CN107979444A - Method and apparatus for double bounce packet transmission - Google Patents
Method and apparatus for double bounce packet transmission Download PDFInfo
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- CN107979444A CN107979444A CN201610950365.XA CN201610950365A CN107979444A CN 107979444 A CN107979444 A CN 107979444A CN 201610950365 A CN201610950365 A CN 201610950365A CN 107979444 A CN107979444 A CN 107979444A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1874—Buffer management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0097—Relays
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- Mobile Radio Communication Systems (AREA)
Abstract
Embodiment of the disclosure is related to the method and apparatus for double bounce packet transmission.That implements at trunking is used for the method for double bounce packet transmission, including：At wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)：Obtain the second of the double bounce packet transmission status information for jumping RLC transmission；And the status information is sent to the first of the double bounce packet transmission sending device for jumping RLC transmission, jump RLC transmission to be based on status information control described first by the sending device.According to the scheme of the embodiment of the present disclosure, a kind of effective solution of the L2 relayings performed in rlc sublayer can be provided.
Description
Technical field
Embodiment of the disclosure is related to wireless communication field, more particularly relate to double bounce packet transmission method, in
After equipment, remote equipment and base station.
Background technology
With the arrival of the 5th third-generation mobile communication technology (5G), it is expected to further enhance for IoT and wearable device
Device-to-device (D2D) communication in third generation partner program (3GPP) Long Term Evolution (LTE) system.In particular, it is desirable to
Strengthen remote equipment (such as wearable device) to the relaying of network, to support the end by repeated link (such as smart mobile phone)
To the end security of (E2E), service continuity, service quality (QoS), with multiple remote equipments effectively operating and connect in Uu
Active path switching between mouth and D2D air interfaces.
The content of the invention
Generally, embodiment of the disclosure provides method, trunking, remote equipment and the base for being used for double bounce packet transmission
Stand.
In one aspect of the present disclosure, there is provided a kind of method for being used for double bounce packet transmission implemented at trunking.
This method includes：At wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)：Obtain the of double bounce packet transmission
Two jump the status information of RLC transmission；And the status information is sent to the first of the double bounce packet transmission and jumps RLC transmission
Sending device, with by the sending device be based on the status information control it is described first jump RLC transmission.
In another aspect of the present disclosure, there is provided a kind of to be used for what double bounce packet was transmitted what remote equipment or base station were implemented
Method.This method includes：At wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)：From described in trunking reception
The second of double bounce packet transmission jumps the status information of RLC transmission；And the double bounce packet is controlled to pass based on the status information
Defeated first jumps RLC transmission.
In another aspect of the present disclosure, there is provided a kind of trunking.The trunking is wireless radio link layer (L2)
Control is performed for double bounce packet transmission at link control (RLC) sublayer, the equipment includes：Controller, is arranged to obtain
Take the status information of the second jump RLC transmission；And transceiver, it is arranged to the status information being sent to the first jump RLC
The sending device of transmission, RLC transmission is jumped to be based on status information control described first by the sending device.
In another aspect of the present disclosure, there is provided a kind of remote equipment.The remote equipment is carried out via trunking and base station
Double bounce packet transmission, the remote equipment are directed to described two at wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)
Jump packet transmission and perform control, the remote equipment includes：Transceiver, for receiving the double bounce packet from the trunking
The second of transmission jumps the status information of RLC transmission；And controller, for controlling the double bounce packet based on the status information
The first of transmission jumps RLC transmission.
In another aspect of the present disclosure, there is provided a kind of base station.The base station carries out double bounce via trunking and remote equipment
Packet transmission, the base station pass at wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2) for double bounce packet
Defeated to perform control, the base station includes：Transceiver, is jumped for receiving the second of the double bounce packet transmission from the trunking
The status information of RLC transmission；And controller, for controlling the first of the double bounce packet transmission to jump based on the status information
RLC transmission.
According to the scheme of the embodiment of the present disclosure, a kind of effective solution of the L2 relayings performed in rlc sublayer can be provided
Scheme.
It should be appreciated that the content described in Summary is not intended to limit the embodiment of the present disclosure crucial or again
Feature is wanted, it is also non-to be used to limit the scope of the present disclosure.The further feature of the disclosure will be easy to understand by following description.
Brief description of the drawings
With reference to attached drawing and refer to described further below, above and other feature, advantage and the aspect of each embodiment of the disclosure
It will be apparent.In the accompanying drawings, the same or similar reference numeral represents the same or similar element, wherein：
Fig. 1 shows the schematic diagram for the double bounce packet transmission that the embodiment of the present disclosure can be implemented within；
Fig. 2 shows the schematic diagram of traditional L2 relayings for double bounce packet transmission；
Fig. 3 shows the method for being used for double bounce packet transmission implemented according to the embodiment of the present disclosure at trunking
Flow chart；
Fig. 4 is shown is used for what double bounce packet was transmitted according to the embodiment of the present disclosure what remote equipment or base station were implemented
The flow chart of method；
Fig. 5 shows the signal relayed according to the L2 being used in the rlc sublayer of double bounce packet transmission of the embodiment of the present disclosure
Figure；
Fig. 6 shows the signal relayed according to the L2 being used in the rlc sublayer of double bounce packet transmission of the embodiment of the present disclosure
Figure；
Fig. 7 shows the device for being used for double bounce packet transmission implemented according to the embodiment of the present disclosure at trunking
Structure diagram；
Fig. 8 is shown is used for what double bounce packet was transmitted according to the embodiment of the present disclosure what remote equipment or base station were implemented
The structure diagram of device；And
Fig. 9 shows the structure diagram of the equipment according to the embodiment of the present disclosure.
