CN101175024A - Series connection device for wireless links control layer service data unit - Google Patents
Series connection device for wireless links control layer service data unit Download PDFInfo
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Abstract
The invention provides a serial device of a wireless link control layer service data unit, including a calculation module which is arranged above a media access control layer and used for calculating the size of a transmission block according to a predetermined scheduling algorithm and notifies the wireless link control layer. The device still includes a serial module which is arranged above the wireless link control layer and is used for judging that whether the sum of the length of the wireless link control layer service data unit, the overhead of the wireless link control layer and the overhead of the media access control layer is larger than the size of the transmission block. The serial module determines that whether to implement the serial treatment according to the judged result. The device also includes a transmission block generation module which is arranged above the media access control layer and is used for judging that whether the sum of the length of the media access control layer service data unit and the overhead of the media access control layer is smaller than the size of the transmission block. And the transmission block is produced according to the judged result.
Description
Technical field
The present invention relates to the digital mobile communication technical field, more specifically, relate to the stringer of wireless chain control layer service data unit in a kind of wireless communication system.
Background technology
3-G (Generation Three mobile communication system) supports high-speed downlink packet to insert in the wireless access network of (HSDPA), automatically repeat requests (ARQ) entity is positioned at the wireless chain control layer (RLC) of radio network controller, mix the media access control layer (MAC) that automatic repeat requests (HARQ) entity is positioned at the base station, be responsible for the transmission/retransmission operation of the protocol Data Unit (PDU) of corresponding protocol layer generation respectively.Packet need carry out segmentation/serial connection/filling at radio network controller to be handled, and need carry out multiplex/demultiplex in the base station and handle.
Hereinafter, with the downlink data packet is example, rlc layer at radio network controller, wireless chain control layer service data unit (RLC SDU) from its upper-layer protocol layer is carried out segmentation/serial connection/filling processing and increases corresponding header according to one group of set length, form protocol data unit of wireless links control layer (RLC PDU).Surpass this both measured length if generate the length of the service data unit (SDU) of certain PDU, then the leading portion from this SDU partly intercepts this both measured length; If this both measured length of the curtailment of a SDU, the leading portion that then intercepts next SDU partly is concatenated into the back segment part of this PDU; The remainder of the SDU that is intercepted under above-mentioned two kinds of situations is as the leading portion part that generates next PDU; Infeasible and remaining SDU length both during measured length, then in the end increases filler less than this when beading process.At the MAC of base station layer, will be multiplexed into transmission channel from the SDU of Different Logic channel.Multiplexing process relates to the operation that serial connection/filling, the corresponding header of increase and control information form protocol Data Unit MAC PDU based on one group of set transmission block (TB) size and transformat.
In the such scheme, packet has carried out respectively filling in two nodes of wireless access network to be handled, and has increased processing expenditure and redundant information, has reduced systematic function.Because the rlc layer of radio network controller can't in time be known instant physical channel conditions, therefore can't carry out segmentation/serial connection/filling and handle according to the selected transport block size of actual schedule result, it is rational adopting this scheme.But in the 3G (Third Generation) Moblie long evolving system, rlc layer and MAC layer are arranged in the base station of wireless access network jointly, two layer entities all can in time be known instant physical channel conditions, so segmentation/serial connection/filling processing all can be based on the selected transport block size of Real-Time Scheduling result.Rlc layer and MAC layer that the high-speed packet of 3-G (Generation Three mobile communication system) inserts (HSPA) evolution system also may all be positioned at the base station, therefore also may adopt this scheme to generate RLC PDU at rlc layer.
