User equipment and methods thereof

Abstract

This disclosure provides a method executed by a user equipment in a wireless communication system, relating to the field of communication technology. The method includes: receiving first information from a base station, the first information including configuration information related to multiple subcarrier spacings of an uplink channel or signal; receiving second information from the base station, the second information including first indication information related to the subcarrier spacing of a first uplink channel or signal; and transmitting a first uplink channel or signal based on the first indication information; wherein the subcarrier spacing of the first uplink channel or signal is determined based on the first indication information and the configuration information, thereby providing a method for dynamically adjusting the subcarrier spacing, which can effectively enhance uplink coverage.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to a user equipment and a method thereof. Background Technology

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or near-5G communication systems. Therefore, 5G or near-5G communication systems are also referred to as "super 4G networks" or "post-LTE systems".

[0003] 5G communication systems are implemented in higher frequency (millimeter wave, mmWave) bands, such as the 60GHz band, to achieve higher data rates. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0004] In addition, in 5G communication systems, development is underway to improve the system network based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), receiver interference cancellation, and other technologies.

[0005] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding and modulation (ACM), as well as filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies. Summary of the Invention

[0006] This disclosure provides a method, user equipment, and computer-readable storage medium executed by a user equipment in a wireless communication system, which can solve the uplink coverage problem in a communication system. The technical solution is as follows: In a first aspect, a method performed by a user equipment (UE) in a wireless communication system is provided, the method comprising: Receive first information from the base station, the first information including configuration information related to multiple subcarrier spacings of the uplink channel or signal; Receive second information from the base station, the second information including first indication information related to the subcarrier interval among the plurality of subcarrier intervals; Send the first uplink channel or signal; The subcarrier spacing of the first uplink channel or signal is determined based on the first indication information and the configuration information.

[0007] In the above embodiments, the UE determines the subcarrier spacing used when transmitting the first uplink channel or signal based on information related to multiple subcarrier spacings configured by the base station and first indication information related to the subcarrier spacing among these multiple subcarrier spacings. Therefore, the purpose of dynamically adjusting the subcarrier spacing used for uplink channel or signal transmission can be achieved, thereby effectively enhancing uplink coverage.

[0008] In other embodiments, the configuration information includes at least one of the following: Uplink transmission mode; Switching indication information for multiple subcarrier intervals; Configuration information for various subcarrier spacings; Indexes of multiple subcarrier spacings; Information related to uplink frequency domain resources; Information related to uplink time domain resources.

[0009] In the above embodiments, the UE is configured with information related to multiple subcarrier intervals of the uplink channel or signal, such as multiple transmission modes, switching indications for multiple subcarrier intervals, configuration information for multiple subcarrier intervals, indexes for multiple subcarrier intervals, and one or more of the relevant information of uplink time and frequency resources. This ensures that the UE can accurately obtain the corresponding subcarrier interval based on the indication information from the base station, thereby enhancing uplink coverage while maintaining a low peak-to-average power ratio.

[0010] In other embodiments, the uplink transmission mode includes: single-carrier transmission or multi-carrier transmission; The indication method for the uplink transmission mode includes at least one of the following: Indicated via downlink control information in DCI format; Instructions via Radio Resource Control (RRC) signaling; Indicated by the information field in DCI.

[0011] In the above embodiments, multiple methods are used to indicate the uplink transmission mode to the UE, which can better adapt to different application scenarios of the UE in order to reduce the power consumption of the UE.

[0012] In other embodiments, the scheme in which the uplink transmission mode is indicated by the information field in the DCI includes at least one of the following: Indicated by the first information field in the DCI; Frequency domain resource allocation (FDRA) indication field is used in DCI; The time-domain resource allocation (TDRA) in the DCI indicates the domain indication.

[0013] In the above embodiments, by indicating the uplink transmission mode in the information field of the DCI, the signaling consumption can be effectively reduced.

[0014] In other embodiments, the uplink transmission mode is single-carrier transmission, and the first uplink channel or signal is transmitted through the maximum transmit power of the UE.

[0015] In the above embodiments, when the uplink transmission mode is single-carrier transmission, the uplink channel or signal is transmitted with the maximum transmit power without power back-off, ensuring the quality of the uplink channel or signal, and without the need for further calculation, which can save system energy consumption.

[0016] In other embodiments, the first uplink channel or signal is transmitted on a single subcarrier, and the first uplink channel or signal is transmitted at the maximum transmit power of the UE.

[0017] In the above embodiments, when the first uplink channel or signal is transmitted on a single subcarrier, the uplink channel or signal is transmitted with the maximum transmit power without power back-off, which ensures the quality of the uplink channel or signal and eliminates the need for further calculations, thus saving system energy consumption.

[0018] In other implementations, the relevant information of the uplink frequency domain resources includes one of the following: The first bandwidth used for uplink transmission; The number of subcarriers in the first bandwidth; The number of Physical Resource Blocks (PRBs) in the first bandwidth; The number of subcarriers in each PRB; The number of carrier groups in the first bandwidth; The number of Resource Block Groups (RBGs) in the first bandwidth; The number of subcarriers or PRBs in each RBG; The allocation type of uplink frequency domain resources; Frequency hopping related configurations.

[0019] In the above embodiments, the base station configures relevant information on uplink frequency domain resources to the UE, which can ensure that when the UE obtains the corresponding subcarrier interval based on the indication information, it can more accurately determine the frequency domain resources to be used, thereby achieving the goal of maintaining a low peak-to-average power ratio.

[0020] In other embodiments, the number of subcarriers is related to the subcarrier spacing and the first bandwidth, or the number of subcarriers is related to the subcarrier spacing and the bandwidth of the PRB, or the number of subcarriers is predefined.

[0021] In the above embodiments, the utilization rate of the bandwidth frequency can be maximized. For example, it can still work properly when the subcarrier spacing determined based on the first indication information is greater than the subcarrier spacing of the allocated resources; if the number of subcarriers is predefined, signaling overhead can be saved.

[0022] In some other embodiments, there is a frequency-domain carrier protection interval between different subcarriers.

[0023] In the above embodiments, by setting a frequency-domain carrier protection interval directly between different subcarriers, interference between subcarriers can be suppressed.

[0024] In some other embodiments, the relevant information of the uplink time-domain resources includes one of the following: The length information of the time-domain resources; The length of the time unit; The number of OFDM symbols in one such time unit; The configuration of time-domain resource repetition.

[0025] In the above embodiments, when the base station configures the relevant information of the uplink time-domain resources for the UE, it can ensure that when the UE uses the corresponding subcarrier spacing obtained based on the indication information, it can more accurately determine the time-domain resources to be used, so as to achieve the purpose of maintaining a lower peak-to-average ratio.

[0026] In some other embodiments, the length of the time unit is related to the subcarrier spacing, or the length of the time unit is predefined.

[0027] In the above embodiments, when the length of the time unit is related to the subcarrier spacing, the effect of different subcarrier spacings corresponding to different data rates can be achieved.

[0028] In some other embodiments, the length information of the time resources is related to the subcarrier spacing, or the length information of the time resources is predefined.

[0029] In the above embodiments, when the length information of the time resources is related to the subcarrier spacing, the effect of different subcarrier spacings corresponding to different data rates can be achieved.

[0030] In some other embodiments, the configuration information of the multiple subcarrier spacings includes: the length of the cyclic prefix CP corresponding to each subcarrier spacing, and / or, the insertion manner of the CP; Among them, the insertion manner of the CP includes: Inserting the CP into some of the OFDM symbols in the time unit corresponding to the subcarrier spacing; or, Not inserting the CP into all of the OFDM symbols in the time unit corresponding to the subcarrier spacing.

[0031] In the above embodiments, the CP insertion method described above can effectively shorten the CP length, thereby reducing system overhead and improving system throughput.

[0032] In other embodiments, the second information further includes at least one of the following: Information related to the frequency domain resources of the first uplink channel or signal; Information related to the time-domain resources of the first uplink channel or signal; The information related to the frequency domain resources of the first uplink channel or signal includes: second indication information, used to indicate the frequency domain location for transmitting the first uplink channel or signal; The information related to the time-domain resources of the first uplink channel or signal includes at least one of the following: Length information of the first time-domain resource; Location information of resources in the first time domain; First time domain resource repetition indication information.

[0033] In the above embodiments, when the base station sends first indication information related to the subcarrier spacing of the first uplink channel or signal to the UE, it can also send information related to the time domain and / or frequency domain resources of the first uplink channel or signal to the UE, thereby enabling the UE to accurately determine the time domain and / or frequency domain resources to be used.

