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WO2015018122A1 - Procédé et dispositif de transmission d'un message - Google Patents

Procédé et dispositif de transmission d'un message Download PDF

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Publication number
WO2015018122A1
WO2015018122A1 PCT/CN2013/084714 CN2013084714W WO2015018122A1 WO 2015018122 A1 WO2015018122 A1 WO 2015018122A1 CN 2013084714 W CN2013084714 W CN 2013084714W WO 2015018122 A1 WO2015018122 A1 WO 2015018122A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
rrc message
information
message
bearer channel
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/084714
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English (en)
Chinese (zh)
Inventor
时洁
李亚娟
柴丽
常俊仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN202010278477.1A priority Critical patent/CN111954314B/zh
Priority to CN201380003783.2A priority patent/CN105009663B/zh
Publication of WO2015018122A1 publication Critical patent/WO2015018122A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • a message transmission method and device The present application claims priority to a PCT patent application filed on August 9, 2013 by the Chinese Patent Office, Application No. PCT/CN2013/081243, entitled "A Message Transmission Method and Apparatus” The entire contents of which are incorporated herein by reference.
  • the present invention relates to the field of wireless communications, and in particular, to a message transmission method and device.
  • BACKGROUND The protocol layer of an LTE (Long Term Evolution) system is considered from the user's perspective, including from top to bottom.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • physical Physical, PHY
  • RRC Radio Resource Control
  • the eNB evolved NodeB, the evolved Node B, ie, the base station
  • the eNB configures multiple radio bearers to the UE by using the RRC message, and the radio bearer is different according to its function. It can be divided into DRB (Data Radio Bearer) and SRB (Signaling Radio Bearer).
  • the data of the DRB is from the CN (Core Network), and the PDCP layer is layer by layer to the physical layer.
  • the data of the SRB is from the eNB.
  • the PDCP layer is layer by layer to the physical layer.
  • the eNB finally sends the information to the UE through the signal of the physical layer.
  • the UE reversely parses the data of the eNB through its own PDCP layer, the RLC layer, the MAC layer, and the physical layer, and the PDCP layer sends the corresponding data to the RRC entity or the data receiving entity of the UE.
  • the UE may packetize its own data or RRC message from the PDCP layer to the physical layer, and send the signal to the eNB through the physical layer.
  • Figures 1 and 2 show the control plane protocol stack and the user plane protocol stack, respectively.
  • multiple bearers share a MAC layer, and the MAC entity learns from the RLC and MAC interface identifiers in the data packets acquired by the MAC layer, which RLC entity the data packet comes from, and then knows which bearer the MAC layer data packet comes from.
  • the industry has begun to consider small base stations and macro base stations to simultaneously provide services to the UE.
  • the concept of dual connectivity is introduced.
  • one of the base stations is the primary base station (MeNB) of the UE, which serves as the mobility anchor of the UE and is responsible for terminating the MME of the core network.
  • Management Entity, the mobile management entity) the remaining base station is the secondary base station (SeNB) of the UE, and provides the data packet shunting service for the UE, and the data packet received by the secondary base station may be the RRC layer, the PDCP layer of the primary base station, RLC Layer-split packets.
  • the embodiments of the present invention provide a method and a device for transmitting a message, in which a terminal sends a feedback message of an RRC message to a base station under a network architecture in which a plurality of base stations serve a terminal.
  • a message transmission method includes:
  • the terminal receives the RRC message; the terminal sends the feedback information of the RRC message to the base station that generates the RRC message, and/or sends it to other base stations than the base station that generates the RRC message.
  • the terminal receives the random access response message, and the terminal sends the feedback information of the random access response message to the base station that generates the random access response message, and/or sends the generated information to the generated The base station other than the base station of the random access response message.
  • the terminal further includes: the terminal determining a base station and/or a base station cell that generates the RRC message. Further, the determining, by the terminal, the base station and/or the base station cell that generates the RRC message, includes: the terminal, according to the base station and/or the base station cell, used in the RRC message to identify the RRC message. Determining, by the terminal, a base station and/or a base station cell that generates the RRC message; and/or, the terminal determines, according to an RRC message content, a base station and/or a base station cell that generates the RRC message, where different base stations and/or base station cells The generated RRC message has different content.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the base station and/or the base station used to identify the RRC message.
  • the information of the cell is a transmission identifier of the RRC message; where the base station or the base station cell has a mapping relationship with the transmission identifier. The mapping relationship is sent to the terminal after being negotiated between the base station and/or the base station cell.
  • the method further includes: acquiring, by the terminal, mapping relationship information between the transmission identifier sent by the base station or the locally stored base station, and/or mapping relationship between the transmission identifier and the base station cell.
  • the RRC message carries indication information, where the indication information is used to indicate that the
  • the bearer channel of the feedback information of the RRC message, or the indication information is used to indicate the base station and/or the base station cell information that receives the feedback information of the RRC message.
  • the random access response message carries indication information, where the indication information is used to indicate a bearer channel for sending feedback information of the random access response message, or the indication information is used to indicate Base station and/or base station cell information for receiving feedback information of the random access response message.
  • the indication information is used to indicate one of the following:
  • a base station and/or a base station cell that generates the RRC message is indicated.
  • a terminal comprising: a transceiver, configured to receive an RRC message; and, to send feedback information of the RRC message generated by the processor to a base station that generates the RRC message, and/or to a generation office a base station other than the base station of the RRC message; and a processor, configured to generate feedback information of the RRC message according to the RRC message received by the transceiver.
  • the transceiver is configured to receive a random access response message, and send feedback information of the random access response message generated by the processor to generate the random access response.
  • a base station of the message and/or sent to another base station other than the base station that generates the random access response message; the processor is configured to generate the random connection according to the random access response message received by the transceiver Feedback information into the response message.
  • the processor is further configured to: after the transceiver receives the RRC message, determine a base station and/or a base station cell that generates the RRC message.
  • the processor is specifically configured to determine, according to the information about the base station and/or the base station cell that is used to identify the RRC message that is carried in the RRC message, to generate the RRC message.
  • Base station and/or base station cell and/or determining a base station and/or a base station cell for generating the RRC message according to the RRC message content, wherein the RRC messages generated by different base stations and/or base station cells have different contents.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the base station and/or the base station that generates the RRC message is used to identify
  • the information of the base station cell is a transmission identifier of the RRC message, where the base station or the base station cell has a mapping relationship with the transmission identifier.
  • the RRC message carries indication information, where the indication information is used to indicate a bearer channel for sending feedback information of the RRC message, or the indication information is used to indicate that the RRC message is received.
  • the indication information is used to indicate a bearer channel for sending feedback information of the RRC message, or the indication information is used to indicate that the RRC message is received.
  • Base station and/or base station cell information for feedback information.
  • the terminal sends the feedback information of the RRC message to the base station that generates the RRC message, or sends it to other base stations, or sends the base station and other base stations that generate the RRC message, so that the terminal is used in multiple base stations.
  • the terminal sends the feedback information of the RRC message to the base station through multiple flexible manners.
  • Another embodiment of the present invention provides a message transmission method and device, which are used to implement an RRC message to a terminal in a network architecture in which a plurality of base stations serve a terminal.
  • a message transmission method includes: a first base station generates an RRC message; a first base station sends the RRC message to a terminal; and/or, the first base station passes the RRC message or the RRC message processing data packet to a second Base station sent to the end End, the number of the second base stations is one or more.
  • the first base station In a preferred mode, the first base station generates a receiving random access response message; the first base station sends the random access response message to the terminal, and/or, the random access response message or the random connection
  • the incoming response message processing data packet is sent to the terminal through the second base station, and the number of the second base station is one or more.
  • the random access response message carries the indication information, where the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the randomness is received.
  • Base station and/or base station cell information for accessing feedback information of the response message.
  • the RRC message carries information for identifying a base station and/or a base station cell that generates the RRC message.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the base station and/or the base station that generates the RRC message is used to identify
  • the information of the base station cell is a transmission identifier of the RRC message, where the base station or the base station cell has a mapping relationship with the transmission identifier.
  • An RRC message transmission method comprising: receiving, by a second base station, an RRC message or an RRC message processing data packet sent by a first base station, where the RRC message or RRC message processing data packet is generated by a first base station;
  • the base station is configured to forward the bearer channel of the RRC message generated by the first base station, and send the RRC message to the terminal.
  • the second base station receives the random access response message or the random access response message processing data packet sent by the first base station, where the random access response message or the random access response message processing data packet is the first And generating, by the second base station, the bearer channel of the random access response message generated by the first base station by using the second base station, and sending the random access response message to the terminal.
  • the random access response message carries the indication information, where the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the randomness is received.
  • Base station and/or base station cell information for accessing feedback information of the response message.
  • the RRC message carries information for identifying a base station and/or a base station cell that generates the RRC message.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the base station and/or the base station that generates the RRC message is used to identify
  • the information of the base station cell is a transmission identifier of the RRC message, where the base station or the base station cell has a mapping relationship with the transmission identifier.
  • a base station comprising: a processor, configured to generate an RRC message; a transceiver, configured to send the RRC message generated by the processor to a terminal; and/or, to process the RRC message or the RRC message
  • the data packet is sent to the terminal through the second base station, and the number of the second base station is one or more.
  • a base station comprising: a transceiver, configured to receive an RRC message or an RRC message processing data packet sent by a first base station, where the RRC message or RRC message processing data packet is generated by a first base station;
  • the bearer channel of the RRC message generated by the base station sends the RRC message to the terminal;
  • the base station that generates the RRC message sends the RRC message to the terminal, or forwards the message to the terminal through other base stations, so that in a network architecture in which multiple base stations serve the terminal, in various flexible manners, The RRC message generated by the base station is sent to the terminal.
  • Another embodiment of the present invention provides a bearer channel configuration method and device, which is used to establish a bearer channel for transmitting RRC messages under a network architecture in which multiple base stations serve terminals.
  • a radio bearer channel configuration method includes: the first base station sends an RRC message transmission configuration request message to the second base station, where the RRC message transmission configuration request message is used to request the second base station to forward the RRC message or RRC generated by the first base station
  • the message processing packet establishes a bearer channel.
  • the requesting the second base station to establish a bearer channel for forwarding the RRC message or the RRC message processing data packet generated by the first base station is specifically configured to: request the second base station to forward the first base station signaling
  • the RRC message generated by the radio bearer or the RRC message processing data packet establishes a bearer channel.
  • the RRC message transmission configuration request message carries one or a combination of the following information:
  • the first base station sends bearer channel configuration information of the RRC message generated by the first base station;
  • the first base station forwards the RRC message generated by the second base station or the bearer channel configuration information of the RRC message processing data packet; the first base station expects the second base station to establish, by the second base station, the RRC message generated by the first base station or the bearer of the RRC message processing data packet. Channel configuration information.
  • the desired base station establishes, by the second base station, the bearer channel configuration information of the RRC message generated by the first base station, including: PDCP layer configuration information of the first base station, and/or RLC layer configuration information of the second base station, and MAC Layer configuration information, physical layer configuration information.
  • a method for configuring a radio bearer channel includes: receiving, by a second base station, a configuration request message of an RRC message transmission channel sent by a first base station; and establishing, by the second base station, a second base station forwarding first according to the configuration request message of the RRC message transmission channel The RRC message generated by the base station or the bearer channel of the RRC message processing data packet.
  • the requesting the second base station to establish a bearer channel for forwarding the RRC message or the RRC message processing data packet generated by the first base station is specifically configured to: request the second base station to forward the first base station signaling
  • the RRC message generated by the radio bearer or the RRC message processing data packet establishes a bearer channel.
  • a base station comprising: a processor, configured to generate an RRC message transmission configuration request message, where the RRC message transmission configuration request message is used to request the second base station to establish a bearer for forwarding an RRC message or an RRC message processing data packet generated by the first base station
  • the first base station is a base station
  • the transceiver is configured to send the RRC message transmission configuration request message generated by the processor to the second base station.
  • a base station comprising: a transceiver, configured to receive a configuration request message of an RRC message transmission channel sent by the first base station; and a processor, configured to: according to the configuration request message of the RRC message transmission channel received by the transceiver, Establishing, by the second base station, the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station, where the second base station is the base station.
  • a base station sends a configuration request of an RRC message transmission channel to another base station, so that other base stations can establish an RRC message or an RRC message processing data packet bearer channel according to the message, to forward the initiator station.
  • the RRC message or the RRC message processing data packet between the base station and the terminal may be transmitted by forwarding between the base stations.
  • a control plane packet forwarding method includes: transmitting, by a first base station, a control plane data packet and control information to a second base station, so that the second base station sends the control plane data packet and/or the second base station according to the control information Scheduling information; wherein the indication information is sent before, after, or simultaneously with the control plane data packet.
  • a control plane packet forwarding method comprising: receiving, by a second base station, a control plane data packet and indication information sent by the first base station; wherein the indication information is before, after or after the sending the control plane data packet The surface data packet is simultaneously transmitted; the second base station transmits the control plane data packet and/or the scheduling information of the second base station according to the control information.
  • a base station comprising: a transceiver, configured to send a control plane data packet and indication information to a second base station, so that the second base station sends the control plane data packet and/or the scheduling information of the second base station according to the control information
  • the indication information is sent before, after, or simultaneously with the control plane data packet.
  • a base station comprising: a transceiver, configured to receive a control plane data packet and indication information sent by the first base station; where the indication information is before, after, or with the control plane data packet of the control plane data packet Simultaneously transmitting; the processor, configured to send, according to the control information, the control plane data packet and/or the scheduling information of the second base station.
  • Another embodiment of the present invention provides a message transmission method and device, which are used to implement forwarding of control plane data packets between base stations when a plurality of base stations serve a terminal.
  • the forwarding of the packet conforms to the specified policy.
  • FIG. 1 is a schematic diagram of a control plane protocol stack in the prior art
  • FIG. 2 is a schematic diagram of a user plane protocol stack in the prior art
  • 3 is a schematic diagram of mapping to a MAC layer in the prior art
  • FIG. 4 is a schematic structural diagram of generating and transmitting an RRC message according to an embodiment of the present invention.
  • FIG. 6, FIG. 7, FIG. 8, FIG. 9A, FIG. 9B, FIG. 9C, and FIG. 9D are respectively an RRC message transmission architecture diagram according to an embodiment of the present invention.
  • FIG. 10A and FIG. 10B are schematic diagrams showing a transmission process of an RRC message according to an embodiment of the present invention.
  • FIG. 11 is a schematic flowchart of a transmission process of feedback information of an RRC message according to an embodiment of the present disclosure
  • FIG. 12 and FIG. 16 are schematic diagrams showing a configuration process of a bearer channel according to an embodiment of the present invention
  • 13 and FIG. 17 are schematic diagrams showing a modification process of a bearer channel according to an embodiment of the present invention.
  • FIG. 14 and FIG. 18 are schematic diagrams of a release process of a bearer channel according to an embodiment of the present invention.
  • FIG. 15 is a schematic flowchart of a control plane data packet forwarding process according to an embodiment of the present disclosure
  • FIG. 19A and FIG. 19B are schematic diagrams showing the structure of a base station applied to the first solution according to an embodiment of the present invention.
  • FIG. 20 is a schematic structural diagram of a terminal applied to the second solution according to an embodiment of the present disclosure.
  • FIG. 21A and FIG. 21B are schematic diagrams showing the structure of a base station applied to the third solution according to an embodiment of the present invention.
  • FIG. 21 is a schematic structural diagram of a terminal applied to the third solution according to an embodiment of the present invention.
  • FIG. 22A and FIG. 22B are schematic diagrams showing the structure of a base station applied to the fourth solution according to an embodiment of the present invention.
