CN106603210B - Dispatching method and device in a kind of narrow band transmission - Google Patents
Dispatching method and device in a kind of narrow band transmission Download PDFInfo
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- CN106603210B CN106603210B CN201510679320.9A CN201510679320A CN106603210B CN 106603210 B CN106603210 B CN 106603210B CN 201510679320 A CN201510679320 A CN 201510679320A CN 106603210 B CN106603210 B CN 106603210B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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Abstract
The invention discloses the dispatching methods and device in a kind of narrow band transmission.UE searches for target signaling on M searching resource.Wherein, described search resource is distributed in the time domain in N number of time window, and described search resource occupies the bandwidth of 1 PRB in each time window.Described search resource is combined by 16*N RE collection, and 16*N RE set is distributed in the bandwidth of occupied 1 PRB of searching resource in N number of time window.The RE that the RE set occupies occupies all N number of time windows of each searching resource in the time domain.N is positive integer, and is greater than 1.The present invention allows target signaling to continue to use the blind Detecting mode of traditional EPDCCH on this searching resource, reduces the complexity of realization by designing new searching resource.And by the way that RE set to be distributed on multiple time windows to obtain time diversity gain, and then increase systematic entirety energy.
Description
Technical field
The present invention relates to the transmission plans in wireless communication system, more particularly to based on long term evolution (LTE-Long
Term Evolution) narrow band communication control channel searching resource configuration and design method and apparatus.
Background technique
In 3GPP (3rd Generation Partner Project, third generation cooperative partner program) RAN (Radio
Access Network, wireless access network) in #69 plenary session, NB-IOT (NarrowBand Internet of Things, it is narrow
With Internet of Things) this project be Release 13 by 3GPP project verification new Work Item, and in RAN1#89bis meeting
Enter on.The technology will provide improved in-door covering, support a large amount of low traffic equipment, low latency sensitivity, ultralow
Equipment cost, the network architecture of low equipment power dissipation and optimization.The technology is divided into three scenes and discusses at present, is respectively as follows:
1. independent operation (Stand-alone operation): for example occupying current GERAN (GSM EDGE Radio
Access Network, GSM/EDGE wireless communication networks) bandwidth of system carries out narrow band communication, with substitute current one or
Multiple GSM (Global System for Mobile Communication, global system for mobile communications) carrier waves.
2. protection interval operates (Guard band operation): utilizing 3GPP LTE (Long-Term
Evolution, long term evolution) system carrier protection interval part in not used resource block carry out narrow band communication.
3. with interior operation (In-band operation): carrying out narrowband using the resource block in normal LTE system carrier wave
Communication.
In LTE, a system bandwidth by several PRB (Physical Resource Block) to forming, and one
PRB pair includes two PRB, and is located on the time slot 0 and time slot 1 of a LTE subframe.Traditional PDCCH (Physical
Downl ink Control Channel, Physical Downlink Control Channel) occupy whole system bandwidth preceding R OFDM
(Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol, the R OFDM symbol
It is considered as the search space of UE, and UE searches for one's own scheduling letter by way of blind Detecting in R OFDM symbol
Breath.10 system of LTE Release introduces EPDCCH (Enhanced Physical Downl ink Control
Channel, the Physical Downlink Control Channel of enhancing), EPDCCH occupies Q PRB pair, and the Q is configured by high-level signaling.It is described
Q PRB pair is considered as the search space of UE, and UE searches for one's own tune by way of blind Detecting in Q PRB pair
Spend information.
NB-IOT technology is introduced, especially under with interior operation scenario, it is exactly control signaling that one, which needs the problem of studying,
The design of searching resource.The EMTC for introducing with traditional LTE system and Release 13 and just being discussed in 3GPP
(Enhanced Machine-Type Communication, the machine type communication of enhancing) system is compared, maximum difference
It is, in 1 LTE subframe, NB-IOT system only works (180kHz), i.e. 1ms on the narrowband that a bandwidth is a PRB
Interior, only one PRB pair is used for the transmission of NB-IOT.Its benefit is to greatly reduce the cost and power consumption of receiving device, but examine
Consider the big covering and the characteristic of anti-deep fade of satisfaction required for it.Traditional configures control signaling in a LTE subframe
The method of search space, it is clear that with regard to needing to improve.
In view of the above-mentioned problems, the present invention provides solutions.It should be noted that in the absence of conflict, this Shen
The feature in the embodiment and embodiment in UE (User Equipment, user equipment) please can be applied in base station, instead
?.Further, in the absence of conflict, the feature in embodiments herein and embodiment can arbitrarily mutual group
It closes.
