CN103875187B - Exempting to authorize/share the frequency hopping in frequency band - Google Patents

Exempting to authorize/share the frequency hopping in frequency band Download PDF

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Publication number
CN103875187B
CN103875187B CN201280035829.4A CN201280035829A CN103875187B CN 103875187 B CN103875187 B CN 103875187B CN 201280035829 A CN201280035829 A CN 201280035829A CN 103875187 B CN103875187 B CN 103875187B
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channel
exempt
authorization channel
hopping
authorization
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CN103875187A (en
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G·沙比特
陈滔
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Zyray Wireless Inc
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Zyray Wireless Inc
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Priority claimed from GB1109289.7A external-priority patent/GB2486926B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7143—Arrangements for generation of hop patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/715—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0012—Hopping in multicarrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

RRC signaling is used at frequency hopping channel collection W={w iin exempt from for user device configuration NGe Fu community SCell, wherein i=1 on authorization channel w, 2 .., N.Main plot PCell sends and exempts from authorization channel w across carrier dispatching to dispatch i-th ion frequency hopping FH Resource Block h i.Authorization channel w is exempted from based on what receive from least subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for frequency hopping.FH Resource Block comprises M Physical Resource Block, and these Physical Resource Block are at FH time interval T u*L+jperiod is dispatched for SCell by the resource grant sent on the PDCCH of PCell.In one embodiment, RRC signaling is sent on PCell by micro-access node/HeNB, also sent on PCell by micro-access point/HeNB, and PCell is positioned at LTE authorized frequency bands across carrier dispatching.

Description

Exempting to authorize/share the frequency hopping in frequency band
Technical field
Embodiment relates generally to wireless communication system, method, equipment and computer program and relates more specifically to the frequency hopping in unauthorized wireless electricity frequency spectrum/frequency band.
Background technology
The following abbreviation that can find in specification and/or accompanying drawing is defined as follows:
3GPP third generation partner program
AP access point
BCCH broadcast channel
CA carrier aggregation
CC component carrier
CQI channel quality information
DCA dynamic channel allocation
DCH dynamic frequency hopping
DL down link
E-UTRAN evolved universal terrestrial radio access network
FH frequency hopping
HARQ hybrid automatic repeat-request
HeNB family eNB
IEEE Institute of Electrical and Electronics Engineers
ISM industry, science, medical science
L1 layer 1
LTE Long Term Evolution (E0-UTRAN)
LTE-A Long Term Evolution-senior
MAC media interviews control
OFDM OFDM
PCFICH physical control format indicator channel
PCH paging channel
PDCCH physical downlink control channel
PHICH physics HARQ indicator channel
PRB Physical Resource Block
PUCCH physical uplink control channel
PCell main plot
P-SCH primary synchronization channel
PHY physics
RRC radio resource controls
The auxiliary community of SCell
The semi-static degree of SPS
SRS detection reference signal
SS search volume
S-SCH auxiliary synchronization channel
STA stands
TDM time division multiplexing
TVBD television band equipment
The white space of TVWS TV
UE subscriber equipment
UL up link
WLAN WLAN (wireless local area network)
WiFi Wireless Fidelity (IEEE802.11)
In 3GPPLTE system, will have heterogeneous network, this heterogeneous network is operated with slight eNB with family eNB, micro-eNB by the grand eNB of tradition and forms in identical frequency spectrum.Figure 1A illustrates such isomerous environment, and in this isomerous environment, UE20, in following position operation, can communicate with grand eNB22 at this position UE20 and also communicate with family eNB26.Also additional Microcell and/or picocell can be there is in same area.No matter whether micro-eNB and slight eNB is embodied as the remote radio heads under grand eNB controls, and such heterogeneous wireless electric network all has challenging interference scene.Alleviating this interference is that [see document RP-100383, title is NEWWORKITEMPROPOSAL:ENHANCEDICICFORNON0CABASEDDEPLOYMENT SOFHETEROGENEOUSNETWORKSFORLTE for job in 3GPP now; RAN#47; Vienna, Austria16-19March2010].In brief, should consider more early issuing the technology that uses in (issuing 8/9) and the backward compatibility for the terminal of issue 8/9 and the impact that minimizes physical-layer air interfaces should be ensured.
Also had such heterogeneous network to from authorized frequency bands to " shunting " business in unlicensed frequency band to help prevent the research of the traffic bottleneck in classical authorization frequency band.Unlicensed spectrum has some appellations, such as licensing free frequency band and shared frequency band, and exemplarily comprises that to be called as the white space of TV and ISM frequency band (be 2.4GHz under IEEE801.11b and 802.11g; And be 5GHz under 802.11a) frequency spectrum.May because equipment is in the non-cellular systems that coexists, such as WiFi(IEEE802.11), Zigbee(IEEE802.15), operation and disturbing in licensing free frequency band in bluetooth and USB wireless system.
If communication can be made moderately reliable, LTE cellular services is attractive to the shunting of licensing free frequency band, because it provides the bandwidth of increase.For this reason, LTEeNB can be used on licensing free frequency band, set up LTE connection to keep the control of the business based on honeycomb to shunting.But still need certain solution for being minimized in LTEeNB and the interference between its device transmission and any cellular device in licensing free frequency band, although the fact coordinates with non-cellular systems may be impossible on this licensing free frequency band.
Equally, the future of LTE is disposed and can such as see document RP-091440 with the carrier aggregation CA(helping alleviate interference by comprising, and title is: CARRIERAGGREGATIONFORLTE, 3GPPRAN#46; Sanya, China; 1-4December2009).
Figure 1B diagram is used for the CA concept of the summary of LTE/LTE-A.For given UE, the PCell(of appointment is had alternatively to be called principal component carrier wave or PCC), this PCell exemplarily issues 8/9UE backward compatibility (therefore bandwidth is 20MHz) with LTE.This identical UE also can concentrate in its appointment to be had SCell#1, SCell#2 and SCell#3(and is alternatively called auxiliary component carrier SCC), wherein in order to complete, SCell#3 is illustratively shown in frequency discontinuous with other CC.As with grand eNB22 coordinate, can be active for the SCell of any number of this UE in any given time or be active without any SCell in them.The PCell making it be assigned always enlivens by each UE20, and therefore will assign a backward compatibility CC(such as its PCell to traditional UE) and without its CC.11(LTE-A is issued for 3GPP) estimate the ability of the cross scheduling of You Kua community/CC and also estimate that different districts/CC can have different UL/DL and configure.
In some are disposed, the grand eNB22 of Figure 1A can operate on PCell and one or more SCell, and the HeNB26 of Figure 1A operates on different SCell, as interference mitigation scheme.Another program in IEEE802.11af allows various equipment contact TVWS database to determine main system (i.e. TV broadcast), then to depend in Carrier Sense Multiple Access/conflict avoidance (CSMA/CA) mechanism to avoid WiFi inter-system interference [such as to see document IEEE802.11-0089r0, title is 11AFCOEXISTENCEASSURANCEDOCUMENT, byCiscoSystemsandResearchInMotion, 19January2011].
Although these may be effective and in fact can combinationally use with following instruction in some cases, but in the art it is desirable that shunt the method for business as follows on licensing free frequency band, which enable authorisation network/eNB maintain to shunting business certain control and also suitably can ensure that the business by shunting will be reliably transmitted or receive on licensing free frequency band, although network is not to the control of this frequency band.
