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WO2025065191A1 - Procédé et appareil de détermination de ressources, dispositif de communication, système de communication et support de stockage - Google Patents

Procédé et appareil de détermination de ressources, dispositif de communication, système de communication et support de stockage Download PDF

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Publication number
WO2025065191A1
WO2025065191A1 PCT/CN2023/121258 CN2023121258W WO2025065191A1 WO 2025065191 A1 WO2025065191 A1 WO 2025065191A1 CN 2023121258 W CN2023121258 W CN 2023121258W WO 2025065191 A1 WO2025065191 A1 WO 2025065191A1
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WO
WIPO (PCT)
Prior art keywords
prb
prbs
psfch
subsets
information
Prior art date
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PCT/CN2023/121258
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English (en)
Chinese (zh)
Inventor
赵文素
赵群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2023/121258 priority Critical patent/WO2025065191A1/fr
Priority to CN202380011289.4A priority patent/CN117546431A/zh
Publication of WO2025065191A1 publication Critical patent/WO2025065191A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a resource determination method and device, communication equipment, communication system, and storage medium.
  • the Physical Sidelink Feedback Channel usually occupies only one Physical Resource Block (PRB) in the frequency domain.
  • PRB Physical Resource Block
  • the transmission power of PSFCH is 24.58dBm (dBm is a common power unit, which represents the logarithmic value of power relative to 1 milliwatt (mW)), which is much lower than 40dBm.
  • dBm is a common power unit, which represents the logarithmic value of power relative to 1 milliwatt (mW)), which is much lower than 40dBm.
  • the embodiments of the present disclosure provide a resource determination method, apparatus, device, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology to solve the technical problem of "low transmission reliability of physical sidelink feedback channel PSFCH".
  • the present disclosure proposes a resource determination method and device, a communication device, a communication system, and a storage medium.
  • a resource determination method is proposed, which is executed by a terminal, including: receiving first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH; determining N PRBs from the PRB set as PSFCH resources mapped to one physical sidelink shared channel PSSCH, and using the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of the PSSCH, wherein N is an integer greater than 1.
  • a resource determination method is proposed, which is executed by a network device, including: sending first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH, and N PRBs in the PRB set are used as PSFCH resources mapped as one physical sidelink shared channel PSSCH, and the mapped PSFCH resources are used for hybrid automatic repeat request HARQ feedback for the transmission of the PSSCH, and N is an integer greater than 1.
  • a resource determination method including: a network device is used to send first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH; a terminal is used to receive the first information, and determine N PRBs from the PRB set as PSFCH resources mapped to one physical sidelink shared channel PSSCH, and use the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of the PSSCH, wherein N is an integer greater than 1.
  • a resource determination device comprising: a transceiver module for receiving first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH; a processing module for determining N PRBs from the PRB set as PSFCH resources mapped to one physical sidelink shared channel PSSCH, and using the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of the PSSCH, wherein N is an integer greater than 1.
  • a resource determination device including: a transceiver module, used to send first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH, and the N PRBs in the PRB set are used as PSFCH resources mapped to one physical sidelink shared channel PSSCH, and the mapped PSFCH resources are used for hybrid automatic repeat request HARQ feedback for the transmission of the PSSCH, and N is an integer greater than 1.
  • a communication device comprising: one or more processors; wherein the processor is used to call instructions so that the communication device executes the resource determination method of any one of the first aspect, the second aspect, and the third aspect.
  • a communication system includes a terminal and a network device, wherein the terminal is configured to implement the resource determination method of the first aspect, and the network device is configured to implement the resource determination method of the second aspect.
  • a storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes a resource determination method as described in any one of the first aspect, the second aspect, and the third aspect.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • FIG2A is an interactive schematic diagram of a resource determination method according to an embodiment of the present disclosure
  • FIG2B is an interactive schematic diagram of a resource determination method according to an embodiment of the present disclosure.
  • FIG2C is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG3A is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG3B is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG3C is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG3D is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG3E is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG4 is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • FIG5 is an interactive schematic diagram of a resource determination method according to yet another embodiment of the present disclosure.
  • FIG6 is a schematic diagram of a method for determining a PRB subset in an embodiment of the present disclosure
  • FIG7A is a schematic diagram of the structure of a resource determination device proposed in an embodiment of the present disclosure.
  • FIG7B is a schematic diagram of the structure of a resource determination device proposed in another embodiment of the present disclosure.
  • FIG8A is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG8B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.
  • the embodiments of the present disclosure propose resource determination methods and devices, communication devices, communication systems, and storage media.
  • the resource determination method, information processing method, communication method, and other terms can be interchangeable
  • the resource determination device, information processing device, communication device, and other terms can be interchangeable
  • the information processing system, communication system, and other terms can be 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 of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • 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. can 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 the situation where any multiple of A, B, C... exist in any combination, 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.
  • the description methods such as “in one case A, in another case B", “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: A is executed independently of B, that is, in some embodiments A; B is executed independently of A, that is, in some embodiments B; A and B are selectively executed, that is, selected from A and B in some embodiments; A and B are both executed, that is, A and B in some embodiments.
  • branches such as A, B, C, etc., it is similar to the above.
  • 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 restrictions on the position, order, priority, quantity or content of the description objects.
  • the description object please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be imposed due to the use of prefixes.
  • 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”.
  • 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 ordinal numbers and can be one or more. Taking the "first device” as an example, the number of "devices" can be one or more.
  • different prefixes The objects modified by the suffix 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.
  • “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 “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 lower 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”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • 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.
  • network may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • 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 and the like can be used interchangeably.
  • acquisition of 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 embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 may include a terminal 101 and a network device 102.
  • the network device 102 may include at least one of an access network device and a core network device.
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, 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 a wireless terminal device in a smart home.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, 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
  • 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 WiFi system, but is not limited thereto.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • gNB next generation Node B
  • NB node B
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.
  • the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of one or more network elements.
  • the network element may be virtual or physical.
  • the core network includes 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
  • NGC Next Generation Core
  • 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.
  • a person of ordinary skill in the art 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.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, which may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G the fourth generation mobile communication system
  • 5G 5G new radio
  • FAA Future Radio Access
  • RAT New Radio
  • NR New Radio
  • NX New radio access
  • the present invention relates to wireless communication systems such as LTE, Wi-Fi (X), 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) network, Device to Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems expanded based on them.
