WO2015176660A1 - 测量参考信号传输的方法、用户设备及演进基站 - Google Patents
测量参考信号传输的方法、用户设备及演进基站 Download PDFInfo
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- WO2015176660A1 WO2015176660A1 PCT/CN2015/079388 CN2015079388W WO2015176660A1 WO 2015176660 A1 WO2015176660 A1 WO 2015176660A1 CN 2015079388 W CN2015079388 W CN 2015079388W WO 2015176660 A1 WO2015176660 A1 WO 2015176660A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a method for measuring reference signal (SRS) transmission, user equipment, and an evolved base station.
- SRS reference signal
- LTE Long Term Evolution
- UE User Equipment
- SRS Measurement Reference Signal
- eNB Evolved NodeB
- the wireless uplink signal of the LTE system is in units of subframes, and the duration of each subframe is 1 millisecond.
- each sub-frame is divided into 14 or 12 Orthogonal Frequency Division Multiplexing (OFDM symbol) symbols, and is also referred to as SC-FDMA (single carrier frequency division multiple access) symbol in the uplink. It can still be considered as a special OFDM symbol, which is still described in terms of OFDM symbols.
- OFDM symbol Orthogonal Frequency Division Multiplexing
- SC-FDMA single carrier frequency division multiple access
- the eNB first sets two parameters: 1) cell-specific SRS subframe configuration parameter; 2) cell-specific SRS bandwidth parameter.
- the eNB sends the above two parameters to the UE in the local cell by using downlink signaling.
- the eNB may also send a UE-specific SRS subframe configuration and a user SRS bandwidth configuration parameter (UE-specific) parameter, and the UE may determine according to the cell SRS subframe configuration parameter and the user SRS subframe configuration parameter. Which subframes in the uplink signal are used for SRS, that is, which subframes are SRS subframes.
- the last OFDM symbol of the SRS subframe which will be the group
- the N subcarriers of the OFDM symbol are divided into two combs, one comb corresponding to the odd number subcarriers (1, 3, 5, 7, 9...) and the other comb corresponding to the even subcarriers (0) , 2, 4, 6, 8...), both of which are used to transmit SRS transmissions.
- the cell SRS bandwidth configuration parameter determines that the number of subcarriers is less than or equal to the total number of subcarriers N of the system. As shown in FIG.
- a plurality of SRS subframes are configured in a certain period in an uplink signal, and each SRS subframe is composed of 14 OFDM symbols, and the last OFDM symbol is taken as an example, which is divided into N according to a cell SRS bandwidth configuration parameter.
- Subcarriers The last OFDM symbol of the SRS subframe is a time-frequency resource of the SRS, and the UE does not transmit data on the last OFDM symbol of the SRS subframe; the OFDM symbol except the last OFDM symbol in the SRS subframe can transmit the uplink physical layer shared channel.
- the time-frequency resource of the Physical Uplink Shared Channel (PUSCH) the UE uploads data in these OFDM symbols.
- all OFDM symbols are time-frequency resources that can transmit the PUSCH, and the UE transmits data through the other subframes.
- some low-power eNBs are introduced into the network for small-scale coverage, and the number of users served by each eNB decreases with the decrease of the range.
- the LTE system will appear.
- Unnecessary SRS time-frequency resources Since the SRS time-frequency resource only exists in the SRS subframe, the prior art reduces the SRS subframe size by reducing the density of the SRS subframe in the uplink signal, thereby reducing the SRS time-frequency resource. As shown in FIG. 2, one SRS subframe is configured in every two subframes, and the other one subframe is used as the time-frequency resource of the PUSCH.
- one SRS subframe is configured in every four subframes, and the other three subframes are all used as the PUSCH.
- Time-frequency resources If there are 8 subframes in one uplink signal period, then 4 SRS subframes are originally configured. After being optimized by the prior art, a total of two SRS subframes are configured to reduce the time-frequency resources occupied by the SRS.
- the inventor has found that at least the following problems exist in the prior art: although the prior art can reduce the time-frequency resources occupied by the SRS, the SRS subframe density will also decrease, so that the SRS transmission period is shortened. Increase the length and reduce the channel measurement efficiency.
- the method for the SRS transmission, the user equipment, and the evolved base station are provided to solve the problem that the time-frequency resource occupied by the SRS is reduced by reducing the number of SRS subframes, resulting in low channel measurement efficiency.
- the present invention provides a method for measuring a reference signal SRS transmission, which includes:
- an SRS subframe according to an SRS subframe configuration parameter and an SRS bandwidth configuration parameter, where the SRS subframe configuration Include a cell SRS subframe configuration and/or a user SRS subframe configuration;
- the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter;
- the SRS comb parameter Configuring, according to the SRS comb parameter, at least one combo of the orthogonal frequency division multiplexing OFDM symbols used for transmitting the SRS as an SRS comb, the SRS comb for transmitting the SRS, and configuring the remaining combs as the uplink physical a layer shared channel PUSCH comb, the PUSCH comb for transmitting PUSCH data, the SRS comb parameter for describing a comb for transmitting an SRS, the SRS comb parameter including a cell SRS comb parameter and/or User SRS comb parameters;
- the method before the configuring an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, the method further includes:
- the SRS subframe configuration parameter, the SRS bandwidth configuration parameter, and the SRS comb parameter sent by the receiving eNB including:
- the SRS subframe is configured according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, and includes:
- the SRS comb parameter at least one combo of the OFDM symbols used for transmitting the SRS is configured as an SRS comb, and the remaining combs are configured as PUSCH combs, and the PUSCH comb is used to transmit PUSCH data, including :
- the PUSCH comb is used to transmit PUSCH data, and the plurality of combs constitute an OFDM symbol for transmitting an SRS in the SRS subframe.
- the SRS on the SRS comb is sent to the evolved base station eNB, and/or the data OFDM symbol set and the PUSCH data on the remaining combs are sent.
- the method further includes:
- Transmit power of the PUSCH data is calculated according to the SRS comb parameter.
- the SRS on the SRS comb is sent to an evolved base station eNB, and/or the data OFDM symbol set and the PUSCH data on the remaining combs are sent.
- the method further includes:
- the PUSCH data is the uplink control information UCI, mapping the remaining combs and the data OFDM symbol set in the OFDM symbol used for transmitting the SRS;
- the mapped PUSCH data is transmitted to the eNB.
- the embodiment of the present invention further provides a method for SRS transmission, including:
- the orthogonal frequency division multiplexing OFDM symbol used for transmitting the SRS is composed of an SRS comb and a remaining comb
- the SRS Combs are used to transmit SRS
- the remaining combs are configured as uplink physical layer shared channel PUSCH combs
- the PUSCH combs are used to transmit PUSCH data
- the data OFDM symbol set being an OFDM in the SRS subframe except for transmitting SRS A collection of OFDM symbols other than symbols.
- the method before the receiving the SRS subframe sent by the user equipment UE, the method further includes:
- an SRS subframe configuration parameter an SRS bandwidth configuration parameter, and an SRS comb parameter
- the SRS comb parameter is used to describe a comb for transmitting an SRS
- the SRS subframe configuration includes a cell SRS subframe configuration and/or Or a user SRS subframe configuration
- the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter
- the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS comb parameter.
- a second possible implementation of the second aspect is also provided.
- Sending SRS subframe configuration parameters, SRS bandwidth configuration parameters, and SRS comb parameters to the UE including:
- the SRS subframe configuration parameters are in one-to-one correspondence with the SRS comb parameters.
- the SRS subframe for receiving the SRS sent by the user equipment UE includes:
- the mapped PUSCH data includes the remaining combs in the OFDM symbols used for transmitting the SRS and the PUSCH data sent in the data OFDM symbol set.
- the embodiment of the present invention further provides a user equipment UE, including:
- a subframe configuration unit configured to configure an SRS subframe according to the measurement reference signal SRS subframe configuration parameter and the SRS bandwidth configuration parameter, where the SRS subframe configuration includes a cell SRS subframe configuration and/or a user SRS subframe configuration;
- the SRS bandwidth configuration parameters include a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter;
- a comb configuration unit configured to configure at least one combo of the orthogonal frequency division multiplexing OFDM symbols used for transmitting the SRS in the SRS subframe configured by the subframe configuration unit into an SRS comb according to the SRS comb parameter
- the SRS comb is used to transmit the SRS, and the remaining combs are configured as an uplink physical layer shared channel PUSCH comb.
- the PUSCH comb is used to transmit PUSCH data
- the SRS comb parameter is used to describe a comb for transmitting the SRS. a tooth, the SRS comb parameter comprising a cell SRS comb parameter and/or a user SRS comb parameter;
- a sending unit configured to send the SRS on the SRS comb to an evolved base station eNB, and/or send a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is the SRS A set of OFDM symbols in a subframe other than the OFDM symbols used to transmit the SRS.
- the user equipment further includes:
- a receiving unit configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the evolved node eNB.
- a second possible implementation manner of the third aspect is further provided.
- the receiving unit is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the eNB, including:
- the receiving unit is configured to receive at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters, and the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence;
- the subframe configuration unit is configured to configure an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, including:
- the subframe configuration unit is configured to configure at least two SRS subframes according to at least two SRS subframe configuration parameters and SRS bandwidth configuration parameters;
- the comb configuration unit is configured to configure at least one comb tooth in the OFDM symbol for transmitting the SRS in the SRS subframe configured by the subframe configuration unit as an SRS comb according to the SRS comb parameter, where the SRS comb For transmitting the SRS, configuring the remaining combs as PUSCH combs, the PUSCH combs for transmitting PUSCH data, and the SRS comb parameters for describing the combs for transmitting the SRS, including:
- the comb configuration unit is configured to configure at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe corresponding thereto according to each SRS comb parameter as an SRS comb, and the SRS subframe
- the remaining combs are configured as PUSCH combs for transmitting PUSCH data, the plurality of combs constituting OFDM symbols for transmitting SRS in the SRS subframe.
- the user equipment further includes:
- a calculating unit configured to calculate a transmit power of the PUSCH data according to the SRS comb parameter received by the receiving unit.
- the user equipment further includes:
- a mapping unit configured to: when the PUSCH data is uplink control information UCI, used to transmit the SRS Mapping the remaining combs in the OFDM symbol and the set of data OFDM symbols;
- the sending unit is further configured to send the mapped PUSCH data to the eNB.
