correspondence.
Step S802 according to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and control/Traffic Channel, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves.
Step S803 launches ACK/NACK on the ack channel of determining.
As shown in Figure 9, the structure chart for the emitter of a kind of ACK/NACK of the embodiment of the invention comprises:
The first channel determination module 91 is used for determining the ack channel of this Physical Resource Block correspondence according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel;
Second channel determination module 92 is used for the ack channel determined according to the specific mapping ruler of user and the first channel determination module 91, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves;
Transmitter module 93 is used for launching ACK/NACK on the ack channel that second channel determination module 92 is determined.
As shown in figure 10, the flow chart for the method for reseptance of a kind of ACK/NACK of the embodiment of the invention comprises:
Step S1001 according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel, determines the ack channel of this Physical Resource Block correspondence.
Step S1002 is according to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and this control/Traffic Channel, the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave in definite at least two carrier waves.
Step S1003 receives ACK/NACK on the ack channel of determining.
As shown in figure 11, the structure chart for the receiving system of a kind of ACK/NACK of the embodiment of the invention comprises:
The first channel determination module 111 is used for determining the ack channel of this Physical Resource Block correspondence according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel;
Second channel determination module 112 is used for the ack channel determined according to the specific mapping ruler of user and the first channel determination module 111, determines the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave at least two carrier waves;
Receiver module 113 is used for receiving ACK/NACK on the ack channel that second channel determination module 112 is determined.
As shown in figure 12, the structure chart for a kind of communication system of the embodiment of the invention comprises:
The mapping device 121 of channel, be used for according to the Physical Resource Block of control/Traffic Channel and the corresponding relation of ack channel, determine the ack channel of Physical Resource Block correspondence, and according to the ack channel of the Physical Resource Block correspondence of the specific mapping ruler of user and this control/Traffic Channel, the ack channel of the control/Traffic Channel correspondence of arbitrary carrier wave in definite at least two carrier waves;
The emitter 122 of ACK is used for launching ACK/NACK on the ack channel that the mapping device 121 of channel is determined;
The receiving system 123 of ACK is used for receiving ACK/NACK on the ack channel that the mapping device 121 of channel is determined.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (14)

1、一种信道的映射方法，其特征在于，包括：1. A channel mapping method, characterized in that, comprising: 根据控制/业务信道的物理资源块和ACK信道的对应关系，确定所述物理资源块对应的ACK信道；According to the corresponding relationship between the physical resource block of the control/traffic channel and the ACK channel, determine the ACK channel corresponding to the physical resource block; 根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道。Determine the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers according to a user-specific mapping rule and the ACK channel corresponding to the physical resource block of the control/traffic channel. 2、如权利要求1所述的方法，其特征在于，所述根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道具体包括：2. The method according to claim 1, wherein, according to the user-specific mapping rule and the ACK channel corresponding to the physical resource block of the control/traffic channel, any carrier in the at least two carriers is determined The ACK channel corresponding to the control/traffic channel specifically includes: 根据所述用户特定的映射规则在所述控制/业务信道包含的物理资源块中选定物理资源块，所述至少两个载波选定不同的物理资源块；selecting physical resource blocks among the physical resource blocks included in the control/traffic channel according to the user-specific mapping rule, and selecting different physical resource blocks for the at least two carriers; 确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道为所述选定的物理资源块对应的ACK信道。Determine the ACK channel corresponding to the control/traffic channel of any carrier in the at least two carriers as the ACK channel corresponding to the selected physical resource block. 