CN109076371A - CQI for flexible transmission pattern switching is reported - Google Patents

Abstract

For the user equipment (UE) reported of the CQI for flexible transmission pattern switching and base station (eNB) device and method.The UE includes: memory；And processing circuit, it is configured as: generating the reporting message for being used for evolution node B (eNB), the reporting message indicates multiple transmission (Tx) wave beams as preferred Tx wave beam.In response to channel state information reference signals (CSI-RS), the processing circuit determines the channel state information (CSI) of at least two preferred Tx wave beams, CSI-RS is wave beam forming based on multiple preferred Tx wave beams, and CSI includes the transmission beam index of each preferred Tx wave beam.Identified CSI is reported to eNB, wherein CSI is configured to be based at least partially on the transmission beam index of each preferred Tx wave beam by UE to indicate preferred transmission mode.

Description

CQI for flexible transmission pattern switching is reported

Technical field

Embodiment belongs to wireless communication.Some embodiments be related to include 3GPP (third generation cooperative partner program) network, The wireless network of 3GPP LTE (long term evolution) network, 3GPP LTE-A (LTE is advanced) network and 5G network, but the model of embodiment It encloses without being limited thereto.Some embodiments are related to deriving and reporting for the channel quality indicator (CQI) of flexible transmission pattern switching.

Background technique

As the different types of equipment communicated with the various network equipments increases, the utilization rate of 3GPP LTE system is Through increasing.The nearest several years, cellular communication is from low data rate voice and text message transmission application development to huge The high data rate applications of useful application, such as fine definition (HD) audio and video Streaming Media, full feature Internet connectivity, institute There are these all to make a significant impact on the daily life of the public.5th generation (5G) wireless system arrives, and is expected and makes Bigger speed, connectivity and availability is obtained to be possibly realized.

One field of the exploitation about 5G system is to promote communication bandwidth, for than currently available higher data Rate.However, communication path used in high band communication is intended to propagate in a manner of more sighting distance, and may be easier By path loss due to barrier (for example, physical relief, building and other structures and vehicle).It is chosen to solve these War, it has been suggested that utilize wave beam forming and multiple-input, multiple-output (MIMO) technology.Further, since user equipment (UE) is moved with using Dynamic and/or rotation, therefore ambient enviroment changes, and can be used in and the quantity of the cluster of channels of the communication of evolution node B (eNB) And situation also changes.

Need a kind of practical solution for flexible transmission pattern switching.

Detailed description of the invention

In the attached drawing being not drawn necessarily to scale, like numerals can describe similar assembly in different views.Have The like numerals of different letter suffix can indicate the different instances of similar assembly.In the following figure of attached drawing, pass through example Rather than the mode of limitation shows some embodiments.

Fig. 1 is the function diagram of 3GPP network in accordance with some embodiments.

Fig. 2 is the block diagram of user equipment in accordance with some embodiments (UE).

Fig. 3 is the block diagram of evolution node B in accordance with some embodiments (eNB).

Fig. 4 A- Fig. 4 B shows the example of multiple multi-beam transmission scenes in accordance with some embodiments using eNB and UE.

Fig. 5 A is to show the channel state information (CSI) in accordance with some embodiments for flexible transmission pattern switching to derive With the diagram reported.

Fig. 5 B shows the CSI in accordance with some embodiments based on down link control information (DCI) and derives and report.

Fig. 6-Fig. 8 is the flow chart for showing the illustrative functions in accordance with some embodiments for deriving and/or reporting for CQI.

Fig. 9 shows the block diagram of communication equipment in accordance with some embodiments (for example, eNB or UE).

Specific embodiment

The following description and drawings sufficiently show specific embodiment so that those skilled in the art can practice them.Other Embodiment may include structure change, logical changes, electrical change, processing changes and other changes.The part of some embodiments Or feature can be included in or be substituted with the part of other embodiments and feature.The embodiment illustrated in claim is included All available equivalents of these claims.

The following description and drawings sufficiently show specific embodiment so that those skilled in the art can practice them.? Multiple examples are described in the context of 3GPP communication system and its component.It should be understood that unless clearly being limited by corresponding claims System, otherwise the principle of embodiment can be applicable to other kinds of communication system (for example, Wi-Fi or Wi-Max network, bluetooth or its His personal area network, Zigbee or other home domain net, wireless mesh networks etc.) in, without limiting.The benefit of the given disclosure, Those skilled in the art will design suitable deformation to realize the principle of embodiment in other kinds of communication system.Respectively The various embodiment of kind may include architectural difference, logic difference, electrical differences, processing difference and other differences.Some embodiments Part or feature can be included in or substitute with the part of other embodiments and feature.The implementation illustrated in claim Example includes all equivalents for being currently known and occurring later of these claims.

Fig. 1 is the function diagram of 3GPP network in accordance with some embodiments.Network includes being coupled in one by S1 interface 115 The wireless access network (RAN) (for example, as depicted, E-UTRAN or evolved universal terrestrial wireless access network) 101 risen with And core net 120 (for example, being shown as evolution block core (EPC)).It is for convenience and concise, one of core net 120 is only shown Point and RAN 101.

Core net 120 includes mobility management entity (MME) 122, gateway (service GW) 124 and Packet Data Network Network diagram closes (PDN GW) 126.RAN 101 includes evolution node B (eNB) 104 (it may be operative to base station), for setting with user Standby (UE) 102 is communicated.ENB 104 may include macro eNB and low-power (LP) eNB.According to some embodiments, eNB 104 Downlink control messages can be sent to UE 102, to indicate physical uplink control channel (PUCCH) channel resource Distribution.UE 102 can from eNB 104 receive downlink control messages, and can PUCCH channel resource at least ENB 104 is sent by uplink control message in a part.These embodiments will be described in further detail below.

MME 122 is functionally similar with the control plane of legacy services GPRS Support Node (SGSN).MME 122 is managed In terms of mobility in access (for example, gateway selection and tracking zone list management).The termination of GW 124 is serviced towards RAN 101 interface, and data grouping is routed between RAN 101 and core net 120.In addition, it can be for switching between eNB Local mobile anchor point, and can also provide for anchoring ambulant between 3GPP.Other responsibilities may include legal Interception, charging and certain strategy implement.Service GW 124 and MME 122 may be implemented in a physical node, Huo Zheshi Now in separated physical node.PDN GW 126 terminates the SGi interface towards packet data network (PDN).PDN GW 126 Data grouping is routed between EPC 120 and outside PDN, and can be the key for strategy implement and accounting data collection Node.It may be that non-LTE access is provided for ambulant anchor point.External PDN can be any kind of IP network And domain IP multimedia subsystem (IMS).PDN GW 126 and service GW 124 may be implemented in a physical node, or It is implemented in separated physical node.

ENB 104 (macro eNB and micro- eNB) terminates air interface protocol, and can be the first contact for UE 102 Point.In some embodiments, the various logic function for RAN 101, including but not limited to RNC (nothing may be implemented in eNB 104 Gauze network controller function), such as radio bearer management, uplink and the management of downlink dynamic radio resource and data point Group scheduling and mobile management.According to embodiment, UE 102 can be configured as to be communicated according to orthogonal frequency division multiple access (OFDMA) Technology is communicated by multidiameter fading channel with eNB 104.Ofdm signal may include multiple orthogonal sub-carriers.

S1 interface 115 is the interface for separating RAN 101 and EPC 120.It is divided into two parts: S1-U, Business datum is carried between eNB 104 and service GW 124；And S1-MME, the signaling between eNB 104 and MME 122 Interface.X2 interface is the interface between eNB 104.X2 interface includes two parts: X2-C and X2-U.X2-C be eNB 104 it Between control plane interface, and X2-U is the user plane interface between eNB 104.

In the case where cellular network, LP cell, which is typically used in, extends coverage into what outdoor signal did not reached well Room area, or for increasing network capacity in the very intensive region of phone utilization rate (for example, railway station).As herein Used such, term low-power (LP) eNB refers to for realizing (narrower than macrocell) compared with narrowed area (for example, femto Cell, picocell or Microcell) any suitable relative low-power eNB.Femto cell eNB is typically by mobile network Operator is supplied to its residential consumer or enterprise customers.Femto cell is typically the size or smaller of residential gateway, And it is typically connected to the broadband line of user.Once insertion, Femto cell connect to the mobile network of mobile operator, And the additional coverage that range is typically 30 meters to 50 meters is provided for house Femto cell.Therefore, LP eNB can be milli Picocell eNB, because it is coupled by PDN GW 126.Similarly, picocell is typically to cover very little region (example Such as, (office, store, railway station etc.) in building, or more recently say, in aircraft) wireless communication system.Picocell ENB can be usually by its base station controller (BSC) function via X2 link connection to another eNB (for example, macro eNB).Therefore, LP eNB can be realized with picocell eNB, because it is coupled to macro eNB via X2 interface.Picocell eNB or other LPeNB may include some or all of functions of macro eNB.In some cases, this is properly termed as access point base station or enterprise's milli Picocell.

In some embodiments, the downlink that down-chain resource grid can be used for from eNB 104 to UE 102 passes It is defeated, and 104 uplink transmission can use similar technology from UE 102 to eNB.Grid can be referred to as resource grid Or the time frequency grid of running time-frequency resource grid, it is the physical resource in the downlink in each time slot.This T/F is flat Face expression is common practice for ofdm system, this makes radio resource allocation be intuitive.The each column of resource grid and Every row corresponds respectively to an OFDM symbol and an OFDM subcarrier.The duration of resource grid in the time domain corresponds to nothing A time slot in line frame.Minimum time frequency unit in resource grid is known as resource element (RE).Each resource grid includes more A resource block (RB), describes the mapping of particular physical channel to resource element.Each resource block includes the resource element in frequency domain The set of element, and can indicate the minimum share for being currently able to the resource of distribution.If in the presence of what is transmitted using these resource blocks Do different physical down link channels.Two exemplary physical downlink channel are physical down link sharing channel and physics Downlink control channel.

