WO2020061945A1 - Method used for random access, network device, and terminal device - Google Patents

Method used for random access, network device, and terminal device Download PDF

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Publication number
WO2020061945A1
WO2020061945A1 PCT/CN2018/108079 CN2018108079W WO2020061945A1 WO 2020061945 A1 WO2020061945 A1 WO 2020061945A1 CN 2018108079 W CN2018108079 W CN 2018108079W WO 2020061945 A1 WO2020061945 A1 WO 2020061945A1
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WO
WIPO (PCT)
Prior art keywords
pusch
random access
resource
terminal device
sending
Prior art date
Application number
PCT/CN2018/108079
Other languages
French (fr)
Chinese (zh)
Inventor
贺传峰
徐伟杰
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2018/108079 priority Critical patent/WO2020061945A1/en
Priority to CN201880089633.0A priority patent/CN111727656B/en
Priority to TW108134949A priority patent/TW202025839A/en
Publication of WO2020061945A1 publication Critical patent/WO2020061945A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Definitions

  • a terminal device can send a random access preamble and a Physical Uplink Shared Channel (PUSCH) to a network device.
  • the PUSCH carries the identification information of the terminal device, and then the terminal device can detect the physical downlink control channel (PDCCH), and obtain the random carried in the physical uplink shared channel (Physical Uplink shared channel, PDSCH) scheduled by the network device.
  • An access response message in which a Random Access Temporary Wireless Network Temporary Identifier (Random Access-Radio Network Temporary Identity, RA-RNTI) that scrambles the PDCCH is generated according to the location of the resource that sent the Preamble.
  • RA-RNTI Random Access-Radio Network Temporary Identity
  • the terminal device cannot determine which terminal device the received random access response message corresponds to. Therefore, how can the terminal device correctly receive the preamble corresponding to the terminal device? The random access response message is an issue worth studying.
  • the embodiments of the present application provide a method, a network device, and a terminal device for random access, which are beneficial to correctly receive a random access response message corresponding to a Preamble sent by the terminal device.
  • a method for random access including: a network device generating a first random access wireless network temporary identifier RA-RNTI according to detected resource information of a physical uplink shared channel PUSCH; said The network device uses the first RA-RNTI to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule a random access response message in a first random access process.
  • a terminal device is provided to execute the foregoing second aspect or the method in any possible implementation manner of the second aspect.
  • the terminal device includes a unit for performing the foregoing second aspect or the method in any possible implementation manner of the second aspect.
  • a network device includes: a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the method in the above-mentioned first aspect or its implementations.
  • a terminal device includes a processor and a memory.
  • the memory is used to store a computer program, and 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 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 the method in any one of the first to second aspects described above or in various implementations thereof.
  • a computer program that, when run on a computer, causes the computer to execute the method in any one of the first to second aspects described above or in its implementations.
  • the network device may use the resource information of the PUSCH to generate an RA-RNTI, and further use the RA-RNTI to scramble the PDCCH.
  • the terminal device uses different PUSCH resources to send the PUSCH, different RA-RNTIs are generated. Therefore, the terminal device can correctly receive the random access response message corresponding to the Preamble sent by the terminal device.
  • FIG. 4 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a chip according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • 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
  • 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. 1 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 terminal device sends a random access preamble sequence (MSG1) to the network device.
  • MSG1 random access preamble sequence
  • the network device sends a random access response (RAR) to the terminal device after detecting the Preamble sent by the terminal device to inform the terminal device of the uplink resource information that can be used when sending MSG3.
  • RAR random access response
  • RNTI Radio Network Temporary Identity
  • the terminal device performs transmission of MSG3 according to the uplink resource indicated by the RAR.
  • the RA-RNTI used by the network device when sending the RAR is calculated according to the position of the time-frequency resources of the PRACH.
  • the PDSCH scheduled by one RA-RNTI scrambled PDCCH may include responses to multiple preambles.
  • the terminal device After receiving the RAR, the terminal device sends an MSG3 message in the uplink resource designated by the RAR.
  • the contention-based random access process may also adopt a two-step random access process, specifically:
  • the terminal device sends Preamble and PUSCH to the network device, where Preamble and PUSCH are respectively equivalent to MSG1 and MSG3 in the four-step random access process.
  • the Preamble and PUSCH have a corresponding relationship.
  • the network device may configure the Preamble resource and the PUSCH resource, and the corresponding relationship between the Preamble resource and the PUSCH resource.
  • the Preamble resource and the PUSCH resource may be one-to-one.
  • One-to-many, many-to-one correspondence taking one-to-many as an example, one Preamble resource can correspond to multiple PUSCH resources, and different terminal devices can select the same Preamble resource and different PUSCH resources to send in the first step.
  • Information is an example.
  • the network device sends a random access response message to the terminal device after detecting the access preamble sequence sent by the terminal device.
  • the random access response message is a response message of the Preamble and PUSCH in the first step.
  • the random access response message may include the content of the second step and the fourth step in the four-step random access.
  • the random access response message may include a RAR and a contention resolution message.
  • the delay of the above-mentioned four-step random access process is large, and generally cannot meet the requirements of low-latency and high-reliability scenarios in the NR system, and the random access method based on the two-step random access process can reduce Random access delay is conducive to meeting the demand for delay.
  • an embodiment of the present application provides a random access method.
  • a network device may generate an RA-RNTI according to resource information of a PUSCH, and further may use the RA-RNTI to scramble a PDCCH for scheduling a random access response message. It is beneficial to distinguish the terminal device corresponding to the random access response from the network device.
  • the network device generates a first random access wireless network temporary identifier RA-RNTI according to the detected resource information of the physical uplink shared channel PUSCH.
  • the network device uses the first RA-RNTI to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule randomness in a first random access process. Access response message.
  • the random access response message may be an RAR in a four-step random access process, that is, MSG2; or, the random access response message may be the two-step random access described above.
  • Random access response message in the process.
  • the random access response message includes some or all of the information of MSG 2 and MSG 4 in the existing four-step random access process, for example, the random access response message. Including at least one of the following: an identification ID of the random access preamble sent by the terminal device, resources allocated by the network device for the terminal device for uplink transmission, a contention resolution message, and a timing advance TA information.
  • the network device can detect the PUSCH sent by the terminal device. If the network device detects the first PUSCH, it can determine the resource information related to the first PUSCH, and the network device can determine the resource related to the first PUSCH. Information to generate an RA-RNTI for scrambling the PDCCH. Further, the RA-RNTI can be used to scramble a cyclic redundancy check (Cyclic Redundancy Check, CRC) of the PDCCH for scheduling a random access response message.
  • CRC Cyclic Redundancy Check
  • the terminal device can determine the RA-RNTI that scrambles the PDCCH according to the resource information of the transmitted PUSCH. Further, the terminal device can detect the PDCCH according to the RA-RNTI, which is beneficial to correctly receive the random access corresponding to the preamble sent by the terminal device Response message.
  • the RA-RNTI is generated based on the information of the Preamble resource and the PUSCH resource. In this way, if the terminal device uses the same Preamble resource and different PUSCH resources, the RA-RNTI generated due to the different PDSCH resources It is also different, or if the terminal equipment uses different Preamble resources and the same PUSCH resource, the RA-RNTI generated is different due to the different Preamble resources, which is beneficial to the terminal equipment to correctly receive the random access response sent by the network equipment Message.
  • the resource information of the PUSCH is resource information related to the PUSCH.
  • the resource information of the PUSCH may include at least one of the following:
  • each PUSCH resource that can be used to send a PUSCH may correspond to a starting time domain position and a frequency domain position.
  • the above information 5 may indicate the total number of starting time domain positions of all PUSCH resources.
  • the total number of possible starting time-domain positions of the target PUSCH resource may also be considered, and the above information 6 may indicate the total number of frequency-domain positions of all PUSCH resources, or the possible frequency domain of the target PUSCH resource may also be considered The total number of locations.
  • the resource information of the PUSCH may also include information of a starting time domain location and / or a frequency domain location of each PUSCH resource that can be used to send the PUSCH.
  • the starting time domain position information of the target PUSCH resource may be an index of the starting time domain position of the target PUSCH resource
  • the frequency domain position information of the target PUSCH may be the PUSCH resource.
  • the starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the starting slot The position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
  • the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  • the total number of start time domain positions of the PUSCH resources that can be used to send the PUSCH may include the total number of start symbol positions (denoted as symbol_num) and start time slots of the PUSCH resources used to send the PUSCH.
  • the total number of positions (denoted as slot_num). If the total number of frequency-domain positions of the PUSCH resources available for sending the PUSCH is recorded as freq_num, the index of the frequency-domain position of the target PUSCH resource is recorded as freq_ID, and the target PUSCH resource is recorded.
  • the resource index is recorded as PUSCH_ID, and the total number of PUSCH resources available for sending the PUSCH is recorded as PUSCH_num, then the starting symbol position (symbol_index) and starting slot position (O_slot_index) of the target PUSCH resource satisfy the following relationship: 0 ⁇ symbol_index ⁇ symbol_num, 0slot_index ⁇ slot_num, 0 ⁇ freq_ID ⁇ freq_num, 0 ⁇ PUSCH_ID ⁇ PUSCH_num.
  • the generating, by the network device according to the resource information of the physical uplink shared channel PUSCH sent by the terminal device, the first random access wireless network temporary identifier RA-RNTI includes:
  • the ul_carrier_id is used to indicate an index of an uplink carrier used by the terminal device to send a random access preamble.
  • RA-RNTI 1 + PUSCH_id + 10 ⁇ symbol_index + 10 ⁇ 14 ⁇ slot_index + 10 ⁇ 14 ⁇ 80 ⁇ freq_ID + 10 ⁇ 14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_i;
  • the network device can generate RA-RNTI according to the resource information of the PUSCH, which is beneficial for generating different RA-RNTI when the terminal device uses different PUSCH resources, so that the terminal device
  • the PDCCH can be detected according to the RA-RNTI, which is beneficial for correctly receiving a random access response message belonging to itself.
  • the method for random access according to the embodiment of the present application is described in detail from the perspective of a network device with reference to FIG. 2 above.
  • the method for random access according to another embodiment of the application is described in detail from the perspective of a terminal device with reference to FIG. 3 below. Random access method. It should be understood that the description on the terminal device side and the description on the network device side correspond to each other. Similar descriptions can be referred to above. To avoid repetition, details are not repeated here.
  • FIG. 3 is a schematic flowchart of a method 300 for random access according to another embodiment of the present application.
  • the method 300 may be executed by a network device in the communication system shown in FIG. 1. As shown in FIG. 3, the method 300
  • the method 300 includes the following:
  • the terminal device determines the first random access wireless network temporary identifier RA-RNTI according to the resource information of the first physical uplink shared channel PUSCH.
  • the terminal device detects a first physical downlink control channel PDCCH according to the first RA-RNTI.
  • the first RA-RNTI is used by the network device to scramble the cyclic redundancy of the first PDCCH. Check CRC.
  • the resource information of the PUSCH includes at least one of the following:
  • the total number of PUSCH resources available for sending the PUSCH is the total number of PUSCH resources available for sending the PUSCH
  • the first starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, where the starting time The slot position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
  • the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  • the method 300 further includes:
  • the terminal device Receiving, by the terminal device, a physical downlink shared channel PDSCH sent by the network device, the PDSCH is scheduled by the first PDCCH, and the PDSCH includes a random access response message in a first random access process.
  • the first random access procedure includes a first step and a second step
  • the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  • the random access response message includes at least one of the following:
  • An identification ID of the random access preamble sent by the terminal device includes identification ID of the random access preamble, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
  • a generating module 410 configured to generate a first random access radio network temporary identifier RA-RNTI according to the detected resource information of the physical uplink shared channel PUSCH;
  • a scrambling module 420 is configured to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH using the first RA-RNTI, where the first PDCCH is used to schedule a first random access procedure. Random access response message.
  • the resource information of the PUSCH includes at least one of the following: a PUSCH resource identification ID used for sending the PUSCH;
  • the total number of PUSCH resources available for sending the PUSCH is the total number of PUSCH resources available for sending the PUSCH
  • the total number of frequency domain positions of PUSCH resources available for sending the PUSCH is the total number of frequency domain positions of PUSCH resources available for sending the PUSCH.
  • the starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the starting slot The position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
  • the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  • the first random access procedure includes a first step and a second step
  • the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship.
  • the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  • the random access response message includes at least one of the following: an identification ID of the random access preamble sent by the terminal device, and the network device is the terminal device Assigned resources for uplink transmission, contention resolution messages, and timing advance TA information.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 500 in FIG. 5 includes:
  • the resource information of the PUSCH includes at least one of the following:
  • the total number of PUSCH resources available for sending the PUSCH is the total number of PUSCH resources available for sending the PUSCH
  • the first starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, where the starting time The slot position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
  • the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  • the communication module 520 is further configured to:
  • the first random access procedure includes a first step and a second step
  • the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship.
  • the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  • the random access response message includes at least one of the following:
  • An identification ID of the random access preamble sent by the terminal device includes identification ID of the random access preamble, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
  • FIG. 6 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. 6 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 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 a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not described herein again. .
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 7 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.
  • FIG. 8 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 8, 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 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.
  • 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 can 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. No longer.
  • the computer-readable storage medium may be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program causes the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application.
  • the computer program causes the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application.
  • An embodiment of the present application further provides a computer program product, including computer program instructions.
  • 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 the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiments of the present application, For brevity, I will not repeat them here.
  • 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 mobile terminal / terminal device in the embodiment of the present application.
  • the computer program When the computer program is run on a computer, the computer executes each method in the embodiment of the application by the mobile terminal / terminal device. The corresponding processes are not repeated here for brevity.
  • 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 .

Abstract

A method used for random access, a network device, and a terminal device, the method comprising: according to detected resource information of a physical uplink shared channel (PUSCH), a network device generating a first random access radio network temporary identifier (RA-RNTI); and the network device using the first RA-RNTI to scramble a cyclic redundancy check (CDC) of a first physical downlink control channel (PDCCH), the first PDCCH being used for scheduling a random access response message during a first random access process.

Description

用于随机接入的方法、网络设备和终端设备Method, network equipment and terminal equipment for random access 技术领域Technical field
本申请实施例涉及通信领域,具体涉及一种用于随机接入的方法、网络设备和终端设备。Embodiments of the present application relate to the field of communications, and in particular, to a method for random access, a network device, and a terminal device.
背景技术Background technique
在新无线(New Radio,NR)***中,在随机接入过程中,终端设备可以向网络设备发送随机接入前导(Preamble)和物理上行共享信道(Physical Uplink Shared Channel,PUSCH),其中,该PUSCH携带终端设备的标识信息,然后终端设备可以检测物理下行控制信道(Physical Downlink Control Channel,PDCCH),获取网络设备在该PDCCH调度的物理上行共享信道(Physical Uplink Shared Channel,PDSCH)中承载的随机接入响应消息,其中,加扰该PDCCH的随机接入临时无线网络临时标识符(Random Access-Radio Network Temporary Identity,RA-RNTI)是根据发送Preamble的资源位置生成的。In a new wireless (New Radio, NR) system, during a random access process, a terminal device can send a random access preamble and a Physical Uplink Shared Channel (PUSCH) to a network device. The PUSCH carries the identification information of the terminal device, and then the terminal device can detect the physical downlink control channel (PDCCH), and obtain the random carried in the physical uplink shared channel (Physical Uplink shared channel, PDSCH) scheduled by the network device. An access response message, in which a Random Access Temporary Wireless Network Temporary Identifier (Random Access-Radio Network Temporary Identity, RA-RNTI) that scrambles the PDCCH is generated according to the location of the resource that sent the Preamble.
但是,由于不同的终端设备可以使用相同的Preamble资源发送Preamble,导致终端设备无法确定接收到的随机接入响应消息对应哪个终端设备,因此,如何使得终端设备正确接收该终端设备所发送的Preamble对应的随机接入响应消息是一项值得研究的问题。However, because different terminal devices can use the same Preamble resource to send Preamble, the terminal device cannot determine which terminal device the received random access response message corresponds to. Therefore, how can the terminal device correctly receive the preamble corresponding to the terminal device? The random access response message is an issue worth studying.
发明内容Summary of the Invention
本申请实施例提供一种用于随机接入的方法、网络设备和终端设备,有利于正确接收该终端设备发送的Preamble对应的随机接入响应消息。The embodiments of the present application provide a method, a network device, and a terminal device for random access, which are beneficial to correctly receive a random access response message corresponding to a Preamble sent by the terminal device.
第一方面,提供了一种用于随机接入的方法,包括:网络设备根据检测到的物理上行共享信道PUSCH的资源信息,生成第一随机接入无线网络临时标识符RA-RNTI;所述网络设备使用所述第一RA-RNTI加扰第一物理下行控制信道PDCCH的循环冗余校验CRC,其中,所述第一PDCCH用于调度第一随机接入过程中的随机接入响应消息。According to a first aspect, a method for random access is provided, including: a network device generating a first random access wireless network temporary identifier RA-RNTI according to detected resource information of a physical uplink shared channel PUSCH; said The network device uses the first RA-RNTI to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule a random access response message in a first random access process. .
第二方面,提供了一种用于随机接入的方法,包括:终端设备根据发送第一物理上行共享信道PUSCH的资源信息,确定第一随机接入无线网络临时标识符RA-RNTI;In a second aspect, a method for random access is provided, including: determining, by a terminal device, a first random access wireless network temporary identifier RA-RNTI according to resource information of a first physical uplink shared channel PUSCH;
所述终端设备根据所述第一RA-RNTI检测第一物理下行控制信道PDCCH,其中,所述第一RA-RNTI用于所述网络设备加扰所述第一PDCCH的循环冗余校验CRC。Detecting, by the terminal device, a first physical downlink control channel PDCCH according to the first RA-RNTI, wherein the first RA-RNTI is used by the network device to scramble a cyclic redundancy check CRC of the first PDCCH .
