WO2015168894A1 - 承载配置装置、方法以及通信系统 - Google Patents

承载配置装置、方法以及通信系统 Download PDF

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Publication number
WO2015168894A1
WO2015168894A1 PCT/CN2014/077015 CN2014077015W WO2015168894A1 WO 2015168894 A1 WO2015168894 A1 WO 2015168894A1 CN 2014077015 W CN2014077015 W CN 2014077015W WO 2015168894 A1 WO2015168894 A1 WO 2015168894A1
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WO
WIPO (PCT)
Prior art keywords
bearer
base station
user equipment
data transmission
uplink data
Prior art date
Application number
PCT/CN2014/077015
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English (en)
French (fr)
Inventor
常宁娟
徐海博
Original Assignee
富士通株式会社
常宁娟
徐海博
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.)
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Application filed by 富士通株式会社, 常宁娟, 徐海博 filed Critical 富士通株式会社
Priority to PCT/CN2014/077015 priority Critical patent/WO2015168894A1/zh
Publication of WO2015168894A1 publication Critical patent/WO2015168894A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a bearer configuration apparatus, method, and communication system.
  • dual connectivity (DC) technology can be used to improve user equipment (UE, User Equipment) throughput and enhance user equipment mobility in a heterogeneous network. Robustness and reduced network signaling overhead.
  • UE User Equipment
  • FIG. 1 is a schematic diagram of a dual connectivity technology.
  • a base station can configure a DC for a UE with multiple transmission functions in a connected state.
  • the DC is configured, the UE is provided with radio resources for data transmission using a scheduler located on two different eNBs (eNode Bs), and the two eNBs are usually connected through a non-ideal backhaul X2 interface.
  • eNode Bs eNode Bs
  • the base station that maintains the Sl-MME interface with the Mobility Management Entity (MME) is called the primary base station (MeNB, Master eNB), and the serving cell associated with the M MeNB constitutes the primary cell group (MCG, Master Cell Group);
  • MCG Mobility Management Entity
  • Another base station that is only used to provide additional radio resources is called a secondary base station (SeNB).
  • the serving cell associated with the SeNB forms a secondary cell group (SCG).
  • a bearer refers to a data transmission channel and its configuration, and different bearers may have different configurations for transmitting different quality of service (QoS, Quality of Service).
  • QoS Quality of Service
  • a bearer on a radio interface is called a radio bearer (RB).
  • the bearer of the user plane is called a data radio bearer (DRB)
  • DRB data radio bearer
  • SRB radio bearer
  • RBs can be classified into three types: MCG bearers, SCG bearers, and split bearers.
  • the 2 is a schematic diagram of a bearer corresponding radio protocol stack under dual connectivity.
  • the MCG bearer refers to only using MeNB resources for corresponding data transmission and its corresponding radio protocol stack is only located at the MeNB.
  • the SCG bearer refers to the bearer that uses only the SeNB resources for the corresponding data transmission and the corresponding radio protocol stack is only located on the SeNB.
  • the split bearer refers to the resources of the MeNB and the SeNB simultaneously and the corresponding radio protocol stack exists on the MeNB. There are also bearers on the SeNB.
  • the user plane radio protocol stack includes a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC), a Medium Access Control (MAC), and a Physical Layer (PHY). , Physical).
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • PHY Physical Layer
  • the network side may determine, according to the network load and the service attribute of the UE, which type of bearer is configured for the UE service, that is, whether the service of the UE is configured to be transmitted on the MCG bearer, or the SCG bearer.
  • the transmission is performed on the transmission or in the split bearer.
  • the MeNB link refers to the link between the MeNB and the UE
  • the SeNB link refers to the link between the SeNB and the UE.
  • the uplink RLC layer feedback information corresponding to the downlink service transmitted on different links is transmitted on the corresponding link, that is, the downlink data transmitted on the MeNB link, and the corresponding uplink RLC layer feedback information is transmitted on the MeNB link.
  • the downlink data transmitted on the SeNB link, the corresponding uplink RLC layer feedback information is transmitted on the SeNB link.
  • split bearers are generally considered to be bidirectional, that is, have both uplink and downlink services.
  • downlink services of split bearers can be transmitted simultaneously on the MeNB link and the SeNB link.
  • the uplink service of the split bearer does not use the split transmission mode, that is, the uplink service cannot be transmitted on the MeNB link and the SeNB link at the same time.
  • the uplink service is transmitted on the MeNB link or on the SeNB link.
  • the uplink data transmission path for the split bearer under the DC is determined by the network layer. Further, the network side may determine the uplink data transmission path of the split bearer according to the quality of service requirements of the bearer, the uplink quality assessment of the MeNB and the SeNB, the load information of the SeNB, and the like. Whether the uplink data of the split bearer is transmitted on the SeNB link directly affects the resource reservation and wireless configuration of the bearer by the SeNB.
  • the SeNB only needs to reserve the resources required for transmitting the uplink RLC feedback information corresponding to the downlink data for the uplink resource; if the uplink data is transmitted on the SeNB link, the SeNB Need to reserve more uplink resources, including transmitting uplink RLC corresponding to downlink data.
  • the SeNB may perform different radio configurations, such as configuring different UL-AM-RLC parameters, logical channel parameter configuration, and the like.
  • the SeNB knows the uplink data transmission path of the split bearer, that is, the uplink data of the split bearer is transmitted on the SeNB link or transmitted on the MeNB link, reasonable uplink resource reservation and wireless configuration can be performed.
  • the SeNB cannot know the uplink transmission path of the split bearer, and thus cannot perform more reasonable admission control, resource reservation, and radio configuration.
  • Embodiments of the present invention provide a bearer configuration apparatus, method, and communication system.
  • the SeNB obtains the uplink transmission path of the split bearer by using the indication information, thereby performing more reasonable admission control, resource reservation, and wireless configuration.
  • a bearer configuration method is provided, which is applied to a first base station that is connected to a user equipment that has dual connectivity, and the bearer configuration method includes:
  • the first base station sends indication information including an uplink data transmission path of the split bearer in the user equipment to a second base station that is connected to the user equipment.
  • a bearer configuration apparatus which is configured in a first base station that is connected to a user equipment having dual connectivity, and the bearer configuration apparatus includes:
  • the indication sending unit sends the indication information of the uplink data transmission path including the split bearer in the user equipment to the second base station that is connected to the user equipment.
  • a bearer configuration method is provided, which is applied to a second base station that is connected to a user equipment that has dual connectivity, and the bearer configuration method includes:
  • the second base station receives, by the first base station that is connected to the user equipment, indication information that includes an uplink data transmission path of the split bearer in the user equipment.
  • a bearer configuration apparatus which is configured in a second base station that is connected to a user equipment that has dual connectivity, and the bearer configuration apparatus includes:
  • an indication receiving unit configured to receive, by the first base station that is connected to the user equipment, indication information that includes an uplink data transmission path of the split bearer in the user equipment.
  • a communication system includes: a user equipment, configured with dual connectivity;
  • the first base station connected to the user equipment; the first base station sends a splitting The indication information of the uplink data transmission path carried;
  • the second base station is connected to the user equipment; the second base station receives the indication information to obtain an uplink data transmission path of the split bearer in the user equipment.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to execute a bearer configuration method as described above in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a bearer configuration method as described above in a base station.
  • An advantageous effect of the embodiment of the present invention is that the first base station can send the indication information to the second base station, and the second base station can obtain the uplink transmission path of the split bearer, so that the second base station can perform more reasonable admission control and resource reservation. And wireless configuration.
