CN106301677A - A kind of repeating method for radio communication and device - Google Patents
A kind of repeating method for radio communication and device Download PDFInfo
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- CN106301677A CN106301677A CN201510299692.9A CN201510299692A CN106301677A CN 106301677 A CN106301677 A CN 106301677A CN 201510299692 A CN201510299692 A CN 201510299692A CN 106301677 A CN106301677 A CN 106301677A
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- wireless signal
- constellation point
- planisphere
- bit
- positive integer
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- 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
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0079—Formats for control data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/345—Modifications of the signal space to allow the transmission of additional information
- H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
- H04L27/3483—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
Abstract
The invention discloses a kind of repeating method for radio communication and device.Primary nodal point sends the first wireless signal in step one, sends the second wireless signal in step 2.Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal.The corresponding first physical layer bit bag of first wireless signal, the first physical layer bit bag includes L1 the first bit group, first modulation symbol in corresponding first wireless signal of the first bit group.The constellation point that first modulation symbol is modulated in the first planisphere, the first planisphere is N1 dimension, and the first planisphere is made up of M1 constellation point.Described M1 constellation point is divided into M constellation point group.Second wireless signal indicates described L1 the first each self-corresponding described constellation point group of bit group.The present invention reduces the Radio Resource retransmitted shared by signal, improves the probability of correct decoding.
Description
Technical field
The present invention relates to the retransmission scheme of wireless signal in wireless communication system, particularly relate to base
In LTE (Long Term Evolution, Long Term Evolution) wireless signal retransmit method and dress
Put.
Background technology
Traditional 3GPP (3rd Generation Partner Project, third generation affiliate
Project) in cellular system and other common wireless communication systems (such as Wifi, Wimax),
HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) conduct
One key technology is widely adopted.One of feature of HARQ be retransmit signal be can self-demarking code
's.But the one of HARQ have a problem in that bolter can not according to TB (Transport Block,
Transmission block) the quality of reception be adjusted flexibly retransmit signal size.Therefore, the side of multistage NACK
Case is suggested, such as, i.e. use the instruction of 2 bits for the HARQ_ACK of a TB, 2
In the 4 of bit instruction in state, 1 state corresponding A CK, other 3 state correspondences NACK
And running time-frequency resource shared by the re-transmission signal recommended.Multistage NACK scheme can be to a certain extent
Reduce the resource retransmitted shared by signal.
Summary of the invention
Inventor is found by research, and existing retransmission scheme faces following problem:
-. it is mapped to the modulated signal of various constellations point (Constellation Point), wrong
Erroneous judgement probability certainly is probably different.And retransmission scheme for make optimization for this feature.
For the problems referred to above, the invention provides solution.It should be noted that do not conflicting
In the case of, the embodiment in the UE of the application and the feature in embodiment may apply in base station,
Vice versa.Further, in the case of not conflicting, in embodiments herein and embodiment
Feature can arbitrarily be mutually combined.
A kind of method that the invention discloses radio communication, wherein, comprises the steps:
-step A. primary nodal point sends the first wireless signal
-step B. primary nodal point sends the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal.First nothing
The corresponding first physical layer bit bag of line signal, the first physical layer bit bag includes L1 first ratio
Special group, the first bit group includes K1 bit, corresponding first wireless communication of the first bit group
First modulation symbol in number.First modulation symbol is modulated into one in the first planisphere
Constellation point, the first planisphere is N1 dimension, and the first planisphere is made up of M1 constellation point.Described
M1 constellation point is divided into M constellation point group.Second wireless signal indicates described L1 first
The each self-corresponding described constellation point group of bit group.Described L1 is positive integer, and described K1 is positive integer,
Described N1 is positive integer, and described M1 is positive integer, and described M is less than the positive integer of described M1.
The essence of said method is: the constellation point in the first planisphere is divided into multiple constellation point group,
The distance between minimum constellation point in described constellation point group is more than the starlet in the first planisphere
Distance between seat point, then the second wireless signal only indicates described L1 the first bit group the most right
The described constellation point group-answered rather than the constellation point of instruction correspondence, such second wireless signal institute
The resource taken reduces.Receiver only needs to translate the first bit group in constellation point group
Code, and the distance between bigger minimum constellation point is favorably improved the probability of correct decoding.
Planisphere in the present invention refers to the pattern of constellation point, does not include that constellation point arrives the mapping of bit
Relation.As an embodiment, described upper strata bit bag is a transmission block.As an enforcement
Example, described upper strata bit bag is multiple transmission blocks.As an embodiment, described upper strata bit bag
Including multiple MAC (Medium Access Control, middle Access Control) layer bit.As
One embodiment, a described constellation point group includes at least one constellation point.As an enforcement
Example, a constellation point group includes M1/M (i.e. M1 is divided by the business of M gained) individual constellation point.Make
It is an embodiment, at least constellation point in two constellation point groups in described M constellation point group
Number is unequal.
As an embodiment, the distance between minimum constellation point in described constellation point group is more than the
The distance between minimum constellation point in one planisphere.
As an embodiment, the bit in described L1 the first bit group is all system
(Systematic) bit.The essence of the present embodiment is only to send information bit to retransmit signal,
Save interface-free resources.Additionally, the recipient that the present embodiment makes the second wireless signal is using dimension
When spy decodes the second wireless signal than algorithm, can reduce and fall part searches path, and then improve decoding
Performance.
As an embodiment, the first physical layer bit bag also includes verifying (Parity) bit.
As an embodiment, the first physical layer bit bag also includes described L1 the first bit
The first bit group outside group.The essence of the present embodiment is that primary nodal point only retransmits the first physical layer ratio
Part the first bit group in special bag.
