CN108024337A

CN108024337A - A kind of subframe instruction, determine method and device

Info

Publication number: CN108024337A
Application number: CN201610959266.8A
Authority: CN
Inventors: 赵丽; 赵锐; 房家奕; 李媛媛
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-11-03
Filing date: 2016-11-03
Publication date: 2018-05-11
Anticipated expiration: 2036-11-03
Also published as: CN108024337B

Abstract

This application discloses a kind of instruction of subframe, determine method and device, be used for transmission business with to avoid the subframe for not being suitable for transmission business.A kind of subframe that the application provides determines method, including：Determine the sub-frame information of predetermined period, including the information that whether there is the subframe that cannot be used for transmission business in predetermined period, and, when there is the information for the subframe that cannot be used for transmission business in predetermined period, positional information of the subframe that cannot be used for transmission business in predetermined period is further included in the sub-frame information；According to the sub-frame information of the predetermined period, determine to cannot be used for the subframe of transmission business.

Description

A kind of subframe instruction, determine method and device

Technical field

This application involves field of communication technology, more particularly to a kind of subframe to indicate, determine method and device.

Background technology

In Long Term Evolution (Long Term Evolution, LTE) device-to-device (Device to Device, D2D), Node outside due to covering can not receive the system main information block that evolved base station (Evolved NodeB, eNB) issues (Master Information Block, MIB), covering exterior node lead directly to broadcast channel (Physical by physics Sidelink Broadcast CHannel, PSBCH) channel acquisition such as system bandwidth, uplink-downlink configuration, direct frame number (Direct Frame Number, DFN)/DFN subframes, and synchronous priority relevant information.Receiving node is by receiving PSBCH Information, time division duplex (Time Division Duplex, TDD) system can send industry according to uplink-downlink configuration in sub-frame of uplink Business, frequency division duplex (Frequency Division Duplex, FDD) send business in up-link carrier, carry out node and communicate Purpose.Since LTE D2D communications are pre-configured by being carried out to covering exterior node so that covering exterior node obtains synchronous subframe letter Breath, limits synchronous subframe and cannot be used for service subframe.

And in LTE vehicles and any object (Vehicle-to-Everything, V2X), except synchronous subframe and TDD Downlink subframe in system cannot be used for service subframe, it is also contemplated that：First, LTE V2X and dedicated short-range communication (Dedicated Short Range Communications, DSRC) system detectio that coexists reserves subframe (abbreviation first kind subframe), and this first Class subframe is not used in transmission business, specially receives signal, is to be used to detect subframe existing for other systems；2nd, system frame period It is pre- that the system detectio that the downlink subframe in synchronous subframe, TDD system and LTE V2X and DSRC coexist is excluded in 10240ms After staying subframe, it is impossible to the remaining subframe (referred to as the second class subframe) divided exactly by bit table length (Bitmap length).More than this Two class subframes equally cannot be used for service subframe.The subframe that LTE V2X systems need to exclude for above two at present, to covering Interior nodes process flow is not clear and definite；Exterior node is covered due to only knowing system information by PSBCH, current LTE D2D's PSBCH contents are not changed, and covering exterior node can not ensure not send business in the subframe being excluded, and may be produced in first kind subframe Raw interference, or send business in the reserved subframe that cannot be divided exactly by Bitmap length and lead to not be properly received.

In LTE D2D, due to covering outside node can not receive evolved base station (evolved Node B, eNB) and issue Host system message block (Master Information Block, MIB), covering exterior node following information is transmitted by PSBCH：

Table 1：Existing D2D PSBCH contents

Receiving node can send business according to uplink-downlink configuration by receiving PSBCH information, TDD system in sub-frame of uplink, FDD sends business in up-link carrier, carries out node and communicates.Since LTE D2D communications are pre- by being carried out to covering exterior node Configuration so that covering exterior node obtains synchronous sub-frame information, limits synchronous subframe and cannot be used for service subframe.Cover exterior node Pass through the ascending-descending subframes configuration information in PSBCH；Covering interior nodes know uplink and downlink by detecting the mib information of PSBCH Frame configuration information, LTE D2D nodes do not send business in downlink subframe.

In LTE V2X, it is impossible to be used in the situation of service subframe is as follows：

Situation one：Synchronous subframe cannot be used for service subframe；

Situation two：Downlink subframe in TDD system cannot be used for service subframe；

Situation three：When LTE V2X and DSRC coexist, some subframes may be reserved and detected for different system, it is impossible to be used in Service subframe, i.e., above-mentioned first kind subframe；

Situation four：After excluding synchronous subframe, the downlink subframe in TDD system and first kind subframe, remaining subframe is carried out Logical number, since system frame period is 10240ms, Bitmap length may not be divided exactly by 10240ms, so being Uniting, there may be the service subframe that cannot be divided exactly by Bitmap length, third generation collaborative project (3rd at frame period end Generation Partnership Project, 3GPP) wireless access network (Radio Access Network, RAN) 1 advised The subframe that these cannot be divided evenly calmly is configured in system frame period, it is impossible to be used in business by as reserved subframe after being broken up Send.

