CN105934971A - Techniques for dynamically splitting bearers between various radio access technologies (RATS) - Google Patents

Abstract

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines a first fractional amount of a first data flow to be served to a UE via a first communication link using a first radio access technology (RAT), determines a second fractional amount of the first data flow to be served to the UE via a second communication link using a second RAT, and serves the first fractional amount of the first data flow to the UE using the first communication link.

Description

For dynamically splitting the technology of carrying between various access technologies (RAT)

To Cross-Reference to Related Applications

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

Technical field

Putting it briefly, present disclosure relates to communication system, more particularly, it relates to for various The technology of carrying is dynamically split between wireless access technology (RAT).

Background technology

Wireless communication system is widely deployed to provide such as phone, video, data, message transmission Various telecommunications service with broadcast etc.Typical wireless communication system can use can be by sharing Available system resource (such as, bandwidth, transmitting power) is supported many with the communication of multiple users Location technology.The example of this multiple access technology includes CDMA (CDMA) system, time division multiple acess (TDMA) system, frequency division multiple access (FDMA) system, OFDM (OFDMA) are System, single-carrier frequency division multiple access (SC-FDMA) system and TD SDMA (TD-SCDMA) System.

In various telecommunication standards, adopt these multiple access technologies, make different wireless devices to provide The common protocol communicated can be carried out on city, country, area, even whole world aspect.A kind of new The example of emerging telecommunication standard is Long Term Evolution (LTE).LTE is by third generation partner program (3GPP) the enhancing set of the mobile standard of the UMTS (UMTS) issued.LTE It is designed to by improving spectrum efficiency, reduction expense, improvement service, utilizing new frequency spectrum to carry out more preferable twelve Earthly Branches Hold mobile broadband linking Internet, and with on downlink (DL), use OFDMA, upper Line link (UL) is upper uses SC-FDMA and use multiple-input and multiple-output (MIMO) antenna skill Other open standard of art is preferably integrated.But, along with the demand accessing mobile broadband is held Continuous increase, exists the demand improved further in LTE technology.Preferably, these improvement should It is applicable to other multiple access technology and uses the telecommunication standard of these technology.

Summary of the invention

This document describes for dynamically splitting carrying between various wireless access technologys (RAT) Technology.In the aspect of present disclosure, it is provided that a kind of method, computer program and device. Described device determines that a RAT will be used to come to subscriber equipment (UE) via the first communication link services The first dosis refracta of the first data stream, determine will via the second communication link use the 2nd RAT come to Second dosis refracta of the described first data stream of described UE service, and use described first communication link To service described first dosis refracta of described first data stream to described UE.

In an aspect, described first dosis refracta of described first data stream or described first data stream Described second dosis refracta at least one based on configuration or majorized function determine.At one In aspect, described majorized function is based at least one in the following: data flow to communication link Distribution, the channel conditions of each RAT in a described RAT and described 2nd RAT, described The state of affairs of each RAT in oneth RAT and described 2nd RAT, a described RAT and The resource of described 2nd RAT, described first communication link and the channel loading of described second communication link, Or the difference between data rate and the delay on described first communication link and described second communication link Different.

In an aspect, described device via described first communication link use a described RAT to Described UE sends the control information for described first data stream and receives for described from described UE The control information of the first data stream, or via described second communication link use described 2nd RAT to Described UE send for described first data stream described control information and from described UE receive for The described control information of described first data stream.In an aspect, described control information includes following At least one in every: for configuring in described first communication link and described second communication link Wireless heterogeneous networks (RRC) message of the fractional transmission on each communication link, wireless spread-spectrum technology (RLC) message and PDCP (PDCP) status message.

In an aspect, described device via described first communication link use a described RAT from Described UE receives the feedback information for described first data stream, uses via described second communication link Described 2nd RAT receives for the feedback information of described first data stream from described UE, or according to Described 2nd RAT receives the feedback information for described first data stream.In an aspect, described Feedback information includes that at least one feedback message, at least one feedback message described comprise UE measurement result With the 2nd RAT measurement result.In an aspect, described first dosis refracta of described first data stream With described second dosis refracta based on the optimization to system utility, the described optimization to system utility can be Equitable proportion is used between carrying.

In an aspect, described device determines and to be used via described first communication link by described UE 3rd dosis refracta of the second data stream that a described RAT sends, determine will by described UE via 4th dosis refracta of the described second data stream that described second communication link use the 2nd RAT sends, And receive described 3rd point of described second data stream from described UE via described first communication link Quantity.In an aspect, described first data stream packets includes downlink traffic and described second number Uplink service is included according to stream.

In an aspect, described device determines whether channel quality is less than threshold value, and when described letter When road quality is less than described threshold value, the first dosis refracta determined by renewal, the second dosis refracta, the 3rd point Quantity and the 4th dosis refracta.

In an aspect, described device described first dosis refracta to described first data stream termly It is estimated with the determination result of described second dosis refracta.In an aspect, described device is termly Described 3rd dosis refracta of described second data stream and the determination result of described 4th dosis refracta are commented Estimate.

In an aspect, described first dosis refracta and described second mark to described first data stream The determination result of amount and described 3rd dosis refracta of described second data stream and described 4th dosis refracta is entered Row assessment includes at least one in the following operation: at described first communication link and described The carrying serviced on second communication link, to having between a described RAT and described 2nd RAT The difference of effect data rate and delay is optimized；When forbidding that intervalometer is operationally, it is to avoid application institute First dosis refracta of the described first data stream determined and the second dosis refracta or determined by described second number The 3rd dosis refracta and the 4th dosis refracta according to stream；Or when the mark for data stream distributes the number of change When amount is within a certain period of time beyond threshold value, it is to avoid determined by application first point of described first data stream Quantity and the second dosis refracta and avoid described second data stream determined by application the 3rd dosis refracta and 4th dosis refracta.

In an aspect, described device sends message to described UE, and wherein, described message is to described UE carries out configuring to use a described RAT to send described second via described first communication link Described 3rd dosis refracta of data stream and use described 2nd RAT to come via described second communication link Send described 4th dosis refracta of described second data stream.

In an aspect, described device is based on being kept for described first communication link and described The Token Bucket Policing of two communication links or based on scoring probability (fraction probability), realizes Determined by the first dosis refracta of described first data stream and the second dosis refracta and determined by described 3rd dosis refracta of two data streams and the 4th dosis refracta.

In an aspect, determine described first dosis refracta of described first data stream or determine described Described second dosis refracta of one data stream is based at least partially on the report from described UE.A side In face, determine described first dosis refracta of described first data stream or determine the institute of described first data stream State the second dosis refracta be within a period of time Dynamic Execution or be based at least partially on receive from The report of described UE and perform.In an aspect, when the channel quality of described second communication link Less than during threshold value or when minimum modulation and encoding scheme (MCS) cannot be selected for described second During communication link, the determination result of described first dosis refracta of described first data stream is 1, and described The determination result of described second dosis refracta of one data stream is 0.

In an aspect of present disclosure, a kind of device for wireless communications includes: for really Surely the first wireless access technology (RAT) is used to carry out first to UE service via the first communication link The unit of the first dosis refracta of data stream, is used for determining and to use the 2nd RAT via the second communication link The unit of the second dosis refracta of the described first data stream serviced to described UE, and be used for using institute State the first communication link and to service to described UE the list of described first dosis refracta of described first data stream Unit.

In an aspect, described first dosis refracta of described first data stream or described first data stream Described second dosis refracta at least one based on configuration or majorized function determine.

In an aspect, described majorized function is based at least one in the following: data flow to The channel of each RAT in the distribution of communication link, a described RAT and described 2nd RAT The state of affairs of each RAT in situation, a described RAT and described 2nd RAT, described Oneth RAT and the resource of described 2nd RAT, described first communication link and described second communication link Channel loading or described first communication link and described second communication link on data rate and Difference between delay.

In an aspect, described device also includes: for using institute via described first communication link State a RAT to send for the control information of described first data stream and from described UE to described UE Receive the unit of the control information for described first data stream, or for via described second communication Link uses described 2nd RAT to send the described control letter for described first data stream to described UE Cease and receive from described UE the unit of the described control information for described first data stream.At one In aspect, described control information includes at least one in the following: is used for configuring described first and leads to Letter link and described second communication link in each communication link on fractional transmission RRC information, RLC message and PDCP status message.

In an aspect, described device also includes: for using institute via described first communication link State the unit that a RAT receives the feedback information for described first data stream from described UE, be used for Described 2nd RAT is used to receive for described first number from described UE via described second communication link According to the unit of described feedback information of stream, or for receiving for described the according to described 2nd RAT The unit of the feedback information of one data stream.In an aspect, described feedback information includes at least one Feedback message, at least one feedback message described comprises UE measurement result and the 2nd RAT measurement result.

In an aspect, described first dosis refracta of described first data stream and described second dosis refracta Based on the optimization to system utility, the described optimization to system utility can use ratio between carrying Fair.

In an aspect, described device also includes: being used for determining will be by described UE via described first The unit of the 3rd dosis refracta of the second data stream that the communication link described RAT of use sends, uses In determining to be used the 2nd RAT to send by described UE via described second communication link described the The unit of the 4th dosis refracta of two data streams, for receiving from described UE via described first communication link The unit of described 3rd dosis refracta of described second data stream.In an aspect, described first data Stream includes that downlink traffic and described second data stream packets include uplink service.

In an aspect, described device also includes: for determining that whether channel quality is less than threshold value Unit, and it is used for when described channel quality is less than described threshold value, the first mark determined by renewal Amount, the second dosis refracta, the 3rd dosis refracta and the unit of the 4th dosis refracta.

