CN107517098B - A kind of method and apparatus of wireless transmission - Google Patents
A kind of method and apparatus of wireless transmission Download PDFInfo
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- CN107517098B CN107517098B CN201610427411.8A CN201610427411A CN107517098B CN 107517098 B CN107517098 B CN 107517098B CN 201610427411 A CN201610427411 A CN 201610427411A CN 107517098 B CN107517098 B CN 107517098B
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Abstract
The invention discloses a kind of method and apparatus of wireless transmission.UE receives synchronization signal on first carrier, then receives the first wireless signal in the first time window of first carrier.Wherein, the synchronization signal corresponds to the CP of the first kind.First wireless signal transmits in the physical layer channel except PMCH, and first wireless signal corresponds to the CP of Second Type.When the present invention realizes the MBMS transmission under given time window is assigned to narrow band communication, the given time window still can support unicast communication.The present invention solves the problems, such as that the time-domain resource reserved by narrowband MBMS can not be used for unicast communication.And then the case where frequency band in the time-domain resource reserved by narrowband MBMS is wasted is avoided, improve the spectrum efficiency of system.
Description
Technical field
The present invention relates to the transmission plans of the wireless signal in wireless communication system, more particularly to support variable C P
The method and apparatus of the wireless transmission of (Cyclic Prefix, cyclic prefix).
Background technique
In 3GPP (3rd Generation Partner Project, third generation cooperative partner program) RAN (Radio
Access Network, wireless access network) in #69 plenary session, NB-IOT (NarrowBand Internet of Things, it is narrow
With Internet of Things) this project be Release 13 by 3GPP project verification new Work Item, and in RAN1#89bis meeting
Begin to discuss.The technology will provide improved in-door covering, and by the network architecture of optimization, be supported largely with realizing with low
The work of the UE equipment of the features such as traffic low latency sensitivity, ultralow equipment cost, low equipment power dissipation.
It, can be in all LTE when base station is supported and carries out MBMS service transmission in existing LTE and lte-a system
Configuration section subframe is as MBSFN (Multimedia Broadcast Single Frequency in frame (Subframe)
Network, Multicast Broadcast Single Frequency Network) subframe, abbreviation M subframe.The transmission of physical channel in these M subframes uses E-CP
(Extended CP, the cyclic prefix of extension) to fight biggish multidiameter, and multiple cells will send simultaneously it is identical
MBMS business is to realize the transmission of multicast/multicast.In a M subframe, preceding 2 OFDM (Orthogonal Frequency
Division Multiplexing, orthogonal frequency division multiplexing) symbol be used for PDCCH (Physical Downlink Control
Channel, Physical Downlink Control Channel) and PHICH (Physical Hybrid ARQ Indicator Channel, physics are mixed
Close automatic repeat request indicate channel) transmission, remaining OFDM symbol be used for PMCH (Physical Multicast
Channel, Physical Multicast Channel) transmission.
In RAN#72 meeting, the application of the enhancing about NB-IOT and relevant design are closed by each company of 3GPP
Note, one of them important enhancing field is exactly NB-IOT User support MBMS (Multimedia Broadcast/
Multicast Service, multicast and broadcast multicast) business.
Summary of the invention
When the user of NB-IOT needs support and receives MBMS business, a kind of simple method, exactly continue to use LTE and
Part sub-frame configuration in one radio frames (Radio Frame) is to support to be based on NB-IOT by the configuration of MBSFN in LTE-A
MBMS business subframe.Inventors discovered through research that due to the narrow-band characteristic of NB-IOT user, when NB-IOT user receives
When MBMS business, occupied bandwidth is still no more than 180KHz's (kHz) in a subframe.Therefore, as tradition
MBMS is the same, and the corresponding all frequency domain resources of a subframe are completely used for the MBMS business of NB-IOT, can bring system resource
Waste.
In view of the above-mentioned problems, the present invention provides solutions.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be arbitrarily combined with each other.For example, embodiment and embodiment in the UE of the application
In feature can be applied in base station, vice versa.
The invention discloses a kind of methods in UE for supporting variable C P, wherein includes the following steps:
Step A. receives synchronization signal on first carrier；
Step B. receives the first wireless signal in the first time window of first carrier.
Wherein, the synchronization signal corresponds to the CP of the first kind.Physical layer of first wireless signal except PMCH
Channel, first wireless signal correspond to the CP of Second Type.The duration of the CP of the Second Type is greater than institute
State the duration of the CP of the first kind.
In traditional LTE and lte-a system, UE by SSS (Secondary Synchronization Signal, it is auxiliary
Synchronization signal) and PSS (Primary Synchronization Signal, primary synchronization signal) judgement system used by unicast
(Unicast) transmitting corresponding CP type is N-CP (Normal CP, normal cyclic prefix) or E-CP.
In the above method, UE CP type used by received unicast signal on the first carrier is believed with synchronous
CP type indicated by number is different.
As one embodiment, the variable C P refers to: CP type corresponding to unicast service includes on a carrier wave
{ CP of the first kind, the CP of the Second Type }.
As one embodiment, there are MBMS business in the first time window.
In above-described embodiment, in the time resource that can be used for NB-IOT MBMS business, system can still carry out unicast
Transmission improves band system band utilization rate.Further, described to be adopted for NB-IOT MBMS business and first wireless signal
With identical CP type.
As one embodiment, the CP of the first kind is N-CP, and the CP of the Second Type is E-CP.
As one embodiment, the synchronization signal includes at least one of { PSS, SSS }.
As one embodiment, the synchronization signal include { NB (Narrowband, narrowband)-PSS, NB-SSS } in extremely
It is one of few.
