WO2018068310A1

WO2018068310A1 - Data processing method and device, and communications system

Info

Publication number: WO2018068310A1
Application number: PCT/CN2016/102155
Authority: WO
Inventors: 史玉龙; 吴联海; 贾美艺
Original assignee: 富士通株式会社; 史玉龙; 吴联海; 贾美艺
Priority date: 2016-10-14
Filing date: 2016-10-14
Publication date: 2018-04-19

Abstract

Provided are a data processing method and device, and a communications system. The device comprises a data partitioning unit for partitioning, when data transmission is triggered at a MAC layer, data to be transmitted when a size of the data to be transmitted, an RLC header also being added thereto, is greater than that of an available transmission block in the current transmission, such that a size of a partitioned first segment is less than or equal to the size of the available transmission block, and the RLC header is reserved in the first segment. The RLC header comprises at least a sequence number (SN) field and a segmentation identifier (SF) field, the SN field indicating a sequence number of the data to be transmitted, and the SF field indicating whether the data to be transmitted is partitioned or indicating whether the data to be transmitted is the partitioned first segment when the data to be transmitted is being partitioned. Embodiments of the invention can process encapsulated data according to available transmission resources when data transmission is required, ensuring full utilization of transmission resources and significantly reducing delays in data packet processing.

Description

Data processing method, device and communication system

Technical field

The present invention relates to the field of communications, and in particular, to a data processing method, apparatus, and communication system.

Background technique

The 3rd Generation Partnership Project (3GPP) is studying issues related to next-generation wireless communication systems to meet the needs of new services.

Currently, in the Long Term Evolution (LTE) system, the Radio Link Control (RLC) layer is based on the size of the transport block indicated by the Media Access Control (MAC) layer. The Service Data Unit (SDU) performs segmentation or concatenation, so that the assembled RLC Protocol Data Unit (PDU) matches the size of the transport block. For example, when the size of one or more RLC SDUs is smaller than the size of the transport block, multiple RLC SDUs need to be concatenated into the current RLC PDU; when the size of the RLC SDU is larger than the size of the transport block, the RLC SDU needs to be performed. The segmentation is such that the size of the RLC PDU matches the transport block size of the MAC layer to improve the utilization of radio resources.

It should be noted that the above description of the technical background is only for the purpose of facilitating a clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these aspects are set forth in the background section of the present invention.

Summary of the invention

The inventors have found that in order to reduce processing delay and avoid redundant processing with the MAC layer cascading function, the 3GPP discussion can remove the cascading function of the RLC layer and retain its partitioning function. However, if the existing method is still used after the MAC layer indicates the transport block size, the RLC layer packet processing delay is not reduced, and there is no effective solution at present.

In response to the above problems, embodiments of the present invention provide a data processing method, apparatus, and communication system, which can reduce processing delay of data packets.

According to a first aspect of the present invention, a data processing apparatus is provided, comprising:

a data splitting unit for adding data transfer when the media access control (MAC) layer is triggered When the size of the data to be transmitted in the radio link control (RLC) header is larger than the available transport block size in the current transmission, the data to be transmitted is divided so that the size of the first segment after the division is less than or equal to the available Transmitting the block size and retaining the RLC header in the first segment;

The RLC header includes at least a sequence number (SN) field and a segmentation identifier (SF) field, the SN field is used to indicate a sequence number of the data to be transmitted, and the SF field is used to indicate whether the data to be transmitted is divided, or used to indicate Whether the data to be transmitted is divided, whether it is the first segment after the division.

According to the second aspect of the embodiment, a data processing apparatus is further provided, including:

a processing unit, configured to process the transmission data according to an indication of a sequence number (SN) field and a segmentation identifier (SF) field included in an RLC header of the received transmission data;

The RLC header includes at least an SN field and an SF field, where the SN field is used to indicate a sequence number of the transmission data, where the SF field is used to indicate whether the transmission data is divided, or is used to indicate whether the transmission data is divided. Is the first segment after the segmentation.

According to the third aspect of the embodiment, a communication system is further provided, including:

A base station and user equipment are included; the user equipment comprising the data processing apparatus of the first aspect; the base station comprising the data processing apparatus of the second aspect.

The beneficial effects of the embodiments of the present invention are that, by using the embodiment of the present invention, the data to be transmitted may be encapsulated before the size of the transport block is indicated, and then, according to the available transmission resources, when indicating the size of the transmission opportunity and/or the transport block. The encapsulated data is processed to ensure that the packet processing delay is significantly reduced while fully utilizing the transmission resources.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the drawings, in which <RTIgt; It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in one or more other embodiments in the same or similar manner, in combination with, or in place of, features in other embodiments. .