In an aspect, described device also includes: be used for the institute termly to described first data stream State the unit that the determination result of the first dosis refracta and described second dosis refracta is estimated.

In an aspect, described device also includes: be used for the institute termly to described second data stream State the unit that the determination result of the 3rd dosis refracta and described 4th dosis refracta is estimated.In one aspect In, for termly to described first dosis refracta of described first data stream and described second dosis refracta with And described described 3rd dosis refracta of the second data stream and the determination result of described 4th dosis refracta comment The unit estimated is configured at least one in the following operation: communicate for described first The carrying serviced on link and described second communication link, to a described RAT and described second Effective data rate and the difference of delay between RAT are optimized；When forbidding intervalometer operationally, Avoid the first dosis refracta of described first data stream determined by application and the second dosis refracta or determined by 3rd dosis refracta of described second data stream and the 4th dosis refracta；Or when the mark for data stream divides When the quantity of distribution transforming is within a certain period of time beyond threshold value, it is to avoid described first data determined by application First dosis refracta of stream and the second dosis refracta and avoid determined by application the of described second data stream Three dosis refractas and the 4th dosis refracta.

In an aspect, described device also includes: for sending the unit of message to described UE, its In, described UE is configured to use described first via described first communication link by described message RAT sends described 3rd dosis refracta of described second data stream and via described second communication link Use described 2nd RAT to send described 4th dosis refracta of described second data stream.

In an aspect, described device also includes: for based on being kept for described first communication Link and the Token Bucket Policing of described second communication link or based on scoring probability, realize being determined The first dosis refracta of described first data stream and the second dosis refracta and determined by described second data 3rd dosis refracta of stream and the unit of the 4th dosis refracta.

In an aspect, for determine described first data stream described first dosis refracta unit or For determining that the unit of described second dosis refracta of described first data stream is configured at least part of ground In performing to determine from the report of described UE.

In an aspect, for determining described first dosis refracta of described first data stream or determining institute The unit of described second dosis refracta stating the first data stream is configured to dynamically perform within a period of time Determine or be based at least partially on to receive and perform to determine from the report of described UE.

In an aspect, when the channel quality of described second communication link is less than threshold value or when minimum MCS when cannot be selected for described second communication link, described the first of described first data stream The determination result of dosis refracta is 1, and the determination result of described second dosis refracta of described first data stream is 0。

In an aspect of present disclosure, a kind of device for wireless communications includes: memorizer； And at least one processor, it is coupled to described memorizer and is configured to: determining will be via One communication link uses a RAT to carry out the first dosis refracta of the first data stream to UE service, determines The described first data stream that services to described UE of the 2nd RAT is used via the second communication link Second dosis refracta, and use described first communication link to come to the described UE described first data stream of service Described first dosis refracta.

In an aspect of present disclosure, a kind of computer program includes: computer-readable Medium, it includes the code for carrying out following operation: determines and to use the via the first communication link One RAT carrys out the first dosis refracta of the first data stream to UE service, and determining will be via the second communication chain Second dosis refracta of the described first data stream that road use the 2nd RAT services to described UE, and Described first communication link is used to service described first mark of described first data stream to described UE Amount.

Each example referring to present disclosure as shown in the accompanying drawings describes in further detail The various aspects of present disclosure and feature.Although present disclosure describes with reference to each example, It is understood that present disclosure is not only restricted to these examples.The ability instructed herein can be touched Field technique personnel it will be recognized that described herein scope of the present disclosure within and present disclosure Extra realization, amendment and the example that may have important practicality about it and other use neck Territory.

Accompanying drawing explanation

Fig. 1 is the various aspects according to present disclosure, it is shown that the diagram of the example of the network architecture.

Fig. 2 is the various aspects according to present disclosure, it is shown that the diagram of the example of access network.

Fig. 3 is the various aspects according to present disclosure, it is shown that the example of the DL frame in LTE Diagram.

Fig. 4 is the various aspects according to present disclosure, it is shown that the example of the UL frame in LTE Diagram.

Fig. 5 is the various aspects according to present disclosure, it is shown that for user plane and control plane The diagram of example of radio protocol architecture.

Fig. 6 is the various aspects according to present disclosure, it is shown that the evolved node B in access network Diagram with the example of subscriber equipment.

Fig. 7 A is the various aspects according to present disclosure, it is shown that the data between UE and PDN The diagram of the wireless communication system of the example in path.

Fig. 7 B is the various aspects according to present disclosure, it is shown that the data between UE and PDN The diagram of the wireless communication system of the example in path.

Fig. 8 is the various aspects according to present disclosure, it is shown that the stream of a kind of method of radio communication Cheng Tu.

Fig. 9 is the various aspects according to present disclosure, it is shown that the stream of a kind of method of radio communication Cheng Tu.

Figure 10 A and Figure 10 B is the various aspects according to present disclosure, it is shown that a kind of radio communication The flow chart of method.

Figure 11 is the various aspects according to present disclosure, it is shown that the disparate modules in exemplary means The conceptual data flow figure of the data stream between/unit/assembly.

Figure 12 is the various aspects according to present disclosure, it is shown that use device hard of processing system The diagram of the example that part realizes.

Detailed description of the invention

The detailed description illustrated below in conjunction with the accompanying drawings is intended to as the description to various configurations, and not purport Representing the unique configuration that wherein can put into practice concepts described herein.For providing each conception of species The thorough purpose understood, describe in detail and include concrete details.But, for people in the art It is readily apparent that these concepts are put into practice in the case of can not having these details for Yuan. In some instances, known structure and assembly are shown in form of a block diagram, in order to avoid obscuring these general Read.

Some aspects of telecommunication system are presented now with reference to various apparatus and method.These devices and Method will be described in the following detailed description, and in the accompanying drawings by various frames, module, group Part, circuit, step, process, algorithm etc. (being referred to as " key element ") are illustrated.These are wanted Element can use electronic hardware, computer software or its combination in any to realize.As for these key elements It is implemented as hardware or software, depends on application-specific and the design constraint being applied in total system.

For example, the combination in any of key element or any part of key element or key element can be with including " processing system " of one or more processors realizes.The example of processor includes being configured to hold Row runs through at the microprocessor of various functions described by present disclosure, microcontroller, digital signal Reason device (DSP), field programmable gate array (FPGA), PLD (PLD), state Machine, gate control logic device, discrete hardware circuit and other suitable hardware.In processing system one Or multiple processor can perform software.Either be referred to as software, firmware, middleware, microcode, Hardware description language or other term, software should be broadly interpreted as represent instruction, instruction set, Code, code segment, program code, program, subprogram, software module, application, software application, Software kit, routine, subroutine, object, executable file, the thread of execution, process, function etc. Deng.

Therefore, in one or more exemplary embodiments, described function can use hardware, soft Part, firmware or its combination in any realize.If realized with software, the most described function can be deposited The one or more instructions stored up or be encoded on computer-readable medium or code.Computer-readable medium Including computer-readable storage medium.Storage medium can be can be by any usable medium of computer access. Nonrestrictive mode by way of example, such computer-readable medium can include that random access memory is deposited Reservoir (RAM), read only memory (ROM), electrically erasable ROM (EEPROM), Compact disk ROM (CD-ROM) or other optical disc storage, disk storage or other magnetic storage apparatus, Or may be used for carrying or store have instruction or the desired program code of data structure form and Can be by other medium any of computer access.Combinations of the above should also be as being included in computer-readable Within the scope of medium.

Fig. 1 is the various aspects according to present disclosure, it is shown that the diagram of LTE network framework 100. LTE network framework 100 is properly termed as evolved packet system (EPS) 100.EPS 100 can include One or more subscriber equipmenies (UE) 102, Evolved UMTS Terrestrial Radio Access Network (E-UTRAN) Internet protocol (IP) of 104, evolution block core (EPC) 110 and operator Service 122.EPS 100 with other access of internet interlock, but for the sake of simplicity, can be shown without that A little entity/interfaces.As indicated, EPS 100 provides packet-switched services, but, such as art technology Personnel will readily appreciate that, can will pass through each conception of species that present disclosure presented and expand to carry Network for circuit switched service.

E-UTRAN 104 includes evolved node B (eNB) 106 and other eNB 108, and can To include multicast coordination entity (MCE) 128.ENB 106 provides the user towards UE 102 and control Plane protocol terminations processed.ENB 106 can be connected to other eNB via backhaul (such as, X2 interface) 108.MCE 128 distribution is for evolution type multimedia broadcast multicast service (MBMS) (eMBMS) Time/frequency Radio Resource, and determine radio configuration for eMBMS (such as, modulation and Encoding scheme (MCS)).MCE 128 can be single entity or a part of eNB 106. ENB 106 can also be referred to as base station, node B, access point, base transceiver station, wireless base station, wireless Transceiver, transceiver function unit, Basic Service Set (BSS), extended service set (ESS) or Certain other suitable term.ENB 106 provides the access point to EPC 110 to UE 102.UE The example of 102 includes cell phone, smart phone, Session initiation Protocol (SIP) phone, on knee Computer, personal digital assistant (PDA), satellite radio device, global positioning system, multimedia set Standby, video equipment, digital audio-frequency player (such as, MP3 player), photographing unit, game control Platform, tablet device or the equipment of any other like function.UE 102 can also be by art technology Personnel be referred to as movement station, subscriber station, mobile unit, subscri er unit, radio-cell, remote unit, 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, visitor Family end or certain other suitable term.