  • Figure 1 is a schematic diagram of a dual connection technique
  • FIG. 2 is a schematic diagram of a wireless protocol stack corresponding to a bearer under dual connectivity
  • 3 is a schematic flowchart of a bearer configuration method according to Embodiment 1 of the present invention
  • 4 is another schematic flowchart of a bearer configuration method according to Embodiment 1 of the present invention
  • FIG. 5 is another schematic flowchart of a bearer configuration method according to Embodiment 1 of the present invention.
  • FIG. 6 is another schematic flowchart of a bearer configuration method according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic flowchart of a bearer configuration method according to Embodiment 2 of the present invention.
  • FIG. 8 is another schematic flowchart of a bearer configuration method according to Embodiment 2 of the present invention.
  • FIG. 9 is another schematic flowchart of a bearer configuration method according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic structural diagram of a bearer configuration apparatus according to Embodiment 3 of the present invention.
  • FIG. 11 is a schematic diagram of another configuration of a bearer configuration apparatus according to Embodiment 3 of the present invention.
  • Figure 12 is a block diagram showing the structure of a base station according to Embodiment 3 of the present invention.
  • FIG. 13 is a schematic structural diagram of a bearer configuration apparatus according to Embodiment 4 of the present invention.
  • Figure 14 is a block diagram showing the configuration of a communication system according to a fifth embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a bearer configuration method according to an embodiment of the present invention. As shown in FIG. 3, the bearer configuration method includes:
  • Step 301 The first base station sends indication information including an uplink data transmission path of the split bearer in the user equipment to the second base station that is connected to the user equipment.
  • the user equipment is connected to at least the first base station and the second base station; wherein the first base station may be the MeNB, and the second base station may be the SeNB, but the invention is not limited thereto.
  • the user equipment can also be connected to more than two base stations.
  • the indication information includes an uplink data transmission path of the split bearer in the user equipment.
  • the indication information may be for the user equipment, ie the indication information may be for the UE specific (UE specific) that is to say for all split bearers for the UE. Or, the indication information is one or more for the user equipment
  • the split-bearing bearer may be specific to the UE, for example, E-RAB (E-UTRAN Radio Access Bearer) specific, that is, the uplink data transmission path configuration of different split bearers may be different.
  • E-RAB E-UTRAN Radio Access Bearer
  • the indication information may be sent by using an X2 interface between the first base station and the second base station.
  • the MeNB decides to split the uplink data transmission path of the bearer, and indicates the uplink data transmission path to the SeNB through the X2 interface.
  • the MeNB sends an indication information of an uplink data transmission path including a split bearer to an SeNB through an X2AP message, so that the SeNB obtains splitting in the user equipment.
  • the upstream data transmission path carried.
  • the presence attribute of the indication information in the message is optional, for example, if the UE configures the split bearer (in the case of the UE specific), or the bearer in the UE is split. In the case of bearer (in the case of the above E-RAB specific), it optionally exists.
  • the indication information may be, for example, in the following form:
  • whether the uplink data transmission path information is carried in the message indicates the uplink transmission path of the split bearer. Specifically, for example, if the associated X2AP message carries the uplink data transmission path information, the SeNB considers that the uplink data of the split bearer is transmitted through the uplink SeNB link; if the associated X2AP message does not carry the uplink data transmission path information, the SeNB It is considered that the uplink data of the split bearer is not transmitted through the SeNB link.
  • the indication information is schematically illustrated by taking only the forms 1 to 3 as an example.
  • the present invention is not limited thereto, and a specific form may be determined according to actual needs.
  • the present invention will be further described by taking the first base station as the MeNB and the second base station as the SeNB as an example.
  • the uplink data transmission path may be sent when a split bearer is established.
  • the MeNB determines an uplink data transmission path of the split bearer, and initiates a corresponding X2 process to establish the split bearer, and in the corresponding X2AP message, The uplink data transmission path information of the split bearer is informed to the SeNB.
  • the X2 process initiated by the MeNB may be an SCG adding process or an SCG modification process triggered by the MeNB.
  • the X2AP message including the uplink data transmission path information may be a SCG addition request message or an SCG modification request message triggered by the MeNB.
  • the X2 process initiated by the MeNB may be an SeNB reconfiguration completion process.
  • the X2AP message containing the uplink data transmission path information may be a SeNB reconfiguration complete message.
  • Step 501 the MeNB establishes a split bearer and determines an uplink data transmission path of the split bearer, and the MeNB sends the indication information including the uplink data transmission path to the SeNB;
  • the MeNB may initiate an X2 process (for example, an SCG addition request or an MeNB-triggered SCG modification request) to establish the split bearer, and send indication information including the uplink data transmission path to the corresponding X2AP message.
  • an X2 process for example, an SCG addition request or an MeNB-triggered SCG modification request
  • SeNB send indication information including the uplink data transmission path to the corresponding X2AP message.
  • Step 502 After receiving the indication information, the SeNB may perform admission control and wireless configuration according to the indication information.
  • the SeNB may determine whether the split bearer can be accepted based on the load status of the cell, the quality of service requirement of the split bearer, and the obtained uplink data transmission path information of the split bearer. If it is determined that the split bearer is not accepted, a reject message is generated. It is worth noting that, for the sake of simplicity, the case where the split bearer is not accepted is not shown in FIG.
  • the corresponding resource reservation is performed, and the corresponding radio configuration is configured to the UE, and configuration information is generated, where the configuration information may include address information allocated to the split bearer and Information such as the wireless configuration of the UE.
  • the uplink data transmission path information sent by the MeNB can also be regarded as a kind of request information, that is, the uplink data transmission that requests the SeNB to perform the split bearer.
  • the uplink transmission path information of the split bearer indicates that the uplink transmission path is a SeNB link.
  • the SeNB may accept the radio bearer when accepting control; it may also consider that the bearer cannot be satisfied and reject the request, that is, reject the establishment of the split bearer.
  • Step 503 In case the SeNB accepts the uplink data transmission of the split bearer, the MeNB receives the SeNB. Configuration information sent.
  • the SeNB may not establish the split bearer. As shown in FIG. 5, if the SeNB does not reject the establishment of the split bearer, the SeNB may send an SCG modification request message including configuration information to the MeNB.
  • the SCG modification request message may include the following information: Can the bearer be accepted, and the split bearer The assigned address information and the wireless configuration to the UE, and the like.
  • Step 504 The MeNB performs wireless configuration on the user equipment.
  • the MeNB can perform radio configuration on the split bearer of the UE in combination with the configuration information of the SeNB, and complete the configuration of the UE on the air interface through the radio resource control (RRC, Radio Resource Control) connection reconfiguration process on the air interface.
  • RRC Radio Resource Control
  • the MeNB may send an RRC connection reconfiguration message to the UE, and receive an RRC connection reconfiguration complete message sent by the UE.
  • Step 505 The MeNB sends feedback information to the SeNB.
  • the MeNB sends an SCG modification feedback message to the SeNB.
  • the uplink data transmission path may be sent when the split bearer is changed.
  • the MeNB decides to change the uplink data transmission path of the split split bearer, initiates a corresponding X2 process to modify the split bearer, and informs the SeNB of the uplink data transmission path information of the split bearer in the corresponding X2AP message.
  • FIG. 6 is another schematic flowchart of a bearer configuration method according to an embodiment of the present invention.
  • the X2 process initiated by the MeNB may be an SCG modification process triggered by the MeNB.
  • the X2AP message including the uplink data transmission path information may be an SCG modification request message triggered by the MeNB.
  • the X2 process initiated by the MeNB may be a SeNB reconfiguration completion process.
  • the X2AP message containing the uplink data transmission path information may be a SeNB reconfiguration complete message.
