WO2020019762A1 - 一种随机接入方法、终端设备、网络设备及存储介质 - Google Patents
一种随机接入方法、终端设备、网络设备及存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
Definitions
- Embodiments of the present application relate to the field of wireless communication technologies, and in particular, to a random access method, a terminal device, a network device, and a storage medium.
- 5G Fifth Generation (5 th Generation, 5G) new radio (New Radio, NR) system, random access (RACH) procedure with a long term evolution (Long Term Evolution, LTE) system similar to the RACH procedure is not suitable for systems in NR A low-latency scenario; therefore, it is an urgent problem to provide a random access method suitable for low-latency in an NR system.
- 5G 5 th Generation, 5G new radio (New Radio, NR) system
- RACH random access
- LTE Long Term Evolution
- the embodiments of the present application provide a random access method, a terminal device, a network device, and a storage medium, which can aim at a low-latency scenario in an NR system and quickly implement random access.
- a random access method including: a terminal device determining a first physical random access channel (Physical Random Access Channel (PRACH)) resource set and a second PRACH resource set, the first PRACH resource set being used PRACH transmission in the first type of random access process, the second PRACH resource set is used for PRACH transmission in the second type of random access process, and the first PRACH resource and the first PRACH resource included in the first PRACH resource set Said at least one second PRACH resource included in the second PRACH resource set is different;
- PRACH Physical Random Access Channel
- the terminal device determines a target PRACH resource from the first PRACH resource set or the second PRACH resource set, and the target PRACH resource is used for PRACH transmission in a random access process.
- a random access method including: a network device determining a first PRACH resource set and a second PRACH resource set, the first PRACH resource set being used for PRACH transmission in a first type of random access process
- the second PRACH resource set is used for PRACH transmission in the second type of random access process, the first PRACH resource included in the first PRACH resource set and the second PRACH included in the second PRACH resource set
- the network device determines to perform the first type of random access procedure or the second type of random access procedure based on the received PRACH resource set to which the target PRACH resource belongs.
- a terminal device is provided to execute the method in the first aspect or the implementations thereof.
- the terminal device includes a functional module for executing the method in the above-mentioned first aspect or each implementation manner thereof.
- a network device including a processor and a memory.
- the memory is used to store a computer program
- the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or the implementations thereof.
- a chip is provided for implementing any one of the foregoing first to second aspects or a method in each implementation thereof.
- the chip includes a processor for invoking and running a computer program from a memory, so that a device installed with the chip executes any one of the first aspect to the second aspect described above or implementations thereof. method.
- a computer-readable storage medium for storing a computer program that causes a computer to execute the method in any one of the first to second aspects described above or in its implementations.
- a computer program product including computer program instructions that cause a computer to execute any one of the first to second aspects described above or a method in each implementation thereof.
- a computer program that, when run on a computer, causes the computer to execute any one of the first to second aspects described above or a method in each implementation thereof.
- the terminal device determines a first PRACH resource set used for PRACH transmission in the first type of random access process and a second PRACH resource set used for PRACH transmission in the second type of random access process, and Determining, from the first PRACH resource set or the second PRACH resource set, a target PRACH resource for PRACH transmission in a random access process; so that a network device can determine a target for sending the PRACH after receiving the PRACH
- the PRACH resource belongs to the first PRACH resource set or the second PRACH resource set; in this way, when the network device determines that the target PRACH resource belongs to the first PRACH resource set or the second PRACH resource set, it can determine that it executes the response corresponding to the first PRACH resource set.
- the first type of random access process, or the second type of random access process corresponding to the second PRACH resource set is performed; for the scenario of low latency in the NR system, random access can be quickly realized.
- FIG. 1 is a schematic flowchart of a random access method of an NR system in the related art.
- FIG. 2 is a schematic flowchart of a process of an improved random access method provided by an embodiment of the present application.
- FIG. 3 is a schematic diagram of a communication system architecture according to an embodiment of the present application.
- FIG. 4 is a schematic diagram of a random access method applied to a terminal device according to an embodiment of the present application.
- FIG. 5 is a schematic diagram of a first repetition period and a second repetition period according to an embodiment of the present application.
- FIG. 6 is a schematic diagram of a first sequence group and a second sequence group according to an embodiment of the present application.
- FIG. 7 is a schematic diagram of a random access method applied to a network device according to an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
- FIG. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.
- FIG. 11 is a schematic block diagram of a chip according to an embodiment of the present application.
- FIG. 12 is a schematic block diagram of a communication system according to an embodiment of the present application.
- Random Access (RACH) process in the related technology is first introduced. As shown in FIG. 1, the processing flow of the RACH process is four steps:
- Step S101 The terminal device sends a random access Preamble to the network device through a message 1 (MSG1).
- MSG1 message 1
- Step S102 the network device detects that a terminal device sends a preamble, and the terminal device sends a Random Access Response (RAR) message to the terminal device through MSG2 to inform the terminal device of the uplink resource information that can be used when sending MSG3. , Assigning a temporary wireless network temporary identity (RNTI) to the terminal device, and providing a time advance command for the terminal device.
- RAR Random Access Response
- Step S103 After receiving the RAR message, the terminal device sends MSG3 in the uplink resource designated by the RAR message, and the MSG3 carries a temporary identification information specific to the terminal device.
- Step S104 The network device sends MSG4 to the terminal device.
- the MSG4 includes a contention resolution message, and at the same time, allocates uplink transmission resources to the terminal device.
- the terminal device When receiving the MSG4 from the network device, the terminal device will detect whether the terminal device specific temporary identifier sent by the terminal device in the MSG3 is included in the contention resolution message sent by the base station. The process fails, and the terminal device needs to initiate the random access process again from the first step.
- Step S201 The terminal device sends preamble and uplink information to the network device.
- the uplink information may be sent through a physical uplink shared channel (PUSCH) or other uplink channels or other uplink reference signals.
