WO2020056733A1 - 一种负荷控制方法及装置、网络设备、终端 - Google Patents

一种负荷控制方法及装置、网络设备、终端 Download PDF

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Publication number
WO2020056733A1
WO2020056733A1 PCT/CN2018/106994 CN2018106994W WO2020056733A1 WO 2020056733 A1 WO2020056733 A1 WO 2020056733A1 CN 2018106994 W CN2018106994 W CN 2018106994W WO 2020056733 A1 WO2020056733 A1 WO 2020056733A1
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WIPO (PCT)
Prior art keywords
random access
terminal
step random
indication information
perform
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PCT/CN2018/106994
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English (en)
French (fr)
Inventor
王淑坤
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 EP18934153.0A priority Critical patent/EP3823400B1/en
Priority to CN202110261702.5A priority patent/CN113068270B/zh
Priority to PCT/CN2018/106994 priority patent/WO2020056733A1/zh
Priority to CN201880094826.5A priority patent/CN112335319A/zh
Publication of WO2020056733A1 publication Critical patent/WO2020056733A1/zh
Priority to US17/175,973 priority patent/US20210168857A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/008Transmission of channel access control information with additional processing of random access related information at receiving side
    • 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]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H04W74/0841Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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]
    • H04W74/0833Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure

Definitions

  • the embodiments of the present application relate to the field of mobile communication technologies, and in particular, to a load control method and device, a network device, and a terminal.
  • a user equipment accesses a network and acquires a radio resource control (RRC, Radio Resource Control) connection, it first needs to perform a random access process.
  • the current random access process uses a four-step random access process (referred to as 4 step RACH).
  • 4 step RACH a four-step random access process
  • 2 step RACH a two-step random access process
  • the resources of MSG3 are pre-configured.
  • the resource load of the two-step RACH is high, which will increase the probability of collision, thereby further expanding the access delay.
  • the embodiments of the present application provide a load control method and device, a network device, and a terminal.
  • the network device sends a system broadcast message, where the system broadcast message includes a first configuration parameter, and the first configuration parameter is used to control whether the terminal performs a two-step random access process.
  • the terminal determines whether to perform a two-step random access process based on the first configuration parameter.
  • the network device If the network device detects that the load of a physical random access channel (PRACH, Physical Random Access Channel) used to perform the two-step random access process exceeds a first threshold, the network device sends first instruction information to the terminal, The first instruction information instructs the terminal to perform a handover from a two-step random access procedure to a four-step random access procedure.
  • PRACH Physical Random Access Channel
  • the terminal determines to perform a handover from a two-step random access procedure to a four-step random access procedure based on the first instruction information.
  • the first sending unit is configured to send a system broadcast message, where the system broadcast message includes a first configuration parameter, and the first configuration parameter is used to control whether the terminal performs a two-step random access process.
  • a first receiving unit configured to receive a system broadcast message sent by a network device, where the system broadcast message includes a first configuration parameter
  • a determining unit configured to determine whether to perform a two-step random access process based on the first configuration parameter.
  • a detection unit configured to detect that a PRACH load used to perform a two-step random access procedure exceeds a first threshold
  • the sending unit is configured to send first instruction information to the terminal, where the first instruction information instructs the terminal to perform a handover from a two-step random access procedure to a four-step random access procedure.
  • a receiving unit configured to receive first indication information sent by a network device
  • a determining unit configured to determine to perform a handover from a two-step random access procedure to a four-step random access procedure based on the first instruction information.
  • the network device provided in the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the above-mentioned load control method.
  • the terminal provided in the embodiment of the present application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the above-mentioned load control method.
  • the chip provided in the embodiment of the present application is used to implement the foregoing load control method.
  • the chip includes: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the foregoing load control method.
  • the computer-readable storage medium provided in the embodiment of the present application is used to store a computer program, and the computer program causes a computer to execute the foregoing load control method.
  • the computer program product provided in the embodiment of the present application includes computer program instructions, and the computer program instructions cause a computer to execute the foregoing load control method.
  • the computer program provided in the embodiment of the present application when run on a computer, causes the computer to execute the above-mentioned load control method.
  • the network side configures the load control parameters (that is, the first configuration parameters) of the two-step random access process through system broadcast, and carries the first indication information to the terminal through a paging message or a random access response message.
  • An indication information is used to instruct the terminal to determine whether to perform a handover from a two-step random access process to a four-step random access process.
  • FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.
  • Figure 3 (a) is the format of E / T / R / R / BI MAC subheader
  • Figure 3 (b) is the format of E / T / RAPID MAC subheader
  • Figure 3 (c) is the format of MAC PDUs (including MAC RARs);
  • Figure 3 (d) is a schematic diagram of a MAC RAR
  • FIG. 4 is a first schematic flowchart of a load control method according to an embodiment of the present application.
  • FIG. 5 is a second schematic flowchart of a load control method according to an embodiment of the present application.
  • FIG. 6 is a third flowchart of a load control method according to an embodiment of the present application.
  • FIG. 7 is a fourth flowchart of a load control method according to an embodiment of the present application.
  • FIG. 8 is a first structural schematic diagram of a load control device according to an embodiment of the present application.
  • FIG. 9 is a second schematic diagram of the structure and composition of a load control device according to an embodiment of the present application.
  • FIG. 10 is a third structural schematic view of a load control device according to an embodiment of the present application.
  • FIG. 11 is a fourth structural schematic view of a load control device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System for Mobile
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with the terminal 120 (or a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminals 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 120 located within a coverage area of the network device 110.
  • terminal used herein includes, but is not limited to, connection via a wired line, such as via a Public Switched Telephone Network (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 A broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or an Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Network
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • DVB-H networks digital television networks
  • satellite networks satellite networks
  • AM-FM A broadcast transmitter AM-FM A broadcast transmitter
  • IoT Internet of Things
  • a terminal configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal”, or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; personal communications systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communications capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS personal communications systems
  • GPS Global Positioning System
  • a terminal can refer to an access terminal, user equipment (User Equipment, UE), 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.
  • the terminals 120 may perform terminal direct connection (Device to Device, D2D) communication.
  • D2D Terminal to Device
  • the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminals.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within its coverage area. Embodiments of the present application This is not limited.
  • 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.
  • a communication device may include a network device 110 and a terminal 120 having a communication function, and the network device 110 and the terminal 120 may be specific devices described above, and are not described herein again; communication
  • the device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobile management entity, which are not limited in the embodiments of the present application.
  • NR New Radio
  • LTE Long Term Evolution
  • NR New Radio
  • LTE Long Term Evolution
  • NR New Radio
  • LTE Long Term Evolution
  • NR New Radio
  • the technical solution of the embodiment of the present invention is mainly applied to a 5G mobile communication system.
  • the technical solution of the embodiment of the present invention is not limited to the 5G mobile communication system, and can also be applied to other types of mobile communication systems.
  • eMBB targets users to obtain multimedia content, services, and data, and its business demand is growing rapidly. Because eMBB may be deployed in different scenarios, such as indoor, urban, rural, etc., and its service capabilities and requirements vary widely, it is necessary to analyze services in conjunction with specific deployment scenarios.
  • URLLC scenario Typical applications of URLLC include: industrial automation, electric power automation, telemedicine operations, and traffic safety assurance.