Embodiment
Embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although shown in the drawings of some of the disclosure
Embodiment, it should be understood that, the disclosure can be realized by various forms, and should not be construed as being limited to this
In the embodiment that illustrates, it is in order to more thorough and be fully understood by the disclosure conversely to provide these embodiments.It should be understood that
It is being given for example only property of the accompanying drawings and embodiments effect of the disclosure, is not intended to limit the protection domain of the disclosure.
Term " base station " as used herein can represent node B (NodeB either NB), enode b (eNodeB or
ENB), remote radio unit (RRU), radio-frequency maser (RH), remote radio heads (RRH), repeater or such as pico- base
Stand, low power nodes of femto base station etc. etc..In the context of the disclosure, to discuss convenient purpose, mainly with eNB
Example as base station.
Terminology used in this article " remote equipment " is to refer between base station or carry out each other channel radio
Any terminal device or user equipment (UE) of letter.As an example, remote equipment can include with communication function sensor,
Detector, mobile terminal (MT), subscriber stations (SS), portable subscriber platform (PSS), mobile station (MS) or access terminal (AT),
And vehicle-mounted the said equipment etc..In the context of the disclosure, to discuss convenient purpose, term " remote equipment ", " terminal
Equipment " and " user equipment " are interchangeable, and the mainly example using UE as remote equipment (long-range UE).
Terminology used in this article " trunking " is to refer to forward packet between base station and remote equipment
The network equipment or terminal device.As an example, trunking can be to have specific function in base station or communication network
Other entities or node or any terminal device that wireless communication can be carried out between base station or each other
Or user equipment.In the context of the disclosure, to discuss convenient purpose, trunking (relaying UE) is mainly used as using UE
Example.
Term " comprising " as used herein and its deformation are that opening includes, i.e., " include but not limited to ".Term "based"
It is " being based at least partially on ".Term " one embodiment " expression " at least one embodiment "；Term " another embodiment " represents
" at least one further embodiment ".The related definition of other terms provides in will be described below.
Fig. 1 shows the schematic diagram 100 for the double bounce packet transmission that the embodiment of the present disclosure can be implemented within, wherein in RLC
L2 relayings are performed in sublayer.As shown in Figure 1, long-range UE 110 can communicate via relaying UE 120 with eNB 130.Example
Such as, as shown in the figure, long-range UE 110 can be sent out via relaying UE 120 in the form of protocol Data Unit (PDU) to eNB 130
Send packet (uplink).It will be appreciated that eNB 130 equally can send number via relaying UE 120 to long-range UE 110
According to packet (downlink transfer).For convenience, example is only transmitted as with uplink to describe embodiment of the disclosure herein.
Communication between long-range UE 110 and relaying UE 120 is as shown in 101-104 in Fig. 1.101, long-range UE 110 will
Protocol Data Unit PDU#1 is sent to relaying UE 120.102, relaying UE 120 receives the backward long-range UE 110 of PDU#1
Send the confirmation message ACK#1 for PDU#1., will in long-range UE 110 after relaying UE 120 receives confirmation message ACK#1
PDU#1 is discharged from caching, and 103, continues transmission PDU#2 to relaying UE 120.
104, relaying UE 120 receives the rear confirmation message sent to long-range UE 110 for PDU#2 of PDU#2
ACK#2.And so on.At the same time, the communication between UE 120 and eNB 130 is relayed as shown in 105-108 in Fig. 1.
105, relaying UE 120 forwards it to eNB 130 after PDU#1 is received from long-range UE 110.Received in 106, eNB 130
To the rear confirmation message ACK#1 to relaying UE 120 transmissions for PDU#1 of the PDU#1 of forwarding.107, relaying UE 120 from
After eNB 130 receives confirmation message ACK#1, continue to forward the PDU#2 received from long-range UE 110 to eNB 130.
108, eNB 130 receive after the PDU#2 of forwarding the confirmation message ACK#2 sent to relaying UE 120 for PDU#2.Above-mentioned mistake
Journey can with and so on ground repeat.
As it can be seen that in the L2 relayings of current double bounce packet transmission, the first jump packet transmission (such as long-range UE 110 and relaying
Between UE 120) to be jumped second between packet transmission (such as relaying UE 120 and eNB 130 between) be relatively independent.At this
In the case of kind, a link cannot be adjusted according to the state of another link so that whole to transmit underaction and reduce
Efficiency of transmission.It is described in detail with reference to Fig. 2.
Fig. 2 shows the schematic diagram 200 for the L2 relayings for being used for double bounce packet transmission in the prior art.It is as shown in Fig. 2, long-range
The process 101-104 of the first jump packet transmission between UE 110 and relaying UE 120 is similar with Fig. 1, and which is not described herein again.
When the second jump set transmission link between relaying UE 120 and eNB 130 as shown in Figure 2 is interrupted or disconnected, relaying UE 120 can not
The packet of the such as PDU#1 and PDU#2 that are received from long-range UE 110 are transmitted to eNB 130.Long-range UE 110 is therefrom
The confirmation message of such as ACK#1 and ACK#2 etc are obtained after UE 120, and thinks that packet is properly received by eNB 130,
So as to which the packet sent be discharged from caching.However, actually these packets do not jump packet biography by second
Defeated receiving device, that is, eNB 130 is received, so these packets are lost in whole RLC transmission.
