WO2021000295A1 - 随机接入方法、装置、系统及存储介质 - Google Patents

随机接入方法、装置、系统及存储介质 Download PDF

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Publication number
WO2021000295A1
WO2021000295A1 PCT/CN2019/094591 CN2019094591W WO2021000295A1 WO 2021000295 A1 WO2021000295 A1 WO 2021000295A1 CN 2019094591 W CN2019094591 W CN 2019094591W WO 2021000295 A1 WO2021000295 A1 WO 2021000295A1
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Prior art keywords
random access
terminal
rnti
message
load
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PCT/CN2019/094591
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English (en)
French (fr)
Inventor
董贤东
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201980001271.XA priority Critical patent/CN112449764B/zh
Priority to US17/624,221 priority patent/US20220353917A1/en
Priority to PCT/CN2019/094591 priority patent/WO2021000295A1/zh
Publication of WO2021000295A1 publication Critical patent/WO2021000295A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a random access method, device, system and storage medium.
  • the terminal can establish a connection with the access network device in a random access mode, so as to realize communication with the network through the access network device.
  • the access network device broadcasts a system message to the terminal; the terminal sends a preamble (message one) to the access network device on the first time-frequency resource according to the system message; the access network device sends msg2 (message two) to the terminal ), the msg2 includes the index number of the preamble monitored by the access network device, indication information, and temporary C-RNTI (Cell Radio Network Temporary Identifier), and the indication information is used to indicate the sending of msg3 ( The second time-frequency resource of message 3); if the index number in msg2 indicates the preamble sent by the terminal, the terminal uses a temporary C-RNTI to scramble msg3 and sends the scrambling on the second time-frequency resource After msg3; the access network equipment allocates a permanent C-RNTI to the terminal, and sends msg4 (message 4) carrying the permanent C-RNTI to the terminal.
  • the terminal determines that the random access
  • the messages sent by the terminal can be combined.
  • the present disclosure provides a random access method, device, system, and storage medium, which are used to solve the technical problem that the random access process has many steps, resulting in low efficiency of random access.
  • a random access method including:
  • the terminal sends the preamble in the random access message on the first time-frequency resource according to the system message sent by the access network device, and sends the load in the random access message on the second time-frequency resource;
  • the access network device sends a confirmation message, where the confirmation message is used to inform the access network device that the terminal has received the C-RNTI.
  • the determining whether to send a confirmation message to the access network device according to whether the random access response message includes a C-RNTI includes:
  • the terminal determines to send the confirmation message to the access network device;
  • the terminal determines not to send the confirmation message to the access network device.
  • the sending the load in the random access message on the second time-frequency resource includes:
  • the terminal If the C-RNTI is already stored in the terminal, the terminal generates a first load including the C-RNTI, and the first load is used to inform the access network device that it does not need to do anything this time.
  • the terminal allocates the C-RNTI, and sends the first load in the random access message on the second time-frequency resource;
  • the terminal If the C-RNTI is not stored in the terminal, the terminal generates a second load that does not include the C-RNTI, and the second load is used to inform the access network device that this time is the terminal Allocate the C-RNTI, and send the second load in the random access message on the second time-frequency resource.
  • the confirming whether the terminal has stored C-RNTI according to the connection state of the terminal includes:
  • the terminal If the terminal is in a radio resource control connected state RRC_connected or a radio resource control inactive state RRC_inactive, it is determined that the terminal has stored the C-RNTI;
  • the terminal If the terminal is in a radio resource control idle state RRC_idle or an initial access state, it is determined that the terminal does not store the C-RNTI.
  • the terminal acquiring the random access response message sent by the access network device includes:
  • the terminal descrambles the scrambled physical downlink control channel PDCCH according to the C-RNTI;
  • the terminal receives the random access response message according to the first indication information transmitted on the descrambled PDCCH.
  • the terminal acquiring the random access response message sent by the access network device includes:
  • the terminal descrambles the scrambled PDCCH according to the RA-RNTI;
  • the terminal receives the random access response message according to the second indication information transmitted on the descrambled PDCCH.
  • a random access method including:
  • the access network device sends a system message to the terminal, where the system message is used to instruct the terminal to send the preamble in the random access message on the first time-frequency resource, and send the random access message on the second time-frequency resource.
  • the load in the message is used to instruct the terminal to send the preamble in the random access message on the first time-frequency resource, and send the random access message on the second time-frequency resource.
  • the access network device generates a corresponding random access response message according to whether the load carries the cell-radio network temporary identifier C-RNTI, the random access response message includes the first terminal identifier, or the random access response message
  • the access response message includes the first terminal identifier and the C-RNTI.
  • the access network device generates a corresponding random access response message according to whether the load carries C-RNTI, including:
  • the access network device allocates the C-RNTI to the terminal, and generates a load including the C-RNTI A first random access response message, using the first random access response message as the random access response message;
  • the access network device If the load in the random access message is the first load including the C-RNTI, the access network device generates a second random access response message that does not include the C-RNTI, and sends the first load 2.
  • a random access response message is used as the random access response message.
  • the load is the first load including the C-RNTI
  • the random access response message is a second random access response message that does not include the C-RNTI
  • the access network device scrambles the physical downlink control channel PDCCH according to the C-RNTI;
  • the access network device transmits first indication information on the scrambled PDCCH, where the first indication information is used to instruct the terminal to receive the random access response message.
  • the method further includes:
  • the access network device scrambles the PDCCH according to the RA-RNTI
  • the access network device transmits second indication information on the scrambled PDCCH, where the second indication information is used to instruct the terminal to receive the random access response message.
  • a random access device for use in a terminal, the device including:
  • the sending module is configured to send the preamble in the random access message on the first time-frequency resource, and send the load in the random access message on the second time-frequency resource according to the system message sent by the access network device ;
  • An obtaining module configured to obtain a random access response message sent by the access network device
  • the determining module is configured to, when the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, according to whether the random access response message includes the cell-wireless network temporary identifier C -RNTI, determining whether to send a confirmation message to the access network device, where the confirmation message is used to inform the access network device that the terminal has received the C-RNTI.
  • the determining module is further configured to:
  • the random access response message includes the C-RNTI, it is determined not to send the confirmation message to the access network device.
  • the sending module is further configured to:
  • a first load including the C-RNTI is generated, and the first load is used to inform the access network device that there is no need to allocate for the terminal this time
  • the C-RNTI sending the first load in the random access message on the second time-frequency resource;
  • a second load that does not include the C-RNTI is generated, and the second load is used to inform the access network device to allocate the terminal to the terminal this time.
  • C-RNTI sending the second load in the random access message on the second time-frequency resource.
  • the sending module is further configured to:
  • the terminal If the terminal is in a radio resource control connected state RRC_connected or a radio resource control inactive state RRC_inactive, it is determined that the terminal has stored the C-RNTI;
  • the terminal If the terminal is in a radio resource control idle state RRC_idle or an initial access state, it is determined that the terminal does not store the C-RNTI.
  • the acquiring module is further configured to:
  • the random access response message is received according to the first indication information transmitted on the descrambled PDCCH.
  • the acquiring module is further configured to:
  • the random access response message is received according to the second indication information transmitted on the descrambled PDCCH.
  • a random access apparatus for use in an access network device, the apparatus including:
  • the sending module is configured to send a system message to the terminal, where the system message is used to instruct the terminal to send the preamble in the random access message on the first time-frequency resource, and send the random access message on the second time-frequency resource. Load in the access message;
  • a receiving module configured to receive the preamble on the first time-frequency resource, and receive the load on the second time-frequency resource;
  • the generating module is configured to generate a corresponding random access response message according to whether the load carries the cell-wireless network temporary identifier C-RNTI, the random access response message includes the first terminal identifier, or the random The access response message includes the first terminal identifier and the C-RNTI.
  • the generating module is further configured to:
  • the load in the random access message is the second load that does not include the C-RNTI, allocate the C-RNTI to the terminal, and generate a first random access response including the C-RNTI Message, using the first random access response message as the random access response message;
  • the load in the random access message is the first load including the C-RNTI
  • a second random access response message that does not include the C-RNTI is generated, and the second random access response message is As the random access response message.
  • the apparatus further includes:
  • the first scrambling module is configured to scramble the physical downlink control channel PDCCH according to the C-RNTI;
  • the first transmission module is configured to transmit first indication information on the PDCCH scrambled by the first scrambling module, where the first indication information is used to instruct the terminal to receive the random access response message.
  • the device further includes:
  • a calculation module configured to calculate a random access-wireless wireless network temporary identifier RA-RNTI according to the first time-frequency resource
  • the second scrambling module is configured to scramble the PDCCH according to the RA-RNTI obtained by the calculation module;
  • the second transmission module is configured to transmit second indication information on the PDCCH scrambled by the second scrambling module, where the second indication information is used to instruct the terminal to receive the random access response message.
  • a terminal includes:
  • a memory for storing processor executable instructions
  • the processor is configured to:
  • the access network device sends a confirmation message, where the confirmation message is used to inform the access network device that the terminal has received the C-RNTI.
  • an access network device including:
  • a memory for storing processor executable instructions
  • the processor is configured to:
  • the system message is used to instruct the terminal to send the preamble in the random access message on the first time-frequency resource, and send the load in the random access message on the second time-frequency resource ;
  • the random access response message includes the first terminal identifier, or the random access response message includes The first terminal identifier and the C-RNTI.
  • a random access system which includes the random access device described above and the random access device described above, or includes the terminal described above and the access device described above.
  • Network access equipment included in the random access device described above and the random access device described above, or includes the terminal described above and the access device described above.
  • a computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, the at least one instruction, the at least one program ,
  • the code set or instruction set is loaded and executed by the processor to implement the random access method as described above, or the at least one instruction, the at least one program, the code set or the instruction set is
  • the processor is loaded and executed to implement the random access method as described above.
  • the terminal can send the preamble in the random access message on the first time-frequency resource and the load in the random access message on the second time-frequency resource according to the system message, the messages sent by the terminal can be combined . Then, the terminal may receive a random access response message, and when it is determined that the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, determine whether to determine whether or not the C-RNTI is included in the corresponding random access message. A confirmation message is sent to ensure the integrity of the random access process.
  • FIG. 1 is a schematic diagram of the implementation environment involved in various embodiments of the present disclosure.
  • Fig. 2 is a flow chart showing a random access method according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing a random access method according to an exemplary embodiment.
  • Fig. 4 is a flowchart showing a random access method according to the related technology.
  • Fig. 5 is a flow chart showing a random access method according to an exemplary embodiment.
  • Fig. 6 is a block diagram showing a random access device according to an exemplary embodiment.
  • Fig. 7 is a block diagram showing a random access device according to an exemplary embodiment.
  • Fig. 8 is a block diagram showing a random access device according to an exemplary embodiment.
  • Fig. 9 is a block diagram showing a device for random access according to an exemplary embodiment.
  • Fig. 10 is a block diagram showing a random access device according to an exemplary embodiment.
  • Fig. 11 is a block diagram showing a random access system according to an exemplary embodiment.
  • Fig. 1 shows a schematic structural diagram of a mobile communication system provided by an embodiment of the present disclosure.
  • the mobile communication system may be a 5G system, also known as an NR (New Radio) system.
  • the mobile communication system includes: an access network device 101 and a terminal 102.
  • the access network device 101 may be a base station, and the embodiment of the present application does not limit the specific implementation manner of the access network device 101.
  • the access network device 101 may also include a home base station (Home eNB, HeNB), a relay (Relay), a pico base station, and the like.
