Communication methods, communication device, communication system and storage medium

Abstract

Provided in the present disclosure are communication methods, an apparatus, a device and a storage medium. A method comprises: determining a first frequency hopping mode, the first frequency hopping mode being a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel (NPRACH) on the basis of an orthogonal cover code (OCC) sequence; and, on the basis of the first frequency hopping mode and the OCC sequence, transmitting the NPRACH of a terminal. The methods of the present disclosure enable multiple users to transmit the NPRACH on the same time frequency resource by means of frequency hopping, thereby achieving uplink capacity enhancement, and improving uplink transmission efficiency. In addition, transmission by means of frequency hopping can also reduce the transmission interference of the NPRACH.

Description

Communication method, communication device, communication system, and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, a communication device, a communication system, and a storage medium. Background Art

[0002] In the Internet of Things Non-terrestrial Network (IoTNTN) system, the Orthogonal Cover Code (OCC) technology is introduced for the narrowband physical random access channel (NPRACH) sent by terminals to perform multi-user multiplexing transmission on the same time-frequency resources to achieve uplink capacity enhancement. Optionally, when sending NPRACH based on the OCC technology, the terminal usually performs frequency hopping on the NPRACH to reduce transmission interference and ensure link transmission performance. However, how to perform frequency hopping on the NPRACH sent based on the OCC technology is a technical problem that needs to be solved urgently.

[0003] Summary of the Invention

[0004] The present disclosure provides a communication method, a communication device, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal and includes:

[0006] Determining a first frequency hopping mode, where the first frequency hopping mode is: a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0007] The NPRACH of the terminal is sent based on the first frequency hopping mode and the OCC sequence.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a network device. The method includes:

[0009] Determining a first frequency hopping mode, where the first frequency hopping mode is: a frequency hopping mode adopted by the terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0010] Receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0011] According to a third aspect of an embodiment of the present disclosure, a communication method is provided for use in a communication system, the communication system including a terminal and a network device, the method including:

[0012] The terminal determines a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0013] The terminal sends the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence;

[0014] The network device determines a first frequency hopping mode;

[0015] The network device receives the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0017] a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0018] A transceiver module is configured to send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0020] a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted by a terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0021] A transceiver module is configured to receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0023] one or more processors;

[0024] The processor is used to call instructions to enable the communication device to execute the communication method described in any one of the first aspect to the second aspect.

[0025] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a terminal and a network device, wherein the network device is configured to implement the communication method described in the first aspect, and the terminal is configured to implement the communication method described in the second aspect.

[0026] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first to second aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0028] FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0029] FIG2A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0030] FIG2B is a schematic diagram illustrating a first frequency hopping mode according to an embodiment of the present disclosure;

[0031] FIG2C is a schematic diagram illustrating a first frequency hopping mode according to an embodiment of the present disclosure;

[0032] FIG3A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0033] FIG3B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0034] FIG4A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0035] FIG4B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0036] FIG5 is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0037] FIG6A is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0038] FIG6B is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure;

[0039] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0040] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The embodiments of the present disclosure provide a communication method, a communication device, a communication system, and a storage medium.

[0042] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by a terminal. The method includes:

[0043] Determining a first frequency hopping mode, where the first frequency hopping mode is: a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0044] The NPRACH of the terminal is sent based on the first frequency hopping mode and the OCC sequence.

[0045] In the above embodiment, a specific method for frequency hopping NPRACH transmitted based on the OCC technology is provided. By executing the method of the present disclosure, multiple users can frequency hop and transmit NPRACH on the same time-frequency resources, thereby achieving uplink capacity enhancement and improving uplink transmission efficiency. In addition, frequency hopping transmission can also reduce NPRACH transmission interference and ensure link transmission performance.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the multi-user multiplexing transmission of the NPRACH includes at least one of the following:

[0047] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;

[0048] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH;

[0049] Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

[0050] In combination with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

[0051] In combination with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in the M2 symbol groups of the NPRACH, where M2 is a positive integer.

[0052] In combination with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

[0053] In the above embodiment, multiple implementation modes of multi-user multiplexing transmission of the terminal NPRACH are defined so that multi-user multiplexing transmission of the NPRACH can be successfully performed, uplink capacity enhancement is achieved, and uplink transmission efficiency is improved.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the first frequency hopping mode is: no frequency hopping.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within the Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows;

[0056] Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, there is a first offset value between frequency domain resources of different Y1 first time domain windows; the first offset value is determined using at least one of the following methods:

[0058] determining the first offset value based on a pseudo-random sequence;

[0059] Determine the first offset value based on a preset protocol rule;

[0060] Determining the first offset value based on protocol agreement;

[0061] determining the first offset value based on a network device configuration;

[0062] The first offset value is determined based on a network device indication.

[0063] In combination with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows;

[0064] Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, there is a second offset value between frequency domain resources of different Y2 second time domain windows; the second offset value is determined using at least one of the following methods:

[0066] determining the second offset value based on a pseudo-random sequence;

[0067] Determine the second offset value based on a preset protocol rule;

[0068] Determine the second offset value based on protocol agreement;

[0069] determining the second offset value based on a network device configuration;

[0070] The second offset value is determined based on the network device indication.

[0071] In combination with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with a granularity of "B3 NPRACH transmissions", different time domain units within the Y3 third time domain windows correspond to the same frequency domain resources, and different frequency domain resources correspond between the Y3 third time domain windows;

[0072] Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, a third offset value exists between frequency domain resources of different Y3 third time domain windows; the third offset value is determined using at least one of the following methods:

[0074] determining the third offset value based on a pseudo-random sequence;

[0075] Determine the third offset value based on a preset protocol rule;

[0076] Determining the third offset value based on protocol agreement;

[0077] Determining the third offset value based on the network device configuration;

[0078] The third offset value is determined based on the network device indication.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0080] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0081] The same frequency hopping pattern is used between the L M2 symbol groups;

[0082] Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0084] Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources;

[0085] The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH;

[0086] Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments, there is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups;

[0088] There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions;

[0089] The fourth offset value and / or the fifth offset value are determined in at least one of the following ways:

[0090] determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence;

[0091] Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule;

[0092] Determining the fourth offset value and / or the fifth offset value based on protocol agreement;

[0093] Determining the fourth offset value and / or the fifth offset value based on a network device configuration;

[0094] The fourth offset value and / or the fifth offset value are determined based on the network device indication.

[0095] In combination with some embodiments of the first aspect, in some embodiments, the maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

[0096] In the above embodiment, the NPRACH transmitted based on the OCC technology can be frequency-hopped or not, thereby improving the flexibility of transmitting the NPRACH based on the OCC technology. In addition, the specific method of frequency-hopping the NPRACH transmitted based on the OCC technology is also defined, so that the terminal can successfully transmit the NPRACH based on the OCC technology by frequency hopping, reducing the transmission interference of the NPRACH and ensuring the link transmission performance.

[0097] In a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a network device. The method includes:

[0098] Determining a first frequency hopping mode, where the first frequency hopping mode is: a frequency hopping mode adopted by the terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0099] Receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0100] In the above embodiment, a specific method for frequency hopping NPRACH transmitted based on the OCC technology is provided. By executing the method of the present disclosure, multiple users can frequency hop and transmit NPRACH on the same time-frequency resources, thereby achieving uplink capacity enhancement and improving uplink transmission efficiency. In addition, frequency hopping transmission can also reduce NPRACH transmission interference and ensure link transmission performance.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the multi-user multiplexing transmission of the NPRACH includes at least one of the following:

[0102] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;

[0103] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH;

[0104] Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

[0105] In combination with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

[0106] In combination with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in the M2 symbol groups of the NPRACH, where M2 is a positive integer.

[0107] In combination with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

[0108] In combination with some embodiments of the second aspect, in some embodiments, the first frequency hopping mode is: no frequency hopping.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within the Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows;

[0110] Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

[0111] In conjunction with some embodiments of the second aspect, in some embodiments, there is a first offset value between frequency domain resources of different Y1 first time domain windows; the first offset value is determined in at least one of the following ways:

[0112] determining the first offset value based on a pseudo-random sequence;

[0113] Determine the first offset value based on a preset protocol rule;

[0114] Determining the first offset value based on protocol agreement;

[0115] The method further comprises:

[0116] The first offset value is configured and / or indicated to the terminal.

[0117] In conjunction with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows;

[0118] Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

[0119] In conjunction with some embodiments of the second aspect, in some embodiments, there is a second offset value between frequency domain resources of different Y2 second time domain windows; the second offset value is determined using at least one of the following methods:

[0120] determining the second offset value based on a pseudo-random sequence;

[0121] Determine the second offset value based on a preset protocol rule;

[0122] Determine the second offset value based on protocol agreement;

[0123] The method further comprises:

[0124] The second offset value is configured and / or indicated to the terminal.

[0125] In combination with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with a granularity of "B3 NPRACH transmissions", different time domain units within the Y3 third time domain windows correspond to the same frequency domain resources, and different frequency domain resources correspond between the Y3 third time domain windows;

[0126] Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

[0127] In conjunction with some embodiments of the second aspect, in some embodiments, there is a third offset value between frequency domain resources of different Y3 third time domain windows; the third offset value is determined using at least one of the following methods:

[0128] determining the third offset value based on a pseudo-random sequence;

[0129] Determine the third offset value based on a preset protocol rule;

[0130] Determining the third offset value based on protocol agreement;

[0131] The method further comprises:

[0132] The third offset value is configured and / or indicated to the terminal.

[0133] In conjunction with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0134] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0135] The same frequency hopping pattern is used between the L M2 symbol groups;

[0136] Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

[0137] In conjunction with some embodiments of the second aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0138] Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources;

[0139] The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH;

[0140] Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

[0141] In conjunction with some embodiments of the second aspect, in some embodiments, there is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups;

[0142] There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions;

[0143] The fourth offset value and / or the fifth offset value are determined in at least one of the following ways:

[0144] determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence;

[0145] Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule;

[0146] Determining the fourth offset value and / or the fifth offset value based on protocol agreement;

[0147] The method further comprises:

[0148] At least one of the fourth offset value and the fifth offset value is configured and / or indicated to the terminal.

[0149] In combination with some embodiments of the second aspect, in some embodiments, the maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

[0150] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0151] The first frequency hopping mode is configured and / or indicated to the terminal.

[0152] In a third aspect, an embodiment of the present disclosure provides a communication method for a communication system, wherein the communication system includes a terminal and a network device, and the method includes:

[0153] The terminal determines a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0154] The terminal sends the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence;

[0155] The network device determines a first frequency hopping mode;

[0156] The network device receives the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0157] In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

[0158] a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0159] A transceiver module is configured to send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0160] In conjunction with some embodiments of the fourth aspect, in some embodiments, the multi-user multiplexing transmission of the NPRACH includes at least one of the following:

[0161] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;

[0162] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH;

[0163] Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

[0164] In combination with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

[0165] In combination with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in the M2 symbol groups of the NPRACH, where M2 is a positive integer.

[0166] In combination with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

[0167] In combination with some embodiments of the fourth aspect, in some embodiments, the first frequency hopping mode is: no frequency hopping.

[0168] In conjunction with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within the Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows;

[0169] Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

[0170] In conjunction with some embodiments of the fourth aspect, in some embodiments, there is a first offset value between frequency domain resources of different Y1 first time domain windows; the first offset value is determined using at least one of the following methods:

[0171] determining the first offset value based on a pseudo-random sequence;

[0172] Determine the first offset value based on a preset protocol rule;

[0173] Determining the first offset value based on protocol agreement;

[0174] determining the first offset value based on a network device configuration;

[0175] The first offset value is determined based on a network device indication.

[0176] In conjunction with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows;

[0177] Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

[0178] In conjunction with some embodiments of the fourth aspect, in some embodiments, there is a second offset value between frequency domain resources of different Y2 second time domain windows; the second offset value is determined using at least one of the following methods:

[0179] determining the second offset value based on a pseudo-random sequence;

[0180] Determine the second offset value based on a preset protocol rule;

[0181] Determine the second offset value based on protocol agreement;

[0182] determining the second offset value based on a network device configuration;

[0183] The second offset value is determined based on the network device indication.

[0184] In conjunction with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with a granularity of "B3 NPRACH transmissions", different time domain units within the Y3 third time domain windows correspond to the same frequency domain resources, and different frequency domain resources correspond between the Y3 third time domain windows;

[0185] Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

[0186] In conjunction with some embodiments of the fourth aspect, in some embodiments, there is a third offset value between frequency domain resources of different Y3 third time domain windows; the third offset value is determined using at least one of the following methods:

[0187] determining the third offset value based on a pseudo-random sequence;

[0188] Determine the third offset value based on a preset protocol rule;

[0189] Determining the third offset value based on protocol agreement;

[0190] Determining the third offset value based on the network device configuration;

[0191] The third offset value is determined based on the network device indication.

[0192] In conjunction with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0193] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0194] The same frequency hopping pattern is used between the L M2 symbol groups;

[0195] Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

[0196] In conjunction with some embodiments of the fourth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0197] Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources;

[0198] The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH;

[0199] Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

[0200] In conjunction with some embodiments of the fourth aspect, in some embodiments, there is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups;

[0201] There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions;

[0202] The fourth offset value and / or the fifth offset value are determined in at least one of the following ways:

[0203] determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence;

[0204] Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule;

[0205] Determining the fourth offset value and / or the fifth offset value based on protocol agreement;

[0206] Determining the fourth offset value and / or the fifth offset value based on a network device configuration;

[0207] The fourth offset value and / or the fifth offset value are determined based on the network device indication.

[0208] In combination with some embodiments of the fourth aspect, in some embodiments, the maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

[0209] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:

[0210] a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted by a terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0211] A transceiver module is configured to receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0212] In conjunction with some embodiments of the fifth aspect, in some embodiments, the multi-user multiplexing transmission of the NPRACH includes at least one of the following:

[0213] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;

[0214] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH;

[0215] Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

[0216] In combination with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

[0217] In combination with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in the M2 symbol groups of the NPRACH, where M2 is a positive integer.

[0218] In combination with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

[0219] In combination with some embodiments of the fifth aspect, in some embodiments, the first frequency hopping mode is: no frequency hopping.

[0220] In conjunction with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within the Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows;

[0221] Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

[0222] In conjunction with some embodiments of the fifth aspect, in some embodiments, there is a first offset value between frequency domain resources of different Y1 first time domain windows; the first offset value is determined using at least one of the following methods:

[0223] determining the first offset value based on a pseudo-random sequence;

[0224] Determine the first offset value based on a preset protocol rule;

[0225] Determining the first offset value based on protocol agreement;

[0226] The method further comprises:

[0227] The first offset value is configured and / or indicated to the terminal.

[0228] In conjunction with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows;

[0229] Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

[0230] In conjunction with some embodiments of the fifth aspect, in some embodiments, there is a second offset value between frequency domain resources of different Y2 second time domain windows; the second offset value is determined using at least one of the following methods:

[0231] determining the second offset value based on a pseudo-random sequence;

[0232] Determine the second offset value based on a preset protocol rule;

[0233] Determine the second offset value based on protocol agreement;

[0234] The method further comprises:

[0235] The second offset value is configured and / or indicated to the terminal.

[0236] In conjunction with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with a granularity of "B3 NPRACH transmissions", different time domain units within the Y3 third time domain windows correspond to the same frequency domain resources, and different frequency domain resources correspond between the Y3 third time domain windows;

[0237] Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

[0238] In conjunction with some embodiments of the fifth aspect, in some embodiments, there is a third offset value between frequency domain resources of different Y3 third time domain windows; the third offset value is determined in at least one of the following ways:

[0239] determining the third offset value based on a pseudo-random sequence;

[0240] Determine the third offset value based on a preset protocol rule;

[0241] Determining the third offset value based on protocol agreement;

[0242] The method further comprises:

[0243] The third offset value is configured and / or indicated to the terminal.

[0244] In conjunction with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0245] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0246] The same frequency hopping pattern is used between the L M2 symbol groups;

[0247] Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

[0248] In conjunction with some embodiments of the fifth aspect, in some embodiments, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0249] Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources;

[0250] The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH;

[0251] Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

[0252] In conjunction with some embodiments of the fifth aspect, in some embodiments, there is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups;

[0253] There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions;

[0254] The fourth offset value and / or the fifth offset value are determined in at least one of the following ways:

[0255] determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence;

[0256] Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule;

[0257] Determining the fourth offset value and / or the fifth offset value based on protocol agreement;

[0258] The method further comprises:

[0259] At least one of the fourth offset value and the fifth offset value is configured and / or indicated to the terminal.

[0260] In combination with some embodiments of the fifth aspect, in some embodiments, the maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

[0261] In conjunction with some embodiments of the fifth aspect, in some embodiments, the method further includes:

[0262] The first frequency hopping mode is configured and / or indicated to the terminal.

[0263] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0264] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the network device is configured to execute the method described in the second aspect and the optional implementation of the second aspect.

