WO2018028662A1 - Procédé et appareil de commande d'accès aléatoire - Google Patents

Procédé et appareil de commande d'accès aléatoire Download PDF

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Publication number
WO2018028662A1
WO2018028662A1 PCT/CN2017/097033 CN2017097033W WO2018028662A1 WO 2018028662 A1 WO2018028662 A1 WO 2018028662A1 CN 2017097033 W CN2017097033 W CN 2017097033W WO 2018028662 A1 WO2018028662 A1 WO 2018028662A1
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WO
WIPO (PCT)
Prior art keywords
base station
identifier
terminal device
access
information
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PCT/CN2017/097033
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English (en)
Chinese (zh)
Inventor
苗金华
权威
张戬
曾清海
王宏
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华为技术有限公司
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Publication of WO2018028662A1 publication Critical patent/WO2018028662A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a random access control method and apparatus.
  • the random access (RA) process refers to a process from when a user sends a random access preamble to try to access the network to establish a basic signaling connection with the network.
  • RA random access
  • data can be transmitted and received through the base station 2, and the UE needs to communicate with a plurality of base stations to acquire services of a plurality of base stations.
  • the UE when the UE communicates with multiple base stations, the UE needs to perform a random access procedure multiple times to separately acquire the time advance TA of each base station and the cell radio network temporary identity (C- RNTI), resulting in long random access time and low random access efficiency before the UE establishes a connection with multiple base stations.
  • C- RNTI cell radio network temporary identity
  • a random access control method and apparatus are provided to solve the problem of long random access time and low random access efficiency before a UE establishes a connection with multiple base stations in the prior art.
  • the embodiment of the present invention provides a random access control method, which is applied to a first base station that communicates with at least one second base station, including: The first base station receives the first identifier information of the terminal device, the first base station determines first access assistance information, and the first access assistance information corresponds to the first identifier information; the first base station Transmitting, to the at least one second base station, a first access request message carrying the first identifier information; the first base station receiving a response message sent by any one of the second base stations, the response message and the Corresponding to the first access request message; the first base station determines second access assistance information according to the response message, where the second access assistance information is determined by the second base station for the terminal device; a base station sends a first random access response message to the terminal device, where the first random access response message includes the first access assistance information and the second access assistance message .
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first time advance of the first base station
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station.
  • the first access assistance information includes at least a first timing advance of the first base station, and the second access assistance information at least includes: a second timing advance of the second base station; the method further includes: when the first base station receives the terminal device, sending a contention resolution acknowledgement response message The first base station determines a first C-RNTI, where the first C-RNTI is corresponding to the first identifier information, and the first base station sends, to the second base station, a first identifier that carries the first identifier information.
  • the first base station receiving the second C-RNTI of the second base station, where the second C-RNTI is determined by the second base station according to the second access request message for the terminal device
  • the first base station sends the first C-RNTI and the second C-RNTI to the terminal device.
  • the first access message includes a first preamble identifier that is allocated by the first base station to the terminal device; the first base station receives a terminal device identifier that is sent by the terminal device, and the first The first preamble corresponding to the first preamble identifier, the first preamble identifier, or the first preamble corresponding to the first preamble identifier is the terminal device First identification information.
  • a second aspect provides a random access control method, which is applied to a terminal device that communicates with a plurality of base stations, where the multiple base stations include: a first base station and at least one second base station, including: the terminal device The first base station sends the first identifier information, and sends the second identifier information to the at least one second base station; the terminal device receives the first random access response message sent by the first base station, the first random The access response message includes the first access assistance information and the second access assistance information, where the first access assistance information is determined by the first base station for the terminal device according to the first identification information, where The second access assistance information is determined by the second base station for the terminal device according to the second identifier information and the first identifier information.
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first time advance of the first base station
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station.
  • the first access assistance information includes at least a first timing advance of the first base station
  • the second access assistance information includes at least: a second timing advance of the second base station
  • the method further includes: when the terminal device determines that the contention conflict is resolved, the terminal device sends a contention resolution acknowledgement response message to the first base station; the terminal device receives the The first C-RNTI and the second C-RNTI transmitted by the first base station.
  • the terminal device sends the first identifier information to the first base station, and sends the second identifier information to the at least one second base station, including
  • the terminal device receives the first access message sent by the first base station, and receives at least one second access message sent by the second base station, where the first access message includes the first base station a first preamble identifier that is allocated by the terminal device, where the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device; and the terminal device sends a terminal to the first base station
  • the device identifier and the first preamble corresponding to the first preamble identifier, and send the terminal device identifier and the second preamble corresponding to the second preamble identifier to the second base station.
  • a third aspect provides a random access control method, where the second base station is configured to receive the second identity information of the terminal device, where the second base station receives the second identity information.
  • a first access request message that is sent by the base station and carries the first identifier information; the second base station determines second access assistance information, where the second access assistance information is used by the second base station according to the Determining, by the second base station, the second base station sends a response message to the first base station, where the response message includes second access assistance information.
  • the second access assistance information is at least The second wireless network temporarily identifies the C-RNTI and the second timing advance of the second base station.
  • the second access assistance information includes at least a second timing advance of the second base station
  • the method further includes: when the second base station And receiving a second C-RNTI to the first base station when receiving the second access request message sent by the first base station.
  • the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device; the second base station receives the terminal device identifier sent by the terminal device, and the second preamble The second preamble corresponding to the code identifier; the second base station determines that the second preamble identifies the terminal device identifier or the second preamble corresponding to the second preamble identifier is the second terminal of the terminal device Identification information.
  • the embodiment of the present invention provides a random access control method, which is applied to a first base station that communicates with at least one second base station, where the method includes: the first base station receiving first identification information of the terminal device, Determining, by the first base station, first access assistance information, where the first access assistance information corresponds to the first identifier information; and sending, by the first base station, the at least one second base station a first access request message that identifies the information; the first base station sends a second random access response message to the terminal device, where the second random access response message includes the first access assistance information,
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first timing advance of the first base station.
