CN111654884B - Data processing method and related equipment - Google Patents
Data processing method and related equipment Download PDFInfo
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- CN111654884B CN111654884B CN202010445921.4A CN202010445921A CN111654884B CN 111654884 B CN111654884 B CN 111654884B CN 202010445921 A CN202010445921 A CN 202010445921A CN 111654884 B CN111654884 B CN 111654884B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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Abstract
The embodiment of the invention provides a data processing method and related equipment, wherein the method comprises the following steps: if the Cyclic Redundancy Check (CRC) of the transport block is wrong, determining a target identifier, wherein the target identifier is the transport block identifier of the transport block with the Cyclic Redundancy Check (CRC) error; and triggering the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier according to the target identifier. The embodiment of the invention can delete the related data of the wrong transmission block in time.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data processing method and related devices.
Background
With the development of communication technology, a protocol stack may analyze L2 PDUs (protocol data units) on a single CB (code block) based on a data stream from a physical layer, and when CRC (Cyclic Redundancy Check ) of the CB is verified successfully, the PDUs may be submitted to a higher layer, for example, in a MAC (Media Access Control, medium access control) protocol layer of NR, a functional entity of the MAC protocol layer performs CRC check on each CB first, and the verification is successful, analyzes the CB and uploads to a next protocol layer, without waiting for the entire TB (Transport block) to be received for processing, so that the processing of the data packet may be accelerated.
However, after transmitting several CBs, there may be a case that the CRC of the TB fails, which results in that the PDUs parsed by the CBs are all unavailable, and the PDU data is finally found and discarded by the application layer, so that the unavailable PDUs cannot be processed in time, and the software and hardware resources such as the buffer are wasted.
Disclosure of Invention
The embodiment of the invention provides a data processing method and related equipment, which can delete related data of a transmission block in time and save storage resources.
A first aspect of the embodiment of the present invention provides a data processing method, including:
if the Cyclic Redundancy Check (CRC) of the transport block is wrong, determining a target identifier, wherein the target identifier is the transport block identifier of the transport block with the Cyclic Redundancy Check (CRC) error;
and triggering the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier according to the target identifier.
A second aspect of an embodiment of the present invention provides a data processing method, including:
determining data to be analyzed, wherein the data to be analyzed comprises a protocol data unit PDU or a service data unit SDU, and setting a transmission block identifier of a transmission block to which the data to be analyzed belongs for the data to be analyzed;
And if the trigger instruction is determined to exist, deleting the data to be analyzed or deleting the cache data obtained according to the data to be analyzed according to the trigger instruction, wherein the trigger instruction carries a target identifier, and the target identifier is a transmission block identifier of a transmission block with Cyclic Redundancy Check (CRC) error.
A third aspect of an embodiment of the present invention provides a data processing apparatus, including:
a determining unit, configured to determine a target identifier if a cyclic redundancy check CRC error occurs in a transport block, where the target identifier is a transport block identifier of the transport block in which the cyclic redundancy check CRC error occurs;
and the processing unit is used for triggering the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier according to the target identifier.
A fourth aspect of an embodiment of the present invention provides a data processing apparatus, including:
the determining unit is used for determining data to be analyzed, wherein the data to be analyzed comprises a protocol data unit PDU or a service data unit SDU, and a transmission block identifier of a transmission block to which the data to be analyzed belongs is set for the data to be analyzed;
and the processing unit is used for deleting the data to be analyzed or deleting the cache data obtained according to the data to be analyzed according to the trigger instruction if the trigger instruction is determined, wherein the trigger instruction carries a target identifier, and the target identifier is a transmission block identifier of a transmission block with Cyclic Redundancy Check (CRC) error.
A fifth aspect of an embodiment of the present invention provides an intelligent terminal, including: a processor and a memory, the processor and the memory being interconnected, wherein the memory is adapted to store a computer program, the computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method according to the first or second aspect.
A sixth aspect of the embodiments of the present invention provides a computer readable storage medium, characterized in that the computer readable storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the method according to the first aspect or the method according to the second aspect.
In the embodiment of the invention, if the transmission block is in Cyclic Redundancy Check (CRC) error, the target identifier is determined, and the target identifier is the transmission block identifier of the transmission block with the CRC error, so that the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier is triggered according to the target identifier at the first time.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a data processing method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a relationship between a transport block and a code block according to an embodiment of the present invention;
FIG. 3a is a schematic diagram of a specific data processing flow of a data processing method according to an embodiment of the present invention;
FIG. 3b is a schematic diagram of another specific data processing flow of a data processing method according to an embodiment of the present invention;
FIG. 3c is a schematic diagram of another specific data processing flow of a data processing method according to an embodiment of the present invention;
FIG. 4 is a flowchart of another data processing method according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a data processing apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another data processing apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an intelligent terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the mobile communication process, whether LTE (Long Term Evolution ) or NR (New Radio, new air interface), the processing of communication data is performed through a plurality of protocol layers, for example, NR includes a 5-layer protocol layer. In communication, for a code block of a received TB (Transport block), the code block of the TB may be processed in advance without obtaining a TB CRC, and the MAC protocol layer may parse the code block to obtain code block data, i.e., may transmit the code block data to the previous protocol layer. Each protocol layer processes the received data protocol unit PDU and transmits it to the upper layer until it is transmitted to the highest layer.
After transmitting to the highest layer, the embodiment of the present application buffers all associated data (for example, a data protocol unit PDU) of a certain transport block to the highest layer, and adds a transport block identifier of the transport block to all associated data of the transport block, waits for an analysis result of the MAC layer functional entity on the TB CRC, and then processes part or all associated data of the transport block according to the analysis result.
