CN109687944A - Packet data convergence protocol data transmission method and device - Google Patents
Packet data convergence protocol data transmission method and device Download PDFInfo
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- CN109687944A CN109687944A CN201710969160.0A CN201710969160A CN109687944A CN 109687944 A CN109687944 A CN 109687944A CN 201710969160 A CN201710969160 A CN 201710969160A CN 109687944 A CN109687944 A CN 109687944A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
Abstract
The disclosure proposes a kind of packet data convergence protocol data transmission method and device, is related to wireless communication technology field.A kind of PDCP layer data transmission method of the disclosure includes: to be determined to repeat to transmit by MAC CE control activation or deactivation PDCP according to channel condition；Transmission MAC CE is repeated by multichannel.By such method, transmission MAC CE can be repeated and promotes its reliability to reduce the propagation delay time of MAC CE, to improve the fast-changing ability that PDCP repeats the activation transmitted and deactivation follows channel, transmission state.
Description
Technical field
This disclosure relates to field wireless communication technology field, especially a kind of packet data convergence protocol transmission side data
Method and device.
Background technique
URLLC (Ultra Reliable&Low Latency Communication, high reliable communication) business is as 5G
(The 5th Generation Mobile Communication Technology, the 5th third-generation mobile communication technology) three great causes
Be engaged in one of scene, be capable of providing the ultralow end-to-end time delay of 1ms and close to 100% reliability.It is end-to-end by taking time delay as an example
Time delay is summed it up by the time delay on multistage path, is only all unable to satisfy the ultimate attainment of 1ms by a certain local time delay of single optimization
Delay requirement, therefore the realization of 5G ultralow time delay needs a series of technology of combinations.
In the design of 5G wireless network architecture higher-layer protocols, in order to further decrease time delay, enhancing reliability, 3GPP's
Working group RAN2 (being responsible for wireless 2 layers, 3 layer protocols) proposes one kind in PDCP (Packet Data Convergence
Protocol, Packet Data Convergence Protocol) layer method from redundant transmission data to two RLC entities that carry out, referred to herein as
PDCP repeats transmission (PDCP duplication).
Currently, RAN2 is by draw a conclusion:
1, PDPC duplication can be used for SRB (Signal Resource Bearer, the letter between terminal and base station
Enable carrying) and DRB (Data Resource Bearer, the Deta bearer between terminal and base station).
2, PDCP duplication can be used for DC (Dual Connectivity, dual link) and CA (Carrier
Aggregation, carrier wave polymerization) two kinds of basic scenes.
3, whether may be used by RRC (Radio Resource Control, wireless heterogeneous networks) signal deployment SRB/DRB
To support PDCP duplication.
4, it for DRB, is moved using MAC CE (MAC Control Element, MAC layer control unit)
State controls PDCP duplication activation/deactivation.
5, for SRB, then RRC signaling control PDCP duplication activation/deactivation is directlyed adopt.
Summary of the invention
Inventors have found that time delay, the reliability of MAC CE will be in shadow to a certain degree in the case where PDCP repeats transmission application scene
The performance of URLLC business is rung, prevent activation and deactivation that PDCP repeats transmission are from timely following channel, transmission state
Quickly variation, and the reliability and time delay of the MAC CE in the design of existing protocol stack repeat transmission to PDCP and cause limitation.
One purpose of the disclosure is to improve that PDCP repeats the activation of transmission and deactivation follows channel, transmission state
Fast-changing ability.
According to one aspect of the disclosure, a kind of PDCP layer data transmission method is proposed, comprising: determine according to channel condition
Activation, which is controlled, by MAC CE or deactivates PDCP repeats to transmit；Transmission MAC CE is repeated by multichannel.
Optionally, repeating transmission MAC CE by multichannel includes: under carrier aggregation scene, in the different carrier waves of polymerization
Repeat transmission MAC CE；Under dual link scene, transmission MAC CE is repeated on the different chain roads of dual link.
Optionally, it under carrier aggregation scene, by MAC CE control activation or is deactivated corresponding according to channel condition
If the channel condition that PDCP repeats at least one carrier wave in the carrier wave that transmission includes: polymerization reaches predetermined threshold, deactivate
PDCP repeats to transmit；If the channel condition of the carrier wave of polymerization is not up to predetermined threshold, PDCP is activated to repeat to transmit.