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine
  • IoT Internet of Things
  • V2X Vehicle to Everything
  • systems using other communication methods and next-generation systems expanded based on them.
  • next-generation systems expanded based on them.
  • a combination of multiple systems for example, a combination of
  • the mapping rule of the Physical Sidelink Shared Channel (PSSCH) and PSFCH in the sidelink (SL) is to determine one or more PRBs corresponding to one PSSCH in a pre-configured PRB set by the time slot number and sub-channel number occupied by the PSSCH, and finally determine the PSFCH resources corresponding to one PSSCH in one or more PRBs.
  • the determined PSFCH resources only occupies one PRB in the frequency domain.
  • a resource determination method is provided, by receiving first information, wherein the first information indicates a physical resource block PRB set used for transmission of the physical sidelink feedback channel PSFCH, and determining N PRBs from the PRB set as PSFCH resources mapped by one physical sidelink shared channel PSSCH, wherein N is an integer greater than 1. Since the number of PRBs occupied by the PSFCH in the frequency domain is increased, the number of PRBs occupied by the PSFCH in the frequency domain is greater than 1, and therefore, the PSFCH transmission coverage can be effectively enhanced and the PSFCH transmission reliability can be improved.
  • FIG2A is an interactive schematic diagram of a resource determination method according to an embodiment of the present disclosure.
  • a resource determination method which can be used in the communication system 100, the method includes:
  • Step S2101 The network device sends first information.
  • the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH.
  • information for configuring a PRB set for PSFCH transmission may be referred to as first information.
  • the number of PRB sets may be 1 or N.
  • a network device may configure 1 or N physical resource block PRB sets for PSFCH transmission.
  • the network device may indicate 1 or N physical resource block PRB sets for physical sidelink feedback channel PSFCH transmission by sending the first information to the terminal.
  • the first information may be carried by a new message, or the first information may also be carried based on an existing message.
  • a network device indicates a PRB set for transmission of a physical sidelink feedback channel PSFCH as an example.
  • a PRB set may include multiple PRBs.
  • N PRBs in the PRB set may be used as PSFCH resources mapped by a physical sidelink shared channel PSSCH, where N is an integer greater than 1.
  • at least two PRBs may be determined from multiple PRBs in the PRB set as PSFCH resources mapped by a physical sidelink shared channel PSSCH.
  • two PRBs may be selected from the PRB set, and the two PRBs may be used as PSFCH resources mapped by a physical sidelink shared channel PSSCH.
  • the terminal may use the mapped PSFCH resources to perform Hybrid Automatic Repeat reQuest (HARQ) feedback on the transmission of PSSCH.
  • HARQ Hybrid Automatic Repeat reQuest
  • the first information includes at least one of first indication information, second indication information, third indication information, and fourth indication information, wherein the first indication information is used to indicate 1 PRB set, the second indication information is used to indicate the set number N of PRB subsets, the third indication information is used to indicate the first number of PRBs included in the PRB subset, and the fourth indication information is used to indicate whether the first number of PRBs included in different PRB subsets is the same or different.
  • first indication information is used to indicate 1 PRB set
  • the second indication information is used to indicate the set number N of PRB subsets
  • the third indication information is used to indicate the first number of PRBs included in the PRB subset
  • the fourth indication information is used to indicate whether the first number of PRBs included in different PRB subsets is the same or different.
  • the first numbers of PRBs included in different PRB subsets are different.
  • the first numbers of PRBs included in multiple PRB subsets are different, or the first numbers of PRBs included in at least two PRB subsets are different. There is no limitation on this.
  • the first information may be used by the terminal to determine N PRBs from a PRB set, and use the determined N PRBs as PSFCH resources mapped by a physical sidelink shared channel PSSCH, where N is an integer greater than 1.
  • Step S2102 the terminal receives first information.
  • the terminal may refer to at least one of the first indication information, the second indication information, the third indication information, and the fourth indication information in the first information to determine N PRBs from one PRB set.
  • Step S2103 The terminal determines N PRB subsets whose frequency domain resources do not overlap with each other in one PRB set.
  • different PRB subsets may not overlap each other in frequency domain resources, thereby supporting the terminal to implement PSFCH transmission on different PRBs, thereby greatly improving PSFCH transmission coverage and further improving PSFCH transmission reliability.
  • each PRB subset contains a first number of PRBs, and the first number can be indicated by the first information, for example, the first number of PRBs included in the PRB subset can be indicated based on the third indication information.
  • each PRB subset contains a first number of PRBs, which can indicate that different PRB subsets contain the same number of PRBs, and the number of PRBs contained is the first number.
  • the terminal can determine N non-overlapping PRB subsets of frequency domain resources in 1 PRB set according to the fourth indication information, and each PRB subset contains the first number of PRBs. Then, the N PRB subsets can be used as N PRB sets respectively, and the determined N PRB sets can be used to determine N PRBs.
  • each PRB subset contains a different number of PRBs.
  • the number of PRBs contained in each PRB subset may be different from the number of PRBs contained in other PRB subsets, or for example, the number of PRBs contained in each PRB subset may be different from the number of PRBs contained in at least one PRB subset, and there is no restriction on this.
  • the number in each PRB subset may also be indicated by a third indication information, and the third information may be used to indicate the first number of PRBs contained in each PRB subset.
  • the terminal may determine N non-overlapping PRB subsets of frequency domain resources in one PRB set according to the fourth indication information, and at least two PRB subsets contain different first numbers of PRBs. Then, the N PRB subsets may be used as N PRB sets respectively, and the determined N PRB sets may be used to determine the N PRBs.
  • a non-overlapping PRB subset of N frequency domain resources can be determined in one PRB set according to the order of multiple PRB numbers from small to large. For example, the multiple PRB numbers in the one PRB set can be sorted in order from small to large, and then the non-overlapping PRB subset of N frequency domain resources can be determined from the one PRB set in turn with reference to each PRB number. Thereby, it is possible to effectively determine the non-overlapping PRB subset of N frequency domain resources from one PRB set, thereby improving the flexibility and convenience of determining the N PRB subsets.
  • the terminal may determine, in one PRB set, a non-overlapping PRB subset of N frequency domain resources according to the ascending order of multiple PRB sequence numbers based on one or more of the following methods:
  • N PRB subsets whose frequency domain resources do not overlap with each other are determined from one PRB set.
  • the terminal may determine N PRB subsets from one PRB set according to the ascending order of multiple PRB numbers in one PRB set and the first number of PRBs included in each PRB subset. For example, one PRB subset is formed for each first number of PRBs in the PRB set according to the ascending order of multiple PRB numbers, thereby obtaining N PRB subsets whose frequency domain resources do not overlap with each other.
  • the second method according to the ascending order of multiple PRB numbers, every L consecutive PRBs in the PRB set are grouped into a PRB subset to obtain N PRB subsets whose frequency domain resources do not overlap with each other.
  • L represents the number of consecutive PRBs.
  • the terminal may form a PRB subset for every L consecutive PRBs in a PRB set according to the order of multiple PRB numbers in a PRB set from small to large, so as to determine N PRB subsets from a PRB set.
  • a PRB subset is formed for every L consecutive PRBs in a PRB set according to the order of multiple PRB numbers in a PRB set from small to large, thereby obtaining N PRB subsets whose frequency domain resources do not overlap with each other.
  • the third method according to the ascending order of the multiple PRB sequence numbers, every second number of PRBs in the PRB set is grouped into a PRB subset, so as to obtain N PRB subsets whose frequency domain resources do not overlap with each other.
  • the terminal may form a PRB subset every second number of PRBs in a PRB set according to the order of multiple PRB numbers in a PRB set from small to large, so as to determine N PRB subsets from a PRB set.
  • a PRB subset is formed every PRB interval from a PRB set according to the order of multiple PRB numbers in a PRB set from small to large, thereby obtaining N PRB subsets whose frequency domain resources do not overlap with each other.
  • the embodiments of the present disclosure provide three methods to achieve the determination of N non-overlapping PRB subsets of frequency domain resources in one PRB set according to the order of multiple PRB sequence numbers from small to large, which can effectively improve the accuracy and flexibility of determining the non-overlapping PRB subsets of N frequency domain resources and effectively adapt to personalized communication scenario requirements.
  • Step S2104 determine one PRB from each PRB subset, so as to determine N PRBs in the N PRB subsets.
  • one PRB after determining N non-overlapping PRB subsets of frequency domain resources in one PRB set, one PRB can be determined from each PRB subset. Therefore, N PRBs corresponding to the N PRB subsets can be determined, and the determined N are used as PSFCH resources mapped by one physical sidelink shared channel PSSCH.
  • determining one PRB from each PRB set or each PRB subset to determine N PRBs may be implemented based on the following steps, including:
  • the first step determine the third number of candidate PRBs for PSFCH transmission mapped to a subchannel in a time slot in each PRB subset, determine the time slot number and subchannel number where a PSSCH is located, and determine the second information, wherein the second information is used to indicate mapping based on the starting subchannel or all subchannels occupied by the PSSCH.
  • the candidate PRB may be a PRB in a corresponding PRB subset. For example, a third number of candidate PRBs for PSFCH transmission mapped to a subchannel of a time slot is determined from each PRB subset, and the third number may be used to determine a fourth number and PRB sequence number of candidate PRBs for PSFCH transmission. The third number may be different from the fourth number.
  • the information used to indicate mapping based on the starting subchannel or all subchannels occupied by the PSSCH may be referred to as the second information.
  • the second information may be, for example, a high-level parameter sl-PSFCH-CandidateResourceType. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as startSubCH, it indicates mapping based on the starting subchannel occupied by the PSSCH. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as allocSubCH, it indicates mapping based on all subchannels occupied by the PSSCH.
  • Step 2 Determine a fourth number and PRB number of candidate PRBs for PSFCH transmission according to the third number, the time slot number, the subchannel number and the second information.
  • the fourth number of candidate PRBs for PSFCH transmission and the PRB number can be determined based on the second information.
  • different methods may be used to determine the fourth number and PRB sequence number of candidate PRBs for PSFCH transmission.
  • Step 3 number the fourth number of candidate PRBs in ascending order with the PRB sequence number as the first order and in ascending order with the cyclic shift logarithm as the second order.
  • the fourth number and PRB sequence number of candidate PRBs for PSFCH transmission may be determined based on the two
  • the candidate resources of the candidate PRBs are numbered in the order of the levels.
  • the fourth number of candidate PRBs may be first numbered in ascending order of the PRB sequence number using the PRB sequence number as the first order, and the candidate resources of the candidate PRBs may be numbered in ascending order of the cyclic shift logarithm using the cyclic shift logarithm as the second order, thereby obtaining the candidate resources of the numbered candidate PRBs.
  • Step 4 Determine the candidate resources for PSFCH transmission from the candidate resources of the candidate PRBs obtained by numbering, and determine a PRB number for transmission based on the candidate resources for PSFCH transmission, and use the PRB corresponding to the PRB number for transmission as a PRB determined from the corresponding PRB subset.
  • the candidate resources for PSFCH transmission can be determined from the candidate resources of the candidate PRB obtained by numbering, and the PRB to which the PRB sequence number corresponding to the determined candidate resource for PSFCH transmission belongs is used as the PRB determined from the corresponding PRB subset.
  • Each PRB subset is processed accordingly, thereby obtaining N PRBs corresponding to the N PRB subsets.
  • Step S2105 The terminal uses the mapped PSFCH resources to perform HARQ feedback on the transmission of the PSSCH.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2105.
  • step S2101 may be implemented as an independent embodiment
  • step S2102 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S2101+S2102 may be implemented as independent embodiments
  • steps S2101+S2102+S2103 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • the network device sends the first information, wherein the first information indicates the physical resource block PRB set used for the transmission of the physical sidelink feedback channel PSFCH, and the terminal determines N non-overlapping PRB subsets of frequency domain resources from the 1 PRB set indicated by the first information, and determines 1 PRB from each PRB subset to determine N PRBs from the N PRB subsets, and the determined N PRBs are used as PSFCH resources mapped by 1 physical sidelink shared channel PSSCH. Since the number of PRBs occupied by PSFCH in the frequency domain is increased, the number of PRBs occupied by PSFCH in the frequency domain is greater than 1, and therefore, the PSFCH transmission coverage can be effectively enhanced and the PSFCH transmission reliability can be improved.
