WO2012019558A1 - 一种分配和确定小区标识的方法、系统及设备 - Google Patents

一种分配和确定小区标识的方法、系统及设备 Download PDF

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Publication number
WO2012019558A1
WO2012019558A1 PCT/CN2011/078355 CN2011078355W WO2012019558A1 WO 2012019558 A1 WO2012019558 A1 WO 2012019558A1 CN 2011078355 W CN2011078355 W CN 2011078355W WO 2012019558 A1 WO2012019558 A1 WO 2012019558A1
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Prior art keywords
cell
base station
allocated
cell identifier
information
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PCT/CN2011/078355
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English (en)
French (fr)
Inventor
杨义
贾贝贝
张大钧
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电信科学技术研究院
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Publication of WO2012019558A1 publication Critical patent/WO2012019558A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system, and device for allocating and determining a cell identity. Background technique
  • LTE-A Long Term Evolution-Advanced
  • Relay Relay
  • Nodes include:
  • Donor-eNB a base station (eNB) that has a radio connection with an RN device, and is written as a donor base station (DeNB); a Relay-Node: an entity existing between a DeNB and a user terminal (UE), abbreviated as a relay node (RN) Equipment
  • eNB base station
  • DeNB donor base station
  • RN relay node
  • UE User terminal.
  • the interface includes:
  • Un interface an interface between the RN device and the DeNB
  • Uu interface Interface between the UE and the serving base station.
  • Wireless links include:
  • Backhaul link The link between the base station and the core network, including the link corresponding to the Un interface.
  • Access link The access link, the link corresponding to the Uu interface.
  • Downlink transmission after the R device is introduced The data that needs to be sent to the UE under the RN device needs to be sent by the DeNB to the RN device via the downlink backhaul link, and then sent by the RN device to the UE via the downlink access link.
  • Uplink transmission after the RN device is introduced The uplink data of the UE under the RN device is first sent by the UE to the RN device via the uplink access link, and then sent by the RN device to the DeNB via the backhaul link.
  • the cell identity under the eNB is configured through an Operation and Maintenance (OAM) device.
  • OAM Operation and Maintenance
  • the RN has its own OAM
  • the DeNB also has its own OAM.
  • the OAM of the two may come from different vendors. If the existing mechanism is used to allocate the cell identifier to the RN device by using the OAM of the RN, RNs of different vendors may be deployed under the same DeNB. In this way, the cell label allocated by the RN OAM of different vendors Knowledge may create conflicts.
  • the current allocation of the cell identifier to the RN device may cause a cell identity conflict. If the RN OAM is manually maintained, the labor cost is large, and the subsequent maintenance is complicated and inefficient. Summary of the invention
  • the embodiments of the present invention provide a method, a system, and a device for allocating and determining a cell identifier, which are used to solve the problem that a cell identity conflict may occur when a cell identifier is allocated to an RN device in the prior art, thereby increasing allocation difficulty and maintenance.
  • the problem of cost is not limited to a cell identity conflict.
  • a method for allocating a cell identifier is provided by the embodiment of the present invention, where the method includes:
  • the base station determines, according to the received cell information from the relay RN device, the number of cell identifiers that need to be allocated for the RN device;
  • the base station allocates a cell identifier to the R device according to the determined quantity, and each of the allocated cell identifiers uniquely identifies one cell;
  • the base station determines allocation information according to the allocated cell identity, and sends the allocation information to the N.
  • a method for determining a cell identifier is provided by an embodiment of the present invention, where the method includes:
  • the relay RN device determines the cell information according to the number of cells to which the cell identifier needs to be allocated, and transmits the cell information to the base station;
  • the allocation information is determined by the base station according to a cell identifier allocated for the RN device.
  • a system for allocating a cell identifier is provided by an embodiment of the present invention, where the system includes:
  • a relay node RN device configured to determine cell information according to the number of cells to which the cell identifier needs to be allocated, and to send the cell information, and determine, according to the received allocation information from the base station, each cell that needs to allocate a cell identifier.
  • a base station configured to determine, according to the received cell information, a quantity of cell identifiers that need to be allocated to the RN device, and allocate a cell identifier to the R device according to the determined quantity, and determine allocation information according to the allocated cell identifier, and The allocation information is sent, and each allocated cell identifier uniquely identifies a cell.
  • a quantity determining module configured to determine, according to the received cell information from the relay node RN device, a quantity of cell identifiers that need to be allocated to the RN device;
  • An allocating module configured to allocate a cell identifier to the RN device according to the determined quantity, and allocate each cell identifier Uniquely identifies a cell;
  • a first sending module configured to determine allocation information according to the allocated cell identifier, and send the allocation information to the RN.
  • a relay node R device provided by an embodiment of the present invention, where the RN device includes:
  • a second sending module configured to determine cell information according to the number of cells to which the cell identifier is allocated, and send the cell information to the base station;
  • An identifier determining module configured to determine, according to the received allocation information from the base station, a cell identifier corresponding to each cell that needs to allocate a cell identifier;
  • the allocation information is determined by the base station according to a cell identifier allocated for the RN device.
  • the RN device determines and sends the cell information according to the number of cells to which the cell identifier needs to be allocated, and the base station determines the number of cell identifiers to be allocated for the RN device according to the cell information, allocates the cell identifier to the RN device, and allocates the cell identifier according to the allocation.
  • the cell identifier determines and sends the allocation information, where each cell identifier uniquely identifies a cell, and the RN device determines the cell identifier corresponding to each cell according to the received allocation information from the base station.
  • the base station allocates a cell identifier to the RN device, the collision of the cell identifiers allocated by the RN OAMs of different vendors is avoided, the manual participation is saved, the maintenance cost is lowered, and the allocation efficiency is improved. Further, Without the participation of OAM, the cell identity allocation can be completed, and the burden of OAM is also reduced.
  • FIG. 1 is a schematic diagram of a network structure after an LTE device is introduced into an LTE-A system in the background art
  • FIG. 2 is a schematic structural diagram of a system for allocating a cell identifier according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of an RN device according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for allocating a cell identifier according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a method for determining a cell identifier according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a method for allocating a cell identifier in a process of establishing an X2 interface according to an embodiment of the present disclosure
  • FIG. 8 is a schematic flowchart of a method for allocating a cell identifier before an X2 interface is established according to an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method for allocating a cell identifier in a first X2 interface configuration update process according to an embodiment of the present invention
  • FIG. 10 is a schematic flowchart of a method for allocating a cell identifier in a second X2 interface setup process according to an embodiment of the present invention.
  • FIG. 11 is a schematic flowchart of a method for allocating a cell identifier in a second X2 interface configuration update process according to an embodiment of the present invention. detailed description
  • the RN device determines and sends the cell information according to the number of cells to which the cell identifier needs to be allocated, and the base station determines the number of cell identifiers to be allocated for the RN device according to the cell information, allocates the cell identifier to the RN device, and allocates the cell identifier according to the allocation.
  • the cell identifier determines and sends the allocation information, where each cell identifier uniquely identifies a cell, and the RN device determines the cell identifier corresponding to each cell according to the received allocation information from the base station. Since the base station allocates the cell identifier to the RN device, the collision of the cell identifiers allocated by the RN OAMs of different vendors is avoided, the manual participation is saved, the maintenance cost is reduced, and the allocation efficiency is improved.
  • the cell identifier of the embodiment of the present invention may be an E-UTRAN Cell Global Identifier (ECGI) or a Physical Cell Identity (PCI), and other unique identifiers. Cell information.
  • ECGI E-UTRAN Cell Global Identifier
  • PCI Physical Cell Identity
  • the solution of the embodiment of the present invention can be applied to the LTE-A system, and can also be applied to other systems including the RN device.
  • the base station in the embodiment of the present invention is a base station that can be connected to the RN device, such as a macro base station, a donor base station (DeNB), a home base station, and the like.
  • a macro base station such as a macro base station, a donor base station (DeNB), a home base station, and the like.
  • DeNB donor base station
  • the system for assigning a cell identifier includes: an RN device 10 and a base station 20.
  • the RN device 10 is configured to determine cell information according to the number of cells to which the cell identifier is allocated, and send the cell information to the base station 20 connected to the base station, and determine, according to the received allocation information from the base station 20, that the cell identifier needs to be allocated.