After adding rlc layer header overhead and MAC layer header overhead, RLC SDU length during greater than the selected transmission block TB of MAC layer size, need carry out segment processing to RLC SDU.But,, also can bring certain drawback if only RLC SDU is carried out segmentation according to transmission block TB size.If wireless environment is fine, the selected transmission block TB of MAC layer scheduling entity size is very big, RLC will be very big according to the RLCPDU size that this TB size segmentation is generated, when media access control layer HARQ error of transmission needs the ARQ of rlc layer to retransmit, may cause two kinds of consequences: (1) ARQ need transmit bigger RLC PDU when retransmitting, and has wasted Radio Resource; (2) if wireless environment variation when retransmitting, can't transmit initial RLC PDU, then need carry out heavily segmentation to RLC PDU, increase processing expenditure and header overhead, and the probability of heavily segmentation takes place when retransmitting and is greater than less RLC PDU in bigger RLC PDU at rlc layer or MAC layer.And weigh the problem that can't transmit Initial R LC PDU when fragmentation feature can only solve the ARQ re-transmission, owing to still needing to transmit the full content of whole RLC PDU, so can't solve the waste of radio resources problem.
If the size for RLC PDU is carried out certain restriction, then can alleviate the problems referred to above to a great extent.Yet 3GPP (third generation partner program) long evolving system does not also determine whether and can be connected in series processing to the RLC SDU under the radio bearer at present, in order to address this problem, the invention provides the segmentation method of a kind of RLC SDU.
Summary of the invention
Excessive in order to overcome in the communication technology RLC PDU layer header overhead, must transmit the full content of whole RLC PDU and cause the problem of waste of radio resources, the invention provides a kind of series-mounting and device thereof of wireless chain control layer service data unit, carry out the self adaptation serial connection for RLCPDU and generate protocol Data Unit, determine the serial connection of RLC SDU according to selected TB size of MAC layer scheduling entity and default RLC PDU dimension threshold jointly.
One aspect of the present invention provides a kind of series-mounting of wireless chain control layer service data unit, and it may further comprise the steps: step S102, and media access control layer calculates the size of transmission block according to predetermined dispatching algorithm, and notifies wireless chain control layer; Step S104, wireless chain control layer judge the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer header overhead and whether greater than the size of transmission block, if judged result is for being not less than, then the wireless chain control layer service data unit is not connected in series processing, if judged result be less than, then judge the length of the length that whether also has follow-up wireless chain control layer service data unit and wireless chain control layer service data unit in the wireless chain control layer and follow-up wireless chain control layer service data unit and whether less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer, and determine whether follow-up wireless chain control layer service data unit is connected in series processing according to judged result; And step S106, wireless chain control layer sends to media access control layer with protocol data unit of wireless links control layer, and as the service data unit of media access control layer, media access control layer judge the length of media access control layer service data unit and media access control layer header overhead and whether less than the size of transmission block, and generate transmission block according to judged result.
According to an aspect of the present invention, in step S104, it is further comprising the steps of: if the length of the length of wireless chain control layer service data unit and follow-up wireless chain control layer service data unit and less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer then is concatenated into the wireless chain control layer service data unit with follow-up wireless chain control layer service data unit; If the length of the length of wireless chain control layer service data unit and follow-up wireless chain control layer service data unit and greater than the size of transmission block or greater than the threshold value of protocol data unit of wireless links control layer, then follow-up wireless chain control layer service data unit is not connected in series processing, but generates the radio link layer protocol Data Unit.
In addition, according to the present invention, in step S104, when the header overhead of the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer and during greater than the size of transmission block, further comprising the steps of: that the wireless chain control layer service data unit is carried out segment processing to generate protocol data unit of wireless links control layer.
According to an aspect of the present invention, step S106 is further comprising the steps of: if judged result is for being not less than, then media access control layer generates the measure-alike transmission block of size and transmission block according to the media access control layer service data unit; If judged result be less than, then media access control layer carries out multiplexing process or increases the measure-alike transmission block that filler generates size and transmission block media access control layer service data unit and other media access control layer service data unit.
The quality of service requirement that can carry according to the Radio Link of concrete business according to the threshold value of protocol data unit of wireless links control layer of the present invention is provided with.It can be set to a threshold value, alternatively, is one group of threshold value according to different typical radio condition setting.
