WO2016183713A1 - 一种无线资源连接建立方法、用户设备和基站 - Google Patents

一种无线资源连接建立方法、用户设备和基站 Download PDF

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Publication number
WO2016183713A1
WO2016183713A1 PCT/CN2015/079033 CN2015079033W WO2016183713A1 WO 2016183713 A1 WO2016183713 A1 WO 2016183713A1 CN 2015079033 W CN2015079033 W CN 2015079033W WO 2016183713 A1 WO2016183713 A1 WO 2016183713A1
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WO
WIPO (PCT)
Prior art keywords
base station
cell
connection establishment
access cell
information
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PCT/CN2015/079033
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English (en)
French (fr)
Inventor
郑潇潇
杨利
郭轶
徐小英
庞伶俐
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
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/079033 priority Critical patent/WO2016183713A1/zh
Priority to CN201580026304.8A priority patent/CN106471845B/zh
Priority to EP15892094.2A priority patent/EP3291604B1/en
Publication of WO2016183713A1 publication Critical patent/WO2016183713A1/zh
Priority to US15/811,998 priority patent/US20180077612A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • 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
    • 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
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for establishing a radio resource connection, a user equipment, and a base station.
  • the UE When a user equipment (UE) in a communication system needs to initiate a service in a certain cell, the UE initiates a physical random access channel (PRACH) process to the resident cell to apply for resource establishment.
  • PRACH physical random access channel
  • the signaling connection then establishes the service.
  • the network side may allocate a resource to the UE to establish a connection according to the data, such as the service, the network load, and the measurement result, and may also redirect or switch to another cell.
  • the radio resource control protocol RRC
  • the frequency point is specified in the RRC connection reject RRC connection reject message, and the UE re-resident in the designated search cell. To the searched cell, thereby initiating RRC establishment within the cell. It can be seen that there is a long delay and excessive signaling in the current radio resource connection establishment process.
  • the invention provides a method for establishing a radio resource connection, a user equipment and a base station, which can reduce delay and signaling in the process of establishing a radio resource connection.
  • the present invention provides a method for establishing a radio resource connection, including:
  • the UE initiates a connection establishment request message to the first base station to which the currently camped resident cell belongs;
  • the UE receives a connection setup message carrying an air interface resource of the access cell, where the access cell is a camped cell that is not the UE identified by the first base station;
  • the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell.
  • the UE is to the currently camped resident cell Before the associated first base station initiates the connection establishment request message, the method further includes:
  • system information block SIB information or a dedicated message broadcast by the first base station receives, by the UE, system information block SIB information or a dedicated message broadcast by the first base station, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • the UE performs measurement on the multiple cells according to the frequency point information, and obtains measurement results of the multiple cells.
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • the UE that is configured to receive the connection establishment message that carries the air interface resource of the access cell includes:
  • the UE monitors the at least one candidate cell, and receives a connection establishment message carrying the air interface resource of the access cell in the access cell in the at least one candidate cell.
  • connection establishment request message carries at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • connection establishment message of the air interface resource entering the cell including:
  • the UE receives a connection setup message that is sent by the first base station and carries an air interface resource of the access cell, where the access cell belongs to the second base station.
  • the air interface resource of the access cell when the access cell belongs to the second base station, the air interface resource of the access cell And acquiring, by the second base station, the resource request sent by the first base station, and replying to the first base station.
  • connection establishment message further includes at least one of the following:
  • mapping information of the radio bearer RB The mapping information of the radio bearer RB, the configuration information of the RB, the timing adjustment TA information for performing uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the present invention provides a method for establishing a radio resource connection, including:
  • the first base station When the first base station identifies that the UE is not in the camping cell to establish a connection, the first base station acquires an air interface resource of an access cell used for performing connection establishment of the UE;
  • the first base station sends a connection setup message carrying the air interface resource of the access cell to the UE, so that the UE feeds back a connection establishment acknowledgement message to the base station to which the access cell belongs in the access cell. .
  • the first base station acquires the air interface resource of the access cell that is used to perform the connection establishment of the UE, and includes:
  • the first base station selects a cell that is adjacent to the camping cell in the first base station as an access cell for performing connection establishment of the UE, and acquires an air interface resource of the access cell.
  • the first base station acquires the air interface resource of the access cell that is used to perform the connection establishment of the UE, and includes:
  • the first base station sends a resource request to the second base station
  • the first base station receives a response message that is returned by the second base station in response to the resource request, where the response message carries the air interface resource of the access cell, and the access cell is used by the second base station.
  • the first base station receives a user Before the device UE initiates a connection establishment request message in the camping cell where the UE is currently camped, the method further includes:
  • the first base station broadcasts system information block SIB information or a dedicated message, where the SIB
  • the information or dedicated message includes frequency point information of multiple cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • connection establishment request message carries Have at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • connection establishment message further includes at least one of the following:
  • mapping information of the radio bearer RB The mapping information of the radio bearer RB, the configuration information of the RB, the timing adjustment TA information for uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the present invention provides a UE, including: an initiating unit, a first receiving unit, and a feedback unit, where:
  • the initiating unit is configured to initiate a connection establishment request message to the first base station to which the currently camped resident cell belongs;
  • the receiving unit is configured to receive a connection setup message that carries an air interface resource of the access cell, where the access cell is a camped cell that is not the UE that is identified by the first base station;
  • the feedback unit is configured to feed back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell.
  • the UE further includes:
  • a second receiving unit configured to receive system information block SIB information or a dedicated message broadcast by the first base station, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • a measuring unit configured to perform measurement on the multiple cells according to the frequency point information, to obtain the multiple Measurement results of individual cells
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • the first receiving unit is configured to monitor the at least one candidate cell, and at least A connection establishment message carrying an air interface resource of the access cell is received in the access cell in a candidate cell.
  • connection establishment request message carries at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the first receiving unit is used by the first receiving unit Receiving, by the first base station, a connection setup message carrying an air interface resource of an access cell, where the access cell belongs to the first base station;
  • the first receiving unit is configured to receive a connection setup message that is sent by the first base station and that carries an air interface resource of the access cell, where the access cell belongs to the second base station.
  • the air interface resource of the access cell when the access cell belongs to the second base station, the air interface resource of the access cell And acquiring, by the second base station, the resource request sent by the first base station, and replying to the first base station.
  • the RRC connection setup message further includes at least one of the following:
  • mapping information of the radio bearer RB The mapping information of the radio bearer RB, the configuration information of the RB, the timing adjustment TA information for performing uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the present invention provides a base station, including: a first receiving unit, an acquiring unit, and a sending unit, where:
  • the first receiving unit is configured to receive a connection establishment request message initiated by the user equipment UE in a camped cell where the UE currently camps;
  • the acquiring unit is configured to: when the base station identifies that the UE is not in the connection establishment of the camping cell, acquire an air interface resource of an access cell used for performing connection establishment of the UE;
  • the sending unit is configured to send, to the UE, a connection setup message that carries the air interface resource of the access cell, so that the UE feeds back a connection establishment to the base station to which the access cell belongs in the access cell. Confirm the message.
  • the acquiring unit is configured to select a cell that is adjacent to the camping cell in the base station as an access cell that performs connection establishment of the UE, And acquiring the air interface resource of the access cell.
  • the acquiring unit is configured to send a resource request to the target base station, and receive a response message that is returned by the target base station in response to the resource request,
  • the response message carries the air interface resource of the access cell, where the access cell is a cell under the target base station for performing connection establishment of the UE.
  • the base station further includes:
  • a broadcast unit configured to broadcast system information block SIB information or a dedicated message, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the base station to select an access cell corresponding to the UE; or
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the base station to identify an access cell corresponding to the UE, and the at least one candidate cell is the UE.
  • the UE selected from the plurality of cells according to the measurement result is capable of performing at least one candidate cell establishing a connection.
  • connection establishment request message carries Have at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • connection establishment message further includes at least one of the following:
  • mapping information of the radio bearer RB The mapping information of the radio bearer RB, the configuration information of the RB, the timing adjustment TA information for uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the present invention provides a UE, including: a processor, a network interface, a memory, and a communication bus, wherein the communication bus is configured to implement connection communication between the processor, the network interface, and the memory.
  • the processor executes a program stored in the memory for implementing the following method:
  • a connection establishment confirmation message is fed back to the base station to which the access cell belongs in the access cell.
  • the method before the executing, by the processor, the program that initiates the connection establishment request message to the first base station to which the currently camped cell belongs, the method is further configured to:
  • SIB information or a dedicated message broadcast by the first base station, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, the at least one The candidate cell is at least one candidate cell that the UE selects from the plurality of cells according to the measurement result, and is capable of establishing a connection.
  • a program that is performed by the processor to receive a connection establishment message that carries an air interface resource of an access cell including:
  • the at least one candidate cell is monitored, and a connection establishment message carrying the air interface resource of the access cell is received in the access cell in the at least one candidate cell.
  • connection establishment request message carries at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the performing, by the processor, the connection setup message carrying the air interface resource of the access cell Programs including:
  • the air interface resource of the access cell when the access cell belongs to the second base station, the air interface resource of the access cell And acquiring, by the second base station, the resource request sent by the first base station, and replying to the first base station.
  • connection establishment message further includes at least one of the following:
  • mapping information of the radio bearer RB The mapping information of the radio bearer RB, the configuration information of the RB, the timing adjustment TA information for performing uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the present invention provides a base station, including: a processor, a network interface, a memory, and a communication bus, wherein the communication bus is configured to implement the connection between the processor, the network interface, and the memory.
  • the processor executes a program stored in the memory for implementing the following method:
  • the performing, by the processor, the acquiring, by the processor, the air interface resource of the access cell for performing the connection establishment of the UE includes:
  • the executing, by the processor, the acquiring, by the processor, the air interface resource of the access cell for performing the connection establishment of the UE includes:
  • the processor is performing the receiving
  • the user equipment UE is further configured to execute the following procedure before the program of the connection establishment request message initiated in the camped cell where the UE currently camps:
  • Broadcasting system information block SIB information or a dedicated message, wherein the SIB information or the dedicated message includes frequency point information of a plurality of cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the base station to select an access cell corresponding to the UE; or
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the base station to identify an access cell corresponding to the UE, and the at least one candidate cell is the UE.
  • the UE selected from the plurality of cells according to the measurement result is capable of performing at least one candidate cell establishing a connection.
  • connection establishment request message carries Have at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • connection establishment message further includes at least one of the following:
  • mapping information of the radio bearer RB The mapping information of the radio bearer RB, the configuration information of the RB, the timing adjustment TA information for uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the user equipment UE initiates a connection establishment request message to the first base station to which the currently camped resident cell belongs; the UE receives a connection establishment message carrying the air interface resource of the access cell, where the access The cell is a camped cell that is not the UE that is identified by the first base station; and the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell. Therefore, when the cell handover needs to be performed, the UE does not need to initiate the establishment of the radio resource connection again, so that the present invention can reduce the delay and signaling in the process of establishing the radio resource connection compared with the prior art.
  • FIG. 1 is a schematic flowchart of a method for establishing a radio resource connection according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another method for establishing a radio resource connection according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart diagram of another method for establishing a radio resource connection according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another method for establishing a radio resource connection according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another UE according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another UE according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for establishing a wireless resource connection according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:
  • the UE initiates a connection establishment request message to the first base station to which the currently camped resident cell belongs.
  • the UE when it needs to request a resource or initiate a service to the currently camped camping cell, it may initiate a connection establishment request message to the first base station to which the currently camped camping cell belongs, for example, an RRC connection request message. (RRC connection request message).
  • RRC connection request message RRC connection request message
  • the UE receives a connection setup message that carries an air interface resource of the access cell, where the access cell is a camped cell that is not the UE identified by the first base station.
  • the first base station may determine whether the UE can perform radio resource connection establishment (eg, RRC establishment) in the camping cell, for example, when the connection establishment request message carries a service type, A base station may determine whether the connection of the camped cell is established according to the load condition of the camped cell and the type of service reported by the UE, or the first base station may determine whether the connection is established in the camped cell according to the load condition of the camped cell.
  • RRC establishment radio resource connection establishment
  • the first base station may identify according to the report information to identify the cell that is the access cell. Or the first base station may further identify the cell that is the access cell according to the pre-stored UE's capability information, service type, or network load and other related policy information. That is, the connection establishment or chain establishment is performed in the access cell.
  • the establishment message may be sent to the UE by using an RRC connection setup message (RRC connection setup message).
  • connection establishment message received by the UE may be sent by the first base station, or may be sent by the base station to which the access cell belongs.
  • the camped cell that is not the UE may be any cell other than the camped cell.
  • the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell.
  • connection establishment confirmation message may be an RRC connection setup complete message of the L3 (RRC layer), or may be confirmation information of another L1 (physical layer) or L2 (MAC layer or RLC layer). For example: MAC control element.
  • step 103 may be to use the air interface resource feedback connection establishment confirmation message of the access cell.
  • the air interface resource may optionally include: a radio link control (RLC) configuration, where the RLC configuration may include an RLC mode, an RLC SN length, an RLC POLL timer, and the like;
  • RLC radio link control
  • the air interface resource may further include: the logical channel configuration includes a logical channel priority, a guaranteed rate, a logical channel grouping information, and the like;
  • the air interface resource may further include: Packet Data Convergence Protocol (PDCP) configuration information, where the PDCP configuration information may include a drop timer, a sequence number configuration, a header compression configuration, and the like;
  • PDCP Packet Data Convergence Protocol
  • the air interface resource may further include: media access control (MAC) configuration information, where the MAC configuration information may include an uplink HARQ maximum retransmission number, a periodic BSR reporting timer, a TA valid time, and scheduling information SR sent. Cycle, available power PHR transmission period, DRX parameters, etc.