[0265] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0266] In the ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0267] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0268] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0269] The present disclosure provides invention titles. In some embodiments, the terms "communication method" and "information processing method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.

[0270] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0271] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0272] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0273] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0274] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0275] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

[0276] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.

[0277] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.

[0278] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0279] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0280] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0281] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0282] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0283] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0284] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0285] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0286] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0287] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0288] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0289] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0290] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0291] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0292] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0293] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal and a network device. Optionally, the network device may include at least one of an access network device and a core network device.

[0294] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a narrowband Internet of Things (NB-IOT) device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0295] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0296] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0297] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0298] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or a group of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network, for example, includes at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC). Alternatively, the core network device may also be a location management function network element. Exemplarily, the location management function network element includes a location server (location server), which may be implemented as any one of the following: Location Management Function (LMF), Enhanced Serving Mobile Location Centre (E-SMLC), Secure User Plane Location (SUPL), and Secure User Plane Location Platform (SUPLLP).

[0299] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0300] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0301] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0302] FIG2A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0303] Step 2101: The network device configures and / or indicates a first frequency hopping mode.

[0304] Optionally, the network device may configure and / or indicate a first frequency hopping mode to the terminal, and the terminal may receive the first frequency hopping mode configured and / or indicated by the network device. Optionally, the first frequency hopping mode may be configured or indicated to the terminal by the network device based on a protocol agreement and / or autonomously determined.

[0305] Optionally, the first frequency hopping mode may be: a frequency hopping mode adopted by the terminal when performing multi-user multiplexing transmission on the NPRACH based on the OCC sequence.

[0306] Optionally, the OCC sequence may be an OCC sequence corresponding to the NPRACH of the terminal, and the NPRACHs of different terminals may correspond to different OCC sequences.

[0307] Optionally, the above-mentioned "multi-user multiplexing transmission" can be understood as: multiple terminals multiplexing and transmitting NPRACH on the same time-frequency resources. For example, when different terminals transmit NPRACH, the OCC sequence corresponding to the NPRACH of the terminal can be used to weight the NPRACH of the terminal, and each terminal can send its own weighted NPRACH to the network device on the same time-frequency resource. In addition, when the network device receives the weighted NPRACH sent by each terminal on the same time-frequency resource, it can determine the NPRACH of each terminal based on the OCC sequence corresponding to the NPRACH of each terminal, thereby realizing multiplexing and transmitting NPRACH by multiple terminals on the same time-frequency resource.

[0308] In some embodiments, the multi-user multiplexing transmission of the NPRACH may include at least one of the following:

[0309] The first type is multi-user multiplexing transmission of NPRACH based on NPRACH symbols (ie, symbol-based OCC multiplexing).

[0310] Optionally, when multi-user multiplexing transmission of NPRACH is implemented based on NPRACH symbols, a sequence value in the OCC sequence can be mapped to M1 symbols of NPRACH, where M1 is a positive integer, M1 is less than or equal to F, F is the total number of symbols transmitted N times by NPRACH, and N is the total number of repeated transmissions of NPRACH.

[0311] Optionally, the above-mentioned "mapping" can be understood as weighted processing (or called: weighted multiplication), and the above-mentioned "a sequence value in the OCC sequence can be mapped to M1 symbols of NPRACH" can be understood as: multiplying the NPRACH signal carried on the M1 symbols by a sequence value in the OCC sequence.

[0312] For example, assuming that the total number of symbols in one NPRACH transmission is 20, the 20 symbols can be represented by S(i), i=0,1...19, and assuming that the OCC sequence includes two sequence values, for example, W(0) and W(1), and M1=2, then: one sequence value of the OCC sequence can be continuously mapped to 2 symbols, at this time, W(0) of the OCC sequence can be mapped to S(0) and S(1) (that is, the NPRACH signal carried on symbols S(0) and S(1) can be multiplied by W(0)), and W(1) of the OCC sequence can be mapped to S( 2) and S(3) (i.e., the NPRACH signals carried on symbols S(2) and S(3) can be multiplied by W(1)); then, the OCC sequence is repeatedly mapped, such as: W(0) can be mapped to S(4) and S(5) (i.e., the NPRACH signals carried on symbols S(4) and S(5) can be multiplied by W(0)), W(1) of the OCC sequence can be mapped to S(6) and S(7) (i.e., the NPRACH signals carried on symbols S(6) and S(7) can be multiplied by W(1)), and so on, to complete the mapping of the OCC sequence to NPRACH. In addition, each terminal can use the above method to map the OCC sequence of the terminal's NPRACH to the NPRACH, thereby realizing multi-user multiplexing transmission of the terminal's NPRACH.

[0313] It should be noted that, since the NPRACH signal is an all-1 signal, after the OCC sequence is mapped to the NPRACH symbol, the NPRACH after OCC mapping is actually the OCC sequence.

[0314] The second type: multi-user multiplexing transmission of NPRACH implemented based on NPRACH symbol groups (ie, symbol-group based OCC multiplexing).

[0315] Optionally, when multi-user multiplexing transmission of NPRACH is implemented based on the NPRACH symbol group, a sequence value in the OCC sequence is mapped to a symbol in M2 symbol groups of NPRACH, where M2 is a positive integer, M2 is less than or equal to S, and S is the total number of symbol groups transmitted N times by NPRACH.

[0316] Optionally, the above-mentioned "mapping" can be understood as weighted multiplication, for example, and the above-mentioned "mapping a sequence value in the OCC sequence to a symbol in the M2 symbol group of NPRACH" can be understood as: multiplying the NPRACH signal carried by the symbols in the M2 symbol group by a sequence value in the OCC sequence.

[0317] For example, assuming that NPRACH includes 4 symbol groups, namely Symbol group #0, Symbol group #1, Symbol group #2, and Symbol group #3, and assuming that the OCC sequence of terminal m includes two sequence values, for example, W(0) and W(1), and M2=2, then: one sequence value of the OCC sequence can be continuously mapped to 2 symbol groups. At this time, W(0) of the OCC sequence can be mapped to Symbol group #0 and Symbol group #1 (that is, the NPRACH signals carried on Symbol group #0 and Symbol group #1 can be multiplied by W(0)), and W(1) of the OCC sequence can be mapped to Symbol group #2 and Symbol group #3 (that is, the NPRACH signals carried on Symbol group #2 and Symbol group #3 can be multiplied by W(1)). Furthermore, each terminal may use the above method to map the OCC sequence of the NPRACH of the terminal to the NPRACH, thereby realizing multi-user multiplexing transmission of the NPRACH of the terminal.

[0318] The third type: multi-user multiplexing transmission of NPRACH based on the number of repeated transmissions of NPRACH (ie, repetition-based OCC Multiplexing).

[0319] Optionally, when multi-user multiplexing transmission of NPRACH is implemented based on the number of repeated transmissions of NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of NPRACH, where M3 is a positive integer and is less than or equal to N.

[0320] Optionally, the above-mentioned “mapping” can be understood as weighted multiplication, for example, and the above-mentioned “mapping a sequence value in the OCC sequence to the symbol corresponding to the M3 transmission of NPRACH” can be understood as: multiplying the NPRACH signal carried on the symbol in the M3 transmission of NPRACH by a sequence value in the OCC sequence.

[0321] For example, assuming that the number of repeated transmissions of NPRACH is 4, namely repetition#0, repetition#1, repetition#2, and repetition#3, and assuming that the OCC sequence of terminal m includes two sequence values, for example, W(0) and W(1), and M2=2, then: one sequence value of the OCC sequence can be continuously mapped to 2 NPRACH transmissions. At this time, W(0) of the OCC sequence can be mapped to repetition#0 and repetition#1 (that is, the NPRACH signals carried on repetition#0 and repetition#1 can be multiplied by W(0)), and W(1) of the OCC sequence can be mapped to repetition#2 and repetition#3 (that is, the NPRACH signals carried on repetition#2 and repetition#3 can be multiplied by W(1)). In addition, each terminal can use the above method to map the OCC sequence of the terminal's NPRACH to the NPRACH, thereby realizing multi-user multiplexing transmission of the terminal's NPRACH.

[0322] The above is a detailed introduction to "multi-user multiplexing transmission of terminal NPRACH", and the above-mentioned first frequency hopping mode is essentially: the frequency hopping mode adopted by the terminal when performing multi-user multiplexing transmission of NPRACH based on the OCC sequence. Optionally, the above-mentioned first frequency hopping mode can be: no frequency hopping, that is, when the terminal performs multi-user multiplexing of NPRACH based on the OCC technology, the frequency hopping function is turned off by default; in other words, the multi-user multiplexing and frequency hopping of NPRACH based on the OCC sequence will not be used at the same time. Alternatively, the above-mentioned first frequency hopping mode can be: frequency hopping. Among them, when the first frequency hopping mode is: frequency hopping, the first frequency hopping mode can be different for the above-mentioned different multi-user multiplexing transmission modes (that is, the first to third modes mentioned above).

[0323] Specifically, in some embodiments, when the multi-user multiplexing transmission mode is the first one described above (i.e., when multi-user multiplexing transmission of NPRACH is implemented based on NPRACH symbols), the first frequency hopping mode may be: dividing the N transmissions of NPRACH into at least one first time domain window with a granularity of "B1 symbols", each first time domain window having a length of B1 symbols, different time domain units within Y1 first time domain windows corresponding to the same frequency domain resource, and different frequency domain resources corresponding to each other within Y1 first time domain windows; wherein the time domain unit may be a time slot, a symbol, a radio frame, or a radio subframe, the B1 is equal to the product of M1 and L, the L is the sequence length (OCC length) of the OCC sequence; and the Y1 is an integer greater than or equal to 1. Optionally, Y1 may be a protocol preset value or may be determined based on a preset rule, and the network device may also configure Y1 for the terminal. In some embodiments, Y1 may satisfy the following condition: Mod((N×G×H) / B1,Y1)=0, where G represents the number of symbol groups per single NPRACH transmission, H represents the number of symbols per symbol group, and N is the total number of NPRACH repetitions; "(N×G×H) / B1" represents the total number of first time domain windows in N NPRACH transmissions. The Mod function is a remainder function. Optionally, Mod((N×G×H) / B1,Y1)=0 means that the total number of first time domain windows in N NPRACH transmissions is an integer multiple of Y1.

[0324] Optionally, when the Y1 first time domain windows correspond to different frequency domain resources, a first offset value exists between the frequency domain resources of the Y1 first time domain windows; the first offset value may be determined in at least one of the following ways:

[0325] determining a first offset value based on the pseudorandom sequence;

[0326] Determine a first offset value based on a preset protocol rule;

[0327] A first offset value is determined based on a protocol preset value.

[0328] Optionally, the above-mentioned “determining the first offset value based on a pseudo-random sequence” is an existing technology and will not be introduced in detail in this disclosure.

[0329] Optionally, the distinction between "determining the first offset value based on a preset rule of the protocol" and "determining the first offset value based on a protocol agreement" can be: "Determining the first offset value based on a preset rule of the protocol" means: the protocol presets a rule for generating the first offset value. In this case, the rule for generating the first offset value can be first determined through the protocol preset, and then the first offset value can be generated based on the rule. Also, "determining the first offset value based on a protocol agreement" means: the protocol directly stipulates a specific value for the first offset value. In this case, the first offset value can be directly determined based on the protocol agreement.

[0330] Optionally, in some embodiments, the network device may further configure and / or indicate the first offset value to the terminal.

[0331] The following is an example of the first offset value:

[0332] Optionally, it is assumed that the N transmissions of NPRACH are divided into 4 first time domain windows, the frequency domain resources of each first time domain window are different, and the first offset values ​​between the 4 first time domain windows are {1, 6, -1} or {1, -6, -1} or {-1, 6, 1} or {-1, -6, 1}, wherein {1, 6, -1} is taken as an example for introduction. Generally speaking, the frequency domain resource position of the first first time domain window is known, for example, it can be agreed upon by the protocol, or the network device can autonomously determine and configure and / or Indicate to the terminal, and the "1" in {1,6,-1} may indicate that the second first time domain window is offset by 1 frequency domain unit relative to the first first time domain window in the first frequency domain direction, the "6" in {1,6,-1} may indicate that the third first time domain window is offset by 6 frequency domain units relative to the second first time domain window in the first frequency domain direction, and the "-1" in {1,6,-1} may indicate that the fourth first time domain window is offset by 1 frequency domain unit relative to the third first time domain window in the second frequency domain direction. The first frequency domain direction is opposite to the second frequency domain direction, and the frequency domain unit may be, for example, a subcarrier or a resource block (RB).

[0333] Optionally, the following introduces “the first frequency hopping mode corresponding to when the multi-user multiplexing transmission mode is the first one described above” by way of example.

[0334] Assume that the total number of repeated transmissions N of NPRACH is 4, one NPRACH transmission includes 4 symbol groups, and each symbol group includes 5 symbols. If Y1=2, L=5, and M1=1, then B1=M1×L=5. At this time, the 4 transmissions of NPRACH can be divided into four first time domain windows in sequence with "5 symbols" as the granularity, where the length of each first time domain window is 5 symbols, and since Y1=2, the symbols in the first first time domain window and the second first time domain window correspond to the same frequency domain resources, the symbols in the third first time domain window and the fourth first time domain window correspond to the same frequency domain resources, and there is a first offset value between the frequency domain resources corresponding to the symbols in the first first time domain window and the second first time domain window and the frequency domain resources corresponding to the symbols in the third first time domain window and the fourth first time domain window.

[0335] Optionally, in other embodiments, when the multi-user multiplexing transmission mode is the second one described above (i.e., when multi-user multiplexing transmission of NPRACH is implemented based on NPRACH symbol groups), the first frequency hopping mode may be: dividing the N NPRACH transmissions into at least one second time domain window with a granularity of "B2 symbol groups," wherein each second time domain window is B2 symbol groups long, different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows; wherein B2 is equal to the product of M2 and L, and Y2 is an integer greater than or equal to 1. Optionally, Y2 may be a protocol preset value or may be determined based on a preset rule, and the network device may also configure Y2 for the terminal. In some embodiments, Y2 may satisfy the following condition: Mod((N×G) / B2, Y2) = 0, where "(N×G) / B2" represents the total number of second time domain windows in the N NPRACH transmissions. Optionally, Mod((N×G) / B2, Y2)=0 means that the total number of second time domain windows in N NPRACH transmissions is an integer multiple of Y2.

[0336] Optionally, when the Y2 second time domain windows correspond to different frequency domain resources, a second offset value exists between the frequency domain resources of the Y2 different second time domain windows; the second offset value can be determined in at least one of the following ways:

[0337] determining a second offset value based on the pseudorandom sequence;

[0338] Determine a second offset value based on a preset protocol rule;

[0339] The second offset value is determined based on protocol conventions.

[0340] Optionally, the network device may further configure and / or indicate a second offset value to the terminal.

[0341] For a detailed introduction to this part, please refer to the above step description.

[0342] And, the second offset value is introduced as an example below:

[0343] Optionally, assuming that the N transmissions of NPRACH are divided into 4 second time domain windows, the frequency domain resources of each second time domain window are different, and the first offset value between the 4 second time domain windows is {1, 6, -1} or {1, -6, -1} or {-1, 6, 1} or {-1, -6, 1}, wherein {1, 6, -1} is taken as an example for introduction. Generally speaking, the frequency domain resource position of the first second time domain window is known, for example, it can be agreed upon by the protocol, or the network device can autonomously determine and configure and / or Indicate to the terminal, and the "1" in {1,6,-1} may indicate that the second second time domain window is offset by 1 frequency domain unit relative to the first second time domain window in the first frequency domain direction, the "6" in {1,6,-1} may indicate that the third second time domain window is offset by 6 frequency domain units relative to the second second time domain window in the first frequency domain direction, and the "-1" in {1,6,-1} may indicate that the fourth second time domain window is offset by 1 frequency domain unit relative to the third second time domain window in the second frequency domain direction. For a detailed introduction to the first frequency domain direction, the second frequency domain direction, and the frequency domain unit, please refer to the above description.

[0344] Optionally, the following introduces “the first frequency hopping mode corresponding to the second multi-user multiplexing transmission mode” by way of example.

[0345] For example, FIG2B is a schematic diagram of a first frequency hopping method according to an embodiment of the present disclosure. In FIG2B , a box represents a symbol group of NPRACH, and one NPRACH transmission includes 4 symbol groups, and a total of 4 repeated transmissions of NPRACH are performed. Assuming L=4, M2=1, N=4, and Y2=1, then B2=M2×L=1×4=4. At this time, as shown in FIG2B , the 4 transmissions of NPRACH are divided into 4 second time domain windows with a granularity of 4 symbol groups, wherein the length of each second time domain window is 4 symbol groups. As shown in FIG2B , the first second time domain window includes 4 symbol groups in the first transmission of NPRACH, the second second time domain window includes 4 symbol groups in the second transmission of NPRACH, the third second time domain window includes 4 symbol groups in the third transmission of NPRACH, and the fourth second time domain window includes 4 symbol groups in the fourth transmission of NPRACH. Moreover, since Y2=1, different symbols in each second time domain window correspond to the same frequency domain resources, there is a second offset value between the frequency domain resources corresponding to the symbols in the first second time domain window and the frequency domain resources corresponding to the symbols in the second first time domain window, there is a second offset value between the frequency domain resources corresponding to the symbols in the second second time domain window and the frequency domain resources corresponding to the symbols in the third first time domain window, and there is a second offset value between the frequency domain resources corresponding to the symbols in the third second time domain window and the frequency domain resources corresponding to the symbols in the fourth first time domain window.