Another aspect of the present invention provides a kind of stringer of wireless chain control layer service data unit, it comprises with lower device: computing module, be positioned on the media access control layer, be used for calculating the size of transmission block according to predetermined dispatching algorithm, and the notice wireless chain control layer; Concatenation module, be positioned on the wireless chain control layer, be used to judge the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer header overhead and whether greater than the size of transmission block, if judged result is for being not less than, then the wireless chain control layer service data unit is not connected in series processing, if judged result be less than, then judge the length of the length that whether also has follow-up wireless chain control layer service data unit and wireless chain control layer service data unit in the wireless chain control layer and follow-up wireless chain control layer service data unit and whether less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer, and determine whether follow-up wireless chain control layer service data unit is connected in series processing according to judged result; And the transmission block generation module, be positioned on the media access control layer, be used to judge the length of media access control layer service data unit and media access control layer header overhead and whether less than the size of transmission block, and generate transmission block according to judged result.
According to an aspect of the present invention, concatenation module also comprises: first judge module, be used to judge the length of the length of wireless chain control layer service data unit and follow-up wireless chain control layer service data unit and whether less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer: if judged result is for being then follow-up wireless chain control layer service data unit to be concatenated into the wireless chain control layer service data unit; If judged result then is not connected in series processing to follow-up wireless chain control layer service data unit for not, but generate the radio link layer protocol Data Unit.
In addition, concatenation module according to the present invention also comprises: segmentation module, be positioned on the wireless chain control layer, be used for when the header overhead of the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer and during greater than the size of transmission block, the wireless chain control layer service data unit is carried out segment processing to generate protocol data unit of wireless links control layer.
According to an aspect of the present invention, the transmission block generation module also comprises second judge module, be used to judge the length of media access control layer service data unit and media access control layer header overhead and whether less than the size of transmission block: if judged result is for being not less than, then media access control layer is according to the measure-alike transmission block of media access control layer service data unit generation size and transmission block; If judged result be less than, then media access control layer carries out multiplexing process or increases the measure-alike transmission block that filler generates size and transmission block media access control layer service data unit and other media access control layer service data unit.
The quality of service requirement that can carry according to the Radio Link of concrete business according to the threshold value of protocol data unit of wireless links control layer of the present invention is provided with.It can be set to a threshold value, alternatively, is one group of threshold value according to different typical radio condition setting.
Adopt the series-mounting and the device thereof of wireless chain control layer service data unit of the present invention, can determine the segmentation of RLC SDU according to selected TB size of MAC layer scheduling entity and default RLCPDU dimension threshold jointly, thereby reduced the header overhead of RLC PDU, and then reduced the processing expenditure when RLC PDU retransmits and weighed fragmentation overhead, reached the purpose of effectively utilizing Radio Resource.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the series-mounting of wireless chain control layer service data unit of the present invention;
Fig. 2 is the block diagram according to the stringer of wireless chain control layer service data unit of the present invention;
Fig. 3 is the system construction drawing of base station user face protocol stack according to an embodiment of the invention; And
Fig. 4 is the detail flowchart of the series-mounting of wireless chain control layer service data unit according to an embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to the series-mounting of wireless chain control layer service data unit of the present invention.As shown in Figure 1, the series-mounting of wireless chain control layer service data unit may further comprise the steps:
(1) step S102, media access control layer calculates the size of transmission block according to predetermined dispatching algorithm, and notifies wireless chain control layer.
(2) step S104, wireless chain control layer judge the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer header overhead and whether greater than the size of transmission block, if judged result is for being not less than, then the wireless chain control layer service data unit is not connected in series processing, if judged result be less than, then judge the length of the length that whether also has follow-up wireless chain control layer service data unit and wireless chain control layer service data unit in the wireless chain control layer and follow-up wireless chain control layer service data unit and whether less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer, and determine whether follow-up wireless chain control layer service data unit is connected in series processing according to judged result.
Wherein, if the length of the length of wireless chain control layer service data unit and follow-up wireless chain control layer service data unit and less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer then is concatenated into the wireless chain control layer service data unit with follow-up wireless chain control layer service data unit; If the length of the length of wireless chain control layer service data unit and follow-up wireless chain control layer service data unit and greater than the size of transmission block or greater than the threshold value of protocol data unit of wireless links control layer, then follow-up wireless chain control layer service data unit is not connected in series processing, but generates the radio link layer protocol Data Unit.
In addition, when the header overhead of the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer and during greater than the size of transmission block, further comprising the steps of: that the wireless chain control layer service data unit is carried out segment processing to generate protocol data unit of wireless links control layer.
(3) step S106, wireless chain control layer sends to media access control layer with protocol data unit of wireless links control layer, and as the service data unit of media access control layer, media access control layer judge the length of media access control layer service data unit and media access control layer header overhead and whether less than the size of transmission block, and generate transmission block according to judged result.
Wherein, if judged result is for being not less than, then media access control layer generates the measure-alike transmission block of size and transmission block according to the media access control layer service data unit; If judged result be less than, then media access control layer carries out multiplexing process or increases the measure-alike transmission block that filler generates size and transmission block media access control layer service data unit and other media access control layer service data unit.
At this, the quality of service requirement that the threshold value of protocol data unit of wireless links control layer can be carried according to the Radio Link of concrete business is provided with, it can be set to a threshold value, alternatively, is one group of threshold value according to different typical radio condition setting.
Fig. 2 is the block diagram according to the stringer of wireless chain control layer service data unit of the present invention.
The stringer 200 of wireless chain control layer service data unit comprises with lower device: computing module 202, be positioned on the media access control layer, and be used for calculating the size of transmission block according to predetermined dispatching algorithm, and the notice wireless chain control layer.
Wherein, concatenation module 206 also comprises first judge module 2062, be used to judge the length of the length of wireless chain control layer service data unit and follow-up wireless chain control layer service data unit and whether less than the size of transmission block and less than the threshold value of protocol data unit of wireless links control layer: if judged result is for being then follow-up wireless chain control layer service data unit to be concatenated into the wireless chain control layer service data unit; If judged result then is not connected in series processing to follow-up wireless chain control layer service data unit for not, but generate the radio link layer protocol Data Unit.
In addition, concatenation module 206 also comprises: segmentation module 2064, be positioned on the wireless chain control layer, be used for when the header overhead of the header overhead of the length of wireless chain control layer service data unit and wireless chain control layer and media access control layer and during greater than the size of transmission block, the wireless chain control layer service data unit is carried out segment processing to generate protocol data unit of wireless links control layer.
Transmission block generation module 204 is positioned on the media access control layer, be used to judge the length of media access control layer service data unit and media access control layer header overhead and whether less than the size of transmission block, and generate transmission block according to judged result.
Wherein, transmission block generation module 204 also comprises second judge module 2042, be used to judge the length of media access control layer service data unit and media access control layer header overhead and whether less than the size of transmission block: if judged result is for being not less than, then media access control layer is according to the measure-alike transmission block of media access control layer service data unit generation size and transmission block; If judged result be less than, then media access control layer carries out multiplexing process or increases the measure-alike transmission block that filler generates size and transmission block media access control layer service data unit and other media access control layer service data unit.
The quality of service requirement that the threshold value of the protocol data unit of wireless links control layer among this embodiment can be carried according to the Radio Link of concrete business is provided with.It can be set to a threshold value, alternatively, is one group of threshold value according to different typical radio condition setting.
Fig. 3 is the system construction drawing of base station user face protocol stack 300 according to an embodiment of the invention.Fig. 4 is the detail flowchart of the series-mounting of wireless chain control layer service data unit according to an embodiment of the invention.
As shown in Figure 3, base station user face protocol stack 300 comprises physical layer 306, media access control layer 304 and wireless chain control layer 302.Wherein ARQ entity 3022 is positioned at wireless chain control layer 302, and scheduling entity 3042 and HARQ entity 3044 are positioned at media access control layer 304, should be noted that at this this figure has only provided the entity relevant with the present invention.