Summary of the invention
For the control channel searching resource configuration of narrow band communication and design scheme, an intuitive method is will be by NB-
Search space of 1 PRB pair that IOT is occupied in 1ms as entire control channel, and introduced by Release 13EMTC
It repeats (Repetition), which is repeated on a timeline, to guarantee its transmission performance.However inventor passes through
The study found that will lead to number of repetition excessive for above-mentioned intuitive method, and multiple UE need it is serial by base station on a timeline
Service, will affect the efficiency of entire NB-IOT system.
Solution in the present invention has fully considered the above problem.
The invention discloses a kind of methods in UE for supporting narrowband wireless communication, wherein includes the following steps:
Step A. searches for target signaling on M searching resource
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search money
Source occupies the bandwidth of 1 PRB in each time window, and the duration of the time window is 1 millisecond.Described search resource
It is combined by 16*N RE (Resource Element, resource unit) collection, and 16*N RE set is distributed in N number of time
In window in the bandwidth of occupied 1 PRB of searching resource.The target signaling is occupied inside each described search resource
Resource is one in K candidate resource, and the K is positive integer.The candidate resource is combined by positive integer RE collection, described
RE set includes positive integer RE.The RE that RE set occupies occupy in the time domain each searching resource it is occupied N number of when
Between window.N is positive integer, and is greater than 1.
As one embodiment, the M is equal to 1.
As one embodiment, two candidate resources, institute in described two candidate resources are included at least in K candidate resource
Including RE set quantity it is different.
Include at least two RE set as one embodiment, in the candidate resource, it is included in the RE set
RE number is different.
As one embodiment, the M is greater than 1, and the UE assumes the target signaling respectively in the M searching resource
In be repeatedly transmitted M times.
As one embodiment, the M is greater than 1, and for the M searching resource, the target signaling is in each institute
It is identical for stating internal occupied RE pattern in searching resource.
As one embodiment, the M is greater than 1, and for the M searching resource, the target signaling is in each institute
The RE pattern stated in searching resource other than the internal occupied RE occupied in addition to common signal channel is identical, the common signal channel
Including at least one of { the first synchronizing channel, SSC Secondary Synchronisation Code, first broadcast channel }.
As one embodiment, the target signaling is physical layer signaling.
As one embodiment, the time window is LTE subframe.
As one embodiment, the time window is the RE number and RE building form that time width is 1ms, and is included
Subframe identical with LTE subframe, with existing LTE subframe only difference is that its time domain initial position and existing LTE subframe
It is misaligned in the time domain.
As one embodiment, the RE collection is combined into EREG (Enhanced Resource Element Group, enhancing
Resource unit group).
As one embodiment, the RE is LTE system downlink subframe or special subframe DwPTS (Downlink Pilot
Time Slot, descending pilot frequency time slot) RE of downlink transfer is used in part.
The essence of above-mentioned M searching resource is: a searching resource occupies N number of PRB pair altogether, the resource of N number of PRB pair
The search space of corresponding tradition PDCCH/EPDCCH, the detection for target signaling.And Release is then continued to use in M search space
The duplicate transmission mode of 13EMTC, i.e. target signaling repeat M times on M search space, and target signaling is empty in each search
Between the time-frequency location of candidate resource of middle occupancy remain unchanged, to guarantee the robustness of target signalling.
One searching resource is designed to that the benefit of N number of PRB pair also resides in, in the up channel design of existing NB-IOT,
The design method of one mainstream is exactly that the carrier wave interval of uplink is reduced to L/mono- of 180kHz from 180kHz, and wherein L is one
Positive integer increases the ability of anti-multipath time delay and propagation delay time with this.Based on this mode, the PRB pair of a uplink will extend
Onto L subframe, i.e., the minimum time unit of uplink scheduling is Lms.If setting L for the N in method proposed in this paper, and recognize
It with Nms is primary scheduling minimum unit in the time domain for system.HARQ (Hybrid then based on this NB-IOT system
Automatic Repeat reQuest, hybrid automatic repeat-request) and the repeatedly design of transmission, it will it is relatively easy to reality
It is existing.