[0034] In other embodiments, the second indication information includes one of the following: A first indication field used to directly indicate the frequency domain location; A second indication field used to indicate the frequency domain location; The second indication field includes at least two of the following: An indication field used to indicate the location of a resource block group (RBG) in the first bandwidth of uplink transmission; Indication field used to indicate the position of subcarriers in RBG; Indication field used to indicate the position of PRB in RBG; An indication field used to indicate the location of the PRB in the first bandwidth; An indication field used to indicate the position of a subcarrier group in the first bandwidth; An indication field used to indicate the position of subcarriers in the PRB; An indication field used to indicate the position of a subcarrier in a subcarrier group.

[0035] In the above embodiments, by employing various different methods to indicate the frequency domain location of the UE transmitting the first uplink channel or signal, it is possible to better adapt to different application scenarios of the UE in order to reduce the power consumption of the UE.

[0036] In some other embodiments, the information related to the frequency-domain resources of the first uplink channel or signal further includes at least one of the following: The third indication information for indicating whether frequency hopping is enabled; The fourth indication information for indicating the frequency-hopping pattern; The information of the carrier protection interval.

[0037] In the above embodiments, by indicating the information related to frequency hopping, the robustness of the uplink channel or signal can be effectively increased.

[0038] In some other embodiments, the method further includes: Determining the transport block size based on the second information. [[ID=1�]]

[0039] In the above embodiments, different time-frequency domain resources are allocated according to different service requirements to achieve different system throughputs or data rates to meet different service requirements. [[ID=2०]]

[0040] In some other embodiments, the determining the transport block size based on the second information includes: Determining the number of resource elements (REs) occupied by the transport block according to the length information of the first time-domain resource; Determining the number of bits transmitted by the transport block according to the modulation and coding scheme (MCS) and the number of REs occupied by the transport block.

[0041] In the above embodiments, the number of bits transmitted by the transport block is determined by the length information of the first time-domain resource corresponding to the first uplink channel or signal, thereby achieving the effect that different subcarrier intervals correspond to different data rates.

[0042] In some other embodiments, the sending of the first uplink channel or signal includes: Determining the uplink grant based on the first indication information; Sending the first uplink channel or signal according to the uplink grant.

[0043] In the above embodiments, the UE can determine the uplink grant through the first indication information related to the subcarrier interval and then send the first uplink channel or signal, thereby ensuring the communication performance.

[0044] In a second aspect, a method performed by a base station in a wireless communication system is provided. The method includes: Sending first information to a user equipment (UE), where the first information includes configuration information related to multiple subcarrier intervals of an uplink channel or signal; Sending second information to the UE, where the second information includes first indication information related to the subcarrier interval among the multiple subcarrier intervals; Receive the first uplink channel or signal sent by the UE; The subcarrier spacing of the first uplink channel or signal is determined based on the first indication information and the configuration information.

[0045] In other embodiments, the configuration information includes at least one of the following: Uplink transmission mode; Switching indication information for multiple subcarrier intervals; Configuration information for various subcarrier spacings; Indexes of multiple subcarrier spacings; Information related to uplink frequency domain resources; Information related to uplink time domain resources.

[0046] In other embodiments, the uplink transmission mode includes: single-carrier transmission or multi-carrier transmission; The indication method for the uplink transmission mode includes at least one of the following: Indicated via downlink control information in DCI format; Instructions via Radio Resource Control (RRC) signaling; Indicated by the information field in DCI.

[0047] In other embodiments, the scheme in which the uplink transmission mode is indicated by the information field in the DCI includes at least one of the following: Indicated by the first information field in the DCI; Frequency domain resource allocation (FDRA) indication field is used in DCI; The time-domain resource allocation (TDRA) in the DCI indicates the domain indication.

[0048] In other embodiments, the uplink transmission mode is single-carrier transmission, and the first uplink channel or signal is transmitted through the maximum transmit power of the UE.

[0049] In other implementations, the first uplink channel or signal is transmitted on a single subcarrier, and the first uplink channel or signal is transmitted at the maximum transmit power of the UE.

[0050] In other implementations, the relevant information of the uplink frequency domain resources includes one of the following: The first bandwidth used for uplink transmission; The number of subcarriers in the first bandwidth; The number of Physical Resource Blocks (PRBs) in the first bandwidth; The number of subcarriers in each PRB; The number of carrier groups in the first bandwidth; The number of Resource Block Groups (RBGs) in the first bandwidth; The number of subcarriers or PRBs in each RBG; The allocation type of uplink frequency domain resources; Frequency hopping related configurations.

[0051] In other embodiments, the number of subcarriers is related to the subcarrier spacing and the first bandwidth, or the number of subcarriers is related to the subcarrier spacing and the bandwidth of the PRB, or the number of subcarriers is predefined.

[0052] In other implementations, there is a frequency domain carrier guard interval between different subcarriers.

[0053] In other implementations, the relevant information of the uplink time-domain resources includes one of the following: Length information of time-domain resources; The length of a time unit; The number of OFDM symbols in one time unit; Redundant configuration of time-domain resources.

[0054] In other implementations, the length of the time unit is related to the subcarrier spacing, or the length of the time unit is predefined.

[0055] In other implementations, the length information of the time resource is related to the subcarrier spacing, or the length information of the time resource is predefined.

[0056] In other embodiments, the configuration information of the multiple subcarrier intervals includes: the length of the cyclic prefix (CP) corresponding to each subcarrier interval, and / or, the insertion method of the CP; The insertion methods of the CP include: A portion of the OFDM symbols in the time unit corresponding to the subcarrier interval are inserted into the CP; or, All OFDM symbols in the time unit corresponding to the subcarrier interval are not inserted with a CP.

[0057] In other embodiments, the second information further includes at least one of the following: Information related to the frequency domain resources of the first uplink channel or signal; Information related to the time-domain resources of the first uplink channel or signal; The information related to the frequency domain resources of the first uplink channel or signal includes: second indication information, used to indicate the frequency domain location for transmitting the first uplink channel or signal; The information related to the time-domain resources of the first uplink channel or signal includes at least one of the following: Length information of the first time-domain resource; Location information of resources in the first time domain; First time domain resource repetition indication information.

[0058] In other embodiments, the second indication information includes one of the following: A first indication field used to directly indicate the frequency domain location; A second indication field used to indicate the frequency domain location; The second indication field includes at least two of the following: An indication field used to indicate the location of a resource block group (RBG) in the first bandwidth of uplink transmission; Indication field used to indicate the position of subcarriers in RBG; Indication field used to indicate the position of PRB in RBG; An indication field used to indicate the location of the PRB in the first bandwidth; An indication field used to indicate the position of subcarriers in the PRB; An indication field used to indicate the position of a subcarrier group in the first bandwidth; An indication field used to indicate the position of a subcarrier in a subcarrier group.

[0059] In other embodiments, the information related to the frequency domain resources of the first uplink channel or signal further includes at least one of the following: The third indication information is used to indicate whether frequency hopping is enabled; The fourth indication information is used to indicate the frequency hopping pattern; Information on carrier protection intervals.

[0060] In other embodiments, receiving the first uplink channel or signal transmitted by the UE includes: The UE receives a first uplink channel or signal sent according to the uplink grant, wherein the uplink grant is determined based on the first indication information.

[0061] Thirdly, a user equipment in a wireless communication system is provided, comprising: a transceiver and at least one processor coupled to the transceiver, the at least one processor being configured to perform the method shown in the first aspect of this disclosure.

[0062] Fourthly, a user equipment in a wireless communication system is provided, comprising: a transceiver and at least one processor coupled to the transceiver, the at least one processor being configured to perform the method shown in the second aspect of this disclosure.

[0063] Fifthly, a computer-readable storage medium is provided, wherein a computer program is stored therein, and the computer program, when executed by a processor, performs the methods shown in the first or second aspect of this disclosure. Attached Figure Description

[0064] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0065] The text and accompanying drawings are provided by way of example only to aid in understanding this disclosure. They should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0066] Figure 1 Example wireless networks according to various embodiments of this disclosure are shown; Figure 2a and Figure 2b An example wireless transmission and reception path according to this disclosure is shown; Figure 3a An example user equipment according to this disclosure is shown; Figure 3b An example base station according to this disclosure is shown; Figure 4 A flowchart illustrating a method performed by a user equipment in a wireless communication system according to an embodiment of this disclosure is shown. Figure 5 A schematic diagram of a cyclic prefix CP insertion method provided in an embodiment of this disclosure is shown; Figure 6 A schematic diagram of other CP insertion methods provided in embodiments of this disclosure is shown; Figure 7 A schematic diagram of a reference signal RS provided in an embodiment of this disclosure is shown; Figure 8-1 A flowchart illustrating an interaction method performed by a user equipment and a base station in a wireless communication system, according to an embodiment of this disclosure, is shown. Figure 8-2 A flowchart illustrating an interaction method performed by a user equipment and a base station in a wireless communication system, according to an embodiment of this disclosure, is shown. Figure 9-1 A schematic diagram of a frequency domain resource location provided in an embodiment of this disclosure is shown; Figure 9-2 A schematic diagram illustrating another frequency domain resource location provided by an embodiment of this disclosure is shown; Figure 10-1A schematic diagram illustrating another frequency domain resource location provided by an embodiment of this disclosure is shown; Figure 10-2 A schematic diagram illustrating another frequency domain resource location provided by an embodiment of this disclosure is shown; Figure 11 A schematic diagram illustrating another frequency domain resource location provided by an embodiment of this disclosure is shown; Figure 12 A schematic diagram illustrating another frequency domain resource location provided by an embodiment of this disclosure is shown; Figure 13-1 A schematic diagram of a time-domain resource location provided in an embodiment of this disclosure is shown; Figure 13-2 A schematic diagram illustrating another temporal resource location provided by an embodiment of this disclosure is shown; Figure 14 A schematic diagram of a frequency hopping pattern provided in an embodiment of this disclosure is shown; Figure 15 A schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure is shown. Detailed Implementation

[0067] The following description, with reference to the accompanying drawings, is provided to aid in a thorough understanding of the various embodiments of this disclosure as defined by the claims and their equivalents. This description includes various specific details to aid understanding but should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of this disclosure. Furthermore, for clarity and brevity, descriptions of well-known functions and structures may be omitted.

[0068] The terms and wording used in the following description and claims are not limited to their dictionary meanings, but are merely used by the inventors to enable a clear and consistent understanding of this disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this disclosure is for illustrative purposes only and not for limiting the purpose of this disclosure as defined in the appended claims and their equivalents.

[0069] It should be understood that the singular forms of “one,” “an,” and “the” include plural references unless the context clearly indicates otherwise. Thus, for example, the reference to “component surface” includes one or more such surfaces.

[0070] The terms “comprising” or “may include” refer to the presence of a corresponding disclosed function, operation, or component that may be used in the various embodiments of this disclosure, rather than limiting the presence of one or more additional functions, operations, or features. Furthermore, the terms “comprising” or “having” may be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be construed as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0071] The term "or" as used in the various embodiments of this disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0072] Unless otherwise defined, all terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of those skilled in the art as described herein. Common terms as defined in dictionaries are to be interpreted as having a meaning consistent with the context in the relevant technical field and should not be interpreted ideally or overly formally unless expressly defined in this disclosure.

[0073] The various embodiments of this disclosure can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5th Generation (5G) systems, or New Radio (NR) systems, etc. Furthermore, the various embodiments of this disclosure can be applied to future-oriented communication technologies.

[0074] Figure 1 An example wireless network 100 according to various embodiments of the present disclosure is shown. Figure 1 The embodiment of the wireless network 100 shown is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0075] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the Internet, a proprietary IP network, or other data network.

[0076] Depending on the network type, other well-known terms such as "base station (BS)" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, other well-known terms such as "mobile station", "user station", "remote terminal", "wireless terminal", or "user device" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a fixed device as commonly understood (such as a desktop computer or vending machine).

[0077] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within its coverage area 120. The multiple first UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a cellular phone, wireless laptop computer, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 to multiple second UEs within its coverage area 125. The multiple second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, LTE, LTE-A, WiMAX, or other advanced wireless communication technologies.

[0078] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas associated with the gNB, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0079] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of this disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and architecture for systems having 2D antenna arrays.

[0080] although Figure 1 An example of a wireless network 100 is shown, but it is possible to... Figure 1 Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0081] Figure 2a and Figure 2b Example wireless transmit and receive paths according to this disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB, and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of this disclosure.

[0082] The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, a cyclic prefix addition block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a serial-to-parallel (S-to-P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0083] In transmit path 200, channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity-check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. Serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in gNB 102 and UE 116. N-point IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. Upconverter 230 modulates (e.g., upconverts) the output of the added cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at the baseband before being converted to the RF frequency.

[0084] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the opposite operation to that at gNB 102. Downconverter 255 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0085] Each of gNBs 101-103 can implement a transmission path 200 similar to that used for transmission to UEs 111-116 in the downlink, and a reception path 250 similar to that used for reception from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 can implement a transmission path 200 for transmission to gNBs 101-103 in the uplink, and a reception path 250 for reception from gNBs 101-103 in the downlink.

[0086] Figure 2a and Figure 2b Each of the components can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2b At least some of the components can be implemented in software, while others can be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as configurable software algorithms, wherein the value of the number of points N can be modified according to the implementation method.

[0087] Furthermore, although the description uses FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, can be used. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0088] although Figure 2a and Figure 2b An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 2a and Figure 2b This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0089] Figure 3a Example UE 116 according to this disclosure is shown. Figure 3a The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1UEs 111-115 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3a This disclosure is not intended to limit the scope of any particular implementation of the UE.

[0090] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a transmit (TX) processing circuitry 303, a microphone 304, and a receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface (IF) 308, multiple input devices 309, a display 310, and a memory 311. The memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0091] RF transceiver 302 receives incoming RF signals transmitted by a gNB of wireless network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (e.g., for voice data) or to controller / processor 307 (e.g., for web browsing data) for further processing.

[0092] TX processing circuitry 303 receives analog or digital voice data from microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from controller / processor 307. TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceiver 302 receives the processed baseband or IF signals from TX processing circuitry 303 and up-converts the baseband or IF signals into RF signals transmitted via antenna 301.

[0093] The controller / processor 307 may include one or more processors or other processing devices and execute an OS 312 stored in memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuit 305, and the TX processing circuit 303 according to known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0094] The controller / processor 307 is also capable of executing other processes and programs residing in the memory 311, such as operations for channel quality measurement and reporting for a system having a 2D antenna array as described in the embodiments of this disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as needed for the execution of the process. In some embodiments, the controller / processor 307 is configured to execute an application 313 based on the OS 312 or in response to signals received from a gNB or operator. The controller / processor 307 is also coupled to an I / O interface 308, which provides the UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the controller / processor 307.

[0095] The controller / processor 307 is also coupled to input devices(s) 309 and a display 310. An operator of the UE 116 can use the input devices(s) 309 to input data into the UE 116. The display 310 may be a liquid crystal display (LCD) or another display capable of displaying text and / or at least limited graphics (such as from a website). Memory 311 is coupled to the controller / processor 307. A portion of memory 311 may include random access memory (RAM), while another portion of memory 311 may include flash memory or other read-only memory (ROM).

[0096] although Figure 3a An example of UE 116 is shown, but it is possible to... Figure 3a Make various changes. For example, Figure 3a The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, the controller / processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although... Figure 3a The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0097] Figure 3b An example gNB 102 according to this disclosure is shown. Figure 3b The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 3b The scope of this disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

[0098] like Figure 3b As shown, gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0099] RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by the UE or other gNBs, from antennas 370a-370n. RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0100] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from the TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0101] The controller / processor 378 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceivers 372a-372n, RX processing circuitry 376, and TX processing circuitry 374, according to known principles. The controller / processor 378 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 378 may perform a BIS process, such as by a blind interference sensing (BIS) algorithm, and decode the received signal after subtracting interference. The controller / processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0102] The controller / processor 378 is also capable of executing programs and other processes, such as a basic operating system, residing in the memory 380. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of this disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed for the execution of processes.

[0103] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 is capable of supporting communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technologies or NR, LTE, or LTE-A), the backhaul or network interface 382 allows the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 allows the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable architecture supporting communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0104] Memory 380 is coupled to controller / processor 378. A portion of memory 380 may include RAM, while another portion may include flash memory or other ROM. In some embodiments, multiple instructions, such as a BIS algorithm, are stored in memory. The multiple instructions are configured to cause controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0105] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

[0106] although Figure 3b An example of gNB 102 is shown, but it is possible to compare it with other models. Figure 3b Various modifications can be made. For example, gNB102 can include any number of... Figure 3aEach component shown. As a specific example, the access point can include multiple backhaul or network interfaces 382, ​​and the controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as a single instance including TX processing circuitry 374 and a single instance including RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0107] The existing NR frame structure has multiple seed carrier intervals: Frames used for downlink transmission, uplink transmission, and bypass transmission Each frame consists of 10 subframes. The number of consecutive OFDM symbols in each subframe is: .in, Used for subcarrier spacing configuration Arranged in ascending order within the subframe Arranged in ascending order within the frame. It is the number of consecutive OFDM symbols within a time slot, which depends on the given cyclic prefix.

[0108] The frame structure design of NB-IoT is as follows: The physical channel or signal transmitted in the time slot is Subcarriers and One or more resource grid descriptions for each SC-FDMA symbol. The slot number within a radio frame is represented as... ,in, ,but ; ,but .

[0109] Table 1 below shows the subcarrier Uplink bandwidth and slot duration in units .

