WO2014019343A1 - 控制信令发送、检测方法及基站及终端 - Google Patents
控制信令发送、检测方法及基站及终端 Download PDFInfo
- Publication number
- WO2014019343A1 WO2014019343A1 PCT/CN2013/000910 CN2013000910W WO2014019343A1 WO 2014019343 A1 WO2014019343 A1 WO 2014019343A1 CN 2013000910 W CN2013000910 W CN 2013000910W WO 2014019343 A1 WO2014019343 A1 WO 2014019343A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- epdcch resource
- region
- subframe
- current subframe
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
Definitions
- the present invention relates to a technique for transmitting and detecting downlink control information on an enhanced control channel, and more particularly to a method and apparatus for transmitting and detecting downlink control information on an enhanced control channel in a wireless communication system.
- the downlink physical layer control signaling in the Long Term Evolution (LTE) system and the LTE-Advance (LTE-Advance) system includes downlink grant related downlink grant (DL Grant) information that the terminal needs to know and the UE needs to know.
- the uplink grant related uplink grant (UL Grant) information is used to indicate various transmission related information such as a transmission resource location, a modulation and coding scheme, and the physical layer control signaling is on a physical downlink control channel (PDCCH, Physical Downlink Control Channel). Transfer.
- the physical layer control signaling here mainly refers to user-specific control signaling of the physical layer.
- the physical layer control channel for transmitting physical layer control signaling is generally configured in the first N orthogonal frequency division multiplexing (OFDM). Orthogonal Frequency Division Multiplexing) is generally transmitted on the symbol, which is generally referred to as a control signaling transmission area.
- OFDM orthogonal frequency division multiplexing
- the available transmission resources of the existing control signaling transmission area are divided into a plurality of control channel unit (CCE) resource units, and the control information occupation resources are performed in units of CCEs.
- CCE control channel unit
- REGs non-contiguous resource unit groups
- Both proprietary and public control signaling are transmitted in CCE. It is then mapped to the corresponding REG resource and further mapped to the minimum resource unit (RE, Resource element) of multiple physical resource blocks (PRBs).
- the terminal generally performs blind detection in the following manner: Calculate the proprietary control signaling, the starting position of the public control signaling, where we mainly focus on proprietary control signaling: Aggregation level and blind detection times for blind detection of control signaling
- control signaling transmission resources allocated by the user are not continuous, which brings many difficulties to the implementation of the closed-loop precoding technology in the multi-antenna system, so that the control signaling region can only use the diversity technology and it is difficult to use the closed-loop precoding technology. .
- the main reason is that the demodulation pilot design and the channel state information feedback of the first control signaling region have great design difficulty. Therefore, the control signaling in the existing version only supports the discontinuous resource transmission and diversity techniques.
- the design considers opening up a new control channel region (second control signaling transmission region, second control signaling region), and
- the control signaling transmission resources of the same UE may be continuous time-frequency resources to support the closed-loop precoding technology, and improve the transmission performance of the control information.
- the control signaling area of the old and new versions is shown in Figure 1.
- This method allocates part of the transmission resources for the new control signaling transmission area in the original R8/9/10 Physical Downlink Shared Channel (PDSCH) transmission area, which can make The closed-loop precoding technology is supported when controlling signaling transmission, and the control signaling capacity is increased to support more user control signaling.
- PDSCH Physical Downlink Shared Channel
- ePDCCH detection methods from the aspects of detecting resource granularity, ePDCCH transmission candidate position (ePDCCH candidate) pilot port, and transmission mode.
- the base station since there is no additional information to inform the terminal how much transmission resources will be occupied by the coded modulated control information, the base station first notifies the terminal ePDCCH resource Region, For example, there are 4 PRB pairs, for example, as shown in FIG. 1 is 4 of all PRB pairs of the entire bandwidth, or the terminal is determined according to the UE ID or other UE specific parameters.
- the ePDCCH resource region actually limits the control information transmitted on all ePDCCHs of the terminal to be included in the Region. Of course, the Region is not necessarily full.
- the base station and the terminal also stipulate a basic resource allocation unit as the minimum allocation granularity, and then further stipulates the size of several occupied resources, generally an aggregation of one or more resource allocation units, and aggregation of N resource allocation units is called an aggregation level. N.
- the base station may send the coded modulated control information in one of the sizes, and the terminal may blindly detect the re-agreed resource sizes, which may also be referred to as several aggregation levels of the detection convention.
- a basic resource unit eCCE is defined.
- the eCCE is similar to the previous CCE. In the second control area, the eCCE can borrow the definition of the old version of the CCE or modify it slightly. It can also be newly defined. It can be a fixed size or Variable size.
- the eCCE can include the Distributed eCCE and the Localized eCCE, as shown in Figure 2.
- Control signaling can then define different aggregation levels based on eCCE, such as aggregation 1, 2, 4, 8, or 1, 2, 4 or 1, 3, 5, 7, and so on. Then different aggregation levels represent different resource sizes.
- the UE tests these candidates. It is necessary to blindly check the candidates one by one. Considering the complexity, it is impossible for the terminal to detect all possible situations, so there is a search space.
- the search space includes some specified candidates under multiple aggregation levels. As shown in Figure 3, one grid represents an L-eCCE. , consists of 2 eREGs. As shown in Figure 4, a grid represents an eREG.
- the EPDCCH resource Region is a fixed size, such as N PRBs, or M eCCEs.
- N PRBs such as N PRBs
- M eCCEs such as M eCCEs.
- the eCCE can reduce the number of REs that can carry control information, such as:
- a normal subframe and a special subframe of the TDD system may have different numbers of OFDM symbols, and each eCCE may have different REs that can carry control information.
- the number of OFDM symbols occupied by the PDCCH is different, and the RE of each eCCE that can carry control information is different.
- a subframe having CSI-RS pilots and no CSI-RS pilots may carry different REs for control information.
- there are few REs that can carry control information in the eCCE and in some cases, there are more REs that can carry control information.
- the general EPDCCH resource Region is large, and more detection times are given to fully develop the frequency domain diversity gain or the frequency domain selective scheduling gain of the ePDCCH, and when the control information can be carried.
- the EPDCCH resource Region does not need to be too large.
- the size of the EPDCCH resource Region is fixed, which affects performance. Summary of the invention
- the technical problem to be solved by the embodiments of the present invention is to provide a control signaling sending and detecting method, a base station, and a terminal, and solve the problem that the ePDCCH resource area determined by the related method is too large and causes excessive consumption.
- a method for transmitting control signaling includes:
- the base station determines an enhanced physical downlink control channel (ePDCCH) resource region of the terminal in the current subframe according to at least one of the following parameters, and sends control signaling to the terminal on some or all resources in the ePDCCH resource region:
- ePDCCH enhanced physical downlink control channel
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- the synchronization signal transmission condition in the current subframe a physical broadcast channel (PBCH) transmission condition in the current subframe;
- PBCH physical broadcast channel
- the subframe number of the current subframe is the subframe number of the current subframe.
- the determining, by the base station, the ePDCCH resource region of the terminal in the current subframe according to the at least one of the following parameters includes:
- At least two of the parameters include a subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types:
- Time Division Multiplexing (TDD) Special Subframe Type Non-TDD Special Subframe Type
- Cyclic Prefix Type Multicast Broadcast Single Frequency Network Subframe Type
- Non-Multicast Broadcast Single Frequency Network Subframe Type Non-Multicast Broadcast Single Frequency Network Subframe Type.
- the current intra-subframe pilot transmission situation includes at least one of the following: the current subframe common reference signal (CRS) overhead size, the current subframe channel state information reference signal (CSI-RS) The size of the overhead, the current subframe positioning reference signal (PRS) overhead.
- CRS current subframe common reference signal
- CSI-RS current subframe channel state information reference signal
- PRS current subframe positioning reference signal
- the step of determining, by the base station, the ePDCCH resource region of the terminal in the current subframe includes: determining, by the base station, a set of ePDCCH resource regions from the N sets of candidate ePDCCH resource regions, where N is a zero greater than 0.
- the step of determining, by the base station, the ePDCCH resource region of the terminal in the current subframe further includes:
- the base station notifies the information of the N sets of candidate ePDCCH resource regions to the terminal; or the base station determines the N sets of candidate ePDCCH resource regions according to the identifier of the terminal;
- the base station notifies the terminal of the information of the M sets of candidate ePDCCH resource regions that can determine the information of the N sets of candidate ePDCCH resource regions, where M is an integer greater than zero.
- N 2
- the two sets of candidate ePDCCH resource regions have a subset relationship
- N 3
- the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- a base station where the base station includes an enhanced physical downlink control channel (ePDCCH) resource region determining module and a sending module, where:
- ePDCCH enhanced physical downlink control channel
- the ePDCCH resource region determining module is configured to: determine an ePDCCH resource region of the terminal in the current subframe according to at least one of the following parameters:
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- PBCH physical broadcast channel
- the sending module is configured to: send control signaling to the terminal on some or all resources in the ePDCCH resource region.
- the ePDCCH resource region determining module is configured to determine an ePDCCH resource region of the terminal in the current subframe according to the following manner:
- At least two of the parameters include a subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types:
- Time Division Multiplexing (TDD) special subframe type Time Division Multiplexing (TDD) special subframe type
- non-TDD special subframe type cyclic prefix class Type
- multicast broadcast single frequency network subframe type non-multicast broadcast single frequency network subframe type.
- the current intra-subframe pilot transmission situation includes at least one of the following: the current subframe common reference signal (CRS) overhead size, the current subframe channel state information reference signal (CSI-RS) The size of the overhead, the current subframe positioning reference signal (PRS) overhead.
- CRS current subframe common reference signal
- CSI-RS current subframe channel state information reference signal
- PRS current subframe positioning reference signal
- the ePDCCH resource region determining module is configured to determine an ePDCCH resource region of the terminal in the current subframe according to the following manner:
- a set of ePDCCH resource regions is determined from the N sets of candidate ePDCCH resource regions, where N is a zero greater than zero.
- the sending module is further configured to:
- M is an integer greater than zero.
- the ePDCCH resource region determining module is configured to determine an ePDCCH resource region of the terminal in the current subframe according to the following manner:
- the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- the terminal determines an enhanced physical downlink control channel (ePDCCH) resource region of the terminal in the current subframe according to at least one of the following parameters, and detects control signaling on some or all resources in the ePDCCH resource region:
- ePDCCH enhanced physical downlink control channel
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- PBCH physical broadcast channel
- the subframe number of the current subframe is the subframe number of the current subframe.
- the determining, by the terminal, the ePDCCH resource region of the terminal in the current subframe according to the at least one of the following parameters includes:
- the terminal determines an ePDCCH resource region of the terminal in the current subframe according to at least two of the parameters.
- At least two of the parameters include a subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types:
- Time Division Multiplexing (TDD) Special Subframe Type Non-TDD Special Subframe Type
- Cyclic Prefix Type Multicast Broadcast Single Frequency Network Subframe Type
- Non-Multicast Broadcast Single Frequency Network Subframe Type Non-Multicast Broadcast Single Frequency Network Subframe Type.
- the current intra-subframe pilot transmission situation includes at least one of the following: the current subframe common reference signal (CRS) overhead size, the current subframe channel state information reference signal (CSI-RS) The size of the overhead, the current subframe positioning reference signal (PRS) overhead.
- CRS current subframe common reference signal
- CSI-RS current subframe channel state information reference signal
- PRS current subframe positioning reference signal
- the step of determining, by the terminal, the ePDCCH resource region of the terminal in the current subframe includes: determining, from the N sets of candidate ePDCCH resource regions, a set of ePDCCH resource regions, where N is a zero greater than 0.
- the step of the terminal determining the ePDCCH resource region of the terminal in the current subframe further includes: Determining, by the terminal, the information of the N sets of candidate ePDCCH resource regions from the base station; or determining, by the terminal, the N sets of candidate ePDCCH resource regions according to the identifier of the terminal;
- the terminal determines information about the N sets of candidate ePDCCH resource regions according to information and criteria of the M sets of candidate ePDCCH resource regions received from the base station, where M is an integer greater than zero.
- the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- a terminal where the terminal includes an enhanced physical downlink control channel (ePDCCH) resource region determining module and a detecting module, where:
- ePDCCH enhanced physical downlink control channel
- the ePDCCH resource region determining module is configured to: determine an ePDCCH resource region of the terminal in the current subframe according to at least one of the following parameters:
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- PBCH physical broadcast channel
- the detecting module is configured to: on some or all resources in the ePDCCH resource region Detection control signaling.
- the ePDCCH resource region determining module is configured to determine an ePDCCH resource region of the terminal in the current subframe according to the following manner:
- At least two of the parameters include a subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types:
- Time Division Multiplexing (TDD) Special Subframe Type Non-TDD Special Subframe Type
- Cyclic Prefix Type Multicast Broadcast Single Frequency Network Subframe Type
- Non-Multicast Broadcast Single Frequency Network Subframe Type Non-Multicast Broadcast Single Frequency Network Subframe Type.
- the current intra-subframe pilot transmission situation includes at least one of the following: the current subframe common reference signal (CRS) overhead size, the current subframe channel state information reference signal (CSI-RS) The size of the overhead, the current subframe positioning reference signal (PRS) overhead.
- CRS current subframe common reference signal
- CSI-RS current subframe channel state information reference signal
- PRS current subframe positioning reference signal
- the ePDCCH resource region determining module is configured to determine an ePDCCH resource region of the terminal in the current subframe according to the following manner:
- a set of ePDCCH resource regions is determined from the N sets of candidate ePDCCH resource regions, where N is a zero greater than zero.
- the ePDCCH resource region determining module is configured to determine an ePDCCH resource region of the terminal in the current subframe according to the following manner:
- the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- Figure 1 is a schematic diagram of a control signaling layout
- FIG. 2 is a schematic diagram showing the structure of an eCCE
- 3 is a schematic diagram of a terminal searching for resources
- 4 is another schematic diagram of a terminal searching for resources
- FIG. 5 is a schematic diagram of a method for transmitting control signaling
- FIG. 6 is a schematic diagram of an aggregation level and a candidate area in a search space when region 2 is selected in the specific embodiments 1 and 20;
- FIG. 7 is a schematic diagram of an aggregation level and a candidate area in a search space when region 1 is selected in the specific embodiments 1 and 20;
- Figure 8 is a diagram showing the aggregation level and the candidate area in the search space when Region 2 is selected in Embodiments 2 and 21;
- Figure 9 is a diagram showing the aggregation level and the candidate area in the search space when Region 1 is selected in Embodiments 2 and 21;
- Figure 10 is a diagram showing the aggregation levels and candidate regions in the search space when Region 2 is selected in Embodiments 3 and 22;
- Figure 11 is a diagram showing the aggregation levels and candidate regions in the search space when Region 3 is selected in Embodiments 3 and 22;
- Figure 12 is a diagram showing the aggregation levels and candidate regions in the search space when Region 1 is selected in Embodiments 3 and 22. Preferred embodiment of the invention
- the control signaling sending method includes: the base station according to at least one of the following parameters: Determining an enhanced physical downlink control channel (ePDCCH) resource region of the terminal in the current subframe, and transmitting control signaling to the terminal on part or all of the resources in the ePDCCH resource region: in the resource block in the current subframe Or the number of resource elements (REs) within the enhanced control channel element (eCCE) or within the enhanced resource unit group (eREG) that can carry control information;
- ePDCCH enhanced physical downlink control channel
- ePDCCH enhanced physical downlink control channel
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- PBCH physical broadcast channel
- the subframe number of the current subframe is the subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types: Time Division Multiplexing (TDD) special subframe type, non-TDD special Subframe type, cyclic prefix type, multicast broadcast single frequency network subframe type, non-multicast broadcast single frequency network subframe type.
- TDD Time Division Multiplexing
- the current intra-subframe pilot transmission situation includes at least one of the following: the current sub-frame common reference signal (CRS) overhead size, and the current sub-frame channel state information reference signal (CSI-RS) overhead size. And the current subframe positioning reference signal (PRS) overhead size.
- CRS current sub-frame common reference signal
- CSI-RS current sub-frame channel state information reference signal
- PRS current subframe positioning reference signal
- the determining, by the base station, the enhanced physical downlink control channel (ePDCCH) resource region of the terminal in the current subframe refers to determining a set of ePDCCH resource regions from the N sets of candidate ePDCCH resource regions, where ⁇ is a zero greater than 0.
- the base station notifies the terminal of the information and criteria of the M sets of candidate ePDCCH resource regions that can determine the information of the N sets of candidate ePDCCH resource regions, where M is an integer greater than zero.
- N There are overlapping resources in the N sets of candidate ePDCCH resource regions.
- N the two sets of candidate ePDCCH resource regions have a subset relationship; when N is 3, the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- the base station in this solution includes an ePDCCH resource region determining module and a sending module.
- the ePDCCH resource region determining module is configured to: determine an ePDCCH resource region of the terminal in the current subframe according to at least one of the following parameters:
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- PBCH physical broadcast channel
- the sending module is configured to: send control signaling to the terminal on some or all resources in the ePDCCH resource region.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the ePDCCH resource region determining module is further configured to: determine an ePDCCH resource region of the terminal in the current subframe according to at least two of the parameters. Included in at least two of the parameters The subframe number of the current subframe.
- the subframe type of the current subframe includes at least one of the following types: a time division multiplexing (TDD) special subframe type, a non-TDD special subframe type, a cyclic prefix type, a multicast broadcast single frequency network subframe type, and a non-multiple Broadcast broadcast single frequency network subframe type.
- TDD time division multiplexing
- the current intra-subframe pilot transmission situation includes at least one of the following: the current sub-frame common reference signal (CRS) overhead size, and the current sub-frame channel state information reference signal (CSI-RS) overhead size. And the current subframe positioning reference signal (PRS) overhead size.
- CRS current sub-frame common reference signal
- CSI-RS current sub-frame channel state information reference signal
- PRS current subframe positioning reference signal
- the ePDCCH resource region determining module is further configured to: determine a set of ePDCCH resource regions from the N sets of candidate ePDCCH resource regions, where N is a zero greater than 0.
- the sending module is configured to: notify the terminal of the information of the N sets of candidate ePDCCH resource regions; or information and criteria of the M sets of candidate ePDCCH resource regions that can determine the information of the N sets of candidate ePDCCH resource regions Notifying to the terminal, M is an integer greater than zero.
- the ePDCCH resource region determining module determines the N sets of candidate ePDCCH resource regions according to the identifier of the terminal.
- N There are overlapping resources in the N sets of candidate ePDCCH resource regions.
- N the two sets of candidate ePDCCH resource regions have a subset relationship; when N is 3, the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- control signaling detection method includes: the terminal determines an ePDCCH resource region of the terminal in the current subframe according to at least one of the following parameters, and detects control signaling on some or all resources in the ePDCCH resource region:
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe The pilot transmission situation in the current subframe;
- PBCH physical broadcast channel
- the subframe number of the current subframe is the subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types: time division multiplexing (TDD) special subframe type, non-TDD special Subframe type, cyclic prefix type, multicast broadcast single frequency network subframe type, non-multicast broadcast single frequency network subframe type.
- TDD time division multiplexing
- the current intra-subframe pilot transmission situation includes at least one of the following: the current sub-frame common reference signal (CRS) overhead size, and the current sub-frame channel state information reference signal (CSI-RS) overhead size. And the current subframe positioning reference signal (PRS) overhead size.
- CRS current sub-frame common reference signal
- CSI-RS current sub-frame channel state information reference signal
- PRS current subframe positioning reference signal
- the determining, by the terminal, the enhanced physical downlink control channel (ePDCCH) resource region of the terminal in the current subframe refers to determining a set of ePDCCH resource regions from the N sets of candidate ePDCCH resource regions, where ⁇ is a zero greater than 0.
- the terminal determines information about the N sets of candidate ePDCCH resource regions according to information and criteria of the M sets of candidate ePDCCH resource regions received from the base station, where M is an integer greater than zero.
- N There are overlapping resources in the N sets of candidate ePDCCH resource regions.
- N the two sets of candidate ePDCCH resource regions have a subset relationship; when N is 3, the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- the terminal includes an ePDCCH resource region determining module and a detecting module.
- the ePDCCH resource region determining module is configured to: determine an enhanced physical downlink control channel (ePDCCH) resource region of the terminal in the current subframe according to at least one of the following parameters:
- the aggregation level configuration to be detected by the terminal
- the type of ePDCCH transmission mode for transmitting control signaling to the terminal includes: a single beamforming transmission mode, that is, a single layer transmission technology using a demodulation reference signal port, a spatial diversity transmission mode, a centralized transmission, and a distributed transmission;
- the subframe type of the current subframe is the subframe type of the current subframe
- PBCH physical broadcast channel
- the subframe number of the current subframe is the subframe number of the current subframe.
- the detecting module is configured to detect control signaling on some or all resources in the ePDCCH resource region.
- the ePDCCH resource region determining module is further configured to: determine an ePDCCH resource region of the terminal in the current subframe according to at least two of the parameters. At least two of the parameters include a subframe number of the current subframe.
- the resource block refers to a physical resource block pair or a virtual resource block.
- the subframe type of the current subframe includes at least one of the following types: a time division multiplexing (TDD) special subframe type, a non-TDD special subframe type, a cyclic prefix type, a multicast broadcast single frequency network subframe type, and a non-multiple Broadcast broadcast single frequency network subframe type.
- TDD time division multiplexing
- the current intra-subframe pilot transmission situation includes at least one of the following: the current sub-frame common reference signal (CRS) overhead size, and the current sub-frame channel state information reference signal (CSI-RS) overhead size. And the current subframe positioning reference signal (PRS) overhead size.
- CRS current sub-frame common reference signal
- CSI-RS current sub-frame channel state information reference signal
- PRS current subframe positioning reference signal
- the ePDCCH resource region determining module is configured to: determine a set of ePDCCH resource regions from the N sets of candidate ePDCCH resource regions, where N is a zero greater than 0.
- the ePDCCH resource region determining module is configured to: obtain information about the N sets of candidate ePDCCH resource regions from the base station, or determine the N sets of candidate ePDCCH resource regions according to the identifier of the terminal, or according to the base station.
- the information and criteria of the received M sets of candidate ePDCCH resource regions determine information of the N sets of candidate ePDCCH resource regions, where M is an integer greater than zero.
- N There are overlapping resources in the N sets of candidate ePDCCH resource regions.
- N the two sets of candidate ePDCCH resource regions have a subset relationship; when N is 3, the union of the first set of candidate ePDCCH resource regions and the second set of candidate ePDCCH resource regions is the first set of candidate ePDCCH resource regions.
- the base station notifies the terminal (UE) of multiple sets of candidate ePDCCH resource region information, and may specifically notify the UE by using RRC signaling.
- the base station can notify the terminal candidate that the ePDCCH resource Region can be the following two sets of Region:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the base station determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station Compared to the 3 ⁇ 4 port, the base station only has the port terminal, Region 1 : PRB pair 1 , PRB pair 3 , PRB air6, PRB air8, PRB pair 1 , PRB pairl 3 , PRB pair 15 PRB pair 18.
- the base station and the terminal pre-arrange the extraction of 4 PRB pairs from Regionl as Regionl, or select the first 4 PRBs as Regionl.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station selects the Epdcch Resource Region as Region2 according to the number of REs that can carry the control information of the eCCE in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V. When the number of REs that can carry control information of the eCCE is less than or equal to the threshold threshold V, the Epdcch Resource Region is selected as Region1.
- the base station selects the Epdcch Resource Region as Region2 according to the number of REs of the bearer control information in the PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V.
- the Epdcch Resource Region is selected as Region1.
- the base station selects the Epdcch Resource Region as Region2 according to the number of REs in the eREG that can carry the control information in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V.
- the Bay 1 j selects the Epdcch Resource Region as Region1.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the ePDCCH resource Region determined by the specific interface is Region2, search space
- the included aggregation levels and candidates are shown in Figure 6.
- the determined ePDCCH resource Region is Regionl , and the aggregation level and candidates contained in the search space are shown in Figure 7.
- One of the grids in the figure represents an L-eCCE consisting of two eREGs.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station (eNodeB) notifies the terminal (UE) of multiple sets of candidate ePDCCH resource Region information, and specifically can notify the UE by using RRC signaling.
- the EPDCCH resource Region that the base station notifies the terminal candidate by signaling may be the following two sets of Region:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the base station determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : PRB pair 1 , PRB pair 3 , PRB air6 , PRB air8, PRB pair 1 , PRB pair 3 , PRB pair 15 PRB pair 18.
- the base station and the terminal pre-arranged to extract 4 PRB pairs as Region1 from the interval in Region1, or select the first 4 PRBs as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines, according to the total number of REs in the pre-defined eCCE in the current subframe (subframes that need to transmit control signaling), due to pilot transmission, occupancy of PDCCH symbols, and other conditions, the number of REs that cannot carry control information.
- the Epdcch Resource Region when the number of REs of the eCCE that cannot carry control information is greater than the threshold threshold V, the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region1.
- the base station determines, according to the total number of REs in the pre-defined eREG in the current subframe (subframes that need to transmit control signaling), due to pilot transmission, PDCCH symbol occupation, and other conditions, the number of REs that cannot carry control information.
- the Epdcch Resource Region when the number of REs of the eREG that cannot carry control information is greater than the threshold threshold X, the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region select Epdcch Resource Region as Region 1.
- the base station determines, according to the total number of REs in the pre-defined PRB pair in the current subframe (subframes that need to transmit control signaling), due to the transmission of the pilot, the occupation of the PDCCH symbol, and the total number of REs that cannot bear the control information caused by other conditions.
- the Epdcch Resource Region when the number of REs of the PRB pair that cannot carry control information is greater than the threshold threshold V, the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region1.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the ePDCCH resource Region determined by the interface is Region2, search
- the aggregation level and candidates contained in space are shown in Figure 8.
- the determined ePDCCH resource Region is Regionl , and the search space contains the aggregation level and the candidate as shown in Figure 9.
- One grid in the figure represents an L-eCCE and consists of two eREGs.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station notifies the terminal (UE) of multiple sets of candidate ePDCCH resource Region information, and specifically can notify the UE by using RRC signaling.
- the base station can notify the terminal candidate that the EPDCCH resource Region can be the following three sets of Region:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 , PRB pairl 8.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 3 PRB pair3 , PRB air8, PRB pairl 3 , PRB pairl 8.
- the base station determines multiple sets of candidates according to the UE ID (C-RNTI) of the terminal that needs to transmit control signaling.
- Select ePDCCH resource Region For example, the above three Regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the base station determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : PRB pair 1 , PRB pair 3 , PRB air6 , PRB air8 , PRB pair 1 , PRB airl3 , PRB pair l5, 18.
- the base station and the terminal pre-arrange the extraction of 4 PRB pairs from Region 2 as Region2, and 4 PRB pairs for Region2.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs in the eCCE that are pre-defined in the current subframe (subframes that need to transmit control signaling) that are not available for carrying control information, which is less than the threshold X.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the predefined eREG in the current subframe (subframes that need to transmit control signaling) is less than the threshold X.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs in the pre-defined PRB pair that are not available for carrying control information, which is less than the threshold X, according to the current subframe (subframe that needs to transmit control signaling).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected. For Region3.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the ePDCCH resource Region determined by the specific interface is Region2, search space
- the aggregation levels and candidates are included in Figure 10.
- the determined ePDCCH resource Region is Region3, and the search space contains the aggregation level 1 J and the candidates port shown in Figure 11.
- the determined ePDCCH resource Region is Regionl , and the aggregation level and candidates contained in the search space are shown in Figure 12.
- One of the grids in the figure represents an L-eCCE consisting of two eREGs.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station notifies the terminal (UE) of multiple sets of candidate ePDCCH resource Region information, and specifically can notify the UE by using RRC signaling.
- the base station can notify the terminal candidate that the EPDCCH resource Region can be the following three sets of Region:
- Region 1 PRB pair 1 , PRB air 2, PRB pair5 , PRB air6, PRB air9,
- Region 2 PRB pair 1 , PRB air5 , PRB air9 , PRB pairl3.
- Region 3 PRB pair 2, PRB air6, PRB airlO, PRB pairl4.
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, the above three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the above three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the base station root According to the information and the criteria agreed by the base station and the terminal, one or more sets of candidate ePDCCH resource Region information are determined.
- the base station only informs the terminal, Region 2 PRB pairl , PRB pair5 , PRB pair9 , PRB pairl3.
- the base station and the terminal pre-arrange the PRB pair index+1 from Region2 as Region3.
- Regionl The union of Region2 and Region3 is used as Regionl.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eCCE in the current subframe (subframe to which the control signaling is required).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs in the pre-defined eREG that are not available for carrying control information, which is greater than or equal to the threshold value V, according to the current subframe (subframe to which control signaling is required).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that can be used to carry the control information in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration, and the search space is composed of multiple ePDCCHs at multiple aggregation levels. The composition of the candidates.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station notifies the terminal (UE) of multiple sets of candidate ePDCCH resource Region information, and specifically can notify the UE by using RRC signaling.
- the base station can notify the terminal candidate that the EPDCCH resource Region can be the following three sets of Region:
- Region 1 eCCEl, eCCE2, eCCE 3, eCCE4, eCCEll, eCCE 12, eCCE 13, eCCE 14, eCCE21, eCCE22, eCCE 23, eCCE24, eCCE31, eCCE 32, eCCE33, eCCE34.
- Region 2 eCCE 1 , eCCE 2 , eCCE 11 , eCCE 12, eCCE 21 , eCCE22 , eCCE31, eCCE32.
- Region 3 eCCE3, eCCE4, eCCE 13, eCCE 14, eCCE 23, eCCE2 4, eCCE33, eCCE34.
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, the above three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the above three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the base station determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 2: eCCEl, eCCE2, eCCEll, eCCE 12, eCCE21, eCCE22, eCCE31, eCCE32.
- the base station and the terminal pre-arrange the eCCE index+1 from Region2 as the union of Region3, Region2 and Region3 as Regionl.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eCCE in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eREG in the current subframe (subframes that need to transmit control signaling).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that can be used to carry the control information in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station After determining the Region, the base station determines the search space in the Region by base station and terminal agreement or by signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station notifies the terminal (UE) of multiple sets of candidate ePDCCH resource Region information, and specifically can notify the UE by using RRC signaling.
- the base station can notify the terminal candidate that the EPDCCH resource Region can be the following three sets of Region:
- Region 1 eREG 1 , eREG 2, eREG 3 , eREG 4, eREG 11 , eREG 12, eREG 13 , eREG 14, eREG 21 , eREG 22, eREG 23 , eREG 2 4, eREG 3 1 , eREG 32, eREG 3 3 , eREG 34.
- Region 2 eREG 1 , eREG 2, eREG 11 , eREG 12, eREG 21 , eREG 2 2, eREG 3 1 , eREG 32.
- Region 3 eREG 3 , eREG 4, eREG 13 , eREG 14, eREG 23 , eREG
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, the above three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the above three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the base station determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 3: eREG 3, eREG 4, eREG 13, eREG 14, eREG 23, eREG 24, eREG 33, eREG 34.
- the base station and the terminal pre-arrange the eCCE index-1 from Region3 as the union of Region2, Region2 and Region3 as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eCCE in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eREG in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station selects the Epdcch Resource Region as Region1 according to the number of REs that can be used to carry the control information in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the base station After determining the Region, the base station determines the search space in the Region by base station and terminal agreement or by signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station notifies the terminal (UE) of multiple sets of candidate ePDCCH resource Region information, and specifically can notify the UE by using RRC signaling.
- the base station can notify the terminal candidate that the ePDCCH resource Region can be the following two sets of Region:
- Region 1 VRB 1 , VRB pair3 , VRB pair6, VRB pair8 , VRB pairl 1 , VRB 13 , VRB 15 VRB 18.
- Region 2 VRB 1, VRB 6, VRB 11, VRB 15.
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the base station determines, according to the UE ID (C-RNTI) of the terminal that needs to transmit the control signaling, a plurality of sets of candidate ePDCCH resource Regions. For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the base station may also notify the terminal of a set of candidate ePDCCH resource Region information, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : VRB 1 , VRB 3 , VRB 6, VRB 8, VRB 11, VRB 13, VRB 15, VRB 18.
- the base station and the terminal pre-agreed to extract 4 VRBs as Region1 from the interval in Region1, or select the first 4 VRBs as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the VRB is a virtual RB composed of a part of resources of multiple PRB pairs.
- the base station selects the Epdcch Resource Region as Region2 according to the number of REs that can carry the control information of the eCCE in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V.
- the Epdcch Resource Region is selected as Region1.
- the base station selects the Epdcch Resource Region as Region2 according to the number of REs in the VRB that can carry control information in the current subframe (subframes that need to transmit control signaling) is greater than the threshold threshold V.
- the Bay 1 j selects the Epdcch Resource Region as Region1.
- the base station selects the Epdcch Resource Region as Region2 according to the number of REs in the eREG that can carry the control information in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V.
- the Bay 1 j selects the Epdcch Resource Region as Region1.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration, and the search space is composed of multiple ePDCCHs at multiple aggregation levels.
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6 , PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the aggregation level that the UE should detect according to the current subframe (a subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region 1 , and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined as
- Region 1 here is a region with more PRBs.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidate contained in the search space in the region selects one of the candidates for the transmission of control information.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 3 PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the aggregation level that the UE should detect according to the current subframe (a subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined as
- Region 1 here is a region with more PRBs.
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined to be Region 1 , and the region with more PRBs is used here.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidate contained in the search space in the region select one of the candidates into The transmission of line control information.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Region1, and the PRB comparison is used here. More regions.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the base station After determining the Region, the base station determines the search space in the Region by base station and terminal agreement or by signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3, PRB airl5 PRB pair l8.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5.
- Region 3 PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined to be Region 1, and the PRB is used here. Region.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidates contained in the search space of the region select one of the candidates for the transmission of control information.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidate contained in the search space in the region selects one of the candidates for the transmission of control information.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 3 PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the base station After determining the Region, the base station is agreed by the base station and the terminal in the Region or by signaling.
- the search space is determined by a plurality of ePDCCH candidates under multiple aggregation levels, and the base station selects one of the candidates to transmit the control information according to the ePDCCH resource region determined by the base station, and further the ePDCCH candidates included in the search space of the region. .
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the sub-frame according to the subframe type of the current subframe (subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined to be
- Region 1 here is a region with more PRBs.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the TDD special subframe is the uplink and downlink conversion subframe in the TDD system, and is composed of DwPTS GP and UpPTS as shown in the following figure. More specifically, the following configurations can be included, as shown in Table 2:
- the current subframe is a TDD special subframe
- the normal CP is configured
- the ePDCCH resource region is determined to be Region1
- the region with more PRBs is used here.
- the current subframe is a TDD special subframe.
- the ePDCCH resource region is determined to be Region2.
- the region with less PRB is used.
- the ePDCCH resource region is determined to be Region2.
- a region with less PRB is used.
- the ePDCCH resource region is determined to be Region1.
- the region with more PRBs is used.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidates contained in the search space of the region select one of the candidates for the transmission of control information.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the sub-frame according to the subframe type of the current subframe (subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined to be Region 1 , and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the base station After determining the Region, the base station determines the search space in the Region by base station and terminal agreement or by signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may It is determined according to the number of symbols occupied by signaling or old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines an ePDCCH resource region of the subframe according to the current subframe pilot transmission condition.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and a region with less PRB is used here.
- the base station After determining the Region, the base station determines the search space in the Region by base station and terminal agreement or by signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5.
- Region 2 PRB pair 1 , PRB air6, PRB pairl l.
- the base station determines an ePDCCH resource region of the subframe according to the current transmission condition of the subframe synchronization signal.
- the ePDCCH resource region is determined to be Region1.
- the region with more PRBs is used.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the base station After determining the Region, the base station determines the search space in the Region by base station and terminal agreement or by signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the base station selects one candidate to perform control information transmission according to the determined ePDCCH resource region and further ePDCCH candidates included in the search space in the region.
- the base station determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1.
- the base station determines an ePDCCH resource region of the subframe according to the current transmission condition of the subframe synchronization signal.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidates contained in the search space of the region select one of the candidates for the transmission of control information.
- Region 1 PRB pair 1 , PRB pair6 , PRB pairl 1 , PRB pairl 5 , PRB pair 2 , PRB air7 , PRB pair 12 , PRB pairl6.
- Region 2 PRB pair 2 , PRB air7 , PRB pairl2 , PRB pairl 6.
- the base station determines the ePDCCH resource region of the subframe according to the current subframe subframe number.
- the current subframe subframe number is an odd number, and the ePDCCH resource region is determined to be Region1.
- the region with more PRBs is used.
- the current subframe subframe number is even, and the ePDCCH resource region is determined to be Region2.
- the region with less PRB is used.
- the base station After determining the Region, the base station determines the search space in the Region through the base station and the terminal agreement or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the base station further determines the ePDCCH resource region according to the ePDCCH resource region.
- the ePDCCH candidates contained in the search space of the region select one of the candidates for the transmission of control information.
- the terminal determines multiple sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and may specifically notify the UE by using RRC signaling.
- eNodeB base station
- the terminal determines that the candidate ePDCCH resource Region can be the following two sets according to the signaling notified by the base station:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
- Region 2 PRB pair 1 , PRB air6 , PRB pairl 1 , PRB pairl 5.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, two Regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the terminal may also determine a set of candidate ePDCCH resource Region information according to the signaling notified by the base station, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : PRB pair 1 , PRB pair 3 , PRB air6 , PRB air8 , PRB pair 1 , PRB airl3 , PRB pair 15 PRB pair 18.
- the base station and the terminal pre-arranged to extract 4 PRB pairs as Region1 from the interval in Region1, or select the first 4 PRBs as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the number of REs of the eCCE that can carry control information in the current subframe (the subframe that needs to transmit control signaling) is greater than the threshold threshold V, and the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region1.
- the terminal is greater than the threshold threshold V, and the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region1.
- the terminal selects the Epdcch Resource Region as Region2 according to the number of REs in the eREG that can carry the control information in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V.
- the Bay 1 j selects the Epdcch Resource Region as Region1.
- the terminal After determining the Region, the terminal detects in the search space determined by the base station and the terminal in the Region or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the ePDCCH resource Region determined by the interface is Region2.
- the aggregation level and candidates for the search space are shown in Figure 6.
- the determined ePDCCH resource Region is the aggregation level of Regionl and search space. Unlike the candidates shown in Figure 7, a grid in the figure represents an L-eCCE and consists of two eREGs.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines multiple sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and may specifically notify the UE by using RRC signaling.
- eNodeB base station
- the terminal determines that the candidate ePDCCH resource Region can be the following two sets of Regions according to the signaling notified by the base station.
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, two regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the terminal may also determine a set of candidate ePDCCH resource Region information according to the signaling notified by the base station, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : PRB pair 1 , PRB pair 3 , PRB air6 , PRB air8, PRB pair 1 , PRB pair 3 , PRB pair 15 PRB pair 18.
- the base station and the terminal pre-arranged to extract 4 PRB pairs as Region1 from the interval in Region1, or select the first 4 PRBs as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the terminal determines, according to the total number of REs in the eCCE, which are predefined in the current subframe (subframes that need to transmit control signaling), due to pilot transmission, PDCCH symbol occupation, and other conditions, the number of REs that cannot carry control information.
- Epdcch resource region when eCCE is not bearable If the number of REs of the control information is greater than the threshold threshold V, the Epdcch Resource Region is selected as Region2. When the number of REs of the eCCE that cannot carry control information is less than or equal to the threshold threshold V, the Epdcch Resource Region is selected as Region 1.
- the terminal determines, according to the total number of REs in the pre-defined eREG in the current subframe (subframes that need to transmit control signaling), due to pilot transmission, PDCCH symbol occupation, and other conditions, the number of REs that cannot carry control information.
- the Epdcch Resource Region when the number of REs of the eREG that cannot carry control information is greater than the threshold threshold X, the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region 1.
- the terminal determines, according to the total number of REs in the pre-defined PRB pair in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted), the PDCCH symbol is occupied, and the total number of REs that cannot bear the control information caused by other conditions.
- the Epdcch Resource Region when the number of REs of the PRB pair that cannot carry control information is greater than the threshold threshold V, the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region1.
- the terminal After determining the Region, the terminal detects in the search space determined by the base station and the terminal in the Region or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the ePDCCH resource Region determined by the interface is Region2.
- the aggregation level and candidates for the search space are shown in Figure 8.
- the determined ePDCCH resource Region is Regionl , and the aggregation level and candidates contained in the search space are shown in Figure 9.
- One of the grids in the figure represents an L-eCCE consisting of two eREGs.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the plurality of sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and specifically, may notify the UE by using RRC signaling.
- the terminal determines that the candidate ePDCCH resource Region can be the following three sets of Regions according to the signaling notified by the base station:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 , PRB pairl 8.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 3 PRB pair3 , PRB air8, PRB pairl 3 , PRB pairl 8.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the terminal may also determine a set of candidate ePDCCH resource Region information according to the signaling notified by the base station, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : PRB pair 1 , PRB pair3 , PRB air6 , PRB air8 , PRB pairl 1 , PRB pairl 3 , PRB pairl 5, 18.
- the base station and the terminal pre-arrange the extraction of 4 PRB pairs from Region 2 as Region2, and the other 4 PRB pairs are Region2.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs in the eCCE that are pre-defined in the current subframe (subframes that need to transmit control signaling) that are not available for carrying control information.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eREG in the current subframe (subframes that need to transmit control signaling) is less than the threshold X.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs in the pre-defined PRB pair that are not available for carrying control information, which is less than the threshold X, according to the current subframe (subframe that needs to transmit control signaling).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal After determining the Region, the terminal detects in the search space determined by the base station and the terminal in the Region or through the signaling configuration.
- the search space is composed of multiple ePDCCH candidates under multiple aggregation levels, and the ePDCCH resource Region determined by the interface is Region2.
- the search level contains the aggregation level and candidates as shown in Figure 10.
- the determined ePDCCH resource Region is Region3, and the search space contains the aggregation level 1 J and the candidates port shown in Figure 11.
- the determined ePDCCH resource Region is Regionl , and the aggregation level and candidates contained in the search space are shown in Figure 12.
- One of the grids in the figure represents an L-eCCE consisting of two eREGs.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines multiple sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and may specifically notify the UE by using RRC signaling.
- eNodeB base station
- the terminal determines that the candidate ePDCCH resource Region can be the following three sets according to the signaling notified by the base station:
- Region 1 PRB pair 1 , PRB pair 2, PRB pair5 , PRB air6, PRB air9, PRB airlO, PRB airl3 , PRB pairl4.
- Region 2 PRB pair 1 , PRB air5 , PRB air9 , PRB pairl3.
- Region 3 PRB air 2, PRB air6, PRB airlO , PRB pairl4.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, three Regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the terminal may also determine a set of candidate ePDCCH resource Region information according to the signaling notified by the base station, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 2 PRB pairl , PRB pair5 , PRB pair9 , PRB pairl3.
- the base station and the terminal pre-arrange the PRB pair index+1 from Region2 as the union of Region3, Region2 and Region3 as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs in the eCCE that are pre-defined in the current sub-frame (subframes that need to transmit control signaling) that are not available for carrying control information.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eREG in the current subframe (subframe to which control signaling is required).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that can be used to carry the control information in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource is selected.
- Region is Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines multiple sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and specifically, may notify the UE by using RRC signaling.
- eNodeB base station
- the terminal determines that the candidate ePDCCH resource Region can be the following three sets of Regions according to the signaling notified by the base station.
- Region 1 eCCE l, eCCE2, eCCE 3, eCCE4, eCCE ll, eCCE 12, eCCE 13, eCCE 14, eCCE21, eCCE22, eCCE 23, eCCE24, eCCE31, eCCE 32, eCCE33, eCCE34.
- Region 2 eCCE 1 , eCCE 2 , eCCE 11 , eCCE 12, eCCE 21 , eCCE22 , eCCE31, eCCE32.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the terminal may also determine a set of candidate ePDCCH resource Region information according to the signaling notified by the base station, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 2: eCCE l, eCCE2, eCCE ll, eCCE 12, eCCE21, eCCE22, eCCE31, eCCE32.
- the base station and the terminal pre-arrange the eCCE index+1 from Region2 as the union of Region3, Region2 and Region3 as Regionl.
- the location of the ePDCCH resource region is mainly indicating the location of the frequency domain, and the location of the time domain may be determined according to the number of symbols occupied by signaling or old version control signaling, and the current subframe is required for multiple consecutive OFDM symbol terminals (requires transmission control signaling)
- the number of REs in the predefined eCCE that are not available for carrying control information is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region1. When the number of REs of the undefined eCCE's unloadable control information is less than the threshold value V and the current subframe number is odd, the Epdcch Resource Region is selected as Region2. When the number of REs of the predefined eCCE that cannot carry control information is less than the threshold value V, and the current subframe number is even, the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eREG in the current subframe (subframe to which control signaling is required).
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that can be used to carry control information in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further selects ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines multiple sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and may specifically notify the UE by using RRC signaling.
- eNodeB base station
- the terminal determines that the candidate ePDCCH resource Region can be the following three sets according to the signaling notified by the base station:
- Region 1 eREG 1 , eREG 2, eREG 3 , eREG 4, eREG 11 , eREG 12, eREG 13 , eREG 14, eREG 21 , eREG 22, eREG 23 , eREG 2 4, eREG 3 1 , eREG 32, eREG 3 3 , eREG 34.
- Region 2 eREG 1 , eREG 2, eREG 11 , eREG 12, eREG 21 , eREG 2 2, eREG 3 1 , eREG 32.
- Region 3 eREG 3, eREG 4, eREG 13, eREG 14, eREG 23, eREG 2 4, eREG 3 3 , eREG 34.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, three regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- C-RNTI UE ID
- the terminal may also determine a set of candidate ePDCCH resources according to the signaling notified by the base station.
- the Region information the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and the criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 3: eREG 3, eREG 4, eREG 13, eREG 14, eREG 23, eREG 24, eREG 33, eREG 34.
- the base station and the terminal pre-arrange the eCCE index-1 from Region3 as the union of Region2, Region2 and Region3 as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eCCE in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that are not available for carrying control information in the pre-defined eREG in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal selects the Epdcch Resource Region as Region1 according to the number of REs that can be used to carry control information in the pre-defined PRB pair in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than or equal to the threshold value V.
- the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region3.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines multiple sets of candidate ePDCCH resource Region information according to the base station (eNodeB) notification signaling, and may specifically notify the UE by using RRC signaling.
- eNodeB base station
- the terminal determines that the candidate ePDCCH resource Region can be the following two sets of Regions according to the signaling notified by the base station.
- Region 1 VRB 1 , VRB pair3 , VRB pair6, VRB pair8 , VRB pairl 1 , VRB 13 , VRB 15 VRB 18.
- Region 2 VRB 1, VRB 6, VRB 11, VRB 15.
- the terminal determines multiple sets of candidate ePDCCH resource Regions according to the UE ID (C-RNTI). For example, three Regions are determined according to the UE ID and an algorithm agreed by the pre-base station and the terminal.
- the terminal may also determine a set of candidate ePDCCH resource Region information according to the signaling notified by the base station, and the terminal determines another set or sets of candidate ePDCCH resource Region information according to the information and criteria agreed by the base station and the terminal.
- the base station only informs the terminal, Region 1 : VRB 1 , VRB 3 , VRB 6, VRB 8, VRB 11, VRB 13, VRB 15, VRB 18.
- the base station and the terminal pre-agreed to extract 4 VRBs as Region1 from the interval in Region1, or select the first 4 VRBs as Region1.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the VRB is a virtual RB composed of a part of resources of multiple PRB pairs.
- the number of REs of the eCCE that can carry control information in the current subframe is greater than the threshold threshold V, and the Epdcch Resource Region is selected as Region2.
- the Epdcch Resource Region is selected as Region1.
- the terminal is greater than the threshold threshold V, and the Epdcch Resource Region is selected as Region2.
- the Bay 1 J selects the Epdcch Resource Region as Region1.
- the terminal selects the Epdcch Resource Region as Region2 according to the number of REs in the eREG that can carry the control information in the current subframe (the subframe in which the control signaling needs to be transmitted) is greater than the threshold threshold V.
- the Bay 1 j selects the Epdcch Resource Region as Region1.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for the region according to its determined ePDCCH resource region Space contains ePDCCH candidates and tests the above ePDCCH candidates.
- the terminal determines the next two sets of selected Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3, PRB pair6 , PRB pair8, PRB pairl 1, PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the terminal determines the ePDCCH resource region of the subframe according to the aggregation level that the UE should detect according to the current subframe (a subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined as
- Region 1 here is a region with more PRBs.
- the ePDCCH resource region is determined to be Region2 , and the region with less PRB is used here.
- the ePDCCH resource region is determined as
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next two sets of selected Epdcch resource Regions, for example: Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 3 PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the aggregation level that the UE should detect according to the current subframe (a subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined to be Region 1 , and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined as
- Region 1 here is a region with more PRBs.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further selects ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Region1, and the PRB comparison is used here. More regions.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next three sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Re gion2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined to be Region 1, and the PRB is used here. Region.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- ePDCCH resource is determined to be Regionl, and here is a region with more PRBs.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next three sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 3 PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5.
- the base station determines the ePDCCH resource region of the subframe according to the ePDCCH transmission technology for transmitting the control information to the UE according to the current subframe (the subframe that needs to transmit the control signaling).
- the ePDCCH resource region is determined to be Region2.
- the ePDCCH resource region is determined to be Region3.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for the region according to its determined ePDCCH resource region Space contains ePDCCH candidates and tests the above ePDCCH candidates.
- the terminal determines the next set of 4 selected Epdcch resource Regions, for example:
- Region 1 PRB pair 1, PRB pair3 , PRB pair6, PRB pair8 , PRB pairl 1,
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the sub-frame according to the subframe type of the current subframe (subframe that needs to transmit control signaling)
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2.
- the region with less PRB is used.
- the TDD special subframe is an uplink and downlink conversion subframe in the TDD system, and is composed of DwPTS GP and UpPTS.
- the current subframe is a TDD special subframe
- the Normal CP when configured, if the 0, 1, 5, and 6 are configured, the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here. .
- the current subframe is a TDD special subframe.
- the ePDCCH resource region is determined to be Region2.
- the region with less PRB is used.
- the ePDCCH resource region is determined to be Region2.
- a region with less PRB is used.
- the ePDCCH resource region is determined to be Region1.
- the region with more PRBs is used.
- the terminal in the Region and the terminal are agreed or configured by signaling.
- the search space consists of multiple ePDCCH candidates at multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB pairl3 , PRB pairl 5 PRB pair 18.
- Region 2 PRB pair 1, PRB pair6, PRB pairl 1, PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines the ePDCCH resource region of the sub-frame according to the subframe type of the current subframe (subframe that needs to transmit control signaling).
- the ePDCCH resource region is determined as
- Region 1 here is a region with more PRBs.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2.
- the region with less PRB is used.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for the region according to its determined ePDCCH resource region Space contains ePDCCH candidates and tests the above ePDCCH candidates.
- the terminal determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- the ePDCCH resource region location mainly indicates the frequency domain location, and the time domain location may be determined according to the number of symbols occupied by the signaling or the old version control signaling, and is a plurality of consecutive OFDM symbols.
- the base station determines an ePDCCH resource region of the subframe according to the current subframe pilot transmission condition.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the ePDCCH resource region is determined to be Region1, and the region with more PRBs is used here.
- the ePDCCH resource region is determined to be Region2, and a region with less PRB is used here.
- the terminal After determining the Region, the terminal detects in the search space determined by the base station and the terminal in the Region or determined by the signaling configuration, where the search space is composed of multiple ePDCCHs at multiple aggregation levels.
- the composition of the candidates is composed of multiple ePDCCHs at multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next set of 4 selected Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5.
- Region 2 PRB pair 1 , PRB pair6, PRB pairl 1
- the base station determines an ePDCCH resource region of the subframe according to the current transmission condition of the subframe synchronization signal.
- the ePDCCH resource region is determined to be Region1.
- the region with more PRBs is used.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the base station After determining the Region, the base station detects in the region and the terminal agreement in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next set of 4 selected Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5.
- Region 2 PRB pair 1 , PRB air6, PRB pairl 1
- the base station determines an ePDCCH resource region of the subframe according to the current transmission condition of the subframe synchronization signal.
- the ePDCCH resource region Determined as Regionl is a region with more PRBs.
- the ePDCCH resource region is determined to be Region2, and the region with less PRB is used here.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the terminal determines the next two sets of candidate Epdcch resource Regions, for example:
- Region 1 PRB pair 1 , PRB pair6 , PRB pairl 1 , PRB pairl 5 , PRB pair 2 , PRB air7 , PRB pair 12, PRB pairl6.
- Region 2 PRB pair 2, PRB air7, PRB pairl2, PRB pairl 6.
- the base station determines an ePDCCH resource region of the subframe according to the current subframe subframe number.
- the current subframe subframe number is an odd number, and the ePDCCH resource region is determined to be Regionl.
- the region with more PRBs is used.
- the current subframe subframe number is even, and the ePDCCH resource region is determined to be Region2.
- the region with less PRB is used.
- the terminal After determining the Region, the terminal detects in the Region and the terminal in the Region or in the search space determined by the signaling configuration, and the search space is composed of multiple ePDCCH candidates under multiple aggregation levels.
- the terminal further searches for ePDCCH candidates included in the search space in the region according to the determined ePDCCH resource region, and detects the ePDCCH candidates.
- the foregoing technical solution can adapt to the transmission capability of the dynamically changing subframe, improve the transmission performance of the control signaling on the ePDCCH, improve the accuracy of the terminal in the control signaling search, and save the terminal consumption. Therefore, the present invention has strong industrial applicability.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
一种控制信令的发送方法和检测方法,一种终端及一种基站,该发送方法包括:基站根据众多参数中的至少一种确定当前子帧下终端的增强物理下行控制信道ePDCCH资源区域,并在所述ePDCCH资源区域中的部分或全部资源上向所述终端发送控制信令。上述技术方案可以适应动态变化的子帧的传输能力,提升控制信令在ePDCCH上传输性能,提高终端在控制信令搜索的准确性,节省终端消耗。因此本发明具有很强的工业实用性。
Description
控制信令发送、 检测方法及基站及终端
技术领域
本发明涉及增强控制信道上的下行控制信息的发送和检测技术, 尤其涉 及无线通信系统中一种增强控制信道上的下行控制信息的发送、 检测方法及 装置, 终端。
背景技术
在长期演进( LTE, Long term evolution )系统及增力口 LTE( LTE-Advance ) 系统中下行物理层控制信令包含了终端需要获知的下行传输相关的下行授权 ( DL Grant )信息和 UE需要获知的上行传输相关的上行授权(UL Grant ) 信息, 来指示传输资源位置, 调制编码方式等各种传输相关的信息, 这些物 理层控制信令在物理下行控制信道 (PDCCH, Physical Downlink Control channel )上进行传输。 这里的物理层控制信令主要是指物理层的用户专有控 制信令。
在 LTE系统的版本( Release, 简称 R ) 8/9及 LTE-Advance系统版本的 R10中, 传输物理层控制信令的物理层控制信道一般配置在前 N个正交频分 复用 (OFDM, Orthogonal Frequency Division Multiplexing)符号上发送, 一般 称这 N个符号为控制信令传输区域。
现有控制信令传输区域(第一控制信令传输区域, 第一控制信令区域) 的可用传输资源被划分为多个控制信道单元(CCE ) 资源单位, 控制信息占 用资源以 CCE为单位进行分配, 这里的资源单位 CCE又可以进一步的细分 为多个 REGs, —个 CCE由多个不连续的资源单位组(REGs )组成, 一般是 9个 REGs构成一个 CCE, 再进一步的每个 REG由多个基本资源单位组成。
专有和公有的控制信令都以 CCE为资源单位进行传输。然后映射到对应 的 REG资源上,进一步的映射到多个物理资源块( PRB )的最小资源单位( RE, Resource element )上。 终端一般按照以下方式进行盲检测: 计算专有控制信 令, 公有控制信令的起始位置, 这里我们主要关注专有控制信令:
控制信令盲检测的聚合级别与盲检次数
可以看出用户分配的控制信令传输资源不是连续的, 在多天线系统中给 闭环预编码技术实施带来很多困难, 因此使得控制信令区域只能使用分集技 术而很难使用闭环预编码技术。 主要原因是第一控制信令区域的解调导频设 计和信道状态信息反馈方面有很大的设计难度, 因此已有的版本中控制信令 都是只支持非连续资源传输和分集技术的。
在 R10之后的版本中, 为了提高控制信道的传输容量, 支持更多用户的 控制信令, 设计考虑开辟新的控制信道区域(第二控制信令传输区域, 第二 控制信令区域),并且同一 UE的控制信令传输资源可以是连续的时频资源, 以支持闭环预编码技术, 提高了控制信息的传输性能。
新旧版本的控制信令区域如图 1所示, 这种方法在原来的 R8/9/10的物 理下行共享信道(PDSCH )传输区域划拨部分传输资源用于新的控制信令传 输区域, 可以使得控制信令传输时支持闭环预编码技术, 提升控制信令容量 支持更多个用户的控制信令。 我们可以称在第二控制信令区域传输的控制信 道为第二控制信道或增强型 PDCCH (ePDCCH, enhanced PDCCH )。
下面分别从检测资源粒度, ePDCCH 传输的候选位置 ( ePDCCH candidates )导频端口, 传输方式等方面介绍一下一些 ePDCCH的检测方法。
一般来说, 由于没有额外的信息通知终端经过编码调制后的控制信息将 会占用多少传输资源,因此,基站首先会通知终端 ePDCCH resource Region,
比如为 4个 PRB pairs, 比如图 1中所示就是整个带宽所有 PRB pairs中的 4 个,或者终端根据 UE ID或其他的 UE specific的参数确定。 ePDCCH resource Region 实际限制了该终端所有 ePDCCH上传输的控制信息都只能包含在这 个 Region内, 当然, 不一定将这个 Region全部占满。
基站和终端还会约定一个基本的资源分配单位为最小分配粒度, 然后进 一步约定几种占用资源的大小, 一般为一个或多个资源分配单位的聚合, N 个资源分配单位的聚合称为聚合级别 N, 基站可以以其中的一种大小来发送 编码调制后的控制信息, 终端会盲检测再约定的几种资源大小, 也可以称为 检测约定的几种聚合级别。 一般定义一个基本资源单位 eCCE, eCCE与以前 的 CCE的功能类似,在第二控制区域 eCCE可以借用老版本 CCE的定义或稍 做修改, 也可以进行新定义, 可以为固定的大小 (size )或可变的 size。
eCCE可以包含 Distributed eCCE和 Localized eCCE, 如图 2所示。
然后,控制信令可以基于 eCCE定义不同的聚合级别,比如聚合 1,2,4,8, 也可以是 1,2,4或 1,3,5,7等。那么不同的聚合级别就代表了不同的资源大小。
UE针对这些 candidates进行检测。 要对 candidates进行逐个盲检测。 考 虑到复杂度, 终端不可能将所有可能的情况都检测一遍, 因此存在一个搜索 空间, 搜索空间包括多个聚合级别下一些指定的 candidates, 如图 3所示, 一 个格栅代表一个 L-eCCE, 由 2个 eREG构成。 如图 4所示, 一个格栅代表 一个 eREG 。
在现有技术中, EPDCCH resource Region是固定的大小,比如 N个 PRB, 或者 M个 eCCE等。但是在实际的系统中有以下一些情况会使得 eCCE的可 承载控制信息的 RE变少,比如:
普通子帧和 TDD系统的特殊子帧,可用 OFDM符号数不同,每个 eCCE 的可承载控制信息的 RE不同。
PDCCH占用的 OFDM符号数不同,每个 eCCE的可承载控制信息的 RE 不同。
MBSFN子帧和非 MBSFN子帧,由于要发送 24个 RE的 CRS, 可承载控
制信息的 RE不同
有 CSI-RS导频和没有 CSI-RS导频的子帧,可承载控制信息的 RE不同。 在部分情况下, eCCE中可承载控制信息的 RE会很少, 而有一些情况下 可承载控制信息的 RE会比较多。 当可承载控制信息的 RE会很少时, 一般 EPDCCH resource Region 较大, 并给予更多的检测次数才能充分的开发 ePDCCH的频域分集增益或频域选择性调度增益,而当可承载控制信息的 RE 会较多时, EPDCCH resource Region则不需要过大。 而相关技术中 EPDCCH resource Region大小是固定的, 会影响性能。 发明内容
本发明实施例要解决的技术问题是提供一种控制信令发送、 检测方法及 基站及终端,解决相关的方法确定出的 ePDCCH资源区域过大引起过多消耗 的问题。
为了解决上述技术问题, 釆用如下技术方案:
一种控制信令的发送方法, 包括:
基站根据以下参数中的至少一种确定当前子帧下终端的增强物理下行控 制信道( ePDCCH ) 资源区域, 并在所述 ePDCCH资源区域中的部分或全部 资源上向所述终端发送控制信令:
所述当前子帧中资源块内或增强控制信道单元 ( eCCE )内或增强资源单 位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
可选地, 基站根据以下参数中的至少一种确定当前子帧下终端的 ePDCCH资源区域的步骤包括:
所述基站根据所述参数中的至少两种确定当前子帧下所述终端的 ePDCCH资源区域。
可选地, 所述参数中的至少两种中包括所述当前子帧的子帧号。
可选地, 所述资源块是指物理资源块对或者虚拟资源块。
可选地, 所述当前子帧的子帧类型至少包括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
可选地, 所述当前子帧内导频发送情况至少包括以下情况之一: 所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
可选地,所述基站确定当前子帧下终端的 ePDCCH资源区域的步骤包括: 所述基站从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大于 0的零数。
可选地,所述基站确定当前子帧下终端的 ePDCCH资源区域的步骤还包 括:
所述基站将所述 N套候选 ePDCCH资源区域的信息通知至所述终端; 或者,所述基站根据所述终端的标识确定出所述 N套候选 ePDCCH资源 区域;
或者,所述基站将能够确定出所述 N套候选 ePDCCH资源区域的信息的 M套候选 ePDCCH资源区域的信息通知至所述终端, M为大于零的整数。
可选地, 所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
一种基站, 所述基站包括增强物理下行控制信道(ePDCCH ) 资源区域 确定模块和发送模块, 其中:
所述 ePDCCH资源区域确定模块设置成:根据以下参数中的至少一种确 定当前子帧下终端的 ePDCCH资源区域:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号;
所述发送模块设置成:在所述 ePDCCH资源区域中的部分或全部资源上 向所述终端发送控制信令。
可选地,所述 ePDCCH资源区域确定模块设置成按照如下方式确定当前 子帧下终端的 ePDCCH资源区域:
根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH资源区域。 可选地, 所述参数中的至少两种中包括所述当前子帧的子帧号。
可选地, 所述资源块是指物理资源块对或者虚拟资源块。
可选地, 所述当前子帧的子帧类型至少包括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类
型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
可选地, 所述当前子帧内导频发送情况至少包括以下情况之一: 所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
可选地,所述 ePDCCH资源区域确定模块设置成按照如下方式确定当前 子帧下终端的 ePDCCH资源区域:
从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大 于 0的零数。
可选地, 所述发送模块还设置成:
将所述 N套候选 ePDCCH资源区域的信息通知至所述终端; 或者, 将能够确定出所述 N套候选 ePDCCH 资源区域的信息的 M 套候选 ePDCCH资源区域的信息和准则通知至所述终端, M为大于零的整数。
可选地,所述 ePDCCH资源区域确定模块设置成按照如下方式确定当前 子帧下终端的 ePDCCH资源区域:
根据所述终端的标识确定出所述 N套候选 ePDCCH资源区域。
可选地, 所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
一种控制信令的检测方法, 其中,
终端根据以下参数中的至少一种确定当前子帧下终端的增强物理下行控 制信道( ePDCCH ) 资源区域, 并在所述 ePDCCH资源区域中的部分或全部 资源上检测控制信令:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
可选地, 终端根据以下参数中的至少一种确定当前子帧下终端的 ePDCCH资源区域的步骤包括:
所述终端根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH 资源区域。
可选地, 所述参数中的至少两种中包括所述当前子帧的子帧号。
可选地, 所述资源块是指物理资源块对或者虚拟资源块。
可选地, 所述当前子帧的子帧类型至少包括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
可选地, 所述当前子帧内导频发送情况是至少包括以下情况之一: 所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
可选地,所述终端确定当前子帧下终端的 ePDCCH资源区域的步骤包括: 从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大 于 0的零数。
可选地,所述终端确定当前子帧下终端的 ePDCCH资源区域的步骤还包 括:
所述终端从基站获知所述 N套候选 ePDCCH资源区域的信息; 或者,所述终端根据所述终端的标识确定出所述 N套候选 ePDCCH资源 区域;
或者, 所述终端根据从所述基站接收的 M套候选 ePDCCH资源区域的 信息和准则确定出所述 N套候选 ePDCCH资源区域的信息, M为大于零的 整数。
可选地, 所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
一种终端, 所述终端包括增强物理下行控制信道(ePDCCH ) 资源区域 确定模块和检测模块, 其中:
所述 ePDCCH资源区域确定模块设置成:根据以下参数中的至少一种确 定当前子帧下终端的 ePDCCH资源区域:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号;
所述检测模块设置成:在所述 ePDCCH资源区域中的部分或全部资源上
检测控制信令。
可选地,所述 ePDCCH资源区域确定模块设置成按照如下方式确定当前 子帧下终端的 ePDCCH资源区域:
根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH资源区域。 可选地, 所述参数中的至少两种中包括所述当前子帧的子帧号。
可选地, 所述资源块是指物理资源块对或者虚拟资源块。
可选地, 所述当前子帧的子帧类型至少包括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
可选地, 所述当前子帧内导频发送情况是至少包括以下情况之一: 所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
可选地,所述 ePDCCH资源区域确定模块设置成按照如下方式确定当前 子帧下终端的 ePDCCH资源区域:
从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大 于 0的零数。
可选地,所述 ePDCCH资源区域确定模块设置成按照如下方式确定当前 子帧下终端的 ePDCCH资源区域:
从基站获知所述 N套候选 ePDCCH资源区域的信息; 或者,
根据所述终端的标识确定出所述 N套候选 ePDCCH资源区域; 或者, 根据从所述基站接收的 M套候选 ePDCCH资源区域的信息和准则确定 出所述 N套候选 ePDCCH资源区域的信息, M为大于零的整数。
可选地, 所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
上述技术方案可以适应动态变化的子帧的传输能力, 提升控制信令在 ePDCCH上传输性能, 提高终端在控制信令搜索的准确性, 节省终端消耗。 附图概述
图 1是控制信令布局的示意图;
图 2是 eCCE的构成示意图;
图 3是终端搜索资源的示意图;
图 4是终端搜索资源的另一示意图;
图 5是控制信令发送方法示意图;
图 6是具体实施例 1和 20中选择区域 2时搜索空间中聚合级别和候选区 域的示意图;
图 7是具体实施例 1和 20中选择区域 1时搜索空间中聚合级别和候选区 域的示意图;
图 8是具体实施例 2和 21中选择区域 2时搜索空间中聚合级别和候选区 域的示意图;
图 9是具体实施例 2和 21中选择区域 1时搜索空间中聚合级别和候选区 域的示意图;
图 10是具体实施例 3和 22中选择区域 2时搜索空间中聚合级别和候选 区域的示意图;
图 11是具体实施例 3和 22中选择区域 3时搜索空间中聚合级别和候选 区域的示意图;
图 12是具体实施例 3和 22中选择区域 1时搜索空间中聚合级别和候选 区域的示意图。 本发明的较佳实施方式
如图 5所示, 控制信令发送方法包括: 基站根据以下参数中的至少一种
确定当前子帧下终端的增强物理下行控制信道(ePDCCH ) 资源区域, 并在 所述 ePDCCH资源区域中的部分或全部资源上向所述终端发送控制信令: 所述当前子帧中资源块内或增强控制信道单元 ( eCCE )内或增强资源单 位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
所述资源块是指物理资源块对或者虚拟资源块。
所述基站根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH 所述当前子帧的子帧类型至少包括以下类型之一: 时分复用 (TDD )特 殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类型、 多播广播单频网子帧 类型、 非多播广播单频网子帧类型。
所述当前子帧内导频发送情况是至少包括以下情况之一: 所述当前子帧 公共参考信号( CRS )开销大小、所述当前子帧信道状态信息参考信号( CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS )开销大小。
所述基站确定当前子帧下终端的增强物理下行控制信道(ePDCCH ) 资 源区域是指从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域 ,Ν 为大于 0的零数。
所述基站将所述 Ν套候选 ePDCCH资源区域的信息通知至所述终端; 或者,所述基站根据所述终端的标识确定出所述 N套候选 ePDCCH资源
区域;
或者,所述基站将能够确定出所述 N套候选 ePDCCH资源区域的信息的 M套候选 ePDCCH资源区域的信息和准则通知至所述终端, M为大于零的 整数。
所述 N套候选 ePDCCH资源区域中存在重叠的资源。 N为 2时, 两套候 选 ePDCCH资源区域存在子集关系; N为 3时, 第一套候选 ePDCCH资源区 域和第二套候选 ePDCCH资源区域的并集为第一套候选 ePDCCH资源区域。
本方案中的基站包括 ePDCCH资源区域确定模块和发送模块。
所述 ePDCCH资源区域确定模块设置成:根据以下参数中的至少一种确 定当前子帧下终端的 ePDCCH资源区域:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号;
所述发送模块设置成:在所述 ePDCCH资源区域中的部分或全部资源上 向所述终端发送控制信令。
所述资源块是指物理资源块对或者虚拟资源块。
所述 ePDCCH资源区域确定模块还设置成:根据所述参数中的至少两种 确定当前子帧下终端的 ePDCCH资源区域。所述参数中的至少两种中包括所
述当前子帧的子帧号。
所述当前子帧的子帧类型至少包括以下类型之一: 时分复用 (TDD )特 殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类型、 多播广播单频网子帧 类型、 非多播广播单频网子帧类型。
所述当前子帧内导频发送情况是至少包括以下情况之一: 所述当前子帧 公共参考信号( CRS )开销大小、所述当前子帧信道状态信息参考信号( CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS )开销大小。
所述 ePDCCH资源区域确定模块还设置成: 从 N套候选 ePDCCH资源 区域中确定一套 ePDCCH资源区域, N为大于 0的零数。
所述发送模块设置成:将所述 N套候选 ePDCCH资源区域的信息通知至 所述终端; 或者将能够确定出所述 N套候选 ePDCCH资源区域的信息的 M 套候选 ePDCCH资源区域的信息和准则通知至所述终端, M为大于零的整数。
所述 ePDCCH 资源区域确定模块, 根据所述终端的标识确定出所述 N 套候选 ePDCCH资源区域。
所述 N套候选 ePDCCH资源区域中存在重叠的资源。 N为 2时, 两套候 选 ePDCCH资源区域存在子集关系; N为 3时, 第一套候选 ePDCCH资源区 域和第二套候选 ePDCCH资源区域的并集为第一套候选 ePDCCH资源区域。
本方案中, 控制信令检测方法包括: 终端根据以下参数中的至少一种确 定当前子帧下终端的 ePDCCH资源区域, 并在所述 ePDCCH资源区域中的 部分或全部资源上检测控制信令:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
所述资源块是指物理资源块对或者虚拟资源块。
所述终端根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH 所述当前子帧的子帧类型至少包括以下类型之一: 时分复用 (TDD )特 殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类型、 多播广播单频网子帧 类型、 非多播广播单频网子帧类型。
所述当前子帧内导频发送情况是至少包括以下情况之一: 所述当前子帧 公共参考信号( CRS )开销大小、所述当前子帧信道状态信息参考信号( CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS )开销大小。
所述终端确定当前子帧下终端的增强物理下行控制信道(ePDCCH ) 资 源区域是指从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域 ,Ν 为大于 0的零数。
所述终端从基站获知所述 Ν套候选 ePDCCH资源区域的信息;
或者,所述终端根据所述终端的标识确定出所述 N套候选 ePDCCH资源 区域;
或者, 所述终端根据从所述基站接收的 M套候选 ePDCCH资源区域的 信息和准则确定出所述 N套候选 ePDCCH资源区域的信息, M为大于零的 整数。
所述 N套候选 ePDCCH资源区域中存在重叠的资源。 N为 2时, 两套候 选 ePDCCH资源区域存在子集关系; N为 3时, 第一套候选 ePDCCH资源区 域和第二套候选 ePDCCH资源区域的并集为第一套候选 ePDCCH资源区域。
本方案中终端包括 ePDCCH资源区域确定模块和检测模块。
所述 ePDCCH资源区域确定模块设置成:根据以下参数中的至少一种确 定当前子帧下终端的增强物理下行控制信道(ePDCCH ) 资源区域:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
所述检测模块设置成:在所述 ePDCCH资源区域中的部分或全部资源上 检测控制信令。
所述 ePDCCH资源区域确定模块还设置成:根据所述参数中的至少两种 确定当前子帧下终端的 ePDCCH资源区域。所述参数中的至少两种中包括所 述当前子帧的子帧号。
所述资源块是指物理资源块对或者虚拟资源块。
所述当前子帧的子帧类型至少包括以下类型之一: 时分复用 (TDD )特 殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类型、 多播广播单频网子帧 类型、 非多播广播单频网子帧类型。
所述当前子帧内导频发送情况是至少包括以下情况之一: 所述当前子帧 公共参考信号( CRS )开销大小、所述当前子帧信道状态信息参考信号( CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS )开销大小。
所述 ePDCCH资源区域确定模块设置成: 从 N套候选 ePDCCH资源区 域中确定一套 ePDCCH资源区域, N为大于 0的零数。
所述 ePDCCH 资源区域确定模块设置成: 从基站获知所述 N 套候选 ePDCCH资源区域的信息, 或者, 根据所述终端的标识确定出所述 N套候选 ePDCCH资源区域, 或者, 根据从所述基站接收的 M套候选 ePDCCH资源 区域的信息和准则确定出所述 N套候选 ePDCCH资源区域的信息, M为大 于零的整数。
所述 N套候选 ePDCCH资源区域中存在重叠的资源。 N为 2时, 两套候 选 ePDCCH资源区域存在子集关系; N为 3时, 第一套候选 ePDCCH资源区 域和第二套候选 ePDCCH资源区域的并集为第一套候选 ePDCCH资源区域。
下面通过具体实施例进行详细说明。
具体实施例 1:
基站( eNodeB )通知终端( UE )多套候选 ePDCCH 资源区域( resource Region )信息 , 具体可以通过 RRC信令告知 UE。
比如: 基站通过信令通知终端候选的 ePDCCH resource Region可以为以 下 2套 Region:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候 选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定 2个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 基站根 据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比 ¾口,基站只通 口终端, Region 1 : PRB pair 1 , PRB pair3 , PRB air6, PRB air8, PRB pairl 1 , PRB pairl 3 , PRB pair 15 PRB pair 18。
基站和终端预先约定从 Regionl中间隔的抽取 4个 PRB pair作为 Regionl , 或者选取前 4个 PRB作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 中 eCCE的可承载控制 信息的 RE的数目, 大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。当 eCCE的可承载控制信息的 RE的数目,小于等于门限门限值 V, 则选用 Epdcch Resource Region为 Regionl。
或者基站根据当前子帧(需要传输控制信令的子帧 )中 PRB pair内的可 承载控制信息的 RE的数目, 大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。 当 PRB pair内的可承载控制信息的 RE的数目, 小于等 于门限门限值 V, 则选用 Epdcch Resource Region为 Regionl。
或者基站根据当前子帧 (需要传输控制信令的子帧) 中 eREG内的可承 载控制信息的 RE的数目,大于门限门限值 V,则选用 Epdcch Resource Region 为 Region2。 当 eREG内的可承载控制信息的 RE的数目, 小于等于门限门限 值 V, 贝1 j选用 Epdcch Resource Region为 Regionl。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成,比 口确定的 ePDCCH resource Region为 Region2 , search space 包含的聚合级别和 candidates如图 6所示。
确定的 ePDCCH resource Region为 Regionl , search space包含的聚合级 别和 candidates如图 7所示。图中的一个格栅代表一个 L-eCCE,由 2个 eREG 构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 2:
基站( eNodeB )通知终端 ( UE ) 多套候选 ePDCCH resource Region信 息, 具体可以通过 RRC信令告知 UE。
比如:基站通过信令通知终端候选的 EPDCCH resource Region可以为以 下 2套 Region:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候 选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定 2个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 基站根 据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 1 : PRB pair 1 , PRB pair3 , PRB air6 , PRB air8, PRB pairl 1 , PRB pairl 3 , PRB pair 15 PRB pair 18。
基站和终端预先约定从 Regionl中间隔的抽取 4个 PRB pair作为 Regionl , 或者选取前 4个 PRB作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE中的 由于导频发送, PDCCH符号的占用, 以及其他情况造成的不可承载控制信 息的 RE的总数目来确定使用的 Epdcch resource region,当 eCCE的不可承载 控制信息的 RE的数目大于门限门限值 V,则选用 Epdcch Resource Region为 Region2。 当 eCCE的不可承载控制信息的 RE的数目, 小于等于门限门限值 V, 选用 Epdcch Resource Region为 Regionl。
基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG中的 由于导频发送, PDCCH符号的占用, 以及其他情况造成的不可承载控制信 息的 RE的总数目来确定使用的 Epdcch resource region,当 eREG的不可承载 控制信息的 RE的数目大于门限门限值 X,则选用 Epdcch Resource Region为 Region2。 当 eREG的不可承载控制信息的 RE的数目, 小于等于门限门限值
X, 选用 Epdcch Resource Region为 Region 1。
基站根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair中 的由于导频发送, PDCCH符号的占用, 以及其他情况造成的不可承载控制 信息的 RE的总数目来确定使用的 Epdcch resource region, 当 PRB pair的不 可承载控制信息的 RE 的数目大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。 当 PRB pair的不可承载控制信息的 RE的数目, 小于等 于门限门限值 X, 则选用 Epdcch Resource Region为 Regionl。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成,比 ^口确定的 ePDCCH resource Region为 Region2 , search space 包含的聚合级别和 candidates如图 8所示。
确定的 ePDCCH resource Region为 Regionl , search space包含的聚合级 别和 candidates如图 9所示,图中的一个格栅代表一个 L-eCCE,由 2个 eREG 构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 3:
基站( eNodeB )通知终端 ( UE ) 多套候选 ePDCCH resource Region信 息, 具体可以通过 RRC信令告知 UE。
比如:基站通过信令通知终端候选的 EPDCCH resource Region可以为以 下 3套 Region:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 , PRB pairl 8。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair3 , PRB air8, PRB pairl 3 , PRB pairl 8。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候
选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定以上 3个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 基站根 据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 1 : PRB pair 1 , PRB pair3 , PRB air6 , PRB air8, PRB pairl 1 , PRB airl3 , PRB pairl5,18。
基站和终端预先约定从 Region2中间隔的抽取 4个 PRB pair作为 Region2 , 另夕卜 4个 PRB pair为 Region2„
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE的数目,小于门限值 X,则选用 Epdcch Resource Region为 Regionl。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 大 于等于门限值 X, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 大于等于 门限值 X ,且当前子帧编号为偶数,则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE的数目,小于门限值 X,则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可承载控制信息的 RE的数目, 大 于等于门限值 X, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 大于等于 门限值 X ,且当前子帧编号为偶数,则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair内 的不可用于承载控制信息的 RE 的数目, 小于门限值 X, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目,大于等于门限值 X,且当前子帧编号为奇数,则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 大于等于门限值 X, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region
为 Region3。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成,比 口确定的 ePDCCH resource Region为 Region2 , search space 包含的聚合级别和 candidates如图 10。
确定的 ePDCCH resource Region为 Region3 , search space包含的聚合级 另1 J和 candidates 口图 11所示。
确定的 ePDCCH resource Region为 Regionl , search space包含的聚合级 别和 candidates如图 12所示。图中的一个格栅代表一个 L-eCCE,由 2个 eREG 构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 4:
基站( eNodeB )通知终端 ( UE ) 多套候选 ePDCCH resource Region信 息, 具体可以通过 RRC信令告知 UE。
比如:基站通过信令通知终端候选的 EPDCCH resource Region可以为以 下 3套 Region:
Region 1 : PRB pair 1 , PRB air 2, PRB pair5 , PRB air6, PRB air9,
PRB airlO, PRB airl3 , PRB pairl4。
Region 2 : PRB pair 1 , PRB air5 , PRB air9 , PRB pairl3。
Region 3 : PRB pair 2, PRB air6, PRB airlO , PRB pairl4。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候 选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定以上 3个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 基站根
据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 2 PRB pairl , PRB pair5 , PRB pair9 , PRB pairl3。
基站和终端预先约定从 Region2 中 PRB pair index+1 作为 Region3 ,
Region2与 Region3的并集作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 eCCE的不可 7 载控制信息的 RE的 数目,小于门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧 (需要传输控制信令的子帧 ) 中预定义的 eREG内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可 载控制信息的 RE 的数目,小门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair内 的可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目, 小于门限值 V, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 'J、于门限值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH
candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 5
基站( eNodeB )通知终端 ( UE ) 多套候选 ePDCCH resource Region信 息, 具体可以通过 RRC信令告知 UE。
比如:基站通过信令通知终端候选的 EPDCCH resource Region可以为以 下 3套 Region:
Region 1 : eCCEl, eCCE2, eCCE 3 , eCCE4, eCCEll, eCCE 12, eCCE 13, eCCE 14, eCCE21, eCCE22, eCCE 23, eCCE24, eCCE31, eCCE 32, eCCE33, eCCE34。
Region 2 : eCCE 1 , eCCE 2 , eCCE 11 , eCCE 12, eCCE 21 , eCCE22 , eCCE31, eCCE32。
Region 3: eCCE3, eCCE4, eCCE 13, eCCE 14, eCCE 23, eCCE2 4, eCCE33, eCCE34。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候 选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定以上 3个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 基站根 据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 2 : eCCEl, eCCE2, eCCEll, eCCE 12, eCCE21, eCCE22, eCCE31 , eCCE32。
基站和终端预先约定从 Region2中 eCCE index+1 作为 Region3 , Region2 与 Region3的并集作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 eCCE的不可 7 载控制信息的 RE的 数目,小于门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可 载控制信息的 RE 的数目,小门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧(需要传输控制信令的子帧 )中预定义的 PRB pair内 的可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目, 小于门限值 V, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 小于门限值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 6
基站( eNodeB )通知终端 ( UE ) 多套候选 ePDCCH resource Region信 息, 具体可以通过 RRC信令告知 UE。
比如:基站通过信令通知终端候选的 EPDCCH resource Region可以为以 下 3套 Region:
Region 1 : eREG 1 , eREG 2, eREG 3 , eREG 4, eREG 11 , eREG 12, eREG 13 , eREG 14, eREG 21 , eREG 22, eREG 23 , eREG 2 4, eREG 3 1 , eREG 32, eREG 3 3 , eREG 34。
Region 2 : eREG 1 , eREG 2, eREG 11 , eREG 12, eREG 21 , eREG 2 2, eREG 3 1 , eREG 32。
Region 3: eREG 3 , eREG 4, eREG 13 , eREG 14, eREG 23 , eREG
2 4, eREG 3 3 , eREG 34。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候 选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定以上 3个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 基站根 据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 3 : eREG 3 , eREG 4, eREG 13 , eREG 14, eREG 23 , eREG 24, eREG 33 , eREG 34。
基站和终端预先约定从 Region3中 eCCE index- 1 作为 Region2, Region2 与 Region3的并集作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 eCCE的不可 7 载控制信息的 RE的 数目,小于门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 小于门限
值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。 基站根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可 载控制信息的 RE 的数目,小门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
基站根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair内 的可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目, 小于门限值 V, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 'J、于门限值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 7:
基站( eNodeB )通知终端 ( UE ) 多套候选 ePDCCH resource Region信 息, 具体可以通过 RRC信令告知 UE。
比如: 基站通过信令通知终端候选的 ePDCCH resource Region可以为以 下 2套 Region:
Region 1 : VRB 1 , VRB pair3 , VRB pair6, VRB pair8 , VRB pairl 1 , VRB 13 , VRB 15 VRB 18。
Region 2: VRB 1 , VRB 6 , VRB 11 , VRB 15。
或者基站根据需要传输控制信令的终端的 UE ID ( C-RNTI )确定多套候 选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法 确定 2个 Region。
也可以是基站通知终端一套候选 ePDCCH resource Region信息, 终端根 据该信息以及基站和终端约定的准则确定其他一套或多套候选 ePDCCH resource Region信息。
比如, 基站只通知终端, Region 1 : VRB 1 , VRB 3 , VRB 6, VRB 8, VRB 11 , VRB 13 , VRB 15 , VRB 18。
基站和终端预先约定从 Regionl中间隔的抽取 4个 VRB作为 Regionl , 或者选取前 4个 VRB作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。
VRB为多个 PRB pair的一部分资源组成的虚拟 RB。
基站根据当前子帧 (需要传输控制信令的子帧 ) 中 eCCE的可承载控制 信息的 RE的数目, 大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。当 eCCE的可承载控制信息的 RE的数目,小于等于门限门限值 V, 则选用 Epdcch Resource Region为 Regionl。
或者基站根据当前子帧 (需要传输控制信令的子帧) 中 VRB 内的可承 载控制信息的 RE的数目,大于门限门限值 V,则选用 Epdcch Resource Region 为 Region2。 当 VRB内的可承载控制信息的 RE的数目, 小于等于门限门限 值 V, 贝1 j选用 Epdcch Resource Region为 Regionl。
或者基站根据当前子帧 (需要传输控制信令的子帧) 中 eREG内的可承 载控制信息的 RE的数目,大于门限门限值 V,则选用 Epdcch Resource Region 为 Region2。 当 eREG内的可承载控制信息的 RE的数目, 小于等于门限门限 值 V, 贝1 j选用 Epdcch Resource Region为 Regionl。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH
candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进 行控制信息的发送。
具体实施例 8:
基占确定下 2套 4昊选的 Epdcch resource Region, 1"列 ^口
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6 , PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 下, UE应该检测的聚 合级别来确定该子帧的 ePDCCH resource region。
例如, 当需要聚合级别为 { 1,2,4,8}时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
当需要检测的聚合级别为 {2,4,8 , 16}时, ePDCCH resource region确定为 Region 1 , 这里釆用的是 PRB比较多的 region。
或者当需要聚合级别为 { 1,2,4}时, ePDCCH resource region 确定为 Region2 , 这里釆用的是 PRB比较少的 region。
当需要检测的聚合级别为 {2,4,8}时, ePDCCH resource region 确定为
Region 1 , 这里釆用的是 PRB比较多的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates, 选择其中一个 candidate进 行控制信息的发送。
具体实施例 9:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 下, UE应该检测的聚 合级别来确定该子帧的 ePDCCH resource region。
例如, 当需要聚合级别为 { 1,2,4,8} , 且当前子帧号为奇数时, ePDCCH resource region确定为 Region2。
当需要聚合级别为 {1,2,4,8} , 且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
当需要检测的聚合级别为 {2,4,8, 16}时, ePDCCH resource region确定为
Region 1 , 这里釆用的是 PRB比较多的 region。 或者
当需要聚合级别为 {1,2,4,8} , 且当前子帧号为奇数时, ePDCCH resource region确定为 Region2。
当需要聚合级别为 {1,2,4,8} , 且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
当需要检测的聚合级别为 {2,4,8}时, ePDCCH resource region 确定为 Region 1 , 这里釆用的是 PRB比较多的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进
行控制信息的发送。
具体实施例 10:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如,当使用空间分集传输(同一个 UE的控制信令传输时一个 PRB pair 内使用 2个即以上的 DMRS专有导频端口) 时, ePDCCH resource region确 定为 Regionl , 这里釆用的是 PRB比较多的 region。
当使用单层 beamforming (同一个 UE的控制信令传输时一个 PRB pair 内使用 1个 DMRS专有导频端口)时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 11:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
PRB airl3 , PRB airl5 PRB pair l8。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5。
Region 3 : PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5。
基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如,使用单层 beamforming(同一个 UE的控制信令传输时一个 PRB pair 内使用 1 个 DMRS 专有导频端口 ) 时, 且当前子帧号为奇数时, ePDCCH resource region确定为 Region2。
使用单层 beamforming (同一个 UE的控制信令传输时一个 PRB pair内 使用 1个 DMRS专有导频端口)时,且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
使用空间分集传输(同一个 UE的控制信令传输时一个 PRB pair内使用 2 个即以上的 DMRS 专有导频端口 ) 时, ePDCCH resource region确定为 Region 1 , 这里釆用的是 PRB比较多的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进 行控制信息的发送。
具体实施例 12:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。
基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如, 当使用分布式传输(控制信令资源不连续)时, ePDCCH resource region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当使用集中式传输(控制信令资源连续) 时, ePDCCH resource region 确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates, 选择其中一个 candidate进 行控制信息的发送。
具体实施例 13:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5。
基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如, 当使用集中式传输(控制信令资源连续) 时, 且当前子帧号为奇 数时 , ePDCCH resource region确定为 Region2。
当使用集中式传输(控制信令资源连续) 时, 且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
当使用分布式传输(控制信令资源不连续)时, ePDCCH resource region 确定为 Regionl , 这里釆用的是 PRB比较多的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配
置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进 行控制信息的发送。
具体实施例 14:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 的子帧类型, 确定该子 †j¾的 ePDCCH resource region。
例如, 当前子帧为 TDD特殊子帧时, ePDCCH resource region确定为
Region 1 , 这里釆用的是 PRB比较多的 region。
当前子帧不为 TDD特殊子帧时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
TDD特殊子帧为 TDD系统中上下行转换子帧, 如下图所示, 由 DwPTS GP和 UpPTS组成。 更具体的, 可以包括以下一些配置, 如表 2所示:
表 2
2192-Tm
1 20480-Tm 2192-Tm 2560-Tm
19760-Tm 2560-Tm
2 21952-Tm 23040-Tm
3 24144-Tm 25600-Tm
4 26336-Tm 7680-Tm
5 6592-Tm 20480-Tm 4384-Tm 5120-Tm
6 19760-Tm 23040-Tm
4384-Tm 5120-Tm
7 21952-Tm - - -
8 24144-Tm - - - 更进一步的, 可以根据是:
例如,当前子帧为 TDD特殊子帧, Normal CP时,如果配置 0,1 , 5,6时, ePDCCH resource region确定为 Regionl ,这里釆用的是 PRB比较多的 region。
当前子帧为 TDD 特殊子帧, Normal CP 时, 如果配置 1,2,3,5,6 时, ePDCCH resource region确定为 Region2 ,这里釆用的是 PRB比较少的 region。
当前不为 TDD特殊子帧, Normal CP时, ePDCCH resource region确定 为 Region2, 这里釆用的是 PRB比较少的 region。
当前子帧为 Extend CP时 ePDCCH resource region确定为 Regionl , 这里 釆用的是 PRB比较多的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进 行控制信息的发送。
具体实施例 15:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 的子帧类型, 确定该子 †j¾的 ePDCCH resource region。
当前子帧为釆用非 MBSFN 子帧时, ePDCCH resource region确定为 Region 1 , 这里釆用的是 PRB比较多的 region。
当前子帧为釆用 MBSFN子帧时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
或者
例如, 当前子帧为非 MBSFN子帧且为 Extend CP时, ePDCCH resource region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧为 MBSFN子帧或 Nromal CP子帧时, ePDCCH resource region 确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 16:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以
根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧导频的发送情况, 确定该子帧的 ePDCCH resource region。
当前子帧存在 CRS发送时, ePDCCH resource region确定为 Regionl ,这 里釆用的是 PRB比较多的 region。
当前子帧为不发送 CRS子帧时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
或者
例如, 当前子帧为发送 PRS 子帧时, ePDCCH resource region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧为不发送 PRS 的子帧时, ePDCCH resource region 确定为 Region2, 这里釆用的是 PRB比较少的 region。
或者
例如, 当前子帧为发送 CRS和 CSI-RS子帧时, ePDCCH resource region 确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧为不发送 CRS或不发送 CSI-RS的子帧时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 17:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5。
Region 2: PRB pair 1 , PRB air6, PRB pairl l。
基站根据当前子帧同步信号的发送情况, 确定该子帧的 ePDCCH resource region。
当前子帧在 PRB pair 15不存在 PBCH发送时, ePDCCH resource region 确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧在 PRB pair 15存在 PBCH发送时, ePDCCH resource region确 定为 Region2, 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成。
基站根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates,选择其中一个 candidate进行控制信息的发 送。
具体实施例 18:
基站确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1。
基站根据当前子帧同步信号的发送情况, 确定该子帧的 ePDCCH resource region。
当前子帧在 PRB pair 15不存在同步信号发送时, ePDCCH resource region 确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧在 PRB pair 15存在同步信号发送时, ePDCCH resource region 确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该
region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进 行控制信息的发送。
具体实施例 19:
基占确定下 2套 4昊选的 Epdcch resource Region, 1"列 ^口:
Region 1 : PRB pair 1 , PRB pair6 , PRB pairl 1 , PRB pairl 5 , PRB pair 2 , PRB air7 , PRB pair 12 , PRB pairl6。
Region 2: PRB pair 2 , PRB air7 , PRB pairl2 , PRB pairl 6。
基站根据当前子帧子帧号, 确定该子帧的 ePDCCH resource region„ 当前子帧子帧号为奇数, ePDCCH resource region确定为 Regionl , 这里 釆用的是 PRB比较多的 region。
当前子帧子帧号为偶数, ePDCCH resource region确定为 Region2 , 这里 釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中通过基站和终端约定或通过信令配 置确定 search space , 该 search space 由多个聚合级别下多个 ePDCCH candidates构成, 基站根据其确定的 ePDCCH resource region, 进一步的该 region中 search space包含的 ePDCCH candidates , 选择其中一个 candidate进 行控制信息的发送。
具体实施例 20:
终端根据基站 (eNodeB )通知信令, 确定多套候选 ePDCCH resource Region信息 , 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 2套 Region:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6 , PRB pairl 1 , PRB pairl 5。
或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 2个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 1 : PRB pair 1 , PRB pair3 , PRB air6 , PRB air8, PRB pairl 1 , PRB airl3 , PRB pair 15 PRB pair 18。
基站和终端预先约定从 Regionl中间隔的抽取 4个 PRB pair作为 Regionl , 或者选取前 4个 PRB作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 终端根据当前子帧 (需要传输控制信令的子帧) 中 eCCE的可承载控制 信息的 RE的数目, 大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。当 eCCE的可承载控制信息的 RE的数目,小于等于门限门限值 V, 则选用 Epdcch Resource Region为 Regionl。
或者终端根据当前子帧(需要传输控制信令的子帧 )中 PRB pair内的可 承载控制信息的 RE的数目, 大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。 当 PRB pair内的可承载控制信息的 RE的数目, 小于等 于门限门限值 V, 则选用 Epdcch Resource Region为 Regionl。
或者终端根据当前子帧 (需要传输控制信令的子帧 ) 中 eREG内的可承 载控制信息的 RE的数目,大于门限门限值 V,则选用 Epdcch Resource Region 为 Region2。 当 eREG内的可承载控制信息的 RE的数目, 小于等于门限门限 值 V, 贝1 j选用 Epdcch Resource Region为 Regionl。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成,比 口确定的 ePDCCH resource Region为 Region2 , search space 包含的聚合级别和 candidates如图 6所示。
确定的 ePDCCH resource Region为 Regionl , search space包含的聚合级
别和 candidates图 7所示, 图中的一个格栅代表一个 L-eCCE, 由 2个 eREG 构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 21:
终端根据基站 (eNodeB )通知信令, 确定多套候选 ePDCCH resource Region信息 , 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 2套 Region。
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 2个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 1 : PRB pair 1 , PRB pair3 , PRB air6 , PRB air8, PRB pairl 1 , PRB pairl 3 , PRB pair 15 PRB pair 18。
基站和终端预先约定从 Regionl中间隔的抽取 4个 PRB pair作为 Regionl , 或者选取前 4个 PRB作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 终端根据当前子帧 (需要传输控制信令的子帧 ) 中预定义的 eCCE中的 由于导频发送, PDCCH符号的占用, 以及其他情况造成的不可承载控制信 息的 RE的总数目来确定使用的 Epdcch resource region,当 eCCE的不可承载
控制信息的 RE的数目大于门限门限值 V,则选用 Epdcch Resource Region为 Region2。 当 eCCE的不可承载控制信息的 RE的数目, 小于等于门限门限值 V, 选用 Epdcch Resource Region为 Region 1。
终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG中的 由于导频发送, PDCCH符号的占用, 以及其他情况造成的不可承载控制信 息的 RE的总数目来确定使用的 Epdcch resource region,当 eREG的不可承载 控制信息的 RE的数目大于门限门限值 X,则选用 Epdcch Resource Region为 Region2。 当 eREG的不可承载控制信息的 RE的数目, 小于等于门限门限值 X, 选用 Epdcch Resource Region为 Region 1。
终端根据当前子帧(需要传输控制信令的子帧)中预定义的 PRB pair中 的由于导频发送, PDCCH符号的占用, 以及其他情况造成的不可承载控制 信息的 RE的总数目来确定使用的 Epdcch resource region, 当 PRB pair的不 可承载控制信息的 RE 的数目大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。 当 PRB pair的不可承载控制信息的 RE的数目, 小于等 于门限门限值 X, 则选用 Epdcch Resource Region为 Regionl。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成,比 口确定的 ePDCCH resource Region为 Region2 , search space 包含的聚合级别和 candidates如图 8所示。
确定的 ePDCCH resource Region为 Regionl , search space包含的聚合级 别和 candidates如图 9所示。图中的一个格栅代表一个 L-eCCE,由 2个 eREG 构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 22:
终端根据基站 (eNodeB )通知信令, 确定多套候选 ePDCCH resource Region信息, 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 3套 Region:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 , PRB pairl 8。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair3 , PRB air8, PRB pairl 3 , PRB pairl 8。
或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 3个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 1 : PRB pair 1 , PRB pair3 , PRB air6 , PRB air8, PRB pairl 1 , PRB pairl 3 , PRB pairl 5,18。
基站和终端预先约定从 Region2中间隔的抽取 4个 PRB pair作为 Region2 , 另夕卜 4个 PRB pair为 Region2。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE的数目,小于门限值 X,则选用 Epdcch Resource Region为 Regionl。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 大 于等于门限值 X, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 大于等于 门限值 X ,且当前子帧编号为偶数,则选用 Epdcch Resource Region为 Region3。
终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE的数目,小于门限值 X,则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可承载控制信息的 RE的数目, 大 于等于门限值 X, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 大于等于
门限值 X ,且当前子帧编号为偶数,则选用 Epdcch Resource Region为 Region3。 终端根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair内 的不可用于承载控制信息的 RE 的数目, 小于门限值 X, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目,大于等于门限值 X,且当前子帧编号为奇数,则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 大于等于门限值 X, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region 为 Region3。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成,比 口确定的 ePDCCH resource Region为 Region2 , search space 包含的聚合级别和 candidates如图 10。
确定的 ePDCCH resource Region为 Region3 , search space包含的聚合级 另1 J和 candidates 口图 11所示。
确定的 ePDCCH resource Region为 Regionl , search space包含的聚合级 别和 candidates如图 12所示。图中的一个格栅代表一个 L-eCCE,由 2个 eREG 构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 23:
终端根据基站 (eNodeB )通知信令, 确定多套候选 ePDCCH resource Region信息 , 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 3套 Region:
Region 1 : PRB pair 1 , PRB pair 2, PRB pair5 , PRB air6, PRB air9, PRB airlO, PRB airl3 , PRB pairl4。
Region 2 : PRB pair 1 , PRB air5 , PRB air9 , PRB pairl3。
Region 3 : PRB air 2, PRB air6, PRB airlO , PRB pairl4。 或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 3个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 2 PRB pairl , PRB pair5 , PRB pair9 , PRB pairl3。
基站和终端预先约定从 Region2 中 PRB pair index+1 作为 Region3 , Region2与 Region3的并集作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 eCCE的不可承载控制信息的 RE的 数目,小于门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可 载控制信息的 RE 的数目,小门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
终端根据当前子帧(需要传输控制信令的子帧 )中预定义的 PRB pair内 的可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目, 小于门限值 V, 且当前子帧编号为奇数, 则选用 Epdcch Resource
Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 'J、于门限值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 24
终端根据基站 (eNodeB)通知信令, 确定多套候选 ePDCCH resource Region信息 , 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 3套 Region。
Region 1 : eCCE l, eCCE2, eCCE 3 , eCCE4, eCCE ll, eCCE 12, eCCE 13, eCCE 14, eCCE21, eCCE22, eCCE 23, eCCE24, eCCE31, eCCE 32, eCCE33, eCCE34。
Region 2 : eCCE 1 , eCCE 2 , eCCE 11 , eCCE 12, eCCE 21 , eCCE22 , eCCE31, eCCE32。
Region 3: eCCE3, eCCE4, eCCE 13, eCCE 14, eCCE 23, eCCE2
4, eCCE33, eCCE34。
或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 3个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 2 : eCCE l, eCCE2, eCCE ll, eCCE 12, eCCE21, eCCE22, eCCE31 , eCCE32。
基站和终端预先约定从 Region2中 eCCE index+1 作为 Region3 , Region2 与 Region3的并集作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号 终端根据当前子帧 (需要传输控制信令的子帧 ) 中预定义的 eCCE内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 eCCE的不可 7 载控制信息的 RE的 数目,小于门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可 载控制信息的 RE 的数目,小门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
终端根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair内 的可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目, 小于门限值 V, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 'J、于门限值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 25
终端根据基站 (eNodeB )通知信令, 确定多套候选 ePDCCH resource Region信息 , 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 3套 Region:
Region 1 : eREG 1 , eREG 2, eREG 3 , eREG 4, eREG 11 , eREG 12, eREG 13 , eREG 14, eREG 21 , eREG 22, eREG 23 , eREG 2 4, eREG 3 1 , eREG 32, eREG 3 3 , eREG 34。
Region 2 : eREG 1 , eREG 2, eREG 11 , eREG 12, eREG 21 , eREG 2 2, eREG 3 1 , eREG 32。
Region 3: eREG 3 , eREG 4, eREG 13 , eREG 14, eREG 23 , eREG 2 4, eREG 3 3 , eREG 34。
或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 3个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource
Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如,基站只通知终端, Region 3 : eREG 3 , eREG 4, eREG 13 , eREG 14, eREG 23 , eREG 24, eREG 33 , eREG 34。
基站和终端预先约定从 Region3中 eCCE index- 1 作为 Region2 , Region2 与 Region3的并集作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eCCE内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 eCCE的不可 7 载控制信息的 RE的 数目,小于门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eCCE的不可承载控制信息的 RE的数目, 小于门限
值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。 终端根据当前子帧 (需要传输控制信令的子帧) 中预定义的 eREG内的 不可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。 当预定义的 eREG的不可 载控制信息的 RE 的数目,小门限值 V,且当前子帧编号为奇数,则选用 Epdcch Resource Region 为 Region2。 当预定义的 eREG的不可承载控制信息的 RE的数目, 小于门限 值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
终端根据当前子帧 (需要传输控制信令的子帧 )中预定义的 PRB pair内 的可用于承载控制信息的 RE 的数目, 大于等于门限值 V, 则选用 Epdcch Resource Region为 Regionl。当预定义的 PRB pair的不可 载控制信息的 RE 的数目, 小于门限值 V, 且当前子帧编号为奇数, 则选用 Epdcch Resource Region为 Region2。当预定义的 PRB pair的不可承载控制信息的 RE的数目, 'J、于门限值 V, 且当前子帧编号为偶数, 则选用 Epdcch Resource Region为 Region3。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 26:
终端根据基站 (eNodeB )通知信令, 确定多套候选 ePDCCH resource Region信息 , 具体可以通过 RRC信令告知 UE。
比如: 终端根据基站通知的信令确定候选的 ePDCCH resource Region可 以为以下 2套 Region。
Region 1 : VRB 1 , VRB pair3 , VRB pair6, VRB pair8 , VRB pairl 1 , VRB 13 , VRB 15 VRB 18。
Region 2: VRB 1 , VRB 6 , VRB 11 , VRB 15。
或者终端根据 UE ID( C-RNTI )确定多套候选 ePDCCH resource Region。 比如根据 UE ID和预先基站和终端约定的算法确定 3个 Region。
也可以是终端根据基站通知的信令确定一套候选 ePDCCH resource Region信息, 终端根据该信息以及基站和终端约定的准则确定其他一套或多 套候选 ePDCCH resource Region信息。
比如, 基站只通知终端, Region 1 : VRB 1 , VRB 3 , VRB 6, VRB 8, VRB 11 , VRB 13 , VRB 15 , VRB 18。
基站和终端预先约定从 Regionl中间隔的抽取 4个 VRB作为 Regionl , 或者选取前 4个 VRB作为 Regionl。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。
VRB为多个 PRB pair的一部分资源组成的虚拟 RB。
终端根据当前子帧 (需要传输控制信令的子帧) 中 eCCE的可承载控制 信息的 RE的数目, 大于门限门限值 V, 则选用 Epdcch Resource Region为 Region2。当 eCCE的可承载控制信息的 RE的数目,小于等于门限门限值 V, 则选用 Epdcch Resource Region为 Regionl。
或者终端根据当前子帧 (需要传输控制信令的子帧) 中 VRB 内的可承 载控制信息的 RE的数目,大于门限门限值 V,则选用 Epdcch Resource Region 为 Region2。 当 VRB内的可承载控制信息的 RE的数目, 小于等于门限门限 值 V, 贝1 J选用 Epdcch Resource Region为 Regionl。
或者终端根据当前子帧 (需要传输控制信令的子帧) 中 eREG内的可承 载控制信息的 RE的数目,大于门限门限值 V,则选用 Epdcch Resource Region 为 Region2。 当 eREG内的可承载控制信息的 RE的数目, 小于等于门限门限 值 V, 贝1 j选用 Epdcch Resource Region为 Regionl。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search
space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 27:
终端确定下 2套 ^矣选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3, PRB pair6 , PRB pair8, PRB pairl 1, PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。
终端根据当前子帧 (需要传输控制信令的子帧) 下, UE应该检测的聚 合级别来确定该子帧的 ePDCCH resource region。
例如, 当需要聚合级别为 {1,2,4,8}时, ePDCCH resource region确定为 Region2 , 这里采用的是 PRB比较少的 region。
当需要检测的聚合级别为 {2,4,8, 16}时, ePDCCH resource region确定为
Region 1 , 这里采用的是 PRB比较多的 region。
或者当需要聚合级别为 { 1,2,4}时, ePDCCH resource region 确定为 Region2 , 这里采用的是 PRB比较少的 region。
级别为 {2,4,8}时, ePDCCH resource region 确定为
candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 28:
终端确定下 2套矣选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 下, UE应该检测的聚 合级别来确定该子帧的 ePDCCH resource region。
例如, 当需要聚合级别为 { 1,2,4,8} , 且当前子帧号为奇数时, ePDCCH resource region确定为 Region2。
当需要聚合级别为 {1,2,4,8} , 且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
当需要检测的聚合级别为 {2,4,8, 16}时, ePDCCH resource region确定为 Region 1 , 这里釆用的是 PRB比较多的 region。
或者
当需要聚合级别为 {1,2,4,8} , 且当前子帧号为奇数时, ePDCCH resource region确定为 Region2。
当需要聚合级别为 {1,2,4,8} , 且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
当需要检测的聚合级别为 {2,4,8}时, ePDCCH resource region 确定为
Region 1 , 这里釆用的是 PRB比较多的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 29:
终端确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如,当使用空间分集传输(同一个 UE的控制信令传输时一个 PRB pair 内使用 2个即以上的 DMRS专有导频端口) 时, ePDCCH resource region确 定为 Regionl , 这里釆用的是 PRB比较多的 region。
当使用单层 beamforming (同一个 UE的控制信令传输时一个 PRB pair 内使用 1个 DMRS专有导频端口)时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 30:
终端确定下 3套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5。
基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如,使用单层 beamforming(同一个 UE的控制信令传输时一个 PRB pair 内使用 1 个 DMRS 专有导频端口 ) 时, 且当前子帧号为奇数时, ePDCCH resource region确定为 Re gion2。
使用单层 beamforming (同一个 UE的控制信令传输时一个 PRB pair内 使用 1个 DMRS专有导频端口)时,且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
使用空间分集传输(同一个 UE的控制信令传输时一个 PRB pair内使用 2 个即以上的 DMRS 专有导频端口 ) 时, ePDCCH resource region确定为 Region 1 , 这里釆用的是 PRB比较多的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 31:
终端确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如, 当使用分布式传输(控制信令资源不连续)时, ePDCCH resource
region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当使用集中式传输(控制信令资源连续) 时, ePDCCH resource region 确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 32:
终端确定下 3套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 3 : PRB pair 1 , PRB air2, PRB pair 14, PRB pairl 5。
基站根据当前子帧 (需要传输控制信令的子帧) 下, 给 UE传输控制信 息的 ePDCCH传输技术来, 确定该子帧的 ePDCCH resource region。
例如, 当使用集中式传输(控制信令资源连续) 时, 且当前子帧号为奇 数时 , ePDCCH resource region确定为 Region2。
当使用集中式传输(控制信令资源连续) 时, 且当前子帧号为偶数时, ePDCCH resource region确定为 Region3。
当使用分布式传输(控制信令资源不连续)时, ePDCCH resource region 确定为 Regionl , 这里釆用的是 PRB比较多的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search
space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 33:
终端确定下 2套 4昊选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1, PRB pair3 , PRB pair6, PRB pair8 , PRB pairl 1,
PRB pairl3 , PRB pair 15 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 的子帧类型, 确定该子
†j¾的 ePDCCH resource region。
例如, 当前子帧为 TDD特殊子帧时, ePDCCH resource region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧不为 TDD特殊子帧时, ePDCCH resource region确定为 Region2 , 这里采用的是 PRB比较少的 region。
TDD特殊子帧为 TDD系统中上下行转换子帧, 由 DwPTS GP和 UpPTS 组成。
更具体的, 可以如表 2所示包括一些配置。 更进一步的, 可以根据是: 例如,当前子帧为 TDD特殊子帧, Normal CP时,如果配置 0,1 , 5,6时, ePDCCH resource region确定为 Regionl ,这里采用的是 PRB比较多的 region。
当前子帧为 TDD 特殊子帧, Normal CP 时, 如果配置 1,2,3,5,6 时, ePDCCH resource region确定为 Region2 ,这里采用的是 PRB比较少的 region。
当前不为 TDD特殊子帧, Normal CP时, ePDCCH resource region确定 为 Region2, 这里釆用的是 PRB比较少的 region。
当前子帧为 Extend CP时 ePDCCH resource region确定为 Regionl, 这里 采用的是 PRB比较多的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确
定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 34:
终端确定下 2套候选的 Epdcch resource Region, 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 , PRB pairl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1, PRB pair6 , PRB pairl 1, PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧 (需要传输控制信令的子帧) 的子帧类型, 确定该子 †j¾的 ePDCCH resource region。
当前子帧为釆用非 MBSFN 子帧时, ePDCCH resource region确定为
Region 1 , 这里釆用的是 PRB比较多的 region。
当前子帧为采用 MBSFN子帧时, ePDCCH resource region确定为 Region2, 这里采用的是 PRB比较少的 region。 或者
例如, 当前子帧为非 MBSFN子帧且为 Extend CP时, ePDCCH resource region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧为 MBSFN子帧或 Nromal CP子帧时, ePDCCH resource region 确定为 Region2 , 这里采用的是 PRB比较少的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search
space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 35:
终端确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair3 , PRB pair6 , PRB pair8 , PRB pairl 1 ,
PRB airl3 , PRB pairl 5 PRB pair 18。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
这里 ePDCCH resource region位置主要是指示频域位置, 时域位置可以 根据信令或老版本控制信令占用的符号数来确定,为多个连续的 OFDM符号。 基站根据当前子帧导频的发送情况, 确定该子帧的 ePDCCH resource region。
当前子帧存在 CRS发送时, ePDCCH resource region确定为 Regionl ,这 里釆用的是 PRB比较多的 region。
当前子帧为不发送 CRS子帧时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。 或者
例如, 当前子帧为发送 PRS 子帧时, ePDCCH resource region确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧为不发送 PRS 的子帧时, ePDCCH resource region 确定为 Region2, 这里釆用的是 PRB比较少的 region。 或者
例如, 当前子帧为发送 CRS和 CSI-RS子帧时, ePDCCH resource region 确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧为不发送 CRS或不发送 CSI-RS的子帧时, ePDCCH resource region确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH
candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 36:
终端确定下 2套 4昊选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl5。
Region 2: PRB pair 1 , PRB pair6, PRB pairl 1„
基站根据当前子帧同步信号的发送情况, 确定该子帧的 ePDCCH resource region。
当前子帧在 PRB pair 15不存在 PBCH发送时, ePDCCH resource region 确定为 Regionl, 这里采用的是 PRB比较多的 region。
当前子帧在 PRB pair 15存在 PBCH发送时, ePDCCH resource region确 定为 Region2, 这里釆用的是 PRB比较少的 region。
确定 Region后, 基站在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 37:
终端确定下 2套 4昊选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB air6, PRB pairl 1 , PRB pairl 5。
Region 2: PRB pair 1 , PRB air6, PRB pairl 1„
基站根据当前子帧同步信号的发送情况, 确定该子帧的 ePDCCH resource region。
当前子帧在 PRB pair 15不存在同步信号发送时, ePDCCH resource region
确定为 Regionl , 这里釆用的是 PRB比较多的 region。
当前子帧在 PRB pair 15存在同步信号发送时, ePDCCH resource region 确定为 Region2 , 这里釆用的是 PRB比较少的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
具体实施例 38:
终端确定下 2套候选的 Epdcch resource Region , 例如:
Region 1 : PRB pair 1 , PRB pair6 , PRB pairl 1 , PRB pairl 5 , PRB pair 2 , PRB air7 , PRB pair 12, PRB pairl6。
Region 2: PRB pair 2, PRB air7 , PRB pairl2, PRB pairl 6。
基站根据当前子帧子帧号, 确定该子帧的 ePDCCH resource region。 当前子帧子帧号为奇数, ePDCCH resource region确定为 Regionl , 这里 釆用的是 PRB比较多的 region。
当前子帧子帧号为偶数, ePDCCH resource region确定为 Region2 , 这里 釆用的是 PRB比较少的 region。
确定 Region后, 终端在该 Region中基站和终端约定或通过信令配置确 定的 search space中检测, 该 search space由多个聚合级别下多个 ePDCCH candidates构成。
终端根据其确定的 ePDCCH resource region,进一步的该 region中 search space包含的 ePDCCH candidates, 并对上述 ePDCCH candidates进行检测。
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。
当然, 本发明还可有其他多种实施例, 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
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。
工业实用性
上述技术方案可以适应动态变化的子帧的传输能力, 提升控制信令在 ePDCCH 上传输性能, 提高终端在控制信令搜索的准确性, 节省终端消耗。 因此本发明具有很强的工业实用性。
Claims
1、 一种控制信令的发送方法, 包括:
基站根据以下参数中的至少一种确定当前子帧下终端的增强物理下行控 制信道( ePDCCH ) 资源区域, 并在所述 ePDCCH资源区域中的部分或全部 资源上向所述终端发送控制信令:
所述当前子帧中资源块内或增强控制信道单元 ( eCCE )内或增强资源单 位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
2、如权利要求 1所述的发送方法, 其中,基站根据以下参数中的至少一 种确定当前子帧下终端的 ePDCCH资源区域的步骤包括:
所述基站根据所述参数中的至少两种确定当前子帧下所述终端的 ePDCCH资源区域。
3、 如权利要求 2所述的发送方法, 其中,
所述参数中的至少两种中包括所述当前子帧的子帧号。
4、 如权利要求 1所述的发送方法, 其中,
所述资源块是指物理资源块对或者虚拟资源块。
5、如权利要求 1所述的发送方法, 其中, 所述当前子帧的子帧类型至少 包括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
6、如权利要求 1所述的发送方法, 其中, 所述当前子帧内导频发送情况 至少包括以下情况之一:
所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
7、如权利要求 1所述的发送方法, 其中, 所述基站确定当前子帧下终端 的 ePDCCH资源区域的步骤包括:
所述基站从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域,
N为大于 0的零数。
8、如权利要求 7所述的发送方法, 其中, 所述基站确定当前子帧下终端 的 ePDCCH资源区域的步骤还包括:
所述基站将所述 N套候选 ePDCCH资源区域的信息通知至所述终端; 或者,所述基站根据所述终端的标识确定出所述 N套候选 ePDCCH资源 区域;
或者,所述基站将能够确定出所述 N套候选 ePDCCH资源区域的信息的 M套候选 ePDCCH资源区域的信息通知至所述终端, M为大于零的整数。
9、 如权利要求 7所述的发送方法, 其中,
所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
10、 一种基站, 所述基站包括增强物理下行控制信道(ePDCCH ) 资源 区域确定模块和发送模块, 其中:
所述 ePDCCH资源区域确定模块设置成:根据以下参数中的至少一种确 定当前子帧下终端的 ePDCCH资源区域:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号;
所述发送模块设置成:在所述 ePDCCH资源区域中的部分或全部资源上 向所述终端发送控制信令。
11、 如权利要求 10所述的基站, 其中, 所述 ePDCCH资源区域确定模 块设置成按照如下方式确定当前子帧下终端的 ePDCCH资源区域:
根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH资源区域。
12、 如权利要求 11所述的基站, 其中,
所述参数中的至少两种中包括所述当前子帧的子帧号。
13、 如权利要求 10所述的基站, 其中,
所述资源块是指物理资源块对或者虚拟资源块。
14、如权利要求 10所述的基站, 其中, 所述当前子帧的子帧类型至少包 括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
15、如权利要求 10所述的基站, 其中, 所述当前子帧内导频发送情况至 少包括以下情况之一:
所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态
信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
16、 如权利要求 10所述的基站, 其中, 所述 ePDCCH资源区域确定模 块设置成按照如下方式确定当前子帧下终端的 ePDCCH资源区域:
从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大 于 0的零数。
17、 如权利要求 16所述的基站, 其中, 所述发送模块还设置成: 将所述 N套候选 ePDCCH资源区域的信息通知至所述终端; 或者, 将能够确定出所述 N套候选 ePDCCH 资源区域的信息的 M 套候选 ePDCCH资源区域的信息和准则通知至所述终端, M为大于零的整数。
18、 如权利要求 16所述的基站, 其中, 所述 ePDCCH资源区域确定模 块设置成按照如下方式确定当前子帧下终端的 ePDCCH资源区域:
根据所述终端的标识确定出所述 N套候选 ePDCCH资源区域。
19、 如权利要求 16所述的基站, 其中,
所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
20、 一种控制信令的检测方法, 其中,
终端根据以下参数中的至少一种确定当前子帧下终端的增强物理下行控 制信道( ePDCCH ) 资源区域, 并在所述 ePDCCH资源区域中的部分或全部 资源上检测控制信令:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、
集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号。
21、如权利要求 20所述的检测方法, 其中, 终端根据以下参数中的至少 一种确定当前子帧下终端的 ePDCCH资源区域的步骤包括:
所述终端根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH 资源区域。
22、 如权利要求 21所述的检测方法, 其中,
所述参数中的至少两种中包括所述当前子帧的子帧号。
23、 如权利要求 20所述的检测方法, 其中,
所述资源块是指物理资源块对或者虚拟资源块。
24、如权利要求 20所述的检测方法, 其中, 所述当前子帧的子帧类型至 少包括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
25、如权利要求 20所述的检测方法, 其中, 所述当前子帧内导频发送情 况是至少包括以下情况之一:
所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
26、如权利要求 20所述的检测方法, 其中, 所述终端确定当前子帧下终 端的 ePDCCH资源区域的步骤包括:
从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大 于 0的零数。
27、如权利要求 26所述的检测方法, 其中, 所述终端确定当前子帧下终 端的 ePDCCH资源区域的步骤还包括:
所述终端从基站获知所述 N套候选 ePDCCH资源区域的信息; 或者,所述终端根据所述终端的标识确定出所述 N套候选 ePDCCH资源 区域;
或者, 所述终端根据从所述基站接收的 M套候选 ePDCCH资源区域的 信息和准则确定出所述 N套候选 ePDCCH资源区域的信息, M为大于零的 整数。
28、 如权利要求 26所述的检测方法, 其中,
所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
29、 一种终端, 所述终端包括增强物理下行控制信道(ePDCCH ) 资源 区域确定模块和检测模块, 其中:
所述 ePDCCH资源区域确定模块设置成:根据以下参数中的至少一种确 定当前子帧下终端的 ePDCCH资源区域:
所述当前子帧中资源块(RB ) 内或增强控制信道单元(eCCE ) 内或增 强资源单位组(eREG ) 内可承载控制信息的资源单元(RE ) 的个数;
所述终端需检测的聚合级别配置;
向所述终端传输控制信令的 ePDCCH传输方式类型, 包括: 单波束成型 传输方式即使用一个解调参考信号端口的单层传输技术、空间分集传输方式、 集中式传输、 分布式传输;
所述当前子帧的子帧类型;
所述当前子帧内导频发送情况;
所述当前子帧内同步信号发送情况;
所述当前子帧内物理广播信道(PBCH )发送情况;
所述当前子帧的子帧号;
所述检测模块设置成:在所述 ePDCCH资源区域中的部分或全部资源上 检测控制信令。
30、 如权利要求 29所述的终端, 其中, 所述 ePDCCH资源区域确定模 块设置成按照如下方式确定当前子帧下终端的 ePDCCH资源区域:
根据所述参数中的至少两种确定当前子帧下终端的 ePDCCH资源区域。
31、 如权利要求 30所述的终端, 其中,
所述参数中的至少两种中包括所述当前子帧的子帧号。
32、 如权利要求 29所述的终端, 其中,
所述资源块是指物理资源块对或者虚拟资源块。
33、如权利要求 29所述的终端, 其中, 所述当前子帧的子帧类型至少包 括以下类型之一:
时分复用 (TDD )特殊子帧类型、 非 TDD特殊子帧类型、 循环前缀类 型、 多播广播单频网子帧类型、 非多播广播单频网子帧类型。
34、如权利要求 29所述的终端, 其中, 所述当前子帧内导频发送情况是 至少包括以下情况之一:
所述当前子帧公共参考信号 (CRS )开销大小、 所述当前子帧信道状态 信息参考信号 (CSI-RS ) 的开销大小、 所述当前子帧定位参考信号 (PRS ) 开销大小。
35、 如权利要求 29所述的终端, 其中, 所述 ePDCCH资源区域确定模 块设置成按照如下方式确定当前子帧下终端的 ePDCCH资源区域:
从 N套候选 ePDCCH资源区域中确定一套 ePDCCH资源区域, N为大 于 0的零数。
36、 如权利要求 35所述的终端, 其中, 所述 ePDCCH资源区域确定模 块设置成按照如下方式确定当前子帧下终端的 ePDCCH资源区域:
从基站获知所述 N套候选 ePDCCH资源区域的信息; 或者,
根据所述终端的标识确定出所述 N套候选 ePDCCH资源区域; 或者,
根据从所述基站接收的 M套候选 ePDCCH资源区域的信息和准则确定 出所述 N套候选 ePDCCH资源区域的信息, M为大于零的整数。
37、 如权利要求 35所述的终端, 其中,
所述 N套候选 ePDCCH资源区域中存在重叠的资源;
N为 2时, 两套候选 ePDCCH资源区域存在子集关系;
N为 3时, 第一套候选 ePDCCH资源区域和第二套候选 ePDCCH资源 区域的并集为第一套候选 ePDCCH资源区域。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/386,881 US9883497B2 (en) | 2012-08-03 | 2013-08-02 | Control signaling transmission and detection methods, base station, and terminal |
EP13825362.0A EP2816852B1 (en) | 2012-08-03 | 2013-08-02 | Control signaling transmission and detection methods, base station, and terminal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210275429.2A CN103580837B (zh) | 2012-08-03 | 2012-08-03 | 控制信令发送、检测方法及基站及终端 |
CN201210275429.2 | 2012-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014019343A1 true WO2014019343A1 (zh) | 2014-02-06 |
Family
ID=50027183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/000910 WO2014019343A1 (zh) | 2012-08-03 | 2013-08-02 | 控制信令发送、检测方法及基站及终端 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9883497B2 (zh) |
EP (1) | EP2816852B1 (zh) |
CN (1) | CN103580837B (zh) |
WO (1) | WO2014019343A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018058433A1 (zh) * | 2016-09-29 | 2018-04-05 | 富士通株式会社 | 参考信号的传输装置、方法以及通信系统 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104041161B (zh) * | 2012-08-02 | 2018-01-02 | 华为技术有限公司 | 控制信道的传输、接收方法、基站和用户设备 |
CN103905173B (zh) * | 2014-04-21 | 2017-04-12 | 武汉邮电科学研究院 | 一种基于dtx和sinr的pdcch自适应传输方法和装置 |
US10064170B2 (en) * | 2015-04-03 | 2018-08-28 | Apple Inc. | Enhanced physical downlink control channel supporting common search space |
EP3331294B1 (en) * | 2015-11-13 | 2023-03-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method of allocating radio resource and device utilizing same |
WO2017171327A2 (ko) * | 2016-03-28 | 2017-10-05 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보를 송수신 하는 방법 및 이를 위한 장치 |
US20190349872A1 (en) * | 2016-09-29 | 2019-11-14 | Ntt Docomo, Inc. | User terminal and radio communication method |
PL3536093T3 (pl) * | 2016-11-04 | 2022-10-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Ulepszenia dla sygnałów referencyjnych mobilności do monitorowania łącza radiowego w systemie opartym na wiązce |
CN108271261B (zh) * | 2016-12-30 | 2023-06-27 | 华为技术有限公司 | 一种下行控制信道指示方法、终端设备及网络设备 |
WO2018164550A1 (ko) * | 2017-03-10 | 2018-09-13 | 엘지전자 주식회사 | 무선 통신 시스템에서 신호를 송신 또는 수신하는 방법 및 이를 위한 장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011126212A2 (en) * | 2010-04-07 | 2011-10-13 | Samsung Electronics Co., Ltd. | Method of transmitting and receiving control information based on spatial-multiplexing gain |
CN102315870A (zh) * | 2011-09-30 | 2012-01-11 | 中兴通讯股份有限公司 | 一种下行控制信息指示方法及装置 |
CN102368759A (zh) * | 2011-11-04 | 2012-03-07 | 中兴通讯股份有限公司 | 下行控制信道的发送方法及装置 |
CN102378366A (zh) * | 2011-09-30 | 2012-03-14 | 中兴通讯股份有限公司 | 一种控制信令的资源位置通知方法及系统 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010082877A1 (en) * | 2009-01-16 | 2010-07-22 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for pucch load control by pdcch restrictions |
CN102792601B (zh) | 2010-01-11 | 2015-04-08 | 黑莓有限公司 | 接入节点和用于操作接入节点的方法 |
US8908714B2 (en) * | 2010-03-31 | 2014-12-09 | Lg Electronics Inc. | Selective discontinuous reception method and related system and device |
EP2919545B1 (en) * | 2011-02-11 | 2016-09-28 | Interdigital Patent Holdings, Inc. | Device and method for an enhanced control channel (e-pdcch) |
EP2696548B1 (en) * | 2011-04-03 | 2020-03-04 | LG Electronics Inc. | Method and apparatus for transmitting/receiving downlink control channel in wireless communication system |
CN102186251B (zh) * | 2011-04-29 | 2016-09-28 | 中兴通讯股份有限公司 | 下行控制信息的传输方法及系统 |
US20120282936A1 (en) * | 2011-05-02 | 2012-11-08 | Research In Motion Limited | Methods of PDCCH Capacity Enhancement in LTE Systems |
CN102164416B (zh) * | 2011-05-03 | 2014-04-16 | 电信科学技术研究院 | 一种数据传输的方法、系统和设备 |
CN102170703A (zh) * | 2011-05-11 | 2011-08-31 | 电信科学技术研究院 | 一种物理下行控制信道上的信息收发方法及设备 |
US8923201B2 (en) * | 2011-06-15 | 2014-12-30 | Samsung Electronics Co., Ltd. | Extension of physical downlink control signaling in a communication system |
CN102256358B (zh) * | 2011-07-08 | 2013-11-20 | 电信科学技术研究院 | 一种数据传输和接收方法、装置及系统 |
CN102355732A (zh) * | 2011-08-12 | 2012-02-15 | 电信科学技术研究院 | 一种下行控制信息传输方法及装置 |
CN102404076B (zh) * | 2011-11-07 | 2014-12-10 | 电信科学技术研究院 | 信息发送及盲检方法和设备 |
CN102420685B (zh) * | 2011-11-07 | 2014-08-06 | 电信科学技术研究院 | 一种传输控制信息的方法及装置 |
CN102395206B (zh) * | 2011-11-08 | 2015-07-15 | 电信科学技术研究院 | 下行控制信息的传输方法和设备 |
CN102523627B (zh) * | 2011-12-08 | 2014-04-02 | 电信科学技术研究院 | 一种数据传输方法及装置 |
CN102611524B (zh) * | 2011-12-19 | 2015-02-04 | 电信科学技术研究院 | 一种传输信息的方法、系统及设备 |
CN102612094A (zh) * | 2012-04-01 | 2012-07-25 | 华为技术有限公司 | 一种控制信令资源单元确定方法、基站及用户设备 |
US20130301562A1 (en) * | 2012-05-09 | 2013-11-14 | Mediatek, Inc. | Methods for Resource Multiplexing of Distributed and Localized transmission in Enhanced Physical Downlink Control Channel |
EP2866510B3 (en) * | 2012-06-25 | 2019-01-02 | LG Electronics Inc. | Method for allocating resource for downlink control channel in wireless communication system, and apparatus therefor |
ES2971891T3 (es) * | 2012-08-02 | 2024-06-10 | Blackberry Ltd | Asignación de recurso de canal de control de enlace ascendente para un canal de control de enlace descendente mejorado de un sistema de comunicación móvil |
-
2012
- 2012-08-03 CN CN201210275429.2A patent/CN103580837B/zh not_active Expired - Fee Related
-
2013
- 2013-08-02 EP EP13825362.0A patent/EP2816852B1/en not_active Not-in-force
- 2013-08-02 WO PCT/CN2013/000910 patent/WO2014019343A1/zh active Application Filing
- 2013-08-02 US US14/386,881 patent/US9883497B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011126212A2 (en) * | 2010-04-07 | 2011-10-13 | Samsung Electronics Co., Ltd. | Method of transmitting and receiving control information based on spatial-multiplexing gain |
CN102315870A (zh) * | 2011-09-30 | 2012-01-11 | 中兴通讯股份有限公司 | 一种下行控制信息指示方法及装置 |
CN102378366A (zh) * | 2011-09-30 | 2012-03-14 | 中兴通讯股份有限公司 | 一种控制信令的资源位置通知方法及系统 |
CN102368759A (zh) * | 2011-11-04 | 2012-03-07 | 中兴通讯股份有限公司 | 下行控制信道的发送方法及装置 |
Non-Patent Citations (2)
Title |
---|
LG ELECTRONICS: "Discussion on PUCCH Resource for ePDCCH", 3GPP TSG RAN WG1 MEETING #69 RL-122314, 21 May 2012 (2012-05-21), XP050600577 * |
See also references of EP2816852A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018058433A1 (zh) * | 2016-09-29 | 2018-04-05 | 富士通株式会社 | 参考信号的传输装置、方法以及通信系统 |
CN109644062A (zh) * | 2016-09-29 | 2019-04-16 | 富士通株式会社 | 参考信号的传输装置、方法以及通信系统 |
US11700092B2 (en) | 2016-09-29 | 2023-07-11 | Fujitsu Limited | Apparatus and method for transmitting reference signal and communication system |
Also Published As
Publication number | Publication date |
---|---|
EP2816852A4 (en) | 2015-06-24 |
CN103580837B (zh) | 2019-01-22 |
US9883497B2 (en) | 2018-01-30 |
CN103580837A (zh) | 2014-02-12 |
US20150304991A1 (en) | 2015-10-22 |
EP2816852A1 (en) | 2014-12-24 |
EP2816852B1 (en) | 2016-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6105716B2 (ja) | E−pdcch伝送、ブラインド検出の方法および装置 | |
WO2014019343A1 (zh) | 控制信令发送、检测方法及基站及终端 | |
JP6313321B2 (ja) | 共通サーチスペース及びue固有サーチスペースをブラインド検出するための方法及び装置 | |
JP2015526974A (ja) | ブラインド検出方式の確認方法、ブラインド検出方法および装置 | |
WO2013180957A1 (en) | Hybrid automatic repeat request (harq) mapping for carrier aggregation (ca) | |
WO2013023541A1 (zh) | 一种下行控制信息传输方法及装置 | |
WO2013067845A1 (zh) | 下行控制信息的传输方法和设备 | |
WO2013104305A1 (zh) | 一种控制信道传输、接收方法及基站、用户设备 | |
WO2018141180A1 (zh) | 控制信息的传输方法、接收方法、装置、基站及终端 | |
WO2013091414A1 (zh) | 一种传输信息的方法、系统及设备 | |
CN102378366B (zh) | 一种控制信令的资源位置通知方法及系统 | |
WO2020253770A1 (zh) | 由用户设备执行的方法以及用户设备 | |
WO2013013643A1 (zh) | 控制信道的接收和发送方法和装置 | |
WO2013104253A1 (zh) | 一种控制信道资源映射方法、基站及用户设备 | |
JP2015537455A (ja) | 制御情報を伝送するための方法、基地局、及びユーザ機器 | |
WO2014110921A1 (zh) | ePHICH的发送方法及装置、接收方法及装置 | |
WO2017129035A1 (zh) | 一种下行控制信息的传输、检测方法及装置 | |
WO2015013894A1 (zh) | 控制信道的检测与发送方法及设备 | |
TW201417606A (zh) | 配置用於增強物理下行控制頻道(ePDCCH)的增強控制頻道元件(eCCE)的方法 | |
CN103582131B (zh) | 一种ePDCCH盲检测次数的配置方法及装置 | |
WO2014180157A1 (zh) | 一种下行控制信令传输方法及装置 | |
US9313006B2 (en) | Methods and apparatus for resource element mapping | |
US10680867B2 (en) | Control channel transmission method, network device, and terminal device | |
WO2021160034A1 (zh) | 由用户设备执行的方法以及用户设备 | |
CN103684674B (zh) | 一种检测控制信令以及实现控制信令检测的方法和装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13825362 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2013825362 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013825362 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14386881 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |