CN108476123A - Detection reference signal in cellular system - Google Patents

Abstract

Describe a kind of device of user equipment.The device may include at least one processor and logic, and at least part logic is realized in the circuit for being coupled at least one processor.Logic receives configuration broadcast communication by downlink (DL) channel in long term evolution (LTE U) system in unlicensed spectrum from the infrastructure stations of radio access network.Logic identifies the format of uplink (UL) signal in the configuration broadcast communication of the UL channels of LTE U systems.Logic generates UL signals according to the format identified, and UL signals include detection reference signal (SRS) at the first part of the subframe of the UL signals.It is described and claimed other embodiments.

Description

Detection reference signal in cellular system

Related application

The application is required according to 35U.S.C § 119 (e) in 2 months 2016 U.S. Provisional Patent Application No. 62/ submitted for 5th 291,840 priority, by quoting whole be incorporated herein.

Technical field

The embodiments herein relates in general to the communication between the equipment in broadband wireless communication network.

Background technology

Wireless communication system can transmit information using radio frequency (RF) portions of the spectrum of distribution.The RF spectrum of distribution can be with Including authorizing RF spectrum or unauthorized RF spectrum.It authorizes RF spectrum to be supervised by Federal Communications Committee (FCC), and distributes to specific Communication system supplier for the vendor-specific.For example, the high-speed radio that long term evolution (LTE), which is cellular system, to be used is logical The standard of letter.In North America, LTE system can use authorize RF spectrum, such as 700,750,800,850,1900,1700/2100, 2300,2500 and 2600MHz.Unauthorized RF spectrum is also managed by FCC.But unlicensed spectrum is non-exclusive, and it can To be used by any communication system supplier.For example, WLAN (WLAN) system can use the unauthorized of such as 5GHz RF spectrum.

Wireless communication system is just attempting to any available radio frequency (RF) frequency spectrum to meet wireless system to higher data The increasing need of rate.Constantly increase in view of the demand to bandwidth, some communication systems are designed to utilize mandate RF Both frequency spectrum and unauthorized RF spectrum.For example, for LTE using authorize RF spectrum cellular system can be designed as also directed to WLAN uses unauthorized RF spectrum.This can generate potential conflict with wlan system.Therefore, it is necessary to for improving the technology coexisted, To provide reasonable employment between the communication system of contention.

Description of the drawings

Fig. 1 shows different according to the example with the wireless access provided by radio access network of one embodiment Network forming network.

Fig. 2 shows the example cell frameworks for radio access network according to one embodiment.

Fig. 3 A show the first uplink subframe structure according to one embodiment.

Fig. 3 B show the second uplink subframe structure according to one embodiment.

Fig. 3 C show the third uplink subframe structure according to one embodiment.

Fig. 4 shows the exemplary components of the electronic equipment according to one embodiment.

Fig. 5 shows the example of the storage medium according to one embodiment.

Fig. 6 shows the first logic flow according to one embodiment.

Fig. 7 shows the second logic flow according to one embodiment.

Specific implementation mode

Various embodiments may include one or more elements.Element may include any knot for being arranged to execute certain operations Structure.According to the needs of given one group of design parameter or performance constraints, each element can be implemented as hardware, software or its is any Combination.It is real although can embodiment be described using the element of the limited quantity in particular topology by way of example It substituting topology can includes more or fewer elements according to the needs of given realization to apply example.It is worth noting that, to " one Any reference of a embodiment " or " embodiment " means that a particular feature, structure, or characteristic for combining embodiment description includes In at least one embodiment.The phrase " in one embodiment " that occurs everywhere in the description, " in some embodiments " " in various embodiments " it is not necessarily all referring to the same embodiment.

Various embodiments herein relates in general to the communication between the equipment in broadband wireless communication network.Some embodiments In particular to the combination for using mandate RF spectrum, unauthorized RF spectrum or mandate RF spectrum and unauthorized RF spectrum Wireless communication system.Some embodiments may be implemented to refer to for the improved detection of user equipment and/or infrastructure equipment Signal (SRS) operates and/or the technology of listem-before-talk (LBT) operation, to improve the property of the electronic equipment in cordless communication network Energy.

In one embodiment, for example, the device of user equipment (UE) may include at least one processor and logic, until Few a part of logic is realized in the circuit for being coupled at least one processor.Logic can be arranged to pass through unlicensed spectrum On long term evolution (LTE-U) system downlink (DL) channel from the infrastructure stations of radio access network receive configure Broadcast communication.Logic can be arranged in the configuration broadcast communication of the UL channels for LTE-U systems and identify uplink (UL) format of signal.Logic can be arranged to generate UL signals according to the format identified, and UL signals include being used for the UL Detection reference signal (SRS) at the first part of the subframe of signal.In this way, user equipment and/or infrastructure are set The standby UL and DL communication resources that more effectively can be utilized or distribute in LTE-U systems.

Embodiment relates in general to that the wireless communication system for authorizing both RF spectrum and unauthorized RF spectrum can be used.More Body, embodiment is related to third generation partner program (3GPP) long term evolution (LTE) system, such as 3GPP LTE series standards LTE (LTE-U) system in defined unlicensed spectrum comprising but be not limited to：Date is in December, 2016, entitled " technical specification group service and system aspects；Technical specification for the 3GPP system based on UTRAN and technical report (version 12) 3GPP technical specifications (TS) 21.101V12.0.2 (2016-12) "；Date is in December, 2016, entitled " technical specification Group service and system aspects；The 3GPP TS of the technical specification and technical report (version 13) of 3GPP system based on UTRAN " 21.101 V13.0.0(2016-12)；Date is in December, 2016, entitled " technical specification group service and system aspects；Service 22.011 V14.4.0 of 3GPP TS (2016-12) of accessibility (version 14) "；Date is in December, 2016, entitled " skill Art Specification Group Service and system aspects；In terms of service；22.115 V15.0.0 of 3GPP TS of charging and charging (version 15) " (2016-12)；Including their revision, offspring and variant.It should be appreciated, however, that embodiment is readily applicable to utilize mandate Other wireless communication systems of RF spectrum and/or unauthorized RF spectrum.Embodiment context without being limited thereto.

3GPP tissue have attempted to by introduce such as high order modulation, advanced multiple-input and multiple-output (MIMO) antenna technology and The technology of multiple cell coordination technique etc improves the spectrum efficiency of LTE system to increase network capacity.Improve the another of network capacity A kind of method is expansion system bandwidth.But it is very rare compared with the new usable spectrum of low-frequency range.This is 3GPP versions 12 and version The cardinal principle of 13 behinds is intended to realize the operation of LTE-U systems using unauthorized RF spectrum.LTE-U systems and 3GPP editions This 13 next step evolution is referred to as authorizing auxiliary access (LAA) system.It is complete to allow that LAA systems meet the regulation of given area Ball mobile operator deployment.LAA is the important component of 13 standard of 3GPP versions.3GPP versions 14 define another type LAA, referred to as " eLAA ".Another standard is known as MulteFire^TM.MulteFire is a kind of technology based on LTE, with LTE-U Different with LAA, it only runs in an unlicensed spectrum.

In an unlicensed spectrum a significant consideration of operation LTE be to ensure that with such as WLAN (WLAN) it The fair co-existence of the existing system of class.Interested unauthorized RF spectrum is 5GHz frequency bands in LTE-U, with extensive frequency spectrum And global general-use availability.5GHz frequency ranges are managed by the European Telecommunications Standards Institute (ETSI) of the FCC in the U.S. and European Union (EU). Main existing system in 5GHz frequency bands is wlan system, is based particularly on Institute of Electrical and Electric Engineers (IEEE) 802.11 The wlan system of series standard (being referred to as " Wi-Fi ").Since wlan system is widely deployed to run by personal and operator Quotient's grade access service and load shedding, therefore must be given one's full attention to before any LTE-U deployment, to avoid with WLAN user Unacceptable Conflict Level.

In order to promote the fair co-existence with existing system, LTE-U systems to realize listem-before-talk (LBT) function.LBT is this A kind of program of sample：Wherein radio transmitter sensed media first and the only just transmission when sensing medium clear, this is also referred to as For clear channel assessment (CCA) (CCA).CCA determines the presence of channel signal using energy measuring.Some supervision region (such as Europe Alliance and Japan) finally the user of unlicensed spectrum is required to access certain frequency spectrum bands using LBT.It is worth noting that, Wi-Fi There are the LBT versions of oneself, referred to as distributed coordination function (DCF) or enhanced distributed channel to access (EDCA).

LTE-U systems, such as 3GPP version 13LAA systems focus mainly on polymerizeing by carrier wave and realize downlink (DL) it accesses.However, also partly considering the forward direction that uplink (UL) LBT authorizes auxiliary access (eLAA) with 3GPP versions 14 Compatibility.One main design goal of version 14eLAA systems is to specify UL to LAA supplementary cells in unauthorized RF spectrum (SCell) support operated.UL supports to LAA SCell include to detection reference signal (SRS), physical uplink link sharing The definition of channel (PUSCH), physical uplink control channel (PUCCH) and Physical Random Access Channel (PRACH).

One predominant design consideration of LTE-U systems is the use of SRS.SRS is commonly used in channel estimation.Channel is estimated Count it is critically important because its allow for frequency selective resource scheduling.SRS also supports that the UE's not being scheduled recently is various Start-up operation.When being operated in unauthorized RF spectrum, the transmission of SRS is it is necessary that use LBT.

