CN110178404A

CN110178404A - A kind of resource using method, relevant apparatus and system

Info

Publication number: CN110178404A
Application number: CN201780083533.2A
Authority: CN
Inventors: 曾勇波; 才宇; 王达; 王键
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-01-20
Filing date: 2017-02-10
Publication date: 2019-08-27
Anticipated expiration: 2037-02-10
Also published as: CN110178404B; WO2018133133A1

Abstract

This application discloses a kind of resource using method, relevant apparatus and systems.The method can include: base station sends the first instruction information and/or second indication information to terminal；Wherein, can the reservation subframe that the first instruction information is used to indicate in first resource set be used for transmission the first signal, and it is tactful that the second indication information is used to indicate using for the reservation subframe.When the reservation subframe in first resource set can be used in transmitting the first signal, the reservation subframe that terminal is indicated according to base station or pre-configuration uses strategy, utilizes the first signal described in the reservation sub-frame transmission.Resource utilization can be improved in above scheme.

Description

A kind of resource using method, relevant apparatus and system

Technical field

This application involves field of communication technology, in particular to a kind of resource using method, relevant apparatus and system.

Background technique

LTE-V (LTE-Vehicle) is the car networking standard based on long term evolution (Long Term Evolution, LTE) communication technology.Standardization effort of the 3GPP RAN1 working group in the starting of in August, 2015 LTE-V, research range includes V2V (Vehicle-To-Vehicle, Che-vehicle) communication, V2P (Vehicle-To-Pedestrian, vehicle-pedestrian) communication and V2I (Vehicle to Infrastructure, vehicle and infrastructure network) it communicates, it is referred to as V2X (Vehicle to Everything).Currently, the first edition standard convention of the V2X based on LTE-V has formulated completion.LTE-V is referred to as honeycomb-V2X (Celluar-V2X, C-V2X).

Terminal in car networking can be the terminal of car-mounted terminal (Vehicle-UE, V-UE), handheld terminal (Pedestrian UE, P-UE) or other support V2X functions.

Terminal in car networking can send bypass synchronization signal (Sidelink Synchronization Signal, SLSS), for synchronizing with other terminals.In existing LTE-V standard, the period of SLSS is 160 milliseconds.There are three types of configurations: 0 isochronous resources, 2 isochronous resources or 3 isochronous resources for the quantity of SLSS subframe (also referred to as isochronous resources or synchronous subframe, the synchronization subframe are used to send synchronization signal and broadcast message) in each SLSS transmission cycle.Configuring 0 isochronous resources indicates that terminal cannot send SLSS.

In existing LTE-V standard, V2X resource pool can pass through duplicate bit map (Bitmap) Lai Dingyi.The length (bit number of Bitmap) of Bitmap can take a value in set { 10,16,20,30,40,50,60,100 }.Bitmap, which defines which subframe in V2X resource pool, can be used for transmitting the scheduling instruction (Scheduling Assignment SA) (also referred to as Bypass Control information (Sidelink Control Information, SCI)) and data (Data) of V2X.SLSS subframe is not included in resource pool defined in Bitmap.Available resources (subframe that can be used to transmission V2X data) composition logical resource set of Bitmap instruction, the subframe that can be used for transmitting V2X data can be described as logic subframe.

Specifically, direct frame number (Direct Frame Number, DFN) period (suitable for LTE signal covering outside scene) or System Frame Number (System Frame Number, the SFN) period (suitable for LTE signal covering in scene) in V2X resource can be indicated by integer Bitmap.One DFN period or SFN period include 10240 subframes, and after SLSS subframe, the different surely appointed Bitmap of remaining sub-frame number is divided exactly.Therefore, it is necessary to configure some reservation subframes (Reserved Subframe) to guarantee that the appointed Bitmap of the remaining sub-frame number energy is divided exactly.

Fig. 1 illustratively shows V2X resource pool and SLSS resource, retains configuration of the subframe in the DFN period.In Fig. 1, Bitmap length is 100, i.e., each V2X period includes 100 logic subframes.There are three SLSS subframes in each SLSS period.In addition, some reservation subframes are also evenly distributed in the DFN period, such as DFN213, DFN427.With reference to foregoing teachings it is found that the total quantity of logic subframe and reservation subframe in the DFN period is required to be divided exactly by the length (i.e. 100) of Bitmap.

It should be understood that the quantity of the reservation subframe in each DFN SFN period is related with the length of SLSS resource distribution, Bitmap.The corresponding different reservation sub-frame number of different Bitmap length and different SLSS resource distribution (SLSS number of sub frames in each SLSS period) has been illustrated in table 1.

For example, in SFN/DFN period (include 10240 subframes), when Bitmap length is equal to 16, no matter the how many a SLSS subframes of configuration in a SLSS period, can not need to retain subframe.Because the length in 1 SLSS period is 160 milliseconds, the conveying length of 1 subframe in LTE system is 1 millisecond.So, SLSS number of cycles=10240/160=64 (16 integral multiples), no matter the several SLSS subframes of configuration in SLSS period, the total quantity of SLSS subframe in the DFN/SFN period is all 16 integral multiple, and the SFN/DFN period includes 10240 subframes (16 integral multiples).Therefore, the remaining sub-frame number in the DFN/SFN period except SLSS subframe is also 16 integral multiple, can be divided exactly by the Bitmap that length is 16.

In another example retaining the quantity of subframe at most up to 76 when Bitmap length is 100 bit.Under other configurations, it is also required to configuration different number in the DFN/SFN period and retains subframe.

Bitmap length	0 isochronous resources	1 isochronous resources	2 isochronous resources	3 isochronous resources
16 bits	0	0	0	0
20 bits	0	16	12	8
100 bits	40	76	12	48

Table 1

It can be seen that needing to configure different number in the DFN/SFN period under different configurations and retaining subframe.If it will cause the wastings of resources without using subframe is retained.

Summary of the invention

This application provides a kind of resource using method, relevant apparatus and systems, tactful by configuring using for the reservation subframe in V2X resource pool, improve resource utilization.

In a first aspect, applying this application provides a kind of resource using method in network equipment side, it may include: the network equipment sends the first instruction information and/or second indication information to terminal；Wherein, can the reservation subframe that the first instruction information is used to indicate in first resource set be used for transmission the first signal, and it is tactful that the second indication information is used to indicate using for the reservation subframe；It is described to be used to indicate terminal using the first signal described in the reservation sub-frame transmission using strategy.

Second aspect, this application provides a kind of resource using methods, it applies in terminal side, can include: when the reservation subframe in first resource set can be used in transmitting the first signal, the reservation subframe that terminal can be indicated according to the network equipment or pre-configuration uses strategy, utilizes the first signal described in the reservation sub-frame transmission.

In the application, terminal can determine that can the reservation subframe be used for transmission the first signal according to the instruction (the i.e. described first instruction information) of the network equipment.The trigger condition that terminal can also be pre-configured according to agreement, such as whether channel busy degree is more than preset threshold etc., to determine that can the reservation subframe be used for transmission the first signal.

Implement the resource using method of first aspect and second aspect description, it can be achieved that the use for retaining subframe, improves resource utilization.

In the application, it can determine that can the reservation subframe be used for transmission the first signal by following two ways.

The first, the mode of network equipments configuration

The network equipment can send the first instruction information to terminal, and can be used to indicate the reservation subframe be used for transmission the first signal.In the specific implementation, the network equipment can carry the first instruction information in system information block (SIB).

Optionally, the first instruction information can be the enable bit (enable bit) of 1 bit.The value of the enable bit can indicate that the reservation subframe can be used in transmitting first signal for 1, otherwise, can indicate that the reservation subframe cannot be used for transmitting First signal.The network equipment can determine the value of the enabled bit according to preset trigger condition or other strategies.For example, determining the value of the enabled bit according to channel busy ratio (CBR).

Second, the mode that agreement is pre-configured

Agreement, which can be pre-configured the reservation subframe, can be used in transmitting the condition of first signal.In this way, terminal can determine that can the reservation subframe be used for transmission first signal according to the condition, without obtaining the instruction of the network equipment.

The condition can be related to the geographical location of terminal, and the first signal of the reservation sub-frame transmission can be used for instance in the terminal outside base station signal covering.The condition can also be related to channel busy degree, such as when channel busy ratio (CBR) is higher than preset threshold, then the reservation subframe can be used in transmitting the first signal.In practical application, agreement, which can also be pre-configured the reservation subframe, can be used in transmitting the other conditions of first signal, here with no restriction.

In conjunction with above two implementation, the part in the first resource set, which retains subframe, can be also used for transmitting the purposes other than first signal, i.e., the only a part of reservation subframe can be used in transmitting the first signal.In response to this, it can indicate which retains subframe and can be used in transmitting the first signal by bit map (Bitmap).It is broadcasted in SIB message in the specific implementation, the network equipment can carry the Bitmap.

In the application, the strategy that uses for retaining subframe may include following two kinds:

The first uses strategy: the terminal for being configured as high priority preferentially utilizes the first signal of the reservation sub-frame transmission.Use strategy one i.e. priority policy.Specifically, can provide that certain form of terminal or certain form of business can preferentially use the reservation subframe by way of network equipments configuration or pre-configuration.

Such as:

1. the low terminal of transmission power (such as pedestrian's terminal) is configured as preferentially using the reservation subframe.It can avoid the higher terminal of other transmission powers (such as car-mounted terminal) terminal low to the transmission power in this way and form interference.

2. being configured as preferentially using the reservation subframe using the terminal of random sources selection mode.It should be understood that general terminal selects logical resource using passive listening, using the available resources listened to, avoid that resource contention occurs.If selecting logical resource using random sources selection mode, it is likely that and resource contention occurs for other terminals.But if being able to use the reservation subframe using the terminal of random sources selection mode, i.e., random selection retains subframe, then can generate resource contention using the terminal that logic subframe carries out the first signal of transmission to avoid with other.

