CN104104482B - The method for configuring the physical mixed automatic re-transmission indicating channel of enhancing - Google Patents
The method for configuring the physical mixed automatic re-transmission indicating channel of enhancing Download PDFInfo
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Abstract
The present invention provides the method for the physical mixed automatic re-transmission indicating channel (EPHICH) of configuration enhancing, wherein, EPHICH is multiplexed among PDSCH.Preferably, (I) EPHICH is multiplexed to the Physical Resource Block centering of the public search space (CSS) of the Physical Downlink Control Channel (EPDCCH) of enhancing, (II) be multiplexed to be used for transmission the Physical Resource Block centering of downlink data or (III) be multiplexed to EPDCCH the specific search space of user equipment (USS) Physical Resource Block centering.Preferably, base station and user equipment are according to the resource location of uplink, based on given algorithm, calculate the number of the mixed automatic retransfer instruction in the resource collection of EPHICH, and mixed automatic retransfer instruction is sent or receives on the corresponding resource location of the mixed automatic retransfer instruction of the number, it eliminates using individual indicator to indicate the uplink.
Description
Technical field
The present invention relates to the configurations of the channel in wireless communication more particularly to wireless communication.
Background technology
In order to carry out mixed automatic retransfer feedback (HARQ) to uplink, there are several solutions in the industry.Wherein one
Kind is the carrying New Data Flag (NDI) in Downlink Control Information (DCI), and another kind is to use a special physical mixed certainly
Dynamic retransmission indicating chanel (PHICH) specially transmits HARQ ACK/NACK.Compared with the former, the latter efficiently and can more protect
Demonstrate,prove the feedback to the robust of uplink.
In the existing version 11 of LTE-A, in order to supplement Physical Downlink Control Channel (PDCCH), it is proposed that one
The Physical Downlink Control Channel (EPDCCH) of kind enhancing.The EPDCCH does not simultaneously have dedicated transmission resource, but is multiplexed in
It is sent among Physical Downlink Shared Channel (PDSCH).The EPDCCH is capable of the object of scheduling user's set (UE) actual use
Manage Uplink Shared Channel.In version 11, corresponding to the uplink in by the Physical Uplink Shared Channel scheduled in EPDCCH
ACK/NACK feedback need sent among traditional PHICH.
In LTE-A versions 12 in currently standardisation process, it is proposed that new wave-carring type (NCT) this concept.
NCT base stations (eNB)/cell realizes high data throughput using new wave-carring type.In order to realize this purpose, such as CRS
(cell specific reference signal), PHICH (physical mixed automatic re-transmission indicating channel), PCFICH (physical control format instruction letters
Road) etc. channels all removed at least partly from the new wave-carring type, to improve the efficiency of spectrum utilization.It will according to existing standard
It asks, the corresponding HARQ ACK/NACK of PUSCH are sent with dispatching the control information of the PUSCH on same carrier wave.But for NCT
For, and not comprising PHICH channels, this can cause HARQ feedback not have resource can use：
1) in the case of non-cross-carrier scheduling, the PUSCH on NCT is the PUSCH as scheduled in the EPDCCH of this NCT
Corresponding HARQ ACK/NACK feedbacks will be unable to send on the NCT；
If 2) PUSCH on NCT is as scheduled in the PDCCH on associated conventional carrier (i.e. cross-carrier scheduling), and
Since the PHICH of conventional carrier also needs to bear the HARQ ACK/NACK feedbacks on the conventional carrier, thus, if will be to NCT's
The HARQ ACK/NACK feedbacks of PUSCH, which are placed on the PHICH of conventional carrier, will cause PHICH resource insufficient, may cause punching
It is prominent.
The content of the invention
In view of the disadvantage mentioned above of the prior art, it is seen then that need a kind of skill for configuring physical mixed automatic re-transmission indicating channel
Art provides necessary resource for HARQ ACK/NACK configurations, ensures that sequential carries out HARQ procedure on request.Furthermore, it is understood that also
A kind of method that instruction HARQ ACK/NACK are the feedbacks carried out to which uplink is needed, in order to which user equipment is correct
Identify the ACK/NACK feedbacks corresponding to its uplink.
The inventive concept of the present invention is, physical mixed automatic re-transmission indicating channel is multiplexed in Physical Downlink Shared Channel
Among.
According to the first aspect of the invention, a kind of physical mixed autonomous retransmission for configuring enhancing in a base station is provided to refer to
Show the method for channel, include the following steps：I. the physical mixed autonomous retransmission is multiplexed among Physical Downlink Shared Channel to refer to
Show channel.
According to this aspect, the physical mixed automatic re-transmission indicating channel (EPHICH) of enhancing is located at Physical Downlink Shared Channel
(PDSCH) among.For NCT, it can be transmitted among the PDSCH without the NCT of PHICH to the PUSCH's on NCT
HARQ ACK/NACK are fed back, and have filled up the blank that existing NCT can not efficiently support autonomous retransmission to feed back.Also, the program
It can be suitable for conventional carrier：Additional hybrid automatic retransmission indication channel in the PDSCH of conventional carrier is provided, adds and is
The adaptability of system, wherein, which can be to the conventional carrier in itself and/or in scheduled NCT
PUSCH fed back.
In one preferred embodiment, the step i includes, and sets physics hybrid automatic retransmission indication channel
Group, the group include：
- first kind group, physical mixed automatic re-transmission indicating channel therein be multiplexed to Physical Downlink Shared Channel it
In, enhancing Physical Downlink Control Channel public search space one or more Physical Resource Block centerings, the plurality of object
Resource block is managed to being continuous or discrete.
In this embodiment, which is multiplexed among the public search space of EPDCCH, convenient for improving
EPHICH transmission robustness.
In another preferred embodiment, the group of physics hybrid automatic retransmission indication channel is set, which includes：
- Second Type group, physical mixed automatic re-transmission indicating channel therein be multiplexed to Physical Downlink Shared Channel it
In, one or more Physical Resource Block centerings for being used for transmission downlink data, the plurality of Physical Resource Block to be it is continuous or from
Scattered.
In this embodiment, which is multiplexed to be used for transmission the resource block pair of downlink data in PDSCH, carries
The high transmission capacity of EPHICH, convenient for providing HARQ feedback for multiple user equipmenies, reduces conflict.
In another preferred embodiment, the group of physics hybrid automatic retransmission indication channel is set, which includes：
- the three type group, physical mixed automatic re-transmission indicating channel therein be multiplexed to Physical Downlink Shared Channel it
In, enhancing Physical Downlink Control Channel the specific search space of user equipment one or more Physical Resource Block centerings,
The plurality of Physical Resource Block is to being continuous or discrete.
In this embodiment, which is multiplexed among the specific search space of user equipment of EPDCCH, enhancing
EPHICH transmission flexibilities reduce ACK/NACK feedback resources expenses.
It is further preferred that set one or more groups in the step i for the user's equipment, and while setting multiple groups, should
Multiple groups can belong to identical or different type.
In the preferred embodiment, it can be that user equipment sets different type groups, improve EPHICH configurations
Diversity.
It is further preferred that this method further includes following steps：
Ii. the resource of the physical mixed automatic re-transmission indicating channel is informed into user equipment, wherein, the step ii will
Following information informs the user's equipment：
- be configured to the user's equipment physical mixed automatic re-transmission indicating channel group quantity；
The quantity of-each group Physical Resource Block pair included and position；
The resource location where Physical Resource Block centering, physical mixed automatic re-transmission indicating channel in-each group.
In this embodiment, the group of EPHICH can be configured flexibly by base station to user equipment, have very strong spirit
Activity.In one embodiment, the step ii uses high-level signaling by the physical mixed automatic re-transmission indicating channel
Resource informs the user's equipment, and the high-level signaling includes RRC signaling or the signaling of Physical Broadcast Channel.
Alternatively, the resource of the physical mixed automatic re-transmission indicating channel has been stored on the base station and the user's equipment.
In this embodiment, additional signaling is not required to inform the resource-niche where the group of user equipment EPHICH
It puts, saves signaling consumption.
In one embodiment, the multiplexing is using following any mode：Resource is punched；Rate-matched.
This embodiment offers EPHICH is multiplexed two kinds of specific multiplexing methods in PDSCH.Wherein, using money
The advantages of source is punched is the transparency for user, reduces signaling consumption.And it is using the advantages of rate-matched higher
The robustness of transmission.
In one embodiment, it is multiplexed when described using rate-matched mode, and includes first kind group when described group
When, the step ii is obtained before the user equipment is initially accessed the base station.
In this embodiment, base station should before user equipment access by the resource notification of EPHICH to user equipment,
It is carried in itself so that the EPHICH being multiplexed in EPDCCH will not be mistakenly considered EPDCCH by user equipment when being initially accessed
System information, so as to allow normally receiving for system information, and access can be normally carried out.
After EPHICH is configured with, the present invention is still further provided carries out HARQ feedback based on the EPHICH configured
Process.In one embodiment, this method further includes following steps：
Iii. according to the scheduling information of the uplink to the user's equipment, generation mixed automatic retransfer instruction；
Iv. in the resource of the physical mixed automatic re-transmission indicating channel configured by the user's equipment, this is mixed
It closes autonomous retransmission instruction and is sent to the user's equipment.
After EPHICH is configured with, this embodiment offers the skills that HARQ feedback is carried out based on the EPHICH configured
Art scheme realizes HARQ feedback process.
Preferably, in the step iv, indicated using diversity antenna technology to send the mixed automatic retransfer, the antenna
Diversity technique includes any one of following：
- precoding cycles；
- Space-Time Block Coding.
The preferred embodiment obtains diversity gain, improves the receptivity that user equipment receives HARQ feedback.
Preferably, the step iv includes the following steps：
Iv-1. according to the resource location of the uplink, based on given algorithm, calculate and indicate phase with mixed automatic retransfer
Associated number；
Iv-2. it is identified, send on the resource location corresponding to the associated number of mixed automatic retransfer instruction
The mixed automatic retransfer indicates.
Correspondingly, in a user device, also according to the resource location of the uplink, based on given algorithm, institute is calculated
State the number that the instruction of corresponding mixed automatic retransfer is received in the resource collection of physical mixed automatic re-transmission indicating channel, and with
Mixed automatic retransfer instruction is received on resource location corresponding to the number of identified mixed automatic retransfer instruction.
This embodiment offers a kind of technical solutions that implication mark is carried out to HARQ feedback.Base station and user equipment
All using given algorithm, the number of the HARQ feedback in the resource location and EPHICH of uplink is associated.As long as really
The resource location of uplink is determined, base station is known that the number of the HARQ feedback in EPHICH, and HARQ numbers are corresponding to phase
The resource location answered, user equipment just send feedback on the resource location, and user equipment is it is also known that go the HARQ of the number anti-
It is received on the corresponding EPHICH resource locations of feedback.The embodiment need not clear identify the uplink in HARQ feedback
Transmission reduces the expense of HARQ feedback.
It is further preferred that the number is based on following any numbering：
A. all mixing in the resource collection of the physical mixed automatic re-transmission indicating channel of all user equipmenies from
Dynamic retransmit is numbered as a whole；
B. the mixed automatic retransfer in the resource collection of the physical mixed automatic re-transmission indicating channel of the user's equipment
Instruction is numbered as a whole；
C. in the resource collection of the physical mixed automatic re-transmission indicating channel of the same type group of the user's equipment
Mixed automatic retransfer instruction is numbered as a whole.
This embodiment offers several different numberings.For b and c modes, sent out with other users equipment
The probability of raw conflict is relatively low.
It is further preferred that in the step iv-2, before mixed automatic retransfer instruction is sent, first using bias
To adjust and the associated number of mixed automatic retransfer instruction；
The step v further comprises before the step iv-2：
The bias is sent to the user's equipment.
In real network, may calculate multiple user equipmenies mixed automatic retransfer instruction can just use it is same
Resource location is sent.In order to avoid collision, in this embodiment, it is which part user device configuration bias, comes
The HARQ feedback of the user's equipment is adjusted to other number, so as to send the automatic weight of mixing on different resource locations
Pass instruction.
Correspondingly, in a user device, the second aspect of the invention provides a kind of configuration enhancing in a user device
Physical mixed automatic re-transmission indicating channel method, include the following steps：
I. the physical mixed automatic re-transmission indicating channel is multiplexed among Physical Downlink Shared Channel.
Various aspects of the invention will be become apparent from by the explanation of embodiment in detail below.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent：
Fig. 1 be according to embodiment of the present invention, three kinds EPDCCH is multiplexed multiplex modes among PDSCH
Schematic diagram；
Fig. 2 is method flow diagram according to embodiment of the present invention.
In the figure through different diagrams, same or similar reference numeral represents identical or corresponding component or spy
Sign.
Specific embodiment
The present invention proposes the physical mixed automatic re-transmission indicating channel for configuring enhancing in a base station and in a user device
Method, wherein, the physical mixed automatic re-transmission indicating channel is multiplexed among Physical Downlink Shared Channel (PDSCH)
(PHICH).The PHICH being multiplexed in PDSCH is referred to alternatively as EPHICH, so as to be differentiated with common PHICH channels.