As an embodiment, the first wireless signal is to send the first time of described upper strata bit bag.
As an embodiment, the first wireless signal is the P time transmission of described upper strata bit bag, described
P is more than 1.
As an embodiment, primary nodal point is UE (User Equipment, subscriber equipment),
First wireless signal and the second wireless signal are all at PUSCH (Physical Uplink Shared
Channel, Physical Uplink Shared Channel) upper transmission.
As an embodiment, primary nodal point is base station, the first wireless signal and the second wireless signal
All at PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel)
Upper transmission.
As an embodiment, described M1 is the positive integer power of 2, the described M1 K1 more than 2
Power.As an embodiment, M1 is the K1 power of 2.
As an embodiment, described N1 is the N of 2 times.Described N1 dimension includes N number of 2 dimensions,
Described N is positive integer, and (I axle and Q axle represent mutually the described 2 corresponding I/Q planes of dimension respectively
Mutually orthogonal two-way carrier wave).
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A1. primary nodal point receive the 3rd wireless signal, according to the 3rd wireless signal determine with
At least one lower:
-. described upper strata bit is coated erroneous interpretations
-. described M.
Wherein, the sender of the 3rd wireless signal is the target receiver of the first wireless signal.First
The target receiver of wireless signal is the target receiver of the second wireless signal.
The essence of said method is, described target receiver is by sending feedback information auxiliary first segment
Point sends and retransmits signal.
As an embodiment, the first wireless signal and the second wireless signal respective scheduling DCI
Association RNTI (the Radio of (Downlink Control Information, Downlink Control Information)
Network Temporary Identity, the tentative mark of wireless network) be all be assigned to described
The RNTI of target receiver.As an embodiment, the first wireless signal and the second wireless signal
The generation parameter of DMRS (Demodulation Reference Signal, demodulated reference signal)
All include the RNTI being assigned to described target receiver.
As an embodiment, primary nodal point is base station, the first wireless signal and the second wireless signal
Target receiver be UE.As an embodiment, the 3rd wireless signal is at PUCCH (Physical
Uplink Control Channel, Physical Uplink Control Channel) above transmit, or the 3rd is wireless
Signal transmits on PUSCH.
Divide as an embodiment, the first wireless signal, the second wireless signal and the 3rd wireless signal
Not in the first subframe, the second subframe and the 3rd subframe are transmitted.After 3rd subframe is the first subframe
The f1 subframe, the second subframe is the f2 subframe after the 3rd subframe.Described f1 is
Positive integer, described f2 is positive integer.
As an embodiment, the 3rd wireless signal indicates described upper strata bit to be coated erroneous interpretations.
As an embodiment, the 3rd wireless signal indicates described M.
As an embodiment, the 3rd wireless signal instruction is for determining the auxiliary information of described M.
As a sub-embodiment of the present embodiment, described auxiliary information be recommend for described upper strata ratio
(Physical Resource Block, physics provides the PRB shared by wireless signal that retransmits of special bag
Source block) quantity.As a sub-embodiment of the present embodiment, described auxiliary information is the first nothing
The recipient of line signal is according to the LLR (Log calculated when receiving upper strata bit bag described in signal interpretation
Likelihood Ratio, log-likelihood ratio) quantized value.
Concrete, according to an aspect of the present invention, it is characterised in that described step B also includes
Following steps:
-step B1. sends the 4th wireless signal, and the 4th wireless signal indicates described M.
As an embodiment, the 4th wireless signal is at PDCCH (Physical Downlink
Control Channel, Physical Downlink Control Channel) upper transmission.As an embodiment, the
Four wireless signals are scheduling DCI (the Downlink Control of the second wireless signal
Information, Downlink Control Information).As an embodiment, the 4th wireless signal is high-rise
Signaling, transmits on PDSCH.
Concrete, according to an aspect of the present invention, it is characterised in that also comprise the steps:
-step C. sends the 5th wireless signal, in the 5th wireless signal following information of instruction at least
The first information:
-. the first information: described L1 the first each self-corresponding constellation point subgroup of bit group
-. the second information: J, described J are that the constellation point in each described constellation point group is divided into
The quantity of described constellation point subgroup, described J is positive integer.
The essence of above-mentioned aspect is: if receiver still can not correctly be translated according to the second wireless signal
Code described upper strata bit bag, by exquisite division described constellation point group, primary nodal point is follow-up can
Retransmit the 5th wireless signal and described M constellation point group is divided into M*J constellation point subgroup
Increase the minimum constellation point distance in constellation point subgroup further.
As an embodiment, the 5th wireless signal includes the first information and the second information, the first letter
Breath transmits on PDSCH, and the second information is transmitted on PDCCH or EPDCCH.As one
Embodiment, described J is the positive integer power of 2.
As an embodiment, the distance between minimum constellation point in described constellation point subgroup is more than
The distance between minimum constellation point in described constellation point group.
Concrete, according to an aspect of the present invention, it is characterised in that described N1 is 2, first
Planisphere is xQAM planisphere, or the first planisphere is to be rotated the first angle by xQAM planisphere
And the planisphere obtained.Described x is the positive integer power of 2, and described constellation point group includes M1/M
Individual constellation point, described M1/M is the positive integer power of 2, and the first angle is more than 0 degree (Degree)
Less than 90 degree.
XQAM is modulation system the most frequently used in existing wireless communications system, and revolves centered by initial point
Turn the planisphere that xQAM obtains and be especially suitable for the N1 scene more than 2.According to the method in the present invention,
The xQAM planisphere of xQAM planisphere or rotation can be divided into multiple rectangle and (just include
Square) or the constellation point group of line segment maximize the minimum constellation point distance in constellation point group.
