CN109121163A - A kind of SDAP layer replay shooting method based on SDAP PDU length - Google Patents
A kind of SDAP layer replay shooting method based on SDAP PDU length Download PDFInfo
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- CN109121163A CN109121163A CN201811185733.1A CN201811185733A CN109121163A CN 109121163 A CN109121163 A CN 109121163A CN 201811185733 A CN201811185733 A CN 201811185733A CN 109121163 A CN109121163 A CN 109121163A
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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
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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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
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of SDAP layer replay shooting method based on SDAP PDU length, belongs to field of communication technology, solves the problems, such as that not can guarantee upstream data receiving end in the prior art is properly received.This method is applied to network side；Include the following steps: that network side RRC sends RRC to terminal side RRC and reconfigures signaling, is reconfigured so that terminal side reconfigures signaling according to RRC, and generate to reconfigure and complete signaling；Network side RRC receives reconfiguring for terminal side RRC feedback and completes signaling, and the completion signaling content that reconfigures includes at least: SDAP PDU length field, RRC reconfigure signaling in the time point StartPoint for eating dishes without rice or wine to be properly received；Network side RRC starting remaps, and SDAP PDU is sent to terminal side RRC, so that terminal side is confirmed whether to receive correct SDAP PDU according to the SDAP PDU length field of StartPoint and storage.This method can guarantee that terminal side RRC is properly received SDAP PDU, realize the high reliability transmitting-receiving of remapping information, reduce development cost, while ensuring the perfect of remapping procedures.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of SDAP layer sides of remapping based on SDAP PDU length
Method.
Background technique
New data processing protocol sublayers-- SDAP (Service Discovery Application is introduced in 5G
Profile, service discovery application specification) protocol sublayers.SDAP protocol sublayers are substantially carried out QoS flow (Quality
OfService, service quality) and DRB mapping function.
When the mapping relations of QoS flow to DRB (Data radio Bearer, Data Radio Bearer) change,
Such as: QoS flow is mapped on DRB0 when establishing, and is needed the method by remapping, is mapped on DRB1.The tool remapped
There are two types of body implementation is current: being configured by signaling；By way of reflection mapping voluntarily by QoS flow data surface
It determines.
The SDAP of 5G proposes the demand of remapping (remapping), how to complete entire remapping process, at present
Also under discussion, many producers propose to be increased agreement in SDAP PDU (Protocol Data Unit, protocol Data Unit)
Add Endmark (a kind of mark of special end of data), to notify SDAP that the data on the DRB of source have been successfully transmitted
Finish, received data are exactly the data packet of normal sequence on target DRB.
The above-mentioned mode for sending Endmark for upstream data packet has the following problems: sending how many times Endmark ability
Ensure that receiving end is properly received；If only sending an Endmark, transmission has failed how to handle.It is in the prior art
Other schemes not can guarantee yet upstream data can receiving end be properly received.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of SDAP layer replay shooting method based on SDAP PDU length,
It is properly received to solve the problems, such as that the prior art not can guarantee upstream data receiving end.
The purpose of the present invention is mainly achieved through the following technical solutions:
In the first embodiment of the present invention, a kind of SDAP layer side of remapping based on SDAP PDU length is disclosed
Method is applied to network side；Include the following steps:
Network side RRC sends RRC to terminal side RRC and reconfigures signaling, so that the terminal side is reconfigured according to the RRC
Signaling is reconfigured, and is generated RRC and reconfigured and complete signaling；
The network side RRC receives the reconfiguring for terminal side RRC feedback and completes signaling, and the RRC reconfigures completion
Signaling content includes at least: SDAP PDU length field, the RRC reconfigure signaling at the time point for eating dishes without rice or wine to be properly received
StartPoint；
The network side RRC starting remaps, and SDAP PDU is sent to the terminal side RRC, so as to the terminal lateral root
It is confirmed whether to receive correct SDAP PDU according to the SDAP PDU length field of the StartPoint and storage.
On the basis of above scheme, the present invention has also done following improvement:
Further, the RRC is reconfigured in signaling comprising new QoS Flow relocation information.