Taking an example of a layer 5 protocol included in NR, in which a MAC layer, an RLC layer, a PDCP layer, an SDAP layer, and an L3/L4 are included, in order to increase a processing speed of a protocol stack, in case that a Transport block (Transport block) cyclic redundancy check CRC state is not obtained, a data packet is first processed, for example, an RLC layer (Radio Link Control, radio link layer control protocol) functional entity may first perform segmentation, rearrangement, and sequencing; if the PDU is a complete PDCP (Packet Data Convergence Protocol ) PDU, the PDCP layer functional entity can further perform decryption, integrity protection and the like of the data packet, but the PDU processed at the moment is not submitted to an AP (Access Point), but is cached in a buffer zone of the L3/L4 functional entity, and waits for the analysis result of the CRC of the Transport block by the MAC layer functional entity.
If Transport block CRC is wrong, all L2 (L2 layers belonging to the Transport block include MAC (medium access control) layer, RLC (radio link control) layer, PDCP (packet data convergence protocol) layer, SDAP (service data adapter) layer) data protocol unit PDU or service data unit SDU need to be discarded, while the L3/L4 functional entity discards the buffered data protocol unit PDU or service data unit SDU as well. And only delivers the data of the L3/L4 buffered transport block to the AP if Transport block CRC is successful.
It can be understood that in the process of executing the protocol stack, the processor realizes respective functions by different protocol layer functional entities for different protocol layers, for example, the MAC layer corresponds to the MAC layer functional entity, the RLC layer corresponds to the RLC layer functional entity, the PDCP layer corresponds to the PDCP layer functional entity, the SDAP layer corresponds to the SDAP layer functional entity, and the L3/L4 corresponds to the L3/L4 functional entity.
Meanwhile, the invention also provides a specific discarding processing mode of the related data of a certain transmission block when the transmission block is in CRC error, wherein the transmission block in CRC error is called a target transmission block, and the transmission block identification of the transmission block in CRC error is called a target identification.
In one possible embodiment, the discarding process includes: identifying all cached related data belonging to the target transport block on the whole protocol stack path, and discarding the data, including the PDU/SDU cached in L2 and the PDU/SDU cached in L3/L4, adding an item mark to mark when generating description information for the data associated with the target transport block in order to identify the data associated with the target transport block, if the CRC of the transport block is wrong, triggering the target protocol layer functional entity by the MAC layer functional entity by using the trigger instruction to determine the data associated with the target transport block according to the target mark, i.e. the target protocol layer functional entity searches the data associated with the target transport block in the cache according to the target mark in the trigger instruction, and deleting the searched related data associated with the target transport block, for example, deleting the code block data associated with the transport block in the MAC layer, deleting the PDU or SDU associated with the transport block in the RLC layer, deleting the PDU or SDU associated with the transport block in the PDCP layer, and the like.
In a possible embodiment, the discarding processing manner may further include: if the transmission block CRC is wrong, discarding the data which is cached by the L3/L4 functional entity (in NR, the last layer is L3/L4) and is associated with the target transmission block, and processing the data which is associated with the target transmission block normally by other protocol layers in the whole protocol stack path. When the L3/L4 functional entity caches the data associated with the target transmission block, classifying the data associated with the target transmission block according to the target identifier, putting the data into a corresponding Buffer, and when the L3/L4 functional entity discards the data associated with the target transmission block, searching the cached data associated with the target transmission block in the corresponding Buffer according to the target identifier and discarding the data.
Referring to fig. 1, a flow chart of a data processing method according to an embodiment of the present invention is provided, where the data processing method may be implemented by a processor, and more specifically, a physical layer functional entity or a MAC layer functional entity implemented by the processor is implemented. The data processing method described in the present embodiment includes the steps of:
101. if the transmission block is in Cyclic Redundancy Check (CRC) error, determining a target identification, wherein the target identification is the transmission block identification of the transmission block in which the Cyclic Redundancy Check (CRC) error occurs.
Wherein a transport block is made up of a plurality of code blocks, each having a corresponding cyclic redundancy check, CRC, field, as schematically shown in fig. 2, behind which the transport block itself can be seen, based on which it can be determined whether the transport block CRC check is correct or erroneous. Meanwhile, the transmission block consists of a code block 0, a code block 1, a code block 2 and a code block 3, and each code block has a corresponding code block CRC field.
Specifically, if the transport block has a cyclic redundancy check error, the transport block identifier of the transport block having the cyclic redundancy check CRC error may be determined, and a target identifier may be obtained, where the target identifier may indicate the transport block for which the cyclic redundancy check CRC error has occurred.
In a possible embodiment, before determining the target identifier, the received code block may be parsed to obtain code block data, and data associated with the transport block identifier is obtained according to the code block data and the transport block identifier to which the code block data belongs, and the data associated with the transport block identifier is transmitted to the target protocol layer functional entity. That is, if the code block CRC is correct, the physical layer functional entity or the MAC layer functional entity parses the code block to obtain code block data, obtains a transport block identifier of a transport block to which the code block data belongs, obtains data associated with the transport block identifier according to the code block data and the transport block identifier, and transmits the data associated with the transport block identifier to the target protocol layer. The data associated with the transport block identification comprises protocol data units PDU and service data units SDU.
In a possible embodiment, the transmission data for transmitting to the functional entity of the upper protocol layer is obtained according to the code block data, and the transmission block identifier of the transmission block to which the code block data belongs is added in the description information generated for the transmission data, so as to obtain the data associated with the transmission block identifier. The description information is at least used for describing a protocol layer where the transmission data is located, for example, the description information may include a descriptor, an identifier describing which protocol layer the transmission data is located in, and the like, and adding the transmission block identifier of the transmission block to which the code block data belongs to the transmission data to obtain the data associated with the transmission block identifier, so that the data associated with the transmission block identifier can be quickly identified in the following step. While the transport block identification may refer to a number or a string of characters, etc.