User data and higher level signaling are carried to UE 102 (Fig. 1) by physical down link sharing channel (PDSCH).Object It is related with PDSCH channel about transformat and the information of resource allocation etc. to manage downlink control channel (PDCCH) carrying. It also notifies transformat related with uplink shared channel, resource allocation and hybrid automatic repeat-request to UE 102 (HARQ) information.Typically, it can be executed at eNB 104 based on the channel quality information from the feedback of UE 102 to eNB 104 Downlink scheduling (for example, control channel resource block and shared channel resources block are dispatched to the UE 102 in cell), then UE can be sent by downlink resource assignment information in the control channel (PDCCH) for (being dispatched to) UE 102 102。

PDCCH uses CCE (control channel element) transmitting control information.Before being mapped to resource element, PDCCH is multiple Numerical symbol is organized as four-tuple first, is then arranged using sub-block interleaver, to be used for rate-matched.It uses One or more in these control channel elements (CCE) sends each PDCCH, wherein each CCE corresponds to nine groups and is known as providing Four physical resource elements of source element group (REG).Four QPSK symbols are mapped to each REG.Depending on downlink control The size and channel conditions of information (DCI) processed can be used one or more CCE and send PDCCH.There may be determine in LTE Justice with different number CCE (for example, polymerization grade, L=1,2,4 or four or more different PDCCH lattice 8) Formula.

According to example embodiment, UE 102 can be configured for one between such as eNB 104 and UE 102 Or the channel quality of multiple cluster of channels, it is switched between simple beam and dualbeam transmission.More specifically, and following institute As explanation, UE can be equipped with mutiple antennas panel (for example, 210A-210D), this enables UE to arrive by broader Increase data transfer rate up to angle (AoA) promotion signal quality, or by providing high order transmission via wave beam polymerization.

With the movement and/or rotation of UE and the change of generated ambient enviroment, (example can be transmitted in simple beam Such as, order 1 or 2) and dualbeam transmission (for example, order 2,3 or 4) between the preferred transmission of switching.For example, when the last at least two cluster of channels When being available during the link between eNB and UE, the dualbeam transmission with higher rank can will be preferred, thus in fact Now more High Data Rate.In the example only when one strong cluster of channels is feasible when (for example, under sighting distance (LoS) scene), because Insufficient space can provide single wave beam.Since eNB assesses the communication for wave beam using channel state information (CSI) 160 The situation of cluster of channels, therefore CSI 160 (for example, channel quality indicator or CQI) can be used to indicate preferred pass to eNB from UE Defeated mode.In addition, eNB 104, which can will be indicated, needs the single finger for sending wave beam or multiple CSI 160 for sending wave beam Show that symbol 180 is supplied to UE.In another embodiment, eNB 104 can will be specified for one or more CSI characteristics (for example, CQI the indicator 170 of derivation method) is supplied to UE.For example, deriving indicator 170 may indicate that whether answer when determining CQI When interfering with each other between the transmission wave beam of consideration at least two or whether UE 102 should not consider the case where interfering with each other Lower determining CQI.In this regard, it can be used to offer on CQI and realize flexible transmission pattern switching, wherein preferred transmission mode (example Such as, single or double multi-beam transmission) it can be indicated by UE or by eNB.

As used herein such, term " circuit " may refer to following item or as part of it or including them: Specific integrated circuit (ASIC), electronic circuit execute one or more softwares or the processor of firmware program is (shared, dedicated Or group) or memory (shared, dedicated or group), combinational logic circuit or provide described function other conjunction Suitable hardware component.In some embodiments, circuit may be implemented in one or more softwares or firmware module, or with electricity The associated function in road can be realized by one or more softwares or firmware module.In some embodiments, circuit may include The logic that can at least partly operate within hardware.The hardware or software that any suitable configurations can be used will be described herein Embodiment is embodied as system.

Fig. 2 is the function diagram of user equipment in accordance with some embodiments (UE).UE 200 can be adapted for being used as such as Fig. 1 In discribed UE 102.In some embodiments, UE 200 may include application circuit 202, baseband circuit 204, radio frequency (RF) circuit 206, front-end module (FEM) circuit 208 and mutiple antennas 210A-210D, are at least coupled as shown one It rises.In some embodiments, other circuits or arrangement may include application circuit 202, baseband circuit 204, RF circuit 206 or The one or more elements or component of FEM circuit 208, and in some cases can further include other elements or component.Make For example, " processing circuit " may include one or more elements or component, and some of which or whole may include in application In circuit 202 or baseband circuit 204.As another example, " transceiver circuit " may include one or more elements or component, Some of which may include all in RF circuit 206 or FEM circuit 208.However, these examples not limit, because Processing circuit or transceiver circuit can further include other elements or component in some cases.

Application circuit 202 may include one or more application processor.For example, application circuit 202 may include for example But it is not limited to the circuit of one or more single or multiple core processors.Processor may include general processor and application specific processor Any combination of (for example, graphics processor, application processor etc.).Processor can be coupled in or may include memory/deposit Storage, and can be configured as: the instruction stored in memory/storage is executed, so that various applications or operating system energy Enough operate in system.

Baseband circuit 204 may include the circuit of such as, but not limited to one or more single or multiple core processors.Base band Circuit 204 may include one or more baseband processor or control logic, to handle the reception signal path from RF circuit 206 Baseband signal of the baseband signal and generation received for the transmission signal path of RF circuit 206.Baseband circuit 204 can be with Interface is carried out with application circuit 202, for generating and handling baseband signal and control the operation of RF circuit 206.For example, In some embodiments, baseband circuit 204 may include the second generation (2G) baseband processor 204a, the third generation (3G) baseband processor 204b, forth generation (4G) baseband processor 204c or for it is in other existing generations, exploitation or will future exploitation generation (example Such as, the 5th generation (5G), 6G etc.) other baseband processor 204d.Baseband circuit 204 is (for example, in baseband processor 204a-d It is one or more) it can handle and make it possible via each of RF circuit 206 and the communication of one or more radio nets Kind radio control functions.Radio control functions can include but is not limited to signal modulation/demodulation, coding/decoding, radio Frequency displacement etc..In some embodiments, the modulation/demodulation circuit of baseband circuit 204 may include Fast Fourier Transform (FFT), Precoding or constellation mapping/demapping function.In some embodiments, the coding/decoding circuit of baseband circuit 204 may include Low-density checksum (LDPC) coder/decoder functionalities, optionally include other skills that can be used for supporting legacy protocol Art (for example, block code, convolutional code, turbo code etc.).The embodiment of modulating/demodulating and coder/decoder functionalities is not limited to this A little examples, and in other embodiments may include other suitable functions.

In some embodiments, baseband circuit 204 may include the element of protocol stack, such as evolved universal terrestrial wirelessly connects The element of (EUTRAN) agreement that networks, including such as physics (PHY) element, M AC (MAC) element, Radio Link control Make (RLC) element, Packet Data Convergence Protocol (PDCP) element or wireless heterogeneous networks (RRC) element.In baseband circuit 204 Central Processing Unit (CPU) 204e can be configured as: the element of protocol stack be run, to be used for PHY, MAC, RLC, PDCP or RRC The signaling of layer.In some embodiments, baseband circuit may include one or more audio digital signal processors (DSP) 204f.Audio DSP 204f may include the element for compression/de-compression and echo cancellor, and in other embodiments may be used To include other suitable processing elements.In some embodiments, the component of baseband circuit can be combined suitably in single core In piece, one single chip group, or it is deployed on same circuit board.It in some embodiments, can be for example at system on chip (SOC) On realize some or all of composition components of baseband circuit 204 and application circuit 202 together.

In some embodiments, baseband circuit 204 can provide the communication compatible with one or more radio technologies.Example Such as, in some embodiments, baseband circuit 204 can be supported and evolved universal terrestrial wireless access network (EUTRAN) or other nothings The communication of line Metropolitan Area Network (MAN) (WMAN), WLAN (WLAN), wireless personal area network (WPAN).Baseband circuit 204 is configured as propping up The embodiment for holding the radio communication of more than one wireless protocols is properly termed as multimode baseband circuit.

RF circuit 206 can enable to use the electromagnetic radiation progress and wireless network modulated by non-solid medium Communication.In various embodiments, RF circuit 206 may include switch, filter, amplifier etc., to promote and wireless network Communication.RF circuit 206 may include receiving signal path, may include the RF received for down coversion from FEM circuit 208 Signal and the circuit that baseband signal is supplied to baseband circuit 204.RF circuit 206 can further include sending signal path, It may include that for baseband signal provided by up-conversion baseband circuit 204 and RF output signal is supplied to FEM circuit 208 With the circuit for transmission.

In some embodiments, RF circuit 206 may include receiving signal path and transmission signal path.RF circuit 206 Reception signal path may include mixer 206a, amplifier circuit 206b and filter circuit 206c.RF circuit 206 transmission signal path may include filter circuit 206c and mixer 206a.RF circuit 206 can further include comprehensive Clutch circuit 206d, the frequency used with the mixer 206a for synthesized received signal path and transmission signal path. In some embodiments, the mixer 206a for receiving signal path can be configured as: be based on synthesizer circuit 206d institute The frequency synthesis of offer carrys out the RF signal that down coversion is received from FEM circuit 208.Amplifier circuit 206b can be configured as: Signal after amplifying down coversion, and filter circuit 206c can be low-pass filter (LPF) or bandpass filter (BPF), It is configured as: removing undesired signal from the signal after down coversion, to generate output baseband signal.Exporting baseband signal can To be supplied to baseband circuit 204, with for further processing.In some embodiments, output baseband signal can be zero frequency Baseband signal, but this is not required that.In some embodiments, it may include passive for receiving the mixer 206a of signal path Frequency mixer, but the range of embodiment is without being limited thereto.In some embodiments, the mixer 206a for sending signal path can be with It is configured as: baseband signal being inputted come up-conversion based on frequency synthesis provided by synthesizer circuit 206d, is used for FEM to generate The RF output signal of circuit 208.Baseband signal can be provided by baseband circuit 204, and can be filtered by filter circuit 206c Wave.Filter circuit 206c may include low-pass filter (LPF), but the range of embodiment is without being limited thereto.

In some embodiments, it receives the mixer 206a of signal path and sends the mixer of signal path 206a may include two or more frequency mixers, and can be arranged to quadrature frequency conversion or up-conversion respectively.One In a little embodiments, the mixer 206a for receiving signal path and the mixer 206a for sending signal path may include Two or more frequency mixers, and mirror image can be arranged to and inhibit (for example, Hartley mirror image inhibits).In some realities It applies in example, the mixer 206a for receiving signal path and the mixer 206a for sending signal path can be respectively by cloth It sets for Direct-conversion or Direct conversion.In some embodiments, the mixer 206a and hair of signal path are received Send the mixer 206a of signal path that can be configured for superheterodyne operation.

In some embodiments, output baseband signal and input baseband signal can be analog baseband signal, but embodiment Range it is without being limited thereto.In some alternative embodiments, output baseband signal and input baseband signal can be digital baseband letter Number.In these alternative embodiments, RF circuit 206 may include analog-digital converter (ADC) and digital analog converter (DAC) circuit, And baseband circuit 204 may include digital baseband interface, to be communicated with RF circuit 206.In some bimodulus embodiments, Individual radio IC circuit can be provided, to be used for about each frequency spectrum processing signal, but the range of embodiment is without being limited thereto.

In some embodiments, synthesizer circuit 206d can be decimal N synthesizer or decimal N/N+1 synthesizer, but real The range for applying example is without being limited thereto, because other kinds of frequency synthesizer can be suitably.For example, synthesizer circuit 206d can To be delta-sigma synthesizer, frequency multiplier or the synthesizer including having the phaselocked loop of frequency divider.Synthesizer circuit 206d can be with It is configured as: the output that the mixer 206a based on frequency input and divider control input synthesis RF circuit 206 is used Frequency.In some embodiments, synthesizer circuit 206d can be decimal N/N+1 synthesizer.In some embodiments, frequency is defeated Entering can be provided by voltage controlled oscillator (VCO), but this is not required that.Depending on desired output frequency, divider control input It can be provided by baseband circuit 204 or application processor 202.It in some embodiments, can be signified based on application processor 202 The channel shown determines divider control input (for example, N) from look-up table.

The synthesizer circuit 206d of RF circuit 206 may include divider, delay phase-locked loop (DLL), multiplexer and phase Accumulator.In some embodiments, divider can be bimodulus divider (DMD), and phase accumulator can be digital phase Bit accumulator (DPA).In some embodiments, DMD can be configured as: (for example, be based on carry) by input signal divided by N or N+1, to provide division of decimal ratio.In some example embodiments, DLL may include one group of cascade tunable delay member Part, phase detectors, charge pump and D flip-flop.In these embodiments, delay element can be configured as the VCO period It is decomposed into Nd equal phase groupings, wherein Nd is the quantity of the delay element in delay line.By this method, DLL provides negative Feedback, to assist ensuring to be a VCO period by the total delay of delay line.

In some embodiments, synthesizer circuit 206d can be configured as: carrier frequency is generated as output frequency, and In other embodiments, output frequency can be carrier frequency multiple (for example, twice of carrier frequency, carrier frequency four Times), and be used in combination with quadrature generator and divider circuit, to generate relative to each other in carrier frequency with multiple Multiple signals of out of phase.In some embodiments, output frequency can be LO frequency (fLO).In some embodiments, RF Circuit 206 may include IQ/ polar converter.

FEM circuit 208 may include receiving signal path, may include being configured as to from one in antenna 210A-D A or multiple RF signals received are operated, and are amplified the signal received and are proposed the amplified version of the signal received RF circuit 206 is supplied with circuit for further processing.FEM circuit 208 can further include sending signal path, can wrap It includes and is configured as being used for the signal of transmission for by one or more antenna 210A-D provided by amplification RF circuit 206 The circuit that one or more is sent.

In some embodiments, FEM circuit 208 may include TX/RX switch, to grasp in sending mode and reception pattern It is switched between work.FEM circuit may include receiving signal path and transmission signal path.The reception signal road of FEM circuit Diameter may include low-noise amplifier (LNA), and to amplify the RF signal received, and (for example, to RF circuit 206) offer is put The big RF signal received is as output.The transmission signal path of FEM circuit 208 may include: power amplifier (PA), use In amplification (for example, provided by RF circuit 206) input rf signal；And one or more filters, for generating RF signal, Then to be sent for (for example, being carried out by the one or more in one or more antennas 210).In some embodiments, UE 200 may include add ons, such as memory/storage, display, camera, sensor or input/output (I/O) interface.

Fig. 3 is the function diagram of evolution node B in accordance with some embodiments (eNB).It should be noted that in some embodiments, ENB 300 can be static non-mobile device.ENB 300 may adapt to be used as eNB 104 as depicted in Figure 1.eNB 300 component may include in individual equipment or multiple equipment.ENB 300 may include physical layer (PHY) circuit 302 and receive Hair machine 305, one or both of can make it possible for one or more antenna 301A-B send signal to and received from UE 200, other eNB, other UE or other equipment.As an example, physical layer circuit 302 can execute various coding and decodings Function may include: to form the baseband signal being used for transmission and be decoded to the signal received.For example, physical layer Circuit 302 may include LDPC encoder/decoder function, optionally include the other technologies that can be used for supporting legacy protocol (for example, block code, convolutional code, turbo code etc.).The embodiment of modulating/demodulating and coder/decoder functionalities is not limited to these Example, and in other embodiments may include other suitable functions.As another example, transceiver 305 can execute It is various to send and receive function (for example, frequency conversion of the signal between base band range and radio frequency (RF) range).Therefore, physical layer electricity Road 302 and transceiver 305 can be separated component, or can be a part of combined type component.Furthermore, it is possible to by can With include one in physical layer circuit 302, transceiver 305 and other assemblies or layer, any or all of combination come execute with Signal sends and receives related some described functions.ENB 300 can further include medium access control layer (MAC) electricity Road 304, for controlling the access to wireless medium.ENB 300 can further include processing circuit 306 and memory 308, be arranged To execute operate as described herein.ENB 300 can further include one or more interfaces 310, can allow for With the communication of other assemblies, including the component or other networking components in other eNB 104 (Fig. 1), EPC 120 (Fig. 1).This Outside, interface 310 can allow for the communication with unshowned other assemblies possible in Fig. 1, the group including network-external Part.Interface 310 can be wired or wireless or combinations thereof.

(in UE) antenna 210A-D and (in eNB) 301A-B may include one or more directional aerials or omnidirectional antennas Line, including such as dipole antenna, unipole antenna, paster antenna, loop antenna, microstrip antenna or be suitable for transmit RF signal its The antenna of his type.In some multiple-input, multiple-output (MIMO) embodiment, antenna 210A-D, 301A-B can be efficiently separated, with Utilize space diversity and issuable different channels characteristic.

In some embodiments, UE 200 or eNB 300 can be mobile device, and can be portable wireless communication Equipment is (for example, personal digital assistant (PDA), the on knee or portable computer with wireless communication ability, web plate, nothing Line phone, wireless headset, pager, instant communication equipment, digital camera, access point, television set, wearable is set smart phone Standby (for example, Medical Devices (for example, heart rate monitor, blood pressure monitor etc.)) or other can receive wirelessly or The equipment for sending information).In some embodiments, UE 200 or eNB 300 can be configured as: according to 3GPP standard operation, But the range of embodiment aspect without being limited thereto.Mobile device or other equipment are can be configured as in some embodiments according to packet Include IEEE 802.11 or other agreements or standard operation of other ieee standards.In some embodiments, UE 200, eNB 300 Or other equipment may include keyboard, display, nonvolatile memory port, mutiple antennas, graphics processor, using processing One or more of device, loudspeaker and other mobile device elements.Display can be the LCD screen including touch screen.

Although UE 200 and eNB 300 are shown as having several isolated function element, one in function element or It is multiple to combine and can be by the element (e.g., including the processing element of digital signal processor (DSP)) of software configuration Or the combinations of other hardware elements is realized.For example, some elements may include that one or more microprocessors, DSP, scene can It programs gate array (FPGA), specific integrated circuit (ASIC), RF IC (RFIC) and is used at least execute this paper institute The various hardware of the function of description and the combination of logic circuit.In some embodiments, function element may refer to one or more The one or more processes operated on a processing element.

Embodiment may be implemented in one or a combination set of hardware, firmware and software.Embodiment also can be implemented as calculating The instruction stored in machine readable storage device can be read and executed by least one processor to execute and be retouched herein The operation stated.Computer readable storage devices may include for storing information in the readable form of machine (for example, computer) Any non-transient mechanism.For example, computer readable storage devices may include that read-only memory (ROM), arbitrary access are deposited Reservoir (RAM), magnetic disk storage medium, optical storage media, flash memory device and other storage equipment and medium.Some embodiments can To include one or more processors, and the instruction stored in computer readable storage devices can be configured with.

It should be noted that in some embodiments, device used in UE 200 or eNB 300 may include shown in Fig. 2-Fig. 3 UE 200 or eNB 300 various components.Therefore, the technology described herein for referring to UE 200 (or 102) and operation can To be suitable for the device of UE.In addition, the technology described herein for referring to eNB 300 (or 104) and operation can be adapted for eNB Device.

Fig. 4 A- Fig. 4 B shows the example of multiple multi-beam transmission scenes in accordance with some embodiments using eNB and UE.Although Discribed exemplary scene can show some aspects of techniques disclosed herein in Fig. 4 A- Fig. 4 B, it should be appreciated that embodiment It is not limited to these exemplary scenes.Embodiment is not limited to the quantity or type of component shown in Fig. 4 A- Fig. 4 B, and is also not necessarily limited to figure The quantity or arrangement of wave beam are sent shown in 4A- Fig. 4 B.

There are mutiple antennas (for example, two antennas 410), mode can make in various combinations referring to Fig. 4 A, eNB 104 There are various modification of signal with and for each combination, effectively to generate mutiple antennas port 405 (for example, P1-P4).Institute Show in each embodiment in exemplary frame, each antenna port P1-P4 can be defined for one or more antennas 410.Often A antenna port P1-P4 can correspond to different transmission senses.Using different antennae port, eNB 104 can pass through base Multiple layers are sent in code book or precoding technique based on non-code book.According to some embodiments, each antenna port corresponds to warp The specific CSI-RS signal in beam antenna port sent by respective antenna port.In other embodiments, there may be than Fig. 4 A Shown in the more or fewer antenna ports available at eNB of four antenna ports.

On the side UE, there are multiple receiving antennas 415.As shown in the example of Fig. 4 A, there are two receiving antennas for UE tool.It is multiple The receiving antenna property of can choose wave beam forming is received for generating.It receives wave beam forming and may be advantageously used with and increase the reception phase Hope signal direction receiving antenna gain, and inhibit from neighboring community interference (if certainly along with desired signal Different directions receives interference).