[0110]

[0111] Table 1 Resource units are used to describe the mapping from NPUSCH to resource elements. Resource units are defined as SC-FDMA symbols in the time domain. and continuous subcarriers in the frequency domain ,in, and The frame structure types 1 and 2 are given in Tables 2 and 3 below, respectively.

[0112]

[0113] Table 2

[0114] Table 3 In NTN (Non-Terrestrial Network) scenarios, long communication distances and significant path losses make uplink coverage a major challenge for the industry. Furthermore, suppressing peak-to-average power ratio (PAPR) is essential in practical communication systems, especially for uplink, where effective PAPR suppression can yield substantial economic benefits.

[0115] Therefore, this disclosure proposes a novel single-tone uplink transmission scheme based on different subcarrier spacing, which can achieve a peak-to-average power ratio of 0dB and effectively enhance the uplink power spectral density.

[0116] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0117] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0118] Figure 4 A flowchart illustrating a method performed by a user equipment in a wireless communication system, according to an embodiment of this disclosure, is shown. Figure 4 As shown, the method may include: S401. Receive first information from the base station, the first information including configuration information related to multiple subcarrier spacings of the uplink channel or signal.

[0119] S402. Receive second information from the base station, the second information including first indication information related to the subcarrier interval among the multiple subcarrier intervals.

[0120] S403, Send the first uplink channel or signal.

[0121] The subcarrier spacing of the first uplink channel or signal is determined based on the first indication information and the configuration information.

[0122] In the above embodiments, the UE determines the subcarrier spacing used when transmitting the first uplink channel or signal based on information related to multiple subcarrier spacings configured by the base station and first indication information related to the subcarrier spacing among these multiple subcarrier spacings. Therefore, by dynamically adjusting the subcarrier spacing used for uplink channel or signal transmission, uplink coverage can be effectively enhanced.

[0123] In some embodiments, the first uplink channel or signal is transmitted on a single-tone subcarrier. Optionally, when the first uplink channel or signal is transmitted on a single subcarrier, the UE may transmit the first uplink channel or signal using maximum transmit power.

[0124] In some embodiments, configuration information related to multiple subcarrier spacings of the uplink channel or signal may include at least one of the following: Uplink transmission mode; Switching indication information for multiple subcarrier intervals; Configuration information for various subcarrier spacings; Indexes of multiple subcarrier spacings; Information related to uplink frequency domain resources; Information related to uplink time domain resources.

[0125] In the above embodiments, the uplink transmission mode includes: single-carrier transmission or multi-carrier transmission. A single-carrier uplink transmission mode can be understood as the uplink signal or channel being transmitted on a single subcarrier.

[0126] In some embodiments, the indication of the uplink transmission mode includes at least one of the following: Indicated via downlink control information in DCI format; Instructions via Radio Resource Control (RRC) signaling; Indicated by the information field in DCI.

[0127] In the above embodiments, when the uplink transmission mode is indicated by the DCI format, different DCI formats correspond to different transmission modes. Alternatively, the transmission mode can be directly indicated by RRC signaling. Or, the transmission mode can be indicated using the information field (or information field) in the DCI.

[0128] In some embodiments, the scheme in which the uplink transmission mode is indicated by the information field in the DCI includes at least one of the following: Indicated by the first information field in the DCI; Frequency domain resource allocation (FDRA) indication field is used in DCI; The time-domain resource allocation (TDRA) in the DCI indicates the domain indication.

[0129] In the above embodiments, the first information field can be a newly added field in the DCI. For example, a new field of 1 bit can be added to the DCI to indicate whether it is a single-tone transmission mode, or the single-tone transmission mode can be indicated by a newly added subcarrier spacing indication field in the DCI.

[0130] In the above embodiments, the FDRA or TDRA fields in DCI can also be used to implicitly indicate, for example, that when these fields adopt a new bit length, it is a single-tone transmission mode.

[0131] In some embodiments, if the uplink transmission mode is single-carrier transmission, the first uplink channel or signal is transmitted through the UE's maximum transmit power.

[0132] The information configured by the base station for the UE related to the various subcarrier spacings of the uplink channel or signal may include information related to uplink time-frequency domain resources.

[0133] In some embodiments, the relevant information for uplink frequency domain resources includes one of the following: The first bandwidth used for uplink transmission; The number of subcarriers in the first bandwidth; The number of Physical Resource Blocks (PRBs) in the first bandwidth; The number of subcarriers in each PRB; The number of carrier groups in the first bandwidth; The number of Resource Block Groups (RBGs) in the first bandwidth; The number of subcarriers or PRBs in each RBG; The allocation type of uplink frequency domain resources; Frequency hopping related configurations.

[0134] In the above embodiments, the first bandwidth may include, but is not limited to, system bandwidth or bandwidth portion BWP.

[0135] In the above embodiments, the allocation type of uplink frequency domain resources may include, but is not limited to: allocation according to a specified pattern, allocation according to multiple subcarriers on the overall bandwidth, allocation according to multiple indicator domains, etc.

[0136] In the above embodiments, frequency hopping configurations may include, but are not limited to: frequency hopping pattern (how many time-domain resources and frequency-domain resources are grouped together, and which pattern to use for hopping (up and down, half, etc.)), using a predefined frequency hopping pattern, or a configured frequency hopping pattern, etc.

[0137] In the above embodiments, the number of subcarriers is related to the subcarrier spacing and the first bandwidth, or the number of subcarriers is related to the subcarrier spacing and the bandwidth of the PRB, or the number of subcarriers is predefined.

[0138] In some embodiments, there is a frequency domain carrier guard interval between different subcarriers.

[0139] In some embodiments, the relevant information of the uplink time domain resources includes one of the following: Length information of time-domain resources; The length of a time unit; The number of OFDM symbols in one time unit; Redundant configuration of time-domain resources.

[0140] In the above embodiments, the length information of the time-domain resource may include, but is not limited to, the number of time units. A time unit can be understood as a scheduled time resource, such as: TTI, time slot, symbol, etc.

[0141] For example, information related to uplink time-domain resources may include one or more of the following: the number of TTIs or time slots, the number of OFDM symbols, the length of TTIs or time slots, and the number of OFDM symbols in a TTI or time slot.

[0142] In the above embodiments, the configuration of time-domain resource repetition may include, but is not limited to: time-domain resource repetition indication information, the number of times time-domain resources are repeated, the length of the repeated time-domain resources, etc.

[0143] In some embodiments, the length of the time unit is related to the subcarrier spacing, or the length of the time unit is predefined.

[0144] In some embodiments, the length information of the time resource is related to the subcarrier spacing, or the length information of the time resource is predefined.

[0145] In the above embodiments, the length of the time unit and / or the length information of the time resource may be related to the subcarrier spacing or may not be related to the subcarrier spacing. For example, it may be a predefined or configured fixed value. This disclosure does not limit this.

[0146] In some embodiments, the configuration information for multiple subcarrier intervals includes: the length of the cyclic prefix (CP) corresponding to each subcarrier interval, and / or, the insertion method of the CP.

[0147] Optional methods for inserting CP include: A portion of the OFDM symbols in the time unit corresponding to the subcarrier interval are inserted into the CP; or, All OFDM symbols in the time unit corresponding to the subcarrier interval are not inserted with a CP.

[0148] Alternatively, all OFDM symbols in the time unit corresponding to the subcarrier interval can be inserted into a CP shorter than the existing CP length.

[0149] The above-described CP insertion method can effectively shorten the CP length, thereby reducing system overhead and increasing system throughput.

[0150] In some embodiments, the second information also includes at least one of the following: Information related to the frequency domain resources of the first uplink channel or signal; Information related to the time-domain resources of the first uplink channel or signal; The information related to the frequency domain resources of the first uplink channel or signal includes: second indication information, used to indicate the frequency domain location for transmitting the first uplink channel or signal; The information related to the time-domain resources of the first uplink channel or signal includes at least one of the following: Length information of the first time-domain resource; Location information of resources in the first time domain; First time domain resource repetition indication information.

[0151] In this embodiment, the length information of the first time domain resource may include the length value of the first time domain resource. Then, the UE can directly obtain the number of TTIs, time slots or OFDM symbols occupied by the subcarrier used when transmitting the first uplink channel or signal in the time domain through the length value of the first time domain resource.

[0152] In this embodiment, the length information of the first time domain resource may include the length index of the first time domain resource. Then, the UE can obtain the number of TTIs, time slots or OFDM symbols occupied by the subcarrier used when transmitting the first uplink channel or signal in the time domain through the length index of the first time domain resource.

[0153] In this embodiment, the location information of the first time domain resource may include the location index of the first time domain resource. Then, the UE can use the location index of the first time domain resource to map to the number of TTIs, the number of time slots, or the number of OFDM symbols to know the interval between the DCI information indicating the location index of the first time domain resource and the start time of the first uplink channel or signal.

