WO2012152146A1 - 发送配置信息和选择发射天线的方法、系统及设备 - Google Patents

发送配置信息和选择发射天线的方法、系统及设备 Download PDF

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Publication number
WO2012152146A1
WO2012152146A1 PCT/CN2012/073156 CN2012073156W WO2012152146A1 WO 2012152146 A1 WO2012152146 A1 WO 2012152146A1 CN 2012073156 W CN2012073156 W CN 2012073156W WO 2012152146 A1 WO2012152146 A1 WO 2012152146A1
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WIPO (PCT)
Prior art keywords
configuration information
user equipment
transmit antenna
antenna
component carrier
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PCT/CN2012/073156
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English (en)
French (fr)
Inventor
潘学明
拉盖施
丁昱
孙韶辉
Original Assignee
电信科学技术研究院
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Publication of WO2012152146A1 publication Critical patent/WO2012152146A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system, and device for transmitting configuration information and selecting a transmitting antenna.
  • Background Art In an LTE (Long Term Evolution) system, there is one type of UE (User Equipment) having a single transmitter channel but equipped with two transmitting antennas. This type of UE obtains the antenna diversity gain by selecting/switching the transmitting antenna used to transmit the uplink signal, and improves the performance of the uplink transmission.
  • LTE Long Term Evolution
  • the architecture of this type of UE is shown in Figure 1.
  • the baseband signal is connected to the antenna module after inverse fast Fourier transform (IFFT), digital-to-analog conversion (DAC), carrier modulation, and power amplifier (PA).
  • IFFT inverse fast Fourier transform
  • DAC digital-to-analog conversion
  • PA power amplifier
  • the UE is equipped with two antenna modules, and the antenna module is connected to the PA through a switch.
  • Each antenna module is composed of a radio frequency filter (RF filter) and a transmitting antenna (Tx antenna). Through the switch between the PA and the antenna module, the corresponding antenna module is selected for uplink signal transmission.
  • RF filter radio frequency filter
  • Tx antenna transmitting antenna
  • the UE transmit antenna selection/handover technology in LTE Rel-8/9 (Release 8/9), specifically including the transmit antenna selection and SRS (Sounding Reference Signal) of the PUSCH (Physical Uplink Shared Channel)
  • the transmit antenna is switched.
  • the antenna selection function of the UE is enabled by the RRC (Radio Resource Control) signaling configuration.
  • the UE needs to report to the base station whether it has the capability of transmitting antenna selection before configuration.
  • a carrier aggregation technology is introduced in the LTE Rel-10 (Release 10).
  • the UE can receive or transmit data on multiple CCs (Component Carriers) to improve the peak rate and user experience of the UE.
  • CCs Component Carriers
  • each CC becomes a cell (Cell), and each CC has a cell index number (Cell Index) (an integer ranging from 0 to 7).
  • Cell Index an integer ranging from 0 to 7
  • Embodiments of the present invention provide a method, system, and device for transmitting configuration information and selecting a transmit antenna, so as to implement a UE to select a transmit antenna in a carrier aggregation environment.
  • a method for selecting a transmit antenna according to an embodiment of the present invention is applied to carrier aggregation, and the method includes: A user equipment having multiple transmit antennas receives configuration information on the network side;
  • the user equipment selects a transmit antenna according to the received configuration information.
  • the user equipment selecting the transmit antenna includes:
  • the user equipment selecting the transmit antenna includes:
  • the user equipment cyclically switches to use a plurality of transmit antennas SRS according to a setting sequence corresponding to each member carrier when determining that the sounding reference signal SRS needs to be transmitted.
  • the user equipment selecting the transmit antenna includes:
  • the user equipment needs to transmit the PUSCH on the component carrier that needs to carry the current subframe in the component carrier group, and uses the transmit antenna selected for the current subframe.
  • the method before the user equipment receives the transmit antenna indication information, the method further includes:
  • the network side carries the transmit antenna indication information by using the DCI format 0 corresponding to each uplink component carrier UL CC, and is used to indicate that the user equipment uses the same transmit antenna to send the PUSCH in the corresponding UL CC in the same uplink subframe.
  • the method further includes:
  • the user equipment does not select according to the transmit antenna indication information on any component carrier.
  • the carrier aggregation is continuous carrier aggregation
  • the user equipment selecting the transmit antenna includes:
  • the user equipment when determining that the SRS needs to be sent, selects a transmit antenna used on the specified component carrier according to the configuration information;
  • the user equipment selects a transmit antenna used on other component carriers, wherein the number of transmit antennas used on the selected other component carriers is the same as the number of the last used transmit antenna on the specified component carrier.
  • the specified component carrier is a component carrier with a corresponding cell index number Cell Index.
  • the carrier aggregation is discontinuous carrier aggregation or cross-band carrier aggregation or continuous carrier aggregation.
  • An apparatus for selecting a transmitting antenna, which is applied to carrier aggregation, has multiple transmitting antennas, and the device includes:
  • a receiving module configured to receive configuration information on the network side
  • a selection module is configured to select a transmitting antenna according to the received configuration information.
  • the selection module is specifically configured to:
  • the transmitter antenna corresponding to each component carrier is selected by itself; the PUSCH needs to be sent, and the configuration information needs to be determined according to the received configuration information.
  • the closed loop mode the transmit antenna indication information from the network side is received, and the transmit antenna corresponding to each component carrier is selected according to the transmit antenna indication information.
  • the selection module is specifically configured to:
  • a plurality of transmitting antennas SRS are cyclically switched according to a setting order corresponding to each component carrier.
  • the selection module is specifically configured to:
  • the transmitter antenna corresponding to each component carrier is selected by itself; the PUSCH needs to be sent, and the configuration information needs to be determined according to the received configuration information.
  • the transmitting antenna indication information from the network side is received, and a transmitting antenna is selected for the current subframe according to the transmitting antenna indication information.
  • the selection module is further configured to:
  • the PUSCH is transmitted using the transmit antenna selected for the current subframe.
  • the selection module is further configured to:
  • the transmit antenna indication information indicates that the transmit antennas used on different component carriers of the same subframe are all different or partially identical, the selection is not performed according to the transmit antenna indication information on any component carrier.
  • the selection module is specifically configured to:
  • the transmitting antenna used on the specified component carrier is selected according to the configuration information; the transmitting antenna used on the other component carriers is selected, and the number of the transmitting antenna used on the selected other component carrier is specified and specified.
  • the last used transmit antenna on the member carrier has the same number.
  • the specified component carrier is a component carrier with a minimum Cell Index.
  • the carrier aggregation is discontinuous carrier aggregation or cross-band carrier aggregation or continuous carrier aggregation.
  • a method for sending configuration information is applied to carrier aggregation, and the method includes: determining, by the network side, configuration information;
  • the network side sends the determined configuration information to the user terminal, and is used to instruct the user terminal to select a transmitting antenna according to the configuration information.
  • the sending, by the network side, the determined configuration information includes:
  • the network side carries the transmit antenna indication information by using the downlink control information format DCI format 0 corresponding to each uplink component carrier UL CC, and is used to indicate that the user equipment uses the same transmit antenna in the same uplink subframe as the corresponding UL CC.
  • Send PUSCH the downlink control information format DCI format 0 corresponding to each uplink component carrier UL CC
  • the device for sending configuration information is applied to carrier aggregation, and the device includes: a determining module, configured to determine configuration information;
  • a sending module configured to send the determined configuration information to the user terminal, where the user terminal is configured to select the transmitting antenna.
  • the sending module is specifically configured to:
  • the DCI format 0 corresponding to each UL CC carries the transmit antenna indication information, and is used to indicate that the user equipment uses the same transmit antenna to transmit the PUSCH in the corresponding UL CC in the same uplink subframe.
  • a system for selecting a transmit antenna is provided for carrier aggregation, and the system includes: a network side device, configured to send configuration information;
  • a user equipment having a plurality of transmitting antennas for selecting a transmitting antenna according to the received configuration information.
  • FIG. 1 is a schematic structural diagram of a UE having an antenna selection capability in the prior art
  • FIG. 2 is a schematic flowchart of a method for selecting a transmitting antenna according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an apparatus for selecting a transmitting antenna according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a system for selecting a transmitting antenna according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a UE for continuous carrier aggregation
  • FIG. 6 is a schematic structural diagram of a UE of a discontinuous (or cross-band) carrier aggregation
  • FIG. 7 is a schematic diagram of selection of a transmit antenna based on a PUSCH according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of selection of a transmit antenna based on SRS according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a method for sending configuration information according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an apparatus for transmitting configuration information according to an embodiment of the present invention.
  • a user equipment with multiple transmit antennas selects a transmit antenna according to the received configuration information in a carrier aggregation environment.
  • the invention realizes that the UE can select a transmitting antenna in a carrier aggregation environment, so that the multi-carrier transmission is provided
  • the UE capable of the antenna selection function can normally use the antenna selection function in the carrier aggregation environment, thereby improving the transmission performance and resource utilization of the UE.
  • the method for selecting a transmitting antenna includes the following steps:
  • Step 201 A user equipment that has multiple transmit antennas receives configuration information on the network side.
  • Step 202 The user equipment selects a transmit antenna according to the received configuration information.
  • the component carrier CCs in the carrier aggregation may be consecutive in frequency, for example, five consecutive 20 MHz carriers form a carrier aggregation of 100 MHz bandwidth; each component carrier in carrier aggregation may also be discontinuous in frequency, even in different frequency bands. (band).
  • a UE architecture supporting continuous carrier aggregation is shown in FIG. 5, wherein the UE is only equipped with one power amplifier PA for amplifying the transmission signals of the two CCs.
  • Figure 6 shows a UE architecture supporting non-contiguous (or cross-band) carrier aggregation, where the UE is equipped with two PAs, each PA is used for the amplification of the transmission signal of one CC, at which time the two CCs have their own independent Launch channel.
  • the structure of the UE is different from that of the continuous segment carrier aggregation, and the corresponding selection of the transmitting antenna may be different. The following description will be made.
  • Carrier aggregation is a discontinuous or cross-band carrier aggregation.
  • the transmitting antenna selection mode of the PUSCH and the transmitting antenna selection mode of the SRS may be included.
  • each CC can independently perform transmit antenna selection.
  • Method 1 The transmission antenna selection mode of PUSCH.
  • step 202 the user equipment needs to send the PUSCH (that is, the information is sent through the PUSCH, the same below), and when it is determined according to the received configuration information that the open loop mode needs to be used, the corresponding transmit antennas of each component carrier are respectively selected. That is, the user equipment can separately select which antenna to transmit PUSCH 0 on the subframe in which the PUSCH is transmitted in each component carrier.
  • step 202 when the user equipment needs to send the PUSCH, and determines that the closed loop mode needs to be used according to the received configuration information, the user equipment receives the transmit antenna indication information from the network side (the information is used to notify the terminal of which transmit antenna is selected), and The transmitting antenna corresponding to each component carrier is selected according to the transmitting antenna indication information, that is, the user equipment selects which antenna to transmit the PUSCH on the subframe in which the PUSCH is transmitted in each component carrier according to the transmitting antenna indication information.
  • the network side may send, on each carrier, transmit antenna indication information for the carrier, for example, transmitting transmit antenna indication information for carrier A on carrier A, and transmitting transmit antenna indication information for carrier B on carrier B, correspondingly On which carrier the user equipment receives the transmit antenna indication information, it knows which carrier the transmit antenna indication information is for; the network side may also transmit the transmit antenna indication information of all carriers on one carrier, correspondingly, The user equipment respectively determines the identifier for which each of the transmit antenna indication information is for each carrier.
  • the network side can be configured through RRC signaling, that is, the configuration in the first mode.
  • the information is information indicating whether to use the open loop mode or the closed loop mode, and can be carried in the RRC signaling. It should be noted that the embodiment of the present invention is not limited to the manner in which the configuration information is carried by the RRC signaling, and the other manners that can carry the configuration information are applicable to the embodiments of the present invention.
  • the network side can carry the transmit antenna indication information through the DCI format (downlink control information format) 0; correspondingly, the user equipment can receive the transmit antenna indication information through the DCI format 0.
  • DCI format downlink control information format
  • the embodiment of the present invention is not limited to the manner in which the configuration information is carried by the DCI format 0, and the other manners that can carry the indication information of the transmitting antenna are applicable to the embodiment of the present invention.
  • Method 2 The selection method of the transmitting antenna of the SRS.
  • step 202 the user equipment, according to the received configuration information, determines that the SRS needs to be sent, and uses multiple transmit antennas SRS cyclically according to the setting sequence corresponding to each component carrier, that is, the user equipment separately
  • the CC independently performs SRS antenna switching.
  • the transmitting SRS here includes periodically transmitting SRS and aperiodic transmitting SRS.
  • the user equipment has two transmit antennas, and the number is divided into other 0s and 1. If the SRS is periodically transmitted, multiple transmit antennas SRS are used in the set order, that is, transmit antenna 0, transmit antenna 1, and transmit antenna 0. Transmitting antenna 1, transmitting antenna 0, ... and so on.
  • the order set in the implementation may also be that the transmitting antenna 1 is selected first, the transmitting antenna 0 is selected at the next transmission timing, and the transmitting antenna 1 is selected at the next transmission timing, and so on.
  • the specific order may be specified in the protocol, or the user equipment may be notified by the network side.
  • Carrier aggregation is continuous carrier aggregation.
  • the transmit antenna selection mode of the PUSCH and the transmit antenna selection mode of the SRS may be included.
  • Method 1 The transmission antenna selection mode of PUSCH.
  • step 202 when the user equipment determines that the PUSCH needs to be sent, and determines that the open loop mode needs to be used according to the received configuration information, the mobile device corresponding to each component carrier is selected, that is, the user equipment can separately Selecting which antenna to transmit the PUSCH on the subframe in which the PUSCH is transmitted in each component carrier;
  • step 202 the user equipment determines that the PUSCH needs to be sent, and determines that the closed loop mode needs to be used according to the received configuration information, receives the transmit antenna indication information from the network side, and selects one for the current subframe according to the transmit antenna indication information. Root transmit antenna.
  • the user equipment sends a PUSCH on the component carrier that needs to carry the current subframe in the component carrier group using the transmit antenna selected for the current subframe. That is, the user equipment selects the same transmit antenna as the transmit antenna used on different component carriers of the same subframe.
  • the UE transmits the PUSCH using the corresponding transmit antenna according to the transmit antenna indication information on each uplink component carrier UL CC.
  • the network side should schedule the UE to use the same transmit antenna for different UL CCs in the same subframe, and the UE does not expect to receive the transmit antenna indication information corresponding to different UL CCs sent by the network side in the same subframe.
  • the use of different transmit antennas is shown. If such scheduling occurs on the network side, the user equipment may not respond to this type of scheduling. Specifically, when the transmit antenna indication information indicates that the transmit antennas used on different component carriers of the same subframe are all different or partially identical, the user equipment may not select according to the transmit antenna indication information on any component carrier.
  • the user equipment may continue to wait for other transmit antenna indication information sent by the network side; or may separately select the transmit antenna corresponding to each component carrier, that is, select the same transmission by itself.
  • the antenna acts as a transmit antenna for use on different component carriers of the same subframe.
  • the network side may send, on each carrier, transmit antenna indication information for the carrier, for example, transmitting transmit antenna indication information for carrier A on carrier A, and transmitting transmit antenna indication information for carrier B on carrier B, correspondingly On which carrier the user equipment receives the transmit antenna indication information, it knows which carrier the transmit antenna indication information is for; the network side may also transmit the transmit antenna indication information of all carriers on one carrier, correspondingly, The user equipment ID identifies which carrier each transmit antenna indication information is for.
  • the open loop mode or the closed loop mode is used, and the network side can be configured by using RRC signaling, that is, the configuration information in the first mode is information indicating whether the open loop mode or the closed loop mode is used, and can be carried in the RRC signaling.
  • the embodiment of the present invention is not limited to the manner in which the configuration information is carried by the RRC signaling, and the other manners that can carry the configuration information are applicable to the embodiments of the present invention.
  • the network side can carry the transmit antenna indication information by using the downlink control information format DCI format 0; correspondingly, the user equipment can receive the transmit antenna indication information through the DCI format 0.
  • the user equipment uses the same transmit antenna to transmit the PUSCH on the corresponding UL CC in the same uplink subframe.
  • the embodiment of the present invention is not limited to the manner in which the configuration information is carried by the DCI format 0, and the other manners that can carry the indication information of the transmitting antenna are applicable to the embodiment of the present invention.
  • Method 2 The selection method of the transmitting antenna of the SRS.
  • the number of the transmitting antenna used by the user equipment to transmit the uplink signal on a certain UL CC is the last time (including the current subframe) in the specified UL CC.
  • the transmit antenna numbers used are the same.
  • step 202 when determining that the SRS needs to be sent, the user equipment selects a transmit antenna used on the specified component carrier according to the configuration information, and then the user equipment selects a transmit antenna used on other component carriers, and the selected other component carriers.
  • the number of the transmit antenna used is the same as the number of the last used transmit antenna on the specified member carrier. The last time here includes the current subframe.
  • the transmitting SRS here includes periodically transmitting SRS and aperiodic transmitting SRS.
  • the specified component carrier is a component carrier whose corresponding cell index number Cell Index is the smallest.
  • the user equipment has two transmit antennas, and the number is divided into other 0s and 1. If the SRS is periodically transmitted, multiple transmit antennas SRS are used in the set order, that is, transmit antenna 0, transmit antenna 1, and transmit antenna 0. Transmitting antenna 1, Transmitting antenna 0, ... and so on.
  • the order set in the implementation may also be that the transmitting antenna 1 is selected first, the transmitting antenna 0 is selected at the next transmission timing, and the transmitting antenna 1 is selected at the next transmission timing, and so on.
  • the specific order may be specified in the protocol, or the user equipment may be notified by the network side.
  • the transmit antenna selection mode of the PUSCH in case 1 and/or case 2 may also adopt the mode 2 in case 2; the transmit antenna selection mode of the SRS in case 1 and/or case 2 may also be used.
  • the second way of the second may also adopt the mode 2 in case 2; the transmit antenna selection mode of the SRS in case 1 and/or case 2 may also be used.
  • Case 1 can also use Mode 1 and/or Mode 2 in Case 2; Case 2 can also use Mode 1 and/or Mode 2 in Case 1.
  • the user equipment aggregates three UL CCs, where a, b, c, d, and e represent different PUSCH transmission subframes.
  • the user equipment transmits the PUSCH on each UL CC by using the same transmit antenna according to the transmit antenna indication information carried by the network side in DCI format 0.
  • AT0 in Fig. 7 denotes a transmitting antenna 0, and ATI denotes a transmitting antenna 1.
  • the antennas selected for the same subframe in different component carriers are the same.
  • the network side can indicate which antenna the user equipment uses based on the current network performance. Such as network load, network congestion and so on.
  • the user equipment aggregates three UL CCs, where m, n, o, p, q, r, s, and t represent different uplink subframes, and the base station configuration
  • the user equipment separately transmits the SRS on the three UL CCs, and the corresponding SRS period and the subframe position are different (here, the SRS is periodically transmitted).
  • the user equipment may perform alternate rotation of the SRS transmit antenna in the lowest UL CC of the Cell Index according to the manner specified by Rel-8/9.
  • the lowest UL CC of the Cell Index is used by the PLSE of the user equipment for transmitting the SRS on other UL CCs.
  • the number of the transmit antenna is always the same as the number of the transmit antenna used in the last time (including the current subframe) of the lowest UL CC of the Cell Index. Same.
  • AT0 in Fig. 8 denotes a transmitting antenna 0, and ATI denotes a transmitting antenna 1.
  • an embodiment of the present invention further provides a device for selecting a transmitting antenna and a system for selecting a transmitting antenna. Since the principles for solving the problem in these devices and systems are similar to the method for selecting a transmitting antenna in the embodiment of the present invention, these The implementation of the device and system can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the device for selecting a transmitting antenna is applied to carrier aggregation in the embodiment of the present invention, where the device has multiple transmitting antennas, including: a receiving module 100 and a selecting module 110.
  • the receiving module 100 is configured to receive configuration information on the network side.
  • the selecting module 110 is configured to select a transmitting antenna according to the received configuration information.
  • the determining module 110 selects a transmit antenna corresponding to each component carrier when determining that the PUSCH needs to be sent, and determines that the open loop mode needs to be used according to the received configuration information; and determines that the PUSCH needs to be sent, and according to the received
  • the configuration information determines that the closed antenna mode is needed, receives the transmit antenna indication information from the network side, and selects the transmit antenna corresponding to each component carrier according to the transmit antenna indication information.
  • the selection module 110 cyclically switches the plurality of transmit antennas SRS according to the set order corresponding to each component carrier according to the received configuration information, when determining that the sounding reference signal SRS needs to be transmitted.
  • the determining module 110 selects a transmit antenna corresponding to each component carrier when determining that the PUSCH needs to be sent, and determines that the open loop mode needs to be used according to the received configuration information; and determines that the PUSCH needs to be sent, and according to the received
  • the configuration information determines that the closed antenna mode is required, receives the transmit antenna indication information from the network side, and selects a transmit antenna for the current subframe according to the transmit antenna indication information.
  • the selection module 110 sends the PUSCH on the component carrier that needs to carry the current subframe in the component carrier group, and uses the transmit antenna selected for the current subframe to send the PUSCH, that is, the selection module 110 selects the same transmit antenna as the different member of the same subframe.
  • the transmit antenna used on the carrier Preferably, the selecting module 11 does not select according to the transmitting antenna indication information on any component carrier when the transmitting antenna indication information indicates that the transmitting antennas used on different component carriers of the same subframe are all different or partially identical.
  • the selection module 110 selects a transmit antenna used on the specified component carrier according to the configuration information; selects a transmit antenna used on other component carriers, and selects a transmit antenna used on other component carriers.
  • the number is the same as the number of the last used transmit antenna on the specified member carrier.
  • the specified component carrier is a component carrier with a minimum Cell Index.
  • the method for sending configuration information in the embodiment of the present invention includes the following steps:
  • Step 901 The network side determines configuration information.
  • Step 902 The network side sends the determined configuration information to the user terminal, where the user terminal is instructed to select the transmit antenna according to the configuration information.
  • the network side carries the transmit antenna indication information by using the DCI format 0 corresponding to each UL CC, and is used to indicate that the user equipment uses the same transmit antenna to send the PUSCH in the corresponding UL CC in the same uplink subframe.
  • the device for transmitting configuration information in the embodiment of the present invention includes: a determining module 1001 and a sending module 1002.
  • the determining module 1001 is configured to determine configuration information.
  • the sending module 1002 is configured to send configuration information determined by the determining module 1001 to the user terminal, to indicate that the user terminal selects the transmitting antenna according to the configuration information.
  • the sending module 1002 carries the transmitting antenna indication information by using the DCI format 0 corresponding to each uplink component carrier UL CC, and is used to indicate that the user equipment sends the corresponding UL CC in the same uplink subframe by using the same transmitting antenna. PUSCH.
  • the system for selecting a transmitting antenna according to an embodiment of the present invention is applied to carrier aggregation, and includes: a network side device 10 and a user equipment 20 having a plurality of transmitting antennas.
  • the network side device 10 is configured to send configuration information to the user equipment 20.
  • the user equipment 20 having a plurality of transmitting antennas is configured to select a transmitting antenna according to the received configuration information from the network side device 10.
  • the invention realizes that the user equipment can select the transmitting antenna in the carrier aggregation environment, so that the user equipment with multi-carrier transmitting capability and having the antenna selection function can normally use the antenna selection function in the carrier aggregation environment, thereby improving the transmission performance of the user equipment. And resource utilization.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer usable storage modules (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • computer usable storage modules including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the present invention is a flowchart and/or reference to a method, apparatus (system), and computer program product according to an embodiment of the present invention. Or a block diagram to describe. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Description

发送配置信息和选择发射天线的方法、 系统及设备 本申请要求在 2011年 5月 12日提交中国专利局、 申请号为 201110122324.9、 发明名称为"发 送配置信息和选择发射天线的方法、 系统及设备"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。 技术领域 本发明涉及无线通信技术领域, 特别涉及一种发送配置信息和选择发射天线的方法、 系 统及设备。 背景技术 在 LTE ( Long Term Evolution, 长期演进) 系统中, 有一种类型的 UE (用户设备 )具有 单一发射机通道, 但装备有两根发射天线。 这种类型的 UE通过选择 /切换发射上行信号所使 用的发射天线, 获得天线分集增益, 提高上行传输的性能。
该种类型的 UE的架构如图 1所示, 基带信号经过反快速傅里叶变换(IFFT)、 数模转换 ( DAC )、 载波调制和功放( PA )后联通至天线模块。 此类 UE装备有两根天线模块, 天线模 块与 PA之间通过开关连接,每根天线模块由射频滤波器( RF filter )和发射天线( Tx antenna ) 组成。 通过 PA与天线模块之间的开关, 选择相应的天线模块进行上行信号发射。
LTE Rel-8/9(版本 8/9 )中的 UE发射天线选择 /切换技术,具体包括 PUSCH( Physical Uplink Shared Channel, 物理上行共享信道)的发射天线选择和 SRS ( Sounding Reference Signal, 探 测参考信号)的发射天线切换。 UE的天线选择功能由基站通过 RRC ( Radio Resource Control, 无线资源控制)信令配置开启, 在配置之前 UE需要向基站上报是否具有发射天线选择的能 力。
在 LTE Rel-10(版本 10 )中引入了载波聚合技术, UE可以在多个 CC( Component Carrier, 成员载波)上接收或者发送数据, 以提升 UE的峰值速率和用户体验。 在载波聚合中, 每个 CC成为一个小区 (Cell ), 每个 CC具有一个小区索引号(Cell Index ) (取值为 0~7的整数)。 但是目前还没有一种对载波聚合情况下 UE如何选择发射天线的方案。
综上所述, 目前载波聚合情况下, 还没有一种 UE如何选择发射天线的方案。 发明内容 本发明实施例提供一种发送配置信息和选择发射天线的方法、 系统及设备, 用以实现在 载波聚合环境下 UE可以选择发射天线。
本发明实施例提供的一种选择发射天线的方法, 应用于载波聚合, 该方法包括: 有多根发射天线的用户设备接收网络侧的配置信息;
所述用户设备根据收到的配置信息, 选择发射天线。
较佳地, 所述用户设备选择发射天线包括:
所述用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式 时, 分别选择每个成员载波对应的发射天线;
所述用户设备在确定需要发送 PUSCH,且根据收到的配置信息确定需要釆用用闭环方式 时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息选择每个成员载波 对应的发射天线。
较佳地, 所述用户设备选择发射天线包括:
所述用户设备根据收到的配置信息,在确定需要发送探测参考信号 SRS 时,根据每个成 员载波对应的设定顺序, 循环切换使用多根发射天线 SRS。
较佳地, 所述用户设备选择发射天线包括:
所述用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式 时, 分别选择每个成员载波对应的发射天线;
所述用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用闭环方式 时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息, 为当前子帧选择 一根发射天线。
较佳地, 所述用户设备在成员载波组中需要承载当前子帧的成员载波上, 使用为当前子 帧选择的发射天线发送 PUSCH。
较佳地, 所述用户设备接收发射天线指示信息之前还包括:
所述网络侧通过每个上行链路成员载波 UL CC对应的 DCI format 0携带发射天线指示信 息, 用于指示用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
较佳地, 该方法还包括:
在所述发射天线指示信息指示选择的同一子帧的不同成员载波上使用的发射天线全不相 同或部分相同时, 所述用户设备在任一成员载波上不根据所述发射天线指示信息进行选择。
较佳地, 所述载波聚合是连续载波聚合;
所述用户设备选择发射天线包括:
所述用户设备在确定需要发送 SRS 时,根据所述配置信息选择在指定的成员载波上使用 的发射天线;
所述用户设备选择其他成员载波上使用的发射天线, 其中选择的其他成员载波上使用的 发射天线的编号与指定的成员载波上最近一次使用的发射天线的编号相同。
较佳地, 所述指定的成员载波是对应的小区索引号 Cell Index最小的成员载波。
较佳地, 所述载波聚合是非连续载波聚合或跨频段载波聚合或连续载波聚合。 本发明实施例提供的一种选择发射天线的设备, 应用于载波聚合, 该设备具有多根发射 天线, 该设备包括:
接收模块, 用于接收网络侧的配置信息;
选择模块, 用于根据收到的配置信息, 选择发射天线。
较佳地, 所述选择模块具体用于:
在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式时, 自身分别选 择每个成员载波对应的发射天线; 在确定需要发送 PUSCH, 且根据收到的配置信息确定需要 釆用用闭环方式时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息选 择每个成员载波对应的发射天线。
较佳地, 所述选择模块具体用于:
根据收到的配置信息,在确定需要发送探测参考信号 SRS 时,根据每个成员载波对应的 设定顺序, 循环切换使用多根发射天线 SRS。
较佳地, 所述选择模块具体用于:
在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式时, 自身分别选 择每个成员载波对应的发射天线; 在确定需要发送 PUSCH, 且根据收到的配置信息确定需要 釆用闭环方式时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息为当 前子帧选择一根发射天线。
较佳地, 所述选择模块还用于:
在成员载波组中需要承载当前子帧的成员载波上, 使用为当前子帧选择的发射天线发送 PUSCH。。
较佳地, 所述选择模块还用于:
在所述发射天线指示信息指示选择的同一子帧的不同成员载波上使用的发射天线全不相 同或部分相同时, 在任一成员载波上不根据所述发射天线指示信息进行选择。
较佳地, 所述选择模块具体用于:
在确定需要发送 SRS 时, 根据所述配置信息选择在指定的成员载波上使用的发射天线; 选择其他成员载波上使用的发射天线, 其中选择的其他成员载波上使用的发射天线的编号与 指定的成员载波上最近一次使用的发射天线的编号相同。
较佳地, 所述指定的成员载波是对应的 Cell Index最小的成员载波。
较佳地, 所述载波聚合是非连续载波聚合或跨频段载波聚合或连续载波聚合。
本发明实施例提供的一种发送配置信息的方法, 应用于载波聚合, 该方法包括: 网络侧确定配置信息;
所述网络侧向用户终端发送确定的配置信息, 用于指示用户终端根据配置信息选择发射 天线。 较佳地, 所述网络侧发送确定的配置信息包括:
所述网络侧通过每个上行链路成员载波 UL CC对应的下行控制信息格式 DCI format 0携 带发射天线指示信息,用于指示用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
本发明实施例提供的一种发送配置信息的设备, 应用于载波聚合, 该设备包括: 确定模块, 用于确定配置信息;
发送模块, 用于向用户终端发送确定的配置信息, 用于指示用户终端才 居配置信息选择 发射天线。
较佳地, 所述发送模块具体用于:
通过每个 UL CC对应的 DCI format 0携带发射天线指示信息, 用于指示用户设备使用相 同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
本发明实施例提供的一种选择发射天线的系统, 应用于载波聚合, 该系统包括: 网络侧设备 , 用于发送配置信息;
有多根发射天线的用户设备, 用于根据收到的配置信息, 选择发射天线。
本发明实现了在载波聚合环境下用户设备可以选择发射天线, 使得具有多载波发送能力 且具有天线选择功能的用户设备能够在载波聚合环境下正常的使用天线选择功能, 提高了用 户设备的传输性能和资源利用率。 附图说明 图 1为现有技术中具有天线选择能力的 UE结构示意图;
图 2为本发明实施例选择发射天线的方法流程示意图;
图 3为本发明实施例选择发射天线的设备结构示意图;
图 4为本发明实施例选择发射天线的系统结构示意图;
图 5为连续载波聚合的 UE结构示意图;
图 6为非连续 (或跨频段)载波聚合的 UE结构示意图;
图 7为本发明实施例基于 PUSCH的发射天线选择示意图;
图 8为本发明实施例基于 SRS的发射天线选择示意图;
图 9为本发明实施例发送配置信息的方法流程示意图;
图 10为本发明实施例发送配置信息的设备结构示意图。 具体实施方式 本发明实施例中,有多根发射天线的用户设备在载波聚合环境下,根据收到的配置信息, 选择发射天线。 本发明实现在载波聚合环境下 UE可以选择发射天线, 使得具有多载波发送 能力且具有天线选择功能的 UE能够在载波聚合环境下正常的使用天线选择功能, 从而提高 UE的传输性能和资源利用率。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 2所示, 本发明实施例选择发射天线的方法包括下列步骤:
步骤 201、 有多根发射天线的用户设备接收网络侧的配置信息。
步骤 202、 该用户设备根据收到的配置信息, 选择发射天线。
其中, 载波聚合中的各个成员载波 CC可以是频率上连续的, 例如连续 5个 20MHz载波 构成 100MHz带宽的载波聚合; 载波聚合中的各个成员载波也可以是频率上不连续, 甚至在 不同的频段(band )上。 图 5中给出一种支持连续载波聚合的 UE架构, 其中 UE仅装备了一 个功放 PA, 用于对两个 CC的发射信号进行放大。 图 6给出了一种支持非连续 (或跨频段) 载波聚合的 UE架构, 其中 UE装备了两个 PA, 每个 PA用于一个 CC的发射信号放大, 此时 两个 CC具有各自独立的发射通道。
由于非连续或跨频段载波聚合, 与连续段载波聚合的 UE结构不同, 相应的在选择发射 天线时也会有所不同, 下面分情况进行说明。
情况一、 载波聚合是非连续或跨频段载波聚合。 针对情况一又可以包括 PUSCH的发射 天线选择方式和 SRS的发射天线选择方式。
对于非连续或跨频段载波聚合, 由于用户设备在每个 CC上具有独立的发射通道(参见 图 6 ), 因此每个 CC可以独立的进行发射天线选择。
方式一、 PUSCH的发射天线选择方式。
具体的, 步骤 202中, 用户设备在需要发送 PUSCH (即通过 PUSCH发送信息, 下同), 且根据收到的配置信息确定需要釆用开环方式时, 分别选择每个成员载波对应的发射天线, 即用户设备这时可以自己分别选择在每个成员载波中发送 PUSCH的子帧上釆用哪根天线发 送 PUSCH0
步骤 202中, 用户设备在需要发送 PUSCH, 且根据收到的配置信息确定需要釆用闭环方 式时, 接收来自网络侧的发射天线指示信息(该信息用于通知终端选择哪根发射天线), 并根 据发射天线指示信息选择每个成员载波对应的发射天线, 即用户设备这时根据发射天线指示 信息分别选择在每个成员载波中发送 PUSCH的子帧上釆用哪根天线发送 PUSCH。
在实施中, 网络侧可以在每个载波上发送针对该载波的发射天线指示信息, 比如载波 A 上发送针对载波 A的发射天线指示信息, 载波 B上发送针对载波 B的发射天线指示信息,相 应的, 用户设备在哪个载波上收到发射天线指示信息, 就知道该发射天线指示信息针对的是 哪个载波的; 网络侧也可以将所有载波的发射天线指示信息在一个载波上发送, 相应的, 用 户设备分别 居标识符确定每个发射天线指示信息针对哪个载波的。
具体釆用开环方式还是闭环方式, 网络侧可以通过 RRC信令进行配置, 即方式一中的配 置信息是指示釆用开环方式还是闭环方式的信息, 并且可以携带在 RRC信令中。 需要说明的是, 本发明实施例并不局限于通过 RRC信令携带配置信息的方式, 其他能够 携带配置信息的方式都适用本发明实施例。
较佳地, 网络侧可以通过 DCI format (下行控制信息格式) 0携带发射天线指示信息; 相 应的, 用户设备可以通过 DCI format 0接收发射天线指示信息。
需要说明的是, 本发明实施例并不局限于通过 DCI format 0携带配置信息的方式, 其他 能够携带发射天线指示信息的方式都适用本发明实施例。
方式二、 SRS的发射天线选择方式。
具体的, 步骤 202中, 用户设备根据收到的配置信息, 在确定需要发送 SRS 时, 根据每 个成员载波对应的设定顺序,循环切换使用多根发射天线 SRS, 即用户设备分别针对每个 CC 独立进行 SRS天线切换。
这里的发送 SRS包含周期性发送 SRS以及非周期性发送 SRS。
比如用户设备有两根发射天线, 编号分为别 0和 1 , 如果周期性发送 SRS, 则按照设定 的顺序循环使用多根发射天线 SRS, 即发射天线 0, 发射天线 1 , 发射天线 0, 发射天线 1 , 发射天线 0, ... ...以次类推。
当然, 在实施中设定的顺序也可以是先选择发射天线 1 , 在下一个发送时刻选择发射天 线 0, 在下一个发送时刻选择发射天线 1 以次类推。
具体顺序可以在协议中规定, 也可以由网络侧通知用户设备。
情况二、 载波聚合是连续载波聚合。 针对情况二又可以包括 PUSCH的发射天线选择方 式和 SRS的发射天线选择方式。
方式一、 PUSCH的发射天线选择方式。
具体的, 步骤 202中, 用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需 要釆用开环方式时, 分别选择每个成员载波对应的发射天线, 即用户设备这时可以自己分别 选择在每个成员载波中发送 PUSCH的子帧上釆用哪根天线发送 PUSCH;
步骤 202中, 用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用闭 环方式时, 接收来自网络侧的发射天线指示信息, 并根据发射天线指示信息, 为当前子帧选 择一根发射天线。
然后, 用户设备在成员载波组中需要承载当前子帧的成员载波上使用为当前子帧选择的 发射天线发送 PUSCH。即用户设备选择相同的发射天线作为同一子帧的不同成员载波上使用 的发射天线。
也就是说, UE在每个上行链路成员载波 UL CC上按照发射天线指示信息使用相应的发 射天线发射 PUSCH。 并且, 网络侧应当调度 UE在同一子帧上不同 UL CC使用相同的发射 天线, UE不期望在同一子帧上接收到网络侧发送的对应不同 UL CC的发射天线指示信息指 示使用不同的发射天线, 如果网络侧发生了这种调度, 用户设备可以不响应该类调度。 具体的, 在发射天线指示信息指示选择的同一子帧的不同成员载波上使用的发射天线全 不相同或部分相同时, 用户设备在任一成员载波上可以不根据发射天线指示信息进行选择。
如果用户设备不根据上述发射天线指示信息进行选择, 则随后用户设备可以继续等待网 络侧发送的其它发射天线指示信息; 也可以自己分别选择每个成员载波对应的发射天线, 即 自己选择相同的发射天线作为同一子帧的不同成员载波上使用的发射天线。
在实施中, 网络侧可以在每个载波上发送针对该载波的发射天线指示信息, 比如载波 A 上发送针对载波 A的发射天线指示信息, 载波 B上发送针对载波 B的发射天线指示信息,相 应的, 用户设备在哪个载波上收到发射天线指示信息, 就知道该发射天线指示信息针对的是 哪个载波的; 网络侧也可以将所有载波的发射天线指示信息在一个载波上发送, 相应的, 用 户设备才 居标识符分别确定每个发射天线指示信息针对哪个载波的。
具体釆用开环方式还是闭环方式, 网络侧可以通过 RRC信令进行配置, 即方式一中的配 置信息是指示釆用开环方式还是闭环方式的信息, 并且可以携带在 RRC信令中。
需要说明的是, 本发明实施例并不局限于通过 RRC信令携带配置信息的方式, 其他能够 携带配置信息的方式都适用本发明实施例。
较佳地, 网络侧可以通过下行控制信息格式 DCI format 0携带发射天线指示信息; 相应 的, 用户设备可以通过 DCI format 0接收发射天线指示信息。 用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC上发送 PUSCH。
需要说明的是, 本发明实施例并不局限于通过 DCI format 0携带配置信息的方式, 其他 能够携带发射天线指示信息的方式都适用本发明实施例。
方式二、 SRS的发射天线选择方式。
对于连续载波聚合, 由于用户设备在多个 CC上共用发射通道, 用户设备在某一 UL CC 上发射上行信号所使用的发射天线的编号与其在指定的 UL CC中最近一次 (包括当前子帧)所 使用的发射天线编号相同。
具体的, 步骤 202中, 用户设备在确定需要发送 SRS 时, 根据配置信息选择在指定的成 员载波上使用的发射天线, 然后用户设备选择其他成员载波上使用的发射天线, 其中选择的 其他成员载波上使用的发射天线的编号与指定的成员载波上最近一次使用的发射天线的编号 相同。 这里的最近一次包括当前子帧。
这里的发送 SRS包含周期性发送 SRS以及非周期性发送 SRS。
较佳地, 指定的成员载波是对应的小区索引号 Cell Index最小的成员载波。
比如用户设备有两根发射天线, 编号分为别 0和 1 , 如果周期性发送 SRS, 则按照设定 的顺序循环使用多根发射天线 SRS, 即发射天线 0, 发射天线 1 , 发射天线 0, 发射天线 1 , 发射天线 0, ... ...以次类推。
当然, 在实施中设定的顺序也可以是先选择发射天线 1 , 在下一个发送时刻选择发射天 线 0, 在下一个发送时刻选择发射天线 1 以次类推。
具体顺序可以在协议中规定, 也可以由网络侧通知用户设备。
在实施中, 情况一和 /或情况二中的 PUSCH 的发射天线选择方式也可以釆用情况二中 的方式二;情况一和 /或情况二中的 SRS的发射天线选择方式也可以釆用情况二中的方式一。
在实施中, 情况一也可以釆用情况二中的方式一和 /或方式二; 情况二也可以釆用情况一 中的方式一和 /或方式二。
下面分别举两个例子对情况二进行详细说明。
如图 7所示, PUSCH的闭环天线选择示意图中, 以用户设备聚合了 3个 UL CC为例, 其中 a、 b、 c、 d和 e表示不同的 PUSCH传输子帧。 在每个上行子帧中用户设备根据网络侧 在 DCI format 0 中携带的发射天线指示信息, 使用相同的发射天线在各个 UL CC 上发射 PUSCH。
图 7中的 AT0表示发射天线 0, ATI表示发射天线 1。
用户设备根据发射天线指示信息确定 Cell Index = 0对应的 CC、 Cell Index = 1对应的 CC 和 Cell Index = 2对应的 CC中的传输子帧 a上选择 AT0;
用户设备根据发射天线指示信息确定 Cell Index = 0对应的 CC和 Cell Index = 2对应的 CC 中的传输子帧 b上选择 ATI;
用户设备根据发射天线指示信息确定 Cell Index = 0对应的 CC、 Cell Index = 1对应的 CC 和 Cell Index = 2对应的 CC中的传输子帧 c上选择 ATI;
用户设备根据发射天线指示信息确定 Cell Index = 1对应的 CC和 Cell Index = 2对应的 CC 中的传输子帧 d上选择 ATI;
用户设备根据发射天线指示信息确定 Cell Index = 0对应的 CC、 Cell Index = 1对应的 CC 和 Cell Index = 2对应的 CC中的传输子帧 e上选择 AT0。
即不同成员载波中针对同一子帧选择的天线都相同。
网络侧可以根据当前网络性能指示用户设备釆用哪根天线。 比如网络负载、 网络拥塞程 度等。
如图 8所示, SRS的天线切换示意图中, 以用户设备聚合了 3个 UL CC为例, 其中 m、 n、 o、 p、 q、 r、 s和 t表示不同的上行子帧, 基站配置了用户设备在 3个 UL CC上分别发送 SRS,且相应的 SRS周期和子帧位置各不相同(这里以周期性发送 SRS为例)。用户设备在 Cell Index最低的 UL CC中可以按照 Rel-8/9规定的方式进行 SRS发射天线交替轮换,这里该 Cell Index最低的 UL CC为该用户设备的 PcelL 其他 UL CC上发送 SRS所使用的发射天线的编 号总是与 Cell Index最低的 UL CC在最近一次(包含当前子帧)中所使用的发射天线的编号相 同。
图 8中的 AT0表示发射天线 0, ATI表示发射天线 1。
用户设备按照 Rel-8/9规定的方式在 Cell Index = 0对应的 CC的传输子帧 m上选择 AT0、 传输子帧 0上选择 ATI、 传输子帧 q上选择 AT0、 传输子帧 s上选择 ATI。
相应的, 在 Cell Index = 1对应的 CC的传输子帧 n上选择 AT0 (与 Cell Index = 0对应的 CC的传输子帧 m相同, 即与前一子帧相同)、 传输子帧 p上选择 ATI (与 Cell Index = 0对应 的 CC的传输子帧 o相同, 即与前一子帧相同)、 传输子帧 r上选择 AT0 (与 Cell Index = 0对 应的 CC的传输子帧 q相同, 即与前一子帧相同)、 传输子帧 s上选择 ATI (与 Cell Index = 0 对应的 CC的传输子帧 s相同, 即与当前子帧相同);
在 Cell Index = 2对应的 CC的传输子帧 m上选择 AT0 (与 Cell Index = 0对应的 CC的传 输子帧 m相同, 即与当前子帧相同)、 传输子帧 p上选择 ATI (与 Cell Index = 0对应的 CC 的传输子帧 o相同, 即与前一子帧相同)、 传输子帧 s上选择 ATI (与 Cell Index = 0对应的 CC的传输子帧 s相同, 即与当前子帧相同)。
基于同一发明构思, 本发明实施例中还提供了一种选择发射天线的设备及选择发射天线 的系统, 由于这些设备和系统解决问题的原理与本发明实施例选择发射天线的方法相似, 因 此这些设备和系统的实施可以参见方法的实施, 重复之处不再赘述。
如图 3所示, 本发明实施例选择发射天线的设备, 应用于载波聚合, 其中该设备具有多 根发射天线, 包括: 接收模块 100和选择模块 110。
接收模块 100 , 用于接收网络侧的配置信息;
选择模块 110, 用于根据收到的配置信息, 选择发射天线。
较佳地, 选择模块 110在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开 环方式时, 分别选择每个成员载波对应的发射天线; 在确定需要发送 PUSCH, 且根据收到的 配置信息确定需要釆用用闭环方式时, 接收来自网络侧的发射天线指示信息, 并根据发射天 线指示信息选择每个成员载波对应的发射天线。
较佳地, 选择模块 110根据收到的配置信息, 在确定需要发送探测参考信号 SRS 时, 根 据每个成员载波对应的设定顺序, 循环切换使用多根发射天线 SRS。
较佳地, 选择模块 110在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开 环方式时, 分别选择每个成员载波对应的发射天线; 在确定需要发送 PUSCH, 且根据收到的 配置信息确定需要釆用闭环方式时, 接收来自网络侧的发射天线指示信息, 并根据发射天线 指示信息为当前子帧选择一根发射天线。
较佳地, 选择模块 110在成员载波组中需要承载当前子帧的成员载波上, 使用为当前子 帧选择的发射天线发送 PUSCH,即选择模块 110选择相同的发射天线作为同一子帧的不同成 员载波上使用的发射天线。 较佳地, 选择模块 11 ο在发射天线指示信息指示选择的同一子帧的不同成员载波上使用 的发射天线全不相同或部分相同时, 在任一成员载波上不根据发射天线指示信息进行选择。
较佳地, 选择模块 110在确定需要发送 SRS 时,根据配置信息选择在指定的成员载波上 使用的发射天线; 选择其他成员载波上使用的发射天线, 其中选择的其他成员载波上使用的 发射天线的编号与指定的成员载波上最近一次使用的发射天线的编号相同。
较佳地, 所述指定的成员载波是对应的 Cell Index最小的成员载波。
如图 9所示, 本发明实施例发送配置信息的方法包括下列步骤:
步骤 901、 网络侧确定配置信息。
步骤 902、 网络侧向用户终端发送确定的配置信息, 用于指示用户终端根据配置信息选 择发射天线。
较佳地, 步骤 902中, 网络侧通过每个 UL CC对应的 DCI format 0携带发射天线指示信 息, 用于指示用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
如图 10所示,本发明实施例发送配置信息的设备包括:确定模块 1001和发送模块 1002。 确定模块 1001 , 用于确定配置信息。
发送模块 1002, 用于向用户终端发送确定模块 1001确定的配置信息, 用于指示用户终 端根据配置信息选择发射天线。
较佳地, 发送模块 1002通过每个上行链路成员载波 UL CC对应的 DCI format 0携带发 射天线指示信息, 用于指示用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC 发送 PUSCH。
如图 4所示, 本发明实施例选择发射天线的系统, 应用于载波聚合, 包括: 网络侧设备 10和有多根发射天线的用户设备 20。
网络侧设备 10, 用于向用户设备 20发送配置信息。
有多根发射天线的用户设备 20, 用于根据收到的来自网络侧设备 10的配置信息, 选择 发射天线。
本发明实现了在载波聚合环境下用户设备可以选择发射天线, 使得具有多载波发送能力 且具有天线选择功能的用户设备能够在载波聚合环境下正常的使用天线选择功能, 从而提高 用户设备的传输性能和资源利用率。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的 形式。 而且, 本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机可用存储 介盾 (包括但不限于磁盘存储器、 CD-ROM、 光学存储器等)上实施的计算机程序产品的形 式。
本发明是参照根据本发明实施例的方法、设备(系统)、 和计算机程序产品的流程图和 / 或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流程和 / 或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机程序指令 到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个 机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程 图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工 作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装置的制 造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指 定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机或 其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他可编 程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多 个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选实施例 以及落入本发明范围的所有变更和修改。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范 围。 这样, 倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则 本发明也意图包含这些改动和变型在内。

Claims

1、 一种选择发射天线的方法, 应用于载波聚合, 其特征在于, 该方法包括: 有多根发射天线的用户设备接收网络侧的配置信息;
所述用户设备根据收到的配置信息, 选择发射天线。
2、 如权利要求 1所述的方法, 其特征在于, 所述用户设备选择发射天线包括: 所述用户设备在确定需要发送物理上行共享信道 PUSCH,且根据收到的配置信息确定需 要釆用开环方式时, 分别选择每个成员载波对应的发射天线;
所述用户设备在确定需要发送 PUSCH,且根据收到的配置信息确定需要釆用用闭环方式 时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息选择每个成员载波 对应的发射天线。
3、 如权利要求 1所述的方法, 其特征在于, 所述用户设备选择发射天线包括: 所述用户设备根据收到的配置信息,在确定需要发送探测参考信号 SRS 时,根据每个成 员载波对应的设定顺序, 循环切换使用多根发射天线 SRS。
4、 如权利要求 1所述的方法, 其特征在于, 所述用户设备选择发射天线包括: 所述用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式 时, 分别选择每个成员载波对应的发射天线;
所述用户设备在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用闭环方式 时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息, 为当前子帧选择 一根发射天线。
5、 如权利要求 4所述的方法, 其特征在于, 所述用户设备在成员载波组中需要承载当前 子帧的成员载波上, 使用为当前子帧选择的发射天线发送 PUSCH。
6、 如权利要求 4所述的方法, 其特征在于, 所述用户设备接收发射天线指示信息之前还 包括:
所述网络侧通过每个上行链路成员载波 UL CC对应的下行控制信息格式 DCI format 0携 带发射天线指示信息,用于指示用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
7、 如权利要求 4所述的方法, 其特征在于, 该方法还包括:
在所述发射天线指示信息指示选择的同一子帧的不同成员载波上使用的发射天线全不相 同或部分相同时, 所述用户设备在任一成员载波上不根据所述发射天线指示信息进行选择。
8、 如权利要求 1所述的方法, 其特征在于, 所述载波聚合是连续载波聚合;
所述用户设备选择发射天线包括:
所述用户设备在确定需要发送 SRS 时,根据所述配置信息选择在指定的成员载波上使用 的发射天线; 所述用户设备选择其他成员载波上使用的发射天线, 其中选择的其他成员载波上使用的 发射天线的编号与指定的成员载波上最近一次使用的发射天线的编号相同。
9、 如权利要求 8 所述的方法, 其特征在于, 所述指定的成员载波是对应的小区索引号 Cell Index最小的成员载波。
10、 如权利要求 1~9任一所述的方法, 其特征在于, 所述载波聚合是非连续载波聚合或 跨频段载波聚合或连续载波聚合。
11、 一种选择发射天线的设备, 应用于载波聚合, 该设备具有多根发射天线, 其特征在 于, 该设备包括:
接收模块, 用于接收网络侧的配置信息;
选择模块, 用于根据收到的配置信息, 选择发射天线。
12、 如权利要求 11所述的设备, 其特征在于, 所述选择模块具体用于:
在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式时, 分别选择每 个成员载波对应的发射天线; 在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用 用闭环方式时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息选择每 个成员载波对应的发射天线。
13、 如权利要求 11所述的设备, 其特征在于, 所述选择模块具体用于:
根据收到的配置信息,在确定需要发送探测参考信号 SRS 时,根据每个成员载波对应的 设定顺序, 循环切换使用多根发射天线 SRS。
14、 如权利要求 11所述的设备, 其特征在于, 所述选择模块具体用于:
在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用开环方式时, 分别选择每 个成员载波对应的发射天线; 在确定需要发送 PUSCH, 且根据收到的配置信息确定需要釆用 闭环方式时, 接收来自网络侧的发射天线指示信息, 并根据所述发射天线指示信息, 为当前 子帧选择一根发射天线。
15、 如权利要求 14所述的设备, 其特征在于, 所述选择模块还用于:
在成员载波组中需要承载当前子帧的成员载波上, 使用为当前子帧选择的发射天线发送 PUSCH。
16、 如权利要求 14所述的设备, 其特征在于, 所述选择模块还用于:
在所述发射天线指示信息指示选择的同一子帧的不同成员载波上使用的发射天线全不相 同或部分相同时, 在任一成员载波上不根据所述发射天线指示信息进行选择。
17、 如权利要求 11所述的设备, 其特征在于, 所述选择模块具体用于:
在确定需要发送 SRS 时, 根据所述配置信息选择在指定的成员载波上使用的发射天线; 选择其他成员载波上使用的发射天线, 其中选择的其他成员载波上使用的发射天线的编号与 指定的成员载波上最近一次使用的发射天线的编号相同。
18、 如权利要求 17所述的设备, 其特征在于, 所述指定的成员载波是对应的 Cell Index 最小的成员载波。
19、 如权利要求 11~18任一所述的设备, 其特征在于, 所述载波聚合是非连续载波聚合 或跨频段载波聚合或连续载波聚合。
20、 一种发送配置信息的方法, 应用于载波聚合, 其特征在于, 该方法包括: 网络侧确定配置信息;
所述网络侧向用户终端发送确定的配置信息, 用于指示用户终端根据所述配置信息选择 发射天线。
21、 如权利要求 20所述的方法, 其特征在于, 所述网络侧发送确定的配置信息包括: 所述网络侧通过每个上行链路成员载波 UL CC对应的下行控制信息格式 DCI format 0携 带发射天线指示信息,用于指示用户设备使用相同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
22、 一种发送配置信息的设备, 应用于载波聚合, 其特征在于, 该设备包括: 确定模块, 用于确定配置信息;
发送模块, 用于向用户终端发送确定的配置信息, 用于指示用户终端才 居所述配置信息 选择发射天线。
23、 如权利要求 22所述的设备, 其特征在于, 所述发送模块具体用于:
通过每个 UL CC对应的 DCI format 0携带发射天线指示信息, 用于指示用户设备使用相 同的发射天线在同一个上行子帧中相应的 UL CC发送 PUSCH。
24、 一种选择发射天线的系统, 其特征在于, 该系统包括:
网络侧设备 , 用于发送配置信息;
有多根发射天线的用户设备, 用于根据收到的配置信息, 选择发射天线。
PCT/CN2012/073156 2011-05-12 2012-03-27 发送配置信息和选择发射天线的方法、系统及设备 WO2012152146A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161419A1 (zh) * 2013-08-29 2014-10-09 中兴通讯股份有限公司 一种处理载波聚合干扰的方法及终端

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102185642B (zh) * 2011-05-12 2014-10-15 电信科学技术研究院 发送配置信息和选择发射天线的方法、系统及设备
US8855576B2 (en) 2011-09-27 2014-10-07 Thomson Licensing Apparatus and method for setting the operation of an antenna
CN103905104B (zh) 2012-12-28 2017-12-19 中兴通讯股份有限公司 一种根据探测参考信号的多天线发送方法及终端及基站
US20180263029A1 (en) * 2016-02-04 2018-09-13 Huawei Technologies Co., Ltd. Method For Transmitting PUSCH In LAA-LTE System And User Equipment
US10735156B2 (en) * 2016-03-24 2020-08-04 Qualcomm Incorporated Sounding reference signal transmission for enhanced carrier aggregation
WO2018018603A1 (zh) * 2016-07-29 2018-02-01 华为技术有限公司 用户设备ue和信道质量测量方法
CN110071749B (zh) * 2018-01-22 2021-08-31 华为技术有限公司 一种天线选择指示方法、装置和系统
WO2019183960A1 (zh) * 2018-03-30 2019-10-03 华为技术有限公司 天线选择的方法及相关装置
CN111586874B (zh) * 2019-02-15 2022-11-25 华为技术有限公司 一种天线参数调整的方法以及相关装置
CN118077152A (zh) * 2021-10-14 2024-05-24 高通股份有限公司 Ue对合适srs配置的报告

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101610607A (zh) * 2008-06-20 2009-12-23 大唐移动通信设备有限公司 上行探测参考信号发送、接收方法以及基站和移动终端
WO2010079162A1 (en) * 2009-01-06 2010-07-15 Nokia Siemens Networks Oy Single user multiple input multiple output user equipment
CN101888624A (zh) * 2010-06-11 2010-11-17 中兴通讯股份有限公司 发射天线选择的配置方法及装置
CN102185642A (zh) * 2011-05-12 2011-09-14 电信科学技术研究院 发送配置信息和选择发射天线的方法、系统及设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101715211A (zh) * 2009-11-02 2010-05-26 中兴通讯股份有限公司 传输模式的设置方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101610607A (zh) * 2008-06-20 2009-12-23 大唐移动通信设备有限公司 上行探测参考信号发送、接收方法以及基站和移动终端
WO2010079162A1 (en) * 2009-01-06 2010-07-15 Nokia Siemens Networks Oy Single user multiple input multiple output user equipment
CN101888624A (zh) * 2010-06-11 2010-11-17 中兴通讯股份有限公司 发射天线选择的配置方法及装置
CN102185642A (zh) * 2011-05-12 2011-09-14 电信科学技术研究院 发送配置信息和选择发射天线的方法、系统及设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014161419A1 (zh) * 2013-08-29 2014-10-09 中兴通讯股份有限公司 一种处理载波聚合干扰的方法及终端

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