In conclusion the subframe excluded is needed in LTE V2X for above-mentioned first kind subframe and the second class subframe, in covering Node processing flow do not have it is clear and definite, covering exterior node due to only knowing system information by PSBCH, if according to current LTE The PSBCH contents of D2D, the subframe that covering exterior node can not ensure not to be excluded at these send business, may be in first kind Frame produces interference, or sends business in the remaining subframe that cannot be divided exactly by Bitmap length and lead to not be properly received.

The content of the invention

The embodiment of the present application provides a kind of instruction of subframe, determines method and device, with to avoid not being suitable for sending The subframe of business is used for transmission business.

A kind of subframe provided by the embodiments of the present application determines method, including：

Determining the sub-frame information of predetermined period, the son of transmission business is cannot be used for including whether there is in predetermined period The information of frame, also, when there is the information for the subframe that cannot be used for transmission business in predetermined period, in the sub-frame information also Including cannot be used for positional information of the subframe of transmission business in predetermined period；

According to the sub-frame information of the predetermined period, determine to cannot be used for the subframe of transmission business.

In this way, determining with the presence or absence of the information for the subframe that cannot be used for transmission business in predetermined period, also, work as When there is the information for the subframe that cannot be used for transmission business in predetermined period, it can also further determine to cannot be used for transmission business Positional information of the subframe in predetermined period, and then determine to cannot be used for the subframe of transmission business, avoid not being suitable for sending out Send the subframe of business to be used for transmission business, avoid interference or business reception failure, improve system performance.

Alternatively, the subframe that cannot be used for transmission business, including：For the first kind subframe of system detectio, and/ Or, exclude in the downlink subframe in synchronous subframe, tdd systems and the subframe after the first kind subframe cannot be by The second class subframe that bit table length Bitmap length are divided exactly.

Alternatively, the sub-frame information of the definite predetermined period, specifically includes：

Broadcast channel PSBCH is led directly to from physics to obtain in predetermined period with the presence or absence of the subframe that cannot be used for transmission business Information；

When there is the information for the subframe that cannot be used for transmission business in predetermined period, being determined by pre-configured mode cannot For sending positional information of the subframe of business in predetermined period.

Alternatively, the information that whether there is the subframe that cannot be used for transmission business in predetermined period is obtained from the PSBCH, Specifically include：Following information is obtained from the PSBCH：Bit table length information Bitmap length, be used to indicate whether exist Flag information Coexist Subframe Flag of first kind subframe, the flag information for indicating the second class number of sub-frames Reserved Subframe Flag。

Alternatively,

When Bitmap length are 16 or 20, Reserved Subframe Flag=True, represent that predetermined period has Second class subframe；

When Bitmap length are 100, Reserved Subframe Flag=True, represent that predetermined period there are 2 Second class subframe；

As Reserved Subframe Flag=False：

When Bitmap length are 16 or 20, Reserved Subframe Flag=False, predetermined period is represented Without the second class subframe；

When Bitmap length are 100, Reserved Subframe Flag=False, represent that predetermined period has 1 A second class subframe.

Alternatively, when there is the information for the subframe that cannot be used for transmission business in predetermined period, pre-configured mode is passed through Positional information of the definite subframe that cannot be used for transmission business in predetermined period includes：Second class subframe is in predetermined period Offset indicator variable ReservedOffsetIndicator, and meet following equation：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

Wherein, DFN represents direct frame number, and DFN subframe number represent DFN subframe numbers；

When there are 2 the second class subframes in predetermined period, transmission business is cannot be used for by what pre-configured mode determined Positional information of the subframe in predetermined period includes the two the offset indicator variables of the second class subframe in predetermined period： ReservedOffsetIndicator1 and ReservedOffsetIndicator2, and ReservedOffsetIndicator1 and ReservedOffsetIndicator2 are satisfied by above-mentioned formula.

Alternatively, when there is the information for the subframe that cannot be used for transmission business in predetermined period, pre-configured mode is passed through Positional information of the definite subframe that cannot be used for transmission business in predetermined period includes：First kind subframe is in predetermined period Offset indicator variable CoexistOffsetIndicator, and meet following equation：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

Wherein, DFN represents direct frame number, and DFN subframe number represent DFN subframe numbers.

Alternatively, according to predefined rule, the sub-frame information of the predetermined period is determined.

Alternatively, the predefined rule, including：Since direct frame number DFN0, each predetermined period has and cannot use In the subframe of the business of transmission, if exceeded DFN1023, then sequentially setting cannot be used for sending each DFN backward since DFN0 The subframe of business；

Alternatively, according to equally distributed mode, predetermined period where the different subframes that cannot be used for transmission business is determined Interval, the interval of different predetermined periods is identical.

Alternatively, the predefined rule, including：

The pre-defined relative position that cannot be used for the subframe of transmission business and the subframe of predetermined period specific location；Or Person,

The pre-defined relative position that cannot be used for the subframe of transmission business and the synchronous subframe of predetermined period；Alternatively,

Pre-define equally distributed sub-frame interval.

Alternatively, the predetermined period, is synchronizing cycle.

A kind of subframe indicating means provided by the embodiments of the present application, including：

Determining the sub-frame information of predetermined period, the son of transmission business is cannot be used for including whether there is in predetermined period The information of frame；

Send the sub-frame information of the predetermined period.

