WO2025175447A1 - Procédés de communication, dispositif de communication, système de communication et support de stockage - Google Patents
Procédés de communication, dispositif de communication, système de communication et support de stockageInfo
- Publication number
- WO2025175447A1 WO2025175447A1 PCT/CN2024/077642 CN2024077642W WO2025175447A1 WO 2025175447 A1 WO2025175447 A1 WO 2025175447A1 CN 2024077642 W CN2024077642 W CN 2024077642W WO 2025175447 A1 WO2025175447 A1 WO 2025175447A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nprach
- offset value
- frequency hopping
- different
- time domain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- 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.
- Non-terrestrial Network IoTNTN
- OFC orthogonal cover code
- NPRACH narrowband physical random access channel
- terminals When transmitting NPRACH based on OCC technology, terminals typically perform frequency hopping on the NPRACH to reduce transmission interference and ensure link transmission performance.
- the specific method for frequency hopping the NPRACH transmitted using OCC technology is a technical problem that needs to be solved urgently.
- a communication method which is executed by a terminal and includes:
- the NPRACH of the terminal is sent based on the first frequency hopping mode and the OCC sequence.
- a communication method is provided, which is performed by a network device.
- the method includes:
- 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;
- a communication method for use in a communication system, the communication system including a terminal and a network device, the method including:
- 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.
- a terminal including:
- 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.
- a network device including:
- 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.
- a communication device including:
- processors one or more processors
- a communication system 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.
- a storage medium 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.
- FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure.
- FIG2A is a flow chart of a communication method provided in yet another embodiment of the present disclosure.
- FIG2B is a schematic diagram illustrating a first frequency hopping mode according to an embodiment of the present disclosure
- FIG3A is a flow chart of a communication method provided in yet another embodiment of the present disclosure.
- FIG3B is a flow chart of a communication method provided in yet another embodiment of the present disclosure.
- FIG4A is a flow chart of a communication method provided in yet another embodiment of the present disclosure.
- FIG4B is a flow chart of a communication method provided in yet another embodiment of the present disclosure.
- FIG5 is a flow chart of a communication method provided in yet another embodiment of the present disclosure.
- FIG6A is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
- FIG6B is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure.
- FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
- FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
- the embodiments of the present disclosure provide a communication method, a communication device, a communication system, and a storage medium.
- an embodiment of the present disclosure provides a communication method, which is executed by a terminal.
- the method includes:
- 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 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.
- a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.
- 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.
- 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.
- multiple implementation methods 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.
- the first frequency hopping mode is: no frequency hopping.
- 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;
- 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.
- the first offset value is determined using at least one of the following methods:
- the first offset value is determined based on a network device indication.
- 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;
- the second offset value is determined using at least one of the following methods:
- the second offset value is determined based on the network device indication.
- 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;
- 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.
- the third offset value is determined based on the network device indication.
- the first frequency hopping mode 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.
- 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.
- a specific method for frequency hopping NPRACH transmitted based on the OCC technology is provided.
- multiple users can frequency hop and transmit NPRACH on the same time-frequency resources, thereby achieving uplink capacity enhancement and improving uplink transmission efficiency.
- frequency hopping transmission can also reduce NPRACH transmission interference and ensure link transmission performance.
- Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;
- Multi-user multiplexing transmission of the NPRACH is achieved based on the number of repeated transmissions of the NPRACH.
- a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.
- 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.
- the first frequency hopping mode is: no frequency hopping.
- 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;
- 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.
- the method further comprises:
- 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.
- the third offset value is determined using at least one of the following methods:
- the method further comprises:
- the third offset value is configured and/or indicated to the terminal.
- 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 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.
- the fourth offset value and/or the fifth offset value are determined in at least one of the following ways:
- At least one of the fourth offset value and the fifth offset value is configured and/or indicated to the terminal.
- the network device receives the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.
- Multi-user multiplexing transmission of the NPRACH implemented based on the symbol group 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.
- 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.
- the first frequency hopping mode is: no frequency hopping.
- 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;
- 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.
- the first offset value is determined using at least one of the following methods:
- the first offset value is determined based on a network device indication.
- 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.
- the second offset value is determined using at least one of the following methods:
- 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;
- 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.
- the third offset value is determined using at least one of the following methods:
- the third offset value is determined based on the network device indication.
- the first frequency hopping mode 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 first frequency hopping mode when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, 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.
- the fourth offset value and/or the fifth offset value are determined in at least one of the following ways:
- 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;
- Multi-user multiplexing transmission of the NPRACH implemented based on the symbol symbol of the NPRACH;
- Multi-user multiplexing transmission of the NPRACH is achieved 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 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 to each other between the Y1 first time domain windows;
- the first offset value is configured and/or indicated to the terminal.
- 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;
- 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.