[0154] In this embodiment, the first time-domain resource duplication indication information can indicate whether the first time-domain resource is repeated, and the length of the repeated first time-domain resource, etc.

[0155] In some embodiments, the second indication information for indicating the frequency domain location of transmitting the first uplink channel or signal may include one of the following: A first indication field used to directly indicate the frequency domain location; A second indication field is used to indicate the frequency domain location.

[0156] In the above embodiments, the base station can directly indicate the frequency domain position for transmitting the first uplink channel or signal through a single subcarrier frequency domain position indication field in the DCI signaling (which can correspond to the first indication field mentioned above). That is, the UE can obtain the frequency domain position for the first uplink channel or signal through a single subcarrier frequency domain position indication field in the DCI signaling.

[0157] In the above embodiments, the base station can indicate the frequency domain location for transmitting the first uplink channel or signal through a combination of multiple indication fields (which may correspond to the second indication field in this document). That is, the UE can obtain the frequency domain location for the first uplink channel or signal through a combination of multiple indication fields.

[0158] Optionally, the second indication field includes at least two of the following: An indication field used to indicate the location of a resource block group (RBG) in the first bandwidth of uplink transmission; Indication field used to indicate the position of subcarriers in RBG; Indication field used to indicate the position of PRB in RBG; An indication field used to indicate the location of the PRB in the first bandwidth; An indication field used to indicate the position of subcarriers in the PRB; An indication field used to indicate the position of a subcarrier group in the first bandwidth; An indication field used to indicate the position of a subcarrier in a subcarrier group.

[0159] In some embodiments, the second indication field may include: an indication field for indicating the position of the RBG in the first bandwidth of the uplink transmission, and an indication field for indicating the position of the subcarrier in the RBG.

[0160] In some embodiments, the second indication field may include: an indication field for indicating the position of the RBG in the first bandwidth of the uplink transmission, an indication field for indicating the position of the PRB in the RBG, and an indication field for indicating the position of the subcarrier in the PRB.

[0161] In some embodiments, the second indication field may include: an indication field for indicating the location of a PRB in the first bandwidth and an indication field for indicating the location of a subcarrier in the PRB.

[0162] In some embodiments, the second indication field may include: an indication field for indicating the position of a subcarrier group in the first bandwidth of the uplink transmission, and an indication field for indicating the position of a subcarrier in the subcarrier group.

[0163] In some embodiments, the information relating to the frequency domain resources of the first uplink channel or signal further includes at least one of the following: The third indication information is used to indicate whether frequency hopping is enabled; The fourth indication information is used to indicate the frequency hopping pattern; Information on carrier protection intervals.

[0164] In some embodiments, the method further includes: determining the transport block size based on the second information.

[0165] In some embodiments, determining the transport block size based on the second information includes: Based on the length information of the first time domain resource, determine the number of resource units (REs) occupied by the transport block; The number of bits transmitted in a transport block is determined based on the modulation and coding order (MCS) and the number of transport elements (REs) occupied by the transport block.

[0166] In the above embodiments, the UE can determine the number of TTIs or time slots occupied by the subcarriers used when transmitting the first uplink channel or signal in the time domain, as well as the number of OFDM symbols in one TTI or time slot, by using the length information of the first time domain resource. This allows the UE to determine the number of REs occupied during single-layer transmission of the transport block, and then combine this with the modulation and coding order to obtain the number of bits transmitted in a single layer of the transport block. Furthermore, the number of bits transmitted in the transport block can also be obtained by combining this with the number of layers.

[0167] It should be noted that the modulation and coding order can be included in the configuration information mentioned above.

[0168] In some embodiments, transmitting a first uplink channel or signal includes: Based on the first instruction information, determine the uplink authorization; Based on the uplink authorization, send the first uplink channel or signal.

[0169] In this embodiment, the UE can determine uplink grant and send the first uplink channel or signal after obtaining first indication information related to the subcarrier spacing of the first uplink channel or signal, thereby ensuring communication performance.

[0170] In some embodiments, in addition to the methods of the above embodiments, the method may further include: The UE sends capability information to the base station, wherein the capability information may include at least one of the following: Information on the UE's ability to support a single-carrier transmission model; Information on the UE's ability to support subcarrier interval switching; Information on the indexes of various subcarrier intervals supported by the UE.

[0171] This disclosure also provides a method performed by a base station in a wireless communication system, the method comprising: Send first information to the user equipment (UE), the first information including configuration information related to multiple subcarrier spacings of the uplink channel or signal; Send second information to the UE, the second information including first indication information related to the subcarrier spacing among the multiple subcarrier spacings; Receive the first uplink channel or signal sent by the UE; The subcarrier spacing of the first uplink channel or signal is determined based on the first indication information and the configuration information.

[0172] It should be noted that the configuration information and related information for the second information can be found in the above text. Figure 4 The relevant details will not be repeated here.

[0173] In some embodiments, receiving a first uplink channel or signal transmitted by the UE includes: The UE receives a first uplink channel or signal sent according to the uplink grant, wherein the uplink grant is determined based on the first indication information.

[0174] The following is in conjunction with the appendix Figure 5-14 The implementation process of an uplink transmission scheme based on different subcarrier intervals provided in this disclosure is described in detail.

[0175] This disclosure provides a frame structure, as detailed below: 1.1 Time-Frequency Domain Resource Block The transmitted uplink physical channel or signal occupies a single-tone subcarrier in the frequency domain, and the carrier spacing of this subcarrier can be flexibly selected to achieve multiple rates. In the time domain, the length of the scheduling unit, such as the transmission time interval (TTI) and / or the time slot length, can be related to the frequency domain subcarrier spacing.

[0176] Different subcarrier intervals correspond to different scheduling unit lengths (TTI) and / or timeslot lengths. For example, the scheduling unit length (TTI) and / or timeslot length are scaled proportionally to the subcarrier interval; or they can be independent of the subcarrier interval, such as predefined or configured fixed values, for example, values ​​of 0.5ms, 1ms, 2ms, 4ms, etc.

[0177] In Example 1, the subcarrier spacing of the uplink physical channel or signal can be at least one of the items in Table 1.1-1 below.

[0178]

[0179] Table 1.1-1 In Example 2, the subcarrier spacing of the uplink physical channel or signal can be at least one of the items in Table 1.1-2 below.

[0180]

[0181] Table 1.1-2 In Example 3, the subcarrier spacing of the uplink physical channel or signal can be at least one of the items in Tables 1.1-3 below.

[0182]

[0183] Table 1.1-3 In Example 4, the time-domain scheduling unit length (TTI) or time slot length of the uplink physical channel or signal associated with the subcarrier spacing can be at least one of the items in Tables 1.1-4 below.

[0184]

[0185] Table 1.1-4 In Example 5, the time-domain scheduling unit length (TTI) or time slot length of the uplink physical channel or signal associated with the subcarrier spacing can be at least one of the items in Tables 1.1-5 below.

[0186]

[0187] Table 1.1-5 1.2 Number of OFDM symbols and CP Each time-domain scheduling unit (TTI) or time slot can contain N OFDM symbols, and the time length of each OFDM symbol is... The value of N should be less than or equal to the time-domain scheduling unit length (TTI) or the time slot length divided by the time length of each OFDM symbol.

[0188] To better suppress inter-symbol interference, a cyclic prefix (CP) can be inserted to design the number of OFDM symbols in a time-domain scheduling unit length (TTI) or time slot (N symbols). The length of the CP can be related to the subcarrier spacing. For example, in current 5G communication systems, the number of OFDM symbols in each TTI or time slot is 14, with 7 OFDM symbols forming a group. The CP length of the first OFDM symbol in each group is... The cyclic prefix length of other OFDM symbols in each group is ,in It is a constant. The length of the cyclic prefix can also be a predefined or configured value independent of the subcarrier spacing.

[0189] Considering that in NTN scenarios, the channels are mostly line-of-sight (LOS) environments, the delay spread value will be relatively small. Therefore, the need for cyclic prefixes is not as urgent as in terrestrial multipath channel environments. Thus, in NTN scenarios, a shorter cyclic prefix length can be considered, or cyclic prefixes can be inserted only for some symbols, such as inserting a cyclic prefix for every M OFDM symbols, or even not inserting cyclic prefixes at all, thereby achieving greater system throughput with lower overhead.

[0190] In Example 6, the value of each time-domain scheduling unit length (TTI) or N OFDM symbols in a time slot can be at least one of the values ​​in Table 1.2-1 below.

[0191]

[0192] Table 1.2-1 In Example 7, the value of each time-domain scheduling unit length (TTI) or N OFDM symbols in a time slot can be at least one of the values ​​in Table 1.2-2 below.

[0193]

[0194] Table 1.2-2 Example 8: The length of the cyclic prefix is ​​related to the subcarrier spacing. For example: See Figure 5 For example, insert a cyclic prefix such as in a 5G communication system.

