CN106686617B - A kind of method and apparatus in narrow band transmission - Google Patents
A kind of method and apparatus in narrow band transmission Download PDFInfo
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- CN106686617B CN106686617B CN201510744678.5A CN201510744678A CN106686617B CN 106686617 B CN106686617 B CN 106686617B CN 201510744678 A CN201510744678 A CN 201510744678A CN 106686617 B CN106686617 B CN 106686617B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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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
Abstract
The invention discloses the method and apparatus in a kind of narrow band transmission.UE is detected on K target running time-frequency resource receives power, determines the first parameter.Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the linear average of the reception power in RE included by the K target running time-frequency resource, and the unit of the first parameter is watt.The target running time-frequency resource be used to transmit specific information, and the specific information includes downlink reference signal.The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than 1.Time required for measuring present invention reduces RRM improves the accuracy of RRM measurement, interface-free resources needed for saving the first broadcast message.
Description
Technical field
The present invention relates to the transmission plans in wireless communication system, more particularly to the cellular network communication of compatible narrow band transmission
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
Band Internet of Things) it is set up the project.NB-IOT supports 3 kinds of different operational modes (RP-151621):
1. independent (Stand-alone) operation, is disposed on the frequency spectrum that GERAN system uses.
2. protection band is run, disposed on the not used resource block in the protection band of LTE carrier wave
3. being disposed on the resource block on LTE carrier wave with interior operation
Further, in NB-IOT, UE (User Equipment, user equipment) supports 180kHz in uplink and downlink
RF (Radio Frequency, radio frequency) bandwidth, i.e. a PRB (Physical Resource Block, Physical Resource Block).
In existing cellular network system, in RRM (Radio Resource Management, the radio resource that the side UE carries out
Management) measurement generally include RSRP (Reference Signal Received Power, Reference Signal Received Power) measurement and
RSRQ (Reference Signal Received Quality, Reference Signal Received Power) measurement.With LTE (Long Term
Evolution, long term evolution) for, RRM measurement is potentially based on CRS (the Cell specific in system bandwidth
Reference Signal, cell reference signals), CSI (Channel Status Information, channel state information)-
RS (Reference Signal), MBSFN RS or direct connection (Sidelink) RS.
Summary of the invention
Inventors discovered through research that in narrow band communication, RRM measurement institute can benefit according to the standard that existing RRM is measured
RS does not have ergodie property on frequency domain.Therefore reliable RRM measurement result may monitor quite UE in order to obtain
Long when m- considerably increase is delayed brought by RRM measurement.
The present invention, aiming to the above problems, provides solutions.It should be noted that in the absence of conflict, the application
UE (User Equipment, user equipment) in embodiment and embodiment in feature can be applied in base station, it is on the contrary
?.Further, in the absence of conflict, the feature in embodiments herein and embodiment can arbitrarily mutual group
It closes.
The invention discloses a kind of methods in UE for supporting narrow band communication, wherein includes the following steps:
Step A. is detected on K target running time-frequency resource receives power, determines the first parameter.
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K
The linear average of reception power in RE included by target running time-frequency resource (Resource Element, resource particle), the
The unit of one parameter is watt.The target running time-frequency resource be used to transmit specific information, and the specific information includes descending reference
Signal.The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than 1.
The essence of the above method is that K narrow-band shares identical first parameter.UE executes RRM survey in K narrow-band
Amount, can accurately measure the RSRP of narrow-band within a short period of time.In traditional cellular network system, RSRP or RSRQ are
Carrier wave is specific, i.e. the corresponding RSRP or RSRQ of a carrier wave.In narrow band communication, multiple narrowband carriers are likely to by one
A base station scheduling, and UE is likely to work in the mode of TDM (Time Division Multiplex, be time-multiplexed) more
On a narrowband carrier.Therefore, the RSRP and RSRQ individually for a carrier wave no longer can accurately reflect the load and transmission of base station
Quality.Although supporting CA (Carrier Aggregation, carrier wave polymerization), the definition of RSRP and RSRQ in traditional LTE system
It is specific to be still carrier wave.
In the present invention, a RE occupies a subcarrier on frequency domain, occupies an OFDM symbol in the time domain.As one
A embodiment, the bandwidth of above-mentioned subcarrier are 15kHz.As one embodiment, the bandwidth of above-mentioned subcarrier is 2.5kHz.
As one embodiment, the bandwidth of a narrow-band is a PRB (Physical Resource Block, physics
Resource block) bandwidth, i.e. 180kHz (kHz).
As one embodiment, the bandwidth of a narrow-band is W PRB (Physical Resource Block, physics
Resource block) bandwidth, i.e., W times of 180kHz, the W is no more than 6 positive integer.
As one embodiment, pattern of the downlink reference signal inside a PRB pair reuses Q1 CRS (Cell
Reference Signal, cell reference signals) pattern of the port inside a PRB pair, the Q is positive integer.
As one embodiment, pattern of the downlink reference signal inside a PRB pair reuses Q2 CSI-RS
(Channel Status Information Reference Signal, channel state information reference signals) port is at one
Pattern inside PRB pair, the P are positive integers.
As one embodiment, the downlink reference signal is configured by cell common signaling, i.e., the described descending reference
Signal is cell common reference signal.
