CN105934971B

CN105934971B - For the technology that dynamic Ground Split carries between various access technologies (RAT)

Info

Publication number: CN105934971B
Application number: CN201580003424.6A
Authority: CN
Inventors: O·厄兹蒂尔克; A·古普塔; G·B·霍恩; 魏永斌
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2014-12-19
Filing date: 2015-02-25
Publication date: 2019-09-13
Anticipated expiration: 2035-02-25
Also published as: CN105934971A

Abstract

Provide method for wireless communications, device and computer program product.The device determination will via the first communication link using the first wireless access technology (RAT) come the first dosis refracta of the first data flow serviced to UE, determination will via the second communication link using the 2nd RAT come the second dosis refracta of the first data flow serviced to UE, and using the first communication link come to the first dosis refracta of UE first class services data flow.

Description

For the technology that dynamic Ground Split carries between various access technologies (RAT)

Cross-reference to related applications

The application enjoys the equity of following application: in entitled " the TECHNIQUES FOR that on December 31st, 2013 submits DYNAMICALLY SPLITTING BEARERS BETWEEN VARIOUS RADIO ACCESS TECHNOLOGIES (RATS) " U.S. Provisional Application sequence No.61/922,738, and submit on December 19th, 2014 entitled “TECHNIQUES FOR DYNAMICALLY SPLITTING BEARERS BETWEEN VARIOUS RADIO ACCESS The U.S. Patent application No.14/578 of TECHNOLOGIES (RATS) ", 234, therefore by reference define entire contents Ground is incorporated herein.

Technical field

In summary, this disclosure relates to communication systems, more specifically in various wireless access technologys (RAT) technology that dynamic Ground Split carries between.

Background technique

Wireless communication system is widely deployed to provide such as phone, video, data, messaging and broadcast etc Various telecommunications service.Typical wireless communication system can using can by share available system resource (for example, bandwidth, Transmission power) support the multiple access technology with the communication of multiple users.The example of this multiple access technology includes CDMA (CDMA) system, time division multiple acess (TDMA) system, frequency division multiple access (FDMA) system, orthogonal frequency division multiple access (OFDMA) system, single load Wave frequency division multiple access (SC-FDMA) system and TD SDMA (TD-SCDMA) system.

These multiple access technologies have been adopted in various telecommunication standards, enable different wireless devices in city to provide City, country, area, the common protocol communicated in even global level.A kind of example of emerging telecommunication standard is long-term Evolution (LTE).LTE is the mobile standard of Universal Mobile Communication System (UMTS) by third generation partner program (3GPP) publication Enhancing set.LTE is designed to service by raising spectrum efficiency, reduction expense, improvement, preferably be supported using new frequency spectrum Mobile broadband linking Internet, and on downlink (DL) use OFDMA, on uplink (UL) use SC- Other open standards of FDMA and use multiple-input and multiple-output (MIMO) antenna technology are preferably integrated.But with Demand to mobile broadband access continues to increase, and exists to the further improved demand in LTE technology.Preferably, these change Into the telecommunication standard that should apply to these technologies of other multiple access technologies and use.

Summary of the invention

This document describes the technologies for the dynamic Ground Split carrying between various wireless access technologys (RAT).In this public affairs It opens in the aspect of content, provides a method, computer program product and device.Described device determination will be via the first communication For link using the first RAT come the first dosis refracta of the first data flow serviced to user equipment (UE), determination is logical via second Believe link using the 2nd RAT come the second dosis refracta of first data flow serviced to the UE, and use described first Communication link services first dosis refracta of first data flow to the UE.

In an aspect, described the second of first dosis refracta of first data flow or first data flow At least one of dosis refracta is determined based on configuration or majorized function.In an aspect, the majorized function is based on At least one of the following: data flow to each in distribution, the first RAT and the 2nd RAT of communication link Each of the channel conditions of a RAT, the first RAT and the 2nd RAT state of affairs of RAT, the first RAT and The resource of 2nd RAT, the channel loading of first communication link and second communication link or described first are led to Believe link and the data rate on second communication link and the difference between delay.

In an aspect, described device is sent using the first RAT to the UE via first communication link Control information for first data flow and the control information for being directed to first data flow is received from the UE, or Send the control letter for being directed to first data flow to the UE using the 2nd RAT via second communication link Breath and the control information that first data flow is directed to from UE reception.In an aspect, the control information Including at least one of the following: logical for configuring each of first communication link and second communication link Believe that wireless heterogeneous networks (RRC) message, wireless spread-spectrum technology (RLC) message and packet data of the fractional transmission of chain road are converged Poly- agreement (PDCP) status message.

In an aspect, described device is received using the first RAT from the UE via first communication link For the feedback information of first data flow, received using the 2nd RAT from the UE via second communication link For the feedback information of first data flow, or the feedback for being directed to first data flow is received according to the 2nd RAT Information.In an aspect, the feedback information includes at least one feedback message, at least one described feedback message includes UE Measurement result and the 2nd RAT measurement result.In an aspect, first dosis refracta of first data flow and described Two dosis refractas based on the optimization to system utility, the optimization to system utility can between carrying use ratio it is fair.

In an aspect, described device determination will use described first via first communication link by the UE RAT will use second via second communication link by the UE come the third dosis refracta of the second data flow sent, determination RAT receives institute from the UE come the 4th dosis refracta of second data flow sent, and via first communication link State the third dosis refracta of the second data flow.In an aspect, first data flow include downlink traffic and Second data flow includes uplink service.

In an aspect, described device determines whether channel quality is lower than threshold value, and when the channel quality is lower than When the threshold value, identified first dosis refracta, the second dosis refracta, third dosis refracta and the 4th dosis refracta are updated.

In an aspect, described device is regularly to first dosis refracta of first data flow and described second The definitive result of dosis refracta is assessed.In an aspect, described device is regularly to described the of second data flow The definitive result of three dosis refractas and the 4th dosis refracta is assessed.

In an aspect, to first dosis refracta of first data flow and second dosis refracta and described It includes that the following terms operates that the third dosis refracta of second data flow and the definitive result of the 4th dosis refracta, which carry out assessment, At least one of in: for the carrying serviced on first communication link and second communication link, to described the The difference of effective data rate and delay between one RAT and the 2nd RAT optimizes；When forbidding timer running When, it avoids using the first dosis refracta of identified first data flow and the second dosis refracta or identified second number According to the third dosis refracta and the 4th dosis refracta of stream；Or when the score for data flow distributes the quantity of variation within a certain period of time When beyond threshold value, avoids using the first dosis refracta of identified first data flow and the second dosis refracta and avoid applying The third dosis refracta and the 4th dosis refracta of identified second data flow.

In an aspect, described device to the UE send message, wherein the message to the UE configured with The third dosis refracta and warp of second data flow are sent using the first RAT via first communication link The 4th dosis refracta of second data flow is sent using the 2nd RAT by second communication link.

In an aspect, described device is based on being kept for first communication link and second communication link Token Bucket Policing or be based on scoring probability (fraction probability), come first data determined by realizing First dosis refracta of stream and the third dosis refracta and the 4th dosis refracta of the second dosis refracta and identified second data flow.

In an aspect, it determines first dosis refracta of first data flow or determines first data flow Second dosis refracta is based at least partially on the report from the UE.In an aspect, first data flow is determined First dosis refracta or determine that second dosis refracta of first data flow is Dynamic Execution whithin a period of time Or it is based at least partially on and receives the report from the UE and execute.In an aspect, when second communication When the channel quality of link is lower than threshold value or when minimum modulation and encoding scheme (MCS) cannot be selected for described second and lead to When believing link, the definitive result of first dosis refracta of first data flow is 1, and described the of first data flow The definitive result of two dosis refractas is 0.

In the one aspect of present disclosure, a kind of device for wireless communications include: will be via for determination One communication link using the first wireless access technology (RAT) come the unit of the first dosis refracta of the first data flow serviced to UE, For determination will via the second communication link using the 2nd RAT come the second score of first data flow serviced to the UE The unit of amount, and for servicing described first point of first data flow to the UE using first communication link The unit of quantity.

In an aspect, described the second of first dosis refracta of first data flow or first data flow At least one of dosis refracta is determined based on configuration or majorized function.

In an aspect, the majorized function is based at least one of the following: data flow to communication link Each of distribution, the first RAT and the 2nd RAT channel conditions of RAT, the first RAT and the 2nd RAT Each of the state of affairs of RAT, the resource of the first RAT and the 2nd RAT, first communication link and described Data rate on the channel loading of second communication link or first communication link and second communication link and prolong Difference between late.

In an aspect, described device further include: for via first communication link using the first RAT to The UE sends the control information for first data flow and receives the control for being directed to first data flow from the UE The unit of information processed, or for being sent to the UE for described via second communication link using the 2nd RAT The control information of first data flow and the list that the control information for first data flow is received from the UE Member.In an aspect, the control information includes at least one of the following: for configuring first communication link Disappear with the RRC information, RLC message and PDCP state of the fractional transmission on each communication link in second communication link Breath.

In an aspect, described device further include: for via first communication link using the first RAT from The UE receives the unit of the feedback information for first data flow, for via described in the second communication link use 2nd RAT receives the unit of the feedback information for first data flow from the UE, or for according to described the Two RAT receive the unit of the feedback information for first data flow.In an aspect, the feedback information includes at least One feedback message, at least one described feedback message include UE measurement result and the 2nd RAT measurement result.

In an aspect, first dosis refracta and second dosis refracta of first data flow are based on to system The optimization of effectiveness, the optimization to system utility can between carrying use ratio it is fair.