Alternatively, broadcast channel PSBCH is led directly to by physics, sends the sub-frame information of the predetermined period.

Alternatively, when there is the information for the subframe that cannot be used for transmission business in predetermined period, in the sub-frame information Further include positional information of the subframe that cannot be used for transmission business in predetermined period.

Alternatively, the predetermined period, is synchronizing cycle.

A kind of subframe determining device provided by the embodiments of the present application, including：

First module, for determining the sub-frame information of predetermined period, cannot use including whether there is in predetermined period In the information of the subframe of the business of transmission, also, when there is the information for the subframe that cannot be used for transmission business in predetermined period, institute State the positional information that the subframe that cannot be used for transmission business is further included in sub-frame information in predetermined period；

Second unit, for the sub-frame information according to the predetermined period, determines to cannot be used for the subframe of transmission business.

Alternatively, the first module is specifically used for：

Alternatively,

As Reserved Subframe Flag=False：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

Alternatively, the first module determines the sub-frame information of the predetermined period according to predefined rule.

Alternatively, the predefined rule, including：

Pre-define equally distributed sub-frame interval.

Alternatively, the predetermined period, is synchronizing cycle.

A kind of subframe instruction device provided by the embodiments of the present application, including：

Determination unit, for determining the sub-frame information of predetermined period, cannot use including whether there is in predetermined period In the information of the subframe of the business of transmission；

Transmitting element, for sending the sub-frame information of the predetermined period.

Alternatively, the transmitting element leads directly to broadcast channel PSBCH by physics, sends the subframe letter of the predetermined period Breath.

Alternatively, the predetermined period, is synchronizing cycle.

Brief description of the drawings

In order to illustrate more clearly of the technical solution in the embodiment of the present application, make required in being described below to embodiment Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present application, for this For the those of ordinary skill in field, without creative efforts, other can also be obtained according to these attached drawings Attached drawing.

Fig. 1 is the flow diagram that a kind of subframe provided by the embodiments of the present application determines method；

Fig. 2 is a kind of flow diagram of subframe indicating means provided by the embodiments of the present application；

Fig. 3 is a kind of structure diagram of subframe determining device provided by the embodiments of the present application；

Fig. 4 is a kind of structure diagram of subframe instruction device provided by the embodiments of the present application；

Fig. 5 is a kind of structure diagram of communicator provided by the embodiments of the present application.

Embodiment

The subframe that cannot be used for transmission business described in the technical solution provided in the embodiment of the present application, such as can be The first kind subframe or the second class subframe.

When vehicle and the Bitmap length in vehicle (Vehicle-to-Vehicle, V2V) pond (pool) are 16, most 15 subframes of multiresidue；When the Bitmap length of V2V pool are 20, at most remaining 19 subframes；When V2V pool's When Bitmap length are 100, at most remaining 99 subframes.

When the Bitmap length of V2V pool are 16 or 20, it is distributed to if broken up in 64 synchronizing cycles, some May there may be 1 reserved subframe some synchronizing cycles without reserved subframe in synchronizing cycle.As the Bitmap of V2V pool When length is 100, it is distributed to if broken up in 64 synchronizing cycles, there may be 1 reserved subframe some synchronizing cycles, some There are 2 reserved subframes synchronizing cycle.

First kind subframe is used only to detect the presence of other systems, only receives and does not send out, as long as so each synchronizing cycle most There is 1 can complete relevant function more.

Two methods provided by the embodiments of the present application introduced below.

Method one：It whether there is the information for the subframe that cannot be used for transmission business by PSBCH explicit instructions, also, work as When there is the information for the subframe that cannot be used for transmission business in this synchronizing cycle, determine to cannot be used for sending by pre-configured mode Positional information of the subframe of business within this synchronizing cycle.

By taking the second class subframe as an example, in PSBCH, increase 1bit configured information Reserved Subframe Flag, refer to Show in this synchronizing cycle and whether there is the second class subframe.

When due to Bitmap length being 16 or 20, some synchronizing cycles without the second class subframe, consider that SFN and DFN can Can be inconsistent, indicate whether there is the second class subframe in this synchronizing cycle, it is necessary to increase in PSBCH to increase reliability, then Second class subframe is calculated in this synchronization by ReservedOffsetIndicator1 and ReservedOffsetIndicator2 Position in cycle.There are the second class subframe in synchronizing cycles all when being 100 Bitmap length, only some synchronizations There is 1 the second class subframe in cycle, there is 2 aliquant synchronous subframes some synchronizing cycles.Similarly consider System Frame Number (System Frame Number, SFN) and DFN may be inconsistent, and in order to increase reliability, this synchronization week is indicated in PSBCH There are 1 or 2 a second class subframes in phase, then by ReservedOffsetIndicator1 and ReservedOffsetIndicator2 calculates position of the second class subframe in this synchronizing cycle.