To solve the above-mentioned problems, the basic conception of the embodiment of the present disclosure is that, in the rlc sublayer of L2, first
Jump and establish contact between packet transmission and the second jump packet transmission so that the first jump packet transmission can jump packet according to second and pass
Defeated status information is adjusted.Thereby, it is possible to realize the relayings of the L2 in rlc sublayer with preferably support long-range UE and eNB it
Between double bounce packet transmission.It is described in detail with reference to Fig. 3 and Fig. 4.
Fig. 3 shows the method for being used for double bounce packet transmission implemented at trunking according to the embodiment of the present disclosure
300 flow chart.This method 300 can for example be implemented in the rlc sublayer at the relaying UE 120 of Fig. 1 and Fig. 2 in L2.
As shown in figure 3,310, the second state for jumping RLC transmission that relaying UE 120 can obtain in double bounce packet transmission
Information.According to one embodiment of the disclosure, relaying UE 120 can monitor the link circuit condition of the second jump RLC transmission, i.e., in
Link circuit condition between UE 120 and eNB 130.
For example, relaying UE 120 can monitor the variation of the link circuit condition of the second jump RLC transmission.In this case, root
According to embodiment of the disclosure, monitoring link circuit condition can include at least monitoring at least one of following：Second jump RLC transmission is broken
Open the first scheduled time slot；It is not received by the case where there is packet transmission in the second scheduled time slot for packet transmission
ACK information；And expire the 3rd scheduled time slot for the caching of the second jump RLC transmission.
Alternatively, for example, relaying UE 120 can monitor the second jump RLC transmission link circuit condition recovery or improve.At this
In the case of kind, in accordance with an embodiment of the present disclosure, monitoring link circuit condition can include at least monitoring at least one of following：
After two jump RLC transmissions disconnect or the ACK information for packet transmission is not received by scheduled time slot, ACK is received again
Information；And it is changed into non-full state from full state for the caching of the second jump RLC transmission.
According to another embodiment of the present disclosure, relaying UE 120 can monitor the packet status transmission of the second jump RLC transmission.
For example, can monitor between UE 120 and eNB 130 is relayed whether Successful transmissions packet.According to the implementation of the disclosure
Example, relaying UE 120 can be monitored at least for the second ACK/NACK information for jumping RLC transmission.For example, relaying UE 120 can be with
The mapping table between the first jump RLC service data units (SDU) and the second jump RLC SDU is established and is maintained in, to be jumped to first
The sending device of RLC transmission sends the ACK/NACK information of the RLC SDU of relaying, so as to notify the SDU which is relayed by second
The receiving device for jumping RLC transmission is properly received.
320, the first hair for jumping RLC transmission that status information can be sent in double bounce packet transmission by relaying UE 120
Equipment is sent, RLC transmission is jumped to be based on status information control first by sending device.In this example, the hair of the first jump RLC transmission
Send equipment i.e. long-range UE 110.Relaying UE 120 can be by least one in such as link circuit condition of acquisition and packet status transmission
Item is sent to long-range UE 110 as status information.In this way, the sending device that relaying UE 120 jumps RLC transmission to first is not only anti-
The ACK/NACK information of RLC transmission is jumped in feedback first and feedback second jumps the ACK/NACK information of RLC transmission.
According to one embodiment of the disclosure, relaying UE 120 can use existing or defined " state "
(STATUS) protocol Data Unit (PDU) carrys out transferring status data.Jumped for example, can add state information to for first
In the status PDU of RLC transmission, such as in the reserved field of status PDU, for example, 1 bit R1 field or 3 bit CPT fields.Root
According to another embodiment of the present disclosure, relaying UE 120 can be exclusively used in transmitting the state using the new PDU for defining (self-defined)
Information.For example, newly defining a status PDU, it is allowed to only include this kind of status information.
After for example long-range UE 110 of sending device of the first jump RLC transmission receives status information, state can be based on
RLC transmission is jumped in information control first.It is described in detail referring now to Fig. 4.Fig. 4 is shown according to the embodiment of the present disclosure remote
What journey equipment or base station were implemented is used for the flow chart of the method 400 of double bounce packet transmission.This method 400 can be in Fig. 1 and Fig. 2
Long-range UE 110 (uplink) or eNB 130 (downlink transfer) be in the rlc sublayer of L2 and implement.Here with long-range UE
It is described exemplified by implementing at 110.
As shown in figure 4,410, long-range UE 110 can receive double bounce packet from trunking (such as relaying UE 120)
Second in transmission jumps the status information of RLC transmission.As mentioned above, relaying UE 120 can be by existing or newly defined
PDU transferring status datas.Correspondingly, in accordance with an embodiment of the present disclosure, long-range UE 110 can jump RLC transmission from for first
The status information is obtained in status PDU.According to another embodiment of the present disclosure, long-range UE 110 can be exclusively used in from customized
The status information is obtained in the PDU of transferring status data.
RLC transmission is jumped 420, first during long-range UE 110 can be transmitted based on status information control double bounce packet.Such as
It is above-mentioned, in link circuit condition and packet status transmission that relaying UE 120 can jump RLC transmission by monitor second
At least one is transmitted as status information.Correspondingly, long-range UE 110 can be based on the second link circuit condition for jumping RLC transmission
The first jump RLC transmission is adjusted with least one in packet status transmission.Can be with link circuit condition and packet status transmission
With reference to the corresponding description above in conjunction with Fig. 3, which is not described herein again.Describe below to the first adjustment for jumping RLC transmission.
In accordance with an embodiment of the present disclosure, adjustment first jumps RLC transmission including at least at least one of following：Stop first
Jump RLC transmission；Change the first data PDU sizes for jumping RLC transmission；RLC transmission is jumped in delay first；And recover first and jump RLC
Transmission.