In LTE-A versions 11, except being used to send the Physical Resource Block pair of downlink data (DL-SCH channels) in PDSCH
Outside (PRB pair), the Physical Resource Block pair of the Physical Downlink Control Channel (EPDCCH) of enhancing is further included.Therefore, according to this
The above inventive concept of invention, physical mixed automatic re-transmission indicating channel can be multiplexed in PDSCH except being used under transmission
The Physical Resource Block centering of row data, can also be multiplexed in the Physical Resource Block of EPDCCH.Description these types separately below
Embodiment, wherein, the EPHICH of different multiplex modes is known as a certain type group.
- first kind group, wherein, the physical mixed automatic re-transmission indicating channel EPHICH of enhancing is multiplexed to physical down
One or more physical resources of the public search space (CSS) of among shared channel, enhancing Physical Downlink Control Channel
Block centering.As shown in I in Fig. 1, EPHICH is multiplexed in the PRB#a and #d where EPDCCH CSS, and two physics
Resource block is to being discrete.It is appreciated that the two Physical Resource Block are to that can also be continuous.It is multiplexed in EHICH more
In the case of a PRB, distributed transmission should be supported.In the embodiment of a variation, EPHICH can be only multiplexed to
On one of PRB#a and #d where EPDCCH；Or it can be multiplexed on three or more PRB.
- Second Type group, wherein, the physical mixed automatic re-transmission indicating channel of enhancing is multiplexed to physical down and shares letter
One or more Physical Resource Block centerings among road, being used for transmission downlink data.As shown in II in Fig. 1, EPHICH is answered
For in PRB#b, which to be used for transmission DL-SCH channels originally.In Fig. 1, EPHICH is multiplexed to a PRB#b.
It is used for transmission it is appreciated that EPHICH can also be multiplexed to two or more on the PRB of DL-SCH channels.
- the three type group, wherein, the physical mixed automatic re-transmission indicating channel EPHICH of enhancing is multiplexed to physical down
The one or more of the specific search space of user equipment (USS) of among shared channel, enhancing Physical Downlink Control Channel
Physical Resource Block centering.As shown in III in Fig. 1, EPHICH is multiplexed in the PRB#c and #e where EPDCCH USS, and
Two Physical Resource Block are to being discrete.It is appreciated that the two Physical Resource Block are to that can also be continuous.In EHICH
In the case of being multiplexed to multiple PRB, distributed transmission should be supported.In the embodiment of a variation, EPHICH can be only
On one of PRB#c and #e for being multiplexed to where EPDCCH USS or it can be used on three or more PRB.
It is worth noting that, although first kind group and the 3rd type group are all by EPHICH multiplexings in EPDCCH, existing
In standard, user equipment is to be demodulated processing respectively for the CSS and USS of EPDCCH, and therefore, EPHICH is individually reflected
CSS or USS is mapped to, reception of the user equipment to EPHICH can be convenient for.
Base station can be one or more groups that the user's equipment sets EPHICH.And when setting multiple groups, the plurality of group
Identical or different above type can be belonged to.For example, user equipment is configured for a first kind group and one second
Type group.Also, when setting multiple groups, the quantity of PRB can be identical or different possessed by each group, for example, such as Fig. 1 institutes
Show, the first kind group tool that user equipment is configured is there are two PRB, and only there are one PRB for Second Type group.Furthermore at one
When type group includes multiple PRB, for each PRB, EPHICH can be mapped to the PRB with identical or different mapping mode
In each RE on.For example, in Fig. 1, the EPHICH of first kind group is phase in PRB#a and the mapping mode in PRB#d
With, the EPHICH of the 3rd type group is different in PRB#c and the mapping mode in PRB#e.It is worth noting that, in order to
Ensure PDSCH compatibilities, the RE that EPHICH is be mapped to should be not take up reference signal (DMRS or CSI-RS) in PDSCH,
The transmission position of PBCH or synchronizing signal (primary synchronization signal PSS and secondary synchronization signal SSS).
In the occupied PRB of EPHICH, it can occupy all available RE in entire PRB, such as II types institute in Fig. 1
Show；The part RE in the PRB can also be occupied, as shown in the I in Fig. 1 and Group III type.
In one case, the resource of the physical mixed automatic re-transmission indicating channel of the enhancing configured by user equipment,
RE positions in PRB number, position and PRB that i.e. it is included, have been stored on the base station and the user's equipment.
In-a alternative embodiment, in order to improve flexibility, the physical mixed automatic re-transmission indicating channel of enhancing
Resource can in real time be configured by base station.In step S20, base station is based on aforementioned rule, determines the mapping mode of EPHICH.
