CN108111253B

CN108111253B - Signal configuration and transmission method and device

Info

Publication number: CN108111253B
Application number: CN201710819476.1A
Authority: CN
Inventors: 陈艺戬; 鲁照华; 吴昊; 李儒岳
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-09-12
Filing date: 2017-09-12
Publication date: 2022-04-29
Anticipated expiration: 2037-09-12
Also published as: CN108111253A; WO2019052454A1

Abstract

The present disclosure provides a signal configuration and transmission method and device, wherein one of the signal configuration methods includes: jointly encoding the waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters; and sending the information after the joint coding to a receiving end. By the method and the device, the technical problem of overlarge overhead of transmitting the waveform indication information in the related technology is solved.

Description

Signal configuration and transmission method and device

Technical Field

The present disclosure relates to the field of communications, and in particular, to a signal configuration and transmission method and apparatus.

Background

In New Radio (NR) of the related art, uplink transmission supports two transmission waveforms, which are DFT-S-OFDM and CP-OFDM, respectively. The former is the uplink SC-FDMA (single-carrier Frequency-Division Multiple Access) in LTE, and the latter is the waveform of Long-Term Evolution (LTE) downlink, which is also commonly referred to as OFDM (Orthogonal Frequency-Division Multiplexing) or OFDMA (Orthogonal Frequency-Division Multiple Access). DFT-S-OFDM has smaller peak-to-average ratio, and CP-OFDM has better transmission performance.

In NR, uplink supports two transmission modes, one is transmission based on a Codebook (CB), and the other is transmission not based on a codebook. Referred to as CB based transmission and Non CB based transmission, respectively.

CB based transmission requires the transceiving end to agree on a codebook. The base station assigns the number of transmission layers r to be used and the corresponding code word w (i) below the number of transmission layers, and if there is a selection of a Sounding Reference Signal (SRS), the base station may also indicate information of a Sounding Reference Indicator (SRI), and fig. 1 is a schematic diagram of codebook-based transmission in the related art of the present disclosure.

In this way, the terminal may send an SRS, and the base station selects some resources from the SRS resources as references for uplink data or control transmission. For CB based transmission, the base station needs further indication TRI (layer number indication) and TPMI (Transmitted Precoding Matrix Indicator), Precoding is performed on the basis of SRS Precoding and used for data or control transmission. Here precoding can also be used for port selection.

The Non-CB-based transmission does not need the transceiving end to agree on the codebook, and the base station may send the TRI to indicate the number of transmission layers r, or may not indicate, and when not indicating, the default number r is equal to the number of ports in the SRS resource. The terminal determines the transmission of data by using the indicated SRS resource, generally using the same precoding manner as the indicated SRS, without performing additional precoding, and fig. 2 is a schematic diagram of the transmission not based on the codebook according to the present disclosure.

Some terminals may have multiple panels or multiple radio frequency beams of different aspects, and in this case, multiple SRIs may be indicated, corresponding to the transmission of different antenna groups or beams, respectively. Different SRIs may correspond to the same or different transport layers. Multiple SRIs may be indicated in both Non-CB based and CB based transmissions.

Generally, for better transmission performance, there is significant gain in dynamically switching, including: switching between DFT-S-OFDMA and CP-OFDM, between CB-based and Non-CB-based transmissions, and between different numbers of SRIs.

However, this can significantly increase the physical layer control signaling overhead, such as: the switching of the Waveform needs 1bit, the CB based transmission and the Non-CB based transmission need 1bit, and the switching is carried out among different SRIs, if the maximum 2 SRIs need 1bit, the maximum 4 SRIs need 2bit, and the maximum 8 SRIs need 3 bit. The physical layer signaling overhead is an extremely precious resource, because the robustness requirement of the control channel is very high, the code rate is very low in general actual transmission, the modulation coding mode is also low, and a lot of actual transmission resources are occupied. Overhead waste can be significant if there are a large number of UEs.

In view of the above problems in the related art, no effective solution has been found at present.

Disclosure of Invention

The embodiment of the disclosure provides a signal configuration and transmission method and device, so as to at least solve the technical problem of excessive overhead of waveform indication information transmission in the related art.

According to an embodiment of the present disclosure, there is provided a signal configuration method including: jointly encoding the waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters; and sending the jointly coded information.

According to an embodiment of the present disclosure, there is provided a signal indication method including: determining a jointly encoded waveform; implicit indication is made of the jointly coded waveform.

According to an embodiment of the present disclosure, there is provided a signal configuration method including: jointly encoding the transmission mode indication information and at least one of the following parameter information: rank indication, waveform, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters; sending jointly encoded information

According to another embodiment of the present disclosure, there is provided a signal configuration apparatus including: an encoding module, configured to jointly encode the waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

and the sending module is used for sending the information after the joint coding.

According to another embodiment of the present disclosure, there is provided a signal indicating apparatus including: a determining module for determining a jointly encoded waveform; and the indicating module is used for implicitly indicating the waveform after the joint coding.

According to another embodiment of the present disclosure, there is provided a signal configuration apparatus including: an encoding module, configured to jointly encode the transmission mode indication information and at least one of the following parameter information: rank indication, waveform, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters; and the sending module is used for sending the information after the joint coding.

According to yet another embodiment of the present disclosure, there is also provided a storage medium. The storage medium is configured to store program code for performing the steps of:

jointly encoding the waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

and sending the jointly coded information.

By the method and the device, the technical problem of overlarge overhead of transmitting the waveform indication information in the related technology is solved by jointly encoding the waveform indication information and other parameter information, and the resource utilization rate is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

FIG. 1 is a diagram of codebook-based transmission in the related art of the present disclosure;

FIG. 2 is a diagram of non-codebook based transmission in the related art of the present disclosure;

FIG. 3 is a flow chart of a signal configuration method according to an embodiment of the disclosure;

FIG. 4 is a flow chart of a signal indication method according to an embodiment of the present disclosure;

FIG. 5 is a flow chart of another signal configuration method according to an embodiment of the present disclosure;

FIG. 6 is a block diagram of a signal configuration apparatus according to an embodiment of the present disclosure;

fig. 7 is a block diagram of a signal indication apparatus according to an embodiment of the present disclosure.

Detailed Description

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example 1

In the present embodiment, a signal configuration method is provided, and fig. 3 is a flowchart of a signal configuration method according to an embodiment of the present disclosure, and as shown in fig. 3, the flowchart includes the following steps:

step S302, the waveform indication information and at least one of the following parameter information are jointly coded: rank Indication (RI), precoding Indication PMI, Reference sounding pilot Indication SRI, Demodulation pilot Signal (DMRS) configuration, Phase noise pilot Signal (Phase Tracking pilot Signal) configuration, Modulation Coding Scheme (MCS) configuration, power control parameter, and resource allocation Indication parameter;

step S304, the information after the joint coding is sent.

Through the steps, the technical problem of overlarge overhead of transmitting the waveform indication information in the related technology is solved by jointly encoding the waveform indication information and other parameter information, and the resource utilization rate is improved.

Alternatively, the main body of the above steps may be a base station, a terminal, etc., but is not limited thereto.

Optionally, the joint encoding is performed using one of the following rules:

at least two different codewords are respectively combined with different waveform types or waveform type sets;

at least two different rank or layer values are respectively combined with different waveform types or waveform type sets;

at least two different resource regions respectively associated with different waveform types or sets of waveform types;

at least two different channel sounding reference signal resources are associated with different waveform types or sets of waveform types, respectively.

In this embodiment, the waveform indication information may be used to indicate a waveform of at least one of: DFT-S-OFDM, CP-OFDM.

In the present embodiment, a signal indication method is provided, and fig. 4 is a flowchart of a signal indication method according to an embodiment of the present disclosure, as shown in fig. 4, the flowchart includes the following steps:

step S402, determining the waveform after the joint coding;

step S404, implicitly indicating the jointly encoded waveform.

Optionally, the implicit indication of the jointly encoded waveform may be, but is not limited to:

carrying out implicit indication on the waveform after the joint coding by using a Downlink Control Information format (DCI);

carrying out implicit indication on the waveform after the joint coding by using a demodulation pilot frequency sequence of a control channel;

carrying out implicit indication on the waveform after the joint coding by using a scrambling mode of DCI;

and implicitly indicating the waveform after the joint coding by using the transmission position of the DCI.

In the present embodiment, another signal indication method is provided, and fig. 5 is a flowchart of another signal configuration method according to an embodiment of the present disclosure, and as shown in fig. 5, the flowchart includes the following steps:

step S502, the transmission mode indication information and at least one of the following parameter information are jointly coded: rank indication RI, waveform, reference detection pilot indication SRI, demodulation pilot DMRS configuration, phase noise pilot PTRS configuration, modulation coding mode MCS configuration, power control parameter and resource allocation indication parameter;

step S504, the information after the joint coding is sent.

Optionally, the jointly encoded information includes one of: m + precoding indicates the joint coding state of the PMI, and M + has no joint coding state of the PMI, wherein M is at least one of parameter information.

Optionally, joint encoding is performed using one of the following rules:

Optionally, the transmission mode indication information is used to indicate at least one of the following: codebook-based transmission CB based (presence of PMI), Non-codebook-based transmission Non-CB based (absence of PMI), SRI number.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present disclosure.

Example 2

In this embodiment, a signal configuration and indication device is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device that has been already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 6 is a block diagram of a signal configuration apparatus according to an embodiment of the present disclosure, as shown in fig. 6, the apparatus including:

an encoding module 60, configured to jointly encode the waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

and a sending module 62, configured to send the jointly encoded information.

Fig. 7 is a block diagram of a signal indicating apparatus according to an embodiment of the present disclosure, as shown in fig. 7, the apparatus including:

a determining module 70 for determining a jointly encoded waveform;

and an indication module 72, configured to implicitly indicate the jointly encoded waveform.

The disclosed embodiment also provides another signal configuration device, which includes: an encoding module, configured to jointly encode the transmission mode indication information and at least one of the following parameter information: rank indication RI, waveform, reference detection pilot indication SRI, demodulation pilot DMRS configuration, phase noise pilot PTRS configuration, modulation coding mode MCS configuration, power control parameter and resource allocation indication parameter; and the sending module is used for sending the information after the joint coding.

In this embodiment, joint encoding is performed using one of the following rules:

at least two different code words exist, and are respectively combined with different waveform types or waveform type sets;

at least two different rank or layer values are associated with different waveform types or waveform type sets respectively;

at least two different resource areas exist, which are respectively combined with different waveform types or waveform type sets;

there are at least two different channel sounding reference signal, SRS, resources, which are associated with different waveform types or sets of waveform types, respectively.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 3

This embodiment is an alternative embodiment according to the present disclosure, and is used to describe the present application in detail with reference to the specific implementation manners:

in the joint coding technique of this embodiment, dynamic switching of Waveform Indication (WI) mainly utilizes the following characteristics to reduce overhead:

different optional Waveform type sets can be considered to be supported for different codewords, respectively. For example, some codewords may destroy the peak-to-average ratio, and the peak-to-average ratio cannot be controlled even by DFT-S-OFDM, and thus cannot be combined with the DFT-S-OFDM

And respectively considering the supported optional Waveform type sets aiming at different Rank/layer values.

Different optional sets of Waveform types can be considered separately for different resource zones. The same waveform is adopted to improve the performance of uplink MU-MIMO (Multiple-User Multiple Input Multiple Output), so that the resource area can be divided, and then the corresponding waveform types are respectively set.

The support of the optional Waveform type set can be considered separately for different SRS resources. Some SRS transmission itself has been precoded, peak-to-average ratio may be problematic, and peak-to-average ratio cannot be controlled even with DFT-S-OFDM and thus cannot be combined therewith

The Waveform type set includes "DFT-S-OFDM", "CP-OFDM and DFT-S-OFDM"

Example RI and PMI indication are jointly coded with the Waveform indication as shown in Table 1:

TABLE 1

Because the high Rank condition is generally the cell center user with high signal-to-noise ratio, the peak-to-average ratio problem is not obvious, and the DFT-S-OFDM is not supported at the moment, and the performance loss is not obvious. In addition, in Rank1, code words 05-08 only support CP-OFDM, precoding corresponding to the part of code words destroys the peak-to-average ratio of the antenna, and even support DFT-S-OFDMA can not reduce the peak-to-average ratio well. In the above embodiment, the joint coding may be 32 states, and not only RI and PMI information but also legacy information may be known according to the state bits. By the joint coding mode, joint conditions which are difficult to occur in practical conditions are avoided, and expenses can be effectively reduced. In this embodiment, the independent coding overhead: 5 bits (RI + PMI) +1bit (WI), and the joint coding overhead is 5 bits (RI + PMI + WI). WI denotes the waveform indication.

Still other examples are as follows: DFT-S-OFDM and CP-OFDM correspond to different Rank1 code words and have no intersection. Also the case of partial intersections can be considered. For example, codewords 01-02 correspond to two types of waveforms, codewords 03-04 correspond to DFT-S-OFDM, and codewords 05-06 correspond to CP-OFDM, as shown in Table 2:

TABLE 2

Rank/layer 1	Rank/layer 2
		Codeword 01, DFT-S-OFDM	Codeword 11, CP-OFDM
Codeword 02, DFT-S-OFDM	Codeword 12, CP-OFDM
		Codeword 03, DFT-S-OFDM	Codeword 13, CP-OFDM
Codeword 04, DFT-S-OFDM	Codeword 14, CP-OFDM
		Codeword 05, CP-OFDM	Codeword 15, CP-OFDM
Codeword 06, CP-OFDM	Codeword 16, CP-OFDM
		Codeword 07, CP-OFDM	Codeword 17, CP-OFDM
Codeword 08, CP-OFDM	Codeword 18, CP-OFDM

Waveform may also be jointly coded with SRI as shown in table 3:

TABLE 3

Rank/layer 1
	SRI＝01，DFT-S-OFDM
SRI＝02，DFT-S-OFDM
	SRI＝03，CP-OFDM
SRI＝04，CP-OFDM

The wavelet can also be jointly coded with the indication of the resource region, or jointly coded with the configuration of the DMRS and/or PTRS, or jointly coded with the MCS, and jointly coded with the power control indication parameter.

It should be noted that the above manners may be combined, and there are various other considerations for the specific manner of joint coding, and how to perform joint coding may be determined according to the specific network environment and the configuration of the terminal. The number of coded bits is also not limited to a fixed number of coded bits. The overhead is reduced due to the limitation of the pertinence of some joint situations which do not occur frequently or joint situations which are not needed, but the actual performance is not greatly influenced. The method can also effectively reduce the complexity of the terminal

The Non-CB based transmission and the CB based transmission dynamically switch to reduce the overhead mainly by using the following characteristics:

jointly encoded with PMI:

and making the Non-CB based into a precoding-free indication state. Indicating that precoding need not be used at this time. The precoding may also be understood as a unit array or the first r columns of a unit array. r is the value of layer/rank, as shown in Table 4:

TABLE 4

Rank/layer 1	Rank/layer 2
		Code word 01	Code word 11
Code word 02	Code word 12
		Code word 03	No precoding indication required
Code word 04
		No precoding indication required

The mode does not need additional 1bit to indicate which type of transmission is, and dynamic switching is realized under the condition of not increasing overhead (3 bit). The no codeword indication may not distinguish between layer1 or layer 2. The default layer is now the number of SRS ports.

Joint coding with SRI

If there is an indication of SRI, the joint coding can be further performed as shown in table 5:

TABLE 5

SRI＝01，CB based
	SRI＝02，CB based
SRI＝03，Non-CB based
	SRI＝04，Non-CB based

The SRI, TPMI, CB/Non-CB indications may also be jointly coded together as shown in Table 6:

TABLE 6

SRI＝1	SRI＝2	SRI＝3	SRI＝4
				Code word 01	Code word 01	Code word 01	Code word 01
Code word 02	Code word 02	Code word 02	Code word 02
				Code word 03	No precoding indication required	Code word 03	No precoding indication required
Code word 04		Code word 04
				No precoding indication required		No precoding indication required

Here, there are a total of 4 bits, while if coded independently, 2+2+1 ═ 5 bits are needed

Jointly encoded with resource indicator information, as shown in table 7:

TABLE 7

Resource region 1, CB based
	Resource region 2, Non-CB based

This reduces the 2-bit overhead to 1bit. Since resource region 1 is not suitable for Non-CB based transmission by itself, there is virtually no loss of flexibility.

It may also be coded jointly with other information, e.g., CB based where the TMPI is a combination of sub-bands.

Dynamic switching of the number of SRIs mainly utilizes the following characteristics to reduce overhead:

the combination of multiple SRIs is limited by joint coding between different SRI numbers, as shown in table 8:

TABLE 8

1 SIR	2 SRI	3 SRI
			SRI＝1	SRI＝1,3	SRI＝1,3,5
SRI＝2	SRI＝1,4	SRI＝2,4,6
			SRI＝3	SRI＝2,3
SRI＝4	SRI＝2,4

The situation that the SRI is 1,2, 3,4, 2,3,5, 1,4,6 and the like is avoided in the mode, and the overhead is reduced. In practice, the base station has previously determined that the interference is large in these situations, and the selection is generally unlikely to be performed, so that the performance is not affected. If SRS resource is more, overhead section appointments are more obvious.

In the implicit indication manner of this embodiment, the following manners may be used to indicate Waveform, including:

DCI format, demodulation pilot frequency sequence of control channel and scrambling mode of DCI; a transmission location of the DCI.

DCI format correspondence table 9, DCI scrambling scheme correspondence table 10:

TABLE 9

DCI Format	Waveform
		A	DFT-S-OFDM
B	CP-OFDM

Watch 10

DCI scrambling mode	Waveform
		Scrambling code 1	DFT-S-OFDM
Scrambling code 2	CP-OFDM

Whether Non CB or CB transmission may be indicated in some ways, including:

DCI format, demodulation pilot frequency sequence of control channel and scrambling mode of DCI; DCI transmission position, DCI format correspondence table 11, DCI scrambling scheme correspondence table 12:

TABLE 11

DCI Format	Waveform
		C	Non CB
B	CB

TABLE 12

DCI scrambling mode	Waveform
		Scrambling code 1	Non CB
Scrambling code 2	CB

The scheme has the advantages of saving the overhead and improving the utilization rate of the signaling overhead.

Example 4

Embodiments of the present disclosure also provide a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

s1, the waveform indication information and at least one of the following parameter information are jointly coded: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

and S2, sending the information after the joint coding.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium:

and sending the jointly coded information.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present disclosure described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. As such, the present disclosure is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A method of signal configuration, comprising:

and sending the jointly coded information.

2. The method of claim 1, wherein joint encoding is performed using one of the following rules:

3. The method according to claim 1 or 2, wherein the waveform indication information is used for indicating a waveform of at least one of: single carrier frequency division multiple access, orthogonal frequency division multiple access.

4. A method of signaling, comprising:

determining a jointly coded waveform, wherein the jointly coded waveform is obtained by jointly coding waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

indicating the jointly coded waveform.

5. The method of claim 4, wherein indicating the jointly encoded waveform comprises at least one of:

indicating the waveform after the joint coding by using a downlink control information format;

indicating the waveform after the joint coding by using a demodulation pilot frequency sequence of a control channel;

indicating the waveform after the joint coding by using a scrambling mode of downlink control information;

and indicating the waveform after the joint coding by using the transmission position of the downlink control information.

6. A signal configuration apparatus, comprising:

an encoding module, configured to jointly encode the waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

7. A signal indicating device, comprising:

a determining module, configured to determine a jointly encoded waveform, where the jointly encoded waveform is obtained by jointly encoding waveform indication information and at least one of the following parameter information: rank indication, precoding indication, reference detection pilot frequency indication, demodulation pilot frequency configuration, phase noise pilot frequency configuration, modulation coding mode configuration, power control parameters and resource allocation indication parameters;

and the indicating module is used for indicating the waveform after the joint coding.

8. A storage medium, comprising a stored program, wherein the program when executed performs the method of any one of claims 1 to 5.

9. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 5.