WO2016061785A1 - 无线资源控制rrc连接方法、重连接方法和装置 - Google Patents

无线资源控制rrc连接方法、重连接方法和装置 Download PDF

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Publication number
WO2016061785A1
WO2016061785A1 PCT/CN2014/089283 CN2014089283W WO2016061785A1 WO 2016061785 A1 WO2016061785 A1 WO 2016061785A1 CN 2014089283 W CN2014089283 W CN 2014089283W WO 2016061785 A1 WO2016061785 A1 WO 2016061785A1
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WO
WIPO (PCT)
Prior art keywords
message
rrc
rrc connection
anchor node
node
Prior art date
Application number
PCT/CN2014/089283
Other languages
English (en)
French (fr)
Inventor
蔺波
李亚娟
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP18197908.9A priority Critical patent/EP3490331B1/en
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020177013720A priority patent/KR101959937B1/ko
Priority to CN201910295028.5A priority patent/CN110167142B/zh
Priority to CN201480052935.2A priority patent/CN106171037B/zh
Priority to RU2017117522A priority patent/RU2665881C1/ru
Priority to JP2017522345A priority patent/JP6562571B2/ja
Priority to BR112017008331-0A priority patent/BR112017008331B1/pt
Priority to ES18197908T priority patent/ES2816426T3/es
Priority to PCT/CN2014/089283 priority patent/WO2016061785A1/zh
Priority to EP14904307.7A priority patent/EP3206454B1/en
Publication of WO2016061785A1 publication Critical patent/WO2016061785A1/zh
Priority to US15/493,608 priority patent/US11026270B2/en
Priority to US17/333,874 priority patent/US20210360712A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a radio resource control RRC connection method, a reconnection method, and an apparatus.
  • the existing wireless communication systems have been unable to meet the wireless communication needs of users. Therefore, it is urgent to increase the system capacity of the wireless communication system, and the system capacity can be increased by adding a base station.
  • the typical approach is to densely belong to many small base stations in a macro cell, thus forming more micro cells.
  • the base station provides wireless communication services for the UE.
  • the base station that provides wireless communication services for the UE is called a service node of the UE.
  • the UE when the UE moves from one cell to another, or when the UE moves from the coverage area of one base station to the coverage area of another base station, or when the UE finds that the radio link fails (RLF, Radio Link Failure)
  • RLF Radio Link Failure
  • MME Mobility Management Entity
  • SGW Serving Gateway
  • the S1 control plane connection between the serving node and the MME is required to be sent between the new serving node and the MME, and the S1 user plane between the MME and the SGW needs to be sent to update the service node and the SGW. Connection, so that each handover process will bring at least 4 messages.
  • the deployment density of the number of base stations increases, the number of handovers increases sharply, causing a sharp increase in the signaling load of the core network; meanwhile, each service node and the MME pass control.
  • the interface is connected, when the MME has When the paging message is to be sent, the MME sends a paging message to all base stations in the tracking area (TA) area corresponding to the paging message, thereby causing a sharp increase in the core network signaling load.
  • TA tracking area
  • the embodiment of the present invention provides a radio resource control (RRC) connection method, a reconnection method, and a device, which are used to solve the problem caused by a service node handover or a MME sending a paging message when a base station is densely deployed in the prior art.
  • RRC radio resource control
  • an RRC connection device is provided, the device being disposed on a service node, the device comprising:
  • a sending unit configured to broadcast a system message
  • a receiving unit configured to receive a random access message sent by the first user equipment UE according to the system message sent by the sending unit
  • the sending unit is further configured to send a random access response message to the first UE according to the random access message received by the receiving unit;
  • the receiving unit is further configured to receive an RRC connection request message that is sent by the first UE according to the random access response message sent by the sending unit;
  • a message generating unit configured to generate an RRC connection setup message according to the RRC connection request message received by the receiving unit
  • the sending unit is further configured to send an RRC connection setup message generated by the message generating unit to the first UE;
  • the receiving unit is further configured to receive an RRC connection setup complete message sent by the first UE;
  • the sending unit is further configured to send an RRC connection setup complete message received by the receiving unit to the first anchor node, so that the first anchor node and the first UE establish an RRC connection.
  • the message generating unit includes:
  • Selecting a subunit configured to receive, according to the receiving unit, at least one of the first UE RRC connection request message sent by the UE, selecting the first UE from the at least one UE;
  • a message generating subunit configured to generate an RRC connection setup message of the first UE according to the RRC connection request message of the first UE selected by the selecting subunit.
  • the sending unit is further configured to receive, by the receiving unit, an RRC connection sent by the first UE.
  • the configuration parameter of the first UE and the UE identifier of the first UE are sent to the first anchor node.
  • the sending unit is specifically configured to: send the RRC connection setup message to the first anchor node, where the RRC The connection establishment message includes configuration parameters of the first UE;
  • the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, where the first indication information is used by the first anchor node according to the
  • the first indication information identifies that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the sending unit is specifically configured to: send the RRC connection setup message to the first anchor node, where the RRC The connection establishment message includes configuration parameters of the first UE;
  • the sending unit is further configured to: send the first indication information to the first anchor node, where the first indication information is used by the first anchor node to identify the RRC connection setup message according to the first indication information.
  • the RRC message carried by the Signaling Radio Bearer (SRB) is processed by the RRC layer entity of the first anchor node.
  • SRB Signaling Radio Bearer
  • the sending unit is configured to: carry the second indication information in the RRC connection setup complete message, or carry the RRC connection setup complete message
  • the control plane signaling message carries the second indication information and is sent to the first anchor node, where the second indication information is used by the first anchor node to identify the RRC connection setup complete message according to the second indication information.
  • the RRC message carried by the SRB1 is signaled for the radio bearer.
  • the sending unit is further configured to: send the second indication information to the first anchor node, where the second indication information is used by the first
  • the anchor node identifies, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the device further includes:
  • a packet data processing unit configured to, by using a radio link control RLC layer entity, process, by the first UE, an RRC message that includes the RRC connection setup complete message into a corresponding packet data convergence protocol packet data unit (PDCP PDU, Packet
  • the RRC message includes the RRC message carried by the signaling radio bearer SRB1 or the RRC message carried by the SRB2, and the RRC connection setup complete message is the RRC carried by the SRB1.
  • the RRC message is sent to the first anchor node.
  • the RRC message is used by the first PDCP layer entity in the first anchor node to process the RRC message carried by the SRB1 and then sent to the RRC layer entity, or the RRC message is used for the first anchor.
  • the second PDCP layer entity in the node processes the RRC message carried by the SRB2 and sends the RRC message to the RRC layer entity.
  • the receiving unit is configured to receive an RRC sent by the first anchor node.
  • a packet data convergence protocol packet data unit PDCP PDU corresponding to the message the RRC message includes an RRC message carried by the signaling radio bearer SRB1 or an RRC message carried by the SRB2; the RRC message is used for the first radio link of the serving node
  • the RLC (Radio Link Control) layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the first UE by using a medium access control (MAC) layer and a physical layer, or the RRC message.
  • the second RLC layer entity used by the serving node processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • MAC medium access control
  • an RRC reconnect device where the device is disposed on a service node, and the device includes:
  • a sending unit configured to broadcast a system message
  • a receiving unit configured to receive a random access message sent by the first user equipment UE according to the system message sent by the sending unit
  • the sending unit is further configured to send a random access response message to the first UE according to the random access message received by the receiving unit;
  • the receiving unit is further configured to receive an RRC connection reestablishment request message that is sent by the first UE according to the random access response message sent by the sending unit;
  • a message generating unit configured to generate an RRC connection reestablishment message according to the RRC connection reestablishment request message received by the receiving unit;
  • the sending unit is further configured to send the RRC connection reestablishment message generated by the message generating unit to the first UE;
  • the receiving unit is further configured to receive an RRC connection reestablishment complete message sent by the first UE according to the RRC connection reestablishment message sent by the sending unit;
  • the sending unit is further configured to send the RRC connection reestablishment complete message received by the receiving unit to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • the device further includes:
  • a first acquiring unit configured to acquire, before the sending unit sends the RRC connection reestablishment message to the first UE, a first user of the first UE that has established an RRC connection with the first anchor node Device identification UEID and next hop link count (NCC, NextHopChainingCount);
  • the receiving unit is configured to receive an RRC connection reestablishment request message sent by the first UE, where the RRC connection reestablishment request message includes the first UEID;
  • the message generating unit is configured to obtain, according to the first UEID that is received by the receiving unit, the NCC obtained by the first acquiring unit, and generate an RRC connection reestablishment message that includes the NCC;
  • the sending unit is specifically configured to: use the RRC connection reestablishment message generated by the message generating unit And sending to the first UE, where the first UE derives a new key according to the NCC.
  • the first acquiring unit is specifically configured to:
  • the first anchor node After the first anchor node establishes an RRC connection for the first UE, acquiring a first user equipment identity UEID and a next hop link count of the first UE that has established an RRC connection with the first anchor node NCC; or,
  • the first UEID and the NCC of the first UE that establishes the RRC connection sent by the first anchor node are received.
  • the device further includes:
  • a signaling receiving unit configured to: after the first acquiring unit acquires the first user equipment identity UEID and the next hop link count NCC of the first UE that has established an RRC connection with the first anchor node, Receiving, after the RRC connection of the first UE leaves the first anchor node, receiving signaling sent by the first anchor node;
  • a releasing unit configured to release the NCC of the first UE according to the signaling received by the signaling receiving unit.
  • the device further includes:
  • a second acquiring unit configured to acquire, by the sending unit, the neighboring cell identifier served by the first anchor node, before sending the RRC connection reestablishment message to the first UE;
  • the sending unit is further configured to: identify, according to the source cell identifier included in the RRC connection reestablishment request message received by the receiving unit, a neighboring cell or a service that the source cell serves as the first anchor node
  • the fourth indication information is sent to the first UE, where the fourth indication information is used to indicate that the first UE uses the original key, or indicates that the first UE key is not A change occurs, or the first UE is instructed to use the key KeNB of the evolved base station eNodeB to generate a new key.
  • the sending unit is further used Before the receiving unit receives the RRC connection reestablishment complete message sent by the first UE, sending the RRC connection reestablishment message and the first indication information to the first anchor node, where the first indication information is used.
  • the first anchor node identifies, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the sending unit is further configured to: before the receiving unit receives the RRC connection reestablishment complete message sent by the first UE, connect the RRC connection And the first indication is sent to the first anchor node, where the RRC connection reestablishment message carries the first indication information, or the control plane signaling message carrying the RRC connection reestablishment carries the first indication information, where the first indication is The information is used by the first anchor node to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the sending unit is further configured to: before the receiving unit receives the RRC connection reestablishment complete message sent by the first UE, The configuration parameters of the UE are sent to the first anchor node.
  • the sending unit is configured to: carry the second indication information in the RRC connection reestablishment complete message, or carry the RRC connection reestablishment complete message
  • the control plane signaling message carries the second indication information and is sent to the first anchor node, where the second indication information is used by the first anchor node to identify the RRC connection reestablishment complete message according to the second indication information.
  • the RRC message carried by the SRB1 is signaled for the radio bearer.
  • the sending unit is further configured to send the second indication information to the first anchor node, where the second indication information is used by the first
  • the anchor node identifies, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the device further includes:
  • the RRC message sent by the RRC connection re-establishment completion message is a corresponding packet data convergence protocol packet data unit PDCP PDU, and the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, and the RRC connection reestablishment is completed.
  • the message is an RRC message carried by the SRB1; the RRC message is used by the first PDCP layer entity in the first anchor node to process the RRC message carried by the SRB1 and then sent to the RRC layer entity, or the RRC message is used by the RRC message.
  • the second PDCP layer entity in the first anchor node processes the RRC message carried by the SRB2 and sends the RRC message to the RRC layer entity.
  • the receiving unit is configured to receive a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message sent by the first anchor node, where
  • the RRC message includes an RRC message or an SRB2 RRC message carried by the SRB1, and the RRC message is used by the first radio link control RLC layer entity of the second serving node to process the RRC message carried by the SRB1 and then pass the media access control.
  • the MAC layer and the physical layer are sent to the first UE, or the RRC message is used by the second RLC layer entity of the second serving node to process the RRC message carried by the SRB2 and send it through the MAC layer and the physical layer. To the first UE.
  • an RRC connection device where the device is disposed on an anchor node, and the device includes:
  • a receiving unit configured to receive an RRC connection setup complete message sent by the serving node
  • connection establishing unit configured to establish an RRC connection between the first anchor node and the first UE according to an RRC connection setup complete message received by the receiving unit
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection setup complete message is sent to the service node.
  • the receiving unit is further configured to: before the serving node receives the RRC connection setup complete message sent by the first UE, receive the service node The configuration parameter and the UE identifier of the first UE that are sent.
  • the receiving unit is configured to receive the RRC connection setup message sent by the serving node, where The configuration parameter of the first UE is included in the RRC connection setup message;
  • the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, and the device further includes:
  • an identifying unit configured to identify, according to the first indication information, that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the receiving unit is configured to receive the RRC connection setup message sent by the serving node, where the RRC connection is established.
  • the configuration parameter of the first UE is included in the message;
  • the receiving unit is further configured to receive first indication information sent by the service node;
  • the device also includes:
  • an identifying unit configured to identify, according to the first indication information, that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the receiving unit is configured to receive a control plane signaling message that is sent by the serving node and that carries the RRC connection setup complete message, where the RRC is The connection establishment completion message carries the second indication information, or the control plane signaling message carries the second indication information; the device further includes:
  • an identifying unit configured to identify, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the receiving unit is further configured to receive the second indication information that is sent by the service node, where the device further includes:
  • an identifying unit configured to identify, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the receiving unit is configured to receive, by the radio link control RLC layer entity of the serving node, the first UE
  • the RRC message of the RRC connection setup complete message is processed by the PDCP PDU that is sent after the corresponding packet data convergence protocol packet data unit PDCP PDU, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2,
  • the RRC connection setup complete message is an RRC message carried by the SRB1; the device further includes:
  • a first packet data processing unit configured to process, by using the first PDCP layer entity, the RRC message carried by the SRB1 to the RRC layer entity;
  • a second packet data processing unit configured to send, by using the second PDCP layer entity, the RRC message carried by the SRB2 to the RRC layer entity.
  • the device further includes:
  • a sending unit configured to send, to the serving node, a packet data convergence protocol packet data unit PDCP PDU corresponding to an RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC message is used by the
  • the first radio link control RLC layer entity of the service node processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the media access control MAC layer and the physical layer, or the RRC message is used for the
  • the second RLC layer entity of the serving node processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • an RRC reconnect device where the device is disposed on an anchor node, and the device includes:
  • a receiving unit configured to receive an RRC connection reestablishment complete message sent by the second serving node
  • connection re-establishment unit configured to re-establish an RRC connection between the first anchor node and the first UE according to the RRC connection reestablishment complete message received by the receiving unit;
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and the RRC connection reestablishment complete message is sent to the Two service nodes.
  • the device further includes:
  • a first sending unit configured to send the RRC connection reestablishment message at the second serving node Before the first UE, sending, to the second serving node, a first user equipment identity UEID and a next hop link count NCC of the first UE that has established an RRC connection with the first anchor node;
  • the receiving unit is configured to receive an RRC connection reestablishment request message sent by the first UE, where the RRC connection reestablishment request message includes the first UEID;
  • the second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends the RRC connection reestablishment message to the first UE, where the second serving node obtains according to the first UEID.
  • the NCC generates an RRC connection reestablishment message including the NCC, and sends the RRC connection reestablishment message to the first UE, where the first UE deduces a new key according to the NCC.
  • the first sending unit is specifically configured to:
  • the first anchor node After the first anchor node establishes an RRC connection for the first UE, send, to the second serving node, a first user equipment identifier (UEID) of the first UE that has established an RRC connection with the first anchor node. And the next hop link counts NCC; or,
  • the first anchor node After receiving the request message sent by the second serving node, the first anchor node sends, to the second serving node, a first UEID and an NCC of the first UE that has established an RRC connection with the first anchor node. .
  • the device further includes:
  • a signaling sending unit configured to send, by the first sending unit, the first user equipment identity UEID and the next hop chain of the first UE that has established an RRC connection with the first anchor node to the second serving node After the path counts the NCC, after the RRC connection of the first UE leaves the first anchor node, signaling is sent to the second serving node, where the signaling is used by the second serving node according to the Signaling releases the NCC of the first UE.
  • the device further includes:
  • a second sending unit configured to send, by the second serving node, the RRC connection reestablishment message Sending, to the second serving node, a neighboring cell identifier served by the first anchor node before sending the first UE;
  • the RRC connection reestablishment request message includes a source cell identifier, where the second serving node identifies that the source cell is a neighboring cell served by the first anchor node, or the source cell is a current cell, and then
  • the first UE sends the fourth indication information, indicating that the first UE uses the original key, or indicates that the first UE key does not change, or indicates that the first UE uses the key of the evolved base station eNodeB.
  • the KeNB generates a new key.
  • the receiving unit is further configured to receive, before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, The RRC connection reestablishment message and the first indication information sent by the second serving node; the device further includes:
  • an identifying unit configured to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the receiving unit is further configured to receive, before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, The RRC connection reestablishment message sent by the second serving node, where the RRC connection reestablishment message carries the first indication information, or the control plane signaling message carrying the RRC connection reestablishment message carries the first indication information; Also includes:
  • an identifying unit configured to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the receiving unit is further configured to: before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, a configuration parameter of the first UE sent by the second serving node.
  • the receiving unit is specific And receiving, by the second serving node, an RRC connection reestablishment complete message, where the RRC connection reestablishment complete message carries the second indication information, or the control plane signaling message carrying the RRC connection reestablishment complete message carries the second indication information
  • the device also includes:
  • an identifying unit configured to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the receiving unit is further configured to receive second indication information that is sent by the second serving node, where the device further includes:
  • an identifying unit configured to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the receiving unit is configured to receive, by the radio link control RLC layer entity of the second serving node, the After the RRC message processing of the RRC connection reestablishment complete message is the corresponding packet data convergence protocol packet data unit PDCP PDU, the RRC message is sent to the PDCP PDU of the first anchor node, where the RRC message includes an RRC message or SRB2 carried by the SRB1.
  • the RRC message of the bearer, the RRC connection reestablishment complete message is an RRC message carried by the SRB1; the device further includes:
  • a first packet data processing unit configured to send, by using a first PDCP layer entity in the first anchor node, the RRC message carried by the SRB1 to an RRC layer entity;
  • a second packet data processing unit configured to process, by using the second PDCP layer entity in the first anchor node, the RRC message carried by the SRB2 to be sent to the RRC layer entity.
  • the device further includes:
  • a third sending unit configured to send, to the second serving node, a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2; the RRC message
  • the first radio link control RLC layer entity for the second serving node processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the media access control MAC layer and the physical layer, or
  • the RRC message is used by the second RLC layer entity of the second serving node to process the RRC message carried by the SRB2 and send it through the MAC layer and the physical layer. To the first UE.
  • a service node in a fifth aspect, includes:
  • the transmitter is configured to broadcast a system message
  • the receiver is configured to receive a random access message that is sent by the first user equipment UE according to the system message;
  • the transmitter is further configured to send a random access response message to the first UE;
  • the receiver is further configured to receive an RRC connection request message sent by the first UE;
  • the processor is configured to generate an RRC connection setup message according to the RRC connection request message received by the receiver;
  • the transmitter is further configured to send the RRC connection setup message generated by the processor to the first UE;
  • the receiver is further configured to receive an RRC connection setup complete message sent by the first UE;
  • the transmitter is further configured to send the RRC connection setup complete message to the first anchor node, so that the first anchor node and the first UE establish an RRC connection.
  • a service node in a sixth aspect, includes:
  • the transmitter is configured to broadcast a system message
  • the receiver is configured to receive a random access message that is sent by the first user equipment UE according to the system message;
  • the transmitter is further configured to send a random access response message to the first UE;
  • the receiver is further configured to receive an RRC connection reestablishment request message sent by the first UE;
  • the processor is configured to generate an RRC connection reestablishment message according to the RRC connection reestablishment request message received by the receiver;
  • the transmitter is further configured to send the RRC connection reestablishment message generated by the processor to the first UE;
  • the receiver is further configured to receive an RRC connection reestablishment complete message sent by the first UE;
  • the transmitter is further configured to send the RRC connection reestablishment complete message to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • an anchor node comprising:
  • the receiver is configured to receive an RRC connection setup complete message sent by the serving node;
  • the processor is configured to establish an RRC connection between the first anchor node and the first UE according to the RRC connection setup complete message received by the receiver;
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection setup complete message is sent to the service node.
  • an anchor node comprising:
  • the receiver is configured to receive an RRC connection reestablishment complete message sent by the second serving node;
  • the processor is configured to re-establish an RRC connection between the first anchor node and the first UE according to the RRC connection reestablishment complete message received by the receiver;
  • the RRC Connection Reestablishment Complete message is the RRC Connection Reestablishment Complete message generated by the first UE according to the RRC Connection Reestablishment message sent by the serving node, and the RRC Connection Reestablishment Complete message is sent to the serving node.
  • a ninth aspect provides an RRC connection method, where the method includes:
  • the service node broadcasts a system message
  • the serving node generates an RRC connection setup message according to the RRC connection request message, and sends the RRC connection setup message to the first UE;
  • the serving node sends the RRC Connection Setup Complete message to the first anchor node, so that the first anchor node and the first UE establish an RRC connection.
  • the serving node generates an RRC connection setup message according to the RRC connection request message, including: the serving node, according to the received RRC connection request message sent by the at least one UE that includes the first UE, from the at least one UE And selecting the first UE, and generating an RRC connection setup message of the first UE according to the RRC connection request message of the first UE.
  • the method before the serving, by the serving node, the RRC connection setup complete message sent by the first UE, the method further includes:
  • the sending, by the first UE, the configuration parameter to the first anchor node includes: connecting the RRC The establishment message is sent to the first anchor node, where the RRC connection setup message includes configuration parameters of the first UE;
  • the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, where the first indication information is used by the
  • the first anchor node identifies, according to the first indication information, that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the sending, by the first UE, the configuration parameter to the first anchor node includes: connecting the RRC The establishment message is sent to the first anchor node, where the RRC connection setup message includes configuration parameters of the first UE;
  • the method further includes: the serving node transmitting the first indication information to the first anchor node, where the first indication information is used by the first anchor node to identify the RRC connection according to the first indication information
  • the establishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the serving node sends the RRC connection setup complete message to the first anchor node, where: the service node establishes in the RRC connection
  • the completion message carries the second indication information, or carries the second indication information to the first anchor node in the control plane signaling message that carries the RRC connection setup complete message, where the second indication information is used by the
  • the first anchor node identifies, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the method further includes: the serving node sends the second indication information to the first anchor node, where the second indication information is used by the The first anchor node identifies, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the method further includes: the radio link control RLC layer entity of the serving node Transmitting, by the first UE, the RRC message including the RRC connection setup complete message into a corresponding packet data convergence protocol packet data unit PDCP PDU, and transmitting the RRC message to the first anchor node, where the RRC message includes signaling wireless
  • the RRC message carried by the SRB1 bearer or the RRC message carried by the SRB2 the RRC connection setup complete message is an RRC message carried by the SRB1; the RRC message is used for
  • the first PDCP layer entity in the first anchor node processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the RRC message is used in the second PDCP layer entity in the first anchor node.
  • the RRC message carried by the SRB2 is processed and sent to the RRC layer entity.
  • the method further includes: the serving node receiving the first anchor node sending The RRC message corresponds to a packet data convergence protocol packet data unit PDCP PDU, the RRC message includes an RRC message carried by the signaling radio bearer SRB1 or an RRC message carried by the SRB2; the RRC message is used for the first radio of the serving node
  • the link control RLC layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the media access control MAC layer and the physical layer, or the RRC message is used for the second RLC of the service node.
  • the layer entity processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • a tenth aspect provides an RRC reconnection method, where the method includes:
  • the second serving node broadcasts a system message
  • the second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends the RRC connection reestablishment message to the first UE;
  • the second serving node sends the RRC connection reestablishment complete message to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • the method before the sending the RRC connection reestablishment message to the first UE, the method further includes:
  • the second serving node acquires a first user equipment identity UEID and a next hop link count NCC of the first UE that has established an RRC connection with the first anchor node;
  • the second serving node Receiving, by the second serving node, the RRC connection reestablishment request message sent by the first UE, the second serving node receiving the RRC connection reestablishment request message sent by the first UE, in the RRC connection reestablishment request message Include the first UEID;
  • the second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends the RRC connection reestablishment message to the first UE, where the second serving node obtains according to the first UEID.
  • the NCC generates an RRC connection reestablishment message including the NCC, and sends the RRC connection reestablishment message to the first UE, where the first UE deduces a new key according to the NCC.