As one embodiment, the synchronization signal and first wireless signal transmit on the same carrier wave.
As one embodiment, first wireless signal is in PDSCH (Physical Downlink Shared
Channel, Physical Downlink Shared Channel) on transmit.
As one embodiment, first wireless signal is unicast signal.
As a sub- embodiment of the embodiment, the unicast signal refers to except broadcast singal or multicast signal
Signal.
As one embodiment, the transmission channel of first wireless signal is DL-SCH (Downlink Shared
Channel, DSCH Downlink Shared Channel).
As one embodiment, the first time window occupies K continuous milliseconds (ms) in time domain.Wherein, the K is
Positive integer greater than 1.
As one embodiment, the first time window is the subframe in a LTE, and first wireless signal occupies institute
State the part OFDM symbol in first time window.
As one embodiment, the first time window be removed in subframe in a LTE the first two OFDM symbol it
Outer part, first wireless signal occupy all OFDM symbols in the first time window.
As one embodiment, RF (Radio Frequency, radio frequency) bandwidth that the UE is supported be the first narrowband (i.e.
The bandwidth for the wireless signal that the UE described in given time can be received is no more than the first narrowband).
As a sub- embodiment of the embodiment, first narrowband is 180kHz.
As a sub- embodiment of the embodiment, first narrowband is less than 180kHz
In above-described embodiment, the UE is the UE for only supporting narrow band communication.
As one embodiment, the RF bandwidth that the UE is supported is that (i.e. the UE described in given time can connect in the first broadband
The bandwidth of the wireless signal received is no more than the first broadband).
As a sub- embodiment of the embodiment, first broadband is 20MHz (megahertz).
As a sub- embodiment of the embodiment, first narrowband is greater than 20MHz.
In above-described embodiment, the UE is the UE of a support broadband connections.
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step A further includes walking as follows
It is rapid:
Step A0. receives the first information.
Wherein, the first information is used for determining that first time unit set, the first time unit set include
Positive integer time quantum, there is no for given transmission mode in the first time unit set of the first carrier
Downlink distribute (Downlink assignment), the given transmission mode is a kind of biography except transmission mode { 9,10 }
Defeated mode.
As one embodiment, the first time unit set is to keep for MBMS business by what Rel-8 terminal was assert
Subframe formed.As a sub- embodiment of the embodiment, the first time unit set can be used for NB-IOT's
Unicast service.
As one embodiment, the time quantum is the subframe in LTE.
As one embodiment, the time quantum is the length that the downlink distributes occupied minimum time window.
As one embodiment, the time quantum occupies continuous L millisecond in time domain.Wherein, the L is just whole
Number.
As one embodiment, the first information is high-level signaling.
As one embodiment, the first information is the mbsfn-SubframeConfigList in TS 36.331.
As one embodiment, the first information is the mbsfn-SubframeConfigList- in TS 36.331
v12x0。
As one embodiment, the first information is used for determining G time quantum set, the G time quantum
Gather all time quantums for being included and forms the first time unit set.Wherein, G is positive integer.
As a sub- embodiment of the embodiment, the G time quantum set is directed to G MBSFN configuration column respectively
Table (Config List).
As a sub- embodiment of the embodiment, the G time quantum set is directed to the service class of G kind MBMS respectively
Type.
As a sub- embodiment of the embodiment, the G time quantum set is directed to G TMGI respectively
(Temporary Mobile Group Identity, Temporary Mobile Group Identity).
As one embodiment, the downlink distribution, which refers to, authorizes (Grant) DCI (Downl ink Control by downlink
Information, Downlink Control Information) scheduled in down time-frequency resource.
As one embodiment, the given transmission mode be TM (Transmission Mode, transmission mode) 1,2,
One of 3,4,5,6,7,8 }.
As one embodiment, the given transmission mode is based on CRS (Cell-specific Reference
Signal, the exclusive reference signal of cell) transmission mode.
As one embodiment, the first time window belongs to the first time unit set.
As one embodiment, the first time window belongs to a time list in the first time unit set
Member.
As one embodiment, the first time window is a time quantum in the first time unit set.
As one embodiment, the RF bandwidth that the UE is supported is above-mentioned first broadband, and the first information is occupied
Bandwidth is more than above-mentioned first narrowband.
As one embodiment, the RF bandwidth that the UE is supported is above-mentioned first narrowband, and the first information is occupied
Bandwidth is no more than first narrowband.
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step A further includes walking as follows
It is rapid:
Step A1. receives the second information.
Wherein, second information is used for determining that the second time quantum set, the second time quantum set include
Positive integer time quantum.The first time window belongs to the second time quantum set.
As one embodiment, the CP of the corresponding Second Type of data transmission in the second time quantum set.
As one embodiment, second information is high-level signaling.
As one embodiment, the first time unit set is to keep for MBMS business by what Rel-8 terminal was assert
Subframe composition, the second time quantum set is the subset of the first time unit set.
As one embodiment, the first time window belongs to a time list in the second time quantum set
Member.
As one embodiment, the first time window is a time quantum in the second time quantum set.
As one embodiment, the first time window occupies the positive integer time in the second time quantum set
Unit.
As one embodiment, the UE assumes the corresponding first kind of downlink distribution in specific time unit set
The CP of type.The specific time unit set by among the first time unit set and the second time quantum set it
Outer time quantum composition.
As a sub- embodiment of above-described embodiment, the subframe in the specific time unit set is used for for TM
9/10 unicast transmission-uses N-CP, and the data transmission in the second time quantum set all uses E-CP.