- PUSCH physical uplink shared channel
- step S202 the network device sends a random access response and a contention resolution (Random Access Response with contention resolution) to the terminal device.
- a contention resolution Random Access Response with contention resolution
- an embodiment of the present invention provides a random access method.
- the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile (GSM) system and multiple code divisions. Address (Code Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system , LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access, WiMAX) communication system or 5G NR system.
- GSM Global System of Mobile
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access, WiMAX
- the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or a communication terminal or a terminal).
- the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located within the coverage area.
- the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system.
- BTS Base Transceiver Station
- NodeB NodeB
- the network device may be a mobile switching center, relay station, access point, vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in public land mobile networks (PLMN) that will evolve in the future.
- PLMN public land mobile networks
- the communication system 100 further includes at least one terminal device 120 located within a coverage area of the network device 110.
- terminal equipment used herein includes, but is not limited to, connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection ; And / or another data connection / network; and / or via a wireless interface, such as for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or Internet of Things (IoT) devices.
- PSTN Public Switched Telephone Networks
- DSL Digital Subscriber Line
- WLAN Wireless Local Area Networks
- DVB-H Digital Video Broadband
- satellite networks satellite networks
- AM- FM broadcast transmitter AM- FM broadcast transmitter
- IoT Internet of Things
- a terminal device configured to communicate through a wireless interface may be referred to as a “wireless communication terminal”, a “wireless terminal”, or a “mobile terminal”.
- mobile terminals include, but are not limited to, satellite or cellular phones; personal communications systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communications capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device.
- PCS personal communications systems
- GPS Global Positioning System
- a terminal device can refer to an access terminal, user equipment (User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
- the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Processing (PDA), and wireless communication.
- terminal devices 120 may perform terminal direct device (D2D) communication.
- D2D terminal direct device
- the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.
- NR New Radio
- FIG. 3 exemplarily shows one network device and two terminal devices.
- the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
- the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.
- network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.
- the device having a communication function in the network / system in the embodiments of the present application may be referred to as a communication device.
- the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be specific devices described above, and will not be repeated here.
- the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobile management entity, and the like, which is not limited in the embodiments of the present application.
- An embodiment of the present invention provides an optional processing flow for a random access method applied to a terminal device. As shown in FIG. 4, it includes the following steps:
- Step S301 The terminal device determines a first PRACH resource set and a second PRACH resource set.
- the first PRACH resource set is used for PRACH transmission in the first type of random access process
- the second PRACH resource set is used for PRACH transmission in the second type of random access process
- the first type of random access corresponds to the random access method shown in FIG. 1 in the embodiment of the present invention.
- the PRACH transmission information in the first type of random access process includes a preamble
- the second type of random access process corresponds to this Embodiments of the Invention
- the random access method shown in FIG. 2 the PRACH transmission information in the second type of random access process includes a preamble and uplink information.
- the preamble is also referred to as a preamble sequence
- the preamble resource is also referred to as a preamble sequence resource or a sequence resource.
- the uplink information may include information used to distinguish terminal devices, such as a terminal device identifier, an RNTI, and the like.
- the RNTI may be selected by the terminal device from a RNTI set pre-configured by the network device for two-step RACH transmission.
- the uplink information may include information used to distinguish the terminal device and a category to which an event triggered by a physical random access channel (Physical Random Access Channel, PRACH) belongs.
- the events that trigger PRACH transmission can include the following: terminal equipment needs to perform initial access; or when the radio link fails, the terminal equipment needs to re-establish an RRC connection; or the terminal equipment is in the RRC connection state and needs to be served from the serving cell Switch to the target cell; or the terminal device is in the RRC connected state but uplink synchronization is not achieved, at this time the terminal device sends uplink data or receives downlink data; or the terminal device transitions from the RRC inactive state to the RRC connected state; and Or the terminal device is in the RRC connection state, and the positioning process needs to be performed, but the terminal device does not have a TA; or the terminal device requests an Open System Interconnection Reference Model (OSI); or the terminal device needs to perform beams (Beam ) Failed recovery.
- OSI Open System Interconnection Reference Model
- the terminal device may use multiple bits to indicate a category to which an event triggering PRACH transmission belongs. For example, you can use 3 bits to indicate the category to which the event that triggered the PRACH transmission belongs: "000” indicates that the terminal device needs initial access, "001” indicates that the terminal device needs to re-establish an RRC connection, and "010” indicates that the terminal device needs to perform a cell Switching, ..., "111” indicates that the terminal device needs to recover from Beam failure.
- the uplink information may include information used to distinguish the terminal device, the category to which the event triggering PRACH transmission belongs, and information that needs to be transmitted to complete this event.
- 3 bits "000" may be used to indicate that the terminal device needs initial access, and other bits may be used to indicate information that needs to be transmitted to complete the initial access, such as RRC RRC connection request generated by the layer.
- connection reestablishment 3 bits “001” may be used to indicate that the terminal device needs to re-establish an RRC connection.
- other bits may be used to indicate an RRC connection reestablishment request generated by the RRC layer.
- 3 bits “010” may be used to indicate that the terminal device needs to perform the cell switching, and other bits may also be used to indicate the RRC handover completion message generated by the RRC layer.
- the uplink information may further include, but is not limited to, a scheduling request (SR), a buffer status report (Buffer Status Report, BSR), and service data.
- SR scheduling request
- BSR buffer Status Report
- service data service data
- the starting position in the frequency domain is different.
- the preamble included in any one of the first PRACH resource sets is different from the preamble included in any one of the second PRACH resource sets.
- the first PRACH resource included in the first PRACH resource set and the second PRACH resource included in the second PRACH resource set including at least one of the following: the first PRACH resource
- the time domain start position of the second PRACH resource and the time domain start position of the second PRACH resource are at least one
- the frequency domain start position of the first PRACH resource and the frequency domain start position of the second PRACH resource are at least one
- there is a difference and there is at least one difference between a preamble included in the first PRACH resource set and a preamble included in the second PRACH resource set.
- an optional implementation manner of the terminal device determining the first PRACH resource set and the second PRACH resource set is: the terminal device determines the first PRACH resource set according to a first PRACH configuration parameter configured by a network device, and The second PRACH configuration parameter configured by the network device determines the second PRACH resource set.
- the first PRACH configuration parameter and the second PRACH configuration parameter are independently configured.
- the first PRACH configuration parameter and the second PRACH configuration parameter are random access parameters, and include at least one of the following: a PRACH configuration index, a number of PRACH frequency-domain opportunities, a PRACH time-domain opportunity starting position, PRACH frequency domain opportunity start position and sequence generation parameters.
- the PRACH configuration index is used to determine time-domain resources and repetition periods of PRACH; the number of PRACH frequency-domain opportunities is used to determine PRACH frequency-domain resources; and the sequence generation parameter is used to determine PRACH sequence resources.
- the first PRACH resource corresponds to a first repetition period length
- the second PRACH resource corresponds to a second repetition period length
- the first repetition period length is 10 slots
- the second The repetition period length is 5 slots
- the second repetition period length is shorter than the first repetition period length.
- the length of the repetition period of the first PRACH resource is the same as the length of the repetition period of the second PRACH resource; within one period, the number of the first PRACH resources is less than the number of the second PRACH resources.
- the length of the repetition period of the first PRACH resource and the length of the repetition period of the second PRACH resource are the same and are both 10 slots. In a period, that is, 10 slots, the The number of the first PRACH resources is one, which is less than the number of the second PRACH resources of two.
- the number of PRACH frequency-domain opportunities is divided into two groups according to the number of high-priority service terminal devices served by the cell, and the first group of frequency-domain opportunities is used in the first type of random access process.
- the second group of frequency-domain opportunities is used for the second type of random access process; and the frequency-domain start position of any one PRACH resource is different from the frequency-domain start position of any second PRACH resource.
- a service corresponding to a small cell or a service with a short response time such as a game is a high-priority service
- a connection service of a terminal device serving a suburban service far from a network device (such as a base station) is a low-priority service.
- the number of second-group frequency-domain opportunities may be set to be greater than the number of frequency-domain opportunities for the first group.
- the first group of frequency domain opportunities can be set to be larger than the second group of frequency domain opportunities.
- the sequence resource is divided into two sequence resource groups, where one sequence resource group belongs to the first PRACH resource set and is used for the first type of random access process; the other sequence resource group belongs to the second PRACH A collection of resources used for the second type of random access procedure.
- the second PRACH resource set includes at least two preamble sets and a time domain start position set of at least two PRACH resources, the at least two preamble sets and the at least two PRACHs.
- the time domain starting position set of the resource has a second association relationship.
- the first PRACH resource set includes at least two preamble sets and a time domain start position set of at least two PRACH resources, the at least two preamble sets and the time domain start of the at least two PRACH resources
- the location set has a first association relationship.
- the first PRACH resource set includes a first preamble set, a second preamble set, a first time domain start position set, and a second time domain start position set.
- the second PRACH resource set includes a third A preamble set, a fourth preamble set, the first time domain start position set, and the second time domain start position set, wherein the first PRACH resource set includes: from the first time domain A PRACH resource jointly determined by a start position set and the first preamble set, and a PRACH resource jointly determined by the second time domain start position set and the second preamble set; and / or, the second The PRACH resource set includes PRACH resources determined jointly by the first time domain start position set and the third preamble set, and the second time domain start position set and the fourth preamble set jointly determined PRACH resources; wherein the number of preambles included in the first preamble set is different from the number of preambles included in the second preamble set, and the number of preambles included in the third preamble set And the fourth Different set of preambles a preamble number included.
- the network device configures the sequence resources available to the cell as a first sequence resource group and a second sequence resource group, for example, the number of sequences of the first sequence resource group is greater than or equal to the second sequence The number of sequences in the resource group.
- the first sequence resource group is a preamble resource used for the first type of random access process on a first PRACH time domain resource
- the second sequence resource group is a first PRACH time domain resource.
- the network device configures sequence resources available to the cell as a third sequence resource group and a fourth sequence resource group, for example, the number of sequences of the third sequence resource group is less than the sequence of the fourth sequence resource group Number.
- the third sequence resource group is a preamble resource used for the first type of random access procedure on a second PRACH time domain resource
- the fourth sequence resource group is used for a second PRACH time domain resource.
- the first PRACH time domain resource and the second PRACH time domain resource are PRACH transmission opportunities in the time domain. Through this resource allocation method, each PRACH time domain transmission opportunity can have available PRACH resources for the first type of random access process and the second type of random access process, thereby minimizing the first type of random access. Delays in the access process and the second type of random access process.
- the random access process triggered by different service priorities can also be satisfied.
- the number of sequences that a cell can use for the first type of random access procedure and the second type of random access procedure is 40, and the corresponding labels are 0-39.
- the first sequence resource is The group includes the sequences corresponding to the numbers 0-19
- the second sequence resource group includes the sequences corresponding to the numbers 20-39
- the third sequence resource group includes the sequences corresponding to the numbers 0-9
- the fourth sequence resource group includes the corresponding numbers 10-39. sequence.
- the sequence corresponding to the numbers 0-19 is a preamble resource used for the first type of random access process on the first PRACH time domain resource
- the sequence corresponding to the number 20-39 is the first PRACH time domain resource.
- the preamble resource used for the second type of random access process, and the sequence corresponding to the numbers 0-9 is the preamble resource used for the first type of random access process on the second PRACH time domain resource, numbered 10-
- the corresponding sequence of 39 is a preamble resource for the second type of random access process on the second PRACH time domain resource.
- Step S302 The terminal device determines a target PRACH resource from the first PRACH resource set or the second PRACH resource set.
- the target PRACH resource is used for PRACH transmission in a random access process.