  • the present invention will be further described in detail with reference to the accompanying drawings, in which FIG. An embodiment. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the embodiment of the present invention provides a RRC message sending method, a RRC message feedback information sending method, a bearer channel configuration management method, and a control plane for a network architecture in which a plurality of base stations serve a terminal. Packet forwarding method.
  • Solution 1 The method for transmitting the RRC message is described from the base station side;
  • Solution 2 A method for transmitting feedback information of an RRC message is described from a terminal side;
  • Solution 3 Describes the configuration method of the bearer channel
  • Option 4 Describes the forwarding method for control plane packets.
  • the embodiment of the present invention mainly focuses on the transmission process of the RRC message transmission process and/or the feedback information of the RRC message, and the process mainly involves processing operations of the RRC layer, the PDCP layer, the RLC layer, the MAC layer, and the PHY layer.
  • the protocol entity of the RRC layer is referred to as an RRC entity unit
  • the protocol entity of the PDCP layer is referred to as a PDCP entity unit
  • the protocol entity of the RLC layer is referred to as an RLC entity unit
  • the protocol of the MAC layer is used.
  • An entity is called a MAC entity unit
  • a protocol entity of the PHY layer is called a PHY entity unit.
  • the bearer channel for transmitting (transmitting or forwarding) the RRC message or the RRC message processing data packet in the embodiment of the present invention refers to a PDCP entity unit, an RLC entity unit, an LCID (Logic Channel ID), and possibly A logical unit combination formed by logical units such as a MAC entity unit and a PHY entity unit.
  • a complete channel from the transmitting end of the RRC message or the RRC message processing packet to the receiving end mainly including the network side RRC entity unit, PDCP entity unit, RLC entity unit, MAC entity unit and PHY entity unit, and PHY entity unit, MAC entity unit, RLC entity unit, PDCP entity unit on the terminal side.
  • the foregoing all the protocol layer entity units on the network side may be located on one eNB, or the PDCP entity unit is located on one eNB, and other protocol layer entity units are located on another eNB.
  • the lower bearing channel is formed.
  • a complete bearer channel defined above is combined in a logical unit or a logical unit on a base station, and is referred to as a bearer channel for transmitting (transmitting or forwarding) an RRC message or an RRC message processing data packet of the base station. .
  • the bearer channel that the MeNB sends the RRC message generated by the MeNB includes the PDCP entity on the MeNB.
  • the bearer channel that the SeNB forwards the RRC message or the RRC message processing data packet generated by the MeNB includes an RLC entity unit, a MAC entity unit, and a PHY entity unit on the SeNB.
  • a base station (such as an eNB) mentioned in the embodiments of the present invention refers to a base station and/or a base station cell.
  • the embodiments of the present invention are applicable to the two RRC message generation and transmission architectures shown in FIG.
  • the SeNB transmits a parameter related to the UE to generate an RRC message to the MeNB, and the MeNB generates a final RRC message, and sends the generated RRC message to the bearer channel of the MeNB and/or the SeNB.
  • the MeNB function and the architecture are the same as those in the architecture 1, but the function of the SeNB is further extended, and the SeNB can also generate an RRC message, and can select to transmit to the UE by using the carrier channel of the MeNB and/or the SeNB.
  • FIG. 4 a network architecture with one SeNB serving the UE is shown. In an actual application, there may be multiple SeNBs serving the UE, and the scenario may also adopt the foregoing four types provided by the embodiments of the present invention. Program.
  • the following is an example of the RRC message generation and transmission architecture shown in FIG. 4, which illustrates the configuration of a bearer channel for transmitting an RRC message.
  • the principle is applicable to a network architecture in which a UE has multiple SeNBs.
  • Transmission Architecture 1 RRC message transmission and forwarding, using shared bearer channels
  • the base station sends the RRC message generated by the base station, and forwards the RRC message or the RRC message processing data packet generated by other base stations, and uses the same carrier channel.
  • the PDCP entity unit and the RLC entity unit used by the MeNB to transmit the RRC message generated by the MeNB may also be used to forward the RRC message or the RRC message processing data packet generated by the SeNB.
  • the PDCP entity unit and the RLC entity unit used by the SeNB to transmit the RRC message generated by the SeNB may also be used to forward the RRC message or RRC message generated by the MeNB or other SeNBs (in the scenario of multiple SeNBs). data pack.
  • the MeNB sends the RRC message generated by the MeNB and forwards the bearer channel of the RRC message or the RRC message processing data packet generated by the SeNB, and may include a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit on the MeNB. Or include: RLC entity unit, MAC entity unit, and PHY entity unit.
  • the SeNB sends the RRC message generated by the SeNB and the bearer channel of the RRC message or the RRC message processing data packet generated by the MeNB or other SeNB (in the scenario of multiple SeNBs), and may also include the PDCP entity unit and the RLC on the SeNB.
  • the physical unit, the MAC entity unit, and the PHY entity unit or include: an RLC entity unit, a MAC entity unit, and a PHY entity unit.
  • the UE configures a bearer channel for receiving the RRC message for the MeNB and each SeNB.
  • the channel of the RRC message may include a logical unit such as a PHY entity unit, a MAC entity unit, an RLC entity entity unit, and a PDCP entity unit of the UE.
  • the RLC physical unit in the channel transmitting the RRC message may correspond to an independent MAC entity unit, whether on the base station side or the UE side.
  • a typical structure of the above transmission architecture 1 can be as shown in FIG.
  • the bearer channel 1 is generated by the transmitting MeNB.
  • the bearer channel of the RRC message; the bearer channel 2 is a bearer channel that the RRC message generated by the MeNB is forwarded by the SeNB;
  • the bearer channel 3 is a bearer channel that sends the RRC message generated by the SeNB;
  • the bearer channel 4 is the bearer that the RRC message generated by the SeNB is forwarded by the MeNB. aisle.
  • the UE may receive the RRC message generated by the MeNB through the bearer channel 1 and/or the bearer channel 2, and may receive the RRC message generated by the SeNB through the bearer channel 3 and/or the bearer channel 4.
  • the above bearer channels are all SRB-level channels.
  • Transmission Architecture 2 RRC message transmission and forwarding, using independent bearer channels, and RRC message shunting by PDCP entity unit
  • the base station sends an RRC message generated by the base station, and forwards an RRC message or an RRC message processing data packet generated by another base station, and uses different bearer channels.
  • the PDCP entity unit and the RLC entity unit used by the MeNB to transmit the RRC message generated by the MeNB itself, and the PDCP entity unit and the RLC entity unit of the RRC message or the RRC message processing data packet generated by the SeNB are two independent groups.
  • Logic unit Similarly, the PDeNB entity unit and the RLC entity unit used by the SeNB to transmit the RRC message generated by the SeNB, and the RRC message or RRC message processing data packet generated by the MeNB or other SeNB (in the scenario of multiple SeNBs) are forwarded.
  • the PDCP entity unit and the RLC entity unit are two independent logical units.
  • the MeNB sends the bearer channel of the RRC message generated by the MeNB, and may include a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit on the MeNB; the MeNB forwards the RRC message or the RRC message processing data packet generated by the SeNB.
  • the bearer channel may include a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit, where the MeNB forwards the RRC message generated by the SeNB or the RLC entity unit, the MAC entity unit in the bearer channel of the RRC message processing data packet, a PHY entity unit, and a bearer channel formed by a PDCP entity unit in the SeNB (which may be a PDCP entity unit in the bearer channel in which the SeNB sends the RRC message generated by the SeNB, or an independent PDCP entity unit) is used as the UE.
  • a PDCP entity unit in the SeNB which may be a PDCP entity unit in the bearer channel in which the SeNB sends the RRC message generated by the SeNB, or an independent PDCP entity unit
  • the SeNB sends a bearer channel of the RRC message generated by the SeNB, which may include a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit on the SeNB; the SeNB forwards the MeNB or other SeNBs (in the case of multiple SeNBs) Instance generated) RRC
  • the bearer channel of the message or RRC message processing data packet may include a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit, where the RLC entity unit, the MAC entity unit, the PHY entity unit, and the RRC message or the RRC are generated.
  • a PDCP entity unit in a base station (MeNB or other SeNB) of the message processing data packet (which may be a PDCP entity unit in a bearer channel that generates a RRC message generated by the base station by the base station that generates the RRC message or the RRC message data processing packet, or may A bearer channel formed by a separate PDCP entity unit is used to provide services for the UE.
  • the UE On the UE side, the UE respectively sends a bearer channel for transmitting the RRC message generated by the base station and a bearer channel for forwarding the RRC message generated by the other base station to the MeNB and each SeNB, and respectively configured to receive the bearer channel of the RRC message.
  • the channel used by the UE to receive the RRC message may include a logical unit such as a PHY entity unit, a MAC entity unit, an RLC entity entity unit, and a PDCP entity unit of the UE.
  • a typical structure of the above transmission architecture 2 can be as shown in FIG. 6.
  • FIG. 6 In order to facilitate the description of the data transmission process,
  • the bearer channels on the MeNB are presented separately.
  • the bearer channel 1 is a bearer channel for transmitting an RRC message generated by the MeNB;
  • the bearer channel 2 is a bearer channel that the RRC message generated by the MeNB is forwarded by the SeNB;
  • the bearer channel 3 is a bearer channel for transmitting an RRC message generated by the SeNB;
  • the RRC message generated by the SeNB passes through the bearer channel forwarded by the MeNB.
  • the UE may receive the RRC message generated by the MeNB through the channel 1 and/or the channel 2, and may receive the RRC message generated by the SeNB through the channel 3 and/or the carrier channel 4.
  • the above bearer channels are all SRB level channels.
  • Transmission architecture 3 RRC message transmission and forwarding, using independent bearer channels, and RRC message offloading by RLC entity unit
  • the transmission architecture is basically similar to the foregoing transmission architecture 2.
  • the base station sends an RRC message generated by the base station, and forwards an RRC message or an RRC message processing data packet generated by another base station, and uses different bearer channels.
  • the bearer channel of the processing data packet in which the base station forwards the RRC message or the RRC message generated by the other base station may include: an RLC entity unit, a MAC entity unit, and a PHY entity unit.
  • the bearer channel 1 is a bearer channel for transmitting an RRC message generated by the MeNB
  • the bearer channel 2 is a bearer channel that the RRC message generated by the MeNB is forwarded by the SeNB
  • the bearer channel 3 is a bearer channel for transmitting an RRC message generated by the SeNB
  • the RRC message generated by the SeNB passes through the bearer channel forwarded by the MeNB.
  • the UE may receive the RRC message generated by the MeNB through the channel 1 and/or the channel 2, and may receive the RRC message generated by the SeNB through the channel 3 and/or the carrier channel 4.
  • the above bearer channels are all SRB level channels.
  • Transport Architecture 4 RLC Message Diversion by RLC Entity Unit
  • the RRC message can only be generated by the MeNB. Therefore, the bearer channel that forwards the RRC message can include a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit on the MeNB, and the bearer channel can include: RLC entity unit, MAC entity unit, PHY entity unit.
  • the UE separately allocates a logical unit combination for the bearer channel of the RRC message sent by the MeNB and each SeNB.
  • the logical unit combination corresponding to the MeNB may include: a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a PHY entity unit
  • the logical unit combination corresponding to the SeNB may include: an RLC entity unit, a MAC entity unit, and a PHY entity unit.
  • the bearer channel 1 is a bearer channel for the MeNB to send an RRC message
  • the bearer channel 2 is a bearer channel for the MeNB to forward the RRC message through the SeNB.
  • the UE may receive an RRC message through bearer channel 1 and/or bearer channel 2.
  • the above bearer channels are all SRB level channels.
  • Transport Architecture 5 RLC message shunting by PDCP entity unit
  • the transmission architecture differs from the transmission architecture 5 in that: the bearer channel for forwarding the RRC message includes: The PDCP entity further includes a PDCP entity unit; the bearer channel further includes a PDCP entity unit on the UE side.
  • the bearer channel 1 is a bearer channel for the MeNB to send the RRC message; the bearer channel 2 is a bearer channel for the MeNB to forward the RRC message through the SeNB.
  • the UE may receive an RRC message through bearer channel 1 and/or bearer channel 2.
  • the above bearer channels are all SRB level channels.
  • Transmission architecture 6 Both the first base station and the second base station can generate an RRC message, and the generated RRC message needs to be forwarded by other base stations.
  • the bearer channel 1 is a bearer channel for transmitting an RRC message generated by the MeNB, where the bearer channel is on the network side, and includes a PDCP entity unit on the first base station and an RLC entity unit, a MAC entity unit, and a PYH entity unit on the second base station;
  • the bearer channel 2 is a bearer channel for transmitting an RRC message generated by the SeNB.
  • the bearer channel is on the network side, and includes a PDCP entity unit on the second base station and an RLC entity unit, a MAC entity unit, and a PYH entity unit on the first base station.
  • the above bearer channels are all SRB level channels.
  • a typical structure of the above transmission architecture 7 can be as shown in Fig. 9C. It can be seen that a group of logical units (PDCP entity unit, RLC entity unit, MAC entity unit, PHY entity unit) of the bearer channel 3 on the first base station is used for transmitting the RRC message generated by the first base station, carrying the channel 2 and the bearer.
  • the channel 6 shares another group of logical units (the RLC entity unit, the MAC entity unit, and the PHY entity unit) on the first base station, where the bearer channel 2 is a bearer channel forwarded by the first base station by the RRC message generated by the second base station, and the bearer channel is carried. 6 is a bearer channel directly sent by the RRC message generated by the first base station to the terminal.
  • the second base station also has a similar RRC message transmission structure.
  • FIG. 9D A typical structure of the above transmission architecture 7 can be as shown in FIG. 9D.
  • the transmission structure of FIG. 9D is similar to that of FIG. 6.
  • the carrier channel 5 and the carrier channel 6 are added on the basis of FIG. 6.
  • FIG. 9D The newly added carrying channel 5 and the carrying channel 6 are shown, and the carrying channels 1 ⁇ 4 can be referred to FIG. 6.
  • the bearer channel for transmitting an RRC message between the RRC entity units between the first base station and the second base station.
  • the bearer channel used for transmitting the RRC message generated by the base station in a base station is referred to as the first bearer channel of the base station, and the base station is used to forward the RRC message or RRC message processing data generated by other base stations.
  • the bearer channel of the packet is called the second bearer channel of the base station.
  • logical units such as a PDCP physical unit, an RLC physical unit, a MAC physical unit, and a PHY physical unit in the MeNB constitute a first bearer channel of the MeNB
  • the second bearer channel of the MeNB is also composed of the logical units, that is, The first bearer channel and the second bearer channel of the MeNB can be regarded as the same bearer channel.
  • the logical unit such as the PDCP entity unit, the RLC entity unit, the MAC entity unit, and the PHY entity unit in the MeNB constitutes the first of the MeNB.
  • the bearer channel, the second bearer channel of the MeNB is composed of logical units such as another group of PDCP entity units, RLC entity units, MAC entity units, and PHY entity units, that is, the first bearer channel and the second bearer channel of the MeNB may be considered to be different. Carrying a channel.
  • the first bearer channel in the base station includes a downlink channel and/or an uplink channel.
  • the second bearer channel in the base station may also include an uplink channel and/or a downlink channel.
  • the RRC message mentioned in each solution of the embodiment of the present invention may include one or a combination of the following messages: a connection setup message, an RRC reconfiguration message, and an RRC connection re-establishment message.
  • the RRC message processing data packet mentioned in each scheme of the embodiment of the present invention may be one of the following data packets of the RRC message: an SDU data packet at the PDCP layer, an SDU data packet at the PDCP layer, and an SDU data packet at the RLC layer. , PDU packets at the RLC layer, packets at the MAC layer, and packets at the physical layer.
  • the RRC message corresponding to the feedback information of the RRC message mentioned in the solutions of the embodiments of the present invention includes one of the following: an RRC connection setup complete message, an RRC connection setup failure message, an RRC reconfiguration complete message, an RRC reconfiguration failure message, and an RRC connection.
  • the re-establishment completion message, the RRC connection re-establishment failure message includes one of the following: an RRC connection setup complete message, an RRC connection setup failure message, an RRC reconfiguration complete message, an RRC reconfiguration failure message, and an RRC connection.
  • the feedback information of the RRC message mentioned in each solution of the embodiment of the present invention may be an RRC message of the RRC layer; or may be one of the following processing data packets of the RRC message: an SDU data packet at the PDCP layer, and an SDU at the PDCP layer.
  • the feedback information of the RRC message may also include a message that the terminal actively reports.
  • the measurement report message of the terminal After the terminal obtains the RRC message related to the measurement configuration sent by the base station, the terminal returns an RRC feedback message to the base station to indicate that the measurement configuration is completed, and the measurement report message may be further fed back.
  • the measurement report message is also a type of feedback information of the RRC message. Therefore, after receiving the RRC message, the terminal may report the feedback information of the RRC message one or more times, and the feedback information of the RRC message reported each time may be different. The specific content of the feedback information of the RRC message needs to be determined according to the actual scenario.
  • the first base and the second base station are ordinary base stations.
  • the first base station is a primary base station
  • the second base station is a secondary base station.
  • the first base station is the primary base station
  • the second base station is the primary base station
  • the first base station is the secondary base station
  • the second base station is the secondary base station.
  • the primary base station may also be referred to as an anchor base station or a virtual base station.
  • the primary base station can be responsible for terminating the S1-MME.
  • the base station can be used as a mobility anchor for the core network or a macro base station.
  • the secondary base station (SeNB) is a base station that is not the first base station, and is also a small base station (such as the aforementioned Pico, Femto, LoMo, AP, LPN, RRH), and may also be referred to as a small cell base station, and may provide a data offload service for the UE.
  • the second base station may also be the first network node, and the base station to which the first network node belongs may be the first base station, which is not limited by the present invention.
  • the second base station of the present invention can be understood as a general term for a base station that is not a first type of base station, and is referred to as a second type of base station, and not only refers to a second base station.
  • the first base station and the second base station may provide a separate bearer service for the UE.
  • the first base station can also be understood as a first type of base station.
  • the primary base station and the secondary base station may provide dual connectivity services for the UE and or provide separate bearer services.
  • FIG. 10A is a flowchart of an RRC message transmission according to an embodiment of the present invention. As shown in the figure, the process may include: Step 101: A first base station generates an RRC message;
  • Step 102 The first base station sends the RRC message to the terminal; and/or, the first base station sends the RRC message or the processing data packet of the RRC message to the terminal by using the second base station, where the number of the second base station is one. Or multiple.
  • the "first base station” may represent the MeNB or the SeNB, and if the “first base station” represents the MeNB, the “second base station” represents the SeNB; if the “first base station” represents the SeNB, the “second base station” may represent the MeNB and / or other SeNB.
  • the first base station in order for the UE to identify the base station and/or the base station cell that generates the RRC message, the first base station carries information for identifying the base station and/or the base station cell that generated the RRC message in the RRC message generated by the first base station.
  • the information for identifying the base station and/or the base station cell that generates the RRC message may be: an identifier of the base station and/or the base station message that generates the RRC message.
  • the UE may identify the base station and/or the base station cell that generated the RRC message according to the identifier of the base station and/or the base station message that is generated in the RRC message and that generates the RRC message.
  • the information used to identify the base station and/or the base station cell that generates the RRC message may also be a transmission identifier of the RRC message.
  • the base station and the transmission identifier have a mapping relationship, and/or the base station cell and the transmission identifier have a mapping relationship, and different base stations or base station cells can use different transmission identifiers.
  • the transmission identifier of the RRC message may be the Transaction ID of the RRC message.
  • the mapping relationship may be pre-configured on the UE, or may be negotiated between the first base station and the second base station. Further, the first base station and/or the second base station sends the negotiated mapping relationship information to the UE.
  • the UE may determine the base station and/or the base station cell that generates the RRC message according to the transmission identifier of the RRC message carried in the RRC message and the mapping relationship between the transmission identifier and the base station and/or the base station cell.
  • the mapping relationship between the transmission identifier and the base station can take multiple representations.
  • a preferred representation is xx-yy, where XX represents the transmission identifier and yy represents the corresponding base station.
  • XX and yy can be interchanged.
  • the first base station may also distinguish the content of the RRC message generated by itself from the content of the RRC message generated by the other base station according to the protocol.
  • the RRC message content here may be an IE (Information Element) of the RRC message.
  • the protocol may specify that the RRC message IE generated by the MeNB and the SeNB is completely distinguishable.
  • the RRC message generated by the SeNB is completely related to the scheduling of the SeNB, and the MeNB does not generate such a message.
  • the RRC message generated by the MeNB is also not generated by the SeNB. In this way, the UE can identify the base station that generated the RRC message according to the specific content of the RRC message.
  • step 101 in order to enable the UE to identify the base station and/or the base station cell that generated the RRC message, or
  • the UE can send or send the feedback information of the RRC message to the designated base station through the specified bearer channel.
  • the first base station can also carry the following indication information in the generated RRC message: a bearer channel for indicating the feedback information of the RRC message.
  • the bearer channel indicated by the former may be a bearer channel of the RRC message generated by the first base station from the first base station to the UE (such as DL-1 in FIG. 5, DL-1 in FIG. 6, or DL in FIG. 7). -1), and/or a bearer channel forwarded by the RRC message generated by the first base station through the second base station (such as DL-2 in FIG.
  • the base station and/or base station cell information indicated by the eNB may be an identifier of a base station and/or a base station cell that generates the RRC message, and/or an identifier of another base station and/or a base station cell, although the other base station is not the RRC message.
  • the identifier of the base station and/or the base station cell is further an ECGI (Evolved Cell Global Identifier) evolved cell global identifier, and or a PCI (Physical Layer Cell Identity) physical layer cell identifier.
  • the first base station may send, by using the first base station, a downlink channel of the first bearer channel of the RRC message generated by the first base station, and send the RRC message to the terminal; and/or, the first base station generates the first base station.
  • the RRC message or the RRC message processing data packet is sent to the second base station, and the second base station forwards the RRC message generated by the first base station or the second bearer channel of the RRC message processing data packet by the second base station, and receives the received RRC message or The RRC message processing data packet is forwarded to the terminal.
  • process shown in FIG. 10 may further include the following steps:
  • Step 103 The first base station receives the feedback information of the RRC message sent by the UE, where the feedback information of the RRC message carries the indication information and/or the transmission identifier.
  • FIG. 10B is a flowchart of an RRC message transmission according to an embodiment of the present invention.
  • the process may include: Step 104: The first base station receives an RRC message or an RRC message processing data packet generated by a second base station, where The base station forwards the RRC message or the RRC message processing data packet generated by the second base station. Specifically, the first base station may forward the received RRC message or the RRC message processing data packet by using the first base station to forward the RRC message generated by the second base station or the downlink channel of the second bearer channel of the RRC message processing data packet.
  • the method further includes the following steps:
  • Step 105 The first base station forwards, by using the first base station, the uplink of the bearer channel of the RRC message generated by the second base station.
  • the channel sends feedback information of the received RRC message.
  • the "second base station" here needs to be determined according to the indication information and/or the transmission identifier carried in the feedback information of the RRC message. Specifically, after the PDCP entity unit of the first base station parses the indication information in the PDCP SDU or the PDCP PDU corresponding to the feedback information of the received RRC message, the PDCP SDU or the PDCP PDU is forwarded to the first according to the indication information.
  • the PDCP entity unit of the second base station is forwarded to the first according to the indication information.
  • the first method includes: sending, by the base station, the configuration information of the bearer channel for transmitting the RRC message to the UE, where the process includes: sending, by the first base station, the RRC message and/or the RRC message processing data packet to the UE
  • the configuration information of the bearer channel may represent the MeNB or the SeNB.
  • the configuration information of the bearer channel sent by the base station to the UE is basically the same as the configuration information of the bearer channel transmitted during the bearer channel configuration process between the base stations. For reference, refer to the description of the subsequent scheme 3.
  • FIG. 10B is a flowchart of an RRC message transmission according to an embodiment of the present invention.
  • the process may include: Step 104: The first base station receives an RRC message or an RRC message processing data packet generated by a second base station, where The base station forwards the RRC message or the RRC message processing data packet generated by the second base station. Specifically, the first base station may forward the received RRC message or the RRC message processing data packet by using the first base station to forward the RRC message generated by the second base station or the downlink channel of the second bearer channel of the RRC message processing data packet.
  • the method further includes the following steps:
  • Step 105 The first base station forwards the uplink channel of the bearer channel of the RRC message generated by the second base station by using the first base station, and sends the feedback information of the received RRC message.
  • the "second base station" here needs to be determined according to the indication information and/or the transmission identifier carried in the feedback information of the RRC message. Specifically, after the PDCP entity unit of the first base station parses the indication information in the PDCP SDU or the PDCP PDU corresponding to the feedback information of the received RRC message, the PDCP SDU or the PDCP PDU is forwarded to the first according to the indication information.
  • the PDCP entity unit of the second base station is forwarded to the first according to the indication information.
  • the first method includes: sending, by the base station, the configuration information of the bearer channel for transmitting the RRC message to the UE, where the process includes: sending, by the first base station, the RRC message and/or the RRC message processing data packet to the UE
  • the configuration information of the bearer channel may represent the MeNB or the SeNB.
  • the configuration information of the bearer channel sent by the base station to the UE is basically the same as the configuration information of the bearer channel transmitted during the bearer channel configuration process between the base stations. For reference, refer to the description of the subsequent scheme 3.
  • the embodiment of the present invention provides a method for sending an RRC message to a scenario in which a plurality of base stations serve a terminal, and the RRC message can be directly sent to the terminal by the generating base station according to actual needs. It can also be forwarded to the terminal via other base stations. Further, in order to enable the terminal to send the feedback information of the RRC message to the base station that generates the RRC message, or to the designated base station, the embodiment of the present invention improves the method for the eNB to send the RRC message by carrying the indication information. And enabling the terminal to identify the source of the RRC message, thereby determining a bearer channel for transmitting the feedback information of the RRC message.
  • the above scheme is applicable to multiple RRC message transmission architectures.
  • Step 1 The first base station generates a receive random access response message.
  • Step 2 The first base station sends the random access response message to the terminal, and/or, the first base station sends the random access response message or the processing data packet of the random access response message to the terminal by using the second base station,
  • the number of the second base stations is one or more.
  • the "first base station” may represent the MeNB or the SeNB, and if the “first base station” represents the MeNB, the “second base station” represents the SeNB; if the “first base station” represents the SeNB, the “second base station” may represent the MeNB and / or other SeNB.
  • the first base station in order to enable the UE to identify the base station and/or the base station cell that generates the random access response message, the first base station carries a random access response message generated by the first base station to identify the random access response message. Information about the base station and/or base station cell.
  • the information for identifying the base station and/or the base station cell that generates the random access response message may be: an identifier of the base station and/or the base station message that generates the random access response message.
  • the UE may identify the base station and/or the base station cell that generates the random access response message according to the identifier of the base station and/or the base station message that is generated in the random access response message and that generates the random access response message.
  • the information for identifying the base station and/or the base station cell that generates the random access response message may also be a transmission identifier of the random access response message.
  • the base station and the transmission identifier have a mapping relationship, and/or the base station cell and the transmission identifier have a mapping relationship, and different base stations or base station cells can use different transmission identifiers.
  • the transmission identifier of the random access response message may be the Transaction ID of the random access response message.
  • the mapping relationship may be pre-configured on the UE, or may be negotiated between the first base station and the second base station. Further, the first base station and/or the second base station sends the negotiated mapping relationship information to the UE.
  • the UE may determine the base station and/or the base station generating the random access response message according to the transmission identifier of the random access response message carried in the random access response message and the mapping relationship between the transmission identifier and the base station and/or the base station cell.
  • Base station cell The mapping relationship between the transmission identifier and the base station can be in multiple representations. A preferred representation is xx-yy, XX represents the transmission identifier, and yy represents the corresponding base station.
  • the first base station may also separately generate the content of the random access response message generated by itself from other base stations according to the protocol.
  • the content of the random access response message herein may be an IE (Information Element) of the random access response message.
  • the protocol may specify that: the random access response message IE generated by the MeNB and the SeNB is completely distinguishable, and vice versa, and the random access response message generated by the MeNB is not generated by the SeNB. In this way, the UE may identify the base station that generates the random access response message according to the specific content of the random access response message.
  • step 1 in order to enable the UE to identify the base station and/or the base station cell that generated the random access response message, or to enable the UE to send or send the feedback information of the random access response message to the designated bearer through the designated bearer channel.
  • the base station may also carry the following indication information in the generated random access response message: indication information indicating a bearer channel for transmitting feedback information of the random access response message, or indicating to receive the random connection Enter The indication information of the base station and/or the base station cell information of the feedback information of the response message.
  • Step 3 The first base station receives the feedback information of the random access response message sent by the UE, where the feedback information of the random access response message carries the indication information and/or the transmission identifier.
  • the method may include:
  • Step 4 The first base station receives the random access response message or the random access response message processing data packet generated by the second base station, and the first base station forwards the random access response message or the random access response message generated by the second base station to process the data packet. .
  • step 4 If the first base station determines that the feedback information of the random access response message needs to be forwarded according to the indication information and/or the transmission identifier carried in the feedback information of the received random access response message, after step 4, The following steps:
  • Step 5 The first base station forwards the feedback information of the received random access response message.
  • the "second base station” here needs to be determined according to the indication information and/or the transmission identifier carried in the feedback information of the RRC message.
  • Solution 2 Method for transmitting feedback information of RRC message
  • FIG. 11 is a flowchart of a method for transmitting feedback information of an RRC message according to an embodiment of the present invention.
  • the process is described by using a generating base station of an RRC message as a first base station, where the “first base station” may represent an MeNB or a SeNB. If “first base station” represents MeNB, then “second base station” represents SeNB; if “first base station” represents SeNB, then “second base station” may represent MeNB and/or other SeNB.
  • the process can include:
  • Step 111 The UE receives an RRC message.
  • Step 113 The UE sends the feedback information of the RRC message to the first base station that generates the RRC message, and/or sends the information to the second base station.
  • step 112 may be further included: the UE determines a base station and/or a base station cell that generates the RRC message.
  • step 111 the process of the base station transmitting the RRC message can be referred to the description of the first solution.
  • the UE may determine a base station and/or a base station cell that generates the RRC message according to information used by the RRC message to identify a base station and/or a base station cell that generates the RRC message; and/or The base station and/or the base station cell that generates the RRC message may be determined according to the RRC message content.
  • the base station may distinguish the content of the RRC message generated by the base station from the content of the RRC message generated by the other base station, and the UE may determine the base station or the base station cell that generates the RRC message according to the content of the RRC message, and further determine the sending.
  • the upstream channel of the feedback information of the RRC message may be used to distinguish the content of the RRC message generated by the base station from the content of the RRC message generated by the other base station.
  • the information about the base station and/or the base station cell that is used to generate the RRC message, which is carried in the RRC message, may be the identifier of the base station and/or the base station cell, or may be the transmission identifier of the RRC message.
  • the base station or The base station cell has a mapping relationship with the transmission identifier. Therefore, the UE can determine the base station or the base station cell that generates the RRC message according to the indication information page.
  • the indication information and the carrying manner refer to the related description in the first scheme, and details are not described herein.
  • the mapping relationship between the base station or the base station cell and the transmission identifier is sent to the UE after being negotiated between the base station or the base station cell. Therefore, correspondingly, the UE side further includes the step of receiving the mapping relationship information sent by the base station.
  • the mapping relationship information may be pre-configured on the UE, and the UE may determine the base station that generates the RRC message according to the mapping relationship information that is pre-configured on the UE and the transmission identifier carried in the received RRC message. Base station cell.
  • the RRC message may further carry indication information, where the indication information is used to indicate a bearer channel that sends feedback information of the RRC message, or a base station that is used to indicate feedback information of the RRC message and/or Or base station cell information.
  • the UE may determine, according to the bearer channel indicated by the indication information, an uplink channel that sends the feedback information of the RRC message, or determine, according to the base station or the base station cell that generates the RRC message indicated by the indication information, to send the RRC message.
  • the uplink channel of the feedback information, or the base station or the base station cell that forwards the feedback information of the RRC message according to the indication information determines an uplink channel that sends the feedback information of the RRC message.
  • the UE may carry the indication information and/or the transmission identifier in the feedback information of the RRC message.
  • the transmission identifier carried in the feedback information of the RRC message is the same as the transmission identifier carried in the RRC message.
  • the UE may carry the indication information in the SDU or PDU of the PDCP layer corresponding to the feedback information of the RRC message, or in the SLC or PDU of the RLC layer.
  • the indication information may also be carried in an RRC message for transmitting feedback information of the RRC message.
  • the indication information carried in the feedback information of the RRC message may indicate whether the receiving base station of the feedback information forwards the feedback information or parses the feedback information. If the receiving base station needs to forward the feedback information, the base station may be further indicated to be forwarded. And the base station cell, the indication information may further indicate the base station and/or the base station cell that generates the RRC message, and the indication information is used to enable the receiving base station of the feedback information to determine the subsequent processing after receiving the feedback information. operating. Specifically, the indication information can be used to indicate one of the following:
  • the receiving base station and/or the base station cell indicating the feedback information of the RRC message needs to forward the feedback information of the RRC message;
  • the receiving base station and/or the base station cell indicating the feedback information of the RRC message need to parse the feedback information of the RRC message to the RRC layer;
  • the indication information may be carried in an SDU (Service Data Unit) or a PDU (Protocol Data Unit) of the PDCP layer corresponding to the feedback information of the RRC message, or in the RLC. Layer SDU or PDU.
  • the indication information page may be carried in an RRC message for transmitting feedback information of the RRC message.
  • the UE may send the uplink channel of the bearer channel of the RRC message generated by the first base station, send the feedback information of the RRC message to the first base station, and/or forward the first base station by using the second base station.
  • the generated RRC message or the uplink channel of the bearer channel of the RRC message processing data packet transmits the feedback information of the RRC message to the second base station.
  • the SRB identifier of the first bearer channel of the first base station is the same as or different from the SRB identifier of the second bearer channel of the RRC message or the RRC message processing data packet of the second base station.
  • the SRB identifier may be an existing SRB identifier (such as SRB0, SRB SRB2) or an extended SRB identifier (such as SRB3).
  • the UE sends an RRC reconfiguration complete message to the first base station and the second base station.
  • the process may occur in the process of establishing an SRB bearer by the second base station, or establishing a DRB bearer, or establishing a tunnel bearer, or establishing a data offload bearer.
  • the UE may send the feedback information of the RRC message to the first base station that generates the RRC message, and/or to other base stations other than the base station that generates the RRC message.
  • the second base station the UE sends the feedback message of the RRC message to the dedicated bearer channel used by the first base station to send the feedback information of the RRC message, where the dedicated bearer channel belongs to the base station that generates the RRC message, or does not belong to the RRC.
  • the base station corresponding to the process of transmitting the configuration information of the bearer channel for transmitting the RRC message to the UE, and the method for receiving the configuration information of the bearer channel for transmitting the RRC message sent by the base station in the second scheme may be further included in the second scheme.
  • the process may include: receiving, by the UE, configuration information of a bearer channel sent by the first base station for transmitting an RRC message and/or an RRC message processing data packet.
  • the "first base station" therein may represent the MeNB or the SeNB.
  • the content of the configuration information of the bearer channel sent by the base station to the UE is basically the same as the configuration information of the bearer channel transmitted during the bearer channel configuration process between the base stations. For reference, refer to the description of the subsequent scheme 3.
  • the foregoing solution 2 is applicable to all the foregoing RRC message transmission structures.
  • the embodiment of the present invention provides a method for sending feedback information of an RRC message to a scenario in which a plurality of base stations serve a terminal, and may send the feedback information of the RRC message to the actual needs.
  • the base station that generates the RRC message may also be sent to other base stations or forwarded by other base stations to the base station that generates the RRC message.
  • the embodiment of the present invention improves the method for the eNB to send the RRC message by carrying the indication information.
  • the embodiment of the present invention performs the feedback information of the RRC message. Expanding, carrying indication information therein, so that the receiving base station can determine whether to turn The target base station that sends and forwards.
  • the above scheme is applicable to multiple RRC message transmission architectures.
  • Another message transmission process of Option 2 may include:
  • Step 1 The UE receives a random access response message.
  • Step 3 The UE sends the feedback information of the random access response message to the first base station that generates the random access response message, and/or sends the information to the second base station.
  • step 2 may be further included: the UE determines a base station and/or a base station cell that generates the random access response message.
  • step 1 the process of the base station transmitting the random access response message can be referred to the description of the first solution.
  • the UE may determine, according to information about the base station and/or the base station cell that is used to identify the random access response message that is carried in the random access response message, the base station that generates the random access response message. And/or a base station cell; and/or, the base station and/or the base station cell that generates the random access response message may be determined according to the content of the random access response message.
  • the base station may distinguish the content of the random access response message generated by the base station from the content of the random access response message generated by the other base station, and the UE may determine to generate the random access according to the content of the random access response message. And responding to the base station or the base station cell of the message, and further determining an uplink channel for transmitting the feedback information of the random access response message.
  • the information about the base station and/or the base station cell that is used to identify the random access response message, which is carried in the random access response message may be the identifier of the base station and/or the base station cell, or may be The transmission identifier of the random access response message, where the base station or the base station cell has a mapping relationship with the transmission identifier, so the UE can determine the base station or the base station cell that generates the random access response message according to the indication information page.
  • the indication information and the carrying manner refer to the related description in the first scheme, and details are not described herein.
  • the mapping relationship between the base station or the base station cell and the transmission identifier is negotiated between the station and the base station cell and sent to the UE. Therefore, correspondingly, the UE side further includes the step of receiving the mapping relationship information sent by the base station.
  • the mapping relationship information may also be pre-configured on the UE, and the UE may determine to generate the random connection according to the mapping relationship information pre-configured on the UE and the transmission identifier carried in the received random access response message. The base station or base station cell into the response message.
  • the random access response message may further include indication information, where the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or is used to indicate that the random access is received.
  • indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or is used to indicate that the random access is received.
  • Base station and/or base station cell information in response to feedback information of the message.
  • the UE may determine, according to the bearer channel indicated by the indication information, an uplink channel that sends feedback information of the random access response message, or a base station or a base station cell that generates the random access response message according to the indication information, Determining an uplink channel that sends the feedback information of the random access response message, or determining, according to the base station or the base station cell that forwards the feedback information of the random access response message indicated by the indication information, to send the random access response message The upstream channel of the feedback information.
  • the UE may carry the indication information and/or the transmission identifier in the feedback information of the random access response message.
  • the transmission identifier carried in the feedback information of the random access response message is the same as the transmission identifier carried in the random access response message.
  • the UE may carry the indication information in the SDU or PDU of the PDCP layer corresponding to the feedback information of the random access response message, or in the RLC layer SDU or PDU.
  • the indication information may also be carried in a random access response message for transmitting feedback information of the random access response message.
  • the indication information carried in the feedback information of the random access response message may be used to indicate whether the receiving base station of the feedback information forwards the feedback information or parses the feedback information. If the receiving base station needs to forward the feedback information, the destination information may be further forwarded to The target base station and/or the base station cell, the indication information may also indicate the base station and/or the base station cell that generates the random access response message, and the indication information is used to enable the receiving base station of the feedback information to receive the feedback information.
  • the subsequent processing operations can be determined.
  • the indication information can be used to indicate one of the following:
  • the receiving base station and/or the base station cell indicating the feedback information of the random access response message needs to forward the feedback information of the random access response message;
  • the indication information may be carried in an SDU (Service Data Unit) or a PDU (Protocol Data Unit) of the PDCP layer corresponding to the feedback information of the random access response message, or in the RLC layer. SDU or PDU.
  • the indication information page may be carried in a random access response message for transmitting feedback information of the random access response message.
  • a cell that provides a bearer service for a UE is subordinate to a base station, and is connected by a fiber with almost no delay.
  • the cell does not need to negotiate the establishment, modification, and release of the bearer channel.
  • the UE has access to another cell in the case of at least one serving cell, the cell is first accessed to the cell.
  • the cell establishes a bearer.
  • the cells may be time-delayed backhaul networks, and one base station or one centralized control network element cannot be used to effectively control multiple cells in real time. In this case, a relatively balanced distributed method may be adopted. Effectively maintain the performance of the entire network.
  • the establishment, modification, and release process of the bearer channel or the channel for transmitting information needs to be negotiated between the cells, or the base station to which the cell belongs.
  • the UE may acquire the configuration information of the bearer channel and then establish synchronization with the cell, because the multiple cells and the UE may include the RLC layer and the bearer channel of the PDCP.
  • FIG. 12 is a schematic flowchart of a bearer channel configuration (establishment) according to an embodiment of the present invention. As shown in the figure, the process may include:
  • Step 121 The first base station sends an RRC message transmission configuration request message to the second base station, where the RRC message transmission is performed. And a configuration request message, configured to request the second base station to establish a bearer channel for forwarding the RRC message or the RRC message processing data packet generated by the first base station.
  • the first eNB may send the RRC message transmission configuration request message to the second base station, or may send the configuration request message of the RRC message bearer channel to the UE, and instruct the UE to configure the RRC message bearer channel.
  • the request message is sent to the second base station.
  • Step 122 The second base station receives the RRC message transmission configuration request message, and establishes, according to the RRC message transmission configuration request message, the second base station to forward the RRC message generated by the first base station or the bearer channel of the RRC message processing data packet.
  • the foregoing process may further include:
  • Step 123 The second base station returns an acknowledgement message corresponding to the RRC message transmission configuration request message to the first base station. Further, the foregoing process may further include:
  • Step 124 The first base station and/or the second base station send configuration information of the bearer channel to the UE.
  • the foregoing process may further include:
  • Step 125 The UE returns configuration completion information or failure information to the first and/or the second base station.
  • the configuration completion information may be an RRC reconfiguration complete message, which is used to indicate that the configuration of the bearer channel is complete; or the configuration completion information may be a MAC CE, which is used to indicate that the configuration of the bearer channel is complete.
  • Steps 123 and 124 in the above process do not have strict timing requirements.
  • the RRC message transmission configuration request message may be used to request the second base station to establish a bearer channel for forwarding the RRC message or the RRC message processing data packet generated by the first base station signaling radio bearer.
  • the configuration request message may carry one or a combination of the following information:
  • the first base station forwards the RRC message generated by the second base station or the bearer channel configuration information of the RRC message processing data packet; the first base station expects the second base station established by the second base station to forward the RRC message or the RRC message processing data packet generated by the first base station
  • the configuration information of the bearer channel may include PDCP layer configuration information of the first base station.
  • the configuration information of the bearer channel includes: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit At least one parameter configuration information in the information and physical layer unit information.
  • the first base station may further carry the interface information between the first base station and the second base station in an RRC message transmission configuration request message, where the interface information is that the second base station forwards the RRC message or the RRC message generated by the first base station.
  • the interface information of the inter-base station interface corresponding to the bearer channel of the data packet on the first base station side.
  • the interface information may include one or a combination of the following: GTP (General Data Transfer Platform) pipe end point information and/or transport layer address information, channel information between the RRC entity unit and the PDCP entity unit (channel information may include Channel identification information and channel configuration information), channel information between the PDCP entity unit and the RLC entity unit.
  • GTP General Data Transfer Platform
  • channel information may include Channel identification information and channel configuration information
  • channel information between the PDCP entity unit and the RLC entity unit channel information between the PDCP entity unit and the RLC entity unit.
  • the second base station may carry the interface information between the second base station and the first base station in an acknowledgement message, where the interface is a bearer channel corresponding to the second base station forwarding the RRC message generated by the first base station or the RRC message processing data packet.
  • the interface information may include one or a combination of: GTP pipe end point information and/or transport layer address information, channel information between the RRC entity unit and the PDCP entity unit, channel information between the PDCP entity unit and the RLC entity unit.
  • the first base station may configure a bearer channel of the first base station according to the interface information.
  • the confirmation request information may further include bearer channel configuration information of the second station, and/or the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station.
  • the configuration information of the bearer channel may include: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit At least one parameter configuration information in the information and physical layer unit information.
  • the first base station sends configuration information of the bearer channel for transmitting the RRC message to the UE, where the sent bearer channel configuration information includes one or a combination of the following:
  • the first base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the second base station;
  • the second base station sends configuration information of the bearer channel of the RRC message generated by the second base station;
  • the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station.
  • the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station may be: the PDCP entity unit information, the RLC entity unit information, the channel identifier between the PDCP and the RLC, and the PDCP. And at least one parameter configuration information between the channel configuration information, the logical channel identifier, the logical channel configuration information, the MAC entity unit information, and the physical layer unit information.
  • the second base station established by the second base station forwards the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station, and may include: a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a physical layer entity unit. Or, comprising: an RLC entity unit, a MAC entity unit, and a physical layer entity unit, where the RLC entity unit, the MAC entity unit, and the physical layer entity unit are in a bearer channel that is sent by the first base station to the RRC message generated by the first base station;
  • the bearer channel formed by the PDCP entity unit or the independent PDCP entity unit provides services for the terminal.
  • the first base station may further send indication information to the terminal, where the indication information is used to trigger the terminal to receive or send data by using the bearer channel of the first base station and/or the second base station for transmitting the RRC message.
  • the indication information may include: a combination of one or more of an RRC layer indication information, a MAC layer command, and a physical layer command of the first base station.
  • the first base station sends configuration information of the bearer channel for transmitting the RRC message to the UE. Then, the indication information sent by the terminal to the first base station may be received, and the first base station is triggered to start transmitting and receiving data according to the configured configuration information of the carried bearer channel. Specifically, the first base station receives the indication information sent by the terminal and/or the indication information of the terminal forwarded by the second base station, and uses the first base station and/or the second base station to transmit the RRC message or the RRC message processing data packet to receive the bearer channel. Or send data for the terminal.
  • the first base station or the second base station may further send auxiliary information to the terminal, where the auxiliary information may include a C-RNTI (Cell Radio Network Temporary Identifier) and/or timing for the second base station cell. Advance information.
  • C-RNTI Cell Radio Network Temporary Identifier
  • the method may further include: sending, by the second base station, a first request message to the first base station, where the first request message is used to request the first base station to go to the second The base station sends an RRC message transmission configuration request message.
  • the first base station may also initiate a modification process of the bearer channel configuration information.
  • FIG. 13 is a schematic flowchart of a modification process of a bearer channel configuration information according to an embodiment of the present invention.
  • the process may include: Step 131: The first base station sends an RRC message transmission configuration modification message to the second base station, where the RRC message transmission configuration modification message is sent. And the second base station is configured to modify, by the second base station, the bearer channel for forwarding the RRC message or the RRC message processing data packet generated by the first base station, and/or for modifying the configuration information of the bearer channel of the first base station of the second base station.