ENB 106 is connected to EPC 110.EPC 110 can include Mobility Management Entity (MME) 112, home subscriber server (HSS) 120, other MME 114, gateway 116, multimedia Broadcast/multicast service (MBMS) gateway 124, broadcast/multicast service center (BM-SC) 126 and point Group data network (PDN) gateway 118.MME 112 is to process between UE 102 and EPC 110 The control node of signaling.Generally, MME 112 provides carrying and connection management.All User IPs are grouped Being transmitted by gateway 116, wherein gateway 116 itself is connected to PDN Gateway 118. PDN Gateway 118 provides the distribution of UE IP address and other function.PDN Gateway 118 and BM-SC 126 are connected to IP service 122.IP service 122 can include the Internet, Intranet, IP multimedia Subsystem (IMS), PS stream service (PSS) and/or other IP service.BM-SC 126 can carry For for MBMS user's service provision and the function of transmission.BM-SC 126 can serve as content The inlet point of provider's MBMS transmission, may be used for authorizing and initiate MBMS in PLMN and holds Carry service, and may be used for scheduling and transmit MBMS transmission.MBMS gateway 124 may be used for It is distributed to MBMS belong to the multicast broadcast single frequency network (MBSFN) broadcasting special services The eNB (such as, 106,108) in region, and session management (start/stop) can being responsible for and bear Duty collects the charge information that eMBMS is relevant.

Fig. 2 is the various aspects according to present disclosure, it is shown that the access network in LTE network framework The diagram of the example of network 200.In this example, access network 200 is divided into multiple cellular zone (community) 202.One or more lower-wattage grades eNB 208 can have with in community 202 The equitant cellular zone in one or more communities 210.Lower-wattage grade eNB 208 can be millimicro Microcell (such as, family eNB (HeNB)), picocell, Microcell or long distance wireless head end (RRH).Grand eNB 204 is each assigned to corresponding community 202, and is configured to community All UE 206 in 202 provide the access point to EPC 110.Although being somebody's turn to do in access network 200 Example does not exist centerized fusion device, but centerized fusion device can be used in the configuration substituted. ENB 204 is responsible for all wireless relevant functions, and it includes radio bearer control, access control, movement Property control, scheduling, safety and the connection to gateway 116.ENB can support one or many Individual (such as, three) community (it is also known as sector).Term " community " may refer to eNB Little overlay area and/or serve the eNB subsystem of particular coverage.Additionally, can exchange herein Ground uses term " eNB ", " base station " and " community ".

Depend on the concrete telecommunication standard disposed, modulation that access network 200 is used and multiple access side Case can change.In LTE applies, DL uses OFDM and uses on UL SC-FDMA, in order to support both FDD (FDD) and time division duplex (TDD).Such as ability Field technique personnel be will readily appreciate that by detailed description below, and each conception of species presented herein is non- Often it is suitable for LTE application.But, these concepts can be easily extended to use other modulation and Other telecommunication standard of multiple access technology.For example, these concepts can expand to Evolution-Data Optimized Or Ultra-Mobile Broadband (UMB) (EV-DO).EV-DO and UMB is to be counted by third generation affiliate Draw the air-interface standard of the part as CDMA2000 family of standards that 2 (3GPP2) issue, And using CDMA to come for movement station provides broadband internet to access.These concepts can be extended to: Use wideband CDMA (W-CDMA) and other modification (such as, TD-SCDMA) of CDMA General land wireless access (UTRA)；Use the global system for mobile communications (GSM) of TDMA； And use the evolved UTRA (E-UTRA) of OFDMA, IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20 and flash OFDM.At the document organized from 3GPP In describe UTRA, E-UTRA, UMTS, LTE and GSM.Organize from 3GPP2 Document describes CDMA2000 and UMB.The actual wireless communication standard used and multiple access skill Art will depend upon which the overall design constraints specifically applied and be applied in system.

ENB 204 can have the multiple antennas supporting MIMO technology.The use of MIMO technology makes Obtaining eNB 204 can use spatial domain to support spatial reuse, beam shaping and transmitting diversity.Space Multiplexing may be used for sending different data stream the most simultaneously.Data stream can be sent to Single UE 206 is to increase data rate, or is sent to multiple UE 206 to increase total system appearance Amount.This is by each data flows to (that is, applies amplitude and the contracting of phase place of row space precoding Put) and on DL, send each by multiple transmitting antennas subsequently and realize through the stream of spatial pre-coding 's.The data stream of the spatial pre-coding arriving UE 206 has different spatial signature, and this makes each Individual UE 206 can recover to go to one or more data streams of UE 206.On UL, each UE 206 sends the data stream through spatial pre-coding, this eNB 204 is capable of identify that each is through sky Between the source of data stream of precoding.

When channel conditions are good, spatial reuse is generally used.When channel conditions is not good enough, can make With beam shaping, transmission energy is concentrated in one or more direction.These can be by via many The data of individual antenna transmission carry out spatial pre-coding and realize.Good in order to realize at cell edge Cover, single current beam-forming transmission can be used in conjunction with launching diversity.

In the following detailed description, by with reference to supporting that on DL the mimo system of OFDM is retouched State the various aspects of access network.OFDM is to modulate data onto to carry at many height in OFDM symbol Spread spectrum on ripple.These subcarriers are opened with accurate frequency interval.This interval provides " orthogonal Property ", described " orthogonality " allows a receiver to recover data from these subcarriers.In the time domain, Protection interval (such as, Cyclic Prefix) can be added, to overcome OFDM to each OFDM symbol Intersymbol interference.UL can have the SC-FDMA of DFT extension ofdm signal form with use, To compensate height power ratio (PARR).

Fig. 3 is the various aspects according to present disclosure, it is shown that showing of the DL frame structure in LTE The diagram 300 of example.Frame (10ms) can be divided into the subframe of 10 equal sizes.Each height Frame can include two continuous print time slots.A resource grid can be used to represent two time slots, often One time slot includes a Resource Block.Resource grid is divided into multiple Resource Unit.In LTE, For conventional cyclic prefix, Resource Block comprises in frequency domain in 12 continuous print subcarriers and time domain 7 Individual continuous print OFDM symbol, corresponding to 84 Resource Units altogether.For extended cyclic prefix, one Individual Resource Block comprises in frequency domain 6 continuous print OFDM symbol in 12 continuous print subcarriers and time domain, Corresponding to 72 Resource Units altogether.In described Resource Unit some (its be indicated as R 302, 304) DL reference signal (DL-RS) is included.DL-RS includes community specific RS (CRS) (its Sometimes public RS it is also known as) 302 and UE specific RS (UE-RS) 304.Only at corresponding thing Reason DL shares transmission UE-RS 304 on the Resource Block that channel (PDSCH) be mapped to.Each Amount of bits entrained by Resource Unit depends on modulation scheme.Therefore, the Resource Block that UE receives is the most And modulation scheme is the highest, then the data rate of this UE is the highest.

Fig. 4 is the various aspects according to present disclosure, it is shown that showing of the UL frame structure in LTE The diagram 400 of example.The available resource block being used for UL can be divided into data segment and control section.Control Section can be formed at the Liang Ge edge of system bandwidth and can have configurable size.Can be by Resource block assignments in control section is to UE, in order to transmission control information.Data segment can include control section The all Resource Block not included.This UL frame structure result in the data segment including continuous subcarrier, its The all continuous subcarrier in single UE distribution data segment can be allowed.

Can be to Resource Block 410a, the 410b in UE distribution control section, in order to send to eNB and control Information.Can also be to Resource Block 420a, the 420b in UE distribution data segment, in order to send to eNB Data.On the Resource Block that UE can be distributed in control section, control channel (PUCCH) at physics UL Middle transmission control information.On the Resource Block that UE can be distributed in data segment, share at physics UL Channel (PUSCH) only sends data or sends data and control both information.UL transmission can To cross over whole two time slots of a subframe, and frequency can be crossed over carry out saltus step.

The system access that incompatible execution is initial that collects of Resource Block can be used, and access letter at physical accidental Road (PRACH) 430 realizes UL synchronize.PRACH 430 carries random sequence, and can not To carry any UL data/signaling.Each random access lead code occupies and six continuous resource blocks Corresponding bandwidth.Initial frequency is specified by network.It is to say, random access lead code Transmission is limited to special time and frequency resource.For PRACH, there is not frequency agility.? Carry PRACH in single subframe (1ms) or in the sequence of some continuous subframes to attempt, and UE can only carry out single PRACH trial at each frame (10ms).

Fig. 5 is the various aspects according to present disclosure, it is shown that in LTE, user and control are flat The diagram 500 of the example of the radio protocol architecture in face.Radio protocol architecture for UE and eNB shows Go out for having three layers: layer 1, layer 2 and layer 3.Layer 1 (L1 layer) is lowermost layer, and realizes each Plant physical layer signal and process function.Herein L1 layer is referred to as physical layer 506.Layer 2 (L2 layer) 508 Higher than link on physical layer 506, and responsible physical layer 506, between UE and eNB.

In user plane, L2 layer 508 includes medium access control (MAC) sublayer 510, wireless Link controls (RLC) sublayer 512 and packet data convergence protocol (PDCP) 514 sublayer, these Sublayer terminates at the eNB of network side.It is not shown, but UE can have higher than L2 layer Some upper stratas of 508, (such as, it be included in the Internet terminated at the PDN Gateway 118 of network side IP layer) and connect the other end (such as, far-end UE, server etc.) place terminate application Layer.

PDCP sublayer 514 provides the multiplexing between different radio carrying and logic channel.PDCP sublayer 514 also provide for the header-compressed for upper layer data packet, are wirelessly transferred expense to reduce, pass through logarithm It is encrypted according to packet and realizes safety, and provide the switching support between eNB for UE.RLC Sublayer 512 provides Segmentation and Reassembly, the re-transmission of lost data packet and the data that upper layer data is grouped The rearrangement of packet, in order to it is out of order that compensation causes due to hybrid automatic repeat-request (HARQ) Receive.Media access control sublayer 510 provides the multiplexing between logic channel and transmission channel.Media access control sublayer 510 It is also responsible between UE distributing the various Radio Resources (such as, Resource Block) in a community.MAC Sublayer 510 is also responsible for HARQ operation.