In step S22, the resource of EPHICH is informed that user sets by base station by high-level signaling, such as PBCH signalings and/or RRC signaling
It is standby.Wherein, following information is informed the user's equipment by base station：
- be configured to the user's equipment physical mixed automatic re-transmission indicating channel group quantity；
The quantity of-each group Physical Resource Block pair included and position；
The resource location where Physical Resource Block centering, physical mixed automatic re-transmission indicating channel in-each group.
Base station can be completely independent or be partly overlapped by the PRB pair where EPHICH that each user equipment configures or
It is even completely overlapped.In the PRB pair of overlapping, the RE that the EPHICH of each user equipment is be mapped to can be completely independent or
It partly overlaps or even completely overlapped.
It, can when in the PRB being used for transmission where the PRB or EPDCCH of DL-SCH being multiplexed into EPHICH in PDSCH
It is multiplexed in a manner of using resource punching (puncturing) or in the way of rate-matched (rate matching).This two
Kind multiplex mode is well known to the skilled artisan in the art in itself, therefore is not being repeated.It is worth noting that, when multiplexing is to adopt
With rate-matched mode, and to user device configuration during first kind group, since EPHICH is multiplexed in the public of EPDCCH
In search space, in order to avoid EPHICH is mistakenly considered in the public search space in EPDCCH by user equipment in access base station
System information, so before the base station is initially accessed, should to obtain common search of the EPHICH in EPDCCH empty for user equipment
Between physical resource resource impact form in the block, EPHICH and the system information in EPDCCH are differentiated.
Correspondingly, in step s 30, user equipment receives the resource (PRB that the EPHICH indicated by base station is be mapped to
And RE).Also, in step s 32, user equipment sets these resources.
The EPHICH, which can be based on, after EPHICH is configured with, between base station and user equipment carries out HARQ feedback, under
The embodiment in face will be described in detail the process of HARQ feedback.
Uplink is carried out in the UL-SCH that user equipment is carried in some ascending resource position (RE), such as is sent
Row data.Base station receives the uplink on the RE, judges whether the uplink information receives success after demodulating and decoding, will sentence
Disconnected scheduling information of the result as the uplink.
Then, in step s 24, base station is according to the scheduling information of the uplink to the user's equipment, and generation mixing is certainly
Dynamic retransmit for example, when receiving successfully, generates ACK, when receiving mistake, generates NACK.
Afterwards, in step S260 and S262, base station weighs automatically in the physical mixed configured by the user's equipment
In the resource for passing instruction channel, mixed automatic retransfer instruction is sent to the user's equipment.
Preferably, in order to improve reception gain, base station is indicated using diversity antenna technology to send the mixed automatic retransfer,
The diversity antenna technology includes precoding Xun Huan (precoder cycling) or space-time/frequency block code (SFBC).These antenna point
Collection technology is known to the general technology of this field in itself, and the present invention repeats no more.
In order to save the expense of mixed automatic retransfer instruction, the transmitted RE of mixed automatic retransfer instruction and uplink institute
The ascending resource position of occupancy has one-to-one relation.It, can be automatic so after user equipment carries out the uplink
Ground calculates the RE positions where the HARQ feedback of the uplink, then just in the first-class HARQ feedbacks to be received of the RE；Correspondingly,
Base station can also send HARQ ACK/NACK on the RE.So so that mixed automatic retransfer instruction need not carry mark in itself
The information of uplink, but impliedly represent it is for which uplink using its resource is sent, save signaling
Expense.
In order to realize this purpose, base station and user equipment are all according to the resource location of uplink, based on given algorithm,
Calculate the number for the resource location that the corresponding mixed automatic retransfer instruction of the uplink is sent in the resource collection of EPHICH.It should
Number can be indicated corresponding specific based on the following mode that the HARQ ACK/NACK of EPHICH are numbered in certain
HARQ ACK/NACK：
A. all HARQ ACK/NACK in the PRB of the EPHICH of all user equipmenies are numbered as a whole；
B. the HARQ ACK/NACK in the PRB of the EPHICH of the user's equipment are numbered as a whole；
C. the HARQ ACK/NACK in the PRB of the EPHICH of the same type group of the user's equipment are compiled as a whole
Number.
In base station and user equipment, the HARQ ACK/NACK with given number are directly corresponded to as user equipment
(due to having carried out repeated encoding, so a HARQ ACK/NACK can be accounted on multiple RE in the PRB of the PEHICH configured
With multiple RE).
For being that all HARQ ACK/NACK of all EPHICH in whole system are integrally numbered with upper type a.
