KR20170112839A - Method and apparatus for resources configuration for scheduling assignment and data transmission in v2x communication - Google Patents

Abstract

A method and apparatus for performing transmission on a direct link in a wireless communication system. A method for performing a direct link transmission in a first terminal according to an aspect of the present invention includes: determining resources for transmission of a Scheduling Assignment (SA); Mapping the SA to the determined resource and transmitting to the second terminal; And mapping data on the data transmission resource indicated by the SA to the second terminal. The resource to which at least one of the SA or the data is mapped may be a duration D value within a PSCCH period or a plurality of time resource patterns (TRP) within a PSCCH period Can be determined based on the starting point and the length value.

Description

[0001] METHOD AND APPARATUS FOR RESOURCES FOR CONFIGURATION FOR SCHEDULING AND DATA TRANSMISSION IN V2X COMMUNICATION [0002] METHOD AND APPARATUS FOR RESOURCES CONFIGURATION FOR SCHEDULING ASSIGNMENT AND DATA TRANSMISSION IN V2X COMMUNICATION [

The present invention relates to a wireless communication system, and more particularly to a recording medium in which a resource configuration method, apparatus, software, or software for scheduling assignment and data transmission in V2X communication is stored.

Vehicle-to-X (V2X) communication refers to a communication system that exchanges information such as traffic conditions while communicating with road infrastructure and other vehicles during operation. V2X is a vehicle-to-vehicle (V2V), which refers to communication between vehicles, a vehicle-to-pedestrian (V2P), which refers to communication between terminals carried by the vehicle and an individual, a roadside unit / Vehicle-to-infrastructure / network (V2I / N), which refers to the communication between a network and a network. In this case, the roadside unit (RSU) may be a transportation infrastructure entity implemented by a base station or a fixed terminal. For example, it may be an independent entity that transmits speed notifications to the vehicle.

In V2X, an SA pool for a control channel in which a Scheduling Assignment (SA) is configured and an associated data pool for the associated data channel are defined.

Until now, SA pools and data pools have been multiplexed using resources separated on the time axis, but in this case latency problems can occur in V2X considering high-speed vehicles. Therefore, a method of multiplexing the SA pool and the data pool using the resources classified on the frequency axis is being discussed, but no specific method has been defined yet.

The present invention provides a method and apparatus for indicating one or more transmission resources of an SA or data.

The present invention provides a method and apparatus for indicating one or more transmission resources of an SA or data as a specific resource within a PSCCH (Physical Sidelink Control Channel) period.

The present invention provides a method and apparatus for indicating one or more transmission resources of an SA or data as a specific resource among a plurality of time resource patterns (TRPs).

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, a method is provided for performing a direct link transmission at a first terminal in accordance with an aspect of the present invention. The method comprises: determining resources for Scheduling Assignment (SA) transmission; Mapping the SA to the determined resource and transmitting to the second terminal; And mapping data on the data transmission resource indicated by the SA to the second terminal. The resource to which at least one of the SA or the data is mapped may be a duration D value within a PSCCH period or a plurality of time resource patterns (TRP) within a PSCCH period Can be determined based on the starting point and the length value.

The features briefly summarized above for the present invention are only illustrative aspects of the detailed description of the invention which are described below and do not limit the scope of the invention.

According to the present invention, a method and apparatus for indicating one or more transmission resources of SA or data can be provided.

According to the present invention, a method and apparatus can be provided for indicating one or more transmission resources of SA or data as a specific resource within a PSSCH Physical Sidelink Control Channel (PSSCH) period.

According to the present invention, a method and apparatus for indicating one or more transmission resources among an SA or data as a specific resource among a plurality of time resource patterns (TRPs) can be provided.

According to the present invention, a scheme for efficiently constructing an SA and minimizing the delay of data transmission can be provided.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention, illustrate various embodiments of the invention and, together with the description, serve to explain the principles of the invention.
1, 2 and 3 are views for explaining a V2X scenario related to the present invention.
4 illustrates, by way of example, Time Division Multiplexing (TDM) of an SA pool and associated data pool.
5 illustrates an exemplary SA pool and FDM of a data pool according to the present invention.
6 and 7 are diagrams showing multiplexing of SA transmission and data transmission in the FDM scheme according to the present invention.
Figures 8 and 9 are illustrations of examples of SA pool and data pool configurations in accordance with the present invention.
10 is a diagram exemplarily showing a PSSCH transmission sub-frame according to the present invention.
11 is a diagram showing an SA transmission subframe or a data transmission subframe according to the present invention.
FIG. 12 shows an example in which the SA transmission subframe and the data transmission subframe according to the present invention are configured in TRP units.
13 and 14 are flowcharts illustrating an SA resource allocation method and a data resource allocation method according to an exemplary embodiment of the present invention.
15 is a diagram for explaining a configuration of a wireless device according to the present invention.

Hereinafter, the contents related to the present invention will be described in detail with reference to exemplary drawings and embodiments. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

In addition, the present invention will be described with respect to a wireless communication network. Operations performed in the wireless communication network may be performed in a process of controlling a network and transmitting or receiving a signal from a system (e.g., a base station) And may be performed in a process of transmitting or receiving a signal from a terminal coupled to the wireless network.

That is, it is apparent that various operations performed for communication with a terminal in a network composed of a plurality of network nodes including a base station can be performed by a network node other than the base station or the base station. A 'base station (BS)' may be replaced by a term such as a fixed station, a Node B, an eNode B (eNB), an access point (AP) In addition, 'terminal' may be replaced with terms such as User Equipment (UE), Mobile Station (MS), Mobile Subscriber Station (MSS), Subscriber Station (SS) .

The terms used mainly as abbreviations used in the present invention are defined as follows.

D2D: Device to Device (communication)

ProSe: (Device to Device) Proximity Services

SL: Sidelink

SCI: Sidelink Control Information

PSSCH: Physical Sidelink Shared Channel

PSBCH: Physical Sidelink Broadcast Channel

PSCCH: Physical Sidelink Control Channel

PSDCH: Physical Sidelink Discovery Channel

SLSS: Sidelink Synchronization Signal (= D2DSS (D2D Synchronization Signal))

SA: Scheduling assignment

In addition, various modes of operation may be defined depending on the resource allocation scheme for the direct link (e.g., D2D, ProSe, or SL communication). If the data and control information for a direct link (e.g., D2D, ProSe, or SL communication) are referred to as direct data and direct control information, respectively, Mode 1 may indicate that the terminal directly transmits data and direct control information Mode 2 refers to an operation mode in which a base station (or a repeater) accurately schedules a resource used for a mobile station in a resource pool to directly transmit data and direct control information. Quot; operation mode "

V2X is a term collectively referred to as V2V, V2P, and V2I / N, and each of V2V, V2P, and V2I / N can be defined in connection with LTE communication as shown in Table 1 below.

For V2V operation based on PC5, which is a D2D communication link among V2X (i.e., a direct interface between two devices supporting ProSe), the following Tables 2, 3 and 4 Are being considered.

1, 2 and 3 are views for explaining a V2X scenario related to the present invention.

Table 2 and Figure 1 illustrate scenarios that support V2X operation based only on the PC5 interface. 1 (a) shows a V2V operation, (b) shows a V2I operation, and FIG. 1 (c) shows a V2P operation.

Table 3 and Figure 2 illustrate scenarios that support V2X operation based only on the Uu interface (i.e., the interface between the UE and the eNB). 2 (a) shows the V2V operation, (b) shows the V2I operation, and FIG. 2 (c) shows the V2P operation.

Table 4 and Figure 3 illustrate scenarios that support V2X operation using both Uu and PC5 interfaces. FIG. 3 (a) shows Scenario 3A in Table 4, and FIG. 3 (b) shows Scenario 3B in Table 4.

Hereinafter, various examples of the present invention for multiplexing SA and data for V2X communication will be described.

First, for V2V communication on the PC5 interface, two schemes for multiplexing SA and data can be considered. The first scheme (Option 1) supports transmission of the SA and its associated data in the same subframe, and the second scheme (Option 2) corresponds to the case where each SA transmission precedes all data transmissions associated with it precede. In addition, the SA channel and the data channel can be frequency division multiplexed (FDM).

Hereinafter, an SA pool for a control channel (i.e., a PSCCH) in which an SA is configured and an associated data pool for a data channel (i.e., PSSCH) associated therewith are divided into FDM schemes.

The SA pool corresponds to a set of candidates of available resources for transmission of SA, and the data pool corresponds to a set of candidates of resources available for transmission of data. An SA pool or a data pool may be specified as a combination of a time resource pool and a frequency resource pool. A time resource pool specifying an SA pool or a data pool may correspond to a subframe pool, and a frequency resource pool may correspond to a resource block (RB) pool. In addition, one SA pool and one data pool may correspond to one PSCCH period, but are not limited thereto.

4 illustrates, by way of example, Time Division Multiplexing (TDM) of an SA pool and associated data pool.

As shown in FIG. 4, the SA pool for the control channel (i.e., PSCCH) in which the SA is configured and the associated data pool for the associated data channel (i.e., PSSCH) can be distinguished by the TDM scheme. In this case, in order to receive the new data packet after instructing the control information through the new SA while receiving the current data packet after the control information is indicated via the SA at the receiving side of the direct data, at least " data pool + SA pool ". Multiplexing of the TDM type SA pool and associated data pool may cause a latency problem in V2X considering a high-speed vehicle.

5 illustrates an exemplary SA pool and FDM of a data pool according to the present invention.

As shown in FIG. 5, the SA pool for the control channel (i.e., PSCCH) in which the SA is configured and the data pool for the data channel (i.e., PSSCH) can be classified by the FDM scheme. In this case, when control information for receiving a new data packet is transmitted through the SA pool divided by FDM while receiving the current data packet after the control information is indicated through the SA, At the time of receiving the current data packet after the information is indicated, at least "SA pool" time is required to receive the new data packet after instructing the control information through the new SA.

In addition, although the SA pool and the data pool can be multiplexed by the FDM scheme, in the example of FIG. 5, the data pool follows the control information of the previously transmitted SA pool. That is, the SA pool and the associated data pool are multiplexed in a TDM manner. More specifically, in the example of FIG. 5, SA pool 1 and data pool 1 are associated, SA pool 2 and data pool 2 are associated, and SA pool 3 and data pool 3 are associated.

Alternatively, in the examples of FIGS. 6 and 7 below, the SA pool and the associated data pool can be multiplexed in the FDM scheme coexisting in the same time domain (e.g., the same subframe). In this case, the delay time from control information transmission to data transmission is greatly reduced.

6 and 7 are diagrams showing multiplexing of SA transmission and data transmission in the FDM scheme according to the present invention. Fig. 6 is an example corresponding to the first scheme (Option 1) described above, i.e., supporting the transmission of SA and its associated data in the same subframe. FIG. 7 is an example corresponding to the above-described second scheme (Option 2), i.e., the manner in which each SA transmission precedes all data transmissions associated therewith.

Table 5 below shows information included in downlink control information (DCI) format 5 used for PSCCH scheduling and PSSCH scheduling, and Table 6 shows information included in SCI format 0 used for scheduling of PSSCH.

A method for determining which resources are used for SA transmission in an SA pool, in which a base station directly indicates a resource used for SA transmission (i.e., mode 1), or a method in which a UE uses resources (I.e., mode 2) may be applied.

In the example of FIGS. 4 and 5, the time-frequency resource location used for the SA transmission in the SA pool can be indicated through the 6-bit size "Resource for PSCCH" information in Table 5 above. In mode 1, the base station can transmit "Resource for PSCCH" information through the DCI format 5 to the terminal to which the SA is to be transmitted. In mode 2, the UE can autonomously determine the resource to transmit the SA.

4 and 5, the time axis resource allocation position to which data is to be transmitted in the data pool can be indicated through 7-bit time resource pattern information in Table 5, The resource allocation position can be indicated through the " Resource block assignment and hopping resource allocation "information in Table 5. The frequency hopping can be indicated in the next transmission after the initial transmission according to the" Frequency hopping flag " In mode 1, the base station can transmit "Time resource pattern", "Resource block assignment and hopping resource allocation", and "Frequency hopping flag" information through the DCI format 5 to the terminal to which data is to be transmitted. In mode 2, the terminal can autonomously determine the resources to transmit data.

In both mode 1 and mode 2, scheduling for transmission of data (i.e., PSSCH) through SCI format 0 in Table 6 to the receiving terminal that receives data from a transmitting terminal that transmits data in inter- Information can be provided.

In the example of FIG. 6 and FIG. 7, the SA pool and the associated data pool coexist in the same time domain and are classified by the FDM scheme. That is, the SA pool and the associated data pool do not exist separately. Therefore, as shown in FIG. 4 or 5, a mechanism for determining a resource allocation position on a time-frequency by a 6-bit "Resource for PSCCH" value is not required in the SA pool, - There is a need to allocate resources on the frequency.

Figures 8 and 9 are illustrations of examples of SA pool and data pool configurations in accordance with the present invention.

8 corresponds to a TDM (Time Division Multiplexing) scheme corresponding to resources classified in the time domain, and the SA pool and the data pool correspond to resources classified in the frequency domain. (Frequency Division Multiplexing) scheme.

In the example of FIG. 8, a predetermined offset (for example, at a time point when a value of a reference time point (for example, a System Frame Number (SFN), a Sidelink Frame Number (SLFN), or a DFN For example, after the offset (O)), a PSCCH period may exist periodically.

At this time, specific subframes may belong to the SA pool within the first predetermined period (i.e., the first period) of each PSCCH period. At this time, the specific subframe may be all uplink subframes in Mode 1, and may be indicated as a bitmap in Mode 2, as shown in FIG.

Also, in each PSCCH period, specific subframes may belong to the data pool within a period (i.e., a second period) from a specific point after the first period (starting point of the second period) to a point where the PSCCH period ends . In this case, the start point of the second section in the PSCCH period may be associated with the point where the SA pool ends in Mode 1, and may be associated with the offset (O ₂ ) in Mode 2.

Also, the specific subframes in the second section may be all uplink subframes in Mode 1 and may be indicated as bitmaps in Mode 2, as shown in FIG.

Thus, according to the exemplary configuration of the SA pool and data pool of FIG. 8, an associated pool of SA pools for the control channel (i.e., PSCCH) and associated data channels (i.e., PSSCH) TDM method, and specific examples thereof may correspond to FIG.

Next, in the example of FIG. 9, the PSCCH period is periodically (for example, after offset (0)) at a reference point on the time axis (for example, when SFN, SLFN, or DFN is 0) And the SA pool and the data pool can be divided into FDM within each PSCCH period.

In this case, specific subframes may belong to the SA pool and the data pool in all the intervals within each PSCCH period. At this time, the specific subframe may be all uplink subframes in Mode 1, and may be indicated as a bitmap in Mode 2 as shown in FIG. That is, the subframes belonging to the SA pool and the subframes belonging to the data pool can be the same, and the SA pool and the data pool can be classified into the FDM scheme by different frequency resources.

Thus, according to an exemplary configuration of the SA pool and data pool of FIG. 9, an associated pool of SA pools for the control channel (i.e., PSCCH) and associated data channels (i.e., PSSCH) FDM scheme, and specific examples thereof may correspond to the above-mentioned Figs. 5 to 7.

Hereinafter, examples of the present invention will be described with respect to a time resource pattern (TRP), which is a pattern for determining a subframe for transmitting PSSCH, which is a channel for data transmission.

10 is a diagram exemplarily showing a PSSCH transmission sub-frame according to the present invention.

In the example of FIG. 10, the L _PSSCH subframes corresponding to a data pool (specifically, a subframe pool on a time axis only) in one PSCCH period may correspond to N _TRP subframes repeated N times. Here, N _TRP sub-time-axis resource pattern corresponding to the frame (Time Resource Pattern, hereinafter TRP) is applied N times repetition can be determined PSSCH transmission subframe.

At this time, the maximum number of possible time axis resource pattern (TRP) is 128.

L _PSSCH is the number of subframes belonging to the data pool. For example, according to an example of the TDM system of Figure 8, L _PSSCH in the case of Mode 1 is capable of within a PSCCH period corresponding to the number of all uplink sub-frame of the second section, in the case of Mode 2, the And may correspond to the number of subframes corresponding to the bit value 1 of the bitmap corresponding to the second section within one PSCCH period. Or, according to an example of the FDM method shown in Fig. 9, L _PSSCH in the case of Mode 1 is capable of corresponding to the number of all uplink sub-frames within a PSCCH period, corresponding to the case of Mode 2 is a PSCCH period May correspond to the number of subframes corresponding to the bit value 1 of the bitmap. In the FDM scheme of FIG. 9, since the SA pool and the data pool are the same in terms of the subframe, the L _PSSCH may correspond to the number of subframes belonging to the SA pool.

N _TRP A subframe in which a bit value of 1 is indicated in a bitmap having a length N _TRP corresponding to one subframe may correspond to a subframe in which a PSSCH is transmitted. Here, the number of 1's in the bitmap of length N _TRP is K _TRP .

For example, the values of N _TRP and K _TRP according to each UL / DL setting (FDD (Frequency Division Duplex) or TDD (Time Division Duplex) in Mode 1 and Mode 2) And Table 8, respectively.

Tables 9 and 10 below illustrate the process of determining a subframe for PSSCH transmission in a side link transmission mode 1 (i.e., Mode 1) and a side link transmission mode 2 (i.e., Mode 2), respectively.

In addition, the N _TRP may be 8 as in Table 11 below, 7 as in Table 12, or 6 as in Table 13.

In the case where the SA pool and the data pool are multiplexed in the FDM scheme as shown in FIG. 9 (for example, the SA pool and the data pool can exist in the same subframe and are divided into FDM as shown in FIG. 5 or 6) A case in which the time axis resource pattern (TRP) is repeatedly applied will be described with reference to FIG.

In this case, when subframes for transmitting SAs are allocated to all subframes in the SA pool, considering that the subframes transmitting data are at least a subframe such as a subframe transmitting at least SA, or a subframe thereafter, It can be a significant limitation on the allocation of the transmission subframe.

Meanwhile, when instructing subframes that transmit SAs in association with subframes that transmit data indicated by repeated application of the time-axis resource pattern (TRP), the subframes transmitting the SA transmit the subframes in the PSCCH period Since the time axis resource pattern (TRP) can only be allocated within the first subframes, it can be very inefficient in terms of resource allocation.

Therefore, the SA transmission subframe is allocated not only to all subframes belonging to the SA pool in the PSCCH period, but also to the first specific subframes belonging to the SA pool in the PSCCH period, It may be considered to allocate subframes after a certain subframe among the subframes. In this case, resources can be allocated more efficiently, and the latency can be reduced because the SA can be transmitted even in the middle of the SA pool.

Also, in the case of the data transmission subframe, the data transmission subframe is allocated to all the subframes belonging to the data pool in the PSCCH period according to the repeated application of the time axis resource pattern (TRP) in the data pool in the PSCCH period And a data transmission subframe may be allocated to subframes after a certain subframe among the subframes belonging to the data pool in the PSCCH period.

11 is a diagram showing an SA transmission subframe or a data transmission subframe according to the present invention.

An SA may be transmitted in SA transmit subframes that may be allocated among subframes after a specific duration (D () (or offset) within a PSCCH period.

That is, the group of one or more subframes classified according to D _N duration (D) in the PSCCH period may be referred to as a first subframe group, a second subframe group, ..., a D _{N N} subframe group have. In this case, among the subframes corresponding to the SA pool (or data pool) in each subframe group, at least one of SA or data may be transmitted in a subframe determined as an SA transmission subframe or a data transmission subframe .

That is, each of the subframe groups corresponds to an SA allocation region or a data allocation region, and among the subframes belonging to at least one allocation region of the SA or data, May be a transmission sub-frame for transmitting at least one of SA or data.

Here, the SA or data allocation region means a candidate subframe (s) in which transmission of SA or data can exist. An SA or data transmission subframe refers to a subframe in which an SA or data transmission actually exists (or is scheduled).

More specifically, a period corresponding to a certain period or a PSCCH period after a specific duration (D) or offset within a PSCCH period may be an 'SA allocation region' within a PSCCH period, and in an 'SA allocation region' And the SA is transmitted in the SA transmission subframes allocated according to the specific scheme. At this time, the specific scheme may utilize 'Resource for PSCCH' or may be associated with 'Time resource pattern' for allocation of data transmission subframe, as in the case of an existing SA transmission subframe allocation method.

In the same manner, a period corresponding to a certain period or a period after the specific duration (D) or offset within the PSCCH period or the end of the PSCCH period may be a 'data allocation region' within the PSCCH period, The data is transmitted in the data transmission subframes allocated according to a particular scheme. In this case, in the case of data associated with a specific SA, the 'data allocation region' including the subframes through which the data is transmitted has the same duration (or offset) as the 'SA allocation region' ) Or have a longer duration (or offset) in time. Alternatively, the 'data allocation region' including the subframes through which the data is transmitted may have the same size (length) as the 'SA allocation region' including the subframes through which the specific SA is transmitted, It might be.

Hereinafter, a method of defining and indicating a specific duration (D) or offset within the PSCCH period will be described.

Example 1

The value of Duration (D) can be fixed.

Example 1-1

The value of Duration (D) may be determined according to a certain ratio with respect to the length of the PSCCH period.

Example 1-1-1

A certain ratio of the length of the PSCCH period is indicated by a 1-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

And may indicate D = 0 if the 1-bit field has a first value (e.g., 0).

를 지시할 수 있다. If the 1-bit field has a second value (e.g., 1)

.

Example 1-1-2

The PSCCH period length is an example indicated by a 2 bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate D = 0 if the 2-bit field has a first value (e.g., 00).

을 지시할 수 있다.If the 2-bit field has a second value (e.g., 01)

.

을 지시할 수 있다.If the 2-bit field has a third value (e.g., 10)

.

을 지시할 수 있다.If the 2-bit field has a fourth value (e.g., 11)

.

Examples 1-2

The value of Duration (D) may be determined according to a certain ratio of the size of the L _PSSCH .

Example 1-2-1

L _PSSCH size is an example indicated by a one-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

And may indicate D = 0 if the 1-bit field has a first value (e.g., 0).

를 지시할 수 있다. If the 1-bit field has a second value (e.g., 1)

.

Examples 1-2-2

L _PSSCH size is an example indicated by a 2-bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate D = 0 if the 2-bit field has a first value (e.g., 00).

을 지시할 수 있다.If the 2-bit field has a second value (e.g., 01)

.

을 지시할 수 있다.If the 2-bit field has a third value (e.g., 10)

.

을 지시할 수 있다.If the 2-bit field has a fourth value (e.g., 11)

.

Example 1-3

The value of Duration (D) may be determined according to a certain ratio to the number of N _TRPs .

Example 1-3-1

A percentage of the number of N _TRPs is an example indicated by a one-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

And may indicate D = 0 if the 1-bit field has a first value (e.g., 0). This means that the SA or data allocation area starts from the first TRP.

를 지시할 수 있다. 이는, K 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K=1 또는 2 의 값을 가질 수 있다.If the 1-bit field has a second value (e.g., 1)

. This means that SAs or data allocation areas start from K or later TRPs. For example, K = 1 or 2.

Examples 1-3-2

A percentage of the number of N _TRPs is an example indicated by a 2-bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate D = 0 if the 2-bit field has a first value (e.g., 00). This means that the SA or data allocation area starts from the first TRP.

을 지시할 수 있다. 이는, K₁ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₁=1 의 값을 가질 수 있다.If the 2-bit field has a second value (e.g., 01)

. This means that SA or data allocation area starts from TRPs after K ₁ . For example, it may have a value of K ₁ = 1.

을 지시할 수 있다. 이는, K₂ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₂=2 의 값을 가질 수 있다.If the 2-bit field has a third value (e.g., 10)

. This means that SA or data allocation area starts from TRPs after K ₂ . For example, it may have a value of K ₂ = 2.

을 지시할 수 있다. 이는, K₃ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₃=3 의 값을 가질 수 있다.If the 2-bit field has a fourth value (e.g., 11)

. This means that SA or data allocation area starts from TRPs after K ₃ . For example, it may have a value of K ₃ = 3.

Example 2

The value of Duration (D) may be indicated via an upper layer (e. G., Radio Resource Control (RRC)) signaling.

Example 2-1

The value of Duration (D) may be determined according to a certain ratio with respect to the length of the PSCCH period.

Example 2-1-1

A certain ratio of the length of the PSCCH period is indicated by a 1-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

And may indicate D = 0 if the 1-bit field has a first value (e.g., 0).

And D = A if the 1-bit field has a second value (e.g., 1). Where the value of A may be indicated via RRC signaling. The A value indicates a certain ratio value for a specific number of subframes or PSCCH periods for all subframes within the PSCCH period.

Example 2-1-2

The PSCCH period length is an example indicated by a 2 bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate D = 0 if the 2-bit field has a first value (e.g., 00).

And may indicate D = A ₁ if the 2-bit field has a second value (e.g., 01). Where the value of A ₁ may be indicated via RRC signaling. The A ₁ value indicates a certain ratio value for a specific number of subframes or PSCCH periods for all subframes within the PSCCH period.

And may indicate D = A ₂ if the 2-bit field has a third value (e.g., 10). Where the value of A ₂ can be indicated via RRC signaling. The A ₂ value indicates a certain ratio value for a specific number of subframes or PSCCH periods for all subframes within the PSCCH period.

If the 2-bit field has a fourth value (e.g., 11), then D = A ₃ may be indicated. Wherein A ₃ values may be sent via RRC signaling. A ₃ indicates a certain ratio value for a specific number of subframes or PSCCH periods for all subframes within the PSCCH period.

Example 2-2

The value of Duration (D) may be determined according to a certain ratio of the size of the L _PSSCH .

Example 2-2-1

L _PSSCH size is an example indicated by a one-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

And may indicate D = 0 if the 1-bit field has a first value (e.g., 0).

And may indicate D = B if the 1-bit field has a second value (e.g., 1). Where the B value can be indicated via RRC signaling. A value indicates a percentage value for a specific number of sub-frames or L _PSSCH for the L sub-frame in the PSCCH _PSSCH period.

Example 2-2-2

L _PSSCH size is an example indicated by a 2-bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate D = 0 if the 2-bit field has a first value (e.g., 00).

If the 2-bit field having a second value (e.g., 01) may indicate a D = B _1. Where the value of B ₁ may be indicated via RRC signaling. B ₁ value indicates a percentage value for a specific number of sub-frames or L _PSSCH for the L sub-frame in the PSCCH _PSSCH period.

And may indicate D = B ₂ if the 2-bit field has a third value (e.g., 10). Where the value of B ₂ may be indicated via RRC signaling. B ₂ value indicates a percentage value for a specific number of sub-frames or L _PSSCH for the L sub-frame in the PSCCH _PSSCH period.

If the 2-bit field has a fourth value (e.g., 11), then D = B ₃ may be indicated. Where the B ₃ value can be indicated via RRC signaling. B ₃ value indicates a percentage value for a specific number of sub-frames or L _PSSCH for the L sub-frame in the PSCCH _PSSCH period.

Example 2-3

The value of Duration (D) may be determined according to a certain ratio to the number of N _TRPs .

Example 2-3-1

A percentage of the number of N _TRPs is an example indicated by a one-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

And may indicate D = 0 if the 1-bit field has a first value (e.g., 0). This means that the SA or data allocation area starts from the first TRP.

를 지시할 수 있다. 이는, K 개 이후의 TRP 부터 SA 또는 Data 할당 영역이 시작된다는 의미이다. 예를 들어, K는 RRC 시그널링될 수 있다. If the 1-bit field has a second value (e.g., 1)

. This means that SA or data allocation area starts from TRPs after K. For example, K may be RRC signaled.

Example 2-3-2

A percentage of the number of N _TRPs is an example indicated by a 2-bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate D = 0 if the 2-bit field has a first value (e.g., 00). This means that the SA or data allocation area starts from the first TRP.

을 지시할 수 있다. 이는, K₁ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₁은 RRC 시그널링될 수 있다.If the 2-bit field has a second value (e.g., 01)

. This means that SA or data allocation area starts from TRPs after K ₁ . For example, K ₁ can be RRC signaled.

을 지시할 수 있다. 이는, K₂ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₂ 은 RRC 시그널링될 수 있다.If the 2-bit field has a third value (e.g., 10)

. This means that SA or data allocation area starts from TRPs after K ₂ . For example, K ₂ may be RRC signaled.

을 지시할 수 있다. 이는, K₃ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₃ 은 RRC 시그널링될 수 있다.If the 2-bit field has a fourth value (e.g., 11)

. This means that SA or data allocation area starts from TRPs after K ₃ . For example, K ₃ may be RRC signaled.

12 shows an example in which the SA transmission subframe and the data transmission subframe according to the present invention are configured in TRP units. For example, the subframes in which the SA and data are transmitted within the PSCCH period may be configured in units of a time axis resource pattern (TRP).

으로 정의될 수 있다.10, for the entire SA pool and the data pool in one PSCCH period as shown in FIG. 10, the SA and the data that can be allocated to the SA and the data for each UE in units of a time axis resource pattern (TRP) The area can be determined. That is, in FIG. 10, allocation of SA or data can be considered in the entire N repeated timesource resource patterns (TRP) within one PSCCH period. More specifically, in the example of FIG. 10, all subframes in which the bit value of the bitmap corresponding to the time axis resource pattern (TRP) is indicated as 1 in all of the N repeated time axis resource patterns (TRP) Or data for one or more of the transmission subframes. On the other hand, in the example of FIG. 12, one or more of SA or data can be considered in only a part of N repeated time-base resource patterns (TRPs). Here, N =

. ≪ / RTI >

In order to set some of the N repeatedly applied time axis resource patterns (TRP) as SA or data allocation areas, it is necessary to instruct the start and end of SA or data allocation area in the time axis resource pattern (TRP) Can be considered. For example, a method of indicating an offset value for indicating a starting point and a length from the starting point to the end can be applied.

In the example of FIG. 12, subframes indicated by all the time-axis resource patterns (TRP) in # 0 to # N-1 indicated by all the time-axis resource patterns (TRP) within one PSCCH period Frames in a sub-frame indicated by a time axis resource pattern (TRP) in one PSCCH period belonging to a data allocation region, instead of data transmission in subframes (i.e., subframes in which the bit value of the bitmap is indicated by 1) (The subframes indicated by the time axis resource pattern (TRP) of N = # 1 and # 2 in FIG. 12, that is, the subframes in which the bit value of the bitmap is indicated by 1).

In the case of the SA, the subframes indicated by the time axis resource pattern (TRP) in one PSCCH period belonging to the SA allocation region (the subframe indicated by the time axis resource pattern (TRP) of # 1 and # 2 in FIG. (I.e., subframes in which the bit value of the bitmap is indicated as 1) in the first few subframes.

Hereinafter, when the SA or the data allocation region (if the allocation region for the SA and the allocation region for the data associated with the SA are the same on the time axis), the SA / Data allocation region Will be referred to herein).

Example 3

For example, indicating a starting point (i.e., an offset value).

Example 3-1

The starting point (i.e., offset value) may be indicated via a one-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

If the 1-bit field has a first value (e.g., 0), it can indicate offset = 0.

를 지시할 수 있다. 이는, K 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K는 1, 2,

등의 값을 가질 수 있다. 예를 들어, K의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다. If the 1-bit field has a second value (e.g., 1)

. This means that SAs or data allocation areas start from K or later TRPs. For example, K is 1, 2,

And the like. For example, the value of K may be used as a fixed value and may be RRC signaled.

Example 3-2

The starting point (i.e., the offset value) may be indicated via a 2-bit field. In addition, the 2-bit field may be indicated via SA. Four cases can be indicated by a 2-bit field.

And may indicate offset = 0 if the 2-bit field has a first value (e.g., 00).

을 지시할 수 있다. 이는, K₁ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₁은 1,

, 또는

등의 값을 가질 수 있다. 예를 들어, K₁의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 2-bit field has a second value (e.g., 01)

. This means that SA or data allocation area starts from TRPs after K ₁ . For example, K ₁ is 1,

, or

And the like. For example, the value of K ₁ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, K₂ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₂은 2,

, 또는

등의 값을 가질 수 있다. 예를 들어, K₂의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 2-bit field has a third value (e.g., 10)

. This means that SA or data allocation area starts from TRPs after K ₂ . For example, K ₂ is 2,

, or

And the like. For example, the value of K ₂ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, K₃ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₃은 3,

, 또는

등의 값을 가질 수 있다. 예를 들어, K₃의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 2-bit field has a fourth value (e.g., 11)

. This means that SA or data allocation area starts from TRPs after K ₃ . For example, K ₃ is 3,

, or

And the like. For example, the value of K ₃ may be used as a fixed value and may be RRC signaled.

Example 3-3

The starting point (i.e., offset value) may be indicated via a 3-bit field. In addition, the 3-bit field can be indicated via SA. Eight cases can be indicated by a 3-bit field.

If the 3-bit field has a first value (e.g., 000), it may indicate offset = 0.

을 지시할 수 있다. 이는, K₁ 개 이후의 TRP 부터 SA 또는 data 할당 영역이 시작된다는 의미이다. 예를 들어, K₁은 1의 값을 가질 수 있다. 예를 들어, K₁의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a second value (e.g., 001)

. This means that SA or data allocation area starts from TRPs after K ₁ . For example, K ₁ may have a value of one. For example, the value of K ₁ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, K₂ 개 이후의 TRP 부터 SA 또는 d ata 할당 영역이 시작된다는 의미이다. 예를 들어, K₂은 2의 값을 가질 수 있다. 예를 들어, K₂의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a third value (e.g., 010)

. This means that SA or d ata allocation areas start from TRPs after K ₂ . For example, K ₂ may have a value of 2. For example, the value of K ₂ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, K₃ 개 이후의 TRP 부터 SA 또는 d ata 할당 영역이 시작된다는 의미이다. 예를 들어, K₃은 3의 값을 가질 수 있다. 예를 들어, K₃의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a fourth value (e.g., 011)

. This means that SA or d ata allocation areas start from TRPs after K ₃ . For example, K ₃ may have a value of 3. For example, the value of K ₃ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, K₄ 개 이후의 TRP 부터 SA 또는 d ata 할당 영역이 시작된다는 의미이다. 예를 들어, K₄은 4의 값을 가질 수 있다. 예를 들어, K₄의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a fifth value (e.g., 100)

. This means that SA or d ata allocation areas start from TRPs after K ₄ . For example, K ₄ may have a value of 4. For example, the value of K ₄ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, K₅ 개 이후의 TRP 부터 SA 또는 d ata 할당 영역이 시작된다는 의미이다. 예를 들어, K₅은 5의 값을 가질 수 있다. 예를 들어, K₅의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a sixth value (e.g., 101)

. This means that SA or d ata allocation areas start from TRPs after K ₅ . For example, K ₅ can have a value of 5. For example, the value of K ₅ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, K₆ 개 이후의 TRP 부터 SA 또는 d ata 할당 영역이 시작된다는 의미이다. 예를 들어, K₆은 6의 값을 가질 수 있다. 예를 들어, K₆의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a seventh value (e.g., 110)

. This means that SA or d ata allocation area starts from TRPs after K ₆ . For example, K ₆ may have a value of 6. For example, the value of K ₆ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, K₇ 개 이후의 TRP 부터 SA 또는 d ata 할당 영역이 시작된다는 의미이다. 예를 들어, K₇은 7의 값을 가질 수 있다. 예를 들어, K₇의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has an eighth value (e.g., 111)

. This means that SA or d ata allocation areas start from TRPs after K ₇ . For example, K ₇ may have a value of 7. For example, the value of K ₇ may be used as a fixed value or RRC signaled.

Example 4

For example, indicating the length between the starting point and the ending point.

Example 4-1

The length (i. E., Length value) may be indicated via a one-bit field. In addition, a 1-bit field can be indicated via SA. Two cases can be indicated by a 1-bit field.

If a 1-bit field has a first value (e.g., 0), then length = ∞. This means that the SA or data allocation area extends to the end of the PSCCH period after the starting point (i.e., offset) and the TRP is repeatedly applied within this interval.

를 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L은 1, 2,

등의 값을 가질 수 있다. 예를 들어, L의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다. If the 1-bit field has a second value (e.g., 1)

. This means that the SA or data allocation area corresponds to only L TRPs after the starting point (i.e., offset), and the TRP is repeated only within this interval. For example, L is 1, 2,

And the like. For example, the value of L may be used as a fixed value and may be RRC signaled.

Example 4-2

The length (i. E., Length value) may be indicated via a 2-bit field. In addition, the 2-bit field may be indicated via SA. Two cases can be indicated by a 2-bit field.

If the 2-bit field has a first value (e.g., 00), it may indicate length = ∞. This means that the SA or data allocation area extends to the end of the PSCCH period after the starting point (i.e., offset) and the TRP is repeatedly applied within this interval.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₁ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₁은 1,

, 또는

등의 값을 가질 수 있다. 예를 들어, L₁의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 2-bit field has a second value (e.g., 01)

. This means that the SA or data allocation area corresponds to only L ₁ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L _< 1 _> is 1,

, or

And the like. For example, the value of L ₁ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₂ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₂은 2,

, 또는

등의 값을 가질 수 있다. 예를 들어, L₂의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 2-bit field has a third value (e.g., 10)

. This means that the SA or data allocation area corresponds to only L ₂ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L < ₂ > is 2,

, or

And the like. For example, the value of L ₂ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₃ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₃은 3,

, 또는

등의 값을 가질 수 있다. 예를 들어, L₃의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 2-bit field has a fourth value (e.g., 11)

. This means that the SA or data allocation area corresponds to only L ₃ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L < ₃ > is 3,

, or

And the like. For example, the value of L ₃ may be used as a fixed value, or it may be RRC signaled.

Example 4-3

The length (i. E., The length value) may be indicated via a 3-bit field. In addition, the 3-bit field can be indicated via SA. Eight cases can be indicated by a 3-bit field.

If the 3-bit field has a first value (e.g., 000), it may indicate length = ∞. This means that the SA / Data allocation area extends to the end of the PSCCH period after the start point (i.e., offset), and TRP is repeatedly applied within this interval.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₁ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₁은 1의 값을 가질 수 있다. 예를 들어, L₁의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a second value (e.g., 001)

. This means that the SA or data allocation area corresponds to only L ₁ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L ₁ may have a value of one. For example, the value of L ₁ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₂ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₂은 2의 값을 가질 수 있다. 예를 들어, L₂의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a third value (e.g., 010)

. This means that the SA or data allocation area corresponds to only L ₂ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L ₂ may have a value of 2. For example, the value of L ₂ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₃ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₃은 3의 값을 가질 수 있다. 예를 들어, L₃의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a fourth value (e.g., 011)

. This means that the SA or data allocation area corresponds to only L ₃ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L ₃ may have a value of 3. For example, the value of L ₃ may be used as a fixed value, or it may be RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₄ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₄은 4의 값을 가질 수 있다. 예를 들어, L₄의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a fifth value (e.g., 100)

. This means that the SA or data allocation area corresponds to only L ₄ TRPs after the starting point (i.e., offset), and the TRP is repeated only within this interval. For example, L ₄ may have a value of 4. For example, the value of L ₄ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₅ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₅은 5의 값을 가질 수 있다. 예를 들어, L₅의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a sixth value (e.g., 101)

. This means that the SA or data allocation area corresponds to only L ₅ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L ₅ may have a value of 5. For example, the value of L ₅ may be used as a fixed value and may be RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₆ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복된다는 의미이다. 예를 들어, L₆은 6의 값을 가질 수 있다. 예를 들어, L₆의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has a seventh value (e.g., 110)

. This means that the SA or data allocation area corresponds to only L ₆ TRPs after the starting point (i.e., offset), and TRP repeats only within this interval. For example, L ₆ may have a value of 6. For example, the value of L ₆ may be used as a fixed value or RRC signaled.

을 지시할 수 있다. 이는, SA 또는 data 할당 영역이 시작점(즉, 오프셋) 이후로 L₇ 개의 TRP에만 해당되고, 이 구간 내에서만 TRP가 반복 적용된다는 의미이다. 예를 들어, L₇은 7의 값을 가질 수 있다. 예를 들어, L₇의 값은 고정된 값으로서 사용될 수도 있고, RRC 시그널링될 수도 있다.If the 3-bit field has an eighth value (e.g., 111)

. This means that the SA or data allocation area corresponds to only L ₇ TRPs after the starting point (i.e., offset), and TRP is repeated only within this interval. For example, L ₇ may have a value of 7. For example, the value of L ₇ may be used as a fixed value or RRC signaled.

In the above-described examples, the starting point (i.e., offset) and the length (i.e., length) between the starting point and the ending point may be configured as independent combinations. For example, when the embodiment 3-2 and the embodiment 4-2 are combined, a total of 4 bits of signaling can be included in the SA by 2 bits each. Alternatively, the embodiment 3-1 and the embodiment 4-3 may be combined, the embodiment 3-2 and the embodiment 4-1 may be combined, and the starting point of the SA or the data allocation area and / The length can be indicated.

In addition, the starting point (i.e., offset) and the length between the starting point and the ending (i.e., length) may consist of (or jointly encoded) the following combined fields and may be indicated via SA. In the example of Table 14 or Table 15 below, the combination of the start point and the length is exemplarily indicated by a 2-bit field, but the scope of the present invention is not limited thereto, and a 3-bit or 4-bit field .

The examples of Tables 14 and 15 show the case where the combination of the start point and the length between the start point and the end is 2 bits, and each of the offset value and the length value may be a fixed value and the RRC . In the example of Table 15, if length is ∞, it means that the SA or data allocation area extends to the end of the PSCCH period after the starting point (ie offset), and TRP is repeatedly applied within this interval.

13 and 14 are signal flow diagrams between a base station (eNB), a first terminal (UE A) and a second terminal (UE B) according to an example of the present invention.

FIG. 13 is a flowchart illustrating an example of a SA resource allocation and a data resource allocation method according to the present invention.

FIG. 13 is applicable to Mode 1, which is an operation mode in which a base station (or a repeater) schedules a resource used by a mobile station to directly transmit data and direct control information.

In step S1310, the base station (eNodeB) transmits DCI (for example, DCI format 5) including information for PSCCH scheduling and PSSCH scheduling to a first terminal UE A as a Physical Downlink Control Channel (PDCCH) or Enhanced PDCCH ). ≪ / RTI > For example, the DCI may indicate fields (e.g., field (s) indicating Duration (D) values, or offset and length values) associated with the SA / data resource allocation described in the various examples of the invention described above (S)). ≪ / RTI >

In step S1320, the first UE can confirm (or determine) a resource to transmit at least one of SA or data (i.e., SA / data) based on fields related to SA / data resource allocation, data can be mapped.

In step S1330, the first MS may transmit an SCI (for example, SCI format 0) including the PSSCH scheduling information (i.e., SA) mapped to the determined resource to the second MS through the PSCCH. For example, the SCI may include fields (e.g., field (s) indicating Duration (D) values, or fields indicating offset and length values) associated with the data resource allocation described in the various examples of the invention described above (S)) to the second terminal. Also, in step S1340, the first terminal may transmit data mapped to the determined resource to the second terminal through the PSSCH.

In step S1350, the second terminal determines a resource to which data to be transmitted is allocated based on the SA transmitted from the first terminal, and receives and decodes data on the determined resource.

FIG. 14 is a flowchart for explaining another example of the SA resource allocation and data resource allocation method according to the present invention.

The example of FIG. 14 can be applied to Mode 2, which is an operation mode in which a mobile station itself selects a resource in a resource pool to directly transmit data and direct control information.

In step S1410, the first UE UE A transmits information related to resource allocation for one or more of SA or data (i.e., SA / data) to be transmitted to the second UE UE B (i.e., (E.g., the field (s) indicating the Duration (D) value, or the field (s) indicating the offset and length values) associated with the data resource allocation described in the examples.

In step S1420, the first UE can confirm (or determine) a resource to transmit at least one of SA or Data (i.e., SA / Data) based on the fields related to the SA / data resource allocation determined by itself, SA / data can be mapped.

In step S1430, the first MS may transmit an SCI (for example, SCI format 0) including the PSSCH scheduling information (i.e., SA) mapped to the determined resource to the second MS through the PSCCH. For example, the SCI may include fields (e.g., field (s) indicating Duration (D) values, or fields indicating offset and length values) associated with the data resource allocation described in the various examples of the invention described above (S)) to the second terminal. Also, in step S1440, the first terminal may transmit data mapped to the determined resource to the second terminal through the PSSCH.

In step S1450, the second terminal can determine a resource to which data to be transmitted is allocated based on the SA transmitted from the first terminal, and can receive and decode data on the determined resource.

Although the above-described exemplary methods are represented by a series of acts for clarity of explanation, they are not intended to limit the order in which the steps are performed, and if necessary, each step may be performed simultaneously or in a different order. In addition, not all illustrated steps are necessary to implement the method according to the present invention.

The foregoing embodiments include examples of various aspects of the present invention. While it is not possible to describe every possible combination for expressing various aspects, one of ordinary skill in the art will recognize that other combinations are possible. Accordingly, it is intended that the invention include all alternatives, modifications and variations that fall within the scope of the following claims.

The scope of the present invention includes an apparatus (e.g., a wireless device and its components described with reference to FIG. 15) that processes or implements an operation in accordance with various embodiments of the present invention.

15 is a diagram for explaining a configuration of a wireless device according to the present invention.

FIG. 15 shows a first terminal device 100 corresponding to an example of a direct link transmission device and a second terminal device 200 corresponding to an example of a downlink transmission device or a direct link reception device.

The first terminal device 100 may include a processor 110, an antenna unit 120, a transceiver 130, and a memory 140.

The processor 110 performs baseband-related signal processing, and may include a first module and a second module. The first module may correspond to an upper layer processing unit and may process operations of a MAC (Medium Access Control) layer, an RRC (Radio Resource Control) layer, or higher layers. The second module may correspond to a physical layer processing unit and may perform operations of a physical (PHY) layer (e.g., uplink transmission signal processing, downlink reception signal processing, direct link transmission signal processing, Lt; / RTI > However, the present invention is not limited thereto, and the first and second modules may be integrated as one module, or may be divided into three or more modules. In addition to performing baseband-related signal processing, the processor 110 may control the operation of the first terminal device 100 as a whole.

The antenna unit 120 may include one or more physical antennas, and may support MIMO transmission / reception when the antenna unit 120 includes a plurality of antennas. The transceiver 130 may include a radio frequency (RF) transmitter and an RF receiver. The memory 140 may store information processed by the processor 110, software related to the operation of the first terminal device 100, an operating system, applications, and the like, and may include components such as buffers.

The second terminal device 200 may include a processor 210, an antenna unit 220, a transceiver 230, and a memory 240.

The processor 210 performs baseband-related signal processing, and may include a first module and a second module. The first module may correspond to an upper layer processing unit and may process operations of a MAC (Medium Access Control) layer, an RRC (Radio Resource Control) layer, or higher layers. The second module may correspond to a physical layer processing unit and may perform operations of a physical (PHY) layer (e.g., uplink transmission signal processing, downlink reception signal processing, direct link transmission signal processing, Lt; / RTI > However, the present invention is not limited thereto, and the first and second modules may be integrated as one module, or may be divided into three or more modules. The processor 210 may control the operation of the second terminal device 200 in addition to performing baseband related signal processing.

The antenna unit 220 may include one or more physical antennas, and may support MIMO transmission / reception when the antenna unit 220 includes a plurality of antennas. The transceiver 230 may include an RF transmitter and an RF receiver. The memory 240 may store information processed by the processor 210, software related to the operation of the second terminal device 200, an operating system, applications, and the like, and may include components such as buffers.

The first module 111 of the processor 110 of the first terminal device 100 generates one or more of SAs including scheduling information of data or data to be transmitted to the second terminal on the direct link, 112).

The second module 112 of the processor 110 of the first terminal device 100 may determine one or more of the time resources or frequency resources on which data (or PSSCH) or SA (or PSCCH) will be transmitted on the direct link. In addition, the allocated area or transmission resource of one or more of SA or data (i.e., SA / data) may include fields related to the SA / data resource allocation described in the various examples of the present invention ) Value, or a field (s) indicating an offset and a length value). Here, the first terminal device 100 may determine the information related to the SA / data resource allocation on its own, or may determine based on the information received from the base station. In addition, the second module 112 may map the SA / data on the determined resource and transmit it to the second terminal device 200.

The second module 212 of the processor 210 of the second terminal device 200 transmits the SA (or PSCCH) including the resource allocation information to which the data (or PSSCH) on the direct link from the first terminal device 100 is to be transmitted, From the first terminal device 100 and can receive data on the resource indicated by the SA. The first module 211 may receive the data received through the second module 212 and perform decoding.

The operation of the processor 110 of the terminal 100 or the processor 210 of the base station 200 described above may be implemented by software processing or hardware processing or may be implemented by software and hardware processing.

The scope of the present invention includes software (or an operating system, application, firmware, program, etc.) that enables an operation according to various embodiments of the present invention to be performed on a device or computer, It includes a possible medium.

While various embodiments of the present invention have been described with reference to 3GPP LTE or LTE-A systems, they may be applied to various mobile communication systems.

Claims (1)

A method for performing direct link transmission at a first terminal of a wireless communication system,
Scheduling Assignment (SA) Determining resources for transmission;
Mapping the SA to the determined resource and transmitting to the second terminal; And
Mapping data on a data transmission resource indicated by the SA and transmitting the data to the second terminal,
The resource to which at least one of the SA or the data is mapped may be a duration D value within a PSCCH period or a plurality of time resource patterns (TRP) within a PSCCH period And determining a start point and a length value based on the start point and the length value.

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