  • MAC media access control
  • the air interface resource may further include: a semi-static scheduling configuration, an uplink and a downlink semi-static period, and Number of passes;
  • the foregoing air interface resources may further include: dedicated physical configuration PDSCH channel power offset, PUCCH resource and ACK/NACK repetition times, PUSCH power offset and frequency modulation mode, uplink power control configuration, CQI configuration, etc.; RLF timer, measurement format Wait;
  • connection establishment message may include, in addition to the air interface resource, the TA information, that is, the time that the UE uplink needs to be adjusted for the last transmission, and the ID of the UE that uniquely identifies the UE in the access cell.
  • the UE when the UE needs to go to the cell other than the current camping cell to initiate the establishment of the radio resource connection, the UE does not need to re-initiate the connection establishment request message, but directly establishes the connection establishment initiated in the current camped cell.
  • the request message completes the RRC establishment of the cell outside the currently camped cell. Thereby, the delay and signaling in the wireless resource connection process can be reduced.
  • the foregoing UE may be any smart device that specifically initiates an RRC establishment, such as a mobile phone, a tablet computer, an in-vehicle device, and a wearable device.
  • the UE initiates a connection setup request message to the first base station to which the currently camped resident cell belongs; the UE receives a connection setup message carrying the air interface resource of the access cell, where the access cell is The camping cell that is not the UE identified by the first base station; the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell. Therefore, when the cell handover needs to be performed, the UE does not need to initiate the establishment of the radio resource connection again, so that the present invention can reduce the delay and signaling in the process of establishing the radio resource connection compared with the prior art.
  • FIG. 2 is a schematic flowchart of another method for establishing a radio resource connection according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • the UE initiates a connection establishment request message to the first base station to which the currently camped resident cell belongs.
  • the RRC connection request message may carry the report information, for example, the measurement result, the frequency point capability information of the UE, and the service type, so that the first base station may further identify the report message based on the report information carried in the RRC connection request message.
  • the UE receives a connection setup message that carries the air interface resource of the access cell, where the access cell is a camped cell that is not the UE identified by the first base station.
  • step 202 may include:
  • the UE may establish connection establishment in the access cell adjacent to the camping cell and belonging to the first base station.
  • the air interface resource of the access cell may be selected by the first base station.
  • step 202 may include:
  • the UE receives the connection setup message that is sent by the first base station and carries the air interface resource of the access cell, where the access cell belongs to the second base station.
  • the air interface resource of the access cell may be obtained by the second base station in response to the resource request sent by the first base station, and is returned to the first base station.
  • the UE may perform connection establishment on the access cell of the second base station adjacent to the first base station, for example, when the first base station identifies that the UE is not suitable for connection in any cell under the first base station.
  • the first base station may send a request to the neighboring second base station to request the cell under the second base station to provide connection establishment of the UE.
  • the first base station identifies that the UE is not connected to the camping cell, and the first base station may send a resource request (resource request message) to the neighboring second base station, and the second base station receives the request.
  • a return response message (resource response message), where the response message carries the air interface resource of the access cell, where the access cell may be the first base station, according to the measurement result reported by the UE, a cell under the second base station for performing connection establishment of the UE.
  • the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell.
  • the method may further include the following steps:
  • the UE receives system information block (SIB) information or a dedicated message that is broadcast by the first base station, where the SIB information or the dedicated message includes frequency point information of multiple cells.
  • SIB system information block
  • the UE performs measurement on the multiple cells according to the frequency point information, and obtains measurement results of the multiple cells.
  • connection establishment request message carries a measurement result that may have the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE; or
  • the connection setup request carries a measurement that may have at least one candidate cell of the plurality of cells
  • the measurement result is used by the first base station to identify an access cell corresponding to the UE, and the at least one candidate cell is configured by the UE selected by the UE from the multiple cells according to a measurement result. Establishing at least one candidate cell for the connection.
  • the measurement result of the at least one candidate cell may be in a bitmap reporting manner, for example, camping on the cell frequency point F1 or the cell ID cell1 in the SIB information, and the frequency point F2 or the cell ID cell2 of the other three neighboring cells.
  • the measurement result reported by the UE may include 101.
  • the foregoing SIB information or the dedicated message may further include measurement information, for example, a preset threshold, so that when the UE performs measurement on the multiple cells, the UE may select a cell whose measurement result has a signal quality higher than a preset threshold.
  • the candidate cell can ensure the signal quality of the access cell.
  • the UE capability may be combined, and the candidate cell, that is, the UE, is supported, and the signal quality of the measurement result is higher than the preset threshold.
  • step 202 may include:
  • the UE monitors the at least one candidate cell, and receives a connection establishment message carrying the air interface resource of the access cell in the access cell in the at least one candidate cell.
  • the UE may receive a connection setup message in the access cell.
  • the base station to which the access cell belongs sends a connection establishment message to the UE.
  • connection establishment request message may further carry at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the frequency capability and the measurement result may not be obtained from the SIB or the dedicated message.
  • the UE performs measurement on a preset cell or another cell such as a neighboring cell to obtain a measurement result of the cell.
  • the frequency point capability and the measurement result supported by the UE may be used by the first base station to select an access cell of the UE, that is, the first base station may select an access cell of the UE according to the frequency capability and/or measurement result supported by the UE.
  • connection establishment message may further include at least one of the following:
  • Radio bearer (RB) mapping information RB configuration information
  • TA Timing Advance
  • connection establishment message does not include the above information is also achievable.
  • the mapping information and the configuration information of the RB may be sent by the base station to which the access cell belongs.
  • the mapping information and configuration information of the RB may be the second.
  • the base station sends the message to the UE directly through the connection setup message, or the second base station sends the mapping information and the configuration information of the RB to the first base station, and then the first base station sends the message to the UE through the connection setup message; or the access cell
  • the mapping information and the configuration information of the foregoing RB may be directly sent by the first base station to the UE by using a connection establishment message.
  • the configuration information may include: Radio Link Control (RLC) configuration information, Packet Data Convergence Protocol (PDCP) configuration information, and Medium Access Control (MAC) configuration. information.
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • MAC Medium Access Control
  • the TA information used to adjust the uplink transmission may also be sent by the base station to which the access cell belongs.
  • the TA information may be the second base station.
  • the connection setup message is directly sent to the UE, or the second base station sends the TA information to the first base station, and then the first base station sends the message to the UE through the connection setup message, or the first base station passes the timing between the two base stations.
  • the difference is calculated that the TA information is sent to the UE by the first base station; or the access cell belongs to the first base station, and the TA information may be directly sent by the first base station to the UE by using a connection setup message.
  • the TA information may be used by the UE to determine an uplink transmission timing, that is, the UE may determine, according to the TA information, a time for reporting an RRC setup confirmation message.
  • the UE can also maintain a set of cell TA information, so that the UE can use the stored TA information to access any one of the group of cells before the predetermined timer expires.
  • the UE may further send the RRC setup acknowledgement message by using the first base station to send a TA value in the camped cell, that is, the UE may further send a TA value to the camped cell according to the first base station.
  • the base station feeds back the above RRC setup confirmation message.
  • the signature sequence information of the PRACH may be the signature sequence information of the access cell, so that the UE can use the signature sequence information to access the cell for non-contention random access.
  • the access cell and the camped cell may be the same-frequency cell, or may be an inter-frequency cell, or may be different access sub-networks in the evolved network, for example, the access cell and the foregoing resident
  • the cells may be macro coverage cells and micro station cells, respectively.
  • FIG. 3 is a schematic flowchart of another method for establishing a radio resource connection according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
  • the first base station receives a connection establishment request message initiated by the UE in a camped cell where the UE currently camps.
  • the first base station When the first base station identifies that the UE is not in the camping cell to establish a connection, the first base station acquires an air interface resource of an access cell used to perform connection establishment of the UE.
  • Step 302 may be: when it is determined that the UE needs to perform cell handover, or the UE currently needs to perform service in another cell, the first base station acquires an air interface resource of the access cell used for performing connection establishment of the UE.
  • the air interface resource may optionally include: a radio link control (RLC) configuration, where the RLC configuration may include an RLC mode, an RLC SN length, an RLC POLL timer, and the like;
  • RLC radio link control
  • the air interface resource may further include: the logical channel configuration includes a logical channel priority, a guaranteed rate, a logical channel grouping information, and the like;
  • the air interface resource may further include: Packet Data Convergence Protocol (PDCP) configuration information, where the PDCP configuration information may include a drop timer, a sequence number configuration, a header compression configuration, and the like;
  • PDCP Packet Data Convergence Protocol
  • the air interface resource may further include: media access control (MAC) configuration information, where the MAC configuration information may include an uplink HARQ maximum retransmission number, a periodic BSR reporting timer, a TA valid time, and scheduling information SR sent. Cycle, available power PHR transmission period, DRX parameters, etc.
  • MAC media access control
  • the air interface resource may further include: a semi-persistent scheduling configuration, an uplink and a downlink semi-static period, and a number of processes;
  • the foregoing air interface resources may further include: dedicated physical configuration PDSCH channel power offset, PUCCH resource and ACK/NACK repetition times, PUSCH power offset and frequency modulation mode, uplink power control configuration, CQI configuration, etc.; RLF timer, measurement format Wait;
  • connection establishment message may include, in addition to the air interface resource, the TA information, that is, the time that the UE uplink needs to be adjusted for the last transmission, and the ID of the UE that uniquely identifies the UE in the access cell.
  • the first base station may determine whether the UE can establish a connection in the camped cell, and determine which access cell to go to, for example, when the connection establishment request is performed.
  • the message carries the report information, for example, the measurement result, the frequency point capability information, or the service type
  • the first base station may identify according to the report information to identify whether the UE establishes a connection in the camped cell, if not in the foregoing camp.
  • the first base station may identify, according to the foregoing report information, the pre-stored capability information of the UE, the service type, or the network load, the associated access cell, that is, the first base station is the UE. Select the access cell.
  • the first base station acquiring the air interface resource of the access cell for performing the connection establishment of the UE may include:
  • the first base station selects a cell that is adjacent to the camping cell in the first base station as an access cell for performing connection establishment of the UE, and acquires an air interface resource of the access cell.
  • the first base station when the first base station recognizes that the UE can establish a connection in a cell of the first base station, the first base station can use the cell as the access cell and obtain the air interface resource of the cell.
  • the first base station may further select, according to the frequency point capability information and the service type of the UE, that the first base station lower frequency point is supported by the UE and provides the service.
  • a cell of a type of service is used as the above-mentioned access cell.
  • the first base station acquiring the air interface resource of the access cell for performing the connection establishment of the UE may include:
  • the first base station sends a resource request to the second base station
  • the first base station receives a response message that is returned by the second base station in response to the resource request, where the response message carries the air interface resource of the access cell, and the access cell is used by the second base station.
  • the first base station may identify, according to the report information carried in the connection establishment request message, for example, the measurement result, the UE frequency point capability information, and the service type, and identify a certain cell in the second base station as the access cell corresponding to the UE, and The base station sends a resource request.
  • the second base station may be a base station to which the access cell corresponding to the UE selected by the first base station according to the report information carried in the RRC connection request message belongs.
  • the foregoing resource request may further carry the foregoing measurement result, or may also carry the UE frequency point capability information and the service type in the RRC request message, so that the second base station may select the air interface resource of the access cell.
  • the first base station sends, to the UE, a connection setup message that carries the air interface resource of the access cell, so that the UE feeds back a connection establishment acknowledgement message to the base station to which the access cell belongs in the access cell. .
  • step 301 the following steps may be further included:
  • the first base station broadcasts SIB information or a dedicated message, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • the UE may perform measurement on the multiple cells according to the frequency point information, and obtain measurement results of multiple cells, or the UE may further
  • the UE selected in the cell is capable of making at least one candidate cell to establish a connection.
  • the connection initiation request message initiated by the UE may include the measurement result of the foregoing multiple cells, or may include the measurement result of the at least one candidate cell, so that the first base station selects the access cell corresponding to the UE according to the reported measurement result.
  • connection establishment request message may further carry at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the foregoing frequency capability and measurement result may not be obtained from the foregoing SIB or a dedicated message, for example, the UE performs measurement on a preset cell or other cells such as a neighboring cell, to The measurement result of the cell is obtained.
  • the frequency point capability and the measurement result supported by the UE may be used by the first base station to select an access cell of the UE, that is, the first base station may select an access cell of the UE according to the frequency capability and/or measurement result supported by the UE.
  • connection establishment message may further include at least one of the following:
  • Mapping information of RBs may be used to determine whether RBs are mapped to Physical layer resource.
  • configuration information of RBs may be used to determine whether TA is uplink transmission.
  • TA information for uplink transmission
  • physical layer resource information for uplink transmission
  • signature sequence information of PRACH for uplink transmission
  • connection establishment message does not include the above information is also achievable.
  • the mapping information and the configuration information of the RB may be sent by the base station to which the access cell belongs.
  • the mapping information and configuration information of the RB may be the second.
  • the base station sends the message to the UE directly through the connection setup message, or the second base station sends the mapping information and the configuration information of the RB to the first base station, and then the first base station sends the message to the UE through the connection setup message; or the access cell
  • the mapping information and the configuration information of the foregoing RB may be directly sent by the first base station to the UE by using a connection establishment message.
