CN104519534A - RLC transmission method and equipment - Google Patents
RLC transmission method and equipment Download PDFInfo
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- CN104519534A CN104519534A CN201310451217.XA CN201310451217A CN104519534A CN 104519534 A CN104519534 A CN 104519534A CN 201310451217 A CN201310451217 A CN 201310451217A CN 104519534 A CN104519534 A CN 104519534A
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Abstract
The invention provides an RLC (Radio Link Control) transmission method and equipment in a radio communication system supporting multiple connections. The radio communication system includes user equipment and at least two base stations connected with the user equipment. The at least two base station includes at least one macro base station and at least one small-size base station. The macro base station includes a master RLC entity and the small-size base station includes a slave RLC entity. RLC protocol functions are implemented by the master RLC entity and the slave RLC entity together. The method includes steps of constructing a downlink RLC PDU including one or more RLC SDUs in the macro base station; and sending the RLC PDU to the small-size base station from the macro base station for facilitating transmission from the small-size base station to the user equipment.
Description
Technical field
The present invention relates to the communications field, particularly at wireless spread-spectrum technology (RLC) transmission method supported in multi-link wireless communication system and equipment.
Background technology
Heterogeneous network (HetNet) is the technology of a kind of elevator system throughput and overall network efficiency.In heterogeneous network, small base station (also referred to as low power nodes) is placed in macro base station coverage area by cloth, forms the heterogeneous system with the different node types covered.Small base station is such as slight (Pico) base station, family (Femto/Home) base station, micro-(Micro) base station, long distance wireless head (Remote Radio Head, RRH) and repeater (Relay) etc.Heterogeneous network scene common is at present indoor Home eNodeB, outdoor focus and indoor focus etc. such as.
In recent years, industry has carried out a lot of research and discussion to the deployment of the small-cell (Small Cell) of small base station and enhancing.In 3GPP R12, have passed research topic " SmallCell Enhancements for E-UTRA and E-UTRAN-Higher-layeraspects ", wherein the important point be support subscriber equipment to macrocell and small-cell pair/multi-link.In user plane framework, provide 9 kinds of candidate options this two/multi-link to support, these options divide according to carrying and user-plane protocol stack etc., and comprise following user plane framework: 1A, 2A, 2B, 2C, 2D, 3A, 3B, 3C and 3D.
In above-mentioned user plane framework, these two kinds of user plane frameworks of 2D and 3D support distributed RLC, and also, main RLC entity is positioned at macro base station place, and is positioned at small base station from RLC entity.2D user plane framework is with the difference of 3D user plane framework: 2D user plane framework supports that non-bearing is separated, and 3D user plane framework supports that carrying is separated.For these two kinds of user plane frameworks, industry does not propose the concrete scheme designing or divide the function about wireless spread-spectrum technology (RLC) between macro base station and small base station.But disadvantageous RLC Functional Design or splitting scheme can cause the undesirable consequence such as congested and loss of data and too much signaling consumption produced in a wireless communication system because nonideal round-trip delay brings between macro base station and small base station.
Therefore, need a kind ofly comprising the macro base station of main RLC entity and comprising between the small base station of RLC entity design or divide the solution of RLC function, to realize efficiently, at a high speed, the RLC transmission of low congested and low data loss rate.
Summary of the invention
For above problem, the invention provides the RLC transmission scheme in a kind of wireless communication system multi-link in support, it can to realize efficiently according in the macro base station comprising main RLC entity and the RLC function comprising between the small base station of RLC entity design or divide, at a high speed, low congested and low-loss RLC transmission.
According to a first aspect of the invention, a kind of wireless spread-spectrum technology RLC transmission method in wireless communication system multi-link in support is provided.At least two base stations that this wireless communication system comprises subscriber equipment and is connected with subscriber equipment, these at least two base stations comprise at least one macro base station and at least one small base station, macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.The method comprises: in downlink transmission, and build down link RLC PDU at macro base station place, this RLC PDU comprises one or more RLC SDU; And RLCPDU is sent from macro base station to small base station, so that small base station is to user device transmissions.
According to a second aspect of the invention, a kind of wireless spread-spectrum technology RLC transmission method in wireless communication system multi-link in support is provided.At least two base stations that this wireless communication system comprises subscriber equipment and is connected with subscriber equipment, these at least two base stations comprise at least one macro base station and at least one small base station, macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.The method comprises: in downlink transmission, receives the RLC PDU built by macro base station at small base station place from macro base station; And at small base station place, received RLCPDU is split and cascade again, to user device transmissions.
According to a third aspect of the invention we, the wireless spread-spectrum technology RLC transmission equipment in a kind of wireless communication system multi-link in support is provided.At least two base stations that this wireless communication system comprises subscriber equipment and is connected with subscriber equipment, these at least two base stations comprise at least one macro base station and at least one small base station, macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.This equipment can comprise: composer, is arranged in downlink transmission, and build down link RLC PDU at macro base station place, RLC PDU comprises one or more RLC service data unit SDU; And transmitter, be arranged to and RLC PDU is sent to small base station from macro base station, so that small base station is to user device transmissions.
According to a forth aspect of the invention, the wireless spread-spectrum technology RLC transmission equipment in a kind of wireless communication system multi-link in support is provided.At least two base stations that this wireless communication system comprises subscriber equipment and is connected with subscriber equipment, these at least two base stations comprise at least one macro base station and at least one small base station, macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.This equipment can comprise: receiver, is arranged in downlink transmission, receives the RLC PDU built by macro base station at small base station place from macro base station; And split and cascade device, be arranged to and at small base station place, received RLC PDU split and cascade, again to user device transmissions.
By the description of the following preferred implementation to the explanation principle of the invention, and by reference to the accompanying drawings, other features of the present invention and advantage will be apparent.
Accompanying drawing explanation
By below in conjunction with the description of the drawings, and understand more comprehensively along with to of the present invention, other objects of the present invention and effect will become clearly and easy to understand, wherein:
Fig. 1 is the schematic diagram being applicable to wireless communication system 100 according to an embodiment of the invention;
Fig. 2 is the flow chart supporting the RLC transmission method 200 in multi-link wireless communication system according to an embodiment of the invention;
Fig. 3 is the flow chart supporting the RLC transmission method 300 in multi-link wireless communication system according to an embodiment of the invention;
Fig. 4 is the block diagram supporting the RLC transmission equipment 400 in multi-link wireless communication system according to an embodiment of the invention; And
Fig. 5 is the block diagram supporting the RLC transmission equipment 500 in multi-link wireless communication system according to an embodiment of the invention.