Another feature of the present invention is exactly that a RE is gathered occupied RE, is assigned to occupied by a searching resource
All time windows in.Such benefit is the time diversity gain that can be brought in transmission, and then improves the whole of system
Body performance.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step A1. is true in a manner of rate-matched (Rate-matching) or punching (Puncture) on retaining resource
Determine the mapping of the REs in candidate resource to the corresponding modulation symbol sequence of the target signaling, the reservation resource includes following
At least one:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step A0. receives the first signaling, determines the value of N.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step B. receives or sends data according to the scheduling of target signaling.
Wherein the target signaling is physical layer signaling.
The invention discloses a kind of methods in base station for supporting narrowband wireless communication, wherein includes the following steps:
Step A. chooses resource on M searching resource, sends target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step A1. executes the corresponding modulation of the target signaling on retaining resource in a manner of rate-matched or punching
The mapping of REs of the symbol sebolic addressing into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step A0. sends the first signaling, indicates the value of N.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step B. sends or receives data according to the scheduling of target signaling.
Wherein the target signaling is physical layer signaling.
The invention discloses a kind of UE equipment for supporting narrowband wireless communication, which is characterized in that the equipment includes:
- the first module: target signaling is searched on M searching resource
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
In addition, the first module is also used to: being determined in candidate resource in a manner of rate-matched or punching on retaining resource
REs to the mapping of the corresponding modulation symbol sequence of the target signaling, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
And the first signaling is received, determine the value of N.
- the second module: according to the scheduling of target signaling, data are received or sent.
The invention discloses a kind of base station equipments for supporting narrowband wireless communication, which is characterized in that the equipment includes:
- the first module: choosing resource on M searching resource, sends target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
In addition, the first module is also used to: executing the target letter in a manner of rate-matched or punching on retaining resource
The mapping of REs of the corresponding modulation symbol sequence into candidate resource is enabled, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
And the first signaling is sent, determine the value of N.
Second module: according to the scheduling of target signaling, data are sent or received.
Compared to existing public technology, the present invention has following technical advantage:
- .M searching resources are to realize that bring gain is transmitted in repetition.And each searching resource can dispatch multiple NB-
The data of IOT UE are transmitted, and the efficiency of system is improved.
The each searching resource of-is distributed in the time domain in N number of time window, and agreeing with uplink reduces subcarrier spacing to cause
One uplink PRB pair expands to the framework of multiple time windows, repeats transmission and the design of HARQ convenient for whole system.
The each RE of-gathers occupied RE and is distributed on the occupied N number of time window of a searching resource, is passed with realizing
Defeated time diversity gain.
The detection mode of the corresponding target signaling of-described search resource continues to use the blind Detecting mode of traditional EPDCCH, just
It is designed in device.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the downlink transfer flow chart of an embodiment based on the first signaling according to the present invention；
Fig. 2 shows the uplink flow charts of an embodiment based on the first signaling according to the present invention；
Fig. 3 shows the downlink transfer flow chart of the one according to the present invention embodiment based on the predefined N of system；
Fig. 4 shows the uplink flow chart of the one according to the present invention embodiment based on the predefined N of system；
Fig. 5 (a) and Fig. 5 (b) shows a kind of resource allocation of the M searching resource according to the present invention on time-frequency domain and shows
It is intended to, wherein Fig. 5 (a) is the schematic diagram that non-hopping mode is used based on searching resource distribution, and wherein Fig. 5 (b) is based on search
Resource allocation uses the schematic diagram of frequency-hopping mode；
Fig. 6 (a) and Fig. 6 (b) are shown under N-CP (Normal Cyclic Prefix, normal cyclic prefix), RE set
It is mapped to the schematic diagram of N number of PRB pair in N number of time window.Here N=6.Fig. 6 (a) corresponds to a searching resource occupied 6
The mapping mode of the time window of serial number odd number in a time window.Fig. 6 (b) corresponds to a searching resource occupied 6 time
The mapping mode of the time window of serial number even number in window.
Fig. 7 (a), figure, 7 (b) and Fig. 7 (c) are shown in E-CP (Extended Cyclic Prefix, before Extended Cyclic
Sew) under, the schematic diagram of N number of PRB pair of the RE compound mapping into N number of time window.Here N=6.The corresponding search money of Fig. 7 (a)
The mapping mode of 1st and the 4th time window in occupied 6 time windows in source.Occupied by the corresponding searching resource of Fig. 7 (b)
6 time windows in the 2nd and the 5th time window mapping mode.3rd and the 6th time window in corresponding 6 time windows of Fig. 7 (c)
Mapping mode.
