CN106413044A - Method of wireless communication in unlicensed spectrum and related apparatus using the same - Google Patents

Abstract

The disclosure is directed to a method of wireless communication in an unlicensed spectrum and related apparatus using the same. In one of the exemplary embodiments, the disclosure is directed to a method of wireless communication in an unlicensed spectrum, applicable to a base station, the method would include not limited to: establishing a primary serving cell (Pcell) in a licensed spectrum; establishing a secondary serving cell (Scell) in the unlicensed spectrum to operate as a virtual frequency cell (VFC); configuring a frequency hopping sequence of the VFC; transmitting the frequency hopping sequence to the Scell through the Pcell; and controlling the Scell to operate according to the frequency hopping sequence. According to the technical scheme, channel aware scheduling and frequency hopping in a virtual cell is performed within an unlicensed spectrum so as to reduce interference, increase communication efficiency, and improve the overall system performance.

Description

Wireless communications method and its user's equipment in unlicensed spectrum

Technical field

The present invention be directed to a kind of wireless communications method in unlicensed spectrum and its user's equipment

Background technology

In the past, cellular system was in frequency spectrum operation that is special or authorizing, wherein base station and wireless terminal It is to be communicated by licensing to the radio frequency of wireless operator (Radio Frequency, RF). Cellular network communication system has been widely used such as：Industry, science and medical science (ISM) are wireless frequently Section or other free frequency spectrums.Long Term Evolution (Long Term Evolution, LTE) uses and does not award Power frequency spectrum, extremely telecommunication apparatus dealer and operator attract attention.One of them the reasons why is to authorize frequency Spectrum source is limited.In order to provide many users higher throughput services, LTE system can use Unlicensed spectrum is communicating.

In recent years, LTE authorizes auxiliary access (LTE Licensed-Assisted Access, LTE-LAA) It has been that 3GPP version 13 and the version in future are discussed.The framework of LTE-LAA unlicensed spectrum It is referred to as unauthorized LTE (Unlicensed LTE, LTE-U).LTE-U is likely to become of future generation cellular The key features of system.When LAA radio communication is used in unlicensed spectrum or free frequency spectrum, may Other are had to use the logical of identical or different wireless access technology (radio access technologies, RATs) Cell part, is in communication in same frequency spectrum.For example：The operation of LTE-U is by must with existing Wi-Fi no Line electricity coexists.

Therefore, in order to be coexisted using the wireless access technology of same unauthorized frequency range with other, do not awarding In power frequency range, operation LAA is a major challenge.Due to unauthorized frequency range by other as the radio of Wi-Fi is deposited Take technology to be shared, and have some multimode radio devices and radio component, for example, support simultaneously The base station of IEEE 802.11ac and LAA or intelligent mobile phone, those use the wireless of unlicensed spectrum Electrical access technology may have different settings to channelizing.Using different channelizings (such as：Some radio are Narrow frequency, some radio are that wideband, some radio can operate in variable frequency range) Radio Access Common point between technology and intercommunity will be problems to be solved.

Fig. 1 illustrates to be taken by 3GPP TR 36.889V0.4.0 (2015-04) according to IEEE 802.11 standard 5GHz frequency channelizing.By Fig. 1 it is evident that unauthorized communication systems different at present has Different channelizing strategies.For making wireless communication system reach rational efficiency, radio operation needs to consider How to set communication device under the multichannel environment that may be disturbed by each unknown source generation.For Radio communication, carries out adaptive selection in some unauthorized passages and can reduce interference, increase communication effect Rate and improve system effectiveness.Therefore, for following radio communication, need to be proposed in multichannel The efficient mechanism of unauthorized frequency range is set under environment.

Content of the invention

Therefore, the present invention be directed to unlicensed spectrum and using same procedure relevant apparatus in channel radio The method of letter.

In an exemplary embodiment, the present invention be directed in unlicensed spectrum radio communication method, fit For base station, the method includes but is not limited to：Set up primary service area (primary serving authorizing frequency spectrum Cell, Pcell)；Unlicensed spectrum set up time service area (secondary serving cell, Scell) using as Virtual frequency area (virtual frequency cell, VFC)；The frequency hop sequences of configuration VFC；By Pcell Transmission frequency hop sequences are to Scell；And control Scell operation according to frequency hop sequences.

In an exemplary embodiment, the present invention be directed in unlicensed spectrum radio communication method, fit For user's equipment, this method includes but is not limited to：It is linked to Pcell authorizing frequency spectrum；Do not awarding Power frequency spectrum is linked to Scell；Control signal information is received by Pcell and operates the VFC in Scell； The frequency hop sequences of VFC are received from control signal information；And operated in VFC according to frequency hop sequences.