  • Step 132 In the case that the RRC message transmission configuration modification message is used to request the second base station to modify the second base station to forward the RRC message generated by the first base station or the bearer channel of the RRC message processing data packet, the second base station transmits according to the RRC message. And configuring a modification message, and modifying, by the second base station, the RRC message generated by the first base station or the carrier channel of the RRC message processing data packet.
  • the foregoing process may further include:
  • Step 133 The second base station returns an acknowledgement message corresponding to the RRC message transmission configuration modification message to the first base station. Further, the foregoing process may further include:
  • Step 134 The first base station and/or the second base station send configuration information of the modified bearer channel to the UE.
  • the foregoing process may further include:
  • Step 135 The UE returns configuration completion information or failure information to the first and/or the second base station.
  • the configuration completion information may be an RRC reconfiguration complete message, which is used to indicate that the modification of the bearer channel is complete; or the configuration completion information may be a MAC CE, which is used to indicate that the modification of the bearer channel is completed.
  • the configuration modification message carries the configuration information of the bearer channel that the first base station expects the second base station to modify
  • the configuration information of the bearer channel that the first base station expects the second base station to modify may include: PDCP physical unit information Parameter configuration information of at least one of RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit information, and physical layer unit information .
  • the configuration modification message is used to notify the second base station that the configuration information of the bearer channel of the first base station is modified, and the configuration modification message may carry the configuration information of the bearer channel modified by the first base station.
  • the configuration information of the bearer channel modified by the first base station that is carried in the configuration modification message may include: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, and channel configuration between PDCP and RLC.
  • Parameter configuration information of at least one of information, logical channel identification, logical channel configuration information, MAC entity unit information, and physical layer unit information.
  • the acknowledgment message returned by the second base station may include: the second base station that is modified by the second base station forwards configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station.
  • the first base station may send, to the terminal, the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the second base station modified by the second base station.
  • the method may further include: the second base station sends a second request message to the first base station, where the second request message is used to request the first base station to send a configuration modification message of the RRC message transmission channel to the second base station.
  • the first base station may also initiate a process of releasing the bearer channel.
  • FIG. 14 is a schematic flowchart of a bearer channel release according to an embodiment of the present invention.
  • the process may include: Step 141: A first base station sends an RRC message transmission configuration release message to a second base station, where the RRC message transmission configuration release message is And a host channel for requesting the second base station to release the RRC message or the RRC message processing data packet generated by the first base station, and/or for notifying the second base station that the first base station releases the bearer channel for sending the RRC message.
  • Step 142 In the case that the RRC message bearer channel release message is used to request the second base station to release the second base station to forward the RRC message generated by the first base station or the bearer channel of the RRC message processing data packet, the second base station transmits according to the RRC message.
  • the configuration release message releases the bearer channel that the second base station forwards the RRC message or the RRC message processing data packet generated by the first base station.
  • the foregoing process may further include:
  • Step 143 The second base station returns, to the first base station, an acknowledgement message corresponding to the RRC message transmission configuration release message.
  • the foregoing process may further include:
  • Step 144 The first base station and/or the second base station notify the UE of the release of the bearer channel.
  • the foregoing process may further include:
  • Step 145 The UE returns bearer channel configuration completion information or failure information to the first base station and/or the second base station.
  • the configuration completion information is RRC reconfiguration complete information, and is used to indicate that the release of the bearer channel of the RRC message sent by the first base station and/or the second base station is complete; or the configuration completion information is MACCE, and is used to indicate the first base station and/or Or the release of the bearer channel of the RRC message sent by the second base station is completed.
  • the first base station may send an RRC message transmission configuration release message to the UE, where the release message is used for The terminal is requested to release the bearer channel of the RRC message or the RRC message processing data packet generated by the second base station.
  • the foregoing process may further include: releasing, by the first base station, the first base station, where the second base station forwards the generated by the first base station
  • the RRC message or RRC message handles the bearer channel of the data packet, such as PDCP entity unit configuration information.
  • the second base station initiates the bearer channel configuration process, or initiates the bearer channel modification process, or initiates the bearer channel release process, which can be implemented by referring to the foregoing corresponding process, and is not described in detail herein.
  • the foregoing scheme 3 is applicable to all of the foregoing RRC message transmission structures.
  • the configuration information of the bearer channel sent by the first base station and/or the second base station to the UE may include: on the first base station and/or the second base station, used to send an RRC message and/or an RRC message processing data packet.
  • the content of the configuration information of the bearer channel may include one or a combination of the following: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel ID, logical channel configuration, MAC entity unit information, PHY entity unit information, channel information of the physical layer.
  • the first base station and/or the second base station may send the indication information corresponding to the configuration information of the bearer channel to the terminal.
  • the indication information may be carried in the configuration information of the bearer channel.
  • the indication information may be used to indicate a generated base station or a base station cell of the RRC message sent by the bearer channel, or a type of a generated base station or a base station cell and an RRC message indicating an RRC message sent by the bearer channel, or used to indicate The type of the RRC message sent by the bearer channel.
  • the content of the indication information may include one of the following: SRB identification information corresponding to the bearer channel, identification information of the bearer channel, identification information of the base station or the base station cell, and logical channel identification information.
  • the type of the RRC message may indicate that the RRC message is a mobility management related message type, or a type of an RRC message related to a MAC layer and a physical layer, or a type of an RRC message related to a MAC layer and a physical layer of a specified type of base station, or The type of message related to mobility management for a given type of base station.
  • a specific type of RRC message is generated only by a specific base station. Further, the type of the RRC message related to the MAC layer and the physical layer may not include the power control related RRC message.
  • the first base station and/or the second base station may also send one or a combination of the following mapping relationship information to the UE, and the “information information” in the mapping relationship information is the configuration information of the foregoing bearer channel.
  • the mapping relationship information may include:
  • mapping information indicating the mapping relationship between the information and the base station or the base station cell, where the base station or the base station cell is the generating base station or the base station cell of the RRC message sent on the bearer channel corresponding to the indication information;
  • mapping information indicating the mapping information with the base station or the base station cell and the type of the RRC message, where the base station or the base station cell is the generating base station or the base station cell of the RRC message sent on the bearer channel corresponding to the indication information; And mapping information indicating the type of the RRC message sent on the bearer channel corresponding to the indication information.
  • the SRB of the signaling radio bearer channel may be an existing SRB (SRBO, SRB1 or SRB2) or an extended SRB, represented as SRBN (N is a natural number greater than 2), such as SRB3.
  • SRBO existing SRB
  • SRBN extended SRB
  • SRBxx-yy where xx represents the base station and or base station cell information for transmitting the RRC message of the SRB, and yy represents the identifier of the corresponding SRB.
  • xx represents the base station and or base station cell information for transmitting the RRC message of the SRB
  • yy represents the identifier of the corresponding SRB.
  • xx and yy can be interchanged.
  • the identifier information of the bearer channel may be an SRB identifier, or may be a new type of bearer identifier defined in the embodiment of the present invention.
  • the logical channel identifier used by the SRB or the bearer channel may be an existing logical channel identifier (logical channel 0 or logical channel 1), or may be an extended logical channel identifier, where the extended logical channel identifier is 0. Logical channel identifiers other than 1 and 1, such as logical channel 2.
  • the configuration information of the bearer channel may include the SRB bearer identifier and configuration information of the corresponding multiple bearer channels.
  • the SRB carries the Nth bearer channel of the corresponding multiple bearer channels or the base station and/or the base station cell to which the PDCP layer of the Mth bearer channel belongs, indicating the information of the base station and/or the base station cell of the RRC message identified by the SRB.
  • both M and N are 1.
  • the configuration information of the bearer channel can include the following configuration information:
  • SRB1 (MeNB, PDCP, etc., SeNB PDCP, etc., MeNB PDCP+SeNB RLC, etc.)
  • the first bearer channel (the bearer channel identified by "MeNB, PDCP, etc.") or the base station (MeNB) to which the PDCP of the first bearer channel belongs is the base station for generating the RRC message identified by SRB1.
  • the generated base station of the RRC message identified by the SRC may be indicated if the SRB corresponds to multiple bearer channels.
  • the configuration information of the bearer channel may include configuration information of multiple bearer channels.
  • the configuration information of the multiple bearer channels is the same as the bearer identifier of the Nth bearer channel of the multiple bearer channels identified by the SRB identifier, and/or the generated base station of the RRC message identified by the SRB identifier.
  • the information of the base station cell is the same as the base station and/or the base station cell to which the Mth bearer channel belongs.
  • M and N have the same value and may each have a value of 1.
  • the configuration information of the bearer channel includes multiple bearer channel configuration information.
  • the bearer channel of the RRC message is from the base station of the RRC message to the terminal through the other base station.
  • the configuration information of the combined bearer channel may include the following configuration information: (MeNB SRB1, SeNB SRB3)
  • the configuration information of the combined bearer channel includes configuration information of two bearer channels: MeNB SRB1 and SeNB SRB3, and the SRB1 of the combined bearer channel may be the same as the bearer identifier of the first bearer channel "MeNB SRB1", or/and
  • the generating base station and/or the base station cell of the RRC message identified by the SRB1 of the combined bearer channel is the same as the base station and/or the base station cell "MeNB" to which the first bearer channel "MeNB SRB1" belongs. That is, according to the above rules, the SRB identifier of the combined bearer channel may be determined according to the configuration information of the combined bearer channel, or the type of the RRC message transmitted by the combined channel may be determined.
  • the specific content of the bearer channel configuration information sent by the base station to the terminal is also applicable to the foregoing scheme 1 and scheme 2.
  • the related processing operations on the terminal side may include: receiving, by the terminal, configuration information of the bearer channel sent by the base station, where the bearer channel includes one or a combination of the following configuration information: Transmitting, by the first base station, configuration information of a bearer channel of the RRC message generated by the first base station;
  • the first base station forwards the configuration information of the bearer channel of the RRC message or the RRC message data packet generated by the second base station; the second base station sends the configuration information of the bearer channel of the RRC message generated by the second base station;
  • the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message data packet generated by the first base station. Further, after receiving the configuration information of the bearer channel sent by the base station, the terminal may receive and send data from the corresponding bearer channel according to the received configuration information of the bearer channel; or, after accessing the base station by using a random access procedure And receiving and transmitting data from the corresponding bearer channel according to the configuration information of the pre-configured bearer channel for transmitting the RRC message. Specifically, the process for the terminal to receive the RRC message from the corresponding bearer channel according to the received configuration information of the bearer channel may include: the terminal receiving the indication information sent by the base station, and using the received information according to the indication information.
  • the configuration information of the bearer channel establishes a bearer channel, and receives or transmits data from the corresponding bearer channel.
  • the indication information may include: a combination of one or more of an RRC layer indication information, a MAC CE, and a physical layer command of the base station. Further, the indication information may be sent by using RRC dedicated signaling.
  • the process of receiving, by the terminal, the RRC message from the corresponding bearer channel according to the received configuration information of the bearer channel includes: the terminal sending the indication information to the base station, and triggering the base station that receives the indication information according to the The configuration information of the transmitted bearer channel starts to transmit and receive data, and further, the base station forwards data by using another base station, where the base station and the another base station refer to the first base station and the second base station, or the foregoing a second base station and the first base station described above). Further, the terminal receives and transmits data from the corresponding bearer channel by using the bearer channel corresponding to the received configuration information of the bearer channel according to the indication information.
  • the indication information is an RRC message, or a MACCE, or a physical layer command, or a measurement report.
  • the indication information is an RRC message, specifically for triggering a base station to send and receive data on the bearer channel.
  • the measurement report may carry dedicated measurement information that triggers the base station to transmit and receive data on the bearer channel.
  • the base station is configured in advance to trigger a measurement event that the base station sends and/or receives data on the bearer channel, and after detecting that the measurement result meets the measurement event reporting condition, the terminal sends a measurement report based on the measurement event to the base station, and triggers the base station to be in the bearer.
  • the channel transmits and/or receives data, and or prompts the base station that the terminal is ready to receive and or transmit data of the bearer channel.
  • the indication information may also be sent to the base station by using a MAC CE or a physical layer command, in consideration of the RRC message transmission delay being large. After the terminal sends the indication information in this manner, the base station can quickly parse the information.
  • the indication information may be at least one and or a combination of an RRC message, or a MACCE, or a physical layer command.
  • the terminal may send the indication information to a cell of the first base station.
  • the terminal may send the indication information to the cell of the second base station.
  • the meaning of the indication information may be forwarded to the first base station, and the first base station is triggered to the second base station.
  • the base station transmits data.
  • the indication information of the UE may be sent to the first base station (or the cell of the first base station), or may be sent to The second base station (or the cell of the second base station). Sending twice can also be done in no particular order.
  • the first base station sends data to the second base station, and the second base station receives the data of the first base station and forwards the data to the UE.
  • the terminal may further receive auxiliary information sent by the base station, where the auxiliary information includes a C-RNTI allocated by the base station to the terminal for the second base station cell.
  • the terminal may further include: the terminal receiving configuration information of the modified bearer channel for transmitting the RRC message or the RRC message data packet sent by the base station.
  • the method may further include: receiving, by the terminal, a release message of an RRC message bearer channel sent by the base station, and releasing, according to the release message, a corresponding RRC message or RRC message data.
  • the carrying channel of the package may further include: receiving, by the terminal, a release message of an RRC message bearer channel sent by the base station, and releasing, according to the release message, a corresponding RRC message or RRC message data.
  • the configuration information of the bearer channel may include: signaling bearer identification information, PDCP physical unit information, RLC physical unit information, channel identifier between PDCP and RLC, PDCP, and At least one parameter configuration information of channel configuration information, logical channel identifier, logical channel configuration information, MAC entity unit information, and physical layer unit information between the RLCs. Further, the configuration information of the bearer channel may further include: at least one of network node information of a PDCP entity unit, network node information of an RLC entity unit, network node information of a MAC entity unit, and network node information of a physical layer unit.
  • the network node information may be at least one of identification information of a network node, frequency information of a network node, PCI (Physical Cell Identity), and ECGI (ETUI Cell Global Identity) information.
  • the configuration information of the bearer channel may further include: a PDCP entity unit, an RLC entity unit, a MAC entity unit, a first network node information of the same physical layer unit, and or an RLC entity unit, a MAC entity unit, and a physical layer.
  • the second network node information of the same unit may be at least one of identification information of a network node, frequency information of a network node, PCI (Physical Cell Identity), and ECGI (ETUI Cell Global Identity) information.
  • the configuration information of the bearer channel may further include: a PDCP entity unit, an RLC entity unit, a MAC entity unit, a first network node information of the same physical layer unit, and or an RLC entity unit, a MAC entity unit, and a physical layer.
  • the description of the foregoing solution 3 shows that the management of the bearer channel for transmitting the RRC message is implemented by the foregoing interaction process, and may include the establishment of the bearer channel, the modification of the bearer channel, and the release process of the bearer channel, especially The management configuration of the signaling radio bearer channel across the base station is implemented.
  • the bearer channel established by the foregoing method can implement cross-base station forwarding of RRC messages, and/or cross-base station forwarding of feedback information of RRC messages.
  • the above scheme is applicable to a variety of RRC message transmission architectures.
  • a control plane data packet such as an RRC message or an RRC message processing data packet
  • it is often transparent.
  • the second base station forwards the RRC message generated by the first base station, it does not know the specific content, which may cause the second base station to delay the transmission of the RRC message according to its own scheduling situation.
  • the first base station when forwarding the control plane data packet, may further send the control plane data packet when transmitting the control plane data packet that needs to be forwarded by the second base station to the second base station.
  • the indication information may be used to indicate information such as a sending priority of the corresponding control plane data packet and/or a processing operation of the second base station, and the second base station may forward the corresponding control plane data packet according to the indication information.
  • FIG. 15 is a schematic diagram of a forwarding process of a control plane data packet according to an embodiment of the present invention.
  • the "first base station" in the flow may represent the MeNB or the SeNB. If the "first base station" represents the MeNB, the "second base station” represents the SeNB; if the "first base station” represents the SeNB, the “second base station” may represent MeNB and/or other SeNBs.
  • the process can include:
  • Step 151 The first base station sends a control plane data packet and indication information to the second base station, so that the second base station sends the control plane data packet and/or the scheduling information of the second base station according to the indication information.
  • Step 152 After receiving the control plane data packet, the second base station sends the control plane data packet and/or the scheduling information of the second base station according to the corresponding indication information.
  • the first base station may send the indication information corresponding to the control plane data packet before transmitting the control plane data packet, or send the indication information corresponding to the control plane data packet after transmitting the control plane data packet, or may Sent at the same time as the control plane packet.
  • the indication information may include one or a combination of the following:
  • the time information of the control plane data packet wherein the time information includes at least one of a time urgency, a maximum tolerance delay, and the like;
  • Processing information of the control plane data packet by the base station that forwards the control plane data packet wherein different processing information may represent different forwarding policies.
  • the second base station and/or the second base station', the area release information for the connection of the terminal are provided.
  • the second base station and/or the second base station cell release information for the connection of the data radio bearer and/or the signalling radio bearer of the terminal.
  • the basis of the control plane data packet classification may include: a protocol layer to which the control plane data packet belongs, including: an RRC layer message, a PDCP layer message, an RLC layer message, a MAC layer message, and one of physical layer messages.
  • the control plane packet classification may also be based on: mobility management related messages, physical layer radio resource configuration information, NAS (Non-Access Stratum) information, or handover base stations.
  • the classification information of the control plane data packet is used to indicate that the information corresponding to the control plane data packet (ie, the control information in the control plane data packet) is a mobility management related message, or a physical layer radio resource configuration information, or a NAC layer information. , or switch the message of the second base station.
  • the classification information of the control plane data packet may also be used to instruct the second base station to perform corresponding scheduling and transmission processing.
  • the classification information of the control plane data packet can indicate which type of information (the mobility management related message or the physical layer radio resource configuration information, etc.) of the information corresponding to the control plane data packet belongs to, and
  • the base station for forwarding control plane data packets can be represented to perform corresponding scheduling and transmission processing.
  • the second base station when forwarding the control plane data packet, the second base station has a higher temporal urgency of the control plane data packet indicated by the corresponding indication information, or a higher importance of the control plane data packet, or control plane data. If the level of the packet is high, the second base station preferentially schedules and transmits the control plane data packet.
  • the threshold value of the urgency parameter corresponding to the control plane data packet that needs to be preferentially scheduled and transmitted, or the threshold value of the importance parameter, or the threshold value of the level parameter may be set according to actual needs.
  • the second base station may compare the parameter value in the indication information corresponding to the control data packet that needs to be forwarded with the threshold value of the corresponding parameter to determine a scheduling and sending policy adopted by the control data packet.
  • the correspondence between the classification information of the control plane data packet and the forwarding strategy of the control plane data packet may be preset according to requirements.
  • the second base station may use the corresponding forwarding policy to schedule the control plane data packet according to the type of the control plane data packet indicated by the corresponding indication information. send.
  • the control plane data packet may be scheduled and sent according to the forwarding policy of the control plane data packet indicated by the corresponding indication information.
  • step 152 when the second base station forwards the control plane data packet, the control plane data packet may be scheduled and sent according to the processing information of the control plane data packet indicated by the corresponding indication information.
  • the control plane data packet in the foregoing process may include: an RRC message or an RRC message after passing through the RRC entity unit,
  • a packet processed by a PDCP entity unit, an RLC entity unit, or a MAC entity unit may also be other types of control messages or data packets processed by the control message through the RRC entity unit, the PDCP entity unit, the RLC entity unit or the MAC entity unit.
  • a specific example of the foregoing control plane packet forwarding method is: when the first base station decides to switch the UE from the second base station, the handover command and the corresponding indication information may be sent to the second base station, where the indication information indicates the handover command
  • the urgency is higher, the degree of importance is higher, the mobility information is, the level is one level (higher level), or the second base station is notified to immediately send the message (stopping the reconfiguration information transmission of the second base station itself).
  • the second base station may send the handover command to the UE as soon as possible according to the corresponding indication information, and may further stop transmitting the control plane to the UE, considering that the subsequent UE will switch to another base station. Or information on the data side.
  • the second base station When the second base station has a control data packet that needs to be forwarded by the first base station, a processing flow similar to the above process may also be employed.
  • the method for controlling data packet forwarding provided by the fourth scheme can be applied to the foregoing scheme 1, scheme 2 or scheme 3.
  • the indication corresponding to the control data packet is also The information is also sent to the second base station, and the indication information is used to guide the second base station to schedule and send the control plane data packet, so that the forwarding of the control data packet is controlled to a certain extent.
  • the protocol description is given by how to forward the RRC message or the RRC message to process the data packet, or how to forward the feedback information of the RRC message.
  • the forwarded message or the processed data packet enables the forwarding base station to forward in time.
  • the MeNB may send an RRC message or an RRC message processing data packet generated by the MeNB to the UE through the DL-1 and/or the DL-2.
  • the process of the MeNB transmitting the RRC message generated by the MeNB through the DL-1 includes: RRC entity unit generation of the MeNB
  • the RRC message processes the data packet and submits it to the PDCP entity unit on the MeNB. After the processing of the PDCP entity unit is completed, the RCP entity unit, the MAC entity unit and the PHY entity unit on the MeNB are sequentially passed, and the RRC message processing data packet is encapsulated. Send an RRC message to the UE.
  • the process of the MeNB transmitting the RRC message generated by the MeNB through the DL-2 includes: RRC entity unit generation of the MeNB
  • the RRC message processes the data packet and sends it to the PDCP entity unit on the SeNB.
  • the RLC entity unit, the MAC entity unit and the PHY entity unit on the SeNB are sequentially passed, and the RRC message processing data is processed.
  • the packet is encapsulated as an RRC message and sent to the UE.
  • the IE in the RRC message processing data packet can be distinguished, or the RRC message processing data packet carries the identifier for generating the
  • the UE determines that the RRC message is generated by the MeNB, and then passes the
  • a group of PDCP entity units, RLC entity units, MAC entity units, and PHY entity units corresponding to the MeNB are processed and transmitted, and/or, through a group of PDCP entity units, RLC entity units, MAC entity units, and PHY entity units corresponding to the SeNB. Sent after processing.
  • the feedback information of the RRC message carries indication information, indicating that the base station that generates the RRC message is the MeNB.
  • the PDCP entity unit of the MeNB After receiving the feedback information of the RRC message, the PDCP entity unit of the MeNB determines, according to the indication information carried in the feedback information, that the RRC message is generated by the local base station, and submits the feedback information of the RRC message to the RRC entity of the MeNB. The unit is parsed. After receiving the feedback information of the RRC message, the PDCP entity unit of the SeNB determines, according to the indication information carried in the feedback information, that the RRC message is generated by the MeNB, and sends the feedback information of the RRC message to the RRC entity unit of the MeNB.
  • the bearer channel for transmitting the feedback information of the RRC message is as shown in UL-1 and UL-2 in FIG. 5B.
  • UL-1 is the uplink channel corresponding to DL-1
  • UL-2 is the uplink channel corresponding to DL-2.
  • the UE may also carry the indication in the feedback information of the RRC message when the UE sends the feedback information of the RRC message to the group of the PDCP entity unit, the RLC entity unit, the MAC entity unit, and the PHY entity unit corresponding to the SeNB.
  • the information indicates that the SeNB parses the feedback information of the RRC message.
  • the PDCP entity unit of the SeNB determines that the base station parses according to the indication information carried in the feedback information, The feedback information of the RRC message is sent to the RRC entity unit of the SeNB.
  • the sending process of the RRC message or the RRC message data packet generated by the SeNB and the sending process of the feedback information of the RRC message are as described above, and are not described herein again.
  • the UE may perform processing after being processed by a group of physical units corresponding to the generated base station of the RRC message, and/or may be processed by a group of physical units corresponding to other base stations. send.
  • the uplink channel through which the feedback information of the RRC message is sent may be selected by the UE according to the configuration or protocol of the network side, or the uplink channel that sends the feedback information of the RRC message may be selected by the UE.
  • the network side may configure the following policy to the terminal: If the base station that generates the RRC message is the MeNB, the group of physical units corresponding to the SeNB is selected for processing and then sent, so that the feedback information of the RRC message is forwarded by the SeNB to the RRC message generated by the MeNB.
  • the uplink channel carrying the channel is sent to the MeNB.
  • the MeNB may send an RRC message or an RRC message processing data packet generated by the MeNB to the UE through the DL-1 and/or the DL-2.
  • the process of the MeNB transmitting the RRC message generated by the MeNB through the DL-1 includes: RRC entity unit generation of the MeNB
  • the RRC message processes the data packet and submits it to the PDCP entity unit on the MeNB. After the processing of the PDCP entity unit is completed, the RCP entity unit, the MAC entity unit and the PHY entity unit on the MeNB are sequentially passed, and the RRC message processing data packet is encapsulated. Send an RRC message to the UE.
  • the process of the MeNB transmitting the RRC message generated by the MeNB through the DL-2 includes: the RRC entity unit of the MeNB generates an RRC message processing data packet, and sends the RRC message processing data packet to the PDCP entity unit on the SeNB, and after processing the upper PDCP entity unit of the SeNB,
  • the RRC message processing data packet is encapsulated into an RRC message and sent to the UE via the RLC entity unit, the MAC entity unit, and the PHY entity unit on the SeNB.
  • the SeNB Since the UE side sends the RRC message generated by the MeNB and the RRC message or the RRC message processing data packet generated by the SeNB to the MeNB, different bearer channels are used, and the SeNB sends the RRC message generated by the SeNB itself and the RRC message or RRC generated by the MeNB.
  • the message processing data packet uses different bearer channels. Therefore, for the UE, the base station that generates the RRC message can be determined according to a group of entity units that receive the RRC message or according to the bearer channel that sends the RRC message. Therefore, when transmitting the feedback information of the RRC message, the UE may send the feedback information of the RRC message to the base station that generates the RRC message by using the uplink channel of the bearer channel that sends the RRC message.
  • the UE after receiving the RRC message from the DL-1, the UE sends the feedback information of the RRC message to the MeNB through the uplink channel UL-1 corresponding to the DL-1.
  • the UE After receiving the RRC message from the DL-2, the UE sends the feedback information of the RRC message to the MeNB through the SeNB through the uplink channel UL-2 corresponding to the DL-2.
  • the process of generating an RRC message by the base station may also be performed by referring to the method in the first example, that is, the RRC message or the RRC message generated by the IE and the SeNB in the RRC message processing data packet generated by the RRC entity unit of the MeNB.
  • the IE in the data packet may be distinguished, or the RRC message processing data packet carries information for identifying a base station and/or a base station cell that generates the RRC message.
  • the UE may also determine the base station that generates the RRC message by using the method in the first instance. After receiving the RRC message, the UE may also send the feedback information of the RRC message in the manner described in the first example, and details are not described herein.
  • the MeNB may send an RRC message or an RRC message processing data packet generated by the MeNB to the UE through the DL-1 and/or the DL-2.
  • the process of the MeNB transmitting the RRC message generated by the MeNB by using the eNB includes: the RRC entity unit of the MeNB generates an RRC message processing data packet, and submits the RRC message processing data packet to the PDCP entity unit on the MeNB. After the processing of the PDCP entity unit is completed, the MeNB sequentially passes through the MeNB.
  • the RLC entity unit, the MAC entity unit and the PHY entity unit, the RRC message processing data packet is encapsulated as an RRC message and sent to the UE.
  • the process of the MeNB transmitting the RRC message generated by the MeNB through the DL-2 includes: the RRC entity unit of the MeNB generates an RRC message processing data packet, and sends the RRC message processing data packet to the PDCP entity unit on the MeNB, and the upper PDCP entity unit of the MeNB generates the RRC message to the SeNB.
  • the RLC entity unit on the SeNB is processed, and then passes through the MAC entity unit and the PHY entity unit on the SeNB, and the RRC message processing data packet is encapsulated into an RRC message and sent to the UE.
  • the principle that the UE sends the feedback information of the RRC message is: Which PDCP entity unit obtains the RRC message from the UE, and the feedback message of the RRC message is sent to the corresponding PDCP entity unit.
  • the process of sending an RRC message by the UE may include: after receiving the RRC message, the UE sends the feedback information of the RRC message to the UL through the PD-based entity unit of the MeNB. 1 or UL-2 is sent to the PDCP entity unit of the MeNB.
  • the base station when the base station configures the SRB bearer or sends the RRC message to the UE, the base station may notify the UE of the bearer or the source base station of the RRC message sent by the channel (that is, the base station that generates the RRC message). In this way, the UE can determine the source of the RRC message in the following manner:
  • Mode 1 After the UE receives the RRC message, the PDCP entity unit of the UE carries the indication information when the SDU is submitted to the RRC entity, and the indication information indicates the base station that generates the RRC message;
  • the PDCP entity of the UE After the UE receives the RRC message, the PDCP entity of the UE carries the identifier information of the PDCP entity unit or the channel ID of the PDCP entity unit to the RRC entity unit when submitting the SDU to the RRC entity. In this way, the UE can distinguish the source of the SDU of the PDCP layer of the received RRC message (i.e., the base station that generated the RRC message).
  • process of generating an RRC message by the base station may also be performed by referring to the method in the first instance, that is, the MeNB.
  • the IE in the RRC message processing data packet generated by the RRC entity unit is distinguishable from the IE message generated by the SeNB or the IE in the RRC message processing data packet, or the RRC message processing data packet carries a base station for identifying the RRC message and / or information of the base station cell.
  • the UE may also use the method in the first instance to determine that the RRC message is generated. Base station. After receiving the RRC message, the UE may also send the feedback information of the RRC message in the manner described in the first example, and details are not described herein.
  • the base station may notify the UE of the situation. Further, the RRC message that is received in error may be sent to another base station.
  • This embodiment describes a specific implementation process of the first and second embodiments in the case of employing the above-described transmission architecture 4 and transmission architecture 5.
  • the MeNB may send an RRC message or an RRC message processing data packet generated by the MeNB to the UE through the DL-1 and/or the DL-2.
  • the RRC message is generated by the eNB.
  • the information of the base station and/or the base station cell of the message, the MeNB and the SeNB do not distinguish the RRC message by using different IEs.
  • the feedback information of the RRC message may be sent to the MeNB through the UL-1, or may be sent to the MeNB through the UL-2 through the SeNB.
  • the MeNB may quickly send the RRC message to the UE by using the MAC CE of the SeNB. For example, when the MeNB decides to initiate the handover of the UE to the SeNB, it may send an RRC message (handover command) to the SeNB, and instruct the SeNB to use the MAC CE to send the RRC message (handover command) to the UE.
  • the MeNB may send an RRC message (handover command) to the SeNB, and instruct the SeNB to use the MAC CE to send the RRC message (handover command) to the UE.
  • This embodiment describes a specific implementation process of the third solution.
  • the process initiates cross-base station forwarding with the MeNB.
  • the signaling radio bearer of the RRC message or the RRC message processing data packet is described as an example.
  • SRB1 in this embodiment is an example of the SRB identifier.
  • the establishment, modification, and release of the signaling radio bearer channel in the embodiment of the present invention are not limited to the signaling bearer channel of the SRB1, and may be the signaling bearer channel of other SRB identifiers.
  • FIG. 16 is a signaling flowchart of a bearer channel configuration process according to an embodiment of the present invention. As shown in the figure, the process may include:
  • Step 161 The MeNB sends an RRC message transmission configuration request message to the SeNB to request to establish a signaling radio bearer channel of the SRB1, that is, request the SeNB to establish a bearer channel for forwarding the RRC message or the RRC message processing packet generated by the MeNB.
  • the RRC message transmission configuration request message carries an SRB1 setup request for requesting configuration of an RLC physical unit, a MAC entity unit, and a PHY entity unit on the SeNB.
  • Step 162 The SeNB configures an RLC entity unit, a MAC entity unit, and a PHY entity unit of the SRB1 according to the RRC message transmission configuration request message, and returns an acknowledgement message to the MeNB after the configuration is completed.
  • the acknowledgment message includes information of one or more of the following physical units configured by the SeNB for SRB1: an RLC entity unit, a MAC entity unit, and a PHY entity unit.
  • Step 163 After receiving the acknowledgement message, the MeNB configures the PDCP entity unit on the MeNB for the SRB1, and sends the configuration information of the SRB1 to the UE.
  • the configuration information of the SRB1 may include: PDCP entity unit information of the SRB1 on the MeNB, and one or a combination of RLC entity unit information, MAC entity unit information, and PHY entity unit information of the SRB1 on the SeNB.
  • Step 164 The UE performs bearer establishment according to the received configuration information of the SRB1, that is, configures the SRB1 on the UE.
  • Step 165 The MeNB sends bearer configuration completion information to the SeNB to notify the SeNB to establish a signaling radio bearer channel for completing SRB1.
  • the entire signaling radio bearer channel of the SRB1 may include a PDCP entity unit on the MeNB, an RLC entity unit, a MAC entity unit, a PHY entity unit on the SeNB, and a PHY entity unit, a MAC entity unit, an RLC entity unit, and a PDCP on the UE. Entity unit.
  • the RRC message or the RRC message data packet generated by the MeNB may be transmitted to the UE through the SeNB.
  • This embodiment describes a specific implementation process of the third solution. The process is described by taking an example in which the MeNB initiates a modification of a signaling radio bearer channel for forwarding an RRC message or an RRC message processing data packet across a base station.
  • SRB1 in this embodiment is an example of the SRB identifier.
  • the establishment, modification, and release of the signaling radio bearer channel in the embodiment of the present invention are not limited to the signaling bearer channel of the SRB1, and may be the signaling bearer channel of other SRB identifiers.
  • FIG. 17 is a signaling flowchart of a bearer channel modification process provided by the present invention
  • the bearer channel established in FIG. 16 is taken as an example. As shown in the figure, the process may include:
  • Step 171 The MeNB sends an RRC message transmission configuration modification message to the SeNB to request the SeNB to modify the signal radio bearer channel of the SRB1, that is, request to modify the bearer channel established by the SeNB to forward the RRC message generated by the MeNB or the RRC message processing data packet.
  • the request information carries the configuration information of the radio signaling bearer channel of the SRB 1 that is expected to be modified on the SeNB, and may include one or a combination of an RLC entity unit, a MAC entity unit, and a PHY entity unit on the SeNB.
  • Step 172 The SeNB transmits a configuration modification message according to the RRC message, and the radio signaling bearer channel of the SRB1 is modified.
  • the configuration information on the SeNB may be one or a combination of RLC entity unit information, MAC entity unit information, and PHY entity unit information of the SRB1 on the SeNB, and return an acknowledgement message to the MeNB. Further, the acknowledgment message may carry configuration information of the radio signaling bearer channel of the modified SRB1 of the SeNB on the SeNB.
  • Step 173 After receiving the acknowledgement message, the MeNB sends a notification message to the UE to notify the SRB1 that the radio signaling bearer channel has been modified. Further, the notification message may carry the signaling radio bearer configuration information of the SRB1, where the configuration information of the SRB1 may include: the PDCP entity unit information of the SRB1 on the MeNB, and the RLC entity unit information and the MAC entity unit information of the SRB1 on the SeNB. One or a combination of PHY entity unit information.
  • Step 174 The UE returns bearer configuration completion information to the MeNB.
  • Step 175 The MeNB sends bearer configuration completion information to the SeNB to notify the SeNB to establish a signaling radio bearer channel that completes the SRB1.
  • This embodiment describes a specific implementation process of the third solution. The process is described by taking the MeNB as a signaling radio bearer channel for releasing the RRC message or the RRC message processing data packet.
  • SRB1 in this embodiment is an example of the SRB identifier.
  • the establishment, modification, and release of the signaling radio bearer channel in the embodiment of the present invention are not limited to the signaling bearer channel of the SRB1, and may be the signaling bearer channel of other SRB identifiers.
  • FIG. 18 is a signaling flowchart of a bearer channel release process according to an embodiment of the present invention.
  • the bearer channel established in FIG. 16 is taken as an example. As shown in the figure, the process may include:
  • Step 181 The MeNB sends an RRC message transmission configuration release message to the SeNB to request the SeNB to release the SRB1 signaling radio bearer channel, that is, request to release the bearer channel established by the SeNB to forward the RRC message generated by the MeNB or the RRC message processing data packet.
  • the request message carries the configuration information of the radio signaling bearer channel of the SRB 1 that is to be released on the SeNB, and may include one or a combination of an RLC entity unit and a MAC entity unit on the SeNB.
  • Step 182 The SeNB transmits the configuration release message according to the RRC message, and releases the configuration information of the radio signaling bearer channel of the SRB1 on the SeNB, which may include the RLC entity unit and the MAC entity unit of the SRB1 on the SeNB, and returns an acknowledgement message to the MeNB.
  • Step 183 After receiving the acknowledgement message, the MeNB releases the configuration information of the radio signaling bearer channel of the SRB1 on the SeNB, that is, releases the PDCP physical unit of the SRB1 on the MeNB. The MeNB sends a notification message to the UE to notify that the radio signaling bearer channel of SRB1 has been released.
  • Step 184 After receiving the notification, the UE releases the configuration information of the radio signaling bearer channel of the SRB1 on the UE, including
  • PDCP entity unit PDCP entity unit, RLC entity unit and MAC entity unit.
  • Step 185 The MeNB sends bearer configuration completion information to the SeNB to notify the SeNB to release the signaling radio bearer channel that completes SRB1.
  • the embodiment of the present invention further provides a base station applicable to the first solution.
  • the base station may be an MeNB or an SeNB.
  • the base station can include: a transceiver and a 1910 processor 1911, wherein each component can perform a corresponding process in the first scheme. as the picture shows:
  • the processor 1911 is configured to generate an RRC message.
  • the transceiver 1910 is configured to send the RRC message generated by the processor to the terminal, and/or send the RRC message or the RRC message processing data packet to the terminal by using the second base station, where the second The number of base stations is one or more.
  • the processor 1911 may generate a first base station to generate a receive random access response message; the transceiver 1910 may send a random access response message generated by the processor 1911 to the terminal, and/or the random access response message or the Random access ring
  • the message processing data packet is sent to the terminal through the second base station, and the number of the second base station is one or more.
  • the random access response message carries the indication information, where the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the random access response is received.
  • the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the random access response is received.
  • Base station and/or base station cell information of feedback information of the message are examples of feedback information of the message.
  • the RRC message carries information for identifying a base station and/or a base station cell that generates the RRC message.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the identifier is used to identify the base station and/or the base station cell that generates the RRC message.
  • the information is a transmission identifier of the RRC message; where, the base station or the base station cell has a mapping relationship with the transmission identifier.
  • the RRC message carries the indication information, where the indication information is used to indicate the bearer channel that sends the feedback information of the RRC message, or the indication information is used to indicate the base station that receives the feedback information of the RRC message and/or Base station cell information.
  • the transceiver 1910 may send the RRC message to the terminal by sending a downlink channel of the first bearer channel of the RRC message generated by the processor; and/or process the RRC message or the RRC message generated by the processor 1911.
  • the second base station forwards the received RRC message or RRC message processing data packet to the terminal by forwarding the RRC message generated by the processor or the second bearer channel of the RRC message processing data packet.
  • the transceiver 1910 sends a first bearer channel of the RRC message generated by the processor 1911, and includes: a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a physical layer unit.
  • the transceiver 1910 may further receive an RRC message or an RRC message processing data packet generated by the second base station, and forward the RRC message or the RRC message processing data packet generated by the second base station.
  • the transceiver 1910 may forward the received RRC message or the RRC message processing data packet by forwarding the RRC message generated by the second base station or the downlink channel of the second bearer channel of the RRC message processing data packet.
  • the transceiver 1910 may forward the RRC message generated by the second base station or the second bearer channel of the RRC message processing data packet, including: a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a physical layer unit; or include: an RLC entity unit , MAC entity unit and physical layer unit.
  • the transceiver 1910 may further receive feedback information of the RRC message sent by the terminal, where the feedback information of the RRC message carries the indication information and/or the transmission identifier.
  • the indication information is used to indicate one of the following:
  • the receiving base station and/or the base station cell indicating the feedback information of the RRC message forwards the feedback information of the RRC message; the receiving base station and/or the base station cell indicating the feedback information of the RRC message parsing the feedback information of the RRC message to the RRC layer;
  • a base station and/or a base station cell that generates the RRC message is indicated.
  • the transmission identifier carried in the feedback information of the RRC message is compared with the transmission identifier carried in the RRC message. Same.
  • the transceiver 1910 can also receive the feedback information of the RRC message sent by the terminal, and then send the feedback information of the received RRC message by forwarding the uplink channel of the bearer channel of the RRC message generated by the second base station.
  • the transceiver 1910 may further send configuration information of the bearer channel to the terminal, where the configuration information carries indication information, where the indication information is used to indicate a generated base station or a base station cell of the RRC message sent by the bearer channel, or used to indicate The type of the base station or the base station cell and the RRC message of the RRC message sent by the bearer channel, or the type of the RRC message sent by the bearer channel.
  • the indication information includes one of the following: SRB identification information corresponding to the bearer channel; identification information of the bearer channel; identification information of the base station or the base station cell; and logical channel identification information.
  • the base station can include: a transceiver 1920 and a processor 1921, wherein each component can perform the corresponding processing in the first scheme.
  • the picture shows:
  • the transceiver 1920 is configured to receive an RRC message or an RRC message processing data packet sent by the first base station, where the RRC message or the RRC message processing data packet is generated by the first base station; and, by using the RRC generated by the first base station The bearer channel of the message sends the RRC message to the terminal.
  • the transceiver 1920 may receive a random access response message or a random access response message processing data packet sent by the first base station, where the random access response message or the random access response message processing data packet is generated by the first base station; And sending, by the second base station, a bearer channel of the random access response message generated by the first base station, to send the random access response message to the terminal.
  • the random access response message carries the indication information, where the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the random access response is received.
  • Base station and/or base station cell information of feedback information of the message are examples of feedback information of the message.
  • the RRC message carries information for identifying a base station and/or a base station cell that generates the RRC message.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the identifier is used to identify the base station and/or the base station cell that generates the RRC message.
  • the information is a transmission identifier of the RRC message; where, the base station or the base station cell has a mapping relationship with the transmission identifier.
  • the RRC message carries the indication information, where the indication information is used to indicate the bearer channel that sends the feedback information of the RRC message, or the indication information is used to indicate the base station that receives the feedback information of the RRC message and/or Base station cell information.
  • the transceiver 1920 can also receive feedback information of the RRC message sent by the terminal, and the feedback information of the RRC message carries the indication information and/or the transmission identifier.
  • the indication information is used to indicate one of the following:
  • the receiving base station and/or the base station cell indicating the feedback information of the RRC message forwards the feedback information of the RRC message; the receiving base station and/or the base station cell indicating the feedback information of the RRC message parsing the feedback information of the RRC message to the RRC layer;
  • a feedback signal indicating that the receiving base station and/or the base station cell of the feedback information of the RRC message will use the RRC message Cell information of the target base station and/or the target base station to which the information is forwarded;
  • a base station and/or a base station cell that generates the RRC message is indicated.
  • the transmission identifier carried in the feedback information of the RRC message is the same as the transmission identifier carried in the RRC message.
  • the transceiver 1920 forwards the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station, including:
  • a PDCP entity unit an RLC entity unit, a MAC entity unit, and a physical layer unit; or include: an RLC entity unit, a MAC entity unit, and a physical layer unit.
  • the transceiver 1920 may further send, to the terminal, configuration information of a bearer channel for transmitting an RRC message and/or an RRC message processing data packet, where the configuration information of the bearer channel includes: a base station that sends the configuration information, and/or other At the base station, configuration information of a bearer channel for transmitting an RRC message and/or an RRC message processing data packet.
  • the configuration information of the bearer channel includes one or a combination of the following information: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel ID, logical channel configuration, MAC entity unit information, physical layer entity unit information, channel information of the physical layer.
  • the transceiver 1920 sends the indication information corresponding to the configuration information of the bearer channel to the terminal, where the indication information is used to indicate the generated base station or the base station cell of the RRC message sent by the bearer channel, or is used to indicate that the bearer channel is sent.
  • the RRC message is generated by the type of the base station or the base station cell and the RRC message, or is used to indicate the type of the RRC message sent by the bearer channel.
  • the embodiment of the present invention further provides a terminal applicable to the second solution.
  • the terminal can include: a transceiver 2010 and a processor 2011, wherein each component can perform a corresponding process in the second solution.
  • the picture shows:
  • the transceiver 2010 is configured to receive the RRC message, and send the feedback information of the RRC message generated by the processor to the base station that generates the RRC message, and/or to the base station that generates the RRC message. Other base stations than others.
  • the processor 2011 is configured to generate feedback information of the RRC message according to the RRC message received by the transceiver.
  • the transceiver 2010 is configured to receive a random access response message, and send feedback information of the random access response message generated by the processor to a base station that generates the random access response message, and/or Sending to other base stations than the base station that generates the random access response message;
  • the processor 2011 is configured to generate, according to the random access response message received by the transceiver, feedback information of the random access response message.
  • the processor is further configured to: after the transceiver receives the RRC message, determine a base station and/or a base station cell that generates the RRC message.
  • the processor is specifically configured to determine, according to the information about the base station and/or the base station cell that is used to identify the RRC message that is generated in the RRC message, the base station and/or the base station cell that generates the RRC message; / or, according to RRC
  • the message content determines a base station and/or a base station cell that generates the RRC message, wherein the RRC messages generated by different base stations and/or base station cells have different contents.
  • the information used to identify the base station and/or the base station cell that generates the RRC message is an identifier of the base station and/or the base station cell; or the identifier is used to identify the base station and/or the base station cell that generates the RRC message.
  • the information is a transmission identifier of the RRC message; where, the base station or the base station cell has a mapping relationship with the transmission identifier.
  • the RRC message carries the indication information, where the indication information is used to indicate the bearer channel that sends the feedback information of the RRC message, or the indication information is used to indicate the base station that receives the feedback information of the RRC message and/or Base station cell information.
  • the random access response message message carries the indication information, where the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the random access is received.
  • the indication information is used to indicate a bearer channel that sends the feedback information of the random access response message, or the indication information is used to indicate that the random access is received.
  • Base station and/or base station cell information in response to feedback information of the message.
  • the feedback information of the RRC message carries indication information, and/or a transmission identifier.
  • the indication information is used to indicate the following content as described above, and details are not described herein again.
  • the transmission identifier carried in the feedback information of the RRC message is the same as the transmission identifier carried in the RRC message.
  • the base station that generates the RRC message is the first base station, and the other base stations other than the base station that generates the RRC message are the second base station, and the number of the second base stations is one or more; the transceiver is specifically used to pass
  • the first base station sends the uplink channel of the bearer channel of the RRC message generated by the first base station, sends the feedback information of the RRC message to the first base station, and/or forwards the RRC message or the RRC message generated by the first base station by using the second base station.
  • the uplink channel of the bearer channel of the data packet is processed, and the feedback information of the RRC message is sent to the second base station.
  • the transceiver is further configured to receive, by the base station, configuration information of a bearer channel for sending an RRC message and/or an RRC message processing data packet, where the configuration information of the bearer channel includes: a base station that sends the configuration information And/or other base station, configuration information of a bearer channel for transmitting an RRC message and/or an RRC message processing data packet.
  • the configuration information of the bearer channel includes one or a combination of the following information: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel ID, logical channel configuration, MAC entity unit information, physical layer entity unit information, channel information of the physical layer.
  • the transceiver is further configured to: receive indication information corresponding to the configuration information of the bearer channel, where the indication information is used to indicate a generated base station or a base station cell of the RRC message sent by the bearer channel, or used to indicate the The type of the base station or the base station cell and the RRC message of the RRC message sent by the bearer channel, or the type of the RRC message sent by the bearer channel.
  • the indication information includes one of the following: SRB identification information corresponding to the bearer channel; identification information of the bearer channel; identification information of the base station or the base station cell; and logical channel identification information.
  • the transceiver is further configured to: send the feedback information of the RRC message to generate the RRC by: a base station of the message, and/or sent to another base station other than the base station that generates the RRC message: sending the feedback message of the RRC message to a dedicated bearer used by the base station that generates the RRC message to send feedback information of the RRC message
  • the dedicated bearer channel belongs to the base station that generates the RRC message, or does not belong to the base station that generates the RRC message, or part of the base station that generates the RRC message.
  • the embodiment of the present invention further provides a base station applicable to the third solution.
  • the base station may be an MeNB or an SeNB.
  • the base station can include: a transceiver 2110 and a processor 2111, wherein each component can perform a corresponding process in the third scheme. as the picture shows:
  • the processor 2110 is configured to generate an RRC message transmission configuration request message, where the RRC message transmission configuration request message is used to request the second base station to establish a bearer channel for forwarding the RRC message or the RRC message processing data packet generated by the first base station, where a base station is the base station;
  • the transceiver 2111 is configured to send, by the processor, an RRC message transmission configuration request message to the second base station.
  • the RRC message transmission configuration request message carries one or a combination of the following information:
  • the first base station forwards the RRC message generated by the second base station or the bearer channel configuration information of the RRC message processing data packet; the first base station expects the second base station to establish, by the second base station, the RRC message generated by the first base station or the bearer of the RRC message processing data packet. Channel configuration information.
  • the desired second base station establishes, by the second base station, the bearer channel configuration information of the RRC message generated by the first base station, including: PDCP layer configuration information, RLC layer configuration information, MAC layer configuration information, and physical layer configuration information of the second base station.
  • the configuration information of the bearer channel includes: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit information, At least one parameter configuration information in the physical layer unit information.
  • the RRC message transmission configuration request message carries the indication information, where the indication information indicates that the bearer channel used for requesting the second base station to forward the RRC message or the RRC message processing data packet generated by the first base station is: A combination of an RLC entity unit, a MAC entity unit, a physical layer entity unit of the second base station, or a combination of a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a physical layer entity unit of the second base station.
  • the transceiver 2111 is further configured to receive, by the second base station, an acknowledgement message corresponding to the RRC message transmission configuration request message.
  • the acknowledgement message received by the transceiver 2111 includes bearer channel configuration information of the second station, and/or the second base station Forwarding configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station.
  • the transceiver 2111 is further configured to: after receiving the acknowledgement message corresponding to the RRC message transmission configuration request message returned by the second base station, send, to the terminal, configuration information of the bearer channel for transmitting the RRC message, the bearer channel configuration information Includes one or combination of the following:
  • the first base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the second base station;
  • the second base station sends configuration information of the bearer channel of the RRC message generated by the second base station;
  • the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station.
  • the processor 2110 is further configured to: generate an RRC message transmission configuration modification message, where the RRC message transmission configuration modification message is used to request the second base station to modify the second base station to forward the RRC message generated by the first base station or the bearer of the RRC message processing data packet.
  • the channel, and/or the configuration information of the bearer channel for notifying the first base station of the second base station is modified; the transceiver 2111 is further configured to send, by the second base station, the RRC message transmission configuration modification message generated by the processor.
  • the RRC message transmission configuration modification message carries the configuration information of the bearer channel that the first base station expects the second base station to modify, and the configuration information of the bearer channel that the first base station expects the second base station to modify includes: PDCP entity unit information, RLC entity Parameter configuration information of at least one of unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit information, and physical layer unit information.
  • the transceiver 2111 is further configured to: after sending the RRC message transmission configuration modification message to the second base station, receive an acknowledgment message corresponding to the RRC message transmission configuration modification message that is returned by the second eNB; the acknowledgment message includes: The modified second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station.
  • the transceiver 2111 is further configured to: send, by the second base station, the modified second base station, the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station to the terminal.
  • the processor 2110 is further configured to: generate an RRC message transmission configuration release message, where the RRC message transmission configuration release message is used to request the second base station to release the second base station to forward the RRC message generated by the first base station or the bearer of the RRC message processing data packet.
  • the channel, and/or is used to notify the second base station that the first base station releases the bearer channel that sends the RRC message; the transceiver 2111 is further configured to send the RRC message transmission configuration release message generated by the processor to the second base station.
  • the processor 2110 is further configured to: after the transceiver sends the RRC message transmission configuration release message to the second base station, send an RRC message transmission configuration request message to the terminal, to notify the terminal to send the release situation of the bearer channel of the RRC message.
  • the base station can include: a transceiver 2120 and a processor 2121, wherein each component can perform a corresponding process in the third scheme.
  • the picture shows:
  • the transceiver 2120 is configured to receive a configuration request message of an RRC message transmission channel sent by the first base station, where the processor 2121 is configured to establish a second base station according to the configuration request message of the RRC message transmission channel received by the transceiver. Forwarding the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station, where the second base station is the base station.
  • the information carried in the RRC message transmission configuration request message is as described above.
  • the desired second base station establishes, by the second base station, the bearer channel configuration information of the RRC message generated by the first base station, including: PDCP layer configuration information, RLC layer configuration information, MAC layer configuration information, and physical layer configuration information of the second base station.
  • the configuration information of the bearer channel includes: PDCP entity unit information, RLC entity unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit information, At least one parameter configuration information in the physical layer unit information.
  • the RRC message transmission configuration request message carries the indication information, where the indication information indicates that the bearer channel used for requesting the second base station to forward the RRC message or the RRC message processing data packet generated by the first base station is: A combination of an RLC entity unit, a MAC entity unit, a physical layer entity unit of the second base station, or a combination of a PDCP entity unit, an RLC entity unit, a MAC entity unit, and a physical layer entity unit of the second base station.
  • the processor 2121 is further configured to: after the second base station forwards the RRC message generated by the first base station or the bearer channel of the RRC message processing data packet, generate an acknowledgement message corresponding to the RRC message transmission configuration request message; the transceiver 2120 further uses The sending the acknowledgement message generated by the processor to the first base station.
  • the acknowledgement message includes the bearer channel configuration information of the second station, and/or the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station;
  • the configuration information of the bearer channel includes : at least one of PDCP physical unit information, RLC physical unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit information, physical layer unit information Parameter configuration information.
  • the processor 2121 is further configured to: after sending the acknowledgement message corresponding to the RRC message transmission configuration request message to the first base station, generate configuration information of the bearer channel for transmitting the RRC message, where the bearer channel configuration information includes one of the following Or combination:
  • the first base station forwards the RRC message generated by the second base station or the configuration information of the bearer channel of the RRC message processing data packet Interest rate
  • the second base station sends configuration information of the bearer channel of the RRC message generated by the second base station;
  • the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message processing data packet generated by the first base station;
  • the transceiver is further configured to send, to the terminal, configuration information of the bearer channel generated by the processor for transmitting the RRC message.
  • the transceiver 2120 is further configured to: receive an RRC message transmission configuration modification message sent by the first base station, where the RRC message transmission configuration modification message is used to request the second base station to modify the second base station to forward the RRC message or the RRC message generated by the first base station.
  • the bearer channel of the data packet is processed, and/or the configuration information of the bearer channel for notifying the first base station of the second base station is modified;
  • the processor 2121 is further configured to: modify, according to the RRC message transmission configuration modification message, modify the second base station to forward The RRC message generated by the first base station or the bearer channel of the RRC message processing data packet.
  • the RRC message transmission configuration modification message carries the configuration information of the bearer channel that the first base station expects the second base station to modify, and the configuration information of the bearer channel that the first base station expects the second base station to modify includes: PDCP entity unit information, RLC entity Parameter configuration information of at least one of unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, logical channel configuration information, MAC entity unit information, and physical layer unit information.
  • the processor 2121 is further configured to: after the transceiver receives the RRC message transmission configuration modification message sent by the first base station, generate an acknowledgement message corresponding to the RRC message transmission configuration modification message; the transceiver 2120 is further configured to: The base station returns an acknowledgement message generated by the processor.
  • the transceiver 2120 is further configured to: forward, by the second base station, the modified second base station, the RRC message generated by the first base station, or
  • the configuration information of the bearer channel of the RRC message processing data packet is sent to the terminal.
  • the transceiver 2120 is further configured to: receive, by the first base station, an RRC message transmission configuration release message, where the RRC message transmission configuration release message is used to request the second base station to release the second base station to forward the RRC message or the RRC message generated by the first base station.
  • the bearer channel of the data packet and/or is used to notify the second base station that the first base station releases the bearer channel that sends the RRC message;
  • the processor 2121 is further configured to: release the configuration release message according to the RRC message, and release the second base station to forward The RRC message generated by the first base station or the bearer channel of the RRC message processing data packet.
  • the transceiver 2120 is further configured to: after the second base station forwards the RRC message generated by the first base station or the bearer channel of the RRC message processing data packet, send an RRC message transmission configuration request message to the terminal, to notify the terminal to send Release of the bearer channel of the RRC message.
  • the embodiment of the present invention further provides a terminal applicable to the third scheme, and the terminal can communicate with the base station described in FIG. 21B and FIG. 21C.
  • the terminal may include: a transceiver 2130. Further, the terminal may further include a processor 2131, where: the transceiver 2130 is configured to receive configuration information of a bearer channel sent by the base station, where the bearer channel includes the following configuration. One or a combination of information:
  • the first base station forwards the configuration information of the bearer channel of the RRC message or the RRC message data packet generated by the second base station; the second base station sends the configuration information of the bearer channel of the RRC message generated by the second base station;
  • the second base station forwards the configuration information of the bearer channel of the RRC message or the RRC message data packet generated by the first base station. Further, the transceiver 2130 may further receive auxiliary information sent by the base station, where the auxiliary information includes a C-RNTI allocated by the base station to the terminal for the second base station cell.
  • the transceiver 2130 may further receive and send data from the corresponding bearer channel according to the received configuration information of the bearer channel after receiving the configuration information of the bearer channel sent by the base station; or, using a random access procedure After entering the base station, the data is received and sent from the corresponding bearer channel according to the configuration information of the pre-configured bearer channel for transmitting the RRC message.
  • the transceiver 2130 can receive the indication information sent by the base station, and according to the indication information, use the received configuration information of the bearer channel to establish a bearer channel, and receive or send data from the corresponding bearer channel.
  • the indication information may include: a combination of one or more of an RRC layer indication information, a MAC layer command, and a physical layer command of the base station.
  • the transceiver 2130 may also send indication information to the base station, and trigger the base station that receives the indication information to start sending and receiving data according to the configured configuration information of the carried bearer channel. Further, the transceiver 2130 may further receive and transmit data from the corresponding bearer channel by using the bearer channel corresponding to the received configuration information of the bearer channel according to the indication information.
  • the transceiver 2130 may further receive configuration information of the modified bearer channel for transmitting the RRC message or the RRC message data packet sent by the base station.
  • the transceiver 2130 can also receive a release message of the RRC message bearer channel sent by the base station.
  • the processor 2131 may release the corresponding bearer channel for transmitting the RRC message or the RRC message data packet according to the release message received by the transceiver.
  • the configuration information of the bearer channel may include: signaling bearer identification information, PDCP physical unit information, RLC physical unit information, channel identifier between PDCP and RLC, channel configuration information between PDCP and RLC, logical channel identifier, At least one parameter configuration information of logical channel configuration information, MAC entity unit information, and physical layer unit information.
  • the configuration information of the bearer channel may further include: at least one of network node information of a PDCP entity unit, network node information of an RLC entity unit, network node information of a MAC entity unit, and network node information of a physical layer unit. Or the RLC entity unit, the MAC entity unit, The second network node information of the same physical layer unit.
  • the embodiment of the present invention further provides a base station applicable to the fourth solution.
  • the base station can include: a transceiver 2210 and a processor 2211, wherein each component can perform a corresponding process in the fourth option.
  • the transceiver 2210 is configured to send a control plane data packet and indication information to the second base station, so that the second base station sends the control plane data packet and/or the scheduling information of the second base station according to the control information.
  • the indication information is sent before, after, or simultaneously with the control plane data packet.
  • the types of the control plane data packets are the same as those described above, and are not described in detail herein; the type and composition of the indication information may be as described above, and will not be described in detail herein.
  • the base station can include: a transceiver 2220 and a processor 2221, wherein each component can perform a corresponding process in the fourth scheme.
  • the transceiver 2220 is configured to receive a control plane data packet and indication information sent by the first base station, where the indication information is before, after, or with the control plane data packet of the control plane data packet.
  • the type of the control plane data packet is the same as that described above, and is not described in detail herein; the type and composition of the indication information may be as described above, and will not be described in detail herein.
  • the cell involved in the various embodiments of the present invention may be an existing cell, a new carrier type cell, or a newly designed cell in the future.
  • the present invention does not limit the specific type of the cell.
  • the operations performed by the base station described in the embodiments of the present invention may also be operations performed by the base station cell.
  • the attribute of the base station may also be an attribute of the base station cell, and the information of the base station may also be information of the base station cell.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that the computer Or performing a series of operational steps on other programmable devices to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing a block in a flow or a flow and/or block diagram of the flowchart Or the steps of the function specified in multiple boxes.

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Abstract

L'invention concerne un procédé et un dispositif de transmission d'un message. Le procédé comprend les étapes suivantes : un terminal reçoit un message RRC ; et le terminal envoie des informations de rétroaction sur le message RRC à une station de base qui a généré le message RRC, et/ou envoie celles-ci à des stations de base autres que la station de base qui a généré le message RRC. Après que le terminal reçoit le message RRC, le procédé comprend en outre l'étape suivante : le terminal détermine une station de base et/ou une cellule de station de base qui ont généré le message RRC. L'étape de détermination par le terminal d'une station de base et/ou d'une cellule de station de base qui ont généré le message RRC comprend : en fonction des informations contenues dans le message RRC et utilisées pour identifier la station de base et/ou la cellule de station de base qui génèrent le message RRC, le terminal détermine la station de base et/ou la cellule de station de base qui ont généré le message RRC ; et/ou le terminal détermine la station de base et/ou la cellule de station de base qui génèrent le message RRC en fonction du contenu du message RRC, les messages RRC générés par des stations de base et/ou des cellules de stations de base différentes ayant des contenus différents.
PCT/CN2013/084714 2013-08-09 2013-09-30 Procédé et dispositif de transmission d'un message Ceased WO2015018122A1 (fr)

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CN202010278477.1A CN111954314B (zh) 2013-08-09 2013-09-30 一种消息传输方法及设备
CN201380003783.2A CN105009663B (zh) 2013-08-09 2013-09-30 一种消息传输方法及设备

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