WO2019183960A1 - 天线选择的方法及相关装置 - Google Patents

天线选择的方法及相关装置 Download PDF

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Publication number
WO2019183960A1
WO2019183960A1 PCT/CN2018/081449 CN2018081449W WO2019183960A1 WO 2019183960 A1 WO2019183960 A1 WO 2019183960A1 CN 2018081449 W CN2018081449 W CN 2018081449W WO 2019183960 A1 WO2019183960 A1 WO 2019183960A1
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WO
WIPO (PCT)
Prior art keywords
antenna
terminal device
dci
indication information
antennas
Prior art date
Application number
PCT/CN2018/081449
Other languages
English (en)
French (fr)
Inventor
窦圣跃
祝慧颖
纪刘榴
李元杰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18911401.0A priority Critical patent/EP3761521A4/en
Priority to PCT/CN2018/081449 priority patent/WO2019183960A1/zh
Priority to CN201880091224.4A priority patent/CN111869122B/zh
Publication of WO2019183960A1 publication Critical patent/WO2019183960A1/zh
Priority to US17/037,414 priority patent/US20210013947A1/en

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    • 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
    • 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
    • H04B7/0602Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608Antenna selection according to transmission parameters
    • H04B7/061Antenna selection according to transmission parameters using feedback from receiving side
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0628Diversity capabilities

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for selecting an antenna.
  • an antenna can be used for data transmission between a terminal device and a network device.
  • the terminal device can be configured with one or more antenna radio frequency (RF) chains, wherein one RF chain can correspond to two physical antennas.
  • the two physical antennas can serve as the receiving antenna for receiving data, that is, the two physical antennas of the terminal device can be mapped to the logical receiving antenna of 2R (R represents receive).
  • R represents receive
  • the terminal device needs to select one of the two physical antennas to map the physical antenna to 1T (T indicates transmit, transmit) logic. Send the antenna.
  • T indicates transmit, transmit
  • the terminal device UE needs to select one physical antenna from the two physical antennas configured as the transmitting antenna to transmit information when transmitting the information to the network device.
  • the UE when the UE is configured with four or more physical antennas, the UE can support 1T4R or 2T4R or 1T8R, etc., but the prior art only supports the transmit antenna selection of uplink transmission of 1T2R.
  • the prior art cannot support the transmit antenna selection of uplink data transmission of more antennas such as UE 1T4R or 2T4R or 1T8R.
  • the SINR of different receiving antennas is also different due to the difference in signal to inference plus noise ratio (SINR) between different transmitting antennas of the UE.
  • SINR signal to inference plus noise ratio
  • the prior art cannot support UEs configured with multiple transmitting and receiving antennas. The transmit antenna selection of the uplink data transmission, and thus the channel difference between different antennas cannot be used to obtain the diversity gain, and the performance loss is large.
  • the present invention provides a method for selecting an antenna and a related device, which can support the selection of a transmitting antenna of a terminal device having multiple transmitting and receiving antennas, can improve the communication quality between the terminal device and the network device, and enhance the reliability of the data transmission of the terminal device. More sexual.
  • a method for antenna selection is applicable to a terminal device side.
  • the method includes: receiving downlink control information DCI from a network device, and acquiring antenna selection indication information corresponding to the DCI, where the antenna selection indication information is used to indicate one or more first antennas of at least three antennas of the terminal device.
  • the first antenna may represent a physical antenna for uplink transmission, in other words, the first antenna is an antenna in which the terminal device transmits uplink information to the network device.
  • the terminal device may send information to the network device by one or more first antennas indicated by the antenna selection indication information.
  • the terminal device may receive the DCI from the network device, determine one or more antennas for uplink transmission according to the antenna selection indication information corresponding to the DCI, and implement three or more antennas provided by the terminal device.
  • One or more antennas are selected for the antenna selection of the uplink transmission, and then the diversity difference between the different antennas can be used to obtain the diversity gain, which can improve the communication quality between the terminal device and the network device, and enhance the reliability of the data transmission of the terminal device.
  • the antenna selection indication information corresponding to the DCI is characterized by one or more of the following: bit information included in the DCI, a cyclic redundancy check CRC mask of the DCI, And the identification information of the time domain occupied by the DCI.
  • bit information included in the DCI may be a bit value of a specific bit (or a designated bit) in the DCI.
  • the CRC mask of the DCI is a mask used to scramble the CRC of the DCI.
  • the identification information of the time domain occupied by the DCI may be the identification information of the subframe and/or the time slot carrying the DCI, such as the parity of the subframe and/or the time slot carrying the DCI.
  • the antenna selection indication information corresponding to the DCI may be characterized by any one of the foregoing, or may be a combination of any multiple of the foregoing.
  • the antenna selection indication information corresponding to the DCI may be bit information included in the DCI and DCI.
  • the CRC mask, etc. is not limited here.
  • the antenna selection indication information corresponding to the DCI can be characterized by multiple representation forms, and the implementation manner is diverse, the operation is flexible, and the applicable scope is larger.
  • the bit information included in the DCI may be a bit value corresponding to one or more first antennas used for uplink transmission.
  • the indication information (or bit value) of a specific bit in the DCI can be used to represent the antenna selection indication information corresponding to the DCI, and the different values of the specific bits in the DCI can be used as an antenna indicating different one or more physical antennas. Select the indication information.
  • the correspondence between the indication information of a specific bit in the DCI and the physical antenna port of one or more first antennas (ie, one or more physical antennas) for uplink transmission may be specified by a communication protocol, or may be configured by a network device.
  • the CRC mask of the DCI is a mask corresponding to one or more of the first antennas for uplink transmission.
  • one or more first antennas for uplink transmission may correspond to one or more masks, and the CRC of the DCI is scrambled by the mask, and then the scrambled DCI is sent to the terminal device.
  • the corresponding antenna selection indication information in the scrambled DCI is a mask corresponding to the one or more first antennas, and the terminal device can obtain multiple physicals through the mask corresponding to each physical antenna in the scrambled DCI.
  • One or more first antennas for uplink transmission are determined in the antenna, and information can be sent to the network device through the first antenna.
  • a set of masks may correspond to a physical antenna port indicating a physical antenna.
  • the correspondence between the antenna selection mask and the physical antenna port selected by the transmitting antenna may be specified by a communication protocol or may be configured by a network device.
  • the time domain identification information occupied by the DCI satisfies the time domain identification information corresponding to the one or more first antennas used for uplink transmission.
  • the identification information of the time domain occupied by the DCI is the parity number of the subframe in which the DCI transmitted by the network device to the terminal device and/or the parity number of the time slot in which the DCI is located.
  • the parity number of the subframe in which the DCI is located and/or the parity number of the time slot in which the DCI is located may be used together with the CRC mask of the DCI and/or the bit information of the specific bit in the DCI to represent the antenna selection indication information to indicate to the terminal device One or more first antennas transmitted upstream.
  • the antenna selection indication information co-characterized by the subframe parity number (and/or slot parity number) in which the DCI is located and the CRC mask of the DCI (and/or bit information of a specific bit in the DCI) and one or more of the terminal devices
  • the correspondence of the first antenna of the root may be specified by a communication protocol, or may be configured by a network device.
  • one or more first antennas for uplink transmission may be indicated by bit information of a specific bit included in the DCI, wherein different values of specific bits in the DCI may indicate different physical antennas.
  • one or more first antennas for uplink transmission may be indicated by a CRC mask of the DCI, and different masks may correspond to different physical antennas.
  • the one or more first antennas used for uplink transmission may be jointly indicated by the indication information of the specific bit in the DCI and the CRC mask of the DCI, and the different different values in the DCI are different from the CRC mask in the DCI. Different combinations can be used to indicate different physical antennas.
  • the one or more first antennas for uplink transmission may be jointly represented by a subframe parity number and/or a slot parity number of the DCI and a CRC mask of the DCI.
  • the parity number of the subframe in which the DCI is located is different and/or the parity number of the slot is different, and different combinations of different CRC masks with DCI can be used to indicate different physical antennas.
  • one or more first antennas for uplink transmission may be jointly represented by indication information of a specified bit in the DCI and a subframe parity number and/or a slot parity number in which the DCI is located. Different combinations of different values of the specified bits in the DCI and different parity numbers of the subframe in which the DCI is located and/or different parity numbers of the time slots may be used to indicate different physical antennas.
  • the antenna selection indication information is used to indicate a first antenna group of the at least two antenna groups.
  • the one or more antennas included in the first antenna group are the one or more first antennas indicated by the antenna selection indication information.
  • the terminal may also be indicated by one or more of a CRC mask of the DCI, bit information of a specific bit in the DCI, and identification information of a time domain occupied by the DCI.
  • the antenna of the device is grouped, and the antenna included in the antenna group is determined as the first antenna, which is simple to operate, and increases the representation form of the antenna selection indication information of the one or more first antennas used by the terminal device for uplink transmission.
  • the variety of indication methods of antenna selection of the terminal device is enhanced. Different combinations of information such as different CRC masks of the DCI, different values of specific bits in the DCI, and different identification information corresponding to different time domains occupied by the DCI may be used to indicate different antenna packets. For example, a set of masks may correspond to one antenna group, and the correspondence between the antenna selection mask and the antenna group may be specified by a communication protocol.
  • the antenna selection indication information indicated by the different values of the specific bits in the DCI may also be used to indicate different antenna packets of the terminal device.
  • the correspondence between the value of the specific bit in the DCI and the first antenna packet is specified by the communication protocol or received from the network device. Different combinations of different masks of the DCI and different values of specific bits in the DCI can be used to indicate different antenna packets.
  • the antenna selection indication information corresponding to the antenna packet of the terminal device is characterized in various manners, and the diversity of the indication manner of the antenna packet of the terminal device is increased.
  • the correspondence between the antenna selection indication information and the first antenna packet is specified by a communication protocol or received from a network device.
  • At least two antenna packets of the foregoing terminal device may be specified by a communication protocol. It can be understood that at least three physical antennas of the terminal device can be divided into at least two antenna groups by a manner specified by a communication protocol, and one antenna packet can include one or more physical antennas.
  • the terminal device receives the first indication information from the network device, where the first indication information is used to indicate the at least two antenna packets.
  • the terminal device may determine, according to the first indication information received from the network device, how the at least three physical antennas are divided into one or more antenna packets, and further divide the plurality of physical antennas into at least two antenna groups, and one antenna group Can include one or more physical antennas.
  • the terminal device receives the radio resource control RRC signaling from the network device, where the RRC signaling includes the foregoing first indication information; or receives the media access control control element MAC from the network device.
  • CE signaling the MAC CE signaling includes the foregoing first indication information.
  • the first indication information is obtained in various ways and the operation is more flexible.
  • the terminal device may send the second indication information to the network device, where the second indication information is used to indicate that the at least three physical antennas of the terminal device are divided into at least two antenna groups, and It can be used to indicate one or more antennas included in each of the at least two antenna packets.
  • the terminal device may report capability information to the network device, where the capability information is used to indicate that the terminal device supports selecting one or more antennas from the at least three antennas.
  • the above capability information is used to indicate that the terminal device supports one or more of 1T4R, 2T4R, 1T8R, and 2T8R.
  • the antenna selection indication information of the one or more first antennas used by the terminal device for uplink transmission may be determined based on the capability information reported by the terminal device, thereby enhancing the reliability of the uplink transmission antenna selection of the terminal device. .
  • the antenna selection indication information is based on an uplink transmission mode of the terminal device.
  • the antenna selection indication information of the one or more first antennas used by the terminal device for uplink transmission may be determined according to an uplink transmission mode of the terminal device, and the reliability of the uplink transmission antenna selection of the terminal device may be enhanced. Improve the reliability of terminal device data transmission.
  • the correspondence between the antenna selection indication information and the one or more first antennas is specified by a communication protocol or received from a network device.
  • a method for antenna selection provided by an embodiment of the present application is applicable to a network device side.
  • the method includes: generating downlink control information DCI, and transmitting the DCI to a terminal device.
  • the antenna selection indication information corresponding to the DCI is used to indicate one or more first antennas for uplink transmission in at least three antennas of the terminal device.
  • the antenna selection indication information corresponding to the DCI is characterized by one or more of the following: bit information included in the DCI; a cyclic redundancy check check check CRC mask of the DCI; The identification information of the time domain occupied by the DCI.
  • the bit information included in the DCI is a bit value corresponding to one or more first antennas for uplink transmission; or the CRC mask of the DCI is corresponding to one or more first antennas used for uplink transmission.
  • the mask information of the time domain occupied by the DCI satisfies the time domain identifier information corresponding to one or more first antennas for uplink transmission.
  • the antenna selection indication information corresponding to the DCI is characterized by bit information included in the DCI; the network device may determine antenna selection indication information, generate a DCI including the antenna selection indication information, and The DCI is sent to the terminal device.
  • the antenna selection indication information corresponding to the DCI is bit information included in the DCI.
  • the correspondence between the bit information of the bit field and the one or more first antennas included in the DCI may be specified by a communication protocol or based on at least three antenna configurations of the terminal device.
  • the antenna selection indication information corresponding to the DCI is characterized by a CRC mask of the DCI; the network device may determine antenna selection indication information, where the antenna selection indication information is used for performing DCI Scrambled CRC mask.
  • the network device may scramble the DCI of the DCI according to the antenna selection indication information to obtain the scrambled DCI, and send the scrambled DCI to the terminal device.
  • the correspondence between the CRC mask of the DCI and one or more first antennas used by the terminal device for uplink transmission is specified by a communication protocol or based on at least three antenna configurations of the terminal device.
  • the antenna selection indication information corresponding to the DCI is characterized by the identifier information of the time domain occupied by the DCI; the network device may determine antenna selection indication information, where the antenna selection indication information is used. Indicates a time domain occupied by the DCI, and sends the DCI to the terminal device in a time domain indicated by the antenna selection indication information.
  • the antenna selection indication information corresponding to the DCI is the identification information of the time domain occupied by the DCI.
  • the correspondence between the identifier information of the time domain occupied by the DCI and one or more first antennas of the terminal device is specified by a communication protocol or based on at least three antenna configurations of the terminal device.
  • the network device may determine one or more antennas for uplink transmission in at least three antennas of the terminal device according to the capability information of the terminal device or the uplink transmission mode, and generate DCI and The terminal device transmits the DCI, and the DCI includes a bit value corresponding to one or more first antennas used by the terminal device for uplink transmission.
  • the network device may determine, according to the capability information of the terminal device or the uplink transmission mode, one or more first antennas for uplink transmission in at least three antennas of the terminal device, and use The mask corresponding to one or more antennas for uplink transmission described above scrambles the CRC of the DCI, and transmits the scrambled DCI to the terminal device.
  • the network device may determine, according to the capability information of the terminal device or the uplink transmission mode, one or more first antennas for uplink transmission in the at least three antennas of the terminal device, and The first time domain sends a DCI to the terminal device.
  • the first time domain satisfies time domain identifier information corresponding to one or more first antennas used by the terminal device for uplink transmission.
  • the first time domain may be a parity number of a subframe and/or a time slot occupied by the DCI, and the parity number of the subframe and/or the time slot corresponds to one or more first antennas used by the terminal device for uplink transmission. .
  • At least three antennas of the terminal device belong to at least two antenna groups, and antenna selection indication information of one or more first antennas used by the terminal device for uplink transmission is used to indicate A first antenna group of the at least two antenna packets. It can be understood that the one or more antennas included in the first antenna group are one or more first antennas indicated by the antenna selection indication information.
  • At least two antenna packets of the terminal device are specified by a communication protocol.
  • the correspondence between the antenna selection indication information of the one or more first antennas of the terminal device for uplink transmission and the first antenna packet is specified by a communication protocol or based on the terminal device. At least two antenna grouping configurations.
  • the network device may send, to the terminal device, first indication information, where the first indication information is used to indicate at least two antenna groups of the terminal device.
  • the network device may send the radio resource control RRC signaling to the terminal device, where the RRC signaling includes the foregoing first indication information; or send the media access control control element MAC CE signaling to the terminal device, where the MAC CE signaling
  • the first indication information described above is included.
  • the network device may receive second indication information from the terminal device, where the second indication information is used to indicate at least two antenna groups of the terminal device.
  • the network device may determine, according to the capability information of the terminal device, antenna selection indication information of the one or more first antennas used by the terminal device for uplink transmission, where the capability information is used.
  • the terminal device is instructed to support the ability to select one or more antennas from at least three antennas.
  • the network device may determine antenna selection indication information of one or more first antennas used by the terminal device for uplink transmission based on an uplink transmission mode of the terminal device.
  • the antenna selection indication information is based on the uplink transmission mode of the terminal device.
  • the capability information and/or the uplink transmission mode of the foregoing terminal device is used to indicate that the terminal device supports one or more of 1T4R, 2T4R, 1T8R, and 2T8R.
  • the corresponding relationship between the antenna selection indication information of the one or more first antennas used by the terminal device and the one or more first antennas of the terminal device It is stipulated by the communication protocol.
  • the embodiment of the present application provides a terminal device, where the terminal device includes a unit for performing the method for antenna selection provided by any of the foregoing first aspect and/or any possible implementation manner of the first aspect, and / or module, therefore, can also achieve the beneficial effects (or advantages) of the method of antenna selection provided by the first aspect.
  • the embodiment of the present application provides a network device, where the network device includes a unit for performing the method for antenna selection provided by any one of the foregoing possible aspects of the second aspect and/or the second aspect, and / or module, therefore, can also achieve the beneficial effects (or advantages) of the method of antenna selection provided by the second aspect.
  • an embodiment of the present application provides a terminal device, where the terminal device includes a memory, a transceiver, and a processor; wherein the memory, the transceiver, and the processor are connected by using a communication bus.
  • the memory is for storing a set of program code, the transceiver and the processor for calling the program code stored in the memory to perform the antenna selection provided by any one of the first aspect and/or the first aspect of the first aspect. The method thus also achieves the beneficial effects of the method of antenna selection provided by the first aspect.
  • an embodiment of the present application provides a network device, where the network device includes a memory, a transceiver, and a processor; wherein the memory, the transceiver, and the processor are connected by using a communication bus.
  • the memory is for storing a set of program code, the transceiver and the processor for invoking program code stored in the memory to perform antenna selection provided by any of the possible implementations of the second aspect and/or the second aspect above. The method thus also achieves the beneficial effects of the method of antenna selection provided by the second aspect.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions, when the instruction is run on the terminal device, causing the terminal device to perform the foregoing first aspect and/or
  • the method of antenna selection provided by any of the possible implementations of the first aspect can also achieve the beneficial effects of the method of antenna selection provided by the first aspect.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions, when the instruction is run on a network device, causing the network device to perform the foregoing second aspect and/or
  • the method of antenna selection provided by any of the possible implementations of the second aspect can also achieve the beneficial effects of the method of antenna selection provided by the second aspect.
  • the embodiment of the present application provides a communication device, which may be a chip or a plurality of chips working together, and the communication device includes an input device coupled to a communication device (eg, a chip) for executing
  • a communication device eg, a chip
  • coupled herein means that two components are combined directly or indirectly with each other. This combination may be fixed or movable, which may allow for the transfer of fluid, electrical, electrical or other types of signals between the two components.
  • the embodiment of the present application provides a communication device, which may be a chip or a plurality of chips working together, and the communication device includes an input device coupled to a communication device (eg, a chip) for executing
  • a communication device eg, a chip
  • coupled herein means that two components are combined directly or indirectly with each other. This combination may be fixed or movable, which may allow for the transfer of fluid, electrical, electrical or other types of signals between the two components.
  • an embodiment of the present application provides an antenna selection system, where the antenna selection system includes a processor, and the processor is configured to couple with a memory, and read and run instructions in the memory to support antenna selection.
  • the functions involved in one aspect for example, the information involved in the method of generating or processing the antenna selection provided by the first aspect above.
  • the antenna selection system further includes a memory for storing program instructions and data necessary for the antenna selection device.
  • the antenna selection system can be composed of a chip, and can also include a chip and other discrete devices.
  • an embodiment of the present application provides an antenna selection system, where the antenna selection system includes a processor for coupling with a memory, reading and running instructions in the memory for implementing the device for supporting antenna selection.
  • the antenna selection system further includes a memory for storing program instructions and data necessary for the antenna selection device.
  • the antenna selection system can be composed of a chip, and can also include a chip and other discrete devices.
  • the embodiment of the present application provides a computer program product including instructions, when the computer program product is run on a terminal device, enabling the terminal device to perform the antenna selection method provided by the foregoing first aspect,
  • the first aspect provides the beneficial effects of the method of antenna selection.
  • the embodiment of the present application provides a computer program product comprising instructions, when the computer program product is run on a network device, enabling the network device to perform the antenna selection method provided by the second aspect,
  • the second aspect provides the beneficial effects of the method of antenna selection.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an antenna selection of a terminal device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another antenna selection of a terminal device according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of an antenna selection method according to an embodiment of the present application.
  • FIG. 5 is another schematic flowchart of an antenna selection method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the method for selecting an antenna may be applied to an LTE system, or other wireless communication systems using various radio access technologies, for example, using code division multiple access (code Division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), single carrier A system of access technologies such as single carrier-frequency division multiple access (SC-FDMA).
  • code Division multiple access code Division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier A system of access technologies such as single carrier-frequency division multiple access
  • Antenna selection method provided in this embodiment is also applicable to applications other wireless communication systems, such as subsequent evolved system, as in the fifth-generation wireless (5 th generation, 5G, also known as a new air interface (New radio, NR)) system (or Said NR system), etc., no restrictions here.
  • 5G fifth-generation wireless
  • NR new air interface
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system provided in this embodiment of the present application includes, but is not limited to, a network device and a terminal device, which are not limited herein.
  • the network device and the terminal device shown in FIG. 1 may be referred to as a communication device, and the network device and the terminal device may each be a chip or a plurality of chips working together, and the network device and/or the terminal device may further include
  • the network device and/or the input device coupled to the terminal device are used to perform the antenna selection method provided by the embodiment of the present application. It can be determined according to the actual application scenario, and no limitation is imposed here.
  • the network device and the terminal device provided by the embodiment of the present application can perform data or signaling transmission through an antenna, including uplink transmission and downlink transmission.
  • the uplink transmission may be that the terminal device sends data or signaling to the network device
  • the downlink transmission may be that the network device sends data or signaling to the terminal device.
  • the terminal device involved in the present application may be a device that provides voice and/or data connectivity to a user, including a wired terminal and a wireless terminal.
  • the wireless terminal can be a handheld device with wireless connectivity, or other processing device connected to a wireless modem, and a mobile terminal that communicates with one or more core networks via a wireless access network.
  • the wireless terminal can be a mobile phone, a computer, a tablet, a personal digital assistant (PDA), a mobile internet device (MID), a wearable device, and an e-book reader. Wait.
  • the wireless terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • the wireless terminal can be a mobile station or an access point.
  • UE User equipment
  • RAN radio access network
  • the network device may include various forms of macro base stations, micro base stations, relay stations, access point base station controllers, transmission and reception nodes (TRPs), and the like.
  • TRPs transmission and reception nodes
  • a network device (or a base station) is called an evolved node B (eNB), and is followed by In the evolution system, it can also be called a new radio node B (new radio node B, gNB).
  • eNB evolved node B
  • gNB new radio node B
  • the above-mentioned devices are collectively referred to as network devices.
  • the antenna selection method provided by the embodiment of the present application is based on the system architecture shown in FIG. 1.
  • the network device may indicate, according to the capability of the terminal device, which one or more antennas are selected as the transmitting antennas for transmitting information to the network device during the uplink transmission process of the terminal device.
  • the network device indicates that the antenna selection made by the terminal device may specifically be the selection of the physical antenna of the terminal device.
  • the network device may instruct the terminal device to select from multiple physical antennas configured according to the number of transmitting antennas that the terminal device can support.
  • One or more physical antennas serve as transmit antennas for transmitting information to network devices.
  • the terminal device may select a corresponding physical antenna from multiple supported physical antennas to send information to the network device according to the indication of the network device.
  • the information that the terminal device sends to the network device may be physical uplink shared channel (PUSCH) data, or may be a physical uplink control channel (PUCCH), or a sounding reference signal (sounding reference) Signal, SRS), etc., are not limited here.
  • FIG. 2 is a schematic diagram of an antenna selection of a terminal device according to an embodiment of the present application.
  • the terminal device is configured with four physical antennas, which can be respectively labeled as antennas (referred to as TX) 0, TX1, TX2, and TX3.
  • TX antennas
  • TX1 antennas
  • TX2 antennas
  • TX3 antennas
  • two RF chains can be configured, and one RF chain can correspond to two physical antennas.
  • one of the two RF chains may correspond to TX0 and TX1
  • the other RF chain may correspond to TX2 and TX3.
  • the corresponding relationship is only an example, and may be determined according to actual application scenarios, and is not limited herein.
  • the physical antenna connected to the RF chain can be switched by the switching device, and then the information can be transmitted to the network device by establishing a connected physical antenna.
  • two RF antennas can select two physical antennas, and the terminal device can receive information through four physical antennas, and can transmit information through two of the four physical antennas, thereby realizing a terminal device supporting 2T4R.
  • the selection of the transmitting antenna can further obtain the diversity gain by using the channel difference between different antennas, and the operation is flexible and the applicability is higher.
  • FIG. 3 is a schematic diagram of another antenna selection of the terminal device provided by the embodiment of the present application.
  • the terminal device is configured with four physical antennas, such as antennas (TX) 0, TX1, TX2, and TX3, four RF chains, such as RF chain 1, RF chain 2, RF chain 3, and RF chain 4, can also be configured.
  • TX antennas
  • RF chain 1 can correspond to TX0
  • RF chain 2 can correspond to TX1
  • RF chain 3 can correspond to TX2
  • RF chain 4 can correspond to TX3.
  • the corresponding relationship between the foregoing RF chain and the antenna is only an example, and may be determined according to actual application scenarios, and is not limited herein.
  • the physical antenna connected to the RF chain can be connected or disconnected through the switching device, thereby whether the physical antenna connected to the RF chain is selected to the network.
  • the device sends a message.
  • the corresponding relationship between the RF link and the physical antenna shown in FIG. 2 and FIG. 3 is only an example, and is not limited to the connection manners shown in FIG. 2 and FIG. 3, and may be determined according to actual application scenarios, and is not limited herein.
  • Physical antenna It can be referred to as an antenna, which can also be called a user antenna, or a user antenna port, or a user port, etc., and is not limited herein.
  • a physical antenna will be taken as an example for description.
  • the physical antenna of the terminal device (and/or the network device) may include a transmitting antenna for transmitting information and a receiving antenna for receiving information.
  • the antenna can have a corresponding relationship with the feed port of the antenna.
  • a physical antenna can refer to an array of physical antennas. Different physical antennas may adopt different identifiers or indexes (for example, antenna port 0 (port 0), antenna port 1 (port 1), antenna port 2 (port 2), ..., as shown in FIG. 2 or FIG.
  • TX0, TX1. TX2 and TX3, etc. are distinguished and/or marked.
  • the antenna port used here to mark the physical antenna is different from the antenna port that carries the physical channel.
  • an antenna port for marking a physical antenna may be described by a physical antenna port, and an antenna port for carrying a physical channel may be described by a logical antenna port.
  • the transmitting antenna to be selected by the antenna selection method provided by the embodiment of the present application is a physical meaning (ie, a physical antenna), which may or may not be associated with the logical antenna port in the design.
  • Logical antenna port is a logical meaning.
  • the foregoing logical antenna port may include, but is not limited to, a logical antenna port for uplink data transmission (for convenience of description, which may be simply referred to as an uplink data channel), such as an antenna port of a PUSCH; a reference signal for demodulation (referred to as demodulation for short) a logical antenna port of a reference signal, such as a logical antenna port of a demodulation reference signal (DMRS); a logical antenna port for a channel sounding reference signal (which may be simply referred to as a channel sounding reference signal for convenience of description), such as The logical antenna port of the sounding reference signal (SRS).
  • a logical antenna port for uplink data transmission for convenience of description, which may be simply referred to as an uplink data channel
  • DMRS demodulation reference signal
  • SRS sounding reference signal
  • the logical antenna port provided by the embodiment of the present application refers to an antenna port for carrying a specific physical channel, and/or a physical signal.
  • Signals transmitted through the same logical antenna port, whether or not these signals are transmitted through the same or different physical antennas, the channels corresponding to the paths they experience in spatial transmission can be considered the same or related (such as large-scale channel characteristics, Such as channel matrix H, the same). That is to say, at the same logical antenna port, the receiving end can consider the channel to be the same or related when demodulating.
  • the signal receiving end identifies different signals transmitted over different transport channels through the logical antenna port.
  • mapping relationship between a logical antenna and a physical antenna is an implementation problem, and one or more physical antennas can be weighted to form a logical antenna.
  • the mapping between the logical antenna port corresponding to the logical antenna and the physical antenna port used to mark the physical antenna may also be a user implementation problem. For details, refer to the mapping of the physical antenna and the logical antenna and the mapping of the physical antenna port and the logical antenna port in the relevant communication protocol. Related user implementation content, no restrictions here.
  • FIG. 4 is a schematic flowchart of an antenna selection method according to an embodiment of the present application.
  • the method provided by the embodiment of the present application may include the following steps:
  • the network device determines an antenna selection mode of the terminal device.
  • the terminal device may report the capability information to the network device according to its own capability status.
  • the network device can obtain the capability information of the terminal device by means of the terminal device, and determine the capability of the terminal device based on the capability information reported by the terminal device.
  • the network device may also obtain capability information of the terminal device from the core network, and determine the capability of the terminal device based on the acquired capability information of the terminal device.
  • the capability of the terminal device may be an antenna selection mode in which the terminal device supports one or more antennas from among a plurality of antennas. For example, when the terminal device supports 1T2R, the capability of the terminal device is supported by one physical antenna and two physical antennas are received.
  • the antenna selection mode of the terminal device is to select one physical antenna from the two physical antennas as the uplink.
  • the transmitting antenna (for the convenience of description, the antenna selection method of the terminal device is 1T2R), and also indicates that the terminal device has at least two physical antennas.
  • the terminal device supports 1T4R it indicates that the capability of the terminal device is to support one physical antenna transmission and four physical antennas to receive, that is, the antenna selection mode of the terminal device is to select one physical antenna from the four physical antennas for uplink transmission.
  • the transmitting antenna (for the convenience of description, the antenna selection method of the terminal device is 1T4R), and also indicates that the terminal device has at least four physical antennas.
  • the antenna selection mode of the terminal device is to select two physical antennas from the four physical antennas for uplink transmission.
  • the transmitting antenna (for the convenience of description, the antenna selection method of the terminal device is 2T4R), and also indicates that the terminal device has at least four physical antennas.
  • the terminal device supports 1T8R it indicates that the capability of the terminal device is to support one physical antenna transmission and eight physical antennas to receive, that is, the antenna selection mode of the terminal device is to select one physical antenna from eight physical antennas for uplink transmission.
  • the transmitting antenna (for the convenience of description, the antenna selection method of the terminal device is 1T8R), and also indicates that the terminal device has at least eight physical antennas.
  • the capability information reported by the terminal device to the network device may be used to indicate (or indicate) that the terminal device supports selecting one or more physical antennas from the plurality of physical antennas to send to the network device.
  • the capability identification information of the transmitting antenna of the information For example, when the terminal supports 1T4R, the capability information reported by the terminal device to the network device may be 1T4R, that is, the antenna selection mode of the terminal device is 1T4R.
  • the network device may determine that the terminal device supports one physical antenna transmission and four physical antennas, and may also determine that the terminal device has four physical antennas.
  • the capability information reported by the terminal device to the network device may be 2T4R, that is, the antenna selection mode of the terminal device is 2T4R.
  • the network device may determine that the terminal device supports two physical antenna transmissions and four physical antennas, and may also determine that the terminal device has four physical antennas.
  • the network device can determine that the terminal device supports 1T8R or 2T8R according to the capability information reported by the terminal device, and details are not described herein.
  • the network device may determine the antenna selection mode of the terminal device according to an uplink transmission mode of the terminal device. For example, when the uplink transmission mode of the terminal device is TM1, it indicates that the uplink transmission of the terminal device is a single antenna transmission. The network device may determine that the capability of the terminal device is that the terminal device can only transmit information of one physical antenna according to the uplink transmission mode of the terminal device. When the uplink transmission mode of the terminal device is TM2, it indicates that the uplink transmission mode of the terminal device is uplink multiple-input multiple-output (MIMO) multi-antenna transmission. The network device can determine that the terminal device can support information transmission of multiple physical antennas according to the uplink transmission mode of the terminal device.
  • MIMO multiple-input multiple-output
  • the uplink transmission mode of the terminal device may be configured by the network device, and the uplink transmission mode of the terminal device has a corresponding relationship with the antenna selection mode of the terminal device for transmitting uplink data. That is to say, the antenna selection mode (for example, 1T2R, 1T4R, or 2T4R, etc.) for transmitting the uplink data by the terminal device has a corresponding relationship with the uplink transmission mode configured by the network device to the terminal device.
  • the corresponding relationship may be specified by a communication protocol, or may be configured by a network device by using a signaling, and is not limited herein.
  • the network device sends, to the terminal device, a configuration parameter that enables selection of an uplink data transmission antenna.
  • the network device may send, by using the high layer signaling, configuration parameters that enable the uplink data transmission antenna selection of the terminal device to the terminal device. That is to say, the antenna selection of the uplink data transmission of the terminal device is configured by the network device through high layer signaling.
  • the configuration parameter of the uplink data transmission antenna selection of the enabled terminal device that is sent by the network device to the terminal device may be ue-TransmitAntennaSelection.
  • the network device can indicate whether the antenna selection of the uplink data transmission of the terminal device is a closed loop antenna selection or an open loop antenna selection by using the value of the configuration parameter ue-TransmitAntennaSelection.
  • the following steps S303 to S305 may be performed. If the configuration parameter sent by the network device to the terminal device indicates that the uplink data transmission antenna of the terminal device is selected as an open loop antenna selection, the communication protocol does not specify an antenna for uplink data transmission of the terminal device, and the antenna selection of the uplink data transmission of the terminal device at this time
  • the implementation behavior of the terminal device is not limited here. If the network device does not send the configuration parameter for enabling the uplink data transmission antenna selection to the terminal device, the terminal device does not perform antenna selection for uplink data transmission, but directly uses the physical antenna port specified by the communication protocol for uplink data transmission. Make restrictions.
  • the network device sends downlink control information to the terminal device.
  • the terminal device determines antenna selection indication information according to downlink control information received from the network device.
  • the network device may determine antenna indication information of one or more antennas used by the terminal device for uplink transmission according to an antenna selection manner of the terminal device.
  • the antenna selection mode of the terminal device may include selecting a number of physical antennas as the transmitting antennas for uplink transmission, and may also include which one or which physical antennas are selected as the transmitting antennas for uplink transmission. For example, if the terminal device supports the 1T4R, the network device may determine the selection manner of the transmitting antenna of the terminal device according to the capability information of the terminal device or the uplink transmission mode, or may select one physical antenna from the four physical antennas as the transmitting antenna, or may be Specifically, which of the four physical antennas is selected as the transmitting antenna.
  • the network device may determine, according to the capability information of the terminal device or the uplink transmission mode, that the selection manner of the transmitting antenna of the terminal device may be one or two physical antennas as the transmitting antenna. It is also possible to specifically select which of the four physical antennas or which of the two physical antennas is used as the transmitting antenna or the like.
  • the network device can also determine the antenna selection mode that matches the capability of the terminal device according to the capability information of the terminal device or the uplink transmission mode.
  • the number of antennas is not limited.
  • the network device may determine, according to the capability information of the terminal device or the uplink transmission mode, an antenna selection manner when the terminal device selects the transmitting antenna, and may also configure corresponding antenna selection indication information according to the determined antenna selection manner.
  • the antenna selection indication information may be used to indicate which one of the plurality of physical antennas that the terminal device selects or which physical antennas to use as the uplink transmission transmission antenna.
  • the corresponding relationship between the antenna selection indication information and one or more physical antennas may be specified by a communication protocol, or may be configured by a network device, and may be determined according to an actual application scenario, and is not limited herein.
  • one or more physical antennas selected by the above terminal device from among a plurality of physical antennas configured therein may also be referred to as one or more first antennas.
  • the first antenna represents a physical antenna used by the terminal device for uplink transmission, and the number of the first antenna may be one or multiple, and is not limited herein.
  • the network device determines, according to the capability information of the terminal device or the uplink transmission mode, that the selection manner of the transmitting antenna of the terminal device may be: selecting one physical antenna from the four physical antennas as the transmitting antenna, or After selecting the physical antenna of the four physical antennas as the transmitting antenna, the network device may be configured to indicate that the terminal device selects one of the four physical antennas configured by the terminal device and/or which physical antenna is used as the transmitting antenna. Antenna selection indication information.
  • the network device may generate downlink control information (DCI) and send the DCI to the terminal device.
  • the network device may transmit the antenna selection indication information to the terminal device by transmitting the DCI to the terminal device.
  • the terminal device may receive the DCI from the network device, acquire antenna selection indication information corresponding to the DCI, and send information to the network device according to one or more first antennas indicated by the antenna selection indication information.
  • the implementation manner of the network device transmitting the DCI to the terminal device and transmitting the antenna selection indication information to the terminal device by using the DCI includes, but is not limited to, the following implementation manners 1 to 5, or any combination of implementation manners 1 to 5. In the following, the implementation manners of the foregoing implementation manners 1 to 5 are described in combination with the capabilities of the terminal devices in different application scenarios:
  • the DCI is based on a cyclic redundancy check (CRC) for error detection, and the network device can scramble the CRC check bits carried in the DCI sent to the terminal device.
  • the antenna selection mode is indicated to the terminal device by a mask pair for scrambling the CRC of the DCI.
  • the terminal device does not support the antenna selection of the uplink transmission or the terminal device does not apply the antenna selection for the uplink transmission, after the network device adds the CRC check bit to the DCI transmitted to the terminal device, the CRC check bit can pass the corresponding wireless.
  • a radio network tempory identity (eg, x rnti, 0 , x rnti, 1 , ..., x rnti, 15 ) is scrambled to obtain the scrambled sequence c 0 , c 1 , c 2 , c 3 ,...,c B-1 .
  • B A + L
  • A is the physical downlink control channel (PDCCH) payload size
  • L is the number of CRC check bits
  • A is the PDCCH payload size and L is the number of parity bits See 5.3.3.2 CRC attachment in Protocol 36.212.
  • the CRC check bit may pass the corresponding RNTI (for example, x rnti,0 ,x rnti,1 ,...,x rnti,15 ) and mask (eg x AS,0 ,x AS,1 ,...,x AS,15 ) are scrambled, Obtain the scrambled sequences c 0 , c 1 , c 2 , c 3 , ..., c B-1 (see 5.3.3.2 CRC attachment in Protocol 36.212).
  • RNTI for example, x rnti,0 ,x rnti,1 ,...,x rnti,15
  • mask eg x AS,0 ,x AS,1 ,...,x AS,15
  • the above-mentioned mask for scrambling the CRC check bit of the DCI may be simply referred to as a CRC mask, which may also be referred to as a CRC mask of the DCI.
  • the CRC mask can be used as the antenna selection indication information.
  • the antenna selection indication information corresponding to the DCI acquired by the terminal device from the DCI transmitted by the network device may be characterized by the CRC mask of the DCI.
  • the network device may determine one or more antennas for uplink transmission among the plurality of physical antennas of the terminal device according to an antenna selection manner of the terminal device, and further determine a mask corresponding to the one or more antennas used for uplink transmission. .
  • the network device may use the mask to combine the corresponding RNTI to scramble the generated CRC for scheduling the terminal device's DCI, and send the scrambled DCI from the terminal device to indicate to the terminal device by using the DCI CRC mask.
  • One or more physical antennas for uplink transmission may also be referred to as an antenna selection mask, or a mask, which may be determined according to actual application scenarios, and is not limited herein. .
  • the network device may instruct the terminal device to select a different physical antenna from the four physical antennas as the transmitting antenna by using four different antenna selection masks.
  • the correspondence between the antenna selection mask and the physical antenna indicated by the table can be described below.
  • the correspondence between the antenna selection mask and the physical antenna indicated by the antenna may also be represented by any other form other than the table, which may be determined according to the requirements of the actual application scenario, and is not limited herein.
  • Table 1 is a correspondence table between the antenna selection mask and the physical antenna port selected by the transmitting antenna.
  • different physical antenna ports can be used to identify different physical antennas.
  • a set of antenna selection masks may correspond to one physical antenna port.
  • the correspondence between the antenna selection mask and the physical antenna port selected by the transmitting antenna may be specified by a communication protocol, or may be configured by a network device, and details are not described herein again.
  • the antenna selection mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0.
  • the physical antenna (assuming physical antenna 0, or TX0) whose physical antenna port is port 0 among the four physical antennas of the terminal device may be indicated as the first antenna.
  • the first antenna may represent a transmitting antenna that selects information for transmitting information to the network device from the four physical antennas of the terminal device, and details are not described herein.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0> can indicate four physical antennas of the terminal device.
  • the physical antenna in which the physical antenna port is port 3 (assumed to be physical antenna 3 or TX3) is the first antenna.
  • different physical antennas of the four physical antennas of the terminal device may be used as the first antenna through different antenna selection masks.
  • the network device may further indicate that the terminal device selects different physical antennas from the four physical antennas as the transmitting antenna by using four different antenna selection masks as shown in Table 2 below.
  • Table 2 is another correspondence table between the antenna selection mask and the physical antenna port selected by the transmitting antenna.
  • the antenna selection mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0, 0> may indicate that the physical antenna of the four physical antennas of the terminal device whose physical antenna port is port 0 is the first antenna.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1> may indicate the physical antenna of the four physical antennas of the terminal device.
  • the physical antenna whose port is port 3 is the first antenna.
  • different physical antennas of the four physical antennas of the terminal device may be used as the first antenna through different antenna selection masks.
  • the network device may instruct the terminal device to select a different physical antenna from the eight physical antennas as the transmitting antenna by using eight different antenna selection masks.
  • the network device may also instruct the terminal device to select a different physical antenna from among the eight physical antennas as the transmitting antenna by eight different antenna selection masks as shown in Tables 3 and 4 below.
  • Table 3 is another correspondence table between the antenna selection mask and the physical antenna port selected by the transmitting antenna.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0, 0> may indicate that the physical antenna of the eight physical antennas of the terminal device whose physical antenna port is port 0 is the first antenna.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0> can indicate the physical antenna among the eight physical antennas of the terminal device.
  • the physical antenna whose port is port 7 is the first antenna.
  • different antenna selection masks may indicate that different physical antennas of the eight physical antennas of the terminal device are the first antenna.
  • Table 4 is another correspondence table of the antenna selection mask and the physical antenna port selected by the transmitting antenna.
  • the antenna selection mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0, 0> may indicate that the physical antenna of the eight physical antennas of the terminal device whose physical antenna port is port 0 is the first antenna.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1> can indicate the physical antenna among the eight physical antennas of the terminal device.
  • the physical antenna whose port is port 7 is the first antenna.
  • different antenna selection masks may indicate that different physical antennas of the eight physical antennas of the terminal device are the first antenna.
  • the network device may instruct the terminal device to select a different physical antenna from the four physical antennas as the transmitting antenna by using four different antenna selection masks.
  • the network device may also instruct the terminal device to select two different physical antennas from the four physical antennas as the transmitting antenna by using four different antenna selection masks as shown in Table 5 below.
  • Table 5 is another correspondence table between the antenna selection mask and the physical antenna port selected by the transmitting antenna.
  • the antenna selection mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0, 0> may indicate that the two physical antennas of the four physical antennas of the terminal device are port 0 and the two physical antennas of port 1 are the first antenna.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1> can indicate the physical antenna of the four physical antennas of the terminal device.
  • the two physical antennas of port 0 and port 3 are the first antenna.
  • different antenna selection masks may indicate that two different physical antennas of the four physical antennas of the terminal device are the first antenna.
  • the physical antennas on the terminal device side may also be grouped in advance, and one antenna group includes at least one physical antenna.
  • the antenna grouping of the terminal device may also be indicated by an antenna selection mask, and the antenna included in the antenna group may be determined as the first antenna.
  • the antenna grouping on the terminal device side may be specified by a communication protocol (such as grouping mode 1), or may be indicated by a network device (such as grouping mode 2), or may be determined by other more grouping methods, or may be grouping mode 1
  • the combination of the grouping mode 2 and the other grouping manners may be determined according to the actual application scenario, and is not limited herein. The following describes the grouping mode 1 and the grouping mode 2 as an example.
  • the terminal device when the terminal device supports 1T2R, 1T4R, 1T8R, 2T4R, or 2T8R, etc., it may be determined that the physical antennas on the terminal device side are two, four, or eight, and the like.
  • the two, four or eight physical antennas of the terminal device may be divided into one or more antenna packets by a predefined packet rule such as a communication protocol.
  • a predefined packet rule such as a communication protocol.
  • the terminal device when the terminal device supports 2R (for example, 1T2R), the antenna configuration of the terminal device may be simply referred to as 2R.
  • 4R for example, 1T4R or 2T4R
  • the antenna configuration of the terminal device can be simply referred to as 4R.
  • the terminal device supports 8R for example, 1T8R or 2T8R
  • the antenna configuration of the terminal device may be referred to as 8R.
  • the antenna of the terminal device is configured as 4R
  • the physical antenna port numbers of the four physical antennas of the terminal device are 0, 1, 2, and 3 respectively (corresponding to port 0, port 1, port 2, and port 3, respectively, below) Similar implementations will not be repeated here).
  • the four physical antennas of the terminal device can be divided into six antenna packets by a predefined packet rule such as a communication protocol.
  • the above six antenna groups may be ⁇ 0, 1 ⁇ , ⁇ 0, 2 ⁇ , ⁇ 0, 3 ⁇ , ⁇ 1, 2 ⁇ , ⁇ 1, 3 ⁇ , ⁇ 2, 3 ⁇ , respectively.
  • the physical antenna port numbers of the four physical antennas of the terminal device are 0, 1, 2, and 3, respectively.
  • the four physical antennas of the terminal device can be divided into four antenna packets by a predefined packet rule such as a communication protocol.
  • the above four antenna groups may be ⁇ 0, 1, 2 ⁇ , ⁇ 0, 1, 3 ⁇ , ⁇ 0, 2, 3 ⁇ , ⁇ 1, 2, 3 ⁇ , respectively.
  • the physical antenna port numbers of the four physical antennas of the terminal device are 0, 1, 2, and 3, respectively.
  • the four physical antennas of the terminal device can be divided into eleven antenna packets by a predefined packet rule such as a communication protocol.
  • the eleven antenna groups described above may be ⁇ 0 ⁇ , ⁇ 1 ⁇ , ⁇ 0, 1 ⁇ , ⁇ 0, 2 ⁇ , ⁇ 0, 3 ⁇ , ⁇ 1, 2 ⁇ , ⁇ 1, 3 ⁇ , ⁇ 2,3 ⁇ , ⁇ 0,1,2 ⁇ , ⁇ 0,1,3 ⁇ , ⁇ 0,2,3 ⁇ .
  • the antenna of the terminal device is configured as 8R
  • the physical antenna port numbers of the eight physical antennas of the terminal device are 0, 1, 2, 3, 4, 5, 6, and 7, respectively.
  • the eight physical antennas of the terminal device can be divided into twenty-eight antenna packets by a predefined packet rule such as a communication protocol.
  • the twenty-eight antenna groups described above may be ⁇ 0, 1 ⁇ , ⁇ 0, 2 ⁇ , ⁇ 0, 3 ⁇ , ⁇ 0, 4 ⁇ , ⁇ 0, 5 ⁇ , ⁇ 0, 6 ⁇ , ⁇ 0, respectively.
  • the manner of grouping the physical antennas of the foregoing terminal devices is only an example, and is not exhaustive, and includes, but is not limited to, the foregoing grouping manners, which may be determined according to actual application scenario requirements, and is not limited herein.
  • the terminal device may also report the indication information of the antenna group to the network device.
  • the antenna grouping manner of the physical antenna of the terminal terminal device may be determined according to the indication information, and the antenna selection manner of the transmitting antenna may be indicated from the terminal device by using an antenna selection mask or the like.
  • the manner of dividing the antenna packets on the terminal device side may also be determined by the indication information delivered by the network device.
  • the terminal device may receive high layer signaling from the network device, and determine an antenna grouping manner according to the indication information included in the high layer signaling.
  • the high-level signaling may include radio resource control (RRC) signaling and/or media access control (MAC) control element (CE) signaling, etc., and is not limited herein. .
  • the network device can directly send the indication information by using the high layer signaling, indicating that the antenna group of the physical antenna of the terminal device is ⁇ 0, 1 ⁇ , ⁇ 0, 2 ⁇ , ⁇ 0, 3 ⁇ , ⁇ 1, 2 ⁇ , ⁇ 1, 3 ⁇ , ⁇ 2, 3 ⁇ . That is, the network device can directly indicate the physical antenna port number of the physical antenna included in each antenna packet in the physical antenna packet of the terminal device through high layer signaling.
  • the terminal device may determine, by the indication information included in the high layer signaling, that the antenna grouping mode of the physical antenna is ⁇ 0, 1 ⁇ , ⁇ 0, 2 ⁇ , ⁇ 0, 3 ⁇ , ⁇ 1,2 ⁇ , ⁇ 1,3 ⁇ , ⁇ 2,3 ⁇ . That is, the four physical antennas of the terminal device can be combined in two to obtain six antenna groups.
  • the network device can directly send the indication information by using the high layer signaling, indicating that the antenna group of the physical antenna of the terminal device is ⁇ 0, 1, 2 ⁇ , ⁇ 0, 1, 3 ⁇ , ⁇ 0, 2, 3 ⁇ , ⁇ 1, 2,3 ⁇ . That is, the four physical antennas of the terminal device can be combined into three antenna groups to obtain four antenna groups.
  • the antenna grouping manner indicated by the indication information sent by the network device by using the high-layer signaling is only an example, and is not exhaustive, including but not limited to the foregoing grouping manners, which may be determined according to actual application scenario requirements, and is not limited herein. .
  • the terminal device supports 2T4R
  • the four physical antennas of the terminal device are divided into six antenna packets by using a pre-defined packet rule, such as a communication protocol, or the indication information sent by the high-level signaling of the network device indicates the division.
  • the above six antenna groups are ⁇ 0, 1 ⁇ , ⁇ 0, 2 ⁇ , ⁇ 0, 3 ⁇ , ⁇ 1, 2 ⁇ , ⁇ 1, 3 ⁇ , ⁇ 2, 3 ⁇ .
  • the above six antenna groups can be marked by port group0, port group1, port group2, port group3, port group4, and port group5.
  • the network device can indicate different ones of the six antenna packets described above by six different sets of antenna selection masks.
  • the terminal device may determine a corresponding antenna group from the six antenna groups according to a correspondence between six different antenna selection masks and six antenna groups, and then determine one or more physical antennas included in the antenna group.
  • the transmit antenna for the uplink transmission As shown in Table 6 below, Table 6 is a correspondence table between the antenna selection mask and the antenna group selected by the transmitting antenna. Wherein, a set of antenna selection masks may correspond to one antenna group.
  • the correspondence between the antenna selection mask and the antenna packet may be specified by a communication protocol, or may be configured by a network device, and details are not described herein again.
  • the antenna selection mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0.
  • > may indicate the antenna packet port group0 of the six antenna packets of the terminal device.
  • the antenna packet port group0 indicated by the antenna selection sample may be set as the first antenna packet, and the two physical antennas including the physical antenna port number ⁇ 0, 1 ⁇ in the antenna packet port group 0 may be determined as physical.
  • the antenna ports are the two first antennas of port 0 and port 1.
  • the antenna selection masks ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1> may indicate antennas in the six antenna groups of the terminal device. Group port group1.
  • the antenna packet port group1 indicated by the antenna selection mask may be set as the first antenna packet, and the antenna packet port group 1 includes two physical antennas whose physical antenna port number is ⁇ 0, 2 ⁇ . It can be determined that the physical antenna ports are the two first antennas of port 0 and port 2.
  • one of the six antenna packets of the terminal device can be indicated by a different antenna selection mask, and the two physical antennas included in the antenna packet can be determined as the first antenna.
  • Table 7 below is another correspondence table between the antenna selection mask and the antenna group selected by the transmitting antenna.
  • the correspondence between the antenna selection mask and the antenna packet shown in Table 6 above is selected by the antennas of different expressions in the correspondence table between the antenna selection mask and the antenna group selected by the transmission antenna shown in Table 7.
  • the mask may indicate one of the six antenna packets of the terminal device, and the two physical antennas included in the antenna packet may be determined as the first antenna.
  • the four physical antennas of the terminal device are divided into four antenna packets by using a pre-defined packet rule, such as a communication protocol, or the indication information sent by the high-level signaling of the network device indicates the division.
  • a pre-defined packet rule such as a communication protocol
  • the indication information sent by the high-level signaling of the network device indicates the division.
  • the above four antenna groups are ⁇ 0, 1, 2 ⁇ , ⁇ 0, 1, 3 ⁇ , ⁇ 0, 2, 3 ⁇ , ⁇ 1, 2, 3 ⁇ .
  • the above four antenna groups can be marked by port group0, port group1, port group2, and port group3.
  • the network device may indicate different ones of the four antenna packets described above by four different sets of antenna selection masks.
  • the terminal device may determine a corresponding antenna group from the four antenna groups according to the correspondence between the four different antenna selection masks and the four antenna groups, and then determine one or more physical antennas included in the antenna group.
  • the transmit antenna for the uplink transmission is another correspondence table between the antenna selection mask and the antenna group selected by the transmitting antenna.
  • the antenna selection mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0.
  • > may indicate the antenna packet port group0 of the four antenna packets of the terminal device.
  • the antenna packet port group 0 indicated by the antenna selection sample may be set as the first antenna packet, and the three physical antennas including the physical antenna port number ⁇ 0, 1, 2 ⁇ in the antenna packet port group 0 may be determined as The physical antenna ports are the three antennas of port 0, port 1, and port 2.
  • the terminal device supports 2T4R, that is, the terminal device can only support two physical antennas to transmit, and cannot support three physical antennas to be transmitted.
  • the network device selects the mask through the antenna selection ⁇ 0, 0, 0, 0, 0, 0. , 0,0,0,0,0,0,0,0,0,0,0,0> indicates the antenna group port group0 in the four antenna groups of the terminal device, and the physical antenna port in port group0 is port 0, port1 and port2 Any two of the three antennas can be selected as the first antenna.
  • the terminal device determines that the antenna group supported by the network device is port group0 through the antenna selection mask, and further selects two physical antennas in the port group 0, port 0, port 1 and port 2 as the transmitting antenna, The network device sends a message.
  • the antenna selection mask ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1> can indicate four antenna groups of the terminal device.
  • the antenna in the group is port group1.
  • the antenna packet port group1 indicated by the antenna selection mask may be set as the first antenna packet, and the antenna packet port group 1 includes three physical antennas with physical antenna port numbers ⁇ 0, 1, 3 ⁇ . It can be determined that the physical antenna ports are three physical antennas of port 0, port 1 and port 3.
  • the terminal device may determine, as the first antenna, two physical antennas of the three physical antennas of port 0, port 1, and port 3 from the physical antenna port.
  • one of the four antenna packets of the terminal device may be indicated by a different antenna selection mask, and one or more physical antennas included in the antenna packet may be determined as the first antenna.
  • the network device may use the antenna selection mask (ie, the CRC mask of the DCI) as the antenna selection indication information, and send the antenna selection indication information to the terminal device by sending the DCI to the terminal device.
  • the terminal device can receive the DCI from the network device, and can determine the antenna selection indication information by using the CRC mask of the DCI, and use the antenna indicated by the antenna selection indication information as the transmitting antenna to support the selection of the transmitting antennas of different terminal devices with different capabilities.
  • the operation is simple and the applicability is strong.
  • the network device may also indicate the antenna selection indication information corresponding to the DCI by using indication information (or bit information) of the specified bit (or specific bit) in the DCI, by sending the DCI to the terminal device, The antenna selection indication information is sent to the terminal device.
  • the DCI of the scheduling terminal device sent by the network device includes 2 bits (ie, designated bits), and the values of the 2 bits may be 00, 01, 10, and 11.
  • the 2bit is only an example. Specifically, 1 bit or more bits can be selected according to the actual application scenario, and no limitation is imposed here. Different values may be used as indication information indicating different physical antennas and/or different antenna groups.
  • the network device can obtain the antenna selection indication information by configuring the value of the 2 bits. After determining the value of the 2 bits, the network device may generate a DCI for scheduling the terminal device, where the DCI may include a bit value corresponding to one or more antennas used by the terminal device for uplink transmission, for example, the above 2 bits. Value.
  • the network device may encode the DCI including the antenna selection indication information indicated by the value of the 2 bits and transmit it to the terminal device.
  • the terminal device may receive the DCI from the network device, and further decode the DCI to obtain the 2 bit value determining antenna selection indication information included in the DCI.
  • the network device may indicate the physical antenna port used by the current terminal device to send the uplink information to the network device by scheduling the 2 bit "antenna selection indication information" in the DCI of the terminal device. For example, assume that the physical antenna port numbers of the four physical antennas of the terminal device are 0, 1, 2, and 3, respectively. If the value of 2 bits in the DCI is 00 (indicating "antenna selection instruction information" of 2 bits in the DCI) is 00, it means that the physical antenna port of the physical antenna indicated by the 2-bit antenna selection instruction information in the DCI is 0.
  • the terminal device may determine, by using the 2-bit antenna selection indication information in the DCI, a physical antenna that selects a physical antenna port of 0 from the four physical antennas as a transmitting antenna. Similarly, when the 2-bit "antenna selection indication information" of the DCI is 01, the physical antenna port of the physical antenna indicated by the 2-bit antenna selection instruction information in the DCI is 1. After receiving the DCI from the network device, the terminal device may determine, by using the 2-bit antenna selection indication information in the DCI, a physical antenna that selects a physical antenna port of 1 from the four physical antennas as a transmitting antenna.
  • the terminal device may determine, by using the 2-bit antenna selection indication information in the DCI, a physical antenna that selects the physical antenna port 2 from the four physical antennas as the transmitting antenna.
  • the 2-bit "antenna selection instruction information" of the DCI is 11
  • the physical antenna port of the physical antenna indicated by the 2-bit antenna selection instruction information in the DCI is three.
  • the terminal device may determine, by using the 2-bit antenna selection indication information in the DCI, a physical antenna that selects the physical antenna port 3 from the four physical antennas as the transmitting antenna.
  • Table 9 below is a table showing the correspondence between the indication information and the physical antenna port in the DCI.
  • the correspondence between the indication information of the specified bit in the DCI and the physical antenna indicated by the DCI may also be represented by any other representation form other than the table, which may be determined according to the requirements of the actual application scenario, and is not limited herein.
  • the correspondence between the indication information of the specified bit in the DCI and the physical antenna port selected by the transmitting antenna may be specified by a communication protocol, or may be configured by a network device, and details are not described herein again.
  • the 2-bit antenna selection indication information in the DCI may also be used to indicate an antenna grouping of the terminal device. For example, when the 2-bit "antenna selection instruction information" of the DCI is 00, the antenna group of the physical antenna indicated by the 2-bit antenna selection instruction information in the DCI is port group 0. After the terminal device receives the DCI from the network device, the 2 bit antenna selection indication information in the DCI may be used to determine a port group 0 of the plurality of antenna packets, and one of the physical antennas included in the port group 0 may be determined to be used for The transmitting antenna that the network device sends information.
  • the antenna group of the physical antenna indicated by the 2-bit antenna selection instruction information in the DCI is port group 1.
  • the terminal device may determine, by using the 2-bit antenna selection indication information in the DCI, a port group1, and one of the physical antennas included in the port group1 may be determined to be used for The transmitting antenna that the network device sends information.
  • Table 10 below is a table showing the correspondence between the indication information in the DCI and the antenna grouping of the physical antenna.
  • the correspondence between the indication information of the specified bit in the DCI and the physical antenna packet indicated by the DCI may also be represented by any other representation form other than the table, which may be determined according to the requirements of the actual application scenario, and is not limited herein.
  • the antenna selection indication information of the specified bit in the DCI may also indicate that the terminal device selects two of the x physical antennas configured as the transmitting antenna, or selects one antenna group and The two physical antennas in the antenna group are used as the transmitting antennas.
  • the above x may be 4 or 8, etc., and is not limited herein.
  • the network device may send the DCI to the terminal device, and include the 2 bit indication information in the DCI sent to the terminal device, where the value of the 2 bits in the DCI can be used as the antenna selection indication information.
  • the network device sends the 2 bit antenna selection indication information specified in the DCI to the terminal device by sending the DCI to the terminal device.
  • the terminal device may receive the DCI from the network device, and may determine the antenna selection indication information according to the value of the 2-bit indication information in the DCI, and use the antenna indicated by the antenna selection indication information as the transmitting antenna to send the uplink information.
  • the embodiment of the present application can indicate that the terminal device performs the selection of the transmitting antenna by using the indication information of the specified bit such as 2 bits in the DCI, and can support the selection of the transmitting antennas of different terminal devices with different capabilities, and does not need to add more control information and/or Or signaling transmission, the signaling overhead is small, and the uplink transmission reliability of the terminal device is high, and the applicability is stronger.
  • the antenna selection indication information of the terminal device may also be jointly characterized according to the indication information of the specified bit in the DCI sent by the network device to the terminal device and the CRC mask of the DCI.
  • the correspondence between the antenna selection indication information jointly indicated by the indication information of the designated bit in the DCI and the CRC mask of the DCI and the one or more first antennas of the terminal device may be specified by a communication protocol, or may be configured by the network device. This is not a limitation.
  • the network device may generate a DCI including indication information of a specified bit corresponding to one or more antennas used by the terminal device for uplink transmission, and add the CRC of the DCI by using a CRC mask corresponding to the one of the multiple antennas.
  • the network device may send the indication information of the specified bit in the DCI and the CRC mask of the DCI as the antenna selection indication information to the terminal device by sending the DCI to the terminal device.
  • the terminal device selects one physical antenna from its x physical antennas as the antenna selection indication information of the transmitting antenna, and the 1 bit indication information and the DCI CRC mask in the DCI that can be sent by the network device. Determine together.
  • the terminal device selects one antenna packet from the plurality of antenna packets to which the x physical antennas belong, and uses any one of the one or more physical antennas included in the antenna packet as the transmitting antenna.
  • the DCI CRC mask is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> and the DCI 1 bit indication information (that is, the value of 1 bit) is "0", which can be the antenna selection indication information.
  • the antenna selection indication information 0 can be described as an example.
  • the antenna selection indication information 0 may be used to indicate that the physical antenna with the physical antenna port of the x physical antennas of the terminal device is 0 is a transmitting antenna.
  • the antenna selection indication information 0 may be used to indicate port group 0 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 0 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the DCI CRC mask is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1> and 1 bit indication in the DCI. It can be "0" to select the indication information for the antenna.
  • the antenna selection indication information 1 can be used as an example for description.
  • the antenna selection indication information 1 may be used to indicate that the physical antenna with the physical antenna port of the x physical antennas of the terminal device is 1 is a transmitting antenna.
  • the antenna selection indication information 1 may be used to indicate port group1 of the plurality of antenna groups obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group1 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the DCI CRC mask is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> and 1 bit indication in the DCI.
  • the parameter "1" can be selected for the antenna, and the antenna selection indication information 2 can be described as an example for convenience of description.
  • the antenna selection indication information 2 may be used to indicate that the physical antenna of the x physical antennas of the terminal device has a physical antenna port of 2 as a transmitting antenna.
  • the antenna selection indication information 2 may be used to indicate port group 2 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 2 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the DCI CRC mask is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1> and 1 bit indication in the DCI.
  • the parameter "1" can be selected for the antenna, and the antenna selection indication information 3 can be described as an example for convenience of description.
  • the antenna selection indication information 3 can be used to indicate that the physical antenna with the physical antenna port 3 in the x physical antennas of the terminal device is the transmitting antenna.
  • the antenna selection indication information 3 may be used to indicate a port group 3 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 3 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the indication information of the designated bit in the DCI and the CRC mask of the DCI may also be the antenna selection indication information.
  • the terminal device may receive the DCI from the network device, and determine the antenna selection indication information according to the 1 bit indication information in the DCI and the CRC mask of the DCI, and select two of the x physical antennas configured according to the antenna selection indication information. Sending an antenna, or selecting an antenna group and using two physical antennas in the antenna group as a transmitting antenna.
  • the above x may be 4 or 8, etc., and is not limited herein.
  • the network device may use the antenna selection mask (ie, the CRC mask of the DCI) and the indication information of the specified bit in the DCI as the antenna selection indication information of the transmitting antenna of the terminal device, by sending the DCI to the terminal device.
  • the antenna selection indication information is sent to the terminal device.
  • the terminal device can receive the DCI from the network device, and can determine the antenna selection indication information by using the CRC mask of the DCI and the indication information of the specified bit in the DCI, and selecting the antenna indicated by the antenna selection indication information as the transmitting antenna, which can support different capabilities.
  • the selection of the transmitting antenna of the different terminal devices increases the transmission form of the antenna selection indication information of the transmitting antenna of the terminal device, and improves the processing flexibility of the antenna selection indication information of the terminal device.
  • the antenna selection indication information of the terminal device may be a subframe parity number and/or a slot parity number of the DCI and a CRC mask of the DCI where the DCI sent by the network device to the terminal device.
  • the subframe parity number and/or the slot parity number in which the DCI is located may be identifier information used to identify a time domain occupied by the DCI.
  • the identifier information of the time domain occupied by the DCI can be used to identify the antenna selection indication information corresponding to the DCI.
  • the parity of the subframe in which the DCI is located is used as the identification information of the time domain occupied by the DCI
  • the antenna selection indication information is represented by the parity number of the subframe in which the DCI is located.
  • the correspondence between the antenna selection indication information jointly represented by the subframe parity number of the DCI and the CRC mask of the DCI and the one or more first antennas of the terminal device may be specified by a communication protocol, or may be configured by the network device. This is not a limitation.
  • the network device may send the DCI after the scrambling using the CRC mask corresponding to the one of the multiple antennas to the terminal device in a subframe corresponding to one or more antennas used by the terminal device for uplink transmission, by carrying the DCI
  • the parity number of the subframe (ie, the subframe identification information) and the CRC mask of the DCI indicate the antenna selection mode of the transmitting antenna of the terminal device.
  • the subframe parity number carrying the DCI and the CRC mask of the DCI are antenna selection indication information indicating that the terminal device performs transmission antenna selection.
  • the terminal device receives the DCI from the network device, so that it can be determined whether the subframe carrying the DCI is an odd-numbered subframe or an even-numbered subframe.
  • the terminal device may also obtain the CRC mask in the DCI, and further determine the antenna selection mode of the transmitting antenna in combination with the odd-numbered or even-numbered characteristics of the determined subframe. Assuming that the terminal device supports 1TxR, the antenna selection indication information that the terminal device selects one physical antenna from its x physical antennas as the transmitting antenna may be determined by the subframe parity number of the subframe in which the DCI is transmitted by the network device and the CRC mask of the DCI. . Or the terminal device selects one antenna group from the plurality of antenna groups to which the x physical antennas belong, and selects one of the one or more physical antennas included in the antenna group as the antenna selection indication information of the transmitting antenna. The subframe parity number of the subframe in which the DCI is transmitted by the network device and the CRC mask of the DCI are jointly determined.
  • the antenna selection indication information of the transmitting antenna of the terminal device may be a CRC mask in the DCI and a parity number of the subframe in which the DCI is located when the network device sends the DCI to the terminal device.
  • the DCI CRC mask is ⁇ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0> and the subframe number of the subframe in which the DCI is located The odd number may be used to select the indication information for the antenna, and the antenna selection indication information 0 may be described as an example for convenience of description.
  • the antenna selection indication information 0 may be used to indicate that the physical antenna with the physical antenna port of the x physical antennas of the terminal device is 0 is a transmitting antenna. And/or, the antenna selection indication information 0 may be used to indicate port group 0 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 0 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the CRC mask of the DCI is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1> and the sub-frame of the DCI is located.
  • the frame number is an even number, which can be an antenna selection indication information.
  • the antenna selection indication information 1 can be described as an example.
  • the antenna selection indication information 1 may be used to indicate that the physical antenna with the physical antenna port of the x physical antennas of the terminal device is 1 is a transmitting antenna.
  • the antenna selection indication information 1 may be used to indicate port group1 of the plurality of antenna groups obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group1 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the CRC mask of the DCI is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0> and the sub-frame of the DCI is located.
  • the frame number is an odd number, which may be an antenna selection indication information, and the antenna selection indication information 2 may be described as an example for convenience of description.
  • the antenna selection indication information 2 may be used to indicate that the physical antenna of the x physical antennas of the terminal device has a physical antenna port of 2 as a transmitting antenna.
  • the antenna selection indication information 2 may be used to indicate port group 2 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 2 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the CRC mask of the DCI is ⁇ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1> and the sub-frame of the DCI is located.
  • the frame number is an even number, which can be an antenna selection indication information.
  • the antenna selection indication information 3 can be described as an example.
  • the antenna selection indication information 3 can be used to indicate that the physical antenna with the physical antenna port 3 in the x physical antennas of the terminal device is the transmitting antenna.
  • the antenna selection indication information 3 may be used to indicate a port group 3 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 3 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the subframe parity number in which the DCI is located and the CRC mask of the DCI may also be antenna selection indication information.
  • the terminal device may receive the DCI from the network device, and determine the antenna selection indication information of the transmitting antenna according to the parity number of the subframe and the CRC mask of the DCI, and select, according to the antenna selection indication signal, the x physical antennas configured by the antenna.
  • the two antennas are used as the transmitting antennas, or one antenna group is selected, and the two physical antennas in the antenna group are used as the transmitting antennas.
  • the above x may be 4 or 8, etc., and is not limited herein.
  • the network device may indicate the antenna selection mode of the transmitting antenna to the terminal device by using an antenna selection mask (ie, a CRC mask of the DCI) and a parity number characteristic of the subframe used by the DCI transmitted to the terminal device,
  • the terminal device may obtain the antenna selection indication information by using the CRC mask of the DCI and the parity number characteristic of the subframe in which the DCI received from the network device is located, and use the antenna indicated by the antenna selection indication information as the transmitting antenna.
  • the embodiment of the present application can support the selection of the transmitting antennas of different terminal devices with different capabilities, increase the transmission form of the antenna selection indication information of the transmitting antenna of the terminal device, and improve the processing flexibility of the antenna selection indication information of the terminal device.
  • the indication of the antenna selection mode is difficult to implement, and the data processing amount is small, thereby improving the data processing quality of the terminal device.
  • the antenna selection indication information of the terminal device may also be jointly characterized according to the indication information of the specified bit in the DCI sent by the network device to the terminal device and the subframe parity number in which the DCI is located.
  • the mapping between the indication information of the specified bit in the DCI and the parity identifier of the subframe in which the DCI is located and the one or more first antennas of the terminal device may be specified by a communication protocol, or may be configured by a network device. There is no limit here.
  • the network device may send the DCI including the indication information corresponding to the specified bit of the one of the multiple antennas to the terminal device in a subframe corresponding to the one or more antennas used by the terminal device for uplink transmission, by using the subframe carrying the DCI
  • the parity-numbered subframe identification information and the indication information of the designated bit in the DCI collectively indicate to the terminal device the antenna selection mode of the transmission antenna of the terminal device.
  • the subframe parity number carrying the DCI and the indication information of the designated bit in the DCI may be antenna selection indication information.
  • the terminal device receives the DCI from the network device, so that it can be determined whether the subframe carrying the DCI is an odd-numbered subframe or an even-numbered subframe.
  • the terminal device may also obtain the indication information of the specified bit in the DCI, and further determine the antenna selection mode of the transmitting antenna according to the odd-numbered or even-numbered characteristics of the determined subframe. Assuming that the terminal device supports 1TxR, the terminal device selects one physical antenna from its x physical antennas as the antenna selection indication information of the transmitting antenna, and the 1-bit indication information in the DCI and the sub-frame parity number of the DCI that can be transmitted by the network device. The frame identification information is determined together. Or the terminal device selects one antenna group from the plurality of antenna groups to which the x physical antennas belong, and selects one of the one or more physical antennas included in the antenna group as the antenna selection indication information of the transmitting antenna. The subframe parity number of the subframe in which the DCI is transmitted by the network device and the indication information of the 1-bit of the DCI are jointly determined.
  • the antenna selection indication information of the transmitting antenna of the terminal device may be jointly confirmed according to the 1-bit indication information in the DCI and the parity number of the subframe in which the DCI is sent by the network device to the terminal device.
  • the indication information of the 1 bit in the DCI is "0"
  • the subframe number of the subframe in which the DCI is located is an odd number, which may be an antenna selection indication information.
  • the antenna selection indication information 0 may be described as an example.
  • the antenna selection indication information 0 may be used to indicate that the physical antenna with the physical antenna port of the x physical antennas of the terminal device is 0 is a transmitting antenna.
  • the antenna selection indication information 0 may be used to indicate port group 0 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 0 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the indication information of the 1 bit in the DCI is “0”, and the subframe number of the subframe in which the DCI is located is an even number, which may be an antenna selection indication information.
  • the antenna selection indication information 1 may be used as an example for description.
  • the antenna selection indication information 1 may be used to indicate that the physical antenna with the physical antenna port of the x physical antennas of the terminal device is 1 is a transmitting antenna.
  • the antenna selection indication information 1 may be used to indicate port group1 of the plurality of antenna groups obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group1 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the indication information of the 1 bit in the DCI is “1”, and the subframe number of the subframe in which the DCI is located is an odd number, which may be an antenna selection indication information.
  • the antenna selection indication information 2 may be used as an example for description.
  • the antenna selection indication information 2 may be used to indicate that the physical antenna of the x physical antennas of the terminal device has a physical antenna port of 2 as a transmitting antenna.
  • the antenna selection indication information 2 may be used to indicate port group 2 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 2 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the indication information of the 1 bit in the DCI is “1”, and the subframe number of the subframe in which the DCI is located is an even number, which may be an antenna selection indication information.
  • the antenna selection indication information 3 may be used as an example for description.
  • the antenna selection indication information 3 can be used to indicate that the physical antenna with the physical antenna port 3 in the x physical antennas of the terminal device is the transmitting antenna.
  • the antenna selection indication information 3 may be used to indicate a port group 3 of the plurality of antenna packets obtained by dividing the x physical antennas of the terminal device, and further one or more physical entities included in the port group 3 may be Any one of the antennas is determined to be a transmitting antenna for transmitting information to the network device.
  • the indication information of 1 bit in the DCI may be “0” and the subframe number of the subframe where the DCI is located is odd numbered as antenna selection indication information 0, and 1 bit in DCI.
  • the indication information of the subframe is "0”, and the subframe number of the subframe in which the DCI is located is an even number for the antenna selection indication information 1.
  • the indication information of the 1-bit in the DCI is "1" and the subframe number of the subframe in which the DCI is located is an odd number.
  • the antenna selection indication information 2 the indication information of the 1 bit in the DCI is "1" and the subframe number of the subframe in which the DCI is located is the even number is the antenna selection indication information 3, and the antenna selection indication information 0, 1, 2 and 3 respectively indicate two physical antenna ports or one physical antenna group of the terminal device.
  • the antenna selection indication information 0, 1, 2, and 3 may respectively represent physical antenna groups 0, 1, 2, and 3 of the enabled terminal device, that is, port group 0, port group 1, port group 2, and port group 3.
  • the above x may be 4 or 8, etc., and is not limited herein.
  • the network device may indicate the antenna selection mode of the transmitting antenna to the terminal device by using the indication information of the specified bit in the DCI and the parity number characteristic of the subframe used by the DCI transmitted to the terminal device, where the terminal device can be in the DCI.
  • the antenna selection instruction information is obtained by specifying the bit indication information and the parity number characteristic of the subframe in which the DCI is received from the network device, and the antenna indicated by the antenna selection indication information is used as the transmission antenna.
  • the embodiment of the present application can support the selection of the transmitting antennas of different terminal devices with different capabilities, increase the transmission form of the antenna selection indication information of the transmitting antenna of the terminal device, and improve the diversity of the processing manner of the antenna selection indication information of the terminal device.
  • the terminal device selects one or more antennas to send information to the network device according to the antenna selection indication information.
  • the information may be sent to the network device based on the selected sending antenna.
  • the information that the terminal device sends to the network device may be one or more of the PUSCH data, the PUCCH, and the SRS, and may be determined according to the actual application scenario, and is not limited herein.
  • the terminal device when the physical antennas configured by the terminal device are three or four or more, and the terminal device can only support the transmission of one or more physical antennas, the terminal device can pass through the network device.
  • the antenna selection indication information of the multiple representations of the transmission is selected from the plurality of physical antennas configured by the network as the transmission antenna, and the transmission antenna is sent to the network device according to the transmission antenna indicated by the antenna selection indication information sent by the network device.
  • the closed-loop antenna selection of the terminal device is realized, thereby ensuring the reliability of the uplink information transmission of the terminal device and enhancing the data transmission reliability of the communication system.
  • FIG. 5 is another schematic flowchart of an antenna selection method according to an embodiment of the present application.
  • the method provided by the embodiment of the present application may include the following steps:
  • the network device generates downlink control information DCI.
  • the network device sends the DCI to the terminal device.
  • the network device may determine an antenna selection manner of the terminal device according to the capability information of the terminal device or an uplink transmission mode, determine antenna selection indication information according to an antenna selection manner of the terminal device, and generate the antenna. Select the DCI of the indication. For details, refer to the implementations provided in step S301 to step S302 in the foregoing embodiment, and details are not described herein again.
  • the antenna selection indication information corresponding to the DCI is bit information included in the DCI.
  • the network device may send the DCI to the terminal device, and use the bit information included in the DCI to instruct the terminal device to select one or more first antennas for uplink transmission from among a plurality of physical antennas supported by the terminal device.
  • the correspondence between the bit information of the bit field included in the DCI and the one or more first antennas is specified by a communication protocol or configured by the network device based on multiple antennas of the terminal device. For details, refer to the implementation manners provided in the foregoing implementation manner 2, and details are not described herein again.
  • the network device may determine an antenna selection manner of the terminal device according to the capability information of the terminal device or the uplink transmission mode, and determine the antenna selection indication information according to the antenna selection manner of the terminal device.
  • the antenna selection indication information is a CRC mask used to scramble the DCI.
  • the network device may scramble the DCI using the CRC corresponding to the one or more first antennas used by the terminal device for uplink transmission to obtain the scrambled DCI, and send the scrambled DCI to the terminal device.
  • the CRC mask of the scrambled DCI indicates that the terminal device selects one or more first antennas for uplink transmission from among a plurality of physical antennas supported by the terminal device.
  • the correspondence between the CRC mask of the DCI and the one or more first antennas is specified by a communication protocol or configured by the network device based on multiple antennas of the terminal device.
  • the network device may determine an antenna selection manner of the terminal device according to the capability information of the terminal device or the uplink transmission mode, and determine the antenna selection indication information according to the antenna selection manner of the terminal device.
  • the antenna selection indication information is used to indicate a time domain occupied by the DCI, including a subframe occupied by the DCI or a time slot occupied by the DCI.
  • the network device may send the DCI to the terminal device in a time domain corresponding to one or more antennas used by the terminal device for uplink transmission, and indicate the terminal device by using the identifier information of the time domain such as the subframe number or the slot number occupied by the DCI.
  • One or more first antennas for uplink transmission are selected from among a plurality of supported physical antennas.
  • the correspondence between the identifier information of the time domain occupied by the DCI and the one or more first antennas is specified by a communication protocol or configured by the network device based on multiple antennas of the terminal device. For details, refer to the implementation manners provided in the foregoing implementation manners 4 or 5, and details are not described herein again.
  • the network device may use the implementation manner of any one or more of the foregoing implementation manners to indicate to the terminal device one or more first antennas for uplink transmission.
  • the network device may use the implementation manner of any one or more of the foregoing implementation manners to indicate to the terminal device one or more first antennas for uplink transmission.
  • the terminal device acquires antenna selection indication information corresponding to the DCI.
  • the terminal device sends information to the network device by using one or more antennas indicated by the antenna selection indication information.
  • the network device sends the DCI to the terminal device, where the terminal device may receive the DCI from the network device, and obtain the day selection indication information corresponding to the DCI, and further may be one or more indicated by the antenna selection indication information.
  • the antenna sends information to the network device.
  • the terminal device when the physical antennas configured by the terminal device are three or four or more, and the terminal device can only support the transmission of one or more physical antennas, the terminal device can pass through the network device.
  • the antenna selection indication information of the multiple representations of the transmission is selected from the plurality of physical antennas configured by the network as the transmission antenna, and the transmission antenna is sent to the network device according to the transmission antenna indicated by the antenna selection indication information sent by the network device.
  • the closed-loop antenna selection of the terminal device is realized, thereby ensuring the reliability of the uplink information transmission of the terminal device and enhancing the data transmission reliability of the communication system.
  • FIG. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication device 60 provided by the embodiment of the present application includes a processor 601, a memory 602, a transceiver 603, and a bus system 604.
  • the processor 601, the memory 602 and the transceiver 603 are connected by a bus system 604.
  • the above memory 602 is used to store programs.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 602 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or Portable disc read-only memory (CD-ROM). Only one memory is shown in Fig. 6, and of course, the memory can be set to a plurality as needed.
  • the memory 602 may also be a memory in the processor 601, which is not limited herein.
  • Memory 602 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the processor 601 controls the operation of the communication device 60.
  • the processor 601 may be one or more central processing units (CPUs).
  • CPUs central processing units
  • the CPU may be a single-core CPU. It can also be a multi-core CPU.
  • bus system 604 which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 604 may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 604 may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 604 for clarity of description, various buses are labeled as bus system 604 in FIG. For ease of representation, only the schematic drawing is shown in FIG.
  • Processor 601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 601 or an instruction in a form of software.
  • the processor 601 may be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602, and performs the method steps of the terminal device described in FIG. 4 or FIG. 5 together with the hardware thereof, or performs the method steps of the terminal device in combination with the hardware thereof; Figure 5, or method steps of the network device described in the various embodiments above.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the terminal device provided by the embodiment of the present application includes a processor 701, a memory 702, a user interface 703, a communication interface 704, a coupler 705, and an antenna 706.
  • the memory 702 described above may correspond to the memory 602 of the communication device 60 shown in FIG.
  • the above memory 702 is used to store programs.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 702 includes, but is not limited to, a RAM, a ROM, an EPROM, or a CD-ROM, etc., and is not limited herein.
  • the foregoing memory 702 may also be a memory in the processor 701, which is not limited herein.
  • the memory 702 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the above processor 701 controls the operation of the terminal device, and the processor 701 may be one or more CPUs.
  • the method of the terminal device disclosed in the foregoing embodiment of the present application, as shown in FIG. 4 or FIG. 5, or the foregoing various embodiments may be applied to the processor 701 or implemented by the processor 701.
  • Processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in a form of software.
  • the processor 701 described above may be a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and performs the method steps of the terminal device described in FIG. 4 or FIG. 5 together with the hardware thereof, or the above-described various embodiments.
  • the user interface 703 of the terminal device is mainly used for providing an input interface for the user, and acquiring data input by the user.
  • the user interface 703 may include a multimedia input and/or output device 7031, a camera 7032, a display 7033, and the like, which are not limited herein.
  • the user interface 703 may be an information input and/or output module that interacts with a user of the terminal device, such as a microphone and/or a speaker of a terminal device such as a mobile phone, a front and/or rear camera, and a touch screen, etc. Make restrictions.
  • the user interface 703 may also include a standard wired interface, a wireless interface, and the like, which are not limited herein.
  • the processor 701 of the terminal device can be coupled to an input device such as the antenna 706 through one or more communication interfaces 704 and the coupler 705, and perform the terminal device described in FIG. 4 or FIG. 5 in combination with other functional modules.
  • an input device such as the antenna 706
  • the coupler 705 performs the terminal device described in FIG. 4 or FIG. 5 in combination with other functional modules.
  • Coupled herein means that two components are bonded directly or indirectly to each other. This combination may be fixed or movable, which may allow for the transfer of fluid, electrical, electrical or other types of signals between the two components.
  • the terminal device may include Each function module, such as the processor 701, selects a plurality of physical antenna selection indication information received by the function module, such as the antenna 706, from the network device, and selects a corresponding physical antenna as a transmission antenna from the plurality of physical antennas configured by the network device, and is based on the network device.
  • the transmitting antenna indicated by the delivered antenna selection indication information sends information to the network device, and the closed-loop antenna selection of the terminal device is implemented, thereby ensuring the reliability of the uplink information transmission of the terminal device and enhancing the data transmission reliability of the communication system.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device provided by the embodiment of the present application includes a processor 801, a memory 802, a reflector 803, a receiver 804, a network interface 807, and the like.
  • the functional modules such as the processor 801, the transmitter 803, and the receiver 804 may be coupled to an input device such as an antenna 806 through a coupler 805.
  • the implementation of the network device described in the foregoing embodiments may be performed by the processor 801, and the implementation manners of the foregoing embodiments are not limited.
  • "Coupled" herein means that two components are bonded directly or indirectly to each other. This combination may be fixed or movable, which may allow for the transfer of fluid, electrical, electrical or other types of signals between the two components.
  • the memory 802 may correspond to the memory 602 of the communication device 60 shown in FIG. 6.
  • the above memory 802 is used to store programs.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 802 includes, but is not limited to, a RAM, a ROM, an EPROM, or a CD-ROM, etc., and is not limited herein.
  • the foregoing memory 802 may also be a memory in the processor 801, which is not limited herein.
  • Memory 802 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the processor 801 controls the operation of the network device, and the processor 801 can be one or more CPUs.
  • the method of the network device disclosed in FIG. 4 or FIG. 5 or the foregoing embodiments disclosed in the foregoing application may be applied to the processor 801 or implemented by the processor 801.
  • Processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 801 or an instruction in a form of software.
  • the processor 801 described above may be a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and performs the method steps of the network device described in connection with FIG. 4 or FIG. 5, or the various embodiments described above, in conjunction with its hardware.
  • the network interface 807 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface), and the like, and is not limited herein.
  • the network device may be configured by three or four or more physical antennas configured by the terminal device, and the terminal device can only support one or more physical antennas of the terminal device, according to the terminal device.
  • the supported antenna selection manner configures antenna selection indication information corresponding to one or more antennas used by the terminal device for uplink transmission, and sends the information to the terminal device.
  • the antenna selection indication information of the multiple representations received by the terminal device from the network device selects a corresponding physical antenna as the transmitting antenna from the plurality of physical antennas configured by the network device, and is based on the transmitting antenna indicated by the antenna selection indication information sent by the network device.
  • Sending information to the network device realizes closed-loop antenna selection of the terminal device, thereby ensuring reliability of uplink information transmission of the terminal device and enhancing data transmission reliability of the communication system.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions, when the instruction is run on the terminal device, causing the terminal device to perform the above FIG. 4 or FIG. 5, or the foregoing implementations.
  • the computer readable storage medium stores instructions, when the instruction is run on the terminal device, causing the terminal device to perform the above FIG. 4 or FIG. 5, or the foregoing implementations.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions, when the instruction is run on a network device, causing the network device to perform the foregoing FIG. 4 or FIG. 5, or the foregoing implementations.
  • the network device described in the example refer to the implementation manners provided in the foregoing embodiments, and details are not described herein again.
  • An embodiment of the present application provides an antenna selection system, where the antenna selection system includes a processor for coupling with a memory, reading and running instructions in the memory to support the terminal device to implement the foregoing FIG. 4 or FIG. 5, or the foregoing
  • the implementation performed by the terminal device described in each embodiment for example, generates or processes information related to the terminal device in the foregoing embodiments.
  • the antenna selection system further includes a memory for storing program instructions and data necessary for the terminal device.
  • the antenna selection system can be composed of a chip, and can also include a chip and other discrete devices.
  • An embodiment of the present application provides an antenna selection system, where the antenna selection system includes a processor for coupling with a memory, reading and running instructions in the memory to support the network device to implement the foregoing FIG. 4 or FIG. 5, or the foregoing
  • the implementations performed by the network devices described in the various embodiments for example, generate or process information related to the network devices in the above embodiments.
  • the antenna selection system further includes a memory for storing program instructions and data necessary for the network device.
  • the antenna selection system can be composed of a chip, and can also include a chip and other discrete devices.
  • the embodiment of the present application further provides a computer program product including instructions, when the computer program product is run on a terminal device, causing the terminal device to perform the above-mentioned FIG. 4 or FIG. 5, or the terminal device described in each of the foregoing embodiments.
  • the embodiment of the present application further provides a computer program product comprising instructions, when the computer program product is run on a network device, causing the network device to perform the above-mentioned FIG. 4 or FIG. 5, or the network device described in each of the foregoing embodiments.
  • the program can be stored in a computer readable storage medium, when the program is executed
  • the flow of the method embodiments as described above may be included.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM or a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请实施例提供了一种天线选择的方法及相关装置,该方法包括:从网络设备接收下行控制信息DCI;获取该DCI对应的天线选择指示信息,其中,该天线选择指示信息用于指示终端设备的至少三根天线中的一根或多根第一天线;通过上述一根或多根第一天线向所述网络设备发送信息。其中,DCI对应的天线选择指示信息通过以下一项或者多项表征:DCI包括的比特信息;DCI的循环冗余校验校验CRC掩码;以及DCI所占用的时域的标识信息。采用本申请实施例,具有可支持具备多根收发天线的终端设备的发送天线选择,可提高终端设备与网络设备的通信质量,增强终端设备数据传输的可靠性的优点。本实施例提供的方法可以应用于通信系统,例如V2X、LTE-V、V2V、车联网、MTC、 IoT、LTE-M,M2M,物联网等。

Description

天线选择的方法及相关装置 技术领域
本申请涉及通信技术领域,尤其涉及一种天线选择的方法及相关装置。
背景技术
在长期演进(long term evaluation,LTE)技术中,终端设备和网络设备之间可利用天线进行数据传输。例如,终端设备可配置一个或者多个天线射频(radio frequency,RF)链(chain),其中,一个RF链可对应两根物理天线。此时,对于终端设备而言,两根物理天线均可作为用于接收数据的接收天线,即终端设备的两根物理天线可映射为2R(R表示receive,接收)的逻辑接收天线。然而,由于终端设备的能力有限,当终端设备只能支持一根逻辑天线的数据发送时,终端设备需要在两根物理天线中选择一根物理天线映射为1T(T表示transmit,发射)的逻辑发送天线。当终端设备支持1T2R时,终端设备UE向网络设备发送信息时需要从其配置的两根物理天线中选择一根物理天线作为发送天线进行信息发送。
现有技术中,当UE配置有四根或者更多的物理天线时,UE可支持1T4R或者2T4R或者1T8R等,但现有技术只支持1T2R的上行数据传输的发送天线选择。当UE具备更多天线时,现有技术无法支持UE 1T4R或者2T4R或者1T8R等更多天线的上行数据传输的发送天线选择。由于UE的不同发送天线之间的信干燥比(signal to inference plus noise ratio,SINR)差异较大,不同接收天线之间的SINR也有所差异,而现有技术无法支持配置有多收发天线的UE的上行数据传输的发送天线选择,进而无法利用不同的天线之间的信道差异来获得分集增益,性能损耗大。
发明内容
本申请提供了一种天线选择的方法及相关装置,可支持具备多根收发天线的终端设备的发送天线选择,可提高终端设备与网络设备的通信质量,增强终端设备数据传输的可靠性,适用性更强。
第一方面,本申请实施例提供的一种天线选择的方法,该方法可应用于终端设备侧。该方法包括:从网络设备接收下行控制信息DCI,获取该DCI对应的天线选择指示信息,该天线选择指示信息用于指示终端设备的至少三根天线中的一根或多根第一天线。这里第一天线可表示用于上行传输的物理天线,换句话,第一天线是终端设备向网络设备发送上行信息的天线。终端设备可通过天线选择指示信息所指示的一根或多根第一天线向网络设备发送信息。在本申请实施例中,终端设备可从网络设备接收DCI,根据DCI对应的天线选择指示信息确定用于上行传输的一根或者多根天线,可实现从终端设备具备的三根或者更多的天线中选择一根或者多根天线用于上行传输的天线选择,进而可利用不同天线之间的信道差异获得分集增益,可提高终端设备与网络设备的通信质量,增强终端设备数据传输的可靠性。
结合第一方面,在一种可能的实现方式中,上述DCI对应的天线选择指示信息通过以下一项或者多项表征:DCI包括的比特信息,DCI的循环冗余校验校验CRC掩码,以及DCI所占用的时域的标识信息。这里可以理解,DCI包括的比特信息可以为DCI中特定比特(或称指定比特)的比特值。DCI的CRC掩码是用于对DCI的CRC进行加扰的掩码。DCI所占用的时域的标识信息可以是承载DCI的子帧和/或时隙的标识信息,比如承载DCI的子帧和/或时隙的奇偶编号等。在本申请实施例中,DCI对应的天线选择指示信息可通过上述任一项表征,也可以是上述任意多项的组合,比如DCI对应的天线选择指示信息可以是DCI包括的比特信息和DCI的CRC掩码等,在此不做限制。在本申请实施例中,DCI对应的天线选择指示信息可通过多种表现形式的信息表征,实现方式多样,操作灵活,适用范围更大。
结合第一方面,在一种可能的实现方式中,上述DCI包括的比特信息可以为与上述用于上行传输的一根或者多根第一天线对应的比特值。换句话说,通过DCI中特定比特的指示信息(或称比特值)可表征DCI对应的天线选择指示信息,DCI中特定比特的不同取值可作为指示不同的一根或者多根物理天线的天线选择指示信息。DCI中特定比特的指示信息与用于上行传输的一根或者多根第一天线(即一根或者多根物理天线)的物理天线端口的对应关系可由通信协议规定,也可由网络设备配置。上述DCI的CRC掩码为与上述用于上行传输的一根或者多根第一天线对应的掩码。换句话说,用于上行传输的一根或者多根第一天线均可对应一个或者多个掩码,通过该掩码对DCI的CRC进行加扰之后向终端设备发送加扰后的DCI。加扰后的DCI中对应的天线选择指示信息则为这一根或者多根第一天线对应的掩码,终端设备通过加扰后的DCI中对应于各物理天线的掩码可从多根物理天线中确定出用于上行传输的一根或者多根第一天线,进而可通过第一天线向网络设备发送信息。其中,一组掩码可对应指示一根物理天线的物理天线端口。上述天线选择掩码与发送天线选择的物理天线端口的对应关系可由通信协议规定,也可由网络设备配置。上述DCI所占用的时域的标识信息满足与上述用于上行传输的一根或者多根第一天线对应的时域标识信息。换句话说,上述DCI所占用的时域的标识信息为网络设备向终端设备发送的DCI所在的子帧的奇偶编号和/或DCI所在时隙的奇偶编号。上述DCI所在的子帧的奇偶编号和/或DCI所在时隙的奇偶编号可与DCI的CRC掩码和/或DCI中特定比特的比特信息共同表征天线选择指示信息,以向终端设备指示用于上行传输的一根或者多根第一天线。上述DCI所在的子帧奇偶编号(和/或时隙奇偶编号)和DCI的CRC掩码(和/或DCI中特定比特的比特信息)共同表征的天线选择指示信息与终端设备的一根或多根第一天线的对应关系可由通信协议规定,也可由网络设备配置。
在本申请实施例中,用于上行传输的一根或者多根第一天线可由DCI中包括的特定比特的比特信息指示,其中,DCI中特定比特的不同取值可指示不同的物理天线。可选的,用于上行传输的一根或者多根第一天线可由DCI的CRC掩码指示,不同的掩码可对应指示不同的物理天线。可选的,用于上行传输的一根或者多根第一天线可由DCI中特定比特的指示信息和DCI的CRC掩码共同指示,DCI中特定不同的不同取值与DCI中不同的CRC掩码的不同组合可用于指示不同的物理天线。可选的,用于上行传输的一根或者多根第一天线可由DCI所在的子帧奇偶编号和/或时隙奇偶编号和DCI的CRC掩码共同表示。DCI 所在的子帧的奇偶编号不同和/或时隙的奇偶编号不同,与DCI的不同CRC掩码的不同组合可用于指示不同的物理天线。可选的,用于上行传输的一根或者多根第一天线可由DCI中指定比特的指示信息和DCI所在的子帧奇偶编号和/或时隙奇偶编号共同表示。DCI中指定比特的不同取值与DCI所在的子帧的不同奇偶编号和/或时隙的不同奇偶编号的不同组合可用于指示不同的物理天线。
结合第一方面,在一种可能实现方式中,终端设备的至少三根天线属于至少两个天线分组,对应的,上述天线选择指示信息用于指示上述至少两个天线分组中的第一天线分组。这里可以理解,第一天线分组中包括一根或者多根天线则为上述天线选择指示信息所指示的一根或多根第一天线。终端设备的物理天线进行分组以得到多个天线分组之后,也可通过DCI的CRC掩码、DCI中特定比特的比特信息以及DCI所占用的时域的标识信息中的一种或者多种指示终端设备的天线分组,进而可将该天线分组中包括的天线确定为第一天线,操作简单,增加了终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息的表现形式,增强了终端设备的天线选择的指示方式的多样性。其中,DCI的不同的CRC掩码、DCI中特定比特的不同取值以及DCI所占用的不同时域对应的不同标识信息等信息不同组合可用于指示不同的天线分组。例如,一组掩码可对应指示一个天线分组,上述天线选择掩码与天线分组的对应关系可由通信协议规定。DCI中特定比特的不同取值所表示天线选择指示信息也可用于指示终端设备的不同天线分组,DCI中特定比特的取值与第一天线分组的对应关系由通信协议规定或者从网络设备接收。DCI的不同掩码和DCI中特定比特的不同取值的不同组合可用于指示不同的天线分组。在本申请实施例中,用于指示终端设备的天线分组对应的天线选择指示信息的表征方式多样,增加了终端设备的天线分组的指示方式的多样性。
结合第一方面,在一种可能的实施方式中,上述天线选择指示信息与第一天线分组的对应关系由通信协议规定或者从网络设备接收。
结合第一方面,在一种可能的实施方式中,上述终端设备的至少两个天线分组可由通信协议规定。这里可以理解,终端设备的至少三根物理天线可通过通信协议规定的方式划分为至少两个天线分组,一个天线分组中可包括一根或者多根物理天线。
结合第一方面,在一种可能的实施方式中,终端设备从网络设备接收第一指示信息,该第一指示信息用于指示至少两个天线分组。终端设备可根据从网络设备接收的第一指示信息确定至少三根物理天线划分为一个或者多个天线分组的分组方式,进而可将其多根物理天线划分为至少两个天线分组,一个天线分组中可包括一根或者多根物理天线。
结合第一方面,在一种可能的实施方式中,终端设备从网络设备接收无线资源控制RRC信令,该RRC信令包括上述第一指示信息;或者,从网络设备接收媒体访问控制控制元素MAC CE信令,该MAC CE信令包括上述第一指示信息。第一指示信息的获取方式多样,操作更灵活。
结合第一方面,在一种可能的实施方式中,终端设备可向所述网络设备发送第二指示信息,第二指示信息用于指示终端设备至少三根物理天线划分为至少两个天线分组,还可用于指示至少两个天线分组中各天线分组包括的一根或者多根天线。
结合第一方面,在一种可能的实施方式中,终端设备可向网络设备上报能力信息,能 力信息用于指示终端设备支持从至少三根天线中选择一根或多根天线。换句话说,上述能力信息用于指示终端设备支持1T4R、2T4R、1T8R以及2T8R中的一种或者多种。在本申请实施例中,终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息可基于终端设备上报的能力信息确定,进而可增强终端设备的上行传输天线选择的可靠性。
结合第一方面,在一种可能的实施方式中,天线选择指示信息基于终端设备的上行传输模式的。在本申请实施例中,终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息可基于终端设备的上行传输模式确定,可增强终端设备的上行传输天线选择的可靠性,提高了终端设备数据传输的可靠性。
结合第一方面,在一种可能的实施方式中,上述天线选择指示信息与一根或多根第一天线的对应关系是通信协议规定的或者是从网络设备接收的。
第二方面,本申请实施例提供的一种天线选择的方法,该方法可应用于网络设备侧。该方法包括:生成下行控制信息DCI,向终端设备发送该DCI。其中,该DCI对应的天线选择指示信息用于指示终端设备的至少三根天线中用于上行传输的的一根或者多根第一天线。
结合第二方面,在一种可能的实施方式中,DCI对应的天线选择指示信息通过以下一项或者多项表征:DCI包括的比特信息;DCI的循环冗余校验校验CRC掩码;以及DCI所占用的时域的标识信息。上述DCI包括的比特信息为与用于上行传输的一根或者多根第一天线对应的比特值;或者上述DCI的CRC掩码为与用于上行传输的一根或者多根第一天线对应的掩码;上述DCI所占用的时域的标识信息满足与用于上行传输的一根或者多根第一天线对应的时域标识信息。
结合第二方面,在一种可能的实施方式中,上述DCI对应的天线选择指示信息通过DCI包括的比特信息表征;网络设备可确定天线选择指示信息,生成包含该天线选择指示信息的DCI,并向终端设备发送该DCI。其中,上述DCI对应的天线选择指示信息为DCI包括的比特信息。其中,上述DCI包括的比特域的比特信息与一根或者多根第一天线的对应关系可由通信协议规定或者基于终端设备的至少三根天线配置。
结合第二方面,在一种可能的实施方式中,上述DCI对应的天线选择指示信息通过DCI的CRC掩码表征;网络设备可确定天线选择指示信息,该天线选择指示信息为用于对DCI进行加扰的CRC掩码。网络设备可根据该天线选择指示信息对DCI的CRC进行加扰以得到加扰后的DCI,并向终端设备发送加扰后的DCI。其中,DCI的CRC掩码与终端设备用于上行传输的一根或者多根第一天线的对应关系由通信协议规定或者基于终端设备的至少三根天线配置。
结合第二方面,在一种可能的实施方式中,上述DCI对应的天线选择指示信息通过DCI所占用的时域的标识信息表征;网络设备可确定天线选择指示信息,该天线选择指示信息用于指示DCI所占用的时域,并在该天线选择指示信息指示的时域上向终端设备发送该DCI。其中,该DCI对应的天线选择指示信息为该DCI所占用的时域的标识信息。其中,上述DCI所占用的时域的标识信息与终端设备的一根或者多根第一天线的对应关系由通信协议规定或者基于终端设备的至少三根天线配置。
结合第二方面,在一种可能的实施方式中,网络设备可根据终端设备的能力信息或者 上行传输模式确定终端设备至少三根天线中用于上行传输的一根或多跟天线,生成DCI并向终端设备发送该DCI,该DCI包括与终端设备用于上行传输的一根或多根第一天线对应的比特值。
结合第二方面,在一种可能的实施方式中,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备至少三根天线中用于上行传输的一根或多根第一天线,并使用与上述用于上行传输的一根或多跟天线对应的掩码对DCI的CRC进行加扰,向终端设备发送加扰后的DCI。
结合第二方面,在一种可能的实施方式中,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备至少三根天线中用于上行传输的一根或多根第一天线,并在第一时域向终端设备发送DCI。其中,上述第一时域满足与终端设备用于上行传输的一根或多根第一天线对应的时域标识信息。上述第一时域可为DCI所占用的子帧和/或时隙的奇偶编号,该子帧和/或时隙的奇偶编号对应于终端设备用于上行传输的一根或者多根第一天线。
结合第二方面,在一种可能的实施方式中,终端设备的至少三根天线属于至少两个天线分组,终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息用于指示上述至少两个天线分组中的第一天线分组。可以理解,第一天线分组中包括一根或者多根天线则为天线选择指示信息所指示的一根或者多根第一天线。
结合第二方面,在一种可能的实施方式中,终端设备的至少两个天线分组由通信协议规定。
结合第二方面,在一种可能的实施方式中,终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息与第一天线分组的对应关系由通信协议规定或者基于终端设备的至少两个天线分组配置。
结合第二方面,在一种可能的实施方式中,网络设备可向终端设备发送第一指示信息,该第一指示信息用于指示终端设备的至少两个天线分组。可选的,网络设备可向终端设备发送无线资源控制RRC信令,该RRC信令包括上述第一指示信息;或者,向终端设备发送媒体访问控制控制元素MAC CE信令,该MAC CE信令包括上述第一指示信息。
结合第二方面,在一种可能的实施方式中,网络设备可从终端设备接收第二指示信息,该第二指示信息用于指示终端设备的至少两个天线分组。
结合第二方面,在一种可能的实施方式中,网络设备可根据终端设备的能力信息确定终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息,该能力信息用于指示终端设备支持从至少三根天线中选择一根或多根天线的能力。
结合第二方面,在一种可能的实施方式中,网络设备可基于终端设备的上行传输模式确定终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息。换句话说,上述天线选择指示信息基于终端设备的上行传输模式的。
结合第二方面,在一种可能的实施方式中,上述终端设备的能力信息和/或上行传输模式用于指示终端设备支持1T4R、2T4R、1T8R以及2T8R中的一种或者多种。
结合第二方面,在一种可能的实施方式中,上述终端设备用于上行传输的一根或者多根第一天线的天线选择指示信息与终端设备的一根或多根第一天线的对应关系是通信协议规定的。
第三方面,本申请实施例提供了一种终端设备,该终端设备包括用于执行上述第一方面和/或第一方面的任意一种可能的实现方式所提供的天线选择的方法的单元和/或模块,因此也能实现第一方面提供的天线选择的方法所具备的有益效果(或者优点)。
第四方面,本申请实施例提供了一种网络设备,该网络设备包括用于执行上述第二方面和/或第二方面的任意一种可能的实现方式所提供的天线选择的方法的单元和/或模块,因此也能实现第二方面提供的天线选择的方法所具备的有益效果(或者优点)。
第五方面,本申请实施例提供了一种终端设备,该终端设备包括存储器、收发器和处理器;其中,该存储器、收发器和处理器通过通信总线连接。该存储器用于存储一组程序代码,该收发器和处理器用于调用该存储器中存储的程序代码执行上述第一方面和/或第一方面中任意一种可能的实现方式所提供的天线选择的方法,因此也能实现第一方面提供的天线选择的方法所具备的有益效果。
第六方面,本申请实施例提供了一种网络设备,该网络设备包括存储器、收发器和处理器;其中,该存储器、收发器和处理器通过通信总线连接。该存储器用于存储一组程序代码,该收发器和处理器用于调用该存储器中存储的程序代码执行上述第二方面和/或第二方面中任意一种可能的实现方式所提供的天线选择的方法,因此也能实现第二方面提供的天线选择的方法所具备的有益效果。
第七方面,本申请实施例提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当该指令在终端设备上运行时,使得终端设备执行上述第一方面和/或第一方面中任意一种可能的实现方式所提供的天线选择的方法,也能实现第一方面提供的天线选择的方法所具备的有益效果。
第八方面,本申请实施例提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当该指令在网络设备上运行时,使得网络设备执行上述第二方面和/或第二方面中任意一种可能的实现方式所提供的天线选择的方法,也能实现第二方面提供的天线选择的方法所具备的有益效果。
第九方面,本申请实施例提供了一种通信装置,该通信装置可以是一块芯片或多块协同工作的芯片,该通信装置中包括与通信装置(例如芯片)耦合的输入设备,用于执行本申请实施例第一方面提供的技术方案。应理解,这里“耦合”是指两个部件彼此直接或间接地结合。这种结合可以是固定的或可移动性的,这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间通信。
第十方面,本申请实施例提供了一种通信装置,该通信装置可以是一块芯片或多块协同工作的芯片,该通信装置中包括与通信装置(例如芯片)耦合的输入设备,用于执行本申请实施例第二方面提供的技术方案。应理解,这里“耦合”是指两个部件彼此直接或间接地结合。这种结合可以是固定的或可移动性的,这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间通信。
第十一方面,本申请实施例提供了一种天线选择系统,该天线选择系统包括处理器,该处理器用于与存储器耦合,读取并运行存储器中的指令以支持天线选择的装置实现上述第一方面中所涉及的功能,例如,生成或者处理上述第一方面提供的天线选择的方法中所涉及的信息。在一种可能的设计中,上述天线选择系统还包括存储器,该存储器用于保存 天线选择的装置必需的程序指令和数据。该天线选择系统可以由芯片构成,也可以包含芯片和其他分立器件。
第十二方面,本申请实施例提供了一种天线选择系统,该天线选择系统包括处理器,该处理器用于与存储器耦合,读取并运行存储器中的指令以用于支持天线选择的装置实现上述第二方面中所涉及的功能,例如,生成或者处理上述第二方面提供的天线选择的方法中所涉及的信息。在一种可能的设计中,上述天线选择系统还包括存储器,该存储器用于保存天线选择的装置必需的程序指令和数据。该天线选择系统可以由芯片构成,也可以包含芯片和其他分立器件。
第十三方面,本申请实施例提供了一种包含指令的计算机程序产品,当该计算机程序产品在终端设备上运行时,使得终端设备执行上述第一方面提供的天线选择的方法,也能实现第一方面提供的天线选择的方法所具备的有益效果。
第十四方面,本申请实施例提供了一种包含指令的计算机程序产品,当该计算机程序产品在网络设备上运行时,使得网络设备执行上述第二方面提供的天线选择的方法,也能实现第二方面提供的天线选择的方法所具备的有益效果。
附图说明
图1是本申请实施例提供的通信系统的一种基础架构示意图;
图2是本申请实施例提供的终端设备的一天线选择示意图;
图3是本申请实施例提供的终端设备的另一天线选择示意图;
图4是本申请实施例提供的天线选择方法的一流程示意图;
图5是本申请实施例提供的天线选择方法的另一流程示意图;
图6是本申请实施例提供的一种通信装置的结构示意图;
图7是本申请实施例提供的终端设备的结构示意图;
图8是本申请实施例提供的网络设备的结构示意图。
具体实施方式
下面将结合本申请中的附图,对本申请中的技术方案进行清楚、完整地描述。
本申请实施例提供的天线选择的方法(为方便描述后续可称为天线选择方法)可以适用于LTE系统,或其他采用各种无线接入技术的无线通信系统,例如采用码分多址(code division multiple access,CDMA),频分多址(frequency division multiple access,FDMA),时分多址(time division multiple access,TDMA),正交频分多址(orthogonal frequency division multiple access,OFDMA),单载波频分多址(single carrier-frequency division multiple access,SC-FDMA)等接入技术的系统。本申请实施例提供的天线选择方法也可适用于其他无线通信系统,例如后续的演进系统,如第五代无线(5 thgeneration,5G,也称新空口(New radio,NR))系统(或称NR系统)等,在此不做限制。参见图1,是本申请实施例提供的通信系统的一种基础架构示意图。本申请实施例提供的通信系统包括但不限于网络设备和终端设备,在此不做限制。其中,图1所示的网络设备和终端设备均可称之为通信装置,网络设备和终端设备均可以是一块芯片或多块协同工作的芯片,网络设备和/或终端设备中还可包括与该网络设备和/或终端设备耦合的输入设备,用于执行本申请实施例提供的天线选择方 法。具体可根据实际应用场景确定,在此不做限制。本申请实施例提供的网络设备和终端设备通过天线可以进行数据或者信令的传输,包括上行传输和下行传输。这里可以理解,上行传输可以是终端设备向网络设备发送数据或者信令,下行传输可以是网络设备向终端设备发送数据或者信令。
本申请所涉及到的终端设备可以为向用户提供语音和/或数据连通性的设备(device),包括有线终端和无线终端。无线终端可以是具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备,经无线接入网与一个或者多个核心网进行通信的移动终端。例如,无线终端可以为移动电话、计算机、平板电脑、个人数码助理(personal digital assistant,PDA)、移动互联网设备(mobile Internet device,MID)、可穿戴设备和电子书阅读器(e-book reader)等。又如,无线终端也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动设备。再如,无线终端可以为移动站(mobile station)、接入点(access point)。用户设备(user equipment,UE)即为终端设备的一种,是在LTE系统中的称谓。为方便描述,本申请后续的描述中,上面提到的设备将以终端设备为例进行说明。本申请实施例所涉及到的网络设备是一种部署在无线接入网(radio access network,RAN)中用以为终端设备提供无线通信功能的通信装置。上述网络设备可以包括各种形式的宏基站,微基站,中继站,接入点基站控制器,收发节点(transmission reception point,TRP)等等。在采用不同的无线接入技术的系统中,网络设备的具体名称可能会有所不同,例如在LTE网络中,网络设备(或者基站)称为演进的节点B(evolved nodeB,eNB),在后续的演进系统中,还可以称为新无线节点B(new radio nodeB,gNB)。为方便描述,本申请后续的描述中,上面提到的设备统称为网络设备。
本申请实施例提供的天线选择方法是基于图1所示的系统架构,在终端设备支持1T4R或者2T4R或者1T8R等应用场景中,可支持终端设备发送上行数据的闭环(close-loop)天线选择。在本申请实施例中,网络设备可基于终端设备的能力,指示终端设备的上行传输过程中具体选择哪一根或者哪几根天线作为向网络设备发送信息的发送天线。在本申请实施例中,网络设备指示终端设备所做的天线选择具体可为终端设备的物理天线的选择。即,当终端设备配置有三根、四根、八根或者更多的物理天线时,网络设备可根据终端设备所能支持的发送天线的数量,指示终端设备从其配置的多根物理天线中选择一根或者多根物理天线作为向网络设备发送信息的发送天线。在本申请实施例中,终端设备可根据网络设备的指示,从其支持的多根物理天线中选择相应的物理天线向网络设备发送信息。其中,终端设备向网络设备发送的信息可以是物理上行共享信道(physical uplink shared channel,PUSCH)数据,也可以是物理上行共享信道(physical uplink control channel,PUCCH),或者信道探测参考信号(sounding reference signal,SRS)等,在此不做限制。
参见图2,图2是本申请实施例提供的终端设备的一天线选择示意图。如图2所示,假设终端设备配置有四根物理天线,可分别标记为天线(简称TX)0、TX1、TX2和TX3。假设终端设备支持2T4R,则可配置两个RF链,其中,一个RF链可对应两根物理天线。例如,两个RF链中一个RF链可对应TX0和TX1,另一个RF链可对应TX2和TX3,该对应关系仅是示例,具体可根据实际应用场景需要确定,在此不做限制。在各RF链所对应的两根物理天线中,通过开关器件可切换RF链所连接的物理天线,进而可通过建立连 接的物理天线向网络设备发送信息。如图2所示,两个RF链可选择两根物理天线,终端设备可通过四根物理天线接收信息,并可通过四根物理天线中的两根发送信息,实现了支持2T4R的终端设备的发送天线的选择,进而可利用不同天线之间的信道差异获得分集增益,操作灵活,适用性更高。
可选的,如图3,图3是本申请实施例提供的终端设备的另一天线选择示意图。假设终端设备配置有四根物理天线,例如天线(简称TX)0、TX1、TX2和TX3,也可配置四个RF链,例如RF chain1、RF chain2、RF chain3和RF chain4。其中,一个RF链可对应一个根物理天线。例如,RF chain1可对应TX0,RF chain2可对应TX1,RF chain3可对应TX2,RF chain4可对应TX3。上述RF链与天线的对应关系仅是示例,具体可根据实际应用场景需要确定,在此不做限制。如图3所示,在任一RF链所对应的物理天线中,通过开关器件可实现连接或者断开该RF链所连接的物理天线,进而可实现是否选择该RF链所连接的物理天线向网络设备发送信息。上述图2和图3所示的RF链与物理天线对应关系仅是举例,包括但不限于图2和图3所示的连接方式,具体可根据实际应用场景确定,在此不做限制。
为方便理解,下面将对本申请实施例涉及或者可能涉及的物理天线、物理天线端口以及逻辑天线端口等参数进行简要说明:
物理天线:可简称天线,可也以称为用户天线,或,用户天线端口,或,用户端口等,在此不做限制。为方便描述,下面将以物理天线为例进行说明。其中,终端设备(和/或网络设备)的物理天线中可包括用于发送信息的发送天线和用于接收信息的接收天线。天线可以和天线的馈电口具有对应关系。一般来说,一根物理天线可以是指一个物理天线的阵元。不同的物理天线之间可采用不同的标识或者索引(例如天线端口0(port0)、天线端口1(port1)、天线端口2(port2)、…,如图2或者图3所示TX0、TX1、TX2和TX3等)进行区分和/或标记。但是,这里用于标记物理天线的天线端口不同于承载物理信道的天线端口。为方便描述,用于标记物理天线的天线端口可用物理天线端口进行说明,用于承载物理信道的天线端口可用逻辑天线端口进行说明。本申请实施例提供的天线选择方法所要选择的发送天线是一个物理上的含义(即物理天线),其在设计中可以和逻辑天线端口有关联,也可以无关联。
逻辑天线端口:或简称天线端口,是一种逻辑上的含义。为方便描述,下面将以逻辑天线端口为例进行说明。上述逻辑天线端口可包括但不限于:用于上行数据传输的信道(为方便描述可简称为上行数据信道)的逻辑天线端口,如PUSCH的天线端口;用于解调的参考信号(简称解调参考信号)的逻辑天线端口,如解调参考信号(demodulation reference signal,DMRS)的逻辑天线端口;用于信道探测的参考信号(为方便描述可简称为信道探测参考信号)的逻辑天线端口,如探测参考信号(sounding reference signal,SRS)的逻辑天线端口。本申请实施例提供的逻辑天线端口是指的用于承载具体的物理信道,和/或,物理信号的天线端口。通过相同的逻辑天线端口所发送的信号,无论这些信号是否是通过相同或不同的物理天线发送,他们在空间传输所经历的路径所对应的信道可视为相同或者相关(比如大尺度信道特性,如信道矩阵H,相同)。也就是说,在相同的逻辑天线端口所发送的信号,接收端在解调时可以认为其信道相同或者相关。通常,信号接收端通过逻辑天 线端口可识别通过不同传输信道传输的不同信号。
一般来说,逻辑天线和物理天线的映射关系是实现问题,可以对一根或多根物理天线进行加权可形成一个逻辑天线。逻辑天线对应的逻辑天线端口与用于标记物理天线的物理天线端口的映射也可以为用户实现问题,具体可参见相关通信协议中物理天线和逻辑天线的映射以及物理天线端口和逻辑天线端口的映射相关的用户实现内容,在此不做限制。
下面将结合图4至图8对本申请实施例提供的天线选择方法及相关装置进行说明。
参见图4,图4是本申请实施例提供的天线选择方法的一流程示意图。本申请实施例提供的方法可包括步骤:
S301,网络设备确定终端设备的天线选择方式。
在一些可行的实施方式中,终端设备可根据其自身的能力状态,向网络设备上报能力信息。网络设备可通过终端设备上报的方式获得终端设备的能力信息,基于终端设备上报的能力信息确定终端设备的能力。可选的,网络设备也可从核心网获取终端设备的能力信息,基于获取的终端设备的能力信息确定终端设备的能力。为方便描述,下面将以终端设备上报的方式为例进行说明。这里,终端设备的能力可以为终端设备支持从多个天线中选择一根或者多根天线的天线选择方式。例如,当终端设备支持1T2R时,可表示终端设备的能力是支持一根物理天线发送、两根物理天线接收,即终端设备的天线选择方式是从两根物理天线中选择一根物理天线作为上行传输的发送天线(为方便描述可表示为终端设备的天线选择方式为1T2R),同时也表示终端设备至少有两根物理天线。当终端设备支持1T4R时,可表示终端设备的能力是支持一根物理天线发送、四根物理天线接收,即终端设备的天线选择方式是从四根物理天线中选择一根物理天线作为上行传输的发送天线(为方便描述可表示为终端设备的天线选择方式为1T4R),同时也表示终端设备至少有四根物理天线。当终端设备支持2T4R时,可表示终端设备的能力是支持两根物理天线发送、四根物理天线接收,即终端设备的天线选择方式是从四根物理天线中选择两根物理天线作为上行传输的发送天线(为方便描述可表示为终端设备的天线选择方式为2T4R),同时也表示终端设备至少有四根物理天线。当终端设备支持1T8R时,可表示终端设备的能力是支持一根物理天线发送、八根物理天线接收,即终端设备的天线选择方式是从八根物理天线中选择一根物理天线作为上行传输的发送天线(为方便描述可表示为终端设备的天线选择方式为1T8R),同时也表示终端设备至少有八根物理天线。
在一些可行的实施方式中,终端设备向网络设备上报的能力信息,可以是用于指示(或称表示)终端设备支持从多根物理天线中选择一根或者多根物理天线作为向网络设备发送信息的发送天线的能力标识信息。例如,当终端支持1T4R时,终端设备向网络设备上报的能力信息可为1T4R,即终端设备的天线选择方式为1T4R。当终端设备向网络设备上报的能力信息为1T4R时,网络设备则可确定终端设备支持一根物理天线发送、四根物理天线接收,同时也可确定终端设备有四根物理天线。同理,当终端支持2T4R时,终端设备向网络设备上报的能力信息可为2T4R,即终端设备的天线选择方式为2T4R。当终端设备向网络设备上报的能力信息为2T4R时,网络设备则可确定终端设备支持两根物理天线发送、四根物理天线接收,同时也可确定终端设备有四根物理天线。以此类推,网络设备可根据终端设备上报的能力信息,确定终端设备支持1T8R或者2T8R等,在此不再赘述。
可选的,在一些可行的实施方式中,网络设备也可根据终端设备的上行传输模式(transmission mode)确定终端设备的天线选择方式。例如,当终端设备的上行传输模式为TM1时,表示终端设备的上行传输为单天线传输。网络设备可根据终端设备的上行传输模式为TM1,确定终端设备的能力是终端设备只能支持一根物理天线的信息发送。当终端设备的上行传输模式为TM2时,表示终端设备的上行传输模式是上行多输入多输出(multiple-input multiple-output,MIMO)的多天线传输。网络设备可根据终端设备的上行传输模式为TM2,确定终端设备可支持多根物理天线的信息发送。其中,终端设备的上行传输模式可由网络设备配置,终端设备的上行传输模式与终端设备发送上行数据的天线选择方式之间具有对应关系。也就是说,终端设备发送上行数据的天线选择方式(例如1T2R,1T4R或者2T4R等)与网络设备配置给终端设备的上行传输模式具有对应关系。该对应关系可以是通信协议规定的,也可以是网络设备通过信令配置的,在此不做限制。
S302,网络设备向终端设备发送使能上行数据传输天线选择的配置参数。
在一些可行的实施方式中,网络设备可通过高层信令向终端设备发送使能终端设备的上行数据传输天线选择的配置参数。也就是说,终端设备的上行数据传输的天线选择是网络设备通过高层信令配置的。可选的,网络设备向终端设备发送的使能终端设备的上行数据传输天线选择的配置参数可为ue-TransmitAntennaSelection。网络设备可通过配置参数ue-TransmitAntennaSelection的取值来指示终端设备的上行数据传输的天线选择是闭环天线选择还是开环天线选择。若网络设备向终端设备发送的配置参数指示终端设备的上行数据传输的天线选择为闭环天线选择,则可执行如下步骤S303至S305。若网络设备向终端设备发送的配置参数指示终端设备的上行数据传输天线选择为开环天线选择,则通信协议不规定终端设备的上行数据传输的天线,此时终端设备的上行数据传输的天线选择属于终端设备的实现行为,在此不做限制。若网络设备没有向终端设备发送使能上行数据传输天线选择的配置参数,终端设备则不进行上行数据传输的天线选择,而是直接使用通信协议规定的物理天线端口进行上行数据传输,在此不做限制。
S303,网络设备向终端设备发送下行控制信息。
S304,终端设备根据从网络设备接收的下行控制信息确定天线选择指示信息。
在一些可行的实施方式中,网络设备可根据终端设备的天线选择方式确定终端设备用于上行传输的一根或者多根天线的天线指示信息。其中,终端设备的天线选择方式可包括选择多少根物理天线作为上行传输的发送天线,还可包括选择哪一根或者哪几根物理天线作为上行传输的发送天线等。例如,假设终端设备支持1T4R,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备的发送天线的选择方式可以是从四根物理天线中选择一根物理天线作为发送天线,还可以是具体选择四根物理天线中的哪一根物理天线作为发送天线。或者,假设终端设备支持2T4R,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备的发送天线的选择方式可以是从四根物理天线中选择一根或者两根物理天线作为发送天线,还可以是具体选择四根物理天线中的哪一根或者哪两根物理天线作为发送天线等。以此类推,假设终端设备具备支持1T8R或者2T8R的能力时,网络设备也可根据终端设备的能力信息或者上行传输模式确定与终端设备的能力相匹配的天线选择方式,本申请实施例对所选择的天线数量不做限定。
在一些可行的实施方式中,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备选择发送天线时的天线选择方式,还可根据确定得到的天线选择方式配置相应的天线选择指示信息。其中,该天线选择指示信息则可用于指示终端设备从其配置有的多根物理天线中选择哪一根或者哪几根物理天线作为上行传输的发送天线。其中,上述天线选择指示信息与一根或者多根物理天线的对应关系可由通信协议规定,也可由网络设备配置,具体可根据实际应用场景确定,在此不做限制。为方便描述,上述终端设备从其配置的多根物理天线中选择的一根或者多根物理天线也可称为一根或者多根第一天线。换句话说,在本申请实施例中,第一天线表示终端设备用于上行传输的物理天线,第一天线的数量可以是一根,也可以是多根,在此不做限制。例如,当终端设备支持1T4R时,网络设备根据终端设备的能力信息或者上行传输模式确定终端设备的发送天线的选择方式可以是从四根物理天线中选择一根物理天线作为发送天线,还可以是具体选择四根物理天线中的哪一根物理天线作为发送天线之后,网络设备可配置用于指示终端设备从其配置的四根物理天线中选择一根和/或哪一根物理天线作为发送天线的天线选择指示信息。
在一些可行的实施方式中,网络设备可生成下行控制信息(downlink control information,DCI),并向终端设备发送DCI。网络设备可通过向终端设备发送DCI来向终端设备发送天线选择指示信息。终端设备可从网络设备接收DCI,获取DCI对应的天线选择指示信息,基于该天线选择指示信息指示的一根或者多根第一天线向网络设备发送信息。其中,网络设备向终端设备发送DCI,通过发送DCI来向终端设备发送天线选择指示信息的实现方式包括但不限于如下实现方式一至实现方式五,或者是实现方式一至实现方式五的任意组合。下面将结合不同应用场景中终端设备所具备的能力,对上述实现方式一至实施方式五中各实现方式进行说明:
实现方式一:
在一些可行的实施方式中,基于DCI是基于循环冗余校验(cyclic redundancy check,CRC)进行差错检测的特点,网络设备可对向终端设备发送的DCI中携带的CRC校验位进行加扰,通过用于对DCI的CRC进行加扰的掩码对向终端设备指示天线选择方式。在终端设备不支持上行传输的天线选择或者终端设备没有应用上行传输的天线选择时,网络设备在向终端设备的发送的DCI中添加了CRC校验位之后,CRC校验位可通过相应的无线网络临时标识(radio network tempory identity,RNTI)(例如x rnti,0,x rnti,1,...,x rnti,15)进行加扰,获取加扰后的序列c 0,c 1,c 2,c 3,...,c B-1。其中,B=A+L,A为物理下行控制信道(physical downlink control channel,PDCCH)有效载荷的大小,L为CRC校验位的数目(A is the PDCCH payload size and L is the number of parity bits,参见协议36.212中5.3.3.2CRC attachment)。
在终端设备支持上行传输的天线选择或者终端设备应用了上行传输的天线选择时,网络设备在向终端设备发送的DCI中添加了CRC校验位之后,CRC校验位可通过相应的RNTI(例如x rnti,0,x rnti,1,...,x rnti,15)和掩码(mask)(例如x AS,0,x AS,1,...,x AS,15)进行加扰,获取加扰后的序列c 0,c 1,c 2,c 3,...,c B-1(参见协议36.212中5.3.3.2CRC attachment)。可以理解,这里上述用于对DCI的CRC校验位进行加扰的掩码可简称为CRC掩码,也可称为DCI的CRC掩码。通过该CRC掩码,则可向终端设备指示天线选择方式,因此,在该实现方式中,CRC掩码即可作为天线选择指示信息。换句话说,终端设备从网络设备发送的DCI中获取的DCI 对应的天线选择指示信息可由DCI的CRC掩码表征。网络设备可根据终端设备的天线选择方式确定终端设备的多根物理天线中用于上行传输的一根或者多根天线,进而确定与上述用于上行传输的一根或者多根天线对应的掩码。网络设备可使用该掩码结合相应的RNTI对上述生成的用于调度终端设备的DCI的CRC进行加扰,并从终端设备发送加扰后的DCI,以通过DCI的CRC掩码向终端设备指示用于上行传输的一根或者多根物理天线。为方便描述,用作天线选择指示信息的CRC掩码也可称为天线选择掩码(antenna selection mask),或称掩码(mask),具体可根据实际应用场景需求确定,在此不做限制。
在一些可行的实施方式中,当终端设备支持1T4R时,网络设备可通过四组不同的天线选择掩码指示终端设备从四根物理天线中选择不同的物理天线作为发送天线。为方便描述,下面可通过表格的方式将天线选择掩码与其所指示的物理天线的对应关系进行说明。具体实现中,天线选择掩码与其所指示的物理天线的对应关系也可通过表格之外的其他任意表现形式表示,具体可根据实际应用场景需求确定,在此不做限制。
如表1,表1为天线选择掩码与发送天线选择的物理天线端口的一对应关系表。其中,不同的物理天线端口可用于标识不同的物理天线。其中,一组天线选择掩码可对应指示一个物理天线端口。上述天线选择掩码与发送天线选择的物理天线端口的对应关系可由通信协议规定,也可由网络设备配置,下面不再赘述。
表1
Figure PCTCN2018081449-appb-000001
如上表1所示,当终端设备支持1T4R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的四根物理天线中物理天线端口为port 0的物理天线(假设为物理天线0,或者TX0)为第一天线。其中,第一天线可表示从终端设备的四根物理天线中选择用于向网络设备发送信息的发送天线,下面不再赘述。同理,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0>可指示终端设备的四根物理天线中物理天线端口为port 3(假设为物理天线3,或者TX3)的物理天线为第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的四根物理天线中不同的物理天线为第一天线。
可选的,当终端设备支持1T4R时,网络设备还可通过如下表2所示的四组不同的天线选择掩码指示终端设备从四根物理天线中选择不同的物理天线作为发送天线。其中,表2为天线选择掩码与发送天线选择的物理天线端口的另一对应关系表。
表2
Figure PCTCN2018081449-appb-000002
同理,如上表2所示,当终端设备支持1T4R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的四根物理天线中物理天线端口为port 0的物理天线为第一天线。通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1>可指示终端设备的四根物理天线中物理天线端口为port 3的物理天线为第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的四根物理天线中不同的物理天线为第一天线。
在一些可行的实施方式中,当终端设备支持1T8R时,网络设备可通过八组不同的天线选择掩码指示终端设备从八根物理天线中选择不同的物理天线作为发送天线。网络设备还可通过如下表3和表4所示的八组不同的天线选择掩码指示终端设备从八根物理天线中选择不同的物理天线作为发送天线。其中,表3为天线选择掩码与发送天线选择的物理天线端口的另一对应关系表。
表3
Figure PCTCN2018081449-appb-000003
同理,如上表3所示,当终端设备支持1T8R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的八根物理天线中物理天线端口为port 0的物理天线为第一天线。通过天线选择掩码<0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0>可指示终端设备的八根物理天线中物理天线端口为port 7的物理天线为第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的八根物理天线中不同的物理天线为第一天线。
表4为天线选择掩码与发送天线选择的物理天线端口的另一对应关系表。
表4
Figure PCTCN2018081449-appb-000004
同理,如上表4所示,当终端设备支持1T8R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的八根物理天线中物理天线端口为port 0的物理天线为第一天线。通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1>可指示终端设备的八根物理天线中物理天线端口为port 7的物理天线为第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的八根物理天线中不同的物理天线为第一天线。
在一些可行的实施方式中,当终端设备支持2T4R时,网络设备可通过四组不同的天线选择掩码指示终端设备从四根物理天线中选择不同的物理天线作为发送天线。网络设备还可通过如下表5所示的四组不同的天线选择掩码指示终端设备从四根物理天线中选择不同的两根物理天线作为发送天线。其中,表5为天线选择掩码与发送天线选择的物理天线端口的另一对应关系表。
表5
Figure PCTCN2018081449-appb-000005
同理,如上表5所示,当终端设备支持2T4R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的四根物理天线中物理天线端口为port 0和port1的两根物理天线为第一天线。通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>可指示终端设备的四根物理天线中物理天线端口为port 0和port3的两根物理天线为第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的四根物理天线中不同的两根物理天线为第一天线。
可选的,在一些可行的实施方式中,对于终端设备侧的物理天线,也可预先对其进行分组,一个天线分组包括至少一根物理天线。在对终端设备侧的物理天线进行分组以得到多个天线分组之后,也可通过天线选择掩码指示终端设备的天线分组,进而可将该天线分组中包括的天线确定为第一天线。可选的,终端设备侧的天线分组可由通信协议规定(如 下分组方式一),也可由网络设备指示(如下分组方式二),也可通过其他更多的分组方式确定,也可为分组方式一、分组方式二以及其他更多分组方式中的一种或者多种组合,具体可根据实际应用场景确定,在此不做限制。下面将以分组方式一和分组方式二为例进行说明。
分组方式一:
在一些可行的实施方式中,当终端设备支持1T2R、1T4R、1T8R、2T4R或者2T8R等等时,可确定终端设备侧的物理天线为两根、四根或者八根等。通过通信协议规定等预定义分组规则可将终端设备的两根、四根或者八根物理天线划分为一个或者多个天线分组。为方便描述,当终端设备支持2R(例如1T2R)时可简称终端设备的天线配置为2R。同理,当终端设备支持4R(例如1T4R或者2T4R)时可简称终端设备的天线配置为4R。当终端设备支持8R时(例如1T8R或者2T8R)时可简称终端设备的天线配置为8R。
可选的,当终端设备的天线配置为4R时,假设终端设备的四根物理天线的物理天线端口号分别为0、1、2和3(对应可标记为port0、port1、port2和port3,下面相似的实现方式将不再赘述)。通过通信协议规定等预定义分组规则可将终端设备的该四根物理天线分为六个天线分组。例如,上述六个天线分组可分别为{0,1}、{0,2}、{0,3}、{1,2}、{1,3}、{2,3}。
可选的,当终端设备的天线配置为4R时,假设终端设备的四根物理天线的物理天线端口号分别为0、1、2、3。通过通信协议规定等预定义分组规则可将终端设备的该四根物理天线分为四个天线分组。例如,上述四个天线分组可以分别为{0,1,2}、{0,1,3}、{0,2,3}、{1,2,3}。
可选的,当终端设备的天线配置为4R时,假设终端设备的四根物理天线的物理天线端口号分别为0、1、2、3。通过通信协议规定等预定义分组规则可将终端设备的该四根物理天线分为十一个天线分组。例如,上述十一个天线分组可以分别为{0}、{1}、{0,1}、{0,2}、{0,3}、{1,2}、{1,3}、{2,3}、{0,1,2}、{0,1,3}、{0,2,3}。
同理,可选的,当终端设备的天线配置为8R时,假设终端设备的八根物理天线的物理天线端口号分别为0、1、2、3、4、5、6、7。通过通信协议规定等预定义分组规则可将终端设备的该八根物理天线分为二十八个天线分组。例如,上述二十八个天线分组可分别为{0,1}、{0,2}、{0,3}、{0,4}、{0,5}、{0,6}、{0,7}、{1,2}、{1,3}、{1,4}、{1,5}、{1,6}、{1,7}、{2,3}、{2,4}、{2,5}、{2,6}、{2,7}、{3,4}、{3,5}、{3,6}、{3,7}、{4,5}、{4,6}、{4,7}、{5,6}、{5,7}、{6,7}。
上述终端设备的物理天线的分组方式仅是举例,而非穷举,包括但不限于上述各分组方式,具体可根据实际应用场景需求确定,在此不做限制。
可选的,在一些可行的实施方式中,终端设备侧的物理天线通过通信协议规定等预定义分组规则划分为多个天线分组之后,终端设备还可向网络设备上报天线分组的指示信息。网络设备从终端设备接收天线分组的指示信息之后,则可根据该指示信息确定终端终端设备的物理天线的天线分组方式,进而可通过天线选择掩码等方式从终端设备指示发送天线的天线选择方式。
分组方式二:
在一些可行的实施方式中,终端设备侧的天线分组的划分方式也可由网络设备下发的 指示信息确定。网络设备可通过高层信令从终端设备发送的天线分组方式的指示信息。终端设备可从网络设备接收高层信令,根据高层信令中包括的指示信息确定天线分组方式。其中,上述高层信令可包括无线资源控制(radio resource control,RRC)信令和/或媒体访问控制(media access control,MAC)控制元素(control element,CE)信令等,在此不做限制。
可选的,当终端设备的天线配置为4R时,假设终端设备的四根物理天线的物理天线端口号分别为0、1、2、3。网络设备通过高层信令可以直接下发指示信息,指示终端设备的物理天线的天线分组为{0,1}、{0,2}、{0,3}、{1,2}、{1,3}、{2,3}。即,网络设备可通过高层信令直接指示终端设备的物理天线分组中各天线分组所包括的物理天线的物理天线端口号。终端设备从网络设备接收到高层信令之后,则可由高层信令中包括的指示信息确定其物理天线的天线分组方式为{0,1}、{0,2}、{0,3}、{1,2}、{1,3}、{2,3}。即终端设备的四根物理天线可两两组合得到六个天线分组。
例如,当终端设备的天线配置为4R时,假设终端设备的四根物理天线的物理天线端口号分别为0、1、2、3。网络设备通过高层信令可以直接下发指示信息,指示终端设备的物理天线的天线分组为{0,1,2}、{0,1,3}、{0,2,3}、{1,2,3}。即终端设备的四根物理天线可三三组合得到四个天线分组。
上述网络设备通过高层信令下发的指示信息所指示的天线分组方式仅是举例,而非穷举,包括但不限于上述各分组方式,具体可根据实际应用场景需求确定,在此不做限制。
可选的,当终端设备支持2T4R时,假设终端设备的四根物理天线通过通信协议规定等预定义分组规则划分为六个天线分组,或者网络设备的高层信令所下发的指示信息指示划分为六个天线分组,例如上述六个天线分组为{0,1}、{0,2}、{0,3}、{1,2}、{1,3}、{2,3}。为方便描述,上述六个天线分组可通过port group0、port group1、port group2、port group3、port group4以及port group5进行标记。网络设备可通过六组不同的天线选择掩码指示上述六个天线分组中的不同的天线分组。终端设备可根据六组不同的天线选择掩码与六个天线分组的对应关系从六个天线分组中确定出相应的天线分组,进而可将该天线分组中包括的一根或者多根物理天线确定为上行传输的发送天线。如下表6,表6为天线选择掩码与发送天线选择的天线分组的一对应关系表。其中,一组天线选择掩码可对应指示一个天线分组。上述天线选择掩码与天线分组的对应关系可由通信协议规定,也可由网络设备配置,下面不再赘述。
表6
Figure PCTCN2018081449-appb-000006
如上表6所示,当终端设备支持2T4R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的六个天线分组中的天线分组port group0。此时,可将上述天线选择样所指示的天线分组port group0设定为第一天线分组,天线分组port group0中包括物理天线端口号为{0,1}的两根物理天线则可确定为物理天线端口为port 0和port1的两根第一天线。通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>可指示终端设备的六个天线分组中的天线分组port group1。同理,此时也可将上述天线选择掩码所指出的天线分组port group1设定为第一天线分组,天线分组port group1中包括物理天线端口号为{0,2}的两根物理天线则可确定为物理天线端口为port 0和port2的两根第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的六个天线分组中的某一个天线分组,进而可将该天线分组中包括的两根物理天线确定为第一天线。
如下表7,表7为天线选择掩码与发送天线选择的天线分组的另一对应关系表。
表7
Figure PCTCN2018081449-appb-000007
同理,如上表6所示的天线选择掩码与天线分组的对应关系,在表7所示的天线选择掩码与发送天线选择的天线分组的对应关系表中,通过不同表现形式的天线选择掩码可指示终端设备的六个天线分组中的某一个天线分组,进而可将该天线分组中包括的两根物理天线确定为第一天线。具体可参见上述表6中相应的描述,在此不再赘述。
可选的,当终端设备支持2T4R时,假设终端设备的四根物理天线通过通信协议规定等预定义分组规则划分为四个天线分组,或者网络设备的高层信令所下发的指示信息指示划分为四个天线分组,例如上述四个天线分组为{0,1,2}、{0,1,3}、{0,2,3}、{1,2,3}。为方便描述,上述四个天线分组可通过port group0、port group1、port group2和port group3进行标记。网络设备可通过四组不同的天线选择掩码指示上述四个天线分组中的不同的天线分组。终端设备可根据四组不同的天线选择掩码与四个天线分组的对应关系从四个天线分组中确定出相应的天线分组,进而可将该天线分组中包括的一根或者多根物理天线确定为上行传输的发送天线。如下表8,表8为天线选择掩码与发送天线选择的天线分组的另一对应关系表。
表8
Figure PCTCN2018081449-appb-000008
如上表8所示,当终端设备支持2T4R时,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>可指示终端设备的四个天线分组中的天线分组port group0。此时,可将上述天线选择样所指示的天线分组port group0设定为第一天线分组,天线分组port group0中包括物理天线端口号为{0,1,2}的三根物理天线则可确定为物理天线端口为port 0、port1和port2的三根天线。此时,由于终端设备支持2T4R,即终端设备只能支持两根物理天线发送,无法支持三根物理天线发送,因此,网络设备通过上述天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>指示终端设备的四个天线分组中的天线分组port group0,port group0中物理天线端口为port 0、port1和port2的三根天线中可以选择任意两根作为第一天线。终端设备通过天线选择掩码确定了网络设备所支持的天线分组为port group0,进而可从port group0中物理天线端口为port 0、port1和port2中任选两根物理天线作为发送天线,用以向网络设备发送信息。同理,通过天线选择掩码<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>可指示终端设备的四个天线分组中的天线分组port group1。同理,此时也可将上述天线选择掩码所指出的天线分组port group1设定为第一天线分组,天线分组port group1中包括物理天线端口号为{0,1,3}的三根物理天线则可确定为物理天线端口为port 0、port 1和port3的三根物理天线。终端设备可从物理天线端口为port 0、port 1和port3的三根物理天线中任选两根物理天线确定为第一天线。以此类推,可通过不同的天线选择掩码指示终端设备的四个天线分组中的某一个天线分组,进而可将该天线分组中包括的一根或者多根物理天线确定为第一天线。
在本申请实施例中,网络设备可将天线选择掩码(即DCI的CRC掩码)作为天线选择指示信息,通过向终端设备发送DCI的方式,将天线选择指示信息下发给终端设备。终端设备可从网络设备接收DCI,进而可通过DCI的CRC掩码确定天线选择指示信息,将天线选择指示信息所指示的天线作为发送天线,可支持具备不同能力的不同终端设备的发送天线的选择,操作简单,适用性强。
实现方式二:
在一些可行的实施方式中,网络设备也可通过DCI中指定比特(或称特定比特)的指示信息(或称比特信息)表征DCI对应的天线选择指示信息,通过向终端设备发送DCI的方式,将天线选择指示信息下发给终端设备。假设终端设备的能力为支持1T4R或者1T8R等,在网络设备发送的调度终端设备的DCI中包含2bit(即指定比特),这2bit的取值可为00、01、10和11。这里,2bit仅是示例,具体可根据实际应用场景选择1bit或者更多bit,在此不做限制。其中,不同的取值可作为指示不同物理天线和/或不同的天线分组的指示信息。网络设备可通过配置这2bit的取值以得到天线选择指示信息。网络设备确定了这2bit的取值之后,可生成用于调度终端设备的DCI,该DCI中可包括与终端设备用于上行 传输的一根或者多根天线对应的比特值,例如,上述2bit的取值。网络设备可对包含这2bit的取值所表示的天线选择指示信息的DCI进行编码并向终端设备发送。终端设备可从网络设备接收DCI,进而可对DCI进行解码获取该DCI中包含的这2bit的取值确定天线选择指示信息。例如,当终端设备支持1T4R时,网络设备可通过调度终端设备的DCI中的2bit的“天线选择指示信息”指示当前终端设备向网络设备发送上行信息所使用的物理天线端口。例如,假设终端设备的四根物理天线的物理天线端口号分别为0、1、2、3。若上述DCI中2bit的取值为00(表示上述DCI中2bit的“天线选择指示信息”)为00,则表示上述DCI中2bit的天线选择指示信息所指示的物理天线的物理天线端口为0。终端设备从网络设备接收DCI之后,则可由DCI中的该2bit的天线选择指示信息确定从上述四根物理天线中选择物理天线端口为0的一根物理天线作为发送天线。同理,若上述DCI的2bit的“天线选择指示信息”为01时,则表示上述DCI中2bit的天线选择指示信息所指示的物理天线的物理天线端口为1。终端设备从网络设备接收DCI之后,则可由DCI中的该2bit的天线选择指示信息确定从上述四根物理天线中选择物理天线端口为1的一根物理天线作为发送天线。若上述DCI的2bit的“天线选择指示信息”为10时,则表示上述DCI中2bit的天线选择指示信息所指示的物理天线的物理天线端口为2。终端设备从网络设备接收DCI之后,则可由DCI中的该2bit的天线选择指示信息确定从上述四根物理天线中选择物理天线端口为2的一根物理天线作为发送天线。若上述DCI的2bit的“天线选择指示信息”为11时,则表示上述DCI中2bit的天线选择指示信息所指示的物理天线的物理天线端口为3。终端设备从网络设备接收DCI之后,则可由DCI中的该2bit的天线选择指示信息确定从上述四根物理天线中选择物理天线端口为3的一根物理天线作为发送天线。如下表9,表9为DCI中的指示信息与物理天线端口的对应关系表。具体实现中,DCI中指定比特的指示信息与其所指示的物理天线的对应关系也可通过表格之外的其他任意表现形式表示,具体可根据实际应用场景需求确定,在此不做限制。其中,上述DCI中指定比特的指示信息与发送天线选择的物理天线端口的对应关系可由通信协议规定,也可由网络设备配置,下面不再赘述。
表9
物理天线端口 指示信息(2bit)
port 0 00
port 1 01
port 2 10
port 3 11
在一些可行的实施方式中,上述DCI中的2bit的天线选择指示信息也可用于指示终端设备的天线分组。例如,若上述DCI的2bit的“天线选择指示信息”为00时,则表示上述DCI中2bit的天线选择指示信息所指示的物理天线的天线分组为port group0。终端设备从网络设备接收DCI之后,则可由DCI中的该2bit的天线选择指示信息确定多个天线分组中选择port group0,进而可将port group0中包括的物理天线中的一根确定为用于向网络设备发送信息的发送天线。同理,若上述DCI的2bit的“天线选择指示信息”为01时,则表示上述DCI中2bit的天线选择指示信息所指示的物理天线的天线分组为port group1。终端设备从网络设备接收DCI之后,则可由DCI中的该2bit的天线选择指示信息确定多个天线分组 中选择port group1,进而可将port group1中包括的物理天线中的一根确定为用于向网络设备发送信息的发送天线。如下表10,表10为DCI中的指示信息与物理天线的天线分组的对应关系表。具体实现中,DCI中指定比特的指示信息与其所指示的物理天线分组的对应关系也可通过表格之外的其他任意表现形式表示,具体可根据实际应用场景需求确定,在此不做限制。
表10
天线分组 指示信息(2bit)
port group0 00
port group1 01
port group2 10
port group3 11
同理,当终端设备支持2TxR时,也可通过DCI中的指定比特的天线选择指示信息指示终端设备从其配置有的x根物理天线中选择两根作为发送天线,或者选择一个天线分组并将该天线分组中的两根物理天线作为发送天线,具体可参见上述终端设备支持1TxR时所采用的实现方式以及上述实现方式一提供的实现方式,在此不再赘述。其中,上述x可为4或者8等,在此不做限制。
在本申请实施例中,网络设备可向终端设备发送DCI,在向终端设备发送的DCI中包括2bit指示信息,该DCI中这2bit的取值可作为天线选择指示信息。网络设备通过向终端设备发送DCI的方式,将DCI中指定的这2bit的天线选择指示信息下发给终端设备。终端设备可从网络设备接收DCI,进而可根据DCI中的这2bit指示信息的取值确定天线选择指示信息,将天线选择指示信息所指示的天线作为发送天线,发送上行信息。本申请实施例可通过DCI中的2bit等指定比特的指示信息指示终端设备进行发送天线的选择,可支持具备不同能力的不同终端设备的发送天线的选择,并且无需增加更多的控制信息和/或信令传输,信令开销小,终端设备的上行传输可靠性高,适用性更强。
实现方式三:
在一些可行的实施方式中,终端设备的天线选择指示信息也可根据网络设备向终端设备发送的DCI中指定比特的指示信息和DCI的CRC掩码共同表征。其中,上述DCI中指定比特的指示信息和DCI的CRC掩码共同表征的天线选择指示信息与终端设备的一根或多根第一天线的对应关系可由通信协议规定,也可由网络设备配置,在此不做限制。网络设备可生成包含与终端设备用于上行传输的一根或者多根天线对应的指定比特的指示信息的DCI,并使用与该一根多根天线对应的CRC掩码对该DCI的CRC进行加扰,并向终端设备发送加扰后的DCI。网络设备可通过向终端设备发送DCI的方式,将由DCI中指定比特的指示信息和DCI的CRC掩码作为天线选择指示信息,发送给终端设备。可选的,假设终端设备支持1TxR,终端设备从其x根物理天线中选择一根物理天线作为发送天线的天线选择指示信息可由网络设备发送的DCI中的1bit的指示信息和DCI的CRC掩码共同确定。或者终端设备从其x根物理天线所属的多个天线分组中选择一个天线分组,将该天线分组中包括的一根或者多根物理天线中的任一根物理天线作为发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>且DCI的1bit的指 示信息(即1bit的取值)为“0”可为天线选择指示信息,为方便描述可以天线选择指示信息0为例进行说明。其中,上述天线选择指示信息0可用于指示终端设备的x根物理天线中物理天线端口为0的物理天线为发送天线。和/或,上述天线选择指示信息0可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group0,进而可将port group0中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>且DCI中1bit的指示信息为“0”可为天线选择指示信息,为方便描述可以天线选择指示信息1为例进行说明。其中,上述天线选择指示信息1可用于指示终端设备的x根物理天线中物理天线端口为1的物理天线为发送天线。和/或,上述天线选择指示信息1可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group1,进而可将port group1中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>且DCI中1bit的指示信息为“1”可为天线选择指示信息,为方便描述可以天线选择指示信息2为例进行说明。上述天线选择指示信息2可用于指示终端设备的x根物理天线中物理天线端口为2的物理天线为发送天线。和/或,上述天线选择指示信息2可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group2,进而可将port group2中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>且DCI中1bit的指示信息为“1”可为天线选择指示信息,为方便描述可以天线选择指示信息3为例进行说明。其中,上述天线选择指示信息3可用于指示终端设备的x根物理天线中物理天线端口为3的物理天线为发送天线。和/或,上述天线选择指示信息3可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group3,进而可将port group3中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
在一些可行的实施方式中,当终端设备支持2TxR时,也可以DCI中的指定比特的指示信息和DCI的CRC掩码为天线选择指示信息。终端设备可从网络设备接收DCI,并根据DCI中1bit的指示信息和DCI的CRC掩码共用确定天线选择指示信息,根据该天线选择指示信息从其配置有的x根物理天线中选择两根作为发送天线,或者选择一个天线分组并将该天线分组中的两根物理天线作为发送天线,具体可参见上述终端设备支持1TxR时所采用的实现方式以及上述实现方式一提供的实现方式,在此不再赘述。其中,上述x可为4或者8等,在此不做限制。
在本申请实施例中,网络设备可将天线选择掩码(即DCI的CRC掩码)和DCI中指定比特的指示信息作为终端设备的发送天线的天线选择指示信息,通过向终端设备发送DCI的方式,将天线选择指示信息下发给终端设备。终端设备可从网络设备接收DCI,进而可通过DCI的CRC掩码和DCI中指定比特的指示信息确定天线选择指示信息,将天线选择指示信息所指示的天线选择为发送天线,可支持具备不同能力的不同终端设备的发送天线的选择,增加了终端设备的发送天线的天线选择指示信息的传输形式,提高终端设备的天线选择指示信息的处理灵活性。
实现方式四:
在一些可行的实施方式中,终端设备的天线选择指示信息可以是网络设备向终端设备发送的DCI所在的子帧奇偶编号和/或时隙奇偶编号和DCI的CRC掩码。其中,上述DCI所在的子帧奇偶编号和/或时隙奇偶编号可以是用于标识DCI所占用的时域的标识信息。换句话说,网络设备向终端设备发送DCI时,DCI所占用的时域的标识信息可用于表征DCI对应的天线选择指示信息。为方便描述,下面将以DCI所在的子帧奇偶编号作为DCI所占用的时域的标识信息的示例,通过DCI所在的子帧奇偶编号表征天线选择指示信息为例进行说明。其中,上述DCI所在的子帧奇偶编号和DCI的CRC掩码共同表征的天线选择指示信息与终端设备的一根或多根第一天线的对应关系可由通信协议规定,也可由网络设备配置,在此不做限制。网络设备可在与终端设备用于上行传输的一根或者多根天线对应的子帧上向终端设备发送使用与该一根多根天线对应的CRC掩码进行加扰后的DCI,通过承载DCI的子帧的奇偶编号(即子帧标识信息)和DCI的CRC掩码指示终端设备的发送天线的天线选择方式。在该应用场景中,上述承载DCI的子帧奇偶编号和DCI的CRC掩码为指示终端设备进行发送天线选择的天线选择指示信息。终端设备从网络设备接收DCI,从而可确定得到承载该DCI的子帧是奇数编号子帧还是偶数编号子帧。终端设备还可该DCI中获取得到CRC掩码,进而可结合上述确定的子帧的奇数编号或者偶数编号的特性确定发送天线的天线选择方式。假设终端设备支持1TxR,终端设备从其x根物理天线中选择一根物理天线作为发送天线的天线选择指示信息可由网络设备发送的DCI所在子帧的子帧奇偶编号和DCI的CRC掩码共同确定。或者终端设备从其x根物理天线所属的多个天线分组中选择一个天线分组,将该天线分组中包括的一根或者多根物理天线中的任一根物理天线作为发送天线的天线选择指示信息可由网络设备发送的DCI所在子帧的子帧奇偶编号和DCI的CRC掩码共同确定。
当终端支持1TxR时,终端设备的发送天线的天线选择指示信息可以是DCI中的CRC掩码和网络设备向终端设备发送DCI时该DCI所在子帧的奇偶编号。例如,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>且DCI所在子帧的子帧编号为奇数编号可以为天线选择指示信息,为方便描述可以天线选择指示信息0为例进行说明。其中,上述天线选择指示信息0可用于指示终端设备的x根物理天线中物理天线端口为0的物理天线为发送天线。和/或,上述天线选择指示信息0可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group0,进而可将port group0中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>且DCI所在子帧的子帧编号为偶数编号可以为天线选择指示信息,为方便描述可以天线选择指示信息1为例进行说明。其中,上述天线选择指示信息1可用于指示终端设备的x根物理天线中物理天线端口为1的物理天线为发送天线。和/或,上述天线选择指示信息1可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group1,进而可将port group1中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>且DCI所在子帧的 子帧编号为奇数编号可以为天线选择指示信息,为方便描述可以天线选择指示信息2为例进行说明。上述天线选择指示信息2可用于指示终端设备的x根物理天线中物理天线端口为2的物理天线为发送天线。和/或,上述天线选择指示信息2可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group2,进而可将port group2中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI的CRC掩码为<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1>且DCI所在子帧的子帧编号为偶数编号可以为天线选择指示信息,为方便描述可以天线选择指示信息3为例进行说明。其中,上述天线选择指示信息3可用于指示终端设备的x根物理天线中物理天线端口为3的物理天线为发送天线。和/或,上述天线选择指示信息3可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group3,进而可将port group3中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
在一些可行的实施方式中,当终端设备支持2TxR时,也可以DCI所在的子帧奇偶编号和DCI的CRC掩码为天线选择指示信息。终端设备可从网络设备接收DCI,并根据所在的子帧奇偶编号和DCI的CRC掩码共同确定发送天线的天线选择指示信息,根据该天线选择指示信从其配置有的x根物理天线中选择两根作为发送天线,或者选择一个天线分组并将该天线分组中的两根物理天线作为发送天线,具体可参见上述终端设备支持1TxR时所采用的实现方式以及上述实现方式一提供的实现方式,在此不再赘述。其中,上述x可为4或者8等,在此不做限制。
在本申请实施例中,网络设备可利用天线选择掩码(即DCI的CRC掩码)和向终端设备发送的DCI所使用的子帧的奇偶编号特性向终端设备指示发送天线的天线选择方式,终端设备可通过DCI的CRC掩码和从网络设备接收的DCI所在子帧的奇偶编号特性获得天线选择指示信息,将天线选择指示信息所指示的天线作为发送天线。本申请实施例可支持具备不同能力的不同终端设备的发送天线的选择,增加了终端设备的发送天线的天线选择指示信息的传输形式,提高终端设备的天线选择指示信息的处理灵活性。同时,天线选择方式的指示下发实现难度低,数据处理量少,进而也可提高终端设备的数据处理质量。
实现方式五:
在一些可行的实施方式中,终端设备的天线选择指示信息也可根据网络设备向终端设备发送的DCI中指定比特的指示信息和DCI所在的子帧奇偶编号共同表征。其中,上述DCI中指定比特的指示信息和DCI所在的子帧奇偶编号共同表征的天线选择指示信息与终端设备的一根或多根第一天线的对应关系可由通信协议规定,也可由网络设备配置,在此不做限制。网络设备可在与终端设备用于上行传输的一根或者多根天线对应的子帧上向终端设备发送包含与该一根多根天线对应指定比特的指示信息的DCI,通过承载DCI的子帧奇偶编号的子帧标识信息和DCI中指定比特的指示信息共同向终端设备指示终端设备的发送天线的天线选择方式。在该应用场景中,上述承载DCI的子帧奇偶编号和DCI中指定比特的指示信息可为天线选择指示信息。终端设备从网络设备接收DCI,从而可确定得到承载该DCI的子帧是奇数编号子帧还是偶数编号子帧。终端设备还可该DCI中获取得到指定 比特的指示信息,进而可结合上述确定的子帧的奇数编号或者偶数编号的特性确定发送天线的天线选择方式。假设终端设备支持1TxR,终端设备从其x根物理天线中选择一根物理天线作为发送天线的天线选择指示信息可由网络设备发送的DCI中的1bit的指示信息和承载DCI的子帧奇偶编号的子帧标识信息共同确定。或者终端设备从其x根物理天线所属的多个天线分组中选择一个天线分组,将该天线分组中包括的一根或者多根物理天线中的任一根物理天线作为发送天线的天线选择指示信息可由网络设备发送的DCI所在子帧的子帧奇偶编号和DCI的1bit的指示信息共同确定。
可选的,当终端支持1TxR时,终端设备的发送天线的天线选择指示信息可以根据DCI中的1bit的指示信息和网络设备向终端设备发送的DCI所在子帧的奇偶编号共同确认。例如,DCI中的1bit的指示信息为“0”且DCI所在子帧的子帧编号为奇数编号可为天线选择指示信息,为方便描述可以天线选择指示信息0为例进行说明。其中,上述天线选择指示信息0可用于指示终端设备的x根物理天线中物理天线端口为0的物理天线为发送天线。和/或,上述天线选择指示信息0可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group0,进而可将port group0中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI中的1bit的指示信息为“0”且DCI所在子帧的子帧编号为偶数编号可为天线选择指示信息,为方便描述可以天线选择指示信息1为例进行说明。其中,上述天线选择指示信息1可用于指示终端设备的x根物理天线中物理天线端口为1的物理天线为发送天线。和/或,上述天线选择指示信息1可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group1,进而可将port group1中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI中的1bit的指示信息为“1”且DCI所在子帧的子帧编号为奇数编号可为天线选择指示信息,为方便描述可以天线选择指示信息2为例进行说明。上述天线选择指示信息2可用于指示终端设备的x根物理天线中物理天线端口为2的物理天线为发送天线。和/或,上述天线选择指示信息2可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group2,进而可将port group2中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
可选的,DCI中的1bit的指示信息为“1”且DCI所在子帧的子帧编号为偶数编号可为天线选择指示信息,为方便描述可以天线选择指示信息3为例进行说明。其中,上述天线选择指示信息3可用于指示终端设备的x根物理天线中物理天线端口为3的物理天线为发送天线。和/或,上述天线选择指示信息3可用于指示终端设备的x根物理天线划分得到的多个天线分组中的port group3,进而可将port group3中包括的物理天线中的一根或者多根物理天线中的任一根物理天线确定为用于向网络设备发送信息的发送天线。
在一些可行的实施方式中,当终端支持2TxR时,可以DCI中的1bit的指示信息为“0”且DCI所在子帧的子帧编号为奇数编号为天线选择指示信息0、以DCI中的1bit的指示信息为“0”且DCI所在子帧的子帧编号为偶数编号为天线选择指示信息1、以DCI中的1bit的指示信息为“1”且DCI所在子帧的子帧编号为奇数编号为天线选择指示信息2、以DCI中的1bit的指示信息为“1”且DCI所在子帧的子帧编号为偶数编号为天线选择指示信息3, 并通过天线选择指示信息0、1、2和3分别指示终端设备的两个物理天线端口或一个物理天线组。例如,天线选择指示信息0、1、2和3可以分别代表使能终端设备的物理天线分组0、1、2、3,即port group0、port group1、port group2和port group3。具体可参见上述终端设备支持1TxR时所采用的实现方式,在此不再赘述。其中,上述x可为4或者8等,在此不做限制。
在本申请实施例中,网络设备可利用DCI中指定比特的指示信息和向终端设备发送的DCI所使用的子帧的奇偶编号特性向终端设备指示发送天线的天线选择方式,终端设备可DCI中指定比特的指示信息和从网络设备接收的DCI所在子帧的奇偶编号特性获得天线选择指示信息,将天线选择指示信息所指示的天线作为发送天线。本申请实施例可支持具备不同能力的不同终端设备的发送天线的选择,增加了终端设备的发送天线的天线选择指示信息的传输形式,提高终端设备的天线选择指示信息的处理方式多样性。
S305,终端设备基于天线选择指示信息选择一根或者多根天线向网络设备发送信息。
在一些可行的实施方式中,终端设备根据上述实现方式一至实现方式五中任意一种或者任意多种实现方式确定了发送天线之后,则可基于选择的发送天线向网络设备发送信息。如上述所示,这里,终端设备向网络设备发送的信息可以是PUSCH数据、PUCCH、SRS中的一种或者多种,具体可根据实际应用场景确定,在此不做限制。
在本申请实施例中,在终端设备配置的物理天线三根或者四根或者更多,并且终端设备只能支持其中的一根或者多根等部分物理天线的发送时,终端设备可通过网络设备下发的多种表现形式的天线选择指示信息从其配置的多根物理天线中选择相应的物理天线作为发送天线,并基于网络设备下发的天线选择指示信息所指示的发送天线向网络设备发送信息,实现了终端设备的闭环天线选择,从而可保障终端设备的上行信息传输的可靠性,增强通信系统的数据传输可靠性。
参见图5,图5是本申请实施例提供的天线选择方法的另一流程示意图。本申请实施例提供的方法可包括步骤:
S401,网络设备生成下行控制信息DCI。
S402,网络设备向终端设备发送DCI。
可选的,在一些可行的实施方式中,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备的天线选择方式,根据终端设备的天线选择方式确定天线选择指示信息,生成包含该天线选择指示信息的DCI。具体可参见上述实施例中步骤S301至步骤S302所提供的实现方式,在此不再赘述。其中,DCI对应的天线选择指示信息为DCI包含的比特信息。网络设备可向终端设备发送DCI,通过DCI包含的比特信息来指示终端设备从其支持的多根物理天线中选择用于上行传输的一根或者多根第一天线。其中,DCI包含的比特域的比特信息与上述一根或者多根第一天线的对应关系由通信协议规定或者由网络设备基于终端设备的多根天线配置。具体可参见上述实现方式二提供的实现方式,在此不再赘述。
可选的,在一些可行的实施方式中,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备的天线选择方式,根据终端设备的天线选择方式确定天线选择指示信息。具体可参见上述实施例中步骤S301至步骤S302所提供的实现方式,在此不再赘述。 其中,该天线选择指示信息为用于对DCI进行加扰的CRC掩码。网络设备可使用与终端设备用于上行传输的一根或者多根第一天线对应的CRC对DCI进行加扰以得到加扰后的DCI,并向终端设备发送加扰后的DCI。通过加扰后的DCI的CRC掩码指示终端设备从其支持的多根物理天线中选择用于上行传输的一根或者多根第一天线。其中,DCI的CRC掩码与上述一根或者多根第一天线的对应关系由通信协议规定或者由网络设备基于终端设备的多根天线配置。具体可参见上述实现方式一提供的实现方式,在此不再赘述。
可选的,在一些可行的实施方式中,网络设备可根据终端设备的能力信息或者上行传输模式确定终端设备的天线选择方式,根据终端设备的天线选择方式确定天线选择指示信息。具体可参见上述实施例中步骤S301至步骤S302所提供的实现方式,在此不再赘述。其中,上述天线选择指示信息用于指示DCI所占用的时域,包括DCI所占用的子帧或者DCI所占用的时隙。网络设备可在与终端设备用于上行传输的一根或者多根天线对应的时域上向终端设备发送DCI,通过DCI所占用的子帧编号或者时隙编号等时域的标识信息指示终端设备从其支持的多根物理天线中选择用于上行传输的一根或者多根第一天线。其中,上述DCI所占用的时域的标识信息与上述一根或者多根第一天线的对应关系由通信协议规定或者由网络设备基于终端设备的多根天线配置。具体可参见上述实现方式四或者实现方式五提供的实现方式,在此不再赘述。
可选的,网络设备可采用上述各实现方式中任意一个或者多个结合得到的实现方式向终端设备指示用于上行传输的一根或者多根第一天线,具体可参见上述实施例中实现方式一至实现方式五中任一实现方式,在此不再赘述。
S403,终端设备获取DCI对应的天线选择指示信息。
S404,终端设备通过天线选择指示信息指示的一根或者多根天线向网络设备发送信息。
在一些可行的实施方式中,网络设备向终端设备发送DCI,终端设备可从网络设备接收DCI,并获取DCI对应的天选择指示信息,进而可通过天线选择指示信息所指示的一根或者多根天线向网络设备发送信息。具体可参见上述实施例中步骤S301至步骤S305中各步骤所提供的实现方式,在此不再赘述。
在本申请实施例中,在终端设备配置的物理天线三根或者四根或者更多,并且终端设备只能支持其中的一根或者多根等部分物理天线的发送时,终端设备可通过网络设备下发的多种表现形式的天线选择指示信息从其配置的多根物理天线中选择相应的物理天线作为发送天线,并基于网络设备下发的天线选择指示信息所指示的发送天线向网络设备发送信息,实现了终端设备的闭环天线选择,从而可保障终端设备的上行信息传输的可靠性,增强通信系统的数据传输可靠性。
请参见图6,图6是本申请实施例提供的一种通信装置的结构示意图。如图6所示,本申请实施例提供的通信装置60包括处理器601、存储器602、收发器603和总线系统604。
其中,上述处理器601、存储器602和收发器603通过总线系统604连接。
上述存储器602用于存放程序。具体地,程序可以包括程序代码,程序代码包括计算机操作指令。存储器602包括但不限于是随机存储记忆体(random access memory,RAM)、只读存储器(read-only memory,ROM)、可擦除可编程只读存储器(erasable programmable read only memory,EPROM)、或便携式只读存储器(compact disc read-only memory, CD-ROM)。图6中仅示出了一个存储器,当然,存储器也可以根据需要,设置为多个。存储器602也可以是处理器601中的存储器,在此不做限制。
存储器602存储了如下的元素,可执行模块或者数据结构,或者它们的子集,或者它们的扩展集:
操作指令:包括各种操作指令,用于实现各种操作。
操作系统:包括各种系统程序,用于实现各种基础业务以及处理基于硬件的任务。
上述处理器601控制通信装置60的操作,处理器601可以是一个或多个中央处理器(central processing unit,CPU),在处理器601是一个CPU的情况下,该CPU可以是单核CPU,也可以是多核CPU。
具体的应用中,通信装置60的各个组件通过总线系统604耦合在一起,其中总线系统604除包括数据总线之外,还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见,在图6中将各种总线都标为总线系统604。为便于表示,图6中仅是示意性画出。
上述本申请实施例提供的图4或如图5,或者上述各个实施例揭示的终端设备的方法;或者上述本申请实施例提供的图4或如图5,或者上述各个实施例的网络设备的方法可以应用于处理器601中,或者由处理器601实现。处理器601可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器601中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器601可以是通用处理器、数字信号处理器(digital signal processing,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field-programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器602,处理器601读取存储器602中的信息,结合其硬件执行图4或者图5,或者上述各个实施例所描述的终端设备的方法步骤;或者结合其硬件执行图4或者图5,或者上述各个实施例所描述的网络设备的方法步骤。
请参见图7,图7是本申请实施例提供的终端设备的结构示意图。如图7所示,本申请实施例提供的终端设备包括处理器701、存储器702、用户接口703、通信接口704、耦合器705和天线706等功能模块。上述存储器702可对应图6所示的通信装置60的存储器602。上述存储器702用于存放程序。具体地,程序可以包括程序代码,程序代码包括计算机操作指令。存储器702包括但不限于RAM、ROM、EPROM、或CD-ROM等,在此不做限制。此外,上述存储器702也可以是处理器701中的存储器,在此不做限制。
存储器702存储了如下的元素,可执行模块或者数据结构,或者它们的子集,或者它们的扩展集:
操作指令:包括各种操作指令,用于实现各种操作。
操作系统:包括各种系统程序,用于实现各种基础业务以及处理基于硬件的任务。
上述处理器701控制终端设备的操作,处理器701可以是一个或多个CPU。上述本申请 实施例提供的图4或如图5,或者上述各个实施例揭示的终端设备的方法可以应用于处理器701中,或者由处理器701实现。处理器701可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器701可以是通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器702,处理器701读取存储器702中的信息,结合其硬件执行图4或者图5,或者上述各个实施例所描述的终端设备的方法步骤。
上述终端设备的用户接口703主要用于为用户提供输入的接口,获取用户输入的数据。用户接口703可包括多媒体输入和/或输出设备7031、摄像头7032以及显示器7033等等,在此不做限制。用户接口703可以是与终端设备的用户进行交互的信息输入和/或输出模块,例如手机等终端设备的麦克风和/或喇叭,前置和/或后置摄像头以及触控屏等,在此不做限制。可选的,用户接口703还可以包括标准的有线接口、无线接口等,在此不做限制。
终端设备的处理器701可通过一个或者多个通信接口704和耦合器705与天线706等输入设备进行耦合,结合其他功能模块执行图4或者图5,或者上述各个实施例所描述的终端设备所执行的实现方式,具体可参见上述各个实施例提供的实现方式,在此不做限制。这里“耦合”是指两个部件彼此直接或间接地结合。这种结合可以是固定的或可移动性的,这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间通信。
在本申请实施例中,在终端设备配置的物理天线三根或者四根或者更多,并且终端设备只能支持其中的一根或者多根等部分物理天线的发送时,终端设备可其所包括的处理器701等各个功能模块,结合天线706等功能模块从网络设备接收的多种表现形式的天线选择指示信息从其配置的多根物理天线中选择相应的物理天线作为发送天线,并基于网络设备下发的天线选择指示信息所指示的发送天线向网络设备发送信息,实现了终端设备的闭环天线选择,从而可保障终端设备的上行信息传输的可靠性,增强通信系统的数据传输可靠性。
请参见图8,图8是本申请实施例提供的网络设备的结构示意图。如图8所示,本申请实施例提供的网络设备包括处理器801、存储器802、反射器803、接收器804、网络接口807等。其中,上述处理器801、发射器803和接收器804等功能模块可通过耦合器805与天线806等输入设备进行耦合。处理器801可结合耦合的各个功能模块执行图4或者图5,或者上述各个实施例所描述的网络设备所执行的实现方式,具体可参见上述各个实施例提供的实现方式,在此不做限制。这里“耦合”是指两个部件彼此直接或间接地结合。这种结合可以是固定的或可移动性的,这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间通信。
其中,上述存储器802可对应图6所示的通信装置60的存储器602。上述存储器802用于存放程序。具体地,程序可以包括程序代码,程序代码包括计算机操作指令。存储器 802包括但不限于RAM、ROM、EPROM、或CD-ROM等,在此不做限制。此外,上述存储器802也可以是处理器801中的存储器,在此不做限制。
存储器802存储了如下的元素,可执行模块或者数据结构,或者它们的子集,或者它们的扩展集:
操作指令:包括各种操作指令,用于实现各种操作。
操作系统:包括各种系统程序,用于实现各种基础业务以及处理基于硬件的任务。
上述处理器801控制网络设备的操作,处理器801可以是一个或多个CPU。上述本申请实施例提供的图4或如图5,或者上述各个实施例揭示的网络设备的方法可以应用于处理器801中,或者由处理器801实现。处理器801可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器801中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器801可以是通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器802,处理器801读取存储器802中的信息,结合其硬件执行图4或者图5,或者上述各个实施例所描述的网络设备的方法步骤。网络接口807可选的可以包括标准的有线接口、无线接口(如WI-FI接口)等,在此不做限制。
在本申请实施例中,网络设备可在终端设备配置的物理天线三根或者四根或者更多,并且终端设备只能支持其中的一根或者多根等部分物理天线的发送时,根据终端设备所支持的天线选择方式配置终端设备用于上行传输的一个或者多根天线对应的天线选择指示信息,并向终端设备发送。终端设备从网络设备接收的多种表现形式的天线选择指示信息从其配置的多根物理天线中选择相应的物理天线作为发送天线,并基于网络设备下发的天线选择指示信息所指示的发送天线向网络设备发送信息,实现了终端设备的闭环天线选择,从而可保障终端设备的上行信息传输的可靠性,增强通信系统的数据传输可靠性。
本申请实施例提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当该指令在终端设备上运行时,使得终端设备执行上述图4或者图5,或者上述各个实施例所描述的终端设备所执行的实现方式,具体可参见上述各个实施例提供的实现方式,在此不再赘述。
本申请实施例提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当该指令在网络设备上运行时,使得网络设备执行上述图4或者图5,或者上述各个实施例所描述的网络设备所执行的实现方式,具体可参见上述各个实施例提供的实现方式,在此不再赘述。
本申请实施例提供了一种天线选择系统,该天线选择系统包括处理器,该处理器用于与存储器耦合,读取并运行存储器中的指令以支持终端设备实现上述图4或者图5,或者上述各个实施例所描述的终端设备所执行的实现方式,例如,生成或者处理上述各实施例中终端设备所涉及的信息。在一种可能的设计中,上述天线选择系统还包括存储器,该存 储器用于保存终端设备必需的程序指令和数据。该天线选择系统可以由芯片构成,也可以包含芯片和其他分立器件。
本申请实施例提供了一种天线选择系统,该天线选择系统包括处理器,该处理器用于与存储器耦合,读取并运行存储器中的指令以支持网络设备实现上述图4或者图5,或者上述各个实施例所描述的网络设备所执行的实现方式,例如,生成或者处理上述各实施例中网络设备所涉及的信息。在一种可能的设计中,上述天线选择系统还包括存储器,该存储器用于保存网络设备必需的程序指令和数据。该天线选择系统可以由芯片构成,也可以包含芯片和其他分立器件。
本申请实施例还提供了一种包含指令的计算机程序产品,当该计算机程序产品在终端设备上运行时,使得终端设备执行上述图4或者图5,或者上述各个实施例所描述的终端设备所执行的实现方式。
本申请实施例还提供了一种包含指令的计算机程序产品,当该计算机程序产品在网络设备上运行时,使得网络设备执行上述图4或者图5,或者上述各个实施例所描述的网络设备所执行的实现方式。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,该流程可以由计算机程序来指令相关的硬件完成,该程序可存储于计算机可读取存储介质中,该程序在执行时,可包括如上述各方法实施例的流程。而前述的存储介质包括:ROM或RAM、磁碟或者光盘等各种可存储程序代码的介质。

Claims (33)

  1. 一种天线选择的方法,其特征在于,所述方法包括:
    从网络设备接收下行控制信息DCI;
    获取所述DCI对应的天线选择指示信息,所述天线选择指示信息用于指示终端设备的至少三根天线中的一根或多根第一天线;
    通过所述一根或多根第一天线向所述网络设备发送信息。
  2. 根据权利要求1所述的方法,其特征在于,所述DCI对应的天线选择指示信息通过以下一项或者多项表征:
    所述DCI包括的比特信息;
    所述DCI的循环冗余校验校验CRC掩码;以及
    所述DCI所占用的时域的标识信息。
  3. 根据权利要求2所述的方法,其特征在于,所述DCI包括的比特信息为与所述用于上行传输的一根或者多根第一天线对应的比特值;或者
    所述DCI的CRC掩码为与所述用于上行传输的一根或者多根第一天线对应的掩码;
    所述DCI所占用的时域的标识信息满足与所述用于上行传输的一根或者多根第一天线对应的时域标识信息。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,所述终端设备的所述至少三根天线属于至少两个天线分组;
    所述天线选择指示信息用于指示所述至少两个天线分组中的第一天线分组,所述第一天线分组中包括所述一根或多根第一天线。
  5. 根据权利要求4所述的方法,其特征在于,所述至少两个天线分组由通信协议规定。
  6. 根据权利要求4所述的方法,其特征在于,所述天线选择指示信息与所述第一天线分组的对应关系由通信协议规定或者从所述网络设备接收。
  7. 根据权利要求4-6任一项所述的方法,其特征在于,所述方法还包括:
    从所述网络设备接收第一指示信息,所述第一指示信息用于指示所述至少两个天线分组。
  8. 根据权利要求4-6任一项所述的方法,其特征在于,所述方法还包括:
    向所述网络设备发送第二指示信息,所述第二指示信息用于指示所述至少两个天线分组。
  9. 根据权利要求7所述的方法,其特征在于,所述从所述网络设备接收第一指示信息包括:
    从所述网络设备接收无线资源控制RRC信令,所述RRC信令包括所述第一指示信息;或者,
    从所述网络设备接收媒体访问控制控制元素MAC CE信令,所述MAC CE信令包括所述第一指示信息。
  10. 根据权利要求1-9任一项所述的方法,其特征在于,所述方法还包括:
    向所述网络设备上报能力信息,所述能力信息用于指示所述终端设备支持从至少三根 天线中选择一根或多根天线。
  11. 根据权利要求10所述的方法,其特征在于,所述能力信息用于指示所述终端设备支持1T4R、2T4R、1T8R以及2T8R中的一种或者多种。
  12. 根据权利要求1-9任一项所述的方法,其特征在于,所述天线选择指示信息基于所述终端设备的上行传输模式的。
  13. 根据权利要求1-12任一所述的方法,其特征在于,所述天线选择指示信息与所述一根或多根第一天线的对应关系是通信协议规定的或者是从所述网络设备接收的。
  14. 一种天线选择的方法,其特征在于,所述方法包括:
    生成下行控制信息DCI;
    向终端设备发送所述DCI;
    其中,所述DCI对应的天线选择指示信息用于指示所述终端设备的至少三根天线中用于上行传输的的一根或者多根第一天线。
  15. 根据权利要求14所述的方法,其特征在于,所述DCI对应的天线选择指示信息通过以下一项或者多项表征:
    所述DCI包括的比特信息;
    所述DCI的循环冗余校验校验CRC掩码;以及
    所述DCI所占用的时域的标识信息。
  16. 根据权利要求15所述的方法,其特征在于,所述DCI包括的比特信息为与所述用于上行传输的一根或者多根第一天线对应的比特值;或者
    所述DCI的CRC掩码为与所述用于上行传输的一根或者多根第一天线对应的掩码;
    所述DCI所占用的时域的标识信息满足与所述用于上行传输的一根或者多根第一天线对应的时域标识信息。
  17. 根据权利要求14-16任一项所述的方法,其特征在于,所述终端设备的所述至少三根天线属于至少两个天线分组;
    所述天线选择指示信息用于指示所述至少两个天线分组中的第一天线分组,所述第一天线分组中包括所述一根或者多根第一天线。
  18. 根据权利要求17所述的方法,其特征在于,所述至少两个天线分组由通信协议规定。
  19. 根据权利要求17所述的方法,其特征在于,所述天线选择指示信息与所述第一天线分组的对应关系由通信协议规定或者基于所述至少两个天线分组配置。
  20. 根据权利要求17-19任一项所述的方法,其特征在于,所述方法还包括:
    向所述终端设备发送第一指示信息,所述第一指示信息用于指示所述至少两个天线分组。
  21. 根据权利要求17-19任一项所述的方法,其特征在于,所述方法还包括:
    从所述终端设备接收第二指示信息,所述第二指示信息用于指示所述至少两个天线分组。
  22. 根据权利要求20所述的方法,其特征在于,所述向所述终端设备发送第一指示信息包括:
    向所述终端设备发送无线资源控制RRC信令,所述RRC信令包括所述第一指示信息;或者,
    向所述终端设备发送媒体访问控制控制元素MAC CE信令,所述MAC CE信令包括所述第一指示信息。
  23. 根据权利要求14-22任一项所述的方法,其特征在于,所述方法还包括:
    确定所述天线选择指示信息。
  24. 根据权利要求23所述的方法,其特征在于,所述确定所述天线选择指示信息包括:
    根据所述终端设备的能力信息确定所述天线选择指示信息,所述能力信息用于指示所述终端设备支持从至少三根天线中选择一根或多根天线的能力。
  25. 根据权利要求23所述的方法,其特征在于,所述确定所述天线选择指示信息包括:
    基于所述终端设备的上行传输模式确定所述天线选择指示信息。
  26. 根据权利要求24或25所述的方法,其特征在于,所述能力信息和/或所述上行传输模式用于指示所述终端设备支持1T4R、2T4R、1T8R以及2T8R中的一种或者多种。
  27. 根据权利要求14-26任一项所述的方法,其特征在于,所述天线选择指示信息与所述一根或多根第一天线的对应关系是通信协议规定的。
  28. 一种通信装置,其特征在于,包括处理器;其中,
    所述处理器用于与存储器耦合,读取并运行所述存储器中的指令,以实现如权1-13任一所述的方法。
  29. 根据权利要求28所述的通信装置,其特征在于,所述通信装置还包括所述存储器。
  30. 一种通信装置,其特征在于,包括处理器;其中,
    所述处理器用于与存储器耦合,读取并运行所述存储器中的指令,以实现如权14-27任一所述的方法。
  31. 根据权利要求30所述的通信装置,其特征在于,所述通信装置还包括所述存储器。
  32. 一种包含指令的计算机程序产品,其特征在于,所述计算机程序产品在终端设备上运行时,使得所述终端设备执行如权利要求1-13任一项所述的方法。
  33. 一种包含指令的计算机程序产品,其特征在于,所述计算机程序产品在网络设备上运行时,使得所述网络设备执行如权利要求14-27任一项所述的方法。
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