  • N non-overlapping PRB subsets of frequency domain resources from 1 PRB set, and improve the flexibility and convenience of determining N PRB subsets.
  • N non-overlapping PRB subsets of frequency domain resources in one PRB set according to the ascending order of multiple PRB sequence numbers, the accuracy and flexibility of determining the non-overlapping PRB subsets of N frequency domain resources can be effectively improved, and it is effectively applicable to personalized communication scenario requirements.
  • FIG2B is an interactive schematic diagram of a resource determination method according to an embodiment of the present disclosure. As shown in FIG2B , the present disclosure embodiment relates to a resource determination method, which can be used in a communication system 100, and the method includes:
  • Step S2201 The network device sends first information.
  • the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH.
  • each PRB set may include multiple PRBs.
  • N PRBs corresponding to the N PRB sets may be used as PSFCH resources mapped by one physical sidelink shared channel PSSCH, where N is an integer greater than 1.
  • one PRB may be determined from multiple PRBs in each PRB set to obtain N PRBs, and the N PRBs may be used as PSFCH resources mapped by one physical sidelink shared channel PSSCH.
  • the terminal may use the mapped PSFCH resources to perform Hybrid Automatic Repeat reQuest (HARQ) feedback on the transmission of PSSCH.
  • HARQ Hybrid Automatic Repeat reQuest
  • the first information may include first indication information, wherein the first indication information is used to indicate N PRB sets, and the number of PRBs included in different PRB sets is the same or different.
  • first indication information is used to indicate N PRB sets, and the number of PRBs included in different PRB sets is the same or different.
  • the number of PRBs included in different PRB sets is different, for example, the number of PRBs included in multiple PRB sets is different, or the number of PRBs included in at least two PRB sets is different, without limitation. In some embodiments, the number of PRBs included in different PRB sets is the same, which means that the number of PRBs included in different PRB sets is the same.
  • the first information can be used by the terminal to determine 1 PRB from each PRB set to determine N PRBs, and use the determined N PRBs as PSFCH resources mapped by 1 physical sidelink shared channel PSSCH, where N is an integer greater than 1.
  • Step S2202 the terminal receives first information.
  • the terminal may refer to the first indication information in the first information to determine 1 PRB from each PRB set to determine N PRBs.
  • Step S2203 determine one PRB from each PRB set, so as to determine N PRBs in the N PRB sets.
  • N PRBs may be used as PSFCH resources mapped to one physical sidelink shared channel PSSCH.
  • determining one PRB from each PRB set to determine N PRBs may be implemented based on the following steps:
  • the first step determine the third number of candidate PRBs for PSFCH transmission mapped to a subchannel of a time slot in each PRB set, determine the time slot number and subchannel number where a PSSCH is located, and determine the second information, wherein the second information is used to indicate mapping based on the starting subchannel or all subchannels occupied by the PSSCH.
  • the candidate PRB may be a PRB in a corresponding PRB set. For example, a third number of candidate PRBs for PSFCH transmission mapped to a subchannel of a time slot is determined from each PRB set, and the third number may be used to determine a fourth number and PRB sequence number of candidate PRBs for PSFCH transmission. The third number may be different from the fourth number.
  • the information used to indicate mapping based on the starting subchannel or all subchannels occupied by the PSSCH may be referred to as the second information.
  • the second information may be, for example, a high-level parameter sl-PSFCH-CandidateResourceType. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as startSubCH, it indicates mapping based on the starting subchannel occupied by the PSSCH. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as allocSubCH, it indicates mapping based on all subchannels occupied by the PSSCH.
  • Step 2 Determine a fourth number and PRB number of candidate PRBs for PSFCH transmission according to the third number, the time slot number, the subchannel number and the second information.
  • the fourth number of candidate PRBs for PSFCH transmission and the PRB number can be determined based on the second information.
  • different methods may be used to determine the fourth number and PRB sequence number of candidate PRBs for PSFCH transmission.
  • Step 3 number the fourth number of candidate PRBs in ascending order with the PRB sequence number as the first order and in ascending order with the cyclic shift logarithm as the second order.
  • the candidate resources of the candidate PRBs may be numbered based on the order of the two levels. For example, the fourth number of candidate PRBs may be numbered in ascending order of the PRB sequence number with the PRB sequence number as the first order, and the candidate resources of the candidate PRBs may be numbered in ascending order of the cyclic shift logarithm with the cyclic shift logarithm as the second order, thereby obtaining the candidate resources of the numbered candidate PRBs.
  • Step 4 Determine the candidate resources for PSFCH transmission from the candidate resources of the candidate PRBs obtained by numbering, and determine a PRB number for transmission based on the candidate resources for PSFCH transmission, and use the PRB corresponding to the PRB number for transmission as a PRB determined from the corresponding PRB set.
  • the candidate resources for PSFCH transmission can be determined from the candidate resources of the candidate PRB obtained by numbering, and the PRB to which the PRB sequence number corresponding to the determined candidate resource for PSFCH transmission belongs is used as the PRB determined from the corresponding PRB set.
  • Each PRB set is processed accordingly, thereby obtaining N PRBs corresponding to the N PRB sets.
  • Step S2204 The terminal uses the mapped PSFCH resources to perform HARQ feedback on the transmission of the PSSCH.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of steps S2201 to S2204.
  • step S2201 may be implemented as an independent embodiment
  • step S2202 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S2201+S2202 may be implemented as independent embodiments
  • steps S2201+S2202+S2203 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • the network device sends the first information, wherein the first information indicates the physical resource block PRB set used for the transmission of the physical sidelink feedback channel PSFCH, and the terminal determines 1 PRB in each PRB set indicated by the first information to determine N PRBs in N PRB sets, and the determined N PRBs are used as PSFCH resources mapped by 1 physical sidelink shared channel PSSCH. Since the number of PRBs occupied by PSFCH in the frequency domain is increased, the number of PRBs occupied by PSFCH in the frequency domain is greater than 1, and therefore, the PSFCH transmission coverage can be effectively enhanced and the PSFCH transmission reliability can be improved. It is possible to effectively determine N PRBs from N PRB sets, improve the flexibility and convenience of determining N PRBs, and effectively adapt to personalized communication scenario requirements.