- the second offset value is determined using at least one of the following methods:
- the method further comprises:
- the second offset value is configured and/or indicated to the terminal.
- 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;
- 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.
- the third offset value is determined in at least one of the following ways:
- the method further comprises:
- the third offset value is configured and/or indicated to the terminal.
- the first frequency hopping mode 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.
- the first frequency hopping mode when multi-user multiplexing transmission of the NPRACH is implemented based on the number of repeated transmissions of the NPRACH, includes at least one of the following:
- 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.
- the fourth offset value and/or the fifth offset value are determined in at least one of the following ways:
- 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.
- the first frequency hopping mode is configured and/or indicated to the terminal.
- 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.
- an embodiment of the present disclosure proposes a storage medium, which stores instructions.
- 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.
- an embodiment of the present disclosure proposes a program product.
- 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.
- the present disclosure provides invention titles.
- 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.
- each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
- 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.
- 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.
- plurality refers to two or more.
- the terms “at least one of,” “at least one of,” “at least one of,” “one or more,” “a plurality of,” “multiple,” etc. may be used interchangeably.
- 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.
- 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).
- 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
- executing both A and B in some embodiments, A and B.
- 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”.
- 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.
- the objects modified by different prefixes can be the same or different.
- the description object is "device”
- 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.
- “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
- 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.
- the terms “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”, “above” and the like can be used interchangeably, and “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or
- the terms “equal to”, “not more than”, “lower than”, “lower than or equal to”, “not higher than”, “below” and the like are interchangeable.
- 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.
- terminal 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.
- the access network device, the core network device, or the network device can be replaced by a terminal.
- 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.).
- D2D device-to-device
- V2X vehicle-to-everything
- language such as "uplink” and "downlink” can also be replaced by language corresponding to communication between terminals (for example, "side”).
- uplink channels, downlink channels, etc. can be replaced by side channels
- uplinks, downlinks, etc. can be replaced by side links.
- the terminal may be replaced by an access network device, a core network device, or a network device.
- 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.
- obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
- data, information, etc. may be obtained with the user's consent.
- 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.
- 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.
- the correspondences shown in certain rows may not be configured.
- 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.
- 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.
- Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
- the communication system 100 may include a terminal and a network device.
- the network device may include at least one of an access network device and a core network device.
- 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 capabilities, a smart car, a tablet computer (Pad), a computer with wireless transceiver capabilities, a virtual reality (VR) device, or a similar device.
- NB-IOT narrowband Internet of Things
- VR virtual reality
- VR virtual reality
- AR augmented reality
- 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 Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (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.
- eNB evolved Node B
- ng-eNB next generation evolved Node B
- gNB next generation Node B
- the access network device may be composed of a centralized unit (CU) and a distributed unit (DU), where the CU may also be called a control unit.
- the CU-DU structure may be used to split the protocol layers of the access network device, with some functions of the protocol layers centrally controlled by the CU, and the remaining functions of some or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.
- 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 includes, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC).
- EPC Evolved Packet Core
- 5GCN 5G Core Network
- NRC Next Generation Core
- the core network device may also be a location management function network element.
- 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).
- LMF Location Management Function
- E-SMLC Enhanced Serving Mobile Location Centre
- SUPL Secure User Plane Location
- SUPLLP Secure User Plane Location Platform
- 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.
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- SUPER 3G IMT-Advanced
- 4th generation mobile communication system 4th generation mobile communication system
- 5G 5th generation mobile communication system
- 5G new radio NR
- future radio access FX
- new radio access technology RAT
- new radio NR
- new radio access NX
- future generation radio access FX
- GSM Global System for Mobile Communications
- GSM registered trademark
- CDMA2000 Code Division Multiple Access
- UMB Ultra Mobile Broadband
- 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) network
- D2D Device-to-Device
- M2M Machine-to-Machine
- IoT Internet of Things
- Vehicle-to-Everything V2X
- Step 2101 The network device configures and/or indicates a first frequency hopping mode.
- 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.
- 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.
- the above-mentioned "multi-user multiplexing transmission” can be understood as: multiple terminals multiplexing and transmitting NPRACH on the same time-frequency resources.
- 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.
- 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.
- the first type multi-user multiplexing transmission of NPRACH implemented based on NPRACH symbols (i.e. symbol-based OCC multiplexing).
- 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.
- 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.
- 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.
- the second type multi-user multiplexing transmission of NPRACH implemented based on NPRACH symbol group (i.e. symbol-group based OCC multiplexing).
- 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.
- the third type multi-user multiplexing transmission of NPRACH based on the number of repeated transmissions of NPRACH (i.e. repetition-based OCC Multiplexing).
- 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.