  • the second serving node acquires a first end of the first UE that establishes an RRC connection with the first anchor node User equipment identification UEID and next hop link count NCC, including:
  • the second serving node After the first anchor node establishes an RRC connection for the first UE, the second serving node acquires a first user equipment identifier (UEID) of the first UE that has established an RRC connection with the first anchor node, and The next hop link counts NCC; or,
  • the second serving node After sending the request message to the first anchor node, the second serving node receives the first UEID and the NCC of the first UE that is established by the first anchor node and establishes an RRC connection.
  • the second serving node acquires a first end of the first UE that establishes an RRC connection with the first anchor node After the user equipment identifies the UEID and the next hop link counts the NCC, the method further includes:
  • the second serving node After the RRC connection of the first UE leaves the first anchor node, the second serving node receives signaling sent by the first anchor node, and is used by the second serving node according to the signaling The NCC of the first UE is released.
  • the method before the sending the RRC connection reestablishment message to the first UE, the method further includes:
  • the RRC connection reestablishment request message includes a source cell identifier, and the second service node identifies And the source cell is a neighboring cell served by the first anchor node, or the source cell is a current cell, and the fourth indication information is sent to the first UE, where the fourth indication information is used to indicate the first A UE uses the original key, or indicates that the first UE key does not change, or instructs the first UE to use the key KeNB of the evolved base station eNodeB to generate a new key.
  • the method before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, the method further includes: the second serving node Transmitting the RRC connection reestablishment message and the first indication information to the first anchor node, where the first indication information is used by the first anchor node to identify the RRC connection reestablishment message according to the first indication information
  • the signaling radio bears the RRC message carried by the SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the method before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, the method further includes: the second serving node Transmitting the RRC connection reestablishment message to the first anchor node, where the RRC connection reestablishment message carries the first indication information, or the control plane signaling message carrying the RRC connection reestablishment message carries the first indication information,
  • the first indication information is used by the first anchor node to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by a signaling radio bearer SRB0, and is configured by an RRC layer of the first anchor node. The entity handles it.
  • the method before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, the method further includes: configuring parameters of the first UE Sent to the first anchor node.
  • the second serving node sends the RRC connection reestablishment complete message to the first anchor node, where: the second serving node is in the The RRC connection reestablishment completion message carries the second indication information, or the second indication information is carried in the control plane signaling message that carries the RRC connection reestablishment complete message, and is sent to the first anchor node, where the second indication information is sent.
  • the first anchor node is configured to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the method further includes: the serving node sends the second indication information to the first anchor node, where the second indication information is used by the The first anchor node identifies, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the method further includes:
  • the radio link control RLC layer entity of the second serving node processes the RRC message sent by the first UE including the RRC connection reestablishment complete message into a corresponding packet data convergence protocol packet data unit PDCP PDU, the RRC The message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC connection reestablishment complete message is an RRC message carried by the SRB1, and the RRC message is used by the first PDCP layer entity in the first anchor node to The RRC message carried by the SRB1 is processed and sent to the RRC layer entity, or the RRC message is used by the second PDCP layer entity in the first anchor node to process the RRC message carried by the SRB2 and then send the RRC message to the RRC layer. entity.
  • the method further includes:
  • the second serving node receives a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message sent by the first anchor node, where the RRC message includes an RRC message or an SRB2 RRC message carried by the SRB1;
  • the first radio link control RLC layer entity of the second serving node processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the medium access control MAC layer and the physical layer, or the RRC message is used by the RRC message.
  • the second RLC layer entity of the second serving node processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • an RRC connection method where the method includes:
  • the first anchor node receives an RRC connection setup complete message sent by the serving node;
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection is established. A message is sent to the service node.
  • the method further includes:
  • the first anchor node Before the serving node receives the RRC connection setup complete message sent by the first UE, the first anchor node receives the configuration parameter and the UE identifier of the first UE sent by the serving node.
  • the first anchor node receives configuration parameters of the first UE that are sent by the serving node, and includes: The first anchor node receives the RRC connection setup message sent by the serving node, where the RRC connection setup message includes configuration parameters of the first UE;
  • the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, where the method further includes: the first anchor node according to the first An indication information identifies the RRC connection setup message as an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the first anchor node receives configuration parameters of the first UE that are sent by the serving node, including: The first anchor node receives the RRC connection setup message sent by the serving node, where the RRC connection setup message includes configuration parameters of the first UE;
  • the method further includes: the first anchor node receives first indication information sent by the serving node, and the first anchor node identifies the RRC connection setup message as a signaling radio bearer SRB0 according to the first indication information.
  • the RRC message is carried and processed by the RRC layer entity of the first anchor node.
  • the first anchor node receives the RRC connection setup complete message sent by the serving node, including: the first anchor node receiving station a control plane signaling message that is sent by the serving node and that carries the RRC connection setup complete message, where the RRC connection setup complete message carries the second indication information, or the control plane signaling message carries the second indication information.
  • the first anchor node identifies, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by SRB1.
  • the method further includes: the first anchor node receives second indication information sent by the service node, where the first anchor node is configured according to The second indication information identifies that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the method further includes: the first anchor node receiving a radio link control RLC layer entity of the serving node, the first UE
  • the RRC message sent by the RRC connection setup complete message is sent to the PDCP PDU sent by the corresponding packet data convergence protocol packet data unit PDCP PDU, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2.
  • the RRC connection setup complete message is an RRC message carried by the SRB1; the first PDCP layer entity in the first anchor node processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the first The second PDCP layer entity in the anchor node processes the RRC message carried by the SRB2 and sends the RRC message to the RRC layer entity.
  • the method further includes: the first anchor node to the The serving node sends a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC message is used for the first wireless link of the serving node.
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC message is used for the first wireless link of the serving node.
  • the RRC message carried by the SRB2 is processed and sent to the first UE by using a MAC layer and a physical layer.
  • an RRC reconnection method where the method includes:
  • the first anchor node receives an RRC connection reestablishment complete message sent by the second serving node;
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and the RRC connection reestablishment complete message is sent to the Two service nodes.
  • the method further includes:
  • the first anchor node Before the second serving node sends the RRC connection reestablishment message to the first UE, the first anchor node sends, to the second serving node, an RRC connection with the first anchor node. Determining, by the first UE, the first user equipment identity UEID and the next hop link count NCC;
  • the second serving node Receiving, by the second serving node, the RRC connection reestablishment request message sent by the first UE, the second serving node receiving the RRC connection reestablishment request message sent by the first UE, in the RRC connection reestablishment request message Include the first UEID;
  • the second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends the RRC connection reestablishment message to the first UE, where the second serving node obtains according to the first UEID.
  • the NCC generates an RRC connection reestablishment message including the NCC, and sends the RRC connection reestablishment message to the first UE, where the first UE deduces a new key according to the NCC.
  • the first anchor node sends an RRC connection with the first anchor node to the second serving node
  • the first user equipment identifier of the first UE and the next hop link count NCC include:
  • the first anchor node After the first anchor node establishes an RRC connection for the first UE, the first anchor node sends, to the second serving node, the first UE that has established an RRC connection with the first anchor node.
  • the first anchor node After receiving the request message sent by the second serving node, the first anchor node sends, to the second serving node, a first UEID and an NCC of the first UE that has established an RRC connection with the first anchor node. .
  • the first anchor node sends an RRC connection with the first anchor node to the second serving node After the first user equipment of the first UE identifies the UEID and the next hop link count NCC, the method further includes:
  • the first anchor node After the RRC connection of the first UE leaves the first anchor node, the first anchor node The second serving node sends signaling, where the signaling is used by the second serving node to release the NCC of the first UE according to the signaling.
  • the method before the second serving node sends the RRC connection reestablishment message to the first UE, the method further includes:
  • the RRC connection reestablishment request message includes a source cell identifier, where the second serving node identifies that the source cell is a neighboring cell served by the first anchor node, or the source cell is a current cell, and then
  • the first UE sends the fourth indication information, indicating that the first UE uses the original key, or indicates that the first UE key does not change, or indicates that the first UE uses the key of the evolved base station eNodeB.
  • the KeNB generates a new key.
  • the method before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, the method further includes: the first The anchor node receives the RRC connection reestablishment message and the first indication information sent by the second serving node, and the first anchor node identifies the RRC connection reestablishment message as a signaling radio bearer SRB0 bearer according to the first indication information. RRC message and processed by the RRC layer entity of the first anchor node.
  • the method before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, the method further includes: the first The anchor node receives the RRC connection reestablishment message sent by the second serving node, where the RRC connection reestablishment message carries the first indication information, or the control plane signaling message carrying the RRC connection reestablishment message carries the first indication Information, the first indication information is used by the first anchor node to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by a signaling radio bearer SRB0, and is configured by the first anchor node.
  • the RRC layer entity performs processing.
  • the method before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, the method further includes: the first anchor The node receives the configuration parameter of the first UE sent by the second serving node.
  • the first anchor node receives an RRC connection reestablishment complete message sent by the second serving node, where the first anchor node receives the second serving node to send The RRC connection reestablishment completion message, where the RRC connection reestablishment complete message carries the second indication information, or the control plane signaling message carrying the RRC connection reestablishment complete message carries the second indication information, where the first anchor node is configured according to The second indication information identifies that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the method further includes: the first anchor node receiving second indication information sent by the second serving node, where the first anchor node is configured according to The second indication information identifies that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the method further includes:
  • the first anchor node receives the radio link control RLC layer entity of the second serving node, and processes the RRC message that is sent by the first UE, including the RRC connection reestablishment complete message, into corresponding packet data convergence protocol packet data.
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, and the RRC connection reestablishment complete message is an RRC message carried by the SRB1;
  • the first PDCP layer entity in the first anchor node processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the second PDCP layer entity in the first anchor node carries the SRB2
  • the RRC message is processed and sent to the RRC layer entity.
  • the method further includes:
  • the first anchor node sends a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message to the second serving node, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2;
  • the first radio link control RLC layer entity of the second serving node processes the RRC message carried by the SRB1 and controls the MAC layer and the object through the medium access
  • the RRC message is sent to the first UE, or the RRC message is used by the second RLC layer entity of the second serving node to process the RRC message carried by the SRB2 and then send the RRC message through the MAC layer and the physical layer to the First UE.
  • the serving node broadcasts a system message first, and receives a random access message sent by the first UE according to the system message, and then sends a random access response message to the first UE.
  • the UE establishes an RRC connection.
  • the MME and the first anchor node since an RRC connection is established between the first anchor node and the first UE, when the serving node of the UE switches, the MME and the first anchor node The connection does not change.
  • the MME has a paging message to send, the MME does not need to send a paging message to all base stations in the TA area corresponding to the paging message, which effectively reduces the core network signaling load.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an apparatus of an RRC connection apparatus according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of an apparatus of an RRC reconnecting apparatus according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus of an RRC connection apparatus according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus of an RRC reconnecting apparatus according to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic structural diagram of a service node according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic structural diagram of a service node according to Embodiment 6 of the present invention.
  • FIG. 8 is a schematic structural diagram of an anchor node according to Embodiment 7 of the present invention.
  • FIG. 9 is a schematic structural diagram of an anchor node according to Embodiment 8 of the present invention.
  • FIG. 10 is a flowchart of an RRC connection method on a serving node side according to Embodiment 9 of the present invention.
  • FIG. 11 is a flowchart of an RRC connection method on a serving node side according to Embodiment 10 of the present invention.
  • FIG. 12 is a flowchart of an RRC reconnection method on a serving node side according to Embodiment 11 of the present invention.
  • FIG. 13 is a flowchart of an RRC reconnection method on a serving node side according to Embodiment 12 of the present invention.
  • FIG. 14 is a flowchart of an RRC reconnection method on a serving node side according to Embodiment 13 of the present invention.
  • FIG. 17 is a flowchart of an RRC reconnection method on an anchor node side according to Embodiment 16 of the present invention.
  • FIG. 19 is a flowchart of an RRC reconnection method on an anchor node side according to Embodiment 18 of the present invention.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention.
  • the network architecture is composed of a Mobility Management Entity (MME) 101, a Service Gateway (SGW, Service Gateway) 102, an Anchor Node 103, a Serving Node 104, and a User Equipment (UE, User Equipment).
  • MME Mobility Management Entity
  • SGW Service Gateway
  • Anchor Node 103 an Anchor Node 103
  • Serving Node 104 a Serving Node
  • UE User Equipment
  • 105 composition wherein the anchor node 103 can be an existing base station, It may also be a newly established network element, and the serving node 104 is a base station serving the UE 105.
  • the anchor node 103 can be an existing base station, It may also be a newly established network element
  • the serving node 104 is a base station serving the UE 105.
  • the service node 104 directly establishes a connection with the MME 101, but in the present invention, the service node 104 and the MME 101 do not directly establish a connection, but establish a connection with the anchor node 103 through the service node 104.
  • the anchor node 103 establishes a connection with the MME 101, thereby enabling the service node 104 to establish a connection with the MME 101 via the anchor node 103.
  • the MME 101 and the SGW 102 of the core network respectively establish an S1-C control plane interface and an S1-U user plane interface with the anchor node 103, and the anchor node 103 and the service node 104 are connected through a signal tunnel (backhaul) to establish an interface.
  • the interface may be an enhanced X2 interface or another type of interface, and the UE 105 and the serving node 104 establish a wireless link connection.
  • the anchor node 103 and the serving node 104 jointly process the RRC message, that is, the anchor node 103 processes a part of the RRC message according to the RRC message type.
  • the remaining RRC messages are processed by the serving node 104 to effect separation of the RRC functions onto the two nodes.
  • the anchor node 103 may include an RRC protocol entity for processing an RRC message carried by the SRB1 and an RRC message carried by the SRB2, and a Packet Data Convergence Protocol (PDCP) protocol entity for processing an RRC message carried by the SRB1.
  • PDCP Packet Data Convergence Protocol
  • the protocol stack of the serving node 104 includes the RLC protocol entity corresponding to the DRB, SRB1, and SRB2 of the UE 105.
  • the RLC protocol entity of the serving node 104 includes a first RLC layer entity for processing the RRC message of the SRB1 bearer and is used to process the SRB2.
  • the second RLC layer entity of the carried RRC message, and the MAC protocol entity corresponding to the UE 105, the PHY protocol entity, and the protocol stack of the serving node 104 may further include an RRC protocol entity for processing the RRC message of the SRB0 bearer, that is, the service
  • the node 104 has an RRC protocol entity for generating and transmitting a common RRC message, such as an MIB, an SIB, a paging message, and MBMS control information, so that the serving node 104 has a function of processing an RRC message carried by the SRB0, and is responsible for processing the BCCH service.
  • RRC Radio Resource Control Protocol
  • cell paging message of PCCH service cell paging message of PCCH service
  • RRC connection establishment procedure of UE of optional CCCH service RRC connect part of the RRC message of the re-establishment process, for example, an RRC connection request message and an RRC connection setup message.
  • the RRC message carried by the SRB1 may be an RRC message when the connection establishment is complete, and the RRC message carried by the SRB2 may be an RRC message after the connection establishment is completed.
  • the RRC message processing procedure corresponding to the network architecture may include:
  • the first type of RRC message processing procedure that is, the UE-specific downlink DL RRC message processing procedure
  • the DL RRC message includes an RRC message carried by the SRB1 and an RRC message carried by the SRB2.
  • the RRC protocol entity of the anchor node 103 generates an RRC message carried by the SRB1 of the UE or an RRC message carried by the SRB2, and then delivers the PDCP protocol entity corresponding to the SRB1 or the SRB2, and the PDCP protocol entity of the anchor node forms a PDCP PDU.
  • the interface between the anchor node and the serving node is sent to the serving node.
  • the serving node After receiving the packet, the serving node resolves the PDCP PDU and then processes it on the serving node by the RLC protocol entity corresponding to SRB1 or SRB2. After processing the RLC protocol entity of the serving node, And then processed by the MAC layer and the PHY layer of the serving node, and sent to the UE.
  • the second type of RRC message processing procedure that is, the UE-specific uplink UL RRC message processing procedure
  • the UL RRC message includes an RRC message carried by the SRB1 and an RRC message carried by the SRB2.
  • the serving node is handed over to the RLC protocol entity corresponding to the SRB1 or the SRB2, and the RLC protocol entity of the serving node forms a PDCP PDU, and the service node and the anchor are formed.
  • the interface between the nodes is sent to the anchor node.
  • the PDCP PDU After receiving the anchor node, the PDCP PDU is parsed and then processed by the PDCP protocol entity corresponding to SRB1 or SRB2 on the anchor node.
  • the PDCP protocol entity processes the RRC message and sends it to the RRC layer. entity.
  • the third type of RRC message processing procedure that is, the public RRC message processing procedure of the UE, the public RRC message includes an RRC message carried by the SRB0.
  • RRC messages for example, system broadcast messages of BCCH services, cell common DL RRC messages (paging, broadcast) of PCCH services, connection establishment of CCCH services, and RRC messages carried by SRB0 in the process of connection reestablishment, SRB0 bearers
  • the RRC message is processed by the service node.
  • the anchor node 103 In the network architecture shown in FIG. 1, not only the service node 104 but also the anchor node 103 is included.
  • the anchor node 103 and the serving node 104 jointly process the RRC message of the UE 105. Since the MME 101 does not establish an S1 interface connection with the serving node 104, when the serving node of the UE 105 switches, the RRC connection of the UE is maintained at the anchor node 103, and the MME 101 and The S1 connection between the anchor nodes 103 does not change, so the handover procedure does not bring the corresponding handover signaling.
  • the MME 101 when the MME 101 has a paging message to be sent, the MME 101 only needs to send to all base stations or anchor nodes 103 in the TA area corresponding to the MME 101 that have an S1 interface connection, since the MME 101 does not establish an S1 interface connection with the service node 104. Therefore, there is no need to send a paging message to the service node 104, and accordingly, the signaling is not increased due to the dense deployment of the service node 104, thereby effectively reducing the core network signaling load.
  • FIG. 2 is a schematic structural diagram of an apparatus of an RRC connection apparatus according to Embodiment 1 of the present invention.
  • the apparatus is disposed on a service node, and the apparatus includes:
  • a sending unit 201 configured to broadcast a system message
  • the receiving unit 202 is configured to receive a random access message sent by the first user equipment UE according to the system message sent by the sending unit;
  • the sending unit 201 is further configured to send a random access response message to the first UE according to the random access message received by the receiving unit 202;
  • the receiving unit 202 is further configured to receive an RRC connection request message that is sent by the first UE according to the random access response message sent by the sending unit 201;
  • the message generating unit 203 is configured to generate an RRC connection setup message according to the RRC connection request message received by the receiving unit 202.
  • the sending unit 201 is further configured to send the RRC connection setup message generated by the message generating unit 203 to the first UE;
  • the receiving unit 202 is further configured to receive an RRC connection setup complete message sent by the first UE.
  • the sending unit 201 is further configured to send an RRC connection setup complete message received by the receiving unit 202 to the first anchor node, so that the first anchor node and the first UE establish an RRC connection.
  • the message generating unit 203 includes:
  • a selecting a subunit configured to select the first UE from the at least one UE according to an RRC connection request message sent by the at least one UE that is received by the receiving unit
  • a message generating subunit configured to generate an RRC connection setup message of the first UE according to the RRC connection request message of the first UE selected by the selecting subunit.
  • the sending unit 201 is further configured to: before the receiving unit 202 receives the RRC connection setup complete message sent by the first UE, configure the configuration parameter of the first UE and the UE of the first UE An identifier is sent to the first anchor node.
  • the sending unit 201 is specifically configured to: send the RRC connection setup message to the first anchor node, where the RRC connection setup message includes configuration parameters of the first UE;
  • the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, where the first indication information is used by the first anchor node according to the
  • the first indication information identifies that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the sending unit 201 is specifically configured to: send the RRC connection setup message to the first anchor node, where the RRC connection setup message includes configuration parameters of the first UE;
  • the sending unit 201 is further configured to: send the first indication information to the first anchor node, where the first indication information is used by the first anchor node to identify the RRC connection establishment according to the first indication information.
  • the message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the sending unit 201 is configured to: carry the second indication information in the RRC connection setup complete message, or carry the second indication information in the control plane signaling message that carries the RRC connection setup complete message
  • the second indication information is used by the first anchor node to identify, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the sending unit 201 is further configured to: send the second indication information to the first anchor node, where the second indication information is used by the first anchor node to identify the second indication information according to the second indication information.
  • the RRC connection setup complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the device further comprises:
  • the packet data processing unit 204 is configured to process, by using a radio link, the RLC layer entity, to process, by using the RRC connection setup complete message, the RRC message sent by the first UE to be a corresponding packet data convergence protocol packet data unit PDCP PDU, and then send the RRC message.
  • the RRC message includes an RRC message carried by the signaling radio bearer SRB1 or an RRC message carried by the SRB2, and the RRC connection setup complete message is an RRC message carried by the SRB1;
  • the first PDCP layer entity in the first anchor node processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the RRC message is used in the second PDCP layer entity in the first anchor node.
  • the RRC message carried by the SRB2 is processed and sent to the RRC layer entity.
  • the receiving unit 202 is configured to receive a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message sent by the first anchor node, where the RRC message includes an RRC message carried by the signaling radio bearer SRB1 or The RRC message carried by the SRB2; the RRC message is used by the first radio link control RLC layer entity of the serving node to process the RRC message carried by the SRB1, and then send the message to the MAC layer and the physical layer through the media access control MAC layer and the physical layer.
  • the first UE, or the RRC message is used by the second RLC layer entity of the serving node to process the RRC message carried by the SRB2, and then send the RRC message to the first UE through the MAC layer and the physical layer.
  • FIG. 3 is a schematic structural diagram of an apparatus of an RRC reconnecting apparatus according to Embodiment 2 of the present invention, where the apparatus is disposed on a service node, and the apparatus includes:
  • a sending unit 301 configured to broadcast a system message
  • the receiving unit 302 is configured to receive a random access message that is sent by the first user equipment UE according to the system message sent by the sending unit 301.
  • the sending unit 301 is further configured to send a random access response message to the first UE according to the random access message received by the receiving unit 302.
  • the receiving unit 302 is further configured to receive an RRC connection reestablishment request message that is sent by the first UE according to the random access response message sent by the sending unit 301.
  • the message generating unit 303 is configured to generate an RRC connection reestablishment message according to the RRC connection reestablishment request message received by the receiving unit 302.
  • the sending unit 301 is further configured to send the RRC connection reestablishment message generated by the message generating unit 303 to the first UE;
  • the receiving unit 302 is further configured to receive an RRC connection reestablishment complete message sent by the first UE according to the RRC connection reestablishment message sent by the sending unit 301;
  • the sending unit 301 is further configured to send the RRC connection reestablishment complete message received by the receiving unit 302 to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • the device further comprises:
  • the first obtaining unit 304 is configured to acquire, before the sending unit 301 sends the RRC connection reestablishment message to the first UE, the first UE that has established an RRC connection with the first anchor node. a user equipment identity UEID and a next hop link count NCC;
  • the receiving unit 302 is specifically configured to receive an RRC connection reestablishment request message sent by the first UE, where the RRC connection reestablishment request message includes the first UEID;
  • the message generating unit 303 is configured to obtain, according to the first UEID that is received by the receiving unit 302, the NCC acquired by the first acquiring unit 304, and generate an RRC connection reestablishment message that includes the NCC.
  • the sending unit 301 is specifically configured to send the RRC connection reestablishment message generated by the message generating unit 303 to the first UE, where the first UE derives a new key according to the NCC.
  • the first obtaining unit 304 is specifically configured to:
  • the first anchor node After the first anchor node establishes an RRC connection for the first UE, acquiring a first user equipment identity UEID and a next hop link count of the first UE that has established an RRC connection with the first anchor node NCC; or,
  • the first UEID and the NCC of the first UE that establishes the RRC connection sent by the first anchor node are received.
  • the device further comprises:
  • the signaling receiving unit 305 is configured to: after the first acquiring unit 304 acquires the first user equipment identity UEID and the next hop link count NCC of the first UE that has established an RRC connection with the first anchor node, Receiving signaling sent by the first anchor node after the RRC connection of the first UE leaves the first anchor node;
  • the releasing unit 306 is configured to release the NCC of the first UE according to the signaling received by the signaling receiving unit 305.
  • the device further comprises:
  • a second obtaining unit 307 configured to acquire, by the sending unit 301, the neighboring cell identifier served by the first anchor node, before sending the RRC connection reestablishment message to the first UE;
  • the sending unit 301 is further configured to: identify, according to the source cell identifier included in the RRC connection reestablishment request message received by the receiving unit 302, the neighboring cell that the source cell serves as the first anchor node. Or when the source cell is the current cell, sending, to the first UE, fourth indication information, where the fourth indication information is used to indicate that the first UE uses the original key, or indicates that the first UE is dense. The key does not change, or the first UE is instructed to use the key KeNB of the evolved base station eNodeB to generate a new key.
