阅读说明：本技术 无线通信系统中终端执行v2x控制信息捎带的方法和使用该方法的终端 (Terminals in wireless communication systems executes the method for V2X control attendant message and the terminal using this method ) 是由 李承旻 徐翰瞥 于 2017-03-17 设计创作，主要内容包括：本发明提供一种通过其终端在无线通信系统中执行车辆到一切(V2X)传输资源选择的方法,该方法包括：在子帧上映射与控制信息有关的编译符号和通过使用映射的编译符号来发送控制信息,其中控制信息与数据一起被捎带并且被发送,并且与控制信息有关的编译符号在数据之前被映射。(The present invention provides one kind and executes the method that vehicle is selected to all (V2X) transfer resources in a wireless communication system by its terminal, this method comprises: being mapped in subframe and controlling information-related compiling symbol and send control information by using the compiling symbol of mapping, wherein control information and date is piggybacked together and is sent, and is mapped before the data with information-related compiling symbol is controlled.)

1. one kind is for the method in a wireless communication system by UE selection vehicle to all (V2X) transfer resources, the method Include:

It is mapped in subframe and controls information-related compiling symbol；And

The control information is sent using the compiling symbol of the mapping,

Wherein, the control information and date is piggybacked together and is sent, and before the data mapping with it is described Control the information-related compiling symbol.

2. according to the method described in claim 1, wherein, with the control the information-related compiling symbol be mapped to The adjacent region of reference signal symbol.

3. according to the method described in claim 1, wherein, mapping between multiple reference signal symbols has with the control information The compiling symbol closed.

4. according to the method described in claim 3, wherein, the information-related compiling symbol is not mapped in the control On symbol before the first reference signal symbol in the subframe and the symbol turned finally to after signal code.

5. according to the method described in claim 1, wherein, in the identical frequency for being continuously mapped in the subframe with it is described The interval controlled between the information-related compiling symbol is maximized.

6. according to the method described in claim 1, wherein, by single carrier frequency division multiplexing multiple access (SC-FDMA) symbol axis and virtual Subframe axis defines the subframe.

7. according to the method described in claim 6, wherein, the subframe includes 14 symbols on the SC-FDMA symbol axis Number and include 12 virtual subframes on the virtual subcarrier axis.

8. according to the method described in claim 7, wherein, the subframe includes multiple reference signal symbols.

9. according to the method described in claim 8, wherein, the reference signal symbol is demodulated reference signal (DMRS) symbol.

10. according to the method described in claim 1, wherein, the control information is modulation and coding scheme (MCS) index.

11. according to the method described in claim 1, wherein, being fixed in the resource for wherein sending the control information.

12. a kind of user equipment (UE), comprising:

Transceiver, the transceiver is for sending and receiving signal；And

Processor, the processor are operated together with the transceiver,

Wherein, described in for the method in wireless communication system by UE selection vehicle to all (V2X) transfer resources Processor is configured to:

It is mapped in subframe and controls information-related compiling symbol；And

The control information is sent using the compiling symbol of the mapping,

Wherein, the control information and date is piggybacked together and is sent, and before the data mapping with it is described Control the information-related compiling symbol.

Technical field

The present invention relates to a kind of wireless communications, and more particularly, in a wireless communication system by terminal execution V2X controls information piggybacking method and the terminal using this method.

Background technique

In International Telecommunication Union's Radiocommunication Sector (ITU-R), international mobile telecommunication (IMT) is being carried out Next generation mobile communication system after the advanced third generation of Advanced standardization--.IMT-Advanced is directed at terminal With the data rate of 100Mbps with the data rate of 1Gbps and when terminal high-speed is mobile when mobile in static or low speed Support the multimedia service of internet protocol-based (IP) under static and low mobility state with the data rate of 1Gbps and The multimedia service based on IP (Internet protocol) is supported with the data rate of 100Mbps under high-speed moving state.

Third generation partner program (3GPP) is to meet the requirement of IMT-Advanced and LTE-Advanced (LTE-A) System standard, LTE-Advanced has been based on orthogonal frequency division multiple access (OFDMA)/single carrier LTE-Advanced (LTE-A) Improve long term evolution (LTE).LTE-A is one of strong candidate of IMT-Advanced.

Recently, the interest of D2D (device-to-device) technology for direct communication between equipment is increasingly increased.Especially Ground, D2D just cause to pay close attention to as the communication technology of public safety network.Business correspondence network changes to LTE rapidly, still Current public safety network is based primarily upon 2G technology, this mutually conflicts with current communication standard and cost.These technological gaps The effort to public safety network is improved is had resulted in the demand to service is improved.

Especially when the coverage area of cellular communication is insufficient or unavailable, public safety network has than business correspondence net The higher service request of network (reliability and safety), and the direct signal of needs between devices sends and receives or D2D Operation.

For example, D2D operation usually can have the advantages that wherein it nearby sends and receives signal between equipment a variety of. For example, D2D UE has high data rate and low latency, and it is able to carry out data communication.In addition, D2D operation can be by business It is distributed to base station, and if the UE for executing D2D operation serves as transponder, it can be with the coverage area of extended base station.

D2D communication can extend and the signal being suitable between vehicle sends and receives, and the related communication quilt of vehicle Referred to as vehicle is communicated to all (V2X).

Term " x " in V2X means pedestrian (vehicle and the individual's (example carried by pedestrian, cyclist, driver or passenger Such as) the communication between the equipment of handheld terminal carrying)) (V2P), vehicle (communication between vehicle) (V2V), infrastructure/net Network (communication between vehicle and roadside unit (RSU)/network, (for example) RSU is the transport matrix realized in eNB or fixed UE Infrastructure entity (for example, entity of transmission speed notice)) (V2I/N).

It is set forth below and incidentally controls (/ scheduling) with transmission on channel (for example, PSSCH) specified in advance as V2X UE It is detailed when information (for example, " MCS index (/ order of modulation) " and/or " TBS index (/ transport block size) ") (and " data ") Thin mapping method.

Summary of the invention

The purpose of the invention is to provide in a wireless communication system by UE execute V2X transfer resource selection method and Use the UE of this method.

In one aspect, it provides a kind of for selecting vehicle to transmit money to all (V2X) by UE in a wireless communication system The method in source.This method may include: to map in subframe and control the information-related compiling for compiling symbol and using mapping Symbol sends control information, wherein control information and date is piggybacked together and is sent, and before the data mapping with Control information-related compiling symbol.

The compiling symbol information-related with control can be mapped to the region adjacent with reference signal symbol.

It can be mapped between multiple reference signal symbols and control information-related compiling symbol.