  • the access network device 101 and the terminal 102 establish a wireless connection through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard.
  • the wireless air interface is a New Radio (NR); or, the wireless air interface may also be a 5G-based radio interface.
  • the wireless air interface of the next generation mobile communication network technology standard is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard.
  • 5G fifth-generation mobile communication network technology
  • NR New Radio
  • the terminal 102 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 102 can communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal 102 can be a mobile terminal, such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal For example, it can be a portable, pocket-sized, handheld, computer built-in or vehicle-mounted mobile device.
  • Subscriber unit Subscriber Unit
  • Subscriber station Subscriber Station
  • mobile station Mobile Station
  • mobile station Mobile
  • Remote station Remote station
  • access point Access Point
  • Remote terminal Remote Terminal
  • Access Terminal Access Terminal
  • user device User Terminal
  • user agent User Agent
  • User Equipment User Equipment
  • User Equipment User Equipment
  • FIG. 1 may include multiple access network devices 101 and/or multiple terminals 102.
  • FIG. 1 shows one access network device 101 and one terminal 102. Take an example, but this embodiment does not limit this.
  • Fig. 2 is a flow chart showing a random access method according to an exemplary embodiment.
  • the random access method is applied in the implementation environment shown in Fig. 1.
  • the random access method includes the following step.
  • step 201 the access network device sends a system message to the terminal.
  • step 202 the terminal sends the preamble in the random access message on the first time-frequency resource, and sends the load in the random access message on the second time-frequency resource according to the system message sent by the access network device.
  • step 203 the access network device receives the preamble on the first time-frequency resource, and receives the load on the second time-frequency resource.
  • the access network device In step 204, the access network device generates a corresponding random access response message according to whether the C-RNTI is carried in the load.
  • the random access response message includes the first terminal identifier, or the random access response message includes the first terminal identifier.
  • step 205 the terminal obtains the random access response message sent by the access network device.
  • step 206 if the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, determine whether to send a confirmation message to the access network device according to whether the C-RNTI is included in the random access response message , The confirmation message is used to inform the access network equipment that the terminal has received the C-RNTI.
  • steps 201 and 203-204 can be separately implemented as an embodiment on the access network device side, and steps 202 and 205-206 can be separately implemented as an embodiment on the terminal side.
  • the terminal can send the preamble in the random access message on the first time-frequency resource and send the random access message on the second time-frequency resource according to the system message. In this way, the messages sent by the terminal can be combined. Then, the terminal may receive a random access response message, and when it is determined that the first terminal identification in the random access response message is the same as the second terminal identification of the terminal, determine whether to determine whether or not the C-RNTI is included in the random access response message. A confirmation message is sent to ensure the integrity of the random access process.
  • Fig. 3 is a flow chart showing a random access method according to another exemplary embodiment.
  • the random access method is applied to the implementation environment shown in Fig. 1.
  • the random access method includes follow the steps below.
  • step 301 the access network device sends a system message to the terminal.
  • system message is used to instruct the terminal to send the preamble in the random access message on the first time-frequency resource, and send the load in the random access message on the second time-frequency resource.
  • the following first introduces the content of system messages.
  • the system message may include SSB (Synchronization Signal Block, synchronization information block), and the SSB includes PSS (Primary Synchronization Signal, primary synchronization signal) and SSS (Secondary Synchronization Signal, secondary synchronization signal),
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal, secondary synchronization signal
  • the system message may include first resource indication information and second resource indication information.
  • first resource indication information is used to indicate to the terminal the first time-frequency resource for sending the preamble in the random access message
  • the second resource indication information is used to indicate to the terminal the second time when the load in the random access message is sent. Frequency resources.
  • the access network device may determine the first time-frequency resource and the second time-frequency resource according to a predetermined algorithm.
  • the frequency domain resource in the first time-frequency resource and the frequency domain resource in the second time-frequency resource may be the same or different, which is not limited in this embodiment.
  • the time domain resource in the first time-frequency resource is different from the time domain resource in the second time-frequency resource.
  • the time domain resource in the first time-frequency resource and the time domain resource in the second time-frequency resource are not continuous. That is, the preamble and load in the random access message are sent separately.
  • the time domain resource in the second time-frequency resource is after the time domain resource in the first time-frequency resource, that is, the terminal first sends the preamble in the random access message, and then sends the load in the random access message.
  • the function of the random access message is to enable the terminal to randomly access the network.
  • the random access message may include preamble and load.
  • the random access message may also include other information, or may not include other information, which is not limited in this embodiment.
  • the preamble is used to identify the identity of the terminal during random access. If the preamble of the access network device is not stored in the terminal, the access network device can also carry the preamble in a system message and send it to the terminal, and the system message also includes the preamble. If the preamble of the access network device is stored in the terminal, the preamble may not be included in the system message. Among them, when the terminal accesses the access network device through the contention mechanism, the system message carries a preamble sequence, and each preamble is a preamble used for access based on the contention mechanism.
  • the load may also be called payload, which is used to send information related to RRC (Radio Resource Control, radio resource control).
  • RRC Radio Resource Control
  • the content in the load may be different.
  • the load may include RRC Connection Resume/re-establishment, which may include the establishment cause (establishmentCause): terminal In the state of waiting for uplink synchronization (also known as the uplink out-of-synchronization state), it needs to reconnect to the network, or there is data to be transmitted and its size in the upper layer, and the network side is not configured with uplink transmission resources and may include the C- allocated to the terminal by the network side.
  • RNTI Radio Resource Control
  • the load may include RRC Connection Request, which may include the initial UE identity (Initial UE Identity) and the reason for creation: emergency, highPriorityAccess, mt-Access, mo- Signalling, mo-Data, mo-VoiceCall, mo-VideoCall, mo-SMS, mps-PriorityAccess, mcs-PriorityAccess.
  • RRC Connection Request may include the initial UE identity (Initial UE Identity) and the reason for creation: emergency, highPriorityAccess, mt-Access, mo- Signalling, mo-Data, mo-VoiceCall, mo-VideoCall, mo-SMS, mps-PriorityAccess, mcs-PriorityAccess.
  • the system message may include first MCS (Modulation and Coding Scheme) information and second MCS information.
  • the first MCS information is used to indicate the transmission rate of the preamble.
  • the second MCS information is used to indicate the transmission rate of the load.
  • the first MCS information and the second MCS information may be indexes, which are used to indicate a group of transmission parameters in the rate table.
  • the numerical value of the first MCS information and the numerical value of the second MCS information may be the same or different, which is not limited in this embodiment.
  • step 302 the terminal sends the preamble in the random access message on the first time-frequency resource, and sends the load in the random access message on the second time-frequency resource according to the system message sent by the access network device.
  • the terminal can read the first resource indication information from the system message, and determine the first time-frequency resource according to the first resource indication information; the terminal can also determine the preamble to be sent, and send the preamble on the first time-frequency resource .
  • the terminal since the system message also includes the first MCS information, the terminal may send the preamble on the first time-frequency resource according to the first MCS information. That is, the terminal may search for a corresponding set of transmission parameters in the rate table according to the first MCS information, and then send the preamble on the first time-frequency resource according to the transmission parameters.
  • the terminal may read the second resource indication information from the system message, and determine the second time-frequency resource according to the second resource indication information; the terminal may also generate the load in the random access message, and send the second time-frequency resource on the second time-frequency resource. load. The following describes how to send the load in the random access message.
  • the terminal confirms whether the C-RNTI has been stored in the terminal according to the connection status; if the C-RNTI has been stored in the terminal, the terminal generates a first load including the C-RNTI, and the first load is used to inform the connection
  • the network access device does not need to allocate the C-RNTI to the terminal this time, and sends the first load in the random access message on the second time-frequency resource; if the C-RNTI is not stored in the terminal, the terminal generates a C-RNTI that does not include the C-RNTI.
  • the second load the second load is used to inform the access network device to allocate the C-RNTI to the terminal this time, and send the second load in the random access message on the second time-frequency resource.
  • the terminal When the terminal is in the RRC_connected state or the RRC_inactive state, it indicates that the terminal has previously been connected to the access network device in an RRC connection, so the terminal has stored the C-RNTI allocated by the access network device to the terminal. Since the subsequent interaction between the terminal and the access network device will use the C-RNTI, when the C-RNTI is already stored in the terminal, the terminal can carry the C-RNTI in the first load and send it to the access network device In this way, when the access network device determines that the C-RNTI is included in the first load, it does not need to re-allocate the C-RNTI to the terminal, and then interact with the terminal based on the C-RNTI.
  • the terminal When the terminal is in the RRC_idle state or the initial access state, it means that the terminal has not previously been connected to the access network equipment in an RRC connection. Therefore, the terminal does not store the C-RNTI allocated by the access network equipment to the terminal, and the terminal generates no C-RNTI. -The second load of the RNTI. In this way, when the access network device determines that the second load does not include the C-RNTI, it needs to allocate the C-RNTI to the terminal, and subsequently interact with the terminal based on the allocated C-RNTI.
  • the terminal After the terminal generates the load (that is, the first load or the second load), the terminal can calculate the RA-RNTI (Random Access-Radio Network Temporary Identifier) according to the first time-frequency resource, according to the RA-RNTI (Random Access-Radio Network Temporary Identifier). -RNTI scrambles the load in the access message, and sends the scrambled load on the second time-frequency resource.
  • RA-RNTI Random Access-Radio Network Temporary Identifier
  • the system message also includes the second MCS information, so the terminal may send the scrambled load on the second time-frequency resource according to the second MCS information. That is, the terminal may search for a corresponding set of transmission parameters in the rate table according to the second MCS information, and then send the scrambled load on the second time-frequency resource according to the transmission parameters.
  • step 303 the access network device receives the preamble on the first time-frequency resource, and receives the load on the second time-frequency resource.
  • the access network device may receive the preamble on the first time-frequency resource according to the first MCS information. That is, the access network device may search for a corresponding set of transmission parameters in the rate table according to the first MCS information, and then receive the preamble on the first time-frequency resource according to the transmission parameters.
  • the access network device may receive the load on the second time-frequency resource according to the second MCS information.
  • the scrambled load That is, the access network device may search for a corresponding set of transmission parameters in the rate table according to the second MCS information, and then receive the scrambled load on the second time-frequency resource according to the transmission parameters.
  • the access network device After receiving the scrambled load, the access network device calculates the RA-RNTI according to the first time-frequency resource, and then descrambles the scrambled load according to the RA-RNTI to obtain the load in the access network message.
  • the load is the first load or the second load.
  • step 304 the access network device generates a corresponding random access response message according to whether the C-RNTI is carried in the load, the random access response message includes the first terminal identifier, or the random access response includes the first Terminal identification and C-RNTI.
  • the access network device can determine whether the load is the first load or the second load. If the load is the second load that does not include C-RNTI, the access network device allocates C-RNTI to the terminal, and generates a first random access response message including C-RNTI, and uses the first random access response message as Random access response message. If the load is the first load including the C-RNTI, the access network device generates a second random access response message that does not include the C-RNTI, and uses the second random access response message as the random access response message.
  • the access network device can also obtain the first terminal identifier and UL Grant (uplink scheduling grant) of the terminal. Then, when the load is the second load, the random access response message includes the first terminal identifier and UL Grant. And C-RNTI; when the load is the first load, the random access response message includes the first terminal identifier and the UL Grant.
  • the random access response message may or may not include other information, which is not limited in this embodiment.
  • step 305 the access network device sends a random access response message to the terminal.
  • the access network device scrambles the PDCCH (Physical Downlink Control Channel) according to the C-RNTI; the access network device The first indication information is transmitted on the scrambled PDCCH, where the first indication information is used to instruct the terminal to receive the random access response message.
  • PDCCH Physical Downlink Control Channel
  • the first indication information may be DCI (Downlink Control Information, downlink control information), which is used to instruct the terminal to demodulate the random access transmitted on the PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) at the corresponding time-frequency resource location Response message, the random access response message is the second random access response message.
  • DCI Downlink Control Information, downlink control information
  • Scrambling the PDCCH refers to scrambling the CRC (Cyclic Redundancy Check) of the DCI transmitted on the PDCCH by using the C-RNTI.
  • CRC Cyclic Redundancy Check
  • the random access response message may not include the first terminal identifier.
  • the access network equipment calculates the RA-RNTI according to the first time-frequency resource; the access network equipment scrambles the PDCCH according to the RA-RNTI; the access network equipment transmits the first PDCCH on the scrambled PDCCH Two indication information, the second indication information is used to instruct the terminal to receive the random access response message.
  • the second indication information may be DCI.
  • DCI DCI
  • the first transmission mode requires the load to include C-RNTI
  • the second transmission mode does not require the load to include C-RNTI, that is, regardless of whether the access network device sends the first random access that includes C-RNTI
  • the access network device can use the second sending mode to send the random access response message.
  • step 306 the terminal obtains the random access response message sent by the access network device.
  • the terminal in the first receiving mode, if the load in the random access message is the first load including the C-RNTI, the terminal will descramble the scrambled PDCCH according to the C-RNTI ; If the descrambling of the scrambled PDCCH is successful, the terminal receives the random access response message according to the first indication information transmitted on the descrambled PDCCH.
  • the terminal can use the C-RNTI to descramble the CRC in the DCI transmitted on the scrambled PDCCH; if the CRC descrambling is successful, determine the descrambling of the scrambled PDCCH When the scrambling is successful, the random access response message transmitted on the PDSCH is demodulated at the corresponding time-frequency resource location according to the indication of the DCI, where the random access response message is the second random access response message. If the descrambling of the CRC fails, it is determined that the descrambling of the scrambled PDCCH fails, and the terminal determines that the random access fails and re-initiates random access.
  • the terminal calculates the RA-RNTI according to the first time-frequency resource; the terminal descrambles the scrambled PDCCH according to the RA-RNTI; if the scrambled If the PDCCH descrambling is successful, the terminal receives the random access response message according to the second indication information transmitted on the descrambled PDCCH.
  • the terminal can use RA-RNTI to descramble the CRC in the DCI transmitted on the scrambled PDCCH; if the CRC descrambling is successful, it is determined that the scrambled PDCCH is successfully descrambled, according to the instructions of the DCI in the corresponding time
  • the frequency resource location demodulates the random access response message transmitted on the PDSCH. If the descrambling of the CRC fails, it is determined that the descrambling of the scrambled PDCCH fails, and the terminal determines that the random access fails and re-initiates random access.
  • step 307 if the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, and the random access response message includes the C-RNTI, the terminal determines to send a confirmation message to the access network device.
  • the terminal After receiving the random access response message, the terminal can read the first terminal identifier in the random access response message, and compare whether the first terminal identifier is the same as the second terminal identifier of the terminal itself. If the first terminal identifier and the second terminal identifier are the same, the terminal determines that this random access is successful; if the first terminal identifier is different from the second terminal identifier, the terminal determines that this random access has failed and re-initiates random access.
  • the terminal when the terminal determines that the first terminal identifier is the same as the second terminal identifier, it also needs to determine whether it needs to send a confirmation message to the access network device. That is, if the random access response message includes C-RNTI, the terminal determines to send an acknowledgement message to the access network device; if the random access response message does not include C-RNTI, the terminal determines not to send an acknowledgement to the access network device news.
  • the terminal may also determine whether it is necessary to send a confirmation message to the access network device through any one of the following two determination methods.
  • the terminal determines that the random access response message includes the C-RNTI and needs to send a confirmation message to the access network device ; If the load in the random access message is the first load including the C-RNTI, the terminal determines that the random access response message does not include the C-RNTI, and does not send a confirmation message to the access network device.
  • the terminal determines that the random access response message does not include the C-RNTI, and does not send a confirmation message to the access network device.
  • step 308 if the first terminal identification in the random access response message is the same as the second terminal identification of the terminal, and the C-RNTI is not included in the random access response message, the terminal determines not to send an acknowledgement to the access network device Message, the process ends.
  • the C-RNTI is not included in the random access response message, it means that the C-RNTI is already stored in the terminal, and the terminal can subsequently interact with the terminal based on the C-RNTI.
  • steps 301 and 303-305 can be implemented separately as an embodiment on the access network device side, and steps 302, 306-307 can be implemented separately as an embodiment on the terminal side; or, steps 301 and 303-305 can be implemented separately as an embodiment on the terminal side.
  • steps 302, 306, and 308 can be implemented separately as an embodiment on the terminal side.
  • the terminal can send the preamble in the random access message on the first time-frequency resource and send the random access message on the second time-frequency resource according to the system message. In this way, the messages sent by the terminal can be combined. Then, the terminal may receive a random access response message, and when it is determined that the first terminal identification in the random access response message is the same as the second terminal identification of the terminal, determine whether to determine whether or not the C-RNTI is included in the random access response message. A confirmation message is sent to ensure the integrity of the random access process.
  • the C-RNTI can be used to distinguish different terminals. In this way, it can be solved that these terminals are randomly connected. Conflict during the entry process.
  • FIG. 4 shows the random access process in the related technology
  • FIG. 5 shows the random access process of this embodiment.
  • the random access process in related technologies is as follows:
  • step 401 the access network device sends a system message (first indication information) to the terminal.
  • step 402 the terminal sends msg1 (preamble) to the access network device on the first time-frequency resource indicated by the first indication information.
  • step 403 the access network device sends msg2 (second indication information) to the terminal.
  • step 404 the terminal sends msg3 to the access network device on the second time-frequency resource indicated by the second indication information.
  • step 405 the access network device sends msg4 to the terminal.
  • step 406 the terminal determines whether to send a confirmation message to the access network device according to whether the C-RNTI is included in Mag4.
  • step 501 the access network device sends a system message (first indication information+second indication information) to the terminal.
  • step 502 the terminal sends a preamble to the access network device on the first time-frequency resource indicated by the first indication information.
  • step 503 the terminal sends a load to the access network device on the second time-frequency resource indicated by the second indication information.
  • step 504 the access network device sends a random access response message to the terminal.
  • step 505 the terminal determines whether to send a confirmation message to the access network device according to whether the C-RNTI is included in the random access response message.
  • Fig. 6 is a block diagram showing a random access device according to an exemplary embodiment.
  • the random access device is applied to the terminal 102 shown in Fig. 1.
  • the random access device includes: 610.
  • the sending module 610 is configured to send the preamble in the random access message on the first time-frequency resource, and send the load in the random access message on the second time-frequency resource according to the system message sent by the access network device ;
  • the obtaining module 620 is configured to obtain a random access response message sent by an access network device
  • the determining module 630 is configured to, when the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, determine whether to send a message to the access network device according to whether the C-RNTI is included in the random access response message. A confirmation message is sent, which is used to inform the access network equipment that the terminal has received the C-RNTI.
  • the determining module 630 is further configured to:
  • the random access response message includes C-RNTI, it is determined to send a confirmation message to the access network device;
  • the random access response message does not include the C-RNTI, it is determined not to send a confirmation message to the access network device.
  • the sending module 610 is further configured to:
  • a first load including the C-RNTI is generated.
  • the first load is used to inform the access network equipment that there is no need to allocate the C-RNTI to the terminal this time, and send random data on the second time-frequency resource.
  • a second load that does not include the C-RNTI is generated.
  • the second load is used to inform the access network device to allocate the C-RNTI to the terminal this time and send random access on the second time-frequency resource.
  • the second load in the incoming message.
  • the sending module 610 is further configured to:
  • the terminal If the terminal is in the RRC_idle or initial access state, it is determined that the terminal does not store the C-RNTI.
  • the acquiring module 620 is further configured to:
  • the random access response message is received according to the first indication information transmitted on the descrambled PDCCH.
  • the obtaining module 620 is further configured to:
  • the random access response message is received according to the second indication information transmitted on the descrambled PDCCH.
  • the terminal can send the preamble in the random access message on the first time-frequency resource and send the random access message on the second time-frequency resource according to the system message. In this way, the messages sent by the terminal can be combined. Then, the terminal may receive a random access response message, and when it is determined that the first terminal identification in the random access response message is the same as the second terminal identification of the terminal, determine whether to determine whether or not the C-RNTI is included in the random access response message. A confirmation message is sent to ensure the integrity of the random access process.
  • the C-RNTI can be used to distinguish different terminals. In this way, it can be solved that these terminals are randomly connected. Conflict during the entry process.
  • Fig. 7 is a block diagram showing a random access device according to an exemplary embodiment.
  • the random access device is applied to the access network device 101 shown in Fig. 1.
  • the random access device Including: sending module 710, receiving module 720 and generating module 730;
  • the sending module 710 is configured to send a system message to the terminal.
  • the system message is used to instruct the terminal to send the preamble in the random access message on the first time-frequency resource, and send the random access message on the second time-frequency resource.
  • the receiving module 720 is configured to receive the preamble on the first time-frequency resource, and receive the load on the second time-frequency resource;
  • the generating module 730 is configured to generate a corresponding random access response message according to whether the C-RNTI is carried in the load, the random access response message includes the first terminal identifier, or the random access response message includes the first terminal identifier And C-RNTI7.
  • the generating module 730 is further configured to:
  • the load in the random access message is the second load that does not include the C-RNTI
  • the C-RNTI is allocated to the terminal, and the first random access response message including the C-RNTI is generated, and the first random access response message As a random access response message
  • the load in the random access message is the first load including the C-RNTI
  • a second random access response message that does not include the C-RNTI is generated, and the second random access response message is used as the random access response message.
  • the device further includes: a first scrambling module 740 and a first transmission module 750;
  • the first scrambling module 740 is configured to scramble the PDCCH according to the C-RNTI;
  • the first transmission module 750 is configured to transmit first indication information on the PDCCH scrambled by the first scrambling module, and the first indication information is used to instruct the terminal to receive a random access response message.
  • the device further includes: a calculation module 760, a second scrambling module 770, and a second transmission module 780;
  • the calculation module 760 is configured to calculate RA-RNTI according to the first time-frequency resource
  • the second scrambling module 770 is configured to scramble the PDCCH according to the RA-RNTI obtained by the calculation module;
  • the second transmission module 780 is configured to transmit second indication information on the PDCCH scrambled by the second scrambling module, and the second indication information is used to instruct the terminal to receive a random access response message.
  • the access network device can send system messages to the terminal, and receive the preamble in the random access message on the first time-frequency resource, it can be used on the second time-frequency resource.
  • the load in the random access message is received on the upper side, so that the messages sent by the terminal can be combined.
  • the access network device sends a random access response message to the terminal, and when the terminal determines that the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, it is determined according to whether the random access response message includes C -RNTI to determine whether to send an acknowledgement message, so as to ensure the integrity of the random access process.
  • the C-RNTI can be used to distinguish different terminals. In this way, it can be solved that these terminals are randomly connected. Conflict during the entry process.
  • An exemplary embodiment of the present disclosure provides a terminal capable of implementing the random access method provided in the present disclosure.
  • the terminal includes a processor and a memory for storing the processor executable signaling;
  • the processor is configured as:
  • the first terminal identifier in the random access response message is the same as the second terminal identifier of the terminal, it is determined whether to send a confirmation message to the access network device according to whether the random access response message includes the C-RNTI, and the confirmation message is used for Inform the access network equipment that the terminal has received the C-RNTI.
  • An exemplary embodiment of the present disclosure provides an access network device that can implement the random access method provided in the present disclosure.
  • the access network device includes a processor and a memory configured to store the processor executable signaling;
  • the processor is configured as:
  • a corresponding random access response message is generated according to whether the C-RNTI is carried in the load, the random access response message includes the first terminal identifier, or the random access response message includes the first terminal identifier and the C-RNTI.
  • Fig. 9 is a block diagram showing an apparatus 900 for random access according to an exemplary embodiment.
  • the device 900 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 900 may include one or more of the following components: a processing component 902, a memory 904, a power supply component 906, a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 914, And communication component 916.
  • a processing component 902 a memory 904
  • a power supply component 906 a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 914, And communication component 916.
  • I/O input/output
  • the processing component 902 generally controls the overall operations of the device 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing element 902 may include one or more processors 920 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 902 may include one or more modules to facilitate the interaction between the processing component 902 and other components.
  • the processing component 902 may include a multimedia module to facilitate the interaction between the multimedia component 908 and the processing component 902.
  • the memory 904 is configured to store various types of data to support the operation of the device 900. Examples of such data include instructions for any application or method operating on the device 900, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 904 can be implemented by any type of volatile or nonvolatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power component 906 provides power to various components of the device 900.
  • the power component 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 900.
  • the multimedia component 908 includes a screen that provides an output interface between the device 900 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 908 includes a front camera and/or a rear camera. When the device 900 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 910 is configured to output and/or input audio signals.
  • the audio component 910 includes a microphone (MIC).
  • the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 904 or transmitted via the communication component 916.
  • the audio component 910 further includes a speaker for outputting audio signals.
  • the I/O interface 912 provides an interface between the processing component 902 and a peripheral interface module.
  • the above-mentioned peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 914 includes one or more sensors for providing the device 900 with various aspects of state evaluation.
  • the sensor component 914 can detect the on/off status of the device 900 and the relative positioning of components.
  • the component is the display and the keypad of the device 900.
  • the sensor component 914 can also detect the position change of the device 900 or a component of the device 900. , The presence or absence of contact between the user and the device 900, the orientation or acceleration/deceleration of the device 900, and the temperature change of the device 900.
  • the sensor component 914 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 916 is configured to facilitate wired or wireless communication between the device 900 and other devices.
  • the device 900 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 916 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 916 further includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the apparatus 900 may be implemented by one or more application-specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing equipment (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application-specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • non-transitory computer-readable storage medium including instructions, such as the memory 904 including instructions, which can be executed by the processor 920 of the device 900 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • a non-transitory computer-readable storage medium When the instructions in the storage medium are executed by the processor of the mobile terminal, the mobile terminal can execute the above random access method.
  • Fig. 10 is a block diagram showing a random access device 1000 according to an exemplary embodiment.
  • the random access apparatus 1000 may be an access network device.
  • the random access apparatus 1000 may include: a processor 1001, a receiver 1002, a transmitter 1003, and a memory 1004.
  • the receiver 1002, the transmitter 1003 and the memory 1004 are respectively connected to the processor 1001 through a bus.
  • the processor 1001 includes one or more processing cores, and the processor 1001 executes the method executed by the access network device in the random access method provided in the embodiments of the present disclosure by running software programs and modules.
  • the memory 1004 can be used to store software programs and modules. Specifically, the memory 1004 may store an operating system 10041 and an application program module 10042 required by at least one function.
  • the receiver 1002 is used to receive communication data sent by other devices, and the transmitter 1003 is used to send communication data to other devices.
  • Fig. 11 is a block diagram showing a random access system according to an exemplary embodiment. As shown in Fig. 11, the random access system includes an access network device 1101 and a terminal 1102.
  • the access network device 1101 is configured to execute the random access method performed by the access network device in the embodiments shown in FIGS. 2 to 5.
  • the terminal 1102 is configured to execute the random access method executed by the terminal in the embodiments shown in FIGS. 2 to 5.