3. the terminal for not retransmitting the first signal is configured as preferentially using the reservation subframe.It should be understood that the terminal for not retransmitting the first signal using the reservation subframe, can simplify for the use instruction for retaining subframe.

4. the terminal for not choosing appropriate resources is configured as preferentially using the reservation subframe during listening to resource selection.In this way, resource utilization can be improved, so that more multiple terminals is able to carry out the first signal of transmission.

5. terminal, which can be configured as, preferentially uses the reservation subframe when sending the first signal of high priority.In this way, can be handled differently to the business of different priorities, the traffic handing capacity of system is improved.

6. the terminal without resource reservation is configured as preferentially using the reservation subframe in resource selection.It is understood that, if the terminal without resource reservation all reselects resource in each transmission, if this terminal carries out the first signal of transmission using subframe is retained, then it can also be avoided that avoid the instruction during resource reservation and generate resource contention using the terminal that logic subframe carries out the first signal of transmission with other.About the explanation of the resource reservation, foregoing teachings are please referred to, which is not described herein again.

It should be noted that above-mentioned several examples can individually be implemented.Above-mentioned several examples are not limited to, the priority policy, which can also configure other kinds of terminal or other kinds of business, can preferentially use the reservation subframe.

Second using tactful: utilizing the first signal of reservation subframe and logic sub-frame transmission for the condition that meets.Specifically, spacing of the reservation subframe and logic subframe for meeting condition on resource location needs to meet preset condition, the preset condition can include: the spacing is less than or equal to value at the first time or the spacing is equal to the first time value.There are mapping relations between the reservation subframe for meeting condition and logic subframe, are defined by the preset condition.

Specifically, the value of the first time value can be indicated by the network equipment or is pre-configured by agreement.For example, the network equipment can carry the first time value in SIB message if the value of the first time value is indicated by the network equipment.Example is only a kind of implementation of the embodiment of the present invention, can should not constitute restriction in practical application with difference.Existing LTE-V standard provides that the largest interval of the first signal transmitted between re-transmission for the first time is 15ms.In order to be consistent with existing standard, the value range of the first time value can be defined as [1,15].

For above two using strategy, can be indicated using network equipments configuration by the way of it is described using strategy, can also in such a way that agreement is pre-configured come regulation using any using tactful.

Specifically, if indicated by the way of network equipments configuration it is described using strategy, the network equipment can to terminal send instruction information, be used to indicate current system using it is any using strategy.In the application, which can be known as second indication information.In the specific implementation, the network equipment can carry the second indication information in SIB message.For example, expanding a domain in SIB message carrys out instruction terminal using any using strategy.Example is only a kind of implementation of the embodiment of the present invention, can should not constitute restriction in practical application with difference.

In the application, in order to avoid the use for retaining subframe influences existing resource reservation mechanism, terminal side provides following two kinds of operations:

The operation of the first terminal side: in order to avoid the use for retaining subframe influences existing resource reservation mechanism, terminal can be indicated the use for retaining subframe, and be adjusted to the resource reservation of next transmission block.

Specifically, terminal, which can be sent, indicates information about the use for retaining subframe, it is described to be used to indicate whether terminal uses the reservation subframe using instruction information.In the specific implementation, described can be carried in the control information that the terminal is sent using instruction information, such as in scheduling instruction.Specifically, the scheduling instruction (SA) that the terminal is sent can be extended, carried using the reserved place (Reserved bits) in scheduling instruction described using instruction information.

It is described to may be used to indicate the resource reservation for adjusting next transmission block using instruction information in the application.

Specifically, if the transmission for the first time of current transmission block uses a reservation subframe, then the resource reservation in SA can be indicated to be adjusted, specifically include: 1 is added to the resource reservation position of next transmission block, and the time interval between the first biography and re-transmission to next transmission block adds 1.Accordingly, if receiving end detects that the transmission for the first time of first signal has used reservation subframe, it can then be indicated according to the resource reservation adjusted in SA, the resource reservation of next transmission block is carried out plus 1 adjusts, also the time interval between the first biography to next transmission block and re-transmission carries out plus 1 adjusts, and receiving end is allowed to be properly received the next transmission block for transmitting and retransmitting for the first time.

Specifically, can indicate to be adjusted to the resource reservation in SA, specifically include: the resource reservation position of next transmission block is added 1 if the re-transmission of current transmission block has used a reservation subframe.Accordingly, if receiving end detects that the re-transmission of first signal has used reservation subframe, it can then be indicated according to the resource reservation adjusted in SA, the resource reservation of next transmission block is carried out plus 1 adjusts, receiving end is allowed to be properly received next transmission block of re-transmission.

Optionally, it in order to avoid receiving end leads to (data acceptance error) parsing mistake using instruction information due to not receiving described, can simply specify: when the transmission for the first time of some transmission block of terminal or re-transmission are using the reservation resource, eventually End needs to carry out resource gravity treatment for the transmission of next transmission block.In other words, once terminal has used the reservation subframe, terminal does not then carry out resource reservation for subsequent transmission, but listens to channel and resource selection again.

Second of terminal side operation: terminal re-starts logical resource number with the reservation subframe that can be used in transmitting the first signal for the logic subframe in the first resource set, obtains the new logic subframe that can be used in transmitting the first signal.In other words, terminal can will be used for transmission the reservation subframe of the first signal as new logic subframe.

In the application, the distribution mode for retaining subframe in the first resource set can be centralized distribution mode, be also possible to uniform formula distribution mode.In some embodiments of the present application, distribution mode of the reservation subframe in the first resource set can be determined according to the quantity for retaining subframe.Specifically, centralized distribution mode can be used, otherwise use uniform formula distribution mode when the quantity for retaining subframe is less than preset quantity (such as 16).The distribution mode for retaining subframe can be reasonably determined in this way, it can be achieved that balancing time delay and resource number complexity both of these problems to the greatest extent.

The third aspect, this application provides a kind of network equipments, for executing the resource using method of first aspect description.The network equipment can include: memory and the processor coupled with the memory, transmitter and receiver, wherein: the transmitter is used to send signal with to terminal or other network equipments, the signal that the receiver is used to receive terminal or other network equipments are sent, the resource that the memory is used to store first aspect description uses the realization code of method of completing the square, the processor is for executing the program code stored in the memory, i.e. any one provided resource using method in the possible embodiment of execution first aspect or first aspect.

Fourth aspect, this application provides a kind of terminals, for executing the resource using method of second aspect description.The terminal can include: memory and the processor coupled with the memory, transmitter and receiver, wherein: the transmitter is used to send signal with to the network equipment or other terminals, the signal that the receiver is used to receive the network equipment or other terminals are sent, the resource that the memory is used to store second aspect description uses the realization code of method of completing the square, the processor is for executing the program code stored in the memory, i.e. any one provided resource using method in the possible embodiment of execution second aspect or second aspect.

5th aspect, provides a kind of network equipment, including multiple functional modules, for executing method provided by any one in first aspect or the possible embodiment of first aspect accordingly.

6th aspect, provides a kind of terminal, including multiple functional modules, for executing method provided by any one in second aspect or the possible embodiment of second aspect accordingly.

7th aspect, provides a kind of communication system, the communication system includes: the network equipment and terminal, in which:

The network equipment be used for the terminal instruction first resource set in reservation subframe can be used for transmission the first signal and it is described retain subframe using strategy；The terminal is used for when the reservation subframe in first resource set can be used in transmitting the first signal, according to base station instruction or pre-configuration the reservation subframe using strategy, utilizes the first signal described in the reservation sub-frame transmission.

In some alternative embodiments, the base station can be the network equipment that the third aspect or the 5th aspect describe.The base station is also possible to the terminal referred in fourth aspect or the 6th aspect.

Eighth aspect provides a kind of computer readable storage medium, and the program code for realizing the resource using method of first aspect description is stored on the readable storage medium storing program for executing, which includes executing instruction for the resource using method of operation first aspect description.

9th aspect, provides a kind of computer readable storage medium, and the program code for realizing the resource using method of second aspect description is stored on the readable storage medium storing program for executing, which includes the resource using method of operation second aspect description It executes instruction.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments of the present invention are briefly described below.

Fig. 1 be this application involves V2X resource pool schematic diagram；

Fig. 2 be this application involves a kind of car networking schematic diagram of a scenario；

Fig. 3 be this application involves two kinds of LTE-V communication transmission mode schematic diagram；

Fig. 4 be this application involves resource reservation schematic diagram；

Fig. 5 is the hardware structure schematic diagram for the terminal that one embodiment of the application provides；

Fig. 6 is the hardware structure schematic diagram for the network equipment that one embodiment of the application provides；

Fig. 7 is the schematic diagram provided by the present application that available reservation resource is indicated by bit map；

Fig. 8 A is a kind of mapping schematic diagram for retaining subframe and logic subframe provided by the present application；

Fig. 8 B is another mapping schematic diagram for retaining subframe and logic subframe provided by the present application；

Fig. 9 is the schematic diagram of the former number of adjustment logic of the offer of the application；

Figure 10 is the flow diagram for the resource using method that one embodiment of the application provides；

Figure 11 is a kind of schematic diagram of signal stream provided by the present application；

Figure 12 is the mapping schematic diagram of another reservation subframe and logic subframe provided by the present application；

Figure 13 is the flow diagram for the resource using method that another embodiment of the application provides；

Figure 14 is the flow diagram for the resource using method that the further embodiment of the application provides；

Figure 15 is the structural schematic diagram of one embodiment network equipment provided and terminal of the application.

Specific embodiment

The term that presently filed embodiment part uses is only used for explaining the specific embodiment of the application, and is not intended to limit the application.