In all above-mentioned accompanying drawings, identical label represents to have identical, similar or corresponding feature or function.
Embodiment
Below in conjunction with accompanying drawing embodiments of the present invention be explained in more detail and illustrate.Should be appreciated that drawings and Examples of the present invention only for exemplary effect, not for limiting the scope of the invention.
Flow chart in accompanying drawing and block diagram, illustrate according to the architectural framework in the cards of the system of the various execution mode of the present invention, method and apparatus, function and operation.In this, each square frame in flow chart or block diagram can represent a part for module, program segment or a code, and a part for described module, program segment or code comprises one or more executable instruction for realizing the logic function specified.Also it should be noted that at some as in alternative realization, the function marked in square frame also can be different from occurring in sequence of marking in accompanying drawing.Such as, in fact the square frame that two adjoining lands represent can perform substantially concurrently, and they also can perform by contrary order sometimes, and this determines according to involved function.Also it should be noted that, the combination of the square frame in each square frame in block diagram and/or flow chart and block diagram and/or flow chart, can realize by the special hardware based system of the function put rules into practice or operation, or can realize with the combination of specialized hardware and computer instruction.Should be appreciated that drawings and Examples of the present invention only for exemplary effect, not for limiting the scope of the invention.Below in conjunction with accompanying drawing the present invention be explained in more detail and illustrate.
In the present invention, subscriber equipment (UE) can be various types of terminal, such as mobile phone, personal digital assistant (PDA), portable computer or have other any suitable terminal of mobile communication function.Base station can be such as Node B, eNodeB (eNB), access point (AP), radio access station (RAS), etc.Macro base station can be such as grand (Macro) eNodeB/eNB, and it such as can produce macrocell (Macro Cell).Small base station can be such as femto base station (Pico eNodeB/eNB), Home eNodeB (FemtoeNodeB/eNB), micro-base station (Micro eNodeB/eNB), long distance wireless head (RRH) and repeater, etc.These small base stations such as can produce the small-cell such as picocell (Pico Cell), home base station cells (Femto Cell), Microcell (Micro Cell).
Fig. 1 is the schematic diagram being applicable to wireless communication system 100 according to an embodiment of the invention.
Communication environment shown in Fig. 1 schematically shows a wireless communication system 100, this system is a heterogeneous network, this heterogeneous network schematically comprises macro base station (such as, MacroeNB) 110, small base station (such as Pico eNB) 120 and subscriber equipment (UE) 130.The coverage of macro base station 110 schematically illustrates with " macrocell (Macro Cell) ", and the coverage of small base station schematically illustrates with " small-cell (Small Cell) ".
As shown in Figure 1, in this heterogeneous network 100, macro base station 110 and small base station 120 carry out dual link with subscriber equipment 130.Subscriber equipment 130 can communicate with macro base station 110, also can communicate with small base station 120.Macro base station 110 comprises main RLC entity and small base station 120 comprises from RLC entity, wherein main RLC entity and jointly complete the function of rlc protocol from RLC entity.
For convenience of description, the wireless communication system shown in Fig. 1 illustrate only a macro base station, a low power nodes and a subscriber equipment, but those skilled in the art are appreciated that said system is only schematic instead of circumscribed completely.In an embodiment according to the present invention, one or more macro base station, one or more low power nodes and one or more subscriber equipment can be comprised in wireless communication system.
Fig. 2 is the flow chart supporting the RLC transmission method 200 in multi-link wireless communication system according to an embodiment of the invention.Method 200 shown in Fig. 2 can such as in FIG shown in wireless communication system or other suitable systems in realize, and can by macro base station or for those skilled in the art can other any suitable equipment perform.
After method 200 starts, in step S201, in downlink transmission, build down link RLC PDU at macro base station place, this RLC PDU comprises one or more RLC service data unit SDU.In step S202, RLC PDU is sent from macro base station to small base station, so that small base station is to user device transmissions.
According to embodiments of the invention, can to accomplish method 200 wireless communication system support multi-link, this system can comprise subscriber equipment and be connected at least one macro base station and at least one small base station with this subscriber equipment, wherein macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.
In an exemplary embodiment in accordance with the present invention, the number of the RLC SDU included by RLC PDU is fixing or variable, and this number can be determined according to system requirements or other concrete conditions by those skilled in the art.According to embodiments of the invention, the number of the RLC SDU be included in RLC PDU can be determined in several ways.Such as, the number of RLC SDU can be determined according to the long-term channel information of macro base station and small base station and/or load information.
According to TS36.322, rlc layer provides the data transfer mode of following several modes: Unacknowledged Mode (UM), affirmation mode (AM) and transparent mode (TM) etc.In affirmation mode, recipient can send control information to transmit leg (such as control PDU or status PDU), to notify that to transmit leg recipient has received which RLC PDU and/or RLC segmentation and which RLC PDU and/or RLC segmentation and has not been received.In Unacknowledged Mode, do not need to send control information from receive direction transmit leg as affirmation mode.For for embodiments of the invention, affirmation mode and Unacknowledged Mode are all applicable.Also namely, RLC pattern can be Unacknowledged Mode, also can be affirmation mode.
According to exemplary embodiment of the present invention, as optional step, method 200 can also comprise: if RLC pattern is affirmation mode and functions of retransmission is implemented in described macro base station place, then RLC PDU segmentation sent from macro base station to small base station.In this embodiment, macro base station not only sends RLC (as described in step S202) to small base station, can also send RLC PDU segmentation in addition to small base station.
In an exemplary embodiment in accordance with the present invention, the user plane framework that wireless communication system can adopt non-bearing to be separated, also can adopt the user plane framework that carrying is separated.As previously mentioned, these two kinds of user plane frameworks of 2D and 3D support distributed RLC, and also, main RLC entity is positioned at macro base station place, and is positioned at small base station from RLC entity.2D user plane framework is with the difference of 3D user plane framework: 2D user plane framework supports that non-bearing is separated, and 3D user plane framework supports that carrying is separated.Therefore, wireless communication system can adopt 2D user plane framework or 3D user plane framework according to an embodiment of the invention.Hereinafter, the user plane framework that non-bearing is separated corresponds to 2D user plane framework, and the user plane framework that carrying is separated corresponds to 3D user plane framework.
