WO2014148861A2 - 방송채널 방법, 방송채널신호 송수신 방법 및 이를 지원하는 장치 - Google Patents
방송채널 방법, 방송채널신호 송수신 방법 및 이를 지원하는 장치 Download PDFInfo
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- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- 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
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- 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
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- 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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Definitions
- Broadcast channel method broadcast channel signal transmission / reception method and apparatus supporting the same
- the present invention relates to a wireless access system and a method for allocating a new broadcast channel and a method for allocating a new common control channel region.
- the present invention also relates to a method for transmitting and receiving a broadcast channel signal and / or a control channel signal and an apparatus supporting the same.
- Wireless access systems are widely deployed to provide various kinds of communication services such as voice and data.
- a wireless access 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 code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (0FDMA) systems, and single carrier frequency division (SC_FDMA). multiple access) systems.
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- SC_FDMA single carrier frequency division
- An object of the present invention is to provide a method for configuring a new broadcast channel and a control channel.
- Another object of the present invention is to provide a method for configuring a new broadcast channel and a control channel in a physical downlink shared channel region in a small cell environment using an ultra high frequency band.
- Another object of the present invention is to provide a method for allocating a broadcast channel and a control channel to reduce intercell interference.
- Another object of the present invention is to provide a method in which a terminal can easily obtain such a broadcast channel and / or a control channel region.
- Another object of the present invention is to provide an apparatus supporting these methods.
- the technical objects to be achieved in the present invention are not limited to the above-mentioned matters, and other technical problems not mentioned above are common in the art to which the present invention belongs from the embodiments of the present invention described below. It can be considered by those who have knowledge.
- the present invention provides a method for allocating a new broadcast channel and a method for allocating a new common control channel region in a wireless access system.
- the present invention also provides a method for transmitting and receiving a broadcast channel signal and / or a control channel signal, and apparatuses supporting the same.
- a method of receiving a physical broadcast channel (PBCH) signal in a wireless access system comprising: receiving synchronization signals, acquiring a physical cell identifier (PCID) based on the synchronization signals, and a PCID; Computing a subcarrier index indicating a PBCH region based on the step of performing a blind decoding from the subcarrier represented by the subcarrier index in the subframe to detect the PBCH region and receiving a PBCH signal broadcasted through the PBCH region It may include a step.
- PCID physical cell identifier
- the terminal may include a receiver and a processor for detecting a PBCH signal.
- the processor controls the receiver to receive the synchronization signals; Obtain a physical cell identifier (PCID) based on the synchronization signals; Calculating a subcarrier index indicating the PBCH region based on the PCID; Performing blind decoding from the subcarrier indicated by the subcarrier index in the subframe to detect the PBCH region;
- the receiver receives the PBCH signal that is broadcast through the PBCH region. Control to receive.
- PCID physical cell identifier
- the subcarrier index may be calculated using the PCID, the number of downlink resource blocks allocated to the subframe, and the number of subcarriers included in the downlink resource block.
- the PBCH region may be allocated to a predetermined OFDM symbol from the first orthogonal frequency division multiplexing (OFDM) symbol of the subframe.
- OFDM orthogonal frequency division multiplexing
- a method of broadcasting a physical broadcast channel (PBCH) signal in a base station of a wireless access system includes: broadcasting synchronization signals and subframes based on a physical cell identifier (PCID) of the base station. Allocating the PBCH region and broadcasting the PBCH signal through the PBCH region in the subframe.
- PCID physical cell identifier
- a base station for broadcasting a physical broadcast channel (PBCH) signal in a base station of a wireless access system may include a transmitter and a processor for allocating a PBCH and broadcasting a PBCH signal. Controls the transmitter to broadcast the synchronization signals; Assign a PBCH region to a subframe based on a physical cell identifier (PCID) of the base station; The subframe may be configured to broadcast a PBCH signal by controlling the transmitter through the PBCH region.
- PCID physical cell identifier
- the PBCH region may be allocated based on the PCID, the number of downlink resource blocks allocated to the subframe, and the number of subcarriers included in the downlink resource block.
- the PBCH region may be allocated to a predetermined OFDM symbol from the first orthogonal frequency division multiplexing (OFDM) symbol of the subframe.
- OFDM orthogonal frequency division multiplexing
- the PBCH region may be allocated in a distributed form on the frequency axis in a subframe.
- one or more broadcast signals may be transmitted together with the synchronization signal.
- a method of configuring a new broadcast channel and a new method of broadcasting a broadcast channel signal can be provided.
- PCID physical cell identifier
- the terminal can easily detect such a broadcast channel and / or control channel region using a PCID.
- FIG. 1 is a diagram for explaining physical channels that can be used in embodiments of the present invention and a signal transmission method using the same.
- FIG. 2 illustrates a structure of a radio frame used in embodiments of the present invention.
- FIG. 3 is a diagram illustrating a resource grid for a downlink slot that can be used in embodiments of the present invention.
- FIG. 4 shows a structure of an uplink subframe that can be used in embodiments of the present invention.
- FIG. 5 shows a structure of a downlink subframe that can be used in embodiments of the present invention.
- FIG. 6 shows a subframe structure of an LTE-A system according to cross carrier scheduling used in embodiments of the present invention.
- FIG. 7 illustrates an example of an initial access procedure used in an LTE / LTE-A system.
- FIG. 8 is a diagram illustrating one method of transmitting a broadcast channel signal.
- FIG. 9 illustrates frame structures to which a control channel and / or a broadcast channel are allocated.
- FIG. 10 is a diagram illustrating a subframe to which a PBCH or the like is allocated in one frame structure.
- FIG. 11 is a diagram illustrating one method of transmitting a PBCH signal.
- FIG. 12 is a diagram illustrating an example of a PBCH detection method.
- FIGS. 1 to 12 are means in which the methods described with reference to FIGS. 1 to 12 may be implemented.
- Embodiments of the present invention described in detail below provide methods for allocating a new broadcast channel and methods for allocating a new common control channel region.
- the present invention also provides a method for transmitting and receiving a broadcast channel signal and / or a control channel signal, and apparatuses supporting the same.
- each component or feature may be considered to be optional unless otherwise stated.
- Each component or feature may be embodied in a form not combined with other components or features.
- some components 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 components or features of one embodiment may be included in another embodiment or may be replaced with corresponding components or features of another embodiment.
- various operations performed for communication with a mobile station in a network consisting of a plurality of network nodes including a base station may be performed by the base station or other network nodes other than the base station.
- the 'base station' may be replaced by terms such as a fixed station, a Node B, an eNode B (eNB), an advanced base station (ABS), or an access point.
- a terminal may be a user equipment (UE), a mobile station (MS), a subscriber station (SS), or a mobile subscriber station (MSS) It may be replaced with terms such as Subscriber Station, Mobile Terminal, or Advanced Mobile Station (AMS).
- UE user equipment
- MS mobile station
- SS subscriber station
- MSS mobile subscriber station
- AMS Advanced Mobile Station
- the transmitting end refers to a fixed and / or mobile node that provides a data service or a voice service
- the receiving end refers to a fixed and / or mobile node that receives a data service or a voice service. Therefore, in uplink, a mobile station may be a transmitting end and a base station may be a receiving end. Similarly, in downlink, a mobile station may be a receiving end and a base station may be a transmitting end.
- Embodiments of the present invention may be supported by standard documents disclosed in at least one of the IEEE 802.11 system, the 3rd Generation Partnership Project (3GPP) system, the 3GPP LTE system, and the 3GPP2 system, which are wireless access systems.
- Embodiments of the present invention may be supported by 3GPP TS 36.211, 3GPP TS 36.212, 3GPP TS 36.213 and 3GPP TS 36.321 documents. That is, among the embodiments of the present invention Obvious steps or portions not described may be described with reference to the above documents.
- all terms disclosed in the present document can be described by the above standard document.
- the term 'synchronization signal' used in the embodiments of the present invention may be used in the same meaning as a term such as a synchronization sequence, a training symbol, or a synchronization preamble.
- FDMA division multiple access
- TDMA frequency division multiple access
- FDMA orthogonal frequency division multiple access
- SC-FDMA single carrier frequency division multiple access
- CDMA may be implemented by a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
- TDMA may be implemented in a wireless technology such as Global System for Mobile Communication (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE).
- GSM Global System for Mobile Communication
- GPRS General Packet Radio Service
- EDGE Enhanced Data Rates for GSM Evolution
- 0FDMA may be implemented in a wireless technology such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, Evolved UTRA (E-UTRA), and the like.
- UTRA is a part of Universal Mobile Telecommunications System (UMTS).
- 3GPP Long Term Evolution (LTE) is an implementation of E— UMTS (Evolved UMTS) using EHJTRA.
- 0FDMA is adopted in downlink
- SC-FDMA is adopted in uplink.
- the LTE-A (Advanced) system is an improved system of the 3GPP LTE system.
- embodiments of the present invention are described mainly for 3GPP LTE / LTE-A system, but may be applied to IEEE 802.16e / m system and the like.
- a terminal receives information from a base station through downlink (DL) and transmits information to a base station through uplink (UL).
- the information transmitted and received by the base station and the terminal includes general data information and various control information, and various physical channels exist according to the type / use of the information they transmit and receive.
- FIG. 1 is a diagram for explaining physical channels that can be used in embodiments of the present invention and a signal transmission method using the same.
- the terminal In the state in which the power is turned off, the terminal is turned on again or enters a new cell, and performs an initial cell search operation such as synchronizing with the base station in step S11.
- the UE receives a primary synchronization channel (P-SCH) and a floating channel (S—SCH) from the base station, synchronizes with the base station, and obtains information such as a cell ID.
- P-SCH primary synchronization channel
- S—SCH floating channel
- the terminal may receive a physical broadcast channel (PBCH) signal from the base station to acquire broadcast information in a cell.
- PBCH physical broadcast channel
- the terminal may receive a downlink reference signal (DL RS) to check the downlink channel state.
- DL RS downlink reference signal
- the UE receives a physical downlink control channel (PDCCH) and a physical downlink control channel (PDSCH) according to physical downlink control channel information in step S12. By doing so, more specific system information can be obtained.
- PDCCH physical downlink control channel
- PDSCH physical downlink control channel
- the terminal may perform a random access procedure, such as step S13 to step S16, to complete the access to the base station.
- the UE transmits a preamble through a physical random access channel (PRACH) (S13), a response message to the preamble through a physical downlink control channel and a physical downlink shared channel. Can be received (S14).
- PRACH physical random access channel
- the UE performs contention resolution such as transmitting an additional physical random access channel signal (S15) and receiving a physical downlink control channel signal and a physical downlink shared channel signal (S16). Procedure).
- the UE may receive a physical downlink control channel signal and / or a physical downlink shared channel signal as a general uplink / downlink signal transmission procedure (S17) and a physical uplink shared channel ( A PUSCH (physical uplink shared channel) signal and / or a physical uplink control channel (PUCCH) signal may be transmitted (S18).
- S17 general uplink / downlink signal transmission procedure
- a PUSCH (physical uplink shared channel) signal and / or a physical uplink control channel (PUCCH) signal may be transmitted (S18).
- UCI uplink control information
- HARQ—ACK / NACK Hybrid Automatic Repeat and reQuest Acknowl edgement / Negat i ve-ACK
- SR Switching Request
- CQI Channel Quality Indication
- PMI Precoding Matrix Indication
- RI Rank Indication
- UCI is generally transmitted periodically through PUCCH, but when control information and traffic data should be transmitted at the same time, it can be transmitted through PUSCH. have.
- the UCI can be aperiodically transmitted through the PUSCH according to a network request / instruction.
- FIG. 2 shows a structure of a radio frame used in embodiments of the present invention.
- FIG. 2 (a) shows a frame structure type 1.
- the type 1 frame structure can be applied to both full duplex Frequency Division Duplex (FDD) systems and half duplex FDD systems.
- FDD Frequency Division Duplex
- One subframe is defined as two consecutive slots, and the i th subframe consists of slots corresponding to 2i and 2i + l. That is, a radio frame is composed of 10 subframes.
- the time taken to transmit one subframe is called a transmission time interval (TTI).
- the slot includes a plurality of 0FDM symbols or SOFDMA symbols in the time domain and includes a plurality of resource blocks in the frequency domain.
- One slot includes a plurality of orthogonal frequency division multiplexing (0FDM) symbols in the time domain. Since 3GPP LTE uses 0FDMA in downlink, the 0FDM symbol is intended to represent one symbol period. The 0FDM symbol may be referred to as one SC— FDMA symbol or a symbol period.
- a resource block is a resource allocation unit and includes a plurality of consecutive subcarriers in one slot.
- 10 subframes may be used simultaneously for downlink transmission and uplink transmission during each 10 ms period. At this time, uplink and downlink transmission are separated in the frequency domain.
- the terminal cannot transmit and receive at the same time.
- the structure of the radio frame described above is just one example, and the number of subframes included in the radio frame, the number of slots included in the subframe, and the number of OFDM symbols included in the slot may vary. have.
- Type 2 frame structure is applied to the TDD system.
- a type 2 frame includes a special subframe consisting of three fields: a downlink pilot time slot (DwPTS), a guard period (GP), and an upink pilot time slot (UpPTS).
- DwPTS downlink pilot time slot
- GP guard period
- UpPTS upink pilot time slot
- the DwPTS is used for initial cell search, synchronization or channel estimation in the terminal.
- UpPTS is used for channel estimation at the base station and synchronization of uplink transmission of the terminal.
- the guard period is a period for removing interference generated in the uplink due to the multipath delay of the downlink signal between the uplink and the downlink.
- Table 1 shows the structure of a special frame (length of DwPTS / GP / UpPTS).
- FIG. 3 is a diagram illustrating a resource grid for a downlink slot that may be used in embodiments of the present invention.
- one downlink slot includes a plurality of 0FDM symbols in the time domain.
- one downlink slot includes seven 0FDM symbols and one resource block includes 12 subcarriers in the frequency domain, but it is not limited thereto.
- Each element on the resource grid is a resource element, and one resource block includes 12 ⁇ 7 resource elements.
- the number NDL 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.
- an uplink subframe may be divided into a control region and a data region in the frequency domain.
- the control region carries uplink control information.
- PUCCH is assigned.
- the data area is allocated with a PUSCH carrying user data.
- one UE does not simultaneously transmit a PUCCH and a PUSCH.
- the PUCCH for one UE is allocated an RB pair in a subframe. RBs belonging to an RB pair have different portions in each of the two slots. Occupies a carrier. This RB pair allocated to the PUCCH is said to be frequency hopping at the slot boundary (slot boundary).
- FIG. 5 shows a structure of a downlink subframe that can be used in embodiments of the present invention.
- up to three OFDM symbols from the OFDM symbol index 0 are control regions to which control channels are allocated, and the remaining OFDM symbols are data regions to which the PDSCH is allocated. data region).
- Examples of downlink control channels used in 3GPP LTE include PCCICH (Physicai Control Format Indicator Channel), PDCCH, and PHHY (Physical Hybrid-ARQ Indicator Channel).
- the PCFICH is transmitted in the first OFDM symbol of a subframe and carries information about the number of OFDM symbols (ie, the size of a control region) used for transmission of control channels in the subframe.
- the PHICH is a response channel for the uplink and carries an Acknowledgement (ACR) / Negative-Acknowledgement (NACK) signal for a hybrid automatic repeat request (HARQ).
- Control information transmitted through the PDCCH is called downlink control information (DCI).
- the downlink control information includes uplink resource allocation information, downlink resource allocation information, or an uplink transmission (Tx) power control command for a certain terminal group.
- 3GPP LTE (3rd Generation Partnership Project Long Term Evolution (Rel-8 or Rel-9) system (hereinafter referred to as LTE system) is a multi-carrier using a single component carrier (CC) by dividing it into multiple bands.
- MCM Multi-carrier modulation
- 3GPP LTE-Advanced systems eg, Rel-10 or Rel-n; Hereinafter, the LTE-A system may use a method such as carrier aggregation (CA), which combines one or more component carriers to support a wider system bandwidth than the LTE system.
- CA carrier aggregation
- Carrier Aggregation can be replaced by the terms carrier aggregation, carrier matching, multi-component carrier environment (MuUi-CC), or multicarrier environment.
- the multi-carrier means the aggregation of carriers (or carrier aggregation), wherein the aggregation of carriers means not only merging between contiguous carriers but also merging between non-contiguous carriers.
- the number of component carriers aggregated between downlink and uplink may be set differently.
- 'DL CC' the number of downlink component carriers
- 'UL CC' the number of uplink component carriers
- carrier aggregation may be commonly used with terms such as carrier aggregation, bandwidth aggregation, spectrum aggregation, and the like.
- carrier aggregation in which two or more component carriers are combined, aims to support up to 100 MHz bandwidth.
- the bandwidth of the combining carrier may be limited to the bandwidth used by the existing system in order to maintain backward compatibility with the existing IMT system.
- the existing 3GPP LTE system supports the ⁇ 1.4, 3, 5, 10, 15, 20 ⁇ MHz bandwidth
- the 3GPP LTE-advanced system ie, LTE-A
- the carrier aggregation system used in the present invention may support carrier aggregation by defining a new bandwidth regardless of the bandwidth used in the existing system.
- the carrier aggregation may be classified into an intra-band CA and an inter-band CAGnter band CA.
- Intra-band carrier aggregation means that a plurality of DL CCs and / or UL CCs are located adjacent to or adjacent in frequency.
- the carrier frequencies of DL CCs and / or UL CCs are located in the same band. can do.
- an environment far from the frequency domain may be called an inter-band CA.
- the terminal may use a plurality of RF radio frequency) stages to perform communication in a carrier aggregation environment.
- the LTE-A system uses the concept of a cell to manage radio resources.
- the aforementioned carrier aggregation environment may be referred to as a multiple cells environment.
- a cell is defined as a combination of a downlink resource (DL CC) and an uplink resource (UL CC), but the uplink resource is not an essential element. Therefore, the sal may be configured with only downlink resources, or with downlink resources and uplink resources.
- a particular terminal is only one set serving Sal case having an (configured serving 'cell) 1 DL, but may have a CC and one UL CC, the particular terminal having two or more set the serving cell
- as many DL CCs as the number of cells and the number of UL CCs may be equal to or less than.
- DL CC and UL CC may be configured. That is, when a specific UE has a plurality of configured serving cells, a carrier aggregation environment in which more UL CCs are supported than the number of DL CCs may be supported.
- carrier merge may be understood as a merge of two or more cells, each having a different carrier frequency (center frequency of the cell).
- 'cell 1 ' must be distinguished from a 'cell' as a geographical area covered by a commonly used base station.
- intra-band multi-sal the above-described intra-band carrier merging is referred to as intra-band multi-sal
- inter-band carrier merging is referred to as inter-band multi-sal.
- a cell used in the LTE-A system includes a primary cell (PCell) and a secondary cell (SCell). P cell and S cell may be used as a serving cell.
- PCell primary cell
- SCell secondary cell
- P cell and S cell may be used as a serving cell.
- the UE In the case of the UE that is in the RC_C0NNECTED state, but carrier aggregation is not configured or does not support carrier aggregation, there is only one serving cell consisting of P cells. On the other hand, in case of a UE in RRC_C0NNECTED state and carrier aggregation is configured, one or more serving cells may exist, and the entire serving cell includes a P cell and one or more S cells.
- the serving cells may be configured through RRC parameters.
- PhysCellld is the cell's physical layer identifier and has an integer value from 0 to 503.
- SCell Index is a short identifier used to identify S cell and has an integer value from 1 to 7.
- the ServCell Index is a short identifier used to identify a serving cell (P cell or S cell) and has an integer value from 0 to 7. A value of 0 is applied to the P cell, and SCelllndex is pre-assigned to apply to the S cell. That is, a cell having the smallest cell ID (or cell index) in the ServCell Index becomes a P cell.
- a P cell refers to a cell operating on a primary frequency (or a primary CO.
- the UE may be used to perform an initial connection establishment process or to perform a connection re-configuration process.
- a P cell refers to a cell which is the center of control-related communication among serving cells configured in a carrier aggregation environment, that is, a UE allocates and transmits a PUCCH only in its own P cell.
- An S cell may mean a cell operating on a secondary frequency (or a secondary CO. Only one P cell may be allocated to a specific UE and one or more S cells may be allocated. After this is done, it can be used to provide configurable and additional radio resources PUCCH does not exist in the remaining cells excluding the Pcell, that is, the Scell, among serving cells configured in the carrier aggregation environment.
- the E-UTRAN adds the S cell to the UE supporting the carrier aggregation environment, all system information related to the operation of the associated cell in the RRC—CONNECTED state may be provided through a specific signal. .
- the change of the system information can be controlled by the release and addition of the related S cells, and at this time, an RRC connection reconfigutaion message of a higher layer can be used.
- the E-UTRAN may perform dedicated signaling having different parameters for each terminal, rather than broadcasting in the related S cell.
- the E-UTRAN may configure a network including one or more scells in addition to the Pcell initially configured in the connection establishment process.
- the P cell and the S cell may operate as respective component carriers.
- the primary component carrier (PCC) may be used in the same sense as the P cell
- the secondary component carrier (SCC) may be used in the same meaning as the S cell.
- a self-scheduling method there are two types of a self-scheduling method and a cross carrier scheduling method in terms of scheduling of a carrier (or carrier) or a serving cell.
- Cross carrier scheduling may be referred to as Cross Component Carrier Scheduling or Cross Cell Scheduling.
- Self-scheduling is performed through a UL CC in which a PDCCH and a DLSCH are transmitted in the same DL CC, or a PUSCH transmitted according to a PDCCHOJL Grant transmitted in a DL CC is linked to a DL CC in which an UL Grant is received. Means to be transmitted.
- PDCCH DL Grant
- PDCQKUL Grant PDCQKUL Grant
- cross carrier scheduling may be activated or deactivated UE-specifically and may be semi-statically known to each UE through higher layer signaling (eg, RRC signaling). .
- a carrier indicator field (CIF: Carrier Indicator Field) indicating a PDSCH / PUSCH indicated by the corresponding PDCCH is transmitted to the PDCCH.
- the PDCCH may allocate PDSCH resources or PUSCH resources to one of a plurality of component carriers using CIF. That is, when the PDCCH on the DL CC allocates PDSCH or PUSCH resources to one of the multi-aggregated DL / UL CC, CIF is set.
- the DCI format of LTE Release-8 may be extended according to CIF.
- the configured CIF may be fixed as a 3 bit field or the position of the configured CIF may be fixed regardless of the DCI format size.
- the PDCCH structure (same coding and resource mapping based on the same CCE) of LTE Release-8 may be reused.
- CIF is not configured when the PDCCH on the DL CC allocates PDSCH resources on the same DL CC or PUSCH resources on a single linked UL CC.
- the same PDCCH structure (same coding and same CCE-based resource mapping) DCI format as LTE Release-8 may be used.
- the UE When cross-carrier scheduling is possible, the UE provides PDCCHs for a plurality of DCIs in a control region of the monitoring CC according to a transmission mode and / or bandwidth for each CC. It is necessary to monitor. Therefore, the structure of search space that can support this
- the terminal DL CC set represents a set of DL CCs scheduled for the terminal to receive a PDSCH
- the terminal UL CC set represents a set of UL CCs scheduled for the UE to transmit a PUSCH.
- the PDCCH monitoring set represents a set of at least one DL CC that performs PDCCH monitoring.
- the PDCCH monitoring set may be the same as the UE DL CC set or may be a subset of the UE DL CC set.
- the PDCCH monitoring set may include at least one of DL CCs in the terminal DL CC set. Alternatively, the PDCCH monitoring set may be defined separately regardless of the UE DL CC set.
- the DL CC included in the PDCCH monitoring set may be configured to always enable self-scheduling for the linked UL CC.
- the UE DL CC set, the UE UL CC set, and the PDCCH monitoring set may be configured UE-specifically, UE group-specifically, or cell-specifically.
- the PDCCH monitoring set When cross carrier scheduling is deactivated, it means that the PDCCH monitoring set is always the same as the UE DL CC set. In this case, an indication such as separate signaling for the PDCCH monitoring set is not necessary.
- the PDCCH monitoring set when cross-carrier scheduling is activated, is preferably defined in the terminal DL CC set. That is, in order to schedule PDSCH or PUSCH for the UE, the base station transmits the PDCCH through only the PDCCH monitoring set.
- FIG. 6 illustrates a subframe structure of an LTE-A system according to cross carrier scheduling used in embodiments of the present invention.
- DL CCs three DL component carriers (DL CCs) are combined in a DL subframe for an LTE-A terminal, and DL CC 'A' represents a case in which a PDCCH monitoring DL CC is configured. If CIF is not used, each DL CC is without CIF. A PDCCH for scheduling its PDSCH may be transmitted. On the other hand, when the CIF is used through higher layer signaling, only one DL CC 'A' may transmit a PDCCH for scheduling its PDSCH or PDSCH of another CC using the CIF. At this time, the DL CCs ' ⁇ * and X' which are not set as the PDCCH monitoring DL CC do not transmit the PDCCH.
- DL CCs ' ⁇ * and X' which are not set as the PDCCH monitoring DL CC do not transmit the PDCCH.
- the initial access process may include a cell discovery process, a system information acquisition process, and a random access procedure.
- FIG. 7 is a diagram illustrating an example of an initial access procedure used in an LTE / LTE-A system.
- the UE may acquire downlink synchronization information by receiving synchronization signals (for example, primary synchronization signal (PSS) and secondary synchronization signal (SSS)) transmitted from the base station.
- synchronization signals for example, primary synchronization signal (PSS) and secondary synchronization signal (SSS)
- PSS primary synchronization signal
- SSS secondary synchronization signal
- the synchronization signals are transmitted twice every frame (10 ms units). That is, the synchronization signals are transmitted every 5ms (S710).
- the downlink synchronization information acquired in step S710 may include a physical cell identifier (PCID), downlink time and frequency synchronization and cyclic prefix (CP) length information.
- PCID physical cell identifier
- CP cyclic prefix
- the UE receives a PBCH signal transmitted through a physical broadcast channel (PBCH).
- PBCH physical broadcast channel
- the PBCH signal is repeatedly transmitted four times in different scrambling sequences for four frames (ie, 40 ms) (S720).
- the PBCH signal includes a master information block (MIB) as one of system information.
- MIB master information block
- One MIB has a total size of 24 bits, 14 bits of which are physical HARQ indication channel (PHICH) configuration information, downlink cell bandwidth (dl-bandwiclth) information, and system. Used to indicate a frame number (SFN). The remaining 10 bits consist of extra bits.
- PHICH physical HARQ indication channel
- dl-bandwiclth downlink cell bandwidth
- SFN frame number
- the terminal may acquire the remaining system information by receiving different system information blocks (SIBs) transmitted from the base station.
- SIBs are transmitted on the DL-SCH, and the presence of the SIB is confirmed as a PDCCH signal masked by SI-R TK System Information Radio Network Temporary Identities (S730).
- the system information block type l (SIBl) among the SIBs includes parameters necessary for determining whether a corresponding cell is a cell suitable for cell selection and information on time-axis scheduling for other SIBs.
- the system information block type 2 (SIB2) includes shared channel information and shared channel information.
- SIB3 to SIB8 include information about cell reselection, inter-frequency, intra-frequency, and the like.
- SIB9 is used to convey the name of the Home Base Station (HeNB), and SIB10-SIB12 is the Earthquake and Tsunami Warning Service (EWS) Notification and Disaster Warning System (CMAS). System) includes a warning message.
- SIB13 includes MBMS related control information.
- the terminal may perform a random access procedure when performing steps S710 to S730.
- the UE may acquire parameters for transmitting a Physical Random Access Channel (PRACH) signal. Therefore, the terminal may perform a random access procedure with the base station by generating and transmitting a PRACH signal using the parameters included in the SIB2 (S740).
- PRACH Physical Random Access Channel
- PBCH Physical Broadcast Channel
- PBCH is used for MIB transmission.
- Bit block (0), ..., w b ,,-i)) is scrambled with a cell-specific sequence before modulation to yield a scrambled bit block ((0), ..., (—1)) do.
- ⁇ denotes the number of bits transmitted on the PBCH, 1920 bits for a normal cyclic prefix, and 1728 bits for an extended cyclic prefix.
- Equation 1 shows one of methods for scrambling a bit block.
- Equation 1 c (/) scrambling sequence is represented.
- the block of scrambled bits (0), ..., ( ⁇ -1) is modulated to produce complex-value modulation symbol blocks (M. symb -l).
- the modulation scheme applicable to the physical broadcast channel is QPSKCQuadrature Phase Shift Keying).
- Resource elements for reference signals are excluded from the mapping.
- the mapping operation assumes that there are cell specific reference signals for antenna ports 0-3 regardless of the actual configuration.
- the UE assumes that reference signals are reserved, but resource elements that are not used for transmission of the reference signal are not available for PDSCH transmission. The terminal makes no other assumptions about these resource elements.
- the MIB is system information transmitted through the PBCH. That is, the MIB includes system information transmitted through the BCH.
- the signaling radio bearer is not applied to the MIB, the RLOSA Radio Link Control-Service Access Point is TMCTransparent Mode, the logical channel is a Broadcast Control Channel (BCCH), and is transmitted from the E—UTRAN to the UE.
- BCCH Broadcast Control Channel
- the MIB includes a downlink bandwidth (cU) bandwidth parameter, a PHICH configuration parameter, a system frame number parameter, and an extra bit.
- cU downlink bandwidth
- the downlink bandwidth parameter represents 16 different transmission bandwidth configurations (N RB ). For example, n6 is treated at 6 resource blocks and nl5 is treated at 15 resource blocks.
- the PHICH configuration parameter is set on the PDCCH needed to receive the DL—SCH. Represents a PHICH setting necessary for receiving a control signal.
- the system frame number (SFN) parameter defines the most significant eight bits of the SFN. At this time, the least significant 2 bits of the SFN are obtained indirectly through decoding of the PBCH. For example, the 40 ms timing of the PBCH TTI may indicate LSB 2 bits. This will be described in detail with reference to FIG. 8.
- FIG. 8 is a diagram illustrating one method of transmitting a broadcast channel signal.
- the MIB transmitted through the BCCH which is a logical channel, is transmitted through the BCH, which is a transport channel.
- the MIB is mapped to the transport block, the CRC is added to the MIB transport block, and is transmitted to the physical channel PBCH through channel coding and rate matching.
- the MIB is mapped to the resource element (RE) through a scrambling, modulation, layer mapping, and precoding process. That is, the same PBCH signal is scrambled with different scrambling sequences for 40 ms period (ie 4 frames) and then transmitted.
- the UE may detect one PBCH for 40 ms through blind decoding, and may estimate the remaining 2 bits of the SFN through this.
- the LSB of the SFN is set to '00', and if the PBCH signal is transmitted in the second radio frame, the LSB is set to '01'.
- the LSB may be set to '10' when transmitted in the third radio frame, and the LSB may mean '11' when transmitted in the last radio frame.
- the PBCH may be allocated to 72 subcarriers in the middle of the first four OFDM symbols of the second slot (slot # 1) of the first subframe (subframe # 0) of each frame.
- the subcarrier region to which the PBCH is allocated is always 72 subcarrier regions in the middle regardless of the cell bandwidth. This is to enable the UE to detect the PBCH even if the UE does not know the size of the downlink cell bandwidth.
- a primary synchronization channel (PSC) on which a primary synchronization signal (PSS) is transmitted has a TTI of 5 ms and subframe # 0 in each frame. And the last symbol of the first slot of slot # 5 (slot # 0).
- the Secondary Synchronization Channel (SSC) to which the secondary synchronization signal (SSS) is transmitted has a TTI of 5 ms and is allocated to the second symbol (ie, the symbol immediately before the PSS) at the end of the same slot.
- the PSC and the SSC always occupy the middle 72 subcarriers regardless of the sal bandwidth, and are allocated to the 62 subcarriers.
- the path loss is larger than that of the conventional celller band. Therefore, in the ultra-high frequency wireless communication environment, the cell ' coverage is smaller than that of the existing cell system. Therefore, in a small cell environment using an ultra high frequency band, the SNR of a signal received by the UE may have a relatively large value. This may require relatively small robustness when the base station transmits the PBCH.
- the PBCH region is always assigned to a fixed frequency position.
- this is a disadvantage that can act as interference between adjacent cells.
- the SIB is transmitted in the PDSCH, but SIB1 including scheduling information for the SIB2 SIB13 is limited in the time domain because it is transmitted in the fifth subframe of every frame in the time domain.
- a common search space (CSS: Common) is used for DL grant transmission of PDSCH used for paging, SIB, and random access response (RAR) transmission.
- the PDCCH signal is transmitted through the search space.
- a PDCCH signal is transmitted through CSS for uplink power control message transmission.
- an e-PDCCH for transmitting a PDCCH through a PDSCH, which is a data channel, has been discussed.
- UE specific search A technique for transmitting not only a space (USS: UE-specific search space) but also a PDCCH signal transmitted through CSS through an e-PDCCH has been discussed. Accordingly, the UE may perform blind decoding (BD) in order to decode the control channel signal transmitted to the PDSCH region.
- BD blind decoding
- PBCH or control channel allocation and control signal transmission can avoid interference between cells, and provide methods for configuring the data channel area to be compatible.
- Embodiments of the present invention relate to the e—PDCCH transmission scheme in which both CSS and USS are allocated to the PDSCH region, rather than the conventional TDM scheme.
- FIG. 9 illustrates frame structures to which a control channel and / or a broadcast channel are allocated.
- FIG. 9 (a) is a diagram illustrating one of subframe structures in which a common control channel is assigned to a PDSCH region. That is, FIG. 9A shows a subframe structure when a common search space (CSS) is allocated to a data channel.
- SCS common search space
- 9 (b) shows a subframe structure when a PBCH region is allocated to n OFDM symbols from the beginning of a frequency region within a corresponding subframe in the CSS.
- a PDSCH for allocating a common control channel to a predetermined frequency region in a subframe may be allocated, and a PBCH region may be allocated from the first OFDM symbol to the nth OFDM symbol of the PDSCH.
- the common control channel means a control channel transmitted through CSS.
- the control channel transmitted to the USS may also be set in the common control channel.
- 9 (c) shows an example of a subframe structure in which a common control channel is allocated in a distributed form in the frequency domain. That is, FIG. 9 (c) shows a state in which the common ' control channel described in FIG. 9 (a) is repeatedly allocated with the data channel on the frequency axis.
- FIG. 9 (d) shows a subframe structure in which the PBCH region and the common control channel described in FIG. 9 (b) are allocated in a distributed form. That is, the PBCH region and the common control channel are repeatedly allocated with the data channel on the frequency axis.
- the PBCH and / or common control channel described with reference to FIGS. 9A to 9D may be allocated in association with a physical cell identifier (PCID).
- PCID physical cell identifier
- the PBCH of each cell may act as an interference to the PBCH of neighboring cells.
- the PBCH region is allocated in association with the PCID as in the present invention, since the allocation position of the PBCH region is different for each cell, the PBCH region may not interfere with each other.
- the terminal When a PBCH and / or a common control channel are allocated in the form of FIG. 9 (a) or 9 (b), the terminal should be able to detect the corresponding PBCH and / or the common control channel region.
- various methods of detecting a PBCH and / or a common control channel by the terminal will be described.
- the UE may detect a PBCH and / or a common control channel region based on a physical cell identifier (PCID).
- PCID is defined as ⁇
- ⁇ is a downlink resource block of the corresponding subframe.
- N represents the number of subcarriers present in one RB.
- the region to which the PBCH or the common control channel is allocated may be determined as in Equation 3 or Equation 4 below.
- k represents an index of a subcarrier to which a PBCH or a common control channel is allocated. That is, when k represents a subcarrier index for the allocation area of the PBCH, the PBCH is a region of the predetermined subcarrier from the subcarrier indicated by the subcarrier index k during the interval from the first OFDM symbol to the n OFDM symbol in the corresponding subframe. Is assigned to. Accordingly, the UE may detect the PBCH and / or the common control channel allocated thereto through blind decoding from the subcarrier region indicated by the subcarrier index k.
- the frequency domain over which the PBCH or the common control channel is transmitted may be determined based on the PCID.
- a PBCH region is allocated in association with a physical cell identifier (PCID), so that a PBCH allocation region may be changed for each cell. Therefore, interference per cell due to PBCH signal transmission can be reduced.
- PCID physical cell identifier
- a control channel region to be transmitted based on a PCID may be determined.
- an area to which a common control channel is allocated or an area to which a PBCH is allocated may be allocated as shown in FIG. 9 (c) or 9 (d).
- the region to which the PBCH and / or the common control channel are allocated may have a predetermined candidate group.
- PBCH and / or common control channel are allocated in distributed form
- an area to which a PBCH or a common control channel is allocated may be determined as shown in Equation 5 below.
- the UE may detect the PBCH and / or the common control channel through blind decoding in the candidate group indicated by the n subcarrier indexes k n .
- the size of each channel region or the number of candidate groups (n) may be defined as a system parameter. Can be.
- the terminal may obtain information about the size or number of the channel area when the network access, or may be known as a predetermined value.
- the UE does not know the control region clearly only by the subcarrier index to which the PBCH and / or the common control channel is allocated. In this case, there may be a problem that the search space to be detected by the terminal through blind decoding is too large. Thus, below, the PBCH and / or the common control channel are allocated. A method of explicitly notifying the terminal of the size of the entire section will be described.
- an area to which a PBCH and / or a common control channel are allocated may be configured in a fixed form. That is, the size information of the entire interval for the PBCH and / or the common control channel may be set as a system parameter.
- the PBCH region is allocated to 6RB based on a center frequency.
- the UE may have a subcarrier index k derived from Equations 3 to 5;
- the resource region corresponding to 6RB can be recognized as a PBCH and / or a common control channel region.
- this is only one example, and the region to which the PBCH and / or the common control channel region is allocated may be set to any X RB.
- the PBCH and / or common control channel region may be set to an RB smaller than the existing 6RB according to the small sal environment.
- a PBCH and / or a common control channel region may be allocated to one of 1RB, 2RB, 3RB, 4RB or 5RB.
- Allocating a PBCH can be a waste of resources. That is, it is not necessary to allocate the PBCH for every subframe. Therefore, hereinafter, a method of allocating a PBCH and / or a common control channel only in a specific subframe in a frame structure will be described.
- FIG. 10 is a diagram illustrating a subframe to which a PBCH or the like is allocated in one frame structure.
- a PBCH may be allocated to an m th subframe within one radio frame.
- one radio frame means a bundle of p subframes.
- 10 subframes constitute one radio frame.
- PBCHs may be allocated to a plurality of subframes within one radio frame.
- ml, m2,... , PBCH is allocated in the m r- th subframe.
- 10 shows a frame structure when a PBCH is allocated to a second subframe in a radio frame.
- a repeatable PBCH may be configured for robust transmission of the PBCH signal.
- the PBCHs allocated in a certain number of radio frames have the same information, and the UE may increase reception performance by combining PBCH signals to be received.
- FIG. 11 is a diagram illustrating one method for transmitting a PBCH signal.
- a PBCH is allocated to a specific subframe within a radio frame, and a transmission period of a PBCH coral may be assumed to be 3 radio frames. That is, PBCH signals transmitted in three radio frames are transmitted with the same information.
- that the PBCH signal is transmitted in a repeated form means that the information transmitted through the PBCH is the same. That is, the scrambling code, bit interleaving, CRC parity bit, channel coding scheme, etc. for the PBCH signal may be different.
- FIG. 12 is a diagram illustrating an example of a PBCH detection method.
- the base station eNB may allocate a PBCH and / or a common control channel region (S1210).
- Assignments may be made using the methods described in Sections 3.5.1, 3.5.5 and / or 3.5.6.
- the base station broadcasts a synchronization signal (ie, PSS / SSS), and the terminal may acquire the PCID of the corresponding cell by using the received synchronization signal (S1220 and S1230).
- the UE can calculate the subcarrier index k indicating the control region using the methods described in Sections 3.5.2 to 3.5.4 using the PCID.
- the subcarrier index k may be referred to as a control region index (S1240).
- the UE may detect the PBCH and / or the common control channel region through the blind decoding (BD) from the subcarrier indicated by the subcarrier index k, and the PBCH through the detected PBCH and / or the common control channel.
- a signal and / or a control signal may be received (S1250).
- the UE does not perform a BD in step S1250, decodes the predetermined region from the subcarrier indicated by the subcarrier index k, and decodes the PBCH. Signals and / or control signals may be received.
- the apparatus described with reference to FIG. 13 is a means by which the methods described with reference to FIGS. 1 through 12 may be implemented.
- a UE may operate as a transmitting end in uplink and a receiving end in downlink.
- an e-Node B eNB
- eNB e-Node B
- the terminal and the base station respectively transmit (Tx module: 1340, 1350) and receive (Rx module :) to control the transmission and reception of information, data and / or messages.
- 1350 and 1370 may include antennas 1300 and 1310 for transmitting and receiving information, data, and / or messages.
- the terminal and the base station each of the processor (Processor: 1320, 1330) for performing the above-described embodiments of the present invention and the memory (1380, 1390) that can temporarily or continuously store the processing of the processor Each may include.
- Embodiments of the present invention can be performed using the components and functions of the above-described terminal and base station apparatus.
- the processor of the base station may allocate and transmit the PBCH by combining the methods described in Sections 1 to 3 described above.
- the processor of the terminal may receive the PBCH signal by deriving the PCID based on the received synchronization signal and calculating the subcarrier index k indicating the region to which the PBCH is allocated using the PCID.
- Such operations may refer to the methods described with reference to FIGS. 9 through 12.
- the transmission and reception modules included in the terminal and the base station include a packet modulation and demodulation function, a fast packet channel coding function, and an orthogonal frequency division multiple access (0FDMA) packet scheduling and time division for data transmission.
- Time Division Duplex (TDD) packet scheduling and / or channel multiplexing may be performed.
- the terminal and the base station of FIG. 13 may further include low power R Radio Frequency (IF) / IF (Intermediate Frequency) models.
- IF Radio Frequency
- the transmission modules and the reception modules may be called transmitter transmitters, respectively, and when used together, may be called transceivers.
- the terminal is a personal digital assistant (PDA), a cellular phone, a personal communication service (PCS) phone, a GSKGlobal System for Mobile (WCDMA) phone, a WCDMA (Wideband CDMA) phone. , MBS (Mobile Broadband System) phone, Hand-He Id PC, Notebook PC, Smart phone or Multi Mode Multi Band ( ⁇ - ⁇ ) terminal Can be.
- PDA personal digital assistant
- PCS personal communication service
- WCDMA Wideband CDMA
- MBS Mobile Broadband System
- Hand-He Id PC Hand-He Id PC, Notebook PC, Smart phone or Multi Mode Multi Band ( ⁇ - ⁇ ) terminal
- a smart phone is a terminal that combines the advantages of a mobile communication terminal and a personal portable terminal, and is a terminal integrating a data communication function such as schedule management, fax transmission and reception, which are functions of a personal mobile terminal, into a mobile communication terminal. It may mean.
- a multi-mode multi-band terminal is a multi-mode modem chip that can operate in both portable Internet systems and other mobile communication systems (for example, Code Division Multiple Access (CDMA) 2000 system, WCDMA (Wideband CDMA) system, etc.) Speak terminal.
- CDMA Code Division Multiple Access
- WCDMA Wideband CDMA
- Embodiments of the present invention may be implemented through various means.
- embodiments of the present invention may be implemented by hardware, firmware (fir) are, software or a combination thereof.
- the method according to the embodiments of the present invention may include one or more ASICs (applied cationic specific integrated circuits), digital signal processors (DSPs), and digital signal processing devices (DSPDs). , Programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and the like.
- ASICs applied cationic specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs Programmable logic devices
- FPGAs field programmable gate arrays
- processors controllers
- microcontrollers microcontrollers
- microprocessors and the like.
- the method according to the embodiments of the present invention may be implemented in the form of a module, procedure, or function that performs the functions or operations described above.
- the software code may be stored in the memory units 1380 and 1390 and driven by the processors 1320 and 1330.
- the memory unit may be located inside or outside the processor, and may exchange data with the processor by various known means.
- Embodiments of the present invention can be applied to various wireless access systems.
- various radio access systems include 3rd Generation Partnership Project (3GPP), 3GPP2 and / or IEEE 802.xx (Institute of Electrical and Electronic Engineers 802) systems.
- Embodiments of the present invention can be applied not only to the various radio access systems, but also to all technical fields to which the various radio access systems are applied.
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Abstract
Description
Claims
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JP2016504256A JP6320511B2 (ja) | 2013-03-21 | 2014-03-21 | 放送チャネル方法、放送チャネル信号送受信方法、及びこれらを支援する装置 |
EP14768486.4A EP2978151A4 (en) | 2013-03-21 | 2014-03-21 | METHOD FOR BROADCAST CHANNELS, METHOD FOR TRANSMITTING AND RECEIVING DIFFUSION CHANNEL SIGNAL, AND DEVICE FOR CHARGING THESE METHODS |
CN201480017058.5A CN105164965A (zh) | 2013-03-21 | 2014-03-21 | 广播信道方法、用于收发广播信道信号的方法以及支持其的设备 |
KR1020157024334A KR20150140273A (ko) | 2013-03-21 | 2014-03-21 | 방송채널 방법, 방송채널신호 송수신 방법 및 이를 지원하는 장치 |
US14/778,481 US20160294528A1 (en) | 2013-03-21 | 2014-03-21 | Broadcast channel method, method for transceiving broadcast channel signal, and device supporting the same |
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- 2014-03-21 KR KR1020157024334A patent/KR20150140273A/ko not_active Application Discontinuation
- 2014-03-21 CN CN201480017058.5A patent/CN105164965A/zh active Pending
- 2014-03-21 WO PCT/KR2014/002402 patent/WO2014148861A2/ko active Application Filing
- 2014-03-21 EP EP14768486.4A patent/EP2978151A4/en not_active Withdrawn
- 2014-03-21 JP JP2016504256A patent/JP6320511B2/ja not_active Expired - Fee Related
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US20160294528A1 (en) | 2016-10-06 |
EP2978151A2 (en) | 2016-01-27 |
CN105164965A (zh) | 2015-12-16 |
JP6320511B2 (ja) | 2018-05-09 |
WO2014148861A3 (ko) | 2015-11-26 |
JP2016519477A (ja) | 2016-06-30 |
EP2978151A4 (en) | 2016-12-21 |
KR20150140273A (ko) | 2015-12-15 |
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