第三方面,提供了一种网络设备,用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地,该网络设备包括用于执行上述第一方面或第一方面的任一可能的实现方式中的方法的单元。According to a third aspect, a network device is provided for performing the foregoing first aspect or the method in any possible implementation manner of the first aspect. Specifically, the network device includes a unit for performing the foregoing first aspect or the method in any possible implementation manner of the first aspect.
第四方面,提供了一种终端设备,用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地,该终端设备包括用于执行上述第二方面或第二方面的任一可能的实现方式中的方法的单元。According to a fourth aspect, a terminal device is provided to execute the foregoing second aspect or the method in any possible implementation manner of the second aspect. Specifically, the terminal device includes a unit for performing the foregoing second aspect or the method in any possible implementation manner of the second aspect.
第五方面,提供了一种网络设备,该网络设备包括:包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面或其各实现方式中的方法。According to a fifth aspect, a network device is provided. The network device includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the method in the above-mentioned first aspect or its implementations.
第六方面,提供了一种终端设备,该终端设备包括:包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面或其各实现方式中的方法。According to a sixth aspect, a terminal device is provided. The terminal device includes a processor and a memory. The memory is used to store a computer program, and 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.
第七方面,提供了一种芯片,用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a seventh aspect, a chip is provided for implementing any one of the first to second aspects or a method in each implementation thereof.
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。Specifically, 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.
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。According to an eighth aspect, a computer-readable storage medium is provided 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.
第九方面,提供了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上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a ninth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute the method in any one of the first to second aspects described above or in various implementations thereof.
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to execute the method in any one of the first to second aspects described above or in its implementations.
基于上述技术方案,该网络设备可以使用PUSCH的资源信息生成RA-RNTI,进一步使用该RA-RNTI加扰PDCCH,这样,在终端设备使用不同的PUSCH资源发送PUSCH时,产生不同的RA-RNTI,从而使得终端设备可以正确接收该终端设备发送的Preamble对应的随机接入响应消息。Based on the above technical solution, the network device may use the resource information of the PUSCH to generate an RA-RNTI, and further use the RA-RNTI to scramble the PDCCH. In this way, when the terminal device uses different PUSCH resources to send the PUSCH, different RA-RNTIs are generated. Therefore, the terminal device can correctly receive the random access response message corresponding to the Preamble sent by the terminal device.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本申请实施例提供的一种应用场景的示意性图。FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
图2是本申请实施例提供的一种用于随机接入的方法的示意性图。FIG. 2 is a schematic diagram of a method for random access according to an embodiment of the present application.
图3是本申请另一实施例提供的一种用于随机接入的方法的示意性图。FIG. 3 is a schematic diagram of a method for random access according to another embodiment of the present application.
图4是本申请实施例提供的一种网络设备的示意性框图。FIG. 4 is a schematic block diagram of a network device according to an embodiment of the present application.
图5是本申请实施例提供的一种终端设备的示意性框图。FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
图6是本申请实施例提供的一种通信设备的示意性框图。FIG. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.
图7是本申请实施例提供的一种芯片的示意性框图。FIG. 7 is a schematic block diagram of a chip according to an embodiment of the present application.
图8是本申请实施例提供的一种通信***的示意性框图。FIG. 8 is a schematic block diagram of a communication system according to an embodiment of the present application.
具体实施方式detailed description
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、LTE频分双工(Frequency Division Duplex,FDD)***、LTE时分双工(Time Division Duplex,TDD)、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信***或5G***等。The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a Global System for Mobile (GSM) system, a Code Division Multiple Access (CDMA) system, and a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access) 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 system, etc.
示例性的,本申请实施例应用的通信***100如图1所示。该通信***100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。可选地,该网络设备110可以是GSM***或CDMA***中的基站(Base Transceiver Station,BTS),也可以是WCDMA***中的基站(NodeB,NB),还可以是LTE***中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. 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. Optionally, 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. (Evolutional NodeB, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or 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.
该通信***100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为 在此使用的“终端设备”包括但不限于经由有线线路连接,如经由公共交换电话网络(Public Switched Telephone Networks,PSTN)、数字用户线路(Digital Subscriber Line,DSL)、数字电缆、直接电缆连接;和/或另一数据连接/网络;和/或经由无线接口,如,针对蜂窝网络、无线局域网(Wireless Local Area Network,WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器;和/或另一终端设备的被设置成接收/发送通信信号的装置;和/或物联网(Internet of Things,IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话;可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信***(Personal Communications System,PCS)终端;可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位***(Global Positioning System,GPS)接收器的PDA;以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。The communication system 100 further includes at least one terminal device 120 located within a coverage area of the network device 110. As the "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. 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”. Examples of 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. 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. Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved PLMNs, etc.
可选地,终端设备120之间可以进行终端直连(Device to Device,D2D)通信。Optionally, terminal devices 120 may perform terminal direct device (D2D) communication.
可选地,5G***或5G网络还可以称为新无线(New Radio,NR)***或NR网络。Optionally, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信***100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, 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.
可选地,该通信***100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。Optionally, 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.
应理解,本申请实施例中网络/***中具有通信功能的设备可称为通信设备。以图1示出的通信***100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信***100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。It should be understood that 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. Taking the communication system 100 shown in FIG. 1 as an example, 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 are not described herein again 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.
应理解,本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”, 仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" in this document is only an association relationship describing related objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and exists alone B these three cases. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.
可选地,在NR***中,基于竞争的随机接入过程可以采用了四步随机接入过程,具体地:Optionally, in the NR system, a contention-based random access process may adopt a four-step random access process, specifically:
在第一步骤中,终端设备向网络设备发送随机接入前导序列(Preamble),即MSG1。In the first step, the terminal device sends a random access preamble sequence (MSG1) to the network device.
在第二步骤中,网络设备检测到有终端设备发送的Preamble之后向终端设备发送随机接入响应(random access response,RAR)以告知终端设备在发送MSG3时可以使用的上行资源信息,为终端设备分配临时无线网络临时标识符(Radio Network Temporary Identity,RNTI),给终端设备提供定时提前命令(time advance command)等,如果终端设备在RAR时间窗内没有检测到RAR,终端设备进行Preamble的重传,如果终端设备在RAR时间窗内检测到RAR,并且该RAR中的Preamble索引和该终端设备发送的Preamble索引***,该终端设备可以确定成功接收到RAR,从而可以停止监听RAR。进一步地,该终端设备根据RAR指示的上行资源进行MSG3的传输。其中,网络设备在发送RAR时使用的RA-RNTI是根据PRACH的时频资源的位置计算的,一个RA-RNTI扰码的PDCCH调度的PDSCH中可以包括对于多个Preamble的响应。In the second step, the network device sends a random access response (RAR) to the terminal device after detecting the Preamble sent by the terminal device to inform the terminal device of the uplink resource information that can be used when sending MSG3. Assign a temporary wireless network temporary identifier (Radio Network Temporary Identity, RNTI), provide the terminal device with a timing advance command (time advance command), etc., if the terminal device does not detect the RAR within the RAR time window, the terminal device retransmits the preamble If the terminal device detects the RAR within the RAR time window, and the Preamble index in the RAR and the Preamble index system sent by the terminal device, the terminal device can determine that the RAR was successfully received, and thus can stop monitoring the RAR. Further, the terminal device performs transmission of MSG3 according to the uplink resource indicated by the RAR. The RA-RNTI used by the network device when sending the RAR is calculated according to the position of the time-frequency resources of the PRACH. The PDSCH scheduled by one RA-RNTI scrambled PDCCH may include responses to multiple preambles.
在第三步骤中,终端设备接收到RAR之后,在RAR所指定的上行资源中发送MSG3消息。In the third step, after receiving the RAR, the terminal device sends an MSG3 message in the uplink resource designated by the RAR.
在第四步骤中,网络设备向终端设备发送MSG4消息,其中包括竞争解决消息,同时为终端设备分配上行传输资源。终端设备接收到网络设备发送的MSG 4时,会检测MSG 4中是否包括终端设备发送的MSG3消息中的部分内容。若包括则表明终端设备随机接入过程成功,否则认为随机过程失败,终端设备需要再次从第一步骤开始发起随机接入过程。In a fourth step, the network device sends an MSG4 message to the terminal device, which includes a contention resolution message, and at the same time allocates uplink transmission resources to the terminal device. When the terminal device receives the MSG4 sent by the network device, it will detect whether the MSG4 includes part of the MSG3 message sent by the terminal device. If it is included, it indicates that the random access process of the terminal device is successful; otherwise, the random process is considered to have failed, and the terminal device needs to initiate the random access process from the first step again.
可选地,在NR***中,基于竞争的随机接入过程也可以采用两步随机接入过程,具体地:Optionally, in the NR system, the contention-based random access process may also adopt a two-step random access process, specifically:
在第一步骤中,终端设备向网络设备发送Preamble和PUSCH,其中,Preamble和PUSCH分别相当于四步随机接入过程中的MSG1和MSG3。In the first step, the terminal device sends Preamble and PUSCH to the network device, where Preamble and PUSCH are respectively equivalent to MSG1 and MSG3 in the four-step random access process.
其中,该Preamble和PUSCH具有对应关系,具体地,网络设备可以配置Preamble资源和PUSCH资源,以及Preamble资源和PUSCH资源之间的对应关系,可选地,Preamble资源和PUSCH资源可以是一对一,一对多,多对一等的对应关系,以一对多为例,一个Preamble资源可以对应多个PUSCH资源,不同的终端设备可以选择相同的Preamble资 源和不同的PUSCH资源发送该第一步骤中的信息。The Preamble and PUSCH have a corresponding relationship. Specifically, the network device may configure the Preamble resource and the PUSCH resource, and the corresponding relationship between the Preamble resource and the PUSCH resource. Optionally, the Preamble resource and the PUSCH resource may be one-to-one. One-to-many, many-to-one correspondence, taking one-to-many as an example, one Preamble resource can correspond to multiple PUSCH resources, and different terminal devices can select the same Preamble resource and different PUSCH resources to send in the first step. Information.
在第二步骤中,网络设备检测到有终端设备发送的接入前导序列之后向终端设备发送随机接入响应消息,该随机接入响应消息为第一步骤中的Preamble和PUSCH的响应消息,该随机接入响应消息可以包括四步随机接入中的第二步骤和第四步骤的内容,具体地,该随机接入响应消息可以包括RAR和竞争解决消息。In the second step, the network device sends a random access response message to the terminal device after detecting the access preamble sequence sent by the terminal device. The random access response message is a response message of the Preamble and PUSCH in the first step. The random access response message may include the content of the second step and the fourth step in the four-step random access. Specifically, the random access response message may include a RAR and a contention resolution message.
应理解,上述四步随机接入过程的时延较大,通常无法满足NR***中低时延高可靠性场景的需求,而基于两步随机接入过程的随机接入的方法,可以减小随机接入时延,有利于满足对时延的需求。It should be understood that the delay of the above-mentioned four-step random access process is large, and generally cannot meet the requirements of low-latency and high-reliability scenarios in the NR system, and the random access method based on the two-step random access process can reduce Random access delay is conducive to meeting the demand for delay.
如上文所述,一个RAR消息中可以包括多个发送Preamble的用户的响应,对每个用户的响应消息中可以包括该用户采用的随机接入前导标识(Random Access Preamble Identify,RAPID),上行资源分配消息和定时提前命令等信息,终端设备根据RA-RNTI确定接收的RAR是否是发送给自身的,RA-RNTI是根据Preamble资源的位置信息生成的,但是,不同的终端设备可以选择相同的Preamble资源和不同的PUSCH资源发送该第一步骤中的信息,因此,对于终端设备而言,仍然无法区分使用接收的RAR属于哪个终端设备。As described above, one RAR message may include the responses of multiple users who sent the Preamble. The response message for each user may include the Random Access Preamble Identify (RAPID) used by the user, and uplink resources. Allocate information such as messages and timing advance commands. The terminal device determines whether the received RAR is sent to itself according to the RA-RNTI. The RA-RNTI is generated based on the location information of the Preamble resource. However, different terminal devices can choose the same Preamble. Resources and different PUSCH resources send the information in this first step, so it is still impossible for the terminal device to distinguish which terminal device the received RAR belongs to.
有鉴于此,本申请实施例提供了一种随机接入的方法,网络设备可以根据PUSCH的资源信息,生成RA-RNTI,进一步可以使用该RA-RNTI加扰调度随机接入响应消息的PDCCH,有利于区分网络设备回复的随机接入响应对应的终端设备。In view of this, an embodiment of the present application provides a random access method. A network device may generate an RA-RNTI according to resource information of a PUSCH, and further may use the RA-RNTI to scramble a PDCCH for scheduling a random access response message. It is beneficial to distinguish the terminal device corresponding to the random access response from the network device.
图2为本申请实施例提供的一种用于随机接入的方法的示意性流程图。FIG. 2 is a schematic flowchart of a method for random access according to an embodiment of the present application.
S210,网络设备根据检测到的物理上行共享信道PUSCH的资源信息,生成第一随机接入无线网络临时标识符RA-RNTI;S210. The network device generates a first random access wireless network temporary identifier RA-RNTI according to the detected resource information of the physical uplink shared channel PUSCH.
S220,所述网络设备使用所述第一RA-RNTI加扰第一物理下行控制信道PDCCH的循环冗余校验CRC,其中,所述第一PDCCH用于调度第一随机接入过程中的随机接入响应消息。S220. The network device uses the first RA-RNTI to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule randomness in a first random access process. Access response message.
可选地,在本申请实施例中,该第一随机接入过程可以为前文所述的两步随机接入过程,或者也可以为四步的随机接入过程,本申请实施例对此不作限定。Optionally, in the embodiment of the present application, the first random access process may be the two-step random access process described above, or may be a four-step random access process, which is not described in this embodiment of the present application. limited.
可选地,在本申请实施例中,随机接入响应消息可以为四步随机接入过程中的RAR,即MSG2;或者,该随机接入响应消息可以为前文所述的两步随机接入过程中的随机接入响应消息,此情况下,该随机接入响应消息包括现有的四步随机接入过程中的MSG 2和MSG 4的部分或全部信息,例如,该随机接入响应消息包括以下中的至少一项:所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于 上行传输的资源、竞争解决消息和时间提前量TA信息。Optionally, in the embodiment of the present application, the random access response message may be an RAR in a four-step random access process, that is, MSG2; or, the random access response message may be the two-step random access described above. Random access response message in the process. In this case, the random access response message includes some or all of the information of MSG 2 and MSG 4 in the existing four-step random access process, for example, the random access response message. Including at least one of the following: an identification ID of the random access preamble sent by the terminal device, resources allocated by the network device for the terminal device for uplink transmission, a contention resolution message, and a timing advance TA information.
在本申请实施例中,网络设备可以检测终端设备发送的PUSCH,若该网络设备检测到第一PUSCH,可以确定该第一PUSCH相关的资源信息,该网络设备可以根据该第一PUSCH相关的资源信息,生成用于加扰PDCCH的RA-RNTI,进一步地,可以使用该RA-RNTI加扰用于调度随机接入响应消息的PDCCH的循环冗余校验(Cyclic Redundancy Check,CRC)。In the embodiment of the present application, the network device can detect the PUSCH sent by the terminal device. If the network device detects the first PUSCH, it can determine the resource information related to the first PUSCH, and the network device can determine the resource related to the first PUSCH. Information to generate an RA-RNTI for scrambling the PDCCH. Further, the RA-RNTI can be used to scramble a cyclic redundancy check (Cyclic Redundancy Check, CRC) of the PDCCH for scheduling a random access response message.
对应地,终端设备可以根据发送PUSCH的资源信息,确定加扰该PDCCH的RA-RNTI,进一步地,可以根据该RA-RNTI检测PDCCH,有利于正确接收该终端设备发送的Preamble对应的随机接入响应消息。Correspondingly, the terminal device can determine the RA-RNTI that scrambles the PDCCH according to the resource information of the transmitted PUSCH. Further, the terminal device can detect the PDCCH according to the RA-RNTI, which is beneficial to correctly receive the random access corresponding to the preamble sent by the terminal device Response message.
在本申请实施例中,该RA-RNTI是根据PUSCH的资源信息生成的,即使终端设备使用相同的Preamble资源,由于其使用了不同的PUSCH资源,则对应的RA-RNTI也是不同的,有利于区分随机接入响应消息来自哪个终端设备,从而能够使得终端设备能够正确接收该终端设备所发送的Preamble对应的随机接入响应消息。In the embodiment of the present application, the RA-RNTI is generated based on the resource information of the PUSCH. Even if the terminal device uses the same Preamble resource, the corresponding RA-RNTI is different because it uses different PUSCH resources, which is beneficial Differentiate which terminal device the random access response message comes from, so that the terminal device can correctly receive the random access response message corresponding to the Preamble sent by the terminal device.
作为一具体实施例,该RA-RNTI是根据Preamble资源和PUSCH资源的信息生成的,这样,若终端设备使用相同的Preamble资源和不同的PUSCH资源,由于PDSCH资源的不同,所生成的RA-RNTI也是不同的,或者,若终端设备使用不同的Preamble资源和相同的PUSCH资源,由于Preamble资源的不同,所生成的RA-RNTI也是不同的,有利于终端设备正确接收网络设备发送的随机接入响应消息。As a specific embodiment, the RA-RNTI is generated based on the information of the Preamble resource and the PUSCH resource. In this way, if the terminal device uses the same Preamble resource and different PUSCH resources, the RA-RNTI generated due to the different PDSCH resources It is also different, or if the terminal equipment uses different Preamble resources and the same PUSCH resource, the RA-RNTI generated is different due to the different Preamble resources, which is beneficial to the terminal equipment to correctly receive the random access response sent by the network equipment Message.
作为另一具体实施例,该RA-RNTI是根据Preamble资源、PUSCH资源和上行载波的信息生成的,其中,该上行载波为终端设备发送Preamble和PUSCH所使用的上行载波。可选地,该上行载波的信息可以为上行载波的编号,例如若该编号为0可以表示正常的上行载波(Normal Uplink carrier,NUL carrier),该编号为1表示单上行载波(Single Uplink carrier,SUL carrier)。As another specific embodiment, the RA-RNTI is generated according to the information of the Preamble resource, the PUSCH resource, and the uplink carrier, where the uplink carrier is an uplink carrier used by the terminal device to send the Preamble and the PUSCH. Optionally, the information of the uplink carrier may be the number of the uplink carrier. For example, if the number is 0, it may indicate a normal uplink carrier (NUL carrier), and the number 1 indicates a single uplink carrier (Single Uplink carrier, SUL carrier).
可选地,在本申请实施例中,该PUSCH的资源信息为与该PUSCH的相关的资源信息,作为示例而非限定,该PUSCH的资源信息可以包括以下中的至少一项:Optionally, in the embodiment of the present application, the resource information of the PUSCH is resource information related to the PUSCH. As an example and not limitation, the resource information of the PUSCH may include at least one of the following:
1、发送所述PUSCH所使用的PUSCH资源标识ID;1. Send a PUSCH resource identifier ID used by the PUSCH;
2、可用于发送所述PUSCH的PUSCH资源的总数量;2. The total number of PUSCH resources available for sending the PUSCH;
3、发送所述PUSCH所使用的目标PUSCH资源的起始时域位置信息;3. Send the starting time domain location information of the target PUSCH resource used by the PUSCH;
4、发送所述PUSCH所使用的目标PUSCH资源的频域位置信息;4. Send the frequency domain position information of the target PUSCH resource used by the PUSCH;
5、可用于发送所述PUSCH的PUSCH资源的起始时域位置的总数量;5. The total number of starting time domain positions of PUSCH resources available for sending the PUSCH;
6、可用于发送所述PUSCH的PUSCH资源的频域位置的总数量。6. The total number of frequency domain positions of PUSCH resources available for sending the PUSCH.
应理解,在本申请实施例中,每个可用于发送PUSCH的PUSCH资源可以对应一个起始时域位置和频域位置,上述信息5可以指示所有的PUSCH资源的起始时域位置的总数,或者也可以认为该目标PUSCH资源的可能存在的起始时域位置的总数,上述信息6可以指示所有的PUSCH资源的频域位置的总数,或者也可以认为该目标PUSCH资源的可能存在的频域位置的总数。It should be understood that, in the embodiments of the present application, each PUSCH resource that can be used to send a PUSCH may correspond to a starting time domain position and a frequency domain position. The above information 5 may indicate the total number of starting time domain positions of all PUSCH resources. Alternatively, the total number of possible starting time-domain positions of the target PUSCH resource may also be considered, and the above information 6 may indicate the total number of frequency-domain positions of all PUSCH resources, or the possible frequency domain of the target PUSCH resource may also be considered The total number of locations.
可选地,在一些实施例中,该PUSCH的资源信息也可以包括可用于发送所述PUSCH的多个PUSCH资源中的每个PUSCH资源的起始时域位置和/或频域位置的信息。Optionally, in some embodiments, the resource information of the PUSCH may also include information of a starting time domain location and / or a frequency domain location of each PUSCH resource that can be used to send the PUSCH.
可选地,在本申请实施例中,该目标PUSCH资源的起始时域位置信息可以为该目标PUSCH资源的起始时域位置的索引,该目标PUSCH的频域位置信息可以为该PUSCH资源的频域位置的索引。Optionally, in the embodiment of the present application, the starting time domain position information of the target PUSCH resource may be an index of the starting time domain position of the target PUSCH resource, and the frequency domain position information of the target PUSCH may be the PUSCH resource. The index of the frequency domain position.
可选地,在一些实施例中,所述目标PUSCH资源的起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。Optionally, in some embodiments, the starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the starting slot The position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
可选地,在一些实施例中,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。Optionally, in some embodiments, the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
具体地,该可用于发送所述PUSCH的PUSCH资源的起始时域位置的总数量,可以包括用于发送PUSCH的PUSCH资源的起始符号位置的总数量(记为symbol_num)和起始时隙位置的总数量(记为slot_num),若将可用于发送所述PUSCH的PUSCH资源的频域位置的总数量记为freq_num,该目标PUSCH资源的频域位置的索引记为freq_ID,将目标PUSCH资源的资源索引记为PUSCH_ID,将可用于发送所述PUSCH的PUSCH资源的总数量记为PUSCH_num,则该目标PUSCH资源的起始符号位置(symbol_index)和起始时隙位置(O_slot_index)满足如下关系:0≤symbol_index<symbol_num,0slot_index<slot_num,0≤freq_ID<freq_num,0≤PUSCH_ID<PUSCH_num。Specifically, the total number of start time domain positions of the PUSCH resources that can be used to send the PUSCH may include the total number of start symbol positions (denoted as symbol_num) and start time slots of the PUSCH resources used to send the PUSCH. The total number of positions (denoted as slot_num). If the total number of frequency-domain positions of the PUSCH resources available for sending the PUSCH is recorded as freq_num, the index of the frequency-domain position of the target PUSCH resource is recorded as freq_ID, and the target PUSCH resource is recorded. The resource index is recorded as PUSCH_ID, and the total number of PUSCH resources available for sending the PUSCH is recorded as PUSCH_num, then the starting symbol position (symbol_index) and starting slot position (O_slot_index) of the target PUSCH resource satisfy the following relationship: 0≤symbol_index <symbol_num, 0slot_index <slot_num, 0≤freq_ID <freq_num, 0≤PUSCH_ID <PUSCH_num.
可选地,在一些实施例中,所述网络设备根据终端设备发送物理上行共享信道PUSCH的资源信息,生成第一随机接入无线网络临时标识符RA-RNTI,包括:Optionally, in some embodiments, the generating, by the network device according to the resource information of the physical uplink shared channel PUSCH sent by the terminal device, the first random access wireless network temporary identifier RA-RNTI includes:
所述网络设备根据如下公式,生成所述第一RA-RNTI:The network device generates the first RA-RNTI according to the following formula:
RA-RNTI=1+PUSCH_ID+PUSCH_num×symbol_index+PUSCH_num×symbol_num×slot_index+PUSCH_number×symbol_number×slot_number×freq_ID+PUSCH_num×symbol_num×slot_num×freq_num×ul_carrier_id,RA-RNTI = 1 + PUSCH_ID + PUSCH_num × symbol_index + PUSCH_num × symbol_num × slot_index + PUSCH_number × symbol_number × slot_number × freq_ID + PUSCH_num × symbol_num × slot_num × freq_num × ul_carrier_id,
其中,所述ul_carrier_id用于指示所述终端设备发送随机接入前导所使用的上行载波 的索引。The ul_carrier_id is used to indicate an index of an uplink carrier used by the terminal device to send a random access preamble.
举例来说,若PUSCH_num=10,symbol_num=14,slot_num=80,freq_num=8,则上述公式可以转换为:For example, if PUSCH_num = 10, symbol_num = 14, slot_num = 80, and freq_num = 8, the above formula can be converted into:
RA-RNTI=1+PUSCH_id+10×symbol_index+10×14×slot_index+10×14×80×freq_ID+10×14×80×8×ul_carrier_i;RA-RNTI = 1 + PUSCH_id + 10 × symbol_index + 10 × 14 × slot_index + 10 × 14 × 80 × freq_ID + 10 × 14 × 80 × 8 × ul_carrier_i;
当然,上述PUSCH_num、symbol_num、slot_num=80、freq_num也取其他值,上述数值可以是由网络设备配置给终端设备的,或者也可以是协议约定的,或部分由网络设备配置,其他由协议约定,本申请实施例对此不作限定。Of course, the above PUSCH_num, symbol_num, slot_num = 80, and freq_num also take other values. The above values may be configured by the network device to the terminal device, or may be agreed by the protocol, or partly configured by the network device, and the others are agreed by the protocol. This embodiment of the present application does not limit this.