In this case, due to PRB that each user equipment only aware distribution is be mapped to its EPHICH, then base station needs
By the corresponding number notice of the EPHICH for distributing to it the HARQ ACK/NACK be mappeding to user equipment.
For with upper type b, all types of groups of EPHICH for being allocated to it be mapped to each by single user's equipment
HARQ ACK/NACK are numbered.A kind of exemplary order is the arrangement in PDSCH according to each HARQ ACK/NACK
Sequentially, for example, time-frequency location order.It is of course also possible to by other numberings, such as first according to certain rule by all types of groups
It is ranked up, then HARQ ACK/NACK is numbered again according to the order of type group.Specific sortord is not this hair
It is bright of interest.
For with upper type c, the EPHICH of the type group is be mapped to by single user's equipment respectively for all types of groups
HARQ ACK/NACK be numbered.A kind of exemplary order is the row in PDSCH according to each HARQ ACK/NACK
Row order, such as time-frequency location order.It is of course also possible to by other numberings, and specific sortord and non-invention
Of interest.In this case, base station needs to inform that user equipment needs to use using dynamic signaling, such as RRC signaling
Which type group.
According to above design, those of ordinary skill in the art can design and be suitable for the invention appropriate algorithm, this hair
It is bright the specific implementation of algorithm not to be repeated.
Based on upper type, as shown in Fig. 2, in step S340, resource of the user equipment according to where UL-SCH calculates
Go out the HARQ feedback number that EPHIcH is carried.
And in step S260, base station calculates EPHICH and is carried also according to the resource where the UL-SCH received
The number of HARQ ACK/NACK feedbacks simultaneously finds RE correspondingly.Then, in step S262, base station is sent on the RE
The HARQ feedback.
In step S342, user equipment is numbered according to the HARQ ACK/NACK calculated in step S340, at this
Receive the HARQ feedback on RE corresponding to the HARQ ACK/NACK of number, so as to know its UL-SCH uplink whether by
Base station is properly received.
Numerous user equipmenies have been administered in base station, are numerous particularly in cross-carrier scheduling, it is necessary in limited resource
User equipment EPHICH, therefore the HARQ that foregoing algorithm is calculated for the uplink of different user devices are provided
ACK/NACK numbers are possible to that in actual channel the same group of RE into same PRB pair can be corresponded to, and cause ACK/NACK
Conflict (collision).In order to solve the problems, such as this, the present invention proposes following technical solution：
For there is a part of user equipment in multiple user equipmenies of conflict, mixed automatic retransfer instruction is being sent
Before, base station first adjusts the resource location for sending the mixed automatic retransfer of the user's equipment and indicating using different biases.It is excellent
Selection of land, the bias just use enough in the range of positive and negative 3 resource locations, i.e., the message length of 3 bits can table
Show the bias.Also, base station uses dynamic signaling, such as DCI that the bias is sent to the user's equipment.Correspondingly, should
User equipment receive the mixed automatic retransfer instruction before, first adjusted using the received bias it is calculating,
Receive the resource location of mixed automatic retransfer instruction.Base station and user equipment are sent out on the RE after being adjusted by the bias respectively
HARQ feedback is sent and received, avoids conflict.
It is worth noting that, the main inventive concept of the present invention is in the configuration in EPHICH in PDSCH, and HARQ feedback
In EPHICH it is specific how carried and non-invention it is of interest.The scheme of existing PHICH carrying HARQ feedback can be with
It is diverted in the present invention or other bearing modes can also be designed.These modes should all fall into the claims in the present invention
Protection domain.
Also, " the physical mixed automatic re-transmission indicating channel of enhancing " in the present invention is not limited to current LTE-A versions
The EPHICH conferred in 12, any physical mixed automatic re-transmission indicating channel being multiplexed into PDSCH both falls within right will
The scope of " the physical mixed automatic re-transmission indicating channel of enhancing " in asking.
It should be noted that above-described embodiment is only exemplary rather than limitation of the present invention.It is any without departing substantially from this hair
The technical solution of bright spirit should all be fallen under the scope of the present invention, this, which is included the use of in different embodiments, occurs not
Same technical characteristic, installation method can be combined, to obtain advantageous effect.In addition, should not will be any attached in claim
Icon note is considered as the involved claim of limitation；One word of " comprising " is not excluded for unlisted in other claims or specification
Device or step.