Summary of the invention
In a first embodiment, have a kind of device for using when controlling access node, this device comprises treatment system, and treatment system such as comprises at least one processor and stores the memory of computer instruction set.In this embodiment, treatment system is arranged to: utilize radio resource control signaling with at frequency hopping channel collection W={w iin exempt from authorization channel w iupper is user device configuration NGe Fu community, wherein i=1,2 .., N(N be at least equal one integer); Utilize on main plot across carrier dispatching with on the auxiliary community of at least one in NGe Fu community dispatch i-th exempt from authorization channel w ion frequency-hopping resource block h i; And exempt from authorization channel w based on what receive from least subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for frequency hopping.
In a second embodiment, have a kind of method controlling access node, the method comprises: utilize radio resource control signaling with at frequency hopping channel collection W={w iin exempt from authorization channel w iupper is user device configuration NGe Fu community, wherein i=1,2 .., N, wherein N be at least equal one integer; Utilize on main plot across carrier dispatching with on the auxiliary community of at least one in NGe Fu community dispatch i-th exempt from authorization channel w ion frequency-hopping resource block h i; And exempt from authorization channel w based on what receive from least subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for frequency hopping.
In the third embodiment, a kind of computer software being adapted to be the method for execution second embodiment is had.
In the fourth embodiment, have a kind of computer-readable memory of store sets of instructions, when by for when when controlling access node, the device that uses performs, this instruction set impels this device: utilize radio resource control signaling with at frequency hopping channel collection W={w iin exempt from authorization channel w iupper is user device configuration NGe Fu community, wherein i=1,2 .., N(N be at least equal one integer); Utilize the leap ripple on main plot to dispatch and exempt from authorization channel w so that the auxiliary community of at least one in NGe Fu community to dispatch i-th ion frequency hopping FH Resource Block h i; And exempt from authorization channel w based on what receive from least subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for frequency hopping.
In the 5th embodiment, there is a kind of device substantially as described with reference to the accompanying drawings here.
In the sixth embodiment, there is a kind of computer program comprising non-transient computer-readable recording medium, this non-transient computer-readable recording medium has the computer-readable instruction stored thereon, and computer-readable instruction can be performed by computerized equipment with the method impelling computerized equipment to perform the second embodiment.
More multiple features and embodiment become clear by the description from the preferred embodiment provided by means of only example referring to accompanying drawing.
Accompanying drawing explanation
Figure 1A illustrates heterogeneous network, and in this heterogeneous network, UE is in the region that grand eNB and family eNB covers, and this heterogeneous network is the environment that wherein advantageously can realize embodiment.
Figure 1B is the schematic frequency figure that carrier aggregation system is shown, in carrier aggregation system, some component carriers drop on some component carriers in authorized frequency bands and drop in unlicensed frequency band.
Fig. 1 C is the schematic diagram of frequency-hopping mode under discussion for detection reference signal SRS aperiodic, but indivedual frequency hoppings that wherein each transmission is followed in pattern only send when receiving independent SRS and triggering.
Fig. 2 is logical flow chart, and this flow chart diagram is according to the operation of the method for embodiment and the result by the computer program instruction set on the present computer-readable memory of device perform bulk.
Fig. 3 A is hopping pattern, has to exempt from authorization channel and the time interval along trunnion axis along vertical axes, in licensing free frequency band, wherein have K=11 channel and all channels altogether all to be used in the pattern across L=11 the time interval.
Fig. 3 B is similar to Fig. 3 A, but wherein L=5 and the only N=5 channel amounted in K=11 channel are for frequency-hopping mode.
Fig. 4 is schematic diagram, illustrates according to cross scheduling on the SCell of PDCCH in licensing free frequency band that the PCell in authorized frequency bands sends.
Fig. 5 is schematic diagram, is shown in the difference between isolated component carrier wave and expansion component carrier.
The simplified block diagram of the higher network node that Fig. 6 is UE, family eNB associates with it with grand eNB, the exemplary electronic device used when these UE, eNB and network node are and are adapted at realizing embodiment.
Embodiment
Be different from the isolation component carrier and CSMA/CA technology pointed out in above background technology chapters and sections, the embodiment of these instructions alleviates interference by frequency hopping.Certainly, frequency hopping can also be used except CC isolation and/or CSMA/CA.Following example is in the unrestricted background of LTE system, and as wherein by describing in detail, the flexibility of LTE transmission frequency of utilization is to minimize the interference to the WiFi system coexisted on licensing free frequency band.The parameter of this transmission can be optimized based on the measurement of the WiFi system that coexists.
Used frequency hopping, comprised Conceptions, such as had the dynamic channel allocation (DCA) of FH mode adaptation and dynamic frequency hopping in cellular band in gsm system; wherein use FH and revise utilized frequency-hopping mode based on fast frequency mass measurement and (such as see by ZoranKostic at a slow speed; IvanaMaric and XiaodongWang is at IEEEJournalonSelectedAreasinCommunications; vol.19, No.11; The FUNDAMENTALSOFDYNAMICFREQUENCYHOPPINGINCELLULARSYSTEMS that November2001 delivers).
In wlan system (IEEE802.11 series), have FH on a physical layer, wherein for FH object, whole ISM frequency band division is become the frequency hopping channel of 1MHz, each frequency hopping channel has the fixing Hopping time of 0.4 second.In this system during frequency hopping, frequency hopping process is limited to every channel hopping no longer than 224 μ s.This 802.11FH scheme does not use any selectivity or intelligent frequency-hopping.Such as see that FrequencyHoppingSpreadSpectrum (FHSS) vs.DirectSequenceSpreadSpectrum (DSSS) inBroadbandWirelessAccess (BWA) andWirelessLAN (WLAN) bySorinM.Schwartz(is shown in http:www//sorin-schwartz.com/white_papers/fhvsds.pdf, but undatedly finally to be accessed on April 29th, 2011).
Following example summarizes the FH being used for LTE system, and this LTE system uses CA mechanism to be configured on licensing free frequency band by the LTE resource on authorized frequency bands, and these CA mechanism exceed any specification for GSMFH or WLANFH certainly.
Considering the timeslot-based FH of prior art, such as issuing the FH for providing frequency diversity for PUCCH specified in 8 at 3GPP.Frequency hopping occurs at the band edge about centre frequency symmetry.In addition, (see document Rl-110699, title is: ONFREQUENCYHOPPINGFORAPERIODICSRSTRANSMISSIONbyTexasInst ruments just to issue discussion in 10 at 3GPP now for the FH transmitted detection reference signal aperiodic (SRS); RANWG1#64; 21-25Feb2011), and two kinds of some diverse ways be considered.First, according to as preassigned pattern frequency hopping shown in Fig. 1 C during LTE equipment SRS transmission, this derives from issue 8/9 hopping.Contrary with issue 8/9 hopping scheme, each frequency hopping is triggered the activation by the independent SRS transported in independent PDCCH.Whenever receiving triggering, LTE equipment jumps to next portions of bandwidth determined by frequency-hopping mode.In second method, LTE equipment is based on the single trigger detection frequency hopping bandwidth for the multi-slot duration.These FH technology are only applicable to concrete PUCCH or the SRS signaling in LTE and do not consider the FH mechanism for setting up FHLTE system in any licensing free frequency band.
As the general introduction in the background with the LTE system that HeNB disposes, embodiment comprises as setting up procedure shown in Fig. 2, the setting up procedure for the LTEFH system in licensing free frequency band that this setting up procedure is used for, wherein LTE frequency band (mandate) resource is used to arrange initial FHLTE system configuration, and is used to carry out undated parameter based on the WiFi measurement on licensing free frequency band.Reasonably hypothesis is used in HeNB licensing free frequency band with local local low-power LTE transmission and will minimizes operating in other WiFi access point (routine is called AP traditionally) various that identical licensing free frequency band operates and WiFi stands the interference of (routine be called non-APSTA traditionally or referred to as STA).Grand eNB broadly may disturb AP and STA in its cell range, wherein suppose the UL transmission that the DL transmission of its its high power broad range receives from mobile device with it.Another hypothesis is authorized for the LTE(of PCell) frequency band and for SCell licensing free frequency band may phase crossing over frequency be not adjacent, the mobile device that this means to have CA ability will need two receive and dispatch chain (namely DL receiver/UL transmitter for PCell with a DL receiver/UL transmitter for SCell).