As an embodiment, the minimum constellation point in each described constellation point group is apart from equal.
As an embodiment, the minimum constellation point distance in each described constellation point group is than upper first star
The square root that ratio is M of the minimum constellation point distance of seat figure.
As an embodiment, the first modulation symbol is distributed on a resource units.As this reality
Executing a sub-embodiment of example, described resource units is RE (Resource Element, resource grains
Son).As a sub-embodiment of the present embodiment, described resource units includes one in time domain
Section sequential time slices, includes one section of sequential frequency band in frequency domain.A son as the present embodiment is real
Executing example, described resource units (is i.e. sent out by an antenna port at the corresponding antenna port of spatial domain
Send).As a sub-embodiment of the present embodiment, described resource units is multiple in spatial domain correspondence
Antenna port (is i.e. sent by multiple antenna ports).
As an embodiment, described constellation point subgroup includes M1/ (M*J) individual constellation point.
Concrete, according to an aspect of the present invention, it is characterised in that described N1 is 2, first
Planisphere is the planisphere outside square planisphere and rectangle planisphere, described M constellation point
In group, at least the constellation point number in two constellation point groups is unequal.
As an embodiment, the first planisphere be hexagon (list of references: G.D.Forney,
R.G.Gallager,G.R.Lang,F.M.Longstaff,and S.U.Qureshi,
“Efficient modulation for band-limited channels,”IEEE J.Sel.
Areas Commun., Sep.1984.) planisphere.
As an embodiment, all in described M constellation point group include multiple (i.e. more than 1)
In the constellation point group of constellation point, the minimum constellation point in constellation point group is apart from equal.
Concrete, according to an aspect of the present invention, it is characterised in that described N1 is the 2 of N
Times, the first modulation symbol is distributed on N number of resource units.Described N is greater than the positive integer of 1.
Projection in first planisphere I/Q plane on each described resource units is xQAM planisphere,
Or rotated the first angle by xQAM planisphere and the planisphere that obtains.Described x is 2 just
Integral number power, described constellation point group includes that M1/M constellation point, described M1/M are the positive integers of 2
Power, the first angle is less than 90 degree more than 0 degree.
Concrete, according to an aspect of the present invention, it is characterised in that described N1 is the 2 of N
Times, the first modulation symbol is distributed on N number of resource units.Described N is greater than the positive integer of 1.
Projection in first planisphere I/Q plane on each described resource units is square planisphere
With the planisphere outside rectangle planisphere, at least two constellation point in described M constellation point group
Constellation point number in group is unequal.
As an embodiment, 2 resource units of at least existence in described N number of resource units,
First planisphere pattern (i.e. M1 in each self-corresponding I/Q plane of described 2 resource units
The position of individual constellation point) it is different.
Concrete, according to an aspect of the present invention, it is characterised in that primary nodal point is that user sets
Standby, or primary nodal point is base station equipment.
As an embodiment, primary nodal point is that the recipient of subscriber equipment and the first wireless signal is
Base station equipment.As an embodiment, primary nodal point is connecing of base station equipment and the first wireless signal
Receipts person is subscriber equipment.
Concrete, according to an aspect of the present invention, it is characterised in that described M be 2 the most whole
Positive integer outside power for several times.
As an embodiment, described M is the positive integer power of 3.
A kind of method that the invention discloses radio communication, wherein, comprises the steps:
-step A. secondary nodal point receives the first wireless signal
-step B. secondary nodal point receives the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal.First nothing
The corresponding first physical layer bit bag of line signal, the first physical layer bit bag includes L1 first ratio
Special group, the first bit group includes K1 bit, corresponding first wireless communication of the first bit group
First modulation symbol in number.First modulation symbol is modulated into one in the first planisphere
Constellation point, the first planisphere is N1 dimension, and the first planisphere is made up of M1 constellation point.Described
M1 constellation point is divided into M constellation point group.Second wireless signal indicates described L1 first
The each self-corresponding described constellation point group of bit group.Described L1 is positive integer, and described K1 is positive integer,
Described N1 is positive integer, and described M1 is positive integer, and described M is less than the positive integer of described M1.
As an embodiment, secondary nodal point is UE.As an embodiment, secondary nodal point is base
Stand.
Concrete, according to an aspect of the present invention, it is characterised in that described N1 is 2, first
Planisphere is xQAM planisphere, or the first planisphere is to be rotated the first angle by xQAM planisphere
And the planisphere obtained.Described x is the positive integer power of 2, and described constellation point group includes M1/M
Individual constellation point, described M1/M is the positive integer power of 2, and the first angle is less than 90 degree more than 0 degree.
The invention discloses a kind of equipment for radio communication, wherein, including such as lower module:
First module: for sending the first wireless signal
Second module: for sending the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal, the first nothing
Line signal is to send the first time of described upper strata bit bag.Corresponding first physical layer of first wireless signal
Bit bag, the first physical layer bit bag includes L1 the first bit group, wraps in the first bit group
Include K1 bit, one first modulation symbol in corresponding first wireless signal of the first bit group
Number.The constellation point that first modulation symbol is modulated in the first planisphere, the first planisphere is
N1 dimension, the first planisphere is made up of M1 constellation point.Described M1 constellation point is divided into M
Individual constellation point group.Second wireless signal indicates described L1 the first bit group each self-corresponding described
Constellation point group.Described L1 is positive integer, and described K1 is positive integer, and described N1 is positive integer,
Described M1 is positive integer, and described M is less than the positive integer of described M1.