  • the configuration information may include: Radio Link Control (RLC) configuration information, Packet Data Convergence Protocol (PDCP) configuration information, and Medium Access Control (MAC) configuration. information.
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • MAC Medium Access Control
  • the TA information used to adjust the uplink transmission may also be sent by the base station to which the access cell belongs.
  • the TA information may be the second base station.
  • the connection setup message is directly sent to the UE, or the second base station sends the TA information to the first base station, and then the first base station sends the message to the UE through the connection setup message, or the first base station passes the timing between the two base stations.
  • the difference is calculated that the TA information is sent to the UE by the first base station; or the access cell belongs to the first base station, and the TA information may be directly sent by the first base station to the UE by using a connection setup message.
  • the TA information may be used by the UE to determine an uplink transmission timing, that is, the UE may determine, according to the TA information, a time for reporting an RRC setup confirmation message.
  • the UE can also maintain a set of cell TA information, so that the UE can use the stored TA information to access any one of the group of cells before the predetermined timer expires.
  • the UE may further send the TA in the camped cell by using the foregoing first base station.
  • the value is sent to the RRC setup confirmation message, that is, the UE may further feed back the RRC setup confirmation message to the base station to which the access cell belongs according to the first base station transmitting the TA value in the camped cell.
  • the signature sequence information of the PRACH may be the signature sequence information of the access cell, so that the UE can use the signature sequence information to access the cell for non-contention random access.
  • the access cell and the camped cell may be the same frequency cell, or may be an inter-frequency cell, or may be different access sub-networks in the evolved network, for example, the access cell and the foregoing resident
  • the reserved cells may be macro coverage cells and micro station cells, respectively.
  • the first base station receives a connection establishment request message initiated by the user equipment UE in the camped cell where the UE currently camps; and when the first base station identifies that the UE is not in the camped cell, And establishing, by the first base station, the air interface resource of the access cell for performing the connection establishment of the UE; the first base station sending, to the UE, a connection establishment message carrying the air interface resource of the access cell So that the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell.
  • the delay and signaling in the process of establishing the radio resource connection can be reduced.
  • FIG. 4 is a schematic diagram of another method for establishing a radio resource connection according to an embodiment of the present invention. As shown in FIG. 4,
  • the UE receives the SIB information broadcast by the first base station.
  • the SIB information may include access information of the camped cell.
  • the UE sends an access in the camping cell, and sends an RRC connection request message to the first base station to which the camping cell belongs.
  • the RRC connection request message may carry the report information, for example, the frequency capability supported by the UE, the service type, and the measurement result.
  • the first base station determines whether the UE performs RRC establishment in the camped cell.
  • the first base station may determine whether to establish a link in the camped cell or the neighboring cell under the local base station or the neighboring base station NodeB2 according to the UE reporting information or the UE pre-stored UE capability and the network load and other related policy information.
  • the community is built.
  • the second base station sends a resource request message.
  • the second base station returns a resource response message to the first base station in response to the resource request message, where the resource response message may include a corresponding air interface resource.
  • the first base station sends a corresponding RRC connection setup message to the UE.
  • the UE After receiving the RRC connection setup message, the UE sends a feedback message to the specified cell according to the content of the RRC connection setup message.
  • the designated cell is a cell specified in the RRC connection setup message, and the feedback message may be an RRC connection setup complete message of L3, or may be other L1 or L2 acknowledgement information.
  • the UE receives the SIB information broadcast by the first base station; the UE sends an access in the camping cell, and sends an RRC connection request message to the first base station to which the camping cell belongs; the first base station determines whether the UE is in the camped cell.
  • the second base station when the first base station determines that the UE needs to perform RRC establishment in the second base station, the second base station sends a resource request message to the second base station, and the second base station returns a resource response message to the first base station in response to the resource request message, where
  • the resource response message may include a corresponding air interface resource; the first base station sends a corresponding RRC connection setup message to the UE; after receiving the RRC connection setup message, the UE sends a feedback message to the designated cell according to the content of the RRC connection setup message. In this way, the UE may initiate an RRC connection request message to the first base station in the camping cell.
  • the first base station may request the second base station to obtain the air interface resource of the access cell. And the first base station sends the air interface resource to the UE by using the RRC connection setup message, so that the UE establishes an RRC connection by using the RRC connection request message in the camping cell to implement the RRC connection in the access cell under the second base station, so that the UE does not need to be connected again.
  • the RRC connection process is initiated in the inbound cell, so that the delay and signaling of the RRC establishment process can be reduced.
  • the device embodiment of the present invention is used to perform the method for implementing the first to fourth embodiments of the present invention.
  • the device embodiment of the present invention is used to perform the method for implementing the first to fourth embodiments of the present invention.
  • the device embodiment of the present invention is used to perform the method for implementing the first to fourth embodiments of the present invention.
  • Only parts related to the embodiment of the present invention are shown, and the specific technical details are not disclosed. Please refer to Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in FIG. 5, the method includes: an initiating unit 51, a first receiving unit 52, and a feedback unit 53, wherein:
  • the initiating unit 51 is configured to initiate a connection establishment request message to the first base station to which the currently camped resident cell belongs.
  • the UE when it needs to request a resource or initiate a service to the currently camped camping cell, it may initiate a connection establishment request message to the first base station to which the currently camped camping cell belongs, for example, an RRC connection request message. (RRC connection request message).
  • RRC connection request message RRC connection request message
  • the receiving unit 52 is configured to receive a connection setup message that carries the air interface resource of the access cell, where the access cell is a camped cell that is not the UE identified by the first base station.
  • the first base station may determine whether the UE can perform radio resource connection establishment (eg, RRC establishment) in the camping cell, for example, when the connection establishment request message carries a service type, A base station may determine whether the connection of the camped cell is established according to the load condition of the camped cell and the type of service reported by the UE, or the first base station may determine whether the connection is established in the camped cell according to the load condition of the camped cell.
  • RRC establishment radio resource connection establishment
  • the first base station may identify according to the report information to identify the cell that is the access cell.
  • the first base station may further identify the cell that is the access cell according to the pre-stored UE's capability information, service type, or network load and other related policy information, that is, establish connection or establish a link in the access cell.
  • the establishment message may be sent to the UE by using an RRC connection setup message (RRC connection setup message).
  • connection establishment message received by the UE may be sent by the first base station, or may be sent by the base station to which the access cell belongs.
  • the camped cell that is not the UE may be any cell other than the camped cell.
  • the feedback unit 53 is configured to feed back to the base station to which the access cell belongs in the access cell. A confirmation message is then established.
  • connection establishment confirmation message may be an RRC connection setup complete message of the L3 (RRC layer), or may be confirmation information of another L1 (physical layer) or L2 (MAC layer or RLC layer). For example: MAC control element.
  • the air interface resource may optionally include: a radio link control (RLC) configuration, where the RLC configuration may include an RLC mode, an RLC SN length, an RLC POLL timer, and the like;
  • RLC radio link control
  • the air interface resource may further include: the logical channel configuration includes a logical channel priority, a guaranteed rate, a logical channel grouping information, and the like;
  • the air interface resource may further include: Packet Data Convergence Protocol (PDCP) configuration information, where the PDCP configuration information may include a drop timer, a sequence number configuration, a header compression configuration, and the like;
  • PDCP Packet Data Convergence Protocol
  • the air interface resource may further include: media access control (MAC) configuration information, where the MAC configuration information may include an uplink HARQ maximum retransmission number, a periodic BSR reporting timer, a TA valid time, and scheduling information SR sent. Cycle, available power PHR transmission period, DRX parameters, etc.
  • MAC media access control
  • the air interface resource may further include: a semi-persistent scheduling configuration, an uplink and a downlink semi-static period, and a number of processes;
  • the foregoing air interface resources may further include: dedicated physical configuration PDSCH channel power offset, PUCCH resource and ACK/NACK repetition times, PUSCH power offset and frequency modulation mode, uplink power control configuration, CQI configuration, etc.; RLF timer, measurement format Wait;
  • connection establishment message may include, in addition to the air interface resource, the TA information, that is, the time that the UE uplink needs to be adjusted for the last transmission, and the ID of the UE that uniquely identifies the UE in the access cell.
  • the feedback unit 53 may be configured to use the air interface resource feedback connection establishment confirmation message of the access cell, where the air interface resource is an air interface resource indicated by the air interface resource.
  • the UE when the UE needs to go to the cell other than the current camping cell to initiate the establishment of the radio resource connection, the UE does not need to re-initiate the connection establishment request message, but is directly based on the The connection setup request message initiated in the pre-resident cell completes the RRC establishment of the cell outside the currently camped cell. Thereby, the delay and signaling in the wireless resource connection process can be reduced.
  • the foregoing UE may be any smart device that specifically initiates an RRC establishment, such as a mobile phone, a tablet computer, an in-vehicle device, and a wearable device.
  • the UE initiates a connection setup request message to the first base station to which the currently camped resident cell belongs; the UE receives a connection setup message carrying the air interface resource of the access cell, where the access cell is The camping cell that is not the UE identified by the first base station; the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell. Therefore, when the cell handover needs to be performed, the UE does not need to initiate the establishment of the radio resource connection again, so that the present invention can reduce the delay and signaling in the process of establishing the radio resource connection compared with the prior art.
  • FIG. 6 is a schematic structural diagram of another UE according to an embodiment of the present invention. As shown in FIG. 6, the method includes: an initiating unit 61, a first receiving unit 62, and a feedback unit 63, where:
  • the initiating unit 61 is configured to initiate a connection establishment request message to the first base station to which the currently camped resident cell belongs.
  • the RRC connection request message may carry the report information, for example, the measurement result, the frequency point capability information of the UE, and the service type, so that the first base station may further identify the report message based on the report information carried in the RRC connection request message.
  • the receiving unit 62 is configured to receive a connection setup message that carries the air interface resource of the access cell, where the access cell is a camped cell that is not the UE identified by the first base station.
  • the first receiving unit 62 may be configured to receive a connection setup message that is sent by the first base station and that carries the air interface resource of the access cell, where the access cell belongs to the first base station.
  • the UE may establish connection establishment in the access cell adjacent to the camping cell and belonging to the first base station.
  • the air interface resource of the access cell may be selected by the first base station.
  • the first receiving unit 62 may receive a connection setup message that is sent by the first base station and carries an air interface resource of the access cell, where the access cell belongs to the second base station.
  • the air interface resource of the access cell may be that the second base station responds to the first Acquired by a resource request sent by a base station, and replied to the first base station.
  • the UE may perform connection establishment on the access cell of the second base station adjacent to the first base station, for example, when the first base station identifies that the UE is not suitable for connection in any cell under the first base station.
  • the first base station may send a request to the neighboring second base station to request the cell under the second base station to provide connection establishment of the UE.
  • the first base station identifies that the UE is not connected to the camping cell, and the first base station may send a resource request (resource request message) to the neighboring second base station, and the second base station receives the request.
  • a return response message (resource response message), where the response message carries the air interface resource of the access cell, where the access cell may be the first base station, according to the measurement result reported by the UE, a cell under the second base station for performing connection establishment of the UE.
  • the feedback unit 63 is configured to feed back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell.
  • the foregoing UE may further include:
  • a second receiving unit 64 configured to receive system information block SIB information or a dedicated message broadcast by the first base station, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • the measuring unit 65 is configured to perform measurement on the multiple cells according to the frequency point information, to obtain measurement results of the multiple cells.
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • the measurement result of the at least one candidate cell may be in a bitmap reporting manner, for example, camping on the cell frequency point F1 or the cell ID cell1 in the SIB information, and the frequency point F2 or the cell ID cell2 of the other three neighboring cells.
  • the measurement result reported by the UE may include 101.
  • the foregoing SIB information or the dedicated message may further include measurement information, for example, a preset threshold, so that when the UE performs measurement on the multiple cells, the UE may select a cell whose measurement result has a signal quality higher than a preset threshold.
  • the candidate cell can ensure the signal quality of the access cell.
  • the UE capability may be combined, and the candidate cell, that is, the UE, is supported, and the signal quality of the measurement result is higher than the preset threshold.
  • the first receiving unit 62 may monitor the at least one candidate cell, and receive, in the access cell in the at least one candidate cell, a connection that carries the air interface resource of the access cell. Create a message.
  • the UE may receive a connection setup message in the access cell.
  • the base station to which the access cell belongs sends a connection establishment message to the UE.
  • connection establishment request message may further carry at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the frequency capability and the measurement result may not be obtained from the SIB or the dedicated message.
  • the UE performs measurement on a preset cell or another cell such as a neighboring cell to obtain a measurement result of the cell.
  • the frequency point capability and the measurement result supported by the UE may be used by the first base station to select an access cell of the UE, that is, the first base station may select an access cell of the UE according to the frequency capability and/or measurement result supported by the UE.
  • the foregoing RRC connection setup message may further include at least one of the following:
  • mapping information of the RB The mapping information of the RB, the configuration information of the RB, the TA information for performing uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • connection establishment message does not include the above information is also achievable.
  • the mapping information and the configuration information of the RB may be sent by the base station to which the access cell belongs.
  • the mapping information and configuration information of the RB may be the second.
  • the base station sends the message to the UE directly through the connection setup message, or the second base station sends the mapping information and the configuration information of the RB to the first base station, and then the first base station sends the message to the UE through the connection setup message; or the access cell
  • the mapping information and the configuration information of the foregoing RB may be directly sent by the first base station to the UE by using a connection establishment message.
  • the configuration information may include: a radio link control layer (Radio Link Control, RLC) Configuration information, Packet Data Convergence Protocol (PDCP) configuration information, and Medium Access Control (MAC) configuration information.
