WO2013170840A1 - 增强型下行控制信道的配置、检测方法及装置、基站、终端 - Google Patents
增强型下行控制信道的配置、检测方法及装置、基站、终端 Download PDFInfo
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- WO2013170840A1 WO2013170840A1 PCT/CN2013/080363 CN2013080363W WO2013170840A1 WO 2013170840 A1 WO2013170840 A1 WO 2013170840A1 CN 2013080363 W CN2013080363 W CN 2013080363W WO 2013170840 A1 WO2013170840 A1 WO 2013170840A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
- 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
Definitions
- the present invention relates to an enhanced downlink control channel configuration and detection technology, and in particular, to an enhanced downlink control channel configuration, detection method and apparatus, base station, and terminal. Background technique
- LTE Long Term Evolution
- R8/9 Long Term Evolution Release 8/9
- the user equipment (CRS, Common Reference Signal)
- CRS Common Reference Signal
- the user equipment UE, User Equipment
- the CRS Common Reference Signal
- the user equipment can perform channel measurement through the CRS, thereby determining that the UE performs cell reselection and handover to the target cell, and performs channel quality measurement in the UE connection state, when the interference
- the physical layer can be disconnected through high-level related wireless link connection failure signaling.
- CSI-RS Channel State Information Reference Signal
- DMRS Demodulation Reference Signal
- DMRS Precoding Matrix Indicator
- CQI Channel Quality Indicator
- RI Rank Indicator
- DMRS demodulation can use beam method to reduce different reception. Interference between the side and different cells, and the performance degradation caused by the codebook granularity can be reduced, and the overhead of downlink control signaling is reduced to some extent (because the bit overhead of the PMI is not added to the physical downlink control channel).
- the physical downlink control channels are mainly distributed in the first 1 of a subframe in LTE R8, R9, and R10. Or the first two or the first three Orthogonal Frequency Division Multiplexing (OFDM) symbols, the specific distribution needs to be configured according to different subframe types and the number of CRS ports, as shown in Table 1 below.
- OFDM Orthogonal Frequency Division Multiplexing
- Each receiving side needs to perform blind detection on the first three symbols.
- the starting position of the blind detection and the number of elements of the control channel are related to the wireless network temporary identification and different control information allocated to the receiving side.
- the control information can generally be divided into public control information and proprietary control information.
- the public control information is generally placed in the common search space of the physical downlink control channel, and the proprietary control can be placed in a common space and a dedicated search space.
- the receiving side determines whether there is a public system message, downlink scheduling, or uplink scheduling information in the current subframe after the blind detection. Since the downlink control information does not have a hybrid automatic repeat request (HARQ), it is necessary to ensure that the error rate of the detection is as low as possible.
- HARQ hybrid automatic repeat request
- the problem is to solve the problem of mutual interference between different types of base stations by using resource silence method.
- the specific resource silence method can be divided into The muting method of the frame, for example: ABS method, resource element based method, for example: CRS silent method.
- the above method not only increases the waste of resources, but also imposes great limitations on scheduling. Especially when considering the ABS configuration of the Macro eNodeB, if the Pico is distributed more, the Macro eNodeB configures more ABS, which will give Macro. The eNodeB brings a large impact, which increases resource waste and increases scheduling delay. Moreover, the control channel can reduce the interference of different control channel data resources under the ABS, but cannot solve the interference problem of the CRS resource and the data resource, and the method for the silent CRS cannot solve the interference between the data resources, and the method is backward compatible. Poor sex, while increasing access latency, may require more standardization efforts.
- MBSFN multicast broadcast single frequency network
- Multicast Broadcast Single Frequency Network is transmitted in the sub-band. This will result in insufficient capacity of the PDCCH that the MBSFN can configure for 2 OFDM symbols.
- physical Downlink shared channel PDSCH, hereinafter referred to as ePDCCH
- COMP Comp technology in the R11 phase. This technology can solve the interference problem between different types of cells by means of space division, and saves resource overhead and avoids silence. The waste of resources is brought about, and the restrictions on scheduling are reduced.
- the problem cannot be solved by the space division method.
- ePDCCH Enhanced Physical Downlink Control Channel
- PHICH Physical Hybrid Adaptive Reattend Request Indicator Channel
- the public search space control signaling needs to be enhanced. This problem is mainly considering whether the current public search space of R10 is limited in capacity and interference between different nodes. Especially for Macro (Macro) interference with Pico (microcell), if capacity is limited or interference problems are serious, it is necessary to introduce an enhanced public search space. Since the interference avoidance of the time-frequency resource location can be performed in the PDSCH region, the enhanced common search space based on the PDSCH region is the current hot spot, and the enhanced common search space based on the PDSCH region is collectively referred to as the enhanced common search space (eCSS, Enhanced Common Search). Space ).
- eCSS Enhanced Common Search
- An ePDCCH detection cluster may be composed of N physical resource block (PRB) pairs;
- K > 1 ePDCCH cluster is configured by UE-specific high-level signaling:
- K 2, 3, 4 or 6;
- K clusters can be configured with different N values; The total number of blind checks for each of the K clusters is independent;
- the total number of blind checks for a UE should be assigned to one cluster
- Each ePDCCH detection cluster is configured either as a centralized ePDCCH or as a distributed ePDCCH;
- the PRB pairs of different logical ePDCCH detection clusters may be completely covered or partially covered or not covered. Summary of the invention
- the main purpose of the present invention is to provide an enhanced downlink control channel configuration, detection method, and apparatus, a base station, and a terminal, which can provide configuration information of an ePDCCH detection cluster of R11, and flexibly configure an ePDCCH detection parameter.
- the ePDCCH detection cluster includes allocating one or more frequency domain resource units for detecting an ePDCCH in a subframe in which the ePDCCH is detected.
- An enhanced downlink control channel configuration method configured to configure K ePDCCH detection clusters for the terminal; the method includes:
- the antenna port index of the demodulation reference signal DMRS corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is independently configured;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster element corresponding to the different transmission mode is configured to transmit the available resource elements;
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of different transmission modes is configured independently;
- each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are respectively configured to detect the downlink control information format DCI Format or DCI Format set;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection subframe clusters corresponding to ePDCCH detection cluster detection of different transmission modes and/or, independently configuring the K ePDCCH detection clusters Corresponding aggregation level and/or search space start position and/or search space position of each ePDCCH detection cluster or ePDCCH detection cluster of different transmission mode detection;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes for the above signaling without default or default behavior in the case of not obtaining.
- ePDCCH detection cluster configuration includes at least one of the following configurations: detecting the number of clusters, detecting the aggregation level to be detected in the cluster, and detecting the needs in the cluster. The location of the detected resource.
- the antenna ports of the corresponding DMRSs of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are at least one of 107, 108, 109, and 110.
- one ePDCCH detection cluster of the K ePDCCH detection clusters or the corresponding DMRS antenna port of one transmission mode is configured to be two or more, according to the enhanced control channel unit eCCE and / Or Cell Radio Network Temporary Identity C-RNTI and/or predefined rules determine one DMRS port as a detection port among two or more DMRS antenna ports.
- the enhanced control channel unit eCCE and / Or Cell Radio Network Temporary Identity C-RNTI and/or predefined rules determine one DMRS port as a detection port among two or more DMRS antenna ports.
- the correspondence between the corresponding DMRS scrambling code sequence and the PDSCH DMRS scrambling code sequence for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of each transmission mode is: PDSCH DMRS is configured with scrambling code During sequence identification, each ePDCCH detection cluster of the K ePDCCH detection clusters is independently configured to detect a relationship between the DMRS scrambling code sequence and the PDSCH DMRS sequence.
- each EPDCCH detection cluster of the K ePDCCH detection clusters or the EPDCCH detection clusters of each transmission mode detects a CRS rate matching resource corresponding to at least the following CRS port number, CRS frequency domain location, CRS Cell identification.
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection resource element corresponding to each transmission mode detection ePDCCH resource element includes at least one of the following:
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection symbol set corresponding to each of the transmission mode ePDCCH detection clusters includes at least one of the following:
- the set of ePDCCH start symbols is 0, 1, 2, 3, 4 or one or more of the values detecting the number of ePDCCH start symbols that the PCFICH obtains.
- the configuration of the corresponding CSI measurement process when the ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of each transmission mode is detected includes:
- the large-scale information required for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode adopts information related to the configured CSI measurement process;
- the large-scale information includes at least one of the following:
- the CSI measurement process includes one of the following information:
- the measurement resources of the CSI measurement process, the measurement resources of the CSI measurement process and the CSI measurement subframe cluster, and the NZP CSI-RS measurement resources are provided.
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode includes:
- the large-scale information required for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode adopts one NZP CSI-RS in the corresponding configuration measurement set.
- the large-scale information includes at least one of the following:
- NZP CSI-RS corresponding delay extension NZP CSI-RS corresponding path delay, NZP CSI-RS corresponding Doppler shift, NZP CSI-RS corresponding Doppler spread, NZP CSI-RS Corresponding average received power.
- each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the DCI format that needs to be detected when detecting the ePDCCH detection cluster of each transmission mode includes:
- each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode independently configure the DCI Format that the terminal needs to detect in each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode or A collection of DCI Formats.
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes:
- EPDCCH detection subframe clusters are independently configured for each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode, and the ePDCCH detection subframe clusters indicate in which subframes the ePDCCH is detected by the terminal, In which subframes the PDCCH is detected or the terminal is instructed to use different ePDCCH detection cluster configurations in different subframe clusters.
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes:
- EPDCCH detection subframe clusters are independently configured for each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode, where the ePDCCH detection subframe clusters indicate on which subframes the terminal detects the ePDCCH A proprietary search space that detects the PDCCH's proprietary search space on other subframes.
- the dynamic resource location indication signaling of the PUCCH when the ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of each transmission mode is detected by the ePDCCH detection cluster includes:
- the transport mode ePDCCH detection cluster comprises a centralized transmission type ePDCCH detection cluster and a distributed transmission type ePDCCH detection cluster.
- each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are respectively configured to detect the downlink scheduling indication format DCI Format:
- a method for detecting an enhanced downlink control channel comprising:
- the terminal detects an enhanced downlink control channel,
- Each ePDCCH detection cluster or different The EPDCCH detection mode of the transmission mode detects the corresponding CSI measurement process configuration; and/or, obtains the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes. ;
- the cluster configuration includes at least one of the following configurations: detecting the number of clusters, detecting the aggregation level that needs to be detected in the cluster, and detecting the location of the resource in the cluster that needs to be detected.
- the antenna ports of the corresponding DMRSs of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are at least one of 107, 108, 109, 110;
- Corresponding relationship between the corresponding DMRS scrambling code sequence and the PDSCH DMRS scrambling code sequence for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is: when the PDSCH DMRS is configured with the scrambling code sequence identifier Configuring each of the K ePDCCH detection clusters to independently detect the DMRS scrambling code sequence and the PDSCH The relationship of DMRS sequences;
- the CRS rate matching resource corresponding to each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes at least one of the following: the number of ports of the CRS, the frequency domain location of the CRS, and the cell of the CRS. Identification
- Each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection resource element corresponding to each transmission mode detection ePDCCH detection resource element includes at least one of the following:
- CRS rate matching resource rate matching resource of ZP CSI-RS, ePDCCH start symbol, special subframe configuration, cyclic prefix CP length configuration;
- the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection symbol groups corresponding to each of the transmission mode detection groups include at least one of the following:
- the ePDCCH start symbol number set is 0, 1, 2 , 3, 4 or one or more values of detecting the number of ePDCCH start symbols obtained by the PCFICH;
- the configuration of the CSI measurement process when the EPDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is detected includes: when the CSI measurement process is configured for the terminal, the K ePDCCH detection clusters
- the large-scale information required for each ePDCCH detection cluster or ePDCCH detection cluster detection of each transmission mode adopts information related to the configured CSI measurement process; wherein the large-scale information includes at least one of the following: CSI measurement process corresponding to The delay spread, the path delay corresponding to the CSI measurement process, the Doppler shift corresponding to the CSI measurement process, the Doppler spread corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process; the CSI measurement process includes the following information One: measurement resources of the CSI measurement process, measurement resources of the CSI measurement process and CSI measurement subframe configuration, and NZP CSI-RS measurement resources.
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode includes: when configuring the measurement set for the terminal, the K ePDCCH detection clusters
- the large-scale information required for each ePDCCH detection cluster or ePDCCH detection cluster detection of each transmission mode adopts one of the corresponding configuration measurement sets.
- Each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the DCI format that needs to be detected when detecting the ePDCCH detection clusters of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each The ePDCCH detection cluster of the transmission mode, independently configuring the set of DCI Format or DCI Format that the terminal needs to detect in each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode;
- Each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each The ePDCCH detection cluster of the transmission mode independently configures the ePDCCH detection subframe cluster, the ePDCCH detection subframe cluster indicates which subframes the terminal detects the ePDCCH, on which subframes the PDCCH is detected or the terminal is in a different subframe.
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: Each ePDCCH detection cluster of the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode independently configures an ePDCCH detection subframe cluster, where the ePDCCH detection subframe cluster indicates on which subframes the terminal detects the dedicated search space of the ePDCCH, Detecting a dedicated search space of the PDCCH on other subframes;
- the dynamic resource location indication signaling of the PUCCH corresponding to each of the K-ePDCCH detection clusters or the EPDCCH detection clusters of each of the transmission modes includes: for each of the K ePDCCH detection clusters
- the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode independently configures dynamic resource location indication signaling of the PUCCH when the HARQ feedback is performed, and the dynamic resource location indication signaling indicates the downlink data HARQ feedback indicated by the terminal in different ePDCCHs.
- the independently configured PUCCH dynamic resource location indication signaling is adopted.
- one of the obtained ePDCCH detection clusters of the K ePDCCH detection clusters or one of the transmission mode ePDCCH detection clusters has two or more corresponding DMRS antenna ports, according to eCCE and/or C-RNTI And / or predefined rules in two or more
- a DMRS port is determined as a detection port in the DMRS antenna port.
- the transport mode ePDCCH detection cluster comprises a centralized transmission type ePDCCH detection cluster and a distributed transmission type ePDCCH detection cluster.
- the DCI Format that needs to be detected corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is: the terminal uses different DCI Format set detection for a specific K value. ;
- the terminal uses different DCI Format set detection for a specific K ePDCCH detection cluster and a specific distributed transmission type and a centralized transmission type ePDCCH detection cluster;
- the terminal detects each obtained ePDCCH detection cluster DCI Format set.
- An apparatus for configuring an enhanced downlink control channel comprising a first configuration unit and a second configuration unit, wherein:
- a first configuration unit configured to configure K ePDCCH detection clusters for the terminal
- a second configuration unit configured to independently configure an ePDCCH detection cluster of the K ePDCCH detection clusters or an antenna port index of the corresponding DMRS when the ePDCCH detection clusters of different transmission modes are detected;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or The EPDCCH detection clusters of the different transmission modes detect the corresponding CRS rate matching resources; and/or the ePDCCH transmission corresponding to each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are available.
- Resource element
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of different transmission modes is configured independently;
- each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are respectively configured to detect the downlink scheduling indication format DCI Format or DCI Format set;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection subframe clusters corresponding to ePDCCH detection cluster detection of different transmission modes and/or, independently configuring the K ePDCCH detection clusters Corresponding aggregation level and/or search space start position and/or search space position of each ePDCCH detection cluster or ePDCCH detection cluster of different transmission mode detection;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes for the above signaling without default or default behavior in the case of not obtaining.
- ePDCCH detection cluster configuration includes at least One of the following configurations: Detecting the number of clusters Objective, detect the aggregation level that needs to be detected in the cluster, and detect the location of the resource in the cluster that needs to be detected.
- the antenna ports of the corresponding DMRSs of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are at least one of 107, 108, 109, 110;
- Corresponding relationship between the corresponding DMRS scrambling code sequence and the PDSCH DMRS scrambling code sequence for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is: when the PDSCH DMRS is configured with the scrambling code sequence identifier And independently configuring, by each of the K ePDCCH detection clusters, the relationship between the DMRS scrambling code sequence and the PDSCH DMRS sequence;
- the CRS rate matching resource corresponding to each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes at least one of the following: the number of ports of the CRS, the frequency domain location of the CRS, and the cell of the CRS. Identification
- the ePDCCH available resource elements of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode are at least one of the following: CRS rate matching resources, ZP CSI-RS rate matching resources, ePDCCH start symbol, special subframe configuration, cyclic prefix CP length configuration;
- the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection symbol groups corresponding to each of the transmission mode detection groups include at least one of the following:
- the ePDCCH start symbol number set is 0, 1, 2 , 3, 4 or one or more values of detecting the number of ePDCCH start symbols obtained by the PCFICH;
- the configuration of the CSI measurement process when the EPDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is detected includes: when the CSI measurement process is configured for the terminal, the K ePDCCH detection clusters
- the large-scale information required for each ePDCCH detection cluster or ePDCCH detection cluster detection of each transmission mode adopts information related to the configured CSI measurement process; wherein the large-scale information includes at least one of the following: CSI measurement process pair
- the CSI measurement process includes One of the following information: Measurement resources of the CSI measurement process, measurement resources of the CSI measurement process and CSI measurement subframe configuration, and NZP CSI-RS measurement resources.
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode includes: when configuring the measurement set for the terminal, the K ePDCCH detection clusters
- the large-scale information required for each ePDCCH detection cluster or ePDCCH detection cluster detection of each transmission mode adopts information related to one NZP CSI-RS in the corresponding configuration measurement set;
- Each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the DCI format that needs to be detected when detecting the ePDCCH detection clusters of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each The ePDCCH detection cluster of the transmission mode, independently configuring the set of DCI Format or DCI Format that the terminal needs to detect in each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode;
- Each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each The ePDCCH detection cluster of the transmission mode independently configures the ePDCCH detection subframe cluster, the ePDCCH detection subframe cluster indicates which subframes the terminal detects the ePDCCH, on which subframes the PDCCH is detected or the terminal is in a different subframe.
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: Each ePDCCH detection cluster of the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode independently configures an ePDCCH detection subframe cluster, where the ePDCCH detection subframe cluster indicates on which subframes the terminal detects the dedicated search space of the ePDCCH, Detecting the private search space of the PDCCH on other subframes Between
- the dynamic resource location indication signaling of the PUCCH corresponding to each of the K-ePDCCH detection clusters or the EPDCCH detection clusters of each of the transmission modes includes: for each of the K ePDCCH detection clusters
- the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode independently configures dynamic resource location indication signaling of the PUCCH when the HARQ feedback is performed, and the dynamic resource location indication signaling indicates the downlink data HARQ feedback indicated by the terminal in different ePDCCHs.
- the independently configured PUCCH dynamic resource location indication signaling is adopted.
- the device further includes:
- a determining unit configured to: when one ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of one transmission mode is configured to be two or more corresponding to the DMRS antenna ports, according to the eCCE and/or The C-RNTI and/or the predefined rule determines one DMRS port as a detection port among two or more DMRS antenna ports.
- the transport mode ePDCCH detection cluster comprises a centralized transmission type ePDCCH detection cluster and a distributed transmission type ePDCCH detection cluster.
- the second configuration unit is further configured to:
- a base station includes the foregoing configuration apparatus of an enhanced downlink control channel.
- An apparatus for detecting an enhanced downlink control channel comprising a detecting unit and an obtaining unit, wherein:
- a detecting unit configured to detect an enhanced downlink control channel
- An obtaining unit configured to obtain each ePDCCH detection cluster of K ePDCCH detection clusters or The ePDCCH detection index of the corresponding DMRS when the ePDCCH detection clusters of the different transmission modes are detected; and/or the DMRS scrambling code corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes Sequence index
- Pre-defining or configuring the terminal to obtain each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes The default value or default behavior used;
- the cluster configuration includes at least one of the following configurations: detecting the number of clusters, detecting the aggregation level that needs to be detected in the cluster, and detecting the location of the resource in the cluster that needs to be detected.
- the antenna ports of the corresponding DMRSs of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are at least one of 107, 108, 109, 110;
- Corresponding relationship between the corresponding DMRS scrambling code sequence and the PDSCH DMRS scrambling code sequence for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is: when the PDSCH DMRS is configured with the scrambling code sequence identifier And independently configuring, by each of the K ePDCCH detection clusters, the relationship between the DMRS scrambling code sequence and the PDSCH DMRS sequence;
- the CRS rate matching resource corresponding to each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes at least one of the following: the number of ports of the CRS, the frequency domain location of the CRS, and the cell of the CRS. Identification
- the ePDCCH available resource elements of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode are at least one of the following: CRS rate matching resources, ZP CSI-RS rate matching resources, ePDCCH start symbol, special subframe configuration, cyclic prefix CP length configuration;
- the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection symbol groups corresponding to each of the transmission mode detection groups include at least one of the following:
- the ePDCCH start symbol number set is 0, 1, 2 , 3, 4 or one or more values of detecting the number of ePDCCH start symbols obtained by the PCFICH;
- the configuration of the CSI measurement process when the EPDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is detected includes: when the CSI measurement process is configured for the terminal, the K ePDCCH detection clusters
- the large-scale information required for each ePDCCH detection cluster or ePDCCH detection cluster detection of each transmission mode adopts information related to the configured CSI measurement process; wherein the large-scale information includes at least one of the following: CSI measurement process corresponding to The delay spread, the path delay corresponding to the CSI measurement process, the Doppler shift corresponding to the CSI measurement process
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode includes: when configuring the measurement set for the terminal, the K ePDCCH detection clusters
- the large-scale information required for each ePDCCH detection cluster or ePDCCH detection cluster detection of each transmission mode adopts information related to one NZP CSI-RS in the corresponding configuration measurement set;
- Each of the e-PDCCH detection clusters of the K ePDCCH detection clusters or the DCI format that needs to be detected when detecting the ePDCCH detection clusters of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each The ePDCCH detection cluster of the transmission mode, independently configuring the set of DCI Format or DCI Format that the terminal needs to detect in each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode;
- Each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each The ePDCCH detection cluster of the transmission mode independently configures the ePDCCH detection subframe cluster, the ePDCCH detection subframe cluster indicates which subframes the terminal detects the ePDCCH, on which subframes the PDCCH is detected or the terminal is in a different subframe.
- the K ePDCCHs Detecting each ePDCCH detection cluster of the cluster or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: ePDCCH detection for each of the K ePDCCH detection clusters or ePDCCH detection for each transmission mode
- the ePDCCH detection subframe cluster is configured by the cluster independently, and the ePDCCH detection subframe cluster indicates on which subframes the subframe detects the dedicated search space of the ePDCCH, and detects the dedicated search space of the PDCCH on other subframes.
- the dynamic resource location indication signaling of the PUCCH corresponding to each of the K-ePDCCH detection clusters or the EPDCCH detection clusters of each of the transmission modes includes: for each of the K ePDCCH detection clusters
- the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode independently configures dynamic resource location indication signaling of the PUCCH when the HARQ feedback is performed, and the dynamic resource location indication signaling indicates the downlink data HARQ feedback indicated by the terminal in different ePDCCHs.
- the independently configured PUCCH dynamic resource location indication signaling is adopted.
- the device further includes:
- a determining unit configured to: when one ePDCCH detection cluster of the K ePDCCH detection clusters obtained by the obtaining unit or the ePDCCH detection cluster of one transmission mode detects two or more DMRS antenna ports, The eCCE and/or C-RNTI and/or predefined rules determine one DMRS port as a detection port among two or more DMRS antenna ports.
- the transport mode ePDCCH detection cluster comprises a centralized transmission type ePDCCH detection cluster and a distributed transmission type ePDCCH detection cluster.
- the detecting unit is further configured to: use a different DCI Format set detection for a specific K value;
- Different DCI Format sets are detected for a specific K ePDCCH detection cluster and a specific distributed transmission and a centralized transmission ePDCCH detection cluster;
- a detection is performed for each ePDCCH detection cluster DCI Format set obtained.
- a terminal comprising the aforementioned detection device of an enhanced downlink control channel.
- a base station configured to utilize terminal-specific high layer signaling and/or downlink control information
- the DCI informs the terminal whether it is necessary to assume whether the DMRS antenna port of another shared time-frequency resource is used for ePDCCH or PDSCH transmission of another terminal when detecting the ePDCCH resource.
- the base station is further configured to: when configuring the K ePDCCH detection clusters, independently configure whether the DMRS antenna port for another shared time-frequency resource is used for another terminal in the K ePDCCH detection clusters when the terminal detects the ePDCCH resource ePDCCH or PDSCH transmission.
- the base station configures K ePDCCH detection clusters, and configures whether the DMRS antenna port of another shared time-frequency resource is allocated to another terminal in part or all of the K clusters when the terminal detects the ePDCCH resource.
- ePDCCH or PDSCH transmission ePDCCH or PDSCH transmission.
- the base station configures X subframe clusters to configure whether the DMRS antenna port of another shared time-frequency resource is allocated to another terminal in part or all of the X subframe clusters when the terminal detects the ePDCCH resource. ePDCCH or PDSCH transmission.
- the DMRS antenna port comprises: 107, 108, 109, 110, wherein the ports 107, 108 share time-frequency resources, and the ports 109, 110 share time-frequency resources.
- a terminal configured to: determine, by using terminal-specific high-layer signaling and/or DCI, whether to detect whether another DMRS antenna port of the shared time-frequency resource is used for ePDCCH or PDSCH transmission of another terminal when detecting the ePDCCH resource .
- the terminal is further configured to: obtain, by using the high-level signaling, the configured K ePDCCH detection clusters, and further, when the independent configuration terminal detects the ePDCCH resources, assume the DMRS for the other shared time-frequency resource in the K ePDCCH detection clusters.
- the antenna port is used for high-level signaling of the ePDCCH or PDSCH transmission channel estimation of another terminal, and performs channel estimation of the DMRS according to the received higher layer.
- the terminal is further configured to obtain the configured K by receiving terminal-specific high-level signaling.
- the ePDCCH detection clusters are additionally obtained whether the DMRS antenna ports of another shared time-frequency resource are assumed to be used for ePDCCH or PDSCH transmission of another user in some or all of the K clusters when the configuration terminal detects the ePDCCH resources.
- the terminal is further configured to obtain the configured X subframe clusters by receiving the terminal-specific high-layer signaling, and further obtain the configuration that when the configuration terminal detects the ePDCCH resource, assume another sharing time in some or all of the X subframe clusters. Whether the DMRS antenna port of the frequency resource is used for ePDCCH or PDSCH transmission of another user.
- the DMRS antenna port is configured to demodulate the ePDCCH, and includes: 107, 108, 109, 110, wherein the ports 107, 108 share time-frequency resources, and the ports 109, 110 share time-frequency resources.
- a terminal configured to: when detecting an ePDCCH resource, always determine that the DMRS antenna port of another shared time-frequency resource is not used for ePDCCH or PDSCH transmission of another terminal.
- the DMRS antenna port is configured to demodulate the ePDCCH, and includes: 107, 108, 109, 110, wherein the ports 107 and 108 share time-frequency resources, and the ports 109 and 110 share time-frequency resources.
- a terminal wherein the terminal determines, according to the ePDCCH transmission mode, whether it is necessary to assume whether another DMRS antenna port of the shared time-frequency resource is used for ePDCCH or PDSCH transmission of another terminal when detecting the ePDCCH resource.
- the terminal when the terminal is configured as a centralized ePDCCH, the terminal is configured to detect that the DMRS antenna port of another shared time-frequency resource is not used for ePDCCH or PDSCH transmission of another terminal when detecting the ePDCCH resource.
- the terminal when the terminal is configured as a distributed ePDCCH, the terminal is configured to detect that the DMRS antenna port of the shared time-frequency resource is not used for ePDCCH or PDSCH transmission of another terminal when detecting the ePDCCH resource.
- the DMRS antenna port is configured to demodulate the ePDCCH, and includes: 107, 108, 109, 110, wherein the ports 107 and 108 share time-frequency resources, and the ports 109 and 110 share time-frequency resources.
- the K ePDCCH detection clusters are configured for the terminal; and the antenna port index of the demodulation reference signal DMRS corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is independently configured; Or the DMRS scrambling code sequence index corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is independently configured;
- the mapping relationship between the corresponding DMRS scrambling code sequence and the DMRS scrambling code sequence of the physical downlink shared channel PDSCH of each ePDCCH detection cluster of the different ePDCCH detection clusters or the different transmission modes of the ePDCCH detection cluster is independently configured; or, independently configured
- the ePDCCH detects the corresponding ePDCCH available resource element when detecting the cluster; or, separately, configures each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection symbol number corresponding to the ePDCCH detection cluster detection of different transmission modes; or, independently Configuring a CPDCCH measurement process configuration for each ePDCCH detection cluster of the e ePDCC
- the ePDCCH detects the corresponding aggregation level and the search space start position in the cluster detection; or, independently, independently configures or independently configures each ePDCCH detection cluster of the K ePDCCH detection clusters or the default value of the ePDCCH detection cluster of different transmission modes or The default behavior.
- the terminal side detects the ePDCCH and obtains the configuration information to implement parsing of the ePDCCH.
- the technical solution of the present invention enables the base station side to flexibly configure the ePDCCH detection parameter for the terminal, so that the ePDCCH can flexibly perform dynamic handover between multiple TPs, and the base station side can configure the ePDCCH scheduling information more flexibly, so that the ePDCCH is stronger. Stability. DRAWINGS
- FIG. 1 is a schematic structural diagram of an apparatus for configuring an enhanced downlink control channel according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a detection apparatus of an enhanced downlink control channel according to an embodiment of the present invention. detailed description
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters by using the terminal high-layer signaling, and the base station independently configures each ePDCCH detection cluster or the antenna port index of the corresponding DMRS when each ePDCCH transmission mode cluster is detected by the terminal-specific high-layer signaling. .
- Terminal receiving The K ePDCCH detection clusters configured by the base station and the independently configured DMRS antenna ports perform reception and detection on the ePDCCH.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detection cluster 0, detecting DMRS port number is 7;
- the ePDCCH detection cluster 1 detects that the DMRS port number is 8.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detection cluster 0, detecting DMRS port number is 7, 8;
- the ePDCCH detection cluster 1 detects that the DMRS port number is 9, 10.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the centralized ePDCCH detects that the DMRS port number is 8.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the base station configures the terminal K (K ⁇ 1) ePDCCH detection clusters by using the terminal high-layer signaling, and the base station independently configures each ePDCCH detection cluster or the corresponding DMRS scrambling code sequence for each 5 ePDCCH transmission mode cluster detection by using the terminal-specific high-layer signaling. .
- the terminal receives and detects the ePDCCH by receiving K ePDCCH detection clusters configured by the base station and the independently configured DMRS scrambling code sequence.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH 10 detection cluster 0 and ePDCCH detection cluster 1;
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detection cluster 0 detecting the virtual cell ID corresponding to the scrambling code sequence of the DMRS is X0,
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- Example 3 The base station configures the terminal K (K ⁇ 1) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures each ePDCCH detection cluster or the corresponding DMRS scrambling code sequence in each ePDCCH transmission mode cluster detection by using the terminal-specific high-layer signaling. Correspondence between PDSCH DMRS scrambling sequences.
- the terminal receives the K ePDCCH detection clusters configured by the base station and independently allocates and detects.
- the binding relationship for example, a 1-bit value of 0, a binding X0, a value of 1 binding XI, and a Nscid value of 5 is 0 or 1.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the binding relationship can be indicated by the 1-bit high-level signaling to indicate the binding relationship with the PDSCHDMRS sequence.
- the 1-bit value is 0, the binding is X0, the value is 1 binding XI, and the Nscid value is fixed to 0 or 1.
- EPDCCH ⁇ 16 , EPDCCH .
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the CRS rate matching resources corresponding to each ePDCCH detection cluster detection by using the terminal-specific high-layer signaling.
- the terminal receives and detects the ePDCCH by receiving K ePDCCH detection clusters configured by the base station and independently configured CRS rate matching resources.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detects cluster 1, CRS rate matches resource S1.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, and the PDSCH CRS rate matching resources configured for the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are SO and Sl.
- CRS rate matching resource adopts SO
- CRS rate matching resource adopts S1.
- the binding relationship may be indicated by a 1-bit high-level signaling to indicate a binding relationship with a PDSCH CRS rate matching resource.
- a 1-bit value is 0, a binding S0, and a value 1 binding Sl.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the configured PDSCH CRS rate matching resources are SO and Sl.
- CRS rate matching resource adopts SO
- the binding relationship may be indicated by a 1-bit high-level signaling to indicate a binding relationship with a PDSCH CRS rate matching resource.
- a 1-bit value is 0, a binding S0, and a value 1 binding Sl.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the ePDCCH available resource elements corresponding to each ePDCCH detection cluster detection by using the terminal-specific high-layer signaling.
- the terminal receives and detects the ePDCCH by receiving K ePDCCH detection clusters configured by the base station and the independently configured ePDCCH available resource elements.
- the ePDCCH available resource element obtains at least one of the following information by using the following information: a CRS rate matching resource, a ZP CSI-RS rate matching resource, an ePDCCH start symbol, a special subframe configuration, and a CP length configuration.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detection cluster 1 available resource element S 1 .
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, for ePDCCH detection cluster 0 and ePDCCH detection cluster 1, and the available resource elements of the configured PDSCH are configured as SO and S1.
- ePDCCH detection cluster 0, available resource element SO;
- the binding relationship may be indicated by a 1-bit high-level signaling to indicate a binding relationship with the available resource elements of the PDSCH.
- a 1-bit value is 0, a binding S0, and a value 1 binding SI.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the available resource elements of the configured PDSCH are configured as SO and Sl.
- the binding relationship may be indicated by a 1-bit high-level signaling to indicate a binding relationship with the available resource elements of the PDSCH.
- a 1-bit value is 0, a binding S0, and a value 1 binding SI.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the number of ePDCCH start symbols corresponding to each ePDCCH detection cluster detection by the terminal-specific high-layer signaling.
- the terminal receives and detects the ePDCCH by receiving the K ePDCCH detection clusters configured by the base station and the number of independently configured ePDCCH start symbols.
- the number of ePDCCH start symbols is 0, 1, 2, 3 or 4 or a value obtained by detecting PCFICH (Physical Control Format Indicator Channel). .
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1;
- ePDCCH detection cluster 0, the number of ePDCCH start symbols is 1;
- the number of ePDCCH start symbols is 2.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, and the number of symbols of the ePDCCH start position of the PDSCH configured for the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 is 1 and 2.
- ePDCCH detection cluster 0, number of symbols at the start position of the ePDCCH, number of PDSCH start symbols, configured as 1;
- ePDCCH detection cluster 1 number of symbols at the start position of the ePDCCH, number of PDSCH start symbols, configured as 2;
- the binding relationship can be indicated by a 1-bit high-level signaling to indicate a binding relationship with the number of symbols at the beginning of the PDSCH. For example, a 1-bit value is 0, a binding 1 value is 1 binding 2.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the number of start symbols of the ePDCCH is 1;
- the number of ePDCCH start symbols is 2.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the number of ePDCCH start position symbols of the configured PDSCH is 1 and 2.
- ePDCCH start position symbol number PDSCH start symbol number is configured as 2;
- the binding relationship can be indicated by a 1-bit high-level signaling to indicate a binding relationship with the number of symbols at the beginning of the PDSCH. For example, a 1-bit value is 0, a binding 1 value is 1 binding 2.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the CSI measurement process configuration corresponding to each ePDCCH detection cluster detection by using the terminal-specific high-layer signaling.
- the terminal configures the reception and detection of the ePDCCH by receiving K ePDCCH detection clusters configured by the base station and independently configured CSI measurement processes.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1.
- the CSI Process configured for the terminal is CSI Process 0 and CSI Process 1
- ePDCCH detection cluster 0, corresponding to CSI Process 0;
- the ePDCCH detection cluster 1 corresponds to CSI Process 0.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, and ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are configured, and the configured PDSCH and CSI Process correspond to CSI Process 0 and CSI Process 1.
- the ePDCCH detects the cluster 0, and the ePDCCH and the CSI Process correspond to the correspondence between the PDSCH and the CSI Process 0;
- ePDCCH detection cluster 1, ePDCCH and CSI Process correspond to the correspondence between PDSCH and CSI Process 1;
- the binding relationship may be indicated by a 1-bit high-layer signaling to indicate a binding relationship with the number of symbols in the PDSCH starting position. For example, a 1-bit value is 0, and a correspondence between a PDSCH and a CSI Process 0 is bound, and a value of 1 is bound to the PDSCH. Correspondence with CSI Process 1.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the CSI Process configured for the terminal is CSI Process 0 and CSI Process 1
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the configured PDSCH corresponds to the CSI Process as CSI Process 0 and CSI Process 1.
- Distributed ePDCCH, ePDCCH and CSI Process correspond to PDSCH and CSI
- the centralized ePDCCH, ePDCCH and CSI Process correspond to the correspondence between PDSCH and CSI Process 1.
- the indication binding relationship may indicate a binding relationship with the number of symbols of the PDSCH start position by using 1-bit high-layer signaling, for example, a 1-bit value is 0, and the PDSCH and the CSI Process 0 are bound. Correspondence relationship, the value is 1 binding PDSCH and CSI Process 1.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the correspondence relationship of the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster detection by using the terminal-specific high-layer signaling.
- the terminal configures the reception and detection of the ePDCCH by receiving the correspondence between the K ePDCCH detection clusters configured by the base station and the independently configured NZP CSI-RSs.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1, and the NZP CSI-RS configured for the terminal is NZP CSI-RS 0 and NZP CSI-RS 1
- ePDCCH detection cluster 0, corresponding to NZP CSI-RS 0;
- the ePDCCH detection cluster 1 corresponds to the NZP CSI-RS 1.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1, and the configured PDSCH and NZP CSI-RS correspond to NZP CSI-RS 0 and NZP CSI-RS 1 .
- ePDCCH detection cluster 0, ePDCCH and CSI Process correspond to the correspondence between PDSCH and NZP CSI-RS 0;
- ePDCCH detection cluster 1, ePDCCH and CSI Process correspond to the correspondence between PDSCH and NZP CSI-RS 1;
- the binding relationship may be indicated by a 1-bit high-level signaling to indicate a binding relationship with the number of symbols at the beginning of the PDSCH. For example, a 1-bit value is 0, and the correspondence between the PDSCH and the NZP CSI-RS 0 is bound. Correspondence between PDSCH and NZP CSI-RS 1.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, and the ePDCCH is checked.
- Cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and EPDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCHs.
- the NZP CSI-RS configured for the terminal is NZP CSI-RS 0 and NZP CSI-RS 1
- the centralized ePDCCH corresponds to the NZP CSI-RS 1.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the configured PDSCH corresponds to the NZP CSI-RS as NZP CSI-RS 0 and NZP CSI-RS 1.
- the distributed ePDCCH, the ePDCCH and the CSI Process correspond to a correspondence between the PDSCH and the NZP CSI-RS 0;
- the centralized ePDCCH, the ePDCCH and the CSI Process correspond to the correspondence between the PDSCH and the NZP CSI-RS 1;
- the binding relationship can be indicated by the 1-bit high-level signaling to indicate the binding relationship with the number of symbols in the PDSCH starting position.
- the 1-bit value is 0, and the correspondence between the PDSCH and the NZP CSI-RS 0 is bound.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the corresponding DCI Format for each ePDCCH detection cluster detection by using the terminal-specific high-layer signaling.
- the terminal detects and detects the ePDCCH by receiving the K ePDCCH detection clusters configured by the base station and the independently configured DCI Format detection set.
- the corresponding configured DCI Format is detected in the configured ePDCCH detection cluster.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH.
- Detect cluster 0 and ePDCCH detection cluster 1 and configure the DCI Format detection set for the terminal to DCI.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, for ePDCCH detection cluster 0 and ePDCCH detection cluster 1, and the DCI Format detection set configured for the terminal is DCI.
- the DCI Format detection set 0 includes: DCI Format 1A, 0;
- the DCI Format detection set 1 includes: DCI Format 2C, 4.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the DCI Format detection set configured for the terminal is a DCI Format detection set 0 and a DCI Format detection set 1;
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the DCI Format detection set configured for the terminal is the DCI Format detection set 0 and the DCI Format detection set 1.
- the DCI Format detection set 0 includes: DCI Format 1A, 0;
- the DCI Format detection set 1 includes: DCI Format 2C, 4.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures the detection subframe cluster corresponding to each ePDCCH detection cluster detection by using the terminal-specific high-layer signaling.
- the terminal receives and detects the ePDCCH by receiving K ePDCCH detection clusters configured by the base station and independently configured detection subframe clusters. Detection is performed in the configured ePDCCH detection cluster according to the corresponding configured detection subframe cluster.
- the subframes are used to indicate which subframes the terminal side uses the ePDCCH for detection, which subframes use the PDCCH for detection, or the terminal to use different ePDCCH detection cluster configurations in different subframe clusters.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1, and the detection subframe clusters configured for the terminal are detection subframe cluster 0 and detection subframe cluster 1
- ePDCCH detection cluster 0, detecting subframe cluster 0;
- ePDCCH detection cluster 1 detecting subframe cluster 1.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the detection subframe cluster configured for the terminal is a detection subframe cluster 0 and a detection subframe cluster 1
- the centralized ePDCCH detects the subframe cluster 1.
- Sub-embodiment 3 of embodiment 10 For example, configuring four sub-frame clusters,
- the subframe cluster 0 is used to support the terminal side to adopt PDCCH detection in the corresponding subframe cluster;
- the subframe cluster 1 is used to indicate that the terminal side uses the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 in the corresponding subframe cluster to perform ePDCCH detection.
- the subframe cluster 2 is used to instruct the terminal side to perform ePDCCH detection by using the ePDCCH detection cluster 1 and the ePDCCH detection cluster 2 in the corresponding subframe cluster.
- the subframe cluster 3 is used to instruct the terminal side to perform ePDCCH detection by using the ePDCCH detection cluster 3 in the corresponding subframe cluster.
- the ePDCCH detection clusters 0, 1, 2, and 3 can independently detect the configuration of the cluster-related parameters, and at least include:
- the base station configures the terminal K (K ⁇ 1) ePDCCH detection clusters by using the terminal high-layer signaling, and the base station independently configures the dynamic position offset indication value position of the PUCCH when the corresponding HARQ feedback is detected by each ePDCCH detection cluster by the terminal-specific high-layer signaling. .
- the dynamic position offset indication value of the PUCCH when the terminal receives the K ePDCCH detection clusters configured by the base station and independently configures the corresponding HARQ feedback.
- the HARQ feedback is performed in the configured ePDCCH detection cluster according to the dynamic position offset indication value of the PUCCH corresponding to the configuration HARQ feedback.
- the dynamic position offset indication value of the PUCCH at the time of the HARQ feedback is used to indicate a dynamic position offset indication value of the uplink PUCCH resource used by the terminal side to feed back the ACK/NACK information corresponding to the ePDCCH.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1, and the starting position of PUCCH when the HARQ feedback is configured for the terminal is ⁇ .
- the starting position when the HARQ feedback A PUCCH is 0;
- ePDCCH detection cluster 1 when the HARQ feedback is the starting position of the PUCCH ⁇ ;
- For an FDD system has the following formula:
- CH is the resource location where the HARQ is actually transmitted
- W ⁇ CCH is the starting position of the PUCCH when HARQ feedback.
- CCE is the lowest eCCE index for transmitting the corresponding DCIFormat.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are centralized ePDCCHs, and the EPDCCH detection cluster 2 and the ePDCCH detection cluster 3 are distributed ePDCCHs.
- the starting position of the PUCCH when the HARQ feedback is configured for the terminal is ⁇ . And ⁇ ⁇
- CCE is the transmission corresponding The lowest eCCE index of DCIFormat.
- the base station configures the terminal K (K ⁇ 1) ePDCCH detection clusters by using the terminal high-layer signaling, and the base station does not independently configure each ePDCCH detection cluster or the corresponding DMRS scrambling code sequence for each ePDCCH transmission mode cluster detection by using the terminal-specific high-layer signaling. .
- the terminal detects clusters by receiving K ePDCCHs configured by the base station.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are distributed ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are centralized ePDCCH, and predefined distributed
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high-layer signaling, and the base station independently configures each ePDCCH detection cluster or the aggregation level corresponding to each ePDCCH transmission mode cluster detection by the terminal-specific high-layer signaling.
- the terminal receives the K configured by the base station.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are distributed ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are centralized ePDCCHs.
- Distributed ePDCCH aggregation level X0;
- Centralized ePDCCH aggregation level XI.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detection cluster 0 aggregation level X0;
- ePDCCH detection cluster 1 aggregation level XI.
- the base station configures the terminal K (K ⁇ 1) ePDCCH detection clusters by using the terminal high-layer signaling, and the base station independently configures each ePDCCH detection cluster or the corresponding search space location or search for each ePDCCH transmission mode cluster detection by using the terminal-specific high-layer signaling.
- the starting position of the space The terminal receives the K ePDCCH detection clusters configured by the base station and the independently configured one or more search space locations or search space start locations.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are distributed ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are centralized ePDCCHs.
- Distributed ePDCCH search space location or search space start location X0;
- Centralized ePDCCH Search space location or search space start location XI.
- Sub-embodiment 2 of embodiment 14 For example, the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, and ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are
- ePDCCH detection cluster 0 search space location or search space start position X0;
- ePDCCH detection cluster 1 Search space location or search space start location XI.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high layer signaling, and when the value of K is a special value, the base station independently configures each ePDCCH detection cluster or each ePDCCH transmission mode by using the terminal dedicated high layer signaling.
- the terminal receives the K ePDCCH detection clusters configured by the base station and the independently configured one or more search space locations or search space start locations.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are distributed ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are centralized ePDCCHs.
- Distributed ePDCCH DCI Format detection set X0;
- Centralized ePDCCH DCI Format detection set XI.
- the number of configured ePDCCH detection clusters is 2, that is, the value of K is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1.
- ePDCCH detection cluster 0 DCI Format detection set X0;
- ePDCCH detection cluster 1 DCI Format detection set X 1.
- the base station configures the terminal K (K ⁇ 1 ) ePDCCH detection clusters through the terminal high layer signaling, and when the value of K is a special value and the number of distributed and centralized ePDCCH clusters has a certain ratio relationship, the base station passes the terminal dedicated high layer. Signaling independently configures each ePDCCH detection cluster or A corresponding DCI Format detection set for each ePDCCH transmission mode cluster detection.
- the terminal receives the K ePDCCH detection clusters configured by the base station and the independently configured one or more search space locations or search space start locations.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are distributed ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are centralized ePDCCHs, that is, distributed ePDCCHs.
- the ratio of the number of clusters to the centralized ePDCCH is 2:2.
- Distributed ePDCCH DCI Format detection set X0;
- Centralized ePDCCH DCI Format detection set XI.
- the number of configured ePDCCH detection clusters is 4, that is, the value of K is 4, the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 are distributed ePDCCHs, and the ePDCCH detection cluster 2 and the ePDCCH detection cluster 3 are centralized ePDCCHs, that is, distributed ePDCCHs.
- the ratio of the number of clusters to the centralized ePDCCH is 2:2.
- ePDCCH detection cluster 0 DCI Format detection set X0;
- ePDCCH detection cluster 1 DCI Format detection set X0;
- ePDCCH detection cluster 2 DCI Format detection set X 1;
- ePDCCH detection cluster 3 DCI Format detection set X 1.
- the base station informs whether an ePDCCH terminal needs to assume whether another DMRS antenna port sharing the time-frequency resource is used for another user's ePDCCH or PDSCH transmission through terminal-specific high layer signaling and/or physical layer signaling.
- the terminal obtains, by receiving the terminal-specific high-layer signaling and/or the physical layer signaling, whether an ePDCCH terminal needs to assume another DMRS antenna sharing the time-frequency resource when detecting the ePDCCH resource. Whether the port is used for ePDCCH or PDSCH transmission of another user.
- the DMRS antenna port includes: 107, 108, 109, 110, wherein ports 107, 108 share time-frequency resources, and ports 109, 110 share time-frequency resources.
- the base station configures K ePDCCH detection clusters, and independently configures the terminal to determine whether the DMRS antenna port for another shared time-frequency resource is used for ePDCCH or PDSCH transmission of another user in the K ePDCCH detection clusters.
- the terminal obtains the configured K ePDCCH detection clusters by receiving the high layer signaling of the terminal, and further determines whether the DMRS antenna port for another shared time-frequency resource is used for another user in the K ePDCCH detection clusters when the independent configuration terminal detects the ePDCCH resource.
- the ePDCCH or PDSCH transports channel estimation high layer signaling, and performs channel estimation of the DMRS according to the received higher layer.
- the base station configures K ePDCCH detection clusters, and configures whether the terminal assumes that another DMRS antenna port sharing the time-frequency resource is used for another user's ePDCCH or PDSCH transmission in some or all of the K clusters.
- the terminal obtains the configured K ePDCCH detection clusters by receiving the terminal-specific high-level signaling, and obtains whether the DMRS antenna port of the other shared time-frequency resource is determined in some or all of the K clusters when the configuration terminal detects the ePDCCH resource. ePDCCH or PDSCH transmission for another user.
- the base station configures X subframe clusters to configure whether the terminal assumes that another DMRS antenna port sharing the time-frequency resource is used for another user's ePDCCH or PDSCH transmission in some or all of the X subframe clusters.
- the terminal obtains the configured X (X>0) subframe clusters by receiving terminal-specific high-level signaling, and Obtaining whether the DMRS antenna port of another shared time-frequency resource is assumed to be used for ePDCCH or PDSCH transmission of another user in some or all of the X (X>0) subframe clusters when the configuration terminal detects the ePDCCH resource.
- the terminal When detecting the ePDCCH resource, the terminal always determines that the DMRS antenna port of another shared time-frequency resource is not used for ePDCCH or PDSCH transmission of another user.
- the DMRS antenna port is used to demodulate the ePDCCH, and includes: 107, 108, 109, 110, wherein the ports 107, 108 share time-frequency resources, and the ports 109, 110 share time-frequency resources.
- the terminal determines, according to the ePDCCH transmission mode, whether it is necessary to assume whether the DMRS antenna port of another shared time-frequency resource is used for ePDCCH or PDSCH transmission of another terminal when detecting the ePDCCH resource.
- the terminal When the terminal is configured as a centralized ePDCCH, when the terminal detects the ePDCCH resource, the DMRS antenna port of the other shared time-frequency resource is always used for the ePDCCH or PDSCH transmission of the other terminal.
- the terminal When the terminal is configured as a distributed ePDCCH, when the terminal detects the ePDCCH resource, the DMRS antenna port of the other shared time-frequency resource cannot be used for the ePDCCH or PDSCH transmission of the other terminal.
- the DMRS antenna port is used to demodulate the ePDCCH, and includes: 107, 108, 109, 110, wherein the ports 107 and 108 share time-frequency resources, and the ports 109 and 110 share time-frequency resources.
- the configuration and the detection method of the enhanced downlink control channel provided by the present invention enable the base station side to flexibly configure the ePDCCH detection parameter for the terminal, so that the ePDCCH can flexibly switch between multiple TPs flexibly, and the base station is more flexible.
- the scheduling information of the ePDCCH is configured to make the ePDCCH have higher stability.
- FIG. 1 is a schematic structural diagram of an apparatus for configuring an enhanced downlink control channel according to an embodiment of the present invention
- the configuration apparatus of the enhanced downlink control channel of the present example includes a first configuration unit 10 and a second configuration unit 11, wherein:
- the first configuration unit 10 is configured to configure K ePDCCH detection clusters for the terminal, and the second configuration unit 11 is configured to independently configure each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes.
- the CRS rate matching resource corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are independently configured;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster element corresponding to the different transmission mode is configured to transmit the available resource elements;
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster detection of different transmission modes is configured independently;
- each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes for the above signaling without default or default behavior in the case of not obtaining.
- the ePDCCH detection cluster configuration includes at least One of the following configurations: detecting the number of clusters, detecting the aggregation level that needs to be detected in the cluster, and detecting the location of the resources in the cluster that need to be detected.
- the antenna ports of the corresponding DMRSs of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of the different transmission modes are at least one of 107, 108, 109, 110;
- Corresponding relationship between the corresponding DMRS scrambling code sequence and the PDSCH DMRS scrambling code sequence for each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode is:
- the PDSCH DMRS is configured with the scrambling code sequence, Independently configuring each ePDCCH detection cluster of the K ePDCCH detection clusters to detect a relationship between a DMRS scrambling code sequence and a PDSCH DMRS sequence;
- the CRS rate matching resource corresponding to each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes at least one of the following: the number of ports of the CRS, the frequency domain location of the CRS, and the cell identifier of the CRS. ;
- the ePDCCH available resource element corresponding to each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection cluster of each transmission mode includes at least one of the following: CRS rate matching resource, rate matching resource of ZP CSI-RS, ePDCCH Start symbol, special subframe configuration, cyclic prefix CP length configuration;
- the ePDCCH detection clusters of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection symbol groups corresponding to each of the transmission mode detection groups include at least one of the following:
- the ePDCCH start symbol number set is 0, 1, 2 3, 4 or detecting one or more values of the number of ePDCCH start symbols obtained by the PCFICH;
- the configuration of the CSI measurement process corresponding to the ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes: when configuring the CSI measurement process for the terminal, each of the K ePDCCH detection clusters
- the large-scale information required for the detection of the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode adopts information related to the configured CSI measurement process; wherein the large-scale information includes at least one of the following: a delay corresponding to the CSI measurement process The extended path, the path delay corresponding to the CSI measurement process, the Doppler shift corresponding to the CSI measurement process, the Doppler spread corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process;
- the CSI measurement process includes the following information 1: Measurement resources of the CSI measurement process, measurement resources of the CSI measurement process and CSI measurement subframe configuration, and NZP CSI-RS measurement resources
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode includes: when configuring the measurement set for the terminal, each of the K ePDCCH detection clusters
- the large-scale information required for the ePDCCH detection cluster or the ePDCCH detection cluster detection of each transmission mode adopts information related to one NZP CSI-RS in the corresponding configuration measurement set;
- Each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the DCI format that needs to be detected corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each transmission Mode ePDCCH detection Cluster, independently configuring the terminal to require a set of DCI Format or DCI Format detected by each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode;
- Each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each transmission
- the ePDCCH detection cluster of the mode independently configures the ePDCCH detection subframe cluster, the ePDCCH detection subframe cluster indicates on which subframes the terminal detects the ePDCCH, on which subframes the PDCCH is detected or the terminal is in a different subframe cluster.
- the ePDCCH detection cluster configuration is used in the ePDCCH detection cluster or the ePDCCH detection subframe cluster in the EPDCCH detection cluster detection of each transmission mode includes: Each ePDCCH detection cluster of the detection cluster or the ePDCCH detection cluster of each transmission mode independently configures an ePDCCH detection subframe cluster, where the ePDCCH detection subframe cluster indicates on which subframes the terminal detects the dedicated search space of the ePDCCH, Detecting a dedicated search space of the PDCCH on some other subframes;
- the dynamic resource location indication signaling of the PUCCH for each of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection clusters of each of the foregoing transmission modes includes: for each of the K ePDCCH detection clusters The detection of the cluster or the ePDCCH detection cluster of each transmission mode independently configures the dynamic resource location indication signaling of the PUCCH when the HARQ feedback is performed, and the dynamic resource location indication signaling indicates that the terminal uses the downlink data HARQ feedback indicated in different ePDCCHs. Independently configured PUCCH dynamic resource location indication signaling.
- the apparatus for configuring the enhanced downlink control channel of the present invention further includes:
- a determining unit (not shown in FIG. 1) configured to correspond to the DMRS day of one ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of one transmission mode
- one DMRS port is determined as a detection port among two or more DMRS antenna ports according to eCCE and/or C-RNTI and/or a predefined rule.
- the above determining unit is provided for optimizing the configuration apparatus of the enhanced downlink control channel of the present invention, and is not a necessary technical means for implementing the basic purpose of the apparatus for configuring the enhanced downlink control channel of the present invention.
- the foregoing transport mode ePDCCH detection cluster includes a centralized transmission type ePDCCH detection cluster and a distributed transmission type ePDCCH detection cluster. That is, the transmission mode ePDCCH includes two types of ePDCCH: a centralized transmission type ePDCCH and a distributed transmission type ePDCCH.
- the second configuration unit 11 is further configured to configure different DCI Format sets for a specific K value
- the implementation functions of the processing units in the configuration apparatus of the enhanced downlink control channel shown in FIG. 1 can be understood by referring to the related description of the configuration and detection method of the enhanced downlink control channel. It should be understood by those skilled in the art that the functions of the processing units in the configuration apparatus of the enhanced downlink control channel shown in FIG. 1 can be implemented by a program running on the processor, or can be implemented by a specific logic circuit.
- the present invention also describes a base station including the configuration apparatus of the enhanced downlink control channel shown in FIG.
- FIG. 2 is a schematic structural diagram of an apparatus for detecting an enhanced downlink control channel according to an embodiment of the present invention.
- the apparatus for detecting an enhanced downlink control channel of this example includes a detecting unit 20 and an obtaining unit 21, where:
- the detecting unit 20 is configured to detect an enhanced downlink control channel
- the obtaining unit 21 is configured to obtain an antenna port index of the corresponding DMRS when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of the different transmission mode is detected;
- the independent predefined or configured terminal obtains a default value or a default behavior adopted by each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes;
- ePDCCH detection cluster configuration includes at least one of the following configurations: detecting the number of clusters, detecting the aggregation level that needs to be detected in the cluster, and detecting the location of the resource in the cluster that needs to be detected.
- the antenna ports of the corresponding DMRSs of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of the different transmission modes are at least one of 107, 108, 109, 110;
- Corresponding relationship between the corresponding DMRS scrambling code sequence and the PDSCH DMRS scrambling code sequence for each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode is:
- the PDSCH DMRS is configured with the scrambling code sequence, Independently configuring each ePDCCH detection cluster of the K ePDCCH detection clusters to detect a relationship between a DMRS scrambling code sequence and a PDSCH DMRS sequence;
- the CRS rate matching resource corresponding to each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes at least one of the following: the number of ports of the CRS, the frequency domain location of the CRS, and the cell identifier of the CRS. ;
- the ePDCCH available resource element corresponding to each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection cluster of each transmission mode includes at least one of the following: CRS rate matching resource, rate matching resource of ZP CSI-RS, ePDCCH Start symbol, special subframe configuration, cyclic prefix CP length configuration;
- the ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection symbol set corresponding to each of the transmission mode ePDCCH detection clusters includes at least the following a: the number of ePDCCH start symbols is 0, 1, 2, 3, 4 or one or more values of detecting the number of ePDCCH start symbols obtained by the PCFICH;
- the configuration of the CSI measurement process corresponding to the ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes: when configuring the CSI measurement process for the terminal, each of the K ePDCCH detection clusters
- the large-scale information required for the detection of the ePDCCH detection cluster or the ePDCCH detection cluster of each transmission mode adopts information related to the configured CSI measurement process; wherein the large-scale information includes at least one of the following: a delay corresponding to the CSI measurement process The extended path, the path delay corresponding to the CSI measurement process, the Doppler shift corresponding to the CSI measurement process, the Doppler spread corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process;
- the CSI measurement process includes the following information 1: Measurement resources of the CSI measurement process, measurement resources of the CSI measurement process and CSI measurement subframe configuration, and NZP CSI-RS measurement resources
- the NZP CSI-RS configuration corresponding to each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection cluster detection of each transmission mode includes: when configuring the measurement set for the terminal, each of the K ePDCCH detection clusters
- the large-scale information required for the ePDCCH detection cluster or the ePDCCH detection cluster detection of each transmission mode adopts information related to one NZP CSI-RS in the corresponding configuration measurement set;
- Each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the DCI format that needs to be detected corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each transmission a mode of ePDCCH detection cluster, independently configuring the set of DCI Format or DCI Format that the terminal needs to detect in each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode;
- Each ePDCCH detection cluster of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: for each of the K ePDCCH detection clusters, each ePDCCH detection cluster or each transmission
- the ePDCCH detection cluster of the mode independently configures the ePDCCH detection subframe cluster, and the ePDCCH detection subframe cluster indicates that the terminal is in the Which ePDCCHs are detected on the subframes, the PDCCHs are detected on the subframes, or the ePDCCH detection clusters are in the different subframes of the ePDCCH detection clusters.
- the ePDCCH detection subframe cluster corresponding to the ePDCCH detection cluster detection of each transmission mode includes: separately configuring an ePDCCH detection subframe cluster for each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode,
- the ePDCCH detection subframe cluster indicates on which subframes the terminal detects the dedicated search space of the ePDCCH, and detects the dedicated search space of the PDCCH on other subframes;
- the dynamic resource location indication signaling of the PUCCH for each of the above-mentioned K ePDCCH detection clusters or the ePDCCH detection clusters of each of the foregoing transmission modes includes: for each of the K ePDCCH detection clusters The detection of the cluster or the ePDCCH detection cluster of each transmission mode independently configures the dynamic resource location indication signaling of the PUCCH when the HARQ feedback is performed, and the dynamic resource location indication signaling indicates that the terminal uses the downlink data HARQ feedback indicated in different ePDCCHs. Independently configured PUCCH dynamic resource location indication signaling.
- the apparatus for detecting the enhanced downlink control channel of the present invention further includes:
- a determining unit (not shown in FIG. 2) configured to detect two PDCCH ports of the ePDCCH detection cluster of the K ePDCCH detection clusters obtained by the obtaining unit or the ePDCCH detection cluster of one transmission mode, or two DMRS antenna ports When two or more are used, the eCCE and/or C-RNTI and / port are used as detection ports.
- the foregoing transport mode ePDCCH detection cluster includes a centralized transmission type ePDCCH detection cluster and a distributed transmission type ePDCCH detection cluster.
- the detecting unit 20 is further configured to use different DCI Format set detection for a specific K value;
- Different DCI Format sets are detected for a specific K ePDCCH detection cluster and a specific distributed transmission and a centralized transmission ePDCCH detection cluster;
- Each of the obtained ePDCCH detection cluster DCI Format sets is detected.
- the implementation functions of the processing units in the detection apparatus of the enhanced downlink control channel shown in FIG. 2 can be understood by referring to the related description of the configuration and detection method of the enhanced downlink control channel. It should be understood by those skilled in the art that the functions of the processing units in the detecting apparatus of the enhanced downlink control channel shown in FIG. 2 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
- the present invention also describes a terminal comprising the above-described enhanced downlink control channel detecting apparatus shown in Fig. 2.
- the above various processing units or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed among multiple computing devices.
- the network may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps in the fabrication are implemented as a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the technical solution of the present invention enables the base station side to flexibly configure the ePDCCH detection parameter for the terminal.
- the ePDCCH can flexibly perform dynamic handover between multiple TPs, and the base station side can configure the scheduling information of the ePDCCH more flexibly, so that the ePDCCH has stronger stability.
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Abstract
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Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/421,301 US9497754B2 (en) | 2012-09-20 | 2013-07-29 | Configuration and detection method and device for enhanced downlink control channel, evolved node B and terminal |
CA2882368A CA2882368A1 (en) | 2012-09-20 | 2013-07-29 | Configuration and detection method and device for enhanced downlink control channel, evolved node b and terminal |
RU2015111127/07A RU2602832C2 (ru) | 2012-09-20 | 2013-07-29 | Способ и устройство для конфигурирования и обнаружения усовершенствованного нисходящего канала управления, усовершенствованной базовой станции и терминала |
BR112015005872A BR112015005872A2 (pt) | 2012-09-20 | 2013-07-29 | método e dispositivo de configuração e detecção de um canal de controle de ligação descendente intensificada, e, equipamento de usuário |
MX2015003576A MX345359B (es) | 2012-09-20 | 2013-07-29 | Metodo y dispositivo de configuracion y deteccion para un canal de control de enlace descendente, un nodo b evolucionado y una terminal, mejorados. |
IN2856DEN2015 IN2015DN02856A (zh) | 2012-09-20 | 2013-07-29 | |
EP13790351.4A EP2879451A4 (en) | 2012-09-20 | 2013-07-29 | CONFIGURATION AND DETECTION METHOD AND DEVICE FOR IMPROVED DOWNLINK CONTROL CHANNEL, EVOLVED NODE-B AND END DEVICE |
KR1020157007328A KR101670197B1 (ko) | 2012-09-20 | 2013-07-29 | 향상된 다운링크 제어 채널 설정, 검출 방법 및 장치, 기지국, 및 단말 |
AU2013262151A AU2013262151B2 (en) | 2012-09-20 | 2013-07-29 | Configuration and detection method and device for enhanced downlink control channel, evolved node B and terminal |
JP2015531435A JP2015534337A (ja) | 2012-09-20 | 2013-07-29 | 強化型ダウンリンク制御チャネルの配置、検出方法および装置、基地局、端末 |
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EP2879451A4 (en) | 2015-09-09 |
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CN103686772A (zh) | 2014-03-26 |
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JP2015534337A (ja) | 2015-11-26 |
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IN2015DN02856A (zh) | 2015-09-11 |
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US9497754B2 (en) | 2016-11-15 |
CA2882368A1 (en) | 2013-11-21 |
RU2602832C2 (ru) | 2016-11-20 |
KR101670197B1 (ko) | 2016-10-27 |
RU2015111127A (ru) | 2016-11-10 |
EP2879451A1 (en) | 2015-06-03 |
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