  • mMTC scenario The typical characteristics of URLLC include: high connection density, small amount of data, delay-insensitive services, low cost of modules, and long service life.
  • FIG. 2 is a flowchart of a four-step random access process, including the following steps:
  • the UE sends MSG1 to the gNB: Random Access Preamble.
  • the UE selects a PRACH resource and sends the selected preamble on the PRACH resource.
  • a PRACH resource there are a total of 64 Preambles, and each Preamble corresponds to an index, and the value of the index ranges from 0 to 63.
  • the gNB sends MSG2: Random Access Response (RAR, Random Access Response) to the UE.
  • RAR Random Access Response
  • the gNB responds to MSG1 to send a random access response to the UE, and the UE calculates a random access-radio network temporary identity (RA-RNTI) for scrambling scheduling information of the MSG2 according to the PRACH resource that sent the Preamble.
  • RA-RNTI random access-radio network temporary identity
  • the data format of the media access control (MAC) layer of the RAR is shown in FIG. 3 (a), FIG. 3 (b), FIG. 3 (c), and FIG. 3 (d). Among them, FIG.
  • FIG. 3 (a) It is the format of E / T / R / R / BI MAC subheader
  • Figure 3 (b) is the format of E / T / RAPID MAC subheader
  • Figure 3 (c) is the media access control protocol data unit (MAC, PDU, Media Access Control Protocol Data Unit (including MAC RARs) format.
  • Figure 3 (d) is a schematic diagram of MAC RAR.
  • UE sends MSG3 to gNB: Scheduled Transmission
  • the network side allocates uplink resources for sending MSG3 to the UE, and the UE sends MSG3 on the uplink resources (UL grant) allocated by the network side.
  • gNB sends MSG4 to UE: Contention Resolution
  • MSG1 and MSG3 are sent simultaneously or almost simultaneously (MSG3 can be sent without waiting for MSG2 here), and MSG2 and MSG4 are sent together (one PDSCH transmission or two PDSCH transmissions).
  • the resources for sending MSG3 are pre-configured, and the pre-configured resources are limited. In order to avoid waste of resources, the two-step random access process does not allocate many resources.
  • the two-step random access The access process should ensure that UEs with high latency requirements can use MSG3 resources normally. Therefore, when many users use the two-step random access process resulting in a high resource load in the two-step random access process, the collision probability will be increased to further expand access. Delay, so load control is needed for the two-step random access process.
  • FIG. 4 is a first flowchart of a load control method according to an embodiment of the present application. As shown in FIG. 4, the load control method includes the following steps:
  • Step 401 The network device sends a system broadcast message, where the system broadcast message includes a first configuration parameter, and the first configuration parameter is used to control whether the terminal performs a two-step random access process.
  • the network device may be a base station, such as a gNB in 5G and an eNB in 4G.
  • the network device sends a system broadcast message in a broadcast manner.
  • the system broadcast message includes a first configuration parameter, and the first configuration parameter is used to control whether the terminal performs a two-step random access process.
  • the first configuration parameter includes second indication information and a first control parameter, where:
  • the second instruction information is used to indicate whether the terminal can perform a two-step random access procedure
  • the first control parameter is used to determine whether the terminal performs a two-step random access process to a four-step random access process when the second instruction information indicates that the terminal can perform a two-step random access process. Process switching.
  • the second indication information includes a first bitmap, and each bit in the first bitmap corresponds to an access control (AC, Access Control) value, and the value of the bit It is used to indicate whether the terminal corresponding to the AC value of the bit can perform a two-step random access procedure.
  • AC Access Control
  • the first bitmap is an AC bitmap
  • each bit in the AC bitmap corresponds to a 2 step RACH control for a UE with an AC value.
  • the first control parameter includes a first random number
  • the determining whether the terminal performs a handover from a two-step random access procedure to a four-step random access procedure includes:
  • the terminal determines that the terminal performs a handover from a two-step random access procedure to a four-step random access procedure;
  • the terminal performs a two-step random access procedure.
  • gNB broadcasts a random number in the system broadcast, the number is between 0 and 1.
  • the UE randomly generates a number from 0 to 1, and then compares it with the random number configured in the system broadcast. If the number generated by the UE is greater than the number in the system broadcast, the UE falls back to 4 step RACH, otherwise it continues to execute 2 step RACH.
  • the network device detects that the PRACH load used to perform the two-step random access procedure exceeds a first threshold value, the network device sends first indication information to the terminal, and the first The indication information is used to instruct the terminal to determine whether to perform a handover from a two-step random access procedure to a four-step random access procedure.
  • the network side detects that the PRACH load of the two-step RACH is high, the network side sends first indication information to the UE, instructing the UE to determine whether to perform the fallback of two-step RACH to four-step RACH.
  • the network device may send the first indication information to the terminal in any of the following two ways:
  • the network equipment carries the first indication information in a random access response message sent to the terminal.
  • the MAC PDU in the random access response message carries the first indication information.
  • the MAC PDU in the random access response message may be referred to as a RAR MAC PDU
  • the RAR MAC PDU carries first indication information, which is used to instruct the UE to determine whether to perform a fallback of 2 steps RACH to 4 steps RACH.
  • the network device carries the first indication information in a paging message or paging downlink control information (DCI, Downlink Control Information) sent to the terminal.
  • DCI Downlink Control Information
  • the first indication information is carried in the paging message, or the first indication information is carried in the paging DCI, which is used to instruct the UE to determine whether to perform the fallback of 2 steps RACH to 4 steps RACH.
  • the AC value of the UE may also instruct the UE to determine whether to perform a fallback of 2 steps RACH to 4 steps. For example, based on the AC bitmap, determine that the bit corresponding to the AC value of the UE is 1, which indicates that the UE can Perform 2 steps RACH, that is, the AC value instructs the UE to determine whether to perform 2 steps RACH to 4 steps RACH fallback.
  • the UE determines whether to perform the 2 step RACH according to the random number in the system broadcast For example, the UE randomly generates a number from 0 to 1 and compares it with the random number configured in the system broadcast. If the number generated by the UE is greater than the number in the system broadcast, the UE falls back to 4 steps RACH, otherwise it continues to execute 2 steps RACH.
  • each user is randomly assigned an AC value of 0 to 9 and the AC value is stored in the SIM card.
  • the AC value is stored in the SIM card.
  • one or more AC values of 11 to 15 can be stored.
  • users with AC values of 11 to 15 generally have higher priority, however, the AC value does not represent the priority order.
  • FIG. 5 is a second flowchart of a load control method according to an embodiment of the present application. As shown in FIG. 5, the load control method includes the following steps:
  • Step 501 The terminal receives a system broadcast message sent by a network device, where the system broadcast message includes a first configuration parameter; and the terminal determines whether to perform a two-step random access process based on the first configuration parameter.
  • the network device may be a base station, such as a gNB in 5G and an eNB in 4G.
  • the network device sends a system broadcast message in a broadcast manner.
  • the system broadcast message includes a first configuration parameter, and the first configuration parameter is used to control whether the terminal performs a two-step random access process.
  • the first configuration parameter includes second indication information and a first control parameter, where:
  • the second instruction information is used to indicate whether the terminal can perform a two-step random access procedure
  • the first control parameter is used to determine whether the terminal performs a two-step random access process to a four-step random access process when the second instruction information indicates that the terminal can perform a two-step random access process. Process switching.