Optionally, it under dual link scene, by MAC CE control activation or is deactivated corresponding according to channel condition
If the channel condition that PDCP repeats at least one link in the link that transmission includes: dual link reaches predetermined threshold, deactivate
PDCP living repeats to transmit；If the channel condition of the link of dual link is not up to predetermined threshold, PDCP is activated to repeat to transmit.
Optionally, further includes: under dual link scene, the base station for sending the MAC CE of repetition transmission passes through interaction between base station
Interactive interfacing match MAC CE, with guarantee repeat transmission MAC CE it is consistent.
Optionally, further includes: after receiving end receives MAC CE, judging whether to have been received by has same sequence number with MAC CE
MAC CE；If having been received by, duplicate MAC CE is abandoned.
By such method, transmission MAC CE can be repeated, to reduce the propagation delay time of MAC CE, it is reliable to promote it
Property, to improve the fast-changing ability that PDCP repeats the activation transmitted and deactivation follows channel, transmission state.
According to one aspect of the disclosure, a kind of PDCP layer data transmitting device is proposed, comprising: PDCP repeats transmission control
Unit, for determining that activating or deactivate PDCP by MAC CE control repeats to transmit according to channel condition；MAC CE sends single
Member, for repeating transmission MAC CE by multichannel.
Optionally, MAC CE transmission unit is used for: under carrier aggregation scene, repeating to transmit in the different carrier waves of polymerization
MAC CE；Under dual link scene, transmission MAC CE is repeated on the different chain roads of dual link.
Optionally, further includes: matching unit, for sending the base station for repeating the MAC CE of transmission under dual link scene
MAC CE is matched by the interactive interfacing of interaction between base station, to guarantee that the MAC CE's for repeating to transmit is consistent.
Optionally, further includes: receiving end screening unit, for after the receiving end of MAC CE receives MAC CE, judgement is
It is no to have been received by the MAC CE that there is same sequence number with MAC CE；If having been received by, duplicate MAC CE is abandoned.
According to the another aspect of the disclosure, a kind of PDCP layer data transmitting device is proposed, comprising: memory；And coupling
It is connected to the processor of memory, processor is configured as based on being stored in the instruction execution of memory above any one PDCP
Layer data transmission method.
Such device can repeat transmission MAC CE and promote its reliability to reduce the propagation delay time of MAC CE, from
And improve the fast-changing ability that PDCP repeats the activation transmitted and deactivation follows channel, transmission state.
According to another aspect of the disclosure, a kind of computer readable storage medium is proposed, be stored thereon with computer journey
The step of sequence instructs, and above any one PDCP layer data transmission method is realized when which is executed by processor.
Such computer readable storage medium can repeat transmission MAC CE, so that the propagation delay time of MAC CE is reduced,
Promote its reliability, thus improve PDCP repeat transmission activation and deactivation follow channel, transmission state it is fast-changing
Ability.
Detailed description of the invention
Attached drawing described herein is used to provide further understanding of the disclosure, constitutes a part of this disclosure, this public affairs
The illustrative embodiments and their description opened do not constitute the improper restriction to the disclosure for explaining the disclosure.In the accompanying drawings:
Fig. 1 is the flow chart of PDCP layer data transmission method one embodiment of the disclosure.
Fig. 2A is the flow chart of another embodiment of the PDCP layer data transmission method of the disclosure.
Fig. 2 B is the schematic diagram of one embodiment of the PDCP layer data transmission method of the disclosure.
Fig. 3 A is the flow chart of another embodiment of the PDCP layer data transmission method of the disclosure.
Fig. 3 B is the schematic diagram of another embodiment of the PDCP layer data transmission method of the disclosure.
Fig. 4 is the schematic diagram of one embodiment of the PDCP layer data transmitting device of the disclosure.
Fig. 5 is the schematic diagram of another embodiment of the PDCP layer data transmitting device of the disclosure.
Fig. 6 is the schematic diagram of another embodiment of the PDCP layer data transmitting device of the disclosure.
Fig. 7 is the schematic diagram of the further embodiment of the PDCP layer data transmitting device of the disclosure.