It should be emphasized that the term "comprising" or "comprises" or "comprising" or "comprising" or "comprising" or "comprising" or "comprises"

DRAWINGS

The elements and features described in one of the figures or one embodiment of the embodiments of the invention may be combined with the elements and features illustrated in one or more other figures or embodiments. In the accompanying drawings, like reference numerals refer to the

The accompanying drawings are included to provide a further understanding of the embodiments of the invention Obviously, the drawings in the following description are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor. In the drawing:

1 is a schematic diagram of a data processing method of Embodiment 1;

2A and 2B are schematic diagrams showing the structure of a data package of Embodiment 1;

3A to 3C are schematic diagrams showing the structure of a data package of Embodiment 1;

4 is a schematic diagram showing an example of a data processing method of Embodiment 1;

Figure 5 is a schematic diagram of data division of Embodiment 1;

6 is a schematic diagram of a data processing method of Embodiment 2;

7 is a schematic diagram of a data processing method in step 601 of Embodiment 2;

8 is a schematic diagram showing an example of data assembly of Embodiment 2;

9 is a schematic diagram showing an example of data assembly of Embodiment 2;

10 is a schematic diagram showing an example of data assembly of Embodiment 2;

Figure 11 is a schematic diagram of a data processing apparatus of Embodiment 3;

12 is a schematic diagram showing the structure of a user equipment of Embodiment 3;

Figure 13 is a schematic diagram of a data processing apparatus of Embodiment 4;

Figure 14 is a schematic diagram of a base station of Embodiment 4;

Figure 15 is a schematic illustration of a processing unit;

Figure 16 is a schematic diagram of a communication system of Embodiment 5;

17 is a schematic diagram of a data encapsulation method of Embodiment 6;

Figure 18 is a schematic diagram of a data package apparatus of Embodiment 7;

Fig. 19 is a block diagram showing the configuration of the user equipment of the seventh embodiment.

detailed description

The foregoing and other features of the present invention will be apparent from the In the description The specific embodiments of the invention are disclosed in the drawings and the drawings, which are illustrated in the embodiment of the invention All modifications, variations, and equivalents are intended to be included within the scope of the appended claims. Various embodiments of the present invention will be described below with reference to the accompanying drawings. These embodiments are merely exemplary and are not limiting of the invention.

In the present application, a base station may be referred to as an access point, a broadcast transmitter, a Node B, an evolved Node B (eNB), etc., and may include some or all of their functions. The term "base station" will be used herein. Each base station provides communication coverage for a particular geographic area.

In this application, a mobile station or device may be referred to as a "user equipment (UE)." A UE may be fixed or mobile and may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, and the like. The UE may be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless telephone, a car, and the like.

The embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

1 is a schematic diagram of a data processing method of the first embodiment. The method is used on the sending end, such as the user equipment side, as shown in FIG. 1 , the method includes:

Step 101: When triggering data transmission, when the size of the data to be transmitted that has been added to the radio link control (RLC) header is larger than the available transport block size in the current transmission, the data to be transmitted is segmented, so that The size of the segmented first segment is less than or equal to the available transport block size, and the RLC header is retained in the first segment;

In this embodiment, when the base station allocates transmission resources to the user equipment, the MAC layer of the user equipment may be triggered to indicate a transmission opportunity and a transmission block size.

In this embodiment, the method further includes: when the size of the to-be-transmitted data of the added radio link control (RLC) header is less than or equal to the available transport block size in the current transmission, the available transmission may be used. The block transmits the data to be transmitted. In this way, the data to be transmitted is directly sent without performing the segmentation process on the data to be transmitted, thereby further reducing the processing delay of the data packet.

It can be seen from the embodiment that the data can be encapsulated before the size of the transport block is indicated, and then, when the data transmission is triggered, the encapsulated data is processed according to the available transmission resources to ensure that the transmission resources are fully utilized. Significantly reduces packet processing latency.

In this embodiment, as shown in FIG. 1, after step 101, the method may further include step 102:

The segmented first segment is transmitted using the available transport block. This step is an optional step.

In this embodiment, in step 101, the data to be transmitted may be divided into at least two segments. For example, when the data to be transmitted is divided into two segments, the method may further include:

Adding an RLC header to the second segment after the segmentation; the RLC header includes at least a sequence number (SN) field and a segmentation identifier (SF) field; the sequence number of the SN field is set to a sequence number of the transmission data plus a preset value, The SF field is set to indicate that the data of the second segment is split and not the first segment.

In this embodiment, the method may further include: buffering the second segment to which the LRC header is added. If the buffer is waiting in the buffer for transmission, the second segment that has been encapsulated can be processed as the data to be transmitted the next time the data transmission is indicated.

In this embodiment, when the data to be transmitted that has been added with the RLC header is further stored in the buffer, the method further includes: modifying the sequence number of the SN field of the other added RLC header, and the modified serial number is current. The serial number plus the preset value. In this embodiment, the preset value may be any value, for example, may be 1. In this way, the serial number of the data to be transmitted can be avoided, which is advantageous for the receiving end to assemble the received transmission data according to the serial number.

In this embodiment, the SF field in the RLC header can be represented by an identifier. For example, it can be represented by 0 or 1. For example, when the identifier is 0, indicating that the data to be transmitted is not divided, or indicating that the data to be transmitted is divided and is the first segment after the segmentation; when the identifier is 1, indicating the data to be transmitted The first segment that is segmented and not segmented; vice versa. However, the present invention is not limited thereto, and may be represented by other identifiers, which are not enumerated here.

In an embodiment, the data to be transmitted may be an upper layer, such as a Packet Data Convergence Protocol (PDCP) layer, which is delivered to a Service Data Unit (SDU) of the RLC layer. In this case, before the MAC layer triggers the data transmission, the data to be transmitted is encapsulated, that is, the RLC header is added to obtain the RLC PDU; and then the encapsulated data is processed when the MAC layer triggers the data transmission. In this case, before the MAC layer triggers the current data transmission, the method may further include: adding an RLC header to the to-be-transmitted data, and setting an SF field of the RLC header to indicate that the to-be-transmitted data is unsegmented; The SN fields in the RLC header may be numbered in the order of the RLC SDUs.

2A and 2B are schematic diagrams showing the structure of an encapsulated RLC PDU. When the data to be transmitted is the service data unit (SDU) that the upper layer submits to the RLC layer, as shown in FIG. 2A, the SN field is Si. In this embodiment, the numbers may be sequentially numbered. For example, each time an RLC SDU is received, the sequence number is increased by a preset value, such as incrementing by one; the SF field is set to indicate that the data to be transmitted is not split, such as setting the SF field to "0".

In this case, after the data to be transmitted is divided in step 101, the second segment after the segmentation may be encapsulated, and the package structure is as shown in FIG. 2B, and the SN field is a Si+ preset value. The preset value may be any value, for example, 1; the SF field is set to "1", and as shown in FIG. 2B, the RLC PDU is the second segment after the segmentation.

In an embodiment, the to-be-transmitted data may also be segmented data after other transmission data is divided. In this case, the SF field of the to-be-transmitted data may be set to indicate the segmented and segmented data of the to-be-transmitted data. Not the first segment.

3A to 3C are schematic diagrams showing the structure of an encapsulated RLC PDU. As shown in FIG. 3A, when the other transmission data is delivered from the upper layer to the service data unit (SDU) of the RLC layer, the encapsulation structure is similar to the structure shown in FIG. 2A. As shown in FIG. 3A, the SN field is Sj. The SF field is set to "0". When the data to be transmitted is the second segment after dividing the other transmission data, the structure after encapsulating the second segment is similar to that of FIG. 2B. As shown in FIG. 3B, the SN field is set to SN+. The default value, such as Sj+1; the SF field is set to "1".

In this case, after the data to be transmitted is divided in step 101, the second segment after the segmentation may be encapsulated. The package structure is as shown in FIG. 3C, and the SN field is Si+1+. 1, that is, Si+2; the SF field is set to "1". As shown in FIG. 3C, the RLC PDU is the second segment after the RLC PDU of FIG. 3B is divided.

In this way, after the receiving end receives the transmission data, the received data can be assembled according to the sequence number of the SN field and the indication of the SF field, which can further save the processing time of the receiving end.

The data processing method of this embodiment will be described in detail below with the sending end as the user equipment and the SF field being indicated by "0" or "1" as an example. For example, when the SF field is 0, it indicates that the data to be transmitted is not divided, or indicates that the data to be transmitted is divided and is the first segment after the segmentation; when the SF field is 1, the to-be-transmitted is indicated. The first segment of the data that is split and not split.

4 is a flow chart of a data processing method according to Embodiment 1 of the present invention. As shown in FIG. 4, the method includes:

Step 401, the RLC layer receives data submitted by an upper layer (such as a PDCP) layer;

In this embodiment, the data is an RLC SDU.

Step 402: Encapsulate the received data.

In this embodiment, an RLC header is added to the received RLC SDU to encapsulate the data. The RLC header includes at least an SN field and an SF field, and the specific meaning is as described above, wherein the sequence number of the SN field may be sequentially numbered according to the received data. For example, a total of n data are received, and the SN fields of the n data can be set to 1, 2, ..., n-1, n, respectively, in the order of being a positive integer; the SF fields are all set to 0, such as 2A and 3A are shown.

Step 403: Cache the encapsulated data.

In this way, the buffered data can be processed in the case where the data transmission is triggered and the size of the transport block (TB) is indicated, as described below.

Step 404, it is determined whether a data transmission indication and a transmission block size are obtained. When the determination result is yes, step 405 is performed; otherwise, the determination is continued;

In this embodiment, the base station allocates transmission resources to the user equipment, and may trigger data transmission and transmission block size indicated by the MAC layer.

Step 405, it is determined whether the size of the current data to be transmitted is greater than the available transport block size in the current transmission, when the determination result is yes, step 406 is performed; otherwise, step 413 is performed;

In this embodiment, the current to-be-transmitted data is encapsulated data buffered in the buffer, such as the i-th encapsulated data, and its SN field=i; its SF field is 0, as shown in FIG. 2A or 3A. Indicates that the data is undivided; the available transport block may allocate all configured resources or remaining resources for the user to the user; for example, in the current transmission opportunity, when the current data to be transmitted is the first RLC PDU The available transport block corresponds to all the resources of the current transmission opportunity; in the current transmission opportunity, after the RLC layer submits one or more RLC PDUs to be transmitted to the MAC layer, that is, before the data to be transmitted yet, The one or more RLC PDUs use the resources allocated by the base station for the user equipment. If the remaining resources exist in the resources allocated by the base station for the user equipment, the available transport blocks are the remaining resources in the current transmission opportunity.

Step 406: Perform segmentation on the current data to be transmitted, so that the size of the segmented first segment is less than or equal to the available transport block size, and the RLC header is reserved in the first segment.

In this embodiment, if the SF field of the RLC header of the current data to be transmitted is 0 in step 405, and indicates that the segmentation is not performed, the SF field in the RLF header reserved in the first segment after the segmentation is still 0, but indicates that the data is split and is the first segment after the segmentation.

Step 407, transmitting the first segment by using the available transport block.

Step 408, adding an RLC header to the second segment after the segmentation;

In this embodiment, the sequence number of the SN field of the RLC header is set to the sequence number of the transmitted data plus a preset value, that is, the SN field=i+preset value; the SF field is set to “1”, as shown in FIG. 2B. It is shown in FIG. 3B; in this embodiment, the preset value may be taken as 1, but the embodiment of the present invention is not limited thereto, and is not enumerated here.

Step 409, the second segment to which the RLC header is added is cached.

In this way, the second segment that has been encapsulated can be processed as data to be transmitted the next time the data transmission is indicated.

In step 410, it is determined whether other data to be transmitted is still buffered; when the determination result is yes, step 411 is performed; otherwise, step 412 is performed.

Step 411: Modify the sequence number of the SN field of the other added RLC headers, and the modified sequence number is the current sequence number plus a preset value;

For example, the sequence number of the SN field of the i+1th RLC header is changed from the current i+1 to the i+1+preset value, if the preset value is 1; for other cached data, the processing manner is similar. I will not repeat them here.

In this way, the serial number of the data to be transmitted can be avoided, which is advantageous for the receiving end to assemble the received transmission data according to the serial number.

Step 412, it is judged whether there is still data to be transmitted; when the judgment result is YES, the process returns to step 404 to further judge, waiting for the next transmission instruction; otherwise, the process result.

Step 413, in step 405, when the determination result is no, the available transport block can be used to transmit the current data to be transmitted;

For example, the RLC layer delivers the RLC PDU to the MAC layer, and uses the available transport block to transmit the current data to be transmitted.

After step 413, step 412 is performed to further determine.

In this embodiment, the order in which the above steps are performed may be adjusted, and some steps may be omitted. For example, step 407 may be completed after step 406, and is not limited to being completed between

steps

406 and 408; further, steps 401 to 403 are performed. It can be omitted. In the case where the data has been encapsulated and cached, the data to be transmitted can be directly obtained from the buffer, and the above steps can be omitted.

In this embodiment, in step 412, when the determination result is yes, the process returns to step 404. At this time, the current data to be transmitted may be the encapsulated upper layer submitted data, or may be the divided non-first one. Segmentation. When the data to be transmitted is a non-first segment of the divided transmission data, when the determination result is YES in step 404, The subsequent processing is similar to the above, except that:

The SF field of the current data to be transmitted is "1"; and in step 408, the SF field of the RLC header of the divided second segment is set to "1" as shown in FIG. 3C.

In this way, the data submitted by the upper layer to the RLC layer may not be divided or divided into at least two segments, and the RLC header of each segment data may include an SN field and an SF field, so that the receiving end can receive each data according to the received data. The indication of the SN field and the SF field processes the received data.

Fig. 5 is a schematic diagram showing the data division of the first embodiment. As shown in FIG. 5, the encapsulated data stored in the cache; when processing the current SN=i data, the data is divided, and the divided second segment is stored in the buffer, and the SN field thereof The sequence number is set to SN=i+1; at this time, the sequence number of the SN field of other data that is cached is modified, as shown in FIG. 5.

According to the embodiment, the transmitting end may encapsulate the data transmitted by the upper layer before indicating the size of the transport block, and then process the encapsulated data according to the available transmission resources to ensure that the transmission resource is fully utilized. Significantly reduce packet processing latency.

Example 2

Figure 6 is a diagram showing a data processing method according to a second embodiment of the present invention. The method is used at the receiving end, such as the base station side, as shown in FIG. 6, the method includes:

Step 601: Process the transmission data according to an indication of a sequence number (SN) field and a segmentation identifier (SF) field included in an RLC header of the received transmission data.

The RLC header includes at least an SN field, which is used to indicate a sequence number of the transmission data, and an SF field, where the SF field is used to indicate whether the transmission data is divided, or is used to indicate whether the transmission data is divided. The first segment after the segmentation.

It can be seen from the above embodiment that by dividing the transmission data at the transmitting end and adding the RLC header including the SN field and the SF field, the receiving end assembles the data according to the information indicated by the RLC header, and the method is simple, and the processing data is improved. s efficiency.

In this embodiment, in order to further improve the efficiency of processing data, before step 601, optionally, the method may further include step 602: in the order of the sequence numbers indicated by the SN field in the RLC header included in the received transmission data. The received transmission data is sorted; and in step 601, the received transmission data may be sequentially processed based on the ranking result.

FIG. 7 is a schematic diagram of processing of transmission data in step 601 in the second embodiment. As shown in FIG. 7, in step 601, when processing each transmission data, the method includes:

Step 701: Determine, according to the SF field of the RLC header of the current transmission data, and/or the SF field of the RLC header of the transmission data adjacent to the sequence number indicated by the SN field of the RLC header of the current transmission data, the current transmission data is not The segmented data is still segmented data;

Step 702: When it is determined that the current transmission data is undivided data, the RLC header of the current transmission data is removed;

Step 703: When it is determined that the current transmission data is the divided data, the segmented data is assembled according to an SF field of an RLC header of at least one transmission data adjacent to the current transmission data.

In this embodiment, in step 701, the SF field of the RLC header of the current transmission data and the transmission data adjacent thereto indicates that the transmission data is not divided or indicates that the transmission data is divided and is the first segment after the division. When segmenting, it is determined that the current transmission data is unsplit data.

In this embodiment, in step 701, the SF field of the RLC header of the current transmission data indicates that the current transmission data is not segmented or indicates that the current transmission data is segmented and is the first segment after segmentation, and The SF field of the transmission data adjacent to the current transmission data indicates that the transmission data is divided and is not the first segment, and it is determined that the current transmission data is the segmented data.

In this embodiment, in step 701, when the SF field of the RLC header of the current transmission data indicates the first field of the current transmission data that is divided and not divided, it is determined that the current transmission data is the divided data. And is the non-first field after the split.

In this embodiment, in step 701, the transmission data adjacent to the current transmission data refers to the data immediately following, and may be determined according to the sequence number indicated by the SN field of the RLC header of the transmission data, for example, the current transmission data. When the SN field is i, the SN field of the transmission data adjacent thereto is i+preset value, such as i+1.

In this embodiment, in step 703, the data adjacent to the current transmission data may be at least one subsequent data, and/or at least one of the data in front thereof, according to the sequence number indicated by the SN field of the RLC header of the transmission data. The determination, and the amount of adjacent data, may be determined by an indication of the SF field of the current transmission data and the neighboring data.

In this embodiment, the SF field in the RLC header can be represented by an identifier. For example, it can be represented by 0 or 1. For example, when the identifier is 0, indicating that the data to be transmitted is not divided, or indicating that the data to be transmitted is divided and is the first segment after the segmentation; when the identifier is 1, indicating the data to be transmitted Segmented and The first segment after non-segmentation; vice versa.

The SF field is 0 or 1 and "0" is used to indicate that the transmission data is not divided, or the data to be transmitted is divided and is the first segment after the segmentation; "1" is used to indicate the to-be-segment The first segment in which the transmission data is divided and not divided is described as an example.

In the example 1, when the SF field of the RLC header of the current transmission data is “0” and the SF field of the RLC header of the transmission data adjacent thereto is also “0”, it is determined that the current transmission data is undivided data. This can directly remove the RLC header. In addition, the data portion from which the RLC header is removed may be submitted to an upper layer protocol (such as the PDCP layer).

In example 2, when the SF field of the RLC header of the current transmission data is “0”, and the SF field of the RLC header of the transmission data adjacent thereto is “1”, the current transmission data may be determined to be the divided data and The first segment after the segmentation. In this way, at least one transmission data adjacent to the sequence number of the SN field may be assembled according to the sequence number of the SN field of the current data, and the adjacent transmission data may be determined according to its SF field, for example, as shown in FIG. The sequence number of the SN field of the RLC header of the transmitted data is i, and the SF field of the transmission data whose sequence numbers are i+1, i+2, i+3, i+4, and i+5 all indicate "1". Then, the current transmission data is assembled with the transmission data of the sequence number from i+1 to i+5.

In example 3, when the SF field of the RLC header of the current transmission data is "1", it may be determined that the current transmission data is the divided non-first segment data. In this way, at least one transmission data before and after the sequence number of the SN field is assembled according to the sequence number of the SN field of the current data, and the adjacent transmission data can be determined according to its SF field, for example, as shown in FIG. It is shown that the sequence number of the SN field of the RLC header of the current transmission data is i, and then the SF field of the transmission data whose sequence number is i+1, i+2 indicates "1", and the transmission data of the sequence number i+3 The SF field indicates "0", the SF field of the transmission data of the preceding sequence numbers i-1, i-2 all indicate "1", and the SF field of the transmission data of the sequence number i-3 indicates "0", then the sequence number is from i -3 to i+2 transfer data for assembly.

FIG. 10 is a specific example of FIG. 9. When the SF field of the transmission data immediately following the current transmission data indicates "0", the current data and the previous data from i-5 to i-1 are assembled.

In this embodiment, in order to improve the efficiency of data processing, step 602 may be performed first, and the received transmission data is sorted according to the sequence number of the SN field, and then each transmission data is assembled according to the sequence, thereby improving processing efficiency. save time.

Example 3

The third embodiment of the present invention provides a data processing device. The principle of the device is similar to that of the first embodiment. Therefore, the specific implementation may refer to the implementation of the method in the first embodiment. .

Figure 11 is a diagram showing the data processing apparatus of the third embodiment. As shown in FIG. 11, the device 1100 includes:

a data dividing unit 1101, configured to split the data to be transmitted when the size of the data to be transmitted that has been added to the radio link control (RLC) header is greater than the available transport block size in the current transmission when the data transmission is triggered. So that the size of the segmented first segment is less than or equal to the available transport block size, and the RLC header is retained in the first segment;

It can be seen from the embodiment that when indicating the size of the transport block, the encapsulated data is processed according to the available transmission resources to ensure that the packet processing delay is significantly reduced in the case of fully utilizing the transmission resources.

In this embodiment, when the data to be transmitted is divided into two segments, as shown in FIG. 11, optionally, the device 1100 further includes a first encapsulating unit 1102, which is used for the second segment after the segmentation. Adding an RLC header to the segment; the RLC header includes at least a sequence number (SN) field and a split identifier (SF) field; the sequence number of the SN field is set to a sequence number of the data to be transmitted plus a preset value, and the SF field is set to indicate The data of the second segment is divided and not the first segment.

In this embodiment, as shown in FIG. 11, the apparatus 1100 further includes a buffer unit 1103 for buffering the second segment to which the LRC header is added. In this way, after the next data transmission instruction is obtained, the encapsulated data is processed, thereby greatly reducing the processing delay.

In this embodiment, as shown in FIG. 11, optionally, the apparatus 1100 further includes an updating unit 1104, which is used to modify the sequence number of the SN field of the other added RLC headers, and the modified sequence number is the current serial number plus The preset value is up.

In the present embodiment, the apparatus 1100 further includes a transmitting unit (not shown) for transmitting the segmented first segment using the available transport block.

In this embodiment, the SF field in the RLC header is represented by an identifier. Specifically, as described in Embodiment 1, the content thereof is incorporated herein, and details are not described herein again.

In this embodiment, as shown in FIG. 11, when the data to be transmitted is a service data unit transmitted by an upper layer, Optionally, the apparatus 1100 further includes a second encapsulating unit 1105, configured to add the RLC header for the to-be-transmitted data before the MAC layer triggers data transmission, and the SF field of the RLC header is set to indicate that the data to be transmitted is not Segmented. In addition, the data encapsulated by the second package unit 1105 can also be stored in the cache unit 1103.

Also provided in this embodiment is a user equipment configured with the data processing apparatus 1100 as described above.

FIG. 12 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 12, user equipment 1200 can include a central processing unit (CPU) 1201 and a memory 1202; and a memory 1202 coupled to central processing unit 1201. The memory 1202 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 1201 to process the data to be transmitted.

In one embodiment, the functionality of data processing apparatus 1100 can be integrated into central processor 1201. The central processing unit 1201 may be configured to implement the data processing method described in Embodiment 1.

For example, the central processing unit 1201 may be configured to: when triggering data transmission, when the size of the data to be transmitted that has been added to the radio link control (RLC) header is larger than the available transport block size in the current transmission, the to-be-transmitted Dividing the data such that the size of the segmented first segment is less than or equal to the available transport block size, and retaining the RLC header in the first segment;

In another embodiment, the data processing apparatus 1100 may be configured separately from the central processing unit 1201. For example, the data processing apparatus 1100 may be configured as a chip connected to the central processing unit 1201, such as the data processing unit shown in FIG. The functions of the data processing device 1100 are implemented by the control of the central processing unit 1201.

In addition, as shown in FIG. 12, the user equipment 1200 may further include: a communication module 1203, an input unit 1204, a display 1206, an audio processor 1205, an antenna 1207, a power source 1208, and the like. The functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 1200 does not necessarily have to include all the components shown in FIG. 12; in addition, the user equipment 1200 may also include components not shown in FIG. 12, and reference may be made to the prior art.

With the user equipment of this embodiment, when the size of the transport block is indicated, the encapsulated data is processed according to the available transmission resources to ensure that the packet processing delay is significantly reduced in the case of fully utilizing the transmission resources.

Example 4

The fourth embodiment of the present invention provides a data processing device. The principle of the device is similar to that of the second embodiment. Therefore, the specific implementation may refer to the implementation of the method in the second embodiment. .

Figure 13 is a diagram showing the data processing apparatus of the fourth embodiment. As shown in FIG. 13, the apparatus 1300 includes:

The processing unit 1301 is configured to process the transmission data according to an indication of a sequence number (SN) field and a segmentation identifier (SF) field included in an RLC header of the received transmission data;

It can be seen that, by dividing the transmission data at the transmitting end, and adding the RLC header including the SN field and the SF field, the receiving end assembles the data according to the information indicated by the RLC header, and the method is simple, and the processing data is improved. effectiveness.

In this embodiment, optionally, the apparatus 1300 further includes a sorting unit 1302, configured to sort the received transmission data in the order of the sequence numbers indicated by the SE field in the RLC header. And the processing unit 1301 is configured to sequentially process the sorted transmission data according to the sorting result of the sorting unit 1302. This can further improve the processing efficiency.

In this embodiment, when processing the current one transmission data, the processing unit 1301 includes:

a determining unit 1401, configured to determine, according to an SF field of an RLC header of the current transmission data, and/or an SF field according to an RLC header of the transmission data adjacent to the sequence number indicated by the SN field of the RLC header of the current transmission data Whether the transmitted data is undivided data or segmented data;

a data processing unit 1402, configured to: when determining that the current transmission data is undivided data, remove the RLC header of the current transmission data; or

When it is determined that the current transmission data is the divided data, the segmented data is assembled according to an RLC header SF field of at least one transmission data adjacent to a sequence number indicated by an SN field of the RLC header of the current transmission data.

In the embodiment, the method for determining whether the current transmission data is undivided data or the divided data is as described in Embodiment 2, and the content thereof is incorporated herein, and details are not described herein again.

In this embodiment, the data processing unit 1402 processes the current transmission data as described in Embodiment 2, and the content thereof is incorporated herein, and details are not described herein again.

Also provided in this embodiment is a base station configured with a data processing apparatus 1300 as previously described.

FIG. 15 is a schematic diagram showing the structure of a base station according to an embodiment of the present invention. As shown in FIG. 15, base station 1500 can include a central processing unit (CPU) 1501 and a memory 1502; and memory 1502 is coupled to central processing unit 1501. The memory 1502 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 1501 to assemble the received transmission data.

In one embodiment, the functionality of data processing apparatus 1300 can be integrated into central processor 1501. The central processing unit 1501 may be configured to implement the data processing method described in Embodiment 2.

For example, the central processing unit 1501 may be configured to: process the transmission data according to an indication of a sequence number (SN) field and a segmentation identifier (SF) field included in an RLC header of the received transmission data;

In another embodiment, the data processing apparatus 1300 may be configured separately from the central processing unit 1501. For example, the data processing apparatus 1300 may be configured as a chip connected to the central processing unit 1501, such as the data processing unit shown in FIG. The function of the data processing device 1300 is realized by the control of the central processing unit 1501.

In addition, as shown in FIG. 15, the base station 1500 may further include: a transceiver 1503, an antenna 1504, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It is to be noted that the base station 1500 does not have to include all of the components shown in FIG. 15; in addition, the base station 1500 may also include components not shown in FIG. 15, and reference may be made to the prior art.

With the base station of this embodiment, when the transmission data is divided at the transmitting end, and the RLC header including the SN field and the SF field is added, the receiving end can assemble the data according to the information indicated by the RLC header, and the method is simple and the processing is improved. The efficiency of the data.

Example 5

Figure 16 is a schematic diagram of a communication system of Embodiment 5. As shown in FIG. 16, the communication system 1600 includes a base station 1601 and a user equipment 1602, and a user equipment 1603; wherein the user equipment 1602, the user equipment 1603, and the base station 1601 are configured as described in Embodiment 3 and Embodiment 4, and their contents are combined. Here, it will not be described here.

In the communication system 1600, the user equipment 1602 and the user equipment 1603 can process the data to be transmitted, and the specific processing method is as described in Embodiment 1. The base station 1601 can process the received transmission data, and the specific processing method is as described in Embodiment 2. , the contents of which are incorporated herein, and will not be described here.

With the communication system of the embodiment of the present invention, the transmitting end may encapsulate the data to be transmitted before indicating the size of the transport block, and then process the encapsulated data according to the available transmission resources to ensure that the transmission resource is fully utilized. The packet processing delay is significantly reduced; and the receiving end can assemble the data according to the information indicated by the RLC header, and the method is simple, and the efficiency of processing the data is improved.

Example 6

Embodiment 6 of the present invention further provides a data encapsulation method.

Figure 17 is a diagram showing the data encapsulation method of the sixth embodiment. As shown in FIG. 17, the method includes: adding data to an upper layer, or adding an RLC header to the divided data, where the RLC header includes a sequence number (SN) field and a split identifier (SF) field, where the SN field is used to indicate The sequence number of the data, the SF field is used to indicate whether the data is divided, or is used to indicate whether the segment is the first segment when the data to be transmitted is divided.

The data is encapsulated by the header structure of the embodiment, so that the sending end performs the data transmission indication and the transport block size on the encapsulated data, thereby reducing the processing delay; and at the receiving end, according to the header structure Helps assemble data.

Example 7

The seventh embodiment of the present invention provides a data encapsulating device. The principle of the device is similar to that of the sixth embodiment. Therefore, the specific implementation may refer to the implementation of the method in the sixth embodiment. Description.

Figure 18 is a diagram showing the data package apparatus of the seventh embodiment. As shown in FIG. 18, the apparatus 1800 includes an encapsulating unit 1801 that adds data to an upper layer or adds an RLC header to the divided data, the RLC header including a sequence number (SN) field and a split identifier (SF) field, the SN field A sequence number indicating the data, the SF field is used to indicate whether the data is divided, or is used to indicate whether the first segment after the segmentation is determined when the data to be transmitted is divided.

By using the header structure of the embodiment, the data is encapsulated, so that the transmitting end obtains the data transmission indication and When the block size is transferred, the encapsulated data is processed, thereby reducing the processing delay; and at the receiving end, the data structure is assembled according to the header structure.

In the embodiment, a user equipment is further provided, and the user equipment is configured with the data encapsulating device 1800 as described above.

Figure 19 is a block diagram showing the configuration of a user equipment according to Embodiment 7 of the present invention. As shown in FIG. 19, user equipment 1900 can include a central processing unit (CPU) 1901 and a memory 1902; and memory 1902 coupled to central processing unit 1901. The memory 1902 can store various data; in addition, a program of the data package is stored, and the program is executed under the control of the central processing unit 1901 to encapsulate the data to be transmitted.

In one embodiment, the functionality of data encapsulation device 1800 can be integrated into central processor 1901. The central processing unit 1901 can be configured to implement the data encapsulation method described in Embodiment 6.

For example, the central processing unit 1901 can be configured to: add data to the upper layer, or add an RLC header to the segmented data, the RLC header including a sequence number (SN) field and a segmentation identifier (SF) field, the SN field being used for Indicates the sequence number of the data, the SF field is used to indicate whether the data is divided, or is used to indicate whether the first segment after the division is performed when the data to be transmitted is divided.

In another embodiment, the data encapsulating device 1800 can be configured separately from the central processing unit 1901. For example, the data encapsulating device 1800 can be configured as a chip connected to the central processing unit 1901, such as the data encapsulating unit shown in FIG. The function of the data encapsulation device 1800 is implemented by the control of the central processing unit 1901.

In addition, as shown in FIG. 19, the user equipment 1900 may further include: a communication module 1903, an input unit 1904, a display 1906, an audio processor 1905, an antenna 1907, a power source 1908, and the like. The functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 1900 does not have to include all of the components shown in FIG. 19; in addition, the user equipment 1900 may also include components not shown in FIG. 19, and reference may be made to the prior art.

The user equipment of the embodiment encapsulates the data, so that the sending end performs the data transmission indication and the transport block size on the encapsulated data, thereby reducing the processing delay; and at the receiving end, according to the header structure, Helps assemble data.

The embodiment of the present invention further provides a computer readable program, wherein the program causes the data processing device or user equipment to perform the data processing described in Embodiment 1 when the program is executed in a data processing device or a user equipment method.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the data processing device or the user equipment to execute the data processing method described in Embodiment 1.

The embodiment of the present invention further provides a computer readable program, wherein the program causes the data processing device or the base station to execute the data processing method described in Embodiment 2 when the program is executed in a data processing device or a base station.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the data processing device or the base station to execute the data processing method described in Embodiment 2.