  • the second indication information includes a first bitmap, and each bit in the first bitmap corresponds to an AC value, and the value of the bit is used to indicate that the bit corresponds to Whether the terminal with AC value can perform a two-step random access procedure.
  • the first bitmap is an AC bitmap
  • each bit in the AC bitmap corresponds to a 2 step RACH control for a UE with an AC value.
  • the first control parameter includes a first random number
  • the determining whether the terminal performs a handover from a two-step random access process to a four-step random access process includes: if the terminal receives the first instruction information sent by the network device, the terminal is based on the The first configuration parameter is described to determine whether to perform a two-step random access procedure. Further, if the second random number generated by the terminal is greater than or equal to the first random number, it is determined that the terminal performs a handover from a two-step random access procedure to a four-step random access procedure; If the second random number is smaller than the first random number, it is determined that the terminal performs a two-step random access process.
  • gNB broadcasts a random number in the system broadcast, the number is between 0 and 1.
  • the UE randomly generates a number from 0 to 1, and then compares it with the random number configured in the system broadcast. If the number generated by the UE is greater than the number in the system broadcast, the UE falls back to 4 step RACH, otherwise it continues to execute 2 step RACH.
  • the terminal receives first instruction information sent by the network device, and the first instruction information is used to instruct the terminal to determine whether to perform a two-step random access process to a four-step random access process.
  • the network side detects that the PRACH load of the two-step RACH is high, the network side sends first indication information to the UE, instructing the UE to determine whether to perform the fallback of two-step RACH to four-step RACH.
  • the terminal may obtain the first instruction information in any of the following two ways:
  • the MAC PDU in the random access response message carries the first indication information.
  • the MAC PDU in the random access response message may be referred to as a RAR MAC PDU
  • the RAR MAC PDU carries first indication information, which is used to instruct the UE to determine whether to perform a fallback of 2 steps RACH to 4 steps RACH. .
  • the terminal Obtaining, by the terminal, the first indication information from a paging message or a paging DCI sent by the network device.
  • the first indication information is carried in the paging message, or the first indication information is carried in the paging DCI, which is used to instruct the UE to determine whether to perform the fallback of 2 steps RACH to 4 steps RACH.
  • the AC value of the UE may also instruct the UE to determine whether to perform a fallback of 2 steps RACH to 4 steps. For example, based on the AC bitmap, determine that the bit corresponding to the AC value of the UE is 1, indicating that the UE can Perform 2 steps RACH, that is, the AC value instructs the UE to determine whether to perform 2 steps RACH to 4 steps RACH fallback. If the UE receives the first instruction information sent by the network device, and the AC value of the UE also indicates whether it is necessary to determine whether to perform the 2 step RACH to 4 step RACH, the UE determines whether to perform the 2 step RACH according to the random number in the system broadcast.
  • the UE randomly generates a number from 0 to 1 and compares it with the random number configured in the system broadcast. If the number generated by the UE is greater than the number in the system broadcast, the UE falls back to 4 steps RACH, otherwise it continues to execute 2 steps RACH.
  • each user is randomly assigned an AC value of 0 to 9 and the AC value is stored in the SIM card.
  • the AC value is stored in the SIM card.
  • one or more AC values of 11 to 15 can be stored.
  • users with AC values of 11 to 15 generally have higher priority, however, the AC value does not represent the priority order.
  • FIG. 6 is a third flowchart of a load control method according to an embodiment of the present application. As shown in FIG. 6, the load control method includes the following steps:
  • Step 601 The network device detects that the PRACH load used to perform the two-step random access process exceeds a first threshold value, the network device sends first instruction information to the terminal, where the first instruction information indicates the The terminal performs a handover from a two-step random access procedure to a four-step random access procedure.
  • the network device may be a base station, such as a gNB in 5G and an eNB in 4G.
  • the network side when the network side detects that the PRACH load of the two-step RACH is high, the network side sends the first instruction information to the UE, instructing the UE to perform the fallback from the two-step RACH to the four-step RACH.
  • the network device may send the first indication information to the terminal in any of the following two ways:
  • the network equipment carries the first indication information in a random access response message sent to the terminal.
  • the MAC PDU in the random access response message carries the first indication information.
  • the MAC PDU in the random access response message may be referred to as a RAR MAC PDU, and the RAR MAC PDU carries first indication information, which is used to instruct the UE to perform 2 steps RACH to 4 steps RACH fallback.
  • the network device carries the first indication information in a paging message or a paging DCI sent to the terminal.
  • the first indication information is carried in the paging message, or the first indication information is carried in the paging DCI, which is used to instruct the UE to perform the fallback from 2 steps RACH to 4 steps RACH.
  • FIG. 7 is a fourth flowchart of a load control method according to an embodiment of the present application. As shown in FIG. 7, the load control method includes the following steps:
  • Step 701 The terminal receives the first instruction information sent by the network device. Based on the first instruction information, the terminal determines to perform a handover from a two-step random access process to a four-step random access process.
  • the network device may be a base station, such as a gNB in 5G and an eNB in 4G.
  • the network side sends first instruction information to the UE, instructing the UE to perform the fallback from two-step RACH to four-step RACH.
  • the terminal may obtain the first instruction information in any of the following two ways:
  • the MAC PDU in the random access response message carries the first indication information.
  • the MAC PDU in the random access response message may be referred to as a RAR MAC PDU, and the RAR MAC PDU carries first indication information, which is used to instruct the UE to perform 2 steps RACH to 4 steps RACH fallback.
  • the terminal Obtaining, by the terminal, the first indication information from a paging message or a paging DCI sent by the network device.
  • the first indication information is carried in the paging message, or the first indication information is carried in the paging DCI, which is used to instruct the UE to perform the fallback from 2 steps RACH to 4 steps RACH.
  • the terminal executes a four-step random access procedure when initiating random access again.
  • FIG. 8 is a first schematic diagram of the structure and composition of a load control device according to an embodiment of the present application, which is applied to a network device, such as a base station. As shown in FIG. 8, the device includes:
  • the first sending unit 801 is configured to send a system broadcast message, where the system broadcast message includes a first configuration parameter, and the first configuration parameter is used to control whether the terminal performs a two-step random access process.
  • the device further includes:
  • a detecting unit 802 configured to detect that a PRACH load used to perform a two-step random access procedure exceeds a first threshold
  • a second sending unit 803 is configured to send first instruction information to the terminal, where the first instruction information is used to instruct the terminal to determine whether to perform a handover from a two-step random access procedure to a four-step random access procedure.
  • the second sending unit 803 is configured to carry the first indication information in a random access response message sent to the terminal.
  • the MAC indication PDU in the random access response message carries the first indication information.
  • the second sending unit 803 is configured to carry the first indication information in a paging message or a paging DCI sent to the terminal.
  • the first configuration parameter includes second indication information and a first control parameter, wherein:
  • the second instruction information is used to indicate whether the terminal can perform a two-step random access procedure
  • the first control parameter is used to determine whether the terminal performs a two-step random access process to a four-step random access process when the second instruction information indicates that the terminal can perform a two-step random access process. Process switching.
  • the second indication information includes a first bitmap, and each bit in the first bitmap corresponds to an AC value, and the value of the bit is used to indicate that the bit corresponds to Whether the terminal with AC value can perform a two-step random access procedure.
  • the first control parameter includes a first random number
  • the determining whether the terminal performs a handover from a two-step random access procedure to a four-step random access procedure includes:
  • the terminal determines that the terminal performs a handover from a two-step random access procedure to a four-step random access procedure;
  • the terminal performs a two-step random access procedure.
  • FIG. 9 is a second schematic diagram of the structure and composition of a load control device according to an embodiment of the present application, which is applied to a terminal. As shown in FIG. 9, the device includes:
  • a first receiving unit 901 configured to receive a system broadcast message sent by a network device, where the system broadcast message includes a first configuration parameter
  • a determining unit 902 is configured to determine whether to perform a two-step random access process based on the first configuration parameter.
  • the device further includes:
  • a second receiving unit 903 is configured to receive first instruction information sent by the network device, where the first instruction information is used to instruct the terminal to determine whether to perform a process from a two-step random access process to a four-step random access process. Switch.
  • the second receiving unit 903 is configured to obtain the first indication information from a random access response message sent by the network device.
  • the MAC indication PDU in the random access response message carries the first indication information.
  • the second receiving unit 903 is configured to obtain the first indication information from a paging message or a paging DCI sent by the network device.
  • the first configuration parameter includes second indication information and a first control parameter, wherein:
  • the second instruction information is used to indicate whether the terminal can perform a two-step random access procedure
  • the first control parameter is used to determine whether the terminal performs a two-step random access process to a four-step random access process when the second instruction information indicates that the terminal can perform a two-step random access process. Process switching.
  • the second indication information includes a first bitmap, and each bit in the first bitmap corresponds to an AC value, and the value of the bit is used to indicate that the bit corresponds to Whether the terminal with AC value can perform a two-step random access procedure.
  • the first control parameter includes a first random number
  • the determining unit 902 is configured to determine whether to perform a two-step random access process based on the first configuration parameter if the first instruction information sent by the network device is received.
  • the determining unit 902 is configured to determine, if the second random number generated by the terminal is greater than or equal to the first random number, that the terminal performs a two-step random access process to a four-step random access Switching of the access process; if the second random number generated by the terminal is smaller than the first random number, determining that the terminal performs a two-step random access process.
  • FIG. 10 is a schematic diagram of the structure and composition of a load control device provided in an embodiment of the present application, which is applied to network equipment, such as a base station. As shown in FIG. 10, the device includes:
  • a detection unit 1001 configured to detect that a PRACH load used to perform a two-step random access procedure exceeds a first threshold
  • the sending unit 1002 is configured to send first instruction information to the terminal, where the first instruction information instructs the terminal to perform a handover from a two-step random access procedure to a four-step random access procedure.
  • the sending unit 1002 is configured to carry the first indication information in a random access response message sent to the terminal.
  • the first indication information carried in the random access response message includes:
  • the MAC PDU in the random access response message carries the first indication information.
  • the sending unit 1002 is configured to carry the first indication information in a paging message or a paging DCI sent to the terminal.
  • FIG. 11 is a fourth schematic diagram of the structure and composition of a load control device according to an embodiment of the present application, which is applied to a terminal. As shown in FIG. 11, the device includes:
  • the receiving unit 1101 is configured to receive first indication information sent by a network device
  • a determining unit 1102 is configured to determine to perform a handover from a two-step random access procedure to a four-step random access procedure based on the first instruction information.
  • the receiving unit 1101 is configured to obtain the first indication information from a random access response message sent by the network device.
  • the MAC indication PDU in the random access response message carries the first indication information.
  • the receiving unit 1101 is configured to obtain the first indication information from a paging message or a paging DCI sent by the network device.
  • the device further includes:
  • the random access unit 1103 is configured to perform a four-step random access process when random access is initiated again after the current two-step random access process ends.
  • FIG. 12 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device may be a network device or a terminal.
  • the communication device 600 shown in FIG. 12 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be 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. .
  • the communication device 600 may specifically be a mobile terminal / terminal of the embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the mobile terminal / terminal in each method of the embodiment of the present application. For simplicity, in This will not be repeated here.
  • FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 13 includes a processor 710, and the processor 710 can 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 in the embodiments of the present application, and the chip can implement the corresponding process implemented by the mobile terminal / terminal in each method of the embodiments of the present application. To repeat.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip.
  • FIG. 14 is a schematic block diagram of a communication system 900 according to an embodiment of the present application.
  • the communication system 900 includes a terminal 910 and a network device 920.
  • the terminal 910 may be used to implement the corresponding functions implemented by the terminal in the foregoing method
  • the network device 920 may be used to implement the corresponding functions implemented by the network device in the foregoing method.
  • details are not described herein again.
  • the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability.
  • each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field, Programmable Gate Array, FPGA), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
  • the storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the foregoing method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchronous DRAM Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM Enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory Synchrobus RAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct RAMbus RAM, DR RAM) and so on. That is, the memories in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.
  • An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application. For simplicity, here No longer.
  • the computer-readable storage medium may be applied to a mobile terminal / terminal in the embodiments of the present application, and the computer program causes a computer to execute a corresponding process implemented by the mobile terminal / terminal in each method of the embodiments of the present application in order to Concise, I won't repeat them here.
  • An embodiment of the present application further provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instruction causes the computer to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. More details.
  • the computer program product can be applied to a mobile terminal / terminal 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 in each method of the embodiments of the present application for the sake of brevity , Will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program may be applied to a network device in the embodiment of the present application.
  • the computer program When the computer program is run on a computer, the computer is caused to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. , Will not repeat them here.
  • the computer program may be applied to a mobile terminal / terminal in the embodiment of the present application, and when the computer program is run on a computer, the computer is caused to execute the corresponding method implemented by the mobile terminal / terminal in each method of the embodiment of the present application For the sake of brevity, we will not repeat them here.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes .

Abstract

本申请实施例提供一种负荷控制方法及装置、网络设备,终端,包括:网络设备发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。

Description

一种负荷控制方法及装置、网络设备、终端 技术领域
本申请实施例涉及移动通信技术领域,具体涉及一种负荷控制方法及装置、网络设备、终端。
背景技术
用户设备(UE,User Equipment)接入网络以及获取无线资源控制(RRC,Radio Resource Control)连接,首先需要进行随机接入过程。目前的随机接入过程采用四步随机接入过程(简称为4 step RACH)。为了缩短随机接入过程时延,快速进入网络开展业务,提出了两步随机接入过程(简称为2 step RACH)。在2 step RACH中,MSG3的资源是预先配置的,当很多用户使用2 step RACH导致2 step RACH资源负荷较高时,会增加冲突概率,从而进一步扩大接入时延。
发明内容
本申请实施例提供一种负荷控制方法及装置、网络设备、终端。
本申请实施例提供的负荷控制方法,包括:
网络设备发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
本申请实施例提供的负荷控制方法,包括:
终端接收网络设备发送的系统广播消息,所述系统广播消息中包括第一配置参数;
所述终端基于所述第一配置参数确定是否执行两步随机接入过程。
本申请实施例提供的负荷控制方法,包括:
网络设备检测到用于执行两步随机接入过程的物理随机接入信道(PRACH,Physical Random Access Channel)负荷超过第一门限值,则所述网络设备向所述终端发送第一指示信息,所述第一指示信息指示所述终端执行从两步随机接入过程到四步随机接入过程的切换。
本申请实施例提供的负荷控制方法,包括:
终端接收网络设备发送的第一指示信息;
所述终端基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换。
本申请实施例提供的负荷控制装置,包括:
第一发送单元,用于发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
本申请实施例提供的负荷控制装置,包括:
第一接收单元,用于接收网络设备发送的系统广播消息,所述系统广播消息中包括第一配置参数;
确定单元,用于基于所述第一配置参数确定是否执行两步随机接入过程。
本申请实施例提供的负荷控制装置,包括:
检测单元,用于检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值;
发送单元,用于向所述终端发送第一指示信息,所述第一指示信息指示所述终端执行从两步随机接入过程到四步随机接入过程的切换。
本申请实施例提供的负荷控制装置,包括:
接收单元,用于接收网络设备发送的第一指示信息;
确定单元,用于基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换。
本申请实施例提供的网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述的负荷控制方法。
本申请实施例提供的终端,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,执行上述的负荷控制方法。
本申请实施例提供的芯片,用于实现上述的负荷控制方法。
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上述的负荷控制方法。
本申请实施例提供的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的负荷控制方法。
本申请实施例提供的计算机程序产品,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的负荷控制方法。
本申请实施例提供的计算机程序,当其在计算机上运行时,使得计算机执行上述的负荷控制方法。
通过上述技术方案,网络侧通过系统广播配置两步随机接入过程的负荷控制参数(即第一配置参数),通过寻呼消息或者随机接入响应消息携带第一指示信息给终端,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换,如此,实现了2 step RACH资源的负荷控制,避免2 step RACH资源的负荷过高,从而降低了用户接入的冲突概率。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是本申请实施例提供的一种通信系统架构的示意性图;
图2是四步随机接入过程的流程图;
图3(a)是E/T/R/R/BI MAC subheader的格式;
图3(b)是E/T/RAPID MAC subheader的格式;
图3(c)是MAC PDU(包括MAC RARs)的格式;
图3(d)是MAC RAR的示意图;
图4为本申请实施例提供的负荷控制方法的流程示意图一;
图5为本申请实施例提供的负荷控制方法的流程示意图二;
图6为本申请实施例提供的负荷控制方法的流程示意图三;
图7为本申请实施例提供的负荷控制方法的流程示意图四;
图8为本申请实施例提供的负荷控制装置的结构组成示意图一;
图9为本申请实施例提供的负荷控制装置的结构组成示意图二;
图10为本申请实施例提供的负荷控制装置的结构组成示意图三;
图11为本申请实施例提供的负荷控制装置的结构组成示意图四;
图12是本申请实施例提供的一种通信设备示意性结构图;
图13是本申请实施例的芯片的示意性结构图;
图14是本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
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。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统或5G系统等。
示例性的,本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110,网络设备110可以是与终端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进行通信。可选地,该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(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。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端120。作为在此使用的“终端”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系统(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/或全球定位系统(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网络中的终端或者未来演进的PLMN中的终端等。
可选地,终端120之间可以进行终端直连(Device to Device,D2D)通信。
可选地,5G系统或5G网络还可以称为新无线(New Radio,NR)系统或NR网络。
图1示例性地示出了一个网络设备和两个终端,可选地,该通信系统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,本申请实施例对此不做限定。
可选地,该通信系统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。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统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120,网络设备110和终端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系统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。
应理解,本文中术语“系统”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。
为了满足人们对业务的速率、延迟、高速移动性、能效的追求,以及未来生活中业务的多样性、复杂性,第三代合作伙伴计划(3GPP,3rd Generation Partnership Project)国际标准组织开始研发第五代(5G,5th Generation)移动通信技术。
5G移动通信技术的空口部分称为新空口(NR,New Radio),在NR早期部署时,完整的NR覆盖很难达到,所以典型的网络覆盖是长期演进(LTE,Long Term Evolution)覆盖和NR覆盖的结合。此外,为了保护移动运营商前期在LTE上的投资,提出了LTE和NR之间的紧耦合(tight interworking)工作模式。当然,NR小区也可以独立部署。此外,由于各个NR小区都是波束(beam)操作,一个小区有多个beam。
本发明实施例的技术方案主要应用于5G移动通信系统,当然,本发明实施例的技术方案并不局限于5G移动通信系统,还可以应用于其他类型的移动通信系统。以下对5G移动通信系统中的主要应用场景进行说明:
1)eMBB场景:eMBB以用户获得多媒体内容、服务和数据为目标,其业务需求增长十分迅速。由于eMBB可能部署在不同的场景中,例如室内、市区、农村等,其业务能力和需求的差别也比较大,所以必须结合具体的部署场景对业务进行分析。
2)URLLC场景:URLLC的典型应用包括:工业自动化、电力自动化、远程医疗操作、交通安全保障等。
3)mMTC场景:URLLC的典型特点包括:高连接密度、小数据量、时延不敏感业务、模块的低成本和长使用寿命等。
UE接入网络侧获取RRC连接首先需要进行随机接入过程,参照图2,图2为四步随机接入过程的流程图,包括以下步骤:
1、UE向gNB发送MSG1:随机接入前导码(Random Access Preamble)。
具体地,UE选择PRACH资源,在PRACH资源上发送选择的前导码(Preamble),这里,Preamble总共有64个,每个Preamble对应一个索引值(index),index的取值范 围从0到63。
2、gNB向UE发送MSG2:随机接入响应(RAR,Random Access Response)。
具体地,gNB回复MSG1向UE发送随机接入响应,UE根据发送Preamble的PRACH资源计算用于加扰MSG2的调度信息的随机接入-无线网络临时标识(RA-RNTI)。RAR的媒体接入控制(MAC,Media Access Control)层数据格式参照图3(a)、图3(b)、图3(c)和图3(d)所示,其中,图3(a)是E/T/R/R/BI MAC subheader的格式,图3(b)是E/T/RAPID MAC subheader的格式,图3(c)是媒体接入控制协议数据单元(MAC PDU,Media Access Control Protocol Data Unit)(包括MAC RARs)的格式,图3(d)是MAC RAR的示意图。
3、UE向gNB发送MSG3:调度传输(Scheduled Transmission)
具体地,在MSG2中网络侧会给UE分配用于发送MSG3的上行资源,UE在网络侧分配的上行资源(UL grant)上发送MSG3。
4、gNB向UE发送MSG4:竞争解决(Contention Resolution)
为了缩短随机接入过程时延,快速进入网络侧开展业务,提出了两步随机接入过程。在两步随机接入过程中,MSG1和MSG3同时或几乎同时发送(MSG3这里不用等待MSG2就可以发送),MSG2和MSG4一起发送(一个PDSCH传输或者两个PDSCH传输)。
在两步随机接入过程中,用于发送MSG3的资源是预先配置的,预先配置的资源有限,为了避免资源浪费,两步随机接入过程不会配置很多资源,另一方面,两步随机接入过程应该保证高时延需求的UE能够正常使用MSG3资源,所以,当很多用户使用两步随机接入过程导致两步随机接入过程资源负荷较高时,会增加冲突概率进一步扩大接入时延,所以需要对两步随机接入过程进行负荷控制。
图4为本申请实施例提供的负荷控制方法的流程示意图一,如图4所示,所述负荷控制方法包括以下步骤:
步骤401:网络设备发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
本申请实施例中,网络设备可以是基站,例如5G中的gNB,4G中的eNB。
本申请实施例中,网络设备通过广播的方式发送系统广播消息,这里,系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