In accordance with an embodiment of the present disclosure, RLC transmission can be jumped based on the second link circuit condition for jumping RLC transmission, adjustment first.
For example, in the case where status information shows that the link of the second jump RLC transmission is deteriorated, such as the second jump RLC transmission has been disconnected and reached
First scheduled time slot, be not received by for packet transmission in the case where there is packet transmission in the second scheduled time slot
ACK information, the caching for jumping for second RLC transmission are full up to the 3rd scheduled time slot etc., then can be at least using in following
At least one of adjust the first jump RLC transmission：Stop first and jump RLC transmission；Change the first data PDU sizes for jumping RLC transmission
(such as reducing data PDU sizes to slow down the first jump RLC transmission)；RLC transmission is jumped in delay first.
Alternatively, such as in the case where status information shows the link-recovery of the second jump RLC transmission or improves, such as
Second jump RLC transmission disconnects or receives ACK again after the ACK information for packet transmission is not received by scheduled time slot
Information, the caching for the second jump RLC transmission are changed into non-full state etc. from full state, then can be at least using in following
At least one of adjust the first jump RLC transmission：Changing the data PDU sizes of the first jump RLC transmission (such as increases the data
PDU sizes are to accelerate the first jump RLC transmission)；Recover (such as restarting or cancel delay) first and jump RLC transmission.
In accordance with an embodiment of the present disclosure, RLC can be jumped based on the second packet status transmission for jumping RLC transmission, adjustment first
Transmission.For example, based on the ACK/NACK information that RLC transmission is jumped for second, RLC transmission is jumped in adjustment first.As previously described, in
Believe after the ACK/NACK of from UE 120 to the first for example long-range UE 110 of sending device for jumping RLC transmission RLC SDU for sending relaying
Breath.In one embodiment, the quantity of the nack message in RLC transmission is jumped based on second, the first jump RLC transmission can be adjusted.
For example, if the NACK amounts in the second jump RLC transmission are more than predetermined threshold, long-range UE 110 can at least use it is following in
At least one of adjust the first jump RLC transmission：Stop first and jump RLC transmission；Change the first data PDU sizes for jumping RLC transmission
(such as reducing data PDU sizes to slow down the first jump RLC transmission)；RLC transmission is jumped in delay first.It will be appreciated that the disclosure
Embodiment be not limited to this, but can have other a variety of alternatives, which is not described herein again.RLC is jumped according to second to pass
RLC transmission is jumped in defeated status information adjustment first, it is possible thereby to improve the efficiency entirely transmitted and the robustness of link.
For ease of understanding, describe a kind of status information adjustment first that RLC transmission is jumped according to second with reference to Fig. 5 and jump
The concrete scene example of RLC transmission.Fig. 5 shows the rlc sublayer for being used for double bounce packet transmission according to the embodiment of the present disclosure
L2 relaying schematic diagram 500.As shown in figure 5, PDU#1 is sent to relaying UE 120 (similar to Fig. 1's by long-range UE 110
101), and from relaying UE 120 the confirmation message ACK#1 (be similar to Fig. 1 102) for PDU#1 is received.In this example, far
Journey UE 110 receives the PDU#1 in release caching after ACK#1.PDU#1 is transmitted to eNB 130 and (is similar to by relaying UE 120
Fig. 1 105).Second jump the disconnection of RLC transmission link at this time.It is different from the embodiment of Fig. 1, in the 5 embodiment of figure 5,510,
Relaying UE 120 will indicate that the status information that the second jump RLC transmission link disconnects is sent to long-range UE 110.520, long-range UE
110 RLC transmissions based on status information delay PDU#2.It will be appreciated that Fig. 5 is merely illustrative, not to embodiment of the present disclosure structure
Into any restrictions.In addition to the situation shown in Fig. 5, there can also be other a variety of alternatives, will not enumerate here.
In accordance with an embodiment of the present disclosure, long-range UE 110 is also based on for the second ACK/NACK letters for jumping RLC transmission
Breath, safeguards the data being used in the first caching for jumping RLC transmission.As previously described, relay UE 120 and jump RLC transmission to first
For example long-range UE 110 of sending device sends the ACK/NACK information of the RLC SDU of relaying, so that long-range UE 110 can be known
The SDU of which relaying is properly received by the receiving device of the second jump RLC transmission.Thus, long-range UE 110, which can discharge, is used for
First jumps the related data in the caching of RLC transmission.On the contrary, it can know that the SDU of which relaying does not jump RLC by second and passes
Defeated receiving device is properly received, then long-range UE 110 can continue to store that data in caching.It is possible thereby to root
The cache contents of the first jump RLC transmission are managed according to the feedback of the second jump RLC transmission, so as to reduce the number in whole transmitting procedure
According to loss.
For ease of understanding, a kind of tool cached according to the second state information management for jumping RLC transmission is described with reference to Fig. 6
Body Sample Scenario.Fig. 6 is shown to be shown according to what the L2 being used in the rlc sublayer of double bounce packet transmission of the embodiment of the present disclosure was relayed
It is intended to 600.As shown in fig. 6, long-range UE 110, relaying UE 120 and eNB 130 are with similar to the 101- described above in conjunction with Fig. 1
108 process carries out double bounce packet transmission.Unlike Fig. 1,610, relaying UE 120 sends to long-range UE 110 and wraps
Status information containing the corresponding ACK information of PDU#1 and PDU#2 for relaying.620, long-range UE 110 is believed based on the state
PDU#1 and PDU#2 in its caching of breath release.It will be appreciated that Fig. 6 is merely illustrative, the embodiment of the present disclosure is not formed any
Limitation.In addition to the situation shown in Fig. 6, there can also be other a variety of alternatives, will not enumerate here.