  • RLC Radio Link Control layer
  • PDCP Packet Data Convergence Protocol
  • MAC Medium Access Control
  • the TA information for adjusting the uplink transmission may also be sent by the base station to which the access cell belongs.
  • the TA information may be established by the second base station by using a connection.
  • the message is directly sent to the UE, or the second base station sends the TA information to the first base station, and then the first base station sends the message to the UE through the connection setup message, or the first base station calculates the timing difference between the two base stations.
  • the TA information is sent to the UE by the first base station; or the access cell belongs to the first base station, and the TA information may be directly sent by the first base station to the UE by using a connection setup message.
  • the TA information may be used by the UE to determine an uplink transmission timing, that is, the UE may determine, according to the TA information, a time for reporting an RRC setup confirmation message.
  • the UE can also maintain a set of cell TA information, so that the UE can use the stored TA information to access any one of the group of cells before the predetermined timer expires.
  • the UE may further send the RRC setup acknowledgement message by using the first base station to send a TA value in the camped cell, that is, the UE may further send a TA value to the camped cell according to the first base station.
  • the base station feeds back the above RRC setup confirmation message.
  • the signature sequence information of the PRACH may be the signature sequence information of the access cell, so that the UE can use the signature sequence information to access the cell for non-contention random access.
  • the access cell and the camped cell may be the same-frequency cell, or may be an inter-frequency cell, or may be different access sub-networks in the evolved network, for example, the access cell and the foregoing resident
  • the cells may be macro coverage cells and micro station cells, respectively.
  • FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 7, the method includes: a first receiving unit 71, an obtaining unit 72, and a sending unit 73, where:
  • the first receiving unit 71 is configured to send a connection establishment request message initiated by the UE in a camped cell where the UE currently camps.
  • the obtaining unit 72 is configured to acquire, when the base station, the UE is not in the camping cell to perform connection establishment, to obtain an air interface resource of the access cell used for performing connection establishment of the UE.
  • the obtaining unit 72 may be an air interface resource that acquires an access cell for performing connection establishment of the UE when it is determined that the UE needs to perform cell handover, or the UE currently needs to perform traffic in another cell.
  • the air interface resource may optionally include: a radio link control (RLC) configuration, where the RLC configuration may include an RLC mode, an RLC SN length, an RLC POLL timer, and the like;
  • RLC radio link control
  • the air interface resource may further include: the logical channel configuration includes a logical channel priority, a guaranteed rate, a logical channel grouping information, and the like;
  • the air interface resource may further include: Packet Data Convergence Protocol (PDCP) configuration information, where the PDCP configuration information may include a drop timer, a sequence number configuration, a header compression configuration, and the like;
  • PDCP Packet Data Convergence Protocol
  • the air interface resource may further include: media access control (MAC) configuration information, where the MAC configuration information may include an uplink HARQ maximum retransmission number, a periodic BSR reporting timer, a TA valid time, and scheduling information SR sent. Cycle, available power PHR transmission period, DRX parameters, etc.
  • MAC media access control
  • the air interface resource may further include: a semi-persistent scheduling configuration, an uplink and a downlink semi-static period, and a number of processes;
  • the foregoing air interface resources may further include: dedicated physical configuration PDSCH channel power offset, PUCCH resource and ACK/NACK repetition times, PUSCH power offset and frequency modulation mode, uplink power control configuration, CQI configuration, etc.; RLF timer, measurement format Wait;
  • connection establishment message may include, in addition to the air interface resource, the TA information, that is, the time that the UE uplink needs to be adjusted for the last transmission, and the ID of the UE that uniquely identifies the UE in the access cell.
  • the base station may determine whether the UE can establish a connection in the camped cell, and determine which access cell to go to, for example, when the connection setup request message is carried.
  • the base station may identify the report information to identify whether the UE establishes a connection establishment in the camped cell, if not in the camped cell.
  • the base station may identify the access cell in which the UE performs connection establishment according to the foregoing report information, the pre-stored capability information of the UE, the service type, or the related policy information of the network load, that is, the base station selects an access cell for the UE.
  • the acquiring unit 72 may be configured to select a cell adjacent to the camping cell as the access cell for performing connection establishment of the UE, and obtain an air interface of the access cell. Resources.
  • the base station when the base station recognizes that the UE can establish a connection in a cell of the first base station, the base station can use the cell as the access cell and acquire the air interface resource of the cell.
  • the first base station may further select, according to the frequency point capability information and the service type of the UE, that the base station lower frequency point is supported by the UE and provides the service type.
  • the cell of the service serves as the access cell described above.
  • the acquiring unit 72 may be configured to send a resource request to the target base station, and receive a response message that is returned by the target base station in response to the resource request, where the response message carries the air interface resource of the access cell.
  • the access cell is a cell under the target base station for performing connection establishment of the UE.
  • the base station may identify, according to the report information carried in the connection establishment request message, for example, the measurement result, the UE frequency point capability information, and the service type.
  • a certain cell under the target base station serves as an access cell corresponding to the UE, and sends a resource request to the target base station.
  • the target base station may be a base station to which the access cell corresponding to the UE selected by the base station according to the report information carried in the RRC connection request message belongs.
  • the foregoing resource request may also carry the foregoing measurement result, or may also carry the UE frequency point capability information and the service type in the RRC request message, so that the target base station may select the air interface resource of the access cell.
  • the sending unit 73 is configured to send, to the UE, a connection setup message carrying the air interface resource of the access cell, so that the UE feeds back a connection establishment confirmation to the base station to which the access cell belongs in the access cell. Message.
  • the foregoing base station may further include:
  • the broadcasting unit 74 is configured to broadcast system information block SIB information or a dedicated message, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • the UE may perform measurement on the multiple cells according to the frequency point information, and obtain measurement results of multiple cells, or the UE may further
  • the UE selected in the cell is capable of making at least one candidate cell to establish a connection.
  • the connection initiation request message initiated by the UE may include the measurement result of the foregoing multiple cells, or may include the measurement result of the at least one candidate cell, so that the first base station selects the access cell corresponding to the UE according to the reported measurement result.
  • connection establishment request message may further carry at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the frequency capability and the measurement result may not be obtained from the SIB or the dedicated message.
  • the UE performs measurement on a preset cell or another cell such as a neighboring cell to obtain a measurement result of the cell.
  • the frequency point capability and the measurement result supported by the UE may be used by the base station to select an access cell of the UE, that is, the base station may select an access cell of the UE according to the frequency capability and/or the measurement result supported by the UE.
  • connection establishment message may further include at least one of the following:
  • Mapping information of RBs may be used to determine whether RBs are mapped to Physical layer resource.
  • configuration information of RBs may be used to determine whether TA is uplink transmission.
  • TA information for uplink transmission
  • physical layer resource information for uplink transmission
  • signature sequence information of PRACH for uplink transmission
  • the base station receives a connection establishment request message initiated by the user equipment UE in the camped cell where the UE currently camps; when the base station identifies that the UE is not in the camped cell, the connection establishment is performed.
  • the base station acquires an air interface resource of an access cell for performing connection establishment of the UE; the base station sends a connection establishment message carrying the air interface resource of the access cell to the UE, so that the UE is in the
  • the connection establishment cell confirms a connection establishment confirmation message to the base station to which the access cell belongs.
  • FIG. 9 is a schematic structural diagram of another UE according to an embodiment of the present invention.
  • the method includes: a processor 91, a network interface 92, a memory 93, and a communication bus 94.
  • the bus 94 is used to implement connection communication between the processor 91, the network interface 92 and the memory 93, and the processor 91 executes a program stored in the memory 93 for implementing the following method:
  • a connection establishment confirmation message is fed back to the base station to which the access cell belongs in the access cell.
  • the program may be used to execute the following procedure:
  • SIB information or a dedicated message broadcast by the first base station, where the SIB information or the dedicated message includes frequency point information of multiple cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the first base station to select an access cell corresponding to the UE;
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the first base station to identify an access cell corresponding to the UE, where the at least one candidate cell is a
  • the UE that is selected from the plurality of cells according to the measurement result is capable of establishing at least one candidate cell for establishing a connection.
  • connection establishment request message may further carry at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • the program executed by the processor 91 to receive the connection establishment message carrying the air interface resource of the access cell may include:
  • the at least one candidate cell is monitored, and a connection establishment message carrying the air interface resource of the access cell is received in the access cell in the at least one candidate cell.
  • the program executed by the processor 91 to receive the connection establishment message carrying the air interface resource of the access cell may include:
  • the air interface resource of the access cell may be obtained by the second base station in response to the resource request sent by the first base station, and Replying to the first base station.
  • the foregoing RRC connection setup message may further include at least one of the following:
  • mapping information of the RB The mapping information of the RB, the configuration information of the RB, the timing adjustment TA information for performing uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the UE initiates a connection setup request message to the first base station to which the currently camped resident cell belongs; the UE receives a connection setup message carrying the air interface resource of the access cell, where the access cell is the The camping cell that is not the UE identified by the first base station; the UE feeds back a connection establishment confirmation message to the base station to which the access cell belongs in the access cell. Therefore, when the cell handover needs to be performed, the UE does not need to initiate the RRC setup again, so that the present invention can reduce the delay and signaling in the radio resource connection process compared with the prior art.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the method includes: a processor 101, a network interface 102, a memory 103, and a communication bus 104.
  • the bus 104 is used to implement connection communication between the processor 101, the network interface 102 and the memory 103, and the processor 101 executes a program stored in the memory 103 for implementing the following method:
  • the program that is used by the processor 101 to obtain the air interface resource of the access cell for performing the connection establishment of the UE may include:
  • the program that is used by the processor 101 to obtain the air interface resource of the access cell for performing the connection establishment of the UE may include:
  • the processor 101 may be configured to execute the following procedure before executing the process of receiving the connection establishment request message initiated by the user equipment UE in the camping cell currently camped by the UE:
  • Broadcasting system information block SIB information or a dedicated message, wherein the SIB information or the dedicated message includes frequency point information of a plurality of cells;
  • connection establishment request message carries the measurement result of the multiple cells, and the measurement result of the multiple cells is used by the base station to select an access cell corresponding to the UE; or
  • the connection establishment request carries a measurement result of at least one candidate cell in the multiple cells, where the measurement result is used by the base station to identify an access cell corresponding to the UE, and the at least one candidate cell is the UE.
  • the UE selected from the plurality of cells according to the measurement result is capable of performing at least one candidate cell establishing a connection.
  • connection establishment request message may further carry at least one of the following:
  • the frequency point capability and measurement result supported by the UE The frequency point capability and measurement result supported by the UE.
  • connection establishment message may further include at least one of the following:
  • mapping information of the RB The mapping information of the RB, the configuration information of the RB, the timing adjustment TA information for uplink transmission, the physical layer resource information, and the signature sequence information of the physical random access channel PRACH.
  • the base station receives a connection establishment request message initiated by the user equipment UE in the camped cell where the UE currently camps; when the base station identifies that the UE is not in the camped cell, the connection is acquired.