  • An exemplary embodiment of the present disclosure provides a computer-readable storage medium in which at least one instruction, at least one program, code set, or instruction set is stored, the at least one instruction, the at least one program, The code set or instruction set is loaded and executed by the processor to implement the random access method as described above.

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Abstract

本公开关于一种随机接入方法、装置、系统及存储介质，属于通信技术领域。所述方法包括：终端根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；所述终端获取所述接入网设备发送的随机接入响应消息；若所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同，则根据所述随机接入响应消息中是否包括C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息用于告知所述接入网设备所述终端已接收到所述C-RNTI。本公开可以在节省随机接入过程的步骤的前提下，保证随机接入的流程的完整。

Description

随机接入方法、装置、系统及存储介质 技术领域
本公开涉及通信技术领域，特别涉及一种随机接入方法、装置、系统及存储介质。
背景技术
终端可以通过随机接入方式与接入网设备建立连接，从而通过接入网设备实现与网络之间的通信。
相关技术中，接入网设备向终端广播系统消息；终端根据该系统消息在第一时频资源上向接入网设备发送前导码(消息一)；接入网设备向终端发送msg2(消息二)，该msg2中包括接入网设备监听到的前导码的索引号、指示信息和临时的C-RNTI(Cell Radio Network Temporary Identifier，小区无线网络临时标识)，该指示信息用于指示发送msg3(消息三)的第二时频资源；若msg2中的索引号指示的是终端发送的前导码，则终端使用临时的C-RNTI对msg3进行加扰，并在第二时频资源上发送加扰后的msg3；接入网设备为该终端分配永久的C-RNTI，并向终端发送携带该永久的C-RNTI的msg4(消息四)，终端在根据该msg4确定随机接入成功时，将临时的C-RNTI转换成永久的C-RNTI，并向接入网设备发送确认消息。
为了简化随机接入的步骤，可以对终端发送的消息进行合并，在合并时需要考虑终端如何发送确认消息，以保证随机接入的流程的完整。
发明内容
本公开提供了一种随机接入方法、装置、系统及存储介质，用于解决随机接入过程的步骤较多，导致随机接入的效率较低的技术问题。
根据本公开实施例的一个方面，提供了一种随机接入方法，所述方法包括：
终端根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
所述终端获取所述接入网设备发送的随机接入响应消息；
若所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同，则根据所述随机接入响应消息中是否包括小区-无线网络临时标识C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息用于告知所述接入网设备所述终端已接收到所述C-RNTI。
在一个可选的实施例中，所述根据所述随机接入响应消息中是否包括C-RNTI，确定是否向所述接入网设备发送确认消息，包括：
若所述随机接入响应消息中包括C-RNTI，则所述终端确定向所述接入网设备发送所述确认消息；
若所述随机接入响应消息中未包括C-RNTI，则所述终端确定不向所述接入网设备发送所述确认消息。
在一个可选的实施例中，所述在第二时频资源上发送所述随机接入消息中的负载，包括：
根据所述终端的连接状态确认所述终端是否已存储有C-RNTI；
若所述终端中已存储有所述C-RNTI，则所述终端生成包括所述C-RNTI的第一负载，所述第一负载用于告知所述接入网设备本次不需为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第一负载；
若所述终端中未存储所述C-RNTI，则所述终端生成不包括所述C-RNTI的第二负载，所述第二负载用于告知所述接入网设备本次为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第二负载。
在一个可选的实施例中，所述根据所述终端的连接状态确认所述终端是否已存储有C-RNTI，包括：
若所述终端处于无线资源控制连接状态RRC_connected或无线资源控制非激活状态RRC_inactive，则确定所述终端已存储有所述C-RNTI；
若所述终端处于无线资源控制空闲状态RRC_idle或初始接入状态，则确定所述终端未存储所述C-RNTI。
在一个可选的实施例中，若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则所述终端获取接入网设备发送的随机接入响应消息，包括：
所述终端根据所述C-RNTI对加扰后的物理下行控制信道PDCCH进行解扰；
若对所述加扰后的PDCCH解扰成功，则所述终端根据解扰后的PDCCH上传输的第一指示信息接收所述随机接入响应消息。
在一个可选的实施例中，所述终端获取接入网设备发送的随机接入响应消息，包括：
所述终端根据所述第一时频资源计算随机接入-无线网络临时标识RA-RNTI；
所述终端根据所述RA-RNTI对加扰后的PDCCH进行解扰；
若对所述加扰后的PDCCH解扰成功，则所述终端根据解扰后的PDCCH上传输的第二指示信息接收所述随机接入响应消息。
根据本公开实施例的一个方面，提供了一种随机接入方法，所述方法包括：
接入网设备向终端发送系统消息，所述系统消息用于指示所述终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
所述接入网设备在所述第一时频资源上接收所述前导码，在所述第二时频资源上接收所述负载；
所述接入网设备根据所述负载中是否携带小区-无线网络临时标识C-RNTI生成相应的随机接入响应消息，所述随机接入响应消息中包括第一终端标识，或者，所述随机接入响应消息中包括第一终端标识和所述C-RNTI。
在一个可选的实施例中，所述接入网设备根据所述负载中是否携带C-RNTI生成相应的随机接入响应消息，包括：
若所述随机接入消息中的负载是不包括所述C-RNTI的第二负载，则所述接入网设备为所述终端分配所述C-RNTI，并生成包括所述C-RNTI的第一随机接入响应消息，将所述第一随机接入响应消息作为所述随机接入响应消息；
若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则所述接入网设备生成不包括所述C-RNTI的第二随机接入响应消息，将所述第二随机接入响应消息作为所述随机接入响应消息。
在一个可选的实施例中，若所述负载是包括所述C-RNTI的第一负载，且所述随机接入响应消息是不包括所述C-RNTI的第二随机接入响应消息，则所述方法还包括：
所述接入网设备根据所述C-RNTI对物理下行控制信道PDCCH进行加扰；
所述接入网设备在加扰后的PDCCH上传输第一指示信息，所述第一指示信息用于指示所述终端接收所述随机接入响应消息。
在一个可选的实施例中，所述方法还包括：
所述接入网设备根据所述第一时频资源计算随机接入-无线无线网络临时标识RA-RNTI；
所述接入网设备根据所述RA-RNTI对PDCCH进行加扰；
所述接入网设备在加扰后的PDCCH上传输第二指示信息，所述第二指示信息用于指示所述终端接收所述随机接入响应消息。
根据本公开实施例的一个方面，提供了一种随机接入装置，用于终端中，所述装置包括：
发送模块，被配置为根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
获取模块，被配置为获取所述接入网设备发送的随机接入响应消息；
确定模块，被配置为在所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同时，根据所述随机接入响应消息中是否包括小区-无线网络临时标识C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息用于告知所述接入网设备所述终端已接收到所述C-RNTI。
在一个可选的实施例中，所述确定模块，还被配置为：
若所述随机接入响应消息中包括C-RNTI，则确定向所述接入网设备发送所述确认消息；
若所述随机接入响应消息中包括C-RNTI，则确定不向所述接入网设备发送所述确认消息。
在一个可选的实施例中，所述发送模块，还被配置为：
根据所述终端的连接状态确认所述终端是否已存储有C-RNTI；
在所述终端中已存储有所述C-RNTI时，生成包括所述C-RNTI的第一负载，所述第一负载用于告知所述接入网设备本次不需为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第一负载；
在所述终端中未存储所述C-RNTI时，生成不包括所述C-RNTI的第二负载，所述第二负载用于告知所述接入网设备本次为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第二负载。
在一个可选的实施例中，所述发送模块，还被配置为：
若所述终端处于无线资源控制连接状态RRC_connected或无线资源控制非激活状态RRC_inactive，则确定所述终端已存储有所述C-RNTI；
若所述终端处于无线资源控制空闲状态RRC_idle或初始接入状态，则确定所述终端未存储所述C-RNTI。
在一个可选的实施例中，若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则所述获取模块，还被配置为：
根据所述C-RNTI对加扰后的物理下行控制信道PDCCH进行解扰；
若对所述加扰后的PDCCH解扰成功，则根据解扰后的PDCCH上传输的第一指示信息接收所述随机接入响应消息。
在一个可选的实施例中，所述获取模块，还被配置为：
根据所述第一时频资源计算随机接入-无线网络临时标识RA-RNTI；
根据所述RA-RNTI对加扰后的PDCCH进行解扰；
若对所述加扰后的PDCCH解扰成功，则根据解扰后的PDCCH上传输的第二指示信息接收所述随机接入响应消息。
根据本公开实施例的一个方面，提供了一种随机接入装置，用于接入网设备中，所述装置包括：
发送模块，被配置为向终端发送系统消息，所述系统消息用于指示所述终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
接收模块，被配置为在所述第一时频资源上接收所述前导码，在所述第二时频资源上接收所述负载；
生成模块，被配置为根据所述负载中是否携带小区-无线网络临时标识C-RNTI生成相应的随机接入响应消息，所述随机接入响应消息中包括第一终端标识，或者，所述随机接入响应消息中包括第一终端标识和所述C-RNTI。
在一个可选的实施例中，所述生成模块，还被配置为：
若所述随机接入消息中的负载是不包括所述C-RNTI的第二负载，则为所述终端分配所述C-RNTI，并生成包括所述C-RNTI的第一随机接入响应消息，将所述第一随机接入响应消息作为所述随机接入响应消息；
若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则生成不包括所述C-RNTI的第二随机接入响应消息，将所述第二随机接入响应消息作为所 述随机接入响应消息。
在一个可选的实施例中，若所述负载是包括所述C-RNTI的第一负载，则所述装置还包括：
第一加扰模块，被配置为根据所述C-RNTI对物理下行控制信道PDCCH进行加扰；
第一传输模块，被配置为在所述第一加扰模块加扰后的PDCCH上传输第一指示信息，所述第一指示信息用于指示所述终端接收所述随机接入响应消息。
在一个可选的实施例中，所述装置还包括：
计算模块，被配置为根据所述第一时频资源计算随机接入-无线无线网络临时标识RA-RNTI；
第二加扰模块，被配置为根据所述计算模块得到的所述RA-RNTI对PDCCH进行加扰；
第二传输模块，被配置为在所述第二加扰模块加扰后的PDCCH上传输第二指示信息，所述第二指示信息用于指示所述终端接收所述随机接入响应消息。
根据本公开实施例的一个方面，提供一种终端，所述终端包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
获取所述接入网设备发送的随机接入响应消息；
若所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同，则根据所述随机接入响应消息中是否包括小区-无线网络临时标识C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息用于告知所述接入网设备所述终端已接收到所述C-RNTI。
根据本公开实施例的一个方面，提供一种接入网设备，所述接入网设备包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
向终端发送系统消息，所述系统消息用于指示所述终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
在所述第一时频资源上接收所述前导码，在所述第二时频资源上接收所述负载；
根据所述负载中是否携带小区-无线网络临时标识C-RNTI生成相应的随机接入响应消息，所述随机接入响应消息中包括第一终端标识，或者，所述随机接入响应消息中包括第一终端标识和所述C-RNTI。
根据本公开实施例的一个方面，提供一种随机接入系统，包括如上所述的随机接入装置和如上所述的随机接入装置，或者，包括如上所述的终端和如上所述的接入网设备。
根据本公开实施例的一个方面，提供一种计算机可读存储介质，所述存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如上所述的随机接入方法，或者，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如上所述的随机接入方法。
本公开的实施例提供的技术方案可以包括以下有益效果：
由于终端可以根据系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载，从而可以实现对终端发送的消息进行合并。然后，终端可以接收随机接入响应消息，在确定该随机接入响应消息中的第一终端标识与终端的第二终端标识相同时，根据随机接入相应消息中是否包括C-RNTI来确定是否发送确认消息，从而可以保证随机接入的流程的完整性。
附图说明
此处的附图被并入说明书中并构成本公开说明书的一部分，示出了符合本 公开的实施例，并与说明书一起用于解释本公开的原理。
图1是本公开各个实施例涉及的实施环境的示意图。
图2是根据一示例性实施例示出的一种随机接入方法的流程图。
图3是根据一示例性实施例示出的一种随机接入方法的流程图。
图4是根据相关技术示出的一种随机接入方法的流程图。
图5是根据一示例性实施例示出的一种随机接入方法的流程图。
图6是根据一示例性实施例示出的一种随机接入装置的框图。
图7是根据一示例性实施例示出的一种随机接入装置的框图。
图8是根据一示例性实施例示出的一种随机接入装置的框图。
图9是根据一示例性实施例示出的一种用于随机接入的装置的框图。
图10是根据一示例性实施例示出的一种随机接入装置的框图。