Embodiment is attempted to improve the channel estimation of wireless communication system.More specifically, some embodiments utilize improvement LTE-U The technology that SRS in system is used.For example, improved SRS technologies may include SRS transmission details (including character position and LBT), to the support of narrowband SRS, the support to broadband SRS, SRS symbolic constructions, SRS trigger mechanisms and other improved SRS Technology.Improved SRS technologies can improve the channel estimation in LTE-U systems, this realizes more effective point of RF spectrum resource Match, the reasonable employment between contention system, higher handling capacity, lower delay, effective power use, lower calculatings is all Phase and other significant technique effects and improvement.

Fig. 1 shows the heterogeneous network with the wireless access provided by radio access network (RAN) 101.RAN 101 itself can be embodied as homogeneous network using single wireless technology (such as LTE or LTE-A), or more typically, be embodied as Use the heterogeneous network of the combination of different radio technology (for example, LTE-U).RAN 101 allows wireless telecom equipment (for example, UE) Multiple and different networks 108 is accessed by one or more network switch 106.The network switch 106 is often referred in visitor The interchanger (for example, circuit and/or SoftSwitch) of the expectation target in network 108 is found and/or is connected in the end equipment of family. The network switch 106 can also include gateway interface and any other server component for executing the connection for it is expected rank. Network 108 may include any network, including but not limited to voice and/or data network, such as internet, common exchanging telephone Net (PSTN), the voice/data network based on subscriber and other types of network.

RAN 101 may be implemented to be related to being wirelessly connected in one or more using one or more wireless mobile broadband technologys The various technologies of transmitting data.For example, various embodiments can be related to according to one or more third generation partner programs The transmission of (3GPP) technology and/or standard on one or more be wirelessly connected, such as 3GPP long term evolutions (LTE), 3GPP LTE-Advanced (LTE-A)) and/or 3GPP LTE-U, include their revision, offspring and variant.Various embodiments can be with Additionally or alternatively it is related to the transmission according to following technology and/or standard：One or more global system for mobile communications (GSM)/Enhanced Data rates for GSM Evolution (EDGE), Universal Mobile Telecommunications System (UMTS)/high-speed packet access (HSPA) and/ Or the transmission of transmission, or gsm system (GSM/GPRS) technology and/or standard with General Packet Radio Service (GPRS), Including their revision, offspring and variant.

Wireless communication broadband technology and/or standard can also include but not limited to the Arbitrary Term in following items：Such as Institute of Electrical and Electric Engineers (IEEE) wireless broadband standard of 802.16m and/or 802.16p etc, ternational Mobile Telecommunications Advanced (IMT-ADV), World Interoperability for Microwave Access, WiMax (WiMAX) and/or WiMAX II, 2000 (example of CDMA (CDMA) Such as, CDMA2000 1xRTT, CDMA2000EV-DO, CDMA EV-DV etc.), high-performance wireless Metropolitan Area Network (MAN) (HIPERMAN), wirelessly Broadband (WiBro), high-speed downlink packet access (HSDPA), high speed Orthogonal frequency division are multiplexed (OFDM) grouping access (HSOPA), High Speed Uplink Packet access (HSUPA) technology and/or standard, including its revision, offspring and variant.

Some embodiments can additionally or alternatively be related to the channel radio according to other wireless communication techniques and/or standard Letter.The example embodiment of the other wireless communication techniques and/or standard that can use in various ways can include but is not limited to Other IEEE wireless communication standards, for example, IEEE 802.11, IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11u, IEEE 802.11ac, IEEE 802.11ad, IEEE 802.11af and/or IEEE 802.11ah standards, the efficient Wi-Fi standards developed by efficient WLAN (HEW) seminar, the height of Wi-Fi Alliance (WFA) exploitation Wi-Fi standard wireless communication standards are imitated, such as Wi-Fi, Wi-Fi Direct, Wi-Fi Direct services, wireless gigabit (WiGig), WiGig display extensions (WDE), WiGig bus extensions (WBE), WiGig Serial Extensions (WSE) standard, and/or by The standard of WFA neighbours' sensing network (NAN) task groups exploitation, such as advised in 3GPP technical reports (TR) 23.887,3GPP technologies Machine type communication (MTC) standard embodied in model (TS) 22.368 and/or 3GPP TS 23.682 and/or near-field communication (NFC) standard, such as the standard developed by NFC forums, include revision, offspring and/or the variant of any of above item.Embodiment is not It is limited to these examples.

Except being transmitted except through one or more wireless connection, presently disclosed technology can also relate to by one A or multiple wired communication medias transferring content in one or more wired connections.The example of wired communication media may include Electric wire, cable, metal lead wire, printed circuit board (PCB), backboard, switching fabric, semi-conducting material, twisted-pair feeder, coaxial cable, Optical fiber etc..Embodiment context without being limited thereto.

Referring again to FIGS. 1, RAN 101 includes multiple infrastructure stations 102,103.Due to for different radio standard not Same nomenclature, term " infrastructure stations " usually may refer to provide connection between the wireless UE in RAN 101 and network 108 Any electronic equipment.The example of infrastructure stations can include but is not limited to base station, node, transceiver station, access point, evolution Node B (eNodeB or eNB) etc..Embodiment context without being limited thereto.

Infrastructure stations 102,103 usually provide air interface, for multiple wireless to thirty years of age of such as UE 88,90 Client transmission signal/receive from it signal.Infrastructure stations 102,103 can also each other be led to by wirelessly or non-wirelessly connecting Letter.Infrastructure stations 102,103 can promote various infrastructure operations, such as modulating/demodulating, physical channel coding, differential Collection, error handle, close-loop power control and/or other RAN operations.In one embodiment, infrastructure stations 102 can indicate By various cellular operators (for example, Verizon^TM、AT&T^TMAnd Sprint^TM) installation and safeguard fixed communication apparatus. In one embodiment, infrastructure stations 103 can indicate the fixed communication apparatus by user installation and maintenance, such as mounted on Wireless access point (WAP) in home dwelling or office or router.

In one embodiment, infrastructure stations 102 can be implemented as the eNB for LTE-U systems.Infrastructure stations 102 can be arranged to communicate with UE 88 or UE 90 by communication channel 92, and communication channel 92 utilizes mandate radio frequency (RF) frequency It composes (for example, 2600MHz).In one embodiment, infrastructure stations 103 can be implemented as the access point (AP) of WLAN.Basis Facility station 103 can be arranged to communicate with UE 90 by communication channel 94, and communication channel 94 includes unauthorized RF spectrum (example Such as, 5GHz).Although with reference to LTE-U System describes some embodiments, it is to be understood that, can be directed to other wireless communications is System (such as LAA systems, eLAA systems, for railway integrated wireless network (LTE-R) and be arranged using unauthorized RF frequency Other wireless communication systems of spectrum) realize embodiment.Embodiment is not limited to these examples.

Infrastructure stations 102,103 can be communicably coupled to one or more radio nets there are one can respectively having The transceiver of controller (RNC) 104.The controls of RNC 104 pass through in RAN 101 to one or more networks 108 or RAN 101 The client of another wireless UE accesses.RNC 104 can be operated to control radio resource and access, distribution channel, control Power setting, control switching and/or control macro-diversity, encryption, segmentation/recombination, broadcast signaling, open Loop Power control and other RNC is operated.In some embodiments, at least some location-based services can also be performed (for example, being defended using global location in RNC 104 Star system) for position and/or the cell management of routing auxiliary, it such as controls and/or assists switching, scanning and download decision.

Infrastructure stations 102,103 can be communicated with one or more wireless telecom equipments (such as UE 88,90).One In a embodiment, UE 88 is designed to only communicate with infrastructure stations 102 by communication channel 92.In one embodiment, UE 90 are arranged to communicate with infrastructure stations 102, any one of 103 or both by communication channel 92,94 respectively.It can manage Solution, RAN 101 may include a plurality of types of multiple UE, and embodiment is not limited to these examples.It is retouched in more detail with reference to figure 8 State the example of wireless telecom equipment.

Channel estimation

As previously discussed, SRS is commonly used in channel estimation.Channel estimation is critically important, because it realizes frequency selection Property scheduling of resource.SRS also supports to find recently the not various start-up operations of scheduled UE.It is operated when in unauthorized RF spectrum When, the transmission of SRS is it is necessary that use LBT.As with reference to shown in figure 2, Fig. 3 A- Fig. 3 C and the various embodiments, provide as What is that LTE-U systems realize SRS the and/or LBT signalings of enhancing to execute the example of improved channel estimation.

Fig. 2 shows the exemplary cell frameworks 200 for being suitble to be used together with RAN 101.In one embodiment, cell Framework 200 can use point-to-multipoint (PMP) cellular architecture.It will be understood, however, that other types of framework, example can also be used Such as mesh broadband wireless topology.Embodiment context without being limited thereto.

As shown in Fig. 2, cell framework 200 shows two kinds of wireless area.First kind wireless area includes one group Larger wireless area 204-a (sometimes referred to as " macrocell ").Macrocell provides cellular base station or tower service by higher-wattage Radio covering, such as the eNB in LTE, LTE-A or LTE-U system.Second class wireless area includes one group smaller wireless Cell 206-b (sometimes referred to as " Microcell ").Microcell is provided to be covered by the radio of lower-wattage WLAN access point services, example Such as 802.11 wireless access point.In general, macrocell provides the coverage area more than Microcell.