  • the first access message includes a first preamble identifier that is allocated by the first base station to the terminal device, and the first base station receives the terminal device identifier sent by the terminal device and the first preamble
  • an embodiment of the present invention provides a random access control method, which is applied to a terminal device that communicates with multiple base stations, where the multiple base stations include: a first base station and at least one second base station, including: The terminal device sends the first identifier information to the first base station, and sends the second identifier information to the at least one second base station; the terminal device receives the second random access response message and the third random access response message, The second random access response message is determined and sent by the first base station according to the first identifier information, and the third random access response message is used by the at least one second base station according to the second identifier information. And the first identifier information is determined and sent by the terminal device, where the second random access response message includes the first access assistance information, and the third random access response message includes The second access assistance information is described.
  • the terminal device sends the first identifier information to the first base station, and sends the second identifier information to the at least one second base station, including
  • the terminal device receives a first access message and a second access message, where the first access message is sent by the first base station, and the second access message is sent by at least one of the second base stations,
  • the first access message includes a first preamble identifier that is allocated by the first base station to the terminal device, and the second access message includes a second preamble that is allocated by the second base station to the terminal device.
  • the terminal device sends the terminal device identifier and the first preamble corresponding to the first preamble identifier to the first base station, and sends the terminal device identifier to the second base station and the second preamble
  • the code identifies the second preamble corresponding to the code.
  • the embodiment of the present invention provides a random access control method, which is applied to a second base station that communicates with a first base station, and includes: the second base station receives second identification information of the terminal device; Receiving, by the first base station, a first access request message carrying the first identifier information; the second base station determining second access assistance information, where the second access assistance information is by the second The base station determines, according to the second identifier information and the first identifier information, that the second access assistance information includes: a second radio network temporary identifier C-RNTI of the second base station, and a second base station a second time advancement amount; the second base station sends a third random access response message to the terminal device, where the third random access response message includes second access assistance information.
  • the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device; the second base station receives the terminal device identifier sent by the terminal device, and the second preamble The second preamble corresponding to the code identifier; the second base station determines that the second preamble identifier, the terminal device identifier, or the second preamble corresponding to the second preamble identifier is the Two identification information.
  • the embodiment of the present invention provides a random access control apparatus, which is applied to a first base station that communicates with at least one second base station, and includes: a receiving module, configured to receive first identifier information of the terminal device; a module, configured to determine first access assistance information, where the first access assistance information is corresponding to the first identifier information, and a sending module, configured to send, to the at least one second base station, the first identifier information a first access request message; the receiving module is further configured to receive a response message sent by any one of the second base stations, where the response message is corresponding to the first access request message; Determining, according to the response message, the second access assistance information, where the second access assistance information is determined by the second base station for the terminal device; the sending module is further configured to send the a random access response message, the first random access response message including the first access assistance information and the second access assistance information.
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first time advance of the first base station
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station.
  • the first access assistance information includes at least a first timing advance of the first base station, and the second access assistance information at least includes: a second timing advance of the second base station;
  • the processing module is further configured to: when receiving the contention acknowledgement response message sent by the terminal device, determine a first C-RNTI, the first C-RNTI and the first
  • the sending module is further configured to send, to the second base station, a second access request message that carries the first identifier information, where the receiving module is further configured to receive the second base station a second C-RNTI, where the second C-RNTI is determined by the second base station according to the second access request message, and the sending module is further configured to send the first to the terminal device C-RNTI and second C-RNTI.
  • the receiving module is further configured to: send, by the terminal device, a first access message, where the first access message includes the a first preamble identifier allocated by the first base station to the terminal device; a terminal device identifier sent by the terminal device, and a first preamble corresponding to the first preamble identifier; determining the first preamble
  • the code identifier, the terminal device identifier, or the first preamble corresponding to the first preamble identifier is the first identifier information of the terminal device.
  • an embodiment of the present invention provides a random access control apparatus, which is characterized in that it is applied to multiple bases.
  • the terminal device of the station communication the multiple base stations include: a first base station and at least one second base station, including: a sending module, configured to send first identifier information to the first base station, and to the at least one The second base station sends the second identification information, and the receiving module is configured to receive the first random access response message sent by the first base station, where the first random access response message includes the first access assistance information and the second Accessing the auxiliary information, where the first access assistance information is determined by the first base station according to the first identification information, and the second access assistance information is used by the second base station according to the The second identification information and the first identification information are determined by the terminal device.
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first time advance of the first base station
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station.
  • the first access assistance information includes at least a first timing advance of the first base station, and the second access assistance information at least includes: a second timing advance of the second base station; the method further includes: the sending module, configured to: when determining a contention conflict resolution, send a contention resolution acknowledgement response message to the first base station; Receiving, by the first base station, the first C-RNTI and the second C-RNTI.
  • the terminal device sends the first identifier information to the first base station, and sends the second identifier information to the at least one second base station, including
  • the receiving module is further configured to receive a first access message sent by the first base station, and receive at least one second access message sent by the second base station, where the first access message includes the a first preamble identifier that is allocated by the first base station to the terminal device, where the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device, and the sending module is further used to Transmitting, to the first base station, a terminal device identifier and a first preamble corresponding to the first preamble identifier, and transmitting, to the second base station, a terminal device identifier and the identifier corresponding to the second preamble identifier Second preamble.
  • the embodiment of the present invention provides a random access control apparatus, which is applied to a second base station that communicates with the first base station, and includes: a receiving module, configured to receive second identification information of the terminal device; and the receiving module And a method for receiving, by the first base station, a first access request message that carries the first identifier information, where the processing module is configured to determine second access assistance information, where the second access assistance information is The second base station is determined according to the first identifier information and the second identifier information, and the sending module is configured to send a response message to the first base station, where the response message includes second access assistance information.
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI and a second timing advance of the second base station.
  • the second access assistance information includes at least a second timing advance of the second base station
  • the sending module is further configured to receive the When the second access request message sent by the first base station is used, the second C-RNTI is sent to the first base station.
  • the receiving module is further configured to: send a second access message to the terminal device, where the second access message includes the a second preamble identifier that is allocated by the second base station to the terminal device; a terminal device identifier that is sent by the terminal device and a second preamble corresponding to the second preamble identifier; and the second preamble identifier is determined.
  • the terminal device identifier or the second preamble corresponding to the second preamble identifier is the second identifier information of the terminal device.
  • a tenth aspect of the present invention provides a random access control apparatus, which is applied to communicate with at least one second base station.
  • the first base station of the message the device includes: a processing module, configured to receive first identification information of the terminal device, and determine first access assistance information, where the first access assistance information corresponds to the first identification information a sending module, configured to send, to the at least one of the second base stations, a first access request message that carries the first identifier information, where the sending module is further configured to send a second random access to the terminal device
  • the second random access response message includes the first access assistance information
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first base station The first time advance.
  • the processing module is further configured to: send a first access message to the terminal device, where the first access message includes the a first preamble identifier that is allocated by the first base station to the terminal device; a terminal device identifier that is sent by the terminal device, and a first preamble corresponding to the first preamble identifier; and the first preamble identifier is determined.
  • the first preamble corresponding to the terminal device identifier or the first preamble identifier is the first identifier information of the terminal device.
  • an embodiment of the present invention provides a random access control apparatus, which is applied to a terminal device that communicates with multiple base stations, where the multiple base stations include: a first base station and at least one second base station, including: sending a module, configured to send first identifier information to the first base station, and send second identifier information to the at least one second base station, where the receiving module is configured to receive the second random access response message and the third random access a response message, the second random access response message is determined and sent by the first base station according to the first identifier information, and the third random access response message is used by the at least one second base station according to the The second identification information and the first identification information are determined and sent by the terminal device, where the second random access response message includes the first access assistance information, where the third random access response message is included.
  • the second access assistance information is included.
  • the sending module is further configured to: receive a first access message and a second access message, where the first access message is configured by The first base station sends, the second access message is sent by at least one of the second base stations, and the first access message includes a first preamble identifier that is allocated by the first base station to the terminal device, where The second access message includes a second preamble identifier that is allocated by the second base station to the terminal device, and sends, to the first base station, a terminal device identifier and a first preamble corresponding to the first preamble identifier. And transmitting, to the second base station, a terminal device identifier and the second preamble corresponding to the second preamble identifier.
  • the twelfth aspect provides a random access control apparatus, which is applied to a second base station that communicates with the first base station, and includes: a receiving module, configured to receive second identification information of the terminal device; and the receiving module is further configured to: Receiving, by the first base station, a first access request message that carries the first identifier information, and a fourth processing module, configured to determine second access assistance information, where the second access assistance information is The second base station determines, according to the second identifier information and the first identifier information, that the second access assistance information includes: at least: a second radio network temporary identifier C-RNTI and a second base station a second time advancement amount of the second base station; a sending module, configured to send a third random access response message to the terminal device, where the third random access response message includes second access assistance information.
  • the receiving module is further configured to: send a second access message to the terminal device, where the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device; a terminal device identifier that is sent by the terminal device and a second preamble corresponding to the second preamble identifier; and the second preamble is determined.
  • the code identifier, the terminal device identifier, or the second preamble corresponding to the second preamble identifier is the second identifier information of the terminal device.
  • the technical solution provided by the embodiment of the present invention may include the following beneficial effects: the first base station and at least one of the present invention
  • the second base station may determine, according to the identifier information, the first access assistance information for accessing the first base station and the second access assistance information for accessing each second base station, respectively, according to the identifier information.
  • the first base station separately sends a first access request message including the first identification information to the at least one second base station, and after receiving the first access request message, any one of the second base stations returns the second carried to the first base station.
  • the first base station receives the response message of the auxiliary information, and finally the first base station returns a first random access response including the first access assistance information and the second access assistance information to the UE, when the first access assistance information and the second access
  • the UE may acquire access assistance information of multiple base stations at a time in a parallel manner, save time for random access, and improve the efficiency of random access.
  • the first base station determines the first C-RNTI for the UE, and again sends the first C-RNTI to the at least one second base station. And sending, by the second base station, the second C-RNTI determined by the second base station to the UE, after receiving the first access request message, and finally, the second base station returns the second C-RNTI determined by the second base station to the UE, and finally The first base station sends the first C-RNTI and the second C-RNTI to the UE together, so that the random access process can be avoided while saving the random access time and improving the efficiency of the random access. When it fails, premature allocation of C-RNTI causes waste of C-RNTI.
  • the first base station may directly send the third random access response including the first access assistance information to the UE, and the second base station may directly The UE sends the second random access response that includes the second access assistance information, so that the time of the random access is saved, the efficiency of the random access is improved, and the load of the first base station is prevented from being excessive.
  • FIG. 1 is a schematic diagram of a network architecture that can be applied to a random access control method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a random access control method according to an embodiment of the present invention.
  • step S101 in FIG. 2 is a schematic flow chart of step S101 in FIG. 2;
  • FIG. 4 is another schematic flowchart of a random access control method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another method for random access control according to an embodiment of the present disclosure.
  • step S201 in FIG. 5 is a schematic flow chart of step S201 in FIG. 5;
  • FIG. 7 is a schematic structural diagram of a first base station according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a second base station according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another first base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another second base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • connection control method provided by the embodiment of the present invention can be applied to an LTE (Long Term Evolution) communication system, such as TDD-LTE (Time Division Duplex Long Term Evolution) or FDD-LTE (Frequency Division Duplex).
  • Long Term Evolution, long-term evolution of frequency division duplex can also be applied to other communication systems, such as WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), GSM (Global System for Mobile Communication) and 5G (Fifth Generation).
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access
  • GSM Global System for Mobile Communication
  • 5G Fifth Generation
  • FIG. 1 is a schematic diagram of a network architecture that can be applied to a random access control method according to an embodiment of the present invention.
  • FIG. 1 includes: a terminal device UE 1 and an first base station 2 (evolved NodeB, eNB).