In one exemplary embodiment, wireless communication system adopts the user plane framework that non-bearing is separated according to an embodiment of the invention, and as optional step, method 200 can also comprise the operation relevant to the realization of functions of retransmission.Specifically, in response to receiving the control PDU from described subscriber equipment forwarded from described small base station, can realize functions of retransmission at macro base station place, wherein control PDU indicates the information relevant to data transmission state.Data transmission state such as can comprise about which data is received the information be not received with which data.In this embodiment, small base station, before forwarding the control PDU from described subscriber equipment, first can judge to have received control PDU or RLCPDU from subscriber equipment, and when judging to have received control PDU, control PDU directly be sent to macro base station.In this embodiment, as optional step, method 200 can also comprise following operation: the transmission window and the receive window that design the main RLC entity of macro base station according to the time delay on the interface (such as Xn interface) between macro base station and small base station, and expands for the length of the sequence number in the head of RLCPDU.By such operation, RLC transmission can be made more to adapt to concrete communication environment, thus improve robustness and reliability.In one embodiment, if Xn interface transmits based on IP, then the size of each PDU is conditional (such as, 1500 bytes).
In one exemplary embodiment, the wireless communication system user plane framework that non-bearing can be adopted to be separated according to an embodiment of the invention.In this embodiment, if control PDU ends in this small base station from user device transmissions to small base station, then functions of retransmission is realized at this small base station place.In this embodiment, as the optional step of method 200, another retransmission buffer can also be set to realize the re-transmission between this macro base station and small base station at macro base station place, thus the data loss problem alleviated on the interface between macro base station and small base station or solve this data loss problem.
According to exemplary embodiment of the present invention, generate polling message at the macro base station place or described small base station place realizing functions of retransmission.In other words, when functions of retransmission realizes at macro base station place, then generate polling message at macro base station place; And when functions of retransmission realizes at small base station place, then generate polling message at small base station place.Polling message can be one for obtaining the designator of control PDU.Polling message can be included in the head of RLC PDU, and can be embodied as poll bit in a particular embodiment, such as, comprise 1 bit or many bits.
About ul transmissions, embodiments of the invention comprise multiple implementation, specific as follows.
According to exemplary embodiment of the present invention, alternatively, in an uplink transmission, if be in macro base station place for the reception buffer zone of ul transmissions and the HARQ module that reorders, then can obtain without the up link RLCPDU reordered from small base station at macro base station place, extract polling message, and carry out reorder window according to the time delay on the interface between macro base station and small base station and design.
In an exemplary embodiment in accordance with the present invention, in an uplink transmission, be in small base station place for the reception buffer zone of ul transmissions and the HARQ module that reorders, now by the interface between macro base station and this small base station, up link RLCPDU be sent to macro base station by small base station.
According to exemplary embodiment of the present invention, the user plane framework that wireless communication system both can adopt carrying to be separated, also can adopt the user plane framework that non-bearing is separated.As optional step, in an uplink transmission, the up link RLC PDU from small base station can be received at macro base station place, wherein this up link RLC PDU reordered at small base station place, and polling message can be extracted at macro base station place according to up link RLC PDU, thus generate the control PDU of the instruction information relevant to data transmission state according to polling message.
According to exemplary embodiment of the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated.Alternatively, control PDU generates at macro base station place in an uplink transmission.Specifically, the polling message from small base station can be received at macro base station place, to generate control PDU according to polling message.This polling message small base station be in reorder before be acquired, and the form that this polling message is utilized new definition transmits.Also namely, according to the form of new definition, this polling message is transferred to macro base station from small base station.In another exemplary embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, alternatively, control PDU generates at small base station place in an uplink transmission.
According to exemplary embodiment of the present invention, the user plane framework that wireless communication system adopts carrying to be separated.Method 200 can comprise the following steps alternatively: in an uplink transmission, receives the up link RLC PDU sent from subscriber equipment at macro base station place, and extracts polling message according to up link RLC PDU, to generate control PDU according to polling message.
According to exemplary embodiment of the present invention, in an uplink transmission, removal RLC PDU camera function and SDU recombination function are in macro base station place.
According to exemplary embodiment of the present invention, the user plane framework that wireless communication system adopts carrying to be separated, and all controlling functions concentrate on macro base station place.
According to exemplary embodiment of the present invention, the user plane framework that wireless communication system adopts carrying to be separated.The RLC PDU retransmitted at macro base station and small base station place, RLC PDU segmentation and/or control PDU have the transmission priority higher than the RLC PDU of non-re-transmission; In other words, at macro base station place, if there is the RLC PDU of RLC PDU, RLC PDU segmentation and/or control PDU and non-re-transmission simultaneously, then the transmission of the RLC PDU to non-re-transmission to be had precedence over for the transmission of RLC PDU, RLC PDU segmentation and/or control PDU; Similarly, at small base station place, if there is the RLC PDU of RLC PDU, RLC PDU segmentation and/or control PDU and non-re-transmission simultaneously, then to have precedence over the transmission of the RLC PDU to non-re-transmission for the transmission of RLC PDU, RLC PDU segmentation and/or control PDU.According to exemplary embodiment of the present invention, RLC PDU, RLCPDU segmentation of re-transmission and/or control PDU have at macro base station place than the transmission priority higher at small base station place; That is, when there is RLC PDU, RLCPDU segmentation and/or control PDU that retransmit, and user is when the link with macro base station and small base station all allows to transmit, on the link of macro base station and user, preferentially transmit RLC PDU, RLCPDU segmentation and/or the control PDU of re-transmission.According to exemplary embodiment of the present invention, polling message has at macro base station place than the transmission priority higher at small base station place; In other words, when there is polling message and will sending, and user is when the link with macro base station and small base station all allows to transmit, preferentially at macro base station place transmission polling message.
According to exemplary embodiment of the present invention, the user plane framework that wireless communication system adopts carrying to be separated.In RLC PDU transmitting procedure, the RLC PDU sent by user and small base station link may not receive RLC PDU owing to the problem subscriber equipment such as to postpone, thus send repeat requests to macro base station, and in macro base station retransmission processes, subscriber equipment likely can receive this RLC PDU thus send confirmation to macro base station.Now, if small base station proceeds to retransmit, then the wasting of resources may be caused.For this situation, exemplary embodiment of the present invention comprises the steps: the repeat requests sent in response to subscriber equipment does not receive the RLC PDU from small base station transmission alternatively, retransmits RLC PDU at macro base station place; And if macro base station receives the confirmation information, then send delete command, to avoid redundant transmission to small base station.