[0346] The two second time domain windows correspond to different frequency domain resources.

[0347] Optionally, in some further embodiments, when the multi-user multiplexing transmission mode is the third one described above (i.e., multi-user multiplexing transmission of NPRACH is implemented based on the number of repeated NPRACH transmissions), the first frequency hopping mode may be: dividing the N NPRACH transmissions into at least one third time domain window with a granularity of "B3 NPRACH transmissions," each third time domain window having a length of B3 NPRACH transmissions, different time domain units within the Y3 third time domain windows corresponding to the same frequency domain resource, and different frequency domain resources between the Y3 third time domain windows corresponding to different frequency domain resources; wherein B3 is equal to the product of M3 and L, and Y3 is an integer greater than or equal to 1. Optionally, Y3 may be a protocol preset value or may be determined based on a preset rule, and the network device may also configure Y3 for the terminal. In some embodiments, Y3 may satisfy the following condition: Mod((N, Y3) = 0. Optionally, Mod((N, Y3) = 0 means that the total number of repeated NPRACH transmissions is an integer multiple of Y3.

[0348] Optionally, when the Y3 third time domain windows correspond to different frequency domain resources, a third offset value exists between the frequency domain resources of the Y3 different third time domain windows; the third offset value can be determined in at least one of the following ways:

[0349] determining a third offset value based on the pseudorandom sequence;

[0350] Determine a third offset value based on a preset protocol rule;

[0351] Determine a third offset value based on protocol agreement;

[0352] Optionally, the network device may further configure and / or indicate a third offset value to the terminal.

[0353] For a detailed introduction to this part, please refer to the above step description.

[0354] And, the third offset value is introduced as an example below:

[0355] Optionally, it is assumed that the N transmissions of NPRACH are divided into four third time domain windows, the frequency domain resources of each third time domain window are different, and the first offset value between the four third time domain windows is {1, 6, -1} or {1, -6, -1} or {-1, 6, 1} or {-1, -6, 1}, wherein {1, 6, -1} is taken as an example for introduction. Generally speaking, the frequency domain resource position of the first third time domain window is known, for example, it can be agreed upon by the protocol, or the network device autonomously determines and configures and / or indicates To the terminal, and, the "1" in {1,6,-1} may indicate that the second third time domain window is offset by 1 frequency domain unit relative to the first third time domain window in the first frequency domain direction, the "6" in {1,6,-1} may indicate that the third third time domain window is offset by 6 frequency domain units relative to the second third time domain window in the first frequency domain direction, and the "-1" in {1,6,-1} may indicate that the fourth third time domain window is offset by 1 frequency domain unit relative to the third third time domain window in the second frequency domain direction. Among them, for a detailed introduction to the first frequency domain direction, the second frequency domain direction, and the frequency domain unit, please refer to the above description.

[0356] Optionally, the following introduces “the first frequency hopping mode corresponding to when the multi-user multiplexing transmission mode is the third mode described above” by way of example.

[0357] Assume that the total number of repeated transmissions N of NPRACH is 4, one NPRACH transmission includes 4 symbol groups, and each symbol group includes 5 symbols. If Y3=1, L=2, and M3=1, then B3=M3×L=2. At this time, the 4 transmissions of NPRACH can be divided into two third time domain windows in sequence with the granularity of "2 NPRACH transmissions", where the length of each third time domain window is 2 NPRACH transmissions, and since Y3=1, different symbols in each third time domain window correspond to the same frequency domain resources, and there is a third offset value between the frequency domain resources corresponding to the symbols in the first third time domain window and the frequency domain resources corresponding to the symbols in the second third time domain window.

[0358] Optionally, in another embodiment, when the multi-user multiplexing transmission mode is the second mode described above (i.e., when multi-user multiplexing transmission of NPRACH is implemented based on NPRACH symbol groups), the first frequency hopping mode may include at least one of the following:

[0359] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0360] The same frequency hopping pattern is used between the L M2 symbol groups;

[0361] Different B2 symbol groups correspond to different frequency domain resources, and a second offset value exists between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L. For a detailed description of the second offset value here, please refer to the above embodiment description.

[0362] Optionally, when different symbol groups within the M2 symbol groups correspond to different frequency domain resources, a fourth offset value exists between the frequency domain resources of different symbol groups within the M2 symbol groups; the fourth offset value may be determined in at least one of the following ways:

[0363] determining a fourth offset value based on the pseudorandom sequence;

[0364] Determining a fourth offset value based on a preset protocol rule;

[0365] The fourth offset value is determined based on protocol agreement.

[0366] Optionally, the network device may further configure and / or indicate the fourth offset value to the terminal.

[0367] The principle of the fourth offset value is similar to that of the second offset value, and will not be repeated here.

[0368] For example, FIG2C is a schematic diagram of a first frequency hopping method according to an embodiment of the present disclosure. In FIG2C , a box represents a symbol group of NPRACH, and one NPRACH transmission includes 4 symbol groups, and a total of NPRACH transmissions are repeated 4 times. Optionally, assuming that L=2, M2=4, and N=4, as shown in FIG2C , different symbol groups within each 4-symbol group correspond to different frequency domain resources; the same frequency hopping pattern is used between two 4-symbol groups; and, since B2=M2×L=4×2=8, two different 8-symbol groups correspond to different frequency domain resources. Based on this, as shown in FIG2C , the above-mentioned first frequency hopping method is further introduced in detail: starting with the first symbol group of the four NPRACH transmissions, different symbol groups within the first four symbol groups correspond to different frequency domain resources, and the frequency hopping patterns of the 5th to 8th symbol groups are the same as the frequency hopping patterns of the first four symbol groups. With 8 symbol groups as the granularity, the first 8 symbol groups and the last 8 symbol groups correspond to different frequency domain resources, and different symbol groups within the first half of the four symbol groups in the last eight symbol groups (i.e., the 9th to 12th symbol groups) correspond to different frequency domain resources, and the frequency hopping patterns of the first half of the four symbol groups in the last eight symbol groups and the last half of the four symbol groups in the last eight symbol groups (i.e., the 13th to 16th symbol groups) are the same.

[0369] Optionally, in another embodiment, when the multi-user multiplexing transmission mode is the third mode described above (i.e., when multi-user multiplexing transmission of NPRACH is implemented based on the number of repeated transmissions of NPRACH), the first frequency hopping mode may include at least one of the following:

[0370] Different symbol groups within each M3 transmission of NPRACH correspond to different frequency domain resources;

[0371] The same frequency hopping pattern is used between the L M3 transmissions of NPRACH;

[0372] Different B3 transmissions of NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L. For a detailed description of the third offset value here, please refer to the above embodiment description.

[0373] Optionally, when different symbol groups within the M3 transmissions correspond to different frequency domain resources, a fifth offset value exists between the frequency domain resources of different symbol groups within the M3 transmissions; the fifth offset value may be determined in at least one of the following ways:

[0374] determining a fifth offset value based on the pseudorandom sequence;

[0375] Determining a fifth offset value based on a preset protocol rule;

[0376] The fifth offset value is determined based on protocol conventions.

[0377] Optionally, the network device may further configure and / or indicate the fifth offset value to the terminal.

[0378] For example, when L=2, M3=1, and N=4, the schematic diagram of the first frequency hopping method can also be as shown in Figure 2C above. At this time, referring to Figure 2C, different symbol groups in each transmission of NPRACH correspond to different frequency domain resources; the same frequency hopping pattern is used between the two transmissions of NPRACH; and, since B3=M3×L=1×2=2, different two transmissions of NPRACH correspond to different frequency domain resources. That is, starting with the first NPRACH transmission of the four NPRACH transmissions in Figure 2C, different symbol groups (i.e., the first four symbol groups) in the first NPRACH transmission correspond to different frequency domain resources, and the frequency hopping pattern of different symbol groups (i.e., the 5th to 8th symbol groups) in the second NPRACH transmission is the same as the frequency hopping pattern of different symbol groups in the first NPRACH transmission. Taking the second NPRACH transmission as the granularity, the first two NPRACH transmissions (i.e., the first 8 symbol groups) and the second two NPRACH transmissions (i.e., the last 8 symbol groups) correspond to different frequency domain resources, and different symbol groups (i.e., the 9th to 12th symbol groups) in the first NPRACH transmission in the second two NPRACH transmissions correspond to different frequency domain resources, and the frequency hopping pattern of the symbol groups in the first NPRACH transmission in the second two NPRACH transmissions and the symbol groups in the second NPRACH transmission in the second two NPRACH transmissions (i.e., the 13th to 16th symbol groups) are the same.