In an exemplary embodiment, the present invention be directed to a kind of user's equipment, including but not limited to：No Line transceiver and the processor being coupled to wireless transceiver.Processor is at least configured to：Authorizing frequency spectrum In, connected to Pcell by wireless transceiver；Set up Scell in unlicensed spectrum using as VFC；Join Put the frequency hop sequences of VFC；By Pcell transmission frequency hop sequences to Scell；And according to frequency hop sequences control Scell operation processed.

In order that the feature and advantage of the disclosure above of the present invention are easier to understand, embodiment with accompanying drawing under Face has a detailed description.Although it is understood that foregoing general description and detailed description below are all Exemplary, and be intended to provide being explained further as disclosed in claims.

Although the present invention is disclosed as above with embodiment, so it is not limited to the present invention, any affiliated Have usually intellectual in technical field, without departing from the spirit and scope of the present invention, a little when making Change and retouching, therefore protection scope of the present invention is when being defined depending on the defined person of appended claims.

Brief description

Comprise accompanying drawing to further understand the present invention, and accompanying drawing is incorporated in this specification and constitutes this explanation A part for book.Described brief description embodiments of the invention, and together with the description in order to explain the present invention Principle.

Fig. 1 illustrates the 5GHz frequency according to IEEE 802.11 standard channel；

Fig. 2A is shown in reflecting between virtual area ID and true area ID according to the present invention one exemplary embodiment Penetrate relation；

Fig. 2 B is shown in the pass between virtual area ID and true area ID according to the present invention one exemplary embodiment System's change；

Fig. 3 illustrates the operation in wireless network for the virtual frequency area according to the present invention one exemplary embodiment；

Fig. 4 illustrates the operation of frequency hopping according to the present invention one exemplary embodiment；

Fig. 5 is shown according to the present invention one exemplary embodiment and is applied to the wireless of base station in unlicensed spectrum The method of communication；

Fig. 6 is shown in the person's of being suitable for use with equipment in unlicensed spectrum according to the present invention one exemplary embodiment The method of radio communication；

Fig. 7 illustrates the functional block diagram of base station according to the present invention one exemplary embodiment；

Fig. 8 is according to the functional block diagram of the present invention one exemplary embodiment person's of being shown with equipment.

Description of reference numerals：

301：Base station；

311、312、313、314、315、316：Mobile station；

321、322、323：Passage；

700：Base station；

701、801：Processing unit；

702、802：RF transceiver；

703：Backhaul transceiver；

704、804：Storage medium；

800：User's equipment；

803：Wi-Fi transceiver；

S501、S502、S503、S504、S505、S601、S602、S603、S604、S605：Step Suddenly.

Specific embodiment

Now in detail with reference to embodiment disclosed by the invention, example therein is shown in the drawings, anyly Side may have identical reference symbol for, in accompanying drawing and specification, representing same or analogous with instruction Partly.

Because operation is under multichannel environment, it carries out may holding during radio communication in unlicensed spectrum Easily disturbed by the various unauthorized operations with different channelizing mechanism, the present invention describes a kind of radio communication The method of system and relevant apparatus, it enters row of channels perception row among the virtual frequency area of unlicensed spectrum Become (channel aware scheduling) and frequency hopping, so as to reduce interference, increase communication efficiency and Improve total system efficiency.

The present invention proposes to set up at least one virtual frequency area (VFC) and at least one actual frequency area (AFC) Between mapping relations.Large-scale service area base station operates (carrier aggregation by carrier aggregation Operation), primary service area (Pcell) and one or more service area (Scell) can be set up.Pcell operates in Main carrier frequency user's equipment (UE) carries out initial stage connection establishment program or makes UE start connection reconstruction Vertical program；Scell operates under the second carrier frequency, once in radio resource control (radio resource Control, RRC) connection establishment can be set, and can be used to provide extra radio resource.VFC Can be deployed in operate in unlicensed spectrum in Scell by base station.

VFC can distribute identification code (ID) by base station, is also called virtual frequency area identification code (VFC-ID), And AFC can distribute identification code (ID) by base station, is also called actual frequency area identification code (AFC-ID).This Distribution can be static or semi-static mode.Single VFC-ID can map to one or more AFC-ID.

Mapping relations may also comprise one group of radio channel.For example, specific radio channel can be set to AFC.Again for example, single VFC can be set one group of radio channel.Therefore, real in the middle of VFC The radio channel on border can be selected from this group radio channel.

As an example, Fig. 2A is shown in virtual area ID and true area according to the present invention one exemplary embodiment Mapping relations between ID.In fig. 2, VFC can be designated as VFC ID#X, and wherein X is non- Zero integer.And, in this example, VFC ID#X can configure one group of radio channel, its be passage 1～ Passage 100.Each group of passage can correspond to different AFC.And in fig. 2, VFC ID#X can quilt It is set as thering is a potential association with AFC ID#N, AFC ID#M and AFC ID#P, wherein N, M and P is different nonzero integers, and each ID can correspond to from passage 1～passage 100 The different passages selected.

VFC can be set to convert its operating frequency.When base station needs to switch the operating frequency of Scell When, VFC is mapped to different AFC by Scell.In other words, as Scell in unlicensed spectrum When operating frequency changes, the mapping relations of VFC and multiple AFC can be from VFC ID couple One AFC ID is (for example：VFC ID#1～AFC ID#1) change into this VFC ID to different AFC ID is (for example：VFC ID#1～AFC ID#2), therefore when AFC ID changes, VFC ID maintains not Become.

As an example, Fig. 2 B is shown in virtual area ID and true area according to the present invention one exemplary embodiment Relationship change between ID.According to Fig. 2 B, AFC#1 using carrier frequency f1 and has physical areas identification Code AFC ID#1；AFC#2 using carrier frequency f2 and has physical areas identification code AFC ID#2.False If base station at present in unlicensed spectrum using VFC ID#X, wherein X is nonzero integer, but mesh Front base station in unlicensed spectrum using f1 may determine radio communication in unlicensed spectrum from f1 It is changed to f2.In this way, base station may relatively be inclined to use identical VFC ID.Therefore, this In example, base station can keep identical VFC ID#X.However, in order to carrier frequency is changed to f2 from f1, It will be modified to VFC from the mapping between VFC ID#X to AFC ID#1 as shown in Fig. 2 B ID#X to AFC ID#2.

Fig. 3 illustrates the operation in wireless network for the virtual frequency area according to the present invention one exemplary embodiment.In figure In 3 examples, wireless network includes but is not limited to：Base station 301, multiple UE (i.e. mobile station or MS) 311, 312nd, 313,314,315,316, unauthorized wireless electricity LTE (LTE-UL) operating in passage 1 321, Operate in electricity LTE of the unauthorized wireless in passage 2 322 (LTE-UL) and operate in passage 3 323 In unauthorized wireless electricity LTE (LTE-UL).

Each UE can connect to VFC.Before connecting to VFC, each UEs 311～316 can pass through The Pcell of base station 301 is connected to base station 301 by the carrier frequency authorizing.Connect to Pcell it Afterwards, any one UEs 311～316 can by base station 301 set with wherein one with service in VFC In associated AFC, start to be communicated with base station 301.Any one UEs in existing AFC 311～316 can be carried out in base station 301 and other UE using the radio channel in this existing AFC Communication.In order to change AFC, UE can receive the control signal information related to VFC operation.React on Received control signal information, any one UEs 311～316 can in the case that VFC remains unchanged, Change its existing AFC according to the instruction of control signal information.

Rule according to change AFC and pattern, identical or different control signal information also can notify arbitrary Individual UEs 311～316.For example, after receiving control signal information, UEs 311～316 can change automatically Its existing AFC and VFC remains unchanged.In one embodiment, VFC can set all connected Wireless element is (for example：311～316) change pattern in accordance with identical AFC.This example can be used as that " frequency hopping is virtual The exemplary embodiment in area ", it will be explained in more detail.

In general, the concept of VFC and AFC is applicable to the cellular operation of any unauthorized such as：3GPP Following cellular operation of 5G in unlicensed spectrum of LAA, unauthorized LTE or any.According to one Exemplary embodiment, VFC can first be set to operate in unauthorized passage, subsequently all with this virtual area phase The UE of association will carry out radio communication using first unauthorized passage.Afterwards, virtual area can be by again Set to operate in different unauthorized passages, and all UE being associated with this virtual area will use This different unauthorized passage carries out radio communication.The change of unauthorized passage can be by eNB or any network Control unit triggers, and the carrier frequency of VFC is changed to second from first unauthorized passage and does not award Power passage.

Then, frequency hopping virtual area operation will be further described.The virtual fauna of frequency hopping is with each wirelessly little The VFC in frequency hop sequences is operated based on area.Frequency hop sequences can be the default frequency hopping assigned by base station Sequence or dynamically can be determined according to instant network disturbance regime by base station.This is different from conventional wireless unit Part, its frequency hopping operation is to be occurred based on each element, rather than based on each cell.Traditionally, Wireless area as LTE system cell is to be set at the static frequency range that frequency hopping will not occur.Here discloses In, because cell can cover at least one base station and several element, multiple UE can grasp from one simultaneously Working frequency jumps to another.

Therefore, because frequency hopping virtual area is a VFC operating in different frequency passage according to frequency hop sequences, VFC will carry out frequency agility by way of changing carrier frequency according to the sequence setting.For example, jump Frequency sequence is set as that the VFC of [f1f3f2f4] operates in carrier frequency f1 when period 1, grasps during period 2 Make in carrier frequency f3, operate in carrier frequency f2 during period 3, during period 4, operate in carrier frequency f4, Wherein f1, f2, f3, f4 are the carrier frequency of different passages in unlicensed spectrum；Period 1, the period 2, Period 3, period 4 can be evenly distributed or unequal distribution.According to an exemplary embodiment, when period 5 Carrier frequency can be recalled to f1 and be repeated identical sequence, [f1f3f2f4].Or, frequency hop sequences can be for once Property, therefore carrier frequency will not convert, until being received from base station by another control signal information Another group of frequency hop sequences sending.

In general, UE is by receiving the control signal information acquisition virtual area frequency hopping sequence sending from base station Row are (such as：[f1f3f2f4]).Or, but UE itself stores this kind of sequence, does not therefore need control signal Information.Virtual area frequency hop sequences are (such as：[f1f3f2f4]) operating frequency in unlicensed spectrum can be passed through, Control passage outside its frequency range is setting.For example, in LTE-LAA operation, control passage is typically made For the Pcell using authorised channel.Under unlicensed frequency operation Scell operable as aforesaid Frequency hopping virtual area.

In an exemplary embodiment, base station can be set not by authorizing Pcell to transmit control signal information Authorize frequency range VFC, its using as the unauthorized Scell in unauthorized frequency range so that data transfer uses. For example, LTE eNB can transmit control information to one group of UE operating in identical frequency hopping VFC by Pcell, To set this kind of unauthorized Scell as frequency hopping virtual area.This control information includes but is not limited to frequency hopping sequence Row.Using the temporary transient identification code of specific radio net (radio network temporary identifier, RNTI), this control information can pass through entity downlink control channel (the physical downlink control of Pcell Channel, PDCCH) transmission.RNTI is embedded in the identification code of PDCCH, all control information Target UE can receive this control signal letter in the way of the blind decoding by PDCCH obtains RNTI Breath.With this practice, all it is used identical RNTI can be in same unauthorized as the UE of identification code Scell, executes same frequency hop sequences.

Except above-mentioned control signal information, base station can transmit other trigger with unauthorized Scell proceeds by data transfer.For example, base station can by the frequency range outside unauthorized Scell (such as：Make With authorizing frequency spectrum through Pcell), transmission trigger is to trigger frequency hopping operation.Similarly, change or release jump Frequency operation is also required to other control signal.

Described frequency hopping unauthorized area can have several advantages.The one of which advantage in this frequency hopping unauthorized area Improve for system effectiveness increases with frequency diversity.By executing frequency hopping, Scell can be by jumping in each The mode of individual frequency, it is to avoid base station cannot detect immediately or unknown interference occurs.

UE in frequency hopping unauthorized area can be by the symbol of the frequency sub-band for each setting for the scheduling or each setting Unit or time slot carry out potential ascending transmission.However, the actual ascending transmission meeting of each LTE-LAA UE Depend on first listening the result passing trial afterwards, it will it is illustrated in further detail.

The present invention proposes passage perception scheduling mechanism for frequency hopping virtual area.The passage of frequency hopping VFC being proposed One of purpose of perception scheduling, is to deposit to relax the hiding Wi-Fi in concealed terminal such as unauthorized frequency range Take the relevant issues of point (access point, AP).In order to enter row of channels perception scheduling, base station can be by no Kind of thread elements scheduling uploads in different time slots, and time slot can be determined as making the no line element of these schedulings by base station Part has the time slot of least interference.However, before actually row transmits, being in response to potential interference, each Wireless element can carry out the drive sweep of different passages before scheduling time slot.If special modality detects capable and experienced Disturb, this detects strongly disturbing special modality and ascending transmission will not occur.It that case, no line element Part can select different passages to transmit.The passage perception scheduling mechanism of frequency hopping virtual area is also applicable in descending Data transfer.