- the terminal device determines the target PRACH resource from the first PRACH resource set or the second PRACH resource set according to a priority of an event that triggers a random access process. For example, when the priority of an event that triggers a random access process is low, the terminal device determines the target PRACH resource from the first PRACH resource set; when the priority of an event that triggers a random access process is high When the terminal device determines the target PRACH resource from the second PRACH resource set.
- An embodiment of the present invention provides an optional processing flow for a random access method applied to a network device. As shown in FIG. 7, it includes the following steps:
- Step S401 The network device determines a first PRACH resource set and a second PRACH resource set.
- the process of determining the first PRACH resource set and the second PRACH resource set by the network device in the embodiment of the present invention is similar to that of the foregoing terminal device determining the first PRACH resource set and the second PRACH resource set, except that the execution subjects are different. Here, No longer.
- Step S402 The network device determines to perform the first type of random access procedure or the second type of random access procedure based on the received PRACH resource set to which the target PRACH resource belongs.
- the network device determines that the resource used for transmitting the PRACH belongs to the first PRACH resource set or the second PRACH resource set; when determining that the resource used for transmitting the PRACH belongs to the first PRACH resource set, all The network device performs the first type of random access procedure; when determining that the resource used to transmit the PRACH belongs to the second PRACH resource set, the network device performs the second type of random access procedure.
- the performing a first type of random access procedure by the network device includes: sending, by the network device, a random access response of the preamble to a terminal device.
- the performing, by the network device, a second type of random access procedure includes: the network device sends a random access response of the preamble and the uplink information to a terminal device.
- the network device performing the second type of random access procedure includes: the network device detects the preamble and does not detect the uplink information, and the network device sends the preamble to a terminal device Code random access response.
- the network device cannot determine that the first type of random access needs to be performed after receiving the preamble sent by the terminal device.
- the operation corresponding to the incoming process or the operation corresponding to the second type of random access process needs to be performed.
- the PRACH resource set is divided into a first PRACH resource set used for PRACH transmission in the first type of random access process and a second PRACH resource set used for PRACH transmission in the second type of random access process.
- the network device After receiving the Preamble, the network device can determine that the PRACH resource transmitting the Preamble belongs to the first PRACH resource set or the second PRACH resource set, and then determines that the random access process is a first type random access process or a second type.
- a random access process a network device can perform a corresponding operation (step S102 or step S202 in the above embodiment) according to the determined type of the random access process (the first type random access process or the second type random access process), Achieve fast random access.
- an embodiment of the present invention further provides a terminal device.
- the composition structure of the terminal device as shown in FIG. 8, includes:
- the first processing unit 501 is configured to determine a first PRACH resource set and a second PRACH resource set, where the first PRACH resource set is used for PRACH transmission in a first type random access process, and the second PRACH resource set is used for During the PRACH transmission in the second type of random access process, there is at least one difference between the first PRACH resource included in the first PRACH resource set and the second PRACH resource included in the second PRACH resource set;
- the first sending unit 502 is configured to determine a target PRACH resource from the first PRACH resource set or the second PRACH resource set, where the target PRACH resource is used for PRACH transmission in a random access process.
- the information transmitted by the PRACH during the first type of random access includes a preamble
- the information transmitted by the PRACH during the second type of random access includes a preamble and uplink information
- the frequency domain start position of the first PRACH resource and the At least one start position in the frequency domain is different, and at least one preamble included in the first PRACH resource set and at least one preamble included in the second PRACH resource set are different.
- the first processing unit 501 is configured to determine the first PRACH resource set according to a first PRACH configuration parameter, and determine the second PRACH resource set according to a second PRACH configuration parameter.
- the repetition period length of the first PRACH resource is the same as the repetition period length of the second PRACH resource; within a period, the number of the first PRACH resource is less than the second PRACH resource Number of.
- the first PRACH resource corresponds to a first repetition period length
- the second PRACH resource corresponds to a second repetition period length
- the second repetition period length is less than the first repetition period length.
- the frequency domain start position of the first PRACH resource and the frequency domain start position of the second PRACH resource are different.
- the preamble included in the first PRACH resource set is different from the preamble included in the second PRACH resource set.
- the second PRACH resource set includes at least two preamble sets and a time domain start position set of at least two PRACH resources, the at least two preamble sets and the at least two PRACHs.
- the time domain starting position set of the resource has a second association relationship.
- the first PRACH resource set includes at least two preamble sets and a time domain start position set of at least two PRACH resources, the at least two preamble sets and the time domain start of the at least two PRACH resources
- the location set has a first association relationship.
- the first PRACH resource set includes a first preamble set, a second preamble set, a first time domain start position set, and a second time domain start position set
- the second PRACH The resource set includes a third preamble set, a fourth preamble set, the first time domain start position set, and the second time domain start position set, wherein:
- the first PRACH resource set includes a PRACH resource jointly determined by the first time domain start position set and the first preamble set, and the second time domain start position set and the second preamble.
- a set of jointly determined PRACH resources; and / or, the second PRACH resource set includes a PRACH resource jointly determined by the first time domain start position set and the third preamble set, and the second time domain PRACH resources jointly determined by a start position set and the fourth preamble set; wherein the number of preambles included in the first preamble set is different from the number of preambles included in the second preamble set The number of preambles included in the third preamble set is different from the number of preambles included in the fourth preamble set.
- the sum of the number of preambles included in the first preamble set and the number of preambles included in the third preamble set and the preamble included in the second preamble set The number of is equal to the sum of the number of preambles included in the fourth preamble set.
- the first sending unit 502 is configured to determine the target PRACH from a source set or the second PRACH resource set Resources.
- the first sending unit 502 is configured to determine the target PRACH resource from the first PRACH resource set when the priority of an event that triggers a random access process is low; when the random access is triggered, When the priority of the event of the incoming process is high, the target PRACH resource is determined from the second PRACH resource set.
- an embodiment of the present invention provides a network device.