因此,本申请实施例的用于随机接入的方法,网络设备可以根据PUSCH的资源信息生成RA-RNTI,有利于实现在终端设备使用不同的PUSCH资源时生成不同的RA-RNTI,从而终端设备可以根据RA-RNTI检测PDCCH,有利于正确接收属于自身的随机接入响应消息。Therefore, in the method for random access in the embodiment of the present application, the network device can generate RA-RNTI according to the resource information of the PUSCH, which is beneficial for generating different RA-RNTI when the terminal device uses different PUSCH resources, so that the terminal device The PDCCH can be detected according to the RA-RNTI, which is beneficial for correctly receiving a random access response message belonging to itself.
上文结合图2,从网络设备的角度详细描述了根据本申请实施例的用于随机接入的方法,下文结合图3,从终端设备的角度详细描述根据本申请另一实施例的用于随机接入的方法。应理解,终端设备侧的描述与网络设备侧的描述相互对应,相似的描述可以参见上文,为避免重复,此处不再赘述。The method for random access according to the embodiment of the present application is described in detail from the perspective of a network device with reference to FIG. 2 above. The method for random access according to another embodiment of the application is described in detail from the perspective of a terminal device with reference to FIG. 3 below. Random access method. It should be understood that the description on the terminal device side and the description on the network device side correspond to each other. Similar descriptions can be referred to above. To avoid repetition, details are not repeated here.
图3是根据本申请另一实施例的用于随机接入的方法300的示意性流程图,该方法300可以由图1所示的通信***中的网络设备执行,如图3所示,该方法300包括如下内容:FIG. 3 is a schematic flowchart of a method 300 for random access according to another embodiment of the present application. The method 300 may be executed by a network device in the communication system shown in FIG. 1. As shown in FIG. 3, the method 300 The method 300 includes the following:
S310,终端设备根据发送第一物理上行共享信道PUSCH的资源信息,确定第一随机接入无线网络临时标识符RA-RNTI;S310. The terminal device determines the first random access wireless network temporary identifier RA-RNTI according to the resource information of the first physical uplink shared channel PUSCH.
S320,所述终端设备根据所述第一RA-RNTI检测第一物理下行控制信道PDCCH,其中,所述第一RA-RNTI用于所述网络设备加扰所述第一PDCCH的循环冗余校验CRC。S320. The terminal device detects a first physical downlink control channel PDCCH according to the first RA-RNTI. The first RA-RNTI is used by the network device to scramble the cyclic redundancy of the first PDCCH. Check CRC.
可选地,在一些实施例中,所述PUSCH的资源信息包括以下中的至少一项:Optionally, in some embodiments, the resource information of the PUSCH includes at least one of the following:
所述PUSCH所使用的PUSCH资源标识ID;A PUSCH resource identification ID used by the PUSCH;
可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
可用于发送所述PUSCH的PUSCH资源中所有的起始时域位置的总数量;The total number of all starting time domain positions in a PUSCH resource available for sending the PUSCH;
可用于发送所述PUSCH的PUSCH资源中所有的起始频域位置的总数量;The total number of all starting frequency domain positions in a PUSCH resource available for sending the PUSCH;
发送所述PUSCH所使用的目标PUSCH资源的第一起始时域位置信息;Sending the first starting time domain location information of the target PUSCH resource used by the PUSCH;
发送所述PUSCH所使用的目标PUSCH资源的频域位置信息;Sending frequency domain position information of a target PUSCH resource used by the PUSCH;
可选地,在一些实施例中,所述目标PUSCH资源的第一起始时域位置信息包括所述 目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。Optionally, in some embodiments, the first starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, where the starting time The slot position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
可选地,在一些实施例中,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。Optionally, in some embodiments, the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
可选地,在一些实施例中,所述方法300还包括:Optionally, in some embodiments, the method 300 further includes:
所述终端设备接收所述网络设备发送的物理下行共享信道PDSCH,所述PDSCH是由所述第一PDCCH调度的,所述PDSCH包括第一随机接入过程中的随机接入响应消息。Receiving, by the terminal device, a physical downlink shared channel PDSCH sent by the network device, the PDSCH is scheduled by the first PDCCH, and the PDSCH includes a random access response message in a first random access process.
可选地,在一些实施例中,所述第一随机接入过程包括第一步骤和第二步骤;Optionally, in some embodiments, the first random access procedure includes a first step and a second step;
在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
可选地,在一些实施例中,所述随机接入响应消息包括以下中的至少一项:Optionally, in some embodiments, the random access response message includes at least one of the following:
所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。An identification ID of the random access preamble sent by the terminal device, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
上文结合图2至图3,详细描述了本申请的方法实施例,下文结合图4至图7,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。The method embodiments of the present application are described in detail above with reference to FIGS. 2 to 3. The device embodiments of the present application are described in detail below with reference to FIGS. 4 to 7. It should be understood that the device embodiments and method embodiments correspond to each other, similarly. For description of the method, refer to the method embodiment.
图4示出了根据本申请实施例的网络设备400的示意性框图。如图4所示,该网络设备400包括:FIG. 4 shows a schematic block diagram of a network device 400 according to an embodiment of the present application. As shown in FIG. 4, the network device 400 includes:
生成模块410,用于根据检测到的物理上行共享信道PUSCH的资源信息,生成第一随机接入无线网络临时标识符RA-RNTI;A generating module 410, configured to generate a first random access radio network temporary identifier RA-RNTI according to the detected resource information of the physical uplink shared channel PUSCH;
加扰模块420,用于使用所述第一RA-RNTI加扰第一物理下行控制信道PDCCH的循环冗余校验CRC,其中,所述第一PDCCH用于调度第一随机接入过程中的随机接入响应消息。A scrambling module 420 is configured to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH using the first RA-RNTI, where the first PDCCH is used to schedule a first random access procedure. Random access response message.
可选地,在一些实施例中,所述PUSCH的资源信息包括以下中的至少一项:发送所述PUSCH所使用的PUSCH资源标识ID;Optionally, in some embodiments, the resource information of the PUSCH includes at least one of the following: a PUSCH resource identification ID used for sending the PUSCH;
可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
发送所述PUSCH所使用的目标PUSCH资源的起始时域位置信息;Sending the starting time domain location information of the target PUSCH resource used by the PUSCH;
发送所述PUSCH所使用的目标PUSCH资源的频域位置信息;Sending frequency domain position information of a target PUSCH resource used by the PUSCH;
可用于发送所述PUSCH的PUSCH资源的起始时域位置的总数量;The total number of starting time domain positions of PUSCH resources available for sending the PUSCH;
可用于发送所述PUSCH的PUSCH资源的频域位置的总数量。The total number of frequency domain positions of PUSCH resources available for sending the PUSCH.
可选地,在一些实施例中,所述目标PUSCH资源的起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。Optionally, in some embodiments, the starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the starting slot The position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
可选地,在一些实施例中,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。Optionally, in some embodiments, the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
可选地,在一些实施例中,所述第一随机接入过程包括第一步骤和第二步骤;Optionally, in some embodiments, the first random access procedure includes a first step and a second step;
在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
可选地,在一些实施例中,所述随机接入响应消息包括以下中的至少一项:所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。Optionally, in some embodiments, the random access response message includes at least one of the following: an identification ID of the random access preamble sent by the terminal device, and the network device is the terminal device Assigned resources for uplink transmission, contention resolution messages, and timing advance TA information.
图5是根据本申请实施例的终端设备的示意性框图。图5的终端设备500包括:FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application. The terminal device 500 in FIG. 5 includes:
确定模块510,用于根据发送第一物理上行共享信道PUSCH的资源信息,确定第一随机接入无线网络临时标识符RA-RNTI;A determining module 510, configured to determine a first random access radio network temporary identifier RA-RNTI according to the resource information of the first physical uplink shared channel PUSCH;
通信模块520,用于根据所述第一RA-RNTI检测第一物理下行控制信道PDCCH,其中,所述第一RA-RNTI用于所述网络设备加扰所述第一PDCCH的循环冗余校验CRC。The communication module 520 is configured to detect a first physical downlink control channel PDCCH according to the first RA-RNTI, where the first RA-RNTI is used by the network device to scramble the cyclic redundancy of the first PDCCH. Check CRC.
可选地,在一些实施例中,所述PUSCH的资源信息包括以下中的至少一项:Optionally, in some embodiments, the resource information of the PUSCH includes at least one of the following:
所述PUSCH所使用的PUSCH资源标识ID;A PUSCH resource identification ID used by the PUSCH;
可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
可用于发送所述PUSCH的PUSCH资源中所有的起始时域位置的总数量;The total number of all starting time domain positions in a PUSCH resource available for sending the PUSCH;
可用于发送所述PUSCH的PUSCH资源中所有的起始频域位置的总数量;The total number of all starting frequency domain positions in a PUSCH resource available for sending the PUSCH;
发送所述PUSCH所使用的目标PUSCH资源的第一起始时域位置信息;Sending the first starting time domain location information of the target PUSCH resource used by the PUSCH;
发送所述PUSCH所使用的目标PUSCH资源的频域位置信息;Sending frequency domain position information of a target PUSCH resource used by the PUSCH;
可选地,在一些实施例中,所述目标PUSCH资源的第一起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指 示所述目标PUSCH资源所在的起始符号的索引。Optionally, in some embodiments, the first starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, where the starting time The slot position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
可选地,在一些实施例中,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。Optionally, in some embodiments, the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
可选地,在一些实施例中,所述通信模块520还用于:Optionally, in some embodiments, the communication module 520 is further configured to:
接收所述网络设备发送的物理下行共享信道PDSCH,所述PDSCH是由所述第一PDCCH调度的,所述PDSCH包括第一随机接入过程中的随机接入响应消息。Receiving a physical downlink shared channel PDSCH sent by the network device, the PDSCH being scheduled by the first PDCCH, and the PDSCH including a random access response message in a first random access process.