With control information-related compiling symbol can not be mapped in subframe before the first reference signal symbol Symbol and turn finally on symbol after signal code.

Interval between the compiling symbol information-related with control in the identical frequency for being continuously mapped in subframe can To be maximized.

Multiple access (SC-FDMA) symbol axis and virtual subframe axis can be multiplexed by single carrier frequency division to define subframe.

Subframe includes 14 symbols on SC-FDMA symbol axis and may include 12 on virtual subcarrier axis Virtual subframe.

Subframe may include multiple reference signal symbols.

Reference signal symbol can be demodulated reference signal (DMRS) symbol.

Control information can be modulation and coding scheme (MCS) index.

The resource for wherein sending control information can be fixed.

In another aspect, a kind of user equipment (UE) is provided.UE may include transceiver, the transceiver for send and Receive RF signal；And processor, the processor are operated together with transceiver, wherein in a wireless communication system by UE Select vehicle into the method for all (V2X) transfer resources, which is configured to map in subframe has with control information The compiling symbol of pass；And control information is sent using the compiling symbol of mapping, wherein control information and date is sent together It band and is sent, and maps before the data and control information-related compiling symbol.

According to this document, UE can be adjacent with reference signal by being mapped to the compiling symbol information-related with control It region and control information is sent by compiling symbol steadily sends control information.Particularly, this document can pass through increasing Add reference signal density to improve " phase offset " correction and channel estimating performance.Therefore, according to the present invention it is possible to high reliability Ground sends " the V2X message with variable-size ".

Detailed description of the invention

Fig. 1 shows the wireless communication system that the literature is applied to it.

Fig. 2 shows the radio frame structures of 3GPP LTE.

Fig. 3 illustrates uplink subframe structure.

Fig. 4 diagram is wherein multiplexed the process of uplink control information and uplink data on PUSCH.

Fig. 5 diagram is used for the reference configuration of ProSe.

Fig. 6 diagram executes the arrangement example of the terminal of ProSe direct communication and cell coverage area.

Fig. 7 diagram is used for the user-plane protocol stack of ProSe direct communication.

PC 5 interface of Fig. 8 diagram for D2D discovery.

The case where Fig. 9 to Figure 13 diagram is wherein increased for the density (/ number) of the reference signal of channel estimation is shown Example.

Figure 14 is the method for mapping in subframe with controlling information-related compiling symbol of embodiment according to the present invention Flow chart.

Figure 15 to Figure 23 is shown in basis (regular #1-1), (regular #1-2) and (regular # in the case where Fig. 9 and/or Figure 11 The mapping of control (/ scheduling) information-related " compiling symbol " 1-3).

Figure 24 be shown in the case where Fig. 9 and/or Figure 11 and controlled according to the mapping of (regular #1-1) and (regular #1-2) (/ Scheduling) information-related " compiling symbol " example.

Figure 25 to Figure 34 is shown in the control in the case where Fig. 9 and/or Figure 11 according to (regular #1-1) and (regular #1-3) The mapping of (/ scheduling) information-related " compiling symbol ".

Figure 35 is shown in that the control (/ scheduling) in the case where Fig. 9 and/or Figure 11 according to (regular #1-1) is information-related " to compile Translate symbol " mapping.

Figure 36 to Figure 39 diagram is in case of fig. 10 according to the control of (regular #1-1), (regular #1-2) and (regular #1-3) The mapping of system (/ scheduling) information-related " compiling symbol ".

Figure 40 diagram is information-related according to the control (/ scheduling) of (regular #1-1) and (regular #1-2) in case of fig. 10 The mapping of " compiling symbol ".

Figure 41 to Figure 49 diagram is in case of fig. 10 according to the control (/ scheduling) letter of (regular #1-1) and (regular #1-3) Cease the mapping in relation to " compiling symbol ".

Figure 50 diagram is in case of fig. 10 according to the control (/ scheduling) information-related " compiling symbol " of (regular #1-1) Mapping.

The example of Figure 51 to Figure 54 diagram control (/ scheduling) information-related " compiling symbol ".

The example of Figure 55 to Figure 58 diagram mapping control (/ scheduling) information-related " compiling symbol ".

Figure 59 to Figure 73 diagram is controlled according to (regular #1-1) and (regular #1-3) (/ (regular #1-2)) in case of fig.12 The mapping of system (/ scheduling) information-related " compiling symbol ".

Figure 74 to Figure 82 diagram is controlled according to (regular #1-1) and (regular #1-3) (/ (regular #1-2)) in the case of fig. 13 The mapping of system (/ scheduling) information-related " compiling symbol ".

Figure 83, which is illustrated, is wherein based on control (/ scheduling) information MAP with opposite low priority " outside to execution thereon The symbol of the channel estimation of pushing manipulation (extrapolation) " and there will be control (/ scheduling) information MAP of opposite high priority at it The example of the upper symbol for executing the channel estimation based on " interpolation ".

Figure 84 is the block diagram that diagram realizes the UE of the embodiment of the literature for it.

Specific embodiment

Fig. 1 shows the wireless communication system that the literature is applied to it.Wireless communication system can also be known as the land evolution UMTS Ground radio access network (E-UTRAN) or long term evolution (LTE)/lte-a system.

E-UTRAN includes at least one base station (BS) 20, provides control plane to user equipment (UE) 10 and user is flat Face.What UE 10 can be fixed or move, and another term can be referred to as, such as movement station (MS), user are whole Hold (UT), subscriber station (SS), mobile terminal (MT), wireless device etc..BS 20 be usually with the fixed station communicated of UE 10 and Another term, evolution node B (eNB), base transceiver system (BTS), access point etc. can be referred to as.

BS 20 is interconnected by X2 interface.BS 20 is also connected to evolution block core (EPC) 30 by S1 interface, more Specifically, it is connected to mobility management entity (MME) by S1-MME, and gateway (S-GW) is connected to by S1-U.

EPC 30 includes MME, S-GW and grouped data network gateway (P-GW).Access information or UE of the MME with UE Ability information, and this information is commonly used in the mobile management of UE.S-GW is the gateway for having E-UTRAN as endpoint. P-GW is the gateway for having PDN as endpoint.

Based on lower three layers of open system interconnection (OSI) model well-known in communication system, between UE and network The layer of radio interface protocol can be classified as first layer (L1), the second layer (L2) and third layer (L3).Wherein, belong to One layer of physics (PHY) layer provides information transmission service by using physical channel, and belongs to the radio resource of third layer Control (RRC) layer is used to control the radio resource between UE and network.Disappear for this purpose, rrc layer exchanges RRC between UE and BS Breath.

Fig. 2 shows the radio frame structures of 3GPP LTE.