In an aspect, described device further include: to be made by the UE via first communication link for determination The unit of third dosis refracta with the first RAT come the second data flow sent, will be by the UE via described for determination The unit of 4th dosis refracta of second data flow that the second communication link is sent using the 2nd RAT, for via described First communication link receives the unit of the third dosis refracta of second data flow from the UE.In an aspect, institute State that the first data flow includes downlink traffic and second data flow includes uplink service.

In an aspect, described device further include: for determining whether channel quality is lower than the unit of threshold value, Yi Jiyong In when the channel quality be lower than the threshold value when, update determined by the first dosis refracta, the second dosis refracta, third dosis refracta and The unit of 4th dosis refracta.

In an aspect, described device further include: for regularly to first score of first data flow The unit that amount and the definitive result of second dosis refracta are assessed.

In an aspect, described device further include: for regularly to the third score of second data flow The unit that amount and the definitive result of the 4th dosis refracta are assessed.In an aspect, for regularly to described first First dosis refracta and second dosis refracta of data flow and the third dosis refracta and the institute of second data flow State the unit that the definitive result of the 4th dosis refracta is assessed be configured in the following terms operation at least one of: be directed to The carrying serviced on first communication link and second communication link, to the first RAT and the 2nd RAT Between effective data rate and the difference of delay optimize；When forbidding timer at runtime, avoid using identified The first dosis refracta and the second dosis refracta of first data flow or the third dosis refracta of identified second data flow and 4th dosis refracta；Or it when the quantity of the score distribution variation for data flow exceeds threshold value within a certain period of time, avoids answering With the first dosis refracta of identified first data flow and the second dosis refracta and avoid using identified described second The third dosis refracta and the 4th dosis refracta of data flow.

In an aspect, described device further include: for sending the unit of message to the UE, wherein the message The UE is configured to be sent the institute of second data flow using the first RAT via first communication link It states third dosis refracta and is sent described in second data flow via second communication link using the 2nd RAT 4th dosis refracta.

In an aspect, described device further include: for based on being kept for first communication link and described The Token Bucket Policing of second communication link is based on scoring probability, to realize first point of identified first data flow The unit of the third dosis refracta and the 4th dosis refracta of quantity and the second dosis refracta and identified second data flow.

In an aspect, for determining the unit of first dosis refracta of first data flow or for determining The unit for stating second dosis refracta of the first data flow is configured as being based at least partially on the report from the UE to hold Row determines.

In an aspect, for determining first dosis refracta of first data flow or determining first data The unit of second dosis refracta of stream is configured as dynamically executing whithin a period of time and determines or be based at least partially on It receives the report from the UE and executes determination.

In an aspect, when the channel quality of second communication link is lower than threshold value or when minimum MCS cannot When being selected for second communication link, the definitive result of first dosis refracta of first data flow is 1, and institute The definitive result for stating second dosis refracta of the first data flow is 0.

In the one aspect of present disclosure, a kind of device for wireless communications include: memory；And at least one A processor is coupled to the memory and is configured as: determination will via the first communication link using the first RAT come to First dosis refracta of the first data flow of UE service, determination will be taken using the 2nd RAT to the UE via the second communication link Second dosis refracta of first data flow of business, and described first is serviced to the UE using first communication link First dosis refracta of data flow.

In the one aspect of present disclosure, a kind of computer program product includes: computer-readable medium comprising Code for performing the following operation: the first data that determination will be serviced using the first RAT to UE via the first communication link First dosis refracta of stream, first data that determination will be serviced using the 2nd RAT to the UE via the second communication link Second dosis refracta of stream, and described the first of first data flow is serviced to the UE using first communication link Dosis refracta.

It is described in further detail in the disclosure referring to each example of present disclosure as shown in the accompanying drawings The various aspects and feature of appearance.Although present disclosure is described referring to each example, but it is to be understood that in the disclosure Appearance is not only restricted to these examples.It can touch instructing herein those skilled in the art will appreciate that the disclosure described herein Within the scope of content and present disclosure may be about its additional realization, modification and example with important practicability And it is other use field.

Detailed description of the invention

Fig. 1 is the various aspects according to present disclosure, shows the exemplary diagram of the network architecture.

Fig. 2 is the various aspects according to present disclosure, shows the exemplary diagram of access network.

Fig. 3 is the various aspects according to present disclosure, shows the exemplary diagram of the DL frame in LTE.

Fig. 4 is the various aspects according to present disclosure, shows the exemplary diagram of the UL frame in LTE.

Fig. 5 is the various aspects according to present disclosure, shows the wireless protocols for user plane and control plane The exemplary diagram of framework.

Fig. 6 is the various aspects according to present disclosure, shows evolved node B and user equipment in access network Exemplary diagram.

Fig. 7 A is the various aspects according to present disclosure, shows the exemplary nothing of the data path between UE and PDN The diagram of line communication system.

Fig. 7 B is the various aspects according to present disclosure, shows the exemplary nothing of the data path between UE and PDN The diagram of line communication system.

Fig. 8 is the various aspects according to present disclosure, shows the flow chart of a kind of method of wireless communication.

Fig. 9 is the various aspects according to present disclosure, shows the flow chart of a kind of method of wireless communication.

Figure 10 A and Figure 10 B are the various aspects according to present disclosure, show the process of a kind of method of wireless communication Figure.

Figure 11 is the various aspects according to present disclosure, shows disparate modules/unit/component in exemplary means Between data flow conceptual data flow figure.

Figure 12 is the various aspects according to present disclosure, shows and is shown using the hard-wired of device of processing system The diagram of example.

Specific embodiment

The detailed description illustrated with reference to the accompanying drawing is intended as the description to various configurations, without being intended to indicate that wherein Unique configuration of concepts described herein can be practiced.For the purpose provided to the thorough understanding of each conception of species, retouch in detail It states including concrete details.It will be apparent, however, to one skilled in the art that it is specific thin not have these These concepts are practiced in the case where section.In some instances, it is shown in block diagram form well known structure and component, to avoid mould Paste these concepts.

Several aspects of telecommunication system are presented now with reference to various device and method.These device and method will be under It is described in the detailed description in face, and passes through various frames, module, component, circuit, step, process, algorithm etc. in the accompanying drawings (be referred to as " element ") is shown.These elements can be used electronic hardware, computer software or any combination thereof and come It realizes.It is implemented as hardware or software as these elements, depending on specific application and the design being applied on total system Constraint.

For example, any combination of any part or element of element or element can be with including one or more " processing system " Lai Shixian of processor.The example of processor includes being configured as executing running through each described in present disclosure The microprocessor of kind function, digital signal processor (DSP), field programmable gate array (FPGA), may be programmed and patrol microcontroller Collect device (PLD), state machine, gate control logic device, discrete hardware circuit and other hardware appropriate.One in processing system Or multiple processors can execute software.Either be known as software, firmware, middleware, microcode, hardware description language or its Its term, software should be broadly interpreted as indicating instruction, instruction set, code, code segment, program code, program, sub- journey Sequence, software module, application, software application, software package, routine, subroutine, object, executable file, the thread of execution, process, Function etc..

Therefore, in one or more exemplary embodiments, described function can with hardware, software, firmware or Any combination thereof is realized.If realized with software, the function can be stored or encoded as on computer-readable medium One or more instructions or code.Computer-readable medium includes computer storage medium.Storage medium can be can be by counting Any usable medium of calculation machine access.Mode and not restrictive by way of example, such computer-readable medium may include Random access memory (RAM), read-only memory (ROM), electrically erasable ROM (EEPROM), compact disk ROM (CD- ROM) or other optical disc storages, disk storage or other magnetic storage apparatus or can be used for carry or store have instruction or The desired program code of data structure form and can be by any other medium of computer access.Combinations of the above is also answered Within the scope of being included in computer-readable medium.

Fig. 1 is the various aspects according to present disclosure, shows the diagram of LTE network framework 100.LTE network framework 100 are properly termed as evolved packet system (EPS) 100.EPS 100 may include one or more user equipmenies (UE) 102, evolution The Internet protocol of type UMTS Terrestrial Radio Access Network (E-UTRAN) 104, evolution block core (EPC) 110 and operator (IP) 122 are serviced.Those entity/interfaces can be not shown but for the sake of simplicity with other access of internet interlock in EPS 100. As indicated, EPS 100, which provides packet-switched services, as those skilled in the art will readily appreciate that, can still will pass through Each conception of species that present disclosure is presented, which expands to, provides the network of circuit switched service.

E-UTRAN 104 includes evolved node B (eNB) 106 and other eNB 108, and may include that multicast is coordinated Entity (MCE) 128.ENB 106 provides user and control plane protocol terminations towards UE 102.ENB 106 can via return Journey (for example, X2 interface) is connected to other eNB 108.The distribution of MCE 128 is used for evolution type multimedia broadcast multicast service (MBMS) the time/frequency radio resource of (eMBMS), and determine the radio configuration for eMBMS (for example, modulation and coding Scheme (MCS)).MCE 128 can be individual entity either a part of eNB 106.ENB 106 can also be known as base It stands, node B, access point, base transceiver station, wireless base station, transceiver, transceiver function unit, basic service set (BSS), extended service set (ESS) or some other term appropriate.ENB 106 is provided to UE 102 to EPC's 110 Access point.The example of UE 102 include cellular phone, smart phone, Session initiation Protocol (SIP) phone, laptop computer, Personal digital assistant (PDA), satellite radio device, global positioning system, multimedia equipment, video equipment, digital audio play Device (for example, MP3 player), camera, game console, the equipment of tablet device or any other like function.UE 102 can also be generally referred to by those skilled in the art as movement station, subscriber station, mobile unit, subscriber unit, radio-cell, long-range list It is member, mobile device, wireless device, wireless telecom equipment, remote equipment, mobile subscriber station, access terminal, mobile terminal, wireless Terminal, remote terminal, hand-held device, user agent, mobile client, client or some other term appropriate.

