CN106412990A - Terminal protocol stack cell processing method and device - Google Patents
Terminal protocol stack cell processing method and device Download PDFInfo
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- CN106412990A CN106412990A CN201510456520.8A CN201510456520A CN106412990A CN 106412990 A CN106412990 A CN 106412990A CN 201510456520 A CN201510456520 A CN 201510456520A CN 106412990 A CN106412990 A CN 106412990A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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Abstract
A terminal protocol stack cell processing method and device are disclosed. A cell is an abstract syntax mark cell. The method comprises the steps of acquiring a cell unrelated to a terminal in a terminal protocol stack, the cell unrelated to the terminal being a cell that is not required for the terminal; when the unrelated cell is a downlink cell, discarding a decoding result corresponding to the downlink cell; and when the unrelated cell is an uplink cell, obtaining the type to which the uplink cell belongs and determining whether to perform the encoding operation or not based on the type to which the uplink cell belongs. By using the method and device, the code amount of the LTE MTC terminal protocol stack can be effectively reduced.
Description
Technical field
The present invention relates to Internet of Things field, more particularly, to a kind of terminal protocol stack cell processing method and processing device.
Background technology
With the development of Internet of Things (Internet of Things, IoT), third generation partner program (3rd
Generation Partnership Project, 3GPP) introduce machine type communication (Machine in LTE
Type Communication, MTC) technology, for Machine To Machine (Machine to Machine,
M2M) communicate.
In wireless communication technology, 3GPP introduces Cat.0 in R12 standard, introduces in R13 standard
Low complex degree user terminal (Low Complexity User Equipment), is applied to inexpensive, low work(
Consumption and the M2M equipment of low rate.
In the prior art, LTE wireless heterogeneous networks (Radio Resource Control, RRC) from
Start after R8 standard to define abstract syntax notation one (ASN.1).The evolution version R9 of R8 standards track, R10,
R11, R12 and R13 are directed to each New function and have increased different ASN.1 cells newly, lead to ASN.1 to believe
First number gets more and more, and is converted into the size of code (Code Size) of LTE MTC terminal protocol stack source code
Also increasing.
Content of the invention
The problem how reducing LTE MTC terminal protocol stack code amount size that the embodiment of the present invention solves.
For solving the above problems, the embodiment of the present invention provides a kind of terminal protocol stack cell processing method, institute
Stating cell is abstract syntax notation one cell, and methods described includes：
Obtain in described terminal protocol stack the incoherent cell with described terminal, the incoherent letter of described terminal
Unit is the unwanted cell of described terminal；
When described incoherent cell is lower row cell, corresponding for described lower row cell decoded result is lost
Abandon；
When described incoherent cell is upstream cells, obtain the affiliated type of described upstream cells, and
According to the affiliated type of described upstream cells, judge whether to execute encoding operation.
Optionally, the described affiliated type according to described upstream cells, judges whether to execute encoding operation,
Including：When the affiliated type of described upstream cells is essential cell, coding is executed to described upstream cells
Operation；When the affiliated type of described upstream cells is optional cell, forbid described upstream cells are executed
Encoding operation.
Optionally, the definition position of described incoherent cell includes：Root area and expansion area.
Optionally, when the definition position of described cell is expansion area, described cell includes：Extension is believed
Unit, the sub- cell in extension cell.
Optionally, when described cell is extension cell, and when described extension cell is upstream cells,
Forbid executing encoding operation to described extension cell.
Optionally, when described cell be extension cell in sub- cell when, described according to described up letter
The affiliated type of unit, judges whether to execute encoding operation, including：When the affiliated type of described sub- cell is
During essential cell, encoding operation is executed to described sub- cell；When the affiliated type of described sub- cell is optional
During cell, forbid executing encoding operation to described sub- cell.
Embodiments provide a kind of terminal protocol stack cell processing meanss, described cell is abstract language
Method marker cell, described device includes：
Acquiring unit, for obtaining in described terminal protocol stack the incoherent cell with described terminal, described
The incoherent cell of terminal is the unwanted cell of described terminal；
Discarding unit, for when described incoherent cell is lower row cell, by described lower row cell pair
The decoded result answered abandons；
Encoding operation judging unit, for when described incoherent cell is upstream cells, obtaining described
The affiliated type of upstream cells, and the affiliated type according to described upstream cells, judge whether to execute coding
Operation.
Optionally, described encoding operation judging unit is used for：When the affiliated type of described upstream cells is must
When selecting cell, encoding operation is executed to described upstream cells；When the affiliated type of described upstream cells is can
When selecting cell, forbid executing encoding operation to described upstream cells.
Optionally, the definition position of described incoherent cell includes：Root area and expansion area.
Optionally, when the definition position of described cell is expansion area, described cell includes：Extension is believed
Unit, the sub- cell in extension cell.
Optionally, described encoding operation judging unit is used for：When described cell is extension cell, and institute
When stating extension cell for upstream cells, forbid executing encoding operation to described extension cell.
Optionally, when the sub- cell that described cell is in extension cell, described encoding operation judges single
Unit is used for：When the affiliated type of described sub- cell is essential cell, coding behaviour is executed to described sub- cell
Make；When the affiliated type of described sub- cell is optional cell, forbid executing coding behaviour to described sub- cell
Make.
Compared with prior art, the technical scheme of the embodiment of the present invention has advantages below：
When incoherent cell is lower row cell, after the decoding of incoherent cell, do not preserve decoding knot
Really, code word size can therefore be reduced.When incoherent cell is upstream cells, according to upstream cells
Affiliated type come to judge whether execute encoding operation that is to say, that not entering to all of upstream cells
Row decoding operate, therefore equally can reduce code word size.
Brief description
Fig. 1 is the flow chart of one of embodiment of the present invention terminal protocol stack cell processing method；
Fig. 2 be one of embodiment of the present invention cell define position be processing method during root area stream
Cheng Tu；
Fig. 3 is the definition position of one of embodiment of the present invention cell is processing method during expansion area
Flow chart；
Fig. 4 is the structural representation of one of embodiment of the present invention terminal protocol stack cell processing meanss.
Specific embodiment
In the prior art, LTE wireless heterogeneous networks (Radio Resource Control, RRC) from
Start after R8 standard to define abstract syntax notation one (Abstract Syntax Notation One, ASN.1) letter
Unit.It is new that evolution version R9, R10, R11, R12 and R13 of R8 standards track is directed to New function
Different ASN.1 cells are increased, therefore ASN.1 cell number gets more and more, and leads to be converted into LTE MTC
The size of code of terminal protocol stack source code is also increasing.
In embodiments of the present invention, obtain and the incoherent cell of terminal first.When incoherent cell is
During lower row cell, after the decoding of incoherent cell, do not preserve decoded result, therefore can reduce code word
Length.When incoherent cell is upstream cells, judged whether according to the affiliated type of upstream cells
Execution encoding operation is not that is to say, that be decoded to all of upstream cells operating, therefore equally
Code word size can be reduced.
Understandable for enabling the above-mentioned purpose of the embodiment of the present invention, feature and advantage to become apparent from, tie below
Close accompanying drawing the specific embodiment of the present invention is described in detail.
Embodiments provide a kind of terminal protocol stack cell processing method, with reference to Fig. 1, below by way of
Concrete steps are described in detail.
Step S101, obtain described terminal protocol stack in described terminal incoherent cell.
In being embodied as, terminal can be LTE MTC terminal.Get with LTE MTC terminal
Incoherent cell can be ASN.1 cell, ASN.1 cell be defined on SEQUENCE and
Cell in CHOICE.
In embodiments of the present invention, ASN.1 cell incoherent with LTE MTC terminal can be：When
Unwanted ASN.1 cell in the protocol stack of front LTE MTC terminal, namely current LTE MTC terminal
ASN.1 cell corresponding to the function that need not support.
For example, understand in actual applications, LTE MTC terminal need not support closed user group (Closed
Subscriber Group, CSG) function and carrier aggregation (Carrier Aggregation, CA) function,
Therefore CSG function and CA function corresponding ASN.1 cell can be judged to LTE MTC eventually
Hold incoherent ASN.1 cell.
In advance all incoherent ASN.1 cells can be arranged, generate and LTE MTC terminal
Corresponding uncorrelated ASN.1 cell information list, can include in uncorrelated ASN.1 cell information list
ASN.1 type, the affiliated type of cell and letter that ASN.1 cell title, cell type, cell are subordinate to
The ASN.1 of unit defines position etc., wherein：The affiliated type of cell is：Cell is optional or essential；
The ASN.1 of cell defines position：It is root area or expansion area that the ASN.1 of cell defines position.
In actual applications, root area refers to：Part before escape character in ASN.1 type definition, such as
Fruit ASN.1 type definition does not have escape character, then ASN.1 type definition all belongs to root area.Expansion area
Refer to：Part after escape character in ASN.1 type definition, may be sky, that is, after escape character
No content.
Step S102, judges whether incoherent cell is lower row cell.