Specific embodiment
Below by drawings and examples, the technical solution of the disclosure is described in further detail.
The flow chart of PDCP layer data transmission method one embodiment of the disclosure is as shown in Figure 1.
In a step 101, it is determined according to channel condition and repeats to transmit by MAC CE control activation or deactivation PDCP.?
In one embodiment, channel condition can be compared with predetermined threshold, the channel condition of at least one channel reaches if it exists
Predetermined threshold then repeats to transmit without carrying out PDCP；If the channel condition of channel is unable to reach predetermined threshold, need to carry out
PDCP repeats to transmit.Compare the current PDCP that whether is in and repeat transmission state, when needing to change PDCP repetition transmission state, then
Activation, which is controlled, by MAC CE or deactivates PDCP repeats to transmit.In one embodiment, channel condition may include SINR
(Signal to Interference plus Noise Ratio, Signal to Interference plus Noise Ratio), HARQ (Hybrid
Automatic Repeat Request, hybrid automatic repeat-request) performance etc..
In a step 102, transmission MAC CE is repeated.In one embodiment, it under carrier aggregation scene, repeats to transmit
MAC CE refers to repeating to transmit MAC CE in the different carrier waves of polymerization.In another embodiment, under dual link scene, weight
Transmission MAC CE refers to repeating transmission MAC CE on the different chain roads of dual link again.
By such method, transmission MAC CE can be repeated, to reduce the propagation delay time of MAC CE, it is reliable to promote it
Property, to improve the fast-changing ability that PDCP repeats the activation transmitted and deactivation follows channel, transmission state.
The flow chart of another embodiment of the PDCP layer data transmission method of the disclosure is as shown in Figure 2 A.
In step 201, judge that the channel condition in the carrier wave of polymerization with the presence or absence of at least one carrier wave reaches predetermined threshold
Value.The channel condition of at least one carrier wave reaches predetermined threshold if it exists, thens follow the steps 202；If the channel item of all carrier waves
Part is not up to predetermined threshold, thens follow the steps 204.
In step 202, whether judgement is current in PDCP repetition transmission state.If repeating transmission state in PDCP,
Then follow the steps 203；If being not at PDCP repeats transmission state, terminate.
In step 203, determine that deactivating PDCP repeats to transmit, and generates control and deactivates the MAC that PDCP repeats transmission
CE。
In step 204, whether judgement is current in PDCP repetition transmission state.If repeating transmission state in PDCP,
Then terminate；If being not at PDCP repeats transmission state, 205 are thened follow the steps.
In step 205, it determines that activation PDCP repeats to transmit, generates the MAC CE that control activation PDCP repeats transmission.
In step 206, it repeats to transmit MAC CE in the different carrier waves of polymerization.
In one embodiment, as shown in Figure 2 B, including PDCP layers, rlc layer and MAC layer, MAC layer is by identical carrier wave
MAC CE i passes through the carrier wave 1,2 mutually polymerizeing and repeats to transmit, wherein i is the serial number of MAC CE, so that receiving end is received determining
Duplicate MAC CE is abandoned when to identical MAC CE, reduces unnecessary control operation, reduces the burden of equipment, raising system
Stability.
By such method, it under carrier aggregation scene, can repeat to transmit according to channel situation and current PDCP
State determine whether execute PDCP repeat transmission activation or deactivating operation, and then to execute PDCP repeat transmission activation or
The MAC CE of deactivating operation, which is executed, to be repeated to transmit, to reduce the propagation delay time of MAC CE, is promoted its reliability, is improved
The activation that PDCP repeats transmission follows the fast-changing ability of channel, transmission state with deactivation.
The flow chart of another embodiment of the PDCP layer data transmission method of the disclosure is as shown in Figure 3A.
In step 301, judge that the channel condition in the link of dual link with the presence or absence of at least one link reaches predetermined
Threshold value.The channel condition of at least one link reaches predetermined threshold if it exists, thens follow the steps 302；If the channel of all links
Condition is not up to predetermined threshold, thens follow the steps 304.
In step 302, whether judgement is current in PDCP repetition transmission state.If repeating transmission state in PDCP,
Then follow the steps 303；If being not at PDCP repeats transmission state, terminate.