  • the cell identifier corresponding to each 'j, zone.
  • the base station 20 is configured to determine, according to the received cell information from the RN device 10, the number of cell identifiers that need to be allocated for the RN device 10, and allocate a cell identifier to the RN device 10 according to the determined quantity, and determine allocation information according to the allocated cell identifier. And transmitting the allocation information to the RN device 10, and each of the allocated cell identifiers uniquely identifies one cell.
  • the RN device 10 may use the number of cells that need to allocate a cell identifier as cell information. For example, the RN device 10 manages three cells by itself, and the base station 20 needs to allocate cell identifiers for the three cells, and then 3 can be used as cell information. Correspondingly, the base station 20 uses the number of received cells as the cell that needs to be allocated to the RN device 10. The number of identities.
  • the RN device 10 may also use the cell identifier specific value of each cell that needs to be allocated a cell identifier as the cell information, and the cell identifier specific value is a predetermined number of digits, which may be all 0s, all 1, and may be other numbers.
  • the cell identity specific value of the first cell is all 0, and all 0s are used as cell information; and the second cell is determined.
  • the cell identity specific value is all 0s, and all 0s are used as cell information; it is determined that the cell identity specific value of the third cell is all 1 > and all 1s are used as cell information.
  • the base station 20 needs to allocate several cell identifiers, and sets several cell identifier specific values.
  • the base station 20 uses the number of received cell identifier specific values as the cell that needs to be allocated to the RN device 10. The number of identities.
  • the base station 20 determines the number of cell identifiers that need to be allocated for the RN device 10, and assigns a cell identifier to the RN device 10 according to the number. For example, if the determined number is 3, the RN device 10 is allocated 3 cell identifiers.
  • the base station 20 needs to ensure that the allocated cell identifier can uniquely identify a cell when the cell identifier is allocated to the RN device 10. For example, the cell identifier of the cell managed by itself and the cell identifier allocated to other RNs can be viewed, and the same cannot be the same as the foregoing identifiers. .
  • the base station 20 may use each cell identifier as the allocation information. For example, if three cell identifiers are allocated, each cell identifier is used as one allocation information, that is, there are three allocation information.
  • the RN device 10 uses each allocation information as a cell identifier, and each cell identifier is used as a cell identifier corresponding to one cell.
  • the base station 20 may also use the partial bits of each cell identifier as the allocation information.
  • the RN device 10 fills in the remaining bits of the cell identifier, and according to the filled cell.
  • the identifier determines a cell identifier corresponding to each cell.
  • the cell identifier is ECGI, and two cell identifiers need to be allocated.
  • the base station 20 can send only the last 8 bits of each ECGI as an allocation information to the RN device 10.
  • the RN device 10 The first 44 bits of the ECGI of the Donor cell and the received two last 8 bits respectively form two new ECGIs, and each new ECGI is used as a cell identifier corresponding to one cell.
  • the number of transmitted bits can be saved, that is, the transmission resources are saved, and the transmission efficiency and resource utilization are improved.
  • the base station 20 may also select a part of the cell identifiers from all the allocated cell identifiers, and use each of the selected cell identifiers as the allocation information, and the remaining bits in each of the remaining cell identifiers respectively serve as one allocation information;
  • the RN device 10 knows which allocation information is a complete cell identifier and which allocation information is a partial cell identifier according to the number of bits occupied by the cell information.
  • the R device 10 may send the cell information to the base station 20 during the X2 interface establishment process, or before the X2 interface is established, or during the X2 interface configuration update process.
  • the X2 interface is located at the access network layer, the logical interface between the stations, and each base station can be connected to multiple adjacent bases. There is an X2 connection at the station.
  • the RN device 10 may send the cell information that needs to be sent in a Radio Resource Control (RRC) message or an X2 Interface Application Layer Signaling Protocol (X2-AP) message.
  • RRC Radio Resource Control
  • X2-AP X2 Interface Application Layer Signaling Protocol
  • the base station 20 can transmit the allocation information that needs to be transmitted in an RRC message or an X2-AP message.
  • the specific RN device 10 and the base station 20 use the same information as the RN device 10 to send the cell information in any scenario.
  • the specific RN device 10 and the base station 20 use the same information as the RN device 10 to send the cell information in any scenario.
  • FIG. 7 - 11 and details are not described herein.
  • the base station 20 may also assign the assigned cell identity to the OAM device connected to itself.
  • the RN device 10 may report the determined cell identifier to the OAM device connected to itself, that is, the RN OAM device.
  • the RN device 10 may also notify the base station 10 of the cell identifier g: 3 ⁇ 4.
  • the base station of the embodiment of the present invention includes: a quantity determining module 200, an allocating module 210, and a first sending module 220.
  • the quantity determining module 200 is configured to determine, according to the received cell information from the RN device, the number of cell identifiers that need to be allocated for the RN device.
  • the allocating module 210 is configured to allocate a cell identifier to the RN device according to the quantity determined by the quantity determining module 200, and each of the allocated cell identifiers uniquely identifies one cell.
  • the first sending module 220 is configured to determine allocation information according to the cell identifier allocated by the allocating module 210, and send the allocation information to the RN.
  • the first sending module 220 may use each of the allocated cell identifiers as the allocation information, or use the allocated partial bits of each cell identifier as the allocation information.
  • the first sending module 220 may send the allocation information to the RN through an RRC message or an X2-AP message.
  • the quantity determining module 200 when the cell information is the number of cells, uses the number of received cells as the number of cell identifiers that need to be allocated for the RN device;
  • the quantity determining module 200 when the cell information is a cell identification specific value, takes the number of received cell identification specific values as the number of cell identifiers that need to be allocated for the RN device.
  • the first sending module may also report the allocated cell identifier to the operation and maintenance system 0AM device connected to itself.
  • the RN device in the embodiment of the present invention includes: a second sending module 100 and an identifier determining module 110.
  • the second sending module 100 is configured to determine cell information according to the number of cells to which the cell identifier is allocated, and send the cell information to the base station.
  • the identifier determining module 110 is configured to determine, according to the received allocation information from the base station, a cell identifier corresponding to each cell that needs to allocate a cell identifier, where the allocation information is determined by the base station according to the cell identifier allocated for the RN device.
  • the second sending module 100 may use the number of cells that need to allocate the cell identifier as the cell information, or use the cell identifier specific value of each cell that needs to allocate the cell identifier as the cell information.
  • the identifier determining module 110 may use the allocation information as a cell identifier and determine a cell identifier corresponding to each cell when the allocation information is a cell identifier.
  • the allocation information is a partial bit of the cell identifier
  • the remaining bits of the cell identifier are filled, and according to The padded cell identifier determines the cell identity corresponding to each cell.
  • the identity determining module 110 may send cell information to the base station during the X2 interface setup process, or before the X2 interface is established, or during the X2 interface configuration update process.
  • the identity determining module 110 may send the cell information by using an RRC message or an X2-AP message.
  • the second sending module 100 can also report the determined cell identity to the OAM device connected to itself. Preferably, the second sending module may further notify the base station that the cell identity allocation is completed.
  • the method for allocating a cell identifier in the embodiment of the present invention includes the following steps:
  • Step 501 The base station determines, according to the received cell information from the relay RN device, the number of cell identifiers that need to be allocated for the RN device.
  • Step 502 The base station allocates a cell identifier to the RN device according to the determined quantity, and each allocated cell identifier uniquely identifies one cell.
  • Step 503 The base station determines allocation information according to the allocated cell identifier, and sends the allocation information to the RN.
  • step 501 the method further includes:
  • Step 500 The RN device determines the cell information according to the number of cells to which the cell identifier needs to be allocated, and sends the cell information to the base station.
  • Step 503 may further include:
  • Step 504 The RN device determines, according to the received allocation information from the base station, a cell identifier corresponding to each cell.
  • the RN device may use the number of cells that need to allocate a cell identifier as cell information.
  • the RN device manages three cells, and the base station needs to allocate the cell identifiers to the three cells, and then 3 can be used as the cell information.
  • the base station uses the number of cells received as the cell to be allocated for the RN device. The number of identities.
  • the R device may also use the cell identifier specific value of each cell that needs to be allocated a cell identifier as the cell information, and the cell identifier specific value is a predetermined number of digits, which may be all 0s, all 1s or other digits.