  • eNB evolved NodeB
  • the first base station 2 can be a central unit (CU, central
  • the eNB may also be a serving base station that provides a service for the UE after the UE currently establishes an RRC connection, where the central unit refers to the first base station 2 as a management node of the at least one second base station 3, and controls the configuration of the second base station.
  • the first base station 2 can manage the UEs under each second base station 3, manage the configuration information of each second base station 3, or manage the RRC (Radio Resource Control) between the second base station 3 and the UE.
  • the second base station 3 may be a small base station, a relay node, or a distributed unit (DU) including only a part of the protocol layer.
  • the UE when communicating with a plurality of base stations, the UE needs to acquire a time advance (TA) of each base station and a cell radio network temporary identifier (Cell Radio Network) by performing a random access procedure multiple times.
  • the Temporary Identifier (C-RNTI) causes the random access time of the UE and the multiple base stations to be too long, and the random access efficiency is low.
  • TA time advance
  • C-RNTI Cell Radio Network
  • step S101 the first base station receives first identification information of the terminal device, the first base station determines first access assistance information, and the second base station receives second identification information of the terminal device.
  • the first access assistance information is corresponding to the first identifier information
  • the first identifier information may be a preamble ID determined by the first base station according to the coverage, the preamble format, and the like.
  • the terminal device UE may carry the preamble (preamble) determined by the preamble identifier or the context information of the UE, and the context information of the UE may carry the terminal device identifier and the like that uniquely identify the UE.
  • the first base station may broadcast the first access message of the first base station to the terminal device UE, and then receive the first identifier information sent by the UE according to the first access message, etc., the first base station according to the first identifier.
  • Information for the UE And allocating the first access assistance information where the first access assistance information includes at least a first timing advance and a first C-RNTI, and may further include, according to the first timing advance and the first C-RNTI,
  • the first uplink transmission resource may refer to a time-frequency domain resource used in uplink transmission, and the like.
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station, where the second time advance amount and the second C-RNTI are included
  • the second uplink transmission resource of the second base station may also be included, and the second uplink transmission resource may refer to a time-frequency domain resource used for uplink transmission.
  • the first base station receives the first identifier information of the terminal device UE, and the second base station receives the second identifier information of the terminal device, which may include the following steps.
  • step S1011 the first base station sends a first access message to the terminal device.
  • the first access message includes a first preamble identifier that is allocated by the first base station to the UE, and the first access message may further include a system bandwidth and a system of the first base station. At least one of a center frequency point, an antenna parameter, a random access parameter, and a beam, the first preamble identifier may refer to a number ID of the preamble.
  • step S1012 the second base station sends a second access message to the terminal device.
  • the second access message includes a second preamble identifier that is allocated by the second base station to the UE, and the second access message may further include a system bandwidth and a system of the second base station. At least one of a center frequency point, an antenna parameter, a random access parameter, and a beam, and the second preamble identifier may refer to a number ID of the preamble.
  • the second base station may send a second access message to the UE in a broadcast manner; since the UE establishes a connection with the first base station, when the first base station is connected to the second base station, the second base station may also be the second The access message is sent to the first base station, and the first base station sends the second access message of the second base station to the UE by sending a configuration message; when the first base station is not connected to the second base station, the second base station may The second access message is sent to the core network device, and the core network device forwards the second access message to the first base station, and the first base station sends the second access message of the second base station to the UE by sending the configuration message.
  • step S1013 the terminal device sends first identification information to the first base station, and sends second identification information to the at least one second base station.
  • the first identifier information sent by the UE to the first base station and the second identifier information sent to each second base station may be the same identifier information in the time domain, the frequency domain, and the content.
  • the UE may send the first identifier information and the second identifier information in a broadcast manner, or may send the first identifier information to the first base station in the form of a packet, to at least one
  • the second base station sends the second identifier information
  • the first identifier information sent by the UE to the first base station and the second identifier information sent to each second base station may also be identifiers that are different in content and are in the same time domain or frequency domain.
  • the information, the first identifier information is a preamble ID, a preamble determined by the terminal device UE according to the preamble identifier, or context information of the UE.
  • the UE may select the downlink of the first base station in order to facilitate the calculation of the time advance of the first base station and the second base station. Timing, you can also choose GPS unified timing, or you can select the timing of the second base station.
  • the UE may send the identifier information in different subframes or time slots, or avoid the interference problem of multiple base stations, in order to prevent the UE from transmitting the identifier information to the maximum power.
  • the UE may send the identifier information in different frequency bands, which may be set according to actual needs, and is not specifically limited in the present invention.
  • the terminal device sends first identifier information to the first base station, and to the at least A second base station sends the second identification information, including the following steps.
  • the terminal device receives the first access message sent by the first base station, and receives at least one second access message sent by the second base station.
  • the sequence in which the UE receives the first access message sent by the first base station and the second access message sent by the second base station is not limited.
  • the UE may start timing every preset time interval. And then receiving the first access message and the second access message within a time period of the timer.
  • the first access message includes a first preamble identifier that is allocated by the first base station to the terminal device, and the second access message includes the second base station as the terminal.
  • the terminal device Transmitting, by the terminal device, the terminal device identifier and the first preamble corresponding to the first preamble identifier to the first base station, and sending the terminal device identifier and the second preamble identifier to the second base station Corresponding to the second preamble.
  • the UE may send the first preamble according to the first access information, for example, send the first preamble on the bandwidth centered on the center frequency of the system according to the antenna parameters and random access parameters of the first base station. And transmitting a second preamble according to the second access information, for example, transmitting a second preamble or the like on a bandwidth centered on a center frequency of the system according to antenna parameters and random access parameters of the second base station.
  • step S1014 the first base station receives the terminal device identifier sent by the terminal device, and the first preamble corresponding to the first preamble identifier.
  • step S1015 the first base station determines that the first preamble identifier, the terminal device identifier, or the first preamble corresponding to the first preamble identifier is the first identifier information of the terminal device.
  • step S1016 the second base station receives the terminal device identifier sent by the terminal device and a second preamble corresponding to the second preamble identifier.
  • step S1017 the second base station determines that the second preamble identifies the terminal device identifier or the second preamble corresponding to the second preamble identifier is the second identifier information of the terminal device.