[0379] Optionally, in some embodiments, when frequency hopping is performed using the above-mentioned first frequency hopping method, the maximum frequency domain interval of the terminal in N repeated transmissions of NPRACH is less than or equal to a first threshold. Optionally, the first threshold can be, for example, 12 subcarriers.

[0380] Step 2102: The terminal determines a first frequency hopping mode.

[0381] For a detailed description of the first frequency hopping mode, please refer to the above embodiment.

[0382] Furthermore, the terminal may determine the first frequency hopping mode based on a protocol agreement, or the terminal may determine the first frequency hopping mode based on a configuration of a network device.

[0383] Step 2103: The terminal sends the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0384] For a detailed description of the OCC sequence, please refer to the above embodiment description.

[0385] Furthermore, the OCC sequence may be determined by the terminal based on at least one of the following methods:

[0386] Determine the OCC sequence based on the protocol preset table;

[0387] Determine the OCC sequence based on the configuration of the network device;

[0388] Determining an OCC sequence based on an indication from a network device;

[0389] The OCC sequence is determined based on the protocol preset sequence generation method.

[0390] Optionally, the terminal sending the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence may include: weighting the NPRACH based on the OCC sequence, determining the frequency domain resources of the symbols in the NPRACH according to the first frequency hopping mode, and then frequency hopping and sending the weighted NPRACH according to the determined frequency domain resources.

[0391] Furthermore, the terminal may send a weighted NPRACH of the terminal to the network device based on the first frequency hopping mode and the OCC sequence, and the network device may receive the weighted NPRACH sent by the terminal based on the first frequency hopping mode and the OCC sequence. The first frequency hopping mode at the network device may be determined autonomously by the network device, or may be determined by the network device based on a protocol agreement, and the OCC sequence at the network device may be directly determined by the network device, or may be determined by the network device based on a protocol preset table, or may be determined by the network device based on a protocol preset sequence generation method. Furthermore, when the network device receives the weighted NPRACH sent by the terminal based on the first frequency hopping mode and the OCC sequence, it can first determine the frequency domain resources of the symbols in the weighted NPRACH sent by the terminal based on the first frequency hopping mode, and then receive the weighted NPRACH sent by the terminal on the frequency domain resources. After that, the weighted NPRACH can be processed based on the determined OCC sequence corresponding to the terminal to determine the NPRACH corresponding to the terminal. For example, the value on each symbol in the weighted NPRACH can be divided by the corresponding OCC sequence value to determine the NPRACH.

[0392] In the above embodiment, a specific method for frequency hopping NPRACH transmitted based on the OCC technology is provided. By executing the method of the present disclosure, multiple users can frequency hop and transmit NPRACH on the same time-frequency resources, thereby achieving uplink capacity enhancement and improving uplink transmission efficiency. In addition, frequency hopping transmission can also reduce NPRACH transmission interference and ensure link transmission performance.

[0393] The communication method involved in the embodiments of the present disclosure may include at least one of steps 2101 to 2103. For example, step 2101 may be implemented as an independent embodiment, step 2102 may be implemented as an independent embodiment, step 2103 may be implemented as an independent embodiment, and step 2101+S2102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0394] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0395] FIG3A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method for a terminal, the method comprising:

[0396] Step 3101: Receive a first frequency hopping mode configured and / or indicated by a network device.

[0397] Step 3102: Determine the first frequency hopping mode.

[0398] Step 3103: Send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0399] For a detailed description of steps 3101-3103, please refer to the above embodiment description.

[0400] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3101 to 3102. For example, step 3101 may be implemented as an independent embodiment, step 3102 may be implemented as an independent embodiment, step 3103 may be implemented as an independent embodiment, and step 3101+step 3102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0401] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0402] FIG3B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a communication method for a terminal, the method comprising:

[0403] Step 3201: Determine a first frequency hopping mode.

[0404] Step 3202: Send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0405] Optionally, the first frequency hopping mode is a frequency hopping mode adopted when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence.

[0406] Optionally, the multi-user multiplexing transmission of the NPRACH includes at least one of the following:

[0407] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;

[0408] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH;

[0409] Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

[0410] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

[0411] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in M2 symbol groups of the NPRACH, where M2 is a positive integer.

[0412] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

[0413] Optionally, the first frequency hopping mode is: no frequency hopping.

[0414] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows;

[0415] Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

[0416] Optionally, a first offset value exists between frequency domain resources of different Y1 first time domain windows; the first offset value is determined in at least one of the following ways:

[0417] determining the first offset value based on a pseudo-random sequence;

[0418] Determine the first offset value based on a preset protocol rule;

[0419] Determining the first offset value based on protocol agreement;

[0420] determining the first offset value based on a network device configuration;

[0421] The first offset value is determined based on a network device indication.

[0422] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows;

[0423] Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

[0424] Optionally, a second offset value exists between frequency domain resources of different Y2 second time domain windows; and the second offset value is determined in at least one of the following ways:

[0425] determining the second offset value based on a pseudo-random sequence;

[0426] Determine the second offset value based on a preset protocol rule;

[0427] Determine the second offset value based on protocol agreement;

[0428] determining the second offset value based on a network device configuration;

[0429] The second offset value is determined based on the network device indication.

[0430] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with "B3 NPRACH transmissions" as the granularity, different time domain units within Y3 third time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond to each other between the Y3 third time domain windows;

[0431] Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

[0432] Optionally, a third offset value exists between frequency domain resources of different Y3 third time domain windows; the third offset value is determined in at least one of the following ways:

[0433] determining the third offset value based on a pseudo-random sequence;

[0434] Determine the third offset value based on a preset protocol rule;

[0435] Determining the third offset value based on protocol agreement;

[0436] Determining the third offset value based on the network device configuration;

[0437] The third offset value is determined based on the network device indication.

[0438] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0439] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0440] The same frequency hopping pattern is used between the L M2 symbol groups;

[0441] Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

[0442] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0443] Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources;

[0444] The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH;

[0445] Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

[0446] Optionally, there is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups;

[0447] There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions;

[0448] The fourth offset value and / or the fifth offset value are determined in at least one of the following ways:

[0449] determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence;

[0450] Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule;

[0451] Determining the fourth offset value and / or the fifth offset value based on protocol agreement;

[0452] Determining the fourth offset value and / or the fifth offset value based on a network device configuration;

[0453] The fourth offset value and / or the fifth offset value are determined based on the network device indication.

[0454] Optionally, a maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

[0455] For a detailed description of steps 3201-3202, please refer to the above embodiment description.

[0456] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3201 and 3202. For example, step 3201 may be implemented as an independent embodiment, step 3202 may be implemented as an independent embodiment, step 3203 may be implemented as an independent embodiment, and step 3201+step 3202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0457] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0458] FIG4A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method for a network device, the method comprising:

[0459] Step 4101: Configure and / or indicate a first frequency hopping mode.

[0460] Step 4102: Receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0461] For a detailed description of steps 4101-4102, please refer to the above embodiment description.

[0462] The communication method involved in the embodiments of the present disclosure may include at least one of steps 4101 and 4102. For example, step 4101 may be implemented as an independent embodiment, step 4102 may be implemented as an independent embodiment, step 4103 may be implemented as an independent embodiment, and step 4101+step 4102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0463] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0464] FIG4B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method for a network device, the method comprising:

[0465] Step 4201: Determine the first frequency hopping mode.

[0466] Step 4202: Receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0467] Optionally, the first frequency hopping mode is: a frequency hopping mode adopted by the terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence.

[0468] Optionally, the multi-user multiplexing transmission of the NPRACH includes at least one of the following:

[0469] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;

[0470] Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH;

[0471] Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

[0472] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

[0473] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in M2 symbol groups of the NPRACH, where M2 is a positive integer.

[0474] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

[0475] Optionally, the first frequency hopping mode is: no frequency hopping.