In second embodiment of the present invention, a kind of SDAP layer side of remapping based on SDAP PDU length is disclosed
Method is applied to terminal side；Include the following steps:
The RRC that terminal side RRC receives and parses through network side RRC transmission reconfigures signaling, records the RRC and reconfigures signaling
In the time point StartPoint for eating dishes without rice or wine to be properly received, and signaling is reconfigured according to RRC and obtains SDAP PDU length field；
Signaling is reconfigured using RRC to be reconfigured, after the completion of reconfiguring, RRC is generated and reconfigures and completes signaling, and by institute
State RRC reconfigure complete signaling be sent to the network side RRC, so as to network side according to the RRC reconfigure complete signaling open
It is dynamic to remap；
The terminal side receives the SDAP PDU that the network side is sent, and the SDAP stored according to terminal side RRC
PDU length field, the StartPoint are confirmed whether to receive correct SDAP PDU.
On the basis of above scheme, the present invention has also done following improvement:
Further, the RRC reconfigures completion signaling content and includes at least: SDAP PDU length field, RRC reconfiguration
Confidence is enabled in the time point StartPoint for eating dishes without rice or wine to be properly received.
Further, the SDAP PDU length field stored according to terminal side RRC, StartPoint confirmation
It receives correct SDAP PDU and specifically executes following operation:
The terminal side RRC receives the SDAP PDU, and when detecting the StartPoint, start recording is received
The SDAP PDU length, after finishing receiving, by the SDAP PDU total length received and the SDAP PDU length field
It is compared, if unanimously, showing that the SDAP PDU is correctly received；If inconsistent, show that the SDAP PDU is not correct
It receives.
Further, it is described signaling reconfigured according to RRC obtain SDAP PDU length field include:
Signaling and Resource Management Algorithm are reconfigured according to RRC, obtains SDAP PDU length field.
In third embodiment of the present invention, a kind of SDAP layer side of remapping based on SDAP PDU length is disclosed
Method, for the interaction of network side and terminal side, the method comprises the following steps:
Network side RRC sends RRC to terminal side RRC and reconfigures signaling；
The terminal side RRC receives and parses through the RRC and reconfigures signaling, records the RRC and reconfigures signaling and is eating dishes without rice or wine
The time point StartPoint of successful reception, and signaling is reconfigured according to RRC and obtains SDAP PDU length field；
Signaling is reconfigured using RRC to be reconfigured, after the completion of reconfiguring, RRC is generated and reconfigures and completes signaling, and by institute
State RRC reconfigure complete signaling be sent to the network side RRC, so as to network side according to the RRC reconfigure complete signaling open
It is dynamic to remap；
The network side RRC reception RRC, which is reconfigured, completes signaling, and starting remaps, and sends to the terminal side RRC
SDAP PDU；
The terminal side RRC receives the SDAP PDU, and the SDAP PDU length word stored according to terminal side RRC
Section, the StartPoint, confirmation receive correct SDAP PDU.
On the basis of above scheme, the present invention has also done following improvement:
The RRC reconfigures completion signaling content and includes at least: SDAP PDU length field, the RRC reconfigure signaling
In the time point StartPoint for eating dishes without rice or wine to be properly received.
Further, the SDAP PDU length field stored according to terminal side RRC, StartPoint confirmation
It receives correct SDAP PDU and specifically executes following operation:
The terminal side RRC that states receives the SDAP PDU, and when detecting the StartPoint, start recording is received
The SDAP PDU length arrived, after finishing receiving, by the SDAP PDU total length received and the SDAP PDU length word
Section is compared, if unanimously, showing that the SDAP PDU is correctly received；If inconsistent, show the SDAP PDU not by just
Really receive.
Further, the RRC is reconfigured in signaling comprising new QoS Flow relocation information.