As a sub- embodiment of the embodiment, the downlink distribution, which refers to, authorizes downlink scheduled in DCI by downlink
Running time-frequency resource.
As one embodiment, the RF bandwidth that the UE is supported is above-mentioned first narrowband, and second information is occupied
Bandwidth is no more than first narrowband.
As one embodiment, the RF bandwidth that the UE is supported is above-mentioned first broadband, and second information is occupied
Bandwidth is more than above-mentioned first narrowband.
As one embodiment, second information be used to determine second time from the 4th time quantum set
Unit set.Wherein, the 4th time quantum set is reserved for the transmission of the MBMS business of narrowband, and includes positive integer
A time quantum.
In above-described embodiment, system is that the MBMS business based on narrowband is individually assigned with the 4th time quantum set
Resource, and the part resource (the second time quantum set) in the 4th time quantum set can be still based on
The unicast transmission of narrowband.
As a sub- embodiment of the embodiment, the 4th time quantum set is determined by the 4th information.Wherein, institute
Stating the 4th information is high-level signaling.
As a sub- embodiment of the embodiment, the second time quantum set is the 4th time quantum set
In a time quantum subset.
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step A further includes walking as follows
It is rapid:
Step A2. receives third information.
Wherein, the third information is used for determining that third time quantum set, the third time quantum set include
Positive integer time quantum.The UE assumes the corresponding Second Type of downlink distribution in object time unit set
CP.The object time unit set is by among the second time quantum set and except the third time quantum set
Time quantum composition.The first time window belongs to the object time unit set.
As one embodiment, the third time quantum set is reserved for really carrying out MBMS service transmission
Sub-frame set, such as Rel-8/10UE really carry out the received sub-frame set of MBMS and (rather than are simply possible to use in the son of TM9/10
Frame) because, if these subframes can also carry out unicast transmission, these Rel-8/10UE can not be known the problem of forward compatibility.Cause
This, the subframe in the third time quantum set may be used only for MBMS business.
As one embodiment, the third information is the mbsfn-AreaInfoList-r9 in TS 36.331.
As one embodiment, the third information is in TS 36.331
SystemInformationBlockType13。
As one embodiment, the third information is used for determining H time quantum set, the H time quantum
Gather all time quantums for being included and forms the third time quantum set.Wherein, H is positive integer.
As a sub- embodiment of the embodiment, the H time quantum set is directed to H MBSFN Area respectively
(region).
As one embodiment, the downlink distribution, which refers to, authorizes down time-frequency resource scheduled in DCI by downlink.
As one embodiment, the downlink distribution is directed to unicast transmission.
As a sub- embodiment of the embodiment, the unicast transmission refers to except broadcast transmission or multicast transmission
Transmission.
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step B further includes walking as follows
It is rapid:
Step B0. receives physical layer signaling.
Wherein, the physical layer signaling includes the scheduling information of first wireless signal, and the scheduling information includes
MCS (Modulation and Coding Status, modulation coding state), NDI, RV (Redundancy Version, it is superfluous
Remaining version), HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request) process number is occupied
At least one of running time-frequency resource }.
As one embodiment, the physical layer signaling is that downlink authorizes DCI.
As one embodiment, the physical layer signaling is transmitted using DCI format 1A.
As one embodiment, the physical layer signaling is transmitted using DCI format 2C.
As one embodiment, the physical layer signaling is transmitted using DCI format 2D.
As one embodiment, the physical layer signaling is transmitted using DCI format 6-1A.
As one embodiment, the physical layer signaling is transmitted using DCI format 6-1B.
As one embodiment, the physical layer signaling is transmitted using DCI format 6-2.
As one embodiment, the physical layer signaling is the DCI authorized for narrowband downlink.
The invention discloses a kind of methods in base station for supporting variable C P, wherein includes the following steps:
Step A. sends synchronization signal on first carrier
Step B. sends the first wireless signal in the first time window of first carrier.
Wherein, the synchronization signal corresponds to the CP of the first kind.Physical layer of first wireless signal except PMCH
Channel, first wireless signal correspond to the CP of Second Type.The duration of the CP of the Second Type is greater than institute
State the duration of the CP of the first kind.
As one embodiment, the CP of the CP of the first kind and the Second Type is N-CP and E-CP respectively.
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step A further includes walking as follows
It is rapid:
Step A0. sends the first information.
Wherein, the first information is used for determining that first time unit set, the first time unit set include
Positive integer time quantum, there is no for given transmission mode in the first time unit set of the first carrier
Downlink distribution, the given transmission mode is a kind of transmission mode except transmission mode { 9,10 }.
As one embodiment, the base station sends described first on the first running time-frequency resource and the second running time-frequency resource respectively
Information.
As a sub- embodiment of above-described embodiment, the base station all has sent institute on two pieces of different running time-frequency resources
The first information is stated, and two pieces of different running time-frequency resources are directed to narrowband UE and broadband UE respectively.
As a sub- embodiment of the embodiment, first running time-frequency resource and second running time-frequency resource are located at difference
Frequency domain resource on.
As a sub- embodiment of the embodiment, first running time-frequency resource and second running time-frequency resource are in the time domain
In different time quantums.
As a sub- embodiment of the embodiment, first running time-frequency resource occupies M RU (Resource Unit, money
Source unit), second running time-frequency resource occupies N number of RU.And appointing in any one RU and N number of RU in the M RU
The RU that anticipates is nonoverlapping.Wherein, M and N is positive integer.
As an accompanying Examples of the sub- embodiment, the M is equal to the N.
As an accompanying Examples of the sub- embodiment, the RU is the RE (Resource in LTE system
Element, resource particle).
As an accompanying Examples of the sub- embodiment, the RU occupies a subcarrier in frequency domain, occupies in time domain
The duration of one OFDM symbol.
As a sub- embodiment of the embodiment, first running time-frequency resource is reserved for the UE of the first kind, described
Second running time-frequency resource is reserved for the UE of Second Type.
As an accompanying Examples of the sub- embodiment, the RF bandwidth that the UE of the first kind is supported is the first narrowband
(i.e. the bandwidth for the wireless signal that the UE described in given time can be received is no more than the first narrowband), the UE of the Second Type
The RF bandwidth of support is that (i.e. the bandwidth for the wireless signal that the UE described in given time can be received is no more than first in the first broadband
Broadband).Wherein, the corresponding bandwidth in first narrowband is not more than 180KHz, and the corresponding bandwidth in first broadband is not less than
20MHz。
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step A further includes walking as follows
It is rapid:
Step A1. sends the second information.
Wherein, second information is used for determining that the second time quantum set, the second time quantum set include
Positive integer time quantum.The first time window belongs to the second time quantum set.
As one embodiment, the base station sends described second on third running time-frequency resource and the 4th running time-frequency resource respectively
Information.
As a sub- embodiment of above-described embodiment, the base station all has sent institute on two pieces of different running time-frequency resources
The second information is stated, and two pieces of different running time-frequency resources are directed to narrowband UE and broadband UE respectively.
As a sub- embodiment of the embodiment, the third running time-frequency resource and the 4th running time-frequency resource are located at difference
Frequency domain resource on.
As a sub- embodiment of the embodiment, the third running time-frequency resource and the 4th running time-frequency resource are located at difference
Time window in.
As a sub- embodiment of the embodiment, the third running time-frequency resource occupies I RU, the 4th running time-frequency resource
Occupy J RU.And any one RU in any one RU and the J RU in the I RU is nonoverlapping.Wherein, I
It is positive integer with J.
As an accompanying Examples of the sub- embodiment, the I is equal to the J.
As an accompanying Examples of the sub- embodiment, the RU is the RE in LTE system.
As an accompanying Examples of the sub- embodiment, the RU occupies a subcarrier in frequency domain, occupies in time domain
The duration of one OFDM symbol.
As a sub- embodiment of the embodiment, the third running time-frequency resource is reserved for the UE of the first kind, described
4th running time-frequency resource is reserved for the UE of Second Type.
As an accompanying Examples of the sub- embodiment, the RF bandwidth that the UE of the first kind is supported is the first narrowband
(i.e. the bandwidth for the wireless signal that the UE described in given time can be received is no more than the first narrowband), the UE of the Second Type
The RF bandwidth of support is that (i.e. the bandwidth for the wireless signal that the UE described in given time can be received is no more than first in the first broadband
Broadband).Wherein, the corresponding bandwidth in first narrowband is not more than 180KHz, and the corresponding bandwidth in first broadband is not less than
20MHz。
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step A further includes walking as follows
It is rapid:
Step A2. sends third information.
Wherein, the third information is used for determining that third time quantum set, the third time quantum set include
Positive integer time quantum.The CP of the downlink distribution corresponding Second Type of the base station in object time unit set.
The object time unit set by among the second time quantum set and except the third time quantum set when
Between unit form.The first time window belongs to the object time unit set.
As one embodiment, the base station sends the third on the 5th running time-frequency resource and the 6th running time-frequency resource respectively
Information.
As a sub- embodiment of above-described embodiment, the base station all has sent institute on two pieces of different running time-frequency resources
Third information is stated, and two pieces of different running time-frequency resources are directed to narrowband UE and broadband UE respectively.
As a sub- embodiment of the embodiment, the 5th running time-frequency resource and the 6th running time-frequency resource are located at difference
Frequency domain resource on.
As a sub- embodiment of the embodiment, the 5th running time-frequency resource and the 6th running time-frequency resource are located at difference
Time window in.
As a sub- embodiment of the embodiment, the 5th running time-frequency resource occupies P RU, the 6th running time-frequency resource
Occupy Q RU.And any one RU in any one RU and the Q RU in the P RU is nonoverlapping.Wherein, P
It is positive integer with Q.
As an accompanying Examples of the sub- embodiment, the P is equal to the Q.
As an accompanying Examples of the sub- embodiment, the RU is the RE (Resource in LTE system
Element, resource particle).
As an accompanying Examples of the sub- embodiment, the RU occupies a subcarrier in frequency domain, occupies in time domain
The duration of one OFDM symbol.
As a sub- embodiment of the embodiment, the 5th running time-frequency resource is reserved for the UE of the first kind, described
6th running time-frequency resource is reserved for the UE of Second Type.
As an accompanying Examples of the sub- embodiment, the RF bandwidth that the UE of the first kind is supported is the first narrowband
(i.e. the bandwidth for the wireless signal that the UE described in given time can be received is no more than the first narrowband), the UE of the Second Type
The RF bandwidth of support is that (i.e. the bandwidth for the wireless signal that the UE described in given time can be received is no more than first in the first broadband
Broadband).Wherein, the corresponding bandwidth in first narrowband is not more than 180KHz, and the corresponding bandwidth in first broadband is not less than
20MHz。
Specifically, according to an aspect of the present invention, the above method is characterized in that, the step B further includes walking as follows
It is rapid:
Step B0. sends physical layer signaling.