图11是根据一示例性实施例示出的一种随机接入系统的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
图1示出了本公开一个实施例提供的移动通信系统的结构示意图。该移动通信系统可以是5G系统，又称NR(New Radio，新空口)系统。该移动通信系统包括：接入网设备101和终端102。
接入网设备101可以是基站，本申请实施例对接入网设备101的具体实现方式不加以限定。可选地，接入网设备101还可以包括家庭基站(Home eNB，HeNB)、中继(Relay)、微微基站Pico等。
接入网设备101和终端102通过无线空口建立无线连接。可选地，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口(New Radio，NR)；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
终端102可以是指向用户提供语音和/或数据连通性的设备。终端102可以 经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端102可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如，订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户装置(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户终端(User Equipment)。
需要说明的是，在图1所示的移动通信系统中，可以包括多个接入网设备101和/或多个终端102，图1中以示出一个接入网设备101和一个终端102来举例说明，但本实施例对此不作限定。
图2是根据一示例性实施例示出的一种随机接入方法的流程图，该随机接入方法应用于图1所示的实施环境中，如图2所示，该随机接入方法包括以下步骤。
在步骤201中，接入网设备向终端发送系统消息。
在步骤202中，终端根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载。
在步骤203中，接入网设备在第一时频资源上接收前导码，在第二时频资源上接收负载。
在步骤204中，接入网设备根据负载中是否携带C-RNTI生成相应的随机接入响应消息，该随机接入响应消息中包括第一终端标识，或者，该随机接入响应消息中包括第一终端标识和C-RNTI。
在步骤205中，终端获取接入网设备发送的随机接入响应消息。
在步骤206中，若随机接入响应消息中的第一终端标识与终端的第二终端标识相同，则根据随机接入响应消息中是否包括C-RNTI，确定是否向接入网设备发送确认消息，该确认消息用于告知接入网设备该终端已接收到C-RNTI。
其中，步骤201和203-204可以单独实现成为接入网设备侧的实施例，步骤202和205-206可以单独实现成为终端侧的实施例。
综上所述，本公开提供的随机接入方法，由于终端可以根据系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接 入消息中的负载，从而可以实现对终端发送的消息进行合并。然后，终端可以接收随机接入响应消息，在确定该随机接入响应消息中的第一终端标识与终端的第二终端标识相同时，根据随机接入响应消息中是否包括C-RNTI来确定是否发送确认消息，从而可以保证随机接入的流程的完整性。
图3是根据另一示例性实施例示出的一种随机接入方法的流程图，该随机接入方法应用于图1所示的实施环境中，如图3所示，该随机接入方法包括如下步骤。
在步骤301中，接入网设备向终端发送系统消息。
本实施例中，系统消息用于指示终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载。下面先对系统消息的内容进行介绍。
在一个可选的实施例中，系统消息可以包括SSB(Synchronization Signal Block，同步信息块)，该SSB中包括PSS(Primary Synchronization Signal，主同步信号)和SSS(Secondary Synchronization Signal，辅同步信号)，该PSS和SSS用于使终端与接入网设备进行下行同步。
在一个可选的实施例中，系统消息可以包括第一资源指示信息和第二资源指示信息。其中，第一资源指示信息用于向终端指示发送随机接入消息中的前导码的第一时频资源，第二资源指示信息用于向终端指示发送随机接入消息中的负载的第二时频资源。
接入网设备可以按照预定算法确定第一时频资源和第二时频资源。其中，第一时频资源中的频域资源和第二时频资源中的频域资源可以相同，也可以不同，本实施例不作限定。其中，第一时频资源中的时域资源和第二时频资源中的时域资源不同。在一个可选的实施例中，第一时频资源中的时域资源和第二时频资源中的时域资源之间不连续。即，随机接入消息中的前导码和负载是分开发送的。其中，第二时频资源中的时域资源在第一时频资源中的时域资源之后，即，终端先发送随机接入消息中的前导码，再发送随机接入消息中的负载。
本实施例中，随机接入消息的作用是使终端随机接入网络。其中，随机接入消息可以包括前导码和负载。当然，随机接入消息还可以包括其他信息，也不可以不包括其他信息，本实施例不作限定。
前导码用于随机接入时识别终端的身份。若终端中未存储接入网设备的前 导码，接入网设备还可以将前导码携带在系统消息中发送给终端，则系统消息中还包括前导码。若终端中存储有接入网设备的前导码，则系统消息中可以不包括前导码。其中，当终端通过竞争机制接入接入网设备时，系统消息中携带的是前导码序列，每个前导码是被用于基于竞争机制接入的前导码。
负载也可以称为payload，用于发送与RRC(Radio Resource Control，无线资源控制)相关的信息。在不同的应用场景中，负载中的内容可能不同。比如，在终端处于待上行同步状态或待发送请求上行链路的调度信令状态时，负载可能包括RRC连接请求恢复(RRC Connection Resume/re-establishment)，其中可以包含创建原因(establishmentCause)：终端处于待上行同步状态(也称上行失步状态)，需要重新接入网络，或者，上层有数据需要传输及其大小，而网络侧没有配置上行传输资源及可能包含网络侧分配给终端的C-RNTI。又比如，在终端处于初始随机接入状态时，负载可能包括RRC连接请求(RRC Connection Request)，其中可以包含初始UE标识(Initial UE Identity)和创建原因：emergency，highPriorityAccess，mt-Access，mo-Signalling，mo-Data，mo-VoiceCall，mo-VideoCall，mo-SMS，mps-PriorityAccess，mcs-PriorityAccess。
在一个可选的实施方式中，系统消息可以包括第一MCS(Modulation and Coding Scheme，调制与编码策略)信息和第二MCS信息，该第一MCS信息用于指示前导码的传输速率，该第二MCS信息用于指示负载的传输速率。可选的，第一MCS信息和第二MCS信息可以是索引，用于指示速率表中的一组传输参数。其中，第一MCS信息的数值和第二MCS信息的数值可以相同，也可以不同，本实施例不作限定。
在步骤302中，终端根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载。
终端可以从系统消息中读取第一资源指示信息，根据该第一资源指示信息确定第一时频资源；终端还可以确定待发送的前导码，在该第一时频资源上发送该前导码。在一个可选的实施例中，由于系统消息中还包括第一MCS信息，所以，终端可以根据第一MCS信息在第一时频资源上发送前导码。即，终端可以根据第一MCS信息在速率表中查找对应的一组传输参数，再根据该传输参数在第一时频资源上发送前导码。
终端可以从系统消息中读取第二资源指示信息，根据该第二资源指示信息确定第二时频资源；终端还可以生成随机接入消息中的负载，在该第二时频资 源上发送该负载。下面对随机接入消息中的负载的发送方式进行介绍。
本实施例中，终端根据连接状态确认终端是否已存储有C-RNTI；若终端中已存储有C-RNTI，则终端生成包括该C-RNTI的第一负载，该第一负载用于告知接入网设备本次不需为终端分配C-RNTI，在第二时频资源上发送随机接入消息中的第一负载；若终端中未存储C-RNTI，则终端生成不包括C-RNTI的第二负载，该第二负载用于告知接入网设备本次为终端分配C-RNTI，在第二时频资源上发送随机接入消息中的第二负载。
当终端处于RRC_connected状态或RRC_inactive状态时，说明终端之前已经与接入网设备进行过RRC连接，所以，终端中已存储有接入网设备为终端分配的C-RNTI。由于终端与接入网设备后续的交互会用到C-RNTI，所以，当终端中已经存储有该C-RNTI时，终端可以将该C-RNTI携带在第一负载中发送给接入网设备，这样，接入网设备在确定第一负载中包括C-RNTI时，不需要重新为终端分配C-RNTI，后续基于该C-RNTI与终端进行交互即可。
当终端处于RRC_idle状态或初始接入状态时，说明终端之前没有与接入网设备进行过RRC连接，所以，终端中未存储接入网设备为终端分配的C-RNTI，则终端生成不包括C-RNTI的第二负载，这样，接入网设备在确定第二负载中不包括C-RNTI时，需要为终端分配C-RNTI，后续基于该分配的C-RNTI与终端进行交互。
在终端生成负载(即第一负载或第二负载)后，终端可以根据第一时频资源计算RA-RNTI(Random Access-Radio Network Temporary Identifier，随机接入-无线无线网络临时标识)，根据RA-RNTI对接入消息中的负载进行加扰，并在第二时频资源上发送加扰后的负载。
在一个可选的实施例中，系统消息中还包括第二MCS信息，所以，终端可以根据第二MCS信息在第二时频资源上发送加扰后的负载。即，终端可以根据第二MCS信息在速率表中查找对应的一组传输参数，再根据该传输参数在第二时频资源上发送加扰后的负载。
在步骤303中，接入网设备在第一时频资源上接收前导码，在第二时频资源上接收负载。
在一个可选的实施例中，若终端根据第一MCS信息在第一时频资源上发送了前导码，则接入网设备可以根据第一MCS信息在第一时频资源上接收前导码。即，接入网设备可以根据第一MCS信息在速率表中查找对应的一组传输参数， 再根据该传输参数在第一时频资源上接收前导码。
在一个可选的实施例中，若终端根据第二MCS信息在第二时频资源上发送了加扰后的负载，则接入网设备可以根据第二MCS信息在第二时频资源上接收加扰后的负载。即，接入网设备可以根据第二MCS信息在速率表中查找对应的一组传输参数，再根据该传输参数在第二时频资源上接收加扰后的负载。
在接收到加扰后的负载后，接入网设备根据第一时频资源计算RA-RNTI，再根据RA-RNTI对加扰后的负载进行解扰，得到接入网消息中的负载，该负载为第一负载或第二负载。
在步骤304中，接入网设备根据负载中是否携带C-RNTI生成相应的随机接入响应消息，该随机接入响应消息中包括第一终端标识，或者，该随机接入响应中包括第一终端标识和C-RNTI。
在接入网设备接收到一个终端发送的前导码和负载后，接入网设备可以确定该负载是第一负载还是第二负载。若该负载是不包括C-RNTI的第二负载，则接入网设备为终端分配C-RNTI，并生成包括C-RNTI的第一随机接入响应消息，将第一随机接入响应消息作为随机接入响应消息。若该负载是包括C-RNTI的第一负载，则接入网设备生成不包括C-RNTI的第二随机接入响应消息，将第二随机接入响应消息作为随机接入响应消息。
需要说明的是，接入网设备还可以获取终端的第一终端标识和UL Grant(上行调度授权)，那么，当负载是第二负载时，随机接入响应消息包括第一终端标识、UL Grant和C-RNTI；当负载是第一负载时，随机接入响应消息包括第一终端标识和UL Grant。当然，随机接入响应消息还可以包括其他信息，也可以不包括其他信息，本实施例不作限定。
在步骤305中，接入网设备向终端发送随机接入响应消息。
随机接入响应消息的发送方式有很多种，下面对其中的两种发送方式进行介绍。
在第一种发送方式中，若负载是包括C-RNTI的第一负载，则接入网设备根据C-RNTI对PDCCH(Physical Downlink Control Channel，物理下行控制信道)进行加扰；接入网设备在加扰后的PDCCH上传输第一指示信息，该第一指示信息用于指示终端接收随机接入响应消息。
其中，第一指示信息可以是DCI(Downlink Control Information，下行控制信息)，用于指示终端在相应的时频资源位置解调PDSCH(Physical Downlink  Shared Channel，物理下行共享信道)上传输的随机接入响应消息，该随机接入响应消息是第二随机接入响应消息。
对PDCCH进行加扰是指利用C-RNTI对PDCCH上传输的DCI的CRC(Cyclic Redundancy Check，循环冗余校验)进行加扰。
需要说明的是，当接入网设备根据C-RNTI对PDCCH进行加扰时，随机接入响应消息中也可以不包括第一终端标识。
在第二种发送方式中，接入网设备根据第一时频资源计算RA-RNTI；接入网设备根据RA-RNTI对PDCCH进行加扰；接入网设备在加扰后的PDCCH上传输第二指示信息，第二指示信息用于指示终端接收随机接入响应消息。
其中，第二指示信息可以是DCI，详见第一种发送方式中的描述，此处不再赘述。
需要说明的是，第一种发送方式要求负载包括C-RNTI，而第二种发送方式不要求负载包括C-RNTI，即，无论接入网设备发送的是包括C-RNTI的第一随机接入响应消息，还是不包括C-RNTI的第二随机接入响应消息，接入网设备都可以采用第二种发送方式来发送随机接入响应消息。
在步骤306中，终端获取接入网设备发送的随机接入响应消息。
对应于上述第一种发送方式，在第一种接收方式中，若随机接入消息中的负载是包括C-RNTI的第一负载，则终端根据C-RNTI对加扰后的PDCCH进行解扰；若对加扰后的PDCCH解扰成功，则终端根据解扰后的PDCCH上传输的第一指示信息接收随机接入响应消息。
若终端中已存储有C-RNTI，则终端可以利用C-RNTI对加扰后的PDCCH上传输的DCI中的CRC进行解扰；若对CRC解扰成功，则确定对加扰后的PDCCH解扰成功，根据DCI的指示在相应的时频资源位置解调PDSCH上传输的随机接入响应消息，该随机接入响应消息是第二随机接入响应消息。若对CRC解扰失败，则确定对加扰后的PDCCH解扰失败，终端确定随机接入失败，重新发起随机接入。
对应于上述第二种发送方式，在第二种接收方式中，终端根据第一时频资源计算RA-RNTI；终端根据RA-RNTI对加扰后的PDCCH进行解扰；若对加扰后的PDCCH解扰成功，则终端根据解扰后的PDCCH上传输的第二指示信息接收随机接入响应消息。
终端可以利用RA-RNTI对加扰后的PDCCH上传输的DCI中的CRC进行 解扰；若对CRC解扰成功，则确定对加扰后的PDCCH解扰成功，根据DCI的指示在相应的时频资源位置解调PDSCH上传输的随机接入响应消息。若对CRC解扰失败，则确定对加扰后的PDCCH解扰失败，终端确定随机接入失败，重新发起随机接入。
在步骤307中，若随机接入响应消息中的第一终端标识与终端的第二终端标识相同，且随机接入响应消息中包括C-RNTI，则终端确定向接入网设备发送确认消息。
终端在接收到随机接入响应消息后，可以读取该随机接入响应消息中的第一终端标识，比较该第一终端标识与终端自身的第二终端标识是否相同。若第一终端标识与第二终端标识相同，则终端确定本次随机接入成功；若第一终端标识与第二终端标识不同，则终端确定本次随机接入失败，重新发起随机接入。
本实施例中，终端在确定第一终端标识与第二终端标识相同时，还需要确定是否需要向接入网设备发送确认消息。即，若随机接入响应消息中包括C-RNTI，则终端确定向接入网设备发送确认消息；若随机接入响应消息中未包括C-RNTI，则终端确定不向接入网设备发送确认消息。
可选的，终端还可以通过以下两种确定方式中的任意一种来确定是否需要向接入网设备发送确认消息。