In this description, for the sake of simplicity, show that single RAN 101 is indicated, wherein wireless area 204-a is listed as C₁To C_N, and wireless area 206-b is listed as cell S_x1To S_x7, wherein macrocell and Microcell is each by using one Or multiple infrastructure stations 102,103 are realized.As non-limiting example, macrocell C₁To C_NIn each can pass through It is realized using frequency spectrum operation infrastructure stations (such as infrastructure stations 102 (for example, LTE eNB)) are authorized, and it is each small Area S_x1To S_x7In each can be (such as basic by using unauthorized (for example, 5GHz) frequency spectrum operation infrastructure stations Facility station 103 (for example, WLAN AP)) it realizes.

In fig. 2, UE 90 is initially shown in the centre position in cell framework 200, in cell C₃、C₅And C₆Between certain Place.Diagram also shows two example route planning (R that UE 90 may be followed_A, R_B).Assuming that UE 90 is along illustrative schemes R_B It advances.Advance when, UE 90 can with for example in various macrocell C₅、C₈And C₁₁In the various infrastructure stations 102 that find hand over Mutually.UE 90 can also with for example in Microcell S_X3、S_X4In the various infrastructure stations 103 that find interact.When UE 90 is given When macrocell and/or Microcell are nearby advanced, when infrastructure stations 102 (for example, eNB) are by the UL for being dynamically dispatched to UE 90 Between window.UE 90 can be transmitted using the UL windows of scheduling to execute UL.

In order to dynamically dispatch the UL windows for UE 90, infrastructure stations 102 (for example, eNB) will be in each DL subframe Control information be sent to UE 90.For example, layer 1 or 2 signaling of layer can be used for sending control information.How control information instruction UE 90 When should be in subsequent subframe to 102 transmission data of infrastructure stations.Control information also indicates which resource block (RB) will be used for UL Transmission.

Other than sending the control information for the UL windows of UE 90, infrastructure stations 102 can also will be with UL resources The associated other types of control information of grid is transmitted to UE 90.UL resource grids include for example for physical uplink link The data and uplink control information of shared channel (PUSCH) transmission, and include that the UL transmitted for PUCCH controls information And various reference signals.Reference signal may include such as demodulated reference signal (DM-RS) and SRS.DM-RS is commonly used in The coherent demodulation of PUSCH and PUCCH data.SRS is commonly used in estimating uplink channel quality for frequency selectivity tune Degree.Infrastructure stations 102 can communicate to transmit control information using configuration broadcast.Configuration broadcast communication example may include (as an example, not a limit)：Main information broadcasts (MIB), system information broadcasts (SIB) or radio resource configuration (RRC) signaling Information element (IE) and other types of signaling.

Fig. 3 A- Fig. 3 C show example UL subframe structure 302,304 and 306.Each UL subframe structure 302,304 and 306 may include multiple symbols.Symbol is the transmission structure (for example, waveform) for indicating integer position.

Fig. 3 A show the example UL subframe structure 302 operated commonly used in LTE-U.As shown in Figure 3A, UL subframe structure 302 include 14 symbols (symbol 0-13).As shown in Figure 3A, information associated with SRS may include in the position of symbol 13, Information associated with physical uplink shared channel (PUSCH) signal may include and the and DM- in the position of symbol 8 The associated information of RS signals may include in the position of symbol 3,10.

UL subframe structure 302 may lead to the problem of LTE-U systems.In order to which UL subframe structure 302 is used for communication channel 94 (for example, unauthorized RF spectrums), need LBT to operate before the transmission of UL subframe 302 in subframe.As previously mentioned, needing LBT operations with the existing system fair co-existence that is operated in unlicensed spectrum.LBT is that UE 90 must sensed media be simultaneously first And the process only just sent in medium clear.However, UE 90 is given the limited amount time (for example, detection time) to hold Row LBT operations.Since SRS is included in the last symbol position (symbol 13) of UL subframe structure 302, without additional Operation in the case of UE 90 possibly can not execute LBT within the limited amount time and operate.For example, it may be desirable to by SRS transmission It is limited to the UE only for the scheduling for sending PUSCH in those symbols in front, or may be needed before SRS transmission attached The symbol punching (puncturing) added is to adapt to send the UE of PUSCH in those symbols not in front.

Fig. 3 B show the example UL subframe structure 304 for LTE-U systems.UL subframe structure 304 is to solve and UL The mode of 302 associated problem of frame structure is arranged.Symbol 0 is punched more specifically, UL subframe structure 304 is LBT, and will SRS from the position of the symbol 13 in UL subframe structure 302 be moved to the punching symbol 0 for LBT in UL subframe structure 304 it The position of symbol 1 afterwards.Similar to UL subframe structure 302, UL subframe structure 304 may include the PUSCH at the position of symbol 8 DM-RS signals at signal and symbol 3,10 positions.

In UL subframe structure 304, the period associated with symbol 0, which is not used in, provides feasible symbol.On the contrary, and symbol 0 associated period was used to execute the LBT operations of unlicensed spectrum.When not needing LBT operations, all 14 symbol (0- 13) it is used as feasible symbol.However when needing LBT to operate, only 13 symbols (1-13) can be used as feasible symbol.Rear In the case of one kind, UE 90 can be punched (puncture) to the symbol 0 of UL subframe structure 304 or is left white (blank).For Punching is executed, UE 90 can encode symbol 0 with specific or predetermined symbol.It is left white to execute, UE 90 can be kept away Exempt from symbol 0 being sent to service infrastructure station.In this case, symbol 0 can be considered as loss symbol by service infrastructure Number.When execution is left white operation, UE 90 in UL subframe structure 304 it is contemplated that be lost symbol, and can be less than to having The subframe of normal 14 symbols (for example, 0-13) executes rate-matched.This can be before the transmission of UL subframe structure 304 or the phase Between execute.Since UL will in advance be dispatched by service infrastructure station, the subframe received is identified as UL subframe structure by it 304。

When UE 90 executes LBT sensing operations and at the UL time windows of scheduling to sense unlicensed spectrum not idle When, then UL subframe structure 304 will be sent not at the UL windows of scheduling.On the contrary, UE 90 will have to wait for service infrastructure Station reschedules another UL windows to execute LBT operations to sense idle unlicensed spectrum.

Period associated with symbol 0 solves the collision problem in unlicensed spectrum for LBT operations.Uploading UE 90 and in the case that contention wlan device starts simultaneously at the transmission subframe symbol 0 of scheduling (for example), being sent while such will stand Conflict and abort process must be carried out by UE 90 and wlan device.Two equipment are required for retrying transmission again later. For LTE-U systems and wlan system, the conflict transmission time in unlicensed spectrum is lost forever, and must be consumed additional System resource is to attempt re-transmission later.For UE 90, the entire UL windows of the scheduling UL in unlicensed spectrum are lost completely.

On the contrary, if some time of wlan device during 0 period of symbol starts to transmit, and UE 90 is in symbol 0 Between LBT operations are carried out during section, then UE 90 will be detected busy (for example, the use) of unlicensed spectrum.Then, UE 90 will prohibit Only itself is transmitted since 1 period of symbol, to avoid conflicting with wlan device.As a result, wlan device will be in the UL of scheduling Unlicensed spectrum is utilized during at least part of window.This causes the use of unlicensed spectrum to increase.This will also enhancing for Cooperation between the accesses of UE 90 and wlan device access of shared unlicensed spectrum is horizontal.For UE 90, cost will be loss It is adjusted again for the use of the shared unlicensed spectrum for the entire UL windows once dispatched, and using additional UE system resources Spend UL.

Period associated with symbol 0 also provides further advantage for LBT operations.By being left white or punching son First symbol of frame, LBT and PUSCH may be embodied in a subframe rather than in multiple subframes.Relative to subframe most For symbol into line blank or the arrangement of punching, this can reduce the scheduling complexity at service infrastructure station afterwards.For example, if to stay White or punching subframe last symbol, then be likely encountered additional complexity, this is because service infrastructure station may It needs to check a subframe in advance to determine whether the symbol needs to be left white or punched.In other words, it is perforated or is left white most The latter symbol will lead to 13 symbols, this can be matched with guaranteed rate；And for the rate carried out for theme subframe Match, UE will have to know in advance the content of subframe so that rate-matched can be before the time that theme subframe starts transmission (for example, a subframe in advance) carries out.

Fig. 3 C show example UL subframe structure 306.As UL subframe structure 302,304, UL subframe structure 306 has 14 symbols (0-13).In addition, UL subframe structure 306 may include the PUSCH signals and symbol 3,10 at 8 position of symbol DM-RS signals at position.However it is different from UL subframe structure 302,304, UL subframe structure 306 further includes pre- at symbol 2 Stay signal.

In 20MHz frame frequencies spectrum, it is understood that there may be only other UEs of the scheduling for PUSCH transmission rather than SRS transmission.This A little UE are sometimes referred to as " non-SRS UE ".After successfully completing LBT, non-SRS UE can send preserved signal.To avoid doing It disturbs, the pre- cyclic shift version (as example) of SRS sequences can be retained so that other UE are used, such as public reserved The purpose of signal.In other words, during SRS symbols, scheduling for PUSCH but be not used in SRS UE can send it is public reserved Signal is the cyclic shift version of a reservation in one example.

UL subframe structure 306 includes preserved signal.In one embodiment, preserved signal can be included in symbol 2 Set predetermined (for example, single symbol) cyclic shift of the SRS at place.However, realization method is not limited to use in the symbol 2 of preserved signal The single symbol cyclic shift of SRS at position.Alternatively, any one position follows such as in symbol 4,5,6,7,9 and 11 Ring displacement can comparably be used as (for example, being chosen as) public reserved symbol.

Broad-band channel is estimated

As previously discussed, SRS is commonly used in channel estimation.Channel estimation is critically important, because it realizes frequency selection Property scheduling of resource.SRS also supports the various start-up operations for the UE not being scheduled recently.When being operated in unauthorized RF spectrum, The transmission of SRS is it is necessary that use LBT.

As with reference to shown in figure 2, Fig. 3 A- Fig. 3 C and the various embodiments provide how for LTE-U systems realize increase Strong SRS and/or LBT signalings are to execute the example of improved channel estimation.These technologies can be used for narrow band channel estimation or wide Band channel estimation.

Estimate about broad-band channel, UE 90 can send information with interleaving mode on entire available bandwidth sometimes.Example Such as, this is likely to occur in certain Multiple Access schemes.For example, being expressed as the relatively new of block interleaving frequency division multiple access (B-IFDMA) Multiple Access scheme is the variant of LTE-U systems.In B-IFDMA systems, the transmission of UE 90 is entirely being grasped by the RB distribution to interweave Make to extend in bandwidth.Since the transmission of UE 90 is occurred over the whole width with interleaving mode, broadband channel quality estimation becomes It obtains more and more important.On the contrary, the narrow band channel estimation on the finite part of completely available bandwidth has limited use.Cause This depends on the specific UL waveforms that given wireless communication system uses, and broad-band channel estimation and broadband SRS may be this system The desired character of (for example, LTE-U systems, B-IFDMA systems and similar system), to ensure to improve UL and DL in this system Resource allocation.

However, it may be necessary to redesign SRS symbolic constructions, be used but regardless of given wireless communication system specific UL waveforms.Current SRS symbolic constructions are based on intertexture FDMA (IFDMA), and wherein SRS signal occupies each alternately son with comb like fashion Carrier wave.With the development of multiple access schemes, such as B-IFDMA systems, the SRS symbolic constructions based on IFDMA may also need Development.If using B-IFDMA as eLAA UL waveforms, this may become especially important.It is, for example, possible to use the SRS of modification Symbolic construction, wherein SRS signal occupy all subcarriers of the RB of distributed intertexture.However the one of this method potentially sets Meter challenge is that the interference volume in each intertexture may be to localize very much, so that accurately broad-band channel estimation is difficult to obtain .For example, an intertexture can largely be used by neighboring community, and another intertexture can be used slightly.In such case Under, entire broadband channel quality possibly can not effectively be indicated based on the broad-band channel to interweave a estimation.Therefore, no matter use For eLAA UL waveforms how, reuse SRS symbolic constructions all may be design alternative.

SRS is triggered

3GPP LTE series standards define at least three kinds of technologies so that SRS is initiated or triggered in LTE-U systems.This 3 kinds of skills Art includes single SRS, periodicity SRS and aperiodicity SRS.Radio resource control (RCC) configures single SRS and periodicity SRS.RCC also configures aperiodicity SRS.However, aperiodicity SRS is triggered by down link control information (DCI).It is awarded due to non- It weighs RF spectrum to share between heterogeneous system, therefore the use of unauthorized RF spectrum is highly unpredictable.In this way, eLAA systems System can benefit from realizing aperiodicity SRS, can dynamically be triggered by the way that " SRS request mark " is arranged in DCI SRS。

Fig. 4 shows the exemplary components of electronic equipment 400.In embodiment, UE, such as may be implemented in electronic equipment 400 Node, eNB, some miscellaneous equipments for being able to carry out similar operations or their certain combination of infrastructure stations 102,103, It is incorporated to above-mentioned item or becomes their part in other ways.In some embodiments, electronic equipment 400 may include at least Application circuit 402, baseband circuit 404, radio frequency (RF) circuit 406, front-end module (FEM) circuit being coupled as shown in the figure 408 and one or more antennas 410.

As used herein, term " circuit " may refer to or including executing one or more softwares or firmware program Application-specific integrated circuit (ASIC), electronic circuit, (shared, special or group) processor and/or (shared, special or group) storage Device, combinational logic circuit and/or other suitable hardware components that the function is provided.In some embodiments, circuit can be with Be can by one or more softwares or firmware module come realize the function of realizing in circuit or with the relevant function of circuit. In some embodiments, circuit may include the logic that can at least partly operate within hardware.It can use any appropriately configured Hardware and/or software will embodiment described herein realize into system.

Application circuit 402 may include one or more application processor.For example, application circuit 402 may include circuit, Such as, but not limited to one or more single or multiple core processors.Processor may include general processor and application specific processor Any combinations of (for example, graphics processor, application processor etc.).Processor can be coupled with memory/storage and/or It may include memory/storage (for example, memory/storage 404g or 406e), and can be configured as execution The instruction being stored in memory/storage is so that various applications and/or operating system can be run in system.

Baseband circuit 404 may include the circuit of such as, but not limited to one or more single or multiple core processors.Base band Circuit 404 may include one or more baseband processor and/or control logic, to handle the reception signal from RF circuits 406 The baseband signal that path receives, and generate the baseband signal of the transmission signal path for RF circuits 406.Baseband processing circuitry 404 for generating and handling baseband signal, and can be used to control the operation of RF circuits 406 with 402 interface of application circuit.Example Such as, in some embodiments, baseband circuit 404 may include the second generation (2G) baseband processor 404a, the third generation (3G) base band Processor 404b, forth generation (4G) baseband processor 404c and/or other baseband processor.404d for other existing generations, It is developing or is developing in the future from generation to generation (for example, the 5th generation (5G), 6G etc.).Baseband circuit 404 is (for example, baseband processor 404a- One or more of d) various radio control functions can be handled, it can be via RF circuits 406 and one or more nothings Line electric network communicates.Radio control functions can include but is not limited to signal modulation/demodulation, coding/decoding, radio frequency displacement Deng.In some embodiments, the modulation/demodulation circuit of baseband circuit 404 may include Fast Fourier Transform (FFT), prelist Code and/or constellation mapping/demapping function.In some embodiments, the coding/decoding circuit of baseband circuit 404 may include Convolution, tail biting convolution, turbo, Viterbi and/or low-density checksum (LDPC) coder/decoder functionalities.Modulation/solution The embodiment of reconciliation coder/decoder functionalities is not limited to these examples, and may include other conjunctions in other embodiments Suitable function.

In some embodiments, baseband circuit 404 may include the element of protocol stack, such as the general land of evolution is wireless It is electrically accessed the element of network (EUTRAN) agreement, including such as physics (PHY), media access control (MAC), radio link control Make (RLC), packet data convergence protocol (PDCP) and/or radio resource control (RRC) element.The center of baseband circuit 404 Processing unit (CPU) 404e can be configured as the element of operation protocol stack, be used for PHY, MAC, RLC, PDCP and/or rrc layer Signaling.In some embodiments, baseband circuit may include one or more audio digital signal processors (DSP) 404f. (one or more) audio DSP 404f may include the element for compression/de-compression and echo cancellor, and in other realities It may include other suitable processing elements to apply in example.In some embodiments, the component of baseband circuit can be appropriately combined In one single chip, one single chip group, or it is arranged on same circuit board.In some embodiments, it baseband circuit 404 and answers With some or all of composition components of circuit 402 can (for example, in system on chip (SOC)) realize together.

In some embodiments, baseband circuit 404 can provide the communication compatible with one or more radiotechnics.Example Such as, in some embodiments, baseband circuit 404 can be supported and the universal terrestrial radio of evolution access network (EUTRAN) And/or the communication of other wireless MANs (WMAN), WLAN (WLAN), Wireless Personal Area.Network (WPAN).Wherein Baseband circuit 404 is configured as that the embodiment of the radio communication of more than one wireless protocols is supported to be referred to alternatively as multi-mode base band Circuit.

Baseband circuit 404 can couple with memory/storage (for example, memory/storage 404g) and/or can To include memory/storage (for example, memory/storage 404g), and it can be configured as execution and be stored in and deposit Instruction in reservoir/storage device is so that various processes application can be run.

RF circuits 406 can use the modulated electromagnetic radiation by non-solid medium to realize the communication with wireless network. In various embodiments, RF circuits 406 may include interchanger, filter amplifier etc. to promote the communication with wireless network. RF circuits 406 may include receiving signal path, and it may include being received from FEM circuits 408 for down coversion to receive signal path RF signals and baseband signal is supplied to the circuit of baseband circuit 404.RF circuits 406 can also include sending signal path, It may include for carrying out up-conversion and exporting RF to believe to the baseband signal provided by baseband circuit 404 to send signal path Number circuit for being supplied to FEM circuits 408 to be transmitted.

In some embodiments, RF circuits 406 may include receiving signal path and transmission signal path.RF circuits 406 Reception signal path may include mixer 406a amplifier circuits 406b and filter circuit 406c.RF circuits 406 Transmission signal path may include filter circuit 406c and mixer 406a.RF circuits 406 can also include synthesis Device circuit 406d, the frequency that mixer 406a and transmission signal path for synthesizing by reception signal path are used. In some embodiments, the mixer 406a for receiving signal path can be configured as based on condensating synthesizering circuit 406d offers Frequency synthesis carries out down coversion to the RF signals received from FEM circuits 408.Amplifier circuit 406b can be configured as under amplification Frequency variation signal, and filter circuit 406c can be configured as removing unwanted signal from down-conversion signal to generate Export the low-pass filter (LPF) or bandpass filter (BPF) of baseband signal.Base band can be supplied to electric output baseband signal Road 404 is to be further processed.In some embodiments, output baseband signal can be zero frequency baseband signal, but this is not It is required.In some embodiments, the mixer 406a for receiving signal path may include passive frequency mixer, but real Apply the range aspect without being limited thereto of example.

In some embodiments, the mixer 406a for emitting signal path can be configured as based on condensating synthesizering circuit The frequency synthesis that 406d is provided carries out up-conversion to input baseband signal, to generate the RF output signals of FEM circuits 408.Base band Signal can be provided by baseband circuit 404, and can be filtered by filter circuit 406c.Filter circuit 406c may include Low-pass filter (LPF), but the range of embodiment aspect without being limited thereto.

In some embodiments, the mixer of the mixer 406a and transmitting signal path of signal path are received 406a may include two or more frequency mixers, and can be arranged to quadrature frequency conversion and/or up-conversion respectively. In some embodiments, the mixer 406a of the mixer 406a and transmitting signal path that receive signal path can be wrapped Two or more frequency mixers are included, and mirror image can be arranged for and inhibited (for example, Hartley mirror images inhibit).At some In embodiment, the mixer 406a for receiving signal path and the mixer 406a for receiving signal path can be arranged To be respectively used to Direct-conversion and/or Direct conversion.In some embodiments, the mixer of signal path is received The mixer 406a of 406a and transmitting signal path can be configured for superheterodyne operation.

In some embodiments, output baseband signal and input baseband signal can be analog baseband signals, but implement The range aspect without being limited thereto of example.In some alternative embodiments, output baseband signal and input baseband signal can be numbers Baseband signal.In these alternative embodiments, RF circuits 406 may include analog-digital converter (ADC) and digital analog converter (DAC) Circuit, and baseband circuit 404 may include digital baseband interface to be communicated with RF circuits 406.

In some dual-mode embodiments, letter of the individual radio IC circuits for handling each frequency spectrum can be provided Number, but the range of embodiment aspect without being limited thereto.

In some embodiments, condensating synthesizering circuit 406d can be fractional N synthesizer or score N/N+1 synthesizers, still The range aspect without being limited thereto of embodiment, because other types of frequency synthesizer may be suitable.For example, condensating synthesizering circuit 406d can be delta-sigma synthesizer, frequency multiplier or the synthesizer including having the phaselocked loop of frequency divider.

Condensating synthesizering circuit 406d can be configured as synthesizes output frequency based on frequency input and frequency divider control input It is used for the mixer 406a of RF circuits 406.In some embodiments, condensating synthesizering circuit 406d can be score N/N+ 1 synthesizer.

In some embodiments, frequency input can be provided by voltage controlled oscillator (VCO), but this is not required.Frequency dividing Device control input can be provided by baseband circuit 404 or application processor 402 according to required output frequency.In some embodiments In, based on the channel indicated by application processor 402 frequency divider control input (for example, N) can be determined from look-up table.RF circuits 406 condensating synthesizering circuit 406d may include frequency divider, delay lock loop (DLL), multiplexer and phase accumulator.One In a little embodiments, frequency divider can be dual-mode frequency divider (DMD), and phase accumulator can be digital phase accumulator (DPA).In some embodiments, DMD can be configured as input signal divided by N or N+1 (for example, being based on carry) to provide Division ratio.In some example embodiments, DLL may include one group of cascade tunable delay element, phase-detection Device, charge pump and D flip-flop.In these embodiments, it is Nd phase that delay element, which can be configured as VCO Periodic decompositions, Deng phase grouping, wherein Nd is the quantity of the delay element in delay line.In this way, DLL offer negative-feedbacks are logical to assist in ensuring that The total delay for crossing delay line is a VCO period.

In some embodiments, condensating synthesizering circuit 406d, which can be configured as, generates carrier frequency 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 be generated relative to each other with multiple and different in carrier frequency Multiple signals of phase.In some embodiments, output frequency can be LO frequencies (fLO).In some embodiments, RF circuits 406 may include IQ/ polarity switch.

FEM circuits 408 may include receiving signal path, receive signal path may include be configured as to from one or The RF signals that mutiple antennas 410 receives are operated, amplify received signal and put forward the amplified version of received signal The circuit that supply RF circuits 406 Gong are further processed.FEM circuits 408 can also include sending signal path, send signal path May include being configured as amplifying the signal being used for transmission provided by RF circuits 406 in one or more antennas 410 The circuit that one or more is sent.

In some embodiments, FEM circuits 408 may include TX/RX interchangers, in sending mode and reception pattern behaviour Switch between work.FEM circuits may include receiving signal path and transmission signal path.The reception signal path of FEM circuits can To include low-noise amplifier (LNA), (example is provided using the RF signals of amplification reception and by the reception RF signals of amplification as output Such as, RF circuits 406 are supplied to).The transmission signal path of FEM circuits 408 may include：Power amplifier (PA), for amplifying (for example, provided by RF circuits 406) input rf signal；And one or more filters, for generate RF signals for Subsequent transmission, for example, passing through one or more of one or more antennas 410.

In some embodiments, electronic equipment 400 may include add ons, such as memory/storage, display Device, camera, sensor and/or input/output (I/O) interface.For example, RF circuits 406 can be with memory/storage coupling It closes and/or may include memory/storage (for example, memory/storage 406e), and can be configured as execution The instruction being stored in memory/storage.

Electronic equipment 400 be UE, realize UE, be incorporated to UE either UE a part embodiment in, RF circuits 406 can To receive long term evolution (LTE) subframe for including BRRS.Baseband circuit 404 is determined for the value of BRRS and based on BRRS's Value switching DL Tx wave beams.

Be eNodeB (eNB), network node or cellular base station in electronic equipment 400, realize above-mentioned item, be incorporated to above-mentioned item or Person is in the embodiment of a part for above-mentioned item, and RF circuits 406 can receive the LTE subframes for including extension (for example, 5G) xSRS. Baseband circuit 404 is determined for the value of the xSRS in LTE subframes, and refines UL Rx wave beams based on the value of xSRS.

Various embodiments of the present invention can be realized completely or partially with software and/or firmware.Software and/or firmware can By using be included in non-transient computer readable storage medium in or on instruction in the form of.It then, can be by one or more Processor reads and executees those instructions so as to execute operation described herein.Instruction can be any suitable form, Such as, but not limited to source code, compiled code, interpretive code, executable code, static code, dynamic code etc..Such meter Calculation machine readable medium may include for storing any tangible non-transient of information in the form of one or more is computer-readable Medium, such as, but not limited to read-only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage Medium, semiconductor storage medium, flash memory etc..

Fig. 5 shows the embodiment of storage medium 500.Storage medium 500 may include product.In one embodiment, it deposits Storage media 500 may include any non-transitory computer-readable medium or machine readable media, such as optics, magnetism or semiconductor Memory.Storage medium can store various types of computer executable instructions, such as instruct 502, be described herein with realizing One or more logic flows.Computer-readable or machine readable storage medium example may include that electronic data can be stored Any tangible medium, including it is volatile memory or nonvolatile memory, removable or non-removable memory, erasable Or nonerasable memory, writeable or recordable memory etc..The example of computer executable instructions may include any suitable The code of type, such as source code, compiled code, interpretive code, executable code, static code, dynamic code, object-oriented Code, visual code etc..Embodiment context without being limited thereto.

In some embodiments, storage medium 500 can be configured as execution one or more logics as described herein Flow, process, technology and/or method or part of it.For example, storage medium 500 can instruct 502 quilts with store instruction 502 It is arranged as executing the logic flow as described in reference to figure 6 and Fig. 7.

The operation of above-described embodiment can be further described with appended example with reference to the following drawings.Some figures may include patrolling Collect flow.Although these attached drawings presented here may include specific logic flow, but it is understood that logic flow only carries The example of general functionality described herein is supplied how to realize.In addition unless otherwise stated, given logic flow differs Surely it must be executed with the sequence presented.In addition, given logic flow can be by hardware element, the software member executed by processor Part or any combination thereof realize.Embodiment context without being limited thereto.

Fig. 6 shows the embodiment of logic flow 600, can indicate to be held by one or more embodiments described herein Capable operation.For example, logic flow 600 can represent can in some embodiments by UE 90 in the RAN 101 of Fig. 1 and/ Or the operation that the cellular architecture 200 of Fig. 2 executes.Embodiment context without being limited thereto.

As shown in fig. 6, at frame 602, logic flow 600 can pass through the long term evolution (LTE-U) in unlicensed spectrum Downlink (DL) channel in system receives configuration broadcast communication from the infrastructure stations of radio access network.For example, UE 90 can receive configuration broadcast communication by the DL channels of LTE-U systems from the infrastructure stations 102 of RAN 101.Configuration broadcast Message can be any control message from infrastructure stations 102, such as main information broadcast (MIB), system information broadcast (SIB) or the information element (IE) etc. of radio resource configuration (RRC) signaling and other types of signaling.

At frame 604, logic flow 600 can identify in being communicated for the configuration broadcast of the UL channels of LTE-U systems The format of uplink (UL) signal.For example, UE 90 can be in communicating for the configuration broadcast of the UL channels of LTE-U systems Identify the format of UL signals.The format of UL signals may include such as UL subframe structure 304.

At frame 606, logic flow 600 can generate UL signals according to the format identified, and UL signals are in the UL signals Subframe first part at include detection reference signal (SRS).For example, UE 90 can be generated at the first part of subframe UL subframe structure 304 with SRS.The first part of subframe may refer to the symbol of the relatively low range of stator frame.Subframe Second part may refer to the symbol of the more high scope of stator frame.Given first can be changed for specific implementation Point or second part specific amount of symbol.In various embodiments, such as first part may include UL subframe structure 304 Any one of symbol 0 to 7, and second part may include UL subframe structure 304 symbol 8 to 14 in any one It is a.In one embodiment, such as SRS can be located at the second symbol of UL subframe structure 304, be designated as in figure 3b Symbol 1.

Fig. 7 shows the embodiment of logic flow 700, can indicate to be held by one or more embodiments described herein Capable operation.For example, can indicate can be in some embodiments by the bee of the RAN of Fig. 1 101 and/or Fig. 2 for logic flow 700 The operation that infrastructure stations 102 (or 103) in nest framework 200 execute.Additionally or alternatively, logic flow 700 can be real It is now a part for another infrastructure equipment, such as realizes in the network that can be accessed by infrastructure stations 102 (or 103) Soft radio server.Embodiment context without being limited thereto.

As shown in fig. 7, at frame 702, logic flow 700 can be long term evolution (LTE-U) system in unlicensed spectrum The format of UL channel configurations uplink (UL) signal in system, UL signals, which include detection reference signal (SRS), will be located at son Instruction at the first part of frame.For example, infrastructure stations 102 (or 103) can be the UL channel configurations UL letters of LTE-U systems Number format.The format of UL signals may include such as UL subframe structure 304.Format can indicate that SRS is located at the first of subframe Part.The first part of subframe may refer to the symbol of the relatively low range of stator frame.The second part of subframe may refer to The symbol of the higher range of stator frame.The specific number that specific implementation modification gives first part or second part can be directed to The symbol of amount.In various embodiments, for example, first part may include UL subframe structure 304 symbol 0 to 7 in it is any One, and second part may include any one of the symbol 8 to 14 of UL subframe structure 304.In one embodiment, For example, SRS can be located at the second symbol of UL subframe structure 304, it is designated as symbol 1 in figure 3b.

At frame 704, logic flow 700 can be associated with configuration broadcast communication by the format of UL signals.For example, basic It facility station 102 (or 103) can be associated with configuration broadcast communication by UL subframe structure 304.Configuration broadcast message can be come From any control message of infrastructure stations 102, such as main information broadcast (MIB), system information broadcast (SIB) or radio money The information element (IE) in source, configuration (RRC) signaling and other types of signaling.

At frame 706, logic flow 700 can communicate configuration broadcast and be encoded under LTE-U systems It is transmitted on line link (DL) channel.It is encoded for example, infrastructure stations 102 (or 103) can communicate configuration broadcast, To carry out being transmitted for the receptions of UE 90 on the DL channels of LTE-U systems.Then, UE 90 can be according to UL subframe structure 304 execute UL transmission, with reference to as described in figure 3B and Fig. 6.

Various embodiments can be realized using the combination of hardware element, software element or both.The example of hardware element It may include processor, microprocessor, circuit, circuit element (for example, transistor, resistor, capacitor, inductor etc.), integrate Circuit, application-specific integrated circuit (ASIC), programmable logic device (PLD), digital signal processor (DSP), field programmable gate Array (FPGA), logic gate, register, semiconductor devices, chip, microchip, chipset etc..The example of software may include soft Part component, application, computer program, application program, system program, machine program, operating system software, middleware, is consolidated program Part, software module, routine, subroutine, function, method, process, software interface, application programming interfaces (API), instruction set, calculating Code, computer code, code segment, computer code segments, word, value, symbol or any combination thereof.Determine whether to use hardware Element and/or software element realize that embodiment can change according to any amount of factor, such as desired computation rate, work( Rate is horizontal, thermal capacitance is poor, process cycle budget, input data rate, output data rate, memory resource, data bus speed With other designs or performance limitation.

The one or more aspects of at least one embodiment can be referred to by representativeness stored on a machine readable medium It enables to realize, which indicates the various logic in processor, makes machine manufacture logic to hold when being read by machine Row the techniques described herein.This expression for being known as " IP kernel " can be stored on tangible machine readable media, and be supplied to Various clients or manufacturing facility, to be loaded into the manufacture machine of actual manufacture logic or processor.Some embodiments can example It is such as realized using machine readable media or article, the machine readable media or article can be with store instruction or one group of instructions, such as Fruit is executed by machine, then machine can be made to execute method and/or the operation of basis.Embodiment.Such machine may include example Such as any suitable processing platform, computing platform, computing device, processing equipment, computing system, processing system, computer, processing Device etc., and can be realized using any suitable combination of hardware and/or software.

Machine readable media or article may include the memory cell, memory devices, storage of for example any suitable type Implements product, storage medium, storage device, storage article, storage medium and/or storage unit, for example, memory, can be removed or It is irremovable medium, erasable or non-erasable medium, writable or rewritable media, number or simulation medium, hard disk, soft Disk, compact disc read-only memory (CD-ROM), recordable disc (CD-R), Ray Disc Rewritable (CD-RW), CD, magnetic medium, magneto-optic Medium, mobile memory card or disk, various types of digital versatile discs (DVD), tape, cassette tape etc..Instruction can wrap Include realized using any suitable advanced, rudimentary, object-oriented, visual, compiling and/or the programming language explained it is any suitable The code of type, such as source code, compiled code, interpretive code, executable code, static code, dynamic code, encrypted code Deng.

Following example is related to further embodiment：

In the first example, the device of user equipment may include at least one processor；And logic, it patrols at least partially It collects and is realized in the circuit for being coupled at least one processor, which is used for：Pass through the long term evolution in unlicensed spectrum (LTE-U) (DL) channel of the downlink in system receives configuration broadcast communication from the infrastructure stations of radio access network； The format of uplink (UL) signal is identified in the configuration broadcast communication of the UL channels of LTE-U systems；According to the lattice identified Formula generates UL signals, and UL signals include detection reference signal (SRS) at the first part of the subframe of the UL signals.

Further to the first example, SRS is included at the second symbol of the first part of subframe by UL signals.

Further to the first example, logic generates the UL signals of the first symbol of the punching with subframe.

Further to the first example, logic generates the UL signals of the first symbol of the punching with subframe, and the of punching One symbol includes predetermined symbol.

Further to the first example, logic generates the UL signals of the first symbol of the punching with subframe, and the of punching One symbol includes being left white symbol.

Further to the first example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to the first example, logic generates the UL with demodulated reference signal (DM-RS) in the symbol of subframe Signal.

Further to the first example, logic generates the UL signals with multiple demodulated reference signals (DM-RS), wherein DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

Further to the first example, logic is generated has physical uplink shared channel in the symbol of subframe (PUSCH) the UL signals of signal.

Further to the first example, logic is generated has physical uplink shared channel in the 9th symbol of subframe (PUSCH) the UL signals of signal.

Further to the first example, device includes radio frequency (RF) transceiver for being communicably coupled to circuit, RF transceivers It regard UL signals as RF signals for the UL channels by LTE-U systems to send.

Further to the first example, which includes Memory Controller, is communicably coupled at least one processor To control storage operation and input/output (I/O) controller of at least one processor, be communicably coupled to circuit with The I/O operation of control circuit.

In the second example, a kind of method may include：By in long term evolution (LTE-U) system in unlicensed spectrum Downlink (DL) channel from the infrastructure stations of radio access network receive configuration broadcast communication；For LTE-U systems The format of uplink (UL) signal is identified in the configuration broadcast communication of the UL channels of system；UL letters are generated according to the format identified Number, UL signals include detection reference signal (SRS) at the first part of the subframe of the UL signals.

Further to the second example, method include generate UL signals with by SRS include subframe first part the At two symbols.

Further to the second example, method includes the UL signals for the first symbol for generating the punching with subframe.

Further to the second example, method includes the UL signals for the first symbol for generating the punching with subframe, punching The first symbol include predetermined symbol.

Further to the second example, method includes the UL signals for the first symbol for generating the punching with subframe, punching The first symbol include be left white symbol.

Further to the second example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to the second example, method includes generating to have demodulated reference signal (DM-RS) in the symbol of subframe UL signals.

Further to the second example, method includes generating the UL signals with multiple demodulated reference signals (DM-RS), Middle DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

Further to the second example, method includes generating to have physical uplink shared channel in the symbol of subframe (PUSCH) the UL signals of signal.

Further to the second example, method includes generating to have physical uplink link sharing in the 9th symbol of subframe The UL signals of channel (PUSCH) signal.

Further to the second example, method includes regarding UL signals as RF signals hair by the UL channels of LTE-U systems It send.

In third example, at least one machine readable storage medium may include making calculating when executed by a computing apparatus Equipment executes following instructions：Believed by the downlink (DL) in long term evolution (LTE-U) system in unlicensed spectrum Road receives the instruction that configuration broadcast communicates from the infrastructure stations of radio access network；Match in the UL channels of LTE-U systems Set the format that uplink (UL) signal is identified in broadcast communication；UL signals are generated according to the format identified, UL signals are at this It include detection reference signal (SRS) at the first part of the subframe of UL signals.