Wherein, the physical layer signaling includes the scheduling information of first wireless signal, and the scheduling information includes
At least one of { MCS, RV, HARQ process number, NDI, occupied running time-frequency resource }.
The invention discloses a kind of user equipmenies for supporting variable C P, wherein including following module:
- the first receiving module: for receiving synchronization signal on first carrier；
- the second receiving module: for receiving the first wireless signal in the first time window of first carrier.
Wherein, the synchronization signal corresponds to the CP of the first kind.Physical layer of first wireless signal except PMCH
Channel, first wireless signal correspond to the CP of Second Type.The duration of the CP of the Second Type is greater than institute
State the duration of the CP of the first kind.
As one embodiment, first receiving module is also used to receive the first information.Wherein, the first information quilt
For determining first time unit set, the first time unit set includes positive integer time quantum, described first
There is no the downlink distribution for given transmission mode, the given transmission modes in the first time unit set of carrier wave
It is a kind of transmission mode except transmission mode { 9,10 }.
As one embodiment, first receiving module is also used to receive the second information.Wherein, the second information quilt
For determining that the second time quantum set, the second time quantum set include positive integer time quantum.When described first
Between window belong to the second time quantum set
As one embodiment, first receiving module is also used to receive third information.Wherein, the third information quilt
For determining that third time quantum set, the third time quantum set include positive integer time quantum.The UE assumes
The CP of the corresponding Second Type of downlink distribution in object time unit set.The object time unit set is by described
Time quantum composition among second time quantum set and except the third time quantum set.The first time window category
In the object time unit set.
As one embodiment, second receiving module is also used to receive physical layer signaling.Wherein, the physical layer letter
The scheduling information including first wireless signal is enabled, the scheduling information includes that { MCS, RV, HARQ process number, NDI are shared
At least one of running time-frequency resource }.
The invention discloses a kind of base station equipments for supporting variable C P, wherein including following module:
- the first sending module: for sending synchronization signal on first carrier；
- the second sending module: for sending the first wireless signal in the first time window of first carrier.
Wherein, the synchronization signal corresponds to the CP of the first kind.Physical layer of first wireless signal except PMCH
Channel, first wireless signal correspond to the CP of Second Type.The duration of the CP of the Second Type is greater than institute
State the duration of the CP of the first kind.
As one embodiment, first sending module is also used to send the first information.Wherein, the first information quilt
For determining first time unit set, the first time unit set includes positive integer time quantum, described first
There is no the downlink distribution for given transmission mode, the given transmission modes in the first time unit set of carrier wave
It is a kind of transmission mode except transmission mode { 9,10 }.
As one embodiment, first sending module is also used to send the second information.Wherein, the second information quilt
For determining that the second time quantum set, the second time quantum set include positive integer time quantum.When described first
Between window belong to the second time quantum set
As one embodiment, first sending module is also used to send third information.Wherein, the third information quilt
For determining that third time quantum set, the third time quantum set include positive integer time quantum.The base station is set
The CP of the standby corresponding Second Type of downlink distribution in object time unit set.The object time unit set is by institute
State the time quantum composition among the second time quantum set and except the third time quantum set.The first time window
Belong to the object time unit set.
As one embodiment, second sending module is also used to send physical layer signaling.Wherein, the physical layer letter
The scheduling information including first wireless signal is enabled, the scheduling information includes that { MCS, RV, HARQ process number, NDI are shared
At least one of running time-frequency resource }.
Compared to existing public technology, the present invention has following technical advantage:
- is realized by transmitting first wireless signal in the first time window in the son for keeping for MBMS business
Unicast data is sent in frame, improves the band efficiency and configuration flexibility of system, is avoided because a small amount of based on NB- in cell
The MBMS business of IOT and the wasting of resources of bring sub-frame level.
- guarantees the CP in the subframe for keeping for MBMS business by the transmission mode by the first wireless signal using E-CP
The uniformity of type simplifies system design.
- helps UE to confirm which keeps for the subframe of MBMS business still can be by the design of second information
Row unicast operation, convenient for the reception of UE control signaling and data-signal.
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 downlink transfer according to an embodiment of the invention；
Fig. 2 shows the schematic diagram of a given time unit set according to an embodiment of the invention, wherein institute
State given time unit set be first time unit set, the second time quantum set, third time quantum set, the 4th
One of time quantum set } in；
Fig. 3 shows the first time window according to an embodiment of the invention and the second time quantum set
Schematic diagram；
Fig. 4 shows the first time window according to an embodiment of the invention, the second time quantum set
With the schematic diagram of the third time quantum set；
Fig. 5 shows the first time window according to an embodiment of the invention, the second time quantum set
The schematic diagram being distributed with the running time-frequency resource of the third time quantum set；
Fig. 6 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 7 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 a downlink transfer according to the present invention, as shown in Fig. 1.In attached drawing 1, base
The N1 that stands is the maintenance base station of the serving cell of UE U2.The step of identifying in box F0 and box F1 is optional.
ForBase station N1, synchronization signal is sent on first carrier in step slo, sends the first letter in step s 11
Breath, sends the second information in step s 12, sends third information in step s 13, sends physical layer signaling in step S14,
The first wireless signal is sent in the first time window of first carrier in step S15.
ForUE U2, synchronization signal is received on first carrier in step S20, receives the first letter in the step s 21
Breath, receives the second information in step S22, and third information is received in step S23, receives physical layer signaling in step s 24,
The first wireless signal is received in the first time window of first carrier in step s 25.
As a sub- embodiment, the first information is { mbsfn-SubframeConfigList, mbsfn-
One of SubframeConfigList-v12x0 } in.