- the composition structure of the network device as shown in FIG. 9, includes:
- a second processing unit 503 is configured to determine a first PRACH resource set and a second PRACH resource set, where the first PRACH resource set is used for PRACH transmission in a first type random access process, and the second PRACH resource set is used for During the PRACH transmission in the second type of random access process, there is at least one difference between the first PRACH resource included in the first PRACH resource set and the second PRACH resource included in the second PRACH resource set;
- the second sending unit 504 is configured to determine, based on the PRACH resource set to which the received target PRACH resource belongs, to perform the first type of random access procedure or the second type of random access procedure.
- the terminal device shown in FIG. 8 for descriptions of the first PRACH resource set, the second PRACH resource set, the first type of random access process, and the second type of random access process, refer to the terminal device shown in FIG. 8 for the first Description of the PRACH resource set, the second PRACH resource set, the first type of random access procedure, the second type of random access procedure, or the related description in the random access method applied to the network device shown in FIG. 7.
- FIG. 10 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
- the communication device 600 shown in FIG. 10 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
- the communication device 600 may further include a memory 620.
- the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
- the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
- the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may send information or data to other devices, or receive other Information or data sent by the device.
- the transceiver 630 may include a transmitter and a receiver.
- the transceiver 630 may further include antennas, and the number of antennas may be one or more.
- the communication device 600 may specifically be the network device in the embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method in the embodiment of the present application. .
- the communication device 600 may specifically be a mobile terminal / terminal device according to the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the mobile terminal / terminal device in each method of the embodiment of the present application, for simplicity , Will not repeat them here.
- FIG. 11 is a schematic structural diagram of a chip according to an embodiment of the present application.
- the chip 700 shown in FIG. 11 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.
- the chip 700 may further include a memory 720.
- the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
- the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
- the chip 700 may further include an input interface 730.
- the processor 710 may control the input interface 730 to communicate with other devices or chips. Specifically, the processor 710 may obtain information or data sent by the other devices or chips.
- the chip 700 may further include an output interface 740.
- the processor 710 may control the output interface 740 to communicate with other devices or chips. Specifically, the processor 710 may output information or data to the other devices or chips.
- the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding process implemented by the mobile terminal / terminal device in each method of the embodiments of the present application. For simplicity, here No longer.
- the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip.
- FIG. 12 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 12, the communication system 900 includes a terminal device 910 and a network device 920.
- the terminal device 910 may be used to implement the corresponding functions implemented by the terminal device in the foregoing method
- the network device 920 may be used to implement the corresponding functions implemented by the network device in the foregoing method.
- details are not described herein again. .
- the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability.
- each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software.
- the above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field, Programmable Gate Array, FPGA), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA off-the-shelf programmable gate array
- Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
- the steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor.
- the software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
- the storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the foregoing method in combination with its hardware.
- the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
- the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
- RAM Static Random Access Memory
- DRAM Dynamic Random Access Memory
- Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
- SDRAM double data rate synchronous dynamic random access memory
- Double SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
- Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
- Synchronous DRAM Synchronous Dynamic Random Access Memory
- Enhanced SDRAM Enhanced SDRAM, ESDRAM
- synchronous connection dynamic random access memory Synchrobus RAM, SLDRAM
- Direct Rambus RAM Direct Rambus RAM
- the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct RAMbus RAM, DR RAM) and so on. That is, the memories in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.
- An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.
- the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application. For simplicity, here No longer.
- the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For simplicity, here No longer.
- An embodiment of the present application further provides a computer program product, including computer program instructions.
- the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instruction causes the computer to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. More details.
- the computer program product can be applied to a mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute a corresponding process implemented by the terminal device in each method in the embodiments of the present application.
- the computer program instructions cause a computer to execute a corresponding process implemented by the terminal device in each method in the embodiments of the present application.
- I will not repeat them here.
- the embodiment of the present application also provides a computer program.
- the computer program may be applied to a network device in the embodiment of the present application.
- the computer program When the computer program is run on a computer, the computer is caused to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. , Will not repeat them here.
- the computer program may be applied to a terminal device in the embodiment of the present application.
- the computer program When the computer program is run on a computer, the computer is caused to execute a corresponding process implemented by the terminal device in each method in the embodiment of the present application. , Will not repeat them here.
- the disclosed systems, devices, and methods may be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the unit is only a logical function division.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
- the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes .
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Abstract
Description
Claims (64)
- 一种随机接入方法,包括:终端设备确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合,所述第一PRACH资源集合用于第一类随机接入过程中的PRACH发送,所述第二PRACH资源集合用于第二类随机接入过程中的PRACH发送,所述第一PRACH资源集合中包括的第一PRACH资源和所述第二PRACH资源集合中包括的第二PRACH资源至少有一个不同;所述终端设备从所述第一PRACH资源集合或所述第二PRACH资源集合中确定目标PRACH资源,所述目标PRACH资源用于随机接入过程中的PRACH发送。
- 根据权利要求1所述的方法,其中,所述第一类随机接入过程中的PRACH传输的信息包括前导码,所述第二类随机接入过程中的PRACH传输的信息包括前导码和上行信息。
- 根据权利要求1或2所述的方法,其中,所述第一PRACH资源集合中包括的第一PRACH资源和所述第二PRACH资源集合中包括的第二PRACH资源至少有一个不同,包括以下情况中的至少一种:所述第一PRACH资源的时域起始位置和所述第二PRACH资源的时域起始位置至少有一个不同;所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置至少有一个不同;所述第一PRACH资源集合中包括的前导码和所述第二PRACH资源集合中包括的前导码至少有一个不同。
- 根据权利要求1至3中任一项所述的方法,其中,终端设备确定第一PRACH资源集合和第二PRACH资源集合,包括:所述终端设备根据第一PRACH配置参数确定所述第一PRACH资源集合,根据第二PRACH配置参数确定所述第二PRACH资源集合。
- 根据权利要求1至4中任一项所述的方法,其中,所述第一PRACH资源的重复周期长度和所述第二PRACH资源的重复周期长度相同;在一个周期内,所述第一PRACH资源的个数小于所述第二PRACH资源的个数。
- 根据权利要求1至4中任一项所述的方法,其中,所述第一PRACH资源对应 第一重复周期长度,所述第二PRACH资源对应第二重复周期长度,所述第二重复周期长度小于所述第一重复周期长度。
- 根据权利要求1至6中任一项所述的方法,其中,任意一个所述第一PRACH资源的频域起始位置和任意一个所述第二PRACH资源的频域起始位置不同。
- 根据权利要求1至7中任一项所述的方法,其中,任意一个所述第一PRACH资源集合中包括的前导码和任意一个所述第二PRACH资源集合中包括的前导码不同。
- 根据权利要求1至8中任一项所述的方法,其中,所述第二PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第二关联关系。
- 根据权利要求1至9中任一项所述的方法,其中,所述第一PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第一关联关系。
- 根据权利要求1至10中任一项所述的方法,其中,所述第一PRACH资源集合中包括第一前导码集合、第二前导码集合、第一时域起始位置集合和第二时域起始位置集合,所述第二PRACH资源集合中包括第三前导码集合、第四前导码集合、所述第一时域起始位置集合和所述第二时域起始位置集合,其中,所述第一PRACH资源集合包括所述第一时域起始位置集合和所述第一前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第二前导码集合联合确定的PRACH资源;和/或,所述第二PRACH资源集合包括所述第一时域起始位置集合和所述第三前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第四前导码集合联合确定的PRACH资源;其中,所述第一前导码集合包括的前导码的个数和所述第二前导码集合包括的前导码的个数不同,所述第三前导码集合包括的前导码的个数和所述第四前导码集合包括的前导码的个数不同。
- 根据权利要求11所述的方法,其中,所述第一前导码集合包括的前导码的个数与所述第三前导码集合包括的前导码的个数之和,与所述第二前导码集合包括的前导码的个数与所述第四前导码集合包括的前导码的个数之和相等。
- 根据权利要求1至12中任一项所述的方法,其中,所述终端设备从所述第一PRACH资源集合或所述第二PRACH资源集合中确定目标PRACH资源,包括:所述终端设备根据触发随机接入过程的事件的优先级,从所述第一PRACH资源集合或所述第二PRACH资源集合中确定所述目标PRACH资源。
- 根据权利要求13所述的方法,其中,所述终端设备从所述第一PRACH资源集合或所述第二PRACH资源集合中确定目标PRACH资源,包括:当触发随机接入过程的事件的优先级低时,所述终端设备从所述第一PRACH资源集合中确定所述目标PRACH资源;当触发随机接入过程的事件的优先级高时,所述终端设备从所述第二PRACH资源集合中确定所述目标PRACH资源。
- 一种随机接入方法,所述方法包括:网络设备确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合,所述第一PRACH资源集合用于第一类随机接入过程中的PRACH发送,所述第二PRACH资源集合用于第二类随机接入过程中的PRACH发送,所述第一PRACH资源集合中包括的第一PRACH资源和所述第二PRACH资源集合中包括的第二PRACH资源至少有一个不同;所述网络设备基于接收到的目标PRACH资源所属的PRACH资源集合,确定执行第一类随机接入过程或执行第二类随机接入过程。
- 根据权利要求15所述的方法,其中,所述网络设备确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合,包括:所述网络设备根据随机接入参数确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合;所述随机接入参数包括以下至少一种:PRACH配置索引、PRACH频域机会个数和序列生成参数。
- 根据权利要求15或16所述的方法,其中,所述第一PRACH资源和所述第二PRACH资源至少有一个不同,包括以下情况中的至少一种:所述第一PRACH资源的时域起始位置和所述第二PRACH资源的时域起始位置至少有一个不同;所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置至少有一个不同;所述第一PRACH资源集合中包括的前导码和所述第二PRACH资源集合中包括的前导码至少有一个不同。
- 根据权利要求15至17任一项所述的方法,其中,所述网络设备确定第一PRACH资源集合和第二PRACH资源集合,包括:所述网络设备分别配置第一随机接入参数和第二随机接入参数;根据所述第一随机接入参数确定所述第一PRACH资源集合,根据所述第二随机接入参数确定所述第二PRACH资源集合;所述第一PRACH资源集合包括:第一时域资源、第一频域资源和第一序列资源;所述第二PRACH资源集合包括:第二时域资源、第二频域资源和第二序列资源。
- 根据权利要求18所述的方法,其中,所述网络设备,包括:所述网络设备配置对应于第一PRACH资源集合的第一PRACH配置索引和对应于第二PRACH资源集合的第二PRACH配置索引;所述第二PRACH资源对应的第二重复周期长度,小于所述第一PRACH资源对应的第一重复周期长度。
- 根据权利要求18所述的方法,其中,所述网络设备分别配置第一随机接入参数和第二随机接入参数,包括:所述网络设备配置对应于第一PRACH资源集合的第一PRACH配置索引和对应于第二PRACH资源集合的第二PRACH配置索引;所述第二PRACH资源对应的重复周期长度,与所述第一PRACH资源对应的重复周期长度相同;在一个周期内,所述第一PRACH资源的个数小于所述第二PRACH资源的个数。
