WO2022028558A1

WO2022028558A1 - Communication method, communication apparatus and system

Info

Publication number: WO2022028558A1
Application number: PCT/CN2021/111080
Authority: WO
Inventors: 周涵; 张战战; 铁晓磊; 黄雯雯
Original assignee: 华为技术有限公司
Priority date: 2020-08-07
Filing date: 2021-08-06
Publication date: 2022-02-10
Also published as: CN114071667A

Abstract

Provided in the present application are a communication method, a communication apparatus and a system. The method comprises: a terminal device receives on a primary cell DCI sent by a network device, the DCI being used to instruct the terminal device to switch a secondary cell from dormant to non-dormant; and the terminal device determines, according to the time delay of BWP handover and first information, that the time interval K0 from the DCI to a PDSCH scheduled by the DCI or the time interval K2 from the DCI to a PUSCH is not shorter than a first time period. The delay of BWP handover comprises a first handover delay, the first handover delay is the delay of BWP handover by the secondary cell, and the duration of the first handover delay is N time units. The first information is used to indicate that there is no PDSCH within minK0 time units and/or no PUSCH within minK2 time units after the terminal device receives the DCI. The duration of the first time period is T1 time units, T1 being the larger value among N and minK0/minK2.

Description

Communication method, communication device and system

This application claims the priority of the Chinese patent application with the application number 202010788232.3 and the application title "Communication Method, Communication Device and System" filed with the State Intellectual Property Office of China on August 7, 2020, the entire contents of which are incorporated by reference in in this application.

technical field

The present application relates to the field of wireless communication, and more particularly, to a communication method, communication device and system.

Background technique

Compared with the Long Term Evolution (Long Term Evolution, LTE) system, the fifth-generation access system standard New Radio (NR) supports larger transmission bandwidth, more transceiver antenna arrays, higher transmission rates and More flexible and finer-grained scheduling mechanism. Although the above-mentioned characteristics of NR provide more scope of application, it greatly increases the power consumption burden of terminal equipment.

In the 3rd Generation Partnership Project (3GPP) R16 protocol, the terminal device power saving plan is to introduce a cross-slot scheduling scheme, that is, the network will configure a minimum value of K0 and K2 for the terminal device, and K0 and K0 K2 is greater than 0, called minK0 or minK2. When the terminal device receives the configuration, the terminal device will consider that there is no physical downlink shared channel (physical downlink shared channel) for scheduling DCI scheduling within minK0 time slots after receiving the scheduling downlink control information (DCI). PDSCH), there is no physical uplink shared channel (PUSCH) scheduled by the DCI in minK2 time slots after the DCI is scheduled. Taking downlink scheduling as an example, the terminal device can extend the parsing time of the scheduled DCI to minK0 time slots, and does not need to buffer the received downlink data in the minK0 time slots. Since the available time for DCI analysis becomes longer, the terminal device can reduce the operating frequency of the signal processing device to analyze the DCI, thereby achieving the purpose of reducing power consumption.

However, in the case where the terminal equipment is configured in the carrier aggregation scenario and is configured with the sleep function of the secondary cell, since the terminal equipment does not know whether the DCI contains the secondary cell state switching indication before parsing the DCI, even if the terminal equipment The device is configured with minK0>0 by the network device, and the terminal device cannot relax the DCI processing time. Therefore, the purpose of saving power consumption by scheduling across time slots cannot be achieved.

SUMMARY OF THE INVENTION

The present application provides a communication method, communication device and system, which can save more power consumption for terminal equipment.

In a first aspect, a communication method is provided, including: a terminal device receiving a scheduling DCI sent by a network device on a primary cell, where the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from a sleep state to a non-sleep state state; the terminal device determines the time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or the time interval K2 between the PUSCH and the PUSCH according to the time delay of the partial bandwidth (bandwidth part, BWP) switching and the first information. The first period; wherein, the delay of the BWP handover includes the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N times unit, the first information is used to indicate that the terminal device does not have the PDSCH in minK0 time units after receiving the scheduled DCI and/or the PUSCH does not exist in minK2 time units, and the duration of the first period is T1 Time unit, the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

Based on the above technical solutions, the terminal device determines that K0 or K2 is not less than the first period of time, which is equivalent to the terminal equipment determining that within the first period of time after receiving the scheduled DCI, it does not need to receive and/or transmit the PDSCH scheduled by the scheduled DCI on the secondary cell PUSCH, or no reference signal is sent and/or received on the secondary cell. That is, the terminal device may switch from the dormant BWP to the non-dormant BWP within the first period after receiving the scheduled DCI.

When the minK0/minK2 configured by the network device for the terminal device is greater than N, it is ensured that the terminal device can extend the time delay of the BWP handover of the secondary cell to minK0/minK2 time units, which relaxes the BWP in the secondary cell to a certain extent. A certain degree of power consumption can be saved by the analysis requirements of the scheduling DCI of the terminal device in the handover scenario.

With reference to the first aspect, in some implementations of the first aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay The duration of the handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

Based on the above technical solutions, when the minK0/minK2 configured by the network device for the terminal device is greater than N, the time delay for the terminal device to switch the BWP of the secondary cell can be extended by max(M, minK0)-M or max(M, minK2 )-M, to a certain extent, the analysis requirements of the terminal equipment's scheduling DCI in the BWP handover scenario of the secondary cell are relaxed, and a certain degree of power consumption can be saved.

With reference to the first aspect, in some implementations of the first aspect, the scheduling DCI is used to instruct the terminal device to switch the secondary cell in the dormant group from the dormant state to the non-dormant state, and the first secondary cell belongs to the dormant group, The delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the delay of the BWP handover of each secondary cell in the dormancy group;

The method also includes:

The terminal device determines the maximum value of the one or more third handover delays as the first handover delay.

In a second aspect, a communication method is provided, including: a terminal device receives, on a primary cell, a scheduling DCI sent by a network device, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, the first secondary cell The state of the secondary cell includes a dormant state or a non-dormant state; the terminal device determines, according to the time delay of the BWP handover and the first information, not to send a reference signal or not to receive a reference signal on the first secondary cell within a first period of time after receiving the scheduled DCI Reference signal; wherein, the delay of the BWP handover includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N time units , the first information is used to indicate that the terminal equipment does not have the PDSCH scheduled by the scheduling DCI within minK0 time units after receiving the scheduling DCI and/or the PUSCH scheduled by the scheduling DCI does not exist within minK2 time units. The duration of a period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

Based on the above technical solutions, the terminal equipment does not receive reference signals and/or does not transmit reference signals on the first secondary cell within the first period after the scheduled DCI is scheduled. Therefore, the terminal equipment can go to sleep from sleep within the first period after receiving the scheduled DCI. The BWP switches to a non-sleep BWP, or from a non-sleep BWP to a sleep BWP.

In the case that the minK0/minK2 configured by the network device for the terminal device is greater than N, it is ensured that the terminal device can extend the time delay of the BWP handover of the secondary cell to minK0/minK2 time units, which relaxes the BWP in the secondary cell to a certain extent. A certain degree of power consumption can be saved by the analysis requirements of the scheduling DCI of the terminal device in the handover scenario.

With reference to the second aspect, in some implementations of the second aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay The duration of the handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the second aspect, in some implementations of the second aspect, the scheduling DCI is used to instruct the terminal device to switch the state of the secondary cell in the sleep group, the first secondary cell belongs to the sleep group, and the BWP switches The delay includes one or more third handover delays, and the one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormancy group;

The method also includes:

In a third aspect, a communication method is provided, including: a terminal device receives, on a primary cell, a scheduling DCI sent by a network device, where the scheduling DCI is used to instruct the terminal device to switch states of a first secondary cell, the first secondary cell The state of the secondary cell includes a dormant state and a non-dormant state; the terminal device determines the second time period according to the delay of the BWP handover and the first information, and the first information is used to indicate that the terminal device receives the scheduled DCI minK0 time The PDSCH scheduled by the scheduling DCI does not exist in the unit and/or the PUSCH scheduled by the scheduling DCI does not exist in minK2 time units; if the scheduling DCI is used to instruct the terminal equipment to switch the first secondary cell from the dormant state to the non-dormant state state, the terminal device has the ability to receive the PDSCH or send the PUSCH on the first secondary cell after the second period of time after receiving the scheduling DCI; or, if the scheduling DCI is used to instruct the terminal device to use the first secondary cell When a secondary cell switches from a non-sleep state to a sleep state, the terminal device receives a reference signal or sends a reference signal on the first secondary cell after a second period of time after receiving the scheduled DCI.

Based on the above technical solutions, the minimum scheduling delay (minK0, minK2) configured by the network device for the terminal device, and the time delay for the terminal device to perform BWP handover, the second time period can be determined according to the time delay and the minimum scheduling delay, ensuring that The relaxation gain of the DCI parsing time of the terminal device during BWP handover achieves the purpose of saving the power consumption of the terminal device.

With reference to the third aspect, in some implementations of the third aspect, the BWP handover delay is the first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, and the first handover delay is the first handover delay of the first secondary cell. The duration of a switching delay is N time units, the duration of the second period is T2 time units, and the T2 is the larger value of the N and the minK0, or the T2 is the larger of the N and the minK2. The value of one side.

