WO2020029890A1 - Method for receiving reference signal, and communication apparatus - Google Patents

Abstract

The present application provides a method for receiving a reference signal, the method comprising: a terminal apparatus receiving configuration information from a network apparatus, the configuration information indicating a configuration parameter of a reference signal, wherein the configuration parameter of the reference signal is determined according to a configuration parameter of a discontinuous reception (DRX) mode of the terminal apparatus, or the configuration parameter of the DRX mode is determined according to the configuration parameter of the reference signal; and the terminal apparatus receiving a reference signal from the network apparatus according to the configuration parameter of the reference signal. The invention associates a configuration parameter of a reference signal and a configuration parameter of a DRX mode, so as to increase the likelihood of a terminal apparatus completing beam training and a channel quality measurement during a wake-up period, that is, to increase the likelihood of the terminal apparatus acquiring available beam information during the wake-up period, thereby improving the reliability of communication, and enhancing the user experience.

Description

Method and communication device for receiving reference signal

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on August 6, 2018, with application number 201810885487.4, and with the application name "Method and Communication Device for Receiving Reference Signals", the entire contents of which are incorporated herein by reference. in.

Technical field

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.

Background technique

With the development of communication technology, spectrum resources have been difficult to meet the explosive growth of users' capacity requirements. High-frequency bands, especially millimeter-wave bands, with larger available bandwidth are increasingly becoming candidate bands for next-generation communication systems. However, 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.

In order to overcome the above-mentioned large propagation loss, 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.

When the signal is transmitted based on the beamforming technology, once the user moves, there may be a problem that 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. In order to track the change of the shaped beam during communication, 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.

In addition, in order to reduce the power consumption of the terminal device, 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. To monitor a subframe carrying a physical downlink control channel (PDCCH), and when monitoring is needed, wake up from a sleep state, so that the UE can achieve the purpose of power saving.

However, in the DRX mode, when a terminal device is in a sleep state, the shaped beam used by the terminal device may be changed due to movement and other reasons. For example, 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. During the period # 2 after the period # 1, the terminal device enters the sleep state, and during the period # 2, the terminal device moves and leaves the coverage of the beam # 1. In the period # 2, when 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.

Summary of the invention

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.

In a first aspect, a method for receiving a reference signal is provided, 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.

According to the solution of the present application, by associating the configuration parameters of the reference signal with the configuration parameters of the DRX mode, 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.

It should be noted that the above-mentioned "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.

Alternatively, "beam" can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.

Optionally, the configuration parameter of the reference signal includes a sending period T1 of the reference signal.

And, the configuration parameter of the DRX mode includes a period T2 of the DRX.

In this application, 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.

In addition, for example, the wake-up period may include a period during which a duration timer is running.

As another example, the wake-up period may include a period during which a DRX-inactivity timer (drx-inactivity timer) runs.

As another example, the wake-up period may include a period during which a retransmission timer (ReTransmission Timer) runs.

In addition, 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.

In the present application, for example, the transmission period T1 of the reference signal is an integer multiple of the period T2 of the DRX, that is, T1 = P × T2, where P is a positive integer.

Optionally, the value of P may be predefined by a communication system or a communication protocol.

Alternatively, the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that the transmission period of each reference signal is within the period of the DRX.

As another example, the period T2 of the DRX is an integer multiple of the transmission period T1 of the reference signal, that is, T2 = Q × T1, where Q is a positive integer.

Optionally, the value of P may be predefined by a communication system or a communication protocol.

Alternatively, the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that a reference signal transmission period exists in each DRX cycle.

In addition, it should be noted that, in this application, the start time of the first DRX cycle and the start time of the first reference signal transmission cycle may be the same.

Optionally, the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal.

It should be understood that 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.

In addition, 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.

Among them, S2 can be used to determine the start time of the DRX cycle.

Alternatively, S2 may be used to determine a start time of a wake-up period within a DRX cycle. In the present application, 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.

In other words, in the present application, 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.

In this application, the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.

For example, in this application, the system time domain range may be divided into multiple time units.

By way of example and not limitation, in this application, 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.

In this case, 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.

Alternatively, in the present application, 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. .

That is, let the start time of the transmission period # 1 of the reference signal be t # 1, and the start time of the transmission of the reference signal in the transmission period # 1 be t # 2, then the time domain position offset S1 of the reference signal It can be the difference between t # 2 and t # 1.

For another example, in this application, each reference signal transmission period may include multiple time units. In this case, 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.

That is, assuming that the reference signal corresponds to the k-th time unit of each transmission cycle in the time domain, the time domain position offset S1 of the reference signal may be k, where k is a positive integer or zero.

In addition, in this application, 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.

By way of example and not limitation, the unit of S1 in this application may be a slot.

In the present application, 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.

For example, in this application, the system time domain range may be divided into multiple time units.

In this case, 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.

In the present application, 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.

As another example, in this application, each DRX cycle may include multiple time units. In this case, 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.

That is, assuming that the wake-up period corresponds to the h-th time unit of each DRX cycle in the time domain, 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. .

It should be noted that, in this application, 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.

In addition, in the present application, 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.

By way of example and not limitation, for example, in this application, 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.

As another example, in the present application, 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.

By way of example and not limitation, for example, in the present application, 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.

In addition, by way of example and not limitation, 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.

Optionally, 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.

Specifically, it is assumed that the DRX cycle #a and the reference signal transmission cycle #b are within the same time range (or that the cycle #a and the cycle #a have overlapping portions).

For example, 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.

Alternatively, 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.

And, 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.

That is, the start time of the period #b falls within the wake-up period in the period #b.

Optionally, 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.

Optionally, 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.

That is, 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.

It should be understood that the relationship between S1 and S2 is 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.

That is, 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.

Therefore, it is possible to ensure that 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.

In addition, in this application, 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 . Here, K is an integer greater than or equal to two.

In addition, 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.

In a second aspect, a method for sending a reference signal is provided, 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

According to the solution of the present application, by associating the configuration parameters of the reference signal with the configuration parameters of the DRX mode, 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.

It should be noted that the above-mentioned "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.

Alternatively, "beam" can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.

Optionally, the configuration parameter of the reference signal includes a sending period T1 of the reference signal.

And, the configuration parameter of the DRX mode includes a period T2 of the DRX.

In this application, 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.

In addition, for example, the wake-up period may include a period in which the duration timer runs.

As another example, the wake-up period may include a period during which the DRX inactive timer runs.

As another example, the wake-up period may include a period during which the retransmission timer runs.

In addition, the sending period of the reference signal can also be understood as a time interval between sending periods of two adjacent reference signals.

In the present application, for example, the transmission period T1 of the reference signal is an integer multiple of the period T2 of the DRX, that is, T1 = P × T2, where P is a positive integer.

Optionally, the value of P may be predefined by a communication system or a communication protocol.

Alternatively, the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that the transmission period of each reference signal is within the period of the DRX.

As another example, the period T2 of the DRX is an integer multiple of the transmission period T1 of the reference signal, that is, T2 = Q × T1, where Q is a positive integer.

Optionally, the value of Q may be predefined by a communication system or a communication protocol.

Alternatively, the value of Q may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that a reference signal transmission period exists in each DRX cycle.

In addition, it should be noted that, in this application, the start time of the first DRX cycle and the start time of the first reference signal transmission cycle may be the same.

Optionally, the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal.

It should be understood that 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.

In addition, the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.

Optionally, 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.

Optionally, 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.

In the present application, 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.

Alternatively, in the present application, 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.

In this application, the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.

That is, let the start time of the transmission period # 1 of the reference signal be t # 1, and the start time of the transmission period of the reference signal in the transmission period # 1 be t # 2, then the time domain position offset of the reference signal S1 can be the difference between t # 2 and t # 1.

For another example, in this application, each reference signal transmission period may include multiple time units. In this case, 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.

By way of example and not limitation, in this application, the time unit may include a symbol, a time slot, a mini time slot, a transmission time interval, or a short transmission time interval.

That is, assuming that the reference signal corresponds to the k-th time unit of each transmission cycle in the time domain, the time domain position offset S1 of the reference signal may be k, where k is a positive integer or zero.

By way of example and not limitation, the unit of S1 may include a slot.

In the present application, 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.

As another example, in the present application, each DRX cycle may include multiple time units. In this case, 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.

That is, assuming that the start time of the wake-up period corresponds to the h-th time unit of each DRX cycle in the time domain, 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.

It should be noted that, in this application, 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 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.

By way of example and not limitation, for example, in this application, 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.

As another example, in the present application, 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.

In addition, by way of example and not limitation, 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.

Optionally, in this application, the time length corresponding to S1 is greater than or equal to the time length corresponding to S2.

That is, 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.

It should be understood that the relationship between S1 and S2 is 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.

Among them, S2 can be used to determine the start time of the DRX cycle.

Alternatively, S2 may be used to determine a start time of a wake-up period within a DRX cycle.

Optionally, 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.

Specifically, it is assumed that the DRX cycle #a and the reference signal transmission cycle #b are within the same time range (or that the cycle #a and the cycle #a have overlapping portions).

For example, 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.

Alternatively, 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.

And, 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.

That is, the start time of the period #b falls within the wake-up period in the period #b.

Optionally, 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.

That is, 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.

That is, 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.

Therefore, it is possible to ensure that 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.

In addition, in this application, 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 . Here, K is an integer greater than or equal to two.

In addition, 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.

According to a third aspect, a method for transmitting an uplink channel is provided, 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.

In this application, “sending an uplink channel” can be understood as sending information or signals on the uplink channel, for example, reference signals, data, or control information.

Optionally, the uplink channel is used to carry channel quality information.

According to the solution of this application, by independently configuring the repetition number set for the DRX mode, it is possible to improve the transmission of the uplink channel when the terminal device cannot obtain the uplink beam information and cannot complete the transmission of the uplink channel due to user movement and other reasons in the DRX mode. Reliability and reception performance.

It should be noted that the above-mentioned "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.

Alternatively, "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.

Alternatively, 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.

For example, optionally, 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. In non-DRX mode.

Alternatively, 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.

Optionally, in a non-DRX mode, 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.

That is, the first set of repetition times is dedicated to the discontinuous reception DRX mode. It can be understood that in the 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). In the non-DRX mode, a non-repeated transmission mode (or a one-time transmission mode) can be used to transmit channel quality information.

Optionally, 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.

Optionally, 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.

Among them, "before receiving the beam indication information of the uplink channel, send the uplink channel according to the first repetition number" and "after receiving the beam indication information of the uplink channel, send confirmation information to the network device, the confirmation information 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.

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.

Optionally, 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.

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.

According to a fourth aspect, a method for receiving an uplink channel is provided, 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.

In the present application, "receiving an uplink channel" can be understood as receiving information or signals on the uplink channel, for example, reference signals, data, or control information.

Optionally, the uplink channel is used to carry channel quality information.

According to the solution of this application, by independently configuring the repetition number set for the DRX mode, it is possible to improve the transmission of the uplink channel when the terminal device cannot obtain the uplink beam information and cannot complete the transmission of the uplink channel due to user movement and other reasons in the DRX mode. Reliability and reception performance.

It should be noted that the above-mentioned "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.

Alternatively, "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.

Alternatively, 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.

For example, optionally, 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. In non-DRX mode, or the second set of repetition times is not dedicated to DRX mode.

Alternatively, 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.

Optionally, in a non-DRX mode, 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.

That is, the first set of repetition times is dedicated to the discontinuous reception DRX mode. It can be understood that in the 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). In the non-DRX mode, a non-repeated transmission mode (or a one-time transmission mode) can be used to transmit channel quality information.

Optionally, 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.

Optionally, 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.

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.

Optionally, 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.

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.

According to a fifth aspect, a method for sending an uplink channel is provided, 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.

Optionally, the uplink channel is used to carry a sounding reference signal (SRS).

Optionally, 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.

According to the solution of the present application, by associating the configuration parameters of the uplink channel with the configuration parameters of the DRX mode, 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.

It should be noted that the above-mentioned "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.

Alternatively, "beam" can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.

Optionally, the configuration parameter of the uplink channel includes a sending period T1 of the uplink channel.

And, the configuration parameter of the DRX mode includes a period T2 of the DRX.

In this application, 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.

In addition, for example, the wake-up period may include a period in which the duration timer runs.

As another example, the wake-up period may include a period during which the DRX inactive timer runs.

As another example, the wake-up period may include a period during which the retransmission timer runs.

In addition, 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.

In the present application, for example, the transmission period T1 of the uplink channel is an integer multiple of the period T2 of the DRX, that is, T1 = P × T2, where P is a positive integer.

Optionally, the value of P may be predefined by a communication system or a communication protocol.

Alternatively, the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that the transmission period of each uplink channel is within the period of the DRX.

As another example, the period T2 of the DRX is an integer multiple of the transmission period T1 of the uplink channel, that is, T2 = Q × T1, where Q is a positive integer.

Optionally, the value of Q may be predefined by a communication system or a communication protocol.

Alternatively, the value of Q may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that a transmission period of an uplink channel exists in each DRX cycle.

In addition, it should be noted that, in this application, the start time of the first DRX cycle and the start time of the first uplink channel transmission cycle may be the same.

Optionally, the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel.

It should be understood that 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.

In addition, the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.

Optionally, 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.

Optionally, 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.

In this application, 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.

In the present application, 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.

Alternatively, in the present application, 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.

In this application, the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.

As another example, in the present application, the transmission period of each uplink channel may include multiple time units. In this case, 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. By way of example and not limitation, in this application, 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.

That is, assuming that the starting time of the uplink channel corresponds to the k-th time unit of each transmission cycle in the time domain, the time domain position offset S1 of the uplink channel may be k, where k is a positive integer or zero. .

By way of example and not limitation, the unit of S1 may include a slot.

In the present application, 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.

That is, let 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.

As another example, in this application, each DRX cycle may include multiple time units. In this case, 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.

That is, assuming that the start time of the wake-up period corresponds to the h-th time unit of each DRX cycle in the time domain, 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.

It should be noted that, in this application, 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. Or, for example, 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.

By way of example and not limitation, for example, in this application, 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.

As another example, in the present application, 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.

In addition, by way of example and not limitation, 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.

Among them, S2 can be used to determine the start time of the DRX cycle.

Alternatively, S2 may be used to determine a start time of a wake-up period within a DRX cycle.

Optionally, 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.

Specifically, it is assumed that the DRX cycle #a and the reference signal transmission cycle #b are within the same time range (or that the cycle #a and the cycle #a have overlapping portions).

For example, 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.

Alternatively, 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.

And, 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.

That is, the start time of the period #b falls within the wake-up period in the period #b.

That is, 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.

It should be understood that the relationship between S1 and S2 is 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.

Optionally, 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.

That is, 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.

That is, 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.

Therefore, it is possible to ensure that 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.

According to a sixth aspect, a method for receiving an uplink channel is provided, 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.

Optionally, the uplink channel is used to carry a sounding reference signal.

Optionally, 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.

According to the solution of the present application, by associating the configuration parameters of the uplink channel with the configuration parameters of the DRX mode, 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.

It should be noted that the above-mentioned "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.

Alternatively, "beam" can be understood as a reference signal, such as a channel state information reference signal used for downlink channel measurement.

Optionally, the configuration parameter of the uplink channel includes a sending period T1 of the uplink channel.

And, the configuration parameter of the DRX mode includes a period T2 of the DRX.

In this application, 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.

In addition, for example, the wake-up period may include a period during which the timer is running.

As another example, the wake-up period may include a period during which the drx-inactivity timer is running.

As another example, the wake-up period may include a period during which the ReTransmission Timer is running.

In addition, 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.

In the present application, for example, the transmission period T1 of the uplink channel is an integer multiple of the period T2 of the DRX, that is, T1 = P × T2, where P is a positive integer.

Optionally, the value of P may be predefined by a communication system or a communication protocol.

Alternatively, the value of P may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that the transmission period of each uplink channel is within the period of the DRX.

As another example, the period T2 of the DRX is an integer multiple of the transmission period T1 of the uplink channel, that is, T2 = Q × T1, where Q is a positive integer.

Optionally, the value of Q may be predefined by a communication system or a communication protocol.

Alternatively, the value of Q may be determined by the network device and delivered to the terminal device through, for example, high-level signaling.

Therefore, it is possible to ensure that a transmission period of an uplink channel exists in each DRX cycle.

In addition, it should be noted that, in this application, the start time of the first DRX cycle and the start time of the first uplink channel transmission cycle may be the same.

Optionally, the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel.

It should be understood that 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.

In addition, the configuration parameters of the DRX mode include a time domain position offset S2 of a wake-up period of the DRX mode.

Optionally, 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.

In this application, 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.

In the present application, 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.

Alternatively, in the present application, 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.

In this application, the values of S1 and S2 may be smaller than the values of T1 and T2, respectively.

That is, if the starting time of the transmission period # 1 of the uplink channel is t # 1, and the starting time of the transmission period of the uplink channel in the transmission period # 1 is t # 2, the time domain position offset of the uplink channel S1 can be the difference between t # 2 and t # 1.

As another example, in the present application, the transmission period of each uplink channel may include multiple time units. In this case, 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.

By way of example and not limitation, in this application, 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.

That is, assuming that the starting time of the uplink channel corresponds to the k-th time unit of each transmission cycle in the time domain, the time domain position offset S1 of the uplink channel may be k, where k is a positive integer or zero. .

By way of example and not limitation, the unit of S1 may include a slot.

In the present application, 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.

That is, let 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.

As another example, in this application, each DRX cycle may include multiple time units. In this case, 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.

That is, assuming that the start time of the wake-up period corresponds to the h-th time unit of each DRX cycle in the time domain, 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.

It should be noted that, in this application, 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. Or, for example, 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.

By way of example and not limitation, for example, in this application, 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.

As another example, in the present application, 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.

In addition, by way of example and not limitation, 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.

Among them, S2 can be used to determine the start time of the DRX cycle.

Alternatively, S2 may be used to determine a start time of a wake-up period within a DRX cycle.

Optionally, 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.

Specifically, it is assumed that the DRX cycle #a and the reference signal transmission cycle #b are within the same time range (or that the cycle #a and the cycle #a have overlapping portions).

For example, 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.

Alternatively, 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.

And, 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.

That is, the start time of the period #b falls within the wake-up period in the period #b. In the present application, 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.

It should be understood that the relationship between S1 and S2 is 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.

That is, 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.

That is, 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.

Therefore, it can be ensured that 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.

According to a seventh aspect, there is provided 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.

It should be understood that 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.

In one design, the communication device is a communication chip, and 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.

In another design, 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.

According to an eighth aspect, a terminal device is provided, 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, and 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.

Optionally, there are one or more processors, and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory is separately provided from the processor.

In a ninth aspect, a network device is provided, 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, and 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.

Optionally, there are one or more processors, and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory is separately provided from the processor.

In a specific implementation process, 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. For example, 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. For another example, 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. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, 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. 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.

According to a tenth aspect, a processor is provided, 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. Method.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and 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, and a signal output by the output circuit may be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and output 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.

According to an eleventh aspect, a processing device is provided, 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.

Optionally, there are one or more processors, and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory is separately provided from the processor.

In the specific implementation process, 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.

According to a twelfth aspect, a chip is provided, 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.

According to a thirteenth aspect, a computer program product is provided. The 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.

According to a fourteenth aspect, a computer-readable medium is provided, where the 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.

According to the solution of the present application, by associating the configuration parameters of the downlink reference signal with the configuration parameters of the DRX mode, 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.

BRIEF DESCRIPTION OF THE DRAWINGS

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.

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.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a global mobile communication (GSM) system, a code division multiple access (CDMA) system, and a broadband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Global Interoperability for Microwave Access (WiMAX) communication system, 5th generation in the future, 5G) system or new radio (NR).

By way of example and not limitation, in the embodiments of the present application, 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.

By way of example and not limitation, in the embodiments of the present application, 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.

In addition, in the embodiments of the present application, the terminal device may also be a terminal device in an Internet of Things (IoT) system. 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.

In the embodiment of the present application, the IOT technology may implement, for example, narrow band NB technology, to achieve mass connection, deep coverage, and terminal power saving. For example, the NB includes only one resource block (RB), that is, the bandwidth of the NB is only 180 KB. To achieve mass access, 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.

In addition, in this application, 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. (NodeB, eNB or eNodeB), 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 The examples are not limited.

In addition, in the embodiment of the present application, an access network device provides services to a cell, and 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. 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.

In addition, multiple carriers on the carrier in the LTE system or 5G system can work on the same frequency at the same time. In some special scenarios, the above carrier and cell concepts can be considered equivalent. For example, in a carrier aggregation (CA) scenario, when a secondary carrier is configured for a UE, the carrier index of the secondary carrier and the cell ID (cell ID) of the secondary cell operating on the secondary carrier will be carried at the same time. In this case, it can be considered that the concept of a carrier is the same as a cell. For example, 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.

In addition, in this application, 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. 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.

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.

In the embodiment of the present application, 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. In addition, 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. For example, 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.

In addition, 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. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, 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.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media used to store information. The term "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.

It should be noted that in the embodiment of the present application, multiple application programs can be run at the application layer. In this case, 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. As shown in FIG. 1, 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. In addition, 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.

As shown in FIG. 1, 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. In addition, 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.

For example, in a frequency division duplex (FDD) system, for example, 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.

For another example, in a time division duplex (TDD) system and a full duplex system, the forward link 118 and the reverse link 120 may use a common frequency band, and the forward link 124 and the reverse link 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. For example, 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. In the process that the access network device 102 communicates with the terminal devices 116 and 122 through the forward links 118 and 124, respectively, 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. In addition, compared to the way in which the access network device sends signals to all of its terminal devices through a single antenna or multiple antenna transmit diversity, 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.

At a given time, 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. When transmitting data, the wireless communication transmitting device may encode the data for transmission. Specifically, 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.

In addition, 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.

In the embodiment of the present application, 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. In the time domain, the time-frequency resource may include one or more time units.

Among them, 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).

In a communication system, such as a 5G system, in order to counteract path loss in a high-frequency scenario, two communication devices having a communication connection may respectively obtain a gain through beam forming. The transmitting end (for example, a network device) and the receiving end (for example, a terminal device) may obtain a pairing relationship between a transmitting beam and a receiving beam through beam training.

Among them, 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. For example, 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, and a receiving beam may refer to a signal intensity distribution of a wireless signal received from an antenna in different directions in space.

In the NR protocol, the beam may be, for example, a spatial filter. However, it should be understood that this application does not exclude the possibility of defining other terms to represent the same or similar meaning in future agreements.

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.

In an implementation manner, 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. Specifically, 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.

By traversing each transmitting beam and 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.

In this application, 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. Correspondingly, 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). It should be understood that the functions and specific examples of the downlink reference signals listed above are merely illustrative, and should not constitute any limitation to this application. This application does not exclude the possibility of defining downlink reference signals of other functions or uses in future agreements. .

In this application, 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.

By way of example and not limitation, the configuration parameters of the downlink reference signal may include, but are not limited to, the following parameters:

Parameter A. Transmission period of downlink reference signal

Specifically, 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.

In this application, the reference signal of each beam may be sent periodically. That is, 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.

In addition, it should be noted that, in the embodiment of the present application, the transmission periods of different reference signals (for example, reference signals of different beams) 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

Specifically, in the present application, 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. For example, 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.

It should be noted that the communication system can be divided into multiple system cycles in the time domain. 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.

Alternatively, 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. For example, 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.

In addition, it should be noted that in the embodiments of the present application, offsets of different reference signals (for example, reference signals of different beams) 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.

Figure 2 shows a typical DRX cycle. As shown in FIG. 2, in this application, 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.

As shown in FIG. 2, during an OnDuration 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.

As shown in FIG. 2, in the Opportunity for DRX period, the UE enters sleep without monitoring the time of the PDCCH subframe in order to save power.

It can be seen from FIG. 2 that the longer the time spent for DRX sleep, the lower the power consumption of the UE, but correspondingly, the delay of service transmission will also increase.

In the DRX mechanism, the terminal device can receive downlink data and uplink authorization during the activation period. In addition, the terminal device can perform a DRX cycle according to a paging cycle in the idle mode. Alternatively, 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.

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.

In this application, 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.

By way of example and not limitation, in this application, the DRX cycle may include a short DRX cycle and a long DRX cycle.

Specifically, as described above, 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. For example, 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.

That is, if 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.

And, after the activation period or after the short DRX ring timer expires, it enters the long DRX cycle operation phase.

In the present application, 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. For example, 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.

In the following, the timers used in the DRX mechanism are exemplarily described.

1. 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.

2.DRX inactivity timer (drx-inactivity timer)

Specifically, suppose that the subframe No. 0 is the last subframe in the on-duration period. At this time, 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. If executed in accordance with the on-duration timer, 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. In order to avoid this kind of situation, 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.

3.DRX Retransmission Timer

In the DRX mechanism, the meaning of DRX Retransmission Timer is: the minimum number of subframes that the UE needs to wait before receiving the expected downlink retransmission data. For FDD-LTE, the value of HARQ RTT Timer is fixed equal to 8 subframes. For TDD-LTE, the value of 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.

In this application, the wake-up period may include a period corresponding to at least one of the on-duration timer, drx-inactivity timer, and DRXRetransmission Timer.

It should be understood that the timers listed above are only exemplary descriptions, and the present application is not limited thereto.

In the idle mode, 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.

In the RRC connection state, 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.

In this application, 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. When 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. By way of example and not limitation, the preset condition may include, but is not limited to:

[(SFN × 10) + subframe number] mod (short DRX cycle duration) = (drx start offset) mod (short DRX cycle duration).

Among them, SFN indicates the system frame number, and 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:

[(SFN × 10) + number of sub-frames] mod (long DRX cycle duration) = drxStartOffset.

In addition, if a scheduling request (SR) has been sent on the PUCCH, it is in a waiting state at this time, and the PDCCH needs to be monitored in order to obtain an uplink grant for transmitting uplink data. After obtaining a new uplink authorization, DRX will be notified to run in accordance with a fixed DRX process and enter the drx-inactivity timer running phase.

After receiving the new data block #A, it is decoded immediately and the HARQ RTT timer of the corresponding HARQ process is started. As the data block #A fails to decode, the DRX retransmission timer needs to be enabled to monitor the PDCCH after HARQ RTRT times out . In addition, after receiving the data block #A, 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.

After sending the uplink data, the uplink feedback will be received according to the fixed k-value relationship.

In this application, 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.

By way of example and not limitation, the configuration parameters of the DRX mode may include, but are not limited to, the following parameters:

Parameter a. DRX cycle (drx-cycle)

Specifically, 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

Specifically, for example, in this application, 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. In this case, 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. For example, 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.

It should be noted that the communication system can be divided into multiple system cycles in the time domain. 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.

In other words, 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.

For another example, in this application, 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. In this case, 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. For example, 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.

For another example, in the present application, the starting time of a wake-up period may be a time that satisfies the formula [(SFN × 10) + number of sub-frames] mod (long DRX cycle duration) = drxStartOffset, where the wake-up period is on time. Time period.

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).

In S210, the network device #A may configure related parameters of the DRX mode for the terminal device #A.

For example, 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 .

For another example, 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. Hereinafter, for ease of understanding, this offset is referred to as an offset #A.

Thereafter, 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.

In the present application, 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.

For ease of understanding, 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.

By way of example and not limitation, for example, in the present application, the related parameters of the reference signal #A may include a period of the reference signal #A. For ease of understanding, this period is referred to as: period #B.

In this case, 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.

Condition 1

The period #B is an integer multiple of the period #A.

That is, CSI-RS-cycle-in-DRX = P × DRX-cycle, where P is a positive integer.

Among them, 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.

Therefore, each transmission period of the reference signal #A can fall within the DRX cycle of the terminal device #A.

Condition 2

Cycle #A is an integer multiple of cycle #B.

That is, DRX-cycle = Q × CSI-RS-cycle-in-DRX, where Q is a positive integer.

Therefore, at least one transmission period of the reference signal #A can exist in each DRX cycle of the terminal device #A.

It should be noted that, in this application, 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).

As another example, in the present application, the related parameters of the reference signal #A may include an offset (or time domain position offset) of the reference signal #A. For ease of understanding, this offset is written as: offset #B.

In this case, 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.

Condition 3

The offset #B is greater than or equal to the offset #A.

In other words, the start time determined based on the offset #B is not earlier than the start time determined based on the offset #A.

Here the offset #A can be expressed as drx-StartOffset or drx-SlotOffset.

That is, CSI-RS-offset-in-DRX = drx-StartOffset + n,

Or, CSI-RS-offset-in-DRX = drx-SlotOffset,

Among them, n is a positive number. 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.

In addition, 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).

By way of example and not limitation, 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.

Alternatively, the unit (or granularity) of n may be different from the unit of offset #B (or offset #A). For example, 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.

Optionally, the duration corresponding to n may be shorter than the duration of an on-duration period in the DRX cycle of terminal device #A.

In other words, 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.

Therefore, 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. When 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.

FIG. 5 shows an example of the relationship between the arrangement of the reference signal #A determined based on the method described above and the arrangement of the DRX of the terminal device #A when P = 2. That is, in the present application, the period #A and the period #B satisfy the condition 1, and the offset #B and the offset #A satisfy the above condition 3, so that each reference signal transmitted by the network device #A can be ensured #A is received by terminal device #A.

FIG. 6 shows an example of the relationship between the arrangement of the reference signal #A determined based on the above method and the arrangement of the DRX of the terminal device #A when Q = 2. That is, in the present application, the period #A and the period #B satisfy the condition 2 and the offset #B and the offset #A satisfy the condition 3 described above, so that the terminal device #A can be ensured every time when waking up Both can receive the reference signal #A.

It should be understood that the actions listed above by the network device #A in S210 are only exemplary descriptions, and the present application is not limited thereto. For example, 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.

In addition, 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.

That is, in the present application, 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. In addition, 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.

In S220, the network device #A may send related parameters of the reference signal #A to the terminal device #A.

In S230, 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. A.

In addition, in this application, 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.

In addition, 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.

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.

According to the solution of the present application, by associating the configuration parameters of the downlink reference signal with the configuration parameters of the DRX mode, 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.

The transmission process of the uplink channel of the present application will be described below with reference to FIGS. 7 to 12.

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. In this case, 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.

In addition, the uplink channel may also be used to transmit an uplink reference signal, for example, a sounding reference signal (SRS) for uplink channel measurement.

In this application, in order to improve the transmission efficiency and reliability of the uplink channel, 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.

In addition, the non-repeating transmission mechanism can also be used to transmit the uplink channel. In this case, the terminal device sends the uplink channel only once.

In this application, 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.

By way of example and not limitation, the repetition set # 1 may be {1, 2, 4, 8}.

In addition, 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.

Moreover, in the present application, 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. Wherein, 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.

Alternatively, 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.

Optionally, the maximum number of repetitions in the set of repetition times set # 2 is the number of repetitions #b, and the maximum number of repetitions in the set of repetition times set # 1 is the number of repetitions #a. In this application, the number of repetitions # a is greater than or equal to the number of repetitions #b.

Optionally, in the present application, in a non-DRX mode, a non-repeated transmission mechanism may also be used for transmission of the uplink channel.

At 310, the network device #B may determine a target repetition number for the terminal device #B from the repetition number set # 1.

For example, 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.

Specifically, for example, if the service accessed by the terminal device #B is more urgent, the network device #B may determine the larger number of repetitions in the repetition number set # 1 as the target number of repetitions.

As another example, if the service accessed by the terminal device #B has a high requirement on the transmission delay (for example, a URLLC service), the network device #B may determine the smaller repetition number in the repetition number set # 1 as the target repetition. frequency.

In S320, the network device #B may send the indication information of the target repetition number to the terminal device #B.

By way of example and not limitation, each repetition number in the repetition number set # 1 may uniquely correspond to an index value, and the indication information of the target repetition number may be an index value corresponding to the target repetition number.

In S330, the terminal device #B may transmit an uplink channel based on the target repetition number while it is in the DRX mode.

In the DRX mode, the beam used by the terminal device may be changed due to the movement of the terminal device. In this case, the terminal device cannot reliably complete the transmission of the uplink channel because it cannot obtain information about the beam.

In view of the foregoing, according to the method for sending an uplink channel of the present application, by setting independently a set of repetition times used by the terminal device in the DRX mode, 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. In addition, in non-DRX mode, it can avoid wasting resources due to excessive repeated transmissions.

Optionally, 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.

For example, 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.

For another example, 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.

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.

In this case, if the terminal device #B still uses the above repeated transmission times, it may cause waste of resources.

In this regard, the following processing procedures may be adopted in the embodiments of the present application.

In the DRX mode, if the terminal device #B does not receive the information of the uplink beam, or the terminal device #B fails to determine the available beam for transmitting the uplink channel based on the uplink beam information, the terminal device #B may be based on The number of target repetitions indicated by the network device #B sends the uplink channel.

In the DRX mode, if the terminal device #B receives the information of the uplink beam, or the terminal device #B can determine the available beam for transmitting the uplink channel based on the uplink beam information, the terminal device #B may be based on the number of repetitions. The number of repetitions specified in the set # 2 (for example, may be indicated by the network device #B), and the uplink channel is transmitted.

Or, in the DRX mode, if the terminal device #B receives the information of the uplink beam, or the terminal device #B can determine the available beam for transmitting the uplink channel based on the uplink beam information, the terminal device #B may adopt Non-repeating sending mechanism, sending uplink channel.

In addition, in this application, after receiving the information of the uplink beam, the terminal device #B may send confirmation information to the network device #B.

Therefore, in the DRX mode, if the network device #B does not receive the confirmation information, 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.

In the DRX mode, if the network device #B receives the confirmation information, 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).

Or, in the DRX mode, if the network device #B receives the confirmation information, 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.

It should be noted that, when the terminal device can determine the uplink beam based on the information of the downlink beam, 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.

As shown in FIG. 8, during the period # 1, the terminal device #B is in the DRX mode, and the information of the uplink beam cannot be obtained. In this case, 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. As an example and not limitation, the number of repetitions #A may be 4 in the configuration shown in FIG. 8.

In the period # 2, the terminal device #B is in the DRX mode and the information of the uplink beam is obtained. In this case, 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. As an example and not limitation, in the configuration shown in FIG. 8, 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. In this case, 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.

In addition, the uplink channel can also be used to transmit an uplink reference signal, for example, an SRS used for uplink channel measurement.

In S410, the network device #C may configure related parameters of the DRX mode for the terminal device #C.

For example, 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 .

For another example, 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. Hereinafter, for ease of understanding, this offset is referred to as: offset # 1.

Thereafter, 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.

In this application, 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.

In order to facilitate understanding, 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.

By way of example and not limitation, for example, in this application, related parameters of the uplink channel # 1 may include a period of the uplink channel # 1. For ease of understanding, this cycle is referred to as: Cycle # 2.

In this case, 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.

Condition A

Cycle # 2 is an integer multiple of cycle # 1.

That is, CSI-report-cycle-in-DRX = P × DRX-cycle, where P is a positive integer.

Among them, 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.

Therefore, each transmission period of the uplink channel # 1 can fall within the DRX cycle of the terminal device #C.

Condition B

Cycle # 1 is an integer multiple of cycle # 2.

That is, DRX-cycle = Q × CSI-report-cycle-in-DRX, where Q is a positive integer.

Therefore, at least one transmission period of the uplink channel # 1 can exist in each DRX period of the terminal device #C.

It should be noted that, in the present application, 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).

As another example, in the present application, the related parameters of the uplink channel # 1 may include an offset (or a time domain position offset) of the uplink channel # 1. For ease of understanding, this offset is written as: offset # 2.

In this case, 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.

Condition C

The offset # 2 is greater than or equal to the offset # 1.

In other words, the start time determined based on the offset # 2 is not earlier than the start time determined based on the offset # 1.

Here offset # 1 can be expressed as drx-StartOffset or drx-SlotOffset,

That is, CSI-report-offset-in-DRX = drx-StartOffset + n, or CSI-report-offset-in-DRX = drx-SlotOffset + n, where n is a positive number.

Among them, 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.

By way of example and not limitation, 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.

Alternatively, 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.

Optionally, the duration corresponding to n may be shorter than the duration of an on-duration period in the DRX cycle of terminal device #C.

In other words, 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.

Therefore, 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. When 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.

FIG. 11 shows an example of the relationship between the configuration of the uplink channel # 1 determined by the above method and the DRX configuration of the terminal device #C when P = 2. That is, in the present application, the cycle # 1 and the cycle # 2 satisfy the condition 1, and the offset # 2 and the offset # 1 satisfy the above condition 3, so that each uplink channel transmitted by the network device #C can be ensured # 1 is received by terminal device #C.

FIG. 12 shows an example of the relationship between the configuration of the uplink channel # 1 determined by the above method and the DRX configuration of the terminal device #C when Q = 2. That is, in the present application, the cycle # 1 and the cycle # 2 satisfy the condition 2 and the offset # 2 and the offset # 1 satisfy the above condition 3, so that the terminal device #C can be ensured every time when it wakes up Both can receive uplink channel # 1.

It should be understood that the actions listed above by the network device #C in S410 are only illustrative, and this application is not limited thereto. For example, 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.

In addition, 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.

That is, in the present application, 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. In addition, 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.

In S420, the network device #C may send the related parameters of the uplink channel # 1 to the terminal device #C.

In S430, 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. .

According to the solution of this application, by associating the configuration parameters of the uplink channel (for example, the uplink reference signal or the channel quality information report) with the configuration parameters of the DRX mode, 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.

According to the foregoing method, FIG. 13 is a schematic diagram of a communication device 10 according to an embodiment of the present application. As shown in FIG. 13, 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, and 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).

Further, 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). Further, 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.

Optionally, if the apparatus 10 for beam detection is a terminal device, the input port 13 is a receiver, and 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.

Optionally, if the device 10 for detecting the beam is a chip or a circuit, the input port 13 is an input interface, and the output port 14 is an output interface.

As an implementation manner, 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.

As another implementation manner, 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. .

In an implementation manner, 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.

Optionally, the configuration parameter of the reference signal includes a transmission period T1 of the reference signal, and the configuration parameter of the DRX mode includes a period T2 of DRX, where:

T1 = P × T2, where P is a positive integer, or

T2 = Q × T1, where Q is a positive integer.

Optionally, the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal, and 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.

Optionally, the difference between S1 and S2 is less than or equal to the length of the wake-up period of the DRX mode.

In another implementation manner, 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.

Optionally, 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 for non- DRX mode; or

Optionally, in a non-DRX mode, the uplink channel is transmitted in a non-repeated transmission manner.

Optionally, 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. .

Optionally, 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;

Thereafter, 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.

In another implementation manner, 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.

Optionally, the configuration parameter of the uplink channel includes a transmission period T1 of the uplink channel, and the configuration parameter of the DRX mode includes a period T2 of DRX, where:

T1 = P × T2, where P is a positive integer, or

T2 = Q × T1, where Q is a positive integer.

Optionally, the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel, and 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.

Optionally, the difference between S1 and S2 is less than the length of the wake-up period of the DRX mode.

The functions and actions of 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. Here, in order to Avoid detailed descriptions and omit detailed descriptions.

For concepts, explanations and detailed descriptions and other steps related to the technical solution provided by the embodiments of the present application related to the device 10, please refer to the description of these contents in the foregoing method or other embodiments, and will not be repeated here.

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. In other words, the terminal device 20 may perform the actions performed by the terminal device in the foregoing method 200, 300, or 400.

For convenience of explanation, FIG. 14 shows only the main components of the terminal device. As shown in FIG. 14, 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. For example, the processor is used to support the terminal device to execute the foregoing method for transmitting a precoding matrix. The described action. 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.

When the terminal device is turned on, 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. When the data needs to be sent wirelessly, 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. When data is sent to the terminal device, 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.

Those skilled in the art can understand that, for ease of description, 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.

For example, 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. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, which are interconnected through technologies such as a bus. Those skilled in the art can understand that 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.

Exemplarily, in the embodiment of the present application, 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. As shown in FIG. 14, 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. Optionally, 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. Exemplarily, the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit.

According to the foregoing method, FIG. 15 is a schematic diagram of a communication apparatus 30 according to an embodiment of the present application. As shown in FIG. 15, 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, and 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.

Further, 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).

Still further, the 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.

In addition, it may be considered to use 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.

In an implementation manner, 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.

Optionally, the configuration parameter of the reference signal includes a transmission period T1 of the reference signal, and the configuration parameter of the DRX mode includes a period T2 of DRX, where:

T1 = P × T2, where P is a positive integer, or

T2 = Q × T1, where Q is a positive integer.

Optionally, the configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal, and 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.

Optionally, the difference between S1 and S2 is less than or equal to the length of the wake-up period of the DRX mode.

In another implementation manner, 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;

In non-DRX mode, the uplink channel is transmitted using non-repeated transmission.

Optionally, 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.

Optionally, 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 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. In the non-DRX mode, the confirmation information is used to instruct the terminal device to receive beam indication information of the uplink channel.

Optionally, 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.

In another implementation manner, 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.

Optionally, the configuration parameter of the uplink channel includes a transmission period T1 of the uplink channel, and the configuration parameter of the DRX mode includes a period T2 of DRX, where:

T1 = P × T2, where P is a positive integer, or

T2 = Q × T1, where Q is a positive integer.

Optionally, the configuration parameter of the uplink channel includes a time domain position offset S1 of the uplink channel, and 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.

Optionally, the difference between S1 and S2 is less than or equal to the length of the wake-up period of the DRX mode.

The functions and actions of the 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). Here, in order to avoid redundant description, detailed descriptions are omitted.

For concepts, explanations, and detailed descriptions and other steps related to the technical solution provided by the embodiment of the present application related to the device 30, refer to the description of the content in the foregoing method or other embodiments, and will not be repeated here.

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 # α) 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. The 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. For example, 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.

In one example, 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. For example, 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.

In a possible implementation manner, with the development of system-on-chip (SoC) technology, 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 To achieve, 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. Optionally, the base station function chip can also read the external memory of the chip to realize the related functions of the base station.

It should be understood that 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.

According to the method provided in the embodiment of the present application, the embodiment of the present application further provides a communication system, which includes the foregoing network device and one or more terminal devices.

It should be understood that, in the embodiment of the present application, 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) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that 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. Among them, 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. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access Access memory (synchronous DRAM (SDRAM)), double data rate synchronous dynamic random access memory (double SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access Fetch memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct RAMbus RAM, DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, 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. When the computer instructions or computer programs are loaded or executed on a computer, 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.

It should be understood that the term “and / or” in this document is only an association relationship describing an associated object, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of this application The implementation process constitutes any limitation.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, 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.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment. In addition, 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. 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.

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims (29)

A method for receiving a reference signal, comprising: The terminal device receives configuration information from a network device, where the configuration information is used to indicate a configuration parameter of a reference signal, wherein the configuration parameter of the reference signal is determined according to the configuration parameter of the 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 terminal device receives a reference signal from the network device according to a configuration parameter of the reference signal. The method according to claim 1, wherein the configuration parameter of the reference signal includes a transmission period T1 of the reference signal, and the configuration parameter of the DRX mode includes a period T2 of DRX, wherein, T1 = P × T2, where P is a positive integer, or T2 = Q × T1, where Q is a positive integer. The method according to claim 1 or 2, wherein the configuration parameters of the reference signal include a time domain position offset S1 of the reference signal, and the configuration parameters of the DRX mode include wake-up of the DRX mode. The time domain position offset S2 of the time period, wherein 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 method according to claim 3, wherein a time interval between a transmission start of the reference signal determined based on the S1 and a start time of a DRX cycle determined based on the S2 is less than or equal to the DRX mode The length of the wake-up period. A method for transmitting a reference signal, comprising: The network device sends configuration information to the terminal device, where the configuration information is used to indicate a configuration parameter of a reference signal, wherein the configuration parameter of the reference signal is a configuration parameter of the network device according to the discontinuous reception DRX mode of the terminal device Determined, or the configuration parameters of the DRX mode are determined by the network device according to the configuration parameters of the reference signal; The network device sends the reference signal to the terminal device according to a configuration parameter of the reference signal. The method according to claim 5, wherein the configuration parameter of the reference signal includes a transmission period T1 of the reference signal, and the configuration parameter of the DRX mode includes a period T2 of DRX, wherein, T1 = P × T2, where P is a positive integer, or T2 = Q × T1, where Q is a positive integer. The method according to claim 5 or 6, wherein the configuration parameters of the reference signal include a time domain position offset S1 of the reference signal, and the configuration parameters of the DRX mode include wake-up of the DRX mode The time domain position offset S2 of the time period, wherein 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 method according to claim 7, wherein a time interval between a transmission start of the reference signal determined based on the S1 and a start time of a DRX cycle determined based on the S2 is less than or equal to the DRX mode The length of the wake-up period. A method for sending an uplink channel, comprising: The terminal device receives the indication information of the first number of repetitions from the network device, the first number of repetitions belongs to a first number of repetitions set, the first number of repetitions set includes at least one number of repetitions, and the first number of repetitions set is dedicated to non- Continuous receiving DRX mode; During the period in which the terminal device is in the DRX mode, the terminal device sends an uplink channel according to the first repetition number. The method according to claim 9, wherein 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 repetition Times, the second set of repetition times is used in a non-DRX mode; or In non-DRX mode, the uplink channel is transmitted using non-repeated transmission. The method according to claim 9 or 10, wherein, when the terminal device is in the DRX mode, sending an uplink channel according to the first repetition number comprises: During the period in which the terminal device is in the DRX mode, before receiving the beam indication information of the uplink channel, the terminal device sends the uplink channel according to the first repetition number. The method according to any one of claims 9 to 11, wherein the method further comprises: After the terminal device is in the DRX mode, after receiving the beam indication information of the uplink channel, the terminal device sends confirmation information to the network device, where the confirmation information is used to instruct the terminal device to receive Beam indication information of the uplink channel; The terminal device sends an 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 repetition number set is dedicated to non-DRX Mode; or The terminal device sends an uplink channel in a non-repeated transmission manner. A method for receiving an uplink channel, comprising: The network device sends the indication information of the first number of repetitions to the terminal device, the first number of repetitions belongs to a first number of repetitions set, the first number of repetitions set includes at least one number of repetitions, and the first number of repetitions set is dedicated to non- Continuous receiving DRX mode; The network device receives an uplink channel according to the first repetition number while the terminal device is in the DRX mode. The method according to claim 13, wherein 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 repetition Times, the second set of repetition times is used in a non-DRX mode; or In non-DRX mode, the uplink channel is transmitted using non-repeated transmission. The method according to claim 13 or 14, further comprising: Sending, by the network device, beam indication information of the uplink channel to the terminal device; and The receiving, by the network device, an uplink channel according to the first set of repetition times while the terminal device is in the DRX mode includes: Before the terminal device is in the DRX mode, before receiving the confirmation information sent by the terminal device, the network device receives an uplink channel according to the first repetition number, and the confirmation information is used to indicate Receiving, by the terminal device, beam indication information of the uplink channel. The method according to any one of claims 13 to 15, wherein the method further comprises: Sending, by the network device, beam indication information of the uplink channel to the terminal device; During the period when the terminal device is in the DRX mode, after receiving the confirmation information sent by the terminal device, the network device receives an uplink channel according to a second repetition number, and the second repetition number belongs to the second A set of repetition times, the second set of repetition times includes at least one repetition number, the second set of repetition times is used in a non-DRX mode, and the confirmation information is used to indicate that the terminal device receives a beam indication of the uplink channel Information; or During the period when the terminal device is in the DRX mode, after receiving the confirmation information sent by the terminal device, the network device receives an uplink channel in a non-repeated transmission manner, and the confirmation information is used to indicate the The terminal device receives the beam indication information of the uplink channel. A communication device, comprising: A communication unit configured to receive configuration information from a network device, where the configuration information is used to indicate a configuration parameter of a reference signal, wherein the configuration parameter of the reference signal is determined according to a configuration parameter of a discontinuous reception DRX mode of the terminal device Or, the configuration parameter of the DRX mode is determined according to the configuration parameter of the reference signal; The processing unit is configured to control the communication unit to receive a reference signal from the network device according to a configuration parameter of the reference signal. The device according to claim 17, wherein the configuration parameter of the reference signal includes a transmission period T1 of the reference signal, and the configuration parameter of the DRX mode includes a period T2 of DRX, where T1 = P × T2 , Where P is a positive integer, or T2 = Q × T1, where Q is a positive integer; and / or The configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal, and the configuration parameter of the DRX mode includes a time domain position offset S2 of a wake-up period of the DRX mode, wherein based on the The transmission start time of the reference signal determined by S1 is not earlier than the start time of the DRX cycle determined based on the S2, and the transmission start time of the reference signal determined based on the S1 and the DRX cycle determined based on the S2 The time interval between the start times is less than or equal to the length of the wake-up period of the DRX mode. A communication device, comprising: A processing unit, configured to determine the configuration parameter of the reference signal according to the configuration parameter of the discontinuous reception DRX mode of the terminal device, or determine the configuration parameter of the DRX mode according to the configuration parameter of the reference signal; The communication unit is configured to send configuration information to a terminal device, where the configuration information is used to indicate a configuration parameter of a reference signal, and send a reference signal to the terminal device according to the configuration parameter of the reference signal. The device according to claim 19, wherein the configuration parameter of the reference signal includes a transmission period T1 of the reference signal, and the configuration parameter of the DRX mode includes a period T2 of DRX, where T1 = P × T2 , Where P is a positive integer, or T2 = Q × T1, where Q is a positive integer; and / or The configuration parameter of the reference signal includes a time domain position offset S1 of the reference signal, and the configuration parameter of the DRX mode includes a time domain position offset S2 of a wake-up period of the DRX mode, wherein based on the The transmission start time of the reference signal determined by S1 is not earlier than the start time of the DRX cycle determined based on the S2, and the transmission start time of the reference signal determined based on the S1 and the DRX cycle determined based on the S2 The time interval between the start times is less than or equal to the length of the wake-up period of the DRX mode. A communication device, comprising: A communication unit, configured to receive 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, the first number of repetitions set includes at least one number of repetitions, and the first number of repetitions set Dedicated to discontinuous reception DRX mode; The processing unit is configured to control the communication unit to send an uplink channel according to the first repetition number during a period in the DRX mode. The apparatus according to claim 21, wherein 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 repetition Times, the second set of repetition times is used in a non-DRX mode; or In non-DRX mode, the uplink channel is transmitted using non-repeated transmission. The apparatus according to claim 21 or 22, wherein the processing unit is configured to control, before the communication unit receives beam indication information of the uplink channel, during a period in the DRX mode. Sending, by the communication unit, an uplink channel according to the first repetition number; The processing unit is configured to control the communication unit to send confirmation information to the network device after the communication unit receives the beam indication information of the uplink channel during the period in the DRX mode. The confirmation information is used to indicate that the terminal device receives the beam indication information of the uplink channel, and controls the communication unit to send the uplink channel according to a second repetition number, where the second repetition number belongs to a second repetition number set, and The second set of repetition times includes at least one repetition number, and the second set of repetition times is dedicated to a non-DRX mode; or the communication unit is controlled to send an uplink channel in a non-repeated transmission manner. A communication device, comprising: A communication unit, configured to send indication information of a first number of repetitions to a terminal 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 number of repetitions, Dedicated to discontinuous reception DRX mode; A processing unit, configured to control the communication unit to receive an uplink channel according to the first repetition number while the terminal device is in the DRX mode. The device according to claim 24, wherein 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 repetition Times, the second set of repetition times is used in a non-DRX mode; or In non-DRX mode, the uplink channel is transmitted using non-repeated transmission. The apparatus according to claim 24 or 25, wherein the communication unit is further configured to send beam indication information of the uplink channel to the terminal device; and The processing unit is specifically configured to control the communication unit according to the first repetition during the period when the terminal device is in the DRX mode and before the communication unit receives the confirmation information sent by the terminal device. Receiving the uplink channel a number of times, and the confirmation information is used to instruct the terminal device to receive beam indication information of the uplink channel; or The processing unit is specifically configured to control the communication unit to receive according to a second repetition number after the communication unit receives the confirmation information sent by the terminal device while the terminal device is in the DRX mode. For an uplink channel, the second repetition number 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, and the confirmation information is used to indicate all The terminal device receives the beam indication information of the uplink channel; or controls the communication unit to receive the uplink channel in a non-repeated transmission manner, and the confirmation information is used to instruct the terminal device to receive the beam indication information of the uplink channel . A communication device, comprising: A processor for executing a computer program stored in a memory, so that the communication device executes the method according to any one of claims 1 to 16. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is run on a computer, the computer executes any one of claims 1 to 16 Item. A chip system, comprising: a processor, configured to call and run a computer program from a memory, so that a communication device on which the chip system is installed executes the method according to any one of claims 1 to 16. .

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