For example, if the code block CRC is correct, the MAC layer functional entity parses the code block to obtain code block data, and according to the code block data, an SDU (transmission data) transmitted to the RLC layer functional entity can be obtained, and when the MAC layer functional entity generates a descriptor for the SDU, a transport block identification 1 is added, so as to obtain an SDU associated with the transport block identification 1 and upload the SDU associated with the transport block identification 1 to the RLC layer functional entity.
102. And triggering the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier according to the target identifier.
The target protocol layer functional entity may refer to one or more of multiple protocol layer functional entities that parse data associated with the target identifier. The target protocol layer functional entity may be a physical layer functional entity, a MAC layer functional entity, an RLC layer functional entity, a PDCP layer functional entity, an L3/L4 functional entity, etc.
It should be noted that, the L3/L4 functional entity only represents the highest layer functional entity of the entire protocol stack, and the target protocol layer functional entity also includes not only the above listed protocol layer functional entity, for example, may also be an SDAP layer functional entity, an IP/TCP layer functional entity, and the like.
Wherein the data associated with the destination identification may be a protocol data unit PDU or a service data unit SDU. The deletion processing mainly deletes the relevant data of the transmission block identifier (i.e. the target identifier) of the transmission block with the cyclic redundancy check error, which is cached by the functional entity of the target protocol layer. When the CRC of the transmission block is wrong, a triggering instruction can be utilized, the triggering instruction carries a target identifier, the deleting processing of the data which is cached in the target protocol layer functional entity and is associated with the target identifier is triggered, the target protocol layer functional entity is triggered to determine the data which is associated with the target identifier, and the data which is associated with the target identifier is deleted.
The data processing method according to the embodiment of the present invention will be described in detail with reference to fig. 3a, 3b and 3 c.
In a possible embodiment, the triggering instruction is used to trigger the deletion processing of the cached data associated with the target identifier by at least one target protocol layer functional entity, where the triggering instruction carries the target identifier, and the triggering instruction may be used to trigger the deletion processing of the cached data associated with the target identifier by a single target protocol layer functional entity, or trigger the deletion processing of the cached data associated with the target identifier by multiple target protocol layer functional entities.
Referring to fig. 3a, based on fig. 2, the transport block includes a plurality of code blocks (e.g., code block 0, code block 1, code block 2), after the MAC layer functional entity receives the plurality of code blocks transmitted by the physical layer functional entity, if the plurality of code blocks CRC are correct, the MAC layer functional entity parses the plurality of code blocks to obtain a corresponding plurality of MAC SDUs, e.g., if the code block 0CRC and the code block 1CRC are correct, the MAC layer functional entity may parse the code block 0 to obtain the transport data MAC SDU0 transmitted to the next protocol layer functional entity, and add the destination identifier when generating a descriptor for the MAC SDU0, to obtain the data (MAC SDU 0) associated with the destination identifier, and then transmit the data (MAC SDU 1) associated with the destination identifier to the destination protocol layer functional entity (RLC layer functional entity), and then the MAC layer functional entity obtains the MAC SDU1 according to the above operations, and then performs the same processing on the MAC SDU1 to transmit the data (MAC SDU 1) associated with the destination identifier to the destination protocol layer functional entity (RLC layer functional entity).
The RLC layer functional entity receives the data associated with the target identifier sent by the MAC layer functional entity, and performs buffering processing on the received data associated with the target identifier, in fig. 3a, the RLC layer functional entity generates a descriptor for the data associated with the target identifier, adds the target identifier in the generated descriptor, and obtains an RLC PDU, where the data associated with the target identifier buffered by the RLC layer functional entity includes the RLC PDU or the MAC SDU. And then transmitting data (RLC PDU) associated with the target identifier to a PDCP layer functional entity, wherein the PDCP layer functional entity generates a descriptor for the data associated with the target identifier, adds the target identifier to the generated descriptor to obtain the PDCP PDU, transmits the PDCP PDU to an L3/L4 functional entity and temporarily caches the PDCP PDU in the last layer L3/L4, if the CRC of the transmission block is wrong, the MAC layer functional entity triggers each protocol layer (a plurality of target protocol layers, such as the MAC layer functional entity, the RLC layer functional entity, the PDCP functional entity and the L3/L4 functional entity in figure 3 a) by utilizing a triggering instruction to determine the cached data associated with the target identifier (namely the transmission block identifier of the transmission block with CRC error), and then each protocol layer functional entity deletes the data associated with the target identifier.
In a possible embodiment, the data associated with the target identifier is cached in the corresponding buffer area by the target protocol layer functional entity according to the target identifier, and the trigger instruction is used for triggering the target protocol layer functional entity to determine the buffer area associated with the target identifier according to the target identifier carried in the trigger instruction so as to delete the data cached in the buffer area. The target protocol layer function is the highest layer function entity in a plurality of protocol layer function entities which analyze the data associated with the target identifier, the data associated with the target identifier is firstly cached in a buffer area of the highest layer function entity, if a transmission block CRC is wrong, the highest layer function entity is triggered by a trigger instruction to determine the data associated with the target identifier, the trigger instruction carries the target identifier, the highest layer function entity finds the corresponding buffer area through the target identifier and deletes the data in the buffer area, and therefore the data associated with the target identifier can be completely deleted.
Referring to fig. 3b, based on fig. 2, the transport block includes a plurality of code blocks (e.g., code block 0, code block 1, and code block 2), after the MAC layer functional entity receives the plurality of code blocks transmitted by the physical layer functional entity, if the plurality of code blocks CRC are correct, the MAC layer functional entity parses the plurality of code blocks to obtain a corresponding plurality of MAC SDUs, e.g., if the code block 0CRC and the code block 1CRC are correct, the MAC layer functional entity may parse the code block 0 to obtain a transport data MAC SDU0 transmitted to the next protocol layer functional entity, and add a destination identifier when generating a descriptor for the MAC SDU0 to obtain data (MAC SDU 0) associated with the destination identifier, and then transmit the data (MAC SDU 1) associated with the destination identifier to the destination protocol layer functional entity (RLC layer functional entity), and then the MAC layer functional entity obtains MAC SDU1 according to the above operations, and then performs the same processing on the MAC SDU1 to transmit the data (MAC SDU 1) associated with the destination identifier to the destination protocol layer functional entity (RLC layer functional entity).
The RLC layer functional entity receives the data associated with the target identifier sent by the MAC layer functional entity, and performs buffering processing on the received data associated with the target identifier, in fig. 3b, the RLC layer functional entity generates a descriptor for the data associated with the target identifier, adds the target identifier in the generated descriptor, and obtains an RLC PDU, where the data associated with the target identifier buffered by the RLC functional entity includes the RLC PDU or the MAC SDU. And then transmitting data (RLC PDU) associated with the target identifier to a PDCP layer functional entity, wherein the PDCP layer functional entity generates a descriptor for the data associated with the target identifier, adds the target identifier into the generated descriptor to obtain the PDCP PDU, transmits the PDCP PDU to an L3/L4 functional entity, temporarily buffers the PDCP PDU in the last layer L3/L4, determines the target identifier (namely, the transmission block identifier of the transmission block with CRC error) if the transmission block is in CRC error, triggers the L3/L4 functional entity by utilizing a trigger instruction, determines the data associated with the target identifier according to the target identifier carried in the trigger instruction, and finally deletes the data buffered in the searched buffer area by the L3/L4 functional entity.
Since the trigger instruction is used to trigger the target protocol layer functional entity to determine the data associated with the target identifier, the protocol layer functional entity that does not receive the trigger instruction will normally process the data associated with the target identifier, for example, just as in the RLC functional entity and PDCP functional entity in fig. 3b will process the data associated with the target identifier, that is, generate description information for the data associated with the target identifier, then add the target identifier in the description information, and perform RLC decapsulation and so on for the data associated with the target identifier.
It should be noted that, fig. 3a and fig. 3b are examples of the transport block in which a CRC error occurs, that is, the target identifier is added to the data associated with the transport block transmitted by each protocol layer.
In a possible embodiment, if the CRC of the transport block is correct, the indication information is used to indicate the target protocol layer functional entity to transmit data associated with the transport block identifier of the transport block with the correct CRC to the wireless access point, if the CRC of the transport block is correct, the transport block identifier of the transport block with the correct CRC is determined, the transport block identifier of the transport block with the correct CRC is carried by the indication information, and then the data associated with the transport block identifier is transmitted to the wireless access point according to the transport block identifier, where the target protocol layer functional entity may be the highest layer functional entity among the multiple protocol layer functional entities that perform parsing processing on the data associated with the transport block identifier of the transport block with the correct CRC.
As shown in fig. 3c, based on fig. 2, the transport block includes a plurality of code blocks (e.g., code block 0, code block 1, code block 2), after the MAC layer functional entity receives the plurality of code blocks transmitted by the physical layer functional entity, if the plurality of code blocks CRC are correct, the MAC layer functional entity parses the plurality of code blocks to obtain a corresponding plurality of MAC SDUs, e.g., if the code block 0CRC and the code block 1CRC are correct, the MAC layer functional entity may parse the code block 0 to obtain a transport data MAC SDU0 transmitted to the next protocol layer functional entity, and add a transport block identifier of the transport block when generating a descriptor for the MAC SDU0 to obtain data (MAC SDU 0) associated with the transport block identifier, and then transmit the data (MAC SDU 1) associated with the transport block identifier to the target protocol layer functional entity (RLC layer functional entity), and then the MAC layer functional entity obtains MAC SDU1 according to the above operations, and then performs the same processing on the MAC SDU1 to transmit the data (MAC SDU 1) associated with the transport block identifier to the target protocol layer functional entity (RLC layer functional entity).
The RLC layer functional entity receives the data associated with the transport block identifier sent by the MAC layer functional entity, and performs buffer processing on the received data associated with the transport block identifier, in fig. 3c, the RLC layer functional entity generates a descriptor for the data associated with the transport block identifier, adds the transport block identifier in the generated descriptor, and obtains an RLC PDU, where the data associated with the transport block identifier buffered by the RLC functional entity includes an RLC PDU or a MAC SDU. And then transmitting data (RLC PDU) associated with the transport block identifier to the PDCP layer functional entity, then the PDCP layer functional entity generates a descriptor for the data associated with the transport block identifier, adds the transport block identifier in the generated descriptor to obtain the PDCP PDU, and transmits the PDCP PDU to the L3/L4 functional entity, wherein the data associated with the transport block identifier is cached in a buffer packet in the L3/L4 functional entity, if the cyclic redundancy check CRC of the transport block is correct, the L3/L4 functional entity is indicated to transmit the data associated with the transport block identifier to a wireless access point by using indication information, and the transport block identifier is the transport block identifier of the transport block with the correct cyclic redundancy check CRC of the transport block, and then the L3/L4 functional entity transmits the data associated with the transport block identifier to the wireless access point.
It should be noted that, in fig. 3c, a transport block with a successful CRC is illustrated as an example, that is, the transport block identifier added in each protocol layer is the transport block identifier of the transport block with a successful CRC.
The highest layer functional entity of the plurality of protocol layer functional entities that analyze the data associated with the transport block identifier of the transport block having the correct CRC may be the same as or different from the highest layer functional entity of the plurality of protocol layer functional entities that analyze the data associated with the target identifier.
In the embodiment of the invention, if the transmission block is in Cyclic Redundancy Check (CRC) error, the target identifier is determined, the target identifier is the transmission block identifier with the CRC error, then the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier is triggered according to the target identifier, so that the deletion processing of the related data of the transmission block with the error can be performed more timely, and the storage resource is saved.
Fig. 4 is a schematic flow chart of a data processing method according to an embodiment of the invention. The data processing method is applied to a processor, and more specifically, is implemented by a target protocol functional entity implemented by the processor, and the data processing method described in the embodiment includes:
401. And determining the data to be analyzed.
The data to be analyzed comprises a protocol data unit PDU or a service data unit SDU, and the processor sets a transmission block identifier of a transmission block to which the data to be analyzed belongs for the data to be analyzed; the data to be resolved refers to data processed by a protocol of a next layer of the target protocol layer function, for example, in fig. 3a, the PDCP layer functional entity receives data sent by the RLC layer functional entity, where the data is the data to be resolved.
In a possible embodiment, after the target protocol layer functional entity determines the data to be parsed, after the data to be parsed is parsed successfully, when description information is generated for the data obtained by parsing successfully, the transport block identifier is added to the generated description information. The transport block identifier is the transport block identifier of the data to be parsed, so that the data associated with the transport block identifier can be conveniently searched for later.
In a possible embodiment, the target protocol layer functional entity includes a highest layer functional entity among a plurality of protocol layer functional entities for processing data to be parsed, and after the data to be parsed is parsed successfully, the target protocol layer functional entity obtains a transport block identifier of a transport block to which the data to be parsed belongs, and caches the cached data obtained by parsing and including description information of the transport block identifier in a corresponding buffer area according to the transport block identifier. In general, the highest layer functional entity (target protocol layer functional entity) has a plurality of buffers, and the buffer data obtained by parsing can be classified according to the transport block identifier and then buffered in the corresponding buffers, for example, the transport block identifier is "01", and then the highest layer functional entity buffers the buffer data obtained by parsing and including the descriptor of the transport block identifier in buffer1 according to "01".
402. And if the trigger instruction is determined to exist, deleting the data to be analyzed or deleting the cache data obtained according to the data to be analyzed according to the trigger instruction, wherein the trigger instruction carries a target identifier, and the target identifier is a transmission block identifier of a transmission block with Cyclic Redundancy Check (CRC) error.
The buffered data is obtained by analyzing the data to be processed, that is, the data associated with the transport block identifier may be a protocol data unit PDU or a service data unit SDU.
And deleting the data to be analyzed corresponding to the target mark according to the target mark in the trigger instruction or deleting the cache data obtained according to the data to be analyzed when the trigger instruction carrying the target mark is determined. I.e. the data associated with the transport block identity is deleted from the transport block identity of the transport block where the cyclic redundancy check CRC error occurred. When the trigger instruction is received, the data to be analyzed may not be analyzed yet, the data to be analyzed is deleted directly, or the buffer data obtained by analyzing the data to be analyzed is deleted directly.
In a possible embodiment, the trigger instruction carries a target identifier, where the target identifier is a transport block identifier of a transport block where a CRC error occurs, and the trigger instruction is configured to trigger a plurality of target protocol layer functional entities to determine data to be parsed and cache data obtained according to the data to be parsed according to the target identifier, and delete the data to be parsed or delete the cache data obtained according to the data to be parsed.
For example, in fig. 3a, the trigger instruction carries a target identifier, where the trigger instruction may trigger the RLC layer functional entity, the PDCP layer functional entity, and the L3/L4 functional entity to determine data to be parsed and cache data obtained according to the data to be parsed according to the target identifier, and if the RLC layer functional entity, the PDCP layer functional entity, and the L3/L4 functional entity determine that the trigger instruction is present, each protocol layer functional entity deletes the data to be parsed and the cache data obtained according to the data to be parsed.
In a possible embodiment, the target protocol layer functional entity includes a highest layer functional entity among a plurality of protocol layer functional entities for analyzing and processing data to be analyzed, and the trigger instruction is used for instructing the target protocol layer functional entity to find out a buffer area corresponding to the data to be analyzed and the buffer data obtained according to the data to be analyzed according to the target identifier and delete the data in the buffer area, if the target protocol layer functional entity determines that the trigger instruction carrying the target identifier exists, determining the data to be analyzed according to the target identifier and the buffer area corresponding to the buffer data obtained according to the data to be analyzed and delete the data in the buffer area.
For example, as shown in fig. 3b, the trigger instruction carries a target identifier, the trigger instruction triggers the L3/L4 layer functional entity to determine, according to the target identifier, to cache data to be parsed and a buffer corresponding to the cached data obtained according to the data to be parsed, if the L3/L4 layer functional entity determines that the trigger instruction is present, the corresponding buffer is found according to the target identifier, and then the data to be parsed in the buffer and the cached data obtained according to the data to be parsed are deleted.
In a possible embodiment, the target protocol layer functional entity may be the highest layer functional entity among a plurality of protocol layer functional entities for analyzing and processing data to be analyzed, where the target protocol layer functional entity determines that there is indication information, and transmits, to the wireless access point, buffered data obtained according to the data to be analyzed according to a transport block identifier of a transport block carrying a correct CRC in the indication information. And determining the data to be analyzed through the transmission block identification of the transmission block with the correct CRC carried in the indication information, and then transmitting the cache data obtained according to the data to be analyzed to the wireless access point.
In the embodiment of the invention, the processor determines the data to be analyzed, if the trigger instruction is determined, the trigger instruction carries the target identifier, and then the data to be analyzed is deleted according to the trigger instruction or the cache data obtained according to the data to be analyzed is deleted, so that the deletion processing can be performed on the related data of the wrong transmission block in time, and the storage resource is saved.
Referring to fig. 5, a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention is provided, where the data processing method may be implemented by a processor, and more specifically, a physical layer functional entity or a MAC layer functional entity implemented by the processor is implemented. The data processing apparatus described in the present embodiment includes:
a determining unit 501, configured to determine a target identifier if a cyclic redundancy check CRC error occurs in a transport block, where the target identifier is a transport block identifier of the transport block in which the cyclic redundancy check CRC error occurs;
and the processing unit 502 is configured to trigger, according to the target identifier, deletion processing of data associated with the target identifier, where the data is cached by a target protocol layer functional entity.
In a possible embodiment, the processing unit 502 is specifically configured to:
analyzing the received code blocks to obtain code block data;
and obtaining data associated with the transmission block identifier according to the code block data and the transmission block identifier of the transmission block to which the code block data belongs, and transmitting the data associated with the transmission block identifier to a target protocol layer functional entity.
In a possible embodiment, the processing unit 502 is specifically configured to:
Obtaining transmission data for transmitting to a next protocol layer functional entity according to the code block data;
adding the transport block identifier into description information generated for the transport data, wherein the description information is at least used for describing a protocol layer where the transport data is located;
based on the transport block identification, data associated with the transport block identification is obtained.
In a possible embodiment, the processing unit 502 is specifically configured to:
triggering the deletion processing of the cached data associated with the target identifier by at least one target protocol layer functional entity by using a triggering instruction, wherein the triggering instruction carries the target identifier.
In a possible embodiment, the trigger instruction is configured to trigger the target protocol layer functional entity to determine, according to the target identifier carried in the trigger instruction, data associated with the target identifier, so as to delete the data associated with the target identifier.
In a possible embodiment, the data associated with the target identity comprises a protocol data unit PDU or a service data unit SDU.
In a possible embodiment, the target protocol layer functional entity includes: a highest layer functional entity in a plurality of protocol layer functional entities which analyze the data associated with the target identifier;
The data associated with the target identifier is cached in a corresponding buffer zone by the target protocol layer functional entity according to the target identifier;
the trigger instruction is used for triggering the target protocol layer functional entity to determine a buffer area associated with the target identifier according to the target identifier carried in the trigger instruction so as to delete the data cached in the buffer area.
In a possible embodiment, the target protocol layer functional entity includes one or more of the following: a physical layer functional entity, a medium access control MAC layer functional entity, a radio link control RLC layer functional entity, a packet data convergence protocol PDCP layer functional entity and an L3/L4 functional entity.
In a possible embodiment, the processing unit 502 is specifically configured to:
if the Cyclic Redundancy Check (CRC) of the transport block is correct, the target protocol layer functional entity is indicated to transmit data associated with a transport block identifier of the transport block with the correct CRC to a wireless access point by using indication information;
wherein, the target protocol layer functional entity includes: and analyzing the data associated with the transmission block identification of the transmission block with the correct CRC, wherein the data is the highest layer function entity in a plurality of protocol layer function entities.
In the embodiment of the present invention, if the CRC of the transport block is in error, the determining unit 501 determines the target identifier, where the target identifier is the transport block identifier of the transport block in which the CRC is in error, and the processing unit 502 triggers, according to the target identifier, deletion processing of data associated with the target identifier and cached by the target protocol layer functional entity, so that deletion processing can be performed on relevant data of the erroneous transport block relatively timely.
It can be understood that the functions of each unit of the data processing apparatus of this embodiment may be implemented according to the method in fig. 1 in the above method embodiment, and the specific implementation process may refer to the relevant description of the above method embodiment, which is not repeated herein.
Referring to fig. 6, another schematic structural diagram of a data processing apparatus according to an embodiment of the present invention is provided, where the data processing apparatus is applied to a processor, and more specifically, is implemented by a target protocol functional entity implemented by the processor. The data processing apparatus described in the present embodiment includes:
a determining unit 601, configured to determine data to be parsed, where the data to be parsed includes a protocol data unit PDU or a service data unit SDU, and a transport block identifier of a transport block to which the data to be parsed belongs is set for the data to be parsed;
And the processing unit 602 is configured to delete the data to be parsed or delete the buffer data obtained according to the data to be parsed according to the trigger instruction if the trigger instruction is determined, where the trigger instruction carries a target identifier, and the target identifier is a transport block identifier of a transport block in which a cyclic redundancy check CRC error occurs.
In a possible embodiment, the processing unit 602 is specifically configured to:
after the data to be analyzed is successfully analyzed, determining a transmission block identifier of a transmission block to which the data to be analyzed belongs;
and according to the transmission block identification, caching the analyzed cache data in a corresponding buffer area.
In a possible embodiment, the processing unit 602 is specifically configured to:
adding the transmission block identifier in the description information generated for the cache data;
and caching the description information and the buffer data comprising the transmission block identification into a corresponding buffer zone, wherein the description information is at least used for describing a protocol layer where the transmission data is located.
It can be understood that the functions of each unit of the data processing apparatus of this embodiment may be implemented according to the method in fig. 4 in the above method embodiment, and the specific implementation process may refer to the relevant description of the above method embodiment, which is not repeated herein.
Referring to fig. 7, a schematic structural diagram of an intelligent terminal according to an embodiment of the present invention, where the intelligent terminal in the embodiment shown in fig. 7 may include: a processor 701, one or more input devices 702, one or more output devices 703, and a memory 704. The processor 701, the input device 702, the output device 703, and the memory 704 are connected by a bus 705. The memory 704 is used for storing a computer program comprising program instructions, and the processor 701 is used for executing the program instructions stored in the memory 704.
In an embodiment of the present invention, the processor 701 performs the following operations by executing executable program code in the memory 704: if the Cyclic Redundancy Check (CRC) of the transport block is wrong, determining a target identifier, wherein the target identifier is the transport block identifier of the transport block with the Cyclic Redundancy Check (CRC) error; and triggering the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier according to the target identifier.
In a possible embodiment, the processor 701 is further configured to:
analyzing the received code blocks to obtain code block data;
and obtaining data associated with the transport block identifier according to the code block data and the transport block identifier obtained by the transport block to which the code block data belongs, and transmitting the data associated with the transport block identifier to a target protocol layer functional entity.
In a possible embodiment, the processor 701 is configured to:
obtaining transmission data for transmitting to a next protocol layer functional entity according to the code block data;
adding the transport block identifier into description information generated for the transport data, wherein the description information is at least used for describing a protocol layer where the transport data is located;
based on the transport block identification, data associated with the transport block identification is obtained.
In a possible embodiment, the processor 701 triggers a deletion process of the data associated with the target identifier, which is cached by the target protocol layer functional entity, to be specifically implemented as follows:
triggering the deletion processing of the cached data associated with the target identifier by at least one target protocol layer functional entity by using a triggering instruction, wherein the triggering instruction carries the target identifier.
In a possible embodiment, the trigger instruction is configured to trigger the target protocol layer functional entity to determine, according to the target identifier carried in the trigger instruction, data associated with the target identifier, so as to delete the data associated with the target identifier.
In a possible embodiment, the data associated with the target identity comprises a protocol data unit PDU or a service data unit SDU.
In a possible embodiment, the target protocol layer functional entity includes: a highest layer functional entity in a plurality of protocol layer functional entities which analyze the data associated with the target identifier;
the data associated with the target identifier is cached in a corresponding buffer zone by the target protocol layer functional entity according to the target identifier;
the trigger instruction is used for triggering the target protocol layer functional entity to determine a buffer area associated with the target identifier according to the target identifier carried in the trigger instruction so as to delete the data cached in the buffer area.
In a possible embodiment, the target protocol layer functional entity includes one or more of the following: a physical layer functional entity, a medium access control MAC layer functional entity, a radio link control RLC layer functional entity, a packet data convergence protocol PDCP layer functional entity and an L3/L4 functional entity.
In a possible embodiment, the processor 701 is further configured to:
if the Cyclic Redundancy Check (CRC) of the transport block is correct, the target protocol layer functional entity is indicated to transmit data associated with a transport block identifier of the transport block with the correct CRC to a wireless access point by using indication information;
Wherein, the target protocol layer functional entity includes: and analyzing the data associated with the transmission block identification of the transmission block with the correct CRC, wherein the data is the highest layer function entity in a plurality of protocol layer function entities.
Alternatively, the processor 701 performs the following operations by executing executable program code in the memory 704: determining data to be analyzed, wherein the data to be analyzed comprises a protocol data unit PDU or a service data unit SDU, and setting a transmission block identifier of a transmission block to which the data to be analyzed belongs for the data to be analyzed;
and if the trigger instruction is determined to exist, deleting the data to be analyzed or deleting the cache data obtained according to the data to be analyzed according to the trigger instruction, wherein the trigger instruction carries a target identifier, and the target identifier is a transmission block identifier of a transmission block with Cyclic Redundancy Check (CRC) error.
In a possible embodiment, the processor 701 is further configured to:
after the data to be analyzed is successfully analyzed, determining a transmission block identifier of a transmission block to which the data to be analyzed belongs;
and according to the transmission block identification, caching the analyzed cache data in a corresponding buffer area.
In a possible embodiment, the processor 701 is further configured to:
adding the transmission block identifier in the description information generated for the cache data;
and caching the description information and the buffer data comprising the transmission block identification into a corresponding buffer zone, wherein the description information is at least used for describing a protocol layer where the transmission data is located.
It should be appreciated that in embodiments of the present application, the processor 701 may be a central processing unit (Central Processing Unit, CPU), the processor 701 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 704 may include read only memory and random access memory, and provides instructions and data to the processor 701. A portion of memory 704 may also include non-volatile random access memory.
The input device 702 may include a keyboard or the like; the output device 703 may include a display or the like.
In a specific implementation, the processor 701, the input device 702, the output device 703 and the memory 704 described in the embodiment of the present invention may perform the implementation described in the flow of the data processing method provided in fig. 1 or fig. 4, or may perform the implementation described in the data processing apparatus provided in fig. 5 or fig. 6, which are not described herein again.
Embodiments of the present invention also provide a computer readable storage medium storing a computer program, where the computer program includes program instructions, and when the program instructions are executed by a processor, the program instructions may perform the steps performed in fig. 1 or fig. 4 in the embodiments of the data processing method.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (15)
1. A method of data processing, comprising:
if the Cyclic Redundancy Check (CRC) of the transmission block is wrong, determining a target identifier, wherein the target identifier is the transmission block identifier of the transmission block with the Cyclic Redundancy Check (CRC) error, and the transmission block consists of a plurality of code blocks;
triggering deletion processing of data associated with the target identifier, which is cached by a target protocol layer functional entity, according to the target identifier, wherein the target protocol layer functional entity comprises one or more protocol layer functional entities for analyzing the data associated with the target identifier;
before the determining the target identification, the method further comprises: analyzing the received code block to obtain code block data, obtaining data associated with the transmission block identifier according to the code block data and the transmission block identifier of the transmission block to which the code block data belongs, and transmitting the data associated with the transmission block identifier to a target protocol layer functional entity.
2. The method according to claim 1, wherein the obtaining the data associated with the transport block identifier according to the code block data and the transport block identifier of the transport block to which the code block data belongs includes:
obtaining transmission data for transmitting to a functional entity of a previous protocol layer according to the code block data;
adding the transport block identifier to the description information generated for the transport data, wherein the description information is at least used for describing a protocol layer where the transport data is located;
based on the transport block identification, data associated with the transport block identification is obtained.
3. The method according to claim 1, wherein the triggering the deletion process of the data associated with the target identifier cached by the target protocol layer functional entity comprises:
triggering the deletion processing of the cached data associated with the target identifier by at least one target protocol layer functional entity by using a triggering instruction, wherein the triggering instruction carries the target identifier.
4. A method according to claim 3, wherein the trigger instruction is configured to trigger the target protocol layer functional entity to determine data associated with the target identifier according to the target identifier carried in the trigger instruction, so as to delete the data associated with the target identifier.
5. The method according to any of claims 1-4, wherein the data associated with the target identity comprises a protocol data unit, PDU, or a service data unit, SDU.
6. The method of claim 3, wherein the step of,
the target protocol layer functional entity comprises: a highest layer functional entity in a plurality of protocol layer functional entities which analyze the data associated with the target identifier;
the data associated with the target identifier is cached in a corresponding buffer zone by the target protocol layer functional entity according to the target identifier;
the trigger instruction is used for triggering the target protocol layer functional entity to determine a buffer area associated with the target identifier according to the target identifier carried in the trigger instruction so as to delete the data cached in the buffer area.
7. The method according to claim 1, wherein the target protocol layer functional entity comprises one or more of the following:
a physical layer functional entity, a medium access control MAC layer functional entity, a radio link control RLC layer functional entity, a packet data convergence protocol PDCP layer functional entity and an L3/L4 functional entity.
8. The method according to claim 1, wherein the method further comprises:
If the Cyclic Redundancy Check (CRC) of the transport block is correct, the target protocol layer functional entity is indicated to transmit data associated with a transport block identifier of the transport block with the correct CRC to a wireless access point by using indication information;
wherein, the target protocol layer functional entity includes: and analyzing the data associated with the transmission block identification of the transmission block with the correct CRC, wherein the data is the highest layer function entity in a plurality of protocol layer function entities.
9. A method of data processing, the method comprising:
determining data to be analyzed, wherein the data to be analyzed comprises a protocol data unit PDU or a service data unit SDU, and a transport block identifier of a transport block to which the data to be analyzed belongs is set for the data to be analyzed;
if a trigger instruction is determined, deleting the data to be analyzed or deleting the cache data obtained according to the data to be analyzed according to the trigger instruction, wherein the trigger instruction carries a target identifier, the target identifier is a transmission block identifier of a transmission block with Cyclic Redundancy Check (CRC) error, and the transmission block consists of a plurality of code blocks;
before the determining the data to be parsed, the method further includes: analyzing the received code blocks to obtain code block data; and obtaining data associated with the transmission block identifier according to the code block data and the transmission block identifier of the transmission block to which the code block data belongs.
10. The method according to claim 9, wherein the method further comprises:
after the data to be analyzed is successfully analyzed, determining a transmission block identifier of a transmission block to which the data to be analyzed belongs;
and according to the transmission block identification, caching data obtained by analyzing the data to be analyzed in a corresponding buffer area.
11. The method according to claim 10, wherein the buffering the buffered data obtained by parsing the data to be parsed in the corresponding buffer according to the transport block identifier includes:
adding the transmission block identifier in the description information generated for the cache data;
and caching the description information comprising the transmission block identifier and the cached data into a corresponding buffer area, wherein the description information is at least used for describing a protocol layer where the transmission data is located.
12. A data processing apparatus, the apparatus comprising:
a determining unit, configured to determine a target identifier if a cyclic redundancy check CRC of a transport block is wrong, where the target identifier is a transport block identifier of the transport block in which the cyclic redundancy check CRC is wrong, and the transport block is composed of a plurality of code blocks;
The processing unit is used for triggering the deletion processing of the data which is cached by the target protocol layer functional entity and is associated with the target identifier according to the target identifier, wherein the target protocol layer functional entity comprises one or more protocol layer functional entities which analyze the data which is associated with the target identifier;
before the target identification is determined, the processing unit is used for analyzing the received code blocks to obtain code block data; and obtaining data associated with the transmission block identifier according to the code block data and the transmission block identifier of the transmission block to which the code block data belongs, and transmitting the data associated with the transmission block identifier to a target protocol layer functional entity.
13. A data processing apparatus, the apparatus comprising:
the determining unit is used for determining data to be analyzed, wherein the data to be analyzed comprises a protocol data unit PDU or a service data unit SDU, and a transmission block identifier of a transmission block to which the data to be analyzed belongs is set for the data to be analyzed;
the processing unit is used for deleting the data to be analyzed or deleting the cache data obtained according to the data to be analyzed according to the trigger instruction if the trigger instruction is determined, wherein the trigger instruction carries a target identifier, the target identifier is a transmission block identifier of a transmission block with CRC error, and the transmission block consists of a plurality of code blocks;
Before the data to be analyzed is determined, the processing unit is used for analyzing the received code blocks to obtain code block data; and obtaining data associated with the transmission block identifier according to the code block data and the transmission block identifier of the transmission block to which the code block data belongs.
14. A smart terminal comprising a memory and a processor, the processor and the memory being interconnected, wherein the memory is adapted to store a computer program comprising program instructions, the processor being configured to invoke the program instructions, the program instructions comprising instructions for performing the data processing method of any of claims 1 to 8 or the data processing method of any of claims 9 to 11.
15. A computer readable storage medium storing one or more instructions adapted to be loaded by a processor and to perform the data processing method of any one of claims 1 to 8 or the data processing method of any one of claims 9 to 11.
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