Describe Fig. 4 process in detail below with reference to Fig. 3.As shown in Figure 4, at first, in step S402, the scheduling entity 3042 of MAC layer 304 is calculated transport block size according to predetermined dispatching algorithm, and notice rlc layer 302.
Then, in step S404, rlc layer 302 judge the header overhead of the length of RLC SDU and rlc layer 302 and MAC layer 304 header overhead and whether less than the size of TB.If judged result is " being not less than " (step S404 is a "No"), then execution in step S406; If judged result for " less than " (step S404 is a "Yes"), then execution in step S408.
In step S406, this RLC SDU is not connected in series processing, if the header overhead of this RLCSDU length and rlc layer and MAC layer and greater than the TB size, then this RLC SDU is carried out segment processing and generates RLC PDU, proceed to step S414 then.
In step S408, rlc layer 302 judges whether continuous RLCSDU is arranged in the buffering area, if have, whether the total length of then judging this RLC SDU length and follow-up RLC SDU length is less than the TB size, and threshold value less than RLC PDU, if judged result is " being not less than " (step S408 is a "No"), then proceed to step S410; If judged result for " less than " (step S408 is a "Yes"), then proceed to step S412.
In step S410, no longer follow-up RLC SDU is connected in series processing, generate RLC PDU, proceed to step S414 then.
In step S412, follow-up RLC SDU is concatenated into this RLC SDU, then, proceed to step S408.
In step S414, rlc layer 302 sends to MAC layer 304 to above-mentioned RLC PDU, and as MAC SDU.
Then carry out step S416, MAC layer 304 judges that whether the length of this MAC SDU and MAC layer header overhead are less than this TB size.If judged result is " being not less than ", then proceed to step S418; If judged result be " less than ", then proceed to step S420.
In step S418, MAC layer 304 proceeds to step S402 then according to the transmission block that this MAC SDU generates the TB size.
In step S420,304 couples of this MAC SDU of MAC layer and other MAC SDU carry out multiplexing process or increase the transmission block that filler generates the TB size, proceed to step S402 then.
By above description of the invention, the present invention reduces the header overhead of RLC PDU, and processing expenditure and heavy fragmentation overhead when reducing RLC PDU and retransmitting, has improved efficiency of transmission and entire system performance, thereby has reached the purpose that makes full use of Radio Resource.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the stringer of a wireless chain control layer service data unit is characterized in that, comprising:
Computing module is positioned on the media access control layer, is used for calculating the size of transmission block according to predetermined dispatching algorithm, and notifies described wireless chain control layer;
Concatenation module, be positioned on the described wireless chain control layer, be used to judge the header overhead of the length of described wireless chain control layer service data unit and described wireless chain control layer and described media access control layer header overhead and whether greater than the size of described transmission block, if judged result is for being not less than, then described wireless chain control layer service data unit is not connected in series processing, if judged result be less than, then judge the length of the length that whether also has follow-up described wireless chain control layer service data unit and described wireless chain control layer service data unit in the described wireless chain control layer and described follow-up wireless chain control layer service data unit and whether less than the size of described transmission block and less than the threshold value of described protocol data unit of wireless links control layer, and determine whether described follow-up wireless chain control layer service data unit is connected in series processing according to judged result; And
The transmission block generation module, be positioned on the described media access control layer, be used to judge the length of described media access control layer service data unit and described media access control layer header overhead and whether less than the size of described transmission block, and generate transmission block according to judged result.
2. the stringer of wireless chain control layer service data unit according to claim 1, it is characterized in that, described concatenation module also comprises first judge module, is used to judge the length of the length of described wireless chain control layer service data unit and described follow-up wireless chain control layer service data unit and whether less than the size of described transmission block and less than the threshold value of described protocol data unit of wireless links control layer:
If judged result is for being then described follow-up wireless chain control layer service data unit to be concatenated into described wireless chain control layer service data unit; And
If judged result then is not connected in series processing to described follow-up wireless chain control layer service data unit, but generates described radio link layer protocol Data Unit for not.