  • the sending unit 301 is further configured to: before the receiving unit 302 receives the RRC connection reestablishment complete message sent by the first UE, send the RRC connection reestablishment message and the first indication information to the An anchor node, the first indication information is used by the first anchor node to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by a signaling radio bearer SRB0, and by the first anchor The RRC layer entity of the node performs processing.
  • the sending unit 301 is further configured to send the RRC connection reestablishment message to the first anchor node before the receiving unit 302 receives the RRC connection reestablishment complete message sent by the first UE, where
  • the RRC connection reestablishment message carries the first indication information, or carries the RRC
  • the control plane signaling message of the connection reestablishment carries the first indication information, where the first indication information is used by the first anchor node to identify the RRC connection reestablishment message as the signaling radio bearer SRB0 according to the first indication information.
  • the RRC message is carried and processed by the RRC layer entity of the first anchor node.
  • the sending unit 301 is further configured to send the configuration parameter of the first UE to the first anchor node before the receiving unit 302 receives the RRC connection reestablishment complete message sent by the first UE. .
  • the sending unit 301 is configured to: carry the second indication information in the RRC connection reestablishment complete message, or carry the second indication information in the control plane signaling message that carries the RRC connection reestablishment complete message
  • the second indication information is used by the first anchor node to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the sending unit 301 is further configured to send the second indication information to the first anchor node, where the second indication information is used by the first anchor node to identify the second indication information according to the second indication information.
  • the RRC Connection Reestablishment Complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the device further comprises:
  • a packet data processing unit 308 configured to, by using a radio link control RLC layer entity, process, by the first UE, an RRC message that includes the RRC connection reestablishment complete message into a corresponding packet data convergence protocol packet data unit PDCP PDU, where
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC connection reestablishment complete message is an RRC message carried by the SRB1; the RRC message is used by the first PDCP layer entity in the first anchor node.
  • the RRC message carried by the SRB1 is processed and sent to the RRC layer entity, or the RRC message is used by the second PDCP layer entity in the first anchor node to process the RRC message carried by the SRB2 and then send the RRC message to the RRC layer entity.
  • the receiving unit 302 is configured to receive a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message sent by the first anchor node, where the RRC message includes an RRC message or an SRB2 RRC message carried by the SRB1; Said RRC message for said second serving node
  • the first radio link control RLC layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the media access control MAC layer and the physical layer, or the RRC message is used for the second service.
  • the second RLC layer entity of the node processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • FIG. 4 is a schematic structural diagram of an apparatus of an RRC connection apparatus according to Embodiment 3 of the present invention, where the apparatus is disposed on an anchor node, and the apparatus includes:
  • the receiving unit 401 is configured to receive an RRC connection setup complete message sent by the serving node;
  • connection establishing unit 402 configured to establish an RRC connection between the first anchor node and the first UE according to the RRC connection setup complete message received by the receiving unit 401;
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection setup complete message is sent to the service node.
  • the receiving unit 401 is further configured to: before the serving node receives the RRC connection setup complete message sent by the first UE, receive configuration parameters and a UE identifier of the first UE that are sent by the serving node. .
  • the receiving unit 401 is configured to receive the RRC connection setup message sent by the serving node, where the RRC connection setup message includes configuration parameters of the first UE.
  • the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, and the device further includes:
  • the identifying unit 403 is configured to identify, according to the first indication information, that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the receiving unit 401 is configured to receive the RRC connection setup message sent by the serving node, where the RRC connection setup message includes configuration parameters of the first UE.
  • the receiving unit 401 is further configured to receive first indication information sent by the serving node;
  • the device also includes:
  • the identifying unit 403 is configured to identify, according to the first indication information, that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by the RRC layer entity of the first anchor node.
  • the receiving unit 401 is configured to receive a control plane signaling message that is sent by the serving node and that carries the RRC connection setup complete message, where the RRC connection setup complete message carries the second indication information, or The control plane signaling message carries the second indication information; the device further includes:
  • the identifying unit 403 is configured to identify, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the receiving unit 401 is further configured to receive the second indication information that is sent by the service node; the device further includes:
  • the identifying unit 403 is configured to identify, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the receiving unit 401 is configured to receive, by the radio link control RLC layer entity of the serving node, the RRC message that is sent by the first UE, including the RRC connection setup complete message, into corresponding packet data.
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB1, and the RRC connection setup complete message is an RRC message carried by the SRB1; include:
  • the first packet data processing unit 404 is configured to process, by using the first PDCP layer entity, the RRC message carried by the SRB1 to the RRC layer entity;
  • the second packet data processing unit 405 is configured to process, by using the second PDCP layer entity, the RRC message carried by the SRB2 to the RRC layer entity.
  • the device further comprises:
  • the sending unit 406 is configured to send, to the serving node, a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC message is used by the RRC message.
  • First radio link control RLC of the serving node The layer entity sends the RRC message carried by the SRB1 to the first UE through the media access control MAC layer and the physical layer, or the RRC message is used by the second RLC layer entity of the serving node.
  • the RRC message carried by the SRB2 is processed and sent to the first UE through the MAC layer and the physical layer.
  • FIG. 5 is a schematic structural diagram of an apparatus of an RRC reconnecting apparatus according to Embodiment 4 of the present invention, where the apparatus is disposed on an anchor node, and the apparatus includes:
  • the receiving unit 501 is configured to receive an RRC connection reestablishment complete message sent by the second serving node.
  • connection re-establishment unit 502 configured to re-establish an RRC connection between the first anchor node and the first UE according to the RRC connection reestablishment complete message received by the receiving unit 501;
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and the RRC connection reestablishment complete message is sent to the Two service nodes.
  • the device further comprises:
  • the first sending unit 503 is configured to send, to the second serving node, an RRC connection with the first anchor node before the second serving node sends the RRC connection reestablishment message to the first UE.
  • the receiving unit 501 is specifically configured to receive an RRC connection reestablishment request message sent by the first UE, where the RRC connection reestablishment request message includes the first UEID;
  • the second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends the RRC connection reestablishment message to the first UE, where the second serving node obtains according to the first UEID.
  • the NCC generates an RRC connection reestablishment message including the NCC, and sends the RRC connection reestablishment message to the first UE, where the first UE deduces a new key according to the NCC.
  • the first sending unit 503 is specifically configured to:
  • the first anchor node After the first anchor node establishes an RRC connection for the first UE, send, to the second serving node, a first user equipment identifier (UEID) of the first UE that has established an RRC connection with the first anchor node. And the next hop link counts NCC; or,
  • the first anchor node After receiving the request message sent by the second serving node, the first anchor node sends, to the second serving node, a first UEID and an NCC of the first UE that has established an RRC connection with the first anchor node. .
  • the device further comprises:
  • the signaling sending unit 504 is configured to send, by the first sending unit 503, the first user equipment identity UEID of the first UE that has established an RRC connection with the first anchor node, and the next After the hop link counts the NCC, after the RRC connection of the first UE leaves the first anchor node, sending signaling to the second serving node, where the signaling is used by the second serving node according to the The signaling releases the NCC of the first UE.
  • the device further comprises:
  • a second sending unit 505 configured to send, to the second serving node, the neighboring cell served by the first anchor node, before the second serving node sends the RRC connection reestablishment message to the first UE Identification
  • the RRC connection reestablishment request message includes a source cell identifier, where the second serving node identifies that the source cell is a neighboring cell served by the first anchor node, or the source cell is a current cell, and then
  • the first UE sends the fourth indication information, indicating that the first UE uses the original key, or indicates that the first UE key does not change, or indicates that the first UE uses the key of the evolved base station eNodeB.
  • the KeNB generates a new key.
  • the receiving unit 501 is further configured to: before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, receive the RRC connection reestablishment message sent by the second serving node, and First indication information; the device further includes:
  • the identifying unit 506 is configured to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the receiving unit 501 is further configured to: before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, receive the RRC sent by the second serving node a connection reestablishment message, where the RRC connection reestablishment message carries the first indication information, or the control plane signaling message carrying the RRC connection reestablishment message carries the first indication information; the device further includes:
  • the identifying unit 506 is configured to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the receiving unit 501 is further configured to: before the second serving node receives the RRC connection reestablishment complete message sent by the first UE, receive the configuration of the first UE sent by the second serving node parameter.
  • the receiving unit 501 is configured to receive an RRC connection reestablishment complete message sent by the second serving node, where the RRC connection reestablishment complete message carries the second indication information, or controls the RRC connection reestablishment complete message.
  • the second signaling information carries the second indication information; the device further includes:
  • the identifying unit 506 is configured to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the receiving unit 501 is further configured to receive second indication information that is sent by the second serving node, where the apparatus further includes:
  • the identifying unit 506 is configured to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the signaling radio bearer SRB1.
  • the receiving unit 501 is configured to receive, by the radio link control RLC layer entity of the second serving node, the RRC message that is sent by the first UE and includes the RRC connection reestablishment complete message as a corresponding
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, and the RRC connection reestablishment complete message is The RRC message carried by the SRB1; the device further includes:
  • the first packet data processing unit 507 is configured to process, by using the first PDCP layer entity in the first anchor node, the RRC message carried by the SRB1 to the RRC layer entity;
  • the second packet data processing unit 508 is configured to process, by using the second PDCP layer entity in the first anchor node, the RRC message carried by the SRB2 to the RRC layer entity.
  • the device further comprises:
  • the third sending unit 509 is configured to send, to the second serving node, a packet data convergence protocol packet data unit PDCP PDU corresponding to the RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2; the RRC Transmitting, by the first radio link control RLC layer entity of the second serving node, the RRC message carried by the SRB1 to the first UE by using a medium access control MAC layer and a physical layer, or The RRC message is used by the second RLC layer entity of the second serving node to process the RRC message carried by the SRB2 and then send the RRC message to the first UE through the MAC layer and the physical layer.
  • FIG. 6 is a schematic structural diagram of a service node according to Embodiment 5 of the present invention, where the service node includes:
  • the processor 603 The processor 603;
  • the transmitter 601 is configured to broadcast a system message
  • the receiver 602 is configured to receive a random access message that is sent by the first user equipment UE according to the system message.
  • the transmitter 601 is further configured to send a random access response message to the first UE.
  • the receiver 602 is further configured to receive an RRC connection request message sent by the first UE.
  • the processor 603 is configured to generate an RRC connection setup message according to the RRC connection request message received by the receiver 602.
  • the transmitter 601 is further configured to send the RRC connection setup message generated by the processor 603 to the first UE;
  • the receiver 602 is further configured to receive an RRC connection setup complete message sent by the first UE.
  • the transmitter 601 is further configured to send the RRC connection setup complete message to the first anchor node, so that the first anchor node and the first UE establish an RRC connection.
  • FIG. 7 is a schematic structural diagram of a service node according to Embodiment 6 of the present invention, where the service node includes:
  • the transmitter 701 is configured to broadcast a system message
  • the receiver 702 is configured to receive a random access message that is sent by the first user equipment UE according to the system message.
  • the transmitter 701 is further configured to send a random access response message to the first UE.
  • the receiver 702 is further configured to receive an RRC connection reestablishment request message sent by the first UE;
  • the processor 703 is configured to generate an RRC connection reestablishment message according to the RRC connection reestablishment request message received by the receiver 702.
  • the transmitter 701 is further configured to send the RRC connection reestablishment message generated by the processor 703 to the first UE;
  • the receiver 702 is further configured to receive an RRC connection reestablishment complete message sent by the first UE;
  • the transmitter 701 is further configured to send the RRC connection reestablishment complete message to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • FIG. 8 is a schematic structural diagram of an anchor node according to Embodiment 7 of the present invention, where the anchor node includes:
  • the receiver 801 is configured to receive an RRC connection setup complete message sent by the serving node.
  • the processor 802 is configured to establish an RRC connection between the anchor node and the first UE according to the RRC connection setup complete message received by the receiver 801.
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection setup complete message is sent to the service node.
  • FIG. 9 is a schematic structural diagram of an anchor node according to Embodiment 8 of the present invention, where the anchor node includes:
  • the processor 902 The processor 902;
  • the receiver 901 is configured to receive an RRC connection reestablishment complete message sent by the second serving node.
  • the processor 902 is configured to re-establish an RRC connection between the anchor node and the first UE according to the RRC connection reestablishment complete message received by the receiver 901;
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and the RRC connection reestablishment complete message is sent to the Two service nodes.
  • FIG. 10 is a flowchart of an RRC connection method on a serving node side according to Embodiment 9 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1.
  • the execution entity of the method is a service node. As shown in FIG. 10, the method specifically includes:
  • step 1001 the serving node broadcasts a system message.
  • the system message is specifically a system message of the RRC layer; the serving node may broadcast a system message to all UEs in its coverage area that establish a wireless connection with the UE, or may select, according to a predetermined policy, the UE that establishes a wireless connection with the foregoing.
  • a plurality of UEs broadcast a system message to the selected plurality of UEs.
  • Step 1002 The serving node receives a random access message sent by the first UE according to the system message.
  • the system message may carry an access parameter
  • the first UE may send a random access message to the serving node according to the access parameter carried in the received system message.
  • Step 1003 Send a random access response message to the first UE.
  • the serving node may send a random access response message to the first UE after receiving the random access message sent by the first UE.
  • the random access response message may include a Cell Radio Network Temmary Identity (CRNTI) allocated for the first UE.
  • CNTI Cell Radio Network Temmary Identity
  • Step 1004 The serving node receives an RRC connection request message sent by the first UE.
  • the RRC connection request message is an RRC message carried by the SRB0.
  • the serving node has an RRC message processing function carried by the SRB0. After receiving the RRC connection request message, the serving node directly submits the RRC layer entity to the RRC layer entity for processing.
  • Step 1005 The serving node generates an RRC connection setup message according to the RRC connection request message, and sends an RRC connection setup message to the first UE.
  • the serving node generates an RRC connection setup message according to the RRC connection request message, which may include: the serving node, according to the received RRC connection request message sent by the at least one UE that includes the first UE, from the at least The first UE is selected from one UE, and the RRC connection setup message of the first UE is generated according to the RRC connection request message of the first UE.
  • the method may further include: sending the configuration parameter of the first UE and the UE identifier of the first UE to the first anchor node, where the first anchor node learns configuration parameters of the first UE .
  • the first anchor node may further identify the first UE as a newly accessed UE according to the configuration parameter of the first UE, and create a UE context for the first UE.
  • the UE context may specifically include radio bearer configuration information.
  • the foregoing UE identifier may specifically be a cell radio network temporary identifier CRNTI allocated by the serving node for the UE, and the serving node may send the CRNTI to the UE by using a random access response message.
  • the serving node may send the RRC connection setup message to the first anchor node, where the RRC connection setup message carries the configuration parameter of the first UE, so that the first anchor node can obtain the configuration parameter of the first UE.
  • the serving node may not send the RRC connection setup message to the first anchor node, and send the configuration parameter of the first UE to the first anchor node by using a special message; or, the configuration parameter of the first UE is not sent to the first
  • An anchor node performs transmission of configuration parameters when it is determined that the first anchor node needs configuration parameters of the first UE. For example, when the first anchor node needs to generate an RRC message for the first UE or needs to acquire the configuration of the L1/L2 of the first UE.
  • the RRC connection setup message may carry the first indication information, or the control plane signaling message carrying the RRC connection setup message carries the first indication information, where the first indication information
  • the first anchor node is configured to identify, according to the first indication information, that the RRC connection setup message is an RRC message carried by the signaling radio bearer SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the configuration parameters of the first UE may include MAC layer configuration parameters and physical layer configuration parameters, for example, SRB-ToAddModList (OK?) parameters, mac-MainConfig (OK) parameters, PhysicalConfigDedicated (OK) parameters, RLF-TimersAndConstants-r9 (OK ) Parameters, MeasSubframePatternPCell-r10 (OK) parameters, NeighCellsCRS-Info-r11 (OK) parameters. Since the serving node has an RLC layer, a MAC layer, and a physical layer, MAC layer configuration and physical layer configuration for the UE can be implemented.
  • the configuration parameters of the first UE may further include a srb-Identity parameter, an rlc-Config parameter, and a logicalChannelConfig parameter.
  • the first indication information may be sent to the first anchor node together with the RRC connection setup message, or the first indication information and the RRC connection setup message may be separately sent, so the following steps may also be included, and the service node will
  • the first indication information is sent to the first anchor node, where the first indication information is used by the first anchor node to identify, according to the first indication information, that the RRC connection setup message is an RRC message carried by the SRB0, and is configured by the RRC layer entity of the first anchor node. Process it.
  • the first indication information may be an explicit signaling indication or a specific message name, such as SRB0RRCTransfer, InitialRRCTransfer.
  • Step 1006 The serving node receives an RRC connection setup complete message sent by the first UE.
  • the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the serving node After receiving the RRC connection setup complete message sent by the first UE, the serving node is forwarded by the first RLC layer entity of the serving node, and the RRC layer entity of the service node does not do. deal with.
  • the RRC connection setup complete message may include the CRNTI, where the first anchor node determines, according to the CRNTI, whether the first UE has a radio link failure RLF.
  • Step 1007 The serving node sends an RRC connection setup complete message to the first anchor node, so that the first anchor node establishes an RRC connection with the first UE.
  • the serving node sends the RRC connection setup complete message to the first anchor node, and may include: the serving node carries the second indication information in the RRC connection setup complete message, or completes the establishment of the RRC connection
  • the control plane signaling message of the message carries the second indication information and is sent to the first anchor node, where the second indication information is used by the first anchor node to identify the RRC connection setup complete message according to the second indication information.
  • RRC message carried by SRB1.
  • the second indication information may specifically be an explicit signaling indication or a preset message name.
  • the service node may further send the foregoing second indication information to the first anchor node, where the second indication information is used by the first anchor node to identify the RRC connection setup complete message according to the second indication information.
  • the signaling radio bears the RRC message carried by SRB1.
  • the method may further include: the RLC layer entity of the serving node processes the RRC message that is sent by the first UE, including the RRC connection setup complete message, into a corresponding PDCP PDU, and then sends the RRC message to the first anchor.
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC connection setup complete message is an RRC message carried by the SRB1, and the RRC message is used for the first PDCP in the first anchor node.
  • the layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the RRC message is used by the second PDCP layer entity in the first anchor node to process the RRC message carried by the SRB2 and send the RRC message. To the RRC layer entity.
  • the method may further include: the serving node receives a PDCP PDU corresponding to the RRC message sent by the first anchor node, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2; the RRC message is used for
  • the first RLC layer entity of the serving node processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the MAC layer and the physical layer, or the RRC message is used for the second RLC of the serving node.
  • the layer entity processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • FIG. 11 is a flowchart of an RRC connection method on a serving node side according to Embodiment 10 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1.
  • the execution entity of the method is a serving node.
  • the indication information indicating the SRB type is also sent, as shown in FIG.
  • the method specifically includes:
  • step 1101 the serving node broadcasts a system message.
  • the system message is specifically a system message of the RRC layer; the serving node may broadcast a system message to all UEs in its coverage area that establish a wireless connection with the UE, or may select, according to a predetermined policy, the UE that establishes a wireless connection with the foregoing.
  • a plurality of UEs broadcast a system message to the selected plurality of UEs.
  • Step 1102 The serving node receives a random access message sent by the first UE according to the system message.
  • the system message may carry an access parameter
  • the first UE may send a random access message to the serving node according to the access parameter carried in the received system message.
  • Step 1103 Send a random access response message to the first UE, where the random access response message includes a CRNTI allocated for the first UE.
  • Step 1104 The serving node receives an RRC connection request message sent by the first UE.
  • the RRC connection request message is an RRC message carried by the SRB0.
  • the serving node has an RRC message processing function carried by the SRB0. After receiving the RRC connection request message, the serving node submits the RRC layer entity to the RRC layer entity for processing.
  • Step 1105 The serving node generates an RRC connection setup message according to the RRC connection request message, and sends an RRC connection setup message to the first UE and the first anchor node, where the RRC connection setup message includes configuration parameters of the CRNTI and the first UE.
  • the RRC connection setup message includes the CRNTI, where the first anchor node determines, according to the CRNTI, whether the first UE has a radio link failure RLF.
  • the serving node generates an RRC connection setup message according to the RRC connection request message, including: the serving node, according to the received RRC connection request message sent by the at least one UE that includes the first UE, Selecting the first UE from the at least one UE, the root And generating an RRC connection setup message of the first UE according to the RRC connection request message of the first UE.
  • the RRC connection setup message includes the configuration parameter of the first UE, where the first anchor node identifies, according to the configuration parameter of the first UE, that the first UE is a newly accessed UE, The first UE creates a UE context.
  • the configuration parameters of the first UE may include a MAC layer configuration parameter and a physical layer configuration parameter, for example, an SRB-ToAddModList (OK?) parameter, a mac-MainConfig (OK) parameter, a PhysicalConfigDedicated (OK) parameter, and an RLF-TimersAndConstants-r9 (OK) parameter, MeasSubframePatternPCell-r10 (OK) parameter, NeighCellsCRS-Info-r11 (OK) parameter. Since the serving node has an RLC layer, a MAC layer, and a physical layer, MAC layer configuration and physical layer configuration for the UE can be implemented.
  • the configuration parameters of the first UE may further include a srb-Identity parameter, an rlc-Config parameter, and a logicalChannelConfig parameter.
  • the RRC connection request message is processed by the serving node, and an RRC connection setup message is generated.
  • the RRC connection setup message is generated by the anchor node, and the delay can be effectively reduced.
  • Step 1106 The serving node sends the first indication information to the first anchor node, where the first anchor node identifies, according to the first indication information, that the RRC connection setup message is an RRC message carried by the SRB0, and is configured by the RRC layer entity of the first anchor node. Process it.
  • the first indication information may be sent to the first anchor node together with the RRC connection setup message, or the first indication information and the RRC connection setup message may be separately sent, where the first indication information may be It is an explicit signaling indication or a preset message name, such as SRB0RRCTransfer, InitialRRCTransfer.
  • Step 1107 The serving node receives an RRC connection setup complete message sent by the first UE.
  • Step 1108 The serving node sends the second indication information to the first anchor node in the RRC connection setup complete message, where the second indication information is used by the first anchor node to identify the RRC connection setup complete message as the RRC of the SRB1 bearer according to the second indication information. a message such that the first anchor node establishes an RRC connection with the first UE.
  • the device may also carry the control plane signaling message that carries the RRC connection setup complete message.
  • the second indication information is sent to the first anchor node, or the second indication information is separately sent, and the second indication information may be an explicit signaling indication or a specific message name.
  • Step 1109 The RLC layer entity of the serving node processes the RRC message that is sent by the first UE, including the RRC connection setup complete message, into a corresponding PDCP PDU, and sends the RRC message to the first anchor node, where the RRC message includes the RRC message carried by the SRB1.
  • the RRC message carried by the SRB2 the RRC connection setup complete message is an RRC message carried by the SRB1
  • the RRC message is used by the first PDCP layer entity in the first anchor node to process the RRC message carried by the SRB1 to the RRC message.
  • the RRC layer entity, or the RRC message is used by the second PDCP layer entity in the first anchor node to process the RRC message carried by the SRB2 and then send the RRC message to the RRC layer entity.
  • Step 1110 The serving node receives the PDCP PDU corresponding to the RRC message sent by the first anchor node, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2; the RRC message is used for the first RLC of the serving node.
  • the layer entity sends the RRC message carried by the SRB1 to the first UE through the media access control MAC layer and the physical layer, or the RRC message is used by the second RLC layer entity of the serving node.
  • the RRC message carried by the SRB2 is processed and sent to the first UE through the MAC layer and the physical layer.
  • the indication information indicating the SRB type is sent to the RRC message sent between the serving node and the anchor node, so that the service node and the anchor node perform corresponding processing according to the SRB type.
  • the RRC function is separated into the service node and the anchor node.
  • FIG. 12 is a flowchart of an RRC reconnection method on a serving node side according to Embodiment 11 of the present invention.
  • the RRC reconnection method is based on the network architecture shown in FIG. 1.
  • the execution entity of the method is a service node. As shown in FIG. 12, the method specifically includes:
  • step 1201 the second serving node broadcasts a system message.
  • the system message is specifically a system message of the RRC layer.
  • the first UE may establish a connection with the first serving node, and then establish a connection with the second serving node, that is, perform service node switching. Or, the first UE can be in the first time and the first After the two service nodes establish a connection, establish a connection with the second service node again.
  • Step 1202 The second serving node receives a random access message sent by the first UE according to the system message.
  • Step 1203 Send a random access response message to the first UE.
  • Step 1204 The second serving node receives an RRC connection reestablishment request message sent by the first UE.
  • the RRC connection reestablishment request message may be an RRC connection reestablishment request message sent to the second serving node after the first UE generates the RLF.