本申请实施例中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个接入控制(AC,Access Control)值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
举个例子:第一位图为AC位图(AC bitmap),该AC bitmap中每个bit对应针对一个AC值的UE使用2 step RACH的控制。例如10101表示AC=11到15的UE使用2 step RACH的控制信息,那么,AC=11,13,15的终端在接入时能够执行2 step RACH。
在一实施方式中,所述第一控制参数包括第一随机数;
所述判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换,包 括:
如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;
如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
举个例子:gNB在系统广播里面广播一个随机数字,该数字在0和1之间。UE随机产生一个0到1的数字,然后与系统广播中配置的随机数字比较,如果UE产生的数字大于系统广播中的数字,则UE回退到4 step RACH,否则继续执行2 stepRACH。
在一实施方式中,所述网络设备检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值,则所述网络设备向所述终端发送第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。这里,当网络侧检测到2 step RACH的PRACH负荷较高时,网络侧发送第一指示信息给UE,指示UE判定是否执行2 step RACH到4 step RACH的回落。
本申请实施例中,所述网络设备可以通过以下两种方式中的任意一种方式向所述终端发送第一指示信息:
方式一:
所述网络设备在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
进一步,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。这里,随机接入响应消息中的MAC PDU可以称为RAR MAC PDU,在RAR MAC PDU中携带第一指示信息,用于指示UE判定是否执行2 step RACH到4 step RACH的回落。
方式二:
所述网络设备在向所述终端发送的寻呼消息或寻呼下行控制信息(DCI,Downlink Control Information)中携带所述第一指示信息。
这里,在寻呼(paging)消息中携带第一指示信息,或者,在paging DCI中携带第一指示信息,用于指示UE判定是否执行2 step RACH到4 step RACH的回落。
本申请实施例中,UE的AC值,也可以指示UE判断是否执行2 step RACH到4step RACH的回落,举个例子,基于AC bitmap确定UE的AC值对应的比特位为1,代表该UE能够执行2 step RACH,也即:该AC值指示UE判断是否执行2 step RACH到4 step RACH的回落。如果UE接收到网络设备发送的第一指示信息,且该UE的AC值也指示需要判断是否执行2 step RACH到4 step RACH的回落,则UE根据系统广播中的随机数字判断是否执行2 step RACH,例如:UE随机产生一个0到1的数字,然后与系统广播中配置的随机数字比较,如果UE产生的数字大于系统广播中的数字,则UE回退到4 step RACH,否则继续执行2 step RACH。
需要说明的是,每个用户都被随机分配一个0到9的AC值,该AC值存储在SIM卡中,对于一些特殊的用户可以拥有一个或多个11到15的AC值,同样被存储在SIM卡中,拥有11到15的AC值的用户一般具有较高的优先级,然而,AC值的大小并不代表优先级顺序。
图5为本申请实施例提供的负荷控制方法的流程示意图二,如图5所示,所述负荷控制方法包括以下步骤:
步骤501:终端接收网络设备发送的系统广播消息,所述系统广播消息中包括第一配置参数;所述终端基于所述第一配置参数确定是否执行两步随机接入过程。
本申请实施例中,网络设备可以是基站,例如5G中的gNB,4G中的eNB。
本申请实施例中,网络设备通过广播的方式发送系统广播消息,这里,系统广播 消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
本申请实施例中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
举个例子:第一位图为AC位图(AC bitmap),该AC bitmap中每个bit对应针对一个AC值的UE使用2 step RACH的控制。例如10101表示AC=11到15的UE使用2 step RACH的控制信息,那么,AC=11,13,15的终端在接入时能够执行2 stepRACH。
在一实施方式中,所述第一控制参数包括第一随机数;
所述判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换,包括:如果所述终端接收到所述网络设备发送的第一指示信息,则所述终端基于所述第一配置参数确定是否执行两步随机接入过程。进一步,如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
举个例子:gNB在系统广播里面广播一个随机数字,该数字在0和1之间。UE随机产生一个0到1的数字,然后与系统广播中配置的随机数字比较,如果UE产生的数字大于系统广播中的数字,则UE回退到4 step RACH,否则继续执行2 stepRACH。
在一实施方式中,所述终端接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。这里,当网络侧检测到2 step RACH的PRACH负荷较高时,网络侧发送第一指示信息给UE,指示UE判定是否执行2 step RACH到4 step RACH的回落。
本申请实施例中,所述终端可以通过以下两种方式中的任意一种方式获得第一指示信息:
方式一:
所述终端从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
进一步,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。这里,随机接入响应消息中的MAC PDU可以称为RAR MAC PDU,在RAR MAC PDU中携带第一指示信息,用于指示UE判定是否执行2 step RACH到4 step RACH的回落。。
方式二:
所述终端从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
这里,在寻呼(paging)消息中携带第一指示信息,或者,在paging DCI中携带第一指示信息,用于指示UE判定是否执行2 step RACH到4 step RACH的回落。
本申请实施例中,UE的AC值,也可以指示UE判断是否执行2 step RACH到4step RACH的回落,举个例子,基于AC bitmap确定UE的AC值对应的比特位为1,代表该UE能够执行2 step RACH,也即:该AC值指示UE判断是否执行2 step RACH 到4 step RACH的回落。如果UE接收到网络设备发送的第一指示信息,且该UE的AC值也指示需要判断是否执行2 step RACH到4 step RACH的回落,则UE根据系统广播中的随机数字判断是否执行2 step RACH,例如:UE随机产生一个0到1的数字,然后与系统广播中配置的随机数字比较,如果UE产生的数字大于系统广播中的数字,则UE回退到4 step RACH,否则继续执行2 step RACH。
需要说明的是,每个用户都被随机分配一个0到9的AC值,该AC值存储在SIM卡中,对于一些特殊的用户可以拥有一个或多个11到15的AC值,同样被存储在SIM卡中,拥有11到15的AC值的用户一般具有较高的优先级,然而,AC值的大小并不代表优先级顺序。
图6为本申请实施例提供的负荷控制方法的流程示意图三,如图6所示,所述负荷控制方法包括以下步骤:
步骤601:网络设备检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值,则所述网络设备向所述终端发送第一指示信息,所述第一指示信息指示所述终端执行从两步随机接入过程到四步随机接入过程的切换。
本申请实施例中,网络设备可以是基站,例如5G中的gNB,4G中的eNB。
本申请实施例中,当网络侧检测到2 step RACH的PRACH负荷较高时,网络侧发送第一指示信息给UE,指示UE执行2 step RACH到4 step RACH的回落。
本申请实施例中,所述网络设备可以通过以下两种方式中的任意一种方式向所述终端发送第一指示信息:
方式一:
所述网络设备在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
进一步,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。这里,随机接入响应消息中的MAC PDU可以称为RAR MAC PDU,在RAR MAC PDU中携带第一指示信息,用于指示UE执行2 step RACH到4 step RACH的回落。
方式二:
所述网络设备在向所述终端发送的寻呼消息或寻呼DCI中携带所述第一指示信息。
这里,在寻呼(paging)消息中携带第一指示信息,或者,在paging DCI中携带第一指示信息,用于指示UE执行2 step RACH到4 step RACH的回落。
图7为本申请实施例提供的负荷控制方法的流程示意图四,如图7所示,所述负荷控制方法包括以下步骤:
步骤701:终端接收网络设备发送的第一指示信息;所述终端基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换。
本申请实施例中,网络设备可以是基站,例如5G中的gNB,4G中的eNB。
这里,当网络侧检测到2 step RACH的PRACH负荷较高时,网络侧发送第一指示信息给UE,指示UE执行2 step RACH到4 step RACH的回落。
本申请实施例中,所述终端可以通过以下两种方式中的任意一种方式获得第一指示信息:
方式一:
所述终端从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
进一步,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。这里,随机接入响应消息中的MAC PDU可以称为RAR MAC PDU,在RAR MAC PDU中携带第一指示信息,用于指示UE执行2 step RACH到4 step RACH的回落。
方式二:
所述终端从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
这里,在寻呼(paging)消息中携带第一指示信息,或者,在paging DCI中携带第一指示信息,用于指示UE执行2 step RACH到4 step RACH的回落。
在一实施方式中,所述终端在当前的两步随机接入过程结束后,再次发起随机接入时,执行四步随机接入过程。
图8为本申请实施例提供的负荷控制装置的结构组成示意图一,应用于网络设备,例如基站,如图8所示,所述装置包括:
第一发送单元801,用于发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
在一实施方式中,所述装置还包括:
检测单元802,用于检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值;
第二发送单元803,用于向所述终端发送第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述第二发送单元803,用于在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
在一实施方式中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
在一实施方式中,所述第二发送单元803,用于在向所述终端发送的寻呼消息或寻呼DCI中携带所述第一指示信息。
在一实施方式中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
在一实施方式中,所述第一控制参数包括第一随机数;
所述判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换,包括:
如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;
如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