可选地,在一些实施例中,所述第一随机接入过程包括第一步骤和第二步骤;Optionally, in some embodiments, the first random access procedure includes a first step and a second step;
在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
可选地,在一些实施例中,所述随机接入响应消息包括以下中的至少一项:Optionally, in some embodiments, the random access response message includes at least one of the following:
所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。An identification ID of the random access preamble sent by the terminal device, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
图6是本申请实施例提供的一种通信设备600示意性结构图。图6所示的通信设备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。FIG. 6 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. 6 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.
可选地,如图6所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。Optionally, as shown in FIG. 6, 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.
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
可选地,如图6所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。Optionally, as shown in FIG. 6, 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.
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。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.
可选地,该通信设备600具体可为本申请实施例的网络设备,并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。Optionally, the communication device 600 may specifically be a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not described herein again. .
可选地,该通信设备600具体可为本申请实施例的移动终端/终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为 了简洁,在此不再赘述。Optionally, 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.
图7是本申请实施例的芯片的示意性结构图。图7所示的芯片700包括处理器710,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 7 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.
可选地,如图7所示,芯片700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。Optionally, as shown in FIG. 7, 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.
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
可选地,该芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。Optionally, 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.
可选地,该芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。Optionally, 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.
可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。Optionally, 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. For brevity, details are not described herein again.
可选地,该芯片可应用于本申请实施例中的移动终端/终端设备,并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。Optionally, 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.
应理解,本申请实施例提到的芯片还可以称为***级芯片,***芯片,芯片***或片上***芯片等。It should be understood that 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.
图8是本申请实施例提供的一种通信***900的示意性框图。如图8所示,该通信***900包括终端设备910和网络设备920。FIG. 8 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 8, the communication system 900 includes a terminal device 910 and a network device 920.
其中,该终端设备910可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备920可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。The terminal device 910 may be used to implement the corresponding functions implemented by the terminal device in the foregoing method, and the network device 920 may be used to implement the corresponding functions implemented by the network device in the foregoing method. For brevity, details are not described herein again. .
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的 处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability. In the implementation process, 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. 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.
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that 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. Among them, 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. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, 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 (Synchlink DRAM, SLDRAM ) And direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should be understood that the foregoing memory is exemplary but not restrictive. For example, 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.
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer-readable storage medium can 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. No longer.
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并 且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer-readable storage medium may be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program causes the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, I won't repeat them here.
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。An embodiment of the present application further provides a computer program product, including computer program instructions.
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。Optionally, 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.
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。Optionally, 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 the computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method in the embodiments of the present application, For brevity, I will not repeat them here.
本申请实施例还提供了一种计算机程序。The embodiment of the present application also provides a computer program.
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer program may be applied to a network device in the embodiment of the present application. 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.
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer program may be applied to a mobile terminal / terminal device in the embodiment of the present application. When the computer program is run on a computer, the computer executes each method in the embodiment of the application by the mobile terminal / terminal device. The corresponding processes are not repeated here for brevity.
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, 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.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个 网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。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.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。In addition, 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.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。If 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. Based on this understanding, 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 .
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims (37)

  1. 一种用于随机接入的方法,其特征在于,包括:A method for random access, comprising:
    网络设备根据检测到的物理上行共享信道PUSCH的资源信息,生成第一随机接入无线网络临时标识符RA-RNTI;The network device generates a first random access wireless network temporary identifier RA-RNTI according to the detected resource information of the physical uplink shared channel PUSCH;
    所述网络设备使用所述第一RA-RNTI加扰第一物理下行控制信道PDCCH的循环冗余校验CRC,其中,所述第一PDCCH用于调度第一随机接入过程中的随机接入响应消息。The network device uses the first RA-RNTI to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule random access in a first random access process Response message.
  2. 根据权利要求1所述的方法,其特征在于,所述PUSCH的资源信息包括以下中的至少一项:The method according to claim 1, wherein the resource information of the PUSCH includes at least one of the following:
    发送所述PUSCH所使用的PUSCH资源标识ID;Sending a PUSCH resource identification ID used by the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的起始时域位置信息;Sending the starting time domain location information of the target PUSCH resource used by the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的频域位置信息;Sending frequency domain position information of a target PUSCH resource used by the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的起始时域位置的总数量;The total number of starting time domain positions of PUSCH resources available for sending the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的频域位置的总数量。The total number of frequency domain positions of PUSCH resources available for sending the PUSCH.
  3. 根据权利要求2所述的方法,其特征在于,所述目标PUSCH资源的起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。The method according to claim 2, wherein the starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the starting The start slot position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
  4. 根据权利要求2或3所述的方法,其特征在于,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。The method according to claim 2 or 3, wherein the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  5. 根据权利要求1至5中任一项所述的方法,其特征在于,所述第一随机接入过程包括第一步骤和第二步骤;The method according to any one of claims 1 to 5, wherein the first random access procedure includes a first step and a second step;
    在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
    在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  6. 根据权利要求5所述的方法,其特征在于,所述随机接入响应消息包括以下中的至少一项:The method according to claim 5, wherein the random access response message comprises at least one of the following:
    所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。An identification ID of the random access preamble sent by the terminal device, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
  7. 一种用于随机接入的方法,其特征在于,包括:A method for random access, comprising:
    终端设备根据发送第一物理上行共享信道PUSCH的资源信息,确定第一随机接入无线网络临时标识符RA-RNTI;The terminal device determines the first random access wireless network temporary identifier RA-RNTI according to the resource information of the first physical uplink shared channel PUSCH;
    所述终端设备根据所述第一RA-RNTI检测第一物理下行控制信道PDCCH,其中,所述第一RA-RNTI用于所述网络设备加扰所述第一PDCCH的循环冗余校验CRC。Detecting, by the terminal device, a first physical downlink control channel PDCCH according to the first RA-RNTI, wherein the first RA-RNTI is used by the network device to scramble a cyclic redundancy check CRC of the first PDCCH .
  8. 根据权利要求7所述的方法,其特征在于,所述PUSCH的资源信息包括以下中的至少一项:The method according to claim 7, wherein the resource information of the PUSCH includes at least one of the following:
    所述PUSCH所使用的PUSCH资源标识ID;A PUSCH resource identification ID used by the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
    可用于发送所述PUSCH的PUSCH资源中所有的起始时域位置的总数量;The total number of all starting time domain positions in a PUSCH resource available for sending the PUSCH;
    可用于发送所述PUSCH的PUSCH资源中所有的起始频域位置的总数量;The total number of all starting frequency domain positions in a PUSCH resource available for sending the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的第一起始时域位置信息;Sending the first starting time domain location information of the target PUSCH resource used by the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的频域位置信息。Sending frequency domain position information of a target PUSCH resource used by the PUSCH.
  9. 根据权利要求8所述的方法,其特征在于,所述目标PUSCH资源的第一起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。The method according to claim 8, wherein the first starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the The starting slot position information is used to indicate an index of a starting slot where the target PUSCH resource is located, and the starting symbol position information is used to indicate an index of a starting symbol where the target PUSCH resource is located.
  10. 根据权利要求8或9所述的方法,其特征在于,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。The method according to claim 8 or 9, wherein the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  11. 根据权利要求7至10中任一项所述的方法,其特征在于,所述方法还包括:The method according to any one of claims 7 to 10, wherein the method further comprises:
    所述终端设备接收所述网络设备发送的物理下行共享信道PDSCH,所述PDSCH是由所述第一PDCCH调度的,所述PDSCH包括第一随机接入过程中的随机接入响应消息。Receiving, by the terminal device, a physical downlink shared channel PDSCH sent by the network device, the PDSCH is scheduled by the first PDCCH, and the PDSCH includes a random access response message in a first random access process.
  12. 根据权利要求11所述的方法,其特征在于,所述第一随机接入过程包括第一步骤和第二步骤;The method according to claim 11, wherein the first random access procedure comprises a first step and a second step;
    在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
    在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  13. 根据权利要求12所述的方法,其特征在于,所述随机接入响应消息包括以下中的至少一项:The method according to claim 12, wherein the random access response message includes at least one of the following:
    所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分 配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。The identification ID of the random access preamble sent by the terminal device, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
  14. 一种网络设备,其特征在于,包括:A network device, comprising:
    生成模块,用于根据检测到的物理上行共享信道PUSCH的资源信息,生成第一随机接入无线网络临时标识符RA-RNTI;A generating module, configured to generate a first random access wireless network temporary identifier RA-RNTI according to the detected resource information of the physical uplink shared channel PUSCH;
    加扰模块,用于使用所述第一RA-RNTI加扰第一物理下行控制信道PDCCH的循环冗余校验CRC,其中,所述第一PDCCH用于调度第一随机接入过程中的随机接入响应消息。A scrambling module, configured to use the first RA-RNTI to scramble a cyclic redundancy check CRC of a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule a random in a first random access process. Access response message.
  15. 根据权利要求14所述的网络设备,其特征在于,所述PUSCH的资源信息包括以下中的至少一项:The network device according to claim 14, wherein the resource information of the PUSCH includes at least one of the following:
    发送所述PUSCH所使用的PUSCH资源标识ID;Sending a PUSCH resource identification ID used by the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的起始时域位置信息;Sending the starting time domain location information of the target PUSCH resource used by the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的频域位置信息;Sending frequency domain position information of a target PUSCH resource used by the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的起始时域位置的总数量;The total number of starting time domain positions of PUSCH resources available for sending the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的频域位置的总数量。The total number of frequency domain positions of PUSCH resources available for sending the PUSCH.
  16. 根据权利要求15所述的网络设备,其特征在于,所述目标PUSCH资源的起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。The network device according to claim 15, wherein the starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein the The starting slot position information is used to indicate an index of a starting slot where the target PUSCH resource is located, and the starting symbol position information is used to indicate an index of a starting symbol where the target PUSCH resource is located.
  17. 根据权利要求15或16所述的网络设备,其特征在于,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。The network device according to claim 15 or 16, wherein the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  18. 根据权利要求14至17中任一项所述的网络设备,其特征在于,所述第一随机接入过程包括第一步骤和第二步骤;The network device according to any one of claims 14 to 17, wherein the first random access procedure includes a first step and a second step;
    在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
    在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  19. 根据权利要求18所述的网络设备,其特征在于,所述随机接入响应消息包括以下中的至少一项:The network device according to claim 18, wherein the random access response message comprises at least one of the following:
    所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。An identification ID of the random access preamble sent by the terminal device, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
  20. 一种终端设备,其特征在于,包括:A terminal device, comprising:
    确定模块,用于根据发送第一物理上行共享信道PUSCH的资源信息,确定第一随机接入无线网络临时标识符RA-RNTI;A determining module, configured to determine a first random access radio network temporary identifier RA-RNTI according to the resource information of the first physical uplink shared channel PUSCH;
    通信模块,用于根据所述第一RA-RNTI检测第一物理下行控制信道PDCCH,其中,所述第一RA-RNTI用于所述网络设备加扰所述第一PDCCH的循环冗余校验CRC。A communication module configured to detect a first physical downlink control channel PDCCH according to the first RA-RNTI, wherein the first RA-RNTI is used by the network device to scramble the cyclic redundancy check of the first PDCCH CRC.
  21. 根据权利要求20所述的终端设备,其特征在于,所述PUSCH的资源信息包括以下中的至少一项:The terminal device according to claim 20, wherein the resource information of the PUSCH includes at least one of the following:
    所述PUSCH所使用的PUSCH资源标识ID;A PUSCH resource identification ID used by the PUSCH;
    可用于发送所述PUSCH的PUSCH资源的总数量;The total number of PUSCH resources available for sending the PUSCH;
    可用于发送所述PUSCH的PUSCH资源中所有的起始时域位置的总数量;The total number of all starting time domain positions in a PUSCH resource available for sending the PUSCH;
    可用于发送所述PUSCH的PUSCH资源中所有的起始频域位置的总数量;The total number of all starting frequency domain positions in a PUSCH resource available for sending the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的第一起始时域位置信息;Sending the first starting time domain location information of the target PUSCH resource used by the PUSCH;
    发送所述PUSCH所使用的目标PUSCH资源的频域位置信息。Sending frequency domain position information of a target PUSCH resource used by the PUSCH.
  22. 根据权利要求21所述的终端设备,其特征在于,所述目标PUSCH资源的第一起始时域位置信息包括所述目标PUSCH资源的起始符号位置信息和起始时隙位置信息,其中,所述起始时隙位置信息用于指示所述目标PUSCH资源所在的起始时隙的索引,所述起始符号位置信息用于指示所述目标PUSCH资源所在的起始符号的索引。The terminal device according to claim 21, wherein the first starting time domain position information of the target PUSCH resource includes starting symbol position information and starting slot position information of the target PUSCH resource, wherein: The start slot position information is used to indicate an index of a start slot where the target PUSCH resource is located, and the start symbol position information is used to indicate an index of a start symbol where the target PUSCH resource is located.
  23. 根据权利要求21或22所述的终端设备,其特征在于,所述目标PUSCH资源的频域位置信息用于指示所述目标PUSCH资源所在的频域位置的索引。The terminal device according to claim 21 or 22, wherein the frequency domain position information of the target PUSCH resource is used to indicate an index of a frequency domain position where the target PUSCH resource is located.
  24. 根据权利要求20至23中任一项所述的终端设备,其特征在于,所述通信模块还用于:The terminal device according to any one of claims 20 to 23, wherein the communication module is further configured to:
    接收所述网络设备发送的物理下行共享信道PDSCH,所述PDSCH是由所述第一PDCCH调度的,所述PDSCH包括第一随机接入过程中的随机接入响应消息。Receiving a physical downlink shared channel PDSCH sent by the network device, the PDSCH being scheduled by the first PDCCH, and the PDSCH including a random access response message in a first random access process.
  25. 根据权利要求24所述的终端设备,其特征在于,所述第一随机接入过程包括第一步骤和第二步骤;The terminal device according to claim 24, wherein the first random access procedure comprises a first step and a second step;
    在所述第一步骤中,所述终端设备向所述网络设备发送随机接入前导和PUSCH,其中,用于发送所述随机接入前导的资源和用于发送所述PUSCH的资源具有对应关系;In the first step, the terminal device sends a random access preamble and a PUSCH to the network device, and a resource for sending the random access preamble and a resource for sending the PUSCH have a correspondence relationship. ;
    在所述第二步骤中,所述网络设备向所述终端设备回复随机接入响应消息,所述随机接入响应消息为所述随机接入前导和所述PUSCH的响应消息。In the second step, the network device returns a random access response message to the terminal device, and the random access response message is a response message of the random access preamble and the PUSCH.
  26. 根据权利要求25所述的终端设备,其特征在于,所述随机接入响应消息包括以下中的至少一项:The terminal device according to claim 25, wherein the random access response message includes at least one of the following:
    所述终端设备发送的所述随机接入前导的标识ID、所述网络设备为所述终端设备分配的用于上行传输的资源、竞争解决消息和时间提前量TA信息。An identification ID of the random access preamble sent by the terminal device, resources for uplink transmission allocated by the network device to the terminal device, contention resolution messages, and TA information.
  27. 一种网络设备,其特征在于,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6中任一项所述的方法。A network device, comprising: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 6. The method of one item.
  28. 一种芯片,其特征在于,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6中任一项所述的方法。A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device having the chip installed executes the method according to any one of claims 1 to 6.
  29. 一种计算机可读存储介质,其特征在于,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6中任一项所述的方法。A computer-readable storage medium, which is used for storing a computer program, which causes a computer to execute the method according to any one of claims 1 to 6.
  30. 一种计算机程序产品,其特征在于,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6中任一项所述的方法。A computer program product, comprising computer program instructions that cause a computer to perform the method according to any one of claims 1 to 6.
  31. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至6中任一项所述的方法。A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 6.
  32. 一种终端设备,其特征在于,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7至13中任一项所述的方法。A terminal device, comprising: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute any one of claims 7 to 13. The method of one item.
  33. 一种芯片,其特征在于,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7至13中任一项所述的方法。A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device having the chip installed executes the method according to any one of claims 7 to 13.
  34. 一种计算机可读存储介质,其特征在于,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7至13中任一项所述的方法。A computer-readable storage medium, characterized in that it is used to store a computer program that causes a computer to execute the method according to any one of claims 7 to 13.
  35. 一种计算机程序产品,其特征在于,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7至13中任一项所述的方法。A computer program product, comprising computer program instructions that cause a computer to execute the method according to any one of claims 7 to 13.
  36. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求7至13中任一项所述的方法。A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 7 to 13.
  37. 一种通信***,其特征在于,包括:A communication system, comprising:
    如权利要求14至19中任一项所述的网络设备;以及The network device according to any one of claims 14 to 19; and
    如权利要求20至26中任一项所述的终端设备。The terminal device according to any one of claims 20 to 26.
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