- 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", wherein the length of each first time domain window is 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 Y1 first time domain windows; wherein the above-mentioned time domain unit may be a time slot, a symbol, a radio frame, or a radio subframe, the above-mentioned B1 is equal to the product of M1 and L, the above-mentioned L is the sequence length (OCC length) of the OCC sequence; and the above-mentioned Y1 is an integer greater than or equal to 1.
- 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:
- a first offset value is determined based on a protocol preset value.
- 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.
- the difference between the above “determining the first offset value based on the preset rules of the protocol” and “determining the first offset value based on the agreement of the protocol” can be The phrase "determining the first offset value based on a protocol preset rule” means that the protocol presets a rule for generating the first offset value. In this case, the protocol preset rule can first be determined, and then the first offset value can be generated based on the rule. Furthermore, the phrase "determining the first offset value based on a protocol agreement" means that 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.
- the network device may further configure and/or indicate the first offset value to the terminal.
- 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.
- 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).
- 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.
- 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.
- 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:
- the second offset value is determined based on protocol conventions.
- the network device may further configure and/or indicate a second offset value to the terminal.
- the frequency domain resources of each second time domain window are different, and the first offset values between the four second 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.
- 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 Or indicate to the terminal, and, "1" in ⁇ 1,6,-1 ⁇ may indicate that the second second time domain window is offset by 1 frequency domain unit in the first frequency domain direction relative to the first second time domain window, "6" in ⁇ 1,6,-1 ⁇ may indicate that the third second time domain window is offset by 6 frequency domain units in the first frequency domain direction relative to the second second time domain window, and "-1" in ⁇ 1,6,-1 ⁇ may indicate that the fourth second time domain window is offset by 1 frequency domain unit in the second frequency domain direction relative to the third second time domain window.
- the first frequency domain direction, the second frequency domain direction, and the frequency domain unit please refer to the above description.
- the fifth offset value is determined based on protocol conventions.
- Step 2102 The terminal determines a first frequency hopping mode.
- 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.
- the network device 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.
- a specific method for frequency hopping NPRACH transmitted based on the OCC technology is provided.
- multiple users can frequency hop and transmit NPRACH on the same time-frequency resources, thereby achieving uplink capacity enhancement and improving uplink transmission efficiency.
- frequency hopping transmission can also reduce NPRACH transmission interference and ensure link transmission performance.
- the communication method involved in the embodiments of the present disclosure may include at least one of steps 2101 to 2103.
- 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
- step 2101+S2102 may be implemented as an independent embodiment, but the present invention is not limited thereto.
- 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.
- 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:
- Step 3101 Receive a first frequency hopping mode configured and/or indicated by a network device.
- Step 3103 Send the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.
- steps 3101-3103 For a detailed description of steps 3101-3103, please refer to the above embodiment description.
- 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.
- Step 3201 Determine a first frequency hopping mode.
- 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.
- 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.
- a sequence value in the OCC sequence is mapped to M1 symbols of the NPRACH, where M1 is a positive integer.
- 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.
- 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.
- 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;
- 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.
- 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:
- the first offset value is determined based on a network device indication.
- 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;
- 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.
- 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:
- the method further includes:
- Different symbol groups in each M3 transmission of the NPRACH correspond to different frequency domain resources
- 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.
- the fourth offset value and/or the fifth offset value are determined based on protocol agreement.
- the method further includes:
- At least one of the fourth offset value and the fifth offset value is configured and/or indicated to the terminal.
- the method further includes:
- the first frequency hopping mode is configured and/or indicated to the terminal.
- Step 5102 The terminal sends the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.
- Step 5104 The network device receives the NPRACH of the terminal based on the first frequency hopping mode and the OCC sequence.
- steps 5101 to 5104 can be found in the above embodiments.
- 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.
- 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:
- the basic time domain granularity B of frequency hopping is determined as follows:
- 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, i.e., there are up to 4 different frequency domain positions.
- the frequency offset can also be determined by gNB configuration/indication.
- Y may be determined by a protocol preset value or preset rule, or determined by gNB configuration.
- FIG2B A possible frequency hopping method is shown in FIG2B above:
- OCC length 4
- M 1
- OCC multiplexing is performed based on 4 symbol groups in one repetition
- Optional Example 2-2 For symbol group or repetition based OCC multiplexing, the following frequency hopping scheme can also be considered:
- the frequency hopping can be designed as follows:
- Different symbol groups within each M symbol group can use different frequency domain locations 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 across the L M symbol groups.
- frequency hopping For repetition-based OCC multiplexing, frequency hopping can be designed as follows:
- the frequency offset can be determined by pseudo-random means (same as the legacy method), gNB configuration, or protocol preset rules/preset values.
- the method for determining M is the same as before.
- the subcarriers of multiple NPRACH repetitions sent by the same terminal need to be limited to within the range of 12 subcarriers.
- the present disclosure provides a frequency hopping mechanism to support NPRACH OCC multiplexing, ensuring link transmission performance on the basis of achieving system expansion, thereby supporting more users for uplink transmission under the premise of limited time-frequency resources and limited terminal transmission power.
- the division of the units or modules in the above device is only a division of logical functions, and in actual implementation, all or part of the units or modules can be integrated.
- the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the above-mentioned units or modules of the 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.
- CPU central processing unit
- microprocessor a microprocessor
- 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).
- ASIC application-specific integrated circuit
- PLD programmable logic device
- FPGA field programmable gate array
- 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.
- the processor is a circuit with signal processing capabilities.
- the processor may be a circuit with instruction reading and execution capabilities, 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).
- the processor may implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable.
- the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
- ASIC application-specific integrated circuit
- PLD programmable logic device
- the process of the processor loading a configuration document to implement 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.
- it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as the Neural Network Processing Unit (NPU), the Tensor Processing Unit (TPU), the Deep Learning Processing Unit (DPU), etc.
- 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:
- 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.
- 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
- the above-mentioned processing module is used to execute the steps related to "processing" executed by the terminal in any of the above methods.
- 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:
- 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.
- 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
- 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.
- FIG. 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.
- 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
- 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.
- the communication device 7100 further includes one or more memories 7102 for storing instructions.
- the memories 7102 may be located outside the communication device 7100.
- the communication device 7100 further 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.
- a transceiver may include a receiver and a transmitter, which may be separate or integrated.
- 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.
- 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.
- the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.
- 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.
- 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.
- FIG. 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.
- 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.
- 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.
- interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.
- the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.
- 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.
- the present disclosure also proposes a storage medium having instructions stored thereon.
- the storage medium is an electronic storage medium.
- 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.
- the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.
- 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.
- the program product is a computer program product.
- 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.
- all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof.
- 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.
- the computer program When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part.
- 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.
- the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
- 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.
- the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
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Abstract
Sont prévus dans la présente divulgation des procédés de communication, un appareil, un dispositif, ainsi qu'un support de stockage. Un procédé comprend les étapes suivantes : déterminer un premier mode de saut de fréquence, le premier mode de saut de fréquence étant un mode de saut de fréquence utilisé lors de la réalisation d'une transmission à multiplexage multi-utilisateur sur un canal physique à accès aléatoire à bande étroite (NPRACH) sur la base d'une séquence de code de couverture orthogonal (OCC) ; et, sur la base du premier mode de saut de fréquence et de la séquence OCC, transmettre le NPRACH d'un terminal. Les procédés de la présente divulgation permettent à de multiples utilisateurs de transmettre le NPRACH sur la même ressource temps-fréquence au moyen d'un saut de fréquence, ce qui permet d'obtenir une amélioration de capacité de liaison montante, et d'améliorer l'efficacité de transmission de liaison montante. De plus, la transmission au moyen d'un saut de fréquence peut également réduire l'interférence de transmission du NPRACH.
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| PCT/CN2024/077642 WO2025175447A1 (fr) | 2024-02-19 | 2024-02-19 | Procédés de communication, dispositif de communication, système de communication et support de stockage |
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| PCT/CN2024/077642 WO2025175447A1 (fr) | 2024-02-19 | 2024-02-19 | Procédés de communication, dispositif de communication, système de communication et support de stockage |
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| WO2019061319A1 (fr) * | 2017-09-29 | 2019-04-04 | Qualcomm Incorporated | Amélioration de capacité de canal d'accès aléatoire physique à bande étroite |
| US20190274168A1 (en) * | 2015-12-18 | 2019-09-05 | Lg Electronics Inc. | Method and wireless device for transmitting random-access preamble by means of single-tone method |
| CN115174024A (zh) * | 2017-08-10 | 2022-10-11 | 苹果公司 | 在支持feNB-IOT操作的TDD中的上行链路传输 |
| US20230209555A1 (en) * | 2020-07-30 | 2023-06-29 | Intel Corporation | Transmission scheme for physical uplink control channel |
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2024
- 2024-02-19 WO PCT/CN2024/077642 patent/WO2025175447A1/fr active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190274168A1 (en) * | 2015-12-18 | 2019-09-05 | Lg Electronics Inc. | Method and wireless device for transmitting random-access preamble by means of single-tone method |
| CN115174024A (zh) * | 2017-08-10 | 2022-10-11 | 苹果公司 | 在支持feNB-IOT操作的TDD中的上行链路传输 |
| WO2019061319A1 (fr) * | 2017-09-29 | 2019-04-04 | Qualcomm Incorporated | Amélioration de capacité de canal d'accès aléatoire physique à bande étroite |
| US20230209555A1 (en) * | 2020-07-30 | 2023-06-29 | Intel Corporation | Transmission scheme for physical uplink control channel |
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