WO2015103763A1 - Procédé, dispositif et système de configuration pour des ressources de signalisation - Google Patents

Procédé, dispositif et système de configuration pour des ressources de signalisation Download PDF

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Publication number
WO2015103763A1
WO2015103763A1 PCT/CN2014/070418 CN2014070418W WO2015103763A1 WO 2015103763 A1 WO2015103763 A1 WO 2015103763A1 CN 2014070418 W CN2014070418 W CN 2014070418W WO 2015103763 A1 WO2015103763 A1 WO 2015103763A1
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WIPO (PCT)
Prior art keywords
epdcch
subframe
crs
pdcch
indication information
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PCT/CN2014/070418
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English (en)
Chinese (zh)
Inventor
薛丽霞
李强
大卫·马瑞泽
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/070418 priority Critical patent/WO2015103763A1/fr
Priority to CN201480001643.6A priority patent/CN105264988B/zh
Publication of WO2015103763A1 publication Critical patent/WO2015103763A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, device, and system for configuring signaling resources.
  • time-frequency resource In the Long Term Evolution (LTE) system, some of the wireless bands are used for signal transmission.
  • the time and frequency occupied by the signal transmission of the LTE system is called time-frequency resource.
  • time-frequency resources are time-divided into frames of different lengths such as a frame, a subframe, and an Orthogonal Frequency Division Multiplexing (OFDM) symbol, where one frame The duration is 10ms, one frame contains 10 subframes, and one subframe time is 1 ms.
  • One subframe can be divided into two slots (slots), and each slot is divided into multiple OFDM symbols.
  • the system bandwidth occupied by LTE is divided into units called a resource block PRB pair (Physical Resource Block Pair).
  • one subframe is divided into 50 PRB pair units in the frequency domain, and each PRB is divided into multiple resource units RE (Resource Element).
  • RE Resource Element
  • multiple channels and reference signals need to be transmitted on the time-frequency resources.
  • One of the control channels uses the physical downlink control channel PDCCH (Physical Downlink Control Channel) as an example, and the reference signal uses the cell common reference signal CRS (Cell-specific). Reference Signal) is an example.
  • PDCCH Physical Downlink Control Channel
  • CRS Cell-specific. Reference Signal
  • the channel transmitted in the LTE system further includes an enhanced control channel EPDCCH (Enhanced PDCCH), which is different from the PDCCH in that the PDCCH uses the first 1-4 OFDM symbols of one subframe, and the EPDCCH uses the first 1-4 symbols. OFDM symbols outside the OFDM symbol, and the PDCCH is occupied by the entire system bandwidth, and the EPDCCH uses only a few PRB pairs.
  • EPDCCH enhanced PDCCH
  • one base station can configure the UE (User Equipment) 1 to 2 EPDCCH set sets, each EPDCCH set includes several PRB pairs.
  • the base station will inform the UE which number of PRB pairs each EPDCCH set occupies.
  • the Downlink Control Information (DCI) sent to a UE is sent in some PRB pairs in the EPDCCH set configured for this UE.
  • the base station uses the high layer signaling to indicate the resource mapping information of each EPDCCH set of the UE, including: the number of PRBs included in the set, and the specific number of the set PRBs, The RE information in set that cannot be used due to the transmission of CRS and the number of starting OFDM symbols of this set. After the UE obtains the resource mapping information of each EPDCCH set, the EPDCCH is correctly demodulated and received.
  • the PDCCH and the CRS appear in each subframe in the resource mapping manner.
  • the PDCCH and the CRS are fixed only in certain subframes (for example, subframes 0 and 5 in each frame), and the remaining PDCCHs and CRSs will be in the Downlink DTX (downlink discontinuous transmission). Random occurrences in the remaining sub-frames. If only the CRS information that needs to be avoided and the number of starting OFDM symbols of the current set are mapped to the EPDCCH according to the current technology, the current subframe set indicated by the high layer signaling of the base station is mapped to the EPDCCH. The EPDCCH resource mapping cannot be matched, causing the problem that the EPDCCH cannot be correctly received.
  • Embodiments of the present invention provide a method, a device, and a system for configuring a signaling resource, which solve the problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the EPDCCH.
  • a method for configuring a signaling resource includes: generating, by a base station, resource indication information of an enhanced enhanced physical downlink control channel EPDCCH;
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH, where the CRS configuration parameter is used to indicate the
  • the PDCCH configuration parameter includes the subframe information in which the PDCCH is located and the start position of the PDCCH in each subframe; the CRS configuration parameter includes the subframe information in which the CRS is located and the CRS in each subframe.
  • the resource indication information of the EPDCCH is sent to the user equipment, and the user equipment is instructed to determine, according to the resource indication information of the EPDCCH, a resource unit used for transmitting the EPDCCH in each subframe signaling resource.
  • the CRS configuration parameter includes: a subframe set, a port number of the CRS corresponding to the subframe set, and a frequency domain offset position;
  • the PDCCH configuration parameter The method includes: a subframe set and a starting symbol number of the orthogonal frequency division multiplexing OFDM symbol occupied by the corresponding EPDCCH in the subframe.
  • the second possible implementation manner includes: the resource indication information that is generated by the base station to generate the enhanced enhanced physical downlink control channel (EPDCCH), including: When the PDCCH is included in the first subframe set, the resource indication information of the EPDCCH includes a first subframe set in which the PDCCH is located, and a start symbol number of the OFDM symbol occupied by the PDCCH, so that the user The device correctly receives the EPDCCH according to the resource indication information of the EPDCCH; when the CRS is included only in the first subframe set, the resource indication information of the EPDCCH includes the number of ports of the CRS, the frequency domain offset position, and/or There is the first set of subframes of the CRS.
  • EDCCH enhanced enhanced physical downlink control channel
  • the third possible implementation manner includes: when the PDCCH is not included in the first subframe set, the resource indication information of the first EPDCCH includes the non-the first subframe set a subframe in which the PDCCH is occupied, and a number of start symbols of the OFDM symbol occupied by the PDCCH; when the CSR is not included in the first subframe set, the resource indication information of the second EPDCCH includes the non-described
  • the first subframe is a set of subframes occupied by the CRS, and a port number and/or a frequency domain offset position used by the CRS, so that the user equipment root The EPDCCH is correctly received according to the resource indication information of the EPDCCH.
  • the fourth possible implementation manner includes: the base station generating the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH, where: the configuring, by the base station, the resource mapping for multiple EPDCCH set sets And if the CRS and the PDCCH are determined to be included in the at least one subframe, the at least one subframe is set in the subframe information; or
  • At least one of the other subframes is set in the subframe information, and at least one of the other subframes is not set in the subframe. In the sub-frame information.
  • the second aspect provides a method for configuring a signaling resource, including:
  • the user equipment receives the resource indication information of the physical downlink control channel EPDCCH sent by the base station;
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate the resource unit occupied by the EPDCCH.
  • the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of a PDCCH in each subframe;
  • the CRS configuration parameter includes The subframe information in which the CRS is located and the resource unit information occupied by the CRS in each subframe;
  • the user equipment receives the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH.
  • the first possible implementation manner includes: receiving, by the user equipment, the enhanced physical downlink control channel (EPDCCH) according to the resource indication information of the EPDCCH, including: The EPDCCH is received according to the resource indication information of the EPDCCH, where the PDCCH is occupied by the resource indication information of the EPDCCH, where the PDCCH of the EPDCCH is only in the first subframe set, and the PDCCH is occupied by the resource indication information of the EPDCCH.
  • EPDCCH enhanced physical downlink control channel
  • the method includes: receiving, by the user equipment, the enhanced physical downlink control channel (EIPDCCH) according to the resource indication information of the EPDCCH, where: the resource indication information of the received first EPDCCH
  • the resource indication information of the received first EPDCCH When the first subframe set of the middle eNB includes the PDCCH, the EPDCCH is received according to the resource indication information of the first EPDCCH, where the resource indication information of the first EPDCCH includes a subframe that is occupied by the PDCCH is not a subframe in the first subframe set, and a start symbol number of the OFDM symbol occupied by the PDCCH; when the first subframe set in the resource indication information of the received second EPDCCH does not include the CRS, Receiving, according to the resource indication information of the second EPDCCH, the resource indication information of the second EPDCCH, where the subframe occupied by the CRS is a subframe that is not in the first subframe set, and the CRS Number of occupied ports and/or frequency domain offset locations.
  • the user equipment receives an enhanced physical downlink control channel (EPDCCH), including: when the base station is multiple EPDCCH set sets When the resource mapping is configured, if the CRS and the PDCCH are determined to be included in the at least one subframe, the user equipment includes the CRS and the set on each of the EPDCCH set sets received according to the resource indication information of the EPDCCH.
  • EPDCCH enhanced physical downlink control channel
  • the user equipment does not have the CRS and the PDCCH on each of the EPDCCH set sets received according to the resource indication information of the EPDCCH; or ,
  • the user equipment receives, according to the resource indication information of the EPDCCH, at least one of the EPDCCHs in the received multiple EPDCCH set sets.
  • the set set has the CRS and the PDCCH, and the received at least one of the EPDCCH set sets does not have the CRS and the PDCCH.
  • a base station including: a configuration unit, configured to generate resource indication information of an enhanced enhanced physical downlink control channel EPDCCH; where the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where The PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH, where the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid; the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and each a start position of the PDCCH in the subframe; the CRS configuration parameter includes subframe information in which the CRS is located, and resource unit information occupied by the CRS in each subframe;
  • a communication unit configured to send the resource indication information of the EPDCCH generated by the configuration unit to the user equipment, where the user equipment is instructed to determine, according to the resource indication information of the EPDCCH, that each subframe signaling resource is used for transmitting an EPDCCH Resource unit.
  • the CRS configuration parameter includes: a subframe set, a port number of the CRS corresponding to the subframe set, and a frequency domain offset position;
  • the PDCCH configuration parameter The method includes: a subframe set and a starting symbol number of the orthogonal frequency division multiplexing OFDM symbol occupied by the corresponding EPDCCH in the subframe.
  • the configuration unit is specifically configured to: when the first subframe set includes the The PDCCH, the resource indication information of the EPDCCH includes a first subframe set in which the PDCCH is located, and a start symbol number of the OFDM symbol occupied by the PDCCH, so that the user equipment correctly receives the resource indication information according to the EPDCCH.
  • EPDCCH when the CRS is included only in the first subframe set, the resource indication information of the EPDCCH includes the number of ports of the CRS, a frequency domain offset position, and/or the first subframe in which the CRS exists. set.
  • the configuration unit is specifically configured to: when the PDCCH is not included in the first subframe set, the resource indication information of the first EPDCCH includes a subframe that is not occupied by the PDCCH in the first subframe set, and a starting symbol number of an OFDM symbol occupied by the PDCCH; when the first subframe group does not include the CRS, the second EPDCCH
  • the resource indication information includes a subframe that is not occupied by the CRS in the first subframe set, and a port number and/or a frequency domain offset location used by the CRS, so that the user equipment according to the resource indication information of the EPDCCH Receive EPDCCH correctly.
  • the configuration unit is specifically configured to: when the base station configures a resource mapping for multiple EPDCCH set sets, if at least one subframe is determined to include the And the CPDCCH and the PDCCH, the at least one subframe is set in the subframe information; or, if the CRS and the PDCCH are determined not to be included in at least one subframe, all subframes are not set. Or in the subframe information; or, if it is not determined in the other subframe whether the CRS and the PDCCH are included, at least one other subframe is set in the subframe information, And at least one of the other subframes is not set in the subframe information.
  • a user equipment including:
  • a communication unit configured to receive resource indication information of a physical downlink control channel EPDCCH sent by the base station, where the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate that the EPDCCH is occupied a location of the resource unit, the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of a PDCCH in each subframe;
  • the configuration parameters include the subframe information in which the CRS is located and the resource unit information occupied by the CRS in each subframe.
  • the configuration unit configured to receive, according to the resource indication information of the EPDCCH received by the communication unit, an enhanced physical downlink control channel (EPDCCH).
  • the configuration unit is specifically configured to: when the PDCCH of the EPDCCH is received, only the first subframe set exists in the resource indication information of the EPDCCH, according to The resource indication information of the EPDCCH receives the EPDCCH, where the number of subframes in the first subframe set occupied by the PDCCH in the resource indication information of the EPDCCH, and the start of an OFDM symbol occupied by the PDCCH And receiving, according to the resource indication information of the EPDCCH, the EPDCCH, where the resource indication information of the EPDCCH is included in the resource indication information of the EPDCCH.
  • the subframe occupied by the CRS is a subframe in the first subframe set, and a port number and/or a frequency domain offset position occupied by the CRS.
  • the configuration unit is specifically configured to: when the first subframe set of the received first EPDCCH does not include the PDCCH in the resource indication information of the received first EPDCCH Receiving according to the resource indication information of the first EPDCCH The EPDCCH, where the resource indication information of the first EPDCCH includes the number of subframes occupied by the PDCCH, and the number of start symbols of the OFDM symbol occupied by the PDCCH; when the resource indication information of the received second EPDCCH is not When the first subframe set includes the CRS, the EPDCCH is received according to the resource indication information of the second EPDCCH, where the resource indication information of the second EPDCCH includes the subframe occupied by the CRS is not the The subframe in the first subframe set, and the number of ports and/or frequency domain offset positions occupied by the C
  • the configuration unit is specifically configured to: when the base station configures resource mapping for multiple EPDCCH set sets, if at least one subframe is determined to be included And the CRS and the PDCCH, where the user equipment includes the CRS and the PDCCH according to each of the EPDCCH set sets received according to the resource indication information of the EPDCCH; or, if at least one subframe is determined not to Include the CRS and the PDCCH, and the user equipment does not have the CRS and the PDCCH on each of the EPDCCH set sets received according to the resource indication information of the EPDCCH; or
  • the user equipment receives, according to the resource indication information of the EPDCCH, at least one of the EPDCCHs in the received multiple EPDCCH set sets.
  • the set set has the CRS and the PDCCH, and the received at least one of the EPDCCH set sets does not have the CRS and the PDCCH.
  • a base station including: a processor and a memory connected through a data bus, and at least one communication interface respectively connected to the processor and the memory, where
  • the processor is configured to generate an enhanced enhanced physical downlink control channel
  • the resource indication information of the EPDCCH where the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH, where the CRS configuration parameter is used.
  • a resource unit that indicates that the EPDCCH needs to be circumvented the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of a PDCCH in each subframe;
  • the CRS configuration parameter includes a subframe information in which the CRS is located, and each subframe Resource unit information occupied by the CRS;
  • the processor is further configured to send the resource indication information of the EPDCCH to the user equipment by using the at least one communication interface, where the user equipment is instructed to determine, according to the resource indication information of the EPDCCH, that each subframe signaling resource is used for The resource unit occupied by the EPDCCH.
  • the CRS configuration parameter includes: a subframe set, a port number of the CRS corresponding to the subframe set, and a frequency domain offset position;
  • the PDCCH configuration parameter The method includes: a subframe set and a starting symbol number of the orthogonal frequency division multiplexing OFDM symbol occupied by the corresponding EPDCCH in the subframe.
  • the second possible implementation manner specifically includes: the processor, specifically:
  • the resource indication information of the EPDCCH includes a first subframe set in which the PDCCH is located, and a start symbol number of the OFDM symbol occupied by the PDCCH, so that the user
  • the device correctly receives the EPDCCH according to the resource indication information of the EPDCCH; when the CRS is included only in the first subframe set, the resource indication information of the EPDCCH includes the number of ports of the CRS, the frequency domain offset position, and/or There is the first set of subframes of the CRS.
  • the processor is specifically configured to: when the PDCCH is not included in the first subframe set, the resource indication information of the first EPDCCH includes a subframe that is not occupied by the PDCCH in the first subframe set, and a starting symbol number of an OFDM symbol occupied by the PDCCH;
  • the resource indication information of the second EPDCCH includes the subframe occupied by the CRS that is not in the first subframe set, and the number of ports used by the CRS And the frequency domain offset position, so that the user equipment correctly receives the EPDCCH according to the resource indication information of the EPDCCH.
  • the processor is specifically configured to: when the base station configures resource mapping for multiple EPDCCH set sets, if at least one subframe is determined to be included And the CRS and the PDCCH, the at least one subframe is set in the subframe information; or, if the CRS and the PDCCH are determined not to be included in at least one subframe, all subframes are not Set in the subframe information; or,
  • At least one of the other subframes is set in the subframe information, and at least one of the other subframes is not set in the subframe. In the sub-frame information.
  • a user equipment including: a processor and a memory connected through a data bus, and at least one communication interface respectively connected to the processor and the memory, wherein the processor is configured to pass at least one
  • the communication interface receives the resource indication information of the physical downlink control channel EPDCCH sent by the base station; the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a resource unit occupied by the EPDCCH.
  • the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of a PDCCH in each subframe;
  • the CRS configuration parameter includes The subframe information in which the CRS is located and the resource unit information occupied by the CRS in each subframe;
  • the processor configured to be used according to the EPDCCH received by the communication unit
  • the resource indication information receives the enhanced physical downlink control channel EPDCCH.
  • the processor is specifically configured to:
  • the EPDCCH is received by the at least one communication interface according to the resource indication information of the EPDCCH, The number of subframes in the first subframe set occupied by the PDCCH in the resource indication information of the EPDCCH, and the number of start symbols of the OFDM symbol occupied by the PDCCH;
  • the subframe occupied by the CRS in the indication information is a subframe in the first subframe set, and a port number and/or a frequency domain offset position occupied by the CRS.
  • the processor is specifically configured to:
  • the EPDCCH Receiving, according to the resource indication information of the first EPDCCH, the EPDCCH, where the first subframe set includes the PDCCH in the resource indication information of the first EPDCCH that is received by the at least one communication interface, where The resource indication information of the first EPDCCH includes a subframe that is occupied by the PDCCH is not a subframe in the first subframe set, and a starting symbol number of an OFDM symbol occupied by the PDCCH;
  • the EPDCCH Receiving, according to the resource indication information of the second EPDCCH, the EPDCCH, where the first subframe set includes the CRS in the resource indication information of the second EPDCCH that is received by the at least one communication interface, where
  • the resource indication information of the second EPDCCH includes a subframe occupied by the CRS, a subframe that is not in the first subframe set, and a port number and/or a frequency domain offset location occupied by the CRS.
  • the processor is specifically configured to: when the base station configures resource mapping for multiple EPDCCH set sets, if at least Determining, in a subframe, the CRS and the PDCCH, where the user equipment receives the CRS and the PDCCH according to each of the EPDCCH set sets received according to the resource indication information of the EPDCCH; or, if at least If the CRS and the PDCCH are not included in a subframe, the user equipment does not have the CRS and the PDCCH on each of the EPDCCH set sets received according to the resource indication information of the EPDCCH; or
  • the user equipment receives, according to the resource indication information of the EPDCCH, at least one of the EPDCCHs in the received multiple EPDCCH set sets.
  • the set set has the CRS and the PDCCH, and the received at least one of the EPDCCH set sets does not have the CRS and the PDCCH.
  • a communication system including: a base station and a user equipment, where
  • the base station is the base station according to any one of the third aspect and the third aspect; the user equipment is the user equipment of the fourth aspect, and any one of the possible implementation manners of the fourth aspect; Or the base station is the base station according to any one of the fifth aspect and the fifth aspect; the user equipment is the user of the sixth aspect and the possible implementation manner of any one of the sixth aspects device.
  • the base station generates resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment
  • the resource unit RE used for transmitting the EPDCCH in the signaling resource is determined according to the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH.
  • FIG. 1 is a schematic flowchart of a method for configuring a signaling resource according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another method for configuring a signaling resource according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for configuring a signaling resource according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for configuring a signaling resource according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a base station according to another embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. Some embodiments, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the invention provides a method for configuring signaling resources, which is suitable for long-term evolution
  • the time and frequency occupied by the signal transmission of the LTE system is called time-frequency resource, and the reference signal is also transmitted on the time-frequency resource, and the transmission of the reference signal is mainly used for Receiver demodulation, channel estimation, etc.; in addition, time-frequency resources are also used to transmit various channels, including data channels and control channels.
  • a control channel is called a Physical Downlink Control Channel (PDCCH), and a reference signal is called a Cell-specific Reference Signal (CRS).
  • the channel transmitted in the LTE system further includes an enhancement.
  • the EPDCCH Enhanced PDCCH
  • the EPDCCH is also used to transmit downlink control signaling compared to the PDCCH described above.
  • the time-frequency resource used by the EPDCCH is different from the PDCCH.
  • the PDCCH uses the first 1-4 of one subframe. OFDM symbols, and EPDCCH will use the following OFDM symbols.
  • the PDCCH is the entire system bandwidth, and the EPDCCH only occupies several PRB pairs (Physical Resource Block Pairs) in the entire system bandwidth.
  • PRB pairs Physical Resource Block Pairs
  • the OFDM symbol exists in each subframe, so once the UE receives the resource mapping information of the EPDCCH set, the EPDCCH resource mapping is performed according to the configuration here in all the subframes, and in the downlink intermittent transmission Downlink DTX. , the CRS and PDCCH of each subframe are different.
  • the embodiment of the present invention provides a method for configuring a signaling resource.
  • the base station side as shown in FIG. 1 , specifically includes the following steps:
  • the base station generates resource indication information of the enhanced enhanced physical downlink control channel EPDCCH.
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate that the EPDCCH is occupied.
  • the location of the resource unit, the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of the PDCCH in each subframe;
  • the CRS configuration parameter includes a CRS Subframe information and resource unit information occupied by CRS in each subframe.
  • the base station configures a resource mapping for the EPDCCH for the user equipment UE (User Equipment) according to different subframes.
  • the EPDCCH configuration parameters are respectively configured according to different subframes: the configuration information of the CRS and the PDCCH in each subframe is a resource mapping of the EPDCCH, and the configuration information of the CRS and the PDCCH can prevent the UE from occupying the CRS when receiving the EPDCCH.
  • the resource unit RE Resource Element
  • the system bandwidth occupied by LTE is divided into units called a resource block (PB) (Physical Resource Block Pair).
  • PB Physical Resource Block Pair
  • one subframe of the cell is divided into units of 50 PRB pairs in the frequency domain, and each PRB is divided into multiple resource units RE (Resource Element).
  • the PDCCH uses the first 1 to 4 OFDM symbols of one subframe, and the EPDCCH uses the OFDM symbols except the first 1 to 4 OFDM symbols, and the PDCCH is used to occupy the entire system bandwidth, and the EPDCCH only uses a number of OFDM symbols. PRB pair.
  • the base station sends the resource indication information of the EPDCCH to the user equipment, and the user equipment is instructed to determine, according to the resource indication information of the EPDCCH, the resource unit used for transmitting the EPDCCH in each subframe signaling resource.
  • the method for configuring the signaling resource provided by the embodiment of the present invention, the base station generates the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is enhanced according to the enhancement type.
  • the resource indication information of the physical downlink control channel EPDCCH determines the resource unit RE used for transmitting the EPDCCH in the signaling resource. The problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the EPDCCH is solved.
  • the embodiment of the present invention provides a method for configuring a signaling resource.
  • the user equipment side as shown in FIG. 2, specifically includes the following steps: 201.
  • the user equipment receives resource indication information of a physical downlink control channel EPDCCH sent by the base station.
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH, where the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes subframe information in which the PDCCH is located and a start position of the PDCCH in each subframe.
  • the CRS configuration parameter includes subframe information in which the CRS is located and resource unit information occupied by the CRS in each subframe.
  • the user equipment receives the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the user equipment receives the resource indication information of the EPDCCH, and is able to learn the information in the 0th and 5th subframes according to the resource indication information of the EPDCCH, and therefore receives the PDCCH.
  • the user equipment will avoid the OFDM portion occupied by the occupied PDCCH. If the resource indication information of the EPDCCH corresponding to the CRS indicates that the CRS is in the 0th or 5th subframe, and the number of ports of the CRS is known, and the frequency domain offset frequency shift, the user equipment receives the resource indication information of the EPDCCH.
  • the base station According to the resource indication information of the EPDCCH, it can be learned that in the 0th and 5th subframes, the EPDCCH configuration resource mapping does not include the RE part occupied by the CRS.
  • the method for configuring the signaling resource provided by the embodiment of the present invention, the base station generates the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is enhanced according to the enhancement type.
  • the resource indication information of the physical downlink control channel EPDCCH determines the resource unit RE used for transmitting the EPDCCH in the signaling resource. Solved because it cannot be accurate The problem of resource mapping for the EPDCCH, so that it cannot be correctly transmitted.
  • the embodiment 1 can be based on the embodiment shown in FIG. 1 or FIG. 2, and the embodiment of the present invention provides a method for configuring signaling resources.
  • the base station is configured according to FIG. 3
  • the configuration of different subframes is the process of configuring resource mapping for EPDCCH. The specific steps are as follows:
  • the base station side configures the first configuration information corresponding to the PDCCH and the second configuration information corresponding to the CRS according to the physical downlink control channel PDCCH (Physical Downlink Control Channel) and the cell common reference signal CRS (Cell-specific Reference Signal), including two
  • PDCCH Physical Downlink Control Channel
  • CRS Cell-specific Reference Signal
  • the base station generates resource indication information of the EPDCCH according to the starting symbol number of the OFDM symbol occupied by the PDCCH in each subframe.
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH, where the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes subframe information in which the PDCCH is located and a start position of the PDCCH in each subframe.
  • the CRS configuration parameter includes subframe information in which the CRS is located and resource unit information occupied by the CRS in each subframe.
  • the resource indication information of the EPDCCH is used to indicate that the user equipment avoids resources occupied by the PDCCH when receiving the EPDCCH, where the PDCCH occupies only the first one of the subframes when allocating the OFDM occupied by each resource block PRB pair - 3 OFDM symbols.
  • the resource indication information of the EPDCCH generated according to the PDCCH may be, for example, the length of one frame.
  • the starting symbol number of the PDCCH is OFDM 1 ;
  • the PDCCH starts The starting symbol number is OFDM2. So that the user equipment receives the EPDCCH by using the resource indication information of the EPDCCH. The OFDM symbol occupied by the PDCCH in the first configuration information is avoided.
  • the base station generates resource indication information of the EPDCCH according to the number of ports of the CRS and the frequency shift position in each frame.
  • the resource indication information of the EPDCCH is used to indicate that the user equipment avoids the resources occupied by the CRS when receiving the EPDCCH, where the resource indication information of the EPDCCH generated according to the CRS may be, for example, the length of one frame, in the subframe.
  • the port number 1 of the CRS and the frequency domain offset frequency shift 1 of the CRS in the subframe set 2, that is, except the 0th subframe and the 5th subframe
  • the other subframes (such as the first subframe to the fourth subframe and the sixth subframe to the ninth subframe), the port number 2 of the CRS and the frequency domain offset frequency shift2 of the CRS.
  • the user equipment receives the EDPCCH according to the resource indication information of the EPDCCH, the resource occupied by the CRS in the resource indication information of the EPDCCH is avoided.
  • the resource indication information of the EPDCCH includes the first subframe set in which the PDCCH is located and the starting symbol number of the OFDM symbol occupied by the PDCCH. It is assumed here that the PDCCH exists only in the first subframe set, where the resource indication information of the EPDCCH includes one or a combination of the subframe in which the PDCCH is located and the number of starting symbols of the occupied OFDM symbol, specifically taking the length of one frame as an example, assuming It is stipulated that the PDCCH exists in the 0th subframe and the 5th subframe, and the PDCCH is located in the resource indication information of the EPDCCH in the resource indication information of the EPDCCH. 0 subframe and 5th subframe), one or a combination of the number of starting symbols OFDM occupied by the PDCCH in the PRB pair in one subframe.
  • the resource indication information of the EPDCCH includes a port number of the CRS, a frequency domain offset position, and/or a first subframe set in which the CRS exists. It is assumed here that the CRS exists only in the first subframe set, specifically taking the length of one frame as an example. It is assumed that CRS exists in the 0th subframe and the 5th subframe, and the other is not included in the 0th subframe and the 5th subframe. CRS, which is included in the resource indication information of the EPDCCH.
  • a subframe in which the CRS is located (eg, the CRS is located in the 0th subframe and the 5th subframe), a number of ports in the CRS in one subframe, and a frequency shift of the CRS in a subframe at least one or at least two Combination of one.
  • the base station sends the resource indication information of the EPDCCH to the user equipment, and the user equipment is instructed by the user equipment to determine, according to the resource indication information of the EPDCCH, a resource unit used for transmitting the EPDCCH in each subframe signaling resource.
  • the resource indication information of the EPDCCH that is sent by the base station to the user equipment may be based on the resource indication information of the EPDCCH including the PDCCH and/or the CRS according to the specific requirement of the user equipment.
  • the user equipment receives the resource indication information of the physical downlink control channel EPDCCH sent by the base station.
  • the user equipment receives the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH.
  • the user equipment configures the EDPCCH according to the configuration of the PDCCH corresponding to the resource indication information of the EPDCCH and/or the configuration of the CRS, and avoids the misuse of the resources occupied by the PDCCH and/or the CRS when receiving the EPDCCH, thereby accurately receiving the EPDCCH.
  • the user equipment configures resource mapping for the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH, and the specific steps are as follows:
  • the EPDCCH is received according to the resource indication information of the EPDCCH.
  • the PDCCH is present in the 0th subframe and the 5th subframe
  • the other subframes are not included in the 0th subframe and the 5th subframe
  • the subframe is located according to the PDCCH (eg, the PDCCH is located in the 0th subframe and the PDCCH) 5 subframes
  • the PDCCH occupied by the PDCCH is followed by the EPDCCH configuration. OFDM.
  • the EPDCCH is received according to the resource indication information of the EPDCCH.
  • the subframes occupied by the CRS in the resource indication information of the EPDCCH are the subframes in the first subframe set, and the number of ports and/or frequency domain offset positions occupied by the CRS.
  • the number of ports of the CRS in one subframe and the frequency shift of the CRS in one subframe, the frequency shift is configured for the EPDCCH, since the subframe in which the CRS is located and the CRS are in one subframe
  • the number of ports and the frequency shift of the CRS in one subframe are frequency shift.
  • the OFDM occupied by the PDCCH of the same subframe and the OFDM part occupied by the CRS are OFDM required to be occupied by the EPDCCH configuration.
  • the method for configuring the signaling resource provided by the embodiment of the present invention, the base station generates the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is enhanced according to the enhancement type.
  • the resource indication information of the physical downlink control channel EPDCCH determines the resource unit RE used for transmitting the EPDCCH in the signaling resource. The problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the EPDCCH is solved.
  • the specific steps are as follows: al.
  • the base station configures resource mapping for multiple EPDCCH set sets, if at least one subframe is determined to include the CRS and the PDCCH, At least one subframe is set in the subframe information.
  • the length of one frame is taken as an example.
  • the base station configures resource mapping for multiple EPDCCH sets, the base station determines that there are CRS and PDCCH in the 0th subframe and the 5th subframe, and then configures the 0th EPDCCH.
  • the CRS and the PDCCH are configured in both the 0th subframe and the 5th subframe in the set set and the 1st EPDCCH set set. Therefore, when the user equipment receives the EPDCCH corresponding to the PDCCH and the CRS generated according to the determination of the presence of the CRS and the PDCCH on the 0th subframe and the 5th subframe,
  • the resource mapping of the EPDCCH is configured according to the resource indication information of the EPDCCH.
  • A2 When the base station configures the resource mapping for the multiple EPDCCH set sets, if the CRS and the PDCCH are determined to be included in the at least one subframe, the user equipment includes the CRS and the PDCCH according to the EPDCCH set received by the resource indication information of the EPDCCH. b l. If it is determined in at least one subframe that the CRS and the PDCCH are not included, all subframes are not set in the subframe information.
  • the base station determines that there is no CRS and PDCCH on all subframes except the 0th subframe and the 5th subframe, the CES and the PDCCH are not configured in the OEPDCCH set set and the other subframes in the 1st EPDCCH set set. Therefore, when the user equipment receives the resource indication information of the EPDCCH corresponding to the CPDCCH and the PDCCH generated in the other subframes except the 0th subframe and the 5th subframe, the EPDCCH is determined according to the EPDCCH.
  • the resource indication information configures a resource mapping of the EPDCCH.
  • the user equipment does not have the CRS and the PDCCH on each EPDCCH set received according to the resource indication information of the EPDCCH.
  • At least one other subframe is set in the subframe information, and at least one other subframe is not set in the subframe information. It is assumed here that the base station cannot determine whether there is a CRS or a PDCCH except for the subframes other than the 0th subframe and the 5th subframe, and it is assumed that the CRS and the PDCCH exist in the 0th subframe set, and the subframe does not exist in the first subframe set. .
  • the user equipment in the received multiple EPDCCH set sets, the CRS and the PDCCH according to the at least one EPDCCH set set received according to the resource indication information of the EPDCCH, and the received There is no CRS and PDCCH in at least one EPDCCH set set.
  • Table 1 0th subframe set 1st subframe set
  • Table 1 Here, as shown in Table 1, the first row and the second column are the 0th subframe and the 5th subframe, and the first row and the third column are divided into the 0th subframe and the 5th by taking the length of one frame as an example. Other sub-frames, that is, the first to fourth sub-frames and the sixth to ninth sub-frames.
  • the first row of the second row is the OEPDCCH set set
  • the first row of the third row is the 1E EPDCCH set set
  • the 0th subframe set and the third column are described according to the second column of the first row and the third column of the first row 1 state of the subframe set, as shown in Table 1:
  • PDCCH and CRS exist in the 0th subframe and the 5th subframe in the OEPDCCH set set, and other subframes except the 0th subframe and the 5th subframe
  • PDCCH and CRS are also present in the PDCCH and the CRS in the 0th subframe and the 5th subframe in the 1st EPDCCH set, and no PDCCH exists in other subframes except the 0th subframe and the 5th subframe.
  • CRS CRS.
  • the base station determines whether there are other subframes other than the 0th subframe and the 5th subframe, and the PDCCH and the CRS exist, and the base station sets at least all the children in the OEPDCCH set set.
  • the PDCCH and the CRS are present in the frame, and the PDCCH and the CRS are not present in the other subframes except for the PDCCH and the CRS in the 0th subframe and the 5th subframe in the 1st EPDCCH set.
  • the OEPDCCH set set shown in Table 1 is used, and the OEPDCCH set is transmitted to transmit the PDCCH and the CRS in the user.
  • the PDCCH and the CRS are transmitted on the 0 to 9 subframes to avoid occupying 0 to 9 when performing resource mapping configuration on the EPDCCH. The resources occupied by the PDCCH and CRS on the subframe.
  • the base station determines that there is no PDCCH and CRS in other subframes except the 0th subframe and the 5th subframe, the 1st EPDCCH set set shown in Table 1 is used, and the 0th subframe in the 1st EPDCCH set set is used.
  • the PDCCH and the CRS are transmitted in the 5th subframe, and the PDCCH and the CRS are not in the other subframes.
  • the EPDCCH is received according to the case where the PDCCH and the CRS are not transmitted on the 0 to 9 subframes, thereby enabling the user equipment to be correct.
  • Receiving the EPDCCH avoids occupying resources occupied by the PDCCH and the CRS in the subframe.
  • the base station performs resource configuration on multiple EPDCCHs, and when it is determined that the physical downlink control channel PDCCH and the cell common reference signal CRS are included except for a specific subframe, at least one EPDCCH set is obtained.
  • the set includes the physical downlink control channel PDCCH and the cell common reference signal CRS, and the at least one subframe set does not include the physical downlink control channel PDCCH and the cell common reference signal CRS.
  • the second embodiment can be based on the embodiment shown in FIG. 1, FIG. 2 or FIG. 3, and the embodiment of the present invention provides a method for configuring signaling resources.
  • the specific steps are as follows:
  • the base station side checks the physical downlink control channel PDCCH (Physical Downlink Control Channel)
  • the first configuration information corresponding to the PDCCH and the second configuration information of the corresponding CRS are included in the cell-specific reference signal (CRS), and the method includes two methods, specifically, step 401 and step 402, step 403, and step 404.
  • PDCCH Physical Downlink Control Channel
  • CRS cell-specific reference signal
  • the resource indication information of the EPDCCH includes the first subframe set in which the PDCCH is located and the start symbol number of the OFDM symbol occupied by the PDCCH, so that the user equipment according to the resource indication information of the EPDCCH Receive EPDCCH correctly.
  • the resource indication information according to the EPDCCH is used to indicate that the user equipment is in the right
  • the EPDCCH performs the resource mapping the resources occupied by the PDCCH are avoided.
  • the PDCCH only occupies the first 1 ⁇ 3 0?0 ⁇ 1 symbols in the PRB pair.
  • the resource indication information of the EPDCCH generated according to the PDCCH may be, for example, the length of one frame, and the number of starting symbols of the PDCCH in the 0th subframe and the 5th subframe in the subframe set 1 is OFDM 1 ; In the frame set 2, other subframes other than the 0th subframe and the 5th subframe (such as the 1st subframe to the 4th subframe and the 6th subframe to the 9th subframe) indicate the number of starting symbols of the PDCCH OFDM2 .
  • the OFDM occupied by the PDCCH in the resource indication information of the EPDCCH is avoided.
  • the PDCCH is only in the first subframe set, where the resource indication information of the EPDCCH includes one or a combination of the subframe in which the PDCCH is located and the number of starting symbols of the occupied OFDM symbol, specifically taking the length of one frame as an example. It is assumed that the PDCCH is present in the 0th subframe and the 5th subframe, and the PDCCH is not included in the 0th subframe and the 5th subframe.
  • the resource indication information of the EPDCCH includes: a subframe in which the PDCCH is located (such as a PDCCH). One or a combination of the number of starting symbols occupied in the PRB pair of the PDCCH in the 0th subframe and the 5th subframe).
  • the resource indication information of the EPDCCH includes a port number of the CRS, a frequency domain offset position, and/or a first subframe set in which the CRS exists.
  • the resource indication information of the EPDCCH is used to indicate that the user equipment circumvents the resource occupied by the CRS when performing resource mapping on the EPDCCH, where the resource indication information of the EPDCCH generated according to the CRS may be, for example, the length of one frame, in the sub-
  • the frequency domain offset frequency shift 1 of the port number 1 and the CRS indicating the CRS in the 0th subframe and the 5th subframe in the frame set 1 is other than the 0th subframe and the 5th subframe in the subframe set 2
  • the port number 2 of the CRS and the frequency domain offset frequency shift2 of the CRS are indicated.
  • the resource occupied by the CRS in the resource indication information of the EPDCCH is occupied. It is assumed that the CRS exists only in the first subframe set, and the length of one frame is taken as an example. It is assumed that CRS exists in the 0th subframe and the 5th subframe, and the other 0 subframes and 5 subframes are excluded. If there is no CRS, the resource indication information of the EPDCCH includes: a subframe in which the CRS is located (eg, the CRS is located in the 0th subframe and the 5th subframe), the number of ports in the CRS in one subframe, and the CRS in one subframe.
  • the frequency domain offset frequency shift is at least one or a combination of at least two.
  • the base station sends the resource indication information of the EPDCCH to the user equipment, and the user equipment is instructed to determine, according to the resource indication information of the EPDCCH, the resource unit used in the transmission of the EPDCCH in each subframe signaling resource.
  • the base station sends the resource indication information of the EPDCCH to the user equipment, or sends the PDCCH and/or CRS in the resource indication information of the EPDCCH according to the specific requirements of the user equipment.
  • the user equipment receives resource indication information of a physical downlink control channel EPDCCH sent by the base station.
  • the user equipment receives the resource indication information of the EPDCCH sent by the base station, or receives the PDCCH and/or CRS in the resource indication information of the EPDCCH according to the specific requirements of the user equipment.
  • the user equipment receives the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH.
  • the user equipment configures the EDPCCH according to the configuration of the PDCCH and/or the CRS corresponding to the resource indication information of the EPDCCH, and avoids the misuse of the resources occupied by the PDCCH and/or the CRS when receiving the EPDCCH, so as to accurately receive the EPDCCH.
  • the user equipment configures the resource mapping for the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH, and the specific steps are as follows: a.
  • the EPDCCH is received according to the resource indication information of the EPDCCH.
  • the PDCCH is present in the 0th subframe and the 5th subframe, and the other subframes are not included in the 0th subframe and the 5th subframe, and the subframe is located according to the PDCCH (eg, the PDCCH is located in the 0th subframe and the PDCCH) 5 subframes), the number of starting symbols occupied by the PDCCH in the PRB pair in one subframe, and the resource mapping is configured for the EPDCCH. Since the number of starting symbols of the PDCCH is known to be OFDM, the same subframe is used according to the existing regulations. The OFDM occupied by the PDCCH is followed by the OFDM required for the EPDCCH configuration. b.
  • the EPDCCH is received according to the resource indication information of the EPDCCH.
  • the subframes occupied by the CRS in the resource indication information of the EPDCCH are the subframes in the first subframe set, and the number of ports and/or frequency domain offset positions occupied by the CRS.
  • the number of ports of the CRS in one subframe and the frequency shift of the CRS in one subframe, the frequency shift is configured for the EPDCCH, since the subframe in which the CRS is located and the CRS are in one subframe
  • the number of ports and the frequency shift of the CRS in one subframe are frequency shift.
  • the OFDM occupied by the PDCCH of the same subframe and the OFDM part occupied by the CRS are OFDM required to be occupied by the EPDCCH configuration.
  • the resource indication information of the first EPDCCH includes a subframe that is not occupied by the PDCCH in the first subframe set, and a starting symbol number of the OFDM symbol occupied by the PDCCH.
  • the base station determines that there is a CRS and a PDCCH in the 0th subframe and the 5th subframe, and whether the CRS and the PDCCH are not determined in the remaining subframes, the 0th subframe and the 5th subframe may be determined.
  • the resource indication information of the first EPDCCH is generated according to the configuration parameter of the PDCCH in the other sub-frame, so that the user equipment is further configured according to the resource indication of the first EPDCCH in addition to the resource indication information of the EPDCCH.
  • the information is learned that the PDCCH is also present in the other subframes, and the resource mapping configuration of the EPDCCH is performed according to the resource indication information of the first EPDCCH generated by the PDCCH. 407.
  • the base station sends the resource indication information of the first EPDCCH to the user equipment, so that the user equipment receives the EPDCCH according to the resource indication information of the first EPDCCH.
  • the resource indication information of the second EPDCCH includes a subframe that is not occupied by the CRS in the first subframe set, and a port number and/or a frequency domain offset position used by the CRS, so that the user The device correctly receives the EPDCCH according to the resource indication information of the EPDCCH.
  • the base station determines that the CRS and the PDCCH are also present in the other subframes other than the 0th subframe and the 5th subframe, the resource indication of the second EPDCCH is generated according to the configuration parameter of the CRS in the other subframes.
  • the information is obtained by the user equipment, in addition to the resource indication information of the EPDCCH, according to the resource indication information of the second EPDCCH, and the CRS is also present in the other subframes, and the resource mapping information of the EPDCCH is configured according to the resource indication information of the second EPDCCH generated by the CRS.
  • the base station sends the resource indication information of the second EPDCCH to the user equipment, so that the user equipment receives the EPDCCH according to the resource indication information of the second EPDCCH.
  • the EPDCCH is received according to the resource indication information of the first EPDCCH.
  • the resource indication information of the first EPDCCH includes a subframe occupied by the PDCCH, a subframe that is not in the first subframe set, and a start symbol number of the OFDM symbol occupied by the PDCCH.
  • the user equipment configures an EPDCCH in another subframe according to the resource indication information of the first EPDCCH.
  • the user equipment learns that the user equipment knows not only The PDCCH in the 0th subframe and the 5th subframe is also known to have a PDCCH in other subframes.
  • the user equipment allocates resources to the EPDCCH according to the configuration of the PDCCH in the resource indication information of the received first EPDCCH.
  • the non-first subframe set of the received resource indication information of the second EPDCCH includes the CRS
  • the resource indication information of the second EPDCCH includes a subframe occupied by the CRS, a subframe that is not in the first subframe set, and a port number and/or a frequency domain offset position occupied by the CRS.
  • the user equipment configures an EPDCCH in another subframe according to the resource indication information of the second EPDCCH.
  • the user equipment knows that the user equipment is not only at the 0th.
  • the CRS is present in the subframe and the fifth subframe, and the CRS is also found in the other subframes.
  • the user equipment allocates resources to the EPDCCH according to the configuration of the CRS in the resource indication information of the received second EPDCCH.
  • the user equipment After receiving the resource indication information of the second EPDCCH, the user equipment finds that the content of the EPDCCH is in conflict with the content of the EPDCCH, and the user equipment reconfigures the EPDCCH according to the resource indication information of the second EPDCCH.
  • the method for configuring the signaling resource provided by the embodiment of the present invention, the base station generates the resource indication information of the EPDCCH according to the CRS in the different subframes and the configuration parameter of the PDCCH, so that the user equipment determines the signaling resource according to the resource indication information of the EPDCCH.
  • the resource unit RE occupied by the EPDCCH is transmitted.
  • the PDCCH and the CRS are present in the 0th to 9th subframes, and the length of the frame is within the length of one frame.
  • the PDCCH and the CRS are not limited in the one subframe, and the PDCCH and the CRS are in the subframes, and the method for configuring the signaling resource is not limited. .
  • the embodiment of the present invention provides a base station 5, which is configured with any of the foregoing signaling resources that can be implemented by the embodiment of the present invention. Referring to FIG.
  • the base unit 5 includes: a configuration unit 51; Resource indication information for generating an enhanced enhanced physical downlink control channel EPDCCH; the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH
  • the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of the PDCCH in each subframe;
  • the CRS configuration parameter includes a subframe information in which the CRS is located, and Resource unit information occupied by CRS in each subframe;
  • the communication unit 52 is configured to send the resource indication information of the EPDCCH generated by the configuration unit to the user equipment, and instruct the user equipment to determine, according to the resource indication information of the EPDCCH, a resource unit used for transmitting the EPDCCH in each subframe signaling resource.
  • the base station provided by the embodiment of the present invention, the base station generates the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is configured according to the enhanced enhanced physical downlink control channel EPDCCH.
  • the resource indication information determines a resource unit RE used for transmitting the EPDCCH in the signaling resource.
  • the CRS configuration parameter includes: a subframe set and a port number of the CRS corresponding to the subframe set, and a frequency domain offset position;
  • the PDCCH configuration parameter includes: a subframe set, and the subframe is combined with the corresponding EPDCCH.
  • the configuration unit 51 is specifically configured to:
  • the resource indication information of the EPDCCH includes the first subframe set in which the PDCCH is located and the number of start symbols of the OFDM symbol occupied by the PDCCH, so that the user equipment correctly receives the resource indication information according to the EPDCCH.
  • the resource indication information of the EPDCCH includes the number of ports of the CRS, the frequency domain offset position, and/or the first subframe set in which the CRS exists; optionally, the configuration unit 51, specifically For: when the non-first subframe set includes the PDCCH, the resource indication information of the first EPDCCH includes a subframe that is not occupied by the PDCCH in the first subframe set, and a starting symbol number of the OFDM symbol occupied by the PDCCH; When the first subframe set includes the CRS, the resource indication information of the second EPDCCH includes a subframe that is not occupied by the CRS in the first subframe set, and a port number and/or a frequency domain offset position used by the CRS, so that the user equipment is configured according to the EPDCCH.
  • the resource indication information correctly receives the EPDCCH.
  • the configuration unit 51 is configured to: when the base station configures the resource mapping for the multiple EPDCCH set sets, if at least one subframe is determined to include the CRS and the PDCCH, the at least one subframe is set in the subframe information; Or, if it is determined that the CRS and the PDCCH are not included in the at least one subframe, all the subframes are not set in the subframe information; or
  • the base station If it is not determined in other subframes whether the CRS and the PDCCH are included, at least one other subframe is set in the subframe information, and at least one other subframe is not set in the subframe information.
  • the base station generates the resource indication information of the EPDCCH according to the CRS in the different subframes and the configuration parameters of the PDCCH, so that the user equipment determines, according to the resource indication information of the EPDCCH, the occupied by the EPDCCH in the signaling resource.
  • Resource unit RE RE.
  • the PDCCH and the CRS are still present with other subframes, and the first EPDCCH is generated.
  • Resource indication information and resource indication information of the second EPDCCH, and the resource indication information of the first EPDCCH and the resource indication information of the second EPDCCH The information is sent to the user equipment, so that the user equipment can update according to the actual situation, and the problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the information cannot be correctly transmitted.
  • the communication unit 61 includes: And the resource indication information for receiving the physical downlink control channel EPDCCH sent by the base station; the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate a location of a resource unit occupied by the EPDCCH, The CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid; the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of the PDCCH in each subframe; the CRS configuration parameter includes a subframe information in which the CRS is located, and each The resource unit information occupied by the CRS in the subframe; the configuration unit 62 is configured to receive the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH received by the communication unit
  • the base station generates resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is configured according to the enhanced enhanced physical downlink control channel.
  • the resource indication information of the EPDCCH determines the resource unit RE used for transmitting the EPDCCH in the signaling resource. The problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the EPDCCH is solved.
  • the configuration unit 62 is specifically configured to: when the PDCCH of the received EPDCCH, the PDCCH has only the first subframe set, receive the EPDCCH according to the resource indication information of the EPDCCH, where the PDCCH of the resource indication information of the EPDCCH The number of subframes in the first subframe set and the number of start symbols of the OFDM symbol occupied by the PDCCH.
  • the CRS of the received EPDCCH has only the first subframe set in the resource indication information
  • the resource indication information is received according to the EPDCCH.
  • the EPDCCH where the subframe in which the CRS is occupied in the resource indication information of the EPDCCH is a subframe in the first subframe set, and The number of ports occupied by the CRS and/or the frequency domain offset position.
  • the configuration unit 62 is configured to: when the first first subframe set includes the PDCCH in the resource indication information of the received first EPDCCH, according to the The resource indication information of the EPDCCH receives the EPDCCH, where the resource indication information of the first EPDCCH includes the number of subframes occupied by the PDCCH, and the number of start symbols of the OFDM symbol occupied by the PDCCH; and the resource indication information of the received second EPDCCH is not the first
  • the EPDCCH is received according to the resource indication information of the second EPDCCH, where the resource indication information of the second EPDCCH includes a subframe occupied by the CRS, a subframe that is not in the first subframe set, and a port occupied by the CRS.
  • the configuration unit 62 is further configured to: when the base station configures the resource mapping for the multiple EPDCCH set sets, if the CRS and the PDCCH are determined to be included in the at least one subframe, the user equipment receives each according to the resource indication information of the EPDCCH.
  • the CPDCCH and the PDCCH are respectively included in the EPDCCH set; or, if the CRS and the PDCCH are not included in the at least one subframe, the user equipment does not have the CRS and the PDCCH according to the EPDCCH set received by the resource indication information of the EPDCCH; or
  • the user equipment has, in the received multiple EPDCCH set sets, the CRS and the PDCCH according to the at least one EPDCCH set set received according to the resource indication information of the EPDCCH, and the received at least one There is no CRS and PDCCH in the EPDCCH set.
  • the base station generates the resource indication information of the EPDCCH according to the CRS and the configuration parameters of the PDCCH in the different subframes, so that the user equipment determines, according to the resource indication information of the EPDCCH, the used signal to be used for transmitting the EPDCCH.
  • Resource unit RE RE.
  • the PDCCH and the CRS, the PDCCH and the CRS are further configured to generate the resource indication information of the first EPDCCH and the resource indication information of the second EPDCCH, and the resource indication information of the first EPDCCH and the resource indication of the second EPDCCH
  • the information is sent to the user equipment, so that the user equipment can update according to the actual situation, which solves the problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the EPDCCH.
  • the base station 7 includes: at least one processor 71, a memory 72, a communication port 73, and a bus 74, the at least one processor 71, the memory 72, and a communication interface. 73 is connected via bus 74 and completes communication with each other.
  • the bus 74 can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Wait.
  • the bus 74 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.
  • the memory 72 is for storing executable program code, the program code including computer operating instructions.
  • Memory 72 may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk storage device.
  • the processor 71 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
  • the communication interface 73 is mainly used to implement communication between devices in this embodiment.
  • the processor 71 is configured to generate resource indication information of the enhanced enhanced physical downlink control channel EPDCCH.
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used to indicate that the EPDCCH is occupied.
  • the CRS configuration parameter is used to indicate the resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes the subframe information where the PDCCH is located and the starting position of the PDCCH in each subframe;
  • the CRS configuration parameter includes the CRS configuration parameter Subframe information and resource units occupied by CRS in each subframe Information
  • the processor 71 is further configured to send the resource indication information of the EPDCCH to the user equipment by using the at least one communication interface 73, and instruct the user equipment to determine, according to the resource indication information of the EPDCCH, the resource unit used for transmitting the EPDCCH in each subframe signaling resource.
  • the base station provided by the embodiment of the present invention, the base station generates the resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is configured according to the enhanced enhanced physical downlink control channel EPDCCH.
  • the resource indication information determines a resource unit RE used for transmitting the EPDCCH in the signaling resource.
  • the CRS configuration parameter includes: a subframe set and a port number of the CRS corresponding to the subframe set, and a frequency domain offset position;
  • the PDCCH configuration parameter includes: a subframe set, and the subframe is combined with the corresponding EPDCCH.
  • the processor 71 is specifically configured to: when the PDCCH is included only in the first subframe set, the resource indication information of the EPDCCH includes a first subframe set where the PDCCH is located, and a starting symbol number of the OFDM symbol occupied by the PDCCH For the user equipment to correctly receive the EPDCCH according to the resource indication information of the EPDCCH; when the CRS is included only in the first subframe set, the resource indication information of the EPDCCH includes the number of ports of the CRS, the frequency domain offset position, and/or the presence of the CRS.
  • the processor 71 is configured to: when the non-first subframe set includes the PDCCH, the resource indication information of the first EPDCCH includes the PDCCH occupied by the non-first subframe set a subframe, and a start symbol number of the OFDM symbol occupied by the PDCCH; when the non-first subframe set includes the CRS, the resource indication information of the second EPDCCH includes a subframe that is not occupied by the CRS in the first subframe set And the number of ports and/or frequency domain offset locations used by the CRS, so that the user equipment according to the resource indication of the EPDCCH The information correctly receives the EPDCCH.
  • the processor 71 is further configured to: when the base station configures resource mapping for multiple EPDCCH set sets, if at least one subframe is determined to include the CRS and the PDCCH, the at least one sub a frame is set in the subframe information; or
  • the base station If it is not determined in the other subframe whether the CRS and the PDCCH are included, at least one of the other subframes is set in the subframe information, and at least one of the other subframes is not set in the subframe. In the sub-frame information.
  • the base station According to the base station provided by the embodiment of the present invention, the base station generates the resource indication information of the EPDCCH according to the CRS in the different subframes and the configuration parameters of the PDCCH, so that the user equipment determines, according to the resource indication information of the EPDCCH, the occupied by the EPDCCH in the signaling resource.
  • Resource unit RE RE.
  • the PDCCH and the CRS are still present with other subframes, and the first EPDCCH is generated.
  • the resource indication information and the resource indication information of the second EPDCCH, and the resource indication information of the first EPDCCH and the resource indication information of the second EPDCCH are sent to the user equipment, so that the user equipment updates according to the actual situation, and the The problem of accurately mapping the EPDCCH to the resource and thus failing to transmit correctly.
  • An embodiment of the present invention provides a user equipment 8.
  • the user equipment 8 includes: at least one processor 81, a memory 82, a communication port 83, and a bus 84, the at least one processor 81, the memory 82, and Communication interfaces 83 are connected by bus 84 and complete communication with each other.
  • the bus 84 can be an Industry Standard Architecture (Industry Standard Architecture, Referred to as ISA) bus, Peripheral Component (PCI) bus or Extended Industry Standard Architecture (EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus 84 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.
  • the memory 82 is for storing executable program code, the program code comprising computer operating instructions.
  • the memory 82 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 81 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. integrated circuit.
  • the communication interface 83 is mainly used to implement communication between devices in this embodiment.
  • the processor 81 is configured to receive the resource indication information of the physical downlink control channel EPDCCH sent by the base station by using the at least one communication interface 83.
  • the resource indication information of the EPDCCH includes a PDCCH configuration parameter and/or a CRS configuration parameter, where the PDCCH configuration parameter is used.
  • the CRS configuration parameter is used to indicate a resource unit that the EPDCCH needs to avoid;
  • the PDCCH configuration parameter includes a subframe information in which the PDCCH is located, and a start position of the PDCCH in each subframe;
  • the CRS The configuration parameter includes the subframe information in which the CRS is located and the resource unit information occupied by the CRS in each subframe.
  • the processor 81 is configured to receive the enhanced physical downlink control channel EPDCCH according to the resource indication information of the EPDCCH.
  • the base station generates resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is configured according to the enhanced enhanced physical downlink control channel.
  • the resource indication information of the EPDCCH determines the resource unit RE used for transmitting the EPDCCH in the signaling resource. The problem that the EPDCCH cannot be accurately mapped due to the inability to accurately transmit the EPDCCH is solved.
  • the processor 81 is specifically configured to: when the resource indication information of the EPDCCH is received through the at least one communication interface 83 When there is only a first subframe set in the PDCCH, the EPDCCH is received by the at least one communication interface 83 according to the resource indication information of the EPDCCH, where the number of subframes in the first subframe set occupied by the PDCCH in the resource indication information of the EPDCCH, and the PDCCH The number of the start symbols of the occupied OFDM symbol; when the CRS is only present in the resource indication information of the EPDCCH received by the at least one communication interface 83, the EPDCCH is received according to the resource indication information of the EPDCCH, where the EPDCCH is The subframe occupied by the CRS in the resource indication information is a subframe in the first subframe set, and a port number and/or a frequency domain offset position occupied by the CRS;
  • the processor 81 is configured to: when the non-first subframe set includes the PDCCH in the resource indication information of the first EPDCCH received by the at least one communication interface, receive the EPDCCH according to the resource indication information of the first EPDCCH. And the resource indication information of the first EPDCCH includes a subframe occupied by the PDCCH being a subframe that is not in the first subframe set, and a starting symbol number of the OFDM symbol occupied by the PDCCH; and a second received by the at least one communication interface 83 When the non-first subframe set of the EPDCCH includes the CRS, the EPDCCH is received according to the resource indication information of the second EPDCCH, where the resource indication information of the second EPDCCH includes the subframe occupied by the CRS is not the first subframe set. Subframes, as well as the number of ports and/or frequency domain offsets occupied by the CRS. Further, the processor 81 is specifically configured to:
  • the base station configures the resource mapping for the multiple EPDCCH set sets, if the CRS and the PDCCH are determined to be included in the at least one subframe, the user equipment includes the CRS and the PDCCH according to the EPDCCH set received by the resource indication information of the EPDCCH; or
  • the user equipment does not have the CRS and the PDCCH according to the EPDCCH set received by the resource indication information of the EPDCCH; or,
  • the user equipment has, in the received multiple EPDCCH set sets, the CRS and the PDCCH according to the at least one EPDCCH set set received according to the resource indication information of the EPDCCH, and the received at least There is no CRS and PDCCH for one EPDCCH set.
  • the base station generates the resource indication information of the EPDCCH according to the CRS and the configuration parameters of the PDCCH in the different subframes, so that the user equipment determines, according to the resource indication information of the EPDCCH, the used signal to be used for transmitting the EPDCCH.
  • Resource unit RE RE.
  • the PDCCH and the CRS are still present with other subframes, and the first EPDCCH is generated.
  • the resource indication information and the resource indication information of the second EPDCCH, and the resource indication information of the first EPDCCH and the resource indication information of the second EPDCCH are sent to the user equipment, so that the user equipment updates according to the actual situation, and the The problem of accurately mapping the EPDCCH to the resource and thus failing to transmit correctly.
  • the embodiment of the present invention provides a communication system 9, which is shown in FIG. 9, and includes: a base station 91 and a user equipment 92, wherein the base station 91 is the base station shown in FIG. 5.
  • the user equipment 92 is as shown in FIG. User equipment; or, the base station 91 is the base station shown in FIG. 7; the user equipment 92 is the user equipment shown in FIG.
  • the base station generates resource indication information of the enhanced enhanced physical downlink control channel EPDCCH according to the CRS and the configuration parameters of the PDCCH in different subframes, so that the user equipment is configured according to the enhanced enhanced physical downlink control channel.
  • the resource indication information of the EPDCCH determines the resource unit RE used for transmitting the EPDCCH in the signaling resource. Solved because of the inaccuracy The EPDCCH performs resource mapping, so that the problem cannot be correctly transmitted.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • Any connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un système de configuration pour des ressources de signalisation, qui se rapportent au domaine technique des communications, et résolvent le problème d'incapacité à réaliser une transmission précise en raison du fait qu'un mappage de ressources ne peut pas être réalisé de manière précise sur un EPDCCH. Le procédé comprend les opérations suivantes : une station de base génère des informations d'indication de ressource concernant un canal de commande de liaison descendante physique amélioré (EPDCCH); envoie des informations d'indication de ressource concernant l'EPDCCH à un équipement utilisateur; et indique à l'équipement utilisateur de déterminer des éléments de ressource occupés pour transmettre l'EPDCCH dans différentes ressources de signalisation de sous-trame selon les informations d'indication de ressource concernant l'EPDCCH. Le mode de réalisation de la présente invention est utilisé pour améliorer la transmission d'une signalisation de commande.
PCT/CN2014/070418 2014-01-09 2014-01-09 Procédé, dispositif et système de configuration pour des ressources de signalisation WO2015103763A1 (fr)

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CN201480001643.6A CN105264988B (zh) 2014-01-09 2014-01-09 一种信令资源的配置方法、设备及系统

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