CN113973317B - Configuration method, device and system for packet data convergence protocol replication - Google Patents
Configuration method, device and system for packet data convergence protocol replication Download PDFInfo
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
Abstract
The present disclosure provides a method, apparatus and system for configuring packet data convergence protocol replication. The configuration device for copying the packet data convergence protocol acquires cell measurement information and first service information related to QoS (quality of service) flow carried by DRB (data packet radio bearer) associated with the PDCP (packet data convergence protocol) entity from a small base station, and logical channel transmission information corresponding to each RLC entity associated with the PDCP entity; acquiring second service information related to the service from the service server; generating configuration recommendation information copied by PDCP according to the cell measurement information, the logic channel transmission information, the first service information and the second service information; and sending the configuration recommendation information of the PDCP duplication to the small base station so that the small base station configures the PDCP duplication according to the configuration recommendation information of the PDCP duplication. The method and the device can realize PDCP duplicate transmission in an indoor industrial Internet scene.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for configuring replication of a packet data convergence protocol.
Background
In PDCP (Packet Data Convergence Protocol ) duplication (duplication) defined in the related art, transmission reliability is improved and latency is reduced by simultaneously transmitting the same PDCP PDU (Protocol Data Unit ) to a plurality of RLC (Radio Link Control ) entities. The RLC entities used typically do not exceed 4.
Among the RLC entities used, a Logical Channel (LCH) corresponding to a primary RLC entity is referred to as a primary Logical Channel, and a Logical Channel corresponding to a secondary RLC entity is referred to as a secondary Logical Channel. The primary logical channel and the secondary logical channel may belong to the same MAC (Media Access Control, medium access control) entity (in a CA (Carrier Aggregation, carrier aggregation) scenario) or to different MAC entities (in a DC (Dual Connectivity) scenario). The MAC entity is responsible for the mapping of logical channels to transport channels.
Disclosure of Invention
The inventors found through research that only the definition of PDCP duplication is given in the related art, but no specific implementation scheme is given.
Accordingly, the present disclosure provides a configuration scheme for packet data convergence protocol duplication to enable PDCP duplication transmission in an indoor industrial internet scenario.
According to a first aspect of an embodiment of the present disclosure, there is provided a method for configuring packet data convergence protocol replication, including: acquiring cell measurement information and first service information related to a quality of service (QoS) flow carried by a data bearer (DRB) associated with a Packet Data Convergence Protocol (PDCP) entity from a small base station, wherein each Radio Link Control (RLC) entity associated with the PDCP entity corresponds to logic channel transmission information; acquiring second service information related to the service from the service server; generating configuration recommendation information of PDCP duplication according to the cell measurement information, the logic channel transmission information, the first service information and the second service information; and sending the configuration recommendation information of the PDCP duplication to the small base station so that the small base station configures the PDCP duplication according to the configuration recommendation information of the PDCP duplication.
In some embodiments, generating the configuration recommendation information for PDCP duplication includes: calculating a transmission reliability value of a logical channel corresponding to each RLC entity according to the logical channel transmission information; calculating a cross-correlation value between any two logical channels according to the logical channel transmission information, the first service information, the second service information and the cell measurement information; and generating first configuration recommendation information under the condition that the cross-correlation value between the first logic channel and the second logic channel is larger than a preset cross-correlation threshold, so that the small base station can perform configuration adjustment on the logic channel with the lower transmission reliability value in the first logic channel and the second logic channel, and the cross-correlation value between the first logic channel and the second logic channel is not larger than the preset cross-correlation threshold.
In some embodiments, generating the configuration recommendation information for PDCP duplication further comprises: calculating a transmission reliability value of the DRB according to the logic channel transmission information; judging whether the transmission reliability value of the DRB meets the service reliability requirement or not; and if the transmission reliability value of the DRB does not meet the service reliability requirement, generating second configuration recommendation information so that the small base station can execute at least one of increasing the number of RLC entities or adjusting the logic channel configuration, and enabling the transmission reliability value of the DRB to meet the service reliability requirement.
In some embodiments, adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a number of configuration permissions.