Fig. 2 lists the emphasis of this setting up procedure.At block 202, HeNB(or be more generally micro-access point) via RRC signaling (authorized frequency bands) to mobile device configuration WiFi channel (or more generally for exempting from authorization channel) w ion N number of SCell, this channel w iat FH channel set W={w iin, wherein i=1,2 .., N.In this case, FH channel set size N<=K, wherein K is the WiFi channel number in licensing free frequency band.In this description, each variable i, j, u, L, N and K are positive integer separately.
Once configuration mobile device/UE has been configured the N number of SCell exempting to authorize, then at block 204, micro-eNB(is also referred to as family eNB or referred to as HeNB) use PCell(authorized frequency bands) on across carrier dispatching with on the auxiliary community of at least one in NGe Fu community dispatch (FH Resource Block collection H={h i) FH Resource Block h i, this FH Resource Block comprise by PDCCH DL permit and UL license dispatch at i-th WiFi channel w iat FH time interval T on (licensing free frequency band) u*L+jperiod is for the FH Resource Block h of SCell#i i=M Physical Resource Block (PRB).In this case, L≤K is the FH time interval number of every FH pattern, and u indicates u FH pattern, and jth the FH time interval of j instruction in FH pattern.The grand eNB controlling authorized frequency bands (PCell) can distribute the DL signaling that some transmission opportunity will carry out for it in authorized frequency bands/PCell, as represented in block 202 and 204 to HeNB.Following example utilizes term HeNB and without loss of generality more specifically.
The advantage had across carrier dispatching be in the SCell on licensing free frequency band in the non-data area of LTE subframe not transmit layer 1(L1) control signal (this control signal comprises physical control format indicator (PCFICH), PDCCH and physics HARQ indicator channel (PHICH)).This minimizes the interference to WiFi system wherein.
Initially, HeNB arranges N number of SCell and M PRB.Two changes are considered in example shown below; Namely as N=K and each SCell takies a WiFi channel shown in Fig. 3 A; And as N≤K and each SCell takies one or more WiFi channel shown in Fig. 3 B.
Can be designated as sfx by RRC signaling for block 204, FH fixed time interval in addition, and sfx is multiple LTE subframe or LTE radio frame.In HeNB can according to DL and the UL business of equipment on SCell at FH time interval T across carrier dispatching device u*L+jin all subframes in or in DL and the UL resource of the SCell#i of the sub-centralized dispatching of subframe in FHWiFi channel.FH channel set W also can be multiplied by FH fixed time interval at FH L*sfx(L setup time) in activate and/or deexcitation and reconfiguring via RRC signaling.
FH Resource Block H can use dynamic scheduler via MAC signaling scheduling by HeNB.Although issue in 10 at LTE and only can use semi-persistent scheduling on PCell, but when in issuing in the future, it is also allowed on SCell, with the MAC signaling scheduling FH Resource Block H that also can realize via HeNB by semi-persistent scheduling compared with dynamic dispatching.
Continue at Fig. 2, optimization can be measured by HeNB based on the WiFi of mobile device on SCell in block 206, FH parameter.Such as FH parameter can be optimised as follows:
◆ some WiFi channels w can be got rid of from FH channel set W k(i.e. W={w i} i ≠ kin w i), this means the WiFi channel w in FH channel set inumber can become the WiFi channel number (N<K) be less than in licensing free frequency band.This can come in two ways:
I. FH channel set W is upgraded by HeNB for all mobile device explicitlies configured on SCell.This can occur in the case where there, wherein has the strong beacon signal from WiFiAP near certain, and these beacon signals are detected by many mobile devices and are reported to HeNB via RRC signaling or via certain CQI mechanism of MAC signaling;
Ii. based on the surveyingpin based on WiFi beacon of some mobile device, certain WiFi channel w is implicitly forbidden to these mobile devices by HeNB iuse.
◆ WiFi channel w can be dispatched iin the larger LTE bandwidth on SCell:
If i. detect from WiFiAP weak beacon signal or beacon signal from WiFiAP do not detected, or
If the ack/nack ii. based on the DL data to shunting has good link-quality, as reported in the mobile device in RRC_ connection status.The DL data of this shunting are sent to mobile device on the PDSCH of SCell by HeNB.Therefore, h i=6,7 .., 110 PRB, supposing can at WiFi channel w imiddle use reaches the LTE channel width of 20MHz.
Fig. 3 A and 3B provides the example embodiment that above FH arranges mechanism, and wherein often row represents difference and exempts from authorization channel w i, and often row represent different FH time interval T u.These supposition are at the IEEEWiFi802.11b network in ism bands of united states (us), and this ISM frequency band has the WiFi channel number 1-11 of 11 5MHz in centre frequency 2.412-2.462GHz.Be configured with N number of SCell and each community takies fixing 5MHzWiFi channel, wherein to FH Resource Block h ithe PRB number (M) distributed is 25 PRB nearly.
Fig. 3 A represents wherein N(FH channel set size) be less than the channel number of K(in licensing free frequency band) situation.Row are divided into two groups L the FH time interval by Fig. 3 A, wherein by the FH time interval number of every for L(FH pattern) be arranged in WiFi total number of channels (i.e. L=K=11 supposes the above-indicated 11 channel ISM frequency bands based on US) available on ISM frequency band.In a L=11 FH time interval 302 of every FH pattern, the WiFi channel set with size N=7 is W={w 1, w 2, w 4, w 6, w 8, w 9, w 11, as within those L=11 FH time intervals 302 by shown in shaded block.Respectively at FH time interval T 1, T 11, T 3, T 5, T 2, T 9, T 8in at FH Resource Block collection H={h 1, h 2, h 4, h 6, h 8, h 9, h 11upper data dispatching, as shown in the word in the shaded block of 302 parts of Fig. 3 A.This is a FH pattern.
In addition, in a 2nd L=11 FH time interval 304, the WiFi channel set with size N=8 is W={w 1, w 2, w 4, w 6, w 8, w 9, w 10, w 11, as shown in the shaded block within those the 2nd L=11 FH time intervals 304.Similarly, respectively at FH time interval T 12=T k+1, T 22=T k+11, T 20=T k+9, T 16=T k+5, T 13=T k+2, T 14=T k+3, T 18=T k+7, T 19=T k+8in at FH Resource Block collection H={h 1, h 2, h 4, h 6, h 8, h 9, h 10, h 11upper data dispatching, as shown in the word in the shaded block of 304 parts of Fig. 3 A.This is the 2nd FH pattern.
In the example of Fig. 3 A, not at FH Resource Block hi and FH fixed time interval T u*L+jbetween mapping.This makes FH pattern specific to HeNB to minimize the presence of intercell interference between the DL transmission of adjacent HeNB on SCell.Suppose UL license implicitly based on DL license, under FH pattern is the specific situation of HeNB, the equipment room interference between the mobile device being attached to different adjacent HeNB also will be minimized.
Note at reference number 310, in first N number of FH time interval HeNB at T3 at WiFi channel w 4middle scheduling FH Resource Block h 4, then at reference number 311, at T in a 2nd K FH time interval k+9middle scheduling it.This is the measurement report of the HeNB as pointed out about Fig. 2 based on mobile device gets rid of some WiFi channels example from channel set.
In addition, at reference number 320, HeNB at T 5in at WiFi channel w 6middle scheduling FH Resource Block h 6, and the PRB in a 2nd K FH time interval compares in reference number 321 at the T in a K time interval 16=T k+5in more.Relatively larger PRB number is indicated by larger more dark shared region, and is that eNB as described about Fig. 2 optimizes the example of FH by the SCell in WiFi channel using more large bandwidth.
The alternative example that present consideration FHLTE is in figure 3b arranged, this example also supposes the IEEEWiFi802.11 network in ism bands at US in figure 3 a.N=5 SCell is configured with for Fig. 3 B, and each community takies a 5MHzWiFi channel or multiple 5MHzWiFi channel.Therefore, SCell#1, SCell#2, SCell#3, SCell#4 and SCell#5 take a 5MHzWiFi channel, four 5MHzWiFi channels, two 5MHzWiFi channels, two 5MHzWiFi channels and two 5MHzWiFi channels respectively, as shown in the vertical axes along Fig. 3 B.For SCell#1, SCell#2, SCell#3, SCell#4 and SCell#5 to FH Resource Block h ithe PRB number (M) distributed reaches 25 PRB, 100 PRB, 50 PRB, 50 PRB and 50 PRB respectively, and exempting from authorization channel because each has nearly 25 PRB.
Row are divided into four groups L the FH time interval by Fig. 3 B, wherein by the FH time interval number of every for L(FH pattern) be arranged to 5, the FH time interval that therefore Fig. 5 B represents wherein every pattern is less than WiFi total number of channels K(5=L<K=11 available on ISM frequency band) situation.In the L FH time interval representated by reference number 352, sized by WiFi channel set, N=5(has 5 SCell, although be configured multiple WiFi channel to some SCell) and FH channel set W={w 1, w 2, w 3, w 4, w 5.As at Fig. 3 B be shown in corresponding FH time interval T 1, T 2, T 3, T 4, T 5in at FH Resource Block collection H={h 1, h 2, h 3, h 4, h 5upper data dispatching.
In addition, in the 2nd L FH time interval representated by reference number 354, N=3 sized by WiFi channel set and comprise W={w 1, w 2, w 4, and at corresponding FH time interval T 6=T l+1, T 10=T l+5, T 9=T l+4in at FH Resource Block collection H={h 1, h 2, h 4upper data dispatching, as shown in Fig. 3 B.
Similarly illustrated for the the the 3rd (356) and the 4th (358) L FH time interval at Fig. 3 B.For the 3rd L FH time interval representated by reference number 356, N=4 sized by WiFi channel set and FH channel set W={w 1, w 2, w 3, w 4, and at corresponding FH time interval T 11=T 2L+1, T 13=T 2L+3, T 14=T 2L+4, T 12=T 2L+2in at FH Resource Block collection H={h 1, h 2, h 3, h 4upper data dispatching.For the 4th L FH time interval representated by reference number 358, N=5 sized by WiFi channel set and FH channel set W={w 1, w 2, w 3, w 4, w 5, and at corresponding FH time interval T 16=T 3L+1, T 18=T 3L+3, T 17=T 3L+2, T 20=T 3L+5, T 19=T 3L+4in at FH Resource Block collection H={h 1, h 2, h 3, h 4, h 5upper data dispatching.
In the example of Fig. 3 B, also not at FH Resource Block hi and FH fixed time interval T u*L+jbetween mapping because FH pattern can specific to HeNB be minimized on given SCell adjacent HeNB DL transmission between presence of intercell interference.Suppose UL license implicitly based on DL license, also will be minimized based on the equipment room interference of these FH patterns between the mobile device being attached to different adjacent HeNB.Notice that label 360 illustrates the T of HeNB in a L FH time interval 352 2at WiFi channel w 2middle scheduling FH Resource Block h 2, then as shown in reference number 361, the T of HeNB in a 2nd L FH time interval 354 l+5in (and the T in addition in a 3rd L FH time interval 356 13and the T also in a 4th L FH time interval 358 18in) dispatch it.This illustrates that HeNB can get rid of some channels from FH channel set W, thus the channel number N in FH channel set is less than the total number of channels K in licensing free frequency band.
In addition at Fig. 3 B, reference number 370 illustrates the T of HeNB in a L FH time interval 352 4in at WiFi channel w 4middle scheduling FH Resource Block h 4, and PRB is more than the T in a 2nd L time interval 354 9=T l+4in reference number 371.This larger PRB number is represented as relatively larger dark shaded areas.This illustrates the larger LTE bandwidth on the SCell that can dispatch in WiFi channel, if such as uncontested beacon (or only weak beacon) is present in region, if or as above to mention about Fig. 2 have good WiFi link-quality.
In order to simplify, above Fig. 3 A-B and the WiFi channel that LTE carrier wave is mapped on the licensing free frequency band of 2.4GHz via FH is only shown.If suppose LTE FDD SCell, then DLSCellCC and ULSCellCC is mapped to independent WiFi channel by needing.If those exempt from authorization channel in ism bands, then needs are at least separated 40MHz by them; If they are in TVWS frequency band, then they only need non-intersect (non-adjacent in frequency).
In the U.S., at 5GHz(802.11a) ISM frequency band have and allow to the channel number 36-64 of 140MHz bandwidth.This is the abundant bandwidth of both DLCC and ULCC for the FHLTE system had for summarizing in the above examples.Such as, if ULCC is mapped to channel number 36-50 and DLCC is mapped to channel number 51-64 and has available bandwidth 50MHz respectively separately by hypothesis, then the abundant surplus for the 40MHz frequency gap between UL and DLCC is had.
In the U.S., TVWS frequency band have the channel 14-36 of respective bandwidth 138MHz and 84MHz and (470-608MHz) and 38-51(614-698MHz) on.This also allows abundant available bandwidth and allows the 40MHz frequency gap between UL and DLCC.
If replace hypothesis LTE TDD SCell, there is TDDUL-DL sub-frame configuration identical with in SCell (and hypothesis half-duplex mobile device) in PCell, then needs are had the frequency gap of the about 40MHz between DL and UL to allow more available bandwidths in SCellCC.In this case, being separated between DL and UL is completed in time division multiplexing tdm mode.As summarized in the above examples, as a rule, to have total available bandwidth be 55MHz(channel 1-11) 2.4GHz ISM frequency band in SCellCC, there is DL and UL for FHLTE system and suppose that TDD parameter should be enough.
But CC different wherein specific TDD configuration is when being used to PCell and having the SCell of full duplex equipment, if also hypothesis allows to transmit simultaneously and receives (namely PCell subframe in dl direction and corresponding SCell subframe in the ul direction or on the contrary), then will the frequency gap that be about 40MHz of needs between PCellCC and SCellCC.Suppose that PCell is on another (such as honeycomb/mandate) frequency band, this is still allowed for total available bandwidth 55MHz of SCell.
Provide now the further details of the block 206 of Fig. 2, this block is pointed out to optimize FH parameter based on the measurement report received from mobile device.Because mobile device communicates on LTEPCell with WiFiSCell, so suppose that they are equipped with LTE modulator-demodulator and WiFi modulator-demodulator to be rational, and HeNB knows that mobile device has WiFi modulator-demodulator, as indicated via high-level signaling between the access periods of initial LTE community.WiFi modulator-demodulator can be used to detect the WiFi beacon frame transmitted by neighbouring WiFi access point AP.It is also rational for supposing that two modulator-demodulators can access common storage address space in mobile device with the measurement allowing LTE modulator-demodulator and read based on WiFi beacon.
Owing to using across carrier dispatching, so PCFICH, PDCCH or PHICH of not sending on SCell as noted above; Those channels are on PCell and for dispatching UL and the DL radio resource on SCell.This allows to send this area when not having data to dispatch on PDSCH at PDSCH and is called almost blank DL subframe.But almost blank subframe is carried reference signal and is also carried synchronous, paging in some cases or system information never carries any clean culture DL user data.They are used as interference mitigation technique; HeNB sends its almost blank subframe according to known mode, and in those times, and grand eNB can dispatch it and operate in subscriber equipment in the region of HeNB, and excess interference from HeNB do not felt by this subscriber equipment.As following further analysis, HeNB also needs in middle six PRB, to send other L1 signaling, such as primary/secondary synchronizing channel (P/S-SCH), broadcast channel (BCCH) and paging channel (PCH) in SCell has some to affect to support independent SCell on WiFi.
It is by selecting or cancel to select which WiFi channel w that HeNB can optimize one of mode of FH parameter iwill in WiFi channel set W.A little WiFi channel w can be got rid of from FH channel set W k; Such as briefly mentioned in discussing at the above block 206 about Fig. 2, HeNB can get rid of W={w i} i ≠ kin w i.This allows the optimization of FH mode time parameter.As discussed with reference to the block 206 of Fig. 2, HeNB can change the WiFi channel w in FH channel set in Quasi dynamic ground in two ways inumber:
If ◆ explicitly utilize HeNB for all devices that configures on SCell upgrade FH channel set W(such as have multiple equipment by detect and report near the strong beacon signal of WiFiAP; Report like this to HeNB can via RRC signaling or via the MAC signaling of CQI measurement report being suitable for this purpose);
◆ implicitly utilize HeNB to forbid some WiFi channels w based on the measurement based on WiFi beacon of some equipment for these equipment iuse.These equipment know that they can not receive any DL or UL and permit and the DL subframe therefore skipped for these WiFi channels and UL subframe (namely they can enter sleep pattern during the FH fixed time interval corresponding with the WiFi channel forbidden) on corresponding SCell.
This mode based on WiFi beacon is active method, because it allows eNB based on certain WiFi beacon signal intensity level threshold detected (such as without beacon; Weak beacon; And strong beacon scope) change to for WiFi channel (w i) FH Resource Block (h i) number (M) of PRB that distributes.In these WiFi measure, estimate that certain delay is rational; Suppose the typical beacon interval of 100 chronomeres or 0.1s, some beacon transmissions may be needed to be used for measuring.Add some other RRC signaling delays for reporting that those are measured to HeNB, total delay that WiFi measures is level about second to cause HeNB to receive.
Use clean channel estimating/energy measuring (CCA/ED) or clean channel estimating/detection of preamble (CCA/PD) algorithm (or its certain combination) in licensing free frequency band, utilize LTE modulator-demodulator for reducing an embodiment of this delay on one's own initiative.Such as can any place in physical layer convergence protocol (plcp) frame or for execution CCA/ED in any frame type (control, management, data) of this content.It is leading that the detection of CCA/PD algorithm sends when PLCP frame starts.
Also note when introducing the block 206 of Fig. 2 the SCell in WiFi channel to dispatch larger LTE bandwidth.This value that can change M by HeNB has been come, and M is to FH Resource Block h ithe number of the PRB assigned.At WiFi channel w iin SCell on to FH Resource Block h ithe value of M the PRB assigned can be dispatched to allow to optimize FH mode frequency parameter in two ways by HeNB:
◆ when its WiFi modulator-demodulator of equipment use detect only have from the weak beacon signal of WiFiAP or without beacon signal.Then equipment can store for WiFi channel w in the shared local storage in equipment ithe measurement based on WiFi beacon, the LTE modulator-demodulator of equipment can access this memory in case to HeNB report measure.
If ◆ based on having good link quality to the ack/nack of the DL data of equipment transmission by HeNB to what shunt on the PDSCH of SCell.Such Ack/Nack when equipment is in RRC_ connection status by device report.
Above Ack/Nack mode is more passive because it based on on a specific frequency transmit corresponding ACK/NACK message in the past.HeNB can lead threshold value (such as bad channel quality based on certain Ack/Nack; Average channel quality; And good channel quality) change to WiFi channel (w i) FH Resource Block (h i) the PRB number (M) that distributes.Ack/Nack mode is faster, because it is without the need to WiFi measurement report, the WiFi transfer delay therefore avoiding above metering.In addition, Ack/Nack technology only needs to use WiFi modulator-demodulator in a device, and this saves the power of battery because by only on licensing free frequency band SCell initial setting up during need WiFi modulator-demodulator to be used for finding any adjacent WiFiAP.
Block 202, HeNB referring now to Fig. 2 configures mobile device for SCell by using PCell resource in licensing free frequency band, and these PCell resources also can be used for the frequency hopping activated as in the example above.LTE equipment is attached to authorizes at LTE() PCell on frequency band, the RRC signaling therefore issuing UE by HeNB on PCell can be used for configuring the following: for component carrier and the cross scheduling device parameter of SCell; For the FH parameter configuration of SCell; And across the activation of carrier dispatching to start frequency hopping.
Fig. 4 is the schematic diagram of cross scheduling, and how this schematic diagram diagram is from the resource PCell distribution SCell.First the exclusive specific search volume (SS) of the SCell of the configuration in PCell resource is had.Then mobile device receives DL and the UL license of their resource on PCell from HeNB via the PDCCH for specific mobile device, this resource is positioned at SCell, and they find this PDCCH for specific mobile device in its specific search volume.
Traditional LTE(for CA issues 10), 3GPPTS36.213v10.1.0(2011 March) statement receives PHICH from the community (or CC) identical with being used for sending community that UL permits.This means when using across carrier dispatching, without PHICH on SCell.If mobile device/UE receives PDCCH, this PDCCH license drops on the UL resource be positioned on SCell, and the DLCC#x of this PDCCH on the PCell of UE sends, then the CC#x from PCell after some subframes is mapped to PHICH by UE and network.PCFICH is also upper in the community (or CC) identical with PDCCH to be sent.
Therefore, in the conventional practice across carrier dispatching situation, do not have to send in the non-data area of the LTE subframe of L1 control signal (PCFICH, PDCCH, PHICH) on SCell.Because the rule issued in 8 system bandwidths at LTE in 1-3 OFDM symbol before indicated by the PCFICH on PCell interweaves, non-data area takies all PRB in this case.Be adapted to LTE and issue 10CA mechanism, may be used for transfer of data to 13 OFDM symbol in LTE subframe, wherein suppose that only (use) OFDM symbol is used for L1 control signal.
In an embodiment of these instructions, L1 signaling also will be used to synchronously, for system information with for paging on licensing free frequency band.HeNB may need to transmit other L1 signaling in six, the centre PRB in SCell, such as advocate peace auxiliary synchronization channel (P/S-SCH), broadcast channel (BCCH) and paging channel (PCH) to support independent SCell; That is, support to have the ability to operate in CA, but be that not there is the mobile LTE equipment operated in the CA of expansion carrier wave (without control channel region and only carry the CC of data channel).Referring to Fig. 5, expansion CC is different from independent CC.
LTE transmission power in six, centre PRB in licensing free frequency band (i.e. TVWS frequency band or ISM frequency band) must to avoid interference the WiFi transmission of miscellaneous equipment in the through-put power of regulation.Because eNBL1 signaling is in relatively little bandwidth (namely 6 PRB cross over about 1MHz) by the transmission of middle six PRB, so remarkable interference can not be caused on the WiFi channel using relative more Iarge-scale system bandwidth (be namely 22MHz for 802.11b and be 20MHz for 802.11a).