The present invention has the beneficial effect that:
SDAP layer replay shooting method provided by the invention based on SDAP PDU length, by utilizing existing network side
RRC and terminal side RRC communication link carry out the verifying of remapping information reliability, guarantee that terminal side RRC is properly received SDAP
PDU realizes the high reliability transmitting-receiving of remapping information, reduces development cost, while ensuring the perfect of remapping procedures.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is SDAP configuration diagram；
Fig. 2 is that the SDAP layer based on SDAP PDU length remaps method schematic diagram.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
Since RRC (Radio Resource Control, wireless heterogeneous networks) signaling is all in SRB (Signal radio
Bearer, Signaling Radio Bearer) on transmit, SRB is RLC (Radio Link Control, wireless chain control layer agreement)
AM mode (Acknowledgement Mode, affirmation mode), have in AM ARQ (Automatic Repeat-reQuest,
ARQ) retransmission mechanism is not in that signaling is lost, so the signaling of RRC is eating dishes without rice or wine to be high reliability, by L2 (Layer 2:
The affirmation mode of layer 2) can ensure that each signaling can be correctly received.
Fig. 1 is to show SDAP sublayer from the angle of protocol architecture；SDAP sublayer is configured by RRC signaling,
SDAP sublayer is responsible for for QoS flow being mapped on corresponding DRB；One or more QoS flow may map on the same DRB,
One QoS flow can only be mapped on a DRB.
In the method for the invention, remapping for SDAP reconfigures signaling (RRC Connection by RRC
Reconfiguration it) directly configures, RRC, which is reconfigured, completes signaling (RRC Connection Reconfiguration
Complete) the response signaling as equity reconfigures the length for completing that SDAP PDU is carried in signaling in RRC.
The first embodiment of the present invention provides a kind of SDAP layer weight based on SDAP PDU length applied to network side
Mapping method includes the following steps:
Step S1: network side RRC, which sends RRC to terminal side RRC, reconfigures signaling, so that the terminal side is according to
RRC reconfigures signaling and is reconfigured, and generates RRC and reconfigure and complete signaling；
Step S2: the network side RRC, which receives the reconfiguring for terminal side RRC feedback, completes signaling, the RRC reconfiguration
Set completion signaling content to include at least: SDAP PDU length field, the RRC reconfigure signaling in the time for eating dishes without rice or wine to be properly received
Point StartPoint；
Step S3: the network side RRC starting remaps, and SDAPPDU is sent to the terminal side RRC, so as to the end
End side is confirmed whether to receive correct SDAP PDU according to the SDAP PDU length field of the StartPoint and storage.
Wherein, the RRC is reconfigured in signaling comprising new QoS Flow relocation information.
The second embodiment of the present invention provides a kind of SDAP layer weight based on SDAP PDU length applied to terminal side
Mapping method includes the following steps:
Step S1: the terminal side RRC RRC for receiving and parsing through network side RRC transmission reconfigures signaling, records the RRC weight
Configuration signal reconfigures signaling according to RRC and obtains SDAP PDU length in the time point StartPoint for eating dishes without rice or wine to be properly received
Field；
Step S2: reconfiguring signaling using RRC and reconfigured, and after the completion of reconfiguring, generates RRC and reconfigures completion letter
It enables, and the completion signaling that reconfigures is sent to the network side RRC, so that network side reconfigures completion according to the RRC
Signaling starting remaps；The RRC reconfigures completion signaling content and includes at least: SDAP PDU length field, RRC reconfiguration
Confidence is enabled in the time point StartPoint for eating dishes without rice or wine to be properly received.
Step S3: the terminal side receives the SDAP PDU that the network side is sent, and stored according to terminal side RRC
SDAP PDU length field, the StartPoint is confirmed whether to receive correct SDAP PDU.
Step S3 further executes following operation:
The terminal side RRC receives the SDAP PDU, and when detecting the StartPoint, start recording is received
The SDAP PDU length, after finishing receiving, by the SDAP PDU total length received and the SDAP PDU length field
It is compared, if unanimously, showing that the SDAP PDU is correctly received；If inconsistent, show that the SDAP PDU is not correct
It receives.
Preferably, it is described according to RRC reconfigure signaling obtain SDAP PDU length field include: according to RRC be reconfigured confidence
Order and Resource Management Algorithm, obtain SDAP PDU length field.