The some aspects of embodiment are related to realizing flexible transmission pattern switching.Each antenna 410 (or 415) can have with One or two associated antenna port 405, to allow up to two layers of the transmission of every antenna.Therefore individual antenna can mention For order be 1 (that is, every antenna use individual antenna port) or order be 2 (every antenna uses two antenna ports) simple beam Transmission.Two antennas can provide transmission rank be 2 (for each of two antennas using a port), 3 or 4 (for Each of two antennas use two ports) dualbeam transmit.As shown in Figure 4 A, two antennas of eNB 104 are utilized With transmission rank 4 (that is, just using all four ports 405), two transmission (Tx) wave beams are used.In one embodiment, eNB 104 can indicate the preference (for example, as referring to as being explained Fig. 5 B) for single or double multi-beam transmission to UE.In the scene In, UE can report back to the CSI (for example, CQI) of multiple Tx wave beams (for example, visible two Tx wave beams in Fig. 4 A).Another In embodiment, UE can indicate the preference for single or double multi-beam transmission (for example, that as explained referring to Fig. 5 A to eNB Sample).

Additionally and in example when (by eNB or UE) selection dualbeam transmission, when determining CQI, UE can be with Using different derivation methods (this interfere with each other is interfered with each other or not considered it is, for example, possible to use the wave beam received Derive CQI).ENB can also indicate that the preference of desired CQI derivation method (for example, such as that following explained herein Sample).

In exemplary scene in figure 4b, eNB 104 can send signal, any or institute on multiple wave beam 420-440 There is wave beam that can be received at UE 102.The quantity of wave beam shown in it should be noted that or transmission angle not limit.Due to wave beam 420-440 can be orientation, therefore the transmission energy from wave beam 420-440 can converge in the direction shown.Therefore, return Because in the relative position of UE 102, UE 102 may not necessarily receive the energy of significant quantity from wave beam 440 in some cases.

UE 102 can receive the energy of significant quantity from wave beam 420 and 430, as shown.As an example, difference can be used Reference signal sends wave beam 405-420, and UE 102 can determine channel state information (CSI) feedback of wave beam 420 and 430 Or other information.In some embodiments, each of wave beam 420-430 is configured as CSI reference signal (CSI-RS). In related embodiment, CSI-RS signal is to find a part of reference signaling (DRS) configuration.DRS configuration can be used for UE 102 notify CSI-RS signal by the physical resource being found (for example, subframe, subcarrier).In related embodiment, also to UE 102 notices will be applied to any scramble sequence of CSI-RS.

In some embodiments, up to 2 MIMO layers can be sent in each wave beam by using different polarization.It can be with The MIMO layer of more than two is sent by using multiple wave beams.In related embodiment, UE is configured as finding available wave beam simultaneously And those wave beams found are reported in the forward direction eNB of MIMO data transmission using suitable reporting message.Based on reporting message, ENB 104 can determination will be used for the suitable beam direction with the MIMO layer of the data communication of UE 102.In each implementation In example, depending on the quantity of eNB 104 and UE 102 MIMO layer supported, may exist up to 2,4,8,16,32 or more A MIMO layer.In given scenario, the quantity for the MIMO layer that can actually be used will depend on the letter received at UE 102 The quality of order and with dispersion angle reach UE 102 reflected beam availability, allow UE 102 to distinguish the wave of separation Entrained data on beam.

In exemplary scene in figure 4b, UE 102 can determine wave beam 420 and 430 angle or other information (for example, CSI feedback, including channel quality indicator (CQI) or other).UE 102 can also be at other angles (for example, shown wave beam 440) information is determined when receiving.Wave beam 440 is defined using dotted line configuration, to indicate that it may be not necessarily by indicated angle Degree is sent, but UE 102 can be used and for example receive the technology of wave beam forming and determine the beam direction of wave beam 440.The situation can Can occur in for example transmitted wave beam from the object reflection near UE 102 and according to its reflection rather than incident angle reaches When UE 102.

In some embodiments, UE 102 can send eNB for one or more channel state informations (CSI) message 104 are used as reporting message.However, embodiment is not limited to dedicated CSI message, because UE 102 can be in control message or can be with Or it can be not exclusively suitable in the other kinds of message of transmitting CSI type information including to shut breath of notifying.

As an example, from the first signal that the first eNB 104 is received may include being based at least partially on the first CSI- First directional beam 420 of RS signal and the second directional beam 430 for being based at least partially on the second CSI-RS signal.UE 102 can determine the order designator (RI) of the first CSI-RS and the RI of the 2nd CSI-RS, and can send in CSI message The two RI.In some embodiments, UE 102 can also determine CQI, precoding matrix indicators (PMI), receiving angle or Other information about one or both of the first signal and the second signal.This information can be together with one or more RI packets It includes in one or more CSI message.In some embodiments, UE 102 executes reference signal using CSI-RS signal and receives function Rate (RSRP) measurement, received signal strength indicator (RSSI) measurement, Reference Signal Received Quality (RSRQ) measurement or they certain Kind combination.

As an example, the first signal received from eNB 104 may include being based at least partially on the first CSI-RS letter Number the first directional beam and be based at least partially on the second directional beam of the second CSI-RS signal.UE 102 can be based on The CSI-RS received determines the first CSI measurement of the first directional beam and the 2nd CSI measurement of the second directional beam.CSI Measurement may include channel quality indicator (CQI), order designator (RI) and precoding matrix indicators (PMI).CQI can be by ENB transmitter is for selecting one of several modulation alphabets and code rate combination.RI can be used for notifying to transmitter for current The quantity of the useful transport layer of mimo channel, and PMI can serve to indicate that at transmitter applied by pre-coding matrix Code book index (quantity depending on transmission antenna).Bit rate used in eNB can be based on CQI.PMI can be cell site meter Vector of the calculate and report to eNB.

In this regard, CQI can be the instruction of UE downlink mobile radio channel quality experienced.CQI allows UE proposes optimized modulated met and code rate to eNB about given radio link quality, so that generated transmission Block Error Rate will be no more than particular value (for example, 10%).In some embodiments, UE can report the channel matter for referring to system bandwidth The broadband CQI value of amount.UE can also report the subband CQI of the every subband for the certain amount of resource block that higher can configure Value.

PMI in CSI can indicate the optimal pre-coding matrix that will be used by eNB for given radio condition. PMI value may refer to code book table.The quantity of resource block represented by network configuration PMI report.In some embodiments, in order to cover Convering system bandwidth can provide multiple PMI reports.It may be closed loop spatial reuse, multiuser MIMO and closed loop 1 precoding MIMO mode of order provides PMI report.

According to example embodiment, UE can by provided in reporting CSI to eNB the mode that is used for transmission instruction (or Preference) come control transmission mode (for example, single or double multi-beam transmission) (as it is following it is herein explain as).Show another In example, transmission mode selection can be controlled by eNB, and eNB can indicate to send wave beam needs for multiple (for example, 2) The preference of CSI information.

Fig. 5 A is to show the channel state information (CSI) in accordance with some embodiments for flexible transmission pattern switching to derive With the diagram reported.Referring to Fig. 5 A, be formed by high band system and exist in eNB and UE shown in CSI derive.In the system In can be used transmission (Tx) and receive (Rx) wave beam forming, to expand MPS process and/or promotion signal quality.Initially Ground periodically sends reference signal (RS) 510a after wave beam forming, so that UE can be obtained and be kept preferably (most It is excellent) Tx wave beam 515a and candidate's Tx wave beam 520a.Acquired optimal T X wave beam 515a and candidate Tx wave beam 520a is sent To eNB.It, can be based on the optimal T x wave beam 515a reported and/or candidate beam when eNB intention transmits data to UE Channel state information reference signals (CSI-RS) 525a of 520a and wave beam forming is sent to UE, to survey for channel quality Amount, allows eNB to determine actual modulated encoding scheme, the quantity of stream and the best Tx wave beam in the current generation.

(for example, due to movement of UE) in some instances, the Radio Link between eNB and UE can change, and Transmission mode can be changed based on such as these conditions and be switched over.For example, when there are multiple strong cluster of channels (for example, at least Two cluster of channels) when, it can support high order transmission (for example, dualbeam transmission mode), and when spatial degrees of freedom deficiency, it enables Low-rank transmission.In order not to the flexible switching between same order (for example, between single mode transmission and dual mode transmission), can be used Following CQI reports technology:

The CSI report for being sent to eNB from UE may include the specific CSI information of Tx wave beam.More specifically, and for two A example Tx wave beam (for example, a preferably/optimal T x wave beam and a candidate Tx wave beam), CSI information may include one The implicitly or explicitly index Tx1 of candidate Tx wave beam；RI1, PMI1 and CQI1 of candidate beam Tx1；Another candidate's Tx wave beam it is hidden Formula explicitly indexes Tx2；And RI2, PMI2, CQI2 of candidate beam Tx2.Beam index can be explicit or implicit wave beam rope Draw.Explicit beam index can be the wave beam number sent from eNB (for example, first in wave beam possible for 48, explicitly 1) beam index will be.Implicit beam index can be numbered with the antenna port for sending wave beam and is associated with.

CSI is reported

According to example embodiment, can report differentiation via flexible CSI/CQI as follows includes dualbeam transmission and simple beam The different transmission mode of transmission:

(1) when beam index Tx2 is different from beam index Tx1, (and/or any of RI, PMI and CQI are in wave beam Between be different) when example in, indicate the preference transmitted for dualbeam from UE to eNB.

(2) in the example when Tx1, RI1, PMI1 and CQI1 are respectively equal to Tx2, RI2, PMI2, CQI2, UE can be to ENB indicates the preference transmitted for simple beam；And

(3) as the alternative to (2), if beam index Tx2 is identical as beam index Tx1, while RI2, PMI2 and CQI2 is set to zero, then UE indicates the preference transmitted for simple beam to eNB.

Any of the above example (1)-(3) can be used to report beam index and CSI information in UE, so that instruction is for unicast The preference of beam transmission or dualbeam transmission, and trigger flexible transmission pattern switching.

Referring again to Fig. 5 A, for example optimal and candidate beam CSI information 530a, 535a can be reported to eNB.Wave beam rope Drawing (and/or CSI of each wave beam) can be different.Based on different values, UE can indicate to transmit dualbeam to eNB Preference.Then two Tx wave beam 550a and 560a can be used and send down link data 540a.

In another example, index Tx2, RI2, PMI2 and CQI2 can be set equal to (even if they can not by UE It is same as) Tx1, RI1, PMI1 and CQI1, thus the preference transmitted for simple beam is indicated to eNB.

In a further example, RI2, PMI2 and CQI2 can be set equal to zero by UE, thus be indicated to eNB for unicast The preference of beam transmission.

Fig. 5 B shows the CSI in accordance with some embodiments based on down link control information (DCI) and derives and report.Another In one embodiment, the selection of transmission mode can be controlled by eNB.For example, can believe in the downlink control that eNB is sent to UE New beam search algorithm (BSA) value 520b is added in breath (DCI) 510b.For example, make a reservation for when BSA value 520b is equal to (and it is right Known to UE) value x when, eNB needs dualbeam channel state information (CSI) report, with the purpose transmitted for dualbeam.Class As, when BSA value 520b is equal to another predetermined (and for known to UE) value y, eNB needs single CSI report, for single The purpose of multi-beam transmission.In particular example in figure 5B, BSA value 520b indicates the preference transmitted for dualbeam, and (divides Not about Tx wave beam 1 and 2) CSI information 530b and 540b be passed back to eNB.

CQI is derived

In the example when being transmitted using dualbeam, the transmission signals of two different beams will be at UE to generating each other Interference.In this regard, whether CQI derivation considers to interfere with each other should be consistent between eNB and UE (and obtained by the two Know).

According to example embodiment, the CQI derivation in the case where not considering to interfere with each other can be set to default configuration (and can be used as default configuration is known for both eNB and UE).

In the case where not interfering with each other, CQI can be derived based on following formula:

P_sig/(P_intf+P_noise),

Wherein, P_sigIt is signal power, P_intfIt is jamming power, P_noiseIt is noise power.Technology is derived using this CQI, ENB can execute flexible central schedule, and the computation complexity of the UE during CQI is derived is simplified.For example, if Whether eNB is equipped with there are two individual RF chain, then can be by deciding whether to send single wave beam to two users or will be double Wave beam is sent to a user to optimize cell capacity.

According to another example embodiment, default configuration can be set to based on considering that the CQI interfered with each other is derived.

If it is considered that interfering with each other, then addition interference will be added, obtain following formula:

P_sig/(P_intf+P_{Mutual, intf}+P_noise), wherein P_mutual,intfIt is that additivity interferes with each other power.By considering phase Mutually interference, eNB and UE can optimize the Tx beam selection between dualbeam.For example, when two non-ideal passback eNB are by groups To realize in example when wave beam polymerization, this mechanism can reduce the expense for information exchange.

In another example, eNB can be by high-level signaling via such as Master Information Block (MIB), system information block (SIB), radio-resource-configuration (RRC) signaling and/or down link control information (DCI) configure 1 bit indicator.The instruction Symbol can be used to consider to interfere with each other or not consider to interfere with each other (for example, based on indicator bit value) to UE notice from eNB In the case where derive CQI.

In another embodiment, eNB can be based on wave beam indicated by the BSA value (for example, 520b in Fig. 5 B) in DCI Searching algorithm come indicate for CQI derivation method preference (such as, if consideration interfere with each other).For example, if BSA requirement is double Wave beam CSI, then UE can calculate CQI based on interfering with each other from dualbeam.

Fig. 6-Fig. 8 is the flow chart for showing the illustrative functions in accordance with some embodiments for deriving and/or reporting for CQI. Example process in each flow chart 600 and 800 can be executed by UE 102 or by the UE equipment with different frameworks.Process Example process in Figure 70 0 can be executed by eNB 104.Particularly, the processing in each flow chart is automatically to carry out The processing that the machine of operation (that is, without user's interaction) is realized.Additionally, it is important to note that the processing in each flow chart It is the embodiment sufficiently characterized that can be realized as described；In addition, processing may be implemented in various embodiments A part is without including other parts.Expected various combinations are described in detail in following additional comments and Examples section, without limiting.Also It should be noted that in various embodiments, particular procedure operation can be executed by with Fig. 6-different order depicted in figure 8.

- Fig. 6 referring to Fig.1, example process 600 can be executed by UE 102.More specifically, in 610, UE102 to evolution Node B (eNB) 104 reports multiple transmission (Tx) wave beams as preferred Tx wave beam (for example, wave beam 515a, 520a).620, UE 102 receiving channel state information reference signal (CSI-RS) 525a, the CSI-RS are wave beam based on multiple preferred Tx wave beams Figuration.630, in response to CSI-RS 525a, UE 102 determines the channel state information of at least two preferred Tx wave beams (CSI) (for example, CSI 535a of the CSI 530a of the first wave beam and the second wave beam), wherein CSI includes each preferably Tx wave beam Transmission beam index.Identified CSI (530a and 535a) is reported to eNB104 in 640, UE 102.The CSI reported Transmission beam index can be configured to be based at least partially on by UE to indicate preferred transmission mode.It is, for example, possible to use following CSI reports technology:

(1) when beam index Tx2 is different from beam index Tx1, (and/or any of RI, PMI and CQI are in wave beam Between be different) when example in, from UE to eNB instruction the preference that dualbeam transmits (in this regard, can be based only upon The difference of transmission beam index determines dualbeam transmission mode)；

(2) in the example when Tx1, RI1, PMI1 and CQI1 are respectively equal to Tx2, RI2, PMI2, CQI2, UE can be to ENB indicates the preference transmitted for simple beam；And (3) as the alternative to (2), if beam index Tx2 and beam index Tx1 is identical, while RI2, PMI2 and CQI2 are set to zero, then UE indicates the preference transmitted for simple beam to eNB.

The transmission of downlink (DL) data is received from eNB according to indicated preferred transmission mode in 650, UE 102 540a。

- Fig. 5 B and Fig. 7 referring to Fig.1, example process 700 can be executed by eNB 104.More specifically, 710, eNB 104 receive multiple transmission (Tx) wave beams as preferred Tx wave beam (for example, wave beam 515a, 520a) from user equipment (UE) 102.? 720, eNB 104 send channel state information reference signals (CSI-RS) 525a to UE 102.CSI-RS 525a is based on multiple It is preferred that Tx wave beam (for example, 515a and/or 520a) and wave beam forming.At least two are received from UE 102 in 730, eNB 104 It is preferred that the channel state information (CSI) (530a, 535a) of Tx wave beam, CSI includes the transmission beam index of each Tx wave beam.? The transmission beam of 740, eNB at least two preferred Tx wave beams being based at least partially in CSI indexes to determine transmission mode.It passes Defeated mode can be such as simple beam transmission mode or dualbeam transmission mode, as above by reference to as being discussed Fig. 6.? 750, eNB 104 initiate downlink (DL) data (540a) transmission according to identified transmission mode.

- Fig. 5 B and Fig. 8 referring to Fig.1, example process 800 can be executed by UE 102.More specifically, 810, UE 102 from 104 receiving channel state information reference signal (CSI-RS) 525a, CSI-RS 525a of eNB be based on multiple preferred Tx Wave beam (such as 515a, 520a) and wave beam forming.Down link control information is received from eNB 104 in 820, UE 102 (DCI)510b.DCI 510b includes the indicator (for example, 520b) of transmission mode.830, in response to CSI-RS and it is based on Transmission mode, UE 102 determine the channel state information (CSI) of one or more preferably Tx wave beams (for example, 530b, 540b).? 840, UE 102 report identified CSI (530a, 540b) to eNB 104.In 850, UE 102 according to transmission mode from eNB 104 receive downlink (DL) data (for example, 540a) transmission, and the transmission mode is based on identified CSI.

Fig. 9 is the block diagram of communication equipment in accordance with some embodiments (for example, eNB or UE).In alternative embodiment, communication Equipment 800 may be operative to stand-alone device, or can connect (for example, networking) to other communication equipments.In networked deployment, Communication equipment 900 can be with server communications device, client communication device or both in server-client network environment Role operate.In this example, communication equipment 900 can be in point-to-point (P2P) (or other distributed) network environment Serve as peer communications devices.Communication equipment 900 can be UE, eNB, PC, tablet PC, STB, PDA, mobile phone, smart phone, Web electric appliance, network router, interchanger or bridge, or can (sequentially or otherwise) execute that indicate will be by this Any communication equipment of the instruction for the movement that communication equipment is taken.Although in addition, only showing single communication equipment, term " communication equipment " should also be regarded as discussed in this article to execute including individually or jointly executing one group (or multiple groups) instruction Any set of communication devices of any one or more of method, such as cloud computing, software service (SaaS), other computer sets Group configuration.

Example as described herein may include logic or multiple components, module or mechanism, or can be on them Operation.Module is to be able to carry out the tangible entity (for example, hardware) of specified operation, and can configure in some way or cloth It sets.In this example, can with specific mode by circuit arrangement (for example, in inside or relative to the external real of such as other circuits Body) it is module.In this example, one or more computer systems (for example, single machine, client or server computer system) or Person's one or more hardware processor all or part of can by firmware or software (for example, instruction, application program part or Application program) it is configured to operate to execute the module of specified operation.In this example, software may reside within readable Jie of communication equipment In matter.In this example, software makes hardware execute specified operation in the bottom hardware execution by module.

Therefore, term " module " is interpreted to embrace tangible entity, be either physically configured to, specific configuration at It (for example, hardwired) or is configured to (for example, being programmed for) (for example, temporarily) temporarily with specific mode operation or executes this paper institute The entity of some or all of any operation stated.The example for considering provisional configuration module is not needed in any one moment reality The each module of exampleization.For example, in the case where module includes the common hardware processor using software configuration, common hardware processing Device can be configured as corresponding disparate modules in different time.Therefore, software can configure hardware processor, such as one Particular module is constituted at a time instance, and disparate modules are constituted at different time example.

Communication equipment (for example, computer system) 900 may include hardware processor 902 (for example, central processing unit (CPU), graphics processing unit (GPU), hardware processor core or any combination of them), main memory 904 and static state deposits Reservoir 906, some or all of which can via mutual link (for example, bus) 908 with communicate with each other.Communication equipment 900 can further include that display unit 910, Alphanumeric Entry Device 912 (for example, keyboard) and user interface (UI) navigation are set Standby 914 (for example, mouses).In this example, display unit 910, input equipment 912 and UI navigation equipment 914 can be touch screen Display.Communication equipment 900 can additionally include storage equipment (for example, driving unit) 916,918 (example of signal generating device Such as, loudspeaker), network interface device 920 and one or more sensors 921 are (for example, global positioning system (GPS) senses Device, compass, accelerometer or other sensors).Communication equipment 900 may include o controller 928, such as serial (for example, logical It is connected with universal serial bus (USB)), parallel or other wired or wireless (for example, infrared (IR), near-field communication (NFC) etc.), To be communicated with one or more peripheral equipments (for example, printer, card reader etc.) or control them.

Storing equipment 916 may include communication equipment readable medium 922, be stored with described herein of embodiment on it What one or more technologies or function or 924 (for example, the softwares) of one or more groups of data structures or instruction utilized for it. Instruction 924 can also completely or at least partially reside in main memory 904, quiet during executing it by communication equipment 900 In state memory 906 or hardware processor 902.In this example, hardware processor 902, main memory 904, static memory 906 Or one of storage equipment 916 or any combination may be constructed communication equipment readable medium.

Although communication equipment readable medium 922 is illustrated as single medium, term " communication equipment readable medium " can be with Including being configured as storing the single medium of one or more instructions 924 or multiple media (for example, centralization or distributed data Library and/or associated caching and server).

Term " communication equipment readable medium " may include that can store, encode or carry to be executed by communication equipment 900 Any medium of any one or more of technology of the execution disclosure of communication equipment 900 is instructed and made, or can store, compile Code or any medium for carrying the data structure for being utilized or being associated by these instructions.Non-limiting communication equipment readable medium Example may include solid-state memory and optics and magnetic medium.The specific example of communication equipment readable medium may include: Nonvolatile memory is (for example, semiconductor memory devices are (for example, electric programmable read-only memory (EPROM), electric erasable Programmable read only memory (EEPROM)) and flash memory device)；Disk (for example, internal hard drive and removable disk)；Magneto-optical disk； Random access memory (RAM)；With CD-ROM and DVD-ROM disk.In some instances, communication equipment readable medium may include Non-transient communication equipment readable medium.In some instances, communication equipment readable medium may include be not instantaneously to spread through sex intercourse The communication equipment readable medium of signal.

A variety of transportation protocols be can use (for example, frame relay, Internet protocol (IP), transmission control protocol (TCP), use User data packet protocol (UDP), hypertext transfer protocol (HTTP) etc.) in any agreement, make via network interface device 920 Instruction 924 is further sent or received on communication network 926 with transmission medium.Example communication network may include local area network (LAN), wide area network (WAN), packet data network (for example, internet), mobile telephone network (for example, cellular network), common Fogey phone (POTS) network and radio data network are (for example, be known asInstitute of Electrical and Electric Engineers (IEEE) 802.11 family of standards, be known as802.16 family of standards of IEEE), it is IEEE 802.15.4 family of standards, long-term Evolution (LTE) family of standards, universal mobile communications network (UMTS) family of standards, equity (P2P) network etc..In this example, network connects Jaws equipment 920 may include for being connected to one or more physical receptacles of communication network 926 (for example, Ethernet jack, same Axis jack or telephone jack) or one or more antennas.In this example, network interface device 920 may include for using At least one of single input and multi-output (SIMO), MIMO or multiple input single output (MISO) technology are more come what is carried out wireless communication A antenna.In some instances, network interface device 920 can be used multiuser MIMO technology and carry out wireless communication.Term " passes Defeated medium " should regard any intangible medium including that can store, encode or carry the instruction executed by communication equipment 900 as, And including number or analog communication signal or other intangible mediums, to promote the communication of the software.

Additional comments and example:

Example 1 is a kind of device of user equipment (UE), the apparatus may include: memory；And processing circuit, coupling To the memory, the processing circuit is configured as: generating the reporting message for being used for evolution node B (eNB), described report disappears Breath indicates multiple transmission (Tx) wave beams as preferred Tx wave beam；In response to channel state information reference signals (CSI-RS), determine The channel state information (CSI) of at least two preferred Tx wave beams, the CSI-RS are wave based on the multiple preferred Tx wave beam Beam figuration, and the CSI includes the transmission beam index of each preferred Tx wave beam；To determined by eNB report CSI, wherein the CSI is configured that the transmission beam for being based at least partially on each preferred Tx wave beam indexes to refer to by the UE Show preferred transmission mode；And handle downlink (DL) the data transmission from the eNB, the downlink transmission It is associated with indicated preferred transmission mode.

In example 2, the theme of example 1 is optionally included: where and the processing circuit includes baseband processing circuitry, and And wherein, the CSI of each of described at least two preferred Tx wave beams further include: order designator (RI)；Pre-coding matrix refers to Show symbol (PMI)；With channel quality indicator (CQI).

In example 3, the theme of any one or more in example 1-2 is optionally included: where the preferred transmission mould Formula include: when the transmission beam index for the preferred Tx wave beam is identical when, be simple beam transmission mode；Or work as institute Transmission beam index is stated when being different for the preferred Tx wave beam, is dualbeam transmission mode.

In example 4, the theme of any one or more in example 1-3 is optionally included: where the multiple preferred Tx Wave beam includes at least the first Tx wave beam and the 2nd Tx wave beam.

In example 5, the theme of example 4 is optionally included: where the CSI includes being associated with the first Tx wave beam The first CSI and with associated 2nd CSI of the 2nd Tx wave beam.

In example 6, the theme of example 5 optionally includes: where the processing circuit is also configured to by by institute State the correspondence transmission beam rope that transmission beam index, RI, PMI and CQI in the 2nd CSI are set equal in the first CSI Draw, RI, PMI and CQI, indicates the preferred transmission mode to the eNB.

In example 7, the theme of any one or more in example 5-6 is optionally included: where the processing circuit is also It is configured as: by the way that RI, PMI and CQI in the 2nd CSI are set equal to zero, indicating the preferred biography to the eNB Defeated mode.

In example 8, the theme of any one or more in example 6-7 is optionally included: where indicated preferred biography Defeated mode is simple beam transmission mode.

In example 9, the theme of any one or more in example 5-8 is optionally included: where the processing circuit is also It is configured as: obtaining RI, PMI and CQI measurement of the first CSI and the 2nd CSI.

In example 10, the theme of example 9 is optionally included: where the processing circuit is also configured to when first When RI, PMI and CQI measurement of CSI is different from RI, PMI and CQI measurement of the 2nd CSI, dualbeam is indicated to the eNB Transmission mode.

In example 11, the theme of any one or more in example 1-10 is optionally included: transceiver；And antenna sets Part is coupled to the transceiver, wherein the transceiver is configured with the antenna module and sends and receives signal.

In example 12, the theme of example 11 is optionally included: where the transceiver is also configured to from the eNB It receives down link control information (DCI), the DCI includes beam search algorithm (BSA) value.

In example 13, the theme of example 12 is optionally included: where the processing circuit be based on the BSA value also by It is configured that for simple beam transmission mode, reports the CSI of the preferred Tx wave beam of only one；Or for dualbeam transmission mode, report The CSI of at least two preferred Tx wave beam.

In example 14, the theme of any one or more in example 9-13 is optionally included: where the processing circuit Be also configured to using from the eNB with the associated instruction of CQI derivation method, using indicated CQI derivation method with Obtain the CQI measurement of the first CSI and the 2nd CSI.

In example 15, the theme of example 14 is optionally included: where the CQI derivation method is based on following one: At the UE and from during the transmission of the dualbeam of the eNB, the first Tx wave beam and the 2nd Tx are not being considered CQI measurement is obtained in the case where interference between wave beam；Or the phase is transmitted at the UE and in the dualbeam from the eNB Between, CQI measurement is obtained in the case where considering the interference between the first Tx wave beam and the 2nd Tx wave beam.

Example 16 is a kind of method for flexible transmission pattern switching, comprising: from user equipment (UE): to enode B (eNB) reports multiple transmission (Tx) wave beams as preferred Tx wave beam；Receiving channel state information reference signal (CSI-RS), institute Stating CSI-RS is wave beam forming based on the multiple preferred Tx wave beam；In response to the CSI-RS, determine that at least two is excellent The channel state information (CSI) of Tx wave beam is selected, the CSI includes the transmission beam index of each preferred Tx wave beam；To the eNB CSI determined by reporting, wherein the CSI is configured that the transmission for being based at least partially on each preferred Tx wave beam by the UE Beam index indicates preferred transmission mode；And according to indicated preferred transmission mode, downlink is received from the eNB (DL) data are transmitted.

In example 17, the theme of example 16 is optionally included: where and the processing circuit includes baseband processing circuitry, And wherein, the CSI of each of described at least two preferred Tx wave beams further include: order designator (RI)；Pre-coding matrix Indicator (PMI)；With channel quality indicator (CQI).

In example 18, the theme of any one or more in example 16-17 is optionally included: where the transmission mould Formula include: when the transmission beam index for the preferred Tx wave beam is identical when, be simple beam transmission mode；Or work as institute Transmission beam index is stated when being different for the preferred Tx wave beam, is dualbeam transmission mode.

In example 19, the theme of any one or more in example 16-18 is optionally included: where the multiple excellent Tx wave beam is selected to include at least the first Tx wave beam and the 2nd Tx wave beam.

In example 20, the theme of example 19 is optionally included: where the CSI includes closing with the first Tx wave beam Connection the first CSI and with associated 2nd CSI of the 2nd Tx wave beam.

In example 21, the theme of example 20 is optionally included: by indexing the transmission beam in the 2nd CSI, RI, PMI and CQI are set equal to correspondence transmission beam index, RI, PMI and CQI in the first CSI, refer to the eNB Show the preferred transmission mode.

In example 22, the theme of any one or more in example 20-21 is optionally included: by by described second RI, PMI and CQI in CSI are set equal to zero, indicate the preferred transmission mode to the eNB.

In example 23, the theme of any one or more in example 21-22 is optionally included: where indicated is excellent Selecting transmission mode is simple beam transmission mode.

In example 24, the theme of any one or more in example 20-23 is optionally included: obtaining the first CSI And RI, PMI and CQI measurement of the 2nd CSI.

In example 25, the theme of example 24 is optionally included: when RI, PMI and CQI measurement and described the of the first CSI When RI, PMI and CQI measurement of two CSI is different, dualbeam transmission mode is indicated to the eNB.

In example 26, the theme of any one or more in example 16-25 is optionally included: under eNB reception Downlink control information (DCI), the DCI include beam search algorithm (BSA) value.

In example 27, the theme of any one or more in example 16-26 is optionally included: under eNB reception Downlink control information (DCI), the DCI include beam search algorithm (BSA) value；And it is based on the BSA value: for unicast Beam transmission mode reports the CSI of the preferred Tx wave beam of only one；Or for dualbeam transmission mode, report that described at least two is excellent Select the CSI of Tx wave beam.

In example 28, the theme of any one or more in example 26-27 is optionally included: being based on the BSA value: right In simple beam transmission mode, the CSI of the preferred Tx wave beam of only one is reported；Or for dualbeam transmission mode, report is described at least The CSI of two preferred Tx wave beams.

In example 29, the theme of any one or more in example 24-28 is optionally included: from the eNB receive with The associated instruction of CQI derivation method；And the indicated CQI derivation method of application is to obtain the first CSI and described the The CQI of two CSI is measured.

In example 30, the theme of example 29 is optionally included: where the CQI derivation method is based on following one: At the UE and from during the transmission of the dualbeam of the eNB, the first Tx wave beam and the 2nd Tx are not being considered CQI measurement is obtained in the case where interference between wave beam；Or the phase is transmitted at the UE and in the dualbeam from the eNB Between, CQI measurement is obtained in the case where considering the interference between the first Tx wave beam and the 2nd Tx wave beam.

Example 31 is at least one machine readable media, when executed by a machine, the machine is made to execute example 16-30 Either described method.

Example 32 is a kind of equipment, including the module for either executing described in example 16-30 method.

Example 33 is a kind of user equipment (UE) equipment, comprising: for reporting multiple transmissions to evolution node B (eNB) (Tx) module of the wave beam as preferred Tx wave beam；It is described for the module of receiving channel state information reference signal (CSI-RS) CSI-RS is wave beam forming based on the multiple preferred Tx wave beam；For determining at least two in response to the CSI-RS It is preferred that the module of the channel state information (CSI) of Tx wave beam, the CSI includes the transmission beam index of each preferred Tx wave beam； For reporting the module of identified CSI to the eNB, wherein the CSI is configured that by the UE and is based at least partially on The transmission beam of each preferably Tx wave beam indexes to indicate preferred transmission mode；And for according to indicated preferred transmission mould Formula receives the module that downlink (DL) data are transmitted from the eNB.

In example 34, the theme of example 33 is optionally included: where each in at least two preferred Tx wave beam A CSI further include: order designator (RI)；Precoding matrix indicators (PMI)；With channel quality indicator (CQI).

In example 35, the theme of any one or more in example 33-34 is optionally included: where the transmission mould Formula include: when the transmission beam index for the preferred Tx wave beam is identical when, be simple beam transmission mode；Or work as institute Transmission beam index is stated when being different for the preferred Tx wave beam, is dualbeam transmission mode.

In example 36, the theme of any one or more in example 33-35 is optionally included: where the multiple excellent Tx wave beam is selected to include at least the first Tx wave beam and the 2nd Tx wave beam.

In example 37, the theme of example 36 is optionally included: where the CSI includes closing with the first Tx wave beam Connection the first CSI and with associated 2nd CSI of the 2nd Tx wave beam.

In example 38, the theme of example 37 is optionally included: for by by the transmission beam rope in the 2nd CSI Draw, RI, PMI and CQI are set equal to correspondence transmission beam index, RI, PMI and CQI in the first CSI, to the eNB Indicate the module of the preferred transmission mode.

In example 39, the theme of any one or more in example 37-38 is optionally included: for by by described the RI, PMI and CQI in two CSI are set equal to zero, and the module of the preferred transmission mode is indicated to the eNB.

In example 40, the theme of any one or more in example 38-39 is optionally included: where indicated is excellent Selecting transmission mode is simple beam transmission mode.

In example 41, the theme of any one or more in example 37-40 is optionally included: for obtaining described first The module of RI, PMI and CQI of CSI and the 2nd CSI measurement.

In example 42, the theme of example 41 is optionally included: for when RI, PMI and CQI measurement of the first CSI and institute State the 2nd CSI RI, PMI and CQI measurement it is different when, to the eNB instruction dualbeam transmission mode module.

In example 43, the theme of any one or more in example 33-42 is optionally included: for connecing from the eNB The module of downlink control information (DCI) is accepted, the DCI includes beam search algorithm (BSA) value.

In example 44, the theme of example 43 is optionally included: for being based on the BSA value, transmitting mould for simple beam Formula reports the module of the CSI of the preferred Tx wave beam of only one；Or for being based on the BSA value, for dualbeam transmission mode, report Accuse the module of the CSI of described at least two preferred Tx wave beams.

In example 45, the theme of any one or more in example 41-44 is optionally included: for connecing from the eNB It receives and the associated instruction of CQI derivation method；And for application indicated CQI derivation method with obtain the first CSI with And the module of the CQI measurement of the 2nd CSI.

In example 46, the theme of example 45 is optionally included: where the CQI derivation method is based on following one: At the UE and from during the transmission of the dualbeam of the eNB, the first Tx wave beam and the 2nd Tx are not being considered CQI measurement is obtained in the case where interference between wave beam；Or the phase is transmitted at the UE and in the dualbeam from the eNB Between, CQI measurement is obtained in the case where considering the interference between the first Tx wave beam and the 2nd Tx wave beam.

Example 47 is a kind of device of evolution node B (eNB), and described device includes processing circuit, the processing circuit quilt It is configured that from user equipment (UE) and receives multiple transmission (Tx) wave beams as preferred Tx wave beam；Based on from user equipment (UE) As preferably send (Tx) wave beam multiple Tx wave beams instruction, to channel state information reference signals (CSI-RS) carry out wave Beam figuration；Using the channel state information (CSI) of at least two preferred Tx wave beams from the UE, it is based on described at least two It is preferred that the transmission beam in the CSI of Tx wave beam indexes to determine transmission mode, wherein the transmission mode is simple beam transmission mould Formula or dualbeam transmission mode；And according to identified transmission mode, initiate the transmission of downlink (DL) data.

In example 48, the theme of example 47 is optionally included: where the processing circuit is also configured to based on institute State order designator (RI), precoding matrix indicators (PMI) and channel quality indicator that CSI obtains each preferably Tx wave beam (CQI)。

In example 49, the theme of example 48 is optionally included: where the processing circuit is also configured to when described It is preferred that RI, PMI and CQI of the first preferred Tx wave beam in Tx wave beam are equal to the second preferred Tx wave beam in the preferred Tx wave beam RI, PMI and CQI when, according to simple beam transmission mode initiate DL data transmission.

In example 50, the theme of any one or more in example 48-49 is optionally included: where the processing electricity Road is also configured to be initiated when RI, PMI and CQI of at least one preferred Tx wave beam are equal to zero according to simple beam transmission mode The transmission of DL data.

In example 51, the theme of any one or more in example 48-50 is optionally included: where the processing electricity Road is also configured to transmission beam index, RI, PMI and/or CQI when the first preferred Tx wave beam in the preferred Tx wave beam When with the corresponding transmission beam index of the second preferred Tx wave beam in the preferred Tx wave beam, RI, PMI and/or CQI difference, root The transmission of DL data is initiated according to dualbeam transmission mode.

In example 52, the theme of any one or more in example 47-51 is optionally included: where the processing electricity Road is also configured to during the dualbeam transmission mode of at least two Tx wave beams, generate indicator to be transferred to the UE, The indicator indicates CQI derivation pattern (DM), wherein the CQI derivation pattern (DM) designates whether that consideration is described extremely during CQI is derived Interfering with each other between few two Tx wave beams.

Example 53 is a kind of method for flexible transmission pattern switching, comprising: by evolution node B (eNB): setting from user Standby (UE) receives multiple transmission (Tx) wave beams as preferred Tx wave beam；Channel state information reference signals are sent to the UE (CSI-RS), the CSI-RS is wave beam forming based on the multiple preferred Tx wave beam；At least two are received from the UE It is preferred that the channel state information (CSI) of Tx wave beam, the CSI includes the transmission beam index of each preferred Tx wave beam；Based on institute The transmission beam stated in the CSI of at least two preferred Tx wave beams indexes to determine transmission mode, wherein the transmission mode is single Multi-beam transmission mode or dualbeam transmission mode；And it according to identified transmission mode, initiates downlink (DL) data and passes It is defeated.

In example 54, the theme of example 53 is optionally included: where obtains each preferably Tx wave beam based on the CSI Order designator (RI), precoding matrix indicators (PMI) and channel quality indicator (CQI).

In example 55, the theme of example 54 is optionally included: where the first preferred Tx in the preferred Tx wave beam Transmission beam index, RI, PMI and/or CQI of wave beam are equal to the transmission wave of the second preferred Tx wave beam in the preferred Tx wave beam When beam index, RI, PMI and/or CQI, the transmission of DL data is initiated according to simple beam transmission mode.

In example 56, the theme of any one or more in example 54-55 is optionally included: as at least one preferred Tx When RI, PMI and CQI of wave beam are equal to zero, the transmission of DL data is initiated according to simple beam transmission mode.

In example 57, the theme of any one or more in example 54-56 is optionally included: when the preferred Tx wave beam In the transmission beam index of the first preferred Tx wave beam, the second preferred Tx wave in RI, PMI and CQI and the preferred Tx wave beam When the transmission beam index of beam, RI, PMI are with CQI difference, the transmission of DL data is initiated according to dualbeam transmission mode.

In example 58, the theme of any one or more in example 53-57 is optionally included: at least two Tx wave beams Dualbeam transmission mode during, send indicator about CQI derivation pattern (DM) to the UE, wherein the CQI derivation pattern (DM) It designates whether to consider interfering with each other between at least two Tx wave beam during CQI is derived.

Example 59 is at least one machine readable media, when executed by a machine, the machine is made to execute example 53-58 Either described method.

Example 60 is a kind of equipment, including the module for executing either method described in example 53-58.

Example 61 is a kind of computer-readable medium, including instruction, and described instruction is when the processing electricity in user equipment (UE) Road makes the UE when executing: from evolution node B (eNB) receiving channel state information reference signal (CSI-RS), the CSI- RS is wave beam forming based on multiple preferred Tx wave beams；Down link control information (DCI) is received from the eNB, the DCI Indicator including transmission mode；In response to the CSI-RS and it is based on the transmission mode, is determined one or more preferred The channel state information (CSI) of Tx wave beam；Identified CSI is reported to the eNB；And according to transmission mode from the eNB The transmission of downlink (DL) data is received, the transmission mode is based on identified CSI.

In example 62, the theme of example 61 is optionally included: where the DCI includes indicating the transmission mode Beam search algorithm (BSA) value.

In example 63, the theme of example 61-62 is optionally included: where the dualbeam transmission mode at least with institute The first Tx wave beam in preferred Tx wave beam and the association of the 2nd Tx wave beam are stated, and wherein, described instruction also makes the UE: being based on institute State CQI derivation method derive the first Tx wave beam the first channel quality indicator (CQI) and the 2nd Tx wave beam 2nd CQI.

In example 64, the theme of example 63 is optionally included: where described instruction also makes the UE: at the UE, The first CQI and described is obtained in the case where not considering the interference between the first Tx wave beam and the 2nd Tx wave beam 2nd CQI；Or at the UE, obtained in the case where considering the interference between the first Tx wave beam and the 2nd Tx wave beam Obtain the first CQI and the 2nd CQI.

The above specific embodiment includes the reference to attached drawing, and attached drawing forms a part of specific embodiment.Attached drawing is logical The mode for crossing diagram shows the specific embodiment that can be practiced.These embodiments are referred to herein as " example ".These show Example may include the element other than those of showing or describing.However, it is also contemplated that be include shown or described element Example.In addition, it is further anticipated that be using about particular example (or in terms of one or more) or about illustrated herein or institute Element (or in terms of one or more) appoints those of shown or described in other examples (or in terms of one or more) stated What combination or displaced example.

Publication, patent and the patent document referred in this document is incorporated herein by reference in their entirety, as passed through reference It is individually incorporated to the same.If this document and the usage those of being incorporated by reference between file are inconsistent, the ginseng being incorporated to Examining the usage in document is the supplement to the usage of this document；For implacable inconsistency, it is with the usage of this document It is quasi-.

In this document, as common in the patent literature, term "a" or "an" is used to include one or more In one, and it is unrelated with any other example or usage of "at least one" or " one or more ".In this document, term "or" is used to refer to the "or" of nonexcludability, so that " A or B " includes " A but be not B ", " B but be not A " and " A and B ", unless separately It is described.In the following claims, term " includes " and " wherein " are used as the common of corresponding term "comprising" and " wherein " English equivalent.In addition, term " includes " and "comprising" are open, that is to say, that including removing in following following claims System, equipment, article or the process of element except those of listing after this term in the claims are still regarded To fall into the scope of the claims.In addition, in following following claims, term " first ", " second " and " third " etc. are only With marking, it is no intended to imply the numerical order of its object.

The above description is intended to be illustrative and not restrictive.For example, above-mentioned example (or in terms of one or more) It can be used with other example combinations.After reading the above description, such as other implementations can be used in those skilled in the art Example.Abstract is to make reader quickly determine essence disclosed in technology.Understanding when submission is that it is not used in explanation or limitation The scope of the claims or meaning.In addition, various features may be grouped together with simplification in the above specific embodiment The disclosure.However, claim may not illustrate each feature disclosed herein, because embodiment can be with the son of the feature Collection is characterized.In addition, embodiment may include feature more less than feature disclosed in particular example.Therefore, following right is wanted It asks and is incorporated in specific embodiment herein, claim itself represents individual embodiment.The range of embodiment disclosed herein The full scope of the equivalent assigned with reference to appended claims and these claims is determined.

Claims (25)

1. a kind of device of user equipment (UE), described device include:

Memory；With

Processing circuit is coupled to the memory, and the processing circuit is configured as:

The reporting message for being used for evolution node B (eNB) is generated, the reporting message indicates multiple transmission (Tx) wave beams as preferred Tx wave beam；

In response to channel state information reference signals (CSI-RS), the channel state information of at least two preferred Tx wave beams is determined (CSI), the CSI-RS is wave beam forming based on the multiple preferred Tx wave beam, and the CSI includes each preferred The transmission beam of Tx wave beam indexes；

To the eNB report determined by CSI, wherein the CSI be configured that by the UE be based at least partially on it is each excellent The transmission beam of Tx wave beam is selected to index to indicate preferred transmission mode；And

Handle downlink (DL) the data transmission from the eNB, the downlink transmission with it is indicated preferred Transmission mode association.

2. device as described in claim 1, wherein the processing circuit includes baseband processing circuitry, and wherein, it is described extremely The CSI of each of few two preferred Tx wave beams further include:

Order designator (RI)；

Precoding matrix indicators (PMI)；With

Channel quality indicator (CQI).

3. device as claimed in claim 1 or 2, wherein the preferred transmission mode includes:

When the transmission beam index for the preferred Tx wave beam is identical when, be simple beam transmission mode；Or

It is dualbeam transmission mode when transmission beam index is different the preferred Tx wave beam.

4. device as claimed in claim 1 or 2, wherein the multiple preferred Tx wave beam includes at least the first Tx wave beam and the Two Tx wave beams.

5. device as claimed in claim 4, wherein the CSI include with associated first CSI of the first Tx wave beam and With associated 2nd CSI of the 2nd Tx wave beam.

6. device as claimed in claim 5, wherein the processing circuit is also configured to

By the way that transmission beam index, RI, PMI and CQI in the 2nd CSI are set equal to pair in the first CSI Transmission beam index, RI, PMI and CQI are answered, indicates the preferred transmission mode to the eNB.

7. device as claimed in claim 5, wherein the processing circuit is also configured to

By the way that RI, PMI and CQI in the 2nd CSI are set equal to zero, the preferred transmission mould is indicated to the eNB Formula.

8. device as claimed in claims 6 or 7, wherein indicated preferred transmission mode is simple beam transmission mode.

9. device as claimed in claim 5, wherein the processing circuit is also configured to

Obtain RI, PMI and CQI measurement of the first CSI and the 2nd CSI.

10. device as claimed in claim 9, wherein the processing circuit is also configured to

When RI, PMI and CQI of the first CSI measurement are different from RI, PMI and CQI measurement of the 2nd CSI, to the eNB Indicate dualbeam transmission mode.

11. device as described in claim 1, further includes:

Transceiver；With

Antenna module is coupled to the transceiver, wherein the transceiver is configured with the antenna module and sends and connect The collection of letters number.

12. device as claimed in claim 11, wherein the transceiver is also configured to

Down link control information (DCI) is received from the eNB, the DCI includes beam search algorithm (BSA) value.

13. device as claimed in claim 12, wherein the processing circuit is based on the BSA value and is also configured to

For simple beam transmission mode, the CSI of the preferred Tx wave beam of only one is reported；Or

For dualbeam transmission mode, the CSI of at least two preferred Tx wave beam is reported.

14. the device as described in claim 9 or 10, wherein the processing circuit is also configured to

Using from the eNB with the associated instruction of CQI derivation method, using indicated CQI derivation method to obtain State the CQI measurement of the first CSI and the 2nd CSI.

15. device as claimed in claim 14, wherein the CQI derivation method is based on following one:

At the UE and from the dualbeam of the eNB transmission during, do not consider the first Tx wave beam with it is described CQI measurement is obtained in the case where interference between 2nd Tx wave beam；Or

At the UE and from during the transmission of the dualbeam of the eNB, the first Tx wave beam and described the are being considered CQI measurement is obtained in the case where interference between two Tx wave beams.

16. a kind of device of evolution node B (eNB), described device includes processing circuit, and the processing circuit is configured as:

Multiple transmission (Tx) wave beams are received as preferred Tx wave beam from user equipment (UE)；

Based on the instruction as the multiple Tx wave beams for preferably sending (Tx) wave beam from user equipment (UE), channel status is believed It ceases reference signal (CSI-RS) and carries out wave beam forming；

It is excellent based on described at least two using the channel state information (CSI) of at least two preferred Tx wave beams from the UE The transmission beam in the CSI of Tx wave beam is selected to index to determine transmission mode, wherein the transmission mode is simple beam transmission mode Or dualbeam transmission mode；And

According to identified transmission mode, the transmission of downlink (DL) data is initiated.

17. device as claimed in claim 16, wherein the processing circuit is also configured to

Order designator (RI), precoding matrix indicators (PMI) and the channel matter of each preferably Tx wave beam are obtained based on the CSI It measures indicator (CQI).

18. device as claimed in claim 17, wherein the processing circuit is also configured to

When RI, PMI and CQI of the first preferred Tx wave beam in the preferred Tx wave beam are equal to second in the preferred Tx wave beam It is preferred that initiating the transmission of DL data according to simple beam transmission mode when RI, PMI and CQI of Tx wave beam.

19. device as claimed in claim 17, wherein the processing circuit is also configured to

When RI, PMI and CQI of at least one preferred Tx wave beam are equal to zero, DL data are initiated according to simple beam transmission mode and are passed It is defeated.

20. device as claimed in claim 17, wherein the processing circuit is also configured to

When the transmission beam index of the first preferred Tx wave beam in the preferred Tx wave beam, RI, PMI and/or CQI and it is described preferably When the correspondence transmission beam index of the second preferred Tx wave beam in Tx wave beam, RI, PMI and/or CQI difference, passed according to dualbeam Defeated mode initiates the transmission of DL data.

21. the device as described in claim 16 or 17, wherein the processing circuit is also configured to

During the dualbeam transmission mode of at least two Tx wave beams, indicator is generated to be transferred to the UE, the instruction Symbol instruction CQI derivation pattern (DM), wherein the CQI derivation pattern (DM) designates whether to consider at least two Tx during CQI is derived Interfering with each other between wave beam.

22. a kind of computer-readable medium, including instruction, described instruction on the processing circuit in user equipment (UE) when executing Make the UE:

From evolution node B (eNB) receiving channel state information reference signal (CSI-RS), the CSI-RS is based on multiple preferred Tx wave beam and wave beam forming；

Down link control information (DCI) is received from the eNB, the DCI includes the indicator of transmission mode；

In response to the CSI-RS and it is based on the transmission mode, determines the channel status letter of one or more preferably Tx wave beams It ceases (CSI)；

Identified CSI is reported to the eNB；And

The transmission of downlink (DL) data is received from the eNB according to transmission mode, the transmission mode is based on determined by CSI。

23. computer-readable medium as claimed in claim 22, wherein the DCI includes the wave for indicating the transmission mode Optimization of Beam Search Algorithm (BSA) value.

24. computer-readable medium as claimed in claim 22, wherein the dualbeam transmission mode at least with it is described preferably The first Tx wave beam and the association of the 2nd Tx wave beam in Tx wave beam, and wherein, described instruction also makes the UE:

The first channel quality indicator (CQI) and described of the first Tx wave beam is derived based on the CQI derivation method 2nd CQI of two Tx wave beams.

25. computer-readable medium as claimed in claim 24, wherein described instruction also makes the UE:

At the UE, institute is obtained in the case where not considering the interference between the first Tx wave beam and the 2nd Tx wave beam State the first CQI and the 2nd CQI；Or

At the UE, in the case where considering the interference between the first Tx wave beam and the 2nd Tx wave beam described in acquisition First CQI and the 2nd CQI.