CN111092691A - Signal sending method, device, communication node and storage medium - Google Patents
Signal sending method, device, communication node and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000003860 storage Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 title abstract description 12
- 238000013507 mapping Methods 0.000 claims abstract description 17
- 230000011664 signaling Effects 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 17
- 125000004122 cyclic group Chemical group 0.000 description 13
- 239000004973 liquid crystal related substance Substances 0.000 description 10
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- 238000012545 processing Methods 0.000 description 4
- 101150096310 SIB1 gene Proteins 0.000 description 2
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
The application provides a signal sending method, a signal sending device, a communication node and a storage medium, wherein the method comprises the following steps: determining a configuration mode of the sequence, wherein the configuration mode comprises at least one of the number of the sequence, the length of the sequence and the phase rotation angle of an element in the sequence; generating a sequence according to the configuration mode; and mapping the sequence to channel resources and transmitting. The method and the device can adopt a proper configuration mode to send signals, so that a proper CM value is newly designed.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a signal transmission method, apparatus, communication node, and storage medium.
Background
In the system design of the fifth Generation Mobile communication technology (5G, 5th Generation Mobile Networks or 5th Generation wireless Systems), especially for the unlicensed frequency band, a new sequence or transmission sequence or sequence of channel transmission or a transmission structure of signal transmission needs to be designed due to the requirement that a signal occupies a frequency domain bandwidth. There is no clear way for the current quotient to make a new design with the appropriate Cubic Metric (CM) value.
Disclosure of Invention
In order to solve at least one of the above technical problems, embodiments of the present application provide the following solutions.
The embodiment of the application provides a signal sending method, which comprises the following steps:
determining a configuration mode of the sequence, wherein the configuration mode comprises at least one of the number of the sequence, the length of the sequence and the phase rotation angle of an element in the sequence;
generating a sequence according to the configuration mode;
and mapping the sequence to channel resources and transmitting.
The embodiment of the application provides a signal sending device, including:
the device comprises a sending module and a receiving module, wherein the sending module is used for sending signals by adopting a configuration mode, and the configuration mode comprises at least one of the number of sequences, the length of the sequences, the phase rotation angle of elements in the sequences and the frequency domain interval between different sequences.
The embodiment of the application provides a communication node for signal transmission, which comprises: a processor and a memory;
the memory is to store instructions;
the processor is configured to read the instructions to perform any of the embodiments of the signaling method described above.
The embodiment of the application provides a storage medium, wherein a computer program is stored in the storage medium, and when being executed by a processor, the computer program realizes any one method in the embodiment of the application.
The signal transmission method provided by the embodiment of the application adopts a sequence configuration mode to generate a sequence, and maps and transmits a signal, so that an appropriate CM value is newly designed.
Drawings
Fig. 1 is a flowchart illustrating an implementation of a signaling method according to an embodiment of the present application;
FIG. 2 is a first sequence diagram according to an embodiment of the present disclosure;
FIG. 3 is a second sequence configuration diagram according to an embodiment of the present application;
FIG. 4 is a third schematic sequence diagram according to an embodiment of the present application;
FIG. 5A is a diagram showing a CCDF curve for a prior art sequence CM value;
FIG. 5B is a diagram illustrating a first CCDF curve for sequential CM values according to an embodiment of the present application;
FIG. 5C is a second diagram of the CCDF curve for sequential CM values according to an embodiment of the present application; (ii) a
Fig. 6 is a schematic structural diagram of a signal transmitting apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a signaling communication node according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
An embodiment of the present application provides a signal sending method, and as shown in fig. 1, a flowchart for implementing a signal sending method according to an embodiment of the present application includes:
s11: determining a configuration mode of the sequence, wherein the configuration mode comprises at least one of the number of the sequence, the length of the sequence and the phase rotation angle of an element in the sequence;
s12: generating a sequence according to the configuration mode;
s13: and mapping the sequence to channel resources and transmitting.
The configuration mode may further include: at least one of a frequency domain starting position, a frequency domain offset value, a frequency domain interval between different sequences.
In one embodiment, any of the configurations is signaled by control signaling, predefined combinations for selection by the correspondent node, pre-stored in the correspondent node triggered by control signaling, signaled by a control channel, or configured by higher layers.
In one embodiment, the phase rotation angles of the elements in the sequence are:
the phase rotation angle of an element in the sequence relative to each corresponding element in the initial sequence; or, the phase of the element in the sequence is rotated by an angle relative to the phase of each corresponding element in other sequences, where the other sequences are any other sequences in the signal except the sequence.
In one embodiment, the initial sequence is a sequence generated according to a predetermined rule, or a sequence obtained by performing a corresponding operation on the generated sequence, or a predefined sequence.
In one embodiment, the frequency domain spacing between the different sequences is:
h or 1/H Resource Blocks (RB), H or 1/H Resource Elements (RE), H or 1/H data subcarriers or H or 1/H Random Access Channel (RACH) subcarriers; h is an integer,/represents a division.
In one embodiment, the number of sequences, the length of the sequences, or the frequency domain interval between different sequences is signaled by control signaling, or is stored or configured in the communication node in a predefined manner.
In one embodiment, the configuration comprises:
the number of sequences is 2;
the length of the sequence is W, wherein W is a positive integer;
the phase rotation angle of each element in each sequence relative to each corresponding element in the initial sequence is X; x is [0,2 pi ], and 2 pi is 360 degrees.
The frequency domain interval between sequences is greater than or equal to 0.
In one embodiment, there is no phase difference between the 2 sequences.
It should be noted that:
the absence of a phase difference between the sequences may mean that the phase differences between corresponding elements of the sequences are identical.
There is a phase difference between the sequences, which may mean that the phase difference between corresponding elements of the sequences is not uniform.
The absence of a phase difference between elements within a sequence may refer to the phase relationship between elements within a sequence being consistent with the phase relationship between elements within the initial sequence to which the sequence corresponds.
A phase difference between elements within a sequence may mean that the phase relationship between elements within a sequence is not consistent with the phase relationship between elements within the initial sequence to which the sequence corresponds.
In one embodiment, the configuration comprises:
the number of sequences is 2;
the length of the sequence is W, and W is a positive integer;
in the 2 sequences, the phase rotation angle of each element in one sequence relative to each corresponding element in the initial sequence is X, and the phase rotation angle of each element in the other sequence relative to each corresponding element in the initial sequence is Y; said X and Y are not equal and said X and Y are values in the range of [0,2 π); the 2 pi is 360 degrees;
the frequency domain spacing between sequences is greater than or equal to 0.
In one embodiment, said Y is equal to X + pi/2, X +3 pi/2, X-pi/2 or X-3 pi/2;
wherein, pi represents 180 degrees;
denotes multiplication;
and/represents division.
In one embodiment, the phase difference between the 2 sequences is pi/2 or 3 x pi/2.
In one embodiment, the inter-frequency spacing between the 2 sequences is (2^ N) ^ M-W subcarriers, where M, N are positive integers and ^ represents the power.
In one embodiment, the 2 sequences are each 139 in length, and the frequency domain spacing between the 2 sequences is 885.
In one embodiment, the configuration comprises:
the number of sequences is 4;
the length of the sequence is W, wherein W is a positive integer;
in any one of the sequences, the phase rotation angles of the elements relative to the corresponding elements in the initial sequence are the same;
the frequency domain interval between the sequences is 0 or H RBs, H REs, H data subcarriers or H RACH subcarriers; and H is an integer.
In one embodiment, the phase rotation angles of each element in the first, second, third and fourth sequences relative to each corresponding element in the initial sequence in the 4 sequences are respectively:
x, X + pi/2, X; or,
x, X +3 π/2, X; or,
x, X-pi/2, X; or,
x, X-3 π/2, X; wherein
X is a value in the range of [0,2 π);
wherein, pi represents 180 degrees; denotes multiply,/denotes divide.
In one embodiment, there is a phase difference between the 4 sequences.
In one embodiment, the configuration comprises:
the number of sequences is 8;
the length of the sequence is W, wherein W is a positive integer;
in any one of the sequences, the phase rotation angles of the elements relative to the corresponding elements in the initial sequence are the same;
the frequency domain spacing between sequences is greater than or equal to 0.
In one embodiment, the phase rotation angles of each element in the first, second, third, fourth, fifth, sixth, seventh, and eighth sequences relative to each corresponding element in the initial sequence are:
x, X, X, X, X + π, X + π, X, X; or,
x, X + π, X + π, X, X, X, X, X; or
X, X + pi/2, X + pi/2, X; or,
X、X+3*π/2、X+3*π/2、X+π、X+π、X+3*π/2、X+3*π/2、X；
x is a value in the range of [0,2 π);
where, pi represents 180 degrees, and x represents multiplication and/represents division.
In one embodiment, there is a phase difference between the respective sequences.
In one embodiment, the configuration comprises:
the number of sequences is 2;
the length of the sequence is W, wherein W is a positive integer;
in any one of the sequences, the phase rotation angles of the elements relative to the corresponding elements in the initial sequence are the same or different;
the frequency domain interval between the sequences is 0, H or 1/H RB, H or 1/H RE, H or 1/H data subcarrier or H or 1/H RACH subcarrier; h is an integer, where/represents divide.
In one embodiment, there is no phase difference between the respective sequences.
It should be noted that:
the absence of a phase difference between the sequences may mean that the phase differences between corresponding elements of the sequences are identical.
There is a phase difference between the sequences, which may mean that the phase difference between corresponding elements of the sequences is not uniform.
The absence of a phase difference between elements within a sequence may refer to the phase relationship between elements within a sequence being consistent with the phase relationship between elements within the initial sequence to which the sequence corresponds.
A phase difference between elements within a sequence may mean that the phase relationship between elements within a sequence is not consistent with the phase relationship between elements within the initial sequence to which the sequence corresponds.
In one embodiment, the phase difference between the respective elements is any of [0,2 pi) or [0, -2 pi).
Typically by
The phase difference among the elements is any value of 0, pi/2, pi and 3 x pi/2; or,
the phase difference among the elements is any value of 0, -pi/2, -pi, -3 x pi/2.
The invention adopts the following technical scheme:
the signal sending method comprises the following steps:
the length W of the sequences, the number Y of the sequences, and the rotation angle between the sequences or between elements in the sequences is Z; the interval between sequences is H or 1/H Resource Blocks (RB), Resource Elements (RE), data subcarriers or Random Access Channel (RACH) subcarriers;
wherein, W, Y and H are integers, and the value range of Z is 0 to 360 degrees, namely [0 degree, 360 degrees ];
it should be noted that Z may be one value or multiple values, and sequences at different positions may correspond to different angles; or each element of the same sequence may be at a different angle relative to the corresponding element in the original sequence, or a combination of the two.
It should be noted that, the Physical Random Access Channel (PRACH) sub-carrier and the data sub-carrier are separated by 120KHz, 60KHz, 30KHz, integral multiple of 15KHz, 1/N of 15KHz, where N is a positive integer.
The length of the sequences, the number of the sequences and the frequency domain interval between different sequences can be informed by predefining or control signaling; the control signaling may be: higher layer Radio Resource Control (RRC), Resource Information Block 1(SIB1, System Information Block1), or Remaining Minimum System Information (RMSI).
The method comprises the following steps: two sections of identical sequences are adopted for transmission, namely Y takes the value of 2, and no interval exists between the sequences; there is no phase difference between the sequences, there is no phase difference between the elements within the sequences, and the value of Z is 0.
The second method comprises the following steps: two sections of same sequences are adopted for transmission, and fixed intervals are reserved between the sequences; there is a certain phase difference between the sequences and no phase difference between the elements within the sequences.
Preferably, the first and second liquid crystal films are made of a polymer,
the length of the sequences was 139, with fixed intervals between the sequences: 1024-; the interval refers to the end of one sequence relative to the head of the other sequence.
Preferably, the first and second liquid crystal films are made of a polymer,
the two sequences have a certain phase difference of pi/2, or pi 3/2; wherein pi is pi. For convenience of description, in the following examples, pi is substituted for pi.
Typically, the amount of the liquid to be used,
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +90 degrees; that is to say that the first and second electrodes,
[x；x+pi/2；]；
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x-90 degrees; that is to say that the first and second electrodes,
[x；x-pi/2；]；
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +270 degrees; that is to say that the first and second electrodes,
[x；x+pi*3/2；]；
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x-270 degrees; that is to say that the first and second electrodes,
[x；x-pi*3/2；]；
wherein, the value of x is any angle from 0 degree to 360 degrees. The value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
It should be noted that the 'initial sequence' is a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
Note that the 'corresponding operation' refers to cyclic shift and the like, but is not limited to only the cyclic shift.
The third method comprises the following steps: four sections of same sequences are adopted for transmission, and no interval exists between the sequences; a certain phase difference exists between the sequences; there is no phase difference between elements within the sequence.
Preferably, the first and second liquid crystal films are made of a polymer,
the sequences have a certain phase difference:
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +90 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+pi/2；x+pi/2；x；]；
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +270 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+pi*3/2；x+pi3*/2；x]；
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x-90 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x-90 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x-pi/2；x-pi/2；x；]；
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x-270 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x-270 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x-pi*3/2；x-pi3*/2；x]。
where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
It should be noted that the 'initial sequence' is a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
Note that the 'corresponding operation' refers to cyclic shift and the like, but is not limited to only the cyclic shift.
The method four comprises the following steps: four sections of same sequences are adopted for transmission, and no interval exists between the sequences; a certain phase difference exists between the sequences; there is no phase difference between elements within the sequence.
Preferably, the first and second liquid crystal films are made of a polymer,
the sequences have a certain phase difference:
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; that is to say that the first and second electrodes,
[x；x；x；x+pi]；
for example, when x is 0 degrees, the rotation angles of the 4 sequences are:
[0；0；0；pi]；
when x is 90 degrees, the rotation angles of the 4 sequences are:
[pi/2；pi/2；pi/2；3*pi/2]；
when x is 180 degrees, the rotation angles of the 4 sequences are:
[pi；0；0；0]；
when x is 270 degrees, the rotation angles of the 4 sequences are:
[3*pi/2；3*pi/2；3*pi/2；pi/2]。
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; namely, [ x; x + pi; x + pi; x + pi; h;
for example, when x is 0 degrees, the rotation angles of the 4 sequences are:
[0；pi；pi；pi]；
when x is 90 degrees, the rotation angles of the 4 sequences are:
[pi/2；pi/2；pi/2；3*pi/2]；
when x is 180 degrees, the rotation angles of the 4 sequences are:
[pi；0；0；0]；
when x is 270 degrees, the rotation angles of the 4 sequences are:
[3*pi/2；3*pi/2；3*pi/2；pi/2]；
where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
It should be noted that the 'initial sequence' is a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
Note that the 'corresponding operation' refers to cyclic shift and the like, but is not limited to only the cyclic shift.
The method five comprises the following steps: 8 sections of identical ZC sequences are adopted for transmission, and no interval exists between the sequences; a certain phase difference exists between the sequences; there is no phase difference between elements within the sequence.
For example, the phase rotation angle of each element of the first sequence relative to the element corresponding to the initial sequence is x, and the phase rotation angle of each element of the second sequence relative to the element corresponding to the initial sequence is x degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fifth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees, and the phase rotation angles of the elements of the sixth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are x degrees; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x；x；x；x+pi；x+pi；x；x]；
or the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fifth sequence relative to the elements corresponding to the initial sequence are all x degrees, and the phase rotation angles of the elements of the sixth sequence relative to the elements corresponding to the initial sequence are all x degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are x; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+pi；x+pi；x；x；x；x；x]；
the method six: 8 sections of same sequences are adopted for transmission, and no interval exists between the sequences; a certain phase difference exists between the sequences; there is a phase difference between elements within the sequence.
The phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +90 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fifth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees, and the phase rotation angles of the elements of the sixth sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+pi/2；x+pi/2；x+pi；x+pi；x+pi/2；x+pi/2；x]；
for example, when x is 90 degrees, the rotation angles of the 8 sequences are:
[pi/2；pi；pi；3*pi/2；3*pi/2；pi；pi；pi/2]；
for example, when x is 180 degrees, the rotation angles of the 8 sequences are:
[pi；3*pi/2；3*pi/2；2*pi；2*pi；3*pi/2；3*pi/2；pi]；
for example, when x is 270 degrees, the rotation angles of the 8 sequences are:
[3*pi/2；2*pi；2*pi；pi/2；pi/2；2*pi；2*pi；3*pi/2]
for example, when x is 360 degrees, the rotation angles of the 8 sequences are:
[2*pi；pi/2；pi/2；pi；pi；pi/2；pi/2；2*pi]
or the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +270 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fifth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees, and the phase rotation angles of the elements of the sixth sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+3*pi/2；x+3*pi/2；x+pi；x+pi；x+3*pi/2；x+3*pi/2；x]；
for example, when x is 90 degrees, the rotation angles of the 8 sequences are:
[pi/2；2*pi；2*pi；3*pi/2；3*pi/2；2*pi；2*pi；pi/2]；
for example, when x is 270 degrees, the rotation angles of the 8 sequences are:
[3*pi/2；pi；pi；pi/2；pi/2；pi；pi；3*pi/2]；
for example, when x is 180 degrees, the rotation angles of the 8 sequences are:
[pi；pi/2；pi/2；2*pi；2*pi；pi/2；pi/2；pi]；
for example, when x is 360 degrees, the rotation angles of the 8 sequences are:
[2*pi；3*pi/2；3*pi/2；pi；pi；3*pi/2；3*pi/2；2*pi]
where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
It should be noted that the 'initial sequence' is a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
Note that the 'corresponding operation' refers to cyclic shift and the like, but is not limited to only the cyclic shift.
The method comprises the following steps: two sections of identical ZC sequences are adopted for transmission, and fixed intervals are arranged between the sequences; no phase difference between the overall sequences; there is a phase difference between elements within the sequence.
Compared with the prior art, the method and the device (system) accord with the bandwidth of the unauthorized OCB (authorized channel bandwidth), so that the node can be accessed to the network in the unauthorized frequency band.
The angle X is the same angle as represented by angle X + N × 2 × pi, N being an integer.
Where pi or pi represents 180 degrees, and represents multiplication and/represents division.
The following detailed description of the embodiments is made with reference to the accompanying drawings:
the first embodiment is as follows:
the present embodiment may correspond to the first method. Two identical 139 sequences are adopted for transmission, and no interval exists between the sequences; there is no phase difference between the sequences and no phase difference between elements within the sequences. As shown in the attached figure 2 of the drawings,
the sequence 1 and the sequence 2 occupy no space in the frequency domain;
there is no phase difference between sequence 1 and sequence 2;
it should be noted that: the identical sequences refer to identical sequence lengths, identical cyclic shift values of the positions of the sequences and identical logic root sequences;
it should be noted that this embodiment is typically applied in the scenarios that the subcarrier spacing of the Physical Random Access Channel (PRACH) is 120KHz, 60KHz, 30KHz, an integral multiple of 15KHz, 1/N of 15KHz, and the like, where N is a positive integer.
Example two:
this embodiment may correspond to the second method. Two sections of same sequences are adopted for transmission, and intervals are reserved between the sequences; a certain phase difference exists between the sequences; there is no phase difference between elements within the sequence. The sequence length W, the number of repetitions of the sequence Y, the rotation angle between elements between sequences or within sequences Z; the interval between sequences is H RBs or REs or data subcarriers or RACH subcarriers;
wherein, W, Y and H are integers, and the value range of Z is 0 to 360 degrees, namely [0,360 ];
it should be noted that Z may be a value or multiple values, and sequences at different positions may correspond to different angles; or each element of the same sequence may be at a different angle relative to the corresponding element in the original sequence, or a combination of the two.
The length of the sequences, the number of the sequences and the frequency domain interval between different sequences can be informed by predefining or control signaling; the control signaling may be: higher layer Radio Resource Control (RRC), Resource Information Block 1(SIB1, System Information Block1), or Remaining Minimum System Information (RMSI).
Preferably, the first and second liquid crystal films are made of a polymer,
the frequency domain spacing between different sequences is: (2^ N) M-W subcarriers, wherein M, N is positive integer, and ^ represents power.
Preferably, the first and second liquid crystal films are made of a polymer,
when N is 10, the frequency domain interval between different sequences is 1024-W, and W is the sequence length;
preferably, the first and second liquid crystal films are made of a polymer,
there are fixed inter-frequency intervals of 885 subcarriers between the sequences.
For the phase relationship between the sequences, the embodiments of the present application propose the following ways:
preferably, the first and second liquid crystal films are made of a polymer,
the sequences have a certain phase difference of pi/2, or pi 3/2; that is to say that the first and second electrodes,
[ x, x + pi/2 ]; or,
[ x, x + pi 3/2 ]; or,
[ x, x-pi/2 ]; or,
[x,x-pi* 3/2]。
where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the original sequence.
The initial sequence may be a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
It should be noted that this embodiment is typically applied in the scenario where the subcarrier spacing is 120KHz, 60KHz, 30KHz, an integer multiple of 15KHz, 1/N of 15KHz, and the like, where N is a positive integer.
As shown in fig. 2, sequence 2 is a phase-rotated sequence of sequence 1, and the phase rotation has a value { pi/2, -pi/2, 3-pi/2, -3-pi/2 }. The frequency domain spacing between sequences is 885 subcarriers.
Where pi or pi represents 180 degrees, and represents multiplication and/represents division.
Example three:
this embodiment may correspond to method three described above. Four sections of same sequences are adopted for transmission, and the interval between the sequences is more than or equal to 0; a certain phase difference exists between the sequences; there is no relative phase rotation between elements within the sequence.
Preferably, the first and second liquid crystal films are made of a polymer,
the phase difference between the sequences is a certain value, and the rotation angles of the 4 sequences are as follows:
[ x; x + pi/2; x + pi/2; x ]; or,
[ x; x + pi 3/2; x + pi 3/2; x ]; or,
[ x; x-pi/2; x-pi/2; x ]; or
[x；x-pi*3/2；x-pi*3/2；x]。
Wherein, the value of x is 0 to 360 degrees.
Where pi or pi represents 180 degrees, and represents multiplication and/represents division.
Where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
Example four:
this embodiment may correspond to the method four described above. Four sections of same sequences are adopted for transmission, and the interval between the sequences is more than or equal to 0; a certain phase difference exists between the sequences; there is no phase difference between elements within the sequence.
Preferably, the first and second liquid crystal films are made of a polymer,
the sequences have a certain phase difference:
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; that is to say that the first and second electrodes,
[x；x；x；x+pi；]；
for example, when x is 0 degrees, the rotation angles of the 4 sequences are:
[0；0；0；pi；]；
when x is 90 degrees, the rotation angles of the 4 sequences are:
[pi/2；pi/2；pi/2；3*pi/2；]；
when x is 180 degrees, the rotation angles of the 4 sequences are:
[pi；0；0；0；]；
when x is 270 degrees, the rotation angles of the 4 sequences are:
[3*pi/2；3*pi/2；3*pi/2；pi/2；]。
the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; namely, [ x; x + pi; x + pi; x + pi; h;
for example, when x is 0 degrees, the rotation angles of the 4 sequences are:
[0；pi；pi；pi；]；
when x is 90 degrees, the rotation angles of the 4 sequences are:
[pi/2；pi/2；pi/2；3*pi/2；]；
when x is 180 degrees, the rotation angles of the 4 sequences are:
[pi；0；0；0；]；
when x is 270 degrees, the rotation angles of the 4 sequences are:
[3*pi/2；3*pi/2；3*pi/2；pi/2；]；
where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
Wherein, the value of x is 0 to 360 degrees.
Where pi or pi represents 180 degrees, and represents multiplication and/represents division.
It should be noted that the 'initial sequence' is a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
Note that the 'corresponding operation' refers to cyclic shift and the like, but is not limited to only the cyclic shift.
EXAMPLE five
This embodiment may correspond to method five described above.
8 sections of identical ZC sequences are adopted for transmission, and the interval between the sequences is more than or equal to 0; a certain phase difference exists between the sequences; there is no phase difference between elements within the sequence.
For example, the phase rotation angle of each element of the first sequence relative to the element corresponding to the initial sequence is x, and the phase rotation angle of each element of the second sequence relative to the element corresponding to the initial sequence is x degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fifth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees, and the phase rotation angles of the elements of the sixth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are x degrees; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x；x；x；x+pi；x+pi；x；x]；
or the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x degrees; the phase rotation angles of the elements of the fifth sequence relative to the elements corresponding to the initial sequence are all x degrees, and the phase rotation angles of the elements of the sixth sequence relative to the elements corresponding to the initial sequence are all x degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are x; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+pi；x+pi；x，x，x；x；x]；
where pi or pi represents 180 degrees, and represents multiplication and/represents division.
Where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
Wherein, the value of x is 0 to 360 degrees.
Example six:
this embodiment may correspond to method six described above.
8 sections of same sequences are adopted for transmission, and the interval between the sequences is more than or equal to 0; a certain phase difference exists between the sequences; there is a phase difference between elements within the sequence.
The phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +90 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fifth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees, and the phase rotation angles of the elements of the sixth sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are all x +90 degrees; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+pi/2；x+pi/2；x+pi，x+pi，x+pi/2；x+pi/2；x]；
for example, when x is 90 degrees, the rotation angles of the 8 sequences are:
[pi/2pi pi 3*pi/2 3*pi/2 pi pi pi/2]；
for example, when x is 180 degrees, the rotation angles of the 8 sequences are:
[pi 3*pi/2 3*pi/2 2*pi 2*pi 3*pi/2 3*pi/2 pi]；
for example, when x is 270 degrees, the rotation angles of the 8 sequences are:
[3*pi/2 2*pi 2*pi pi/2 pi/2 2*pi 2*pi 3*pi/2]
for example, when x is 360 degrees, the rotation angles of the 8 sequences are:
[2*pi pi/2 pi/2 pi pi pi/2 pi/2 2*pi]
or the phase rotation angles of the elements of the first sequence relative to the elements corresponding to the initial sequence are all x, and the phase rotation angles of the elements of the second sequence relative to the elements corresponding to the initial sequence are all x +270 degrees; the phase rotation angles of the elements of the third sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of the elements of the fourth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees; the phase rotation angles of the elements of the fifth sequence relative to the corresponding elements of the initial sequence are all x +180 degrees, and the phase rotation angles of the elements of the sixth sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of all elements of the seventh sequence relative to the corresponding elements of the initial sequence are all x +270 degrees; the phase rotation angles of all elements of the eighth sequence relative to the corresponding elements of the initial sequence are all x degrees; that is to say that the first and second electrodes,
[x；x+3*pi/2；x+3*pi/2；x+pi，x+pi，x+3*pi/2；x+3*pi/2；x]；
for example, when x is 90 degrees, the rotation angles of the 8 sequences are:
[pi/2 2*pi 2*pi 3*pi/2 3*pi/2 2*pi 2*pi pi/2]；
for example, when x is 270 degrees, the rotation angles of the 8 sequences are:
[3*pi/2 pi pi pi/2 pi/2 pi pi 3*pi/2]；
for example, when x is 180 degrees, the rotation angles of the 8 sequences are:
[pi pi/2 pi/2 2*pi 2*pi pi/2 pi/2 pi]；
for example, when x is 360 degrees, the rotation angles of the 8 sequences are:
[2*pi 3*pi/2 3*pi/2 pi pi 3*pi/2 3*pi/2 2*pi]
where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the initial sequence.
Wherein, the value of x is 0 to 360 degrees.
Where pi or pi represents 180 degrees, and represents multiplication and/represents division.
It should be noted that the 'initial sequence' is a sequence generated according to a certain rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
Note that the 'corresponding operation' refers to cyclic shift and the like, but is not limited to only the cyclic shift.
Example seven:
two sections of identical ZC sequences are adopted for transmission, and fixed intervals are arranged between the sequences; no phase difference between the overall sequences; there is a phase difference between elements within the sequence.
A certain interval exists between the sequence 1 and the sequence 2, and the interval can be 0; or may be one RB or a plurality of RBs; there may also be one RE or a plurality of REs.
The phase difference between the elements is any value of [0, pi/2) or [0, -2 pi).
Typically by
The phase spacing between the individual elements may be 0, + pi/2, + pi; any value of + pi 3/2;
the phase spacing between the individual elements may be 0, -pi/2, -pi; -pi 3/2;
as shown in FIG. 4, element 2 of sequence 1 has a phase rotation of pi with respect to element 1 of sequence 1;
and so on;
each adjacent element has a fixed phase rotation relationship, and the trend can be in a gradually rising trend or a gradually falling trend;
typically, the amount of the liquid to be used,
the elements of sequence 1 have the following phase values relative to the original sequence: the phase value of element 1 is x + pi/2; the phase value of element 2 is x + pi; the phase value of element 3 is x +3 pi/2; the phase value of element 4 is x +2 pi; the phase value of element 4 is x +5 pi/2, and so on.
Where the value of x is the phase value of the first sequence at the low end of the frequency domain or the initial position of the frequency domain mapping relative to the original sequence.
Where pi or pi represents 180 degrees, and represents multiplication and/represents division.
Wherein, the value of x is 0 to 360 degrees.
Fig. 5A is a schematic diagram of a Complementary Cumulative Distribution Function (CCDF) curve of a conventional sequence CM value, fig. 5B is a schematic diagram of a CCDF curve of a sequence CM value according to an embodiment of the present invention, and fig. 5C is a schematic diagram of a CCDF curve of a sequence CM value according to an embodiment of the present invention. As shown in fig. 5A, the probability of a CM value greater than 2.333 is 0.05088, or the CM value is 2.333. Fig. 5B corresponds to a sequence length of 139, a number of sequences of 2, and a frequency domain interval between sequences of 885 subcarriers. As shown in fig. 5B, the probability of a CM value greater than 2.333 is 0.05088, or the CM value is 2.333, performing the same as the CM value of the prior art. Fig. 5C corresponds to the fourth embodiment of the present application, in which the sequence length is 139, the number of sequences is 8, and the inter-sequence frequency domain interval is 0. As shown in fig. 5C, the probability of CM value greater than 2.66 is 0.05072 or, alternatively, CM value of 2.66, which performs similarly to the CM value of the prior art.
An embodiment of the present application further provides a signal sending apparatus, as shown in fig. 6, which is a schematic structural diagram of the apparatus, and includes:
a determining module 610, configured to determine a configuration manner of the sequence, where the configuration manner includes at least one of a number of the sequence, a length of the sequence, and a phase rotation angle of an element in the sequence;
a generating module 620, configured to generate a sequence according to the configuration manner;
a mapping and transmitting module 630, configured to map the sequence to a channel resource and transmit the sequence.
In one possible embodiment, the phase rotation angle of each element in the sequence is:
the phase rotation angle of each element in the sequence relative to each corresponding element in the initial sequence; or, the phase of each element in the sequence is rotated by an angle relative to the phase of each corresponding element in other sequences, where the other sequences are any other sequences in the signal except the sequence.
The functions of each module in each apparatus in the embodiment of the present application may refer to the corresponding description in the above method embodiment, and are not described herein again.
Fig. 7 is a schematic structural diagram of a communication node for signal transmission according to an embodiment of the present application, and as shown in fig. 7, a communication node 700 provided in the embodiment of the present application includes: memory 703 and processor 704. The communication node 70 may also include an interface 701 and a bus 702. The interface 701 and the memory 703 are connected to the processor 704 via a bus 702. The memory 703 is used to store instructions. The processor 704 is configured to read the instruction to execute the above-mentioned technical solution applied to the method embodiment of the communication node, which has similar implementation principles and technical effects, and is not described herein again.
The present application provides a storage medium storing a computer program which, when executed by a processor, implements the method in the above embodiments.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (26)
1. A signal transmission method, comprising:
determining a configuration mode of the sequence, wherein the configuration mode comprises at least one of the number of the sequence, the length of the sequence and the phase rotation angle of an element in the sequence;
generating a sequence according to the configuration mode;
and mapping the sequence to channel resources and transmitting.
2. The method of claim 1, wherein the configuring further comprises: at least one of a frequency domain starting position, a frequency domain offset value, a frequency domain interval between different sequences.
3. The method of claim 2, wherein any of the configurations are signaled by control signaling, predefined combinations for selection by the corresponding node, pre-stored in the corresponding node triggered by control signaling, signaled by a control channel, or configured by higher layers.
4. The method of claim 1, wherein the phase rotation angles of the elements in the sequence are:
the phase rotation angle of an element in the sequence relative to each corresponding element in the initial sequence; or, the phase of the elements in the sequence is rotated by an angle relative to the phase of each corresponding element in other sequences, the other sequences being other sequences than the sequence in the signal.
5. The method according to claim 4, wherein the initial sequence is a sequence generated according to a predetermined rule, or a sequence obtained by performing corresponding operations on the generated sequence, or a predefined sequence.
6. The method of claim 2, wherein the frequency domain spacing between the different sequences is:
h or 1/H resource blocks RB, H or 1/H resource elements RE, H or 1/H data subcarriers or H or 1/H random access channel RACH subcarriers; wherein H is an integer,/represents a division.
7. The method of claim 4, wherein the configuration comprises:
the number of sequences is 2;
the length of the sequence is W, wherein W is a positive integer;
the phase rotation angles of the elements in each sequence relative to the corresponding elements in the initial sequence are X; x is [0,2 pi ], and 2 pi is 360 degrees.
The frequency domain spacing between sequences is greater than or equal to 0.
8. The method of claim 7, wherein there is no phase difference between the 2 sequences.
9. The method of claim 4, wherein the configuration comprises:
the number of sequences is 2;
the length of the sequence is W, and W is a positive integer;
in the 2 sequences, the phase rotation angle of each element in one sequence relative to each corresponding element in the initial sequence is X, and the phase rotation angle of each element in the other sequence relative to each corresponding element in the initial sequence is Y; said X and Y are not equal and said X and Y are values in the range of [0,2 π); the 2 pi is 360 degrees;
the frequency domain spacing between sequences is greater than or equal to 0.
10. The method of claim 9, wherein Y is equal to X + pi/2, X + 3X pi/2, X-pi/2, or X-3X pi/2;
wherein, pi represents 180 degrees;
denotes multiplication;
and/represents division.
11. The method according to claim 9, characterized in that the phase difference between the 2 sequences is pi/2 or 3 x pi/2.
12. The method of claim 9, wherein the inter-frequency spacing between the 2 sequences is (2^ N) M-W subcarriers, wherein M and N are positive integers and ^ represents powers.
13. The method of claim 12, wherein the 2 sequences are each 139 in length and the frequency domain spacing between the 2 sequences is 885.
14. The method of claim 4, wherein the configuration comprises:
the number of sequences is 4;
the length of the sequence is W, wherein W is a positive integer;
in any one of the sequences, the phase rotation angles of the elements relative to the corresponding elements in the initial sequence are the same;
the frequency domain interval between the sequences is 0 or H RBs, H REs, H data subcarriers or H RACH subcarriers; and H is an integer.
15. The method according to claim 14, wherein the phase rotation angles of the elements in the first, second, third and fourth sequences relative to the corresponding elements in the initial sequence are respectively:
x, X + pi/2, X; or,
x, X +3 π/2, X; or,
x, X-pi/2, X; or,
X、X-3*π/2、X-3*π/2、X；
wherein X is a value in the range of [0,2 π);
wherein, pi represents 180 degrees; denotes multiply,/denotes divide.
16. The method of claim 15, wherein the 4 sequences are out of phase with each other.
17. The method of claim 4, wherein the configuration comprises:
the number of sequences is 8;
the length of the sequence is W, wherein W is a positive integer;
in any one of the sequences, the phase rotation angles of the elements relative to the corresponding elements in the initial sequence are the same;
the frequency domain spacing between sequences is greater than or equal to 0.
18. The method according to claim 17, wherein the phase rotation angles of the elements in the first, second, third, fourth, fifth, sixth, seventh and eighth sequences of the 8 sequences with respect to the corresponding elements in the initial sequence are respectively:
x, X, X, X, X + π, X + π, X, X; or,
x, X + π, X + π, X, X, X, X, X; or
X, X + pi/2, X + pi/2, X; or,
X、X+3*π/2、X+3*π/2、X+π、X+π、X+3*π/2、X+3*π/2、X；
x is a value in the range of [0,2 π);
where, π represents 180 degrees, and represents multiply,/represents divide.
19. The method of claim 18, wherein the sequences are phase-shifted from one another.
20. The method of claim 4, wherein the configuration comprises:
the number of sequences is 2;
the length of the sequence is W, wherein W is a positive integer;
in any one of the sequences, the phase rotation angles of the elements relative to the corresponding elements in the initial sequence are the same or different;
the frequency domain interval between the sequences is 0, H or 1/H resource blocks RB, H or 1/H resource elements RE, H or 1/H data subcarriers or H random access channel RACH subcarriers; h is an integer,/represents a division.
21. The method of claim 20, wherein there is no phase difference between the respective sequences.
22. The method of claim 21,
the phase difference among the elements is any value of 0, pi/2, pi and 3 x pi/2; or,
the phase difference among the elements is any value of 0, -pi/2, -pi, -3 x pi/2.
23. A signal transmission device, comprising:
the determining module is used for determining a configuration mode of the sequence, wherein the configuration mode comprises at least one of the number of the sequence, the length of the sequence and the phase rotation angle of an element in the sequence;
the generating module is used for generating a sequence according to the configuration mode;
and the mapping and sending module is used for mapping the sequence to the channel resource and sending the channel resource.
24. The apparatus of claim 23, wherein the phase rotation angles of the elements in the sequence are:
the phase rotation angle of an element in the sequence relative to each corresponding element in the initial sequence; or, the phase of the element in the sequence is rotated by an angle relative to the phase of each corresponding element in other sequences, where the other sequences are any other sequences in the signal except the sequence.
25. A signaling node, comprising: a processor and a memory;
the memory is to store instructions;
the processor is configured to read the instructions to perform the method of any of claims 1 to 22.
26. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1 to 22.
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| CN111092691B (en) * | 2019-07-26 | 2024-07-30 | 中兴通讯股份有限公司 | Signal transmission method, device, communication node and storage medium |
| CN111092703A (en) * | 2019-07-26 | 2020-05-01 | 中兴通讯股份有限公司 | Signal sending method, device, communication node and storage medium |
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| CN101860395A (en) * | 2010-05-31 | 2010-10-13 | 合肥东芯通信股份有限公司 | Method and equipment for generating preamble sequence |
| WO2018207296A1 (en) * | 2017-05-10 | 2018-11-15 | 株式会社Ｎｔｔドコモ | User equipment and wireless communication method |
| CN109429337A (en) * | 2017-08-24 | 2019-03-05 | 上海诺基亚贝尔股份有限公司 | Method, equipment and computer-readable medium for unlicensed band communication |
| US20190081840A1 (en) * | 2017-09-11 | 2019-03-14 | Qualcomm Incorporated | Reference signal design for pi/2 binary phase shift keying modulation with frequency domain spectral shaping |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021017632A1 (en) * | 2019-07-26 | 2021-02-04 | 中兴通讯股份有限公司 | Signal transmission method and device, communication node, and storage medium |
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