WO2014198162A1 - 一种数据和控制信息的发送方法、接收方法、基站及终端 - Google Patents

一种数据和控制信息的发送方法、接收方法、基站及终端 Download PDF

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Publication number
WO2014198162A1
WO2014198162A1 PCT/CN2014/076213 CN2014076213W WO2014198162A1 WO 2014198162 A1 WO2014198162 A1 WO 2014198162A1 CN 2014076213 W CN2014076213 W CN 2014076213W WO 2014198162 A1 WO2014198162 A1 WO 2014198162A1
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WIPO (PCT)
Prior art keywords
terminal
special subframe
base station
tdd special
tdd
Prior art date
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PCT/CN2014/076213
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English (en)
French (fr)
Inventor
郭森宝
戴博
孙云锋
张峻峰
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/897,632 priority Critical patent/US20160142197A1/en
Publication of WO2014198162A1 publication Critical patent/WO2014198162A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438Negotiation of transmission parameters prior to communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035Resource allocation in a cooperative multipoint environment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0219Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0069Allocation based on distance or geographical location
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0073Allocation arrangements that take into account other cell interferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a Long Term Evolution Advanced System (LTE-Advanced), and more particularly to a method and a method for transmitting data and control information, a base station, and a terminal.
  • LTE-Advanced Long Term Evolution Advanced System
  • JT Joint Transmission
  • DPS Dynamic Point Selection
  • CS Coordinatd Scheduling
  • CB Coordinatd Beamforming, cooperative beamforming
  • JT mainly means that multiple nodes can transmit data information for one terminal at the same time in the allocated subframe. This transmission mode can convert the interference signal of the strong interference node into a useful signal, thereby improving the signal-to-noise ratio and the cell of the edge terminal. The spectral efficiency of the edges.
  • the CB mainly uses the beam method to make the two terminals served by the strong interfering node and the serving node use orthogonal spatial characteristic beams to reduce the interference of the interfering nodes in the spatial beam direction.
  • the CS mainly performs joint scheduling, so that the strong interfering node does not transmit data on the corresponding time-frequency resource, thereby reducing the interference of the strong interfering node.
  • DPS/DPB Dynamic Point Blanking
  • a prerequisite for multi-point collaboration is to assume that multiple service nodes are fully synchronized, which ensures more efficient coordinated transmission of multiple nodes. If the data of multiple nodes is not aligned, on the one hand, data reception errors may occur, and on the other hand, channel estimation errors may occur due to misalignment of reference channels.
  • TDD Time Division Duplexing
  • different subframes need to be configured due to different coverage. The configuration is also different. As shown in FIG.
  • eNB Macro Cell base station eNB
  • RRH Remote Radio Head
  • RRH2 Small Cell base station RRH2 Remote Radio Head
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe.
  • the coverage of these three nodes is different. Compared with RRH1 and RRH2, the coverage of the eNB is large. When the coverage required by the base station is large, a large GP is usually configured.
  • the downlink spectrum can be improved by configuring a smaller GP. rate.
  • 14 OFDM symbols may be included in a normal CP (Cyclic Prefix) configuration
  • 12 OFMD symbols may be included in an extended CP configuration
  • a special subframe of lms is used by DwPTS
  • the GP and UpPTS are composed of three parts.
  • Ts represents the sample interval.
  • the special subframe configuration may be different due to different coverage, as shown in Figure 2 (b), for example, Macro Cell
  • the special subframe configuration is 0, the Small Cell uses the special subframe configuration 4, and the two cells can transmit 9 OFDM for the PDSCH (Physical Downlink Shared Channel). The gap between the symbols.
  • the scheduling subframe is considered to be Special subframe configuration 0, thereby abandoning the demodulation for the PDSCH and reducing resource utilization.
  • Different special subframe configurations differ in the number of OFDM symbols occupied by the DwPTS.
  • the corresponding DMRS (De Modulation Reference Signal) is also different, as shown in Figure 3 and Figure 4. It is shown that when the special subframe configuration 1 and the special subframe configuration 4 are used, the corresponding DMRS is different. Assume that the Macro Cell uses Special subframe configuration 1 for a wider coverage range, and Small Cell uses Special subframe configuration 4. The two cells can achieve a gap of three OFDM symbols for PDSCH transmission.
  • the scheduling subframe is Special subframe configuration 1, which will cause the terminal to erroneously select and demodulate the DMRS, further demodulate the channel parameter error and the data rate matching resource element error, and finally result in data. Error receiving.
  • the Macro Cell uses the special subframe configuration 1
  • the Small Cell uses the special subframe configuration 2
  • the transmission of the PDSCH can reach a gap of 1 OFDM symbol, if the terminal only When the Macro Cell is connected, the scheduling subframe is considered to be Special subframe configuration 1 , and the terminal only receives the first 9 OFDM symbols, thereby causing the BLER (Block Error Ratio) of the terminal data reception to rise, and the data reception error is increased.
  • BLER Block Error Ratio
  • the problem that the sub-frame termination symbol is not aligned causes data and reference signal reception errors.
  • the present invention provides a method for transmitting data and control information, including: a base station transmitting data and/or downlink control information to a terminal within a service range on a time division duplex (TDD) special subframe according to a specific rule.
  • the specific rule is pre-configured on the base station or is indicated to the terminal by the base station in advance through high layer signaling;
  • the serving cell where the terminal is located currently performs coordinated multi-point transmission with one or more other cells, and has an independent TDD special subframe configuration with respect to the other cells.
  • the method further includes: the base station pre-configuring, by the terminal, a set of more than one non-zero power channel state information reference signal (NZP CSI-RS) configuration by using high layer signaling, where each set of NZP CSI-RS The configuration is corresponding to a set of TDD special subframe configuration signaling, where the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • NZP CSI-RS non-zero power channel state information reference signal
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the base station transmits data to terminals within the service range on the TDD special subframe according to a specific rule.
  • the method further includes:
  • the base station configures, in advance, one or more channel state information (CSI) processes for the terminal by using high layer signaling, where each CSI process corresponds to a set of TDD special subframe configuration signaling; wherein the TDD special subframe
  • the configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the base station transmits data to terminals within the service range on the TDD special subframe according to a specific rule.
  • the base station sends data to the terminal in the service range on the TDD special subframe according to a specific rule, including:
  • the base station sends data only in the cell corresponding to the first NZP CSI-RS; or the base station sends data only to the serving cell where the terminal is located or to the terminal according to the TDD special subframe configuration of the serving cell. Send data; or, The base station transmits data only in the cell corresponding to the first CSI process.
  • the method further includes:
  • the base station configures, in advance, one or more enhanced physical downlink control channel (EPDCCH) clusters for the terminal by using the high layer signaling, and configures a set of TDD special subframe configuration signaling for each EPDCCH cluster respectively; wherein the TDD special sub- The frame configuration signaling includes any one of the following or a combination of any number:
  • EDCCH enhanced physical downlink control channel
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the base station sends the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, including:
  • the base station sends the downlink control information to the terminal in the service range according to the special subframe configuration signaling configured for the first EPDCCH cluster in the TDD special subframe;
  • the base station For each EPDCCH cluster, the base station sends the downlink control information on the EPDCCH cluster according to the TDD special subframe configuration signaling configured for the EPDCCH cluster; or the base station is in the TDD special subframe according to the The TDD special subframe configuration signaling configured by the EPDCCH cluster of the serving cell where the terminal is located sends the downlink control information.
  • the base station sends the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, including:
  • the base station sends the downlink control information only in the cell corresponding to the first EPDCCH cluster; or the base station sends the downlink control information on the EPDCCH cluster corresponding to the serving cell where the terminal is located.
  • the method further includes:
  • the base station configures, in advance, the N special subframe configuration signaling by the terminal, and sends the value of at least part of the information bits in the downlink control information (DCI) to the terminal.
  • the terminal indicates a special subframe configuration signaling of the N special subframe configuration signaling corresponding to the subframe in which the data is currently sent; where N is a positive integer;
  • the method includes: the base station, according to the TDD special subframe configuration signaling indicated by the value of the information bit in the downlink control information, to the The terminal transmits a Physical Downlink Shared Channel (PDSCH).
  • PDSCH Physical Downlink Shared Channel
  • the sending, by the base station, the data and/or the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule includes: if the base station determines that the terminal is configured to be in a specific transmission mode, a DCI format Or the specific receiving downlink control information mode, the data and/or the downlink control information are sent to the terminal in the TDD special subframe according to the specific rule, where the specific received downlink control information mode is EPDCCH transmission or PDCCH transmission.
  • the base station determines that the terminal is configured to transmit mode 10
  • the base station transmits a PDSCH by using a reference signal (DMRS) for demodulation to the terminal in a TDD special subframe
  • DMRS reference signal
  • the base station transmits the PDSCH only on the serving cell where the terminal is located.
  • the base station determines that the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH to the terminal in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A. And the base station sends the PDSCH only on a serving cell where the terminal is located.
  • the base station determines that the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH to the terminal in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1 A. At the time, the PDSCH is transmitted only on the cell corresponding to the first NZP CSI-RS.
  • the base station determines that the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH to the terminal in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A.
  • the PDSCH is transmitted only on the cell corresponding to the first CSI process.
  • the base station determines that the terminal is configured to transmit mode 10 and the base station uses the EPDCCH to transmit downlink control information to the terminal in a TDD special subframe, only the serving cell where the terminal is located Sending the EPDCCH.
  • the base station determines that the terminal configuration is in the transmission mode 10 and the base station uses the EPDCCH to transmit downlink control information in the TDD special subframe, the base station only sends on the cell corresponding to the first EPDCCH cluster.
  • the EPDCCH is the base station.
  • the base station indicates, in advance, the NZP CSI-RS configuration or the CSI process configuration related to the data sent by the base station to the terminal by using at least part of the information bits in the delivered DCI, indicating that the The terminal receives data by using the TDP special subframe configuration signaling corresponding to the NZP CSI-RS configuration or the CSI process configuration.
  • the at least part of the information bits in the DCI are physical downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the base station pre-defines that only the serving cell performs data transmission to the terminal in the corresponding TDD special subframe.
  • the base station when a plurality of nodes configured for multipoint transmission by one terminal have different TDD special subframe configurations, when the difference in the number of OFDM symbols of the DwPTS regions configured by the two TDD special subframes is greater than N, the base station is predefined The corresponding TDD special subframe only serves the data transmission to the terminal by the serving cell, where N is a positive integer.
  • a method for receiving data and control information includes: receiving, by a terminal, data and/or downlink control information sent by a base station in a time division duplex (TDD) special subframe according to a specific rule; The terminal is learned in advance by receiving high-level signaling sent by the base station;
  • TDD time division duplex
  • the serving cell in which the terminal is located currently performs coordinated multi-point transmission with more than one other cell, and has an independent TDD special subframe configuration with respect to the other cells.
  • the method further includes: the terminal pre-receiving, by the base station, a set of more than one non-zero power channel state information reference signal (NZP CSI-RS) configured by the terminal by using high layer signaling, and each NZP CSI-RS: corresponding TDD special subframe configuration signaling; wherein the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • NZP CSI-RS non-zero power channel state information reference signal
  • TDD uplink and downlink subframe configuration index Subframe offset information or time slot offset information
  • the terminal receives data sent by the base station on the TDD special subframe according to a specific rule.
  • the method further includes:
  • the terminal pre-receives, by the base station, one or more channel state information (CSI) processes configured by the terminal through high layer signaling, and TDD special subframe configuration signaling corresponding to each CSI process; wherein the TDD special The subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the terminal receives data sent by the base station on the TDD special subframe according to a specific rule.
  • the terminal receives the data sent by the base station on the TDD special subframe according to a specific rule, including:
  • the terminal receives the data in a first NZP CSI-RS corresponding cell; or, the terminal only receives the data in a cell corresponding to the first CSI process.
  • the method further includes: the terminal pre-receiving, by the base station, one or more enhanced physical downlink control channel (EPDCCH) clusters configured by the terminal by using high layer signaling, and a set of TDDs configured for each EPDCCH cluster respectively.
  • EDCCH enhanced physical downlink control channel
  • Special subframe configuration signaling wherein the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • TDD special subframe configuration index TDD uplink and downlink subframe configuration index
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the terminal receives the downlink control information sent by the base station in the TDD special subframe according to the specific rule, and the method includes: the terminal receiving the downlink control information according to the TDD special subframe configuration signaling corresponding to the current EPDCCH cluster.
  • the terminal receives the downlink control information sent by the base station in the TDD special subframe according to the specific rule, and the method includes: receiving, by the terminal, the downlink in the EPDCCH cluster according to the TDD special subframe configuration signaling corresponding to the serving cell of the terminal Control information.
  • the method further includes: the terminal receiving, in advance, the N special subframe configuration signaling configured by the base station by using the high layer signaling, and the downlink control information (DCI); wherein, the DCI is The value of at least part of the information bits is used to indicate one special subframe configuration signaling in the N special subframe configuration signaling corresponding to the subframe in which the base station currently transmits data; where N is a positive integer;
  • DCI downlink control information
  • the method includes: the terminal receiving, according to the received TDD special subframe configuration signaling indication indicated by the value of the information bit in the DCI The data.
  • the receiving, by the terminal, the data and/or the downlink control information sent by the base station in the TDD special subframe according to the specific rule including: the terminal being configured to be in a specific transmission mode, a DCI format, or a specific receiving downlink control information.
  • the data and/or downlink control information sent by the base station is received on the TDD special subframe according to a specific rule.
  • the terminal is configured to transmit mode 10 and the terminal receives the PDSCH by using a reference signal (DMRS) for demodulation in a TDD special subframe
  • DMRS reference signal
  • the special subframe of the serving cell where the terminal is located is used.
  • the configuration receives the PDSCH.
  • the terminal is configured to transmit mode 10
  • the subframe configuration receives the PDSCH.
  • the terminal is configured to transmit mode 10 and the terminal receives the PDSCH by using the DMRS in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A
  • the first CSI process is used.
  • the special subframe configuration signaling of the cell receives the PDSCH.
  • the terminal uses the DMRS to receive the PDSCH on the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, the first CSI process is used.
  • the special subframe configuration signaling of the corresponding cell receives the PDSCH.
  • the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe
  • the terminal uses the special subframe configuration of the serving cell to receive the EPDCCH.
  • the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe
  • the terminal uses the special subframe configuration corresponding to the first EPDCCH cluster. Receiving the EPDCCH.
  • the method includes: the terminal pre-receiving the DCI sent by the base station to the local terminal, where at least part of the information in the DCI is used to indicate the NZP CSI-RS used by the base station to send data to the local terminal. Configuration or CSI process configuration; the terminal obtains a TDD special subframe configuration used for receiving data in the current subframe by using the NZP CSI-RS configuration or the CSI process configuration corresponding TDD special subframe configuration signaling.
  • the at least part of the information bits in the DCI are downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the base station pre-defines that only the serving cell performs data transmission to the terminal in the corresponding TDD special subframe.
  • the base station pre-defines that only the serving cell performs data transmission to the terminal in the corresponding TDD special subframe.
  • the present invention also provides a base station, including:
  • a storage module configured to: save a specific rule; wherein the specific rule is pre-configured in the
  • the storage module is instructed to the terminal by the high-level signaling in advance by the sending module, and the sending module is configured to: serve the service range on the time-division duplex (TDD) special subframe according to the specific rule saved in the storage module.
  • the terminal within the terminal sends data and/or downlink control information.
  • the serving cell in which the terminal is located currently performs coordinated multi-point transmission with more than one other cell, and has an independent TDD special subframe configuration with respect to the other cells.
  • the storage module is further configured to: save a set of more than one non-zero power channel state information reference signal (NZP CSI-RS) configured in advance by the terminal through high layer signaling, where each set of NZP CSI-
  • the RS configuration corresponds to a set of TDD special subframe configuration signaling, where the TDD special subframe configuration signaling includes any one or any combination of the following:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the sending module is configured to: send data to the terminal within the service range on the TDD special subframe according to the specific rule.
  • the storage module is further configured to: store one or more channel state information (CSI) processes configured in advance by the terminal through high layer signaling, where each CSI process and a set of TDD special subframe configuration signaling - Corresponding; wherein the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • CSI channel state information
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the sending module is configured to: send data to a terminal within the service range on the TDD special subframe according to the specific rule.
  • the sending module is configured to: send data to the terminal in the service range on the TDD special subframe according to the specific rule saved in the storage module, including:
  • the sending module sends data only in the cell corresponding to the first NZP CSI-RS; or the sending module only sends data in the serving cell where the terminal is located or according to the TDD special subframe configuration of the serving cell
  • the terminal sends data; or,
  • the sending module sends data only in the cell corresponding to the first CSI process.
  • the storage module is further configured to: store one or more enhanced physical downlink control channel (EPDCCH) clusters configured in advance by the terminal through high layer signaling, and a set of TDD special configured for each EPDCCH cluster respectively Subframe configuration signaling; wherein the TDD special subframe configuration signaling includes any one or any combination of the following:
  • EDCCH enhanced physical downlink control channel
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the sending module is configured to: send the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, including:
  • the sending module sends the downlink control information on the EPDCCH cluster according to the TDD special subframe configuration signaling configured for the EPDCCH cluster for each EPDCCH cluster; or the sending module is configured according to the terminal
  • the TDD special subframe configuration signaling configured by the EPDCCH cluster of the serving cell sends the downlink control information.
  • the sending module is configured to: send the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, including:
  • the sending module sends the downlink control information only in the cell corresponding to the first EPDCCH cluster; or the sending module is on the EPDCCH cluster corresponding to the serving cell where the terminal is located. Sending the downlink control information.
  • the storage module is further configured to: store N special subframe configuration signalings configured in advance by the terminal by using high layer signaling;
  • the sending module is further configured to: indicate, by using the value of at least part of the information bits in the downlink control information (DCI) that is sent, the N special subframe configuration signaling corresponding to the subframe in which the current data is sent. a special subframe configuration signaling; where N is a positive integer;
  • DCI downlink control information
  • the sending module is configured to: send data to the terminal in the service range on the TDD special subframe according to the specific rule, including: the TDD special sub-indicator indicated by the sending module according to the value of the information bit in the downlink control information
  • the frame configuration signaling sends a Physical Downlink Shared Channel (PDSCH) to the terminal.
  • PDSCH Physical Downlink Shared Channel
  • the sending module is configured to: send the data and/or the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, and the method includes: if the sending module determines that the terminal is configured Transmitting data and/or downlink control information to the terminal in a TDD special subframe according to the specific rule, where the specific downlink mode is received, EPDCCH transmission or PDCCH transmission.
  • the sending module is configured to: if it is determined that the terminal is configured to transmit mode 10, and the base station transmits the PDSCH by using a reference signal (DMRS) for demodulation to the terminal in a TDD special subframe Sending the PDSCH only on the serving cell where the terminal is located.
  • DMRS reference signal
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, and the corresponding DCI format is DCI Format 1A, send the PDSCH only on the serving cell where the terminal is located.
  • the sending module is configured to: if it is determined that the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI.
  • the PDSCH is transmitted only on the cell corresponding to the first NZP CSI-RS, or the terminal is configured to transmit the mode 10 and the base station uses the DMRS to transmit the PDSCH to the terminal in the TDD special subframe.
  • the DCI format corresponding to the PDSCH is DCI Format 1 A, only the cell corresponding to the first NZP CSI-RS The PDSCH is transmitted on.
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, and the corresponding DCI format is DCI Format 1 A, the PDSCH is sent only on the cell corresponding to the first CSI process.
  • the sending module is configured to: if it is determined that the terminal is configured to transmit mode 10 and the base station uses the EPDCCH to transmit downlink control information to the terminal in a TDD special subframe, only the service where the terminal is located The EPDCCH is transmitted on a cell.
  • the sending module is configured to: if it is determined that the terminal configuration is in the transmission mode 10 and the base station uses the EPDCCH to transmit downlink control information in the TDD special subframe pair, only the first EPDCCH cluster corresponds to The EPDCCH is transmitted on a cell.
  • the sending module indicates, in advance, the NZP CSI-RS configuration or the CSI process configuration related to the data sent by the base station to the terminal by using at least part of the information bits in the delivered DCI, thereby indicating the
  • the terminal uses the NZP CSI-RS configuration or the TDD special subframe configuration corresponding to the CSI process configuration to receive data.
  • the at least part of the information bits in the DCI are physical downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the base station pre-defines that only the serving cell performs data transmission to the terminal in the corresponding TDD special subframe.
  • the base station pre-defines that only the serving cell performs data transmission to the terminal in the corresponding TDD special subframe.
  • the invention also provides a terminal, comprising:
  • a storage module configured to: store a specific rule; wherein the specific rule is pre-configured in the storage module or is received by a receiving module to receive high-level signaling sent by the base station;
  • a receiving module configured to: time-division double according to the specific rule stored in the storage module Receiving data and/or downlink control information sent by the base station on the special subframe of the TDD; wherein the serving cell where the terminal is located currently performs coordinated multi-point transmission with more than one other cell, and is opposite to the other cell Has a separate TDD special subframe configuration.
  • the receiving module is further configured to: pre-receive a set of more than one set of non-zero power channel state information reference signals (NZP CSI-RS) configured by the base station by using high layer signaling, and each set of NZP CSIs -RS - corresponding TDD special subframe configuration signaling, and saved to the storage module;
  • NZP CSI-RS non-zero power channel state information reference signals
  • the receiving module is configured to: receive data sent by the base station on the TDD special subframe according to the specific rule; where the TDD special subframe configuration signaling includes any one of the following or a combination of any multiple:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • OFDM orthogonal frequency division multiplexing
  • the receiving module is further configured to: receive, in advance, one or more channel state information (CSI) processes configured by the base station by the high-level signaling, and a TDD special subframe configuration corresponding to each CSI process. Signaling and saving to the storage module; wherein the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • CSI channel state information
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the receiving module is configured to: receive data sent by the base station on the TDD special subframe according to the specific rule.
  • the receiving module is configured to: according to the specific rule, on a TDD special subframe Receiving data sent by the base station, including:
  • the receiving module receives the data according to the TDD special subframe configuration signaling of the serving cell where the terminal is located; or
  • the receiving module receives the data in a first NZP CSI-RS corresponding cell; or, the receiving module receives the data only in a cell corresponding to the first CSI process.
  • the receiving module is further configured to: receive, in advance, one or more enhanced physical downlink control channel (EPDCCH) clusters configured by the base station by using high layer signaling, and a set of TDD special configured for each EPDCCH cluster respectively.
  • EDCCH enhanced physical downlink control channel
  • the subframe configuration signaling is saved to the storage module, where the TDD special subframe configuration signaling includes any one of the following or a combination of any multiple:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the receiving module is configured to: receive the downlink control information sent by the base station in the TDD special subframe according to the specific rule, where the receiving module receives the downlink according to the TDD special subframe configuration signaling corresponding to the current EPDCCH cluster. Control information.
  • the receiving module is configured to: receive the downlink control information sent by the base station in the TDD special subframe according to the specific rule, and the method includes: the receiving module is configured to use the TDD special subframe corresponding to the serving cell where the terminal is located
  • the configuration signaling receives downlink control information in the EPDCCH cluster.
  • the receiving module is further configured to: receive, in advance, the N special subframe configuration signaling configured by the base station by the high-level signaling, and the downlink control information (DCI); wherein, in the DCI The value of the at least part of the information bits is used to indicate one special subframe configuration signaling in the N special subframe configuration signaling corresponding to the subframe in which the base station currently sends data; where N is a positive integer; For: receiving a base station on a TDD special subframe according to the specific rule The downlink control information sent by the receiving module is: the receiving module receives the data according to the received TDD special subframe configuration signaling indicated by the value of the information bit in the received DCI.
  • DCI downlink control information
  • the receiving module is configured to: receive data and/or downlink control information sent by the base station on the TDD special subframe according to the specific rule, and the method includes: the receiving module is configured in the local terminal to be in a specific transmission mode, a DCI format Or, when the mode of receiving the downlink control information is specifically received, the data and/or downlink control information sent by the base station is received on the TDD special subframe according to a specific rule.
  • the receiving module is configured to: when the terminal is configured to transmit mode 10 and the terminal receives the PDSCH by using a reference signal (DMRS) for demodulation in a TDD special subframe, using the service of the terminal
  • DMRS reference signal
  • the special subframe configuration of the cell receives the PDSCH.
  • the receiving module is configured to: if the terminal is configured to transmit mode 10,
  • the PDSCH 0 is received by using a special subframe configuration of the serving cell where the terminal is located.
  • the receiving module is configured to: when the terminal is configured to transmit mode 10 and the terminal receives the PDSCH by using the DMRS in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1 A, And receiving the PDSCH by using special subframe configuration signaling of a cell corresponding to the first NZP CSI-RS.
  • the receiving module is configured to: when the terminal is configured to transmit mode 10, the terminal uses the DMRS to receive the PDSCH on the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, The special subframe configuration signaling of the cell corresponding to the first CSI process receives the PDSCH.
  • the receiving module is configured to: when the local terminal is configured to transmit mode 10 and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the special subframe configuration of the serving cell is received.
  • the EPDCCH is configured to: when the local terminal is configured to transmit mode 10 and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the special subframe configuration of the serving cell is received.
  • the EPDCCH is configured to: when the local terminal is configured to transmit mode 10 and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the special subframe configuration of the serving cell is received.
  • the EPDCCH is configured to: when the local terminal is configured to transmit mode 10 and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the special subframe configuration of the serving cell is received.
  • the receiving module is configured to: when the local terminal is configured to transmit the mode 10 and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the special ESON cluster corresponding to the first EPDCCH cluster is used.
  • the frame configuration receives the EPDCCH.
  • the receiving module includes: receiving, in advance, a DCI sent by the base station to the terminal; At least part of the information in the DCI is used to indicate an NZP CSI-RS configuration or a CSI process configuration used by the base station to send data to the local terminal; the receiving module is further configured to use the NZP CSI-RS configuration.
  • the TDD special subframe configuration corresponding to the CSI process configuration obtains the TDD special subframe configuration used for receiving data in the current subframe.
  • the at least part of the information bits in the DCI are downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the embodiment of the invention solves the problem of receiving errors when performing coordinated multi-point transmission on the TDD special subframe, and ensures that all TDD special subframes can be used for coordinated multi-point transmission, which reduces the scheduling limitation of the base station.
  • FIG. 1 is a schematic diagram of different coverage requirements of Macro and Pico nodes in the related art
  • 2(a) and 2(b) are the TDD subframe configuration and the special subframe configuration of the macro station and the micro base station in the related art, respectively;
  • FIG. 3 is a DMRS pattern when the special subframe configuration 1 is used in the related art
  • FIG. 4 is a DMRS pattern when the special subframe configuration 4 is used in the related art
  • FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • a method for sending data and control information includes:
  • the base station sends data and/or downlink control information to the terminal within the service range on the TDD special subframe according to a specific rule; the specific rule is pre-configured on the base station or is indicated by the base station in advance through high layer signaling to the Terminal
  • the serving cell where the terminal is located currently has one or more other cells.
  • the multi-point coordinated transmission is performed and has an independent TDD special subframe configuration with respect to the other cells.
  • the method further includes:
  • the base station configures, in advance, the set of more than one non-zero power channel state information reference signal (No. NZP CSI-RS) configuration for the terminal through the high layer signaling, where each set of NZP CSI
  • the RS configuration corresponds to a set of TDD special subframe configuration signaling, where the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the base station sends data to the terminal in the service range on the TDD special subframe according to a specific rule, which specifically includes:
  • the base station sends data to the terminal according to a TDD special subframe configuration corresponding to the first NZP CSI-RS.
  • the method further includes:
  • the base station configures, in advance, one or more channel state information (CSI) processes for the terminal by using high layer signaling, where each CSI process corresponds to a set of TDD special subframe configuration signaling; wherein the TDD special subframe
  • the configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the terminal transmits data.
  • the base station sends data to the terminal in the service range on the TDD special subframe according to a specific rule, including:
  • the base station sends data only in the cell corresponding to the first NZP CSI-RS; or the base station sends data only to the serving cell where the terminal is located or to the terminal according to the TDD special subframe configuration of the serving cell. Send data; or,
  • the base station transmits data only in the cell corresponding to the first CSI process.
  • the method further includes:
  • the base station configures, in advance, one or more enhanced physical downlink control channel (EPDCCH) clusters for the terminal by using the high layer signaling, and configures a set of TDD special subframe configuration signaling for each EPDCCH cluster respectively; wherein the TDD special sub- The frame configuration signaling includes any one of the following or a combination of any number:
  • EDCCH enhanced physical downlink control channel
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the base station sends the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, which specifically includes:
  • the base station sends the downlink control information to the terminal in the service range according to the special subframe configuration signaling configured for the first EPDCCH cluster in the TDD special subframe;
  • the base station For each EPDCCH cluster, the base station sends the downlink control information on the EPDCCH cluster according to the TDD special subframe configuration signaling configured for the EPDCCH cluster; or the base station is in the TDD special subframe according to the The TDD special subframe configuration signaling configured by the EPDCCH cluster of the serving cell where the terminal is located sends the downlink control information.
  • the base station sends the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, which specifically includes: The base station sends the downlink control information only in a cell corresponding to the first EPDCCH cluster; or
  • the base station sends the downlink control information on an EPDCCH cluster corresponding to the serving cell where the terminal is located.
  • the method further includes:
  • the base station configures, in advance, the N special subframe configuration signaling by the terminal, and indicates the current transmission to the terminal by using the value of at least part of the information bits in the downlink control information (DCI) delivered.
  • DCI downlink control information
  • the terminal transmits a physical downlink shared channel (PDSCH).
  • PDSCH physical downlink shared channel
  • the sending, by the base station, the data and/or the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule includes: if the base station determines that the terminal is configured to be a specific transmission mode, DCI If the format or the specific downlink control information mode is received, the data and/or the downlink control information is sent to the terminal in a TDD special subframe according to a specific rule, where the specific received downlink control information mode is EPDCCH transmission or PDCCH transmission.
  • the base station determines that the terminal is configured to transmit mode 10, and the base station transmits a PDSCH by using a reference signal (DMRS) for demodulation to the terminal in a TDD special subframe.
  • DMRS reference signal
  • the base station transmits the PDSCH only on the serving cell where the terminal is located.
  • the base station determines that the terminal is configured to be in the transmission mode 10, the base station uses the DMRS to transmit the PDSCH in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A.
  • the base station sends the PDSCH only on the serving cell where the terminal is located.
  • the base station determines that the terminal is configured to transmit mode 10 and the base station is
  • the TDD special subframe transmits the PDSCH to the terminal using the DMRS, and the DCI format corresponding to the PDSCH is the DCI Format 1A, and only transmits the PDSCH on the cell corresponding to the first NZP CSI-RS.
  • the base station determines that the terminal is configured to be in the transmission mode 10, the base station uses the DMRS to transmit the PDSCH in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A.
  • the PDSCH is transmitted only on the cell corresponding to the first CSI process.
  • the base station determines that the terminal is configured to transmit mode 10 and the base station is
  • the TDD special subframe transmits the downlink control information to the terminal by using the EPDCCH
  • the EPDCCH is sent only on the serving cell where the terminal is located.
  • the base station determines that the terminal configuration is in the transmission mode 10 and the base station uses the EPDCCH to transmit downlink control information to the terminal in the TDD special subframe, only the cell corresponding to the first EPDCCH cluster is used. Sending the EPDCCH.
  • the method specifically includes:
  • the at least part of the information bits in the DCI are physical downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the base station pre-defines that only the serving cell transmits data to the terminal in the corresponding TDD special subframe.
  • the base station when a plurality of nodes configured for multipoint transmission by one terminal have different TDD special subframe configurations, when the difference in the number of OFDM symbols of the DwPTS regions configured by the two TDD special subframes is greater than N, the base station is predefined. In the corresponding TDD special subframe, only the serving cell performs data transmission to the terminal, where N is a positive integer.
  • a method for receiving data and control information includes:
  • the terminal receives data and/or downlink control information sent by the base station on a time division duplex (TDD) special subframe according to a specific rule; the specific rule is pre-configured on the terminal, or is a high layer sent in advance through the receiving base station. Signaling learned;
  • the serving cell where the terminal is located currently performs coordinated multi-point transmission with more than one other cell, and has an independent TDD special subframe configuration with respect to the other cells.
  • TDD time division duplex
  • the method further includes:
  • the terminal pre-receives, by the base station, a set of more than one non-zero power channel state information reference signal (NZP CSI-RS) configured by the terminal through high layer signaling, and a TDD special corresponding to each set of NZP CSI-RSs.
  • Subframe configuration signaling wherein the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the terminal receives data sent by the base station on the TDD special subframe according to a specific rule.
  • the method further includes:
  • the terminal pre-receives, by the base station, one or more channel state information (CSI) processes configured by the terminal through high layer signaling, and TDD special subframe configuration signaling corresponding to each CSI process; wherein the TDD special The subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the terminal receives the data sent by the base station in the special subframe of the TDD according to a specific rule, and specifically includes:
  • the terminal receives the data according to a TDD special subframe configuration corresponding to the first CSI process.
  • the terminal receives the number sent by the base station on the TDD special subframe according to a specific rule. According to the specifics, including:
  • the terminal receives the data in a first NZP CSI-RS corresponding cell; or, the terminal only receives the data in a cell corresponding to the first CSI process. .
  • the method further includes:
  • the terminal pre-receives, by the base station, one or more enhanced physical downlink control channel (EPDCCH) clusters configured by the terminal through high layer signaling, and a set of TDD special subframe configuration signaling configured for each EPDCCH cluster respectively;
  • the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the terminal receives the downlink control information sent by the base station in the TDD special subframe according to the specific rule, and specifically includes:
  • the terminal receives the downlink control information according to the TDD special subframe configuration signaling corresponding to the current EPDCCH cluster.
  • the terminal receives the downlink control information sent by the base station in the TDD special subframe according to the specific rule, and specifically includes:
  • the terminal receives the downlink control information in the EPDCCH cluster according to the TDD special subframe configuration signaling corresponding to the serving cell of the terminal.
  • the method further includes:
  • the terminal receives, in advance, the N special subframe configuration signaling configured by the base station by using the high layer signaling, and the downlink control information (DCI); wherein, at least part of the DCI is The value of the bit is used to indicate a special subframe configuration signaling in the N special subframe configuration signaling corresponding to the subframe in which the base station currently transmits data; where N is a positive integer;
  • the terminal receives data and/or downlink control information sent by the base station in the TDD special subframe according to a specific rule, and specifically includes: the terminal is configured to be in a specific transmission mode, a DCI format, or a specific receiving downlink control. In the mode of the information, the data and/or downlink control information sent by the base station is received on the TDD special subframe according to a specific rule.
  • the terminal is configured to transmit mode 10 and the terminal receives the PDSCH by using a reference signal (DMRS) for demodulation in a TDD special subframe
  • DMRS reference signal
  • the special sub-cell of the serving cell where the terminal is located is used.
  • the frame configuration receives the PDSCH.
  • the terminal is configured to transmit mode 10
  • the special subframe configuration receives the PDSCH.
  • the terminal is configured to transmit mode 10 and the terminal receives the PDSCH by using the DMRS in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, the first CSI process is used.
  • the special subframe configuration signaling of the corresponding cell receives the PDSCH.
  • the terminal uses the DMRS to receive the PDSCH on the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, the first CSI is used.
  • the special subframe configuration signaling of the cell corresponding to the process receives the PDSCH.
  • the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe
  • the terminal uses the special subframe configuration of the serving cell to receive the EPDCCH.
  • the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe
  • the terminal uses the special subframe corresponding to the first EPDCCH cluster.
  • the receiving the EPDCCH is configured.
  • the method specifically includes: the terminal pre-receiving the DCI sent by the base station to the terminal; At least part of the information in the DCI is used to indicate an NZP CSI-RS configuration or a CSI process configuration used by the base station to send data to the local terminal; the terminal is configured by using the NZP CSI-RS configuration or a CSI process.
  • the corresponding TDD special subframe configuration signaling obtains a TDD special subframe configuration used for receiving data in the current subframe.
  • the at least part of the information bits in the DCI are downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the base station pre-defines that only the serving cell performs data transmission to the terminal in the corresponding TDD special subframe.
  • the present invention further provides a base station, as shown in FIG. 5, including:
  • a storage module configured to save a specific rule, where the specific rule is pre-configured on the storage module or is sent to the terminal by a high-level signaling in advance by the sending module;
  • the sending module is configured to send data and/or downlink control information to a terminal in a service range on a time division duplex (TDD) special subframe according to the specific rule saved in the storage module; where the terminal
  • TDD time division duplex
  • the storage module is further configured to save a set of more than one non-zero power channel state information reference signal (NZP CSI-RS) configured in advance by the terminal through high layer signaling, where each set of NZP CSI-
  • the RS configuration corresponds to a set of TDD special subframe configuration signaling, where the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information The end position of the orthogonal frequency division multiplexing (OFDM) symbol occupied by the data and/or the downlink control information;
  • OFDM orthogonal frequency division multiplexing
  • the sending module is configured to send data to the terminal in the service range on the TDD special subframe according to the specific rule, and specifically includes:
  • the sending module is configured to send data to the terminal according to a TDD special subframe configuration corresponding to the first NZP CSI-RS saved in the storage module.
  • the storage module further stores one or more channel state information (CSI) processes configured in advance by the terminal through high layer signaling, where each CSI process and a set of TDD special subframe configuration signaling are configured.
  • CSI channel state information
  • the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the sending module is configured to send data to the terminal in the service range on the TDD special subframe according to the specific rule, where the sending module is configured to: according to the first CSI process saved in the storage module
  • the TDD special subframe configuration signaling sends data to the terminal.
  • the sending module is configured to send data to the terminal in the service range on the TDD special subframe according to the specific rule saved in the storage module, specifically:
  • the sending module is configured to send data only in a cell corresponding to the first NZP CSI-RS; or
  • the sending module is configured to send data to the terminal only in the serving cell where the terminal is located, or send data to the terminal according to the TDD special subframe configuration signaling of the serving cell; or
  • the sending module is configured to send data only in a cell corresponding to the first CSI process.
  • the storage module further stores one or more enhanced physical downlink control channel (EPDCCH) clusters configured in advance by the terminal through higher layer signaling, and each of the EPDCCHs A set of TDD special subframe configuration signaling configured by the cluster; wherein the TDD special subframe configuration signaling includes any one of the following or a combination of any multiple:
  • EPDCCH enhanced physical downlink control channel
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the sending module is configured to send the downlink control information to the terminal in the service range on the TDD special subframe according to the specific rule, which specifically includes:
  • the sending module is configured to send the downlink control information to a terminal in a service range according to the special subframe configuration signaling configured for the first EPDCCH cluster; or
  • the sending module is configured to send, according to the TPDCCH special subframe allocated for the EPDCCH cluster, the downlink control information on the EPDCCH cluster for each EPDCCH cluster; or, the sending module is configured to use the terminal as The TDD special subframe configuration signaling configured by the EPDCCH cluster of the serving cell sends the downlink control information.
  • the sending module is configured to send the downlink control information to the terminal in the service range in the TDD special subframe according to the specific rule, which specifically includes:
  • the sending module is configured to send the downlink control information only in a cell corresponding to the first EPDCCH cluster;
  • the sending module is configured to send the downlink control information on an EPDCCH cluster corresponding to the serving cell where the terminal is located.
  • the storage module further stores N special subframe configuration signalings configured in advance by the terminal by using high layer signaling;
  • the sending module is further configured to indicate, by using the value of at least part of the information bits in the downlink control information (DCI) that is sent, to the terminal, in the N special subframe configuration signaling corresponding to the subframe in which the data is currently sent.
  • DCI downlink control information
  • the sending module is configured to go to the service scope on the TDD special subframe according to the specific rule And transmitting, by the terminal, the sending module, configured to send, by using the TDD special subframe configuration signaling indicated by the value of the information bit in the downlink control information, a physical downlink shared channel (PDSCH) to the terminal.
  • PDSCH physical downlink shared channel
  • the sending module is configured to send data and/or downlink control information to the terminal in the service range in the TDD special subframe according to the specific rule, which specifically includes:
  • the sending module is configured to: if it is determined that the terminal is configured to be a specific transmission mode, a DCI format, or a specific receiving downlink control information mode, send data and/or to the terminal in a TDD special subframe according to the specific rule.
  • Downlink control information where the specific received downlink control information mode is EPDCCH transmission or PDCCH transmission.
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, and the base station transmits the PDSCH by using a reference signal (DMRS) for demodulation to the terminal in a TDD special subframe. Sending the PDSCH only on the serving cell where the terminal is located.
  • DMRS reference signal
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, the base station uses the DMRS to transmit the PDSCH in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI. In the case of Format 1A, the PDSCH is transmitted only on the serving cell where the terminal is located.
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI.
  • the PDSCH is transmitted only on the cell corresponding to the first NZP CSI-RS, or the terminal is configured to transmit mode 10 and the base station uses the DMRS transmission to the terminal in the TDD special subframe.
  • the PDSCH corresponding to the PDSCH is DCI Format 1A
  • the PDSCH is transmitted only on the cell corresponding to the first NZP CSI-RS.
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, the base station uses the DMRS to transmit the PDSCH in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI. In Format 1 A, the PDSCH is transmitted only on the cell corresponding to the first CSI process.
  • the sending module is configured to: if the terminal is configured to be in the transmission mode 10, and the base station uses the EPDCCH to transmit downlink control information in the TDD special subframe, only in the Sending the EPDCCH on the serving cell where the terminal is located.
  • the sending module is configured to: if the terminal configuration is determined to be the transmission mode 10 and the base station uses the EPDCCH to transmit downlink control information to the terminal in the TDD special subframe, only the first EPDCCH cluster corresponds to The EPDCCH is transmitted on a cell.
  • the method specifically includes:
  • the sending module indicates, in advance, at least part of the information bits in the delivered DCI, the NZP CSI-RS configuration or the CSI process configuration related to the data sent by the base station to the terminal, indicating the terminal usage
  • the TDD special subframe configuration corresponding to the NZP CSI-RS configuration or the CSI process configuration receives data.
  • the at least part of the information bits in the DCI are physical downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the base station pre-defines that only the serving cell transmits data to the terminal in the corresponding TDD special subframe.
  • the base station when a plurality of nodes configured for multipoint transmission by one terminal have different TDD special subframe configurations, when the difference in the number of OFDM symbols of the DwPTS regions configured by the two TDD special subframes is greater than N, the base station is predefined. In the corresponding TDD special subframe, only the serving cell performs data transmission to the terminal, where N is a positive integer.
  • the invention also provides a terminal, comprising:
  • a storage module configured to store a specific rule; wherein the specific rule is pre-configured in the storage module or is received by a receiving module to receive high-level signaling sent by the base station;
  • a receiving module configured to receive data and/or downlink control information sent by the base station on a time division duplex (TDD) special subframe according to the specific rule stored in the storage module;
  • TDD time division duplex
  • the serving cell in which the terminal is located currently performs coordinated multi-point transmission with more than one other cell, and has an independent TDD special subframe configuration with respect to the other cells.
  • the receiving module is further configured to receive, in advance, a set of more than one non-zero power channel state information reference signal (NZP CSI-RS) configured by the base station by using high layer signaling for the terminal, and
  • the signaling is configured with the TDD special subframe corresponding to each NZP CSI-RS, and is saved to the storage module; where the TDD special subframe configuration signaling includes any one of the following or a combination of any multiple:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the receiving module is configured to receive the data sent by the base station in the TDD special subframe according to the specific rule, where the method includes: the receiving module, configured to configure, according to the TDD special subframe corresponding to the first NZP CSI-RS, the receiving station Data.
  • the receiving module is further configured to receive, in advance, one or more channel state information (CSI) processes configured by the base station by the high-level signaling, and a TDD special subframe configuration corresponding to each CSI process. And signaling to the storage module, where the TDD special subframe configuration signaling includes any one of the following or a combination of any one of:
  • CSI channel state information
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the receiving module is configured to receive the data sent by the base station in the TDD special subframe according to the specific rule, where the method includes: the receiving module, configured to receive the data according to the TDD special subframe configuration corresponding to the first CSI process. .
  • the receiving module is configured to receive data sent by the base station on the TDD special subframe according to the specific rule, and specifically includes:
  • the receiving module is configured to receive the data in a serving cell where the terminal is located; or the receiving module is configured to configure a TDD special subframe configuration signal according to a serving cell where the terminal is located Order to receive the data; or,
  • the receiving module is configured to receive the data in a first NZP CSI-RS corresponding cell; or, the receiving module is configured to receive the data only in a cell corresponding to the first CSI process. .
  • the receiving module is further configured to receive, in advance, one or more enhanced physical downlink control channel (EPDCCH) clusters configured by the base station by using high layer signaling, and a set of TDD special configured for each EPDCCH cluster respectively.
  • EDCCH enhanced physical downlink control channel
  • the subframe configuration signaling is saved to the storage module, where the TDD special subframe configuration signaling includes any one of the following or a combination of any number:
  • Subframe offset information or time slot offset information are Subframe offset information or time slot offset information
  • the receiving module is configured to receive the downlink control information sent by the base station in the TDD special subframe according to the specific rule, where the method further includes: the receiving module is configured to configure a signaling receiving station according to the TDD special subframe corresponding to the current EPDCCH cluster. Describe the downlink control information.
  • the receiving module is configured to receive the downlink control information sent by the base station in the TDD special subframe according to the specific rule, where the method further includes: the receiving module is configured to use the TDD special sub-port corresponding to the serving cell where the terminal is located
  • the frame configuration signaling receives downlink control information in the EPDCCH cluster.
  • the receiving module is further configured to receive, in advance, the N special subframe configuration signaling configured by the base station by using the high layer signaling, and the downlink control information (DCI); wherein, in the DCI The value of the at least part of the information bits is used to indicate a special subframe configuration signaling in the N special subframe configuration signaling corresponding to the subframe in which the base station currently sends data; where N is a positive integer;
  • Receiving the downlink control information sent by the base station on the TDD special subframe according to the specific rule specifically: the receiving module is configured to: according to the received TDD special subframe indicated by the value of the information bit in the DCI The configuration signaling receives the data.
  • the receiving module is configured to receive the data and/or the downlink control information sent by the base station in the TDD special subframe according to the specific rule, where the method includes: the receiving module is configured to configure the specific transmission mode in the terminal. , in the DCI format or in a mode that receives downlink control information, The rule receives data and/or downlink control information sent by the base station on the TDD special subframe.
  • the receiving module is configured to use the service of the terminal when the terminal is configured to transmit the mode 10 and the terminal receives the PDSCH by using the reference signal (DMRS) for demodulation in the TDD special subframe.
  • DMRS reference signal
  • the special subframe configuration of the cell receives the PDSCH.
  • the receiving module is configured to use the terminal when the terminal is configured to transmit mode 10, receive the PDSCH by using the DMRS in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A.
  • the special subframe configuration of the serving cell in which the serving cell is located receives the PDSCH.
  • the receiving module is configured to: when the terminal is configured to transmit mode 10, and the terminal receives the PDSCH by using the DMRS in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, The PDSCH is received by using special subframe configuration signaling of a cell corresponding to the first NZP CSI-RS.
  • the receiving module is configured to: when the terminal is configured to transmit mode 10, the terminal uses the DMRS to receive the PDSCH on the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, The special subframe configuration signaling of the cell corresponding to the first CSI process receives the PDSCH.
  • the receiving module is configured to receive, when the terminal is configured to transmit mode 10, and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, and receive the special subframe configuration of the serving cell.
  • the EPDCCH is configured to receive, when the terminal is configured to transmit mode 10.
  • the receiving module is configured to: when the local terminal is configured to transmit the mode 10, and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the special ESON cluster corresponding to the first EPDCCH cluster is used.
  • the frame configuration receives the EPDCCH.
  • the receiving module receives, in advance, the DCI sent by the base station to the local terminal, where at least part of the information in the DCI is used to indicate the NZP CSI-RS used by the base station to send data to the local terminal.
  • the configuration is performed by the CSI process.
  • the receiving module is further configured to obtain a TDD special subframe configuration used for receiving data in the current subframe by using the NZP CSI-RS configuration or the CSI process configuration corresponding TDD special subframe configuration.
  • the at least part of the information bits in the DCI are downlink shared channel resource element mapping and pseudo-co-location indication (PQI) bits.
  • PQI pseudo-co-location indication
  • the terminal may first determine whether the subframe of the corresponding received data is a TDD special subframe, and if yes, perform data according to the corresponding TDD special subframe configuration. Receive, otherwise it can be received according to the configuration of the normal subframe. Specifically, the terminal may determine whether the corresponding subframe is a special subframe by receiving an uplink and downlink subframe configuration index.
  • the base station determines that the terminal is configured to transmit mode 10
  • the base station transmits the PDSCH by using the DMRS in the TDD special subframe pair
  • the base station transmits the PDSCH only on the serving cell where the terminal is located.
  • the terminal receives the PDSCH by using the TDD special subframe configuration of the serving cell.
  • Application example 2 When the TDD special subframe configuration of the multiple coordinated cells is different, the base station determines that the terminal is configured to transmit mode 10, and the base station uses the DMRS to transmit the PDSCH in the TDD special subframe to the terminal, the base station is only located at the terminal The PDSCH is transmitted on the serving cell.
  • the terminal When the terminal is configured to transmit mode 10, and the PDSCH is received by the DMRS in the special subframe, the terminal receives the PDSCH by using the special subframe configuration of the serving cell.
  • the base station determines that the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH in the TDD special subframe to the terminal, the base station is only located at the terminal with the terminal.
  • the PDSCH is transmitted on the same node of the serving cell TDD special subframe configuration.
  • the terminal When the terminal is configured to transmit mode 10, and the PDSCH is received by the DMRS in the special subframe, the terminal receives the PDSCH by using the special subframe configuration of the serving cell.
  • the base station determines that the terminal is configured to be in the transmission mode 10, and the base station uses the DMRS to transmit the PDSCH in the TDD special subframe to the terminal, the base station is only located at the terminal with the terminal.
  • Serving cell TDD special subframe configuration DwPTS The PDSCH is transmitted on a node whose corresponding OFDM symbol difference is less than N (N>0).
  • the terminal receives the PDSCH by using the special subframe configuration of the serving cell.
  • the base station determines that the terminal is configured to be in the transmission mode 10
  • the base station uses the DMRS to transmit the PDSCH to the terminal in the TDD special subframe, and the DCI (downlink control information) format corresponding to the PDSCH is DCI Format 1A
  • the base station transmits the PDSCH only on the serving cell where the terminal is located.
  • the terminal When the terminal is configured to transmit mode 10, and the PDSCH is received by the DMRS in the special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, the terminal receives the PDSCH by using a special subframe configuration of the serving cell.
  • the base station determines that the terminal is configured to transmit mode 10
  • the base station uses the DMRS to transmit the PDSCH to the terminal in the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A
  • the base station is only in the first NZP CSI. - transmitting the PDSCH 0 on the cell corresponding to the -RS
  • the terminal When the terminal is configured to transmit mode 10, and the terminal uses the DMRS to receive the PDSCH on the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1 A, the terminal uses the first NZP CSI-RS corresponding The TDD special subframe configuration of the cell receives the PDSCH 0
  • the base station determines that the terminal is configured to be in the transmission mode 10
  • the base station uses the DMRS to transmit the PDSCH in the TDD special subframe to the terminal
  • the DCI format corresponding to the PDSCH is DCI Format 1A
  • the base station only corresponds to the first CSI process.
  • the PDSCH is transmitted on the cell.
  • the terminal uses the DMRS to receive the PDSCH on the TDD special subframe, and the DCI format corresponding to the PDSCH is DCI Format 1A, the terminal uses the special sub-cell corresponding to the first CSI process.
  • the frame configuration receives the PDSCH.
  • the base station determines that the terminal is configured to be in the transmission mode 10
  • the base station transmits the downlink control information by using the EPDCCH (Enhanced Physical Downlink Control Channel) in the TDD special subframe
  • the base station is only located at the terminal.
  • the EPDCCH is transmitted on the serving cell.
  • the terminal When the terminal is configured to transmit mode 10 and the terminal receives the downlink control information by using the EPDCCH on the TDD special subframe, the terminal receives the EPDCCH by using the special subframe configuration of the serving cell.
  • the base station When the base station determines that the terminal is configured to transmit mode 10 and the base station uses the EPDCCH to transmit downlink control information in the TDD special subframe pair terminal, the base station transmits the EPDCCH only on the cell corresponding to the first EPDCCH cluster.
  • the terminal When the terminal is configured to transmit the mode 10 and the terminal uses the EPDCCH to receive the downlink control information on the TDD special subframe, the terminal receives the EPDCCH by using the TDD special subframe configuration corresponding to the first EPDCCH cluster.
  • the base station configures the N (N > 0) TDD special subframe configuration for the terminal by using the high layer signaling, and when the PDSCH is sent in the TDD special subframe, the terminal is indicated to the terminal by using at least part of the bits (such as 1 bit or 2 bits) in the DCI. Which of the N TDD special subframes the base station is currently transmitting transmits PDSCH 0
  • the terminal obtains N (N > 0) TDD special subframe configurations by using the high layer signaling, and when the terminal receives the PDSCH, uses at least part of the bits in the DCI to determine to use the N TDDs currently used by the base station. Which of the special subframe configurations is to receive the PDSCH.
  • the base station configures the N (N > 0) EPDCCH clusters for the terminal by using the high layer signaling, and configures a set of TDD special subframe configurations for each EPDCCH cluster respectively.
  • the configuration of the special subframes configured for different EPDCCH clusters may be the same. Can also be different;
  • the terminal obtains the configured N (N > 0) EPDCCH clusters by using the high layer signaling, where each EPDCCH cluster has an independent special subframe configuration, and the terminal detects each EPDCCH cluster in the TDD special subframe according to the corresponding special The subframe configuration detects the EPDCCH cluster.
  • the base station configures four TDD special subframe configurations for the terminal through the high layer signaling.
  • the PQI bit in the DCI is used to indicate to the terminal that the base station is currently using N(N > 0).
  • N(N > 0) which of the TDD special subframes transmits the PDSCH.
  • Table 3 The correspondence between the PQI bit and the four special subframe configurations is shown in Table 3.
  • the terminal obtains four TDD special subframe configurations by using the high layer signaling.
  • the terminal uses the PQI bit in the DCI to determine which of the N (N > 0) TDD special subframe configurations to be used by the base station.
  • One to receive the PDSCH One to receive the PDSCH.
  • the base station configures three TDD special subframe configurations for the terminal through the high layer signaling.
  • the PQI bit in the DCI is used to indicate to the terminal that the base station is currently used.
  • the correspondence between the PQI bit and the four special subframe configurations is shown in Table 4.
  • the terminal obtains three TDD special subframe configurations by using the high layer signaling.
  • the terminal uses the PQI bit in the DCI to determine which of the N (N > 0) TDD special subframe configurations to be used by the base station.
  • One to receive the PDSCH One to receive the PDSCH.
  • the base station pre-configures one or more NZP CSI-RSs for the terminal through the high-layer signaling, and needs to ensure that the TDD special subframe configuration corresponding to the one or more NZP CSI-RSs configured independently is configured.
  • the terminal When the terminal obtains one or more NZP CSI-RSs through the high layer signaling, the terminal considers that the configured one or more NZP CSI-RSs independently configure the corresponding TDD special subframe configuration.
  • the base station pre-configures one or more CSI processes for the terminal through the high-layer signaling, and ensures that the configured one or more CSI processes independently configure the corresponding TDD special subframe configuration.
  • the terminal When the terminal obtains one or more CSI processes through the high-layer signaling, the terminal considers that the configured one or more CSI processes independently configure the corresponding TDD special subframe configuration.
  • the base station configures more than one NZP CSI-RS for the terminal, and each NZP CSI-RS Configure a set of TDD special subframe configurations.
  • the base station transmits data to the terminal on the TDD special subframe the corresponding NZP CSI-RS information in the PQI bit in the DCI indicates the TDD special subframe configuration that should be used when the terminal receives the data in the TDD special subframe.
  • the terminal obtains more than one NZP CSI-RS configuration and corresponding TDD special subframe configuration by receiving high layer signaling.
  • the terminal When receiving data in a TDD special subframe, the terminal obtains a configuration index of the corresponding NZP CSI-RS by detecting a PQI bit in the DCI, thereby obtaining a TDD special subframe configuration corresponding to the NZP CSI-RS configuration, according to the TDD special
  • the subframe configuration receives data on the TDD special subframe.
  • EPDCCH Enhanced Power Control Channel
  • PMCH Physical Multicast Channel
  • the embodiment of the invention solves the problem of receiving errors when performing coordinated multi-point transmission on the TDD special subframe, and ensures that all TDD special subframes can be used for coordinated multi-point transmission, which reduces the scheduling limitation of the base station.

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Abstract

一种数据和控制信息的发送方法、接收方法、基站及终端,所述发送方法,包括:基站按照特定规则在TDD特殊子帧上向服务范围内的终端发送数据和/或下行控制信息;所述特定规则预配置在基站上或者由基站预先通过高层信令指示给终端;其中,终端所在的服务小区当前与一个以上的其他小区进行多点协作传输,且相对于其他小区具有独立的TDD特殊子帧配置; TDD特殊子帧配置包括TDD特殊子帧配置索引、或者TDD特殊子帧配置索引与以下任意一项或任意组合的组合:TDD上下行子帧配置索引;子帧偏置信息或者时隙偏置信息;数据和/或下行控制信息所占用的正交频分复用符号的终止位置。所述基站包括存储模块和发送模块。

Description

一种数据和控制信息的发送方法、 接收方法、 基站及终端
技术领域
本发明涉及长期演进高级系统 ( Long term evolution advanced system , 简 称 LTE- Advanced ) , 具体地说, 涉及一种数据和控制信息的发送方法、接收 方法、 基站及终端。
背景技术
在 R11的技术讨论中引入了多点协作传输标准技术, 支持的数据传输方 法包括: JT ( Joint Transmission, 联合传输)、 DPS ( Dynamic Point Selection, 动态小区选择) with/without muting. CS ( Coordinated Scheduling, 协作调 度) with/without muting、 CB ( Coordinated Beamforming, 协作波束赋型) 等方式。 JT主要指多个节点在分配的子帧上可以同时为一个终端发送数据信 息, 通过这种传输方式可以使得强干扰节点的干扰信号转换为有用信号, 从 而提高了边缘终端的信噪比及小区边缘的频谱效率。 CB主要通过波束方法, 使得强干扰节点和服务节点服务的两个终端釆用正交的空间特性波束, 在空 间波束方向减少干扰节点的干扰。 CS主要通过联合调度,使得强干扰节点在 对应的时频资源上不发送数据, 从而减少强干扰节点的干扰。 DPS/DPB ( Dynamic Point Blanking, 动态节点静默)可以实现动态的节点切换, 在保 证各个节点负载均衡的同时, 保证小区边缘频谱效率最优化。
多点协作存在的一个前提条件就是假定多个服务节点是完全同步的, 这 样可以保证多个节点更有效的协作传输。 如果多个节点的数据非对齐, 则一 方面会导致数据接收错误, 另一方面会因为参考信道没有对齐而导致信道估 计错误。 但是在 TDD ( Time Division Duplexing, 时分双工)场景下, 特别 是在两个节点覆盖范围不同的场景下, 虽然保证两个节点完全同步, 但是不 同节点由于覆盖范围不同则需要配置的特殊子帧配置也不同。 如图 1所示, 系统中存在三个基站, 分别为宏小区 ( Macro Cell )基站 eNB ( evolved Node B, 演进型基站)和微小区 ( Small Cell )基站 RRH ( Remote Radio Head, 射 频拉远头) 1 及 RRH2。 这三个节点在进行协作传输时, 可釆用相同的子帧 配置, 如图 2 (a)所示; 其中, D表示下行子帧, U表示上行子帧, S表示 特殊子帧。 这三个节点的覆盖范围不同, 与 RRH1及 RRH2相比, eNB的覆 盖范围要大。 当基站要求的覆盖范围较大时, 通常情况下会配置较大的 GP
( Guard Period, 保护间隔) , 以保证上下行子帧的切换时间, 此外还要求 DwPTS ( Downlink Pilot Time Slot, 下行导频时隙) 占用较少的 OFDM符号
( Orthogonal Frequency Division Multiplexing, 正交频分复用 ) , 例如釆用表 1中的特殊子帧配置 0或 1, 当基站要求覆盖范围较小时,可以通过配置较小 的 GP来提高下行的频谱利用率。 对于 lms的子帧, 在釆用普通 CP (Cyclic Prefix, 循环前缀)配置时可以包括 14个 OFDM符号, 在釆用扩展 CP配置 时可以包括 12个 OFMD符号 ,并且 lms的特殊子帧由 DwPTS、 GP和 UpPTS 三部分组成。
表 1 特殊子帧配置中 DwPTS、 GP及 UpPTS的长度
下行常规循环前缀 下行扩展循环前缀
UpPTS UpPTS 特殊子
帧配置 上行常 上行扩
DwPTS 上行常规循 上行扩展循 DwPTS
规循环 展循环 环前缀 环前缀
前缀 前缀
0 6592-7; 7680-7;
1 19760-7; 20480-7;
2192-7; 2560-7;
2 21952-7; 2192-7; 2560-7; 23040-7;
3 24144-7; 25600-7;
4 26336-7; 7680-7;
5 6592-7; 20480-7;
4384-7; 5120-7;
6 19760-7; 23040-7;
7 21952-7; 4384-7; 5120-7; 12800-7;
8 24144-7; ― ― ―
9 13168-7; - - - 其中, Ts表示釆样间隔。
进一步对表 1进行基于 OFDM符号的单位换算如表 2所示。
表 2 特殊子帧配置 DwPTS、 GP及 UpPTS的长度
Figure imgf000005_0001
在保证 Macro Cell和 Small Cell TDD同步的同时, 如釆用相同的 TDD 子帧配置, 由于其覆盖不同, 釆用的特殊子帧配置可能不同, 如图 2 ( b )所 例如, Macro Cell为了获得更广的覆盖范围釆用特殊子帧配置 (Special subframe configuration ) 0时, Small Cell釆用 Special subframe configuration 4 , 两小区对于 PDSCH ( Physical Downlink Shared Channel, 物理下行共享信道 ) 的传输可以达到 9个 OFDM符号的差距。 如果终端仅仅接入了 Macro Cell, 认为该调度子帧为 Special subframe configuration 0 , 从而放弃了对于 PDSCH 的解调, 减少了资源利用率。
不同特殊子帧配置由于 DwPTS占用的 OFDM符号数目不同, 为了保证 最优的系统性能, 所对应的 DMRS ( De Modulation Reference Signal, 用于解 调的参考信号)也不同, 如图 3和图 4所示, 釆用特殊子帧配置 1和特殊子 帧配置 4时, 所对应的 DMRS不同。假设 Macro Cell为了获得更广的覆盖范 围釆用 Special subframe configuration 1时 , Small Cell釆用 Special subframe configuration 4,两小区对于 PDSCH的传输可以达到 3个 OFDM符号的差距。 如果终端仅仅接入了 Macro Cell , 认为该调度子帧为 Special subframe configuration 1 , 会导致终端错误的选择解调 DMRS, 进一步解调信道参数的 错误以及数据速率匹配资源元素的错误, 最终导致数据的错误接收。
再例如, Macro Cell 为了获得更广的覆盖范围釆用 Special subframe configuration 1时, Small Cell釆用 Special subframe configuration 2 , 两 Λ!、区对 于 PDSCH的传输可以达到 1个 OFDM符号的差距, 如果终端仅仅接入了 Macro Cell, 认为该调度子帧为 Special subframe configuration 1 , 终端仅仅接 收前 9个 OFDM符号, 从而导致终端数据接收的 BLER ( Block Error Ratio, 块误码率)上升, 增加了数据接收错误的概率。 发明内容
本发明的目的在于提供一种数据和控制信息的发送方法、 接收方法、 基 站及终端, 以克服现有多个协作传输的节点的特殊子帧配置不同的场景下, 在进行多点传输时由于子帧终止符号没有对齐所导致的数据和参考信号接收 错误的问题。
为解决上述问题,本发明提供了一种数据和控制信息的发送方法, 包括: 基站按照特定规则在时分双工 ( TDD )特殊子帧上向服务范围内的终端 发送数据和 /或下行控制信息;所述特定规则预配置在所述基站上或者由所述 基站预先通过高层信令指示给所述终端;
其中, 所述终端所在的服务小区当前与一个或者一个以上的其他小区进 行多点协作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。 优选地, 所述方法还包括: 所述基站预先为所述终端通过高层信令配置 一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配置, 其中每一 套 NZP CSI-RS配置与一套 TDD特殊子帧配置信令——对应;其中所述 TDD 特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据。
优选地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置一个以上的信道状态信息 ( CSI )进程,其中每一个 CSI进程与一套 TDD特殊子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据。
优选地, 所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终 端发送数据, 包括:
所述基站仅仅在第一个 NZP CSI-RS对应的小区发送数据; 或者, 所述基站仅仅在所述终端所在的服务小区发送数据或者按照所述服务小 区的 TDD特殊子帧配置向所述终端发送数据; 或者, 所述基站仅仅在第一个 CSI进程对应的小区发送数据。
优选地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置一个以上的增强物理下行控 制信道( EPDCCH )簇, 并分别为每一个 EPDCCH簇配置一套 TDD特殊子 帧配置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多 项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送下 行控制信息, 包括:
所述基站在 TDD特殊子帧按照为第一个 EPDCCH簇配置的特殊子帧配 置信令向服务范围内的终端发送所述下行控制信息; 或者,
针对每一个 EPDCCH簇, 所述基站分别按照为该 EPDCCH簇配置的 TDD特殊子帧配置信令在该 EPDCCH簇上发送所述下行控制信息; 或者, 所述基站在 TDD特殊子帧按照为所述终端所在的服务小区的 EPDCCH 簇配置的 TDD特殊子帧配置信令发送所述下行控制信息。
优选地, 所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终 端发送下行控制信息, 包括:
所述基站仅仅在第一个 EPDCCH簇对应的小区发送所述下行控制信息; 或者,所述基站在所述终端所在的服务小区对应的 EPDCCH簇上发送所述下 行控制信息。
优选地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置 N个特殊子帧配置信令,并 通过下发的所述下行控制信息 (DCI ) 中的至少部分信息比特的值向所述终 端指示当前发送数据的子帧对应的 N个特殊子帧配置信令的一个特殊子帧配 置信令; 其中, N为正整数;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据, 包括: 所述基站按照所述下行控制信息中信息比特的值所指示的 TDD 特殊子帧配置信令向所述终端发送物理下行共享信道(PDSCH ) 。
优选地, 所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终 端发送数据和 /或下行控制信息, 包括: 所述基站若判断出所述终端被配置为 特定传输模式、 DCI格式或者特定接收下行控制信息模式, 则按照特定规则 在 TDD特殊子帧上向所述终端发送数据和 /或下行控制信息, 所述特定接收 下行控制信息模式为 EPDCCH发送或者 PDCCH发送。
优选地, 所述基站若判断出所述终端被配置为传输模式 10, 并且所述基 站在 TDD 特殊子帧对所述终端釆用用于解调的参考信号 (DMRS )传输 PDSCH时, 所述基站仅仅在所述终端所在的服务小区上发送所述 PDSCH。
优选地, 所述基站若判断出所述终端被配置为传输模式 10、 所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时, 所述基站仅仅在所述终端所在的服务小区上 发送所述 PDSCH。
优选地,所述基站若判断出所述终端被配置为传输模式 10且所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 NZP CSI-RS对应的小区上发 送所述 PDSCH。
优选地, 所述基站若判断出所述终端被配置为传输模式 10、 所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时, 仅仅在第一个 CSI进程对应的小区上发送所 述 PDSCH。
优选地,所述基站若判断出所述终端被配置为传输模式 10且所述基站在 TDD特殊子帧对所述终端釆用 EPDCCH传输下行控制信息时, 仅仅在所述 终端所在的服务小区上发送所述 EPDCCH。 优选地,所述基站若判断出所述终端配置被为传输模式 10且所述基站在 TDD 特殊子帧对终端釆用 EPDCCH传输下行控制信息时, 仅仅在第一个 EPDCCH簇对应的小区上发送所述 EPDCCH。
优选地, 包括: 所述基站预先通过下发的 DCI中的至少部分信息比特向 所述终端指示本基站向所述终端发送的数据所相关的 NZP CSI-RS配置或者 CSI进程配置, 指示所述终端釆用所述 NZP CSI-RS配置或者 CSI进程配置 对应的 TDD特殊子帧配置信令接收数据。
优选地,所述 DCI中的所述至少部分信息比特为物理下行共享信道资源 元素映射和准共址指示 (PQI ) 比特。
优选地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输。
优选地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号 数目差大于 N时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输, 其中, N为正整数。
相应地, 一种数据和控制信息的接收方法, 包括: 终端按照特定规则在 时分双工(TDD )特殊子帧上接收基站发来的数据和 /或下行控制信息; 所述 特定规则预配置在所述终端上, 或者是预先通过接收基站发来的高层信令获 知的;
其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
优选地, 所述方法还包括: 所述终端预先接收所述基站为本终端通过高 层信令配置的一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配 置以及与每套 NZP CSI-RS——对应的 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引; 子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据。
优选地, 所述方法还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一个以上的信 道状态信息( CSI )进程以及与每一个 CSI进程——对应的 TDD特殊子帧配 置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的 组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据。
优选地, 终端按照特定规则在 TDD特殊子帧上接收基站发来的数据, 包括:
所述终端在本终端所在的服务小区接收所述数据; 或者,
所述终端按照本终端所在的服务小区的 TDD特殊子帧配置信令接收所 述数据; 或者,
所述终端在第一个 NZP CSI-RS对应小区接收所述数据; 或者, 所述终端仅仅在第一个 CSI进程对应的小区接收所述数据。
优选地, 所述方法还包括: 所述终端预先接收所述基站为本终端通过高 层信令配置的一个以上的增强物理下行控制信道(EPDCCH )簇以及分别为 每一个 EPDCCH簇配置的一套 TDD特殊子帧配置信令; 其中所述 TDD特 殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引; TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下行控制信 息, 包括: 所述终端按照当前 EPDCCH簇对应的 TDD特殊子帧配置信令接 收所述下行控制信息。
优选地, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下 行控制信息, 包括: 所述终端按照本终端所在服务小区对应的 TDD特殊子 帧配置信令接收 EPDCCH簇中的下行控制信息。
优选地, 所述方法还包括: 所述终端预先接收所述基站为本终端通过高 层信令配置的 N个特殊子帧配置信令以及所述下行控制信息( DCI ); 其中, 所述 DCI中的至少部分信息比特的值用于指示所述基站当前发送数据的子帧 对应的 N个特殊子帧配置信令中的一个特殊子帧配置信令; 其中, N为正整 数;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下行数据信 息, 包括: 所述终端按照接收到的所述 DCI中的信息比特的值所指示的 TDD 特殊子帧配置信令接收所述数据。
优选地, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数 据和 /或下行控制信息, 包括: 所述终端在被配置为特定传输模式、 DCI格式 或者特定接收下行控制信息的模式时, 按照特定规则在 TDD特殊子帧上接 收基站发来的数据和 /或下行控制信息。
优选地, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子 帧釆用用于解调的参考信号 (DMRS )接收 PDSCH 时, 釆用本终端所在的 服务小区的特殊子帧配置接收所述 PDSCH。
优选地,所述终端若被配置为传输模式 10、在 TDD特殊子帧釆用 DMRS 接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 釆用本 终端所在的服务小区的特殊子帧配置接收所述 PDSCH。 优选地, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子 帧釆用 DMRS接收 PDSCH、且所述 PDSCH对应的 DCI格式为 DCI Format 1A 时,釆用第一个 CSI进程对应的小区的特殊子帧配置信令接收所述 PDSCH。
优选地, 所述终端若被配置为传输模式 10、 所述终端在 TDD特殊子帧 上釆用 DMRS接收 PDSCH、且所述 PDSCH对应的 DCI格式为 DCI Format 1A 时, 釆用第一个 CSI进程对应的小区的特殊子帧配置信令接收所述 PDSCH。
优选地, 所述终端若配置为传输模式 10并且所述终端在 TDD特殊子帧 上釆用 EPDCCH接收所述下行控制信息时,所述终端釆用所在服务小区的特 殊子帧配置接收所述 EPDCCH。
优选地, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子 帧上釆用 EPDCCH接收所述下行控制信息时,所述终端釆用第一个 EPDCCH 簇对应的特殊子帧配置接收所述 EPDCCH。
优选地, 包括: 所述终端预先接收所述基站向本终端下发的 DCI; 其中, 所述 DCI中的至少部分信息用于指示所述基站向本终端发送的数据所使用的 NZP CSI-RS配置或者 CSI进程配置;所述终端通过所述 NZP CSI-RS配置或 者 CSI进程配置对应的 TDD特殊子帧配置信令获得在当前子帧接收数据所 釆用的 TDD特殊子帧配置。
优选地,所述 DCI中的所述至少部分信息比特为下行共享信道资源元素 映射和准共址指示 (PQI ) 比特。
优选地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输。
优选地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号 数目差大于 N(N>0)时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给 所述终端进行数据传输。 此外, 本发明还提供了一种基站, 包括:
存储模块, 设置为: 保存特定规则; 其中, 所述特定规则预配置在所述 存储模块上或者由发送模块预先通过高层信令指示给所述终端; 发送模块, 设置为: 按照所述存储模块中保存的所述特定规则在时分双 工 (TDD )特殊子帧上向服务范围内的终端发送数据和 /或下行控制信息; 其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
优选地, 所述存储模块还设置为: 保存预先为所述终端通过高层信令配 置的一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配置, 其中 每一套 NZP CSI-RS配置与一套 TDD特殊子帧配置信令——对应;其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送数据。
优选地, 所述存储模块还设置为: 保存有预先为所述终端通过高层信令 配置的一个以上的信道状态信息 (CSI )进程, 其中每一个 CSI进程与一套 TDD特殊子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以 下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送数据。 优选地, 所述发送模块设置为: 按照所述存储模块中保存的所述特定规 则在 TDD特殊子帧上向服务范围内的终端发送数据, 包括:
所述发送模块仅仅在第一个 NZP CSI-RS对应的小区发送数据; 或者, 所述发送模块仅仅在所述终端所在的服务小区发送数据或者按照所述服 务小区的 TDD特殊子帧配置向所述终端发送数据; 或者,
所述发送模块仅仅在第一个 CSI进程对应的小区发送数据。
优选地, 所述存储模块还设置为: 保存有预先为所述终端通过高层信令 配置的一个以上的增强物理下行控制信道(EPDCCH )簇, 及分别为每一个 EPDCCH簇配置的一套 TDD特殊子帧配置信令;其中所述 TDD特殊子帧配 置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送下行控制信息, 包括:
所述发送模块按照为第一个 EPDCCH簇配置的特殊子帧配置信令向服 务范围内的终端发送所述下行控制信息; 或者,
所述发送模块针对每一个 EPDCCH簇, 分别按照为该 EPDCCH簇配置 的 TDD特殊子帧配置信令在该 EPDCCH簇上发送所述下行控制信息;或者, 所述发送模块按照为所述终端所在的服务小区的 EPDCCH 簇配置的 TDD特殊子帧配置信令发送所述下行控制信息。
优选地, 所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上 向服务范围内的终端发送下行控制信息, 包括:
所述发送模块仅仅在第一个 EPDCCH簇对应的小区发送所述下行控制 信息; 或者, 所述发送模块在所述终端所在的服务小区对应的 EPDCCH簇上 发送所述下行控制信息。
优选地, 所述存储模块还设置为: 保存有预先为所述终端通过高层信令 配置的 N个特殊子帧配置信令;
所述发送模块还设置为: 通过下发的所述下行控制信息 (DCI ) 中的至 少部分信息比特的值向所述终端指示当前发送数据的子帧对应的 N个特殊子 帧配置信令中的一个特殊子帧配置信令; 其中, N为正整数;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送数据, 包括: 所述发送模块按照所述下行控制信息中信息比 特的值所指示的 TDD特殊子帧配置信令向所述终端发送物理下行共享信道 ( PDSCH ) 。
优选地, 所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上 向服务范围内的终端发送数据和 /或下行控制信息, 包括: 所述发送模块若判 断出所述终端被配置为特定传输模式、 DCI格式或者特定接收下行控制信息 模式, 则按照所述特定规则在 TDD特殊子帧上向所述终端发送数据和 /或下 行控制信息, 其中, 所述特定接收下行控制信息模式为 EPDCCH发送或者 PDCCH发送。
优选地,所述发送模块设置为:若判断出所述终端被配置为传输模式 10, 并且本基站在 TDD特殊子帧对所述终端釆用用于解调的参考信号 ( DMRS ) 传输 PDSCH时, 仅仅在所述终端所在的服务小区上发送所述 PDSCH。
优选地,所述发送模块设置为:若判断出所述终端被配置为传输模式 10、 对应的 DCI格式为 DCI Format 1A时, 仅仅在所述终端所在的服务小区上发 送所述 PDSCH。
优选地, 所述发送模块设置为: 若判断出所述终端被配置为传输模式 10 且本基站在 TDD 特殊子帧对所述终端釆用 DMRS 传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时,仅仅在第一个 NZP CSI-RS对 应的小区上发送所述 PDSCH, 或者, 所述终端被配置为传输模式 10且本基 站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH, 且所述 PDSCH对 应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 NZP CSI-RS对应的小区 上发送所述 PDSCH。
优选地,所述发送模块设置为:若判断出所述终端被配置为传输模式 10、 对应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 CSI进程对应的小区上 发送所述 PDSCH。
优选地, 所述发送模块设置为: 若判断出所述终端被配置为传输模式 10 且本基站在 TDD特殊子帧对所述终端釆用 EPDCCH传输下行控制信息, 仅 仅在所述终端所在的服务小区上发送所述 EPDCCH。
优选地, 所述发送模块设置为: 若判断出所述终端配置被为传输模式 10 且本基站在 TDD特殊子帧对终端釆用 EPDCCH传输下行控制信息时, 仅仅 在第一个 EPDCCH簇对应的小区上发送所述 EPDCCH。
优选地,所述发送模块预先通过下发的 DCI中的至少部分信息比特向所 述终端指示本基站向所述终端发送的数据所相关的 NZP CSI-RS 配置或者 CSI进程配置, 从而指示所述终端釆用所述 NZP CSI-RS配置或者 CSI进程 配置对应的 TDD特殊子帧配置接收数据。
优选地,所述 DCI中的所述至少部分信息比特为物理下行共享信道资源 元素映射和准共址指示 (PQI ) 比特。
优选地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输。
优选地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号 数目差大于 N(N>0)时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给 所述终端进行数据传输。
本发明还提供了一种终端, 包括:
存储模块, 设置为: 存储特定规则; 其中, 所述特定规则预配置在所述 存储模块中或者是预先通过接收模块接收基站发来的高层信令获知的;
接收模块, 设置为: 按照所述存储模块中存储的所述特定规则在时分双 工 (TDD )特殊子帧上接收基站发来的数据和 /或下行控制信息; 其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
优选地, 所述接收模块还设置为: 预先接收所述基站为本终端通过高层 信令配置的一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配置 以及与每套 NZP CSI-RS——对应的 TDD特殊子帧配置信令,并保存到所述 存储模块中;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的数据; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多 项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置。
优选地, 所述接收模块还设置为: 预先接收所述基站为本终端通过高层 信令配置的一个以上的信道状态信息 (CSI )进程以及与每一个 CSI进程一 一对应的 TDD特殊子帧配置信令,并保存到所述存储模块中;其中所述 TDD 特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的数据。
优选地, 所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上 接收基站发来的数据, 包括:
所述接收模块在本终端所在的服务小区接收所述数据; 或者,
所述接收模块按照本终端所在的服务小区的 TDD特殊子帧配置信令接 收所述数据; 或者,
所述接收模块在第一个 NZP CSI-RS对应小区接收所述数据; 或者, 所述接收模块仅仅在第一个 CSI进程对应的小区接收所述数据。
优选地, 所述接收模块还设置为: 预先接收所述基站为本终端通过高层 信令配置的一个以上的增强物理下行控制信道(EPDCCH )簇以及分别为每 一个 EPDCCH簇配置的一套 TDD特殊子帧配置信令, 并保存到所述存储模 块中; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组 合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的下行控制信息,包括:所述接收模块按照当前 EPDCCH簇对应的 TDD 特殊子帧配置信令接收所述下行控制信息。
优选地, 所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上 接收基站发来的下行控制信息, 包括: 所述接收模块用于按照本终端所在服 务小区对应的 TDD特殊子帧配置信令接收 EPDCCH簇中的下行控制信息。
优选地, 所述接收模块还设置为: 预先接收所述基站为本终端通过高层 信令配置的 N个特殊子帧配置信令以及所述下行控制信息(DCI ) ;其中, 所 述 DCI中的至少部分信息比特的值用于指示所述基站当前发送数据的子帧对 应的 N个特殊子帧配置信令中的一个特殊子帧配置信令;其中, N为正整数; 所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的下行控制信息, 包括: 所述接收模块按照接收到的所述 DCI中的信息 比特的值所指示的 TDD特殊子帧配置信令接收所述数据。
优选地, 所述接收模块设置为: 按照特定规则在 TDD特殊子帧上接收 基站发来的数据和 /或下行控制信息, 包括: 所述接收模块在本终端被配置为 特定传输模式、 DCI格式或者特定接收下行控制信息的模式时, 按照特定规 则在 TDD特殊子帧上接收基站发来的数据和 /或下行控制信息。
优选地,所述接收模块设置为:在本终端被配置为传输模式 10并且本终 端在 TDD特殊子帧釆用用于解调的参考信号(DMRS )接收 PDSCH时, 釆 用本终端所在的服务小区的特殊子帧配置接收所述 PDSCH。
优选地, 所述接收模块设置为: 在本终端若被配置为传输模式 10、 在
TDD特殊子帧釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A 时, 釆用本终端所在的服务小区的特殊子帧配置接收所述 PDSCH0
优选地,所述接收模块设置为:在所述终端被配置为传输模式 10并且所 述终端在 TDD特殊子帧釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时, 釆用第一个 NZP CSI-RS对应的小区的特殊 子帧配置信令接收所述 PDSCH。
优选地, 所述接收模块设置为: 在本终端被配置为传输模式 10、 本终端 在 TDD特殊子帧上釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI 格式为 DCI Format 1A时, 釆用第一个 CSI进程对应的小区的特殊子帧配置 信令接收所述 PDSCH。
优选地,所述接收模块设置为:在本终端被配置为传输模式 10并且本终 端在 TDD特殊子帧上釆用 EPDCCH接收所述下行控制信息时, 釆用所在服 务小区的特殊子帧配置接收所述 EPDCCH。
优选地,所述接收模块设置为:在本终端被配置为传输模式 10并且本终 端在 TDD特殊子帧上釆用 EPDCCH接收所述下行控制信息时, 釆用第一个 EPDCCH簇对应的特殊子帧配置接收所述 EPDCCH。
优选地, 包括: 所述接收模块预先接收所述基站向本终端下发的 DCI; 其中, 所述 DCI中的至少部分信息用于指示所述基站向本终端发送的数据所 使用的 NZP CSI-RS配置或者 CSI进程配置; 所述接收模块还用于通过所述 NZP CSI-RS配置或者 CSI进程配置对应的 TDD特殊子帧配置获得在当前子 帧接收数据所釆用的 TDD特殊子帧配置。
优选地,所述 DCI中的所述至少部分信息比特为下行共享信道资源元素 映射和准共址指示 (PQI ) 比特。
本发明实施例在解决了在 TDD特殊子帧上进行多点协作传输时的接收 错误问题的同时, 尽量保证所有的 TDD特殊子帧都可以用于多点协作传输, 减少了基站的调度限制。
附图概述
图 1 为相关技术中 Macro和 Pico节点不同覆盖要求示意图;
图 2 ( a )和 2 ( b )分别为相关技术中宏站和微基站 TDD 子帧配置和特 殊子帧配置;
图 3为相关技术中釆用特殊子帧配置 1时的 DMRS图样;
图 4为相关技术中釆用特殊子帧配置 4时的 DMRS图样;
图 5为本发明实施例中基站的结构示意图。
本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
在本实施例中, 一种数据和控制信息的发送方法, 包括:
基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数据和 / 或下行控制信息; 所述特定规则预配置在所述基站上或者由所述基站预先通 过高层信令指示给所述终端;
其中, 所述终端所在的服务小区当前与一个或者一个以上的其他小区进 行多点协作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。 较佳地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置一套以上的非零功率信道状 态信息参考信号 ( Noe Zero Power Channel State Information Reference Signal, 简称为 NZP CSI-RS ) 配置, 其中每一套 NZP CSI-RS配置与一套 TDD特殊 子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以下任意一 项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据, 具体包括:
所述基站按照第一个 NZP CSI-RS对应的 TDD特殊子帧配置向所述终端 发送数据。
较佳地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置一个以上的信道状态信息 ( CSI )进程,其中每一个 CSI进程与一套 TDD特殊子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据, 具体包括: 所述基站按照第一个 CSI进程对应的 TDD特殊子帧配置向 所述终端发送数据。
较佳地, 所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终 端发送数据, 包括:
所述基站仅仅在第一个 NZP CSI-RS对应的小区发送数据; 或者, 所述基站仅仅在所述终端所在的服务小区发送数据或者按照所述服务小 区的 TDD特殊子帧配置向所述终端发送数据; 或者,
所述基站仅仅在第一个 CSI进程对应的小区发送数据。
较佳地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置一个以上的增强物理下行控 制信道( EPDCCH )簇, 并分别为每一个 EPDCCH簇配置一套 TDD特殊子 帧配置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多 项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送下 行控制信息, 具体包括:
所述基站在 TDD特殊子帧按照为第一个 EPDCCH簇配置的特殊子帧配 置信令向服务范围内的终端发送所述下行控制信息; 或者,
针对每一个 EPDCCH簇, 所述基站分别按照为该 EPDCCH簇配置的 TDD特殊子帧配置信令在该 EPDCCH簇上发送所述下行控制信息; 或者, 所述基站在 TDD特殊子帧按照为所述终端所在的服务小区的 EPDCCH 簇配置的 TDD特殊子帧配置信令发送所述下行控制信息。
较佳地, 所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终 端发送下行控制信息, 具体包括: 所述基站仅仅在第一个 EPDCCH簇对应的小区发送所述下行控制信息; 或者,
所述基站在所述终端所在的服务小区对应的 EPDCCH簇上发送所述下 行控制信息。
较佳地, 所述方法还包括:
所述基站预先为所述终端通过高层信令配置 N个特殊子帧配置信令,并 通过下发的所述下行控制信息 (DCI ) 中的至少部分信息比特的值向所述终 端指示当前发送数据的子帧对应的 N个特殊子帧配置信令中的一个特殊子帧 配置信令; 其中, N为正整数;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据, 具体包括: 所述基站按照所述下行控制信息中信息比特的值所指示的 TDD特殊子帧配置信令向所述终端发送物理下行共享信道(PDSCH ) 。
较佳地, 所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终 端发送数据和 /或下行控制信息, 包括: 所述基站若判断出所述终端被配置为 特定传输模式、 DCI格式或者特定接收下行控制信息模式, 则按照特定规则 在 TDD特殊子帧上向所述终端发送数据和 /或下行控制信息, 所述特定接收 下行控制信息模式为 EPDCCH发送或者 PDCCH发送。
较佳地, 所述基站若判断出所述终端被配置为传输模式 10, 并且所述基 站在 TDD 特殊子帧对所述终端釆用用于解调的参考信号 (DMRS )传输 PDSCH时, 所述基站仅仅在所述终端所在的服务小区上发送所述 PDSCH。
较佳地, 所述基站若判断出所述终端被配置为传输模式 10、 所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时, 所述基站仅仅在所述终端所在的服务小区上 发送所述 PDSCH。
较佳地,所述基站若判断出所述终端被配置为传输模式 10且所述基站在
TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时, 仅仅在第一个 NZP CSI-RS对应的小区上发 送所述 PDSCH。 较佳地, 所述基站若判断出所述终端被配置为传输模式 10、 所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时, 仅仅在第一个 CSI进程对应的小区上发送所 述 PDSCH。
较佳地,所述基站若判断出所述终端被配置为传输模式 10且所述基站在
TDD特殊子帧对所述终端釆用 EPDCCH传输下行控制信息时, 仅仅在所述 终端所在的服务小区上发送所述 EPDCCH。
较佳地,所述基站若判断出所述终端配置被为传输模式 10且所述基站在 TDD 特殊子帧对终端釆用 EPDCCH传输下行控制信息时, 仅仅在第一个 EPDCCH簇对应的小区上发送所述 EPDCCH。
较佳地, 具体包括:
所述基站预先通过下发的 DCI中的至少部分信息比特向所述终端指示本 基站向所述终端发送的数据所相关的 NZP CSI-RS配置或者 CSI进程配置, 指示所述终端釆用所述 NZP CSI-RS配置或者 CSI进程配置对应的 TDD特殊 子帧配置信令接收数据。
较佳地,所述 DCI中的所述至少部分信息比特为物理下行共享信道资源 元素映射和准共址指示 (PQI ) 比特。
较佳地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输。
较佳地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号 数目差大于 N时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输, 其中, N为正整数。
相应地, 一种数据和控制信息的接收方法, 包括:
终端按照特定规则在时分双工(TDD )特殊子帧上接收基站发来的数据 和 /或下行控制信息; 所述特定规则预配置在所述终端上, 或者是预先通过接 收基站发来的高层信令获知的; 其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
较佳地, 所述方法还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一套以上的非 零功率信道状态信息参考信号 (NZP CSI-RS ) 配置以及与每套 NZP CSI-RS ——对应的 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包括 以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据。
较佳地, 所述方法还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一个以上的信 道状态信息( CSI )进程以及与每一个 CSI进程——对应的 TDD特殊子帧配 置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的 组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据, 具体 包括:
所述终端按照第一个 CSI进程对应的 TDD特殊子帧配置接收所述数据。 较佳地, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数 据, 具体包括:
所述终端在本终端所在的服务小区接收所述数据; 或者,
所述终端按照本终端所在的服务小区的 TDD特殊子帧配置信令接收所 述数据; 或者,
所述终端在第一个 NZP CSI-RS对应小区接收所述数据; 或者, 所述终端仅仅在第一个 CSI进程对应的小区接收所述数据。 。
较佳地, 所述方法还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一个以上的增 强物理下行控制信道( EPDCCH )簇以及分别为每一个 EPDCCH簇配置的一 套 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包括以下任意 一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下行控制信 息, 具体包括:
所述终端按照当前 EPDCCH簇对应的 TDD特殊子帧配置信令接收所述 下行控制信息。
较佳地, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下 行控制信息, 具体包括:
所述终端按照本终端所在服务小区对应的 TDD特殊子帧配置信令接收 EPDCCH簇中的下行控制信息。
较佳地, 所述方法还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的 N个特殊子帧 配置信令以及所述下行控制信息( DCI ); 其中, 所述 DCI中的至少部分信 息比特的值用于指示所述基站当前发送数据的子帧对应的 N个特殊子帧配置 信令中的一个特殊子帧配置信令; 其中, N为正整数;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下行数据信 息, 具体包括: 所述终端按照接收到的所述 DCI中的信息比特的值所指示的 TDD特殊子帧配置信令接收所述数据。
较佳地, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数 据和 /或下行控制信息, 具体包括: 所述终端在被配置为特定传输模式、 DCI 格式或者特定接收下行控制信息的模式时, 按照特定规则在 TDD特殊子帧 上接收基站发来的数据和 /或下行控制信息。
较佳地, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子 帧釆用用于解调的参考信号 (DMRS )接收 PDSCH 时, 釆用本终端所在的 服务小区的特殊子帧配置接收所述 PDSCH。
较佳地,所述终端若被配置为传输模式 10、在 TDD特殊子帧釆用 DMRS 接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 釆用本 终端所在的服务小区的特殊子帧配置接收所述 PDSCH。
较佳地, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子 帧釆用 DMRS接收 PDSCH、且所述 PDSCH对应的 DCI格式为 DCI Format 1A 时,釆用第一个 CSI进程对应的小区的特殊子帧配置信令接收所述 PDSCH。
较佳地, 所述终端若被配置为传输模式 10、 所述终端在 TDD特殊子帧 上釆用 DMRS接收 PDSCH、且所述 PDSCH对应的 DCI格式为 DCI Format 1A 时, 釆用第一个 CSI进程对应的小区的特殊子帧配置信令接收所述 PDSCH。
较佳地, 所述终端若配置为传输模式 10并且所述终端在 TDD特殊子帧 上釆用 EPDCCH接收所述下行控制信息时,所述终端釆用所在服务小区的特 殊子帧配置接收所述 EPDCCH。
较佳地, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子 帧上釆用 EPDCCH接收所述下行控制信息时,所述终端釆用第一个 EPDCCH 簇对应的特殊子帧配置接收所述 EPDCCH。
较佳地, 具体包括: 所述终端预先接收所述基站向本终端下发的 DCI; 其中, 所述 DCI中的至少部分信息用于指示所述基站向本终端发送的数据所 使用的 NZP CSI-RS配置或者 CSI进程配置;所述终端通过所述 NZP CSI-RS 配置或者 CSI进程配置对应的 TDD特殊子帧配置信令获得在当前子帧接收 数据所釆用的 TDD特殊子帧配置。
较佳地,所述 DCI中的所述至少部分信息比特为下行共享信道资源元素 映射和准共址指示 (PQI ) 比特。 较佳地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输。
较佳地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号 数目差大于 N(N>0)时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给 所述终端进行数据传输。
此外, 本发明还提供了一种基站, 如图 5所示, 包括:
存储模块, 用于保存特定规则; 其中, 所述特定规则预配置在所述存储 模块上或者由发送模块预先通过高层信令指示给所述终端;
所述发送模块, 用于按照所述存储模块中保存的所述特定规则在时分双 工 (TDD )特殊子帧上向服务范围内的终端发送数据和 /或下行控制信息; 其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
较佳地, 所述存储模块还用于保存预先为所述终端通过高层信令配置的 一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配置, 其中每一 套 NZP CSI-RS配置与一套 TDD特殊子帧配置信令——对应;其中所述 TDD 特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息; 所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块用于按照所述特定规则在 TDD特殊子帧上向服务范围内 的终端发送数据, 具体包括:
所述发送模块用于按照所述存储模块中保存的第一个 NZP CSI-RS对应 的 TDD特殊子帧配置向所述终端发送数据。
较佳地, 所述存储模块中还保存有预先为所述终端通过高层信令配置的 一个以上的信道状态信息(CSI )进程, 其中每一个 CSI进程与一套 TDD特 殊子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以下任意 一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块用于按照所述特定规则在 TDD特殊子帧上向服务范围内 的终端发送数据, 具体包括: 所述发送模块用于按照所述存储模块中保存的 第一个 CSI进程对应的 TDD特殊子帧配置信令向所述终端发送数据。
较佳地, 所述发送模块用于按照所述存储模块中保存的所述特定规则在 TDD特殊子帧上向服务范围内的终端发送数据, 具体包括:
所述发送模块用于仅仅在第一个 NZP CSI-RS对应的小区发送数据; 或 者,
所述发送模块用于仅仅在所述终端所在的服务小区发送数据或者按照所 述服务小区的 TDD特殊子帧配置信令向所述终端发送数据; 或者,
所述发送模块用于仅仅在第一个 CSI进程对应的小区发送数据。
较佳地, 所述存储模块中还保存有预先为所述终端通过高层信令配置的 一个以上的增强物理下行控制信道(EPDCCH )簇,及分别为每一个 EPDCCH 簇配置的一套 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包 括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块用于按照所述特定规则在 TDD特殊子帧上向服务范围内 的终端发送下行控制信息, 具体包括:
所述发送模块用于按照为第一个 EPDCCH簇配置的特殊子帧配置信令 向服务范围内的终端发送所述下行控制信息; 或者,
所述发送模块用于针对每一个 EPDCCH簇, 分别按照为该 EPDCCH簇 分配的 TDD特殊子帧配置在该 EPDCCH簇上发送所述下行控制信息;或者, 所述发送模块用于按照为所述终端所在的服务小区的 EPDCCH簇配置 的 TDD特殊子帧配置信令发送所述下行控制信息。
较佳地, 所述发送模块用于按照所述特定规则在 TDD特殊子帧上向服 务范围内的终端发送下行控制信息, 具体包括:
所述发送模块用于仅仅在第一个 EPDCCH簇对应的小区发送所述下行 控制信息; 或者,
所述发送模块用于在所述终端所在的服务小区对应的 EPDCCH簇上发 送所述下行控制信息。
较佳地, 所述存储模块中还保存有预先为所述终端通过高层信令配置的 N个特殊子帧配置信令;
所述发送模块还用于通过下发的所述下行控制信息 (DCI ) 中的至少部 分信息比特的值向所述终端指示当前发送数据的子帧对应的 N个特殊子帧配 置信令中的一个特殊子帧配置信令; 其中, N为正整数;
所述发送模块用于按照所述特定规则在 TDD特殊子帧上向服务范围内 的终端发送数据, 具体包括: 所述发送模块用于按照所述下行控制信息中信 息比特的值所指示的 TDD特殊子帧配置信令向所述终端发送物理下行共享 信道( PDSCH ) 。
较佳地, 所述发送模块用于按照所述特定规则在 TDD特殊子帧上向服 务范围内的终端发送数据和 /或下行控制信息, 具体包括:
所述发送模块用于若判断出所述终端被配置为特定传输模式、 DCI格式 或者特定接收下行控制信息模式, 则按照所述特定规则在 TDD特殊子帧上 向所述终端发送数据和 /或下行控制信息, 其中, 所述特定接收下行控制信息 模式为 EPDCCH发送或者 PDCCH发送。
较佳地, 所述发送模块用于若判断出所述终端被配置为传输模式 10, 并 且本基站在 TDD特殊子帧对所述终端釆用用于解调的参考信号 ( DMRS )传 输 PDSCH时, 仅仅在所述终端所在的服务小区上发送所述 PDSCH。
较佳地, 所述发送模块用于若判断出所述终端被配置为传输模式 10、 本 基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH 对应的 DCI格式为 DCI Format 1A时, 仅仅在所述终端所在的服务小区上发 送所述 PDSCH。
较佳地,所述发送模块用于若判断出所述终端被配置为传输模式 10且本 基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH 对应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 NZP CSI-RS对应的小 区上发送所述 PDSCH,或者,所述终端被配置为传输模式 10且本基站在 TDD 特殊子帧对所述终端釆用 DMRS传输 PDSCH, 且所述 PDSCH对应的 DCI 格式为 DCI Format 1A时, 仅仅在第一个 NZP CSI-RS对应的小区上发送所 述 PDSCH。
较佳地, 所述发送模块用于若判断出所述终端被配置为传输模式 10、 本 基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH 对应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 CSI进程对应的小区上 发送所述 PDSCH。
较佳地,所述发送模块用于若判断出所述终端被配置为传输模式 10且本 基站在 TDD特殊子帧对所述终端釆用 EPDCCH传输下行控制信息, 仅仅在 所述终端所在的服务小区上发送所述 EPDCCH。
较佳地,所述发送模块用于若判断出所述终端配置被为传输模式 10且本 基站在 TDD特殊子帧对终端釆用 EPDCCH传输下行控制信息时, 仅仅在第 一个 EPDCCH簇对应的小区上发送所述 EPDCCH。
较佳地, 具体包括:
所述发送模块预先通过下发的 DCI中的至少部分信息比特向所述终端指 示本基站向所述终端发送的数据所相关的 NZP CSI-RS配置或者 CSI进程配 置, 指示所述终端釆用所述 NZP CSI-RS配置或者 CSI进程配置对应的 TDD 特殊子帧配置接收数据。
较佳地,所述 DCI中的所述至少部分信息比特为物理下行共享信道资源 元素映射和准共址指示 (PQI ) 比特。
较佳地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输。
较佳地, 当配置给一个终端进行多点传输的多个节点具有不同的 TDD 特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号 数目差大于 N时, 基站预定义在对应的 TDD特殊子帧仅仅服务小区给所述 终端进行数据传输, 其中, N为正整数。
本发明还提供了一种终端, 包括:
存储模块, 用于存储特定规则; 其中, 所述特定规则预配置在所述存储 模块中或者是预先通过接收模块接收基站发来的高层信令获知的;
接收模块, 用于按照所述存储模块中存储的所述特定规则在时分双工 ( TDD )特殊子帧上接收基站发来的数据和 /或下行控制信息; ;
其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
较佳地, 所述接收模块还用于预先接收所述基站为本终端通过高层信令 配置的一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配置以及 与每套 NZP CSI-RS——对应的 TDD特殊子帧配置信令,并保存到所述存储 模块中; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的 组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述接收模块用于按照所述特定规则在 TDD特殊子帧上接收基站发来 的数据, 具体包括: 所述接收模块用于按照第一个 NZP CSI-RS对应的 TDD 特殊子帧配置接收所述数据。
较佳地, 所述接收模块还用于预先接收所述基站为本终端通过高层信令 配置的一个以上的信道状态信息 (CSI )进程以及与每一个 CSI进程——对 应的 TDD特殊子帧配置信令, 并保存到所述存储模块中; 其中所述 TDD特 殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述接收模块用于按照所述特定规则在 TDD特殊子帧上接收基站发来 的数据, 具体包括: 所述接收模块用于按照第一个 CSI进程对应的 TDD特 殊子帧配置接收所述数据。
较佳地, 所述接收模块用于按照所述特定规则在 TDD特殊子帧上接收 基站发来的数据, 具体包括:
所述接收模块用于在本终端所在的服务小区接收所述数据; 或者, 所述接收模块用于按照本终端所在的服务小区的 TDD特殊子帧配置信 令接收所述数据; 或者,
所述接收模块用于在第一个 NZP CSI-RS对应小区接收所述数据; 或者, 所述接收模块用于仅仅在第一个 CSI进程对应的小区接收所述数据。 。 较佳地, 所述接收模块还用于预先接收所述基站为本终端通过高层信令 配置的一个以上的增强物理下行控制信道(EPDCCH )簇以及分别为每一个 EPDCCH簇配置的一套 TDD特殊子帧配置信令,并保存到所述存储模块中; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述接收模块用于按照所述特定规则在 TDD特殊子帧上接收基站发来 的下行控制信息,具体包括: 所述接收模块用于按照当前 EPDCCH簇对应的 TDD特殊子帧配置信令接收所述下行控制信息。
较佳地, 所述接收模块用于按照所述特定规则在 TDD特殊子帧上接收 基站发来的下行控制信息, 具体包括: 所述接收模块用于按照本终端所在服 务小区对应的 TDD特殊子帧配置信令接收 EPDCCH簇中的下行控制信息。
较佳地, 所述接收模块还用于预先接收所述基站为本终端通过高层信令 配置的 N个特殊子帧配置信令以及所述下行控制信息(DCI ); 其中, 所述 DCI中的至少部分信息比特的值用于指示所述基站当前发送数据的子帧对应 的 N个特殊子帧配置信令中的一个特殊子帧配置信令; 其中, N为正整数; 所述接收模块用于按照所述特定规则在 TDD特殊子帧上接收基站发来 的下行控制信息, 具体包括: 所述接收模块用于按照接收到的所述 DCI中的 信息比特的值所指示的 TDD特殊子帧配置信令接收所述数据。
较佳地, 所述接收模块用于按照特定规则在 TDD特殊子帧上接收基站 发来的数据和 /或下行控制信息, 具体包括: 所述接收模块用于在本终端被配 置为特定传输模式、 DCI格式或者特定接收下行控制信息的模式时, 按照特 定规则在 TDD特殊子帧上接收基站发来的数据和 /或下行控制信息。
较佳地,所述接收模块用于在本终端被配置为传输模式 10并且本终端在 TDD特殊子帧釆用用于解调的参考信号 (DMRS )接收 PDSCH时, 釆用本 终端所在的服务小区的特殊子帧配置接收所述 PDSCH。
较佳地, 所述接收模块用于在本终端若被配置为传输模式 10、 在 TDD 特殊子帧釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1A时,釆用本终端所在的服务小区的特殊子帧配置接收所述 PDSCH。
较佳地,所述接收模块用于在所述终端被配置为传输模式 10并且所述终 端在 TDD特殊子帧釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI 格式为 DCI Format 1A时, 釆用第一个 NZP CSI-RS对应的小区的特殊子帧 配置信令接收所述 PDSCH。
较佳地, 所述接收模块用于在本终端被配置为传输模式 10、 本终端在 TDD特殊子帧上釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式 为 DCI Format 1A时, 釆用第一个 CSI进程对应的小区的特殊子帧配置信令 接收所述 PDSCH。
较佳地,所述接收模块用于在本终端被配置为传输模式 10并且本终端在 TDD特殊子帧上釆用 EPDCCH接收所述下行控制信息时, 釆用所在服务小 区的特殊子帧配置接收所述 EPDCCH。
较佳地,所述接收模块用于在本终端被配置为传输模式 10并且本终端在 TDD 特殊子帧上釆用 EPDCCH接收所述下行控制信息时, 釆用第一个 EPDCCH簇对应的特殊子帧配置接收所述 EPDCCH。
较佳地, 所述接收模块预先接收所述基站向本终端下发的 DCI; 其中, 所述 DCI中的至少部分信息用于指示所述基站向本终端发送的数据所使用的 NZP CSI-RS 配置或者 CSI 进程配置; 所述接收模块还用于通过所述 NZP CSI-RS配置或者 CSI进程配置对应的 TDD特殊子帧配置获得在当前子帧接 收数据所釆用的 TDD特殊子帧配置。
较佳地,所述 DCI中的所述至少部分信息比特为下行共享信道资源元素 映射和准共址指示 (PQI ) 比特。 下面用几个应用示例对本发明进行进一步说明。 需要说明的是, 在下述 各应用示例中, 终端在进行数据接收前, 可先判别对应的接收数据的子帧是 否是 TDD特殊子帧, 如果是, 则按照对应的 TDD特殊子帧配置进行数据接 收, 否则可以按照普通子帧的配置进行接收。 具体的, 终端可以通过接收上 下行子帧配置索引来判断对应子帧是否是特殊子帧。
应用示例一:
当基站判断出终端被配置为传输模式 10时, 并且基站在 TDD特殊子帧 对终端釆用 DMRS传输 PDSCH时, 基站仅仅在该终端所在的服务小区上发 送所述 PDSCH。
当终端被配置为传输模式 10 时, 并且在特殊子帧釆用 DMRS 接收
PDSCH时, 终端釆用所在服务小区的 TDD特殊子帧配置接收该 PDSCH。
应用示例二: 当多个协作小区的 TDD特殊子帧配置不同、 基站判断出终端被配置为 传输模式 10、并且基站在 TDD特殊子帧对终端釆用 DMRS传输 PDSCH时, 基站仅仅在该终端所在的服务小区上发送所述 PDSCH。
当终端被配置为传输模式 10 时, 并且在特殊子帧釆用 DMRS 接收 PDSCH时, 终端釆用所在服务小区的特殊子帧配置接收所述 PDSCH。
或者,
当多个协作小区的 TDD特殊子帧配置不完全相同、 基站判断出终端被 配置为传输模式 10、 并且基站在 TDD 特殊子帧对终端釆用 DMRS 传输 PDSCH时, 基站仅仅在与该终端所在的服务小区 TDD特殊子帧配置相同的 节点上发送所述 PDSCH。
当终端被配置为传输模式 10 时, 并且在特殊子帧釆用 DMRS 接收 PDSCH时, 终端釆用所在服务小区的特殊子帧配置接收所述 PDSCH。
或者,
当多个协作小区的 TDD特殊子帧配置不完全相同、 基站判断出终端被 配置为传输模式 10、 并且基站在 TDD 特殊子帧对终端釆用 DMRS 传输 PDSCH时,基站仅仅在与该终端所在的服务小区 TDD特殊子帧配置 DwPTS 对应的 OFDM符号差小于 N ( N>0 ) 的节点上发送所述 PDSCH。 当终端被配置为传输模式 10 时, 并且在特殊子帧釆用 DMRS 接收 PDSCH时, 终端釆用所在服务小区的特殊子帧配置接收所述 PDSCH。
应用示例三:
当基站判断出终端被配置为传输模式 10、 基站在 TDD特殊子帧对该终 端釆用 DMRS传输 PDSCH时、 且该 PDSCH对应的 DCI ( Downlink Control Information, 下行控制信息)格式为 DCI Format 1A时, 基站仅仅在该终端 所在的服务小区上发送所述 PDSCH。
当终端被配置为传输模式 10、 在特殊子帧釆用 DMRS接收 PDSCH、 且 该 PDSCH对应的 DCI格式为 DCI Format 1A时, 终端釆用所在服务小区的 特殊子帧配置接收所述 PDSCH。
应用示例四:
当基站判断出所述终端被配置为传输模式 10, 并且基站在 TDD特殊子 帧对终端釆用 DMRS传输 PDSCH、 且该 PDSCH对应的 DCI格式为 DCI Format 1A 时, 基站仅仅在第一个 NZP CSI-RS 对应的小区上发送所述 PDSCH0
当终端被配置为传输模式 10 时, 并且终端在 TDD 特殊子帧上釆用 DMRS接收 PDSCH、且该 PDSCH对应的 DCI格式为 DCI Format 1 A时, 该 终端釆用第一个 NZP CSI-RS 对应的小区的 TDD 特殊子帧配置接收所述 PDSCH0
应用示例五
当基站判断出将终端配置为传输模式 10、 本基站在 TDD特殊子帧对终 端釆用 DMRS传输 PDSCH、且该 PDSCH对应的 DCI格式为 DCI Format 1A 时, 基站仅仅在第一个 CSI进程对应的小区上发送 PDSCH。 当终端被配置为传输模式 10、 所述终端在 TDD特殊子帧上釆用 DMRS 接收 PDSCH、 且 PDSCH对应的 DCI格式为 DCI Format 1A时 , 终端釆用第 一个 CSI进程对应的小区的特殊子帧配置接收 PDSCH。
应用示例六
当基站判断出终端被配置为传输模式 10、 并且该基站在 TDD特殊子帧 对终端釆用 EPDCCH ( Enhanced Physical Downlink Control Channel, 增强物 理下行控制信道)传输下行控制信息时, 基站仅仅在该终端所在的服务小区 上发送所述 EPDCCH。
当终端被配置为传输模式 10且该终端在 TDD特殊子帧上釆用 EPDCCH 接收下行控制信息时, 该终端釆用所在服务小区的特殊子帧配置接收所述 EPDCCH。
应用示例七
当基站判断出终端被配置为传输模式 10时且基站在 TDD特殊子帧对终 端釆用 EPDCCH传输下行控制信息时, 该基站仅仅在第一个 EPDCCH簇对 应的小区上发送所述 EPDCCH。
当终端被配置为传输模式 10 并且本终端在 TDD 特殊子帧上釆用 EPDCCH接收下行控制信息时, 该终端釆用第一个 EPDCCH簇对应的 TDD 特殊子帧配置接收所述 EPDCCH。
应用示例八
基站通过高层信令为终端配置 N(N > 0)个 TDD特殊子帧配置,当在 TDD 特殊子帧发送 PDSCH时,利用 DCI中的至少部分比特(如 1比特或 2比特 ) 向终端指示本基站在当前釆用的是 N 个 TDD 特殊子帧中的哪一种传输 PDSCH0
终端通过高层信令获得 N(N > 0)个 TDD特殊子帧配置, 当本终端接收 PDSCH时,利用 DCI中的至少部分比特确定要使用基站当前釆用的 N个 TDD 特殊子帧配置中的哪一种来接收 PDSCH。
应用示例九
基站预先通过高层信令为终端配置 N(N > 0)个 EPDCCH簇,并分别为每 个 EPDCCH簇配置一套 TDD特殊子帧配置; 其中, 为不同 EPDCCH簇配置 的特殊子帧配置可以相同, 也可以不同;
终端通过高层信令获得配置的 N(N > 0)个 EPDCCH 簇, 其中每个 EPDCCH簇具有独立的特殊子帧配置, 所述终端在 TDD特殊子帧检测每个 EPDCCH簇时, 按照对应的特殊子帧配置检测所述 EPDCCH簇。
应用示例十
基站通过高层信令为终端配置 4个 TDD特殊子帧配置, 当在 TDD特殊 子帧发送 PDSCH时, 利用 DCI中的 PQI比特向终端指示本基站在当前釆用 的是 N(N > 0)个 TDD特殊子帧中的哪一种传输 PDSCH。其中, PQI比特和 4 个特殊子帧配置的对应关系如表 3所示。
终端通过高层信令获得 4个 TDD特殊子帧配置, 当本终端接收 PDSCH 时, 利用 DCI中的 PQI比特确定要使用基站当前釆用的 N(N > 0)个 TDD特 殊子帧配置中的哪一种来接收 PDSCH。
表 3 PQI比特和四个特殊子帧配置的对应关系
Figure imgf000040_0001
或者,
基站通过高层信令为终端配置 3个 TDD特殊子帧配置, 当在 TDD特殊 子帧发送 PDSCH时, 利用 DCI中的 PQI比特向终端指示本基站在当前釆用 的是 N(N > 0)个 TDD特殊子帧中的哪一种传输 PDSCH。其中, PQI比特和 4 个特殊子帧配置的对应关系如表 4所示。
终端通过高层信令获得 3个 TDD特殊子帧配置, 当本终端接收 PDSCH 时, 利用 DCI中的 PQI比特确定要使用基站当前釆用的 N(N > 0)个 TDD特 殊子帧配置中的哪一种来接收 PDSCH。
表 4 PQI比特和四个特殊子帧配置的对应关系
Figure imgf000041_0001
应用示例十一
基站预先为终端通过高层信令配置 1个以上的 NZP CSI-RS,需要保证配 置的 1个以上的 NZP CSI-RS独立配置对应的 TDD特殊子帧配置。
终端通过高层信令获得 1个以上的 NZP CSI-RS时, 终端认为配置的 1 个以上的 NZP CSI-RS独立配置对应的 TDD特殊子帧配置。
或者,
基站预先为终端通过高层信令配置 1个以上的 CSI进程, 需要保证配置 的 1个以上的 CSI进程独立配置对应的 TDD特殊子帧配置。
终端通过高层信令获得 1个以上的 CSI进程时, 终端认为配置的 1个以 上的 CSI进程独立配置对应的 TDD特殊子帧配置。
应用示例十二
基站为终端配置一个以上的 NZP CSI-RS , 并且分别为每个 NZP CSI-RS 配置一套 TDD特殊子帧配置。基站在 TDD特殊子帧上向该终端发送数据时, 通过 DCI中的 PQI比特中对应 NZP CSI-RS信息来指示终端接收 TDD特殊 子帧中的数据时应该釆用的 TDD特殊子帧配置。
终端通过接收高层信令获得一个以上的 NZP CSI-RS 配置以及对应的 TDD特殊子帧配置。终端在一个 TDD特殊子帧上接收数据时,通过检测 DCI 中的 PQI比特, 获得对应的 NZP CSI-RS的配置索引, 从而获得对应 NZP CSI-RS配置的 TDD特殊子帧配置, 按照该 TDD特殊子帧配置接收该 TDD 特殊子帧上的数据。
需要说明的是, EPDCCH ( Enhanced Power Control Channel, 增强功率 控制信道)和 PMCH ( Physical Multicast Channel, 物理多播信道)配置信息, 亦可釆用本实施例所述方法进行通知。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已, 并非用于限定本发明的保护范 围。 根据本发明的发明内容, 还可有其他多种实施例, 在不背离本发明精神 改变和变形, 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用 4生
本发明实施例在解决了在 TDD特殊子帧上进行多点协作传输时的接收 错误问题的同时, 尽量保证所有的 TDD特殊子帧都可以用于多点协作传输, 减少了基站的调度限制。

Claims

权 利 要 求 书
1、 一种数据和控制信息的发送方法, 包括:
基站按照特定规则在时分双工(TDD )特殊子帧上向服务范围内的终端 发送数据和 /或下行控制信息;所述特定规则预配置在所述基站上或者由所述 基站预先通过高层信令指示给所述终端;
其中, 所述终端所在的服务小区当前与一个或者一个以上的其他小区进 行多点协作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
2、 如权利要求 1所述的方法, 其中, 还包括: 所述基站预先为所述终端 通过高层信令配置一套以上的非零功率信道状态信息参考信号 (NZP CSI-RS )配置,其中每一套 NZP CSI-RS配置与一套 TDD特殊子帧配置信令 ——对应; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项 的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据。
3、 如权利要求 1所述的方法, 其中, 还包括:
所述基站预先为所述终端通过高层信令配置一个以上的信道状态信息 ( CSI )进程,其中每一个 CSI进程与一套 TDD特殊子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据。
4、 如权利要求 1所述的方法, 其中, 所述基站按照特定规则在 TDD特 殊子帧上向服务范围内的终端发送数据, 包括:
所述基站仅仅在第一个 NZP CSI-RS对应的小区发送数据; 或者, 所述基站仅仅在所述终端所在的服务小区发送数据或者按照所述服务小 区的 TDD特殊子帧配置向所述终端发送数据; 或者,
所述基站仅仅在第一个 CSI进程对应的小区发送数据。
5、 如权利要求 1所述的方法, 其中, 还包括:
所述基站预先为所述终端通过高层信令配置一个以上的增强物理下行控 制信道( EPDCCH )簇, 并分别为每一个 EPDCCH簇配置一套 TDD特殊子 帧配置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多 项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送下 行控制信息, 包括:
所述基站在 TDD特殊子帧按照为第一个 EPDCCH簇配置的特殊子帧配 置信令向服务范围内的终端发送所述下行控制信息; 或者,
针对每一个 EPDCCH簇, 所述基站分别按照为该 EPDCCH簇配置的 TDD特殊子帧配置信令在该 EPDCCH簇上发送所述下行控制信息; 或者, 所述基站在 TDD特殊子帧按照为所述终端所在的服务小区的 EPDCCH 簇配置的 TDD特殊子帧配置信令发送所述下行控制信息。
6、 如权利要求 1所述的方法, 其中, 所述基站按照特定规则在 TDD特 殊子帧上向服务范围内的终端发送下行控制信息, 包括:
所述基站仅仅在第一个 EPDCCH簇对应的小区发送所述下行控制信息; 或者,所述基站在所述终端所在的服务小区对应的 EPDCCH簇上发送所述下 行控制信息。
7、 如权利要求 1、 2或 3任一项所述的方法, 其中, 还包括:
所述基站预先为所述终端通过高层信令配置 N个特殊子帧配置信令,并 通过下发的所述下行控制信息 (DCI ) 中的至少部分信息比特的值向所述终 端指示当前发送数据的子帧对应的 N个特殊子帧配置信令中的一个特殊子帧 配置信令; 其中, N为正整数;
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据, 包括: 所述基站按照所述下行控制信息中信息比特的值所指示的 TDD 特殊子帧配置信令向所述终端发送物理下行共享信道(PDSCH ) 。
8、 如权利要求 1~6中任意一项所述的方法, 其中,
所述基站按照特定规则在 TDD特殊子帧上向服务范围内的终端发送数 据和 /或下行控制信息, 包括: 所述基站若判断出所述终端被配置为特定传输 模式、 DCI格式或者特定接收下行控制信息模式, 则按照特定规则在 TDD 特殊子帧上向所述终端发送数据和 /或下行控制信息,所述特定接收下行控制 信息模式为 EPDCCH发送或者 PDCCH发送。
9、 如权利要求 8所述的方法, 其中,
所述基站若判断出所述终端被配置为传输模式 10,并且所述基站在 TDD 特殊子帧对所述终端釆用用于解调的参考信号 (DMRS )传输 PDSCH 时, 所述基站仅仅在所述终端所在的服务小区上发送所述 PDSCH。
10、 如权利要求 8所述的方法, 其中, 所述基站若判断出所述终端被配 置为传输模式 10、 所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输
PDSCH, 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 所述基站仅 仅在所述终端所在的服务小区上发送所述 PDSCH。
11、 如权利要求 8所述的方法, 其中, 所述基站若判断出所述终端被配 置为传输模式 10且所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH, 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 仅仅在第一 个 NZP CSI-RS对应的小区上发送所述 PDSCH。
12、 如权利要求 8所述的方法, 其中, 所述基站若判断出所述终端被配 置为传输模式 10、 所述基站在 TDD特殊子帧对所述终端釆用 DMRS传输
PDSCH, 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 仅仅在第一 个 CSI进程对应的小区上发送所述 PDSCH。
13、 如权利要求 8所述的方法, 其中, 所述基站若判断出所述终端被配 置为传输模式 10且所述基站在 TDD特殊子帧对所述终端釆用 EPDCCH传输 下行控制信息时, 仅仅在所述终端所在的服务小区上发送所述 EPDCCH。
14、 如权利要求 8所述的方法, 其中, 所述基站若判断出所述终端配置 控制信息时, 仅仅在第一个 EPDCCH簇对应的小区上发送所述 EPDCCH。
15、如权利要求 2或 3所述的方法,其中,所述基站预先通过下发的 DCI 中的至少部分信息比特向所述终端指示本基站向所述终端发送的数据所相关 的 NZP CSI-RS配置或者 CSI进程配置,指示所述终端釆用所述 NZP CSI-RS 配置或者 CSI进程配置对应的 TDD特殊子帧配置信令接收数据。
16、 如权利要求 7或 15所述的方法, 其中, 所述 DCI中的所述至少部 分信息比特为物理下行共享信道资源元素映射和准共址指示 (PQI ) 比特。
17、 如权利要求 1所述的方法, 其中, 当配置给一个终端进行多点传输 的多个节点具有不同的 TDD特殊子帧配置时, 基站预定义在对应的 TDD特 殊子帧仅仅服务小区给所述终端进行数据传输。
18、 如权利要求 1所述的方法, 其中, 当配置给一个终端进行多点传输 的多个节点具有不同的 TDD特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号数目差大于 N时, 基站预定义在对应的 TDD特 殊子帧仅仅服务小区给所述终端进行数据传输, 其中, N为正整数。
19、 一种数据和控制信息的接收方法, 包括:
终端按照特定规则在时分双工(TDD )特殊子帧上接收基站发来的数据 和 /或下行控制信息; 所述特定规则预配置在所述终端上, 或者是预先通过接 收基站发来的高层信令获知的;
其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
20、 如权利要求 19所述的方法, 其中, 还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一套以上的非 零功率信道状态信息参考信号 (NZP CSI-RS ) 配置以及与每套 NZP CSI-RS ——对应的 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包括 以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据。
21、 如权利要求 19所述的方法, 其中, 还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一个以上的信 道状态信息( CSI )进程以及与每一个 CSI进程——对应的 TDD特殊子帧配 置信令; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的 组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据。
22、 如权利要求 19所述的方法, 其中, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据, 包括: 所述终端在本终端所在的服务小区接收所述数据; 或者,
所述终端按照本终端所在的服务小区的 TDD特殊子帧配置信令接收所 述数据; 或者,
所述终端在第一个 NZP CSI-RS对应小区接收所述数据; 或者, 所述终端仅仅在第一个 CSI进程对应的小区接收所述数据。
23、 如权利要求 19所述的方法, 其中, 还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的一个以上的增 强物理下行控制信道( EPDCCH )簇以及分别为每一个 EPDCCH簇配置的一 套 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包括以下任意 一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下行控制信 息, 包括: 所述终端按照当前 EPDCCH簇对应的 TDD特殊子帧配置信令接 收所述下行控制信息。
24、 如权利要求 19所述的方法, 其中, 所述终端按照特定规则在 TDD 特殊子帧上接收基站发来的下行控制信息, 包括: 所述终端按照本终端所在 服务小区对应的 TDD特殊子帧配置信令接收 EPDCCH簇中的下行控制信息。
25、 如权利要求 19、 23或 24所述的方法, 其中, 还包括:
所述终端预先接收所述基站为本终端通过高层信令配置的 N个特殊子帧 配置信令以及所述下行控制信息(DCI ); 其中, 所述 DCI中的至少部分信 息比特的值用于指示所述基站当前发送数据的子帧对应的 N个特殊子帧配置 信令中的一个特殊子帧配置信令; 其中, N为正整数; 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的下行数据信 息, 包括: 所述终端按照接收到的所述 DCI中的信息比特的值所指示的 TDD 特殊子帧配置信令接收所述数据。
26、 如权利要求 19、 20、 21、 23中任意一项所述的方法, 其中, 所述终端按照特定规则在 TDD特殊子帧上接收基站发来的数据和 /或下 行控制信息, 包括: 所述终端在被配置为特定传输模式、 DCI格式或者特定 接收下行控制信息的模式时, 按照特定规则在 TDD特殊子帧上接收基站发 来的数据和 /或下行控制信息。
27、 如权利要求 26 所述的方法, 其中, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子帧釆用用于解调的参考信号 (DMRS )接收
PDSCH时, 釆用本终端所在的服务小区的特殊子帧配置接收所述 PDSCH。
28、 如权利要求 26所述的方法, 其中,
所述终端若被配置为传输模式 10、 在 TDD特殊子帧釆用 DMRS接收 PDSCH, 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 釆用本终端 所在的服务小区的特殊子帧配置接收所述 PDSCH。
29、 如权利要求 26 所述的方法, 其中, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子帧釆用 DMRS接收 PDSCH时,且所述 PDSCH 对应的 DCI格式为 DCI Format 1 A时,釆用第一个 CSI进程对应的小区的特 殊子帧配置信令接收所述 PDSCH。
30、 如权利要求 26所述的方法, 其中,
所述终端若被配置为传输模式 10、 所述终端在 TDD 特殊子帧上釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI FormatlA时, 釆用第一个 CSI进程对应的小区的特殊子帧配置信令接收所述 PDSCH。
31、 如权利要求 26所述的方法, 其中, 所述终端若配置为传输模式 10 并且所述终端在 TDD特殊子帧上釆用 EPDCCH接收所述下行控制信息时, 所述终端釆用所在服务小区的特殊子帧配置接收所述 EPDCCH。
32、 如权利要求 26 所述的方法, 其中, 所述终端若被配置为传输模式 10并且所述终端在 TDD特殊子帧上釆用 EPDCCH接收所述下行控制信息 时, 所述终端釆用第一个 EPDCCH 簇对应的特殊子帧配置接收所述 EPDCCH。
33、 如权利要求 20或 21所述的方法, 其中,
所述终端预先接收所述基站向本终端下发的 DCI; 其中, 所述 DCI中的 至少部分信息用于指示所述基站向本终端发送的数据所使用的 NZP CSI-RS 配置或者 CSI进程配置; 所述终端通过所述 NZP CSI-RS配置或者 CSI进程 配置对应的 TDD特殊子帧配置信令获得在当前子帧接收数据所釆用的 TDD 特殊子帧配置。
34、 如权利要求 25或 33所述的方法, 其中, 所述 DCI中的所述至少部 分信息比特为下行共享信道资源元素映射和准共址指示 (PQI ) 比特。
35、如权利要求 19所述的方法, 其中, 当配置给一个终端进行多点传输 的多个节点具有不同的 TDD特殊子帧配置时, 基站预定义在对应的 TDD特 殊子帧仅仅服务小区给所述终端进行数据传输。
36、如权利要求 19所述的方法, 其中, 当配置给一个终端进行多点传输 的多个节点具有不同的 TDD特殊子帧配置时, 当两个 TDD特殊子帧配置的
DwPTS区域的 OFDM符号数目差大于 N时, 基站预定义在对应的 TDD特 殊子帧仅仅服务小区给所述终端进行数据传输, 其中, N为正整数。
37、 一种基站, 包括:
存储模块, 设置为: 保存特定规则; 其中, 所述特定规则预配置在所述 存储模块上或者由发送模块预先通过高层信令指示给所述终端;
所述发送模块, 设置为: 按照所述存储模块中保存的所述特定规则在时 分双工( TDD )特殊子帧上向服务范围内的终端发送数据和 /或下行控制信息; 其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
38、 如权利要求 37所述的基站, 其中,
所述存储模块还设置为: 保存预先为所述终端通过高层信令配置的一套 以上的非零功率信道状态信息参考信号 (NZP CSI-RS ) 配置, 其中每一套 NZP CSI-RS配置与一套 TDD特殊子帧配置信令——对应; 其中所述 TDD 特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 ( OFDM )符号 的终止位置;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送数据。
39、 如权利要求 37所述的基站, 其中,
所述存储模块还设置为: 保存有预先为所述终端通过高层信令配置的一 个以上的信道状态信息(CSI )进程, 其中每一个 CSI进程与一套 TDD特殊 子帧配置信令——对应; 其中所述 TDD特殊子帧配置信令包括以下任意一 项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送数据。
40、 如权利要求 37所述的基站, 其中,
所述发送模块设置为:按照所述存储模块中保存的所述特定规则在 TDD 特殊子帧上向服务范围内的终端发送数据, 包括:
所述发送模块仅仅在第一个 NZP CSI-RS对应的小区发送数据; 或者, 所述发送模块仅仅在所述终端所在的服务小区发送数据或者按照所述服 务小区的 TDD特殊子帧配置信令向所述终端发送数据; 或者,
所述发送模块仅仅在第一个 CSI进程对应的小区发送数据。
41、 如权利要求 37所述的基站, 其中,
所述存储模块还设置为: 保存有预先为所述终端通过高层信令配置的一 个以上的增强物理下行控制信道(EPDCCH )簇, 及分别为每一个 EPDCCH 簇配置的一套 TDD特殊子帧配置信令; 其中所述 TDD特殊子帧配置信令包 括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送下行控制信息, 包括:
所述发送模块按照为第一个 EPDCCH簇配置的特殊子帧配置信令向服 务范围内的终端发送所述下行控制信息; 或者,
所述发送模块针对每一个 EPDCCH簇, 分别按照为该 EPDCCH簇配置 的 TDD特殊子帧配置信令在该 EPDCCH簇上发送所述下行控制信息;或者, 所述发送模块按照为所述终端所在的服务小区的 EPDCCH 簇配置的 TDD特殊子帧配置信令发送所述下行控制信息。
42、 如权利要求 37所述的基站, 其中,
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送下行控制信息, 包括:
所述发送模块仅仅在第一个 EPDCCH簇对应的小区发送所述下行控制 信息; 或者, 所述发送模块在所述终端所在的服务小区对应的 EPDCCH簇上 发送所述下行控制信息。
43、 如权利要求 37、 41或 42所述的基站, 其中,
所述存储模块还设置为: 保存有预先为所述终端通过高层信令配置的 N 个特殊子帧配置信令; 所述发送模块还设置为: 通过下发的所述下行控制信息 (DCI ) 中的至 少部分信息比特的值向所述终端指示当前发送数据的子帧对应的 N个特殊子 帧配置信令中的一个特殊子帧配置信令; 其中, N为正整数;
所述发送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范 围内的终端发送数据, 包括: 所述发送模块按照所述下行控制信息中信息比 特的值所指示的 TDD特殊子帧配置信令向所述终端发送物理下行共享信道 ( PDSCH ) 。
44、 如权利要求 37、 38、 39、 41中任意一项所述的基站, 其中, 所述发 送模块设置为: 按照所述特定规则在 TDD特殊子帧上向服务范围内的终端 发送数据和 /或下行控制信息, 包括: 所述发送模块若判断出所述终端被配置 为特定传输模式、 DCI格式或者特定接收下行控制信息模式, 则按照所述特 定规则在 TDD特殊子帧上向所述终端发送数据和 /或下行控制信息, 其中, 所述特定接收下行控制信息模式为 EPDCCH发送或者 PDCCH发送。
45、 如权利要求 44所述的基站, 其中,
所述发送模块设置为: 若判断出所述终端被配置为传输模式 10, 并且本 基站在 TDD 特殊子帧对所述终端釆用用于解调的参考信号 (DMRS )传输 PDSCH时, 仅仅在所述终端所在的服务小区上发送所述 PDSCH。
46、 如权利要求 44所述的基站, 其中,
所述发送模块设置为: 若判断出所述终端被配置为传输模式 10、 本基站 在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应 的 DCI格式为 DCI Format 1A时, 仅仅在所述终端所在的服务小区上发送所 述 PDSCH。
47、 如权利要求 44所述的基站, 其中, 所述发送模块设置为: 若判断出 所述终端被配置为传输模式 10且本基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 NZP CSI-RS对应的小区上发送所述 PDSCH, 或者, 所述终端 被配置为传输模式 10且本基站在 TDD特殊子帧对所述终端釆用 DMRS传输 PDSCH, 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时 , 仅仅在第一 个 NZP CSI-RS对应的小区上发送所述 PDSCH。
48、 如权利要求 44所述的基站, 其中, 所述发送模块设置为: 若判断出 所述终端被配置为传输模式 10、 本基站在 TDD 特殊子帧对所述终端釆用 DMRS传输 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时, 仅仅在第一个 CSI进程对应的小区上发送所述 PDSCH。
49、 如权利要求 44所述的基站, 其中, 所述发送模块设置为: 若判断出 所述终端被配置为传输模式 10且本基站在 TDD特殊子帧对所述终端釆用 EPDCCH传输下行控制信息, 仅仅在所述终端所在的服务小区上发送所述 EPDCCH。
50、 如权利要求 44所述的基站, 其中, 所述发送模块设置为: 若判断出 所述终端配置被为传输模式 10 且本基站在 TDD 特殊子帧对终端釆用
EPDCCH传输下行控制信息时, 仅仅在第一个 EPDCCH簇对应的小区上发 送所述 EPDCCH。
51、 如权利要求 38或 39所述的基站, 其中, 包括:
所述发送模块预先通过下发的 DCI中的至少部分信息比特向所述终端指 示本基站向所述终端发送的数据所相关的 NZP CSI-RS配置或者 CSI进程配 置, 从而指示所述终端釆用所述 NZP CSI-RS配置或者 CSI进程配置对应的 TDD特殊子帧配置接收数据。
52、 如权利要求 43或 51所述的基站, 其中, 所述 DCI中的所述至少部 分信息比特为物理下行共享信道资源元素映射和准共址指示 (PQI ) 比特。
53、如权利要求 37所述的基站, 其中, 当配置给一个终端进行多点传输 的多个节点具有不同的 TDD特殊子帧配置时, 基站预定义在对应的 TDD特 殊子帧仅仅服务小区给所述终端进行数据传输。
54、如权利要求 37所述的基站, 其中, 当配置给一个终端进行多点传输 的多个节点具有不同的 TDD特殊子帧配置时, 当两个 TDD特殊子帧配置的 DwPTS区域的 OFDM符号数目差大于 N时, 基站预定义在对应的 TDD特 殊子帧仅仅服务小区给所述终端进行数据传输, 其中, N为正整数。
55、 一种终端, 包括:
存储模块, 设置为: 存储特定规则; 其中, 所述特定规则预配置在所述 存储模块中或者是预先通过接收模块接收基站发来的高层信令获知的; 接收模块, 设置为: 按照所述存储模块中存储的所述特定规则在时分双 工 (TDD )特殊子帧上接收基站发来的数据和 /或下行控制信息;
其中, 所述终端所在的服务小区当前与一个以上的其他小区进行多点协 作传输, 且相对于所述其他小区具有独立的 TDD特殊子帧配置。
56、 如权利要求 55所述的终端, 其中,
所述接收模块还设置为: 预先接收所述基站为本终端通过高层信令配置 的一套以上的非零功率信道状态信息参考信号(NZP CSI-RS )配置以及与每 套 NZP CSI-RS——对应的 TDD特殊子帧配置信令,并保存到所述存储模块 中;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的数据,
其中, 所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组 合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置。
57、 如权利要求 55所述的终端, 其中,
所述接收模块还设置为: 预先接收所述基站为本终端通过高层信令配置 的一个以上的信道状态信息 (CSI )进程以及与每一个 CSI进程——对应的 TDD特殊子帧配置信令, 并保存到所述存储模块中; 其中所述 TDD特殊子 帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息; 所述数据和 /或所述下行控制信息所占用的正交频分复用 (OFDM )符号 的终止位置;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的数据。
58、 如权利要求 55所述的终端, 其中, 所述接收模块设置为: 按照所述 特定规则在 TDD特殊子帧上接收基站发来的数据, 包括:
所述接收模块在本终端所在的服务小区接收所述数据; 或者,
所述接收模块按照本终端所在的服务小区的 TDD特殊子帧配置信令接 收所述数据; 或者,
所述接收模块在第一个 NZP CSI-RS对应小区接收所述数据; 或者, 所述接收模块仅仅在第一个 CSI进程对应的小区接收所述数据。
59、 如权利要求 55所述的终端, 其中,
所述接收模块还设置为: 预先接收所述基站为本终端通过高层信令配置 的一个以上的增强物理下行控制信道 (EPDCCH ) 簇以及分别为每一个 EPDCCH簇配置的一套 TDD特殊子帧配置信令,并保存到所述存储模块中; 其中所述 TDD特殊子帧配置信令包括以下任意一项或任意多项的组合:
TDD特殊子帧配置索引;
TDD上下行子帧配置索引;
子帧偏置信息或者时隙偏置信息;
所述数据和 /或所述下行控制信息所占用的正交频分复用 ( OFDM )符号 的终止位置;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的下行控制信息,包括:所述接收模块按照当前 EPDCCH簇对应的 TDD 特殊子帧配置信令接收所述下行控制信息。
60、 如权利要求 55所述的终端, 其中,
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的下行控制信息, 包括: 所述接收模块按照本终端所在服务小区对应的 TDD特殊子帧配置信令接收 EPDCCH簇中的下行控制信息。
61、 如权利要求 55、 56或 57所述的终端, 其中, 所述接收模块还设置 为:预先接收所述基站为本终端通过高层信令配置的 N个特殊子帧配置信令 以及所述下行控制信息(DCI ); 其中, 所述 DCI中的至少部分信息比特的 值用于指示所述基站当前发送数据的子帧对应的 N个特殊子帧配置信令中的 一个特殊子帧配置信令; 其中, N为正整数;
所述接收模块设置为: 按照所述特定规则在 TDD特殊子帧上接收基站 发来的下行控制信息, 包括: 所述接收模块按照接收到的所述 DCI中的信息 比特的值所指示的 TDD特殊子帧配置信令接收所述数据。
62、 如权利要求 55、 56、 57、 59中任意一项所述的终端, 其中, 所述接收模块设置为: 按照特定规则在 TDD特殊子帧上接收基站发来 的数据和 /或下行控制信息, 包括: 所述接收模块在本终端被配置为特定传输 模式、 DCI格式或者特定接收下行控制信息的模式时, 按照特定规则在 TDD 特殊子帧上接收基站发来的数据和 /或下行控制信息。
63、 如权利要求 62所述的终端, 其中,
所述接收模块设置为:在本终端被配置为传输模式 10并且本终端在 TDD 特殊子帧釆用用于解调的参考信号 (DMRS )接收 PDSCH 时, 釆用本终端 所在的服务小区的特殊子帧配置接收所述 PDSCH。
64、 如权利要求 62所述的终端, 其中,
所述接收模块设置为: 在本终端若被配置为传输模式 10、 在 TDD特殊 子帧釆用 DMRS接收 PDSCH、且所述 PDSCH对应的 DCI格式为 DCI Format 1A时, 釆用本终端所在的服务小区的特殊子帧配置接收所述 PDSCH。
65、 如权利要求 62所述的终端, 其中,
所述接收模块设置为:在所述终端被配置为传输模式 10并且所述终端在 TDD特殊子帧釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时,釆用第一个 NZP CSI-RS对应的小区的特殊子帧配置信令 接收所述 PDSCH。
66、 如权利要求 62所述的终端, 其中, 所述接收模块设置为: 在本终端 被配置为传输模式 10、 本终端在 TDD特殊子帧上釆用 DMRS接收 PDSCH、 且所述 PDSCH对应的 DCI格式为 DCI Format 1 A时, 釆用第一个 CSI进程 对应的小区的特殊子帧配置信令接收所述 PDSCH。
67、 如权利要求 62所述的终端, 其中, 所述接收模块设置为: 在本终端 下行控制信息时, 釆用所在服务小区的特殊子帧配置接收所述 EPDCCH。
68、 如权利要求 62所述的终端, 其中,
所述接收模块设置为:在本终端被配置为传输模式 10并且本终端在 TDD 特殊子帧上釆用 EPDCCH接收所述下行控制信息时, 釆用第一个 EPDCCH 簇对应的特殊子帧配置接收所述 EPDCCH。
69、 如权利要求 56或 57所述的终端, 其中,
包括: 所述接收模块预先接收所述基站向本终端下发的 DCI; 其中, 所 述 DCI 中的至少部分信息用于指示所述基站向本终端发送的数据所使用的 NZP CSI-RS 配置或者 CSI 进程配置; 所述接收模块还用于通过所述 NZP CSI-RS配置或者 CSI进程配置对应的 TDD特殊子帧配置获得在当前子帧接 收数据所釆用的 TDD特殊子帧配置。
70、 如权利要求 61或 69所述的终端, 其中, 所述 DCI中的所述至少部 分信息比特为下行共享信道资源元素映射和准共址指示 (PQI ) 比特。
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