Can be connected by release RRC or avoid such L1 signaling by use expansion carrier wave, but these are regarded as not as keeping L1 signaling more to cater to the need.Can such as such as by connecting for all devices release RRC during " hurrying " WiFi community detected by the device measuring on SCell.But this radio bearer that release is set up and all radio resources, and (rationally) supposes may there be many AP in SCell overlay area, and all SCellCC on " hurrying " WiFi channel must be released.Fig. 5 is shown in the difference between independent CC and expansion CC.Expand CC as shown therein and only comprise data, due to synchronous requirement, suppose that non-adjacent (or large) LTE frequency band is used for PCell and licensing free frequency band is used for SCell.Just the opposite, Independent Carrier Wave really has control channel region 502, therefore can carry main broadcast channel PBCH504 and synchronous (P-SCH/S-SCH) 506.In addition, independent CC can use its control channel region 502 to support mobility and can send public reference signal CRS to mobile device, and the mobility on expansion carrier wave must depend on another CC and do not exchange CRS in expansion carrier wave.This means if SCell is independent CC, then can support issue 8/9/10 equipment without CA ability on licensing free frequency band, but if SCell is expansion carrier wave, then cannot support.
Consider may there be measurement clearance in the LTESCell on unlicensed frequency band in advance without some.The WiFi completed in the DL subframe of SCell is measured, some interference carrying out the L1 signaling that free HeNB sends in middle six PRB can be estimated, because HeNB sends such L1 signaling continuously on middle six PRB.Arrange in the stage in initial LTE system, this is not problem because not yet set up SCell, and equipment can perform on licensing free frequency band WiFi measure because HeNB on PCell via those equipment of RRC signal deployment.
After initial setup phase, if HeNB needs to measure from the WiFi on SCell of subscriber equipment, then HeNB can Quasi dynamic ground adaptive FH time and frequency parameter (explicitly or implicitly, as described in detail in the above block 206 about Fig. 2).But still need a solution for preventing such interference.For this reason, HeNB via RRC signaling to the new blank DL subframe (namely HeNB stops sending data or signaling) on Equipments Setting SCell to allow the measurement based on WiFi beacon undertaken by the WiFi modulator-demodulator in subscriber equipment, and can not have the interference from HeNB self transmission.This " blank " subframe concept can be regarded as mourning in silence, as a kind of presence of intercell interference administrative skill depended on from physics (PHY) channel of different districts or the Time Division Multiplexing of signal of coordination between (grand and micro-) eNB transmits.Such as see document R1-094231, title is TIMESYNCHRONIZATIONREQUIREMENTSFORDIFFERENTLTE-ATECHNINQ UES, and author is QualcommEurope (3GPPTSG-RANWG1#58bis; Miyazaki, Japan; 12-16October2009).
Some problems in problem involved in above " blank " subframe concept be on subscriber equipment in for switching and the impact of conventional terminal measurement of channel estimating.For only supporting that on licensing free frequency band LTE issues the situation of 11 and later subscriber equipment, " blank " subframe will not have legacy user terminals problem.For the situation also supporting issue 8/9/10 terminal, in the middle of LTEHeNB, six PRB interference may need or may not need to be solved clearly on the impact that equipment WiFi measures.Such as in practice, interference may seriously to being enough to ensure clear and definite alleviating; WiFi signal sends, therefore from the part that the interference of six PRB transmission (namely at about more than 1MHz) in centre of HeNB only partly disturbs WiFi in a frequency domain to measure in relatively more Iarge-scale system bandwidth (be namely 22MHz for 802.11b and be 20MHz for 802.11a).May be that the remainder of WiFi signal is enough to allow equipment editor measurement report in this case, this measurement report be comprehensively to being enough to allow appropriate its FH parameter adaptive of HeNB.
Measure for the WiFi performed in the DL subframe of SCell, if any UL that HeNB does not dispatch for SCell permits that this is enough, this produces measurement clearance by the SCellUL subframe on licensing free frequency band for WiFi measures.Therefore in this case, HeNB only need consider this point when distributing their UL and DL resource to equipment, and performs specific action to avoid measurement clearance without the need to UE.
By using above technology, can be minimized via frequency flexibility/frequency hopping from LTE system to the interference WiFi system or be alleviated in addition exempting to authorize on shared frequency band.Obvious advantage be also based on subscriber equipment exempt to authorize the WiFi measurement in (sharing) frequency band via across carrier dispatching on this shared frequency band to equipment flexible allocation resource.
Therefore, in order to summarize some details in above details and example and example, there is a kind of method or comprise the device for the treatment of system, such as, this treatment system has at least one processor and stores the memory of computer instruction set, and the memory of at least one processor and storage computer instruction set is configured to impel device to complete following operation.
As summarized in the block 202,204 and 206 of the Fig. 2 in the viewpoint from HeNB: utilize radio resource control RRC signaling with at frequency hopping FH channel set W={w iin exempt from authorization channel w iupper is user device configuration NGe Fu community SCell, wherein i=1,2 .., N and N be at least equal one integer; And utilize on the PCell of main plot across carrier dispatching with at least one SCell in N number of SCell dispatch i-th exempt from authorization channel w ion frequency hopping FH Resource Block h i; And exempt from authorization channel w based on what receive from least subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for frequency hopping.
Further details is added, above detailed description frequency-hopping resource block h to those generalized concepts icomprise M Physical Resource Block PRB, these PRB are in Hopping time interval T u*L+jperiod is permitted by the down-chain resource sent on the physical downlink control channel PDCCH of main plot PCell and uplink resource license is dispatched for (at least one) auxiliary community SCell, wherein M be at least equal one integer, u mark is used for a pattern of frequency hopping, and jth the Hopping time interval of j instruction in pattern.
In one embodiment, by HeNB(or be more generally micro-access node) send in the RRC signaling exempting from authorization channel/licensing free frequency band configures NGe Fu community on the PCell of main plot, cross over carrier dispatching also to be sent on the PCell of main plot by HeNB, and main plot PCell is positioned at authorized frequency bands.
In another embodiment that can combine with any embodiment in above embodiment, have altogether K exempt from authorization channel, it is resolved into the frequency hopping channel collection that size is N; And in addition for the situation of N=K, each SCell only takies and exempts from authorization channel w ione of; And for the situation of N<K, at least one SCell takies and exempts from authorization channel w iin more than onely exempt from authorization channel.
In another embodiment, RRC signaling also comprises the instruction of Hopping time interval T, and this Hopping time interval T is the integral multiple of subframe or the radio frame used in the PCell of main plot.
But can without the need in more another embodiments again of combining with above embodiment, what receive from least subscriber equipment exempts from authorization channel w iin at least some measurement of exempting from authorization channel comprise the measurement report received via radio resource control signaling, and by whether indicating weak beacon, strong beacon based on the measurement report received or changing to i-th FH Resource Block h without beacon ithe PRB number M distributed carrys out the adaptive parameter for frequency hopping.Or what in an alternative embodiment, receive from least subscriber equipment exempts from authorization channel w iin at least some measurement of exempting from authorization channel comprise via exempting from authorization channel w iin at least some exempt from authorization channel receive ack/nack, and by change to i-th FH Resource Block h ithe PRB number M distributed carrys out the adaptive parameter for frequency hopping, and this change whether indicates bad channel quality, good channel quality or average channel quality based on the ratio of ack/nack received.
