CN112788794A

CN112788794A - Processing method, base station, device and medium for starting equipment

Info

Publication number: CN112788794A
Application number: CN201911090335.6A
Authority: CN
Inventors: 王涓涓
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2021-05-11

Abstract

The invention discloses a processing method, a base station, a device and a medium when equipment is started, which comprises the following steps: the next generation base station-distribution unit determines that a local established cell exists after the transmission of a simple control transmission protocol transmission link between the next generation base station-distribution unit and the next generation base station-concentration unit is normal; an F1 interface connection is established to the next generation base station-concentration unit and carries information of the cell where the local establishment is completed. After the transmission of a simple control transmission protocol transmission link between the next generation base station and the distribution unit is normal, the next generation base station-the concentration unit establishes an F1 interface connection to the next generation base station-the concentration unit, establishes an NG interface connection to the 5GC and carries the information of the cell which is established locally; determining an activated cell according to a message returned by the 5GC, and carrying information of the activated cell when establishing the F1 interface connection; and initiating the establishment of a simple control transmission protocol transmission link to the adjacent next generation base station. The invention saves interactive signaling during starting.

Description

Processing method, base station, device and medium for starting equipment

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a processing method, a base station, an apparatus, and a medium for starting a device.

Background

Fig. 1 is a schematic diagram of a 5GSA Network architecture, and as shown in fig. 1, in an SA (independent networking) architecture of a 5G system, a gNB (next generation base station) may establish an NG interface connection with multiple 5 GCs (5G Core networks), and the gNB may establish an XN interface connection with multiple gnbs.

Fig. 2 is a schematic diagram of a 5G NSA network architecture, and as shown in fig. 2, in an NSA (Non-Standalone networking) architecture of a 5G system, a 5G base station en-gNB interfacing with a 4G core network may establish an X2 interface with multiple enbs.

Fig. 3 is a schematic diagram of a CU-DU separation architecture, and as shown in fig. 3, the gNB or en-gNB may be further divided into a gNB-CU (Centralized Unit) and a gNB-DU (distributed Unit), and the gNB-CU may establish an F1 interface with a plurality of gNB-DUs.

For 5G base stations supporting both SA and NSA, they are collectively referred to as gNB in this application.

The gNB-CU establishes a plurality of NG, XN, X2 and F1 interfaces at the same time, and the gNB-DU establishes a plurality of F1 interfaces at the same time. Particularly, the gNB-CU may trigger the setup and configuration update signaling on the four interfaces F1, NG, X2 and XN simultaneously after the initialization is completed when the device is just started.

The defects of the prior art are as follows: in the process of establishing the plurality of interfaces, the occupation of a device CPU may be too high in a short time, and the failure probability of the individual establishing process becomes high.

Disclosure of Invention

The invention provides a processing method, a base station, a device and a medium for starting equipment, which are used for reducing interactive signaling when the equipment is started.

The embodiment of the invention provides a processing method for equipment starting, which comprises the following steps:

after the gNB-DU is normally transmitted in an SCTP transmission link between the gNB-CU and the gNB-DU, determining that the gNB-DU has a cell which is already established locally;

and initiating a process of establishing the F1 interface connection to the gNB-CU, wherein the connection process carries the information of the cell which is established locally on the gNB-DU.

In implementation, the determining that there is a cell on the gbb-DU that has completed the local establishment includes:

when the 1 st cell on the gNB-DU is ready to be established, if other cells configured on the gNB-DU exist and the cells are also in local establishment, a timer T1 is started, and after the timer is overtime, the cells completing the local establishment on the gNB-DU are determined; and/or the presence of a gas in the gas,

after all established cells on the gNB-DU have been established, it is determined that there are cells on the gNB-DU for which local establishment is completed.

In the implementation, the information of the cell that has completed the local establishment on the gNB-DU is carried in the connection procedure, which is carried in the F1SETUP REQUEST message sent out in the connection procedure.

In the implementation, when the cell needs to be deactivated or parameters need to be modified, the method further includes:

starting a timer T2 when a cell needing to be deactivated or parameter modification starts to be deactivated or parameter modification, and initiating a configuration updating flow to a gNB-CU after the timer is overtime; and/or the presence of a gas in the gas,

and after the cell needing to be deactivated or the parameters are modified, initiating a configuration updating flow to the gNB-CU.

In implementation, when initiating the CONFIGURATION UPDATE flow to the gNB-CU, a gNB-DU CONFIGURATION UPDATE message is sent to the gNB-CU.

the gNB-CU determines that the SCTP transmission link between the gNB-CU and the gNB-DU is normally transmitted;

after a gNB-DU initiates a flow of establishing an F1 interface connection to a gNB-CU, the gNB-CU initiates a flow of establishing an NG interface connection to a 5GC, and information of a cell which is locally established on the gNB-DU is carried in the connection flow;

the gNB-CU determines the activated cell according to the message returned by the 5GC in the process of establishing the NG interface connection, and carries the information of the activated cell in the process of establishing the F1 interface connection;

and the gNB-CU initiates the establishment of the SCTP transmission link to the adjacent gNB.