The foregoing describe the method for being used for double bounce packet transmission according to the embodiment of the present disclosure.According to the embodiment of the present disclosure
Method, can provide the link robustness of effective link adjustment and enhancing, so as to improve the efficiency entirely transmitted and reduce number
According to the loss of packet.Correspondingly, embodiment of the disclosure can also provide real in trunking and remote equipment or base station
That applies is used for the device of double bounce packet transmission.It is described in detail with reference to Fig. 7 and Fig. 8.
Fig. 7 shows the structure diagram of the device 700 implemented at trunking according to the embodiment of the present disclosure.It should be understood that
Arrive, device 700 can be realized on the relaying UE 120 for example shown in Fig. 1.Alternatively, device 700 can relay UE in itself.
The device 700 can perform control at the rlc sublayer of L2 for double bounce packet transmission.
As shown in fig. 7, device 700 can include acquiring unit 710 and transmitting element 720.Acquiring unit 710 can by with
Put for obtaining the second status information for jumping RLC transmission.Such as acquiring unit 710 can be realized by controller.Transmitting element
720 can be arranged to status information being sent to the sending device (such as long-range UE110 of Fig. 1) of the first jump RLC transmission,
RLC transmission is jumped to be based on status information control first by the sending device.Such as transmitting element 720 can be real by transceiver
It is existing.
In one embodiment, acquiring unit 710 can include the first monitoring unit (not shown), be arranged to monitor
Described second jumps the link circuit condition of RLC transmission.In one embodiment, it is following to be arranged at least monitoring for the first monitoring unit
At least one of：Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；Exist packet transmission in the case of whether
The ACK information for packet transmission is received in second scheduled time slot；Whether the caching that RLC transmission is jumped for second is full up to the
Three scheduled time slots；The ACK information for packet transmission is disconnected or is not received by scheduled time slot in the second jump RLC transmission
Afterwards, if receive ACK information again；And whether from full state it is changed into non-full for the caching of the second jump RLC transmission
State.
In one embodiment, acquiring unit 710 can include the second monitoring unit (not shown), be arranged to monitor
Second jumps the packet status transmission of RLC transmission.In one embodiment, the second monitoring unit can be arranged at least monitor
For the second ACK/NACK information for jumping RLC transmission.
In one embodiment, transmitting element 720 can include the first transmitting element (not shown), be arranged to shape
State information is added in the status PDU that RLC transmission is jumped for first.In another embodiment, transmitting element 720 can include the
Two transmitting element (not shown), are arranged to the transferring status data in the customized PDU for being exclusively used in transferring status data.
It should be appreciated that each unit described in device 700 respectively with it is each dynamic in the method 300 that is described with reference to figure 3
Make corresponding.Also, the operation of device 700 and unit wherein included and feature both correspond to the behaviour above in association with Fig. 3 descriptions
Work and feature, and have same effect, detail repeats no more.
Fig. 8 is shown is used for what double bounce packet was transmitted according to the embodiment of the present disclosure what remote equipment or base station were implemented
The structure diagram of device 800.It will be appreciated that device 800 can be realized on the long-range UE 120 for example shown in Fig. 1, can also
Realize on the eNB130 for example shown in Fig. 1.Alternatively, device 800 can be long-range UE in itself or eNB in itself.Should
Device 800 can perform control at the rlc sublayer of L2 for double bounce packet transmission.
As shown in fig. 7, device 800 can include receiving unit 810 and control unit 820.Receiving unit 810 can by with
Put for receiving the second of the double bounce packet transmission state letter for jumping RLC transmission from trunking (such as relaying UE 120 of Fig. 1)
Breath.Receiving unit 810 can be realized by transceiver.Control unit 820 is configured for status information control double bounce
The first of packet transmission jumps RLC transmission.Control unit 820 can be realized by controller.
In one embodiment, receiving unit 810 can include：First receiving unit (not shown), be arranged to from
Status information is obtained in status PDU for the first jump RLC transmission.In another embodiment, receiving unit 810 can include：
Second receiving unit (not shown), is arranged to be exclusively used in obtaining state letter in the PDU of transferring status data from customized
Breath.
In one embodiment, control unit 820 can include：First adjustment unit (not shown), is arranged to base
In the link circuit condition that second jumps RLC transmission, RLC transmission is jumped in adjustment first.First adjustment unit be arranged at least be based on
It is at least one of lower to adjust the first jump RLC transmission：Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；Exist
Whether ACK information for packet transmission is received in the second scheduled time slot in the case of packet transmission；RLC is jumped for second
Whether the caching of transmission is full up to the 3rd scheduled time slot；Disconnect in the second jump RLC transmission or be not received by scheduled time slot
After the ACK information of packet transmission, if receive ACK information again；And for second jump RLC transmission caching whether
It is changed into non-full state from full state.
In one embodiment, control unit 820 can include：Second adjustment unit (not shown), is arranged to base
In the packet status transmission that second jumps RLC transmission, RLC transmission is jumped in adjustment first.In one embodiment, second adjustment unit quilt
It is configured to jump RLC transmission based on the ACK/NACK information for jumping RLC transmission for second, adjustment first.
In accordance with an embodiment of the present disclosure, adjustment first jumps RLC transmission including at least at least one of following：Stop first
Jump RLC transmission；Change the first data PDU sizes for jumping RLC transmission；RLC transmission is jumped in delay first；And recover first and jump RLC
Transmission.
In one embodiment, device 800 can also include：Maintenance unit (not shown), is configured for being directed to
Second jumps the ACK/NACK information of RLC transmission, safeguards the data being used in the first caching for jumping RLC transmission.