[0195] Example 9 uses a shorter cyclic prefix length.

[0196] Assuming a configuration with a subcarrier spacing greater than 15kHz inserts a cyclic prefix of one OFDM length, taking a subcarrier spacing of 30kHz as an example, the insertion methods using a shorter cyclic prefix length can include the following: The first method: Each time-domain scheduling unit (TTI) or time slot consists of 10 OFDM symbols grouped together, with the cyclic prefix length of the first OFDM symbol in each group being [length missing]. The cyclic prefix length of other OFDM symbols in each group is ,in It is a constant; see [reference needed]. Figure 6 As shown in Figure (a).

[0197] The second method: Within each Time Domain Scheduling Unit (TTI), every 7 OFDM symbols form a group, and the cyclic prefix length of the first OFDM symbol in each group is... , No cyclic prefix is ​​inserted for other OFDM symbols in each group, where It is a constant; see [reference needed]. Figure 6 As shown in Figure (b).

[0198] The third method: without inserting a loop prefix, see [link to relevant documentation]. Figure 6 As shown in Figure (c).

[0199] After adopting the above scheme, the overhead caused by the cyclic prefix can be reduced from the current 6.67% to 3.3% or 0%.

[0200] 1.3 Location of the reference signal Reference signals can be used to assist the receiver in demodulation, tracking phase information, and probing the uplink channel. A well-designed reference signal can improve the performance of the entire communication system.

[0201] In the single-tone frame structure described above, the reference signal can occupy one or more of the N OFDM symbols in each time-domain scheduling unit (TTI) or time slot, for example, see [link to relevant documentation]. Figure 7 As shown in Figures (a) and (b), the location of the reference signal can be predefined or configured by the network.

[0202] This disclosure also provides a scheme for scheduling and transmitting uplink channels or signals, which may specifically include the following: 2.1 Scheme for determining subcarrier spacing Section 1.1 above describes a configuration option for multiple subcarrier spacings for a single-tone uplink channel or signal. The user equipment's (UE) ability to support single-tone transmission mode can be reported to the network device via capability information. The UE's ability to support the switching of the aforementioned multiple subcarrier spacings can also be reported to the network device via capability information. The index of the multiple subcarrier spacings supported by the UE can be reported to the network device via RRC information, MAC information, or DCI information sent by the network device. The UE can obtain subcarrier spacing indication information through RRC information, MAC information, or DCI information sent by the network device. For example, a Z-bit indication field, where Z is 3, is used to indicate the index corresponding to the subcarrier spacing. The UE uses the subcarrier spacing corresponding to this index for uplink channel or signal transmission, such as... Figure 8-1 As shown. Alternatively, the user equipment can also obtain relevant configuration information for the uplink channel or signal through RRC or MAC information sent by the network device, and further obtain subcarrier spacing indication information through the DCI dynamic indication sent by the network device, such as a Z-bit indication field, for example, Z with a value of 3, used to indicate the index corresponding to the subcarrier spacing. The user equipment uses the subcarrier spacing corresponding to the index for uplink channel or signal transmission, such as... Figure 8-2 As shown in the diagram. It should be noted that the steps in the above illustration do not have a fixed order.

[0203] The configuration information may include one or more of the following: transmission mode (sing-tone mode or multi-carrier mode), multiple subcarrier spacing switching indications, configuration information for multiple subcarrier spacings (CP length, CP insertion method, etc.), indexes for multiple subcarrier spacings, uplink system bandwidth or BWP bandwidth, number of subcarriers on this bandwidth, number of PRBs in the uplink system bandwidth or BWP bandwidth, number of subcarriers in each PRB, number of carrier groups in the uplink system bandwidth or BWP bandwidth, uplink frequency domain resource allocation type, frequency domain hopping related configuration, time domain resource length information, number of time scheduling unit length (TTI) or time slots, number of OFDM symbols, configuration of time scheduling unit length (TTI) or time slot length, and number of OFDM symbols in a time scheduling unit length (TTI) or time slot.

[0204] 2.2 Scheme for Obtaining Frequency Domain Location The transmission of uplink channels or signals can be dynamically scheduled. User equipment needs to obtain the location information of the time-frequency domain resources scheduled by the network equipment. There are multiple schemes to enable user equipment to obtain single-tone frequency domain location information.

[0205] Option 1: User equipment can obtain the frequency domain location information of its uplink channel or signal through the single-tone frequency domain location indication field in the DCI signaling. If the current system bandwidth or the BWP supports... If it is a single-tone, then the indicator field can be at least [number missing]. bits, of which This indicates rounding up. In other words, the base station can directly indicate the single-tone frequency domain location. For example, an example of directly indicating the single-tone frequency domain location could be as follows: Figure 9-1 and Figure 9-2 As shown.

[0206] The value can be related to the subcarrier spacing and total bandwidth (system bandwidth or BWP bandwidth). For example, to maintain compatibility with existing 5G communication systems, The value can be ,in This indicates the total number of PRBs corresponding to the total uplink channel or signal bandwidth, with different subcarrier spacings corresponding to... Different values ​​result in different subcarrier spacings and corresponding... The values ​​are inversely proportional, meaning the larger the subcarrier spacing, the greater the corresponding... The smaller the value, the better. For example, The value of can also be ,in This indicates rounding down to the nearest integer. For example, The value of can also be ,in Indicates rounding down, carrier guard interval Used to suppress inter-carrier interference, its value can be a fixed value, a predefined value, or a network configuration value. This value can also be related to the subcarrier spacing. Different subcarrier spacings correspond to different... Predefined values, such as proportional values.

[0207] The value can be a fixed value or a predefined value. Similarly, there can be a carrier guard interval between different single-tones. Carrier guard interval The value of is the same as mentioned above.

[0208] Option 2: User equipment can obtain the frequency domain location information of its uplink channel or signal by combining multiple indication fields.

[0209] For example, a user equipment (UE) obtains the frequency domain location information of its uplink channel or signal by combining two indication fields. The UE first obtains the RBG location index using the indication of the BWP or RBG location in the system bandwidth, and then obtains the single-tone location index using the single-tone subcarrier location indication in the RBG. The combination of these two fields yields the single-tone index indication within the total bandwidth (system bandwidth or BWP bandwidth). This scheme requires a total of [number of bits]. + ,in This indicates rounding up to the nearest integer. This indicates the number of RBGs included in the total bandwidth. This indicates the number of single-tone subcarriers contained in an RBG.

[0210] For example, a user equipment (UE) obtains the frequency domain location information of its uplink channel or signal by combining three indication fields. The UE first obtains the RBG location index using the indication of the BWP or RBG location in the system bandwidth, then obtains the PRB location index using the PRB location indication in the RBG, and finally obtains the single-tone location index using the single-tone subcarrier location indication in the PRB. The combination of these three fields yields the single-tone index indication within the total bandwidth (system bandwidth or BWP bandwidth). This scheme requires a total of [number of bits]. + ,in This indicates rounding up to the nearest integer. This indicates the number of RBGs included in the total bandwidth. This indicates the number of PRBs contained in an RBG. This indicates the number of single-tone subcarriers contained in an RBG.

[0211] For example, a user equipment (UE) obtains the frequency domain location information of its uplink channel or signal by combining two indication fields. The UE first obtains the PRB location index using the indication of the BWP or PRB location in the system bandwidth, and then obtains the single-tone location index using the single-tone subcarrier location indication in the PRB. The combination of these two fields yields the single-tone index indication within the total bandwidth (system bandwidth or BWP bandwidth). This scheme requires a total of [number of bits]. + ,in This indicates rounding up to the nearest integer. This indicates the number of PRBs included in the total bandwidth. This indicates the number of single-tone subcarriers contained in a PRB.

[0212] In other words, a base station can indicate a single-tone frequency domain location by combining multiple indication fields. For example, an example of using multiple indication fields to indicate a single-tone frequency domain location can be seen in Figure 10-1 and... Figure 10-2 As shown.

[0213] In order to maintain compatibility with existing 5G communication systems, The value can be consistent with the existing specifications. Consistent with the definition, according to the Nominal RBG size P Calculations show that The value can be , This indicates the total number of PRBs corresponding to the total uplink channel or signal bandwidth, with different subcarrier spacings corresponding to... The values ​​are different. The value can be The fixed value is 12.

[0214] Without considering compatibility with existing communication systems, and / or The value can be ,in This indicates rounding down to the nearest integer. For example, The value of can also be ,in This indicates rounding down, with different subcarrier intervals corresponding to... The values ​​are different. The value can be a fixed value, such as 4, 8, 12, 16, 32, etc.

[0215] and / or The value can also be a predefined value, and different total bandwidths can correspond to different values; for the same total bandwidth, different subcarrier intervals correspond to the same and / or The value indicates that different subcarrier spacings correspond to the same RBG or PRB bandwidth. The number of single-tone subcarriers within the same RBG or PRB is... Different subcarrier spacings correspond to different numbers of single-tone subcarriers, and the number of single-tone subcarriers is inversely proportional to the subcarrier spacing. Similarly, different single-tone subcarriers can be separated by carrier guard intervals. .

[0216] Carrier guard interval It is used to suppress inter-carrier interference. Its value can be a fixed value, a predefined value, or a network configuration value. The value can also be related to the subcarrier spacing, such as being proportional.

[0217] Specifically, the frequency domain location information of the uplink channel or signal can also be obtained according to the frequency domain location information of the PRB. In order to be compatible with LTE or 5G systems and to save the number of bits used to indicate the frequency domain location, the user equipment can also obtain the frequency domain PRB location of the uplink channel or signal transmission through the frequency domain location information of the PRB carried in the DCI information, obtain the single-tone subcarrier spacing according to the subcarrier spacing indication information and the predefined or configured single-tone frequency domain subcarrier position within the PRB, and finally transmit the uplink channel or signal at this single-tone subcarrier position. For example, taking a PRB with a subcarrier spacing of 15kHz as an example, when the single-tone subcarrier spacing indication is 30kHz, the two middle subcarriers of the PRB can be predefined or configured to transmit single-tone subcarriers; when the single-tone subcarrier spacing indication is 60kHz, the four middle subcarriers of the PRB can be predefined or configured to transmit single-tone subcarriers; and when the single-tone subcarrier spacing indication is 120kHz, the eight middle subcarriers of the PRB can be predefined or configured to transmit single-tone subcarriers. The predefined or configured patterns or positions can also be the start and end points of the subcarriers within the PRB, or their movement according to certain rules, etc. For example, see: Figure 11 As shown.

[0218] Specifically, the frequency domain position information of the uplink channel or signal can also be obtained according to the frequency domain position information of a set of G subcarriers, where G is predefined or configured. The user equipment can obtain the frequency domain subcarrier position of the uplink channel or signal transmission through the subcarrier position information carried in the DCI information, and according to the single-tone subcarrier spacing obtained by the subcarrier spacing indication information and the predefined or configured single-tone frequency domain subcarrier position within the set of subcarriers, the uplink channel or signal is finally transmitted at this single-tone subcarrier position. For example, taking G subcarriers with a subcarrier spacing of 15kHz as an example, when the single-tone subcarrier spacing indication is 30kHz, two subcarriers in the subcarrier group can be predefined or configured to transmit single-tone subcarriers; when the single-tone subcarrier spacing indication is 60kHz, four subcarriers in the middle of the subcarrier group can be predefined or configured to transmit single-tone subcarriers; and when the single-tone subcarrier spacing indication is 120kHz, eight subcarriers in the middle of the subcarrier group can be predefined or configured to transmit single-tone subcarriers. The predefined or configured patterns or positions can also be moved at the beginning or end of this subcarrier group, according to certain rules, etc., for example: see [link to relevant documentation]. Figure 12 As shown.

[0219] 2.3 Scheme for Obtaining Time Domain Location The transmission of uplink channels or signals can be dynamically scheduled. In addition to obtaining the location information of the single-tone frequency domain resources scheduled by the network devices, user equipment also needs to obtain the time domain location information and time domain length information of the single-tone resources scheduled by the network devices.

[0220] Based on the aforementioned definitions of Time-Domain Scheduling Unit (TTI) or Time Slot Length, the time-domain length of a single-tone can be Y times the time-domain scheduling unit length (TTI) or time slot, or it can be... One OFDM symbol. The user equipment obtains the single-tone time-domain length value or time-domain length information index through the time-domain resource allocation field in the DCI signaling, and obtains the corresponding Y value or through this index. The value is used to obtain the time-domain length of the single-tone scheduling as Y times the time-domain scheduling unit length (TTI) (or time slot). OFDM symbols.

[0221] The Y time-domain scheduling unit lengths (TTIs) or time slots OFDM symbols can be consecutive to achieve simplicity, convenience, and reduced DCI overhead.

[0222] When the aforementioned time-domain scheduling unit length (TTI) or time slot length is related to the subcarrier spacing, for example, the value of Y can increase as the subcarrier spacing increases, thereby achieving the effect of different data rates corresponding to different subcarrier spacings.

[0223] When the aforementioned time-domain scheduling unit length (TTI) or time slot length is independent of the subcarrier spacing, such as being a predefined or configured fixed value, the value of Y can increase with the increase of the subcarrier spacing, or it can be a fixed value or a predefined value. This scheme can also achieve the effect of different data rates corresponding to different subcarrier spacings.

[0224] Additionally, the time domain length is Y times the time domain scheduling unit length (TTI) (or time slot) or OFDM symbols can also be fixed values ​​or predefined values.

[0225] The number of bits that can be transmitted in a single layer of a transport block is The achievable data rate can be determined by or The number of bits that can be transmitted in a single transport block is... .

[0226] in, The modulation order, The number of time-domain scheduling units (TTIs) or time slots. The number of OFDM symbols in a time-domain scheduling unit length (TTI) or time slot length. For a time-domain scheduling unit length (TTI), For one time slot length, V This represents the number of transmission layers.

[0227] Example 10: Time-domain length information index example. The value of the time-domain length information index can be at least one of the values ​​in Table 2.3-1 below.

[0228]

[0229] Table 2.3-1 Example 11: Time-domain length information index example. The value of the time-domain length information index can be at least one of the values ​​in Table 2.3-2 below.

[0230]

[0231] Table 2.3-2 Example 12: Time-domain length information index example. The value of the time-domain length information index can be at least one of the values ​​in Table 2.3-3 below.

[0232]

[0233] Table 2.3-3 Similarly, user equipment can also obtain the single-tone time-domain location index through the time-domain resource allocation field in the DCI signaling. The user equipment maps this index to the number of time-domain scheduling units (TTIs), time slots, or OFDM symbols to determine the interval between the DCI information indicating the single-tone time-domain location index and the start time of the uplink channel or signal. The interval between the DCI information indicating the single-tone time-domain location index and the start time of the uplink channel or signal. It can also be a fixed value or a predefined value, which can be related to the subcarrier spacing.

[0234] Time-domain repetition Considering the channel environment, network devices can also carry time-domain repetition indication information in the DCI to user equipment. Through this time-domain repetition indication information, user equipment can know the actual number of uplink transport blocks scheduled, and thus send uplink channels or signals in repetition mode on multiple transport blocks to obtain a certain repetition gain.

[0235] A schematic diagram of the location and length of time-domain resources can be found in [reference needed]. Figure 13-1 As shown.

[0236] A schematic diagram illustrating the temporal resource location and length of a single repetition can be found in [reference needed]. Figure 13-2 As shown.

[0237] 2.4 Frequency Domain Hopping Mode Considering the frequency selectivity of the channel, a frequency domain hopping mode can be introduced to increase the robustness of the single-tone uplink channel or signal. The user equipment obtains the indication information for the activation of the frequency domain hopping mode through DCI signaling. Hopping patterns (or designs) can be predefined or network-configured. If the hopping pattern is network-configured, the user equipment (UE) can obtain the indication information of the hopping pattern via DCI signaling or RRC signaling. The UE then transmits uplink channels or signals according to the hopping pattern.

[0238] Hopping patterns can have multiple arrangement schemes, and each can be defined in the time domain. Each TTI is grouped into two sets, with each group occupying the same frequency domain location. The value can be In the frequency domain, it can be evenly distributed across the BWP bandwidth or system bandwidth, each Each single-tone subcarrier is grouped into a set, and the frequency domain position of one single-tone subcarrier in each group is selected as the current frequency domain hopping pattern. The total number of single-tone subcarriers in the BWP bandwidth or system bandwidth.

[0239] like Figure 14 An example of a frequency-domain hopping mode is shown, specifically, the transport block consists of 4 TTIs, and .

[0240] 2.5 Scheme for Determining Transmission Power If the user equipment is configured in single-tone mode, it uses full power or maximum transmit power to transmit the uplink channel or signal.

[0241] 2.6 Uplink Authorization The information in the uplink grant can be related to the subcarrier spacing, such as the time domain position, time domain length, number of frequency domain subcarriers, modulation and coding scheme (MCS) level, etc. of the corresponding uplink scheduling.

[0242] The user equipment, according to the instruction information, transmits an uplink channel, and further includes: Based on the indicated information, determine the uplink grant (UL grant). Based on the aforementioned uplink authorization, an uplink channel or signal is transmitted.

[0243] 2.7 Scheme for Determining Uplink Transmission Mode This invention proposes a single-tone transmission mode (or described as a single-carrier mode), which can be configured or indicated via RRC / MAC / DCI signaling. This transmission mode can also be switched with other conventional modes. The indication method for the uplink transmission mode can be at least one of the following: Different DCI formats are used to indicate different transmission modes. The transmission mode is directly indicated via RRC signaling; Add a new 1-bit field to the DCI to indicate whether it is a single-tone transmission mode; Implicit indications in the DCI include the FDRA or TDRA fields, such as the use of new bit lengths in these fields indicating single-tone transmission mode. The indication is implied by the newly added subcarrier spacing indication field, FDRA, or TDRA field in the DCI. Once these new fields are configured in the DCI, it is a single-tone transmission mode.

[0244] This application also provides an electronic device including at least one controller / processor, and optionally, at least one transceiver coupled to the at least one controller / processor, the processor being configured to perform the steps of the method provided in any optional embodiment of this application.

[0245] Figure 15 The diagram shows a structural schematic of an electronic device to which an embodiment of the present invention applies, such as... Figure 15 As shown, Figure 15 The illustrated electronic device 4000 includes a processor 4001 and a memory 4003. The processor 4001 and memory 4003 are connected, for example, via a bus 4002. Optionally, the electronic device 4000 may further include a transceiver 4004, which can be used for data interaction between the electronic device and other electronic devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 4004 is not limited to one type, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of this application. Optionally, the electronic device may be a gNB, a UE, or other entities or nodes in a communication network.

[0246] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 4001 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0247] Bus 4002 may include a pathway for transmitting information between the aforementioned components. Bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 4002 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 15 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0248] The memory 4003 may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, other magnetic storage devices, or any other medium capable of carrying or storing computer programs and capable of being read by a computer, without limitation herein.

[0249] The memory 4003 stores computer programs that execute embodiments of this application, and its execution is controlled by the processor 4001. The processor 4001 executes the computer programs stored in the memory 4003 to implement the steps shown in the foregoing method embodiments.

[0250] This application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it can implement the steps and corresponding content of the aforementioned method embodiments.

[0251] This application also provides a computer program product, including a computer program that, when executed by a processor, can implement the steps and corresponding content of the aforementioned method embodiments.

[0252] The terms "first," "second," "third," "fourth," "1," "2," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in a sequence other than that shown in the illustrations or text descriptions.

[0253] It should be understood that although arrows indicate various operation steps in the flowcharts of this application's embodiments, the order in which these steps are implemented is not limited to the order indicated by the arrows. Unless explicitly stated herein, in some implementation scenarios of this application's embodiments, the implementation steps in each flowchart can be executed in other orders as required. Furthermore, some or all steps in each flowchart, based on the actual implementation scenario, may include multiple sub-steps or multiple stages. Some or all of these sub-steps or stages can be executed at the same time, and each sub-step or stage can also be executed at different times. In scenarios where execution times differ, the execution order of these sub-steps or stages can be flexibly configured according to requirements, and this application's embodiments do not limit this.

[0254] The above text and accompanying drawings are provided as examples only to help the reader understand this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes can be made to the illustrated embodiments and examples, and other similar implementations based on the technical concept of this application can be adopted without departing from the scope of this disclosure, and these modifications and modifications will also fall within the protection scope of the embodiments of this application.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, characterized in that, The method includes: Receive first information from the base station, the first information including configuration information related to multiple subcarrier spacings of the uplink channel or signal; Receive second information from the base station, the second information including first indication information related to the subcarrier interval among the plurality of subcarrier intervals; Send the first uplink channel or signal; The subcarrier spacing of the first uplink channel or signal is determined based on the first indication information and the configuration information.

2. The method according to claim 1, characterized in that, The configuration information includes at least one of the following: Uplink transmission mode; Switching indication information for multiple subcarrier intervals; Configuration information for various subcarrier spacings; Indexes of multiple subcarrier spacings; Information related to uplink frequency domain resources; Information related to uplink time domain resources.

3. The method according to claim 2, characterized in that, The uplink transmission mode includes: single-carrier transmission or multi-carrier transmission; The indication method for the uplink transmission mode includes at least one of the following: Indicated via downlink control information in DCI format; Instructions via Radio Resource Control (RRC) signaling; Indicated by the information field in DCI.

4. The method according to claim 3, characterized in that, The scheme in which the uplink transmission mode is indicated by the information field in the DCI includes at least one of the following: Indicated by the first information field in the DCI; Frequency domain resource allocation (FDRA) indication field is used in DCI; The time-domain resource allocation (TDRA) in the DCI indicates the domain indication.

5. The method according to claim 3, characterized in that, The uplink transmission mode is single-carrier transmission, and the first uplink channel or signal is transmitted through the maximum transmit power of the UE.

6. The method according to claim 1, characterized in that, The first uplink channel or signal is transmitted on a single subcarrier, and the first uplink channel or signal is transmitted at the maximum transmit power of the UE.

7. The method according to claim 2, characterized in that, The relevant information regarding the uplink frequency domain resources includes one of the following: The first bandwidth used for uplink transmission; The number of subcarriers in the first bandwidth; The number of Physical Resource Blocks (PRBs) in the first bandwidth; The number of subcarriers in each PRB; The number of carrier groups in the first bandwidth; The number of Resource Block Groups (RBGs) in the first bandwidth; The number of subcarriers or PRBs in each RBG; The allocation type of uplink frequency domain resources; Frequency hopping related configurations.

8. The method according to claim 7, characterized in that, The number of subcarriers is related to the subcarrier spacing and the first bandwidth, or the number of subcarriers is related to the subcarrier spacing and the bandwidth of the PRB, or the number of subcarriers is predefined.

9. The method according to claim 7, characterized in that, There is a frequency domain carrier guard interval between different subcarriers.

10. The method according to claim 2, characterized in that, The relevant information of the uplink time domain resources includes one of the following: Length information of time-domain resources; The length of a time unit; The number of Orthogonal Frequency Division Multiplexing (OFDM) symbols in one of the time units; Redundant configuration of time-domain resources.

11. The method according to claim 10, characterized in that, The length of the time unit is related to the subcarrier interval, or the length of the time unit is predefined.

12. The method according to claim 10, characterized in that, The length information of the time resource is related to the subcarrier spacing, or the length information of the time resource is predefined.

13. The method according to claim 2, characterized in that, The configuration information for the various subcarrier intervals includes: the length of the cyclic prefix (CP) corresponding to each subcarrier interval, and / or, the insertion method of the CP; The insertion methods of the CP include: A portion of the OFDM symbols in the time unit corresponding to the subcarrier interval are inserted into the CP; or, All OFDM symbols in the time unit corresponding to the subcarrier interval are not inserted with a CP.

14. The method according to any one of claims 1-13, characterized in that, The second information also includes at least one of the following: Information related to the frequency domain resources of the first uplink channel or signal; Information related to the time-domain resources of the first uplink channel or signal; The information related to the frequency domain resources of the first uplink channel or signal includes: second indication information, used to indicate the frequency domain location for transmitting the first uplink channel or signal; The information related to the time-domain resources of the first uplink channel or signal includes at least one of the following: Length information of the first time-domain resource; Location information of resources in the first time domain; First time domain resource repetition indication information.

15. The method according to claim 14, characterized in that, The second indication information includes one of the following: A first indication field used to directly indicate the frequency domain location; A second indication field used to indicate the frequency domain location; The second indication field includes at least two of the following: An indication field used to indicate the location of a resource block group (RBG) in the first bandwidth of uplink transmission; Indication field used to indicate the position of subcarriers in RBG; Indication field used to indicate the position of PRB in RBG; An indication field used to indicate the location of the PRB in the first bandwidth; An indication field used to indicate the position of subcarriers in the PRB; An indication field used to indicate the position of a subcarrier group in the first bandwidth; An indication field used to indicate the position of a subcarrier in a subcarrier group.

16. The method according to claim 14, characterized in that, The information related to the frequency domain resources of the first uplink channel or signal also includes at least one of the following: The third indication information is used to indicate whether frequency hopping is enabled; The fourth indication information is used to indicate the frequency hopping pattern; Information on carrier protection intervals.

17. The method according to claim 14, characterized in that, The method further includes: Based on the second information, the transport block size is determined.

18. The method according to claim 17, characterized in that, Determining the transport block size based on the second information includes: Based on the length information of the first time-domain resource, determine the number of resource units (REs) occupied by the transport block; The number of bits transmitted by the transport block is determined based on the modulation and coding order (MCS) and the number of REs occupied by the transport block.

19. The method according to any one of claims 1-18, characterized in that, The transmission of the first uplink channel or signal includes: Based on the first indication information, an uplink authorization is determined; Based on the uplink authorization, the first uplink channel or signal is transmitted.

20. A user equipment in a wireless communication system, characterized in that, include: A transceiver, and at least one processor coupled to the transceiver, the at least one processor being configured to perform the method of any one of claims 1 to 19.

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