- 根据权利要求18至20任一项所述的方法,其中,所述网络设备分别配置第一随机接入参数和第二随机接入参数,包括:所述网络设备配置对应于第一PRACH资源集合的第一PRACH频域机会个数和对应于第二PRACH资源集合的第二PRACH频域机会个数,以使所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置不同。
- 根据权利要求18至21任一项所述的方法,其中,所述网络设备分别配置第一随机接入参数和第二随机接入参数,包括:所述网络设备将小区可用的序列资源配置为第一前导码集合和第二前导码集合;任意一个所述第一PRACH资源集合中包括的前导码和任意一个所述第二PRACH资源集合中包括的前导码不同。
- 根据权利要求15至22任一项所述的方法,其中,所述第二PRACH资源集合 中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第二关联关系。
- 根据权利要求15至23任一项所述的方法,其中,所述第一PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第一关联关系。
- 根据权利要求15至24任一项所述的方法,其中,所述第一PRACH资源集合中包括第一前导码集合、第二前导码集合、第一时域起始位置集合和第二时域起始位置集合,所述第二PRACH资源集合中包括第三前导码集合、第四前导码集合、所述第一时域起始位置集合和所述第二时域起始位置集合,其中,所述第一PRACH资源集合包括所述第一时域起始位置集合和所述第一前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第二前导码集合联合确定的PRACH资源;和/或,所述第二PRACH资源集合包括所述第一时域起始位置集合和所述第三前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第四前导码集合联合确定的PRACH资源;其中,所述第一前导码集合包括的前导码的个数和所述第二前导码集合包括的前导码的个数不同,所述第三前导码集合包括的前导码的个数和所述第四前导码集合包括的前导码的个数不同。
- 根据权利要求25所述的方法,其中,所述第一前导码集合包括的前导码的个数与所述第三前导码集合包括的前导码的个数之和,与所述第二前导码集合包括的前导码的个数与所述第四前导码集合包括的前导码的个数之和相等。
- 根据权利要求15至26任一项所述的方法,其中,所述网络设备基于接收到的PRACH确定执行第一类随机接入过程或执行第二类随机接入过程,包括:所述网络设备判断传输所述PRACH所使用的资源属于第一PRACH资源集合或属于第二PRACH资源集合;在判断传输所述PRACH所使用的资源属于第一PRACH资源集合时,所述网络设备执行第一类随机接入过程;在判断传输所述PRACH所使用的资源属于第二PRACH资源集合时,所述网络设备执行第二类随机接入过程。
- 一种终端设备,所述终端设备包括:第一处理单元,配置为确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合,所述第一PRACH资源集合用于第一类随机接入过程中的PRACH发送,所述第二PRACH资源集合用于第二类随机接入过程中的PRACH发送,所述第一PRACH资源集合中包括的第一PRACH资源和所述第二PRACH资源集合中包括的第二PRACH资源至少有一个不同;第一发送单元,配置为从所述第一PRACH资源集合或所述第二PRACH资源集合中确定目标PRACH资源,所述目标PRACH资源用于随机接入过程中的PRACH发送。
- 根据权利要求28所述的终端设备,其中,所述第一类随机接入过程中的PRACH传输的信息包括前导码,所述第二类随机接入过程中的PRACH传输的信息包括前导码和上行信息。
- 根据权利要求28或29所述的终端设备,其中,所述第一PRACH资源集合中包括的PRACH资源和所述第二PRACH资源集合中包括的PRACH资源至少有一个不同,包括以下情况中的至少一种:所述第一PRACH资源的时域起始位置和所述第二PRACH资源的时域起始位置至少有一个不同;所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置至少有一个不同;所述第一PRACH资源集合中包括的前导码和所述第二PRACH资源集合中包括的前导码至少有一个不同。
- 根据权利要求28至30任一项所述的终端设备,其中,所述第一处理单元,配置为根据第一PRACH配置参数确定所述第一PRACH资源集合,根据第二PRACH配置参数确定所述第二PRACH资源集合。
- 根据权利要求28至31任一项所述的终端设备,其中,所述第一PRACH资源的重复周期长度和所述第二PRACH资源的重复周期长度相同;在一个周期内,所述第一PRACH资源的个数小于所述第二PRACH资源的个数。
- 根据权利要求28至31任一项所述的终端设备,其中,所述第一PRACH资源对应第一重复周期长度,所述第二PRACH资源对应第二重复周期长度,所述第二重复周期长度小于所述第一重复周期长度。
- 根据权利要求28至33任一项所述的终端设备,其中,所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置不同。
- 根据权利要求28至34任一项所述的终端设备,其中,所述第一PRACH资源集合中包括的前导码和所述第二PRACH资源集合中包括的前导码不同。
- 根据权利要求28至35任一项所述的终端设备,其中,所述第二PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第二关联关系。
- 根据权利要求28至36任一项所述的终端设备,其中,所述第一PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第一关联关系。
- 根据权利要求28至37任一项所述的终端设备,其中,所述第一PRACH资源集合中包括第一前导码集合、第二前导码集合、第一时域起始位置集合和第二时域起始位置集合,所述第二PRACH资源集合中包括第三前导码集合、第四前导码集合、所述第一时域起始位置集合和所述第二时域起始位置集合,其中,所述第一PRACH资源集合包括所述第一时域起始位置集合和所述第一前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第二前导码集合联合确定的PRACH资源;和/或,所述第二PRACH资源集合包括所述第一时域起始位置集合和所述第三前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第四前导码集合联合确定的PRACH资源;其中,所述第一前导码集合包括的前导码的个数和所述第二前导码集合包括的前导码的个数不同,所述第三前导码集合包括的前导码的个数和所述第四前导码集合包括的前导码的个数不同。
- 根据权利要求38所述的终端设备,其中,所述第一前导码集合包括的前导码的个数与所述第三前导码集合包括的前导码的个数之和,与所述第二前导码集合包括的前导码的个数与所述第四前导码集合包括的前导码的个数之和相等。
- 根据权利要求28至39任一项所述的终端设备,其中,所述第一发送单元,用于根据触发随机接入过程的事件的优先级,从所述第一PRACH资源集合或所述第二PRACH资源集合中确定所述目标PRACH资源。
- 根据权利要求40所述的终端设备,其中,所述第一发送单元,用于当触发随机接入过程的事件的优先级低时,从所述第一PRACH资源集合中确定所述目标PRACH资源;当触发随机接入过程的事件的优先级高时,从所述第二PRACH资源集合中确定所述目标PRACH资源。
- 一种网络设备,所述网络设备包括:第二处理单元,配置为确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合,所述第一PRACH资源集合用于第一类随机接入过程中的PRACH发送,所述第二PRACH资源集合用于第二类随机接入过程中的PRACH发送,所述第一PRACH资源集合中包括的第一PRACH资源和所述第二PRACH资源集合中包括的第二PRACH资源至少有一个不同;第二发送单元,配置为基于接收到的目标PRACH资源所属的PRACH资源集合,确定执行第一类随机接入过程或执行第二类随机接入过程。
- 根据权利要求42所述的网络设备,其中,所述第二处理单元,配置为根据PRACH配置参数确定第一物理随机接入信道PRACH资源集合和第二PRACH资源集合;所述PRACH配置参数包括以下至少一种:PRACH配置索引、PRACH频域机会个数和序列生成参数。
- 根据权利要求42或43所述的网络设备,其中,所述第一PRACH资源和所述第二PRACH资源至少有一个不同,包括以下情况中的至少一种:所述第一PRACH资源的时域起始位置和所述第二PRACH资源的时域起始位置至少有一个不同;所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置至少有一个不同;所述第一PRACH资源集合中包括的前导码和所述第二PRACH资源集合中包括的前导码至少有一个不同。
- 根据权利要求42至44任一项所述的网络设备,其中,所述第二处理单元,配置为分别配置第一随机接入参数和第二随机接入参数;根据所述第一随机接入参数确定所述第一PRACH资源集合,根据所述第二随机接入参数确定所述第二PRACH资源集合;所述第一PRACH资源集合包括:第一时域资源、第一频域资源和第一序列资源;所述第二PRACH资源集合包括:第二时域资源、第二频域资源和第二序列资源。
- 根据权利要求45所述的网络设备,其中,所述第二处理单元,用于配置对应于第一PRACH资源集合的第一PRACH配置索引和对应于第二PRACH资源集合的第 二PRACH配置索引;所述第二PRACH资源对应的第二重复周期长度,小于所述第一PRACH资源对应的第一重复周期长度。
- 根据权利要求45所述的网络设备,其中,所述第二处理单元,配置为对应于第一PRACH资源集合的第一PRACH配置索引和对应于第二PRACH资源集合的第二PRACH配置索引;所述第二PRACH资源对应的重复周期长度,与所述第一PRACH资源对应的重复周期长度相同;在一个周期内,所述第一PRACH资源的个数小于所述第二PRACH资源的个数。
- 根据权利要求45至47任一项所述的网络设备,其中,所述第二处理单元,配置为配置对应于第一PRACH资源集合的第一PRACH频域机会个数和对应于第二PRACH资源集合的第二PRACH频域机会个数,以使所述第一PRACH资源的频域起始位置和所述第二PRACH资源的频域起始位置不同。
- 根据权利要求45至48任一项所述的网络设备,其中,所述第二处理单元,配置为将小区可用的序列资源配置为第一前导码集合和第二前导码集合,任意一个所述第一PRACH资源集合中包括的前导码和任意一个所述第二PRACH资源集合中包括的前导码不同。
- 根据权利要求42至49任一项所述的网络设备,其中,所述第二PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第二关联关系。
- 根据权利要求42至50任一项所述的网络设备,其中,所述第一PRACH资源集合中包括至少两个前导码集合和至少两个PRACH资源的时域起始位置集合,所述至少两个前导码集合和所述至少两个PRACH资源的时域起始位置集合有第一关联关系。
- 根据权利要求42至51任一项所述的网络设备,其中,所述第一PRACH资源集合中包括第一前导码集合、第二前导码集合、第一时域起始位置集合和第二时域起始位置集合,所述第二PRACH资源集合中包括第三前导码集合、第四前导码集合、所述第一时域起始位置集合和所述第二时域起始位置集合,其中,所述第一PRACH资源集合包括所述第一时域起始位置集合和所述第一前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第二前导码集合联合确定的PRACH资源;和/或,所述第二PRACH资源集合包括所述第一时域起始位置集合和所述第三前导码集合联合确定的PRACH资源,以及所述第二时域起始位置集合和所述第四前导码集合联合确定的PRACH资源;其中,所述第一前导码集合包括的前导码的个数和所述第二前导码集合包括的前导码的个数不同,所述第三前导码集合包括的前导码的个数和所述第四前导码集合包括的前导码的个数不同。
- 根据权利要求52所述的网络设备,其中,所述第一前导码集合包括的前导码的个数与所述第三前导码集合包括的前导码的个数之和,与所述第二前导码集合包括的前导码的个数与所述第四前导码集合包括的前导码的个数之和相等。
- 根据权利要求43至53任一项所述的网络设备,其中,所述第二发送单元,配置为判断传输所述PRACH所使用的资源属于第一PRACH资源集合或属于第二PRACH资源集合;在判断传输所述PRACH所使用的资源属于第一PRACH资源集合时,所述网络设备执行第一类随机接入过程;在判断传输所述PRACH所使用的资源属于第二PRACH资源集合时,所述网络设备执行第二类随机接入过程。
- 一种终端设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至14中任一项所述的随机接入方法。
- 一种网络设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求15至27中任一项所述的随机接入方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至14中任一项所述的随机接入方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求15至27中任一项所述的随机接入方法。
- 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至14中任一项所述的随机接入方法。
- 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求15至27中任一项所述的随机接入方法。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至14中任一项所述的随机接入方法。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求15至27中任一项所述的随机接入方法。
- 一种计算机程序,所述计算机程序使得计算机执行如权利要求1至14中任一项所述的随机接入方法。
- 一种计算机程序,所述计算机程序使得计算机执行如权利要求15至27中任一项所述的随机接入方法。
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AU2019310936B2 (en) | 2023-12-21 |
CN112514514A (zh) | 2021-03-16 |
JP7301949B2 (ja) | 2023-07-03 |
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US11825519B2 (en) | 2023-11-21 |
US20240032113A1 (en) | 2024-01-25 |
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