CN110072276B - Wireless network element cooperation method, distributed unit and centralized unit - Google Patents
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Abstract
The invention provides a wireless network element cooperation method, a distributed unit and a centralized unit, and belongs to the technical field of wireless communication. The wireless network element cooperation method applied to the distributed units comprises the following steps: after the centralized unit configures the user terminal, the distributed unit activates the functions configured by the user terminal and/or configures the functions of the distributed unit; the distributed unit informs the centralized unit of the activated functions of the user terminal and/or the configured own functions. The technical scheme of the invention can realize the synchronization of the decision information between the centralized unit and the distributed unit.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a wireless network element coordination method, a distributed unit, and a centralized unit.
Background
Currently, the 5G standard introduces a CU (Centralized Unit)/DU (Distributed Unit) standardized architecture, where CU carries RRC (Radio Resource Control), PDCP (Packet Data Convergence Protocol), and SDAP (Service Discovery Application Profile) functions, and DU carries RLC (Radio Link Control, Radio Link layer Control Protocol), MAC (Media Access Control), and PHY (Physical layer) functions.
In order to guarantee timeliness of base station control, part of network decisions may be handed over to DU distribution, and since part of the decisions of DU distribution may involve adjustment of CU behavior, synchronization between DU and CU is required when DU distribution involves decisions of CU behavior change.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a wireless network element coordination method, a distributed unit and a centralized unit, which can realize the synchronization of decision information between the centralized unit and the distributed unit.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a wireless network element coordination method is provided, which is applied to a distributed unit, and the method includes:
after the centralized unit configures the user terminal, the distributed unit activates the functions configured by the user terminal and/or configures the functions of the distributed unit;
the distributed unit informs the centralized unit of the activated functions of the user terminal and/or the configured own functions.
Further, the method specifically comprises:
after the centralized unit performs PDCP packet data centralized protocol replication configuration on the user terminal, the distributed unit activates an uplink PDCP replication function of the user terminal after meeting a preset condition;
the distributed unit informs the centralized unit that an uplink PDCP duplication function of the user terminal is activated.
Further, after the distributed unit meets a preset condition, activating an uplink PDCP copy function of the ue includes:
and when the real-time wireless environment quality of the user terminal is lower than a preset threshold value, the distributed unit activates an uplink PDCP copy function of the user terminal through a Media Access Control (MAC) Control Element (CE) signaling.
Further, the notifying, by the distributed unit, that the uplink PDCP replication function of the user equipment is activated by the centralized unit includes:
the distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a port F1; or
The distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a bearer management message; or
The distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a data control function message; or
And the distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a flow control function message.
Further, the method specifically comprises:
after the centralized unit performs information configuration of a plurality of cells in a distributed unit on the user terminal, the distributed unit activates one or more cells in the plurality of cells based on a preset decision condition;
the distributed unit informs the centralized unit that one or more of the plurality of cells are activated, so that the centralized unit adjusts serving cell information of the user terminal.
Further, the activating, by the distributed unit, one or more cells of the plurality of cells based on a preset decision condition comprises:
the distributed unit activates one or more cells of the plurality of cells based on real-time radio environment information of the user terminal.
Further, the method specifically comprises:
after the centralized unit configures a scheduling free grant free for the user terminal, the distributed unit activates and/or configures a grant free resource for the user terminal;
and the distributed unit informs the centralized unit of the grant free resource allocation and/or resources of the user terminal.
The embodiment of the invention also provides a wireless network element cooperation method which is applied to a centralized unit and comprises the following steps: the centralized unit receives a notification sent by the distributed unit indicating the activated functions of the user terminal and/or the configured functions of the distributed unit.
The embodiment of the invention also provides a distributed unit, which comprises a processor and a transceiver,
the processor is used for activating the functions configured by the user terminal and/or configuring the functions of the processor after the centralized unit configures the user terminal;
the transceiver is adapted to inform the centralized unit about the activated functions of the user terminal and/or the configured own functions.
Further, the air conditioner is provided with a fan,
the processor is specifically configured to activate an uplink PDCP replication function of the user equipment after the centralized unit performs PDCP packet data centralized protocol replication configuration on the user equipment and meets a preset condition;
the transceiver is specifically configured to notify the centralized unit that an uplink PDCP replication function of the user terminal is activated.
Further, the processor is specifically configured to activate an uplink PDCP replication function of the user equipment through a media access control, MAC, control element, CE, signaling when the real-time radio environment quality of the user equipment is lower than a preset threshold.
Further, the transceiver is specifically configured to notify the centralized unit through port F1 that the uplink PDCP replication function of the user terminal is activated; or
Informing the centralized unit that an uplink PDCP copy function of the user terminal is activated through a bearer management message; or
Informing the centralized unit that an uplink PDCP copy function of the user terminal is activated through a data control function message; or
Informing the centralized unit that the uplink PDCP copy function of the user terminal is activated through a flow control function message.
Further, the processor is specifically configured to activate one or more cells of the multiple cells based on a preset decision condition after the centralized unit performs information configuration of the multiple cells in the distributed unit on the user terminal;
the transceiver is specifically configured to notify the centralized unit that one or more cells of the plurality of cells are activated, so that the centralized unit adjusts serving cell information of the ue.
Further, the processor is specifically configured to activate one or more cells of the plurality of cells based on real-time radio environment information of the user terminal.
Further, the processor is specifically configured to activate and/or configure a grant free resource for the ue after the centralized unit configures a scheduling free grant free for the ue;
the transceiver is specifically configured to notify the centralized unit of the grant free resource allocation and/or resources of the ue.
The embodiment of the invention also provides a centralized unit, which comprises a processor and a transceiver,
the transceiver is configured to receive a notification sent by the distributed unit, the notification indicating the activated function of the user terminal and/or the configured function of the distributed unit.
The embodiment of the invention also provides a distributed unit, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the above-mentioned wireless network element cooperation method when executing the program.
The embodiment of the invention also provides a centralized unit, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the above-mentioned wireless network element cooperation method when executing the program.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the wireless network element coordination method described above.
The embodiment of the invention has the following beneficial effects:
in the above solution, after the centralized unit configures the user terminal, the distributed unit activates the function configured by the user terminal and/or configures the function of the distributed unit, and notifies the activated function of the user terminal and/or the configured function of the distributed unit to the centralized unit, so that the synchronization of the decision information between the centralized unit and the distributed unit can be realized, and the centralized unit adjusts the corresponding behavior thereof.
Drawings
Fig. 1 is a schematic flowchart of a wireless network element cooperation method applied to a distributed unit according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for cooperating a wireless network element in a centralized unit according to an embodiment of the present invention;
fig. 3-6 are schematic diagrams of signaling interaction between a centralized unit, a distributed unit and a user terminal according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a distributed unit according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a centralized unit according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Embodiments of the present invention provide a wireless network element coordination method, a distributed unit, and a centralized unit, which can implement synchronization of decision information between the centralized unit and the distributed unit.
An embodiment of the present invention provides a wireless network element coordination method, which is applied to a distributed unit, and as shown in fig. 1, the method includes:
step 101: after the centralized unit configures the user terminal, the distributed unit activates the functions configured by the user terminal and/or configures the functions of the distributed unit;
step 102: the distributed unit informs the centralized unit of the activated functions of the user terminal and/or the configured own functions.
Wherein the distributed unit notifying the centralized unit of the activated and/or configured function comprises the distributed unit reporting the activated and/or configured function to the centralized unit, which are all functions that make the centralized unit aware of the activation and/or configuration.
In this embodiment, after the centralized unit configures the user terminal, the distributed unit activates the function configured by the user terminal and/or configures the function of the distributed unit, and notifies the activated function of the user terminal and/or the configured function of the distributed unit to the centralized unit, so that the synchronization of the decision information between the centralized unit and the distributed unit can be realized, and the centralized unit adjusts the corresponding behavior thereof.
Further, the method specifically comprises:
after the centralized unit performs PDCP (packet data convergence protocol) replication configuration on the user terminal, the distributed unit activates an uplink PDCP replication function of the user terminal after meeting a preset condition;
the distributed unit informs the centralized unit that an uplink PDCP duplication function of the user terminal is activated.
Further, after the distributed unit meets a preset condition, activating an uplink PDCP copy function of the ue includes:
and when the real-time wireless environment quality of the user terminal is lower than a preset threshold value, the distributed unit activates an uplink PDCP copy function of the user terminal through a Media Access Control (MAC) Control Element (CE) signaling.