  • Step 601 the MeNB changes the uplink data transmission path of the split bearer, and the MeNB sends the indication information including the changed uplink data transmission path to the SeNB;
  • the MeNB may initiate an SCG modification procedure triggered by the MeNB to modify the split bearer, and update the SCG modification request message triggered by the corresponding MeNB.
  • the uplink data transmission path information of the split bearer is informed to the SeNB.
  • Step 602 After receiving the indication information, the SeNB may perform admission control and wireless configuration according to the indication information.
  • the SeNB may determine whether the updated uplink data transmission path can be accepted based on the load status of the cell, the quality of service requirement of the bearer, and the obtained uplink data transmission path information of the split bearer. Such as If it is determined that the updated uplink data transmission path cannot be accepted, the rejection information is generated. It is worth noting that, for the sake of simplicity, the unacceptable situation is not shown in FIG.
  • the saved uplink data transmission path information is updated, corresponding resource reservation is performed according to the updated information, and the corresponding wireless configuration is configured to the UE.
  • Step 603 When the SeNB accepts the uplink data transmission of the split bearer, the MeNB receives the configuration information sent by the SeNB.
  • the SeNB may send an SCG modification request to the MeNB, including the wireless configuration of the updated UE.
  • Step 604 The MeNB performs wireless configuration on the user equipment.
  • the BP and the MeNB can perform the radio configuration on the split bearer of the UE in combination with the configuration information of the SeNB, and complete the configuration of the UE on the air interface through the RRC connection reconfiguration process on the air interface.
  • the MeNB may send an RRC connection reconfiguration message to the UE, and receive an RRC connection reconfiguration complete message sent by the UE.
  • Step 605 The MeNB sends feedback information to the SeNB.
  • the MeNB sends an SCG modification feedback message to the SeNB.
  • the present invention is only described by taking the split bearer setup procedure and the split bearer change procedure as an example.
  • the present invention is not limited thereto, and the MeNB may also perform the uplink data transmission path of the split bearer in other flows. Send to the SeNB.
  • the first base station can send the indication information to the second base station, and the second base station can obtain the uplink transmission path of the split bearer, so that the second base station can perform more reasonable admission control, resource reservation, and wireless configuration. .
  • Example 2
  • the embodiment of the invention provides a bearer configuration method, which is applied to a second base station that is connected to a user equipment with dual connectivity.
  • the same contents as those of Embodiment 1 will not be described again.
  • FIG. 7 is a schematic flowchart of a bearer configuration method according to an embodiment of the present invention. As shown in FIG. 7, the bearer configuration method includes:
  • Step 701 The second base station receives, by the first base station that is connected to the user equipment, indication information that includes an uplink data transmission path of the split bearer in the user equipment.
  • the method may further include: Step 702: The second base station performs admission control according to the indication information.
  • the second base station may be specifically configured to: determine, according to a load condition of the cell, a quality of service requirement of the split bearer, and the indication information, whether to accept uplink data transmission of the split bearer, and determine the accepted
  • the corresponding resource reservation is performed in the case, and the corresponding wireless configuration is configured to the user equipment.
  • the SeNB may receive the indication information in the X2 process initiated by the MeNB (for example, the SCG adding process or the SCG modification process triggered by the MeNB), as described in FIG. 5 in Embodiment 1.
  • the indication information may also be received in an X2 procedure initiated by the MeNB (e.g., a SCG modification procedure triggered by the MeNB), as described in Figure 6 of Embodiment 1.
  • the SeNB may also be allowed to initiate the uplink data transmission path of the split bearer. Change request.
  • FIG. 8 is another schematic flowchart of a bearer configuration method according to an embodiment of the present invention. As shown in FIG. 8, the method includes:
  • Step 801 The SeNB sends a change request to the MeNB to change the uplink data transmission path of the split bearer.
  • the SeNB may initiate an SCG modification request process, where the uplink data transmission path information is carried, and the uplink data transmission path is requested to be modified.
  • the MeNB can decide whether to accept the change.
  • Step 802 When the MeNB accepts the change, the MeNB performs wireless configuration on the user equipment.
  • the MeNB may complete the configuration of the UE by using the air interface RRC connection reconfiguration process by using the updated uplink data transmission path information and the corresponding radio configuration. As shown in FIG. 8, the MeNB may send an RRC connection reconfiguration message to the UE, and receive an RRC connection reconfiguration complete message sent by the UE.
  • Step 803 The MeNB sends feedback information to the SeNB.
  • the MeNB sends an SCG modification feedback message to the SeNB.
  • the SeNB may perform admission control on the uplink data transmission and the downlink data transmission of the split bearer respectively.
  • FIG. 9 is another schematic flowchart of a bearer configuration method according to an embodiment of the present invention. As shown in FIG. 9, the method includes: Step 901: The MeNB initiates an SCG adding process or an SCG modification process triggered by the MeNB, and establishes or modifies a split bearer. The uplink data transmission path information of the split bearer is carried.
  • Step 902 The SeNB performs the admission control of the split bearer according to the received uplink data path information of the split bearer.
  • the admission control may be performed separately by distinguishing the uplink and downlink.
  • the SeNB accepts the split bearer; if the SeNB only receives the split bearer The downlink does not accept the uplink of the split bearer, and the SeNB rejects the uplink path request of the split bearer; if the SeNB does not accept the downlink (or downlink and uplink) of the split bearer, the SeNB rejects the split bearer.
  • Step 903 the SeNB may return a response message, where the response message includes split bearer acceptance information, where the information is used to indicate whether the split bearer is accepted, or whether the uplink of the split bearer is accepted. If the response message sent by the SeNB indicates that the uplink of the split bearer is not accepted, the MeNB may determine the split bearer uplink data transmission path before the MeNB receives the message, that is, the MeNB modifies the split bearer uplink data transmission path to the MeNB chain. road.
  • the first base station can send the indication information to the second base station, and the second base station can obtain the uplink transmission path of the split bearer, so that the second base station can perform more reasonable admission control, resource reservation, and wireless configuration. .
  • Example 3
  • the embodiment of the invention provides a bearer configuration device, which is configured in a first base station that is connected to a user equipment having dual connectivity.
  • the embodiment of the present invention corresponds to the bearer configuration method of Embodiment 1, and the same content is not described herein again.
  • the bearer configuration apparatus 1000 includes: an indication sending unit 1001, and sends indication information including an uplink data transmission path of a split bearer in a user equipment to A second base station that is connected to the user equipment.
  • the indication information is for the user equipment, or the indication information is for one or more split bearers of the user equipment.
  • the indication sending unit 1001 may send indication information through an X2 interface between the first base station and the second base station.
  • the bearer configuration apparatus 1000 may further include: a split bearer establishing unit 1002, establishing a split bearer and determining an uplink data transmission path of the split bearer.
  • the bearer configuration apparatus 1000 may further include: an information receiving unit 1003, configured to receive configuration information sent by the second base station; and a wireless configuration unit 1004, in a case where the second base station receives uplink data transmission of the split bearer, The user equipment performs wireless configuration; and the information feedback unit 1005 sends feedback information to the second base station.
  • FIG. 11 is another schematic diagram of a bearer configuration apparatus according to an embodiment of the present invention.
  • the bearer configuration apparatus 1100 includes: an indication transmitting unit 1001, as described above.
  • the bearer configuration apparatus 1100 may further include: a split bearer changing unit 1102, configured to change an uplink data transmission path of the split bearer; and the indication sending unit 1001 is further configured to include the changed uplink data transmission path.
  • the indication information is sent to the second base station.
  • the bearer configuration apparatus 1100 may further include: an information receiving unit 1003, configured to receive configuration information sent by the second base station; and a wireless configuration unit 1004, in a case where the second base station receives the uplink data transmission of the split bearer, The user equipment performs wireless configuration; and the information feedback unit 1005 sends feedback information to the second base station.
  • FIG. 12 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • base station 1200 can include: a central processing unit (CPU) 200 and memory 210; and memory 210 coupled to central processor 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200 to receive various information transmitted by the user equipment and to transmit the request information to the user equipment.
  • the functionality of the bearer configuration device 1000 or 1100 can be integrated into the central processor
  • the central processing unit 200 can be configured to implement the bearer configuration method as described in Embodiment 1.
  • the bearer configuration device 1000 or 1100 can be configured separately from the central processor.
  • the bearer configuration device 1000 or 1100 can be configured as a chip connected to the central processor 200, and implemented by the control of the central processor. The function of the device 1000 or 1100 is configured.
  • the base station 1200 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the base station 1200 does not have to include all of the components shown in FIG. 12; in addition, the base station 1200 may also include components not shown in FIG. 12, and reference may be made to the prior art.
  • the second base station can obtain the indication information sent by the first base station to the second base station.
  • the uplink transmission path of the bearer is split, so that the second base station can perform more reasonable admission control, resource reservation, and wireless configuration.
  • the embodiment of the invention provides a bearer configuration device, which is configured in a second base station connected to a user equipment having dual connectivity.
  • the embodiment of the present invention corresponds to the bearer configuration method of Embodiment 2, and the same content is not described herein again.
  • FIG. 13 is a schematic diagram of a configuration of a bearer configuration apparatus according to an embodiment of the present invention.
  • the bearer configuration apparatus 1300 includes: an indication receiving unit 1301, which is sent by a first base station that is connected to a user equipment, and includes a user equipment. The indication information of the uplink data transmission path of the split bearer.
  • the bearer configuration device 1300 may further include: an admission control unit 1302 that performs admission control according to the indication information.
  • the receiving control unit 1302 may specifically perform the following processes: determining, according to the load status of the cell, the quality of service requirement of the split bearer, and the indication information, whether to accept uplink data transmission of the split bearer, and determining the admission status.
  • the corresponding resource reservation is performed, and the corresponding wireless configuration is configured to the user equipment.
  • the admission control unit 1302 is further configured to perform admission control on the uplink data transmission and the downlink data transmission of the split bearer respectively.
  • the bearer configuration device 1300 may further include: an information sending unit 1303, configured to send configuration information to the first base station; and a feedback receiving unit 1304, which receives feedback information sent by the first base station.
  • the bearer configuration apparatus 1300 may further include: a change requesting unit 1305, configured to send a change request to the first base station to change the uplink data transmission path of the split bearer.