In another embodiment will be combined with any embodiment in above two embodiments immediately, upgrade frequency hopping channel collection W={w by all subscriber equipment explicitlies for configuring on (at least one) auxiliary community iin exempt from authorization channel w i, change frequency hopping channel collection W={w iin exempt from authorization channel w inumber carrys out the adaptive parameter for frequency hopping.This is useful in the situation being described to be received for multiple report above, and these report instructions are from the strong beacon of another access point.This point alternative in, by no longer exempting from authorization channel w at i-th iupper for dispatching user facility up link or down link license, implicitly forbid i-th for subscriber equipment and exempt from authorization channel w i, change frequency hopping channel collection W={w iin exempt from authorization channel w inumber carrys out the adaptive parameter for frequency hopping.This is reported in i-th for subscriber equipment and exempts from authorization channel w being specified as above ion the situation of strong beacon be useful.
Referring now to Fig. 6, the various electronic equipment used when this figure is for illustrating and being adapted at realizing embodiment and the simplified block diagram of device.In figure 6, grand eNB22 is adapted to be and is communicated with device, such as mobile terminal or UE20 by authorized frequency bands wireless link 21.Although above example is in the background of lte-a system, eNB22 can be any access node (comprising frequency selectivity relay station) of any wireless network, such as LTE, LTE-A, GSM, GERAN, WCDMA etc.Carrier network (eNB22 is the part of this carrier network) also can comprise to be provided and network control unit, such as Mobility Management Entity MME and/or the gateway SGW24 of the connection of other network (such as common exchanging telephone network PSTN and/or data communication network/internet) or radio network controller RNC.
Normal DL business for UE is initially transmitted to grand eNB22, but according to these embodiments, at least some business in this business by grand eNB22 be diverted to HeNB26 for via the final wireless delivery of licensing free frequency band to UE20.UL business from UE20 is similarly divided to licensing free frequency band, and UE sends this UL business to HeNB26 instead of send this UL business to grand eNB22 on LTE authorized frequency bands on licensing free frequency band.Just HeNB26 be UE20 configure SCell community and (authorized frequency bands) PCell upper to UE20 transmission cross scheduling (licensing free frequency band) SCell resource.Although be not specifically not closely related with the embodiment described in detail here especially, but in some implementations, according to other network connection of HeNB and/or the destination of this business, this UL business also or can not be transmitted to grand eNB22 from HeNB26, and/or some the DL business in the possible DL business being shunting directly can transmit to HeNB26 and not first by grand eNB22.
UE20 comprise processing unit, such as at least one data processor (DP) 20A, storage device, at least one computer-readable memory (MEM) 20B such as storing at least one computer program (PROG) 20C or other executable instruction set, communicator, such as via the transmitter TX20D of one or more antenna 20F and eNodeB22 two-way wireless communication and receiver RX20E.As noted above, if UE20 has two transmission and receive chain, respectively there are a transmission and receive chain for authorizing and licensing free frequency band, then favourable, because business is shunted, but under the control that UE20 remains on grand eNB22 (and because may some business be still held on authorized frequency bands), but in order to illustrate clear, TX20D and RX20E be only shown.Also there is another block 20G, present two LTE modulator-demodulator as described in detail above and WiFi modulator-demodulator and the shared storage for recording and report measurement report.
ENB22 also comprises processing unit, such as at least one data processor (DP) 22A, storage device, such as stores at least one computer-readable memory (MEM) 22B of at least one computer program (PROG) 22C or other executable instruction set, and communicator, such as via the transmitter TX22D of one or more antenna 22F and UE20 two-way wireless communication and receiver RX22E.If implement eNB22 in the lte networks to shunt to family eNB, then eNB22 stores its rule/process shunted to family eNB at block 22G, and also may can at least follow the tracks of by the number of services shunted by grand eNB22, therefore it can continue or interrupting service shunting when changing network condition as described in detail here on authorized frequency bands.
Similar to eNB22, but usually with the transmit power levels reduced in a large number (to 2 watts on for HeNB being such as, comparison is low about 5 watts for grand eNB) operation, HeNB26 also comprises processing unit, such as at least one data processor (DP) 26A, storage device, such as store at least one computer-readable memory (MEM) 26B of at least one computer program (PROG) 26C or other executable instruction set, and communicator, such as via one or more antenna 26F exempt from authorization channel with the transmitter TX26D of UE20 two-way wireless communication and receiver RX26E.HeNB26 performs SCell as described in detail above and arranges rule/process, and as differently describe in the embodiment above for from license PCell in the cross scheduling rule of exempting to authorize cross scheduling on SCell.Also there are the control between eNB22 and MME/S-GW24 and data link 25, and the additional control link 27 between eNB22 and HeNB26 can be had.
Although do not illustrate especially for eNB22 or HeNB26, those equipment are also assumed to be and comprise modulator-demodulator and/or the chipset part as their radio communication device, and this modulator-demodulator and/or chipset or can not to be built on the RF front-end chip in those equipment 22,26 and to utilize cross scheduling rule to operate according to these embodiments yet.
At least one PROG in PROG20C in UE20 is assumed to be and comprises program instruction set, and this program instruction set makes equipment operate according to embodiment as described in detail above when being performed by the DP20A associated.ENB22 and HeNB26 also makes some aspect of these instructions of implement software be stored in their corresponding MEM22B, 26B.Embodiment can be implemented by the computer software be stored on MEM20B, 22B, 26B at least in part, this computer software can be performed by the DP20A of UE20, and/or performed by DP22A, 26A of eNB22 and HeNB26 respectively, or embodiment can be implemented by hardware or by the combination of the software and hardware (and firmware of tangible storage) of tangible storage.The electronic equipment implementing these aspects is without the need to being complete device as described at Fig. 5 or can being one or more parts of these equipment, software, hardware, firmware and the DP or SOC (system on a chip) SOC than tangible storage as described above or application-specific integrated circuit ASIC.
Generally speaking, UE20 various embodiments can including, but not limited to have wireless communication ability personal portable digital device, include but not limited to cell phone, navigator, on knee/hand held/tablet computers, digital camera and musical instruments and internet appliance.
The various embodiments of computer-readable MEM20B, 22B, 26B comprise and are suitable for any data storage technology type of local technical environment, the memory devices including but not limited to based semiconductor, magnetic storage device and system, optical memory devices and system, read-only storage, detachable memory, disk storage, flash memory, DRAM, SRAM, EEPROM etc.The various embodiments of DP20A, 22A, 26A include but not limited to all-purpose computer, special-purpose computer, microprocessor, digital signal processor (DSP) and multi core processor.
Consider and describe above, can become apparent for various equivalent modifications to the various amendment of previous embodiment and adaptation.Although below describe embodiment in the background of LTE and lte-a system, as noted above, embodiment can use in other CA type wireless communication system various.
Above embodiment will be understood to illustrative example.More embodiments are conceived to.Can be used alone understanding any feature described about any one embodiment or combinationally use with the further feature described, and also can combinationally use with any combination of other embodiment any in one or more feature of other embodiment any in embodiment or embodiment.In addition, the above equivalent do not described and amendment can not departed from by using yet in the following claims the scope of the present invention that limits.

Claims (19)

1. the device for using when controlling access node, described device comprises treatment system, and described treatment system is arranged to:
Utilize radio resource control signaling with at frequency hopping channel collection W={w iin exempt from authorization channel w iupper is user device configuration NGe Fu community, wherein i=1,2 .., N, wherein N be at least equal one integer, each of described NGe Fu community takies the described channel w that number is one or more i, described channel w ibe equiband, and the described number of channel can be configured for each auxiliary community by access point;
Utilize on main plot across carrier dispatching with at least one the auxiliary community in described NGe Fu community dispatch i-th exempt from authorization channel w ion frequency-hopping resource block h i; And
Authorization channel w is exempted from described in receiving from least described subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for described frequency hopping.