ENB 106 is connected to EPC 110.EPC 110 may include mobility management entity (MME) 112, home subscriber clothes Be engaged in device (HSS) 120, other MME 114, gateway 116, multicast broadcast multimedia service (MBMS) gateway 124, broadcast multi-broadcasting Service centre (BM-SC) 126 and packet data network (PDN) gateway 118.MME 112 is between processing UE 102 and EPC 110 Signaling control node.In general, MME 112 provides carrying and connection management.All User IP groupings pass through gateway 116 It transmits, wherein gateway 116 is connected to PDN Gateway 118 in itself.The offer UE IP address of PDN Gateway 118 is distributed and it Its function.PDN Gateway 118 and BM-SC 126 are connected to IP service 122.IP service 122 may include internet, Intranet, IP IP multimedia subsystem, IMS (IMS), PS stream service (PSS) and/or other IP service.BM-SC 126 can be provided for MBMS user The function of service provision and transmission.BM-SC 126 can serve as the inlet point for content supplier's MBMS transmission, can be used for It is authorized in PLMN and initiates MBMS carrying service, and can be used for dispatching and transmitting MBMS transmission.MBMS gateway 124 can be with For MBMS business to be distributed to the eNB (example for belonging to the region the multicast broadcast single frequency network for broadcasting special services (MBSFN) Such as, 106,108), and session management (beginning/stopping) being responsible for and be responsible for collecting the relevant charge information of eMBMS.

Fig. 2 is the various aspects according to present disclosure, shows the example of the access network 200 in LTE network framework Diagram.In this example, access network 200 is divided into multiple cellular zones (cell) 202.One or more lower-wattages Grade eNB 208 can have and the equitant cellular zone 210 of one or more cells in cell 202.Lower-wattage etc. Grade eNB 208 can be Femto cell (for example, family eNB (HeNB)), picocell, Microcell or long distance wireless head end (RRH).Macro eNB 204 is respectively assigned to corresponding cell 202, and is configured as all UE 206 into cell 202 It is provided to the access point of EPC 110.Although centralized controller is not present in the example of access network 200, substituting Configuration in centralized controller can be used.ENB 204 is responsible for all wireless relevant functions comprising radio bearer control System, admission control, mobility control, scheduling, safety and the connection to gateway 116.ENB can support one or more (for example, three) cell (it is also known as sector).Term " cell " can refer to the smallest coverage area of eNB and/or serve The eNB subsystem of particular coverage.In addition, using term " eNB ", " base station " and " cell " with can be interchanged herein.

Depending on the specific telecommunication standard disposed, accessing modulation and Multiple Access scheme used by network 200 can change. In LTE application, SC-FDMA is used using OFDM on DL and on UL, to support frequency division duplex (FDD) and time-division double Both works (TDD).As those skilled in the art will readily appreciate that by the following detailed description, presented herein is various general Thought is highly suitable for LTE application.But these concepts can be easily extended to using its of other modulation and multiple access technology Its telecommunication standard.For example, these concepts can extend to Evolution-Data Optimized (EV-DO) or Ultra-Mobile Broadband (UMB). EV-DO and UMB is by the sky of a part as CDMA2000 family of standards of third generation partner program 2 (3GPP2) publication Middle interface standard, and CDMA is used to provide broadband internet access for movement station.These concepts can be extended to: use The general land wireless access (UTRA) of other modifications (for example, TD-SCDMA) of wideband CDMA (W-CDMA) and CDMA；Using The global system for mobile communications (GSM) of TDMA；And evolved UTRA (E-UTRA), 802.11 (Wi- of IEEE using OFDMA Fi), IEEE 802.16 (WiMAX), IEEE 802.20 and flash OFDM.It is described in the document that 3GPP is organized UTRA, E-UTRA, UMTS, LTE and GSM.CDMA2000 and UMB are being described in the document that 3GPP2 is organized.It is used Actual wireless communication standard and multiple access technology will depend on specifically applying and being applied to the overall design constraints in system.

ENB 204 can have the mutiple antennas for supporting MIMO technology.Using for MIMO technology enables eNB 204 to make Spatial reuse, beam forming and transmitting diversity are supported with spatial domain.Spatial reuse can be used on a same frequency while send out Send different data flows.Data flow can be sent to single UE 206 to increase data rate, or be sent to multiple UE 206 to increase entire system capacity.This is by carrying out spatial pre-coding (that is, applies amplitude and phase to each data flow Scaling) and then by multiple transmitting antennas send each stream through spatial pre-coding on DL to realize.Reach UE The data flow of 206 spatial pre-coding has different spatial signatures, this enables each UE 206 to restore to go to UE 206 one or more data flows.On UL, each UE 206 sends the data flow through spatial pre-coding, this makes eNB 204 can identify the source of each data flow through spatial pre-coding.

When channel conditions are good, usually using spatial reuse.When channel conditions are not good enough, beam forming can be used Transmission energy is concentrated in one or more directions.This can be pre- by carrying out space to the data transmitted via mutiple antennas Coding is to realize.In order to realize good covering at cell edge, can come to flow beam forming using single in conjunction with transmitting diversity Transmission.

In the following detailed description, the mimo system referring to the support OFDM on DL is described to each of access network Aspect.OFDM is the spread spectrum modulated data onto OFDM symbol over the plurality of subcarriers.These subcarriers are with accurate Frequency interval is opened.The interval provides " orthogonality ", and " orthogonality " allows a receiver to restore from these subcarriers Data.In the time domain, protection interval (for example, cyclic prefix) can be added to each OFDM symbol, to overcome OFDM symbol Between interfere.The SC-FDMA with DFT extension ofdm signal form can be used in UL, to compensate height power ratio (PARR).

Fig. 3 is the various aspects according to present disclosure, shows the exemplary diagram 300 of the DL frame structure in LTE.It can Frame (10ms) to be divided into the subframe of 10 equal sizes.Each subframe may include two continuous time slots.It can make Indicate that two time slots, each time slot include a resource block with a resource grid.Resource grid is divided into multiple moneys Source unit.In LTE, for conventional cyclic prefix, a resource block includes in 12 continuous subcarriers in frequency domain and time domain 7 A continuous OFDM symbol corresponds to 84 resource units in total.For extended cyclic prefix, a resource block includes in frequency domain 6 continuous OFDM symbols in 12 continuous subcarriers and time domain correspond to 72 resource units in total.The resource unit In some (it is indicated as R 302,304) include DL reference signal (DL-RS).DL-RS includes the specific RS of cell (CRS) (it is also known as public RS sometimes) specific RS of 302 and UE (UE-RS) 304.Only at corresponding physical downlink shared channel (PDSCH) UE-RS 304 is sent on the resource block be mappeding to.Amount of bits entrained by each resource unit depends on modulation scheme. Therefore, the received resource block of UE is more and modulation scheme is higher, then the data rate of the UE is higher.

Fig. 4 is the various aspects according to present disclosure, shows the exemplary diagram 400 of the UL frame structure in LTE.It can The available resource block for being used for UL is divided into data segment and control section.Control section can be formed in two edges of system bandwidth Place and it can have configurable size.Resource block in control section can be distributed into UE, to transmit control information.Number It may include all resource blocks for not including in control section according to section.The UL frame structure results in the data including continuous subcarrier Section can permit all continuous subcarriers into single UE distribution data segment.

Resource block 410a, 410b in control section can be distributed, to UE to send control information to eNB.It can also be to UE distributes resource block 420a, 420b in data segment, to send data to eNB.The money that UE can be distributed in control section In source block, control information is sent in physics UL control channel (PUCCH).The resource block that UE can be distributed in data segment On, it is shared in physics UL and both only sends data in channel (PUSCH) or send data and control information.UL transmission can be with Across all two time slots of a subframe, and can be jumped across frequency.

The set of resource block can be used to execute initial system access, and at Physical Random Access Channel (PRACH) Realize that UL is synchronous in 430.PRACH 430 carries random sequence, and cannot carry any UL data/signaling.Each with Machine access lead code occupies bandwidth corresponding with six continuous resource blocks.Initial frequency is specified by network.That is, The transmission of random access lead code is limited to specific time and frequency resource.For PRACH, frequency agility is not present.? It carries PRACH in single subframe (1ms) or in the sequence of some continuous subframes to attempt, and UE can be in each frame (10ms) only carries out single PRACH trial.

Fig. 5 is the various aspects according to present disclosure, shows the wireless protocols for user in LTE and control plane The exemplary diagram 500 of framework.Radio protocol architecture for UE and eNB is shown as tool, and there are three layers: layer 1, layer 2 and layer 3.Layer 1 (L1 layers) are lowermost layers, and realize various physical layer signal processing functions.It is known as physical layer 506 for L1 layers herein.2 (L2 of layer Layer) 508 it is higher than physical layer 506, and it is responsible for link on physical layer 506, between UE and eNB.

In user plane, L2 layer 508 includes medium access control (MAC) sublayer 510, wireless spread-spectrum technology (RLC) Layer 512 and 514 sublayer of packet data convergence protocol (PDCP), these sublayers terminate at the eNB of network side.Although not showing Out, but UE can have several upper layers higher than L2 layer 508 comprising the network layer terminated at the PDN Gateway 118 of network side (for example, IP layers) and the application layer terminated at the other end (for example, distal end UE, server etc.) of connection.

PDCP sublayer 514 provides the multiplexing between different radio carrying and logic channel.PDCP sublayer 514 is also provided and is used for The header-compressed of upper layer data packet realizes safety by being encrypted to data grouping to reduce wireless transmission expense, And the switching between eNB is provided for UE and is supported.Rlc sublayer 512 provides the Segmentation and Reassembly of upper layer data packet, loses data The re-transmission of grouping and the rearrangement of data grouping, so as to compensate as hybrid automatic repeat-request (HARQ) and caused by disorderly Sequence receives.Media access control sublayer 510 provides the multiplexing between logic channel and transmission channel.Media access control sublayer 510 is also responsible for dividing between UE With the various radio resources (for example, resource block) in a cell.Media access control sublayer 510 is also responsible for HARQ operation.