  • the embodiment of the invention further provides a base station, which includes the bearer configuration device 1300 as described above.
  • the composition of the base station can be referred to FIG.
  • the first base station can send the indication information to the second base station, and the second base station can obtain the uplink transmission path of the split bearer, so that the second base station can perform more reasonable admission control, resource reservation, and wireless configuration.
  • Example 5
  • the embodiment of the present invention provides a communication system, and the same content as Embodiments 1 to 4 will not be described again.
  • FIG. 14 is a schematic structural diagram of a communication system according to an embodiment of the present invention. As shown in FIG. 14, the communication system is shown in FIG. 1400 includes:
  • the first base station 1402 is connected to the user equipment 1401; the first base station 1402 sends indication information including an uplink data transmission path of the split bearer in the user equipment 1401;
  • the second base station 1403 is connected to the user equipment 1401.
  • the second base station 1403 receives the indication information to obtain an uplink data transmission path of the split bearer in the user equipment 1401.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to execute the bearer configuration method described in Embodiment 1 or 2 in the base station.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the bearer configuration method described in Embodiment 1 or 2 in a base station.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein. ), an application specific integrated circuit (AS), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof.
  • DSP digital signal processor
  • AS application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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Abstract

本发明实施例提供一种承载配置装置、方法以及通信系统。所述承载配置方法包括:与用户设备进行连接的第一基站将包含所述用户设备中分裂承载的上行数据传输路径的指示信息发送给与所述用户设备进行连接的第二基站。通过本发明实施例,第二基站可以获得分裂承载的上行传输路径,由此第二基站可以进行更为合理的接纳控制、资源预留和无线配置。

Description

承载配置装置、 方法以及通信系统 技术领域
本发明涉及一种通信技术领域,特别涉及一种承载配置装置、方法以及通信系统。
背景技术
目前,在部署了小小区(small cell)的异构网络中,双连接(DC, Dual connectivity) 技术可以用于提高用户设备 (UE, User Equipment) 吞吐量, 增强异构网络下的用户 设备移动的鲁棒性以及降低网络信令开销等。
图 1是双连接技术的一示意图, 如图 1所示, 基站可以对处于连接态的具有多收 发功能的 UE配置 DC。 当配置了 DC时, 使用位于两个不同的 eNB (eNode B)上的 调度器为 UE提供无线资源进行数据传输, 两个 eNB之间通常通过非理想回程 X2接 口进行连接。
其中, 和移动管理实体 (MME, Mobility Management Entity) 保持 Sl-MME接 口的基站称为主基站 (MeNB, Master eNB), 禾 Q MeNB关联的服务小区组成主小区 组 (MCG, Master Cell Group); 另一个仅用于提供额外无线资源的基站称为辅基站 ( SeNB, secondary eNB ), 相应地, 和 SeNB关联的服务小区组成辅小区组 (SCG, Secondary Cell Group )。
在演进的通用陆地无线接入网 (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) 中, 承载指数据传输通道及其配置, 不同的承载可以有不同的配置 以用于传输不同服务质量(QoS, Quality of Service)需求的业务。 无线接口上的承载 称为无线承载 (RB, Radio Bearer) , 其中, 用户面承载称为数据无线承载 (DRB, Data Radio Bearer), 控制面承载称为信令无线承载 (SRB, Signaling Radio Bearer) 0 当配置了双连接时, RB可以分为三种: MCG承载, SCG承载和分裂承载(split bearer)。
图 2是双连接下的承载对应的无线协议栈的一示意图, 如图 2所示, 从协议栈的 角度, MCG承载指仅使用 MeNB资源进行相应数据传输且其对应的无线协议栈仅位 于 MeNB上的承载, SCG承载指仅使用 SeNB资源进行相应数据传输且其对应的无 线协议栈仅位于 SeNB上的承载,分裂承载指同时使用 MeNB和 SeNB的资源且其对 应的无线协议栈既存在于 MeNB上也存在 SeNB上的承载。 用户面无线协议栈包括分组数据汇聚协议层 (PDCP, Packet Data Convergence Protocol), 无线链路控制层 (RLC, Radio Link Control), 媒介接入控制层 (MAC, Medium Access Control) 和物理层 (PHY, Physical)。
对配置了 DC的用户设备, 网络侧可以根据网络负载和该 UE的业务属性决定该 UE业务配置为哪种类型的承载, 即是否将该 UE的业务配置为在 MCG承载上传输, 或 SCG承载上传输或者采用分裂承载的方式传输。
其中, MeNB链路指 MeNB和 UE之间的链路, SeNB链路指 SeNB和 UE之间 的链路。 在不同链路上传输的下行业务对应的上行 RLC层反馈信息在相对应的链路 上传输,即在 MeNB链路上传输的下行数据,其对应的上行 RLC层反馈信息在 MeNB 链路上传输;在 SeNB链路上传输的下行数据,其对应的上行 RLC层反馈信息在 SeNB 链路上传输。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
发明人发现: 分裂承载通常认为是双向的, 即同时具有上行业务和下行业务。 目 前在 3GPP标准中,分裂承载的下行业务可以同时在 MeNB链路和 SeNB链路上传输。 但是, 分裂承载的上行业务不采用分裂传输方式, 即上行业务无法同时在 MeNB 链 路和 SeNB链路上传输, 根据网络侧的配置, 上行业务在 MeNB链路或者在 SeNB链 路上传输。
对于 DC下分裂承载的上行数据传输路径, 即通过 MeNB链路传输或通过 SeNB 链路传输, 是由网络层进行决策的。 更进一步, 网络侧可以根据该承载的服务质量要 求、 MeNB和 SeNB的上行链路质量评估、 SeNB的负载信息等来决策分裂承载的上 行数据传输路径。 分裂承载的上行数据是否在 SeNB链路上传输会直接影响 SeNB对 该承载的资源预留和无线配置等。
例如, 若上行数据不在 SeNB链路上传输, 则对于上行资源, SeNB仅需要预留 传输下行数据对应的上行 RLC反馈信息所需的资源即可; 若上行数据在 SeNB链路 上传输, 则 SeNB需要预留更多的上行资源, 包括传输下行数据对应的上行 RLC反 馈信息和上行业务所需的上行资源。 此外, 根据上行数据是否在 SeNB链路上传输, SeNB可以进行不同的无线配置, 例如配置不同的 UL-AM-RLC参数, 逻辑信道参数 配置等。
根据上述内容, SeNB如果知道分裂承载的上行数据传输路径, 即分裂承载的上 行数据在 SeNB链路上传输还是在 MeNB链路上传输,就可以进行合理的上行资源预 留和无线配置。 但是, 当前机制中 SeNB无法知道分裂承载的上行传输路径, 由此不 能进行更为合理的接纳控制、 资源预留和无线配置。
本发明实施例提供一种承载配置装置、 方法以及通信系统。 SeNB通过指示信息 获得分裂承载的上行传输路径, 由此可以进行更为合理的接纳控制、 资源预留和无线 配置。
根据本发明实施例的第一个方面, 提供一种承载配置方法, 应用于与具有双连接 的用户设备进行连接的第一基站中, 所述承载配置方法包括:
第一基站将包含所述用户设备中分裂承载的上行数据传输路径的指示信息发送 给与所述用户设备进行连接的第二基站。
根据本发明实施例的第二个方面, 提供一种承载配置装置, 配置于与具有双连接 的用户设备进行连接的第一基站中, 所述承载配置装置包括:
指示发送单元,将包含所述用户设备中分裂承载的上行数据传输路径的指示信息 发送给与所述用户设备进行连接的第二基站。
根据本发明实施例的第三个方面, 提供一种承载配置方法, 应用于与具有双连接 的用户设备进行连接的第二基站中, 所述承载配置方法包括:
第二基站接收与所述用户设备进行连接的第一基站发送的、包含所述用户设备中 分裂承载的上行数据传输路径的指示信息。
根据本发明实施例的第四个方面, 提供一种承载配置装置, 配置于与具有双连接 的用户设备进行连接的第二基站中, 所述承载配置装置包括:
指示接收单元, 接收与所述用户设备进行连接的第一基站发送的、包含所述用户 设备中分裂承载的上行数据传输路径的指示信息。
根据本发明实施例的第五个方面, 提供一种通信系统, 所述通信系统包括: 用户设备, 被配置了双连接;
第一基站, 与所述用户设备连接; 所述第一基站发送包含所述用户设备中分裂承 载的上行数据传输路径的指示信息;
第二基站, 与所述用户设备连接; 所述第二基站接收所述指示信息, 以获得所述 用户设备中分裂承载的上行数据传输路径。
根据本发明实施例的又一个方面, 提供一种计算机可读程序, 其中当在基站中执 行所述程序时, 所述程序使得计算机在所述基站中执行如上所述的承载配置方法。
根据本发明实施例的又一个方面, 提供一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算机在基站中执行如上所述的承载配置方法。
本发明实施例的有益效果在于, 通过第一基站向第二基站发送指示信息, 第二基 站可以获得分裂承载的上行传输路径, 由此第二基站可以进行更为合理的接纳控制、 资源预留和无线配置。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。应该理解, 本发明的实施方式在范围上并不因而受到限制。 在 所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的 特征。
应该强调, 术语 "包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
参照以下的附图可以更好地理解本发明的很多方面。 附图中的部件不是成比例 绘制的, 而只是为了示出本发明的原理。 为了便于示出和描述本发明的一些部分, 附 图中对应部分可能被放大或缩小。
在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个 其它附图或实施方式中示出的元素和特征相结合。 此外, 在附图中, 类似的标号表示 几个附图中对应的部件, 并可用于指示多于一种实施方式中使用的对应部件。
图 1是双连接技术的一示意图;
图 2是双连接下的承载对应的无线协议栈的一示意图;
图 3是本发明实施例 1的承载配置方法的一流程示意图; 图 4是本发明实施例 1的承载配置方法的另一流程示意图;
图 5是本发明实施例 1的承载配置方法的另一流程示意图;
图 6是本发明实施例 1的承载配置方法的另一流程示意图;
图 7是本发明实施例 2的承载配置方法的一流程示意图;
图 8是本发明实施例 2的承载配置方法的另一流程示意图;
图 9是本发明实施例 2的承载配置方法的另一流程示意图;
图 10是本发明实施例 3的承载配置装置的一构成示意图;
图 11是本发明实施例 3的承载配置装置的另一构成示意图;
图 12是本发明实施例 3的基站的一构成示意图;
图 13是本发明实施例 4的承载配置装置的一构成示意图;
图 14是本发明实施例 5的通信系统的一构成示意图。
具体实施方式
参照附图, 通过下面的说明书, 本发明的前述以及其它特征将变得明显。 在说明 书和附图中, 具体公开了本发明的特定实施方式, 其表明了其中可以采用本发明的原 则的部分实施方式, 应了解的是, 本发明不限于所描述的实施方式, 相反, 本发明包 括落入所附权利要求的范围内的全部修改、 变型以及等同物。
实施例 1
本发明实施例提供一种承载配置方法,应用于与具有双连接的用户设备进行连接 的第一基站中。 图 3是本发明实施例的承载配置方法的一流程示意图, 如图 3所示, 该承载配置方法包括:
步骤 301, 第一基站将包含用户设备中分裂承载的上行数据传输路径的指示信息 发送给与该用户设备进行连接的第二基站。
在本实施例中, 用户设备至少与第一基站和第二基站进行连接; 其中第一基站可 以是 MeNB, 第二基站可以是 SeNB, 但本发明不限于此。 此外, 用户设备还可以与 两个以上的基站进行连接。
在本实施例中, 指示信息包含有用户设备中分裂承载的上行数据传输路径。该指 示信息可以是针对用户设备的,即该指示信息可以是针对该 UE特定的(UE specific ) 也就是说针对该 UE的所有分裂承载。 或者, 该指示信息是针对用户设备的一个或多 个分裂承载的; 可以是针对 UE的分裂承载特定的, 例如 E-RAB (E-UTRAN Radio Access Bearer) specific, 即不同分裂承载的上行数据传输路径配置可以不同。
在本实施例中, 可以通过第一基站和第二基站之间的 X2接口发送指示信息。 例 如, MeNB决策分裂承载的上行数据传输路径, 并将该上行数据传输路径通过 X2接 口指示给 SeNB。
图 4是本发明实施例的承载配置方法的另一流程示意图, 如图 4所示, MeNB通 过 X2AP 消息将包含分裂承载的上行数据传输路径的指示信息发送给 SeNB, 使得 SeNB获得用户设备中分裂承载的上行数据传输路径。
在本实施例中, 指示信息在消息中的存在属性为可选 (optional), 例如在 UE配 置了分裂承载的情况下(对上述 UE specific的情况)可选地存在, 或者 UE中承载为 分裂承载的情况下 (对上述 E-RAB specific的情况) 可选地存在。
在具体实施时, 该指示信息例如可以是下述形式:
> 形式 1 :
Figure imgf000008_0001
> 形式 3:
该形式 3 中以消息中是否携带该上行数据传输路径信息来指示分裂承载的上行 传输路径。 具体地, 例如若关联的 X2AP 消息中携带了上行数据传输路径信息, 则 SeNB认为该分裂承载的上行数据通过上行 SeNB链路传输; 若关联的 X2AP消息中 不携带上行数据传输路径信息, 则 SeNB认为该分裂承载的上行数据不通过 SeNB链 路传输。
值得注意的是, 以上仅以形式 1至 3为例对指示信息进行了示意性说明, 但本发 明不限于此, 可以根据实际需要确定具体的形式。 以下以第一基站为 MeNB, 第二基站为 SeNB为例, 对本发明进行进一步说明。 在一个实施方式中, 可以在建立分裂承载时发送该上行数据传输路径。 MeNB决 定将一个或多个传统承载或 MCG承载变更为分裂承载时, MeNB决策该分裂承载的 上行数据传输路径, 并发起相应的 X2流程来建立该分裂承载, 以及在相应的 X2AP 消息中将该分裂承载的上行数据传输路径信息告知 SeNB。
图 5是本发明实施例的承载配置方法的另一流程示意图, 如图 5所示, MeNB发 起的 X2流程可以是 SCG添加流程或者 MeNB触发的 SCG修改流程。包含上行数据 传输路径信息的 X2AP消息可以是 SCG添加请求消息或者 MeNB触发的 SCG修改请 求消息。 此外, MeNB发起的 X2流程可以是 SeNB重配置完成流程。 包含上行数据 传输路径信息的 X2AP消息可以是 SeNB重配置完成消息。
步骤 501, MeNB 建立分裂承载并确定该分裂承载的上行数据传输路径, 并且 MeNB将包含该上行数据传输路径的指示信息发送给 SeNB;
如图 5所示, MeNB可以发起 X2流程(例如, SCG添加请求或者 MeNB触发的 SCG修改请求) 来建立该分裂承载, 并在相应的 X2AP消息中将包含该上行数据传 输路径的指示信息发送给 SeNB。
步骤 502, SeNB接收到该指示信息后, 可以根据该指示信息进行接纳控制和无 线配置。
其中, SeNB可以基于小区的负载状况、 该分裂承载的服务质量要求和获取的分 裂承载的上行数据传输路径信息等, 来判断能否接纳该分裂承载。如果确定不接纳该 分裂承载, 则生成拒绝信息。 值得注意的是, 为了简单起见, 图 5中没有示出不接纳 分裂承载的情况。
如图 5所示, 如果确定接纳该分裂承载, 则进行相应的资源预留, 并配置相应的 无线配置给 UE, 以及生成配置信息, 该配置信息可以包括为该分裂承载分配的地址 信息和给 UE的无线配置等信息。
在该步骤中, MeNB发送的上行数据传输路径信息也可以看做是一种请求信息, 即请求 SeNB进行分裂承载的上行数据传输。 该分裂承载的上行传输路径信息, 例如 指示上行传输路径是 SeNB链路。 SeNB可以在接纳控制时接纳该无线承载; 也可以 认为无法满足该承载而拒绝该请求, 即拒绝该分裂承载的建立。
步骤 503, 在 SeNB接纳分裂承载的上行数据传输的情况下, MeNB接收 SeNB 发送的配置信息。
其中, 如果 SeNB拒绝该分裂承载的建立, 则 MeNB可以不建立该分裂承载。 如图 5所示, 如果 SeNB没有拒绝该分裂承载的建立, SeNB可以向 MeNB发送 包含配置信息的 SCG修改请求消息; 其中 SCG修改请求消息可以包括如下信息: 能 否接纳该承载、 为该分裂承载分配的地址信息和给 UE的无线配置等。
步骤 504, MeNB对用户设备进行无线配置。
即, MeNB结合 SeNB的配置信息, 可以对 UE的该分裂承载进行无线配置, 通 过空口上的无线资源控制 (RRC, Radio Resource Control) 连接重配置流程完成空口 上对 UE的配置。如图 5所示, MeNB可以向 UE发送 RRC连接重配置消息, 并接收 UE发送的 RRC连接重配置完成消息。
步骤 505, MeNB向 SeNB发送反馈信息。
如图 5所示, MeNB向 SeNB发送 SCG修改反馈消息。
在另一个实施方式中, 可以在更改分裂承载时发送该上行数据传输路径。 MeNB 决定更改分裂分裂承载的上行数据传输路径,发起相应的 X2流程来修改该分裂承载, 并在相应的 X2AP消息中将该分裂承载的上行数据传输路径信息告知 SeNB。
图 6是本发明实施例的承载配置方法的另一流程示意图, 如图 6所示, MeNB发 起的 X2 流程可以是 MeNB 触发的 SCG修改流程。 包含上行数据传输路径信息的 X2AP消息可以是 MeNB触发的 SCG修改请求消息。此外, MeNB发起的 X2流程可 以是 SeNB重配置完成流程。 包含上行数据传输路径信息的 X2AP消息可以是 SeNB 重配置完成消息。
步骤 601, MeNB对分裂承载的上行数据传输路径进行变更, 并且 MeNB将包含 变更后的上行数据传输路径的指示信息发送给 SeNB;
如图 6所示, MeNB决定更改该分裂承载的上行数据传输路径后,可以发起 MeNB 触发的 SCG修改流程来修改该分裂承载,并在相应的 MeNB触发的 SCG修改请求消 息中将更新后的该分裂承载的上行数据传输路径信息告知 SeNB。
步骤 602, SeNB接收到该指示信息后, 可以根据该指示信息进行接纳控制和无 线配置。
其中, SeNB可以基于小区的负载状况、 该承载的服务质量要求和获取的分裂承 载的上行数据传输路径信息等, 来判断是否能够接受更新后的上行数据传输路径。如 果确定不能够接受更新后的上行数据传输路径, 则生成拒绝信息。 值得注意的是, 为 了简单起见, 图 6中没有示出不接受的情况。
如图 6所示, 如果能够接受更新后的上行数据传输路径, 则更新所保存的上行数 据传输路径信息,根据更新的信息进行相应的资源预留并配置相应的无线配置给 UE。
步骤 603, 在 SeNB接纳分裂承载的上行数据传输的情况下, MeNB接收 SeNB 发送的配置信息。
如图 6所示, 如果 SeNB接受该分裂承载的更改, 则 SeNB可以向 MeNB发送 SCG修改请求, 其中包括更新后的 UE的无线配置等。
步骤 604, MeNB对用户设备进行无线配置。
BP , MeNB结合 SeNB的配置信息, 可以对 UE的该分裂承载进行无线配置, 通 过空口上的 RRC连接重配置流程完成空口上对 UE的配置。 如图 6所示, MeNB可 以向 UE发送 RRC连接重配置消息, 并接收 UE发送的 RRC连接重配置完成消息。
步骤 605, MeNB向 SeNB发送反馈信息。
如图 6所示, MeNB向 SeNB发送 SCG修改反馈消息。
值得注意的是, 以上仅以分裂承载建立流程和分裂承载更改流程为例, 对本发明 进行了示意性说明; 但本发明不限于此, MeNB还可以在其他流程中将分裂承载的上 行数据传输路径发送给 SeNB。
由上述实施例可知, 通过第一基站向第二基站发送指示信息, 第二基站可以获得 分裂承载的上行传输路径, 由此第二基站可以进行更为合理的接纳控制、 资源预留和 无线配置。 实施例 2
本发明实施例提供一种承载配置方法,应用于与具有双连接的用户设备进行连接 的第二基站中。 与实施例 1相同的内容不再赘述。
图 7是本发明实施例的承载配置方法的一流程示意图, 如图 7所示, 该承载配置 方法包括:
步骤 701, 第二基站接收与用户设备进行连接的第一基站发送的、 包含该用户设 备中分裂承载的上行数据传输路径的指示信息。
如图 7所示, 该方法还可以包括: 步骤 702, 第二基站根据指示信息进行接纳控制。
在本实施例中, 第二基站具体可以进行如下处理: 基于小区的负载状况、 所述分 裂承载的服务质量要求以及所述指示信息判断是否接纳所述分裂承载的上行数据传 输, 在确定接纳的情况下进行相应的资源预留, 以及配置相应的无线配置给所述用户 设备。
以下以第一基站为 MeNB, 第二基站为 SeNB为例, 对本发明进行进一步说明。 在本实施例中, SeNB可以在 MeNB发起的 X2流程 (例如 SCG添加流程或者 MeNB触发的 SCG修改流程) 中接收该指示信息, 如实施例 1中图 5所述。 也可以 在 MeNB发起的 X2流程 (例如 MeNB触发的 SCG修改流程) 中接收该指示信息, 如实施例 1中图 6所述。
在一个实施方式中, 在 SeNB已经获得无线承载的上行数据传输路径(例如采用 实施例 1中的图 5或图 6所示流程) 的基础上, 还可以允许 SeNB发起分裂承载的上 行数据传输路径更改请求。
图 8是本发明实施例的承载配置方法的另一流程示意图, 如图 8所示, 所述方法 包括:
步骤 801, SeNB向 MeNB发送更改请求以变更分裂承载的上行数据传输路径。 如图 8所示, SeNB可以发起 SCG修改请求流程,其中携带上行数据传输路径信 息, 请求对上行数据传输路径进行修改。 MeNB接收到该更改请求之后, 可以决策是 否接受更改。
步骤 802, 在 MeNB接受更改的情况下, MeNB对用户设备进行无线配置。
BP , MeNB可以将更新后的上行数据传输路径信息和对应的无线配置, 通过空口 RRC连接重配置流程完成对 UE的配置。 如图 8所示, MeNB可以向 UE发送 RRC 连接重配置消息, 并接收 UE发送的 RRC连接重配置完成消息。
步骤 803, MeNB向 SeNB发送反馈信息。
如图 8所示, MeNB向 SeNB发送 SCG修改反馈消息。
在另一个实施方式中, SeNB还可以对分裂承载的上行数据传输和下行数据传输 分别进行接纳控制。
图 9是本发明实施例的承载配置方法的另一流程示意图, 如图 9所示, 所述方法 包括: 步骤 901, MeNB发起 SCG添加流程或者 MeNB触发的 SCG修改流程, 建立或 修改分裂承载。 其中携带分裂承载的上行数据传输路径信息。
步骤 902, SeNB根据接收的分裂承载的上行数据路径信息进行该分裂承载的接 纳控制; 其中, 该接纳控制可区分上下行来分别执行。
具体地,例如若上行数据路径信息指示分裂承载的上行数据传输路径为 SeNB链 路, 并且 SeNB对该分裂承载的上行和下行都可以接受, 则 SeNB接受该分裂承载; 若 SeNB仅接收该分裂承载的下行, 不接受分裂承载的上行, 则 SeNB拒绝该分裂承 载的上行路径请求; 若 SeNB不接受该分裂承载的下行(或者下行和上行), 则 SeNB 拒绝该分裂承载。
步骤 903, 此外, SeNB可以返回响应消息, 该响应消息中包含分裂承载接受信 息, 所述信息用于指示该分裂承载是否被接受、 或该分裂承载的上行是否被接受。 若 SeNB返回的响应消息中指示该分裂承载的上行不被接受, 则 MeNB收到该消息后, 可以决策修改之前的分裂承载上行数据传输路径, 即 MeNB 将分裂承载上行数据传 输路径修改为 MeNB链路。
由上述实施例可知, 通过第一基站向第二基站发送指示信息, 第二基站可以获得 分裂承载的上行传输路径, 由此第二基站可以进行更为合理的接纳控制、 资源预留和 无线配置。 实施例 3
本发明实施例提供一种承载配置装置,配置于与具有双连接的用户设备进行连接 的第一基站中。本发明实施例对应于实施例 1的承载配置方法,相同的内容不再赘述。
图 10是本发明实施例的承载配置装置的一构成示意图, 如图 10所示, 承载配置 装置 1000包括: 指示发送单元 1001, 将包含用户设备中分裂承载的上行数据传输路 径的指示信息发送给与该用户设备进行连接的第二基站。
其中, 所述指示信息是针对用户设备的, 或者所述指示信息是针对所述用户设备 的一个或多个分裂承载的。 所述指示发送单元 1001可以通过第一基站和第二基站之 间的 X2接口发送指示信息。
如图 10所示, 承载配置装置 1000还可以包括: 分裂承载建立单元 1002, 建立 分裂承载并确定所述分裂承载的上行数据传输路径。 如图 10所示, 承载配置装置 1000还可以包括: 信息接收单元 1003, 接收第二 基站发送的配置信息; 无线配置单元 1004, 在第二基站接纳该分裂承载的上行数据 传输的情况下, 对用户设备进行无线配置; 以及信息反馈单元 1005, 向第二基站发 送反馈信息。