  • Step 1205 The second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends an RRC connection reestablishment message to the first UE.
  • the second serving node may further send the RRC connection reestablishment message to the first anchor node, where the RRC connection reestablishment message carries the first indication information, or the control plane signaling that carries the RRC connection reestablishment message.
  • the message carries the first indication information, where the first indication information is used by the first anchor node to identify, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the SRB0, and is configured by the first anchor.
  • the RRC layer entity of the node performs processing.
  • the service node may also separately send the first indication information to the first anchor node.
  • the method may further include: transmitting the configuration parameter of the first UE to the first anchor node, where the first anchor node learns the configuration parameter of the first UE.
  • the foregoing configuration parameters include at least a MAC layer configuration and a UE physical layer configuration.
  • the first anchor node may identify the first UE as the newly accessed UE according to the configuration parameter of the first UE, and create a UE context for the first UE.
  • Step 1206 The second serving node receives an RRC connection reestablishment complete message sent by the first UE.
  • Step 1207 The second serving node sends an RRC Connection Reestablishment Complete message to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • the second serving node sends the RRC connection reestablishment complete message to the first anchor node, which may include: the second serving node carries the second indication information in the RRC connection reestablishment complete message, or carries the RRC connection reestablishment
  • the control plane signaling message of the completion message carries the second indication letter
  • the information is sent to the first anchor node, and the second indication information is used by the first anchor node to identify, according to the second indication information, that the RRC connection reestablishment complete message is an RRC message carried by the SRB1.
  • the service node may also separately send the second indication information to the first anchor node.
  • the RLC layer entity of the second serving node processes the RRC message that is sent by the first UE, including the RRC connection reestablishment complete message, into a corresponding PDCP PDU, where the RRC
  • the message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC connection reestablishment complete message is an RRC message carried by the SRB1, and the RRC message is used by the first PDCP layer entity in the first anchor node to
  • the RRC message carried by the SRB1 is processed and sent to the RRC layer entity, or the RRC message is used by the second PDCP layer entity in the first anchor node to process the RRC message carried by the SRB2 and then send the RRC message to the RRC layer. entity.
  • the second serving node may further include: a PDCP PDU corresponding to the RRC message sent by the first anchor node, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2;
  • the RRC message is used by the first RLC layer entity of the second serving node to process the RRC message carried by the SRB1 and then send the RRC message to the first UE through the MAC layer and the physical layer, or the RRC message is used for the
  • the second RLC layer entity of the second serving node processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • the RRC reconnection method provided by the embodiment of the present invention can effectively reduce the signaling load of the core network.
  • FIG. 13 is a flowchart of an RRC reconnection method on a serving node side according to Embodiment 12 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1.
  • the execution entity of the method is a serving node, and the second serving node instructs the UE to generate a key according to the auxiliary parameter according to the auxiliary parameter delivered by the anchor node, as shown in FIG.
  • the method specifically includes:
  • step 1301 the second serving node broadcasts a system message.
  • Step 1302 The second serving node receives a random access message sent by the first UE according to the system message.
  • Step 1303 Send a random access response message to the first UE.
  • Step 1304 The second serving node receives the RRC connection reestablishment request message sent by the first UE, where the RRC connection reestablishment request message includes the first UEID.
  • Step 1305 The second serving node acquires the first user equipment identifier UEID and the NCC of the first UE that has established an RRC connection with the first anchor node.
  • the first anchor node may send the UEID and the NCC of all UEs that have established an RRC connection with the first anchor node to the second serving node; or the first anchor node establishes an RRC connection with the first anchor node. Selecting certain UEs from all UEs, for example, selecting certain UEs located at the cell edge, or UEs whose serving cell measurement result is lower than a predefined threshold, and transmitting the selected UE's UEID and NCC to the second service. node.
  • the first anchor node may send the UEID and the NCC of all UEs that have established an RRC connection with the first anchor node to the second serving node.
  • the cell that the RRC reconnection is performed by the UE may be the original serving cell, and may also be the neighboring cell of the serving cell. Therefore, the first anchor node may establish all the UEs that have established the RRC connection with the first anchor node.
  • the UEID and the NCC are transmitted to the base station of the neighboring cell and the base station of the original serving cell.
  • the second serving node obtains the first user equipment identity UEID and the next hop link count NCC of the first UE that has established the RRC connection with the first anchor node, and may include the following two methods: the first mode, when the first anchor After the node establishes an RRC connection for the first UE, the second serving node acquires the first UEID and the NCC of the first UE that has established the RRC connection with the first anchor node; in the second manner, the second serving node sends the first UE node to the first anchor node. After the request message, the first UEID and the NCC of the first UE that establishes the RRC connection sent by the first anchor node are received.
  • the request message may be sent to the first anchor node when the second serving node receives the connection reestablishment request message of the first UE.
  • the method may further include: after the RRC connection of the first UE leaves the first anchor node, the second serving node receives the signaling sent by the first anchor node, where the second serving node releases the first according to the signaling.
  • the second serving node releases the first according to the signaling.
  • the leaving of the RRC connection of the first UE from the first anchor node may include multiple situations, for example, cutting Change or the first UE transitions to the idle state.
  • Step 1306 The second serving node obtains an NCC according to the first UEID, generates an RRC connection reestablishment message including an NCC, and sends the RRC connection reestablishment message to the first UE, where the first UE is deduced according to the NCC. New key.
  • Step 1307 The second serving node receives an RRC connection reestablishment complete message sent by the first UE.
  • Step 1308 Send an RRC Connection Reestablishment Complete message to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • the RRC reconnection method of the embodiment of the present invention can not only effectively reduce the signaling load of the core network, but also the second serving node can generate an RRC connection reestablishment message according to the auxiliary parameter delivered by the first anchor node.
  • the auxiliary parameter carried in the RRC connection reestablishment message instructs the first UE to derive a new key according to the auxiliary parameter.
  • FIG. 14 is a flowchart of an RRC reconnection method on a serving node side according to Embodiment 13 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1.
  • the execution entity of the method is a serving node, and the second serving node identifies whether the source cell of the first UE is the second serving node according to the auxiliary parameter sent by the first anchor node.
  • the original key does not need to generate a new key.
  • the method specifically includes:
  • step 1401 the second serving node broadcasts a system message.
  • the system message is specifically a system message of the RRC layer.
  • Step 1402 The second serving node receives a random access message sent by the first UE according to the system message.
  • Step 1403 Send a random access response message to the first UE.
  • Step 1404 The second serving node receives an RRC connection reestablishment request message sent by the first UE, where the RRC connection reestablishment request message includes a source cell identifier.
  • the RRC connection reestablishment request message may be specifically sent to the second service after the first UE generates the RLF.
  • Step 1405 The second serving node acquires a neighbor cell identifier served by the first anchor node.
  • the neighboring cell is a neighboring cell of a cell corresponding to the serving node.
  • Step 1406 the second serving node identifies the neighboring cell that the source cell serves as the first anchor node, or the source cell is the current cell, and sends fourth indication information to the first UE, indicating the first A UE uses the original key, or indicates that the first UE key does not change, or instructs the first UE to use the key KeNB of the evolved base station eNodeB to generate a new key.
  • the original key is the security key originally used by the first UE
  • the fourth indication information may specifically be a new indication, or the NCC is set to NULL to indicate the indication.
  • Step 1407 The second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and sends an RRC connection reestablishment message to the first UE.
  • Step 1406 and step 1407 may be combined into one step, and the fourth indication information is carried in the RRC connection reestablishment message and sent to the first UE.
  • Step 1408 The second serving node receives an RRC connection reestablishment complete message sent by the first UE.
  • Step 1409 The second serving node sends an RRC Connection Reestablishment Complete message to the first anchor node, so that the first anchor node and the first UE re-establish an RRC connection.
  • the RRC reconnection method provided by the embodiment of the present invention can not only effectively reduce the signaling load of the core network, but also the source of the first UE is identified by the second serving node according to the auxiliary parameter sent by the first anchor node.
  • the cell is the neighboring cell served by the first anchor node or the cell where the second serving node is located, that is, whether the second serving node and the original serving node of the first UE are all attributed to the first anchor node, when the first UE is identified
  • the source cell is the neighboring cell served by the first anchor node or the cell where the second serving node is located, that is, when the second serving node and the original serving node of the first UE are both assigned to the first anchor node
  • the original key can effectively shorten the processing time of the first UE without generating a new key.
  • FIG. 15 is a flowchart of an RRC connection method on an anchor node side according to Embodiment 14 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1, and the execution body of the method is an anchor node, as shown in the figure.
  • the method specifically includes:
  • Step 1501 The first anchor node receives an RRC connection setup complete message sent by the serving node.
  • Step 1502 Establish an RRC connection between the first anchor node and the first UE according to the RRC connection setup complete message.
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection setup complete message is sent to the service. node.
  • the serving node broadcasts the sending system message, and receives the random access message sent by the first UE according to the system message, after sending the random access response message to the first UE, receiving the sending by the first UE And sending an RRC connection setup message to the first UE according to the RRC connection request message, and after receiving the RRC connection setup complete message sent by the first UE, sending an RRC connection setup to the first anchor node. Complete the message.
  • the method may further include: before the serving node receives the RRC connection setup complete message sent by the first UE, the first anchor node receives the configuration parameter and the UE identifier of the first UE sent by the serving node. And the first anchor node is used to learn configuration parameters of the first UE.
  • the receiving, by the first anchor node, the configuration parameter of the first UE that is sent by the serving node may include: the first anchor node receiving the RRC connection setup message sent by the serving node, where the RRC The connection setup message includes the configuration parameter of the first UE, where the RRC connection setup message carries the first indication information, or the control plane signaling message that carries the RRC connection setup message carries the first indication information, where The method may further include: the first anchor node identifies, according to the first indication information, that the RRC connection setup message is an RRC message carried by the SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the foregoing first indication information may also be separately sent by the serving node to the first anchor node, and accordingly, the first anchor node further receives the first indication information sent by the serving node.
  • the receiving, by the first anchor node, the RRC connection setup complete message sent by the serving node may include: the first anchor node receiving the bearer sent by the serving node to establish the RRC connection Completing the control plane signaling message of the message, the RRC connection setup complete message carrying the second indication information, or the control plane signaling message carrying the second indication information, where the first anchor node is according to the second indication
  • the information identifies that the RRC Connection Setup Complete message is an RRC message carried by the SRB1.
  • the foregoing second indication information may also be separately sent by the serving node to the first anchor node, and accordingly, the first anchor node further receives the second indication information sent by the serving node.
  • the method may further include: the first anchor node receives, after the RLC layer entity of the serving node processes, the RRC message that is sent by the first UE, including the RRC connection setup complete message, to be sent as a corresponding PDCP PDU.
  • the PDCP PDU, the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, and the RRC connection setup complete message is an RRC message carried by the SRB1;
  • the first PDCP layer entity in the first anchor node will The RRC message carried by the SRB1 is processed and sent to the RRC layer entity, or the second PDCP layer entity in the first anchor node processes the RRC message carried by the SRB2 and sends the RRC message to the RRC layer entity.
  • the method may further include: the first anchor node sending, to the serving node, a PDCP PDU corresponding to an RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC message is used by the RRC message.
  • the first RLC layer entity of the serving node processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the MAC layer and the physical layer, or the RRC message is used for the second RLC layer of the serving node.
  • the entity processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • FIG. 16 is a flowchart of an RRC connection method on an anchor node side according to Embodiment 15 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1.
  • the execution body of the method is an anchor node.
  • the indication information indicating the SRB type is also sent, as shown in FIG. 16.
  • the method specifically includes:
  • Step 1601 Before receiving the RRC connection setup complete message sent by the first UE, the first anchor node receives the configuration parameter and the UE identifier of the first UE sent by the serving node, where the first anchor node learns The configuration parameter of the first UE.
  • the receiving, by the first anchor node, the configuration parameter of the first UE that is sent by the serving node may include: the first anchor node receiving the RRC connection setup message sent by the serving node, where the RRC The connection establishment message includes configuration parameters of the first UE, and the method may further include: the first anchor node receives first indication information sent by the service node, and the first anchor node is according to the first The indication information identifies that the RRC connection setup message is an RRC message carried by the SRB0, and performs processing by using an RRC layer entity of the first anchor node.
  • the foregoing first indication information may also be carried in the RRC connection setup message or carried in a control plane signaling message carrying the RRC connection setup message.
  • Step 1602 The first anchor node receives an RRC connection setup complete message sent by the serving node.
  • Step 1603 Establish an RRC connection between the first anchor node and the first UE according to the RRC connection setup complete message.
  • the RRC connection setup complete message is the RRC connection setup complete message generated by the first UE according to the RRC connection setup message sent by the serving node, and the RRC connection setup complete message is sent to the service. node.
  • the serving node broadcasts the sending system message, and receives the random access message sent by the first user equipment UE according to the system message, and sends the random access response message to the first UE, and then receives the first UE.
  • the receiving, by the first anchor node, the RRC connection setup complete message sent by the serving node may include: the first anchor node receiving, by the serving node, a control plane that carries the RRC connection setup complete message a signaling message, where the RRC connection setup complete message carries the second indication information, or the control plane signaling message carries the second indication information, the first anchor node And determining, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the first anchor node may also separately receive the second indication information sent by the serving node, and the first anchor node identifies, according to the second indication information, that the RRC connection setup complete message is an RRC message carried by the SRB1.
  • the method may further include: the first anchor node receiving, by the RLC layer entity of the serving node, processing, by the first UE, an RRC message that includes the RRC connection setup complete message as a corresponding The PDCP PDU sent after the PDCP PDU, the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, and the RRC connection setup complete message is an RRC message carried by the SRB1;
  • the first PDCP layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the second PDCP layer entity in the first anchor node processes the RRC message carried by the SRB2 and sends the RRC message to the RRC layer entity.
  • the method may further include: the first anchor node sending, to the serving node, a PDCP PDU corresponding to an RRC message, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, where the RRC message is used by the RRC message.
  • the first RLC layer entity of the serving node processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the MAC layer and the physical layer, or the RRC message is used for the second RLC layer of the serving node.
  • the entity processes the RRC message carried by the SRB2 and sends the RRC message to the first UE through the MAC layer and the physical layer.
  • the indication information indicating the SRB type is sent to the RRC message sent between the serving node and the anchor node, so that the service node and the anchor node perform corresponding processing according to the SRB type.
  • the RRC function is separated into the service node and the anchor node.
  • FIG. 17 is a flowchart of an RRC reconnection method on an anchor node side according to Embodiment 16 of the present invention.
  • the RRC reconnection method is based on the network architecture shown in FIG. 1.
  • the execution body of the method is an anchor node. As shown in FIG. 17, the method specifically includes:
  • Step 1701 The first anchor node receives an RRC connection reestablishment complete message sent by the second serving node.
  • Step 1702 Reestablish an RRC connection between the first anchor node and the first UE according to the RRC connection reestablishment complete message.
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and sends the RRC connection reestablishment complete message to the Said second service node.
  • the second serving node broadcasts the sending system message, and receives the random access message sent by the first user equipment UE according to the system message, after sending the random access response message to the first UE, receiving the An RRC connection reestablishment request message sent by the UE, and the RRC connection reestablishment request message is generated according to the RRC connection reestablishment request message, and is sent to the first UE, and after receiving the RRC connection reestablishment complete message sent by the first UE,
  • the anchor node sends an RRC Connection Reestablishment Complete message.
  • the method may further include: the first anchor node receiving the RRC connection reestablishment message sent by the second serving node
  • the first indication information the first anchor node identifies, according to the first indication information, that the RRC connection reestablishment message is an RRC message carried by the SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the method may further include: the first anchor node receiving the RRC connection reestablishment sent by the second serving node
  • the first RRC connection reestablishment message carries the first indication information
  • the control plane signaling message that carries the RRC connection reestablishment message carries the first indication information, where the first indication information is used by the first anchor node.
  • identifying, according to the first indication information, the RRC connection reestablishment message is an RRC message carried by the SRB0, and is processed by an RRC layer entity of the first anchor node.
  • the method may further include: the first anchor node receiving the configuration parameter of the first UE sent by the second serving node, The configuration parameters of the first UE are learned by the first anchor node.
  • the receiving, by the first anchor node, the RRC connection reestablishment complete message sent by the second serving node may include: receiving, by the first anchor node, an RRC connection reestablishment complete message sent by the second serving node, where the RRC And the second indication information is carried in the control plane signaling message that carries the RRC connection reestablishment complete message, and the first anchor node identifies the RRC according to the second indication information.
  • the connection reestablishment complete message is an RRC message carried by SRB1.
  • the method may further include: the first anchor node receives the second indication information sent by the second serving node, and the first anchor node identifies, according to the second indication information, that the RRC connection reestablishment complete message is SRB1 The RRC message carried.
  • the method may further include:
  • the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2, the RRC connection reestablishment complete message is an RRC message carried by the SRB1; the first PDCP in the first anchor node
  • the layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the RRC layer entity, or the second PDCP layer entity in the first anchor node processes the RRC message carried by the SRB2 and sends the RRC message to the RRC layer entity.
  • the method may further include:
  • the first anchor node sends a PDCP PDU corresponding to the RRC message to the second serving node, where the RRC message includes an RRC message carried by the SRB1 or an RRC message carried by the SRB2; the RRC message is used by the second serving node.
  • the first RLC layer entity processes the RRC message carried by the SRB1 and sends the RRC message to the first UE through the MAC layer and the physical layer, or the RRC message is used for the second RLC layer entity of the second serving node.
  • the RRC message carried by the SRB2 is processed and sent to the first UE by using a MAC layer and a physical layer.
  • the RRC reconnection method provided by the embodiment of the present invention can effectively reduce the signaling load of the core network.
  • FIG. 18 is a flowchart of an RRC reconnection method on an anchor node side according to Embodiment 17 of the present invention.
  • the RRC reconnection method is based on the network architecture shown in FIG. 1.
  • the execution body of the method is an anchor node, so that the second serving node instructs the UE to generate the data according to the auxiliary parameter according to the auxiliary parameter delivered by the anchor node.
  • the method specifically includes:
  • Step 1801 Before the second serving node sends the RRC connection reestablishment message to the first UE, the first anchor node sends, to the second serving node, the first user equipment of the first UE that has established an RRC connection with the first anchor node. Identifies the UEID and the next hop link count NCC.
  • the first anchor node sends, to the second serving node, a first user equipment identifier UEID and a next hop link of the first UE that has established an RRC connection with the first anchor node.
  • Counting NCC can include:
  • the first anchor node After the first anchor node establishes an RRC connection for the first UE, the first anchor node sends, to the second serving node, the first UE that has established an RRC connection with the first anchor node.
  • the first anchor node After receiving the request message sent by the second serving node, the first anchor node sends, to the second serving node, a first UEID and an NCC of the first UE that has established an RRC connection with the first anchor node. .
  • the method may further include: after the RRC connection of the first UE leaves the first anchor node, the first anchor node sends signaling to the second serving node for the second service The node releases the NCC of the first UE according to the signaling.
  • Step 1802 The first anchor node receives an RRC connection reestablishment complete message sent by the second serving node.
  • Step 1803 Reestablish an RRC connection between the first anchor node and the first UE according to the RRC connection reestablishment complete message.
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and sends the RRC connection reestablishment complete message to the Said second service node.
  • the second serving node broadcasts the sending system message, and receives the first user equipment UE root And after receiving the random access response message to the first UE, receiving an RRC connection reestablishment request message sent by the first UE, and generating, according to the RRC connection reestablishment request message, according to the random access message sent by the system message
  • the RRC connection reestablishment message is sent to the first UE, and after receiving the RRC connection reestablishment complete message sent by the first UE, the RRC connection reestablishment complete message is sent to the first anchor node.
  • the receiving, by the second serving node, the RRC connection reestablishment request message sent by the first UE may include: the second serving node receiving the RRC connection reestablishment request message sent by the first UE, the RRC connection reestablishment request message
  • the first UEID is included in the middle.
  • the second serving node generates an RRC connection reestablishment message according to the RRC connection reestablishment request message, and the RRC connection reestablishment message is sent to the first UE, where the second serving node obtains the location according to the first UEID.
  • the NCC generates an RRC connection reestablishment message including the NCC, and sends the RRC connection reestablishment message to the first UE, where the first UE deduces a new key according to the NCC.
  • the RRC reconnection method of the embodiment of the present invention can not only effectively reduce the signaling load of the core network, but also the second serving node can generate an RRC connection reestablishment message according to the auxiliary parameter delivered by the first anchor node.
  • the auxiliary parameter carried in the RRC connection reestablishment message instructs the first UE to derive a new key according to the auxiliary parameter.
  • FIG. 19 is a flowchart of an RRC reconnection method on an anchor node side according to Embodiment 18 of the present invention.
  • the RRC connection method is based on the network architecture shown in FIG. 1.
  • the execution body of the method is an anchor node, so that the second serving node identifies, according to the auxiliary parameter sent by the first anchor node, whether the source cell of the first UE is the second. If the neighboring cell of the cell where the serving node is located or the cell where the second serving node is located, when the source cell of the first UE is the neighboring cell of the cell where the second serving node is located or the cell where the second serving node is located, the first indication is The UE uses the original key without generating a new key. As shown in FIG. 19, the method specifically includes:
  • Step 1901 Before the second serving node sends the RRC connection reestablishment message to the first UE, the first anchor node sends the neighboring cell identifier served by the first anchor node to the second serving node.
  • Step 1902 The first anchor node receives an RRC connection reestablishment complete message sent by the second serving node.
  • Step 1903 Reestablish an RRC connection between the first anchor node and the first UE according to the RRC connection reestablishment complete message.
  • the RRC connection reestablishment complete message is the RRC connection reestablishment complete message generated by the first UE according to the RRC connection reestablishment message sent by the second serving node, and sends the RRC connection reestablishment complete message to the Said second service node.
  • the second serving node broadcasts the sending system message, and receives the random access message sent by the first user equipment UE according to the system message, after sending the random access response message to the first UE, receiving the An RRC connection reestablishment request message sent by the UE, and the RRC connection reestablishment request message is generated according to the RRC connection reestablishment request message, and is sent to the first UE, and after receiving the RRC connection reestablishment complete message sent by the first UE,
  • the anchor node sends an RRC Connection Reestablishment Complete message.
  • the RRC connection reestablishment request message includes a source cell identifier, where the second serving node identifies that the source cell is a neighboring cell served by the first anchor node, or the source cell is a current cell, Sending fourth indication information to the first UE, instructing the first UE to use the original key, or indicating that the first UE key does not change, or instructing the first UE to use the KeNB to generate a new secret key.
  • the RRC reconnection method provided by the embodiment of the present invention can not only effectively reduce the signaling load of the core network, but also the source of the first UE is identified by the second serving node according to the auxiliary parameter sent by the first anchor node.