  • FIG2C is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG2C , the present disclosure embodiment relates to a resource determination method, which can be used in a communication system 100, and the method includes:
  • Step S2301 The network device sends first information.
  • the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH.
  • a network device indicates one PRB set for transmission of a physical sidelink feedback channel PSFCH.
  • the terminal may use the mapped PSFCH resources to perform Hybrid Automatic Repeat reQuest (HARQ) feedback on the transmission of the PSSCH.
  • HARQ Hybrid Automatic Repeat reQuest
  • the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate 1 PRB set, and the second indication information is used to indicate that each PRB subset contains N PRBs.
  • first indication information is used to indicate 1 PRB set
  • second indication information is used to indicate that each PRB subset contains N PRBs.
  • the first information can be used by the terminal to determine a PRB subset from multiple sub-PRB sets, and use N PRBs in the determined PRB subset as PSFCH resources mapped by a physical sidelink shared channel PSSCH, where N is an integer greater than 1.
  • Step S2302 the terminal receives first information.
  • the terminal may refer to at least one of the first indication information and the second indication information in the first information to determine one PRB subset from multiple PRB subsets.
  • Step S2303 Based on the rule that every N PRBs in one PRB set form one PRB subset, according to the order of PRB numbers in the PRB set from small to large and N, determine the total number of PRB subsets and the sequence number of each PRB subset.
  • the terminal can determine the total number of PRB subsets and the sequence number of each PRB subset according to the order of the PRB sequence numbers in the PRB set from small to large and N.
  • the total number of PRB subsets and the sequence number of each PRB subset can be used to select a PRB subset from multiple PRB subsets included in the PRB set, and the N PRBs included in the one PRB subset can be used as PSFCH resources mapped by one physical sidelink shared channel PSSCH.
  • Step S2304 Determine N PRBs in one PRB subset from the multiple PRB subsets according to the total number of PRB subsets and the sequence number of each PRB subset.
  • determining N PRBs in one PRB subset from multiple PRB subsets may be implemented based on the following steps:
  • the first step determine the third number of candidate PRB subsets for PSFCH transmission mapped to a subchannel of a time slot, determine the time slot number and subchannel number where a PSSCH is located, and determine the second information, wherein the second information is used to indicate mapping based on the starting subchannel or all subchannels occupied by the PSSCH.
  • the candidate PRB subset may be a PRB subset in a PRB set. For example, a third number of candidate PRB subsets for PSFCH transmission mapped to a subchannel of a time slot may be determined, and the third number may be used to determine a fourth number of candidate PRB subsets for PSFCH transmission and a sequence number of the PRB subset. The third number may be different from the fourth number.
  • the information used to indicate mapping based on the starting subchannel or all subchannels occupied by the PSSCH may be referred to as the second information.
  • the second information may be, for example, a high-level parameter sl-PSFCH-CandidateResourceType. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as startSubCH, it indicates mapping based on the starting subchannel occupied by the PSSCH. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as allocSubCH, it indicates mapping based on all subchannels occupied by the PSSCH.
  • Step 2 Determine a fourth number of candidate PRB subsets and the sequence number of the PRB subsets for PSFCH transmission according to the third number, the time slot sequence number, the subchannel sequence number and the second information.
  • the fourth number of candidate PRB subsets for PSFCH transmission and the sequence number of the PRB subset can be determined based on the second information.
  • different methods may be used to determine the fourth number of candidate PRB subsets and the sequence number of the PRB subsets for PSFCH transmission.
  • Step 3 number the fourth number of candidate PRB subsets in ascending order with the sequence number of the PRB subset as the first order, and number them in ascending order with the cyclic shift logarithm as the second order.
  • the candidate resources of the candidate PRB subset can be numbered based on the order of the two levels. For example, the fourth number of candidate PRB subsets can be first numbered from small to large according to the sequence number of the PRB subset with the sequence number of the PRB subset as the first order, and the candidate resources of the candidate PRB subset can be numbered from small to large according to the cyclic shift logarithm as the second order, so as to obtain the candidate resources of the numbered candidate PRB subset.
  • Step 4 Determine the serial number of a PRB subset used for PSFCH transmission from the candidate PRB subsets obtained by numbering, and use the candidate PRB subset corresponding to the serial number of the PRB subset used for transmission as the determined PRB subset.
  • the sequence number of one PRB subset used for PSFCH transmission can be determined from the candidate PRB subset obtained by numbering, and the PRB subset to which the sequence number of the one PRB subset belongs can be assigned.
  • the set is used as a determined PRB subset, and the N PRBs in the determined PRB subset are used as PSFCH resources mapped to a physical sidelink shared channel PSSCH.
  • Step S2305 The terminal uses the mapped PSFCH resources to perform HARQ feedback on the transmission of the PSSCH.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of steps S2301 to S2305.
  • step S2301 may be implemented as an independent embodiment
  • step S2302 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S2301+S2302 may be implemented as independent embodiments
  • steps S2301+S2302+S2303 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • the network device sends the first information, wherein the first information indicates the physical resource block PRB set used for the transmission of the physical sidelink feedback channel PSFCH, and the terminal forms a PRB subset based on the rule that every N PRBs in a PRB set indicated by the network device form a PRB subset, according to the order of the PRB sequence numbers in the PRB set from small to large and N, determines the total number of PRB subsets and the sequence number of each PRB subset, and determines N PRBs in a PRB subset from multiple PRB subsets according to the total number of PRB subsets and the sequence number of each PRB subset.
  • the number of PRBs occupied by the PSFCH in the frequency domain is increased, the number of PRBs occupied by the PSFCH in the frequency domain is greater than 1, and therefore, the PSFCH transmission coverage can be effectively enhanced and the PSFCH transmission reliability can be improved. It is possible to effectively determine a PRB subset from multiple PRB sets, and use the N PRBs in the determined PRB subset as PSFCH resources mapped by a physical sidelink shared channel PSSCH, effectively improving the flexibility and convenience of determining the N PRBs, and effectively adapting to personalized communication scenario requirements.
  • FIG3A is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to a resource determination method, which can be used in a terminal. The method includes:
  • Step S3101 receiving first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH.