  • sequence of steps S1011 and S1012 of the present invention, and the sequence of steps S1014 and S1016 are not limited.
  • step S102 the first base station sends a first access request message carrying the first identification information to at least one of the second base stations.
  • the first base station may send a first access request message to the at least one second base station that covers the UE in a packet broadcast manner, where the first access request message includes the first identifier information.
  • the step is to enable the second base station to match the first identifier information in the first access request with the second identifier information sent by the UE directly to the second base station, where the first identifier information in the first access request is When the two identifier information matches, the second base station determines the second access assistance information for the UE.
  • step S103 the second base station receives the first access request message that is sent by the first base station and carries the first identifier information.
  • the first access request message carries the first identifier information.
  • step S104 the second base station determines second access assistance information.
  • the second access assistance information is determined by the second base station according to the first identifier information and the second identifier information, and the second access assistance information at least includes:
  • the wireless network temporarily identifies the second timing advance of the C-RNTI and the second base station, and may further include, based on the second timing advance and the second C-RNTI, The second uplink transmission resource is included.
  • the second base station matches the first identifier information in the first access request sent by the first base station with the second identifier information sent by the UE directly to the second base station, where the first identifier information and the first identifier information The two identification information matches, indicating that the first identification information and the second identification information correspond to the same UE. In this case, the second base station determines the second access assistance information for the UE.
  • the specific matching manner is: first, the content of the first identifier information and the second identifier information are matched. For example, when the first identifier information and the second identifier information are both preambles, it can be determined whether the two preambles are the same. When the preambles are the same, the first identifier information and the second identifier information may be determined to be matched; when the content of the first identifier information and the second identifier information are different, the matching may be performed in the time domain or the frequency domain, for example, when the transmission is performed.
  • the subframe identifying the information is the same as the subframe transmitting the second identifier information, and determining that the first identifier information and the second identifier information match.
  • step S105 the second base station sends a response message to the first base station.
  • the response message includes second access assistance information.
  • step S106 the first base station receives a response message sent by any one of the second base stations.
  • the response message is corresponding to the first access request message; the first base station determines second access assistance information according to the response message, and the second access assistance information is The second base station determines the terminal device.
  • step S107 the first base station sends a first random access response message to the terminal device.
  • the first random access response message includes the first access assistance information and the second access assistance information.
  • the first base station may generate a first random access response message including the first access assistance information and the second access assistance information, and then send the first message to the UE. Random access response message.
  • step S108 the terminal device receives the first random access response message sent by the first base station.
  • the first random access response message includes first access assistance information and second access assistance information, where the first access assistance information is used by the first base station according to the The first identifier information is determined by the terminal device, and the second access assistance information is determined by the second base station for the terminal device according to the second identifier information and the first identifier information.
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first timing advance of the first base station, where the first timing advance and the first C-RNTI are included.
  • the first uplink transmission resource of the first base station may be further included: the second access assistance information includes: a second radio network temporary identifier C-RNTI of the second base station, and a second timing advance of the second base station, where The second uplink transmission resource of the second base station may also be included on the basis of the second timing advance and the second C-RNTI.
  • the UE may perform a subsequent data transmission and reception process with the first base station according to the first access assistance information, and according to The second access assistance information and the second base station perform a subsequent data transmission process, for example, performing an RRC connection establishment procedure, an RRC connection reestablishment procedure, or adding a secondary cell.
  • sequence of steps S1011 and S1012 of the present invention, and the sequence of steps S1014 and S1016 are not limited.
  • the first access assistance information in the step S101 includes at least a first timing advance of the first base station; and the second access assistance information includes at least: a second base station Two time advances.
  • the method further includes the following steps.
  • step S109 when the terminal device determines that the contention conflict is resolved, the terminal device sends a contention resolution acknowledgement response message to the first base station.
  • the method may further include: sending, by the UE, the Msg3 to the first base station according to the first random access response message;
  • the first base station When the first base station receives the Msg3 sent by the UE according to the first random access response message; the first base station sends Msg4 to the UE.
  • the Msg3 refers to the Msg3 in the random access process, and the Msg3 may include different content according to different scenarios, such as an RRC connection setup request or an RRC reestablishment request, and the Msg3 carries a UE-specific ID for Differentiating different UEs, in the case of initial access, this ID may be the S-TMSI of the UE (if any) or a randomly generated 40-bit value, and the UE shall immediately start the contention cancellation timing after the Msg3 message is sent.
  • the device is configured to monitor whether the first base station returns Msg4.
  • Msg4 can refer to Msg4 in the random access process. When Msg4 corresponds to different random access scenarios, it can also be different content. The purpose of Msg4 is to solve the contention conflict.
  • the UE uses C- The RNTI performs a PDCCH (Physical Downlink Control Channel), and after the random access procedure succeeds, the UE can determine the C-RNTI as a fixed C-RNTI, that is, the UE will continue to use the C-RNTI.
  • the scrambling code of the PDCCH is subsequently decoded to receive the data.
  • the UE After receiving the Msg4, the UE determines whether the UE-specific ID carried in the conflict resolution message is the same as the UE-specific ID in the scheduled transmission request message sent by the UE. If the two are the same, the UE may determine that the contention conflict is resolved.
  • the UE sends a contention resolution acknowledgement response message to the first base station, and the contention resolution acknowledgement response message may include an ACK value or the like.
  • step S110 when the first base station receives the contention resolution acknowledgement response message returned by the UE according to the conflict resolution message, the first base station determines the first C-RNTI.
  • the first C-RNTI is corresponding to the first identifier information
  • the first base station determines, according to the first identifier information, that the first C-RNTI is determined by the UE,
  • the first uplink transmission resource and the like can be determined.
  • step S111 the first base station sends a second access request message carrying the first identification information to the second base station.
  • the step is to enable the second base station to match the first identifier information in the first access request with the second identifier information sent by the UE directly to the second base station, where the first identifier information in the first access request is When the two identification information matches, the second base station determines a second C-RNTI for the UE.