Based on the above technical solutions, in the case where minK0/minK2 that the network device can configure for the terminal device is greater than N, it is ensured that the terminal device can extend the time delay of the BWP handover of the secondary cell to minK0/minK2 time units, and relax to a certain extent The analysis requirements of the terminal equipment's scheduling DCI in the BWP handover scenario of the secondary cell can be achieved, and a certain degree of power consumption can be saved.

With reference to the third aspect, in some implementations of the third aspect, the BWP handover delay includes a first handover delay and a second handover delay, and the first handover delay is the BWP handover of the first secondary cell The delay of the first handover delay is N time units, the second handover delay is the delay of the BWP handover of the primary cell, and the duration of the second handover delay is M delay units, The duration of the second period is T3 time units, where T3 is the value of the difference between X minus the M, and X is the sum of the larger of the M and the minK0 and the N; or, the T3 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

Based on the above technical solution, the time delay for the terminal equipment to switch the BWP of the secondary cell is actually extended by Δt, and Δt=max(M, minK0)-M, or Δt=max(M, minK2)-M. Therefore, when the minK0/minK2 configured by the network device for the terminal device is greater than N, Δt > 0, which relaxes the analysis requirements of the terminal device's scheduling DCI in the BWP handover scenario of the secondary cell to a certain extent, and can obtain a certain degree of Power saving.

With reference to the third aspect, in some implementations of the third aspect, the scheduling DCI is used to instruct the terminal device to switch the state of the secondary cell in the sleep group, the first secondary cell belongs to the sleep group, and the BWP switches The delay includes one or more third handover delays, and the one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormant group,

The method also includes:

In a fourth aspect, a communication method is provided, comprising: a network device sending a scheduling DCI on a primary cell to a terminal device, where the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from a sleep state to a non-sleep state; The network device determines that the time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or the time interval K2 between the PUSCH is not less than the first time period according to the delay of the BWP handover and the first information; wherein, the BWP handover The delay includes the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, the duration of the first handover delay is N time units, and the first information is used to indicate After the terminal device receives the scheduled DCI, the PDSCH does not exist in minK0 time units and/or the PUSCH does not exist in minK2 time units, the duration of the first period is T1 time units, and T1 is the N and The value of the larger of the minK0, or the value of the T1 is the larger of the N and the minK2.

With reference to the fourth aspect, in some implementations of the fourth aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay The duration of the handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the fourth aspect, in some implementations of the fourth aspect, the scheduling DCI is used to instruct the terminal device to switch the secondary cell in the dormant group from the dormant state to the non-dormant state, and the first secondary cell belongs to the dormant group , the BWP handover delay includes one or more third handover delays, and the one or more third handover delays are respectively the BWP handover delays of each secondary cell in the dormant group;

The method also includes:

The network device determines a maximum value of the one or more third handover delays as the first handover delay.

A fifth aspect provides a communication method, comprising: a network device sending a scheduling DCI to a terminal device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, The state of the first secondary cell includes a dormant state or a non-dormant state; the network device determines, according to the BWP handover delay and the first information, not to send a reference signal on the first secondary cell within a first period of time after sending the scheduled DCI or do not receive a reference signal; wherein, the delay of the BWP handover includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N time units, the first information is used to indicate that there is no PDSCH scheduled by the scheduled DCI within minK0 time units after the terminal device receives the scheduled DCI and/or no PUSCH scheduled by the scheduled DCI exists within minK2 time units , the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

With reference to the fifth aspect, in some implementations of the fifth aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, the second handover delay The duration of the handover delay is M time units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is the Y minus the The value of the difference between the M and the Y is the sum of the larger of the M and the minK2 and the N.

With reference to the fifth aspect, in some implementations of the fifth aspect, the scheduling DCI is used to instruct the terminal device to switch the state of the secondary cell in the sleep group, the first secondary cell belongs to the sleep group, and the BWP switches The delay includes one or more third handover delays, and the one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormancy group;

The method also includes:

In a sixth aspect, a communication method is provided, comprising: a network device sending a scheduling DCI to a terminal device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, The state of the first secondary cell includes a dormant state and a non-dormant state; the network device determines a second time period according to the BWP handover delay and first information, where the first information is used to indicate that the terminal device receives the scheduled DCI after receiving the scheduled DCI. The PDSCH scheduled by the scheduling DCI does not exist within minK0 time units and/or the PUSCH scheduled by the scheduling DCI does not exist within minK2 time units; if the scheduling DCI is used to instruct the terminal equipment to switch the first secondary cell from the sleep state In the non-sleep state, the network device sends the PDSCH or receives the PUSCH in the first secondary cell after the second period of time after sending the scheduling DCI; or, if the scheduling DCI is used to instruct the terminal device to use the first secondary cell When the cell is switched from a non-sleep state to a sleep state, the network device sends a reference signal or receives a reference signal on the first secondary cell after a second period of time after sending the scheduled DCI.

With reference to the sixth aspect, in some implementations of the sixth aspect, the BWP handover delay is the first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, and the first handover delay is the first handover delay of the first secondary cell. The duration of a switching delay includes N time units, the duration of the second period is T2 time units, and the T2 is the larger value of the N and the minK0, or the T1 is the N and the minK2. The value of the larger one.

With reference to the sixth aspect, in some implementations of the sixth aspect, the BWP handover delay includes a first handover delay and a second handover delay, and the first handover delay is the BWP handover of the first secondary cell The delay of the first handover delay is N time units, the second handover delay is the delay of the BWP handover of the primary cell, and the duration of the second handover delay is M delay units, The duration of the second period is T3 time units, where T3 is the value of the difference between X minus the M, and X is the sum of the larger of the M and the minK0 and the N; or, the T3 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the sixth aspect, in some implementations of the sixth aspect, the scheduling DCI is used to instruct the terminal device to switch the state of a secondary cell in a sleep group, and the first secondary cell belongs to the sleep group , the BWP handover delay includes one or more third handover delays, and the one or more third handover delays are respectively the BWP handover delays of each secondary cell in the dormant group,

The method also includes:

In a seventh aspect, a communication apparatus is provided, including a processing unit and a transceiver unit: the transceiver unit is configured to receive, on a primary cell, a scheduling DCI sent by a network device, where the scheduling DCI is used to instruct the terminal device to send the first secondary cell to Switch from the dormant state to the non-dormant state; the processing unit is configured to determine the time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or the time interval K2 between the PUSCH according to the time delay of the BWP switching and the first information not less than the first period; wherein, the delay of the BWP handover includes the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N time units, the first information is used to indicate that the terminal device does not have the PDSCH within minK0 time units and/or the PUSCH does not exist within minK2 time units after the terminal device receives the scheduled DCI, and the duration of the first period is T1 time units, the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

With reference to the seventh aspect, in some implementations of the seventh aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay The duration of the handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the seventh aspect, in some implementations of the seventh aspect, the scheduling DCI is used to instruct the terminal device to switch the secondary cell in the dormant group from the dormant state to the non-dormant state, and the first secondary cell belongs to the dormant group, The delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the delay of the BWP handover of each secondary cell in the dormancy group;

The processing unit is further configured to determine the maximum value of the one or more third switching delays as the first switching delay.

In an eighth aspect, a communication device is provided, including a processing unit and a transceiver unit: the transceiver unit is configured to receive, on the primary cell, a scheduling DCI sent by a network device, where the scheduling DCI is used to indicate the terminal device's response to the first secondary cell The state of the first secondary cell includes a dormant state or a non-dormant state; the processing unit is configured to determine, according to the delay of the BWP handover and the first information, the first secondary cell within the first period after receiving the scheduled DCI The cell does not transmit or receive reference signals; wherein, the delay of the BWP handover includes a first handover delay, and the first handover delay is the delay of the BWP handover of the first secondary cell, and the first handover delay The duration of the delay is N time units, and the first information is used to indicate that the terminal equipment does not exist within minK0 time units after receiving the scheduled DCI, and/or does not exist within minK2 time units of the PDSCH scheduled by the scheduled DCI For the PUSCH scheduled by the scheduling DCI, the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

With reference to the eighth aspect, in some implementations of the eighth aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay The duration of the handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the eighth aspect, in some implementations of the eighth aspect, the scheduling DCI is used to instruct the terminal device to switch the state of the secondary cell in the sleep group, the first secondary cell belongs to the sleep group, and the BWP switches The delay includes one or more third handover delays, and the one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormancy group;

In a ninth aspect, a communication device is provided, including a transceiver unit and a processing unit: the transceiver unit is configured to receive, on the primary cell, a scheduling DCI sent by a network device, where the scheduling DCI is used to indicate the terminal device's response to the first secondary cell The state of the first secondary cell includes a dormant state and a non-dormant state; the processing unit is used to determine the second time period according to the delay of the BWP handover and the first information, and the first information is used to instruct the terminal device to receive The PDSCH scheduled by the scheduling DCI does not exist in minK0 time units after the scheduling DCI and/or the PUSCH scheduled by the scheduling DCI does not exist in minK2 time units; if the scheduling DCI is used to instruct the terminal device to use the first The secondary cell is switched from the dormant state to the non-dormant state, the communication device has the capability of receiving the PDSCH or sending the PUSCH on the first secondary cell after a second period of time after receiving the scheduling DCI; or, if the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from a non-sleep state to a sleep state, and the communication device receives a reference signal or sends a reference signal on the first secondary cell after receiving the scheduled DCI for a second period of time Signal.