  • Step S3102 determining N PRBs from the PRB set as PSFCH resources mapped to one physical sidelink shared channel PSSCH, and using the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of the PSSCH, where N is an integer greater than 1.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of step S3101 to step S3102.
  • step S3101 may be implemented as an independent embodiment
  • step S3102 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S3101+S3102 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • FIG3B is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a resource determination method, which can be used in a terminal. The method includes:
  • Step S3201 Receive first information, where the first information indicates a physical resource block PRB set used for physical sidelink feedback channel PSFCH transmission.
  • Step S3202 determine N non-overlapping PRB subsets in one PRB set, wherein each PRB subset contains a first number of PRBs, or at least two PRB subsets contain different numbers of PRBs.
  • Step S3203 determine N PRBs from the PRB subset as PSFCH resources mapped to one physical sidelink shared channel PSSCH, and use the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of the PSSCH.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of steps S3201 to S3203.
  • step S3201 may be implemented as an independent embodiment
  • step S3202 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S3201+S3202 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • FIG3C is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG3C , the present disclosure embodiment relates to a resource determination method, which can be used in a terminal. The method includes:
  • Step S3301 Receive first information, where the first information indicates a physical resource block PRB set used for physical sidelink feedback channel PSFCH transmission.
  • Step S3302 in one PRB set, according to the ascending order of multiple PRB numbers, determine N PRB subsets whose frequency domain resources do not overlap with each other.
  • determining N non-overlapping PRB subsets of frequency domain resources in one PRB set according to the ascending order of multiple PRB sequence numbers includes any of the following:
  • N PRB subsets whose frequency domain resources do not overlap with each other according to the ascending order of the multiple PRB sequence numbers and the first number of PRBs included in the PRB subset;
  • every L consecutive PRBs in the PRB set are grouped into a PRB subset to obtain N PRB subsets whose frequency domain resources do not overlap with each other, where L is an integer;
  • every second number of PRBs in the PRB set is grouped into a PRB subset, so as to obtain N PRB subsets whose frequency domain resources do not overlap with each other.
  • Step S3303 determine 1 PRB from each PRB subset to determine N PRBs in N PRB subsets, and use the N PRBs as PSFCH resources mapped by 1 physical sidelink shared channel PSSCH, and use the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of PSSCH.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of steps S3301 to S3303.
  • step S3301 may be implemented as an independent embodiment
  • step S3302 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S3301+S3302 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • FIG3D is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG3D , the present disclosure embodiment relates to a resource determination method, which can be used in a terminal. The method includes:
  • Step S3401 Receive first information, where the first information indicates a set of N physical resource blocks PRB used for transmission of a physical sidelink feedback channel PSFCH.
  • Step S3402 determine 1 PRB from each PRB set to determine N PRBs in N PRB sets, and use the N PRBs as PSFCH resources mapped by 1 physical sidelink shared channel PSSCH, and use the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of PSSCH.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of step S3401 to step S3402.
  • step S3401 may be implemented as an independent embodiment
  • step S3402 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S3401+S3402 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • determining one PRB from each PRB set or each PRB subset to determine N PRBs includes:
  • the fourth number of candidate PRBs are numbered in ascending order by PRB number using PRB number as a first order, and numbered in ascending order by cyclic shift logarithm using cyclic shift logarithm as a second order;
  • a PRB number for transmission is determined, and a PRB corresponding to the PRB number for transmission is used as a PRB determined from each PRB set or each PRB subset.
  • FIG3E is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG3E , the present disclosure embodiment relates to a resource determination method, which can be used in a terminal. The method includes:
  • Step S3501 Receive first information, where the first information indicates a set of N physical resource blocks PRB used for transmission of a physical sidelink feedback channel PSFCH.
  • the first information includes at least one of the following:
  • First indication information where the first indication information is used to indicate one PRB set
  • Second indication information where the second indication information is used to indicate that each PRB subset includes N PRBs.
  • Step S3502 Based on the rule that every N PRBs in one PRB set form one PRB subset, according to the order of PRB numbers in the PRB set from small to large and N, determine the total number of PRB subsets and the sequence number of each PRB subset.
  • Step S3503 Determine N PRBs in one PRB subset from multiple PRB subsets according to the total number of PRB subsets and the sequence number of each PRB subset, and use the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of the PSSCH.
  • N PRBs in a PRB subset including:
  • the fourth number of candidate PRB subsets are numbered in ascending order based on the sequence numbers of the PRB subsets as a first order, and are numbered in ascending order based on the cyclic shift logarithms as a second order;
  • the serial number of a PRB subset used for PSFCH transmission is determined from the candidate PRB subsets obtained by numbering, and the candidate PRB subset corresponding to the serial number of the PRB subset used for transmission is used as the determined PRB subset.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of steps S3501 to S3503.
  • step S3501 may be implemented as an independent embodiment
  • step S3502 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S3501+S3502 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • FIG4 is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure. As shown in FIG4, the embodiment of the present disclosure relates to a resource determination method, which can be used in a network device. The method includes:
  • Step S4101 sending the first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH, and the N PRBs in the PRB set are used as PSFCH resources mapped by one physical sidelink shared channel PSSCH, and the mapped PSFCH resources are used for hybrid automatic repeat request HARQ feedback for the transmission of PSSCH, and N is an integer greater than 1.
  • step S4101 may be implemented as an independent embodiment, but 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 implementation modes or other examples.
  • FIG5 is an interactive schematic diagram of a resource determination method according to another embodiment of the present disclosure.
  • the embodiment of the present disclosure relates to a resource determination method, which can be used in a communication system.
  • the communication system includes a terminal and a network device; the method includes:
  • Step S5101 The network device is used to send first information, where the first information indicates a physical resource block PRB set used for physical sidelink feedback channel PSFCH transmission.
  • step S5102 the terminal is used to receive the first information, and determine N PRBs from the PRB set as PSFCH resources mapped by one physical sidelink shared channel PSSCH, and use the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of PSSCH, where N is an integer greater than 1.
  • the resource determination method involved in the embodiment of the present disclosure may include at least one of step S5101 to step S5102.
  • step S5101 may be implemented as an independent embodiment
  • step S5102 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S5101+S5102 may be implemented as independent embodiments, but 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 implementation modes or other examples.