  • step S112 when the second base station receives the second access request message sent by the first base station, the second base station sends a second C-RNTI to the first base station.
  • the second base station matches the first identifier information in the second access request sent by the first base station with the second identifier information sent by the UE directly to the second base station, where the first identifier information is The second identifier information is matched, indicating that the first identifier information and the second identifier information correspond to the same UE. In this case, the second base station determines the second C-RNTI for the UE.
  • the second base station may further determine a second uplink transmission resource or the like on the basis of determining the second C-RNTI.
  • the specific matching manner is to first match the content of the first identification information and the second identification information, for example, when the first standard When both the identification information and the second identification information are preambles, it can be determined whether the two preambles are the same. When the two preambles are the same, it can be determined that the first identification information and the second identification information match; when the first identification information and the first When the content of the second identifier information is different, the matching may be performed in the time domain or the frequency domain respectively. For example, when the subframe for transmitting the first identifier information and the subframe for transmitting the second identifier information are the same, the first identifier information may also be determined. The second identification information matches.
  • step S113 the first base station receives the second C-RNTI of the second base station.
  • the second C-RNTI is determined by the second base station according to the second access request message for the terminal device.
  • step S114 the first base station sends the first C-RNTI and the second C-RNTI to the UE.
  • step S115 the UE receives the first C-RNTI and the second C-RNTI sent by the first base station.
  • the UE may perform a subsequent data transmission and reception process with the first base station according to the first C-RNTI, and perform subsequent operations according to the second C-RNTI and the second base station.
  • the data transmission process for example, performing an RRC connection establishment process, an RRC connection re-establishment process, or adding a secondary cell, etc., when the UE further receives the first uplink transmission resource and the second uplink transmission resource, may use the first uplink transmission resource and the first The base station transmits data, and uses the second uplink transmission resource to transmit data with the second base station.
  • a random access control method is provided, and the method includes the following steps.
  • step S201 the first base station receives first identification information of the terminal device, the first base station determines first access assistance information, and the second base station receives second identification information of the terminal device.
  • the first access assistance information corresponds to the first identification information.
  • the first base station receives the first identification information of the terminal device
  • the second base station receives the second identification information of the terminal device, including the following steps.
  • step S2011 the first base station sends a first access message to the terminal device.
  • the first access message includes a first preamble identifier that is allocated by the first base station to the terminal device.
  • step S2012 the second base station sends a second access message to the terminal device.
  • the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device.
  • step S2013 the terminal device sends first identifier information to the first base station, and sends second identifier information to the at least one second base station.
  • the first identifier information sent by the UE to the first base station and the second identifier information sent to each second base station may be the same identifier information in the time domain, the frequency domain, and the content.
  • the UE may send the first identifier information and the second identifier information in a broadcast manner, or may send the first identifier information to the first base station in the form of a packet, to at least one
  • the second base station sends the second identifier information
  • the first identifier information sent by the UE to the first base station and the second identifier information sent to each second base station may also be identifiers that are different in content and are in the same time domain or frequency domain.
  • the information, the first identifier information is a preamble ID, a preamble determined by the UE according to the preamble identifier, or context information of the UE.
  • the UE may select the downlink timing of the base station to facilitate the calculation of the time advance of the first base station and the second base station. It is also possible to select GPS unified timing or to select the timing of the second base station.
  • the UE may send the identifier information in different subframes or time slots, or avoid the interference problem of multiple base stations, in order to prevent the UE from transmitting the identifier information to the maximum power.
  • the UE may send the identifier information in different frequency bands, which may be set according to actual needs, and is not specifically limited in the present invention.
  • the terminal device sends the first identifier information to the first base station, and sends the second identifier information to the at least one second base station, including the following steps.
  • the terminal device receives a first access message and a second access message, where the first access message is sent by the first base station, and the second access message is sent by at least one of the second base stations, where the An access message includes a first preamble identifier that is allocated by the first base station to the terminal device, and the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device. ;
  • the terminal device Transmitting, by the terminal device, the terminal device identifier and the first preamble corresponding to the first preamble identifier to the first base station, and sending the terminal device identifier and the second preamble identifier to the second base station Corresponding to the second preamble.
  • step S2014 the first base station receives the terminal device identifier sent by the terminal device and a first preamble corresponding to the first preamble identifier.
  • step S2015 the first base station determines that the first preamble identifier, the terminal device identifier, or the first preamble corresponding to the first preamble identifier is the first identifier information of the terminal device.
  • step S2016 the second base station receives the terminal device identifier sent by the terminal device and a second preamble corresponding to the second preamble identifier.
  • step S2017 the second base station determines that the second preamble identifier, the terminal device identifier, or the second preamble corresponding to the second preamble identifier is the second identifier information of the terminal device.
  • Steps S2011 to S2017 are similar to steps S1011 to S1017 and will not be described in detail herein.
  • step S202 the first base station sends a first access request message carrying the first identifier information to at least one of the second base stations.
  • the step is to enable the second base station to match the first identifier information in the first access request with the second identifier information sent by the UE directly to the second base station, where the first identifier information in the first access request is When the two identifier information matches, the second base station determines the second access assistance information for the UE.
  • step S203 the second base station receives the first access request message that is sent by the first base station and carries the first identifier information.
  • step S204 the second base station determines second access assistance information.
  • the second access assistance information is determined by the second base station for the terminal device according to the second identifier information and the first identifier information, and the second access assistant information And at least comprising: the second radio network temporary identifier C-RNTI of the second base station and the second timing advance of the second base station, and further including the second uplink on the basis of the second timing advance and the second C-RNTI Transfer resources, etc.
  • the second base station matches the first identifier information in the first access request sent by the first base station with the second identifier information sent by the UE directly to the second base station, where the first identifier information and the first identifier information The two identification information matches, indicating that the first identification information and the second identification information correspond to the same UE. In this case, the second base station determines the second access assistance information for the UE.
