WO2020029890A1 - Procédé de réception d'un signal de référence et appareil de communication - Google Patents

Procédé de réception d'un signal de référence et appareil de communication Download PDF

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Publication number
WO2020029890A1
WO2020029890A1 PCT/CN2019/099099 CN2019099099W WO2020029890A1 WO 2020029890 A1 WO2020029890 A1 WO 2020029890A1 CN 2019099099 W CN2019099099 W CN 2019099099W WO 2020029890 A1 WO2020029890 A1 WO 2020029890A1
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reference signal
period
terminal device
drx
uplink channel
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PCT/CN2019/099099
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English (en)
Chinese (zh)
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刘建琴
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communications, and more specifically, to a method for receiving a reference signal, a method for transmitting a reference signal, a method for transmitting an uplink channel, a method for receiving an uplink channel, and a communication device.
  • High-frequency bands especially millimeter-wave bands, with larger available bandwidth are increasingly becoming candidate bands for next-generation communication systems.
  • the high-frequency band will cause greater path loss, especially the influence of factors such as the atmosphere and vegetation, which will further exacerbate the loss of wireless propagation.
  • a signal transmission mechanism based on beamforming technology is adopted to compensate the above-mentioned loss in the signal propagation process through a large antenna gain.
  • the signal is transmitted based on the beamforming technology
  • the direction of the shaped beam corresponding to the transmitted signal no longer matches the position of the user after the movement, and the received signal is frequently interrupted.
  • a channel quality measurement and result reporting based on the beamforming technique is introduced.
  • the measurement of the channel quality may be based on a reference signal after beamforming.
  • a discontinuous reception (DRX) technology is proposed, that is, in the DRX mode, the terminal device can periodically enter a sleep state (sleep mode) in certain periods.
  • a sleep state sleep state
  • PDCCH physical downlink control channel
  • the shaped beam used by the terminal device may be changed due to movement and other reasons.
  • the terminal device is in the awake state during the period # 1, and the terminal device # 1 may complete the channel quality measurement based on the reference signal received by the beam # 1 during the period # 1, and then determine to use the beam # 1 for communication.
  • the terminal device enters the sleep state, and during the period # 2, the terminal device moves and leaves the coverage of the beam # 1.
  • the terminal device wakes up again, the information of the beam # 1 becomes invalid, or the terminal device cannot communicate based on the beam # 1, thereby causing communication errors, reducing the reliability of the communication, and severely affecting user experience.
  • the present application provides a method for receiving a downlink reference signal, a method for sending a downlink reference signal, a method for sending an uplink channel, a method for receiving an uplink channel, and a communication device, which can improve communication reliability and improve user experience.
  • a method for receiving a reference signal including: a terminal device receiving configuration information from a network device, the configuration information used to indicate a configuration parameter of the reference signal, wherein the configuration parameter of the reference signal is based on the terminal device.
  • the configuration parameters of the discontinuous reception DRX mode are determined, or the configuration parameters of the DRX mode are determined according to the configuration parameters of the reference signal; the terminal device receives the reference signal from the network device according to the configuration parameters of the reference signal.
  • the reference signal may include a reference signal.
  • the possibility of the terminal device completing beam training and channel quality measurement during the wake-up period can be improved, that is, the terminal device can be improved during wake-up
  • the possibility of obtaining information of the usable beams during this period can improve the reliability of communication and improve the user experience.
  • beam can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the configuration parameter of the reference signal includes a sending period T1 of the reference signal.
  • the configuration parameter of the DRX mode includes a period T2 of the DRX.
  • a DRX cycle may include a wake-up period and a sleep period.
  • the period T2 of the DRX can also be understood as the appearance period of the wake-up period in the DRX mode.
  • the wake-up period may include a period during which a duration timer is running.
  • the wake-up period may include a period during which a DRX-inactivity timer (drx-inactivity timer) runs.
  • the wake-up period may include a period during which a retransmission timer (ReTransmission Timer) runs.
  • ReTransmission Timer a retransmission timer
  • the sending period of the reference signal can also be understood as a time interval between sending periods of two neighboring reference signals of the same configuration.
  • the value of P may be predefined by a communication system or a communication protocol.
  • the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • the value of P may be predefined by a communication system or a communication protocol.
  • the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • start time of the first DRX cycle and the start time of the first reference signal transmission cycle may be the same.
  • the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal.
  • the base station may configure K reference signals for the UE, where K is an integer greater than or equal to 1, and when K is greater than 1, different reference signals may have different time domain position offsets.
  • the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.
  • the S1 may be used to determine a transmission start time of a reference signal, or the S1 may be used to determine a start time of a reference signal transmission period.
  • S2 can be used to determine the start time of the DRX cycle.
  • S2 may be used to determine a start time of a wake-up period within a DRX cycle.
  • the time domain position offset S1 of the reference signal may refer to an offset of a start time of a reference signal transmission period from a preset reference time.
  • the reference time may be the first time slot in a system frame, or any other fixed time point, which is not specifically limited herein.
  • the time domain position offset S1 of the reference signal may be used to determine the starting time of the reference signal.
  • the time domain position offset S2 of the wake-up period in the DRX mode can be used to determine the start time of the wake-up period in the DRX mode.
  • the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.
  • the system time domain range may be divided into multiple time units.
  • the time unit may include a symbol, a slot, a mini-slot, or a non-slot, a subframe, a transmission time interval, or a short transmission. time interval.
  • the time domain position offset S1 of the reference signal may refer to a start time unit (for example, a start subframe) of transmission of the reference signal.
  • the time domain position offset S1 of the reference signal may refer to an offset of a transmission time of the reference signal with respect to a start time of the transmission period in each reference signal transmission period. .
  • the time domain position offset S1 of the reference signal It can be the difference between t # 2 and t # 1.
  • each reference signal transmission period may include multiple time units.
  • the time domain position offset S1 of the reference signal may refer to each reference signal transmission period. Sequence numbers of time units corresponding to the sending period of the reference signal in a plurality of time units included in the sending period.
  • the time domain position offset S1 of the reference signal may be k, where k is a positive integer or zero.
  • the time domain position offset S1 of the reference signal may refer to an offset of a start time of the first reference signal transmission period from a predetermined system reference time. That is, in this application, the transmission time of the reference signal may coincide with the start time of the transmission cycle of the reference signal.
  • the unit of S1 in this application may be a slot.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to an offset of a start time of the wake-up period of the DRX from a preset reference time.
  • the system time domain range may be divided into multiple time units.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to a start time unit (for example, a start subframe) of a period of the DRX.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to an offset of the wake-up period with respect to a start time of the DRX cycle in each DRX cycle.
  • each DRX cycle may include multiple time units.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to each DRX cycle. Sequence numbers of time units corresponding to the wake-up period in a plurality of time units included in the DRX cycle.
  • the time-domain position offset S2 of the wake-up period of the DRX mode may be h, where h is a positive integer or zero.
  • the unit of the time unit in the sending cycle of the reference signal is the same as the unit of the time unit in the cycle of DRX, for example, the time unit in the sending cycle of the reference signal and the cycle of DRX
  • the time units in are all symbols. Or, for example, the time unit in the transmission period of the reference signal and the time unit in the period of DRX are both time slots.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to an offset of a start time of the first DRX cycle from a predetermined system reference time. That is, in this application, the start time of the wake-up period of the DRX mode may coincide with the start time of the DRX cycle in which it is located.
  • the offset that S2 can (specifically, the offset of the start position of the DRX cycle in the time domain) is denoted as drx-StartOffset, and, By way of example and not limitation, the unit of the drx-StartOffset may be milliseconds.
  • the S2 may include an offset of the wake-up period (specifically, an offset of a start position of the wake-up period within a DRX cycle), which is denoted as drx-SlotOffset, and, as an example Without limitation, the unit of the drx-SlotOffset may be a slot.
  • S2 may be an offset for determining a start time of a wake-up period, and is denoted as drx-StartOffset, and, as an example and not limitation, The unit can be milliseconds.
  • the wake-up period may include, but is not limited to, a period corresponding to at least one of the on-duration timers, drx-inactivity timers, and DRX Retransmission timers.
  • the transmission start time of the reference signal determined based on the S1 is not earlier than the start time of the DRX cycle determined based on the S2.
  • the starting time of the cycle #a may be determined based on the S2 (or the sending time of the reference signal may be determined based on the S2), and the starting time of the cycle #b may be determined based on S1, where the cycle # b's
  • the start time may be the same as the start time of the cycle #a, or the start time of the cycle #b may be located after the start time of the cycle #a.
  • the start time of the cycle #a may be determined based on the S2, and the start time of the wake-up period in the cycle #b may be determined based on S1, where the start time of the wake-up period in the cycle #b may be related to the The start time of the cycle #a is the same, or the start time of the wake-up period in the cycle #b may be after the start time of the cycle #a.
  • a time interval between a transmission start of the reference signal determined based on the S1 and a start time of the DRX cycle determined based on the S2 is less than or equal to a length of a wake-up period of the DRX mode.
  • the start time of the period #b falls within the wake-up period in the period #b.
  • the time domain position offset of at least one of the K reference signals is greater than or equal to the time domain position offset of the wake-up period of the DRX mode.
  • the time domain position offset of at least one reference signal in the K reference signals is such that the time domain position of the at least one reference signal is located in the wake-up period of the DRX mode.
  • the start time of the reference signal transmission period within the period #b of the reference signal is after the start time of the wake-up period of the period #a of the DRX.
  • S1 and S2 are mainly used to implement that the sending period of at least one of the K reference signals is not earlier than the wake-up period in the DRX cycle.
  • the time units (such as milliseconds, time slots, symbols, and so on) and representations used to characterize S1 and S2 may be the same or different, and are not specifically limited here.
  • S1 is greater than or equal to S2, which refers to the comparison between S1 and S2 based on the same reference standard and / or time unit.
  • the start time of the reference signal transmission period within the period #b of the reference signal is before the end time of the wake-up period of the period #a of the DRX.
  • the transmission period of the reference signal is within the wake-up period of the DRX within the DRX cycle and the reference signal transmission cycle at the same starting time, thereby ensuring that the terminal device receives the reference signal reliably.
  • the network device may send configuration information of K reference signals for the terminal device, where the reference signal having a corresponding relationship between the configuration parameter and the configuration parameter of the DRX mode may be one or more of the K reference signals .
  • K is an integer greater than or equal to two.
  • the K reference signals may further include one or more reference signals whose configuration parameters are not related to the configuration parameters of the DRX mode.
  • a method for sending a reference signal which includes: a network device sends configuration information to a terminal device, where the configuration information is used to indicate a configuration parameter of the reference signal, wherein the configuration parameter of the reference signal is The discontinuous reception DRX mode configuration parameters of the terminal device are determined, or the DRX mode configuration parameters are determined by the network device according to the configuration parameters of the reference signal; the network device reports the configuration parameters to the reference signal according to the configuration parameters of the reference signal.
  • the terminal device sends a reference signal.
  • the reference signal may include a downlink reference signal
  • the possibility that the terminal device completes beam training and channel quality measurement during the wake-up period can be improved, that is, the terminal device can obtain
  • the possibility of using available beam information can improve the reliability of communication and improve the user experience.
  • beam can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the configuration parameter of the reference signal includes a sending period T1 of the reference signal.
  • the configuration parameter of the DRX mode includes a period T2 of the DRX.
  • a DRX cycle may include a wake-up period and a sleep period.
  • the period T2 of the DRX can also be understood as the appearance period of the wake-up period in the DRX mode.
  • the wake-up period may include a period in which the duration timer runs.
  • the wake-up period may include a period during which the DRX inactive timer runs.
  • the wake-up period may include a period during which the retransmission timer runs.
  • the sending period of the reference signal can also be understood as a time interval between sending periods of two adjacent reference signals.
  • the value of P may be predefined by a communication system or a communication protocol.
  • the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • the value of Q may be predefined by a communication system or a communication protocol.
  • the value of Q may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • start time of the first DRX cycle and the start time of the first reference signal transmission cycle may be the same.
  • the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal.
  • the base station may configure K reference signals for the UE, where K is an integer greater than or equal to 1, and when K is greater than 1, different reference signals may have different time domain position offsets.
  • the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.
  • the time domain position offset of at least one of the K reference signals is greater than or equal to the time domain position offset of the wake-up period of the DRX mode.
  • the time domain position offset of at least one reference signal in the K reference signals is such that the time domain position of the at least one reference signal is located in the wake-up period of the DRX mode.
  • the time domain position offset S1 of the reference signal may refer to an offset of a transmission period of the reference signal with respect to a start time of the transmission period within each transmission period of the reference signal.
  • the time-domain position offset S1 of the reference signal may be used to determine a start time of the reference signal.
  • the time domain position offset S2 of the wake-up period in the DRX mode can be used to determine the start time of the wake-up period in the DRX mode.
  • the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.
  • the time domain position offset of the reference signal S1 can be the difference between t # 2 and t # 1.
  • each reference signal transmission period may include multiple time units.
  • the time domain position offset S1 of the reference signal may refer to each reference signal transmission period. Sequence numbers of time units corresponding to the sending period of the reference signal in a plurality of time units included in the sending period.
  • the time unit may include a symbol, a time slot, a mini time slot, a transmission time interval, or a short transmission time interval.
  • the time domain position offset S1 of the reference signal may be k, where k is a positive integer or zero.
  • the unit of S1 may include a slot.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to an offset of the wake-up period with respect to a start time of the DRX cycle in each DRX cycle.
  • each DRX cycle may include multiple time units.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to each DRX cycle. Sequence numbers of time units corresponding to the wake-up period in a plurality of time units included in the DRX cycle.
  • the time-domain position offset S2 of the wake-up period of the DRX mode may be h, where h is Positive integer or zero.
  • the unit of the time unit in the sending cycle of the reference signal is the same as the unit of the time unit in the cycle of DRX, for example, the time unit in the sending cycle of the reference signal and the cycle of DRX
  • the time units in are all symbols.
  • the time unit in the sending period of the reference signal and the time unit in the DRX cycle are both time slots or subframes, or any other time unit, which are not specifically limited herein.
  • the S2 may include the offset of the DRX cycle (specifically, the offset of the start position of the DRX cycle in the time domain), which is denoted as drx-StartOffset And, as an example and not limitation, the unit of the drx-StartOffset may be milliseconds.
  • the S2 may include an offset of the wake-up period (specifically, an offset of a start position of the wake-up period within a DRX cycle), which is denoted as drx-SlotOffset, and, as an example, Without limitation, the unit of the drx-SlotOffset may be a slot.
  • the wake-up period may include, but is not limited to, a period corresponding to at least one of the on-duration timers, drx-inactivity timers, and DRX Retransmission timers.
  • the time length corresponding to S1 is greater than or equal to the time length corresponding to S2.
  • the start time of the reference signal transmission period within the period #b of the reference signal is after the start time of the wake-up period of the period #a of the DRX.
  • S1 and S2 are mainly used to implement that the sending period of at least one of the K reference signals is not earlier than the wake-up period in the DRX cycle.
  • the time units (such as milliseconds, time slots, symbols, and so on) and representations used to characterize S1 and S2 may be the same or different, and are not specifically limited here.
  • S1 is greater than or equal to S2, which refers to the comparison between S1 and S2 based on the same reference standard and / or time unit.
  • the S1 may be used to determine a transmission start time of a reference signal, or the S1 may be used to determine a start time of a reference signal transmission period.
  • S2 can be used to determine the start time of the DRX cycle.
  • S2 may be used to determine a start time of a wake-up period within a DRX cycle.
  • the transmission start time of the reference signal determined based on the S1 is not earlier than the start time of the DRX cycle determined based on the S2.
  • the starting time of the cycle #a may be determined based on the S2 (or the sending time of the reference signal may be determined based on the S2), and the starting time of the cycle #b may be determined based on S1, where the cycle # b's
  • the start time may be the same as the start time of the cycle #a, or the start time of the cycle #b may be located after the start time of the cycle #a.
  • the start time of the cycle #a may be determined based on the S2, and the start time of the wake-up period in the cycle #b may be determined based on S1, where the start time of the wake-up period in the cycle #b may be related to the The start time of the cycle #a is the same, or the start time of the wake-up period in the cycle #b may be after the start time of the cycle #a.
  • a time interval between the transmission start of the reference signal determined based on the S1 and the start time of the DRX cycle determined based on the S2 is less than or equal to the length of the wake-up period of the DRX mode.
  • the start time of the period #b falls within the wake-up period in the period #b.
  • the difference between the time length corresponding to S1 and the time length corresponding to S2 is less than or equal to the time length of the wake-up period of the DRX mode.
  • the start time of the reference signal transmission period within the period #b of the reference signal is after the start time of the wake-up period of the period #a of the DRX.
  • the start time of the reference signal transmission period within the period #b of the reference signal is before the end time of the wake-up period of the period #a of the DRX.
  • the transmission period of the reference signal is within the wake-up period of the DRX within the DRX cycle and the reference signal transmission cycle at the same starting time, thereby ensuring that the terminal device receives the reference signal reliably.
  • the network device may send configuration information of K reference signals for the terminal device, where the reference signal having a corresponding relationship between the configuration parameter and the configuration parameter of the DRX mode may be one or more of the K reference signals .
  • K is an integer greater than or equal to two.
  • the K reference signals may further include one or more reference signals whose configuration parameters are not related to the configuration parameters of the DRX mode.
  • a method for transmitting an uplink channel including: receiving, by a terminal device, indication information of a first number of repetitions from a network device, where the first number of repetitions belongs to a first number of repetitions set, and the first number of repetitions set includes at least one The number of repetitions, the first set of repetition times is dedicated to a discontinuous reception DRX mode; the terminal device sends an uplink channel according to the first number of repetitions during a period in the DRX mode.
  • sending an uplink channel can be understood as sending information or signals on the uplink channel, for example, reference signals, data, or control information.
  • the uplink channel is used to carry channel quality information.
  • beam can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the first set of repetition times is dedicated to the discontinuous reception DRX mode. It can be understood that the first set of repetition times is used only in the DRX mode and cannot be used in the non-DRX mode.
  • the first set of repetition times is dedicated to the discontinuous reception DRX mode. It can be understood that the use of the second set of repetition times does not distinguish between DRX mode and non-DRX mode, that is, the second set of repetition times is under the use of DRX mode and non-DRX mode Both can be used, and the use of the first set of repetition times needs to distinguish between DRX mode and non-DRX mode, that is, the first set of repetition times is not used in non-DRX mode, and the first set of repetition times can be used in DRX mode.
  • the first set of repetition times dedicated to the discontinuous reception DRX mode can be understood as the set of repetition times used in the DRX mode (that is, the first set of repetition times) and the set of repetition times used in the non-DRX mode (that is, the first The set of two repetitions) is different.
  • the maximum number of repetitions in the first set of repetitions is greater than or equal to the maximum number of repetitions in the second set of repetitions, and the second set of repetitions includes at least one number of repetitions.
  • the second set of repetitions includes at least one number of repetitions.
  • the first set of repetition times dedicated to the discontinuous reception DRX mode can be understood as the set of repetition times used in the DRX mode (ie, the first set of repetition times) relative to the set of repetition times used in the non-DRX mode (ie, The second set of repetition times) is independently configured.
  • the uplink channel is transmitted in a non-repeating transmission manner, which is equivalent to the number of repetitions of the uplink channel being 1.
  • the first set of repetition times is dedicated to the discontinuous reception DRX mode.
  • the transmission quality information can be transmitted in a repeated transmission mode (that is, a transmission mode based on the first set of repetition times).
  • a non-repeated transmission mode (or a one-time transmission mode) can be used to transmit channel quality information.
  • the terminal device sending an uplink channel according to the first repetition number during a period in the DRX mode includes: the terminal device receiving a beam of the uplink channel during the period in the DRX mode Before the indication information, the uplink channel is sent according to the first repetition number.
  • the method further includes: after the terminal device is in the DRX mode, after receiving the beam indication information of the uplink channel, sending the confirmation information to the network device, the confirmation information is used to instruct the terminal
  • the device receives the beam indication information of the uplink channel; the terminal device sends the uplink channel according to a second repetition number, the second repetition number belongs to a second repetition number set, the second repetition number set includes at least one repetition number, and the second The repetition set is dedicated to non-DRX mode.
  • the "beam instruction information" in the “beam instruction information used to indicate that the terminal device receives the uplink channel” refers to the same beam instruction information, that is, the beam instruction information of a beam used by the terminal device for the uplink channel to be transmitted.
  • the terminal device in the DRX mode By enabling the terminal device in the DRX mode to transmit the uplink channel with a small number of repeated transmissions after receiving the beam indication information of the uplink channel, power consumption can be reduced.
  • the method further includes: after the terminal device is in the DRX mode, after receiving the beam indication information of the uplink channel, sending the confirmation information to the network device, the confirmation information is used to instruct the terminal
  • the device receives the beam indication information of the uplink channel; the terminal device sends the uplink channel in a non-repeating transmission manner.
  • the terminal device By enabling the terminal device to send the uplink channel in a non-repeating transmission manner after receiving the beam indication information of the uplink channel in the DRX mode, power consumption and resource waste caused by repeatedly sending the uplink channel can be reduced.
  • a method for receiving an uplink channel including: sending, by a network device, indication information of a first repetition number to a terminal device, where the first repetition number belongs to a first repetition number set, and the first repetition number set includes at least one The number of repetitions, the first set of repetition times is dedicated to the discontinuous reception DRX mode; the network device receives the uplink channel according to the first number of repetitions while the terminal device is in the DRX mode.
  • receiving an uplink channel can be understood as receiving information or signals on the uplink channel, for example, reference signals, data, or control information.
  • the uplink channel is used to carry channel quality information.
  • beam can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the first set of repetition times is dedicated to the discontinuous reception DRX mode. It can be understood that the first set of repetition times is used only in the DRX mode and cannot be used in the non-DRX mode.
  • the first set of repetition times dedicated to the discontinuous reception DRX mode can be understood as the set of repetition times used in the DRX mode (that is, the first set of repetition times) and the set of repetition times used in the non-DRX mode (that is, the first The set of two repetitions) is different.
  • the maximum number of repetitions in the first set of repetitions is greater than or equal to the maximum number of repetitions in the second set of repetitions, and the second set of repetitions includes at least one number of repetitions.
  • the second set of repetition times is not dedicated to DRX mode.
  • the first set of repetition times dedicated to the discontinuous reception DRX mode can be understood as the set of repetition times used in the DRX mode (ie, the first set of repetition times) relative to the set of repetition times used in the non-DRX mode (ie, The second set of repetition times) is independently configured.
  • the uplink channel is transmitted in a non-repeating transmission manner, which is equivalent to the number of repetitions of the uplink channel being 1.
  • the first set of repetition times is dedicated to the discontinuous reception DRX mode.
  • the transmission quality information can be transmitted in a repeated transmission mode (that is, a transmission mode based on the first set of repetition times).
  • a non-repeated transmission mode (or a one-time transmission mode) can be used to transmit channel quality information.
  • the network device sends beam indication information of the uplink channel to the terminal device; and the network device receives the uplink channel according to the first set of repetition times while the terminal device is in the DRX mode, including: : During the period when the terminal device is in the DRX mode, the network device receives an uplink channel according to the first repetition number before receiving the confirmation information sent by the terminal device, and the confirmation information is used to instruct the terminal device to receive Beam indication information of the uplink channel.
  • the method further includes: the network device sends beam indication information of the uplink channel to the terminal device; the network device receives a confirmation sent by the terminal device during a period when the terminal device is in the DRX mode After the information is received, the uplink channel is received according to a second repetition number, which belongs to a second repetition number set, the second repetition number set includes at least one repetition number, the second repetition number set is used in a non-DRX mode, the confirmation The information is used to indicate that the terminal device receives beam indication information of the uplink channel.
  • the terminal device in the DRX mode By enabling the terminal device in the DRX mode to transmit the uplink channel with a small number of repeated transmissions after receiving the beam indication information of the uplink channel, power consumption can be reduced.
  • the method further includes: the network device sends beam indication information of the uplink channel to the terminal device; the network device receives a confirmation sent by the terminal device during a period when the terminal device is in the DRX mode After the information is received, the uplink channel is received in a non-repeated transmission manner, and the confirmation information is used to indicate that the terminal device receives beam indication information of the uplink channel.
  • the terminal device By enabling the terminal device to send the uplink channel in a non-repeating transmission manner after receiving the beam indication information of the uplink channel in the DRX mode, power consumption caused by repeatedly sending the uplink channel can be reduced.
  • a method for sending an uplink channel including: a terminal device receiving configuration information from a network device, where the configuration information is used to indicate a configuration parameter of the uplink channel, wherein the configuration parameter of the uplink channel is based on the terminal device.
  • the configuration parameters of the discontinuous reception DRX mode are determined, or the configuration parameters of the DRX mode are determined according to the configuration parameters of the uplink channel; the terminal device sends the uplink channel to the network device according to the configuration parameters of the uplink channel.
  • the “sending uplink channel” can be understood as sending information or signals on the uplink channel, for example, data, control information, or reference signals.
  • the uplink channel is used to carry a sounding reference signal (SRS).
  • SRS sounding reference signal
  • the uplink channel is used to carry channel quality information.
  • the channel quality information may be determined after the terminal device performs channel quality measurement according to the downlink reference signal sent by the network device.
  • the possibility that the terminal device completes beam training and channel quality measurement during the wake-up period can be improved, that is, the terminal device can be obtained during the wake-up period.
  • the possibility of using available beam information can improve the reliability of communication and improve the user experience.
  • beam can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the configuration parameter of the uplink channel includes a sending period T1 of the uplink channel.
  • the configuration parameter of the DRX mode includes a period T2 of the DRX.
  • a DRX cycle may include a wake-up period and a sleep period.
  • the period T2 of the DRX can also be understood as the appearance period of the wake-up period in the DRX mode.
  • the wake-up period may include a period in which the duration timer runs.
  • the wake-up period may include a period during which the DRX inactive timer runs.
  • the wake-up period may include a period during which the retransmission timer runs.
  • the transmission period of the uplink channel may also be understood as a time interval between transmission periods of two adjacent uplink channels with the same configuration.
  • the value of P may be predefined by a communication system or a communication protocol.
  • the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • the value of Q may be predefined by a communication system or a communication protocol.
  • the value of Q may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • start time of the first DRX cycle and the start time of the first uplink channel transmission cycle may be the same.
  • the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel.
  • the base station may configure K reference signals for the UE, where K is an integer greater than or equal to 1, and when K is greater than 1, different reference signals may have different time domain position offsets.
  • the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.
  • the time domain position offset of at least one of the K reference signals is greater than or equal to the time domain position offset of the wake-up period of the DRX mode.
  • the time domain position offset of at least one reference signal in the K reference signals is such that the time domain position of the at least one reference signal is located in the wake-up period of the DRX mode.
  • the time domain position offset S1 of the uplink channel may refer to an offset of a transmission period of the uplink channel with respect to a start time of the transmission period in each uplink channel transmission period.
  • the time domain position offset S1 of the reference signal may refer to an offset of a start time of a reference signal transmission period from a preset reference time.
  • the reference time may be the first time slot in a system frame, or any other fixed time point, which is not specifically limited herein.
  • the time-domain position offset S1 of the reference signal may be used to determine a start time of the reference signal.
  • the time domain position offset S2 of the wake-up period in the DRX mode can be used to determine the start time of the wake-up period in the DRX mode.
  • the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.
  • the transmission period of each uplink channel may include multiple time units.
  • the time domain position offset S1 of the uplink channel may refer to the transmission period of each uplink channel.
  • the time unit may include a symbol, a time slot, a mini time slot, a subframe, a transmission time interval, or a short transmission time interval.
  • the time domain position offset S1 of the uplink channel may be k, where k is a positive integer or zero.
  • the unit of S1 may include a slot.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to an offset of the wake-up period with respect to a start time of the DRX cycle in each DRX cycle.
  • the start time of the DRX cycle #a be t # a and the start time of the wake-up period in the DRX cycle #a be t # b, then the time domain position offset S2 of the wake-up period of the DRX mode It can be the difference between t # b and t # a.
  • each DRX cycle may include multiple time units.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to each DRX cycle. Sequence numbers of time units corresponding to the wake-up period in a plurality of time units included in the DRX cycle.
  • the time-domain position offset S2 of the wake-up period of the DRX mode may be h, where h is Positive integer or zero.
  • the unit of the time unit in the transmission cycle of the uplink channel is the same as the unit of the time unit in the cycle of DRX, for example, the time unit in the transmission cycle of the uplink channel and the cycle of DRX
  • the time units in are all symbols.
  • the time unit in the sending cycle of the uplink channel and the time unit in the DRX cycle are both time slots or subframes, or any other time unit, which are not specifically limited herein.
  • the S2 may include the offset of the DRX cycle (specifically, the offset of the start position of the DRX cycle in the time domain), which is denoted as drx-StartOffset And, as an example and not limitation, the unit of the drx-StartOffset may be milliseconds.
  • the S2 may include an offset of the wake-up period (specifically, an offset of a start position of the wake-up period within a DRX cycle), which is denoted as drx-SlotOffset, and, as an example, Without limitation, the unit of the drx-SlotOffset may be a slot.
  • the wake-up period may include, but is not limited to, a period corresponding to at least one of the on-duration timers, drx-inactivity timers, and DRX Retransmission timers.
  • the S1 may be used to determine a transmission start time of a reference signal, or the S1 may be used to determine a start time of a reference signal transmission period.
  • S2 can be used to determine the start time of the DRX cycle.
  • S2 may be used to determine a start time of a wake-up period within a DRX cycle.
  • the transmission start time of the reference signal determined based on the S1 is not earlier than the start time of the DRX cycle determined based on the S2.
  • the starting time of the cycle #a may be determined based on the S2 (or the sending time of the reference signal may be determined based on the S2), and the starting time of the cycle #b may be determined based on S1, where the cycle # b's
  • the start time may be the same as the start time of the cycle #a, or the start time of the cycle #b may be located after the start time of the cycle #a.
  • the start time of the cycle #a may be determined based on the S2, and the start time of the wake-up period in the cycle #b may be determined based on S1, where the start time of the wake-up period in the cycle #b may be related to the The start time of the cycle #a is the same, or the start time of the wake-up period in the cycle #b may be after the start time of the cycle #a.
  • a time interval between a transmission start of the reference signal determined based on the S1 and a start time of the DRX cycle determined based on the S2 is less than or equal to a length of a wake-up period of the DRX mode.
  • the start time of the period #b falls within the wake-up period in the period #b.
  • the start time of the reference signal transmission period within the period #b of the reference signal is after the start time of the wake-up period of the period #a of the DRX.
  • S1 and S2 are mainly used to implement that the sending period of at least one of the K reference signals is not earlier than the wake-up period in the DRX cycle.
  • the time units (such as milliseconds, time slots, symbols, and so on) and representations used to characterize S1 and S2 may be the same or different, and are not specifically limited here.
  • S1 is greater than or equal to S2, which refers to the comparison between S1 and S2 based on the same reference standard and / or time unit.
  • the difference between the time length corresponding to S1 and the time length corresponding to S2 is less than or equal to the time length of the wake-up period of the DRX mode.
  • the start time of the uplink channel transmission period within the period #b of the uplink channel is before the end time of the wake-up period of the period #a of the DRX.
  • S1 when the uplink channel is used to carry SRS, S1 may also be less than or equal to S2. That is, the uplink channel can be transmitted before the wake-up time of the DRX cycle.
  • the transmission period of the uplink channel is within the wake-up period of the DRX in the DRX cycle and the uplink channel transmission cycle at the same starting time, thereby ensuring that the terminal device reliably transmits to the uplink channel.
  • a method for receiving an uplink channel including: the network device sends configuration information to a terminal device, where the configuration information is used to indicate configuration parameters of the uplink channel, where the configuration parameters of the uplink channel are The terminal device's discontinuous reception DRX mode configuration parameter is determined, or the DRX mode configuration parameter is determined by the network device according to the configuration parameter of the uplink channel; the network device is determined from the configuration parameter of the uplink channel from the The terminal device receives the uplink channel.
  • the “receiving uplink channel” can be understood as receiving information or signals through the uplink channel, for example, data, control information, or reference signals.
  • the uplink channel is used to carry a sounding reference signal.
  • the uplink channel is used to carry channel quality information.
  • the channel quality information may be determined after the terminal device performs channel quality measurement according to the downlink reference signal sent by the network device.
  • the possibility that the terminal device completes beam training and channel quality measurement during the wake-up period can be improved, that is, the terminal device can be obtained
  • the possibility of using available beam information can improve the reliability of communication and improve the user experience.
  • beam can be understood as a spatial filter or a spatial parameter.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • beam can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.
  • the configuration parameter of the uplink channel includes a sending period T1 of the uplink channel.
  • the configuration parameter of the DRX mode includes a period T2 of the DRX.
  • a DRX cycle may include a wake-up period and a sleep period.
  • the period T2 of the DRX can also be understood as the appearance period of the wake-up period in the DRX mode.
  • the wake-up period may include a period during which the timer is running.
  • the wake-up period may include a period during which the drx-inactivity timer is running.
  • the wake-up period may include a period during which the ReTransmission Timer is running.
  • the transmission period of the uplink channel may also be understood as a time interval between transmission periods of two adjacent uplink channels with the same configuration.
  • the value of P may be predefined by a communication system or a communication protocol.
  • the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • the value of Q may be predefined by a communication system or a communication protocol.
  • the value of Q may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.
  • start time of the first DRX cycle and the start time of the first uplink channel transmission cycle may be the same.
  • the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel.
  • the base station may configure K reference signals for the UE, where K is an integer greater than or equal to 1, and when K is greater than 1, different reference signals may have different time domain position offsets.
  • the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.
  • the time domain position offset of at least one of the K reference signals is greater than or equal to the time domain position offset of the wake-up period of the DRX mode.
  • the time domain position offset S1 of the uplink channel may refer to an offset of a transmission period of the uplink channel with respect to a start time of the transmission period in each uplink channel transmission period.
  • the time domain position offset S1 of the reference signal may refer to an offset of a start time of a reference signal transmission period from a preset reference time.
  • the reference time may be the first time slot in a system frame, or any other fixed time point, which is not specifically limited herein.
  • the time-domain position offset S1 of the reference signal may be used to determine a start time of the reference signal.
  • the time domain position offset S2 of the wake-up period in the DRX mode can be used to determine the start time of the wake-up period in the DRX mode.
  • the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.
  • the time domain position offset of the uplink channel S1 can be the difference between t # 2 and t # 1.
  • the transmission period of each uplink channel may include multiple time units.
  • the time domain position offset S1 of the uplink channel may refer to the transmission period of each uplink channel. Sequence numbers of time units corresponding to the sending period of the uplink channel in a plurality of time units included in the sending period.
  • the time unit may include a symbol, a time slot, a mini time slot, a subframe, a transmission time interval, or a short transmission time interval.
  • the time domain position offset S1 of the uplink channel may be k, where k is a positive integer or zero.
  • the unit of S1 may include a slot.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to an offset of the wake-up period with respect to a start time of the DRX cycle in each DRX cycle.
  • the start time of the DRX cycle #a be t # a and the start time of the wake-up period in the DRX cycle #a be t # b, then the time domain position offset S2 of the wake-up period of the DRX mode It can be the difference between t # b and t # a.
  • each DRX cycle may include multiple time units.
  • the time domain position offset S2 of the wake-up period of the DRX mode may refer to each DRX cycle. Sequence numbers of time units corresponding to the wake-up period in a plurality of time units included in the DRX cycle.
  • the time-domain position offset S2 of the wake-up period of the DRX mode may be h, where h is Positive integer or zero.
  • the unit of the time unit in the transmission cycle of the uplink channel is the same as the unit of the time unit in the cycle of DRX, for example, the time unit in the transmission cycle of the uplink channel and the cycle of DRX
  • the time units in are all symbols.
  • the time unit in the sending cycle of the uplink channel and the time unit in the DRX cycle are both time slots or subframes, or any other time unit, which are not specifically limited herein.
  • the S2 may include the offset of the DRX cycle (specifically, the offset of the start position of the DRX cycle in the time domain), which is denoted as drx-StartOffset And, as an example and not limitation, the unit of the drx-StartOffset may be milliseconds.
  • the S2 may include an offset of the wake-up period (specifically, an offset of a start position of the wake-up period within a DRX cycle), which is denoted as drx-SlotOffset, and, as an example, Without limitation, the unit of the drx-SlotOffset may be a slot.
  • the wake-up period may include, but is not limited to, a period corresponding to at least one of the on-duration timers, drx-inactivity timers, and DRX Retransmission timers.
  • the S1 may be used to determine a transmission start time of a reference signal, or the S1 may be used to determine a start time of a reference signal transmission period.
  • S2 can be used to determine the start time of the DRX cycle.
  • S2 may be used to determine a start time of a wake-up period within a DRX cycle.
  • the transmission start time of the reference signal determined based on the S1 is not earlier than the start time of the DRX cycle determined based on the S2.
  • the starting time of the cycle #a may be determined based on the S2 (or the sending time of the reference signal may be determined based on the S2), and the starting time of the cycle #b may be determined based on S1, where the cycle # b's
  • the start time may be the same as the start time of the cycle #a, or the start time of the cycle #b may be located after the start time of the cycle #a.
  • the start time of the cycle #a may be determined based on the S2, and the start time of the wake-up period in the cycle #b may be determined based on S1, where the start time of the wake-up period in the cycle #b may be related to the The start time of the cycle #a is the same, or the start time of the wake-up period in the cycle #b may be after the start time of the cycle #a.
  • a time interval between a transmission start of the reference signal determined based on the S1 and a start time of the DRX cycle determined based on the S2 is less than or equal to a length of a wake-up period of the DRX mode.
  • the start time of the period #b falls within the wake-up period in the period #b.
  • the start time of the reference signal transmission period within the period #b of the reference signal is after the start time of the wake-up period of the period #a of the DRX.
  • S1 and S2 are mainly used to implement that the sending period of at least one of the K reference signals is not earlier than the wake-up period in the DRX cycle.
  • the time units (such as milliseconds, time slots, symbols, and so on) and representations used to characterize S1 and S2 may be the same or different, and are not specifically limited here.
  • S1 is greater than or equal to S2, which refers to the comparison between S1 and S2 based on the same reference standard and / or time unit.
  • the start time of the uplink channel transmission period in the period #b of the uplink channel is after the start time of the wake-up period in the period #a of the DRX.
  • the start time of the uplink channel transmission period within the period #b of the uplink channel is before the end time of the wake-up period of the period #a of the DRX.
  • the transmission period of the uplink channel is within the wake-up period of the DRX in the same DRX cycle and the uplink channel transmission cycle, thereby ensuring that the terminal device reliably transmits the uplink channel.
  • a communication device including a unit for performing each step of the method in any one of the first to sixth aspects and the implementation methods thereof.
  • the wake-up period of DRX in the solution of the present application may include an On_duration time period dedicated to downlink control channel detection in the DRX cycle, and an uplink or downlink data transmission time period (Inactivity time period) and data after the PDCCH detects data transmission. Transmission of at least one of HARQ and RTT periods of acknowledgement.
  • the communication device is a communication chip
  • the communication chip may include an input circuit or interface for transmitting information or data, and an output circuit or interface for receiving information or data.
  • the communication device is a communication device (for example, a terminal device or a network device), and the communication chip may include a transmitter for transmitting information or data, and a receiver for receiving information or data.
  • a terminal device including a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the terminal device executes the first aspect or any possible implementation manner of the first aspect Method, or the method in the third aspect or any one of the possible implementations of the third aspect, or the method in the fifth aspect or any one of the possible implementations of the fifth aspect.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory is separately provided from the processor.
  • a network device including a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the network device executes the second aspect or any possible implementation manner of the second aspect Method, or the method in the fourth aspect or any one of the possible implementations of the fourth aspect, or the method in the sixth aspect or any one of the possible implementations of the sixth aspect.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory is separately provided from the processor.
  • the foregoing processor may be used to perform, for example, but not limited to, baseband related processing, and the receiver and the transmitter may be respectively used to perform, such as, but not limited to, radio frequency transceiver.
  • the above devices may be provided on separate chips, or at least partly or entirely on the same chip.
  • the receiver and the transmitter may be provided on the receiver chip and the transmitter chip which are independent of each other. It can be integrated into a transceiver and then set on the transceiver chip.
  • the processor may be further divided into an analog baseband processor and a digital baseband processor.
  • the analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on a separate chip.
  • digital baseband processors can be used with multiple application processors (such as, but not limited to, graphics processors, multimedia processors, etc.) Integrated on the same chip.
  • application processors such as, but not limited to, graphics processors, multimedia processors, etc.
  • Such a chip may be referred to as a system chip. Whether each device is independently set on a different chip or integrated on one or more chips often depends on the specific needs of the product design. The embodiment of the present application does not limit the specific implementation form of the device.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes any one of the first aspect to the sixth aspect and any possible implementation manner of the first aspect to the sixth aspect.
  • the processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • An input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • a signal output by the output circuit may be, for example, but not limited to, output to a transmitter and transmitted by the transmitter
  • the circuits may be the same circuit, which are used as input circuits and output circuits respectively at different times.
  • the embodiments of the present application do not limit specific implementations of the processor and various circuits.
  • a processing device including: a memory and a processor.
  • the processor is configured to read an instruction stored in the memory, and can receive a signal through a receiver and transmit a signal through a transmitter to execute any one of the first to sixth aspects and the first to sixth aspects. Method in implementation.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory is separately provided from the processor.
  • the memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated on the same chip as the processor, or may be separately set in different On the chip, the embodiment of the present application does not limit the type of the memory and the way of setting the memory and the processor.
  • ROM read-only memory
  • a chip including a processor and a memory, where the memory is used to store a computer program, the processor is used to call and run the computer program from the memory, and the computer program is used to implement the first aspect to the first
  • the method in the six aspects and any one of the possible implementation methods of the first to sixth aspects.
  • a computer program product includes a computer program (also referred to as code or instructions), and when the computer program is executed, causes a computer to execute the first aspect to The sixth aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a computer program also referred to as code or instructions
  • a computer-readable medium stores a computer program (also referred to as code, or instructions), which when executed on a computer, causes the computer to execute the first aspect to The sixth aspect and the method in any one of the possible implementation manners of the first aspect to the sixth aspect.
  • a computer program also referred to as code, or instructions
  • the possibility of the terminal device completing beam training and channel quality measurement during the wake-up period can be improved, that is, the terminal device can be improved during the wake-up period
  • the possibility of obtaining information on the available beams can improve the reliability of communication and improve the user experience.
  • FIG. 1 is a schematic architecture diagram of a communication system of the present application.
  • FIG. 2 is a schematic diagram of a configuration of the DRX.
  • FIG. 3 is a schematic flowchart of an example of a downlink reference signal transmission process of the present application.
  • FIG. 4 is a schematic diagram of an example of a configuration of a downlink reference signal determined based on a configuration parameter of DRX.
  • FIG. 5 is a schematic diagram of another example of a configuration of a downlink reference signal determined based on a configuration parameter of DRX.
  • FIG. 6 is a schematic diagram of still another example of a configuration of a downlink reference signal determined based on a configuration parameter of DRX.
  • FIG. 7 is a schematic diagram of an example of a transmission process of an uplink channel of the present application.
  • FIG. 8 is a schematic diagram of an example of an uplink channel configuration of the present application.
  • FIG. 9 is a schematic diagram of another example of a transmission process of an uplink channel of the present application.
  • FIG. 10 is a schematic diagram of an example of an uplink channel configuration determined based on DRX configuration parameters.
  • FIG. 11 is a schematic diagram of another example of an uplink channel configuration determined based on DRX configuration parameters.
  • FIG. 12 is a schematic diagram of still another example of an uplink channel configuration determined based on DRX configuration parameters.
  • FIG. 13 is a schematic block diagram of an example of a communication device of the present application.
  • FIG. 14 is a schematic block diagram of an example of a terminal device of the present application.
  • FIG. 15 is a schematic block diagram of another example of a communication device of the present application.
  • FIG. 16 is a schematic block diagram of an example of a network device of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Global Interoperability for Microwave Access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device , User terminal, terminal, wireless communication device, user agent, or user device.
  • Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or public land mobile network (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • PLMN public land mobile network
  • the terminal device may also be a wearable device.
  • Wearable devices can also be referred to as wearable smart devices. They are the general name for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a device that is worn directly on the body or is integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also powerful functions through software support, data interaction, and cloud interaction.
  • Broad-spectrum wearable smart devices include full-featured, large-sized, full or partial functions that do not rely on smart phones, such as smart watches or smart glasses, and only focus on certain types of application functions, and need to cooperate with other devices such as smart phones Use, such as smart bracelets, smart jewelry, etc. for physical signs monitoring.
  • the terminal device may also be a terminal device in an Internet of Things (IoT) system.
  • IoT Internet of Things
  • the IoT is an important part of the development of future information technology. Its main technical feature is to pass items through communication technology. It is connected to the network to realize the intelligent network of human-machine interconnection and physical interconnection.
  • the IOT technology may implement, for example, narrow band NB technology, to achieve mass connection, deep coverage, and terminal power saving.
  • the NB includes only one resource block (RB), that is, the bandwidth of the NB is only 180 KB.
  • RB resource block
  • the terminals must be discrete in access. According to the communication method of the embodiment of the present application, the congestion problem of mass terminals of IOT technology when accessing the network through NB can be effectively solved.
  • the terminal equipment may also include sensors such as smart printers, train detectors, and gas stations.
  • the main functions include collecting data (some terminal equipment), receiving control information and downlink data from network equipment, and sending electromagnetic waves to Network equipment transmits uplink data.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a Global System for Mobile Communication (GSM) system or a Code Division Multiple Access (CDMA) system.
  • the base station (Base Transceiver Station (BTS)) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • the base station can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, and future
  • a network device in a 5G network or a network device in a future evolved PLMN network may be an access point (AP) in a WLAN, or a gNB in a new wireless (NR) system
  • AP access point
  • gNB new wireless
  • an access network device provides services to a cell
  • a terminal device communicates with the access network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell.
  • a transmission resource for example, a frequency domain resource or a spectrum resource
  • It may be a cell corresponding to an access network device (such as a base station), and the cell may belong to a macro base station or a small cell.
  • the small cell here may include: a metro cell, a micro cell ( micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.
  • multiple carriers on the carrier in the LTE system or 5G system can work on the same frequency at the same time.
  • the above carrier and cell concepts can be considered equivalent.
  • CA carrier aggregation
  • the concept of a carrier is the same as a cell.
  • a UE accessing a carrier and accessing a cell are equivalent.
  • the core network device may be connected to multiple access network devices for controlling the access network device, and may distribute data received from the network side (for example, the Internet) to the access network device.
  • the network side for example, the Internet
  • the network device may include a base station (gNB), such as a macro station, a micro base station, an indoor hotspot, and a relay node.
  • a base station such as a macro station, a micro base station, an indoor hotspot, and a relay node.
  • the function is to send radio waves to the terminal device.
  • the aspect sends scheduling information to control uplink transmission, and receives radio waves sent by the terminal device, and receives uplink data transmission.
  • terminal equipment The functions and specific implementations of the terminal equipment, access network equipment, and core network equipment listed above are only exemplary descriptions, and the present application is not limited thereto.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • This application layer contains applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application.
  • the communication may be performed by using the method described above.
  • the method execution subject provided in the embodiments of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CD), digital versatile discs (DVD) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media used to store information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.
  • multiple application programs can be run at the application layer.
  • the application program that executes the communication method of the embodiment of the present application and the method for controlling the receiving end device to complete the received data The application of the corresponding action may be a different application.
  • FIG. 1 is a schematic diagram of a system 100 capable of applying a communication method according to an embodiment of the present application.
  • the system 100 includes an access network device 102, and the access network device 102 may include one antenna or multiple antennas, for example, antennas 104, 106, 108, 110, 112, and 114.
  • the access network device 102 may additionally include a transmitter chain and a receiver chain.
  • Those of ordinary skill in the art can understand that each of them can include multiple components related to signal transmission and reception (such as a processor, a modulator, Router, demodulator, demultiplexer or antenna, etc.).
  • the access network device 102 may communicate with multiple terminal devices (such as the terminal device 116 and the terminal device 122). However, it can be understood that the access network device 102 can communicate with any number of terminal devices similar to the terminal device 116 or the terminal device 122.
  • the terminal devices 116 and 122 may be, for example, cellular phones, smartphones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and / or any other suitable for communicating on the wireless communication system 100 device.
  • the terminal device 116 communicates with the antennas 112 and 114, where the antennas 112 and 114 send information to the terminal device 116 through a forward link (also referred to as a downlink) 118, and through the reverse link (also (Referred to as the uplink) 120 receives information from the terminal device 116.
  • the terminal device 122 communicates with the antennas 104 and 106, where the antennas 104 and 106 send information to the terminal device 122 through the forward link 124 and receive information from the terminal device 122 through the reverse link 126.
  • forward link 118 may use a different frequency band from reverse link 120, and forward link 124 may use a different frequency band than reverse link 126.
  • the frequency band may be used in a frequency division duplex (FDD) system.
  • FDD frequency division duplex
  • the forward link 118 and the reverse link 120 may use a common frequency band
  • the link 126 may use a common frequency band.
  • Each antenna (or antenna group consisting of multiple antennas) and / or area designed for communication is called a sector of the access network device 102.
  • the antenna group may be designed to communicate with terminal equipment in a sector covered by the access network equipment 102.
  • the access network device can send signals to all terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity.
  • the transmitting antenna of the access network device 102 can also use beamforming to improve the forward link 118 and 124. Signal to noise ratio.
  • the access network device 102 uses beamforming to randomly scattered terminal devices 116 and 122 in the relevant coverage area. When transmitting signals, mobile devices in adjacent cells experience less interference.
  • the access network device 102, the terminal device 116, or the terminal device 122 may be a wireless communication sending device and / or a wireless communication receiving device.
  • the wireless communication transmitting device may encode the data for transmission.
  • the wireless communication transmitting device may obtain (for example, generate, receive from another communication device, or save in a memory, etc.) a certain number of data bits to be transmitted to the wireless communication receiving device through a channel.
  • Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to generate multiple code blocks.
  • the communication system 100 may be a PLMN network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an IoT network, or other networks.
  • FIG. 1 is only a simplified schematic diagram of an example.
  • the network may also include other access network equipment, which is not shown in Figure 1.
  • data or information may be carried by time-frequency resources, where the time-frequency resources may include resources in the time domain and resources in the frequency domain.
  • the time-frequency resource may include one or more time units.
  • a time unit can be a symbol, or a mini-slot, or a slot, or a subframe, where the duration of a subframe in the time domain can be It is 1 millisecond (ms).
  • a time slot consists of 7 or 14 symbols.
  • a mini time slot can include at least one symbol (for example, 2 symbols or 4 symbols or 7 symbols, or less than or equal to 14 symbols). Any number of symbols).
  • two communication devices having a communication connection may respectively obtain a gain through beam forming.
  • the transmitting end for example, a network device
  • the receiving end for example, a terminal device
  • the transmitting end may obtain a pairing relationship between a transmitting beam and a receiving beam through beam training.
  • the beam can be understood as a spatial filter or a spatial parameter.
  • the beam used to send the signal can be called a transmission beam (transmission beam, Tx beam), which can be a spatial transmission filter (spatial domain transmission filter) or a spatial transmission parameter (spatial domain transmission parameter);
  • the beam used to receive the signal can be called To receive the beam (reception beam, Rx beam), it can be a spatial receive filter (spatial domain receive filter) or a spatial receive parameter (spatial domain receive parameter).
  • the beam forming technology may be a beam forming technology or other technologies.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology.
  • a transmitting beam may refer to a signal intensity distribution in different directions of a space after a signal is transmitted through an antenna
  • a receiving beam may refer to a signal intensity distribution of a wireless signal received from an antenna in different directions in space.
  • the beam may be, for example, a spatial filter.
  • a spatial filter for example, a spatial filter.
  • the beam pairing relationship that is, the pairing relationship between the transmitting beam and the receiving beam, that is, the pairing relationship between the spatial transmitting filter and the spatial receiving filter. Transmitting a signal between a transmitting beam and a receiving beam having a beam pairing relationship can obtain a large beamforming gain.
  • the transmitting end may send the reference signal in a beam scanning manner, and the receiving end may also receive the reference signal in a beam scanning manner.
  • the transmitting end may form beams with different directivity in space by means of beamforming, and may poll on multiple beams with different directivity, so as to transmit the reference signal through beams with different directivity, so The power of the reference signal to transmit the reference signal in the direction pointed by the transmission beam can reach the maximum.
  • the receiving end can also form beams with different directivity in the space by means of beamforming, and can poll on multiple beams with different directivity to receive reference signals through the beams with different directivity, so that the receiving end receives The power of the reference signal can be maximized in the direction pointed by the receiving beam.
  • the receiving end can perform channel measurement based on the received reference signal and report the measurement result to the transmitting end. For example, the receiving end may report a portion of the reference signal receiving power (reference signal receiving power (RSRP)) of the larger reference signal resource to the transmitting end, such as reporting the identifier of the reference signal resource, so that the transmitting end uses the channel when transmitting data or signaling Better quality beam pairing to send and receive signals.
  • RSRP reference signal receiving power
  • the reference signal may include, for example, a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), and the like for downlink channel measurement.
  • the configuration information of the reference signal resource can be used to configure the transmission properties of the reference signal, for example.
  • the reference signal resources in the embodiments of the present application may include CSI-RS resources (resources), SSB resources (SS / PBCH, Block Resources), etc.
  • the identifiers of the reference signal resources may include, for example, CSI-RS resource identifiers (CSI-RS resource identifier (CRI), SSB resource identifier (SSBRI), and SRS resource identifier (SRS resource identifier).
  • CRI CSI-RS resource identifier
  • SSBRI SSB resource identifier
  • SRS resource identifier SRS resource identifier
  • the network device may determine a configuration parameter for each downlink reference signal (or beam), and send a downlink reference signal based on the configuration parameter.
  • the configuration parameters of the downlink reference signal may include, but are not limited to, the following parameters:
  • the sending period of the downlink reference signal may refer to a length of a time interval between two consecutive transmissions of the same downlink reference signal.
  • each sending period may include a sending period and a non-sending period.
  • the network device may send a downlink reference signal during the sending period, and may not send a downlink reference signal during the non-sending period.
  • the transmission periods of different reference signals may be the same, and the start times of the transmission periods of different reference signals corresponding to the same period. Can be the same.
  • Parameter B Time domain position offset of the downlink reference signal
  • the time-domain position offset of the downlink reference signal may refer to an offset of a start time of a sending period of the downlink reference signal with respect to a preset reference time.
  • the time-domain position offset of the downlink reference signal may indicate a start time unit (for example, a start subframe) of a transmission period of the downlink reference signal.
  • the time domain position offset of the downlink reference signal may refer to the start time of the first sending period of the downlink reference signal relative to the The offset of the start time of the system cycle in which the start time is located. That is, the preset reference time may refer to a start time of a system cycle in which a first transmission period of a downlink reference signal is located.
  • the time-domain position offset of the downlink reference signal may refer to an offset of a transmission period in each period of the downlink reference signal with respect to a start time of the transmission period.
  • the time domain position offset of the downlink reference signal may refer to a sequence number of a time unit corresponding to a transmission period in each period of the downlink reference signal in multiple time units included in the transmission period.
  • offsets of different reference signals may be different, so that the terminal device can receive different reference signals at different times ( Or, beam).
  • the method of the present application can be applied to a communication system capable of using a DRX mechanism.
  • DRX allows the UE to enter the sleep mode periodically at some times, not to monitor the PDCCH, and to wake up from sleep when it needs to monitor, so that the UE can achieve power saving. purpose.
  • FIG. 2 shows a typical DRX cycle.
  • one DRX cycle may include an on-duration period and a sleep period.
  • This wake-up period may also be referred to as an activation period.
  • the terminal device can communicate with the network device during the wake-up period.
  • the UE monitors a downlink PDCCH subframe. During this period, the UE is in an awake state.
  • the sleep period can also be referred to as the Opportunity Opportunity (DRX) period.
  • the terminal device may not perform data transmission during the sleep period.
  • the UE in the Opportunity for DRX period, the UE enters sleep without monitoring the time of the PDCCH subframe in order to save power.
  • the terminal device can receive downlink data and uplink authorization during the activation period.
  • the terminal device can perform a DRX cycle according to a paging cycle in the idle mode.
  • the terminal device may cooperate with multiple timers in a radio resource control (RRC) connection state to ensure the reception of downlink data and uplink authorization. Subsequently, the above timer will be described in detail.
  • RRC radio resource control
  • a large amount of data communication will inevitably cause a sharp increase in power consumption, resulting in insufficient battery supply or increased heat dissipation due to increased power consumption, which will cause system operation failure.
  • the use of the DRX function greatly reduces power consumption.
  • the DRX function control entity may be located at the MAC layer of the protocol stack. Its main function is to control the sending of instructions to the physical layer to notify the physical layer to monitor the PDCCH at a specific time, and the rest of the time will not turn on the receiving antenna and is in a sleep state.
  • the DRX cycle may include a short DRX cycle and a long DRX cycle.
  • one DRX cycle is equal to the sum of the on-duration period and the sleep time.
  • the communication system may configure the UE with a short DRX cycle (short DRX cycle) or a long DRX cycle (long DRX cycle) according to different service scenarios.
  • the voice codec when performing voice services, the voice codec usually sends a voice data packet every 20 milliseconds (ms). In this case, you can configure a short DRX cycle with a length of 20ms, and a longer silent period during a voice call. You can configure long DRX cycles.
  • the terminal device itself includes a short DRX cycle and a short DRX cycle timer, it runs according to the short DRX cycle, and will enter the long DRX cycle running state after the short DRX cycle timer expires.
  • a DRX start offset (drx start offset) parameter may be used to indicate a start time of a DRX cycle or a start time unit (for example, a start subframe).
  • the value range of drx start offset can be determined based on the size of the DRX cycle. For example, if the DRX cycle includes 10 subframes, the value range of drx start offset can be 0-9; if the DRX cycle includes 20 subframes, the value of drx start offset The value ranges from 0 to 19.
  • drxstartoffset 0 if the value of drxstartoffset is 0, it means that the starting subframe of the DRX cycle is the first subframe in the cycle; for example, if the value of drxstartoffset is 8, it means the starting subframe of the DRX cycle Is the ninth subframe in the period.
  • the start time (or start time unit) of the DRX cycle may be equal to or not equal to the start time (or start time unit) of the wake-up period of the DRX cycle.
  • timers used in the DRX mechanism are exemplarily described.
  • Duration timer On duration timer
  • the on-duration timer is used to determine the duration of the wake-up period. During the running of the on-duration timer or before the on-duration timer expires, the terminal is in the on-duration period, and the terminal device can turn on the receiving antenna to monitor the PDCCH.
  • the network side happens to have a larger byte of data to send to the UE, and these data cannot be completely transmitted in the subframe No. 0.
  • the UE will enter the DRX sleep state in subframe 1 and will no longer monitor the PDCCH and cannot receive any downlink PDSCH data from the network side.
  • the network side can only wait until the end of the DRX cycle, and when the next on-duration period arrives, it continues to send the untransmitted data to the terminal device. Although there is nothing wrong with this type of processing mechanism, it obviously increases the processing delay of all services.
  • drx-inactivity timer is added to the DRX mechanism. If the drx-inactivity timer is running, even if the originally configured ontime timer expires (ie, the onduration period ends), the UE still needs to continue to monitor the downlink PDCCH subframe until the drx-inactivity timer expires. After the DRX-Inactivity mechanism is added, the processing delay of data is obviously reduced.
  • DRX Retransmission Timer the minimum number of subframes that the UE needs to wait before receiving the expected downlink retransmission data.
  • HARQ RTT Timer the value of HARQ RTT Timer is fixed equal to 8 subframes.
  • HARQ RTT Timer is equal to (k + 4) subframes, where k represents the delay of the downlink channel transmission and its response to the feedback information.
  • DRXRetransmissionTimer refers to the length of time that the UE monitors the PDCCH after HARQ, RTT, and Timer expire.
  • the wake-up period may include a period corresponding to at least one of the on-duration timer, drx-inactivity timer, and DRXRetransmission Timer.
  • timers listed above are only exemplary descriptions, and the present application is not limited thereto.
  • the monitoring function of the PDCCH can adopt the DRX method, thereby reducing power consumption.
  • the DRX working mechanism in the idle mode is fixed, adopts a fixed cycle, and starts monitoring when the paging moment (PO) arrives.
  • the function of the PDCCH enters the activation period in the idle mode. During the activation period, the PDCCH needs to be fully monitored, and it goes to sleep again after the DRX activation period elapses.
  • the paging frame (PF) indicates a radio frame containing one or more POs. If DRX is used, the terminal device only monitors the PO for each DRX cycle. After the terminal device is powered on, the cycle will be performed according to the default DRX cycle (Cycle) configuration. Receive the PDCCH when the paging moment comes.
  • the combination of timer and DRX is used, and the network device will maintain the same DRX operation mode as the terminal device, and know in real time whether the terminal device is in the active or sleeping period, so it is guaranteed that Data is passed during the active period, but not transmitted during the sleep period.
  • a terminal device may immediately start a DRX inactivity timer after acquiring uplink data, and enter a short DRX cycle timer operation phase after the DRX inactivity timer expires.
  • the short DRX cycle timer runs, when the subframe number meets a preset condition, it enters the on-duration Timer running phase and starts monitoring the PDCCH.
  • the preset condition may include, but is not limited to:
  • SFN indicates the system frame number
  • drx start offset indicates the offset of the activation period (or wake-up period), which is used to indicate the number of time units (for example, subframes) in a DRX cycle. To enter the activation period.
  • Conditions for entering the OndurationTimer activation period when running with a long DRX cycle may include, but are not limited to:
  • SR scheduling request
  • the PDCCH needs to be monitored in order to obtain an uplink grant for transmitting uplink data.
  • DRX will be notified to run in accordance with a fixed DRX process and enter the drx-inactivity timer running phase.
  • the HARQ RTT timer of the corresponding HARQ process is started.
  • the DRX retransmission timer needs to be enabled to monitor the PDCCH after HARQ RTRT times out .
  • it is necessary to determine whether it is new data After determining that the data is new and the detected MAC PDU does not contain the DRX command control element, immediately start the DRX inactivity timer. This timer belongs to the global timing. During the running of this timer, it will continuously monitor the downlink subframes.
  • the uplink feedback After sending the uplink data, the uplink feedback will be received according to the fixed k-value relationship.
  • various timers are configured by the RRC layer. After initiating RRC connection establishment or re-establishment, various parameters required by the MAC layer will be configured through the MAC-MainConfig cell, and then immediately Enter the short DRX cycle or long DRX cycle operation phase.
  • the configuration parameters of the DRX mode may include, but are not limited to, the following parameters:
  • the period of DRX may refer to the length of the DRX cycle, for example, the length of the short DRX cycle described above, or it may also refer to the length of the long DRX cycle described above.
  • Parameter b Time domain position offset of the wake-up period of the DRX mode
  • the start time of a wake-up period may coincide with the start time of the DRX cycle in which the wake-up period is located.
  • the time domain position offset of the wake-up period in the DRX mode It may refer to an offset of a start time of the DRX cycle from a preset reference time.
  • the time-domain position offset of the wake-up period of the DRX mode may indicate a start time unit (eg, a start subframe) of the DRX cycle.
  • the time domain position offset of the wake-up period of the DRX mode may refer to the start time of the first wake-up period of the DRX mode with respect to The offset of the start time of the system cycle in which the start time is located. That is, the preset reference time may refer to a start time of a system cycle in which a first wake-up period of the DRX mode is located.
  • the time domain position offset of the wake-up period of the DRX mode may be the offset indicated by the drx start offset parameter.
  • the wake-up period may be a period measured by the on-duration Timer described above.
  • the start time of a wake-up period may not coincide with the start time of the DRX cycle in which the wake-up period is located.
  • the time domain position offset of the wake-up period in the DRX mode may be Refers to the offset of the wake-up period from the start of the DRX cycle.
  • the time domain position offset of the wake-up period of the DRX mode may indicate the offset of the wake-up period within the DRX cycle.
  • the wake-up period may include a period corresponding to any one of an on-duration timer, a drx-inactivity timer, or a HARQ RTT timer.
  • the method 100 for transmitting a downlink reference signal according to the present application is described in detail below with reference to FIGS. 3 to 6.
  • the downlink reference signal may be used in a beam detection (or, channel measurement) process.
  • FIG. 3 shows a schematic flow of an example of a method 200 for transmitting a downlink reference signal by the network device #A (that is, an example of a network device) and the terminal device #A (that is, an example of a terminal device).
  • the network device #A may configure related parameters of the DRX mode for the terminal device #A.
  • the network device #A may determine the drx-cycle parameter of the DRX mode of the terminal device #A, that is, the network device #A may determine the DRX cycle of the terminal device #A. For ease of understanding, this period is referred to as: cycle #A .
  • the network device #A may determine the drx start offset parameter of the DRX mode of the terminal device #A, that is, the network device #A may determine the offset corresponding to the start time unit of the DRX cycle of the terminal device #A, or , The network device #A may determine an offset corresponding to a start time unit of the wake-up period of the terminal device #A.
  • this offset is referred to as an offset #A.
  • the network device #A may determine related parameters of the X reference signals.
  • the X reference signals may correspond to the X beams used by the network device #A one by one, and X is an integer greater than or equal to 2.
  • a correlation parameter of at least one of the X reference signals has a correlation with a correlation parameter of a DRX mode of the terminal device #A.
  • the reference signal #A in the at least one reference signal is used as an example to describe the determination process of the related parameters of the at least one reference signal in detail.
  • the related parameters of the reference signal #A may include a period of the reference signal #A.
  • this period is referred to as: period #B.
  • the network device #A may determine the period #B based on the above period #A so that the relationship between the period #A and the period #B satisfies at least one of the following conditions.
  • the period #B is an integer multiple of the period #A.
  • CSI-RS-cycle-in-DRX P ⁇ DRX-cycle, where P is a positive integer.
  • CSI-RS-cycle-in-DRX represents cycle #B, that is, the transmission cycle of reference signal #A.
  • DRX-cycle represents cycle #A, that is, the DRX cycle of terminal device #A.
  • each transmission period of the reference signal #A can fall within the DRX cycle of the terminal device #A.
  • Cycle #A is an integer multiple of cycle #B.
  • DRX-cycle Q ⁇ CSI-RS-cycle-in-DRX, where Q is a positive integer.
  • At least one transmission period of the reference signal #A can exist in each DRX cycle of the terminal device #A.
  • the units (or granularity) of the period #A and the period #B may be the same, and the units of the period #A and the period #B may be time units (for example, subframes Or time slot).
  • the related parameters of the reference signal #A may include an offset (or time domain position offset) of the reference signal #A.
  • this offset is written as: offset #B.
  • the network device #A may determine the offset #B based on the above-mentioned offset #A so that the relationship between the offset #A and the offset #B satisfies the following conditions.
  • the offset #B is greater than or equal to the offset #A.
  • the start time determined based on the offset #B is not earlier than the start time determined based on the offset #A.
  • offset #A can be expressed as drx-StartOffset or drx-SlotOffset.
  • CSI-RS-offset-in-DRX drx-StartOffset + n
  • CSI-RS-offset-in-DRX drx-SlotOffset
  • CSI-RS-offset-in-DRX indicates an offset #B, that is, an offset of a transmission period of the reference signal #A.
  • DRX-cycle represents the offset of the DRX cycle of the cycle #B, that is, the terminal device #A.
  • drx-StartOffset indicates the offset of the DRX cycle.
  • drx-SlotOffset represents an offset of a wake-up period (for example, at least one of the on-duration timer, drx-inactivity timer, and HARQ RTT timer corresponding to the period during which the timer runs).
  • the unit (or granularity) of n may be the same as the unit of offset #B (or offset #A), for example, it may be a subframe.
  • the unit (or granularity) of n may be different from the unit of offset #B (or offset #A).
  • the unit of offset #B (or offset #A) may be different.
  • Is a subframe, and the unit of n may be a time slot or a symbol.
  • the duration corresponding to n may be shorter than the duration of an on-duration period in the DRX cycle of terminal device #A.
  • the difference between the offset #B and the offset #A may be smaller than the duration of the wake-up period in the DRX cycle of the terminal device #A.
  • the transmission time of the reference signal #A can be reliably entered into the wake-up period in the DRX cycle of the terminal device #A.
  • FIG. 4 shows an example of the relationship between the configuration of the reference signal #A determined based on the above method and the configuration of the DRX of the terminal device #A when P (or Q) is 1. That is, in this application, the period of the reference signal #A may be the same as the period of the DRX of the terminal device #A, and the offset #B and the offset #A satisfy the above condition 3, so that the reference signal can be made
  • Each transmission cycle of #A corresponds to a DRX cycle, and the sending time of the reference signal #A can be included in the wake-up period of the DRX cycle, thereby ensuring that the terminal device #A can wake up every time it wakes up.
  • the reference signal #A is received, it can be ensured that each reference signal #A sent by the network device #A is received by the terminal device #A.
  • the network device #A may also first determine the relevant parameters of the reference signal #A and based on The relevant parameters of the reference signal #A determine the relevant parameters of the DRX cycle of the terminal device #A, as long as it can ensure that the relationship between the cycle #A and the cycle #B satisfies condition # 1 or condition # 2, and / or can ensure the offset # The relationship between A and offset #B satisfies condition # 3.
  • one or more reference signals that are not related to the configuration of the DRX may also exist in the multiple reference signals, that is, the configuration parameters of the partial reference signals may be determined based on the existing technology.
  • the period of the partial reference signal used by the network device #A may be independent of the period of the DRX, or the offset of the partial reference signal used by the network device #A may be independent of the offset of the DRX, that is, The sending period of this part of the reference signal may not fall within the wake-up period of the DRX.
  • related parameters of another part of the reference signal (for example, the reference signal #A) used by the network device #A may be determined based on the foregoing manner so as to have correlation with the configuration of the DRX.
  • the network device #A may send related parameters of the reference signal #A to the terminal device #A.
  • the network device #A may send the reference signal #A based on the relevant parameters of the reference signal #A, and the terminal device #A may enter the DRX mode based on the configuration parameters of the DRX, and receive the reference signal # based on the relevant parameters of the reference signal #A.
  • the terminal device #A may also perform beam detection or channel measurement based on the reference signal #A. This process may be similar to the prior art. Here, in order to avoid redundant description, detailed description is omitted.
  • the terminal device #A may send a result (for example, beam restoration request information or channel quality information) obtained by the foregoing processing to the network device #A.
  • a result for example, beam restoration request information or channel quality information
  • the sending process may be similar to the prior art, or the process may be similar to the process described in the method 300 or the method 400 described later.
  • the possibility of the terminal device completing beam training and channel quality measurement during the wake-up period can be improved, that is, the terminal device can be improved during the wake-up period
  • the possibility of obtaining information on the available beams can improve the reliability of communication and improve the user experience.
  • FIG. 7 illustrates a method 300 for transmitting an uplink channel between a network device #B (that is, an example of a network device) and a terminal device #B (that is, an example of a terminal device).
  • the uplink channel may be used to carry measurement results or detection results obtained based on a downlink reference signal, such as beam recovery request information or channel quality information. That is, the method 300 may be used in a transmission process of channel quality information and the like determined based on the above-mentioned downlink reference signal #A, for example.
  • the network device #A and the network device #B may be the same device, and the terminal device #A and the terminal device #B may be the same terminal device.
  • the uplink channel may also be used to transmit an uplink reference signal, for example, a sounding reference signal (SRS) for uplink channel measurement.
  • an uplink reference signal for example, a sounding reference signal (SRS) for uplink channel measurement.
  • SRS sounding reference signal
  • a repeat transmission mechanism can be used to transmit the uplink channel, that is, the network device can indicate the number of repetitions to the terminal device, so that the terminal device sends the uplink channel based on the repetition number For example, if the number of repetitions is U, the terminal device may send the uplink channel U times, where U is an integer greater than or equal to 2.
  • the non-repeating transmission mechanism can also be used to transmit the uplink channel.
  • the terminal device sends the uplink channel only once.
  • the communication system may configure an independent set of repetition times for the DRX mode (for ease of understanding, it is referred to as the set of repetition times # 1), where the set of repetition times # 1 includes at least one number of repetitions.
  • the number of repetitions refers to the number of times the terminal device repeatedly transmits the uplink channel.
  • the repetition set # 1 may be ⁇ 1, 2, 4, 8 ⁇ .
  • the number of repetitions of the repetition number set # 1 is the number of repetitions used by the terminal device during a period in the DRX mode.
  • the repetition number set # 1 is only used in the DRX mode, that is, the network device and the terminal device use the repetition number set # 1 only in the DRX mode.
  • Network equipment and terminal equipment do not use repetition set # 1 in non-DRX mode. That is, the use of the repetition number set # 1 can be limited by the DRX mode, or in other words, it is necessary to determine that the DRX mode is currently used before using the repetition number set # 1.
  • the communication system may further configure a repetition number set # 2, which can be used in a non-DRX mode (for example, for transmitting an uplink channel), and the repetition number set # 2 is also Can be used in DRX mode.
  • the repetition number set # 2 includes at least one repetition number.
  • the repetition number set # 2 may be a repetition number set dedicated to the non-DRX mode.
  • the repetition number set # 2 may be a repetition number set for both the non-DRX mode and the DRX mode. That is, the use of the repetition number set # 2 may not be restricted by the non-DRX mode and the DRX mode, or it is unnecessary to pay attention to whether the non-DRX mode or the DRX mode is currently used before using the repetition number set # 2.
  • the maximum number of repetitions in the set of repetition times set # 2 is the number of repetitions #b
  • the maximum number of repetitions in the set of repetition times set # 1 is the number of repetitions #a.
  • the number of repetitions # a is greater than or equal to the number of repetitions #b.
  • a non-repeated transmission mechanism may also be used for transmission of the uplink channel.
  • the network device #B may determine a target repetition number for the terminal device #B from the repetition number set # 1.
  • the network device #B may determine the target repetition number based on the service type or importance of the service accessed by the terminal device #B.
  • the network device #B may determine the larger number of repetitions in the repetition number set # 1 as the target number of repetitions.
  • the network device #B may determine the smaller repetition number in the repetition number set # 1 as the target repetition. frequency.
  • the network device #B may send the indication information of the target repetition number to the terminal device #B.
  • each repetition number in the repetition number set # 1 may uniquely correspond to an index value
  • the indication information of the target repetition number may be an index value corresponding to the target repetition number
  • the terminal device #B may transmit an uplink channel based on the target repetition number while it is in the DRX mode.
  • the beam used by the terminal device may be changed due to the movement of the terminal device.
  • the terminal device cannot reliably complete the transmission of the uplink channel because it cannot obtain information about the beam.
  • the repeated transmission in the DRX mode is not limited to the non-DRX mode, and thus can be used in In DRX mode, a large number of repetitions is used to increase the probability of successful transmission of the uplink channel.
  • non-DRX mode it can avoid wasting resources due to excessive repeated transmissions.
  • the network device #B may further send information of the uplink beam, and the information of the uplink beam may be used to indicate related parameters of the uplink beam.
  • the relevant parameters of the uplink beam may include spatial filters or spatial parameters.
  • the spatial filter may be at least one of the following: precoding, the weight of the antenna port, the phase deflection of the antenna port, and the amplitude gain of the antenna port.
  • the related parameters of the uplink beam may include configuration parameters of a reference signal, such as configuration information of a channel state information reference signal used for downlink channel measurement.
  • the terminal device #B After receiving the information of the uplink beam, the terminal device #B can determine the uplink beam information required for uplink channel transmission based on the information of the uplink beam, thereby improving the performance of transmitting the uplink channel.
  • the terminal device #B may be based on The number of target repetitions indicated by the network device #B sends the uplink channel.
  • the terminal device #B may be based on the number of repetitions.
  • the number of repetitions specified in the set # 2 may be indicated by the network device #B), and the uplink channel is transmitted.
  • the terminal device #B may adopt Non-repeating sending mechanism, sending uplink channel.
  • the terminal device #B may send confirmation information to the network device #B.
  • the network device #B may consider that the terminal device #B fails to determine an available beam for transmitting an uplink channel based on the uplink beam information, and the network Device #B can receive the uplink channel based on the target repetition number.
  • the network device #B can consider that the terminal device #B can determine the available beam for transmitting the uplink channel based on the uplink beam information, and the network device #B can The uplink channel is received based on the number of repetitions specified in the repetition number set # 2 (for example, it may be indicated by the network device #B).
  • the network device #B can consider that the terminal device #B can determine the beams that can be used to send the uplink channel based on the uplink beam information, and the network device # B can use a non-repeating transmission mechanism to receive the uplink channel.
  • the network device may also use the information of the downlink beam as the information of the uplink beam.
  • FIG. 8 shows an example of an uplink channel configuration determined based on the scheme of the present application.
  • the terminal device #B may send an uplink channel based on the number of repetitions #A.
  • the number of repetitions #A is the number of repetitions indicated by the network device in the above-mentioned number of repetitions set # 1.
  • the number of repetitions #A may be 4 in the configuration shown in FIG. 8.
  • the terminal device #B is in the DRX mode and the information of the uplink beam is obtained.
  • the terminal device #B may send an uplink channel based on the repetition number #B.
  • the number of repetitions #B is the number of repetitions indicated by the network device in the above-mentioned number of repetitions set # 2.
  • the number of repetitions #B may be two.
  • FIG. 9 shows a method 400 for transmitting an uplink channel between a network device #C (that is, an example of a network device) and a terminal device #C (that is, an example of a terminal device).
  • the uplink channel may be used to carry measurement results or detection results obtained based on a downlink reference signal, such as beam recovery request information or channel quality information. That is, the method 400 may be used in a transmission process of channel quality information and the like determined based on the above-mentioned downlink reference signal #A, for example.
  • the network device #C and the network device #B may be the same device, and the terminal device #C and the terminal device #B may be the same terminal device.
  • the uplink channel can also be used to transmit an uplink reference signal, for example, an SRS used for uplink channel measurement.
  • an uplink reference signal for example, an SRS used for uplink channel measurement.
  • the network device #C may configure related parameters of the DRX mode for the terminal device #C.
  • the network device #C may determine the drx-cycle parameter of the DRX mode of the terminal device #C, that is, the network device #C may determine the DRX cycle of the terminal device #C. For ease of understanding, this period is referred to as: cycle # 1 .
  • the network device #C can determine the drx start offset parameter of the DRX mode of the terminal device #C, that is, the network device #C can determine the offset corresponding to the start time unit of the DRX cycle of the terminal device #C, or , The network device #C may determine an offset corresponding to a start time unit of the wake-up period of the terminal device #C.
  • this offset is referred to as: offset # 1.
  • the network device #C may determine relevant parameters of the Y uplink channels (for example, uplink reference signals).
  • the Y uplink channels may correspond to the Y beams used by the network device #C one by one, and Y is an integer greater than or equal to 2.
  • the related parameters of at least one of the Y uplink channels are related to the related parameters of the DRX mode of terminal device #C.
  • the determination process of the related parameters of the at least one uplink channel is described in detail by using the uplink channel # 1 in the at least one uplink channel as an example.
  • related parameters of the uplink channel # 1 may include a period of the uplink channel # 1.
  • this cycle is referred to as: Cycle # 2.
  • the network device #C may determine the period # 2 based on the above period # 1 so that the relationship between the period # 1 and the period # 2 satisfies at least one of the following conditions.
  • Cycle # 2 is an integer multiple of cycle # 1.
  • CSI-report-cycle-in-DRX P ⁇ DRX-cycle, where P is a positive integer.
  • CSI-report-cycle-in-DRX represents cycle # 2, that is, the transmission cycle of uplink channel # 1.
  • DRX-cycle represents cycle # 1, that is, the DRX cycle of terminal device #C.
  • each transmission period of the uplink channel # 1 can fall within the DRX cycle of the terminal device #C.
  • Cycle # 1 is an integer multiple of cycle # 2.
  • DRX-cycle Q ⁇ CSI-report-cycle-in-DRX, where Q is a positive integer.
  • At least one transmission period of the uplink channel # 1 can exist in each DRX period of the terminal device #C.
  • the units (or granularity) of the cycle # 1 and the cycle # 2 may be the same, and the units of the cycle # 1 and the cycle # 2 may be time units (for example, a subframe Or time slot).
  • the related parameters of the uplink channel # 1 may include an offset (or a time domain position offset) of the uplink channel # 1.
  • this offset is written as: offset # 2.
  • the network device #C may determine the offset # 2 based on the above-mentioned offset # 1 so that the relationship between the offset # 1 and the offset # 2 satisfies the following conditions.
  • the offset # 2 is greater than or equal to the offset # 1.
  • the start time determined based on the offset # 2 is not earlier than the start time determined based on the offset # 1.
  • offset # 1 can be expressed as drx-StartOffset or drx-SlotOffset
  • CSI-report-offset-in-DRX drx-StartOffset + n
  • CSI-report-offset-in-DRX drx-SlotOffset + n
  • CSI-report-offset-in-DRX represents an offset # 2, that is, an offset of a transmission period of the uplink channel # 1.
  • DRX-cycle represents a period # 2, that is, an offset of a DRX cycle of the terminal device #C.
  • the unit (or granularity) of n may be the same as the unit of offset # 2 (or offset # 1), for example, it may be a subframe.
  • the unit (or granularity) of n may be different from the unit of offset # 2 (or offset # 1), for example, the unit of offset # 2 (or offset # 1) may be different Is a subframe, and the unit of n may be a time slot or a symbol.
  • the duration corresponding to n may be shorter than the duration of an on-duration period in the DRX cycle of terminal device #C.
  • the difference between the offset # 2 and the offset # 1 may be smaller than the duration of the wake-up period in the DRX cycle of the terminal device #C.
  • the transmission time of the uplink channel # 1 can be reliably included in the wake-up period in the DRX cycle of the terminal device #C.
  • FIG. 10 shows an example of the relationship between the configuration of the uplink channel # 1 and the DRX configuration of the terminal device #C determined based on the above method when P (or Q) is 1. That is, in this application, the period of the uplink channel # 1 may be the same as the period of the DRX of the terminal device #C, and the offset # 2 and the offset # 1 satisfy the above condition 3, so that the uplink channel can be made.
  • Each transmission cycle of # 1 corresponds to a DRX cycle, and the uplink channel # 1 can be sent into the wake-up period of the DRX cycle, thereby ensuring that the terminal device #C can wake up every time it wakes up.
  • the uplink channel # 1 is received, that is, it can be ensured that each uplink channel # 1 sent by the network device #C is received by the terminal device #C.
  • the network device #C may first determine the relevant parameters of the uplink channel # 1, and based on The related parameters of the uplink channel # 1 determine the related parameters of the DRX cycle of the terminal device #C, as long as the relationship between the cycle # 1 and the cycle # 2 can satisfy the condition # 1 or the condition # 2, and / or the offset # can be ensured.
  • the relationship between 1 and the offset # 2 may satisfy the condition # 3.
  • one or more reference signals that are not related to the configuration of the DRX may also exist in the multiple reference signals, that is, the configuration parameters of the partial reference signals may be determined based on the existing technology.
  • the period of the partial reference signal used by the network device #C may be independent of the period of the DRX, or the offset of the partial reference signal used by the network device #C may be independent of the offset of the DRX, that is, The sending period of this part of the reference signal may not fall within the wake-up period of the DRX.
  • related parameters of another part of the reference signal for example, the uplink channel # 1) used by the network device #C may be determined based on the foregoing manner so as to have correlation with the configuration of the DRX.
  • the network device #C may send the related parameters of the uplink channel # 1 to the terminal device #C.
  • the network device #C can receive the uplink channel # 1 based on the relevant parameters of the uplink channel # 1, and the terminal device #C can enter the DRX mode based on the DRX configuration parameters and send the uplink channel # 1 based on the relevant parameters of the uplink channel # 1. .
  • the possibility of the terminal device completing beam training and channel quality measurement during wake-up can be improved That is, it is possible to increase the possibility that the terminal device obtains information of the usable beams during the wake-up period, thereby improving the reliability of communication and improving the user experience.
  • the configuration parameters of the uplink channel for example, the uplink reference signal or the channel quality information report
  • FIG. 13 is a schematic diagram of a communication device 10 according to an embodiment of the present application.
  • the device 10 may be a terminal device, or a chip or a circuit, such as a chip or a circuit that may be provided in the terminal device. .
  • the apparatus 10 for detecting a beam may include a processing unit 11 (that is, an example of a processing unit) and a storage unit 12.
  • the storage unit 12 is configured to store instructions
  • the processing unit 11 is configured to execute the instructions stored by the storage unit 12 so that the apparatus 10 for beam detection implements a terminal device (for example, the above-mentioned terminal device #A, the above-mentioned terminal) in the foregoing method. Steps performed by device #B or the above-mentioned terminal device #C).
  • the device 10 may further include an input port 13 (that is, an example of a communication unit) and an output port 14 (that is, another example of a communication unit).
  • the processing unit 11, the storage unit 12, the input port 13 and the output port 14 can communicate with each other through an internal connection path to transfer control and / or data signals.
  • the storage unit 12 is used to store a computer program, and the processing unit 11 may be used to call and run the computer program from the storage unit 12 to control the input port 13 to receive signals and control the output port 14 to send signals to complete the above method. Steps for the terminal device.
  • the storage unit 12 may be integrated in the processing unit 11, or may be provided separately from the processing unit 11.
  • the input port 13 is a receiver
  • the output port 14 is a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the input port 13 is an input interface
  • the output port 14 is an output interface
  • the functions of the input port 13 and the output port 14 may be considered to be implemented through a transceiver circuit or a dedicated chip for transceiver.
  • the processing unit 11 may be implemented by a dedicated processing chip, a processing circuit, a processing unit, or a general-purpose chip.
  • a manner of using a general-purpose computer may be considered to implement the terminal device provided in the embodiment of the present application.
  • the program code that is to implement the functions of the processing unit 11, the input port 13, and the output port 14 is stored in the storage unit 12.
  • the general processing unit implements the functions of the processing unit 11, input port 13, and output port 14 by executing the codes in the storage unit 12. .
  • the input port 13 is configured to receive configuration information from a network device, and the configuration information is used to indicate a configuration parameter of a reference signal, wherein the configuration parameter of the reference signal is based on a discontinuous reception DRX mode of the terminal device. Or the configuration parameters of the DRX mode are determined according to the configuration parameters of the reference signal; the input port 13 may receive a reference from the network device under the control of the processing unit 11 according to the configuration parameters of the reference signal signal.
  • the configuration parameter of the reference signal includes a transmission period T1 of the reference signal
  • the configuration parameter of the DRX mode includes a period T2 of DRX
  • T1 P ⁇ T2, where P is a positive integer, or
  • T2 Q ⁇ T1, where Q is a positive integer.
  • the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal
  • the configuration parameter of the DRX mode includes a time domain position offset S2 of a wake-up period of the DRX mode, where S1 is greater than or Equal to S2.
  • the difference between S1 and S2 is less than or equal to the length of the wake-up period of the DRX mode.
  • the input port 13 is configured to receive indication information of a first number of repetitions from a network device.
  • the first number of repetitions belongs to a first number of repetitions set, and the first number of repetitions set includes at least one number of repetitions.
  • the first set of repetition times is dedicated to the discontinuous reception DRX mode; the output port 14 may send an uplink channel under the control of the processing unit 11 in the period of the DRX mode according to the first repetition times.
  • the maximum number of repetitions in the first set of repetitions is greater than or equal to the maximum number of repetitions in the second set of repetitions
  • the second set of repetitions includes at least one number of repetitions
  • the second set of repetitions is used for non- DRX mode
  • the uplink channel is transmitted in a non-repeated transmission manner.
  • the output port 14 may send the uplink channel according to the first repetition number before the input port 13 receives the beam indication information of the uplink channel under the control of the processing unit 11 during the period in the DRX mode. .
  • the output port 14 may send a confirmation to the network device after the terminal device is in the DRX mode under the control of the processing unit 11 and after the input port 13 receives the beam indication information of the uplink channel.
  • Information, the confirmation information is used to indicate that the terminal device receives beam indication information of the uplink channel;
  • the output port 14 may send an uplink channel according to a second repetition number under the control of the processing unit 11.
  • the second repetition number belongs to a second repetition number set, and the second repetition number set includes at least one repetition number.
  • the set of repetitions is dedicated to non-DRX mode; or
  • the output port 14 may send an uplink channel in a non-repeated transmission manner under the control of the processing unit 11.
  • the input port 13 is used to receive configuration information from a network device, and the configuration information is used to indicate a configuration parameter of an uplink channel, where the configuration parameter of the uplink channel is based on discontinuous reception of DRX by the terminal device.
  • the configuration parameters of the mode are determined, or the configuration parameters of the DRX mode are determined according to the configuration parameters of the uplink channel; the output port 14 may be sent to the network device under the control of the processing unit 11 according to the configuration parameters of the uplink channel. Upstream channel.
  • the configuration parameter of the uplink channel includes a transmission period T1 of the uplink channel
  • the configuration parameter of the DRX mode includes a period T2 of DRX
  • T1 P ⁇ T2, where P is a positive integer, or
  • T2 Q ⁇ T1, where Q is a positive integer.
  • the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel
  • the configuration parameter of the DRX mode includes a time domain position offset S2 of a wake-up period of the DRX mode, where S1 is greater than or Equal to S2.
  • the difference between S1 and S2 is less than the length of the wake-up period of the DRX mode.
  • each module or unit in the device 10 listed above are only exemplary descriptions, and each module or unit in the device 10 may be used to perform each action or process performed by the terminal device in the foregoing method.
  • each module or unit in the device 10 may be used to perform each action or process performed by the terminal device in the foregoing method.
  • the terminal device in the foregoing method.
  • FIG. 14 is a schematic structural diagram of a terminal device 20 provided in this application.
  • the above device 20 may be configured in the terminal device 20, or the device 20 itself may be the terminal device 20.
  • the terminal device 20 may perform the actions performed by the terminal device in the foregoing method 200, 300, or 400.
  • FIG. 14 shows only the main components of the terminal device.
  • the terminal device 20 includes a processor, a memory, a control circuit, an antenna, and an input / output device.
  • the processor is mainly used to process the communication protocol and communication data, and control the entire terminal device, execute a software program, and process the data of the software program.
  • the processor is used to support the terminal device to execute the foregoing method for transmitting a precoding matrix.
  • the memory is mainly used to store software programs and data, such as the codebook described in the foregoing embodiment.
  • the control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input / output devices such as a touch screen, a display screen, and a keyboard, are mainly used to receive data input by the user and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. After the radio frequency circuit processes the baseband signal, the radio frequency signal is sent out in the form of electromagnetic waves through the antenna.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data.
  • FIG. 14 shows only one memory and a processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processor.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processor is mainly used to control the entire terminal device, execute software programs, and process software programs. data.
  • the processor in FIG. 14 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, which are interconnected through technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit may also be expressed as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data may be built in the processor or stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit having a transmitting and receiving function may be regarded as the transmitting and receiving unit 201 of the terminal device 20, and the processor having the processing function may be regarded as the processing unit 202 of the terminal device 20.
  • the terminal device 20 includes a transceiver unit 201 and a processing unit 202.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like.
  • a device for implementing a receiving function in the transceiver unit 201 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver unit 201 may be regarded as a transmitting unit, that is, the transceiver unit 201 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit.
  • FIG. 15 is a schematic diagram of a communication apparatus 30 according to an embodiment of the present application.
  • the apparatus 30 may be a network device (for example, network device #A, network device #B, or network device #C) It can also be a chip or circuit, such as a chip or circuit that can be set in a network device.
  • the device 30 may include a processing unit 31 and a storage unit 32.
  • the storage unit 32 is configured to store instructions
  • the processing unit 31 is configured to execute the instructions stored by the storage unit 32 to enable the apparatus 30 to implement the steps performed by the network device in the foregoing method.
  • the device 30 may further include an input port 33 (that is, an example of a communication unit) and an output port 33 (that is, another example of a processing unit).
  • an input port 33 that is, an example of a communication unit
  • an output port 33 that is, another example of a processing unit.
  • processing unit 31, the storage unit 32, the input port 33 and the output port 34 can communicate with each other through an internal connection path to transfer control and / or data signals.
  • a general-purpose computer to implement the network device provided in the embodiment of the present application.
  • the program code that is to implement the functions of the processing unit 31, the input port 33, and the output port 34 is stored in a storage unit, and the general-purpose processing unit implements the functions of the processing unit 31, input port 33, and output port 34 by executing the code in the storage unit.
  • the storage unit 32 is configured to store a computer program.
  • the processing unit 31 may be used to call and run the computing program from the storage unit 32 to control the output port 34 to send configuration information to the terminal device, where the configuration information is used to indicate the reference signal.
  • a configuration parameter wherein the configuration parameter of the reference signal is determined by the network device according to a configuration parameter of the discontinuous reception DRX mode of the terminal device, or the configuration parameter of the DRX mode is a configuration parameter of the network device according to the reference signal It is determined; and according to the configuration parameter of the reference signal, the output port 34 is controlled to send a reference signal to the terminal device.
  • the configuration parameter of the reference signal includes a transmission period T1 of the reference signal
  • the configuration parameter of the DRX mode includes a period T2 of DRX
  • T1 P ⁇ T2, where P is a positive integer, or
  • T2 Q ⁇ T1, where Q is a positive integer.
  • the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal
  • the configuration parameter of the DRX mode includes a time domain position offset S2 of a wake-up period of the DRX mode, where S1 is greater than or Equal to S2.
  • the difference between S1 and S2 is less than or equal to the length of the wake-up period of the DRX mode.
  • the processing unit 31 may be configured to call and run the calculation program from the storage unit 32 to control the output port 34 to send the instruction information of the first repetition times to the terminal device.
  • the number of repetitions belongs to a first number of repetitions set, the first number of repetitions set includes at least one number of repetitions, the first number of repetitions set is dedicated to a discontinuous reception DRX mode; and while the terminal device is in the DRX mode, The input port 33 is controlled to receive an uplink channel according to the first repetition number.
  • the maximum number of repetitions in the first set of repetitions is greater than or equal to the maximum number of repetitions in the second set of repetitions, the second set of repetitions includes at least one number of repetitions, and the second set of repetitions is used in a non-DRX mode;
  • the uplink channel is transmitted using non-repeated transmission.
  • the processing unit 31 is further configured to control the output port 34 to transmit the beam indication information of the uplink channel to the terminal device; and to control the input port 33 during the period when the terminal device is in the DRX mode, Before receiving the confirmation information sent by the terminal device, the uplink channel is received according to the first repetition number, and the confirmation information is used to indicate that the terminal device receives beam indication information of the uplink channel.
  • the processing unit 31 is further configured to control the output port 34 to transmit the beam indication information of the uplink channel to the terminal device; and to control the input port 33 during the period when the terminal device is in the DRX mode,
  • the uplink channel is received according to a second number of repetitions.
  • the second number of repetitions belongs to a second number of repetitions set.
  • the second number of repetitions set includes at least one number of repetitions.
  • the confirmation information is used to instruct the terminal device to receive beam indication information of the uplink channel.
  • the processing unit 31 is further configured to control the output port 34 to transmit the beam indication information of the uplink channel to the terminal device; and to control the input port 33 during the period when the terminal device is in the DRX mode, After receiving the confirmation information sent by the terminal device, the uplink channel is received in a non-repeated transmission manner, and the confirmation information is used to indicate that the terminal device receives beam indication information of the uplink channel.
  • the processing unit 31 may be configured to call and run the computing program from the storage unit 32 to control the output port 34 to send configuration information to the terminal device, where the configuration information is used to indicate an uplink channel.
  • the configuration parameters of the uplink channel are determined by the network device according to the configuration parameters of the discontinuous reception DRX mode of the terminal device, or the configuration parameters of the DRX mode are the network device according to the configuration of the uplink channel The parameters are determined; and according to the configuration parameters of the uplink channel, the input port 33 is controlled to receive the uplink channel from the terminal device.
  • the configuration parameter of the uplink channel includes a transmission period T1 of the uplink channel
  • the configuration parameter of the DRX mode includes a period T2 of DRX
  • T1 P ⁇ T2, where P is a positive integer, or
  • T2 Q ⁇ T1, where Q is a positive integer.
  • the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel
  • the configuration parameter of the DRX mode includes a time domain position offset S2 of a wake-up period of the DRX mode, where S1 is greater than or Equal to S2.
  • the difference between S1 and S2 is less than or equal to the length of the wake-up period of the DRX mode.
  • modules or units in the device 30 listed above are only exemplary descriptions, and the modules or units in the device 30 may be used to execute the network devices (for example, network device #A, network device #B) in the above method. Or each process or process performed by the network device #C).
  • network devices for example, network device #A, network device #B
  • network device #C each process or process performed by the network device #C.
  • detailed descriptions are omitted.
  • FIG. 16 is a schematic structural diagram of a network device 40 according to an embodiment of the present application, which may be used to implement functions of a network device (for example, an access network device #A or a core network device # ⁇ ) in the foregoing method.
  • the network device 40 includes one or more radio frequency units, such as a remote radio unit (RRU) 401 and one or more baseband units (BBU) (also referred to as a digital unit, DU). 402.
  • RRU 401 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and may include at least one antenna 4011 and a radio frequency unit 4012.
  • the RRU 401 part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending a signaling message described in the foregoing embodiment to a terminal device.
  • the BBU 402 part is mainly used for baseband processing and controlling base stations.
  • the RRU 401 and the BBU 402 may be physically located together or physically separated, that is, a distributed base station.
  • the BBU 402 is a control center of a base station, and may also be referred to as a processing unit, which is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, and so on.
  • the BBU (Processing Unit) 402 may be used to control the base station 40 to execute the operation procedure on the network device in the foregoing method embodiment.
  • the BBU 402 may be composed of one or more boards, and multiple boards may jointly support a single access system wireless access network (such as an LTE system or a 5G system), or may support different Access standard wireless access network.
  • the BBU 402 further includes a memory 4021 and a processor 4022.
  • the memory 4021 is used to store necessary instructions and data.
  • the memory 4021 stores the codebook and the like in the foregoing embodiment.
  • the processor 4022 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 4021 and the processor 4022 may serve one or more single boards. That is, the memory and processor can be set separately on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • SoC system-on-chip
  • all or part of the functions of part 402 and part 401 may be implemented by SoC technology, for example, a base station function chip
  • the base station function chip integrates a processor, a memory, an antenna interface and other devices.
  • a program of the base station related functions is stored in the memory, and the processor executes the program to realize the base station related functions.
  • the base station function chip can also read the external memory of the chip to realize the related functions of the base station.
  • FIG. 16 the structure of the network device illustrated in FIG. 16 is only one possible form, and should not be construed as any limitation in the embodiments of the present application. This application does not exclude the possibility of other forms of base station structures that may appear in the future.
  • the embodiment of the present application further provides a communication system, which includes the foregoing network device and one or more terminal devices.
  • the processor may be a central processing unit (CPU), and the processor may also be another general-purpose processor, digital signal processor (DSP), or special-purpose integration.
  • Circuit application specific integrated circuit, ASIC
  • ready-made programmable gate array field programmable gate array, FPGA
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrical memory Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access Access memory
  • double SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access Fetch memory
  • direct RAMbus RAM direct RAMbus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination.
  • the above embodiments 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 or computer programs.
  • the processes or functions according to the embodiments of the present application are wholly or partially generated.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (for example, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like, including one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit. If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

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Abstract

La présente invention concerne un procédé de réception d'un signal de référence, le procédé comprenant les étapes suivantes : la réception par un appareil terminal des informations de configuration à partir d'un appareil de réseau, les informations de configuration indiquant un paramètre de configuration d'un signal de référence, le paramètre de configuration du signal de référence étant déterminé en fonction d'un paramètre de configuration d'un mode de réception discontinue (DRX) de l'appareil terminal, ou le paramètre de configuration du mode DRX étant déterminé en fonction du paramètre de configuration du signal de référence ; et la réception par l'appareil terminal d'un signal de référence de l'appareil de réseau en fonction du paramètre de configuration du signal de référence. L'invention associe un paramètre de configuration d'un signal de référence et un paramètre de configuration d'un mode DRX, ce qui permet d'augmenter la probabilité qu'un appareil terminal achève un apprentissage de faisceau et une mesure de qualité de canal pendant une période de réveil, c'est-à-dire d'augmenter la probabilité que l'appareil terminal acquière des informations de faisceau disponibles pendant la période de réveil, améliorant ainsi la fiabilité de communication et l'expérience de l'utilisateur.
PCT/CN2019/099099 2018-08-06 2019-08-02 Procédé de réception d'un signal de référence et appareil de communication WO2020029890A1 (fr)

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