As a sub- embodiment, second information is used for determining the second time quantum set.Wherein, described second
Time quantum set is used for the unicast transmission based on given CP type.
As an accompanying Examples of the sub- embodiment, the given CP type is the CP of the Second Type.
As a sub- embodiment, the third information is used for third time quantum set.Wherein, the third time
Unit set is used for multicast/multicast transmission based on given CP type.
As an accompanying Examples of the sub- embodiment, the given CP type is the CP of the Second Type.
As a sub- embodiment, when the second time quantum set and the third time quantum collection are combined into the 4th
Between unit set, and the 4th time quantum set is by the 4th validation of information.Wherein, the second time quantum set includes
Positive integer time quantum, the third time quantum set include positive integer time quantum.
As an accompanying Examples of the sub- embodiment, the 4th information is transmitted on given running time-frequency resource, and institute
State the UE that given running time-frequency resource is reserved for the first kind.
As an example of the accompanying Examples, the RF bandwidth that the UE of the first kind is supported be the first narrowband (i.e.
The bandwidth for the wireless signal that the UE described in given time can be received is no more than the first narrowband).Wherein, first narrowband pair
The bandwidth answered is not more than 180KHz.
As an accompanying Examples of the sub- embodiment, the physical layer channel in the 4th time quantum set is adopted
With the CP of Second Type.
As an accompanying Examples of the sub- embodiment, the 4th time quantum set is reserved for narrowband
The transmission of MBMS business.
As an accompanying Examples of the sub- embodiment, the 4th information is high-level signaling.
As an accompanying Examples of the sub- embodiment, the 4th information is broadcast signaling.
As an accompanying Examples of the sub- embodiment, second information is true from the 4th time quantum set
Recognize the second time quantum set.
As an accompanying Examples of the sub- embodiment, the third information is true from the 4th time quantum set
Recognize the third time quantum set.
As an accompanying Examples of the sub- embodiment, second information is true from the 4th time quantum set
Recognize the second time quantum set, and the third time quantum set is second described in the 4th time quantum set
The set of time quantum except time quantum set.
As an accompanying Examples of the sub- embodiment, the third information is true from the 4th time quantum set
Recognize the third time quantum set, and the second time quantum set is third described in the 4th time quantum set
The set of time quantum except time quantum set.
As a sub- embodiment, the physical layer signaling is PDCCH.
As a sub- embodiment, the physical layer signaling is EPDCCH (Enhanced Physical downlink
Control Channel, the Physical Downlink Control Channel of enhancing).
As a sub- embodiment, the physical layer signaling is NB-PDCCH (Narrow Band Physical
Downlink Control Channel, the Physical Downlink Control Channel of narrowband).
As a sub- embodiment, the physical layer signaling is NPDCCH (Narrowband Physical downlink
Control Channel, the Physical Downlink Control Channel of narrowband).
Embodiment 2
Embodiment 2 illustrates the schematic diagram of a given time unit set according to the present invention, wherein when described given
Between unit set be { first time unit set, the second time quantum set, third time quantum set, the 4th time quantum
One of set } in.As shown in Fig. 2, each rectangle represents a time quantum in figure, and the given time unit set exists
Positive integer time quantum is occupied in time domain.The time quantum is L (ms) in the duration of time domain.
As a sub- embodiment, the time quantum is the subframe in LTE.
As a sub- embodiment, the time quantum is the length that downlink distributes occupied minimum time window.
As an accompanying Examples of the sub- embodiment, the downlink distribution refers to is authorized scheduled in DCI by downlink
Down time-frequency resource.
As a sub- embodiment, the L is equal to 1.
As a sub- embodiment, the L is greater than 1 positive integer.
As a sub- embodiment, the positive integer time quantum is discontinuous in the time domain.
Embodiment 3
Embodiment 3 illustrates showing for the one according to the present invention first time window and the second time quantum set
It is intended to.As shown in Fig. 3, each rectangle represents a time quantum in figure, and the rectangle that heavy line collimation mark is known represents described second
The rectangle of time quantum set, oblique line filling represents the first time window, and the first time window belongs to second time
Unit set.The time quantum is L (ms) in the duration of time domain.
As a sub- embodiment, the time quantum is the subframe in LTE.
As a sub- embodiment, the time quantum is the length that the downlink distributes occupied minimum time window
Degree.
As an accompanying Examples of the sub- embodiment, the downlink distribution refers to is authorized scheduled in DCI by downlink
Down time-frequency resource.
As a sub- embodiment, the L is equal to 1.
As a sub- embodiment, the L is greater than 1 positive integer.
As a sub- embodiment, the first time window belongs to a time list in the second time quantum set
Member.
As a sub- embodiment, the first time window occupies the part time-domain resource of given time unit.Wherein, institute
Stating given time unit is a time quantum in the second time quantum set.
Embodiment 4
Embodiment 4 illustrates the one according to the present invention first time window, the second time quantum set and institute
State the schematic diagram of third time quantum set.As shown in Fig. 4, each rectangle represents a time quantum, solid wire frame in figure
The rectangle of mark represents the second time quantum set, and the rectangle of oblique line filling represents the first time window, thick dashed line frame
The rectangle of mark represents the third time quantum set.As shown, the first time window belongs to object time unit collection
It closes, the object time unit set is by among the second time quantum set and except the third time quantum set
Time quantum composition.The time quantum is L (ms) in the duration of time domain.
As a sub- embodiment, the time quantum is the subframe in LTE.
As a sub- embodiment, the time quantum is the length that the downlink distributes occupied minimum time window
Degree.