In embodiments of the present invention, incoherent cell may be for upstream cells it is also possible to be lower row cell.
When incoherent cell is lower row cell, execution step S103；Otherwise, it is determined that incoherent cell is
Upstream cells, execution step S104.
Step S103, corresponding for described lower row cell decoded result is abandoned.
In being embodied as, when incoherent cell is lower row cell, due to this lower row cell and LTE
MTC terminal is uncorrelated, and therefore LTE MTC terminal need not be processed to this lower row cell to generate phase
Corresponding code variables.During decoding functions are decoded, after to this lower row cell decoding,
Abandon the corresponding decoded result of this lower row cell.
For example, lower row cell takies byte 1～byte 8 altogether, and decoding functions solve to byte 1～byte 8
After code operation, abandon the corresponding decoded result of byte 1～byte 8.
It is understood that in actual applications, it is also possible to directly skip descending letter in decoding process
The decoded information bit of unit, that is, forbid lower row cell is decoded.For example, lower row cell takies byte 1～8,
Then decoding functions skip the decoding operate to byte 1～8, proceed by decoding from byte 9.
Step S104, obtains the affiliated type of described upstream cells, and according to belonging to described upstream cells
Type, judges whether to execute encoding operation.
In being embodied as, the affiliated type of upstream cells can be：Optional and essential.Can be according to upper
The affiliated type of row cell, to determine whether to execute encoding operation to upstream cells.
In embodiments of the present invention, when upstream cells are for optional cell, then upstream cells need not be carried out
Encoding operation；When upstream cells are for essential cell, then upstream cells can be performed the encoding operation.
As can be seen here, when incoherent ASN.1 cell is descending ASN.1 cell, to incoherent
After the decoding of ASN.1 cell, do not preserve decoded result, therefore can reduce code word size.When incoherent
ASN.1 cell be up ASN.1 cell when, judged according to the affiliated type of up ASN.1 cell be
No execution encoding operation that is to say, that all of up ASN.1 cell is not decoded operate,
Therefore equally can reduce code word size.
In actual applications, when the code word size in terminal protocol stack reduces, terminal operationally interior
Deposit load also can accordingly reduce.
Understand from the above embodiment of the present invention, it can be root area or extension that the ASN.1 of cell defines position
Area.As a example ASN.1 definition position with regard to cell is root area and expansion area separately below, above-mentioned to the present invention
The terminal protocol stack cell processing method providing in embodiment illustrates.
With reference to Fig. 2, give in the embodiment of the present invention when the ASN.1 of cell defines at when position is root area
Reason method flow diagram.
Step S201, obtains ASN.1 and defines the uncorrelated ASN.1 cell that position is root area.
Step S202, judges whether ASN.1 cell is lower row cell.
In embodiments of the present invention, when ASN.1 cell is lower row cell, execution step S203；Otherwise,
Judge ASN.1 cell as upstream cells, execution step S204.
Step S203, skips the corresponding decoded information bit of ASN.1 cell.
In embodiments of the present invention, when ASN.1 cell is lower row cell, decoding functions are in decoding process
In skip the corresponding decoded information bit of ASN.1 cell, that is, decoding functions need not solve to ASN.1 cell
Code operation.Or decoding functions are decoded to ASN.1 cell operating, but do not preserve ASN.1 cell
Result, but decoded result is abandoned.That is, when incoherent ASN.1 cell is descending letter
When first, after the completion of the decoding operate of decoding functions executes, in decoded result, there is not ASN.1 cell
Corresponding decoded result, therefore can reduce LTE MTC terminal protocol stack code amount.
Step S204, judges whether the affiliated type of ASN.1 cell is essential.
In embodiments of the present invention, when the affiliated type of ASN.1 cell is essential, execution step S205；
Otherwise, it is determined that the affiliated type of ASN.1 cell is optional, execution step S206.
Step S205, operates to ASN.1 coding for information element.
In embodiments of the present invention, when ASN.1 cell be upstream cells and for essential option when, encoded
Cheng Zhong, performs the encoding operation according to default agreement.
Step S206, forbids ASN.1 coding for information element is operated.
In embodiments of the present invention, because LTE MTC terminal protocol stack does not need this ASN.1 cell,
And ASN.1 cell is option, therefore need not generate and this corresponding code of ASN.1 cell, therefore may be used
To reduce LTE MTC terminal protocol stack code amount.
With reference to Fig. 3, the ASN.1 definition position giving cell in the embodiment of the present invention is during expansion area
Process flow figure.
Step S301, obtains ASN.1 and defines the incoherent ASN.1 cell that position is expansion area.