图 11是本发明实施例的承载配置装置的另一构成示意图, 如图 11所示, 承载配 置装置 1100包括: 指示发送单元 1001, 如上所述。
如图 11所示, 承载配置装置 1100还可以包括: 分裂承载更改单元 1102, 对分裂 承载的上行数据传输路径进行变更; 以及所述指示发送单元 1001还用于将包含变更 后的上行数据传输路径的指示信息发送给第二基站。
如图 11所示, 承载配置装置 1100还可以包括: 信息接收单元 1003, 接收第二基 站发送的配置信息; 无线配置单元 1004, 在第二基站接纳该分裂承载的上行数据传 输的情况下, 对用户设备进行无线配置; 以及信息反馈单元 1005, 向第二基站发送 反馈信息。
本发明实施例还提供一种基站, 包括如上所述的承载配置装置 1000或 1100。 图 12是本发明实施例的基站的一构成示意图。 如图 12所示, 基站 1200可以包 括: 中央处理器 (CPU) 200和存储器 210; 存储器 210耦合到中央处理器 200。 其 中该存储器 210 可存储各种数据; 此外还存储信息处理的程序, 并且在中央处理器 200的控制下执行该程序, 以接收用户设备发送的各种信息、 并且向该用户设备发送 请求信息。
在一个实施方式中,承载配置装置 1000或 1100的功能可以被集成到中央处理器
200中。 其中, 中央处理器 200可以被配置为实现如实施例 1所述的承载配置方法。
在另一个实施方式中, 承载配置装置 1000或 1100可以与中央处理器分开配置, 例如可以将承载配置装置 1000或 1100配置为与中央处理器 200连接的芯片,通过中 央处理器的控制来实现承载配置装置 1000或 1100的功能。
此外, 如图 12所示, 基站 1200还可以包括: 收发机 220和天线 230等; 其中, 上述部件的功能与现有技术类似, 此处不再赘述。 值得注意的是, 基站 1200也并不 是必须要包括图 12中所示的所有部件; 此外, 基站 1200还可以包括图 12中没有示 出的部件, 可以参考现有技术。
由上述实施例可知, 通过第一基站向第二基站发送指示信息, 第二基站可以获得 分裂承载的上行传输路径, 由此第二基站可以进行更为合理的接纳控制、 资源预留和 无线配置。 实施例 4
本发明实施例提供一种承载配置装置,配置于与具有双连接的用户设备进行连接 的第二基站中。本发明实施例对应于实施例 2的承载配置方法,相同的内容不再赘述。
图 13是本发明实施例的承载配置装置的一构成示意图, 如图 13所示, 承载配置 装置 1300包括: 指示接收单元 1301, 接收与用户设备进行连接的第一基站发送的、 包含用户设备中分裂承载的上行数据传输路径的指示信息。
如图 13所示, 承载配置装置 1300还可以包括: 接纳控制单元 1302, 根据所述 指示信息进行接纳控制。 其中, 所述接纳控制单元 1302具体可以进行如下处理: 基 于小区的负载状况、所述分裂承载的服务质量要求以及所述指示信息判断是否接纳所 述分裂承载的上行数据传输, 在确定接纳的情况下进行相应的资源预留, 以及配置相 应的无线配置给所述用户设备。
在本实施例中, 所述接纳控制单元 1302还可以用于对所述分裂承载的上行数据 传输和下行数据传输分别进行接纳控制。
如图 13所示, 承载配置装置 1300还可以包括: 信息发送单元 1303, 向第一基 站发送配置信息; 反馈接收单元 1304, 接收第一基站发送的反馈信息。
如图 13所示, 承载配置装置 1300还可以包括: 更改请求单元 1305, 向第一基 站发送更改请求以变更分裂承载的上行数据传输路径。
本发明实施例还提供一种基站, 该基站包括如上所述的承载配置装置 1300。 其 中该基站的构成可以参考附图 12。
由上述实施例可知, 通过第一基站向第二基站发送指示信息, 第二基站可以获得 分裂承载的上行传输路径, 由此第二基站可以进行更为合理的接纳控制、 资源预留和 无线配置。 实施例 5
本发明实施例提供一种通信系统, 与实施例 1至 4相同的内容不再赘述。
图 14是本发明实施例的通信系统的一构成示意图, 如图 14所示, 所述通信系统 1400包括:
用户设备 1401, 配置了双连接;
第一基站 1402, 与用户设备 1401连接; 所述第一基站 1402发送包含所述用户 设备 1401中分裂承载的上行数据传输路径的指示信息;
第二基站 1403, 与用户设备 1401连接; 所述第二基站 1403接收所述指示信息, 以获得所述用户设备 1401中分裂承载的上行数据传输路径。
本发明实施例还提供一种计算机可读程序, 其中当在基站中执行所述程序时, 所 述程序使得计算机在所述基站中执行实施例 1或 2所述的承载配置方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在基站中执行实施例 1或 2所述的承载配置方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。本发 明还涉及用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器 等。
针对附图中描述的功能方框中的一个或多个和 /或功能方框的一个或多个组合, 可以实现为用于执行本申请所描述功能的通用处理器、 数字信号处理器 (DSP)、 专 用集成电路 (AS )、 现场可编程门阵列 (FPGA) 或者其它可编程逻辑器件、 分立 门或者晶体管逻辑器件、 分立硬件组件或者其任意适当组合。针对附图描述的功能方 框中的一个或多个和 /或功能方框的一个或多个组合, 还可以实现为计算设备的组合, 例如, DSP和微处理器的组合、 多个微处理器、 与 DSP通信结合的一个或多个微处 理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚, 这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

权利要求书
1、一种承载配置装置, 配置于与具有双连接的用户设备进行连接的第一基站中, 所述承载配置装置包括:
指示发送单元,将包含所述用户设备中分裂承载的上行数据传输路径的指示信息 发送给与所述用户设备进行连接的第二基站。
2、 根据权利要求 1所述的承载配置装置, 其中, 所述指示信息是针对用户设备 的, 或者所述指示信息是针对所述用户设备的一个或多个分裂承载的。
3、 根据权利要求 1所述的承载配置装置, 其中, 所述指示发送单元通过所述第 一基站和所述第二基站之间的 X2接口发送所述指示信息。
4、 根据权利要求 1所述的承载配置装置, 其中, 所述承载配置装置还包括: 分裂承载建立单元, 建立分裂承载并确定所述分裂承载的上行数据传输路径。
5、 根据权利要求 4所述的承载配置装置, 其中, 所述承载配置装置还包括: 信息接收单元, 接收所述第二基站发送的配置信息;
无线配置单元, 在所述第二基站接纳所述分裂承载的上行数据传输的情况下, 对 所述用户设备进行无线配置;
信息反馈单元, 向所述第二基站发送反馈信息。
6、 根据权利要求 1所述的承载配置装置, 其中, 所述承载配置装置还包括: 分裂承载更改单元, 对分裂承载的上行数据传输路径进行变更; 以及
所述指示发送单元还用于将变更后的所述上行数据传输路径的指示信息发送给 所述第二基站。
7、 根据权利要求 6所述的承载配置装置, 其中, 所述承载配置装置还包括: 信息接收单元, 接收所述第二基站发送的配置信息;
无线配置单元, 在所述第二基站接纳所述分裂承载的上行数据传输的情况下, 对 所述用户设备进行无线配置;
信息反馈单元, 向所述第二基站发送反馈信息。
8、一种承载配置装置, 配置于与具有双连接的用户设备进行连接的第二基站中, 所述承载配置装置包括:
指示接收单元, 接收与所述用户设备进行连接的第一基站发送的、包含所述用户 设备中分裂承载的上行数据传输路径的指示信息。
9、 根据权利要求 8所述的承载配置装置, 其中, 所述承载配置装置还包括: 接纳控制单元, 根据所述指示信息进行接纳控制。
10、 根据权利要求 9所述的承载配置装置, 其中, 所述接纳控制单元具体进行如 下处理: 基于小区的负载状况、所述分裂承载的服务质量要求以及所述指示信息判断 是否接纳所述分裂承载的上行数据传输, 在确定接纳的情况下进行相应的资源预留, 以及配置相应的无线配置给所述用户设备。
11、 根据权利要求 9所述的承载配置装置, 其中, 所述接纳控制单元还用于对所 述分裂承载的上行数据传输和下行数据传输分别进行接纳控制。
12、 根据权利要求 9所述的承载配置装置, 其中, 所述承载配置装置还包括: 信息发送单元, 向所述第一基站发送配置信息;
反馈接收单元, 接收所述第一基站发送的反馈信息。
13、 根据权利要求 8所述的承载配置装置, 其中, 所述承载配置装置还包括: 更改请求单元,向所述第一基站发送更改请求以变更所述分裂承载的上行数据传 输路径。
14、 一种通信系统, 所述通信系统包括:
用户设备, 具有双连接;
第一基站, 与所述用户设备连接; 所述第一基站发送包含所述用户设备中分裂承 载的上行数据传输路径的指示信息;
第二基站, 与所述用户设备连接; 所述第二基站接收所述指示信息, 以获得所述 用户设备中分裂承载的上行数据传输路径。
PCT/CN2014/077015 2014-05-08 2014-05-08 承载配置装置、方法以及通信系统 WO2015168894A1 (zh)

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