In some embodiments, generating the configuration recommendation information for PDCP duplication further comprises: under the condition that the user terminal has mobility requirements, determining a moving track of the user terminal according to the user terminal position information, the first service information and the second service information which are included in the cell measurement information; and generating third configuration recommendation information according to the movement track and a cell channel quality measurement report included in the cell measurement information, so that the small base station determines an RLC entity used after the user terminal is switched from the first cell to the second cell.
In some embodiments, configuration recommendation information corresponding to different service types is sent to the small base station, so that the small base station uses the configuration recommendation information corresponding to the different service types to perform offline configuration in the case that communication with the PDCP duplicated configuration device is impossible, or uses the configuration recommendation information corresponding to the different service types as initial configuration information of the PDCP duplication.
According to a second aspect of the embodiments of the present disclosure, there is provided a configuration apparatus for packet data convergence protocol duplication, including: a first obtaining module, configured to obtain cell measurement information, first service information related to a quality of service QoS flow carried by a data bearer DRB associated with a packet data convergence protocol PDCP entity, from a small base station, where the PDCP entity is associated with each radio link control RLC entity corresponding to a logical channel transmission information; a second acquisition module configured to acquire second service information related to the service from the service server; a configuration recommendation information generation module configured to generate PDCP duplicated configuration recommendation information according to the cell measurement information, the logical channel transmission information, the first service information, and the second service information; and the sending module is configured to send the configuration recommendation information of the PDCP duplication to the small base station so that the small base station configures the PDCP duplication according to the configuration recommendation information of the PDCP duplication.
In some embodiments, the configuration recommendation information generating module is configured to calculate a transmission reliability value of a logical channel corresponding to each RLC entity according to the logical channel transmission information, calculate a cross-correlation value between any two logical channels according to the logical channel transmission information, the first service information, the second service information, and the cell measurement information, and generate first configuration recommendation information if the cross-correlation value between the first logical channel and the second logical channel is greater than a preset cross-correlation threshold, so that the small cell performs configuration adjustment on a logical channel having a lower transmission reliability value of the first logical channel and the second logical channel, so that the cross-correlation value between the first logical channel and the second logical channel is not greater than the preset cross-correlation threshold.
In some embodiments, the configuration recommendation information generating module is configured to calculate a transmission reliability value of the DRB according to the logical channel transmission information, determine whether the transmission reliability value of the DRB meets a service reliability requirement, and if the transmission reliability value of the DRB does not meet the service reliability requirement, generate second configuration recommendation information, so that the small cell performs at least one of increasing the RLC entity number or adjusting the logical channel configuration, so that the transmission reliability value of the DRB meets the service reliability requirement.
In some embodiments, adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a number of configuration permissions.
In some embodiments, the configuration recommendation information generating module is configured to determine a movement track of the user terminal according to user terminal location information, the first service information and the second service information included in the cell measurement information, and generate third configuration recommendation information according to the movement track and a cell channel quality measurement report included in the cell measurement information, so that the small base station determines an RLC entity used after the user terminal is handed over from a first cell to a second cell, in case the user terminal has mobility requirements.
In some embodiments, configuration recommendation information corresponding to different service types is sent to the small base station, so that the small base station uses the configuration recommendation information corresponding to the different service types to perform offline configuration in the case that communication with the PDCP duplicated configuration device is impossible, or uses the configuration recommendation information corresponding to the different service types as initial configuration information of the PDCP duplication.
According to a third aspect of the embodiments of the present disclosure, there is provided a configuration apparatus for packet data convergence protocol duplication, including: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments described above based on instructions stored in the memory.