Operate such as VFC it is assumed that it operates in does not award it is assumed that setting base station 301 with reference to as a example Fig. 3 Passage (CH) 1 in power frequency spectrum or passage 2 or passage 4.Base station 301 can the communication of scheduling upstream or downstream With avoid other unauthorized frequency ranges radio (for example：LTE-UL 321,322,323) interference that causes. Therefore, when VFC operates in passage 1 or passage 4, near the LTE-UL 322 operating in passage 2 MS 316 can be by scheduling to be communicated.Similarly, when VFC operates in passage 1 or passage 2, MS 313 or MS 314 can be by scheduling to be communicated.When VFC operates in passage 2 or passage 4, MS 311 or MS 312 can be by scheduling to be communicated.

In general, the present invention proposes to carry out radio communication in unlicensed spectrum, in data transfer Before, wireless UE may need by executing potentially useful multichannel drive sweep, idle logical to carry out Road assessment or carrier sense.As shown in figure 1, many passages may be had in unlicensed spectrum to be led to by different Letter system uses.Therefore, wireless element need to execute the carrier sense of multiple unauthorized passages and select wherein One to transmit data.This kind of operation can by VFC concept realize, wherein wireless UE can connect to VFC.In general, VFC can be associated with or map to one or more unauthorized passages.This wireless UE Can thus perceive multiple passages in unlicensed spectrum and select an available channel, with logical by selection Road transmits (such as：AFC by being associated with the passage selecting).

In an exemplary embodiment, the present invention proposes to carry out using above-mentioned virtual frequency area concept The network planning of LTE-LAA and radio resources allocation are as follows.As shown in figure 1, due to may have many Potential unauthorized passage, the network planning therefore being carried out based on each passage may become complicated. In order to carry out assignment channel with the complexity of lower grade and carry out the network planning, service supplier can be according to VFC Set unauthorized LTE-LAA base station, this VFC is associated with one group of real unauthorized passage.

For example, it is contemplated that a kind of situation, the 1st base station sets one or more VFC, and VFC is in unauthorized It is used as three different passages using three kinds of different carrier frequencies f1, f2, f3 in frequency spectrum.Similarly, Assume the 3rd base station, the 5th base station and the 7th base station be also set to using identical passage f1, F2 and f3.In addition, it is assumed that the 2nd base station, the 4th base station and the 6th base station are set as Using three kinds of different carrier frequencies f4, f5 and f6 in unlicensed spectrum.In other words, base Platform 2 can set VFC and map to AFC#4 by using carrier frequency f4 in unauthorized Scell, AFC#5 By using carrier frequency f5 in unauthorized Scell, AFC#6 is by using the load in unauthorized Scell Wave frequency rate, f6.In the case, network can plan a kind of setting, avoids base using different group of frequencies Platform 2 is interfered with each other with base station 3.By this mode, even if base station 2 may with base station 3 Closely, as long as selecting the passage transmission of different (group) just can avoid interference.Phase for data communication Close operation, base station 1, base station 3, base station 5 and base station 7 can candidate collection f1, f2, And in f3, select a passage, make them not result in severe jamming to each other.When base station 1 selects f2 Carry out data transfer, base station 1 can set VFC and map to AFC#2, it is the AFC of carrier frequency f2.

Fig. 4 illustrates the operation of frequency hopping according to the present invention one exemplary embodiment.It is assumed that base station in this example Set up a carrier aggregation mechanism, it including but not limited to operates in Pcell in unlicensed spectrum and at least One Scell, i.e. Scell 1, Scell 2, Scell 3 and Scell 4.Every Scell is all set with VFC, And every VFC can map to multiple AFC.Base station in this example for LTE eNB and can be able to set Other VFC in fixed multiple Scell, the passage as the LTE-LAA of operation in unlicensed spectrum is jumped Frequency area.Assume there are 4 passages, that is, passage 1, passage 2, passage 3 and passage 4 are in unauthorized frequency In the middle of spectrum.

In time t1, base station can obtain the metric data related to level of interference or can obtain this 4 lead to In road, whether each passage can be used to the metric data transmitting.This metric data can be by directly executing carrier wave sense Know or receive the measuring reports of the UE in these passages to obtain.Obtain the measurement number of these passages According to rear, in time t2, base station can distinctly set frequency hop sequences for this 4 passage.Passage frequency hop sequences Can be transmitted by Pcell by the control signal information being embedded in PDCCH.By searching PDCCH RNTI in blind decoding, UE can pass through control signal information acquisition frequency hop sequences.

Scell can be set frequency hop sequences, is unique for specific Scell.This sequence is specified Frequency hopping VFC of Scell 1 can time t2 use passage 3, time t3 use passage 4 and when Between t4 use passage 1.In the same manner, the frequency hop sequences of Scell 2 are [2,1,3], the frequency hop sequences of Scell 3 Frequency hop sequences for [4,3,2] and Scell 4 are [1,2,4].This represent time t2, time t3, And during time t4, a passage can be using different Scell.