2. device according to claim 1, wherein:
Described frequency-hopping resource block h icomprise M Physical Resource Block, described Physical Resource Block is in Hopping time interval T u*L+jperiod is permitted by the down-chain resource that sends on the physical downlink control channel PDCCH of described main plot and uplink resource is permitted to dispatch at least one auxiliary community described in described NGe Fu community, wherein M be at least equal one integer, u mark is used for a pattern of described frequency hopping, L is positive integer, and jth the Hopping time interval of j instruction in described pattern.
3. device according to claim 1, wherein for being sent by across carrier dispatching on described main plot by micro-access node at the described described radio resource control signaling exempting from authorization channel configures described NGe Fu community, and described main plot is positioned at authorized frequency bands.
4. device according to claim 1, wherein exists that to be resolved into size be that the K that amounts to of the frequency hopping channel collection of N exempts from authorization channel; And further
For the situation of N=K, described in each auxiliary community only takies, exempt from authorization channel w ione of; And
For the situation of N<K, described at least one auxiliary community takies, exempt from authorization channel w iin more than onely exempt from authorization channel.
5. device according to claim 1, wherein said radio resource control signaling also comprises the instruction to Hopping time interval T, and described Hopping time interval is the integral multiple of subframe or the radio frame used in described main plot.
6. device according to claim 1, at least one item wherein in the following:
Authorization channel w is exempted from described in receiving from least described subscriber equipment iin at least some measurement of exempting from authorization channel comprise the measurement report received via radio resource control signaling, and by indicating weak beacon, strong beacon based on received measurement report or changing to i-th frequency-hopping resource block h without beacon ithe Physical Resource Block number M distributed is used for the described parameter of described frequency hopping with adaptation; And
Authorization channel w is exempted from described in receiving from least described subscriber equipment iin at least some measurement of exempting from authorization channel comprise and exempt from authorization channel w via described iin at least some exempt from the ack/nack that authorization channel receives, and by indicating bad channel quality, good channel quality or average channel quality to change based on the ratio of received ack/nack to i-th frequency-hopping physical Resource Block h ithe Physical Resource Block number M distributed is used for the described parameter of described frequency hopping with adaptation.
7. device according to claim 6, wherein by frequency hopping channel collection W={w described in following operation change iin exempt from authorization channel w inumber come the adaptive described parameter for described frequency hopping:
For the situation receiving multiple report, described multiple report indicates the strong beacon from another access point, for all subscriber equipment explicitlies that at least one the auxiliary community in described NGe Fu community configures upgrade described frequency hopping channel collection W={w iin described in exempt from authorization channel w i.
8. device according to claim 6, wherein by frequency hopping channel collection W={w described in following operation change iin exempt from authorization channel w inumber come the adaptive described parameter for described frequency hopping:
I-th is reported in for described subscriber equipment and exempts from authorization channel w ion the situation of strong beacon, by not exempting from authorization channel w at described i-th iupper is that the license of described subscriber equipment further scheduling uplink or down link permit that implicitly forbidding described i-th for described subscriber equipment exempts from authorization channel w i.
9. device according to claim 1, wherein said device comprises micro-eNB, and described micro-eNB operates and operates on described NGe Fu community in WLAN (wireless local area network) wlan system in Long Term Evolution LTE system on described main plot.
10. the device according to arbitrary aforementioned claim, wherein said treatment system comprises at least one processor and stores the memory of computer instruction set.
11. 1 kinds of methods controlling access node, described method comprises:
Utilize radio resource control signaling with at frequency hopping channel collection W={w iin exempt from authorization channel w iupper is user device configuration NGe Fu community, wherein i=1,2 .., N, wherein N be at least equal one integer, each of described NGe Fu community takies the described channel w that number is one or more i, described channel w ibe equiband, and the described number of channel can be configured for each auxiliary community by access point;
Utilize on main plot across carrier dispatching with at least one the auxiliary community in described NGe Fu community dispatch i-th exempt from authorization channel w ion frequency-hopping resource block h i; And
Authorization channel w is exempted from described in receiving from least described subscriber equipment iin at least some exempt from authorization channel measurement come the adaptive parameter for described frequency hopping.
12. methods according to claim 11, wherein:
Described frequency-hopping resource block h icomprise M Physical Resource Block, described Physical Resource Block is in Hopping time interval T u*L+jperiod is permitted by the down-chain resource that sends on the physical downlink control channel PDCCH of described main plot and uplink resource is permitted to dispatch at least one auxiliary community described in described NGe Fu community, wherein M be at least equal one integer, u mark is used for a pattern of described frequency hopping, L is positive integer, and jth the Hopping time interval of j instruction in described pattern.
13. methods according to claim 11, wherein for being sent by across carrier dispatching by micro-access node at the described described radio resource control signaling exempting from authorization channel configures described NGe Fu community, and described main plot is positioned at authorized frequency bands.
14. methods according to claim 11, wherein exist that to be resolved into size be that the K that amounts to of the frequency hopping channel collection of N exempts from authorization channel; And further
For the situation of N=K, described in each auxiliary community only takies, exempt from authorization channel w ione of; And
For the situation of N<K, described at least one auxiliary community takies, exempt from authorization channel w iin more than onely exempt from authorization channel.
15. methods according to claim 11, wherein said radio resource control signaling also comprises the instruction to Hopping time interval T, and described Hopping time interval is the integral multiple of subframe or the radio frame used in described main plot.
16. methods according to claim 11, at least one item wherein in the following:
Authorization channel w is exempted from described in receiving from least described subscriber equipment iin at least some measurement of exempting from authorization channel comprise the measurement report received via radio resource control signaling, and by indicating weak beacon, strong beacon based on received measurement report or changing to i-th frequency-hopping resource block h without beacon ithe Physical Resource Block number M distributed is used for the described parameter of described frequency hopping with adaptation; And
Authorization channel w is exempted from described in receiving from least described subscriber equipment iin at least some measurement of exempting from authorization channel comprise and exempt from authorization channel w via described iin at least some exempt from the ack/nack that authorization channel receives, and by indicating bad channel quality, good channel quality or average channel quality to change based on the ratio of received ack/nack to i-th frequency-hopping physical Resource Block h ithe Physical Resource Block number M distributed is used for the described parameter of described frequency hopping with adaptation.
17. methods according to claim 16, wherein by frequency hopping channel collection W={w described in following operation change iin exempt from authorization channel w inumber come the adaptive described parameter for described frequency hopping:
For the situation receiving multiple report, described multiple report indicates the strong beacon from another access point, for all subscriber equipment explicitlies that at least one the auxiliary community in described NGe Fu community configures upgrade described frequency hopping channel collection W={w iin described in exempt from authorization channel w i.
18. methods according to claim 16, wherein by frequency hopping channel collection W={w described in following operation change iin exempt from authorization channel w inumber come the adaptive described parameter for described frequency hopping:
I-th is reported in for described subscriber equipment and exempts from authorization channel w ion the situation of strong beacon, by not exempting from authorization channel w at described i-th iupper is that the license of described subscriber equipment further scheduling uplink or down link permit that implicitly forbidding described i-th for described subscriber equipment exempts from authorization channel w i.
19. according to claim 11 to the method described in the arbitrary claim in 18, wherein said method is performed by micro-eNB, and described micro-eNB operates and operates on described NGe Fu community in WLAN (wireless local area network) wlan system in Long Term Evolution LTE system on described main plot.
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