According to a fourth aspect of embodiments of the present disclosure, there is provided a configuration system for packet data convergence protocol replication, comprising: a configuration means for packet data convergence protocol PDCP duplication as in any one of the above embodiments; a small base station configured to provide cell measurement information, first service information related to a quality of service QoS flow carried by a data bearer DRB associated with a packet data convergence protocol PDCP entity, to a configuration device of the PDCP duplication, the PDCP entity being associated with each radio link control RLC entity corresponding to logical channel transmission information; the configuration device is further configured to configure the PDCP duplication according to the configuration recommendation information of the PDCP duplication sent by the configuration device of the PDCP duplication; and a service server configured to provide second service information related to the service to the configuration device copied by the PDCP.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium, wherein the computer readable storage medium stores computer instructions which, when executed by a processor, implement a method as referred to in any of the embodiments above.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
figure 1 is a flow diagram of a method of configuration of PDCP duplication in accordance with one embodiment of the present disclosure;
fig. 2 is a schematic structural view of a configuration apparatus of PDCP duplication according to one embodiment of the present disclosure;
fig. 3 is a schematic structural view of a configuration apparatus of PDCP duplication according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a configuration system of PDCP duplication according to one embodiment of the present disclosure.
It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, and the numerical values set forth in these examples should be construed as merely illustrative, and not limiting unless specifically stated otherwise.
The use of the terms "comprising" or "including" and the like in this disclosure means that elements preceding the term encompass the elements recited after the term, and does not exclude the possibility of also encompassing other elements.
All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
Fig. 1 is a flow diagram of a configuration method of PDCP duplication according to one embodiment of the present disclosure. In some embodiments, the following PDCP duplicate configuration method steps are performed by a PDCP duplicate configuration device.
In step 101, cell measurement information, first service information related to QoS (Quality of Service ) flows carried by DRBs (Data Radio Bearer, data bearers) associated with PDCP entities, and logical channel transmission information corresponding to each RLC entity associated with the PDCP entities are acquired from a small base station.
In some embodiments, the cell measurement information includes cell information, cell load, channel quality measurement reports, user terminal location information, and the like. The first service information includes a time stamp, a service related 5QI (5G QOS Identifier,5G quality of service identifier), etc. The logical channel transmission information includes transmission success (HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat request) ACK (acknowledgement))/failure (HARQ NACK (negative acknowledgement) information, LCP (Logical Channel Prioritization, logical channel priority) restriction information, and the like.
In some embodiments, the small cell is an indoor 5G small cell in an indoor industrial internet scenario.
In step 102, second service information related to the service is acquired from the service server.
In some embodiments, the service server is a MEC (Mobile Edge Computing ) server, home gateway, or other service platform.
In some embodiments, steps 101 and 102 may be performed at predetermined periods.
In step 103, PDCP duplicated configuration recommendation information is generated according to the cell measurement information, the logical channel transmission information, the first service information, and the second service information.
In some embodiments, in step 103, a transmission reliability value of a logical channel corresponding to each RLC entity is calculated according to logical channel transmission information (e.g., transmission success/failure information, etc.). The cross-correlation value between any two logical channels is calculated according to the logical channel transmission information, the first traffic information, the second traffic information, and cell measurement information (e.g., time stamp, transmission success/failure information, channel quality measurement report, etc.). And generating first configuration recommendation information under the condition that the cross-correlation value between the first logic channel and the second logic channel is larger than a preset cross-correlation threshold, so that the small base station can perform configuration adjustment on the logic channel with the lower transmission reliability value in the first logic channel and the second logic channel, and the cross-correlation value between the first logic channel and the second logic channel is not larger than the preset cross-correlation threshold.
For example, if the cross-correlation value Corr [1] [2] between the first logical channel and the second logical channel is greater than the preset cross-correlation threshold, the transmission reliability values of the first logical channel and the second logical channel are further determined. If the transmission reliability value of the first logic channel is smaller than that of the second logic channel, the small base station is used for carrying out configuration adjustment on a cell, a carrier or a configuration license (configured grant) corresponding to the first logic channel so as to enable the cross-correlation value between the first logic channel and the second logic channel to be not larger than a preset cross-correlation threshold.
In some embodiments, in step 103, a transmission reliability value of the DRB is calculated according to the logical channel transmission information (e.g., transmission success/failure information, etc.), and it is determined whether the transmission reliability value of the DRB meets the service reliability requirement. If the transmission reliability value of the DRB does not meet the service reliability requirement, generating second configuration recommendation information so that the small base station can execute at least one of increasing the number of RLC entities or adjusting the logic channel configuration, and enabling the transmission reliability value of the DRB to meet the service reliability requirement.
In some embodiments, adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a number of configuration permissions.