Further to third example, storage medium includes having at the second symbol of the first part of subframe for generating There is the instruction of the UL signals of SRS.

Further to third example, storage medium includes the UL letters of the first symbol for generating the punching with subframe Number instruction.

Further to third example, storage medium includes the UL letters of the first symbol for generating the punching with subframe Number instruction, the first symbol of punching includes predetermined symbol.

Further to third example, storage medium includes the UL letters of the first symbol for generating the punching with subframe Number instruction, the first symbol of punching includes being left white symbol.

Further to third example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to third example, storage medium includes having demodulated reference signal in the symbol of subframe for generating (DM-RS) instruction of UL signals.

Further to third example, storage medium includes having multiple demodulated reference signals (DM-RS) for generating The instruction of UL signals, wherein DM-RS are in the 4th symbol and DM-RS is in the 11st symbol.

Further to third example, storage medium includes having physical uplink link in the symbol of subframe for generating The instruction of the UL signals of shared channel (PUSCH) signal

Further to third example, storage medium includes having physical uplink in the 9th symbol of subframe for generating The instruction of the UL signals of link shared channels (PUSCH) signal.

Further to third example, storage medium includes for being used as UL signals by the UL channels of LTE-U systems The instruction that RF signals are sent.

In the 4th example, the device of user equipment may include for by the long term evolution in unlicensed spectrum (LTE-U) downlink (DL) channel of system receives the dress that configuration broadcast communicates from the infrastructure stations of radio access network It sets；Device for the format of identification uplink (UL) signal in the configuration broadcast communication of the UL channels in LTE-U systems；With And the device for generating UL signals according to the format identified, UL signals include at the first part of the subframe of the UL signals Detection reference signal (SRS).

Further to the 4th example, device includes for generating UL signals to include the first part in subframe by SRS The second symbol at device.

Further to the 4th example, device includes the UL signals of the first symbol for generating the punching with subframe Device.

Further to the 4th example, device includes the UL signals of the first symbol for generating the punching with subframe First symbol of device, the wherein punching includes predetermined symbol.

Further to the 4th example, device includes the UL signals of the first symbol for generating the punching with subframe Device, wherein the first symbol of the punching include being left white symbol.

Further to the 4th example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to the 4th example, device includes having demodulated reference signal (DM- in the symbol of subframe for generating RS the device of UL signals).

Further to the 4th example, device includes believing for generating the UL with multiple demodulated reference signals (DM-RS) Number device, wherein DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

Further to the 4th example, device includes having physical uplink link sharing in the symbol of subframe for generating The device of the UL signals of channel (PUSCH) signal.

Further to the 4th example, device includes having physical uplink link in the 9th symbol of subframe for generating The device of the UL signals of shared channel (PUSCH) signal.

Further to the 4th example, device includes regarding UL signals as RF letters for the UL channels by LTE-U systems Number send device.

In the 5th example, the device of infrastructure stations may include at least one processor；And logic, at least part Logic realizes that the logic is used in the circuit for being coupled at least one processor：For the long term evolution in unlicensed spectrum (LTE-U) format of UL channel configurations uplink (UL) signal of system, UL signals include detection reference signal (SRS) by position In the instruction of the first part of subframe；The format of UL detectable signals is associated with configuration broadcast communication；And to configuration broadcast Communication is encoded to be transmitted on the downlink of LTE-U systems (DL) channel.

Further to the 5th example, logic configures the format of UL signals at the second symbol of the first part of subframe Including SRS.

Further to the 5th example, logic configures the format of UL signals with the first symbol of the punching including subframe.

Further to the 5th example, logic configures the format of UL signals with the first symbol of the punching including subframe, beats First symbol in hole includes predetermined symbol.

Further to the 5th example, logic configures the format of UL signals with the first symbol of the punching including subframe, beats First symbol in hole includes being left white symbol.

Further to the 5th example, the communication of logic configuration broadcast includes that down link control information (DCI), main information are wide Broadcast (MIB), system information broadcast (SIB) or radio resource control (RRC) signaling.

Further to the 5th example, it includes demodulation reference letter that logic, which configures the format of UL signals with the symbol in subframe, Number (DM-RS).

Further to the 5th example, logic configure UL signals format to include multiple demodulated reference signals (DM-RS), Wherein DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

Further to the 5th example, the format that logic configures UL signals with the symbol in subframe includes physical uplink chain Share channel (PUSCH) signal in road.

Further to the 5th example, the format that logic configures UL signals with the 9th symbol in subframe includes physically Ink Shared Channel (PUSCH) signal.

Further to the 5th example, device includes radio frequency (RF) transceiver for being communicably coupled to circuit, RF transceivers It regard UL signals as RF signals for the UL channels by LTE-U systems to send.

Further to the 5th example, device includes Memory Controller, be communicably coupled at least one processor with Control the storage operation at least one processor；And input/output (I/O) controller, be communicably coupled to circuit with The I/O operation of control circuit.

In the 6th example, a kind of method may include：For the UL of long term evolution (LTE-U) system in unlicensed spectrum The format of channel configuration uplink (UL) signal, UL signals include that detection reference signal (SRS) will be positioned at the first of subframe The instruction divided；The format of UL detectable signals is associated with configuration broadcast communication；And to configuration broadcast communication encoded with It is transmitted on downlink (DL) channel of LTE-U systems.

Further to the 6th example, method includes configuring the format of UL signals to include at first of subframe by SRS At the second symbol divided.

Further to the 6th example, method includes the first symbol for configuring the format of UL signals with the punching including subframe Number.

Further to the 6th example, method includes the first symbol for configuring the format of UL signals with the punching including subframe Number, the first symbol of punching includes predetermined symbol.

Further to the 6th example, method includes the first symbol for configuring the format of UL signals with the punching including subframe Number, the first symbol of punching includes being left white symbol.

Further to the 6th example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to the 6th example, method includes：It includes demodulation that the format of UL signals, which is configured, with the symbol in subframe Reference signal (DM-RS).

Further to the 6th example, method includes：The format of UL signals is configured to include multiple demodulated reference signals (DM-RS), wherein DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

Further to the 6th example, method includes：The format of configuration UL signals includes physics with the symbol in subframe Uplink shared channel (PUSCH) signal.

Further to the 6th example, method includes：Configuration UL signals format include with the 9th symbol in subframe Physical uplink shared channel (PUSCH) signal.

Further to the 6th example, method includes regarding UL signals as RF signals hair by the UL channels of LTE-U systems It send.

In the 7th example, at least one machine readable storage medium may include making calculating when executed by a computing apparatus Equipment executes following instructions：For the UL channel configuration uplinks of long term evolution (LTE-U) system in unlicensed spectrum (UL) format of signal, UL signals include that detection reference signal (SRS) will be positioned at the instruction of the first part of subframe；UL is detected The format of signal is associated with configuration broadcast communication；And configuration broadcast communication is encoded in the downlink of LTE-U systems It is transmitted on link (DL) channel.

Further to the 7th example, storage medium includes for configuring the format of UL signals to include in subframe by SRS First part the second symbol at instruction.

Further to the 7th example, storage medium includes for configuring the format of UL signals with the punching including subframe The instruction of first symbol.

Further to the 7th example, storage medium includes for configuring the format of UL signals with the punching including subframe The instruction of first symbol, wherein the first symbol punched includes predetermined symbol.

Further to the 7th example, storage medium includes for configuring the format of UL signals with the punching including subframe The instruction of first symbol, wherein the first symbol punched includes being left white symbol.

Further to the 7th example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to the 7th example, storage medium includes for configuring the format of UL signals to be wrapped in the symbol of subframe Include the instruction of demodulated reference signal (DM-RS).

Further to the 7th example, storage medium includes for configuring the format of UL signals to include multiple demodulation references The instruction of signal (DM-RS), wherein DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

Further to the 7th example, storage medium includes for configuring the format of UL signals to be wrapped in the symbol of subframe Include the instruction of physical uplink shared channel (PUSCH) signal.

Further to the 7th example, storage medium includes for configuring the format of UL signals in the 9th symbol of subframe It include the instruction of physical uplink shared channel (PUSCH) signal.

Further to the 7th example, storage medium includes for being used as UL signals by the UL channels of LTE-U systems The instruction that RF signals are sent.

In the 8th example, the device for infrastructure stations may include：For being drilled for long-term in unlicensed spectrum Into the device of the format of UL channel configurations uplink (UL) signal of (LTE-U) system, UL signals include detection reference signal It (SRS) will be positioned at the instruction of the first part of subframe；For the format of UL detectable signals is associated with configuration broadcast communication Device；And for encoding configuration broadcast communication in the device of the downlink of LTE-U systems (DL) channel.

Further to the 8th example, device includes for configuring the format of UL signals with the of the first part of subframe It include the device of SRS at two symbols.

Further to the 8th example, device includes for configuring the format of UL signals with first of the punching including subframe The device of symbol.

Further to the 8th example, device includes for configuring the format of UL signals with first of the punching including subframe First symbol of the device of symbol, the wherein punching includes predetermined symbol.

Further to the 8th example, device includes for configuring the format of UL signals with first of the punching including subframe The device of symbol, wherein the first symbol of the punching include being left white symbol.

Further to the 8th example, configuration broadcast communication includes down link control information (DCI), main information broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

Further to the 8th example, it includes solution that device, which includes for configuring the format of UL signals with the symbol in subframe, Adjust the device of reference signal (DM-RS).

Further to the 8th example, device includes for configuring the format of UL signals to include multiple demodulated reference signals (DM-RS) device, wherein DM-RS are in the 4th symbol and DM-RS is in the 11st symbol.

Further to the 8th example, it includes object that device, which includes for configuring the format of UL signals with the symbol in subframe, Manage the device of uplink shared channel (PUSCH) signal.

Further to the 8th example, device includes for configuring the format of UL signals to be wrapped in the 9th symbol of subframe Include the device of physical uplink shared channel (PUSCH) signal.

Further to the 8th example, device includes regarding UL signals as RF letters for the UL channels by LTE-U systems Number send device.

Here numerous specific details are set forth to provide a thorough understanding of embodiments.However, people in the art Member will be understood that, can put into practice these embodiments without these specific details.In other cases, it does not retouch in detail Well known operation, component and circuit are stated, in order to avoid fuzzy embodiment.It is appreciated that specific structure and function details disclosed herein It can be representative, the range of embodiment might not be limited.

Some embodiments can be described using expression " coupling " and " connection " and their derivative.These terms are not It is mutual synonym.It is, for example, possible to use term " connection " and/or " coupling " describe some embodiments, with instruction two Or more element physically or electrically contact directly with one another.However, term " coupling " also may indicate that two or more elements that This is not directly contacted with, but still cooperates or interacts with.

Unless stated otherwise, it is appreciated that, the terms such as " processing ", " calculating ", " operation ", " determination " are Action and/or the process for referring to computer or computing system or similar electronic computing device, will be indicated as posting for computing system It the data manipulation of physical quantity (for example, electronics) in storage and/or memory and/or is transformed to be similarly represented as computing system Memory, register or other this type of information storage, transmission or display equipment in physical quantity other data.Embodiment is not It is limited to this context.

It should be noted that method described herein need not execute in the order of presentation or in any particular order.In addition, It can be executed in a manner of serial or parallel about the various activities herein for knowing method for distinguishing description.

Although this article has illustrated and described specific embodiments, it should be appreciated that be computed to realize any of identical purpose Arrange alternative shown specific embodiment.The disclosure is intended to cover any and all reorganizations or variation of various embodiments. It should be appreciated that above description illustratively carries out, rather than it is restrictive.After reading above description, this field skill Art personnel will be clear that combination and the other embodiments for the above example not specifically described herein.Therefore, various embodiments Range include any other application using above-mentioned composition, structures and methods.

It is emphasized that the abstract of the disclosure is provided to meet 37C.F.R. § 1.72 (b), it is required that abstract allows Reader quickly determines property disclosed in technology.Understanding when submission is that abstract is not used in explanation or limits the model of claim It encloses or meaning.In addition, in specific implementation mode above, it can be seen that simplify the disclosure, various features are individually being implemented It is grouped together in example.Disclosed method is not necessarily to be construed as reflecting that embodiment claimed is needed than each right The intention for the more features being expressly recited in it is required that.But as the following claims reflect, subject matter is less than single All features of a disclosed embodiment.Therefore, following following claims is incorporated at this in specific implementation mode, each claim Itself is as individual preferred embodiment.In the following claims, term " comprising " and " wherein " it is used separately as corresponding term The general English equivalent of "comprising" and " wherein ".In addition, term " first ", " second " and " third " etc. is used only as marking, It is not intended to apply numerical requirements to its object.

Although with this theme of the dedicated language description of structural features and or methods of action, it should be appreciated that appended right is wanted The theme defined in book is asked to be not necessarily limited to above-mentioned specific features or action.It substitutes, discloses above-mentioned specific features and action is made To realize the exemplary forms of claim.

Claims (30)

1. a kind of device of user equipment, including：

At least one processor；And

At least part of logic, the logic realizes in the circuit for being coupled at least one processor, the logic For：

By downlink (DL) channel of long term evolution (LTE-U) system in unlicensed spectrum from the base of radio access network Infrastructure station receives configuration broadcast communication；

The format of uplink (UL) signal is identified in the configuration broadcast communication of the UL channels of the LTE-U systems；And

The UL signals are generated according to the format identified, are wrapped at the first part of subframe of the UL signals in the UL signals Include detection reference signal (SRS).

2. device as described in claim 1, the UL signals include institute at the second symbol of the first part of the subframe State SRS.

3. device as claimed in claim 1 or 2, the logic is used to generate the first symbol of the punching with the subframe The UL signals.

4. device as claimed in claim 1 or 2, the logic is used to generate the first symbol of the punching with the subframe First symbol of the UL signals, the punching includes predetermined symbol.

5. device as claimed in claim 1 or 2, the logic is used to generate the first symbol of the punching with the subframe The UL signals, the first symbol of the punching include being left white symbol.

6. device as described in claim 1, the configuration broadcast communication include：Down link control information (DCI), main information Broadcast (MIB), system information broadcasts (SIB) or radio resource control (RRC) signaling.

7. device as described in claim 1, wherein the logic has demodulation ginseng for generating in the symbol of the subframe Examine the UL signals of signal (DM-RS).

8. device as described in claim 1, the logic is used to generate described with multiple demodulated reference signals (DM-RS) UL signals, wherein DM-RS are in the 4th symbol and DM-RS is in the 11st symbol.

9. device as described in claim 1, the logic has physical uplink chain for generating in the symbol of the subframe Share the UL signals of channel (PUSCH) signal in road.

10. device as described in claim 1, the logic has physically for generating in the 9th symbol of the subframe The UL signals of ink Shared Channel (PUSCH) signal.

11. device as described in claim 1, including it is communicably coupled to radio frequency (RF) transceiver of the circuit, the RF Transceiver is regard the UL signals as RF signals by the UL channels of the LTE-U systems and is sent.

12. device as described in claim 1, including：Memory Controller, be communicably coupled at least one processor with Control the storage operation of at least one processor；And input/output (I/O) controller, it is communicably coupled to the electricity Road is to control the I/O operation of the circuit.

13. a kind of method, including：

By downlink (DL) channel of long term evolution (LTE-U) system in unlicensed spectrum from the base of radio access network Infrastructure station receives configuration broadcast communication；

The format of uplink (UL) signal is identified in being communicated for the configuration broadcast of the UL channels of the LTE-U systems；And And

UL signals are generated according to the format identified, include detection at the first part of subframe of the UL signals in the UL signals Reference signal (SRS).

14. method as claimed in claim 13, including：The UL signals are generated to include in the subframe by the SRS At second symbol of first part.

15. method according to claim 13 or 14, including generate the UL letters of the first symbol of the punching with subframe Number.

16. method according to claim 13 or 14, including generate the UL letters of the first symbol of the punching with the subframe Number, the first symbol of the punching includes predetermined symbol.

17. method according to claim 13 or 14, including generate described in the first symbol of the punching with the subframe UL signals, the first symbol of the punching include being left white symbol.

18. method as claimed in claim 13, including generate in the symbol of the subframe with demodulated reference signal (DM- RS the UL signals).

19. method as claimed in claim 13, including the UL signals with multiple demodulated reference signals (DM-RS) are generated, Middle DM-RS is in the 4th symbol and DM-RS is in the 11st symbol.

20. method as claimed in claim 13, including：Generate has physical uplink link sharing in the symbol of the subframe The UL signals of channel (PUSCH) signal.

21. method as claimed in claim 13, including：Generate has physical uplink link in the 9th symbol of the subframe The UL signals of shared channel (PUSCH) signal.

22. method as claimed in claim 13 includes regarding UL signals as RF signals by the UL channels of the LTE-U systems It sends.

23. at least one machine readable storage medium, including make the computing device execution following when executed by a computing apparatus The instruction of item：

By downlink (DL) channel of long term evolution (LTE-U) system in unlicensed spectrum from the base of radio access network Infrastructure station receives configuration broadcast communication；

The format of uplink (UL) signal is identified in the configuration broadcast communication of the UL channels of the LTE-U systems；And

UL signals are generated according to the format identified, the UL signals include at the first part of the subframe of the UL signals Detection reference signal (SRS).

24. at least one machine readable storage medium as claimed in claim 23, including such as give an order：It generates in the subframe First part the second symbol at include the SRS the UL signals.

25. at least one machine readable storage medium as claimed in claim 23, including such as give an order：Generating has the son The UL signals of first symbol of the punching of frame.

26. at least one machine readable storage medium as described in claim 23 or 24, including such as give an order：Generating has institute The UL signals of the first symbol of the punching of subframe are stated, the first symbol of the punching includes predetermined symbol.

27. at least one machine readable storage medium as described in claim 23 or 24, including such as give an order：Generating has son The UL signals of first symbol of the punching of frame, the first symbol of punching include being left white symbol.

28. at least one machine readable storage medium as described in claim 23 or 24, under the configuration broadcast communication includes Downlink control information (DCI), main information broadcast (MIB), system information broadcast (SIB) or radio resource control (RRC) letter It enables.

29. at least one machine readable storage medium as claimed in claim 23, including such as give an order：Generate the subframe The UL signals with demodulated reference signal (DM-RS) in symbol.

30. at least one machine readable storage medium as claimed in claim 23, including such as give an order：Pass through the LTE-U The UL channels of system are sent the UL signals as RF signals.