Third embodiment of the present invention discloses a kind of SDAP layer replay shooting method based on SDAP PDU length, is used for
The interaction for realizing network side RRC and terminal side RRC, as shown in Fig. 2, including the following steps:
Step S1: network side is when determining that terminal side meets RRC signaling and reconfigures condition, from network side RRC to terminal side
RRC sends RRC and reconfigures signaling (RRC ConnectionReconfiguration)；
The RRC is reconfigured in signaling comprising new QoS Flow relocation information；
When there is following situations, terminal side meets RRC signaling and reconfigures condition:
(1) terminal side information changes, and proposes RRC signaling reconfiguration request to network side, network side receives the request:
1) DRB parameter in terminal side changes；
2) position of present terminal side user changes；
3) there is new business in terminal side；
(2) it is decided in its sole discretion and is reconfigured according to terminal side situation by network side.
Step S2: the terminal side RRC receives and parses through the RRC and reconfigures signaling, records the RRC and reconfigures signaling
In the time point StartPoint for eating dishes without rice or wine to be properly received, beginning mark is packaged using StartPoint as first data in SDAP PDU
Know information；According to Resource Management Algorithm, such as service quality control algolithm, user RB (Radio Bearer, radio bearer) flow
Control algolithm etc. obtains SDAP PDU length field；
Step S3: reconfiguring signaling using RRC and reconfigured, and after the completion of reconfiguring, generation RRC, which is reconfigured, completes signaling
(RRC Connection Reconfiguration Complete), and the RRC reconfigured complete signaling be sent to it is described
Network side RRC；
The RRC reconfigures completion signaling content and includes at least: SDAP PDU length field, the RRC reconfigure signaling
In the time point StartPoint for eating dishes without rice or wine to be properly received；
Step S4: the network side RRC reception RRC, which is reconfigured, completes signaling, and starting remaps, to the terminal side
RRC sends SDAP PDU；
Step S5: the terminal side RRC receives the SDAP PDU, and the SDAP stored according to terminal side RRC
First data packages beginning identification information StartPoint in PDU length field, SDAP PDU, and confirmation receives correct SDAP
PDU。
Wherein, SDAP PDU is the QoS Flow remapped from remapping operation is opened to the number for terminating to need to send
According to packet.
Preferably, step S5 further comprises:
The terminal side RRC receives the SDAP PDU and opens when detecting the origin identification information StartPoint
Begin to record the SDAP PDU length received, after finishing receiving, by the SDAP PDU total length received and the SDAP
PDU length field is compared, if unanimously, showing that the SDAP PDU is correctly received；If inconsistent, show the SDAP
PDU is not correctly received.
SDAP layer replay shooting method provided by the invention based on SDAP PDU length, by utilizing existing network side
RRC and terminal side RRC communication link carry out the verifying of remapping information reliability, guarantee that terminal side RRC is properly received SDAP
PDU realizes the high reliability transmitting-receiving of remapping information, reduces development cost, while ensuring the perfect of remapping procedures.
It will be understood by those skilled in the art that realizing all or part of the process of above-described embodiment method, meter can be passed through
Calculation machine program is completed to instruct relevant hardware, and the program can be stored in computer readable storage medium.Wherein, institute
Stating computer readable storage medium is disk, CD, read-only memory or random access memory etc..
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of SDAP layer replay shooting method based on SDAP PDU length is applied to network side；It is characterised in that it includes as follows
Step:
Network side RRC sends RRC to terminal side RRC and reconfigures signaling, so that the terminal side reconfigures signaling according to the RRC
It is reconfigured, and generates RRC and reconfigure and complete signaling；
The network side RRC receives the reconfiguring for terminal side RRC feedback and completes signaling, and the RRC, which is reconfigured, completes signaling
Content includes at least: SDAP PDU length field, the RRC reconfigure signaling at the time point for eating dishes without rice or wine to be properly received
StartPoint；
The network side RRC starting remaps, and SDAP PDU is sent to the terminal side RRC, so that the terminal side is according to institute
The SDAP PDU length field for stating StartPoint and storage is confirmed whether to receive correct SDAP PDU.