- the present invention further provides an evolved base station, including:
- a receiving unit configured to receive an SRS subframe for transmitting a measurement reference signal SRS sent by the user equipment UE, where the orthogonal frequency division multiplexing OFDM symbol used for transmitting the SRS in the SRS subframe is composed of an SRS comb and the remaining comb a composition, the SRS comb is used to send an SRS, and the remaining combs are configured as an uplink physical layer shared channel PUSCH comb, and the PUSCH comb is used to send PUSCH data;
- the receiving unit is further configured to receive the SRS on the SRS comb, and/or a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is the SRS subframe A set of OFDM symbols other than the OFDM symbols used to transmit the SRS.
- the evolved base station further includes:
- a sending unit configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for transmitting an SRS, where the SRS subframe configuration includes a cell SRS a subframe configuration and/or a user SRS subframe configuration; the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter; the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS Comb parameters.
- a sending unit configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for sending the SRS, including:
- the sending unit is configured to send at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters to the UE, where the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence.
- the receiving unit is configured to receive an SRS subframe sent by the user equipment UE, including:
- the receiving unit is configured to receive the mapped PUSCH data sent by the UE, where the mapped PUSCH data includes the remaining combs in the OFDM symbol used for transmitting the SRS and the data OFDM symbol set sent PUSCH data.
- the present invention further provides a user equipment UE, including:
- a modem configured to configure an SRS subframe according to the measurement reference signal SRS subframe configuration parameter and an SRS bandwidth configuration parameter, where the SRS subframe configuration includes a cell SRS subframe configuration and/or a user SRS subframe configuration; and the SRS bandwidth configuration
- the parameters include a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter;
- the SRS comb parameter Configuring, according to the SRS comb parameter, at least one combo of the orthogonal frequency division multiplexing OFDM symbols used for transmitting the SRS in the SRS subframe as an SRS comb, the SRS comb for transmitting the SRS, and the remaining combs Configured as an uplink physical layer shared channel PUSCH comb, the PUSCH comb is used to send PUSCH data, and the SRS comb parameter is used to describe a comb for transmitting an SRS, and the SRS comb parameter includes a cell SRS comb Parameter and / or user SRS comb parameters;
- a sending port configured to send the SRS on the SRS comb to an evolved base station eNB, and/or transmit a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is the SRS A set of OFDM symbols in a subframe other than the OFDM symbols used to transmit the SRS.
- the user equipment further includes:
- the receiving port is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the evolved node eNB.
- the receiving port is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the eNB, including:
- the receiving port is configured to receive at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters, and the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence;
- the modem is configured to configure an SRS subframe according to an SRS subframe configuration parameter and an SRS bandwidth configuration parameter, including:
- the modem is configured to configure at least two SRS subframes according to at least two SRS subframe configuration parameters and SRS bandwidth configuration parameters;
- the modem is configured to configure at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe as an SRS comb according to the SRS comb parameter, where the SRS comb is used to send the SRS, and the remaining combs are Match
- the PUSCH comb is used to transmit PUSCH data
- the SRS comb parameter is used to describe a comb for transmitting the SRS, including:
- the modem is configured to configure at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe corresponding thereto according to each SRS comb parameter as an SRS comb, and the rest in the SRS subframe
- the comb is configured as a PUSCH comb, and the PUSCH comb is used to transmit PUSCH data, and the plurality of combs constitute an OFDM symbol for transmitting the SRS in the SRS subframe.
- the user equipment further includes:
- a processor configured to calculate, according to the SRS comb parameter received by the receiving port, a transmit power of the PUSCH data.
- the processor is further configured to: when the PUSCH data is the uplink control information UCI, the remaining combs in the OFDM symbol used for transmitting the SRS Mapping with a set of data OFDM symbols;
- the sending port is further configured to send the PUSCH data mapped by the processor to the eNB.
- the present invention further provides an evolved base station eNB, including:
- a receiving port configured to receive an SRS subframe for transmitting a measurement reference signal SRS sent by the user equipment UE, where the orthogonal frequency division multiplexing OFDM symbol used for transmitting the SRS in the SRS subframe is composed of an SRS comb and the remaining comb a composition, the SRS comb is used to send an SRS, and the remaining combs are configured as an uplink physical layer shared channel PUSCH comb, and the PUSCH comb is used to send PUSCH data;
- the receiving port is further configured to receive the SRS on the SRS comb, and/or a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is the SRS subframe A set of OFDM symbols other than the OFDM symbols used to transmit the SRS.
- the evolved base station further includes:
- a sending port configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for transmitting an SRS, where the SRS subframe configuration includes a cell SRS a subframe configuration and/or a user SRS subframe configuration; the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter; the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS Comb parameters.
- the sending port is configured to send an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter to the UE, where the SRS comb parameter is used to describe a comb for sending the SRS, including:
- the sending port is configured to send at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters to the UE, where the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence.
- a third possible implementation manner of the sixth aspect is further provided.
- the receiving port is configured to receive an SRS subframe sent by the user equipment UE, including:
- the receiving port is configured to receive the mapped PUSCH data sent by the UE, where the mapped PUSCH data includes the remaining combs in the OFDM symbol used for transmitting the SRS and the PUSCH data sent in the data OFDM symbol set.
- the method for the SRS transmission, the user equipment, and the evolved base station provided by the present invention can configure at least one comb tooth of the OFDM symbol used for transmitting the SRS as an SRS comb according to the cell SRS comb parameter, and the SRS comb is used for Transmitting an SRS, configuring the remaining combs as PUSCH combs, the PUSCH combs for transmitting PUSCH data, the cell SRS comb parameters for describing combs for transmitting SRSs; and transmitting the SRSs to an evolved base station eNB The SRS on the comb, and/or the transmit data OFDM symbol set and the PUSCH data on the remaining combs.
- the cell SRS comb parameter is not set, and therefore, at least one of the OFDM symbols used for transmitting the SRS in the SRS subframe cannot be used to transmit the SRS for the SRS comb, and the SRS is used for transmitting the SRS. All combs in the OFDM symbol transmit SRS.
- the channel resources occupied by the SRS need to be reduced, the channel resources occupied by the SRS can be reduced by reducing the density of the SRS subframes. In this case, the SRS subframe period becomes longer, which leads to an inaccurate measurement of the uplink channel. Uplink channel measurement efficiency.
- the SRS is sent as an SRS comb in the OFDM symbol for transmitting the SRS, and the remaining combs are configured as PUSCH combs, and the PUSCH comb is used to transmit PUSCH data, thereby implementing In the transmission of SRS In the OFDM symbol, a part of the comb is used to transmit the SRS, and another part of the comb is used to transmit the PUSCH data, thereby maintaining the channel measurement efficiency without changing the SRS subframe period, and being able to transmit more PUSCH data and improve system throughput. .
- the eNB divides the cell SRS subframe into two categories, wherein the first type of cell SRS subframe uses two combs, and the other type of cell SRS subframe uses one comb. Compared with the first embodiment, the method has better flexibility in resource allocation.
- FIG. 1 is a schematic structural diagram of an SRS subframe in the prior art
- FIG. 2 is a schematic diagram of an uplink data structure used to reduce SRS overhead in the prior art
- FIG. 3 is a flowchart of a method for transmitting a first SRS according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of a configuration of an SRS comb in an embodiment of the present invention.
- FIG. 5 is a schematic diagram showing the configuration of another SRS comb in the embodiment of the present invention.
- FIG. 6 is a flowchart of a method for transmitting a second SRS according to an embodiment of the present invention
- FIG. 7 is a flowchart of a method for transmitting a third SRS according to an embodiment of the present invention.
- FIG. 8 is a flowchart of a method for transmitting a fourth SRS according to an embodiment of the present invention.
- FIG. 9 is a flowchart of a method for transmitting a fifth SRS according to an embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of a first user equipment according to an embodiment of the present invention.
- FIG. 11 is a schematic structural diagram of a second user equipment according to an embodiment of the present invention.
- FIG. 12 is a schematic structural diagram of a first evolved base station according to an embodiment of the present invention.
- FIG. 13 is a schematic structural diagram of a second evolved base station according to an embodiment of the present invention.
- FIG. 14 is a schematic structural diagram of a third user equipment according to an embodiment of the present invention.
- FIG. 15 is a schematic structural diagram of a fourth user equipment according to an embodiment of the present invention.
- FIG. 16 is a schematic structural diagram of a third evolved base station according to an embodiment of the present invention.
- FIG. 17 is a schematic structural diagram of a fourth evolved base station according to an embodiment of the present invention.
- An embodiment of the present invention provides a method for SRS transmission, where the method is applied to a UE. As shown in FIG. 3, the method includes:
- Step 301 Configure an SRS subframe according to an SRS subframe configuration parameter and an SRS bandwidth configuration parameter, where the SRS subframe configuration includes a cell SRS subframe configuration and/or a user SRS subframe configuration; the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and / or user SRS bandwidth configuration parameters.
- the cell SRS subframe configuration parameter is used to describe which subframes in the uplink signal are used to transmit the SRS.
- the cell SRS bandwidth configuration parameter is used to describe the number of subcarriers contained in each OFDM symbol in the SRS subframe. For example, according to the cell SRS subframe configuration parameter and the cell SRS bandwidth configuration parameter, one subframe is configured in each two subframes for transmitting the SRS, that is, one SRS subframe in each two subframes, and each OFDM in the SRS subframe. The number of subcarriers contained in the symbol is 6.
- the SRS subframe set described by the user SRS subframe configuration parameter is a subset of all cell SRS subframes, and the user SRS subframe configuration parameter is used to describe which SRS subframes the user can use in the uplink signal.
- Step 302 Configure at least one comb tooth of the OFDM symbol used for transmitting the SRS as an SRS comb according to the SRS comb parameter, the SRS comb is used to send the SRS, and the remaining combs are configured as a PUSCH comb, and the PUSCH comb
- the SRS comb parameter is used to describe the comb for transmitting the SRS, and the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS comb parameter.
- the last OFDM symbol in the SRS subframe is used to transmit the SRS.
- the SRS comb parameter is an integer value, which is the SRS comb mark.
- One or more comb teeth are selected from the existing comb teeth according to the SRS comb parameters, the selected comb teeth are configured as SRS comb teeth, and the remaining comb teeth are configured as PUSCH comb teeth.
- the rest of the SRS subframe The OFDM symbols are each used to transmit PUCSH data, and the remaining OFDM symbols are OFDM symbols other than the OFDM symbols used to transmit the SRS.
- the total number of combs in the OFDM symbol is equal to the total number of subcarriers included in the spacing of every two subcarriers in the comb.
- SRS comb there may be only one SRS comb, for example, as shown in FIG. 4, there are 6 subcarriers in the OFDM symbol for transmitting the SRS, which are divided into two comb teeth, and the comb teeth of the two comb teeth are 0 and 1, respectively.
- the SRS comb parameter is 0, the comb teeth whose comb teeth are identified as 0 are configured as SRS comb teeth, and the comb teeth (the remaining comb teeth) whose comb teeth are identified as 1 are configured as PUSCH comb teeth.
- the comb tooth 0 is composed of subcarrier 0, subcarrier 2, and subcarrier 4.
- the comb 1 is composed of subcarrier 1, subcarrier 3, and subcarrier 5.
- the comb tooth 0 is composed of subcarrier 0 and subcarrier 5
- comb 1 is composed of subcarrier 1 and subcarrier 6
- comb 2 is composed of subcarrier 2 and subcarrier 7
- comb 3 is composed of subcarrier 3 and subcarrier 8.
- the comb 4 is composed of a subcarrier 4 and a subcarrier 9.
- Step 303 Send an SRS on the SRS comb to the evolved base station eNB, and/or transmit a data OFDM symbol set and PUSCH data on the remaining combs.
- the data OFDM symbol set is an OFDM symbol in the SRS subframe except for the SRS for transmitting the SRS. A collection of OFDM symbols.
- the SRS may be transmitted in each subcarrier of the SRS comb of the OFDM symbol used for transmitting the SRS, and the remaining OFDM symbols and the OFDM symbol used for transmitting the SRS according to service requirements
- the OFDM symbol data is transmitted in each subcarrier of the PUSCH comb.
- the loaded SRS data and OFDM symbol data are transmitted to the eNB.
- the transmit power is determined according to the distance between the UE and the eNB, and if the SRS and the PUSCH data cannot be sent, the SRS or the PUSCH data is sent.
- the SRS and the PUSCH may be transmitted in the following three ways: 1.
- the SRS is transmitted in all subcarriers of the OFDM symbol for transmitting the SRS of the SRS subframe. 2.
- SRS is transmitted on the SRS comb of the OFDM symbol for transmitting the SRS of the SRS subframe, and the OFDM symbol for transmitting the SRS in the SRS subframe
- the PUSCH is transmitted on the non-SRS comb of the number.
- the method for SRS transmission can configure at least one comb tooth in an OFDM symbol for transmitting an SRS as an SRS comb according to an SRS comb parameter, and the SRS comb is used to send an SRS, and the rest is used.
- Combs are configured as PUSCH combs, the PUSCH combs are used to transmit PUSCH data, the SRS comb parameters are used to describe combs for transmitting SRSs; and the SRS combs are sent to the evolved base station eNB SRS, and/or transmit data OFDM symbol sets and PUSCH data on the remaining combs.
- the SRS comb parameter is not set, so that at least one of the OFDM symbols used for transmitting the SRS in the SRS subframe cannot be used to transmit the SRS as the SRS comb.
- the OFDM for transmitting the SRS needs to be used. All the combs in the symbol send the SRS.
- the channel resources occupied by the SRS need to be reduced, the channel resources occupied by the SRS can be reduced by reducing the density of the SRS subframes. In this case, the SRS subframe period becomes longer, which leads to an inaccurate measurement of the uplink channel. Uplink channel measurement efficiency.
- the SRS is sent as an SRS comb in the OFDM symbol for transmitting the SRS, and the remaining combs are configured as PUSCH combs, and the PUSCH comb is used to transmit PUSCH data, thereby implementing In the OFDM symbol used for transmitting the SRS, a part of the comb is used to transmit the SRS, and another part of the comb is used to transmit the PUSCH data, so that the channel measurement efficiency can be maintained without changing the SRS subframe period, and more PUSCH can be transmitted. Data to increase system throughput.
- the embodiment of the present invention further provides a method for SRS transmission.
- a method for SRS transmission As a further description of the method shown in FIG. 3, as shown in FIG. 6, in step 301, an SRS sub-determination parameter is determined according to an SRS subframe configuration parameter and an SRS bandwidth configuration parameter.
- the method further includes:
- Step 601 Receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the eNB.
- the SRS transmission method provided by the embodiment of the present invention can receive the SRS subframe configuration parameter, the SRS bandwidth configuration parameter, and the SRS comb parameter sent by the eNB, so that the UE can load the SRS according to the current SRS comb parameter of the eNB, and improve the SRS transmission. real-time.
- the embodiment of the present invention further provides a method for SRS transmission.
- the eNB may send multiple SRS subframe configurations to the UE, and each SRS subframe. Configure the corresponding comb parameters, the specific implementation is as follows:
- Step 601 Receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the eNB. Number, including:
- Step 701 Receive at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters sent by the eNB, where the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence.
- the SRS subframe configuration parameter is also used to describe the total amount of combs of the OFDM symbols used to transmit the SRS in the SRS subframe.
- the at least two SRS subframe configuration parameters are capable of describing the total amount of combs of the plurality of OFDM symbols.
- the eNB divides the cell SRS subframe into two types, and the distribution of the SRS subframe is as shown in Table 1, wherein the first type of SRS subframe is defined by the configuration 1 and the two combs in the OFDM for transmitting the SRS are used, and the configuration 2 is adopted. Defining a second type of SRS subframe uses one comb in OFDM for transmitting SRS, and the data subframe is used to transmit PUSCH data.
- the SRS subframe configuration parameter describes the total number of combs of the OFDM symbols used for transmitting the SRS in the three SRS subframes, which are respectively 2 (configuration 1), 2 (configuration 2), and 3 (configuration 3).
- the three SRS comb parameters corresponding to the three SRS subframe configuration parameters are "0" (corresponding to configuration one), "0, 1" (corresponding to configuration 2), and "0, 1" (corresponding to configuration 3)
- the number of total subcarriers defined by the SRS bandwidth configuration parameter is 12.
- Subcarriers 0, 2, 4, 6, 8, 10 defining an OFDM symbol for transmitting SRS constitute comb 0, and subcarriers 1, 3, 5, 7, 9, 11 constitute comb 1 at 0
- the SRS is transmitted in the comb 0 composed of 2, 4, 6, 8, and 10 subcarriers.
- Subcarriers 0, 2, 4, 6, 8, 10 defining OFDM symbols for transmitting SRS constitute combs 0, and subcarriers 1, 3, 5, 7, 9, 11 constitute comb 1
- Comb 0 consisting of carriers 0, 2, 4, 6, 8, 10
- the SRS is transmitted in the comb 1 composed of the subcarriers 1, 3, 5, 7, 9, and 11.
- Subcarriers 0, 3, 6, and 9 defining OFDM symbols for transmitting SRS constitute combs 0, subcarriers 1, 4, 7, and 10 constitute combs 1, and subcarriers 2, 5, 8, and 11 constitute The comb 2 transmits the SRS in the comb tooth 0 composed of the sub-carriers 0, 3, 6, and 9 and the comb teeth 1 composed of the sub-carriers 1, 4, 7, and 10.
- a combo 0 in the comb tooth 0 and the comb tooth 1 is used to transmit the SRS, and 1/2 subcarrier is used, and the configuration 2 uses the comb tooth 0 and the comb tooth 1 as the entire comb tooth.
- the SRS is transmitted, and the configuration three uses two combs of three combs to transmit the SRS, that is, 2/3 subcarriers are used.
- the SRS is transmitted in the prior art using all subcarriers in an OFDM symbol for transmitting SRS.
- Step 101 Configure an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, including:
- Step 702 Configure at least two SRS subframes according to at least two SRS subframe configuration parameters and SRS bandwidth configuration parameters.
- Step 102 Configure, according to the SRS comb parameter, at least one combo of the OFDM symbol used for transmitting the SRS as an SRS comb, and configure the remaining combs as a PUSCH comb, and the PUSCH comb is used to send the PUSCH data, including:
- Step 703 Configure, according to each SRS comb parameter, at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe corresponding thereto as an SRS comb, and configure the remaining combs in the SRS subframe as the PUSCH.
- the PUSCH comb is used to transmit PUSCH data, and the plurality of combs constitute an OFDM symbol for transmitting the SRS in the SRS subframe.
- the method for SRS transmission provided by the embodiment of the present invention is capable of determining a configuration manner of multiple SRS combs in an OFDM symbol used for transmitting an SRS according to multiple SRS subframe configuration parameters and combo parameters corresponding to the eNB. This makes SRS transmission more flexible.
- the embodiment of the present invention further provides a method for SRS transmission.
- the SRS on the SRS comb is sent to an eNB, and/or a data OFDM symbol is sent.
- the method and the PUSCH data on the remaining combs, where the data OFDM symbol set is a set of OFDM symbols in the SRS subframe other than the OFDM symbol used for transmitting the SRS the method further includes:
- Transmit power of the PUSCH data is calculated according to the SRS comb parameter.
- the PUSCH data is transmitted in addition to the SRS transmitted in the OFDM symbol for transmitting the SRS, it is necessary to determine the transmission power according to the subcarrier spacing of the remaining combs when calculating the occurrence rate.
- the transmit power can be calculated by the following formula:
- P T is the transmit power
- P max is the maximum transmit power of the UE (the transmit power does not exceed P max anyway)
- P 0 is the target power value, that is, the power value that the eNB wishes to receive the signal, the value is determined by The eNB informs the UE
- the PL DL is the downlink path loss, which can be measured by the UE, and assumes that the downlink path loss is the same as the uplink path loss
- ⁇ is the closed loop power control command.
- M is the bandwidth configuration parameter of the PUSCH
- L is the interval of each subcarrier in the remaining combs.
- the spacing of each subcarrier in the remaining comb teeth is 3, and when calculated by the above formula, L is set to 3.
- the method for SRS transmission provided by the embodiment of the present invention can determine the transmit power according to the proportion of the remaining comb teeth in the OFDM symbol used for transmitting the SRS, and achieve the effect of accurate transmit power calculation.
- the embodiment of the present invention further provides a method for SRS transmission.
- the SRS on the SRS comb is sent to an eNB, and And/or transmitting a data OFDM symbol set and PUSCH data on the remaining combs, the data OFDM symbol set being a set of OFDM symbols in the SRS subframe except for an OFDM symbol used to transmit the SRS, the method Also includes:
- Step 801 When the PUSCH data is the uplink control information UCI, map the remaining combs and the data OFDM symbol set in the OFDM symbol used for transmitting the SRS.
- Step 802 Send the mapped PUSCH data to the eNB.
- the UE uses the UCI as the PUSCH data.
- the SRS comb and the remaining comb are configured, so in addition to mapping the data OFDM symbol set of the SRS subframe, the remaining combs are also The PUSCH data in each subcarrier is mapped.
- the SRS transmission method provided by the embodiment of the present invention can map the PUSCH data (UCI) transmitted in the remaining combs obtained according to the SRS comb parameters, and improve the UCI data amount sent in the SRS subframe, thereby improving data transmission efficiency. .
- the embodiment of the present invention further provides a method for SRS transmission, where the method is applied to an eNB. As shown in FIG. 9, the method includes:
- Step 901 Receive an SRS subframe for transmitting an SRS sent by the user equipment UE.
- the OFDM symbol used for transmitting the SRS in the SRS subframe is composed of an SRS comb and the remaining comb.
- the SRS comb is used to send the SRS, and the remaining comb is used.
- the teeth are configured as PUSCH combs, and the PUSCH combs are used to transmit PUSCH data.
- Step 902 Receive an SRS on an SRS comb, and/or a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is a set of OFDM symbols in the SRS subframe except for the OFDM symbol used to transmit the SRS. .
- the SRS transmission method provided by the embodiment of the present invention is capable of receiving an SRS subframe sent by the user equipment UE, where the OFDM symbol used for transmitting the SRS in the SRS subframe is composed of an SRS comb and the remaining comb teeth, and the SRS comb It is used to transmit an SRS, and the remaining combs are configured as PUSCH combs, and the PUSCH combs are used to transmit PUSCH data. Since the SRS is transmitted by only allocating the SRS combs in the OFDM symbols for transmitting the SRS in the SRS subframe, the system overhead of the SRS is reduced, and the SRS subframe period is guaranteed. At the same time, since the PUSCH data is transmitted in the remaining combs, the transmission rate of the uplink data will increase.
- the embodiment of the present invention further provides a method for SRS transmission.
- the method before receiving the SRS subframe sent by the user equipment UE, the method further includes:
- an SRS subframe configuration parameter an SRS bandwidth configuration parameter, and an SRS comb parameter
- the SRS comb parameter is used to describe a comb for transmitting an SRS
- the SRS subframe configuration includes a cell SRS subframe configuration and/or Or a user SRS subframe configuration
- the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter
- the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS comb parameter.
- the SRS subframe configuration parameter, the SRS bandwidth configuration parameter, and the SRS comb parameter are determined.
- the SRS subframe configuration parameter and the SRS bandwidth configuration parameter are the same as the prior art.
- the SRS subframe configuration parameter is used to describe which subframes are SRS subframes
- the SRS bandwidth configuration parameter is used to describe each OFDM symbol in the SRS subframe.
- the SRS comb parameters are used to describe which combs are used to transmit the SRS in the OFDM symbols used to transmit the SRS.
- the SRS transmission method provided by the embodiment of the present invention can send an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter to the UE according to the usage of the channel, and the SRS comb parameter is used to describe It is used to transmit the comb of the SRS, thereby improving the real-time performance of the SRS transmission.
- the embodiment of the present invention further provides a method for SRS transmission.
- step 901 sending an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter to a UE may be performed.
- the SRS subframe configuration parameters are in one-to-one correspondence with the SRS comb parameters.
- the method for SRS transmission provided by the embodiment of the present invention can send multiple SRS subframe configuration parameters and corresponding comb parameters to the UE, so that the UE determines the configuration of multiple SRS combs in the OFDM symbol used for transmitting the SRS.
- Step 901 Receive an SRS subframe for sending an SRS sent by a user equipment UE, where:
- the mapped PUSCH data includes the remaining combs in the OFDM symbols used for transmitting the SRS and the PUSCH data sent in the data OFDM symbol set.
- the method for SRS transmission provided by the embodiment of the present invention can read the UCI data in the remaining combs, improve the UCI data volume sent in the SRS subframe, and improve the data transmission efficiency.
- the embodiment of the present invention further provides a user equipment UE, which is applied to the UE, and is used to implement the method shown in FIG. 3 to FIG. 8.
- the user equipment includes:
- the subframe configuration unit 1001 is configured to configure an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, where the SRS subframe configuration includes a cell SRS subframe configuration and/or a user SRS subframe configuration; the SRS bandwidth
- the configuration parameters include a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter.
- the comb configuration unit 1002 is configured to configure, according to the SRS comb parameter, at least one comb tooth in the OFDM symbol used for transmitting the SRS in the SRS subframe configured by the subframe configuration unit 1001 as an SRS comb, the SRS comb For transmitting an SRS, configuring the remaining combs as PUSCH combs, the PUSCH combs for transmitting PUSCH data, the SRS comb parameters for describing combs for transmitting SRS, the SRS comb parameters including Cell SRS comb parameters and/or user SRS comb parameters.
- the sending unit 1003 is configured to send, to the evolved base station eNB, the SRS on the SRS comb, and/or send a data OFDM symbol set and PUSCH data on the remaining combs, the data OFDM symbol set A set of OFDM symbols other than the OFDM symbols used to transmit the SRS in the SRS subframe.
- the user equipment further includes:
- the receiving unit 1101 is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the evolved node eNB.
- the receiving unit 1101 is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the eNB, including:
- the receiving unit 1101 is configured to receive at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters sent by the eNB, where the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence;
- the subframe configuration unit 1001 is configured to configure an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, including:
- the subframe configuration unit 1001 is configured to configure at least two SRS subframes according to at least two SRS subframe configuration parameters and SRS bandwidth configuration parameters;
- the comb configuration unit 1002 is configured to configure at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe configured by the subframe configuration unit 1001 as an SRS comb according to the SRS comb parameter, the SRS Combs are used to transmit SRSs, and the remaining combs are configured as PUSCH combs, the PUSCH combs are used to transmit PUSCH data, and the SRS comb parameters are used to describe combs for transmitting SRS, including:
- the comb configuration unit 1002 is configured to configure at least one combo of the OFDM symbols for transmitting the SRS in the SRS subframe corresponding thereto according to each SRS comb parameter as an SRS comb, and the SRS sub
- the remaining combs in the frame are configured as PUSCH combs for transmitting PUSCH data, the plurality of combs constituting OFDM symbols for transmitting SRS in the SRS subframe.
- the user equipment further includes:
- the calculating unit 1102 is configured to calculate a transmit power of the PUSCH data according to the SRS comb parameter received by the receiving unit 1101.
- the user equipment further includes:
- the mapping unit 1103 is configured to: when the PUSCH data is the uplink control information UCI, map the remaining combs and the data OFDM symbol set in the OFDM symbol used for transmitting the SRS;
- the sending unit 1003 is further configured to send the PUSCH data mapped by the mapping unit 1103 to the eNB.
- the embodiment of the present invention further provides an evolved base station, where the method shown in FIG. 9 is implemented.
- the evolved base station includes:
- the receiving unit 1201 is configured to receive an SRS subframe for transmitting an SRS sent by the user equipment UE, where the OFDM symbol used for transmitting the SRS in the SRS subframe is composed of an SRS comb and a remaining comb, and the SRS comb is used by The SSCH is sent, and the remaining combs are configured as PUSCH combs, and the PUSCH combs are used to send PUSCH data;
- the receiving unit 1201 is further configured to receive the SRS on the SRS comb, and/or a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is the SRS sub A set of OFDM symbols in a frame other than the OFDM symbols used to transmit the SRS.
- the evolved base station further includes:
- the sending unit 1301 is configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for transmitting an SRS, where the SRS subframe configuration includes a cell SRS subframe configuration and/or user SRS subframe configuration; the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter; the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS comb parameters.
- the sending unit 1301 is configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for sending the SRS, including:
- the sending unit 1301 is configured to send, to the UE, at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters, and the SRS subframe configuration parameters are in one-to-one correspondence with the SRS comb parameters.
- the receiving unit 1201 is configured to receive an SRS subframe sent by the user equipment UE, including:
- the receiving unit 1201 is configured to receive the mapped PUSCH data sent by the UE, where the mapped PUSCH data includes the remaining combs in the OFDM symbols used for transmitting the SRS and the PUSCH data sent in the data OFDM symbol set.
- the embodiment of the present invention further provides a user equipment UE, which is applied to the UE, and is used to implement the method shown in FIG. 3 to FIG. 8.
- the user equipment includes:
- the modem 1401 is configured to configure an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, where the SRS subframe configuration includes a cell SRS subframe configuration and/or a user SRS subframe configuration; and the SRS bandwidth configuration parameter includes Cell SRS bandwidth configuration parameters and/or user SRS bandwidth configuration parameters;
- the PUSCH comb is configured to send PUSCH data, where the SRS comb parameter is used to describe a comb for transmitting an SRS, where the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS comb parameter;
- a sending port 1402 configured to send the SRS on the SRS comb to an evolved base station eNB, and/or send a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is A set of OFDM symbols other than OFDM symbols used to transmit SRS in an SRS subframe.
- the user equipment further includes:
- the receiving port 1501 is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the evolved node eNB.
- the receiving port 1501 is configured to receive an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter sent by the eNB, including:
- the receiving port 1501 is configured to receive at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters sent by the eNB, where the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence;
- the modem 1401 is configured to configure an SRS subframe according to the SRS subframe configuration parameter and the SRS bandwidth configuration parameter, including:
- the modem 1401 is configured to configure at least two SRS subframes according to at least two SRS subframe configuration parameters and SRS bandwidth configuration parameters;
- the modem 1401 is configured to configure at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe as an SRS comb according to the SRS comb parameter, where the SRS comb is used to send the SRS, and the remaining comb
- the teeth are configured as PUSCH combs, and the PUSCH combs are used to transmit PUSCH data, and the SRS comb parameters are used to describe combs for transmitting SRS, including:
- the modem 1401 is configured to configure at least one combo of the OFDM symbols used for transmitting the SRS in the SRS subframe corresponding thereto according to each SRS comb parameter as an SRS comb, in the SRS subframe
- the remaining combs are configured as PUSCH combs, and the PUSCH combs are used to transmit PUSCH data, and the plurality of combs constitute an OFDM symbol for transmitting the SRS in the SRS subframe.
- the user equipment further includes:
- the processor 1502 is configured to calculate a transmit power of the PUSCH data according to the SRS comb parameter received by the receiving port 1501.
- the processor 1502 is further configured to: when the PUSCH data is the uplink control information UCI, map the remaining comb and the data OFDM symbol set in the OFDM symbol used for transmitting the SRS;
- the sending port 1402 is further configured to send the PUSCH data mapped by the processor 1502 to the eNB.
- the embodiment of the present invention further provides an evolved base station eNB, which is applied to an eNB, and is used to implement the method shown in FIG. 9.
- the evolved base station includes:
- a receiving port 1601 configured to receive an SRS subframe for transmitting an SRS sent by the user equipment UE, where an OFDM symbol used for transmitting the SRS is composed of an SRS comb and a remaining comb, and the SRS comb is used by The SSCH is sent, and the remaining combs are configured as PUSCH combs, and the PUSCH combs are used to send PUSCH data;
- the receiving port 1601 is further configured to receive the SRS on the SRS comb, and/or a data OFDM symbol set and PUSCH data on the remaining combs, where the data OFDM symbol set is the SRS sub A set of OFDM symbols in a frame other than the OFDM symbols used to transmit the SRS.
- the evolved base station further includes:
- a sending port 1701 configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for transmitting an SRS, where the SRS subframe configuration includes a cell SRS subframe configuration and/or user SRS subframe configuration; the SRS bandwidth configuration parameter includes a cell SRS bandwidth configuration parameter and/or a user SRS bandwidth configuration parameter; the SRS comb parameter includes a cell SRS comb parameter and/or a user SRS comb parameters.
- the sending port 1701 is configured to send, to the UE, an SRS subframe configuration parameter, an SRS bandwidth configuration parameter, and an SRS comb parameter, where the SRS comb parameter is used to describe a comb for sending the SRS, including:
- the sending port 1701 is configured to send at least two SRS subframe configuration parameters, an SRS bandwidth configuration parameter, and at least two SRS comb parameters to the UE, where the SRS subframe configuration parameter and the SRS comb parameter are in one-to-one correspondence.
- the receiving port 1601 is configured to receive an SRS subframe sent by the user equipment UE, including:
- the receiving port 1601 is configured to receive the mapped PUSCH data sent by the UE, where the mapped PUSCH data includes the remaining combs in the OFDM symbol used for transmitting the SRS and the PUSCH data sent in the data OFDM symbol set.
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Abstract
本发明公开了一种SRS传输的方法、用户设备及演进基站,涉及无线通信技术领域,用于解决在确定使用缓冲区域频谱时,UE进行异系统测试耗电量高以及发送测试报告消耗空口资源的问题,方法包括:根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧;根据SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿;向演进基站eNB发送SRS梳齿上的SRS,和/或发送数据OFDM符号集合以及其余梳齿上的PUSCH数据,数据OFDM符号集合为SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。本发明主要应用于数据传输的过程中。
Description
本申请要求于2014年5月22日提交中国专利局、申请号为CN 201410219314.0、发明名称为“测量参考信号传输的方法、用户设备及演进基站”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及无线通信技术领域,尤其涉及一种测量参考信号(SRS)传输的方法、用户设备及演进基站
随着通信技术的不断发展,长期演进(Long Term Evolution,简称LTE)系统得到广泛应用。LTE系统中由用户设备(User Equipment,简称UE)向演进节点(Evolved NodeB,简称eNB)发送测量参考信号(Sounding Reference Signal,简称SRS),以进行无线上行信道的测量。
LTE系统的无线上行信号以子帧为单位,每个子帧的时长为1毫秒。根据系统的不同,每个子帧分成14个或12个正交频分复用(Orthogonal Frequency Division Multiplexing,简称OFDM符号)符号,在上行中也称为SC-FDMA(single carrier frequency division multiple access)符号,可以仍然认为是一种特殊的OFDM符号,本文仍然按照OFDM符号来进行描述。其中给出由14个OFDM符号组成的子帧的结构示意图,每个OFDM符号在频域上包括N个子载波,N的大小有LTE系统带宽配置参数决定。eNB在上行的时频资源中,预留部分时频资源用于UE向eNB发送SRS,具体的预留方式如下:
eNB首先设定两个参数:1)小区SRS子帧配置(cell-specific SRS subframe configuration)参数;2)小区SRS带宽配置参数(cell-specific SRS bandwidth)参数。eNB通过下行信令将上述两个参数发送给本小区内的UE。此外,eNB还会下发用户子帧配置(UE-specific SRS subframe configuration)和用户SRS带宽配置参数(UE-specific)参数,UE根据小区SRS子帧配置参数和或用户SRS子帧配置参数能够确定上行信号中哪些子帧用于SRS,即哪些子帧为SRS子帧。SRS子帧的最后一个OFDM符号,将组
成该OFDM符号的N个子载波分为两个梳齿(comb),一个梳齿对应奇数号子载波(1,3,5,7,9…),另一个梳齿对应偶数号子载波(0,2,4,6,8…),这两个梳齿均用来发送SRS传输。小区SRS带宽配置参数决定子载波的个数小于或等于系统的总子载波数目N。如图1所示,上行信号中按照一定周期配置有多个SRS子帧,每个SRS子帧由14个OFDM符号组成,以最后一个OFDM符号为例,其根据小区SRS带宽配置参数分为N个子载波。SRS子帧的最后一个OFDM符号为SRS的时频资源,UE不在SRS子帧的最后一个OFDM符号上传输数据;SRS子帧中除了最后一个OFDM符号以外的OFDM符号均可以发送上行物理层共享信道(Physical Uplink Shared Channel,简称PUSCH)的时频资源,UE在这些OFDM符号中上传数据。除SRS子帧以外的其他子帧中,所有OFDM符号均为可以发送PUSCH的时频资源,UE通过上述其他子帧传输数据。
随着无线通信技术的发展,一些低功率的eNB被引入到网络中,用于做小范围的覆盖,每个eNB所服务的用户的数量随范围的减小而降低,此时LTE系统将出现不必要的SRS时频资源。由于SRS时频资源仅存在于SRS子帧中,因此现有技术通过降低上行信号中SRS子帧的密度,减少SRS子帧的数量,进而降低SRS时频资源。如图2所示,原先每两个子帧中配置一个SRS子帧,另外一个子帧全部作为PUSCH的时频资源,现在通过每四个子帧中配置一个SRS子帧,其余三个子帧全部作为PUSCH的时频资源。若一个上行信号周期中共有8个子帧,则原先共配置有4个SRS子帧。经现有技术优化后,共配置有2个SRS子帧,达到降低SRS占用的时频资源。
在实现上述SRS传输的过程中,发明人发现现有技术中至少存在如下问题:现有技术虽然能够降低SRS占用的时频资源,但SRS子帧密度也将随之降低,使得SRS的发送周期变长,降低信道测量效率。
发明内容
有鉴于此,本发明提供的一种SRS传输的方法、用户设备及演进基站,用于解决通过减少SRS子帧数量降低SRS占用的时频资源,导致信道测量效率低的问题。
第一方面,本发明提供了一种测量参考信号SRS传输的方法,其特征在于,包括:
根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置
包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;
根据SRS梳齿参数,将用于传输SRS的正交频分复用OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数;
向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在所述第一方面的第一种可能的实现方式中,在所述根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧之前,所述方法还包括:
接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
在所述第一方面的第一种可能的实现方式中,还提供了所述第一方面的第二种可能的实现方式,在所述第一方面的第二种可能的实现方式中,所述接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:
接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;
所述根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:
根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;
所述根据SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,包括:
根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
在所述第一方面或所述第一方面的第一种可能或第二种可能的实现方式中,还提供了所述第一方面的第三种可能的实现方式,在所述第一方面的第三种可能的实现方式中,在所述向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合之前,所述方法还包括:
根据所述SRS梳齿参数计算PUSCH数据的发射功率。
在所述第一方面或所述第一方面的第一种可能、第二种可能或第三种可能的实现方式中,还提供了所述第一方面的第四种可能的实现方式,在所述第一方面的第四种可能的实现方式中,在向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合之前,所述方法还包括:
当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;
将映射后的PUSCH数据发送给eNB。
第二方面,本发明实施例还提供了一种SRS传输的方法,包括:
接收用于发送用户设备UE发送的测量参考信号SRS的SRS子帧,所述SRS子帧中用于传输SRS的正交频分复用OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;
接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在所述第二方面的第一种可能的实现方式中,在所述接收用户设备UE发送的SRS子帧之前,所述方法还包括:
向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/
或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
在所述第二方面的第一种可能的实现方式中,还提供了所述第二方面的第二种可能的实现方式,在所述第二方面的第二种可能的实现方式中,所述向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:
向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
在所述第二方面的第一种可能的实现方式中,还提供了所述第二方面的第三种可能的实现方式,在所述第二方面的第三种可能的实现方式中,所述接收用于发送用户设备UE发送的SRS的SRS子帧,包括:
接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
第三方面,本发明实施例还提供了一种用户设备UE,包括:
子帧配置单元,用于根据测量参考信号SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;
梳齿配置单元,用于根据SRS梳齿参数,将子帧配置单元配置的SRS子帧中用于传输SRS的正交频分复用OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数;
发送单元,用于向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在所述第三方面的第一种可能的实现方式中,所述用户设备还包括:
接收单元,用于接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
在所述第三方面的第一种可能的实现方式中,还提供了所述第三方面的第二种可能的实现方式,在所述第三方面的第二种可能的实现方式中,根据权利要求11所述的用户设备,其特征在于,所述接收单元用于接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:
所述接收单元,用于接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;
所述子帧配置单元,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:
所述子帧配置单元,用于根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;
所述梳齿配置单元,用于根据SRS梳齿参数,将子帧配置单元配置的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述梳齿配置单元,用于根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
在所述第三方面或所述第三方面的第一种可能或第二种可能的实现方式中,还提供了所述第三方面的第三种可能的实现方式,在所述第三方面的第三种可能的实现方式中,所述用户设备还包括:
计算单元,用于根据所述接收单元接收的所述SRS梳齿参数计算PUSCH数据的发射功率。
在所述第三方面或所述第三方面的第一种可能、第二种可能的实现方式中,还提供了所述第三方面的第四种可能的实现方式,在所述第三方面的第四种可能的实现方式中,所述用户设备还包括:
映射单元,用于当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS
的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;
所述发送单元还用于,将映射单元映射后的PUSCH数据发送给eNB。
第四方面,本发明还提供了一种演进基站,包括:
接收单元,用于接收用于发送用户设备UE发送的测量参考信号SRS的SRS子帧,所述SRS子帧中用于传输SRS的正交频分复用OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;
所述接收单元还用于,接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在所述第四方面的第一种可能的实现方式中,所述演进基站还包括:
发送单元,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
在所述第四方面的第一种可能的实现方式中,还提供了所述第四方面的第二种可能的实现方式,在所述第四方面的第二种可能的实现方式中,所述发送单元,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述发送单元,用于向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
在所述第四方面的第一种可能的实现方式中,还提供了所述第四方面的第三种可能的实现方式,在所述第四方面的第三种可能的实现方式中,所述接收单元,用于接收用户设备UE发送的SRS子帧,包括:
所述接收单元,用于接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的
PUSCH数据。
第五方面,本发明还提供了一种用户设备UE,包括:
调制解调器,用于根据测量参考信号SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;
根据SRS梳齿参数,将SRS子帧中用于传输SRS的正交频分复用OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数;
发送端口,用于向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在所述第五方面的第一种可能的实现方式中,所述用户设备还包括:
接收端口,用于接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
在所述第五方面的第一种可能的实现方式中,还提供了所述第五方面的第二种可能的实现方式,在所述第五方面的第二种可能的实现方式中,所述接收端口用于接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:
所述接收端口,用于接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;
所述调制解调器,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:
所述调制解调器,用于根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;
所述调制解调器,用于根据SRS梳齿参数,将SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配
置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述调制解调器,用于根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
在所述第五方面或所述第五方面的第一种可能或第二种可能的实现方式中,还提供了所述第五方面的第三种可能的实现方式,在所述第五方面的第三种可能的实现方式中,所述用户设备还包括:
处理器,用于根据所述接收端口接收的所述SRS梳齿参数计算PUSCH数据的发射功率。
在所述第五方面或所述第五方面的第一种可能、第二种可能或第三种可能的实现方式中,还提供了所述第五方面的第四种可能的实现方式,在所述第五方面的第四种可能的实现方式中,所述处理器还用于,当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;
所述发送端口还用于,将所述处理器映射后的PUSCH数据发送给eNB。
第六方面,本发明还提供了一种演进基站eNB,其特征在于,包括:
接收端口,用于接收用于发送用户设备UE发送的测量参考信号SRS的SRS子帧,所述SRS子帧中用于传输SRS的正交频分复用OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;
所述接收端口还用于,接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在所述第六方面的第一种可能的实现方式中,所述演进基站还包括:
发送端口,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS
子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
在所述第六方面的第一种可能的实现方式中,还提供了所述第六方面的第二种可能的实现方式,在所述第六方面的第二种可能的实现方式中,所述发送端口,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述发送端口,用于向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
在所述第六方面的第一种可能的实现方式中,还提供了所述第六方面的第三种可能的实现方式,在所述第六方面的第三种可能的实现方式中,所述接收端口,用于接收用户设备UE发送的SRS子帧,包括:
所述接收端口,用于接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
本发明提供的SRS传输的方法、用户设备及演进基站,能够根据小区SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述小区SRS梳齿参数用于描述用于发送SRS的梳齿;向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据。现有技术中,未设置小区SRS梳齿参数,因此无法使用SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿发送SRS,此时需要使用用于传输SRS的OFDM符号中全部梳齿发送SRS。当需要降低SRS所占用的信道资源时,只能够通过减小SRS子帧的密度来降低SRS所占用的信道资源,此时SRS子帧周期变长,进而导致上行信道测量不准确的问题,影响上行信道测量效率。本发明中,通过在用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,进而实现在用于传输SRS的
OFDM符号中使用一部分梳齿发送SRS,使用另一部分梳齿发送PUSCH数据,进而在不改变SRS子帧周期的情况下,即保持信道测量效率,有能够传输更多的PUSCH数据,提高系统吞吐量。
由于定义了两个周期,eNB将小区SRS子帧分成两类,其中第一类小区SRS子帧用两个梳齿,另一类小区SRS子帧用一个梳齿。与实施例一相比,本方法在资源分配方面具有更好的灵活性。
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为现有技术中SRS子帧的结构示意图;
图2为现有技术中降低SRS开销采用的上行数据结构示意图;
图3为本发明实施例中第一个SRS的传输方法的流程图;
图4为本发明实施例中一个SRS梳齿的配置示意图;
图5为本发明实施例中另一个SRS梳齿的配置示意图;
图6为本发明实施例中第二个SRS的传输方法的流程图;
图7为本发明实施例中第三个SRS的传输方法的流程图;
图8为本发明实施例中第四个SRS的传输方法的流程图;
图9为本发明实施例中第五个SRS的传输方法的流程图;
图10为本发明实施例中第一个用户设备的结构示意图;
图11为本发明实施例中第二个用户设备的结构示意图;
图12为本发明实施例中第一个演进基站的结构示意图;
图13为本发明实施例中第二个演进基站的结构示意图;
图14为本发明实施例中第三个用户设备的结构示意图;
图15为本发明实施例中第四个用户设备的结构示意图;
图16为本发明实施例中第三个演进基站的结构示意图;
图17为本发明实施例中第四个演进基站的结构示意图。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明实施例提供了一种SRS传输的方法,所述方法应用于UE上,如图3所示,所述方法包括:
步骤301、根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数。
小区SRS子帧配置参数用于描述上行信号中具体哪些子帧用于发送SRS。小区SRS带宽配置参数用于描述SRS子帧中每个OFDM符号所含有的子载波的数量。例如:根据小区SRS子帧配置参数和小区SRS带宽配置参数,在每两个子帧中配置一个子帧用于发送SRS,即每两个子帧中有一个SRS子帧,SRS子帧中每个OFDM符号所含有的子载波的数量为6。
用户SRS子帧配置参数所描述的SRS子帧集合为全部小区SRS子帧的一个子集,用户SRS子帧配置参数用于描述在上行信号中用户可以使用的SRS子帧是哪些。
步骤302、根据SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,PUSCH梳齿用于发送PUSCH数据,SRS梳齿参数用于描述用于发送SRS的梳齿,SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
通常,SRS子帧中的最后一个OFDM符号用于发送SRS。SRS梳齿参数为一个整型数值,其为SRS梳齿标识。根据SRS梳齿参数从现有梳齿中选择一个或多个梳齿,将选择出的梳齿配置为SRS梳齿,将剩余的梳齿配置为PUSCH梳齿。SRS子帧中其余
OFDM符号均用于传输PUCSH数据,其余OFDM符号为除了用于传输SRS的OFDM符号以外的OFDM符号。OFDM符号中的总梳齿个数与梳齿中每两个子载波的间距中包含的总子载波数相等。SRS梳齿可以只有一个,例如:如图4所示,用于传输SRS的OFDM符号中共有6个子载波,分为两个梳齿,两个梳齿的梳齿标识分别为0和1,如果SRS梳齿参数为0,则将梳齿标识为0的梳齿配置为SRS梳齿,将梳齿标识为1的梳齿(其余梳齿)配置为PUSCH梳齿。其中,梳齿0由子载波0、子载波2、子载波4组成,梳齿1由子载波1、子载波3、子载波5组成。SRS梳齿还可以有多个,例如:如图5所示,用于传输SRS的OFDM符号中共有10个子载波,分为五个梳齿,其梳齿标识分别为0、1、2、3、4,如果SRS梳齿参数为0、2、4,则将梳齿标识为0、2、4的三个梳齿分别配置为SRS梳齿,将梳齿标识为1、3的梳齿(其余梳齿)分别配置为PUSCH梳齿。其中,梳齿0由子载波0、子载波5组成,梳齿1由子载波1、子载波6组成,梳齿2由子载波2、子载波7组成,梳齿3由子载波3、子载波8组成,梳齿4由子载波4、子载波9组成。
步骤303、向演进基站eNB发送SRS梳齿上的SRS,和/或发送数据OFDM符号集合以及其余梳齿上的PUSCH数据,数据OFDM符号集合为SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
在完成对SRS子帧中各OFDM符号的配置之后,可在用于传输SRS的OFDM符号的SRS梳齿的各子载波中发送SRS,根据业务需求在其余OFDM符号和用于传输SRS的OFDM符号的PUSCH梳齿的各子载波中发送OFDM符号数据。在向SRS子帧中载入数据之后,向eNB发送载入后的SRS数据和OFDM符号数据。可选的,根据UE与eNB之间的距离确定发射功率,如果无法既发送SRS又发送PUSCH数据,则发送SRS或PUSCH数据。
在使用中存在下述三种情况:一、只发送SRS。二、只发送PUSCH。三、既发送SRS,又发送PUSCH。对于情况三,可通过下述三种方式传输SRS和PUSCH:1、在SRS子帧的用于传输SRS的OFDM符号的全部子载波中发送SRS。2、在SRS子帧的用于传输SRS的OFDM符号的全部子载波中发送PUSCH。3、在SRS子帧的用于传输SRS的OFDM符号的SRS梳齿上发送SRS,在SRS子帧的用于传输SRS的OFDM符
号的非SRS梳齿上发送PUSCH。
本发明实施例提供的SRS传输的方法,能够根据SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿;向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据。现有技术中,未设置SRS梳齿参数,因此无法使用SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿发送SRS,此时需要使用用于传输SRS的OFDM符号中全部梳齿发送SRS。当需要降低SRS所占用的信道资源时,只能够通过减小SRS子帧的密度来降低SRS所占用的信道资源,此时SRS子帧周期变长,进而导致上行信道测量不准确的问题,影响上行信道测量效率。本发明中,通过在用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,进而实现在用于传输SRS的OFDM符号中使用一部分梳齿发送SRS,使用另一部分梳齿发送PUSCH数据,进而在不改变SRS子帧周期的情况下,即保持信道测量效率,有能够传输更多的PUSCH数据,提高系统吞吐量。
本发明实施例还提供了一种SRS传输的方法,作为对图3所示方法的进一步说明,如图6所示,在步骤301、根据SRS子帧配置参数和SRS带宽配置参数,确定SRS子帧之前,所述方法还包括:
步骤601、接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
本发明实施例提供的SRS传输的方法,能够接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数使得UE能够根据eNB当前的SRS梳齿参数载入SRS,提高SRS传输的实时性。
本发明实施例还提供了一种SRS传输的方法,作为对图6所示方法的具体说明,如图7所示,eNB可以向UE发送多个SRS子帧配置,以及与每个SRS子帧配置对应的梳齿参数,具体实现方式如下:
步骤601、接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参
数,包括:
步骤701、接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
SRS子帧配置参数还用于描述SRS子帧中用于传输SRS的OFDM符号的梳齿总量。所述至少两个SRS子帧配置参数,能够描述多种OFDM符号的梳齿总量。通过与SRS子帧配置参数一一对应的SRS梳齿参数,能够对具有不同梳齿总量的OFDM符号中的SRS梳齿,以及相同梳齿总量的OFDM符号中的SRS梳齿进行定义,进而定义多个SRS子帧周期。例如:eNB将小区SRS子帧分成两类,SRS子帧的分布如表1所示,其中通过配置1定义第一类SRS子帧使用用于传输SRS的OFDM中两个梳齿,通过配置2定义第二类SRS子帧使用用于传输SRS的OFDM中的一个梳齿,数据子帧用于传输PUSCH数据。
表1
再例如:SRS子帧配置参数描述了三种SRS子帧中用于传输SRS的OFDM符号的梳齿总量,分别为2个(配置一)、2个(配置二)、3个(配置三);与三个SRS子帧配置参数对应的三个SRS梳齿参数分别为“0”(对应配置一)、“0、1”(对应配置二)、“0、1”(对应配置三),SRS带宽配置参数限定的总子载波个数为12。此时,确定三种SRS传输方式:
配置一、定义用于传输SRS的OFDM符号的子载波0、2、4、6、8、10构成梳齿0,子载波1、3、5、7、9、11构成梳齿1,在0、2、4、6、8、10子载波组成的梳齿0中传输SRS。
配置二、定义用于传输SRS的OFDM符号的子载波0、2、4、6、8、10构成梳齿0,子载波1、3、5、7、9、11构成梳齿1,在子载波0、2、4、6、8、10组成的梳齿0
和子载波1、3、5、7、9、11构成的梳齿1中传输SRS。
配置三、定义用于传输SRS的OFDM符号的子载波0、3、6、9构成梳齿0,子载波1、4、7、10构成梳齿1,子载波2、5、8、11构成梳齿2,在子载波0、3、6、9构成的梳齿0和子载波1、4、7、10构成的梳齿1中传输SRS。
对于用于传输SRS的OFDM符号,配置一使用梳齿0和梳齿1中的梳齿0发送SRS,使用了1/2的子载波,配置二使用梳齿0和梳齿1即全部梳齿发送SRS,配置三使用三个梳齿中的两个梳齿发送SRS,即使用2/3的子载波。本发明中通过三种配置达到用于发送SRS的平均子载波比值为(1/2+1+2/3)/3=13/18。现有技术中使用用于传输SRS的OFDM符号中的全部子载波发送SRS。
步骤101、根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:
步骤702、根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧。
步骤102、根据SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将其余梳齿配置为PUSCH梳齿,PUSCH梳齿用于发送PUSCH数据,包括:
步骤703、根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将SRS子帧中的其余梳齿配置为PUSCH梳齿,PUSCH梳齿用于发送PUSCH数据,多个梳齿组成SRS子帧中用于传输SRS的OFDM符号。
本发明实施例提供的SRS传输的方法,能够根据eNB发送的多个SRS子帧配置参数和与之对应的梳齿参数,确定用于传输SRS的OFDM符号中的多种SRS梳齿的配置方式,使得SRS传输更为灵活。
本发明实施例还提供了一种SRS传输的方法,作为对图3所示方法的进一步说明,在步骤103、向eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合之前,所述方法还包括:
根据所述SRS梳齿参数计算PUSCH数据的发射功率。
由于用于传输SRS的OFDM符号中除了发送SRS,还发送PUSCH数据,因此在计算发生率时需要根据其余梳齿的子载波间隔确定发射功率。
具体的,可通过下述公式计算发射功率:
PT=min{Pmax,P0+αPLDL+10log10(M/L)+ΔMCS+δ}
其中PT为发射功率;Pmax为UE的最大发射功率(无论如何进行调整,发射功率不会超过Pmax);P0为目标功率值,也就是eNB希望接收信号的功率值,该数值由eNB通知UE;PLDL为下行的路径损耗,该值可以由UE进行测量得到,并且假设下行路径损耗与上行路径损耗相同;δ为闭环功率控制命令。M是PUSCH的带宽配置参数,L是其余梳齿中各子载波的间隔。
例如,如果其余梳齿为三个梳齿中的一个,其余梳齿中各子载波间隔为3,采用上述公式进行计算时,L设置为3。
本发明实施例提供的SRS传输的方法,能够根据用于传输SRS的OFDM符号中的其余梳齿所占的比例,确定发射功率,达到精确发射功率计算的效果。
本发明实施例还提供了一种SRS传输的方法,作为对图3所示方法的进一步说明,如图8所示,在步骤103、向eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合之前,所述方法还包括:
步骤801、当PUSCH数据为上行控制信息UCI时,对用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射。
步骤802、将映射后的PUSCH数据发送给eNB。
当需要将上行控制信息(Uplink Control Information,简称UCI)通过PUSCH进行传输时,UE将UCI作为PUSCH数据。由于本发明中,在SRS子帧的用于传输SRS的OFDM符号中,配置有SRS梳齿和其余梳齿,因此除了对SRS子帧的数据OFDM符号集合进行映射,还要对其余梳齿的各子载波中的PUSCH数据进行映射。
本发明实施例提供的SRS传输的方法,能够对根据SRS梳齿参数得到的其余梳齿中发送的PUSCH数据(UCI)进行映射,提高SRS子帧中发送的UCI数据量,进而提高数据传输效率。
本发明实施例还提供了一种SRS传输的方法,所述方法应用于eNB中,如图9所示,所述方法包括:
步骤901、接收用于发送用户设备UE发送的SRS的SRS子帧,SRS子帧中用于传输SRS的OFDM符号由SRS梳齿和其余梳齿组成,SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,PUSCH梳齿用于发送PUSCH数据。
步骤902、接收SRS梳齿上的SRS,和/或数据OFDM符号集合以及其余梳齿上的PUSCH数据,数据OFDM符号集合为SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
本发明实施例提供的SRS传输的方法,能够接收用户设备UE发送的SRS子帧,所述SRS子帧中用于传输SRS的OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据。由于仅分配SRS子帧中用于传输SRS的OFDM符号中的SRS梳齿来发送SRS,因此减少了SRS的系统开销,并保证了SRS子帧周期。同时,由于其余梳齿中发送了PUSCH数据,因此上行数据的传输速率将提高。
本发明实施例还提供了一种SRS传输的方法,作为对图9所示方法的进一步说明,在步骤901、接收用户设备UE发送的SRS子帧之前,所述方法还包括:
向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
根据信道的使用情况,确定SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。其中,SRS子帧配置参数、SRS带宽配置参数与现有技术相同,SRS子帧配置参数用于描述哪些子帧为SRS子帧,SRS带宽配置参数用于描述SRS子帧中的每个OFDM符号所占有的子载波数量。SRS梳齿参数用于描述在用于传输SRS的OFDM符号中哪些梳齿用于发送SRS。
本发明实施例提供的SRS传输的方法,能够预先根据信道的使用情况,向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述
用于发送SRS的梳齿,进而提高SRS传输的实时性。
本发明实施例还提供了一种SRS传输的方法,作为对图9所示方法的具体说明,步骤901、向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,可通过下述方式进行实施:
向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
本发明实施例提供的SRS传输的方法,能够向UE发送多个SRS子帧配置参数和与之对应的梳齿参数,以便UE确定用于传输SRS的OFDM符号中的多种SRS梳齿的配置方式,使得SRS传输更为灵活。
本发明实施例还提供了一种SRS传输的方法,作为对图9所示方法的具体说明,步骤901、接收用于发送用户设备UE发送的SRS的SRS子帧,包括:
接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
本发明实施例提供的SRS传输的方法,能够对对其余梳齿中的UCI数据进行读取,提高SRS子帧中发送的UCI数据量,进而提高数据传输效率。
本发明实施例还提供了一种用户设备UE,应用于UE中,用于实施图3至图8所示的方法,如图10所示,所述用户设备包括:
子帧配置单元1001,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数。
梳齿配置单元1002,用于根据SRS梳齿参数,将子帧配置单元1001配置的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
发送单元1003,用于向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合
为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
进一步的,如图11所示,所述用户设备还包括:
接收单元1101,用于接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
进一步的,所述接收单元1101用于接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:
所述接收单元1101,用于接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;
所述子帧配置单元1001,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:
所述子帧配置单元1001,用于根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;
所述梳齿配置单元1002,用于根据SRS梳齿参数,将子帧配置单元1001配置的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述梳齿配置单元1002,用于根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
进一步的,所述用户设备还包括:
计算单元1102,用于根据所述接收单元1101接收的所述SRS梳齿参数计算PUSCH数据的发射功率。
进一步的,所述用户设备还包括:
映射单元1103,用于当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;
所述发送单元1003还用于,将映射单元1103映射后的PUSCH数据发送给eNB。
本发明实施例还提供了一种演进基站,用于实施图9所示的方法,如图12所示,所述演进基站包括:
接收单元1201,用于接收用于发送用户设备UE发送的SRS的SRS子帧,所述SRS子帧中用于传输SRS的OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;
所述接收单元1201还用于,接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
进一步的,如图13所示,所述演进基站还包括:
发送单元1301,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
进一步的,所述发送单元1301,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述发送单元1301,用于向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
进一步的,所述接收单元1201,用于接收用户设备UE发送的SRS子帧,包括:
所述接收单元1201,用于接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
本发明实施例还提供了一种用户设备UE,应用于UE中,用于实施图3至图8所示的方法,如图14所示,所述用户设备包括:
调制解调器1401,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;
根据SRS梳齿参数,将SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数;
发送端口1402,用于向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
进一步的,如图15所示,所述用户设备还包括:
接收端口1501,用于接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
进一步的,所述接收端口1501用于接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:
所述接收端口1501,用于接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;
所述调制解调器1401,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:
所述调制解调器1401,用于根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;
所述调制解调器1401,用于根据SRS梳齿参数,将SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述调制解调器1401,用于根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
进一步的,所述用户设备还包括:
处理器1502,用于根据所述接收端口1501接收的所述SRS梳齿参数计算PUSCH数据的发射功率。
进一步的,所述处理器1502还用于,当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;
所述发送端口1402还用于,将所述处理器1502映射后的PUSCH数据发送给eNB。
本发明实施例还提供了一种演进基站eNB,应用于eNB中,用于实施图9所示的方法,如图16所示,所述演进基站包括:
接收端口1601,用于接收用于发送用户设备UE发送的SRS的SRS子帧,所述SRS子帧中用于传输SRS的OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;
所述接收端口1601还用于,接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
进一步的,如图17所示,所述演进基站还包括:
发送端口1701,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
进一步的,所述发送端口1701,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:
所述发送端口1701,用于向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
进一步的,所述接收端口1601,用于接收用户设备UE发送的SRS子帧,包括:
所述接收端口1601,用于接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。
Claims (27)
- 一种测量参考信号SRS传输的方法,其特征在于,包括:根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;根据SRS梳齿参数,将用于传输SRS的正交频分复用OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数;向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
- 根据权利要求1所述的方法,其特征在于,在所述根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧之前,所述方法还包括:接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
- 根据权利要求2所述的方法,其特征在于,所述接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;所述根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;所述根据SRS梳齿参数,将用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,包括:根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所 述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
- 根据权利要求1至3中任一项所述的方法,其特征在于,在所述向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合之前,所述方法还包括:根据所述SRS梳齿参数计算PUSCH数据的发射功率。
- 根据权利要求1至3中任一项所述的方法,其特征在于,在向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合之前,所述方法还包括:当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;将映射后的PUSCH数据发送给eNB。
- 一种SRS传输的方法,其特征在于,包括:接收用于发送用户设备UE发送的测量参考信号SRS的SRS子帧,所述SRS子帧中用于传输SRS的正交频分复用OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
- 根据权利要求6所述的方法,其特征在于,在所述接收用户设备UE发送的SRS子帧之前,所述方法还包括:向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户 SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
- 根据权利要求7所述的方法,其特征在于,所述向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
- 根据权利要求7所述的方法,其特征在于,所述接收用于发送用户设备UE发送的SRS的SRS子帧,包括:接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
- 一种用户设备UE,其特征在于,包括:子帧配置单元,用于根据测量参考信号SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;梳齿配置单元,用于根据SRS梳齿参数,将子帧配置单元配置的SRS子帧中用于传输SRS的正交频分复用OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数;发送单元,用于向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
- 根据权利要求10所述的用户设备,其特征在于,所述用户设备还包括:接收单元,用于接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
- 根据权利要求11所述的用户设备,其特征在于,所述接收单元用于接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:所述接收单元,用于接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置 参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;所述子帧配置单元,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:所述子帧配置单元,用于根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;所述梳齿配置单元,用于根据SRS梳齿参数,将子帧配置单元配置的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:所述梳齿配置单元,用于根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
- 根据权利要求10至12中任一项所述的用户设备,其特征在于,所述用户设备还包括:计算单元,用于根据所述接收单元接收的所述SRS梳齿参数计算PUSCH数据的发射功率。
- 根据权利要求10至12中任一项所述的用户设备,其特征在于,所述用户设备还包括:映射单元,用于当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;所述发送单元还用于,将映射单元映射后的PUSCH数据发送给eNB。
- 一种演进基站,其特征在于,包括:接收单元,用于接收用于发送用户设备UE发送的测量参考信号SRS的SRS子帧,所述SRS子帧中用于传输SRS的正交频分复用OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;所述接收单元还用于,接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
- 根据权利要求15所述的演进基站,其特征在于,所述演进基站还包括:发送单元,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
- 根据权利要求16所述的演进基站,其特征在于,所述发送单元,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:所述发送单元,用于向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
- 根据权利要求16所述的演进基站,其特征在于,所述接收单元,用于接收用户设备UE发送的SRS子帧,包括:所述接收单元,用于接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
- 一种用户设备UE,其特征在于,包括:调制解调器,用于根据测量参考信号SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;根据SRS梳齿参数,将SRS子帧中用于传输SRS的正交频分复用OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS梳齿参数包括小区SRS梳齿参数和/ 或用户SRS梳齿参数;发送端口,用于向演进基站eNB发送所述SRS梳齿上的所述SRS,和/或发送数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
- 根据权利要求19所述的用户设备,其特征在于,所述用户设备还包括:接收端口,用于接收演进节点eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数。
- 根据权利要求20所述的用户设备,其特征在于,所述接收端口用于接收eNB发送的SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,包括:所述接收端口,用于接收eNB发送的至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应;所述调制解调器,用于根据SRS子帧配置参数和SRS带宽配置参数,配置SRS子帧,包括:所述调制解调器,用于根据至少两个SRS子帧配置参数和SRS带宽配置参数,配置至少两种SRS子帧;所述调制解调器,用于根据SRS梳齿参数,将SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,所述SRS梳齿用于发送SRS,将其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:所述调制解调器,用于根据每个SRS梳齿参数将与之对应的SRS子帧中用于传输SRS的OFDM符号中的至少一个梳齿配置为SRS梳齿,将所述SRS子帧中的其余梳齿配置为PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据,所述多个梳齿组成所述SRS子帧中用于传输SRS的OFDM符号。
- 根据权利要求19至21中任一项所述的用户设备,其特征在于,所述用户设备还包括:处理器,用于根据所述接收端口接收的所述SRS梳齿参数计算PUSCH数据的发射功率。
- 根据权利要求22所述的用户设备,其特征在于,所述处理器还用于,当所述PUSCH数据为上行控制信息UCI时,对所述用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合进行映射;所述发送端口还用于,将所述处理器映射后的PUSCH数据发送给eNB。
- 一种演进基站eNB,其特征在于,包括:接收端口,用于接收用于发送用户设备UE发送的测量参考信号SRS的SRS子帧,所述SRS子帧中用于传输SRS的正交频分复用OFDM符号由SRS梳齿和其余梳齿组成,所述SRS梳齿用于发送SRS,将其余梳齿配置为上行物理层共享信道PUSCH梳齿,所述PUSCH梳齿用于发送PUSCH数据;所述接收端口还用于,接收所述SRS梳齿上的所述SRS,和/或数据OFDM符号集合以及所述其余梳齿上的PUSCH数据,所述数据OFDM符号集合为所述SRS子帧中除用于传输SRS的OFDM符号以外的OFDM符号的集合。
- 根据权利要求24所述的演进基站,其特征在于,所述演进基站还包括:发送端口,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,所述SRS子帧配置包括小区SRS子帧配置和/或用户SRS子帧配置;所述SRS带宽配置参数包括小区SRS带宽配置参数和/或用户SRS带宽配置参数;所述SRS梳齿参数包括小区SRS梳齿参数和/或用户SRS梳齿参数。
- 根据权利要求25所述的演进基站,其特征在于,所述发送端口,用于向UE发送SRS子帧配置参数、SRS带宽配置参数和SRS梳齿参数,所述SRS梳齿参数用于描述用于发送SRS的梳齿,包括:所述发送端口,用于向UE发送至少两个SRS子帧配置参数、SRS带宽配置参数和至少两个SRS梳齿参数,SRS子帧配置参数与SRS梳齿参数一一对应。
- 根据权利要求25所述的演进基站,其特征在于,所述接收端口,用于接收用户设备UE发送的SRS子帧,包括:所述接收端口,用于接收UE发送的映射后的PUSCH数据,所述映射后的PUSCH数据包括用于传输SRS的OFDM符号中的其余梳齿和数据OFDM符号集合中发送的PUSCH数据。
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CN102377714A (zh) * | 2010-08-12 | 2012-03-14 | 普天信息技术研究院有限公司 | 一种增强上行侦听参考信号的方法和装置 |
WO2013049962A1 (en) * | 2011-10-08 | 2013-04-11 | Huawei Technologies Co., Ltd. | Sounding reference signal transmission |
US20130195084A1 (en) * | 2012-01-27 | 2013-08-01 | Qualcomm Incorporated | Physical layer issues related to multi-ta group support |
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CN101931456A (zh) * | 2010-08-09 | 2010-12-29 | 中兴通讯股份有限公司 | 一种移动通信系统的无线帧及测量参考信号的发送方法 |
CN102377714A (zh) * | 2010-08-12 | 2012-03-14 | 普天信息技术研究院有限公司 | 一种增强上行侦听参考信号的方法和装置 |
WO2013049962A1 (en) * | 2011-10-08 | 2013-04-11 | Huawei Technologies Co., Ltd. | Sounding reference signal transmission |
US20130195084A1 (en) * | 2012-01-27 | 2013-08-01 | Qualcomm Incorporated | Physical layer issues related to multi-ta group support |
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CN109327290A (zh) * | 2017-07-31 | 2019-02-12 | 中国移动通信有限公司研究院 | 探测参考信号的发送方法、装置、终端、基站及通信设备 |
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