As an embodiment, the first wireless signal is to send the first time of described upper strata bit bag.
As an embodiment, the first wireless signal is the Q time relevant with described upper strata bit bag
Sending, described Q is more than 1.
Concrete, according to an aspect of the present invention, the said equipment also includes:
Three module: for receive the 3rd wireless signal, according to the 3rd wireless signal determine with down to
One of few:
-. described upper strata bit is coated erroneous interpretations
-. described M.
Wherein, the sender of the 3rd wireless signal is the target receiver of the first wireless signal.First
The target receiver of wireless signal is the target receiver of the second wireless signal.
Concrete, according to an aspect of the present invention, the feature of the above-mentioned equipment for radio communication
It is: the described equipment for radio communication is that the recipient of subscriber equipment and the first wireless signal is
Base station equipment, or the described equipment for radio communication is base station equipment and the first wireless signal
Recipient is subscriber equipment.
The invention discloses a kind of equipment for radio communication, wherein, including such as lower module:
First module: for receiving the first wireless signal
Second module: for receiving the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal, the first nothing
Line signal is to send the first time of described upper strata bit bag.Corresponding first physical layer of first wireless signal
Bit bag, the first physical layer bit bag includes L1 the first bit group, wraps in the first bit group
Include K1 bit, one first modulation symbol in corresponding first wireless signal of the first bit group
Number.The constellation point that first modulation symbol is modulated in the first planisphere, the first planisphere is
N1 dimension, the first planisphere is made up of M1 constellation point.Described M1 constellation point is divided into M
Individual constellation point group.Second wireless signal indicates described L1 the first bit group each self-corresponding described
Constellation point group.Described L1 is positive integer, and described K1 is positive integer, and described N1 is positive integer,
Described M1 is positive integer, and described M is less than the positive integer of described M1.
Comparing existing public technology, the present invention has a following technical advantage:
-. according to the planisphere of reception signal, reduce the Radio Resource retransmitted shared by signal.
-. the distance between minimum constellation point in the constellation point group of increase can improve correct decoding
Probability
-. if receiver still can not upper strata bit described in correct decoding according to the second wireless signal
Bag, by exquisite division described constellation point group, primary nodal point is follow-up can retransmit wireless signal
Described M constellation point group is divided into more constellation point group increase further in constellation point group
Minimum constellation point distance.Method the most described in the present invention can iteration perform.
Accompanying drawing explanation
The detailed description that non-limiting example is made made with reference to the following drawings by reading, this
The other features, objects and advantages of invention will become more apparent:
Fig. 1 show LTE according to an embodiment of the invention (Long Term Evolution,
Long Term Evolution) flow chart of downlink transfer in system；
Fig. 2 shows that the first planisphere according to an embodiment of the invention is 2 dimensions and is to rotate
The schematic diagram of 16QAM；
Fig. 3 shows that the first planisphere according to an embodiment of the invention is 2 dimensions and is 16QAM
Schematic diagram；
Fig. 4 shows the flow chart of uplink retransmission in LTE system according to an embodiment of the invention；
Fig. 5 shows that the first planisphere according to an embodiment of the invention is 2 dimensions and is 6 limit shapes
The schematic diagram of planisphere；
Fig. 6 shows that the first planisphere according to an embodiment of the invention is 4 dimensions and puts down at I/Q
The projection in face is the schematic diagram of 4QAM；
Fig. 7 shows the structure of the processing means in primary nodal point according to an embodiment of the invention
Block diagram；
Fig. 8 shows the structure of the processing means in secondary nodal point according to an embodiment of the invention
Block diagram；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail, needs explanation
It is that, in the case of not conflicting, the feature in embodiments herein and embodiment can be the most mutual
Combination.
Embodiment 1
Embodiment 1 illustrates the flow chart of downlink transfer in LTE system, as shown in Figure 1.Accompanying drawing
In 1, base station N1 is the maintenance base station of the Serving cell of UE U2, and wherein the step in square frame T1 is
Optional step.
ForBase station N1, send the first wireless signal in step s 11, receive in step s 12
3rd wireless signal, sends the second wireless signal in step s 13.ForUE U2, in step
S21 receives the first wireless signal, step S22 sends the 3rd wireless signal, in step S23
Middle reception the second wireless signal.
In embodiment 1, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal.
First wireless signal is to be formed according to the first planisphere modulation by the first physical layer bit bag, the first thing
Reason layer bit bag includes L1 the first bit group, and the first bit group includes K1 bit, one
First modulation symbol in corresponding first wireless signal of individual first bit group.First modulation symbol
The constellation point being modulated in the first planisphere, the first planisphere is N1 dimension, the first star
Seat figure is made up of M1 constellation point.Described M1 constellation point is divided into M constellation point group.The
Two wireless signals indicate described L1 the first each self-corresponding described constellation point group of bit group.Described
L1 is positive integer, and described K1 is positive integer, and described N1 is positive integer, and described M1 is positive integer,
Described M is less than the positive integer of described M1.3rd wireless signal instruction at least one of:
-. described upper strata bit is coated erroneous interpretations
-. described M.
As the sub-embodiment 1 of embodiment 1, the first physical layer bit bag include systematic bits and
Check bit, the bit in described L1 the first bit group is all systematic bits.As described reality
Executing a sub-embodiment of the sub-embodiment 1 of example 1, the first physical layer bit bag includes on described
All systematic bits that layer bit bag generates after chnnel coding.
As the sub-embodiment 2 of embodiment 1, the described M1 K1 power equal to 2.
As the sub-embodiment 3 of embodiment 1, the second wireless signal is by the second physical layer bit bag
Forming according to the second planisphere modulation, the second physical layer bit bag includes systematic bits and verification ratio
Spy, the systematic bits in the second physical layer bit bag is used for indicating described L1 the first bit group each
Self-corresponding described constellation point group.
As the sub-embodiment 4 of embodiment 1, it is wireless that base station N1 sends the 4th in step s 130
Signal, UE U2 receives the 4th wireless signal in step S230.4th wireless signal instruction is described
M.4th wireless signal is on PDCCH or EPDCCH (Enhanced PDCCH, the PDCCH of enhancing)
Upper transmission.
As the sub-embodiment 5 of embodiment 1, the first wireless signal and the second wireless signal at PDSCH
Upper transmission, the 3rd wireless signal transmits on PUSCH or PUCCH.
Use as the sub-embodiment 6 of embodiment 1, the first wireless signal and the second wireless signal
Coded system be convolutional code, Turbo code, LDPC (Low Density Parity Check Code,
Loe-density parity-check code code } in one.
Embodiment 2
Embodiment 2 illustrates the first planisphere and is 2 dimensions and is the schematic diagram of 16QAM rotated, as attached
Shown in Fig. 2.
In embodiment 2, the first planisphere is 2 dimensions, and the first planisphere is to be revolved counterclockwise by 16QAM
Turn the first angle to obtain.First modulation symbol is carried (Convey) by a resource units, the present invention
In described K1 be 4, the described M1 in the present invention is 16.Described M in the present invention is 2,
16 constellation point in i.e. first planisphere are divided into 2 constellation point groups, wherein the 8 of dotted line connection
Individual constellation point belongs to a constellation point group, and remaining 8 constellation point belongs to another constellation point group.
In embodiment 2, L1 systematic bits in the second wireless signal is respectively used to indicate L1
Constellation point group corresponding to first modulation symbol, described L1 the first modulation symbol is respectively by the present invention
Described L1 the first bit group modulation form.
If on the premise of identical code rate and modulation system, shared by the second wireless signal
Resource (if the check bit in the first wireless signal is not retransmitted) less than or (if first
Check bit in wireless signal is retransmitted) equal to 1/4 of resource shared by the first wireless signal, aobvious
Write and decrease the Radio Resource shared by re-transmission.And the equivalent SINR of described L1 the first modulation symbol
(distance between minimum constellation point in constellation point group compares the first planisphere to be enhanced 3dB
Distance between little constellation point increasesTimes).
Embodiment 3
Embodiment 3 illustrates the first planisphere and is 2 dimensions and is the schematic diagram of 16QAM, such as accompanying drawing 3 institute
Show.
In embodiment 3, the first planisphere is 2 dimensions, and the first planisphere is 16QAM.First modulation
Symbol is carried by a resource units, and the described K1 in the present invention is 4, described in the present invention
M1 is 16.Described M in the present invention is 4, and 16 constellation point in the i.e. first planisphere are divided into
4 constellation point groups.The constellation point that described 4 constellation point groups include respectively by mark 1,2,3,
The line segment of 4} connects.
In embodiment 3,2*L1 systematic bits in the second wireless signal is used to indicate that L1 the
Constellation point group corresponding to one modulation symbol, described L1 the first modulation symbol is respectively by the present invention
Described L1 the first bit group modulation forms.Wherein, corresponding one first modulation of every 2 systematic bits
Symbol.
If on the premise of identical code rate and modulation system, shared by the second wireless signal
Resource is less than or equal to 1/2 of resource shared by the first wireless signal.And described L1 first is modulated
The equivalent SINR of symbol has been enhanced 6dB, and (distance between minimum constellation point in constellation point group is compared
Distance between the minimum constellation point of the first planisphere increases 2 times).
Embodiment 4
Embodiment 4 illustrates the flow chart of uplink retransmission in LTE system, as shown in Figure 4.Accompanying drawing
In 4, base station N3 is the maintenance base station of the Serving cell of UE U4.
ForUE U4, step S41 sends the second wireless signal, step S42 receives the
Six wireless signals, send the 5th wireless signal in step S43.ForBase station N3, in step S31
Middle reception the second wireless signal, sends the 6th wireless signal, in step s 32 in step S33
Receive the 5th wireless signal.
In embodiment 4, the second wireless signal and (before the second wireless signal, UE U4 sending
To base station N3's) the corresponding identical upper strata bit bag of the first wireless signal.First wireless signal is
Formed according to the first planisphere modulation by the first physical layer bit bag, the first physical layer bit bag wraps
Including L1 the first bit group, the first bit group includes K1 bit, a first bit group pair
Answer first modulation symbol in the first wireless signal.First modulation symbol is modulated into the first star
A constellation point in seat figure, the first planisphere is N1 dimension, and the first planisphere is by M1 constellation
Point composition.Described M1 constellation point is divided into M constellation point group.Second wireless signal instruction
Described L1 the first each self-corresponding described constellation point group of bit group.Described L1 is positive integer, institute
Stating K1 is positive integer, and described N1 is positive integer, and described M1 is positive integer, and described M is less than
The positive integer of described M1.At least first information in the 5th wireless signal following information of instruction:
-. the first information: described L1 the first each self-corresponding constellation point subgroup of bit group
-. the second information: J, described J are that the constellation point in each described constellation point group is divided into
The quantity of described constellation point subgroup, described J is positive integer.
6th wireless signal instruction at least one of:
-. (after receiving the second wireless signal) described upper strata bit is coated erroneous interpretations
-. described J.