Claims (13)
1. a kind of method for the physical mixed automatic re-transmission indicating channel for configuring enhancing in a base station, includes the following steps：
I., the physical mixed automatic re-transmission indicating channel is set among Physical Downlink Shared Channel,
Ii. the resource of the physical mixed automatic re-transmission indicating channel is informed into user equipment,
Iii. according to the scheduling information of the uplink to user equipment, generation mixed automatic retransfer instruction；
Iv. in the resource of the physical mixed automatic re-transmission indicating channel configured by the user's equipment, by the mixing certainly
Dynamic retransmit is sent to the user's equipment,
The step iv includes the following steps：
According to the resource location of the uplink, based on given algorithm, calculate and the associated volume of mixed automatic retransfer instruction
Number；
Number associated with mixed automatic retransfer instruction is adjusted using bias and the bias is sent to the user and is set
It is standby；
It is identified, with to send the mixing on the resource location corresponding to the associated number of mixed automatic retransfer instruction automatic
Retransmit.
2. according to the method described in claim 1, it is characterized in that, the step i includes, physics mixed automatic retransfer is set
Indicate the group of channel, which includes following at least any kind group：
- first kind group, physical mixed automatic re-transmission indicating channel therein be multiplexed to it is among Physical Downlink Shared Channel,
One or more Physical Resource Block centerings of the public search space of the Physical Downlink Control Channel of enhancing, the plurality of physical resource
Block is to being continuous or discrete；
- Second Type group, physical mixed automatic re-transmission indicating channel therein be multiplexed to it is among Physical Downlink Shared Channel,
One or more Physical Resource Block centerings of downlink data are used for transmission, the plurality of Physical Resource Block is to being continuous or discrete；
- the three type group, physical mixed automatic re-transmission indicating channel therein be multiplexed to it is among Physical Downlink Shared Channel,
One or more Physical Resource Block centerings of the specific search space of user equipment of the Physical Downlink Control Channel of enhancing, it is the plurality of
Physical Resource Block is to being continuous or discrete.
3. according to the method described in claim 2, it is characterized in that, one or more is set for the user's equipment in the step i
A group, and set multiple groups when the plurality of group can belong to identical or different type；
Following information is informed the user's equipment by wherein described step ii：
- be configured to the user's equipment physical mixed automatic re-transmission indicating channel group quantity；
The quantity of-each group Physical Resource Block pair included and position；
The resource location where Physical Resource Block centering, physical mixed automatic re-transmission indicating channel in-each group；
Alternatively, the resource of the physical mixed automatic re-transmission indicating channel has been stored on the base station and the user's equipment.
4. according to the method described in claim 3, it is characterized in that, the setting is using following any mode：
- resource is punched；
- rate-matched；
And when the multiplexing is using rate-matched mode, and when including first kind group for described group, the step ii is in institute
It states before user equipment is initially accessed the base station and obtains.
5. according to the method described in claim 3, it is characterized in that, the step ii uses high-level signaling by the physical mixed
The resource of automatic re-transmission indicating channel informs the user's equipment, and the high-level signaling includes RRC signaling or Physical Broadcast Channel
Signaling.
6. according to the method described in claim 1, it is characterized in that, in the step iv, sent using diversity antenna technology
The mixed automatic retransfer indicates that the diversity antenna technology includes any one of following：
- precoding cycles；
- Space-Time Block Coding.
7. according to the method described in claim 2, it is characterized in that, the number is based on following any numbering：
A. all mixing in the resource collection of the physical mixed automatic re-transmission indicating channel of all user equipmenies weigh automatically
Instruction is passed to number as a whole；
B. the mixed automatic retransfer instruction in the resource collection of the physical mixed automatic re-transmission indicating channel of the user's equipment
It is numbered as a whole；
C. the mixing in the resource collection of the physical mixed automatic re-transmission indicating channel of the same type group of the user's equipment
Autonomous retransmission instruction is numbered as a whole；
Wherein, when the number is based on the rule a, the step iv is also wrapped before mixed automatic retransfer instruction is sent
It includes：
- indicate the mixed automatic retransfer in the resource collection of the physical mixed automatic re-transmission indicating channel of the user's equipment
Number notify the user's equipment；
When the number be based on the rule c when, calculate it is associated with mixed automatic retransfer instruction number further include, determine be
Mixed automatic retransfer instruction is sent on the resource location of the resource collection of which type group, and the step iv should in transmission
It is further included before mixed automatic retransfer instruction：
- notify identified type group to give the user's equipment.
8. a kind of method for the physical mixed automatic re-transmission indicating channel for configuring enhancing in a user device, includes the following steps：
I., the physical mixed automatic re-transmission indicating channel is set among Physical Downlink Shared Channel,
Ii. the resource from base station, described physical mixed automatic re-transmission indicating channel is received,
Iii. in the resource of the physical mixed automatic re-transmission indicating channel configured by the user's equipment, receive from base
Mixed automatic retransfer instruction standing, for uplink,
The step iii includes the following steps：
According to the resource location of the uplink, based on given algorithm, calculate and the associated volume of mixed automatic retransfer instruction
Number；
Receive the bias of from base station, mixed automatic retransfer instruction number；
First using the bias come adjust reception and the associated number of mixed automatic retransfer instruction, and it is identified,
With receiving mixed automatic retransfer instruction on the resource location corresponding to the associated number of mixed automatic retransfer instruction.
9. according to the method described in claim 8, it is characterized in that, the step i includes, physics mixed automatic retransfer is set
Indicate the group of channel, which includes following at least any kind group：
- first kind group, physical mixed automatic re-transmission indicating channel therein be multiplexed to it is among Physical Downlink Shared Channel,
One or more Physical Resource Block centerings of the public search space of the Physical Downlink Control Channel of enhancing, the plurality of physical resource
Block is to being continuous or discrete；
- Second Type group, physical mixed automatic re-transmission indicating channel therein be multiplexed to it is among Physical Downlink Shared Channel,
One or more Physical Resource Block centerings of downlink data are used for transmission, the plurality of Physical Resource Block is to being continuous or discrete；
- the three type group, physical mixed automatic re-transmission indicating channel therein be multiplexed to it is among Physical Downlink Shared Channel,
One or more Physical Resource Block centerings of the specific search space of user equipment of the Physical Downlink Control Channel of enhancing, it is the plurality of
Physical Resource Block is to being continuous or discrete.
10. according to the method described in claim 9, it is characterized in that, one or more is set for the user's equipment in the step i
A group, and when setting multiple groups the plurality of group can belong to identical or different type, wherein, the step ii is received from should
The following information of base station：
- be configured to the user's equipment physical mixed automatic re-transmission indicating channel group quantity；
The quantity of-each group Physical Resource Block pair included and position；
The resource location where Physical Resource Block centering, physical mixed automatic re-transmission indicating channel in-each group；
Alternatively, the resource of the physical mixed automatic re-transmission indicating channel has been stored on the user's equipment and the base station.
11. according to the method described in claim 9, it is characterized in that, the configuration is using following any mode：
- resource is punched；
- rate-matched；
And when the multiplexing is using rate-matched mode, and when including first kind group for described group, the step ii is in institute
It states before user equipment is initially accessed the base station and obtains.
12. according to the method described in claim 8, it is characterized in that, the step ii receives the physics using high-level signaling
The resource of hybrid automatic retransmission indication channel, the high-level signaling include RRC signaling or the signaling of Physical Broadcast Channel.
13. according to the method described in claim 9, it is characterized in that, the number is based on following any numbering：
A. all mixing in the resource collection of the physical mixed automatic re-transmission indicating channel of all user equipmenies weigh automatically
Instruction is passed to number as a whole；
B. the mixed automatic retransfer instruction in the resource collection of the physical mixed automatic re-transmission indicating channel of the user's equipment
It is numbered as a whole；
C. the mixing in the resource collection of the physical mixed automatic re-transmission indicating channel of the same type group of the user's equipment
Autonomous retransmission instruction is numbered as a whole；
Wherein, when the number is based on the rule a, the step iii is gone back before mixed automatic retransfer instruction is received
Including：
- receive in from the base station, the physical mixed automatic re-transmission indicating channel of the user's equipment resource collection
The number of mixed automatic retransfer instruction；
When the number is based on the rule c, the step iii is further included before mixed automatic retransfer instruction is received：
- receive from the base station, the mixed automatic retransfer instruction where type group.
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| CN107409018B (en) * | 2015-02-28 | 2019-12-24 | 华为技术有限公司 | Feedback method, device and communication system |
| CN106301673A (en) * | 2015-05-21 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of transmission method based on collaborative network coding scene and system |
| ES2738692T3 (en) * | 2016-11-03 | 2020-01-24 | Ericsson Telefon Ab L M | Enabling multiple numerologies in a network |
| BR112019027483A2 (en) * | 2017-06-23 | 2020-07-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | receiver and transmitter comprising an antenna, communication network, computer program product, method comprising receiving from a transmitter in a communication network, method comprising communicating with one or more receivers |
| CN114938703A (en) * | 2022-04-18 | 2022-08-23 | 北京小米移动软件有限公司 | Physical downlink control channel receiving and sending method and device |
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