Fig. 8 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 9 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the downlink transfer flow chart of an embodiment based on the first signaling according to the present invention, such as
Shown in attached drawing 1.The step of in attached drawing 1, base station N1 is the maintenance base station of the serving cell of UE U2, is identified in box F1 is optional
Step.
For base station N1, the first signaling is sent in step s 11, indicates the value of N.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.
As one embodiment, the first signaling is the serving cell that base station N1 is used to provide UE U2 narrow band communication service
PCID (Physical Cell Identification, Physical Cell Identifier), and the value of N is corresponding by the PCID detected
The value of the position K in binary sequence indicates.And the PCID is by the first synchronization channel transmissions.
It as a sub- embodiment of the embodiment, K 2, and is last two of PCID.If this two are ' 00 ', N
=6；If this two are ' 01 ', N=5；If this two are ' 10 ', N=4；If this two are ' 10 ', N=3.
It as another sub- embodiment of the embodiment, K 1, and is last 1 of PCID.If the position is ' 0 ', N=
6；If this two are ' 1 ', N=5.
As one embodiment, the first signaling is the serving cell that base station N1 is used to provide UE U2 narrow band communication service
PCID, and the value of N passes through the value instruction of the position K in the corresponding binary sequence of PCID detected.And the PCID is by second
Synchronization channel transmissions.
It as a sub- embodiment of the embodiment, K 2, and is last two of PCID.If this two are ' 00 ', N
=6；If this two are ' 01 ', N=5；If this two are ' 10 ', N=4；If this two are ' 10 ', N=3.
It as another sub- embodiment of the embodiment, K 1, and is last 1 of PCID.If the position is ' 0 ', N=
6；If this two are ' 1 ', N=5.
As one embodiment, the first signaling is the serving cell that base station N1 is used to provide UE U2 narrow band communication service
PCID, and the value of N passes through the value instruction of the position K in the corresponding binary sequence of PCID detected.And the PCID is by first
Synchronizing channel and SSC Secondary Synchronisation Code common transport.
It as a sub- embodiment of the embodiment, K 2, and is last two of PCID.If this two are ' 00 ', N
=6；If this two are ' 01 ', N=5；If this two are ' 10 ', N=4；If this two are ' 10 ', N=3.
It as another sub- embodiment of the embodiment, K 1, and is last 1 of PCID.If the position is ' 0 ', N=
6；If this two are ' 1 ', N=5.
As one embodiment, the first signaling is the position the K information bit in the first broadcast channel.First broadcast channel
For sending the system broadcast information for narrow band communication of serving cell, wherein the serving cell is base station N1 for providing
The cell of UE U2 narrow band communication service.
As a sub- embodiment of the embodiment, K 2.If two information bits are ' 00 ', N=6；If this two
Position information bit is ' 01 ', then N=5；If this two are ' 10 ', N=4；If this two are ' 10 ', N=3.
As another sub- embodiment of the embodiment, K 1.If 1 information bit is ' 0 ', N=6；If this 1
Information bit is ' 1 ', then N=5.
For UE U2, the first signaling is received in the step s 21, determines the value of N
For base station N1, in step s 12, resource is chosen on M searching resource, send target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource,
The K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.It is described
The RE that RE set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
As one embodiment, the M is equal to 1.
As one embodiment, the M searching resource, first time window occupied by each adjacent two searching resource
Between between be divided into P time window, P is positive integer.As a sub- embodiment of the embodiment, the P is believed by the first broadcast
Road instruction.As another sub- embodiment of the embodiment, the P is predefined by system.
As one embodiment, the M searching resource, first time window occupied by each adjacent two searching resource
Between between be divided into P normal time window, P is positive integer.Wherein the normal time window is to be used for transmission the first synchronization signal,
And/or the second time window except synchronization signal and/or the first broadcast channel.It is described as a sub- embodiment of the embodiment
P is indicated by the first broadcast channel.As another sub- embodiment of the embodiment, the P is predefined by system.
For base station N1, in step s 13, candidate resource is determined in a manner of rate-matched or punching on retaining resource
In REs to the mapping of the corresponding modulation symbol sequence of the target signaling, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For UE U2, in step S22, target signaling is searched on M searching resource
As one embodiment, the mode of described search target signaling is traditional EPDCCH localized transmission mode
(Localized Transmission Type) corresponding blind Detecting mode (Blind Decoding), specific description will be
Subsequent embodiment provides.