3、如权利要求2所述的方法，其特征在于，所述根据用户特定的映射规则在所述控制/业务信道包含的物理资源块中选定物理资源块具体包括：3. The method according to claim 2, wherein the selecting a physical resource block from the physical resource blocks contained in the control/traffic channel according to a user-specific mapping rule specifically comprises: 根据所述载波的载波标识和所述载波的控制/业务信道包含的物理资源块数，在所述控制/业务信道包含的物理资源块中选定物理资源块。Selecting a physical resource block from the physical resource blocks included in the control/traffic channel according to the carrier identifier of the carrier and the number of physical resource blocks included in the control/traffic channel of the carrier. 4、如权利要求3所述的方法，其特征在于，当所述载波的载波标识为i，所述载波的控制/业务信道包含的物理资源块数为n时，在所述控制/业务信道包含的物理资源块中选定的物理资源块的标号为：4. The method according to claim 3, wherein when the carrier identifier of the carrier is i and the number of physical resource blocks contained in the control/traffic channel of the carrier is n, the control/traffic channel The labels of selected physical resource blocks among the included physical resource blocks are: offset(i，n)＝(i-a)mod noffset(i,n)=(i-a)mod n 其中，a为采用LTE系统已有的映射规则的载波的载波标识。Wherein, a is the carrier identifier of the carrier adopting the existing mapping rule of the LTE system. 5、如权利要求1所述的方法，其特征在于，所述物理资源块和ACK信道的对应关系具体为：5. The method according to claim 1, wherein the corresponding relationship between the physical resource block and the ACK channel is specifically: 所述物理资源块对应的ACK信道为所述物理资源块的标号偏移预设的偏移量后获得的标号所标识的ACK信道，所述偏移量针对所述至少两个载波中的不同载波为不同的数值。The ACK channel corresponding to the physical resource block is the ACK channel identified by the label obtained after the label of the physical resource block is offset by a preset offset, and the offset is for the difference between the at least two carriers. Carrier is a different value. 6、如权利要求5所述的方法，其特征在于，所述根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道具体包括：6. The method according to claim 5, wherein, according to the user-specific mapping rule and the ACK channel corresponding to the physical resource block of the control/traffic channel, any carrier in the at least two carriers is determined The ACK channel corresponding to the control/traffic channel specifically includes: 确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道为所述至少两个载波中任一载波的控制/业务信道包含的物理资源块中标号最小的物理资源块对应的ACK信道。Determining that the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers corresponds to the physical resource block with the smallest number among the physical resource blocks included in the control/traffic channel of any one of the at least two carriers ACK channel. 7、一种信道的映射装置，其特征在于，包括：7. A channel mapping device, characterized in that it comprises: 第一确定模块，用于根据控制/业务信道的物理资源块和确认ACK信道的对应关系，确定所述物理资源块对应的ACK信道；The first determining module is configured to determine the ACK channel corresponding to the physical resource block according to the correspondence between the physical resource block of the control/traffic channel and the acknowledgment ACK channel; 第二确定模块，用于根据用户特定的映射规则和所述第一确定模块确定的ACK信道，确定至少两个载波中任一载波的控制/业务信道对应的ACK信道。The second determination module is configured to determine the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers according to the user-specific mapping rule and the ACK channel determined by the first determination module. 8、如权利要求7所述的装置，其特征在于，所述第二确定模块包括：8. The device according to claim 7, wherein the second determining module comprises: 资源块选定子模块，用于根据所述用户特定的映射规则在所述控制/业务信道包含的物理资源块中选定物理资源块，所述至少两个载波选定不同的物理资源块；The resource block selection submodule is configured to select a physical resource block among the physical resource blocks included in the control/traffic channel according to the user-specific mapping rule, and select different physical resource blocks for the at least two carriers; 信道确定子模块，用于确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道为所述资源块选定子模块选定的物理资源块对应的ACK信道。The channel determination submodule is configured to determine that the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers is the ACK channel corresponding to the physical resource block selected by the resource block selection submodule. 9、如权利要求7所述的装置，其特征在于，所述物理资源块对应的ACK信道为所述物理资源块的标号偏移预设的偏移量后获得的标号所标识的ACK信道；9. The device according to claim 7, wherein the ACK channel corresponding to the physical resource block is the ACK channel identified by the label obtained after the label of the physical resource block is offset by a preset offset; 所述第二确定模块具体用于确定所述至少两个载波中任一载波的控制/业务信道对应的ACK信道为所述控制/业务信道包含的物理资源块中标号最小的物理资源块对应的ACK信道。The second determination module is specifically configured to determine that the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers is the one corresponding to the physical resource block with the smallest number among the physical resource blocks included in the control/traffic channel ACK channel. 10、一种ACK/NACK的发射方法，其特征在于，包括：10. A method for transmitting ACK/NACK, comprising: 根据控制/业务信道的物理资源块和确认ACK信道的对应关系，确定所述物理资源块对应的ACK信道；Determine the ACK channel corresponding to the physical resource block according to the corresponding relationship between the physical resource block of the control/traffic channel and the acknowledgment ACK channel; 根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定至少两个载波中任一载波的控制/业务信道对应的ACK信道；Determine the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers according to a user-specific mapping rule and the ACK channel corresponding to the physical resource block of the control/traffic channel; 在所述确定的ACK信道上发射ACK/否认NACK。An ACK/NACK is transmitted on said determined ACK channel. 11、一种ACK/NACK的发射装置，其特征在于，包括：11. An ACK/NACK transmitting device, comprising: 第一信道确定模块，用于根据控制/业务信道的物理资源块和确认ACK信道的对应关系，确定所述物理资源块对应的ACK信道；The first channel determination module is configured to determine the ACK channel corresponding to the physical resource block according to the correspondence between the physical resource block of the control/traffic channel and the acknowledgment ACK channel; 第二信道确定模块，用于根据用户特定的映射规则和所述第一信道确定模块确定的ACK信道，确定至少两个载波中任一载波的控制/业务信道对应的ACK信道；The second channel determination module is configured to determine the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers according to the user-specific mapping rule and the ACK channel determined by the first channel determination module; 发射模块，用于在所述第二信道确定模块确定的ACK信道上发射ACK/否认NACK。A transmitting module, configured to transmit ACK/NACK on the ACK channel determined by the second channel determining module. 12、一种ACK/NACK的接收方法，其特征在于，包括：12. A method for receiving ACK/NACK, comprising: 根据控制/业务信道的物理资源块和确认ACK信道的对应关系，确定所述物理资源块对应的ACK信道；Determine the ACK channel corresponding to the physical resource block according to the corresponding relationship between the physical resource block of the control/traffic channel and the acknowledgment ACK channel; 根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定至少两个载波中任一载波的控制/业务信道对应的ACK信道；Determine the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers according to a user-specific mapping rule and the ACK channel corresponding to the physical resource block of the control/traffic channel; 在所述确定的ACK信道上接收ACK/否认NACK。An ACK/NACK is received on said determined ACK channel. 13、一种ACK/NACK的接收装置，其特征在于，包括：13. An ACK/NACK receiving device, comprising: 第一信道确定模块，用于根据控制/业务信道的物理资源块和确认ACK信道的对应关系，确定所述物理资源块对应的ACK信道；The first channel determination module is configured to determine the ACK channel corresponding to the physical resource block according to the correspondence between the physical resource block of the control/traffic channel and the acknowledgment ACK channel; 第二信道确定模块，用于根据用户特定的映射规则和所述第一信道确定模块确定的ACK信道，确定至少两个载波中任一载波的控制/业务信道对应的ACK信道；The second channel determination module is configured to determine the ACK channel corresponding to the control/traffic channel of any one of the at least two carriers according to the user-specific mapping rule and the ACK channel determined by the first channel determination module; 接收模块，用于在所述第二信道确定模块确定的ACK信道上接收ACK/NACK。A receiving module, configured to receive ACK/NACK on the ACK channel determined by the second channel determining module. 14、一种通信系统，其特征在于，包括：14. A communication system, characterized by comprising: 信道的映射装置，用于根据控制/业务信道的物理资源块和确认ACK信道的对应关系，确定所述物理资源块对应的ACK信道，并根据用户特定的映射规则和所述控制/业务信道的物理资源块对应的ACK信道，确定至少两个载波中任一载波的控制/业务信道对应的ACK信道；The channel mapping device is used to determine the ACK channel corresponding to the physical resource block according to the corresponding relationship between the physical resource block of the control/traffic channel and the acknowledgment ACK channel, and according to the user-specific mapping rule and the ACK channel of the control/traffic channel The ACK channel corresponding to the physical resource block determines the ACK channel corresponding to the control/traffic channel of any carrier in at least two carriers; ACK的发射装置，用于在所述信道的映射装置确定的ACK信道上发射ACK/NACK；ACK transmitting means for transmitting ACK/NACK on the ACK channel determined by the channel mapping means; ACK的接收装置，用于在所述信道的映射装置确定的ACK信道上接收ACK/NACK。The ACK receiving device is used for receiving ACK/NACK on the ACK channel determined by the channel mapping device.
CN200810211344A 2008-09-19 2008-09-19 Mapping method of information channel, ACK launch and receiving method, device and system Pending CN101677459A (en)

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