In the control plane, for physical layer 506 and L2 layer 508, except not existing for controlling Outside the header compression function of plane, essentially identical for the radio protocol architecture of UE and eNB.Control Plane processed also includes wireless heterogeneous networks (RRC) sublayer 516 in layer 3 (L3 layer).RRC Layer 516 is responsible for obtaining Radio Resource (such as, radio bearer), and is responsible for the chien shih at eNB and UE Low layer is configured by RRC signaling.

Fig. 6 is the various aspects according to present disclosure, eNB 610 and UE 650 phase in access network The block diagram of communication.In DL, provide the upper-layer packet from core net to controller/processor 675. Controller/processor 675 realizes the function of L2 layer.In DL, controller/processor 675 based on Various priority metrics provide header-compressed, encryption, packet segmentation and rearrangement to UE 650, patrol Collect the multiplexing between channel and transmission channel and Radio Resource distribution.Controller/processor 675 is the most negative Blame HARQ operation, the re-transmission of lost packets and send signaling to UE 650.

Send (TX) processor 616 and realize the various signal processing merits of L1 layer (that is, physical layer) Energy.These signal processing functions include: for contributing to forward error correction (FEC) at UE 650 and The coding carried out and intertexture, and based on various modulation schemes (such as, binary phase shift keying (BPSK), orthogonal PSK (QPSK), M phase phase-shift keying (M-PSK), the orthogonal width in M rank Degree modulation (M-QAM)) it is mapped to signal constellation (in digital modulation).Subsequently, encoded and modulation symbol is divided It is slit into parallel stream.Subsequently, map each flow to OFDM subcarrier, at time domain and/or frequency domain On it is carried out multiplexing with reference signal (such as, pilot tone), and use fast Fourier transforma subsequently Change (IFFT) to be combined together to each stream generate the physics letter carrying time-domain OFDM symbol stream Road.This OFDM is flow to row space precoding, to generate multiple spatial flow.Carry out channel estimator The channel of 674 is estimated to be determined for coding and modulation scheme and for realizing spatial manipulation.Permissible From reference signal and/or sent by UE 650 channel conditions feedback derive channel estimate.Subsequently, Each spatial flow is provided to different antennas 620 via single transmitter 618TX.Each transmitter 618TX can use corresponding spatial flow to be modulated RF carrier wave, in order to is transmitted.

At UE 650, each receiver 654RX receives signal by its corresponding antenna 652. Each receiver 654RX recovers modulation information on an rf carrier, and provides this information to connect Receive (RX) processor 656.RX processor 656 realizes the various signal processing functions of L1 layer.RX Processor 656 can perform spatial manipulation to described information, to recover to go to any space of UE 650 Stream.If multiple spatial flows UE to be gone to 650, then RX processor 656 can combine them into Single OFDM symbol stream.Subsequently, RX processor 656 uses fast Fourier transform (FFT) to incite somebody to action OFDM symbol stream transforms from the time domain to frequency domain.Frequency-region signal includes each for ofdm signal The independent OFDM symbol stream of subcarrier.It is determined by the most probable signal star sent by eNB 610 Seat puts the symbol and reference signal recovering and demodulating on each subcarrier.These soft-decisions are permissible Estimate based on by the calculated channel of channel estimator 658.Subsequently, these soft-decisions are solved Code and deinterleaving, to recover data and the control signal that eNB 610 initially sends on the physical channel. Subsequently, these data and control signal are supplied to controller/processor 659.

Controller/processor 659 realizes L2 layer.This controller/processor can be with storage program code It is associated with the memorizer 660 of data.Memorizer 660 is properly termed as computer-readable medium.At UL In, controller/processor 659 provide the demultiplexing between transmission channel and logic channel, packet recombining, Deciphering, header decompression, control signal process, to recover the upper-layer packet from core net.Subsequently, Thering is provided upper-layer packet to data sink 662, wherein data sink 662 represents all protocol layers higher than L2 layer. Various control signal can also be provided to carry out L3 process to data sink 662.Controller/processor 659 Be also responsible for using confirm (ACK) and/or Negative Acknowledgement (NACK) agreement to carry out error detection, To support HARQ operation.

In UL, data source 667 is for providing upper-layer packet to controller/processor 659.Data Source 667 represents all protocol layers higher than L2 layer.It is similar to combine the DL carried out by eNB 610 pass Defeated described function, controller/processor 659 is by providing header-compressed, encryption, packet segmentation And rearrangement, and Radio Resource based on eNB 610 distribution logic channel and transmission channel it Between carry out multiplexing, realize user plane and control plane L2 layer.Controller/processor 659 is the most negative Blame HARQ operation, the re-transmission of lost packets and send signaling to eNB 610.

TX processor 668 can use to be sent out from reference signal or eNB 610 by channel estimator 658 The channel derived in the feedback sent estimates to select suitable coding and modulation scheme, and contributes to realizing Spatial manipulation.Can provide by TX to different antennas 652 via single transmitter 654TX The spatial flow that reason device 668 generates.It is right that each transmitter 654TX can use corresponding spatial flow RF carrier wave is modulated, in order to be transmitted.

To be similar to that side being combined in described by the receiver function at UE 650 at eNB 610 UL transmission is processed by formula.Each receiver 618RX is connect by its corresponding antenna 620 The collection of letters number.Each receiver 618RX recovers modulation information on an rf carrier, and by this information It is supplied to RX processor 670.RX processor 670 can realize L1 layer.

Controller/processor 675 realizes L2 layer.Controller/processor 675 can be with storage program generation The memorizer 676 of code and data is associated.Memorizer 676 is properly termed as computer-readable medium.? In UL, controller/processor 675 provides the demultiplexing between transmission channel and logic channel, packet weight Group, deciphering, header decompression, control signal process, to recover the upper-layer packet from UE 650. The upper-layer packet from controller/processor 675 can be provided to core net.Controller/processor 675 Be also responsible for use ACK and/or NACK agreement to carry out error detection, to support HARQ operation.

Fig. 7 A is an aspect according to present disclosure, it is shown that UE 715 and PDN 740 (example Such as, the Internet) between the showing of wireless communication system 700-a of example of data path 745 and 750 Figure.In an aspect, data path 745 and 750 be configured to realize to from WWAN and The polymerization of the data of WLAN wireless access technology (RAT).Go out as shown in Figure 7A, channel radio Communication system 700-a can 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 Mobility Management Entity (MME) 730, gateway (SGW) 732, PDN Gateway can be included (PGW)734.Home subscriber system (HSS) 735 can be communicatively coupled with MME 734. UE 715 can include LTE wireless device 720 and WLAN wireless device 725.

ENB 705-a and WLAN AP 705-b can be put altogether or otherwise with the highest Speed communication (such as, connects via optical fiber).In the configuration of Fig. 7 A, UE 715 and WLAN AP 705-b Between the relevant data of EPS carrying can be routed to EPC 780 by eNB 705-a.With this Mode, can be along between eNB 705-a, EPC 780, PDN 740 and peer-entities 755 Same paths forward the data that all EPS carrying is relevant.

Going out as shown in Figure 7A, eNB 705 and WLAN AP 705-b can use one or many The polymerization of individual LTE component carrier or one or more WLAN component carrier to UE 715 provide to The access of PDN 740.Using this to the access of PDN 740, UE 715 can be with peer-entities 755 Communication.

MME 730 can be the control node processing the signaling between UE 715 and EPC 780.Logical Often, MME 730 can provide carrying and connection management.Therefore MME 730 can be responsible for idle pulley The SGW that UE follows the tracks of with paging, bearing activation and deexcitation with for UE 715 selects.MME 730 Can communicate with eNB 705-a on S1-MME interface.MME 730 can certification UE extraly 715 and realize and Non-Access Stratum (NAS) signaling of UE 715.

HSS 735 can the most also store subscriber data, management roaming limits, management The APN (APN) that subscriber can be accessed by, and subscriber is associated with MME 730.HSS 735 can be by S6a defined in evolved packet system (EPS) framework of 3GPP organizational standard Communicate with MME 730 on interface.

Going out as shown in Figure 7A, SGW 732 can be connected to MME 730 on S11 signaling interface And PDN Gateway 734 can be connected on S5 signaling interface.By MME 730, at LTE All User IPs packet of upper transmission can send SGW 732 to by eNB 705-a.SGW 732 May reside within user plane and serve as the shifting of switching between switching and different access technologies between eNB Dynamic property anchor point.PDN Gateway 734 can be supplied to the distribution of UE IP address and other function.

PDN Gateway 734 can provide to one or more external packet datas on SGi signaling interface The connection of network (such as PDN 740).PDN 740 can include that the Internet, Intranet, IP are many Media subsystem (IMS), (PS) stream service (PSS) and/or the other type of PDN of packet switch.

In this example, the user plane data between UE 715 and EPC 780 can be through same group One or more EPS carry, and no matter business is on the data path 745 of LTE link or WLAN Flow through on the data path 750 of link.EPSs one or more to this group carry relevant signaling or control Panel data processed can carry out the LTE wireless device 720 and EPC at UE 715 by means of eNB 705-a Transmit between the MME 730 of 780.

Going out as shown in Figure 7A, UE is simultaneously connected to eNB 705-a and WLAN AP 705-b, ENB 705-a and WLAN AP 705-b provides the wireless access links signaling with transmission user and data Business.Therefore, in the aspect of Fig. 7 A, can be come user by LTE or WLAN wireless link Data or signaling bear service.

Fig. 7 B is an aspect according to present disclosure, it is shown that between UE 715 and PDN 740 The diagram of wireless communication system 700-b of example of data path 745 and 752.Data path 745 It is at the channel radio for being polymerized the data from WLAN and WWAN wireless access technology with 752 Shown in the context of communication system 700-b, wireless communication system 700-b is substantially similar to Fig. 7 A's Wireless communication system 700-a.As shown in the configuration of Fig. 7 B, the eNB 705-a in Fig. 7 B and WLAN AP 705-b can not be that put altogether or can not be otherwise with communicate with one another.

In an aspect, eNB 705-a may determine that service on each communication link, carrying The amount of data service (also known as data stream).In an aspect, will be on each communication link The amount of this data stream of service can be this data stream dosis refracta and can be based on system optimization.Example As, eNB 705-a may determine that will be to UE 715 on the data path 752 of WLAN link 751 Server data stream 75% and take to UE 715 on the data path 745 of WWAN link 746 It is engaged in the 25% of this data stream.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 can include for carrying data stream in dl direction DL carrying and for carrying the UL carrying of data stream in the ul direction.In an aspect, eNB 705-a may determine that UE 715 by the amount of the data stream sent on each communication link and can send out Send and the UL for UE 715 is carried the one or more message configured.Such as, this or UL carrying can be configured by multiple message by instruction herein below: UE will use WLAN Link 751 sends the 30% of data stream in the ul direction and uses WWAN link 746 transmission to be somebody's turn to do The 70% of data stream.In an aspect, it is possible to use RRC agreement sends this to UE 715 Message.In an aspect, if via an access link (such as, UE 715 is configured to WWAN link 746 or WLAN link 751) send UL transmission, then eNB 705-a can not Send the UL to UE 715 and carry the one or more message configured.

In an aspect, the UL of UE 715 is carried these the one or more message configured also May indicate that to service to UE 715 (such as, in dl direction) on each communication link The determination result of the amount of data stream.Such as, if eNB 705-a determines a communication link (example As, the WWAN link 746 on data path 745) upper service all of DL carrying business, Then UE 715 can avoid monitoring other communication link (such as, WLAN link 751), thus real The power of existing UE 715 is saved.

In an aspect, each radio bearer of UE 715 can be configured to incite somebody to action in DL transmits Data stream from eNB 705-a be carried to UE 715 and UL transmit by data stream from UE 715 It is carried to eNB 705-a.In an aspect, the data serviced to UE 715 in transmitting at DL The dosis refracta of stream can be identical with the dosis refracta of the data stream that will receive from UE 715 in UL transmission. In one aspect of the method, the dosis refracta of the data stream that will service to UE 715 in DL transmits can be with The dosis refracta of the data stream received from UE 715 in transmitting at UL is different.

When operation during UE 715 is at RLC affirmation mode (AM), by the DL number entrained by carrying The feedback message for the UL data stream entrained by this carrying can be included according to stream, and entrained by carrying UL data stream can include that the feedback for the DL data stream entrained by this carrying and/or control disappear Breath.In an aspect, this feedback and/or control message can use WWAN link 746 Transfer without use WLAN link 751, or use WLAN link 751 to transfer without Use WWAN link 746.Such as, eNB 705-a can be configured at WWAN link 746 With send the dosis refracta of data stream on WLAN link 751 to UE, and can be configured with WWAN link 746 send carrying feedback and/or control message and without using WLAN link 751.For another example, when transmitting feedback on WLAN link 751 and/or controlling message, Feedback and/or the control message of carrying can be when it sends from UE 715 from WLAN AP 705-b quilts It is sent to eNB 705-a, and is sent to from eNB 705-a when it sends from eNB 705-a WLAN AP 705-b。

In an aspect, eNB 705-a can be based on collection on WWAN and WLAN link One or more statistical datas, determine by the data path 745 of WWAN link 746 to UE 715 service data stream dosis refracta and by the data path 750 at WLAN link 751 On to the dosis refracta of this data stream of UE 715 service.Such as, collect for WWAN link 746 Statistical data may include that CQI and MCS for each UE serviced by eNB 705-a, The DL buffer size that often carries and the UL Buffer Status Report, total wireless from each UE Resource service condition (such as, the frequency of WWAN resource and/or time component) and every user's is wireless Resource service condition and/or the hardware of WWAN and backhaul load.Such as, for WLAN link 751 The statistical data collected may include that MCS and the received signal strength indicator (RSSI) of every UE； The business that sends and receive, failure and the packet that abandons and retry trial；WLAN AP 705-b Channel loading；Total Radio Resource service condition (such as, the time component of WLAN resource) and The Radio Resource service condition of every user and/or the hardware of WLAN and backhaul load.

In an aspect, when eNB 705-a may determine that each in one or more time periods Between in section on WWAN link 746 and WLAN link 751 to the data stream of UE 715 service Dosis refracta.Such as, each time period in one or more time periods can be to approximate one second or other Reasonable time section.Such as, one or more time periods can be the identical persistent period or have not The same persistent period.In one aspect of the method, eNB 705-a can based on situation or event determine by To the dosis refracta of the data stream of UE 715 service on WWAN link 746 and WLAN link 751, Thus allow eNB 705-a rapidly the channel conditions of difference is reacted rather than waited a period of time, Dosis refracta will be updated within this time period.Such as, little as the RSSI of WLAN link 751 If when threshold value or WLAN AP 705-b can not select minimum MCS during time interval, Then eNB 705-a may determine that want completely on WWAN link 746 to UE 715 server data stream. In this example, eNB 705-a may determine that and will service to UE 715 on WLAN link 751 The dosis refracta of data stream is 0.

In an aspect, eNB 705-a can determine at WWAN link based on system optimization To the dosis refracta of the data stream of UE 715 service on 746 and WLAN links 751.Such as, system is excellent Change can be configured to make link (such as, the WWAN for available in wireless communication system 700-a Link 746 and WLAN link 751) overall system maximization of utility.In an aspect, eNB 705-a can be iteratively performed this system optimization.ENB 705-a can distribution will be at WWAN chain When the dosis refracta of the data stream of UE 715 service, ratio is used on the link 751 of road 746 and WLAN Fair (PF) tolerance realizes fairness.In an aspect, eNB 705-a can be determined by making Overall system utility function F (S) maximized distribution as defined in formula (1) increases total system 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 total throughout (such as, the bit up to the present carrying k Per second) filter value, and Δ X_k be carrying k expection handling capacity (example within the follow-up time period As, bits per second).Such as, S_k is the numerical value between 0 and 1, and its expression will be at WWAN The dosis refracta of the data stream of the carrying k of service on link 746, when using S_k, alpha_k (S_k) It is the function comprising the difference between the effective data rate on each link, and beta_k comprises often The difference between delay on individual link.Item alpha_k (S_k) and beta_k are on each link Difference between data rate and delay is optimized, so that the packet rearrangement at upper strata Impact minimize.It should be noted that, S instruction will be at WWAN link 746 or WLAN link 751 The distribution of each carrying of upper service, (such as, will be at WWAN link 746 and WLAN link The dosis refracta of the data stream of service on 751, so that S_k=0 is all corresponding to service on WLAN Carrying k and S_k=1 corresponding to service on WWAN all carrying k).

In one aspect of the method, eNB 705-a can be determined by making as defined in formula (2) Overall system utility function F (S) maximized distribution increases 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 of carrying k.In an aspect, eNB 705-a can be based on Data rate on each link estimates Y_k (such as, WWAN link 746 and WLAN chain Road 751).Such as, if Y ' _ k is defined as representing LTE data rate and Y " _ k is defined as Represent WLAN data speed, then eNB 705-a can determine Y_k based on formula (3):

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

In above-mentioned formula 1 to 3, all carryings that carrying index k is applied in system, including By configuring and the carrying of service on only one link.Therefore, can be by the impact of all carryings It is included in system optimization.Additionally, each carrying index k and direction link (such as, UL or DL) it is associated, and therefore UL and DL carrying can all be considered in system optimization.Such as, Can be for up-link carrying and both calculating overall system utility function F (S) of downlink carrying.

In an aspect, (such as, eNB 705-a can be assigned to each link by comprising WWAN link 746 and WLAN link 751) on the change of priority of each carrying to being System utility function F (S) is optimized.Such as, WWAN link 746 and WLAN link 751 can QoS is provided by packet scheduling to carrying to continue on through.Such as, if scheduler is in different QoS grade Carrying between distribute higher priority, then function F (S) can be modified to comprise this priority In change.

In an aspect, eNB 705-a can be by comprising each link (such as, WWAN chain Road 746 and WLAN link 751) on the change of data rate system utility function F (S) is entered Row optimizes, so that similar delay and handling capacity can be kept on each link.Therefore, it can The delay distortion making the packet serviced on each link minimizes, and can reduce or avoid upper The impact of the rearrangement of the packet at Ceng.

In an aspect, it is used for making function F (S) maximized search volume have and is defined as carrying The dimension of sum.In in this regard, eNB 705-a can get rid of carrying based on one or more situations Some in sum, thus reduce dimension.Such as, these situations may include that (a) carrying segmentation The situation triggered or event (such as, if an access link (such as, WWAN link 746) It is poor (such as, less than threshold value), and another link (such as, WLAN link 751) is can Accept time, switching carrier), (b) carrying is configured with only WWAN link 746 or only WLAN link 751, what (c) carried forbids that intervalometer is currently running, and/or (d) is in any situation Under, change (this does not include the switching in situation (a)) for the segmentation exceeding several carrying.

Such as, Ω can be defined to indicate that the search volume of a S by eNB 705-a, with based on situation A () to (d) assesses F (S), and Sc can be defined as situation (a) to (d) and The point found.If Ω is empty, then eNB 705-a can select this point as the optimum point of F (S). Otherwise, if Ω is not empty, then eNB 705-a can find the optimum of F (S) with optimizing application process Point is so that overall system maximization of utility.

Such as, eNB 705-a can pass through defining point S1 (wherein, S1=Sc) and carrys out optimizing application mistake Journey.Subsequently, eNB 705-a may determine that the most the biggest to the quantity of the point that F (S) is assessed Maximum quantity (such as, owing to calculating requirement) in the assessment allowed.If the most F (S) is entered The maximum quantity that the quantity of the point assessed of having gone is allowed more than assessment, then eNB 705-a stops optimizing Journey.Otherwise, eNB 705-a can be based at least partially on from WWAN link 746 and WLAN Each carrying is ranked up by the amount of the contemplated system effectiveness splitting carrying between link 751 and obtain. Such as, k0 can be defined as wherein contemplating the carrying of optimal system utility gain by eNB.One In individual aspect, the sequence for system utility gain can be based on following formula: (for current Effective data rate difference between WWAN link 746 and WLAN link 751 for Sc (delta)) * (portfolio at next interval)/(handling capacity of reception).Subsequently, eNB 705-a A S2 can be defined as when all carrying k0 are contemplated time institute on the link of gain wherein by service The point determined.Subsequently, eNB 705-a may determine that the optimal value (referred to as α ') of α, wherein 0≤α≤1, And wherein G (α)=F (α * S1+ (1-α) * S2) is maximized.If G (α ') > F (S1)+Delta1, Then eNB 705-a can be with defining point S1, so that S1=S2.Subsequently, eNB 705-a can return really Whether the quantity to the point that F (S) is assessed the most is more than the maximum quantity of allowed assessment Step, and continue executing with optimization process as discussed previously.

If F (S1)/F (Sc) > Delta2, then 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 is the carrying (that is, Snew_k is not equal to Sc_k) differed, then eNB 705-a Can by these change application in and/or pass to UE 715.

In an aspect, can be by eNB for dosis refracta determined by each carrying by eNB 705-a 705-a uses Token Bucket Policing to realize.In an aspect, may determine that will be via for eNB 705-a Oneth RAT (such as, WWAN link 746) is to the percentage ratio (example of UE 715 server data stream As, x%) and to service to UE 715 via the 2nd RAT (such as, WLAN link 751) The residue percentage ratio (such as, 100%-x%) of this data stream.In in this regard, arrive for each The data cell (such as, bit or byte) come, eNB 705-a can collect the x/100 in token bucket Data cell is used for a RAT, and collects 1-x/100 data cell for the 2nd RAT.When size is When the packet of s bit is scheduled on RAT, remove this amount from corresponding token bucket.At each RAT On packet scheduling follow the MAC algorithm of their own, except token bucket rank must always non-negative every time Value.

Fig. 8 is the various aspects according to present disclosure, it is shown that the stream of a kind of method of radio communication Journey Figure 80 0.The method can be come by the eNB of the eNB 705-a in such as Fig. 7 A and Fig. 7 B etc Perform.Should be appreciated that in the flow chart of Fig. 8 and represent optional step by the step of dotted line instruction.

In step 802, eNB determines and to use a RAT to come to UE (example via the first communication link Such as, the UE 715 in Fig. 7 A and Fig. 7 B) the first dosis refracta of data stream of servicing.Such as, this number Can be the data including the one or more packets will UE is transmitted in DL transmission according to stream Service, and a RAT can be WWAN, such as LTE.

In step 804, eNB determines that the 2nd RAT will be used to come to UE via the second communication link takes Second dosis refracta of the data stream of business.Such as, the 2nd RAT can be WLAN, such as WiFi^TM。 In an aspect, eNB is based on configuration or majorized function (shown in such as formula 1 and formula 2 Majorized function) determine the first dosis refracta of data stream or the second dosis refracta of data stream.A side In face, eNB be based at least partially on from UE report to determine data stream the first dosis refracta or Second dosis refracta of data stream.In an aspect, eNB within a period of time dynamically or at least It is based in part on the report received from UE to determine the first dosis refracta of data stream or data stream Second dosis refracta.In an aspect, when the second communication link channel quality less than threshold value time or work as When minimum modulation and encoding scheme (MCS) cannot be selected for the second communication link, data stream The determination result of the first dosis refracta be 1, and the determination result of the second dosis refracta of data stream is 0.

In step 806, eNB is based on being kept for the first communication link and the token of the second communication link Bucket mechanism or based on scoring probability, realize determined by first dosis refracta and second of this data stream Dosis refracta.

In step 808, eNB uses a RAT or via the second communication chain via the first communication link Road uses the 2nd RAT to receive the control information for data stream from UE.

In step 810, eNB uses the first communication link to carry out the first dosis refracta to UE server data stream.

In step 812, eNB uses a RAT or via the second communication chain via the first communication link Road uses the 2nd RAT from WLAN AP (such as, WLAN AP 705-b) and/or from UE reception Feedback information for data stream.

In step 814, eNB determines that whether channel quality is less than threshold value.If channel quality is less than threshold value, Then in step 816, the first dosis refracta and/or the second dosis refracta determined by eNB renewal.Otherwise, exist Step 818, the first dosis refracta of data stream and the determination result of the second dosis refracta are carried out by eNB termly Assessment.In an aspect, to the determination result of the first dosis refracta of data stream and the second dosis refracta Assessment performs in the following manner: when forbidding that intervalometer is operationally, it is to avoid application is determined The first dosis refracta of data stream and the second dosis refracta, and/or when the mark for data stream distributes change Quantity within a certain period of time beyond threshold value time, it is to avoid the first dosis refracta of data stream determined by application With the second dosis refracta.

Fig. 9 is the various aspects according to present disclosure, it is shown that the stream of a kind of method of radio communication Journey Figure 90 0.The method can be come by the eNB of the eNB 705-a in such as Fig. 7 A and Fig. 7 B etc Perform.Should be appreciated that in the flow chart of Fig. 9 and represent optional step by the step of dotted line instruction.

In step 902, eNB determines will be by UE (such as, the UE 715 in Fig. 7 A and Fig. 7 B) The first dosis refracta via the data stream that the first communication link use the oneth RAT sends.Such as, One data stream can be to include the one or more packets will be transmitted to eNB in UL transmission Data, and a RAT can be WWAN, such as LTE.

In step 904, eNB determines and to be used the 2nd RAT to send out by UE via the second communication link Second dosis refracta of the data stream sent.Such as, the 2nd RAT can be WLAN, such as WiFi^TM。 In an aspect, eNB is based on configuration or majorized function (shown in such as formula 1 and formula 2 Majorized function) determine the first dosis refracta of data stream or the second dosis refracta of data stream.A side In face, eNB be based at least partially on from UE report to determine data stream the first dosis refracta or Second dosis refracta of data stream.In an aspect, eNB is within a period of time or at least in part The first dosis refracta of data stream or data stream is dynamically determined from the report of UE based on receiving Second dosis refracta.In an aspect, when the second communication link channel quality less than threshold value time or work as When minimum MCS cannot be selected for the second communication link, the determination of the first dosis refracta of data stream Result is 1, and the determination result of the second dosis refracta of data stream is 0.

In step 906, eNB sends message to UE, to send data stream via the first communication link First dosis refracta and the second dosis refracta via the second communication link transmission data stream.

In step 908, eNB is based on being kept for the first communication link and the token of the second communication link Bucket mechanism or based on scoring probability, realize determined by the first dosis refracta of data stream and second point Quantity.

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

In step 911, eNB uses a RAT or via the second communication chain via the first communication link Road uses the 2nd RAT to come to UE and sends the control information for data stream.

In step 912, eNB determines that whether channel quality is less than threshold value.If channel quality is less than threshold value, Then in step 914, the first dosis refracta and/or the second dosis refracta determined by eNB renewal.Otherwise, exist Step 916, the first dosis refracta of data stream and the determination result of the second dosis refracta are carried out by eNB termly Assessment.In an aspect, to the determination result of the first dosis refracta of data stream and the second dosis refracta Assessment performs in the following manner: when forbidding that intervalometer is operationally, it is to avoid application is determined The first dosis refracta of data stream and the second dosis refracta, and/or when the mark for data stream distributes change Quantity within a certain period of time beyond threshold value time, it is to avoid the first dosis refracta of data stream determined by application With the second dosis refracta.

Figure 10 is the various aspects according to present disclosure, it is shown that the stream of a kind of method of radio communication Journey Figure 100 0.The method can be performed by the eNB of such as eNB 705-a etc.In step 1002, Ω is defined to indicate that the search volume of a S by eNB, to make total system based on one or more situations System utility function F (S) maximizes, and a Sc is defined as one or more situation and finds Point.Such as, these one or more situations can include situation (a) to (d) discussed above.

In step 1004, eNB determines that search volume Ω is for sky.If search volume Ω is empty, then exist Step 1006, eNB selected element Sc is as the optimum point of overall system utility function F (S).Otherwise, as Really search volume Ω is not empty, then in step 1008, eNB passes through defining point S1 (wherein, S1=Sc) Carry out optimizing application process.

In step 1010, eNB determines the most whether be more than the quantity of the point that F (S) is assessed The maximum quantity (such as, owing to calculating requirement) that assessment is allowed.If the most F (S) is carried out The maximum quantity that the quantity of the point of assessment is allowed more than assessment, then in step 1012, eNB stops excellent Change process.Otherwise, in step 1014, eNB is based at least partially on from WWAN link 746 And the amount of the contemplated system effectiveness splitting carrying between WLAN link 751 and obtain to carry each It is ranked up.Such as, k0 can be defined as wherein contemplating optimal system utility gain by eNB Carrying.In an aspect, the sequence for system utility gain can be based on following formula: (right For current Sc, the valid data between WWAN link 746 and WLAN link 751 are fast Rate difference) * (portfolio at next interval)/(handling capacity of reception).

In step 1016, a S2 is defined as contemplating wherein on the link of gain service by eNB Point determined by during all carrying k0.

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

In step 1020, eNB determines whether G (α ') > F (S1)+Delta1 sets up.If G (α ') > F (S1)+Delta1, then in step 1022, eNB defining point S1, so that S1=S2.Subsequently, eNB Returning step 1010, the most to the quantity of the point that F (S) is assessed whether this step 1010 determine The maximum quantity allowed more than assessment.Otherwise, the step 1024 illustrated in fig. 1 ob, eNB is true Fixed the most whether F (S1)/F (Sc) > Delta2.If F (S1)/F (Sc) > Delta2, then in step 1026, eNB For Sn defining point S1.Otherwise, in step 1028, eNB defining point Snew, so that Snew=Sc. In step 1030, it is the carrying (that is, Snew_k is not equal to Sc_k) differed when there is Snew and Sc Time, eNB applies to UE 715 and/or transmits change.

Figure 11 is the various aspects according to present disclosure, it is shown that in exemplary means 1102 not Conceptual data flow Figure 110 0 of data stream between same module/unit/assembly.This device can be eNB.This device includes module 1104, and module 1104 receives WWAN UL via the first communication link (such as, the UE from such as UE 1150 etc receives the 3rd dosis refracta of the second data stream in transmission 1120).Module 1104 can also use a RAT (such as, such as LTE via the first communication link Etc WWAN) or via second communication link use the 2nd RAT (such as, such as WiFi^TM Etc WLAN) from WLAN AP 1152 (such as, WLAN AP 705-b) and/or from UE Receive the feedback information for the first data stream.This device also includes: module 1106, and module 1106 is true Surely first point of next the first data stream to UE service of a RAT is used via the first communication link Quantity 1124, determines and to use second via the second communication link (such as, WLAN link 1126) RAT carrys out the second dosis refracta 1128 of the first data stream to UE service, and determining will be by UE via the 3rd dosis refracta 1120 of the second data stream that one communication link use the oneth RAT sends, determines and wants Use the 4th point of the second data stream that the 2nd RAT sends via the second communication link 1126 by UE Quantity 1122, and determine that whether channel quality is less than threshold value；Module 1108, module 1108 is based on quilt Keep being used for the first communication link and the Token Bucket Policing of the second communication link or based on scoring probability, First dosis refracta of the first data stream determined by realizing and the second dosis refracta；Module 1110, module 1110 channel quality less than threshold value time update determined by the 3rd dosis refracta and the 4th dosis refracta；Module 1112, the first dosis refracta of the first data stream and the determination of the second dosis refracta are tied by module 1112 termly The determination result of fruit and/or the 3rd dosis refracta of the second data stream and the 4th dosis refracta is estimated；Module 1114, module 1114 uses the first communication link to carry out the first dosis refracta to UE first class services data stream； Module 1116, module 1116 uses a RAT to send control information to UE via the first communication link And receive control information from UE, or the 2nd RAT is used to send out to UE via the second communication link Send control information and receive control information from UE；And module 1118, module 1118 is sent out to UE WWAN DL is sent to transmit.In an aspect, module 1118 sends message to UE, with via the One communication link uses a RAT send the 3rd dosis refracta of the second data stream and lead to via second Letter link uses the 2nd RAT to send the 4th dosis refracta of the second data stream.

This device can include extra module, and it performs aforesaid Fig. 8, Fig. 9, Figure 10 A and figure Each step in algorithm steps in the flow chart of 10B.Therefore, aforesaid Fig. 8, Fig. 9, Figure 10 A Can be performed by module with each step in the flow chart of Figure 10 B and this device can include this One or more in a little modules.Module can be the process/algorithm being configured to specially perform to be stated One or more nextport hardware component NextPorts, come real by the processor of process/algorithm being configured to perform to be stated Now, to be realized or a combination thereof by processor in being stored in computer-readable medium.

Figure 12 is the various aspects according to present disclosure, it is shown that use the dress of processing system 1214 Put the diagram 1200 of the hard-wired example of 1102'.Processing system 1214 can use bus architecture Realizing, bus architecture is indicated generally at by bus 1224.Depend on the concrete of processing system 1214 Application and overall design constraints, bus 1224 can include any number of interconnection bus and bridger. Bus 1224 will include that (it uses processor 1204, mould for one or more processor and/or hardware module Block 1104,1106,1108,1110,1112,1114,1116 and 1118 represents) and computer Computer-readable recording medium/memorizer 1206) various be electrically connected to together.Bus 1224 can also connect all Such as other circuit various of timing source, ancillary equipment, voltage regulator and electric power management circuit etc, These circuit are well known in the present art, and therefore will no longer be further described below.

Processing system 1214 is alternatively coupled to transceiver 1210.Transceiver 1210 is coupled to one or many Individual antenna 1220.Transceiver 1210 provides a kind of for being led to other devices various by transmission medium The means of letter.Transceiver 1210 receives signal from one or more antennas 1220, from the letter received Extract information in number, and the information extracted is supplied to processing system 1214 (specifically, connects Receive module 1104).Additionally, transceiver 1210 is from processing system 1214 (specifically, sending module 1118) receive information, and based on the information received, generation will be to one or more antennas 1220 The signal of application.Processing system 1214 includes the place being coupled to computer-readable medium/memorizer 1206 Reason device 1204.General procedure is responsible for by processor 1204, and this includes performing at computer-readable medium/deposit The software of storage on reservoir 1206.When this software is performed by processor 1204 so that processing system 1214 perform above with respect to the various functions described by any specific device.Computer-readable medium/storage Device 1206 can be also used for storing the data operated when executing software by processor 1204.This process System also includes in module 1104,1106,1108,1110,1112,1114,1116 and 1118 At least one.These modules can be in processor 1204 run, resident/to be stored in computer-readable Software module in medium/memorizer 1206, it is coupled to one or more hardware moulds of processor 1204 Block or its certain combination.Processing system 1214 can be the assembly of eNB 610 and can include In memorizer 670 and/or TX processor 616, RX processor 670 and controller/processor 675 At least one.

In one configures, device for wireless communications 1102/1102' includes: being used for determining will be via First communication link uses the list of the first dosis refracta of next the first data stream to UE service of a RAT Unit；The 2nd RAT is used to carry out described first to UE service via the second communication link for determining The unit of the second dosis refracta of data stream；For using the first communication link to come to UE first class services data The unit of the first dosis refracta of stream；For using a RAT or via second via the first communication link Communication link uses the 2nd RAT from WLAN AP (such as, WLAN AP 705-b) and/or from UE Receive the unit of the feedback information for the first data stream；For using first via the first communication link RAT to UE send control information and without using the 2nd RAT, or via the second communication link Use the 2nd RAT to UE transmission control information without using the unit of a RAT；For really Surely the 3rd point of the second data stream sent via the first communication link use the oneth RAT by UE The unit of quantity；The 2nd RAT is used to send by UE via the second communication link for determining The unit of the 4th dosis refracta of the second data stream；For receiving the second number via the first communication link from UE Unit according to the 3rd dosis refracta of stream；For determining whether channel quality is less than the unit of threshold value；For When channel quality is less than threshold value, the 3rd dosis refracta and the unit of the 4th dosis refracta determined by renewal； For termly to the first dosis refracta of the first data stream and the determination result of the second dosis refracta and/or The unit that 3rd dosis refracta of two data streams and the determination result of the 4th dosis refracta are estimated；For to UE sends message, to use a RAT to send the of the second data stream via the first communication link Three dosis refractas and use the 2nd RAT to send the 4th point of the second data stream via the second communication link The unit of quantity；And for based on being kept for the first communication link and the order of the second communication link Board bucket mechanism or based on scoring probability, realize determined by the first data stream the first dosis refracta and Second dosis refracta and determined by the 3rd dosis refracta of the second data stream and the unit of the 4th dosis refracta. Foregoing units can be one or more in the aforementioned modules of device 1102 and/or be configured to perform The processing system 1214 of the device 1102' of the function cited by foregoing units.As it has been described above, processing system 1214 can include TX processor 616, RX processor 670 and controller/processor 675.Therefore, In one configures, foregoing units can be configured as performing the TX of the function cited by foregoing units Processor 616, RX processor 670 and controller/processor 675.

The particular order or the level that it being understood that step in disclosed process/flow chart are to example The explanation of property method.It being understood that based on design preference, can rearrange in process/flow chart The particular order of step or level.Furthermore, it is possible to some steps are combined or omit some steps. Appended claim to a method presents the key element of various step with example sequence, and this is not intended to And be limited to presented particular order or level.

Above description is provided so that any those skilled in the art can put into practice described herein each Aspect.To those skilled in the art, the various amendments in terms of these be will be apparent from, And general principles defined herein can be applied to other side.Therefore, claim is not It is intended to be limited to aspect shown herein, and is to fit to consistent with claim literal language Full breadth, wherein, quotes element in the singular and is not intended as representing that " one and only one " (removes The so statement of non-specifically ground), but represent " one or more ".Use " exemplary " word herein Mean " serving as example, example or explanation ".Described herein is any aspect of " exemplary " Shall not necessarily be understood as being or tool advantage more preferred than other side.Unless stated the most especially, no Then term " some " refers to one or more.Such as " at least one in A, B or C ", " A, At least one in B and C " and the combination of " A, B, C or its combination in any " etc include The combination in any of A, B and/or C, and multiple A, multiple B or multiple C can be included.Tool For body, such as " at least one in A, B or C ", " at least one in A, B and C " and The combination of " A, B, C or its combination in any " etc, can be only A, only B, only C, A and B, A and C, B and C or A and B and C, this type of combination of any of which can be wrapped Containing a member in A, B or C or multiple member.Run through each side described by present disclosure The all structural and functional equivalent item of the key element in face is public to those skilled in the art That know or will be known, by quote be expressly incorporated herein in and be intended to by claim Contained.Additionally, do not have any disclosure to be intended to offer to the public herein, the most such public affairs Open whether content is explicitly recited in claims.Any claim elements is not considered as Functional unit, unless use phrase " be used for ... unit " be clearly set forth this key element.

Claims (30)

1. a method for radio communication, including:

Determine and to use the first wireless access technology (RAT) to come to subscriber equipment via the first communication link (UE) the first dosis refracta of the first data stream serviced；

Determine to use the 2nd RAT to service via the second communication link described first to described UE Second dosis refracta of data stream；And

Use described first communication link to come to described UE and service described the first of described first data stream Dosis refracta.

Method the most according to claim 1, wherein, described first point of described first data stream At least one in described second dosis refracta of quantity or described first data stream is based on configuration or to optimize Function determines.

Method the most according to claim 2, wherein, described majorized function is based in the following At least one:

Data flow to the distribution of communication link,

The channel conditions of each RAT in a described RAT and described 2nd RAT,

The state of affairs of each RAT in a described RAT and described 2nd RAT,

A described RAT and the resource of described 2nd RAT,

Described first communication link and the channel loading of described second communication link, or

The difference between data rate and delay on described first communication link and described second communication link Different.

Method the most according to claim 1, also includes:

A described RAT is used to send for described the to described UE via described first communication link The control information of one data stream and receive the described control for described first data stream from described UE Information, or

Described 2nd RAT is used to send for described the to described UE via described second communication link The described control information of one data stream and receiving for described in described first data stream from described UE Control information.

Method the most according to claim 4, wherein, described control information includes in the following At least one: each logical for configure in described first communication link and described second communication link Wireless heterogeneous networks (RRC) message of fractional transmission on letter link, wireless spread-spectrum technology (RLC) Message and PDCP (PDCP) status message.

Method the most according to claim 1, also includes:

A described RAT is used to receive for described the from described UE via described first communication link The feedback information of one data stream,

Described 2nd RAT is used to receive for described the from described UE via described second communication link The described feedback information of one data stream, or

The described feedback information for described first data stream is received according to described 2nd RAT.

Method the most according to claim 6, wherein, described feedback information includes that at least one is anti- Feedback message, at least one feedback message described comprises UE measurement result and the 2nd RAT measurement result.

Method the most according to claim 1, wherein, described first point of described first data stream Quantity and described second dosis refracta are based on the optimization to system utility, the described optimization energy to system utility Enough use equitable proportions between carrying.

Method the most according to claim 1, also includes:

Determine and to be used a described RAT to send by described UE via described first communication link 3rd dosis refracta of the second data stream；

Determine and to be used described 2nd RAT to send by described UE via described second communication link 4th dosis refracta of described second data stream；And

Receive described 3rd point of described second data stream from described UE via described first communication link Quantity.

Method the most according to claim 9, wherein, described first data stream packets includes descending chain Road business and described second data stream packets include uplink service.

11. methods according to claim 9, also include:

Determine that whether channel quality is less than threshold value；And

When described channel quality is less than described threshold value, the first dosis refracta determined by renewal, second point Quantity, the 3rd dosis refracta and the 4th dosis refracta.

12. methods according to claim 1, also include termly to described first data stream The determination result of described first dosis refracta and described second dosis refracta is estimated.

13. methods according to claim 9, also include termly to described second data stream The determination result of described 3rd dosis refracta and described 4th dosis refracta is estimated.

14. methods according to claim 12, wherein, described to described first data stream One dosis refracta and described second dosis refracta and described 3rd dosis refracta of described second data stream and described The determination result of the 4th dosis refracta is estimated including at least one in the following operation:

For the carrying of service on described first communication link and described both second communication links, right Effective data rate and the difference of delay between a described RAT and described 2nd RAT carry out excellent Change,

When forbidding that intervalometer is operationally, it is to avoid determined by application first point of described first data stream Quantity and the second dosis refracta or determined by the 3rd dosis refracta of described second data stream and the 4th mark Amount, or

When the mark for data stream distributes the quantity of change within a certain period of time beyond threshold value, it is to avoid First dosis refracta of described first data stream determined by application and the second dosis refracta and avoid applying institute 3rd dosis refracta of the described second data stream determined and the 4th dosis refracta.

15. methods according to claim 9, also include to described UE transmission message, wherein, Described UE is configured to use a described RAT via described first communication link by described message Send described 3rd dosis refracta of described second data stream and use via described second communication link Described 2nd RAT sends described 4th dosis refracta of described second data stream.

16. methods according to claim 1, also include: based on being kept for described first Communication link and the Token Bucket Policing of described second communication link or based on scoring probability, realize institute First dosis refracta of the described first data stream determined and the second dosis refracta and determined by described second 3rd dosis refracta of data stream and the 4th dosis refracta.

17. methods according to claim 1, wherein it is determined that described first data stream is described First dosis refracta or determine described second dosis refracta of described first data stream be based at least partially on from The report of described UE.

18. methods according to claim 1, wherein it is determined that described first data stream is described First dosis refracta or determine described second dosis refracta of described first data stream be within a period of time dynamically That perform or be based at least partially on to receive and perform from the report of described UE.

19. methods according to claim 1, wherein, when the channel of described second communication link Quality is less than during threshold value or when minimum modulation and encoding scheme (MCS) cannot be selected for described During the second communication link, the determination result of described first dosis refracta of described first data stream is 1, and institute The determination result of described second dosis refracta stating the first data stream is 0.

20. 1 kinds of device for wireless communications, including:

The first wireless access technology (RAT) is used to come to user via the first communication link for determining The unit of the first dosis refracta of the first data stream that equipment (UE) services；

To use described in the 2nd RAT services to described UE via the second communication link for determining The unit of the second dosis refracta of the first data stream；And

Service described in described first data stream for using described first communication link to come to described UE The unit of the first dosis refracta.

21. devices according to claim 20, wherein, described the first of described first data stream At least one in described second dosis refracta of dosis refracta or described first data stream is based on the following Determine:

Configuration, or

Majorized function, described majorized function is based at least one in the following:

Data flow to the distribution of communication link,

The channel conditions of each RAT in a described RAT and described 2nd RAT,

The state of affairs of each RAT in a described RAT and described 2nd RAT,

A described RAT and the resource of described 2nd RAT,

Described first communication link and the channel loading of described second communication link, or

Between data rate and delay on described first communication link and described second communication link Difference.

22. devices according to claim 20, also include:

For using a described RAT to send for institute to described UE via described first communication link State the control information of the first data stream and receive the control for described first data stream from described UE The unit of information, or

For using described 2nd RAT to send for institute to described UE via described second communication link State the described control information of the first data stream and receive for described first data stream from described UE The unit of described control information.

23. devices according to claim 20, also include:

For using a described RAT to receive for institute from described UE via described first communication link State the unit of the feedback information of the first data stream,

For using described 2nd RAT to receive for institute from described UE via described second communication link State the unit of the feedback information of the first data stream, or

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

24. devices according to claim 20, also include:

A described RAT is used to send out by described UE via described first communication link for determining The unit of the 3rd dosis refracta of the second data stream sent；

Described 2nd RAT is used to send out by described UE via described second communication link for determining The unit of the 4th dosis refracta of the described second data stream sent；And

For receiving described the of described second data stream from described UE via described first communication link The unit of three dosis refractas.

25. devices according to claim 24, also include:

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

For when described channel quality is less than described threshold value, the first dosis refracta determined by renewal, the Two dosis refractas, the 3rd dosis refracta and the unit of the 4th dosis refracta.

26. devices according to claim 20, also include for termly to described first data The unit that described first dosis refracta of stream and the determination result of described second dosis refracta are estimated.

27. devices according to claim 24, also include for sending message to described UE Unit, wherein, described UE is configured to use institute via described first communication link by described message State a RAT to send described 3rd dosis refracta of described second data stream and to lead to via described second Letter link uses described 2nd RAT to send described 4th dosis refracta of described second data stream.

28. devices according to claim 20, also include: for described based on being kept for First communication link and the Token Bucket Policing of described second communication link or based on scoring probability, come real First dosis refracta of described first data stream determined by Xian and the second dosis refracta and determined by described 3rd dosis refracta of the second data stream and the unit of the 4th dosis refracta.

29. 1 kinds of device for wireless communications, including:

Memorizer；And

At least one processor, it is coupled to described memorizer and is configured to:

Determine and to use the first wireless access technology (RAT) to come to user via the first communication link First dosis refracta of the first data stream that equipment (UE) services；

Determine and to use described in the 2nd RAT services to described UE via the second communication link Second dosis refracta of the first data stream；And

Use described first communication link to come to described UE to service described in described first data stream First dosis refracta.

30. 1 kinds of computer programs, including:

Computer-readable medium, it includes the code for carrying out following operation:

Determine and to use the first wireless access technology (RAT) to come to user via the first communication link First dosis refracta of the first data stream that equipment (UE) services；

Determine and to use described in the 2nd RAT services to described UE via the second communication link Second dosis refracta of the first data stream；And

Use described first communication link to come to described UE to service described in described first data stream First dosis refracta.