CN106301677B - A kind of repeating method and device for wireless communication - Google Patents
A kind of repeating method and device for wireless communication Download PDFInfo
- Publication number
- CN106301677B CN106301677B CN201510299692.9A CN201510299692A CN106301677B CN 106301677 B CN106301677 B CN 106301677B CN 201510299692 A CN201510299692 A CN 201510299692A CN 106301677 B CN106301677 B CN 106301677B
- Authority
- CN
- China
- Prior art keywords
- constellation point
- planisphere
- wireless signal
- group
- positive integer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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 methods and device for wireless communication.First node sends the first wireless signal in step 1, and second wireless singal is sent in step 2.Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet.First wireless signal corresponds to the first physical layer bit packet, includes L1 the first bit groups in the first physical layer bit packet, first modulation symbol in corresponding first wireless signal of first bit group.First modulation symbol is modulated into a constellation point in the first planisphere, and the first planisphere is N1 dimension, and the first planisphere is made of M1 constellation point.The M1 constellation point is divided into M constellation point group.Second wireless singal indicates the L1 corresponding constellation point group of the first bit group.The present invention, which reduces, retransmits the occupied radio resource of signal, improves the probability of correct decoding.
Description
Technical field
The present invention relates to the retransmission schemes of the wireless signal in wireless communication system, more particularly to based on LTE (Long
Term Evolution, long term evolution) wireless signal retransmit method and apparatus.
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) cellular system
And in other common wireless communication systems (such as Wifi, Wimax), HARQ (Hybrid Automatic Repeat
ReQuest, hybrid automatic repeat-request) it is widely adopted as a key technology.The characteristics of HARQ first is that retransmit signal
It being capable of self-demarking code.However HARQ problem is that bolter cannot be according to TB (Transport Block, transmission block)
The quality of reception be adjusted flexibly retransmit signal size.Therefore, the scheme of multistage NACK is suggested, for example, using 2 bits
Indicate the HARQ_ACK for being directed to a TB, 2 bit indications 4 in state, 1 state corresponding A CK, other 3 states pair
Answer running time-frequency resource occupied by NACK-and the re-transmission signal recommended.Multistage NACK scheme can reduce re-transmission letter to a certain extent
Number occupied resource.
Summary of the invention
Inventors discovered through research that existing retransmission scheme faces following problem:
- is mapped to the modulated signal of various constellations point (Constellation Point), can by the probability of mistaken verdict
It can be different.And retransmission scheme and for this feature to make optimization.
In view of the above-mentioned problems, the present invention provides solutions.It should be noted that in the absence of conflict, this Shen
The feature in the embodiment and embodiment in UE please can be applied in base station, and vice versa.Further, do not conflicting
In the case of, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
The invention discloses a kind of methods of wireless communication, wherein includes the following steps:
Step A. first node sends the first wireless signal
Step B. first node sends second wireless singal
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet.First wireless signal is corresponding
First physical layer bit packet includes L1 the first bit groups in the first physical layer bit packet, includes K1 in the first bit group and compare
Spy, first bit group correspond to first modulation symbol in the first wireless signal.First modulation symbol is modulated into
A constellation point in one planisphere, the first planisphere are N1 dimensions, and the first planisphere is made of M1 constellation point.The M1
Constellation point is divided into M constellation point group.Second wireless singal indicates the L1 corresponding star of the first bit group
Seat point group.The L1 is positive integer, and the K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, and the M is small
In the positive integer of the M1.
The essence of the above method is: the constellation point in the first planisphere is divided into multiple constellation point groups, the constellation point
The distance between minimum constellation point in group is greater than the distance between the minimum constellation point in the first planisphere, then the second wireless communication
Number only indicate the L1 corresponding constellation point groups-of the first bit group rather than the corresponding constellation point of instruction, in this way
The occupied resource of second wireless singal reduces.Receiver only needs to decode the first bit group in constellation point group,
And the distance between biggish minimum constellation point helps to improve the probability of correct decoding.
Planisphere in the present invention refers to the pattern of constellation point, does not include mapping relations of the constellation point to bit.As one
A embodiment, the upper layer bit packet are a transmission blocks.As one embodiment, the upper layer bit packet is multiple transmission
Block.As one embodiment, the upper layer bit packet includes multiple MAC (Medium Access Control, centre access control
System) layer bit.It include at least one constellation point in a constellation point group as one embodiment.As one embodiment,
It include M1/M (i.e. M1 is divided by the resulting quotient of M) a constellation point in one constellation point group.As one embodiment, the M constellation
At least there are two the constellation point number in constellation point group is unequal in point group.
As one embodiment, the distance between minimum constellation point in the constellation point group is greater than in the first planisphere
The distance between minimum constellation point.
As one embodiment, the bit in the L1 the first bit groups is all system (Systematic) bit.This
The essence of embodiment is only to send to retransmit signal to information bit, saves interface-free resources.In addition, the present embodiment makes the second nothing
The recipient of line signal can reduce when using viterbi algorithm decoding second wireless singal and fall part searches path, Jin Erti
High decoding performance.
As one embodiment, the first physical layer bit packet further includes verification (Parity) bit.
It further include the first ratio except the L1 the first bit groups as one embodiment, in the first physical layer bit packet
Special group.The essence of the present embodiment is that first node only retransmits the first bit group of part in the first physical layer bit packet.
As one embodiment, the first wireless signal is to send the first time of the upper layer bit packet.Implement as one
Example, the first wireless signal are the P times transmissions of the upper layer bit packet, and the P is greater than 1.
As one embodiment, first node is UE (User Equipment, user equipment), the first wireless signal and
Two wireless signals all transmit on PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel).
As one embodiment, first node is base station, and the first wireless signal and second wireless singal are all in PDSCH
It is transmitted on (Physical Downlink Shared Channel, Physical Downlink Shared Channel).