As one embodiment, the K narrow-band is continuous on frequency domain.
As one embodiment, the K narrow-band is discrete on frequency domain.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A0. is detected in multiple target OFDM symbols receives power, determines the second parameter.
Wherein, the second parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt.Third ginseng
Number is the linear average of the reception power in multiple target OFDM symbols, and a target OFDM symbol accounts on frequency domain
With whole bandwidth of a narrow-band, the multiple target OFDM symbol is distributed in the K narrow-band on frequency domain, described
Multiple OFDM symbols are not overlapped mutually in the time domain.
Specifically, according to an aspect of the present invention, which is characterized in that at least exist in the K target running time-frequency resource
First object running time-frequency resource and the second target running time-frequency resource, wherein under the corresponding specific information of first object running time-frequency resource includes
Row reference signal, the corresponding specific information of the second target running time-frequency resource includes downlink reference signal and narrow band sync sequence.It is described
Narrow band sync sequence includes at least one of { Zadoff-Chu sequence, pseudo-random sequence }.
As one embodiment, only one target running time-frequency resource is (i.e. when the second target in the K target running time-frequency resource
Frequency resource) on specific information include narrow band sync sequence.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. receives the first broadcast message and system information.
Wherein, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band and L
Narrow-band, the first broadcast message include that { System Frame Number, operational mode, MBSFN configuration information keep for PDCCH (Physical
Downl ink Control Channel, Physical Downlink Control Channel) OFDM symbol quantity, duplex mode, the downlink
At least one of the configuration information of reference signal }.The system information include the index of L narrow-band, L narrow-band
At least one of frequency domain position information }.The K narrow-band is the subset of target narrow-band set, the target narrow-band
Set is made of the first narrow-band and L narrow-band.
First parameter and the second parameter can be used generally for cell selection, and the essence of above-mentioned aspect is the L narrow-band
Multiple narrow-bands with the first narrow-band as a generalized cell, the generalized cell participate in cell choosing as a whole
It selects.
In traditional cellular communication, UE, which does not need decoding system information, can be detected RSRP and RSRQ, and in above-mentioned aspect,
UE needs decoding system information first then just to detect the first parameter to determine the narrow-band that can be used for RRM measurement.
As one embodiment, the K-1 is equal to the L, and the target narrow-band set is by the K narrow-band group
At.
As one embodiment, the UE voluntarily selects the K narrow-band (i.e. such as from the target narrow-band set
It is that realization is relevant that, which is selected for the narrow-band of RRM measurement).
As one embodiment, the L narrow-band is continuously that the system information identifies the frequency domain position of high narrow-band
The frequency domain position information of confidence breath and low narrow-band, the high narrow-band is that centre frequency is highest narrow in the L narrow-band
Frequency band, the low narrow-band are the narrow-bands that centre frequency is minimum in the L narrow-band.
As one embodiment, the L narrow-band be it is discrete, the system information identifies in the L narrow-band
Each narrow-band frequency domain position information.
As one embodiment, the frequency domain position information is by EARFCN (E-UTRA Absolute Radio
Frequency Channel Number) instruction.
As one embodiment, the narrow-band in the target narrow-band set is located within the same LTE system bandwidth,
The corresponding PRB of one narrow-band, the frequency domain position information are frequency domain index of the corresponding PRB in system bandwidth.
MBSFN sub-frame as one embodiment, in the MBSFN configuration information instruction narrow-band.
As one embodiment, the configuration information of the downlink reference signal includes { downlink reference signal
At least one of port number, the port index of the downlink reference signal }.
As one embodiment, the duplex mode is that { (Frequency Division Duplex, frequency division are double by FDD
Work), TDD (Time Division Duplex, time division duplex) in one.
As one embodiment, the duplex mode be FDD, TDD, HDD (Half Division Duplex, half pair
Work) } in one.
As one embodiment, the operational mode is one of { independent operating, protection band operation, with interior operation }.
As one embodiment, the system information is in a manner of frequency hopping (Frequency Hopping) in P narrow-band
Transmission, the P is positive integer, and the P narrow-band is the subset of the L narrow-band.
As one embodiment, the occupied running time-frequency resource of the first broadcast message is default (i.e. not by physical layer signaling
Scheduling).
As one embodiment, the occupied running time-frequency resource of system information is dispatched by physical layer signaling.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A2. sends uplink signaling.In the uplink signaling instruction { the first parameter, the second parameter, the first narrow-band }
At least one of.
As one embodiment, the uplink signaling includes the index of the first narrow-band, the uplink scheduling request switching
Onto the first narrow-band.
As one embodiment, the uplink signaling is top signaling.
As one embodiment, the step A2 further includes following steps:
Step A20. receives the first signaling, and the instruction of the first signaling reports the RRM parameter for target narrow-band group, described
RRM parameter includes at least one of { the first parameter, second parameter }, and the target narrow-band group includes at least described K narrow
Frequency band.
As one embodiment, the first signaling is RRC (Radio Resource Control, wireless heterogeneous networks) letter
It enables.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step B. receives downlink signaling in the second narrow-band
Step C. is according to the scheduled reception of downlink signaling or sends target data.
Wherein, it is transmitted in a narrow-band of the target data in the target narrow-band set or the mesh
Mark data are transmitted in multiple narrow-bands in the target narrow-band set in a manner of frequency hopping.Second narrow-band is the mesh
Mark a narrow-band in narrow-band set.
As one embodiment, the downlink signaling is physical layer signaling.
In above-mentioned aspect, base station flexible dispatching narrow-band in the target narrow-band set is used for transmission the physics number of plies
According to acquisition frequency diversity gain.Further, since any narrow-band in the target narrow-band set occurs for data transmissions
In, therefore, the RSRQ of one narrow-band of independent measurement not can accurately reflect the load of base station.
Specifically, according to an aspect of the present invention, which is characterized in that and the information type phase transmitted in the first narrow-band
Than having lacked the first broadcast message in the information type transmitted in other narrow-bands in the target narrow-band set.
The essence of above-mentioned aspect is that only have to carry the first broadcast message in the first narrow-band in the target narrow-band set,
Save interface-free resources expense.
The invention discloses a kind of methods in base station for supporting narrow band communication, wherein includes the following steps:
Step A. sends specific information on K target running time-frequency resource respectively.The specific information is by UE for determining
At least the first parameter in { the first parameter, the second parameter }.
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K
The linear average of reception power in RE included by target running time-frequency resource, the unit of the first parameter is watt.The specific letter
Breath includes downlink reference signal.The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than 1.
Second parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt.Third parameter is in multiple mesh
The linear average of the reception power in OFDM symbol is marked, a target OFDM symbol occupies a narrow-band on frequency domain
Whole bandwidth, the multiple target OFDM symbol is distributed in the K narrow-band on frequency domain, the multiple OFDM symbol
It is not overlapped mutually in the time domain.
Specifically, according to an aspect of the present invention, which is characterized in that at least exist in the K target running time-frequency resource
First object running time-frequency resource and the second target running time-frequency resource, wherein under the corresponding specific information of first object running time-frequency resource includes
Row reference signal, the corresponding specific information of the second target running time-frequency resource includes downlink reference signal and narrow band sync sequence.It is described
Narrow band sync sequence includes at least one of { Zadoff-Chu sequence, pseudo-random sequence }.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. sends the first broadcast message and system information.
Wherein, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band and L
Narrow-band, the first broadcast message include that { System Frame Number, operational mode, MBSFN configuration information keep for the OFDM symbol of PDCCH
Quantity, duplex mode, the configuration information of the downlink reference signal } at least one of.The system information includes { L
At least one of the index of narrow-band, the frequency domain position information of L narrow-band }.The K narrow-band is target narrow-band collection
The subset of conjunction, the target narrow-band set are made of the first narrow-band and L narrow-band.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A2. receives uplink signaling.In the uplink signaling instruction { the first parameter, the second parameter, the first narrow-band }
At least one of.
As one embodiment, above-mentioned steps A2 further includes following steps:
Step A20. sends the first signaling, and the instruction of the first signaling reports the RRM parameter for target narrow-band group, described
RRM parameter includes at least one of { the first parameter, second parameter }, and the target narrow-band group includes at least described K narrow
Frequency band.
As one embodiment, the first signaling is top signaling.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step B. sends downlink signaling in the second narrow-band
Step C. sends or receives target data according to the scheduling of downlink signaling.
Wherein, it is transmitted in a narrow-band of the target data in the target narrow-band set or the mesh
Mark data are transmitted in multiple narrow-bands in the target narrow-band set in a manner of frequency hopping.Second narrow-band is the mesh
Mark a narrow-band in narrow-band set.
Specifically, according to an aspect of the present invention, which is characterized in that and the information type phase transmitted in the first narrow-band
Than having lacked the first broadcast message in the information type transmitted in other narrow-bands in the target narrow-band set.
The invention discloses a kind of user equipmenies for supporting narrow band communication, wherein including following module:
First module: for the detection reception power on K target running time-frequency resource, the first parameter is determined.
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K
The linear average of reception power in RE included by target running time-frequency resource, the unit of the first parameter is watt.When the target
Frequency resource be used to transmit specific information, and the specific information includes downlink reference signal.The UE can only be in given time
Wireless signal is received in one narrow-band, the K is greater than 1.
As one embodiment, above-mentioned user equipment is characterized in that, the first module is also used to accord in multiple target OFDM
Detection receives power on number, determines the second parameter.Wherein, the second parameter is the first parameter divided by the resulting quotient of third parameter,
The unit of three parameters is watt.Third parameter is the linear average of the reception power in multiple target OFDM symbols, an institute
Whole bandwidth that target OFDM symbol occupies a narrow-band on frequency domain are stated, the multiple target OFDM symbol is divided on frequency domain
In the K narrow-band, the multiple OFDM symbol is not overlapped mutually cloth in the time domain.
As one embodiment, above-mentioned user equipment is characterized in that, the first module is also used to receive the first broadcast message
And system information.Wherein, the first broadcast message is transmitted in the first narrow-band, the first broadcast message be suitable for the first narrow-band and
L narrow-band, the first broadcast message include that { System Frame Number, operational mode, MBSFN configuration information keep for the OFDM of PDCCH
At least one of the quantity of symbol, duplex mode, the configuration information of the downlink reference signal }.The system information includes
At least one of { index of L narrow-band, frequency domain position information of L narrow-band }.The K narrow-band is the narrow frequency of target
Subset with set, the target narrow-band set are made of the first narrow-band and L narrow-band.
The invention discloses a kind of base station equipments for supporting narrow band communication, wherein including following module:
First module: for sending specific information respectively on K target running time-frequency resource.The specific information is used for by UE
Determine at least the first parameter in { the first parameter, the second parameter }.
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K
The linear average of reception power in RE included by target running time-frequency resource, the unit of the first parameter is watt.The specific letter
Breath includes downlink reference signal.The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than 1.
Second parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt.Third parameter is in multiple mesh
The linear average of the reception power in OFDM symbol is marked, a target OFDM symbol occupies a narrow-band on frequency domain
Whole bandwidth, the multiple target OFDM symbol is distributed in the K narrow-band on frequency domain, the multiple OFDM symbol
It is not overlapped mutually in the time domain.
As one embodiment, above-mentioned base station equipment is characterized in that, the first module is also used to send the first broadcast message
And system information.Wherein, the first broadcast message is transmitted in the first narrow-band, the first broadcast message be suitable for the first narrow-band and
L narrow-band, the first broadcast message include that { System Frame Number, operational mode, MBSFN configuration information keep for the OFDM of PDCCH
At least one of the quantity of symbol, duplex mode, the configuration information of the downlink reference signal }.The system information includes
At least one of { index of L narrow-band, frequency domain position information of L narrow-band }.The K narrow-band is the narrow frequency of target
Subset with set, the target narrow-band set are made of the first narrow-band and L narrow-band.
Compared to existing public technology, the present invention has following technical advantage:
- shortens the time required for RRM is measured, and improves the accuracy of RRM measurement
Interface-free resources needed for-saves the first broadcast message.
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 flow chart of RRM measurement according to an embodiment of the invention；
Fig. 2 shows the flow charts of narrowband downlink data transmission according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of K target running time-frequency resource according to an embodiment of the invention；
Fig. 4 shows the schematic diagram of the target OFDM symbol inside a PRB pair according to an embodiment of the invention；
Fig. 5 shows the schematic diagram of system information according to an embodiment of the invention；
Fig. 6 shows the schematic diagram that RRM according to an embodiment of the invention is reported；
Fig. 7 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 8 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 flow chart of RRM measurement, as shown in Fig. 1.In attached drawing 1, base station N1 is the service of UE U2
The maintenance base station of cell, the step of identifying in box F1, F2, F3 are optional respectively.
ForBase station N1, the first broadcast message and system information are sent in step s101；In step s 102 in K mesh
Specific information is sent respectively on mark running time-frequency resource；Uplink signaling is received in step s 103.
ForUE U2, the first broadcast message and system information are received in step s 201；In K mesh in step S202
It marks detection on running time-frequency resource and receives power, determine the first parameter；It detects and connects in multiple target OFDM symbols in step S203
Power is received, determines the second parameter；Uplink signaling is sent in step S204.
In embodiment 1, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band
With L narrow-band, the first broadcast message includes that { System Frame Number, operational mode, MBSFN configuration information keep for PDCCH's
At least one of the quantity of OFDM symbol, duplex mode, the configuration information of the downlink reference signal }.The system information
Including at least one of { index of L narrow-band, frequency domain position information of L narrow-band }.The K narrow-band is target
The subset of narrow-band set, the target narrow-band set are made of the first narrow-band and L narrow-band.When the K target
Frequency resource is located in K narrow-band on frequency domain, and the first parameter is in RE included by the K target running time-frequency resource
The linear average of power is received, the unit of the first parameter is watt.The specific information includes downlink reference signal.UE U2 exists
Given time can only receive wireless signal in a narrow-band, and the K is greater than 1.Second parameter is the first parameter divided by third
The resulting quotient of parameter, the unit of third parameter are watt.Third parameter is the line of the reception power in multiple target OFDM symbols
Mild-natured mean value, a target OFDM symbol occupy whole bandwidth an of narrow-band, the multiple target on frequency domain
OFDM symbol is distributed in the K narrow-band on frequency domain, and the multiple OFDM symbol is not overlapped mutually in the time domain.It is described
Uplink signaling indicates at least one of { the first parameter, the second parameter, first narrow-band }.
As the sub- embodiment 1 of embodiment 1, the logic channel for carrying the first broadcast message is BCCH (Broadcast
Control CHannel broadcast control channel), the transmission channel of the first broadcast message of carrying is BCH (Broadcast
CHannel broadcast channel).
As the sub- embodiment 2 of embodiment 1, the logic channel of bearing system information is BCCH, the biography of bearing system information
Defeated channel is DL-SCH (Downl ink Shared CHannel DSCH Downlink Shared Channel).
It is compared as the information type transmitted in the sub- embodiment 3 and the first narrow-band of embodiment 1, the narrow frequency of target
It is described with having lacked { the first broadcast message, narrow band sync sequence } in the information type transmitted in other narrow-bands in set
Narrow band sync sequence includes at least one of { Zadoff-Chu sequence, pseudo-random sequence }.
As the sub- embodiment 4 of embodiment 1, when in the K target running time-frequency resource in addition to the target in the first narrow-band
Other corresponding specific informations of target running time-frequency resource except frequency resource only include downlink reference signal, the mesh in the first narrow-band
Marking specific information corresponding to running time-frequency resource includes downlink reference signal and narrow band sync sequence.The narrow band sync sequence includes
At least one of { Zadoff-Chu sequence, pseudo-random sequence }.
As the sub- embodiment 5 of embodiment 1, third parameter are as follows:
Wherein,For m-th subcarrier pair of the UE in first of OFDM symbol in the multiple target OFDM symbol
Reception signal on the RE answered.The index value of the multiple target OFDM symbol is 1,2,3 ..., L；In the object time window
The index value of subcarrier be: 1,2,3 ..., M.The M is the subcarrier number in a narrow-band.As one embodiment,
The M is 12.
As the sub- embodiment 6 of embodiment 1, UE U2 assumes the spy in the target narrow-band set in all narrow-bands
The transmission cell for determining information is co-located (Co-located).
As the sub- embodiment 7 of embodiment 1, UE U2 assumes in the target narrow-band set in any two narrow-band
The port RS be (i.e. UE U2 cannot do joint channel estimation using the RS in any two narrow-band) independent of each other.
Embodiment 2
Embodiment 2 illustrates the flow chart of narrowband downlink data transmission, as shown in Fig. 2.In attached drawing 2, base station N3 is UE
The maintenance base station of the serving cell of U4.
For base station N3, downlink signaling is sent in the second narrow-band in step S301；In step s 302 under
The scheduling of row signaling sends or receives target data.
For UE U4, downlink signaling is received in the second narrow-band in step S401；According to downlink in step S402
The scheduled reception of signaling sends target data.
In embodiment 2, the target data is transmitted in a narrow-band in the target narrow-band set, Huo Zhesuo
Target data is stated to transmit in multiple narrow-bands in the target narrow-band set in a manner of frequency hopping.Second narrow-band is this
A narrow-band in the target narrow-band set in invention.
As the sub- embodiment 1 of embodiment 2, the target data is distributed in W1 subframe, is occupied on frequency domain multiple
Narrow-band.It include the index and the W1 of target narrow-band in the downlink signaling, the target narrow-band is the target
Data occupied narrow-band in first subframe in the W1 subframe, the target data is in the W1 subframe
Occupied narrow-band determines that the W1 is greater than 1 positive integer by the target narrow-band.
As the sub- embodiment 2 of embodiment 2, the downlink signaling is DCI (Downlink Control
Information, Downlink Control Information) format 1A.
As the sub- embodiment 3 of embodiment 2, the downlink signaling is physical layer signaling.
Embodiment 3
Embodiment 3 illustrates the schematic diagram of K target running time-frequency resource, as shown in Fig. 3.In attached drawing 3, oblique line identifies target
The occupied PRB pair of running time-frequency resource.
In embodiment 3, the K target running time-frequency resource is nonoverlapping mutually, the K target time-frequency money in the time domain
The occupied PRB pair in source is respectively by (1), (2) ..., (K) instruction.
Embodiment 4
Embodiment 4 illustrates the schematic diagram of the target OFDM symbol inside a PRB pair, as shown in Fig. 4.In attached drawing 4,
The lattice of cross spider mark is the RE for keeping for PDCCH, and the lattice of grey filling is the occupied RE of target running time-frequency resource,
The pane of bold box mark is the target OFDM symbol in the present invention.
In embodiment 4, the multiple target OFDM symbol in the present invention is distributed in multiple PRB pairs, wherein each PRB
The target OFDM symbol of centering is located in the same narrow-band.Target OFDM symbol does not include keeping for the RE of PDCCH.
Embodiment 5
Embodiment 5 illustrates the schematic diagram of system information, as shown in Fig. 5.In attached drawing 5, the grid mark of backslash filling
Know the occupied PRB pair of system information.
In embodiment 5, system information is transmitted in a manner of frequency hopping in two narrow-bands.
Embodiment 6
Embodiment 6 illustrates the schematic diagram that RRM is reported, as shown in Fig. 6.In attached drawing 6, the maintained cell in base station 10 is
The current service cell of UE 30, the maintained cell in base station 20 is neighboring community.
In step 1_3, base station 10 sends the first signaling and reports narrow for target to UE 30, the first signaling instruction UE 30
The RRM parameter of frequency band group, the RRM parameter include at least one of { the first parameter, second parameter }, the target narrow-band
Group includes at least described K narrow-band.
In step 2_3, base station 20 sends specific information on the K target running time-frequency resource, and UE 30 is at the K
Detection receives power on target running time-frequency resource, determines the first parameter.
In step 3_1, UE 30 sends uplink signaling to base station 10.The uplink signaling indicates RRM parameter.
In embodiment 6, the K target running time-frequency resource is located in K narrow-band on frequency domain.First parameter is institute
The linear average of the reception power in RE included by K target running time-frequency resource is stated, the unit of the first parameter is watt.The spy
Determining information includes downlink reference signal.UE 30 can only receive wireless signal in given time in a narrow-band, and the K is big
In 1.Second parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt.Third parameter is more
The linear average of reception power in a target OFDM symbol, a target OFDM symbol occupies one narrow on frequency domain
Whole bandwidth of frequency band, the multiple target OFDM symbol are distributed in the K narrow-band on frequency domain, the multiple OFDM
Symbol is not overlapped mutually in the time domain.