Step S302, judges whether ASN.1 cell is extension cell.
In actual applications, extension cell can be defined as：By comma in extended area, " or [[...]]
Monoblock ASN.1 of segmentation defines and potentially includes multiple single ASN.1 cells inside cell, [[...]].When
When ASN.1 cell is extension cell, execution step S303；Otherwise judge ASN.1 cell as extension
Sub- cell in cell, execution step S306.
Step S303, judges whether ASN.1 cell is lower row cell.When ASN.1 cell is lower row cell
When, execution step S304；Otherwise, it is determined that ASN.1 cell is upstream cells, execution step S305.
Step S304, skips the corresponding decoded information bit of ASN.1 cell.
In embodiments of the present invention, because LTE MTC terminal protocol stack does not need whole extension letter
Unit, therefore, the code variables of whole extension cell all need not generate, therefore need not generate extension cell
Decoding functions, only need to generate and skip this extension cell institute according to the definition of ASN.1 extension cell
The code of the information bit taking.
Step S305, forbids ASN.1 coding for information element is operated.
In embodiments of the present invention, when extension cell is upstream cells, need not be for this extension letter
Unit generates corresponding coding function that is to say, that need not operate to ASN.1 coding for information element.
In an embodiment of the present invention, whole extended area can include multiple extensions, whole expansion area
Domain can preset one bitmap (bitmap) of generation in an encoding process, and each bit position exists one-to-one
Extension cell.When the value of bit position is 0, represent that certain extension cell does not exist, only need to generate this
Extension cell corresponding bitmap position is 0 code, thus realizing ASN.1 need not be believed
Unit performs the encoding operation.
Step S306, judges whether the sub- cell in extension cell is lower row cell.
In embodiments of the present invention, when the sub- cell in extension cell is lower row cell, execution step
S307；Otherwise, it is determined that the sub- cell in extension cell is upstream cells, execution step S308.
Step S307, skips the corresponding decoded information bit of sub- cell.
Step S308, judges whether the affiliated type of sub- cell is essential.
When the affiliated type of group cell is essential, execution step S309；Otherwise, it is determined that the affiliated class of sub- cell
Type is optional, execution step S310.
Step S309, antithetical phrase coding for information element operates.
Step S310, forbids that antithetical phrase coding for information element operates.
In embodiments of the present invention, from the foregoing it can be that can pre-build and LTE MTC terminal association
View stack incoherent ASN.1 cell information list.Can be successively in ASN.1 cell information list
ASN.1 cell is judged, when the definition position of the ASN.1 cell in ASN.1 cell information list is
During root area, execution step S201～step S206；ASN.1 cell in ASN.1 cell information list
Definition position be expansion area when, execution step S301～step S310.
With reference to Fig. 4, embodiments provide a kind of terminal protocol stack cell processing meanss 40, described
Cell is abstract syntax notation one cell, including：Acquiring unit 401, discarding unit 402 and encoding operation
Judging unit 403, wherein：
Acquiring unit 401, for obtaining in described terminal protocol stack incoherent cell, institute with described terminal
Stating the incoherent cell of terminal is the unwanted cell of described terminal；
Discarding unit 402, for when described incoherent cell is lower row cell, by described lower row cell
Corresponding decoded result abandons；
Encoding operation judging unit 403, for when described incoherent cell is upstream cells, obtaining institute
State the affiliated type of upstream cells, and the affiliated type according to described upstream cells, judge whether to execute volume
Code operation.
In being embodied as, described encoding operation judging unit 403 can be used for：When described upstream cells
Affiliated type be essential cell when, to described upstream cells execute encoding operation；When described upstream cells
Affiliated type be optional cell when, forbid to described upstream cells execute encoding operation.
In being embodied as, the definition position of described incoherent cell can include：Root area and expansion area.
In being embodied as, when the definition position of described cell is expansion area, described cell can include：
Extension cell, the sub- cell in extension cell.
In being embodied as, described encoding operation judging unit 403 can be used for：When described cell is to expand
Exhibition item cell, and when described extension cell is upstream cells, forbid executing volume to described extension cell
Code operation.
In being embodied as, when the sub- cell that described cell is in extension cell, described encoding operation
Judging unit 403 can be used for：When the affiliated type of described sub- cell is essential cell, to described son
Cell executes encoding operation；When the affiliated type of described sub- cell is optional cell, forbid to described son
Cell executes encoding operation.