As the sub-embodiment 1 of embodiment 1, the 6th wireless signal is at PHICH (Physical HARQ
Indicator Channel, Physical HARQ Indicator Channel) or PDCCH or EPDCCH on
Transmission.
As the sub-embodiment 2 of embodiment 1, the second wireless signal and the 5th wireless signal at PUSCH
Upper transmission.
As the sub-embodiment 3 of embodiment 1, the described J positive integer power equal to 2.
As the sub-embodiment 4 of embodiment 1, described N1 is 2, and described M1 is 16, described M
Being 2, described J is 2.First planisphere is 16QAM.Second wireless signal and the 5th wireless signal
Include L1 systematic bits respectively.The division methods of described M constellation point group is as shown in Figure 2
(turn clockwise the first angle by accompanying drawing 2, reverts to 16QAM).First planisphere is divided into
4 constellation point subgroups, the most described 4 the constellation point subgroups of division methods include
Constellation point by mark, { line segment of 1,2,3,4} connects respectively.{ line segment of 2,4} connects mark
Constellation point subgroup belongs to same constellation point group, and { the constellation point subgroup that the line segment of 1,3} connects belongs to mark
In another constellation point group.
Embodiment 5
Embodiment 5 illustrates the first planisphere and is 2 dimensions and is the schematic diagram of 6 limit shape planispheres, as attached
Shown in Fig. 5.
In accompanying drawing 5, the first planisphere is 2 dimensions.First modulation symbol is carried by 1 resource units,
Described K1 in the present invention is 2, and the described M1 in the present invention is 4.Described M in the present invention
Being 3,4 constellation point in the i.e. first planisphere are divided into 3 constellation point groups.Described 3 constellations
The constellation point that some group includes identified position { 1,2,3} respectively.
In embodiment 5, the second wireless signal includes positive integer the second modulation symbol, the second modulation symbol
Number correspondence the second planisphere, the second planisphere is 2 dimensions, includes 3 constellation point in I/Q plane
It is three summits of equilateral triangle.L1 in second wireless signal the second modulation symbol is used for referring to
Show L1 constellation point group corresponding to the first modulation symbol, described L1 the first modulation symbol respectively by
Described L1 in the present invention the first bit group modulation forms.
Embodiment 6
Embodiment 6 illustrates the first planisphere and is 4 dimensions and is the signal of 4QAM in the projection of I/Q plane
Figure.
In accompanying drawing 6, the first planisphere is 4 dimensions.First modulation symbol is carried by 2 resource units,
Described K1 in the present invention is 2, and the described M1 in the present invention is 4.Described M in the present invention
Being 2,4 constellation point in the i.e. first planisphere are divided into 2 constellation point groups.
Accompanying drawing 6 (a) and accompanying drawing 6 (b) are first planisphere I/Q plane on 2 resource units respectively
Projection, to the constellation point of 4QAM respectively numbered { 1,2,3,4}.
Four constellation point of the first planisphere are: (1,1), (2,2), (3,3), (4,4).Its
In (e r) represents the respective numbering of projection in constellation point I/Q plane on 2 resource units
It is respectively e and r.
In embodiment 6, a constellation point group includes constellation point (1,1) and (4,4), another star
Seat point group includes constellation point (2,2) and (3,3).
Embodiment 7
Embodiment 7 illustrates the structured flowchart of the processing means in primary nodal point, as shown in Figure 7.
In accompanying drawing 7, processing means 100 is main by sending module 101, receiver module 102 and sending module
103 compositions.
Sending module 101 is for sending the first wireless signal, and receiver module 102 is for receiving the 3rd nothing
Line signal, sending module 103 is for sending the second wireless signal.
In embodiment 7, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal,
First wireless signal is to send the first time of described upper strata bit bag.First wireless signal correspondence first
Physical layer bit bag, the first physical layer bit bag includes L1 the first bit group, the first bit
Group includes K1 bit, first in corresponding first wireless signal of the first bit group
Modulation symbol.The constellation point that first modulation symbol is modulated in the first planisphere, the first star
Seat figure is N1 dimension, and the first planisphere is made up of M1 constellation point.Described M1 constellation point quilt
It is divided into M constellation point group.Second wireless signal indicates described L1 the first bit group the most right
The described constellation point group answered.Described L1 is positive integer, and described K1 is positive integer, and described N1 is
Positive integer, described M1 is positive integer, and described M is less than the positive integer of described M1.3rd is wireless
Signal designation at least one of:
-. described upper strata bit is coated erroneous interpretations
-. described M.
The sender of the 3rd wireless signal is the target receiver of the first wireless signal.First wireless communication
Number target receiver be the target receiver of the second wireless signal.
As the sub-embodiment 1 of embodiment 7, sending module 103 is additionally operable to send the 5th wireless signal,
At least first information in the 5th wireless signal following information of instruction:
-. the first information: described L1 the first each self-corresponding constellation point subgroup of bit group
-. the second information: J, described J are that the constellation point in each described constellation point group is divided into
The quantity of described constellation point subgroup, described J is positive integer.
As the sub-embodiment 2 of embodiment 7, the bit in described L1 the first bit group is all
System bit.
As the sub-embodiment 3 of embodiment 7, described N1 is 2 times of N, and the first modulation symbol divides
Cloth is on N number of resource units.Described N is greater than the positive integer of 1.First planisphere is in each institute
Stating the projection in the I/Q plane on resource units is outside square planisphere and rectangle planisphere
Planisphere, in described M constellation point group, at least the constellation point number in two constellation point groups is not
Equal.
As the sub-embodiment 4 of embodiment 7, primary nodal point is UE, the recipient of the first wireless signal
It it is base station.
As the sub-embodiment 5 of embodiment 7, primary nodal point is base station, the reception of the first wireless signal
Person is UE.
Embodiment 8
Embodiment 8 illustrates the structured flowchart of the processing means in secondary nodal point, as shown in Figure 8.
In accompanying drawing 8, processing means 200 is main by receiver module 201, sending module 202 and receiver module
203 compositions.
Receiver module 201 is for receiving the first wireless signal, and sending module 202 is for sending the 3rd nothing
Line signal, determines at least one of according to the 3rd wireless signal:
-. described upper strata bit is coated erroneous interpretations
-. described M.
Receiver module 203 is for receiving the second wireless signal
In embodiment 8, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal,
First wireless signal is to send the first time of described upper strata bit bag.First wireless signal correspondence first
Physical layer bit bag, the first physical layer bit bag includes L1 the first bit group, the first bit
Group includes K1 bit, first in corresponding first wireless signal of the first bit group
Modulation symbol.The constellation point that first modulation symbol is modulated in the first planisphere, the first star
Seat figure is N1 dimension, and the first planisphere is made up of M1 constellation point.Described M1 constellation point quilt
It is divided into M constellation point group.Second wireless signal indicates described L1 the first bit group the most right
The described constellation point group answered.Described L1 is positive integer, and described K1 is positive integer, and described N1 is
Positive integer, described M1 is positive integer, and described M is less than the positive integer of described M1.3rd is wireless
The recipient of signal is the sender of the first wireless signal.The sender of the first wireless signal is second
The sender of wireless signal.
As the sub-embodiment 1 of embodiment 8, secondary nodal point is the terminal supporting Wifi.
As the sub-embodiment 2 of embodiment 8, the first wireless signal is the first of described upper strata bit bag
Secondary transmission.
As the sub-embodiment 3 of embodiment 8, described N1 is 2, and the first planisphere is xQAM constellation
Figure.Described x is the positive integer power of 2, and described constellation point group includes M1/M constellation point, institute
Stating M1/M is the positive integer power of 2, the minimum constellation point distance in each described constellation point group
Equal.Minimum constellation point distance in each described constellation point group is than the minimum of upper first planisphere
The ratio of constellation point distance is the square root of M.
One of ordinary skill in the art will appreciate that all or part of step in said method is permissible
Instructing related hardware by program to complete, described program can be stored in computer-readable storage medium
In matter, such as read only memory, hard disk or CD etc..Optionally, above-described embodiment whole or
Part steps can also use one or more integrated circuit to realize.Accordingly, above-mentioned enforcement
Each modular unit in example, can use example, in hardware to realize, it is also possible to by software function module
Form realizes, and the application is not limited to the combination of the software and hardware of any particular form.In the present invention
UE or terminal include but not limited to mobile phone, panel computer, notebook, card of surfing Internet, automobile
Deng Wireless Telecom Equipment.Base station in the present invention includes but not limited to macrocell base stations, microcellulor base
Stand, Home eNodeB, the Wireless Telecom Equipment such as relay base station.Embodiments of the invention are mainly based upon
LTE system, but the scope of application of the present invention also includes but is not limited to arbitrarily support HARQ
Or the wireless communication system (such as Wifi, Wimax, following 5G communication system etc.) of ARQ.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the present invention's
Protection domain.All within the spirit and principles in the present invention, any amendment made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (16)
1. a method for radio communication, wherein, comprises the steps:
-step A. primary nodal point sends the first wireless signal
-step B. primary nodal point sends the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal.First nothing
The corresponding first physical layer bit bag of line signal, the first physical layer bit bag includes L1 first ratio
Special group, the first bit group includes K1 bit, corresponding first wireless communication of the first bit group
First modulation symbol in number.First modulation symbol is modulated into one in the first planisphere
Constellation point, the first planisphere is N1 dimension, and the first planisphere is made up of M1 constellation point.Described
M1 constellation point is divided into M constellation point group.Second wireless signal indicates described L1 first
The each self-corresponding described constellation point group of bit group.Described L1 is positive integer, and described K1 is positive integer,
Described N1 is positive integer, and described M1 is positive integer, and described M is less than the positive integer of described M1.
Method the most according to claim 1, it is characterised in that described step A also include as
Lower step:
-step A1. primary nodal point receive the 3rd wireless signal, according to the 3rd wireless signal determine with
At least one lower:
-. described upper strata bit is coated erroneous interpretations
-. described M.
Wherein, the sender of the 3rd wireless signal is the target receiver of the first wireless signal.First
The target receiver of wireless signal is the target receiver of the second wireless signal.
Method the most according to claim 1, it is characterised in that described step B also include as
Lower step:
-step B1. sends the 4th wireless signal, and the 4th wireless signal indicates described M.
Method the most according to claim 1, it is characterised in that also comprise the steps:
-step C. sends the 5th wireless signal, in the 5th wireless signal following information of instruction at least
The first information:
-. the first information: described L1 the first each self-corresponding constellation point subgroup of bit group
-. the second information: J, described J are that the constellation point in each described constellation point group is divided into
The quantity of described constellation point subgroup, described J is positive integer.
5. according to the method described in claim Isosorbide-5-Nitrae, it is characterised in that described N1 is 2, the
One planisphere is xQAM planisphere, or the first planisphere is to be rotated first jiao by xQAM planisphere
The planisphere spent and obtain.Described x is the positive integer power of 2, and described constellation point group includes M1/M
Individual constellation point, described M1/M is the positive integer power of 2, and the first angle is less than 90 degree more than 0 degree.
Method the most according to claim 1, it is characterised in that described N1 is 2, first
Planisphere is the planisphere outside square planisphere and rectangle planisphere, described M constellation point
In group, at least the constellation point number in two constellation point groups is unequal.
7. according to the method described in claim Isosorbide-5-Nitrae, it is characterised in that described N1 is the 2 of N
Times, the first modulation symbol is distributed on N number of resource units.Described N is greater than the positive integer of 1.
Projection in first planisphere I/Q plane on each described resource units is xQAM planisphere,
Or rotated the first angle by xQAM planisphere and the planisphere that obtains.Described x is 2 just
Integral number power, described constellation point group includes that M1/M constellation point, described M1/M are the positive integers of 2
Power, the first angle is less than 90 degree more than 0 degree.
Method the most according to claim 1, it is characterised in that described N1 is 2 times of N,
First modulation symbol is distributed on N number of resource units.Described N is greater than the positive integer of 1.First
Projection in planisphere I/Q plane on each described resource units is square planisphere and length
Planisphere outside square constellations, in described M constellation point group at least in two constellation point groups
Constellation point number unequal.
Method the most according to claim 1, it is characterised in that primary nodal point is subscriber equipment,
Or primary nodal point is base station equipment.
Method the most according to claim 1, it is characterised in that described L1 the first bit
Bit in group is all systematic bits.
The method of 11. 1 kinds of radio communications, wherein, comprises the steps:
-step A. secondary nodal point receives the first wireless signal
-step B. secondary nodal point receives the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal.First nothing
The corresponding first physical layer bit bag of line signal, the first physical layer bit bag includes L1 first ratio
Special group, the first bit group includes K1 bit, corresponding first wireless communication of the first bit group
First modulation symbol in number.First modulation symbol is modulated into one in the first planisphere
Constellation point, the first planisphere is N1 dimension, and the first planisphere is made up of M1 constellation point.Described
M1 constellation point is divided into M constellation point group.Second wireless signal indicates described L1 first
The each self-corresponding described constellation point group of bit group.Described L1 is positive integer, and described K1 is positive integer,
Described N1 is positive integer, and described M1 is positive integer, and described M is less than the positive integer of described M1.
12. methods according to claim 11, it is characterised in that described N1 is 2, the
One planisphere is xQAM planisphere, or the first planisphere is to be rotated first jiao by xQAM planisphere
The planisphere spent and obtain.Described x is the positive integer power of 2, and described constellation point group includes M1/M
Individual constellation point, described M1/M is the positive integer power of 2, and the first angle is less than 90 degree more than 0 degree.
13. 1 kinds of equipment for radio communication, wherein, including such as lower module:
First module: for sending the first wireless signal
Second module: for sending the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal, the first nothing
Line signal is to send the first time of described upper strata bit bag.Corresponding first physical layer of first wireless signal
Bit bag, the first physical layer bit bag includes L1 the first bit group, wraps in the first bit group
Include K1 bit, one first modulation symbol in corresponding first wireless signal of the first bit group
Number.The constellation point that first modulation symbol is modulated in the first planisphere, the first planisphere is
N1 dimension, the first planisphere is made up of M1 constellation point.Described M1 constellation point is divided into M
Individual constellation point group.Second wireless signal indicates described L1 the first bit group each self-corresponding described
Constellation point group.Described L1 is positive integer, and described K1 is positive integer, and described N1 is positive integer,
Described M1 is positive integer, and described M is less than the positive integer of described M1.
14. equipment according to claim 13, it is characterised in that this equipment also includes:
Three module: for receive the 3rd wireless signal, according to the 3rd wireless signal determine with down to
One of few:
-. described upper strata bit is coated erroneous interpretations
-. described M.
Wherein, the sender of the 3rd wireless signal is the target receiver of the first wireless signal.First
The target receiver of wireless signal is the target receiver of the second wireless signal.
15. equipment for radio communication according to claim 13, it is characterised in that institute
The equipment for radio communication of stating be the recipient of subscriber equipment and the first wireless signal be that base station sets
Standby, or the described equipment for radio communication is base station equipment and the recipient of the first wireless signal
It it is subscriber equipment.
16. 1 kinds of equipment for radio communication, wherein, including such as lower module:
First module: for receiving the first wireless signal
Second module: for receiving the second wireless signal
Wherein, the second wireless signal and the corresponding identical upper strata bit bag of the first wireless signal, the first nothing
Line signal is to send the first time of described upper strata bit bag.Corresponding first physical layer of first wireless signal
Bit bag, the first physical layer bit bag includes L1 the first bit group, wraps in the first bit group
Include K1 bit, one first modulation symbol in corresponding first wireless signal of the first bit group
Number.The constellation point that first modulation symbol is modulated in the first planisphere, the first planisphere is
N1 dimension, the first planisphere is made up of M1 constellation point.Described M1 constellation point is divided into M
Individual constellation point group.Second wireless signal indicates described L1 the first bit group each self-corresponding described
Constellation point group.Described L1 is positive integer, and described K1 is positive integer, and described N1 is positive integer,
Described M1 is positive integer, and described M is less than the positive integer of described M1.
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| CN106301707B (en) * | 2015-06-07 | 2019-10-18 | 上海朗帛通信技术有限公司 | A kind of repeating method and device in mobile communication |
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| CN109923925A (en) * | 2017-02-19 | 2019-06-21 | 南通朗恒通信技术有限公司 | A kind of terminal that be used to wirelessly communicate, the method and apparatus in base station |
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| CN111446994A (en) * | 2017-04-18 | 2020-07-24 | 上海朗帛通信技术有限公司 | Method and device for user equipment and base station for multi-antenna transmission |
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