As Reserved Subframe Flag=True：

The value of ReservedOffsetIndicator1 and ReservedOffsetIndicator2 meets equation below：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator

When Bitmap length are 16 or 20, Reserved Subframe Flag=True represent this synchronizing cycle There is the second class subframe；

When Bitmap length are 100, Reserved Subframe Flag=True represent that this synchronizing cycle has 2 A second class subframe；

As Reserved Subframe Flag=False：

When Bitmap length are 16 or 20, Reserved Subframe Flag=False represent this synchronizing cycle Without the second class subframe；

When Bitmap length are 100, Reserved Subframe Flag=False represent that this synchronizing cycle has 1 A second class subframe.

The sub-frame offset for how determining the second class subframe within this synchronizing cycle in (160ms) is described below.

Because each synchronizing cycle is up to 2 the second class subframes, increase by 2 offset synchronizing cycle indicator variables： ReservedOffsetIndicator1 and ReservedOffsetIndicator2, the initial value of the two values is all synchronous week Phase 160ms.

System according to pre-configured Bitmap length, pre-configured ReservedOffsetIndicator1 and The value of ReservedOffsetIndicator2, specific processing are as follows：

When the Bitmap length of V2V pool are 16 or 20, it is only necessary to pre-configured Values of the ReservedOffsetIndicator1 between [0,159], it is impossible to and synchronous sub-frame configuration SyncOffsetIndicator values are identical, can not be equal to downlink subframe during common carrier； ReservedOffsetIndicator2 values are initial value 160ms；

When V2V pool Bitmap length be 100 when, it is necessary to pre-configured ReservedOffsetIndicator1 and Values of the ReservedOffsetIndicator2 between [0,159], it is impossible to and synchronous sub-frame configuration SyncOffsetIndicator values are identical, can not be equal to downlink subframe during common carrier；

Similarly, first kind subframe sets 1 only for the presence for detecting whether other systems, at most each synchronizing cycle It is a, it can so increase offset indicator variable of the first kind subframe within synchronizing cycle：CoexistOffsetIndicator；Together When PSBCH in increase 1bit Coexist Subframe Flag, to indicate this synchronizing cycle with the presence or absence of the first kind son Frame, if in the presence of meeting following equation：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator

In conclusion, it is necessary to carry out following change in method one：

PSBCH needs to make following modification：

Table 2：The length of modification is the LTE V2X PC5 PSBCH contents of 48bits

Pre-configured (preconfigSync in SL-Preconfiguration) needs to make following modification：

Increase by 3 pre-configured sub-frame offset variables：

For the second class subframe：ReservedOffsetIndicator1 and ReservedOffsetIndicator2；

For first kind subframe：CoexistOffsetIndicator；

Increase determines the definite formula of the position of the second class subframe and first kind subframe in synchronizing cycle：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator

Method two：Using it is pre-defined it is regular by the way of implicit instruction cannot be used for transmission business subframe related letter Breath：

, it is necessary to determine to whether there is the second class subframe in synchronizing cycle by PSBCH instructions in method one.And PSBCH It is likely due to collide, it is unreliable to cause to receive, and for the exclusion for reserving subframe has an impact.

In order to further reduce signaling consumption, there may be in the following manner to be indicated：

Mode one：Configure the offset of the second class subframe and first kind subframe：

Can by way of pre-configured or configuration, the second class subframe in prespecified fortunately each synchronizing cycle and First kind subframe relative to this synchronizing cycle sub-frame offset；The mode of the wherein described configuration, can be that covering interior nodes are led to Cross signaling or system information notice obtains the sub-frame offset relevant information, covering exterior node can pass through pre-configured side of dispatching from the factory The clearly described sub-frame offset relevant information of formula.

Whether there is the subframe that cannot be used for transmission business on this synchronizing cycle, can be calculated according to pre-defined rule In the presence of the synchronizing cycle for the subframe that cannot be used for transmission business.Optional implementation is as follows：

There is the subframe that cannot be used for transmission business in each synchronizing cycle backward since DFN0, if exceeding DFN1023, Again again since DFN0, each DFN sequentially sets the subframe that cannot be used for transmission business backward；For example, a total of 64 same Step period, if so reserved subframe can use circulating type processing mode (wraparound modes), from the beginning again beyond 64 Arrangement one time.

Can be according to equally distributed mode, between synchronizing cycle where calculating the different subframes that cannot be used for transmission business Interval；It is uniformly distributed and is just to try to use uniform treatment, such as the subframe that cannot be used for transmission business has 96, it is each synchronous Cycle at least 1 subframe that cannot be used for transmission business, remaining 32 reserved subframes are at interval of distribution synchronizing cycle one A subframe that cannot be used for transmission business, then have 2 subframes that cannot be used for transmission business at interval of a synchronizing cycle.Always It, is uniformly distributed the subframe that cannot be used for transmission business as far as possible in 10240ms.

Mode two：Directly according to specific sub-frame (or referred to as subframe of specific location), it is specified that cannot be used for transmission business Subframe and specific sub-frame relative position：

For example, can be by way of pre-defined, the second class subframe and the first kind that are defined in each synchronizing cycle , can specifically there be implementations below in the position of subframe：

The subframe that definition cannot be used for transmission business is opposite with this synchronizing cycle of specific sub-frame (such as first subframe) Position；

Definition cannot be used for the relative position of the subframe of transmission business and the synchronous subframe of this synchronizing cycle；

The sub-frame interval when subframe that definition cannot be used for transmission business is uniformly distributed；

Downlink subframe when subframe defined below cannot be shared carrier wave：Subframe, Yi Jitong coexists during special carrier Step frame.If running into above-mentioned subframe to postpone forward or backward, it is necessary to define, if beyond this synchronizing cycle subframe, it is necessary to Available subframe is re-mapped by wraparound modes.