Further, the notifying, by the distributed unit, that the uplink PDCP replication function of the user equipment is activated by the centralized unit includes:
the distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a port F1; or
The distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a bearer management message; or
The distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a data control function message; or
And the distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a flow control function message.
Further, the method specifically comprises:
after the centralized unit performs information configuration of a plurality of cells in a distributed unit on the user terminal, the distributed unit activates one or more cells in the plurality of cells based on a preset decision condition;
the distributed unit informs the centralized unit that one or more of the plurality of cells are activated, so that the centralized unit adjusts serving cell information of the user terminal.
Further, the activating, by the distributed unit, one or more cells of the plurality of cells based on a preset decision condition comprises:
the distributed unit activates one or more cells of the plurality of cells based on real-time radio environment information of the user terminal.
Further, the method specifically comprises:
after the centralized unit performs grant free (scheduling-free) configuration on the user terminal, the distributed unit activates and/or configures grant free resources for the user terminal;
and the distributed unit informs the centralized unit of the grant free resource allocation and/or resources of the user terminal.
An embodiment of the present invention further provides a wireless network element coordination method, which is applied to a centralized unit, and as shown in fig. 2, the method includes:
step 201: the centralized unit receives a notification sent by the distributed unit indicating the activated functions of the user terminal and/or the configured functions of the distributed unit.
In this embodiment, after the centralized unit configures the user terminal, the distributed unit activates the function configured by the user terminal and/or configures the function of the distributed unit, and notifies the activated function of the user terminal and/or the configured function of the distributed unit to the centralized unit, so that the synchronization of the decision information between the centralized unit and the distributed unit can be realized, and the centralized unit adjusts the corresponding behavior thereof.
The following describes the wireless network element coordination method of the present invention in detail with reference to specific embodiments:
detailed description of the preferred embodiment
As shown in fig. 3, the method for coordinating a wireless network element of this embodiment includes the following steps:
CU configures UE, mainly RRC of CU configures UE, such as PDCPduplication (copy) configuration;
specifically, the PDCP duplication may be indicated by using a spare extension, and if the ue is uplink, after receiving the duplication indication, the ue carries a corresponding duplication indication in the first uplink data packet. After receiving the indication, the base station side knows the corresponding data packet processing mode.
Under a certain condition, for example, the real-time wireless environment quality of the UE is lower than a preset threshold, the DU triggers and activates UL (uplink) PDCP duplicate through the MAC CE (control element);
the DU informs the CU of its activation behavior, and depending on whether the activation procedure is per UE or per bearer activation, there may be different signaling manners, and specifically, the CU may be notified that the UL PDCP replication function of the UE is activated through port F1.
The processing method may also be applied to a process including handover decision distribution based on DU MAC CE.
Detailed description of the invention
As shown in fig. 4, the method for coordinating a wireless network element of this embodiment includes the following steps:
CU configures UE, mainly RRC of CU configures UE, such as PDCPduplication (copy) configuration;
2, DU activates UL PDCP duplicate function of UE through MAC CE;
the DU informs the CU that the UL PDCP duplicate function of the UE is activated through a bearer management message; or informing the CU that the UL PDCP duplicate function of the UE is activated through a data control function message; and informing the CU that the UL PDCP duplicate function of the UE is activated through a flow control function message.
Detailed description of the preferred embodiment
As shown in fig. 5, the method for coordinating a wireless network element of this embodiment includes the following steps:
1, a CU configures UE, mainly configuring information of a plurality of cells of an intra-DU of the UE by the RRC of the CU;
activating corresponding configuration of the UE side by the DU, for example, selecting a certain cell or certain cells in the multiple cells based on real-time wireless environment information decision;
and 3, informing the CU of intra-DU cell decision by the DU, so that the CU adjusts the service cell information related to the UE.
Detailed description of the invention
As shown in fig. 6, the method for coordinating a wireless network element of this embodiment includes the following steps:
1, a CU configures UE, and the CU configures a grant free for the UE;
activating DU and/or configuring grant free resource for UE;
and 3, informing and/or reporting grant free resources and/or configuration of the CU UE by the DU.
Embodiments of the present invention also provide a distributed unit, as shown in fig. 7, including a processor 31 and a transceiver 32,
the processor 31 is configured to activate a function configured by the user terminal and/or configure a function of the processor after the centralized unit configures the user terminal;
the transceiver 32 is arranged to inform the centralized unit about the activated functions of the user terminal and/or the configured own functions.
In this embodiment, after the centralized unit configures the user terminal, the distributed unit activates the function configured by the user terminal and/or configures the function of the distributed unit, and notifies the activated function of the user terminal and/or the configured function of the distributed unit to the centralized unit, so that the synchronization of the decision information between the centralized unit and the distributed unit can be realized, and the centralized unit adjusts the corresponding behavior thereof.
Further, the air conditioner is provided with a fan,
the processor 31 is specifically configured to activate an uplink PDCP replication function of the user equipment after the centralized unit performs PDCP packet data centralized protocol replication configuration on the user equipment and meets a preset condition;
the transceiver 32 is specifically configured to notify the centralized unit that the uplink PDCP replication function of the user terminal is activated.
Further, the processor 31 is specifically configured to activate an uplink PDCP replication function of the user equipment through a media access control, MAC, control element, CE, signaling when the real-time radio environment quality of the user equipment is lower than a preset threshold.
Further, the transceiver 32 is specifically configured to notify the centralized unit through port F1 that the uplink PDCP replication function of the user terminal is activated; or
Informing the centralized unit that an uplink PDCP copy function of the user terminal is activated through a bearer management message; or
Informing the centralized unit that an uplink PDCP copy function of the user terminal is activated through a data control function message; or
Informing the centralized unit that the uplink PDCP copy function of the user terminal is activated through a flow control function message.
Further, the processor 31 is specifically configured to activate one or more cells in the multiple cells based on a preset decision condition after the centralized unit performs information configuration on the multiple cells in the distributed unit on the user terminal;
the transceiver 32 is specifically configured to notify the centralized unit that one or more cells of the plurality of cells are activated, so that the centralized unit adjusts the serving cell information of the ue.
Further, the processor 31 is specifically configured to activate one or more cells of the multiple cells based on the real-time radio environment information of the user terminal.
Further, the processor 31 is specifically configured to activate and/or configure a grant free resource for the ue after the centralized unit configures a scheduling free grant free for the ue;
the transceiver 32 is specifically configured to notify the centralized unit of the grant free resource allocation and/or resource of the ue.
Embodiments of the present invention also provide a centralized unit, as shown in fig. 8, including a processor 41 and a transceiver 42,
the transceiver 42 is configured to receive a notification sent by the distributed unit indicating the activated functions of the user terminal and/or the configured functions of the distributed unit.
In this embodiment, after the centralized unit configures the user terminal, the distributed unit activates the function configured by the user terminal and/or configures the function of the distributed unit, and notifies the activated function of the user terminal and/or the configured function of the distributed unit to the centralized unit, so that the synchronization of the decision information between the centralized unit and the distributed unit can be realized, and the centralized unit adjusts the corresponding behavior thereof.
The embodiment of the invention also provides a distributed unit, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the above-mentioned wireless network element cooperation method when executing the program.
The embodiment of the invention also provides a centralized unit, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the above-mentioned wireless network element cooperation method when executing the program.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the wireless network element coordination method described above.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A wireless network element coordination method applied to a distributed unit, the method comprising:
after a centralized unit configures a scheduling free grant free for a user terminal, a distributed unit activates and/or configures grant free resources for the user terminal;
and the distributed unit informs the centralized unit of the grant free resource allocation and/or resources of the user terminal.
2. The method of claim 1, wherein the method further comprises:
after the centralized unit performs PDCP packet data centralized protocol replication configuration on the user terminal, the distributed unit activates an uplink PDCP replication function of the user terminal after meeting a preset condition;
the distributed unit informs the centralized unit that an uplink PDCP duplication function of the user terminal is activated.
3. The method as claimed in claim 2, wherein the activating, by the distributed unit, the uplink PDCP replication function of the ue after the preset condition is met includes:
and when the real-time wireless environment quality of the user terminal is lower than a preset threshold value, the distributed unit activates an uplink PDCP copy function of the user terminal through a Media Access Control (MAC) Control Element (CE) signaling.
4. The method as claimed in claim 2, wherein the notifying, by the distributed unit, the centralized unit that the uplink PDCP replication function of the user terminal is activated comprises:
the distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a port F1; or
The distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a bearer management message; or
The distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a data control function message; or
And the distributed unit informs the centralized unit that the uplink PDCP copy function of the user terminal is activated through a flow control function message.
5. The method of claim 1, wherein the method further comprises:
after the centralized unit performs information configuration of a plurality of cells in the distributed unit on the user terminal, the distributed unit activates one or more cells in the plurality of cells based on a preset decision condition;
the distributed unit informs the centralized unit that one or more of the plurality of cells are activated, so that the centralized unit adjusts serving cell information of the user terminal.
6. The method as claimed in claim 5, wherein the activating one or more cells of the plurality of cells by the distributed unit based on a preset decision condition comprises:
the distributed unit activates one or more cells of the plurality of cells based on real-time radio environment information of the user terminal.
7. A method for wireless network element coordination, applied to a centralized unit, the method comprising:
the centralized unit configures a scheduling free grant free for the user terminal;
activating and/or configuring a grant free resource for the user terminal by a distributed unit;
and then the distributed unit informs the centralized unit of the grant free resource allocation and/or resources of the user terminal.
8. A distributed unit comprising a processor and a transceiver,
the processor is used for activating and/or configuring grant free resources for the user terminal after the centralized unit configures the scheduling free resource for the user terminal;
the transceiver is configured to notify the centralized unit of the grant free resource allocation and/or resources of the ue.
9. The distributed unit of claim 8,
after the centralized unit performs PDCP packet data centralized protocol replication configuration on the user terminal, the processor is specifically configured to activate an uplink PDCP replication function of the user terminal after a preset condition is met;
the transceiver is specifically configured to notify the centralized unit that an uplink PDCP replication function of the user terminal is activated.
10. The distributed unit of claim 9,
the processor is specifically configured to activate an uplink PDCP replication function of the user equipment through a media access control, MAC, control element, CE, signaling when a real-time radio environment quality of the user equipment is lower than a preset threshold.
11. The distributed unit of claim 9,
the transceiver is specifically configured to notify the centralized unit through port F1 that the uplink PDCP replication function of the user terminal is activated; or
Informing the centralized unit that an uplink PDCP copy function of the user terminal is activated through a bearer management message; or
Informing the centralized unit that an uplink PDCP copy function of the user terminal is activated through a data control function message; or
Informing the centralized unit that the uplink PDCP copy function of the user terminal is activated through a flow control function message.
12. The distributed unit of claim 8,
the processor is specifically configured to activate one or more cells of the multiple cells based on a preset decision condition after the centralized unit performs information configuration of the multiple cells in the distributed unit on the user terminal;
the transceiver is specifically configured to notify the centralized unit that one or more cells of the plurality of cells are activated, so that the centralized unit adjusts serving cell information of the ue.
13. The distributed unit of claim 12,
the processor is specifically configured to activate one or more of the plurality of cells based on real-time radio environment information of the user terminal.
14. A centralized unit comprising a processor and a transceiver,
the transceiver is configured to receive a notification sent by a distributed unit after a centralized unit performs scheduling free grant free configuration on a user terminal, where the centralized unit notifies the grant free resource configuration and/or resources of the user terminal after the distributed unit activates and/or configures grant free resources for the user terminal.
15. A distributed unit comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the processor is characterized in that the processor implements the wireless network element cooperation method according to any one of claims 1 to 6 when executing the program.
16. A centralized unit comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the processor, when executing the program, implements the method of cooperating in a radio network element according to claim 7.
17. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the radio network element cooperation method according to one of the claims 1 to 6 or the steps in the radio network element cooperation method according to claim 7.
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| CN112423316A (en) * | 2019-08-22 | 2021-02-26 | 中兴通讯股份有限公司 | Cooperative channel management method, device and base station |
| CN110913409B (en) * | 2019-11-21 | 2022-08-26 | 中国联合网络通信集团有限公司 | Network configuration method, device and system |
| WO2022021042A1 (en) * | 2020-07-28 | 2022-02-03 | Zte Corporation | Controlling uplink duplication in packet data convergence protocol layer |
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