As the sub- embodiment 1 of embodiment 6, the uplink signaling further includes the index of the first narrow-band, the first narrow-band
Identical first broadcast message is shared with the K narrow-band, the first broadcast message is transmitted in the first narrow-band, the first broadcast
Information is suitable for the first narrow-band and L narrow-band, and the first broadcast message includes { System Frame Number, operational mode, MBSFN configuration
Information keeps for the quantity of the OFDM symbol of PDCCH, duplex mode, the configuration information of the downlink reference signal } at least
One of.
Embodiment 7
Embodiment 7 illustrates the structural block diagram of the processing unit in a UE, as shown in Fig. 7.In attached drawing 7, UE processing
Device 200 is mainly made of the first module 201, the second module 202 and third module 203.
First module 201 is for receiving the first broadcast message and system information；It detects and receives on K target running time-frequency resource
Power determines the first parameter.Second module 202 is for receiving downlink signaling in the second narrow-band；Third module 203 is used for root
According to the scheduled reception or transmission target data of downlink signaling.
In embodiment 7, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band
With L narrow-band, the first broadcast message includes that { System Frame Number, operational mode, MBSFN configuration information keep for PDCCH's
At least one of the quantity of OFDM symbol, duplex mode, the configuration information of downlink reference signal }.The system information includes
At least one of { index of L narrow-band, frequency domain position information of L narrow-band }.The K target running time-frequency resource is in frequency
It is located on domain in K narrow-band, the first parameter is the reception power in RE included by the K target running time-frequency resource
Linear average, the unit of the first parameter are watt.The target running time-frequency resource be used to transmit specific information, the specific information
Including the downlink reference signal.The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than
1.The K narrow-band is the subset of target narrow-band set, and the target narrow-band set is by the first narrow-band and L narrow frequencies
Band composition.Second narrow-band is a narrow-band in the target narrow-band set.Bandwidth of one narrow-band on frequency domain
It is 180kHz.
As the sub- embodiment 1 of embodiment 7, a narrow-band of the target data in the target narrow-band set
Upper transmission
As the sub- embodiment 2 of embodiment 7, the target data is in a manner of frequency hopping in the target narrow-band set
Multiple narrow-bands on transmitted with frequency-hopping mode.
As the sub- embodiment 3 of embodiment 7, the first module 201 is also used to detect in multiple target OFDM symbols and receive
Power determines the second parameter.Wherein, the second parameter is the first parameter divided by the resulting quotient of third parameter, the unit of third parameter
It is watt.Third parameter is the linear average of the reception power in multiple target OFDM symbols, a target OFDM symbol
Whole bandwidth of a narrow-band are occupied number on frequency domain, the multiple target OFDM symbol is distributed in the K on frequency domain
In narrow-band, the multiple OFDM symbol is not overlapped mutually in the time domain.
As the sub- embodiment 4 of embodiment 7, the first module 201 is also used to send uplink signaling, and the uplink signaling is high
Layer signaling, the uplink signaling indicate at least one of the first narrow-band and { the first parameter, the second parameter }.
Embodiment 8
Embodiment 8 illustrates the structural block diagram of the processing unit in a base station, as shown in Fig. 8.In attached drawing 8, base station
Processing unit 300 is mainly made of the first module 301, the second module 302 and third module 303.
First module 301 for sending specific information respectively on K target running time-frequency resource, used by UE by the specific information
At least the first parameter in determination { the first parameter, the second parameter }.Under second module 302 is used in the second narrow-band send
Row signaling.Third module 303 is used to that target data to be sent or received according to the scheduling of downlink signaling.
In embodiment 8, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is institute
The linear average of the reception power in RE included by K target running time-frequency resource is stated, the unit of the first parameter is watt.The spy
Determining information includes downlink reference signal.The UE can only receive wireless signal in given time in a narrow-band, and the K is big
In 1.Second parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt.Third parameter is more
The linear average of reception power in a target OFDM symbol, a target OFDM symbol occupies one narrow on frequency domain
Whole bandwidth of frequency band, the multiple target OFDM symbol are distributed in the K narrow-band on frequency domain, the multiple OFDM
Symbol is not overlapped mutually in the time domain.The target data is transmitted in a narrow-band in the target narrow-band set,
Or the target data is transmitted in multiple narrow-bands in the target narrow-band set in a manner of frequency hopping.Second narrow frequency
Band is a narrow-band in the target narrow-band set.The bandwidth of one narrow-band is 180kHz.
As the sub- embodiment 1 of embodiment 8, the first module 301 is also used to send the first broadcast message and system information.Its
In, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band and L narrow-band, the
One broadcast message includes that { System Frame Number, operational mode, MBSFN configuration information keep for the quantity of the OFDM symbol of PDCCH, double
At least one of work mode, the configuration information of the downlink reference signal }.The system information includes the { rope of L narrow-band
At least one of draw, the frequency domain position information of L narrow-band.The K narrow-band is the subset of target narrow-band set,
The target narrow-band set is made of the first narrow-band and L narrow-band.
As the sub- embodiment 2 of embodiment 8, the first module 301 is also used to receive uplink signaling.The uplink signaling instruction
At least one of { the first parameter, the second parameter, first narrow-band }, the uplink signaling is high-level signaling.
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, common UE and ordinary terminal
Including but not limited to mobile phone, tablet computer, notebook, vehicular communication equipment, wireless sensor, the wireless communications such as card of surfing Internet are set
It is standby.Narrowband terminal in the present invention includes but is not limited to internet-of-things terminal, RFID terminal, NB-IOT terminal, MTC (Machine
Type Communication, machine type communication) terminal, eMTC (enhanced MTC, the MTC of enhancing) terminal, data card,
Card of surfing Internet, vehicular communication equipment, inexpensive mobile phone, the wireless telecom equipments such as inexpensive tablet computer.Base station packet in the present invention
Include but be 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 (18)
1. a kind of method in UE for supporting narrow band communication, wherein include the following steps:
Step A. is detected on K target running time-frequency resource receives power, determines the first parameter；
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K target
The linear average of reception power in RE included by running time-frequency resource, the unit of the first parameter is watt；The target time-frequency money
Source be used to transmit specific information, and the specific information includes downlink reference signal；The UE can only be at one in given time
Wireless signal is received in narrow-band, the K is greater than 1.
2. the method according to claim 1, wherein the step A further includes following steps:
Step A0. is detected in multiple target OFDM symbols receives power, determines the second parameter；
Wherein, the second parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt；Third parameter is
The linear average of reception power in multiple target OFDM symbols, a target OFDM symbol occupy one on frequency domain
Whole bandwidth of a narrow-band, the multiple target OFDM symbol is distributed in the K narrow-band on frequency domain, the multiple
OFDM symbol is not overlapped mutually in the time domain.
3. the method according to claim 1, wherein at least there is the first mesh in the K target running time-frequency resource
Mark running time-frequency resource and the second target running time-frequency resource, wherein the corresponding specific information of first object running time-frequency resource includes descending reference
Signal, the corresponding specific information of the second target running time-frequency resource includes downlink reference signal and narrow band sync sequence；The narrowband is same
Step sequence includes at least one of Zadoff-Chu sequence or pseudo-random sequence.
4. method according to claim 1 or 2, which is characterized in that the step A further includes following steps:
Step A1. receives the first broadcast message and system information；
Wherein, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band and L narrow frequencies
Band, the first broadcast message include System Frame Number, operational mode, MBSFN configuration information, keep for PDCCH OFDM symbol number
At least one of amount, duplex mode or configuration information of the downlink reference signal；The system information includes L narrow-band
Index or L narrow-band at least one of frequency domain position information；The K narrow-band is the son of target narrow-band set
Collection, the target narrow-band set are made of the first narrow-band and L narrow-band.
5. method according to claim 1 or 2, which is characterized in that the step A further includes following steps:
Step A2. sends uplink signaling；The uplink signaling indicates in the first parameter, the second parameter or the first narrow-band extremely
It is one of few.
6. according to the method described in claim 4, it is characterized in that, further including following steps:
Step B. receives downlink signaling in the second narrow-band
Step C. is according to the scheduled reception of downlink signaling or sends target data；
Wherein, it is transmitted in a narrow-band of the target data in the target narrow-band set or the number of targets
The mode of frequency hopping is transmitted in multiple narrow-bands in the target narrow-band set accordingly；Second narrow-band is that the target is narrow
A narrow-band in frequency band set.
7. according to the method described in claim 4, it is characterized in that, being compared with the information type transmitted in the first narrow-band, institute
It states in the information type transmitted in other narrow-bands in target narrow-band set and has lacked the first broadcast message.
8. a kind of method in base station for supporting narrow band communication, wherein include the following steps:
Step A. sends specific information on K target running time-frequency resource respectively；The specific information is by UE for determining the first ginseng
At least the first parameter in several or the second parameter；
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K target
The linear average of reception power in RE included by running time-frequency resource, the unit of the first parameter is watt；The specific packet
Include downlink reference signal；The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than 1；Second
Parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt；Third parameter is in multiple targets
The linear average of reception power in OFDM symbol, a target OFDM symbol occupy a narrow-band on frequency domain
Whole bandwidth, the multiple target OFDM symbol are distributed in the K narrow-band on frequency domain, and the multiple OFDM symbol exists
It is not overlapped mutually in time domain.
9. according to the method described in claim 8, it is characterized in that, at least there is the first mesh in the K target running time-frequency resource
Mark running time-frequency resource and the second target running time-frequency resource, wherein the corresponding specific information of first object running time-frequency resource includes descending reference
Signal, the corresponding specific information of the second target running time-frequency resource includes downlink reference signal and narrow band sync sequence；The narrowband is same
Step sequence includes at least one of Zadoff-Chu sequence or pseudo-random sequence.
10. according to the method described in claim 8, it is characterized in that, the step A further includes following steps:
Step A1. sends the first broadcast message and system information；
Wherein, the first broadcast message is transmitted in the first narrow-band, and the first broadcast message is suitable for the first narrow-band and L narrow frequencies
Band, the first broadcast message include System Frame Number, operational mode, MBSFN configuration information, keep for PDCCH OFDM symbol number
At least one of amount, duplex mode or configuration information of the downlink reference signal；The system information includes L narrow-band
Index or L narrow-band at least one of frequency domain position information；The K narrow-band is the son of target narrow-band set
Collection, the target narrow-band set are made of the first narrow-band and L narrow-band.
11. the method according to claim 8 or 10, which is characterized in that the step A further includes following steps:
Step A2. receives uplink signaling；The uplink signaling indicates in the first parameter, the second parameter or the first narrow-band extremely
It is one of few.
12. according to the method described in claim 10, it is characterized in that, further including following steps:
Step B. sends downlink signaling in the second narrow-band
Step C. sends or receives target data according to the scheduling of downlink signaling；
Wherein, it is transmitted in a narrow-band of the target data in the target narrow-band set or the number of targets
The mode of frequency hopping is transmitted in multiple narrow-bands in the target narrow-band set accordingly；Second narrow-band is that the target is narrow
A narrow-band in frequency band set.
13. according to the method described in claim 10, it is characterized in that, compared with the information type transmitted in the first narrow-band,
The first broadcast message is lacked in the information type transmitted in other narrow-bands in the target narrow-band set.
14. a kind of user equipment for supporting narrow band communication, wherein including following module:
First module: for the detection reception power on K target running time-frequency resource, the first parameter is determined；
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K target
The linear average of reception power in RE included by running time-frequency resource, the unit of the first parameter is watt；The target time-frequency money
Source be used to transmit specific information, and the specific information includes downlink reference signal；The user equipment can only in given time
Wireless signal is received in a narrow-band, the K is greater than 1.
15. user equipment according to claim 14, which is characterized in that the first module is also used to accord in multiple target OFDM
Detection receives power on number, determines the second parameter；Wherein, the second parameter is the first parameter divided by the resulting quotient of third parameter,
The unit of three parameters is watt；Third parameter is the linear average of the reception power in multiple target OFDM symbols, an institute
Whole bandwidth that target OFDM symbol occupies a narrow-band on frequency domain are stated, the multiple target OFDM symbol is divided on frequency domain
In the K narrow-band, the multiple OFDM symbol is not overlapped mutually cloth in the time domain.
16. user equipment according to claim 14, which is characterized in that the first module is also used to receive the first broadcast message
And system information；Wherein, the first broadcast message is transmitted in the first narrow-band, the first broadcast message be suitable for the first narrow-band and
L narrow-band, the first broadcast message include System Frame Number, operational mode, MBSFN configuration information, the OFDM of PDCCH are kept for accord with
Number at least one of quantity, duplex mode or the configuration information of the downlink reference signal；The system information includes L
The index of narrow-band, at least one of the frequency domain position information of L narrow-band；The K narrow-band is target narrow-band collection
The subset of conjunction, the target narrow-band set are made of the first narrow-band and L narrow-band.
17. a kind of base station equipment for supporting narrow band communication, wherein including following module:
First module: for sending specific information respectively on K target running time-frequency resource；The specific information is by UE for determining
At least the first parameter in first parameter or the second parameter；
Wherein, the K target running time-frequency resource is located in K narrow-band on frequency domain, and the first parameter is the K target
The linear average of reception power in RE included by running time-frequency resource, the unit of the first parameter is watt；The specific packet
Include downlink reference signal；The UE can only receive wireless signal in given time in a narrow-band, and the K is greater than 1；Second
Parameter is the first parameter divided by the resulting quotient of third parameter, and the unit of third parameter is watt；Third parameter is in multiple targets
The linear average of reception power in OFDM symbol, a target OFDM symbol occupy a narrow-band on frequency domain
Whole bandwidth, the multiple target OFDM symbol are distributed in the K narrow-band on frequency domain, and the multiple OFDM symbol exists
It is not overlapped mutually in time domain.
18. base station equipment according to claim 17, which is characterized in that the first module is also used to send the first broadcast message
And system information；Wherein, the first broadcast message is transmitted in the first narrow-band, the first broadcast message be suitable for the first narrow-band and
L narrow-band, the first broadcast message include System Frame Number, operational mode, MBSFN configuration information, the OFDM of PDCCH are kept for accord with
Number at least one of quantity, duplex mode or the configuration information of the downlink reference signal；The system information includes L
At least one of the frequency domain position information of the index of narrow-band or L narrow-band；The K narrow-band is target narrow-band collection
The subset of conjunction, the target narrow-band set are made of the first narrow-band and L narrow-band.
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| US10992427B2 (en) * | 2018-01-31 | 2021-04-27 | Qualcomm Incorporated | Bandwidth reservation signal for base station operation in digital modulation |
| CN113890685B (en) * | 2018-02-28 | 2024-04-12 | 上海朗帛通信技术有限公司 | User equipment, method and device in base station for wireless communication |
| CN109714735B (en) | 2018-12-25 | 2020-07-24 | 深圳职业技术学院 | Robust data transmission method in Internet of things |
| CN109413622B (en) * | 2018-12-25 | 2020-07-24 | 深圳职业技术学院 | Method for solving data transmission conflict in Internet of things |
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| WO2015159616A1 (en) * | 2014-04-14 | 2015-10-22 | モティーブリサーチ株式会社 | Estimation apparatus and program |
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| WO2015159616A1 (en) * | 2014-04-14 | 2015-10-22 | モティーブリサーチ株式会社 | Estimation apparatus and program |
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