Fig. 2 shows this application involves LTE-V application scenarios.As shown in Fig. 2, LTE-V communication system can include: base station 100 and various V2X terminals.Wherein, V2X terminal can include: car-mounted terminal (V-User Equipment), handheld terminal (P-User Equipment), infrastructure terminal or other support V2X functions terminal.

As shown in Fig. 2, the communication between V2X terminal can be divided into it is following several:

V2V (Che-vehicle) communication, i.e., can carry out information exchange and prompting between vehicle 200, most typical application is for anti-collision safety system between vehicle.

V2I (vehicle-infrastructure) communication, i.e. vehicle 200 can communicates with the infrastructure 400, such as traffic lights, roadblock of road side etc., the road managements information such as acquisition traffic light signals timing.

V2P (vehicle-pedestrian) communication, i.e., vehicle 200 can on road pedestrian 300 or non-motor vehicle communicate, such as to pedestrian 300 issue safety warning.

Above-mentioned several situations are not limited to, LTE-V may also include the V2X communication of other forms.For example, V2N (Vehicle-To-Network, vehicle-internet) is communicated, i.e., vehicle 200 can be connected to Cloud Server 500 by mobile communications network, the application functions such as the navigation that is provided using Cloud Server 500, amusement, antitheft.

Specifically, the V2X terminal in LTE network coverage area can access LTE network by base station 100, the broadcast message that base station 100 is sent is received, or communicated with other V2X terminals by LTE network.It is to be understood that being in LTE network coverage area in the terminal in the serving cell of base station 100, it is in outside LTE network coverage area in the terminal outside the serving cell of base station 100.

Currently, being directed to V2V, LTE-V provides two kinds of complementary V2X transmission modes, respectively as shown in (A) and (B) in Fig. 3, in which:

1, direct communication is transmitted, and can refer to (A) in Fig. 3, can be based on D2D (Device-To-Device, equipment room) adjacent communication service (ProSe, Proximity Services) in LTE standard.In the specific implementation, the PC5 interface of newest standards formulation can be used, high speed and high density communication are realized.In the environment of no LTE network covers, the direct communication transmission mode can be taken between neighbouring car-mounted terminal.It should be noted that the direct communication transmission mode is also suitable the environment of LTE network covering.

2, network communication and transmission mode can refer to (B) in Fig. 3, can broadcast by LTE broadcast mechanism by the message of V2X server side, such as control information or system information etc. to V2X terminal.

, can also be in conjunction with implementing it should be noted that 2 kinds of transmission modes shown in (A) and (B) in Fig. 3 can individually be implemented, the application is with no restriction.

In existing LTE-V standard, V2X terminal can select resource by passive listening.Specifically, after V2X terminal, which listens to channel, available resources, selection is transmitted for the first time and the frequency resource of possible re-transmission, and a Counter Value (randomly choosing in a certain range) is randomly choosed for subsequent transmission (transmission of subsequent transmission block) when selecting resource, being set as N, (N is positive integer, such as 6).If resource gravity treatment does not occur, V2X terminal can selected frequency resource, every primary transmission of completion, Counter Value subtract 1 all before use in the transmission of subsequent n times, until Counter Value is kept to 0, listen to channel and selection resource again again at this time.

In the application, transmission block (Transmission Block, TB) is a data packet on shared channel, may include a MAC layer (Medium Access Control, MAC protocol Data Unit (Protocol Data Unit, PDU)).One transmission block can at most transmit 2 times: transmitting and retransmit for the first time.The primary transmission (transmit or retransmit for the first time) of one transmission block occupies 1 subframe in time.

In the application, V2X data may include scheduling instruction (SA) and data (Data) of the transmission in the same transmission block (subframe).Wherein, scheduling instruction (SA) is used to indicate out the resource reservation carried out for subsequent transmission.In existing LTE-V standard, scheduling instruction (SA) includes control information as shown in Table 2:

Table 2

It should be noted that table 2 illustrate only scheduling instruction in this application involves relevant information, about scheduling instruction include other information can refer to existing LTE-V standard, do not repeat here.

Specifically, when carrying out the instruction of reserved resource, under V2X terminal can carry in the scheduling of current transmission block instruction The reserved resource location of one transmission block, for the first time time interval between transmission and re-transmission, and transmit for the first time and the information such as frequency resource position of re-transmission.Here, since the corresponding scheduling instruction (SA) of each data (Data) is transmitted in same subframe with data (Data), therefore, scheduling instruction (SA) does not need the time-domain position of designation date (Data).

For example, as shown in figure 4, transmission block 1-3 is retransmitted.The SA of the transmission block 1 transmitted for the first time has indicated the resource reservation carried out for transmission block 2, specifically include: the time interval between transmission block 1 and transmission block 2 be 100ms (the Resource reservation=100ms i.e. in table 2, the resource reservation of transmission block 2 is at the subframe after the 100ms of transmission block 1), transmission block 2 for the first time transmit and retransmit between time interval be gap, transmission block 2 for the first time transmit with retransmit frequency resource position be △ f.Example is used only for explaining present context, should not constitute restriction.

In the application, scheduling instruction can be extended, carry instruction information using reserved bit therein (Reserved bits), be used to indicate whether V2X terminal has used reservation subframe in V2X resource pool.On how to use reservation subframe to can refer to subsequent embodiment, do not repeat here.

The terminal 10 of some embodiments of the present application offer is shown with reference to Fig. 5, Fig. 5.The terminal of car-mounted terminal, handheld terminal, infrastructure terminal or other support V2X functions may be implemented into terminal 10.As shown in figure 5, terminal 10 can include: input/output module (including audio input output module 118, keyboard input module 116 and display 120 etc.), user interface 102, one or more terminal handlers 104, transmitter 106, receiver 108, coupler 110, antenna 114 and memory 112.These components can be connected by bus or other way, and Fig. 5 by bus for being connected.Wherein:

Communication interface 101 can be used for terminal 10 and other communication equipments, such as V2X terminal or base station, be communicated.In the specific implementation, communication interface 101 can include: direct communication interface (such as PC5 interface) and network communication interface (such as Uu interface).Wherein, the direct communication interface can be used for carrying out D2D communication with neighbouring V2X terminal, and the network communication interface can be used for being communicated with base station, specifically refer to Fig. 3.It is not limited to the direct communication interface and the network communication interface, terminal 10 can be configured with other kinds of communication interface, such as WiFi interface, wired communication interface etc..

Antenna 114 can be used for the electromagnetic wave being converted into the electromagnetic energy in transmission line in free space, or the electromagnetic wave in free space is converted into the electromagnetic energy in transmission line.Coupler 110 is used to the signal of communication that antenna 114 receives being divided into multichannel, distributes to multiple receivers 108.

Transmitter 106 can be used for carrying out transmitting processing to the signal that terminal handler 104 exports.In some embodiments of the present application, transmitter 106 may include direct communication transmitter 1061 and network communication transmitter 1063.Wherein, direct communication transmitter 1061 can support terminal 10 to neighbouring V2X terminal transmission signal, and network communication transmitter 1063 can support terminal 10 to Base Transmitter signal.

Receiver 108 can be used for carrying out reception processing to 114 received signal of antenna.In some embodiments of the present application, receiver 108 may include direct communication receiver 1081 and network communication receiver 1083.Wherein, direct communication receiver 1081 can support terminal 10 to receive the signal of neighbouring V2X terminal transmission, and network communication receiver 1083 can support terminal 10 to receive the signal of Base Transmitter.

In some embodiments of the present application, transmitter 106 and receiver 108 can regard a radio modem as.In terminal 10, the quantity of transmitter 106 and receiver 108 may each be one or more.

In addition to transmitter 106 shown in fig. 5 and receiver 108, terminal 10 may also include other communication components, such as GPS module, bluetooth (Bluetooth) module, Wireless Fidelity (Wireless Fidelity, Wi-Fi) module etc..Direct communication signal and the network communication signal being not limited in LTE-V, terminal 10 can also support other wireless communication signals, such as satellite-signal, Short-wave signal etc..

The input/output module can be used for realizing the interaction between terminal 10 and user/external environment, can mainly include audio input output module 118, keyboard input module 116 and display 120 etc..In the specific implementation, the input/output module may also include that camera, touch screen and sensor etc..Wherein, the input/output module passes through user interface 102 and is communicated with terminal handler 104.

Memory 112 is coupled with terminal handler 104, for storing various software programs and/or multiple groups instruction.In the specific implementation, memory 112 may include the memory of high random access, and it may also comprise nonvolatile memory, such as one or more disk storage equipments, flash memory device or other non-volatile solid-state memory devices.Memory 112 can store an operating system (following abbreviation systems), such as the embedded OSs such as ANDROID, IOS, WINDOWS or LINUX.Memory 112 can also store network communication program, which can be used for and one or more optional equipments, one or more terminal devices, one or more network equipments are communicated.Memory 112 can also store user interface program, the user interface program can be shown by patterned operation interface by the content image of application program is true to nature, and received user by input controls such as menu, dialog box and keys and operated to the control of application program.

In some embodiments of the present application, memory 112 can be used for storing realization program of the resource using method in 10 side of terminal of one or more embodiments offer of the application.The realization for the resource using method that one or more embodiments about the application provide, please refers to subsequent embodiment.

Terminal handler 104 can be used for reading and executing computer-readable instruction.Specifically, terminal handler 14 can be used for calling the program that is stored in memory 112, for example, the application the resource using method that provides of one or more embodiments in the realization program of 10 side of terminal, and execute the instruction that the program includes.

It should be noted that terminal 10 shown in fig. 5 is only a kind of implementation of the embodiment of the present invention, in practical application, terminal 10 can also include more or fewer components, here with no restriction.

The network equipment 20 of some embodiments of the present application offer is shown with reference to Fig. 6, Fig. 6.The base station 100 in Fig. 2 may be implemented into the network equipment 20.As shown in fig. 6, the network equipment 20 can include: communication interface 203, one or more network equipment processors 201, transmitter 207, receiver 209, coupler 211, antenna 213 and memory 205.These components can be connected by bus or other way, and Fig. 6 by bus for being connected.Wherein:

Communication interface 203 can be used for the network equipment 20 and other communication equipments, such as V2X terminal or other network equipments, be communicated.In the specific implementation, communication interface 203 can be network communication interface, such as LTE (4G) communication interface, 5G or the following communication interface newly eated dishes without rice or wine.It is not limited to wireless communication interface, the network equipment 20 can be configured with wired communication interface to support that the backhaul link between wire communication, such as a network equipment 20 and other network equipments 20 is exactly wire communication connection.

Antenna 213 can be used for the electromagnetic wave being converted into the electromagnetic energy in transmission line in free space, or the electromagnetic wave in free space is converted into the electromagnetic energy in transmission line.Coupler 211 can be used for messenger being divided into multichannel, distribute to multiple receivers 209.

Transmitter 207 can be used for carrying out transmitting processing to the signal that network equipment processor 201 exports, and be used for other network equipments or V2X terminal transmission signal.Receiver 209 can be used for carrying out reception processing to 213 received signal of antenna, for receiving the signal of other network equipments or V2X terminal transmission.In some embodiments of the present application, transmitter 207 and receiver 209 can regard a radio modem as.In the network equipment 20, the number of transmitter 207 and receiver 209 Amount may each be one or more.

Memory 205 is coupled with network equipment processor 201, for storing various software programs and/or multiple groups instruction.In the specific implementation, memory 205 may include the memory of high random access, and it may also comprise nonvolatile memory, such as one or more disk storage equipments, flash memory device or other non-volatile solid-state memory devices.Memory 205 can store an operating system (following abbreviation systems), such as the embedded OSs such as uCOS, VxWorks, RTLinux.Memory 205 can also store network communication program, which can be used for and one or more optional equipments, one or more terminal devices, one or more network equipments are communicated.

In some embodiments of the present application, memory 205 can be used for storing realization program of the resource using method in 20 side of the network equipment of one or more embodiments offer of the application.The realization for the resource using method that one or more embodiments about the application provide, please refers to subsequent embodiment.

Network equipment processor 201 can be used for carrying out wireless channel management, implement calling and the foundation and dismounting of communication link, and the handover for user equipment in this control zone controls etc..In specific implementation, network equipment processor 201 can include: management/communication module (Administration Module/Communication Module, AM/CM) (center for speech channel exchange and information exchange), basic module (Basic Module, BM) (for completing call treatment, signaling processing, wireless resource management, the management of Radio Link and circuit maintenance function), code conversion and submultiplex unit (Transcoder and SubMultiplexer, TCSM) (for completing multiplexing and demultiplexing and code conversion function) etc..

In the embodiment of the present invention, network equipment processor 201 can be used for reading and executing computer-readable instruction.Specifically, network equipment processor 201 can be used for calling the program that is stored in memory 205, for example, the application the resource allocation methods that provide of one or more embodiments in the realization program of 20 side of the network equipment, and execute the instruction that the program includes.

In the specific implementation, the network equipment 20 may be embodied as base transceiver station, wireless transceiver, a basic service set (BSS), an extended service set (ESS), NodeB, eNodeB etc..The network equipment 20 may be embodied as several different types of base stations, such as macro base station, micro-base station etc..The network equipment 20 can support different wireless technologys, such as cell wireless access technology or WLAN wireless access technology etc..

It should be noted that the network equipment 20 shown in fig. 6 is only a kind of implementation of the embodiment of the present invention, in practical application, the network equipment 20 can also include more or fewer components, here with no restriction.

Based on aforementioned LTE-V application scenarios, terminal 10 and the network equipment 20, in terminal transmission V2X data, in order to use the reservation subframe in V2X resource pool, resource utilization is improved, the embodiment of the invention provides a kind of resource using methods.

The broad inventive concept of the application can include: strategy is used to the reservation sub-frame configuration in V2X resource pool, and be pre-configured or network equipments configuration by way of indicate that can the reservation subframe be used for transmission V2X data, if can be used in transmitting V2X data, terminal can retain subframe described in strategy use according to described use.Resource utilization can be improved in this way.

In addition, terminal can indicate the use for retaining subframe, and be adjusted to the instruction of the resource reservation of subsequent transmission if terminal has used the reservation subframe in current transmission.In this way, terminal just will not influence existing resource reservation mechanism to the use for retaining subframe.

Optionally, in order to not influence existing resource reservation mechanism, terminal can be renumberd using the reservation subframe that will be used for transmission V2X data as new logic subframe, and to logical resource pond.

In the application, V2X resource pool can be known as to first resource set, V2X data can be known as to the first signal.No It is limited to LTE-V scene, for the scene of following V2X scene and other similar resources configuration, the application is equally applicable.

The application may include following several key technology points:

(1) determine that can the reservation subframe be used for transmission the first signal

Specifically, can the reservation subframe be used for transmission the first signal can determine in such a way that the network equipment (such as base station) configures or agreement is pre-configured.It is described separately below.

A. the mode of network equipments configuration

The network equipment can send instruction information to terminal, and can be used to indicate the reservation subframe be used for transmission the first signal.In the application, which can be known as to the first instruction information.In the specific implementation, the network equipment can carry the first instruction information in system information block (System Information Block, SIB).

For example, the first instruction information can be the enable bit (enable bit) of 1 bit.The value of the enable bit can indicate that the reservation subframe can be used in transmitting the first signal for 1, otherwise, can indicate that the reservation subframe cannot be used for the first signal of transmission.The network equipment can determine the value of the enabled bit according to preset trigger condition or other strategies.For example, the network equipment can determine the value of the enabled bit according to channel busy ratio (Channel Busy Ratio, CBR), if the value of CBR is more than preset threshold, the enabled bit can be set to 1 by the network equipment.Here, CBR may be defined as the ratio of the subchannel for the thresholding that bypass received signal strength indicator (Sidelink-Received Signal Strength Indication, S-RSSI) is more than pre-configuration or network configuration within observing time (such as 100ms).Here, CBR can also be used to the Congestion Level SPCC of characterization channel.Example is only a kind of implementation of the embodiment of the present invention, can should not constitute restriction in practical application with difference.

In some alternative embodiments, the part in the first resource set retains subframe and can be also used for transmitting the purposes other than the first signal.In the specific implementation, can indicate which retains subframe and can be used in transmitting the first signal by bit map (Bitmap).It is broadcasted in SIB message in the specific implementation, the network equipment can carry the Bitmap.It should be noted that Bitmap herein is to indicate which retains subframe and can be used in transmitting the Bitmap difference for being used to indicate logic subframe referred in the first signal and foregoing Background.For the ease of difference, the Bitmap for being used to indicate logic subframe the first Bitmap can be known as, the Bitmap for being used to indicate the reservation subframe that can be used in transmitting the first signal the 2nd Bitmap can be known as.

Reference table 1 changes greatly it is found that there are many quantity configurations of reservation subframe.In order to facilitate instruction, the reservation subframe that can be used in transmitting the first signal can be indicated come repetition using the 2nd shorter Bitmap, or, length can be used indicates to can be used in transmit the reservation subframe of the first signal for the 2nd Bitmap of 76 (most reservation sub-frame number, can refer to table 1) bits.In the specific implementation, can truncate beyond partial bit when the length of the 2nd Bitmap is beyond the quantity for retaining subframe or will exceed partial bit and set 0.The case where Bitmap 8 reservation subframes of expression of 16 bits has been illustrated in Fig. 7, and 8 bit of tail portion beyond reservation sub-frame number sets 0 in the bitmap, and truncates.Example is used only for explaining the embodiment of the present invention, should not constitute restriction.

B. the mode that agreement is pre-configured

Agreement, which can be pre-configured the reservation subframe, can be used in transmitting the condition of the first signal.In this way, terminal can determine that can the reservation subframe be used for transmission the first signal according to the condition, without obtaining the instruction of the network equipment.

The condition can be related to the geographical location of terminal.For example, the first signal of the reservation sub-frame transmission can be used in the terminal of some predeterminable areas, the terminal of other predeterminable areas cannot then use the first signal of the reservation sub-frame transmission.Optionally, if terminal is in base station signal, covering is outer, and the first signal of the reservation sub-frame transmission can be used in terminal.In this way, Terminal outside achievable base station signal covering can also choose resource and carry out the first signal of transmission.

The condition can also be related to channel busy degree.For example, then the reservation subframe can be used in transmitting the first signal when channel busy ratio (CBR) is higher than preset threshold.In this way, terminal can alleviate channel pressure by retaining the use of subframe when channel busy.

In practical application, agreement, which can also be pre-configured the reservation subframe, can be used in transmitting the other conditions of the first signal, here with no restriction.

Specifically, agreement can be pre-configured: if the condition that the reservation subframe can be used in transmitting the first signal is satisfied, all or part of reservation subframe can be used in transmitting the first signal.It should be understood that not needing to indicate to retain subframe by the 2nd Bitmap if whole reservation subframes can be used for transmission the first signal.

(2) determine the reservation subframe uses strategy

The application mainly provides two kinds for the reservation subframe using strategy, and description developed below.

A. using strategy one: the terminal for being configured as high priority preferentially utilizes the first signal of the reservation sub-frame transmission.Use strategy one i.e. priority policy.Specifically, can provide that certain form of terminal or certain form of business can preferentially use the reservation subframe by way of network equipments configuration or pre-configuration.Such as:

2. being configured as preferentially using the reservation subframe using the terminal of random sources selection mode.It should be understood that general terminal selects logical resource using passive listening, using the idling-resource listened to, avoid that resource contention occurs.If selecting logical resource using random sources selection mode, it is likely that and resource contention occurs for other terminals.But if being able to use the reservation subframe using the terminal of random sources selection mode, i.e., random selection retains subframe, then can generate resource contention using the terminal that logic subframe carries out the first signal of transmission to avoid with other.