In the implementation, the information of the activated cell is carried in the procedure of establishing the F1 interface connection, and is carried in the F1SETUP RESPONSE message.

In an implementation, when the gNB-DU initiates a configuration update procedure to the gNB-CU, the method further includes:

the gNB-CU initiates a configuration update procedure to all neighboring gNBs.

In implementation, when the gnnb-CU initiates a CONFIGURATION UPDATE procedure to all neighboring gnnbs, an NG-RAN NODE CONFIGURATION UPDATE message is sent to the neighboring gnnbs.

starting a timer T3 when a cell needing to deactivate or modify parameters starts to deactivate or modify parameters, and initiating a configuration updating process to the gNB-DU after the timer is overtime; and/or the presence of a gas in the gas,

and after the cell needing to be deactivated or modified is deactivated or modified, initiating a configuration updating process to the gNB-DU.

In implementation, when initiating a CONFIGURATION UPDATE procedure to the gbb-DU, a gbb-CU CONFIGURATION UPDATE message is sent to the gbb-DU.

The embodiment of the invention provides a base station, which comprises:

a processor for reading the program in the memory, performing the following processes:

after the SCTP transmission link between the gNB-CU and the gNB-DU is normally transmitted, determining that the gNB-DU has a cell which is already established locally;

initiating a process of establishing an F1 interface connection to the gNB-CU, wherein the connection process carries the information of the cell which is established locally on the gNB-DU;

a transceiver for receiving and transmitting data under the control of the processor.

The embodiment of the invention provides a base station, which comprises:

determining that the transmission of the SCTP transmission link between the gNB-CU and the gNB-DU is normal;

after a gNB-DU initiates a flow of establishing an F1 interface connection to a gNB-CU, a flow of establishing an NG interface connection is initiated to a 5GC, and information of a cell which is locally established on the gNB-DU is carried in the connection flow;

determining an activated cell according to a message returned by the 5GC in the process of establishing the NG interface connection, and carrying information of the activated cell in the process of establishing the F1 interface connection;

initiating the establishment of an SCTP transmission link to an adjacent gNB;

the gNB-CU initiates a configuration update procedure to all neighboring gNBs.

The embodiment of the invention provides a processing device for starting equipment, which comprises:

the cell determining module is used for determining that the locally established cell exists on the gNB-DU after the normal transmission of the SCTP transmission link between the gNB-CU and the gNB-DU;

and the connection initiating module is used for initiating a process of establishing the F1 interface connection to the gNB-CU, and the information of the cell which is locally established on the gNB-DU is carried in the connection process.

the determining module is used for determining that the transmission of the SCTP transmission link between the gNB-CU and the gNB-DU is normal;

the connection module is used for initiating a process of establishing an NG interface connection to the 5GC after the gNB-DU initiates a process of establishing an F1 interface connection to the gNB-CU, and information of a cell which is locally established on the gNB-DU is carried in the connection process;

the determining module is further configured to determine an activated cell according to a message returned by the 5GC in the process of establishing the NG interface connection, and carry information of the activated cell in the process of establishing the F1 interface connection;

the connection module is further configured to initiate establishment of an SCTP transmission link to the neighboring gbb.

The embodiment of the invention provides computer equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the processing method of the equipment during starting.

An embodiment of the present invention provides a computer-readable storage medium, which stores a computer program for executing the processing method when the above-described device is started.

The invention has the following beneficial effects:

in the technical solution provided in the embodiment of the present invention, after the SCTP transmission between the gNB-CU and the gNB-DU is normal, the gNB-DU does not immediately trigger the F1 establishment process, but determines that there is a locally established cell on the gNB-DU, and then carries information of the locally established cell on the gNB-DU in the connection flow, that is, delays the trigger time for establishing the SCTP transmission link between the gNB-CU and the gNB-DU and establishing the F1 interface, and reestablishes the transmission link as soon as possible after all configured cells are ready, and after the transmission link is normal, triggers the establishment of the F1 connection. Therefore, more information is contained in the same signaling of F1 interface establishment, XN interface establishment, F1 interface configuration update or XN interface configuration update. The signaling is encoded by PER, and the length of the message occupied after the signaling is fused into one message is far smaller than the sum of the lengths of the messages which are disassembled into a plurality of messages, so that the signaling is saved, and the occupation of bandwidth is reduced.

After receiving a procedure of establishing the F1 interface connection initiated by a gNB-DU to a gNB-CU, the gNB-CU controls transmission, does not establish an SCTP transmission link with another adjacent gNB, but initiates a procedure of establishing an NG interface connection to a 5GC, and initiates establishment of an SCTP transmission link to an adjacent gNB after the information of an activated cell is carried in the procedure of establishing an F1 interface connection, that is, a trigger time of establishment of an SCTP transmission link and establishment of an XN interface between the gNB and another gNB is delayed.