Fig. 3 is the flow chart supporting the RLC transmission method 300 in multi-link wireless communication system according to an embodiment of the invention.Method 300 shown in Fig. 3 can such as in FIG shown in wireless communication system or other suitable systems in realize, and can by small base station or for those skilled in the art can other any suitable equipment perform.
Method 300 in step S301, in downlink transmission, receives the RLC PDU built by macro base station after starting from macro base station at small base station place.In step S302, at small base station place, received RLC PDU is split and cascade, again to user device transmissions.
According to embodiments of the invention, can to accomplish method 300 wireless communication system support multi-link, this system can comprise subscriber equipment and be connected at least one macro base station and at least one small base station with this subscriber equipment, wherein macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.
In an exemplary embodiment in accordance with the present invention, if RLC pattern is affirmation mode and functions of retransmission is implemented in macro base station place, then except described RLC PDU, RLC PDU segmentation is also sent to small base station by macro base station, now except receiving from except the RLC PDU of macro base station in step S301, the RLC PDU segmentation from macro base station can also be received at small base station place.
In an exemplary embodiment in accordance with the present invention, wireless communication system adopts the user plane framework that non-bearing is separated.Alternatively, in method 300, if control PDU ends in small base station from user device transmissions to small base station, then functions of retransmission can be realized at small base station.Control PDU is also referred to as status PDU, and it can indicate the information relevant to data transmission state.In this embodiment, can also generate polling message at the small base station place realizing functions of retransmission, this polling message is for obtaining control PDU.
According to exemplary embodiment of the present invention, that method 300 can comprise the steps: that small base station judges to receive alternatively is control PDU or RLCPDU from subscriber equipment; When judge to receive be control PDU time, control PDU is directly sent to macro base station, to realize functions of retransmission at macro base station place.
According to exemplary embodiment of the present invention, in method 300, alternatively, can arrange at small base station place in an uplink transmission and be used for the reception buffer zone of ul transmissions and HARQ and to reorder module, and by the interface (such as Xn interface) between macro base station and this small base station, up link RLC PDU can be sent to this macro base station at small base station place.
In an exemplary embodiment in accordance with the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, in an uplink transmission, control PDU can generate at macro base station place, also can generate at small base station place.In one embodiment, control PDU macro base station place generate, now method 300 can comprise alternatively: in an uplink transmission, small base station be in reorder before obtain polling message; And polling message is transferred to macro base station according to the form of new definition from small base station, so that macro base station generates control PDU according to polling message.In another embodiment, method 300 can comprise the steps: in an uplink transmission alternatively, generates control PDU at small base station place.
According to one exemplary embodiment of the present invention, if determine that RLC PDU is successfully received, then send a designator from small base station to macro base station, to indicate RLC PDU transmission success.According to another exemplary embodiment of the present invention, the multiple RLC PDU received for success generate multiple designator to indicate multiple RLC PDU transmission success, and when the number of designator generated reaches predetermined number, multiple designator is integrated into one and assembles to send in designator and to macro base station and assemble designator.According to another exemplary embodiment of the present invention, the multiple RLC PDU received for success in scheduled time slot generate multiple designator to indicate multiple RLC PDU transmission success, and the multiple designators generated in scheduled time slot are integrated into one and assemble to send in designator and to macro base station and assemble designator.According to Still another example embodiment of the present invention, for the multiple RLC PDU be associated with the multiple Data Radio Bearer DRB from one or more subscriber equipment generate multiple designator, to indicate multiple RLC PDU transmission success, and multiple designator is arranged in same Indication message come send to macro base station.
As mentioned above, user plane framework comprises: the user plane frameworks such as 1A, 2A, 2B, 2C, 2D, 3A, 3B, 3C and 3D, and they divide according to carrying and user-plane protocol stack etc.For these two kinds of user plane frameworks of 2C and 3C, after subscriber equipment accesses macrocell and foundation is connected with the wireless heterogeneous networks (RRC) of macrocell, UE has a RRC and connects.When macrocell find that there is a small-cell to unload the business for this subscriber equipment time, macrocell can be this user device configuration dual link.If affirmation mode (AM) Data Radio Bearer (DRB) is discharged into small-cell, and if dual link adopts 2C or 3C user plane framework, then when the RLC entity being positioned at small base station confirms successfully to have transmitted RLC SDU (namely during PDCP PDU), RLC entity in small base station can send designator, with the Successful transmissions of designation data to the PDCP entity be in macro base station.
According to embodiments of the invention, above-mentioned designator can send in several ways.In one embodiment, when PDCP (PDCP) PDU is passed through small base station Successful transmissions, small base station sends a designator to macro base station, to notify that this RLC SDU of macro base station (that is, PDCP PDU) is delivered successfully.In a kind of alternate embodiment, in order to reduce the number of the designator that will send, multiple designator is integrated into one by small base station to be assembled to send in designator and to macro base station and assembles designator.In another kind of alternate embodiment, in order to reduce the number of the designator that will send, the multiple designators generated in scheduled time slot are integrated into one by small base station to be assembled to send in designator and to macro base station and assembles designator.In another alternate embodiment, the multiple designators be associated with the multiple DRB from one or more subscriber equipment are arranged on same Indication message by small base station, and this Indication message is sent to macro base station.Designator send mode according to an embodiment of the invention, can reduce the signaling consumption on the interface (such as, Xn interface) between small base station and macro base station, reduces and postpones and loss.Macro base station can know the transmission state of small base station simultaneously, and then implements flow control.
Fig. 4 is the block diagram supporting the RLC transmission equipment 400 in multi-link wireless communication system according to an embodiment of the invention.Equipment 400 shown in Fig. 4 can macro base station or those skilled in the art can other any suitable equipment in realize.
According to embodiments of the invention, the wireless communication system that can realize equipment 400 is supported multi-link, this system can comprise subscriber equipment and be connected at least one macro base station and at least one small base station with this subscriber equipment, wherein macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.
In an embodiment according to the present invention, equipment 400 can comprise: composer 410, is arranged in downlink transmission, and build down link RLC PDU at macro base station place, RLC PDU comprises one or more RLC service data unit SDU; And transmitter 420, be arranged to and RLC PDU is sent to small base station from macro base station, so that small base station is to user device transmissions.