  • the RN device manages three cells by itself, and the base station needs to allocate cell identifiers for the three cells, and then determines the cell identity of the first cell.
  • the value is all 0s, and all 0s are used as cell information; determining that the cell identity specific value of the second cell is all 0s, and all 0s are used as cell information; determining that the cell identity specific value of the third cell is all ones, and All 1s are used as cell information.
  • the base station 20 needs to allocate several cell identifiers, and sets a specific value of several cell cell identifiers.
  • the base station will receive the cell identifier specific value.
  • the number is the number of cell identities that need to be allocated for the RN device.
  • the base station determines the number of cell identifiers that need to be allocated for the RN device 10, and allocates a cell identifier to the RN device according to the number. For example, if the determined number is 3, the RN device is allocated three cell identifiers.
  • the base station needs to ensure that the allocated cell identifier can uniquely identify a cell when the cell identifier is allocated to the RN device. For example, the cell identifier of the cell managed by itself and the cell identifier allocated to other RNs can be viewed, and the same cannot be the same as the foregoing.
  • the base station may use each cell identifier as the allocation information. For example, if three cell identifiers are allocated, each cell identifier is used as an allocation information, that is, there are three allocation information;
  • the RN device uses each allocation information as a cell identifier, and each cell identifier is used as a cell identifier corresponding to one cell.
  • the base station may also use the partial bits of each cell identifier as the allocation information.
  • the RN device fills in the remaining bits of the cell identifier, and The padded cell identifier determines the cell identity corresponding to each cell. For example, if the cell identifier is ECGI and the two cell identifiers need to be allocated, the base station may send only the last 8 bits of each ECGI as an allocation information to the RN device. After receiving the two allocation information, the RN device according to the Donor cell The first 44 bits of the ECGI and the two received last 8 bits form two new ECGIs, and each new ECGI is used as a cell identifier corresponding to one cell.
  • the partial bits of each cell identifier are used as the way of allocating information, which can save transmission resources and improve transmission efficiency and resource utilization.
  • the base station may further select a part of the cell identifiers from all the allocated cell identifiers, and use each selected cell identifier as the allocation information, and the remaining bits in each of the remaining cell identifiers respectively serve as one allocation information;
  • the RN device knows which allocation information is a complete cell identifier according to the number of bits occupied by the cell information, and which allocation information is a partial cell identifier.
  • the RN device may send the cell information to the base station 20 during the X2 interface setup process, or before the X2 interface is established, or during the X2 interface configuration update process.
  • the RN device may send the cell information that needs to be sent in an RRC message or an X2-AP message.
  • the base station may send the allocation information that needs to be sent in an RC message or an X2-AP message. Which kind of message is used by the specific R device and the base station respectively, and the RN device sends the cell information in what scenario. For details, refer to FIG. 7 to FIG. 11 , and details are not described herein again.
  • the base station may report the allocated cell identity to the OAM device connected to itself.
  • the R device may also assign the determined cell identifier to the 0 AM device connected to itself, that is, the RN 0 AM device.
  • the RN device may also notify the base station that the cell identity allocation is completed.
  • the method for determining a cell identity in the embodiment of the present invention includes the following steps:
  • Step 601 The RN device determines the cell information according to the number of cells to which the cell identifier is allocated, and sends the cell information to the base station.
  • Step 602 The RN device determines, according to the received allocation information from the base station, a cell identifier corresponding to each cell that needs to allocate a cell identifier, where the allocation information is determined by the base station according to the cell identifier allocated for the RN device.
  • the RN device uses the number of cells that need to allocate the cell identifier as the cell information; or the RN device uses the cell identifier specific value of each cell that needs to allocate the cell identifier as the cell information.
  • step 602 when the allocation information is a cell identifier, the RN device uses the allocation information as a cell identifier, and determines a cell identifier corresponding to each cell.
  • the RN device fills in the remaining bits of the cell identifier, and determines the cell identifier corresponding to each cell according to the filled cell identifier.
  • step 601 the RN device sends the cell information to the base station in the process of establishing the X2 interface, or before the X2 interface is established, or during the X2 interface configuration update process.
  • the RN device sends the cell information by using an RRC message or an X2-AP message.
  • Step 602 may further include:
  • the RN device reports the determined cell identity to the 0 AM device connected to itself.
  • Step 602 may further include:
  • the RN device notifies the base station that the cell identity allocation is completed.
  • step 601 and the step 602 can be the same as the steps 500 and 504 respectively, and details are not described herein again.
  • cell identity is ECGI.
  • PCI process of cell identity
  • the method for allocating a cell identifier in a first X2 interface setup process includes the following steps: Step 701: After the RN device is powered on, the X2 interface is set up with the DeNB, and the number of cells managed by the RN device is reported to the DeNB in the X2 Setup Request message.
  • Step 702 The DeNB allocates a cell ECGI for each cell of the R according to the number of cells requested by the RN, and establishes a response (X2 Setup Response) message or an X2 Setup Failure message by using an X2 interface according to the situation of the X2 interface establishment.
  • the assigned ECGI is sent to the RN device, that is, the successful sending of the X2 Setup Response is established, and the establishment fails to send the X2 Setup Failure.
  • a newly allocated cell identifier list may be added to the two X2-AP messages.
  • the ECGI allocated by the DeNB cannot be the same as the ECGI of the cell managed by the DeNB and the ECGI allocated by the DeNB to all the RN devices managed by the DeNB, that is, the uniqueness is guaranteed.
  • Step 703 The RN device uses the received ECGI as the ECGI of the cell managed by itself.
  • the RN device may initiate an eNB Configuration Update message to the DeNB to notify the DeNB to notify the DeNB that the cell identity allocation is complete.
  • the DeNB may report all ECGIs managed by the RN to the DeNB OAM after allocating the ECGI to the RN device, so as to ensure that no conflict occurs when the DeNB OAM allocates the cell ECGI to the DeNB.
  • the RN device may report the ECGI to the RN OAM after obtaining the ECGI managed by the RN, so as to ensure that the RN 0AM does not generate a conflict when the cell ECGI is allocated to the RN.
  • the method for allocating a cell identifier before establishing an X2 interface includes the following steps:
  • Step 801 After the RN device is powered on, the eNB sends an X2 interface to the DeNB to report the number of cells managed by the DeNB to the DeNB, for example, by using a Cell Identity Request message.
  • Step 802 The DeNB allocates a cell ECGI to each cell of the RN device according to the number of cells requested by the RN device, or the DeNB allocates only the last 8 bits of the ECGI to each cell of the RN device, and sends the RRC message to the RN device, for example, by using an RRC message, for example, A Cell Identity Response message, or an Un Radio Resource Control Reconfiguration (UnRRCReconfiguration) message.
  • RRC message for example, A Cell Identity Response message, or an Un Radio Resource Control Reconfiguration (UnRRCReconfiguration) message.
  • Step 803 If the RRC message received by the RN device is an ECGI, the received ECGI is used as the ECGI of the cell managed by the RN; if the RRC message received by the RN device includes the last 8 bits of the ECGI, the RN device according to Donor The first 44 bits of the ECGI of the cell and the last 8 bits received form the ECGI, as the ECGL of the cell managed by itself.
  • the method for allocating a cell identifier in a first X2 interface configuration update process includes the following steps:
  • Step 901 When the cell needs to be added, the RN device sends an eNB Configuration Update message to the DeNB, where the message carries the number of newly added cells of the R device.
  • Step 902 After receiving the eNB Configuration Update, the DeNB allocates an ECGI to the RN device according to the number of newly added cells of the RN device, and returns an eNB Configuration Update Acknowledge message including all newly allocated ECGIs to the RN.
  • a newly allocated cell identifier list may be added to the eNB configuration update confirmation message.
  • Step 903 The RN device uses the received ECGI as the ECGI of the cell managed by itself.
  • FIG. 9 The optional steps of FIG. 9 are the same as those of FIG. 7, and are not described herein again.
  • the method for allocating a cell identifier in the second X2 interface establishment process includes the following steps:
  • Step 1001 After the RN device is powered on, in the process of establishing an X2 interface with the DeNB, set all ECGIs managed by the RN device to a special value (such as all 0s or all 1s) in the X2 setup request message, and send an X2 Setup Request message.