As an accompanying Examples of the sub- embodiment, the downlink distribution refers to is authorized scheduled in DCI by downlink
Down time-frequency resource.
As a sub- embodiment, the L is equal to 1.
As a sub- embodiment, the L is greater than 1 positive integer.
As a sub- embodiment, the first time window belongs to a time list in the object time unit set
Member.
As a sub- embodiment, the first time window occupies the part time-domain resource of given time unit.Wherein, institute
Stating given time unit is a time quantum in the object time unit set.
Embodiment 5
Embodiment 5 illustrates the one according to the present invention first time window, the second time quantum set and institute
State the schematic diagram of the running time-frequency resource distribution of third time quantum set.As shown in Fig. 5, shown altogether in figure 10 it is continuous when
Between unit, reference numeral time window #0 to time window #9.The time quantum is L (ms) in the duration of time domain.Figure
Bandwidth bandwidth corresponding no more than the first narrowband occupied by the rectangle of middle filling oblique line and grid.
As a sub- embodiment, the time quantum is the subframe in LTE.
As a sub- embodiment, the time quantum is the length that the downlink distributes occupied minimum time window
Degree.
As an accompanying Examples of the sub- embodiment, the downlink distribution refers to is authorized scheduled in DCI by downlink
Down time-frequency resource.
As a sub- embodiment, the L is equal to 1.
As a sub- embodiment, the L is greater than 1 positive integer.
As a sub- embodiment, the time quantum { #2, #3, #7, #8 } belongs to the first time unit set.
As a sub- embodiment, the time quantum { #2, #3, #7, #8 } belongs to the 4th time quantum set.
As a sub- embodiment, the time quantum { #2, #7 } belongs to the third time quantum set.
As a sub- embodiment, the time quantum { #3, #8 } belongs to the second time quantum set, and described
One time window belong in the time quantum { #3, #8 } one of.
As a sub- embodiment, the system bandwidth is equal to bandwidth occupied by the first broadband.
As a sub- embodiment, the system bandwidth is greater than bandwidth occupied by the first narrowband.
As a sub- embodiment, first narrowband is not more than 180KHz.
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit in a UE, as shown in Fig. 6.In attached drawing 6, UE processing
Device 100 is mainly made of the first receiving module 101 and the second receiving module 102.
- the first receiving module 101: for receiving synchronization signal on first carrier；
- the second receiving module 102: for receiving the first wireless signal in the first time window of first carrier.
Wherein, the synchronization signal corresponds to the CP of the first kind.Physical layer of first wireless signal except PMCH
Channel, first wireless signal correspond to the CP of Second Type.The CP of the Second Type is E-CP, the first kind
The CP of type is N-CP.
As a sub- embodiment, first receiving module 101 is also used to receive the 4th information.Wherein, described
4th information is used for determining the 4th time quantum set.
As an accompanying Examples of the sub- embodiment, the 4th time quantum set is reserved for narrowband
The transmission of MBMS business.
As an accompanying Examples of the sub- embodiment, first receiving module 101 is also used to receive the second information.
Second information be used to determine the second time quantum set from the 4th time quantum set, and second time is single
Member set includes positive integer time quantum.The first time window belongs to the second time quantum set.
As an accompanying Examples of the sub- embodiment, first receiving module 101 is also used to receive third information.
Wherein, the third information is used for determining that third time quantum set, the third time quantum set include positive integer
Time quantum.The UE assumes the CP of the corresponding Second Type of downlink distribution in object time unit set.The mesh
Time quantum set is marked by the time quantum among the 4th time quantum set and except the third time quantum set
Composition.The first time window belongs to the object time unit set.
As a sub- embodiment, second receiving module 102 is also used to receive physical layer signaling.Wherein, the object
Reason layer signaling include first wireless signal scheduling information, the scheduling information include MCS, RV, HARQ process number,
At least one of NDI, occupied running time-frequency resource }.
Embodiment 7
Embodiment 7 illustrates the structural block diagram of the processing unit in a base station, as shown in Fig. 7.In attached drawing 7, base station
Processing unit 200 is mainly made of the first sending module 201 and the second sending module 202.
- the first sending module 201: for sending synchronization signal on first carrier；
- the second sending module 202: for sending the first wireless signal in the first time window of first carrier.
Wherein, the synchronization signal corresponds to the CP of the first kind.Physical layer of first wireless signal except PMCH
Channel, first wireless signal correspond to the CP of Second Type.The CP of the Second Type is E-CP, the first kind
The CP of type is N-CP.
As a sub- embodiment, first sending module 201 is also used to send the 4th information.Wherein, the described 4th
Information is used for determining the 4th time quantum set.
As an accompanying Examples of the sub- embodiment, the 4th time quantum set is reserved for narrowband
The transmission of MBMS business.
As an accompanying Examples of the sub- embodiment, first sending module 201 is also used to send the second information.
Second information be used to determine the second time quantum set from the 4th time quantum set, and second time is single
Member set includes positive integer time quantum.The first time window belongs to the second time quantum set.
As an accompanying Examples of the sub- embodiment, first sending module 201 is also used to send third information.
Wherein, the third information is used for determining that third time quantum set, the third time quantum set include positive integer
Time quantum.The CP of the downlink distribution corresponding Second Type of the base station in object time unit set.The target
Time quantum set is by the time quantum group among the 4th time quantum set and except the third time quantum set
At.The first time window belongs to the object time unit set.
As a sub- embodiment, second sending module 202 is also used to send physical layer signaling.Wherein, the object
Reason layer signaling include first wireless signal scheduling information, the scheduling information include MCS, RV, HARQ process number,
At least one of NDI, occupied running time-frequency resource }.