As one embodiment, the M1 is 2 positive integer power, and the M1 is greater than 2 K1 power.Implement as one
Example, M1 is 2 K1 power.
As one embodiment, the N1 is 2 times of N.The N1 dimension includes N number of 2 dimension, and the N is positive integer, and described 2
Tie up corresponding I/Q plane (I axis and Q axis respectively represent two-way carrier wave orthogonal each other).
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. first node receives third wireless signal, determines at least one of according to third wireless signal:
The coating mistake decoding of upper layer bit described in-
M described in-.
Wherein, the sender of third wireless signal is the target receiver of the first wireless signal.The mesh of first wireless signal
Mark recipient is the target receiver of second wireless singal.
The essence of the above method is that the target receiver assists first node to send re-transmission letter by sending feedback information
Number.
As one embodiment, the first wireless signal and the respective scheduling DCI (Downlink of second wireless singal
Control Information, Downlink Control Information) association RNTI (Radio Network Temporary Identity,
The tentative mark of wireless network) it is all the RNTI for being assigned to the target receiver.As one embodiment, the first wireless signal
All with the generation parameter of the DMRS (Demodulation Reference Signal, demodulated reference signal) of second wireless singal
RNTI including being assigned to the target receiver.
As one embodiment, first node is base station, the target receiver of the first wireless signal and second wireless singal
It is UE.As one embodiment, third wireless signal is in PUCCH (Physical Uplink Control Channel, physics
Uplink control channel) on transmit or third wireless signal transmits on PUSCH.
As one embodiment, the first wireless signal, second wireless singal and third wireless signal respectively in the first subframe,
It is transmitted in second subframe and third subframe.Third subframe is the f1 subframe after the first subframe, and the second subframe is third
The f2 subframe after frame.The f1 is positive integer, and the f2 is positive integer.
As one embodiment, third wireless signal indicates the upper layer bit coating mistake decoding.Implement as one
Example, third wireless signal indicate the M.
As one embodiment, third wireless signal indicates the auxiliary information for determining the M.As the present embodiment
One sub- embodiment, the auxiliary information are the occupied PRB of re-transmission wireless signal for the upper layer bit packet recommended
The quantity of (Physical Resource Block, Physical Resource Block).It is described auxiliary as a sub- embodiment of the present embodiment
Supplementary information is the recipient of the first wireless signal according to the LLR (Log calculated when receiving upper layer bit packet described in signal interpretation
Likelihood Ratio, log-likelihood ratio) quantized value.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following steps:
Step B1. sends the 4th wireless signal, and the 4th wireless signal indicates the M.
As one embodiment, the 4th wireless signal PDCCH (Physical Downlink Control Channel,
Physical Downlink Control Channel) on transmit.As one embodiment, the 4th wireless signal is the scheduling DCI of second wireless singal
(Downlink Control Information, Downlink Control Information).As one embodiment, the 4th wireless signal is high-rise
Signaling is transmitted on PDSCH.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step C. sends the 5th wireless signal, and the 5th wireless signal indicates at least first information in following information:
- the first information: the L1 corresponding constellation point subgroups of the first bit group
The second information of-: J, the J are the constellation ideas that the constellation point in each constellation point group is divided into
The quantity of group, the J is positive integer.
The essence of above-mentioned aspect is: if receiver is still unable to the ratio of upper layer described in correct decoding according to second wireless singal
Spy's packet, by the exquisite division constellation point group, subsequent the 5th wireless signal that can retransmit of first node is by the M star
Seat point group is divided into M*J constellation point subgroup-and further increases minimum constellation point distance in constellation point subgroup.
As one embodiment, the 5th wireless signal includes the first information and the second information, and the first information is uploaded in PDSCH
Defeated, the second information is transmitted on PDCCH or EPDCCH.As one embodiment, the J is 2 positive integer power.
As one embodiment, the distance between minimum constellation point in the constellation point subgroup is greater than the constellation point group
In the distance between minimum constellation point.
Specifically, according to an aspect of the present invention, which is characterized in that the N1 is 2, and the first planisphere is xQAM constellation
Figure or the first planisphere are to rotate planisphere obtained from first angle as xQAM planisphere.The x is 2 positive integer time
Power, the constellation point group include M1/M constellation point, and the M1/M is 2 positive integer power, and first angle is greater than 0 degree
(Degree) less than 90 degree.
XQAM is most common modulation system in existing wireless communications system, and rotates what xQAM was obtained centered on origin
Planisphere is especially suitable for the scene that N1 is greater than 2.The xQAM planisphere of method according to the present invention, xQAM planisphere or rotation
The most starlet that can be divided into multiple rectangles (including square) or constellation point group-maximization constellation point group of line segment
Seat point distance.
As one embodiment, the minimum constellation point in each described constellation point group is equidistant.Implement as one
, the minimum constellation point distance in each described constellation point group is than the ratio of the minimum constellation point distance of upper first planisphere
The square root of M.
As one embodiment, the first modulation symbol is distributed on a resource units.A son as the present embodiment
Embodiment, the resource units are RE (Resource Element, resource particles).A son as the present embodiment is implemented
Example, the resource units include one section of sequential time slices in time-domain, include one section of sequential frequency band in frequency domain.As this reality
A sub- embodiment of example is applied, the resource units (are sent out by an antenna port in the corresponding antenna port of spatial domain
It send).As a sub- embodiment of the present embodiment, the resource units correspond to mutiple antennas port (i.e. by multiple in spatial domain
Antenna port is sent).
As one embodiment, the constellation point subgroup includes M1/ (M*J) a constellation point.
Specifically, according to an aspect of the present invention, which is characterized in that the N1 is 2, and the first planisphere is square star
Planisphere except seat figure and rectangle planisphere, in the M constellation point group at least there are two constellation point in constellation point group
Number is unequal.