It should be appreciated that each unit described in device 800 respectively with it is each dynamic in the method 400 that is described with reference to figure 4
Make corresponding.Also, the operation of device 800 and unit wherein included and feature both correspond to the behaviour above in association with Fig. 4 descriptions
Work and feature, and have same effect, detail repeats no more.
Fig. 9 shows the structure diagram for the equipment 900 for being adapted for carrying out embodiment of the disclosure.Equipment 900 can include control
Device 910 processed, the operation of 910 control device 900 of controller and function.For example, in certain embodiments, controller 910 can be borrowed
The instruction 930 that helps be stored in coupled memory 920 performs various operations.Memory 920 can apply to
Any suitable type of local technical environment, and can be realized using any suitable data storage technology, including but
It is not limited to the memory device based on semiconductor, magnetic memory device and system, light storage device and system.Although only show in Fig. 9
Go out a memory cell, but there can be the different memory cell of multiple physics in equipment 900.
Controller 910 can apply to any suitable type of local technical environment, and can include but unlimited
In all-purpose computer, special purpose computer, microcontroller, digital signal controller (DSP) and more nuclear control based on controller
One or more of device framework is multiple.Equipment 900 can also include multiple controllers 910.
Equipment 900 can be used for realizing relaying UE 120.When equipment 900 serves as relaying UE 120, controller 910 and deposit
Reservoir 920 can be with compounding practice, to realize the method 300 above with reference to Fig. 3 descriptions.Above with reference to the described all spies of Fig. 3
Sign is suitable for equipment 900, and details are not described herein.
Equipment 900 can be used for realizing long-range UE 110 or eNB 130.When equipment 900 serves as long-range UE 110 or eNB
When 130, controller 910 and memory 920 can be with compounding practices, to realize the method 400 above with reference to Fig. 4 descriptions.Ginseng above
Examine the described all features of Fig. 4 and be suitable for equipment 900, details are not described herein.
It will be appreciated that the equipment 900 is also possible that any other device/element needed, such as transmitter, reception
Device, transceiver, antenna etc., to perform corresponding action.Here for clarity, do not showed that in figure.
In general, the various example embodiments of the disclosure can in hardware or special circuit, software, logic, or its
What implements in combining.Some aspects can be implemented within hardware, and other aspect can by controller, microprocessor or
Implement in the firmware or software of other computing devices.When each side of embodiment of the disclosure is illustrated or described as frame
When figure, flow chart or other some figures of use represent, it will be understood that square frame described herein, device, system, techniques or methods can
Using in terms of as nonrestrictive example in hardware, software, firmware, special circuit or logic, common hardware or controller or other
Calculate and implement in equipment, or its some combination.The example that can be used to realize the hardware device of the embodiment of the present disclosure includes but not limited to：
Field programmable gate array (FPGA), application-specific integrated circuit (ASIC), application specific standard product (ASSP), system-on-chip (SOC), complexity
Programmable logic device (CPLD), etc..
As an example, embodiment of the disclosure can be described in the context of machine-executable instruction, machine can be held
Row instruction is such as included in the program module performed in the device on the true or virtual processor of target.In general,
Program module includes routine, program, storehouse, object, class, component, data structure etc., it performs specific task or realizes specific
Abstract data structure.In embodiments, the function of program module can merge between described program module or
Segmentation.Machine-executable instruction for program module can perform in local or distributed apparatus.In distributed apparatus
In, program module can be located locally with both remote medium storages.
Being used for realization the computer program code of disclosed method can be write with one or more programming languages.These
Computer program code can be supplied to the processing of all-purpose computer, special purpose computer or other programmable data processing units
Device so that program code by computer or other programmable data processing units execution when, cause flow chart and/
Or function/operation is carried out specified in block diagram.Program code can completely on computers, part on computers, conduct
Independent software kit, part are on computers and part is held on remote computer or server on the remote computer or completely
OK.
In the context of the disclosure, machine readable media can include or store to be used to or be related to instruct to perform system
Any tangible medium of the program of system, device or equipment.Machine readable media can be that machine-readable signal medium or machine can
Read storage medium.Machine readable media can include but is not limited to electronics, magnetic, it is optical, electromagnetism, infrared or partly lead
System system, device or equipment, or its any appropriate combination.The more detailed example of machinable medium includes carrying one
Or the electrical connections of multiple conducting wires, portable computer diskette, hard disk, random access memories (RAM), read-only storage
(ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), light storage device, magnetic storage apparatus, or its is any appropriate
Combination.
In addition, although operation be depicted with particular order, but this and should not be construed require this generic operation to show
Particular order is completed with sequential order, or performs the operations of all diagrams to obtain expected result.In some cases, it is more
Task or parallel processing can be beneficial.Similarly, although discussed above contain some specific implementation details, this is not
It should be interpreted that the scope for limiting any invention or claim, and should be interpreted that the specific embodiment to specific invention can be directed to
Description.Some features in this specification described in the context of separated embodiment can also combined implementation in single reality
Apply in example.Conversely, various features described in the context of single embodiment can also discretely multiple embodiments or
Implement in any appropriate sub-portfolio.
Although theme is described with the language specific to structural features and or methods of action, but it is to be understood that institute
The theme limited in attached claim is not limited to above-described special characteristic or action.On the contrary, above-described specific spy
Action of seeking peace is disclosed as the exemplary forms for realizing claim.
Claims (41)
1. a kind of method for being used for double bounce packet transmission implemented at trunking, including：
At wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)：
Obtain the second of the double bounce packet transmission status information for jumping RLC transmission；And
The status information is sent to the first of the double bounce packet transmission sending device for jumping RLC transmission, with by the hair
Send equipment to be based on status information control described first and jump RLC transmission.
2. according to the method described in claim 1, wherein obtaining the status information includes：
Monitor the described second link circuit condition for jumping RLC transmission.
3. according to the method described in claim 2, wherein monitor at least one during the link circuit condition is included at least below monitoring
Kind：
Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；
The ACK whether received in the case where there is packet transmission in the second scheduled time slot for the packet transmission believes
Breath；
Whether the caching that RLC transmission is jumped for described second is full up to the 3rd scheduled time slot；
After the described second jump RLC transmission is disconnected or is not received by scheduled time slot for the ACK information of packet transmission, it is
It is no to receive ACK information again；And
Whether the caching for the described second jump RLC transmission from full state is changed into non-full state.
4. according to the method described in claim 1, wherein obtaining the status information includes：
Monitor the described second packet status transmission for jumping RLC transmission.
5. according to the method described in claim 4, wherein monitoring the packet status transmission includes at least monitoring for described the
Two jump the ACK/NACK information of RLC transmission.
6. according to the method described in claim 1, wherein sending the status information includes：
The status information is added in " state " protocol Data Unit (PDU) that RLC transmission is jumped for described first.
7. according to the method described in claim 1, wherein sending the status information includes：
The status information is transmitted in the customized PDU for being exclusively used in transmitting the status information.
8. a kind of method for being used for double bounce packet transmission implemented in remote equipment or base station, including：
At wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)：
The second of the double bounce packet transmission status information for jumping RLC transmission is received from trunking；And
Control the double bounce packet transmission based on the status information first jumps RLC transmission.
9. according to the method described in claim 8, wherein receiving the status information includes：
The status information is obtained from " state " protocol Data Unit (PDU) that RLC transmission is jumped for described first.
10. according to the method described in claim 8, wherein receiving the status information includes：
The status information is obtained from the customized PDU for being exclusively used in transmitting the status information.
11. according to the method described in claim 8, the first jump RLC transmission is wherein controlled to include：
Based on the described second link circuit condition for jumping RLC transmission, RLC transmission is jumped in adjustment described first.
12. according to the method for claim 11, wherein adjustment is included at least based at least one of following to adjust
State the first jump RLC transmission：
Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；
The ACK whether received in the case where there is packet transmission in the second scheduled time slot for the packet transmission believes
Breath；
Whether the caching that RLC transmission is jumped for described second is full up to the 3rd scheduled time slot；
After the described second jump RLC transmission is disconnected or is not received by scheduled time slot for the ACK information of packet transmission, it is
It is no to receive ACK information again；And
Whether the caching for the described second jump RLC transmission from full state is changed into non-full state.
13. according to the method described in claim 8, the first jump RLC transmission is wherein controlled to include：
Based on the described second packet status transmission for jumping RLC transmission, RLC transmission is jumped in adjustment described first.
14. according to the method for claim 13, wherein adjusting the first jump RLC transmission includes：
Based on the ACK/NACK information that RLC transmission is jumped for described second, RLC transmission is jumped in adjustment described first.
15. according to the method for claim 14, further include：
Based on the ACK/NACK information that RLC transmission is jumped for described second, safeguard that being used for described first jumps the slow of RLC transmission
Data in depositing.
16. according to the method any one of claim 11-14, include at least wherein adjusting described first and jumping RLC transmission
At least one of below：
Stop described first and jump RLC transmission；
Change the described first data PDU sizes for jumping RLC transmission；
Postpone described first and jump RLC transmission；And
Recover described first and jump RLC transmission.
A kind of 17. trunking, for double bounce packet transmission at wireless spread-spectrum technology (RLC) sublayer of radio link layer (L2)
Control is performed, the equipment includes：
Controller, is arranged to obtain the second status information for jumping RLC transmission；And
Transceiver, is arranged to the status information being sent to the sending device of the first jump RLC transmission, with by the transmission
Equipment is based on status information control described first and jumps RLC transmission.
18. equipment according to claim 17, wherein the controller is arranged to monitor the second jump RLC transmission
Link circuit condition.
19. equipment according to claim 18, wherein the controller is arranged at least monitoring below at least
It is a kind of：
Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；
The ACK whether received in the case where there is packet transmission in the second scheduled time slot for the packet transmission believes
Breath；
Whether the caching that RLC transmission is jumped for described second is full up to the 3rd scheduled time slot；
After the described second jump RLC transmission is disconnected or is not received by scheduled time slot for the ACK information of packet transmission, it is
It is no to receive ACK information again；And
Whether the caching for the described second jump RLC transmission from full state is changed into non-full state.
20. equipment according to claim 17, wherein the controller is arranged to monitor the second jump RLC transmission
Packet status transmission.
21. equipment according to claim 20, wherein the controller, which is arranged at least monitoring, is directed to described second
Jump the ACK/NACK information of RLC transmission.
22. equipment according to claim 17, wherein the transceiver is arranged to the status information being added to
In " state " protocol Data Unit (PDU) that RLC transmission is jumped for described first.
23. equipment according to claim 17, wherein the transceiver is arranged to be exclusively used in transmitting customized
The status information is transmitted in the PDU of the status information.
24. a kind of remote equipment, carries out double bounce packet via trunking and base station and transmits, the remote equipment is in Radio Link
Control is performed for double bounce packet transmission at wireless spread-spectrum technology (RLC) sublayer of layer (L2), the remote equipment includes：
Transceiver, is arranged to receive the second of the double bounce packet transmission state for jumping RLC transmission from the trunking
Information；And
Controller, is configured for the status information and controls the first of the double bounce packet transmission to jump RLC transmission.