Referring to Fig. 2, radio frame includes 10 subframes, and a subframe includes 2 time slots.Subframe can have 1ms Length, and time slot can have the length of 0.5ms.It sends a subframe the time it takes and is known as transmission time interval (TTI).TTI can be minimum scheduling unit.

One time slot may include multiple orthogonal frequency division multiplexing (OFDM) symbol in time domain.OFDM symbol is for indicating one A symbol period, because 3GPP LTE can be named using OFDMA and by other titles on the uplink.For example, OFDM symbol can be referred to as SC-FDMA symbol.Although time slot includes 7 OFDM symbols in the disclosure, one The number for the OFDM symbol for including in time slot can change according to cyclic prefix (CP) length.According to 3GPP, 1 subframe is in CP In include 7 OFDM symbols, and extension CP in include 6 OFDM symbols.The structure of radio frame is exemplary, and The number for the time slot for including in the number and subframe of the subframe for including in radio frame can change in various ways.

Fig. 3 illustrates uplink subframe structure.

Referring to Fig. 3, uplink subframe can be divided into it and distribute carrying uplink control information physically The control area of Uplink Control Channel (PUCCH) and the physical uplink shared channel that carrying user data is distributed to it (PUSCH) data area.

PUCCH for a UE is assigned to that the resource block (RB) in subframe is right, and the RB for belonging to RB couples occupies 2 Different subframes in time slot.This referred to as distributes to RB pairs of the frequency hopping of PUCCH on the slot boundary.

PUCCH can support multiple format.That is, PUCCH, which can carry every subframe according to modulation scheme, to be had not With the uplink control information of the number of bit.For example, when using binary phase shift keying (BPSK) (PUCCH format 1a) 1 bit uplink control information can be sent on PUCCH, and is worked as and used quadrature phase shift keying (QPSK) (PUCCH format When 1b), 2 bit uplinks control information can be sent on PUCCH.PUCCH format further includes format 1, format 2, format 2a and format 2b.

Fig. 4 diagram is wherein multiplexed the process of uplink control information and uplink data on PUSCH.

With reference to Fig. 4, data bit a₀,a₁,...,a_A-1Every TTI is provided in the form of transmission block.Firstly, by cyclic redundancy check (CRC) parity check bit p₀,p₁,...,p_L-1It is added to data bit a₀,a₁,...,a_A-1, to generate CRC addition position b₀,b₁,..., b_B-1(S200).Here, B=A+L.a_kAnd b_kBetween relationship can be expressed as follows.

[formula 1]

b_k=a_k, for k=0,1 ..., A-1

b_k=p_k-A, for k=A, A+1 ..., A+L-1

The bit b that CRC is added₀,b₁,...,b_B-1It is segmented into code block (code block), and as unit of code block again Secondary addition CRC Parity Check Bits (S210).Bit sequence output after code block segmentation is referred to as c_r0,c_r1,..., c_r(Kr-1).Here, when the total number of code block is C, r refers to code block number, and Kr refers to the bit of code block number r Number.

Channel compiling (S220) is executed to the bit sequence of given code block.Coded-bit is represented as d⁽ⁱ⁾ ₀,d⁽ⁱ⁾ ₁,...,d⁽ⁱ⁾ _D-1, D is the number of the coded-bit of every output stream, and i is the index of encoder output bit stream.

Rate-matched (S230) is executed to coded-bit and executes code block cascade (S240) on it to generate data ratio Special sequence f₀,f₁,...,f_G-1.Here, G is indicated when the multiplexing control information on PUSCH in addition to for controlling information transmission The total number of the coded-bit being used for transmission except bit.

Meanwhile control information (uplink control information) can be re-used together with data (uplink data).Number According to control information can by distribute different number of compiling symbol come using different compiler rates to be transmitted.Control Information includes channel quality indicator (CQI)), order designator (RI), acknowledgement/non-acknowledgement (ACK/NACK) etc..

To CQI o₀,o₁,...,o_O-1(number that O is the bit of CQI) executes channel compiling, to generate control information bit Sequence q₀,q₁,...,q_QCQI-1(S250).To RI o₀ ^RIOr RI o₀ ^RI, o₁ ^RIChannel compiling is executed to generate control information bit Sequence q₀ ^RI,q₁ ^RI,...,q_QRI ^RI _-1(S260).Similarly, to ACK/NACK o₀ ^ACKOr ACK/NACK o₀ ^ACK、o₁ ^ACKOr o₀ ^ACK、o₁ ^ACK,…,o_oACK-1 ^ACKChannel compiling is executed, controls information bit sequence q to generate₀ ^ACK,q₁ ^ACK,...,q_QACK-1 ^ACK (S270)。

The sequence of data bits f of generation₀,f₁,...,f_G-1With the control information bit sequence q of CQI₀,q₁,...,q_QCQI-1 It is multiplexed into multiplexed sequence g₀,g₁,...,g_H-1(S280).When executing multiplexing, the control information bit sequence of CQI can be arranged q₀,q₁,...,q_QCQI-1, and then can be with layout data bit sequence f₀,f₁,...,f_G-1.That is, as H=G+Q, [g₀, g₁,...,g_H-1]=[q₀,q₁,...,q_QCQI-1,f₀,f₁,...,f_G-1]。

By channel interleaver by multiplexed sequence g₀,g₁,...,g_H-1It is mapped to modulation sequence h₀,h₁,...,h_H'-1 (S280).In addition, the control information bit sequence of RI or ACK/NACK is mapped to modulation sequence h by channel interleaver₀, h₁,...,h_H'-1.Here, h_iIt is the modulation symbol on planisphere, and H'=H+Q_RI.Modulation sequence h₀,h₁,...,h_H'-1It is every A modulation symbol is mapped to the resource element for PUSCH.Resource element is the allocation unit in subframe, is defined as 1 A SC-FDMA symbol (or OFDMA symbol) and 1 subcarrier.

Fig. 5 diagram is used for the reference configuration of ProSe.

With reference to Fig. 5, the reference configuration for ProSe includes multiple ends with E-UTRAN, EPC and ProSe application program End, ProSe apply (APP) server and ProSe function.

EPC is the representative example of E-UTRAN.EPC may include MME, S-GW, P-GW, "Policy and Charging Rules Function (PCRF) and home subscriber servers (HSS).

ProSe application server is the user of ProSe to carry out application function.ProSe application server can be with end Interapplication communications in end.ProSe ability can be used to realize application function in application program in terminal.

ProSe function may include at least one of following functions, but not limited to this.