在第一种确定方式中，若随机接入消息中的负载是不包括C-RNTI的第二负载，则终端确定随机接入响应消息中包括C-RNTI，需要向接入网设备发送确认消息；若随机接入消息中的负载是包括C-RNTI的第一负载，则终端确定随机接入响应消息中未包括C-RNTI，不向接入网设备发送确认消息。
在第二种确定方式中，若根据C-RNTI对加扰后的PDCCH解扰成功，则终端确定随机接入响应消息中未包括C-RNTI，不向接入网设备发送确认消息。
在步骤308中，若随机接入响应消息中的第一终端标识与终端的第二终端标识相同，且随机接入响应消息中未包括C-RNTI，则终端确定不向接入网设备发送确认消息，流程结束。
若随机接入响应消息中未包括C-RNTI，则说明终端中已存储有C-RNTI，后续可以基于该C-RNTI与终端进行交互。
其中，步骤301和303-305可以单独实现成为接入网设备侧的实施例，步骤302、306-307可以单独实现成为终端侧的实施例；或者，步骤301和303-305可以单独实现成为接入网设备侧的实施例，步骤302、306和308可以单独实现 成为终端侧的实施例。
综上所述，本公开提供的随机接入方法，由于终端可以根据系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载，从而可以实现对终端发送的消息进行合并。然后，终端可以接收随机接入响应消息，在确定该随机接入响应消息中的第一终端标识与终端的第二终端标识相同时，根据随机接入响应消息中是否包括C-RNTI来确定是否发送确认消息，从而可以保证随机接入的流程的完整性。
当多个终端处于RRC_connected状态或RRC_inactive状态，且这些终端在相同的第一时频资源上发送相同的前导码时，可以利用C-RNTI来区分不同的终端，这样，可以解决这些终端在随机接入过程中产生的冲突。
下面对相关技术和本实施例的随机接入流程进行说明，图4示出的是相关技术中的随机接入流程，图5示出的是本实施例的随机接入流程。
相关技术中的随机接入流程如下：
在步骤401中，接入网设备向终端发送系统消息(第一指示信息)。
在步骤402中，终端在第一指示信息指示的第一时频资源上向接入网设备发送msg1(前导码)。
在步骤403中，接入网设备向终端发送msg2(第二指示信息)。
在步骤404中，终端在第二指示信息指示的第二时频资源上向接入网设备发送msg3。
在步骤405中，接入网设备向终端发送msg4。
在步骤406中，终端根据Mag4中是否包括C-RNTI，确定是否向接入网设备发送确认消息。
本实施例的随机接入流程如下：
在步骤501中，接入网设备向终端发送系统消息(第一指示信息+第二指示信息)。
在步骤502中，终端在第一指示信息指示的第一时频资源上向接入网设备发送前导码。
在步骤503中，终端在第二指示信息指示的第二时频资源上向接入网设备发送负载。
在步骤504中，接入网设备向终端发送随机接入响应消息。
在步骤505中，终端根据随机接入响应消息中是否包括C-RNTI，确定是否向接入网设备发送确认消息。
图6是根据一示例性实施例示出的一种随机接入装置的框图，该随机接入装置应用于图1所示的终端102中，如图6所示，该随机接入装置包括：发送610、获取模块620和确定模块630；
该发送模块610，被配置为根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载；
该获取模块620，被配置为获取接入网设备发送的随机接入响应消息；
该确定模块630，被配置为在随机接入响应消息中的第一终端标识与终端的第二终端标识相同时，根据随机接入响应消息中是否包括C-RNTI，确定是否向接入网设备发送确认消息，确认消息用于告知接入网设备该终端已接收到C-RNTI。
在一个可选的实施例中，该确定模块630，还被配置为：
若随机接入响应消息中包括C-RNTI，则确定向接入网设备发送确认消息；
若随机接入响应消息中未包括C-RNTI，则确定不向接入网设备发送确认消息。
在一个可选的实施例中，该发送模块610，还被配置为；
根据所述终端的连接状态确认所述终端是否已存储有C-RNTI；
在终端中已存储C-RNTI时，生成包括C-RNTI的第一负载，第一负载用于告知接入网设备本次不需为终端分配C-RNTI，在第二时频资源上发送随机接入消息中的第一负载；
在终端中未存储C-RNTI时，生成不包括C-RNTI的第二负载，第二负载用于告知接入网设备本次为终端分配C-RNTI，在第二时频资源上发送随机接入消息中的第二负载。
在一个可选的实施例中，该发送模块610，还被配置为：
若终端处于RRC_connected或RRC_inactive，则确定终端已存储有C-RNTI；
若终端处于RRC_idle或初始接入状态，则确定终端未存储C-RNTI。
在一个可选的实施例中，若随机接入消息中的负载是包括C-RNTI的第一负 载，则该获取模块620，还被配置为：
根据C-RNTI对加扰后的PDCCH进行解扰；
若对加扰后的PDCCH解扰成功，则根据解扰后的PDCCH上传输的第一指示信息接收随机接入响应消息。
在一个可选的实施例中，该获取模块620，还被配置为：
根据第一时频资源计算RA-RNTI；
根据RA-RNTI对加扰后的PDCCH进行解扰；
若对加扰后的PDCCH解扰成功，则根据解扰后的PDCCH上传输的第二指示信息接收随机接入响应消息。
综上所述，本公开提供的随机接入装置，由于终端可以根据系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载，从而可以实现对终端发送的消息进行合并。然后，终端可以接收随机接入响应消息，在确定该随机接入响应消息中的第一终端标识与终端的第二终端标识相同时，根据随机接入响应消息中是否包括C-RNTI来确定是否发送确认消息，从而可以保证随机接入的流程的完整性。
当多个终端处于RRC_connected状态或RRC_inactive状态，且这些终端在相同的第一时频资源上发送相同的前导码时，可以利用C-RNTI来区分不同的终端，这样，可以解决这些终端在随机接入过程中产生的冲突。
图7是根据一示例性实施例示出的一种随机接入装置的框图，该随机接入装置应用于图1所示的接入网设备101中，如图7所示，该随机接入装置包括：发送模块710、接收模块720和生成模块730；
该发送模块710，被配置为向终端发送系统消息，系统消息用于指示终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载；
该接收模块720，被配置为在第一时频资源上接收前导码，在第二时频资源上接收负载；
该生成模块730，被配置为根据负载中是否携带C-RNTI生成相应的随机接入响应消息，随机接入响应消息中包括第一终端标识，或者，随机接入响应消息中包括第一终端标识和C-RNTI7。
在一个可选的实施例中，该生成模块730，还被配置为：
若随机接入消息中的负载是不包括C-RNTI的第二负载，则为终端分配C-RNTI，并生成包括C-RNTI的第一随机接入响应消息，将第一随机接入响应消息作为随机接入响应消息；
若随机接入消息中的负载是包括C-RNTI的第一负载，则生成不包括C-RNTI的第二随机接入响应消息，将第二随机接入响应消息作为随机接入响应消息。
请参考图8，在一个可选的实施例中，若负载是包括C-RNTI的第一负载，则所该装置还包括：第一加扰模块740和第一传输模块750；
该第一加扰模块740，被配置为根据C-RNTI对PDCCH进行加扰；
该第一传输模块750，被配置为在第一加扰模块加扰后的PDCCH上传输第一指示信息，第一指示信息用于指示终端接收随机接入响应消息。
在一个可选的实施例中，该装置还包括：计算模块760、第二加扰模块770和第二传输模块780；
该计算模块760，被配置为根据第一时频资源计算RA-RNTI；
该第二加扰模块770，被配置为根据计算模块得到的RA-RNTI对PDCCH进行加扰；
该第二传输模块780，被配置为在第二加扰模块加扰后的PDCCH上传输第二指示信息，第二指示信息用于指示终端接收随机接入响应消息。
综上所述，本公开提供的随机接入装置，由于接入网设备可以向终端发送系统消息，并在第一时频资源上接收随机接入消息中的前导码，在第二时频资源上接收随机接入消息中的负载，从而可以实现对终端发送的消息进行合并。然后，接入网设备向终端发送随机接入响应消息，在终端确定该随机接入响应消息中的第一终端标识与终端的第二终端标识相同时，根据随机接入响应消息中是否包括C-RNTI来确定是否发送确认消息，从而可以保证随机接入的流程的完整性。
当多个终端处于RRC_connected状态或RRC_inactive状态，且这些终端在相同的第一时频资源上发送相同的前导码时，可以利用C-RNTI来区分不同的终端，这样，可以解决这些终端在随机接入过程中产生的冲突。
本公开一示例性实施例提供了一种终端，能够实现本公开提供的随机接入方法，该终端包括：处理器、用于存储处理器可执行信令的存储器；
其中，处理器被配置为：
根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载；
获取接入网设备发送的随机接入响应消息；
若随机接入响应消息中的第一终端标识与终端的第二终端标识相同，则根据随机接入响应消息中是否包括C-RNTI，确定是否向接入网设备发送确认消息，确认消息用于告知接入网设备该终端已接收到C-RNTI。
本公开一示例性实施例提供了一种接入网设备，能够实现本公开提供的随机接入方法，该接入网设备包括：处理器、用于存储处理器可执行信令的存储器；
其中，处理器被配置为：
向终端发送系统消息，系统消息用于指示终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送随机接入消息中的负载；
在第一时频资源上接收前导码，在第二时频资源上接收负载；
根据负载中是否携带C-RNTI生成相应的随机接入响应消息，随机接入响应消息中包括第一终端标识，或者，随机接入响应消息中包括第一终端标识和C-RNTI。
图9是根据一示例性实施例示出的一种用于随机接入的装置900的框图。例如，装置900可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图9，装置900可以包括以下一个或多个组件：处理组件902，存储器904，电源组件906，多媒体组件908，音频组件910，输入/输出(I/O)的接口912，传感器组件914，以及通信组件916。
处理组件902通常控制装置900的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理元件902可以包括一个或多个处理器920来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件902可以包括一个或多个模块，便于处理组件902和其他组件之间的交互。例如，处理部件902可以包括多媒体模块，以方便多媒体组件908和处理组件902之间的交互。
存储器904被配置为存储各种类型的数据以支持在设备900的操作。这些数据的示例包括用于在装置900上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器904可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件906为装置900的各种组件提供电力。电力组件906可以包括电源管理系统，一个或多个电源，及其他与为装置900生成、管理和分配电力相关联的组件。
多媒体组件908包括在所述装置900和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件908包括一个前置摄像头和/或后置摄像头。当设备900处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件910被配置为输出和/或输入音频信号。例如，音频组件910包括一个麦克风(MIC)，当装置900处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器904或经由通信组件916发送。在一些实施例中，音频组件910还包括一个扬声器，用于输出音频信号。
I/O接口912为处理组件902和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件914包括一个或多个传感器，用于为装置900提供各个方面的状态评估。例如，传感器组件914可以检测到设备900的打开/关闭状态，组件的相对定位，例如所述组件为装置900的显示器和小键盘，传感器组件914还 可以检测装置900或装置900一个组件的位置改变，用户与装置900接触的存在或不存在，装置900方位或加速/减速和装置900的温度变化。传感器组件914可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件914还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件914还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件916被配置为便于装置900和其他设备之间有线或无线方式的通信。装置900可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信部件916经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信部件916还包括近场通信(NFC)模块，以促进短程通信。
在示例性实施例中，装置900可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器904，上述指令可由装置900的处理器920执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行上述随机接入方法。
图10是根据一示例性实施例示出的一种随机接入装置1000的框图。例如，随机接入装置1000可以是接入网设备。如图10所示，随机接入装置1000可以包括：处理器1001、接收机1002、发射机1003和存储器1004。接收机1002、发射机1003和存储器1004分别通过总线与处理器1001连接。
其中，处理器1001包括一个或者一个以上处理核心，处理器1001通过运行软件程序以及模块以执行本公开实施例提供的随机接入方法中接入网设备所执行的方法。存储器1004可用于存储软件程序以及模块。具体的，存储器1004可存储操作系统10041、至少一个功能所需的应用程序模块10042。接收机1002用于接收其他设备发送的通信数据，发射机1003用于向其他设备发送通信数据。
图11是根据一示例性实施例示出的一种随机接入系统的框图，如图11所示，该随机接入系统包括接入网设备1101和终端1102。
接入网设备1101用于执行图2至5所示实施例中接入网设备所执行的随机接入方法。
终端1102用于执行图2至5所示实施例中终端所执行的随机接入方法。
本公开一示例性实施例提供了一种计算机可读存储介质，所述存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如上所述的随机接入方法。
本领域技术人员在考虑说明书及实践这里的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (24)

  1. 一种随机接入方法，其特征在于，所述方法包括：
    终端根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
    所述终端获取所述接入网设备发送的随机接入响应消息；
    若所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同，则根据所述随机接入响应消息中是否包括小区-无线网络临时标识C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息用于告知所述接入网设备所述终端已接收到所述C-RNTI。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述随机接入响应消息中是否包括C-RNTI，确定是否向所述接入网设备发送确认消息，包括：
