CN106685607A - Method and device for narrowband wireless transmission - Google Patents
Method and device for narrowband wireless transmission Download PDFInfo
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- CN106685607A CN106685607A CN201510744430.9A CN201510744430A CN106685607A CN 106685607 A CN106685607 A CN 106685607A CN 201510744430 A CN201510744430 A CN 201510744430A CN 106685607 A CN106685607 A CN 106685607A
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- arrowband
- broadcast message
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- signaling
- broadcast
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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
- 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
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method and a device for narrowband wireless transmission. UE (User Equipment) searches first information in K candidate narrowbands, and the first information is received in the first narrowband, wherein the bandwidth of the first narrowband is the bandwidth of one PRB (Physical Resource Block); the first information comprises a synchronous sequence and broadcast information; the broadcast information indicates L available narrowbands; and the bandwidth of each available narrowband is the bandwidth of one PRB. Compared with the type of the information in the first narrowband, at least one selected from the synchronous sequence and the broadcast information is lacked in the available narrowband, and L is a positive integer. Through designing the new synchronous sequence and broadcast information transmitting and receiving mode, the synchronous sequences and the broadcast information in all narrowbands providing NB-IOT (NarrowBand Internet of Things) service are transmitted in one or a small number of narrowbands with a pre-defined center frequency point, the system information redundancy is thus reduced, and the narrowband system frequency spectrum efficiency is improved.
Description
Technical field
The present invention relates to the transmission plan in wireless communication system, more particularly to based on Long Term Evolution
The synchronizing sequence of the narrow band communication of (LTE-Long Term Evolution) and broadcast message
Send the method and apparatus for receiving and designing.
Background technology
In 3GPP (3rd Generation Partner Project, third generation cooperative partner program)
In RAN (Radio Access Network, wireless access network) #69 plenary session, NB-IOT
(NarrowBand Internet of Things, arrowband Internet of Things) this problem is set up the project by 3GPP
For the new Work Item of Release 13, and enter in RAN1#89bis meeting.
The technology will provide improved in-door covering, and the network architecture by optimizing, to realize supporting big
Amount with low traffic low latency sensitivity, ultralow equipment cost, low equipment power dissipation the features such as
UE equipment work.At present the technology is divided into three scenes and discusses, respectively：
1. independent operation (Stand-alone operation):For example take current
GERAN (GSM EDGE Radio Access Network, GSM/EDGE wireless communication networks) system
The bandwidth of system carries out narrow band communication, to substitute one or more current GSM (Global System
For Mobile Communication, global system for mobile communications) carrier wave.
2. protection interval operates (Guard band operation):Utilize 3GPP
Do not make in the protection interval part of LTE (Long-Term Evolution, Long Term Evolution) system carrier
With Resource Block carry out narrow band communication.
3. with interior operation (In-band operation):I.e. using in normal LTE system carrier wave
Resource Block carries out narrow band communication.
In LTE system, a system bandwidth is by several PRB (Physical Resource Block)
To composition, and a PRB is to including two PRB, and is located at the time slot of a LTE subframe respectively
0 and time slot 1 on.In one system bandwidth, 6 PRB pair at it centered on center frequency point
On, send the corresponding PSS of the bandwidth (Primary Synchronization Signal, main synchronization
Signal), SSS (Secondary Synchronization Signal, auxiliary synchronous signals) and
PBCH (Physical Broadcast Channel, Physical Broadcast Channel).And in order to ensure each
Being allocated to the corresponding bandwidth of carrier wave of base station can separately provide service, and each can provide clothes for UE
There are independent PSS, SSS and PBCH to send on the carrier wave of business.
NB-IOT technologies are introduced, the sending method of PSS, SSS and PBCH needs to be reconsidered.
The content of the invention
Inventor introduces NB-IOT technologies by studying discovery, especially under operation scenario in band,
One problem for needing research is exactly the sending method of PSS, SSS and PBCH.One kind directly sets
Meter mode, exactly sends independent PSS, SSS and PBCH on the arrowband of each offer NB-IOT.
However, found by studying, when configured number more arrowband in base station is used for NB-IOT business,
Similar synchronizing sequence and broadcast message are sent on each arrowband can cause a large amount of system resource quilts
Shared by such system information, so as to cause overall spectral efficiency relatively low.Meanwhile, substantial amounts of resource
The transmission of synchronizing sequence and broadcast message for NB-IOT systems, it is contemplated that resource interference and touch
Problem is hit, the mode will also result in the not enough and scheduling complexity of the resource to traditional UE scheduling
Lifting.
For the problems referred to above, and in view of narrower bandwidth, a synchronizing sequence is shared in multiple arrowbands
With realizability of the broadcast message on performance is ensured, the invention provides corresponding solution.
It should be noted that in the case where not conflicting, UE (User Equipment, the user of the application
Equipment) in embodiment and embodiment in feature may apply in base station, vice versa.Enter one
Step, in the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
The invention discloses a kind of method in UE for supporting narrowband wireless communication, wherein, including
Following steps：
- step A. receives the first information on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Used as one embodiment, the bandwidth of one PRB is 180kHz.
Used as one embodiment, the UE assumes that the first arrowband and the L available arrowband are shared
Same down-going synchronous reference.
Used as one embodiment, the UE can only be in the frequency of a width of 180kHz of band at the same moment
Take reception wireless signal.
Used as one embodiment, the RF abilities of the UE are less than the bandwidth of a PRB.
Used as one embodiment, the synchronizing sequence includes { Zadoff-Chu sequence, pseudorandom sequence
At least one of row }.
Used as one embodiment, the L available arrowband and the first arrowband are all located at a LTE and carry
In the system bandwidth of ripple.
Used as one embodiment, the synchronizing sequence that the first information includes is sent out on the first arrowband
Send.The synchronizing sequence sends on time window n+R*N.The time window is 1ms.N
The cycle of correspondence synchronizing sequence is Nms, and N is predefined positive integer.N is the no more than non-negative of N
Integer.R is nonnegative integer.In the corresponding PRB of time window for sending synchronizing sequence on,
Synchronizing sequence takes part or all of RE.When synchronizing sequence takes part RE, the part RE exists
Position in the PRB is predefined.
Specifically, according to an aspect of the present invention, it is characterised in that the broadcast message includes
At least the first broadcast signaling in { the first broadcast message, the second broadcast message }, the first broadcast message
Transmission be it is default, what the transmission of the second broadcast message was dispatched by downlink signaling.The L can
Indicated by the first broadcast message with arrowband, or the L available arrowband is referred to by the second broadcast message
Show.
As one embodiment, the default transmission for referring to the first broadcast message and update not by
Downlink signaling is dispatched or indicated.
Used as one embodiment, the downlink signaling is physical layer signaling.
Used as one embodiment, the downlink signaling is high-level signaling.
Used as one embodiment, the downlink signaling is the first broadcast message.
Used as one embodiment, the first broadcast message includes { System Frame Number, system bandwidth, operation
Pattern, keeps for PDCCH (Physical Downlink Control Channel, physical down
Control channel) OFDM symbol quantity, duplex mode, the second broadcast message change indicate,
Covering pattern instruction, the schedule information of the second broadcast message, the configuration of the public RS of the first arrowband
Information } at least one.
Used as one embodiment, the first broadcast message includes { cell ID, operator identifier, institute
At least one of state the configured information and the configuration information of public RS of L available arrowband }.
Used as one embodiment, the second broadcast message includes the configured information of the L available arrowband
With the configuration information of public RS.
Specifically, according to an aspect of the present invention, it is characterised in that step A also includes
Following steps：
- step A0. searches for the first arrowband in K candidate arrowband.
Wherein, the first arrowband is in the K candidate arrowband.The K candidate arrowband
Center frequency point be respectively the positive integer times of Y KHzs, Y is no less than 180 positive integer.Institute
The center frequency point for stating L available arrowband is respectively the frequency outside the positive integer times of Y KHzs.
Used as one embodiment, Y is fixed value.
As one embodiment, 1 candidate arrowband of the first information in K candidate arrowband
Transmission.
Used as one embodiment, the K1 candidate in K candidate arrowband is narrow for the first information
Band transmission.K1 is the no more than positive integer of K.
Specifically, according to an aspect of the present invention, it is characterised in that step A also includes
Following steps：
- step A1. is obtained respectively in the L according to the public RS on the L available arrowband
Down-going synchronous on individual available arrowband.
Used as one embodiment, the public RS is that CRS exists to internal pattern in a PRB
One PRB is to internal pattern.
Specifically, according to an aspect of the present invention, it is characterised in that also comprise the steps：
- step B. receives the second signaling, the second signaling scheduling target data on the second arrowband.
- step C. receives the target data on the 3rd arrowband.
Used as one embodiment, the second arrowband and the 3rd arrowband are an arrowbands.
Used as one embodiment, the second arrowband is in the L available arrowbands or the
One arrowband, the 3rd arrowband is indicated by the second signaling, and is in the L available arrowband.
Used as one embodiment, the second arrowband is in the L available arrowbands or the
One arrowband, the 3rd arrowband is indicated by the second signaling, and is outside the L available arrowband
Arrowband.
Specifically, according to an aspect of the present invention, it is characterised in that the second arrowband is the L
One in individual available band, the 3rd arrowband is the first arrowband, and the second signaling is by SI-RNTI institutes
The physical layer signaling of mark, the target data is the broadcast message.
No matter traditional LTE system, support or do not support that (Carrier Aggregation are carried CA
Ripple is polymerized), if providing service for UE in the system bandwidth of a LTE carrier wave, on the carrier wave
It is bound to send independent PSS, SSS and PBCH.And will not between the carrier wave of each offer service
Shared PSS, SSS and PBCH.The design is advantageous in that, each carrier wave can be allowed independent
Provide the user service.After introducing NB-IOT, a kind of mode directly continues to use the work of LTE
Mode, transmission synchronizing sequence still independent on each arrowband and broadcast message.However, due to every
Its frequency domain resource of individual arrowband is only 180kHz, the independent transmission synchronizing sequence in each arrowband and broadcast
Information can cause resource to be taken by substantial amounts of system information, and so as to reduce data transfer is can be used for
Resource, reduces spectrum efficiency.Meanwhile, substantial amounts of resource is used for the synchronizing sequence of NB-IOT systems
With the transmission of broadcast message, it is contemplated that resource interference and collision problem, it is right that the mode will also result in
Not enough and scheduling complexity the lifting of the resource of traditional UE scheduling.Further, it is contemplated that narrow
Band characteristic.The synchronizing sequence and broadcast message sent on an arrowband is shared in multiple arrowbands, in performance
On be feasible.
Meanwhile, traditional LTE system, UE can with less centre frequency interval come search for PSS and
SSS, for example, search for a PSS and SSS per 100kHz.In order to reduce the implementation complexity of UE,
To adapt to the demand of NB-IOT, the shared synchronizing sequence and broadcast message are with larger center
Frequency interval is scanned for, to reduce the implementation complexity of UE.For example carry out one per 1.44MHz
It is subsynchronous.
Further, in order to realize frequency diversity gain, shared synchronizing sequence and broadcast message can
To send on predefined a small amount of arrowband, and the position of the predefined arrowband does not need volume
Outer signals UE.
Another speciality of the present invention is comprising public on L available arrowband in the broadcast channel
RS information, to ensure UE after initial synchronisation is completed by synchronizing signal, each in the service that receives is available narrow
Take, by public RS, further essence is carried out synchronously, to be further ensured that synchronous performance.
The invention discloses a kind of method in base station for supporting narrowband wireless communication, wherein, including
Following steps：
- step A. sends the first information on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Specifically, according to an aspect of the present invention, it is characterised in that the broadcast message includes
At least the first broadcast signaling in { the first broadcast message, the second broadcast message }, the first broadcast message
Transmission be it is default, what the transmission of the second broadcast message was dispatched by downlink signaling.The L can
Indicated by the first broadcast message with arrowband, or the L available arrowband is referred to by the second broadcast message
Show.
Specifically, according to an aspect of the present invention, it is characterised in that step A also includes
Following steps：
- step A0. chooses the first arrowband in K candidate arrowband.
Wherein, the first arrowband is in the K candidate arrowband.The K candidate is narrow
The center frequency point of band is respectively the positive integer times of Y KHzs, and Y is no less than 180 positive integer.
The center frequency point of the L available arrowband is respectively the frequency outside the positive integer times of Y KHzs.
Specifically, according to an aspect of the present invention, it is characterised in that step A also includes
Following steps：
- step A1. sends public RS on the L available arrowband.
Specifically, according to an aspect of the present invention, it is characterised in that also comprise the steps：
- step B. sends the second signaling, the second signaling scheduling target data on the second arrowband.
- step C. sends the target data on the 3rd arrowband.
Specifically, according to an aspect of the present invention, it is characterised in that the second arrowband is the L
One in individual available band, the 3rd arrowband is the first arrowband, and the second signaling is by SI-RNTI institutes
The physical layer signaling of mark, the target data is the broadcast message.
The invention discloses a kind of UE equipment for supporting narrowband wireless communication, it is characterised in that should
Equipment includes：
- the first module：The first information is received on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Additionally, the first module is additionally operable to：The first arrowband is searched in K candidate arrowband.
And：Being obtained respectively according to the public RS on the L available arrowband can at the L
With the down-going synchronous on arrowband.
- the second module：The second signaling, the second signaling scheduling target data are received on the second arrowband.
Additionally, the second module is additionally operable to：The target data is received on the 3rd arrowband.
Specifically, according to an aspect of the present invention, it is characterised in that the broadcast message includes
At least the first broadcast signaling in { the first broadcast message, the second broadcast message }, the first broadcast message
Transmission be it is default, what the transmission of the second broadcast message was dispatched by downlink signaling.The L can
Indicated by the first broadcast message with arrowband, or the L available arrowband is referred to by the second broadcast message
Show.
Specifically, according to an aspect of the present invention, it is characterised in that the second arrowband is the L
One in individual available band, the 3rd arrowband is the first arrowband, and the second signaling is by SI-RNTI institutes
The physical layer signaling of mark, the target data is the broadcast message.
The invention discloses a kind of base station equipment for supporting narrowband wireless communication, it is characterised in that this sets
It is standby to include：
- the first module：The first information is sent on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Additionally, the first module is additionally operable to：The first arrowband is chosen in K candidate arrowband.
And：Public RS is sent on L available arrowband.
- the second module：The second signaling, the second signaling scheduling target data are sent on the second arrowband.
Additionally, the second module is additionally operable to：The target data is sent on the 3rd arrowband.
Specifically, according to an aspect of the present invention, it is characterised in that the broadcast message includes
At least the first broadcast signaling in { the first broadcast message, the second broadcast message }, the first broadcast message
Transmission be it is default, what the transmission of the second broadcast message was dispatched by downlink signaling.The L can
Indicated by the first broadcast message with arrowband, or the L available arrowband is referred to by the second broadcast message
Show.
Specifically, according to an aspect of the present invention, it is characterised in that the second arrowband is the L
One in individual available band, the 3rd arrowband is the first arrowband, and the second signaling is by SI-RNTI institutes
The physical layer signaling of mark, the target data is the broadcast message.
Existing public technology is compared, the present invention has following technical advantage：
-. the transmission of a synchronizing signal and broadcast singal is shared in multiple arrowbands, to reduce system information
Transmission, improve spectrum efficiency.
-. the synchronizing sequence shared with larger centre frequency IV interval and broadcast message, to reduce
The implementation complexity of UE, and then the cost of UE is reduced, to adapt to the demand of NB-IOT,.
-. shared synchronizing sequence and broadcast message can send on predefined a small amount of arrowband,
To realize the frequency diversity gain of transmission.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, this
The other features, objects and advantages of invention will become more apparent：
Fig. 1 shows the reality that a synchronizing sequence of the invention and broadcast message send and receive
Apply the flow chart of example；
Fig. 2 shows the schematic diagram of the embodiment of candidate arrowband distribution of the invention；
Fig. 3 shows the enforcement that a broadcast message of the invention sends on a candidate arrowband
The schematic diagram of example；
Fig. 4 shows the enforcement that a broadcast message of the invention sends on K1 candidate arrowband
The schematic diagram of example；
Fig. 5 shows a broadcast message of the invention, and the second signaling and target data are one
The schematic diagram of the embodiment for sending on individual arrowband and receiving；
Fig. 6 shows a broadcast message of the invention, and the second signaling and target data are more
The schematic diagram of the embodiment for sending on individual arrowband and receiving；
Fig. 7 shows the structured flowchart of the processing meanss in UE according to an embodiment of the invention；
Fig. 8 shows the structured flowchart of the processing meanss in base station according to an embodiment of the invention；
Specific embodiment
Technical scheme is described in further detail below in conjunction with accompanying drawing, needs explanation
It is that, in the case where not conflicting, the feature in embodiments herein and embodiment can be arbitrarily mutual
Combination.
Embodiment 1
Embodiment 1 illustrates the flow process of the embodiment of a uplink of the present invention of the invention
Figure, as shown in Figure 1.In accompanying drawing 1, base station N1 is the maintenance base station of the Serving cell of UE U2.
For base station N1, the first arrowband is chosen in K candidate arrowband in a step 11
Used as one embodiment, the bandwidth of the K candidate arrowband is the bandwidth of a PRB.
Used as one embodiment, the center frequency point of the K candidate arrowband is respectively Y KHzs
Positive integer times, Y is no less than 180 positive integer.As a sub- embodiment of the embodiment,
The Y is equal to 180.Used as a sub- embodiment of the embodiment, the Y is equal to 180, and K
The center frequency point of individual candidate arrowband is respectively the positive integer times of 1440kHz.
Used as one embodiment, first arrowband is a candidate arrowband in K candidate arrowband.
Used as one embodiment, first arrowband is that K1 candidate in K candidate arrowband is narrow
Band.K1 is greater than 1 positive integer.
Used as a sub- embodiment of the embodiment, K1 is 2.
Used as a sub- embodiment of the embodiment, K1 is 2 positive integer times.
As a sub- embodiment of the embodiment, position of the K1 candidate arrowband on frequency domain
The relation of putting is predefined.Specifically, it is candidate band 1 to time by K1 candidate band numbering
Frequency-selecting band K1.In the K1 candidate band, the center frequency point of the candidate band of adjacent numbering it
Between interval be predefined, and meet the positive integer times of Y KHzs.
For base station N1, the first information is sent on the first arrowband in step 12
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Used as one embodiment, the bandwidth of one PRB is 180kHz.
Used as one embodiment, the UE assumes that the first arrowband and the L available arrowband are shared
Same down-going synchronous reference.
Used as one embodiment, the UE can only be in the frequency of a width of 180kHz of band at the same moment
Take reception wireless signal.
Used as one embodiment, the RF abilities of the UE are less than the bandwidth of a PRB.
Used as one embodiment, the synchronizing sequence includes { Zadoff-Chu sequence, pseudorandom sequence
At least one of row }.
Used as one embodiment, the L available arrowband and the first arrowband are all located at a LTE and carry
In the system bandwidth of ripple.
Used as one embodiment, the broadcast message includes { the first broadcast message, the second broadcast letter
Breath } at least the first broadcast signaling, the transmission of the first broadcast message is default, the second broadcast
The transmission of information is dispatched by downlink signaling.The L available arrowbands indicate by the first broadcast message,
Or the L available arrowband is indicated by the second broadcast message.
It is described default to refer to sending out for the first broadcast message as a sub- embodiment of the embodiment
Send and update and do not dispatched or indicated by downlink signaling.
Used as one embodiment, the first broadcast message includes { System Frame Number, system bandwidth, operation
Pattern, keeps for the quantity of the OFDM symbol of PDCCH, duplex mode, the second broadcast message to change
Become and indicate, covering pattern is indicated, the schedule information of the second broadcast message, the public RS of the first arrowband
Configuration information at least one.
Used as an attached sub- embodiment of the sub- embodiment, the System Frame Number is to send described the
LTE SFN's (System Frame Number, System Frame Number) shared by one broadcast message is high by 8
Pass in position, the as MIB (Master Information Block, Master Information Block) of LTE system
Defeated systemFrameNumber information units.
Used as an attached sub- embodiment of the sub- embodiment, the System Frame Number is to send described the
LTE SFN (System Frame Number, System Frame Number) shared by one broadcast message, account for altogether
Use 10 bits.
Used as an attached sub- embodiment of the sub- embodiment, the system bandwidth is to send described the
The system bandwidth of the LTE carrier waves belonging to one arrowband, the LTE as comprising first arrowband is carried
The dl-Bandwidth information units transmitted in the MIB of ripple.
As an attached sub- embodiment of the sub- embodiment, the operational mode be independent operating,
Protection band run, with interior operation } in one kind.
Used as an attached sub- embodiment of the sub- embodiment, second broadcast message changes instruction
The configured information of the second broadcast message change is indicated for, 1 bit is taken, " 0 " represents second
Broadcast message does not change, and " 1 " represents the second broadcast information updating.
Used as an attached sub- embodiment of the sub- embodiment, the covering pattern indicates it is described the
The belonging covering pattern of one arrowband and L available arrowband is indicated.Specifically, the covering mould
Formula is divided into little covering, general to cover, big to cover, and greatly covers 4 kinds of patterns.4 kinds of patterns
The different control of correspondence and the number of times of the repetition of data message transmission.The covering pattern indicates to account for altogether
Use 2 bits." 00 " represents little covering pattern, and " 01 " represents general covering pattern, " 10 " table
Show big covering pattern, " 11 " represent very big covering pattern.
Used as an attached sub- embodiment of the sub- embodiment, the scheduling of second broadcast message is believed
Breath is the instruction of the running time-frequency resource shared by the second broadcast message of the transmission.Specifically, predefine
8 running time-frequency resource positions being located in L available arrowband, the schedule information of the second broadcast message is accounted for
With 3 bits." 000 " represents that the running time-frequency resource shared by the second broadcast message is predefined time-frequency
Resource 0, " 001 " represents that the running time-frequency resource shared by the second broadcast message is predefined running time-frequency resource
1, by that analogy, when " 111 " represent the running time-frequency resource shared by the second broadcast message to predefine
Frequency resource 7.
As an attached sub- embodiment of the sub- embodiment, the public RS's of first arrowband
Configuration information includes at least one of：
Sequence numbers i of the PRB that-the first arrowband is located in the system bandwidth of the LTE carrier waves, institute
Stating the descending PRB numbers that system bandwidth included isThe i be less thanIt is non-
Negative integer.
- the first arrowband absolute frequency indicates Fd, absolute frequency instruction in first arrowband is by following public affairs
Formula determination, wherein F1KHz is the center frequency point of the first arrowband for sending synchronizing sequence,
F KHzs are a fixation frequency, and the F is a predefined positive integer.The F1With F
Difference can be divided exactly by Y.
Fd=(F1-F)/Y
■ is specific, and used as one embodiment, the F KHzs are a predefined center frequency
Point, represents the initiating searches center frequency point of the arrowband for providing NB-IOT business.
MBSFN (the Multimedia Broadcast multicast of the PRB that the-the first arrowband is located
Service Single Frequency Network, multicast/multicast single-frequency network network) configuration,
1 bit is taken, " 0 " is stated and is configured without on first arrowband and L available arrowband
MBMS (Multimedia Broadcast multicast service, multicast/multicast)
Business), " 1 " to state and be configured with MBMS on first arrowband and L available arrowband.
The public RS offset informations of the-the first arrowband, the LTE carrier waves pair that the first arrowband of correspondence is located
The PCID's (Physical Cell Identification, Physical Cell Identifier) for answering
The remainder of value mould 6.
Used as a sub- embodiment of the embodiment, the first broadcast message includes { cell ID, fortune
Battalion's trade mark is known, the configured information and the configuration information of public RS of the L available arrowbands } in extremely
It is one of few.
Used as an accompanying Examples of the sub- embodiment, the cell ID is that the first arrowband is located
The corresponding PCID of LTE carrier waves (Physical Cell Identification, physical area mark
Know).
Used as an accompanying Examples of the sub- embodiment, the operator identifier is the first arrowband
PLMN-Identity (Public Land Mobile in the LTE system at place
Network-Identity, public land mobile network mark).
As an accompanying Examples of the sub- embodiment, the configured information of the L available arrowband
At least one of is included with the configuration information of public RS：
In-L available arrowband, system bands of the PRB that each arrowband is located in whole LTE carrier waves
Sequence number j in width, the descending PRB numbers that the system bandwidth is included areInstitute
State j be less thanNonnegative integer.
The center frequency point instruction of-L available arrowband, L positive integer { D of correspondenceL(1), DL(2),...,
DL(l),...,DL(L) }, the l is the no more than positive integer of L.The DL(l) by with
Lower formula determines.
DL(l)=(Dl-Fl)/180,l∈[1,L]
Wherein DlKHz is the center frequency point of l-th available arrowband in L available arrowbands, F1
KHz is the center frequency point of the first arrowband for sending synchronizing sequence.DlWith F1Difference can quilt
180 just divide exactly.
In-L available arrowband, the MBSFN (Multimedia of the PRB that each arrowband is located
Broadcast multicast service Single Frequency Network are more
Broadcast/multicast single-frequency network network) configuration, take 1 bit, " 0 " state first arrowband and
MBMS (Multimedia Broadcast are configured without on L available arrowband
Multicast service, multicast/multicast) business), " 1 " states first arrowband
And it is configured with MBMS on L available arrowband.
In-L available arrowband, the public RS offset informations of each arrowband correspond to each arrowband
Place the corresponding PCID of LT carrier waves (Physical Cell Identification,
Physical Cell Identifier) value mould 6 remainder.
Used as one embodiment, the second broadcast message includes the configured information of the L available arrowband
With the configuration information of public RS.
As a sub- embodiment of the embodiment, the configured information and public affairs of the L available arrowband
The configuration information of common RS includes at least one of：
In-L available arrowband, system bands of the PRB that each arrowband is located in whole LTE carrier waves
Sequence number j in width, the descending PRB numbers that the system bandwidth is included areInstitute
State j be less thanNonnegative integer.
The center frequency point of the center frequency point of-L available arrowband and the first arrowband of transmission synchronizing sequence
Difference on the frequency divided by 180kHz business.
In-L available arrowband, the MBSFN (Multimedia of the PRB that each arrowband is located
Broadcast multicast service Single Frequency Network are more
Broadcast/multicast single-frequency network network) configuration, take 1 bit, " 0 " state first arrowband and
MBMS (Multimedia Broadcast are configured without on L available arrowband
Multicast service, multicast/multicast) business), " 1 " states first arrowband
And it is configured with MBMS on L available arrowband.
In-L available arrowband, the public RS offset informations of each arrowband correspond to each arrowband
Place the corresponding PCID of LTE carrier waves (Physical Cell Identification,
Physical Cell Identifier) value mould 6 remainder.
For UE U2, the first arrowband is searched in K candidate arrowband in the step s 21.
As one embodiment, UE frequencies centered on the positive integer times of Y KHzs, search first
Arrowband.
Used as a sub- embodiment of the embodiment, UE judges that the arrowband is with the power for receiving signal
It is no for candidate arrowband, and so that synchronizing sequence whether can be detected in K candidate arrowband, judge
The center frequency point of the first arrowband.
As a sub- embodiment of the embodiment, during UE search is with the positive integer times of Y KHzs
All arrowbands of heart frequency, and whether can detect that synchronizing sequence judges on the arrowband
The center frequency point of one arrowband.
For UE U2, the first information is searched on the first arrowband in step S22.
Used as one embodiment, the first information is searched on the first arrowband to be obtained by relevant detection
Synchronizing sequence in the first information, and and then receive the first information in broadcast message.
As a sub- embodiment of the embodiment, the broadcast message in the reception first information,
Required channel estimation, is obtained by synchronizing sequence.
As a sub- embodiment of the embodiment, the broadcast message in the reception first information,
Required channel estimation, is obtained by the specific common RS for being used for broadcast message demodulation.
For base station N1, in step s 13, on the L available arrowband public RS is sent.
For UE U2, in step S23, according to the public RS difference on the L available arrowband
Obtain the down-going synchronous on the L available arrowband.
As one embodiment, down-going synchronous of the acquisition on the L available arrowband, it is
The descending essence obtained on the L available arrowband is synchronous, link synchronization tracing of going forward side by side.
For base station N1, in step S14, the second signaling, the second signaling are sent on the second arrowband
Regulation goal data.
For user U2, in step S14, the second signaling, the second signaling are received on the second arrowband
Regulation goal data.
For base station N1, in step S15, on the 3rd arrowband the target data is sent.
For user U2, in step s 25, on the 3rd arrowband the target data is received.
Used as one embodiment, the second arrowband is in the L available band, and the 3rd is narrow
Band is the first arrowband, and the second signaling is the physical layer signaling identified by SI-RNTI, the target
Data are the broadcast messages.
Used as one embodiment, the second arrowband and the 3rd arrowband are an arrowbands.
Used as one embodiment, the second arrowband is in the L available arrowbands or the
One arrowband, the 3rd arrowband is indicated by the second signaling, and is in the L available arrowband.
Used as one embodiment, the second arrowband is in the L available arrowbands or the
One arrowband, the 3rd arrowband is indicated by the second signaling, and is outside the L available arrowband
Arrowband.
Used as one embodiment, the second arrowband is K2 in the L available arrowband available narrow
Band, K2 is the no more than positive integer of L.3rd arrowband is indicated by the second signaling, and is the L
Can be with K3 available arrowband in arrowband, K3 is the no more than positive integer of L.
Used as one embodiment, the second arrowband is K2 in the L available arrowband available narrow
Band, K2 is the no more than positive integer of L.3rd arrowband is indicated by the second signaling, and is comprising described
Any K3 arrowband in the system bandwidth of the LTE carrier waves of L available arrowband, K3 is positive integer.
Embodiment 2
Embodiment 2 illustrates the schematic diagram of the embodiment of candidate arrowband distribution of the invention.
As shown in Figure 2, the center frequency point of the K candidate arrowband is respectively M times of Y KHzs, M
For positive integer times, Y is no less than 180 positive integer.The band of each candidate band is a width of
180kHz。
Embodiment 3
Embodiment 3 illustrates what a broadcast message of the invention sent on a candidate arrowband
The schematic diagram of embodiment.As shown in Figure 3, the broadcast message sends window in a broadcast message
It is middle to send P time, take a time window in time domain every time, the time window is 1ms,
All or part of running time-frequency resource of a PRB centering is taken on frequency domain.The broadcast message takes part
During running time-frequency resource, the portion of time frequency resources is predefined.In figure, it is 40ms that broadcast message sends window,
P is equal to 4.The adjacent broadcast message for sending broadcast message is sent at intervals of 10ms.
Embodiment 4
Embodiment 4 illustrates what a broadcast message of the invention sent on K1 candidate arrowband
The schematic diagram of embodiment.As shown in Figure 4, the broadcast message sends window in a broadcast message
It is middle to send P time, take a time window in time domain every time, the time window is 1ms,
All or part of running time-frequency resource of a PRB centering is taken on frequency domain.The broadcast message takes part
During running time-frequency resource, the portion of time frequency resources is predefined.In figure, broadcast message sends window and is
40ms, P are equal to 4, and K1 is equal to 4.Broadcast message is sent at intervals of 10ms.One broadcast message
In cycle, each broadcast message sends and can independently decode, and P transmission can be with soft merging.Specifically
The transmission of broadcast message every time, in broadcast message the position in window on each candidate arrowband is sent, with
The radio frame number for sending broadcast message is relevant, and is similar to the design of present LTE system PBCH, extensively
Broadcast information diverse location scrambler to be scrambled.As shown in figure 4, the remainder of radio frame number mould 4 is equal to
0, then broadcast message sends in candidate arrowband 0, and adopt Phase (phase place) for 0 position scrambler
Scrambling；The remainder of radio frame number mould 4 is equal to 1, then broadcast message sends in candidate arrowband 1, and
Adopt Phase (phase place) and scramble for 1 position scrambler；The remainder of radio frame number mould 4 is equal to 2,
Then broadcast message sends in candidate arrowband 2, and adopts Phase (phase place) to scramble for 2 position scrambler；
The remainder of radio frame number mould 4 is equal to 3, then broadcast message sends in candidate arrowband 3, and adopts
Phase (phase place) is 3 position scrambler scrambling.During UE detection broadcast messages, by attempting not homophase
The position scrambler of position, detects the remainder of the radio frame number mould 4 that broadcast message is located, i.e. radio frame number
Last two.
Embodiment 5
Embodiment 5 shows a broadcast message of the invention, and the second signaling and target data are equal
The schematic diagram of the embodiment for sending on an arrowband and receiving.As shown in figure 5, broadcast message sends
Window takes Q1 time window in time domain, and the time window is 1ms, and sends broadcast message
Time window be part or all of time window that the broadcast message sends window.As a son
Embodiment, the time-domain position of the time window of the transmission broadcast message is predefined.
Second signaling sends window and Q2 time window is taken in time domain, and the time window is 1ms,
And the time window of the second signaling of transmission is the part or all of time window that second signaling sends window
Mouthful.Used as a sub- embodiment, the time-domain position of the time window of the signaling of the transmission second is predetermined
Justice.Second signaling sends the initial time of window and is no earlier than for indicating second signaling
First signaling sends the end time of window.
Target data sends window and Q3 time window is taken in time domain, and the time window is 1ms,
And the time window of transmission target data is the part or all of time window that the target data sends window
Mouthful.Used as a sub- embodiment, the time-domain position of the time window of the transmission target data is predetermined
Justice.The target data sends the initial time of window and is no earlier than for indicating the target data
Second signaling sends the end time of window.
Embodiment 6
Embodiment 6 shows a broadcast message of the invention, and the second signaling and target data are equal
The schematic diagram of the embodiment for sending on multiple arrowbands and receiving.As shown in fig. 6, broadcast message is in K1
Send on individual candidate arrowband, the K1 is positive integer.Broadcast message sends window and takes in time domain
Q1 time window, the time window is 1ms, and it is described to send the time window of broadcast message
Broadcast message sends the part or all of time window of window.As a sub- embodiment, the transmission
The time-domain position of the time window of broadcast message is predefined.
Second signaling sends on K2 available arrowband, and the K2 is positive integer.Second signaling sends
Window takes Q2 time window in time domain, and the time window is 1ms, and sends the second signaling
Time window be part or all of time window that second signaling sends window.As a son
Embodiment, the time-domain position of the time window of the signaling of the transmission second is predefined.Described second
The first signaling that the initial time of signaling transmission window is no earlier than for indicating second signaling sends window
The end time of mouth.
Target data sends on K3 arrowband, and the K3 is positive integer.Target data sends window
In time domain take Q3 time window, the time window is 1ms, and transmission target data when
Between window be part or all of time window that the target data sends window.Implement as a son
Example, the time-domain position of the time window for sending target data is predefined.The target data
The initial time of transmission window is no earlier than the second signaling for indicating the target data and sends window
End time.
Embodiment 7
Embodiment 7 shows the structure of the processing meanss in base station according to an embodiment of the invention
Block diagram.As shown in Figure 7.In accompanying drawing 7, base station processing meanss 200 are main by the first module 201
Constitute with the second module 202.
- the first module 201：The first information is received on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Additionally, the first module 201 is additionally operable to：The first arrowband is searched in K candidate arrowband.
And：Being obtained respectively according to the public RS on the L available arrowband can at the L
With the down-going synchronous on arrowband.
- the second module 202：The second signaling, the second signaling scheduling target are received on the second arrowband
Data.
Additionally, the second module 202 is additionally operable to：The target data is received on the 3rd arrowband.
Used as one embodiment, the broadcast message includes the first broadcast message and the second broadcast message,
The transmission of the first broadcast message be it is default, what the transmission of the second broadcast message was dispatched by downlink signaling.
The L available arrowband is indicated by the first broadcast message, or the L available arrowband is by second
Broadcast message is indicated.
Used as a sub- embodiment of the embodiment, the first broadcast message includes that { System Frame Number is
Regiment commander is wide, operational mode, keeps for the quantity of the OFDM symbol of PDCCH, duplex mode, the
Two broadcast messages change instruction, and covering pattern is indicated, the schedule information of the second broadcast message, and first
The configuration information of the public RS of arrowband }.
As one embodiment, the first arrowband, the second arrowband and the 3rd arrowband are same arrowband.
Used as one embodiment, second signaling and target data take continuously just in time domain
Integer time window, the time window is 1ms.
Used as one embodiment, the target data is the second broadcast message.
Used as one embodiment, the L available arrowband sends the physical layer that C-RNTI is identified
Signalling, and send the data channel of the physical layer signaling scheduling identified by C-RNTI.
Used as one embodiment, in first arrowband and L available arrowband, at least two narrow
Band is belonging respectively in the corresponding system bandwidth of LTE difference carrier waves.
Used as one embodiment, in first arrowband and L available arrowband, at least one is narrow
Band belongs in the frequency band outside the corresponding system bandwidth of LTE carrier waves.
Embodiment 8
Embodiment 8 shows the structural frames of the processing meanss in UE according to an embodiment of the invention
Figure.As shown in Figure 8.In accompanying drawing 8, UE processing meanss 300 are main by the first module 301 and the
Two modules 302 are constituted.
- the first module 301：The first information is sent on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence
And broadcast message, the broadcast message indicates L available arrowband, and the band of the available arrowband is a width of
The bandwidth of one PRB.Compare with the information type on the first arrowband, lack on the available arrowband
At least one in { synchronizing sequence, broadcast message }, the L is positive integer.
Additionally, the first module 301 is additionally operable to：The first arrowband is chosen in K candidate arrowband.
And：Public RS is sent on L available arrowband.
- the second module 302：The second signaling, the second signaling scheduling target are sent on the second arrowband
Data.
Additionally, the second module is additionally operable to：The target data is sent on the 3rd arrowband.
Used as one embodiment, the broadcast message includes the first broadcast message and the second broadcast message,
The transmission of the first broadcast message be it is default, what the transmission of the second broadcast message was dispatched by downlink signaling.
The L available arrowband is indicated by the first broadcast message, or the L available arrowband is by second
Broadcast message is indicated.
Used as a sub- embodiment of the embodiment, the first broadcast message includes that { System Frame Number is
Regiment commander is wide, operational mode, keeps for the quantity of the OFDM symbol of PDCCH, duplex mode, the
Two broadcast messages change instruction, and covering pattern is indicated, the schedule information of the second broadcast message, and first
The configuration information of the public RS of arrowband }.
As one embodiment, the first arrowband, the second arrowband and the 3rd arrowband are same arrowband.
Used as one embodiment, second signaling and target data take continuously just in time domain
Integer time window, the time window is 1ms.
Used as one embodiment, the target data is the second broadcast message.
Used as one embodiment, the L available arrowband sends the physical layer that C-RNTI is identified
Signalling, and send the data channel of the physical layer signaling scheduling identified by C-RNTI.
Used as one embodiment, in first arrowband and L available arrowband, at least two narrow
Band is belonging respectively in the corresponding system bandwidth of LTE difference carrier waves.
Used as one embodiment, in first arrowband and L available arrowband, at least one is narrow
Band belongs in the frequency band outside the corresponding system bandwidth of LTE carrier waves.
One of ordinary skill in the art will appreciate that all or part of step in said method can be with
Related hardware is instructed to complete by program, described program can be stored in computer-readable storage medium
In matter, such as read-only storage, hard disk or CD etc..Optionally, the whole of above-described embodiment or
Part steps can also be realized using one or more integrated circuit.Accordingly, above-mentioned enforcement
Each modular unit in example, can be realized, it is also possible to by software function module using example, in hardware
Form realizes that the application is not limited to the combination of the software and hardware of any particular form.In the present invention
UE include but is not limited to RFID, internet-of-things terminal equipment, MTC (Machine Type
Communication, machine type communication) terminal, vehicular communication equipment, wireless senser,
The Wireless Telecom Equipments such as card of surfing Internet, mobile phone, panel computer, notebook.Base station bag in the present invention
Include but be not limited to the radio communications such as macrocell base stations, microcell base station, Home eNodeB, relay base station
Equipment.
The above, only presently preferred embodiments of the present invention is not intended to limit the present invention's
Protection domain.All any modifications within the spirit and principles in the present invention, made, equivalent,
Improve etc., should be included within the scope of the present invention.
Claims (18)
1. a kind of method in UE for supporting narrow band communication, wherein, comprise the steps：
- step A. receives the first information on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence and broadcast letter
Breath, the broadcast message indicates L available arrowband, the bandwidth of a width of PRB of band of the available arrowband.
Compare with the information type on the first arrowband, during { synchronizing sequence, broadcast message } is lacked on the available arrowband
At least one, the L is positive integer.
2. method according to claim 1, it is characterised in that the broadcast message includes { the first broadcast
Information, the second broadcast message } at least the first broadcast signaling, the transmission of the first broadcast message be it is default,
The transmission of the second broadcast message is dispatched by downlink signaling.The L available arrowband is referred to by the first broadcast message
Show, or the L available arrowband is indicated by the second broadcast message.
3. method according to claim 1, it is characterised in that step A also comprises the steps：
- step A0. searches for the first arrowband in K candidate arrowband.
Wherein, the first arrowband is in the K candidate arrowband.The center frequency of the K candidate arrowband
Point is respectively the positive integer times of Y KHzs, and Y is no less than 180 positive integer.The individual available arrowbands of the L
Center frequency point is respectively the frequency outside the positive integer times of Y KHzs.
4. method according to claim 1, it is characterised in that step A also comprises the steps：
- step A1. obtains respectively available narrow at the L according to the public RS on the L available arrowband
The down-going synchronous for taking.
5. method according to claim 1, it is characterised in that also comprise the steps：
- step B. receives the second signaling, the second signaling scheduling target data on the second arrowband.
- step C. receives the target data on the 3rd arrowband.
6. method according to claim 5, it is characterised in that the second arrowband is the L available frequency
One in band, the 3rd arrowband is the first arrowband, and the second signaling is that the physical layer identified by SI-RNTI is believed
Order, the target data is the broadcast message.
7. a kind of method in base station for supporting narrow band communication, wherein, comprise the steps：
- step A. sends the first information on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence and broadcast letter
Breath, the broadcast message indicates L available arrowband, the bandwidth of a width of PRB of band of the available arrowband.
Compare with the information type on the first arrowband, during { synchronizing sequence, broadcast message } is lacked on the available arrowband
At least one, the L is positive integer.
8. method according to claim 7, it is characterised in that the broadcast message includes { the first broadcast
Information, the second broadcast message } at least the first broadcast signaling, the transmission of the first broadcast message be it is default,
The transmission of the second broadcast message is dispatched by downlink signaling.The L available arrowband is referred to by the first broadcast message
Show, or the L available arrowband is indicated by the second broadcast message.
9. method according to claim 7, it is characterised in that step A also comprises the steps：
- step A0. chooses the first arrowband in K candidate arrowband.
Wherein, the first arrowband is in the K candidate arrowband.The center of the K candidate arrowband
Frequency is respectively the positive integer times of Y KHzs, and Y is no less than 180 positive integer.The L available arrowband
Center frequency point be respectively frequency outside the positive integer times of Y KHzs.
10. method according to claim 7, it is characterised in that step A also comprises the steps：
- step A1. sends public RS on the L available arrowband.
11. methods according to claim 7, it is characterised in that also comprise the steps：
- step B. sends the second signaling, the second signaling scheduling target data on the second arrowband.
- step C. sends the target data on the 3rd arrowband.
12. methods according to claim 7, it is characterised in that the second arrowband is the L available frequency
One in band, the 3rd arrowband is the first arrowband, and the second signaling is that the physical layer identified by SI-RNTI is believed
Order, the target data is the broadcast message.
13. a kind of UE equipment for supporting narrow band communication, it is characterised in that the equipment includes：
- the first module：The first information is received on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence and broadcast letter
Breath, the broadcast message indicates L available arrowband, the bandwidth of a width of PRB of band of the available arrowband.
Compare with the information type on the first arrowband, during { synchronizing sequence, broadcast message } is lacked on the available arrowband
At least one, the L is positive integer.
Additionally, the first module is additionally operable to：The first arrowband is searched in K candidate arrowband.
And：Obtained respectively on the L available arrowband according to the public RS on the L available arrowband
Down-going synchronous.
- the second module：The second signaling, the second signaling scheduling target data are received on the second arrowband.
Additionally, the second module is additionally operable to：The target data is received on the 3rd arrowband.
14. equipment according to claim 13, it is characterised in that the broadcast message includes that { first is wide
Broadcast information, the second broadcast message } at least the first broadcast signaling, the transmission of the first broadcast message be it is default,
The transmission of the second broadcast message is dispatched by downlink signaling.The L available arrowband is referred to by the first broadcast message
Show, or the L available arrowband is indicated by the second broadcast message.
15. equipment according to claim 13, it is characterised in that the second arrowband is the L available
One in frequency band, the 3rd arrowband is the first arrowband, and the second signaling is the physical layer identified by SI-RNTI
Signaling, the target data is the broadcast message.
16. a kind of base station equipments for supporting narrow band communication, it is characterised in that the equipment includes：
- the first module：The first information is sent on the first arrowband.
Wherein, the bandwidth of a width of PRB of the band of the first arrowband.The first information includes synchronizing sequence and broadcast letter
Breath, the broadcast message indicates L available arrowband, the bandwidth of a width of PRB of band of the available arrowband.
Compare with the information type on the first arrowband, during { synchronizing sequence, broadcast message } is lacked on the available arrowband
At least one, the L is positive integer.
Additionally, the first module is additionally operable to：The first arrowband is chosen in K candidate arrowband.
And：Public RS is sent on L available arrowband.
- the second module：The second signaling, the second signaling scheduling target data are sent on the second arrowband.
Additionally, the second module is additionally operable to：The target data is sent on the 3rd arrowband.
17. equipment according to claim 16, it is characterised in that the broadcast message includes that { first is wide
Broadcast information, the second broadcast message } at least the first broadcast signaling, the transmission of the first broadcast message be it is default,
The transmission of the second broadcast message is dispatched by downlink signaling.The L available arrowband is referred to by the first broadcast message
Show, or the L available arrowband is indicated by the second broadcast message.
18. equipment according to claim 16, it is characterised in that the second arrowband is the L available
One in frequency band, the 3rd arrowband is the first arrowband, and the second signaling is the physical layer identified by SI-RNTI
Signaling, the target data is the broadcast message.
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| CN201510744430.9A CN106685607A (en) | 2015-11-05 | 2015-11-05 | Method and device for narrowband wireless transmission |
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| CN201510744430.9A CN106685607A (en) | 2015-11-05 | 2015-11-05 | Method and device for narrowband wireless transmission |
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| CN112840727A (en) * | 2018-08-02 | 2021-05-25 | 上海诺基亚贝尔股份有限公司 | Method for standalone MTC operations |
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| US20130114587A1 (en) * | 2011-11-04 | 2013-05-09 | Alexey Khoryaev | Narrow bandwidth device in a broadband network |
| CN104321985A (en) * | 2012-04-13 | 2015-01-28 | 英特尔公司 | Evolved node B, user equipment, and method for operation of narrow bandwidth user equipment in wide bandwidth broadband networks |
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