Therefore, more information is contained in the same signaling of F1 interface establishment, XN interface establishment, F1 interface configuration update or XN interface configuration update. The signaling is encoded by PER, and the length of the message occupied after the signaling is fused into one message is far smaller than the sum of the lengths of the messages which are disassembled into a plurality of messages, so that the signaling is saved, and the occupation of bandwidth is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a 5GSA network architecture in the background art;

FIG. 2 is a schematic diagram of a 5G NSA network architecture in the background art;

FIG. 3 is a diagram illustrating a CU-DU separation architecture in the prior art;

fig. 4 is a schematic diagram illustrating a cell activation and various transmission establishment procedures according to an embodiment of the present invention;

fig. 5 is a schematic flow chart illustrating an implementation of a processing method when a gbb-DU side device is started according to an embodiment of the present invention;

FIG. 6 is a schematic flow chart illustrating a processing method for starting the gNB-CU side device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a gNB-CU structure in accordance with an embodiment of the present invention;

fig. 8 is a schematic diagram of a gbb-DU structure according to an embodiment of the present invention.

Detailed Description

The inventor notices in the process of invention that:

the gNB-CU establishes a plurality of NG, XN, X2 and F1 interfaces at the same time, and the gNB-DU establishes a plurality of F1 interfaces at the same time. Particularly, after the device is just started and initialized, the gNB-CU may trigger setup and configuration update signaling on the four interfaces F1, NG, X2, and XN at the same time, and the numerous signaling interactions cause storm on signaling transmission, which may cause the CPU occupancy of the device to be too high in a short time, so that the failure probability of individual setup process becomes high. The following is a specific analysis.

Fig. 4 is a schematic diagram of a cell activation and various transmission establishment procedures, as shown in fig. 4, which mainly includes the following steps:

after normal SCTP (Simple Control Transmission Protocol) link Transmission between the gNB-CU and the gNB-DU, the gNB-DU sends an F1SETUP REQUEST (F1 interface establishment REQUEST) message to the gNB-CU, if the gNB-DU has a prepared cell at the moment, the message can carry the prepared cell information, and if the gNB-DU does not have the prepared cell information, the message can not carry the cell information.

After receiving the message, the gNB-CU triggers an NG establishment or a gNB configuration updating process to the 5GC, and then the gNB-CU replies an F1SETUP RESPONSE (F1 interface establishment RESPONSE) message to the gNB-DU, wherein the message can carry the cell information to be activated, and the gNB-DU activates the cells.

The XN setup or X2 setup procedure is triggered immediately after the gNB-CU activates the cell. And if the subsequent gNB-CU wants to continuously activate other cells, sending a gNB-CU CONFIGURATION UPDATE message to the gNB-DU.

According to the definition of the F1SETUP REQUEST message in the 3GPP protocol, the cell information carried in the message is optional, namely the F1 interface can be triggered to be established after the SCTP is transmitted, and the information of the cell can be notified to the gNB-CU through the subsequent gNB-CU CONFIGURATION UPDATE message. From the practical use scenario, if the gNB-DU is just started, usually a certain time period after normal SCTP transmission, the cell will be ready.

According to the definition of the CONFIGURATION UPDATE procedure in the 3GPP protocol, if the gNB-DU needs to deactivate some cells, it will also trigger the CONFIGURATION UPDATE procedure of the F1 interface, and actively send a gNB-DU CONFIGURATION UPDATE message to the gNB-CU. Similarly, if the gNB-CU needs to activate some prepared cells or the gNB-CU needs to deactivate some cells, the gNB-DU is also informed through the configuration update procedure of the F1 interface.

According to the 3GPP protocol, if the gNB-CU side knows that there is cell activation or deactivation, it triggers configuration update on XN, X2, NG interface. The XN establishment may not carry cell information in the request message of the XN establishment, unlike the X2 establishment.

Assuming that the gNB-CU supports SA and NSA simultaneously, the gNB-CU is connected with 1 gNB-DU, and m cells exist on the gNB-DU. The gNB-CU is connected with n 5GC, j adjacent gNB and k adjacent eNB.

The procedure after the initial startup of the gNB-CU equipment and the gNB-DU equipment is as follows:

1. after normal SCTP transmission between the gNB-CU and the gNB-DU, the gNB-DU sends an F1SETUP REQUEST message to the gNB-CU, the message has no cell information, and the gNB-CU replies an F1SETUP RESPONSE message to the gNB-DU.

2. Meanwhile, after the SCTP between the gNB-CU and other adjacent gNBs is transmitted normally, the XN interface establishment process is triggered to all adjacent gNBs (1 process corresponds to 2 signaling).

3. And after the 1 st cell on the gNB-DU is prepared, the gNB-DU sends a gNB-DU CONFIGURATION UPDATE message to the gNB-CU, wherein the message comprises 1 prepared cell.

4. The gNB-CU sends NG SETUP REQUEST messages to each 5GC, and TA (tracking Area) information brought by the gNB-DU is carried in the messages.

5. After receiving the NG SETUP RESPONSE of 5GC, if there is a PLMN (Public Land Mobile Network) carried in the RESPONSE message consistent with the side of the gNB-DU, the gNB-CU allows the cell to be activated, and replies a gNB-DU CONFIGURATION UPDATE ACKNOWLEDGE message to the gNB-DU, where the message carries the activated cell information.

6. If SCTP transmission between the gNB-CU and all adjacent gNBs is normal, triggering NG-RAN NODE CONFIGURATION UPDATE (NG-RAN NODE CONFIGURATION UPDATE; NG-RAN NODE: Next Generation Radio Access Network NODE) processes (1 process corresponds to 2 signaling) to all adjacent gNBs; the SCTP transmission between the gNB-CU and all adjacent eNBs is normal, and EN-DC X2 SETUP (EN-DC X2 interface establishment; EN-DC: E-UTRA is MCG, NR is SCG double connection, E-UTRA NR gNB-Dual connectivity with MCG using E-UTRA and SCG using NR) processes are triggered to all adjacent eNBs (1 process corresponds to 2 signaling).

Note that: at this time, 4+2n +4j +2k pieces of signaling are triggered together.

7. The second cell on the gNB-DU is ready and sends a gNB-DU CONFIGURATION UPDATE message to the gNB-CU.

8. The gNB-CU triggers an NG-RAN NODE CONFIGURATION UPDATE procedure to all neighboring gNBs, informs that there is new cell activation (1 procedure corresponds to 2 signaling), triggers an EN-DC CONFIGURATION UPDATE procedure to all neighboring eNBs, and informs that there is new cell activation (1 procedure corresponds to 2 signaling). If the newly activated cell carries a new TA, the gNB-CU also triggers a RAN (Radio Access Network) configuration UPDATE procedure to the 5GC, notifies that there is a new list of talets (1 procedure corresponds to 2 signaling), and finally replies a gNB-duconfigurability UPDATE message to the gNB-DU.

Note that: at this time, 2+2n +2j +2k pieces of signaling are triggered again.

Until all cells on this gNB-DU are activated, 2+2j +2m (n + j + k +1) pieces of signaling are triggered altogether.

Secondly, the procedure for triggering all cells to deactivate or modify parameters by the gNB-DU side is as follows:

1. and the gNB-DU sends a gNB-DU CONFIGURATION UPDATE message to the gNB-CU, and informs that 1 cell deactivates or modifies parameters.

2. The gNB-CU triggers an NG-RAN NODE CONFIGURATION UPDATE process to all neighbor gNBs, informs that there is a cell deactivation or modification parameter (1 process corresponds to 2 signaling), triggers an EN-DC CONFIGURATION UPDATE process to all neighbor eNBs, and informs that there is a cell deactivation or modification parameter (1 process corresponds to 2 signaling). If the TAlist of the gNB-CU changes, the gNB-CU can also trigger RAN CONFIGURATION UPDATE process to the 5GC, notify the change of TAList (1 process corresponds to 2 signaling), and finally reply gNB-DU CONFIGURATION UPDATE ACKNOWLEDGE message to the gNB-DU.

Note that: at this time, 1+2n +1+2j +2k pieces of signaling are triggered.

A total of 2m (n + j + k +1) pieces of signaling are triggered until all cells on the gNB-DU deactivate or modify the parameters.

Thirdly, the process of triggering all cells to activate or deactivate or modify parameters by the gNB-CU side is as follows:

1. and the gNB-CU sends a gNB-CU CONFIGURATION UPDATE message to the gNB-DU, and informs that 1 cell activates or deactivates or modifies parameters.

2. And after the gNB-DU activates or deactivates the cell or modifies the parameters, replying a gNB-CU CONFIGURATION UPDATE ACCOWLEDGE message.

3. The gNB-CU triggers an NG-RAN NODE CONFIGURATION UPDATE process to all neighbor gNBs, informs of cell activation or deactivation or parameter modification (1 process corresponds to 2 signaling), triggers an EN-DC CONFIGURATION UPDATE process to all neighbor eNBs, and informs of cell activation or deactivation or parameter modification (1 process corresponds to 2 signaling). If the TAlist of the gNB-CU changes, the gNB-CU can also trigger RAN CONFIGURATION UPDATE process to the 5GC, notify the change of TAList (1 process corresponds to 2 signaling), and finally reply gNB-DU CONFIGURATION UPDATE ACKNOWLEDGE message to the gNB-DU.

Note that: at this time, 1+2n +1+2j +2k pieces of signaling are triggered.

A total of 2m (n + j + k +1) pieces of signaling are triggered until all cells on the gNB-DU activate or deactivate or modify parameters.

In summary, the existing solutions have at least the following two disadvantages:

first, interactive signaling is very much.

According to the above analysis, if the gbb-CU is connected with 25 GCs, 64 neighbor gbbs, 32 neighbor enbs, and 3 cells exist on 1 gbb-DU, the gbb-CU device and the gbb-DU device can generate 718 pieces of signaling when they are started simultaneously.

If the gbb-DU side deletes or modifies all cells in bulk, 594 signalings can be generated.

594 signalings can be generated if the side of the gNB-CU bulk activates or deactivates or modifies all cells on one of the connected gNB-DUs.

According to the definition in 3GPP, 512 cells may be located on 1 gNB-DU, and 136384 cells may be located on 1 gNB-CU, that is, at least 32 gNB-DUs may be connected to 1 gNB-CU, so that the signaling for starting the gNB-CU and the gNB-DU devices and performing cell activation or deactivation or modification in batch is enough to cause storm, which not only occupies a large amount of signaling bandwidth, but also occupies a CPU, and seriously affects the signaling processing of normal users.

And secondly, the concurrent processing is multiple.

The above-mentioned procedures are based on all the procedures are successful, and retransmission after failure is not considered at all. According to the abnormal description of the NG-RAN NODE CONFIGURATION UPDATE procedure and the abnormal description of the EN-DC CONFIGURATION UPDATE procedure in 3GPP, if the gNB receives a failed CONFIGURATION UPDATE response, retransmission is triggered, and the retransmitted message is the same as the previous request. If activation or deactivation or parameter modification of a plurality of cells is continuously triggered, concurrency of the processes needs to be considered, the second configuration needs to be continued after the 1 st configuration updating is successful, and if the 1 st configuration updating fails and needs to be retransmitted, the second updating cannot be simultaneously informed to an opposite terminal network element. In the above flow, if a configuration update failure occurs, a subsequent update flow processing delay may be caused, parameters between devices are not equal, and a user may be affected.

In summary, in the establishment processes of these interfaces, due to the numerous signaling, the CPU occupation of the device may be too high in a short time, and the failure probability of the individual establishment process becomes high.

Based on this, the embodiment of the present invention provides a scheme for reducing signaling interaction, in which, after SCTP transmission and a cell state are complete, more cell information is interacted as much as possible in one signaling flow in a manner of delaying signaling interaction, so as to achieve an effect of avoiding a signaling storm. The following describes embodiments of the present invention with reference to the drawings.

In the description, the implementation of the side of the gNB-CU and the gNB-DU will be described separately, and then an example of the implementation of the two will be given to better understand the implementation of the scheme given in the embodiment of the present invention. Such a description does not mean that the two must be implemented together or separately, and actually, when the gNB-CU and the gNB-DU are implemented separately, the problems on the gNB-C side and the gNB-DU side are solved separately, and when the two are used in combination, a better technical effect is obtained.

Fig. 5 is a schematic implementation flow diagram of a processing method when a gbb-DU side device is started, as shown in the figure, the processing method may include:

step 501, after the gNB-DU is normally transmitted in the SCTP transmission link between the gNB-CU and the gNB-DU, determining that the gNB-DU has a cell which is already established locally;

step 502, initiating a procedure of establishing an F1 interface connection to the gNB-CU, where the connection procedure carries information of the cell that is locally established on the gNB-DU.

Specifically, after the SCTP transmission between the gNB-CU and the gNB-DU is normal, the gNB-DU does not immediately trigger the F1 establishment process, but determines that there is a locally established cell on the gNB-DU, and then carries information of the locally established cell on the gNB-DU in the connection flow, that is, delays the trigger timing for the SCTP transmission link establishment between the gNB-CU and the gNB-DU and the establishment of the F1 interface, and reestablishes the transmission link after all configured cells are prepared as much as possible, and then triggers the establishment of the F1 connection after the transmission link is normal.

Therefore, more information is contained in the same signaling of F1 interface establishment, XN interface establishment, F1 interface configuration update or XN interface configuration update. The signaling is coded by PER (compressed Encoding Rules), and the length of the message occupied after the signaling is fused into one message is far smaller than the sum of the lengths of a plurality of messages which are disassembled, so that the signaling is saved, and the bandwidth occupation is also reduced.

Specifically, the triggering time of the F1 interface configuration update between the gNB-CU and the gNB-DU is delayed, and more information is transmitted by using the least messages.

If the gNB-CU or the gNB-DU is already in the cell activation state and in the user scene, a large amount of CPU processing is used for F1 interface configuration updating or XN interface configuration updating, which causes the processing delay of user signaling and has great influence on the perception of the user. Moreover, the CPU of the device is too high, which may cause various unpredictable abnormalities to occur in the device, so that the updating is performed by adopting a timer or after the processing is finished, so that the occupation of the CPU can be reduced by processing fewer messages, and the occupancy rate of the CPU is reduced.

Meanwhile, for the same device, the XN interface configuration update or the F1 interface configuration update is continuously triggered, if the previous configuration update fails, the old configuration update needs to be retransmitted, the configuration modification content triggered later is cached, and the cached modification is processed in sequence, so that the processing is very complex, errors are more likely to occur, the configuration stored between network elements is inconsistent, and the UE is affected, therefore, the processing complexity of the gNB-CU and the gNB-DU can be reduced by adopting a timer or updating after finishing the processing.

