WO2019017732A1 - 무선통신시스템에서 단말이 복수의 cc 상에서 자원을 선택하고 신호를 전송하는 방법 및 장치 - Google Patents
무선통신시스템에서 단말이 복수의 cc 상에서 자원을 선택하고 신호를 전송하는 방법 및 장치 Download PDFInfo
- Publication number
- WO2019017732A1 WO2019017732A1 PCT/KR2018/008234 KR2018008234W WO2019017732A1 WO 2019017732 A1 WO2019017732 A1 WO 2019017732A1 KR 2018008234 W KR2018008234 W KR 2018008234W WO 2019017732 A1 WO2019017732 A1 WO 2019017732A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchor
- resource
- signal
- time interval
- transmission
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the following description relates to a wireless communication system, and more particularly, to a method and apparatus for a terminal to select resources and transmit signals on a plurality of component carriers (V2X).
- V2X component carriers
- a wireless communication system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.).
- multiple access systems include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, an orthogonal frequency division multiple access (OFDMA) system, a single carrier frequency division multiple access (MC-FDMA) system, and a multi-carrier frequency division multiple access (MC-FDMA) system.
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- OFDMA orthogonal frequency division multiple access
- MC-FDMA single carrier frequency division multiple access
- MC-FDMA multi-carrier frequency division multiple access
- a direct link between User Equipment (UE) and a device-to-device (D2D) communication establishes a communication method in which voice, data, and the like are directly exchanged without going through an evolved NodeB (eNB) It says.
- D2D communication may include a scheme such as UE-to-UE communication, peer-to-peer communication, and the like.
- the D2D communication method can be applied to M2M (Machine-to-Machine) communication, MTC (Machine Type Communication), and the like.
- D2D communication is considered as a solution to overcome the burden of the base station due to the rapidly increasing data traffic.
- D2D communication unlike a conventional wireless communication system, since data is exchanged between devices without going through a base station, overload of the network can be reduced.
- D2D communication it is expected to reduce the procedure of the base station, reduce the power consumption of devices participating in D2D, increase the data transmission speed, increase the capacity of the network, load distribution, and increase the cell coverage.
- V2X Vehicle to Everything
- a technical problem is a resource selection and signal transmission method of a terminal.
- One embodiment of the present invention provides a method for a terminal to select resources and transmit signals on a plurality of component carriers (CCs) in a wireless communication system, the method comprising: performing sensing for a first time period on an anchor CC ; Performing a sensing on a non-anchor CC for a second time interval; Selecting a resource to which the terminal transmits a signal on the anchor CC at the end of the first time interval and the second time interval; And transmitting a signal over a resource on the non-anchor CC associated with a selected resource on the anchor CC and a selected resource on the anchor CC, wherein the second time period is necessarily included in a first time period , And a signal transmission method on a plurality of CCs in which the end of the first time interval and the end of the second time interval are the same.
- CCs component carriers
- a UE apparatus for selecting resources and transmitting signals on a plurality of component carriers (CCs) in a wireless communication system
- the UE apparatus comprising: a transmitting apparatus and a receiving apparatus; And a processor, wherein the processor performs sensing for a first time interval on an anchor CC, performs sensing for a second time interval on a non-anchor CC, And at the end of the second time interval, the terminal selects a resource to transmit a signal on the anchor CC, and selects a resource on the anchor CC and a resource on the non-anchor CC linked from the selected resource on the anchor CC
- the second time interval is necessarily included in a first time interval, and the end of the first time interval and the second time interval are the same UE device.
- Selection of a resource on the anchor CC may necessarily include reservation of resources for retransmission of the signal after a predetermined time.
- the selection of resources on the non-anchor CC may optionally include reservation of resources for retransmission of the signal after a predetermined time.
- the resource selected on the non-anchor CC may have the same time and frequency index as the resource selected on the anchor CC.
- the control information transmitted on the anchor CC may include only information indicating the non-anchor CC.
- the resource selected on the non-anchor CC may be the same as either the time or frequency index selected on the anchor CC.
- the control information transmitted on the anchor CC indicates information indicating a time region of a resource region in which the signal is transmitted on the non-anchor CC or a frequency region of a resource region on which the signal is transmitted on the non-anchor CC Information.
- the information indicating the time zone may be offset information from the control information transmitted on the anchor CC.
- the information indicating the frequency domain may be frequency axis offset information from the resource selected on the anchor CC.
- the resource selection on the non-anchor CC can be performed only on resources within a predetermined range from the resources selected on the anchor CC.
- the anchor CC may be set for each UE group.
- the anchor CC may be set for each V2X service.
- the anchor CC may be one indicated by the network or one preset by the network.
- the V2X terminal when the V2X terminal transmits a signal through carrier aggregation, it can effectively process sensing, resource selection, and signaling related thereto.
- 1 is a diagram showing a structure of a radio frame.
- FIG. 2 is a diagram illustrating a resource grid in a downlink slot.
- 3 is a diagram showing a structure of a downlink sub-frame.
- FIG. 4 is a diagram illustrating the structure of an uplink subframe.
- FIG. 5 is a configuration diagram of a wireless communication system having multiple antennas.
- FIG. 6 shows a subframe in which the D2D synchronization signal is transmitted.
- FIG. 8 shows an example of a D2D resource pool for D2D communication.
- FIG. 9 is a diagram for explaining a transmission mode and a scheduling method used in V2X.
- FIG. 10 shows a method of performing resource selection in V2X.
- 11 is a diagram for explaining data transmission in SA in D2D.
- Fig. 12 is a diagram for explaining data transmission with SA in V2X. Fig.
- 13 to 14 illustrate the frame structure of the NRAT.
- FIG. 15 illustrates a resource selection method according to an embodiment of the present invention.
- 16 is a diagram showing a configuration of a transceiver.
- each component or characteristic may be considered optional unless otherwise expressly stated.
- Each component or feature may be implemented in a form that is not combined with other components or features.
- some of the elements and / or features may be combined to form an embodiment of the present invention.
- the order of the operations described in the embodiments of the present invention may be changed. Some configurations or features of certain embodiments may be included in other embodiments, or may be replaced with corresponding configurations or features of other embodiments.
- the BS has a meaning as a terminal node of a network that directly communicates with the MS.
- the particular operation described herein as performed by the base station may be performed by an upper node of the base station, as the case may be.
- 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) Repeaters can be replaced by terms such as Relay Node (RN), Relay Station (RS), and so on.
- the term 'terminal' may be replaced with terms such as User Equipment (UE), Mobile Station (MS), Mobile Subscriber Station (MSS), and Subscriber Station (SS).
- a base station may also be used to mean a scheduling execution node, a cluster header, or the like. If a BS or a relay transmits a signal transmitted by the MS, it can be regarded as a kind of MS.
- a cell described below is applied to a transmission / reception point of a base station (eNB), a sector, a remote radio head (RRH), a relay, May be used as a generic term for identifying component carriers.
- eNB base station
- RRH remote radio head
- Embodiments of the present invention may be supported by standard documents disclosed in at least one of the IEEE 802 systems, 3GPP systems, 3GPP LTE and LTE-Advanced (LTE-Advanced) systems, and 3GPP2 systems, which are wireless access systems. That is, the steps or portions of the embodiments of the present invention that are not described in order to clearly illustrate the technical idea of the present invention can be supported by the documents. In addition, all terms disclosed in this document may be described by the standard document.
- CDMA Code Division Multiple Access
- FDMA Frequency Division Multiple Access
- TDMA Time Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- CDMA may be implemented in radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
- the TDMA may be implemented in a wireless technology such as Global System for Mobile communications (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE).
- GSM Global System for Mobile communications
- GPRS General Packet Radio Service
- EDGE Enhanced Data Rates for GSM Evolution
- OFDMA may be implemented in wireless technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA).
- UTRA is part of the Universal Mobile Telecommunications System (UMTS).
- 3GPP (3rd Generation Partnership Project) LTE (Long Term Evolution) is a part of E-UMTS (Evolved UMTS) using E-UTRA, adopting OFDMA in downlink and SC-FDMA in uplink.
- LTE-A Advanced
- WiMAX can be described by the IEEE 802.16e standard (WirelessMAN-OFDMA Reference System) and the advanced IEEE 802.16m standard (WirelessMAN-OFDMA Advanced system).
- WiMAX can be described by the IEEE 802.16e standard (WirelessMAN-OFDMA Reference System) and the advanced IEEE 802.16m standard (WirelessMAN-OFDMA Advanced system).
- WiMAX can be described by the IEEE 802.16e standard (Wireless
- uplink / downlink data packet transmission is performed on a subframe basis, and one subframe is defined as a predetermined time interval including a plurality of OFDM symbols.
- the 3GPP LTE standard supports a Type 1 radio frame structure applicable to Frequency Division Duplex (FDD) and a Type 2 radio frame structure applicable to TDD (Time Division Duplex).
- a downlink radio frame is composed of 10 subframes, and one subframe is composed of two slots in a time domain.
- the time taken for one subframe to be transmitted is referred to as a transmission time interval (TTI).
- TTI transmission time interval
- the length of one subframe may be 1 ms and the length of one slot may be 0.5 ms.
- One slot includes a plurality of OFDM symbols in the time domain and a plurality of resource blocks (RBs) in the frequency domain.
- RBs resource blocks
- OFDMA is used in the downlink, so an OFDM symbol represents one symbol period.
- the OFDM symbol may also be referred to as an SC-FDMA symbol or a symbol interval.
- a resource block (RB) is a resource allocation unit and may include a plurality of consecutive subcarriers in one block.
- the number of OFDM symbols included in one slot may vary according to the configuration of a CP (Cyclic Prefix).
- the CP has an extended CP and a normal CP.
- the number of OFDM symbols included in one slot may be seven.
- the OFDM symbol is configured by an extended CP, since the length of one OFDM symbol is increased, the number of OFDM symbols included in one slot is smaller than that of a normal CP.
- the extended CP for example, the number of OFDM symbols included in one slot may be six. If the channel condition is unstable, such as when the UE moves at a high speed, an extended CP may be used to further reduce inter-symbol interference.
- one slot When a normal CP is used, one slot includes 7 OFDM symbols, and therefore one subframe includes 14 OFDM symbols. At this time, the first two or three OFDM symbols of each subframe may be allocated to a physical downlink control channel (PDCCH), and the remaining OFDM symbols may be allocated to a physical downlink shared channel (PDSCH).
- PDCCH physical downlink control channel
- PDSCH physical downlink shared channel
- the Type 2 radio frame is composed of two half frames. Each half frame includes five subframes, a downlink pilot time slot (DwPTS), a guard period (GP), an uplink pilot time slot (UpPTS) One of the subframes is composed of two slots.
- the DwPTS is used for initial cell search, synchronization, or channel estimation in the UE. UpPTS is used to match the channel estimation at the base station and the uplink transmission synchronization of the terminal.
- the guard interval is a period for eliminating the interference occurring in the uplink due to the multi-path delay of the downlink signal between the uplink and the downlink.
- one subframe consists of two slots regardless of the type of the radio frame.
- the structure of the radio frame is merely an example, and the number of subframes included in a radio frame, the number of slots included in a subframe, and the number of symbols included in a slot can be variously changed.
- One downlink slot includes seven OFDM symbols in the time domain, and one resource block (RB) includes 12 subcarriers in the frequency domain, but the present invention is not limited thereto.
- one slot includes 7 OFDM symbols in the case of a normal CP (Cyclic Prefix), but one slot may include 6 OFDM symbols in an extended CP (CP).
- CP extended CP
- Each element on the resource grid is called a resource element.
- One resource block includes 12 x 7 resource elements.
- the number N DL of resource blocks included in the downlink slot depends on the downlink transmission bandwidth.
- the structure of the uplink slot may be the same as the structure of the downlink slot.
- the downlink control channels used in the 3GPP LTE / LTE-A system include, for example, a Physical Control Format Indicator Channel (PCFICH), a Physical Downlink Control Channel (PDCCH) And a Physical Hybrid Automatic Repeat Request Indicator Channel (PHICH).
- PCFICH includes information on the number of OFDM symbols transmitted in the first OFDM symbol of the subframe and used for control channel transmission in the subframe.
- the PHICH includes an HARQ ACK / NACK signal as a response to the uplink transmission.
- the control information transmitted through the PDCCH is referred to as downlink control information (DCI).
- the DCI includes uplink or downlink scheduling information or includes an uplink transmission power control command for an arbitrary terminal group.
- the PDCCH includes a resource allocation and transmission format of a downlink shared channel (DL-SCH), resource allocation information of an uplink shared channel (UL-SCH), paging information of a paging channel (PCH), system information on a DL- A set of transmission power control commands for individual terminals in an arbitrary terminal group, transmission power control information, activation of VoIP (Voice over IP), resource allocation of upper layer control messages such as random access response And the like.
- a plurality of PDCCHs may be transmitted within the control domain.
- the UE can monitor a plurality of PDCCHs.
- the PDCCH is transmitted in an aggregation of one or more contiguous Control Channel Elements (CCEs).
- the CCE is a logical allocation unit used to provide the PDCCH with a coding rate based on the state of the wireless channel.
- the CCE corresponds to a plurality of resource element groups.
- the number of CCEs required for the PDCCH may vary depending on the size of the DCI, the coding rate, and the like.
- any one of the CCE numbers 1, 2, 4, and 8 (corresponding to the PDCCH formats 0, 1, 2, and 3 respectively) can be used, and when the size of the DCI is large and / A relatively large number of CCEs can be used for one PDCCH transmission if a low coding rate is required.
- the BS determines the PDCCH format in consideration of the size of the DCI transmitted to the UE, the cell bandwidth, the number of downlink antenna ports, the amount of PHICH resources, and adds a cyclic redundancy check (CRC) to the control information.
- the CRC is masked with an identifier called a Radio Network Temporary Identifier (RNTI) according to the owner or use of the PDCCH.
- RNTI Radio Network Temporary Identifier
- the cell-RNTI (C-RNTI) identifier of the UE may be masked in the CRC.
- C-RNTI cell-RNTI
- a Paging Indicator Identifier (P-RNTI) may be masked in the CRC.
- the PDCCH is for system information (more specifically, the System Information Block (SIB))
- SIB System Information Block
- SI-RNTI system information RNTI
- a random access-RNTI (RA-RNTI) may be masked to the CRC to indicate a random access response that is a response to the transmission of the UE's random access preamble.
- the UL subframe may be divided into a control region and a data region in the frequency domain.
- a physical uplink control channel (PUCCH) including uplink control information is allocated to the control region.
- a physical uplink shared channel (PUSCH) including user data is allocated to the data area.
- PUCCH physical uplink control channel
- PUSCH physical uplink shared channel
- a PUCCH for one terminal is allocated to a resource block pair (RB pair) in a subframe. Resource blocks belonging to a resource block pair occupy different subcarriers for two slots. It is assumed that the resource block pair allocated to the PUCCH is frequency-hopped at the slot boundary.
- a reference signal (RS) A reference signal (RS)
- a packet When a packet is transmitted in a wireless communication system, since the transmitted packet is transmitted through a wireless channel, signal distortion may occur in the transmission process. In order to properly receive the distorted signal at the receiving side, the distortion should be corrected in the received signal using the channel information.
- the channel information In order to determine the channel information, a method is used in which a signal known to both the transmitting side and the receiving side is transmitted, and channel information is detected with a degree of distortion when the signal is received through the channel. The signal is referred to as a pilot signal or a reference signal.
- the reference signal may be divided into an uplink reference signal and a downlink reference signal.
- an uplink reference signal as an uplink reference signal,
- DM-RS demodulation reference signal
- the base station has a Sounding Reference Signal (SRS) for the network to measure the uplink channel quality at different frequencies.
- SRS Sounding Reference Signal
- CRS cell-specific reference signal
- DM-RS DeModulation-Reference Signal
- CSI-RS Channel State Information-Reference Signal
- MBSFN Reference Signal MBSFN Reference Signal transmitted for coherent demodulation on a signal transmitted in MBSFN (Multimedia Broadcast Single Frequency Network) mode
- the reference signal can be roughly classified into two types according to its purpose. There are a target reference signal for channel information acquisition and a reference signal used for data demodulation. The former must be transmitted in a wide band because the UE obtains channel information for the downlink, and even a terminal that does not receive downlink data in a specific subframe must receive the reference signal. It is also used in situations such as handover.
- the latter is a reference signal transmitted together with the resource when the base station transmits the downlink, and the terminal can demodulate the data by measuring the channel by receiving the reference signal. This reference signal should be transmitted in the area where data is transmitted.
- FIG. 5 is a configuration diagram of a wireless communication system having multiple antennas.
- the transmission rate can be improved and the frequency efficiency can be remarkably improved.
- the transmission rate can theoretically increase by the rate of rate increase Ri multiplied by the maximum transmission rate Ro in single antenna use.
- the research trends related to multi-antenna up to now include information theory study related to calculation of multi-antenna communication capacity in various channel environment and multiple access environment, study of wireless channel measurement and modeling of multi-antenna system, improvement of transmission reliability and improvement of transmission rate And research on space-time signal processing technology.
- a communication method in a multi-antenna system will be described in more detail using mathematical modeling. It is assumed that there are Nt transmit antennas and Nt receive antennas in the system.
- the maximum transmittable information is NT.
- the transmission information can be expressed as follows.
- Each transmission information The transmission power may be different.
- Each transmission power The transmission information whose transmission power is adjusted can be expressed as follows.
- Is a diagonal matrix of transmit power Can be expressed as follows.
- Weighting matrix Which distributes the transmission information to each antenna according to the transmission channel condition and the like. Vector Can be expressed as follows.
- Nr reception antennas Can be expressed as a vector as follows.
- the channel When a channel is modeled in a multi-antenna wireless communication system, the channel may be classified according to the transmission / reception antenna index.
- the channel passing through the receiving antenna i from the transmitting antenna j . It is noted that the order of the index is the reception antenna index, and the index of the transmission antenna is the order of the index.
- FIG. 5 (b) shows a channel from the NR transmission antenna to the reception antenna i .
- the channels can be grouped and displayed in vector and matrix form.
- a channel arriving from a total of NT transmit antennas to receive antennas i may be expressed as follows.
- the actual channel includes a channel matrix And additive white Gaussian noise (AWGN) is added.
- AWGN channel matrix And additive white Gaussian noise
- the received signal can be expressed as follows.
- a channel matrix The number of rows and columns of the antenna is determined by the number of transmitting and receiving antennas.
- Channel matrix The number of rows is equal to the number of receiving antennas NR and the number of columns is equal to the number of transmitting antennas Nt. That is, The matrix is NR x Nt.
- the rank of a matrix is defined as the minimum number of independent rows or columns. Thus, the rank of the matrix can not be greater than the number of rows or columns.
- Channel matrix Rank of ) Is limited as follows.
- rank is defined as the number of eigenvalues that are not zero when the matrix is eigenvalue decomposition.
- another definition of a rank is defined as the number of non-zero singular values when singular value decomposition is performed.
- rank in the channel matrix The physical meaning of a channel is the maximum number that can transmit different information on a given channel.
- 'Rank' for MIMO transmission indicates the number of paths that can independently transmit signals at a specific time and specific frequency resources, and 'number of layers' ≪ / RTI > In general, since the transmitting end transmits a number of layers corresponding to the number of ranks used for signal transmission, the rank has the same meaning as the number of layers unless otherwise specified.
- the inter-terminal synchronization acquisition in the D2D communication will be described based on the above description and the existing LTE / LTE-A system.
- the time / frequency synchronization does not match, multiplexing between different terminals in an OFDM signal may be impossible due to inter-cell interference.
- some nodes in order to transmit / receive a D2D signal, some nodes (in this case, a node may be called an eNB, a UE, or a synchronization reference node or SRN) may transmit a D2D synchronization signal (D2DSS, D2D Synchronization Signal) , And the other terminals transmit and receive signals in synchronization with each other.
- D2DSS D2D Synchronization Signal
- the D2D synchronization signal may include a primary synchronization signal PD2DSS (Primary D2DSS or Primary Synchronization Synchronization Signal (PSSS)) and a secondary synchronization signal (SD2DSS (Secondary D2DSS or Secondary Sidelink synchronization signal SSSS)
- PD2DSS Primary D2DSS or Primary Synchronization Synchronization Signal
- SD2DSS Secondary D2DSS or Secondary Sidelink synchronization signal SSSS
- Zadoff-Chu sequence similar to Zadoff-chu sequence
- SSSS Secondary Sidelink synchronization signal
- the SRN becomes the eNB and the D2DSS becomes the PSS / SSS.
- the PD2DSS / SD2DSS conforms to the UL subcarrier mapping scheme.
- a sub-frame in which a D2D synchronization signal is transmitted is shown in Figure 6.
- the PD2DSCH Physical D2D synchronization channel
- the PD2DSCH may be transmitted on the same subframe as the D2DSS or on a following subframe.
- the SRN may be a node transmitting D2DSS, PD2DSCH (Physical D2D synchronization channel).
- the D2DSS may be in a specific sequence form and the PD2DSCH may be in the form of a codeword followed by a sequence or predetermined channel coding that represents specific information.
- the SRN may be an eNB or a specific D2D terminal. In the case of partial network coverage or out of network coverage, the terminal may be an SRN.
- the D2DSS can be relayed for D2D communication with an out of coverage terminal. Also, the D2DSS can be relayed through multiple hops.
- the relaying of the synchronization signal includes not only relaying the synchronization signal of the direct base station to the AF relay but also transmitting the D2D synchronization signal of a different format in accordance with the synchronization signal reception timing. In this manner, the D2D synchronization signal is relayed so that the terminal not covered and the terminals outside the coverage can directly communicate with each other.
- FIG. 8 shows UE1, UE2, and D2D resource pools used by them for performing D2D communication.
- a UE denotes a network equipment such as a base station that transmits / receives signals according to a terminal or a D2D communication scheme.
- a terminal can select a resource unit corresponding to a specific resource in a resource pool representing a set of resources and transmit the D2D signal using the resource unit.
- the receiving terminal UE2 may be configured with a resource pool in which UE1 can transmit signals and detect the signal of UE1 in the pool.
- the resource pool can inform the UE when the UE 1 is in the connection range of the base station, and may be informed by other UEs or determined as predetermined resources if the UE is outside the connection range of the base station.
- a resource pool is composed of a plurality of resource units, and each terminal can select one or a plurality of resource units and use the resource units for its own D2D signal transmission.
- the resource unit may be the same as that illustrated in Fig. 8 (b). Referring to FIG. 8 (b), it can be seen that the total frequency resources are divided into NF pieces and the total time resources are divided into NT pieces to define a total of NF * NT resource units.
- the resource pool is repeated at intervals of NT subframes.
- one resource unit may appear periodically and repeatedly as shown.
- the magnitude of the physical resource unit to which one logical resource unit is mapped may change in a predetermined pattern according to time.
- a resource pool may mean a set of resource units that a terminal to transmit a D2D signal can use for transmission.
- Resource pools can be subdivided into different types. It can be distinguished according to the contents of the D2D signal transmitted from each resource pool. For example, the contents of the D2D signal can be distinguished, and a separate resource pool can be configured for each. As the contents of the D2D signal, there may be an SA (scheduling assignment or physical channel control channel (PSCCH)), a D2D data channel, and a discovery channel.
- SA scheduling assignment or physical channel control channel (PSCCH)
- D2D data channel D2D data channel
- discovery channel discovery channel
- the SA includes information such as a modulation and coding scheme (MCS), a MIMO transmission scheme, a timing advance (TA), and the like required for demodulating the data channel and the resource used for transmission of the D2D data channel, Lt; / RTI > It is also possible that this signal is multiplexed with the D2D data on the same resource unit and transmitted.
- the SA resource pool can be a pool of resources transmitted by being multiplexed with the D2D data by the SA. Alternatively, it may be referred to as a D2D control channel, or a physical sidelink control channel (PSCCH).
- the D2D data channel may be a pool of resources used by the transmitting terminal to transmit user data. If the SA is multiplexed with the D2D data on the same resource unit, only the D2D data channel in the form of excluding the SA information can be transmitted in the resource pool for the D2D data channel. In other words, the REs that were used to transfer SA information on the individual resource units in the SA resource pool can still be used to transfer D2D data in the D2D data channel resource pool.
- the discovery channel may be a resource pool for a message that allows a transmitting terminal to transmit information such as its own ID to allow a neighboring terminal to discover itself.
- the transmission timing determination method of the D2D signal (for example, whether it is transmitted at the reception timing of the synchronous reference signal or a certain TA applied thereto) (E.g., whether the eNB assigns a transmission resource of an individual signal to an individual transmitting UE, or whether an individual transmitting UE selects its own individual signaling resource in the pool), a signal format (e.g., each D2D signal occupies one subframe The number of symbols and the number of subframes used for transmission of one D2D signal), the signal strength from the eNB, the transmission power intensity of the D2D UE, and the like.
- the eNB directly indicates the transmission resource of the D2D transmission UE in the sidelink transmission mode 1, the transmission resource region is set in advance, or the eNB designates the transmission resource region,
- the method of selecting the direct transmission resource is Type 2
- the UE directly transmits in the resource region designated by the eNB, When selecting a resource, it is called Type 1.
- FIG. 9 shows a scheduling scheme according to these two transmission modes.
- the base station allocates resources (S902a) And carries out transmission to the vehicle (S903a).
- resources of other carriers can also be scheduled.
- the vehicle senses resources and resource pools previously set (S901b) from the base station, selects a resource to be used for transmission (S902b) And transmission to another vehicle is performed through the selected resource (S903b).
- a method of reserving transmission resources of the next packet is used for selection of transmission resources.
- V2X two transmissions are performed per MAC PDU.
- selecting a resource for initial transmission resources for retransmission are reserved with a certain time gap. A detailed description thereof is given in 3GPP TS 36.213 V14.6.0 document 14, and is incorporated into the specification as a prior art of the present invention.
- the UE can transmit an SA (or a D2D control signal, SCI (Sidelink Control Information)) through a resource configured from a base station.
- the side link transmission mode 2 terminal is configured with a resource to be used for D2D transmission from the base station. Then, the SA can be selected by selecting the time frequency resource from the configured resource.
- the SA period may be defined as shown in FIG.
- the first SA period may start in a subframe separated by a predetermined offset (SAOffsetIndicator) indicated by upper layer signaling from a specific system frame.
- SAOffsetIndicator a predetermined offset
- Each SA period may include an SA resource pool and a subframe pool for D2D data transmission.
- the SA resource pool may include the last subframe among the subframes indicated as being transmitted from the first subframe of the SA period to the SA in the subframe bitmap (saSubframeBitmap).
- the resource pool for D2D data transmission can be determined to be a subframe used for actual data transmission by applying time-resource pattern for transmission (T-RPT) or time-resource pattern (TRP).
- T-RPT time-resource pattern for transmission
- TRP time-resource pattern
- the T-RPT can be repeatedly applied, and the last applied T- Can be applied as truncated.
- the transmitting terminal performs transmission at the T-RPT bitmap at the indicated T-RPT and transmits one MAC PDU four times.
- V2X i.e., the side link transmission mode 3 or 4
- SA PSCCH
- data PSSCH
- SA and data are transmitted in the FDM scheme.
- FDM frequency resources on the same time resource. 12 shows an example of such a transmission scheme.
- One of the schemes in which the SA and the data are not directly adjacent to each other or the scheme in which the SA and the data are directly adjacent to each other may be used as shown in Fig. 12 (a) .
- the basic unit of such transmission is a subchannel, which is a resource unit having one or more RB sizes on a frequency axis on a predetermined time resource (e.g., a subframe).
- the number of RBs included in the subchannel that is, the size of the subchannel and the start position on the frequency axis of the subchannel, is indicated by upper layer signaling.
- a CAM Cooperative Awareness Message
- DENM Decentralized Environmental Notification Message
- the CAM may include basic vehicle information such as vehicle dynamic status information such as direction and speed, vehicle static data such as dimensions, external lighting conditions, and route history.
- the size of the CAM message may be 50-300 bytes.
- the CAM message shall be broadcast and the latency shall be less than 100 ms.
- the DENM can be a message generated in an unexpected situation such as a vehicle malfunction or an accident.
- the size of the DENM may be less than 3000 bytes, and any vehicle within the transmission range may receive the message.
- the DENM can have a higher priority than the CAM, and having a high priority at this time means that when a case of simultaneous transmission occurs in a UE viewpoint, it means that priority is given to a higher priority, May prefer to transmit a message with a higher priority in terms of time. From a multiple UE perspective, a message with a higher priority may be less likely to receive interference than a message with lower priority, thus lowering the probability of receiving errors.
- CAMs can also have a larger message size if they include security overhead.
- Massive MTC Machine Type Communications
- URLLC Ultra-Reliable and Low Latency Communication
- FIG. 13 to 14 illustrate a frame structure that can be used for NR.
- a DL control channel a DL or an UL data
- a UL control channel can be included in one frame unit.
- DL data scheduling information and UL data scheduling information can be transmitted in the DL control channel.
- ACK / NACK information In the UL control channel, ACK / NACK information, CSI information (modulation and coding scheme information, MIMO transmission related information, ), a scheduling request, and so on.
- DL control / DL data / UL data / UL control may not be configured in one frame. Or the order of the channels constituting one frame may be changed. (For example, DL control / DL data / UL control / UL data or UL control / UL data / DL control / DL data)
- carrier aggregation can be used to improve data transmission rate and reliability even in direct communication between terminals.
- a receiving terminal may receive a signal from an aggregated carrier, perform combining or joint decoding, or transmit a decoded signal to an upper layer to perform soft combining on signals transmitted on different carriers.
- it is necessary for the receiving terminal to indicate the radio resources of the aggregated carriers because it is necessary to know which carriers are aggregated, that is, which carrier signals should be combined.
- the transmitting terminal directly instructed the time frequency position at which the data (PSSCH) is transmitted using the control signal (PSCCH).
- carrier aggregation is indicated via the PSCCH, an additional bit field is required for this indication.
- the reserved bits remaining in the PSCCH are about 5 to 7 bits, and the number of bits is small. Therefore, there is a need for a method for indicating the radio resources of an effectively aggregated carrier, and the following specific methods are described.
- the UE may perform sensing during a first time interval on an anchor CC and during a second time interval on a non-anchor CC. Then, at the end of the first time period and the second time period, after the terminal selects a resource to transmit a signal on the anchor CC, the resource on the anchor CC and the resource on the non-anchor CC linked from the selected resource on the anchor CC Lt; / RTI >
- the anchor CC may be a CC as a reference for resource selection or a CC as a reference for sensing as described later.
- the second time period is necessarily included in the first time period, and the ending time of the first time period and the second time period may be the same. That is, as illustrated in FIG. 15, differential sensing is performed on the anchor CC and the non-anchor CC. Such differential sensing on the anchor CC and the non-anchor CC may be caused by performing resource reservation differently in the anchor CC and the non-anchor CC. Selection of a resource on an anchor CC necessarily includes reservation of a resource for retransmission of a signal after a predetermined time and selection of a resource on a non-anchor CC is performed by selectively reserving resources for retransmission of a signal after a predetermined time . That is, the UE does not perform the resource reservation in the non-anchor CC or can perform only a limited number of resource reservation. More generally, the resource reservation of the anchor CC and the resource reservation of the non-anchor CC are set differently.
- the neighboring terminals can perform the sensing operation assuming that the resource reservation is performed differently (or less) from the anchor CC in the non-anchor CC. This is because the sensing operation is performed stably in the anchor CC and the non-anchor CC is opportunely performing the resource allocation while selectively using the resources as needed. If the resource reservation is performed only at the anchor CC, the performance of the non-anchor CC may not be deteriorated even if the sensing is not performed. Thus, the battery can be reduced by turning off the sensing circuit.
- Anchor CC and non-anchor CC have different sensing methods.
- a sensing-based semi-static resource selection method is used in an anchor CC, and a non-anchor CC uses a random resource selection Method can be used.
- the transmission resource of the non-anchor CC may be a random selection within a limited resource range associated with the resource selected by the anchor CC.
- the number of resource reservation times of the anchor CC and the non-anchor CC or the number of times that the sensing terminals assume the resource reservation may be determined in advance or may be signaled to the terminal by the physical layer or the upper layer signal by the network.
- the transmitting terminal can signal the anchor CC used by the transmitting terminal to the surrounding terminal through the physical layer or the upper layer signal.
- the receiving terminal can determine which carrier is used as an anchor by a transmitter having its own interest, and perform a sensing operation by giving priority to the carrier.
- a resource on the non-anchor CC is associated with a resource on the anchor CC means that a cross-correlated resource selection is performed. Specifically, the selection of a transmission resource of another CC may be restricted due to the selection of a resource of a specific CC.
- This selection of resources is referred to as a selection of correlated resources among the CCs.
- each CC uses the same time-frequency resource (that is, when using exactly the same resource (time, RB index but same CC only)) it is called a fully correlated resource selection and each CC has some resource attributes If only the time resources are the same or only the frequency resource (RB, subchannel index) is the same, this is called partially correlated resource selection.
- the CC for selecting a resource may be referred to as an anchor carrier or anchor CC of resource selection.
- the UE first selects a resource in the resource selection anchor carrier, and determines a resource in either the fully correlated resource selection or the partially correlated resource selection scheme in the remaining CCs according to the selected resource. It is possible to maintain the same / similar position of the radio resources among the always-aggregated carriers.
- the resource selected on the non-anchor CC may be the same time and frequency index as the resource selected on the anchor CC.
- CC component carrier
- the radio resources of CC A and CC B always use the same RB (resource block) index or subchannel index of the same subframe. That is, when a specific terminal transmits a signal through a plurality of CCs, the time and / or frequency resources of the resource region in which the signal of the specific terminal is transmitted are configured identically in each CC.
- the transmitting terminal can indicate through which CC the aggregation occurs through the control signal. That is, the control information transmitted on the anchor CC may include only information indicating the non-anchor CC. That is, the information on the CC to be combined can be signaled in a part of the control signal or the data signal in the anchor CC. For example, if one of the CCs of 8 is indicated, it can be represented by 3 bits. When a plurality of CCs among N CCs are to be indicated simultaneously, the N lengths (including the CC to which the control signal is signaled) or N-1 lengths of bitmaps may be represented.
- the information indicating the non-anchor CC may be signaled in a part of the control signal or the data signal in the anchor CC even when a partially correlated resource selection scheme is used (except for one bit of the CC to which the control signal is signaled).
- the resource selected on the non-anchor CC may be the same as the resource selected on the anchor CC and only one of the time or frequency index.
- only resources within a certain region can be selected based on the resource selected in the anchor CC.
- the information about the specific resource location may be directly signaled, but only a part thereof may be indicated. For example, it is assumed that the location of the time resource is always the same and that only the location of the frequency resource is indicated, or the position of the frequency resource (RB or subchannel index) is always the same.
- the control information transmitted on the anchor CC may include information indicating a time zone of a resource area on which a signal is transmitted on the non-anchor CC, information indicating a frequency area of a resource area on which a signal is transmitted on the non- . ≪ / RTI >
- the information indicating the time domain may be offset information from the control information transmitted on the anchor CC
- the information indicating the frequency domain may be the frequency (or frequency) from the resource selected on the anchor CC (or from the control information transmitted on the anchor CC)
- Axis offset information Specifically, the offset of the time resource or boundary information to be searched by the receiving terminal may be transmitted in a control signal or a partial area of the data signal.
- offset can be expressed as time domain offset from the control signal transmitted from the anchor carrier.
- the boundary may be directly signaled by the anchor carrier, but the boundary is signaled by the long term (signaled from the transmitting terminal as a higher layer signal or predetermined), and the receiving terminal decodes the control signal in the boundary to judge whether or not the data signal is being combined You may.
- Information of frequency resources used for data transmission e.g., the start and / or end index of an RB or subchannel
- RB / subchannel offset information may be signaled at the non-anchor CC.
- the RB / subchannel information of the non-anchor carrier can be signaled unless the same subchannel is used. Since it may require too many bits, it may be expressed simply as offset of RB / sub channel to reduce bit size.
- the ID of the terminal or the packet may be included in a part of the control signal or the data signal, or masked to the CRC of the control signal or the data signal. This is used to confirm whether the packet is for the same terminal when combining the packet.
- a bit sequence may be derived from the ID of the terminal, but it may be a value that the terminal randomly selects for each packet transmission.
- the resource selection on the non-anchor CC can be performed only on resources within a preset range from the resources selected on the anchor CC. That is, in the non-anchor CC, the range of selectable resources can be determined according to the resource selection result of the anchor CC. For example, based on the resource selection result of the anchor CC, it is possible to select among resources within a certain range in time and / or frequency domain. In this case, since there may not be enough resources, random selection can be performed within a certain time and frequency range. Such a random selection may be performed for each transmission or may be performed for a predetermined time by performing resource reservation.
- the time / frequency range or area for performing resource selection in the non-anchor CC may be determined in advance, or the transmitting terminal may signal to peripheral terminals in the physical layer or higher layer signal, Signals can be signaled.
- the anchor CC of the resource selection may be commonly applied to the UEs or may be differently determined for the UEs or UE groups. If anchor CC of resource selection is set in common for the UE, the network can signal the anchor CC to the physical layer or higher layer signal. Similarly, when setting differently for each terminal group, the network can signal the information on the anchor CC to the terminal group to the physical layer or the higher layer signal. For example, the network can instruct the UEs by setting the low frequency CC as the anchor CC. This is to perform the sensing operation more stably using the characteristic that the channel is transmitted farther as the frequency is lower.
- the anchor CC may be set to each UE group (or V2X service).
- the anchor CC and the non-anchor CC can be set differently for the terminal or terminal group.
- the carrier in the high frequency band is selected as the anchor CC, or the carrier in the band of 3 to 4 GHz is selected as the anchor CC in terms of control signal stability. This is to save the battery of the terminal driving the specific application by separating the carriers that mainly perform the sensing and resource reservation according to the specific application and distinguishing the carriers that mainly monitor and sense each application.
- the anchor CC used by the vehicle terminal and the anchor CC used by the pedestrian terminal may be different.
- the anchor CC may be a single CC or a CC group.
- the UE can perform resource allocation of the non-anchor CC and / or resource allocation in the anchor CC group according to the resource allocation of the specific CC in the CC group.
- a single CC may not achieve the required transmission rate for a particular application.
- the resource selection can always be performed in a fully-correlated manner by setting a specific CC group to anchor CC.
- the anchor CC may be set based on the congestion among a plurality of CCs. As described above, the anchor CC is a reference for sensing, and in the case where reservation is performed, collision and interference may occur when the anchor CC is used by terminals having a large number of carriers.
- a base station or a relay node can use the above-described method.
- examples of the proposed method described above can also be included as one of the implementing methods of the present invention, and thus can be considered as a kind of proposed methods.
- the proposed schemes described above may be implemented independently, but may be implemented in a combination (or merging) of some of the proposed schemes.
- the information on whether or not the proposed methods are applied is transmitted to the base station by notifying the terminal through a predefined signal (for example, a physical layer signal or an upper layer signal)
- a rule can be defined such that the receiving terminal signals to the terminal or requests the transmitting terminal.
- 16 is a diagram showing a configuration of a transmission point apparatus and a terminal apparatus according to an embodiment of the present invention.
- a transmission point apparatus 10 may include a receiving apparatus 11, a transmitting apparatus 12, a processor 13, a memory 14 and a plurality of antennas 15 .
- the plurality of antennas 15 means a transmission point device supporting MIMO transmission / reception.
- the receiving apparatus 11 can receive various signals, data and information on the uplink from the terminal.
- the transmitting apparatus 12 can transmit various signals, data and information on the downlink to the terminal.
- the processor 13 may control the operation of the transmission point apparatus 10 as a whole.
- the processor 13 of the transmission point apparatus 10 can process the necessary items in each of the above-described embodiments.
- the processor 13 of the transmission point apparatus 10 also performs a function of calculating information received by the transmission point apparatus 10 and information to be transmitted to the outside and the memory 14 stores information Stored for a predetermined time, and replaced by a component such as a buffer (not shown).
- a terminal device 20 may include a receiving device 21, a transmitting device 22, a processor 23, a memory 24, and a plurality of antennas 25 have.
- the plurality of antennas 25 means a terminal device supporting MIMO transmission / reception.
- the receiving apparatus 21 can receive various signals, data and information on the downlink from the base station.
- the transmitting apparatus 22 can transmit various signals, data and information on the uplink to the base station.
- the processor 23 can control the operation of the entire terminal device 20.
- the processor 23 of the terminal device 20 can process the necessary items in each of the above-described embodiments. Specifically, the processor performs sensing during a first time interval on an anchor CC, performs sensing during a second time interval on a non-anchor CC, At the conclusion of the second time interval, the terminal selects a resource to transmit a signal on the anchor CC, and transmits a signal through a resource on the non-anchor CC, associated with the selected resource on the anchor CC and the selected resource on the anchor CC
- the second time period is necessarily included in the first time period, and the ending time of the first time period and the second time period may be the same.
- the processor 23 of the terminal device 20 also functions to process information received by the terminal device 20 and information to be transmitted to the outside and the memory 24 stores the processed information and the like at a predetermined time And may be replaced by a component such as a buffer (not shown).
- the specific configuration of the transmission point device and the terminal device may be implemented such that the items described in the various embodiments of the present invention described above are applied independently or two or more embodiments are applied at the same time, .
- the description of the transmission point device 10 may be applied to a repeater device as a downlink transmission entity or an uplink reception entity, and the description of the terminal device 20 will be omitted in the description of the downlink
- the present invention can be similarly applied to a repeater device as a receiving entity or an uplink transmission entity.
- embodiments of the present invention can be implemented by various means.
- embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof.
- the method according to embodiments of the present invention may be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs) , FPGAs (Field Programmable Gate Arrays), processors, controllers, microcontrollers, microprocessors, and the like.
- ASICs Application Specific Integrated Circuits
- DSPs Digital Signal Processors
- DSPDs Digital Signal Processing Devices
- PLDs Programmable Logic Devices
- FPGAs Field Programmable Gate Arrays
- processors controllers, microcontrollers, microprocessors, and the like.
- the method according to embodiments of the present invention may be implemented in the form of an apparatus, a procedure, or a function for performing the functions or operations described above.
- the software code can be stored in a memory unit and driven by the processor.
- the memory unit may be located inside or outside the processor, and may exchange data with the processor by various well-known means.
Abstract
Description
Claims (14)
- 무선통신시스템에서 단말이 복수의 CC(component carrier) 상에서 자원을 선택하고 신호를 전송하는 방법에 있어서,앵커(anchor) CC 상에서 제1 시간 구간 동안 센싱을 수행하는 단계;논-앵커(non-anchor) CC 상에서 제2 시간 구간 동안 센싱을 수행하는 단계;상기 제1 시간 구간과 상기 제2 시간 구간의 종기에서, 상기 단말이 상기 앵커 CC 상에서 신호를 전송할 자원을 선택하는 단계; 및상기 앵커 CC 상에서 선택된 자원 및 상기 앵커 CC 상에서 선택된 자원으로부터 연계된, 상기 논-앵커 CC 상의 자원을 통해 신호를 전송하는 단계;를 포함하며,상기 제2 시간 구간은 반드시 제1 시간 구간에 포함되며, 상기 제1 시간 구간과 상기 제2 시간 구간의 종기는 동일한, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 앵커 CC 상에서 자원의 선택은, 미리 설정된 시간 이후 상기 신호의 재전송을 위한 자원의 예약을 반드시 포함하는, 복수의 CC 상에서 신호 전송 방법.
- 제2항에 있어서,상기 논-앵커 CC 상에서 자원의 선택은, 미리 설정된 시간 이후 신호의 재전송을 위한 자원의 예약을 선택적으로 포함하는, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 논-앵커 CC 상에서 선택된 자원은, 상기 앵커 CC 상에서 선택된 자원과 시간 및 주파수 인덱스가 동일한, 복수의 CC 상에서 신호 전송 방법.
- 제4항에 있어서,상기 앵커 CC 상에서 전송되는 제어정보는, 논-앵커 CC를 지시하는 정보만 포함하는, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 논-앵커 CC 상에서 선택된 자원은, 상기 앵커 CC 상에서 선택된 자원과 시간 또는 주파수 인덱스 중 하나만 동일한, 복수의 CC 상에서 신호 전송 방법.
- 제6항에 있어서,상기 앵커 CC 상에서 전송되는 제어정보는, 상기 논-앵커 CC 상에서 상기 신호가 전송되는 자원 영역의 시간 영역을 지시하는 정보 또는 상기 논-앵커 CC 상에서 상기 신호가 전송되는 자원 영역의 주파수 영역을 지시하는 정보를 포함하는, 복수의 CC 상에서 신호 전송 방법.
- 제7항에 있어서,상기 시간 영역을 지시하는 정보는, 상기 앵커 CC 상에서 전송되는 제어정보로부터 오프셋 정보인, 복수의 CC 상에서 신호 전송 방법.
- 제7항에 있어서,상기 주파수 영역을 지시하는 정보는, 상기 앵커 CC 상에서 선택된 자원으로부터의 주파수 축 상 오프셋 정보인, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 논-앵커 CC 상에서의 자원 선택은, 상기 앵커 CC 상에서 선택된 자원으로부터 미리 설정된 범위 내의 자원에서만 수행되는, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 앵커 CC는 UE 그룹별로 각각 설정된 것인, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 앵커 CC는 V2X 서비스 별로 각각 설정된 것인, 복수의 CC 상에서 신호 전송 방법.
- 제1항에 있어서,상기 앵커 CC는 네트워크에 의해 지시되는 것 또는 네트워크에 의해 미리 설정된 것인, 복수의 CC 상에서 신호 전송 방법.
- 무선통신시스템에서 복수의 CC(component carrier) 상에서 자원을 선택하고 신호를 전송하는 UE 장치에 있어서,송신 장치 및 수신 장치; 및프로세서를 포함하며,상기 프로세서는, 앵커(anchor) CC 상에서 제1 시간 구간 동안 센싱을 수행하고, 논-앵커(non-anchor) CC 상에서 제2 시간 구간 동안 센싱을 수행하며, 상기 제1 시간 구간과 상기 제2 시간 구간의 종기에서, 상기 단말이 상기 앵커 CC 상에서 신호를 전송할 자원을 선택하고, 상기 앵커 CC 상에서 선택된 자원 및 상기 앵커 CC 상에서 선택된 자원으로부터 연계된, 상기 논-앵커 CC 상의 자원을 통해 신호를 전송하며,상기 제2 시간 구간은 반드시 제1 시간 구간에 포함되며, 상기 제1 시간 구간과 상기 제2 시간 구간의 종기는 동일한, UE 장치.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020207005194A KR102662313B1 (ko) | 2017-07-21 | 2018-07-20 | 무선통신시스템에서 단말이 복수의 cc 상에서 자원을 선택하고 신호를 전송하는 방법 및 장치 |
JP2020502572A JP6930020B2 (ja) | 2017-07-21 | 2018-07-20 | 無線通信システムにおいて端末が複数のcc上でリソースを選択し、信号を送信する方法及び装置 |
EP18835550.7A EP3657873A4 (en) | 2017-07-21 | 2018-07-20 | PROCESS BY WHICH A TERMINAL SELECTS A RESOURCE ON A PLURALITY OF CCS AND TRANSMITS A SIGNAL INTO A WIRELESS COMMUNICATION SYSTEM, AND DEVICE |
CN201880060310.9A CN111096013B (zh) | 2017-07-21 | 2018-07-20 | 终端在无线通信系统中在多个cc上选择资源并发送信号的方法及设备 |
US16/632,806 US11438874B2 (en) | 2017-07-21 | 2018-07-20 | Method by which terminal selects resource on plurality of CCs and transmits signal in wireless communication system, and device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762535291P | 2017-07-21 | 2017-07-21 | |
US62/535,291 | 2017-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019017732A1 true WO2019017732A1 (ko) | 2019-01-24 |
Family
ID=65016496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2018/008234 WO2019017732A1 (ko) | 2017-07-21 | 2018-07-20 | 무선통신시스템에서 단말이 복수의 cc 상에서 자원을 선택하고 신호를 전송하는 방법 및 장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11438874B2 (ko) |
EP (1) | EP3657873A4 (ko) |
JP (1) | JP6930020B2 (ko) |
CN (1) | CN111096013B (ko) |
WO (1) | WO2019017732A1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11902948B1 (en) * | 2018-11-30 | 2024-02-13 | T-Mobile Innovations Llc | Adaptive primary component carrier switching in massive MIMO based on beamforming calibration status |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170156171A1 (en) * | 2013-10-18 | 2017-06-01 | Sony Corporation | Communication control device, communication control method, and terminal device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101785997B1 (ko) | 2009-10-30 | 2017-10-17 | 주식회사 골드피크이노베이션즈 | 무선통신 시스템에서 요소 반송파 집합 정보 전송방법 및 그 기지국, 단말의 수신방법 |
EP3110221B1 (en) * | 2011-03-18 | 2018-05-09 | LG Electronics, Inc. | Method and device for communicating device-to-device |
KR102247085B1 (ko) * | 2014-09-01 | 2021-04-30 | 삼성전자주식회사 | 비인가 주파수 대역을 사용하는 이동통신 시스템에서의 통신 기법 |
US10182419B2 (en) * | 2015-01-29 | 2019-01-15 | Sony Corporation | Telecommunications apparatus and methods |
US20170013469A1 (en) * | 2015-03-17 | 2017-01-12 | Telefonaktiebolaget L M Ericsson (Publ) | Listen-Before-Talk for Multi-Carrier Operation in Unlicensed Spectrum |
US10491345B2 (en) * | 2015-04-08 | 2019-11-26 | Lg Electronics Inc. | Method and device for transmitting and receiving discovery signal in wireless communication system |
EP3295735B1 (en) * | 2015-05-14 | 2020-09-23 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for control information transmission |
EP3335516B1 (en) * | 2015-08-14 | 2021-03-17 | Telefonaktiebolaget LM Ericsson (PUBL) | Listen-before-talk with adaptive post-backoff wait time |
CN108353396A (zh) * | 2015-11-05 | 2018-07-31 | 株式会社Ntt都科摩 | 用户装置、基站、信号发送方法以及资源分配方法 |
WO2018031300A1 (en) * | 2016-08-11 | 2018-02-15 | Intel IP Corporation | Systems and method for selecting carrier resources for narowband physical random access channel procedures |
EP3602944B1 (en) * | 2017-03-24 | 2021-12-08 | Apple Inc. | Carrier aggregation and high order modulation in vehicle-to-vehicle (v2v) sidelink communication |
-
2018
- 2018-07-20 EP EP18835550.7A patent/EP3657873A4/en active Pending
- 2018-07-20 JP JP2020502572A patent/JP6930020B2/ja active Active
- 2018-07-20 WO PCT/KR2018/008234 patent/WO2019017732A1/ko unknown
- 2018-07-20 US US16/632,806 patent/US11438874B2/en active Active
- 2018-07-20 CN CN201880060310.9A patent/CN111096013B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170156171A1 (en) * | 2013-10-18 | 2017-06-01 | Sony Corporation | Communication control device, communication control method, and terminal device |
Non-Patent Citations (4)
Title |
---|
CATT: "Discussion on carrier aggregation in V2X Phase 2", R1-1707447, 3GPP TSG RAN WG1 MEETING #89, 6 May 2017 (2017-05-06), Hangzhou, China, XP051261796 * |
INTEL CORPORATION: "Sidelink carrier aggregation for LTE V2V communication", RI-1707300, 3GPP TSG RAN WG1 MEETING #89, 7 May 2017 (2017-05-07), Hangzhou, P.R. China, XP051262960 * |
PANASONIC: "Discussion on UE behaviour of mode 4 in case of multiple carriers", R1-1708080, 3GPP TSG RAN WG1 MEETING #89, 5 May 2017 (2017-05-05), Hangzhou, P.R. China, XP051261330 * |
ZTE: "Considering CA on PC5 carrier", R1-1707211, 3GPP TSG RAN WG1 MEETING #89, 6 May 2017 (2017-05-06), Hangzhou, P.R. China, XP051261715 * |
Also Published As
Publication number | Publication date |
---|---|
EP3657873A1 (en) | 2020-05-27 |
CN111096013B (zh) | 2023-10-31 |
JP6930020B2 (ja) | 2021-09-01 |
US20210160818A1 (en) | 2021-05-27 |
US11438874B2 (en) | 2022-09-06 |
EP3657873A4 (en) | 2021-03-03 |
CN111096013A (zh) | 2020-05-01 |
JP2020528693A (ja) | 2020-09-24 |
KR20200028480A (ko) | 2020-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018062898A1 (ko) | 무선 통신 시스템에서 자원을 선택하고 pssch를 전송하는 방법 및 장치 | |
WO2018199652A1 (ko) | 무선 통신 시스템에서 wake up 신호를 수신하는 방법 및 장치 | |
WO2018062846A1 (ko) | 무선 통신 시스템에서 자원을 선택하고 pssch를 전송하는 방법 및 장치 | |
WO2016159715A2 (ko) | 무선 통신 시스템에서 v2x 단말이 신호를 송수신 하는 방법 및 장치 | |
WO2017048101A1 (ko) | 무선 통신 시스템에서 v2x 단말의 메시지 송수신 방법 및 장치 | |
WO2017196129A1 (ko) | 무선 통신 시스템에서 ue의 사이드링크 신호 송수신 방법 | |
WO2016171495A1 (ko) | 무선 통신 시스템에서 장치 대 장치 통신 단말의 릴레이 선택 및 신호 송수신 방법 및 장치 | |
WO2019031952A1 (ko) | 무선통신시스템에서 v2x 단말이 pscch 스케쥴링 정보를 수신하고 pscch를 전송하는 방법 및 장치 | |
WO2016163848A1 (ko) | 무선 통신 시스템에서 우선순위를 고려하여 d2d 신호를 송수신 하는 방법 및 장치 | |
WO2017048099A1 (ko) | 무선 통신 시스템에서 v2x 단말의 메시지 송수신 방법 및 장치 | |
WO2018174684A1 (ko) | 무선 통신 시스템에서 사이드링크 신호를 전송하는 방법 및 장치 | |
WO2016163814A1 (ko) | 무선 통신 시스템에서 다수의 d2d 신호를 송수신 하는 방법 및 장치 | |
WO2018143725A1 (ko) | 무선 통신 시스템에서 단말이 cr을 측정하고 전송을 수행하는 방법 및 장치 | |
WO2017138802A1 (ko) | 무선 통신 시스템에서 수신확인응답 전송 방법 및 장치 | |
WO2018084570A1 (ko) | 무선 통신 시스템에서 오프셋을 적용한 d2d 신호 전송 방법 및 장치 | |
WO2017095095A1 (ko) | 무선 통신 시스템에서 장치 대 장치 통신 단말의 qcl과 관련된 신호 송수신 방법 및 장치 | |
WO2017034265A1 (ko) | 무선 통신 시스템에서 v2x 단말의 신호 송수신 방법 및 장치 | |
WO2018131927A1 (ko) | 무선 통신 시스템에서 카운터 정보에 기초한 릴레이 통신을 수행하는 방법 및 장치 | |
WO2018030788A1 (ko) | 무선 통신 시스템에서 단말의 사이드링크 신호 송수신 방법 | |
WO2017111466A1 (ko) | 무선 통신 시스템에서 참조신호와 데이터를 생성하고 전송하는 방법 및 장치 | |
WO2018021784A1 (ko) | 무선 통신 시스템에서 플래툰 통신에 관련된 신호 송수신 방법 | |
WO2018038496A1 (ko) | 무선 통신 시스템에서 단말의 측정을 통한 자원 선택 및 데이터 전송 방법 및 장치 | |
WO2018131933A1 (ko) | 무선 통신 시스템에서 혼잡 제어와 관련된 sa와 데이터 전송 방법 및 장치 | |
WO2019066576A1 (ko) | 무선통신시스템에서 단말이 복수의 구성 반송파 상에서 동기 신호를 송수신하는 방법 및 장치 | |
WO2017111565A1 (ko) | 무선 통신 시스템에서 v2x 단말의 데이터 송신 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18835550 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020502572 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20207005194 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2018835550 Country of ref document: EP Effective date: 20200221 |