CN115884407A

CN115884407A - Wireless communication method, device and system

Info

Publication number: CN115884407A
Application number: CN202110903178.7A
Authority: CN
Inventors: 高飞; 焦淑蓉; 黄雯雯; 纪刘榴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-03-31
Also published as: WO2023011014A1

Abstract

The embodiment of the application provides a wireless communication method, a wireless communication device and a wireless communication system, which are used for solving the problem that whether the scheduling scene is the expected judgment of UE or not is inconsistent under the inter-slot PDCCH repeated transmission scene. The method comprises the following steps: the terminal equipment receives a first Physical Downlink Control Channel (PDCCH) from the network equipment on a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the terminal device receives a second PDCCH from the network device in a second time slot, wherein the second time slot is associated with a second minimum scheduling offset limit; the terminal equipment determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, wherein the third minimum scheduling offset limit is used for limiting the time slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ (ii) a Wherein the first time slot is different from the second time slot, the first PDCCH andthe second PDCCH is used for PDCCH repetition transmission.

Description

Wireless communication method, device and system

Technical Field

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

Background

Under the base station downlink scheduling physicsWhen a Physical Downlink Shared Channel (PDSCH) is used, downlink Control Information (DCI) is transmitted to a User Equipment (UE) through a Physical Downlink Control Channel (PDCCH). The DCI includes time domain location information of the PDSCH, and specifically, the time domain location information of the PDSCH includes a slot offset (slot offset) K ₀ . Wherein the time slot offset is K ₀ And the number of the time slots which are separated between the time slot of the scheduled PDSCH and the time slot of the DCI for scheduling the PDSCH is shown. As shown in fig. 1, the time slot where the DCI is located is time slot n, and the time slot where the DCI schedules PDSCH is located is time slot n +1, then K included in the DCI ₀ Is 1.

In the fifth generation (5 th generation, 5G) New Radio (NR) version 16 (release-16, rel-16), the minimum scheduling offset constraint K is introduced _0min For limiting K ₀ Is the minimum value of (c). For example, when the scheduled PDSCH is in the same cell as the scheduled DCI and there is no partial Bandwidth (BWP) handover, K is ₀ Has a minimum value of K _0min 。

In the scenario of inter-slot PDCCH repeated transmission, two associated candidate PDCCHs are used for PDCCH repeated transmission. The PDCCH repeated transmission refers to the transmission of the same DCI payload bits in the PDCCH, and the inter-slot PDCCH repeated transmission refers to the two candidate PDCCHs used for PDCCH repeated transmission being located in different slots. As shown in fig. 2, the content of the first DCI transmitted through the first PDCCH candidate is the same as that of the second DCI transmitted through the second PDCCH candidate, where the time slot of the first DCI is time slot n, and the time slot n is K _0min In the effective range of =1, the time slot where the second DCI is located is time slot n +1, and the time slot n +1 is at K _0min K included in the first DCI and the second DCI within an effective range of =2 ₀ Both are 1, and the time slot of the PDSCH scheduled by the first DCI and the second DCI is time slot n +2.

In fig. 2, K assumes that the scheduled PDSCH is in the same cell as the DCI scheduling the PDSCH and there is no BWP handover ₀ Has a minimum value of K _0min . If K ₀ K validated on time slot n by the first DCI _0min Due to K ₀ ＝1，K _0min =1, therefore K ₀ ≥K _0min The scheduling context is a scheduling context expected by the UE, and meets a preset condition or rule; if K ₀ K validated on time slot n +1 by the second DCI _0min Due to K ₀ ＝1，K _0min =2, therefore, K is not satisfied ₀ ≥K _0min And the scheduling scenario is not expected by the UE, and the scheduling scenario does not meet the preset condition or rule. In other words, if two repeated DCIs are respectively located at K with different values _0min Within the effective range of (2), the determination result of whether the scheduling scene is expected by the UE may be contradictory.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a wireless communication device and a wireless communication system, which are used for solving the problem that whether the scheduling scene is the expected judgment of UE or not is inconsistent under the inter-slot PDCCH repeated transmission scene.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: in a first aspect, a wireless communication method is provided, and an apparatus for performing the wireless communication method may be a terminal device, and may be a module, such as a chip or a system-on-chip, applied in the terminal device. The following description will be made taking an execution subject as a terminal device as an example. The terminal equipment receives a first Physical Downlink Control Channel (PDCCH) from the network equipment on a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the terminal device receiving a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; the terminal equipment determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, wherein the third minimum scheduling offset limit is used for limiting the time slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ (ii) a Wherein the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

In the wireless communication method provided by the application, when the terminal device receives the first PDCCH and the second PDCCH for PDCCH repeated transmission on two different time slots, that is, under an inter-slot PDCCH repeated transmission scenario, andand when the two different time slots are respectively associated with different minimum scheduling offset limits, the terminal device can determine a third minimum scheduling offset limit according to the different minimum scheduling offset limits, so that K contained in the two same PDCCHs is clear ₀ Or K ₂ Constrained by a third minimum scheduling offset limit, and thus overcome K ₀ The constraint of which minimum scheduling offset limit is imposed is an unclear question, unifying the decision whether a scheduling scenario is desired by the UE. In addition, the above wireless communication method is performed on both the network device side and the terminal device side to unify the network device and the terminal device for K ₀ Or K ₂ Subject to the constraints of the third minimum scheduling offset limit.

With reference to the first aspect, in a possible implementation manner, the determining, by the terminal device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the terminal device determines the first minimum scheduling offset limit as the third minimum scheduling offset.

With reference to the first aspect, in a possible implementation manner, the determining, by the terminal device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the terminal device determines the second minimum scheduling offset restriction as the third minimum scheduling offset restriction.

With reference to the foregoing first aspect, in a possible implementation manner, the determining, by the terminal device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the terminal device determines the third minimum scheduling offset limit as the maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit. In the scheme, if the third minimum scheduling offset limit is determined according to the maximum value of the first minimum scheduling offset limit and the second minimum scheduling offset limit, the number of time slots between the time slot of the scheduled PDSCH and the time slot of the PDCCH scheduling the PDSCH is larger by combining the definitions of the time slot offset and the minimum scheduling offset limit, and in the interval time slots, the terminal device does not need to receive the PDSCH and can be in an idle or sleep state, which is beneficial to saving power consumption, but the scheduling delay is increased by spacing more time slots. Correspondingly, if the third minimum scheduling offset limit is determined according to the minimum value of the first minimum scheduling offset limit and the second minimum scheduling offset limit, the number of time slots between the time slot in which the scheduled PDSCH is located and the time slot in which the PDCCH for scheduling the PDSCH is located is smaller, which is beneficial to reducing the scheduling delay, but increases the power consumption.

In a second aspect, a wireless communication method is provided, and an apparatus for performing the wireless communication method may be a terminal device, and may be a module, such as a chip or a system-on-chip, applied in the terminal device. The following description will be given taking the execution subject as a terminal device as an example. The terminal equipment receives a first Physical Downlink Control Channel (PDCCH) from the network equipment on a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the terminal device receiving a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; wherein the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission. In the wireless communication method provided by the present application, the two minimum scheduling offset limits associated with the two different time slots are the same, that is, the first PDCCH and the second PDCCH that are not allowed to be transmitted by the network device are respectively limited by different minimum scheduling offset limits. Therefore, K included in the two identical PDCCHs is clarified ₀ Or K ₂ Constrained by the first minimum scheduling offset limit or the second minimum scheduling offset limit, and further overcoming K ₀ Or K ₂ The constraint of which minimum scheduling offset limit is imposed is an unclear question, unifying the decision whether a scheduling scenario is desired by the UE.

In a third aspect, a wireless communication method is provided, and an apparatus for performing the wireless communication method may be a terminal device, and may be a module, such as a chip or a system-on-chip, applied in the terminal device. The following description will be made taking an execution subject as a terminal device as an example. The terminal equipment receives a first Physical Downlink Control Channel (PDCCH) from the network equipment on a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the terminal device receiving a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission; if the fourth minimum scheduling offset constraint in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset constraint, the terminal device uses the first time slot or the second time slot as a reference, or the terminal device uses the first PDCCH or the second PDCCH as a reference, so as to determine an effective time of the fourth minimum scheduling offset constraint.

In the wireless communication method provided by the present application, when the fourth minimum scheduling offset restriction is different from the second minimum scheduling offset restriction, the terminal device can select the PDCCH or the slot as a reference to determine the effective time of the fourth minimum scheduling offset restriction. Therefore, the problem that in the inter-slot PDCCH repeated transmission, which one is used in multiple possible effective time can be solved. In addition, the above-described wireless communication method is performed on both the network device side and the terminal device side to unify the understanding of the network device and the terminal device for the effective time.

In a fourth aspect, a wireless communication method is provided, and an apparatus for performing the wireless communication method may be a network device, and may be a module, such as a chip or a system-on-chip, applied in the network device. The following description will be given taking an execution subject as a network device as an example. The network equipment sends a first Physical Downlink Control Channel (PDCCH) to the terminal equipment in a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the network device sends a second PDCCH to the terminal device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; the network equipment determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, wherein the third minimum scheduling offset limit is used for limiting the time slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ (ii) a Wherein the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

With reference to the fourth aspect, in a possible implementation manner, the determining, by the network device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the network device determines the first minimum scheduling offset limit as the third minimum scheduling offset.

With reference to the fourth aspect, in a possible implementation manner, the determining, by the network device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the network device determines the second minimum scheduling offset limit as the third minimum scheduling offset limit.

With reference to the fourth aspect, in a possible implementation manner, the determining, by the network device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the network device determines the third minimum scheduling offset limit to be the maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

For technical effects brought by any possible implementation manner of the fourth aspect, reference may be made to the technical effects brought by the first aspect or different implementation manners of the first aspect, and details are not described here again.

In a fifth aspect, a wireless communication method is provided, and an apparatus for performing the wireless communication method may be a network device, and may be a module, such as a chip or a chip system, applied in the network device. The following description takes an execution subject as a network device as an example. The network equipment sends a first Physical Downlink Control Channel (PDCCH) to the terminal equipment in a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the network device sends a second PDCCH to the terminal device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; wherein the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

The technical effects of the fifth aspect can be referred to the technical effects of the second aspect, and are not described herein again.

In a sixth aspect, a wireless communication method is provided, and an apparatus for performing the wireless communication method may be a network device, and may be a module, such as a chip or a system-on-chip, applied in the network device. The following description takes an execution subject as a network device as an example. The network equipment sends a first Physical Downlink Control Channel (PDCCH) to the terminal equipment in a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit; the network device transmitting a second PDCCH to the terminal device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission; if the fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, the network device uses the first time slot or the second time slot as a reference, or the network device uses the first PDCCH or the second PDCCH as a reference, so as to determine an effective time of the fourth minimum scheduling offset limit.

The technical effects brought by the sixth aspect can be referred to the technical effects brought by the third aspect, and are not described herein again.

In a seventh aspect, a communication device is provided for implementing the above method. The communication device includes corresponding modules, units, or means (means) for implementing the above methods, and the modules, units, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the seventh aspect, in a possible implementation manner, the communication apparatus includes: a transceiver module and a processing module; the transceiver module is used for receiving a first physical signal from a network device in a first time slotA downlink control channel, PDCCH, the first time slot being associated with a first minimum scheduling offset limit; the transceiver module is further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; the processing module is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, where the third minimum scheduling offset limit is used to limit a slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ (ii) a The first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

With reference to the seventh aspect, in a possible implementation manner, the processing module is configured to determine a third minimum scheduling offset constraint according to the first minimum scheduling offset constraint and/or the second minimum scheduling offset constraint, and the determining includes: for determining the first minimum scheduling offset limit as the third minimum scheduling offset.

With reference to the seventh aspect, in a possible implementation manner, the processing module is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and includes: for determining the second minimum scheduling offset limit as the third minimum scheduling offset limit.

With reference to the seventh aspect, in a possible implementation manner, the processing module is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and includes: for determining the third minimum scheduling offset limit as the maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

With reference to the seventh aspect, in a possible implementation manner, the processing module may be a processor, and the transceiver module may be a communication module connected via a communication interface.

For technical effects brought by any possible implementation manner of the seventh aspect, reference may be made to the technical effects brought by the first aspect or different implementation manners of the first aspect, and details are not described here again.

In an eighth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, and the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the eighth aspect, in one possible implementation manner, the communication apparatus includes: a transceiver module; the transceiver module is configured to receive a first physical downlink control channel PDCCH from a network device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; the transceiver module is further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; wherein the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

With reference to the eighth aspect, in a possible implementation manner, the transceiver module may be a communication module connected via a communication interface.

The technical effects of the eighth aspect can be referred to the technical effects of the second aspect, and are not described herein again.

In a ninth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, and the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the ninth aspect, in one possible implementation manner, the communication apparatus includes: the device comprises a receiving and sending module and a processing module; the transceiver module is configured to receive a first Physical Downlink Control Channel (PDCCH) from a network device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; the transceiver module is further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission; the processing module is configured to, if a fourth minimum scheduling offset constraint in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset constraint, determine an effective time of the fourth minimum scheduling offset constraint by using the first time slot or the second time slot as a reference, or by using the first PDCCH or the second PDCCH as a reference.

With reference to the ninth aspect, in a possible implementation manner, the processing module may be a processor, and the transceiver module may be a communication module connected via a communication interface.

The technical effects of the ninth aspect can be referred to the technical effects of the third aspect, and are not described herein again.

In a tenth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, and the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the tenth aspect, in one possible implementation manner, the communication apparatus includes: a transceiver module and a processing module; the transceiver module is configured to send a first physical downlink control channel PDCCH to a terminal device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; the transceiver module is further configured to transmit a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit; the processing module is configured to determine a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction, where the third minimum scheduling offset restriction is used to restrict the first PDCCH and the second PDCCHTime slot offset K in two PDCCH ₀ Or K ₂ (ii) a Wherein the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

With reference to the tenth aspect, in a possible implementation manner, the determining, by the processing module, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: for determining the first minimum scheduling offset limit as the third minimum scheduling offset.

With reference to the tenth aspect, in a possible implementation manner, the determining, by the processing module, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: for determining the second minimum scheduling offset limit as the third minimum scheduling offset limit.

With reference to the tenth aspect, in a possible implementation manner, the determining, by the processing module, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: for determining the third minimum scheduling offset limit as the maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

With reference to the tenth aspect, in one possible implementation manner, the processing module may be a processor, and the transceiver module may be a communication module connected via a communication interface.

For technical effects brought by any possible implementation manner of the tenth aspect, reference may be made to the technical effects brought by the first aspect or different implementation manners of the first aspect, and details are not described here again.

In an eleventh aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, and the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the eleventh aspect, in one possible implementation manner, the communication apparatus includes: a transceiver module; the transceiver module is configured to send a first physical downlink control channel PDCCH to a terminal device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; the transceiver module is further configured to transmit a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit; wherein the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

With reference to the eleventh aspect, in one possible implementation manner, the transceiver module may be a communication module connected via a communication interface.

The technical effects of the eleventh aspect can be referred to the technical effects of the second aspect, and are not described herein again.

In a twelfth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, and the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

With reference to the twelfth aspect, in a possible implementation manner, the communication apparatus includes: a transceiver module and a processing module; the transceiver module is configured to send a first physical downlink control channel PDCCH to a terminal device in a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; the transceiver module is further configured to transmit a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit, and the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission; the processing module is configured to determine an effective time of a fourth minimum scheduling offset constraint by referring to the first slot or the second slot or by referring to the first PDCCH or the second PDCCH if the fourth minimum scheduling offset constraint in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset constraint.

With reference to the twelfth aspect, in one possible implementation manner, the processing module may be a processor, and the transceiver module may be a communication module connected via a communication interface.

The technical effects of the twelfth aspect can be referred to the technical effects of the third aspect, and are not described herein again.

In a thirteenth aspect, there is provided a communication system comprising: a terminal device for performing the method of the first aspect and a network device for performing the method of the fourth aspect; or, a terminal device for executing the method of the second aspect, and a network device for executing the method of the fifth aspect; alternatively, a terminal device for performing the method of the third aspect, and a network device for performing the method of the sixth aspect.

In a fourteenth aspect, a communication apparatus is provided, including: a processor; the processor is configured to be coupled to the memory and to execute the method according to the instructions, after reading the computer instructions stored in the memory, as described in the first, second or third aspect.

With reference to the fourteenth aspect, in one possible implementation manner, the communication apparatus further includes a memory; the memory is for storing computer instructions.

With reference to the fourteenth aspect, in a possible implementation manner, the communication apparatus further includes a communication interface; the communication interface is used for the communication device to communicate with other equipment. Illustratively, the communication interface may be a transceiver, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit, or the like.

In combination with the above fourteenth aspect, in one possible implementation manner, the communication device may be a chip or a chip system. When the communication device is a chip system, the communication device may be formed by a chip, or may include a chip and other discrete devices.

With reference to the fourteenth aspect, in a possible implementation manner, when the communication device is a chip or a chip system, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, a related circuit, or the like on the chip or the chip system. The processor may also be embodied as a processing circuit or a logic circuit.

In a fifteenth aspect, a communication device is provided, which includes: a processor; the processor is configured to be coupled to the memory and to execute the method according to the instructions, after reading the computer instructions stored in the memory, as described in the fourth, fifth or sixth aspect.

With reference to the fifteenth aspect above, in a possible implementation manner, the communication apparatus further includes a memory; the memory is for storing computer instructions.

With reference to the fifteenth aspect, in a possible implementation manner, the communication device further includes a communication interface; the communication interface is used for the communication device to communicate with other equipment. Illustratively, the communication interface may be a transceiver, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit, and the like.

With reference to the fifteenth aspect above, in one possible implementation manner, the communication device may be a chip or a chip system. When the communication device is a chip system, the communication device may be formed by a chip, or may include a chip and other discrete devices.

With reference to the fifteenth aspect, in a possible implementation manner, when the communication device is a chip or a chip system, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit on the chip or the chip system. The processor may also be embodied as a processing circuit or a logic circuit.

In a sixteenth aspect, there is provided a computer readable storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method of any of the above aspects.

In a seventeenth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above aspects.

For technical effects brought by any possible implementation manner of the thirteenth aspect to the seventeenth aspect, reference may be made to the technical effects brought by the first aspect or different implementation manners of the first aspect, and details are not described here again.

Drawings

FIG. 1 shows a prior art DCI offset by K ₀ A schematic diagram of scheduling PDSCH;

FIG. 2 shows a minimum scheduling offset constraint ambiguity K in the prior art in an inter-slot PDCCH retransmission scenario _0min A schematic diagram of the problem of (1);

FIG. 3 is a flowchart illustrating PDCCH retransmission in the prior art;

fig. 4 is a diagram illustrating PDCCH repeated transmission based on multiple TPR transmission in the prior art;

FIG. 5 is a diagram illustrating PDCCH retransmission between two search space sets in the prior art;

FIG. 6 is a diagram illustrating PDCCH retransmission between adjacent timeslots in the prior art;

FIG. 7 is a diagram of a minimum scheduling offset constraint K in the prior art _0min Limiting the slot offset K ₀ A schematic diagram of values;

FIG. 8 is a diagram of prior art determination of minimum scheduling offset constraint K in a self-scheduling and no BWP handoff scenario _0min Schematic diagram one of the effective time of (2);

FIG. 9 is a diagram of prior art determination of minimum scheduling offset constraint K in a self-scheduling and no BWP handoff scenario _0min Second diagram of effective time;

FIG. 10 is a diagram of determining a minimum scheduling offset constraint K in a cross-carrier scheduling scenario in the prior art _0min A schematic of the effective time of (a);

FIG. 11 shows a prior art DCI offset by K ₂ Schematic diagram for scheduling PUSCH；

Fig. 12 is a schematic diagram illustrating the problem of the effective time ambiguity of the minimum scheduling offset constraint in the prior art in the scenario of inter-slot PDCCH retransmission;

fig. 13 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a network device and a terminal device according to an embodiment of the present application;

fig. 15 is a schematic diagram of a specific structure of a terminal device according to an embodiment of the present application;

fig. 16 is a flowchart of a wireless communication method according to an embodiment of the present application;

fig. 17 is a flowchart of another wireless communication method according to an embodiment of the present application;

fig. 18 is a flowchart of another wireless communication method according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

To facilitate understanding of the technical solutions of the embodiments of the present application, a brief description of related technologies or terms of the present application is first given as follows.

First, a Physical Downlink Control Channel (PDCCH) is transmitted repeatedly.

In the embodiment of the present application, 1 PDCCH repetition transmission means two PDCCH transmissions, i.e., a first PDCCH transmission and a second PDCCH transmission. In the fifth generation (5 th generation,5 g) New Radio (NR) release 17 (release-17, rel-17), the same Aggregation Level (AL) and the same number of Control Channel Elements (CCEs) are used for the first PDCCH transmission and the second PDCCH transmission to repeatedly transmit the same DCI payload bit.

Fig. 3 shows the main steps in PDCCH repeated transmission. On the base station side, firstly generating DCI load bits, attaching Cyclic Redundancy Check (CRC), then coding to form coded bits, then performing rate matching, scrambling and modulation, finally mapping the modulated signals to a first time-frequency resource, and sending a first PDCCH transmission on the first time-frequency resource; and mapping the modulated signal to a second time frequency resource and sending a second PDCCH transmission on the second time frequency resource. The numbers of AL or CCE adopted by the first PDCCH transmission and the second PDCCH transmission formed in the way are the same, and the load or the coding bit of the contained DCI is also the same.

In order to improve the reliability of DCI transmission, a plurality of Transmission Reception Points (TRPs) may respectively send coded code bits on different time-frequency resources. The reliability of the transmission can be improved because the coded bits are transmitted multiple times, which corresponds to an increase in signal strength or signal-to-noise ratio. After receiving multiple coded bits on the different time frequency resources, a User Equipment (UE) performs joint parsing to obtain DCI information bits. Illustratively, the joint parsing operation may be: and the UE performs channel estimation on each of the different time-frequency resources and demodulates the received signal to acquire a likelihood value on each time-frequency resource, and finally, the UE combines the acquired plurality of likelihood values. Since the likelihood values may also be referred to as soft information, the operation in the above example may also be referred to as a soft combining operation.

Taking two TRPs as an example, fig. 4 shows a schematic diagram of PDCCH repeated transmission based on multiple TPR transmission. The first TRP and the second TRP serve as cooperative base stations and serve the same UE. Specifically, in one of the two TRPs, CRC attachment, coding, rate matching, scrambling and modulation as shown in fig. 3 are performed on the DCI payload bit, and then the modulated signal is transmitted to the other TRP, and then PDCCH transmission is performed once by each of the two TRPs; alternatively, CRC attachment, coding, rate matching, scrambling, and modulation as shown in fig. 3 are performed on the same payload bit at each of the two TRPs, and then, PDCCH transmission is performed once by each of the two TRPs, which is not limited in this embodiment. After receiving the repeated transmission of the PDCCH from the first TRP and the second TRP, the UE can acquire the DCI information bit through soft combining operation.

In fig. 4, DCI delivered by a first TRP corresponds to a first control resource set (core set), DCI delivered by a second TRP corresponds to a second core set, and the first core set and the second core set are configured to be completely overlapped or partially overlapped. Wherein, the CORESET is a group of specific time-frequency resources in the downlink resources, and is used for carrying the PDCCH or DCI. Two DCIs sent on two CORESET are respectively carried on two candidate PDCCHs, and the two DCIs schedule the same Physical Downlink Shared Channel (PDSCH). Since the frequency resources occupied by the two PDCCH candidates may be different, when one of the PDCCH candidates experiences severe frequency selective fading during transmission, the other PDCCH candidate may not experience the same severe frequency selective fading, and thus the capability of resisting frequency selective fading during transmission can be improved.

In order to facilitate the UE to determine which PDCCH transmission belongs to 1 PDCCH retransmission and perform soft combining operation on the 1 PDCCH retransmission, an association relationship between two PDCCH candidates (PDCCH candidates) respectively corresponding to CORESET needs to be defined. In this way, the UE only needs to perform soft combining on the associated PDCCH candidates, so that the UE can be prevented from erroneously attempting soft combining on the non-associated PDCCH candidates, thereby reducing the complexity of the UE.

Currently, all candidate PDCCHs within 1 search space set (SS set) are used for PDCCH repetition transmission. The parameter configuration of the search space set comprises index information of CORESET. The base station configures association of two search space sets for PDCCH repeated transmission through Radio Resource Control (RRC) parameters. The two search space sets may be referred to as associated search space sets, and the two candidate PDCCHs for PDCCH repeated transmission respectively belong to one of the associated search space sets. In the associated search space set, according to the definition of PDCCH repetition transmission, the same AL is used for two PDCCH transmissions for PDCCH repetition transmission, that is, PDCCH repetition transmission can be realized only by two AL8 PDCCH candidates, but not by 1 AL8 PDCCH candidates and 1 AL16 PDCCH candidates, for example.

Illustratively, fig. 5 is a diagram of PDCCH repeated transmission between two search space sets. The first search space set and the second search space set are associated search space sets, the first search space set comprises 2 AL8 candidate PDCCHs and 1 AL16 candidate PDCCHs, and the second search space set also comprises 2 AL8 candidate PDCCHs and 1 AL16 candidate PDCCHs. For AL8, a PDCCH candidate with an index of 1 in the first search space set and a PDCCH candidate with an index of 1 in the second search space set may be associated PDCCH candidates, and a PDCCH candidate with an index of 2 in the first search space set and a PDCCH candidate with an index of 2 in the second search space set may be associated PDCCH candidates; for AL16, PDCCH candidates with index 1 in the first set of search spaces and PDCCH candidates with index 1 in the second set of search spaces may be associated PDCCH candidates. Wherein the associated PDCCH candidate is used for PDCCH repetition transmission. It can be seen that each PDCCH candidate in each search space set in fig. 5 has a PDCCH candidate associated with it, that is, all PDCCH candidates in 1 search space set are used for PDCCH repeated transmission, and do not include a PDCCH candidate for a separate PDCCH transmission. If the base station wants to send the independent PDCCH, it can only be implemented by other specially configured search space sets, for example, a third search space set configured additionally.

According to whether the time slots of the two associated candidate PDCCHs are the same or not, the PDCCH repeated transmission can be divided into intra-slot PDCCH repetition (intra-slot PDCCH repetition) and inter-slot PDCCH repetition (inter-slot PDCCH repetition), wherein the two associated candidate PDCCHs respectively belong to two associated search space sets. Fig. 6 shows a case of inter-slot PDCCH repetition. Specifically, the first candidate PDCCH and the second candidate PDCCH are associated, the first candidate PDCCH is located in a time slot n, the second candidate PDCCH is located in a time slot n +1, and the time slot n +1 are different time slots. It should be noted that fig. 6 only shows that the time slots in which the two associated PDCCH candidates are located are adjacent, and furthermore, the time slots in which the two associated PDCCH candidates are located may also be non-adjacent.

Second, minimum scheduling offset limit (minimum) scheduling offset restriction)K _0min 。

The DCI formats for downlink scheduling comprise DCI format 1_0, DCI format 1 _1and DCI format 1_2, wherein the DCI format 1_0, the DCI format 1 _1and the DCI format 1 _2can carry a time slot offset K ₀ Information, DCI format 1 _1may include a field "minimum applicable scheduling offset indicator (minimum applicable scheduling offset indicator)", which is used for dynamic switching of K _0min 。

It should be noted that, in the embodiments of the present application, "effective" and "application" are the same concept and may be replaced with each other.

Introduction of K _0min For the purpose of limiting K ₀ Is the minimum value of (c). Specifically, K contained in DCI ₀ The following formula (1) is required to be satisfied

Wherein the content of the first and second substances,

represents upper rounding, K _0min μ and μ' are corresponding values in a scheduled cell, which is a cell in which the scheduled PDSCH is located. K _0min Indicating the minimum scheduling offset constraint in effect in the scheduled cell. μ denotes a subcarrier spacing type (BWP) of an activated downlink (active downlink) bandwidth part (BWP) of the scheduled cell when the DCI is received, the subcarrier spacing type being determined according to a value of a subcarrier spacing, for example, the subcarrier spacing is 15kHz, and the corresponding subcarrier spacing type is 0; the subcarrier interval is 30kHz, and the corresponding subcarrier interval type is 1; the subcarrier interval is 60kHz, and the corresponding subcarrier interval type is 2; the subcarrier spacing is 120kHz and the corresponding subcarrier spacing type is 3.μ' denotes a subcarrier spacing type of a new active downlink BWP of a scheduled cell when a BWP handover occurs. In particular, if there is no BWP switching, μ' = μ, K ₀ ≥K _0min . The above formula can be regarded asFor a limitation of base station scheduling, if the DCI sent by the base station includes K which does not satisfy the above formula ₀ Then, the UE may process the DCI arbitrarily after receiving the DCI, for example, the UE regards the DCI as a false alarm and does not process the DCI, or the UE determines that there is an error scenario and discards the DCI.

K will be explained below with reference to specific examples _0min To K ₀ The limiting function of the value. As shown in fig. 7, the K currently in effect in the scheduled cell _0min Is 2, the subcarrier spacing of the activated downlink BWP of the scheduled cell when receiving DCI is 15kHz, i.e., μ =0, the subcarrier spacing of the activated downlink BWP after switching is 30kHz, i.e., μ' =1, and the result is substituted into the right side of the above equation (1) to obtain

That is, K included in DCI ₀ It is necessary to be at least 4 or more. The scenario shown in fig. 7 is a scheduling scenario desired by the UE, and the UE would normally process DCI. If the time slot of the PDSCH scheduled by the DCI is earlier than the time slot m +4 on the second BWP, the UE will process the DCI arbitrarily for the scheduling scenario that the UE does not expect.

It should be noted that, in the embodiments of the present application, determination of a time slot of a scheduled PDSCH is not discussed, and a specific determination process may refer to an existing protocol, which is described in a unified manner herein and is not described in detail below.

Third, K _0min The effective time of (c).

How K is determined in different scenarios will be explained below _0min The effective time of (c).

Scene one: DCI indicates no BWP handover

If the user equipment receives DCI on slot n and the DCI does not indicate BWP handover, that is, K indicated in the DCI _0min Value acts on the currently active downlink BWP, K _0min Takes effect starting from time slot n + X of the primary scheduling cell. The main scheduling cell is a cell where DCI (downlink control information) of a PDSCH (physical downlink shared channel) is scheduled; the "current" refers to when the DCI is received in the time slot n, which is described in a unified manner herein and is not described in detail below; x is the value of the application delay and is determined according to different valuesIn this case, X may take different values.

For example, when the DCI is located within the first three Orthogonal Frequency Division Multiplexing (OFDM) symbols of the slot n, X satisfies the following formula (2):

wherein the content of the first and second substances,

representing upper rounding; k _0minOld And mu _PDSCH For corresponding values in the scheduled cell, Z _μ And mu _PDCCH Corresponding values in the primary scheduling cell. In particular, K _0minOld K currently in effect on active downlink BWP indicating scheduled cell _0min A value; z _μ Is as the following table 1, where μ is the subcarrier spacing type corresponding to the time slot n on the active downlink BWP of the primary scheduling cell; mu.s _PDCCH A subcarrier interval type corresponding to a PDCCH on an activated downlink BWP of a main scheduling cell is provided; mu.s _PDSCH And the interval type of the subcarrier corresponding to the PDSCH on the activated downlink BWP of the scheduled cell.

TABLE 1Z _μ Value of

μ	Z _μ
		0	1
1	1
		2	2
3	2

FIG. 8 illustrates determining K _0min An example of an effective time of. In this example, the indication field "scheduling offset indicator for minimum application" contained in DCI of format 1_1 indicates K currently in effect _0min K of different values _0min Value and K ₀ =3, and the DCI is located within the first three OFDM symbols of slot n. Wherein the currently validated K _0min The value is 1, that is, K _0minOld =1, new indicated K _0min A value of 2; suppose in the case of self-scheduling and no BWP handoff, i.e.

The "self-scheduling" means that the scheduled PDSCH and the DCI scheduling the PDSCH are located in the same cell. In this case, if the subcarrier spacing of the cell is 15kHz, μ =0,z can be obtained from table 1 _μ And =1. Then, from equation (2) it can be calculated,

thus, as shown in FIG. 8, the newly indicated K _0min The value takes effect starting from slot n + 1.

For another example, when the DCI is located in other OFDM symbols of the slot n except for the first three OFDM symbols, X satisfies the following formula (3):

the meaning of each parameter or symbol in the formula (3) is the same as the meaning of the corresponding parameter or symbol in the formula (2), and specific reference may be made to the related description of the formula (2), which is not repeated herein.

FIG. 9 shows, in conjunction with the conditions in the example shown in FIG. 8Determining K _0min Another example of an effective time of. In this example, the indication field "scheduling offset indicator for minimum application" contained in DCI of format 1_1 indicates K currently in effect _0min K of different value _0min Value and K ₀ =3, and the DCI is located in other OFDM symbols of slot n than the first three OFDM symbols, i.e., the DCI is not within the first three OFDM symbols of slot n. Wherein the currently validated K _0min The value is 1, that is, K _0minOld =1, new indicated K _0min A value of 2; suppose in the case of self-scheduling and no BWP handoff, i.e.

In this case, if the subcarrier spacing of the cell is 15kHz, μ =0,z can be obtained from table 1 _μ =1. Then, it can be calculated by the formula (3) that->

Thus, as shown in FIG. 9, the newly indicated K _0min The value takes effect starting from slot n +2.

Scene two: DCI indicates BWP handover

If the DCI received by the user equipment on the time slot n indicates BWP handover and indicates K on the target BWP _0min Value, the scheduled PDSCH cannot be in a slot earlier than K on the target BWP _0min The effective time slot of (2), wherein the target BWP is the BWP where the PDSCH is located. Since this scenario can be well combined with PDCCH repeated transmission, and there is no technical problem, this embodiment does not describe this scenario in detail.

Scene three: cross-carrier scheduling (cross-carrier scheduling)

In the embodiment of the present application, unlike self-scheduling, cross-carrier scheduling refers to that a scheduled PDSCH and DCI scheduling the PDSCH are located in different cells. The difference between cross-carrier scheduling and BWP handoff scenarios is that in BWP handoff scenarios, there are no effective K on the target BWP _0min Whereas in cross-carrier scheduling, the scheduled cell has a validated K _0min . In particular, BWP switching fieldsIn view of the fact that only one BWP can be active at a time, there is no data transmission or reception on the inactive BWP, and therefore there is no valid K on the target BWP _0min . In cross-carrier scheduling, it is assumed that DCI on a first Component Carrier (CC) schedules a PDSCH on a second CC, where in the embodiment of the present application, the CC may be equal to a cell, that is, the first CC may be understood as a primary scheduling cell and the second CC may be understood as a scheduled cell. Then, both the first CC and the second CC are active cells, both having the validated K _0min 。

The above equations (1), (2) and (3) can be applied to the cross-carrier scheduling scenario. In the cross-carrier scheduling scenario, when the subcarrier spacing type of the primary scheduling cell is different from that of the scheduled cell, the μ in the formulas (1), (2) and (3) is affected _PDCCH ，μ _PDSCH Values for μ and μ'.

FIG. 10 illustrates determining K _0min Yet another example of the effective time of (a), which is used to illustrate the application of equation (3) in a cross-carrier scheduling scenario. In fig. 10, the indication field "scheduling offset indicator for minimum application" included in the DCI of format 1_1 indicates K currently in effect on the first CC _0min K of different values _0min Value and K ₀ =3, and the DCI is located in other OFDM symbols of the slot n except the first three OFDM symbols. Wherein the currently validated K on the second CC _0min Value 1, i.e. parameter K in the scheduled cell _0minOld =1, K currently in effect on first CC _0min Value 2, newly indicated K _0min The value is 3. The subcarrier spacing of the first CC where DCI is located is 15kHz, i.e., μ = μ _PDCCH =0, subcarrier spacing of second CC where scheduled PDSCH is located is 30kHz, i.e., μ _PDSCH And =1. Then, it can be calculated from the above equation (3),

thus, as shown in FIG. 10, the newly indicated K _0min The value takes effect starting from slot n +2 of the primary scheduling cell.

It should be noted that it is preferable that,K _0min the starting time slot n + X in effect is the time slot in the primary scheduling cell.

In the example shown in fig. 10, assuming that there is no BWP switching, K is calculated using formula (1) ₀ When the minimum value of (A) is taken, K _0min =1, μ' = μ =1, and therefore K ₀ Has a minimum value of

I.e., K contained in DCI ₀ It is required to be 1 or more. K in the present example ₀ =3 meets this requirement, so the DCI can normally schedule PDSCH.

Fourth, K _0min Is detected.

When the base station configures a minimum scheduling offset K0 (minimumscheduling offset K0) by a higher layer parameter, for example, an RRC parameter, the DCI of format 1_1 for downlink scheduling includes a field "minimum applied scheduling offset indicator". The indication field occupies 1 bit and is used for indicating a K configured for the UE by the base station _0min Value, or two K _0min One of the values. Specifically, the method comprises the following steps:

if the base station configures two Ks for the UE _0min Value, then, illustratively, an indication field of "0" may indicate that the application is configured with the first K _0min A value; an indication field of "1" may indicate that the application is configured for a second K _0min The value is obtained.

If the base station only configures one K for the UE _0min Value, then, illustratively, an indication field of "0" may indicate that the application is configured with K _0min A value; an indication field of "1" may indicate a K of an application _0min Is 0.

Fifth, dynamically indicated conditions.

The second to fourth descriptions above are the slot offset K in downlink transmission ₀ And for limiting K ₀ Minimum valued K _0min . Similarly, in uplink transmission, a time slot offset K is also introduced ₂ And for limiting K ₂ Minimum scheduling offset limit K of minimum value of _2min . Specifically, when the base station performs uplink scheduling, the uplink scheduling is performed by the PDThe CCH transmits DCI to the UE. The DCI includes time domain location information of the PUSCH, and specifically, the time domain location information of the PUSCH includes a slot offset K ₂ . Wherein the time slot offset is K ₂ And the number of the time slots which are separated between the time slot of the scheduled PUSCH and the time slot of the DCI which schedules the PUSCH is shown. As shown in fig. 11, the time slot where the DCI is located is time slot n, and the time slot where the PUSCH scheduled by the DCI is located is time slot n +2, then K included in the DCI ₂ Is 2.

The DCI formats for uplink scheduling include DCI format 0_0, DCI format 0_1, and DCI format 0_2, where DCI format 0_0, DCI format 0_1, and DCI format 0 _2may all be used to carry slot offset K ₂ The DCI format 0_1 may include a scheduling offset indicator indicating a field "minimum application" for dynamic handover K _2min 。

When the base station passes the high-level parameters, the minimum scheduling offset K is configured ₀ In this case, the DCI of format 1_1 for downlink scheduling includes a field "scheduling offset indicator for minimum application". If the base station is configured with the minimum scheduling offset K at the same time ₂ (minimumscheduling offset K2), the DCI of format 0 _1for uplink scheduling also includes a field "scheduling offset indicator for minimum application", and in this case, K may be dynamically switched at the same time _0min And K _2min (ii) a If the base station is not configured with the minimum scheduling offset K ₂ Then, DCI of format 0_1 for uplink scheduling does not include a scheduling offset indicator indicating field "minimum application", and in this case, K can be implemented only by DCI format 1_1 _0min Dynamic switching of (2), without realizing K _2min Dynamic switching of (2).

Similarly, when the base station passes the higher layer parameters, the minimum scheduling offset K is configured ₂ In this case, the DCI of format 0_1 for uplink scheduling includes a field "scheduling offset indicator for minimum application". If the base station is configured with the minimum scheduling offset K at the same time ₀ Then, DCI of format 1_1 for downlink scheduling also includes a scheduling offset indicator indicating field "minimum application", and in this case, K may be dynamically switched at the same time _0min And K _2min (ii) a If the base station is not configured with the minimum scheduling offset K ₀ Then is used forDCI of format 1_1 for downlink scheduling does not include a scheduling offset indicator indicating field "minimum application", and in this case, K can be realized only by DCI format 0_1 _2min Dynamic switching of (2) without realizing K _0min Dynamic switching of (2).

Sixth, K _0min Ambiguity problem exists under inter-slot PDCCH repetition.

In the existing protocol, the case of intra-slot PDCCH repetition is discussed, but in the case of inter-slot PDCCH repetition, K is _0min There is a problem of blurring. Specifically, the method comprises the following steps:

on the one hand, as described in the background art, if two same candidate PDCCHs are located in different time slots respectively at different K _0min Within the effective range of (c), then K contained in the two identical PDCCH candidates ₀ Which K received _0min The constraints of (2) are unclear.

On the other hand, since they contain the same K _0min Are different, and thus K calculated from the two different time slots _0min Is different, there is K _0min The effective time of (2) is blurred. Exemplarily, as shown in fig. 12, the content of the first DCI transmitted through the first PDCCH candidate is the same as the content of the second DCI transmitted through the second PDCCH candidate, the time slot of the first DCI is time slot n, the time slot of the second DCI is time slot n +1, and both the time slot n and the time slot n +1 are at K _0min K included in the first DCI and the second DCI in the effective range of =3 _0min Are all 2. Suppose in the case of self-scheduling and no BWP handoff, i.e.

Currently validated K _0min A value of 3, that is, K _0minOld =3, in this case, if the subcarrier spacing of the cell is 15kHz, as can be derived from table 1, μ =0,z _μ And =1. Then, it can be calculated from the above equation (2) that>

If K is calculated according to the time slot n where the first DCI is positioned _0min Effective time of =2, then K _0min =2 takes effect starting from time slot n + 3; if K is calculated according to the time slot n +1 where the first DCI is positioned _0min Effective time of =2, then K _0min =2 comes into effect from time slot n +1+3, i.e. time slot n + 4. It is also unclear which time of effect to use.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Where in the description of this application, "/" indicates a relationship where the objects linked before and after are an "or", e.g., a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an association object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," and the like do not denote any order or importance, but rather the terms "first," "second," and the like do not denote any order or importance. Also, in the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.

The embodiment of the present application may be applied to an LTE system or an NR system, and may also be applied to other new systems facing the future, and the like, and the embodiment of the present application is not particularly limited to this. In addition, the term "system" may be used interchangeably with "network".

The embodiment of the present application may also be applied to various mobile communication scenarios, for example, point-to-point transmission between a base station and a UE, multi-hop/relay (relay) transmission between a base station and a UE, and Dual Connectivity (DC) or multi-connectivity between multiple base stations and a UE, which is not specifically limited in this embodiment of the present application. In addition, the embodiments of the present application are applicable to uplink, downlink, access link, backhaul (backhaul) link, sidelink (sidelink), and other transmissions.

Fig. 13 shows a communication system 13 according to an embodiment of the present application. The communication system 13 includes a network device 132, and one or more terminal devices 131 connected to the network device 132. Wherein, the terminal device 131 is connected with the network device 132 in a wireless manner. Alternatively, different terminal devices 131 may communicate with each other. The terminal device 131 may be fixed in position or may be movable.

It should be noted that fig. 13 is a schematic diagram, and although not shown, the communication system 13 may further include other network devices, for example, the communication system 13 may further include one or more of a core network device, a wireless relay device, and a wireless backhaul device, which is not specifically limited herein. The network device may be connected to the core network device in a wireless or wired manner. The core network device and the network device 132 may be different independent physical devices, or the function of the core network device and the logic function of the network device 132 may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the network device 132, which is not specifically limited in this embodiment of the present application.

Taking the example that the network device 132 shown in fig. 13 interacts with any terminal device 131, in this embodiment of the application, in a possible implementation manner, the network device 132 is used for the first timeThe first PDCCH is transmitted to the terminal device 131 on a slot, the first slot being associated with a first minimum scheduling offset limit. Terminal device 131 is configured to receive the first PDCCH from network device 132 on the first time slot. Network device 132 is further configured to send a second PDCCH to terminal device 131 on a second time slot, where the second time slot is associated with a second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission. Terminal device 131 is also configured to receive a second PDCCH from network device 132 on a second slot. The network device 132 is further configured to determine a third minimum scheduling offset limitation according to the first minimum scheduling offset limitation and/or the second minimum scheduling offset limitation, where the third minimum scheduling offset limitation is used to limit the slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ . The terminal device 131 is further configured to determine a third minimum scheduling offset limitation according to the first minimum scheduling offset limitation and/or the second minimum scheduling offset limitation. The specific implementation and technical effects of the solution will be described in detail in the following method embodiments, and are not described herein again.

Taking the example that the network device 132 shown in fig. 13 interacts with any terminal device 131 as an example, in this embodiment, in another possible implementation manner, the network device 132 is configured to send a first PDCCH to the terminal device 131 on a first time slot, where the first time slot is associated with a first minimum scheduling offset limit. Terminal device 131 is configured to receive a first PDCCH from network device 132 in a first time slot. Network device 132 is further configured to send a second PDCCH to terminal device 131 in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit, the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission. Terminal device 131 is also configured to receive a second PDCCH from network device 132 on a second slot. The specific implementation and technical effects of the scheme will be described in detail in the following method embodiments, and are not described herein again.

Taking the example of the network device 132 interacting with any terminal device 131 shown in fig. 13 as an example, in this embodiment of the present application, in yet another possible implementation manner, the network device 132 is configured to send the first PDCCH to the terminal device 131 on a first time slot, where the first time slot is associated with the first minimum scheduling offset limit. Terminal device 131 is configured to receive a first PDCCH from network device 132 in a first time slot. Network device 132 is further configured to send a second PDCCH to terminal device 131 in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit, the first time slot is earlier than the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission. Terminal device 131 is also configured to receive a second PDCCH from network device 132 on a second slot. The network device 132 is further configured to, if a fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, determine an effective time of the fourth minimum scheduling offset limit by using the first time slot or the second time slot as a reference, or by using the first PDCCH or the second PDCCH as a reference. The terminal device 131 is further configured to, if a fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, determine an effective time of the fourth minimum scheduling offset limit by using the first time slot or the second time slot as a reference, or by using the first PDCCH or the second PDCCH as a reference. The specific implementation and technical effects of the solution will be described in detail in the following method embodiments, and are not described herein again.

Optionally, the network device 132 in this embodiment is a device that accesses the terminal device 131 to a wireless network, and may be a base station (base station), an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless-fidelity (Wi-Fi) system, and the like; the present invention may also be a module or a unit that performs part of the functions of the base station, for example, a Centralized Unit (CU) or a Distributed Unit (DU). The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. In this application, a network device refers to a radio access network device unless otherwise specified.

Optionally, the terminal device 131 in this embodiment may be a device for implementing a wireless communication function, such as a terminal or a chip that can be used in a terminal. The terminal may be a UE, an access terminal, a terminal unit, a terminal station, a mobile station, a remote terminal, a mobile device, a wireless communication device, a terminal agent, or a terminal apparatus in a 5G network or a Public Land Mobile Network (PLMN) of future evolution. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device or a wearable device, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control) or unmanned driving (self), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transport security (smart), a wireless terminal in city (city), a wireless terminal in smart home (home), etc. The terminal device 131 may be fixed in position or movable, which is not specifically limited in this embodiment of the application.

Optionally, in this embodiment of the present application, the terminal device 131 includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Further, the embodiment of the present application does not particularly limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as communication can be performed by the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application. For example, the execution main body of the method provided in the embodiment of the present application may be the terminal device 131, or a functional module in the terminal device 131, which can call a program and execute the program; alternatively, the execution subject of the method provided in the embodiment of the present application may be the network device 132, or a functional module capable of calling a program and executing the program in the network device 132.

In other words, the related functions of the terminal device 131 or the network device 132 in this embodiment may be implemented by one device, may also be implemented by multiple devices together, and may also be implemented by one or more functional modules in one device, which is not specifically limited in this embodiment of the present invention. It is understood that the above functions may be network elements in a hardware device, or software functions running on dedicated hardware, or a combination of hardware and software, or virtualization functions instantiated on a platform (e.g., a cloud platform).

Optionally, as shown in fig. 14, a schematic structural diagram of a network device 132 and a terminal device 131 provided in this embodiment of the application is shown.

Among other things, terminal device 131 includes at least one processor 1311 and at least one transceiver 1313. Optionally, terminal device 131 may also include at least one memory 1312, at least one output device 1314, or at least one input device 1315.

The processor 1311, memory 1312, and transceiver 1313 are connected by a communication line. The communication link may include a path to communicate information between the aforementioned components.

The processor 1311 may be a general-purpose Central Processing Unit (CPU), other 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, a transistor logic device, a hardware component, or any combination thereof. The general purpose processor may be a microprocessor, but may be any conventional processor. In a specific implementation, the processor 1311 may also include multiple CPUs, and the processor 1311 may be a single-core processor or a multi-core processor, as an embodiment. A processor herein may refer to one or more devices, circuits, or processing cores that process data.

The memory 1312 may be a device having a storage function. Such as, but not limited to, read-only memory (ROM) or other types of static storage devices that may store static information and instructions, random Access Memory (RAM) or other types of dynamic storage devices that may store information and instructions, programmable read-only memory (PROM), erasable programmable PROM (EPROM), electrically erasable programmable ROM (electrically erasable programmable ROM-on, EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 1312 may be separate and coupled to the processor 1311 via a communication link. The memory 1312 may also be integrated with the processor 1311.

The memory 1312 is used for storing computer executable instructions for implementing the present invention, and is controlled by the processor 1311. In particular, the processor 1311 is configured to execute computer-executable instructions stored in the memory 1312 to implement the wireless communication method described in the embodiments of the present application.

Or, optionally, in this embodiment of the present application, the processor 1311 may also perform functions related to processing in the wireless communication method provided in the following embodiments of the present application, and the transceiver 1313 is responsible for communicating with other devices or a communication network, which is not specifically limited in this embodiment of the present application.

Optionally, the computer execution instruction in the embodiment of the present application may also be referred to as an application program code or a computer program code, which is not specifically limited in the embodiment of the present application.

The transceiver 1313 may use any transceiver or other type of device for communicating with other devices or communication networks, such as ethernet, radio Access Network (RAN), or Wireless Local Area Network (WLAN). The transceiver 1313 includes a transmitter (Tx) and a receiver (Rx).

The output device 1314, which is in communication with the processor 1311, may display information in a variety of ways. For example, the output device 1314 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like.

The input device 1315 is in communication with the processor 1311 and may accept user input in a variety of ways. For example, the input device 1315 may be a mouse, keyboard, touch screen device, or sensing device, among others.

The network device 132 includes at least one processor 1321, at least one transceiver 1323, and at least one network interface 1324. Optionally, network device 132 may also include at least one memory 1322. The processor 1321, memory 1322, transceiver 1323, and network interface 1324 are coupled via communications lines, among other things. The network interface 1324 is configured to connect with a core network device through a link (e.g., an S1 interface), or connect with a network interface of another network device through a wired or wireless link (e.g., an X2 interface) (not shown in fig. 14), which is not specifically limited in this embodiment of the present invention. In addition, the descriptions of the processor 1321, the memory 1322 and the transceiver 1323 refer to the descriptions of the processor 1311, the memory 1312 and the transceiver 1313 in the terminal device 131, and are not repeated here.

With reference to the schematic structural diagram of the terminal device 131 shown in fig. 14, fig. 15 is a specific structural form of the terminal device 131 provided in the embodiment of the present application.

Wherein, in some embodiments, the functions of the processor 1311 in fig. 14 may be implemented by the processor 110 in fig. 15.

In some embodiments, the functions of the transceiver 1313 in fig. 14 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, and the like in fig. 15. The mobile communication module 150 may provide a solution including wireless communication technology such as LTE, NR, or future mobile communication applied on the terminal device 131. The wireless communication module 160 may provide solutions including wireless communication technologies such as WLAN (e.g., wi-Fi network), bluetooth (BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared, and the like, which are applied to the terminal device 131. In some embodiments, antenna 1 of terminal device 131 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that terminal device 131 can communicate with networks and other devices through wireless communication techniques.

In some embodiments, the functions of the memory 1312 in fig. 14 may be implemented by the internal memory 121 in fig. 15 or an external memory or the like connected to the external memory interface 120.

In some embodiments, the functionality of output device 1314 in FIG. 14 may be implemented via display screen 194 in FIG. 15.

In some embodiments, the functionality of input device 1315 in fig. 14 may be implemented by a mouse, keyboard, touch screen device, or sensor module 180 in fig. 15.

In some embodiments, as shown in fig. 15, the terminal device 131 may further include one or more of an audio module 170, a camera 193, a key 1132, a SIM card interface 195, a USB interface 130, a charging management module 140, a power management module 141, and a battery 142.

It is to be understood that the structure shown in fig. 15 does not constitute a specific limitation to the terminal device 131. For example, in other embodiments of the present application, terminal device 131 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The following describes a wireless communication method provided in an embodiment of the present application in detail with reference to fig. 1 to 15.

As shown in fig. 16, a wireless communication method provided in this embodiment of the present application includes the following steps:

s1601, the network device sends a first PDCCH to the terminal device in the first time slot, and accordingly, the terminal device receives the first PDCCH from the network device in the first time slot. Wherein the first time slot is associated with a first minimum scheduling offset limit.

In this embodiment of the present application, for a terminal device, a "first PDCCH" means that the terminal device determines, through blind detection, that DCI corresponding to the terminal device is carried on the first PDCCH. The first PDCCH is one of a plurality of candidate PDCCHs that the terminal device determines may receive DCI corresponding to the first PDCCH, and the blind detection is a process of determining the first PDCCH from the plurality of candidate PDCCHs. The candidate PDCCHs are time-frequency resources which are determined by the base station through RRC parameters and used for bearing the PDCCHs or the DCI. The terminal device monitors the multiple candidate PDCCHs, which may be understood as that the terminal device determines a certain candidate PDCCH, that is, a first PDCCH, from the multiple candidate PDCCHs through correct channel estimation, demodulation, decoding, and CRC check on the multiple candidate PDCCHs, and can detect a PDCCH or DCI sent by the network device. That is, on the terminal device side, the first PDCCH is a PDCCH candidate, and can be understood as the first PDCCH candidate.

It should be noted that PDCCH is a generic term of a physical downlink control channel, and candidate PDCCHs also belong to PDCCH.

In this embodiment of the present application, the receiving, by the terminal device, the first PDCCH from the network device includes the above-mentioned blind detection process. Specifically, the terminal device performs channel estimation, demodulation, decoding and CRC check on multiple PDCCH candidates, and if the channel estimation, demodulation, decoding and CRC check can be correctly performed on a certain PDCCH candidate or certain PDCCH candidates, it indicates that the blind detection of the terminal device is successful, that is, the terminal device can receive the PDCCH sent by the network device on the PDCCH candidate or PDCCHs. In this embodiment of the present application, the first minimum scheduling offset limit is the number of one time slot, and the UE may determine a position where the PDSCH can be normally received according to the first minimum scheduling offset limit, or the UE may determine a position where the PDSCH can not be normally received according to the first minimum scheduling offset limit.

Illustratively, the first time slot is associated with a first minimum scheduling offset limit, which may be understood as the first time slot being within the effective range of the first minimum scheduling offset limit. Specifically, the effective range may be understood as one or more time slots corresponding to a certain signaling, or the UE may determine the one or more time slots directly according to the signaling, where the one or more time slots are applied to limit values of the slot offset received on the one or more time slots by using the first minimum scheduling offset limit. Here, the slot in which the first PDCCH is received is one of one or more slots in the effective range. Alternatively, the effective range may be understood as the number of time slots at which the slot offset is received, which is limited by the minimum scheduling offset limit corresponding to the effective range.

S1602, the network device sends a second PDCCH to the terminal device in a second time slot, and accordingly, the terminal device receives the second PDCCH from the network device in the second time slot. Wherein the second time slot is associated with a second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

In the embodiment of the present application, the meaning of the "second PDCCH" is the same as the meaning of the "first PDCCH", the meaning of the "second minimum scheduling offset limitation" is the same as the meaning of the "first minimum scheduling offset limitation", the relationship between the first slot and the first minimum scheduling offset limitation is the same as the relationship between the second slot and the second minimum scheduling offset limitation, and specific reference may be made to the description in step S1601, which is not repeated here.

It should be noted that the first time slot is different from the second time slot, that is, the time domain resources occupied by the first PDCCH and the second PDCCH are different. The frequency domain resources occupied by the first PDCCH and the second PDCCH may be the same or different, and the application does not limit this.

In the embodiment of the present application, the first PDCCH and the second PDCCH are used for PDCCH repetition transmission, which means that DCI included in the first PDCCH and the second PDCCH are completely the same.

Alternatively, step S1601 may be executed first, and then step S1602 is executed; alternatively, step S1602 may be executed first, and then step S1601 may be executed, which is not specifically limited in this embodiment of the application.

S1603, the terminal device determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit. The third minimum scheduling offset limit is used for limiting the time slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ 。

In the embodiments of the present application, exemplarily, "limit" may be understood as the third minimum scheduling offset limit and the slot offset K are expected ₀ Satisfying the above formula (1), if satisfied, the UE can normally schedule the UE including the timeslot offset K ₀ If not, the UE receives the PDSCH containing the time slot offset K ₀ For example, the UE regards the DCI as a false-alarm DCI and does not process the DCI, or determines that the DCI is an error scenario and discards the DCI.

Optionally, the determining, by the terminal device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the terminal device determines the first minimum scheduling offset limit as a third minimum scheduling offset.

In connection with the example shown in fig. 2, for example, the first slot may be n, and the first minimum scheduling offset limit is 1; the second time slot may be n +1 with a second minimum scheduling offset limit of 2. Then, the third minimum scheduling offset may be 1, that is, K ₀ Scheduling of =1 is the scheduling desired by the UE.

Optionally, the determining, by the terminal device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the terminal device determines the second minimum scheduling offset restriction as a third minimum scheduling offset restriction.

In connection with the example shown in fig. 2, for example, the first slot may be n, and the first minimum scheduling offset limit is 1; the second time slot may be n +1 with a second minimum scheduling offset limit of 2. Then, the third minimum scheduling offset may be 2, that is, K ₀ Scheduling of =1 is scheduling that is not desired by the UE.

Optionally, the determining, by the terminal device, a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit includes: the terminal device determines the third minimum scheduling offset limit to be the maximum or minimum of the first and second minimum scheduling offset limits. If the third minimum scheduling offset limit is determined according to the maximum value of the first minimum scheduling offset limit and the second minimum scheduling offset limit, the number of time slots between the time slot in which the scheduled PDSCH is located and the time slot in which the PDCCH scheduling the PDSCH is located is greater by combining the definitions of the time slot offset and the minimum scheduling offset limit, and in the interval time slots, the terminal device does not need to receive the PDSCH and can be in an idle or dormant state, which is beneficial to saving power consumption, but the scheduling delay is increased by more time slots. Correspondingly, if the third minimum scheduling offset limit is determined according to the minimum value of the first minimum scheduling offset limit and the second minimum scheduling offset limit, the number of time slots between the time slot in which the scheduled PDSCH is located and the time slot in which the PDCCH for scheduling the PDSCH is located is smaller, which is beneficial to reducing the scheduling delay, but increases the power consumption.

In connection with the example shown in fig. 2, for example, the first slot may be n, and the first minimum scheduling offset limit is 1; the second slot may be n +1 with a second minimum scheduling offset limit of 2.2 is the maximum value of the first and second minimum scheduling offset limits, and 1 is the minimum value of the first and second minimum scheduling offset limits. Then the third minimum scheduling offset may be 1 or 2.

S1604, the network device determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit.

In this embodiment of the application, a method for determining the third minimum scheduling offset limit by the network device is the same as the method for determining the third minimum scheduling offset limit by the terminal device, which may specifically refer to the related description of step S1603 above, and is not described herein again.

In this embodiment, the network device determines the third minimum scheduling offset restriction so as to generate DCI satisfying the restriction condition as much as possible.

Alternatively, step S1603 may be performed first, and then step S1604 may be performed; alternatively, step S1604 may be performed first, and then step S1603 may be performed; alternatively, step S1603 and step S1604 may be executed simultaneously, which is not specifically limited in this embodiment of the application.

In the wireless communication method provided by the application, when a terminal device receives a first PDCCH and a second PDCCH for PDCCH repeated transmission on two different time slots, and the two different time slots are respectively associated with different minimum scheduling offset limits, the terminal device can determine a third minimum scheduling offset limit according to the different minimum scheduling offset limits, so that K included in the two same PDCCHs is determined ₀ Constrained by a third minimum scheduling offset limit, and thus overcome K ₀ The constraint of which minimum scheduling offset limit is subject to is an unclear question. In addition, the above wireless communication method is performed on both the network device side and the terminal device side to unify the pair K of the network device and the terminal device ₀ Subject to the constraints of the third minimum scheduling offset limit.

As shown in fig. 17, another wireless communication method provided in the embodiment of the present application includes the following steps:

s1701, the network device sends the first PDCCH to the terminal device in the first time slot, and accordingly, the terminal device receives the first PDCCH from the network device in the first time slot. Wherein the first time slot is associated with a first minimum scheduling offset limit.

The description of step S1701 may refer to the description of step S1601, which is not repeated herein.

S1702, the network device sends the second PDCCH to the terminal device in the second time slot, and accordingly, the terminal device receives the second PDCCH from the network device in the second time slot. Wherein the second time slot is associated with a second minimum scheduling offset limit, the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

The related description of step S1702 may refer to the related description of step S1602, and is not repeated herein.

In the wireless communication method provided by the present application, the two minimum scheduling offset limits associated with the two different time slots are the same, that is, the first PDCCH and the second PDCCH that are not allowed to be transmitted by the network device are respectively limited by different minimum scheduling offset limits. Thus, the K contained in the two identical PDCCHs is clarified ₀ Constrained by the first minimum scheduling offset limit or the second minimum scheduling offset limit, and further overcoming K ₀ The constraint of which minimum scheduling offset limit is subject to is an unclear question.

As shown in fig. 18, a further wireless communication method provided in the embodiment of the present application includes the following steps:

s1801, the network device sends the first PDCCH to the terminal device in the first time slot, and accordingly, the terminal device receives the first PDCCH from the network device in the first time slot. Wherein the first time slot is associated with a first minimum scheduling offset limit.

For the related description of step S1801, reference may be made to the related description of step S1601, which is not described herein again.

S1802, the network device sends a second PDCCH to the terminal device in a second time slot, and accordingly, the terminal device receives the second PDCCH from the network device in the second time slot. Wherein the second time slot is associated with a second minimum scheduling offset limit, the first time slot is earlier than the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

For the related description of step S1802, reference may be made to the related description of step S1602, and details are not repeated herein.

S1803, if the fourth minimum scheduling offset constraint in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset constraint, the terminal device uses the first time slot or the second time slot as a reference, or the terminal device uses the first PDCCH or the second PDCCH as a reference, so as to determine an effective time of the fourth minimum scheduling offset constraint.

In the embodiment of the present application, the terminal device refers to the first time slot or the second time slot, which may be understood as that the terminal device refers to the first time slot or the second time slot as a reference time slot (reference slot).

In the embodiment of the present application, since the terminal device side is involved in the blind detection process, the received first PDCCH or second PDCCH is a PDCCH candidate, and therefore, taking the first PDCCH or second PDCCH as a reference, it can be understood that the first PDCCH or second PDCCH is taken as a reference PDCCH candidate (reference PDCCH candidate).

In this embodiment of the present application, the fourth minimum scheduling offset restriction in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset restriction, that is, the newly indicated minimum scheduling offset restriction is different from the currently applied minimum scheduling offset restriction, and a value of the minimum scheduling offset restriction needs to be updated.

In the embodiment of the present application, reference may be made to the step S1601 for understanding the effective time, which is not described herein again.

With reference to the example shown in fig. 12, the first time slot is a time slot n, the second time slot is a time slot n +1, the first minimum scheduling offset limit and the second minimum scheduling offset limit are both 3, the fourth minimum scheduling offset limit included in the first PDCCH and the second PDCCH is 2, and the fourth minimum scheduling offset limit is different from the second minimum scheduling offset limit. In the case of self-scheduling and no BWP switching, X =3 may be calculated. The second time slot n +1 may be taken as a reference, or the second PDCCH may be taken as a reference, in which case the fourth minimum scheduling offset restriction comes into effect from time slot n +1+3, i.e. time slot n + 4. Alternatively, time slot n may be used as a reference, or the first PDCCH may be used as a reference, in which case the fourth minimum scheduling offset restriction takes effect starting from time slot n + 3.

S1804, if the fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, the network device uses the first time slot or the second time slot as a reference, or the network device uses the first PDCCH or the second PDCCH as a reference, so as to determine an effective time of the fourth minimum scheduling offset limit.

Optionally, step S1803 may be executed first, and then step S1804 may be executed; alternatively, step S1804 may be performed first, and then step S1803 may be performed; or step S1803 and step S1804 may be executed simultaneously, which is not specifically limited in this embodiment of the application.

In the wireless communication method provided by the present application, when the fourth minimum scheduling offset restriction is different from the second minimum scheduling offset restriction, the terminal device can select the PDCCH or the slot as a reference to determine the effective time of the fourth minimum scheduling offset restriction. Therefore, the problem that which one is used when multiple possible effective times exist in the inter-slot PDCCH repeated transmission can be solved. In addition, the above-described wireless communication method is performed on both the network device side and the terminal device side to unify the understanding of the network device and the terminal device for the effective time.

It should be noted that the above embodiments all use the slot offset as K for downlink scheduling ₀ For illustration, the slot offset may also be K for uplink scheduling ₂ The embodiment of the present application is not limited to this.

Wherein, the actions of the terminal device in the above embodiments may be executed by the processor 1311 in the terminal device 131 shown in fig. 14 calling the application program code stored in the memory 1312 to instruct the terminal device, or the actions of the terminal device in the above embodiments may be executed by the processor 110 in the terminal device 131 shown in fig. 15 calling the application program code stored in the memory (including the internal memory 121 and/or the external memory 120) to instruct the terminal device; the actions of the network device in the embodiments described above may be performed by the processor 1321 in the network device 132 of fig. 14 invoking application program code stored in the memory 1322 to instruct the network device to perform. This embodiment does not set any limit to this.

It is to be understood that, in the above embodiments, the method and/or the steps implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) available for the terminal device or a device including the terminal device; the methods and/or steps implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) that may be used in the network device or a device that contains the network device.

It is understood that the terminal device or the network device includes a hardware structure and/or a software module for performing the respective functions in order to implement the above functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. 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.

In the embodiment of the present application, the terminal device or the network device may be divided into function modules according to the method embodiment, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

For example, the terminal device or the network device in the embodiment of the present application may be implemented in the form of the communication apparatus 190 shown in fig. 19. The communication device 190 includes a transceiver module 191. The transceiver module 191, which may also be referred to as a transceiver unit, is used to implement a transceiving function, and may be, for example, a transceiving circuit, a transceiver, or a communication interface.

Taking the communication device 190 as an example of the terminal device in the foregoing method embodiment, then:

the communication device 190 also includes a processing module 192. A transceiver module 191 configured to receive a first physical downlink control channel PDCCH from a network device on a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; a transceiver module 191 further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; a processing module 192 configured to determine a third minimum scheduling offset limitation according to the first minimum scheduling offset limitation and/or the second minimum scheduling offset limitation, where the third minimum scheduling offset limitation is used to limit the slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ (ii) a The first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

In one possible implementation, the processing module 192 is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and includes: for determining the first minimum scheduling offset limit as the third minimum scheduling offset.

In one possible implementation, the processing module 192 is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and includes: for determining the second minimum scheduling offset limitation as a third minimum scheduling offset limitation.

In one possible implementation, the processing module 192 is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and includes: for determining the third minimum scheduling offset limit as the maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

A transceiver module 191 configured to receive a first physical downlink control channel PDCCH from a network device on a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; a transceiver module 191 further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit; the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

The communication device 190 also includes a processing module 192. A transceiver module 191, configured to receive a first physical downlink control channel PDCCH from a network device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; a transceiver module 191 further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission; a processing module 192, configured to, if a fourth minimum scheduling offset constraint in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset constraint, use the first time slot or the second time slot as a reference, or use the first PDCCH or the second PDCCH as a reference, to determine an effective time of the fourth minimum scheduling offset constraint.

Taking the communication device 190 as the network device in the foregoing method embodiment as an example, then:

the communication device 190 also includes a processing module 192. A transceiver module 191, configured to send a first physical downlink control channel PDCCH to a terminal device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; a transceiver module 191, further configured to send a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit; a processing module 192, configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, where the third minimum scheduling offset limit is used to limit the slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ (ii) a The first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

In one possible implementation, the processing module 192 is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and includes: for determining the second minimum scheduling offset restriction as a third minimum scheduling offset restriction.

A transceiver module 191, configured to send a first physical downlink control channel PDCCH to a terminal device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; a transceiver module 191, further configured to send a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit; the first minimum scheduling offset limit and the second minimum scheduling offset limit are the same, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

The communication device 190 also includes a processing module 192. A transceiver module 191, configured to send a first physical downlink control channel PDCCH to a terminal device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit; a transceiver module 191, further configured to send a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit, and the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission; a processing module 192, configured to, if a fourth minimum scheduling offset constraint in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset constraint, use the first time slot or the second time slot as a reference, or use the first PDCCH or the second PDCCH as a reference, to determine an effective time of the fourth minimum scheduling offset constraint.

All relevant contents of the steps related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the present embodiment, the communication device 190 is presented in a form in which the respective functional modules are divided in an integrated manner. A "module" herein may refer to a particular ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that provides the functionality described herein.

When the communication device 190 is the terminal device in the above method embodiment, in a simple embodiment, the communication device 190 may take the form of the terminal device 131 shown in fig. 14.

For example, the processor 1311 in the terminal device 131 shown in fig. 14 may cause the terminal device 131 to execute the wireless communication method in the foregoing method embodiment by calling a computer stored in the memory 1312 to execute the instructions. Specifically, the functions/implementation procedures of processing module 192 in fig. 19 may be implemented by processor 1311 in terminal device 131 in fig. 14 calling a computer executing instruction stored in memory 1312. The function/implementation procedure of the transceiver module 191 in fig. 19 may be implemented by the transceiver 1313 shown in fig. 14.

Alternatively, when the communication device 190 is the terminal device in the above method embodiment, in a simple embodiment, the communication device 190 may take the form of the terminal device 131 shown in fig. 15.

For example, the processor 110 in the terminal device 131 shown in fig. 15 may execute the instructions by calling a computer stored in a memory (including the internal memory 120 or an external memory connected to the external memory interface 121) so that the terminal device 131 executes the wireless communication method in the above-described method embodiment. Specifically, the functions/implementation procedures of the transceiver module 191 and the processing module 192 in fig. 19 may be implemented by the processor 110 in the terminal device 131 shown in fig. 15 calling a computer stored in a memory to execute instructions. Alternatively, the function/implementation process of the processing module 192 in fig. 19 may be implemented by the processor 110 in the terminal device 131 shown in fig. 15 calling a computer executing instruction stored in a memory, and the function/implementation process of the transceiver module 191 in fig. 19 may be implemented by the wireless communication module 160 shown in fig. 15.

Alternatively, when the communication device 190 is a network device in the above method embodiments, in a simple embodiment, the communication device 190 may take the form of the network device 132 shown in fig. 14.

For example, processor 1321 in network device 132 shown in fig. 14 may cause network device 132 to perform the wireless communication method in the above-described method embodiments by invoking computer-executable instructions stored in memory 1322. In particular, the functions/implementations of processing module 192 in fig. 19 may be implemented by processor 1321 in network device 132 in fig. 14 invoking computer-executable instructions stored in memory 1322. The function/implementation procedure of the transceiver module 191 in fig. 19 may be implemented by the transceiver 1323 shown in fig. 14.

Since the communication device 190 provided in this embodiment can perform the above-mentioned wireless communication method, the technical effects obtained by the communication device 190 can refer to the above-mentioned method embodiments, and are not described herein again.

It should be noted that one or more of the above modules or units may be implemented in software, hardware or a combination of both. When any of the above modules or units are implemented in software, which is present as computer program instructions and stored in a memory, a processor may be used to execute the program instructions and implement the above method flows. The processor may be built in an SoC (system on chip) or ASIC, or may be a separate semiconductor chip. The processor may further include necessary hardware accelerators such as Field Programmable Gate Arrays (FPGAs), PLDs (programmable logic devices), or logic circuits for implementing dedicated logic operations, in addition to the core for executing software instructions to perform operations or processes.

When the above modules or units are implemented in hardware, the hardware may be any one or any combination of a CPU, a microprocessor, a Digital Signal Processing (DSP) chip, a Micro Controller Unit (MCU), an artificial intelligence processor, an ASIC, an SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator, or a discrete device that is not integrated, and may run necessary software or be independent of software to perform the above method flow.

Optionally, an embodiment of the present application further provides a chip system, including: at least one processor coupled with the memory through the interface, and an interface, the at least one processor causing the method of any of the above method embodiments to be performed when the at least one processor executes the computer program or instructions in the memory. In one possible implementation, the first device further includes a memory. Optionally, the chip system may be formed by a chip, and may also include the chip and other discrete devices, which is not specifically limited in this embodiment of the present application.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions 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 can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of wireless communication, comprising:

the method comprises the steps that terminal equipment receives a first Physical Downlink Control Channel (PDCCH) from network equipment on a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit;

the terminal device receiving a second PDCCH from the network device over a second time slot, the second time slot being associated with a second minimum scheduling offset limit;

the terminal equipment determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, wherein the third minimum scheduling offset limit is used for limiting the time slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ ；

Wherein the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

2. The method according to claim 1, wherein the terminal device determines a third minimum scheduling offset limitation according to the first minimum scheduling offset limitation and/or the second minimum scheduling offset limitation, comprising:

the terminal device determines the first minimum scheduling offset limit as the third minimum scheduling offset.

3. The method of claim 1, wherein the determining, by the terminal device, a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

the terminal device determines the second minimum scheduling offset limit as the third minimum scheduling offset limit.

4. The method of claim 1, wherein the determining, by the terminal device, a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

the terminal device determines the third minimum scheduling offset limit to be a maximum value or a minimum value of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

5. A method of wireless communication, comprising:

wherein the first minimum scheduling offset limit is the same as the second minimum scheduling offset limit, the first time slot is different from the second time slot, and the first PDCCH and the second PDCCH are used for PDCCH repeated transmission.

6. A method of wireless communication, comprising:

the terminal equipment receives a first Physical Downlink Control Channel (PDCCH) from network equipment on a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit;

the terminal device receiving a second PDCCH from the network device over a second time slot associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission;

if a fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, the terminal device uses the first time slot or the second time slot as a reference, or the terminal device uses the first PDCCH or the second PDCCH as a reference, so as to determine an effective time of the fourth minimum scheduling offset limit.

7. A method of wireless communication, comprising:

the method comprises the steps that network equipment sends a first Physical Downlink Control Channel (PDCCH) to terminal equipment in a first time slot, wherein the first time slot is associated with a first minimum scheduling offset limit;

the network device transmitting a second PDCCH to the terminal device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit;

the network equipment determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, wherein the third minimum scheduling offset limit is used for limiting the time slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ ；

8. The method of claim 7, wherein the network device determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and wherein the determining comprises:

the network device determines the first minimum scheduling offset limit as the third minimum scheduling offset.

9. The method of claim 7, wherein the network device determines a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, and wherein the determining comprises:

the network device determines the second minimum scheduling offset limit as the third minimum scheduling offset limit.

10. The method according to claim 7, wherein the network device determines a third minimum scheduling offset limitation according to the first minimum scheduling offset limitation and/or the second minimum scheduling offset limitation, comprising:

the network device determines the third minimum scheduling offset limit to be a maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

11. A method of wireless communication, comprising:

the network device sends a second PDCCH to the terminal device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit;

12. A method of wireless communication, comprising:

the network device transmitting a second PDCCH to the terminal device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission;

if a fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, the network device uses the first time slot or the second time slot as a reference, or the network device uses the first PDCCH or the second PDCCH as a reference, so as to determine an effective time of the fourth minimum scheduling offset limit.

13. A communication apparatus, characterized in that the communication apparatus comprises: a transceiver module and a processing module;

the transceiver module is configured to receive a first physical downlink control channel PDCCH from a network device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit;

the transceiver module is further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit;

the processing module is configured to determine a third minimum scheduling offset limit according to the first minimum scheduling offset limit and/or the second minimum scheduling offset limit, where the third minimum scheduling offset limit is used to limit a slot offset K in the first PDCCH and the second PDCCH ₀ Or K ₂ ；

14. The communications apparatus as claimed in claim 13, wherein the processing module configured to determine a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

for determining the first minimum scheduling offset limit as the third minimum scheduling offset.

15. The communications apparatus as claimed in claim 13, wherein the processing module configured to determine a third minimum scheduling offset limitation according to the first minimum scheduling offset limitation and/or the second minimum scheduling offset limitation comprises:

for determining the second minimum scheduling offset limit as the third minimum scheduling offset limit.

16. The communications apparatus as claimed in claim 13, wherein the processing module configured to determine a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

for determining the third minimum scheduling offset limit as a maximum or minimum of the first minimum scheduling offset limit and the second minimum scheduling offset limit.

17. A communication apparatus, characterized in that the communication apparatus comprises: a transceiver module;

18. A communication apparatus, characterized in that the communication apparatus comprises: a transceiver module and a processing module;

the transceiver module is further configured to receive a second PDCCH from the network device on a second time slot, the second time slot being associated with a second minimum scheduling offset limit, wherein the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission;

the processing module is configured to, if a fourth minimum scheduling offset limit in the first PDCCH and the second PDCCH is different from the second minimum scheduling offset limit, determine an effective time of the fourth minimum scheduling offset limit by using the first time slot or the second time slot as a reference, or by using the first PDCCH or the second PDCCH as a reference.

19. A communication apparatus, characterized in that the communication apparatus comprises: the device comprises a receiving and sending module and a processing module;

the transceiver module is configured to send a first physical downlink control channel PDCCH to a terminal device at a first time slot, where the first time slot is associated with a first minimum scheduling offset limit;

the transceiver module is further configured to send a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit;

20. The communications apparatus as claimed in claim 19, wherein the processing module configured to determine a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

21. The communications apparatus as claimed in claim 19, wherein the processing module configured to determine a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

22. The communications apparatus as claimed in claim 19, wherein the processing module configured to determine a third minimum scheduling offset restriction according to the first minimum scheduling offset restriction and/or the second minimum scheduling offset restriction comprises:

23. A communications apparatus, comprising: a transceiver module;

24. A communications apparatus, comprising: a transceiver module and a processing module;

the transceiver module is further configured to transmit a second PDCCH to the terminal device in a second time slot, where the second time slot is associated with a second minimum scheduling offset limit, and the first time slot is earlier than the second time slot; the first PDCCH and the second PDCCH are used for PDCCH repeated transmission;

25. A communication system, comprising: a terminal device performing the method of any of claims 1-4 and a network device performing the method of any of claims 7-10; or a terminal device performing the method of claim 5 and a network device performing the method of claim 11; or a terminal device performing the method of claim 6 and a network device performing the method of claim 12.

26. A communications apparatus, comprising: a memory for storing programs and a processor coupled with the memory for executing the programs stored by the memory; the processor executes the program when the communication device is running, causing the communication device to perform the method of any of the preceding claims 1-4; or cause the communication device to perform the method of claim 5; or cause the communication device to perform the method of claim 6 above.

27. A communications apparatus, comprising: a memory for storing programs and a processor coupled with the memory for executing the programs stored by the memory; the processor executes the program when the communication device is running, causing the communication device to perform the method of any of the preceding claims 7-10; or cause the communication device to perform the method of claim 11; or cause the communication device to perform the method of claim 12 above.

28. A computer-readable storage medium, having stored thereon a computer program which, when executed by a computer, causes the computer to perform the method of any of claims 1-4, 5, 6, 7-10, 11 or 12.