With reference to the ninth aspect, in some implementations of the ninth aspect, the delay of the BWP handover is the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the first handover delay is the delay of the BWP handover of the first secondary cell. The duration of a switching delay is N time units, the duration of the second period is T2 time units, and the T2 is the larger value of the N and the minK0, or the T2 is the larger of the N and the minK2. The value of one side.

With reference to the ninth aspect, in some implementations of the ninth aspect, the BWP handover delay includes a first handover delay and a second handover delay, and the first handover delay is the BWP handover of the first secondary cell The delay of the first handover delay is N time units, the second handover delay is the delay of the BWP handover of the primary cell, and the duration of the second handover delay is M delay units, The duration of the second period is T3 time units, where T3 is the value of the difference between X minus the M, and X is the sum of the larger of the M and the minK0 and the N; or, the T3 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the ninth aspect, in some implementations of the ninth aspect, the scheduling DCI is used to instruct the terminal device to switch the state of the secondary cell in the sleep group, the first secondary cell belongs to the sleep group, and the BWP switches The delay includes one or more third handover delays, and the one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormant group,

In a tenth aspect, a communication apparatus is provided, including a transceiver unit and a processing unit: the transceiver unit is configured to send a scheduling DCI to a terminal device on a primary cell, where the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from dormant The state is switched to a non-sleep state; the processing unit is used to determine the time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or the time interval K2 between the PUSCH and the PUSCH according to the time delay of the BWP switching and the first information. The first period; wherein, the delay of the BWP handover includes the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N times unit, the first information is used to indicate that the terminal device does not have the PDSCH in minK0 time units after receiving the scheduled DCI and/or the PUSCH does not exist in minK2 time units, and the duration of the first period is T1 Time unit, the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

With reference to the tenth aspect, in some implementations of the tenth aspect, the BWP handover delay further includes a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay The duration of the handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y minus the value of the N. The value of the difference between the M and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the tenth aspect, in some implementations of the tenth aspect, the scheduling DCI is used to instruct the terminal device to switch the secondary cell in the dormant group from the dormant state to the non-dormant state, and the first secondary cell belongs to the dormant group , the BWP handover delay includes one or more third handover delays, and the one or more third handover delays are respectively the BWP handover delays of each secondary cell in the dormant group;

In an eleventh aspect, a communication apparatus is provided, including a transceiver unit and a processing unit: the transceiver unit is configured to send a scheduling DCI to a terminal device on the primary cell, where the scheduling DCI is used to indicate the terminal device's response to the first secondary cell The state of the first secondary cell includes a dormant state or a non-dormant state; the processing unit is configured to determine, according to the delay of the BWP handover and the first information, the first secondary cell within the first period after sending the scheduled DCI The cell does not transmit or receive reference signals; wherein, the delay of the BWP handover includes a first handover delay, and the first handover delay is the delay of the BWP handover of the first secondary cell, and the first handover delay The duration of the delay is N time units, and the first information is used to indicate that the terminal equipment does not exist within minK0 time units after receiving the scheduled DCI, and/or does not exist within minK2 time units of the PDSCH scheduled by the scheduled DCI For the PUSCH scheduled by the scheduling DCI, the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the larger value of the N and the minK2.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the BWP handover delay further includes a second handover delay, and the second handover delay is the BWP handover delay of the primary cell. The duration of the second switching delay is M time units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T1 is Y The value of the difference of the M is subtracted, and the Y is the sum of the larger one of the M and the minK2 and the N.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the scheduling DCI is used to instruct the terminal device to switch the state of a secondary cell in a sleep group, the first secondary cell belongs to the sleep group, and the The delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormancy group;

A twelfth aspect provides a communication apparatus, including a transceiver unit and a processing unit: the transceiver unit is configured to send a scheduling DCI to a terminal device on the primary cell, where the scheduling DCI is used to indicate the terminal device's response to the first secondary cell The state of the first secondary cell includes a dormant state and a non-dormant state; the processing unit is used to determine the second time period according to the delay of the BWP handover and the first information, and the first information is used to instruct the terminal device to receive The PDSCH scheduled by the scheduling DCI does not exist in minK0 time units after the scheduling DCI and/or the PUSCH scheduled by the scheduling DCI does not exist in minK2 time units; if the scheduling DCI is used to instruct the terminal device to use the first The secondary cell is switched from the dormant state to the non-dormant state, the transceiver unit is further configured to send the PDSCH or receive the PUSCH in the first secondary cell after a second period of time after sending the scheduling DCI; or, if the scheduling DCI is used for Instructing the terminal device to switch the first secondary cell from a non-sleep state to a sleep state, the transceiver unit is further configured to send a reference signal or receive a reference signal on the first secondary cell after a second period of time after sending the scheduled DCI reference signal.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the delay of the BWP handover is the first handover delay, and the first handover delay is the delay of the BWP handover of the first secondary cell, The duration of the first handover delay includes N time units, the duration of the second period is T2 time units, and the T2 is the larger value of the N and the minK0, or the T1 is the N and the minK0. The larger value of minK2.

With reference to the twelfth aspect, in some implementation manners of the twelfth aspect, the delay of the BWP handover includes a first handover delay and a second handover delay, and the first handover delay is a delay of the first secondary cell. BWP handover delay, the first handover delay is N time units, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay is M delays unit, the duration of the second period is T3 time units, the T3 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or, the T3 is The value of the difference between the M and the Y is the sum of the larger of the M and the minK2 and the N.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the scheduling DCI is used to instruct the terminal device to switch the state of the secondary cell in the sleep group, and the first secondary cell belongs to the a sleep group, the BWP handover delay includes one or more third handover delays, and the one or more third handover delays are respectively the BWP handover delays of each secondary cell in the sleep group,

In a thirteenth aspect, a communication apparatus is provided, including a processor. The processor is coupled to the memory and can be used to execute instructions in the memory, so as to implement the methods of the first aspect to the third aspect and any one of the possible implementations of the first aspect to the third aspect. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

In an implementation manner, the communication apparatus is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the communication device is a chip configured in the terminal device. When the communication device is a chip configured in the terminal device, the communication interface may be an input/output interface.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a fourteenth aspect, a communication apparatus is provided, including a processor. The processor is coupled to the memory, and can be used to execute the instructions in the memory, so as to implement the method of the fourth aspect to the sixth aspect and any possible implementation manner of the fourth aspect to the sixth aspect. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

In one implementation, the communication apparatus is a network device. When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the communication device is a chip configured in a network device. When the communication device is a chip configured in a network device, the communication interface may be an input/output interface.

A fifteenth aspect provides a processor, comprising: 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 can perform any one of the first to sixth aspects and the first to sixth aspects. method in the implementation.

In a specific implementation process, the above-mentioned 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. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter, and the input circuit and output The circuit can be the same circuit that acts as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.

A sixteenth aspect provides a processing apparatus including a processor and a memory. The processor is configured to read the instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter, so as to execute the first aspect to the sixth aspect and any possible implementation manner of the first aspect to the sixth aspect method in .

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

Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor. In the specific implementation process, the memory can be a non-transitory memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be separately set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting manner of the memory and the processor. It should be understood that the relevant data interaction process, such as sending indication information, may be a process of outputting indication information from the processor, and receiving capability information may be a process of receiving input capability information by the processor. Specifically, the data output by the processing can be output to the transmitter, and the input data received by the processor can be from the receiver. Among them, the transmitter and the receiver may be collectively referred to as a transceiver.

The processing device in the above-mentioned sixteenth aspect may be a chip, and the processor may be implemented by hardware or by software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software When implemented, the processor can be a general-purpose processor, which is realized by reading software codes stored in a memory, and the memory can be integrated in the processor or located outside the processor and exist independently.

A seventeenth aspect provides a computer program product, the computer program product comprising: a computer program (also referred to as code, or instructions), which, when the computer program is run, causes a computer to execute the above-mentioned first aspect to The sixth aspect and the method in any possible implementation manner of the first aspect to the sixth aspect.

In an eighteenth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium stores a computer program (also referred to as code, or instruction) when it runs on a computer, causing the computer to execute the above-mentioned first A method in any one possible implementation of the aspect to the sixth aspect and the first aspect to the sixth aspect.

In a nineteenth aspect, a communication system is provided, including the aforementioned terminal device and network device.

Description of drawings

FIG. 1 is a schematic structural diagram of a communication system applicable to an embodiment of the present application.

FIG. 2 is a schematic diagram of a process of BWP handover of a terminal device provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a BWP handover process of a secondary cell of a terminal device according to an embodiment of the present application.

FIG. 4 to FIG. 6 are schematic interaction diagrams of the communication method provided by the embodiment of the present application.

FIG. 7 shows a schematic diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 8 shows a schematic block diagram of a communication apparatus provided by another embodiment of the present application.

FIG. 9 shows a schematic diagram of a chip system provided by an embodiment of the present application.

detailed description

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

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5th Generation, 5G) mobile communication system or new wireless access Access technology (new radio access Technology, NR), sixth generation (6G) mobile communication system, or future evolved communication system. The 5G mobile communication system may include a non-standalone (NSA, NSA) and/or an independent network (standalone, SA).

The technical solutions of the embodiments of the present application can also be applied to satellite communication systems, high altitude platform station (HAPS) communication and other non-terrestrial network (NTN) systems, as well as various mobile systems integrated with satellite communication systems. Communication Systems.

The technical solutions provided in this application can also be applied to machine type communication (MTC), Long Term Evolution-machine (LTE-M), and device to device (D2D) networks. , Machine to Machine (M2M) network, Internet of Things (IoT) network or other network. The IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X may include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and vehicle Infrastructure (V2I) communication, vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.

In this embodiment of the present application, the network device may be any device with a wireless transceiver function. The device includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, For example, a baseband unit (BBU), or a distributed unit (distributed unit, DU), etc., or a base station in a future communication system, etc.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). CU implements some functions of gNB, and DU implements some functions of gNB. For example, CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer function. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer. AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, in this architecture, the higher-layer signaling, such as the RRC layer signaling, can also be considered to be sent by the DU. , or, sent by DU and AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.

The network equipment provides services for the cell, and the terminal equipment communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment, and the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to the small cell, where the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (femto cell), etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

In this embodiment of the present application, a terminal device may also be referred to as user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.

The terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, some examples of terminals can be: mobile phone (mobile phone), unmanned aerial vehicle, tablet computer (pad), computer with wireless transceiver function (such as notebook computer, PDA, etc.), mobile internet device (mobile internet device, MID) ), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, remote medical ), wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, Cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, Computing equipment or other processing equipment connected to a wireless modem, in-vehicle equipment, wearable equipment, terminal equipment in a 5G network or terminal equipment in a future evolved public land mobile network (PLMN), etc.

Among them, wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as various types of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In addition, the terminal device may also be a terminal device in an internet of things (Internet of things, IoT) system. IoT is an important part of the development of information technology in the future. Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things. IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.

In addition, terminal equipment can also include sensors such as smart printers, train detectors, and gas stations. The main functions include collecting data (part of terminal equipment), receiving control information and downlink data of network equipment, and sending electromagnetic waves to transmit uplink data to network equipment. .

FIG. 1 is a schematic structural diagram of a mobile communication system applicable to an embodiment of the present application. As shown in FIG. 1 , the mobile communication system 100 may include a network device 101 and at least one terminal device 102 . FIG. 1 is just a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 . The embodiments of the present application do not limit the number and specific types of network devices and terminal devices included in the mobile communication system.

In NR, the concept of BWP is introduced. A BWP is a continuous frequency resource on a cell carrier, and a network device can configure BWPs with different bandwidth sizes for different terminal devices. When a BWP is configured and activated, the BWP is called an active BWP, and the data and control information sent by the terminal device upstream or the data and control information received downstream will be limited to the active BWP.

Both NR and LTE support carrier aggregation (CA). During the CA process, the terminal device can simultaneously connect to multiple secondary cells ( The data is sent and received on the secondary cell, SCell), thus greatly improving the throughput of the cell and terminal equipment.

Before the terminal device uses the SCell to send and receive data, the base station first needs to send an SCell activation instruction to the terminal device. After the SCell has no data to send, the base station may send a deactivation instruction to instruct the SCell to deactivate. Only during the activation of the SCell, the terminal device can send and receive data on the SCell; during the deactivation of the SCell, since the terminal device does not need to send and receive data on the SCell, the terminal device can disable the PDCCH detection on the SCell to save power consumption.

Since the activation or deactivation of SCells takes a certain amount of time, in order to avoid the data transmission delay caused by frequent activation and deactivation of SCells, the base station may keep multiple SCells in the activated state for a long time. The PDCCH is detected on each SCell, so the power consumption overhead of the terminal device is too large.

To this end, the SCell dormancy mechanism (dormancy) is introduced in the NR R16 protocol, that is, when the SCell is activated, it can be in a dormant state or a non-dormancy state. When the SCell is in the non-sleep state, the SCell will be the same as the previous activated SCell, that is, the terminal device can normally detect the PDCCH on the SCell, and send and receive data; and when the SCell is in the dormant state, the terminal device will not be on the SCell. Detecting the PDCCH, so it will not send and receive data on the SCell. At this time, the terminal device will only receive some reference signals sent by the base station on the SCell, for example, channel state information reference signal (channel state information reference signal, CSI- RS). Therefore, when the SCell is in a dormant state, the power consumption of the terminal device can be saved.

The switching of the SCell between the dormant state and the non-dormant state can be completed through the switching indicated by the DCI received on the PCell, and the base station will configure a dormant BWP (dormant BWP) for the terminal device. Correspondingly, the base station configures a dormant BWP for the terminal device. The other BWPs are non-dormant BWPs (non-dormant BWPs).

In general, the DCI for scheduling data is called scheduling (scheduling) DCI. The DCI can be the DCI that schedules the terminal equipment to receive downlink PDSCH data, and its format can be DCI format 1_1, or it can be the DCI that schedules the terminal equipment to send uplink PUSCH data. DCI, its format can be DCI format 0_1. After receiving the above-mentioned scheduling DCI, the terminal device will switch between the dormant BWP and the non-dormant BWP according to the instruction of the scheduling DCI.

It should be understood that after the parsing of the scheduling DCI is completed, the scheduling DCI may or may not carry the dormancy/non-dormancy indication. When the scheduling DCI carries the dormancy/non-dormancy indication, the terminal device switches between the dormant BWP and the non-dormant BWP according to the indication. When the scheduling DCI does not carry the dormancy/non-dormancy indication, the terminal device schedules data according to the scheduling DCI. The scheduling DCIs in the following embodiments all carry dormancy/non-dormancy indications, which are used to instruct the terminal device to switch between dormant BWP and non-dormant BWP.

For example, when the terminal device receives the dormancy indication in the DCI, the terminal device will switch from the non-dormant BWP to the dormant BWP, and does not detect and schedule the PDCCH on the Scell, that is, the Scell is in a dormant state; when the terminal device receives the non-dormant BWP on the Pcell again When instructed by -dormancy, the terminal device will switch from dormant BWP back to non-dormant BWP.

It can be understood that a certain processing time is required to complete the BWP switching, and this processing time is called the BWP switching delay (T _{BWPswitchDelay} ). After receiving the scheduled DCI, the terminal device completes the BWP handover after a time delay. According to the different capabilities of the terminal equipment, NR defines two different time delay types, as shown in Table 1.

Table 1

Wherein, μ is a parameter set (numerology) index of the carrier transmitting PDCCH, and μ=0, 1, 2, and 3 correspond to the subcarrier spacing of the carrier transmitting PDCCH respectively 15 kHz, 30 kHz, 60 kHz, and 120 kHz.

FIG. 2 shows a schematic diagram of a terminal device switching BWPs.

Before the terminal device receives the scheduled DCI, the network device may configure a time domain resource allocation list (Time Domain Resource Allocation List) to the terminal device through the first information, where the time domain resource allocation list includes the scheduling DCI and the scheduled PDSCH or the scheduling DCI and the scheduled DCI The time offset between scheduled PUSCHs includes the time unit offset and the start symbol and length of the PDSCH or PUSCH within this time unit. The network device may configure multiple sets of time unit offset values for the terminal device, wherein minK0 and minK2 may be the minimum values in the set to which they belong, and both minK0 and minK2 are greater than or equal to zero. After receiving the first information, the terminal device performs related configuration. After the terminal device is configured, there is no PDSCH scheduled by the scheduled DCI within minK0 time units after receiving the scheduled DCI, that is, minK0 is the minimum PDSCH scheduling delay. There is no PUSCH scheduled by the scheduled DCI in minK2 time units after the DCI is scheduled, that is, minK2 is the minimum scheduling delay of the PUSCH.

Since there is no PDSCH scheduled by the scheduled DCI within minK0 time units after the terminal device receives the scheduled DCI, and there is no PUSCH scheduled by the scheduled DCI within minK2 time units after receiving the scheduled DCI, therefore when minK0 is greater than 0 In this case, the terminal device can extend the time of parsing and scheduling DCI to minK0 time units to save power consumption, wherein, the lengthening of the parsing time can be achieved by reducing the operating voltage of the chip, reducing the frequency of the crystal oscillator, etc. This application implements For example, this is not limited, that is to say, minK0 can be the terminal device parses and schedules DCI within minK0 time units; or when minK2 is greater than 0, the terminal device can extend the time for parsing and scheduling DCI to minK2 time The time processing of the unit to save power consumption, that is, minK2 can be the terminal device parses and schedules DCI and prepares to upload data within minK2 time.

As shown in Figure 2, the terminal device can switch BWP according to the following steps:

1) The terminal device receives the scheduled DCI, and parses out the handover instruction of the BWP within the parsing time of the DCI, and the parsing time may be minK0 time units.

Optionally, the terminal device may determine whether the DCI is a scheduling DCI according to the format of the received DCI.

2) The radio frequency device and baseband device in the terminal device are switched to the target BWP, which may include operations such as center frequency switching, sampling rate switching, and the like.

3) The terminal device applies the configuration parameters on the target BWP and works normally.

The handover delay between the dormant BWP and the non-dormant BWP may be referred to as the BWP handover delay of the secondary cell (T _{BWPswitchDelay, SCell} ). The definition of T _{BWPswitchDelay, SCell} is: Assuming that the terminal device receives the scheduled DCI carrying the dormancy indication on the PCell in the time slot n, the terminal device switches from the non-dormant BWP to the dormant BWP in the time slot n+T _{BWPswitchDelay} , and on the SCell Stop detecting the PDCCH; assuming that the terminal device receives the scheduled DCI carrying the non-dormancy indication on the PCell in the time slot n, the terminal device switches from the dormant BWP to the non-dormant BWP in the time slot n+T _{BWPswitchDelay} , and has the Ability to send PUSCH or receive PDSCH.

When the terminal device is configured in the CA scenario and the minK0 configured on the terminal device is greater than 0, the scheduling DCI may carry the dormancy/non-dormancy indication or not carry the dormancy/non-dormancy indication. If the scheduling DCI does not include the dormancy/non-dormancy indication The non-dormancy indicates that the terminal device can extend the parsing time of the DCI to the time processing of minK0/minK2 time units to save power consumption. However, if the scheduling DCI carries the dormancy/non-dormancy indication, once the parsing time of the DCI is lengthened, the terminal device cannot guarantee that the switching between dormant BWP and non-dormant BWP can be completed according to the time defined by the BWP switching delay. Therefore, in order to ensure that the handover between dormant BWP and non-dormant BWP is completed according to the time defined by the BWP handover delay, the terminal device cannot actually prolong the analysis time of the DCI, so the power saving gain cannot be obtained.

As shown in FIG. 3 , when the dormancy function of the SCell is not configured, or the non-dormancy indication is not carried in the DCI, the parsing time of the DCI can be greatly lengthened. When the dormancy function of the SCell is configured, if the terminal device needs to switch from the dormant BWP to the non-dormant BWP, it needs to be completed before the black box in Figure 3, so the terminal device cannot relax the PDCCH processing time on the PCell, that is It is not possible to lengthen the parsing time of DCI.

This application proposes a communication method. When the terminal device is configured with the dormancy function of the SCell and the minimum scheduling delay (minK0, minK2), the terminal device can complete the dormant BWP and non- Switching between dormant BWPs reduces power consumption to a certain extent.

The communication method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be understood that the following is only for the convenience of understanding and description, and the method provided by the embodiment of the present application is described in detail by taking the interaction between the terminal device and the network device as an example. However, this should not limit the execution subject of the method provided in this application. For example, the terminal device shown in the following embodiments may be replaced with a component (such as a chip or a chip system, etc.) configured in the terminal device. The network device shown in the following embodiments may also be replaced by a component (eg, a chip or a chip system, etc.) configured in the network device.

The embodiments shown below do not specifically limit the specific structure of the execution body 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 present application can be executed to execute the method provided by the embodiment of the present application. For example, the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute a program.

FIG. 4 is a schematic flowchart of a communication method 400 provided by an embodiment of the present application, shown from the perspective of device interaction. The method shown in FIG. 4 may include S410 and S420. Each step in the method 400 is described in detail below.

S410, the network device sends the scheduling DCI. Correspondingly, in S410, the terminal device receives the scheduled DCI.

Specifically, the network device sends the scheduling DCI to the terminal device on the primary cell. Accordingly, the terminal device receives the scheduled DCI on the primary cell.

The scheduling DCI is used to instruct the terminal device to switch the first secondary cell from a dormancy state (dormancy) to a non-dormancy state (non-dormancy). Specifically, the scheduling DCI may carry a non-dormancy indication, where the non-dormancy indication is used to instruct the terminal device to switch the first secondary cell from the dormant state to the non-dormancy state. It can be understood that, before the terminal device receives the scheduled DCI, the state of the first secondary cell is the sleep state.

It can be understood that when the terminal device is configured with the dormancy function of the first secondary cell, the network device can configure the terminal device with dormant BWP and non-dormant BWP, that is, when the current state of the first secondary cell is the dormant state, The terminal device currently uses dormant BWP, that is, dormant BWP is the activation BWP.

Therefore, the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from the dormant state to the non-dormant state, and it can also be understood that the scheduling DCI is used to instruct the terminal device to switch from the dormant BWP to the non-dormant BWP.

Optionally, the terminal device may be configured with multiple first secondary cells, and the dormancy function is activated on one or more of the multiple first secondary cells. In this case, the scheduling DCI may be used to indicate The terminal device switches the one or more first secondary cells with the dormancy function activated from the dormant state to the non-dormancy state.

Optionally, the terminal device may be configured with one or more dormancy groups, in which case the scheduling DCI may be used to instruct the terminal device to place all secondary cells in the one or more dormancy groups. Switch from sleep state to non-sleep state.

S420, the network device and the terminal device determine that K0 or K2 is not less than the first time period.

K0 is the time interval between scheduling the DCI and scheduling the PDSCH scheduled by the DCI, and K2 is the interval between the scheduling of the DCI and the scheduling of the PUSCH scheduled by the DCI. The terminal device and the network device may determine that K0 and K2 are not less than the first time period according to the time delay of the BWP handover and the first information. The first information may be used to indicate that the terminal device does not have a PDSCH scheduled for DCI scheduling within minK0 time units after receiving the scheduled DCI and/or does not have a PUSCH scheduled for DCI scheduling within minK2 time units. The time unit mentioned in the embodiments of this application may be a symbol (symbol), a time slot (slot), a sub-frame (sub-frame), a radio frame (frame), or a millisecond (ms), and the like.

This embodiment of the present application does not limit the duration of the first period of time.

In an implementation manner, the handover delay of the BWP includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N time units. The duration of the first period is T1 time units, and T1 may be determined according to at least one of minK0 and minK2 and the first switching delay.

Alternatively, T1 may be max(N, minK0), that is, T1 is the larger value of N and minK0.

Alternatively, T1 may be max(N, minK2), that is, T1 is the larger value of N and minK2.

In another implementation manner, the BWP handover delay may further include a second handover delay, the second handover delay is the BWP handover delay of the primary cell, and the second handover delay is M time units. In this case, T1 may be determined according to at least one of minK0 and minK2, N and M.

Optionally, T1 may be N+max(M, minK0)-M, that is, T1 is the value of the difference between X minus M, and X is the sum of the greater of M and minK0 and N.

Optionally, T1 may be N+max(M, minK2)-M, that is, T1 is the value of the difference between Y minus M, and Y is the sum of the greater of M and minK2 and N.

As mentioned above, the terminal device may be configured with one or more sleep groups, in which case the scheduling DCI may be used to instruct the terminal device to switch the secondary cells in the one or more sleep groups from the sleep state to the non-sleep state. For example, the scheduling DCI is used to instruct the terminal equipment to switch the secondary cells in a certain sleep group from the sleep state to the non-sleep state, the first secondary cell belongs to the sleep group, and the delay of the BWP handover may include one or more third handover times. The one or more third handover delays are respectively the delays of the BWP handover of each secondary cell in the dormant group. In this case, the terminal device may determine the maximum value among the one or more third handover delays as the first handover delay.

Optionally, before S420, the method 400 may further include: the network device sends the first information to the terminal device.

Optionally, before S420, the method 400 may further include: the terminal device sends second information to the network device, where the second information is used to indicate the time delay of the BWP handover.

Optionally, the terminal device and the network device may further determine that the reference signal is not sent and/or the reference signal is not received on the first secondary cell within the first period after the DCI is scheduled. The reference signal may be a sounding reference signal (sounding reference signal, SRS), or a channel state information reference signal (channel state information reference signal, CSI-RS).

It should be understood that if the working subcarrier intervals of the primary cell and the first secondary cell are different, the first handover delay and the time unit corresponding to minK0/minK2 are actually inconsistent. For example, the working sub-carrier spacing (denoted as μ ^PCell ) of the primary cell is 15KHz, and when the time unit corresponding to minK0/minK2 is a time slot, the duration of one time slot is 1 ms; the working sub-carrier spacing of the first secondary cell ( Denoted as μ ^SCell ) is 30KHz, and when the time unit corresponding to the first switching delay is a time slot, the duration of one time slot is 0.5ms. In this case, if the duration of the first period is calculated according to T1=max(N, minK0) or T1=max(N, minK2), an error will occur.

Therefore, in the case where the working subcarrier intervals of the primary cell and the first secondary cell are different, the time unit of minK0/minK2 can be converted into a time unit consistent with the first handover delay, then the duration of the first period can be as follows Calculated by the following formula:

It can be understood that the time unit corresponding to the first time period calculated according to any one of formulas (1) to (4) is consistent with the time unit of the first switching delay.

Among them, μ ^PCell and μ ^SCell can be determined from Table 2.

Table 2

μμ	子载波间隔/kHzSubcarrier spacing/kHz
00	1515
11	3030
22	6060
33	120120
44	240240

In the embodiment of the present application, the terminal equipment determines that K0 or K2 is not less than the first period, which is equivalent to the terminal equipment determining that within the first period after receiving the scheduling DCI, it does not need to receive the PDSCH and/or PDSCH scheduled by the scheduling DCI on the secondary cell Either the PUSCH is sent, or the reference signal is not sent and/or the reference signal is not received on the secondary cell. That is, the terminal device may switch from the dormant BWP to the non-dormant BWP within the first period after receiving the scheduled DCI.

The embodiment of the present application ensures that when the minK0/minK2 configured by the network device for the terminal device is greater than N, it is ensured that the terminal device can extend the time delay of the BWP handover of the secondary cell to minK0/minK2 time units, which relaxes the The analysis requirements of the terminal equipment's scheduling DCI in the BWP handover scenario of the secondary cell can save a certain degree of power consumption.

Alternatively, when the minK0/minK2 configured by the network device for the terminal device is greater than N, the time delay for the terminal device to switch the BWP of the secondary cell may be extended by max(M, minK0)-M or max(M, minK2)-M , to a certain extent, the analysis requirements of the terminal equipment's scheduling DCI in the BWP handover scenario of the secondary cell are relaxed, and a certain degree of power consumption can be saved.

FIG. 5 is a schematic flowchart of a communication method 500 provided by an embodiment of the present application, shown from the perspective of device interaction. The method shown in FIG. 5 may include S510 and S520. Each step in the method 500 is described in detail below.

S510, the network device sends the scheduling DCI. Correspondingly, in S510, the terminal device receives the scheduled DCI.

The scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, and the state of the first secondary cell includes a sleep state and a non-sleep state. Specifically, the scheduling DCI may carry a dormancy/non-dormancy indication, where the dormancy/non-dormancy indication is used to instruct the terminal device to switch the state of the first secondary cell.

For example, if the current state of the first secondary cell is the dormant state, the scheduling DCI may carry a non-dormancy indication to instruct the terminal device to switch the state of the first secondary cell from the dormant state to the non-dormancy state; The current state of the cell is a non-dormant state, and a dormancy indication may be carried in the scheduling DCI to instruct the terminal device to switch the state of the first secondary cell from the non-dormant state to the dormant state.

It can be understood that when the terminal device is configured with the dormancy function of the first secondary cell, the network device can configure dormant BWP and non-dormant BWP for the terminal device, that is, if the current state of the first secondary cell is the dormant state, the terminal device The dormant BWP is currently used, that is, the dormant BWP is the activated BWP; if the current state of the first secondary cell is the non-dormant state, the terminal device currently uses the non-dormant BWP, that is, the non-dormant BWP is the activated BWP.

Therefore, the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, and it can also be understood that the scheduling DCI is used to instruct the terminal device to switch between the dormant BWP and the non-dormant BWP. For example, if the terminal device currently uses dormant BWP, the scheduling DCI can carry a non-dormancy indication to instruct the terminal device to switch to non-dormant BWP; for another example, if the terminal device currently uses non-dormant BWP, the scheduling DCI can carry the non-dormancy indication. The dormancy indication is used to instruct the terminal device to switch to the dormant BWP.

Optionally, the terminal device may be configured with multiple first secondary cells, and the dormancy function is activated on one or more of the multiple first secondary cells. In this case, the scheduling DCI may be used to indicate The terminal device switches the state of one or more first secondary cells with the dormancy function activated.

Optionally, the terminal device may be configured with one or more dormancy groups, in which case, the scheduling DCI may be used to instruct the terminal device to monitor all secondary cells in the one or more dormancy groups. status is switched.

S520: The network device and the terminal device determine not to send a reference signal and/or not to receive a reference signal on the first secondary cell within a first period after the DCI is scheduled.

That is, the network device does not send a reference signal and/or does not receive a reference signal on the first secondary cell within the first period after sending the scheduled DCI; the terminal device does not send the reference signal on the first secondary cell within the first period after receiving the scheduled DCI reference signal and/or no reference signal is received. It can also be said that the terminal device does not expect to receive a reference signal and/or send a reference signal on the first secondary cell within the first period after receiving the scheduled DCI.

The terminal device and the network device may determine, according to the time delay of the BWP handover and the first information, not to send a reference signal and/or not to receive a reference signal on the first secondary cell within a first period after the DCI is scheduled. The first information may be used to indicate that the terminal device does not have a PDSCH scheduled for DCI scheduling within minK0 time units after receiving the scheduled DCI and/or does not have a PUSCH scheduled for DCI scheduling within minK2 time units.

In an implementation manner, the handover delay of the BWP includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N time units. The duration of the first period is a time unit of T1, and T1 may be determined according to at least one of minK0 and minK2 and the first switching delay.

As described above, the terminal device may be configured with one or more sleep groups, in which case, the scheduling DCI may be used to instruct the terminal device to switch the states of the secondary cells in the one or more sleep groups. For example, the scheduling DCI is used to instruct the terminal device to switch the state of a secondary cell in a certain sleep group, the first secondary cell belongs to the sleep group, and the delay of the BWP handover may include one or more third handover delays, one or more The plurality of third handover delays are respectively the delays of the BWP handover of each secondary cell in the sleep group. In this case, the terminal device may determine the maximum value among the one or more third handover delays as the first handover delay.

Optionally, before S520, the method 500 may further include: the network device sends the first information to the terminal device.

Optionally, before S520, the method 500 may further include: the terminal device sends second information to the network device, where the second information is used to indicate the time delay of the BWP handover.

Optionally, if the working subcarrier intervals of the primary cell and the first secondary cell are different, T1 may be calculated according to any one of the above formulas (1)-(4).

In this embodiment of the present application, the terminal device does not receive reference signals and/or does not transmit reference signals on the first secondary cell within the first time period after the scheduled DCI is scheduled. Therefore, the terminal device may receive the scheduled DCI within the first time period after the scheduled DCI is received. Switch from dormant BWP to non-dormant BWP, or from non-dormant BWP to dormant BWP.

When the minK0/minK2 configured by the network device for the terminal device is greater than N, ensure that the terminal device can extend the time delay of the BWP handover in the secondary cell to minK0/minK2 time units, which relaxes the BWP handover scenario in the secondary cell to a certain extent. A certain degree of power consumption can be saved by meeting the analysis requirements of the scheduling DCI of the terminal device.

FIG. 6 is a schematic flowchart of a communication method 600 provided by an embodiment of the present application, shown from the perspective of device interaction. The method shown in FIG. 6 may include S610 to S640. Each step in the method 600 is described in detail below.

S610, the network device sends the scheduling DCI. Correspondingly, in S610, the terminal device receives the scheduled DCI.

For the description of S610, reference may be made to the above description of S510, which is not described in detail here for brevity.

S620, the network device and the terminal device determine the second time period.

S630, the terminal device receives the PDSCH and/or sends the PUSCH on the first secondary cell.

Specifically, if the scheduled DCI is used to instruct the terminal device to switch the first secondary cell from the dormant state to the non-sleep state, after the second period of time after receiving the scheduled DCI, the terminal device is capable of receiving PDSCH and/or PDSCH on the first secondary cell. Or the ability to send PUSCH, that is, the terminal device starts to detect the PDCCH on the first secondary cell after receiving the second period of time after the scheduled DCI is received. It can be understood that, in the case where the terminal device has the capability of receiving PDSCH and/or sending PUSCH in the first secondary cell, the terminal device may also transmit and/or receive reference signals on the first secondary cell.

It can be understood that, after the terminal device receives the scheduled DCI, if the second time period does not arrive, the terminal device will not receive PDSCH and/or send PUSCH on the first secondary cell. For example, if the terminal device receives the scheduled DCI in time slot n, and the duration of the second time period is T time slots, the terminal device will not be in the first secondary cell from the nth time slot to the n+Tth time slot. Receive PDSCH and/or send PUSCH on the upper cell, and after the n+T th time slot, the terminal device has the capability of detecting and receiving PDSCH and/or sending PUSCH on the secondary cell.

S640, the terminal device receives a reference signal or sends a reference signal on the first secondary cell.

Specifically, if the scheduled DCI is used to instruct the terminal device to switch the first secondary cell from the non-sleep state to the sleep state, after the terminal device receives the second period of time after the scheduled DCI, it has the ability to receive the reference signal and the first secondary cell on the first secondary cell. /or the ability to transmit reference signals, or may receive reference signals and/or transmit reference signals on the first secondary cell.

It can be understood that, after the terminal device receives the scheduled DCI, if the second time period does not arrive, the terminal device will not receive the reference signal and/or send the reference signal on the first secondary cell. For example, if the terminal device receives the scheduled DCI in time slot n, and the duration of the second time period is T time slots, the terminal device will not be in the first secondary cell from the nth time slot to the n+Tth time slot. The terminal device may receive the reference signal and/or transmit the reference signal on the first secondary cell after the n+T th time slot.

The following describes the manner in which the network device and the terminal device determine the second time period:

The network device and the terminal device determine the second time period according to the delay of the BWP handover and the first information. The first information can indicate that the terminal device does not have the PDSCH scheduled by the scheduled DCI and the last minK2 time units within minK0 time units after receiving the scheduled DCI. There is no PUSCH scheduled for DCI scheduling within the time unit.

Optionally, before S620, the method 600 may further include: the network device sends the first information to the terminal device.

Optionally, before S620, the method 600 may further include: the terminal device sends second information to the network device, where the second information is used to indicate the time delay of the BWP handover.

Specifically, the network device and the terminal device may determine the second time period in the following ways:

method one:

The delay of the BWP handover is the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the duration of the first handover delay is N time units.

The duration of the second period may be T2 time units, and T2 may be determined according to at least one of minK0 and minK2 and the first switching delay.

Alternatively, T2 may be max(N, minK0), that is, T2 is the larger value of N and minK0.

Alternatively, T2 may be max(N, minK2), that is, T2 is the larger value of N and minK2.

Optionally, in the case that the working subcarrier intervals of the primary cell and the first secondary cell are inconsistent, T2 may be determined with reference to the above formula (1) or (2).

In this mode, since minK0/minK2 time units are the resolution time for scheduling DCI, and N time units are the time delay for BWP handover of the secondary cell, including the resolution time for scheduling DCI, in general, minK0/minK2 It is less than N, but in some special cases, the network device can configure minK0/minK2 for the terminal device to be greater than N. In this case, it is ensured that the terminal device can extend the time delay of the BWP handover of the secondary cell to minK0/minK2 A time unit, to a certain extent, relaxes the analysis requirements of the terminal equipment's scheduling DCI in the BWP handover scenario of the secondary cell, and can obtain a certain degree of power consumption saving.

Method two:

The delay of the BWP handover includes the first handover delay and the second handover delay. The first handover delay is the delay of the BWP handover of the first secondary cell. The length of the first handover delay is N time units. The handover delay is the delay of the BWP handover of the primary cell, and the duration of the second handover delay is M and time units.

The duration of the second period may be T3 time units, and T3 may be determined according to at least one of minK0 and minK2 and the first handover delay.

Optionally, T3 may be N+max(M, minK0)-M, that is, T3 is the value of the difference between X minus M, and X is the sum of the larger of M and minK0 and N.

Optionally, T3 may be N+max(M, minK2)-M, that is, T3 is the value of the difference between Y minus M, and Y is the sum of the greater of M and minK2 and N.

In this manner, the time delay for the terminal equipment to switch the BWP of the secondary cell is actually extended by Δt, and Δt=max(M, minK0)-M, or Δt=max(M, minK2)-M. Therefore, when the minK0/minK2 configured by the network device for the terminal device is greater than N, Δt > 0, which relaxes the analysis requirements of the terminal device's scheduling DCI in the BWP handover scenario of the secondary cell to a certain extent, and can obtain a certain degree of Power saving.

Optionally, in the case that the working subcarrier intervals of the primary cell and the first secondary cell are inconsistent, T3 may be determined with reference to the above formula (3) or (4).

As described above, the terminal device may be configured with one or more sleep groups, and in this case, the scheduling DCI may be used to instruct the terminal device to switch the states of the secondary cells in the one or more sleep groups. For example, the scheduling DCI is used to instruct the terminal device to switch the state of a secondary cell in a certain sleep group, the first secondary cell belongs to the sleep group, and the delay of the BWP handover may include one or more third handover delays, one or more The plurality of third handover delays are respectively the delays of the BWP handover of each secondary cell in the sleep group. In this case, the terminal device may determine the maximum value among the one or more third handover delays as the first handover delay.

The method of the embodiment of the present application is described in detail above with reference to FIGS. 4 to 6 , and the apparatus of the embodiment of the present application is described in detail below with reference to FIGS. 7 to 9 . It should be noted that the apparatuses shown in FIG. 7 to FIG. 9 can implement each step in the above method, which is not repeated here for brevity.

FIG. 9 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application. As shown in FIG. 9 , the communication apparatus 2000 may include a processing unit 2100 and a transceiver unit 2200 .

In a possible design, the communication apparatus 2000 may correspond to the terminal device in the above method embodiments, for example, may be a terminal device, or a component (such as a chip or a chip system, etc.) configured in the terminal device.

It should be understood that the communication apparatus 2000 may correspond to the terminal equipment in the method 400 to the method 600 according to the embodiment of the present application, and the communication apparatus 2000 may include a terminal for executing the method 400 in FIG. 4 to the method 600 in FIG. 6 . The unit of the method performed by the device. In addition, each unit in the communication apparatus 2000 and the above-mentioned other operations and/or functions are respectively to implement the corresponding processes in the method 400 in FIG. 4 to the method 600 in FIG. 6 . It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

It should also be understood that when the communication device 2000 is a chip configured in a terminal device, the transceiver unit 2200 in the communication device 2000 can be implemented through an input/output interface, and the processing unit 2100 in the communication device 2000 can be implemented through the chip or the chip The implementation of the processor, microprocessor or integrated circuit integrated on the system.

In another possible design, the communication apparatus 2000 may correspond to the network device in the above method embodiments, for example, may be a network device, or a component (such as a chip or a system of chips, etc.) configured in the network device.

It should be understood that the communication apparatus 2000 may correspond to the network equipment in the method 400 to the method 600 according to the embodiment of the present application, and the communication apparatus 2000 may include a network for performing the method 400 in FIG. 4 to the method 600 in FIG. 6 . The unit of the method performed by the device. In addition, each unit in the communication apparatus 2000 and the above-mentioned other operations and/or functions are respectively to implement the corresponding processes in the method 400 in FIG. 4 to the method 600 in FIG. 6 . It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

It should also be understood that when the communication apparatus 2000 is a chip configured in a network device, the transceiver unit 2200 in the communication apparatus 2000 may be implemented through an input/output interface, and the processing unit 2100 in the communication apparatus 2000 may be implemented through the chip or the chip The implementation of the processor, microprocessor or integrated circuit integrated on the system.

FIG. 8 is a schematic block diagram of a communication apparatus according to another embodiment of the present application. The communication apparatus 3000 shown in FIG. 7 may include: a memory 3100 , a processor 3200 , and a communication interface 3300 . The memory 3100, the processor 3200, and the communication interface 3300 are connected through an internal connection path, the memory 3100 is used to store instructions, and the processor 3200 is used to execute the instructions stored in the memory 3100 to control the input/output interface 3000 to receive/send Configuration information of the first neural network or configuration information of the second neural network. Optionally, the memory 3100 may be coupled with the processor 3200 through an interface, or may be integrated with the processor 3200 .

It should be noted that, the above-mentioned communication interface 3300 uses a transceiver such as but not limited to a transceiver to implement communication between the communication device 3000 and other devices or communication networks. The above-mentioned communication interface 3300 may also include an input/output interface.

In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 3200 or an instruction in the form of software. The methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 3100, and the processor 3200 reads the information in the memory 3100, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

It should be understood that, in this embodiment of the present application, the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf 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, in this embodiment of the present application, the memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the processor may also include non-volatile random access memory. For example, the processor may also store device type information.

FIG. 8 is a schematic diagram of a chip system according to an embodiment of the present application. The chip system 4000 shown in FIG. 8 includes: a logic circuit 4100 and an input/output interface (input/output interface) 4200, the logic circuit is used for coupling with the input interface, and data is transmitted through the input/output interface (for example, a first neural network configuration information) to perform the method described in FIG. 4 .

An embodiment of the present application further provides a processing apparatus, including a processor and an interface, where the processor is configured to execute the method in any of the foregoing method embodiments.

It should be understood that the above-mentioned processing device may be one or more chips. For example, the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

It should be noted that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The aforementioned processors may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components . The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the present application, the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer is made to execute the steps shown in FIGS. 4 to 6 . The method performed by the terminal device and the network device respectively in the exemplary embodiment.

According to the method provided by the embodiment of the present application, the present application also provides a computer-readable storage medium, where the computer-readable storage medium stores program codes, and when the program codes are run on a computer, the computer is made to execute FIG. 4 to FIG. 4 . In the embodiment shown in 6, the methods performed by the terminal device and the network device respectively.

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the aforementioned terminal device and network device.

The network equipment in each of the above apparatus embodiments completely corresponds to the terminal equipment and the network equipment or terminal equipment in the method embodiments, and corresponding steps are performed by corresponding modules or units. For example, the communication unit (transceiver) performs the receiving or For the sending step, other steps except sending and receiving may be performed by a processing unit (processor). For functions of specific units, reference may be made to corresponding method embodiments. The number of processors may be one or more.

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware accomplish. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered 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 process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. 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. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

In the above embodiments, the functions of each functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it can 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 (programs). When the computer program instructions (programs) are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks, SSD)) etc.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and 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 execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method of communication, comprising:

The terminal device receives, on the primary cell, scheduling downlink control information DCI sent by the network device, where the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from a sleep state to a non-sleep state;

The terminal device determines the time interval K0 between the scheduling DCI and the physical downlink shared channel PDSCH scheduled by the scheduling DCI or the time between the physical uplink shared channel PUSCH according to the delay of the partial bandwidth BWP handover and the first information The interval K2 is not less than the first period; wherein, the delay of the BWP handover includes the first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the first handover delay The duration of the delay is N time units, and the first information is used to indicate that the terminal device does not exist within minK0 time units after receiving the scheduled DCI and/or does not exist within minK2 time units. For the PUSCH, the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the larger of the N and the minK2 value of one side.
The method according to claim 1, wherein the delay of the BWP handover further comprises a second handover delay, and the second handover delay is the delay of the BWP handover of the primary cell, and the first handover delay The duration of the second handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; Alternatively, the T1 is a value obtained by subtracting the difference of the M from the Y, and the Y is the sum of the larger one of the M and the minK2 and the N.
The method according to claim 1 or 2, wherein the scheduling DCI is used to instruct the terminal device to switch the secondary cells in the dormant group from a dormant state to a non-dormant state, and the first secondary cell belongs to the In the dormant group, the delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the time of the BWP handover of each secondary cell in the dormant group extend;

The method also includes:

The terminal device determines a maximum value of the one or more third handover delays as the first handover delay.
A method of communication, comprising:

The terminal device receives the scheduling downlink control information DCI sent by the network device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, where the state of the first secondary cell includes a sleep state or a state of non-sleep state;

The terminal device determines, according to the delay of the partial bandwidth BWP handover and the first information, not to send a reference signal or not to receive a reference signal on the first secondary cell within a first period of time after receiving the scheduled DCI; wherein the The delay of the BWP handover includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, the duration of the first handover delay is N time units, and the The first information is used to indicate that the physical downlink shared channel PDSCH scheduled by the scheduling DCI does not exist within minK0 time units after the terminal device receives the scheduling DCI and/or the scheduling DCI does not exist within minK2 time units The scheduled physical uplink shared channel PUSCH, the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the N and the minK0. The larger value of minK2.
The method according to claim 4, wherein the delay of the BWP handover further comprises a second handover delay, and the second handover delay is the delay of the BWP handover of the primary cell, and the first handover delay The duration of the second handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; Alternatively, the T1 is a value obtained by subtracting the difference of the M from the Y, and the Y is the sum of the larger one of the M and the minK2 and the N.
The method according to claim 4 or 5, wherein the scheduling DCI is used to instruct the terminal device to switch states of secondary cells in a sleep group, and the first secondary cell belongs to the sleep group, The delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the delay of the BWP handover of each secondary cell in the sleep group;

The method also includes:

The terminal device determines a maximum value of the one or more third handover delays as the first handover delay.
A method of communication, comprising:

The terminal device receives the scheduling downlink control information DCI sent by the network device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, where the state of the first secondary cell includes a sleep state and non-sleep state;

The terminal device determines the second time period according to the delay of the partial bandwidth BWP handover and the first information, where the first information is used to indicate that the terminal device does not exist within minK0 time units after receiving the scheduled DCI. The physical downlink shared channel PDSCH scheduled by the scheduling DCI and/or the physical uplink shared channel PUSCH scheduled by the scheduling DCI does not exist within minK2 time units;

If the scheduled DCI is used to instruct the terminal device to switch the first secondary cell from the dormant state to the non-sleep state, the terminal device has a second time period after receiving the scheduled DCI to have the first secondary cell in the first secondary cell. The capability of receiving the PDSCH or sending the PUSCH on a secondary cell; or,

If the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from the non-sleep state to the dormant state, the terminal device will perform a A reference signal is received or sent on a secondary cell.
The method according to claim 7, wherein the BWP handover delay is a first handover delay, the first handover delay is a BWP handover delay of the first secondary cell, and the The duration of the first switching delay is N time units, the duration of the second period is T2 time units, and the T2 is the larger value of the N and the minK0, or the T2 is all The value of the larger of the above N and the above minK2.
The method according to claim 7, wherein the delay of the BWP handover includes a first handover delay and a second handover delay, and the first handover delay is the BWP handover of the first secondary cell The delay of the first handover delay is N time units, the second handover delay is the delay of the BWP handover of the primary cell, and the duration of the second handover delay is M Delay unit, the duration of the second time period is T3 time units, the T3 is the value of the difference between X minus the M, and the X is the greater of the M and the minK0 and the The sum of N; or, the T3 is a value of Y minus the difference of the M, and the Y is the sum of the larger one of the M and the minK2 and the N.
The method according to any one of claims 7 to 9, wherein the scheduling DCI is used to instruct the terminal device to switch states of secondary cells in the sleep group, and the first secondary cell belongs to the In the dormant group, the delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the time of the BWP handover of each secondary cell in the dormant group extension,

The method also includes:

The terminal device determines a maximum value of the one or more third handover delays as the first handover delay.
A method of communication, comprising:

The network device sends scheduling downlink control information DCI to the terminal device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from a sleep state to a non-sleep state;

The network device determines the time interval K0 between the scheduling DCI and the physical downlink shared channel PDSCH scheduled by the scheduling DCI or the time between the physical uplink shared channel PUSCH according to the delay of the partial bandwidth BWP handover and the first information The interval K2 is not less than the first period; wherein, the delay of the BWP handover includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the first handover delay The duration of the delay is N time units, and the first information is used to indicate that the terminal device does not exist within minK0 time units after receiving the scheduled DCI and/or does not exist within minK2 time units. For the PUSCH, the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the larger of the N and the minK2 value of one side.
The method according to claim 11, wherein the delay of the BWP handover further comprises a second handover delay, the second handover delay is the delay of the BWP handover of the primary cell, and the first handover delay The duration of the second handover delay is M delay units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; Alternatively, the T1 is a value obtained by subtracting the difference of the M from the Y, and the Y is the sum of the larger one of the M and the minK2 and the N.
The method according to claim 11 or 12, wherein the scheduling DCI is used to instruct the terminal device to switch the secondary cells in the dormant group from a dormant state to a non-dormant state, and the first secondary cell belongs to the In the dormant group, the delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the time of the BWP handover of each secondary cell in the dormant group extend;

The method also includes:

The network device determines a maximum value among the one or more third handover delays as the first handover delay.
A method of communication, comprising:

The network device sends scheduling downlink control information DCI to the terminal device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, where the state of the first secondary cell includes a sleep state or a non-reactive state. sleep state;

The network device determines, according to the delay of the partial bandwidth BWP handover and the first information, not to send a reference signal or not to receive a reference signal on the first secondary cell within a first period after sending the scheduled DCI; wherein the The delay of the BWP handover includes a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, the duration of the first handover delay is N time units, and the The first information is used to indicate that the physical downlink shared channel PDSCH scheduled by the scheduling DCI does not exist within minK0 time units after the terminal device receives the scheduling DCI and/or the scheduling DCI does not exist within minK2 time units The scheduled physical uplink shared channel PUSCH, the duration of the first period is T1 time units, and the T1 is the larger value of the N and the minK0, or the T1 is the N and the minK0. The larger value of minK2.
The method according to claim 14, wherein the delay of the BWP handover further comprises a second handover delay, and the second handover delay is the delay of the BWP handover of the primary cell, and the first handover delay The duration of the second handover delay is M time units, the T1 is the value of the difference between X minus the M, and the X is the sum of the larger one of the M and the minK0 and the N; or , the T1 is the value of Y minus the difference of the M, and the Y is the sum of the larger one of the M and the minK2 and the N.
The method according to claim 14 or 15, wherein the scheduling DCI is used to instruct the terminal device to switch states of secondary cells in a sleep group, and the first secondary cell belongs to the sleep group, The delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the delay of the BWP handover of each secondary cell in the sleep group;

The method also includes:

The network device determines a maximum value among the one or more third handover delays as the first handover delay.
A method of communication, comprising:

The network device sends scheduling downlink control information DCI to the terminal device on the primary cell, where the scheduling DCI is used to instruct the terminal device to switch the state of the first secondary cell, where the state of the first secondary cell includes a dormant state and a non-active state. sleep state;

The network device determines the second time period according to the delay of the partial bandwidth BWP handover and the first information, where the first information is used to indicate that the terminal device does not exist within minK0 time units after receiving the scheduled DCI. The physical downlink shared channel PDSCH scheduled by the scheduling DCI and/or the physical uplink shared channel PUSCH scheduled by the scheduling DCI does not exist within minK2 time units;

If the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from the dormant state to the non-dormant state, the network device will send the The secondary cell sends the PDSCH or receives the PUSCH; or,

If the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from the non-sleep state to the dormant state, the network device sends the scheduled DCI in the second time period after sending the scheduled DCI. A reference signal is sent or received on a secondary cell.
The method according to claim 17, wherein the delay of the BWP handover is a first handover delay, the first handover delay is the delay of the BWP handover of the first secondary cell, and the The duration of the first switching delay includes N time units, the duration of the second period is T2 time units, and the T2 is the larger value of the N and the minK0, or the T1 is The value of the larger of the N and the minK2.
The method according to claim 17, wherein the delay of the BWP handover includes a first handover delay and a second handover delay, and the first handover delay is the BWP handover of the first secondary cell The delay of the first handover delay is N time units, the second handover delay is the delay of the BWP handover of the primary cell, and the duration of the second handover delay is M Delay unit, the duration of the second time period is T3 time units, the T3 is the value of the difference between X minus the M, and the X is the greater of the M and the minK0 and the The sum of N; or, the T3 is a value of Y minus the difference of the M, and the Y is the sum of the larger one of the M and the minK2 and the N.
The method according to any one of claims 17 to 19, wherein the scheduling DCI is used to instruct the terminal device to switch states of secondary cells in the sleep group, and the first secondary cell belongs to the In the dormant group, the delay of the BWP handover includes one or more third handover delays, and the one or more third handover delays are respectively the time of the BWP handover of each secondary cell in the dormant group extension,

The method also includes:

The network device determines a maximum value among the one or more third handover delays as the first handover delay.
A communication device, characterized by comprising means for implementing the method according to any one of claims 1 to 10.
A communication device, characterized by comprising a unit for implementing the method according to any one of claims 11 to 20.
A communication device, comprising:

A processor for executing computer instructions stored in the memory to cause the apparatus to perform: the method of any one of claims 1 to 10.
A communication device, comprising:

A processor for executing computer instructions stored in the memory to cause the apparatus to perform: the method of any one of claims 10 to 20.
A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed, the method according to any one of claims 1 to 20 is performed.
A communication system, characterized in that, the network system comprises the communication device according to claim 21 or 23 and the communication device according to claim 22 or 24.