For UE U2, in step S23, candidate resource is determined in a manner of rate-matched or punching on retaining resource
In REs to the mapping of the corresponding modulation symbol sequence of the target signaling, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For base station N1, in step S14, according to the scheduling of target signaling, data are sent.
For UE U2, in step s 24, according to the scheduling of target signaling, data are received.
Embodiment 2
Embodiment 2 illustrates the uplink flow chart of an embodiment based on the first signaling according to the present invention, such as
Shown in attached drawing 2.The step of in attached drawing 2, base station N3 is the maintenance base station of the serving cell of UE U4, is identified in box F1 is optional
Step.
For base station N3, the first signaling is sent in step S31, indicates the value of N.
For UE U4, the first signaling is received in step S41, determines the value of N
For base station N3, in step s 32, resource is chosen on M searching resource, send target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
For base station N3, in step S33, candidate resource is determined in a manner of rate-matched or punching on retaining resource
In REs to the mapping of the corresponding modulation symbol sequence of the target signaling, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For UE U4, in step S42, target signaling is searched on M searching resource
For UE U4, in step S43, the target is determined in a manner of rate-matched or punching on retaining resource
The mapping of REs of the corresponding modulation symbol sequence of signaling into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For UE U4, in step S44, according to the scheduling of target signaling, data are sent.
For base station N3, in step S34, according to the scheduling of target signaling, data are received.
Embodiment 3
Embodiment 3 illustrates the downlink transfer flow chart of the one according to the present invention embodiment based on the predefined N of system,
As shown in Fig. 3.In attached drawing 3, base station N5 is the maintenance base station of the serving cell of UE U6, and N here is that system is predefined
Fixed integer, as a sub- embodiment of the embodiment, N=6；As another sub- embodiment of the embodiment, N=5；Make
For another sub- embodiment of the embodiment, N=4；As another sub- embodiment of the embodiment, N=3.
For base station N5, in step s 51, resource is chosen on M searching resource, send target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
For base station N5, in step S52, candidate resource is determined in a manner of rate-matched or punching on retaining resource
In REs to the mapping of the corresponding modulation symbol sequence of the target signaling, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For UE U6, in step S61, target signaling is searched on M searching resource
As one embodiment, the mode of described search target signaling is that traditional EPDCCH localized transmission mode is corresponding
Blind Detecting mode, specific descriptions will provide in subsequent embodiment.
For UE U6, in step S62, the target is determined in a manner of rate-matched or punching on retaining resource
The mapping of REs of the corresponding modulation symbol sequence of signaling into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For base station N5, in step S54, according to the scheduling of target signaling, data are sent.
For UE U6, in step S64, according to the scheduling of target signaling, data are received.
Embodiment 4
Embodiment 4 illustrates the uplink flow chart of the one according to the present invention embodiment based on the predefined N of system,
As shown in Fig. 4.In attached drawing 4, base station N7 is the maintenance base station of the serving cell of UE U8, and N here is that system is predefined
Fixed integer, as a sub- embodiment of the embodiment, N=6；As another sub- embodiment of the embodiment, N=5；Make
For another sub- embodiment of the embodiment, N=4.
For base station N7, in step S71, resource is chosen on M searching resource, sends target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
For base station N7, in step S72, when sending target signaling on M searching resource, with rate-matched (Rate-
Matching) or punching (puncture) mode, avoid retain resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For UE U8, in step S81, target signaling is searched on M searching resource
As one embodiment, the mode of described search target signaling is traditional EPDCCH localized transmission mode
(Localized Transmission Type) corresponding blind Detecting mode (Blind Decoding), specific descriptions will be rear
Continuous embodiment provides.
For UE U8, in step S82, the target is determined in a manner of rate-matched or punching on retaining resource
The mapping of REs of the corresponding modulation symbol sequence of signaling into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
For UE U8, in step S84, according to the scheduling of target signaling, data are sent.
For base station N7, in step S74, according to the scheduling of target signaling, data are received.
Embodiment 5
Embodiment 5 shows a kind of resource allocation schematic diagram of M searching resource of the invention in time-frequency domain row, Fig. 5 (a)
For the schematic diagram for using non-hopping mode based on searching resource distribution, Fig. 5 (b) is to use frequency-hopping mode based on searching resource distribution
Schematic diagram.
As shown in Fig. 5 (a), each searching resource occupies N number of time window, the duration of the time window in the time domain
It is 1 millisecond.And position of each occupied frequency band of searching resource in whole system bandwidth is fixed, and a with the M
First occupied frequency band of searching resource of searching resource is consistent.
As a sub- embodiment, under FDD (Frequency Division Duplexing, frequency division duplex) mode,
The corresponding continuous N number of LTE subframe of N number of time window；In TDD (Time Division Duplexing, time division duplex) mode
Under, the corresponding continuous N number of LTE subframe that can be used for downlink transfer of N number of time window, the subframe that can be used for downlink transfer
Include at least one of:
- TDD downlink subframe；
The special subframe of TDD configuration 1/2/3/4/6/7/8/9 under-N-CP mode；
The special subframe of TDD configuration 1/2/3/5/6/7 under-E-CP mode；
As a sub- embodiment, in the fdd mode, except the corresponding continuous transmission common signal channel of N number of time window
N number of LTE subframe, the common signal channel include { the first synchronizing channel, SSC Secondary Synchronisation Code, the first broadcast channel } at least
One of；In tdd mode, N number of except the corresponding continuous transmission common signal channel of the N number of time window can be used for downlink transfer
LTE subframe.The common signal channel includes at least one of { the first synchronizing channel, SSC Secondary Synchronisation Code, first broadcast channel },
The subframe that can be used for downlink transfer includes at least one of:
- TDD downlink subframe；
The special subframe of TDD configuration 1/2/3/4/6/7/8/9 under-N-CP mode；
The special subframe of TDD configuration 1/2/3/5/6/7 under-E-CP mode；
As shown in Fig. 5 (b), each searching resource occupies N number of time window, the duration of the time window in the time domain
It is 1 millisecond.Position of the frequency band that each searching resource occupies in N number of time window in whole system bandwidth is the same.
And the occupied frequency band of adjacent searching resource, the position in whole system bandwidth are changed in a manner of frequency hopping, and it is every
Position of a occupied frequency band of searching resource in system bandwidth, is determined by least one following information:
(System Frame Number is the SFN of radio frames where first time window of each searching resource
System frame number)；
The corresponding subframe numbers of first time window of each searching resource；
The PCID of the cell of service is provided for the UE；
The grade for the repetition transmission that-UE is configured；
Total frequency bandwidth of the system distribution for NB-IOT transmission；
The scene that the service that-UE is received is located at, i.e., the described service belong to { independent operation, protection interval operation, with interior behaviour
Make any in scene；
As a sub- embodiment, in the fdd mode, the corresponding continuous N number of LTE subframe of N number of time window；In TDD
Under mode, the N number of time window corresponding continuous N number of LTE subframe that can be used for downlink transfer, the downlink transfer that can be used for
Subframe includes at least one of:
- TDD downlink subframe；
The special subframe of TDD configuration 1/2/3/4/6/7/8/9 under-N-CP mode；
The special subframe of TDD configuration 1/2/3/5/6/7 under-E-CP mode；
As a sub- embodiment, in the fdd mode, except the corresponding continuous transmission common signal channel of N number of time window
N number of LTE subframe, the common signal channel include { the first synchronizing channel, SSC Secondary Synchronisation Code, the first broadcast channel } at least
One of；In tdd mode, N number of except the corresponding continuous transmission common signal channel of the N number of time window can be used for downlink transfer
LTE subframe.The common signal channel includes at least one of { the first synchronizing channel, SSC Secondary Synchronisation Code, first broadcast channel },
The subframe that can be used for downlink transfer includes at least one of:
- TDD downlink subframe；
The special subframe of TDD configuration 1/2/3/4/6/7/8/9 under-N-CP mode；
The special subframe of TDD configuration 1/2/3/5/6/7 under-E-CP mode；
Embodiment 6
Embodiment 6 is shown at N-CP, N number of PRB pair of schematic diagram of the RE compound mapping into N number of time window.Here
N=6.The mapping mode of the time window of serial number odd number in corresponding 6 time windows of Fig. 6 (a).In corresponding 6 time windows of Fig. 6 (b)
The mapping mode of the time window of serial number even number.Number designation in figure corresponds to the serial number of RE set, as " 0 " indicates that its institute is in place
The RE set belongs to RE set 0, and " 1 " indicates that the RE of its position belongs to RE set 1, and so on, " X " indicates its position
RE belong to RE set X, the positive integer that the X is 0 to 95.The corresponding N number of PRB pair occupied of one searching resource includes 16* altogether
N, i.e. 96 RE set.By Fig. 6 (a) and Fig. 6 (b), it can be seen that, all RE of each RE set are distributed on 6 PRB, i.e.,
All RE of each RE set are distributed on 6 time windows.And each RE set includes 9 RE.
As a sub- embodiment of the embodiment, a RE set is an EREG, and the search of target signaling will
The blind Detecting mode for continuing to use EPDCCH carries out the blind Detecting of the scheduling information of localized mode on N number of PRB pair.
Embodiment 7
Embodiment 7 is shown at E-CP, the schematic diagram of N number of PRB pair of the RE compound mapping into N number of time window.Here N
=6.The mapping mode of 1st and the 4th time window in corresponding 6 time windows of Fig. 7 (a).The 2nd in corresponding 6 time windows of Fig. 7 (b)
With the mapping mode of the 5th time window.The mapping mode of 3rd and the 6th time window in corresponding 6 time windows of Fig. 7 (c).
Number designation in figure corresponds to the serial number of RE set, and such as " 0 " indicates that the RE of its position belongs to RE set 0, " 1 "
Indicate that the RE of its position belongs to RE set 1, and so on, " X " indicates that the RE of its position belongs to RE set X, the X
For 0 to 95 positive integer.The corresponding N number of PRB pair occupied of one searching resource includes 16*N altogether, i.e. 96 RE set.By Fig. 7
(a), scheme, 7 (b) and Fig. 7 (c) can see, and all RE of each RE set are distributed on 6 PRB, i.e., each RE set
All RE are distributed on 6 time windows.And each RE set includes 8 RE.
As a sub- embodiment of the embodiment, a RE set is an EREG, and the search of target signaling will
The blind Detecting mode for continuing to use EPDCCH carries out the blind Detecting of the scheduling information based on localized transmission mode on N number of PRB pair.
Embodiment 8
Embodiment 8 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；It is such as attached
Shown in Fig. 8.In attached drawing 8, base station processing unit 200 is mainly by the first module 201 and the second module 202.
- the first module 201: choosing resource on M searching resource, sends target signaling
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
In addition, the first module 201 is also used to: executing the target in a manner of rate-matched or punching on retaining resource
The mapping of REs of the corresponding modulation symbol sequence of signaling into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
And the first signaling is received, determine the value of N.
- the second module 202: according to the scheduling of target signaling, data are sent or received.
Embodiment 9
Embodiment 9 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；Such as attached drawing 9
It is shown.In attached drawing 9, UE processing unit 300 is mainly made of the first module 301 and the second module 302.
- the first module 301: target signaling is searched on M searching resource
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, described search resource
The bandwidth of 1 PRB is occupied in each time window, the duration of the time window is 1 millisecond.Described search resource by
16*N RE collection is combined into, and 16*N RE set is distributed in occupied 1 PRB's of searching resource in N number of time window
In bandwidth.The target signaling occupied resource inside each described search resource is one in K candidate resource, institute
Stating K is positive integer.The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE.The RE
The RE that set occupies occupies the occupied N number of time window of each searching resource in the time domain.N is positive integer, and is greater than 1.
In addition, the first module 301 is also used to: determining the target in a manner of rate-matched or punching on retaining resource
The mapping of REs of the corresponding modulation symbol sequence of signaling into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
And the first signaling is received, determine the value of N.
- the second module 302: according to the scheduling of target signaling, data are received or sent.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.UE in the present invention includes but is not limited to mobile phone,
Tablet computer, notebook, card of surfing Internet, the wireless telecom equipments such as vehicular communication equipment.Base station in the present invention includes but is not limited to
Macrocell base stations, microcell base station, Home eNodeB, the wireless telecom equipments such as relay base station.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of method in UE for supporting narrowband wireless communication, wherein include the following steps:
Step A. searches for target signaling on M searching resource；
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, and described search resource is every
The bandwidth of 1 PRB is occupied in a time window, the duration of the time window is 1 millisecond；Described search resource is by 16*N
A RE collection is combined into, and 16*N RE set is distributed in the bandwidth of occupied 1 PRB of searching resource in N number of time window
On；The target signaling occupied resource inside each described search resource is one in K candidate resource, the K
It is positive integer；The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE；The RE set
The RE of occupancy occupies the occupied N number of time window of each searching resource in the time domain；N is positive integer, and is greater than 1.
2. the method according to claim 1, wherein further including following steps:
Step A1. determines that the REs in candidate resource believes to the target in a manner of rate-matched or punching on retaining resource
The mapping of corresponding modulation symbol sequence is enabled, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel.
3. the method according to claim 1, wherein further including following steps before the step A:
Step A0. receives the first signaling, determines the value of N.
4. according to claim 1 to method described in any claim in 3, which is characterized in that further include after the step A
Following steps:
Step B. receives or sends data according to the scheduling of target signaling；
Wherein the target signaling is physical layer signaling.
5. a kind of method in base station for supporting narrowband wireless communication, wherein include the following steps:
Step A. chooses resource on M searching resource, sends target signaling；
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, and described search resource is every
The bandwidth of 1 PRB is occupied in a time window, the duration of the time window is 1 millisecond；Described search resource is by 16*N
A RE collection is combined into, and 16*N RE set is distributed in the bandwidth of occupied 1 PRB of searching resource in N number of time window
On；The target signaling occupied resource inside each described search resource is one in K candidate resource, the K
It is positive integer；The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE；The RE set
The RE of occupancy occupies the occupied N number of time window of each searching resource in the time domain；N is positive integer, and is greater than 1.
6. according to the method described in claim 5, it is characterized in that, further including following steps:
Step A1. executes the corresponding modulation symbol of the target signaling on retaining resource in a manner of rate-matched or punching
The mapping of REs of the sequence into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel.
7. according to the method described in claim 5, it is characterized in that, further including following steps before the step A:
Step A0. sends the first signaling, indicates the value of N.
8. the method according to any claim in claim 5 to 7, which is characterized in that further include after the step A
Following steps:
Step B. sends or receives data according to the scheduling of target signaling；
Wherein the target signaling is physical layer signaling.
9. a kind of UE equipment for supporting narrowband wireless communication, which is characterized in that the equipment includes:
- the first module: target signaling is searched on M searching resource；
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, and described search resource is every
The bandwidth of 1 PRB is occupied in a time window, the duration of the time window is 1 millisecond；Described search resource is by 16*N
A RE collection is combined into, and 16*N RE set is distributed in the bandwidth of occupied 1 PRB of searching resource in N number of time window
On；The target signaling occupied resource inside each described search resource is one in K candidate resource, the K
It is positive integer；The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE；The RE set
The RE of occupancy occupies the occupied N number of time window of each searching resource in the time domain；N is positive integer, and is greater than 1；
In addition, the first module is also used to: determining the REs in candidate resource in a manner of rate-matched or punching on retaining resource
To the mapping of the corresponding modulation symbol sequence of the target signaling, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
And the first signaling is received, determine the value of N；
- the second module: according to the scheduling of target signaling, data are received or sent.
10. a kind of base station equipment for supporting narrowband wireless communication, which is characterized in that the equipment includes:
- the first module: choosing resource on M searching resource, sends target signaling；
Wherein, the M is positive integer, and described search resource is distributed in the time domain in N number of time window, and described search resource is every
The bandwidth of 1 PRB is occupied in a time window, the duration of the time window is 1 millisecond；Described search resource is by 16*N
A RE collection is combined into, and 16*N RE set is distributed in the bandwidth of occupied 1 PRB of searching resource in N number of time window
On；The target signaling occupied resource inside each described search resource is one in K candidate resource, the K
It is positive integer；The candidate resource is combined by positive integer RE collection, and the RE set includes positive integer RE；The RE set
The RE of occupancy occupies the occupied N number of time window of each searching resource in the time domain；N is positive integer, and is greater than 1；
In addition, the first module is also used to: executing the target signaling pair in a manner of rate-matched or punching on retaining resource
The mapping of REs of the modulation symbol sequence answered into candidate resource, the reservation resource includes at least one of:
The occupied RE of-the first synchronizing channel；
The occupied RE of SSC Secondary Synchronisation Code；
The occupied RE of-the first broadcast channel；
And the first signaling is sent, determine the value of N；
- the second module: according to the scheduling of target signaling, data are sent or received.
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| WO2019119479A1 (en) * | 2017-12-22 | 2019-06-27 | 南通朗恒通信技术有限公司 | Method and apparatus used for wireless communication in user equipment and base station |
| CN110248411B (en) * | 2018-03-07 | 2021-03-26 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN110300453B (en) * | 2018-03-22 | 2023-04-28 | 上海朗帛通信技术有限公司 | User equipment, method and device in base station for wireless communication |
| CN110324122B (en) * | 2018-03-29 | 2021-11-23 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN115022212B (en) * | 2022-06-01 | 2024-04-16 | 海光信息技术股份有限公司 | Bandwidth monitoring method, device, circuit and electronic equipment |
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