  • the cell is the neighboring cell served by the first anchor node or the cell where the second serving node is located, that is, whether the second serving node and the original serving node of the first UE are all attributed to the first anchor node, when the first UE is identified
  • the source cell is the neighboring cell served by the first anchor node or the cell where the second serving node is located, that is, when the second serving node and the original serving node of the first UE are both assigned to the first anchor node
  • the original key can effectively shorten the processing time of the first UE without generating a new key.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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Abstract

本发明实施例涉及RRC连接方法、重连接方法和装置，该RRC连接方法包括：服务节点广播发送系统消息；接收第一UE根据系统消息发送的随机接入消息；向第一UE发送随机接入响应消息；接收第一UE发送的RRC连接请求消息；根据RRC连接请求消息生成RRC连接建立消息，将RRC连接建立消息发送给第一UE；接收第一UE发送的RRC连接建立完成消息；将RRC连接建立完成消息发送给第一锚节点，从而使得第一锚节点和第一UE建立RRC连接。本发明实施例中，由于在第一锚节点和第一UE之间建立了RRC连接，因此，当UE的服务节点发生切换时，MME与第一锚节点之间的连接并未改变，当MME有寻呼消息要发送时，MME无需向该寻呼消息对应TA区域内所有基站发送寻呼消息，有效降低了核心网信令负荷。

Description

无线资源控制RRC连接方法、重连接方法和装置 技术领域
本发明涉及移动通信领域，尤其涉及无线资源控制RRC连接方法、重连接方法和装置。
背景技术
随着用户设备(UE，User Equipment)的日益增多，现有的无线通信系统已经无法满足用户的无线通信需求，因此迫切需要提升无线通信系统的系统容量，提升系统容量可以采取增设基站的方法来实现，典型的做法是在一个宏小区内密集地部属很多小型基站，从而形成更多地微小区。但是大多数的UE只会连接到一个基站，由该基站为UE提供无线通信服务，为描述简便，将为UE提供无线通信服务的基站称为UE的服务节点。
现有技术中，当UE从一个小区移动到另一个小区，或者，当UE由一个基站的覆盖区域移动到另一个基站的覆盖区域，或者，当UE发现无线链路失败(RLF,Radio Link Failure)时，UE可能进行服务节点的切换，即UE的服务节点从一个基站更换为另一个基站。由于服务节点与移动管理实体(MME，Mobility Management Entity)之间通过控制面接口相连接，服务节点与服务网关(SGW，Serving Gateway)之间通过用户面接口相连接，当UE的服务节点发生切换后，就需要新的服务节点和MME之间发送信令更新服务节点与MME之间的S1控制面连接，同时MME和SGW之间也需要发送信令更新服务节点与SGW之间的S1用户面连接，这样每次切换过程会带来至少4条消息，当基站数量部署密度增加时，切换数量急剧增加，从而引起核心网信令负荷急剧增加；同时，每个服务节点和MME之间通过控制面接口相连接,当MME有 寻呼消息要发送时，MME就会向该寻呼消息对应的跟踪区(TA,tracking area)区域内所有基站发送寻呼消息，从而导致核心网信令负荷急剧增加。
发明内容
本发明实施例提供了一种无线资源控制(RRC，Radio Resource Control)连接方法、重连接方法和装置，用以解决现有技术中密集部署基站时服务节点切换或者MME发送寻呼消息所导致的核心网信令负荷急剧增加的问题。
第一方面，提供了一种RRC连接装置，所述装置设置于服务节点上，所述装置包括：
发送单元，用于广播发送系统消息；
接收单元，用于接收第一用户设备UE根据所述发送单元发送的系统消息发送的随机接入消息；
所述发送单元，还用于根据所述接收单元接收的随机接入消息向所述第一UE发送随机接入响应消息；
所述接收单元，还用于接收所述第一UE根据所述发送单元发送的随机接入响应消息发送的RRC连接请求消息；
消息生成单元，用于根据所述接收单元接收的RRC连接请求消息生成RRC连接建立消息；
所述发送单元，还用于将所述消息生成单元生成的RRC连接建立消息发送给所述第一UE；
所述接收单元，还用于接收所述第一UE发送的RRC连接建立完成消息；
所述发送单元，还用于将所述接收单元接收的RRC连接建立完成消息发送给所述第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
结合第一方面，在第一方面的第一种实现方式中，所述消息生成单元包括：
选择子单元，用于根据所述接收单元接收到的包括所述第一UE的至少一 个UE发送的RRC连接请求消息，从所述至少一个UE中选择出所述第一UE；
消息生成子单元，用于根据所述选择子单元选择出的所述第一UE的RRC连接请求消息生成所述第一UE的RRC连接建立消息。
结合第一方面或第一方面的第一种实现方式，在第一方面的第二种实现方式中，所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接建立完成消息之前，将所述第一UE的配置参数和所述第一UE的UE标识发送给所述第一锚节点。
结合第一方面的第二种实现方式，在第一方面的第三种实现方式中，所述发送单元具体用于：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第一方面的第二种实现方式，在第一方面的第四种实现方式中，所述发送单元具体用于：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述发送单元还用于：将第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载(SRB，Signalling Radio Bearer)0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第一方面，在第一方面的第五种实现方式中，所述发送单元具体用于：在所述RRC连接建立完成消息中携带第二指示信息，或者在承载所述RRC连接建立完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
结合第一方面，在第一方面的第六种实现方式中，所述发送单元还用于：将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
结合第一方面或第一方面的第一至第六种实现方式之一，在第一方面的第七种实现方式中，所述装置还包括：
分组数据处理单元，用于通过无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元(PDCP PDU,Packet Data Convergence Protocol Protocol Data Unit)后发送给所述第一锚节点,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第一方面或第一方面的第一至第七种实现方式之一，在第一方面的第八种实现方式中，所述接收单元，具体用于接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一无线链路控制(RLC,Radio Link Control)层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制(MAC,Medium Access Control)层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
第二方面，提供了一种RRC重连接装置，所述装置设置于服务节点上，所述装置包括：
发送单元，用于广播发送系统消息；
接收单元，用于接收第一用户设备UE根据所述发送单元发送的系统消息发送的随机接入消息；
所述发送单元，还用于根据所述接收单元接收的随机接入消息向所述第一UE发送随机接入响应消息；
所述接收单元，还用于接收所述第一UE根据所述发送单元发送的随机接入响应消息发送的RRC连接重建请求消息；
消息生成单元，用于根据所述接收单元接收的RRC连接重建请求消息生成RRC连接重建消息；
所述发送单元，还用于将所述消息生成单元生成的RRC连接重建消息发送给所述第一UE；
所述接收单元，还用于接收所述第一UE根据所述发送单元发送的RRC连接重建消息发送的RRC连接重建完成消息；
所述发送单元，还用于将所述所述接收单元接收的RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
结合第二方面，在第二方面的第一种实现方式中，所述装置还包括：
第一获取单元，用于在所述发送单元将所述RRC连接重建消息发送给所述第一UE之前，获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数(NCC,NextHopChainingCount)；
所述接收单元，具体用于接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
所述消息生成单元，具体用于根据所述所述接收单元接收的所述第一UEID获得所述第一获取单元获取的所述NCC，生成包含所述NCC的RRC连接重建消息；
所述发送单元，具体用于将所述消息生成单元生成的RRC连接重建消息 发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
结合第二方面的第一种实现方式，在第二方面的第二种实现方式中，所述第一获取单元具体用于：
当所述第一锚节点为所述第一UE建立RRC连接后，获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
向所述第一锚节点发送请求消息后，接收所述第一锚节点发送的建立了RRC连接的所述第一UE的第一UEID和NCC。
结合第二方面的第一种实现方式，在第二方面的第三种实现方式中，所述装置还包括：
信令接收单元，用于所述第一获取单元获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，当所述第一UE的RRC连接从所述第一锚节点离开后，接收所述第一锚节点发送的信令；
释放单元，用于根据所述信令接收单元接收的信令释放所述第一UE的NCC。
结合第二方面，在第二方面的第四种实现方式中，所述装置还包括：
第二获取单元，用于所述发送单元将所述RRC连接重建消息发送给所述第一UE之前，获取所述第一锚节点服务的相邻小区标识；
所述发送单元，还用于当根据所述接收单元接收的所述RRC连接重建请求消息中包括的源小区标识，识别出所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区时，向所述第一UE发送第四指示信息，所述第四指示信息用于指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
结合第二方面，在第二方面的第五种实现方式中，所述发送单元，还用 于在所述接收单元接收所述第一UE发送的RRC连接重建完成消息之前，将所述RRC连接重建消息和第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第二方面，在第二方面的第六种实现方式中，所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接重建完成消息之前，将所述RRC连接重建消息发送给所述第一锚节点，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第二方面，在第二方面的第七种实现方式中，所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接重建完成消息之前，将所述第一UE的配置参数发送给所述第一锚节点。
结合第二方面，在第二方面的第八种实现方式中，所述发送单元，具体用于在所述RRC连接重建完成消息中携带第二指示信息，或者在承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第二方面，在第二方面的第九种实现方式中，所述发送单元，还用于将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第二方面，在第二方面的第十种实现方式中，所述装置还包括：
分组数据处理单元，用于通过无线链路控制RLC层实体将所述第一UE发 送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第二方面，在第二方面的第十一种实现方式中，所述接收单元，具体用于接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
第三方面，提供了一种RRC连接装置，所述装置设置于锚节点上，所述装置包括：
接收单元，用于接收所述服务节点发送的RRC连接建立完成消息；
连接建立单元，用于根据所述接收单元接收的RRC连接建立完成消息在所述第一锚节点和所述第一UE间建立RRC连接；
所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
结合第三方面，在第三方面的第一种实现方式中，所述接收单元，还用于在所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，接收所述服务节点发送的所述第一UE的配置参数和UE标识。
结合第三方面的第一种实现方式，在第三方面的第二种实现方式中，所述接收单元，具体用于接收所述服务节点发送的所述RRC连接建立消息，所 述RRC连接建立消息中包括所述第一UE的配置参数；
所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述装置还包括：
识别单元，用于根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第三方面的第一种实现方式，在第三方面的第三种实现方式中，所述接收单元，具体用于接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述接收单元，还用于接收所述服务节点发送的第一指示信息；
所述装置还包括：
识别单元，用于根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第三方面，在第三方面的第四种实现方式中，所述接收单元，具体用于接收所述服务节点发送的承载所述RRC连接建立完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息；所述装置还包括：
识别单元，用于根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
结合第三方面，在第三方面的第五种实现方式中，所述接收单元，还用于接收所述服务节点发送的第二指示信息；所述装置还包括：
识别单元，用于根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
结合第三方面，在第三方面的第六种实现方式中，所述接收单元，具体用于接收所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括 所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述装置还包括：
第一分组数据处理单元，用于通过第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体；
第二分组数据处理单元，用于通过第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第三方面或第三方面的第一至第六种实现方式之一，在第三方面的第七种实现方式中，所述装置还包括：
发送单元，用于向所述服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
第四方面，提供了一种RRC重连接装置，所述装置设置于锚节点上，所述装置包括：
接收单元，用于接收第二服务节点发送的RRC连接重建完成消息；
连接重建立单元，用于根据所述接收单元接收的RRC连接重建完成消息在第一锚节点和第一UE间重新建立RRC连接；
所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
结合第四方面，在第四方面的第一种实现方式中，所述装置还包括：
第一发送单元，用于在所述第二服务节点将所述RRC连接重建消息发送 给所述第一UE之前，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
所述接收单元，具体用于接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
结合第四方面的第一种实现方式，在第四方面的第二种实现方式中，所述第一发送单元具体用于：
当所述第一锚节点为所述第一UE建立RRC连接后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
所述第一锚节点接收所述第二服务节点发送的请求消息后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一UEID和NCC。
结合第四方面的第一种实现方式，在第四方面的第三种实现方式中，所述装置还包括：
信令发送单元，用于所述第一发送单元向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，当所述第一UE的RRC连接从所述第一锚节点离开后，向所述第二服务节点发送信令，所述信令用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
结合第四方面，在第四方面的第四种实现方式中，所述装置还包括：
第二发送单元，用于在所述第二服务节点将所述RRC连接重建消息发送 给所述第一UE之前，向所述第二服务节点发送所述第一锚节点服务的相邻小区标识；
所述RRC连接重建请求消息中包括源小区标识，用以所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
结合第四方面，在第四方面的第五种实现方式中，所述接收单元，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述RRC连接重建消息和第一指示信息；所述装置还包括：
识别单元，用于根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第四方面，在第四方面的第六种实现方式中，所述接收单元，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述RRC连接重建消息，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息；所述装置还包括：
识别单元，用于根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第四方面，在第四方面的第七种实现方式中，所述接收单元，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述第一UE的配置参数。
结合第四方面，在第四方面的第八种实现方式中，所述接收单元，具体 用于接收第二服务节点发送的RRC连接重建完成消息，所述RRC连接重建完成消息中携带第二指示信息，或者承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息；所述装置还包括：
识别单元，用于根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第四方面，在第四方面的第九种实现方式中，所述接收单元，还用于接收第二服务节点发送的第二指示信息；所述装置还包括：
识别单元，用于根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第四方面，在第四方面的第十种实现方式中，所述接收单元，具体用于接收所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后，发送给所述第一锚节点的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述装置还包括：
第一分组数据处理单元，用于通过所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体；
第二分组数据处理单元，用于通过所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第四方面，在第四方面的第十一种实现方式中，所述装置还包括：
第三发送单元，用于向所述第二服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送 给所述第一UE。
第五方面，提供了一种服务节点，所述服务节点包括：
发射机；
接收机；
处理器；
所述发射机，用于广播发送系统消息；
所述接收机，用于接收第一用户设备UE根据所述系统消息发送的随机接入消息；
所述发射机，还用于向所述第一UE发送随机接入响应消息；
所述接收机，还用于接收所述第一UE发送的RRC连接请求消息；
所述处理器，用于根据所述接收机接收的所述RRC连接请求消息生成RRC连接建立消息；
所述发射机，还用于将所述处理器生成的所述RRC连接建立消息发送给所述第一UE；
所述接收机，还用于接收所述第一UE发送的RRC连接建立完成消息；
所述发射机，还用于将所述RRC连接建立完成消息发送给所述第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
第六方面，提供了一种服务节点，所述服务节点包括：
发射机；
接收机；
处理器；
所述发射机，用于广播发送系统消息；
所述接收机，用于接收第一用户设备UE根据所述系统消息发送的随机接入消息；
所述发射机，还用于向所述第一UE发送随机接入响应消息；
所述接收机，还用于接收所述第一UE发送的RRC连接重建请求消息；
所述处理器，用于根据所述接收机接收到的所述RRC连接重建请求消息生成RRC连接重建消息；
所述发射机，还用于将所述处理器生成的所述RRC连接重建消息发送给所述第一UE；
所述接收机，还用于接收所述第一UE发送的RRC连接重建完成消息；
所述发射机，还用于将所述RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
第七方面，提供了一种锚节点，所述锚节点包括：
接收机；
处理器；
所述接收机，用于接收所述服务节点发送的RRC连接建立完成消息；
所述处理器，用于根据所述接收机接收的所述RRC连接建立完成消息在所述第一锚节点和所述第一UE间建立RRC连接；
所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
第八方面，提供了一种锚节点，所述锚节点包括：
接收机；
处理器；
所述接收机，用于接收所述第二服务节点发送的RRC连接重建完成消息；
所述处理器，用于根据所述接收机接收的所述RRC连接重建完成消息在所述第一锚节点和所述第一UE间重新建立RRC连接；
所述RRC连接重建完成消息为所述第一UE根据所述服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述服务节点。
第九方面，提供了一种RRC连接方法，所述方法包括：
服务节点广播发送系统消息；
所述服务节点接收第一用户设备UE根据所述系统消息发送的随机接入消息；
向所述第一UE发送随机接入响应消息；
所述服务节点接收所述第一UE发送的RRC连接请求消息；
所述服务节点根据所述RRC连接请求消息生成RRC连接建立消息，将所述RRC连接建立消息发送给所述第一UE；
所述服务节点接收所述第一UE发送的RRC连接建立完成消息；
所述服务节点将所述RRC连接建立完成消息发送给所述第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
结合第九方面，在第九方面的第一种实现方式中，
所述服务节点根据所述RRC连接请求消息生成RRC连接建立消息，包括：所述服务节点根据接收到的包括所述第一UE的至少一个UE发送的RRC连接请求消息，从所述至少一个UE中选择出所述第一UE，根据所述第一UE的RRC连接请求消息生成所述第一UE的RRC连接建立消息。
结合第九方面或第九方面的第一种实现方式，在第九方面的第二种实现方式中，所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，还包括：
将所述第一UE的配置参数和所述第一UE的UE标识发送给所述第一锚节点。
结合第九方面的第二种实现方式，在第九方面的第三种实现方式中，所述将所述第一UE的配置参数发送给所述第一锚节点，包括：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述 第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第九方面的第二种实现方式，在第九方面的第四种实现方式中，所述将所述第一UE的配置参数发送给所述第一锚节点，包括：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述方法还包括：所述服务节点将第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第九方面，在第九方面的第五种实现方式中，所述服务节点将所述RRC连接建立完成消息发送给所述第一锚节点，包括：所述服务节点在所述RRC连接建立完成消息中携带第二指示信息，或者在承载所述RRC连接建立完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
结合第九方面，在第九方面的第六种实现方式中，所述方法还包括：所述服务节点将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
结合第九方面或第九方面的第一至第六种实现方式之一，在第九方面的第七种实现方式中，所述方法还包括：所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送给所述第一锚节点,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于 所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第九方面或第九方面的第一至第七种实现方式之一，在第九方面的第八种实现方式中，所述方法还包括：所述服务节点接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
第十方面，提供了一种RRC重连接方法，所述方法包括：
第二服务节点广播发送系统消息；
所述第二服务节点接收第一用户设备UE根据所述系统消息发送的随机接入消息；
向所述第一UE发送随机接入响应消息；
所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息；
所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE；
所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息；
所述第二服务节点将所述RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
结合第十方面，在第十方面的第一种实现方式中，所述将所述RRC连接重建消息发送给所述第一UE之前，所述方法还包括：
所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，包括：所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
结合第十方面的第一种实现方式，在第十方面的第二种实现方式中，所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC，包括：
当所述第一锚节点为所述第一UE建立RRC连接后，所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
所述第二服务节点向所述第一锚节点发送请求消息后，接收所述第一锚节点发送的建立了RRC连接的所述第一UE的第一UEID和NCC。
结合第十方面的第一种实现方式，在第十方面的第三种实现方式中，所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，所述方法还包括：
当所述第一UE的RRC连接从所述第一锚节点离开后，所述第二服务节点接收所述第一锚节点发送的信令，用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
结合第十方面，在第十方面的第四种实现方式中，所述将所述RRC连接重建消息发送给所述第一UE之前，所述方法还包括：
所述第二服务节点获取所述第一锚节点服务的相邻小区标识；
所述RRC连接重建请求消息中包括源小区标识，所述第二服务节点识别 所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，所述第四指示信息用于指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
结合第十方面，在第十方面的第五种实现方式中，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第二服务节点将所述RRC连接重建消息和第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第十方面，在第十方面的第六种实现方式中，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第二服务节点将所述RRC连接重建消息发送给所述第一锚节点，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第十方面，在第十方面的第七种实现方式中，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，还包括：将所述第一UE的配置参数发送给所述第一锚节点。
结合第十方面，在第十方面的第八种实现方式中，所述第二服务节点将所述RRC连接重建完成消息发送给所述第一锚节点，包括：所述第二服务节点在所述RRC连接重建完成消息中携带第二指示信息，或者在承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第十方面，在第十方面的第九种实现方式中，所述方法还包括：所述服务节点将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第十方面，在第十方面的第十种实现方式中，所述方法还包括：
所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第十方面，在第十方面的第十一种实现方式中，所述方法还包括：
所述第二服务节点接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
第十一方面，提供了一种RRC连接方法，所述方法包括：
第一锚节点接收所述服务节点发送的RRC连接建立完成消息；
根据所述RRC连接建立完成消息在所述第一锚节点和所述第一UE间建立RRC连接；
所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完 成消息发送给所述服务节点。
结合第十一方面，在第十一方面的第一种实现方式中，所述方法还包括：
在所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数和UE标识。
结合第十一方面的第一种实现方式，在第十一方面的第二种实现方式中，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数，包括：所述第一锚节点接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述方法还包括：所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第十一方面的第一种实现方式，在第十一方面的第三种实现方式中，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数，包括：所述第一锚节点接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述方法还包括：所述第一锚节点接收所述服务节点发送的第一指示信息，所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第十一方面，在第十一方面的第四种实现方式中，所述第一锚节点接收所述服务节点发送的所述RRC连接建立完成消息，包括：所述第一锚节点接收所述服务节点发送的承载所述RRC连接建立完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
结合第十一方面，在第十一方面的第五种实现方式中，所述方法还包括：所述第一锚节点接收所述服务节点发送的第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
结合第十一方面，在第十一方面的第六种实现方式中，所述方法还包括：所述第一锚节点接收所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第十一方面或第十一方面的第一至第六种实现方式之一，在第十一方面的第七种实现方式中，所述方法还包括：所述第一锚节点向所述服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
第十二方面，提供了一种RRC重连接方法，所述方法包括：
第一锚节点接收第二服务节点发送的RRC连接重建完成消息；
根据所述RRC连接重建完成消息在所述第一锚节点和第一UE间重新建立RRC连接；
所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
结合第十二方面，在第十二方面的第一种实现方式中，所述方法还包括：
在所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，包括：所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
结合第十二方面的第一种实现方式，在第十二方面的第二种实现方式中，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC，包括：
当所述第一锚节点为所述第一UE建立RRC连接后，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
所述第一锚节点接收所述第二服务节点发送的请求消息后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一UEID和NCC。
结合第十二方面的第一种实现方式，在第十二方面的第三种实现方式中，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，所述方法还包括：
当所述第一UE的RRC连接从所述第一锚节点离开后，所述第一锚节点向 所述第二服务节点发送信令，所述信令用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
结合第十二方面，在第十二方面的第四种实现方式中，所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，所述方法还包括：
所述第一锚节点向所述第二服务节点发送所述第一锚节点服务的相邻小区标识；
所述RRC连接重建请求消息中包括源小区标识，用以所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
结合第十二方面，在第十二方面的第五种实现方式中，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第一锚节点接收所述第二服务节点发送的所述RRC连接重建消息和第一指示信息，所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第十二方面，在第十二方面的第六种实现方式中，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第一锚节点接收所述第二服务节点发送的所述RRC连接重建消息，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
结合第十二方面，在第十二方面的第七种实现方式中，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，还包括：所述第一锚 节点接收所述第二服务节点发送的所述第一UE的配置参数。