  • the specific matching manner is to first match the content of the first identification information and the second identification information, for example, when the first standard When both the identification information and the second identification information are preambles, it can be determined whether the two preambles are the same. When the two preambles are the same, it can be determined that the first identification information and the second identification information match; when the first identification information and the first When the content of the second identifier information is different, the matching may be performed in the time domain or the frequency domain respectively. For example, when the subframe for transmitting the first identifier information and the subframe for transmitting the second identifier information are the same, the first identifier information may also be determined. The second identification information matches.
  • step S205 the second base station sends a third random access response message to the terminal device.
  • the third random access response message includes second access assistance information.
  • the second base station after receiving the first access request message of the first base station, the second base station sends a third random access response message including the second access assistance information to the UE directly, so as to avoid overloading the first base station. Heavy situation.
  • step S206 the first base station sends a second random access response message to the terminal device.
  • the second random access response message includes the first access assistance information
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and
  • the first timing advance of the first base station may further include a first uplink transmission resource or the like on the basis of the first timing advance and the first C-RNTI.
  • step S207 the terminal device receives the second random access response message and the third random access response message.
  • the second random access response message is determined and sent by the first base station according to the first identifier information
  • the third random access response message is sent by the at least one second base station. Determining and transmitting, according to the second identifier information and the first identifier information, the second random access response message includes the first access assistance information, and the third random access The second access assistance information is included in the incoming response message.
  • the UE may perform a subsequent data transmission and reception process with the first base station according to the first access assistance information, and according to the second access assistance information and The second uplink transmission resource of the second base station and the second base station perform a subsequent data transmission process, for example, performing an RRC connection establishment procedure, an RRC connection reestablishment procedure, or adding a secondary cell.
  • sequence of steps S2011 and S2012, the sequence of steps S2014 and S2016, and the sequence of steps S205 and S206 are not limited.
  • a random access control apparatus is provided, which is applied to a first base station that communicates with at least one second base station, and includes: a receiving module 11, a processing module 12, and a sending module. 13.
  • the receiving module 11 is configured to receive first identifier information of the terminal device.
  • the processing module 12 determines first access assistance information, where the first access assistance information corresponds to the first identification information.
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first timing advance of the first base station.
  • the sending module 13 is configured to send, to the at least one second base station, a first access request message that carries the first identifier information.
  • the receiving module 11 is further configured to receive a response message sent by any one of the second base stations, where the response message corresponds to the first access request message.
  • the processing module 12 is further configured to determine second access assistance information according to the response message, where the second access assistance information is determined by the second base station for the terminal device.
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station.
  • the sending module 13 is further configured to send a first random access response message to the terminal device, where the first random access response message includes the first access assistance information and second access assistance information.
  • the first access assistance information includes at least a first timing advance of the first base station; and the second access assistance information is at least The second time advance amount of the second base station is included;
  • the processing module is further configured to: when receiving the contention acknowledgement response message sent by the terminal device, determine a first C-RNTI, where the first C-RNTI corresponds to the first identifier information;
  • the sending module is further configured to send, to the second base station, a second access request message that carries the first identifier information
  • the receiving module is further configured to receive the second C-RNTI of the second base station, where the second C-RNTI is determined by the second base station according to the second access request message for the terminal device;
  • the sending module is further configured to send the first C-RNTI and the second C-RNTI to the terminal device.
  • the receiving module is further configured to:
  • the terminal device identifier Determining, by the first preamble identifier, the terminal device identifier, or the first preamble corresponding to the first preamble identifier, the first identifier information of the terminal device.
  • a random access control apparatus is further provided, which is applied to a terminal device that communicates with multiple base stations, where the multiple base stations include: a first base station and at least A second base station includes:
  • the sending module 21 is configured to send first identifier information to the first base station, and send second identifier information to the at least one second base station;
  • the receiving module 22 is configured to receive a first random access response message that is sent by the first base station, where the first random access response message includes first access assistance information and second access assistance information,
  • the first access assistance information is determined by the first base station according to the first identifier information
  • the second access assistance information is used by the second base station according to the second identifier information and the first
  • the identification information is determined by the terminal device.
  • the first access assistance information includes at least a first radio network temporary identifier C-RNTI of the first base station and a first timing advance of the first base station; and the second access assistance information is at least The second wireless network temporarily identifies the C-RNTI of the second base station and the second timing advance of the second base station.
  • the first access assistance information includes at least a first timing advance of the first base station; and the second access assistance information is at least The second time advance amount of the second base station is included;
  • the sending module is further configured to: when determining a contention conflict resolution, send a contention resolution confirmation response message to the first base station;
  • the receiving module is further configured to receive the first C-RNTI and the second C-RNTI that are sent by the first base station.
  • the terminal device sends first identifier information to the first base station, and sends a second identifier to the at least one second base station.
  • Information including:
  • the receiving module is further configured to receive a first access message sent by the first base station, and receive at least one second access message sent by the second base station, where the first access message includes the a base station allocates the terminal device a first preamble identifier, where the second access message includes a second preamble identifier assigned by the second base station to the terminal device;
  • the sending module is further configured to send, to the first base station, a terminal device identifier and a first preamble corresponding to the first preamble identifier, and send, to the second base station, a terminal device identifier and the The second preamble identifies the second preamble corresponding to the second preamble.
  • a random access control apparatus is further provided, which is applied to a second base station that communicates with the first base station, and includes:
  • the receiving module 31 is configured to receive second identification information of the terminal device.
  • the receiving module 31 is further configured to receive a first access request message that is sent by the first base station and that carries the first identifier information.
  • the processing module 32 is configured to determine second access assistance information, where the second access assistance information is determined by the second base station according to the first identifier information and the second identifier information;
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI and a second timing advance of the second base station.
  • the sending module 33 is configured to send a response message to the first base station, where the response message includes second access assistance information.
  • the second access assistance information includes at least a second timing advance of the second base station
  • the sending module is further configured to: when receiving the second access request message sent by the first base station, send the second C-RNTI to the first base station.
  • the receiving module is further configured to:
  • Determining that the second preamble identifies the terminal device identifier or the second preamble corresponding to the second preamble identifier is the second identifier information of the terminal device.