2. the method according to claim 1, wherein the RRC is reconfigured in signaling comprising new QoS Flow
Relocation information.
3. a kind of SDAP layer replay shooting method based on SDAP PDU length is applied to terminal side；It is characterised in that it includes as follows
Step:
The RRC that terminal side RRC receives and parses through network side RRC transmission reconfigures signaling, records the RRC and reconfigures signaling in sky
The time point StartPoint that mouth is properly received, and signaling is reconfigured according to RRC and obtains SDAP PDU length field；
It reconfigures signaling using RRC to be reconfigured, after the completion of reconfiguring, generation RRC, which is reconfigured, completes signaling, and will be described
RRC reconfigures completion signaling and is sent to the network side RRC, completes signaling starting so that network side is reconfigured according to the RRC
It remaps；
The terminal side receives the SDAP PDU that the network side is sent, and the SDAP PDU stored according to terminal side RRC
Length field, the StartPoint are confirmed whether to receive correct SDAP PDU.
4. according to the method described in claim 3, it is characterized in that, the RRC reconfigure complete signaling content include at least:
SDAP PDU length field, the RRC reconfigure signaling in the time point StartPoint for eating dishes without rice or wine to be properly received.
5. the method according to claim 3 or 4, which is characterized in that the SDAP stored according to terminal side RRC
PDU length field, StartPoint confirmation receive correct SDAP PDU and specifically execute following operation:
The terminal side RRC receives the SDAP PDU, when detecting the StartPoint, institute that start recording receives
SDAP PDU length is stated, after finishing receiving, the SDAPPDU total length received and the SDAP PDU length field are compared
Compared with if unanimously, showing that the SDAP PDU is correctly received；If inconsistent, show that the SDAP PDU is not correctly received.
6. according to the method described in claim 4, it is characterized in that, described reconfigure signaling according to RRC and obtain SDAP PDU long
Spending field includes:
Signaling and Resource Management Algorithm are reconfigured according to RRC, obtains SDAP PDU length field.
7. a kind of SDAP layer replay shooting method based on SDAP PDU length, which is characterized in that the method comprises the following steps:
Network side RRC sends RRC to terminal side RRC and reconfigures signaling；
The terminal side RRC receives and parses through the RRC and reconfigures signaling, records the RRC and reconfigures signaling in success of eating dishes without rice or wine
Received time point StartPoint, and signaling is reconfigured according to RRC and obtains SDAP PDU length field；
It reconfigures signaling using RRC to be reconfigured, after the completion of reconfiguring, generation RRC, which is reconfigured, completes signaling, and will be described
RRC reconfigures completion signaling and is sent to the network side RRC, so that network side is remapped according to completion signaling starting is reconfigured；
The network side RRC reception RRC, which is reconfigured, completes signaling, and starting remaps, and sends SDAP to the terminal side RRC
PDU；
The terminal side RRC receives the SDAP PDU, and according to terminal side RRC stored SDAP PDU length field,
The StartPoint, confirmation receive correct SDAPPDU.
8. being included at least the method according to the description of claim 7 is characterized in that the RRC reconfigures completion signaling content:
SDAP PDU length field, the RRC reconfigure signaling in the time point StartPoint for eating dishes without rice or wine to be properly received.
9. method according to claim 7 or 8, which is characterized in that the SDAP stored according to terminal side RRC
PDU length field, StartPoint confirmation receive correct SDAP PDU and specifically execute following operation:
The terminal side RRC that states receives the SDAP PDU, when detecting the StartPoint, what start recording received
The SDAP PDU length, after finishing receiving, by the SDAP PDU total length received and the SDAP PDU length field into
Row compares, if unanimously, showing that the SDAP PDU is correctly received；If inconsistent, show that the SDAP PDU is not connect correctly
It receives.
10. the method according to the description of claim 7 is characterized in that the RRC is reconfigured in signaling comprising new QoS Flow
Relocation information.
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| CN111465053A (en) * | 2019-01-21 | 2020-07-28 | 中国移动通信有限公司研究院 | Triggering method of reflection mapping and network equipment |
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| CN109121163B (en) | 2021-06-01 |
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