25. equipment according to claim 24, wherein the transceiver is arranged to jump RLC biographies from for described first
The status information is obtained in defeated " state " protocol Data Unit (PDU).
26. equipment according to claim 24, wherein the transceiver is arranged to be exclusively used in transmitting from customized
The status information is obtained in the PDU of the status information.
27. equipment according to claim 24, wherein the controller, which is configured for described second, jumps RLC transmission
Link circuit condition, adjustment it is described first jump RLC transmission.
28. equipment according to claim 27, wherein the controller be arranged at least based in following at least
One kind jumps RLC transmission to adjust described first：
Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；
The ACK whether received in the case where there is packet transmission in the second scheduled time slot for the packet transmission believes
Breath；
Whether the caching that RLC transmission is jumped for described second is full up to the 3rd scheduled time slot；
After the described second jump RLC transmission is disconnected or is not received by scheduled time slot for the ACK information of packet transmission, it is
It is no to receive ACK information again；And
Whether the caching for the described second jump RLC transmission from full state is changed into non-full state.
29. equipment according to claim 24, wherein the controller, which is configured for described second, jumps RLC transmission
Packet status transmission, adjustment it is described first jump RLC transmission.
30. equipment according to claim 29, wherein the controller is configured for jumping RLC for described second
RLC transmission is jumped in the ACK/NACK information of transmission, adjustment described first.
31. equipment according to claim 30, wherein the controller is additionally configured to be based on jumping for described second
The ACK/NACK information of RLC transmission, safeguards the data being used in the described first caching for jumping RLC transmission.
32. according to the equipment any one of claim 27-30, include at least wherein adjusting described first and jumping RLC transmission
At least one of below：
Stop described first and jump RLC transmission；
Change the described first data PDU sizes for jumping RLC transmission；
Postpone described first and jump RLC transmission；And
Recover described first and jump RLC transmission.
33. a kind of base station, carries out double bounce packet via trunking and remote equipment and transmits, the base station is in radio link layer
(L2) control is performed for double bounce packet transmission at wireless spread-spectrum technology (RLC) sublayer, the base station includes：
Transceiver, is arranged to receive the second of the double bounce packet transmission state for jumping RLC transmission from the trunking
Information；And
Controller, is configured for the status information and controls the first of the double bounce packet transmission to jump RLC transmission.
34. equipment according to claim 33, wherein the transceiver is arranged to jump RLC biographies from for described first
The status information is obtained in defeated " state " protocol Data Unit (PDU).
35. equipment according to claim 33, wherein the transceiver is arranged to be exclusively used in transmitting from customized
The status information is obtained in the PDU of the status information.
36. equipment according to claim 33, wherein the controller, which is configured for described second, jumps RLC transmission
Link circuit condition, adjustment it is described first jump RLC transmission.
37. equipment according to claim 36, wherein the controller be arranged at least based in following at least
One kind jumps RLC transmission to adjust described first：
Whether the second jump RLC transmission is disconnected up to the first scheduled time slot；
The ACK whether received in the case where there is packet transmission in the second scheduled time slot for the packet transmission believes
Breath；
Whether the caching that RLC transmission is jumped for described second is full up to the 3rd scheduled time slot；
After the described second jump RLC transmission is disconnected or is not received by scheduled time slot for the ACK information of packet transmission, it is
It is no to receive ACK information again；And
Whether the caching for the described second jump RLC transmission from full state is changed into non-full state.
38. equipment according to claim 33, wherein the controller, which is configured for described second, jumps RLC transmission
Packet status transmission, adjustment it is described first jump RLC transmission.
39. the equipment according to claim 38, wherein the controller is configured for jumping RLC for described second
RLC transmission is jumped in the ACK/NACK information of transmission, adjustment described first.
40. equipment according to claim 39, wherein the controller is additionally configured to be based on jumping for described second
The ACK/NACK information of RLC transmission, safeguards the data being used in the described first caching for jumping RLC transmission.
41. according to the equipment any one of claim 36-39, include at least wherein adjusting described first and jumping RLC transmission
At least one of below：
Stop described first and jump RLC transmission；
Change the described first data PDU sizes for jumping RLC transmission；
Postpone described first and jump RLC transmission；And
Recover described first and jump RLC transmission.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950365.XA CN107979444B (en) | 2016-10-25 | 2016-10-25 | Method and apparatus for two-hop packet transmission |
| PCT/IB2017/001414 WO2018078438A1 (en) | 2016-10-25 | 2017-10-24 | Method and apparatus for two-hop packet transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950365.XA CN107979444B (en) | 2016-10-25 | 2016-10-25 | Method and apparatus for two-hop packet transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107979444A true CN107979444A (en) | 2018-05-01 |
| CN107979444B CN107979444B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610950365.XA Active CN107979444B (en) | 2016-10-25 | 2016-10-25 | Method and apparatus for two-hop packet transmission |
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| Country | Link |
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| CN (1) | CN107979444B (en) |
| WO (1) | WO2018078438A1 (en) |
Cited By (2)
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| CN110831095A (en) * | 2018-08-11 | 2020-02-21 | 华为技术有限公司 | Communication method and communication device |
| WO2022205117A1 (en) * | 2021-03-31 | 2022-10-06 | Apple Inc. | Quality of service (qos) enhancement for a side-link relay |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022030517A1 (en) * | 2020-08-05 | 2022-02-10 | 京セラ株式会社 | Communication control method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107979444B (en) | 2021-03-09 |
| WO2018078438A1 (en) | 2018-05-03 |
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