In step 303, determine that deactivating PDCP repeats to transmit, and generates control and deactivates the MAC that PDCP repeats transmission
CE。
In step 304, whether judgement is current in PDCP repetition transmission state.If repeating transmission state in PDCP,
Then terminate；If being not at PDCP repeats transmission state, 305 are thened follow the steps.
In step 305, it determines that activation PDCP repeats to transmit, generates the MAC CE that control activation PDCP repeats transmission.
Within step 306, the base station for sending the MAC CE of repetition transmission matches MAC by the interactive interfacing of interaction between base station
CE, to guarantee that the MAC CE's for repeating to transmit is consistent.
In step 307, transmission MAC CE is repeated on the different chain roads of dual link.
In one embodiment, as shown in Figure 3B, including PDCP layers, rlc layer and MAC layer, opposite MAC layer pass through transverse direction
Interface Xn carries out the matching of MAC CE i message to guarantee that the two is identical, and identical carrier wave MAC CE i passes through both links and repeats
Transmission, wherein i is the serial number of MAC CE, so that duplicate MAC CE is abandoned when determination receives identical MAC CE in receiving end,
Reduce unnecessary control operation.
By such method, under dual link scene, transmission shape can be repeated according to channel situation and current PDCP
State determines whether to execute activation or deactivating operation that PDCP repeats transmission, and then to the activation for executing PDCP repetition transmission or goes
The MAC CE of activation operation, which is executed, to be repeated to transmit, to reduce the propagation delay time of MAC CE, is promoted its reliability, is improved
The activation that PDCP repeats transmission follows the fast-changing ability of channel, transmission state with deactivation.
In one embodiment, it can be determined to execute activation or deactivating operation by master base station, by X2 interface to prothetic group
It stands and sends this information, subsequent master base station sends this MAC CE with prothetic group station to guarantee that the MAC CE for repeating to transmit is consistent.
By such method, it can be realized and actively determine that PDCP repeats the activation of transmission, deactivating operation by master base station, ensure that master
The core control ability of base station.
In another embodiment, activation/deactivation can also be determined by prothetic group station, then generates MAC CE and connect by X2
Mouth sends this information to prothetic group station, and master base station will have agreed to or dissenting decision feeds back to master base station, if agreeing to, master base station
This MAC CE is sent with prothetic group station, to can also guarantee that the MAC CE for repeating to transmit is consistent.By such method, energy
Enough realize actively determines that PDCP repeats the activation of transmission, deactivating operation by the initiation of prothetic group station, master base station, is guaranteeing master base station
On the basis of core control ability, the message generation of master base station and sharing for event discovery feature are realized, is conducive to improve and hold
Line efficiency improves the intelligence degree of the whole network.
The schematic diagram of one embodiment of the PDCP layer data transmitting device of the disclosure is as shown in Figure 4.PDCP repeats to transmit
Control unit 401 can determine according to channel condition and repeat to transmit by MAC CE control activation or deactivation PDCP.At one
In embodiment, channel condition can be compared with predetermined threshold, the channel condition of at least one channel reaches predetermined if it exists
Threshold value then repeats to transmit without carrying out PDCP；If the channel condition of channel is unable to reach predetermined threshold, need to carry out PDCP
It repeats to transmit.Current whether then pass through in PDCP repetition transmission state when needing to change PDCP repetition transmission state compared
MAC CE control activation deactivates PDCP repetition transmission.In one embodiment, channel condition may include SINR, HARQ
Energy is equal.MAC CE transmission unit 402 can repeat transmission MAC CE.In one embodiment, it under carrier aggregation scene, repeats
Transmission MAC CE refers to repeating to transmit MAC CE in the different carrier waves of polymerization.In another embodiment, in dual link scene
Under, it repeats transmission MAC CE and refers to repeating transmission MAC CE on the different chain roads of dual link.
Such PDCP layer data transmitting device can repeat transmission MAC CE, so that the propagation delay time of MAC CE is reduced,
Promote its reliability, thus improve PDCP repeat transmission activation and deactivation follow channel, transmission state it is fast-changing
Ability.