结合第十二方面，在第十二方面的第八种实现方式中，所述第一锚节点接收第二服务节点发送的RRC连接重建完成消息，包括：第一锚节点接收第二服务节点发送的RRC连接重建完成消息，所述RRC连接重建完成消息中携带第二指示信息，或者承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第十二方面，在第十二方面的第九种实现方式中，所述方法还包括：所述第一锚节点接收第二服务节点发送的第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
结合第十二方面，在第十二方面的第十种实现方式中，所述方法还包括：
所述第一锚节点接收所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后，发送给所述第一锚节点的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
结合第十二方面，在第十二方面的第十一种实现方式中，所述方法还包括：
所述第一锚节点向所述第二服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物 理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
本发明实施例提供的RRC连接方法中，先由服务节点广播发送系统消息，并接收第一UE根据所述系统消息发送的随机接入消息，然后向第一UE发送随机接入响应消息，所述服务节点接收所述第一UE发送的RRC连接请求消息，所述服务节点根据所述RRC连接请求消息生成RRC连接建立消息，将所述RRC连接建立消息发送给所述第一UE，所述服务节点接收所述第一UE发送的RRC连接建立完成消息，所述服务节点将所述RRC连接建立完成消息发送给所述第一锚节点，从而为所述第一锚节点和所述第一UE建立RRC连接。由上可见，本发明实施例中，由于在所述第一锚节点和所述第一UE之间建立了RRC连接，因此，当UE的服务节点发生切换时，MME与第一锚节点之间的连接并未改变，当MME有寻呼消息要发送时，MME无需向该寻呼消息对应TA区域内所有基站发送寻呼消息，有效降低了核心网信令负荷。
附图说明
图1为本发明实施例提供的网络架构示意图；
图2为本发明实施例一提供的RRC连接装置的装置结构示意图；
图3为本发明实施例二提供的RRC重连接装置的装置结构示意图；
图4为本发明实施例三提供的RRC连接装置的装置结构示意图；
图5为本发明实施例四提供的RRC重连接装置的装置结构示意图；
图6为本发明实施例五提供的服务节点结构示意图；
图7为本发明实施例六提供的服务节点结构示意图；
图8为本发明实施例七提供的锚节点结构示意图；
图9为本发明实施例八提供的锚节点结构示意图；
图10为本发明实施例九提供的服务节点侧的RRC连接方法的流程图；
图11为本发明实施例十提供的服务节点侧的RRC连接方法的流程图；
图12为本发明实施例十一提供的服务节点侧的RRC重连接方法的流程图；
图13为本发明实施例十二提供的服务节点侧的RRC重连接方法的流程图；
图14为本发明实施例十三提供的服务节点侧的RRC重连接方法的流程图；
图15为本发明实施例十四提供的锚节点侧的RRC连接方法的流程图；
图16为本发明实施例十五提供的锚节点侧的RRC连接方法的流程图；
图17为本发明实施例十六提供的锚节点侧的RRC重连接方法的流程图；
图18为本发明实施例十七提供的锚节点侧的RRC重连接方法的流程图；
图19为本发明实施例十八提供的锚节点侧的RRC重连接方法的流程图。
具体实施方式
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为便于对本发明实施例的理解，下面将结合附图以具体实施例做进一步的解释说明，实施例并不构成对本发明实施例的限定。
图1为本发明实施例提供的网络架构示意图。该网络架构由移动管理实体(MME，Mobility Management Entity)101、服务网关(SGW，Service Gateway)102、锚节点(Anchor Node)103、服务节点(Serving Node)104和用户设备(UE，User Equipment)105组成，其中，锚节点103可以为现有的基站， 也可以为新设立的网元，服务节点104是为UE105服务的基站。与现有技术中不同的是，现有技术中服务节点104直接与MME101建立连接，而本发明中服务节点104与MME101之间没有直接建立连接，而是通过服务节点104与锚节点103建立连接，锚节点103与MME101建立连接，从而实现服务节点104通过锚节点103与MME101建立连接。本发明实施例中，核心网的MME101和SGW102分别与锚节点103建立S1-C控制面接口和S1-U用户面接口，锚节点103和服务节点104之间通过信号隧道(backhaul)相连建立接口，该接口具体可以为增强型X2接口，也可以为其他类型接口，UE105和服务节点104建立无线链路连接。
本发明实施例中，不是由服务节点104单独处理RRC消息，而是由锚节点103和服务节点104共同处理RRC消息，也就是说，根据RRC消息类型的不同，由锚节点103处理一部分RRC消息，由服务节点104处理其余的RRC消息，以便实现RRC功能分离到上述两个节点上。具体地，锚节点103可以包括用于处理SRB1承载的RRC消息和SRB2承载的RRC消息的RRC协议实体、处理SRB1承载的RRC消息的第一分组数据汇聚协议(PDCP，Packet Data Convergence Protocol)协议实体和处理SRB2承载的RRC消息的第二PDCP协议实体，以使锚节点103具有UE105的SRB1和SRB2的功能，即UE105的SRB1和SRB2终结在锚节点103。服务节点104的协议栈包括UE105的DRB、SRB1、SRB2对应的RLC协议实体，具体地，服务节点104的RLC协议实体包括用于处理SRB1承载的RRC消息的第一RLC层实体和用于处理SRB2承载的RRC消息的第二RLC层实体，以及UE105对应的MAC协议实体、PHY协议实体，服务节点104的协议栈还可以包括用于处理SRB0承载的RRC消息的RRC协议实体，也就是说，服务节点104具有的RRC协议实体，用于产生并发送公共RRC消息，比如MIB、SIB、寻呼消息、MBMS控制信息，以使服务节点104具有处理SRB0承载的RRC消息的功能，负责处理BCCH服务的系统广播消息、PCCH服务的小区寻呼消息，以及可选的CCCH服务的UE的RRC连接建立过程 和RRC连接重建立过程的部分RRC消息，例如，RRC连接请求消息和RRC连接建立消息。
其中，SRB1承载的RRC消息具体可以为连接建立完成时的RRC消息，SRB2承载的RRC消息具体可以为连接建立完成后的RRC消息。
此外，该网络架构对应的RRC消息处理流程可以包括:
第一类RRC消息处理流程，即UE专用的下行链路DL RRC消息处理过程，DL RRC消息包括SRB1承载的RRC消息和SRB2承载的RRC消息。具体地，锚节点103的RRC协议实体产生UE的SRB1承载的RRC消息或者SRB2承载的RRC消息后，递交给和SRB1或者SRB2对应的PDCP协议实体处理，锚节点的PDCP协议实体形成PDCP PDU，通过锚节点和服务节点之间的接口，发送给服务节点，服务节点收到后，解析出PDCP PDU，然后放在服务节点上SRB1或者SRB2对应的RLC协议实体处理，服务节点的RLC协议实体处理后，再由服务节点的MAC层和PHY层处理，发送给UE。
第二类RRC消息处理流程，即UE专用的上行链路UL RRC消息处理过程，UL RRC消息包括SRB1承载的RRC消息和SRB2承载的RRC消息。具体地，服务节点接收到UE的SRB1承载的RRC消息或者SRB2承载的RRC消息后，递交给和SRB1或者SRB2对应的RLC协议实体处理，服务节点的RLC协议实体形成PDCP PDU，通过服务节点和锚节点之间的接口，发送给锚节点,锚节点收到后，解析出PDCP PDU，然后放在锚节点上SRB1或者SRB2对应的PDCP协议实体处理，PDCP协议实体将RRC消息处理后发送给RRC层实体。
第三类RRC消息处理流程，即UE的公共RRC消息处理过程，公共RRC消息包括SRB0承载的RRC消息。公共RRC消息有多种，例如，BCCH服务的系统广播消息，PCCH服务的小区公共DL RRC消息(寻呼、广播)，CCCH服务的连接建立和连接重建过程中的SRB0承载的RRC消息，SRB0承载的RRC消息由服务节点处理。
图1所示的网络架构中，不仅包括服务节点104，还包括锚节点103，由 锚节点103和服务节点104共同处理UE105的RRC消息，由于MME101没有和服务节点104建立S1接口连接,因此，当UE105的服务节点发生切换时，UE的RRC连接维持在锚节点103，并且MME101与锚节点103之间的S1连接并未改变，所以切换过程不会带来相应的切换信令。另外，当MME101有寻呼消息要发送时，MME101只需向该寻呼消息对应TA区域内和MME101有S1接口连接的所有基站或者锚节点103发送，由于MME101没有和服务节点104建立S1接口连接，因此无需向服务节点104发送寻呼消息，相应地不会因为服务节点104的密集部署带来信令的增加，从而有效降低了核心网信令负荷。
图2为本发明实施例一提供的RRC连接装置的装置结构示意图，所述装置设置于服务节点上，所述装置包括：
发送单元201，用于广播发送系统消息；
接收单元202，用于接收第一用户设备UE根据所述发送单元发送的系统消息发送的随机接入消息；
所述发送单元201，还用于根据所述接收单元202接收的随机接入消息向所述第一UE发送随机接入响应消息；
所述接收单元202，还用于接收所述第一UE根据所述发送单元201发送的随机接入响应消息发送的RRC连接请求消息；
消息生成单元203，用于根据所述接收单元202接收的RRC连接请求消息生成RRC连接建立消息；
所述发送单元201，还用于将所述消息生成单元203生成的RRC连接建立消息发送给所述第一UE；
所述接收单元202，还用于接收所述第一UE发送的RRC连接建立完成消息；
所述发送单元201，还用于将所述接收单元202接收的RRC连接建立完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
优选地，所述消息生成单元203包括：
选择子单元，用于根据所述接收单元202接收到的包括所述第一UE的至少一个UE发送的RRC连接请求消息，从所述至少一个UE中选择出所述第一UE；
消息生成子单元，用于根据所述选择子单元选择出的所述第一UE的RRC连接请求消息生成所述第一UE的RRC连接建立消息。
优选地，所述发送单元201，还用于在所述接收单元202接收所述第一UE发送的RRC连接建立完成消息之前，将所述第一UE的配置参数和所述第一UE的UE标识发送给所述第一锚节点。
优选地，所述发送单元201具体用于：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述发送单元201具体用于：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述发送单元201还用于：将第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述发送单元201具体用于：在所述RRC连接建立完成消息中携带第二指示信息，或者在承载所述RRC连接建立完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
优选地，所述发送单元201还用于：将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
优选地，所述装置还包括：
分组数据处理单元204，用于通过无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送给所述第一锚节点,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
优选地，所述接收单元202，具体用于接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
图3为本发明实施例二提供的RRC重连接装置的装置结构示意图，所述装置设置于服务节点上，所述装置包括：
发送单元301，用于广播发送系统消息；
接收单元302，用于接收第一用户设备UE根据所述发送单元301发送的系统消息发送的随机接入消息；
所述发送单元301，还用于根据所述接收单元302接收的随机接入消息向所述第一UE发送随机接入响应消息；
所述接收单元302，还用于接收所述第一UE根据所述发送单元301发送的随机接入响应消息发送的RRC连接重建请求消息；
消息生成单元303，用于根据所述接收单元302接收的RRC连接重建请求消息生成RRC连接重建消息；
所述发送单元301，还用于将所述消息生成单元303生成的RRC连接重建消息发送给所述第一UE；
所述接收单元302，还用于接收所述第一UE根据所述发送单元301发送的RRC连接重建消息发送的RRC连接重建完成消息；
所述发送单元301，还用于将所述所述接收单元302接收的RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
优选地，所述装置还包括：
第一获取单元304，用于在所述发送单元301将所述RRC连接重建消息发送给所述第一UE之前，获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
所述接收单元302，具体用于接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
所述消息生成单元303，具体用于根据所述所述接收单元302接收的所述第一UEID获得所述第一获取单元304获取的所述NCC，生成包含所述NCC的RRC连接重建消息；
所述发送单元301，具体用于将所述消息生成单元303生成的RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
优选地，所述第一获取单元304具体用于：
当所述第一锚节点为所述第一UE建立RRC连接后，获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
向所述第一锚节点发送请求消息后，接收所述第一锚节点发送的建立了RRC连接的所述第一UE的第一UEID和NCC。
优选地，所述装置还包括：
信令接收单元305，用于所述第一获取单元304获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，当所述第一UE的RRC连接从所述第一锚节点离开后，接收所述第一锚节点发送的信令；
释放单元306，用于根据所述信令接收单元305接收的信令释放所述第一UE的NCC。
优选地，所述装置还包括：
第二获取单元307，用于所述发送单元301将所述RRC连接重建消息发送给所述第一UE之前，获取所述第一锚节点服务的相邻小区标识；
所述发送单元301，还用于当根据所述接收单元302接收的所述RRC连接重建请求消息中包括的源小区标识，识别出所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区时，向所述第一UE发送第四指示信息，所述第四指示信息用于指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
优选地，所述发送单元301，还用于在所述接收单元302接收所述第一UE发送的RRC连接重建完成消息之前，将所述RRC连接重建消息和第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述发送单元301，还用于在所述接收单元302接收所述第一UE发送的RRC连接重建完成消息之前，将所述RRC连接重建消息发送给所述第一锚节点，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC 连接重建消的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述发送单元301，还用于在所述接收单元302接收所述第一UE发送的RRC连接重建完成消息之前，将所述第一UE的配置参数发送给所述第一锚节点。
优选地，所述发送单元301，具体用于在所述RRC连接重建完成消息中携带第二指示信息，或者在承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
优选地，所述发送单元301，还用于将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
优选地，所述装置还包括：
分组数据处理单元308，用于通过无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
优选地，所述接收单元302，具体用于接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2RRC消息；所述RRC消息用于所述第二服务节点的 第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
图4为本发明实施例三提供的RRC连接装置的装置结构示意图，所述装置设置于锚节点上，所述装置包括：
接收单元401，用于接收所述服务节点发送的RRC连接建立完成消息；
连接建立单元402，用于根据所述接收单元401接收的RRC连接建立完成消息在所述第一锚节点和所述第一UE间建立RRC连接；
所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
优选地，所述接收单元401，还用于在所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，接收所述服务节点发送的所述第一UE的配置参数和UE标识。
优选地，所述接收单元401，具体用于接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述装置还包括：
识别单元403，用于根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述接收单元401，具体用于接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
所述接收单元401，还用于接收所述服务节点发送的第一指示信息；
所述装置还包括：
识别单元403，用于根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述接收单元401，具体用于接收所述服务节点发送的承载所述RRC连接建立完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息；所述装置还包括：
识别单元403，用于根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
优选地，所述接收单元401，还用于接收所述服务节点发送的第二指示信息；所述装置还包括：
识别单元403，用于根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
优选地，所述接收单元401，具体用于接收所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述装置还包括：
第一分组数据处理单元404，用于通过第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体；
第二分组数据处理单元405，用于通过第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
优选地，所述装置还包括：
发送单元406，用于向所述服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一无线链路控制RLC 层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
图5为本发明实施例四提供的RRC重连接装置的装置结构示意图，所述装置设置于锚节点上，所述装置包括：
接收单元501，用于接收第二服务节点发送的RRC连接重建完成消息；
连接重建立单元502，用于根据所述接收单元501接收的RRC连接重建完成消息在第一锚节点和第一UE间重新建立RRC连接；
所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
优选地，所述装置还包括：
第一发送单元503，用于在所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
所述接收单元501，具体用于接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
优选地，所述第一发送单元503具体用于：
当所述第一锚节点为所述第一UE建立RRC连接后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
所述第一锚节点接收所述第二服务节点发送的请求消息后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一UEID和NCC。
优选地，所述装置还包括：
信令发送单元504，用于所述第一发送单元503向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，当所述第一UE的RRC连接从所述第一锚节点离开后，向所述第二服务节点发送信令，所述信令用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
优选地，所述装置还包括：
第二发送单元505，用于在所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，向所述第二服务节点发送所述第一锚节点服务的相邻小区标识；
所述RRC连接重建请求消息中包括源小区标识，用以所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
优选地，所述接收单元501，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述RRC连接重建消息和第一指示信息；所述装置还包括：
识别单元506，用于根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述接收单元501，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述RRC 连接重建消息，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息；所述装置还包括：
识别单元506，用于根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
优选地，所述接收单元501，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述第一UE的配置参数。
优选地，所述接收单元501，具体用于接收第二服务节点发送的RRC连接重建完成消息，所述RRC连接重建完成消息中携带第二指示信息，或者承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息；所述装置还包括：
识别单元506，用于根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
优选地，所述接收单元501，还用于接收第二服务节点发送的第二指示信息；所述装置还包括：
识别单元506，用于根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
优选地，所述接收单元501，具体用于接收所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后，发送给所述第一锚节点的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述装置还包括：
第一分组数据处理单元507，用于通过所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体；
第二分组数据处理单元508，用于通过所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
优选地，所述装置还包括：
第三发送单元509，用于向所述第二服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
图6为本发明实施例五提供的服务节点结构示意图，所述服务节点包括：
发射机601；
接收机602；
处理器603；
所述发射机601，用于广播发送系统消息；
所述接收机602，用于接收第一用户设备UE根据所述系统消息发送的随机接入消息；
所述发射机601，还用于向所述第一UE发送随机接入响应消息；
所述接收机602，还用于接收所述第一UE发送的RRC连接请求消息；
所述处理器603，用于根据所述接收机602接收的所述RRC连接请求消息生成RRC连接建立消息；
所述发射机601，还用于将所述处理器603生成的所述RRC连接建立消息发送给所述第一UE；
所述接收机602，还用于接收所述第一UE发送的RRC连接建立完成消息；
所述发射机601，还用于将所述RRC连接建立完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
图7为本发明实施例六提供的服务节点结构示意图，所述服务节点包括：
发射机701；
接收机702；
处理器703；
所述发射机701，用于广播发送系统消息；
所述接收机702，用于接收第一用户设备UE根据所述系统消息发送的随机接入消息；
所述发射机701，还用于向所述第一UE发送随机接入响应消息；
所述接收机702，还用于接收所述第一UE发送的RRC连接重建请求消息；
所述处理器703，用于根据所述接收机702接收到的所述RRC连接重建请求消息生成RRC连接重建消息；
所述发射机701，还用于将所述处理器703生成的所述RRC连接重建消息发送给所述第一UE；
所述接收机702，还用于接收所述第一UE发送的RRC连接重建完成消息；
所述发射机701，还用于将所述RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
图8为本发明实施例七提供的锚节点结构示意图，所述锚节点包括：
接收机801；
处理器802；
所述接收机801，用于接收所述服务节点发送的RRC连接建立完成消息；
所述处理器802，用于根据所述接收机801接收的所述RRC连接建立完成消息在所述锚节点和第一UE间建立RRC连接；
所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
图9为本发明实施例八提供的锚节点结构示意图，所述锚节点包括：
接收机901；
处理器902；
所述接收机901，用于接收所述第二服务节点发送的RRC连接重建完成消息；
所述处理器902，用于根据所述接收机901接收的所述RRC连接重建完成消息在所述锚节点和第一UE间重新建立RRC连接；
所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
图10为本发明实施例九提供的服务节点侧的RRC连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为服务节点，如图10所示，所述方法具体包括：
步骤1001，服务节点广播发送系统消息。
其中,上述系统消息具体为RRC层的系统消息；服务节点可以向其覆盖范围内的所有与其建立无线连接的UE广播发送系统消息，也可以根据预定策略从上述与其建立无线连接的UE中选择出多个UE，向选择出的多个UE广播发送系统消息。
步骤1002，服务节点接收第一UE根据系统消息发送的随机接入消息。
本发明实施例中，上述系统消息中可以携带接入参数，第一UE可以根据接收到的系统消息中携带的接入参数向服务节点发送随机接入消息。
步骤1003，向第一UE发送随机接入响应消息。
其中，服务节点可以在接收到第一UE发送的随机接入消息后，向第一UE发送随机接入响应消息。
所述随机接入响应消息中可以包括为所述第一UE分配的小区无线网络临时标识(CRNTI，Cell Radio Network Temmporary Identify)。
步骤1004，服务节点接收第一UE发送的RRC连接请求消息。
上述RRC连接请求消息为SRB0承载的RRC消息，本发明实施例中，服务节点具有SRB0承载的RRC消息处理功能，服务节点在接收到上述RRC连接请求消息后，直接递交到RRC层实体进行处理。
步骤1005，服务节点根据RRC连接请求消息生成RRC连接建立消息，将RRC连接建立消息发送给第一UE。
本发明实施例中，服务节点根据RRC连接请求消息生成RRC连接建立消息，具体可以包括：服务节点根据接收到的包括所述第一UE的至少一个UE发送的RRC连接请求消息，从所述至少一个UE中选择出第一UE，根据第一UE的RRC连接请求消息生成第一UE的RRC连接建立消息。
此外，由于后续UE的配置参数需要通过SRB1下发，SRB1是在锚节点上的，因此锚节点需要获知UE的配置参数。该方法还可以包括：将所述第一UE的配置参数和所述第一UE的UE标识发送给所述第一锚节点，用以所述第一锚节点获知所述第一UE的配置参数。并且，所述第一锚节点还可以根据所述第一UE的配置参数识别所述第一UE为新接入的UE，为所述第一UE创建UE上下文(context)。UE context具体可以包括无线承载配置信息。上述UE标识具体可以为服务节点为UE分配的小区无线网络临时标识CRNTI，服务节点可以通过随机接入响应消息将CRNTI下发给UE。
本发明实施例中，服务节点可以将RRC连接建立消息发送给第一锚节点，在上述RRC连接建立消息中携带第一UE的配置参数，以便第一锚节点可以获取第一UE的配置参数；或者，服务节点可以不将RRC连接建立消息发送给第一锚节点，通过专门的消息将第一UE的配置参数发送给第一锚节点；或者，先不将第一UE的配置参数发送给第一锚节点，当确定第一锚节点需要第一UE的配置参数时再进行配置参数的发送。例如，第一锚节点需要为第一UE生成RRC消息或者需要获取第一UE的L1/L2的配置时。
其中,所述RRC连接建立消息中可以携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述第一指示信息 用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
第一UE的配置参数可以包括MAC层配置参数和物理层配置参数，例如，SRB-ToAddModList(OK？)参数、mac-MainConfig(OK)参数、PhysicalConfigDedicated(OK)参数、RLF-TimersAndConstants-r9(OK)参数、MeasSubframePatternPCell-r10(OK)参数、NeighCellsCRS-Info-r11(OK)参数。由于服务节点具有RLC层、MAC层和物理层，所以可以实现对UE的MAC层配置和物理层配置。第一UE的配置参数还可以包括srb-Identity参数、rlc-Config参数、logicalChannelConfig参数。
本发明实施例中，可以将第一指示信息与RRC连接建立消息一同发送给第一锚节点，也可以分别发送第一指示信息和RRC连接建立消息，因此还可以包括下面的步骤，服务节点将第一指示信息发送给第一锚节点，第一指示信息用于第一锚节点根据第一指示信息识别所述RRC连接建立消息为SRB0承载的RRC消息,并由第一锚节点的RRC层实体进行处理。第一指示信息可以为显式的信令指示或特定的消息名字，后者比如说SRB0RRCTransfer、InitialRRCTransfer。
步骤1006，服务节点接收第一UE发送的RRC连接建立完成消息。
其中，RRC连接建立完成消息为SRB1承载的RRC消息，服务节点接收第一UE发送的RRC连接建立完成消息后，由服务节点的第一RLC层实体处理后转发，服务节点的RRC层实体不做处理。
本发明实施例中，所述RRC连接建立完成消息中可以包括所述CRNTI，用以所述第一锚节点根据所述CRNTI判断所述第一UE是否发生无线链路失败RLF。
步骤1007，服务节点将RRC连接建立完成消息发送给第一锚节点，从而使得第一锚节点和第一UE建立RRC连接。
本发明实施例中，服务节点将RRC连接建立完成消息发送给第一锚节点，可以包括：服务节点在所述RRC连接建立完成消息中携带第二指示信息，或者在承载所述RRC连接建立完成消息的控制面信令消息中携带第二指示信息发送给第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。其中，所述第二指示信息具体可以为显式的信令指示或预设的消息名字。
服务节点还可以将上述第二指示信息单独发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
此外，所述方法还可以包括：所述服务节点的RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的PDCP PDU后发送给所述第一锚节点,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
所述方法还可以包括：所述服务节点接收所述第一锚节点发送的RRC消息对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一RLC层实体将所述SRB1承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
由上述处理过程可知，本发明实施例九中，不仅可以有效降低核心网信令负荷，并且，由于在为第一UE和第一锚节点建立RRC连接时，由服务节点处理RRC连接请求消息，并生成RRC连接建立消息，相对于由锚节点生成RRC连接建立消息，可以有效减少时延。
图11为本发明实施例十提供的服务节点侧的RRC连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为服务节点，在服务节点和锚节点间发送RRC消息时，还要发送用于指示SRB类型的指示信息，如图11所示，所述方法具体包括：
步骤1101，服务节点广播发送系统消息。
其中,上述系统消息具体为RRC层的系统消息；服务节点可以向其覆盖范围内的所有与其建立无线连接的UE广播发送系统消息，也可以根据预定策略从上述与其建立无线连接的UE中选择出多个UE，向选择出的多个UE广播发送系统消息。
步骤1102，服务节点接收第一UE根据系统消息发送的随机接入消息。
本发明实施例中，上述系统消息中可以携带接入参数，第一UE可以根据接收到的系统消息中携带的接入参数向服务节点发送随机接入消息。
步骤1103，向第一UE发送随机接入响应消息，所述随机接入响应消息中包括为第一UE分配的CRNTI。
步骤1104，服务节点接收第一UE发送的RRC连接请求消息。
上述RRC连接请求消息为SRB0承载的RRC消息，本发明实施例中，服务节点具有SRB0承载的RRC消息处理功能，服务节点在接收到上述RRC连接请求消息后，递交到RRC层实体进行处理。
步骤1105，服务节点根据RRC连接请求消息生成RRC连接建立消息，将RRC连接建立消息发送给第一UE和第一锚节点，RRC连接建立消息中包括所述CRNTI和第一UE的配置参数。
所述RRC连接建立消息中包括所述CRNTI，用以所述第一锚节点根据所述CRNTI判断所述第一UE是否发生无线链路失败RLF。
本发明实施例中，所述服务节点根据所述RRC连接请求消息生成RRC连接建立消息，包括：所述服务节点根据接收到的包括所述第一UE的至少一个UE发送的RRC连接请求消息，从所述至少一个UE中选择出所述第一UE，根 据所述第一UE的RRC连接请求消息生成所述第一UE的RRC连接建立消息。
所述RRC连接建立消息中包括所述第一UE的配置参数，用以所述第一锚节点根据所述第一UE的配置参数识别所述第一UE为新接入的UE，为所述第一UE创建UE context。
所述第一UE的配置参数可以包括MAC层配置参数和物理层配置参数，例如，SRB-ToAddModList(OK？)参数、mac-MainConfig(OK)参数、PhysicalConfigDedicated(OK)参数、RLF-TimersAndConstants-r9(OK)参数、MeasSubframePatternPCell-r10(OK)参数、NeighCellsCRS-Info-r11(OK)参数。由于服务节点具有RLC层、MAC层和物理层，所以可以实现对UE的MAC层配置和物理层配置。所述第一UE的配置参数还可以包括srb-Identity参数、rlc-Config参数、logicalChannelConfig参数。
由上可知，由服务节点处理RRC连接请求消息，并生成RRC连接建立消息，相对于由锚节点生成RRC连接建立消息，可以有效减少时延。
步骤1106，服务节点将第一指示信息发送给第一锚节点，用以第一锚节点根据第一指示信息识别RRC连接建立消息为SRB0承载的RRC消息,并由第一锚节点的RRC层实体进行处理。
本发明实施例中，可以将第一指示信息与所述RRC连接建立消息一同发送给第一锚节点，也可以分别发送第一指示信息和所述RRC连接建立消息，所述第一指示信息可以为显式的信令指示或预设的消息名字，后者比如说SRB0RRCTransfer、InitialRRCTransfer。
步骤1107，服务节点接收第一UE发送的RRC连接建立完成消息。
步骤1108，服务节点在RRC连接建立完成消息中携带第二指示信息发送给第一锚节点，第二指示信息用于第一锚节点根据第二指示信息识别RRC连接建立完成消息为SRB1承载的RRC消息，从而使得第一锚节点和第一UE建立RRC连接。
其中，还可以在承载所述RRC连接建立完成消息的控制面信令消息中携 带第二指示信息发送给第一锚节点，或者单独发送上述第二指示信息，所述第二指示信息具体可以为显式的信令指示或特定的消息名字。
