WO2018227752A1 - 数据传输方法及相关设备 - Google Patents

数据传输方法及相关设备 Download PDF

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Publication number
WO2018227752A1
WO2018227752A1 PCT/CN2017/098147 CN2017098147W WO2018227752A1 WO 2018227752 A1 WO2018227752 A1 WO 2018227752A1 CN 2017098147 W CN2017098147 W CN 2017098147W WO 2018227752 A1 WO2018227752 A1 WO 2018227752A1
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WO
WIPO (PCT)
Prior art keywords
terminal
physical layer
information
area
transmission mode
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PCT/CN2017/098147
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English (en)
French (fr)
Inventor
孙彦良
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780057953.3A priority Critical patent/CN109716667A/zh
Publication of WO2018227752A1 publication Critical patent/WO2018227752A1/zh

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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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a data transmission method and related devices.
  • the standardization organization 3GPP launched the New RAT (NR) SI project in the first half of 2016, which is aimed at the fifth-generation mobile communication technology (5th-Generation, 5G), including physical layer signal design, high-level network segmentation, and signaling process.
  • 5G fifth-generation mobile communication technology
  • the New RAT (NR) study can eliminate the need to consider backward compatibility with the long-term evolution of the Long Term Evolution (LTE) system. Instead, it can be based on predictions of future technology trends in the technical solution. In the design, add some forward compatibility considerations.
  • the frequency band coverage of NR research is wider, and it is hoped to establish a unified air interface technology framework in sub-6GHz (0-6GHz) and above-6GHz (6-100GHz).
  • sub-6GHz sub-6GHz
  • 6-100GHz 6-100GHz
  • Beamforming technology has been discussed in LTE. If the antenna array is a line array or a planar array, then based on a discrete Fourier transform (DFT) codebook, the transmitting end can generate a beam with good main lobe directionality.
  • DFT discrete Fourier transform
  • the concept of Beam Pair Link is established, and one BPL represents the pairing of one base station side beam and one terminal side beam.
  • the establishment of BPL is based on the beam management process.
  • the beam management process is a series of processes based on the transmission and measurement of reference signals to obtain uplink and downlink beam pairing information.
  • the BPL information is managed on the base station side, and the terminal is notified by signaling.
  • the traditional LTE uplink definition in the process of designing the simultaneous transmission of the control channel and the data channel, does not involve a beam management process for the low frequency band design, and the antenna array gain is low.
  • the present application proposes a data transmission method and related equipment, so that the multi-antenna transmission mode adopted for data transmission is based on beam pairing output by the beam management process, which improves the antenna array gain and the paired beam transmission determined by the beam management process. The reliability of data transmission.
  • a data transmission method including:
  • the terminal transmits the physical layer control information by using the first multi-antenna transmission mode, and transmits the physical layer control information and the physical layer data information by using the second multi-antenna transmission mode;
  • the first multi-antenna transmission mode and the second multi-antenna transmission mode are the same beam pairing set output based on the same beam management process, and the beam pairing set includes the paired terminal side beam.
  • the embodiment of the present application enables the multi-antenna transmission mode used for data transmission to be based on beam pairing output by the beam management process, improves the array gain of the antenna, and the paired beam transmission determined by the beam management process, thereby improving the reliability of data transmission.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission. Delay, and ensure that the reliability of physical layer control information transmission is greater than the physical layer data letter The reliability of the transmission.
  • the terminal transmits the physical layer control information on each orthogonal frequency division multiplexing modulated OFDM symbol in the first region, and uses the paired terminal side beam in the beam pairing set to transmit the physical layer control information;
  • the network device schedules an area of the uplink transmission time-frequency resource block for transmitting the physical layer control information to the terminal.
  • the first area of the embodiment of the present application adopts a diversity technology, and the diversity technology improves the quality of physical layer data information transmission.
  • the terminal generates a physical layer data information by transmitting a beam of the terminal side of the M layer based on the paired terminal side beams in the beam pairing set in the second region, where M is greater than zero and A positive integer that is less than or equal to the number of beams of the paired terminal side; the second area is an area of the uplink transmission time-frequency resource block that the network device schedules to transmit the physical layer data information to the terminal.
  • the second area of the embodiment of the present application adopts a spatial multiplexing technology, and the spatial multiplexing technology improves the number of physical layer control data information transmission.
  • the terminal receives the first modulation and coding indication information, and the acknowledgement information or the non-acknowledgment information of the physical layer data information transmission, where the first modulation and coding indication information includes the first modulation and coding parameter MCS or the first rank indication.
  • the first modulation and coding indication information includes the first modulation and coding parameter MCS or the first rank indication.
  • the terminal adjusts the first modulation and coding indication information according to the acknowledgement information or the non-confirmation information, and obtains the second modulation and coding indication information, where the second modulation and coding indication information includes the second MCS or the second RI;
  • the second RI is the number M of transmission layers.
  • the physical layer control information includes a second MCS of each of the transport layer number M and the transport layer number M.
  • the first area and the second area occupy the same uplink transmission time-frequency resource block that is scheduled to be sent to the terminal, and the uplink transmission time-frequency resource block is continuous in the time domain and the frequency domain.
  • the waveform of the physical layer control information and the physical layer data information sent by the terminal is a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform
  • the first region and the second region have the same time domain, different frequency domains, and the first region and the second region are adjacent in the frequency domain.
  • the waveform of the physical layer control information and the physical layer data information sent by the terminal is a discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM waveform
  • the first region and the second region have the same frequency domain, different time domains, and the first region and the second region are adjacent in the time domain.
  • the first area and the second area can share a power control process, avoiding the first area and the The second area separately designs the power control flow, which reduces the signaling overhead.
  • Another data transmission method including:
  • the network device sends beam indication information to the terminal, where the beam indication information includes a beam pairing set output by the beam management process, and the beam pairing set includes a paired terminal side beam;
  • the beam management process is based on the first multi-antenna transmission mode and the second multi-antenna transmission mode;
  • the first multi-antenna transmission mode is a multi-antenna transmission mode used by the terminal to transmit physical layer control information
  • the second multi-antenna transmission mode is a multi-antenna transmission mode used by the terminal to transmit physical layer data information.
  • the network device sends configuration information to the terminal, where the configuration information includes that the first area occupies a sub-band width of an uplink transmission time-frequency resource block scheduled to be sent to the terminal, or the first area occupies an uplink transmission scheduled to the terminal.
  • the orthogonal frequency division multiplexing of the time-frequency resource block modulates the number of symbols of the OFDM.
  • the network device sends the first modulation and coding indication information, and the acknowledgement information or the non-acknowledgment information of the physical layer data information transmission to the terminal, where the first modulation and coding indication information includes the first modulation and coding parameter MCS or the first a rank indicating RI;
  • the first modulation coding indication information, the acknowledgement information of the physical layer data information transmission, or the non-confirmation information is used to determine the number of transmission layers of the physical layer data information.
  • a terminal comprising a module or unit for performing the data transmission method of the above first aspect.
  • a network device comprising a module or unit for performing the data transmission method of the second aspect described above.
  • a terminal in a fifth aspect, includes a processor, a communication module, and a memory, and the memory is configured to store instructions.
  • the instructions for the processor to read the memory perform the data transfer method of the first aspect described above.
  • a network device in a sixth aspect, includes a processor, a communication module, and a memory, and the memory is configured to store instructions.
  • the instructions for the processor to read the memory perform the data transfer method of the second aspect described above.
  • a computer storage medium for storing computer software instructions for use in the terminal, comprising a program designed to perform the first aspect described above.
  • a computer storage medium for storing computer software instructions for use in the network device, comprising a program designed to perform the second aspect described above.
  • the embodiment of the present application enables the multi-antenna transmission mode used for data transmission to be based on beam pairing output by the beam management process, improves the array gain of the antenna, and the paired beam transmission determined by the beam management process, thereby improving the reliability of data transmission.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission.
  • the delay and the reliability of the physical layer control information transmission are greater than the reliability of the physical layer data information transmission.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • 3A is a schematic diagram of a first area and a second area provided by an embodiment of the present application.
  • FIG. 3B is a schematic diagram of still another first region and a second region according to an embodiment of the present application.
  • 3C is a schematic diagram of still another first region and a second region provided by the embodiment of the present application.
  • FIG. 4A is a schematic diagram of still another first region and a second region provided by an embodiment of the present application.
  • 4B is a schematic diagram of still another first area and a second area provided by the embodiment of the present application.
  • 4C is a schematic diagram of still another first region and a second region provided by the embodiment of the present application.
  • 4D is a schematic diagram of still another first region and a second region provided by the embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of still another terminal according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of still another network device according to an embodiment of the present application.
  • the communication system 100 includes a terminal 101 and a network device 102.
  • the terminal 101 and the network device 102 communicate through air interfaces. among them:
  • Terminal 101 is a device that provides voice and/or data connectivity to a user, a handheld device with wired/wireless connectivity, or other processing device that is connected to a wireless modem.
  • the terminal 101 can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal 101 can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, and can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges with the RAN.
  • the terminal 101 may also be referred to as a user agent (User Agent) or a user device (User Device).
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistants
  • the terminal 101 may also be referred to as a user agent (User Agent) or a user device (User Device).
  • Network device 102 is a device deployed in a wireless access network to provide wireless communication functionality to terminal 101.
  • Network devices may include various forms of macro base stations, micro base stations, relay stations, access points, and the like.
  • the names of devices having the functions of the network device 102 may be different.
  • the network device 102 may be referred to as a network device in a new wireless technology (New Radio, NR).
  • New Radio NR
  • the SCDMA system may be referred to as a base station (NodeB, NB), or may also be referred to as an evolved Node B (eNB) or the like in the LTE system.
  • NodeB NodeB
  • eNB evolved Node B
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an embodiment of the present application provides a schematic flowchart of a data transmission method, where the method includes but is not limited to the following steps:
  • the terminal sends physical layer control information by using a first multi-antenna transmission mode.
  • the terminal sends physical layer data information by using a second multi-antenna transmission mode.
  • the embodiment of the present application uses the "first" and the "second" to distinguish the multi-antenna transmission mode used by the terminal to transmit the physical layer control information and the physical layer data information, and the multi-antenna transmission mode may be a mode for transmitting data through multiple antennas. It can be understood that the first multi-antenna transmission mode and the second multi-antenna transmission mode may be the same multi-antenna transmission mode, or may be different multi-antenna transmission modes, which are not limited herein.
  • the first multi-antenna transmission mode and the second multi-antenna transmission mode may be jointly based on the same beam pairing set output by the same beam management process, and the beam pairing set may include a paired terminal side beam.
  • the paired terminal side beam and the paired network device side beam may be jointly based on the same beam pairing set output by the same beam management process.
  • the beam management process may include the following steps:
  • Step 11 The terminal sends an uplink beam measurement reference signal to the network device.
  • Step 13) The network device sends beam indication information to the terminal, where the beam indication information includes the determined paired terminal side beam.
  • Step 14 The terminal receives beam indication information sent by the network device.
  • the terminal sends four uplink beam measurement reference signals (uplink beam measurement reference signals 1, 3, 4, and 8) to the network device, and the network device performs based on the four uplink beam measurement reference signals and the matched downlink receive beams.
  • uplink beam measurement reference signals uplink beam measurement reference signals 1, 3, 4, and 8
  • the network device performs based on the four uplink beam measurement reference signals and the matched downlink receive beams.
  • Corresponding receiving strength calculations determining uplink beams 1, 3 and 8 whose receiving strength is greater than a preset intensity threshold from the four uplink beam measurement reference signals, that is, determining the paired terminal side beams 1, 3 and 8.
  • the first multi-antenna transmission mode and the second multi-antenna transmission mode may jointly transmit physical layer control information and physical respectively based on the paired terminal-side beams 1, 3, and 8 output by the beam management flow of the above steps 11) to 14) Layer data information.
  • the beam management process may include the above steps 11) to 14) and the following steps:
  • Step 22 The terminal performs corresponding receiving strength calculation and beam selection (ie, determining a paired network device side beam) based on the downlink beam measurement reference signal and the matched uplink receiving beam.
  • the network device sends four downlink beam measurement reference signals (downlink beam measurement reference signals 1, 2, 3, and 4) to the terminal, and the terminal responds according to the four downlink beam measurement reference signals and the matched uplink receiving beams.
  • the received strength calculation determines the downlink beams 1 and 2 whose received strength is greater than the preset intensity threshold from the four downlink beam measurement reference signals, that is, determines the paired network device side beams 1, 2, and 3. It can be seen that the sequence numbers 1, 2, 3, and 4 of the beam are actually the sequence numbers of the downlink measurement reference signals.
  • the first multi-antenna transmission mode and the second multi-antenna transmission mode may be based on the paired terminal-side beams 1, 3 and 8 and the beam management flow output of step 11) to step 14) and step 21), step 22)
  • the paired network device side beams 1, 2, and 3 respectively transmit physical layer control information and physical layer data information.
  • the network device may send the beam indication information to the terminal by using high layer signaling, such as a radio resource control message.
  • high layer signaling such as a radio resource control message.
  • the paired terminal side beam may be a semi-static configuration.
  • the multi-antenna transmission mode used for data transmission is based on beam pairing output by the beam management process, the antenna array gain is improved, and the paired beam transmission determined by the beam management process is performed. Improve the reliability of data transmission.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission.
  • the delay and the reliability of the physical layer control information transmission are greater than the reliability of the physical layer data information transmission.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • step S201 may be: the terminal is on each Orthogonal Frequency Division Multiplexing (OFDM) symbol in the first region.
  • the loop uses the paired terminal side beams in the beam pairing set to transmit physical layer control information.
  • Step S202 may be: the terminal generates a physical layer data information by transmitting a beam of the terminal side with the number of transmission layers M based on the beam of the terminal side in the beam pairing set in the second area, where M is greater than zero and less than or equal to the paired terminal. A positive integer of the number of beams on the side.
  • the first area may be an area that occupies the physical layer control information of the uplink transmission time-frequency resource block that is scheduled to be sent to the terminal, and the second area may occupy an area of the uplink transmission time-frequency resource block that is scheduled to be sent to the terminal to send physical layer data information.
  • the uplink transmission time-frequency resource block that is allocated to the terminal by the first area and the second area may be the same time-frequency resource block that is continuous in both the time domain and the frequency domain, and the first area And the second area is on the uplink transmission time-frequency resource block, the time domain is the same, the frequency domain is different, and the first area and the second area are adjacent in the frequency domain.
  • the network device may notify the configuration of the waveform of the terminal by using high-level signaling, such as a radio resource control message, or when the terminal is in an idle state, the network device may pass the message2 in the random access process. Notify the configuration of the terminal waveform. If the network device notifies the terminal that the waveform is a cyclic prefixed orthogonal frequency division multiplexing (CP-OFDM) waveform, the network device may send the first configuration information to the terminal, where the first configuration information may indicate the first The area occupies a subband width of an uplink transmission time-frequency resource block that is scheduled to be sent to the terminal, and the terminal receives the first configuration information.
  • CP-OFDM cyclic prefixed orthogonal frequency division multiplexing
  • the first area may be an area of the uplink transmission time-frequency resource block, and the sub-band width is an area of the sub-band width indicated by the first configuration information, where the second area may be in the uplink transmission time-frequency resource block, except The area outside the first area; or the first area may be the center position of the uplink transmission time-frequency resource block, the sub-band width is the area of the sub-band width indicated by the first configuration information, and the second area may be the uplink transmission In the time-frequency resource block, an area other than the first area, and the like.
  • the first area and the second area are on the uplink transmission time-frequency resource block, the time domain is the same, the frequency domain is different, and the first area and the second area are adjacent in the frequency domain.
  • FIG. 3A a schematic diagram of a first area and a second area shown in FIG. 3A, where the entire area shown in FIG. 3A is an uplink transmission time-frequency resource block scheduled by the network device, if the terminal receives the first configuration.
  • the information indicates that the first area occupies the sub-band width of the time-frequency resource block is delta_1, and the unit of the delta_1 is a physical resource block (PRB).
  • the first area may be the uplink.
  • the network device may send the first configuration information to the terminal by using high-layer signaling, such as a radio resource control message, where the first area and the second area may be semi-statically configured through high-level signaling, thereby reducing physical layer control information and Transmission delay of physical layer data information.
  • high-layer signaling such as a radio resource control message
  • the paired terminal side beams in the beam pairing set may be cyclically configured in a sequential order or in another order, such as random, etc., and the terminal may be configured in the first region.
  • the beam on each OFDM symbol transmits physical layer control information.
  • the physical layer control information can be transmitted at a fixed rate.
  • a schematic diagram of still another first region and a second region shown in FIG. 3B, the first region from left to right OFDM symbols: symbol 1 to symbol 14, may be cyclically configured with the pairing in the beam pairing set described above.
  • the paired terminal side beams in the beam pairing set may be cyclically configured in a cyclic mode, and the terminal may use a beam configured on each OFDM symbol in the first region.
  • the physical layer control information is sent.
  • the loop mode may be as follows: x is a radio frame number, y is an ID number of the terminal, z is a symbol sequence number, k is a number of beams, and BeamID is a sequence number of the beam. Based on the analysis of the first embodiment, the sequence number of the beam is actually the sequence number of the downlink measurement reference signal.
  • ⁇ A, B, C, D ⁇ are integers unrelated to x, y, z.
  • the configured beam is beam 2, ie:
  • the configured beam is beam 2, ie:
  • the first region adopts the transmission diversity technology, which improves the quality of the physical layer control information transmission.
  • the number of transmission layers M may be based on a first modulation and coding scheme (MCS), a first rank indication (RI), and one or more acknowledgements given by the network device. (Acknowledgement, ACK) or Non-Acknowledgement (NACK) information is determined.
  • MCS modulation and coding scheme
  • RI first rank indication
  • ACK Acknowledgement
  • NACK Non-Acknowledgement
  • the process of determining the number of the transmission layers M may be: the network device sends the first modulation coding indication information to the terminal, and the terminal receives the first modulation coding indication information, where the first modulation coding indication information includes the first MCS or the first RI
  • the terminal receives the first MCS and the first RI.
  • the first RI is a range of values of the second RI
  • the first MCS is an initial value of the second MCS for each transport layer under each optional RI within a range of values defined by the first RI.
  • Terminal will be the first
  • the lower limit of the value range in the RI is determined as the initial value of the second RI
  • the MCS of each transport layer in the second RI in the first MCS is determined as the initial value of the second MCS.
  • the terminal may raise the second MCS, and the second RI does not change; or, when the number of ACK information received by the terminal is greater than the first preset
  • the threshold may be that the terminal may raise the second RI and determine that the MCS of each transport layer corresponding to the new second RI in the first MCS is the second MCS, and the second RI is the number M of transport layers.
  • the terminal may generate the physical layer data information based on the paired terminal side beam in the beam pairing set, the beam on the terminal side whose transmission layer number is the second RI, or the transmission rate is the rate corresponding to the second MCS.
  • the terminal sends the second RI and the second MCS to the network device through the uplink physical control channel.
  • the network device can receive the uplink physical control channel, determine the RI and MCS used for the uplink data transmission, and further decode the uplink data packet.
  • the first MCS is 5, the first RI is 1 to 2, the initial value of the second RI may be the lower limit 1 of the value range in the first RI, and the initial value of the second MCS may be the first MCS, when the terminal receives When the number of ACK information is greater than the first preset threshold, the terminal may raise the second MCS, for example, increase the second MCS to 6, and the second RI may still be the initial value, if the beam pairing set is used.
  • the value 5 does not change and can be lowered. For example, if the paired terminal-side beams in the beam pairing set are beams 1, 3, and 8, the terminal may pass any two of the beams 1, 3, and 8, and the two beams may all be initialized with the second MCS.
  • the physical layer data information is sent at a rate corresponding to the value of 5, or one of the two beams transmits physical layer data information at a rate corresponding to the second MCS of 4, and the other beam transmits the physical layer at a rate corresponding to the second MCS. Data information.
  • the second RI that is, the number of transmission layers M of the physical layer data information sent by the terminal side, may be greater than zero and less than or equal to the paired terminal side beams in the beam pairing set described in Embodiment 1.
  • the second area may also be divided into multiple sub-bands in order to meet the requirements of different sub-bands in the second area for quality of service (QoS).
  • QoS quality of service
  • Each of the plurality of subbands divided by the second region may have a different number of transmission layers and an MCS corresponding to each number of transmission layers, and the terminal may generate each subband based on the paired terminal side beams in the beam pairing set.
  • each of the sub-bands may have different The number of transmission layers and the number of MCSs corresponding to the number of transmission layers, the terminal may generate a beam on the terminal side of the number of transmission layers of each subband based on the paired terminal side beams in the beam pairing set, and corresponding to each transmission layer number
  • the MCS transmits physical layer data information, and each of the OFDM symbols in another partial sub-band is configured with one of the above-mentioned beam pairing sets, and the terminal may transmit by using a beam configured on each OFDM symbol in the first region.
  • the terminal configuration may be adopted data beam transmitter physical layer information on each OFDM symbol in the first region.
  • the second MCS and the second RI on each subband, and the configuration of each subband are sent to the network device through a physical uplink control channel. In this way, the network device can receive the uplink physical control channel, determine the RI and MCS used for the uplink data transmission, and the sub-bands divided by the uplink transmission, thereby implementing decoding of the uplink data packet.
  • the network device may transmit the area division of the second area by using high layer signaling, such as a radio resource control message transmission.
  • high layer signaling such as a radio resource control message transmission.
  • Information in order to reduce the overhead of signaling, the division of the subbands in the second region may be a semi-static configuration.
  • the second region shown in FIG. 3C divides two sub-bands, sub-band 1 and sub-band 2, and sub-band 1 and sub-band 2 have the same time domain and different frequency domains.
  • the first region of the embodiment of the present application adopts a diversity technology
  • the diversity technology improves the quality of the physical layer control information transmission
  • the second region adopts a spatial multiplexing technology, which improves the number of physical layer data information transmission.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the step S201 may be: the terminal uses the paired terminal side beam in the beam pairing set to cycle on each OFDM symbol in the first area.
  • Step S202 may be: the terminal generates a physical layer data information by transmitting a beam of the terminal side with the number of transmission layers M based on the paired terminal side beams in the beam pairing set in the second area, where M is greater than zero and less than or equal to the pairing. The number of beams on the terminal side.
  • the first area may be an area that occupies the physical layer control information of the uplink transmission time-frequency resource block that is scheduled to be sent to the terminal, and the second area may occupy an area of the uplink transmission time-frequency resource block that is scheduled to be sent to the terminal to send physical layer data information.
  • the first area and the second area are on the uplink transmission time-frequency resource block, the frequency domain is the same, the time domain is different, and the first area and the second area are adjacent in the time domain.
  • the network device may notify the configuration of the waveform of the terminal by using high-level signaling, such as a radio resource control message, or when the terminal is in an idle state, the network device may pass the message2 in the random access process. Notify the configuration of the terminal waveform. If the network device notifies the terminal that the waveform is a Discrete Fourier Transform Spreading Frequency Division Multiplexing (DFT-s-OFDM) waveform, the network device may send the second configuration information to the terminal, where the The second configuration information may indicate that the first area occupies the number of OFDM symbols of the uplink transmission time-frequency resource block scheduled to the terminal, and the terminal receives the second configuration information.
  • DFT-s-OFDM Discrete Fourier Transform Spreading Frequency Division Multiplexing
  • the first area may be an area of the left edge of the uplink transmission time-frequency resource block, where the number of OFDM symbols is the number of OFDM symbols indicated by the second configuration information
  • the second area may be the uplink transmission time-frequency resource block, An area other than the first area, and the like.
  • the first area and the second area are on the uplink transmission time-frequency resource block, the frequency domain is the same, the time domain is different, and the first area and the second area are adjacent in the time domain.
  • FIG. 4A a schematic diagram of still another first area and a second area shown in FIG. 4A
  • the entire area shown in FIG. 4A is an uplink transmission time-frequency resource block scheduled by the network device for the terminal, and if the terminal receives the second
  • the configuration information indicates that the number of OFDM symbols occupied by the first area occupying the time-frequency resource block is symbol_1, as shown in FIG. 4A, the first area may be the left edge of the uplink transmission time-frequency resource block, and the number of OFDM symbols is symbol_1
  • the area, the second area may be an area of the uplink transmission time-frequency resource block except the first area.
  • the network device may send the first configuration information to the terminal by using high-layer signaling, such as a radio resource control message, where the first area and the second area may be semi-statically configured through the high-level information.
  • high-layer signaling such as a radio resource control message
  • the scheduling of the first area and the second area can share a set of uplink resource scheduling signaling, which reduces the transmission delay of the physical layer control information and the physical layer data information.
  • a pair of terminal beam beams in the pair of beam pairings may be cyclically configured in a sequential order or in another order, such as random, etc.; or
  • the paired terminal side beams in the above beam pairing set are cyclically arranged in a cyclic mode.
  • the terminal can be configured in The beam on each OFDM symbol in the first region transmits physical layer control information. I will not repeat them here.
  • a schematic diagram of still another first region and a second region shown in FIG. 4B, the first region from left to right OFDM symbols: symbol 1 to symbol 4, may be sequentially configured with paired terminals in the beam pairing set described above Beams on the side: Beam 1, Beam 3, and Beam 8, that is, symbol 1 is configured with beam 1, symbol 2 is configured with beam 3, symbol 3 is configured with beam 8, and symbol 4 is configured with beam 1.
  • the first area may be further divided into multiple sub-bands, and the paired terminal side beams in the beam pairing set are respectively configured on different OFDM symbols of the same sub-band.
  • the first region shown in FIG. 4C is further divided into four sub-bands: sub-band 1, sub-band 2, sub-band 3, and sub-band 4, as shown in FIG. 4C, in sub-band 1
  • the OFDM symbol 1 can be configured with the paired terminal side beam 1 in the beam pairing set
  • the OFDM symbol 2 in the subband 1 can be configured with the paired terminal side beam 3 and subband 1 in the beam pairing set.
  • the OFDM symbol 3 can be configured with the paired terminal side beam 8 in the beam pairing set
  • the OFDM symbol 4 in the subband 1 can be configured with the paired terminal side beam 1 and subband 2 in the beam pairing set.
  • the OFDM symbol 1 can be configured with the paired terminal side beam 3 and the like in the above beam pairing set.
  • the number of transmission layers M may be determined based on a first modulation and coding parameter MCS, a first rank indication RI, and one or more acknowledgement ACKs or non-determined NACK information given by the network device.
  • the second region may also be divided into multiple sub-bands.
  • Each of the plurality of subbands divided by the second region may have a different number of transmission layers and an MCS corresponding to each number of transmission layers, and the terminal may generate each subband based on the paired terminal side beams in the beam pairing set.
  • each of the sub-bands may have different The number of transmission layers and the number of MCSs corresponding to the number of transmission layers, the terminal may generate a beam on the terminal side of the number of transmission layers of each subband based on the paired terminal side beams in the beam pairing set, and corresponding to each transmission layer number
  • the MCS transmits physical layer data information, and each of the OFDM symbols in another partial sub-band is configured with one of the above-mentioned beam pairing sets, and the terminal may transmit by using a beam configured on each OFDM symbol in the first region.
  • the terminal configuration may be adopted data beam transmitter physical layer information on each OFDM symbol in the first region.
  • the second region shown in FIG. 4D divides two sub-bands, sub-band 1 and sub-band 2, and sub-band 1 and sub-band 2 have the same time domain and different frequency domains.
  • the network device may transmit the split information of the area in the second area by using the high-layer signaling, such as the RRC message.
  • the sub-band division in the second area may be a semi-static configuration.
  • the first region of the embodiment of the present application adopts a diversity technology
  • the diversity technology improves the quality of the physical layer control information transmission
  • the second region adopts a spatial multiplexing technology, which improves the number of physical layer data information transmission.
  • the first area and the second area of the uplink transmission time-frequency resource block that are allocated to the terminal and are consecutive in the time domain and the frequency domain the first area and the second area
  • the transmission process on the area has a high similarity and can overcome the requirement of the power control path loss.
  • the first area and the second area can share a power control flow, avoiding being separate for the first area and the second area. Designing a power control flow that reduces the signaling pin.
  • the embodiment of the present application further provides a terminal, which can be applied to the foregoing method embodiments.
  • a schematic structural diagram of a terminal provided by an embodiment of the present disclosure may include:
  • the sending unit 501 is configured to send physical layer control information by using a first multi-antenna transmission mode, and send physical layer control information and physical layer data information by using a second multi-antenna transmission mode;
  • the first multi-antenna transmission mode and the second multi-antenna transmission mode are the same beam pairing set output based on the same beam management process, and the beam pairing set includes the paired terminal side beam.
  • the sending unit 501 is configured to: in each of the orthogonal frequency division multiplexing modulated OFDM symbols in the first region, cyclically use the paired terminal side beams in the beam pairing set to send physical layer control information;
  • the area is an area of the uplink transmission time-frequency resource block that the network device schedules to transmit the physical layer control information to the terminal.
  • the sending unit 501 is configured to generate, according to the paired terminal side beam in the beam pairing set, a beam of the terminal side with the transmission layer number M, to send physical layer data information, where M is greater than zero. And a positive integer that is less than or equal to the number of beams of the paired terminal side; the second area is an area of the uplink transmission time-frequency resource block that the network device schedules to transmit the physical layer data information to the terminal.
  • the terminal further includes:
  • the receiving unit 502 is configured to receive first modulation and coding indication information, and acknowledgment information or non-confirmation information of physical layer data information transmission, where the first modulation coding indication information includes a first modulation coding parameter MCS or a first rank indication RI;
  • the processing unit 503 is configured to adjust the first modulation and coding indication information according to the acknowledgement information or the non-confirmation information, to obtain the second modulation and coding indication information, where the second modulation and coding indication information includes the second MCS or the second RI;
  • the second RI is the number M of transmission layers.
  • the physical layer control information includes a second MCS of each of the transport layer number M and the transport layer number M.
  • the first area and the second area occupy the same uplink time-frequency resource block that is scheduled to be sent to the terminal, and the uplink transmission time-frequency resource block is continuous in the time domain and the frequency domain.
  • the waveform of the physical layer control information and the physical layer data information sent by the terminal is a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform;
  • CP-OFDM orthogonal frequency division multiplexing
  • the first region and the second region have the same time domain, different frequency domains, and the first region and the second region are adjacent in the frequency domain.
  • the waveform of the physical layer control information and the physical layer data information sent by the terminal is a discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM waveform;
  • the first region and the second region have the same frequency domain, different time domains, and the first region and the second region are adjacent in the time domain.
  • the multi-antenna transmission mode adopted for data transmission is based on beam pairing outputted by the beam management process, the antenna array gain is improved, and the paired beam transmission determined by the beam management process is improved, and the data transmission is improved. reliability.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission.
  • the delay and the reliability of the physical layer control information transmission are greater than the reliability of the physical layer data information transmission.
  • the embodiment of the present application further provides a network device, which can be applied to the foregoing method embodiments.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure, which may include:
  • the sending unit 601 is configured to send beam indication information to the terminal, where the beam indication information includes a beam pairing set output by the beam management process, where the beam pairing set includes a paired terminal side beam;
  • the beam management process is based on the first multi-antenna transmission mode and the second multi-antenna transmission mode;
  • the first multi-antenna transmission mode is a multi-antenna transmission mode used by the terminal to transmit physical layer control information
  • the second multi-antenna transmission mode is a multi-antenna transmission mode used by the terminal to transmit physical layer data information.
  • the sending unit 601 is further configured to send configuration information to the terminal, where the configuration information includes that the first area occupies a sub-band width of an uplink transmission time-frequency resource block that is scheduled to be sent to the terminal, or the first area occupies an uplink that is scheduled to be sent to the terminal.
  • the number of symbols of OFDM is modulated by orthogonal frequency division multiplexing of transmission time-frequency resource blocks.
  • the sending unit 601 is further configured to send the first modulation and coding indication information, and the acknowledgement information or the non-confirmation information of the physical layer data information transmission to the terminal, where the first modulation and coding indication information includes the first modulation and coding parameter MCS or the first a rank indicating RI;
  • the first modulation coding indication information, the acknowledgement information of the physical layer data information transmission, or the non-confirmation information is used to determine the number of transmission layers of the physical layer data information.
  • the multi-antenna transmission mode adopted for data transmission is based on beam pairing outputted by the beam management process, the antenna array gain is improved, and the paired beam transmission determined by the beam management process is improved, and the data transmission is improved. reliability.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission.
  • the delay and the reliability of the physical layer control information transmission are greater than the reliability of the physical layer data information transmission.
  • FIG. 7 is a schematic structural diagram of still another terminal provided by an embodiment of the present application, where the terminal includes a processor 701, a memory 702, and a communication module 703.
  • the memory 702 includes, but is not limited to, a random access memory (English: random access memory, abbreviated as: RAM), a read-only memory (English: read-only memory, abbreviated as: ROM) or an erasable programmable read-only memory (English: Erasable programmable read-only memory (abbreviation: EPROM), the memory 702 is used to store related program codes and related data.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • the processor 701 may be one or more central processing units (English: central processing unit, CPU for short). In the case that the processor 701 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 701 in the terminal reads the program code stored in the memory 702 to perform the following operations:
  • the first multi-antenna transmission mode and the second multi-antenna transmission mode are output based on the same beam management process.
  • the same beam pairing set, the beam pairing set includes the paired terminal side beams.
  • the processor 701 in the terminal reads the program code stored in the memory 702, and can also perform the following operations:
  • the communication module 703 Transmitting, by the communication module 703, each of the orthogonal frequency division multiplexing modulated OFDM symbols in the first region, cyclically using the paired terminal side beams in the beam pairing set to transmit physical layer control information; the first region is a network device scheduling to the terminal The area of the uplink transmission time-frequency resource block that transmits the physical layer control information.
  • the processor 701 in the terminal reads the program code stored in the memory 702, and can also perform the following operations:
  • the communication module 703 Transmitting, by the communication module 703, a beam on the terminal side of the pair of transmission layers based on the paired terminal side beams in the beam pairing set in the second region to transmit physical layer data information, where M is greater than zero and less than or equal to the paired terminal side
  • M is greater than zero and less than or equal to the paired terminal side
  • the positive number of the number of beams; the second area is an area of the uplink transmission time-frequency resource block that the network device schedules to transmit the physical layer data information to the terminal.
  • the processor 701 in the terminal reads the program code stored in the memory 702, and can also perform the following operations:
  • first modulation coding indication information includes a first modulation coding parameter MCS or a first rank indication RI;
  • the second RI is the number M of transmission layers.
  • the physical layer control information includes a second MCS of each of the transport layer number M and the transport layer number M.
  • the first area and the second area occupy the same uplink time-frequency resource block that is scheduled to be sent to the terminal, and the uplink transmission time-frequency resource block is continuous in the time domain and the frequency domain.
  • the waveform of the physical layer control information and the physical layer data information sent by the terminal is a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform
  • the first region and the second region have the same time domain, different frequency domains, and the first region and the second region are adjacent in the frequency domain.
  • the waveform of the physical layer control information and the physical layer data information sent by the terminal is a discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM waveform
  • the first region and the second region have the same frequency domain, different time domains, and the first region and the second region are adjacent in the time domain.
  • the multi-antenna transmission mode adopted for data transmission is based on beam pairing outputted by the beam management process, the antenna array gain is improved, and the paired beam transmission determined by the beam management process is improved, and the data transmission is improved. reliability.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission.
  • the delay and the reliability of the physical layer control information transmission are greater than the reliability of the physical layer data information transmission.
  • FIG. 8 is a schematic structural diagram of still another network device according to an embodiment of the present application.
  • the network device includes a processor 801, a memory 802, and a communication module 803.
  • Memory 802 includes, but is not limited to, a RAM, ROM or EPROM for storing associated program code and associated data.
  • the processor 801 may be one or more CPUs.
  • the CPU may be a single core CPU or a multi-core CPU.
  • the processor 801 in the network device reads the program code stored in the memory 802 to perform the following operations:
  • the communication module 803 Transmitting, by the communication module 803, beam indication information to the terminal, where the beam indication information includes a beam pairing set output by the beam management process, and the beam pairing set includes a paired terminal side beam;
  • the beam management process is based on the first multi-antenna transmission mode and the second multi-antenna transmission mode;
  • the first multi-antenna transmission mode is a multi-antenna transmission mode used by the terminal to transmit physical layer control information
  • the second multi-antenna transmission mode is a multi-antenna transmission mode used by the terminal to transmit physical layer data information.
  • the processor 801 in the network device reads the program code stored in the memory 802, and can also perform the following operations:
  • the configuration information is sent to the terminal by the communication module 803, where the configuration information includes the sub-band width of the uplink transmission time-frequency resource block that the first area occupies to the terminal, or the first area occupies the positive transmission time-frequency resource block that is scheduled to the terminal.
  • the frequency division multiplexing modulates the number of symbols of OFDM.
  • the processor 801 in the network device reads the program code stored in the memory 802, and can also perform the following operations:
  • the communication module 803 Transmitting, by the communication module 803, the first modulation and coding indication information, and the acknowledgment information or the non-confirmation information of the physical layer data information transmission, where the first modulation coding indication information includes the first modulation coding parameter MCS or the first rank indication RI;
  • the first modulation coding indication information, the acknowledgement information of the physical layer data information transmission, or the non-confirmation information is used to determine the number of transmission layers of the physical layer data information.
  • the multi-antenna transmission mode adopted for data transmission is based on beam pairing outputted by the beam management process, the antenna array gain is improved, and the paired beam transmission determined by the beam management process is improved, and the data transmission is improved. reliability.
  • the transmission of the physical layer control information and the physical layer data information share the beam pairing output by the same beam management process, thereby avoiding beam pairing of the physical layer control information and the physical layer data information by using one beam management process, thereby reducing data transmission.
  • the delay and the reliability of the physical layer control information transmission are greater than the reliability of the physical layer data information transmission.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above software function parts can be stored in the storage unit.
  • the storage unit includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform some of the steps of the methods described in various embodiments of the present application.
  • the storage unit includes: one or more memories, such as a read-only memory (ROM), a random access memory (RAM), and an electrically erasable programmable read only memory (EEPROM). and many more.
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read only memory
  • the storage unit can exist independently or in combination
  • the controller is integrated.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State DisB (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium eg, a Solid State DisB (SSD)

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Abstract

本申请涉及通信技术领域,尤其涉及一种数据传输方法及相关设备,该方法包括:终端采用第一多天线传输模式发送物理层控制信息,采用第二多天线传输模式发送物理层控制信息和物理层数据信息;其中,所述第一多天线传输模式和所述第二多天线传输模式是基于同一个波束管理流程输出的相同的波束配对集合,所述波束配对集合包括配对的终端侧的波束。通过实施本申请实施例,可见,实施本申请实施例,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。

Description

数据传输方法及相关设备 技术领域
本申请涉及通信技术领域,尤其涉及一种数据传输方法及相关设备。
背景技术
标准化组织3GPP在2016年上半年启动了New RAT(NR)的SI项目,面向第五代移动通信技术(5th-Generation,5G),展开了包括物理层信号设计,高层网络切分,信令流程设计等等一系列研究。新空口技术(New RAT,NR)研究可以不用再考虑对长期演进(Long Term Evolution,LTE)***已经定版的特性进行后向兼容,相反,可以基于对未来技术发展趋势的预测,在技术方案的设计中,加入一些前向兼容的考虑。另外,NR研究的频段覆盖范围更广,目前希望在sub-6GHz(0-6GHz)和above-6GHz(6-100GHz)建立一套统一的空口技术框架。作为这一技术框架的一部分,在当前NR的第一阶段标准化中,已经在30GHz左右的频段,开展了针对密集场景的高频波束赋型技术研究和讨论。
波束赋型技术,在LTE中已经有所讨论。如果天线阵列是线阵或者平面阵,那么基于离散傅里叶变换(discreteFourier transform,DFT)码本,发射端能够生成具有良好的主瓣方向性的波束。在NR中的讨论,普遍认为应该在基站侧和终端侧都进行波束赋型,以获得阵列增益。基于此,在NR的讨论中,建立了波束配对链路(Beam pair link,BPL)的概念,一个BPL表示一个基站侧波束和一个终端侧波束的配对。BPL的建立基于波束管理流程,波束管理流程就是一系列基于参考信号的发送与测量以获得上下行波束配对信息的流程。一般在基站侧进行BPL信息的管理,并通过信令通知终端。
但是,传统的LTE上行定义,在设计了控制信道和数据信道同时传输的流程中,针对低频段设计,并不涉及波束管理流程,天线阵列增益较低。
发明内容
本申请提出一种数据传输方法及相关设备,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。
第一方面,提供了一种数据传输方法,包括:
终端采用第一多天线传输模式发送物理层控制信息,采用第二多天线传输模式发送物理层控制信息和物理层数据信息;
其中,第一多天线传输模式和第二多天线传输模式是基于同一个波束管理流程输出的相同的波束配对集合,波束配对集合包括配对的终端侧的波束。
本申请实施例使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信 息传输的可靠性。
在一种可能的设计中,终端在第一区域中每个正交频分复用调制OFDM符号上,循环采用波束配对集合中配对的终端侧的波束来发送物理层控制信息;第一区域为网络设备调度给终端传输物理层控制信息的上行传输时频资源块的区域。
可见,本申请实施例的第一区域采用的是分集技术,分集技术提高了物理层数据信息传输的质量。
在又一种可能的设计中,终端在第二区域内基于波束配对集合中配对的终端侧的波束,生成传输层数为M的终端侧的波束来发送物理层数据信息,M为大于零且小于等于配对的终端侧的波束的个数的正整数;第二区域为网络设备调度给终端传输物理层数据信息的上行传输时频资源块的区域。
可见,本申请实施例的第二区域采用的是空间复用技术,空间复用技术提高了物理层控制数据信息传输的数量。
在又一种可能的设计中,终端接收第一调制编码指示信息,以及物理层数据信息传输的确认信息或非确认信息,第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
终端根据确认信息或非确认信息,调整第一调制编码指示信息,获得第二调制编码指示信息,第二调制编码指示信息包括第二MCS或第二RI;
其中,第二RI为传输层数M。
物理层控制信息包括传输层数M和传输层数M中每一层的第二MCS。
进一步的,第一区域和第二区域占据同一个调度给终端的上行传输时频资源块,且上行传输时频资源块在时域、频域上均连续。
在又一种可能的设计中,终端发送物理层控制信息和物理层数据信息的波形为循环前缀正交频分复用CP-OFDM波形;
第一区域和第二区域的时域相同、频域不同、且第一区域和第二区域在频域上相邻。
在又一种可能的设计中,终端发送物理层控制信息和物理层数据信息的波形为离散傅立叶变换扩频正交频分复用DFT-s-OFDM波形;
第一区域和第二区域的频域相同、时域不同、且第一区域和第二区域在时域上相邻。
在又一种可能的设计中,基于上述占据调度给终端的、同一个、且在时域和频域上均连续的上行传输时频资源块的第一区域和第二区域,该第一区域和该第二区域上的传输过程具有较高的相似性,可以克服功控路径损耗的需求考虑,该第一区域和该第二区域上可以共用一个功率控制流程,避免为第一区域和该第二区域单独设计功率控制流程,降低了信令的开销。
第二方面,提供了又一种数据传输方法,包括:
网络设备向终端发送波束指示信息,波束指示信息包括波束管理流程输出的波束配对集合,波束配对集合包括配对的终端侧的波束;
其中,波束管理流程是第一多天线传输模式和第二多天线传输模式共同基于的;
第一多天线传输模式为终端发送物理层控制信息采用的多天线传输模式;
第二多天线传输模式为终端发送物理层数据信息采用的多天线传输模式。
在一种可能的设计中,网络设备向终端发送配置信息,配置信息包括第一区域占据调度给终端的上行传输时频资源块的子带宽度,或者,第一区域占据调度给终端的上行传输时频资源块的正交频分复用调制OFDM的符号个数。
在又一种可能的设计中,网络设备向终端发送第一调制编码指示信息,以及物理层数据信息传输的确认信息或非确认信息,第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
其中,第一调制编码指示信息、物理层数据信息传输的确认信息或非确认信息用于确定物理层数据信息的传输层数。
第三方面,提供了一种终端,终端包括用于执行上述第一方面的数据传输方法的模块或单元。
第四方面,提供了一种网络设备,网络设备包括用于执行上述第二方面的数据传输方法的模块或单元。
第五方面,提供了又一种终端,终端包括处理器、通信模块和存储器,存储器用于存储指令。处理器用于读取存储器的指令执行上述第一方面的数据传输方法。
第六方面,提供了又一种网络设备,网络设备包括处理器、通信模块和存储器,存储器用于存储指令。处理器用于读取存储器的指令执行上述第二方面的数据传输方法。
第七方面,提供一种计算机存储介质,用于储存为上述终端所用的计算机软件指令,其包含用于执行上述第一方面所设计的程序。
第八方面,提供又一种计算机存储介质,用于储存为上述网络设备所用的计算机软件指令,其包含用于执行上述第二方面所设计的程序。
可见,实施本申请实施例具有以下有益效果:
本申请实施例使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信息传输的可靠性。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍。
图1是本申请实施例提供的一种通信***的架构示意图;
图2是本申请实施例提供的一种数据传输方法的流程示意图;
图3A是本申请实施例提供的一种第一区域和第二区域的示意图;
图3B是本申请实施例提供的又一种第一区域和第二区域的示意图;
图3C是本申请实施例提供的又一种第一区域和第二区域的示意图;
图4A是本申请实施例提供的又一种第一区域和第二区域的示意图;
图4B是本申请实施例提供的又一种第一区域和第二区域的示意图;
图4C是本申请实施例提供的又一种第一区域和第二区域的示意图;
图4D是本申请实施例提供的又一种第一区域和第二区域的示意图;
图5是本申请实施例提供的一种终端的结构示意图;
图6是本申请实施例提供的一种网络设备的结构示意图;
图7是本申请实施例提供的又一种终端的结构示意图;
图8是本申请实施例提供的又一种网络设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。
参见图1,是本申请实施例涉及的一种通信***的架构示意图,该通信***100包括终端101和网络设备102,终端101和网络设备102通过空口进行通信。其中:
终端101是一种指向用户提供语音和/或数据连通性的设备,具有有线/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。终端101可以经过无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信。终端101可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,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装置,它们与RAN交换语言和/或数据,例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。终端101也可以称为用户代理(User Agent)、用户设备(User Device)。
网络设备102是一种部署在无线接入网中用以为终端101提供无线通信功能的装置。网络设备可以包括各种形式的宏基站、微基站、中继站、接入点等等。在采用不同的无线接入技术的***中,具备网络设备102功能的设备的名称可能会有所不同,例如,网络设备102在新的无线技术(New Radio,NR)中可以称为网络设备,在3G(如通用移动通信***(Universal Mobile Telecommunications System,UMTS)、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)、时分同步码分多址(Time Division-Synchronous Code Division Multiple Access,TD-SCDMA))***中可以称为基站(NodeB,NB),或者,在LTE***中还可以称为演进型基站(evolved Node B,eNB)等等。
实施例一:
参见图2,本申请实施例提供一种数据传输方法的流程示意图,该方法包括但不限于以下步骤:
S201、终端采用第一多天线传输模式发送物理层控制信息。
S202、终端采用第二多天线传输模式发送物理层数据信息。
本申请实施例用“第一”和“第二”区分终端发送物理层控制信息和物理层数据信息所采用的多天线传输模式,该多天线传输模式可以为通过多个天线传输数据的模式,可以理解的是,第一多天线传输模式和第二多天线传输模式可以是相同的多天线传输模式,也可以是不同的多天线传输模式,在此不作限定。另外,本申请实施例中,第一多天线传输模式和第二多天线传输模式可以共同基于同一个波束管理流程输出的相同的波束配对集合,该波束配对集合可以包括配对的终端侧的波束,或者,配对的终端侧的波束和配对的网络设备侧的波束。
示例性的,该波束管理流程可以包括以下步骤:
步骤11)、终端向网络设备发送上行波束测量参考信号。
步骤12)、网络设备基于该上行波束测量参考信号和与之相匹配的下行接收波束,进行相应的接收强度计算,以及波束的选择(即确定出配对的终端侧的波束)。
步骤13)、网络设备向终端发送波束指示信息,该波束指示信息包括确定出的配对的终端侧的波束。
步骤14)、终端接收网络设备发送的波束指示信息。
例如,终端向网络设备发送4个上行波束测量参考信号(上行波束测量参考信号1、3、4和8),网络设备基于该4个上行波束测量参考信号和与之相匹配的下行接收波束进行相应的接收强度计算,从该4个上行波束测量参考信号中确定接收强度大于预设的强度阈值的上行波束1、3和8,即确定出配对的终端侧的波束1、3和8。
第一多天线传输模式和第二多天线传输模式可以共同基于上述步骤11)至步骤14)的波束管理流程输出的配对的终端侧的波束1、3和8分别来发送物理层控制信息和物理层数据信息。
示例性的,该波束管理流程可以包括上述步骤11)至步骤14)和以下步骤:
步骤21)、网络设备向终端发送下行波束测量参考信号。
步骤22)、终端基于该下行波束测量参考信号和与之相匹配的上行接收波束,进行相应的接收强度计算,以及波束的选择(即确定出配对的网络设备侧的波束)。
例如,网络设备向终端发送4个下行波束测量参考信号(下行波束测量参考信号1、2、3和4),终端基于该4个下行波束测量参考信号和与之相匹配的上行接收波束进行相应的接收强度计算,从该4个下行波束测量参考信号中确定接收强度大于预设的强度阈值的下行波束1和2,即确定出配对的网络设备侧的波束1、2和3。由此可见,所述波束的序号1、2、3、4,事实上是所述下行测量参考信号的序号。
第一多天线传输模式和第二多天线传输模式可以共同基于上述步骤11)至步骤14)和步骤21)、步骤22)的波束管理流程输出的配对的终端侧的波束1、3和8和配对的网络设备侧的波束1、2和3来分别发送物理层控制信息和物理层数据信息。
进一步的,上述步骤中网络设备可以通过高层信令,比如无线资源控制消息向终端发送波束指示信息。为了降低信令的开销,该配对的终端侧的波束可以是半静态配置。
可见,实施本申请实施例,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输, 提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信息传输的可靠性。
实施例二:
基于实施例一所述的同一个波束管理流程输出的相同的波束配对集合,步骤S201可以为:终端在第一区域中每个正交频分复用调制(Orthogonal Frequency Division Multiplexing,OFDM)符号上,循环采用波束配对集合中配对的终端侧的波束来发送物理层控制信息。步骤S202可以为:终端在第二区域内基于波束配对集合中的终端侧的波束,生成传输层数为M的终端侧的波束来发送物理层数据信息,M为大于零且小于等于配对的终端侧的波束的个数的正整数。
其中,该第一区域可以为占据调度给终端的上行传输时频资源块发送物理层控制信息的区域,该第二区域可以占据调度给终端的上行传输时频资源块发送物理层数据信息的区域。可选的,该第一区域和该第二区域占据的调度给终端的上行传输时频资源块可以为同一个、且在时域和频域上均连续的时频资源块,该第一区域和该第二区域在该上行传输时频资源块上,时域相同、频域不同,且在该第一区域和该第二区域在频域上相邻。
具体的,当终端处于连接态时,网络设备可以通过高层信令,比如无线资源控制消息通知该终端波形的配置,或者,当终端处于空闲态时,网络设备可以通过随机接入过程中的message2通知该终端波形的配置。如果网络设备通知终端的波形为循环前缀正交频分复用(cyclic prefixed orthogonal frequency divided multiplexing,CP-OFDM)波形,网络设备可以向终端发送第一配置信息,该第一配置信息可以指示第一区域占据调度给终端的上行传输时频资源块的子带宽度,终端接收该第一配置信息。第一区域可以为该上行传输时频资源块边缘处,子带宽度为该第一配置信息指示的子带宽度的区域,该第二区域可以为该上行传输时频资源块中,除所述第一区域外的区域;或者,第一区域可以为该上行传输时频资源块中心位置处,子带宽度为该第一配置信息指示的子带宽度的区域,第二区域可以为该上行传输时频资源块中,除该第一区域外的区域等。此时,该第一区域和该第二区域在该上行传输时频资源块上,时域相同、频域不同,且在该第一区域和该第二区域在频域上相邻。
例如,图3A所示的一种第一区域和第二区域的示意图,图3A所示的整个区域为网络设备为终端调度的一个上行传输时频资源块,如果终端接收到的该第一配置信息指示第一区域占据该时频资源块的子带宽度为delta_1,delta_1的单位为物理资源块(physical resource block,PRB),如图3A左侧图所示,该第一区域可以为该上行传输时频资源块边缘处子带宽度为delta_1的区域,第二区域为该上行传输时频资源块的除第一区域外的区域;或者,如图3A右侧图所示,第一区域可以为该上行传输时频资源块的中心位置处子带宽度为delta_1的区域,第二区域为该上行传输时频资源块的除该第一区域外的区域。
进一步的,网络设备可以通过高层信令,比如无线资源控制消息向终端发送第一该配置信息,该第一区域和第二区域可以通过高层信令半静态配置,降低了物理层控制信息和 物理层数据信息的传输时延。
在该第一区域中的每个OFDM符号上,可以按照依次顺序或者其他顺序,比如随机等,循环配置有上述波束配对集合中的一个配对的终端侧的波束,终端可以采用配置在第一区域中每个OFDM符号上的波束发送物理层控制信息。
进一步的,物理层控制信息可以以固定速率发送。
例如,图3B所示的又一种第一区域和第二区域的示意图,该第一区域从左到右的OFDM符号:符号1至符号14,可以依次循环配置有上述波束配对集合中配对的终端侧的波束:波束1、波束3和波束8,即符号1配置有波束1、符号2配置波束3、符号3配置有波束8、符号4配置有波束1、符号5配置有波束3、符号6配置有波束8、符号7配置有波束1、符号8配置波束3、符号9配置有波束8、符号10配置有波束1、符号11配置波束3、符号12配置有波束8、符号13配置有波束1、符号14配置波束3。
或者,在该第一区域中的每个OFDM符号上,可以按照循环模式循环配置有上述波束配对集合中配对的终端侧的波束,终端可以采用配置在第一区域中每个OFDM符号上的波束发送物理层控制信息,其中,该循环模式可以如下式,x为无线帧号,y为终端的身份识别号ID,z为符号序号,k为波束的个数,BeamID为波束的序号。基于实施例一的分析可知,所述波束的序号事实上是下行测量参考信号的序号。
f(x,y,z)∈{BeamID}
上述f(x,y,z)的一个具体实施方式是:
f(x,y,z)=mod(Ax+By+Cz+D,k)+1
其中{A,B,C,D}为与x,y,z均无关的整数。例如,假设A=3,B=2,C=1,D=0,则在图3B所示的第一区域上,如果终端的身份识别号份识别号y=1,该第一区域上的无线帧号x=3,则该第一区域中OFDM符号1(z=1)上,按照上述循环模式公式,还可以配置有的波束为波束2,即:
f(x,y,z)=mod(3x+2y+z,k)+1=1
在该第一区域中的OFDM符号2(z=2)上,配置的波束为波束2,即:
f(x,y,z)=mod(3x+2y+z,k)+1=2
在该第一区域中的OFDM符号3(z=3)上,配置的波束为波束2,即:
f(x,y,z)=mod(3x+2y+z,k)+1=3
等等。
可见,第一区域采用传输分集技术,提高了物理层控制信息传输的质量。
在第二区域中,该传输层数M可以基于网络设备给出的第一调制与编码参数(Modulation and Coding Scheme,MCS)、第一秩指示(Rank Indication,RI)、以及一个或多个确认(Acknowledgement,ACK)或非确定(Non-Acknowledgement,NACK)信息确定的。
其中,该传输层数M确定的过程可以为:网络设备向终端发送第一调制编码指示信息,终端接收该第一调制编码指示信息,第一调制编码指示信息中包含第一MCS或第一RI,终端接收第一MCS及第一RI。第一RI为第二RI的取值范围,而第一MCS为第一RI限定的取值范围内,针对每一个可选的RI下的每个传输层的第二MCS的初始值。终端将第一 RI中取值范围的下限确定为第二RI的初始值,将第一MCS中第二RI下的每个传输层的MCS确定为第二MCS的初始值。当终端接收到的ACK信息的个数大于第一预设的阈值时,终端可以升高第二MCS,第二RI不变;或者,当终端接收到的ACK信息的个数大于第一预设的阈值时,终端可以升高第二RI,并确定第一MCS中对应于新的第二RI下的每个传输层的MCS为第二MCS,该第二RI为传输层数M。
终端可以基于上述波束配对集合中配对的终端侧的波束,生成传输层数为第二RI的终端侧的波束、或者传输速率为第二MCS对应的速率来发送物理层数据信息。另外,终端将第二RI和第二MCS通过上行物理控制信道发送给网络设备。这样,网络设备就可以接收上行物理控制信道,确定上行数据传输所使用的RI和MCS,进而实现对上行数据包的解码。
例如,第一MCS为5,第一RI为1至2,第二RI的初始值可以为第一RI中取值范围的下限1,第二MCS的初始值可以为第一MCS,当终端接收到的ACK信息的个数大于第一预设的阈值时,终端可以升高第二MCS,比如升高第二MCS为6,第二RI可以仍为初始值不变,如果上述波束配对集合中配对的终端侧的波束为波束1、3和8,则终端可以通过波束1、3和8中的其中一个波束、以第二MCS=6对应的速率来发送物理层数据信息;或者,当终端接收到的ACK信息的个数大于第一预设的阈值时,终端也可以升高第二RI,比如升高至2,第二RI下的每个传输层的MCS可以为第二MCS的初始值5不变,也可以降低。例如,如果上述波束配对集合中配对的终端侧的波束为波束1、3和8,则终端可以通过波束1、3和8中任两个波束、该任两个波束可以都以第二MCS初始值5对应的速率发送物理层数据信息,或者该任两个波束其中一个波束以第二MCS为4对应的速率发送物理层数据信息,另一个波束以第二MCS为3对应的速率发送物理层数据信息。
可以理解的是,第二RI,即终端侧发送物理层数据信息的传输层数M,可以大于零且小于等于实施例一所述的波束配对集合中配对的终端侧的波束。
可选的,为了满足第二区域中不同子带对服务质量(Quality of Service,QoS)的要求,第二区域还可以划分为多个子带。该第二区域划分的多个子带中,每个子带可以具有不同的传输层数和每个传输层数对应的MCS,终端可以基于波束配对集合中配对的终端侧的波束,生成每个子带的传输层数的终端侧的波束、以及以每个传输层数对应的MCS来发送物理层数据信息;或者,该第二区域划分的多个子带中,一部分子带中的每个子带可以具有不同的传输层数和每个传输层数对应的MCS,终端可以基于波束配对集合中配对的终端侧的波束,生成每个子带的传输层数的终端侧的波束、以及以每个传输层数对应的MCS来发送物理层数据信息,另一部分子带中的每个OFDM符号配置有上述波束配对集合中的一个终端侧的波,终端可以采用配置在第一区域中每个OFDM符号上的波束发送物理层数据信息;或者,该第二区域划分的多个子带中,每个子带中的每个OFDM符号配置有上述波束配对集合中的一个终端侧的波,终端可以采用配置在第一区域中每个OFDM符号上的波束发送物理层数据信息等。需要说明的是,每个子带上的第二MCS和第二RI,以及每个子带的配置,通过物理上行控制信道发送给网络设备。这样,网络设备就可以接收上行物理控制信道,确定上行数据传输所使用的RI和MCS,以及上行传输所划分的子带,进而实现对上行数据包的解码。
其中,网络设备可以通过高层信令,比如无线资源控制消息传输第二区域的区域划分 信息,为了降低信令的开销,该第二区域中子带的划分可以是半静态配置。
例如,在图3B基础上,图3C示出的第二区域划分了两个子带,子带1和子带2,子带1和子带2时域相同、频域不同。
可见,本申请实施例的第一区域采用的是分集技术,分集技术提高了物理层控制信息传输的质量,第二区域采用的是空间复用技术,提高了物理层数据信息传输的数量。
实施例三:
基于实施例一所述的同一个波束管理流程输出的相同的波束配对集合,步骤S201可以为:终端在第一区域中每个OFDM符号上,循环采用波束配对集合中配对的终端侧的波束来发送物理层控制信息。步骤S202可以为:终端在第二区域内基于波束配对集合中配对的终端侧的波束,生成传输层数为M的终端侧的波束来发送物理层数据信息,M为大于零且小于等于配对的终端侧的波束的个数。
其中,该第一区域可以为占据调度给终端的上行传输时频资源块发送物理层控制信息的区域,该第二区域可以占据调度给终端的上行传输时频资源块发送物理层数据信息的区域。可选的,该第一区域和该第二区域在该上行传输时频资源块上,频域相同、时域不同,且在该第一区域和该第二区域在时域上相邻。
具体的,当终端处于连接态时,网络设备可以通过高层信令,比如无线资源控制消息通知该终端波形的配置,或者,当终端处于空闲态时,网络设备可以通过随机接入过程中的message2通知该终端波形的配置。如果网络设备通知终端的波形为离散傅立叶变换扩频正交频分复用(Discrete Fourier Transform spread orthogonal frequency divided multiplexing,DFT-s-OFDM)波形,网络设备可以向终端发送第二配置信息,该第二配置信息可以指示第一区域占据调度给终端的上行传输时频资源块的OFDM符号的个数,终端接收该第二配置信息。第一区域可以为该上行传输时频资源块左侧边缘处,OFDM符号个数为该第二配置信息指示的OFDM符号个数的区域,第二区域可以为该上行传输时频资源块中,除该第一区域外的区域等。此时,该第一区域和该第二区域在该上行传输时频资源块上,频域相同、时域不同,且在该第一区域和该第二区域在时域上相邻。
例如,图4A所示的又一种第一区域和第二区域的示意图,图4A所示的整个区域为网络设备为终端调度的一个上行传输时频资源块,如果终端接收到的该第二配置信息指示第一区域占据该时频资源块的OFDM符号个数为symbol_1,如图4A所示,第一区域可以为该上行传输时频资源块左侧边缘处,OFDM符号个数为symbol_1的区域,第二区域可以为该上行传输时频资源块中,除该第一区域外的区域。
进一步的,网络设备可以通过高层信令,比如无线资源控制消息向终端发送第一该配置信息,该第一区域和第二区域可以通过高层信息半静态配置。可见,实施本申请实施例,第一区域和第二区域的调度可以共用一组上行资源调度信令,降低了物理层控制信息和物理层数据信息的传输时延。
同上述实施例一,在该第一区域中的每个OFDM符号上,可以按照依次顺序或者其他顺序,比如随机等,循环配置有上述波束配对集合中的一个配对的终端侧的波束;或者,按照循环模式循环配置有上述波束配对集合中配对的终端侧的波束。终端可以采用配置在 第一区域中每个OFDM符号上的波束发送物理层控制信息。在此不再赘述。
例如,图4B所示的又一种第一区域和第二区域的示意图,该第一区域从左到右的OFDM符号:符号1至符号4,可以依次配置有上述波束配对集合中配对的终端侧的波束:波束1、波束3和波束8,即符号1配置有波束1、符号2配置波束3、符号3配置有波束8、符号4配置有波束1。
可选的,第一区域还可以划分为多个子带,同一个子带的不同OFDM符号上分别配置有一个上述波束配对集合中配对的终端侧的波束。
例如,在图4B的基础上,图4C所示的第一区域又被划分了4个子带:子带1、子带2、子带3和子带4,如图4C所示,子带1中的OFDM符号1上可以配置有上述波束配对集合中配对的终端侧的波束1、子带1中的OFDM符号2上可以配置有上述波束配对集合中配对的终端侧的波束3、子带1中的OFDM符号3上可以配置有上述波束配对集合中配对的终端侧的波束8、子带1中的OFDM符号4上可以配置有上述波束配对集合中配对的终端侧的波束1、子带2中的OFDM符号1上可以配置有上述波束配对集合中配对的终端侧的波束3等。
在第二区域中,该传输层数M可以基于网络设备给出的第一调制与编码参数MCS、第一秩指示RI、以及一个或多个确认ACK或非确定NACK信息确定的。其中,传输层数M的确定方法可以参考实施例一的相关描述,在此不再赘述。
可选的,为了满足第二区域中不同子带对服务质量QoS的要求,第二区域还可以划分为多个子带。该第二区域划分的多个子带中,每个子带可以具有不同的传输层数和每个传输层数对应的MCS,终端可以基于波束配对集合中配对的终端侧的波束,生成每个子带的传输层数的终端侧的波束、以及以每个传输层数对应的MCS来发送物理层数据信息;或者,该第二区域划分的多个子带中,一部分子带中的每个子带可以具有不同的传输层数和每个传输层数对应的MCS,终端可以基于波束配对集合中配对的终端侧的波束,生成每个子带的传输层数的终端侧的波束、以及以每个传输层数对应的MCS来发送物理层数据信息,另一部分子带中的每个OFDM符号配置有上述波束配对集合中的一个终端侧的波,终端可以采用配置在第一区域中每个OFDM符号上的波束发送物理层数据信息;或者,该第二区域划分的多个子带中,每个子带中的每个OFDM符号配置有上述波束配对集合中的一个终端侧的波,终端可以采用配置在第一区域中每个OFDM符号上的波束发送物理层数据信息等。
例如,在图4C基础上,图4D示出的第二区域划分了两个子带,子带1和子带2,子带1和子带2时域相同、频域不同。
其中,网络设备可以通过高层信令,比如无线资源控制消息传输第二区域中区域的划分信息,为了降低信令的开销,该第二区域中子带的划分可以是半静态配置。
可见,本申请实施例的第一区域采用的是分集技术,分集技术提高了物理层控制信息传输的质量,第二区域采用的是空间复用技术,提高了物理层数据信息传输的数量。
需要说明的是,基于上述占据调度给终端的、同一个、且在时域和频域上均连续的上行传输时频资源块的第一区域和第二区域,该第一区域和该第二区域上的传输过程具有较高的相似性,可以克服功控路径损耗的需求考虑,该第一区域和该第二区域上可以共用一个功率控制流程,避免为第一区域和该第二区域单独设计功率控制流程,降低了信令的开 销。
基于上述方法实施例相同的技术构思,本申请实施例还提供了一种终端,可以应用于上述方法实施例中。
如图5所示,为本申请实施例提供的一种终端的结构示意图,可以包括:
发送单元501,用于采用第一多天线传输模式发送物理层控制信息,采用第二多天线传输模式发送物理层控制信息和物理层数据信息;
其中,第一多天线传输模式和第二多天线传输模式是基于同一个波束管理流程输出的相同的波束配对集合,波束配对集合包括配对的终端侧的波束。
可选的,发送单元501,具体用于在第一区域中每个正交频分复用调制OFDM符号上,循环采用波束配对集合中配对的终端侧的波束来发送物理层控制信息;第一区域为网络设备调度给终端传输物理层控制信息的上行传输时频资源块的区域。
可选的,发送单元501,具体用于在第二区域内基于波束配对集合中配对的终端侧的波束,生成传输层数为M的终端侧的波束来发送物理层数据信息,M为大于零且小于等于配对的终端侧的波束的个数的正整数;第二区域为网络设备调度给终端传输物理层数据信息的上行传输时频资源块的区域。
可选的,该终端还包括:
接收单元502,用于接收第一调制编码指示信息,以及物理层数据信息传输的确认信息或非确认信息,第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
处理单元503,用于根据确认信息或非确认信息,调整第一调制编码指示信息,获得第二调制编码指示信息,第二调制编码指示信息包括第二MCS或第二RI;
其中,第二RI为传输层数M。
物理层控制信息包括传输层数M和传输层数M中每一层的第二MCS。
可选的,第一区域和第二区域占据同一个调度给终端的上行传输时频资源块,且上行传输时频资源块在时域、频域上均连续。
可选的,终端发送物理层控制信息和物理层数据信息的波形为循环前缀正交频分复用CP-OFDM波形;
第一区域和第二区域的时域相同、频域不同、且第一区域和第二区域在频域上相邻。
可选的,终端发送物理层控制信息和物理层数据信息的波形为离散傅立叶变换扩频正交频分复用DFT-s-OFDM波形;
第一区域和第二区域的频域相同、时域不同、且第一区域和第二区域在时域上相邻。
其中,本申请实施例可以参考实施例一至实施例三的相关描述,在此不再赘述。
可见,实施本申请实施例,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信息传输的可靠性。
基于上述方法实施例相同的技术构思,本申请实施例还提供了一种网络设备,可以应用于上述方法实施例中。
如图6所示,为本申请实施例提供的一种网络设备的结构示意图,可以包括:
发送单元601,用于向终端发送波束指示信息,波束指示信息包括波束管理流程输出的波束配对集合,波束配对集合包括配对的终端侧的波束;
其中,波束管理流程是第一多天线传输模式和第二多天线传输模式共同基于的;
第一多天线传输模式为终端发送物理层控制信息采用的多天线传输模式;
第二多天线传输模式为终端发送物理层数据信息采用的多天线传输模式。
可选的,发送单元601,还用于向终端发送配置信息,配置信息包括第一区域占据调度给终端的上行传输时频资源块的子带宽度,或者,第一区域占据调度给终端的上行传输时频资源块的正交频分复用调制OFDM的符号个数。
可选的,发送单元601,还用于向终端发送第一调制编码指示信息,以及物理层数据信息传输的确认信息或非确认信息,第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
其中,第一调制编码指示信息、物理层数据信息传输的确认信息或非确认信息用于确定物理层数据信息的传输层数。
其中,本申请实施例可以参考实施例一至实施例三的相关描述,在此不再赘述。
可见,实施本申请实施例,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信息传输的可靠性。
图7是本申请实施例提供的又一终端的结构示意图,该终端包括处理器701、存储器702和通信模块703。
存储器702包括但不限于是随机存取存储器(英文:random access memory,简称:RAM)、只读存储器(英文:read-only memory,简称:ROM)或可擦除可编程只读存储器(英文:erasable programmable read-only memory,简称:EPROM),该存储器702用于存储相关程序代码及相关数据。
处理器701可以是一个或多个中央处理器(英文:central processing unit,简称:CPU),在处理器701是一个CPU的情况下,该CPU可以是单核CPU,也可以是多核CPU。
在一种可能的实现方式中,该终端中的处理器701读取存储器702中存储的程序代码,以执行以下操作:
通过通信模块703采用第一多天线传输模式发送物理层控制信息,以及采用第二多天线传输模式发送物理层控制信息和物理层数据信息;
其中,第一多天线传输模式和第二多天线传输模式是基于同一个波束管理流程输出的 相同的波束配对集合,波束配对集合包括配对的终端侧的波束。
在又一种可能的实现方式中,该终端中的处理器701读取存储器702中存储的程序代码,还可以执行以下操作:
通过通信模块703在第一区域中每个正交频分复用调制OFDM符号上,循环采用波束配对集合中配对的终端侧的波束来发送物理层控制信息;第一区域为网络设备调度给终端传输物理层控制信息的上行传输时频资源块的区域。
在又一种可能的实现方式中,该终端中的处理器701读取存储器702中存储的程序代码,还可以执行以下操作:
通过通信模块703在第二区域内基于波束配对集合中配对的终端侧的波束,生成传输层数为M的终端侧的波束来发送物理层数据信息,M为大于零且小于等于配对的终端侧的波束的个数的正整数;第二区域为网络设备调度给终端传输物理层数据信息的上行传输时频资源块的区域。
在又一种可能的实现方式中,该终端中的处理器701读取存储器702中存储的程序代码,还可以执行以下操作:
通过通信模块703接收第一调制编码指示信息,以及物理层数据信息传输的确认信息或非确认信息,第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
根据确认信息或非确认信息,调整第一调制编码指示信息,获得第二调制编码指示信息,第二调制编码指示信息包括第二MCS或第二RI;
其中,第二RI为传输层数M。
物理层控制信息包括传输层数M和传输层数M中每一层的第二MCS。
第一区域和第二区域占据同一个调度给终端的上行传输时频资源块,且上行传输时频资源块在时域、频域上均连续。
在又一种可能的实现方式中,终端发送物理层控制信息和物理层数据信息的波形为循环前缀正交频分复用CP-OFDM波形;
第一区域和第二区域的时域相同、频域不同、且第一区域和第二区域在频域上相邻。
在又一种可能的实现方式中,终端发送物理层控制信息和物理层数据信息的波形为离散傅立叶变换扩频正交频分复用DFT-s-OFDM波形;
第一区域和第二区域的频域相同、时域不同、且第一区域和第二区域在时域上相邻。
其中,本申请实施例可以参考实施例一至实施例三的相关描述,在此不再赘述。
可见,实施本申请实施例,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信息传输的可靠性。
图8是本申请实施例提供的又一网络设备的结构示意图,该网络设备包括处理器801、存储器802和通信模块803。
存储器802包括但不限于是RAM、ROM或EPROM,该存储器802用于存储相关程序代码及相关数据。
处理器801可以是一个或多个CPU,在处理器801是一个CPU的情况下,该CPU可以是单核CPU,也可以是多核CPU。
在第一种可能的实现方式中,该网络设备中的处理器801读取存储器802中存储的程序代码,以执行以下操作:
通过通信模块803向终端发送波束指示信息,波束指示信息包括波束管理流程输出的波束配对集合,波束配对集合包括配对的终端侧的波束;
其中,波束管理流程是第一多天线传输模式和第二多天线传输模式共同基于的;
第一多天线传输模式为终端发送物理层控制信息采用的多天线传输模式;
第二多天线传输模式为终端发送物理层数据信息采用的多天线传输模式。
在第一种可能的实现方式中,该网络设备中的处理器801读取存储器802中存储的程序代码,还可以执行以下操作:
通过通信模块803向终端发送配置信息,配置信息包括第一区域占据调度给终端的上行传输时频资源块的子带宽度,或者,第一区域占据调度给终端的上行传输时频资源块的正交频分复用调制OFDM的符号个数。
在第一种可能的实现方式中,该网络设备中的处理器801读取存储器802中存储的程序代码,还可以执行以下操作:
通过通信模块803向终端发送第一调制编码指示信息,以及物理层数据信息传输的确认信息或非确认信息,第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
其中,第一调制编码指示信息、物理层数据信息传输的确认信息或非确认信息用于确定物理层数据信息的传输层数。
其中,本申请实施例可以参考实施例一至实施例三的相关描述,在此不再赘述。
可见,实施本申请实施例,使得数据传输采用的多天线传输模式基于波束管理流程输出的波束配对,提高了天线的阵列增益,以及数据通过波束管理流程确定的配对波束传输,提高了数据传输的可靠性。另外,物理层控制信息和物理层数据信息的传输共用同一个波束管理流程输出的波束配对,避免物理层控制信息和物理层数据信息各用一个波束管理流程输出的波束配对,降低了数据传输时延,以及保证了物理层控制信息传输的可靠性大于物理层数据信息传输的可靠性。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述软件功能部分可以存储在存储单元中。所述存储单元包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的部分步骤。所述存储单元包括:一个或多个存储器,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM),电可擦写可编程只读存储器(EEPROM),等等。所述存储单元可以独立存在,也可以和处 理器集成在一起。
本领域技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的装置的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
本领域普通技术人员可以理解:本文中涉及的第一、第二等各种数字编号仅为描述方便进行的区分,并不用来限制本申请实施例的范围。
本领域普通技术人员可以理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘Solid State DisB(SSD))等。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (22)

  1. 一种数据传输方法,其特征在于,包括:
    终端采用第一多天线传输模式发送物理层控制信息,采用第二多天线传输模式发送物理层控制信息和物理层数据信息;
    其中,所述第一多天线传输模式和所述第二多天线传输模式是基于同一个波束管理流程输出的相同的波束配对集合,所述波束配对集合包括配对的终端侧的波束。
  2. 根据权利要求1所述的方法,其特征在于,所述终端采用第一多天线传输模式发送物理层控制信息,包括:
    所述终端在第一区域中每个正交频分复用调制OFDM符号上,循环采用所述波束配对集合中配对的终端侧的波束来发送所述物理层控制信息;所述第一区域为网络设备调度给所述终端传输所述物理层控制信息的上行传输时频资源块的区域。
  3. 根据权利要求1或2所述的方法,其特征在于,所述终端采用第二多天线传输模式发送物理层数据信息,包括:
    所述终端在第二区域内基于所述波束配对集合中配对的终端侧的波束,生成传输层数为M的所述终端侧的波束来发送所述物理层数据信息,所述M为大于零且小于等于所述配对的终端侧的波束的个数的正整数;所述第二区域为网络设备调度给所述终端传输所述物理层数据信息的上行传输时频资源块的区域。
  4. 根据权利要求3所述的方法,其特征在于,还包括:
    所述终端接收第一调制编码指示信息,以及所述物理层数据信息传输的确认信息或非确认信息,所述第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
    所述终端根据所述确认信息或非确认信息,调整所述第一调制编码指示信息,获得第二调制编码指示信息,所述第二调制编码指示信息包括第二MCS或第二RI;
    其中,所述第二RI为所述传输层数M。
  5. 根据权利要求4所述的方法,其特征在于,所述物理层控制信息包括所述传输层数M和所述传输层数M中每一层的所述第二MCS。
  6. 根据权利要求2至5任一项所述的方法,其特征在于,
    所述第一区域和所述第二区域占据同一个调度给所述终端的上行传输时频资源块,且所述上行传输时频资源块在时域、频域上均连续。
  7. 根据权利要求2至6任一项所述的方法,其特征在于,
    终端发送所述物理层控制信息和所述物理层数据信息的波形为循环前缀正交频分复用CP-OFDM波形;
    所述第一区域和所述第二区域的时域相同、频域不同、且所述第一区域和所述第二区域在频域上相邻。
  8. 根据权利要求2至6任一项所述的方法,其特征在于,
    终端发送所述物理层控制信息和所述物理层数据信息的波形为离散傅立叶变换扩频正交频分复用DFT-s-OFDM波形;
    所述第一区域和所述第二区域的频域相同、时域不同、且所述第一区域和所述第二区域在时域上相邻。
  9. 一种数据传输方法,其特征在于,包括:
    网络设备向终端发送波束指示信息,所述波束指示信息包括波束管理流程输出的波束配对集合,所述波束配对集合包括配对的终端侧的波束;
    其中,所述波束管理流程是第一多天线传输模式和第二多天线传输模式共同基于的;
    所述第一多天线传输模式为所述终端发送物理层控制信息采用的多天线传输模式;
    所述第二多天线传输模式为所述终端发送物理层数据信息采用的多天线传输模式。
  10. 根据权利要求9所述的方法,其特征在于,还包括:
    网络设备向所述终端发送配置信息,所述配置信息包括第一区域占据调度给所述终端的上行传输时频资源块的子带宽度,或者,第一区域占据调度给所述终端的上行传输时频资源块的正交频分复用调制OFDM的符号个数。
  11. 根据权利要求9或10所述的方法,其特征在于,还包括:
    网络设备向所述终端发送第一调制编码指示信息,以及所述物理层数据信息传输的确认信息或非确认信息,所述第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
    其中,所述第一调制编码指示信息、所述物理层数据信息传输的确认信息或非确认信息用于确定所述物理层数据信息的传输层数。
  12. 一种终端,其特征在于,包括:
    发送单元,用于采用第一多天线传输模式发送物理层控制信息,采用第二多天线传输模式发送物理层控制信息和物理层数据信息;
    其中,所述第一多天线传输模式和所述第二多天线传输模式是基于同一个波束管理流程输出的相同的波束配对集合,所述波束配对集合包括配对的终端侧的波束。
  13. 根据权利要求12所述的终端,其特征在于,所述发送单元,具体用于在第一区域中每个正交频分复用调制OFDM符号上,循环采用所述波束配对集合中配对的终端侧的波束来发送所述物理层控制信息;所述第一区域为网络设备调度给所述终端传输所述物理层控制信息的上行传输时频资源块的区域。
  14. 根据权利要求12或13所述的终端,其特征在于,所述发送单元,具体用于在第二区域内基于所述波束配对集合中配对的终端侧的波束,生成传输层数为M的所述终端侧的波束来发送所述物理层数据信息,所述M为大于零且小于等于所述配对的终端侧的波束的个数的正整数;所述第二区域为网络设备调度给所述终端传输所述物理层数据信息的上行传输时频资源块的区域。
  15. 根据权利要求14所述的终端,其特征在于,还包括:
    接收单元,用于接收第一调制编码指示信息,以及所述物理层数据信息传输的确认信息或非确认信息,所述第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
    处理单元,用于根据所述确认信息或非确认信息,调整所述第一调制编码指示信息,获得第二调制编码指示信息,所述第二调制编码指示信息包括第二MCS或第二RI;
    其中,所述第二RI为所述传输层数M。
  16. 根据权利要求15所述的终端,其特征在于,所述物理层控制信息包括所述传输层数M和所述传输层数M中每一层的所述第二MCS。
  17. 根据权利要求13至16任一项所述的终端,其特征在于,
    所述第一区域和所述第二区域占据同一个调度给所述终端的上行传输时频资源块,且所述上行传输时频资源块在时域、频域上均连续。
  18. 根据权利要求13至17任一项所述的终端,其特征在于,
    终端发送所述物理层控制信息和所述物理层数据信息的波形为循环前缀正交频分复用CP-OFDM波形;
    所述第一区域和所述第二区域的时域相同、频域不同、且所述第一区域和所述第二区域在频域上相邻。
  19. 根据权利要求13至17任一项所述的终端,其特征在于,
    终端发送所述物理层控制信息和所述物理层数据信息的波形为离散傅立叶变换扩频正交频分复用DFT-s-OFDM波形;
    所述第一区域和所述第二区域的频域相同、时域不同、且所述第一区域和所述第二区域在时域上相邻。
  20. 一种网络设备,其特征在于,包括:
    发送单元,用于向终端发送波束指示信息,所述波束指示信息包括波束管理流程输出的波束配对集合,所述波束配对集合包括配对的终端侧的波束;
    其中,所述波束管理流程是第一多天线传输模式和第二多天线传输模式共同基于的;
    所述第一多天线传输模式为所述终端发送物理层控制信息采用的多天线传输模式;
    所述第二多天线传输模式为所述终端发送物理层数据信息采用的多天线传输模式。
  21. 根据权利要求20所述的网络设备,其特征在于,所述发送单元,还用于向所述终端发送配置信息,所述配置信息包括第一区域占据调度给所述终端的上行传输时频资源块的子带宽度,或者,第一区域占据调度给所述终端的上行传输时频资源块的正交频分复用调制OFDM的符号个数。
  22. 根据权利要求20或21所述的网络设备,其特征在于,所述发送单元,还用于向所述终端发送第一调制编码指示信息,以及所述物理层数据信息传输的确认信息或非确认信息,所述第一调制编码指示信息包含第一调制编码参数MCS或第一秩指示RI;
    其中,所述第一调制编码指示信息、所述物理层数据信息传输的确认信息或非确认信息用于确定所述物理层数据信息的传输层数。
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