  • a random access control apparatus is further provided, which is applied to a first base station that communicates with at least one second base station, where the apparatus includes:
  • the processing module 41 is configured to receive first identifier information of the terminal device, and determine first access assistance information, where the first access assistance information corresponds to the first identifier information;
  • the sending module 42 is configured to send, to the at least one second base station, a first access request message that carries the first identifier information
  • the sending module 42 is further configured to send a second random access response message to the terminal device, where the second random access response message includes the first access assistance information, and the first access assistance information
  • the first wireless network temporary identifier C-RNTI of the first base station and the first timing advance of the first base station are included.
  • the processing module is further configured to:
  • the terminal device identifier Determining, by the first preamble identifier, the terminal device identifier, or the first preamble corresponding to the first preamble identifier, the first identifier information of the terminal device.
  • a random access control apparatus is further provided, which is applied to a terminal device that communicates with multiple base stations, where the multiple base stations include: a first base station and at least A second base station includes:
  • the sending module 51 is configured to send first identifier information to the first base station, and send second identifier information to the at least one second base station;
  • the receiving module 52 is configured to receive a second random access response message and a third random access response message, where the second random access response message is determined and sent by the first base station according to the first identifier information, where The third random access response message is determined and sent by the at least one second base station to the terminal device according to the second identifier information and the first identifier information, where the second random access response message is included
  • the first access assistance information is included, and the second access assistance information is included in the third random access response message.
  • the sending module is further configured to:
  • the first access message is sent by the first base station, and the second access message is sent by at least one of the second base station, the first access message a first preamble identifier that is allocated by the first base station to the terminal device, where the second access message includes a second preamble identifier that is allocated by the second base station to the terminal device;
  • a random access control apparatus is further provided, which is applied to a second base station that communicates with the first base station, and includes:
  • the receiving module 61 is configured to receive second identification information of the terminal device.
  • the receiving module 61 is further configured to receive a first access request message that is sent by the first base station and that carries the first identifier information.
  • the processing module 62 is configured to determine second access assistance information, where the second access assistance information is determined by the second base station, according to the second identifier information and the first identifier information, for the terminal device, where
  • the second access assistance information includes at least: a second radio network temporary identifier C-RNTI of the second base station and a second timing advance of the second base station;
  • the sending module 63 is configured to send a third random access response message to the terminal device, where the third random access response message includes second access assistance information.
  • the receiving module is further configured to:
  • the second preamble identifier Determining, by the second preamble identifier, the terminal device identifier, or the second preamble corresponding to the second preamble identifier, the second identifier information of the terminal device.
  • the terminal device 1300 includes a transmitter 1301, a receiver 1302, a processor 1303, a memory 1304, and an antenna 1305, and the transmitting module 13 in the embodiment shown in FIG. 8, and the transmitting of the terminal device in FIG. Mode Block 51, the function to be implemented may be implemented by the transmitter 1301 of the terminal device in FIG. 13, or may also be implemented by the transmitter 1301 controlled by the processor 1303, the receiving module 22 in the embodiment shown in FIG. 8, in FIG.
  • the receiving module 52 of the terminal device, the function to be implemented may be implemented by the receiver 1302 of the terminal device in FIG. 13, or may also be implemented by the receiver 1302 controlled by the processor 1303, and the memory 1304 is used to store the processor. Program instructions executed by 1303.
  • the base station 1400 includes: a transmitter 1401, a receiver 1402, a processor 1403, a memory 1404, and an antenna 1405, the transmitting module 13 in the embodiment shown in FIG. 7, and the embodiment shown in FIG.
  • the transmitting module 33, the transmitting module 42 in the embodiment shown in FIG. 10, and the transmitting module 63 in the embodiment shown in FIG. 12, may be implemented by the transmitter 1401 of the terminal device in FIG. 14, or may also be implemented.
  • the transmitter 1401 controlled by the processor 1403 is implemented, the receiving module 11 in the embodiment shown in FIG. 7, the receiving module 31 in the embodiment shown in FIG. 9, and the receiving module 61 in the embodiment shown in FIG.
  • the functions to be implemented may be implemented by the receiver 1402 of the terminal device in FIG.
  • the functions to be implemented by the processing module 32 in the example, the processing module 41 in the embodiment shown in FIG. 10, and the processing module 62 in the embodiment shown in FIG. 12 can be implemented by the processor 1403 of the terminal device in FIG.
  • the memory 1304 is configured to store the Processor 1303 executing program instructions.
  • the present invention further provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in each embodiment of the random access control method provided by the present invention.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (English: read-only memory, abbreviated as: ROM) or a random access memory (English: random access memory, abbreviation: RAM).
  • the techniques in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM. , a disk, an optical disk, etc., including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

La présente invention concerne un appareil et un procédé de commande d'accès aléatoire. Le procédé comprend les étapes suivantes : une première station de base reçoit des premières informations d'identifiant d'un dispositif terminal et détermine une première information auxiliaire d'accès, les premières informations auxiliaires d'accès correspondant aux premières informations d'identifiant ; la première station de base envoie, à au moins une seconde station de base, un premier message de demande d'accès transportant les premières informations d'identifiant ; la première station de base reçoit un message de réponse envoyé par n'importe quelle seconde station de base, le message de réponse correspondant au premier message de demande d'accès ; la première station de base détermine des secondes informations auxiliaires d'accès en fonction du message de réponse, les secondes informations auxiliaires d'accès étant déterminées par la seconde station de base pour le dispositif terminal ; et la première station de base envoie un premier message de réponse d'accès aléatoire au dispositif terminal, le premier message de réponse d'accès aléatoire comprenant les premières informations auxiliaires d'accès et les secondes informations auxiliaires d'accès. Dans la présente invention, des informations auxiliaires d'accès de multiples stations de base peuvent être obtenues d'une manière parallèle en une seule fois, le temps d'accès aléatoire peut être économisé, et l'efficacité de l'accès aléatoire peut être améliorée.
PCT/CN2017/097033 2016-08-12 2017-08-11 Procédé et appareil de commande d'accès aléatoire WO2018028662A1 (fr)

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