Whether this synchronizing cycle has the subframe that cannot be used for transmission business, can calculate and exist according to pre-defined rule It cannot be used for the synchronizing cycle of the subframe of transmission business.

Each synchronizing cycle has backward since DFN0, if exceed DFN1023, then it is again each since DFN0 DFN sequentially sets the subframe that cannot be used for transmission business backward；

Can be according to equally distributed mode, between synchronizing cycle where calculating the different subframes that cannot be used for transmission business Interval, specifically with the description of above-mentioned related content, details are not described herein.

The illustration of several specific embodiments is given below.

Embodiment 1：One Bitmap length of method is 16.

Assuming that PSBCH length is 48bits, Bitmap length is 16, and the second class number of sub frames is 97, some synchronizing cycles have 1 A second class subframe, some synchronizing cycles have 2.First kind subframe needs to configure 1 in each synchronizing cycle.

Need to break up in system resource according to the second class subframe, carry out following processing.Assuming that in preconfigured information ReservedOffsetIndicator1=35；ReservedOffsetIndicator2=160；Assuming that CoexistOffsetIndicator=132；There may be following different processing different synchronizing cycles：

Need to send 1 the second class subframe, and 1 first kind subframe；

Assuming that in system-frame the 10th synchronizing cycle need set the second class subframe, within the synchronizing cycle, the second class son Frame must is fulfilled for the following formula：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator1=35

Then DFN=163 in the 10th synchronizing cycle；DFN subframe=5 meet the requirement of above-mentioned equation；

First kind subframe must is fulfilled for the following formula：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator=132

Then DFN=173 in the 10th synchronizing cycle；DFN subframe=2 meet the requirement of above-mentioned equation；

The content that PSBCH needs transmit in synchronous subframe (DFN=165, DFN subframe=2) is specific as follows：

Table 3：The PSBCH contents of embodiment one

Any reserved sub-frame information need not be sent；

Assuming that in system-frame the 12nd synchronizing cycle reserved subframe need not be set, the synchronous subframe within the synchronizing cycle The content that PSBCH needs transmit in (DFN=193, DFN subframe=2) is specific as follows：

Table 4：The PSBCH contents of embodiment one

Embodiment 2：One Bitmap length of method are 100.

Assuming that PSBCH length is 48bits, Bitmap length is 100, and the second class number of sub frames is 97, some synchronizing cycles have 1 the second class subframe, there is 2 the second class subframes some synchronizing cycles.First kind subframe needs to configure 1 within each synchronizing cycle It is a.

Need to break up in system resource according to the second class subframe, carry out following processing.Assuming that in preconfigured information ReservedOffsetIndicator1=35；ReservedOffsetIndicator2=128；Assuming that CoexistOffsetIndicator=132；There may be following different processing different synchronizing cycles：

Need to send 1 the second class subframe, and 1 first kind subframe；

Assuming that in system-frame the 10th synchronizing cycle need set 1 reserved subframe, within the synchronizing cycle, the second class son Frame must is fulfilled for the following formula：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator1=35

First kind subframe must is fulfilled for the following formula：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator=132

Table 5：The PSBCH contents of embodiment one

Need to send 2 the second class subframes, and 1 first kind subframe；

Assuming that in system-frame the 12nd synchronizing cycle need set 2 reserved subframes, within the synchronizing cycle, the second class son Frame must is fulfilled for the following formula：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator1=35

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator2=128

Then DFN=195 in the 12nd synchronizing cycle；DFN subframe=5, and DFN=204, DFN subframe=8 meet it is above-mentioned The requirement of equation；

First kind subframe must is fulfilled for the following formula：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator=132

Then DFN=205 in the 12nd synchronizing cycle；DFN subframe=2 meet the requirement of above-mentioned equation；

The content that PSBCH needs transmit in synchronous subframe (DFN=195, DFN subframe=2) is specific as follows：

Table 6：The PSBCH contents of embodiment one

Embodiment 3：For the mode one in the above method two.

Assuming that Bitmap length is 100, the second class number of sub frames is 97, there is 1 the second class subframe some synchronizing cycles, some There are 2 the second class subframes synchronizing cycle.

Assuming that network configuration or the second class subframe in pre-configured each synchronizing cycle originate son relative to this synchronizing cycle The sub-frame offset of frame is 120 and 50, and first kind subframe is 18 relative to the sub-frame offset of this synchronizing cycle of starting subframe.

If using sequential system, there are 2 the second class subframes, relative synchronization in 33 synchronizing cycles since DFN0 backward Cycle starting subframe is the 120th and the 50th subframe, and first kind subframe is 18 relative to the sub-frame offset of this synchronizing cycle.From DFN528 (the 528th DFN) starts to DFN1024, and there are 1 the second class subframe, relative synchronization cycle starting subframe in each cycle For the 120th subframe, first kind subframe is 18 relative to the sub-frame offset of this synchronizing cycle.