Intercommunication is carried out via reference point and third party application

For finding and the authorization and configuration of the UE of direct communication

Enable the function of EPC rank ProSe discovery

The processing of the processing and ProSe identity of the related new subscriber data of-ProSe and data storage

With security-related function

It is provided towards EPC and is directed to control of the policy in relation to function

There is provided the function (via EPC or except EPC, for example, off-line charge) for charge)

Hereinafter, reference point and reference interface will be described in the reference configuration of ProSe.

- PC1: the ginseng between ProSe application program in the ProSe application program in terminal and ProSe application server Examination point.PC1 is used for the signaling request of definition application rank.

- PC2: being the reference point between ProSe application server and ProSe function.PC2 is for defining ProSe application clothes The interaction being engaged between device and ProSe function.The ProSe database of ProSe function can be interactive show using data update Example.

- PC3: being the reference point between terminal and ProSe function.PC3 is used to define the friendship between terminal and ProSe function Mutually.The configuration for finding and communicating for ProSe can be interactive example.

- PC4: being the reference point between EPC and ProSe function.PC4 is used to define the friendship between EPC and ProSe function Mutually.When alternation of bed diagram authorizes for the path of 1:1 communication or takes for the ProSe of real-time session management or mobile management Business.

- PC5: being the ginseng that discovery, communication and relaying and 1:1 communication between terminal are carried out using control/user plane Examination point.

- PC6: being the reference point of the function between the user for including using such as ProSe discovery in different PLMN.

- SGi: it can be used for application data and application program rank control information exchange.

<ProSe direct communication (D2D communication)>

ProSe direct communication is the communication that two of them public safety terminal can execute direct communication by 5 interface of PC Mode.Receive E-UTRAN coverage area in service the case where or separation E-UTRAN coverage area in the case where all It can support communication pattern.

Fig. 6 diagram executes the arrangement example of the terminal of ProSe direct communication and cell coverage area.

It can be located at except cell coverage area with reference to 6 (a), UE A and UE B.With reference to Fig. 6 (b), UE A can be located at small In area's coverage area, and UE B can be located at except cell coverage area.With reference to Fig. 6 (c), UE A and UE B be each may lie in In cell coverage area.With reference to Fig. 6 (d), UE A can be located in the coverage area of first community, and UE B can be located at the In the coverage area of two cells.

As set forth above, it is possible to locate to execute ProSe direct communication between the terminal provided at various locations.

Meanwhile following ID can be used in ProSe direct communication.

The sender of grouping in active layer -2ID: active layer -2ID mark 5 interface of PC.

The target of grouping in target zone -2ID: target zone -2ID mark PC5 interface.

SA L1 ID:SA L1 ID indicates the ID in the scheduling assignment (SA) in 5 interface of PC.

Fig. 7 diagram is used for the user-plane protocol stack of ProSe direct communication.

With reference to Fig. 6,5 interface of PC includes PDCH layers, rlc layer, MAC layer and PHY layer.

May there is no HARQ feedback in ProSe direct communication.MAC header may include active layer -2ID and target zone - 2ID。

<radio resources allocation for ProSe direct communication>.

For the resource allocation of ProSe direct communication, following two mode is can be used in ProSe enabled terminals.

1. mode 1

Mode 2 is the mode for receiving the scheduling of the resource for ProSe direct communication from base station.Terminal should basis Mode 1 is in RRC_CONNECTED state to send data.Terminal is to base station requests transfer resource, and base station scheduling is used In the resource that scheduling assignment and data transmit.Terminal can send scheduling request to base station, and can send buffer status reporting It accuses (ProSe BSR).There is terminal will execute the data of ProSe direct communication for base station, and determine the need for for sending number According to resource.

2. mode 2

Mode 2 is the mode for selecting direct resource.Terminal is selected directly from resource pool for ProSe direct communication Resource.Resource pool by network configuration or can predefine.

Meanwhile when terminal includes serving cell, that is, when terminal and base station are in RRC_CONNECTED state or position When in the specific cell in RRC_IDLE state, terminal is considered in the coverage area of base station.

If terminal is positioned over except range, it is only applicable in mode 2.It, can be with if terminal is positioned in range Mode 1 or mode 2 are set using according to base station.

If without exceptional condition, only when configuring base station, terminal mode slave pattern 1 can be changed into mode 2 or Person's slave pattern 2 changes into mode 1.

<ProSe directly has found (D2D discovery)>

ProSe directly has found to indicate for finding when ProSe enabled terminals find other adjacent to ProSe enabled terminals Process and refer to the direction D2D discovery or D2D discovery.In which case it is possible to use passing through the E-UTRA of 4 interface of PC Wireless signal.Hereinafter, refer to discovery information for the ProSe information directly found.

PC 5 interface of Fig. 8 diagram for D2D discovery.

With reference to Fig. 8,5 interface of PC includes the MAC layer as upper layer, PHY layer and ProSe protocol layer.It is assisted in upper layer ProSe The informing and monitoring license for finding information are handled in view.It was found that the content of information is transparent for access layer (AS). ProSe agreement, which only allows effective discovery information being transmitted to AS, to be noticed.

MAC layer receives discovery information from upper layer ProSe agreement.IP layers are not used to send discovery information.MAC layer determines institute The resource used, to inform from the received discovery information in upper layer.MAC layer make protocol Data Unit (MAC PDU) and by its It is sent to physical layer.MAC header is not added.

In the presence of for informing the two kinds of resource assignation of discovery information.

1. Class1

Class1 is assigned method, so that finding that the resource of information is not that terminal is specific for informing, and base station The resource pool for informing the discovery information to terminal is provided to configure.The configuration may include in system information block (SIB) with It is sent in broadcasting scheme with signal.Alternatively, which can be included in the specific RRC information of terminal to be offered. Alternatively, which can be the broadcast singal or terminal signal specific of the layer different from RRC information.

Terminal selects resource from the resource pool of instruction, informs discovery information to use selected resource.Terminal can To inform discovery information by the resource optionally selected during each discovery period.

2. type 2

Type 2 is wherein for informing that the resource of discovery information is the method for terminal-specific assignment.In RRC_ The terminal of CONNECTED state can be used to inform to base station by RRC request signal the resource of discovery signal.Base station can refer to It is used in the resource for informing the discovery signal as RRC signal.It can assign in the terminal in the resource pool for monitoring configuration Discovery signal resource.

About the terminal for being in RRC_IDLE state, base station will can be used to inform the Class1 resource pool report of discovery signal Accusing is SIB.1 resource pool of terminal usage type that directly finds of ProSe is wherein allowed to inform the hair in RRC_IDLE state Existing information.Alternatively, base station 2) it is directly found by SIB reporting base stations support ProSe, but can not provide for informing It was found that the resource of information.In this case, terminal should enter RRC_CONNECTED state to inform discovery information.

About be in RRC_CONNECTED state terminal, base station can configure whether 1 resource pool of usage type or class 2 resource pool of type, to inform discovery information by RRC signal.

Hereinafter, the literature will be described.

In general, D2D operation have the advantages that it is various because it is that signal between adjacent equipment sends and receives that D2D, which is operated,.Example Such as, D2D UE can execute data communication with high transfer rate and low latency.In addition, D2D operation can be distributed and concentrate on base station On business, and if execute D2D operation UE be used as repeater, UE can be with the coverage area of extended base station.Due to preceding The communication that the extension and the signal including between vehicle related with vehicle for stating D2D communication send and receive is referred to as V2X (vehicle It is communicated to X).

Here, (" X " of the vehicle into X) refers to pedestrian (between vehicle and the equipment carried by individual for example, V2X Communication (for example, the handheld terminal carried by pedestrian, cyclist, driver or passenger) (V2P), vehicle (communication between vehicle) (V2V), infrastructure/network (communication between vehicle and roadside unit (RSU)/network, (for example, RSU is in eNB or fixation The transport infrastructure entity (for example, entity of transmission speed notice) realized in UE) (V2I/N) etc..In addition, for the ease of Itd is proposed method is described, for example, (V2P communication the is related) equipment carried by pedestrian (or personal) is referred to as " P-UE ", and (V2X communication the is related) equipment realized in the car is referred to as " V-UE ".In addition, for example, term " entity " can in the literature To be interpreted P-UE, V-UE and/or RSU (/ network/infrastructure).

The UE for providing (or support) above-mentioned D2D operation can be referred to as D2D UE, and provide (or support) above-mentioned V2X behaviour The UE of work can be referred to as V2X UE.Although for the ease of description, the embodiment of the literature will be described from the angle of V2X UE, but It is that the description of V2X UE can be applied to D2D UE.

According to this document, " periodic resources (there is the fixed size) " hair of (/ selection) is advanced for when V2X UE passes through When sending " the V2X message with variable-size ", for example, V2X UE can be defined as following (in certain) rule described below Then.Here, when the following rule (in some) of application, for example, can send " the V2X with variable-size with high reliability Message ".Here, V2X message may include control information and/or data.

(example #A) only specifies " resource location (/ size) " information in periodic resources distribution, and can make V2X UE considers/determines " link-quality " and/or " (transmission) V2X message size " of each transmission timing and then previous On specified channel (for example, physical side link channel (PSSCH)) incidentally and send " modulation and coding scheme (MCS) index (/ Order of modulation) " information and " data ".Here, different channel compilings are compiled from the channel for " data " can be applied to With " data " together incidentally with the control information of transmission (for example, " MCS index on previously specified channel (for example, PSSCH) (/ order of modulation) " and/or " TBS index (/ transport block size) ").Here, because receiving V2X UE it needs to be determined that sending out by it The resource for sending control information, for example, it is desirable to which the position (/ size) of resource is fixed.

(example #B) only specifies " resource location (/ size) " information and " MCS index (/ modulation in periodic resources distribution Order) " information, and V2X UE can be made to consider/determine each " link-quality " and/or (transmission) for transmitting timing " V2X message size " and incidentally and " TBS index (/ transmission block then is sent on previously specified channel (for example, PSSCH) Size) " information and " data ".Here, for example, can choose the letter for being best suited for and (being sent) practical V2X message size Breath (for example, being equal to or more than the minimum value or closest value among the value of V2X message size) is used as " TBS index (/ transmission block Size) " information.

It is set forth below as V2X UE on previously specified channel (for example, PSSCH) incidentally and sends control (/ scheduling) and believe It is detailed when breath (for example, " MCS index (/ order of modulation) " and/or " TBS index (/ transport block size) ") (and " data ") Mapping method.

Before proposed method is described in detail, when in opposite " high frequency band (for example, 6GHz) " and in " high speed When executing V2X communication under (for example, (maximum) 140Km/H) ", for example, channel estimating performance (based on it is predefined (/ sent with signal ) reference signal (RS) (for example, " DM-RS ") may be due to " (caused by " frequency shift (FS) " and " Doppler effect ") phase Drift " and " inter-carrier interference " (ICI) and reduce (/ deterioration).Here, in order to solve this problem, it is used for for example, can increase The density (/ number) of the reference signal (for example, " DM-RS ") of channel estimation.Thus, for example, " phase offset " school can be improved Just and channel estimating performance.

Fig. 9 to Figure 13 diagram wherein increases the example of the case where density (/ number) for the reference signal of channel estimation. More specifically, the diagram of Fig. 9 to 13 wherein increases the density (/ number) of the reference signal (for example, " DM-RS ") for channel estimation The case where (for example, 4 symbols for reference signal (DM-RS) transmit).Here, suppose that the case where being provided with " normal CP ".

Here, Fig. 9 illustrates the case where wherein there are 4 symbol DM-RS at " symbol #2, #5, #8 and #11 ".Figure 10 figure Show the case where wherein there are 4 symbol DM-RS at " symbol #2, #4, #9 and #11 ".Figure 11 is shown in " symbol #2, #5, #8 And the combed RS at the place #11 ".Figure 12 illustrates FDM (structure of similar OFDM) of the RS at each symbol with data.Figure 13 is shown in RS at " symbol #1, #2, #3, #4, #5, #6, #7, #8, #9, #10, #11 with #12 " and the FDM (knot of similar OFDM of data Structure).

Hereinafter, for ease of description (or propose method) assume Fig. 9 to Figure 13 " reference signal structure (/ it is close Degree/number) ".However, the method proposed of this document can be extended and be applied to other " reference signal structure (/ density/ Number) ".

Figure 14 is the method for mapping in subframe with controlling information-related compiling symbol of embodiment according to the present invention Flow chart.

4, UE maps in subframe and controls information-related compiling symbol (S1410) referring to Fig.1.Here, UE can be V2X UE.Mapping is described below and controls the detailed example of information-related compiling symbol.

[suggesting method] can be information-related to map control (/ scheduling) according to following regular (/ principle) (in some) " compiling symbol ".Here, for example, (control (/ scheduling) is information-related) " compiling symbol " may be configured to before " data " It is mapped (in the form of wherein " data " quilt " rate-matched ") or is reflected by preferential (/ first) " punching " mapping " data " It penetrates.In addition, for example, " maximum number of control (/ scheduling) information-related " compiling symbol " " can be restricted to " be mapped with to it Close the number of the symbol of the control (/ scheduling) information of ' compiling symbol ' " × " send together with ' data ' on it control (/ adjust Degree) information channel (for example, " PSSCH ") scheduling bandwidth (number of subcarrier) ".

(regular #1-1) in order to improve " channel estimation (/ decoding) performance ", (control (/ scheduling) is information-related) " compiling is accorded with Number " be mapped to close to (closest) in " region of DM-RS symbol ".

(regular #1-2) is based on the channel estimation of " extrapolation (/ extrapolation) " in order to reduce, (control (/ scheduling) is information-related) " compiling symbol " (only) is mapped between " DM-RS " symbol.For example, (control (/ scheduling) information has when this rule of application Close) " compiling symbol " be not mapped to " first " DM-RS " symbol before symbol " and " symbol after last " DM-RS " symbol Number " on.

(regular #1-3) in order to obtain (maximum) " time diversity " gain, (control (/ scheduling) is information-related) " compiling is accorded with Number " interval that (continuously) is mapped on identical frequency (/ subcarrier) is maximized.

Figure 15 to Figure 23 is shown in basis (regular #1-1), (regular #1-2) and (regular #1- in the case where Fig. 9 and/Figure 11 3) mapping of control (/ scheduling) information-related " compiling symbol ".

More specifically, Figure 15 to Figure 23 is shown in basis (regular #1-1), (regular # in the case where Fig. 9 and/or Figure 11 1-2) and (regular #1-3) maps the example for controlling (/ scheduling) information-related " compiling symbol ".Here, for example, it is assumed that control (/ Scheduling) number of information-related (will incidentally) " compiling symbol " is " 21 ".Here, for example, to its mapping (/ control (/ scheduling) It is information-related) (/ resource size (/ size) can be interpreted " symbol #3/4/6/7/9/10 for the character position of " compiling symbol ". As another example, thus it is possible to vary the control (/ scheduling) for being mapped to " symbol #6 " and " symbol #7 " is information-related " compiling symbol ", So that they are mapped to " symbol #7 " and " symbol #6 " in Figure 15,16 and 17.As a specific example, it is mapped to " symbol #6 " " compiling symbol #5/11/7 " and be mapped to " the compiling symbol #2/8/14/20 " of " symbol #7 " and can be varied so that and scheme The former is mapped to " symbol #7 " in the case where 15, and the latter is mapped to " symbol #6 ".

Figure 24 be shown in the case where Fig. 9 and/or Figure 11 and controlled according to the mapping of (regular #1-1) and (regular #1-2) (/ Scheduling) information-related " compiling symbol " example.Here, for example, it is assumed that control (/ scheduling) information-related (will incidentally) " is compiled Translate symbol " number be " 21 ".Here, for example, it is information-related to its mapping (/ control (/ scheduling)) symbol of " compiling symbol " (/ resource size (/ size) can be interpreted " symbol #3/4/6/7/9/10 " for position.Here, distribution control (/ scheduling) information Related " compiling symbol ", " symbol (/ time) index " is from the minimum value of " symbol (/ time) index " (for example, " symbol # simultaneously 3 ") with the maximum value of " subcarrier (/ frequency) index " increase, and when " symbol (/ time) index " reach maximum value (for example, " symbol #10 ") when, for example, " subcarrier (/ frequency) index " be reduced 1 and then " symbol (/ time) index " again from The minimum value of " symbol (/ time) index " increase (only consider to its mapping " compiling symbol " symbol (/ resource location (/ it is big It is small)).

Figure 25 to Figure 34 is shown in the control in the case where Fig. 9 and/or Figure 11 according to (regular #1-1) and (regular #1-3) The mapping of (/ scheduling) information-related " compiling symbol ".

More specifically, Figure 25 to Figure 34 is shown in basis (regular #1-1) and (regular # in the case where Fig. 9 and/or Figure 11 The example of mapping control (/ scheduling) information-related " compiling symbol " 1-3).Here, for example, it is assumed that control (/ scheduling) information has The number for closing (will incidentally) " compiling symbol " is " 21 ".Here, to its mapping ((control (/ scheduling) is information-related) " compiling symbol Number " character position (/ resource size (/ size)) can be interpreted " symbol #1/3/4/6/7/9 ".For example, showing as another Example, thus it is possible to vary the control (/ scheduling) for being mapped to " symbol #9 " and " symbol #10 " is information-related " compiling symbol ", so that they " the symbol #10 " and " symbol #9 " being mapped in Figure 25, Figure 26 and Figure 27.As a specific example, it is mapped to " symbol # 9 " " compiling symbol #6/14 " and " the compiling symbol #4/12/20 " for being mapped to " symbol #10 " can be varied so that and scheme The former is mapped to " symbol #10 " in the case where 25, and the latter is mapped to " symbol #9 ".

Figure 35 is shown in that the control (/ scheduling) in the case where Fig. 9 and/or Figure 11 according to (regular #1-1) is information-related " to compile Translate symbol " mapping.

More specifically, Figure 35 be shown in the case where Fig. 9 and/or Figure 11 according to the mapping of (regular #1-1) control (/ adjust Degree) information-related " compiling symbol " example.Here, for example, it is assumed that information-related (will the incidentally) " compiling of control (/ scheduling) The number of symbol " is " 21 ".Here, for example, to its mapping (sign bit of (control (/ scheduling) is information-related) " compiling symbol " " symbol #1/3/4/6/7/9 " can be interpreted by setting (/ resource size (/ size)).Herein, for example, distribution control (/ tune Degree) information-related " compiling symbol ", simultaneously " symbol (/ time) index " from the minimum value of " symbol (/ time) index " (for example, " symbol #1 ") and the maximum value of " subcarrier (/ frequency) index " increase, and reach maximum value when " symbol (/ time) index " When (for example, " symbol #12 "), " subcarrier (/ frequency) index " is reduced 1, and then " symbol (/ time) index " again from The minimum value of " symbol (/ time) index " increase (only consider to its mapping " compiling symbol " symbol (/ resource location (/ it is big It is small)).

The diagram of Figure 36 to 39 is in case of fig. 10 according to the control of (regular #1-1), (regular #1-2) and (regular #1-3) The mapping of (/ scheduling) information-related " compiling symbol ".

More specifically, the diagram of Figure 36 to 39 is in case of fig. 10 according to (regular #1-1), (regular #1-2) and (regular # The example of mapping control (/ scheduling) information-related " compiling symbol " 1-3).Here, for example, it is assumed that control (/ scheduling) information has The number for closing (will incidentally) " compiling symbol " is " 21 ".Here, for example, " being compiled to its mapping (control/(scheduling) is information-related) Translate symbol " character position (/ resource size (/ size)) can be interpreted " symbol #3/5/8/10 ".

Figure 40 diagram is information-related according to the control (/ scheduling) of (regular #1-1) and (regular #1-2) in case of fig. 10 The mapping of " compiling symbol ".

More specifically, Figure 40 diagram controlled in case of fig. 10 according to the mapping of (regular #1-1) and (regular #1-2) (/ Scheduling) information-related " compiling symbol " example.Here, for example, it is assumed that control (/ scheduling) information-related (will incidentally) " is compiled Translate symbol " number be " 21 ".Here, for example, the symbol of (control/(scheduling) is information-related) " the compiling symbol " that is mapped to it Position (/ resource size (/ size)) can be interpreted " symbol #3/5/8/10 ".Here, distribution control (/ scheduling) information has " compiling symbol " is closed, simultaneously the minimum value (for example, " symbol #3 ") of " symbol (/ time) index " from " symbol (/ time) index " The maximum value of " subcarrier (/ frequency) index " increases, and for example, when " symbol (/ time) index " reaches maximum value (example Such as, " symbol #10 ") when, " subcarrier (/ frequency) index " be reduced one and then " symbol (/ time) index " again from " symbol The minimum value of number (/ time) index ", which increases, (only considers the symbol (/ resource location (/ size)) to its mapping " compiling symbol ".

The diagram of Figure 41 to 49 is in case of fig. 10 according to the control (/ scheduling) information of (regular #1-1) and (regular #1-3) Mapping in relation to " compiling symbol ".

More specifically, Figure 41 to Figure 49 illustrates reflecting according to (regular #1-1) and (regular #1-3) in case of fig. 10 Penetrate the example of control (/ scheduling) information-related " compiling symbol ".Here, for example, it is assumed that control (/ scheduling) is information-related (to send Band) number of " compiling symbol " is " 21 ".Here, for example, to its mapping ((control (/ scheduling) is information-related) " compiling symbol Number " character position (/ resource size (/ size)) can be interpreted " symbol #1/3/5/8/10/12.As another example, Can change be mapped to " symbol #5 " and " symbol #8 " control (/ scheduling) it is information-related " compiling symbol " so that they are reflected " the symbol #8 " and " symbol #5 " being mapped in Figure 41 and Figure 42.As a specific example, it is mapped to " the compiling symbol # of " symbol #5 " Before 3/9/15 " can be varied so that in the case where Figure 41 with " the compiling symbol #2/8/14/20 " for being mapped to " symbol #8 " Person is mapped to " symbol #8 ", and the latter is mapped to " symbol #5 ".

Figure 50 diagram is in case of fig. 10 according to the control (/ scheduling) information-related " compiling symbol " of (regular #1-1) Mapping.

More specifically, Figure 50 diagram has according to the mapping of (regular #1-1) control (/ scheduling) information in case of fig. 10 Close the example of " compiling symbol ".Here, for example, it is assumed that the number of control (/ scheduling) information-related (will incidentally) " compiling symbol " Mesh is " 21 ".Here, for example, ((/ resource is big for the character position of (control (/ scheduling) is information-related) " compiling symbol " to its mapping Small (/ size)) it can be interpreted " symbol #1/3/5/8/10/12 ".Here, for example, distribution control (/ scheduling) is information-related " compiling symbol ", simultaneously " symbol (/ time) index " from the minimum value (for example, " symbol #1 ") of " symbol (/ time) index " and The maximum value of " subcarrier (/ frequency) index " increases, and " symbol (/ time) index " reaches maximum value (for example, " symbol # 12 ") when, " subcarrier (/ frequency) index " be reduced 1 and then " symbol (/ time) index " again from " symbol (/ time) Index " minimum value increase (only consider to its map compiling symbol " symbol (/ resource location (/ size)).

The example of Figure 51 to Figure 54 diagram control (/ scheduling) information-related " compiling symbol ".

More specifically, Figure 51 and/or Figure 52 and Figure 53 and/or Figure 54 corresponds to the case where Fig. 9 and/or Figure 11 and Figure 10. Here, for example, it is assumed that the number of control (/ scheduling) information-related (will incidentally) " compiling symbol " is " 21 ".Here, for example, To its mapping, (character position (/ resource size (/ size)) of (control (/ scheduling) is information-related) " compiling symbol " can be solved It is interpreted as " symbol #0/1/3/4/6/7/9/10/12/13 ", " symbol #1/3/4/6/7/9/10/12 ", " symbol #0/1/3/5/6/7/ 8/10/12/13 " and " symbol #1/3/5/6/7/8/10/12 ".Here, for example, distribution control (/ scheduling) information-related " compiling Symbol ", simultaneously " symbol (/ time) index " from the minimum value (for example, " symbol #1 " (Figure 52)) of " symbol/(time) index " and The minimum value of " subcarrier (/ frequency) index " increases, and when " symbol (/ time) index " reaches maximum value (for example, " symbol # 12 " (Figure 52))) when, " subcarrier (/ frequency) index be increased 1, and then " symbol (/ time) index " from " symbol (/ when Between) index " minimum value increase again (only consider " to its mapping compile symbol " symbol (/ resource location (/ size)).This In, for example, when first symbol " symbol #0 " and/or last symbol " symbol #13 " due to " alleviation of AGC problem " and/or " preventing Chong Die with (following) WAN UL TX (SF) " and when being perforated, Figure 52 and/or Figure 54 can guarantee than Figure 51 and/or figure 53 more advanced " control (/ scheduling) information transmits/receives performance " are (because of the control (/ scheduling) information lost due to punching Number in relation to " compiling symbol " is relatively small).Here, for example, (control (/ scheduling) is information-related) " compiling symbol " can be by It is configured to be mapped before " data " (in the form of wherein " data " quilt " rate-matched ") or is punched by preferential (/ first) It is mapped.

The example of Figure 55 to Figure 58 diagram mapping control (/ scheduling) information-related " compiling symbol ".

More specifically, Figure 55 and/or Figure 57 and Figure 57 and/or Figure 58 corresponds to the case where Figure 12 and Figure 14.Here, example Such as, it is assumed that the number of control (/ scheduling) information-related (will incidentally) " compiling symbol " is " 33 ".Here, it " is compiled due to related Translate symbol " mapping ruler (/ direction), " alleviation of AGC problem " and/or " prevent information-related with (control (/ scheduling)) " compiling Symbol " and " data " overlapping (closely follow WAN UL TX (SF)) " and mapping order among the character position (/ number) that is perforated/ The case where punching (/ rate-matched) is assumed with Figure 51 to Figure 54 is identical.

Figure 59 to Figure 73 diagram is controlled according to (regular #1-1) and (regular #1-3) (/ (regular #1-2)) in case of fig.12 The mapping of system (/ scheduling) information-related " compiling symbol ".

More specifically, Figure 59 to Figure 73 diagram in case of fig.12 according to (regular #1-1) and (regular #1-3) (/ (regular #1-2)) mapping control (/ scheduling) information-related " compiling symbol " example.Here, for example, it is assumed that control (/ tune Degree) number of information-related (will incidentally) " compiling symbol " is " 39 ".Here, it can be assumed for instance that the first symbol " symbol # 0 " and/or last symbol " symbol #13 " due to " alleviation of AGC problem " and/or " prevent with (following WAN UL TX (SF)) (be not used for control (/ scheduling) information-related " compiling symbol " mapping) overlapping and be perforated.

Figure 74 to Figure 82 diagram is controlled according to (regular #1-1) and (regular #1-3) (/ (regular #1-2)) in the case of fig. 13 The mapping of system (/ scheduling) information-related " compiling symbol ".

More specifically, Figure 74 to Figure 82 diagram in the case of fig. 13 according to (regular #1-1) and (regular #1-3) (/ (regular #1-2)) map the example for controlling (/ scheduling) information-related " compiling symbol ".Here, for example, it is assumed that control (/ scheduling) Information-related (will the incidentally) number of " compiling symbol " is " 39 ".Here it is possible to assume the first symbol " symbol #0 " and/or most The latter symbol " symbol #13 " due to " alleviation of AGC problem " and/or " prevent with (following WAN UL TX (SF)) (not by with In information-related " compiling symbol " mapping of control (/ scheduling)) overlapping and be perforated.

Alternatively, (predefined (/ sent with the signal) control with opposite high priority can be made with definition rule (/ scheduling) information (for example, " MCS index (/ order of modulation) " and/or " TBS index (/ transport block size) ") such as Figure 15 to Figure 50 It is sent with illustrated in Figure 59 to Figure 82, and sends the control with opposite low priority (or other control (/ scheduling) information) System (/ scheduling) information is sent, as Figure 51 into Figure 58 illustrated in.

It alternatively, can be with definition rule, so that having control (/ scheduling) information of opposite low priority to be mapped to it The upper symbol for executing the channel estimation based on " extrapolation (/ extrapolation) ", and the control (/ scheduling) with relatively high priority Information is mapped to the symbol for executing the channel estimation based on " interpolation " thereon.

Figure 83, which is illustrated, is wherein based on control (/ scheduling) information MAP with opposite low priority " outside to execution thereon The symbol of the channel estimation of pushing manipulation (/ extrapolation) " and there will be control (/ scheduling) information MAP of opposite high priority to thereon Execute the example of the symbol of the channel estimation based on " interpolation ".

More specifically, Figure 83 diagram holds the control wherein with opposite low priority (/ scheduling) information MAP to thereon Row is based on extrapolation (/ extrapolation) " channel estimation symbol and there is control (/ scheduling) information MAP of opposite high priority To thereon execute based on " interpolation " channel estimation symbol rule be applied to Figure 28 state example.Here, for example, Assuming that the number of " compiling symbol " information-related with the control (/ scheduling) with opposite high priority is " 22 ", and with tool The number of the control (/ scheduling) of opposite low priority information-related " compiling symbol " is " 8 ".

Alternatively, can will be different from " data " (predefined (/ with signal send) " order of modulation " (or " order of modulation " that " data " determine is identical " order of modulation " with being directed to) it can be applied in method set forth above in spy Determine the information that (will incidentally) " control/(scheduling) " is sent on channel (for example, " PSSCH ").

Alternatively, it can send or predefine above-mentioned from base station (for example, passing through SIB/ (dedicated) RRC signal) with signal Which of method of proposition will be used to incidentally control (/ scheduling) information.Alternatively, which in above-mentioned proposed method One will be used to incidentally will incidentally specific control (/ scheduling) information or send from base station signals or predefined specific control thereon System (/ scheduling) information or character position.Here, when the corresponding rule of application, for example, different " piggybacking method " or different " incidentally character position " can be applied to different control (/ scheduling) information.

Control information (S1420) is sent using compiling symbol referring back to Figure 14, UE.Here, information and date one is controlled It rises and is piggybacked and is sent.Here, the detailed example that wherein control information and date is piggybacked by UE together is described above.

Can include by the example of method set forth above as one in the method realized by this document, and can be with The method for being regarded as proposing.Although (or polymerization) can be combined in addition, method set forth above can be realized independently The method of some propositions.For example, although for the ease of described in this document and have been based on 3GPP LTE description and proposed Method, but the range of the system to its proposed method of application can extend to the system other than 3GPP LTE.Example Such as, the method for the proposition of the literature can extend and be applied to D2D and communicate.Here, D2D communication refers to for example using radio Channel is by UE and another UE direct communication.Here, although UE refers to user terminal, ought such as base station network equipment root Send according to the communication between UE/when receiving signal, the network equipment can be considered as a kind of UE.For example, can with definition rule so that Method set forth above is only applied to mode -2 (V2X (/D2D)) communication, type -1 (V2X (/D2D)) discovery (and/or mode - 11 (V2X (/D2D)) communication and/or type -2 (V2X (/D2D)) discovery).In addition, for example, can be with definition rule, so that above-mentioned The method of proposition be only applied in coverage area D2D (/V2X) UE (and/or participate in relayed communications outer covering D2D (/V2X) UE, RRC_CONNECTED D2D (/V2X) UE, RRC_IDLE D2D (/V2X) UE, relaying D2D (/V2X) UE and/or long-range (D2D(/V2X))UE).It alternatively, can be with definition rule, so that method set forth above is only applied to " periodical V2X message Transmission operation " (and/or " V2X message transfer operations of event triggering ").

Figure 84 is the block diagram that diagram realizes the UE of the embodiment of the literature for it.

It include processor 1110, memory 1120 and radio frequency (RF) unit 1130 with reference to Figure 84, UE 1100.

According to embodiment, function/operation/method described in this document is may be implemented in processor 1110.For example, processor 1110 can map in subframe and control information-related compiling symbol.In addition, processor 1110 will control information and date It is piggybacked together, and sends control information using the compiling symbol of mapping.

Transceiver 1130 is connected to processor 1110 and sends/receive RF signal.

Processor may include that specific integrated circuit (ASIC), other chipsets, logic circuit and/or data processing are set It is standby.Memory may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage Medium and/or other storage equipment.Transceiver may include the baseband circuit for handling RF signal.It is real when passing through software realization When applying, the above method can be implemented as executing the module (processing, function etc.) of above-mentioned function.Module can be stored in storage It is executed in device and by processor.Memory can be set inside or outside processor, and is connected to by various any means knowns Processor.