6. the terminal without resource reservation is configured as preferentially using the reservation subframe in resource selection.It should be understood that the probability that resource contention can occur for subsequent transmission is bigger if terminal is not that subsequent transmission carries out resource reservation.However, if this terminal is able to use reservation subframe and carries out the first signal of transmission resource contention can be generated using the terminal that logic subframe carries out the first signal of transmission to avoid with other.About the explanation of the resource reservation, foregoing teachings are please referred to, which is not described herein again.

B. using strategy two: utilizing the first signal of reservation subframe and logic sub-frame transmission for the condition that meets.Specifically, spacing of the reservation subframe and logic subframe for meeting condition on resource location needs to meet preset condition, the preset condition can include: the spacing is less than or equal to value at the first time or the spacing is equal to the first time value.There are mapping relations between the reservation subframe for meeting condition and logic subframe, are defined by the preset condition.

Fig. 8 illustratively shows the logic subframe for meeting condition and retains a kind of mapping relations between subframe.As shown in figure 8, the two subframes are used for transmission the first signal together when position X of the logic subframe on physical resource differs offset (the i.e. described first time value) with position (X+offset) of the reservation subframe on physical resource.That is: terminal association uses the two subframes, and the transmission for the first time and re-transmission of the first signal are carried out in the two subframes.The two subframes meet a kind of preset condition, it may be assumed that retain the spacing of subframe and logic subframe on resource location and be equal to the first time value.Y and Y+offset in figure illustrate that another group meets the logic subframe of the preset condition and retain subframe.

It is understood that, since physical location of the reservation subframe in first resource set is known (can refer to Fig. 1), it therefore, is also determining with the resource location for retaining the logic subframe that spacing of the subframe on resource location is equal to the first time value.

Fig. 9 illustratively shows the logic subframe for meeting condition and retains another mapping relations between subframe.As shown in figure 9, retain subframe (X+offset) can and the reservation subframe before multiple logic subframes (i.e. from logic subframe X to whole subframes logic subframe (X+offset-1)) in any one logic subframe be used for transmission the first signal together.Any one logic subframe in the multiple logic subframe of the reservation subframe and the front meets another preset condition, it may be assumed that the difference of position and reservation subframe position on physical resource of the logic subframe on physical resource is less than or equal to offset (the i.e. described first time value).

It is understood that, since physical location of the reservation subframe in first resource set is known (can refer to Fig. 1), it therefore, is also determining with the resource location for retaining whole logic subframes that spacing of the subframe on resource location is less than or equal to the first time value.

The scene for being suitable for V2X bis- times transmission (transmit and retransmit for the first time) using strategy two.The reservation subframe for meeting condition and logic subframe are used to carry out the transmission for the first time and re-transmission of the first signal.Existing LTE-V standard provides that the largest interval of the first signal transmitted between re-transmission for the first time is 15ms.In order to be consistent with existing standard, the value range of the first time value can be defined as [1,15].Specifically, the value of the first time value can be indicated by the network equipment or is pre-configured by agreement.For example, the network equipment can carry the first time value in SIB message if the value of the first time value is indicated by the network equipment.Example is only a kind of implementation of the embodiment of the present invention, can should not constitute restriction in practical application with difference.

Strategy is used for two kinds described in above-mentioned key technology point (two): described using strategy one and described using strategy two, can be indicated by the way of network equipments configuration it is described using strategy, can also agreement be pre-configured by way of come regulation using it is any using strategy.

(3) terminal side operates.

A. operate one: terminal, which is sent, indicates information about the use for retaining subframe, described to be used to indicate whether terminal uses the reservation subframe using instruction information.

In the specific implementation, described can be carried in the control information that the terminal is sent using instruction information, such as in scheduling instruction.Specifically, the scheduling instruction (SA) that the terminal is sent can be extended, the reserved place (Reserved of scheduling instruction is utilized Bits) described using instruction information to carry.

For example, the reserved place for defining 1 bit in SA is described using information is indicated, for the convenience of description, being expressed as " UsingReservedIndicator ".It as UsingReservedIndicator=1, indicates that terminal has used the reservation subframe, otherwise, does not use the reservation subframe.

Specifically, UsingReservedIndicator=1 can indicate that the re-transmission of the transmission block will use and retain subframe when the transmission for the first time of transmission block uses logic subframe.When the transmission for the first time of transmission block is using subframe is retained, UsingReservedIndicator=1 can indicate that the current transmission (transmitting for the first time) of the transmission block uses reservation subframe.

It is described to may be used to indicate the resource reservation for adjusting next transmission block using instruction information in the application.It should be understood that the resource reservation parameters in the SA as shown in table 2 are the concepts on logical resource, it does not include the reservation subframe.Therefore, when terminal uses a reservation subframe in current transmission (transmit or retransmit for the first time), terminal needs to carry out the resource reservation instruction of next transmission block plus 1 operation, a subframe is delayed, in the time domain to ensure that receiving end can be properly received next transmission block (transmit and/or retransmit for the first time).

Specifically, if the transmission for the first time of current transmission block uses a reservation subframe, then the resource reservation in SA can be indicated to be adjusted, it specifically includes: the resource reservation position (can refer to the Resource reservation in table 2) to next transmission block plus 1, and the time interval (can refer to the Time gap in table 2) plus 1 between the first biography and re-transmission to next transmission block.Accordingly, if receiving end detects that the transmission for the first time of first signal has used reservation subframe, it can then be indicated according to the resource reservation adjusted in SA, the resource reservation of next transmission block is carried out plus 1 adjusts, also the time interval between the first biography to next transmission block and re-transmission carries out plus 1 adjusts, and receiving end is allowed to be properly received the next transmission block for transmitting and retransmitting for the first time.

Specifically, if the re-transmission of current transmission block has used a reservation subframe, then the resource reservation in SA can be indicated to be adjusted, specifically included: by the resource reservation position (can refer to the Resource reservation in table 2) of next transmission block plus 1.Accordingly, if receiving end detects that the re-transmission of first signal has used reservation subframe, it can then be indicated according to the resource reservation adjusted in SA, the resource reservation of next transmission block is carried out plus 1 adjusts, receiving end is allowed to be properly received next transmission block of re-transmission.

Optionally, in order to avoid receiving end causes (data acceptance error) to parse mistake due to not receiving UsingReservedIndicator, can simply specify: when the transmission for the first time of some transmission block of terminal or re-transmission are using the reservation resource, terminal needs to carry out resource gravity treatment for the transmission of next transmission block.In other words, once terminal has used the reservation subframe, terminal does not then carry out resource reservation for subsequent transmission, listens to channel and resource selection again.

B. operate two: terminal re-starts logical resource number with the reservation subframe that can be used in transmitting the first signal for the logic subframe in the first resource set, obtains the new logic subframe that can be used in transmitting the first signal.In other words, terminal can will be used for transmission the reservation subframe of the first signal as new logic subframe.

For example, as shown in figure 9, subframe will be retained as new logic subframe, with standard defined in number together with existing logic subframe.Logical number adjusted=existing logical number+reservation subframe cumulative amount n.It requires to re-start logical resource number it should be noted that sending terminal and receiving terminal.In this way, terminal carries out resource reservation according to existing resource reservation mechanism, the reserved domain not needed in extension SA comes whether instruction terminal uses the reservation subframe.

In conjunction with above-mentioned key technology point (one) to (three), in the application, the distribution mode for retaining subframe in the first resource set can be centralized distribution mode, be also possible to uniform formula distribution mode.Here, centralized distribution mode refers to: in the first resource set, all reservation subframe continuous adjacents are not interrupted by other types subframe.Uniform formula Distribution mode refers to: in the first resource set, every two retains the other kinds of subframe that identical quantity is all spaced between subframe.

It should be understood that the reservation subframe integrated distribution in the first resource set for re-starting for logical resource number (operation two that can refer to above-mentioned terminal side), it is fairly simple.But if the quantity for retaining subframe is larger, such as 76, then it will lead to biggish time delay.The reservation subframe is evenly distributed in the first resource set, although not will lead to biggish time delay, will increase the difficulty for re-starting logical resource number (operation two that can refer to above-mentioned terminal side).

In some embodiments of the present application, distribution mode of the reservation subframe in the first resource set can be determined according to the quantity for retaining subframe.Specifically, centralized distribution mode can be used, otherwise use uniform formula distribution mode when the quantity for retaining subframe is less than preset quantity (such as 16).The distribution mode for retaining subframe can be reasonably determined in this way, it can be achieved that balancing time delay and resource number complexity both of these problems to the greatest extent.

In the application, two kinds of operations for using terminal side described in strategy and above-mentioned key technology point (three) of two kinds of reservation subframes can be in conjunction with implementation described in above-mentioned key technology point (two), constitute different embodiments, below by in the way of network equipments configuration, further describe.

With reference to a kind of flow diagram for resource using method that one embodiment that Figure 10, Figure 10 are the application provides.Figure 10 embodiment has been implemented in combination in above-mentioned key technology point (two) and has operated two using the terminal side in strategy two and above-mentioned key technology point (three).Description developed below.

S101, base station pass through the enabled bit (enable bit) and offset field notice terminal in SIB message (such as SIB21): whether the 1. reservation subframes are available (enable bit)；2. the reservation subframe uses tactful (offset).Wherein, the enabled bit (enable bit) is a kind of implementation of the first instruction information, and offset is for indicating the first time value.Enable bit and offset are the new domains expanded in SIB message (such as SIB21).

Specifically, the value of the enable bit can indicate that the reservation subframe can be used in transmitting first signal for 1, otherwise, it can indicate that the reservation subframe cannot be used for transmitting first signal.

S102, if enable bit=1, then terminal (including transmitting terminal and receiving end) can will be used for transmission the reservation subframe of first signal as new logical resource, together with original logical resource (defined in existing standard), logical resource number is re-started.About the specific implementation of S102, the operation two of the terminal side in aforementioned key technology point (three) can refer to, which is not described herein again.

Optionally, if defining terminal using resource gravity treatment is carried out after retaining subframe, terminal side can not have to re-start logical resource number.

Whether S103, the spacing of terminal decision logic subframe and reservation subframe on resource location are equal to offset.If it is, executing S104, S105 is otherwise executed.

The logic subframe can be associated with use with the reservation subframe, be used for transmission first signal together by S104 if the spacing of logic subframe and reservation subframe on resource location is equal to offset.Optionally, it can use logic subframe and transmit first signal for the first time, can use and retain subframe re-transmission first signal.Optionally, it can use reservation subframe and transmit first signal for the first time, can use logic subframe and retransmit first signal.

S105, if the spacing of logic subframe and reservation subframe on resource location is not equal to offset, the transmission for the first time and re-transmission of first signal all use original logical resource.

S106-S107, finally, receiving end receive first signal, carry out signal reception processing, such as demodulation, multiplexing.

The corresponding signal flow diagram of method flow shown in Figure 10 can be as shown in figure 11.

Several evolution schemes of Figure 10 embodiment are described below.

Evolution scheme one

(1) difference with Figure 10 embodiment is: a new domain is expanded in SIB message (such as SIB21).For ease of description, which can be known as the domain UsingReservedSubframeIndicator (1 bit).The network equipment can pass through the UsingReservedSubframeIndicator field notice terminal in SIB message: can the subframe that retain be used for transmission first signal and the use strategy for retaining subframe.In other words, the enable bit and offset in Figure 10 embodiment can be merged into an instruction information.

Specifically, UsingReservedSubframeIndicator=0 can indicate that the reservation subframe cannot be used for transmitting first signal.UsingReservedSubframeIndicator=1 can indicate that close adjacent reservation subframe and logic subframe can match use on physical resource position, as the logic subframe for meeting the preset condition and retain subframe, is used for the transmission of first signal together.

(2) similitude with Figure 10 embodiment is:

A. whether the resource location X of terminal decision logic subframe is the resource location for retaining subframe plus UsingReservedSubframeIndicator.If X+UsingReservedSubframeIndicator is the resource location for retaining subframe, first signal is transmitted for the first time using the logic subframe, retransmits first signal using the reservation subframe.If X+UsingReservedSubframeIndicator is not the resource location for retaining subframe, the transmission for the first time and re-transmission of first signal all use original logical resource.

B. in terminal side: if UsingReservedSubframeIndicator=1, then terminal (including transmitting terminal and receiving end) can will be used for transmission the reservation subframe of first signal as new logical resource, together with original logical resource (defined in existing standard), logical resource number is re-started.

The mapping relations for being associated with the logic subframe used and reservation subframe of evolution scheme one can be as shown in figure 12.

Evolution scheme two

(1) difference with Figure 10 embodiment is: base station notifies terminal by the enable bit in SIB message (such as SIB21): can the reservation subframe be used for transmission first signal, if it is available, then indicating how that association uses the reservation subframe and logic subframe by the offset value being pre-configured.

(2) similitude with Figure 10 embodiment is:

A. whether the resource location X of terminal decision logic subframe is the resource location for retaining subframe plus offset.If X+offset is the resource location for retaining subframe, first signal is transmitted for the first time using the logic subframe, retransmits first signal using the reservation subframe.If X+offset is not the resource location for retaining subframe, the transmission for the first time and re-transmission of first signal all use original logical resource.

B. in terminal side: if enable bit=1, then terminal (including transmitting terminal and receiving end) can will be used for transmission the reservation subframe of first signal as new logical resource, together with original logical resource (defined in existing standard), logical resource number is re-started.

Evolution scheme three

(1) difference with Figure 10 embodiment is: base station passes through the offset field notice terminal in SIB message (such as SIB21): it is described retain subframe can be used for transmission first signal and it is described retain subframe using strategy.In other words, the enable bit and offset in Figure 10 embodiment can be merged into an instruction information.

Specifically, offset=0 can indicate that the reservation subframe cannot be used for transmitting first signal, offset can indicate that the reservation subframe can be used in transmitting first signal not equal to 0.

(2) similitude with Figure 10 embodiment is:

It should be noted that same Figure 11 of signal flow diagram of above-mentioned several evolution schemes of Figure 10 embodiment.

In the evolution scheme of Figure 10 embodiment and Figure 10 embodiment, if by the way of being pre-configured, rather than the mode of network equipments configuration, then: can the subframe that retain be used for transmission the mode that first signal can be pre-configured with reference to the agreement of aforementioned key technology (one), such as determine that can the reservation subframe be used for transmission first signal according to geographical location locating for terminal or channel busy degree, it does not repeat here.If can the reservation subframe be used for transmission first signal, using the offset value being pre-configured, terminal can judge that retain subframe is used together with which logic subframe according to the offset value.Terminal side operation is identical with the operation of terminal side described in Figure 10 embodiment.

The evolution scheme for implementing Figure 10 embodiment and Figure 10 embodiment, by way of the SIB signaling of network equipments configuration or pre-configuration, can configure the reservation subframe can be used for transmission first signal and/or it is described retain subframe using strategy.Terminal side only need to simply update logical resource number.The reservation subframe progress V2X transmission can be effectively utilized using the terminal side operation two in strategy two and above-mentioned key technology point (three) by combining in above-mentioned key technology point (two), and small to existing criteria influences, realized simple.

With reference to a kind of flow diagram for resource using method that another embodiment that Figure 13, Figure 13 are the application provides.Figure 13 embodiment has been implemented in combination in above-mentioned key technology point (two) and has operated one using the terminal side in strategy two and above-mentioned key technology point (three).Description developed below.

S201, base station pass through the enabled bit (enable bit) and offset field notice terminal in SIB message (such as SIB21): whether the 1. reservation subframes are available (enable bit)；2. the reservation subframe uses tactful (offset).Wherein, the enabled bit (enable bit) is a kind of implementation of the first instruction information, and offset is for indicating the first time value.Enable bit and offset are the new domains expanded in SIB message (such as SIB21).

Whether S202, the spacing of terminal decision logic subframe and reservation subframe on resource location are less than or equal to offset.If it is, executing S203-S205, S206-S207 is otherwise executed.

S203-S205 is associated with use if the spacing of logic subframe and reservation subframe on resource location is less than or equal to offset The logic subframe and the reservation subframe, are used for transmission first signal, can refer to S203.If transmitting terminal uses the reservation subframe, the reserved bit " UsingReservedIndicator " in SA can be set to 1 by terminal (transmitting terminal), be used to indicate terminal to the use for retaining subframe, be can refer to S204.Finally, receiving end receives first signal, carries out signal reception processing, such as demodulation, multiplexing, can refer to S205.

On how to instruction terminal to the use for retaining subframe, the terminal side operation one in above-mentioned key technology point (three) can refer to, which is not described herein again.

S206-S207, if the spacing of logic subframe and reservation subframe on resource location is greater than offset, the transmission for the first time and re-transmission of first signal all use original logical resource.Finally, receiving end receives first signal, carries out signal reception processing, such as demodulation, multiplexing.

It should be noted that the signal flow diagram of Figure 13 embodiment can same Figure 11.

In Figure 13 embodiment, if by the way of being pre-configured, rather than the mode of network equipments configuration, then: can the subframe that retain be used for transmission the mode that first signal can be pre-configured with reference to the agreement of aforementioned key technology (one), such as determine that can the reservation subframe be used for transmission first signal according to geographical location locating for terminal or channel busy degree, it does not repeat here.If can the reservation subframe be used for transmission first signal, using the offset value being pre-configured, terminal can judge that retain subframe is used together with which logic subframe according to the offset value.Terminal side operation is identical with the operation of terminal side described in Figure 13 embodiment.

Implement Figure 13 embodiment, by way of the SIB signaling of network equipments configuration or pre-configuration, can configure it is described reservation subframe can be used for transmission first signal and/or it is described retain subframe using strategy.Terminal side can indicate the use for retaining subframe, and adjust the resource reservation instruction of next transmission block, and receiving end is allowed to be properly received next transmission block.Both the reservation subframe can be effectively utilized and carried out V2X transmission, and will not influence existing resource reservation mechanism.

With reference to a kind of flow diagram for resource using method that the further embodiment that Figure 14, Figure 14 are the application provides.Figure 14 embodiment has been implemented in combination in above-mentioned key technology point (two) and has operated one using the terminal side in strategy one and above-mentioned key technology point (three).Description developed below.

S301, base station are led to by enabled bit (enable bit) in SIB message (such as SIB21) and the domain priorization mode Know terminal: whether the 1. reservation subframes are available (enable bit)；2. the reservation subframe uses tactful (priorization mode).Wherein, the enabled bit (enable bit) is a kind of implementation of the first instruction information, and priorization mode is for indicating the priority policy.Enable bit and priorization mode are the new domains expanded in SIB message (such as SIB21).

S302, terminal (transmitting terminal) judge whether oneself is the high priority terminal configured in priority policy, such as pedestrian's terminal, if it is, executing S303-S305, otherwise, execute S307.

S303-S305, preferentially using the first signal described in the reservation sub-frame transmission, can refer to S303 if terminal (transmitting terminal) is the high priority terminal configured in priority policy.Specifically, terminal can use the reservation subframe when transmitting for the first time, the reservation subframe can also be used when retransmitting.If transmitting terminal uses the reservation subframe, the reserved bit " UsingReservedIndicator " in SA can be set to 1 by terminal (transmitting terminal), be used to indicate terminal to the use for retaining subframe, be can refer to S304.Finally, receiving end receives first signal, carries out signal reception processing, such as demodulation, multiplexing, can refer to S305.On how to instruction terminal to the use for retaining subframe, the terminal side operation one in above-mentioned key technology point (three) can refer to, which is not described herein again.

S306, if terminal (transmitting terminal) is not the high priority terminal configured in priority policy, terminal can continue to listen to channel and selection resource, or execute other operations, here with no restriction.

The signal flow diagram of Figure 14 embodiment can same Figure 11.

In Figure 14 embodiment, if by the way of being pre-configured, rather than the mode of network equipments configuration, then: can the subframe that retain be used for transmission the mode that first signal can be pre-configured with reference to the agreement of aforementioned key technology (one), such as determine that can the reservation subframe be used for transmission first signal according to geographical location locating for terminal or channel busy degree, it does not repeat here.If can the reservation subframe be used for transmission first signal, pass through the priorirization mode instruction terminal being pre-configured.Terminal side operation is identical with the operation of terminal side described in Figure 14 embodiment.

Implement Figure 14 embodiment, by way of the SIB signaling of network equipments configuration or pre-configuration, can configure it is described reservation subframe can be used for transmission first signal and/or it is described retain subframe using strategy.Terminal side can indicate the use for retaining subframe, and adjust the resource reservation instruction of next transmission block, and receiving end is allowed to be properly received next transmission block.Both the reservation subframe can be effectively utilized and carried out V2X transmission, and will not influence existing resource reservation mechanism.

It should be noted that Figure 10, Figure 13 and Figure 14 respectively illustrate above-mentioned key technology point two and above-mentioned key technology point three combines 3 embodiments implemented.In practical application, it is not limited to above-mentioned 3 embodiments, above-mentioned several key technology points of the application can be combined with being implemented as other embodiments, such as being combined in above-mentioned key technology point (two) using the terminal side operation two in strategy one and above-mentioned key technology point (three) is implemented, which is not described herein again.

It is a kind of network equipment provided by the present application and a kind of structural schematic diagram of terminal referring to Figure 15, Figure 15.The network equipment 30 can be the network equipment in preceding method embodiment, and can be used for configuring the reservation subframe be used for transmission first signal and the use strategy for retaining subframe.Terminal 40 can be the terminal in preceding method embodiment, and the reservation subframe that can be used for being indicated according to the network equipment 30 or agreement is pre-configured utilizes the first signal described in the reservation sub-frame transmission using strategy.

Firstly, as shown in figure 15, the network equipment 30 can include: processing unit 301 and communication unit 303.Wherein:

Processing unit 301 can be used for determining that can the reservation subframe be used for transmission first signal according to preset trigger condition or other strategies.For example, processing unit 301 can determine the value of the enabled bit according to channel busy ratio (CBR), if the value of CBR is more than preset threshold, it can determine that the reservation subframe can be used in transmitting first signal.The specific implementation for retaining subframe and being used for transmission first signal is determined about processing unit 301, be can refer to preceding method embodiment, is not repeated here.

Communication unit 303 can be used for sending the first instruction information and/or second indication information to terminal.Wherein, can the reservation subframe that the first instruction information is used to indicate in first resource set be used for transmission the first signal, and it is tactful that the second indication information is used to indicate using for the reservation subframe.It is described to may be used to indicate terminal using the first signal described in the reservation sub-frame transmission using strategy.In the specific implementation, the first instruction information and/or the second indication information can carry in SIB message, it can refer to preceding method embodiment, do not repeat here.

In the application, being referred to using strategy for the reservation subframe uses strategy and preceding method embodiment for two kinds described in aforementioned key technology point (two), does not repeat here.

It should be understood that the specific implementation for each functional unit for including about the network equipment 30 can refer to aforementioned key technology point (one) to (three) or the corresponding embodiment of the method for Figure 10, Figure 13 or Figure 14, which is not described herein again.

Secondly, as shown in figure 15, terminal 40 can include: processing unit 401 and communication unit 403.Wherein:

Processing unit 401, the trigger condition that can be used for being pre-configured according to agreement is transmitted to judge that can the reservation subframe be used for V2X, without obtaining the instruction of the network equipment 30.For example, then processing unit 401 can determine that the reservation subframe can be used in transmitting V2X data when channel busy ratio (CBR) is higher than preset threshold.The specific implementation for retaining subframe and being used for transmission first signal is determined about processing unit 301, be can refer to preceding method embodiment, is not repeated here.

Communication unit 403, the reservation subframe that can be used for being indicated according to the network equipment 30 (by SIB message) or pre-configuration use strategy, utilize the first signal described in the reservation sub-frame transmission.

Optionally, communication unit 403, it may also be used for receive the first instruction information and/or second indication information that the network equipment 30 is sent.Wherein, can the reservation subframe that the first instruction information is used to indicate in first resource set be used for transmission the first signal, and it is tactful that the second indication information is used to indicate using for the reservation subframe.It is described to may be used to indicate terminal using the first signal described in the reservation sub-frame transmission using strategy.In the specific implementation, the first instruction information and/or the second indication information can carry in SIB message, it can refer to preceding method embodiment, do not repeat here.

It should be understood that the specific implementation for each functional unit for including about terminal 40 can refer to aforementioned key technology point (one) to (three) or the corresponding embodiment of the method for Figure 10, Figure 13 or Figure 14, which is not described herein again.

In addition, the wireless communication system can be LTE-V system shown in Fig. 2 the embodiment of the invention also provides a kind of wireless communication system, it may include: the network equipment and terminal.Wherein, the network equipment can be the network equipment in the corresponding embodiment of the method for Figure 10, Figure 13 or Figure 14, and the terminal can be the terminal in the corresponding embodiment of the method for Figure 10, Figure 13 or Figure 14.

In the specific implementation, the terminal can be terminal 10 shown in fig. 5.The network equipment can be base station 20 shown in fig. 6.The terminal, the network equipment can also be terminal 40 shown in figure 15 and the network equipment 30 respectively.

Specific implementation about the network equipment and the terminal can refer to aforementioned key technology point (one) to (three) or the corresponding embodiment of the method for Figure 10, Figure 13 or Figure 14, and which is not described herein again.

To sum up, implement the embodiment of the present invention, it is tactful by configuring using for the reservation subframe in V2X resource pool, it improves resource utilization.Moreover, the use for retaining subframe does not influence existing resource reservation mechanism.

Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, the process can be instructed relevant hardware to complete by computer program, the program can be stored in computer-readable storage medium, the program is when being executed, it may include such as the process of above-mentioned each method embodiment.And storage medium above-mentioned includes: the medium of the various program storage codes such as ROM or random access memory RAM, magnetic or disk.

Claims

A kind of resource using method characterized by comprising

The network equipment sends the first instruction information and/or second indication information to terminal；Wherein, can the reservation subframe that the first instruction information is used to indicate in first resource set be used for transmission the first signal, and it is tactful that the second indication information is used to indicate using for the reservation subframe；It is described to be used to indicate terminal using the first signal described in the reservation sub-frame transmission using strategy.
The method as described in claim 1, which is characterized in that further include: the reservation sub-frame configuration in the first resource set is that can be used in transmitting first signal, and the first instruction information is set to the first value by the network equipment；The the first instruction information for being set to first value, which is used to indicate the reservation subframe, can be used in transmitting first signal.
The method as described in claim 1, it is characterized in that, further include: the network equipment judges whether channel congestion degree is more than preset threshold, if it exceeds, it is then that can be used in transmitting first signal, and the first instruction information is set to the first value by the reservation sub-frame configuration in the first resource set；The the first instruction information for being set to first value, which is used to indicate the reservation subframe, can be used in transmitting first signal.
Method as claimed in any one of claims 1-3, it is characterized in that, it is priority policy that the second indication information, which is used to indicate the strategy that uses for retaining subframe, and the terminal for being configured as high priority preferentially utilizes the first signal described in the reservation sub-frame transmission.
Method as claimed in claim 4, which is characterized in that the priority policy includes at least one of the following:

The low terminal of transmission power is configured as preferentially using the reservation subframe；Alternatively,

It is configured as preferentially using the reservation subframe using the terminal of random sources selection mode；Alternatively,

The terminal for not retransmitting first signal is configured as preferentially using the reservation subframe；Alternatively,

During listening to resource selection, the terminal for not choosing appropriate resources is configured as preferentially using the reservation subframe；Alternatively,

When sending first signal of high priority, terminal is configured as preferentially using the reservation subframe；Alternatively,

In resource selection, the terminal without resource reservation is configured as preferentially using the reservation subframe.
Method as claimed in any one of claims 1-3, which is characterized in that the first resource set further includes logic subframe, and the logic subframe is used for transmission first signal；

The second indication information include at the first time be worth, be used to indicate it is described retain subframe using strategy be utilize meet condition reservation subframe and logic sub-frame transmission described in the first signal；The condition that meets is to retain the spacing of subframe and logic subframe on resource location to meet preset condition；The preset condition includes: or to be equal to one of described first time value less than or equal to the first time value.
Such as method of any of claims 1-6, which is characterized in that further include: the network equipment indicates the reservation subframe that can be used in transmitting first signal in the first resource set by bit map.
Such as method of any of claims 1-7, which is characterized in that the network equipment determines distribution mode of the reservation subframe in the first resource set according to the quantity for retaining subframe.
A kind of resource using method characterized by comprising

When the reservation subframe in first resource set can be used in transmitting the first signal, the reservation subframe that terminal is indicated according to the network equipment or pre-configuration uses strategy, utilizes the first signal described in the reservation sub-frame transmission.
Method as claimed in claim 9, which is characterized in that if the strategy that uses for retaining subframe is priority policy；Then the terminal indicated according to the network equipment or pre-configuration the reservation subframe using strategy, utilize the first signal described in the reservation sub-frame transmission, if including: the terminal is the high priority terminal configured in the priority policy, the terminal is preferentially using the first signal described in the reservation sub-frame transmission.
Method as claimed in claim 9, which is characterized in that the first resource set further includes logic subframe, and the logic subframe is used for transmission first signal；If it is described retain subframe using strategy be utilize meet condition reservation subframe and logic sub-frame transmission described in the first signal；Spacing of the reservation subframe and logic subframe for meeting condition on resource location is equal to value at the first time；

Then the terminal indicated according to the network equipment or pre-configuration the reservation subframe using strategy, utilize the first signal described in the reservation sub-frame transmission, comprising: the terminal utilizes the first signal described in the reservation subframe for meeting condition and logic sub-frame transmission.
Method as claimed in claim 9, which is characterized in that the first resource set further includes logic subframe, and the logic subframe is used for transmission first signal；If it is described retain subframe using strategy be utilize meet condition reservation subframe and logic sub-frame transmission described in the first signal；Spacing of the reservation subframe and logic subframe for meeting condition on resource location is less than or equal to value at the first time；

Then the terminal indicated according to the network equipment or pre-configuration the reservation subframe using strategy, utilize the first signal described in the reservation sub-frame transmission, comprising: the terminal utilizes the first signal described in the reservation subframe for meeting condition and logic sub-frame transmission.
Method as described in any one of claim 9-12, which is characterized in that further include: the terminal, which is sent, indicates information about the use for retaining subframe, described to be used to indicate whether terminal uses the reservation subframe using instruction information.
Method as claimed in claim 13, which is characterized in that described to be carried in the control information that the terminal is sent using instruction information.
Method as claimed in claim 14, which is characterized in that described to be used to indicate the resource reservation for adjusting next transmission block using instruction information；Further include: if the first biography of current transmission block uses a reservation subframe, adds 1 to the resource reservation position of next transmission block, and the time interval between the first biography and re-transmission to next transmission block adds 1；If the re-transmission of current transmission block uses a reservation subframe, the resource reservation position of next transmission block is added 1.
Method as described in any one of claim 9-12, it is characterized in that, further include: the terminal re-starts logical resource number with the reservation subframe that can be used in transmitting first signal for the logic subframe in the first resource set, obtains the new logic subframe that can be used in transmitting first signal.
Method as described in any one of claim 9-16, which is characterized in that further include:

When the first instruction information that the terminal is got is the first value, then the terminal determines that the reservation subframe can be used in transmitting first signal；Can the reservation subframe that the first instruction information is used to indicate in the first resource set be used for transmission first signal；Alternatively,

If the reservation subframe is preconfigured to be allowed for transmitting first signal, the terminal determines that the reservation subframe can be used in transmitting first signal.
Method as described in any one of claim 9-16, which is characterized in that further include:

If the terminal is in outside network equipment signal cover, the terminal determines that the reservation subframe can be used in transmitting first signal.
Method as described in any one of claim 9-16, which is characterized in that further include:

If channel congestion degree is greater than preset threshold, the terminal determines that the reservation subframe can be used in transmitting first signal.
A kind of network equipment characterized by comprising transmitter and processor, in which:

The processor is for configuring the first instruction information and/or second indication information；Wherein, can the reservation subframe that the first instruction information is used to indicate in first resource set be used for transmission the first signal, and it is tactful that the second indication information is used to indicate using for the reservation subframe；It is described to be used to indicate terminal using the first signal described in the reservation sub-frame transmission using strategy；

The transmitter is used to send the first instruction information and/or the second indication information to terminal.
The network equipment as claimed in claim 20, which is characterized in that the processor is used to be that can be used in transmitting first signal, and the first instruction information is set to the first value by the reservation sub-frame configuration in the first resource set；The the first instruction information for being set to first value, which is used to indicate the reservation subframe, can be used in transmitting first signal.
The network equipment as claimed in claim 20, it is characterized in that, the processor is for judging whether channel congestion degree is more than preset threshold, if it exceeds, it is then that can be used in transmitting first signal, and the first instruction information is set to the first value by the reservation sub-frame configuration in the first resource set；The the first instruction information for being set to first value, which is used to indicate the reservation subframe, can be used in transmitting first signal.
The network equipment as described in any one of claim 20-22, it is characterized in that, it is priority policy that the second indication information, which is used to indicate the strategy that uses for retaining subframe, and the terminal for being configured as high priority preferentially utilizes the first signal described in the reservation sub-frame transmission.
The network equipment as claimed in claim 23, which is characterized in that the priority policy includes at least one of the following:

The low terminal of transmission power is configured as preferentially using the reservation subframe；Alternatively,

It is configured as preferentially using the reservation subframe using the terminal of random sources selection mode；Alternatively,

The terminal for not retransmitting first signal is configured as preferentially using the reservation subframe；Alternatively,

During listening to resource selection, the terminal for not choosing appropriate resources is configured as preferentially using the reservation subframe；Alternatively,

When sending first signal of high priority, terminal is configured as preferentially using the reservation subframe；Alternatively,

In resource selection, the terminal without resource reservation is configured as preferentially using the reservation subframe.
The network equipment as described in any one of claim 20-22, which is characterized in that the first resource set further includes logic subframe, and the logic subframe is used for transmission first signal；

The second indication information include at the first time be worth, be used to indicate it is described retain subframe using strategy be utilize meet condition reservation subframe and logic sub-frame transmission described in the first signal；The condition that meets is to retain the spacing of subframe and logic subframe on resource location to meet preset condition；The preset condition includes: or to be equal to one of described first time value less than or equal to the first time value.
The network equipment as described in any one of claim 20-25, which is characterized in that the processor is also used to indicate the reservation subframe that can be used in transmitting first signal in the first resource set by bit map.
The network equipment as described in any one of claim 20-26, which is characterized in that the processor is also used to determine distribution mode of the reservation subframe in the first resource set according to the quantity for retaining subframe.
A kind of terminal characterized by comprising receiver, transmitter and processor, in which:

The processor is for determining that can the reservation subframe in first resource set be used for transmission the first signal；

It is tactful that the receiver is used to receive using for the reservation subframe of network equipment instruction；

The transmitter is used for when the reservation subframe in the first resource set can be used in transmitting the first signal, the network equipment instruction received according to the receiver or pre-configuration the reservation subframe uses strategy, utilizes the first signal described in the reservation sub-frame transmission.
Terminal as claimed in claim 28, which is characterized in that the strategy that uses for retaining subframe is priority policy；If it is the high priority terminal configured in the priority policy that the transmitter, which is specifically used for terminal, preferentially using the first signal described in the reservation sub-frame transmission.
Terminal as claimed in claim 28, which is characterized in that the first resource set further includes logic subframe, and the logic subframe is used for transmission first signal；It is described retain subframe using strategy be utilize meet condition reservation subframe and logic sub-frame transmission described in the first signal；Spacing of the reservation subframe and logic subframe for meeting condition on resource location is equal to value at the first time；The transmitter is specifically used for using described in the reservation subframe for meeting condition and logic sub-frame transmission First signal.
Terminal as claimed in claim 28, which is characterized in that the first resource set further includes logic subframe, and the logic subframe is used for transmission first signal；If it is described retain subframe using strategy be utilize meet condition reservation subframe and logic sub-frame transmission described in the first signal；Spacing of the reservation subframe and logic subframe for meeting condition on resource location is less than or equal to value at the first time；The transmitter is specifically used for utilizing the first signal described in the reservation subframe for meeting condition and logic sub-frame transmission.
Terminal as described in any one of claim 28-31, which is characterized in that the transmitter, which is also used to send, indicates information about the use for retaining subframe, described to be used to indicate whether terminal uses the reservation subframe using instruction information.
Terminal as claimed in claim 32, which is characterized in that described to be carried in the control information that the terminal is sent using instruction information.
Terminal as claimed in claim 33, which is characterized in that described to be used to indicate the resource reservation for adjusting next transmission block using instruction information；The processor, if the first biography for being also used to current transmission block adds 1 to the resource reservation position of next transmission block using a reservation subframe, and the time interval between the first biography and re-transmission to next transmission block adds 1；If the re-transmission of current transmission block uses a reservation subframe, the resource reservation position of next transmission block is added 1.
Terminal as described in any one of claim 28-31, it is characterized in that, the processor, it is also used to re-start logical resource number with the reservation subframe that can be used in transmitting first signal for the logic subframe in the first resource set, obtains the new logic subframe that can be used in transmitting first signal.
Terminal as described in any one of claim 28-35, which is characterized in that the processor is specifically used for: when the first instruction information that the terminal is got is the first value, then the terminal determines that the reservation subframe can be used in transmitting first signal；Can the reservation subframe that the first instruction information is used to indicate in the first resource set be used for transmission first signal；Alternatively, if the reservation subframe is preconfigured to be allowed for transmitting first signal, it is determined that the reservation subframe can be used in transmitting first signal.
Terminal as described in any one of claim 28-35, which is characterized in that the processor is specifically used for: if the terminal is in outside network equipment signal cover, it is determined that the reservation subframe can be used in transmitting first signal.
Terminal as described in any one of claim 28-35, which is characterized in that the processor is specifically used for: if channel congestion degree is greater than preset threshold, the terminal determines that the reservation subframe can be used in transmitting first signal.
A kind of communication system characterized by comprising the network equipment and terminal, in which:

Can the reservation subframe that the network equipment is used for into terminal instruction first resource set be used for transmission the first signal, And the use strategy for retaining subframe；

The terminal is used for when the reservation subframe in first resource set can be used in transmitting the first signal, according to base station instruction or pre-configuration the reservation subframe using strategy, utilizes the first signal described in the reservation sub-frame transmission.
Communication system as claimed in claim 39 characterized by comprising the network equipment is the network equipment described in any one of claim 21-27；The terminal is terminal described in any one of claim 29-38