Fig. 6 is a schematic flow chart of an implementation of a processing method when the gsb-CU side device is started, as shown in the figure, the processing method may include:

601, the gNB-CU determines that the transmission of the SCTP transmission link between the gNB-CU and the gNB-DU is normal;

step 602, after the gNB-DU initiates a flow of establishing an F1 interface connection to the gNB-CU, the gNB-CU initiates a flow of establishing an NG interface connection to the 5GC, and the information of the cell which is locally established on the gNB-DU is carried in the connection flow;

step 603, the gNB-CU determines the activated cell according to the message returned by the 5GC in the process of establishing the NG interface connection, and carries the information of the activated cell in the process of establishing the F1 interface connection;

and step 604, the gNB-CU initiates the establishment of the SCTP transmission link to the adjacent gNB.

Specifically, after receiving a procedure of establishing an F1 interface connection initiated by a gNB-DU to a gNB-CU, the gNB-CU controls transmission, does not establish an SCTP transmission link with another adjacent gNB, but initiates a procedure of establishing an NG interface connection to a 5GC, and initiates establishment of an SCTP transmission link to an adjacent gNB after information of an activated cell is carried in the procedure of establishing an F1 interface connection, that is, a trigger timing of establishment of an SCTP transmission link and establishment of an XN interface between the gNB and another gNB is delayed.

the gNB-CU initiates a configuration update procedure to all neighboring gNBs.

Specifically, the trigger time of the XN interface configuration update between the gNB and other gnbs is delayed, and more information is delivered using the least messages.

The following is a description of specific examples.

1. and after the SCTP between the gNB-CU and the gNB-DU is normally transmitted, the gNB-DU does not immediately trigger the F1 establishment process and waits for the cell which is locally established on the gNB-DU.

When the 1 st cell on the gNB-DU is ready, if other cells are configured and the cells are also in the local cell establishment, starting a timer T1, and after the timer is overtime; or after the cells in the local establishment are all established, sending an F1SETUP REQUEST message to the gNB-CU, wherein the message carries all prepared cells.

In the example, the duration of the timer T1 is assumed to be 10s, and in particular, the duration may be set according to experience or actual needs.

2. Meanwhile, the gNB-CU controls the transmission and does not establish SCTP transmission links with other adjacent gNBs.

3. And the gNB-CU sends an NG SETUP REQUEST message to the 5GC, wherein the message carries the TA information brought by the gNB-DU.

4. After receiving the NG SETUP RESPONSE of 5GC, if the PLMN carried in the message is consistent with the side of the gNB-DU, the gNB-CU allows the cell to be activated, and replies an F1SETUP RESPONSE message to the gNB-DU, where the message carries the activated cell information.

5. The gNB-CU releases the SCTP transport link with the neighboring gNB allowing the transport to be established. After the SCTP transmission link is successfully established, an XN establishment procedure is triggered to the neighboring gnnb (1 procedure corresponds to 2 signaling).

6. Meanwhile, if the SCTP transport link of the gNB-CU with the neighbor eNB is already normal, an EN-DC X2 SETUP procedure is triggered to the neighbor eNB (1 procedure corresponds to 2 signaling).

At this time, 2+2n +2j +2k, i.e., 2(n + j + k +1) pieces of signaling, are triggered altogether.

According to the above scheme, if all cells are ready within T1 seconds after the gNB-DU is started, the number of required signaling is 2(n + j + k +1), and 198 total signaling is required according to the same evaluation condition in the previous chapter.

1. considering that most operations of the communication equipment are batch processing, especially service quitting and parameter change caused by abnormality occur in sequence, if the gNB-DU side has cell deactivation or parameter modification, a timer T2 is started, and after the timer is overtime or all operations on the cell are completed, a gNB-DU CONFIGURATION UPDATE message is sent to the gNB-CU.

In the example, it can be assumed that the duration of the timer T2 is 5s, and in particular, the duration can be set according to experience or actual needs.

2. The gNB-CU triggers an NG-RAN NODE CONFIGURATION UPDATE process to all neighbor gNBs, informs that there is a cell deactivation or modification parameter (1 process corresponds to 2 signaling), triggers an EN-DC CONFIGURATION UPDATE process to all neighbor eNBs, and informs that there is a cell deactivation or modification parameter (1 process corresponds to 2 signaling).

If the taiist of the gNB-CU changes after the cell is deactivated or the parameters are modified, the gNB-CU also triggers the RAN CONFIGURATION updating process to the 5GC, informs the change of TAList (1 process corresponds to 2 signaling), and finally replies a gNB-DU CONFIGURATION UPDATE ACKNOWLEDGE message to the gNB-DU.

At this time, 1+2n +1+2j +2k, i.e., 2(n + j + k +1) pieces of signaling, are triggered.