Embodiment 4：For the mode two of the above method two.

Assuming that it is 80 that system, which defines the second class subframe in each synchronizing cycle relative to the sub-frame offset of this synchronizing cycle, With 159, first kind subframe is 18 relative to the sub-frame offset of this synchronizing cycle.

Assuming that it is 159 that system, which defines the second class subframe in each synchronizing cycle relative to the sub-frame offset of this synchronizing cycle, Corresponding subframe, downlink subframe when being common carrier, system definition postpones backward, due to 159 be this synchronizing cycle last Subframe postpones for this synchronizing cycle of first subframe, it is necessary to by wraparound modes, if first subframe can use, The subframe is that the second class subframe relative to the sub-frame offset of this synchronizing cycle is 159 corresponding subframes.

If using even distribution pattern, there are 2 the second class in the synchronizing cycle of the odd-numbered since DFN0 backward Frame, relative synchronization cycle starting subframe is the 80th and the 1st subframe, first kind subframe relative to this synchronizing cycle sub-frame offset For 18.There are 1 the second class subframe, relative synchronization cycle in the synchronizing cycle of even-numbered since DFN0 backward, each cycle Starting subframe is the 80th subframe, and first kind subframe is 18 relative to the sub-frame offset of this synchronizing cycle.

Since reserved number of sub frames is 97, by above-mentioned uniform treatment, there remains 1 reserved subframe, since DFN0 to The synchronizing cycle of even-numbered afterwards, starting sequence arrangement has 2 the second class subframes, and relative synchronization cycle starting subframe is the 80th With the 1st subframe, first kind subframe is 18 relative to the sub-frame offset of this synchronizing cycle.

In conclusion referring to Fig. 1, a kind of subframe provided by the embodiments of the present application determines method, including：

S101, the sub-frame information for determining predetermined period, cannot be used for sending out including in the predetermined period whether there is The information of the subframe of business is sent, also, when there is the information for the subframe that cannot be used for transmission business in the predetermined period, institute State the positional information that the subframe that cannot be used for transmission business is further included in sub-frame information in the predetermined period；

S102, the sub-frame information according to the predetermined period, determine to cannot be used for the subframe of transmission business.

Wherein, the predetermined period, it is alternatively possible to be the synchronizing cycle in above-described embodiment.Certainly, the default week Phase can also be the cycle of other types or duration.

Alternatively, the subframe that cannot be used for transmission business, including：For the first kind subframe of system detectio, and/ Or, exclude in the downlink subframe in synchronous subframe, tdd systems and the subframe after the first kind subframe cannot be by The second class subframe that bit table length divides exactly.

Alternatively,

As Reserved Subframe Flag=False：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

Alternatively, the predefined rule, including：

Pre-define equally distributed sub-frame interval.

Correspondingly, referring to Fig. 2, a kind of subframe indicating means provided by the embodiments of the present application, including：

S201, the sub-frame information for determining predetermined period, cannot be used for sending industry including in predetermined period whether there is The information of the subframe of business；

S202, the sub-frame information for sending the predetermined period.

With the above method accordingly, referring to Fig. 3, a kind of subframe determining device provided by the embodiments of the present application, including：

First module 11, cannot including whether there is in predetermined period for determining the sub-frame information of predetermined period Information for the subframe for sending business, also, when there is the information for the subframe that cannot be used for transmission business in predetermined period, Positional information of the subframe that cannot be used for transmission business in predetermined period is further included in the sub-frame information；

Second unit 12, for the sub-frame information according to the predetermined period, determines to cannot be used for the subframe of transmission business.

Alternatively, the first module is specifically used for：

Alternatively,

As Reserved Subframe Flag=False：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

Alternatively, the predefined rule, including：

Pre-define equally distributed sub-frame interval.

Correspondingly, referring to Fig. 4, a kind of subframe instruction device provided by the embodiments of the present application, including：

Determination unit 21, cannot including whether there is in predetermined period for determining the sub-frame information of predetermined period Information for the subframe for sending business；

Transmitting element 22, for sending the sub-frame information of the predetermined period.

Referring to Fig. 5, a kind of communicator provided by the embodiments of the present application, including：

Processor 600, for reading the program in memory 620, performs following process：

Alternatively, the first module is specifically used for：

Alternatively,

As Reserved Subframe Flag=False：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

Alternatively, the processor 600 determines the sub-frame information of the predetermined period according to predefined rule.

Alternatively, the predefined rule, including：

Pre-define equally distributed sub-frame interval.

Transceiver 610, for data to be received and sent under the control of processor 600.

Wherein, in Figure 5, bus architecture can include the bus and bridge of any number of interconnection, specifically by processor 600 The various circuits for the memory that the one or more processors and memory 620 of representative represent link together.Bus architecture is also Various other circuits of such as ancillary equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, no longer it is described further herein.Bus interface provides interface.Transceiver 610 can To be multiple element, i.e., including transmitter and receiver, there is provided for the list to communicate over a transmission medium with various other devices Member.For different user equipmenies, user interface 630, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 600 is responsible for bus architecture and common processing, and memory 620 can store processor 600 and hold Used data during row operation.