  • the base station to which the access cell belongs feeds back a connection establishment confirmation message. Thereby To reduce the delay and signaling during the establishment of the radio resource connection.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Abstract

本发明实施例公开了一种无线资源连接建立方法、用户设备和基站，该方法可包括：UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；所述UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。本发明实施例可以减少无线资源连接建立过程中的时延和信令。

Description

一种无线资源连接建立方法、用户设备和基站 技术领域
本发明涉及通信领域，尤其涉及一种无线资源连接建立方法、用户设备和基站。
背景技术
在通信***中用户设备(User Equipment，UE)在某一个小区驻留需要发起业务的时，UE会向驻留小区发起物理随机接入信道(Physical Random Access Channel，PRACH)过程，以申请资源建立信令连接进而建立业务。其中，网络侧接收到UE的连接建立请求后会根据UE发起的业务、网络负载和测量结果等数据选择给UE分配本小区资源建立连接，也可以重定向或者切换到其他小区。然后，目前当需要切换到其他小区时，以无线资源控制协议(Radio Resource Control，RRC)建立为例，是在RRC连接拒绝RRC connection reject消息里指定频点，UE在指定搜索小区，再驻留至搜索到的小区，从而在该小区内发起RRC建立。可见，目前无线资源连接建立过程存在较长的时延和过多的信令。
发明内容
本发明提供了一种无线资源连接建立方法、用户设备和基站，可以减少无线资源连接建立过程中的时延和信令。
第一方面，本发明提供一种无线资源连接建立方法，包括：
UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
所述UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
在第一方面的第一种可能的实现方式中，所述UE向当前驻留的驻留小区 所属的第一基站发起连接建立请求消息之前，所述方法还包括：
所述UE接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
所述UE根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述UE接收携带有接入小区的空口资源的连接建立消息，包括：
所述UE对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
结合第一方面，在第一方面的第二种可能的实现方式中，所述连接建立请求消息携带有如下至少一项：
所述UE支持的频点能力和测量结果。
结合第一方面或者第一方面的第一种可能的实现方式或者第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述UE接收携带有接入小区的空口资源的连接建立消息，包括：
所述UE接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站；或者
所述UE接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
结合第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
结合第一方面或者第一方面的第一种可能的实现方式或者第一方面的第二种可能的实现方式或者第一方面的第三种可能的实现方式或者第一方面的第四种可能的实现方式或者第一方面的第五种可能的实现方式，在第一方面的第六种可能的实现方式中，所述连接建立消息还包括如下至少一项：
无线承载RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
第二方面，本发明提供一种无线资源连接建立方法，包括：
第一基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
当所述第一基站识别出所述UE不在所述驻留小区进行连接建立时，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源；
所述第一基站向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
在第二方面的第一种可能的实现方式中，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源，包括：
所述第一基站选择所述第一基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
结合第二方面，在第二方面的第二种可能的实现方式中，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源，包括：
所述第一基站向第二基站发送资源请求；
所述第一基站接收所述第二基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述第二基站下的用于进行所述UE的连接建立的小区。
结合第二方面或者第二方面的第一种可能的实现方式或者第二方面的第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述第一基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息之前，所述方法还包括：
所述第一基站广播***信息块SIB信息或者专用消息，其中，所述SIB 信息或者专用消息包括多个小区的频点信息；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
结合第二方面或者第二方面的第一种可能的实现方式或者第二方面的第二种可能的实现方式，在第二方面的第四种可能的实现方式中，所述连接建立请求消息携带有如下至少一项：
所述UE支持的频点能力和测量结果。
结合第二方面或者第二方面的第一种可能的实现方式或者第二方面的第二种可能的实现方式或者第二方面的第三种可能的实现方式或者第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述连接建立消息还包括如下至少一项：
无线承载RB的映射信息、RB的配置信息、用于上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
第三方面，本发明提供一种UE，包括：发起单元、第一接收单元和反馈单元，其中：
所述发起单元，用于向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
所述接收单元，用于接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
所述反馈单元，用于在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
在第三方面的第一种可能的实现方式中，所述UE还包括：
第二接收单元，用于接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
测量单元，用于根据所述频点信息对所述多个小区进行测量，得到所述多 个小区的测量结果；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
结合第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述第一接收单元用于对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
结合第三方面，在第三方面的第三种可能的实现方式中，所述连接建立请求消息携带有如下至少一项：
所述UE支持的频点能力和测量结果。
结合第三方面或者第三方面的第一种可能的实现方式或者第三方面的第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述第一接收单元用于接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站；或者
所述第一接收单元用于接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
结合第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
结合第三方面或者第三方面的第一种可能的实现方式或者第三方面的第二种可能的实现方式结合第三方面或者第三方面的第三种可能的实现方式或者第三方面的第四种可能的实现方式或者第三方面的第五种可能的实现方式中，在第三方面的第六种可能的实现方式中，所述RRC连接建立消息还包括如下至少一项：
无线承载RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
第四方面，本发明提供一种基站，包括：第一接收单元、获取单元、发送单元，其中：
所述第一接收单元，用于接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
所述获取单元，用于当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源；
所述发送单元，用于向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
在第四方面的第一种可能的实现方式中，所述获取单元用于选择所述基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
结合第四方面，在第四方面的第二种可能的实现方式中，所述获取单元用于向目标基站发送资源请求；以及接收所述目标基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述目标基站下的用于进行所述UE的连接建立的小区。
结合第四方面或者第四方面的第一种可能的实现方式或者第四方面的第二种可能的实现方式，在第四方面的第三种可能的实现方式中，所述基站还包括：
广播单元，用于广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
结合第四方面或者第四方面的第一种可能的实现方式或者第四方面的第二种可能的实现方式，在第四方面的第四种可能的实现方式中，所述连接建立请求消息携带有如下至少一项：
所述UE支持的频点能力和测量结果。
结合第四方面或者第四方面的第一种可能的实现方式或者第四方面的第二种可能的实现方式或者第四方面的第三种可能的实现方式或者第四方面的第四种可能的实现方式，在第四方面的第五种可能的实现方式中，所述连接建立消息还包括如下至少一项：
无线承载RB的映射信息、RB的配置信息、用于上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
第五方面，本发明提供一种UE，其特征在于，包括：处理器、网络接口、存储器和通信总线，其中，所述通信总线用于实现所述处理器、网络接口和存储器之间连接通信，所述处理器执行所述存储器中存储的程序用于实现以下方法：
向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
在第五方面的第一种可能的实现方式中，所述处理器执行向当前驻留的驻留小区所属的第一基站发起连接建立请求消息的程序之前，还用于执行如下程序：
接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个 候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
结合第五方面的第一种可能的实现方式，在第五方面的第二种可能的实现方式中，所述处理器执行的接收携带有接入小区的空口资源的连接建立消息的程序，包括：
对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
结合第五方面，在第五方面的第三种可能的实现方式中，所述连接建立请求消息携带有如下至少一项：
所述UE支持的频点能力和测量结果。
结合第五方面或者第五方面的第一种可能的实现方式，在第五方面的第四种可能的实现方式中，所述处理器执行的接收携带有接入小区的空口资源的连接建立消息的程序，包括：
接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站；或者
接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
结合第五方面的第四种可能的实现方式，在第五方面的第五种可能的实现方式中，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
结合第五方面或者第五方面的第一种可能的实现方式或者第五方面的第二种可能的实现方式或者第五方面的第三种可能的实现方式或者第五方面的第四种可能的实现方式或者第五方面的第五种可能的实现方式，在第五方面的第六种可能的实现方式中，所述连接建立消息还包括如下至少一项：
无线承载RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
第六方面，本发明提供一种基站，包括：处理器、网络接口、存储器和通信总线，其中，所述通信总线用于实现所述处理器、网络接口和存储器之间连 接通信，所述处理器执行所述存储器中存储的程序用于实现以下方法：
接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源；
向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
在第六方面的第一种可能的实现方式中，所述处理器执行的获取用于进行所述UE的连接建立的接入小区的空口资源的程序，包括：
选择所述基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
结合第六方面，在第六方面的第二种可能的实现方式中，所述处理器执行的获取用于进行所述UE的连接建立的接入小区的空口资源的程序，包括：
向与目标基站发送资源请求；
接收所述目标基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述目标基站下的用于进行所述UE的连接建立的小区。
结合第六方面或者第六方面的第一种可能的实现方式或者第六方面的第二种可能的实现方式，在第六方面的第三种可能的实现方式中，所述处理器在执行接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息的程序之前，还用于执行如下程序：
广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
结合第六方面或者第六方面的第一种可能的实现方式或者第六方面的第二种可能的实现方式，在第六方面的第四种可能的实现方式中，所述连接建立请求消息携带有如下至少一项：
所述UE支持的频点能力和测量结果。
结合第六方面或者第六方面的第一种可能的实现方式或者第六方面的第二种可能的实现方式或者第六方面的第三种可能的实现方式或者第六方面的第四种可能的实现方式，在第六方面的第五种可能的实现方式中，所述连接建立消息还包括如下至少一项：
无线承载RB的映射信息、RB的配置信息、用于上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
上述技术方案中，用户设备UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；所述UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可以实现在需要进行小区切换时，UE无需再次发起无线资源连接建立，从而与现有技术相比，本发明可以减少无线资源连接建立过程中的时延和信令。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种无线资源连接建立方法的流程示意图；
图2是本发明实施例提供的另一种无线资源连接建立方法的流程示意图；
图3是本发明实施例提供的另一种无线资源连接建立方法的流程示意图；
图4是本发明实施例提供的另一种无线资源连接建立方法的示意图；
图5是本发明实施例提供的一种UE的结构示意图；
图6是本发明实施例提供的另一种UE的结构示意图；
图7是本发明实施例提供的一种基站的结构示意图；
图8是本发明实施例提供的另一种基站的结构示意图；
图9是本发明实施例提供的另一种UE的结构示意图；
图10是本发明实施例提供的另一种基站的结构示意图。
具体实施方式
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，所描述的实施例仅仅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作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。
请参阅图1，图1是本发明实施例提供的一种无线资源连接建立方法的流程示意图，如图1所示，包括以下步骤：
101、UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息。
本实施例中，当UE需要向当前驻留的驻留小区请求资源或者发起业务时，就可以向当前驻留的驻留小区所属的第一基站发起连接建立请求消息，例如：RRC连接请求消息(RRC connection request消息)。
102、UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区。
当上述第一基站接收到上述连接建立消息后，可以判断该UE是否可以在上述驻留小区进行无线资源连接建立(例如：RRC建立)，例如：上述连接建立请求消息携带有业务类型时，第一基站可以根据驻留小区的负载情况和UE上报的业务类型判断是否在该驻留小区连接建立，或者第一基站可以根据驻留小区的负载情况判断是否在该驻留小区连接建立。当识别出UE不在上述驻留小区进行无线资源连接建立时，例如：识别UE需要进行更换小区接入，就可以选择进行所述UE的无线资源连接建立的接入小区，即选择与UE建链的小区。例如：当上述连接建立请求消息携带有上报信息，例如：测量结果、频点能力信息或者业务类型时，第一基站可以根据该上报信息进行识别，以识别出作为上述接入小区的小区。或者第一基站还可以根据预先存储的UE的能力信息、业务类型或者网络负载等相关策略信息识别出作为上述接入小区的小区， 即在该接入小区进行连接建立或者建链。
当第一基站选择好上述接入小区后，可以通过RRC连接请求消息(RRC connection setup消息)发送建立消息给UE。
另外，上述UE接收到的连接建立消息可以是上述第一基站发送的，也可以是上述接入小区所属的基站发送的。
其中，上述非所述UE的驻留小区可以是指出上述驻留小区之外的任意一小区。
103、UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
当UE接收到上述连接建立消息后，就可以在接入小区向接入小区所属的基站反馈连接建立确认消息。其中，该连接建立确认消息可以是L3(RRC层)的RRC连接建立完成消息(RRC connection setup complete消息)，也可以是其他L1(物理层)或者L2(MAC层或者RLC层)的确认信息，例如：MAC control element。
另外，本实施例中，步骤103可以是利用上述接入小区的空口资源反馈连接建立确认消息。
另外，上述空口资源可以可选包括：无线链路控制(Radio Link Control，RLC)配置，其中，RLC配置可以包括RLC模式，RLC SN长度，RLC POLL定时器等；
另外，上述空口资源还可以包括：逻辑信道配置包括逻辑信道优先级，保证速率，逻辑信道分组信息等；
另外，上述空口资源还可以包括：分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)配置信息，其中，PDCP配置信息可以包括丢弃定时器，序号配置，头压缩配置等；
另外，上述空口资源还可以包括：媒体访问控制(Media Access Control，MAC)配置信息，其中，MAC配置信息可以包含上行HARQ最大重传次数，周期BSR上报定时器，TA有效时间，调度信息SR发送周期，可用功率PHR发送周期，DRX参数等；
另外，上述空口资源还可以包括：半静态调度配置上下行半静态周期，进 程数；
另外，上述空口资源还可以包括：专用物理配置PDSCH信道功率偏置，PUCCH资源和ACK/NACK重复次数，PUSCH功率偏置和调频模式，上行功控配置，CQI配置等；RLF定时器，测量格式等；
另外，上述连接建立消息除了空口资源还可以包括TA信息即UE上行针对上一次发送需要调整的时间以及接入小区内唯一识别UE的ID等。
通过上述步骤就可以实现当UE需要去当前驻留小区之外的小区发起无线资源连接建立时，UE不需要重新发起连接建立连求消息，而是直接基于在当前驻留小区内发起的连接建立请求消息完成在当前驻留小区之外的小区的RRC建立。从而可以减少无线资源连接过程中的时延和信令。
本实施例中，上述UE可以是任何具体发起RRC建立的智能设备，例如：手机、平板电脑、车载设备和穿戴设备等。
本实施例中，UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；所述UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可以实现在需要进行小区切换时，UE无需再次发起无线资源连接建立，从而与现有技术相比，本发明可以减少无线资源连接建立过程中的时延和信令。
请参阅图2，图2是本发明实施例提供的另一种无线资源连接建立方法的流程示意图，如图2所示，包括如下步骤：
201、UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息。
本实施例中，上述RRC连接请求消息可以携带上报信息，例如：测量结果、UE的频点能力信息和业务类型，这样第一基站还可以基于该RRC连接请求消息携带的这些上报信息识别出与UE进行连接建立的接入小区。
202、UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区。
本实施例中，步骤202可以包括：
UE接收所述第一基站发送的携带有接入小区的空口资源的连接建立消 息，其中，所述接入小区所属于所述第一基站。
该实施方式，可以实现UE在上述驻留小区的相邻且属于第一基站的接入小区进行连接建立。
另外，在该实施方式，上述接入小区的空口资源可以是由第一基站选择。
本实施例中，步骤202可以包括：
UE接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
另外，该实施方式中，上述接入小区的空口资源可以是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
该实施方式中，可以实现UE在第一基站相邻的第二基站下的接入小区进行连接建立，例如：当第一基站识别出UE当前不适合在第一基站下的任一小区进行连接建立时，第一基站就可以向相邻的第二基站发送请求，以请求第二基站下的小区提供上述UE的连接建立。例如：第一基站识别出所述UE不在所述驻留小区进行连接建立，第一基站可以向相邻的第二基站发送资源请求(resource request消息)，第二基站接收到该请求后就会向第一基站接收返回的响应消息(resource response消息)，所述响应消息携带有所述接入小区的空口资源，所述接入小区可以是所述第一基站根据UE上报测量结果选择所述第二基站下的用于进行所述UE的连接建立的小区。
203、UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
本实施例中，在步骤201之前，所述方法还可以包括如下步骤：
204、所述UE接收所述第一基站广播的***信息块(system information block，SIB)信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
205、UE根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果。
其中，所述连接建立请求消息携带可以有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带可以有所述多个小区中至少一个候选小区的测量 结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
其中，上述至少一个候选小区的测量结果可以是按照bitmap上报方式，例如：在上述SIB信息中驻留小区频点F1或者小区ID cell1，以及其他三个相邻小区的频点F2或者小区ID cell2、频点F3和频点F4或者小区ID cell3和cell4，如果UE支持频点F2和频点F4，不支持频点F3，或者小区2和小区4满足测量结果，小区3没有满足测量结果，那么，UE上报的测量结果就可以包括101。
另外，上述SIB信息或者专用消息中还可以包括测量信息，例如：预设门限，这样UE在对上述多个小区进行测量时，就可以选择测量结果的信号质量高于预设门限的小区作为上述候选小区，这样可以保证接入小区的信号质量。另外，该实施方式中，还可以上述UE能力进行结合，上述候选小区即UE是支持的，且还是测量结果的信号质量高于预设门限的小区。
该实施方式中，步骤202可以包括：
UE对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
该实施方式可以实现UE在接入小区中接收到连接建立消息，例如：接入小区所属的基站向UE发送连接建立消息。
本实施例中，所述连接建立请求消息还可以携带有如下至少一项：
所述UE支持的频点能力和测量结果。
其中，上述频点能力和测量结果可以不是从上述SIB或者专用消息获取的，例如：UE对预先设定的小区或者对相邻的小区等其他小区进行测量，以得到小区的测量结果。另外，上述UE支持的频点能力和测量结果可以用于第一基站选择UE的接入小区，即第一基站可以根据该UE支持的频点能力和/或测量结果选择UE的接入小区。
本实施例中，上述连接建立消息还可以包括如下至少一项：
无线承载(Radio Bearer，RB)的映射信息、RB的配置信息、用于进行上行发送的定时调整(Timing Advance，TA)信息、物理层资源信息和PRACH 的签名序列信息。
当然，这里仅是可选的，例如：上述连接建立消息不包括上述信息也是可以实现的。
其中，上述RB的映射信息和配置信息可以是上述接入小区所属的基站发送的，例如：当上述接入小区所属于第二基站时，那么上述RB的映射信息和配置信息就可以是第二基站通过连接建立消息直接发送给UE的，或者第二基站将上述RB的映射信息和配置信息发送给第一基站，再由第一基站通过连接建立消息发送给UE的；或者上述接入小区所属于第一基站，那么，上述RB的映射信息和配置信息就可以是第一基站通过连接建立消息直接发送给UE的。其中，配置信息可以包括：无线链路控制层(Radio Link Control，RLC)配置信息、分组数据聚合层(Packet Data Convergence Protocol，PDCP)配置信息和媒体接入控制层(Medium Access Control，MAC)配置信息。这样UE就可以根据这些配置信息和映射信息确定上下行传输配置。
另外，上述用于调整上行发送的TA信息也可以是由上述接入小区所属的基站发送的，例如：当上述接入小区所属于第二基站时，那么上述TA信息就可以是第二基站通过连接建立消息直接发送给UE的，或者第二基站将上述TA信息发送给第一基站，再由第一基站通过连接建立消息发送给UE的，或者由第一基站通过两个基站之间的定时差计算出TA信息通过第一基站发送给UE；或者上述接入小区所属于第一基站，那么，上述TA信息就可以是第一基站通过连接建立消息直接发送给UE的。其中，TA信息可以用于UE确定上行发送定时，即UE可以根据该TA信息确定上报RRC建立确认消息的时间。
另外，UE还可以维护一组小区TA信息，这样UE就可以使用存储的TA信息在预定定时器超期之前接入这一组小区的任意一个。
本实施例中，上述UE还可以使用上述第一基站在上述驻留小区发送TA值发送上述RRC建立确认消息，即UE还可以根据第一基站在上述驻留小区发送TA值向接入小区所属的基站反馈上述RRC建立确认消息。
本实施例中，上述PRACH的签名序列信息(signature)可以是上述接入小区的签名序列信息，这样UE就可以使用该签名序列信息去接入小区进行非竞争的随机接入。
本实施例中，上述接入小区和上述驻留小区可以是同频小区，也可以是异频小区，还可以是演进网络中不同的接入子网络，例如：上述接入小区和上述驻留小区分别可以是宏覆盖小区和微站小区。
本实施例中，在图1所示的实施例的基础上，增加了多种可选的实施方式，且都可以减少无线资源连接建立过程中的时延和信令。
请参阅图3，图3是本发明实施例提供的另一种无线资源连接建立方法的流程示意图，如图3所示，包括如下步骤：
301、第一基站接收UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息。
302、当所述第一基站识别出所述UE不在所述驻留小区进行连接建立时，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源。
步骤302可以是当识别到UE需要进行小区切换，或者UE当前需要在另一个小区进行业务时，第一基站获取用于进行所述UE的连接建立的接入小区的空口资源。
另外，上述空口资源可以可选包括：无线链路控制(Radio Link Control，RLC)配置，其中，RLC配置可以包括RLC模式，RLC SN长度，RLC POLL定时器等；
另外，上述空口资源还可以包括：逻辑信道配置包括逻辑信道优先级，保证速率，逻辑信道分组信息等；
另外，上述空口资源还可以包括：分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)配置信息，其中，PDCP配置信息可以包括丢弃定时器，序号配置，头压缩配置等；
另外，上述空口资源还可以包括：媒体访问控制(Media Access Control，MAC)配置信息，其中，MAC配置信息可以包含上行HARQ最大重传次数，周期BSR上报定时器，TA有效时间，调度信息SR发送周期，可用功率PHR发送周期，DRX参数等；
另外，上述空口资源还可以包括：半静态调度配置上下行半静态周期，进程数；
另外，上述空口资源还可以包括：专用物理配置PDSCH信道功率偏置，PUCCH资源和ACK/NACK重复次数，PUSCH功率偏置和调频模式，上行功控配置，CQI配置等；RLF定时器，测量格式等；
另外，上述连接建立消息除了空口资源还可以包括TA信息即UE上行针对上一次发送需要调整的时间以及接入小区内唯一识别UE的ID等。
本实施例中，当上述第一基站接收到上述RRC连接请求消息后，就可以判断该UE是否可以在上述驻留小区进行连接建立，以及判断去哪个接入小区，例如：当上述连接建立请求消息携带有上报信息，例如：测量结果、频点能力信息或者业务类型时，第一基站可以根据该上报信息进行识别，以识别出UE是否在上述驻留小区进行连接建立，若不在上述驻留小区进行连接建立时，第一基站可以根据上述上报信息、预先存储的UE的能力信息、业务类型或者网络负载等相关策略信息识别出上述UE进行连接建立的接入小区，即第一基站为UE选择接入小区。
本实施例中，上述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源，可以包括：
所述第一基站选择所述第一基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
例如：第一基站识别出UE能够在第一基站的某一个小区进行连接建立时，那么，第一基站就可以将该小区作为上述接入小区，并获取该小区的空口资源。
例如：当上述连接建立请求消息携带有UE的频点能力信息和业务类型时，第一基站还可以根据UE的频点能力信息和业务类型选择第一基站下频点被UE支持且提供该业务类型的业务的小区作为上述接入小区。
本实施例中，上述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源，可以包括：
所述第一基站向第二基站发送资源请求；
所述第一基站接收所述第二基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述第二基站下的用于进行所述UE的连接建立的小区。
例如：当第一基站识别出第一基站下的小区都不适合UE进行连接建立时， 第一基站可以根据连接建立请求消息携带的上报信息，例如：测量结果、UE频点能力信息和业务类型，识别出第二基站下某一小区作为UE对应的接入小区，并向与第二基站发送资源请求。其中，上述第二基站可以是第一基站根据RRC连接请求消息携带的上报信息选择的UE对应的接入小区所属的基站。另外，上述资源请求还可以携带有上述测量结果，或者还可以携带有RRC请求消息中的UE频点能力信息和业务类型，这样第二基站就可以选择该接入小区的空口资源。
303、第一基站向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
本实施例中，在步骤301之前还可以包括如下步骤：
所述第一基站广播SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
这样当UE接收到上述SIB消息或者专用消息后，就可以根据所述频点信息对所述多个小区进行测量，得到多个小区的测量结果，或者UE还可以根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。这样UE发起的连接建立请求消息就可以包括上述多个小区的测量结果，或者包括上述至少一个候选小区的测量结果，从而第一基站再根据上报的测量结果选择UE对应的接入小区。
本实施例中，所述连接建立请求消息还可以携带有如下至少一项：
所述UE支持的频点能力和测量结果。
其中，上述频点能力和测量结果可以不是从上述SIB或者专用消息获取的，例如：UE对预先设定的小区或者对相邻的小区等其他小区进行测量，以 得到小区的测量结果。另外，上述UE支持的频点能力和测量结果可以用于第一基站选择UE的接入小区，即第一基站可以根据该UE支持的频点能力和/或测量结果选择UE的接入小区。
本实施例中，上述连接建立消息还可以包括如下至少一项：
RB的映射信息、RB的配置信息、用于进行上行发送的TA信息、物理层资源信息和PRACH的签名序列信息。
当然，这里仅是可选的，例如：上述连接建立消息不包括上述信息也是可以实现的。
其中，上述RB的映射信息和配置信息可以是上述接入小区所属的基站发送的，例如：当上述接入小区所属于第二基站时，那么上述RB的映射信息和配置信息就可以是第二基站通过连接建立消息直接发送给UE的，或者第二基站将上述RB的映射信息和配置信息发送给第一基站，再由第一基站通过连接建立消息发送给UE的；或者上述接入小区所属于第一基站，那么，上述RB的映射信息和配置信息就可以是第一基站通过连接建立消息直接发送给UE的。其中，配置信息可以包括：无线链路控制层(Radio Link Control，RLC)配置信息、分组数据聚合层(Packet Data Convergence Protocol，PDCP)配置信息和媒体接入控制层(Medium Access Control，MAC)配置信息。这样UE就可以根据这些配置信息和映射信息确定上下行传输配置。
另外，上述用于调整上行发送的TA信息也可以是由上述接入小区所属的基站发送的，例如：当上述接入小区所属于第二基站时，那么上述TA信息就可以是第二基站通过连接建立消息直接发送给UE的，或者第二基站将上述TA信息发送给第一基站，再由第一基站通过连接建立消息发送给UE的，或者由第一基站通过两个基站之间的定时差计算出TA信息通过第一基站发送给UE；或者上述接入小区所属于第一基站，那么，上述TA信息就可以是第一基站通过连接建立消息直接发送给UE的。其中，TA信息可以用于UE确定上行发送定时，即UE可以根据该TA信息确定上报RRC建立确认消息的时间。
另外，UE还可以维护一组小区TA信息，这样UE就可以使用存储的TA信息在预定定时器超期之前接入这一组小区的任意一个。
本实施例中，上述UE还可以使用上述第一基站在上述驻留小区发送TA 值发送上述RRC建立确认消息，即UE还可以根据第一基站在上述驻留小区发送TA值向接入小区所属的基站反馈上述RRC建立确认消息。
本实施例中，上述PRACH的签名序列信息(signature)可以是上述接入小区的签名序列信息，这样UE就可以使用该签名序列信息去接入小区进行非竞争的随机接入。
本实施例中，上述接入小区和上述驻留小区可以是同频小区，也可以是异频小区，还可以是演进网络中不同的接入子网络，例如：，上述接入小区和上述驻留小区分别可以是宏覆盖小区和微站小区。
本实施例中，第一基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；当所述第一基站识别出所述UE不在所述驻留小区进行连接建立时，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源；所述第一基站向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可以实现减少无线资源连接建立过程中的时延和信令。
请参阅图4，图4是本发明实施例提供的另一种无线资源连接建立方法的示意图，如图4所示，包括：
401、UE接收第一基站广播的SIB信息。
其中，该SIB信息可以包括驻留小区的接入信息。
402、UE在驻留小区发送接入，向驻留小区所属的第一基站发送RRC连接请求消息。
其中，该RRC连接请求消息可以携带有上报信息，例如：UE支持的频点能力，业务类型以及测量结果。
403、第一基站判断UE是否在驻留小区进行RRC建立。
其中，第一基站可以根据UE上报信息或者网路预先存储的UE能力等以及网络负载等相关策略信息判断是否在驻留小区建链还是去本基站下的邻小区或者是相邻基站NodeB2的邻小区建链。
404、当第一基站判断UE需要在相邻的第二基站进行RRC建立时，向第 二基站发送资源请求消息。
405、第二基站响应上述资源请求消息向第一基站返回资源响应消息，其中，该资源响应消息可以包含相应的空口资源。
406、第一基站向UE下发相应的RRC连接建立消息。
407、UE收到RRC连接建立消息之后，根据RRC连接建立消息相应的内容去指定小区发送反馈消息。
其中，该指定小区为上述RRC连接建立消息中指定的小区，另外，上述反馈消息可以是L3的RRC连接建立完成消息，也可以是其他L1或者L2的确认信息。
本实施例中，UE接收第一基站广播的SIB信息；UE在驻留小区发送接入，向驻留小区所属的第一基站发送RRC连接请求消息；第一基站判断UE是否在驻留小区进行RRC建立；当第一基站判断UE需要在相邻的第二基站进行RRC建立时，向第二基站发送资源请求消息；第二基站响应上述资源请求消息向第一基站返回资源响应消息，其中，该资源响应消息可以包含相应的空口资源；第一基站向UE下发相应的RRC连接建立消息；UE收到RRC连接建立消息之后，根据RRC连接建立消息相应的内容去指定小区发送反馈消息。这样可以实现UE在驻留小区向第一基站发起RRC连接请求消息，当第一基站判断UE不在该驻留小区进行RRC建立时，第一基站可以向第二基站请求获取接入小区的空口资源，再由第一基站通过RRC连接建立消息向UE发送空口资源，从而实现UE通过在驻留小区发起RRC连接请求消息实现在第二基站下的接入小区建立RRC连接，从而不需要再在接入小区内发起RRC连接过程，从而可以减少RRC建立过程的时延和信令。
当然，本实施例仅是一个举例，本发明中包括的多种实施方式请参考图1-图3所示的实施例。
下面为本发明装置实施例，本发明装置实施例用于执行本发明方法实施例一至四实现的方法，为了便于说明，仅示出了与本发明实施例相关的部分，具体技术细节未揭示的，请参照本发明实施例一、实施例二、实施例三和实施例四。
请参阅图5，图5是本发明实施例提供的一种UE的结构示意图，如图5所示，包括：发起单元51、第一接收单元52和反馈单元53，其中：
发起单元51，用于向当前驻留的驻留小区所属的第一基站发起连接建立请求消息。
本实施例中，当UE需要向当前驻留的驻留小区请求资源或者发起业务时，就可以向当前驻留的驻留小区所属的第一基站发起连接建立请求消息，例如：RRC连接请求消息(RRC connection request消息)。
接收单元52，用于接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区。
当上述第一基站接收到上述连接建立消息后，可以判断该UE是否可以在上述驻留小区进行无线资源连接建立(例如：RRC建立)，例如：上述连接建立请求消息携带有业务类型时，第一基站可以根据驻留小区的负载情况和UE上报的业务类型判断是否在该驻留小区连接建立，或者第一基站可以根据驻留小区的负载情况判断是否在该驻留小区连接建立。当识别出UE不在上述驻留小区进行无线资源连接建立时，例如：识别UE需要进行更换小区接入，就可以选择进行所述UE的无线资源连接建立的接入小区，即选择与UE建链的小区。例如：当上述连接建立请求消息携带有上报信息，例如：测量结果、频点能力信息或者业务类型时，第一基站可以根据该上报信息进行识别，以识别出作为上述接入小区的小区。或者第一基站还可以根据预先存储的UE的能力信息、业务类型或者网络负载等相关策略信息识别出作为上述接入小区的小区，即在该接入小区进行连接建立或者建链。
当第一基站选择好上述接入小区后，可以通过RRC连接请求消息(RRC connection setup消息)发送建立消息给UE。
另外，上述UE接收到的连接建立消息可以是上述第一基站发送的，也可以是上述接入小区所属的基站发送的。
其中，上述非所述UE的驻留小区可以是指出上述驻留小区之外的任意一小区。
反馈单元53，用于在所述接入小区内向所述接入小区所属的基站反馈连 接建立确认消息。
当UE接收到上述连接建立消息后，就可以在接入小区向接入小区所属的基站反馈连接建立确认消息。其中，该连接建立确认消息可以是L3(RRC层)的RRC连接建立完成消息(RRC connection setup complete消息)，也可以是其他L1(物理层)或者L2(MAC层或者RLC层)的确认信息，例如：MAC control element。
另外，上述空口资源可以可选包括：无线链路控制(Radio Link Control，RLC)配置，其中，RLC配置可以包括RLC模式，RLC SN长度，RLC POLL定时器等；
另外，上述空口资源还可以包括：逻辑信道配置包括逻辑信道优先级，保证速率，逻辑信道分组信息等；
另外，上述空口资源还可以包括：分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)配置信息，其中，PDCP配置信息可以包括丢弃定时器，序号配置，头压缩配置等；
另外，上述空口资源还可以包括：媒体访问控制(Media Access Control，MAC)配置信息，其中，MAC配置信息可以包含上行HARQ最大重传次数，周期BSR上报定时器，TA有效时间，调度信息SR发送周期，可用功率PHR发送周期，DRX参数等；
另外，上述空口资源还可以包括：半静态调度配置上下行半静态周期，进程数；
另外，上述空口资源还可以包括：专用物理配置PDSCH信道功率偏置，PUCCH资源和ACK/NACK重复次数，PUSCH功率偏置和调频模式，上行功控配置，CQI配置等；RLF定时器，测量格式等；
另外，上述连接建立消息除了空口资源还可以包括TA信息即UE上行针对上一次发送需要调整的时间以及接入小区内唯一识别UE的ID等。
另外，本实施例中，反馈单元53可以是利用上述接入小区的空口资源反馈连接建立确认消息，其中，该空口资源为上述空口资源所表示的空口资源。
通过上述单元就可以实现当UE需要去当前驻留小区之外的小区发起无线资源连接建立时，UE不需要重新发起连接建立连求消息，而是直接基于在当 前驻留小区内发起的连接建立请求消息完成在当前驻留小区之外的小区的RRC建立。从而可以减少无线资源连接过程中的时延和信令。
本实施例中，上述UE可以是任何具体发起RRC建立的智能设备，例如：手机、平板电脑、车载设备和穿戴设备等。
本实施例中，UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；所述UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可以实现在需要进行小区切换时，UE无需再次发起无线资源连接建立，从而与现有技术相比，本发明可以减少无线资源连接建立过程中的时延和信令。
请参阅图6，图6是本发明实施例提供的另一种UE的结构示意图，如图6所示，包括：发起单元61、第一接收单元62和反馈单元63，其中：
发起单元61，用于向当前驻留的驻留小区所属的第一基站发起连接建立请求消息。
本实施例中，上述RRC连接请求消息可以携带上报信息，例如：测量结果、UE的频点能力信息和业务类型，这样第一基站还可以基于该RRC连接请求消息携带的这些上报信息识别出与UE进行连接建立的接入小区。
接收单元62，用于接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区。
本实施例中，第一接收单元62可以用于接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站。
该实施方式，可以实现UE在上述驻留小区的相邻且属于第一基站的接入小区进行连接建立。
另外，在该实施方式，上述接入小区的空口资源可以是由第一基站选择。
本实施例中，第一接收单元62可以用接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
该实施方式中，所述接入小区的空口资源可以是所述第二基站响应所述第 一基站发送的资源请求而获取的，并回复给所述第一基站的。
该实施方式中，可以实现UE在第一基站相邻的第二基站下的接入小区进行连接建立，例如：当第一基站识别出UE当前不适合在第一基站下的任一小区进行连接建立时，第一基站就可以向相邻的第二基站发送请求，以请求第二基站下的小区提供上述UE的连接建立。例如：第一基站识别出所述UE不在所述驻留小区进行连接建立，第一基站可以向相邻的第二基站发送资源请求(resource request消息)，第二基站接收到该请求后就会向第一基站接收返回的响应消息(resource response消息)，所述响应消息携带有所述接入小区的空口资源，所述接入小区可以是所述第一基站根据UE上报测量结果选择所述第二基站下的用于进行所述UE的连接建立的小区。
反馈单元63，用于在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
本实施例中，上述UE还可以包括：
第二接收单元64，用于接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
测量单元65，用于根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
其中，上述至少一个候选小区的测量结果可以是按照bitmap上报方式，例如：在上述SIB信息中驻留小区频点F1或者小区ID cell1，以及其他三个相邻小区的频点F2或者小区ID cell2、频点F3和频点F4或者小区ID cell3和cell4，如果UE支持频点F2和频点F4，不支持频点F3，或者小区2和小区4满足测量结果，小区3没有满足测量结果，那么，UE上报的测量结果就可以包括101。
另外，上述SIB信息或者专用消息中还可以包括测量信息，例如：预设门限，这样UE在对上述多个小区进行测量时，就可以选择测量结果的信号质量高于预设门限的小区作为上述候选小区，这样可以保证接入小区的信号质量。另外，该实施方式中，还可以上述UE能力进行结合，上述候选小区即UE是支持的，且还是测量结果的信号质量高于预设门限的小区。
该实施方式中，第一接收单元62可以对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
该实施方式可以实现UE在接入小区中接收到连接建立消息，例如：接入小区所属的基站向UE发送连接建立消息。
本实施例中，所述连接建立请求消息还可以携带有如下至少一项：
所述UE支持的频点能力和测量结果。
其中，上述频点能力和测量结果可以不是从上述SIB或者专用消息获取的，例如：UE对预先设定的小区或者对相邻的小区等其他小区进行测量，以得到小区的测量结果。另外，上述UE支持的频点能力和测量结果可以用于第一基站选择UE的接入小区，即第一基站可以根据该UE支持的频点能力和/或测量结果选择UE的接入小区。
本实施例中，上述RRC连接建立消息还可以包括如下至少一项：
RB的映射信息、RB的配置信息、用于进行上行发送的TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
当然，这里仅是可选的，例如：上述连接建立消息不包括上述信息也是可以实现的。
其中，上述RB的映射信息和配置信息可以是上述接入小区所属的基站发送的，例如：当上述接入小区所属于第二基站时，那么上述RB的映射信息和配置信息就可以是第二基站通过连接建立消息直接发送给UE的，或者第二基站将上述RB的映射信息和配置信息发送给第一基站，再由第一基站通过连接建立消息发送给UE的；或者上述接入小区所属于第一基站，那么，上述RB的映射信息和配置信息就可以是第一基站通过连接建立消息直接发送给UE的。其中，配置信息可以包括：无线链路控制层(Radio Link Control，RLC) 配置信息、分组数据聚合层(Packet Data Convergence Protocol，PDCP)配置信息和媒体接入控制层(Medium Access Control，MAC)配置信息。这样UE就可以根据这些配置信息和映射信息确定上下行传输配置。
另外，上述调整上行发送的TA信息也可以是由上述接入小区所属的基站发送的，例如：当上述接入小区所属于第二基站时，那么上述TA信息就可以是第二基站通过连接建立消息直接发送给UE的，或者第二基站将上述TA信息发送给第一基站，再由第一基站通过连接建立消息发送给UE的，或者由第一基站通过两个基站之间的定时差计算出TA信息通过第一基站发送给UE；或者上述接入小区所属于第一基站，那么，上述TA信息就可以是第一基站通过连接建立消息直接发送给UE的。其中，TA信息可以用于UE确定上行发送定时，即UE可以根据该TA信息确定上报RRC建立确认消息的时间。
另外，UE还可以维护一组小区TA信息，这样UE就可以使用存储的TA信息在预定定时器超期之前接入这一组小区的任意一个。
本实施例中，上述UE还可以使用上述第一基站在上述驻留小区发送TA值发送上述RRC建立确认消息，即UE还可以根据第一基站在上述驻留小区发送TA值向接入小区所属的基站反馈上述RRC建立确认消息。
本实施例中，上述PRACH的签名序列信息(signature)可以是上述接入小区的签名序列信息，这样UE就可以使用该签名序列信息去接入小区进行非竞争的随机接入。
本实施例中，上述接入小区和上述驻留小区可以是同频小区，也可以是异频小区，还可以是演进网络中不同的接入子网络，例如：上述接入小区和上述驻留小区分别可以是宏覆盖小区和微站小区。
本实施例中，在图5所示的实施例的基础上，增加了多种可选的实施方式，且都可以减少无线资源连接建立过程中的时延和信令。
请参阅图7，图7是本发明实施例提供的一种基站的结构示意图，如图7所示，包括：第一接收单元71、获取单元72、发送单元73，其中：
第一接收单元71，用于UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息。
获取单元72，用于当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源。
获取单元72可以是当识别到UE需要进行小区切换，或者UE当前需要在另一个小区进行业务时，获取用于进行所述UE的连接建立的接入小区的空口资源。
另外，上述空口资源可以可选包括：无线链路控制(Radio Link Control，RLC)配置，其中，RLC配置可以包括RLC模式，RLC SN长度，RLC POLL定时器等；
另外，上述空口资源还可以包括：逻辑信道配置包括逻辑信道优先级，保证速率，逻辑信道分组信息等；
另外，上述空口资源还可以包括：分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)配置信息，其中，PDCP配置信息可以包括丢弃定时器，序号配置，头压缩配置等；
另外，上述空口资源还可以包括：媒体访问控制(Media Access Control，MAC)配置信息，其中，MAC配置信息可以包含上行HARQ最大重传次数，周期BSR上报定时器，TA有效时间，调度信息SR发送周期，可用功率PHR发送周期，DRX参数等；
另外，上述空口资源还可以包括：半静态调度配置上下行半静态周期，进程数；
另外，上述空口资源还可以包括：专用物理配置PDSCH信道功率偏置，PUCCH资源和ACK/NACK重复次数，PUSCH功率偏置和调频模式，上行功控配置，CQI配置等；RLF定时器，测量格式等；
另外，上述连接建立消息除了空口资源还可以包括TA信息即UE上行针对上一次发送需要调整的时间以及接入小区内唯一识别UE的ID等。
本实施例中，当上述基站接收到上述RRC连接请求消息后，就可以判断该UE是否可以在上述驻留小区进行连接建立，以及判断去哪个接入小区，例如：当上述连接建立请求消息携带有上报信息，例如：测量结果、频点能力信息或者业务类型时，上述基站可以根据该上报信息进行识别，以识别出UE是否在上述驻留小区进行连接建立，若不在上述驻留小区进行连接建立时，上述 基站可以根据上述上报信息、预先存储的UE的能力信息、业务类型或者网络负载等相关策略信息识别出上述UE进行连接建立的接入小区，即上述基站为UE选择接入小区。
本实施例中，获取单元72可以用于选择所述基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
例如：上述基站识别出UE能够在第一基站的某一个小区进行连接建立时，那么，上述基站就可以将该小区作为上述接入小区，并获取该小区的空口资源。
例如：当上述连接建立请求消息携带有UE的频点能力信息和业务类型时，第一基站还可以根据UE的频点能力信息和业务类型选择上述基站下频点被UE支持且提供该业务类型的业务的小区作为上述接入小区。
本实施例中，获取单元72可以用于向目标基站发送资源请求；以及接收所述目标基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述目标基站下的用于进行所述UE的连接建立的小区。
例如：当上述基站识别出上述基站下的小区都不适合UE进行连接建立时，上述基站可以根据连接建立请求消息携带的上报信息，例如：测量结果、UE频点能力信息和业务类型，识别出目标基站下某一小区作为UE对应的接入小区，并向与目标基站发送资源请求。其中，上述目标基站可以是上述基站根据RRC连接请求消息携带的上报信息选择的UE对应的接入小区所属的基站。另外，上述资源请求还可以携带有上述测量结果，或者还可以携带有RRC请求消息中的UE频点能力信息和业务类型，这样目标基站就可以选择该接入小区的空口资源。
发送单元73，用于向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
本实施例中，如图8所示，上述基站还可以包括：
广播单元74，用于广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
这样当UE接收到上述SIB消息或者专用消息后，就可以根据所述频点信息对所述多个小区进行测量，得到多个小区的测量结果，或者UE还可以根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。这样UE发起的连接建立请求消息就可以包括上述多个小区的测量结果，或者包括上述至少一个候选小区的测量结果，从而第一基站再根据上报的测量结果选择UE对应的接入小区。
本实施例中，所述连接建立请求消息还可以携带有如下至少一项：
所述UE支持的频点能力和测量结果。
其中，上述频点能力和测量结果可以不是从上述SIB或者专用消息获取的，例如：UE对预先设定的小区或者对相邻的小区等其他小区进行测量，以得到小区的测量结果。另外，上述UE支持的频点能力和测量结果可以用于上述基站选择UE的接入小区，即上述基站可以根据该UE支持的频点能力和/或测量结果选择UE的接入小区。
本实施例中，上述连接建立消息还可以包括如下至少一项：
RB的映射信息、RB的配置信息、用于进行上行发送的TA信息、物理层资源信息和PRACH的签名序列信息。
本实施例中，基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；当所述基站识别出所述UE不在所述驻留小区进行连接建立时，所述基站获取用于进行所述UE的连接建立的接入小区的空口资源；所述基站向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可以实现减少无线资源连接建立过程中的时延和信令。
请参阅图9，图9是本发明实施例提供的另一种UE的结构示意图，如图9所示，包括：处理器91、网络接口92、存储器93和通信总线94，其中，所述通信总线94用于实现所述处理器91、网络接口92和存储器93之间连接通信，所述处理器91执行所述存储器93中存储的程序用于实现以下方法：
向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
本实施例中，处理器91执行向当前驻留的驻留小区所属的第一基站发起连接建立请求消息的程序之前，还可以用于执行如下程序：