After time t4, in one embodiment, identical frequency hop sequences can be repeated.This represents, in the time (not shown) when t5, time t6 and time t7, the frequency hop sequences of Scell 1 would is that [3,4,1]. In addition, frequency hop sequences can be disposable, this represents unless received another frequency hop sequences, otherwise Scell 1 will not carry out frequency hopping.Will benefit from diversity gain using the Scell of carried frequency hop sequences, such as pass through When averaging out different time points, the interference of different unauthorized passages.

Fig. 5 is shown in radio communication unlicensed spectrum according to one embodiment of the invention from the angle of base station Method.In step S501, base station is set up or is operated in mandate frequency spectrum using as primary service area (Pcell).In step S502, base station sets up the second service area (Scell) being covered in unlicensed spectrum, And the operation of this second service area is using as virtual frequency area (VFC).In step S503, base station meeting Set frequency hop sequences to use for virtual frequency area, the carrier frequency in this virtual frequency area will be according to frequency hop sequences Convert at any time.In step S504, the jump that base station can be set in step S503 by Pcell transmission Frequency sequence is to Scell.In step S505, base station will control Scell to operate according to frequency hop sequences.

In an exemplary embodiment, frequency hop sequences may include：In the first period, operation is in unauthorized frequency Under first carrier frequency in the middle of spectrum；In the second period after and then the first period, operation is not Authorize under the second carrier frequency in the middle of frequency spectrum；And in the 3rd period after and then the second period, Operation is under the 3rd carrier frequency in the middle of unlicensed spectrum.

In an exemplary embodiment, frequency hop sequences can preset according to current level of interference or dynamically set Fixed.Frequency hop sequences can be set to repeat or disposable.

In an exemplary embodiment, VFC can be mapped to multiple actual frequency areas (AFCs).VFC has Unique VFC ID, and each AFC has the AFC ID of uniqueness.

In an exemplary embodiment, Scell is controlled to be may relate to using change VFC according to frequency hop sequences operation Mapping relations between ID and multiple AFC IDs, control Scell to change Scell's according to frequency hop sequences Operating frequency.When AFC changes during each frequency hopping, VFC can remain unchanged.

In an exemplary embodiment, transmission frequency hop sequences to Scell may relate to transmission and include frequency hop sequences Control signal information is to Scell.Control signal information can utilize the temporary transient identification code of specific radio net (RNTI), transmitted by the entity downlink control channel (PDCCH) of Pcell.

In an exemplary embodiment, set the frequency hop sequences in VFC and may relate to execution in unlicensed spectrum The carrier sense of central multiple carrier waves；And react on the load of carrier wave in the middle of unlicensed spectrum for the execution Ripple senses, and sets frequency hop sequences.Base station can be by not making the frequency hopping sequence of its frequency hop sequences and neighbouring Scell Show the overlapping mode of passage, to set frequency hop sequences.

In an exemplary embodiment, base station can transmit another control signal information to be turned on and off controlling Scell operates according to frequency hop sequences.

Fig. 6 is shown in unlicensed spectrum wirelessly from the angle of user's equipment according to one embodiment of the invention The method of communication.In step s 601, UE can authorize frequency spectrum to be linked to Pcell.In step S602 In, UE can be linked to Scell in unlicensed spectrum.The order of step S601 and step S602 can be right Adjust.In step S603, UE receives control signal information by Pcell and operates the void in Scell Quefrency area.In step s 604, UE receives the frequency hop sequences in virtual frequency area by Pcell.In step In rapid S605, UE operates in virtual frequency area thus according to frequency hop sequences.

In an exemplary embodiment, frequency hop sequences will include：In the first period, operation is in unauthorized frequency Under first carrier frequency in the middle of spectrum；In the second period after and then the first period, operation is not Authorize under the second carrier frequency in the middle of frequency spectrum；And in the 3rd period after and then the second period, Operation is under the 3rd carrier frequency in the middle of unlicensed spectrum.UE can receive frequency hop sequences to operate repeatedly Or once receive all of sequence.

In an exemplary embodiment, VFC can be mapped to multiple actual frequency areas (AFCs).VFC has Unique VFC ID, and each AFC has the AFC ID of uniqueness.

In an exemplary embodiment, be may relate to based on the virtual frequency of change in VFC according to frequency hop sequences operation Mapping relations between rate area identification code and multiple actual frequency areas identification code, according to frequency hop sequences in virtual frequency Operate in rate area.When AFC changes during each frequency hopping, VFC can remain unchanged.

In an exemplary embodiment, the frequency hop sequences receiving VFC from control signal information may relate to basis The specific temporary transient identification code of radio net (RNTI), by the entity downlink control channel of Pcell

(PDCCH) receiving control signal information.

In an exemplary embodiment, before uplink, UE can perform multiple in the middle of unlicensed spectrum The carrier sense of carrier wave, after the channel clearance assessment of the carrier wave in the middle of execution unlicensed spectrum, UE meeting Spendable carrier frequency is selected to be uploaded in the middle of unlicensed spectrum.

In an exemplary embodiment, UE can receive another control signal information to be turned on and off controlling Operated according to frequency hop sequences in VFC.

Fig. 7 illustrates the functional block diagram of base station according to the present invention one exemplary embodiment.Example base station 700 Including but not limited to be coupled to the processing unit 701 of RF transceiver 702, backhaul transceiver 703 and Storage medium 704.RF transceiver 702 comprises conveyer and the receiver being adjusted to authorize frequency spectrum.As can Option, RF transceiver 702 also can comprise extra assembly with unlicensed spectrum transmission and reception.Return Journey transceiver be for communicate with other base station or with the little base station operating in base station 700 region Communication.Backhaul transceiver can be used to communicate with the little base station as Scell.Storage medium 704 can store, But it is not limited to, the mapping relations between VFC and AFC, such as among VFC IDs and AFC IDs Definite mapping, and aforesaid channel number.Storage medium can be fast hard disk, hard disk, or any The storage hard disk temporarily storing and permanently storing can be provided.

Processing unit 701 is set to execute some functions, and this little function and Fig. 5 description are in unauthorized Frequency spectrum carries out the method for radio communication and above-described embodiment is relevant.The function of processing unit 701 can be by using One or more programmable units, to add as microprocessor, microcontroller, dsp chip, FPGA etc. To realize.The function of processing unit 701 also can be realized by other electronic component or IC, and processing unit 701 function can be realized using hardware or software field.

Fig. 8 is according to the functional block diagram of the present invention one exemplary embodiment person's of being shown with equipment.Example UE 800 processing units 801 being including but not limited to coupled to RF transceiver 802, Wi-Fi transceiver 803, And storage medium 804.RF transceiver 802 comprises conveyer and receiver, conveyer and receiver quilt It is adjusted to authorize frequency spectrum to carry out the communication with base station and other UE.UE can be included in unlicensed spectrum and leads to The hardware transceiver of credit, such as Wi-Fi transceiver 803.Storage medium 704 storage medium 704 can store, But it is not limited to, in the mapping relations between VFC and AFC as among VFC IDs and AFC IDs Definite mapping, and aforesaid channel number.Storage medium can be fast hard disk, hard disk, or any can The storage hard disk temporarily storing and permanently storing is provided.

Processing unit 801 is set to execute some functions, and these functions and Fig. 6 description are in unauthorized Frequency spectrum carries out the method for radio communication and above-described embodiment is relevant.The function of processing unit 801 can be by using One or more programmable units, to add as microprocessor, microcontroller, dsp chip, FPGA etc. To realize.The function of processing unit 801 also can be realized by individual other electronic component or IC, and processing unit 801 function can be realized using hardware or software field.

In sum, the present invention is suitably employed in wireless communication system, and enable cordless communication network is with logical Cross and realize frequency hopping virtual frequency area to utilize mandate frequency spectrum and unlicensed spectrum, thus reduce and disturbing and increase Plus network efficiency.

Unless there are being expressly recited, otherwise in the detailed description of embodiment disclosed herein, element, Action or instruction be not construed as definitely crucial or necessary.Meanwhile, as used herein, each word " " And " one " can comprise multiple projects.If only referring to one, term " single " or similar language can be used Speech.Additionally, table arranges the term " any " of multiple projects and/or multiple project below, as used herein, It is intended to including " any ", " any combination of ", " any number of " and/or " any project Any number of any combinations " and/or " project kind ", individually or with sundry item and/or other kinds Intermediate item is used together.Additionally, as used herein, term " group " is intended to including any amount of project, Comprise zero.Additionally, as used herein, term " number " is intended to, including any number, comprise zero.

Finally it should be noted that：Various embodiments above is only in order to illustrating technical scheme rather than right It limits；Although being described in detail to the present invention with reference to foregoing embodiments, this area common Technical staff should be understood：It still can be modified to the technical scheme described in foregoing embodiments, Or equivalent is carried out to wherein some or all of technical characteristic；And these modifications or replacement, and Do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.

Claims (17)

1. a kind of wireless communications method in a unlicensed spectrum is it is adaptable to a base station, methods described bag Include：

Set up a primary service area in a mandate frequency spectrum；

Set up a service area in described unlicensed spectrum using as a virtual frequency area；

Configure frequency hop sequences in described virtual frequency area；

Described frequency hop sequences are transmitted to described service area by described primary service area；And

Control described service area operation according to described frequency hop sequences.

2. method according to claim 1, wherein said frequency hop sequences include：

In one first period, operation is under the first carrier frequency in the middle of described unlicensed spectrum；

In one second period after and then described first period, operation is in the middle of described unlicensed spectrum One second carrier frequency under；And

In one the 3rd period after and then described second period, operation is in the middle of described unlicensed spectrum One the 3rd carrier frequency under.

3. method according to claim 2, wherein said virtual frequency area is mapped to multiple true Frequency zones, described virtual frequency area has the virtual frequency area identification code of a uniqueness, and each described true frequency Rate area has the actual frequency area identification code of a uniqueness.

4. method according to claim 3, wherein controls described service according to described frequency hop sequences Area's operation includes：

Closed using changing the mapping that described virtual frequency area identification code is with the plurality of actual frequency area identification code System, controls described service area to change the operating frequency of described service area according to described frequency hop sequences.

5. method according to claim 4, wherein said virtual frequency area remains unchanged, described true Real frequency area changes with each frequency hopping.

6. method according to claim 1, wherein transmits described frequency hop sequences to described service area Including：

Transmission includes a control signal information of described frequency hop sequences to described service area, wherein said control Signal message system processed utilizes the temporary transient identification code of a specific radio net, by the one of described primary service area Entity downlink control channel is being transmitted.

7. method according to claim 1, wherein configures the described frequency hopping sequence in described virtual frequency area Row include：

The carrier sense of multiple carrier waves in the middle of described unlicensed spectrum for the execution；And

React on the carrier sense of more described carrier wave in the middle of described unlicensed spectrum for the execution, configuration is described Frequency hop sequences.

8. method according to claim 1, also includes：

Transmit another control signal information to be turned on and off controlling described service area according to described frequency hopping sequence Row operation.

9. a kind of wireless communications method in a unlicensed spectrum is it is adaptable to user's equipment, described side Method includes：

It is linked to a primary service area in a mandate frequency spectrum；

It is linked to a service area in described unlicensed spectrum；

One control signal information is received by described primary service area and operates the void in described service area Quefrency area；

Frequency hop sequences in described virtual frequency area are received from described control signal information；And

Operated in described virtual frequency area according to described frequency hop sequences.

10. method according to claim 9, wherein said frequency hop sequences include：

In one first period, operation is under the first carrier frequency in the middle of described unlicensed spectrum；

In one second period after and then described first period, operation is in the middle of described unlicensed spectrum One second carrier frequency under；And

In one the 3rd period after and then described second period, operation is in the middle of described unlicensed spectrum One the 3rd carrier frequency under.

11. methods according to claim 10, wherein said virtual frequency area is mapped to multiple true Real frequency area, described virtual frequency area has the virtual frequency area identification code of a uniqueness, and each described true Frequency zones have the actual frequency area identification code of a uniqueness.

12. methods according to claim 11, wherein operate in described void according to described frequency hop sequences Quefrency area includes：

According to described virtual frequency area identification code and the mapping relations of the plurality of actual frequency area identification code Change and to be operated in described virtual frequency area according to described frequency hop sequences.

13. methods according to claim 12, wherein said virtual frequency area remains unchanged, described Actual frequency area changes with each frequency hopping.

14. methods according to claim 9, receive described wherein from described control signal information The described frequency hop sequences in virtual frequency area include：

According to the temporary transient identification code of a specific radio net, descending by an entity of described primary service area Control passage is receiving described control signal information.

15. methods according to claim 9, also include：

The carrier sense of multiple carrier waves in the middle of described unlicensed spectrum for the execution；And

After the channel clearance assessment of the plurality of carrier wave executing in the middle of described unlicensed spectrum, in institute State and in the middle of unlicensed spectrum, select a spendable carrier frequency.

16. methods according to claim 9, also include：

Receive another control signal information to be operated described according to described frequency hop sequences to be turned on and off controlling In virtual frequency area.

A kind of 17. user's equipment, including:

One wireless transceiver；And

One processor, is coupled to described wireless transceiver, and at least in order to：

Authorize in frequency spectrum one, connected to a primary service area by described wireless transceiver；

In a unlicensed spectrum, connected to a service area by described wireless transceiver；

Receive a control signal information with described wireless transceiver by described primary service area to operate described One virtual frequency area of secondary service area；

Receive frequency hop sequences in described virtual frequency area with described wireless transceiver from control signal information； And

Operated in described virtual frequency area according to described frequency hop sequences.