As one embodiment, the first planisphere be hexagon (bibliography: 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 one embodiment, all constellation points including multiple (being greater than 1) constellation points in the M constellation point group
In group, the minimum constellation point in constellation point group is equidistant.
Specifically, according to an aspect of the present invention, which is characterized in that the N1 is 2 times of N, the first modulation symbol point
Cloth is on N number of resource units.The N is greater than 1 positive integer.I/Q of first planisphere on each resource units is flat
Projection in face is xQAM planisphere, or rotates planisphere obtained from first angle as xQAM planisphere.The x is 2
Positive integer power, the constellation point group includes M1/M constellation point, and the M1/M is 2 positive integer power, and first angle is big
In 0 degree less than 90 degree.
Specifically, according to an aspect of the present invention, which is characterized in that the N1 is 2 times of N, the first modulation symbol point
Cloth is on N number of resource units.The N is greater than 1 positive integer.I/Q of first planisphere on each resource units is flat
Projection in face is the planisphere except square planisphere and rectangle planisphere, at least two in the M constellation point group
Constellation point number in a constellation point group is unequal.
As one embodiment, at least there are 2 resource units in N number of resource units, the first planisphere is in institute
The pattern (position of i.e. M1 constellation point) stated in the corresponding I/Q plane of 2 resource units is different.
Specifically, according to an aspect of the present invention, which is characterized in that first node is user equipment or first segment
Point is base station equipment.
As one embodiment, first node is that the recipient of user equipment and the first wireless signal is base station equipment.Make
For one embodiment, first node is that the recipient of base station equipment and the first wireless signal is user equipment.
Specifically, according to an aspect of the present invention, which is characterized in that the M is just whole except 2 positive integer power
Number.
As one embodiment, the M is 3 positive integer power.
The invention discloses a kind of methods of wireless communication, wherein includes the following steps:
Step A. second node receives the first wireless signal
Step B. second node receives second wireless singal
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet.First wireless signal is corresponding
First physical layer bit packet includes L1 the first bit groups in the first physical layer bit packet, includes K1 in the first bit group and compare
Spy, first bit group correspond to first modulation symbol in the first wireless signal.First modulation symbol is modulated into
A constellation point in one planisphere, the first planisphere are N1 dimensions, and the first planisphere is made of M1 constellation point.The M1
Constellation point is divided into M constellation point group.Second wireless singal indicates the L1 corresponding star of the first bit group
Seat point group.The L1 is positive integer, and the K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, and the M is small
In the positive integer of the M1.
As one embodiment, second node is UE.As one embodiment, second node is base station.
Specifically, according to an aspect of the present invention, which is characterized in that the N1 is 2, and the first planisphere is xQAM constellation
Figure or the first planisphere are to rotate planisphere obtained from first angle as xQAM planisphere.The x is 2 positive integer time
Power, the constellation point group include M1/M constellation point, and the M1/M is 2 positive integer power, and first angle is greater than 0 degree less than 90
Degree.
The invention discloses a kind of equipment for wireless communication, wherein including following module:
First module: for sending the first wireless signal
Second module: for sending second wireless singal
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet, and the first wireless signal is institute
The first time for stating upper layer bit packet sends.First wireless signal corresponds to the first physical layer bit packet, in the first physical layer bit packet
It include K1 bit in the first bit group including L1 the first bit groups, first bit group corresponds in the first wireless signal
First modulation symbol.First modulation symbol is modulated into a constellation point in the first planisphere, and the first planisphere is
N1 dimension, the first planisphere is made of M1 constellation point.The M1 constellation point is divided into M constellation point group.Second is wireless
L1 described in the signal designation corresponding constellation point groups of the first bit group.The L1 is positive integer, and the K1 is just whole
Number, the N1 is positive integer, and the M1 is positive integer, and the M is less than the positive integer of the M1.
As one embodiment, the first wireless signal is to send the first time of the upper layer bit packet.
As one embodiment, the first wireless signal is the Q times transmission relevant with the upper layer bit packet, and the Q is big
In 1.
Specifically, according to an aspect of the present invention, above equipment further include:
Third module: for receiving third wireless signal, at least one of is determined according to third wireless signal:
The coating mistake decoding of upper layer bit described in-
M described in-.
Wherein, the sender of third wireless signal is the target receiver of the first wireless signal.The mesh of first wireless signal
Mark recipient is the target receiver of second wireless singal.
Specifically, according to an aspect of the present invention, the above-mentioned equipment for wireless communication is characterized in that: described to be used for
It is base station equipment or described for wirelessly communicating that the equipment of wireless communication, which is the recipient of user equipment and the first wireless signal,
Equipment be the recipient of base station equipment and the first wireless signal be user equipment.
The invention discloses a kind of equipment for wireless communication, wherein including following module:
First module: for receiving the first wireless signal
Second module: for receiving second wireless singal
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet, and the first wireless signal is institute
The first time for stating upper layer bit packet sends.First wireless signal corresponds to the first physical layer bit packet, in the first physical layer bit packet
It include K1 bit in the first bit group including L1 the first bit groups, first bit group corresponds in the first wireless signal
First modulation symbol.First modulation symbol is modulated into a constellation point in the first planisphere, and the first planisphere is
N1 dimension, the first planisphere is made of M1 constellation point.The M1 constellation point is divided into M constellation point group.Second is wireless
L1 described in the signal designation corresponding constellation point groups of the first bit group.The L1 is positive integer, and the K1 is just whole
Number, the N1 is positive integer, and the M1 is positive integer, and the M is less than the positive integer of the M1.
Compared to existing public technology, the present invention has following technical advantage:
- is reduced according to the planisphere for receiving signal and is retransmitted the occupied radio resource of signal.
The distance between the minimum constellation point in constellation point group that-increases can improve the probability of correct decoding
If-receiver is still unable to bit packet in upper layer described in correct decoding according to second wireless singal, pass through exquisiteness
The constellation point group is divided, the M constellation point group is divided into more by the subsequent wireless signal that can retransmit of first node
Constellation point group-further increases the minimum constellation point distance in constellation point group.Method i.e. described in the present invention being capable of iteration
It executes.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows LTE according to an embodiment of the invention (Long Term Evolution, long term evolution) system
The flow chart of downlink transfer in system；
Fig. 2 shows the first planisphere according to an embodiment of the invention be 2 dimensions and be rotation 16QAM signal
Figure；
Fig. 3 show the first planisphere according to an embodiment of the invention be 2 dimensions and be 16QAM schematic diagram；
Fig. 4 shows the flow chart of uplink retransmission in LTE system according to an embodiment of the invention；
Fig. 5 show the first planisphere according to an embodiment of the invention be 2 dimensions and be 6 side shape planispheres signal
Figure；
Fig. 6, which shows the first planisphere according to an embodiment of the invention, to be 4 dimensions and in the projection of I/Q plane is
The schematic diagram of 4QAM；
Fig. 7 shows the structural block diagram of the processing unit in first node according to an embodiment of the invention；
Fig. 8 shows the structural block diagram of the processing unit in second node according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of downlink transfer in LTE system, as shown in Fig. 1.In attached drawing 1, base station N1 is UE
The maintenance base station of the serving cell of U2, wherein the step in box T1 is optional step.
ForBase station N1, the first wireless signal is sent in step s 11, receives third wireless signal in step s 12,
Second wireless singal is sent in step S13.ForUE U2, the first wireless signal is received in the step s 21, is sent out in step S22
Third wireless signal is sent, receives second wireless singal in step S23.
In embodiment 1, second wireless singal and the first wireless signal correspond to identical upper layer bit packet.First wireless signal
It is to be modulated by the first physical layer bit packet according to the first planisphere, includes L1 the first bits in the first physical layer bit packet
Group, includes K1 bit in the first bit group, and one first modulation in corresponding first wireless signal of first bit group accords with
Number.First modulation symbol is modulated into a constellation point in the first planisphere, and the first planisphere is N1 dimension, the first planisphere
It is made of M1 constellation point.The M1 constellation point is divided into M constellation point group.Second wireless singal indicates the L1 the
The corresponding constellation point group of one bit group.The L1 is positive integer, and the K1 is positive integer, and the N1 is positive integer,
The M1 is positive integer, and the M is less than the positive integer of the M1.Third wireless signal indicates at least one of:
The coating mistake decoding of upper layer bit described in-
M described in-.
It include systematic bits and check bit in the first physical layer bit packet as the sub- embodiment 1 of embodiment 1, it is described
Bit in L1 the first bit groups is all systematic bits.One sub- embodiment of the sub- embodiment 1 as the embodiment 1,
It include all systematic bits that the upper layer bit packet generates after channel coding in first physical layer bit packet.
As the sub- embodiment 2 of embodiment 1, the M1 is equal to 2 K1 power.
As the sub- embodiment 3 of embodiment 1, second wireless singal is by the second physical layer bit packet according to the second planisphere
It modulates, includes systematic bits and check bit, the system ratio in the second physical layer bit packet in the second physical layer bit packet
Spy is used to indicate the L1 corresponding constellation point groups of the first bit group.
As the sub- embodiment 4 of embodiment 1, base station N1 sends the 4th wireless signal in step s 130, and UE U2 is in step
The 4th wireless signal is received in S230.4th wireless signal indicates the M.4th wireless signal is on PDCCH or EPDCCH
It is transmitted on (Enhanced PDCCH, the PDCCH of enhancing).
As the sub- embodiment 5 of embodiment 1, the first wireless signal and second wireless singal are transmitted on PDSCH, third without
Line signal transmits on PUSCH or PUCCH.
As the sub- embodiment 6 of embodiment 1, the coding mode of the first wireless signal and second wireless singal use is { volume
Product code, Turbo code, LDPC (Low Density Parity Check Code, loe-density parity-check code code } in one.
Embodiment 2
Embodiment 2 illustrate the first planisphere be 2 dimensions and be rotation 16QAM schematic diagram, as shown in Fig. 2.
In embodiment 2, the first planisphere is 2 dimensions, and the first planisphere is to rotate first angle counterclockwise by 16QAM to obtain
It arrives.First modulation symbol carries (Convey) by a resource units, and the K1 in the present invention is 4, described in the present invention
M1 is 16.The M in the present invention is 2, i.e. 16 constellation points in the first planisphere are divided into 2 constellation point groups, wherein empty
8 constellation points of line connection belong to a constellation point group, remaining 8 constellation point belongs to another constellation point group.
In embodiment 2, L1 systematic bits in second wireless singal are respectively used to indicate L1 the first modulation symbols
Corresponding constellation point group, the L1 the first modulation symbols respectively by the L1 the first bit groups modulation in the present invention and
At.
If under the premise of identical code rate and modulation system, the occupied resource of second wireless singal (if
Check bit in first wireless signal is not retransmitted) it is less than or (if the check bit in the first wireless signal is weighed
Pass) it is equal to 1/4 of resource occupied by the first wireless signal, it significantly reduces and retransmits occupied radio resource.And the L1
The equivalent SINR of first modulation symbol has been enhanced 3dB, and (the distance between minimum constellation point in constellation point group compares the first star
The distance between the minimum constellation point of seat figure increasesTimes).
Embodiment 3
Embodiment 3 illustrate the first planisphere be 2 dimensions and be 16QAM schematic diagram, as shown in Fig. 3.
In embodiment 3, the first planisphere is 2 dimensions, and the first planisphere is 16QAM.First modulation symbol is by a resource
Unit carries, and the K1 in the present invention is 4, and the M1 in the present invention is 16.The M in the present invention is 4, i.e. the first star
16 constellation points in seat figure are divided into 4 constellation point groups.The constellation point for including in 4 constellation point groups is respectively by identifying
The line segment of { 1,2,3,4 } connects.
In embodiment 3,2*L1 systematic bits in second wireless singal are used to indicate that L1 the first modulation symbol institutes
Corresponding constellation point group, the L1 the first modulation symbols respectively by the L1 the first bit groups modulation in the present invention and
At.Wherein, corresponding first modulation symbol of every 2 systematic bits.
If under the premise of identical code rate and modulation system, the occupied resource of second wireless singal be less than or
Person is equal to 1/2 of resource occupied by the first wireless signal.And the equivalent SINR of the L1 the first modulation symbols has been enhanced 6dB
(the distance between minimum constellation point in constellation point group increases 2 compared to the distance between the minimum constellation point of the first planisphere
Times).
Embodiment 4
Embodiment 4 illustrates the flow chart of uplink retransmission in LTE system, as shown in Fig. 4.In attached drawing 4, base station N3 is UE
The maintenance base station of the serving cell of U4.
ForUE U4, second wireless singal is sent in step S41, the 6th wireless signal is received in step S42,
The 5th wireless signal is sent in step S43.ForBase station N3, second wireless singal is received in step S31, in step s 32
The 6th wireless signal is sent, the 5th wireless signal is received in step S33.
In embodiment 4, second wireless singal and (before second wireless singal, being sent to base station N3's by UE U4) the
One wireless signal corresponds to identical upper layer bit packet.First wireless signal is by the first physical layer bit packet according to the first planisphere
It modulates, includes L1 the first bit groups in the first physical layer bit packet, include K1 bit in the first bit group, one the
First modulation symbol in corresponding first wireless signal of one bit group.First modulation symbol is modulated into the first planisphere
A constellation point, the first planisphere is N1 dimension, and the first planisphere is made of M1 constellation point.The M1 constellation point is drawn
It is divided into M constellation point group.Second wireless singal indicates the L1 corresponding constellation point group of the first bit group.It is described
L1 is positive integer, and the K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, and the M is being less than the M1 just
Integer.5th wireless signal indicates at least first information in following information:
- the first information: the L1 corresponding constellation point subgroups of the first bit group
The second information of-: J, the J are the constellation ideas that the constellation point in each constellation point group is divided into
The quantity of group, the J is positive integer.
6th wireless signal indicates at least one of:
- (after reception second wireless singal) the upper layer bit coating mistake decoding
J described in-.
As the sub- embodiment 1 of embodiment 1, the 6th wireless signal is in PHICH (Physical HARQ Indicator
Channel, Physical HARQ Indicator Channel) either transmit on PDCCH or EPDCCH.
As the sub- embodiment 2 of embodiment 1, second wireless singal and the 5th wireless signal transmit on PUSCH.
As the sub- embodiment 3 of embodiment 1, the J is equal to 2 positive integer power.
As the sub- embodiment 4 of embodiment 1, the N1 is 2, and the M1 is 16, and the M is 2, and the J is 2.First star
Seat figure is 16QAM.Second wireless singal and the 5th wireless signal respectively include L1 systematic bits.The M constellation point group
Division methods are as shown in Fig. 2 (attached drawing 2 being rotated clockwise first angle, revert to 16QAM).First planisphere is divided into
4 constellation point subgroups, the constellation point for including in division methods 4 constellation point subgroups as shown in Fig. 3-described is respectively by identifying
The line segment of { 1,2,3,4 } connects.The constellation point subgroup of the line segment connection of mark { 2,4 } belongs to the same constellation point group, identify 1,
3 } the constellation point subgroup of line segment connection belongs to another constellation point group.
Embodiment 5
Embodiment 5 illustrate the first planisphere be 2 dimensions and be 6 side shape planispheres schematic diagram, as shown in Fig. 5.
In attached drawing 5, the first planisphere is 2 dimensions.First modulation symbol is carried by 1 resource units, the institute in the present invention
Stating K1 is 2, and the M1 in the present invention is 4.The M in the present invention is 3, i.e. 4 constellation points in the first planisphere are divided
At 3 constellation point groups.The constellation point for including in 3 constellation point groups is identified position { 1,2,3 } respectively.
In embodiment 5, second wireless singal includes the second modulation symbol of positive integer, corresponding second star of the second modulation symbol
Seat figure, the second planisphere is 2 dimensions, includes three vertex that 3 constellation points-are equilateral triangle in I/Q plane.Second nothing
L1 the second modulation symbols in line signal are used to indicate that constellation point group corresponding to L1 the first modulation symbols, and the L1 is a
First modulation symbol is modulated by the L1 the first bit groups in the present invention respectively.
Embodiment 6
Embodiment 6 illustrate the first planisphere be 4 dimensions and in the projection of I/Q plane be 4QAM schematic diagram.
In attached drawing 6, the first planisphere is 4 dimensions.First modulation symbol is carried by 2 resource units, the institute in the present invention
Stating K1 is 2, and the M1 in the present invention is 4.The M in the present invention is 2, i.e. 4 constellation points in the first planisphere are divided
At 2 constellation point groups.
Attached drawing 6 (a) and attached drawing 6 (b) are the projection of I/Q plane of first planisphere on 2 resource units respectively, right
It is { 1,2,3,4 } that the constellation point of 4QAM is numbered respectively.
Four constellation points of the first planisphere are as follows: (1,1), (2,2), (3,3), (4,4).Wherein (e, r) indicates constellation point
The respective number of projection in the I/Q plane on 2 resource units is respectively e and r.
In embodiment 6, a constellation point group includes constellation point (1,1) and (4,4), another constellation point group includes constellation point
(2,2) and (3,3).
Embodiment 7
Embodiment 7 illustrates the structural block diagram of the processing unit in first node, as shown in Fig. 7.In attached drawing 7, processing
Device 100 is mainly made of sending module 101, receiving module 102 and sending module 103.
Sending module 101 is sent for sending the first wireless signal, receiving module 102 for receiving third wireless signal
Module 103 is for sending second wireless singal.
In embodiment 7, second wireless singal and the first wireless signal correspond to identical upper layer bit packet, the first wireless signal
It is the first time transmission of the upper layer bit packet.First wireless signal corresponds to the first physical layer bit packet, the first physical layer bit
Include L1 the first bit groups in packet, includes K1 bit, corresponding first wireless communication of first bit group in the first bit group
First modulation symbol in number.First modulation symbol is modulated into a constellation point in the first planisphere, the first constellation
Figure is N1 dimension, and the first planisphere is made of M1 constellation point.The M1 constellation point is divided into M constellation point group.Second
Wireless signal indicates the L1 corresponding constellation point group of the first bit group.The L1 is positive integer, and the K1 is
Positive integer, the N1 are positive integers, and the M1 is positive integer, and the M is less than the positive integer of the M1.Third wireless signal refers to
Show at least one of:
The coating mistake decoding of upper layer bit described in-
M described in-.
The sender of third wireless signal is the target receiver of the first wireless signal.The intended recipient of first wireless signal
Person is the target receiver of second wireless singal.
As the sub- embodiment 1 of embodiment 7, sending module 103 is also used to send the 5th wireless signal, the 5th wireless signal
Indicate at least first information in following information:
- the first information: the L1 corresponding constellation point subgroups of the first bit group
The second information of-: J, the J are the constellation ideas that the constellation point in each constellation point group is divided into
The quantity of group, the J is positive integer.
As the sub- embodiment 2 of embodiment 7, the bit in the L1 the first bit groups is all systematic bits.
As the sub- embodiment 3 of embodiment 7, the N1 is 2 times of N, and the first modulation symbol is distributed in N number of resource units
On.The N is greater than 1 positive integer.Projection of first planisphere in the I/Q plane on each resource units is square
Planisphere except shape planisphere and rectangle planisphere, at least there are two the stars in constellation point group in the M constellation point group
Seat point number is unequal.
As the sub- embodiment 4 of embodiment 7, first node is UE, and the recipient of the first wireless signal is base station.
As the sub- embodiment 5 of embodiment 7, first node is base station, and the recipient of the first wireless signal is UE.
Embodiment 8
Embodiment 8 illustrates the structural block diagram of the processing unit in second node, as shown in Fig. 8.In attached drawing 8, processing
Device 200 is mainly made of receiving module 201, sending module 202 and receiving module 203.
Receiving module 201 is used to send third wireless signal for receiving the first wireless signal, sending module 202, according to
Third wireless signal determines at least one of:
The coating mistake decoding of upper layer bit described in-
M described in-.
Receiving module 203 is for receiving second wireless singal
In embodiment 8, second wireless singal and the first wireless signal correspond to identical upper layer bit packet, the first wireless signal
It is the first time transmission of the upper layer bit packet.First wireless signal corresponds to the first physical layer bit packet, the first physical layer bit
Include L1 the first bit groups in packet, includes K1 bit, corresponding first wireless communication of first bit group in the first bit group
First modulation symbol in number.First modulation symbol is modulated into a constellation point in the first planisphere, the first constellation
Figure is N1 dimension, and the first planisphere is made of M1 constellation point.The M1 constellation point is divided into M constellation point group.Second
Wireless signal indicates the L1 corresponding constellation point group of the first bit group.The L1 is positive integer, and the K1 is
Positive integer, the N1 are positive integers, and the M1 is positive integer, and the M is less than the positive integer of the M1.Third wireless signal
Recipient is the sender of the first wireless signal.The sender of first wireless signal is the sender of second wireless singal.
As the sub- embodiment 1 of embodiment 8, second node is the terminal for supporting Wifi.
As the sub- embodiment 2 of embodiment 8, the first wireless signal is to send the first time of the upper layer bit packet.
As the sub- embodiment 3 of embodiment 8, the N1 is 2, and the first planisphere is xQAM planisphere.The x is 2 just
Integral number power, the constellation point group include M1/M constellation point, and the M1/M is 2 positive integer power, each described constellation
Minimum constellation point in point group is equidistant.Minimum constellation point distance in each described constellation point group is than upper first planisphere
Minimum constellation point distance ratio be M square root.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.UE or terminal in the present invention include but not
It is limited to mobile phone, tablet computer, notebook, card of surfing Internet, the wireless telecom equipments such as automobile.Base station in the present invention includes but is not limited to
Macrocell base stations, microcell base station, Home eNodeB, the wireless telecom equipments such as relay base station.The embodiment of the present invention is mainly base
In LTE system, however the scope of application of the invention further includes the wireless communication that (but being not limited to) arbitrarily supports HARQ or ARQ
System (such as Wifi, Wimax, following 5G communication system etc.).
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (16)
1. a kind of method of wireless communication, wherein include the following steps:
Step A. first node sends the first wireless signal；
Step B. first node sends second wireless singal；
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet；First wireless signal corresponding first
Physical layer bit packet includes L1 the first bit groups in the first physical layer bit packet, includes K1 bit in the first bit group, and one
First modulation symbol in corresponding first wireless signal of a first bit group；First modulation symbol is modulated into the first constellation
A constellation point in figure, the first planisphere are N1 dimensions, and the first planisphere is made of M1 constellation point；The M1 constellation point
It is divided into M constellation point group；The distance between minimum constellation point of any constellation point group is greater than the in the M constellation point group
The distance between minimum constellation point in one planisphere；Second wireless singal indicates that L1 first bit group is corresponding
The constellation point group；The L1 is positive integer, and the K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, described
M is less than the positive integer of the M1.
2. the method according to claim 1, wherein the step A further includes following steps:
Step A1. first node receives third wireless signal, determines at least one of according to third wireless signal:
The coating mistake decoding of upper layer bit described in-；
M described in-；
Wherein, the sender of third wireless signal is the target receiver of the first wireless signal；The target of first wireless signal connects
Receipts person is the target receiver of second wireless singal.
3. the method according to claim 1, wherein the step B further includes following steps:
Step B1. sends the 4th wireless signal, and the 4th wireless signal indicates the M.
4. the method according to claim 1, wherein further including following steps:
Step C. sends the 5th wireless signal, and the 5th wireless signal indicates at least first information in following information:
- the first information: the L1 corresponding constellation point subgroups of the first bit group；
The second information of-: J, the J are the constellation point subgroups that the constellation point in each constellation point group is divided into
Quantity, the J are positive integers.
5. method according to claim 1 or 4, which is characterized in that the N1 is 2, and the first planisphere is xQAM planisphere,
Or first planisphere be as xQAM planisphere rotate first angle obtained from planisphere；The x is 2 positive integer power,
The constellation point group includes M1/M constellation point, and the M1/M is 2 positive integer power, and first angle is greater than 0 degree less than 90 degree.
6. the method according to claim 1, wherein the N1 be 2, the first planisphere be square planisphere and
Planisphere except rectangle planisphere, at least there are two the constellation point numbers in constellation point group in the M constellation point group not
It is equal.
7. method according to claim 1 or 4, which is characterized in that the N1 is 2 times of N, and the first modulation symbol is distributed in
On N number of resource units；The N is greater than 1 positive integer；First planisphere is in the I/Q plane on each resource units
Projection be xQAM planisphere, or as xQAM planisphere rotate first angle obtained from planisphere；The x is 2 just
Integral number power, the constellation point group include M1/M constellation point, and the M1/M is 2 positive integer power, and first angle is greater than 0 degree
Less than 90 degree.
8. the first modulation symbol is distributed in N number of the method according to claim 1, wherein the N1 is 2 times of N
On resource units；The N is greater than 1 positive integer；Throwing of first planisphere in the I/Q plane on each resource units
Shadow is the planisphere except square planisphere and rectangle planisphere, and at least there are two constellation points in the M constellation point group
Constellation point number in group is unequal.
9. the method according to claim 1, wherein first node is user equipment or first node is base
Station equipment.
10. the method according to claim 1, wherein the bit in the L1 the first bit groups is all system
Bit.
11. a kind of method of wireless communication, wherein include the following steps:
Step A. second node receives the first wireless signal；
Step B. second node receives second wireless singal；
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet；First wireless signal corresponding first
Physical layer bit packet includes L1 the first bit groups in the first physical layer bit packet, includes K1 bit in the first bit group, and one
First modulation symbol in corresponding first wireless signal of a first bit group；First modulation symbol is modulated into the first constellation
A constellation point in figure, the first planisphere are N1 dimensions, and the first planisphere is made of M1 constellation point；The M1 constellation point
It is divided into M constellation point group；The distance between minimum constellation point of any constellation point group is greater than the in the M constellation point group
The distance between minimum constellation point in one planisphere；Second wireless singal indicates that L1 first bit group is corresponding
The constellation point group；The L1 is positive integer, and the K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, described
M is less than the positive integer of the M1.
12. according to the method for claim 11, which is characterized in that the N1 is 2, and the first planisphere is xQAM planisphere,
Or first planisphere be as xQAM planisphere rotate first angle obtained from planisphere；The x is 2 positive integer power,
The constellation point group includes M1/M constellation point, and the M1/M is 2 positive integer power, and first angle is greater than 0 degree less than 90 degree.
13. a kind of equipment for wireless communication, wherein including following module:
First module: for sending the first wireless signal；
Second module: for sending second wireless singal；
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet, and the first wireless signal is on described
The first time of layer bit packet sends；First wireless signal corresponds to the first physical layer bit packet, includes in the first physical layer bit packet
L1 the first bit groups include K1 bit in the first bit group, and one in the first bit group first wireless signal of correspondence
A first modulation symbol；First modulation symbol is modulated into a constellation point in the first planisphere, and the first planisphere is N1 dimension
, the first planisphere is made of M1 constellation point；The M1 constellation point is divided into M constellation point group；The M constellation point
The distance between minimum constellation point of any constellation point group is greater than the distance between the minimum constellation point in the first planisphere in group；
Second wireless singal indicates the L1 corresponding constellation point group of the first bit group；The L1 is positive integer, described
K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, and the M is less than the positive integer of the M1.
14. equipment according to claim 13, which is characterized in that the equipment further include:
Third module: for receiving third wireless signal, at least one of is determined according to third wireless signal:
The coating mistake decoding of upper layer bit described in-；
M described in-；
Wherein, the sender of third wireless signal is the target receiver of the first wireless signal；The target of first wireless signal connects
Receipts person is the target receiver of second wireless singal.
15. the equipment according to claim 13 for wireless communication, which is characterized in that the setting for wireless communication
For the recipient for being user equipment and the first wireless signal be base station equipment or the equipment for wireless communication is base station
The recipient of equipment and the first wireless signal is user equipment.
16. a kind of equipment for wireless communication, wherein including following module:
First module: for receiving the first wireless signal；
Second module: for receiving second wireless singal；
Wherein, second wireless singal and the first wireless signal correspond to identical upper layer bit packet, and the first wireless signal is on described
The first time of layer bit packet sends；First wireless signal corresponds to the first physical layer bit packet, includes in the first physical layer bit packet
L1 the first bit groups include K1 bit in the first bit group, and one in the first bit group first wireless signal of correspondence
A first modulation symbol；First modulation symbol is modulated into a constellation point in the first planisphere, and the first planisphere is N1 dimension
, the first planisphere is made of M1 constellation point；The M1 constellation point is divided into M constellation point group；The M constellation point
The distance between minimum constellation point of any constellation point group is greater than the distance between the minimum constellation point in the first planisphere in group；
Second wireless singal indicates the L1 corresponding constellation point group of the first bit group；The L1 is positive integer, described
K1 is positive integer, and the N1 is positive integer, and the M1 is positive integer, and the M is less than the positive integer of the M1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510299692.9A CN106301677B (en) | 2015-06-03 | 2015-06-03 | A kind of repeating method and device for wireless communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510299692.9A CN106301677B (en) | 2015-06-03 | 2015-06-03 | A kind of repeating method and device for wireless communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106301677A CN106301677A (en) | 2017-01-04 |
| CN106301677B true CN106301677B (en) | 2019-10-01 |
Family
ID=57655536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510299692.9A Active CN106301677B (en) | 2015-06-03 | 2015-06-03 | A kind of repeating method and device for wireless communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106301677B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018145256A1 (en) * | 2017-02-08 | 2018-08-16 | 南通朗恒通信技术有限公司 | Terminal in wireless communications, and method and apparatus in base station |
| CN109923925B (en) * | 2017-02-19 | 2022-03-01 | 上海朗帛通信技术有限公司 | Method and device used in terminal and base station for wireless communication |
| CN111446995A (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 |
| JP2020522154A (en) * | 2017-05-03 | 2020-07-27 | オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． | Data retransmission control method and related products |
| US11889311B2 (en) * | 2020-12-18 | 2024-01-30 | Raytheon Bbn Technologies Corp. | RF repeater and method for semantic-less retransmissions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742455A (en) * | 2003-02-13 | 2006-03-01 | 都科摩欧洲通信技术研究所有限公司 | Differential multiple-length transmit and reception diversity |
| CN102694765A (en) * | 2012-05-15 | 2012-09-26 | 北京航空航天大学 | Design method of non-2 integer power order QAM (quadrature amplitude modulation) |
| CN103036845A (en) * | 2012-12-05 | 2013-04-10 | 清华大学 | Non-equal probability constellation labeling method based on absolute phase shift keying (APSK) constellation diagram |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1592191B1 (en) * | 2004-04-30 | 2007-06-06 | Sony Deutschland GmbH | Equalising structure and method with maximum likelihood detection |
-
2015
- 2015-06-03 CN CN201510299692.9A patent/CN106301677B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1742455A (en) * | 2003-02-13 | 2006-03-01 | 都科摩欧洲通信技术研究所有限公司 | Differential multiple-length transmit and reception diversity |
| CN102694765A (en) * | 2012-05-15 | 2012-09-26 | 北京航空航天大学 | Design method of non-2 integer power order QAM (quadrature amplitude modulation) |
| CN103036845A (en) * | 2012-12-05 | 2013-04-10 | 清华大学 | Non-equal probability constellation labeling method based on absolute phase shift keying (APSK) constellation diagram |
Non-Patent Citations (2)
| Title |
|---|
| QAM调制解调器的研究与实现;陈巍;《中国优秀硕士学位论文全文数据库信息科技辑》;20141115;全文 * |
| 一种新的非2的整数幂阶的QAM调制设计;常承伟，刘荣科，段瑞枫;《电子学报》;20120531;第40卷(第5期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106301677A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106301677B (en) | A kind of repeating method and device for wireless communication | |
| US10554344B2 (en) | Feedback method for hybrid automatic repeat request and an apparatus thereof | |
| US9736831B2 (en) | Method and device for indicating modulation and coding scheme, and method and device for receiving downlink data | |
| CN106549726B (en) | Data transmission method, base station and terminal equipment | |
| ES2461347T3 (en) | Method and arrangement to provide recognition in a telecommunication system | |
| US20200358557A1 (en) | Method and apparatus for data transmission in wireless communication system | |
| US11251813B2 (en) | System and method for processing control information | |
| CN111133817B (en) | Communication method and device | |
| CN109997326A (en) | With the rate-matched and HARQ irregularly modulated | |
| WO2020142911A1 (en) | Downlink data sending method, receiving method, device, and storage medium | |
| US11038625B2 (en) | Base station apparatus, terminal apparatus, and communication method | |
| CN108023675A (en) | Data transmission method and communication equipment | |
| CN109005007A (en) | Retransfer scheduling method and relevant apparatus | |
| KR102517960B1 (en) | Method and apparatus for data transmission in wirelss cellular communication system | |
| CN108289009B (en) | Method and equipment used for UE (user equipment) and base station for channel coding | |
| CN106341209B (en) | A kind of repeating method and device in wireless communication system | |
| CN106375070B (en) | A kind of repeating method and device in mobile communication system | |
| WO2018058448A1 (en) | Data transmission method and device | |
| CN106301707B (en) | A kind of repeating method and device in mobile communication | |
| CN102484526B (en) | Apparatus for transmitting and receiving control information for repeater and method thereof | |
| WO2018148952A1 (en) | Method and device applicable in wireless communications terminal or base station | |
| CN109495205A (en) | A kind of user that be used to wirelessly communicate, the method and apparatus in base station | |
| CN109495206A (en) | A kind of user that be used to wirelessly communicate, the method and apparatus in base station | |
| Ahn et al. | Improved repetition transmission for NR-MBS | |
| US20230362048A1 (en) | Data transmission method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |