CN116964995A

CN116964995A - Communication method, device and storage medium

Info

Publication number: CN116964995A
Application number: CN202380009457.6A
Authority: CN
Inventors: 乔雪梅; 高雪媛
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-10-27

Abstract

The disclosure provides a communication method, a device and a storage medium, wherein the method comprises the following steps: determining resources occupied by spectrum Spreading (SE); determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE; and based on the modulation symbol carried by the SE resource, transmitting a Physical Uplink Shared Channel (PUSCH) by using an SE mode. According to the scheme provided by the disclosure, the PUSCH transmission performance can be improved on the basis of reducing the PAPR.

Description

Communication method, device and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a communication method, a device and a storage medium.

Background

The physical uplink shared channel (Physica l Uplink Shared Channel, PUSCH) transmission based on frequency domain shaping (Frequency Domain Spectrum Shaping, FDSS) is a transmission scheme capable of reducing peak-to-average ratio (Peak Average Power Ratio, PAPR). However, how to improve PUSCH transmission performance on the basis of PAPR reduction is a problem to be solved at present.

Disclosure of Invention

The communication method, the device and the storage medium provided by the disclosure can improve the PUSCH transmission performance on the basis of reducing the PAPR.

In a first aspect, an embodiment of the present disclosure provides a communication method, performed by a terminal, the method including:

determining resources occupied by the spectrum spread (Spectrum extension, SE);

determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE;

and transmitting a channel PUSCH in an SE mode based on the modulation symbol carried by the SE resource.

In some embodiments, the time domain granularity is one symbol (symbol).

In some embodiments, the determining, based on the time domain granularity and the resources occupied by the SE, a modulation symbol carried by the SE resource includes:

and determining the number of the modulation symbols repeatedly transmitted at the two ends of the frequency domain of each symbol based on the number of Resource Blocks (RBs) occupied by the SE.

In some embodiments, the method further comprises:

based on the type of SE mode, determining the modulation symbol repeatedly transmitted at both ends of the frequency domain of each symbol.

In some embodiments, the type of SE mode includes one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the time domain granularity is one slot (slot).

And determining the number of the modulation symbols repeatedly transmitted at two ends of a discrete Fourier transform (Discrete Fourier Transform, DFT) output symbol sequence based on the number of RBs occupied by the SE and the number of symbols actually used for bearing data in the PUSCH.

In some embodiments, the method further comprises:

based on the type of the SE mode, the modulation symbols repeatedly transmitted at two ends of the modulation symbol sequence output by the DFT are determined.

In some embodiments, the SE performs SE on the uplink resource in slot units, including:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the determining the resources occupied by the SE includes:

acquiring configuration information, wherein the configuration information comprises information of resources occupied by SE;

acquiring configuration information, wherein the configuration information comprises the proportion of SE resources to resources allocated by a PUSCH; and determining the resources occupied by the SE based on the ratio of the SE resources to the resources allocated by the PUSCH and the resources allocated by the PUSCH.

In some embodiments, the method further comprises:

acquiring downlink control signaling, wherein indication information in the downlink control signaling is used for indicating the number of RBs occupied by the SE resources, or the indication information is used for indicating the proportion of the SE resources to resources allocated by a PUSCH;

And determining the number of RBs occupied by the resources occupied by the SE based on the indication information and a pre-configured table.

In some embodiments, the preconfigured table is a new table or an existing table; the existing tables may include Transmission Power Control (TPC), modulation and coding strategy (Modulationand Coding Scheme, MCS), or Time Domain Resource Allocation (TDRA).

In some embodiments, the downlink control signaling includes downlink control information (Downlink Control Information, DCI) signaling or medium access control sublayer control element (MAC Control Element, MAC CE) signaling.

In some embodiments, the downlink control signaling is DCI, and the indication information may be a newly added field, a reserved field, or an existing field in the DCI; the existing fields may include a TPC field, an MCS field, a TDRA field, or a frequency domain resource allocation (Frequency Do main Resource Allocation, FDRA) field.

In some embodiments, the method further comprises:

and carrying out rate matching on the PUSCH based on the number of RBs occupied by the in-band resources for carrying data.

In some embodiments, the method further comprises:

And performing resource mapping on the PUSCH in a frequency-domain-first-time-domain mode based on the resources occupied by the SE and the in-band resources used for bearing data.

In a second aspect, embodiments of the present disclosure provide a communication method, performed by a base station, the method comprising:

receiving a PUSCH transmitted by a terminal in a SE mode; the number of modulation symbols carried by the SE resources is determined based on time domain granularity and resources occupied by the SE.

In some embodiments, the temporal granularity is one symbol.

In some embodiments, the number of modulation symbols repeatedly transmitted at both ends of the frequency domain of each symbol is determined based on the number of RBs occupied by the SE.

In some embodiments, the number of modulation symbols repeatedly transmitted across the frequency domain for each symbol is determined based on the SE type.

In some embodiments, the SE type includes one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the time domain granularity is one slot.

In some embodiments, the number of modulation symbols inserted into the repeated transmission at both ends of the DFT output sequence is determined based on the number of RBs occupied by the SE and the number of symbols actually used for carrying data in the PUSCH.

In some embodiments, the number of modulation symbols repeatedly transmitted across the DFT output sequence is determined based on the SE type.

In some embodiments, the SE type includes one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the method further comprises:

transmitting configuration information; wherein, the liquid crystal display device comprises a liquid crystal display device,

the configuration information comprises information of resources occupied by SE;

or alternatively, the process may be performed,

the configuration information includes a ratio of SE resources to PUSCH allocated resources.

In some embodiments, the method further comprises:

transmitting a downlink control signaling, wherein indication information in the downlink control signaling is used for indicating the number of RBs occupied by the SE resources, or the indication information is used for indicating the proportion of the SE resources to resources allocated by a PUSCH; the indication information is used for the terminal to determine the number of RBs occupied by resources occupied by the SE based on the indication information and a pre-configured table.

In some embodiments, the preconfigured table is a new table or an existing table; the existing table may include TPC, MCS, or TDRA.

In some embodiments, the downlink control signaling is DCI signaling or MAC CE signaling.

In some embodiments, the downlink control signaling is DCI, and the indication information may be a newly added field, a reserved field, or an existing field in the DCI; the existing field may include a TPC field, an MCS field, a TDRA field, or an FDRA field.

In some embodiments, the rate matching of the PUSCH is based on the number of RBs occupied by in-band resources for carrying data.

In some embodiments, the method further comprises:

the PUSCH is inverse discrete fourier transformed (Inver SE Discrete Fourier Transform, IDFT) based on the SE occupied resources and the in-band resources for carrying data.

In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

a processing unit, configured to determine resources occupied by the SE; determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE;

and the sending unit is used for sending the PUSCH by using the SE mode based on the modulation symbol carried by the SE resource.

In a fifth aspect, embodiments of the present disclosure provide a base station, including:

a receiving unit, configured to receive a PUSCH transmitted by a terminal through an SE manner; the number of modulation symbols carried by the SE resources is determined based on time domain granularity and resources occupied by the SE.

In a sixth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first or second aspect described above.

In a seventh aspect, embodiments of the present disclosure provide a communication device comprising a processor and interface circuitry, wherein the interface circuitry is to receive code instructions and transmit to the processor; a processor for executing code instructions to perform the method of the first or second aspect described above.

In an eighth aspect, an embodiment of the present invention provides a computer readable storage medium storing instructions for use by a network device as described above, which when executed cause a terminal device to perform the method of the first or second aspect described above.

In a ninth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first or second aspect described above.

In a tenth aspect, the present disclosure provides a communication system, including: a terminal and a base station, wherein,

The terminal is used for executing the method of the first aspect;

the base station is for performing the method of the second aspect.

In summary, the communication method, the device and the storage medium provided by the embodiments of the present disclosure, the terminal determines resources occupied by SE; determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE; and sending the PUSCH by using an SE mode based on the modulation symbol carried by the SE resource. According to the scheme provided by the embodiment of the disclosure, through the behavior of the appointed base station and the terminal, the terminal can repeatedly send the modulation symbols by using an extra part of RBs, and the base station can also acquire the related information of the SE, so that the related information of the SE can be utilized to carry out IDFT and MRC combination on the received PUSCH, ambiguity of the base station on the treatment of the PUSCH is avoided, the application of the SE in PUSCH transmission based on FDSS is realized, and the PUSCH transmission performance is improved on the basis of reducing the PAPR.

Drawings

The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure;

FIG. 2 is a flow chart of a communication method according to an embodiment of the present disclosure;

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

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

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

FIG. 6 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 7 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 8 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 9 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 10 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 11 is a flow chart of a method for determining resources occupied by a SE according to one embodiment of the present disclosure;

FIG. 12 is a flow chart of a method for determining resources occupied by a SE according to one embodiment of the present disclosure;

FIG. 13 is a flow chart of a method for determining resources occupied by a SE according to one embodiment of the present disclosure;

FIG. 14 is a flow chart of a method for determining resources occupied by a SE according to one embodiment of the present disclosure;

FIG. 15 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 16 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG. 17 is a flow chart of a communication method according to an embodiment of the present disclosure;

fig. 18 is a flow chart of a communication method based on FDSS according to an embodiment of the present disclosure

Fig. 19 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

fig. 20 is a schematic structural diagram of a communication device according to an embodiment of the disclosure;

fig. 21 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

fig. 22 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

The basic idea of PUSCH transmission based on FDSS is that discrete time domain data is converted into discrete frequency domain data after DFT processing, then a designed Spectrum Shaping (spectral Shaping) sequence is dot multiplied, and then a time domain signal is obtained through FDSS and inverse fourier transform (Inverse Discrete Fourier Transmission, IDFT), so that the PAPR can be effectively reduced. However, it is not clear how to improve PUSCH transmission performance while reducing PAPR.

The SE technique is a technique of spectrum spreading an uplink channel using an additional part of RBs, on which repeated data symbols can be transmitted, and MRC combining can be performed using these repeated data contents after the base station receives the PUSCH, thereby improving transmission performance.

Based on this, in each implementation of the disclosure, by specifying the behaviors of the base station and the terminal, the terminal can repeatedly send the modulation symbol by using an additional part of RBs, and the base station can also obtain the related information of SE, so that IDFT and MRC combination can be performed on the received PUSCH by using the related information of SE, thereby improving PUSCH transmission performance on the basis of reducing PAPR.

Fig. 1 is an architecture diagram of a communication system provided in an embodiment of the present disclosure. As shown in fig. 1, a communication system 100 includes a terminal 101 and a base station 102. The number and form of the devices shown in fig. 1 are only for example and not limiting the embodiments of the present application, and two or more base stations and two or more terminals 101 may be included in practical applications. The communication system shown in fig. 1 is illustrated as including a terminal 101 and a base station 102.

In some embodiments, the technical solutions of the embodiments of the present disclosure may be applied to various communication systems. For example: a long term evolution (long ter m evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

In some embodiments, the terminal 101 is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal 101 may also be referred to as a terminal device (terminal), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal 101 may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (aug mented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. Embodiments of the present disclosure are not limited to the specific technology and specific device configuration employed by the terminal 101.

In some embodiments, the base station may be an evolved NodeB (eNB), a transmission and reception point (tr ansmission reception point or transmit receive point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiments of the present disclosure do not limit the specific technology and specific device configuration adopted by the base station. The base station provided by the embodiments of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the network device, for example, the base station, where functions of part of the protocol layers are placed in the CU for centralized control, and functions of part or all of the protocol layers are distributed in the DU, and the CU centrally controls the DU.

Based on the above architecture, the embodiments of the present disclosure provide a communication method. As shown in fig. 2, the method includes:

step 201: the terminal determines resources occupied by the SE.

In some embodiments, the base station may directly configure resources occupied by SE for the terminal, or may configure a ratio of the SE resources to resources allocated by PUSCH for the terminal, so that the terminal may determine resources occupied by SE based on the ratio of the SE resources to the resources allocated by PUSCH and the resources allocated by PUSCH, or the base station configures a table of resources occupied by SE for the terminal, or configures the table of resource occupied by SE, or further indicates a specific resource occupied by SE or a ratio of resources occupied by SE by carrying a table index through dynamic downlink control signaling.

In some embodiments, the table of resources occupied and the table of proportion of resources occupied by the SE may also be agreed by the communication protocol.

In some embodiments, the resources occupied by the SE may also be commonly agreed by the base station and the terminal.

In some embodiments, the base station may also send, through a downlink control signaling, indication information to the terminal, where the indication information is used to indicate resources occupied by the SE, or is used to indicate a ratio of the SE resources to resources allocated by the PUSCH, so that the terminal may determine, according to the indication information and a preconfigured table, the number of RBs occupied by the SE resources. The indication information may also directly indicate the resource occupied by the SE or the ratio of the SE resource to the resource allocated by the PUSCH, for example, the indication information includes information of the resource occupied by the SE or information of the ratio of the SE resource to the resource allocated by the PUSCH, without using a table index to determine the number of RBs occupied by the SE resource from a pre-configured table.

In some embodiments, a mapping relationship between SE resources and PUSCH allocation resources and/or modulation modes may be preset in the protocol. For example, it is agreed in the protocol that when the modulation mode is Pi/2-BPSK and/or the number of PUSCH allocation resources is between N1 and N2, the number of SE resources is P1, or the ratio between SE resources and PUSCH resources is A1; when the modulation mode is Pi/2-BPSK and/or the number of PUS CH allocation resources is between N2 and N3, the number of SE resources is P2 or the ratio between the SE resources and the PUSCH resources is A2; or when the modulation mode is QPSK and/or the number of the PUSCH allocation resources is between M1 and M2, the number of the SE resources is K1, or the ratio between the SE resources and the PUSCH resources is B1; or when the modulation mode is QPSK and/or the number of PUSC H allocation resources is between M2 and M3, the number of SE resources is K2 or the ratio between the SE resources and the PUSCH resources is B2. And the terminal implicitly determines the number of resources occupied by the SE according to the number of the PUSCH allocation resources indicated by the base station, the modulation mode and the mapping relation.

One possible way is that the number of PUSCH allocation resources includes SE resources and inbred resources, that is, SE resources+inbred resources=the number of PUSCH allocation resources, and the terminal performs rate matching according to the inbred resources, and performs resource mapping according to the se+inbred resources.

Another possible way is that the PUSCH allocation resource is an inband resource, and does not include an SE resource, and the terminal performs rate matching according to the inband resource, and performs resource mapping according to the se+inband resource.

In some embodiments, the downlink control signaling includes DCI signaling or MAC CE signaling.

In some embodiments, after the terminal determines the resources occupied by the SE, the determined resources occupied by the SE may also be sent to the base station.

Step 202: and the terminal determines a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

In some embodiments, the time domain granularity is one symbol (symbol), and may be one slot (slot).

In some embodiments, when the time domain granularity is one symbol, the modulation symbols repeatedly transmitted at two ends of the frequency domain of each symbol may be determined based on the RB number occupied by the SE.

In some embodiments, when the time domain granularity is one symbol, the modulation symbols repeatedly transmitted at both ends of the frequency domain of each symbol may be determined based on the type of SE mode.

In some embodiments, when the time domain granularity is one slot, the modulation symbols repeatedly transmitted at two ends of the modulation symbol sequence output by the DFT may be determined based on the number of RBs occupied by the SE and the number of symbol actually used for carrying data in the PUSCH.

In some embodiments, the modulation symbols repeatedly transmitted across the sequence of modulation symbols of the DFT output may be determined based on the type of SE mode.

In some embodiments, the type of SE mode includes one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

Step 203: and the terminal sends the PUSCH in an SE mode based on the modulation symbol borne by the SE resource.

In some embodiments, the PUSCH is transmitted in an SE manner, that is, the spectrum of the uplink resource is extended in an SE manner, and the PUSCH is transmitted by using the extended uplink resource.

In some embodiments, the PUSCH may be rate matched based on the number of RBs occupied by in-band resources used to carry data. And the in-band resource is a PUSCH frequency domain resource allocated for the base station and does not comprise an RB resource occupied by SE.

In some embodiments, the resource mapping may be performed on the PUSCH in a frequency-first-frequency-then-time-domain manner based on the resources occupied by the SE and the in-band resources used to carry the data modulation symbols.

Step 204: and the base station receives the PUSCH sent by the terminal.

In some embodiments, the base station may perform IDFT processing on the received PUSCH based on the resources occupied by the SE.

In summary, according to the communication method provided by the embodiment of the disclosure, by specifying the behaviors of the base station and the terminal, the terminal can repeatedly send the modulation symbol by using an extra part of RBs, and the base station can also acquire the related information of the SE, so that IDFT and MRC combination can be performed on the received P USCH by using the related information of the SE, ambiguity of the base station in PUSCH processing is avoided, application of the SE in PUSCH transmission based on FDSS is realized, and PUSCH transmission performance is improved on the basis of reducing PAPR.

Fig. 3 is a schematic diagram of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 3, the method includes:

step 301: and determining resources occupied by the SE.

In some embodiments, the base station may directly configure resources occupied by SE for the terminal, or may configure a ratio of the resources occupied by SE to the resources allocated by PUSCH for the terminal, so that the terminal may determine the resources occupied by SE based on the ratio of the resources allocated by SE to the resources allocated by PUSCH and the resources allocated by PUSCH, or the base station configures a table of resources occupied by SE for the terminal, or configures the table of resource occupied by SE, further indicates a specific resource occupied by SE or a ratio of resources occupied by SE by dynamic downlink control signaling carrying a table index, or configures a table of resources occupied by SE for the terminal, or configures the table of resource occupied by SE, further indicates a specific resource occupied by SE or a ratio of resources occupied by SE by dynamic downlink control signaling carrying a table index.

In some embodiments, the table of resources occupied by the SE and the table of proportion of resources occupied may also be agreed by the communication protocol.

In some embodiments, the base station may configure the resources occupied by the SE for the terminal through radio resource control (Radio Resource Control, RRC) signaling.

In some embodiments, the resources occupied by the SE may also be commonly agreed by the base station and the terminal; for example, the base station and the terminal agree on resource-related parameters occupied by SE. The ratio of the SE resource to the PUSCH allocated resource may be commonly agreed by the base station and the terminal.

In some embodiments, the base station may also send, through a downlink control signaling, indication information to the terminal, where the indication information is used to indicate a location of a resource occupied by the SE or a ratio of the SE resource to a resource allocated by the PUSCH in a resource allocation table, so that the terminal may determine, according to the indication information and a preconfigured table, the number of RBs occupied by the SE resource.

In some embodiments, the resources occupied by the SE or the ratio of the SE resources to the resources allocated by the PUSCH may be written into an existing table of the downlink control signaling, or may be written into a new list newly added to the downlink control signaling; for example, when configuring the resource allocation table, the resources occupied by the SE or the ratio of the SE resources to the resources allocated by the PUSCH may be configured in or written into a table such as TPC, MCS, TDRA, or a new list may be configured or defined, and the resources occupied by the SE or the ratio of the SE resources to the resources allocated by the PUSCH may be written into the new table, and then the location of the resources occupied by the SE or the ratio of the SE resources to the resources allocated by the PUSCH in the resource allocation table may be indicated by fields such as TPC, MCS, TDRA, FDRA in the DCI signaling, or fields such as a new field and a reserved field in the DCI signaling.

In some embodiments, the number of resources occupied by SE may also be directly indicated by FDRA, the new field, the reserved field, for example, 10 RBs.

In some embodiments, the resources occupied by the SE may be RBs occupied by the SE.

Step 302: and determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

In some embodiments, the time domain granularity is one symbol, and may also be one slot.

In some embodiments, when the time domain granularity is one symbol, the number of modulation symbols repeatedly transmitted at two ends of the frequency domain of each symbol may be determined based on the number of RBs occupied by the SE.

Illustratively, the number of modulation symbols repeatedly transmitted across the frequency domain of each symbol may be determined by the following formula:

S′＝S*12/2；(1)

wherein S' represents the number of modulation symbols repeatedly transmitted by each of two ends of the frequency domain of each symbol, and S represents the number of RBs occupied by SE.

In some embodiments, for the time domain granularity of one symbol, the modulation symbols repeatedly transmitted at both ends of the frequency domain of each symbol may be determined based on the type of SE mode.

In some embodiments, for the time domain granularity of one symbol, the type of SE approach is one of symmetric expansion, cyclic expansion, symmetric, and cyclic expansion.

In some embodiments, as shown in fig. 3a, for the time domain granularity being one symbol, when the SE mode is symmetric expansion, for each symbol, a first modulation symbol may be inserted at the tail of the frequency domain resource of the symbol, and a second modulation symbol may be inserted at the head of the frequency domain resource of the symbol; the first modulation symbol is the first S1 modulation symbols in all modulation symbols carried on the one symbol duration, and the second modulation symbol is the last S1 modulation symbols in all modulation symbols carried on the one symbol duration; s1 represents the number of modulation symbols repeatedly transmitted at any one of two ends of the symbol; the S1 may be an integer, for example S1 may be S'.

For example, the number of available symbol is determined, that is, the number of symbol capable of carrying data except for the symbol allocated for the PUSCH in one slot and occupied by the demodulation reference signal (De modulation Reference Signal, DMRS), when the number of symbol is N, the number of modulation symbols of each layer output by DFT is M, and the number of modulation symbols carried on one symbol duration (symbol duration) is M/N; for each modulation symbol sequence carried by the available symbol, the S1 modulation symbols before replication are placed at the tail of the modulation symbol sequence carried by the symbol, and the S1 modulation symbols after replication are placed at the head of the modulation symbol sequence carried by the symbol. And the modulation symbols on the N symbols are re-concatenated to reconstruct the transmission sequence.

In some embodiments, for the time domain granularity of one symbol, when the SE mode is cyclic extension, the first S2 modulation symbols in the modulation symbol sequence carried by the S ymbol may be copied and inserted into the sequence tail. Wherein S2 is the number of resource units (ResourceElement, RE) occupied by SE.

Illustratively, when the SE approach is cyclic extension, the transmission sequence may be represented by the following formula:

X ^(se) ＝{X[0]，...，X[N _data -1]，X[0]，...，X[N _e -1]}；(2)

wherein X is ^(se) Representing the number of modulation symbols carried on one symbol after cyclic extension, X0]Representing the first modulation symbol, X [ N ], in a sequence of modulation symbols carried on a symbol prior to cyclic extension _data -1]Representing the last modulation symbol, X [ N ], in a sequence of modulation symbols carried on a symbol prior to cyclic extension _e -1]Representing the last symbol in the modulation symbol sequence carried on one symbol after cyclic extension.

In some embodiments, for the time domain granularity of one symbol, when the SE scheme is cyclic and symmetric expansion, as shown in fig. 3b, the first S2 modulation symbols in the modulation symbol sequence carried by the symbol may be copied and inserted into the tail of the sequence to obtain a first sequence, and the third modulation symbol at the head of the first sequence may be copied and inserted into the tail of the first sequence; wherein the third modulation symbol is the first S1 symbols in the first sequence.

In some embodiments, when the time domain granularity is one slot, the number of modulation symbols repeatedly transmitted at two ends of the modulation symbol sequence output by DFT may be determined based on the number of RBs occupied by the SE and the number of symbol actually used for carrying data in PUSCH.

Illustratively, the number of modulation symbols repeatedly transmitted across the DFT output sequence may be determined by the following formula:

S′＝S*N*12/2；(3)

s' represents the number of modulation symbols repeatedly transmitted at two ends of the DFT output sequence, S represents the number of RBs occupied by SE, and N represents the number of symbols actually carrying data, namely the number of symbols capable of carrying data except for the symbols occupied by DMRS allocated for PUSCH in one slot.

In some embodiments, for a slot with a granularity in the time domain, the modulation symbols repeatedly transmitted at both ends of the modulation symbol sequence output by the DFT may be determined based on the type of SE mode.

In some embodiments, the type of SE approach is one of symmetric extension, cyclic extension, symmetric and cyclic extension for a time domain granularity of one slot.

In some embodiments, for a slot with a time domain granularity, when the SE mode is symmetric expansion, the first S3 modulation symbols of the DFT output sequence may be taken to be placed at the tail of the DFT output sequence, and the second S3 modulation symbols of the DFT output sequence may be taken to be placed at the head of the DFT sequence; wherein, S3 represents the number of modulation symbols repeatedly transmitted at both ends of the DFT sequence, and S3 is S' based on formula (3).

In some embodiments, for a slot with a time domain granularity, when the SE manner is cyclic extension, the first S4 modulation symbols of the DFT output sequence may be cyclically shifted to the symbol frequency domain resource tail. One possible way is that s4=sxn 12.

In some embodiments, for a slot with a granularity in the time domain, when the SE scheme is cyclic and symmetric, the first S4 modulation symbols of the DFT sequence may be copied and inserted into the end of the DFT output sequence, so as to obtain a second sequence, and the first S3 modulation symbols of the head of the second sequence may be copied and placed at the end of the second sequence.

In some embodiments, the SE mode may be agreed by the base station and the terminal, or may be determined according to the base station configuration, or may be determined according to the base station indication.

Step 303: and sending the PUSCH by using an SE mode based on the modulation symbol carried by the SE resource.

In some embodiments, the PUSCH is transmitted in SE, that is, the uplink resource is spread in spectrum, and the PUSCH is transmitted using the spread uplink resource.

In some embodiments, the PUSCH may be rate matched based on the number of RBs occupied by in-band resources used to carry data.

In some embodiments, the resource mapping may be performed on the PUSCH in a frequency-domain-first-time-domain manner based on the resources occupied by the SE and the in-band resources used to carry data. The in-band resources may also be referred to as an inband resource, and may also be referred to as an inband time-frequency resource.

Fig. 4 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 4, the method includes:

step 401: and determining resources occupied by the SE.

In some embodiments, the base station may configure the resources occupied by the SE for the terminal through RRC signaling.

In some embodiments, the resources occupied by the SE may be the number of RBs occupied by the SE.

Step 402: and determining the number of the modulation symbols repeatedly transmitted at the two ends of the frequency domain of each symbol based on the number of the RBs occupied by the SE.

It should be noted that in the embodiment of the present disclosure, the time domain granularity is one symbol.

In some embodiments, the modulation symbols repeatedly transmitted across the frequency domain for each symbol may be determined based on the type of SE mode.

In some embodiments, the type of SE approach is one of symmetric expansion, cyclic expansion, symmetric, and cyclic expansion.

In some embodiments, as shown in fig. 3a, when the SE mode is symmetric expansion, for each symbol, a first modulation symbol may be inserted at the tail of the frequency domain resource of the symbol, and a second modulation symbol may be inserted at the head of the frequency domain resource of the symbol; the first modulation symbol is the first S1 modulation symbols in all modulation symbols carried on the one symbol duration, and the second modulation symbol is the last S1 modulation symbols in all modulation symbols carried on the one symbol duration; s1 represents the number of modulation symbols repeatedly transmitted by any one of two ends of the symbol; the S1 may be an integer, for example S1 may be S'.

For example, the number of available symbols is determined, that is, the number of symbols capable of carrying data except for the symbol allocated for the PUSCH in one slot and occupied by the DMRS, when the number of symbols is N, the number of modulation symbols of each layer output by the DFT is M, and the number of modulation symbols carried on one symbol is M/N; for each modulation symbol sequence carried by the available symbol, the S1 modulation symbols before replication are placed at the tail of the modulation symbol sequence carried by the symbol, and the S1 modulation symbols after replication are placed at the head of the modulation symbol sequence carried by the symbol. And the modulation symbols on the N symbols are re-concatenated to reconstruct the transmission sequence.

In some embodiments, for the time domain granularity of one symbol, when the SE mode is cyclic extension, the first S2 modulation symbols in the modulation symbol sequence carried by the S ymbol may be copied and inserted into the sequence tail. Wherein S2 is the RE number occupied by SE.

In some embodiments, when the SE scheme is cyclic and symmetric expansion, as shown in fig. 3b, the first S2 modulation symbols in the modulation symbol sequence carried by symbol may be copied and inserted into the tail of the sequence to obtain a first sequence, and the third modulation symbol at the head of the first sequence is copied and inserted into the tail of the first sequence; wherein the third modulation symbol is the first S1 symbols in the first sequence.

Step 403: and based on the number of the modulation symbols repeatedly transmitted at the two ends of the frequency domain of each symbol, sending the PUSCH by using an SE mode.

Fig. 5 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 5, the method includes:

step 501: and determining resources occupied by the SE.

Step 502: and determining the number of the modulation symbols repeatedly transmitted at two ends of the modulation symbol sequence output by the DFT based on the number of RBs occupied by the SE and the number of symbols actually used for carrying data in the PUSCH.

It should be noted that the time domain granularity in the embodiments of the present disclosure is one slot.

In some embodiments, when the SE mode is symmetric expansion, the first S3 modulation symbols of the DFT output sequence may be taken to be placed at the end of the DFT output sequence, and the second S3 modulation symbols of the DFT output sequence may be taken to be placed at the head of the DFT sequence; wherein, S3 represents the number of modulation symbols repeatedly transmitted at both ends of the DFT sequence, and based on formula (3), S3 is S' in formula (3).

In some embodiments, when the SE mode is cyclic extension, the first S4 modulation symbols of the DFT output sequence may be cyclically shifted to the symbol frequency domain resource tail. One possible implementation is s4=sxn.

In some embodiments, when the SE scheme is cyclic and symmetric, the first S4 modulation symbols of the DFT sequence may be copied and inserted into the end of the DFT output sequence, to obtain a second sequence, and the first S3 modulation symbols of the second sequence may be taken to be placed at the end of the second sequence.

Step 503: and based on the number of the modulation symbols repeatedly transmitted at the two ends of the DFT output sequence, sending the PUSCH by using an SE mode.

Fig. 6 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 6, the method includes:

step 601: and determining resources occupied by the SE.

Step 602: and determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

In some embodiments, for a time domain granularity of one symbol, the modulation symbols repeatedly transmitted across the frequency domain of each symbol may be determined based on the type of SE mode.

In some embodiments, when the SE mode is symmetric expansion, the first S3 modulation symbols of the DFT output sequence may be taken to be placed at the end of the DFT output sequence, and the second S3 modulation symbols of the DFT output sequence may be taken to be placed at the head of the DFT sequence; wherein S2 represents the number of modulation symbols repeatedly transmitted at both ends of the DFT sequence, and S3 is S' in formula (3) based on formula (3).

Specifically, when the SE mode is symmetric expansion, the first S3 modulation symbols of the DFT output sequence may be taken to be placed at the tail of the DFT output sequence, and the second S3 modulation symbols of the DFT output sequence may be taken to be placed at the head of the DFT sequence; wherein, S3 represents the number of modulation symbols repeatedly transmitted at both ends of the DFT sequence, and based on formula (3), S3 is S' in formula (3).

Step 603: and transmitting the PUSCH by using a symmetrical expansion mode based on the modulation symbol carried by the SE resource.

Fig. 7 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 7, the method includes:

step 701: and determining resources occupied by the SE.

Step 702: and determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

Specifically, when the SE mode is cyclic extension, the first S2 modulation symbols of the DFT output sequence may be cyclically shifted to the symbol frequency domain resource tail.

Step 703: and transmitting the PUSCH by using a cyclic extension mode based on the modulation symbol carried by the SE resource.

Fig. 8 is a schematic diagram of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 8, the method includes:

step 801: and determining resources occupied by the SE.

Step 802: and determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

Specifically, when the SE scheme is cyclic and symmetric expansion, the first S4 modulation symbols of the DFT sequence may be copied and inserted into the end of the DFT output sequence, to obtain a second sequence, and the first S3 modulation symbols of the second sequence may be taken and placed at the end of the second sequence.

Step 803: and sending the PUSCH by using a cyclic and symmetrical expansion mode based on the modulation symbol carried by the SE resource.

Fig. 9 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 9, the method includes:

step 901: and determining resources occupied by the SE.

Step 902: and determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

In some embodiments, when the SE mode is symmetric expansion, the first S3 modulation symbols of the DFT output sequence may be taken to be placed at the end of the DFT output sequence, and the second S3 modulation symbols of the DFT output sequence may be taken to be placed at the head of the DFT sequence; wherein S3 represents the number of modulation symbols repeatedly transmitted at both ends of the DFT sequence. Based on the formula (3), S3 is S' in the formula (3).

Step 903: performing rate matching on the PUSCH based on the number of RBs occupied by in-band resources for carrying data;

step 904: and based on the modulation symbol carried by the SE resource, sending the PUSCH in an SE mode.

Fig. 10 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 10, the method includes:

step 1001: and determining resources occupied by the SE.

Step 1002: and determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE.

Step 1003: and performing resource mapping on the PU SCH in a frequency domain-first time domain-second time domain mode based on the resources occupied by the SE and the in-band resources for carrying data.

It should be noted that the in-band resource may also be referred to as an in-band resource, and may also be referred to as an in-band time-frequency resource.

Step 1004: and based on the modulation symbol carried by the SE resource, sending the PUSCH in an SE mode.

Fig. 11 is a flowchart of a method for determining resources occupied by a SE according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 11, the method includes:

step 1101: and acquiring configuration information, wherein the configuration information comprises information of resources occupied by SE.

In some embodiments, the base station may also send, through a downlink control signaling, indication information to the terminal, where the indication information is used to indicate resources occupied by the SE, so that the terminal may determine, according to the indication information and a preconfigured table, the number of RBs occupied by the SE resources.

In some embodiments, the resources occupied by the SE may be written into an existing table of the downlink control signaling, or may be written into a new list newly added to the downlink control signaling; for example, when configuring the resource allocation table, the resources occupied by the SE are configured in or written into a table such as TPC, MCS, TDRA, or a new list is configured or defined, and the resources occupied by the SE are written into the new table, and then the positions of the resources occupied by the SE or in the resource configuration table are indicated through fields such as TPC, MCS, TDRA, FDRA in the DCI signaling, or fields such as a new field and a reserved field in the DCI signaling.

Step 1102: and acquiring information of resources occupied by SE in the configuration information.

Fig. 12 is a flowchart of a method for determining resources occupied by a SE according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 12, the method includes:

step 1201: and acquiring configuration information, wherein the configuration information comprises the proportion of SE resources to resources allocated by the PUSCH.

In some embodiments, the base station may configure the ratio of the SE resources to PUSCH allocated resources for the terminal through RRC signaling.

In some embodiments, the ratio of the SE resource to the PUSCH allocated resource may also be commonly agreed by the base station and the terminal.

In some embodiments, the base station may also send, to the terminal, indication information through downlink control signaling, where the indication information is used to indicate a position of a ratio of the SE resource to the PUSCH allocated resource in a resource allocation table, so that the terminal may determine, according to the indication information and a preconfigured table, the ratio of the SE resource to the PUSCH allocated resource.

In some embodiments, the ratio of the SE resource to the resource allocated by the PUSCH may be written into an existing table of the downlink control signaling, or may be written into a new list newly added to the downlink control signaling; for example, when configuring the resource allocation table, the ratio of the SE resource to the PUSCH allocated resource may be configured in or written into a table such as TPC, MCS, TDRA, or a new list may be configured or defined, and the ratio of the SE resource to the PUSCH allocated resource is written into the new table, and then the position of the ratio of the SE resource to the PUSCH allocated resource in the resource allocation table is indicated by a field such as TPC, MCS, TDRA, FDRA in the DCI signaling, or a field such as a new field and a reserved field in the DCI signaling.

Step 1202: and determining the resources occupied by the SE based on the ratio of the SE resources to the resources allocated by the PUSCH and the resources allocated by the PUSCH.

Fig. 13 is a flowchart of a method for determining resources occupied by a SE according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 13, the method includes:

step 1301: and acquiring a downlink control signaling, wherein the indication information in the downlink control signaling is used for indicating the number of RBs occupied by the SE resources.

In some embodiments, when the downlink control signaling is DCI, the indication information may be a newly added field, a reserved field, or an existing field in the DCI; the existing field may include a TPC field, an MCS field, a TDRA field, or an FDRA field.

Step 1302: and determining the number of RBs occupied by the resources occupied by the SE based on the indication information and a pre-configured table.

Fig. 14 is a flowchart of a method for determining resources occupied by a SE according to an embodiment of the present disclosure, where the method is performed by a terminal. As shown in fig. 14, the method includes:

step 1401: and acquiring a downlink control signaling, wherein indication information in the downlink control signaling is used for indicating the proportion of the SE resource to the resource allocated by the P USCH.

Step 1402: and determining the ratio of the SE resources to the resources allocated by the PUSCH based on the indication information and a pre-configured table.

Step 1403: and determining the resources occupied by the SE based on the ratio of the SE resources to the resources allocated by the PUSCH and the resources allocated by the PUSCH.

Fig. 15 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a base station. As shown in fig. 15, the method includes:

Step 1501: receiving a PUSCH transmitted by a terminal in a SE mode; the number of modulation symbols carried by the SE resources is determined based on time domain granularity and resources occupied by the SE.

In some embodiments, the method may further comprise:

and carrying out IDFT on the PUSCH based on the SE occupied resources and the in-band resources for carrying data.

In some embodiments, the temporal granularity is one symbol.

In some embodiments, the time domain granularity is one slot.

In some embodiments, the SE type includes one of:

Symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the method may further comprise:

or alternatively, the process may be performed,

In some embodiments, the sending the configuration information includes:

transmitting a downlink control signaling, wherein indication information in the downlink control signaling is used for indicating the positions of the RB numbers occupied by the SE resources in a resource allocation table; the downlink control signaling is used for the terminal to determine the RB number occupied by the SE resources in the resource allocation table.

In some embodiments, the method further comprises:

and performing IDFT processing on the PUSCH based on the SE occupied resources and the in-band resources for carrying data.

In some embodiments, maximum-set-combining (maximum ratio co mbining, MRC) may also be performed on the received data content carried by the SE resources.

Fig. 16 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a base station. As shown in fig. 16, the method includes:

step 1601: receiving a PUSCH transmitted by a terminal in a SE mode; the number of modulation symbols carried by the SE resources is determined based on time domain granularity and resources occupied by the SE.

Step 1602: and performing IDFT processing on the PUSCH based on the SE occupied resources and the in-band resources for carrying data.

In some embodiments, the method further comprises:

and performing IFFT processing on the PUSCH based on the SE occupied resources and the in-band resources for bearing data.

Fig. 17 is a flowchart of a communication method according to an embodiment of the present disclosure, where the method is performed by a base station. As shown in fig. 17, the method includes:

step 1701: transmitting configuration information; the configuration information comprises information of resources occupied by SE or proportion of the SE resources to resources allocated by PUSCH.

Step 1702: receiving a PUSCH transmitted by a terminal in a SE mode; the number of modulation symbols carried by the SE resources is determined based on time domain granularity and resources occupied by the SE.

In some embodiments, IDFT processing may also be performed on the PUSCH based on the SE occupied resources and in-band resources for carrying data.

In some embodiments, the PUSCH may also be IFFT processed based on the SE occupied resources and in-band resources for carrying data.

The technical solutions of the embodiments of the present disclosure are further described below with reference to specific application embodiments.

Fig. 18 is a communication method based on FDSS provided by an embodiment of the present disclosure, as shown in fig. 18, where the method includes:

step 1801: the terminal determines a transport block (Transport Block Set, TBS).

Wherein, the terminal determines the TBS according to the total bandwidth (including internal bandwidth and SE bandwidth) allocated to the PUSCH transmission, or determines the TBS according to the internal bandwidth.

Step 1802: the terminal performs rate matching based at least on the length of the internal bandwidth.

The strategy of rate matching according to the length of the internal bandwidth is determined by different SE modes.

Step 1803: the terminal converts the M modulation symbols into M DFT symbols.

Step 1804: the terminal spreads the M DFT symbols to K symbols X' (K).

Step 1805: the terminal uses an FDSS filter for K symbols to obtain a sequence X (K) and transmits the sequence X (K).

Wherein X (K) can be calculated by the following formula:

X(K)＝W(K)*X'(K)。

step 1806: the terminal maps X (k) to an internal bandwidth and SE bandwidth and transmits PUSCH.

Step 1807: the base station performs IFFT on the received PUSCH to remove unused subcarriers.

Step 1808: the base station performs the de-resource mapping.

Step 1809: determining whether to perform MRC combining on the SE and the modulation symbols of the internal bandwidth, if so, performing channel estimation and equalization on the total bandwidth of the channel, and executing step 1810; if not, only the internal bandwidths are channel estimated and equalized, and then step 1812 is performed.

Step 1810: the internal wideband symbols and SE symbols are determined from the de-resource mapped output symbols according to the number of RBs occupied by the SE, the SE manner (e.g., symmetric extension, cyclic extension) and granularity of the SE processing (per symbol or per slot).

Step 1811: subset symbols (subsetsbols) are determined from the in-band symbol sequence based on the number of RBs occupied by the SE, the SE mode, and the granularity of the SE processing, and these determined subsetsbols are MRC combined with the SE symbols.

Step 1812: an IDFT is performed.

The communication method provided by the embodiment of the disclosure is applied to agree on the behaviors of both a base station and a terminal side, so that ambiguity of processing at a receiving end is avoided, and the PAPR is reduced and the transmission performance is improved.

Fig. 19 is a schematic structural diagram of a communication device according to an embodiment of the disclosure. The device is arranged at a terminal, and the device comprises:

a processing unit 1901, configured to determine resources occupied by the SE; determining a modulation symbol carried by the SE resource based on the time domain granularity and the resources occupied by the SE;

A transmitting unit 1902, configured to transmit a PUSCH by using an SE method based on the modulation symbol carried by the SE resource.

In some embodiments, the temporal granularity is one symbol.

In some embodiments, the processing unit 1901 is specifically configured to:

and determining the number of the modulation symbols repeatedly transmitted at the two ends of the frequency domain of each symbol based on the number of the RBs occupied by the SE.

In some embodiments, the processing unit 1901 may also be configured to:

In some embodiments, the time domain granularity is one slot.

In some embodiments, the processing unit 1901 is specifically configured to:

and determining the number of the modulation symbols repeatedly transmitted at two ends of the DFT output sequence based on the number of RBs occupied by the SE and the number of symbol actually used for carrying data in the PUSCH.

In some embodiments, the processing unit 1901 may also be configured to:

symmetrically expanding;

Circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the processing unit 1901 is specifically configured to:

or alternatively, the process may be performed,

In some embodiments, the processing unit 1901 is specifically configured to:

acquiring downlink control signaling, wherein indication information in the downlink control signaling is used for indicating the positions of the RB numbers occupied by the SE resources in a resource allocation table;

In some embodiments, the processing unit 1901 may also be configured to:

Fig. 20 is a schematic structural diagram of a communication device according to an embodiment of the disclosure. The apparatus is disposed at a base station, and the apparatus 2000 includes:

a receiving unit 2001, configured to receive a PUSCH transmitted by a terminal through an SE method; the number of modulation symbols carried by the SE resources is determined based on time domain granularity and resources occupied by the SE.

In some embodiments, the temporal granularity is one symbol.

In some embodiments, the time domain granularity is one slot.

In some embodiments, the SE type includes one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

In some embodiments, the apparatus may further comprise:

a transmitting unit configured to transmit configuration information; the configuration information comprises information of resources occupied by SE or proportion of SE resources to resources allocated by PUS CH.

In some embodiments, the sending unit may specifically be configured to:

In some embodiments, the apparatus may further comprise:

and the processing unit is used for carrying out resource removal mapping on the PUSCH based on the resources occupied by the SE and the in-band resources used for carrying data.

Fig. 21 is a schematic structural diagram of a base station according to an embodiment of the present disclosure. Referring to fig. 21, base station 2100 includes a processing component 2122 that further includes at least one processor, and memory resources represented by memory 2132 for storing instructions, such as applications, executable by processing component 2122. The application programs stored in memory 2132 may include one or more modules each corresponding to a set of instructions. Further, the processing component 2122 is configured to execute instructions to perform any of the methods described above as applied to the network device, e.g., as described in the embodiments of fig. 15-17.

The base station 2100 may also include a power component 2126 configured to perform power management of the base station 2100, a wired or wireless network interface 2150 configured to connect the base station 2100 to a network, and an input output (I/O) interface 2158. The base station 2100 may operate based on an operating system stored in memory 2132, such as Windows Server TM, mac OS XTM, unixTM, linuxTM, F reeBSDTM, or the like.

Fig. 22 is a block diagram of a terminal according to an embodiment of the present disclosure. For example, terminal 2200 may be a mobile phone, a computer, a digital broadcast terminal device, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, or the like.

Referring to fig. 22, the terminal 2200 may include at least one of the following components: a processing component 2202, a memory 2204, a power component 2206, a multimedia component 2208, an audio component 2210, an input/output (I/O) interface 2212, a sensor component 2214, and a communication component 2216.

The processing component 2202 generally controls overall operation of the terminal 2200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 2202 may include at least one processor 2220 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 2202 may include at least one module to facilitate interaction between the processing component 2202 and other components. For example, the processing component 2202 may include a multimedia module to facilitate interaction between the multimedia component 2208 and the processing component 2202.

The memory 2204 is configured to store various types of data to support operations at the terminal 2200. Examples of such data include instructions for any application or method operating on terminal 2200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 2204 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply assembly 2206 provides power to the various components of the terminal 2200. The power components 2206 may include a power management system, at least one power source, and other components associated with generating, managing, and distributing power for the terminals 2200.

The multimedia component 2208 includes a screen between the terminal 2200 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also a wake-up time and pressure associated with the touch or slide operation. In some embodiments, the multimedia assembly 2208 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the terminal 2200 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 2210 is configured to output and/or input audio signals. For example, the audio component 2210 includes a Microphone (MIC) configured to receive external audio signals when the terminal 2200 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in memory 2204 or transmitted via communication component 2216. In some embodiments, the audio component 2210 also includes a speaker for outputting audio signals.

The I/O interface 2212 provides an interface between the processing component 2202 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 2214 includes at least one sensor for providing status assessment of various aspects to the terminal 2200. For example, sensor assembly 2214 may detect the on/off state of terminal 2200, the relative positioning of the components, such as the display and keypad of terminal 2200, the sensor assembly 2214 may also detect the change in position of terminal 2200 or one component of terminal 2200, the presence or absence of user contact with terminal 2200, the orientation or acceleration/deceleration of terminal 2200, and the change in temperature of terminal 2200. The sensor assembly 2214 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 2214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 2214 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 2216 is configured to facilitate communication between terminal 2200 and other devices, either wired or wireless. Terminal 2200 can access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 2216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 2216 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on radio frequency identification (R FID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal 2200 may be implemented by at least one Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components for performing the methods shown in fig. 3-14 described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a memory 2204, comprising instructions executable by the processor 2220 of the terminal 2200 to perform the methods illustrated in fig. 3-14 described above. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the first, second, etc. numbers referred to in the present application are merely for convenience of description and are not intended to limit the scope of the embodiments of the present disclosure, but also to indicate the order of the steps.

At least one of the present application may also be described as one or more, and a plurality may be two, three, four or more, and the present application is not limited thereto. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relation shown in each table in the application can be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present application is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table of the present application, the correspondence relation shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated by the labels in the tables can also be other names which can be understood by the communication device, and the values or the representation modes of the parameters can also be other values or representation modes which can be understood by the small data packet transmission SDT transmission device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in the present application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, performed by a terminal, the method comprising:

determining resources occupied by spectrum spread SE;

and based on the modulation symbol carried by the SE resource, sending a Physical Uplink Shared Channel (PUSCH) in an SE mode.

2. The method of claim 1, wherein the time domain granularity is one symbol.

3. The method of claim 2, wherein the determining the modulation symbols carried by SE resources based on the time domain granularity and the resources occupied by the SE comprises:

and determining the number of the modulation symbols repeatedly transmitted at the two ends of the frequency domain of each symbol based on the number of the Resource Blocks (RBs) occupied by the SE.

4. A method according to claim 2 or 3, characterized in that the method further comprises:

5. The method of claim 5, wherein the type of SE pattern comprises one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

6. The method of claim 1, wherein the time domain granularity is one slot.

7. The method of claim 6, wherein the determining the modulation symbols carried by SE resources based on the time domain granularity and the resources occupied by the SE comprises:

and determining the number of the modulation symbols repeatedly transmitted at two ends of the DFT output symbol sequence based on the number of RBs occupied by the SE and the number of symbols actually used for carrying data in the PUSCH.

8. The method according to claim 6 or 7, characterized in that the method further comprises:

9. The method of claim 8, wherein the SE performs SE on uplink resources in slot units, including:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

10. The method of claim 1, wherein the determining resources occupied by the SE comprises:

11. The method according to claim 1, wherein the method further comprises:

12. The method of claim 11, wherein the preconfigured form is a new form or an existing form; the existing table may include TPC, MCS, or TDRA.

13. The method according to claim 11, wherein the downlink control signaling comprises downlink control information, DCI, signaling or medium access control, sub-layer control element, MAC CE, signaling.

14. The method of claim 13, wherein the downlink control signaling is DCI, and the indication information may be a new field, a reserved field, or an existing field in the DCI; the existing field may include a TPC field, an MCS field, a TDRA field, or an FDRA field.

15. The method according to claim 2 or 6, characterized in that the method further comprises:

16. The method according to claim 2 or 6, characterized in that the method further comprises:

17. A method of communication, performed by a base station, the method comprising:

18. The method of claim 17, wherein the time domain granularity is one symbol.

19. The method of claim 18, wherein a number of modulation symbols repeatedly transmitted across a frequency domain of each symbol is determined based on a number of RBs occupied by the SE.

20. The method according to claim 18 or 19, characterized in that the number of modulation symbols repeatedly transmitted across the frequency domain of each symbol is determined based on the SE type.

21. The method of claim 20, wherein the SE type comprises one of:

Symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

22. The method of claim 17, wherein the time domain granularity is one slot.

23. The method of claim 22 wherein the number of modulation symbols inserted into the repeated transmission across the DFT output sequence is determined based on the number of RBs occupied by the SE and the number of symbols actually used to carry data in the PUSCH.

24. The method of claim 22 or 23, wherein the number of modulation symbols repeatedly transmitted across the DFT output sequence is determined based on the SE type.

25. The method of claim 24, wherein the SE type comprises one of:

symmetrically expanding;

circularly expanding;

symmetric and cyclic expansion.

26. The method of claim 17, wherein the method further comprises:

or alternatively, the process may be performed,

27. The method of claim 26, wherein the method further comprises:

28. The method of claim 27, wherein the preconfigured form is a new form or an existing form; the existing table may include TPC, MCS, or TDRA.

29. The method of claim 27, wherein the downlink control signaling is DCI signaling or MAC CE signaling.

30. The method of claim 29, wherein the downlink control signaling is DCI, and the indication information may be a new field, a reserved field, or an existing field in the DCI; the existing field may include a TPC field, an MCS field, a TDRA field, or an FDRA field.

31. The method of claim 18 or 22, wherein the rate matching of PUSCH is based on the number of RBs occupied by in-band resources for carrying data.

32. The method according to claim 18 or 22, characterized in that the method further comprises:

and performing Inverse Discrete Fourier Transform (IDFT) on the PUSCH based on the SE occupied resources and the in-band resources for carrying data.

33. A terminal, comprising:

34. A base station, comprising:

35. A communication apparatus comprising a processor and a memory, wherein the memory has stored therein a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform:

the method of any one of claims 1 to 16; or alternatively

The method of any one of claims 17 to 32.

36. A communication device, comprising: processor and interface circuit, wherein

The interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor is configured to execute the code instructions to perform:

the method of any one of claims 1 to 16; or alternatively

The method of any one of claims 17 to 32.

37. A computer readable storage medium storing instructions that, when executed, cause a method to be implemented of:

The method of any one of claims 1 to 16; or alternatively

The method of any one of claims 17 to 32.

38. A communication system, characterized in that the system comprises a terminal, a base station, wherein,

the terminal being adapted to perform the method of any of claims 1 to 16;

the base station being adapted to perform the method of any of claims 17 to 32.