According to the above scheme, if all cells are deactivated or modified in batch at the side of the gNB-DU and all the cells are operated within T2 seconds, the required signaling number is 2(n + j + k +1), and 198 total signaling is required according to the same evaluation condition.

1. considering that most operations of the communication equipment are batch processing, especially service quitting and parameter change caused by abnormality occur in sequence, if the gNB-CU side has cell activation or deactivation or parameter modification, a timer T3 is started, after the timer is overtime or all operations on the cell are completed, a gNB-CU CONFIGURATION UPDATE message is sent to the gNB-DU, and 1 cell activation or deactivation or parameter modification is notified.

In the example, it can be assumed that the duration of the timer T3 is 5s, and in particular, the duration can be set according to experience or actual needs.

3. The gNB-CU triggers an NG-RAN NODE CONFIGURATION UPDATE process to all neighbor gNBs, informs of cell activation or deactivation or parameter modification (1 process corresponds to 2 signaling), triggers an EN-DC CONFIGURATION UPDATE process to all neighbor eNBs, and informs of new cell deactivation (1 process corresponds to 2 signaling).

If the TAlist of the gNB-CU changes, the gNB-CU can also trigger RAN CONFIGURATION UPDATE process to the 5GC, notify the change of TAList (1 process corresponds to 2 signaling), and finally reply gNB-DU CONFIGURATION UPDATE ACKNOWLEDGE message to the gNB-DU.

According to the scheme, if the side of the gNB-CU activates or deactivates or modifies all the cells on the same gNB-DU connected with the side of the gNB-CU in batch, and all the cells are operated within T3 seconds, the required signaling quantity is 2(n + j + k +1), and 198 signaling is required in total according to the same evaluation condition.

Based on the same inventive concept, the embodiment of the present invention further provides a base station, a processing apparatus when the device is started, a computer device, and a computer-readable storage medium, and because the principle of solving the problem of these devices is similar to the processing method when the device is started, the implementation of these devices may refer to the implementation of the method, and repeated details are not repeated.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.

Fig. 7 is a schematic structural diagram of a gbb-CU, as shown in the figure, the base station includes:

the processor 700, which is used to read the program in the memory 720, executes the following processes:

a transceiver 710 for receiving and transmitting data under the control of the processor 700.

Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

Fig. 8 is a schematic diagram of a gbb-DU structure, as shown, a base station includes:

the processor 800, which is used to read the program in the memory 820, executes the following processes:

initiating the establishment of an SCTP transmission link to an adjacent gNB;

a transceiver 810 for receiving and transmitting data under the control of the processor 800.

the gNB-CU initiates a configuration update procedure to all neighboring gNBs.

Where in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

For specific implementation, see implementation of the processing method when the device on the side of the gNB-CU is started.

For specific implementation, refer to implementation of the processing method when the device on the gbb-DU side is started.

In the specific implementation, reference may be made to the implementation of the processing method at the time of starting the devices on the gbb-CU side and/or the gbb-DU side.

In summary, the technical solutions provided in the embodiments of the present invention mainly include:

delaying the trigger time of SCTP transmission link establishment and F1 interface establishment between the gNB-CU and the gNB-DU, establishing a transmission link after all configured cells are prepared as far as possible, and triggering and establishing F1 connection after the transmission link is normal. The complete protection mechanism is provided, and the F1 interface establishment is not triggered due to delay.

And delaying the trigger opportunity of F1 interface configuration update between the gNB-CU and the gNB-DU, and transmitting more information by using the least messages. The complete protection mechanism is provided, and the F1 interface configuration updating interface is not triggered due to delay.

Delaying the trigger time of SCTP transmission link establishment and XN interface establishment between the gNB and other gNB, establishing the SCTP transmission link after all the cells needing to be activated are prepared as much as possible, and triggering the establishment of the XN interface connection after the transmission link is normal. The complete protection mechanism is provided, and XN interface establishment is not triggered due to delay.

And delaying the trigger time of the configuration update of the XN interface between the gNB and other gNBs, and transmitting more information by using the least messages. The complete protection mechanism is provided, and the XN interface configuration updating interface cannot be triggered due to delay.

By adopting the technical scheme provided by the embodiment, the signaling quantity interacted with other network elements after the gNB is started or the cell is operated (including cell activation or cell deactivation or cell parameter modification) can be obviously reduced. Taking the aforementioned evaluation model as an example, the signaling triggered by the activation of the gNB-CU and the gNB-DU is reduced from 718 to 198. The signaling triggered by batch operation of all cells on the gNB-DU side is reduced from 594 to 198. The signaling triggered by all cells on the same gbb-DU to which the gbb-CU side bulk operation is connected is reduced from 594 to 198. The reduced number of signalling pieces is even more considerable if a maximum of 32 gNB-CU evaluations are connected according to 1 gNB-CU. Reducing signaling interaction provides at least one of the following benefits:

and the occupation of bandwidth is reduced. As more information is contained in the same signaling of the F1 interface establishment or the XN interface establishment or the F1 interface configuration update or the XN interface configuration update. The signaling is encoded by PER, and the length of the message occupied by the signaling after being fused into one message is far smaller than the sum of the lengths of the signaling after being split into a plurality of messages.

The occupancy rate of the CPU is reduced. The CPU footprint may be reduced due to processing fewer messages. If the gNB, the gNB-CU or the gNB-DU is already in cell activation and in a user scenario, a large amount of CPU processing is used for F1 interface configuration update or XN interface configuration update, which may cause processing delay of user signaling and greatly affect perception of the user. Also, excessive CPU height of the device may cause various unpredictable anomalies to the device.

The processing complexity of the gNB or gNB-CU or gNB-DU is reduced. Because for the same device, the XN interface configuration update or the F1 interface configuration update is continuously triggered, if the previous configuration update fails, the old configuration update needs to be retransmitted, the configuration modification content triggered later is cached, and the cached modifications are processed in sequence.

As will be appreciated by one skilled in the art, embodiments of the present invention may 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 an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A processing method for starting up equipment is characterized by comprising the following steps:

after a simple control transmission protocol SCTP transmission link between a next generation base station-centralized unit gNB-CU and a gNB-DU is normally transmitted by a next generation base station-distribution unit gNB-DU, determining that a cell which is locally established exists on the gNB-DU;

2. The method of claim 1, wherein determining that there is a cell on a gNB-DU for which local establishment has been completed comprises:

3. The method of claim 1, wherein the information that the cell established locally on the gbb-DU is carried in the connection procedure is carried in an F1 interface SETUP REQUEST F1SETUP REQUEST message issued in the connection procedure.

4. The method of any of claims 1 to 3, wherein when the cell needs to be deactivated or parameters need to be modified, further comprising:

5. The method of claim 4, wherein when initiating the configuration UPDATE procedure to the gNB-CU, sending a next generation base station distribution unit configuration UPDATE gNB-configuration UPDATE message to the gNB-CU.

6. A processing method for starting up equipment is characterized by comprising the following steps:

after a gNB-DU initiates a flow of establishing an F1 interface connection to the gNB-CU, the gNB-CU initiates a flow of establishing an NG interface connection to a 5G core network 5GC, and the information of the cell which is locally established on the gNB-DU is carried in the connection flow;

7. The method of claim 6, wherein the information of the activated cell carried in the procedure of establishing the F1 interface connection is carried in an F1SETUP RESPONSE message.

8. The method according to one of claims 6 to 7, wherein when the gNB-DU initiates a configuration update procedure to the gNB-CU, the method further comprises:

the gNB-CU initiates a configuration update procedure to all neighboring gNBs.

9. The method of claim 8, wherein when the gNB-CU initiates a CONFIGURATION UPDATE procedure to all neighboring gNBs, a next generation radio access network NODE CONFIGURATION UPDATE message is sent to the neighboring gNB.

10. The method of any of claims 6 to 7, wherein when the cell needs to be deactivated or parameters need to be modified, further comprising:

11. The method of claim 10, wherein when initiating the CONFIGURATION UPDATE procedure to the gNB-DU, a next generation base station hub unit CONFIGURATION UPDATE gNB-CU CONFIGURATION UPDATE message is sent to the gNB-DU.

12. A base station, comprising:

13. The base station of claim 12, wherein determining that there is a cell on the gNB-DU for which local establishment has been completed comprises:

14. The base station of claim 12, wherein the information that the local SETUP of the cell over the gNB-DU is completed is carried in a connection procedure in an F1SETUP REQUEST message sent out in the connection procedure.

15. The base station of any of claims 12 to 14, wherein when the cell needs to be deactivated or parameters need to be modified, further comprising:

16. The base station of claim 15, wherein a gNB-DU CONFIGURATION UPDATE message is sent to the gNB-CU when initiating the CONFIGURATION UPDATE procedure to the gNB-CU.

17. A base station, comprising:

initiating the establishment of an SCTP transmission link to an adjacent gNB;

18. The base station of claim 17, wherein the information of the activated cell carried in the procedure of establishing the F1 interface connection is carried in a F1SETUP RESPONSE message.

19. The base station according to one of claims 17 to 18, wherein when the gNB-DU initiates a configuration update procedure to the gNB-CU, further comprising:

the gNB-CU initiates a configuration update procedure to all neighboring gNBs.

20. The base station of claim 19, wherein the neighbor gNB sends an NG-RAN NODE CONFIGURATION UPDATE message when the gNB-CU initiates a CONFIGURATION UPDATE procedure to all neighbor gNBs.

21. The base station of any of claims 17 to 18, when it is necessary to deactivate the cell or modify the parameters, further comprising:

22. The base station of claim 21, wherein a gNB-CU CONFIGURATION UPDATE message is sent to the gNB-DU when initiating a CONFIGURATION UPDATE procedure with the gNB-DU.

23. A processing apparatus at start-up of a device, comprising:

24. A processing apparatus at start-up of a device, comprising:

25. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 11 when executing the computer program.

26. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 11.