In an embodiment according to the present invention, the number of multiple RLC SDU is fixing or variable, and composer 410 comprises: number decision unit, be arranged to the number determining RLC SDU according to the long-term channel information of macro base station and small base station and/or load information.
In an embodiment according to the present invention, RLC pattern can be Unacknowledged Mode, or RLC pattern can be affirmation mode.
In an embodiment according to the present invention, the transmitter of equipment 400 can be arranged to, if RLC pattern is affirmation mode and functions of retransmission is implemented in macro base station place, then also RLC PDU segmentation is sent from macro base station to small base station except RLC PDU.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, equipment 400 can also comprise: functions of retransmission realizes unit, be arranged in response to receiving the control PDU from subscriber equipment forwarded from small base station, at macro base station, place realizes functions of retransmission, and wherein control PDU indicates the information relevant to data transmission state.In one embodiment, small base station is before forwarding the control PDU from subscriber equipment, and judgement have received control PDU or RLC is PDU, and when judging to have received control PDU, control PDU is directly sent to macro base station.
In an embodiment according to the present invention, equipment 400 can also comprise: designer, be arranged to according to the time delay on the interface between macro base station and small base station, the transmission window of the main RLC entity of design macro base station and receive window, and be arranged to the length of the sequence number in the head of expansion RLCPDU.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, if control PDU is from user device transmissions to small base station and end in small base station, then realize functions of retransmission at small base station place, wherein control PDU indicates the information relevant to data transmission state.In one embodiment, equipment 400 can also comprise: additional retransmissions functional realiey unit, be arranged to, at macro base station place, another retransmission buffer be set to realize the re-transmission between macro base station and small base station, to alleviate or to solve the data loss problem on the interface between macro base station and small base station.
In an embodiment according to the present invention, generate polling message at the macro base station place or small base station place realizing functions of retransmission, polling message is for obtaining control PDU.
In an embodiment according to the present invention, equipment 400 can also be arranged in an uplink transmission, if be in macro base station for the reception buffer zone of ul transmissions and the HARQ module that reorders, then obtain without the up link RLCPDU reordered from small base station, extract polling message, and design according to the time delay reorder window on the interface between macro base station and small base station.
In an embodiment according to the present invention, in an uplink transmission, be in small base station for the reception buffer zone of ul transmissions and the HARQ module that reorders, and wherein by the interface between macro base station and small base station, up link RLC PDU be sent to macro base station by small base station.
In an embodiment according to the present invention, wireless communication system adopts user plane framework that is that carrying is separated or non-bearing separation, equipment 400 can also comprise: receiver, be arranged in an uplink transmission, receive the up link RLC PDU from small base station at macro base station place, wherein up link RLC PDU reordered at small base station place; And extractor, be arranged to and extract polling message at macro base station place according to up link RLC PDU, to generate control PDU according to polling message, wherein control PDU indicates the information relevant to data transmission state.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, equipment 400 can also comprise: receiver, be arranged to, in an uplink transmission, the polling message from small base station is received at macro base station place, to generate control PDU according to polling message, wherein control PDU indicates the information relevant to data transmission state, and wherein polling message be small base station be in reorder before be acquired and be transferred to macro base station according to the form newly defined from small base station.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, control PDU generates at small base station place in an uplink transmission, and control PDU indicates the information relevant to data transmission state.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts carrying to be separated, equipment 400 can also comprise: receiver, is arranged in an uplink transmission, receives the up link RLC PDU sent from subscriber equipment at macro base station place; And extractor, be arranged to and extract polling message at macro base station place according to up link RLC PDU, to generate control PDU according to polling message, wherein control PDU indicates the information relevant to data transmission state.
In an embodiment according to the present invention, in an uplink transmission, removal RLC PDU camera function and SDU recombination function are in macro base station place.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts carrying to be separated, and all controlling functions concentrate on macro base station place.
In an embodiment according to the present invention, wireless communication system adopts the user plane framework that carrying is separated.The RLC PDU retransmitted at macro base station and small base station place, RLC PDU segmentation and/or control PDU have the transmission priority higher than the RLC PDU of non-re-transmission, RLC PDU, RLCPDU segmentation retransmitted and/or control PDU have than the transmission priority higher at small base station place at macro base station place, and polling message has than the transmission priority higher at small base station place at macro base station place.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts carrying to be separated, wherein equipment 400 can also comprise: retransmit device, be arranged to the repeat requests sent in response to subscriber equipment does not receive RLC PDU, retransmits RLC PDU at macro base station place; And delete command transmitter, if be arranged to macro base station to receive the confirmation information, then send delete command, to avoid redundant transmission to small base station.
Fig. 5 is the block diagram supporting the RLC transmission equipment 500 in multi-link wireless communication system according to an embodiment of the invention.Equipment 500 shown in Fig. 5 can small base station or those skilled in the art can other any suitable equipment in realize.
According to embodiments of the invention, the wireless communication system that can realize equipment 500 is supported multi-link, this system can comprise subscriber equipment and be connected at least one macro base station and at least one small base station with this subscriber equipment, wherein macro base station comprises main RLC entity and small base station comprises from RLC entity, main RLC entity and jointly complete the function of rlc protocol from RLC entity.
In an embodiment according to the present invention, equipment 500 can comprise: receiver 510, is arranged in downlink transmission, receives the RLC PDU built by macro base station at small base station place from macro base station; And split and cascade device 520, be arranged to and at small base station place, received RLC PDU split and cascade, again to user device transmissions.
In an embodiment according to the present invention, if receiver 510 is also arranged to RLC pattern be affirmation mode and functions of retransmission is implemented in macro base station place, then receive the RLC PDU segmentation from macro base station at small base station place.
In an embodiment according to the present invention, wherein wireless communication system adopts the user plane framework that non-bearing is separated, equipment 500 can also comprise: functions of retransmission realizes unit, small base station is ended in if be arranged to control PDU from user device transmissions to small base station, then realize functions of retransmission at small base station, wherein control PDU indicates the information relevant to data transmission state.
In an embodiment according to the present invention, equipment 500 can also comprise: maker, and the small base station place be arranged to realizing functions of retransmission generates polling message, and polling message is for obtaining control PDU.
In an embodiment according to the present invention, equipment 500 can also comprise: determining device, be arranged to judge have received from subscriber equipment control PDU or RLC PDU; Transmitter, is arranged to when judging to have received control PDU, control PDU is directly sent to macro base station, to realize functions of retransmission at macro base station place.
In an embodiment according to the present invention, wherein arrange at small base station place and be used for the reception buffer zone of ul transmissions and HARQ and reorder module, equipment 500 can also comprise: transmitter, is arranged to and by the interface between macro base station and small base station, up link RLC PDU is sent to macro base station at small base station place.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, equipment 500 can also comprise: polling message getter, is arranged in an uplink transmission, small base station be in reorder before obtain polling message; And polling message transmitter, be arranged to and polling message is transferred to macro base station according to the form of new definition from small base station, so that macro base station generates control PDU according to polling message, wherein control PDU indicates the information relevant to data transmission state.
In an embodiment according to the present invention, the user plane framework that wireless communication system adopts non-bearing to be separated, equipment 500 can also comprise: control PDU maker, be arranged in an uplink transmission, generate control PDU at small base station place, wherein control PDU indicates the information relevant to data transmission state.
In an embodiment according to the present invention, equipment 500 can also comprise: designator transmitter, is arranged to: if determine that RLC PDU is successfully received, then send a designator from small base station to macro base station, to indicate RLC PDU transmission success; Or be that the multiple RLC PDU successfully received generate multiple designator to indicate multiple RLC PDU transmission success, and when the number of designator generated reaches predetermined number, multiple designator is integrated into one and assembles to send in designator and to macro base station and assemble designator; Or the multiple RLC PDU received for success in scheduled time slot generate multiple designator to indicate multiple RLC PDU transmission success, and the multiple designators generated in scheduled time slot are integrated into one and assemble to send in designator and to macro base station and assemble designator; Or for the multiple RLC PDU be associated with the multiple Data Radio Bearer DRB from one or more subscriber equipment generate multiple designator, to indicate multiple RLC PDU transmission success, and multiple designator is arranged in same Indication message come send to macro base station.
Should be appreciated that the structured flowchart described in Fig. 4 and Fig. 5 illustrates just to the object of example, is not limitation of the present invention.In some cases, some device/unit wherein can be added or reduce as required.
Method disclosed in embodiments of the present invention can realize in the combination of software, hardware or software and hardware.Hardware components can utilize special logic to realize; Software section can store in memory, and by suitable instruction execution system, such as microprocessor, personal computer (PC) or large-scale computer perform.In a preferred embodiment, the present invention is embodied as software, and it includes but not limited to firmware, resident software, microcode etc.
And embodiments of the present invention can also be taked can from the form of the computer program that computer can be used or computer-readable medium is accessed, and these media provide program code use for computer or any instruction execution system or be combined with it.For the purpose of description, computer can with or computer-readable mechanism can be any tangible device, it can comprise, store, communicate, propagate or transmission procedure with by instruction execution system, device or equipment use or be combined with it.
Medium can be electric, magnetic, light, electromagnetism, ultrared or the system of semiconductor (or device or device) or propagation medium.The example of computer-readable medium comprises semiconductor or solid-state memory, tape, removable computer diskette, random access storage device (RAM), read-only memory (ROM), hard disc and CD.The example of current CD comprises compact disk-read-only memory (CD-ROM), compact disk-read/write (CD-R/W) and DVD.
The system being suitable for storage/or execution program code according to the embodiment of the present invention will comprise at least one processor, and it directly or by system bus is coupled to memory component indirectly.Local storage, mass storage that memory component utilizes the term of execution of can being included in program code actual and provide the interim storage of program code at least partially the cache memory of the number of times of code must be fetched the term of execution of minimizing from mass storage.
It should be noted that to make embodiments of the present invention be easier to understand, it be known and for embodiments of the present invention realization for a person skilled in the art may be required some ins and outs more specifically that description above eliminates.
There is provided specification of the present invention to be to illustrate and describing, instead of be used for exhaustive or limit the invention to disclosed form.For those of ordinary skill in the art, many modifications and changes are all fine.
Therefore; selecting and describing execution mode is to explain principle of the present invention and practical application thereof better; and those of ordinary skill in the art are understood, under the prerequisite not departing from essence of the present invention, all modifications and change all fall within protection scope of the present invention defined by the claims.
Claims (31)
1. supporting the wireless spread-spectrum technology RLC transmission method in multi-link wireless communication system for one kind, at least two base stations that wherein said wireless communication system comprises subscriber equipment and is connected with described subscriber equipment, described at least two base stations comprise at least one macro base station and at least one small base station, described macro base station comprises main RLC entity and described small base station comprises from RLC entity, described main RLC entity and the described function jointly completing rlc protocol from RLC entity, described method comprises:
In downlink transmission, build down link RLC PDU at macro base station place, described RLC PDU comprises one or more RLC service data unit SDU; And
Described RLC PDU is sent from described macro base station to described small base station, so that described small base station is to described user device transmissions.
2. method according to claim 1, the number of wherein said multiple RLC SDU is fixing or variable, and wherein comprises at macro base station place structure down link RLC PDU:
The number of described RLC SDU is determined according to the long-term channel information of described macro base station and described small base station and/or load information.
3. method according to claim 1, wherein RLC pattern is Unacknowledged Mode or affirmation mode.
4. method according to claim 1, also comprises:
If RLC pattern is affirmation mode and functions of retransmission is implemented in described macro base station place, then also RLC PDU segmentation is sent from described macro base station to described small base station except described RLC PDU.
5. method according to claim 1, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, described method also comprises:
In response to receiving the control PDU from described subscriber equipment forwarded from described small base station, realize functions of retransmission at described macro base station place, wherein said control PDU indicates the information relevant to data transmission state.
6. method according to claim 5, wherein said small base station is before forwarding the control PDU from described subscriber equipment, judge to have received control PDU or RLCPDU, and when judging to have received control PDU, described control PDU is directly sent to described macro base station.
7. method according to claim 5, also comprises:
According to the time delay on the interface between described macro base station and described small base station, design transmission window and the receive window of the main RLC entity of described macro base station; And
Expand the length of the sequence number in the head of described RLC PDU.
8. method according to claim 1, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, if and wherein control PDU ends in described small base station from described user device transmissions to described small base station, then realize functions of retransmission at described small base station place, wherein said control PDU indicates the information relevant to data transmission state.
9. method according to claim 8, also comprises:
Another retransmission buffer is set to realize the re-transmission between described macro base station and described small base station, to alleviate or to solve the data loss problem on the interface between described macro base station and described small base station at described macro base station place.
10. the method according to any one of claim 5 to 9, wherein generate polling message at the described macro base station place or described small base station place that realize functions of retransmission, described polling message is for obtaining described control PDU.
11. methods according to claim 1, also comprise:
In an uplink transmission, if be in described macro base station for the reception buffer zone of ul transmissions and the HARQ module that reorders, then obtain without the up link RLC PDU reordered from described small base station at described macro base station place, extract polling message, and design according to the time delay reorder window on the interface between described macro base station and described small base station.
12. methods according to claim 1, wherein in an uplink transmission, be in described small base station for the reception buffer zone of ul transmissions and the HARQ module that reorders, and wherein by the interface between described macro base station and described small base station, up link RLC PDU be sent to described macro base station by described small base station.
13. methods according to claim 1, wherein said wireless communication system adopts user plane framework that is that carrying is separated or non-bearing separation, and described method also comprises:
In an uplink transmission, receive the up link RLC PDU from described small base station at described macro base station place, wherein said up link RLC PDU reordered at described small base station place; And
Extract polling message at described macro base station place according to described up link RLC PDU, to generate control PDU according to described polling message, wherein said control PDU indicates the information relevant to data transmission state.
14. methods according to claim 1, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, described method also comprises:
In an uplink transmission, the polling message from described small base station is received at described macro base station place, to generate control PDU according to described polling message, wherein said control PDU indicates the information relevant to data transmission state, and wherein said polling message be described small base station be in reorder before be acquired and be transferred to described macro base station according to the form newly defined from described small base station.
15. methods according to claim 1, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, control PDU generates at described small base station place in an uplink transmission, and described control PDU indicates the information relevant to data transmission state.
16. methods according to claim 1, the user plane framework that wherein said wireless communication system adopts carrying to be separated, described method also comprises:
In an uplink transmission, the up link RLC PDU sent from described subscriber equipment is received at described macro base station place; And
Extract polling message at described macro base station place according to described up link RLC PDU, to generate control PDU according to described polling message, wherein said control PDU indicates the information relevant to data transmission state.
17. methods according to claim 1, wherein in an uplink transmission, removal RLC PDU camera function and SDU recombination function are in described macro base station place.
18. methods according to claim 1, the user plane framework that wherein said wireless communication system adopts carrying to be separated, and wherein all controlling functions concentrate on described macro base station place.
19. methods according to claim 1, the user plane framework that wherein said wireless communication system adopts carrying to be separated, the RLC PDU wherein retransmitted at described macro base station and described small base station place, RLC PDU segmentation and/or control PDU have the transmission priority higher than the RLCPDU of non-re-transmission
RLC PDU, RLCPDU segmentation wherein retransmitted and/or control PDU have than the transmission priority higher at described small base station place at described macro base station place, and
Wherein polling message has than the transmission priority higher at described small base station place at described macro base station place.
20. methods according to claim 1, the user plane framework that wherein said wireless communication system adopts carrying to be separated, described method also comprises:
Do not receive the RLC PDU sent from described small base station and the repeat requests sent in response to subscriber equipment, retransmit described RLC PDU at described macro base station place; And
If described macro base station receives the confirmation information, then send delete command, to avoid redundant transmission to described small base station.
Supporting the wireless spread-spectrum technology RLC transmission method in multi-link wireless communication system for 21. 1 kinds, at least two base stations that wherein said wireless communication system comprises subscriber equipment and is connected with described subscriber equipment, described at least two base stations comprise at least one macro base station and at least one small base station, described macro base station comprises main RLC entity and described small base station comprises from RLC entity, described main RLC entity and the described function jointly completing rlc protocol from RLC entity, described method comprises:
In downlink transmission, receive the RLC PDU built by described macro base station from described macro base station at described small base station place; And
At described small base station place, received RLC PDU is split and cascade again, to described user device transmissions.
22. methods according to claim 21, also comprise:
If RLC pattern is affirmation mode and functions of retransmission is implemented in described macro base station place, then receive the RLC PDU segmentation from described macro base station at described small base station place.
23. methods according to claim 21, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, described method also comprises:
If control PDU is from described user device transmissions to described small base station and end in described small base station, then realize functions of retransmission at described small base station, wherein said control PDU indicates the information relevant to data transmission state.
24. methods according to claim 23, also comprise:
Generate polling message at the described small base station place realizing functions of retransmission, described polling message is for obtaining described control PDU.
25. methods according to claim 21, also comprise:
Described small base station judge to have received from described subscriber equipment control PDU or RLC PDU;
When judging to have received described control PDU, described control PDU is directly sent to described macro base station, to realize functions of retransmission at described macro base station place.
26. methods according to claim 21, also comprise:
In an uplink transmission, arrange the reception buffer zone being used for ul transmissions and HARQ to reorder module at described small base station place; And
By the interface between described macro base station and described small base station, up link RLC PDU is sent to described macro base station at described small base station place.
27. methods according to claim 21, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, described method also comprises:
In an uplink transmission, described small base station be in reorder before obtain polling message; And
Described polling message is transferred to described macro base station according to the form of new definition from described small base station, so that described macro base station generates control PDU according to described polling message, wherein said control PDU indicates the information relevant to data transmission state.
28. methods according to claim 21, the user plane framework that wherein said wireless communication system adopts non-bearing to be separated, described method also comprises:
In an uplink transmission, generate control PDU at described small base station place, wherein said control PDU indicates the information relevant to data transmission state.
29. methods according to claim 21, also comprise:
If determine that described RLC PDU is successfully received, then send a designator from described small base station to described macro base station, to indicate described RLC PDU transmission success; Or
The multiple RLC PDU received for success generate multiple designator to indicate described multiple RLC PDU transmission success, and when the number of designator generated reaches predetermined number, described multiple designator is integrated into one and assembles in designator and to send described gathering designator to described macro base station; Or
The multiple RLC PDU received for success in scheduled time slot generate multiple designator to indicate described multiple RLC PDU transmission success, and the described multiple designator generated in described scheduled time slot are integrated into one and assemble in designator and to send described gathering designator to described macro base station; Or
For the multiple RLC PDU be associated with the multiple Data Radio Bearer DRB from one or more subscriber equipment generate multiple designator, to indicate described multiple RLC PDU transmission success, and described multiple designator is arranged in same Indication message sends to described macro base station.
Supporting the wireless spread-spectrum technology RLC transmission equipment in multi-link wireless communication system for 30. 1 kinds, at least two base stations that wherein said wireless communication system comprises subscriber equipment and is connected with described subscriber equipment, described at least two base stations comprise at least one macro base station and at least one small base station, described macro base station comprises main RLC entity and described small base station comprises from RLC entity, described main RLC entity and the described function jointly completing rlc protocol from RLC entity, described equipment comprises:
Composer, is arranged in downlink transmission, and build down link RLC PDU at macro base station place, described RLC PDU comprises one or more RLC service data unit SDU; And
Transmitter, is arranged to and is sent to described small base station from described macro base station by described RLC PDU, so that described small base station is to described user device transmissions.
Supporting the wireless spread-spectrum technology RLC transmission equipment in multi-link wireless communication system for 31. 1 kinds, at least two base stations that wherein said wireless communication system comprises subscriber equipment and is connected with described subscriber equipment, described at least two base stations comprise at least one macro base station and at least one small base station, described macro base station comprises main RLC entity and described small base station comprises from RLC entity, described main RLC entity and the described function jointly completing rlc protocol from RLC entity, described equipment comprises:
Receiver, is arranged in downlink transmission, receives the RLC PDU built by described macro base station at described small base station place from described macro base station; And
Segmentation and cascade device, be arranged to and again split and cascade received RLCPDU at described small base station place, to described user device transmissions.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470439A (en) * | 2015-08-17 | 2017-03-01 | 三星电子株式会社 | The method that the PDCP of user equipment controls PDU transmission |
| CN107276922A (en) * | 2016-04-06 | 2017-10-20 | 中国移动通信有限公司研究院 | Data transmission method, RLC entities, total link unit and branch linking element |
| WO2017185941A1 (en) * | 2016-04-29 | 2017-11-02 | 电信科学技术研究院 | Data transmission method and relevant device |
| CN107453885A (en) * | 2016-05-30 | 2017-12-08 | 中国移动通信有限公司研究院 | A kind of information configuring methods and base station, user equipment |
| CN107809771A (en) * | 2016-09-08 | 2018-03-16 | 中国移动通信有限公司研究院 | Data transmission method, C RLC entities, D RLC entities and minizone MAC entity |
| WO2018201498A1 (en) * | 2017-05-05 | 2018-11-08 | 华为技术有限公司 | Data receiving state reporting method and apparatus |
| CN108964945A (en) * | 2017-05-18 | 2018-12-07 | 华为技术有限公司 | A kind of configuration method, data receiver method and relevant device |
| CN110741722A (en) * | 2017-04-10 | 2020-01-31 | 诺基亚技术有限公司 | Control mechanism for packet replication in multi-connection communication |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589565A (en) * | 2006-11-27 | 2009-11-25 | 三星电子株式会社 | Method and apparatus for data transmission of radio link control layer in mobile communication system |
| CN101795494A (en) * | 2009-02-03 | 2010-08-04 | 中国移动通信集团公司 | Method, device and system for data distribution in LET-A system |
| EP2604076A1 (en) * | 2010-08-13 | 2013-06-19 | Intel Corporation | Base station selection method for heterogeneous overlay networks |
-
2013
- 2013-09-27 CN CN201310451217.XA patent/CN104519534B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589565A (en) * | 2006-11-27 | 2009-11-25 | 三星电子株式会社 | Method and apparatus for data transmission of radio link control layer in mobile communication system |
| CN101795494A (en) * | 2009-02-03 | 2010-08-04 | 中国移动通信集团公司 | Method, device and system for data distribution in LET-A system |
| EP2604076A1 (en) * | 2010-08-13 | 2013-06-19 | Intel Corporation | Base station selection method for heterogeneous overlay networks |
Non-Patent Citations (2)
| Title |
|---|
| BLACKBERRY UK LIMITED: "Further Discussion on U-Plane Protocol Architecture Designs", 《3GPP TSG RAN WG2 MEETING #83 R2-132442》 * |
| LG ELECTRONICS INC.: "RLC impacts in Master-Slave RLC architectures", 《3GPP TSG-RAN WG2 MEETING #83 R2-132499》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470439A (en) * | 2015-08-17 | 2017-03-01 | 三星电子株式会社 | The method that the PDCP of user equipment controls PDU transmission |
| CN107276922B (en) * | 2016-04-06 | 2020-01-17 | 中国移动通信有限公司研究院 | Data transmission method, RLC entity, total link unit and branched link unit |
| CN107276922A (en) * | 2016-04-06 | 2017-10-20 | 中国移动通信有限公司研究院 | Data transmission method, RLC entities, total link unit and branch linking element |
| WO2017185941A1 (en) * | 2016-04-29 | 2017-11-02 | 电信科学技术研究院 | Data transmission method and relevant device |
| CN107453885A (en) * | 2016-05-30 | 2017-12-08 | 中国移动通信有限公司研究院 | A kind of information configuring methods and base station, user equipment |
| CN107809771B (en) * | 2016-09-08 | 2021-08-06 | 中国移动通信有限公司研究院 | Data transmission method, C-RLC entity, D-RLC entity and inter-cell MAC entity |
| CN107809771A (en) * | 2016-09-08 | 2018-03-16 | 中国移动通信有限公司研究院 | Data transmission method, C RLC entities, D RLC entities and minizone MAC entity |
| CN110741722A (en) * | 2017-04-10 | 2020-01-31 | 诺基亚技术有限公司 | Control mechanism for packet replication in multi-connection communication |
| WO2018201498A1 (en) * | 2017-05-05 | 2018-11-08 | 华为技术有限公司 | Data receiving state reporting method and apparatus |
| US11219091B2 (en) | 2017-05-05 | 2022-01-04 | Huawei Technologies Co., Ltd. | Data receiving status reporting method and apparatus |
| US11672046B2 (en) | 2017-05-05 | 2023-06-06 | Huawei Technologies Co., Ltd. | Data receiving status reporting method and apparatus |
| CN108964945A (en) * | 2017-05-18 | 2018-12-07 | 华为技术有限公司 | A kind of configuration method, data receiver method and relevant device |
| CN108964945B (en) * | 2017-05-18 | 2021-09-14 | 华为技术有限公司 | Configuration method, data receiving method and related equipment |
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