[0476] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows;

[0477] Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

[0478] Optionally, a first offset value exists between frequency domain resources of different Y1 first time domain windows; the first offset value is determined in at least one of the following ways:

[0479] determining the first offset value based on a pseudo-random sequence;

[0480] Determine the first offset value based on a preset protocol rule;

[0481] The first offset value is determined based on protocol agreement.

[0482] Optionally, the method further includes:

[0483] The first offset value is configured and / or indicated to the terminal.

[0484] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows;

[0485] Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

[0486] Optionally, a second offset value exists between frequency domain resources of different Y2 second time domain windows; and the second offset value is determined in at least one of the following ways:

[0487] determining the second offset value based on a pseudo-random sequence;

[0488] Determine the second offset value based on a preset protocol rule;

[0489] The second offset value is determined based on protocol agreement.

[0490] Optionally, the method further includes:

[0491] The second offset value is configured and / or indicated to the terminal.

[0492] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with "B3 NPRACH transmissions" as the granularity, different time domain units within Y3 third time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond to each other between the Y3 third time domain windows;

[0493] Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

[0494] Optionally, a third offset value exists between frequency domain resources of different Y3 third time domain windows; the third offset value is determined in at least one of the following ways:

[0495] determining the third offset value based on a pseudo-random sequence;

[0496] Determine the third offset value based on a preset protocol rule;

[0497] The third offset value is determined based on protocol agreement.

[0498] Optionally, the method further includes:

[0499] The third offset value is configured and / or indicated to the terminal.

[0500] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0501] Different symbol groups within each M2 symbol group correspond to different frequency domain resources;

[0502] The same frequency hopping pattern is used between the L M2 symbol groups;

[0503] Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

[0504] Optionally, when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following:

[0505] Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources;

[0506] The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH;

[0507] Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

[0508] Optionally, there is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups;

[0509] There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions;

[0510] The fourth offset value and / or the fifth offset value are determined in at least one of the following ways:

[0511] determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence;

[0512] Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule;

[0513] The fourth offset value and / or the fifth offset value are determined based on protocol agreement.

[0514] Optionally, the method further includes:

[0515] At least one of the fourth offset value and the fifth offset value is configured and / or indicated to the terminal.

[0516] Optionally, a maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

[0517] Optionally, the method further includes:

[0518] The first frequency hopping mode is configured and / or indicated to the terminal.

[0519] For a detailed description of steps 4201-4202, please refer to the above embodiment description.

[0520] The communication method involved in the embodiments of the present disclosure may include at least one of steps 4201 and 4202. For example, step 4201 may be implemented as an independent embodiment, step 4202 may be implemented as an independent embodiment, step 4203 may be implemented as an independent embodiment, and step 4201+step 4202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0521] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0522] Figure 5 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiment of the present disclosure relates to a communication method for a communication system including a terminal and a network device. The method includes at least one of the following:

[0523] Step 5101: The terminal determines a first frequency hopping mode;

[0524] Step 5102: The terminal sends the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0525] Step 5103: The network device determines a first frequency hopping mode.

[0526] Step 5104: The network device receives the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0527] Optional implementations of steps 5101 to 5104 can be found in the above embodiments.

[0528] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, the first device side, the network device side, etc., which will not be repeated here.

[0529] The communication method involved in the embodiment of the present disclosure may include at least one of steps 5101 to 5104. For example, step 5101 may be implemented as an independent embodiment, and step 5102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0530] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0531] The following is an exemplary introduction to the above method.

[0532] Optional Example 1: OCC multiplexing and frequency hopping of the NPRACH channel are not used at the same time. For example, when the terminal performs NPRACH OCC multiplexing, the frequency hopping function is disabled by default.

[0533] Optional Example 2: For frequency hopping of NPRACH OCC multiplexing, the following method is used to determine the time-frequency domain position of NPRACH transmission:

[0534] Optional Example 2-1: The time domain resources of each OCC sequence of length L use the same frequency domain position

[0535] The basic time domain granularity B of frequency hopping is determined as follows:

[0536] B=M*L. For different multiplexing modes, the basic unit of M is different. For symbol-based OCC multiplexing, the basic unit of M is symbol; for symbol-group based OCC multiplexing, the basic unit of M is symbol group; for repetition-based OCC Multiplexing, the basic unit of M is repetition. The same OCC Sequence value Wm(j) is used within M symbols / symbol groups / repetitions, and different OCC Sequence values ​​are used between two M symbols / symbol groups / repetitions. The determination method of M and L is the same as before. It can be imagined that M can take the value of 1

[0537] Different frequency domain positions can be used between the two basic time domain granularities B. The frequency domain offset can be determined by pseudo-random sequence generation (same as the legacy method) or according to protocol preset rules. For example, a fixed frequency offset {1, 6, -1} or {1, -6, -1} or {-1, 6, 1} or {-1, -6, 1} can be used, that is, there are up to 4 different frequency domain positions. The frequency offset can also be determined by gNB configuration / instruction.

[0538] Alternatively, different frequency domain positions are used between the Y basic time domain granularities B, and the same frequency domain position is used within the Y basic time domain granularities B. Y may be determined by a protocol preset value or preset rule, or determined by gNB configuration.

[0539] A possible frequency hopping method is shown in FIG2B above:

[0540] Assume that the OCC length is 4, M = 1, and OCC multiplexing is performed based on 4 symbol groups in one repetition. Y = 1, and the number of repetitions = 4.

[0541] Optional Example 2-2: For symbol group or repetition based OCC multiplexing, the following frequency hopping methods can also be considered:

[0542] For symbol group based OCC multiplexing mode 2-2, the frequency hopping can be designed as shown below:

[0543] Different symbol groups within each M symbol group can use different frequency domain positions for FH (the frequency offset can be determined using traditional methods or according to protocol preset rules / preset values). The same frequency hopping pattern is used between L*M symbol groups. A certain frequency offset (>= 0) can exist between every two L*M symbol groups. This frequency offset can be determined using a pseudo-random method (similar to the legacy method), gNB configuration, or protocol preset rules / preset values.

[0544] A possible frequency hopping mode is shown in FIG2C : Assume that OCC length=2, repetition times=4, and M=4.

[0545] For repetition-based OCC multiplexing, frequency hopping can be designed as follows:

[0546] Different symbol groups in each M repetition may use different frequency domain positions for FH (the frequency offset may be determined by conventional means or according to protocol preset rules / preset values); the same frequency hopping pattern may be used between L M repetitions; a certain frequency offset (>= 0) may be present between every two L*M repetitions. This frequency offset may be determined by pseudo-random means (same as the legacy means), by gNB configuration, or by protocol preset rules / preset values. The method for determining M is the same as above.

[0547] A possible frequency hopping method is shown in FIG. 2C : Assume that OCC length=2, M=1, and repetition times=4.

[0548] For the above frequency hopping method, the subcarriers of multiple NPRACH repetitions sent by the same terminal need to be limited to within the range of 12 subcarriers.

[0549] The present disclosure provides a frequency hopping mechanism to support NPRACH OCC multiplexing, ensuring link transmission performance while achieving system expansion, thereby supporting more users for uplink transmission under the premise of limited time-frequency resources and limited terminal transmission power.

[0550] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0551] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0552] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0553] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6A , it includes:

[0554] a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0555] A transceiver module is configured to send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0556] Optionally, the above-mentioned transceiver module is used to execute the steps related to "transmitting and receiving" executed by the terminal in any of the above methods, and the above-mentioned processing module is used to execute the steps related to "processing" executed by the terminal in any of the above methods.

[0557] FIG6B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in FIG6B , it includes:

[0558] a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted by a terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence;

[0559] A transceiver module is configured to receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

[0560] Optionally, the above-mentioned transceiver module is used to execute the steps related to "transmitting and receiving" performed by the network device in any of the above methods, and the above-mentioned processing module is used to execute the steps related to "processing" performed by the network device in any of the above methods.

[0561] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device or the first device described above), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0562] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0563] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0564] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0565] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0566] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0567] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0568] 7B is a schematic diagram of the structure of a chip 7200 according to an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0569] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.

[0570] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0571] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0572] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0573] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0574] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0575] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0576] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0577] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0578] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: Executed by a terminal, the method includes: Determining a first frequency hopping mode, where the first frequency hopping mode is: a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence; The NPRACH of the terminal is sent based on the first frequency hopping mode and the OCC sequence.

2. The method according to claim 1, wherein The multi-user multiplexing transmission of the NPRACH includes at least one of the following: Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH; Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH; Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

3. The method according to claim 2, wherein When multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

4. The method according to claim 2 or 3, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in M2 symbol groups of the NPRACH, where M2 is a positive integer.

5. The method according to any one of claims 2 to 4, characterized in that: When multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

6. The method according to any one of claims 1 to 5, characterized in that: The first frequency hopping mode is: no frequency hopping.

7. The method according to any one of claims 1 to 5, characterized in that: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, the first frequency hopping mode is: dividing N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows; Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

8. The method according to claim 7, wherein There is a first offset value between the frequency domain resources of different Y1 first time domain windows; the first offset value is determined by at least one of the following methods: determining the first offset value based on a pseudo-random sequence; Determine the first offset value based on a preset protocol rule; Determining the first offset value based on protocol agreement; determining the first offset value based on a network device configuration; The first offset value is determined based on a network device indication.

9. The method according to any one of claims 1 to 5, characterized in that: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows; Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

10. The method according to claim 9, wherein There is a second offset value between the frequency domain resources of different Y2 second time domain windows; the second offset value is determined by at least one of the following methods: determining the second offset value based on a pseudo-random sequence; Determine the second offset value based on a preset protocol rule; Determine the second offset value based on protocol agreement; determining the second offset value based on a network device configuration; The second offset value is determined based on the network device indication.

11. The method according to any one of claims 1 to 5, characterized in that: When multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with "B3 NPRACH transmissions" as the granularity, different time domain units within Y3 third time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y3 third time domain windows; Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

12. The method according to claim 11, wherein There is a third offset value between the frequency domain resources of different Y3 third time domain windows; the third offset value is determined by at least one of the following methods: determining the third offset value based on a pseudo-random sequence; Determine the third offset value based on a preset protocol rule; Determining the third offset value based on protocol agreement; Determining the third offset value based on the network device configuration; The third offset value is determined based on the network device indication.

13. The method according to any one of claims 1 to 5, characterized in that: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following: Different symbol groups within each M2 symbol group correspond to different frequency domain resources; The same frequency hopping pattern is used between the L M2 symbol groups; Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

14. The method according to any one of claims 1 to 5, characterized in that: When multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following: Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources; The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH; Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

15. The method according to claim 13 or 14, characterized in that There is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups; There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions; The fourth offset value and / or the fifth offset value are determined in at least one of the following ways: determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence; Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule; Determining the fourth offset value and / or the fifth offset value based on protocol agreement; Determining the fourth offset value and / or the fifth offset value based on a network device configuration; The fourth offset value and / or the fifth offset value are determined based on the network device indication.

16. The method according to any one of claims 1 to 15, wherein: A maximum frequency domain interval of the terminal in N repeated transmissions of the NPRACH is less than or equal to a first threshold.

17. A communication method, characterized in that: Executed by a network device, the method includes: Determining a first frequency hopping mode, where the first frequency hopping mode is: a frequency hopping mode adopted by the terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence; Receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

18. The method according to claim 17, wherein The multi-user multiplexing transmission of the NPRACH includes at least one of the following: Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH; Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group symbol group of the NPRACH; Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.

19. The method according to claim 18, wherein When multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.

20. The method according to claim 18 or 19, wherein When multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol in M2 symbol groups of the NPRACH, where M2 is a positive integer.

21. The method according to any one of claims 18 to 20, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, a sequence value in the OCC sequence is mapped to a symbol corresponding to M3 transmissions of the NPRACH, where M3 is a positive integer, M3 is less than or equal to N, and N is the total number of repeated transmissions of the NPRACH.

22. The method according to any one of claims 17 to 21, wherein: The first frequency hopping mode is: no frequency hopping.

23. The method according to any one of claims 17 to 21, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbols of the NPRACH, the first frequency hopping mode is: dividing N transmissions of the NPRACH into at least one first time domain window with a granularity of "B1 symbols", different time domain units within Y1 first time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y1 first time domain windows; Wherein, B1 is equal to the product of M1 and L, L is the sequence length of the OCC sequence; and Y1 is an integer greater than or equal to 1.

24. The method according to claim 23, wherein There is a first offset value between the frequency domain resources of different Y1 first time domain windows; the first offset value is determined by at least one of the following methods: determining the first offset value based on a pseudo-random sequence; Determine the first offset value based on a preset protocol rule; Determining the first offset value based on protocol agreement; The method further comprises: The first offset value is configured and / or indicated to the terminal.

25. The method according to any one of claims 17 to 21, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode is: dividing N transmissions of the NPRACH into at least one second time domain window with a granularity of "B2 symbol groups", different time domain units within the Y2 second time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y2 second time domain windows; Wherein, B2 is equal to the product of M2 and L, L is the sequence length of the OCC sequence; and Y2 is an integer greater than or equal to 1.

26. The method of claim 25, wherein: There is a second offset value between the frequency domain resources of different Y2 second time domain windows; the second offset value is determined by at least one of the following methods: determining the second offset value based on a pseudo-random sequence; Determine the second offset value based on a preset protocol rule; Determine the second offset value based on protocol agreement; The method further comprises: The second offset value is configured and / or indicated to the terminal.

27. The method according to any one of claims 17 to 21, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode is: dividing the N transmissions of the NPRACH into at least one third time domain window with "B3 NPRACH transmissions" as the granularity, different time domain units within Y3 third time domain windows correspond to the same frequency domain resource, and different frequency domain resources correspond between the Y3 third time domain windows; Wherein, B3 is equal to the product of M3 and L, L is the sequence length of the OCC sequence; and Y3 is an integer greater than or equal to 1.

28. The method of claim 27, wherein: There is a third offset value between the frequency domain resources of different Y3 third time domain windows; the third offset value is determined by at least one of the following methods: determining the third offset value based on a pseudo-random sequence; Determine the third offset value based on a preset protocol rule; Determining the third offset value based on protocol agreement; The method further comprises: The third offset value is configured and / or indicated to the terminal.

29. The method according to any one of claims 17 to 21, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the symbol group of the NPRACH, the first frequency hopping mode includes at least one of the following: Different symbol groups within each M2 symbol group correspond to different frequency domain resources; The same frequency hopping pattern is used between the L M2 symbol groups; Different B2 symbol groups correspond to different frequency domain resources, and there is a second offset value between the frequency domain resources of different B2 symbol groups, where B2 is equal to the product of M2 and L.

30. The method according to any one of claims 17 to 21, wherein: When multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, the first frequency hopping mode includes at least one of the following: Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources; The same frequency hopping pattern is used between the L M3 transmissions of the NPRACH; Different B3 transmissions of the NPRACH correspond to different frequency domain resources, and there is a third offset value between the frequency domain resources of different B3 transmissions, where B3 is equal to the product of M3 and L.

31. The method according to claim 29 or 30, wherein There is a fourth offset value between frequency domain resources of different symbol groups within the M2 symbol groups; There is a fifth offset value between frequency domain resources of different symbol groups within M3 transmissions; The fourth offset value and / or the fifth offset value are determined in at least one of the following ways: determining the fourth offset value and / or the fifth offset value based on a pseudo-random sequence; Determining the fourth offset value and / or the fifth offset value based on a preset protocol rule; Determining the fourth offset value and / or the fifth offset value based on protocol agreement; The method further comprises: At least one of the fourth offset value and the fifth offset value is configured and / or indicated to the terminal.

32. The method according to any one of claims 17 to 31, wherein: A maximum frequency domain interval of the terminal in the N repeated transmissions of the NPRACH is less than or equal to a first threshold.

33. The method according to any one of claims 17 to 32, wherein: The method further comprises: The first frequency hopping mode is configured for the terminal.

34. A communication method, used in a communication system, wherein the communication system includes a terminal and a network device, the method comprising: The terminal determines a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode used when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence; The terminal sends the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence; The network device determines a first frequency hopping mode; The network device receives the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

35. A terminal, characterized in that: include: a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence; A transceiver module is configured to send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

36. A network device, characterized in that: include: a processing module, configured to determine a first frequency hopping mode, where the first frequency hopping mode is a frequency hopping mode adopted by a terminal when performing multi-user multiplexing transmission on a narrowband physical random access channel NPRACH based on an orthogonal cover code OCC sequence; A transceiver module is configured to receive the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.

37. A communication device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein instructions are stored in the memory, and when the instructions are executed by the processor, the communication device executes the method according to any one of claims 1 to 16 or claims 17 to 33.

38. A communication system, characterized in that: The method comprises a terminal and a network device, wherein the terminal is configured to implement the method according to any one of claims 1 to 16, and the network device is configured to implement the method according to any one of claims 17 to 33.

39. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 16 or claims 17 to 33.

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