  • the PSFCH resource mapped to each PSSCH can be determined in the PRB set configured for PSFCH transmission.
  • An example is as follows:
  • Step 1 Determine non-overlapping PRB sets on N frequency domain resources in one resource pool.
  • Step 1 determining non-overlapping PRB sets on N frequency domain resources in one resource pool, there are two implementation methods:
  • Embodiment 1-1 Non-overlapping PRB sets on N frequency domain resources are N subsets in a pre-configured PRB set.
  • the PRBs in the PRB set are divided into N PRB subsets in order from small to large PRB numbers.
  • the PRBs are evenly divided into N PRB subsets, each of which has L PRBs.
  • the PRBs are unevenly divided into N PRB subsets, and the number of PRBs in each PRB subset is different.
  • N 2, high-level signaling configures 1 PRB set, the bitmap value is 111111000110100111111111100, and the corresponding usable PRB sequence numbers are 0-21.
  • the PRB set is divided into 2 PRB subsets according to the logical order of PRBs.
  • PRB subset 1 contains PRBs numbered 0-10, and PRB subset 2 contains PRBs numbered 11-21.
  • N 2, high-layer signaling configures 1 PRB set, the bitmap value is 111111000110100111111111100, and the corresponding PRB sequence number is 0-21.
  • the PRB set is unevenly divided into 2 PRB subsets according to the logical order of PRBs.
  • PRB subset 1 contains PRBs with sequence numbers 0-15, and PRB subset 2 contains PRBs with sequence numbers 16-21.
  • Embodiment 1-2 non-overlapping PRB sets on N frequency domain resources are configured respectively through high-level signaling and indicated by N bitmaps.
  • the number of PRBs contained in the N PRB sets is the same or different.
  • N 2.
  • the high-layer signaling uses two bitmaps to configure two PRB sets.
  • One bitmap value is 000111100001110001111 to configure PRB set 1
  • the other bitmap value is 1101101011010110000110101 to configure PRB set 2.
  • Embodiment 1-3 Determine N PRB subsets in one pre-configured PRB set according to the following rules.
  • high-level signaling configures one PRB set, with a bitmap value of 1111110001101001111111111111100111000011110101, and corresponding PRB numbers of 0-30.
  • this PRB set every 15 consecutive PRBs form a PRB subset, that is, the PRB numbers in PRB subset 1 are 0-14, and the PRB numbers in PRB subset 2 are 15-29.
  • high-level signaling configures 1 PRB set
  • the bitmap value is 111111000110100111111111111100111000011110101
  • the corresponding PRB sequence number is 0-30. Every 2 PRBs form a PRB set.
  • the sequence numbers corresponding to the PRBs contained in PRB subset 1 are ⁇ 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 ⁇
  • the sequence numbers corresponding to the PRBs contained in PRB subset 2 are ⁇ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29 ⁇ .
  • Step 2 In determining each PRB set, use the following steps to determine 1 PRB. A total of N PRBs are determined in N PRB sets, and the determined N PRBs are the frequency domain resources of the PSFCH corresponding to 1 PSSCH. The steps are as follows:
  • Step 1 In one PRB set, calculate the number of PRBs used for PSFCH transmission mapped to a subchannel in a time slot:
  • N subch is the number of subchannels in the resource pool, is the period of PSFCH.
  • Step 2 According to the following formula, calculate the number of PRBs and PRB numbers used for PSFCH transmission mapped to the PSSCH in time slot i and subchannel j:
  • Step 3 Determine the set of transmission resources by the following formula
  • sl-PSFCH-CandidateResourceType is the number of configured cyclic shift pairs. If the higher-level parameter sl-PSFCH-CandidateResourceType is configured as startSubCH, then Indicates mapping based on the lowest subchannel number where the PSSCH is located to determine the number of available PRBs and PRB numbers for the PSFCH. Contains PRBs; if the higher-level parameter sl-PSFCH-CandidateResourceType is configured as allocSubCH, then Map all subchannel numbers occupied by PSSCH to determine the number of available PRBs and PRB numbers of PSFCH. Contains PRBs.
  • the resources in are first numbered in ascending order by PRB sequence number and then by cyclic shift value.
  • Step 4 The UE determines the sequence number of one PRB used for PSFCH transmission resources using the following formula:
  • P ID and M ID use the values specified in legacy sidelink.
  • P ID is the source ID indicated by the second-stage sidelink control information (SCI). If the service type is multicast hybrid automatic repeat request confirmation HARQ ACK information or hybrid automatic repeat request non-confirmation HARQ NACK feedback, M ID is indicated by the higher layer and is the multicast member ID. Otherwise, M ID is 0. mod refers to the modulus operator.
  • Step 1 Determine a pre-configured PRB set for PSFCH transmission in a resource pool, and determine the total number of PRB subsets and the sequence number of each PRB subset in the PSFCH set according to the rule that every N PRBs form a PRB subset.
  • step 1 determine the total number of PRB subsets and the sequence number of each PRB subset in a PSFCHPRB set in the following way:
  • Embodiment 1 In a pre-configured PSF CHPRB set, the PRBs with a bit value of 1 are renumbered according to the rule that every N PRBs are one PRB subset, and according to the sequence numbers of the numbered PRBs from small to large, in the configured PRB set, the total number of PRB subsets and the PRB sequence numbers contained in each PRB subset are determined.
  • the pre-configured PSFCHPRB is indicated using a bitmap
  • the PRB set is 0010111110011100011111001110010101110110
  • the available PRBs in the PRBset are renumbered to 0, 1, 2, 3 ... 23.
  • N 2
  • every 2 PRBs in the PRBset form a PRB subset.
  • the total number of PRB subsets determined in the PSFCHPRB set is 12, and the sequence numbers of the PRB subsets are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11.
  • FIG6 is a schematic diagram of a PRB subset determination method in an embodiment of the present disclosure.
  • Step 2 In the determined total PRB subset, use the following steps to determine the frequency domain resources of the PSFCH corresponding to each PSSCH.
  • Each PSFCH frequency domain resource contains N PRBs. The steps are as follows:
  • Step 1 Determine the number of PRBsubsets mapped to a subchannel on a time slot:
  • Nsubch is the number of subchannels in the resource pool, is the period of PSFCH.
  • Step 2 According to the following formula, determine the number and sequence number of PRBsubsets mapped to the PSSCH with time slot sequence number i and subchannel sequence number j:
  • Step 3 Determine the set of transmission resources for PSFCH by the following formula:
  • the higher-level parameter sl-PSFCH-CandidateResourceType is configured as startSubCH, then That is, the number and sequence number of PRBsubsets are mapped to the lowest subchannel sequence number where PSSCH is located. If the high-level parameter sl-PSFCH-CandidateResourceType is configured as allocSubCH, then The number and sequence number of PRBsubsets are mapped to the sequence numbers of all subchannels occupied by PSSCH.
  • Step 4 Determine the resources The sorting and renumbering are performed in the following order: first sorting by PRBsubset(s) in ascending order, and then sorting by cyclic shift value within each PRBsubset.
  • Step 5 Using the following formula, the UE determines the PRBsubset number of the PSFCH transmission resource corresponding to the PSSCH:
  • P ID and M ID use the values specified by legacy sidelink.
  • P ID is the source ID indicated by the second-stage SCI. If the service type is multicast HARQ-ACK/NACK feedback, M ID is indicated by the higher layer and is the multicast member ID. Otherwise, M ID is 0.
  • FIG7A is a schematic diagram of the structure of a resource determination device proposed in an embodiment of the present disclosure.
  • the resource determination device includes: a transceiver module for receiving first information, wherein the first information indicates a physical resource block PRB set for transmission of a physical sidelink feedback channel PSFCH; a processing module for determining N PRBs from the PRB set as PSFCH resources mapped by one physical sidelink shared channel PSSCH, and using the mapped PSFCH resources to perform hybrid automatic repeat request HARQ feedback on the transmission of PSSCH, wherein N is an integer greater than 1.
  • the above-mentioned transceiver module is used to execute the relevant steps executed by the terminal in any of the above methods, which will not be repeated here.
  • the resource determination device also includes at least one of a sending module and a receiving module, the sending module is used to execute the steps related to sending performed by the terminal in any of the above methods, and the receiving module is used to execute the steps related to receiving performed by the terminal in any of the above methods, which will not be repeated here.
  • the sending module is used to execute the steps related to sending performed by the terminal in any of the above methods
  • the receiving module is used to execute the steps related to receiving performed by the terminal in any of the above methods, which will not be repeated here.
  • Fig. 7B is a schematic diagram of the structure of a resource determination device proposed in another embodiment of the present disclosure.
  • the resource determination device includes: a transceiver module, which is used to send first information, wherein the first information indicates a physical resource block PRB set used for transmission of a physical sidelink feedback channel PSFCH, and a PSFCH resource mapped as a physical sidelink shared channel PSSCH in the N PRBs of the PRB set, and the mapped PSFCH resource is used for hybrid automatic repeat request HARQ feedback for the transmission of PSSCH, and N is an integer greater than 1.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • 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, and instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the 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 inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • FIG8A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure, and the communication device 8100 includes one or more processors 8101.
  • the processor 8101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may 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 a program, and process the data of the program.
  • the processor 8101 is used to call instructions so that the communication device 8100 executes any of the above methods.
  • the communication device 8100 further includes one or more memories 8102 for storing instructions.
  • the memory 8102 may also be outside the communication device 8100.
  • the communication device 8100 further includes one or more transceivers 8103.
  • the communication steps such as sending and receiving in the above method are executed by the transceiver 8103, and the other steps are executed by the processor 8101.
  • the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102.
  • the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices.
  • the interface circuit 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.
  • the communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A.
  • 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 and 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, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • FIG8B is a schematic diagram of the structure of the chip proposed in the embodiment of the present disclosure.
  • the communication device 8100 can be a chip or a chip system
  • the schematic diagram of the structure of the chip 8200 shown in FIG8B can be referred to, but it is not limited thereto.
  • the chip 8200 includes one or more processors 8201, and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above methods.
  • the chip 8200 also includes one or more interface circuits 8202, the interface circuit 8202 is connected to the memory 8203, the interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to the memory 8203 or other devices.
  • the interface circuit 8202 can read the instructions stored in the memory 8203 and send the instructions to the processor 8201.
  • the terms such as interface circuit, interface, transceiver pin, transceiver, etc. can be replaced with each other.
  • the chip 8200 also includes one or more memories 8203 for storing instructions.
  • all or part of the memory 8203 can be outside the chip 8200.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP), etc.;
  • the processor can realize 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 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 processor loads a configuration document to implement the process of hardware circuit configuration, which 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.
  • a hardware circuit designed for artificial intelligence which can be understood as an ASIC, such as a neural network processing unit (Neural Network Processing Unit, NPU), a tensor processing unit (Tensor Processing Unit, TPU), a deep learning processing unit (Deep learning Processing Unit, DPU), etc.
  • the present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute 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 execute any one of the above methods.
  • the computer program product includes one or more computer programs.
  • 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 a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • 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.
  • 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)
  • DVD high-density digital video disc
  • SSD solid state disk

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Abstract

La présente divulgation concerne un procédé et un appareil de détermination de ressources, un dispositif de communication, un système de communication et un support de stockage. Le procédé comprend les étapes suivantes : un terminal reçoit des premières informations, les premières informations indiquant un ensemble de blocs de ressources physiques (PRB) pour une transmission de canal de rétroaction de liaison latérale physique (PSFCH) ; et détermine, à partir de l'ensemble de PRB, N PRB pour servir de ressources PSFCH mappées par un canal partagé de liaison latérale physique (PSSCH), et utilise les ressources PSFCH mappées pour effectuer une rétroaction de demande de répétition automatique hybride (HARQ) lors de la transmission du PSSCH, N étant un nombre entier supérieur à 1. Selon le procédé de la présente divulgation, la fiabilité de la transmission de PSFCH peut être efficacement améliorée.
PCT/CN2023/121258 2023-09-25 2023-09-25 Procédé et appareil de détermination de ressources, dispositif de communication, système de communication et support de stockage Pending WO2025065191A1 (fr)

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CN202380011289.4A CN117546431A (zh) 2023-09-25 2023-09-25 资源确定方法及装置、通信设备、通信系统、存储介质

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