  • a special value such as all 0s or all 1s
  • Step 1002 After receiving the X2 setup request message, the DeNB determines that the global base station identifier (Global eNB ID) in the X2 setup request is the same as the Global eNB ID of the DeNB, and determines that the message is sent by the RN device (or is determined by other means). This message comes from the RN device, such as the source IP address of the message, or the ECGI of the special value. Then, the number of cells is determined according to the number of ECGIs, the ECGI is allocated for each cell of the RN device, and all the newly allocated ones are returned to the RN device. ECGI's X2 Setup Response message or an X2 Setup Failure message containing all newly assigned ECGIs.
  • the RN device such as the source IP address of the message, or the ECGI of the special value.
  • a newly allocated cell identifier list may be added to the two X2-AP messages.
  • Step 1003 The RN device uses the received ECGI as the ECGI of the cell managed by itself.
  • FIG. 10 The optional steps of FIG. 10 are the same as those of FIG. 7, and are not described herein again.
  • FIG. 10 it can also be completed by using an RRC process.
  • RRC process For details, refer to the manner of FIG. 8 and details are not described herein again.
  • the ECGI special value is not used as an ECGI value to be allocated to the DeNB and the cell managed by the RN device.
  • the method for allocating a cell identifier in a second X2 interface configuration update process includes the following steps:
  • Step 1101 When the cell needs to be added, the RN device sends an eNB Configuration Update message to the DeNB. In the message, the N device sets all the newly added ECGIs to a special value, such as all 0s or all ones.
  • Step 1102 After receiving the eNB Configuration Update, the DeNB adds the number of cells added by the RN to the RN. With ECGI, return the eNB configuration update confirmation (eNB configuration) containing all newly allocated ECGIs to the RN device.
  • eNB configuration update confirmation eNB configuration
  • This method requires adding a newly assigned cell identity list to the eNB configuration update acknowledgement message.
  • Step 1103 The RN device uses the received ECGI as the ECGI of the cell managed by itself;
  • FIG. 11 The optional steps of FIG. 11 are the same as those of FIG. 7, and are not described herein again.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can take the form of a computer program product embodied on one or more computer-usable storage devices (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • computer-usable storage devices including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the base station determines, according to the received cell information from the RN device, the number of cell identifiers that need to be allocated for the RN device, and allocates a cell identifier to the RN device according to the determined quantity, where each The cell identifier uniquely identifies a cell, and determines allocation information according to the allocated cell identifier, and sends the information to the RN. Send distribution information.
  • the base station allocates a cell identifier to the RN device, the collision of the cell identifiers allocated by the RN OAMs of different vendors is avoided, the manual participation is saved, the maintenance cost is reduced, and the allocation efficiency is improved.
  • the cell identity allocation can be completed, and the burden of the OAM is also alleviated.

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Abstract

本申请涉及无线通信技术领域,特别涉及一种分配小区标识的方法、系统及设备,用以解决现有技术中存在的为RN设备分配小区标识有可能出现小区标识冲突的情况发生,从而增加系统维护成本的问题。该方法包括:基站根据收到的来自中继节点RN设备的小区信息确定需要为RN设备分配的小区标识的数量,根据确定的数量为所述RN设备分配小区标识,分配的每个小区标识唯一标识一个小区,根据分配的小区标识确定分配信息,并向所述RN发送所述分配信息。由于由基站为RN设备分配小区标识,从而避免由于不同厂商的RN的操作与维护系统OAM分配的小区标识产生冲突的情况发生,提高了分配效率,节省了人工参与,降低了维护成本。

Description

一种分配和确定小区标识的方法、 系统及设备 本申请要求在 2011年 08月 12日提交中国专利局、 申请号为 201010252468.1、 发明名称 为 "一种分配和确定小区标识的方法、 系统及设备"的中囯专利申请的优先权, 其全部内容 通过引用结合在本申请中。 技术领域