One of ordinary skill in the art will appreciate that all or part step in the various methods of above-described embodiment
Suddenly the program that can be by complete come the hardware to instruct correlation, and this program can be stored in a computer can
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (12)
1. a kind of terminal protocol stack cell processing method, described cell is abstract syntax notation one cell, and its feature exists
In methods described includes：
Obtain in described terminal protocol stack the incoherent cell with described terminal, the incoherent cell of described terminal is
The unwanted cell of described terminal；
When described incoherent cell is lower row cell, by corresponding for described lower row cell decoded result discarding；
When described incoherent cell is upstream cells, obtain the affiliated type of described upstream cells, and according to
The affiliated type of described upstream cells, judges whether to execute encoding operation.
2. terminal protocol stack cell processing method as claimed in claim 1 it is characterised in that described according to institute
State the affiliated type of upstream cells, judge whether to execute encoding operation, including：
When the affiliated type of described upstream cells is essential cell, encoding operation is executed to described upstream cells；
When the affiliated type of described upstream cells is optional cell, forbid to described upstream cells execution coding behaviour
Make.
3. terminal protocol stack cell processing method as claimed in claim 2 is it is characterised in that described uncorrelated
The definition position of cell include：Root area and expansion area.
4. terminal protocol stack cell processing method as claimed in claim 3 is it is characterised in that work as described cell
Definition position be expansion area when, described cell includes：Extension cell, the son letter in extension cell
Unit.
5. terminal protocol stack cell processing method as claimed in claim 4 is it is characterised in that work as described cell
For extension cell, and when described extension cell is upstream cells, forbid described extension cell is held
Row encoding operation.
6. terminal protocol stack cell processing method as claimed in claim 4 is it is characterised in that work as described cell
During for sub- cell in extension cell, the described affiliated type according to described upstream cells, judge whether
Execution encoding operation, including：
When the affiliated type of described sub- cell is essential cell, encoding operation is executed to described sub- cell；
When the affiliated type of described sub- cell is optional cell, forbid executing encoding operation to described sub- cell.
7. a kind of terminal protocol stack cell processing meanss, described cell is abstract syntax notation one cell, and its feature exists
In described device includes：
Acquiring unit, for obtaining in described terminal protocol stack incoherent cell, described terminal with described terminal
Incoherent cell is the unwanted cell of described terminal；
Discarding unit, for when described incoherent cell be lower row cell when, will be corresponding for described lower row cell
Decoded result abandons；
Encoding operation judging unit, for when described incoherent cell is upstream cells, obtaining described up
The affiliated type of cell, and the affiliated type according to described upstream cells, judge whether to execute encoding operation.
8. terminal protocol stack cell processing meanss as claimed in claim 7 are it is characterised in that described coding is grasped
It is used for as judging unit：When the affiliated type of described upstream cells is essential cell, to described up letter
Unit's execution encoding operation；When the affiliated type of described upstream cells is optional cell, forbid on described
Row cell executes encoding operation.
9. terminal protocol stack cell processing meanss as claimed in claim 8 are it is characterised in that described uncorrelated
The definition position of cell include：Root area and expansion area.
10. terminal protocol stack cell processing meanss as claimed in claim 9 are it is characterised in that work as described cell
Definition position be expansion area when, described cell includes：Extension cell, the son letter in extension cell
Unit.
11. terminal protocol stack cell processing meanss as claimed in claim 10 are it is characterised in that described coding
Operation judging unit is used for：When described cell is extension cell, and described extension cell is up letter
When first, forbid executing encoding operation to described extension cell.
12. terminal protocol stack cell processing meanss as claimed in claim 10 are it is characterised in that work as described letter
When unit is the sub- cell in extension cell, described encoding operation judging unit is used for：
When the affiliated type of described sub- cell is essential cell, encoding operation is executed to described sub- cell；
When the affiliated type of described sub- cell is optional cell, forbid executing encoding operation to described sub- cell.
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| CN101119173A (en) * | 2007-08-30 | 2008-02-06 | 中兴通讯股份有限公司 | Coding-decoding method for third layer message of time-division synchronous CDMA system |
| US20130324138A1 (en) * | 2012-05-31 | 2013-12-05 | Mediatek Inc. | Method and apparatus for performing channel coding type control |
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| CN1581847A (en) * | 2003-08-12 | 2005-02-16 | 华为技术有限公司 | Method and system for realizing data-message transmission |
| CN101111064A (en) * | 2006-07-21 | 2008-01-23 | 华为技术有限公司 | Method and apparatus for processing wireless links establishment request |
| CN101119173A (en) * | 2007-08-30 | 2008-02-06 | 中兴通讯股份有限公司 | Coding-decoding method for third layer message of time-division synchronous CDMA system |
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