3. the stringer of wireless chain control layer service data unit according to claim 1 and 2 is characterized in that, described concatenation module also comprises: segmentation module is positioned at
On the described wireless chain control layer, be used for when the header overhead of the header overhead of the length of described wireless chain control layer service data unit and described wireless chain control layer and described media access control layer and during greater than the size of described transmission block, described wireless chain control layer service data unit is carried out segment processing to generate described protocol data unit of wireless links control layer.
4. the stringer of wireless chain control layer service data unit according to claim 1, it is characterized in that, described transmission block generation module also comprises second judge module, be used to judge the length of described media access control layer service data unit and described media access control layer header overhead and whether less than the size of described transmission block:
If judged result is for being not less than, then described media access control layer generates the measure-alike transmission block of size and described transmission block according to described media access control layer service data unit; And
If judged result is less than, then described media access control layer described media access control layer service data unit and other media access control layer service data unit to be carried out multiplexing process or increase the measure-alike transmission block that filler generates size and described transmission block.
5. the stringer of wireless chain control layer service data unit according to claim 1, it is characterized in that the quality of service requirement that the threshold value of described protocol data unit of wireless links control layer can be carried according to the Radio Link of concrete business is provided with.
6. the stringer of wireless chain control layer service data unit according to claim 1, it is characterized in that the threshold value of described protocol data unit of wireless links control layer can be set to a threshold value or be one group of threshold value according to different typical radio condition setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101503535A CN101175024A (en) | 2006-10-30 | 2006-10-30 | Series connection device for wireless links control layer service data unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101503535A CN101175024A (en) | 2006-10-30 | 2006-10-30 | Series connection device for wireless links control layer service data unit |
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| CN101175024A true CN101175024A (en) | 2008-05-07 |
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| CNA2006101503535A Withdrawn CN101175024A (en) | 2006-10-30 | 2006-10-30 | Series connection device for wireless links control layer service data unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273256A (en) * | 2008-11-10 | 2011-12-07 | 高通股份有限公司 | A method and apparatus for supporting the large service data unit (sdu) |
| US8644338B2 (en) | 2009-01-07 | 2014-02-04 | Qualcomm Incorporated | Unbundling packets received in wireless communications |
| US8711881B2 (en) | 2009-01-07 | 2014-04-29 | Qualcomm Incorporated | Packet bundling at the PDCP layer |
| CN105517053A (en) * | 2016-02-01 | 2016-04-20 | 京信通信技术(广州)有限公司 | Method and system for reducing wireless link control layer protocol data unit subdivision sections |
-
2006
- 2006-10-30 CN CNA2006101503535A patent/CN101175024A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273256A (en) * | 2008-11-10 | 2011-12-07 | 高通股份有限公司 | A method and apparatus for supporting the large service data unit (sdu) |
| US8638699B2 (en) | 2008-11-10 | 2014-01-28 | Qualcomm Incorporated | Method and apparatus for supporting the large service data unit (SDU) |
| CN102273256B (en) * | 2008-11-10 | 2015-01-14 | 高通股份有限公司 | A method and apparatus for supporting the large service data unit (sdu) |
| US9326191B2 (en) | 2008-11-10 | 2016-04-26 | Qualcomm Incorporated | Method and apparatus for supporting the large service data unit (SDU) |
| US8644338B2 (en) | 2009-01-07 | 2014-02-04 | Qualcomm Incorporated | Unbundling packets received in wireless communications |
| US8711881B2 (en) | 2009-01-07 | 2014-04-29 | Qualcomm Incorporated | Packet bundling at the PDCP layer |
| CN105517053A (en) * | 2016-02-01 | 2016-04-20 | 京信通信技术(广州)有限公司 | Method and system for reducing wireless link control layer protocol data unit subdivision sections |
| CN105517053B (en) * | 2016-02-01 | 2019-03-05 | 京信通信系统（中国）有限公司 | Reduce the method and system that protocol data unit of wireless links control layer is segmented again |
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