本发明涉及无线通信技术领域, 特别涉及一种分配和确定小区标识的方法、 系统及设 备。 背景技术
长期演进升级(Long Term Evolution- Advanced , LTE-A ) 系统引入中继 (Relay )节点 后, 定义了以下节点、 接口和链路, 如图 1所示:
节点包括:
Donor-eNB: 与 RN设备有无线连接的基站( eNB ), 筒写为施主基站( DeNB ); Relay-Node: 存在于 DeNB 与用户终端 (UE )之间的实体, 简写为中继节点 (RN ) 设备;
UE: 用户终端。
接口包括:
Un接口: RN设备和 DeNB之间的接口;
Uu接口: UE和服务基站之间的接口。
无线链路包括:
Backhaul link: 回程链路, 基站与核心网之间的链路, 包含 Un接口对应的链路; Access link: 接入链路, 与 Uu接口对应的链路。
引入 R 设备后的下行传输: 需要发送给 RN设备下 UE的数据需要由 DeNB经下行 回程链路发送到 RN设备, 再由 RN设备经下行接入链路发送到 UE。
引入 RN设备后的上行传输: RN设备下 UE的上行数据先由 UE经上行接入链路发送 到 RN设备, 再由 RN设备经回程链路发送到 DeNB。
目前, 通过操作与维护系统(Operation and Maintenance , OAM )设备来配置 eNB下 的小区标识。 引入 RN之后, RN有自己的 OAM, DeNB也有自己的 OAM, 两者的 OAM 可能来自不同的厂商。 如果采用现有机制利用 RN的 OAM来为 RN设备分配小区标识的 话, 同一 DeNB下可能部署了不同厂商的 RN。 这样, 不同厂商的 RN OAM分配的小区标 识可能会产生冲突。
综上所述, 目前为 RN设备分配小区标识有可能出现小区标识冲突的情况发生, 如果 通过人工去维护每个 RN OAM的话, 人工成本较大, 且后续维护复杂, 效率低下。 发明内容
本发明实施例提供一种分配和确定小区标识的方法、 系统及设备, 用以解决现有技术 中存在的为 RN设备分配小区标识有可能出现小区标识冲突的情况发生, 从而增加分配难 度以及维护成本的问题。
本发明实施例提供的一种分配小区标识的方法, 该方法包括:
基站根据收到的来自中继 RN设备的小区信息确定需要为所述 RN设备分配的小区标 识的数量;
所述基站根据确定的数量为所述 R 设备分配小区标识, 分配的每个小区标识唯一标 识一个小区;
所述基站根据分配的小区标识确定分配信息, 并向所述 N发送所述分配信息。 本发明实施例提供的一种确定小区标识的方法, 该方法包括:
中继 RN设备根据需要分配小区标识的小区的数量, 确定小区信息, 并向基站发送所 述小区信息;
所述 RN设备根据收到的来自基站的分配信息, 确定需要分配小区标识的每个小区对 应的小区标识;
其中, 所述分配信息是所述基站根据为所述 RN设备分配的小区标识确定的。
本发明实施例提供的一种分配小区标识的系统, 该系统包括:
中继节点 RN设备, 用于根据需要分配小区标识的小区的数量, 确定小区信息, 并发 送所述小区信息, 以及根据收到的来自基站的分配信息, 确定需要分配小区标识的每个小 区对应的小区标识;
基站,用于根据收到的所述小区信息确定需要为所述 RN设备分配的小区标识的数量, 以及根据确定的数量为所述 R 设备分配小区标识, 根据分配的小区标识确定分配信息, 并发送所述分配信息, 分配的每个小区标识唯一标识一个小区。
本发明实施例提供的一种基站, 该基站包括:
数量确定模块,用于根据收到的来自中继节点 RN设备的小区信息确定需要为所述 RN 设备分配的小区标识的数量;
分配模块, 用于根据确定的数量为所述 RN设备分配小区标识, 分配的每个小区标识 唯一标识一个小区;
第一发送模块, 用于根据分配的小区标识确定分配信息, 并向所述 RN发送所述分配 信息。
本发明实施例提供的一种中继节点 R 设备, 该 RN设备包括:
第二发送模块, 用于根据需要分配小区标识的小区的数量, 确定小区信息, 并向基站 发送所述小区信息;
标识确定模块, 用于根据收到的来自基站的分配信息, 确定需要分配小区标识的每个 小区对应的小区标识;
其中 , 所述分配信息是所述基站根据为所述 RN设备分配的小区标识确定的。
本发明实施例中, RN设备根据需要分配小区标识的小区的数量, 确定并发送小区信 息, 基站根据小区信息确定需要为 RN设备分配的小区标识的数量, 为 RN设备分配小区 标识, 以及根据分配的小区标识确定并发送分配信息, 其中每个小区标识唯一标识一个小 区, RN设备根据收到的来自基站的分配信息, 确定每个小区对应的小区标识。
由于由基站为 RN设备分配小区标识,从而避免由于不同厂商的 RN OAM分配的小区 标识产生冲突的情况发生, 节省了人工参与, P条低了維护成本, 提高了分配效率; 进一步的, 由子不需要 OAM的参与, 即可完成小区标识分配, 还减轻了 OAM的负 担。 附图说明
图 1为背景技术中 LTE-A系统引入 RN设备后的网络结构示意图;
图 2为本发明实施例提供的分配小区标识的系统结构示意图;
图 3为本发明实施例提供的基站的结构示意图;
图 4为本发明实施例提供的 RN设备的结构示意图;
图 5为本发明实施例提供的分配小区标识的方法流程示意图;
图 6为本发明实施例提供的确定小区标识的方法流程示意图;
图 7为本发明实施例提供的第一种 X2接口建立过程中分配小区标识的方法流程示意 图;
图 8为本发明实施例提供的 X2接口建立之前分配小区标识的方法流程示意图; 图 9为本发明实施例提供的第一种 X2接口配置更新过程中分配小区标识的方法流程 示意图;
图 10为本发明实施例提供的第二种 X2接口建立过程中分配小区标识的方法流程示意 图;
图 11为本发明实施例提供的第二种 X2接口配置更新过程中分配小区标识的方法流程 示意图。 具体实施方式
本发明实施例中, RN设备根据需要分配小区标识的小区的数量, 确定并发送小区信 息, 基站根据小区信息确定需要为 RN设备分配的小区标识的数量, 为 RN设备分配小区 标识, 以及根据分配的小区标识确定并发送分配信息, 其中每个小区标识唯一标识一个小 区, RN设备根据收到的来自基站的分配信息, 确定每个小区对应的小区标识。 由于由基 站为 RN设备分配小区标识,从而避免由于不同厂商的 RN OAM分配的小区标识产生冲突 的情况发生, 节省了人工参与, 降低了维护成本, 提高了分配效率。
其中, 本发明实施例的小区标识可以是演进的通用陆地无线接入网小区全球标识 ( E-UTRAN Cell Global Identifier, ECGI )或物理层小区标识( Physical Cell Identity, PCI ), 以及其他可以唯一标识小区的信息。
本发明实施例的方案可以应用于 LTE-A系统中 ,也可以应用于其他含有 RN设备的系 统中。
本发明实施例的基站是能够与 RN设备连接的基站, 比如宏基站、施主基站(DeNB )、 家庭基站等。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 2所示, 本发明实施例提供的分配小区标识的系统包括: RN设备 10和基站 20。
RN设备 10, 用于根据需要分配小区标识的小区的数量, 确定小区信息, 并向与自身 连接的基站 20发送小区信息, 以及根据收到的来自基站 20的分配信息, 确定需要分配小 区标识的每个 'j、区对应的小区标识。
基站 20, 用于根据收到的来自 RN设备 10的小区信息确定需要为 RN设备 10分配的 小区标识的数量, 以及根据确定的数量为 RN设备 10分配小区标识,根据分配的小区标识 确定分配信息, 并向 RN设备 10发送分配信息, 分配的每个小区标识唯一标识一个小区。
其中, RN设备 10可以将需要分配小区标识的小区的数量作为小区信息。 比如 RN设 备 10自身管理三个小区, 需要基站 20为这三个小区分配小区标识, 则可以将 3作为小区 信息; 相应的,基站 20将收到的小区数量作为需要为 RN设备 10分配的小区标识的数量。
RN设备 10还可以将需要分配小区标识的每个小区的小区标识特定值作为小区信息, 小区标识特定值是预先规定的一串数字, 可以是全 0, 全 1、 当然也可以是其他数字。 比 如 R 设备 10 自身管理三个小区, 需要基站 20为这三个小区分配小区标识, 则确定第一 个小区的小区标识特定值是全 0, 并将全 0作为小区信息; 确定第二个小区的小区标识特 定值是全 0 , 并将全 0作为小区信息; 确定第三个小区的小区标识特定值是全 1 > 并将全 1 作为小区信息。 也就是说, 这种方式需要基站 20 分配几个小区标识, 就设定几个小区标 识特定值; 相应的, 基站 20将收到的小区标识特定值的数量作为需要为 RN设备 10分配 的小区标识的数量。
其中, 基站 20在确定了需要为 RN设备 10分配的小区标识的数量, 根据数量为 RN 设备 10分配小区标识, 比如确定数量为 3, 则为 RN设备 10分配 3个小区标识。
基站 20在为 RN设备 10分配小区标识时需要保证分配的小区标识能够唯一标识一个 小区, 比如可以查看自身管理的小区的小区标识以及为其他 RN分配的小区标识, 要保证 不能与上述这些标识相同。