Here, by increasing the number of RLC entities, reliability can be significantly improved when the logical channels are independent of each other. By increasing the priority of the logical channel, the base station can obtain more opportunities to transmit the logical channel data during scheduling, thereby increasing the probability of successful transmission of the service in a period of time, i.e. increasing the reliability. By increasing the number of configuration permissions, more transmission resources can be obtained, so that data transmission can be completed within the range of time delay requirements.
In some embodiments, in step 103, in case the user terminal has mobility requirements, a movement trajectory of the user terminal is determined from the user terminal location information, the first service information and the second service information included in the cell measurement information. And generating third configuration recommendation information according to the movement track and the cell channel quality measurement report included in the cell measurement information so that the small base station determines an RLC entity used after the user terminal is switched from the first cell to the second cell.
For example, the user terminal moves from cell 1 to cell 2 (cell 2 supports 2 carrier aggregation), and the PDCP duplicate transmission of the current user terminal supports 2 RLC entities. Logical channels of RLC entity 1 are restricted for transmission in cell 1, logical channels of RLC entity 2 are restricted for transmission in carrier 1 of cell 2, and logical channels of RLC entity 3 are restricted for transmission in carrier 2 of cell 2. The user terminal uses RLC1 and RLC2 for data transmission in cell 1, and the network adopts a strategy of using RLC2 and RLC3 for transmission according to the movement track and measurement report of the user terminal (i.e., the received signal from cell 1 is reduced and the received signal from cell 2 is increased) during the movement of the user terminal from cell 1 to cell 2.
In some embodiments, corresponding configuration recommendation information is obtained by performing corresponding processing using tools such as artificial intelligence and machine learning.
In step 104, the configuration recommendation information of the PDCP duplication is sent to the small base station, so that the small base station configures the PDCP duplication according to the configuration recommendation information of the PDCP duplication.
In some embodiments, the configuration recommendation information corresponding to the different service types is sent to the small base station, so that the small base station uses the configuration recommendation information corresponding to the different service types to perform offline configuration under the condition that the small base station cannot communicate with the configuration device duplicated by PDCP, or the small base station uses the configuration recommendation information corresponding to the different service types as initial configuration information duplicated by PDCP.
In the PDCP duplication configuration method provided in the above embodiment of the present disclosure, by generating configuration recommendation information by using information acquired from a small base station and a service server, and transmitting the generated configuration recommendation information to the small base station for corresponding configuration of PDCP duplication, processing complexity of the small base station can be reduced, service reliability can be provided, and processing time delay can be reduced.
Fig. 2 is a schematic structural diagram of a configuration apparatus of PDCP duplication according to one embodiment of the present disclosure. As shown in fig. 2, the configuration apparatus for PDCP duplication includes a first acquisition module 21, a second acquisition module 22, a configuration recommendation information generation module 23, and a transmission module 24.
The first acquisition module 21 is configured to acquire cell measurement information, first service information related to QoS flows carried by DRBs associated with PDCP entities, and logical channel transmission information corresponding to each RLC entity associated with the PDCP entities from the small base station.
In some embodiments, the cell measurement information includes cell information, cell load, channel quality measurement reports, user terminal location information, and the like. The first service information includes a time stamp, a 5QI related to the service, etc. Logical channel transmission information includes transmission success/failure information, LCP limitation information, and the like.
In some embodiments, the small cell is an indoor 5G small cell in an indoor industrial internet scenario.
The second acquisition module 22 is configured to acquire second service information related to the service from the service server.
In some embodiments, the service server is a MEC server, home gateway, or other service platform.
The configuration recommendation information generating module 23 is configured to generate PDCP duplicated configuration recommendation information according to the cell measurement information, the logical channel transmission information, the first service information, and the second service information.
In some embodiments, the configuration recommendation information generating module 23 is configured to calculate a transmission reliability value of a logical channel corresponding to each RLC entity according to the logical channel transmission information, and calculate a cross-correlation value between any two logical channels according to the logical channel transmission information, the first traffic information, the second traffic information, and the cell measurement information. And generating first configuration recommendation information under the condition that the cross-correlation value between the first logic channel and the second logic channel is larger than a preset cross-correlation threshold, so that the small base station can perform configuration adjustment on the logic channel with the lower transmission reliability value in the first logic channel and the second logic channel, and the cross-correlation value between the first logic channel and the second logic channel is not larger than the preset cross-correlation threshold.
In some embodiments, the configuration recommendation information generating module 23 is configured to calculate a transmission reliability value of the DRB according to the logical channel transmission information, and determine whether the transmission reliability value of the DRB meets the service reliability requirement. If the transmission reliability value of the DRB does not meet the service reliability requirement, generating second configuration recommendation information so that the small base station can execute at least one of increasing the number of RLC entities or adjusting the logic channel configuration, and enabling the transmission reliability value of the DRB to meet the service reliability requirement.
In some embodiments, adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a number of configuration permissions.
In some embodiments, the configuration recommendation information generating module 23 is configured to determine a movement track of the user terminal according to the user terminal location information, the first service information and the second service information included in the cell measurement information, and generate third configuration recommendation information according to the movement track and a cell channel quality measurement report included in the cell measurement information, so that the small base station determines an RLC entity used after the user terminal is handed over from the first cell to the second cell, in case the user terminal has mobility requirements.
The sending module 24 is configured to send the PDCP duplicate configuration recommendation information to the small base station, so that the small base station configures the PDCP duplicate according to the PDCP duplicate configuration recommendation information.
In some embodiments, the sending module 24 is configured to send the configuration recommendation information corresponding to the different service types to the small base station, so that the small base station uses the configuration recommendation information corresponding to the different service types for offline configuration in the case that the small base station cannot communicate with the configuration device copied by PDCP, or the small base station uses the configuration recommendation information corresponding to the different service types as initial configuration information for PDCP copying.
Fig. 3 is a schematic structural view of a configuration apparatus of PDCP duplication according to another embodiment of the present disclosure. As shown in fig. 3, the configuration means for PDCP copying includes a memory 31 and a processor 32.
The memory 31 is used for storing instructions. The processor 32 is coupled to the memory 31. The processor 32 is configured to perform a method as referred to in any of the embodiments of fig. 1 based on the instructions stored by the memory.
As shown in fig. 3, the configuration apparatus for PDCP copying further includes a communication interface 33 for information interaction with other devices. Meanwhile, the configuration device further comprises a bus 34, and the processor 32, the communication interface 33 and the memory 31 perform communication with each other through the bus 34.
The Memory 31 may include a high-speed RAM (Random Access Memory ) and may further include a Non-Volatile Memory (NVM). Such as at least one disk storage. The memory 31 may also be a memory array. The memory 31 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 32 may be a central processing unit, or may be an ASIC (Application Specific Integrated Circuit ), or one or more integrated circuits configured to implement embodiments of the present disclosure.
The present disclosure also provides a computer-readable storage medium. The computer readable storage medium stores computer instructions that, when executed by a processor, implement a method as referred to in any of the embodiments of fig. 1.
Fig. 4 is a schematic structural diagram of a configuration system of PDCP duplication according to one embodiment of the present disclosure. As shown in fig. 4, the configuration system for PDCP duplication includes a wireless intelligent controller (Radio Intelligent Controller, abbreviated as RIC) 41, a small base station 42, and a service server 43.RIC 41 is a configuration means for PDCP duplication as referred to in either of the embodiments of fig. 2 or fig. 3.
In some embodiments, RIC 41 communicates with small base station 42 over an E2 interface and RIC 41 communicates with traffic server 43 over a B1 interface.
The small base station 42 is configured to provide cell measurement information, first service information related to QoS flows carried by DRBs associated with PDCP entities, logical channel transmission information corresponding to each RLC entity associated with the PDCP entities, to the RIC 41; and is further configured to configure PDCP duplicates according to the configuration recommendation information of PDCP duplicates sent by the RIC 41.
In some embodiments, the small cell 42 is an indoor 5G small cell in an indoor industrial internet scenario.
The service server 43 is configured to provide the RIC 41 with second service information related to the service.
In some embodiments, the service server 43 is a MEC server, home gateway, or other service platform.
In some embodiments, the small base station 42 performs configuration adjustment on a logical channel with a lower transmission reliability value among the specified first logical channel and second logical channel according to the first configuration recommendation information sent by the RIC 41, so that a cross-correlation value between the first logical channel and the second logical channel is not greater than a preset cross-correlation threshold.
In some embodiments, the small cell 42 performs at least one of increasing the number of RLC entities or adjusting the logical channel configuration such that the transmission reliability value of the DRB meets the service reliability requirement according to the second configuration recommendation information sent by the RIC 41. In some embodiments, adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a number of configuration permissions.
In some embodiments, the small cell 42 determines the RLC entity used after the user terminal has handed over from the first cell to the second cell based on the third configuration recommendation information sent by the RIC 41.
In some embodiments, the small base station 42 uses the configuration recommendation information corresponding to the different service types to perform offline configuration according to the configuration recommendation information corresponding to the different service types sent by the RIC 41, or uses the configuration recommendation information corresponding to the different service types as initial configuration information for PDCP duplication by the small base station 42.
In some embodiments, the functional modules described above may be implemented as general-purpose processors, programmable logic controllers (Programmable Logic Controller, abbreviated as PLCs), digital signal processors (Digital Signal Processor, abbreviated as DSPs), application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASICs), field programmable gate arrays (Field-Programmable Gate Array, abbreviated as FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described herein.
By implementing the scheme disclosed by the invention, the processing complexity of the small base station can be effectively reduced, the service reliability is provided, the system time delay is reduced, and the QoS guarantee of the service is improved. Furthermore, the above-described aspects of the present disclosure are applicable to O-RAN (Open Radio Access Network ) architecture. For the O-RAN architecture, the small base station and the RIC communicate through an E2 interface, and a Near-Real time (Near Real time) RIC and a Non-Real time (Non Real time) RIC deployment mode comprising an A1 interface can be supported. Providing a new idea for optimizing the network of the operator.
Thus, embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (15)
1. A method of configuring a packet data convergence protocol replication, comprising:
acquiring cell measurement information and first service information related to a quality of service (QoS) flow carried by a data bearer (DRB) associated with a Packet Data Convergence Protocol (PDCP) entity from a small base station, wherein each Radio Link Control (RLC) entity associated with the PDCP entity corresponds to logic channel transmission information;
acquiring second service information related to the service from the service server;
generating configuration recommendation information of PDCP duplication according to the cell measurement information, the logic channel transmission information, the first service information and the second service information;
and sending the configuration recommendation information of the PDCP duplication to the small base station so that the small base station configures the PDCP duplication according to the configuration recommendation information of the PDCP duplication.
2. The method of claim 1, wherein generating configuration recommendation information for PDCP duplication comprises:
calculating a transmission reliability value of a logical channel corresponding to each RLC entity according to the logical channel transmission information;
calculating a cross-correlation value between any two logical channels according to the logical channel transmission information, the first service information, the second service information and the cell measurement information;
and generating first configuration recommendation information under the condition that the cross-correlation value between the first logic channel and the second logic channel is larger than a preset cross-correlation threshold, so that the small base station can perform configuration adjustment on the logic channel with the lower transmission reliability value in the first logic channel and the second logic channel, and the cross-correlation value between the first logic channel and the second logic channel is not larger than the preset cross-correlation threshold.
3. The method of claim 1, wherein generating configuration recommendation information for PDCP duplication further comprises:
calculating a transmission reliability value of the DRB according to the logic channel transmission information;
judging whether the transmission reliability value of the DRB meets the service reliability requirement or not;
and if the transmission reliability value of the DRB does not meet the service reliability requirement, generating second configuration recommendation information so that the small base station can execute at least one of increasing the number of RLC entities or adjusting the logic channel configuration, and enabling the transmission reliability value of the DRB to meet the service reliability requirement.
4. The method of claim 3, wherein,
adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a configuration grant number.
5. The method of claim 3, wherein generating configuration recommendation information for PDCP duplication further comprises:
under the condition that the user terminal has mobility requirements, determining a moving track of the user terminal according to the user terminal position information, the first service information and the second service information which are included in the cell measurement information;
and generating third configuration recommendation information according to the movement track and a cell channel quality measurement report included in the cell measurement information, so that the small base station determines an RLC entity used after the user terminal is switched from the first cell to the second cell.
6. The method of any of claims 1-5, further comprising:
and sending the configuration recommendation information corresponding to different service types to the small base station, so that the small base station uses the configuration recommendation information corresponding to the different service types to perform offline configuration under the condition that the small base station cannot communicate with the configuration device copied by the PDCP, or uses the configuration recommendation information corresponding to the different service types as initial configuration information copied by the PDCP.
7. A configuration apparatus for packet data convergence protocol duplication, comprising:
a first obtaining module, configured to obtain cell measurement information, first service information related to a quality of service QoS flow carried by a data bearer DRB associated with a packet data convergence protocol PDCP entity, from a small base station, where the PDCP entity is associated with each radio link control RLC entity corresponding to a logical channel transmission information;
a second acquisition module configured to acquire second service information related to the service from the service server;
a configuration recommendation information generation module configured to generate PDCP duplicated configuration recommendation information according to the cell measurement information, the logical channel transmission information, the first service information, and the second service information;
and the sending module is configured to send the configuration recommendation information of the PDCP duplication to the small base station so that the small base station configures the PDCP duplication according to the configuration recommendation information of the PDCP duplication.
8. The apparatus of claim 7, wherein,
the configuration recommendation information generation module is configured to calculate a transmission reliability value of a logic channel corresponding to each RLC entity according to the logic channel transmission information, calculate a cross-correlation value between any two logic channels according to the logic channel transmission information, the first service information, the second service information and the cell measurement information, and generate first configuration recommendation information when the cross-correlation value between the first logic channel and the second logic channel is greater than a preset cross-correlation threshold, so that the small base station performs configuration adjustment on a logic channel with a lower transmission reliability value in the first logic channel and the second logic channel, and the cross-correlation value between the first logic channel and the second logic channel is not greater than the preset cross-correlation threshold.
9. The apparatus of claim 8, wherein,
the configuration recommendation information generation module is configured to calculate a transmission reliability value of the DRB according to the logic channel transmission information, determine whether the transmission reliability value of the DRB meets the service reliability requirement, and if the transmission reliability value of the DRB does not meet the service reliability requirement, generate second configuration recommendation information so that the small cell executes at least one of increasing the number of RLC entities or adjusting the logic channel configuration, so that the transmission reliability value of the DRB meets the service reliability requirement.
10. The apparatus of claim 9, wherein,
adjusting the logical channel configuration includes at least one of increasing a logical channel priority or increasing a configuration grant number.
11. The apparatus of claim 9, wherein,
the configuration recommendation information generation module is configured to determine a movement track of the user terminal according to user terminal position information, the first service information and the second service information included in the cell measurement information, and generate third configuration recommendation information according to the movement track and a cell channel quality measurement report included in the cell measurement information, so that the small base station determines an RLC entity used after the user terminal is switched from a first cell to a second cell.
12. The device according to any one of claims 7-11, wherein,
the sending device is further configured to send configuration recommendation information corresponding to different service types to the small base station, so that the small base station uses the configuration recommendation information corresponding to the different service types to perform offline configuration under the condition that communication with the configuration device copied by the PDCP is impossible, or uses the configuration recommendation information corresponding to the different service types as initial configuration information copied by the PDCP.
13. A configuration apparatus for packet data convergence protocol duplication, comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-6 based on instructions stored by the memory.
14. A configuration system for packet data convergence protocol replication, comprising:
configuration means for packet data convergence protocol replication according to any of claims 7-13;
a small base station configured to provide cell measurement information, first service information related to a quality of service QoS flow carried by a data bearer DRB associated with a packet data convergence protocol PDCP entity, to a configuration device duplicated by the PDCP entity, the PDCP entity being associated with each radio link control RLC entity corresponding to a logical channel transmission information; the configuration device is further configured to configure the PDCP duplication according to the configuration recommendation information of the PDCP duplication sent by the configuration device of the PDCP duplication;
and a service server configured to provide second service information related to the service to the configuration device copied by the PDCP.
15. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1-6.
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