The schematic diagram of another embodiment of the PDCP layer data transmitting device of the disclosure is as shown in Figure 5.In dual link feelings
Under condition, PDCP repeats transmission control unit 501 and is able to determine whether that executing PDCP repeats transmission activation, deactivating operation, executes
Process can be as shown in Fig. 3 A related embodiment.If it is determined that executing activation, deactivating operation, then matching unit 503 passes through base
The interactive interfacing of interaction matches MAC CE between standing, to guarantee that the MAC CE's for repeating to transmit is consistent.MAC CE transmission unit 502 exists
The different chains road of dual link repeats transmission MAC CE.
Such PDCP layer data transmitting device, can be according to channel situation and current PDCP weight under dual link scene
Multiple transmission state determines whether to execute activation or deactivating operation that PDCP repeats transmission, and then repeats transmission to PDCP is executed
The MAC CE of activation or deactivating operation, which is executed, to be repeated to transmit, to reduce the propagation delay time of MAC CE, promotes its reliability,
Improve the fast-changing ability that PDCP repeats the activation transmitted and deactivation follows channel, transmission state；It can guarantee double
The MAC CE of link transmission is consistent, guarantees the stability of system.
In one embodiment, as shown in figure 5, the PDCP layer data transmitting device of the disclosure can also include that receiving end is sieved
Menu member 504 can identify the serial number of MAC CE, if the MAC CE of the needs is to receive for the first time, be executed according to the MAC CE
Activation deactivates PDCP repetition transmission；If having been received by the MAC CE of identical needs, this MAC CE received is abandoned, is reduced
Unnecessary control operation, reduces the burden of equipment, improves the stability of dual system.
The structural schematic diagram of one embodiment of the PDCP layer data transmitting device of the disclosure is as shown in Figure 6.The PDCP number of plies
It include memory 610 and processor 620 according to transmitting device.Wherein: memory 610 can be disk, flash memory or other any non-
Volatile storage medium.Memory is used to store the instruction in the hereinafter corresponding embodiment of PDCP layer data transmission method.Place
Reason device 620 is coupled to memory 610, can be used as one or more integrated circuits to implement, such as microprocessor or microcontroller
Device.The processor 620 can be realized the activation for improving PDCP repetition transmission and deactivate for executing the instruction stored in memory
The fast-changing ability living for following channel, transmission state.
It in one embodiment, can be as shown in fig. 7, PDCP layer data transmitting device 700 includes memory 710 and place
Manage device 720.Processor 720 is coupled to memory 710 by BUS bus 730.The PDCP layer data transmitting device 700 can be with
External memory 750 is connected to call external data by memory interface 740, can also be connected by network interface 760
It is connected to network or an other computer system (not shown).It no longer describes in detail herein.
In this embodiment, it is instructed by memory stores data, then above-metioned instruction is handled by processor, can be realized
Improve the fast-changing ability that PDCP repeats the activation transmitted and deactivation follows channel, transmission state.
In another embodiment, a kind of computer readable storage medium, is stored thereon with computer program instructions, this refers to
The step of enabling the method realized in PDCP layer data transmission method corresponding embodiment when being executed by processor.Technology in the art
Personnel are it should be appreciated that embodiment of the disclosure can provide as method, apparatus or computer program product.Therefore, the disclosure can be used
The form of complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects.Moreover, the disclosure
Can be used can use non-transient storage medium (packet in the computer that one or more wherein includes computer usable program code
Include but be not limited to magnetic disk storage, CD-ROM, optical memory etc.) on the form of computer program product implemented.
The disclosure is reference according to the method for the embodiment of the present disclosure, the flow chart of equipment (system) and computer program product
And/or block diagram describes.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to
Enable the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate
One machine so that by the instruction that the processor of computer or other programmable data processing devices executes generate for realizing
The device for the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
So far, the disclosure is described in detail.In order to avoid covering the design of the disclosure, it is public that this field institute is not described
The some details known.Those skilled in the art as described above, completely it can be appreciated how implementing technology disclosed herein
Scheme.