接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
本实施例中，所述连接建立请求消息还可以携带有如下至少一项：
所述UE支持的频点能力和测量结果。
本实施便中，处理器91执行的接收携带有接入小区的空口资源的连接建立消息的程序，可以包括：
对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
本实施便中，处理器91执行的接收携带有接入小区的空口资源的连接建立消息的程序，可以包括：
接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其 中，所述接入小区所属于所述第一基站；或者
接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
本实施例中，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源可以是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
本实施便中，上述RRC连接建立消息还可以包括如下至少一项：
RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
本实施例中，UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可以实现在需要进行小区切换时，UE无需再次发起RRC建立，从而与现有技术相比，本发明可以减少无线资源连接过程中的时延和信令。
请参阅图10，图10是本发明实施例提供的另一种基站的结构示意图，如图10所示，包括：处理器101、网络接口102、存储器103和通信总线104，其中，所述通信总线104用于实现所述处理器101、网络接口102和存储器103之间连接通信，所述处理器101执行所述存储器103中存储的程序用于实现以下方法：
接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源；
向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
本实施例中，处理器101执行的获取用于进行所述UE的连接建立的接入小区的空口资源的程序，可以包括：
选择所述基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
本实施例中，处理器101执行的获取用于进行所述UE的连接建立的接入小区的空口资源的程序，可以包括：
向与目标基站发送资源请求；
接收所述目标基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述目标基站下的用于进行所述UE的连接建立的小区。
本实施例中，处理器101在执行接收所述用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息的程序之前，还可以用于执行如下程序：
广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述基站选择所述UE对应的接入小区；或者
所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
本实施例中，所述连接建立请求消息还可以携带有如下至少一项：
所述UE支持的频点能力和测量结果。
本实施例中，上述连接建立消息还可以包括如下至少一项：
RB的映射信息、RB的配置信息、用于上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
本实施例中，基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源；基站向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。从而可 以实现减少无线资源连接建立过程中的时延和信令。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存取存储器(Random Access Memory，简称RAM)等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (39)

  1. 一种无线资源连接建立方法，其特征在于，包括：
    用户设备UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
    所述UE接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
    所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
  2. 如权利要求1所述的方法，其特征在于，所述UE向当前驻留的驻留小区所属的第一基站发起连接建立请求消息之前，所述方法还包括：
    所述UE接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
    所述UE根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
    其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
    所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
  3. 如权利要求2所述的方法，其特征在于，所述UE接收携带有接入小区的空口资源的连接建立消息，包括：
    所述UE对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
  4. 如权利要求1所述的方法，其特征在于，所述连接建立请求消息携带有如下至少一项：
    所述UE支持的频点能力和测量结果。
  5. 如权利要求1或2或4所述的方法，其特征在于，所述UE接收携带有接入小区的空口资源的连接建立消息，包括：
    所述UE接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站；或者
    所述UE接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
  6. 如权利要求5所述的方法，其特征在在于，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
  7. 如权利要求1-6中任一项所述的方法，其特征在于，所述连接建立消息还包括如下至少一项：
    无线承载RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
  8. 一种无线资源连接建立方法，其特征在于，包括：
    第一基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
    当所述第一基站识别出所述UE不在所述驻留小区进行连接建立时，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源；
    所述第一基站向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
  9. 如权利要求8所述的方法，其特征在于，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源，包括：
    所述第一基站选择所述第一基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入小区，并获取所述接入小区的空口资源。
  10. 如权利要求8所述的方法，其特征在于，所述第一基站获取用于进行所述UE的连接建立的接入小区的空口资源，包括：
    所述第一基站向第二基站发送资源请求；
    所述第一基站接收所述第二基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述第二基站下的用于进行所述UE的连接建立的小区。
  11. 如权利要求8-10中任一项所述的方法，其特征在于，所述第一基站接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息之前，所述方法还包括：
    所述第一基站广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
    其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
    所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
  12. 如权利要求8-10中任一项所述的方法，其特征在于，所述连接建立请求消息携带有如下至少一项：
    所述UE支持的频点能力和测量结果。
  13. 如权利要求8-12中任一项所述的方法，其特征在于，所述连接建立消息还包括如下至少一项：
    无线承载RB的映射信息、RB的配置信息、用于上行发送的定时调整TA 信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
  14. 一种用户设备UE，其特征在于，包括：发起单元、第一接收单元和反馈单元，其中：
    所述发起单元，用于向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
    所述接收单元，用于接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
    所述反馈单元，用于在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
  15. 如权利要求14所述的UE，其特征在于，所述UE还包括：
    第二接收单元，用于接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
    测量单元，用于根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
    其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
    所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
  16. 如权利要求15所述的UE，其特征在于，所述第一接收单元用于对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
  17. 如权利要求14所述的UE，其特征在于，所述连接建立请求消息携带有如下至少一项：
    所述UE支持的频点能力和测量结果。
  18. 如权利要求14或15或17所述的UE，其特征在于，所述第一接收单元用于接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站；或者
    所述第一接收单元用于接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
  19. 如权利要求18所述的UE，其特征在于，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
  20. 如权利要求14-19中任一项所述的UE，其特征在于，所述RRC连接建立消息还包括如下至少一项：
    无线承载RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
  21. 一种基站，其特征在于，包括：第一接收单元、获取单元、发送单元，其中：
    所述第一接收单元，用于接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
    所述获取单元，用于当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源；
    所述发送单元，用于向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
  22. 如权利要求21所述的基站，其特征在于，所述获取单元用于选择所述基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接建立的接入 小区，并获取所述接入小区的空口资源。
  23. 如权利要求21所述的基站，其特征在于，所述获取单元用于向目标基站发送资源请求；以及接收所述目标基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述目标基站下的用于进行所述UE的连接建立的小区。
  24. 如权利要求21-23中任一项所述的基站，其特征在于，所述基站还包括：
    广播单元，用于广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
    其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述基站选择所述UE对应的接入小区；或者
    所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
  25. 如权利要求21-23中任一项所述的基站，其特征在于，所述连接建立请求消息携带有如下至少一项：
    所述UE支持的频点能力和测量结果。
  26. 如权利要求21-25中任一项所述的基站，其特征在于，所述连接建立消息还包括如下至少一项：
    无线承载RB的映射信息、RB的配置信息、用于上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
  27. 一种用户设备UE，其特征在于，包括：处理器、网络接口、存储器和通信总线，其中，所述通信总线用于实现所述处理器、网络接口和存储器之 间连接通信，所述处理器执行所述存储器中存储的程序用于实现以下方法：
    向当前驻留的驻留小区所属的第一基站发起连接建立请求消息；
    接收携带有接入小区的空口资源的连接建立消息，其中，所述接入小区为所述第一基站识别出的非所述UE的驻留小区；
    在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
  28. 如权利要求27所述的UE，其特征在于，所述处理器执行向当前驻留的驻留小区所属的第一基站发起连接建立请求消息的程序之前，还用于执行如下程序：
    接收所述第一基站广播的***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
    根据所述频点信息对所述多个小区进行测量，得到所述多个小区的测量结果；
    其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述第一基站选择所述UE对应的接入小区；或者
    所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述第一基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
  29. 如权利要求28所述的UE，其特征在于，所述处理器执行的接收携带有接入小区的空口资源的连接建立消息的程序，包括：
    对所述至少一个候选小区进行监听，并在所述至少一个候选小区中的所述接入小区中接收携带有所述接入小区的空口资源的连接建立消息。
  30. 如权利要求27所述的UE，其特征在于，所述连接建立请求消息携带有如下至少一项：
    所述UE支持的频点能力和测量结果。
  31. 如权利要求28或29所述的UE，其特征在于，所述处理器执行的接收携带有接入小区的空口资源的连接建立消息的程序，包括：
    接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于所述第一基站；或者
    接收所述第一基站发送的携带有接入小区的空口资源的连接建立消息，其中，所述接入小区所属于第二基站。
  32. 如权利要求31所述的UE，其特征在于，当所述接入小区所属于所述第二基站时，所述接入小区的空口资源是所述第二基站响应所述第一基站发送的资源请求而获取的，并回复给所述第一基站的。
  33. 如权利要求28-32中任一项所述的UE，其特征在于，所述连接建立消息还包括如下至少一项：
    无线承载RB的映射信息、RB的配置信息、用于进行上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
  34. 一种基站，其特征在于，包括：处理器、网络接口、存储器和通信总线，其中，所述通信总线用于实现所述处理器、网络接口和存储器之间连接通信，所述处理器执行所述存储器中存储的程序用于实现以下方法：
    接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息；
    当所述基站识别出所述UE不在所述驻留小区进行连接建立时，获取用于进行所述UE的连接建立的接入小区的空口资源；
    向所述UE发送携带有所述接入小区的空口资源的连接建立消息，以使所述UE在所述接入小区内向所述接入小区所属的基站反馈连接建立确认消息。
  35. 如权利要求34所述的基站，其特征在于，所述处理器执行的获取用于进行所述UE的连接建立的接入小区的空口资源的程序，包括：
    选择所述基站下与所述驻留小区相邻的小区作为用于进行所述UE的连接 建立的接入小区，并获取所述接入小区的空口资源。
  36. 如权利要求34所述的基站，其特征在于，所述处理器执行的获取用于进行所述UE的连接建立的接入小区的空口资源的程序，包括：
    向与目标基站发送资源请求；
    接收所述目标基站响应所述资源请求返回的响应消息，所述响应消息携带有所述接入小区的空口资源，所述接入小区是所述目标基站下的用于进行所述UE的连接建立的小区。
  37. 如权利要求34-36中任一项所述的基站，其特征在于，所述处理器在执行接收用户设备UE在所述UE当前驻留的驻留小区内发起的连接建立请求消息的程序之前，还用于执行如下程序：
    广播***信息块SIB信息或者专用消息，其中，所述SIB信息或者专用消息包括多个小区的频点信息；
    其中，所述连接建立请求消息携带有所述多个小区的测量结果，所述多个小区的测量结果用于所述基站选择所述UE对应的接入小区；或者
    所述连接建立请求携带有所述多个小区中至少一个候选小区的测量结果，所述测量结果用于所述基站识别所述UE对应的接入小区，所述至少一个候选小区为所述UE根据测量结果从所述多个小区中选择的所述UE能够进行建立连接的至少一个候选小区。
  38. 如权利要求34-36中任一项所述的基站，其特征在于，所述连接建立请求消息携带有如下至少一项：
    所述UE支持的频点能力和测量结果。
  39. 如权利要求34-38中任一项所述的基站，其特征在于，所述连接建立消息还包括如下至少一项：
    无线承载RB的映射信息、RB的配置信息、用于上行发送的定时调整TA信息、物理层资源信息和物理随机接入信道PRACH的签名序列信息。
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