Optionally, processor 600 can be CPU (centre buries device), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), (Field-Programmable Gate Array, scene can compile FPGA Journey gate array) or CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices).

Above-described communicator, can be used as another subframe determining device provided by the embodiments of the present application.Certainly, The communicator is also used as another subframe instruction device provided by the embodiments of the present application, at this time：

Control transceiver 610 sends the sub-frame information of the predetermined period.

Alternatively, the processor 600 controls transceiver 610 to lead directly to broadcast channel PSBCH by physics, sends described pre- If the sub-frame information in cycle.

It should be noted that in the embodiment of the present application, the portion in the sub-frame information of the predetermined period is sent by PSBCH Point or full detail, be only a kind of optional embodiment, the subframe of the predetermined period can also be sent by other means Part or all of information in information.

Communicator described in above the embodiment of the present application, for example, it may be the terminal device such as user equipment.Certainly, Communicator provided by the embodiments of the present application can also be the equipment such as network side equipment, such as base station, and the embodiment of the present application is to logical The type of T unit is not limited.

In conclusion the embodiment of the present application is configured with the second class sub-frame offset and first kind by pre-configured mode Vertical shift, alternatively, setting frame or sub-frame offset, including fixed position offset or the phase with specific sub-frame by predefined mode To offset；Also, increase indication field, including the synchronizing cycle with the presence or absence of the second class in the PSBCH that synchronous subframe is sent The information of frame and first kind subframe, so as to according to frame and sub-frame information and the second class sub-frame offset and first kind subframe Offset, determines the subframe position of the second class subframe and first kind subframe.Relative to existing LTE D2D schemes and LTE V2X sides Case, the perfect indicating means for reserving subframe in system.It is smaller for the change of existing LTE V2X schemes, there is flexibility And autgmentability, it ensure that the whole network node does not send business in the subframe (subframe that cannot be used for business transmission) being excluded, subtract Lack the interference produced in the subframe being excluded, ensure system transmission performance.

It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program Product.Therefore, the application can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the application can use the computer for wherein including computer usable program code in one or more The shape for the computer program product that usable storage medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.) Formula.

The application is with reference to the flow according to the method for the embodiment of the present application, equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided The processors of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices, which produces, to be used in fact The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a square frame or multiple square frames.

Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application God and scope.In this way, if these modifications and variations of the application belong to the scope of the application claim and its equivalent technologies Within, then the application is also intended to comprising including these modification and variations.

Claims

1. a kind of subframe determines method, it is characterised in that this method includes：

The sub-frame information of predetermined period is determined, including whether there is the subframe that cannot be used for transmission business in predetermined period Information, also, when there is the information for the subframe that cannot be used for transmission business in predetermined period, further included in the sub-frame information It cannot be used for positional information of the subframe of transmission business in predetermined period；

2. according to the method described in claim 1, it is characterized in that, the subframe that cannot be used for transmission business, including：For The first kind subframe of system detectio, and/or, exclude the downlink subframe in synchronous subframe, tdd systems and described The the second class subframe that cannot be divided exactly in subframe after a kind of subframe by bit table length Bitmap length.

3. according to the method described in claim 1, it is characterized in that, the sub-frame information of the definite predetermined period, specifically includes：

Broadcast channel PSBCH is led directly to from physics to obtain in predetermined period with the presence or absence of the letter for the subframe that cannot be used for transmission business Breath；

When there is the information for the subframe that cannot be used for transmission business in predetermined period, determine cannot be used for by pre-configured mode Positional information of the subframe of transmission business in predetermined period.

4. according to the method described in claim 3, it is characterized in that, obtained from the PSBCH in predetermined period with the presence or absence of not It can be used for the information for sending the subframe of business, specifically include：Following information is obtained from the PSBCH：Bit table length information Bitmap length, be used to indicate whether there are flag information Coexist Subframe Flag of first kind subframe, be used for Indicate the flag information Reserved Subframe Flag of the second class number of sub-frames.

5. according to the method described in claim 4, it is characterized in that,

As Reserved Subframe Flag=False：

When Bitmap length are 16 or 20, Reserved Subframe Flag=False, represent that predetermined period does not have Second class subframe；

When Bitmap length are 100, Reserved Subframe Flag=False, represent that predetermined period has 1 the Two class subframes.

6. according to the method described in claim 3, it is characterized in that, it cannot be used for the son of transmission business when existing in predetermined period During the information of frame, the positional information bag of the subframe that cannot be used for transmission business that is determined by pre-configured mode in predetermined period Include：Offset indicator variable ReservedOffsetIndicator of the second class subframe in predetermined period, and meet following public affairs Formula：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

When there is 2 the second class subframes in predetermined period, the subframe that cannot be used for transmission business that is determined by pre-configured mode Positional information in predetermined period includes the two the offset indicator variables of the second class subframe in predetermined period： ReservedOffsetIndicator1 and ReservedOffsetIndicator2, and ReservedOffsetIndicator1 and ReservedOffsetIndicator2 are satisfied by above-mentioned formula.

7. according to the method described in claim 3, it is characterized in that, it cannot be used for the son of transmission business when existing in predetermined period During the information of frame, the positional information bag of the subframe that cannot be used for transmission business that is determined by pre-configured mode in predetermined period Include：Offset indicator variable CoexistOffsetIndicator of the first kind subframe in predetermined period, and meet following public affairs Formula：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

8. according to the method described in claim 1, it is characterized in that, according to predefined rule, the son of the predetermined period is determined Frame information.

9. according to the method described in claim 8, it is characterized in that, the predefined rule, including：Opened from direct frame number DFN0 Beginning, each predetermined period has the subframe that cannot be used for transmission business, if exceed DFN1023, then each DFN since DFN0 Order sets the subframe that cannot be used for transmission business backward；

Alternatively, according to equally distributed mode, between predetermined period where determining the different subframes that cannot be used for transmission business Every the interval of different predetermined periods is identical.

10. according to the method described in claim 8, it is characterized in that, the predefined rule, including：

The pre-defined relative position that cannot be used for the subframe of transmission business and the subframe of predetermined period specific location；Alternatively,

Pre-define equally distributed sub-frame interval.

11. according to the method described in any claim of claim 1~10, it is characterised in that the predetermined period, for synchronous week Phase.

12. a kind of subframe indicating means, it is characterised in that this method includes：

The sub-frame information of predetermined period is determined, including whether there is the subframe that cannot be used for transmission business in predetermined period Information；

Send the sub-frame information of the predetermined period.

13. according to the method for claim 12, it is characterised in that broadcast channel PSBCH is led directly to by physics, described in transmission The sub-frame information of predetermined period.

14. according to the method for claim 12, it is characterised in that cannot be used for transmission business when existing in predetermined period During the information of subframe, position letter of the subframe that cannot be used for transmission business in predetermined period is further included in the sub-frame information Breath.

15. according to the method described in any claim of claim 12~14, it is characterised in that the predetermined period, for synchronous week Phase.

A kind of 16. subframe determining device, it is characterised in that including：

First module, for determining the sub-frame information of predetermined period, cannot be used for sending out including in predetermined period whether there is The information of the subframe of business is sent, also, when there is the information for the subframe that cannot be used for transmission business in predetermined period, the son Positional information of the subframe that cannot be used for transmission business in predetermined period is further included in frame information；

17. device according to claim 16, it is characterised in that the subframe that cannot be used for transmission business, including：With In the first kind subframe of system detectio, and/or, exclude downlink subframe in synchronous subframe, tdd systems and described The the second class subframe that cannot be divided exactly in subframe after first kind subframe by bit table length Bitmap length.

18. device according to claim 16, it is characterised in that the first module is specifically used for：

19. device according to claim 18, it is characterised in that obtain in predetermined period and whether there is from the PSBCH The information of the subframe of transmission business is cannot be used for, is specifically included：Following information is obtained from the PSBCH：Bit table length information Bitmap length, be used to indicate whether there are flag information Coexist Subframe Flag of first kind subframe, be used for Indicate the flag information Reserved Subframe Flag of the second class number of sub-frames.

20. device according to claim 19, it is characterised in that

As Reserved Subframe Flag=False：

21. device according to claim 18, it is characterised in that cannot be used for transmission business when existing in predetermined period During the information of subframe, the positional information of the subframe that cannot be used for transmission business that is determined by pre-configured mode in predetermined period Including：Offset indicator variable ReservedOffsetIndicator of the second class subframe in predetermined period, and meet following Formula：

(10*DFN+DFN subframe number) mod 160=ReservedOffsetIndicator；

22. device according to claim 18, it is characterised in that cannot be used for transmission business when existing in predetermined period During the information of subframe, the positional information of the subframe that cannot be used for transmission business that is determined by pre-configured mode in predetermined period Including：Offset indicator variable CoexistOffsetIndicator of the first kind subframe in predetermined period, and meet following Formula：

(10*DFN+DFN subframe number) mod 160=CoexistOffsetIndicator；

23. device according to claim 16, it is characterised in that the first module determines institute according to predefined rule State the sub-frame information of predetermined period.

24. device according to claim 23, it is characterised in that the predefined rule, including：From direct frame number DFN0 Start, each predetermined period has the subframe that cannot be used for transmission business, if exceed DFN1023, then since DFN0 it is each DFN sequentially sets the subframe that cannot be used for transmission business backward；

25. device according to claim 23, it is characterised in that the predefined rule, including：

Pre-define equally distributed sub-frame interval.

26. according to the device described in any claim of claim 16~25, it is characterised in that the predetermined period, for synchronous week Phase.

A kind of 27. subframe instruction device, it is characterised in that including：

Determination unit, for determining the sub-frame information of predetermined period, cannot be used for sending out including in predetermined period whether there is Send the information of the subframe of business；

28. device according to claim 27, it is characterised in that the transmitting element leads directly to broadcast channel by physics PSBCH, sends the sub-frame information of the predetermined period.

29. device according to claim 27, it is characterised in that cannot be used for transmission business when existing in predetermined period During the information of subframe, position letter of the subframe that cannot be used for transmission business in predetermined period is further included in the sub-frame information Breath.

30. according to the device described in any claim of claim 27~29, it is characterised in that the predetermined period, for synchronous week Phase.