Disclosed method and device may be achieved in many ways.For example, can by software, hardware, firmware or
Person's software, hardware, firmware any combination realize disclosed method and device.The step of for the method it is above-mentioned
Sequence is merely to be illustrated, and the step of disclosed method is not limited to sequence described in detail above, unless with other sides
Formula illustrates.In addition, in some embodiments, the disclosure can be also embodied as recording program in the recording medium, these
Program includes for realizing according to the machine readable instructions of disclosed method.Thus, the disclosure also covers storage for executing
According to the recording medium of the program of disclosed method.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the disclosure rather than its limitations；To the greatest extent
Pipe is described in detail the disclosure referring to preferred embodiment, it should be understood by those ordinary skilled in the art that: still
It can modify to the specific embodiment of the disclosure or some technical features can be equivalently replaced；Without departing from this public affairs
The spirit of technical solution is opened, should all be covered in the claimed technical proposal scope of the disclosure.
Claims (12)
1. a kind of Packet Data Convergence Protocol PDCP layer data transmission method, comprising:
It is determined according to channel condition and repeats to transmit by MAC CE control activation or deactivation PDCP；
Transmission media MAC layer control unit MAC CE is repeated by multichannel.
2. according to the method described in claim 1, wherein, described by multichannel, repeatedly transmission MAC CE includes:
Under carrier aggregation scene, repeat to transmit the MAC CE in the different carrier waves of polymerization；
Under dual link scene, repeat to transmit the MAC CE on the different chain roads of dual link.
3. according to the method described in claim 2, wherein, under carrier aggregation scene, it is described passed through according to channel condition it is described
MAC CE control activates or deactivates corresponding PDCP and repeats to transmit
If the channel condition of at least one carrier wave reaches predetermined threshold in the carrier wave of polymerization, deactivates the PDCP and repeat to pass
It is defeated；
If the channel condition of the carrier wave of polymerization is not up to predetermined threshold, the PDCP is activated to repeat to transmit.
4. described to pass through the MAC according to channel condition under dual link scene according to the method described in claim 2, wherein
CE control activates or deactivates corresponding PDCP and repeats to transmit
If the channel condition of at least one link in the link of dual link reaches predetermined threshold, deactivates the PDCP and repeat
Transmission；
If the channel condition of the link of dual link is not up to predetermined threshold, the PDCP is activated to repeat to transmit.
5. according to the method described in claim 2, further include:
Under dual link scene, send described in interactive interfacing matching of the base station for repeating the MAC CE of transmission by interaction between base station
MAC CE, to guarantee that the MAC CE's for repeating to transmit is consistent.
6. according to the method described in claim 1, further include:
After receiving end receives the MAC CE, judge whether to have been received by the MAC CE that there is same sequence number with the MAC CE；
If having been received by, duplicate MAC CE is abandoned.
7. a kind of Packet Data Convergence Protocol PDCP layer data transmitting device, comprising:
PDCP repeats transmission control unit, passes through MAC layer control unit MAC CE for determining according to channel condition
Control activation deactivates PDCP repetition transmission；
MAC CE transmission unit, for repeating transmission MAC CE by multichannel.
8. device according to claim 7, wherein the MAC CE transmission unit is used for:
Under carrier aggregation scene, repeat to transmit the MAC CE in the different carrier waves of polymerization；
Under dual link scene, repeat to transmit the MAC CE on the different chain roads of dual link.
9. device according to claim 8, further includes:
Matching unit is used under dual link scene, and the base station for sending the MAC CE of repetition transmission is connect by interactive between base station
Oral sex mutually matches the MAC CE, to guarantee that the MAC CE's for repeating to transmit is consistent.
10. device according to claim 7, further includes:
Receiving end screening unit, for after the receiving end of MAC CE receives the MAC CE, judge whether to have been received by with it is described
MAC CE has the MAC CE of same sequence number；If having been received by, duplicate MAC CE is abandoned.
11. a kind of Packet Data Convergence Protocol PDCP layer data transmitting device, comprising:
Memory；And
It is coupled to the processor of the memory, the processor is configured to based on the instruction execution for being stored in the memory
Such as method as claimed in any one of claims 1 to 6.
12. a kind of computer readable storage medium, is stored thereon with computer program instructions, real when which is executed by processor
The step of method described in existing claim 1 to 6 any one.
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| CN201710969160.0A CN109687944A (en) | 2017-10-18 | 2017-10-18 | Packet data convergence protocol data transmission method and device |
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