The embodiment of the present invention further provides a computer readable program, wherein the program causes the data encapsulating device or user equipment to perform the data encapsulation described in Embodiment 6 when the program is executed in a data encapsulating device or a user equipment method.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the data encapsulating device or the user equipment to execute the data encapsulation method described in Embodiment 6.

The above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

The data processing method in the data processing apparatus described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in FIGS. 11 and 13 and/or one or more combinations of functional block diagrams may correspond to individual software modules of a computer program flow, or to respective hardware modules. . These software modules may correspond to the respective steps shown in FIGS. 1 and 6, respectively. These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).

The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a larger capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card. Or a large-capacity flash memory device.

One or more of the functional blocks described with respect to Figures 11 and 13 and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein. An application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof. One or more of the functional blocks described with respect to Figures 11 and 13 and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple micro A processor, one or more microprocessors in communication with the DSP, or any other such configuration.

The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that A person skilled in the art can make various modifications and changes to the invention in accordance with the principles of the invention, which are also within the scope of the invention.

Claims

A data processing device comprising:

a data splitting unit, configured to: when the media access control (MAC) layer triggers data transmission, when the size of the data to be transmitted that has been added to the radio link control (RLC) header is larger than the available transport block size in the current transmission, The data to be transmitted is divided, so that the size of the segmented first segment is less than or equal to the available transport block size, and the RLC header is reserved in the first segment;

The RLC header includes at least a sequence number (SN) field and a segmentation identifier (SF) field, where the SN field is used to indicate a sequence number of the data to be transmitted, and the SF field is used to indicate whether the data to be transmitted is segmented. Or indicating whether the first segment after the division is performed when the data to be transmitted is divided.
The apparatus according to claim 1, wherein when the data to be transmitted is divided into two segments, the device further comprises:

a first encapsulating unit, configured to add an RLC header to the second segment after the segmentation;

The RLC header includes at least a sequence number (SN) field and a segmentation identifier (SF) field; the sequence number of the SN field is set to a sequence number of the data to be transmitted plus a preset value, and the SF field is set to indicate the The data of the second segment is divided and not the first segment.
The apparatus according to claim 2, wherein said apparatus further comprises a buffer unit for buffering the second segment to which the RLC header is added.
The device of claim 2, wherein the device further comprises:

An update unit, configured to modify the sequence number of the SN field of the other added RLC headers, and the modified sequence number is the current sequence number plus the preset value.
The apparatus of claim 1, wherein the apparatus further comprises a transmitting unit for transmitting the segmented first segment using the available transport block.
The apparatus of claim 1 wherein the SF field in the RLC header is represented by an identifier.
The apparatus of claim 6 wherein said identifier is 0 or 1;

When the identifier is 0, indicating that the data to be transmitted is not divided, or indicating that the data to be transmitted is divided and is the first segment after the segmentation; when the identifier is 1, the indication is The first segment after the segmentation and non-segmentation of the transmitted data is described; vice versa.
The apparatus according to claim 1, wherein, when the data to be transmitted is a service data unit delivered by an upper layer, the apparatus further includes a second encapsulating unit, configured to: before the MAC layer triggers data transmission, The RLC header is added to the data to be transmitted, and the SF field of the RLC header is set to indicate that the data to be transmitted is not split.
A data processing device comprising:

a processing unit, configured to process the transmission data according to an indication of a sequence number (SN) field and a segmentation identifier (SF) field included in an RLC header of the received transmission data;

The RLC header includes at least an SN field for indicating a sequence number of the transmission data, and an SF field for indicating whether the transmission data is divided, or when the transmission data is divided. Used to indicate whether it is the first segment after segmentation.
The apparatus according to claim 9, wherein said apparatus further comprises a sorting unit configured to sort the received transmission data in order of sequence numbers indicated by the SN field in said RLC header;

And the processing unit is configured to sequentially process the sorted transmission data according to the sorting result of the sorting unit.
The apparatus according to claim 9, wherein, when processing the current one of the transmission data, the processing unit comprises:

a determining unit, configured to determine the current transmission according to an SF field of an RLC header of a current transmission data, and/or an SF field of an RLC header of transmission data adjacent to a sequence number indicated by an SN field of an RLC header of a current transmission data Whether the data is undivided data or segmented data;

a data processing unit, configured to: when determining that the current transmission data is undivided data, remove the RLC header of the current transmission data; or

When it is determined that the current transmission data is the divided data, the segmented data is assembled according to an SF field of an RLC header of at least one transmission data adjacent to a sequence number indicated by an SN field of the RLC header of the current transmission data.
The apparatus according to claim 11, wherein said judging unit is configured to transmit in an SF field of an RLC header of said current transmission data and a sequence number indicated by an SN field of said RLC header of said current transmission data The SF field of the data indicates that the transmission data is undivided or indicates that the transmission data is divided and is the first segment after the segmentation, and it is determined that the current transmission data is undivided data.
The apparatus according to claim 11, wherein said judging unit is for said current number of transmissions The SF field of the RLC header of the data indicates that the current transmission data is not partitioned or indicates that the current transmission data is divided and is the first segment that is divided, and is indicated by the SN field of the RLC header of the current transmission data. The SF field of the sequenced adjacent transmission data indicates the first segment of the split data and the divided data is not divided, or the SF field of the RLC header of the current transmission data indicates the current When the first field of the divided and non-divided data is transmitted, it is determined that the current transmission data is the divided data.
A communication system comprising a base station and a user equipment; wherein the user equipment comprises the data processing apparatus of claim 1; and the base station comprises the data processing apparatus of claim 9.