本领域技术人员应当理解,本申请实施例的上述负荷控制装置的相关描述可以参照本申请实施例的负荷控制方法的相关描述进行理解。
图9为本申请实施例提供的负荷控制装置的结构组成示意图二,应用于终端,如图9所示,所述装置包括:
第一接收单元901,用于接收网络设备发送的系统广播消息,所述系统广播消息中包括第一配置参数;
确定单元902,用于基于所述第一配置参数确定是否执行两步随机接入过程。
在一实施方式中,所述装置还包括:
第二接收单元903,用于接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述第二接收单元903,用于从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
在一实施方式中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
在一实施方式中,所述第二接收单元903,用于从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
在一实施方式中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
在一实施方式中,所述第一控制参数包括第一随机数;
所述确定单元902,用于如果接收到所述网络设备发送的第一指示信息,则所述终端基于所述第一配置参数确定是否执行两步随机接入过程。
在一实施方式中,所述确定单元902,用于如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
本领域技术人员应当理解,本申请实施例的上述负荷控制装置的相关描述可以参照本申请实施例的负荷控制方法的相关描述进行理解。
图10为本申请实施例提供的负荷控制装置的结构组成示意图三,应用于网络设备,例如基站,如图10所示,所述装置包括:
检测单元1001,用于检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值;
发送单元1002,用于向所述终端发送第一指示信息,所述第一指示信息指示所述终端执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述发送单元1002,用于在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
在一实施方式中,所述随机接入响应消息中携带所述第一指示信息,包括:
所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
在一实施方式中,所述发送单元1002,用于在向所述终端发送的寻呼消息或寻呼DCI中携带所述第一指示信息。
本领域技术人员应当理解,本申请实施例的上述负荷控制装置的相关描述可以参照本申请实施例的负荷控制方法的相关描述进行理解。
图11为本申请实施例提供的负荷控制装置的结构组成示意图四,应用于终端,如图11所示,所述装置包括:
接收单元1101,用于接收网络设备发送的第一指示信息;
确定单元1102,用于基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换。
在一实施方式中,所述接收单元1101,用于从所述网络设备发送的随机接入响应消 息中获得所述第一指示信息。
在一实施方式中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
在一实施方式中,所述接收单元1101,用于从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
在一实施方式中,所述装置还包括:
随机接入单元1103,用于在当前的两步随机接入过程结束后,再次发起随机接入时,执行四步随机接入过程。
本领域技术人员应当理解,本申请实施例的上述负荷控制装置的相关描述可以参照本申请实施例的负荷控制方法的相关描述进行理解。
图12是本申请实施例提供的一种通信设备600示意性结构图。该通信设备可以是网络设备,或终端,图12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。
可选地,如图12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。
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。
可选地,如图12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。
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。
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。
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,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/终端实现的相应流程,为了简洁,在此不再赘述。
图13是本申请实施例的芯片的示意性结构图。图13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。
可选地,如图13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。
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。
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。
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。
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。
可选地,该芯片可应用于本申请实施例中的移动终端/终端,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/终端实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或 片上系统芯片等。
图14是本申请实施例提供的一种通信系统900的示意性框图。如图14所示,该通信系统900包括终端910和网络设备920。
其中,该终端910可以用于实现上述方法中由终端实现的相应的功能,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。
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。
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,本文描述的系统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。
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。
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。
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。
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,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/终端实现的相应流程,为了简洁,在此不再赘述。
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。
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。
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,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/终端实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
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。
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,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/终端实现的相应流程,为了简洁,在此不再赘述。
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。
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,上述描述的系统、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。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、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系统,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。
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。
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。
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。
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。

Claims (62)

  1. 一种负荷控制方法,所述方法包括:
    网络设备发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
  2. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述网络设备检测到用于执行两步随机接入过程的物理随机接入信道PRACH负荷超过第一门限值,则所述网络设备向所述终端发送第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。
  3. 根据权利要求2所述的方法,其中,所述网络设备向所述终端发送第一指示信息,包括:
    所述网络设备在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
  4. 根据权利要求3所述的方法,其中,所述随机接入响应消息中携带所述第一指示信息,包括:
    所述随机接入响应消息中的媒体接入控制协议数据单元MAC PDU中携带所述第一指示信息。
  5. 根据权利要求2所述的方法,其中,所述网络设备向所述终端发送第一指示信息,包括:
    所述网络设备在向所述终端发送的寻呼消息或者寻呼下行控制信息DCI中携带所述第一指示信息。
  6. 根据权利要求1至5任一项所述的方法,其中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
    所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
    所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
  7. 根据权利要求6所述的方法,其中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个接入控制AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
  8. 根据权利要求6或7所述的方法,其中,所述第一控制参数包括第一随机数;
    所述判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换,包括:
    如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;
    如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
  9. 一种负荷控制方法,所述方法包括:
    终端接收网络设备发送的系统广播消息,所述系统广播消息中包括第一配置参数;
    所述终端基于所述第一配置参数确定是否执行两步随机接入过程。
  10. 根据权利要求9所述的方法,其中,所述方法还包括:
    所述终端接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。
  11. 根据权利要求10所述的方法,其中,所述终端接收所述网络设备发送的第 一指示信息,包括:
    所述终端从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
  12. 根据权利要求11所述的方法,其中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  13. 根据权利要求10所述的方法,其中,所述终端接收所述网络设备发送的第一指示信息,包括:
    所述终端从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
  14. 根据权利要求9至13任一项所述的方法,其中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
    所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
    所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
  15. 根据权利要求14所述的方法,其中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
  16. 根据权利要求14或15所述的方法,其中,所述第一控制参数包括第一随机数;
    所述终端基于所述第一配置参数确定是否执行两步随机接入过程,包括:如果所述终端接收到所述网络设备发送的第一指示信息,则所述终端基于所述第一配置参数确定是否执行两步随机接入过程。
  17. 根据权利要求16所述的方法,其中,所述终端基于所述第一配置参数确定是否执行两步随机接入过程,包括:
    如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;
    如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
  18. 一种负荷控制方法,所述方法包括:
    网络设备检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值,则所述网络设备向所述终端发送第一指示信息,所述第一指示信息指示所述终端执行从两步随机接入过程到四步随机接入过程的切换。
  19. 根据权利要求18所述的方法,其中,所述网络设备向所述终端发送第一指示信息,包括:
    所述网络设备在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
  20. 根据权利要求19所述的方法,其中,所述随机接入响应消息中携带所述第一指示信息,包括:
    所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  21. 根据权利要求18所述的方法,其中,所述网络设备向所述终端发送第一指示信息,包括:
    所述网络设备在向所述终端发送的寻呼消息或者寻呼DCI中携带所述第一指示信息。
  22. 一种负荷控制方法,所述方法包括:
    终端接收网络设备发送的第一指示信息;
    所述终端基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换。
  23. 根据权利要求22所述的方法,其中,所述终端接收网络设备发送的第一指示信息,包括:
    所述终端从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
  24. 根据权利要求23所述的方法,其中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  25. 根据权利要求22所述的方法,其中,所述终端接收网络设备发送的第一指示信息,包括:
    所述终端从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
  26. 根据权利要求22至25任一项所述的方法,其中,所述终端基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换,包括:
    所述终端在当前的两步随机接入过程结束后,再次发起随机接入时,执行四步随机接入过程。
  27. 一种负荷控制装置,所述装置包括:
    第一发送单元,用于发送系统广播消息,所述系统广播消息中包括第一配置参数,所述第一配置参数用于控制终端是否执行两步随机接入过程。
  28. 根据权利要求27所述的装置,其中,所述装置还包括:
    检测单元,用于检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值;
    第二发送单元,用于向所述终端发送第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。
  29. 根据权利要求28所述的装置,其中,所述第二发送单元,用于在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
  30. 根据权利要求29所述的装置,其中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  31. 根据权利要求28所述的装置,其中,所述第二发送单元,用于在向所述终端发送的寻呼消息或寻呼DCI中携带所述第一指示信息。
  32. 根据权利要求27至31任一项所述的装置,其中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
    所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
    所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
  33. 根据权利要求32所述的装置,其中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
  34. 根据权利要求32或33所述的装置,其中,所述第一控制参数包括第一随机数;
    所述判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换,包括:
    如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;
    如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
  35. 一种负荷控制装置,所述装置包括:
    第一接收单元,用于接收网络设备发送的系统广播消息,所述系统广播消息中包括第一配置参数;
    确定单元,用于基于所述第一配置参数确定是否执行两步随机接入过程。
  36. 根据权利要求35所述的装置,其中,所述装置还包括:
    第二接收单元,用于接收所述网络设备发送的第一指示信息,所述第一指示信息用于指示所述终端判断是否执行从两步随机接入过程到四步随机接入过程的切换。
  37. 根据权利要求36所述的装置,其中,所述第二接收单元,用于从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
  38. 根据权利要求37所述的装置,其中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  39. 根据权利要求36所述的装置,其中,所述第二接收单元,用于从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
  40. 根据权利要求35至39任一项所述的装置,其中,所述第一配置参数包括第二指示信息和第一控制参数,其中,
    所述第二指示信息用于指示所述终端是否能够执行两步随机接入过程;
    所述第一控制参数用于在所述第二指示信息指示所述终端能够执行两步随机接入过程的情况下,判定所述终端是否执行从两步随机接入过程到四步随机接入过程的切换。
  41. 根据权利要求40所述的装置,其中,所述第二指示信息包括第一位图,所述第一位图中的每个比特位对应一个AC值,所述比特位的取值用于指示该比特位对应的AC值的终端是否能够执行两步随机接入过程。
  42. 根据权利要求40或41所述的装置,其中,所述第一控制参数包括第一随机数;
    所述确定单元,用于如果接收到所述网络设备发送的第一指示信息,则所述终端基于所述第一配置参数确定是否执行两步随机接入过程。
  43. 根据权利要求42所述的装置,其中,所述确定单元,用于如果所述终端生成的第二随机数大于等于所述第一随机数,则确定所述终端执行从两步随机接入过程到四步随机接入过程的切换;如果所述终端生成的第二随机数小于所述第一随机数,则确定所述终端执行两步随机接入过程。
  44. 一种负荷控制装置,所述装置包括:
    检测单元,用于检测到用于执行两步随机接入过程的PRACH负荷超过第一门限值;
    发送单元,用于向所述终端发送第一指示信息,所述第一指示信息指示所述终端执行从两步随机接入过程到四步随机接入过程的切换。
  45. 根据权利要求44所述的装置,其中,所述发送单元,用于在向所述终端发送的随机接入响应消息中携带所述第一指示信息。
  46. 根据权利要求45所述的装置,其中,所述随机接入响应消息中携带所述第一指示信息,包括:
    所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  47. 根据权利要求44所述的装置,其中,所述发送单元,用于在向所述终端发送的寻呼消息或寻呼DCI中携带所述第一指示信息。
  48. 一种负荷控制装置,所述装置包括:
    接收单元,用于接收网络设备发送的第一指示信息;
    确定单元,用于基于所述第一指示信息确定执行从两步随机接入过程到四步随机接入过程的切换。
  49. 根据权利要求48所述的装置,其中,所述接收单元,用于从所述网络设备发送的随机接入响应消息中获得所述第一指示信息。
  50. 根据权利要求49所述的装置,其中,所述随机接入响应消息中的MAC PDU中携带所述第一指示信息。
  51. 根据权利要求48所述的装置,其中,所述接收单元,用于从所述网络设备发送的寻呼消息或者寻呼DCI中获得所述第一指示信息。
  52. 根据权利要求48至51任一项所述的装置,其中,所述装置还包括:
    随机接入单元,用于在当前的两步随机接入过程结束后,再次发起随机接入时,执行四步随机接入过程。
  53. 一种网络设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至8中任一项所述的方法,或者权利要求18至21中任一项所述的方法。
  54. 一种终端,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9至17中任一项所述的方法,或者权利要求22至26中任一项所述的方法。
  55. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至8中任一项所述的方法,或者权利要求18至21中任一项所述的方法。
  56. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求9至17中任一项所述的方法,或者权利要求22至26中任一项所述的方法。
  57. 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至8中任一项所述的方法,或者权利要求18至21中任一项所述的方法。
  58. 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求9至17中任一项所述的方法,或者权利要求22至26中任一项所述的方法。
  59. 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至8中任一项所述的方法,或者权利要求18至21中任一项所述的方法。
  60. 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求9至17中任一项所述的方法,或者权利要求22至26中任一项所述的方法。
  61. 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至8中任一项所述的方法,或者权利要求18至21中任一项所述的方法。
  62. 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求9至17中任一项所述的方法,或者权利要求22至26中任一项所述的方法。
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