    若所述随机接入响应消息中包括C-RNTI，则所述终端确定向所述接入网设备发送所述确认消息；
    若所述随机接入响应消息中未包括所述C-RNTI，则所述终端确定不向所述接入网设备发送所述确认消息。
  3. 根据权利要求1所述的方法，其特征在于，所述在第二时频资源上发送所述随机接入消息中的负载，包括：
    根据所述终端的连接状态确认所述终端是否已存储有C-RNTI；
    若所述终端中已存储有所述C-RNTI，则所述终端生成包括所述C-RNTI的第一负载，所述第一负载用于告知所述接入网设备本次不需为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第一负载；
    若所述终端中未存储所述C-RNTI，则所述终端生成不包括所述C-RNTI的第二负载，所述第二负载用于告知所述接入网设备本次为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第二负载。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述终端的连接状态确认所述终端是否已存储有C-RNTI，包括：
    若所述终端处于无线资源控制连接状态RRC_connected或无线资源控制非 激活状态RRC_inactive，则确定所述终端已存储有所述C-RNTI；
    若所述终端处于无线资源控制空闲状态RRC_idle或初始接入状态，则确定所述终端未存储所述C-RNTI。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则所述终端获取接入网设备发送的随机接入响应消息，包括：
    所述终端根据所述C-RNTI对加扰后的物理下行控制信道PDCCH进行解扰；
    若对所述加扰后的PDCCH解扰成功，则所述终端根据解扰后的PDCCH上传输的第一指示信息接收所述随机接入响应消息。
  6. 根据权利要求1至4任一项所述的方法，其特征在于，所述终端获取接入网设备发送的随机接入响应消息，包括：
    所述终端根据所述第一时频资源计算随机接入-无线网络临时标识RA-RNTI；
    所述终端根据所述RA-RNTI对加扰后的PDCCH进行解扰；
    若对所述加扰后的PDCCH解扰成功，则所述终端根据解扰后的PDCCH上传输的第二指示信息接收所述随机接入响应消息。
  7. 一种随机接入方法，其特征在于，所述方法包括：
    接入网设备向终端发送系统消息，所述系统消息用于指示所述终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
    所述接入网设备在所述第一时频资源上接收所述前导码，在所述第二时频资源上接收所述负载；
    所述接入网设备根据所述负载中是否携带小区-无线网络临时标识C-RNTI生成相应的随机接入响应消息，所述随机接入响应消息中包括第一终端标识，或者，所述随机接入响应消息中包括第一终端标识和所述C-RNTI。
  8. 根据权利要求7所述的方法，其特征在于，所述接入网设备根据所述负载中是否携带C-RNTI生成相应的随机接入响应消息，包括：
    若所述随机接入消息中的负载是不包括所述C-RNTI的第二负载，则所述接入网设备为所述终端分配所述C-RNTI，并生成包括所述C-RNTI的第一随机接入响应消息，将所述第一随机接入响应消息作为所述随机接入响应消息；
    若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则所述接入网设备生成不包括所述C-RNTI的第二随机接入响应消息，将所述第二随机接入响应消息作为所述随机接入响应消息。
  9. 根据权利要求7或8所述的方法，其特征在于，若所述负载是包括所述C-RNTI的第一负载，则所述方法还包括：
    所述接入网设备根据所述C-RNTI对物理下行控制信道PDCCH进行加扰；
    所述接入网设备在加扰后的PDCCH上传输第一指示信息，所述第一指示信息用于指示所述终端接收所述随机接入响应消息。
  10. 根据权利要求7或8所述的方法，其特征在于，所述方法还包括：
    所述接入网设备根据所述第一时频资源计算随机接入-无线无线网络临时标识RA-RNTI；
    所述接入网设备根据所述RA-RNTI对PDCCH进行加扰；
    所述接入网设备在加扰后的PDCCH上传输第二指示信息，所述第二指示信息用于指示所述终端接收所述随机接入响应消息。
  11. 一种随机接入装置，其特征在于，用于终端中，所述装置包括：
    发送模块，被配置为根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
    获取模块，被配置为获取所述接入网设备发送的随机接入响应消息；
    确定模块，被配置为在所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同时，根据所述随机接入响应消息中是否包括小区-无线网络临时标识C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息 用于告知所述接入网设备所述终端已接收到所述C-RNTI。
  12. 根据权利要求11所述的装置，其特征在于，所述确定模块，还被配置为：
    若所述随机接入响应消息中包括C-RNTI，则确定向所述接入网设备发送所述确认消息；
    若所述随机接入响应消息中未包括C-RNTI，则确定不向所述接入网设备发送所述确认消息。
  13. 根据权利要求11所述的装置，其特征在于，所述发送模块，还被配置为：
    根据所述终端的连接状态确认所述终端是否已存储有C-RNTI；
    在所述终端中已存储有所述C-RNTI时，生成包括所述C-RNTI的第一负载，所述第一负载用于告知所述接入网设备本次不需为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第一负载；
    在所述终端中未存储所述C-RNTI时，生成不包括所述C-RNTI的第二负载，所述第二负载用于告知所述接入网设备本次为所述终端分配所述C-RNTI，在所述第二时频资源上发送所述随机接入消息中的第二负载。
  14. 根据权利要求13所述的装置，其特征在于，所述发送模块，还被配置为：
    若所述终端处于无线资源控制连接状态RRC_connected或无线资源控制非激活状态RRC_inactive，则确定所述终端已存储有所述C-RNTI；
    若所述终端处于无线资源控制空闲状态RRC_idle或初始接入状态，则确定所述终端未存储所述C-RNTI。
  15. 根据权利要求11至14任一项所述的装置，其特征在于，若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则所述获取模块，还被配置为：
    根据所述C-RNTI对加扰后的物理下行控制信道PDCCH进行解扰；
    若对所述加扰后的PDCCH解扰成功，则根据解扰后的PDCCH上传输的第一指示信息接收所述随机接入响应消息。
  16. 根据权利要求11至14任一项所述的装置，其特征在于，所述获取模块，还被配置为：
    根据所述第一时频资源计算随机接入-无线网络临时标识RA-RNTI；
    根据所述RA-RNTI对加扰后的PDCCH进行解扰；
    若对所述加扰后的PDCCH解扰成功，则根据解扰后的PDCCH上传输的第二指示信息接收所述随机接入响应消息。
  17. 一种随机接入装置，其特征在于，用于接入网设备中，所述装置包括：
    发送模块，被配置为向终端发送系统消息，所述系统消息用于指示所述终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
    接收模块，被配置为在所述第一时频资源上接收所述前导码，在所述第二时频资源上接收所述负载；
    生成模块，被配置为根据所述负载中是否携带小区-无线网络临时标识C-RNTI生成相应的随机接入响应消息，所述随机接入响应消息中包括第一终端标识，或者，所述随机接入响应消息中包括第一终端标识和所述C-RNTI。
  18. 根据权利要求17所述的装置，其特征在于，所述生成模块，还被配置为：
    若所述随机接入消息中的负载是不包括所述C-RNTI的第二负载，则为所述终端分配所述C-RNTI，并生成包括所述C-RNTI的第一随机接入响应消息，将所述第一随机接入响应消息作为所述随机接入响应消息；
    若所述随机接入消息中的负载是包括所述C-RNTI的第一负载，则生成不包括所述C-RNTI的第二随机接入响应消息，将所述第二随机接入响应消息作为所述随机接入响应消息。
  19. 根据权利要求17或18项所述的装置，其特征在于，若所述负载是包 括所述C-RNTI的第一负载，则所述装置还包括：
    第一加扰模块，被配置为根据所述C-RNTI对物理下行控制信道PDCCH进行加扰；
    第一传输模块，被配置为在所述第一加扰模块加扰后的PDCCH上传输第一指示信息，所述第一指示信息用于指示所述终端接收所述随机接入响应消息。
  20. 根据权利要求17或18所述的装置，其特征在于，所述装置还包括：
    计算模块，被配置为根据所述第一时频资源计算随机接入-无线无线网络临时标识RA-RNTI；
    第二加扰模块，被配置为根据所述计算模块得到的所述RA-RNTI对PDCCH进行加扰；
    第二传输模块，被配置为在所述第二加扰模块加扰后的PDCCH上传输第二指示信息，所述第二指示信息用于指示所述终端接收所述随机接入响应消息。
  21. 一种终端，其特征在于，所述终端包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    根据接入网设备发送的系统消息，在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
    获取所述接入网设备发送的随机接入响应消息；
    若所述随机接入响应消息中的第一终端标识与所述终端的第二终端标识相同，则根据所述随机接入响应消息中是否包括小区-无线网络临时标识C-RNTI，确定是否向所述接入网设备发送确认消息，所述确认消息用于告知所述接入网设备所述终端已接收到所述C-RNTI。
  22. 一种接入网设备，其特征在于，所述接入网设备包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    向终端发送系统消息，所述系统消息用于指示所述终端在第一时频资源上发送随机接入消息中的前导码，在第二时频资源上发送所述随机接入消息中的负载；
    在所述第一时频资源上接收所述前导码，在所述第二时频资源上接收所述负载；
    根据所述负载中是否携带小区-无线网络临时标识C-RNTI生成相应的随机接入响应消息，所述随机接入响应消息中包括第一终端标识，或者，所述随机接入响应消息中包括第一终端标识和所述C-RNTI。
  23. 一种随机接入系统，其特征在于，所述随机接入系统包括如权利要求11至16任一项所述的随机接入装置和如权利要求17至20任一项所述的随机接入装置，或者，所述资源指示系统包括如权利要求21所述的终端和如权利要求22所述的接入网设备。
  24. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现权利要求1至6任一所述的随机接入方法，或者，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现权利要求7至10任一所述的随机接入方法。
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Publication number Priority date Publication date Assignee Title
CN114269026B (zh) * 2022-03-01 2022-05-10 成都爱瑞无线科技有限公司 随机接入信号处理方法、随机接入方法、装置及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018102966A1 (zh) * 2016-12-05 2018-06-14 广东欧珀移动通信有限公司 用于随机接入的方法、网络设备和终端设备
CN108377558A (zh) * 2016-10-21 2018-08-07 华为技术有限公司 基于波束的多连接通信方法、终端设备及网络设备
WO2018141265A1 (en) * 2017-02-02 2018-08-09 Huawei Technologies Co., Ltd. Random access channel contention resolution
CN109863816A (zh) * 2019-01-18 2019-06-07 北京小米移动软件有限公司 随机接入方法、装置及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220811B (zh) * 2012-01-19 2018-04-27 中兴通讯股份有限公司 信息处理方法、mtc ue随机接入lte系统的方法
CN112399607B (zh) * 2017-06-14 2024-03-29 维沃移动通信有限公司 一种系统信息传输方法、终端及网络设备
CN109495222B (zh) * 2017-09-11 2021-06-15 大唐移动通信设备有限公司 一种ra-rnti确定方法及装置
US12082257B2 (en) * 2018-08-09 2024-09-03 Lg Electronics Inc. Method and apparatus for performing a random access procedure in wireless communication system
CN113767702B (zh) * 2019-04-30 2024-04-09 中兴通讯股份有限公司 随机接入中的资源指示

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108377558A (zh) * 2016-10-21 2018-08-07 华为技术有限公司 基于波束的多连接通信方法、终端设备及网络设备
WO2018102966A1 (zh) * 2016-12-05 2018-06-14 广东欧珀移动通信有限公司 用于随机接入的方法、网络设备和终端设备
WO2018141265A1 (en) * 2017-02-02 2018-08-09 Huawei Technologies Co., Ltd. Random access channel contention resolution
CN109863816A (zh) * 2019-01-18 2019-06-07 北京小米移动软件有限公司 随机接入方法、装置及存储介质

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "2 Step RA: MsgA Aspects", 3GPP DRAFT; R2-1905719_2 STEP RA_MSGA ASPECTS, vol. RAN WG2, 2 May 2019 (2019-05-02), Reno, USA, pages 1 - 5, XP051710073 *
SPREADTRUM COMMUNICATIONS: "Considerations on 2-step RACH procedure", 3GPP DRAFT; R1-1906367 CONSIDERATIONS ON 2-STEP RACH PROCEDURE, vol. RAN WG1, 2 May 2019 (2019-05-02), Reno, USA, pages 1 - 7, XP051708402 *

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