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 and terminal in the present invention include but unlimited
In mobile phone, tablet computer, notebook, vehicular communication equipment, wireless sensor, card of surfing Internet, internet-of-things terminal, RFID terminal, NB-
IOT terminal, MTC (Machine Type Communication, machine type communication) terminal, (enhanced MTC increases eMTC
Strong MTC) terminal, data card, card of surfing Internet, vehicular communication equipment, inexpensive mobile phone, the wireless communications such as inexpensive tablet computer set
It is standby.Base station in the present invention includes but is not limited to macrocell base stations, microcell base station, Home eNodeB, the channel radios such as relay base station
Believe equipment.
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 (12)
1. a kind of method in UE for supporting variable C P, wherein include the following steps:
Step A. receives synchronization signal on first carrier；
Step B. receives the first wireless signal in the first time window of first carrier；
Wherein, the synchronization signal corresponds to the CP of the first kind；First wireless signal transmits on PDSCH, and described first
Wireless signal corresponds to the CP of Second Type；CP type corresponding to unicast service includes the first kind on a carrier wave
The CP of CP and the Second Type；The duration of the CP of the Second Type be greater than the first kind CP it is lasting when
Between.
2. the method according to claim 1, wherein the step A further includes following steps:
Step A0. receives the first information；
Wherein, the first information is used for determining that first time unit set, the first time unit set include just whole
Several time quantums, there is no under given transmission mode in the first time unit set of the first carrier
Row distribution, the given transmission mode is one of transmission mode 1 to 8 transmission mode.
3. method according to claim 1 or 2, which is characterized in that the step A further includes following steps:
Step A1. receives the second information；
Wherein, second information is used for determining that the second time quantum set, the second time quantum set include just whole
Several time quantums；The first time window belongs to the second time quantum set.
4. according to the method described in claim 3, it is characterized in that, the step A further includes following steps:
Step A2. receives third information；
Wherein, the third information is used for determining that third time quantum set, the third time quantum set include just whole
Several time quantums；The UE assumes the CP of the corresponding Second Type of downlink distribution in object time unit set；Institute
Object time unit set is stated by the time among the second time quantum set and except the third time quantum set
Unit composition；The first time window belongs to the object time unit set.
5. method according to claim 1 or 2, which is characterized in that the step B further includes following steps:
Step B0. receives physical layer signaling；
Wherein, the physical layer signaling includes the scheduling information of first wireless signal, the scheduling information include MCS, RV,
At least one of HARQ process number, NDI or occupied running time-frequency resource or the combination of its composition.
6. a kind of method in base station for supporting variable C P, wherein include the following steps:
Step A. sends synchronization signal on first carrier；
Step B. sends the first wireless signal in the first time window of first carrier；
Wherein, the synchronization signal corresponds to the CP of the first kind；First wireless signal transmits on PDSCH, and described first
Wireless signal corresponds to the CP of Second Type；CP type corresponding to unicast service includes the first kind on a carrier wave
The CP of CP and the Second Type；The duration of the CP of the Second Type be greater than the first kind CP it is lasting when
Between.
7. according to the method described in claim 6, it is characterized in that, the step A further includes following steps:
Step A0. sends the first information；
Wherein, the first information is used for determining that first time unit set, the first time unit set include just whole
Several time quantums, there is no under given transmission mode in the first time unit set of the first carrier
Row distribution, the given transmission mode is one of transmission mode 1 to 8 transmission mode.
8. method according to claim 6 or 7, which is characterized in that the step A further includes following steps:
Step A1. sends the second information；
Wherein, second information is used for determining that the second time quantum set, the second time quantum set include just whole
Several time quantums；The first time window belongs to the second time quantum set.
9. according to the method described in claim 8, it is characterized in that, the step A further includes following steps:
Step A2. sends third information；
Wherein, the third information is used for determining that third time quantum set, the third time quantum set include just whole
Several time quantums；The CP of the downlink distribution corresponding Second Type of the base station in object time unit set；It is described
Object time unit set is single by the time among the second time quantum set and except the third time quantum set
Member composition；The first time window belongs to the object time unit set.
10. method according to claim 6 or 7, which is characterized in that the step B further includes following steps:
Step B0. sends physical layer signaling；
Wherein, the physical layer signaling includes the scheduling information of first wireless signal, the scheduling information include MCS, RV,
At least one of HARQ process number, NDI or occupied running time-frequency resource or the combination of its composition.
11. a kind of user equipment for supporting variable C P, wherein including following module:
- the first receiving module: for receiving synchronization signal on first carrier；
- the second receiving module: for receiving the first wireless signal in the first time window of first carrier；
Wherein, the synchronization signal corresponds to the CP of the first kind；First wireless signal transmits on PDSCH, and described first
Wireless signal corresponds to the CP of Second Type；CP type corresponding to unicast service includes the first kind on a carrier wave
The CP of CP and the Second Type；The duration of the CP of the Second Type be greater than the first kind CP it is lasting when
Between.
12. a kind of base station equipment for supporting variable C P, wherein including following module:
- the first sending module: for sending synchronization signal on first carrier；
- the second sending module: for sending the first wireless signal in the first time window of first carrier；
Wherein, the synchronization signal corresponds to the CP of the first kind；First wireless signal transmits on PDSCH, and described first
Wireless signal corresponds to the CP of Second Type；CP type corresponding to unicast service includes the first kind on a carrier wave
The CP of CP and the Second Type；The duration of the CP of the Second Type be greater than the first kind CP it is lasting when
Between.
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