步骤1109，服务节点的RLC层实体将第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的PDCP PDU后发送给第一锚节点,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
步骤1110，服务节点接收第一锚节点发送的RRC消息对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
由上述处理过程可知，本发明实施例中，对于服务节点和锚节点之间发送的RRC消息，还要发送用于指示SRB类型的指示信息，以便服务节点和锚节点根据SRB类型进行相应处理，从而实现RRC功能分离到服务节点和锚节点上。
图12为本发明实施例十一提供的服务节点侧的RRC重连接方法的流程图。该RRC重连接方法基于图1所示的网络架构，所述方法的执行主体为服务节点，如图12所示，所述方法具体包括：
步骤1201，第二服务节点广播发送系统消息。
所述系统消息具体为RRC层的系统消息。
本发明实施例中，第一UE可以先与第一服务节点建立连接，然后再与第二服务节点建立连接，即进行服务节点切换。或者，第一UE可以在初次与第 二服务节点建立连接后，再次与第二服务节点建立连接。
步骤1202，第二服务节点接收第一UE根据所述系统消息发送的随机接入消息。
步骤1203，向第一UE发送随机接入响应消息。
步骤1204，第二服务节点接收第一UE发送的RRC连接重建请求消息。
其中，RRC连接重建请求消息具体可以为第一UE发生RLF后，向第二服务节点发送的RRC连接重建请求消息。
步骤1205，第二服务节点根据RRC连接重建请求消息生成RRC连接重建消息，将RRC连接重建消息发送给第一UE。
本发明实施例中，第二服务节点还可以将RRC连接重建消息发送给第一锚节点，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
服务节点也可以将上述第一指示信息单独发送给第一锚节点。
该方法还可以包括：将第一UE的配置参数发送给第一锚节点，用以第一锚节点获知第一UE的配置参数。其中，上述配置参数至少包括MAC层配置和UE物理层配置。
本发明实施例中，第一锚节点可以根据第一UE的配置参数识别第一UE为新接入的UE，为所述第一UE创建UE context。
步骤1206，第二服务节点接收第一UE发送的RRC连接重建完成消息。
步骤1207，第二服务节点将RRC连接重建完成消息发送给第一锚节点，从而使得第一锚节点和第一UE重新建立RRC连接。
其中，第二服务节点将RRC连接重建完成消息发送给第一锚节点，具体可以包括：第二服务节点在所述RRC连接重建完成消息中携带第二指示信息，或者在承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信 息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为SRB1承载的RRC消息。
服务节点也可以将上述第二指示信息单独发送给第一锚节点。
在重新建立RRC连接之后，还可以包括：所述第二服务节点的RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
在重新建立RRC连接之后，还可以包括：第二服务节点接收所述第一锚节点发送的RRC消息对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一RLC层实体将所述SRB1承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
由上述处理过程可知，本发明实施例提供的RRC重连接方法，可以有效降低核心网信令负荷。
图13为本发明实施例十二提供的服务节点侧的RRC重连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为服务节点，第二服务节点根据锚节点下发的辅助参数指示UE根据上述辅助参数生成密钥，如图13所示，所述方法具体包括：
步骤1301，第二服务节点广播发送系统消息。
步骤1302，第二服务节点接收第一UE根据所述系统消息发送的随机接入消息。
步骤1303，向所述第一UE发送随机接入响应消息。
步骤1304，第二服务节点接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID。
步骤1305，第二服务节点获取与第一锚节点建立了RRC连接的第一UE的第一用户设备标识UEID和NCC。
本发明实施例中，第一锚节点可以将与第一锚节点建立过RRC连接的所有UE的UEID和NCC发送给所述第二服务节点；或者，第一锚节点从与其建立过RRC连接的所有UE中选择出某些UE，例如，选择某些位于小区边缘的UE，或者服务小区测量结果低于一个预定义门限的UE，将选择出的UE的UEID和NCC发送给所述第二服务节点。
其中，第一锚节点可以将与第一锚节点建立了RRC连接的所有UE的UEID和NCC发送给第二服务节点。具体地，由于UE进行RRC重连接的小区可能为原来的服务小区，也可能为该服务小区的相邻小区，因此，第一锚节点可以将与第一锚节点建立了RRC连接的所有UE的UEID和NCC发送给相邻小区的基站和原来的服务小区的基站。
第二服务节点获取与第一锚节点建立了RRC连接的第一UE的第一用户设备标识UEID和下一跳链路计数NCC，可以包括下面两种方式：第一种方式，当第一锚节点为第一UE建立RRC连接后，第二服务节点获取与第一锚节点建立了RRC连接的第一UE的第一UEID和NCC；第二种方式，第二服务节点向第一锚节点发送请求消息后，接收第一锚节点发送的建立了RRC连接的第一UE的第一UEID和NCC。
上述第二种方式中，具体可以在第二服务节点接收到第一UE的连接重建请求消息时，向第一锚节点发送请求消息。
所述方法还可以包括：当第一UE的RRC连接从第一锚节点离开后，第二服务节点接收第一锚节点发送的信令，用于第二服务节点根据所述信令释放第一UE的NCC。
上述第一UE的RRC连接从第一锚节点离开可以包含多种情况，例如，切 换或者第一UE转成空闲态。
步骤1306，第二服务节点根据第一UEID获得NCC，生成包含NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
步骤1307，第二服务节点接收第一UE发送的RRC连接重建完成消息。
步骤1308，将RRC连接重建完成消息发送给第一锚节点，从而使得第一锚节点和第一UE重新建立RRC连接。
由上述处理过程可知，本发明实施例的RRC重连接方法，不仅可以有效降低核心网信令负荷，并且，第二服务节点可以根据第一锚节点下发的辅助参数，生成RRC连接重建消息，通过RRC连接重建消息中携带的辅助参数，指示第一UE根据辅助参数推演新密钥。
图14为本发明实施例十三提供的服务节点侧的RRC重连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为服务节点，第二服务节点根据第一锚节点下发的辅助参数识别第一UE的源小区是否为第二服务节点所在小区的相邻小区或者是否为第二服务节点所在小区，当识别出第一UE的源小区为第二服务节点所在小区的相邻小区或第二服务节点所在小区时，指示第一UE使用原先的密钥，无需生成新密钥。如图14所示，所述方法具体包括：
步骤1401，第二服务节点广播发送系统消息。
所述系统消息具体为RRC层的系统消息。
步骤1402，第二服务节点接收第一UE根据所述系统消息发送的随机接入消息。
步骤1403，向第一UE发送随机接入响应消息。
步骤1404，第二服务节点接收第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括源小区标识。
其中，RRC连接重建请求消息具体可以为第一UE发生RLF后，向第二服 务节点发送的RRC连接重建请求消息。
步骤1405，第二服务节点获取第一锚节点服务的相邻小区标识。
其中，上述相邻小区为服务节点对应的小区的相邻小区。
步骤1406，第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
上述原先的密钥即第一UE原来使用的安全密钥，第四指示信息具体可以为一个新的指示，或者把NCC设置成NULL表示这个指示。
步骤1407，第二服务节点根据RRC连接重建请求消息生成RRC连接重建消息，将RRC连接重建消息发送给第一UE。
其中，步骤1406和步骤1407可以合并为一个步骤，将第四指示信息携带于RRC连接重建消息中发送给第一UE。
步骤1408，第二服务节点接收第一UE发送的RRC连接重建完成消息。
步骤1409，第二服务节点将RRC连接重建完成消息发送给第一锚节点，从而使得第一锚节点和第一UE重新建立RRC连接。
由上述处理过程可知，本发明实施例提供的RRC重连接方法中，不仅可以有效降低核心网信令负荷，并且，第二服务节点根据第一锚节点下发的辅助参数识别第一UE的源小区是否为第一锚节点服务的相邻小区或者第二服务节点所在小区，即识别第二服务节点与第一UE原来的服务节点是否都归属于第一锚节点，当识别出第一UE的源小区为第一锚节点服务的相邻小区或者第二服务节点所在小区时，即识别出第二服务节点与第一UE原来的服务节点都归属于第一锚节点时，指示第一UE使用原先的密钥，无需生成新密钥，可以有效缩短第一UE的处理时间。
图15为本发明实施例十四提供的锚节点侧的RRC连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为锚节点，如图 15所示，所述方法具体包括：
步骤1501，第一锚节点接收服务节点发送的RRC连接建立完成消息。
步骤1502，根据所述RRC连接建立完成消息在所述第一锚节点和第一UE间建立RRC连接。
其中，所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
具体地，当服务节点广播发送系统消息，并接收第一UE根据所述系统消息发送的随机接入消息，向所述第一UE发送随机接入响应消息后，接收所述第一UE发送的RRC连接请求消息，并根据所述RRC连接请求消息生成RRC连接建立消息发送给所述第一UE，接收所述第一UE发送的RRC连接建立完成消息后，向第一锚节点发送RRC连接建立完成消息。
所述方法还可以包括：所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数和UE标识，用以所述第一锚节点获知所述第一UE的配置参数。
其中，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数，可以包括：所述第一锚节点接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述方法还可以包括：所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
另外，上述第一指示信息也可以由服务节点单独发送给第一锚节点，相应地，第一锚节点还要接收服务节点发送的第一指示信息。
所述第一锚节点接收所述服务节点发送的所述RRC连接建立完成消息，可以包括：所述第一锚节点接收所述服务节点发送的承载所述RRC连接建立 完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
另外，上述第二指示信息也可以由服务节点单独发送给第一锚节点，相应地，第一锚节点还要接收服务节点发送的第二指示信息。
所述方法还可以包括：所述第一锚节点接收所述服务节点的RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
所述方法还可以包括：所述第一锚节点向所述服务节点发送RRC消息对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一RLC层实体将所述SRB1承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
由上述处理过程可知，本发明实施例中，不仅可以有效降低核心网信令负荷，并且，由于在为第一UE和第一锚节点建立RRC连接时，由服务节点处理RRC连接请求消息，并生成RRC连接建立消息，相对于由锚节点生成RRC连接建立消息，可以有效减少时延。
图16为本发明实施例十五提供的锚节点侧的RRC连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为锚节点，在服务节点和锚节点间发送RRC消息时，还要发送用于指示SRB类型的指示信息，如图16所示，所述方法具体包括：
步骤1601，服务节点接收第一UE发送的RRC连接建立完成消息之前，第一锚节点接收所述服务节点发送的所述第一UE的配置参数和UE标识，用以所述第一锚节点获知所述第一UE的配置参数。
其中，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数，可以包括：所述第一锚节点接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；所述方法还可以包括：所述第一锚节点接收所述服务节点发送的第一指示信息，所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为SRB0承载的RRC消息,利用所述第一锚节点的RRC层实体进行处理。
另外，上述第一指示信息还可以携带在所述RRC连接建立消息中，或者携带在承载所述RRC连接建立消息的控制面信令消息中。
步骤1602，第一锚节点接收所述服务节点发送的RRC连接建立完成消息。
步骤1603，根据所述RRC连接建立完成消息在所述第一锚节点和第一UE间建立RRC连接。
其中，所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
具体地，当服务节点广播发送系统消息，并接收第一用户设备UE根据所述系统消息发送的随机接入消息，向所述第一UE发送随机接入响应消息后，接收所述第一UE发送的RRC连接请求消息，并根据所述RRC连接请求消息生成RRC连接建立消息发送给所述第一UE，接收所述第一UE发送的RRC连接建立完成消息后，向第一锚节点发送RRC连接建立完成消息。
其中，所述第一锚节点接收所述服务节点发送的所述RRC连接建立完成消息，可以包括：所述第一锚节点接收所述服务节点发送的承载所述RRC连接建立完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息，所述第一锚节点 根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
所述第一锚节点还可以单独接收所述服务节点发送的第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
本发明实施例中，所述方法还可以包括：所述第一锚节点接收所述服务节点的RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
所述方法还可以包括：所述第一锚节点向所述服务节点发送RRC消息对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一RLC层实体将所述SRB1承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
由上述处理过程可知，本发明实施例中，对于服务节点和锚节点之间发送的RRC消息，还要发送用于指示SRB类型的指示信息，以便服务节点和锚节点根据SRB类型进行相应处理，从而实现RRC功能分离到服务节点和锚节点上。
图17为本发明实施例十六提供的锚节点侧的RRC重连接方法的流程图。该RRC重连接方法基于图1所示的网络架构，所述方法的执行主体为锚节点，如图17所示，所述方法具体包括：
步骤1701，第一锚节点接收第二服务节点发送的RRC连接重建完成消息。
步骤1702，根据所述RRC连接重建完成消息在所述第一锚节点和第一UE间重新建立RRC连接。
其中，所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
具体地，当第二服务节点广播发送系统消息，并接收第一用户设备UE根据所述系统消息发送的随机接入消息，向所述第一UE发送随机接入响应消息后，接收所述第一UE发送的RRC连接重建请求消息，并根据所述RRC连接重建请求消息生成RRC连接重建消息发送给所述第一UE，接收所述第一UE发送的RRC连接重建完成消息后，向第一锚节点发送RRC连接重建完成消息。
所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还可以包括，所述第一锚节点接收所述第二服务节点发送的所述RRC连接重建消息和第一指示信息，所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
或者，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还可以包括，所述第一锚节点接收所述第二服务节点发送的所述RRC连接重建消息，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，还可以包括：所述第一锚节点接收所述第二服务节点发送的所述第一UE的配置参数，用以所述第一锚节点获知所述第一UE的配置参数。
所述第一锚节点接收第二服务节点发送的RRC连接重建完成消息，可以包括：第一锚节点接收第二服务节点发送的RRC连接重建完成消息，所述RRC 连接重建完成消息中携带第二指示信息，或者承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为SRB1承载的RRC消息。
或者，所述方法还可以包括：所述第一锚节点接收第二服务节点发送的第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为SRB1承载的RRC消息。
所述方法还可以包括：
所述第一锚节点接收所述第二服务节点的RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的PDCP PDU后，发送给所述第一锚节点的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
所述方法还可以包括：
所述第一锚节点向所述第二服务节点发送RRC消息对应的PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一RLC层实体将所述SRB1承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
由上述处理过程可知，本发明实施例提供的RRC重连接方法，可以有效降低核心网信令负荷。
图18为本发明实施例十七提供的锚节点侧的RRC重连接方法的流程图。该RRC重连接方法基于图1所示的网络架构，所述方法的执行主体为锚节点，以便由第二服务节点根据锚节点下发的辅助参数指示UE根据上述辅助参数生 成密钥，如图18所示，所述方法具体包括：
步骤1801，在第二服务节点将RRC连接重建消息发送给第一UE之前，第一锚节点向第二服务节点发送与第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC。
本发明实施例中，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC，可以包括：
当所述第一锚节点为所述第一UE建立RRC连接后，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
所述第一锚节点接收所述第二服务节点发送的请求消息后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一UEID和NCC。
另外，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，所述方法还可以包括：当所述第一UE的RRC连接从所述第一锚节点离开后，所述第一锚节点向所述第二服务节点发送信令，用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
步骤1802，第一锚节点接收所述第二服务节点发送的RRC连接重建完成消息。
步骤1803，根据所述RRC连接重建完成消息在所述第一锚节点和第一UE间重新建立RRC连接。
其中，所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
具体地，当第二服务节点广播发送系统消息，并接收第一用户设备UE根 据所述系统消息发送的随机接入消息，向所述第一UE发送随机接入响应消息后，接收所述第一UE发送的RRC连接重建请求消息，并根据所述RRC连接重建请求消息生成RRC连接重建消息发送给所述第一UE，接收所述第一UE发送的RRC连接重建完成消息后，向第一锚节点发送RRC连接重建完成消息。
其中，第二服务节点接收所述第一UE发送的RRC连接重建请求消息，可以包括：所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID。
第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，可以包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
由上述处理过程可知，本发明实施例的RRC重连接方法，不仅可以有效降低核心网信令负荷，并且，第二服务节点可以根据第一锚节点下发的辅助参数，生成RRC连接重建消息，通过RRC连接重建消息中携带的辅助参数，指示第一UE根据辅助参数推演新密钥。
图19为本发明实施例十八提供的锚节点侧的RRC重连接方法的流程图。该RRC连接方法基于图1所示的网络架构，所述方法的执行主体为锚节点，以便由第二服务节点根据第一锚节点下发的辅助参数识别第一UE的源小区是否为第二服务节点所在小区的相邻小区或者是否为第二服务节点所在小区，当识别出第一UE的源小区为第二服务节点所在小区的相邻小区或第二服务节点所在小区时，指示第一UE使用原先的密钥，无需生成新密钥。如图19所示，所述方法具体包括：
步骤1901，第二服务节点将所述RRC连接重建消息发送给第一UE之前，所述第一锚节点向所述第二服务节点发送所述第一锚节点服务的相邻小区标识。
步骤1902，第一锚节点接收所述第二服务节点发送的RRC连接重建完成消息。
步骤1903，根据所述RRC连接重建完成消息在所述第一锚节点和第一UE间重新建立RRC连接。
其中，所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
具体地，当第二服务节点广播发送系统消息，并接收第一用户设备UE根据所述系统消息发送的随机接入消息，向所述第一UE发送随机接入响应消息后，接收所述第一UE发送的RRC连接重建请求消息，并根据所述RRC连接重建请求消息生成RRC连接重建消息发送给所述第一UE，接收所述第一UE发送的RRC连接重建完成消息后，向第一锚节点发送RRC连接重建完成消息。
其中，所述RRC连接重建请求消息中包括源小区标识，用以所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用KeNB来产生新密钥。
由上述处理过程可知，本发明实施例提供的RRC重连接方法中，不仅可以有效降低核心网信令负荷，并且，第二服务节点根据第一锚节点下发的辅助参数识别第一UE的源小区是否为第一锚节点服务的相邻小区或者第二服务节点所在小区，即识别第二服务节点与第一UE原来的服务节点是否都归属于第一锚节点，当识别出第一UE的源小区为第一锚节点服务的相邻小区或者第二服务节点所在小区时，即识别出第二服务节点与第一UE原来的服务节点都归属于第一锚节点时，指示第一UE使用原先的密钥，无需生成新密钥，可以有效缩短第一UE的处理时间。
专业人员应该还可以进一步意识到，结合本文中所公开的实施例描述的 各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (86)

  1. 一种无线资源控制RRC连接装置，所述装置设置于服务节点上，其特征在于，所述装置包括：
    发送单元，用于广播发送系统消息；
    接收单元，用于接收第一用户设备UE根据所述发送单元发送的系统消息发送的随机接入消息；
    所述发送单元，还用于根据所述接收单元接收的随机接入消息向所述第一UE发送随机接入响应消息；
    所述接收单元，还用于接收所述第一UE根据所述发送单元发送的随机接入响应消息发送的RRC连接请求消息；
    消息生成单元，用于根据所述接收单元接收的RRC连接请求消息生成RRC连接建立消息；
    所述发送单元，还用于将所述消息生成单元生成的RRC连接建立消息发送给所述第一UE；
    所述接收单元，还用于接收所述第一UE发送的RRC连接建立完成消息；
    所述发送单元，还用于将所述接收单元接收的RRC连接建立完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
  2. 如权利要求1所述的装置，其特征在于，所述消息生成单元包括：
    选择子单元，用于根据所述接收单元接收到的包括所述第一UE的至少一个UE发送的RRC连接请求消息，从所述至少一个UE中选择出所述第一UE；
    消息生成子单元，用于根据所述选择子单元选择出的所述第一UE的RRC连接请求消息生成所述第一UE的RRC连接建立消息。
  3. 如权利要求1或2所述的装置，其特征在于：
    所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接建立完成消息之前，将所述第一UE的配置参数和所述第一UE的UE标识发送给所述第一锚节点。
  4. 如权利要求3所述的装置，其特征在于，所述发送单元具体用于：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  5. 如权利要求3所述的装置，其特征在于，所述发送单元具体用于：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述发送单元还用于：将第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  6. 如权利要求1所述的装置，其特征在于，所述发送单元具体用于：在所述RRC连接建立完成消息中携带第二指示信息，或者在承载所述RRC连接建立完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
  7. 如权利要求1所述的装置，其特征在于，所述发送单元还用于：将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
  8. 如权利要求1至7中任一权利要求所述的装置，其特征在于，所述装置还包括：
    分组数据处理单元，用于通过无线链路控制RLC层实体将所述第一UE发 送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送给所述第一锚节点,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  9. 如权利要求1至8中任一权利要求所述的装置，其特征在于：
    所述接收单元，具体用于接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  10. 一种无线资源控制RRC重连接装置，所述装置设置于服务节点上，其特征在于，所述装置包括：
    发送单元，用于广播发送系统消息；
    接收单元，用于接收第一用户设备UE根据所述发送单元发送的系统消息发送的随机接入消息；
    所述发送单元，还用于根据所述接收单元接收的随机接入消息向所述第一UE发送随机接入响应消息；
    所述接收单元，还用于接收所述第一UE根据所述发送单元发送的随机接入响应消息发送的RRC连接重建请求消息；
    消息生成单元，用于根据所述接收单元接收的RRC连接重建请求消息生成RRC连接重建消息；
    所述发送单元，还用于将所述消息生成单元生成的RRC连接重建消息发送给所述第一UE；
    所述接收单元，还用于接收所述第一UE根据所述发送单元发送的RRC连接重建消息发送的RRC连接重建完成消息；
    所述发送单元，还用于将所述所述接收单元接收的RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
  11. 如权利要求10所述的装置，其特征在于，所述装置还包括：
    第一获取单元，用于在所述发送单元将所述RRC连接重建消息发送给所述第一UE之前，获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
    所述接收单元，具体用于接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
    所述消息生成单元，具体用于根据所述所述接收单元接收的所述第一UEID获得所述第一获取单元获取的所述NCC，生成包含所述NCC的RRC连接重建消息；
    所述发送单元，具体用于将所述消息生成单元生成的RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
  12. 如权利要求11所述的装置，其特征在于，所述第一获取单元具体用于：
    当所述第一锚节点为所述第一UE建立RRC连接后，获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
    向所述第一锚节点发送请求消息后，接收所述第一锚节点发送的建立了RRC连接的所述第一UE的第一UEID和NCC。
  13. 如权利要求11所述的装置，其特征在于，所述装置还包括：
    信令接收单元，用于所述第一获取单元获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，当所述第一UE的RRC连接从所述第一锚节点离开后，接收所述第一锚节点发送的信令；
    释放单元，用于根据所述信令接收单元接收的信令释放所述第一UE的NCC。
  14. 如权利要求10所述的装置，其特征在于，所述装置还包括：
    第二获取单元，用于所述发送单元将所述RRC连接重建消息发送给所述第一UE之前，获取所述第一锚节点服务的相邻小区标识；
    所述发送单元，还用于当根据所述接收单元接收的所述RRC连接重建请求消息中包括的源小区标识，识别出所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区时，向所述第一UE发送第四指示信息，所述第四指示信息用于指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
  15. 如权利要求10所述的装置，其特征在于，所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接重建完成消息之前，将所述RRC连接重建消息和第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  16. 如权利要求10所述的装置，其特征在于，所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接重建完成消息之前，将所述RRC连接重建消息发送给所述第一锚节点，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点 的RRC层实体进行处理。
  17. 如权利要求10所述的装置，其特征在于，所述发送单元，还用于在所述接收单元接收所述第一UE发送的RRC连接重建完成消息之前，将所述第一UE的配置参数发送给所述第一锚节点。
  18. 如权利要求10所述的装置，其特征在于，所述发送单元，具体用于在所述RRC连接重建完成消息中携带第二指示信息，或者在承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  19. 如权利要求10所述的装置，其特征在于，所述发送单元，还用于将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  20. 如权利要求10所述的装置，其特征在于，所述装置还包括：
    分组数据处理单元，用于通过无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  21. 如权利要求10所述的装置，其特征在于，所述接收单元，具体用于接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE, 或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  22. 一种无线资源控制RRC连接装置，所述装置设置于锚节点上，其特征在于，所述装置包括：
    接收单元，用于接收所述服务节点发送的RRC连接建立完成消息；
    连接建立单元，用于根据所述接收单元接收的RRC连接建立完成消息在所述第一锚节点和所述第一UE间建立RRC连接；
    所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
  23. 如权利要求22所述的装置，其特征在于，所述接收单元，还用于在所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，接收所述服务节点发送的所述第一UE的配置参数和UE标识。
  24. 如权利要求23所述的装置，其特征在于，所述接收单元，具体用于接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述装置还包括：
    识别单元，用于根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  25. 如权利要求23所述的装置，其特征在于，所述接收单元，具体用于接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述接收单元，还用于接收所述服务节点发送的第一指示信息；
    所述装置还包括：
    识别单元，用于根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  26. 如权利要求22所述的装置，其特征在于，所述接收单元，具体用于接收所述服务节点发送的承载所述RRC连接建立完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息；所述装置还包括：
    识别单元，用于根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
  27. 如权利要求22所述的装置，其特征在于，所述接收单元，还用于接收所述服务节点发送的第二指示信息；所述装置还包括：
    识别单元，用于根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
  28. 如权利要求22所述的装置，其特征在于，所述接收单元，具体用于接收所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述装置还包括：
    第一分组数据处理单元，用于通过第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体；
    第二分组数据处理单元，用于通过第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  29. 如权利要求22至28中任一权利要求所述的装置，其特征在于，所述装置还包括：
    发送单元，用于向所述服务节点发送RRC消息对应的分组数据汇聚协议 分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  30. 一种无线资源控制RRC重连接装置，所述装置设置于锚节点上，其特征在于，所述装置包括：
    接收单元，用于接收第二服务节点发送的RRC连接重建完成消息；
    连接重建立单元，用于根据所述接收单元接收的RRC连接重建完成消息在第一锚节点和第一UE间重新建立RRC连接；
    所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
  31. 如权利要求30所述的装置，其特征在于，所述装置还包括：
    第一发送单元，用于在所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
    所述接收单元，具体用于接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
    所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
  32. 如权利要求31所述的装置，其特征在于，所述第一发送单元具体用于：
    当所述第一锚节点为所述第一UE建立RRC连接后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
    所述第一锚节点接收所述第二服务节点发送的请求消息后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一UEID和NCC。
  33. 如权利要求31所述的装置，其特征在于，所述装置还包括：
    信令发送单元，用于所述第一发送单元向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，当所述第一UE的RRC连接从所述第一锚节点离开后，向所述第二服务节点发送信令，所述信令用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
  34. 如权利要求30所述的装置，其特征在于，所述装置还包括：
    第二发送单元，用于在所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，向所述第二服务节点发送所述第一锚节点服务的相邻小区标识；
    所述RRC连接重建请求消息中包括源小区标识，用以所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
  35. 如权利要求30所述的装置，其特征在于，所述接收单元，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述RRC连接重建消息和第一指示信息；所述装置还包括：
    识别单元，用于根据所述第一指示信息识别所述RRC连接重建消息为信 令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  36. 如权利要求30所述的装置，其特征在于，所述接收单元，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述RRC连接重建消息，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息；所述装置还包括：
    识别单元，用于根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  37. 如权利要求30所述的装置，其特征在于，所述接收单元，还用于在所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，接收所述第二服务节点发送的所述第一UE的配置参数。
  38. 如权利要求30所述的装置，其特征在于，所述接收单元，具体用于接收第二服务节点发送的RRC连接重建完成消息，所述RRC连接重建完成消息中携带第二指示信息，或者承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息；所述装置还包括：
    识别单元，用于根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  39. 如权利要求30所述的装置，其特征在于，所述接收单元，还用于接收第二服务节点发送的第二指示信息；所述装置还包括：
    识别单元，用于根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  40. 如权利要求30所述的装置，其特征在于，所述接收单元，具体用于接收所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组 数据单元PDCP PDU后，发送给所述第一锚节点的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述装置还包括：
    第一分组数据处理单元，用于通过所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体；
    第二分组数据处理单元，用于通过所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  41. 如权利要求30所述的装置，其特征在于，所述装置还包括：
    第三发送单元，用于向所述第二服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  42. 一种服务节点，其特征在于，所述服务节点包括：
    发射机；
    接收机；
    处理器；
    所述发射机，用于广播发送系统消息；
    所述接收机，用于接收第一用户设备UE根据所述系统消息发送的随机接入消息；
    所述发射机，还用于向所述第一UE发送随机接入响应消息；
    所述接收机，还用于接收所述第一UE发送的RRC连接请求消息；
    所述处理器，用于根据所述接收机接收的所述RRC连接请求消息生成RRC连接建立消息；
    所述发射机，还用于将所述处理器生成的所述RRC连接建立消息发送给所述第一UE；
    所述接收机，还用于接收所述第一UE发送的RRC连接建立完成消息；
    所述发射机，还用于将所述RRC连接建立完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
  43. 一种服务节点，其特征在于，所述服务节点包括：
    发射机；
    接收机；
    处理器；
    所述发射机，用于广播发送系统消息；
    所述接收机，用于接收第一用户设备UE根据所述系统消息发送的随机接入消息；
    所述发射机，还用于向所述第一UE发送随机接入响应消息；
    所述接收机，还用于接收所述第一UE发送的RRC连接重建请求消息；
    所述处理器，用于根据所述接收机接收到的所述RRC连接重建请求消息生成RRC连接重建消息；
    所述发射机，还用于将所述处理器生成的所述RRC连接重建消息发送给所述第一UE；
    所述接收机，还用于接收所述第一UE发送的RRC连接重建完成消息；
    所述发射机，还用于将所述RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
  44. 一种锚节点，其特征在于，所述锚节点包括：
    接收机；
    处理器；
    所述接收机，用于接收所述服务节点发送的RRC连接建立完成消息；
    所述处理器，用于根据所述接收机接收的所述RRC连接建立完成消息在 所述锚节点和第一UE间建立RRC连接；
    所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
  45. 一种锚节点，其特征在于，所述锚节点包括：
    接收机；
    处理器；
    所述接收机，用于接收所述第二服务节点发送的RRC连接重建完成消息；
    所述处理器，用于根据所述接收机接收的所述RRC连接重建完成消息在所述锚节点和第一UE间重新建立RRC连接；
    所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
  46. 一种无线资源控制RRC连接方法，其特征在于，所述方法包括：
    服务节点广播发送系统消息；
    所述服务节点接收第一用户设备UE根据所述系统消息发送的随机接入消息；
    向所述第一UE发送随机接入响应消息；
    所述服务节点接收所述第一UE发送的RRC连接请求消息；
    所述服务节点根据所述RRC连接请求消息生成RRC连接建立消息，将所述RRC连接建立消息发送给所述第一UE；
    所述服务节点接收所述第一UE发送的RRC连接建立完成消息；
    所述服务节点将所述RRC连接建立完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE建立RRC连接。
  47. 如权利要求46所述的方法，其特征在于，
    所述服务节点根据所述RRC连接请求消息生成RRC连接建立消息，包括： 所述服务节点根据接收到的包括所述第一UE的至少一个UE发送的RRC连接请求消息，从所述至少一个UE中选择出所述第一UE，根据所述第一UE的RRC连接请求消息生成所述第一UE的RRC连接建立消息。
  48. 如权利要求46或47所述的方法，其特征在于，所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，还包括：
    将所述第一UE的配置参数和所述第一UE的UE标识发送给所述第一锚节点。
  49. 如权利要求48所述的方法，其特征在于，所述将所述第一UE的配置参数发送给所述第一锚节点，包括：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  50. 如权利要求48所述的方法，其特征在于，所述将所述第一UE的配置参数发送给所述第一锚节点，包括：将所述RRC连接建立消息发送给所述第一锚节点，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述方法还包括：所述服务节点将第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  51. 如权利要求46所述的方法，其特征在于，所述服务节点将所述RRC连接建立完成消息发送给第一锚节点，包括：所述服务节点在所述RRC连接建立完成消息中携带第二指示信息，或者在承载所述RRC连接建立完成消息的控制面信令消息中携带第二指示信息发送给第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消 息为信令无线承载SRB1承载的RRC消息。
  52. 如权利要求46所述的方法，其特征在于，所述方法还包括：所述服务节点将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为信令无线承载SRB1承载的RRC消息。
  53. 如权利要求46至52中任一权利要求所述的方法，其特征在于，所述方法还包括：所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送给所述第一锚节点,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  54. 如权利要求46至53中任一权利要求所述的方法，其特征在于，所述方法还包括：所述服务节点接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括信令无线承载SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  55. 一种无线资源控制RRC重连接方法，其特征在于，所述方法包括：
    第二服务节点广播发送系统消息；
    所述第二服务节点接收第一用户设备UE根据所述系统消息发送的随机接入消息；
    向所述第一UE发送随机接入响应消息；
    所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息；
    所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE；
    所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息；
    所述第二服务节点将所述RRC连接重建完成消息发送给第一锚节点，从而使得所述第一锚节点和所述第一UE重新建立RRC连接。
  56. 如权利要求55所述的方法，其特征在于，所述将所述RRC连接重建消息发送给所述第一UE之前，所述方法还包括：
    所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
    所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，包括：所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
    所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
  57. 如权利要求56所述的方法，其特征在于，所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC，包括：
    当所述第一锚节点为所述第一UE建立RRC连接后，所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
    所述第二服务节点向所述第一锚节点发送请求消息后，接收所述第一锚 节点发送的建立了RRC连接的所述第一UE的第一UEID和NCC。
  58. 如权利要求56所述的方法，其特征在于，所述第二服务节点获取与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，所述方法还包括：
    当所述第一UE的RRC连接从所述第一锚节点离开后，所述第二服务节点接收所述第一锚节点发送的信令，用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
  59. 如权利要求55所述的方法，其特征在于，所述将所述RRC连接重建消息发送给所述第一UE之前，所述方法还包括：
    所述第二服务节点获取所述第一锚节点服务的相邻小区标识；
    所述RRC连接重建请求消息中包括源小区标识，所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，所述第四指示信息用于指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
  60. 如权利要求55所述的方法，其特征在于，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第二服务节点将所述RRC连接重建消息和第一指示信息发送给所述第一锚节点，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  61. 如权利要求55所述的方法，其特征在于，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第二服务节点将所述RRC连接重建消息发送给所述第一锚节点，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第 一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  62. 如权利要求55所述的方法，其特征在于，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，还包括：将所述第一UE的配置参数发送给所述第一锚节点。
  63. 如权利要求55所述的方法，其特征在于，所述第二服务节点将所述RRC连接重建完成消息发送给所述第一锚节点，包括：所述第二服务节点在所述RRC连接重建完成消息中携带第二指示信息，或者在承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  64. 如权利要求55所述的方法，其特征在于，所述方法还包括：所述服务节点将第二指示信息发送给所述第一锚节点，所述第二指示信息用于所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  65. 如权利要求55所述的方法，其特征在于，所述方法还包括：
    所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述RRC消息用于所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述RRC消息用于所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  66. 如权利要求55所述的方法，其特征在于，所述方法还包括：
    所述第二服务节点接收所述第一锚节点发送的RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或 SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  67. 一种无线资源控制RRC连接方法，其特征在于，所述方法包括：
    第一锚节点接收服务节点发送的RRC连接建立完成消息；
    根据所述RRC连接建立完成消息在所述第一锚节点和第一UE间建立RRC连接；
    所述RRC连接建立完成消息为所述第一UE根据所述服务节点发送的RRC连接建立消息生成的所述RRC连接建立完成消息，并将所述RRC连接建立完成消息发送给所述服务节点。
  68. 如权利要求67所述的方法，其特征在于，所述方法还包括：
    在所述服务节点接收所述第一UE发送的RRC连接建立完成消息之前，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数和UE标识。
  69. 如权利要求68所述的方法，其特征在于，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数，包括：所述第一锚节点接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第一UE的配置参数；
    所述RRC连接建立消息中携带第一指示信息，或者承载所述RRC连接建立消息的控制面信令消息中携带第一指示信息，所述方法还包括：所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  70. 如权利要求68所述的方法，其特征在于，所述第一锚节点接收所述服务节点发送的所述第一UE的配置参数，包括：所述第一锚节点接收所述服务节点发送的所述RRC连接建立消息，所述RRC连接建立消息中包括所述第 一UE的配置参数；
    所述方法还包括：所述第一锚节点接收所述服务节点发送的第一指示信息，所述第一锚节点根据所述第一指示信息识别所述RRC连接建立消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  71. 如权利要求67所述的方法，其特征在于，所述第一锚节点接收所述服务节点发送的所述RRC连接建立完成消息，包括：所述第一锚节点接收所述服务节点发送的承载所述RRC连接建立完成消息的控制面信令消息，所述RRC连接建立完成消息中携带第二指示信息，或者所述控制面信令消息中携带第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
  72. 如权利要求67所述的方法，其特征在于，所述方法还包括：所述第一锚节点接收所述服务节点发送的第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接建立完成消息为SRB1承载的RRC消息。
  73. 如权利要求67所述的方法，其特征在于，所述方法还包括：所述第一锚节点接收所述服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接建立完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后发送的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接建立完成消息为SRB1承载的RRC消息；所述第一锚节点中的第一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  74. 如权利要求67至73中任一权利要求所述的方法，其特征在于，所述方法还包括：所述第一锚节点向所述服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC消息用于所述服务节点的第一无线链路控 制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
  75. 一种无线资源控制RRC重连接方法，其特征在于，所述方法包括：
    第一锚节点接收第二服务节点发送的RRC连接重建完成消息；
    根据所述RRC连接重建完成消息在所述第一锚节点和第一UE间重新建立RRC连接；
    所述RRC连接重建完成消息为所述第一UE根据所述第二服务节点发送的RRC连接重建消息生成的所述RRC连接重建完成消息，并将所述RRC连接重建完成消息发送给所述第二服务节点。
  76. 如权利要求75所述的方法，其特征在于，所述方法还包括：
    在所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；
    所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，包括：所述第二服务节点接收所述第一UE发送的RRC连接重建请求消息，所述RRC连接重建请求消息中包括所述第一UEID；
    所述第二服务节点根据所述RRC连接重建请求消息生成RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，包括：所述第二服务节点根据所述第一UEID获得所述NCC，生成包含所述NCC的RRC连接重建消息，将所述RRC连接重建消息发送给所述第一UE，用以所述第一UE根据所述NCC推演新密钥。
  77. 如权利要求76所述的方法，其特征在于，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC，包括：
    当所述第一锚节点为所述第一UE建立RRC连接后，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC；或者，
    所述第一锚节点接收所述第二服务节点发送的请求消息后，向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一UEID和NCC。
  78. 如权利要求76所述的方法，其特征在于，所述第一锚节点向所述第二服务节点发送与所述第一锚节点建立了RRC连接的所述第一UE的第一用户设备标识UEID和下一跳链路计数NCC之后，所述方法还包括：
    当所述第一UE的RRC连接从所述第一锚节点离开后，所述第一锚节点向所述第二服务节点发送信令，所述信令用于所述第二服务节点根据所述信令释放所述第一UE的NCC。
  79. 如权利要求75所述的方法，其特征在于，所述第二服务节点将所述RRC连接重建消息发送给所述第一UE之前，所述方法还包括：
    所述第一锚节点向所述第二服务节点发送所述第一锚节点服务的相邻小区标识；
    所述RRC连接重建请求消息中包括源小区标识，用以所述第二服务节点识别所述源小区为所述第一锚节点服务的相邻小区或者所述源小区为当前小区，则向所述第一UE发送第四指示信息，指示所述第一UE使用原先的密钥，或者指示所述第一UE密钥不发生改变，或者指示所述第一UE使用演进型基站eNodeB的密钥KeNB来产生新密钥。
  80. 如权利要求75所述的方法，其特征在于，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第一锚节点接收所述第二服务节点发送的所述RRC连接重建消息和第一指示信息，所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  81. 如权利要求75所述的方法，其特征在于，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，所述方法还包括，所述第一锚节点接收所述第二服务节点发送的所述RRC连接重建消息，所述RRC连接重建消息中携带第一指示信息，或者承载所述RRC连接重建消息的控制面信令消息中携带第一指示信息，所述第一指示信息用于所述第一锚节点根据所述第一指示信息识别所述RRC连接重建消息为信令无线承载SRB0承载的RRC消息,并由所述第一锚节点的RRC层实体进行处理。
  82. 如权利要求75所述的方法，其特征在于，所述第二服务节点接收所述第一UE发送的RRC连接重建完成消息之前，还包括：所述第一锚节点接收所述第二服务节点发送的所述第一UE的配置参数。
  83. 如权利要求75所述的方法，其特征在于，所述第一锚节点接收第二服务节点发送的RRC连接重建完成消息，包括：第一锚节点接收第二服务节点发送的RRC连接重建完成消息，所述RRC连接重建完成消息中携带第二指示信息，或者承载所述RRC连接重建完成消息的控制面信令消息中携带第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  84. 如权利要求75所述的方法，其特征在于，所述方法还包括：所述第一锚节点接收第二服务节点发送的第二指示信息，所述第一锚节点根据所述第二指示信息识别所述RRC连接重建完成消息为信令无线承载SRB1承载的RRC消息。
  85. 如权利要求75所述的方法，其特征在于，所述方法还包括：
    所述第一锚节点接收所述第二服务节点的无线链路控制RLC层实体将所述第一UE发送的包括所述RRC连接重建完成消息的RRC消息处理为对应的分组数据汇聚协议分组数据单元PDCP PDU后，发送给所述第一锚节点的所述PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息，所述RRC连接重建完成消息为SRB1承载的RRC消息；所述第一锚节点中的第 一PDCP层实体将所述SRB1承载的RRC消息处理后发送给RRC层实体,或者，所述第一锚节点中的第二PDCP层实体将所述SRB2承载的RRC消息处理后发送给所述RRC层实体。
  86. 如权利要求75所述的方法，其特征在于，所述方法还包括：
    所述第一锚节点向所述第二服务节点发送RRC消息对应的分组数据汇聚协议分组数据单元PDCP PDU,所述RRC消息包括SRB1承载的RRC消息或SRB2承载的RRC消息；所述RRC消息用于所述第二服务节点的第一无线链路控制RLC层实体将所述SRB1承载的RRC消息处理后通过媒体接入控制MAC层和物理层发送给所述第一UE,或者，所述RRC消息用于所述第二服务节点的第二RLC层实体将所述SRB2承载的RRC消息处理后通过MAC层和物理层发送给所述第一UE。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2781234C2 (ru) * 2017-11-20 2022-10-07 Шарп Кабусики Кайся Оборудование пользователя и способ управления связью для оборудования пользователя
US11736987B2 (en) 2016-12-23 2023-08-22 Sharp Kabushiki Kaisha User mobility method and device

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10530747B2 (en) * 2017-01-13 2020-01-07 Citrix Systems, Inc. Systems and methods to run user space network stack inside docker container while bypassing container Linux network stack
WO2019035645A2 (en) * 2017-08-14 2019-02-21 Samsung Electronics Co., Ltd. METHOD AND SYSTEM FOR MANAGING PACKET DUPLICATION AND RECOVERING RB IN A WIRELESS COMMUNICATION SYSTEM
WO2019036861A1 (zh) * 2017-08-21 2019-02-28 北京小米移动软件有限公司 无线承载的指示方法及装置
KR102394622B1 (ko) * 2017-09-06 2022-05-09 삼성전자주식회사 사물 인터넷 환경에서 상향링크 전송 타이밍을 제어하기 위한 장치 및 방법
CN109803455B (zh) * 2017-11-16 2022-12-02 中兴通讯股份有限公司 连接控制、业务处理方法及装置
CN112040565B (zh) * 2018-02-11 2022-04-12 Oppo广东移动通信有限公司 移动通信系统、方法及装置
JP7267701B2 (ja) 2018-09-20 2023-05-02 シャープ株式会社 端末装置、基地局装置、方法、および、集積回路
CN110958644B (zh) * 2018-09-27 2021-09-03 维沃移动通信有限公司 一种终端设备能力信息处理方法及相关设备
CN112312583B (zh) * 2019-07-29 2022-10-04 大唐移动通信设备有限公司 一种信息接收、发送方法、终端及网络设备
CN111311873B (zh) * 2020-02-24 2021-08-20 赣州光通电子有限公司 用于智能家庭的实时传输安防报警信息的方法及系统
EP4218276A4 (en) * 2020-12-23 2024-05-01 ZTE Corporation KEY TRANSFER PROCEDURE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867984A (zh) * 2010-02-26 2010-10-20 新邮通信设备有限公司 长期演进增强系统中的切换方法、施主基站和中继节点
WO2013166330A1 (en) * 2012-05-02 2013-11-07 Qualcomm Incorporated Apparatus and method for a connected mode with reduced signaling

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2435153A (en) 2006-02-08 2007-08-15 Nec Corp Modified connection setup for E-UTRA radio resource control
KR100895180B1 (ko) 2006-04-14 2009-04-24 삼성전자주식회사 Ｒｒｃ 연결설정 방법 및 이를 위한 장치
KR101167523B1 (ko) 2008-01-17 2012-07-20 노키아 코포레이션 무선 시스템에서의 적응적 멀티-레이트 코덱 비트 레이트 제어
KR101578934B1 (ko) * 2009-03-23 2015-12-18 삼성전자주식회사 이동통신시스템에서 랜덤 액세스를 위한 임시 식별자 할당 장치 및 방법
EP2404463B1 (en) * 2009-04-21 2018-02-21 LG Electronics Inc. Method to facilitate user equipment handoff within a packet data communication system
WO2011016195A1 (ja) * 2009-08-06 2011-02-10 パナソニック株式会社 無線通信端末および電波状況の測定結果報告方法
US9609688B2 (en) * 2010-04-05 2017-03-28 Qualcomm Incorporated Methods and apparatus to facilitate relay startup and radio link failure (RLF) handling
CN102223658B (zh) * 2010-04-19 2016-06-29 中兴通讯股份有限公司 一种处理无线链路失败的方法和中继节点
KR101929307B1 (ko) * 2011-04-11 2018-12-17 삼성전자 주식회사 Ｃｓｇ 셀에서 단말이 셀 재선택 우선 순위를 효율적으로 제어하는 방법 및 장치
JP5893859B2 (ja) * 2011-06-29 2016-03-23 株式会社Ｎｔｔドコモ 移動通信方法、移動局及び無線基地局
US9264979B2 (en) * 2011-08-11 2016-02-16 Intel Corporation Extended access barring
US9088922B2 (en) * 2011-10-10 2015-07-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for mobile relay handover
US20130114572A1 (en) * 2011-11-04 2013-05-09 Mo-Han Fong Uplink synchronization with multiple timing advances in a wireless communication environment
JP5838741B2 (ja) * 2011-11-10 2016-01-06 富士通株式会社 通信システム、通信方法、及び基地局
TW201342821A (zh) * 2011-12-08 2013-10-16 Interdigital Patent Holdings 交叉連結建立方法及裝置
CN103582164B (zh) * 2012-08-06 2017-04-12 华为技术有限公司 无线链路重建立方法、ue及系统
EP2888921B1 (en) 2012-08-23 2018-02-28 Telefonaktiebolaget LM Ericsson (publ) Radio resource control connection establishment
WO2014098496A1 (ko) * 2012-12-19 2014-06-26 엘지전자 주식회사 다중 액세스 네트워크를 지원하는 무선 통신 시스템에서 선택적 트래픽 처리 방법 및 이를 지원하는 장치
US10375606B2 (en) * 2012-12-28 2019-08-06 Nec Corporation Radio communication system, radio station, radio terminal, communication control method, and computer-readable medium
US9877351B2 (en) 2013-01-18 2018-01-23 Kyocera Corporation Mobile communication system, user terminal, and base station
US9439112B2 (en) * 2013-02-01 2016-09-06 Mediatek, Inc. Low overhead mobility in local area wireless network
WO2014129783A1 (en) * 2013-02-22 2014-08-28 Samsung Electronics Co., Ltd. Method and system for providing simultaneous connectivity between multiple e-nodebs and user equipment
US9357460B2 (en) * 2013-03-22 2016-05-31 Sharp Kabushiki Kaisha Systems and methods for establishing multiple radio connections
EP2983405B1 (en) 2013-04-05 2018-01-03 Kyocera Corporation Transmissions between radio base stations and dual connectivity release
EP2835925B1 (en) * 2013-08-09 2018-08-08 Panasonic Intellectual Property Corporation of America Efficient Status Reporting for UEs in dual connectivity during mobility
US9949246B2 (en) * 2013-09-27 2018-04-17 Telefonaktiebolaget Lm Ericsson (Publ) Device to device (D2D) control information relay
EP3852413A1 (en) * 2013-11-01 2021-07-21 Huawei Technologies Co., Ltd. Key processing method in dual connectivity mode and device
JPWO2015140848A1 (ja) * 2014-03-18 2017-04-06 日本電気株式会社 制御装置、基地局装置、無線端末、及び隣接関係テーブルの更新方法
CN103987124B (zh) * 2014-05-07 2017-09-26 电信科学技术研究院 一种配置调度的方法及设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867984A (zh) * 2010-02-26 2010-10-20 新邮通信设备有限公司 长期演进增强系统中的切换方法、施主基站和中继节点
WO2013166330A1 (en) * 2012-05-02 2013-11-07 Qualcomm Incorporated Apparatus and method for a connected mode with reduced signaling

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Solution for reduction of signalling load towards core network", 3GPP TSG-RAN WG2 MEETING #83, R2-132853, 23 August 2013 (2013-08-23), XP050718563 *
NOKIA CORPORATION ET AL.: "Mobility enhancement for non- CA capable UE", 3GPP TSG-RAN WG2 MEETING #83, R2-132416, 23 August 2013 (2013-08-23), XP050718166 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11736987B2 (en) 2016-12-23 2023-08-22 Sharp Kabushiki Kaisha User mobility method and device
RU2781234C2 (ru) * 2017-11-20 2022-10-07 Шарп Кабусики Кайся Оборудование пользователя и способ управления связью для оборудования пользователя

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