在实施中, 基站 20在分配了小区标识后, 可以将每个小区标识分别作为分配信息, 比如分配了 3个小区标识, 则将每一个小区标识作为一个分配信息, 即有 3个分配信息; 相应的, RN设备 10将每个分配信息分别作为一个小区标识, 将每个小区标识分别作为一 个小区对应的小区标识。
基站 20在分配了小区标识后, 还可以将每个小区标识的部分比特分别作为分配信息; 相应的, RN设备 10在收到分配信息后, 填充小区标识的其余比特, 并根据填充后的小区 标识, 确定每个小区对应的小区标识。 比如小区标识是 ECGI, 需要分配 2个小区标识, 则基站 20可以只将每个 ECGI的后 8比特分别作为一个分配信息发送给 RN设备 10, RN 设备 10在收到两个分配信息后 , 根据 Donor cell (施主小区)的 ECGI的前 44比特分别与 收到的两个后 8比特组成两个新的 ECGI,并将每个新的 ECGI作为一个小区对应的小区标 识。
将每个小区标识的部分比特分别作为分配信息的方式可以节省传输的比特数, 即节省 传输资源, 提高传输效率和资源利用率。
在实施中, 基站 20还可以从分配的所有小区标识中选定一部分小区标识, 将选定的 每个小区标识分别作为分配信息, 剩余每个小区标识中的部分比特分别作为一个分配信 息; 相应的, RN设备 10根据小区信息占用的比特数就知道哪些分配信息是完整的小区标 识, 哪些分配信息是部分小区标识。
其中, R 设备 10可以在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口配置 更新过程中向基站 20发送小区信息。
X2接口位于接入网络层, 站之间的逻辑接口, 每个基站可以与多个相邻的基 站存在 X2连接。
具体的, RN设备 10可以将需要发送的小区信息置于无线资源控制 (Radio Resource Control, RRC )消息或 X2接口应用层信令协议 ( X2 Application Protocol, X2-AP )消息中 发送。
基站 20可以将需要发送的分配信息置于 RRC消息或 X2-AP消息中发送。
具体 RN设备 10和基站 20分别采用哪种消息跟 RN设备 10在什么场景下发送小区信 息有关, 具体内容可以参见图 7 - 11 , 在此不再赘述。
基站 20在为 RN设备 10分配小区标识后, 还可以将分配的小区标识上 4艮给与自身连 接的 OAM设备。
RN设备 10在确定了小区对应的小区标识后, 还可以将确定的小区标识上报给与自身 连接的 OAM设备, 即 RN OAM设备。
较佳的, RN设备 10在确定了小区对应的小区标识后, 还可以通知基站 10小区标识 g己: ¾ 。
如图 3所示, 本发明实施例的基站包括: 数量确定模块 200、 分配模块 210和第一发 送模块 220。
数量确定模块 200 , 用于根据收到的来自 RN设备的小区信息确定需要为 RN设备分 配的小区标识的数量。
分配模块 210, 用于根据数量确定模块 200确定的数量为 RN设备分配小区标识, 分 配的每个小区标识唯一标识一个小区。
第一发送模块 220 , 用于根据分配模块 210分配的小区标识确定分配信息, 并向 RN 发送分配信息。
其中, 第一发送模块 220可以将分配的每个小区标识分别作为分配信息, 或将分配的 每个小区标识的部分比特分别作为分配信息。
第一发送模块 220可以通过 RRC消息或 X2-AP消息向 RN发送分配信息。
其中,数量确定模块 200在小区信息是小区数量时,将收到的小区数量作为需要为 RN 设备分配的小区标识的数量;
数量确定模块 200在小区信息是小区标识特定值时, 将收到的小区标识特定值的数量 作为需要为 RN设备分配的小区标识的数量。
其中, 第一发送模块还可以将分配的小区标识上报给与自身连接的操作与维护系统 0AM设备。
如图 4所示, 本发明实施例的 RN设备包括: 第二发送模块 100和标识确定模块 110。 第二发送模块 100, 用于根据需要分配小区标识的小区的数量, 确定小区信息, 并向 基站发送小区信息。
标识确定模块 110, 用于根据收到的来自基站的分配信息, 确定需要分配小区标识的 每个小区对应的小区标识, 其中分配信息是基站根据为 RN设备分配的小区标识确定的。
其中, 第二发送模块 100可以将需要分配小区标识的小区的数量作为小区信息, 或将 需要分配小区标识的每个小区的小区标识特定值作为小区信息。
标识确定模块 110可以在分配信息是小区标识时, 将分配信息作为小区标识, 并确定 每个小区对应的小区标识; 在分配信息是小区标识的部分比特时, 填充小区标识的其余比 特, 并根据填充后的小区标识, 确定每个小区对应的小区标识。
标识确定模块 110可以在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口配置 更新过程中向基站发送小区信息。
进一步的 , 标识确定模块 110可以通过 RRC消息或 X2-AP消息发送小区信息。
较佳的,第二发送模块 100还可以将确定的小区标识上报给与自身连接的 OAM设备。 较佳的, 第二发送模块还可以通知基站小区标识分配完成。
如图 5所示, 本发明实施例分配小区标识的方法包括下列步骤:
步骤 501、 基站根据收到的来自中继 RN设备的小区信息确定需要为 RN设备分配的 小区标识的数量。
步骤 502、 基站根据确定的数量为 RN设备分配小区标识, 分配的每个小区标识唯一 标识一个小区。
步骤 503、 基站根据分配的小区标识确定分配信息, 并向 RN发送分配信息。
其中, 步骤 501之前还可以进一步包括:
步骤 500、 RN设备根据需要分配小区标识的小区的数量, 确定小区信息, 并向基站发 送小区信息。
步骤 503之后还可以进一步包括:
步骤 504、 RN设备根据收到的来自基站的分配信息, 确定每个小区对应的小区标识。 步骤 500中, RN设备可以将需要分配小区标识的小区的数量作为小区信息。 比如 RN 设备自身管理三个小区,需要基站为这三个小区分配小区标识,则可以将 3作为小区信息; 相应的, 步骤 501中,基站将收到的小区数量作为需要为 RN设备分配的小区标识的数量。
R 设备还可以将需要分配小区标识的每个小区的小区标识特定值作为小区信息, 小 区标识特定值是预先规定的一串数字, 可以是全 0, 全 1或其他数字。 比如 RN设备自身 管理三个小区, 需要基站为这三个小区分配小区标识, 则确定第一个小区的小区标识特定 值是全 0 , 并将全 0作为小区信息; 确定第二个小区的小区标识特定值是全 0, 并将全 0 作为小区信息; 确定第三个小区的小区标识特定值是全 1 , 并将全 1作为小区信息.也就是 说, 这种方式需要基站 20分配几个小区标识, 就设定几个小区小区标识特定值; 相应的, 步骤 501中, 基站将收到的小区标识特定值的数量作为需要为 RN设备分配的小区标识的 数量。
步骤 502中, 基站在确定了需要为 RN设备 10分配的小区标识的数量, 根据数量为 RN设备分配小区标识, 比如确定数量为 3 , 则为 RN设备分配 3个小区标识。
基站在为 RN设备分配小区标识时需要保证分配的小区标识能够唯一标识一个小区, 比如可以查看自身管理的小区的小区标识以及为其他 RN分配的小区标识, 要保证不能与 上述这些标识相同。
步骤 503中, 基站在分配了小区标识后, 可以将每个小区标识分别作为分配信息, 比 如分配了 3个小区标识, 则将每一个小区标识作为一个分配信息, 即有 3个分配信息; 相 应的, 步骤 504中, RN设备将每个分配信息分别作为一个小区标识, 将每个小区标识分 别作为一个小区对应的小区标识。
基站在分配了小区标识后, 还可以将每个小区标识的部分比特分别作为分配信息; 相 应的, 步骤 504中, RN设备在收到分配信息后, 填充小区标识的其余比特, 并 4艮据填充 后的小区标识, 确定每个小区对应的小区标识。 比如小区标识是 ECGI, 需要分配 2个小 区标识, 则基站可以只将每个 ECGI的后 8比特分别作为一个分配信息发送给 RN设备, RN设备在收到两个分配信息后 , 根据 Donor cell的 ECGI的前 44比特分别与收到的两个 后 8比特组成两个新的 ECGI, 并将每个新的 ECGI作为一个小区对应的小区标识。
将每个小区标识的部分比特分别作为分配信息的方式可以节省传输资源, 提高传输效 率和资源利用率。
步骤 503中, 基站还可以从分配的所有小区标识中选定一部分小区标识, 将选定的每 个小区标识分别作为分配信息, 剩余每个小区标识中的部分比特分别作为一个分配信息; 相应的, 步骤 504中, RN设备根据小区信息占用的比特数就知道哪些分配信息是完整的 小区标识, 哪些分配信息是部分小区标识。
步骤 500中, RN设备可以在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口 配置更新过程中向基站 20发送小区信息。
具体的, RN设备可以将需要发送的小区信息置于 RRC消息或 X2-AP消息中发送。 步骤 503中, 基站可以将需要发送的分配信息置于 R C消息或 X2-AP消息中发送。 具体 R 设备和基站分别釆用哪种消息跟 RN设备在什么场景下发送小区信息有关, 具体内容可以参见图 7〜图 11, 在此不再赘述。
基站在为 RN设备分配小区标识后, 还可以将分配的小区标识上报给与自身连接的 OAM设备。
R 设备在确定了小区对应的小区标识后, 还可以将确定的小区标识上"¾给与自身连 接的 0 AM设备 , 即 RN 0 AM设备。
较佳的, 步骤 504中, RN设备在确定了小区对应的小区标识后, 还可以通知基站小 区标识分配完成。
如图 6所示, 本发明实施例确定小区标识的方法包括下列步骤:
步骤 601、 RN设备根据需要分配小区标识的小区的数量, 确定小区信息, 并向基站发 送小区信息。
步骤 602、 RN设备根据收到的来自基站的分配信息,确定需要分配小区标识的每个小 区对应的小区标识, 其中分配信息是基站根据为 RN设备分配的小区标识确定的。
步骤 601 中, RN设备将需要分配小区标识的小区的数量作为小区信息; 或 RN设备 将需要分配小区标识的每个小区的小区标识特定值作为小区信息。
步骤 602中, 在分配信息是小区标识时, RN设备将分配信息作为小区标识, 并确定 每个小区对应的小区标识;
在分配信息是小区标识的部分比特时, RN设备填充小区标识的其余比特, 并根据填 充后的小区标识, 确定每个小区对应的小区标识。
步骤 601中, RN设备在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口配置 更新过程中向基站发送小区信息。
进一步的, RN设备通过 RRC消息或 X2-AP消息发送小区信息。
步骤 602之后还可以进一步包括:
RN设备将确定的小区标识上报给与自身连接的 0 AM设备。
步骤 602之后还可以进一步包括:
RN设备通知基站小区标识分配完成。
其中, 步骤 601和步骤 602的具体内容可以分别参见步骤 500和步骤 504的相同, 在 此不再赘述。
下面以小区标识是 ECGI为例进行详细说明, 小区标识是 PCI的过程与 ECGI的过程 类似, 不再赘述。
如图 7所示, 本发明实施例提供的第一种 X2接口建立过程中分配小区标识的方法包 括下列步骤: 步骤 701、 RN设备开机后,与 DeNB建立 X2接口的过程中,在 X2建立请求( X2 Setup Request ) 消息中向 DeNB上报 RN设备管理的小区数量。
步骤 702、 DeNB根据 RN请求的小区数量, 为 R 的每个小区分配小区 ECGI, 并根 据 X2接口建立的情况, 通过 X2建立响应 ( X2 Setup Response )消息或 X2建立失败( X2 Setup Failure )消息,将分配的 ECGI发送给 RN设备, 即建立成功发送 X2 Setup Response, 建立失败发送 X2 Setup Failure。
具体的, 可以在这两条 X2-AP消息中增加一个新分配的小区标识列表。
其中, DeNB分配的 ECGI不能和 DeNB管理的小区的 ECGI以及 DeNB已经为 DeNB 管理的所有 RN设备分配的 ECGI相同, 即保证唯一性。
步骤 703、 RN设备将收到的 ECGI作为自己管理的小区的 ECGI。
可选的,步骤 703之后, RN设备可以向 DeNB发起 e B配置更新( eNB Configuration Update ) 消息用于向 DeNB进行确认, 通知 DeNB小区标识分配完成。
可选的, DeNB可以在为 RN设备分配 ECGI之后, 将 RN管理的所有 ECGI上报给 DeNB OAM, 从而保证以后 DeNB OAM为 DeNB分配小区 ECGI时不会产生冲突。
可选的, RN设备可以在获得了自己管理的 ECGI之后,将这些 ECGI上报给 RN OAM, 从而保证以后 RN 0AM为 RN分配小区 ECGI时不会产生冲突。
如图 8所示, 本发明实施例提供的 X2接口建立之前分配小区标识的方法包括下列步 骤:
步骤 801、 RN设备开机后, 在与 DeNB建立 X2接口之前, 通过 RRC消息向 DeNB 上报自己管理的小区数量, 比如通过小区标识请求(Cell Identity Request ) 消息。
步骤 802、DeNB根据 RN设备请求的小区数量,为 RN设备的每个小区分配小区 ECGI 或是 DeNB只为 RN设备的每个小区分配 ECGI的后 8比特, 并通过 RRC消息发送给 RN 设备, 比如通过小区标识响应 ( Cell Identity Response ) 消息, 或 Un无线资源控制重配置 ( UnRRCReconfiguration ) 消息。
步骤 803、 如果 RN设备收到的 RRC消息中包含的是 ECGI, 将收到的 ECGI作为自 己管理的小区的 ECGI; 如果 RN设备收到的 RRC消息中包含 ECGI的后 8比特, RN设 备 据 Donor cell的 ECGI前 44比特与收到的后 8比特组成 ECGI, 作为自己管理的小区 的 ECGL
图 S的可选步骤与图 7的相同, 在此不再赘述。
由于图 8采用空口传输, 如果传输 ECGI的后 8比特能够节省空口资源, 相比其他传 输 ECGI全部比特的实施例, 效果更加明显。 如图 9所示, 本发明实施例提供的第一种 X2接口配置更新过程中分配小区标识的方 法包括下列步骤:
步骤 901、 当需要增加小区的时候, RN设备向 DeNB 发送 eNB 配置更新 ( eNB Configuration Update ) 消息, 在该消息中携带 R 设备新增小区的数量。
步骤 902、 DeNB收到 eNB Configuration Update后,根据 RN设备新增小区数量为 RN 设备分配 ECGI , 向 RN 返回包含新分配的所有 ECGI 的 eNB 配置更新确认 ( eNB Configuration Update Acknowledge ) 消息。
具体的, 可以在 eNB配置更新确认消息中增加一个新分配的小区标识列表。
步骤 903、 RN设备将收到的 ECGI作为自己管理的小区的 ECGI。
图 9的可选步骤与图 7的相同, 在此不再赘述。
如图 10所示,本发明实施例提供的第二种 X2接口建立过程中分配小区标识的方法包 括下列步骤:
步骤 1001、 RN设备开机后, 与 DeNB建立 X2接口的过程中, 在 X2建立请求消息中 将 RN设备管理的所有 ECGI设置为特殊值(比如全 0或全 1 ), 并发送 X2 Setup Request 消息。
步骤 1002、 DeNB收到 X2建立请求消息后,根据 X2建立请求中的全球基站标识( Global eNB ID )和 DeNB的 Global eNB ID相同判断出这是 RN设备发来的消息 (或是通过其他 方式确定出这条消息来自 RN设备, 比如消息来源 IP地址, 或特殊值的 ECGI ), 然后根据 ECGI的数量确定小区数量, 为 RN设备的每个小区分配 ECGI , 并向 RN设备返回包含新 分配的所有 ECGI的 X2 Setup Response消息或包含新分配的所有 ECGI的 X2 Setup Failure 消息。
具体的, 可以在这两条 X2-AP消息中增加一个新分配的小区标识列表。
步骤 1003、 RN设备将收到的 ECGI作为自己管理的小区的 ECGI。
图 10的可选步骤与图 7的相同, 在此不再赘述。
图 10中,也可以通过 RRC过程来完成,具体方式可以参见图 8的方式在此不再赘述。
ECGI特殊值不作为 ECGI值分配给 DeNB和 RN设备管理的小区使用。
如图 11所示, 本发明实施例提供的第二种 X2接口配置更新过程中分配小区标识的方 法包括下列步骤:
步骤 1101、 当需要增加小区的时候, RN设备向 DeNB发送 eNB Configuration Update 消息, 在该消息中, N设备将自己新增的所有 ECGI设置为特殊值, 比如全 0或全 1。
步骤 1102、 DeNB收到 eNB Configuration Update后 , 根据 RN新增小区数量为 RN分 配 ECGI,向 RN设备返回包含新分配的所有 ECGI 的 eNB配置更新确认( eNB Configuration
Update Acknowledge ) 消息。
这种方法需要在 eNB配置更新确认消息中增加一个新分配的小区标识列表。
步骤 1103、 RN设备将收到的 ECGI作为自己管理的小区的 ECGI;
图 11的可选步驟与图 7的相同, 在此不再赘述。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产 品。 因此, 本发明可采用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实 施例的形式。 而且, 本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介廣 (包括但不限于磁盘存储器、 CD-ROM, 光学存储器等)上实施的计算机程 序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
从上述实施例中可以看出: 本发明实施例基站根据收到的来自 RN设备的小区信息确 定需要为 RN设备分配的小区标识的数量, 根据确定的数量为 RN设备分配小区标识, 其 中每个小区标识唯一标识一个小区, 以及根据分配的小区标识确定分配信息, 并向 RN发 送分配信息。
由于由基站为 RN设备分配小区标识,从而避免由于不同厂商的 RN OAM分配的小区 标识产生冲突的情况发生, 节省了人工参与, 降低了维护成本, 提高了分配效率;
进一步的, 由于不需要 OAM的参与, 即可完成小区标识分配, 还减轻了 OAM的负 担。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种分配小区标识的方法, 其特征在于, 该方法包括:
基站根据收到的来自中继节点 RN设备的小区信息确定需要为所述 RN设备分配的小 区标识的数量;
所述基站根据确定的数量为所述 RN设备分配小区标识, 分配的每个小区标识唯一标 识一个小区;
所述基站根据分配的小区标识确定分配信息, 并向所述 RN发送所述分配信息。
2、 如权利要求 1 所述的方法, 其特征在于, 所述基站根据分配的小区标识确定分配 信息包括:
所述基站将分配的每个小区标识分别作为分配信息; 或
所述基站将分配的每个小区标识的部分比特分别作为分配信息。
3、如权利要求 1所述的方法, 其特征在于, 所述基站向所述 RN发送所述分配信息包 括:
所述基站通过无线资源控制 RRC消息或 X2接口应用层信令协议 X2-AP消息向所述 RN发送所述分配信息。
4、 如权利要求 1 所述的方法, 其特征在于, 所述小区信息是小区数量时, 所述基站 确定需要为所述 RN设备分配的小区标识的数量包括: 所述基站将收到的小区数量作为需 要为所述 RN设备分配的小区标识的数量; 或者,
所述小区信息是小区标识特定值时, 所述基站确定需要为所述 RN设备分配的小区标 识的数量包括: 所述基站将收到的小区标识特定值的数量作为需要为所述 RN设备分配的 小区标识的数量。
5、 如权利要求 1 ~ 4任一所述的方法, 其特征在于, 所述基站为所述 RN设备分配小 区标识之后还包括:
所述基站将分配的小区标识上报给与自身连接的操作与维护系统 OAM设备。
6、 如权利要求 1 - 4任一所述的方法, 其特征在于, 所述小区标识是演进的通用陆地 无线接入网小区全球标识 ECGI或小区物理标识 PCI。
7、 一种确定小区标识的方法, 其特征在于, 该方法包括:
中继 RN设备根据需要分配小区标识的小区的数量, 确定小区信息, 并向基站发送所 述小区信息;
所述 RN设备根据收到的来自基站的分配信息, 确定需要分配小区标识的每个小区对 应的小区标识;
其中, 所述分配信息是所述基站根据为所述 RN设备分配的小区标识确定的。
8、如权利要求 7所述的方法, 其特征在于, 所述 RN设备根据需要分配小区标识的小 区的数量, 确定小区信息包括:
所述 RN设备将需要分配小区标识的小区的数量作为小区信息; 或
所述 RN设备将需要分配小区标识的每个小区的小区标识特定值作为小区信息。
9、 如权利要求 7所述的方法, 其特征在于, 所述分配信息是小区标识时, 所述 RN设 备确定需要分配小区标识的每个小区对应的小区标识包括: 所述 RN设备将所述分配信息 作为小区标识, 并确定每个小区对应的小区标识; 或者,
所述分配信息是小区标识的部分比特时, 所述 RN设备确定需要分配小区标识的每个 小区对应的小区标识包括: 所述 RN设备填充小区标识的其余比特, 并根据填充后的小区 标识, 确定每个小区对应的小区标识。
10、 如权利要求 7所述的方法, 其特征在于, 所述 RN设备向基站发送所述小区信息 包括:
所述 RN设备在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口配置更新过程 中向基站发送所述小区信息。
11、 如权利要求 7所述的方法, 其特征在于, 所述 RN设备向基站发送所述小区信息 包括:
所述 RN设备通过 RC消息或 X2-AP消息发送小区信息。
12、 如权利要求 7 ~ 11任一所述的方法, 其特征在于, 所述 RN设备确定需要分配小 区标识的每个小区对应的小区标识之后还包括:
所述 RN设备将确定的小区标识上报给与自身连接的 OAM设备。
13、 如权利要求 7 - 11任一所述的方法, 其特征在于, 所述 RN设备确定需要分配小 区标识的每个小区对应的小区标识之后还包括:
所述 RN设备通知基站小区标识分配完成。
14、 一种分配小区标识的系统, 其特征在于, 该系统包括:
中继节点 RN设备, 用于根据需要分配小区标识的小区的数量, 确定小区信息, 并发 送所述小区信息, 以及根据收到的来自基站的分配信息, 确定需要分配小区标识的每个小 区对应的小区标识;
基站,用于根据收到的所述小区信息确定需要为所述 RN设备分配的小区标识的数量, 以及根据确定的数量为所述 R 设备分配小区标识, 根据分配的小区标识确定分配信息, 并发送所述分配信息, 分配的每个小区标识唯一标识一个小区。
15、 如权利要求 14所述的系统, 其特征在于, 所述 RN设备具体用于:
通过 R C消息或 X2-AP消息发送小区信息;
所述基站具体用于:
通过 RRC消息或 X2-AP消息发送所述分配信息。
16、 如权利要求 14所述的系统, 其特征在于, 所述基站具体用于:
将分配的每个小区标识分别作为分配信息;
所述 RN设备具体用于:
将所述分配信息作为小区标识, 并确定每个小区对应的小区标识。
17、 如权利要求 14所述的系统, 其特征在于, 所述基站具体用于:
将分配的每个小区标识的部分比特分别作为分配信息;
所述 RN设备具体用于:
填充小区标识的其余比特,并根据填充后的小区标识,确定每个小区对应的小区标识。
18、 如权利要求 14所述的系统, 其特征在于, 所述 RN设备具体用于:
将需要分配小区标识的小区的数量作为小区信息, 或将需要分配小区标识的每个小区 的小区标识特定值作为小区信息;
所述基站具体用于:
在所述小区信息是小区数量时, 将收到的小区数量作为需要为所述 RN设备分配的小 区标识的数量;
在所述小区信息是小区标识特定值时, 将收到的小区标识特定值的数量作为需要为所 述 RN设备分配的小区标识的数量。
19、 如权利要求 14所述的系统, 其特征在于 , 所述 R 设备具体用于:
在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口配置更新过程中向基站发送 所述小区信息。
20、 如权利要求 14 ~ 19任一所述的系统, 其特征在于, 所述基站还用于: 将分配的小区标识上 4艮给与自身连接的操作与维护系统 OAM设备;
所述 RN设备还用于:
将确定的小区标识上报给与自身连接的 OAM设备。
21、 一种基站, 其特征在于, 该基站包括:
数量确定模块,用于根据收到的来自中继节点 RN设备的小区信息确定需要为所述 RN 设备分配的小区标识的数量; 分配模块, 用于根据确定的数量为所述 RN设备分配小区标识, 分配的每个小区标识 唯一标识一个小区;
第一发送模块, 用于根据分配的小区标识确定分配信息, 并向所述 RN发送所述分配 信息。
22、 如权利要求 21所述的基站, 其特征在于, 所述第一发送模块具体用于: 将分配的每个小区标识分别作为分配信息, 或将分配的每个小区标识的部分比特分别 作为分配信息。
23、 如权利要求 21所述的基站, 其特征在于, 所述第一发送模块具体用于: 通过 RRC消息或 X2-AP消息向所述 RN发送所述分配信息。
24、 如权利要求 21所述的基站, 其特征在于, 所述数量确定模块用于:
在所述小区信息是小区数量时, 将收到的小区数量作为需要为所述 RN设备分配的小 区标识的数量; 或者,
在所述小区信息是小区标识特定值时, 将收到的小区标识特定值的数量作为需要为所 述 RN设备分配的小区标识的数量。
25、 如权利要求 21 - 24任一所述的基站, 其特征在于, 所述第一发送模块还用于: 将分配的小区标识上 4艮给与自身连接的操作与维护系统 OAM设备。
26、 一种中继节点 RN设备, 其特征在于, 该 RN设备包括:
第二发送模块, 用于根据需要分配小区标识的小区的数量, 确定小区信息, 并向基站 发送所述小区信息;
标识确定模块, 用于根据收到的来自基站的分配信息, 确定需要分配小区标识的每个 小区对应的小区标识;
其中, 所述分配信息是所述基站根据为所述 RN设备分配的小区标识确定的。
27、 如权利要求 26所述的 RN设备, 其特征在于, 所述第二发送模块具体用于: 将需要分配小区标识的小区的数量作为小区信息, 或将需要分配小区标识的每个小区 的小区标识特定值作为小区信息。
28、 如权利要求 26所述的 RN设备, 其特征在于, 所述标识确定模块具体用于: 在所述分配信息是小区标识时, 将所述分配信息作为小区标识, 并确定每个小区对应 的小区标识; 或者,
在所述分配信息是小区标识的部分比特时, 填充小区标识的其余比特, 并根据填充后 的小区标识, 确定每个小区对应的小区标识。
29、 如权利要求 26所述的 RN设备, 其特征在于, 所述标识确定模块具体用于: 在 X2接口建立过程中, 或 X2接口建立之前, 或 X2接口配置更新过程中向基站发送 所述小区信息。
30、 如权利要求 26所述的 RN设备, 其特征在于, 所述标识确定模块具体用于: 通过 RRC消息或 2-AP消息发送小区信息。
31、如权利要求 26 - 30任一所述的 RN设备,其特征在于,所述第二发送模块还用于: 将确定的小区标识上报给与自身连接的 OAM设备。
32、如权利要求 26 - 30任一所述的 RN设备,其特征在于,所述第二发送模块还用于: 通知基站小区标识分配完成。
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