In the control plane, for physical layer 506 and L2 layer 508, except there is no the header pressures for controlling plane Except contracting function, the radio protocol architecture for UE and eNB is essentially identical.It further includes wireless in layer 3 (L3 layers) for controlling plane Resources control (RRC) sublayer 516.RRC sublayer 516 is responsible for obtaining radio resource (for example, radio bearer), and be responsible in eNB and Low layer is configured using RRC signaling between UE.

Fig. 6 is the various aspects according to present disclosure, accesses the block diagram that eNB 610 and UE 650 are communicated in network. In DL, the upper-layer packet from core net is provided to controller/processor 675.Controller/processor 675 realizes L2 layers Function.In DL, controller/processor 675 is based on various priority metrics and provides header-compressed, encryption, grouping to UE 650 Multiplexing and radio resource allocation between segmentation and rearrangement, logic channel and transmission channel.Controller/processor 675 It is also responsible for HARQ operation, the re-transmission of lost packets and sends signaling to UE 650.

Send the various signal processing functions that (TX) processor 616 realizes L1 layers (that is, physical layer).These signal processing function It can include: the coding and intertexture that carry out to facilitate forward error correction (FEC) at UE 650, and be based on various modulation methods Case is (for example, binary phase shift keying (BPSK), orthogonal PSK (QPSK), M phase phase-shift keying (M-PSK), the orthogonal width of M rank Degree modulation (M-QAM)) it is mapped to signal constellation (in digital modulation).Then, by encoded and modulation symbol segmentation at parallel stream.Then, OFDM subcarrier is mapped each flow to, is answered it with reference signal (for example, pilot tone) in time domain and/or frequency domain With, and then be combined together to generate by each stream using inverse fast Fourier transform (IFFT) and carry time-domain OFDM symbol The physical channel of stream.The OFDM is flowed and carries out spatial pre-coding, to generate multiple spatial flows.Carry out the letter of channel estimator 674 Road estimation is determined for coding and modulation scheme and for realizing spatial manipulation.It can be from reference signal and/or by UE Channel estimation is derived in the 650 channel conditions feedbacks sent.Then, via individual transmitter 618TX to different antennas 620 provide each spatial flow.Each transmitter 618TX can be used corresponding spatial flow and be modulated to RF carrier wave, so as into Row transmission.

At UE 650, each receiver 654RX receives signal by its corresponding antenna 652.Each receiver 654RX restores the information of modulation on an rf carrier, and provides this information to reception (RX) processor 656.RX processor 656 is real Existing L1 layers of various signal processing functions.RX processor 656 can execute spatial manipulation to the information, to restore to go to UE 650 any spatial flow.If multiple spatial flows will go to UE 650, RX processor 656 can be combined them into individually OFDM symbol stream.Then, OFDM symbol stream is transformed from the time domain to frequency using Fast Fourier Transform (FFT) (FFT) by RX processor 656 Domain.Frequency-region signal includes the independent OFDM symbol stream of each subcarrier for ofdm signal.It is sent out by determining by eNB 610 The symbol and reference signal on each subcarrier are restored and demodulated to the most probable signal constellation point sent.These soft-decisions It can be based on the channel estimation being calculated by channel estimator 658.Then, these soft-decisions are decoded and are deinterleaved, To restore the data and control signal that eNB 610 is initially sent on the physical channel.Then, these data and control signal are mentioned Supply controller/processor 659.

Controller/processor 659 realizes L2 layers.Controller/the processor can be deposited with storage program code and data Reservoir 660 is associated.Memory 660 is properly termed as computer-readable medium.In UL, controller/processor 659 provides transmission Demultiplexing, packet recombining, decryption, header decompression, control signal processing between channel and logic channel, to restore to come from core The upper-layer packet of heart net.Then, upper-layer packet is provided to data sink 662, wherein data sink 662 indicates to be higher than L2 layers of all associations Discuss layer.Various control signals can also be provided to data sink 662 to carry out L3 processing.Controller/processor 659 be also responsible for using (ACK) and/or negative confirmation (NACK) agreement are confirmed to carry out error detection, to support HARQ operation.

In UL, data source 667 is used to provide upper-layer packet to controller/processor 659.The expression of data source 667 is higher than L2 layers of all protocol layers.Described function, controller/processor 659 are transmitted by the DL that eNB 610 is carried out similar to combining By offer header-compressed, encryption, packet segmentation and rearrangement, and the radio resource allocation based on eNB 610 is in logic It is multiplexed between channel and transmission channel, the L2 layer of Lai Shixian user plane and control plane.Controller/processor 659 is also It is responsible for HARQ operation, the re-transmission of lost packets and sends signaling to eNB 610.

TX processor 668 can be used to be pushed away from feedback transmitted by reference signal or eNB 610 as channel estimator 658 Derived channel is estimated to select coding appropriate and modulation scheme, and helps to realize spatial manipulation.It can be via individual hair It penetrates machine 654TX and the spatial flow generated by TX processor 668 is provided to different antennas 652.Each transmitter 654TX can make RF carrier wave is modulated with corresponding spatial flow, to be transmitted.

To pass UL in a manner of similar to that described in the receiver function being incorporated at UE 650 at eNB 610 It is input into capable processing.Each receiver 618RX receives signal by its corresponding antenna 620.Each receiver 618RX restores The information of modulation on an rf carrier, and provide this information to RX processor 670.RX processor 670 may be implemented L1 layers.

Controller/processor 675 realizes L2 layers.Controller/processor 675 can be deposited with storage program code and data Reservoir 676 is associated.Memory 676 is properly termed as computer-readable medium.In UL, controller/processor 675 provides transmission Demultiplexing, packet recombining, decryption, header decompression, control signal processing between channel and logic channel, to restore to come from UE 650 upper-layer packet.The upper-layer packet from controller/processor 675 can be provided to core net.Controller/processor 675 It is also responsible for carrying out error detection using ACK and/or NACK agreement, to support HARQ operation.

Fig. 7 A is according to one aspect of the present disclosure, to show between UE 715 and PDN 740 (for example, internet) Data path 745 and 750 exemplary wireless communication system 700-a diagram.In an aspect, 745 He of data path 750 are configured as realizing the polymerization to the data from WWAN and WLAN wireless access technology (RAT).Go out as shown in Figure 7A , wireless communication system 700-a may include UE 715 (also known as multi-mode UE 715), eNB 705-a, WLAN AP 705- B, evolution block core (EPC) 780, PDN 740 and peer-entities 755.EPC 780 may include mobility management entity (MME) 730, gateway (SGW) 732, PDN Gateway (PGW) 734.Home subscriber system (HSS) 735 can be logical with MME 734 The coupling of letter ground.UE 715 may include LTE wireless device 720 and WLAN wireless device 725.

ENB 705-a and WLAN AP 705-b can be it is setting altogether or in other ways with high-speed communication (example each other Such as, it is connected via optical fiber).In the configuration of Fig. 7 A, the relevant data of EPS carrying between UE 715 and WLAN AP 705-b EPC 780 can be routed to by eNB 705-a.In this way, it is possible to along in eNB 705-a, 780 EPC, PDN 740 And the same paths between peer-entities 755 forward all EPS to carry relevant data.

Go out as shown in Figure 7A, eNB 705 and WLAN AP 705-b are able to use one or more LTE component carriers Or the polymerization of one or more WLAN component carrier is provided to the access of PDN 740 to UE 715.Using this to PDN's 740 Access, UE 715 can be communicated with peer-entities 755.

MME 730 can be the control node of the signaling between processing UE 715 and EPC 780.In general, MME 730 can be with Carrying and connection management are provided.MME 730 can therefore be responsible for idle mode UE tracking and paging, bearing activation and deactivation, It is selected with the SGW for UE 715.MME 730 can be communicated on S1-MME interface with eNB 705-a.MME 730 can be with volume Other places certification UE 715 and Non-Access Stratum (NAS) signaling of realization and UE 715.

HSS 735 can also store subscriber data among other functionalities, management roaming limits, management subscriber can access Access point name (APN), and subscriber and MME 730 are associated.HSS 735 can be by 3GPP organizational standard It is communicated on S6a interface defined in evolved packet system (EPS) framework with MME 730.

Go out as shown in Figure 7A, SGW 732 can be connected to MME 730 on S11 signaling interface and can be in S5 PDN Gateway 734 is connected on signaling interface.By MME 730, all User IPs grouping transmitted on LTE can pass through eNB 705-a sends SGW 732 to.SGW 732 may reside in user plane and serve as switching and different access skills between eNB The mobility anchor switched between art.PDN Gateway 734 can be supplied to the distribution of UE IP address and other functions.

PDN Gateway 734 can be provided to one or more external packet data networks (such as PDN on SGi signaling interface 740) connection.PDN 740 may include internet, Intranet, IP multimedia subsystem (IMS), packet switch (PS) stream Service (PSS) and/or other types of PDN.

In this example, the user plane data between UE 715 and EPC 780 can be one or more by same group EPS carrying, no matter business is flowed through on the data path 745 of LTE link or on the data path 750 of WLAN link.With Group one or more EPS carries relevant signaling or control plane data can be by means of eNB 705-a come UE's 715 It is transmitted between LTE wireless device 720 and the MME 730 of EPC 780.

Go out as shown in Figure 7A, UE is connected to eNB 705-a and WLAN AP 705-b, eNB 705-a and WLAN simultaneously AP 705-b provides wireless access links to transmit the signaling and data service of user.Therefore, in terms of Fig. 7 A, Ke Yiyou LTE or WLAN Radio Link come to user data or signaling bear service.

Fig. 7 B is according to one aspect of the present disclosure, to show the data path 745 between UE 715 and PDN 740 With the diagram of 752 exemplary wireless communication system 700-b.Data path 745 and 752 be for polymerizeing from WLAN and Shown in the context of the wireless communication system 700-b of the data of WWAN wireless access technology, wireless communication system 700-b base This is similar to the wireless communication system 700-a of Fig. 7 A.As shown in the configuration of Fig. 7 B, eNB 705-a in Fig. 7 B and WLAN AP 705-b can not be it is setting altogether or can not be in other ways with communicate with one another.

In an aspect, eNB 705-a can be determined the data service of carrying that is servicing on each communication link The amount of (also known as data flow).In an aspect, the amount of the data flow serviced on each communication link can be this The dosis refracta of data flow and system optimization can be based on.For example, can determine will be in the number of WLAN link 751 by eNB 705-a According on path 752 to 715 server data stream of UE 75% and on the data path of WWAN link 746 745 to UE 715 take The 25% of the data flow of being engaged in.In an aspect, WWAN link 746 can be LTE link and WLAN link 751 can be Wi-Fi link.

In an aspect, the carrying of UE 715 may include carrying and using for carrying the DL of data flow in dl direction In the UL carrying for carrying data flow in the ul direction.In an aspect, eNB 705-a can determine that UE 715 will be each logical Believe the amount for the data flow that chain road is sent and can send and the one or more configured is carried to the UL for UE 715 Message.For example, the one or more message can configure UL carrying by indicating the following contents: UE will use WLAN Link 751 sends the 30% of data flow in the ul direction and sends the 70% of the data flow using WWAN link 746.At one In aspect, RRC agreement can be used to send this message to UE 715.In an aspect, if UE 715 is configured as UL transmission is sent via an access link (for example, WWAN link 746 or WLAN link 751), then eNB 705-a can not be sent out It send and the one or more message configured is carried to the UL of UE 715.

In an aspect, the one or more message configured to the UL of UE 715 carrying also can indicate that wanting The definitive result of the amount of the data flow serviced on each communication link to UE 715 (for example, in dl direction).For example, if ENB 705-a determination will service all on a communication link (for example, in WWAN link 746 on data path 745) DL bearer service, then UE 715 can be to avoid other communication links (for example, WLAN link 751) be monitored, to realize UE 715 Power save.

In an aspect, each radio bearer of UE 715 can be configured as data flow in DL transmission from eNB 705-a is carried to UE 715 and data flow is carried to eNB 705-a from UE 715 in UL transmission.In an aspect, By in DL is transmitted to the dosis refracta of the data flow serviced of UE 715 can with will be in UL transmission from the received data of UE 715 The dosis refracta of stream is identical.In another aspect, by can be with to the dosis refracta of the data flow serviced of UE 715 in DL is transmitted It will be different from the dosis refracta of the received data flow of UE 715 in UL is transmitted.

It may include being directed to by carrying entrained DL data flow when the operation in RLC affirmation mode (AM) of UE 715 The feedback message of UL data flow entrained by the carrying, and may include for the carrying institute by carrying entrained UL data flow The feedback and/or control message of the DL data flow of carrying.In an aspect, this feedback and/or control message can be used WWAN link 746 is transferred without using WLAN link 751, or transfers without use using WLAN link 751 WWAN link 746.For example, eNB 705-a, which can be configured as, sends number to UE on WWAN link 746 and WLAN link 751 According to the dosis refracta of stream, and the feedback for sending carrying and/or control message are can be configured as using WWAN link 746 and nothing WLAN link 751 need to be used.For another example, when the transmission feedback on WLAN link 751 and/or control message, carrying Feedback and/or control message from WLAN AP 705-b can be sent to eNB 705-a when it sends from UE 715, and And WLAN AP 705-b is sent to from eNB 705-a when it sends from eNB 705-a.

In an aspect, eNB 705-a can be based on the one or more statistics collected on WWAN and WLAN chain road Data, come determine by the data path 745 of WWAN link 746 to the dosis refracta of the data flow serviced of UE 715 and will be To the dosis refracta of the data flow serviced of UE 715 on the data path 750 of WLAN link 751.For example, being received for WWAN link 746 The statistical data of collection may include: the buffer area DL for CQI and MCS, every carrying by the eNB 705-a each UE serviced Size and UL Buffer Status Report from each UE, total radio resource service condition are (for example, the frequency of WWAN resource And/or time component) and every user radio resource service condition, and/or WWAN hardware and backhaul load.For example, being The statistical data that WLAN link 751 is collected may include: the MCS and received signal strength indicator (RSSI) of every UE；It sends and connects The business of receipts, failure and discarding grouping and retry trial；The channel loading of WLAN AP 705-b；Total radio resource The hardware of the radio resource service condition, and/or WLAN of service condition (for example, time component of WLAN resource) and every user and Backhaul load.

In an aspect, eNB 705-a can determine by each period in one or more periods To the dosis refracta of the data flow serviced of UE 715 on WWAN link 746 and WLAN link 751.For example, one or more periods In each period can be approximate one second or other reasonable time sections.For example, one or more periods can be phase With duration or with the different duration.In another aspect, eNB 705-a can based on situation or event come Determine by WWAN link 746 and WLAN link 751 to the dosis refracta of the data flow serviced of UE 715, to allow eNB 705-a rapidly reacts rather than waits a period of time to the channel conditions of difference, during this period of time will to dosis refracta into Row updates.For example, when the RSSI of WLAN link 751 be less than threshold value when or if WLAN AP 705-b cannot be in time interval Period selects minimum MCS, then can determine will be completely on WWAN link 746 to 715 server data stream of UE by eNB 705-a. In this example, eNB 705-a can determine by WLAN link 751 to the dosis refracta of the data flow serviced of UE 715 be 0.

In an aspect, can be determined based on system optimization will be in WWAN link 746 and WLAN link by eNB 705-a To the dosis refracta of the data flow serviced of UE 715 on 751.For example, system optimization, which can be configured as, to be made for wireless communication system The overall system maximization of utility of available link (for example, WWAN link 746 and WLAN link 751) in 700-a.A side In face, eNB 705-a can be iteratively performed this system optimization.ENB 705-a can distribution will be in 746 He of WWAN link Use ratio fair (PF) measurement realizes fairness when on WLAN link 751 to the dosis refracta of the data flow serviced of UE 715. In an aspect, eNB 705-a can make the overall system utility function F (S) as defined in formula (1) most by determination The distribution changed greatly increases overall system effectiveness:

F (S)=Σ_kAlpha_k (S_k) * beta_k* Δ (X_k)/X_k (formula 1)

Wherein, S is the vector of S_k, and X_k is the filtering for up to the present carrying the total throughout (for example, bits per second) of k Value and Δ X_k are the expection handling capacities (for example, bits per second) for carrying k within the subsequent period.For example, S_k is 0 With the numerical value between 1, the dosis refracta of the data flow for the carrying k that will be serviced on WWAN link 746 is indicated, when using S_k, Alpha_k (S_k) is the function of the difference between the effective data rate comprising each chain road, and beta_k includes each Difference between the delay of chain road.Item alpha_k (S_k) and beta_k is used for data rate and delay to each chain road Between difference optimize so that at upper layer grouping rearrangement influence minimize.It should be noted that S instruction By the distribution of each carrying serviced on WWAN link 746 or WLAN link 751, (for example, will be in 746 He of WWAN link The dosis refracta of the data flow serviced on WLAN link 751, so that S_k=0 corresponds to services all carrying k and S_ on WLAN K=1 corresponds to services all carrying k) on WWAN.

In another aspect, eNB 705-a can make the overall system effectiveness as defined in formula (2) by determination Function F (S) maximumlly distributes to increase overall system effectiveness:

F (S)=Σ_kAlpha_k (S_k) * beta_k*log (Y_k) (formula 2)

Wherein, Y_k is the desired data rate for carrying k.In an aspect, eNB 705-a can be based on each link On data rate estimate Y_k (for example, WWAN link 746 and WLAN link 751).For example, if Y ' _ k is defined as table Show LTE data rate and Y " _ k is defined as expression WLAN data rate, then eNB 705-a can be based on formula (3) come really Determine Y_k:

Y_k=S_k*Y ' _ k+ (1-S_k) * Y " _ k. (formula 3)

In above-mentioned formula 1 to 3, carrying index k is applied to all carryings in system, including only and configuring The carrying of one chain road service.Therefore, the influence to all carryings can be contained in system optimization.In addition, each holding It is associated with a direction link (for example, UL or DL) to carry index k, and therefore UL and DL carrying can be in system optimization It is considered.For example, overall system utility function F (S) can be calculated for both uplink carrying and downlink carrying.

In an aspect, eNB 705-a can be by the inclusion of being assigned to each link (for example, 746 He of WWAN link WLAN link 751) on the variation of priority of each carrying system utility function F (S) optimized.For example, WWAN Link 746 and WLAN link 751 can continue on through from packet scheduling to carrying and provide QoS.For example, if scheduler is in difference Higher priority is distributed between the carrying of QoS grade, then function F (S) can be modified to comprising the change in this priority Change.

In an aspect, eNB 705-a can be by the inclusion of each link (for example, WWAN link 746 and WLAN link 751) variation of the data rate on optimizes system utility function F (S), so that can keep on each link Similar delay and handling capacity.Therefore, the delay distortion of the grouping serviced on each link can be made to minimize, and can be with Reduce or avoid the grouping at upper layer rearrangement influence.

In an aspect, for making the maximized search space function F (S) that there is the dimension for being defined as carrying sum Degree.In in this regard, eNB 705-a can based on one or more situation come exclude carrying sum in it is some, to reduce Dimension.For example, these situations may include: that (a) carrying divides triggered situation or event (for example, an if access chain Road (for example, WWAN link 746) is poor (for example, lower than threshold value), and another link (for example, WLAN link 751) be can Receiving when, switching carrier), (b) carrying be configured with only WWAN link 746 or only WLAN link 751, (c) carrying Timer is forbidden to be currently running, and/or (d) under any circumstance, (this does not include shape for the segmentation variation more than several carryings Switching in condition (a)).

For example, Ω can be defined to indicate that the search space of point S by eNB 705-a, to be commented based on situation (a) to (d) Estimate F (S), and Sc can be defined as to situation (a) to (d) and the point that finds.If Ω is sky, eNB 705-a can To select the point as the optimum point of F (S).Otherwise, if Ω be not it is empty, eNB 705-a can be looked for optimizing application process To F (S) optimum point so that overall system maximization of utility.

For example, eNB 705-a can carry out optimizing application process by defining point S1 (wherein, S1=Sc).Then, eNB 705-a can determine the maximum quantity for wherein whether being greater than permitted assessment to the quantity of F (S) point assessed (for example, being required due to calculating).If being wherein greater than to the quantity of F (S) point assessed and assessing permitted maximum Quantity, then eNB 705-a stops optimization process.Otherwise, eNB 705-a can be based at least partially on from WWAN link 746 Divide the amount of the contemplated system effectiveness of carrying and acquisition between WLAN link 751 to be ranked up to each carrying.For example, K0 can be defined as wherein contemplating the carrying of optimal system utility gain by eNB.In an aspect, for system utility The sequence of gain can be based on following formula: (for current Sc WWAN link 746 and WLAN link 751 it Between effective data rate difference (delta)) * (portfolio at next interval)/(received handling capacity).Then, eNB Point S2 can be defined as the identified point when all carrying k0 are serviced on the chain road for wherein contemplate gain by 705-a. Then, eNB 705-a can determine the optimal value (referred to as α ') of α, wherein 0≤α≤1, and wherein G (α)=F (α * S1+ (1- α) * S2) it is maximized.If G (α ') > F (S1)+Delta1, eNB 705-a can be with defining point S1, so that S1=S2.With Afterwards, eNB 705-a can return to whether determination has wherein been greater than permitted assessment to the quantity of F (S) point assessed Maximum quantity the step of, and continue to execute optimization process as discussed previously.

If F (S1)/F (Sc) > Delta2, eNB 705-a can be Sn selected element S1.Otherwise, eNB 705-a can be with Selected element Sc and can be with defining point Snew, so that Snew=Sc.If there is Snew and Sc be it is different carrying (that is, Snew_k is not equal to Sc_k), then eNB 705-a can by these change applications in and/or pass to UE 715.

In an aspect, it can be used by eNB 705-a as eNB 705-a for dosis refracta determined by each carrying Token Bucket Policing is realized.In an aspect, can determine will be via the first RAT (for example, WWAN link by eNB 705-a 746) to the percentage (for example, x%) of 715 server data stream of UE and will via the 2nd RAT (for example, WLAN link 751) to The remaining percentage (for example, 100%-x%) for the data flow that UE 715 is serviced.In in this regard, for the number of each arrival According to unit (for example, bit or byte), eNB 705-a can collect the x/100 data cell in token bucket and be used for the first RAT, And 1-x/100 data cell is collected for the 2nd RAT.When the grouping that size is s bit is scheduled on RAT, from corresponding Token bucket removes the amount.Packet scheduling on each RAT follows the MAC algorithm of their own every time, must in addition to token bucket rank It must always nonnegative value.

Fig. 8 is the various aspects according to present disclosure, shows the flow chart 800 of a kind of method of wireless communication.It should Method can be executed by the eNB of eNB 705-a in such as Fig. 7 A and Fig. 7 B etc.It should be appreciated that being used in the flow chart of Fig. 8 The step of dotted line indicates indicates optional step.

In step 802, eNB determination will via the first communication link using the first RAT come to UE (for example, Fig. 7 A and Fig. 7 B In UE 715) service data flow the first dosis refracta.For example, the data flow can be including that will be transmitted in DL transmission To the data service of one or more data groupings of UE, and the first RAT can be WWAN, such as LTE.

In step 804, eNB determination will be via the of the data flow that the second communication link is serviced using the 2nd RAT to UE Two dosis refractas.For example, the 2nd RAT can be WLAN, such as WiFi^TM.In an aspect, eNB is based on configuration or majorized function (majorized function shown in such as formula 1 and formula 2) determines the first dosis refracta of data flow or the second score of data flow Amount.In an aspect, eNB is based at least partially on the report from UE to determine the first dosis refracta or data flow of data flow The second dosis refracta.In an aspect, eNB dynamically or is based at least partially on and receives from UE whithin a period of time Report to determine the first dosis refracta of data flow or the second dosis refracta of data flow.In an aspect, when the second communication chain When the channel quality on road is lower than threshold value or when minimum modulation and encoding scheme (MCS) cannot be selected for the second communication link When, the definitive result of the first dosis refracta of data flow is 1, and the definitive result of the second dosis refracta of data flow is 0.

In step 806, eNB based on the Token Bucket Policing for being kept for the first communication link and the second communication link or Based on scoring probability, to realize the first dosis refracta and the second dosis refracta of the identified data flow.

In step 808, eNB uses the 2nd RAT via the first communication link using the first RAT or via the second communication link The control information for being directed to data flow is received from UE.

In step 810, eNB is using the first communication link come to the first dosis refracta of UE server data stream.

In step 812, eNB uses the 2nd RAT via the first communication link using the first RAT or via the second communication link The feedback information for data flow is received from WLAN AP (for example, WLAN AP 705-b) and/or from UE.

In step 814, eNB determines whether channel quality is lower than threshold value.If channel quality is lower than threshold value, in step 816, eNB update identified first dosis refracta and/or the second dosis refracta.Otherwise, in step 818, eNB is regularly to data flow The first dosis refracta and the definitive result of the second dosis refracta assessed.In an aspect, to the first dosis refracta of data flow Assessment with the definitive result of the second dosis refracta is to be performed in the following manner: when forbidding timer to avoid at runtime Using the first dosis refracta and the second dosis refracta of identified data flow, and/or when the score distribution variation for data flow When quantity exceeds threshold value within a certain period of time, the first dosis refracta and the second dosis refracta using identified data flow are avoided.

Fig. 9 is the various aspects according to present disclosure, shows the flow chart 900 of a kind of method of wireless communication.It should Method can be executed by the eNB of eNB 705-a in such as Fig. 7 A and Fig. 7 B etc.It should be appreciated that being used in the flow chart of Fig. 9 The step of dotted line indicates indicates optional step.

In step 902, eNB determination will be made by UE (for example, UE 715 in Fig. 7 A and Fig. 7 B) via the first communication link First dosis refracta of the data flow sent with the first RAT.For example, the first data flow can be including that will be passed in UL transmission The data of one or more data groupings of eNB are given, and the first RAT can be WWAN, such as LTE.

In step 904, eNB determination will be by the of the UE data flow sent via the second communication link using the 2nd RAT Two dosis refractas.For example, the 2nd RAT can be WLAN, such as WiFi^TM.In an aspect, eNB is based on configuration or majorized function (majorized function shown in such as formula 1 and formula 2) determines the first dosis refracta of data flow or the second score of data flow Amount.In an aspect, eNB is based at least partially on the report from UE to determine the first dosis refracta or data flow of data flow The second dosis refracta.In an aspect, eNB whithin a period of time or is based at least partially on and receives the report from UE To dynamically determine the first dosis refracta of data flow or the second dosis refracta of data flow.In an aspect, when the second communication chain When the channel quality on road is lower than threshold value or when minimum MCS cannot be selected for the second communication link, the first of data flow The definitive result of dosis refracta is 1, and the definitive result of the second dosis refracta of data flow is 0.

In step 906, eNB sends message to UE, with sent via the first communication link the first dosis refracta of data flow with And the second dosis refracta of data flow is sent via the second communication link.

In step 908, eNB based on the Token Bucket Policing for being kept for the first communication link and the second communication link or Based on scoring probability, to realize the first dosis refracta and the second dosis refracta of identified data flow.

In step 910, eNB receives the first dosis refracta of data flow via the first communication link from UE.

In step 911, eNB uses the 2nd RAT via the first communication link using the first RAT or via the second communication link To send the control information for being directed to data flow to UE.

In step 912, eNB determines whether channel quality is lower than threshold value.If channel quality is lower than threshold value, in step 914, eNB update identified first dosis refracta and/or the second dosis refracta.Otherwise, in step 916, eNB is regularly to data flow The first dosis refracta and the definitive result of the second dosis refracta assessed.In an aspect, to the first dosis refracta of data flow Assessment with the definitive result of the second dosis refracta is to be performed in the following manner: when forbidding timer to avoid at runtime Using the first dosis refracta and the second dosis refracta of identified data flow, and/or when the score distribution variation for data flow When quantity exceeds threshold value within a certain period of time, the first dosis refracta and the second dosis refracta using identified data flow are avoided.

Figure 10 is the various aspects according to present disclosure, shows the flow chart 1000 of a kind of method of wireless communication. This method can be executed by the eNB of such as eNB 705-a etc.In step 1002, Ω is defined to indicate that searching for point S by eNB Rope space, with situation based on one or more come make overall system utility function F (S) maximize, and by point Sc be defined as by In the point that one or more situations are found.For example, the one or more situation may include situation (a) discussed above extremely (d)。

In step 1004, eNB determines search space Ω for sky.If search space Ω is sky, in step 1006, eNB Optimum point of the selected element Sc as overall system utility function F (S).Otherwise, if search space Ω is not sky, in step 1008, eNB carry out optimizing application process by defining point S1 (wherein, S1=Sc).

In step 1010, eNB is determined wherein to be allowed whether the quantity of F (S) point assessed is greater than assessment Maximum quantity (for example, due to calculate require).If being wherein greater than assessment institute to the quantity of F (S) point assessed The maximum quantity of permission, then in step 1012, eNB stops optimization process.Otherwise, in step 1014, eNB is based at least partially on The amount of the contemplated system effectiveness obtained from the segmentation carrying between WWAN link 746 and WLAN link 751 is come to each carrying It is ranked up.For example, k0 can be defined as wherein contemplating the carrying of optimal system utility gain by eNB.In one aspect In, the sequence for system utility gain can be based on following formula: (in WWAN link 746 for current Sc Effective data rate difference between WLAN link 751) * (portfolio at next interval)/(received handling capacity).

In step 1016, point S2 is defined as when servicing all carrying k0 on the chain road for wherein contemplating gain by eNB Identified point.

In step 1018, eNB determines the optimal value (referred to as α ') of α, wherein 0≤α≤1, and wherein G (α)=F (α * S1+ (1- α) * S2) it is maximized.

In step 1020, eNB determines whether G (α ') > F (S1)+Delta1 is true.If G (α ') > F (S1)+Delta1, Then in step 1022, eNB defining point S1, so that S1=S2.Then, eNB return step 1010, the step 1010 determine wherein Whether the permitted maximum quantity of assessment is greater than to the quantity of F (S) point assessed.Otherwise, it shows in fig. 1 ob Step 1024, eNB determines whether F (S1)/F (Sc) > Delta2.If F (S1)/F (Sc) > Delta2, in step 1026, ENB is Sn defining point S1.Otherwise, in step 1028, eNB defining point Snew, so that Snew=Sc.In step 1030, when depositing When Snew and Sc are different carrying (that is, Snew_k are not equal to Sc_k), eNB applies and/or transmits variation to UE 715.

Figure 11 is the various aspects according to present disclosure, show disparate modules/unit in exemplary means 1102/ The conceptual data flow figure 1100 of data flow between component.The device can be eNB.The device includes module 1104, module 1104 receive WWAN UL transmission (for example, receiving the second data flow from the UE of such as UE 1150 etc via the first communication link Third dosis refracta 1120).Module 1104 can also use the first RAT (for example, such as LTE etc via the first communication link WWAN) or via the second communication link using the 2nd RAT (for example, such as WiFi^TMEtc WLAN) from WLAN AP 1152 (for example, WLAN AP 705-b) and/or the feedback information for being directed to the first data flow is received from UE.The device further include: module 1106,1106 determination of module will via the first communication link using the first RAT come first point of the first data flow serviced to UE Quantity 1124, determination to be serviced using the 2nd RAT to UE via the second communication link (for example, WLAN link 1126) first Second dosis refracta 1128 of data flow, the second data that determination will be sent via the first communication link using the first RAT by UE The third dosis refracta 1120 of stream, the second data that determination will be sent via the second communication link 1126 using the 2nd RAT by UE 4th dosis refracta 1122 of stream, and determine whether channel quality is lower than threshold value；Module 1108, module 1108 are based on being kept use In the first communication link and the second communication link Token Bucket Policing or be based on scoring probability, come the first number determined by realizing According to the first dosis refracta and the second dosis refracta of stream；Module 1110, module 1110 is updated when channel quality is lower than threshold value to be determined Third dosis refracta and the 4th dosis refracta；Module 1112, module 1112 is regularly to the first dosis refracta of the first data flow and The definitive result of the third dosis refracta and the 4th dosis refracta of the definitive result of two dosis refractas and/or the second data flow is assessed； Module 1114, module 1114 is using the first communication link come to the first dosis refracta of UE first class services data flow；Module 1116, mould Block 1116 sends control information to UE using the first RAT via the first communication link and receives control information, Huo Zhejing from UE Control information is sent to UE using the 2nd RAT from the second communication link and receives control information from UE；And module 1118, mould Block 1118 sends WWAN DL transmission to UE.In an aspect, module 1118 sends message to UE, via the first communication chain Road is sent the third dosis refracta of the second data flow using the first RAT and is sent out via the second communication link using the 2nd RAT Send the 4th dosis refracta of the second data flow.

The apparatus may include additional module, in the flow chart that executes Fig. 8 above-mentioned, Fig. 9, Figure 10 A and Figure 10 B Each step in algorithm steps.Therefore, each step in the flow chart of Fig. 8 above-mentioned, Fig. 9, Figure 10 A and Figure 10 B can be with It is executed by module and the apparatus may include one or more of these modules.Module, which can be, specially to be configured as holding The stated one or more hardware components of process/algorithm of row, by being configured as executing stated process/algorithm processing Device come realize, be stored in computer-readable medium to be realized by processor, or combinations thereof.

Figure 12 is the various aspects according to present disclosure, show using processing system 1214 device 1102' it is hard The exemplary diagram 1200 that part is realized.Bus architecture can be used to realize in processing system 1214, and bus architecture is by bus 1224 To be indicated generally at.Depending on the concrete application and overall design constraints of processing system 1214, bus 1224 may include arbitrary number The interconnection buses and bridges of amount.Bus 1224 will include that (it uses processor for one or more processors and/or hardware module 1204, module 1104,1106,1108,1110,1112,1114,1116 and 1118 indicates) and computer-readable medium/storage Device 1206) various circuit connections together.Bus 1224 can also connect such as timing source, peripheral equipment, voltage regulator With the various other circuits of electric power management circuit etc, these circuits are well known in the present art, and therefore will be no longer into one Step is described.

Processing system 1214 may be coupled to transceiver 1210.Transceiver 1210 is coupled to one or more antennas 1220. Transceiver 1210 provides a kind of means for communicating by transmission medium with various other devices.Transceiver 1210 is from one Or mutiple antennas 1220 receives signal, information is extracted from received signal, and extracted information is supplied to processing System 1214 (specifically, receiving module 1104).In addition, transceiver 1210 is from processing system 1214 (specifically, sending mould Block 1118) information is received, and based on received information, generate the signal to apply to one or more antennas 1220.Place Reason system 1214 includes the processor 1204 for being coupled to computer-readable medium/memory 1206.Processor 1204 is responsible for general Processing, this includes executing the software stored on computer-readable medium/memory 1206.When the software is held by processor 1204 When row, so that processing system 1214 is executed above with respect to various functions described in any specific device.Computer-readable medium/ Memory 1206 can be also used for the data that storage is operated by processor 1204 when executing software.The processing system further includes mould At least one of block 1104,1106,1108,1110,1112,1114,1116 and 1118.These modules can be in processor It run in 1204, the software module that be resident/is stored in computer-readable medium/memory 1206, be coupled to processor 1204 One or more hardware modules or its certain combination.Processing system 1214 can be the component of eNB 610 and can wrap Include at least one of memory 670 and/or TX processor 616, RX processor 670 and controller/processor 675.

In one configuration, device for wireless communications 1102/1102' includes: to communicate via first for determination Link is using the first RAT come the unit of the first dosis refracta of the first data flow serviced to UE；It is logical via second for determination Believe link using the 2nd RAT come the unit of the second dosis refracta of first data flow serviced to UE；For using first to lead to Believe the first dosis refracta from link to UE first class services data flow unit；For using the first RAT via the first communication link Or it receives via the second communication link using the 2nd RAT from WLAN AP (for example, WLAN AP 705-b) and/or from UE for the The unit of the feedback information of one data flow；For via the first communication link using the first RAT come to UE send control information and Control information is sent without using the to UE using the 2nd RAT without using the 2nd RAT, or via the second communication link The unit of one RAT；For determination will by UE via the first communication link using the first RAT come the third of the second data flow sent The unit of dosis refracta；It will be by the of UE the second data flow sent via the second communication link using the 2nd RAT for determination The unit of four dosis refractas；For the unit of the third dosis refracta of the second data flow to be received from UE via the first communication link；For Determine whether channel quality is lower than the unit of threshold value；For updating identified third score when channel quality is lower than threshold value The unit of amount and the 4th dosis refracta；For regularly being tied to the first dosis refracta of the first data flow and determining for the second dosis refracta The unit that the definitive result of the third dosis refracta and the 4th dosis refracta of fruit, and/or the second data flow is assessed；For being sent out to UE Message is sent, to send the third dosis refracta of the second data flow using the first RAT via the first communication link and via second Communication link sends the unit of the 4th dosis refracta of the second data flow using the 2nd RAT；And for being based on being kept for The Token Bucket Policing of first communication link and the second communication link is based on scoring probability, come the first data determined by realizing The list of the third dosis refracta and the 4th dosis refracta of the first dosis refracta and the second dosis refracta and identified second data flow of stream Member.Foregoing units can be one or more of aforementioned modules of device 1102 and/or be configured as executing foregoing units institute The processing system 1214 of the device 1102' for the function of enumerating.As described above, processing system 1214 may include TX processor 616, RX processor 670 and controller/processor 675.Therefore, in one configuration, before foregoing units can be configured as execution State the TX processor 616, RX processor 670 and controller/processor 675 of function cited by unit.

It is to be understood that the specific order of step or level are to illustrative methods in disclosed process/flow chart Explanation.It is to be understood that being based on design preference, the specific order or level of step in process/flow chart can be rearranged.This Outside, some steps can be combined or omitted with some steps.Appended claim to a method is presented respectively with example sequence The element of kind step, and this is not meant to be limited to presented specific order or level.

Description more than offer is so that anyone skilled in the art can practice aspects described herein.For For those skilled in the art, the various modifications in terms of these will be apparent, and can will be as defined herein General principles are applied to other aspects.Therefore, claim is not intended to be limited to aspect shown herein, and is to fit to The full breadth consistent with claim literal language, wherein in the singular quote element be not intended to indicate " one and Only one " (unless particularly so statement), but indicate " one or more ".Meant herein using " exemplary " word " serving as example, example or explanation ".Any aspect described herein for " exemplary " shall not necessarily be understood as being more excellent than other aspects Choosing or tool advantage.Unless otherwise particularly state, otherwise term "some" refer to it is one or more.Such as " A, B or C At least one of ", the combination of " at least one of A, B and C " and " A, B, C or any combination thereof " etc include A, B And/or any combination of C, and may include multiple A, multiple B or multiple C.Specifically, such as " in A, B or C extremely Few one ", the combination of " at least one of A, B and C " and " A, B, C or any combination thereof " etc, can be only A, only Only B, only C, A and B, A and C, B and C or A and B and C, the such combination of any of them may include one in A, B or C at Member or multiple members.All structural and functional equivalent item of the element of the various aspects described in the present disclosure is right Well known for those of ordinary skill in the art or i.e. will be well known, by reference be expressly incorporated herein in and It is intended to be covered by claim.In addition, it is intended to offer to the public without any disclosure herein, it is no matter such open Whether content is explicitly recited in claims.Any claim elements are not considered as functional unit, unless making The element is clearly set forth with phrase " unit being used for ... ".

Claims

1. a kind of method of wireless communication, comprising:

Being determined by base station will be serviced using the first wireless access technology (RAT) to user equipment (UE) via the first communication link The first data flow the first dosis refracta；

First data flow to be serviced using the 2nd RAT to the UE via the second communication link is determined by the base station The second dosis refracta；

Service first score of first data flow to the UE using first communication link by the base station Amount；And

It is at least executed by the base station with the next item down:

When forbidding timer at runtime, the first dosis refracta and the second score using identified first data flow are avoided Amount, or

When the quantity of the score distribution variation for data flow exceeds threshold value within a certain period of time, avoid using identified institute State the first dosis refracta and the second dosis refracta of the first data flow.

2. according to the method described in claim 1, wherein, first dosis refracta of first data flow or first number At least one of second dosis refracta according to stream is determined based on configuration or majorized function.

3. according to the method described in claim 2, wherein, the majorized function is based at least one of the following:

Data flow to the distribution of communication link,

The channel conditions of each of first RAT and the 2nd RAT RAT,

The state of affairs of each of first RAT and the 2nd RAT RAT,

The resource of first RAT and the 2nd RAT,

The channel loading of first communication link and second communication link, or

First communication link and the data rate on second communication link and the difference between delay.

4. according to the method described in claim 1, further include:

Send the control letter for being directed to first data flow to the UE using the first RAT via first communication link Breath and the control information that first data flow is directed to from UE reception, or

Send the control for being directed to first data flow to the UE using the 2nd RAT via second communication link Information processed and the control information that first data flow is directed to from UE reception.

5. according to the method described in claim 4, wherein, the control information includes at least one of the following: being used for Configure the radio resource of the fractional transmission on each communication link in first communication link and second communication link Control (RRC) message, wireless spread-spectrum technology (RLC) message and Packet Data Convergence Protocol (PDCP) status message.

6. according to the method described in claim 1, further include:

Receive the feedback letter for being directed to first data flow from the UE using the first RAT via first communication link Breath,

It is received from the UE for the described anti-of first data flow via second communication link using the 2nd RAT Feedforward information, or

The feedback information for being directed to first data flow is received according to the 2nd RAT.

7. according to the method described in claim 6, wherein, the feedback information includes at least one feedback message, it is described at least One feedback message includes UE measurement result and the 2nd RAT measurement result.

8. according to the method described in claim 1, wherein, first dosis refracta of first data flow and second point described Quantity based on the optimization to system utility, the optimization to system utility can between carrying use ratio it is fair.

9. according to the method described in claim 1, further include:

Determination will by the UE via first communication link using the first RAT come the third of the second data flow sent Dosis refracta；

Second data flow that determination will be sent using the 2nd RAT by the UE via second communication link 4th dosis refracta；And

The third dosis refracta of second data flow is received from the UE via first communication link.

10. according to the method described in claim 9, wherein, first data flow includes downlink traffic and described Two data flows include uplink service.

11. according to the method described in claim 9, further include:

Determine whether channel quality is lower than threshold value；And

When the channel quality is lower than the threshold value, identified first dosis refracta, the second dosis refracta, third dosis refracta are updated With the 4th dosis refracta.

12. according to the method described in claim 1, further include regularly to first dosis refracta of first data flow and The definitive result of second dosis refracta is assessed.

13. according to the method described in claim 9, further include regularly to the third dosis refracta of second data flow and The definitive result of 4th dosis refracta is assessed.

14. according to the method for claim 12, wherein first dosis refracta to first data flow and described the The definitive result of the third dosis refracta and the 4th dosis refracta of two dosis refractas and second data flow is assessed Including at least one in the following terms operation:

For the carrying serviced on first communication link and described second communication link the two, to the first RAT with The difference of effective data rate and delay between 2nd RAT optimizes,

When forbidding timer at runtime, the third dosis refracta and the 4th score using identified second data flow are avoided Amount, or

When the quantity of the score distribution variation for data flow exceeds threshold value within a certain period of time, avoid using identified institute State the third dosis refracta and the 4th dosis refracta of the second data flow.

15. according to the method described in claim 9, further include to the UE send message, wherein the message to the UE into Row is configured to be sent the third score of second data flow using the first RAT via first communication link Amount and the 4th score for sending second data flow using the 2nd RAT via second communication link Amount.

16. according to the method described in claim 1, further include: based on being kept for first communication link and described The Token Bucket Policing of two communication links is based on scoring probability, to realize the first score of identified first data flow The third dosis refracta and the 4th dosis refracta of amount and the second dosis refracta and identified second data flow.

17. according to the method described in claim 1, wherein it is determined that first dosis refracta of first data flow or determination Second dosis refracta of first data flow is based at least partially on the report from the UE.

18. according to the method described in claim 1, wherein it is determined that first dosis refracta of first data flow or determination Second dosis refracta of first data flow is Dynamic Execution or to be based at least partially on reception whithin a period of time It is executed to the report from the UE.

19. according to the method described in claim 1, wherein, when the channel quality of second communication link is lower than threshold value or When minimum modulation and encoding scheme (MCS) cannot be selected for second communication link, first data flow The definitive result of first dosis refracta is 1, and the definitive result of second dosis refracta of first data flow is 0.

20. a kind of device for wireless communications, comprising:

For by base station determine will via the first communication link using the first wireless access technology (RAT) come to user equipment (UE) The unit of first dosis refracta of the first data flow of service；

For determining first number to service using the 2nd RAT to the UE via the second communication link by the base station According to the unit of the second dosis refracta of stream；

For servicing described the first of first data flow to the UE using first communication link by the base station The unit of dosis refracta；And

For at least executing the unit with the next item down by the base station:

21. device according to claim 20, wherein first dosis refracta of first data flow or described first At least one of described second dosis refracta of data flow is determined based on the following terms:

Configuration, or

Majorized function, the majorized function are based at least one of the following:

Data flow to the distribution of communication link,

The channel conditions of each of first RAT and the 2nd RAT RAT,

The state of affairs of each of first RAT and the 2nd RAT RAT,

The resource of first RAT and the 2nd RAT,

22. device according to claim 20, further includes:

For sending the control for being directed to first data flow to the UE using the first RAT via first communication link Information processed and the unit that the control information for first data flow is received from the UE, or

For sending the institute for being directed to first data flow to the UE using the 2nd RAT via second communication link It states control information and receives the unit of the control information for first data flow from the UE.

23. device according to claim 20, further includes:

For being received from the UE for the anti-of first data flow via first communication link using the first RAT The unit of feedforward information,

For being received from the UE for the anti-of first data flow via second communication link using the 2nd RAT The unit of feedforward information, or

For receiving the unit of the feedback information for first data flow according to the 2nd RAT.

24. device according to claim 20, further includes:

The second data flow that sent using the first RAT by the UE via first communication link for determination The unit of third dosis refracta；

Second data that sent via second communication link using the 2nd RAT by the UE for determination The unit of 4th dosis refracta of stream；And

For the unit of the third dosis refracta of second data flow to be received from the UE via first communication link.

25. device according to claim 24, further includes:

For determining whether channel quality is lower than the unit of threshold value；And

For updating identified first dosis refracta, the second dosis refracta, third point when the channel quality is lower than the threshold value The unit of quantity and the 4th dosis refracta.

26. device according to claim 20 further includes for regularly to described first point of first data flow The unit that quantity and the definitive result of second dosis refracta are assessed.

27. device according to claim 24 further includes the unit for sending message to the UE, wherein described to disappear Breath configures to send second data flow using the first RAT via first communication link UE The third dosis refracta and the institute for sending second data flow using the 2nd RAT via second communication link State the 4th dosis refracta.

28. device according to claim 20, further includes: be kept for first communication link and institute for being based on It states the Token Bucket Policing of the second communication link or is based on scoring probability, to realize the first of identified first data flow The unit of the third dosis refracta and the 4th dosis refracta of dosis refracta and the second dosis refracta and identified second data flow.

29. a kind of device for wireless communications, comprising:

Memory；And

At least one processor is coupled to the memory and is configured as:

It is at least executed by the base station with the next item down:

30. a kind of computer-readable medium, has the code being stored thereon, the code is when executed by the processor, real Now following operation:

Being determined by base station will be via the of first data flow that the second communication link is serviced using the 2nd RAT to the UE Two dosis refractas；

Service first dosis refracta of first data flow to the UE using first communication link by base station；With And

It is at least executed by the base station with the next item down: