CN114071667A

CN114071667A - Communication method, communication device and system

Info

Publication number: CN114071667A
Application number: CN202010788232.3A
Authority: CN
Inventors: 周涵; 张战战; 铁晓磊; 黄雯雯
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2022-02-18
Also published as: WO2022028558A1

Abstract

The application provides a communication method, a communication device and a communication system. The method comprises the following steps: the terminal equipment receives DCI sent by the network equipment on the main cell, wherein the DCI is used for indicating the terminal equipment to switch the auxiliary cell from dormancy to non-dormancy; the terminal equipment determines that a time interval K0 from the DCI to the DCI scheduled PDSCH or a time interval K2 from the DCI to the PUSCH is not less than a first time period according to the time delay of the BWP switching and the first information; the BWP handover delay includes a first handover delay, where the first handover delay is a BWP handover delay of a secondary cell, a duration of the first handover delay is N time units, the first information is used to indicate that the terminal device does not have a PDSCH in minK0 time units and/or does not have a PUSCH in minK2 time units after receiving DCI, the duration of the first time period is T1 time units, and T1 is a larger value of N and minK0/minK 2.

Description

Communication method, communication device and system

Technical Field

The present application relates to the field of wireless communication, and in particular, to a communication method, a communication apparatus, and a communication system.

Background

Compared with a Long Term Evolution (LTE) system, the New Radio (NR) standard supports a larger transmission bandwidth, more transmit-receive antenna arrays, a higher transmission rate, and a more flexible and smaller-granularity scheduling mechanism. The above-mentioned characteristics of NR provide more applicability, but greatly increase the power consumption burden of the terminal device.

Power saving for end devices in the protocol of the third Generation Partnership Project (3 GPP) R16 prepares for the introduction of a cross-slot scheduling scheme, i.e. the network will configure the end devices with a minimum value of K0 and K2, and both K0 and K2 are greater than 0, called minK0 or minK 2. After the terminal device receives the configuration, the terminal device may consider that there is no Physical Downlink Shared Channel (PDSCH) scheduled by the scheduling DCI in minK0 time slots after receiving the scheduling Downlink Control Information (DCI), and there is no Physical Uplink Shared Channel (PUSCH) scheduled by the scheduling DCI in minK2 time slots after scheduling the DCI. Taking downlink scheduling as an example, the terminal device may lengthen the parsing time of the scheduling DCI to minK0 time slots, and does not buffer the received downlink data in the minK0 time slots. Because the available time for analyzing the DCI is prolonged, the terminal equipment can reduce the working frequency of the signal processing device to analyze the DCI, thereby achieving the purpose of reducing the power consumption.

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

Disclosure of Invention

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

In a first aspect, a method of communication is provided, including: the terminal equipment receives scheduling DCI sent by the network equipment on a main cell, wherein the scheduling DCI is used for indicating the terminal equipment to switch a first auxiliary cell from a dormant state to a non-dormant state; the terminal device determines that a time interval K0 between the scheduling DCI and the scheduled PDSCH of the scheduling DCI or a time interval K2 between the scheduling DCI and the PUSCH is not less than a first time period according to the time delay of the partial bandwidth part (BWP) switching and the first information; wherein the BWP handover delay comprises a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the PDSCH does not exist within minK0 time units and/or the PUSCH does not exist within minK2 time units after the terminal device receives the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of the N and the minK0, or the T1 is the value of the larger one of the N and the minK 2.

Based on the above technical solution, the terminal device determines that K0 or K2 is not less than the first time period, which is equivalent to the terminal device determining that, in the first time period after receiving the scheduling DCI, it is not necessary to receive the PDSCH scheduled by the scheduling DCI and/or transmit the PUSCH on the secondary cell, or it is not necessary to transmit the reference signal and/or receive the reference signal on the secondary cell. That is, the terminal device may switch from the dormant BWP to the non-dormant BWP within a first period of time after receiving the scheduling DCI.

Under the condition that the network device configures minK0/minK2 for the terminal device to be greater than N, the terminal device is ensured to prolong the time delay of the BWP switching of the secondary cell to minK0/minK2 time units, the analysis requirement of the scheduling DCI of the terminal device under the BWP switching scene of the secondary cell is relaxed to a certain extent, and a certain degree of power consumption saving can be obtained.

With reference to the first aspect, in certain implementations of the first aspect, the BWP handover delay further includes a second handover delay, where the second handover delay is a delay of BWP handover of the primary cell, a duration of the second handover delay is M delay elements, the T1 is a difference between X minus M, and X is a sum of the N and a larger one of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

Based on the above technical solution, when 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 lengthened by max (M, minK0) -M or max (M, minK2) -M, which relaxes the analysis requirement of the scheduling DCI of the terminal device in the BWP switching scenario of the secondary cell to a certain extent, and can obtain a certain degree of power consumption saving.

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

the method further comprises the following steps:

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 method of communication is provided, including: the terminal equipment receives scheduling DCI sent by the network equipment on the main cell, wherein the scheduling DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state or a non-dormant state; the terminal device determines not to transmit or receive a reference signal on the first secondary cell in a first period after receiving the scheduling DCI according to the BWP handover delay and the first information; wherein the BWP handover delay includes a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the terminal device does not have the PDSCH scheduled by the scheduling DCI within minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI within minK2 time units after receiving the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of N and minK0, or the T1 is the value of the larger one of N and minK 2.

Based on the above technical solution, the terminal device does not receive and/or transmit the reference signal on the first secondary cell in the first period after the scheduling DCI, and therefore, the terminal device may switch from the dormant BWP to the non-dormant BWP or from the non-dormant BWP to the dormant BWP in the first period after the scheduling DCI is received.

Under the condition that network equipment can enable the configuration of terminal equipment to be more than N according to minK0/minK2, the terminal equipment is ensured to be capable of prolonging the time delay of BWP switching of the secondary cell to minK0/minK2 time units, the analysis requirement of scheduling DCI of the terminal equipment under the BWP switching scene of the secondary cell is relaxed to a certain extent, and power consumption saving to a certain extent can be obtained.

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 a delay of BWP handover of the primary cell, the second handover delay has a duration of M delay elements, the T1 is a difference between X minus M, and X is a sum of the N and a larger one of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

With reference to the second aspect, in some implementations of the second aspect, the scheduling DCI is configured to instruct the terminal device to switch states of secondary cells in a dormant group, where the first secondary cell belongs to the dormant group, and the BWP handover delay includes one or more third handover delays, where the one or more third handover delays are delays of BWP handover of each secondary cell in the dormant group, respectively;

the method further comprises the following steps:

In a third aspect, a method of communication is provided, including: the terminal equipment receives scheduling DCI sent by the network equipment on the main cell, wherein the scheduling DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state and a non-dormant state; the terminal 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 PDSCH scheduled by the scheduling DCI does not exist in minK0 time units and/or the PUSCH scheduled by the scheduling DCI does not exist in minK2 time units after the terminal device receives the scheduling DCI; 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 terminal device has a capability of receiving the PDSCH or transmitting the PUSCH on the first secondary cell after receiving a second time period after the scheduling DCI; or, if the scheduling DCI is used to instruct the terminal device to switch the non-dormant state of the first secondary cell to the dormant state, the terminal device receives a reference signal or sends a reference signal on the first secondary cell after a second time period after receiving the scheduling DCI.

Based on the above technical solution, the network device configures the terminal device with the minimum scheduling delay (minK0, minK2), and the terminal device performs BWP handover with time delay, and the second time period can be determined according to the time delay and the minimum scheduling delay, so as to ensure a relaxed gain of DCI resolution time of the terminal device during BWP handover, and achieve the purpose of saving power consumption of the terminal device.

With reference to the third aspect, in certain implementations of the third aspect, the BWP handover delay is a first handover delay, the first handover delay is a BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the duration of the second period is T2 time units, the T2 is a value of the larger of the N and minK0, or the T2 is a value of the larger of the N and minK 2.

Based on the above technical solution, when the network device can configure the terminal device with minK0/minK2 larger than N, it is ensured that the terminal device can lengthen the BWP handover time delay of the secondary cell to minK0/minK2 time units, which relaxes the parsing requirement of the scheduling DCI of the terminal device in the BWP handover scenario of the secondary cell to a certain extent and can obtain a certain degree of power consumption saving.

With reference to the third aspect, in certain implementations of the third aspect, the BWP handover delay includes a first handover delay and a second handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the first handover delay is N time units long, the second handover delay is the BWP handover delay of the primary cell, the second handover delay is M time units long, the second period is T3 time units long, the T3 is a value of a difference between X minus M, the X is a sum of the N and a larger one of M and minK 0; alternatively, T3 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

Based on the above technical solution, the time delay for the terminal device to switch BWP of the secondary cell is actually lengthened by Δ t, and Δ t is max (M, minK0) -M or Δ t is max (M, minK2) -M. Therefore, when the network device configures minK0/minK2 for the terminal device to be greater than N, Δ t is greater than 0, the analysis requirement of the scheduling DCI of the terminal device in the BWP handover scene of the secondary cell is relaxed to a certain extent, and a certain power consumption saving can be obtained.

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 states of secondary cells in a dormant group, where the first secondary cell belongs to the dormant group, and the BWP handover delay includes one or more third handover delays, each of the one or more third handover delays being a delay of BWP handover of each secondary cell in the dormant group,

the method further comprises the following steps:

In a fourth aspect, a method of communication is provided, comprising: the network equipment sends scheduling DCI to the terminal equipment on the main cell, wherein the scheduling DCI is used for indicating the terminal equipment to switch the first auxiliary cell from the dormant state to the non-dormant state; the network device determines that a time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or a time interval K2 between the scheduling DCI and the PUSCH is not less than a first period according to the time delay of the BWP handover and the first information; wherein the BWP handover delay comprises a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the PDSCH does not exist within minK0 time units and/or the PUSCH does not exist within minK2 time units after the terminal device receives the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of the N and the minK0, or the T1 is the value of the larger one of the N and the minK 2.

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, the second handover delay is M delay elements in duration, the T1 is X minus the difference of M, X is the sum of the N and the larger of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

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

the method further comprises the following steps:

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

In a fifth aspect, a method for communication is provided, comprising: the network equipment sends scheduling DCI to the terminal equipment on the main cell, wherein the scheduling DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state or a non-dormant state; the network device determines not to transmit or receive a reference signal on the first secondary cell in a first period after the scheduling DCI is transmitted according to the BWP handover delay and the first information; wherein the BWP handover delay includes a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the terminal device does not have the PDSCH scheduled by the scheduling DCI within minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI within minK2 time units after receiving the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of N and minK0, or the T1 is the value of the larger one of N and minK 2.

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 has a duration of M time units, the T1 is X minus the difference of M, the X is the sum of the N and the larger of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

With reference to the fifth aspect, in some implementations of the fifth aspect, the scheduling DCI is configured to instruct the terminal device to switch states of secondary cells in a dormant group, where the first secondary cell belongs to the dormant group, and the BWP handover delay includes one or more third handover delays, where the one or more third handover delays are delays of BWP handover of each secondary cell in the dormant group, respectively;

the method further comprises the following steps:

In a sixth aspect, a method of communication is provided, comprising: the network equipment sends scheduling DCI to the terminal equipment on the main cell, wherein the scheduling DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises 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 does not have the PDSCH scheduled by the scheduling DCI in minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI; 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 transmits the PDSCH or receives a PUSCH in the first secondary cell after transmitting the scheduling DCI in a second time period; or, if the scheduling DCI is used to instruct the terminal device to switch the non-dormant state of the first secondary cell to the dormant state, the network device transmits or receives a reference signal on the first secondary cell after a second time period after the scheduling DCI is transmitted.

With reference to the sixth aspect, in some implementations of the sixth aspect, the BWP handover delay is a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the duration of the second period is T2 time units, the T2 is the value of the larger of the N and minK0, or the T1 is the value of the larger of the N and minK 2.

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, the first handover delay is the BWP handover delay of the first secondary cell, the first handover delay is N time units in duration, the second handover delay is the BWP handover delay of the primary cell, the second handover delay is M time units in duration, the second period is T3 time units in duration, the T3 is a value of a difference between X minus M, the X is a sum of the N and a larger one of M and minK 0; alternatively, T3 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the scheduling DCI is used to instruct the terminal device to switch states of secondary cells in a dormant group, the first secondary cell belongs to the dormant group, the BWP handover latency includes one or more third handover latencies, each of the one or more third handover latencies is a latency of BWP handover of each secondary cell in the dormant group,

the method further comprises the following steps:

In a seventh aspect, a communication device is provided, which includes a processing unit and a transceiver unit: the receiving and sending unit is configured to receive, on a primary cell, a scheduling DCI transmitted by a network device, where the scheduling DCI is used to instruct the terminal device to switch a first secondary cell from a dormant state to a non-dormant state; the processing unit is configured to determine, according to the first information and the delay of BWP handover, that a time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or a time interval K2 between the scheduling DCI and the PUSCH is not less than a first time period; wherein the BWP handover delay comprises a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the PDSCH does not exist within minK0 time units and/or the PUSCH does not exist within minK2 time units after the terminal device receives the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of the N and the minK0, or the T1 is the value of the larger one of the N and the minK 2.

With reference to the seventh aspect, in some implementations of the seventh aspect, the BWP handover delay further includes a second handover delay, where the second handover delay is a delay of BWP handover of the primary cell, a duration of the second handover delay is M delay elements, the T1 is a difference between X minus M, and X is a sum of the N and a larger one of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

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

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

In an eighth aspect, a communication device is provided, which includes a processing unit and a transceiver unit: the receiving and sending 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 a terminal device to switch a state of a first secondary cell, where 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 BWP handover delay and the first information, that no reference signal is transmitted or received on the first secondary cell in the first time period after receiving the scheduling DCI; wherein the BWP handover delay includes a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the terminal device does not have the PDSCH scheduled by the scheduling DCI within minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI within minK2 time units after receiving the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of N and minK0, or the T1 is the value of the larger one of N and minK 2.

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, the second handover delay has a duration of M delay elements, the T1 is X minus the difference of M, the X is the sum of the N and the larger of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

With reference to the eighth aspect, in some implementations of the eighth aspect, the scheduling DCI is configured to instruct the terminal device to switch states of secondary cells in a dormant group, where the first secondary cell belongs to the dormant group, and the BWP handover delay includes one or more third handover delays, where the one or more third handover delays are delays of BWP handover of each secondary cell in the dormant group, respectively;

In a ninth aspect, a communication device is provided, which includes a transceiver unit and a processing unit: the receiving and sending 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 a terminal device to switch a state of a first secondary cell, where the state of the first secondary cell includes a dormant state and a non-dormant state; the processing unit is configured to determine a second time period according to a BWP handover delay and first information, where the first information is used to indicate that the terminal device does not have the PDSCH scheduled by the scheduling DCI in minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI; 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 communication device has a capability of receiving the PDSCH or transmitting the PUSCH on the first secondary cell after receiving a second time period after the scheduling DCI; or, if the scheduling DCI is used to instruct the terminal device to switch the non-dormant state of the first secondary cell to the dormant state, the communication device receives a reference signal or transmits a reference signal on the first secondary cell after receiving a second time period after the scheduling DCI.

With reference to the ninth aspect, in some implementations of the ninth aspect, the BWP handover delay is a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the first handover delay is N time units long, the second period is T2 time units long, the T2 is the value of the larger of the N and the minK0, or the T2 is the value of the larger of the N and the minK 2.

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, the first handover delay is the BWP handover delay of the first secondary cell, the first handover delay is N time units in duration, the second handover delay is the BWP handover delay of the primary cell, the second handover delay is M time units in duration, the second period is T3 time units in duration, the T3 is a value of a difference between X minus M, the X is a sum of the N and a larger one of M and minK 0; alternatively, T3 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

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 states of secondary cells in a dormant group, the first secondary cell belongs to the dormant group, the BWP handover latency includes one or more third handover latencies, each of the one or more third handover latencies is a latency of BWP handover of each secondary cell in the dormant group,

In a tenth aspect, a communication apparatus is provided, which includes a transceiving unit and a processing unit: the receiving and sending unit is configured to send scheduling DCI to the terminal device in the primary cell, where 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 processing unit is configured to determine, according to the first information and the delay of BWP handover, that a time interval K0 between the scheduling DCI and the PDSCH scheduled by the scheduling DCI or a time interval K2 between the scheduling DCI and the PUSCH is not less than a first time period; wherein the BWP handover delay comprises a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the PDSCH does not exist within minK0 time units and/or the PUSCH does not exist within minK2 time units after the terminal device receives the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of the N and the minK0, or the T1 is the value of the larger one of the N and the minK 2.

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, the second handover delay is M delay elements in duration, the T1 is X minus the difference of M, the X is the sum of the N and the larger of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

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

In an eleventh aspect, a communication apparatus is provided, which includes a transceiver unit and a processing unit: the receiving and sending unit is configured to send scheduling DCI to the terminal device in the primary cell, where the scheduling DCI is used to instruct the terminal device to switch a state of a first secondary cell, and 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 BWP handover delay and the first information, that no reference signal is transmitted or no reference signal is received in the first secondary cell in the first time period after the scheduling DCI is transmitted; wherein the BWP handover delay includes a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information indicates that the terminal device does not have the PDSCH scheduled by the scheduling DCI within minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI within minK2 time units after receiving the scheduling DCI, the duration of the first time period is T1 time units, the T1 is the value of the larger one of N and minK0, or the T1 is the value of the larger one of N and minK 2.

With reference to the eleventh aspect, in certain implementations of the eleventh aspect, the time delay of the BWP handover further includes a second handover time delay, the second handover time delay is the time delay of the BWP handover of the primary cell, the duration of the second handover time delay is M time units, the T1 is a difference between X minus M, the X is a sum of the N and a larger one of M and minK 0; alternatively, T1 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

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

In a twelfth aspect, a communication device is provided, which includes a transceiver unit and a processing unit: the receiving and sending unit is configured to send scheduling DCI to the terminal device in the primary cell, where the scheduling DCI is used to instruct the terminal device to switch a state of a first secondary cell, and the state of the first secondary cell includes a dormant state and a non-dormant state; the processing unit is configured to determine a second time period according to a BWP handover delay and first information, where the first information is used to indicate that the terminal device does not have the PDSCH scheduled by the scheduling DCI in minK0 time units and/or does not have the PUSCH scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI; 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 transceiver unit is further configured to transmit the PDSCH or receive the PUSCH in the first secondary cell after a second time period after the scheduling DCI is transmitted; or, if the scheduling DCI is used to instruct the terminal device to switch the non-dormant state of the first secondary cell to the dormant state, the transceiver unit is further configured to transmit a reference signal or receive a reference signal on the first secondary cell after a second time period after the scheduling DCI is transmitted.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the BWP handover delay is a first handover delay, the first handover delay is the BWP handover delay 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, the T2 is the value of the larger of the N and the minK0, or the T1 is the value of the larger of the N and the minK 2.

With reference to the twelfth aspect, in certain implementations of the twelfth aspect, the BWP handover delay includes a first handover delay and a second handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the first handover delay is N time units in duration, the second handover delay is the BWP handover delay of the primary cell, the second handover delay is M time units in duration, the second period is T3 time units in duration, the T3 is a value of a difference between X minus M, the X is a sum of the N and a larger one of M and minK 0; alternatively, T3 is the difference between M and Y, which is the sum of N and the larger of M and minK 2.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the scheduling DCI is configured to instruct the terminal device to switch states of secondary cells in a dormant group, where the first secondary cell belongs to the dormant group, the BWP handover latency includes one or more third handover latencies, and each of the one or more third handover latencies is a latency of BWP handover of each secondary cell in the dormant group,

In a thirteenth aspect, a communication apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute instructions in the memory to implement the method in any of the possible implementations of the first to third aspects and the first to third aspects. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

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

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a fourteenth aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the method in any of the possible implementations of the fourth to sixth aspects and the fourth to sixth aspects described above. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

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

In a fifteenth aspect, a processor is provided, comprising: input circuit, output circuit and 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 performs the method in any one of the possible implementations of the first to sixth aspects and the first to sixth aspects.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be output to and transmitted by a transmitter, for example and without limitation, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In a sixteenth aspect, a processing apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory, and may receive a signal via the receiver and transmit a signal via the transmitter to perform the method of any one of the possible implementations of the first to sixth aspects and the first to sixth aspects.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor. In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips. It will be appreciated that the associated data interaction process, for example, sending the indication information, may be a process of outputting the indication information from the processor, and receiving the capability information may be a process of receiving the input capability information from the processor. In particular, the data output by the processor may be output to a transmitter and the input data received by the processor may be from a receiver. The transmitter and receiver may be collectively referred to as a transceiver, among others.

The processing device in the above sixteenth aspect may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In a seventeenth aspect, a computer program product is provided, the computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any one of the possible implementations of the first to sixth aspects and of the first to sixth aspects described above.

In an eighteenth aspect, a computer-readable storage medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any of the possible implementations of the first to sixth aspects and the first to sixth aspects described above.

In a nineteenth aspect, a communication system is provided, which includes the terminal device and the network device described above.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system suitable for use in embodiments of the present application.

Fig. 2 is a schematic diagram of a procedure of BWP handover of a terminal device according to an embodiment of the present application.

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

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

Fig. 7 shows a schematic diagram of a communication device provided in an embodiment of the present application.

Fig. 8 shows a schematic block diagram of a communication device provided in another embodiment of the present application.

Fig. 9 shows a schematic diagram of a chip system provided in an embodiment of the present application.

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a universal microwave access (WiMAX) communication system, a fifth Generation (5th Generation, 5G) mobile communication system or a new radio access Technology (NR), a sixth Generation (6G) mobile communication system, or a future Evolution communication system. The 5G mobile communication system may include a non-independent Network (NSA) and/or an independent network (SA), among others.

The technical scheme of the embodiment of the application can also be applied to non-terrestrial network (NTN) systems such as a satellite communication system, High Altitude Platform (HAPS) communication and the like, and various mobile communication systems fused with the satellite communication system.

The technical scheme provided by the application can also be applied to Machine Type Communication (MTC), Long Term Evolution-machine (LTE-M) communication between machines, device to device (D2D) network, machine to machine (M2M) network, internet of things (IoT) network, or other networks. The IoT network may comprise, for example, a car networking network. The communication modes in the car networking system are collectively referred to as car-to-other devices (V2X, X may represent anything), for example, the V2X may include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.

In the embodiment of the present application, the network device may be any device having a wireless transceiving function. Such devices include, but are not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home evolved Node B or home Node B, HNB), baseband unit (BBU), Access Point (AP) in wireless fidelity (WiFi) system, wireless relay Node, wireless backhaul Node, Transmission Point (TP) or Transmission and Reception Point (TRP), etc., and may also be 5G, such as NR, gbb in the system, or transmission point (TRP or TP), one or a group of base stations in the 5G system may also include multiple antennas, or panels, and may also be configured as network panels or NB, such as a baseband unit (BBU), or a Distributed Unit (DU), or a base station in a future communication system.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB, for example, the CU is responsible for processing non-real-time protocols and services, implementing Radio Resource Control (RRC), and implementing the function of a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or transmitted by the DU and the AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

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

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

The terminal device may be a device providing voice/data connectivity to a user, e.g. a handheld device, a vehicle mounted device, etc. with wireless connection capability. Currently, some examples of terminals may be: a mobile phone (mobile phone), an unmanned aerial vehicle (drone), a tablet computer (pad), a computer with wireless transceiving function (e.g., a laptop, a palmtop, etc.), a Mobile Internet Device (MID), a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation security), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol), a local telephone (SIP), a wireless local loop (SIP) phone, a personal loop (personal digital assistant), PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a Public Land Mobile Network (PLMN) for future evolution, etc.

Wherein, wearable equipment also can be called as wearing formula smart machine, is the general term of using wearing formula technique to carry out intelligent design, developing the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In addition, the terminal device may also be a terminal device in an internet of things (IoT) system. The IoT is an important component of future information technology development, and is mainly technically characterized in that articles are connected with a network through a communication technology, so that an intelligent network with man-machine interconnection and object interconnection is realized. The IoT technology can achieve massive connection, deep coverage, and power saving of the terminal through, for example, Narrowband (NB) technology.

In addition, the terminal equipment can also comprise sensors such as an intelligent printer, a train detector, a gas station and the like, and the main functions of the terminal equipment comprise data collection (part of the terminal equipment), control information and downlink data receiving of the network equipment, electromagnetic wave sending and uplink data transmission to the network equipment.

Fig. 1 is a schematic architecture diagram of a mobile communication system suitable for use in the embodiments 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 a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, 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 contiguous segment of frequency resources on a cell carrier, and a network device may configure BWPs of different bandwidth sizes for different terminal devices. When a BWP is configured and activated, the BWP is called active BWP, and the data and control information sent upstream or received downstream by the terminal device will be limited to the active BWP.

NR and LTE both support Carrier Aggregation (CA), and in the CA process, a terminal device may send and receive data on a base station of an original cell (generally referred to as a primary cell (PCell)) and also on multiple secondary cells (scells), thereby greatly improving throughput rates of the cells and the terminal device.

Before the terminal device transmits and receives data using the SCell, the base station first needs to transmit an instruction of SCell activation to the terminal device. After the SCell has no data to transmit, the base station may transmit a deactivation instruction to instruct the SCell to deactivate. Only during the activation of the SCell, the terminal equipment can transmit and receive data at the SCell; during the deactivation of the SCell, since the terminal device does not need to transmit and receive data on the SCell, the terminal device may turn off PDCCH detection on the SCell to achieve the purpose of saving power consumption.

Because a certain time is needed for activation or deactivation of the scells, in order to avoid data transmission delay caused by frequent activation and deactivation of the scells, the base station may keep a plurality of scells in an activated state for a long time, and at this time, the terminal device may need to detect a PDCCH on each SCell, so that power consumption overhead of the terminal device is too large.

For this reason, the protocol of NR R16 introduces an SCell dormant mechanism (dormant), i.e., the SCell may be in a dormant state or a non-dormant state after being activated. When the SCell is in the non-dormant state, the SCell will be the same as the previous activated SCell, i.e., the terminal device can normally detect the PDCCH on the SCell, and transmit and receive data; however, when the SCell is in the dormant state, the terminal device will not detect the PDCCH on the SCell, and therefore will not transmit and receive data on the SCell, and at this time, the terminal device will only receive some reference signals, e.g., channel state information reference signals (CSI-RS), transmitted by the base station on the SCell. Therefore, when the SCell is in the sleep state, power consumption of the terminal device can be saved.

The SCell may be switched between the dormant state and the non-dormant state through a handover indicated by DCI received on the PCell, and the base station configures one dormant BWP (dormant BWP) for the terminal device, and correspondingly, the other BWP configured for the terminal device by the base station is a non-dormant BWP (non-dormant BWP).

In general, the DCI of scheduling data is called scheduling (scheduling) DCI, and the DCI may be a DCI format in which a scheduling terminal device receives downlink PDSCH data, and may be in a format of DCI format 1_1, or a DCI format in which the scheduling terminal device transmits uplink PUSCH data, and may be in a format of DCI format 0_ 1. And after receiving the scheduling DCI, the terminal equipment switches 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 therapy/non-therapy indication. And when the scheduling DCI carries the dormant/non-dormant indication, the terminal equipment switches between dormant BWP and non-dormant BWP according to the indication, and when the scheduling DCI does not carry the dormant/non-dormant indication, the terminal equipment schedules data according to the scheduling DCI. The scheduling DCIs in the following embodiments all carry a dormant/non-dormant indication for instructing the terminal device to switch between dormant BWP and non-dormant BWP.

For example, when the terminal device receives the dormant indication in the DCI, the terminal device switches from non-dormant BWP to dormant BWP, and does not detect the scheduling PDCCH on the Scell, that is, the Scell is in a dormant state; when the terminal device receives the non-dormant indication again on the Pcell, the terminal device switches back from the dormant BWP to the non-dormant BWP.

It will be appreciated that a certain processing time is required to complete BWP handover, and this processing time is referred to as the latency (T) of BWP handover_{BWPswitchDelay}). After receiving the scheduling DCI, the terminal equipment passesAfter a time delay, the BWP handover is completed. NR defines two different time delay types according to the terminal device capabilities, as shown in table 1.

TABLE 1

Where μ is a parameter set (numerology) index of a carrier on which the PDCCH is transmitted, and μ is 0, and 1,2, and 3 correspond to subcarrier intervals of carriers on which the PDCCH is transmitted, respectively, of 15kHz, 30kHz, 60kHz, and 120 kHz.

Fig. 2 shows a schematic diagram of a terminal device switching BWP.

Before the terminal device receives the scheduling 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 a Time offset between the scheduling DCI and the scheduled PDSCH or between the scheduling DCI and the scheduled PUSCH, and the Time offset includes a Time unit offset and a starting symbol and a length of the PDSCH or the PUSCH in the Time unit. The network device may configure the terminal device with a plurality of sets of values of the time cell offset, where minK0 and minK2 may be the smallest values in their belonging sets, and both minK0 and minK2 are greater than or equal to zero. The terminal equipment receives the first information and then performs related configuration, after the terminal equipment is configured, the PDSCH scheduled by the scheduling DCI does not exist in minK0 time units after the scheduling DCI is received, namely minK0 is the minimum scheduling delay of the PDSCH, and the PUSCH scheduled by the scheduling DCI does not exist in minK2 time units after the scheduling DCI is received, namely minK2 is the minimum scheduling delay of the PUSCH.

Because there is no PDSCH scheduled by the scheduling DCI in the minK0 time units after the terminal device receives the scheduling DCI, and there is no PUSCH scheduled by the scheduling DCI in the minK2 time units after the terminal device receives the scheduling DCI, the terminal device may lengthen the time for analyzing the scheduling DCI to the time for processing in the minK0 time units to save power consumption when minK0 is greater than 0, wherein lengthening the analysis time may be implemented by reducing the chip operating voltage, reducing the crystal oscillator frequency, and the like, which is not limited in this application embodiment, that is, minK0 may be used for the terminal device to analyze the scheduling DCI in the minK0 time units; or in the case that minK2 is greater than 0, the terminal device may stretch the time to parse the scheduling DCI to a time processing of minK2 time units to save power consumption, that is, minK2 may be that the terminal device parses the scheduling DCI within minK2 time and prepares to upload data.

As shown in fig. 2, the terminal device may switch BWP according to the following steps:

1) the terminal device receives the scheduling DCI, and resolves the switching indication of the BWP within the resolution time of the DCI, wherein the resolution time can 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 switching of the radio frequency device and the baseband device in the terminal equipment to the target BWP may include operations such as center frequency switching, sampling rate switching, etc.

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

The latency of the handover between the dormant BWP and non-dormant BWP may be referred to as the latency of BWP handover of the secondary cell (T)_{BWPswitchDelay,SCell})。T_{BWPswitchDelay,SCell}Is defined as: assuming that the terminal device receives the scheduling DCI carrying the dormancy indication on the PCell at the time slot n, the terminal device receives the scheduling DCI at the time slot n + T_{BWPswitchDelay}Switching from non-dormant BWP to dormant BWP and stopping detecting PDCCH on SCell; assuming that the terminal device receives the scheduling DCI carrying the non-downlink indication on the PCell at the time slot n, the terminal device receives the scheduling DCI at the time slot n + T_{BWPswitchDelay}And switching from the dormant BWP to non-dormant BWP, and enabling the SCell to transmit PUSCH or receive PDSCH.

When the terminal device is configured in a CA scenario and minK0 configured by the terminal device is greater than 0, since the scheduling DCI may or may not carry a dormant/non-dormant indication, if the scheduling DCI does not include a dormant/non-dormant indication, the terminal device may lengthen 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 indication of therapy/non-therapy, once the parsing time of the DCI is lengthened, the terminal device cannot guarantee that the handover between therapy BWP and non-therapy BWP can be completed according to the BWP handover delay definition time. Therefore, to ensure that the switching between the dormant BWP and non-dormant BWP is completed according to the BWP switching delay definition time, the terminal device cannot actually lengthen the DCI parsing time, and thus cannot obtain power saving gain.

As shown in fig. 3, when the dormant function of the SCell is not configured, or the non-dormant indication is not carried in the DCI, the parsing time of the DCI may be greatly lengthened. However, after configuring the dormant function of the SCell, if the terminal device needs to switch from dormant BWP to non-dormant BWP, the switching needs to be completed before the black block in fig. 3, so the terminal device cannot relax the PDCCH processing time on the PCell, i.e., cannot lengthen the DCI resolution time.

The application provides a communication method, when the terminal device is configured with the dormant function of the SCell and the minimum scheduling delay (minK0, minK2), the terminal device can complete the switching between dormant BWP and non-dormant BWP in the first time period or the second time period, and the power consumption is reduced to a certain extent.

The method for communication 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 convenience of understanding and explanation, 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. This should not be construed as limiting the subject matter of the implementations of the methods provided herein. For example, the terminal device shown in the following embodiments may be replaced by a component (such as a chip or a chip system) configured in the terminal device. The network devices shown in the following embodiments may be replaced by components (such as chips or chip systems) configured in the network devices.

The embodiments shown below do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as the communication can be performed according to the method provided by the embodiments of the present application by running the program recorded with the codes of the method provided by the embodiments of the present application, for example, the execution subject of the method provided by the embodiments of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

Fig. 4 is a schematic flow chart diagram of a communication method 400 provided by an embodiment of the present application, shown from the perspective of device interaction. The method illustrated in fig. 4 may include S410 and S420. The various steps in method 400 are described in detail below.

S410, the network device transmits the scheduling DCI. Accordingly, in S410, the terminal device receives the scheduling DCI.

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

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

It is understood that in the case that the terminal device is configured with the dormant function of the first secondary cell, the network device may configure the dormant BWP and non-dormant BWP for the terminal device, that is, in the case that the current state of the first secondary cell is the dormant state, the terminal device currently uses dormant BWP, that is, the dormant BWP is active by the dormant 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, which can also be understood as scheduling DCI 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 a plurality of first secondary cells, and the dormant function is activated on one or more of the plurality of first secondary cells, in which case the scheduling DCI may be used to instruct the terminal device to switch the one or more first secondary cells activated with the dormant function from the dormant state to the non-dormant state.

Optionally, the terminal device may be configured with one or more dormant groups (dormant groups), in which case the scheduling DCI may be used to instruct the terminal device to switch all secondary cells in the one or more dormant groups from the dormant state to the non-dormant state.

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

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

The duration of the first time interval is not limited in the embodiment of the present application.

In one implementation, the BWP handover delay includes a first handover delay, where the first handover delay is a delay of BWP handover of the first secondary cell, and a 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 the first switching delay and at least one of minK0 and minK 2.

Alternatively, T1 may be max (N, minK0), i.e., T1 is the value of the larger of N and minK 0.

Alternatively, T1 may be max (N, minK2), i.e., T1 is the value of the larger of N and minK 2.

In another implementation, the BWP handover delay may further include a second handover delay, where the second handover delay is a delay of BWP handover of the primary cell, and the duration of the second handover delay is M time units. In this case, T1 can be determined from N and M, at least one of minK0 and minK 2.

Alternatively, T1 may be N + max (M, minK0) -M, i.e., T1 is the value of the difference of X minus M, X being the sum of N and the larger of M and minK 0.

Alternatively, T1 may be N + max (M, minK2) -M, i.e., T1 is the value of the difference of Y minus M, Y being the sum of N and the larger of M and minK 2.

As previously described, the terminal device may be configured with one or more dormant 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 dormant groups from a dormant state to a non-dormant state. For example, the scheduling DCI is used to instruct the terminal device to switch the secondary cells in a certain dormant group from a dormant state to a non-dormant state, the first secondary cell belongs to the dormant group, and the BWP handover delay may include one or more third handover delays, where the one or more third handover delays are delays of BWP handover of each secondary cell in the dormant group. In this case, the terminal device may determine a maximum value of 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: and the terminal equipment sends second information to the network equipment, wherein the second information is used for indicating the time delay of the BWP switching.

Optionally, the terminal device and the network device may further determine not to transmit and/or receive the reference signal on the first secondary cell in the first time period after the DCI is scheduled. The reference signal may be a Sounding Reference Signal (SRS) or a channel state information reference signal (CSI-RS).

It should be appreciated that if the working subcarrier spacing is different for the primary cell and the first secondary cell, the first handover delay is not actually identical to the time cell corresponding to minK0/minK 2. For example, the active subcarrier spacing (denoted as μ) of the primary cell^PCell) 15KHz, under the condition that the time unit corresponding to minK0/minK2 is a time slot, the duration of one time slot is 1 ms; working subcarrier spacing (denoted as μ) for first secondary cell^SCell) Is 30KHz, and the duration of one time slot is 0.5ms under the condition that the time unit corresponding to the first switching time delay is the time slot. In this case, if the time length of the first period is calculated according to T1 ═ max (N, minK0) or T1 ═ max (N, minK2), an error occurs.

Therefore, in the case that the working subcarrier spacing 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, and the duration of the first period can be calculated according to the following formula:

it is understood that the time unit corresponding to the first period calculated according to any one of equations (1) to (4) coincides with the time unit of the first switching delay.

Wherein, mu^PCellAnd mu^SCellAs can be determined from table 2.

TABLE 2

μ	Subcarrier spacing/kHz
		0	15
1	30
		2	60
3	120
		4	240

In this embodiment, the terminal device determines that K0 or K2 is not less than the first time period, which is equivalent to the terminal device determining that, in the first time period after receiving the scheduling DCI, it is not necessary to receive the PDSCH scheduled by the scheduling DCI and/or transmit the PUSCH on the secondary cell, or it is not necessary to transmit the reference signal and/or receive the reference signal 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 scheduling DCI.

The embodiment of the application ensures that when the network device configures minK0/minK2 for the terminal device to be greater than N, the terminal device can prolong the time delay of the BWP switching of the secondary cell to minK0/minK2 time units, so that the analysis requirement of the scheduling DCI of the terminal device in the BWP switching scene of the secondary cell is relaxed to a certain extent, and power consumption can be saved to a certain extent.

Or, when minK0/minK2 configured by the network device for the terminal device is greater than N, the time delay for the terminal device to switch BWP of the secondary cell may be lengthened by max (M, minK0) -M or max (M, minK2) -M, which relaxes the parsing requirement of the scheduling DCI of the terminal device in the BWP switching scenario of the secondary cell to some extent, and can obtain a certain degree of power consumption saving.

Fig. 5 is a schematic flow chart of a communication method 500 provided by an embodiment of the present application, shown from the perspective of device interaction. The method illustrated in fig. 5 may include S510 and S520. The various steps in method 500 are described in detail below.

S510, the network device transmits the scheduling DCI. Accordingly, in S510, the terminal device receives the scheduling DCI.

And the scheduling DCI is used for indicating the terminal equipment to switch the state of the first auxiliary cell, wherein the state of the first auxiliary cell comprises a dormant state and a non-dormant state. Specifically, the scheduling DCI may carry a dormant/non-dormant indication, where the dormant/non-dormant indication is used to indicate the terminal device to switch the state of the first secondary cell.

For example, if the current state of the first secondary cell is a dormant state, the scheduling DCI may carry a non-dormant indication, which is used to instruct the terminal device to switch the state of the first secondary cell from the dormant state to a non-dormant state; for another example, if the current state of the secondary cell is a non-dormant state, the scheduling DCI may carry a dormant indication, which is used 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, in the case that the terminal device is configured with the dormant function of the first secondary cell, the network device may configure the dormant BWP and the 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 currently uses the dormant BWP, that is, the dormant BWP is the active BWP; if the current state of the first secondary cell is the non-dormant state, the terminal device currently uses non-dormant BWP, that is, the non-dormant BWP is active BWP.

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

Optionally, the terminal device may be configured with a plurality of first secondary cells, and the dormant function is activated on one or more of the plurality of first secondary cells, in which case, the scheduling DCI may be used to instruct the terminal device to switch the state of the one or more first secondary cells in which the dormant function is activated.

Optionally, the terminal device may be configured with one or more dormant groups (dormant groups), in which case the scheduling DCI may be used to instruct the terminal device to switch the states of all secondary cells in the one or more dormant groups.

S520, the network device and the terminal device determine not to transmit and/or receive the reference signal in the first secondary cell in the first time period after the DCI is scheduled.

That is, the network device does not transmit and/or receive a reference signal on the first secondary cell in the first period after transmitting the scheduling DCI; the terminal device does not transmit and/or receive the reference signal on the first secondary cell in a first period after receiving the scheduling DCI. It can also be said that the terminal device does not expect to receive the reference signal and/or transmit the reference signal on the first secondary cell in the first time period after receiving the scheduling DCI.

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

In one implementation, the BWP handover delay includes a first handover delay, where the first handover delay is a delay of BWP handover of the first secondary cell, and a duration of the first handover delay is N time units. The first period is a time unit having a duration of T1, and T1 may be determined according to the first switching delay and at least one of minK0 and minK 2.

As described previously, the terminal device may be configured with one or more dormant groups, in which case the scheduling DCI may be used to instruct the terminal device to switch the status of the secondary cells in the one or more dormant groups. For example, the scheduling DCI is used to instruct the terminal device to handover the states of the secondary cells in a dormant group to which the first secondary cell belongs, and the BWP handover delay may include one or more third handover delays, where the one or more third handover delays are delays of BWP handover of each secondary cell in the dormant group. In this case, the terminal device may determine a maximum value of 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: and the terminal equipment sends second information to the network equipment, wherein the second information is used for indicating the time delay of the BWP switching.

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

In the embodiment of the present application, the terminal device does not receive the reference signal and/or does not transmit the reference signal on the first secondary cell in the first period after the DCI is scheduled, and therefore, the terminal device may switch from the dormant BWP to the non-dormant BWP or from the non-dormant BWP to the dormant BWP in the first period after the DCI is scheduled.

When the network device configures minK0/minK2 for the terminal device to be greater than N, it is ensured that the terminal device can prolong the BWP handover time delay of the secondary cell to minK0/minK2 time units, the parsing requirement of the scheduling DCI of the terminal device in the BWP handover scene of the secondary cell is relaxed to a certain extent, and a certain degree of power consumption saving can be obtained.

Fig. 6 is a schematic flow chart diagram of a communication method 600 provided by an embodiment of the present application, shown from the perspective of device interaction. The method illustrated in fig. 6 may include S610 to S640. The various steps in method 600 are described in detail below.

S610, the network device transmits the scheduling DCI. Accordingly, in S610, the terminal device receives the scheduling DCI.

For the description of S610, reference may be made to the above description of S510, and for brevity, detailed description is omitted here.

And S620, the network equipment and the terminal equipment determine a second time interval.

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

Specifically, 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, after the terminal device receives the scheduling DCI in the second time period, the terminal device has the capability of receiving the PDSCH and/or transmitting the PUSCH in the first secondary cell, that is, after the terminal device receives the scheduling DCI in the second time period, the terminal device starts to detect the PDCCH in the first secondary cell. It is to be understood that in the case that the terminal device is capable of receiving PDSCH and/or transmitting PUSCH on 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 scheduling DCI, if the second time period does not arrive, the terminal device may not receive the PDSCH and/or transmit the PUSCH on the first secondary cell. For example, the terminal device receives the scheduling DCI in the time slot n, and the duration of the second period is T time slots, then the terminal device does not receive the PDSCH and/or send the PUSCH on the first secondary cell between the nth time slot and the (n + T) th time slot, and after the (n + T) th time slot, the terminal device has the capability of detecting the reception of the PDSCH and/or sending the PUSCH on the secondary cell.

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

Specifically, if the scheduling DCI is used to instruct the terminal device to switch the first secondary cell from the non-dormant state to the dormant state, after the terminal device receives the scheduling DCI for the second time period, the terminal device has the capability of receiving the reference signal and/or transmitting the reference signal on the first secondary cell, or may receive the reference signal and/or transmit the reference signal on the first secondary cell.

It can be understood that, after the terminal device receives the scheduling DCI, if the second time period does not arrive, the terminal device may not receive the reference signal and/or transmit the reference signal on the first secondary cell. For example, the terminal device receives the scheduling DCI at time slot n, and the duration of the second period is T time slots, then the terminal device may not receive and/or transmit the reference signal on the first secondary cell between the nth time slot and the n + T time slot, and after the n + T time slot, the terminal device may receive and/or transmit the reference signal on the first secondary cell.

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

the network device and the terminal device determine the second time period according to the time delay of the BWP handover and the first information, where the first information may indicate that the terminal device does not have the PDSCH scheduled by the scheduling DCI in the minK0 time units after receiving the scheduling DCI and does not have the PUSCH scheduled by the scheduling DCI in the minK2 time units after receiving the scheduling DCI.

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: and the terminal equipment sends second information to the network equipment, wherein the second information is used for indicating the time delay of the BWP switching.

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

the first method is as follows:

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

The duration of the second period may be T2 time units, and T2 may be determined according to the first switching delay and at least one of minK0 and minK 2.

Alternatively, T2 may be max (N, minK0), i.e., T2 is the value of the larger of N and minK 0.

Alternatively, T2 may be max (N, minK2), i.e., T2 is the value of the larger of N and minK 2.

Alternatively, in the case where the subcarrier intervals at which the primary cell and the first secondary cell operate do not coincide, T2 may be determined with reference to the above equation (1) or (2).

In this way, since minK0/minK2 time units are the parsing time of the scheduling DCI, and N time units are the time delay of BWP handover of the secondary cell, including the parsing time of the scheduling DCI, in a general case, minK0/minK2 is smaller than N, but in some special cases, minK0/minK2 configured for the terminal device by the network device may be larger than N, in this case, it is ensured that the terminal device may extend the time delay of BWP handover of the secondary cell to minK0/minK2 time units, which relaxes the parsing requirement of the scheduling DCI of the terminal device in the BWP handover scenario of the secondary cell to a certain extent, and can achieve a certain degree of power consumption saving.

The second method comprises the following steps:

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

The duration of the second period may be T3 time units, and T3 may be determined according to the first switching delay and at least one of minK0 and minK 2.

Alternatively, T3 may be N + max (M, minK0) -M, i.e., T3 is the value of the difference of X minus M, X being the sum of N and the larger of M and minK 0.

Alternatively, T3 may be N + max (M, minK2) -M, i.e., T3 is the value of the difference of Y minus M, Y being the sum of N and the larger of M and minK 2.

In this manner, the time delay for the terminal device to switch BWP of the secondary cell is actually lengthened by Δ t, and Δ t is max (M, minK0) -M or Δ t is max (M, minK2) -M. Therefore, when the network device configures minK0/minK2 for the terminal device to be greater than N, Δ t is greater than 0, the analysis requirement of the scheduling DCI of the terminal device in the BWP handover scene of the secondary cell is relaxed to a certain extent, and a certain power consumption saving can be obtained.

Alternatively, in the case where the subcarrier intervals at which the primary cell and the first secondary cell operate do not coincide, T3 may be determined with reference to equation (3) or (4) above.

The method of the embodiment of the present application is described above in detail with reference to fig. 4 to 6, and the apparatus of the embodiment of the present application is described below in detail with reference to fig. 7 to 9. It should be noted that the apparatuses shown in fig. 7 to 9 can implement the steps in the above method, and are not described herein again for brevity.

Fig. 9 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 9, the communication device 2000 may include a processing unit 2100 and a transceiving unit 2200.

In a possible design, the communication device 2000 may correspond to the terminal device in the above method embodiment, and may be, for example, the terminal device or a component (e.g., a chip or a system of chips, etc.) configured in the terminal device.

It should be understood that the communication apparatus 2000 may correspond to a terminal device in the methods 400 to 600 according to the embodiments of the present application, and the communication apparatus 2000 may include a unit for performing the methods performed by the terminal device in the methods 400 to 600 in fig. 4 to 6. Also, the units and other operations and/or functions described above in the communication apparatus 2000 are respectively for implementing the corresponding flows in the methods 400 in fig. 4 to 600 in fig. 6. It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

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 may be implemented by an input/output interface, and the processing unit 2100 in the communication device 2000 may be implemented by a processor, a microprocessor, an integrated circuit, or the like integrated on the chip or a system of chips.

In yet another possible design, the communication apparatus 2000 may correspond to the network device in the above method embodiment, and may be, for example, a network device, or a component (e.g., a chip or a system-on-chip, etc.) configured in a network device.

It should be understood that the communication apparatus 2000 may correspond to the network device in the methods 400 to 600 according to the embodiments of the present application, and the communication apparatus 2000 may include units for performing the methods performed by the network device in the methods 400 to 600 in fig. 4 to 6. Also, the units and other operations and/or functions described above in the communication apparatus 2000 are respectively for implementing the corresponding flows in the methods 400 in fig. 4 to 600 in fig. 6. It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

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

Fig. 8 is a schematic block diagram of a communication device of another embodiment of the present application. The communication device 3000 shown in fig. 7 may include: memory 3100, processor 3200, and communication interface 3300. Wherein, the memory 3100, the processor 3200, the communication interface 3300 are connected through the internal connection path, the memory 3100 is used for storing the instruction, the processor 3200 is used for executing the instruction stored by the memory 3100, in order to control the input/output interface 3000 to receive/send the configuration information of the first neural network or the configuration information of the second neural network. Alternatively, memory 3100 may be coupled to processor 3200 through an interface or may be integrated with processor 3200.

The communication interface 3300 uses a transceiver such as, but not limited to, a transceiver to realize communication between the communication device 3000 and other devices or a communication network. The communication interface 3300 may also include an input/output interface (i/o interface).

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 3200. The method disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 3100, and the processor 3200 reads the information in the memory 3100 and performs the steps of the above method in combination with its hardware. To avoid repetition, it is not described in detail here.

It should be understood that in the embodiments of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other 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, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that in embodiments of the present application, the memory may comprise both read-only memory and random access memory, and may 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 information of the device type.

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: logic 4100 and an input/output interface (input/output interface)4200, the logic is configured to couple with the input interface and transmit data (e.g., configuration information of the first neural network) through the input/output interface to perform the method described in fig. 4.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the method of any of the above method embodiments.

It is to be understood that the processing means described above 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), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor described above may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being 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 further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the methods performed by the terminal device and the network device, respectively, in the embodiments shown in fig. 4 to 6.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable storage medium, which stores program codes, and when the program codes are run on a computer, the computer is caused to execute the methods respectively executed by the terminal device and the network device in the embodiments shown in fig. 4 to 6.

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

The network device in the foregoing device embodiments completely corresponds to the terminal device and the network device or the terminal device in the method embodiments, and the corresponding module or unit executes the corresponding steps, for example, the communication unit (transceiver) executes the steps of receiving or transmitting in the method embodiments, and other steps besides transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The number of the processors may be one or more.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on 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 can be a component. One or more components can reside within a process and/or thread of execution and a component can 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. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps (step) described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

In the above embodiments, the functions of the functional units may be fully or partially implemented by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). The procedures or functions described in accordance with the embodiments of the present application are generated in whole or in part when the computer program instructions (programs) are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., 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, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

the method comprises the steps that terminal equipment receives scheduling Downlink Control Information (DCI) sent by network equipment on a main cell, wherein the DCI is used for indicating the terminal equipment to switch a first auxiliary cell from a dormant state to a non-dormant state;

the terminal equipment determines that a time interval K0 from the scheduling DCI to a Physical Downlink Shared Channel (PDSCH) scheduled by the scheduling DCI or a time interval K2 from the scheduling DCI to a Physical Uplink Shared Channel (PUSCH) is not less than a first time period according to the time delay of the switching of the partial bandwidth BWP and the first information; wherein the BWP handover delay comprises a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information is used to indicate that the PDSCH does not exist in minK0 time units after the terminal device receives the scheduling DCI and/or the PUSCH does not exist in minK2 time units, the duration of the first time period is T1 time units, the T1 is the value of the larger one of N and minK0, or the T1 is the value of the larger one of N and minK 2.

2. The method of claim 1, wherein the BWP handover delay further comprises a second handover delay, the second handover delay being the BWP handover delay of the primary cell, the second handover delay being M delay elements in duration, the T1 being the difference of X minus the M, the X being the sum of the N and the larger of M and minK 0; alternatively, the T1 is a value obtained by subtracting the M from Y, which is the sum of the N and the larger one of the M and the minK 2.

3. The method of claim 1 or 2, wherein the scheduling DCI is configured to instruct the terminal device to switch a secondary cell in a dormant group from a dormant state to a non-dormant state, wherein the first secondary cell belongs to the dormant group, and wherein the BWP handover latency comprises one or more third handover latencies, which are latencies of BWP handover of each secondary cell in the dormant group, respectively;

the method further comprises the following steps:

and the terminal equipment determines the maximum value of the one or more third switching time delays as the first switching time delay.

4. A method of communication, comprising:

the method comprises the steps that terminal equipment receives scheduling Downlink Control Information (DCI) sent by network equipment on a main cell, wherein the DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state or a non-dormant state;

the terminal device determines not to send or receive a reference signal on the first secondary cell in a first time period after receiving the scheduling DCI according to the time delay of the partial bandwidth BWP switching and the first information; wherein, the BWP handover delay includes a first handover delay, where the first handover delay is a delay of BWP handover of the first secondary cell, a 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 of the physical downlink shared channel scheduled by the scheduling DCI in minK0 time units and/or does not have the PUSCH of the physical uplink shared channel scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI, the duration of the first time period is T1 time units, the T1 is a value of a larger one of the N and the minK0, or the T1 is a value of a larger one of the N and the minK 2.

5. The method of claim 4, wherein the BWP handover delay further comprises a second handover delay, the second handover delay being the BWP handover delay of the primary cell, the second handover delay being M delay elements in duration, the T1 being the difference of X minus the M, the X being the sum of the N and the larger of M and minK 0; alternatively, the T1 is a value obtained by subtracting the M from Y, which is the sum of the N and the larger one of the M and the minK 2.

6. The method of claim 4 or 5, wherein the scheduling DCI is configured to instruct the terminal device to switch the states of secondary cells in a dormant group, wherein the first secondary cell belongs to the dormant group, wherein the BWP handover delay comprises one or more third handover delays, and wherein the one or more third handover delays are delays of BWP handover of each secondary cell in the dormant group;

the method further comprises the following steps:

7. A method of communication, comprising:

the method comprises the steps that terminal equipment receives scheduling Downlink Control Information (DCI) sent by network equipment on a main cell, wherein the DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state and a non-dormant state;

the terminal device determines a second time period according to the time delay of the partial bandwidth BWP switching and first information, wherein the first information is used for indicating that the terminal device does not have the physical downlink shared channel PDSCH scheduled by the scheduling DCI in minK0 time units and/or does not have the physical uplink shared channel PUSCH scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI;

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 terminal device has a capability of receiving the PDSCH or transmitting the PUSCH on the first secondary cell after receiving a second time period after the scheduling DCI; or,

if the scheduling DCI is used for indicating the terminal equipment to switch the non-sleep state of the first auxiliary cell to the sleep state, the terminal equipment receives a reference signal or sends a reference signal on the first auxiliary cell after receiving a second time period after the scheduling DCI.

8. The method of claim 7, wherein the latency of the BWP handover is a first handover latency, wherein the first handover latency is a latency of a BWP handover of the first secondary cell, wherein a duration of the first handover latency is N time units, wherein a duration of the second period is T2 time units, wherein the T2 is a value of a larger one of the N and the minK0, or wherein the T2 is a value of a larger one of the N and the minK 2.

9. The method of claim 7, wherein the latency of the BWP handover comprises a first handover latency and a second handover latency, wherein the first handover latency is a latency of the BWP handover of the first secondary cell, wherein the first handover latency has a duration of N time units, wherein the second handover latency is a latency of the BWP handover of the primary cell, wherein the second handover latency has a duration of M time units, wherein the duration of the second period is T3 time units, wherein T3 is a value of a difference of X minus M, wherein X is a sum of N and a larger one of M and minK 0; alternatively, the T3 is a value obtained by subtracting the M from Y, which is the sum of the N and the larger one of the M and the minK 2.

10. The method according to any of claims 7 to 9, wherein the scheduling DCI is configured to instruct the terminal device to handover the status of secondary cells in a dormant group, wherein the first secondary cell belongs to the dormant group, wherein the latency of the BWP handover comprises one or more third handover latencies, which are latencies of BWP handover of each secondary cell in the dormant group respectively,

the method further comprises the following steps:

11. A method of communication, comprising:

the network equipment sends scheduling Downlink Control Information (DCI) to the terminal equipment on the main cell, wherein the DCI is used for indicating the terminal equipment to switch the first auxiliary cell from a dormant state to a non-dormant state;

the network equipment determines that a time interval K0 from the scheduling DCI to a Physical Downlink Shared Channel (PDSCH) scheduled by the scheduling DCI or a time interval K2 from the scheduling DCI to a Physical Uplink Shared Channel (PUSCH) is not less than a first time period according to the time delay of the switching of the partial bandwidth BWP and the first information; wherein the BWP handover delay comprises a first handover delay, the first handover delay is the BWP handover delay of the first secondary cell, the duration of the first handover delay is N time units, the first information is used to indicate that the PDSCH does not exist in minK0 time units after the terminal device receives the scheduling DCI and/or the PUSCH does not exist in minK2 time units, the duration of the first time period is T1 time units, the T1 is the value of the larger one of N and minK0, or the T1 is the value of the larger one of N and minK 2.

12. The method of claim 11, wherein the BWP handover delay further comprises a second handover delay, the second handover delay being the BWP handover delay of the primary cell, the second handover delay being M delay elements in duration, the T1 being the difference of X minus the M, the X being the sum of the N and the larger of M and minK 0; alternatively, the T1 is a value obtained by subtracting the M from Y, which is the sum of the N and the larger one of the M and the minK 2.

13. The method of claim 11 or 12, wherein the scheduling DCI is configured to instruct the terminal device to switch a secondary cell in a dormant group from a dormant state to a non-dormant state, wherein the first secondary cell belongs to the dormant group, and wherein the BWP handover latency comprises one or more third handover latencies, which are latencies of BWP handover of each secondary cell in the dormant group respectively;

the method further comprises the following steps:

14. A method of communication, comprising:

the method comprises the steps that network equipment sends scheduling Downlink Control Information (DCI) to terminal equipment on a main cell, wherein the DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state or a non-dormant state;

the network device determines not to transmit or receive a reference signal on the first secondary cell in a first period after the scheduling DCI is transmitted according to the time delay of the partial bandwidth BWP handover and the first information; wherein, the BWP handover delay includes a first handover delay, where the first handover delay is a delay of BWP handover of the first secondary cell, a 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 of the physical downlink shared channel scheduled by the scheduling DCI in minK0 time units and/or does not have the PUSCH of the physical uplink shared channel scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI, the duration of the first time period is T1 time units, the T1 is a value of a larger one of the N and the minK0, or the T1 is a value of a larger one of the N and the minK 2.

15. The method of claim 14, wherein the BWP handover delay further comprises a second handover delay, wherein the second handover delay is the BWP handover delay of the primary cell, wherein the second handover delay is M time units in duration, wherein T1 is X minus the difference of M, wherein X is the sum of N and the larger of M and minK 0; alternatively, the T1 is a value obtained by subtracting the M from Y, which is the sum of the N and the larger one of the M and the minK 2.

16. The method according to claim 14 or 15, wherein the scheduling DCI is used to instruct the terminal device to switch the states of the secondary cells in a dormant group, the first secondary cell belongs to the dormant group, and the BWP handover delay comprises one or more third handover delays, each of the one or more third handover delays is a BWP handover delay of each secondary cell in the dormant group;

the method further comprises the following steps:

17. A method of communication, comprising:

the method comprises the steps that network equipment sends scheduling Downlink Control Information (DCI) to terminal equipment on a main cell, wherein the DCI is used for indicating the terminal equipment to switch the state of a first auxiliary cell, and the state of the first auxiliary cell comprises a dormant state and a non-dormant state;

the network device determines a second time period according to the time delay of the partial bandwidth BWP switching and first information, wherein the first information is used for indicating that the terminal device does not have the physical downlink shared channel PDSCH scheduled by the scheduling DCI in minK0 time units and/or does not have the physical uplink shared channel PUSCH scheduled by the scheduling DCI in minK2 time units after receiving the scheduling DCI;

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 transmits the PDSCH or receives a PUSCH in the first secondary cell after transmitting the scheduling DCI for a second time period; or,

if the scheduling DCI is used to instruct the terminal device to switch the non-dormant state of the first secondary cell to the dormant state, the network device transmits or receives a reference signal on the first secondary cell after a second time period after the scheduling DCI is transmitted.

18. The method of claim 17, wherein the BWP handover latency is a first handover latency, wherein the first handover latency is a latency of BWP handover of the first secondary cell, wherein a duration of the first handover latency is N time units, wherein a duration of the second period is T2 time units, wherein the T2 is a value of a larger one of the N and the minK0, or wherein the T1 is a value of a larger one of the N and the minK 2.

19. The method of claim 17, wherein the latency of the BWP handover comprises a first handover latency and a second handover latency, wherein the first handover latency is a latency of the BWP handover of the first secondary cell, wherein the first handover latency has a duration of N time units, wherein the second handover latency is a latency of the BWP handover of the primary cell, wherein the second handover latency has a duration of M time units, wherein the duration of the second period is T3 time units, wherein T3 is a value of a difference of X minus M, wherein X is a sum of N and a larger one of M and minK 0; alternatively, the T3 is a value obtained by subtracting the M from Y, which is the sum of the N and the larger one of the M and the minK 2.

20. The method of any of claims 17 to 19, wherein the scheduling DCI is configured to instruct the terminal device to handover states of secondary cells in a dormant group, wherein the first secondary cell belongs to the dormant group, wherein the latency of the BWP handover comprises one or more third handover latencies, each being a latency of a BWP handover of each secondary cell in the dormant group,

the method further comprises the following steps:

21. A communication apparatus, characterized in that it comprises means for implementing the method according to any one of claims 1 to 10.

22. A communication apparatus, characterized in that it comprises means for implementing the method according to any of claims 11 to 20.

23. A communications apparatus, comprising:

a processor to execute computer instructions stored in the memory to cause the apparatus to perform: the method of any one of claims 1 to 10.

24. A communications apparatus, comprising:

a processor to execute computer instructions stored in the memory to cause the apparatus to perform: the method of any one of claims 10 to 20.

25. A computer-readable storage medium, having stored thereon a computer program which, when executed, causes the method of any of claims 1-20 to be performed.

26. A communication system, characterized in that the network system comprises a communication device according to claim 21 or 23 and a communication device according to claim 22 or 24.