CN116017498A

CN116017498A - Wireless communication method and device

Info

Publication number: CN116017498A
Application number: CN202111235355.5A
Authority: CN
Inventors: 刘俊; 常俊仁; 彭文杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2023-04-25
Also published as: WO2023066102A1

Abstract

The embodiment of the application provides a wireless communication method and device, which can perfect the criterion that a communication device determines to accept or reject SL DRX configuration. Specifically, the method comprises the following steps: the first communication device receives first information, the first information comprising first side-link discontinuous reception, SL, DRX, configuration information; the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device.

Description

Wireless communication method and device

Technical Field

Embodiments of the present application relate to the field of communications, and more particularly, to a method and apparatus for wireless communications.

Background

In a communication system, a discontinuous reception (discontinuous reception, DRX) mechanism may be employed by a terminal device to reduce power consumption of the terminal device. The DRX mechanism may be used on a null interface where the terminal device communicates with the network device, e.g. Uu interface, or also on an interface between the terminal device and the terminal device, e.g. a Side Link (SL) interface or a PC5 interface. For the DRX mechanism used on the interface between the terminal device and the terminal device, which can be configured by the transmitting terminal device or its network device, how to optimize the configuration mode of SL DRX is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and device, which can perfect the criterion of the communication equipment for determining to accept or reject SL DRX configuration and optimize the configuration mode of SL DRX.

In a first aspect, a method of wireless communication is provided, which may be performed by a first communication device, or by a component (e.g., chip, processor, etc.) in the first communication device, including: the first communication device receives first information, the first information comprising first side-link discontinuous reception, SL, DRX, configuration information; the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device.

By defining that the first communication equipment determines to accept or reject the received SL DRX configuration information according to the state information of the first communication equipment and the received SL DRX configuration information, the criterion of the communication equipment for determining to accept or reject the SL DRX configuration is perfected, and the configuration mode of SL DRX is optimized.

In a possible implementation manner, the state information of the first communication device includes at least one of the following: SL DRX configuration information for a second SL connection of the first communication device; transmitting resource configuration information of the first communication device; energy saving requirement information of the first communication device; the power information of the first communication device; the first communication device suggests or expects SL DRX configuration information.

In a possible implementation manner, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the SLDRX configuration information of the second SL connection.

By matching the first SL DRX configuration information with the SL DRX configuration information of the second SL connection of the first communication device, the newly configured SL DRX configuration of the first communication device (i.e. the SL DRX configuration of the second communication device to the first communication device) may be made to overlap as much as possible with the active time corresponding to the previously configured SL DRX configuration, so that the wake-up time of the first communication device is made as short as possible to save power consumption. When the SL DRX configuration information of the second SL connection of the first communication device is "the SL DRX configuration when the first communication device is the transmitting end", the activation time of the first SL DRX is matched with the activation time of the SL DRX configuration when the first communication device is the transmitting end as much as possible, so that the deep sleep time of the first communication device is increased to reduce the power consumption.

In a possible implementation manner, the first SL DRX configuration information does not match the DRX configuration information of the second SL connection, including: and the overlapping degree of the first activation time corresponding to the first SL DRX configuration information and the second activation time corresponding to the SL DRX configuration information of the second SL connection is smaller than or equal to a first threshold value.

In a possible implementation manner, the SL DRX configuration information of the second SL connection includes: the first communication device is used as SL DRX configuration information of a sending end, and/or the first communication device is used as other SL DRX configuration information of a receiving end except the first SL DRX configuration information.

In a possible implementation manner, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the transmission resource configuration information of the first communication equipment.

By matching the first SL DRX configuration information with the transmission resource configuration information of the first communication device, the SL DRX configuration newly configured by the first communication device may be made to not affect SCI monitoring required by the first communication device to transmit traffic.

In a possible implementation manner, the first SL DRX configuration information does not match with transmission resource configuration information of the first communication device, including: and the time of overlapping the activation time indicated by the first SLDRX configuration information and the time area indicated by the transmission resource configuration information in the first time is smaller than or equal to a second threshold value.

In a possible implementation manner, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the energy-saving requirement information of the first communication equipment.

By matching the first SL DRX configuration information with the power saving requirement information of the first communication device, the power saving efficiency of the SL DRX configuration newly configured by the first communication device may be made to conform to the power saving requirement of the first communication device.

In a possible implementation manner, the first SL DRX configuration information does not match with power saving requirement information of the first communication device, including: the first energy-saving gain corresponding to the first SL DRX configuration information is smaller than or equal to the second energy-saving gain corresponding to the energy-saving requirement information; or, the ratio of the first energy saving gain corresponding to the first SL DRX configuration information to the second energy saving gain corresponding to the energy saving requirement information is smaller than or equal to a third threshold value; or, the first energy saving gain corresponding to the first SL DRX configuration information is less than or equal to a fourth threshold.

In a possible implementation manner, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the activation time corresponding to the first SL DRX configuration information is larger than or equal to a fifth threshold value or the energy saving gain corresponding to the first SL DRX configuration information is smaller than a sixth threshold value and the electric quantity information is smaller than a seventh threshold value.

By matching the first SL DRX configuration information with the power information of the first communication device, the power saving efficiency of the SL DRX configuration newly configured by the first communication device may be made to satisfy the current power state of the first communication device.

In a possible implementation manner, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the SL DRX configuration information suggested or expected by the first communication equipment.

By matching the first SL DRX configuration information with the first communication device suggested or desired SL DRX configuration information, the newly configured SL DRX configuration of the first communication device may be made to conform to expectations in terms of power saving etc. of the first communication device.

In a possible implementation, the first SL DRX configuration information does not match SL DRX configuration information proposed or expected by the first communication device, including: and the overlapping degree of the first activation time of the first SL DRX configuration information and the third activation time corresponding to the proposed or expected SL DRX configuration information is smaller than or equal to a first threshold value.

In a possible implementation manner, the method further includes: the first communication device sends second information, where the second information is used to indicate that the first SL DRX configuration is rejected, or the second information is used to indicate that the first SL DRX configuration fails.

In a possible implementation manner, the first SL is an SL between the first communication device and the second communication device.

In a possible implementation manner, the first communication device is a receiving end.

In a second aspect, a method of wireless communication is provided, which may be performed by a second communication device, or by a component (e.g., chip, processor, etc.) in the second communication device, including: the second communication device sends first information, wherein the first information comprises first side link discontinuous reception SL DRX configuration information; the second communication device receives second information, where the second information is used to instruct a first communication device to reject the first SL DRX configuration, or the second information is used to instruct the first SL DRX configuration to fail.

In a third aspect, a method of wireless communication is provided, which may be performed by a second communication device, or by a component (e.g., chip, processor, etc.) in the second communication device, including: the method comprises the steps that a second communication device determines that a first hybrid automatic repeat request (HARQ) process of the second communication device is not provided with or is not configured with a first channel or a first resource, and the first channel or the first resource is used for bearing feedback information corresponding to the first HARQ process; and the second communication device determines that the network device does not send or schedule the resource configuration information of a first destination or a first SL connection according to the running condition of a timer of a discontinuous reception DRX mechanism corresponding to the first HARQ process, wherein the first destination or the first SL connection is the destination or the SL connection corresponding to the first HARQ process.

By providing that the network device does not send or schedule related resource configuration information in the case that the communication device does not send feedback information to the network device, the network device can avoid waste of communication resources or RX packet loss caused by uncertain activation time (active time) of the RX.

In a possible implementation manner, the determining, by the second communication device, resource configuration information of the first destination or the first SL connection that is not sent or not scheduled by the network device according to the running condition of a timer of the DRX mechanism corresponding to the first HARQ process includes: determining that the network device does not send or schedule resource configuration information for the first destination or the first SL connection when at least one of: only a retransmission timer retransmission timer corresponding to the first HARQ process is running on DRX of a first interface of the second communication device; the retransmission timer retransmission timer corresponding to the first HARQ process is running on the DRX of the first interface, and the retransmission timer retransmission timer corresponding to the first destination or the first SL connection for other HARQ processes except the first HARQ process is not running or not running; the duration timer on duration timer and the inactivity timer corresponding to the first destination or the first SL connection on the DRX of the second interface of the second communication device are neither running nor running.

In a possible implementation manner, the second communication device determines that a first HARQ process of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process, and includes: the second communication device determining the first channel which is not configured or not configured for carrying feedback information of a HARQ process corresponding to a first destination or a first SL connection of the second communication device; or, the second communication device determines that the feedback resource of the HARQ process corresponding to the first destination or the first side link SL connection of the second communication device is not or is not configured on the air interface in communication with the network device; or, the second communication device determines that there is no or no resource configured to send HARQ feedback corresponding to a first destination or a first side uplink SL connection of the second communication device to the network device; or, the second communication device determines that no or no SL HARQ feedback resources of a first HARQ process corresponding to a first destination or a first side-link SL connection of the second communication device are configured on an air interface in communication with a network device; or, the second communication device determines resources that are not or not configured for transmitting SL HARQ feedback of a first HARQ process corresponding to a first destination or a first side uplink SL connection of the second communication device to the network device; or the second communication device determines that the third information received from the network device indicates that a first destination of the second communication device or a first hybrid automatic repeat request (HARQ) process corresponding to a first Side Link (SL) connection does not have the first channel resource, and the first channel is used for carrying feedback information of the first HARQ process.

In a possible implementation manner, the second communication device determines that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection, including: the second communication device determines that the network device does not send or schedule new transmissions or retransmissions of other HARQ processes except the first HARQ process corresponding to the first destination or the first SL connection; and/or the second communication device determines that the network device does not send or schedule a new transmission of the first HARQ process corresponding to the first destination or the first SL connection.

In a possible implementation manner, the first channel includes a physical uplink control channel PUCCH or a physical uplink shared channel PUSCH.

In a possible implementation manner, the first HARQ process is an HARQ process corresponding to a first destination or a first SL connection of the second communication device on an air interface where the second communication device communicates with the network device.

In a possible implementation manner, feedback information of the first HARQ process is transmitted through an air interface in which the second communication device communicates with the network device.

In a fourth aspect, a method of wireless communication is provided, which may be performed by a network device or by a component (e.g., chip, processor, etc.) in the network device, including: the network equipment determines that a first hybrid automatic repeat request (HARQ) process of the second communication equipment does not have or is not configured with a first channel or a first resource, wherein the first channel or the first resource is used for bearing feedback information corresponding to the first HARQ process; and the network equipment determines that the resource configuration information of a first destination or a first SL connection is not transmitted or not scheduled according to the running condition of a timer of a DRX mechanism corresponding to the first HARQ process, wherein the first destination or the first SL connection is the destination or the SL connection corresponding to the first HARQ process.

In a possible implementation manner, the determining, by the network device, the resource configuration information of the first destination or the first SL connection according to the running condition of the DRX timer corresponding to the first HARQ process includes: determining not to send or not to schedule the resource configuration information of the first destination or the first SL connection when at least one of: only a retransmission timer retransmission timer corresponding to the first HARQ process is running on DRX of a first interface of the second communication device; the retransmission timer retransmission timer corresponding to the first HARQ process is running on the DRX of the first interface, and the retransmission timer retransmission timer corresponding to the first destination or the first SL connection for other HARQ processes except the first HARQ process is not running or not running; the duration timer on duration timer and the inactivity timer corresponding to the first destination or the first SL connection on the DRX of the second interface of the second communication device are neither running nor running.

In a possible implementation manner, the description of "the network device determines that the first HARQ process of the second communication device is not configured with or is not configured with the first channel or the first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process" may refer to the description in the second possible implementation manner in the third aspect, which is not repeated herein.

In a possible implementation, the network device determining not to send or not to schedule the resource configuration information of the first destination or the first SL connection includes: the network device determining that new transmissions or retransmissions of other HARQ processes than the first HARQ process corresponding to the first destination or the first SL connection are not sent or not scheduled; and/or the network device determines not to send or not to schedule a new transmission of the first HARQ process corresponding to the first destination or the first SL connection.

In a fifth aspect, a method of wireless communication is provided, the method being executable by a second communication device, and also being executable by a component (e.g., chip, processor, etc.) in the second communication device, comprising: the second communication device determines that a first channel or a first resource is not configured or not configured in a first hybrid automatic repeat request (HARQ) process corresponding to a first destination or a first Side Link (SL) connection of the second communication device, wherein the first channel or the first resource is used for bearing feedback information corresponding to the first HARQ process; the second communication device sends indication information, where the indication information is used to indicate that the first HARQ process of the second communication device is not configured or not configured with the first channel or the first resource.

By providing that the communication device indicates to the opposite side communication device when the communication device does not send feedback information to the network device, the opposite side communication device receives the indication and then performs corresponding operation, so that the waste of communication resources or the packet loss of the opposite side communication device caused by the fact that the network device is uncertain about the activation time of the opposite side communication device can be avoided.

In a possible implementation, the HARQ feedback of the first HARQ process is disabled.

In a possible implementation manner, the second communication device determines that a first HARQ process corresponding to a first destination or a first side link SL connection of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process, and includes: the second communication device determining the first channel which is not configured or not configured for carrying feedback information of a HARQ process corresponding to a first destination or a first SL connection of the second communication device; or, the second communication device determines that the feedback resource of the HARQ process corresponding to the first destination or the first side link SL connection of the second communication device is not or is not configured on the air interface in communication with the network device; or, the second communication device determines that there is no or no resource configured to send HARQ feedback corresponding to a first destination or a first side uplink SL connection of the second communication device to a network device; or, the second communication device determines that no or no SL HARQ feedback resources of a first HARQ process corresponding to a first destination or a first side-link SL connection of the second communication device are configured on an air interface in communication with a network device; or, the second communication device determines resources that are not or not configured for sending SL HARQ feedback of a first destination or a first side uplink SL connection of the second communication device to a network device for a corresponding first HARQ process; or the second communication device determines that the third information received from the network device indicates that a first destination of the second communication device or a first hybrid automatic repeat request (HARQ) process corresponding to a first Side Link (SL) connection does not have the first channel resource, and the first channel is used for carrying feedback information of the first HARQ process.

In a sixth aspect, a method of wireless communication is provided, the method being executable by a first communication device, and also being executable by a component (e.g., chip, processor, etc.) in the first communication device, comprising: the method comprises the steps that a first communication device receives indication information, wherein the indication information is used for indicating that a first HARQ (hybrid automatic repeat request) process corresponding to a first destination or a first side link SL connection of a second communication device is not configured with a first channel or a first resource, and the first channel or the first resource is used for bearing feedback information of the first HARQ process; the first communication device starts a retransmission timer retransmission timer corresponding to the first HARQ process.

In a possible implementation manner, the first communication device starts a retransmission timer retransmission timer corresponding to the first HARQ process, and further includes: the first communication device starts the retransmission timer retransmission timer after or when the HARQ RTT timer corresponding to the first HARQ process expires; or, the first communication device starts the retransmission timer retransmission timer in a first symbol or a first slot after the physical side uplink feedback channel PSFCH transmission or PSFCH resource ends.

In a possible implementation, the first symbol or the first slot includes a first symbol or a first slot.

In a possible implementation manner, the description of "the first destination of the second communication device or the first HARQ process corresponding to the first side link SL connection is not configured or not configured with the first channel, and the first channel is used to carry feedback information of the first HARQ process" may refer to the description in the third possible implementation manner in the fifth aspect, which is not repeated herein.

In a seventh aspect, an apparatus for wireless communication is provided, including a receiving unit configured to receive first information, the first information including first side-link discontinuous reception SL DRX configuration information; the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device.

In a possible implementation manner, the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the processing unit determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the SLDRX configuration information of the second SL connection.

In a possible implementation manner, the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the processing unit determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the transmission resource configuration information of the first communication device.

In a possible implementation manner, the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the processing unit determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the energy-saving requirement information of the first communication device.

In a possible implementation manner, the first SL DRX configuration information does not match with power saving requirement information of the first communication device, including: the first energy-saving gain corresponding to the first SL DRX configuration information is smaller than or equal to the second energy-saving gain corresponding to the energy-saving requirement information; or, the ratio of the first energy saving gain corresponding to the first SL DRX configuration information to the second energy saving gain corresponding to the energy saving requirement information is smaller than or equal to a third threshold value; or, the first energy saving gain corresponding to the first SL DRX configuration information is smaller than or equal to a fourth threshold value.

In a possible implementation manner, the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the processing unit determines to reject the first SL DRX configuration information according to the fact that the activation time corresponding to the first SL DRX configuration information is larger than or equal to a fifth threshold value or the energy saving gain corresponding to the first SL DRX configuration information is smaller than a sixth threshold value and the electric quantity information is smaller than a seventh threshold value.

In a possible implementation manner, the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device, and includes: and the processing unit determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the SL DRX configuration information suggested or expected by the first communication device.

In a possible implementation, the first SL DRX configuration information does not match SL DRX configuration information proposed or expected by the first communication device, including: and the overlapping degree of the first activation time of the first SL DRX configuration information and the third activation time corresponding to the SL DRX configuration information suggested or expected by the first communication equipment is smaller than or equal to a first threshold value.

In a possible implementation manner, the apparatus further includes a sending unit, where the sending unit is configured to send second information, where the second information is used to indicate that the first SL DRX configuration is rejected, or where the second information is used to indicate that the first SL DRX configuration fails.

An eighth aspect provides an apparatus for wireless communication, including a transmitting unit configured to transmit first information including first side uplink discontinuous reception SL DRX configuration information, and a receiving unit; the receiving unit is configured to receive second information, where the second information is used to instruct the first communication device to reject the first SL DRX configuration, or the second information is used to instruct the first SL DRX configuration to fail.

A ninth aspect provides an apparatus for wireless communication, including a processing unit, where the processing unit is configured to determine that a first HARQ process of the second communication device is not configured or configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process; the processing unit is further configured to determine, according to a running condition of a timer of a discontinuous reception DRX mechanism corresponding to the first HARQ process, that the network device does not send or does not schedule resource configuration information of a first destination or a first SL connection, where the first destination or the first SL connection is a destination or an SL connection corresponding to the first HARQ process.

In a possible implementation manner, the determining, by the processing unit, resource configuration information of a first destination or a first SL connection that is not sent or not scheduled by the network device according to a running condition of a timer of a DRX mechanism corresponding to the first HARQ process includes: determining that the network device does not send or schedule resource configuration information for the first destination or the first SL connection when at least one of: only a retransmission timer retransmission timer corresponding to the first HARQ process is running on DRX of a first interface of the second communication device; the retransmission timer retransmission timer corresponding to the first HARQ process is running on the DRX of the first interface, and the retransmission timer retransmission timer corresponding to the first destination or the first SL connection for other HARQ processes except the first HARQ process is not running or not running; the duration timer on duration timer and the inactivity timer corresponding to the first destination or the first SL connection on the DRX of the second interface of the second communication device are neither running nor running.

In a possible implementation manner, the processing unit determines that a first HARQ process of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process, and includes: the processing unit determining that the first channel is not configured or not configured for carrying feedback information of a HARQ process corresponding to a first destination or a first SL connection of the second communication device; or, the processing unit determines that a feedback resource of the HARQ process corresponding to the first destination or the first side link SL connection of the second communication device is not or is not configured on an air interface in communication with the network device; or, the processing unit determines that there is no or no resource configured to send HARQ feedback corresponding to a first destination or a first side uplink SL connection of the second communication device to the network device; or, the processing unit determines that no or no SL HARQ feedback resources of a first HARQ process corresponding to a first destination or a first side-link SL connection of the second communication device are configured on an air interface in communication with the network device; or, the processing unit determines resources that are not or not configured for sending SL HARQ feedback of a first HARQ process corresponding to a first destination or a first side uplink SL connection of the second communication device to the network device; or the processing unit determines that the first channel resource does not exist in a first hybrid automatic repeat request (HARQ) process corresponding to a first destination or a first side link SL connection of the second communication device, where the first channel is used to carry feedback information of the first HARQ process, where the third information is received from the network device.

In a possible implementation manner, the processing unit determines that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection, including: the processing unit determines that the network device does not send or schedule new transmissions or retransmissions of other HARQ processes than the first HARQ process corresponding to the first destination or the first SL connection; and/or the processing unit determines that the network device does not send or schedule a new transmission of the first HARQ process corresponding to the first destination or the first SL connection.

In a possible implementation, the first SL connection of the second communication device may also be the first purpose of the second communication device.

In a tenth aspect, an apparatus for wireless communication is provided, including a processing unit, where the processing unit is configured to determine that a first HARQ process of a second communication device has not or is not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process; the processing unit is further configured to determine, according to an operation condition of a timer of a DRX mechanism corresponding to the first HARQ process, not to send or not to schedule resource configuration information of a first destination or a first SL connection, where the first destination or the first SL connection is a destination or an SL connection corresponding to the first HARQ process.

In a possible implementation manner, the determining, by the processing unit, the resource configuration information of the first destination or the first SL connection according to the running condition of the timer of the DRX corresponding to the first HARQ process includes: determining not to send or not to schedule the resource configuration information of the first destination or the first SL connection when at least one of: only a retransmission timer retransmission timer corresponding to the first HARQ process is running on DRX of a first interface of the second communication device; the retransmission timer retransmission timer corresponding to the first HARQ process is running on the DRX of the first interface, and the retransmission timer retransmission timer corresponding to the first destination or the first SL connection for other HARQ processes except the first HARQ process is not running or not running; the duration timer on duration timer and the inactivity timer corresponding to the first destination or the first SL connection on the DRX of the second interface of the second communication device are neither running nor running.

In a possible implementation manner, the processing unit determines that the first HARQ process of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process, and includes: the processing unit determining that the first channel for carrying feedback information of a HARQ process corresponding to a first destination or a first SL connection of the second communication device is not or is not configured; or, the processing unit determines that there is no feedback resource of the HARQ process corresponding to the first destination or the first side link SL connection of the second communication device on an air interface in communication with the second communication device or the network device is not configured with the second communication device; or, the processing unit determines that no or no resources for receiving HARQ feedback corresponding to a first destination or a first side uplink SL connection of the second communication device transmitted by the second communication device are configured; or, the processing unit determines that no SL HARQ feedback resource of a first HARQ process corresponding to a first destination or a first side uplink SL connection of the second communication device is configured on an air interface of the second communication device communication or the network device is not configured; or, the processing unit determines that no or the network device is not configured to receive the feedback of the first HARQ process corresponding to the first destination or the first side link SL connection of the second communication device sent by the second communication device; or the processing unit determines that the first channel resource does not exist in a first hybrid automatic repeat request (HARQ) process corresponding to a first destination or a first side link SL connection of the second communication device, where the first channel is used to carry feedback information of the first HARQ process, where the third information is sent to the second communication device.

In a possible implementation manner, the determining, by the processing unit, that the resource configuration information of the first destination or the first SL connection is not transmitted or not scheduled includes: the processing unit determines that new transmissions or retransmissions of other HARQ processes than the first HARQ process corresponding to the first destination or the first SL connection are not sent or not scheduled; and/or the processing unit determines not to send or not to schedule a new transmission of the first HARQ process corresponding to the first destination or the first SL connection.

An eleventh aspect provides an apparatus for wireless communication, including a processing unit and a sending unit, where the processing unit is configured to determine that a first HARQ process corresponding to a first destination or a first side link SL connection of the second communication device is not configured or configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process; the sending unit is configured to send indication information, where the indication information is used to indicate that the first HARQ process of the second communication device is not configured or not configured with the first channel or the first resource.

In a possible implementation manner, the processing unit determines that a first HARQ process corresponding to a first destination or a first side link SL connection of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process, and includes: the processing unit determining that the first channel is not configured or not configured for carrying feedback information of a HARQ process corresponding to a first destination or a first SL connection of the second communication device; or, the processing unit determines that the feedback resource of the HARQ process corresponding to the first destination or the first side link SL connection of the second communication device is not or is not configured on the air interface in communication with the network device; or, the processing unit determines that there is no or no resource configured to send HARQ feedback corresponding to a first destination or a first side-link SL connection of the second communication device to a network device; or, the processing unit determines that no or no SL HARQ feedback resources of a first HARQ process corresponding to a first destination or a first side-link SL connection of the second communication device are configured on an air interface in communication with the network device; or, the processing unit determines resources that are not or not configured for sending SL HARQ feedback of a first HARQ process corresponding to a first destination or a first side-link SL connection of the second communication device to a network device; or the processing unit determines that the first channel resource does not exist in a first hybrid automatic repeat request (HARQ) process corresponding to a first destination or a first Side Link (SL) connection of the second communication device, wherein the first channel is used for bearing feedback information of the first HARQ process, which is indicated by third information received from the network device.

A twelfth aspect provides an apparatus for wireless communication, including a receiving unit and a processing unit, where the receiving unit is configured to receive indication information, where the indication information is configured to indicate that a first HARQ process corresponding to a first destination or a first side-link SL connection of a second communication device is not configured or configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process; the processing unit is configured to start a retransmission timer retransmission timer corresponding to the first HARQ process.

In a possible implementation manner, the processing unit starts a retransmission timer retransmission timer corresponding to the first HARQ process, and further includes: the processing unit starts the retransmission timer retransmission timer after or when the HARQ RTT timer corresponding to the first HARQ process is overtime; or, the processing unit starts the retransmission timer retransmission timer in a first symbol or a first slot after the physical side uplink feedback channel PSFCH transmission or PSFCH resource ends.

In a possible implementation manner, a first channel is not configured or not configured for a first HARQ process corresponding to a first destination or a first side link SL connection of a second communication device, where the first channel is used to carry feedback information of the first HARQ process, and includes: the second communication device has no or is not configured to carry the first channel of feedback information of the HARQ process corresponding to the first destination or the first SL connection of the second communication device; or, the second communication device has no or is not configured with feedback resources of the HARQ process corresponding to the first destination or the first side link SL connection of the second communication device on an air interface in communication with the network device; or, the second communication device has no or no resources configured for transmitting HARQ feedback corresponding to the first destination or the first side uplink SL connection of the second communication device to the network device; or, in the second communication device, on an air interface in communication with the network device, not having or not being configured with SL HARQ feedback resources of a first HARQ process corresponding to a first destination or a first side link SL connection of the second communication device; or, the second communication device has no or no resource configured for transmitting SL HARQ feedback of a corresponding first HARQ process of a first destination or a first side uplink SL connection of the second communication device to a network device; or, the third information received from the network device in the second communication device indicates that the first channel resource does not exist in the first hybrid automatic repeat request HARQ process corresponding to the first destination or the first side link SL connection of the second communication device, and the first channel is used for carrying feedback information of the first HARQ process.

In a thirteenth aspect, a method of wireless communication is provided, which may be performed by a second communication device or by a component (e.g., chip, processor, etc.) in the second communication device, including: the second communication device determines that a first physical side uplink feedback channel PSFCH is not received or not received, wherein the first PSFCH is used for receiving feedback information sent by the first communication device; the second communication device determines that data of a second SL process is not scheduled, where the second SL process is a first destination corresponding to the first PSFCH or a SL process of the first SL connection, or the second communication device determines that a retransmission timer corresponding to the first PSFCH is not started.

In a possible implementation manner, the determining, by the second communication device, data that does not schedule the second SL process includes: and the second communication equipment determines not to schedule the data of the second SL process according to the running condition of the timer at the first communication equipment side.

In a possible implementation manner, the determining, by the second communication device, data of the second SL process not to be scheduled according to a running condition of a timer at the first communication device side includes: and the second communication device determines not to schedule the data of the second SL process according to the fact that a retransmission timer corresponding to the second SL process at the first communication device side is not operated/not operated, and a continuous timer and an inactive timer are not operated/not operated, wherein the continuous timer comprises a continuous timer of a first destination or SL DRX corresponding to a first SL connection, and the inactive timer comprises an inactive timer of a first destination or SL DRX corresponding to the first SL connection.

In a possible implementation manner, the data of the second SL process includes: a new transmission of the first SL process; and/or new transmissions or retransmissions of other SL processes than the first SL process; the first SL process is an SL process corresponding to the first PSFCH.

In a possible implementation, the other SL processes do not include SL HARQ feedback disabled SL processes.

In a possible implementation manner, the determining, by the second communication device, not to start the retransmission timer corresponding to the first PSFCH includes: the second communication device determines that a retransmission timer corresponding to an SL process corresponding to the first PSFCH maintained locally is not started, or the second communication device does not start a retransmission timer corresponding to an SL process corresponding to the first PSFCH maintained locally.

In a possible implementation manner, the retransmission timer corresponding to the SL process corresponding to the first PSFCH maintained locally includes: and the second communication equipment locally maintains a retransmission timer corresponding to the first PSFCH in the SL DRX timer corresponding to the first communication equipment side SL DRX timer.

In a fourteenth aspect, a communication apparatus is provided, which may be a communication device in the above-described method embodiment, or a chip provided in the communication device. The communication device includes a processor and interface circuitry, and optionally, a memory. The memory is used for storing a computer program or instructions, and the processor is coupled with the memory and the interface circuit, and when the processor executes the computer program or instructions, the communication device executes the method executed by the communication device in the embodiment of the method.

In a fifteenth aspect, an apparatus is provided that includes a processor and a transceiver. The processor is connected with the transceiver. The processor is configured to execute the instructions and the transceiver is configured to communicate with other network elements under control of the processor. The processor, when executing instructions, causes the apparatus to perform the method of any one of the above aspects or any of the possible implementations of any one of the above aspects. The apparatus also includes a memory for storing instructions.

In a sixteenth aspect, there is provided a computer readable medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the above aspects or any of the possible implementations of any one of the above aspects.

In a seventeenth aspect, there is provided a communication chip having instructions stored therein which, when run on a computer device, cause the communication chip to perform the method of any one of the above aspects or any of the possible implementations thereof.

In an eighteenth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of any one of the above aspects or any of the possible implementations of any one of the above aspects.

In a nineteenth aspect, there is provided a chip system comprising: the system comprises an input interface, an output interface, at least one processor and a memory, wherein the input interface, the output interface, the processor and the memory are connected through an internal connection path, the processor is used for executing codes in the memory, and when the codes are executed, the processor is used for executing the method in each aspect.

In a twentieth aspect, a wireless communication system is provided that includes a first communication device and a second communication device, optionally, the system may further include a network device. The system is configured to perform the method of the above aspects.

Based on the technical scheme, the criterion that the communication equipment determines to accept or reject SL DRX configuration can be perfected, or the waste of communication resources or RX packet loss caused by the fact that the base station does not determine the active time of RX can be avoided.

Drawings

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

fig. 2 is a schematic flow chart of a method of wireless communication provided by an embodiment of the present application;

FIG. 3 is a schematic flow chart of another method of wireless communication provided by an embodiment of the present application;

FIG. 4 is a schematic flow chart of another method of wireless communication provided by an embodiment of the present application;

FIG. 5 is a schematic flow chart diagram of another method of wireless communication provided by an embodiment of the present application;

fig. 6 is a schematic flow chart diagram of another method of wireless communication provided by an embodiment of the present application;

FIG. 7 is a schematic flow chart diagram of another method of wireless communication provided by an embodiment of the present application;

fig. 8 is a schematic block diagram of a device for wireless communication according to an embodiment of the present application;

fig. 9 is a schematic block diagram of another apparatus for wireless communication provided in an embodiment of the present application.

Detailed Description

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

The technical solution of the embodiment of the application can be applied to various communication systems, for example: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) telecommunications system, fifth generation (5) ^th generation, 5G) systems or new wireless (NR) systems, vehicle-to-X V X (where V2X may include Vehicle-to-internet (Vehicle to network, V2N), vehicle-to-Vehicle (V2V), vehicle-to-infrastructure (Vehicle to infrastructure, V2I), vehicle-to-pedestrian (Vehicle to pedestrian, V2P), etc.), long term evolution of workshop (Long Term Evolution-Vehicle, LTE-V), internet of vehicles, machine-like communications (Machine type communication, MTC), internet of things (Internet of Things, ioT), long term evolution of Machine (Long Term Evolution-Machine, LTE-M), machine-to-Machine (Machine to Machine, M2M), device-to-Device (D2D), non-terrestrial communication (non-terrestrial network, NTN) systems, or other communication systems that evolve in the future, etc.

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application.

A communication system suitable for use in embodiments of the present application may include at least two terminal devices, such as

terminal devices

102, 103, 104, 105 in communication system 100 shown in fig. 1. A communication system suitable for use in embodiments of the present application may also include at least one network device, such as network device 101 in wireless communication system 100 shown in fig. 1. A Side Link (SL) communication may be performed between at least two terminal devices, including SL unicast, SL multicast, and SL broadcast. For SL unicast, an SL connection needs to be established between the communicating terminal devices, such as the side-

link connections

120, 121, 122, 123, and 124 in fig. 1, and the terminal devices that establish the side-link connection can directly perform SL unicast communication. Wherein a terminal device may establish a side-link connection with one or more terminal devices, e.g., terminal device 102 may establish a side-link 120 connection with terminal device 103 (which may be referred to as a first SL connection), may establish a side-link 121 connection with terminal device 104 (which may be referred to as a second SL connection), may establish a side-link 122 connection with terminal device 105 (which may be referred to as a third SL connection), and so on. The terminal device may perform a side-link SL discontinuous reception (discontinuous reception, DRX) operation while the terminal device communicates through the side-link. SL multicast and SL broadcast communications do not require the establishment of a SL connection, but SL DRX may also be configured. The terminal device may receive data transmitted by other terminal devices within the DRX activation time. In the communication system, the terminal device may also establish a wireless connection with the network device to perform data communication, and the

terminal devices

102 and 103 shown in fig. 1 respectively establish

wireless links

110 and 111 with the network device. The terminal devices in the communication system may not establish a wireless link with the network device, such as the

terminal devices

104 and 105 shown in fig. 1, which is not limited in this application. It is understood that the terminal device is understood to be in a wake-up state (wakeup) during the DRX activation time.

The terminal device in the embodiments of the present application may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiments of the present application may be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in an industrial control (industrial control), a wireless terminal in an unmanned aerial vehicle (self driving), a wireless terminal in a remote medical (remote medium), a wireless terminal in a smart grid (smart grid), a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city (smart city), a wireless terminal in a smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a communication apparatus, a mobile unit (road side), a mobile terminal in a smart city (smart city), an evolution network (PLMN), a mobile terminal in a smart home (smart home), a mobile terminal in a future, a mobile communication network (RSU, a mobile communication chip (RSU), or the like.

The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wearing and developing wearable devices by applying a wearable technology, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

Furthermore, the terminal device may also be a terminal device in an internet of things (internet of things, ioT) system. IoT is an important component of future information technology development, and its main technical feature is to connect an item with a network through a communication technology, so as to implement man-machine interconnection and an intelligent network for object interconnection.

It should be understood that the present application is not limited to a specific form of terminal device.

The technical scheme in the embodiment of the application can also be applied to network equipment. The network devices include, but are not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Road Side Unit (RSU), a Node B (NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (home evolved nodeB, or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (transmission point, TP), or a transmission receiving point (transmission and reception point, TRP), etc., may also be an antenna panel of a gNB or a transmission point (TRP or TP) in a 5G (such as NR) system, or may also be a network Node constituting the gNB or the transmission point, such as a BBU, or a distributed unit (distributed) in a 5G system, or may also be a network Node constituting the gNB or the transmission point, or may also be a network Node providing a communication control device in the network side of the network, such as a DU, a communication device, or a network side of the vehicle.

The network device provides communication services for terminal devices in a cell, which communicate with the network device through transmission resources (e.g., frequency domain resources, time domain resources, etc.) allocated by the network device, and which may belong to a macro base station (e.g., macro eNB or macro gNB, etc.).

To facilitate an understanding of the embodiments of the present application, the terms referred to in this application are first briefly described.

1. Broadcast and multicast communication mode in side-link

Broadcast or multicast refers to broadcast or multicast data transmitted by one transmitting device that can be received by one or more terminal devices. For example, the destination layer 2 identity (Destination Layer-2 ID) used when traffic data is transmitted over the PC5 interface is predefined. When the transmitting device transmits the broadcast service data, a Destination ID (Destination ID) corresponding to the broadcast service may be filled in a Media Access Control (MAC) layer and/or a Physical (PHY) layer. The terminal device interested in the broadcast service may monitor whether the PHY layer has information identifying the destination layer 1 identifier (Destination Layer-1 ID) corresponding to the broadcast service, or determine whether the MAC layer receives information identifying the destination layer 2 identifier (Destination Layer-2 ID) corresponding to the broadcast service, and receive and parse the information, but the application is not limited thereto.

2. Unicast communication scheme in side-link

Unicast is a one-to-one communication mode of terminal devices, a transmitting device indicates a receiving device of unicast data transmitted by the transmitting device through a destination identifier, the receiving device determines whether the unicast data is the unicast data transmitted to itself according to the destination identifier or the destination identifier and a source identifier of the unicast data, and determines which device the unicast data is transmitted by according to a source address of the unicast data. Optionally, the two terminal devices may establish unicast connection between the two devices through signaling interaction, and unicast communication may be performed after the unicast connection is established.

3. Side uplink transmission mode1 (mode 1)

The side uplink mode1 refers to that the terminal device determines resources for transmitting side uplink data according to a side uplink scheduling grant (sidelink) transmitted by the network device. The side-uplink scheduling grants resources for granting the terminal device dedicated transmitting side-uplink data. For example, before the terminal device sends the uplink, the buffer status report bufferstatus reports, BSR) is reported to the network device to notify the network device of the amount of data to be sent, and the network device grants the network device corresponding resources according to the amount of data reported by the terminal device.

4. Side-uplink transmission mode2 (mode 2)

The side-link mode2 refers to that the network device allocates a resource pool for the side-link in advance, for example, the terminal device may acquire the resource pool for the side-link through pre-configuration, system message broadcasting, dedicated signaling, or the like, and a plurality of terminal devices may contend for resources in the resource pool for the side-link, and in case of contending for the resources, the terminal device may transmit data of the side-link on the contended resources. For example, the terminal device selects unoccupied resources for transmission according to whether or not the time-frequency resources in the resource pool for the side link are occupied, but the present application is not limited thereto.

5. Continuous timer (duration timer)

For SL DRX, the duration timer refers to a period of time (duration) at which one SL DRX cycle starts. During the timer running, the receiving UE is at active time or needs to monitor SCI. Each SL connection or destination (destination) corresponding SL DRX configuration may correspond to a persistence timer;

6. inactivity timer (inactivity timer)

For SL DRX, the inactivity timer refers to the period of time after receiving the SCI indicating the new transmission. During the timer running, the receiving UE is at active time or needs to monitor SCI. Each SL connection or destination (destination) corresponding SL DRX configuration may correspond to an inactivity timer

7. Retransmission timer (retransmission timer)

For SL DRX, the retransmission timer refers to the maximum time until a SL retransmission is received. Each SL process corresponds to a retransmission timer.

8. Hybrid automatic repeat request round trip time timer (HARQ RTT timer)

For SL DRX, the hybrid automatic repeat request round trip time timer refers to the maximum time before the MAC entity expects to receive a SL HARQ retransmission. Each SL process corresponds to a hybrid automatic repeat request round trip time timer.

In a communication system in which a network device interacts with a terminal device, the network device may send a physical downlink control channel (physical downlink control channel, PDCCH) to the terminal device. The PDCCH is mainly used for transmitting downlink control information (downlink control information, DCI), or for carrying DCI, including scheduling information for downlink and uplink data transmission, uplink power control information, slot format information, etc.

Similarly, in side-link communications, i.e. in a communication system in which a terminal device interacts with a terminal device, a transmitting end (TX) may also transmit SL information, which may include side-link control information (sidelink control information, SCI), to a receiving end (receiver, RX), which may be used to decode SL data in the received SL information, so that the receiving end will receive the SCI. However, since the receiving end does not know the time for the transmitting end to transmit the SL information, the receiving end needs to monitor the SCI, and if the receiving end is always in the monitoring state, the power consumption of the receiving end will be significantly increased. Therefore, the SLDRX operation may be performed in the terminal device, so that the receiving end only needs to monitor the SCI for a part of the time, thereby reducing power consumption of the receiving end terminal device.

In SL communication, the terminal device may perform an SLDRX operation, and the SL DRX configuration corresponding to the SL DRX operation may be configured by the network device, for example, the network device transmits information including the SL DRX configuration to the terminal device. The terminal device may determine to accept or reject the SL DRX configuration, however, the determination of how the terminal device determines to accept or reject the SL DRX configuration is not further defined, i.e. the configuration of the SL DRX configuration is not perfect enough.

Further, in a SL communication system in which a terminal device is scheduled for a network device to realize the terminal device, the terminal device may perform a DRX operation, such as Uu DRX, on an air interface communicating with the network device, and the terminal device may also perform a DRX operation, such as SL DRX, on an air interface communicating with other terminal devices. Misalignment or inconsistency of Uu DRX with SL DRX may however lead to a waste of communication resources. For example, when the terminal device serving as the transmitting end does not have a hybrid automatic repeat request (hybrid automatic repeat request, HARQ) feedback resource configured by the network device for the SL connection on an air interface in communication with the network device, that is, when the network device does not configure a HARQ feedback resource for the terminal device serving as the transmitting end for the SL connection, the network device cannot determine whether the receiving end corresponding to the transmitting end successfully decodes the data, and the network device may continue to schedule a resource (for example, a resource for transmitting information from the transmitting end to the receiving end) to the transmitting end, however, the receiving end may be in a sleep state, so that after the transmitting end receives the resource scheduled by the network device, the scheduled resource may be discarded, which results in a waste of the resource; or after the sending end receives the resource scheduled by the network device, the sending end is used for sending data of other processes (processes), and packet loss is caused because the receiving end is in a sleep state.

Therefore, the embodiment of the application provides a wireless communication method, which can perfect the criterion that the communication equipment determines to accept or reject the SL DRX configuration on one hand, and can avoid the waste of communication resources or the RX packet loss caused by the fact that the network equipment does not determine the active time of RX on the other hand.

It should be understood that the communication device may be a terminal device, a terminal device that evolves in the future, or a network device, which is not limited in this application.

It should be understood that the description of specific scenes in the embodiments of the present application is only an example, and the method provided in the embodiments of the present application may be applied to application scenes having similar problems, except for application scenes described above.

It should also be understood that, in the methods of wireless communication provided in the embodiments of the present application, some methods may be applied to some flows in the DRX related mechanism of the communication device, and some methods may be applied to any one or more flows in the DRX related mechanism of the communication device. It should also be understood that the methods of wireless communication provided in the embodiments of the present application may be used in combination with each other, for example, one method may be used by a certain flow in the DRX related mechanism of the communication device, another method may be used by another flow, or one method may be used by a certain flow in the DRX related mechanism of the communication device, and another method may be used by both methods.

It should also be appreciated that the DRX-related mechanisms applied to communication devices may change as technology evolves, and that the methods provided herein are applicable to future evolved DRX-related mechanisms.

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

Fig. 2 illustrates a method 200 of wireless communication provided in an embodiment of the present application.

S201, the first communication device receives first information, where the first information includes first side uplink discontinuous reception SL DRX configuration information, and the second communication device sends the first information accordingly.

Specifically, in the embodiment of the present application, the first communication device may be a receiving end RX, and the second communication device may be a transmitting end TX, that is, the transmitting end TX configures SL DRX for the receiving end RX through the first information. The first SL DRX configuration information may be SL DRX configuration information for a first SL connection of the first communication device. It should be appreciated that the first SL connection may be a SL connection between the first communication device and the second communication device.

S202, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device.

Specifically, in the embodiment of the present application, the state information of the first communication device may include configuration information of the first communication device itself and/or requirement information of the first communication device itself, which is used for the first communication device to determine to accept or reject the first SL DRX configuration information.

Therefore, after receiving the SL DRX configuration information, the communication device may determine to accept or reject the SL DRX configuration information according to its own situation or its own state, i.e. state information, thereby perfecting a mechanism of the communication device for determining to accept or reject the SL DRX configuration.

Optionally, the status information of the first communication device may specifically include at least one of: SL DRX configuration information for the second SL connection of the first communication device, SL DRX configuration information suggested or desired by the first communication device, transmission resource configuration information for the first communication device, power saving requirement information for the first communication device, power information for the first communication device.

It should be appreciated that the second SL connection of the first communication device may be one or more SL connections other than the first SL connection, or may be some or all of the SL connections other than the first SL connection. For example, when the first communication device is a transmitting end, the SL DRX configuration information of the second SL connection includes the SL DRX configuration information of the first communication device as the transmitting end. For another example, when the first communication device is a receiving end, the SL DRX configuration information of the second SL connection includes other SL DRX configuration information than the first SL DRX configuration information.

It should also be appreciated that the transmission resource configuration information of the first communication device may include transmission resource pool configuration information of the first communication device.

In a possible implementation manner, the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device, and may include: the first communication device determines to reject the first SL DRX configuration information based on the first SL DRX configuration information not matching the SL DRX configuration information of the second SL connection of the first communication device.

In an embodiment of the present application, the first SL DRX configuration information does not match SL DRX configuration information of the second SL connection of the first communication device, and may include: the overlapping information of the activation time corresponding to the first SL DRX configuration information and the activation time corresponding to the SL DRX configuration information of the second SL connection satisfies a certain condition, for example, the overlapping degree of the first activation time corresponding to the first SL DRX configuration information and the second activation time corresponding to the SL DRX configuration information of the second SL connection is less than or equal to a first threshold value, which is not limited in this application. It should be appreciated that the first activation time and the second activation time may be times during which the first communication device may be in an awake state (wake up) for a certain period of time. It is further understood that the degree of overlap of the first activation time and the second activation time may be understood as the duration of the overlap of the first activation time and the second activation time, or may be understood as the ratio of the first activation time to the second activation time, or may be understood as the ratio of the duration of the overlap of the first activation time and the second activation time to the third time, wherein the third time is the union of the first activation time and the second activation time. The above understanding of the "overlapping degree of the first activation time and the second activation time" is also applicable to the understanding of any "overlapping degree of two activation times (e.g., kth activation time and jth activation time)" elsewhere in the present application.

In another possible implementation manner, the determining, by the first communication device, to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device may include: the first communication device determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the transmission resource configuration information of the first communication device.

In the embodiment of the present application, the first SL DRX configuration information does not match with the transmission resource configuration information of the first communication device, and may include: the time at which the activation time indicated by the first SL DRX configuration information overlaps with the time region indicated by the transmission resource configuration information of the first communication device within the first time is less than or equal to the second threshold. In another possible implementation manner, the determining, by the first communication device, to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device may include: the first communication device determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information does not match the power saving requirement of the first communication device.

In the embodiment of the present application, the first SL DRX configuration information does not match the energy saving requirement information of the first communication device, and may include: the ratio of the first SL DRX configuration information to the second energy-saving gain corresponding to the energy-saving requirement information is smaller than or equal to a third threshold value, or the ratio of the first energy-saving gain corresponding to the first SL DRX configuration information to the second energy-saving gain corresponding to the energy-saving requirement information is smaller than or equal to a fourth threshold value.

It should be understood that, in this embodiment of the present application, taking the first communication device as the receiving end RX and the second communication device as the transmitting end TX as an example, when the current energy saving requirement of RX is strong, but a duration timer (duration timer) corresponding to the first SL DRX configuration information configured by TX to RX is long, or a DRX cycle (DRX cycle) is short, the first communication device may determine that the first SL DRX configuration information does not match the energy saving requirement information of the first communication device. For example, the power saving gain a corresponding to the first SL DRX configuration information received by the RX from the TX may be compared to the power saving gain B currently required by the RX, and when the power saving gain a is less than the power saving gain B or the power saving gain a does not reach a certain percentage value of the power saving gain B, the first communication device may determine to reject the first SL DRX configuration information.

Alternatively, the calculation of the power saving gain a may satisfy the formula 1-duration/DRX cycle, and the power saving gain B may be determined by the first communication device. Where onduration denotes the running duration of a duration timer (onduration timer) in one DRX cycle, and DRX cycle denotes the period of DRX.

Alternatively, the "energy saving gain" in the present application may be replaced with "sleep time duty cycle", or "maximum sleep time duty cycle".

In another possible implementation manner, the determining, by the first communication device, to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device may include: and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the activation time corresponding to the first SL DRX configuration information is larger than or equal to a fifth threshold value or the energy saving gain corresponding to the first SL DRX configuration information is smaller than a sixth threshold value and the electric quantity information of the first communication equipment is smaller than a seventh threshold value.

In another possible implementation manner, the determining, by the first communication device, to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device may include: the first communication device determines to reject the first SL DRX configuration information based on the first SL DRX configuration information and the mismatch of the proposed or expected SL DRX configuration information of the first communication device.

In an embodiment of the present application, the first SL DRX configuration information and the first communication device suggested or expected SL DRX configuration information do not match, including: the overlapping information of the activation time corresponding to the first SL DRX configuration information and the activation time corresponding to the first communication apparatus suggested or desired SL DRX configuration information satisfies a certain condition, for example, the overlapping degree of the first activation time corresponding to the first SL DRX configuration information and the third activation time corresponding to the first communication apparatus suggested or desired SL DRX configuration information is less than or equal to an eighth threshold, which is not limited in this application.

Optionally, the method 200 may further include step S203:

s203, the first communication device sends second information, where the second information is used to indicate that the first SL DRX configuration is rejected, or the second information is used to indicate that the first SL DRX configuration fails, and correspondingly, the second communication device receives the second information.

Therefore, when the communication equipment determines that the SL DRX configuration is refused, information is sent to the opposite side communication equipment to indicate the configuration condition of the SL DRX mechanism of the opposite side communication equipment, the opposite side communication equipment can make a decision on the subsequent SL DRX configuration after learning, determine whether to schedule according to the SL DRX configuration and the like, and therefore the configuration mechanism of the SL DRX is perfected.

Further, while TX configures the SL DRX mechanism for RX, other mechanisms may be configured, and thus the manner in which TX configures the SL DRX mechanism for RX and other mechanisms may also need to be optimized. For example, the method 300 of wireless communication provided in the embodiments of the present application is described below.

Fig. 3 illustrates another method 300 of wireless communication provided by an embodiment of the present application.

It should be noted that, part of the steps in the method 300 are the same as those in the method 200, and detailed descriptions of the same steps can be referred to the related descriptions in the method 200, which are not repeated here. For example, S306 may refer to the related description of S202.

S301, the first communication device receives third information, where the third information includes second SL DRX configuration information and third configuration information, and the second communication device sends the third information, correspondingly.

Specifically, in the embodiment of the present application, the first communication device may be a receiving end RX, and the second communication device may be a transmitting end TX.

Optionally, the third configuration information is other configuration information except the second SL DRX configuration information in the third information. For example, the third configuration information includes one or more of a variety of configuration information including SL RRB configuration information, SDAP configuration information, RLC configuration information, and the like.

S302, the first communication device determines that the second SL DRX configuration information can be or cannot be adhered to or rejected, and/or the first communication device determines that the third configuration information can be or cannot be adhered to.

S303, the first communication device determines to use or not use the second SL DRX configuration information, and determines to use or not use the third configuration information.

For the specific implementation of the steps S302 and S303, at least one of the following may be:

mode one: when the first communication device determines that the second SL DRX configuration information cannot be followed or rejected and determines that the third configuration information can be followed, the first communication device determines that the second SL DRX configuration information is not used and determines that the third configuration information is used;

Mode two: when the first communication device determines that the second SL DRX configuration information can be either adhered to or not adhered to or rejected and determines that the third configuration information cannot be adhered to, the first communication device determines that the second SL DRX configuration information is not used and determines that the third configuration information is not used;

mode three: when the first communication device determines that the second SL DRX configuration information can be followed and that the third configuration information cannot be followed, the first communication device determines to use the second SL DRX configuration information and determines not to use the third configuration information;

mode four: : when the first communication device determines that the second SL DRX configuration information can be followed and determines that the third configuration information can be followed, the first communication device determines to use the second SL DRX configuration information and determines to use the third configuration information.

Optionally, the method 300 may further include step S304:

and S304, the first communication device sends fourth information according to the determination result, wherein the fourth information is used for indicating to use or not use the second SL DRX configuration information and indicating to use or not use the third configuration information, and correspondingly, the second communication device receives the fourth information.

Specifically, in the embodiment of the present application, the first communication device sends the fourth information according to the determination result, where the determination result may be a result that the first communication device determines whether to use the second SL DRX configuration information and determines whether to use the third configuration information, that is, the first communication device sends the fourth information according to the determined configuration information use result.

In a possible implementation, when the fourth information is used to indicate that the second SL DRX configuration information is not used, the fourth information may include at least one of: the reject cause of the configuration information, the configuration suggestion of the configuration information, the reference information of the configuration information, the auxiliary information of the configuration information, and the like.

Optionally, the fourth information includes a SL RRC reconfiguration failure message or a SL RRC reconfiguration complete message.

Optionally, the fourth information further includes identification information of the first communication device or identification information of SL connection corresponding to the second SL DRX configuration information.

It should be appreciated that the fourth information is used to indicate the use or non-use of the second SL DRX configuration information, and the manner in which the third configuration information is used or not used may be various:

in a possible implementation, whether to use the second SL DRX configuration information and whether to use the third configuration information may be indicated by a message type included in the fourth information, for example, when the fourth information includes a SL RRC reconfiguration failure message, the fourth information is used to indicate that the second SL DRX configuration information is not used and to indicate that the third configuration information is not used. For another example, when the fourth information includes a SL RRC reconfiguration complete message, the fourth information is used to indicate that the second SL DRX configuration information is used and to indicate that the third configuration information is used.

In another possible implementation manner, whether to use the second SL DRX configuration information and whether to use the third configuration information may be indicated by a message type included in the fourth information and indication information carried in the message, for example, when the fourth information includes a SL RRC reconfiguration failure message or a SL RRC reconfiguration complete message, and the SL RRC reconfiguration failure message or the SL RRC reconfiguration complete message carries indication information of "second SL DRX configuration failure or rejection", the fourth information is used to indicate that the second SL DRX configuration information is not used and indicate that the third configuration information is used; for another example, when the fourth information includes a SL RRC reconfiguration failure message or a SL RRC reconfiguration complete message, and the SL RRC reconfiguration failure message or the SL RRC reconfiguration complete message carries indication information of "the second SL DRX configuration is successful or accepted", the fourth information is used to indicate that the second SL DRX configuration information is used and indicate that the third configuration information is not used.

It should be understood that, in the embodiment of the present application, the indication manner of the indication information carried in the message included in the fourth information is not limited. That is, the indication information carried in the message may be various, for example, indication information of "failure or rejection of the second SL DRX configuration," indication information of "success or acceptance of the second SL DRX configuration" or the like, which is not limited in this application.

Alternatively, the indication information of "second SL DRX configuration failure or rejection" and the indication information of "second SL DRX configuration success or acceptance" may correspond to one bit, for example, the indication information of "second SL DRX configuration failure or rejection" corresponds to a bit value of 1, and the indication information of "second SL DRX configuration success or acceptance" corresponds to a bit value of 0, or vice versa.

Optionally, the method 300 may further include step S305:

s305, the second communication device sends fifth information, where the fifth information is used to indicate a configuration situation of the second SL DRX configuration information, and the network device receives the fifth information correspondingly.

Specifically, in the embodiment of the present application, the second communication device in the connected state sends the fifth information to the network device, so that the network device may determine the subsequent relevant configuration information according to the configuration condition of the second SL DRX configuration information.

Optionally, the fifth information includes identification information of the first communication device or identification information of the SL connection corresponding to the second SL DRX configuration information.

Optionally, the fifth information further includes at least one of: the reject cause of the configuration information, the configuration suggestion of the configuration information, the reference information of the configuration information, the auxiliary information of the configuration information, and the like.

It should be understood that, in the embodiment of the present application, when the second communication device is in the connected state, the configuration condition of the second SL DRX configuration information fed back by the first communication device may be reported to the network device (e.g. the fifth information is sent to the network device in step S305), so that the network device decides or determines how to configure the SL DRX mechanism subsequently; when the second communication device is in the idle state or inactive state, the configuration condition of the second SL DRX configuration information fed back by the first communication device may not be reported to the network device (e.g., step S305 is not included), so that the second communication device decides or determines how to configure the SL DRX mechanism.

Optionally, the method 300 may further include step S306:

s306, the first communication device determines that the second SL DRX configuration information cannot be followed or rejected according to the second SL DRX configuration information and the state information of the first communication device.

For the detailed description of step S306, reference may be made to the description related to step S202 in the method 200, where the replacing of part of the concept names in S202 may be performed, including: "first SL DRX configuration information" is replaced with "second SL DRX configuration information"; "reject" is replaced by "cannot follow or reject"; "SL DRX configuration information for the second SL connection" is replaced with "SL DRX configuration information for the third SL connection"; the "first activation time" is replaced with the "third activation time"; the "second activation time" is replaced with the "fourth activation time"; the "first threshold" is replaced with the "eighth threshold"; the "first time" is replaced with "second time"; the "second threshold value" is replaced with the "ninth threshold value"; the "first energy saving gain" is replaced with the "third energy saving gain"; the "second energy saving gain" is replaced with the "fourth energy saving gain"; the "third threshold" is replaced with the "tenth threshold"; the "fourth threshold value" is replaced with the "eleventh threshold value"; the "fifth threshold" is replaced with the "twelfth threshold"; the "sixth threshold" is replaced with the "thirteenth threshold"; the "seventh threshold" is replaced with the "fourteenth threshold"; the "second information" is replaced with "fifth information".

Fig. 4 illustrates another method 400 of wireless communication provided by an embodiment of the present application.

S401, the second communication device determines that the first HARQ process of the second communication device has not or is not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process.

Optionally, the network device determines that the first HARQ process of the second communication device does not exist or the network device does not configure a first channel or a first resource for carrying feedback information corresponding to the first HARQ process to the second communication device, where the feedback information may be ACK or NACK.

Optionally, the first HARQ process comprises at least one HARQ process.

Specifically, in the embodiment of the present application, the second communication device may be a transmitting end TX, and the network device may be a base station.

Optionally, the first channel includes a physical uplink control channel PUCCH or a physical uplink shared channel PUSCH.

It should be understood that, when the second communication device is the transmitting end TX, the TX may receive the resource configuration information scheduled by the network device and used for SL transmission by the TX, and after the TX receives the SL resource configuration information scheduled by the network device and sends the information with the SL resource configuration, the TX may send corresponding HARQ feedback information to the network device. However, the network device may not configure a channel or transmission resource for transmitting the feedback information corresponding to the resource configuration information, that is, the second communication device determines that the first channel or the first resource is not configured or the network device is not configured in step S301 described above.

In a possible implementation manner, the first HARQ process is used for the network device to send SL resource information or SL resource configuration information to the second communication device. The air interface where the second communication device communicates with the network device may be a Uu interface.

In another possible implementation manner, the feedback information corresponding to the first HARQ process carried by the first channel or the first resource is transmitted through an air interface where the second communication device communicates with the network device. Or, the feedback information corresponding to the first HARQ process carried by the first channel or the first resource is feedback information sent to the network device on an air interface where the second communication device communicates with the network device, where the feedback information includes HARQ feedback information, for example, may be ACK or NACK information.

Optionally, "determining that the first HARQ process of the second communication device does not have or is not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process" may include or be replaced by any one of the following expressions:

1. determining the first channel which is not configured or not to carry feedback information of a HARQ process corresponding to a first destination or a first SL connection of a second communication device;

2. Determining feedback resources of HARQ processes corresponding to a first destination or first side-link SL connection of a second communication device that is not or is not configured on an air interface with the network device (or an air interface with which the second communication device is in communication);

3. determining resources that are not or are not configured for transmitting HARQ feedback corresponding to a first destination or first side uplink SL connection of a second communication device (or receiving a transmission by a second communication device) to a network device;

4. determining SL HARQ feedback resources of a first HARQ process corresponding to a first destination or first side uplink SL connection of a second communication device that is not or is not configured on an air interface with the network device (or an air interface with which the second communication device is in communication);

5. determining resources that are not or are not configured for transmitting to the network device (or receiving SL HARQ feedback for a corresponding first HARQ process for a first destination or first side uplink SL connection of a second communication device transmitted by a second communication device);

6. determining that third information received from the network device (or sent to the second communication device) indicates that the first hybrid automatic repeat request HARQ process of the second communication device has no first channel resources, and the first channel is used for carrying feedback information of the first HARQ process. In the embodiment of the present application, the third information may be carried by DCI (e.g., DG, CG type 2) or an RRC message (e.g., CG type 1), where the DCI or RRC message may include SL scheduling information (e.g., SL grant); optionally, the first HARQ process is a corresponding HARQ process of the first side uplink SL connection of the second communication device.

It should be understood that the feedback resources of the HARQ process described above include PUCCH resources or PUSCH resources.

It should also be appreciated that the first destination or first SL connection may be the destination or SL connection corresponding to the first HARQ process described above. The first destination may be a destination for SL communication with the second communication device, and the destination may correspond to a destination terminal device or to a destination address identification.

S402, the second communication device determines that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection according to the running condition of the timer of the DRX mechanism corresponding to the first HARQ process, and the first destination or the first SL connection is the destination or the SL connection corresponding to the first HARQ process.

Specifically, in the embodiment of the present application, the second communication device determines that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection, and may instead determine that the second communication device does not expect the network device to send or schedule the resource configuration information of the first destination or the first SL connection.

It should be appreciated that the resource configuration information of the first destination may comprise resource configuration information of the first destination communication device or may comprise resource configuration information corresponding to the first destination address identification.

Therefore, when the communication equipment determines that the communication equipment is on an air interface for communication with the network equipment, the network equipment is specified to not send or schedule related resource allocation any more when the feedback resource allocation is not available, so that the condition that the network equipment continues to schedule resources and the communication equipment wastes the resources is avoided, and the utilization rate of the resources is improved.

In an embodiment of the present application, the network device does not send or schedule the resource configuration information of the first destination or the first SL connection, including: the network device does not send or schedule new transmissions or retransmissions of other HARQ processes than the first HARQ process corresponding to the first destination or the first SL connection; and/or the network device does not send or schedule a new transmission of the first HARQ process corresponding to the first destination or the first SL connection.

In a possible implementation manner, the resource configuration information of the first destination or the first SL connection may be determined not to be sent or not to be scheduled according to the running situation of at least one of the retransmission timer retransmission timer, the duration timer on duration timer and the inactivity timer of the DRX corresponding to the first HARQ process. For example, it is determined that the network device does not send or schedule the resource configuration information for the first destination or first SL connection when at least one of: only a retransmission timer retransmission timer corresponding to the first HARQ process is running on DRX of the first interface of the second communication device; the retransmission timer retransmission timer corresponding to the first HARQ process is running on the DRX of the first interface of the second communication device, and the retransmission timers retransmission timer of other HARQ processes except the first HARQ process are not running or not running; the duration timer on duration timer and/or the inactivity timer are not running on DRX of the first interface of the second communication device; the corresponding duration timer on duration timer and/or inactivity timer on the DRX of the second interface of the second communication device is not running.

It should be appreciated that the first interface of the second communication device may be a null interface, e.g. Uu interface, for communication with the network device; the second interface of the second communication device may be an interface for communication with the first communication device, e.g. a SL port or a PC5 port. Accordingly, the "DRX of the first interface" may be Uu DRX, and the "DRX of the second interface" may be SL DRX.

In another possible implementation, it may be determined that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection according to the type of HARQ process corresponding to the running retransmission timer retransmission timer.

Wherein optionally, the types of HARQ processes include HARQ processes configured for the first channel and HARQ processes not configured for the first channel. When the first channel is a PUCCH, the type of HARQ process includes a HARQ process configuring the PUCCH and a HARQ process not configuring the PUCCH.

In this embodiment of the present application, when the types of HARQ processes corresponding to the running retransmission timer retransmission timer are all HARQ processes that are not configured with the first channel, it may be determined that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection; alternatively, when the number of HARQ processes of the running retransmission timer retransmission timer corresponding to the first channel not configured is greater than or equal to the first number, it may be determined that the network device does not send or schedule the resource configuration information of the first destination or the first SL connection, where the first number may satisfy a certain condition, for example, the first number is a certain threshold (for example, 1).

Fig. 5 illustrates another method 500 of wireless communication provided by an embodiment of the present application.

It should be noted that, part of the steps in the method 500 shown in fig. 5 are the same as those of the method 400 shown in fig. 4, and detailed descriptions of the same parts will be omitted herein, and reference is made to the related description in fig. 4.

S501, the second communication device determines that the first HARQ process corresponding to the first destination or the first side uplink SL connection of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process.

Wherein, the first HARQ process may be an HARQ process for SL on Uu port. Optionally, the first HARQ process comprises at least one HARQ process.

For the detailed description of step S501, reference may be made to the description of step S401 in the method 400, which is not repeated here.

S502, the second communication device sends indication information, where the indication information is used to indicate that the first HARQ process of the second communication device has not or is not configured with the first channel or the first resource, and correspondingly, the first communication device receives the indication information.

Specifically, in the embodiment of the present application, the second communication device may be a transmitting end TX, and the first communication device may be a receiving end RX.

S503, the first communication device starts a retransmission timer retransmission timer corresponding to at least one SL process corresponding to the first HARQ process on SL.

It should be appreciated that at least one SL process described above is used for communication over the interface between the second communication device and the first communication device. The retransmission timer retransmission timer corresponding to at least one SL process in step S503 is a retransmission timer of the first communication device on SL DRX.

Specifically, in the embodiment of the present application, after receiving the indication information, the first communication device starts retransmission timer corresponding to the first HARQ process, whether or not the data is successfully decoded.

Optionally, if the first communication device receives the indication information, the first communication device may start the corresponding retransmission timer after or when a hybrid automatic repeat request round trip time timer (hybrid automatic repeat request round trip time timer, HARQ RTT timer) corresponding to at least one SL process corresponding to the first HARQ process indicated in the indication information expires; or if the first communication device receives the indication information, the first communication device may start retransmission timer a first symbol or a first slot after PSFCH transmission or PSFCH resource ends in a physical side uplink feedback channel PSFCH corresponding to the SL process corresponding to the first HARQ process indicated in the indication information; or, if the first communication device receives the indication information, the corresponding retransmission timer may be started when or after receiving or monitoring the SCI corresponding to at least one SL process corresponding to the first HARQ process indicated in the indication information.

In an embodiment of the present application, the first symbol or the first slot may include the first symbol or the first slot. Alternatively, the first symbol or the first slot includes an nth symbol or an nth slot, and N is a positive integer. Alternatively, the first symbol or the first slot includes a superposition of an nth symbol or an nth slot and an offset, where N is a positive integer.

In a possible implementation, HARQ feedback corresponding to the at least one SL process is disabled in the first destination or on the first SL connection. Alternatively, SL HARQ feedback is disabled. It should be understood that SL HARQ feedback disabling may be understood as not feeding back a reception situation of information to the second communication device after the first communication device receives the information sent by the second communication device, where the reception situation information includes ACK or NACK.

The "SL process" in the embodiment of the present application may be replaced with the "HARQ process".

It should be understood that, in various embodiments of the present application, the threshold value (e.g., the first threshold value, the second threshold value, the third threshold value, etc.) may be a preset value, or may be a received configuration value, or may be a value obtained according to a certain calculation formula, which is not limited in this application.

It should also be understood that in various embodiments of the present application, "air interface" and "interface" are expressed in the same sense, and both may be interchanged.

During the side-uplink communication between the terminal devices, the transmitting end TX may not receive the physical side-uplink feedback channel PSFCH or the SL HARQ feedback sent by the receiving end RX, so that the transmitting end cannot determine whether the receiving end starts the corresponding retransmission timer, for example, the TX does not know whether the RX starts the retransmission timer corresponding to the PSFCH, which may cause packet loss of the transmission data.

For example, according to Uu DRX logic, RX does not activate retransmission timer of SL HARQ feedback/PSFCH corresponding to SL process (alternatively "SL HARQ process") not received by TX when it successfully decodes data, otherwise does activate retransmission timer if it does not successfully decode data. The TX does not know whether the RX successfully decodes the corresponding data, or whether the RX starts the corresponding retransmission timer in SL DRX, because it fails to receive the SL HARQ feedback/PSFCH. If mode1 is used when TX fails to receive SL HARQ feedback/PSFCH, NACK may be sent to the base station, which may then schedule retransmission or new transmission resources for the corresponding SL process, or new transmission or retransmission resources for other SL processes. When TX receives new transmission or retransmission resources of other SL processes, RX may lose packets if new transmission or retransmission resources of the other SL processes are used for data transmission, and RX does not start retransmission timer, since it is not known whether RX starts corresponding retransmission timer at SL DRX, and it is not determined whether RX is in active time.

It should be appreciated that reasons for the TX not receiving the PSFCH sent by the RX include, but are not limited to: collision of TX transmit PSFCH with receive PSFCH results in no PSFCH received for RX transmission; the SCI that TX sends to RX indicates SL HARQ feedback disable (disabled), or TX indicates through SCI that RX does not send HARQ feedback for SCI scheduled data.

Therefore, in order to avoid the occurrence of data packet loss in SL communication, the embodiment of the present application provides a method for wireless communication, which can avoid packet loss caused by PSFCH when TX does not receive RX in SL communication. I.e., method 600 below.

Fig. 6 illustrates a method 600 of wireless communication provided by an embodiment of the present application.

S601, the second communication device determines that the first PSFCH is not received, where the first PSFCH is used for the first communication device to send feedback information to the second communication device.

Specifically, in the embodiment of the present application, the second communication device may be TX, and the first communication device may be RX. The feedback information may be HARQ feedback. The first PSFCH is used to send feedback information to the second communication device by the first communication device, which is understood as carrying feedback information sent by the first communication device to the second communication device. Further, optionally, before the above step S601, the second communication device may configure SL DRX for the first communication device or may send data to the first communication device, so that the first communication device may send corresponding feedback information to the second communication device or not send corresponding feedback information to the second communication device.

It should be appreciated that in the embodiments of the present application, the first communication device and the second communication device may communicate using SL unicast or SL multicast. When the communication is performed by adopting the SL unicast, the SL connection between the first communication device and the second communication device is required to be established. Multiple SL processes may be associated with one SL connection. When SL DRX is employed, one SL process corresponds to one retransmission timer retransmission timer, i.e. one SL connection may correspond to multiple retransmission timers, and one SL connection may correspond to one persistence timer on duration timer and one inactivity timer. Or it may be understood that there are multiple PSFCHs corresponding to one SL connection, such as the first PSFCH described above, one PSFCH corresponding to one SL process (e.g., the first PSFCH corresponding to the first SL process), and thus one PSFCH corresponding to one retransmission timer retransmission timer. When the first communication device and the second communication device communicate by adopting the SL multicast, the first communication device and the second communication device do not need to establish the SL connection, and at this time, the SL communication between the first communication device and the second communication device can be indicated by an identifier corresponding to the SL multicast service, and the identifier can comprise a destination identifier, for example, destination layer-2ID.

Optionally, the method 600 may include step S602:

s602, the second communication device determines not to schedule the data of the second SL process, or determines not to start the retransmission timer retransmission timer corresponding to the first PSFCH.

In a possible implementation manner, the second communication device determines that the data of the second SL process is not scheduled according to the running situation of the SL DRX related timer at the first communication device side. For example, the second communication device may determine not to schedule the data of the second SL process and/or not to schedule the new transmission of the first SL process according to the fact that the retransmission timer retransmission timer corresponding to the second SL process on the first communication device side is not running/not running, and the duration timer on duration timer and the inactivity timer corresponding to the SL connection or destination (destination) corresponding to the second SL process are not running/not running. Wherein the first SL process corresponds to the first PSFCH. Optionally, the second SL process is another SL process except the first SL process corresponding to the first PSFCH.

In another possible implementation, the second communication device determines that its locally maintained retransmission timer retransmission timer corresponding to the first PSFCH of the SL DRX timers on the first communication device side is not started. For example, when the second communication device determines that the first PSFCH is not received, it is determined that the retransmission timer retransmission timer corresponding to the first PSFCH corresponding to the first communication device side SL DRX timer is not started.

Therefore, when the second communication device configures the SL DRX for the first communication device, but does not receive the corresponding HARQ feedback information of the first communication device, the data of the corresponding SL process is determined not to be scheduled or a retransmission timer corresponding to the corresponding feedback information is not started, so that the situation of data packet loss caused by the fact that the second communication device does not receive the feedback information is avoided.

In this embodiment of the present application, the second communication device determines that the data not scheduling the second SL process includes a new transmission or retransmission of the second SL process, or the transmission resource (e.g., SL grant) determined by the second communication device is not used for the new transmission or retransmission of the second SL process.

In the embodiment of the present application, according to the running condition of the timer at the first communication device side, the second communication device may include: the second communication equipment is used for maintaining the running condition of the timer corresponding to the timer of the first communication equipment side according to the running condition of the timer.

Optionally, the second SL process does not include a SL process for SL HARQ feedback de-enabling.

Optionally, in step S601, the second communication device determines that the first PSFCH is not received, and may alternatively determine that the SL HARQ feedback corresponding to the first SCI is disabled by the second communication device, where the first SCI corresponds to the first SL process.

It should be understood that in the embodiment of the present application, the second communication device may perform selection of the destination communication device or destination service (destination) and selection of transmission resources, for example, the first communication device selected above is the destination communication device selected by the second communication device. Alternatively, the second communication device may match the candidate destination communication device or candidate destination service with the determined or selected transmission resource, select the destination communication device or destination service from the candidate destination communication devices or candidate destination services, and configure the determined or selected transmission resource for the destination communication device or destination service. At least one transmission resource may be selected from a set of transmission resources before the destination communication device or destination traffic is selected for the at least one transmission resource. It should also be appreciated that the transmission resources may be transmission resources for SL communication, such as SL grant.

It should also be understood that in the embodiments of the present application, selecting the destination communication device or the destination service (destination) may be replaced by selecting the destination communication device identifier or the destination service identifier (destination ID).

Alternatively, the selection of the destination communication device or the destination service identification and the selection of the transmission resource by the second communication device may precede steps S601 and S602. For example, before steps S601 and S602, the second communication device selects a destination communication device (destination) or a destination communication device identification (destination ID) for at least one SL grant, or the second communication device configures a destination communication device (destination) or a destination communication device identification (destination ID) for at least one SL grant.

In this application, "destination communication device" may be replaced with "destination service".

Optionally, the method 600 may include step S603:

s603, when the second communication device selects the destination communication device (destination), the SL DRX active time of the destination communication device is used regardless of whether the retransmission timer corresponding to the SL process for which the PFSCH is not received is started.

Specifically, in the embodiment of the present application, when the second communication device selects the destination communication device (destination), the SL DRX active time of the destination communication device is used regardless of whether the retransmission timer of the SL process corresponding to the PFSCH is started or not, which may be understood that the second communication device may determine whether the transmission resource is within the active time corresponding to the SL DRX corresponding to the candidate destination communication device when selecting the destination communication device (destination), or may be performed according to the relationship between the transmission resource and the active time corresponding to the SL DRX corresponding to the candidate destination communication device when selecting the destination communication device. The activation time corresponding to the candidate destination communication device may be not considered whether the retransmission timer etransmission timer of the SL process corresponding to the PSFCH is started when the second communication device does not receive the SL process. For example, when a candidate destination communication device of the second communication device is the first communication device, the activation time of the first communication device does not consider whether the retransmission timer retransmission timer corresponding to the first PSFCH is started or not when the first communication device corresponds to the SL DRX, or if only the retransmission timer etransmission timer of the SL process corresponding to the first PSFCH (i.e., the SL process corresponding to the PSFCH is not received) is running, that is, when the retransmission timers of other SL processes of the SL DRX are not running and neither the duration timer nor the inactivity timer are running, the first communication device is not considered to be in the active time of the activation time.

Optionally, the method 600 may include step S604:

s604, the second communication device determines according to the activation time of the candidate destination communication device when selecting transmission resources.

Specifically, in the embodiment of the present application, when the second communication device performs transmission resource selection, the second communication device may determine the activation time of the candidate destination communication device, where the activation time of the candidate destination communication device is used to match with the transmission resource.

In a possible implementation manner, the second communication device determines according to the activation time of the candidate destination communication device, which can be understood that when the second communication device performs transmission resource selection, and any one of the continuous timer on duration timer, the inactivity timer, and the retransmission timer retransmission timer corresponding to the PSFCH sent by the candidate destination communication device is received by the second communication device, the second communication device considers that the candidate destination communication device is at the activation time; alternatively, when the second communication device performs transmission resource selection, the activation time of the associated or considered candidate destination communication device does not include a time when only the retransmission timer retransmission timer corresponding to the PSFCH that the second communication device does not receive the transmission of the candidate destination communication device is running, but the retransmission timers of other SL processes of the SL DRX of the candidate destination communication device are not running, and neither the duration timer nor the inactivity timer is running, in other words, when the second communication device determines the activation time of the candidate destination communication device, whether the retransmission timer etransmission timer corresponding to the PSFCH that the second communication device does not receive the transmission of the candidate destination communication device is running is not considered, for example, when the candidate destination communication device is the first communication device, the second communication device does not consider the running time of the retransmission timer etransmission timer corresponding to the first PSFCH when determining the activation time of the first communication device, or whether the retransmission timer retransmission timer corresponding to the first PSFCH is running is not considered by the second communication device.

In another possible implementation, the candidate destination communication device's activation time being used to match the transmission resource may be understood as the second communication device may determine whether to select or exclude the first transmission resource based on whether the first transmission resource is within the activation time of the candidate communication device. It should be appreciated that the first transmission resource is at least one of the transmission resources, e.g., the first transmission resource is a first SL grant, which is at least one of the set of SL grants.

Alternatively, the determination of whether the first transmission resource is within the activation time of the candidate destination communication device may be based on whether the first transmission resource is within the run time of the timer of the candidate destination communication device. Optionally, when the second communication device determines that the first transmission resource meets the first condition, it determines to discard the first transmission resource. For example, when the second communication device determines that the first transmission resource is not within the running time of the duration timer on duration timer and the inactivity timer of any candidate target communication device or the running time of the retransmission timer retransmission timer corresponding to the received PSFCH (i.e., the first condition), the second communication device may discard the first transmission resource.

It should be understood that, alternatively, when all transmission resources in the second communication device meet the first condition, a resource reselection may be triggered to re-reserve the resources.

Optionally, the method 600 may include step S605:

s605, when the second communication device determines that the first PSFCH is not received, the second communication device does not request transmission resources from the network device.

Specifically, in the embodiment of the present application, under mode1, when the second communication device does not receive the feedback information of the first communication device after the second communication device configures the SL DRX for the first communication device, that is, does not receive the first PSFCH, the second communication device does not request the network device for retransmission resources.

Optionally, the method 600 may include step S606:

s606, when the second communication device determines to schedule the data of the third SL process.

In a possible implementation manner, the second communication device determines, according to the running condition of the SL DRX related timer at the first communication device side, data for scheduling the third SL process. For example, the second communication device determines that the data of the third SL process can be scheduled when the second communication device determines that the continuous timer on duration timer and the inactivity timer for SL DRX corresponding to the third SL process or the destination (destination) on the first communication device side are not running/not running, and the retransmission timer retransmission timer corresponding to the third SL process is running. Optionally, the third SL process is another SL process except the first SL process corresponding to the first PSFCH. Optionally, the third SL process is a SL process corresponding to the PSFCH or SL HARQ feedback received by the second communications device.

In an embodiment of the present application, the second communication device determines data of a schedulable third SL process, including: the second communication device determines that a new transmission or retransmission of the third SL process may be scheduled.

In this application, data for a certain SL process or HARQ process may be scheduled, including resources may be associated to the SL process or HARQ process, or resources may be used for data transmission for the SL process or HARQ process.

In this application, a new transmission or retransmission of a certain SL process or HARQ process may be scheduled, including that resources may be associated to that SL process or HARQ process, or that resources may be used for the new transmission or retransmission of that SL process or HARQ process.

During side-uplink communication between terminal devices, for data scheduled by SCI with HARQ feedback disabled, TX will not receive SL HARQ feedback of RX, so TX does not know whether RX starts corresponding retransmission timer retransmission timer on SL DRX, possibly causing TX to send data packet loss to RX.

For example, when the TX transmitted SCI indicates that SL HARQ feedback is disabled (i.e., indicates that RX does not transmit HARQ feedback for the data scheduled by the SCI), if the RX successfully decodes the data according to the logic of Uu DRX, retransmission timer of the SL process corresponding to the SCI of the SL HARQ feedback disabled (alternatively, "SL HARQ process") is not started on SL DRX, otherwise, retransmission timer is started if the data is not successfully decoded. Since TX does not receive the SL HARQ feedback/PSFCH of the SCI scheduled data, it is not known whether RX successfully decodes the corresponding data, or whether RX starts the corresponding retransmission timer at SL DRX, and therefore, resources (such as SL grant) may be associated to other SL processes except for the SCI corresponding SL process of the SL HARQ feedback disabled, if new transmission or retransmission resources of the other SL processes are used for data transmission, and if RX does not start the retransmission timer, RX may lose packets.

Therefore, in order to avoid the situation of RX packet loss caused by the above-mentioned SL HARQ feedback de-enabling, the embodiments of the present application provide a wireless communication method, which can avoid resource waste such as RX packet loss caused by the SL HARQ feedback de-enabling. I.e., method 700 below.

Fig. 7 illustrates another method 700 of wireless communication provided by an embodiment of the present application.

S701, the first communication device receives sixth information, which is used to instruct SL HARQ feedback to disable.

Specifically, in the embodiment of the present application, the sixth information may be sent by the second communication device to the first communication device. For example, the first communication device is RX and the second communication device is TX. Optionally, the sixth information is carried in the SCI.

S702, the first communication device receives seventh information, where the seventh information is used to indicate retransmission resource information or blind retransmission resource information.

Specifically, in the embodiment of the present application, the seventh information may be sent by the second communication device to the first communication device.

Optionally, seventh information is carried in the SCI. For example, the sixth information and the seventh information are carried in the same SCI (e.g., the first SCI).

S703, the first communication device starts a retransmission timer of the SL process corresponding to the sixth information or the seventh information.

In a possible implementation manner, when the HARQ RTT timer of the SL process corresponding to the sixth information or the seventh information times out, the first communication device starts a retransmission timer of the SL process corresponding to the sixth information or the seventh information, whether the first communication device successfully decodes the data or not.

In another possible implementation manner, when the first communication device receives the SCI corresponding to the sixth information or the seventh information, the first communication device starts a retransmission timer of the SL process corresponding to the sixth information or the seventh information, whether the data is successfully decoded or not.

Therefore, by the method, when the RX configures SL DRX, the RX packet loss caused by the enabling of SL HARQ feedback corresponding to the SL process is avoided.

Fig. 8 and 9 are schematic structural diagrams of a possible wireless communication device according to an embodiment of the present application. These devices may implement any of the functions of the communication device in the method embodiments described above, and thus may also implement the advantages provided by the method embodiments described above. In the embodiment of the application, the device may be a communication device, or may be a module (such as a chip) applied to the communication device.

Fig. 8 is a schematic block diagram of an apparatus 1000 for wireless communication according to an embodiment of the present application, where the apparatus 1000 may include a processing unit 1001 and a transceiver unit 1002. Wherein the transceiver unit may be a receiving unit and/or a transmitting unit.

When the apparatus 1000 is configured to implement the function of the first communication device in the method embodiment shown in fig. 2, the receiving unit is configured to receive first information, where the first information includes first side uplink discontinuous reception SL DRX configuration information; the processing unit is configured to determine to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and state information of the first communication device.

When the apparatus 1000 is configured to implement the function of the second communication device in the method embodiment shown in fig. 2, the sending unit is configured to send first information, where the first information includes first dl discontinuous reception SL DRX configuration information; the receiving unit is configured to receive second information, where the second information is used to instruct the first communication device to reject the first SL DRX configuration, or the second information is used to instruct the first SL DRX configuration to fail.

When the apparatus 1000 is configured to implement the function of the second communication device in the method embodiment of fig. 4, the processing unit is configured to determine that the first HARQ process of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process; the processing unit is further configured to determine, according to an operation condition of a timer of a discontinuous reception DRX mechanism corresponding to the first HARQ process, that the network device does not send or does not schedule resource configuration information of a first destination or a first SL connection, where the first destination or the first SL connection is a destination or an SL connection corresponding to the first HARQ process.

When the apparatus 1000 is configured to implement the function of the network device in the method embodiment shown in fig. 4, the processing unit is configured to determine that the first HARQ process of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process; the processing unit is further configured to determine, according to an operation condition of a timer of a DRX mechanism corresponding to the first HARQ process, not to send or not to schedule resource configuration information of a first destination or a first SL connection, where the first destination or the first SL connection is a destination or an SL connection corresponding to the first HARQ process.

When the apparatus 1000 is configured to implement the function of the second communication device in the method embodiment of fig. 5, the processing unit is configured to determine that the first HARQ process corresponding to the first destination or the first side link SL connection of the second communication device is not configured or not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information corresponding to the first HARQ process; the sending unit is configured to send indication information, where the indication information is used to indicate that the first HARQ process of the second communication device is not configured or not configured with the first channel or the first resource.

When the apparatus 1000 is configured to implement the function of the first communication device in the method embodiment shown in fig. 5, the receiving unit is configured to receive indication information, where the indication information is used to indicate that a first HARQ process corresponding to a first destination or a first side link SL connection of the second communication device has no or is not configured with a first channel or a first resource, where the first channel or the first resource is used to carry feedback information of the first HARQ process; the processing unit is configured to start a retransmission timer retransmission timer corresponding to the first HARQ process.

For a more detailed description of the processing unit 1001 and the transceiver unit 1002, reference may be made to the relevant description of the method embodiments described above, which are not explained here.

Fig. 9 shows a schematic block diagram of an apparatus 2000 to which embodiments of the present application are applied. Any of the communication devices involved in any of the methods 200-600 described above may be implemented by the apparatus shown in fig. 9.

It should be appreciated that the apparatus 2000 may be a physical device, a component (e.g., an integrated circuit, a chip, etc.) of a physical device, or a functional module in a physical device.

As shown in fig. 9, the apparatus 2000 includes: one or more processors 2001. The processor 2001 may store execution instructions for performing the methods of the embodiments of the present application. Optionally, an interface may be invoked in the processor 2001 to implement the receive and transmit functions. The interface may be a logical interface or a physical interface, which is not limited. For example, the interface may be a transceiver circuit, or an interface circuit. The transceiver circuitry, or interface circuitry, for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit or the interface circuit may be used for reading and writing codes/data, or the transceiver circuit or the interface circuit may be used for transmitting or transferring signals.

Alternatively, the interface may be implemented by a transceiver. Optionally, the apparatus 2000 may also include a transceiver 2003. The transceiver 2003 may be referred to as a transceiver unit, a transceiver circuit, a transceiver, etc. for implementing a transceiver function.

Optionally, the apparatus 2000 may also include a memory 2002. The specific deployment location of the memory 2002 is not specifically limited in the embodiments of the present application, and the memory may be integrated into the processor or may be independent of the processor. In the case where the device 2000 does not include memory, the device 2000 may be provided with processing functionality, and the memory may be disposed in other locations (e.g., a cloud system).

The processor 2001, memory 2002 and transceiver 2003 communicate with each other via internal communication paths to transfer control and/or data signals.

It is understood that although not shown, the device 2000 may also include other devices, such as input devices, output devices, batteries, etc.

Alternatively, in some embodiments, memory 2002 may store execution instructions for performing the methods of embodiments of the present application. Processor 2001 may execute instructions stored in memory 2002 in conjunction with other hardware (e.g., transceiver 2003) to perform the steps performed by the methods shown below, the specific operation and benefits of which may be found in the description of the method embodiments below.

The methods disclosed in the embodiments of the present application may be applied to the processor 2001 or implemented by the processor 2001. Processor 2001 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the method may be performed by integrated logic circuitry in hardware in a processor or by instructions in software. The processor may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a memory medium well known in the art such as random access memory (random access memory, RAM), flash memory, read-only memory (ROM), programmable read-only memory, or electrically erasable programmable memory, registers, and the like. The storage medium is located in a memory, and the processor reads instructions from the memory and, in combination with its hardware, performs the steps of the method described above.

It is to be appreciated that memory 2002 can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory RAM, which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In addition, in the present application, the apparatus 1000 is presented in the form of functional modules. A "module" herein may refer to an application specific integrated circuit ASIC, an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the described functionality. In a simple embodiment, one skilled in the art will appreciate that the apparatus 1000 may take the form shown in FIG. 9. The processing unit may be implemented by the processor 2001 shown in fig. 9. Alternatively, if the computer device shown in fig. 9 includes a memory 2002, the processing unit 1001 may be implemented by the processor 2001 and the memory 2002. The transceiver unit 1002 may be implemented by the transceiver 2003 shown in fig. 9. The transceiver 2003 includes a receiving function and a transmitting function. In particular, the processor is implemented by executing a computer program stored in a memory. Alternatively, when the apparatus 1000 is a chip, the functions and/or implementation procedures of the transceiver unit 1002 may also be implemented by pins or circuits, etc. Alternatively, the memory may be a storage unit in the chip, such as a register, a cache, or the like, and the storage unit may also be a storage unit in the computer device that is located outside the chip, such as the memory 2002 shown in fig. 9, or may be a storage unit disposed in another system or device, which is not in the computer device. Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the 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.

Various aspects or features of the present application can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic strips, etc.), optical disks (e.g., compact disk, CD, digital versatile disk, digital versatile disc, DVD, etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory, EPROM), cards, sticks, or key drives, etc. Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

The present application also provides a computer readable medium having stored thereon a computer program which, when executed by a computer, performs the functions of any of the method embodiments described above.

The present application also provides a computer program product which, when executed by a computer, implements the functions of any of the method embodiments described above. In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

It should be understood that, in the embodiment of the present application, the "indication information" indicates the name of the information, and the function of the information is not limited, for example, the "indication information" may not have the function of indication.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It should also be understood that in this application, "received" may be expressed as "received" and "received" may also be expressed as "received," and that "both may be interchanged.

It should also be understood that, in this application, "when …," "if," and "if" all refer to that the UE or the base station will make a corresponding process under some objective condition, and are not limited in time, nor do they require that the UE or the base station must have a judgment action when it is implemented, nor are they meant to have other limitations.

In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The term "at least one of … …" or "at least one of … …" herein means all or any combination of the listed items, e.g., "at least one of A, B and C," may mean: there are six cases where A alone, B alone, C alone, both A and B, both B and C, and both A, B and C.

In this application, unless specifically stated otherwise, "at least one" means one or more, and "a plurality" means two or more.

It should be understood that in embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the 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.

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

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

the first communication device receives first information, the first information comprising first side-link discontinuous reception, SL, DRX, configuration information;

the first communication device determines to accept or reject the first SL DRX configuration information according to the first SL DRX configuration information and the state information of the first communication device.

2. The method of claim 1, wherein the status information of the first communication device comprises at least one of:

SL DRX configuration information for a second SL connection of the first communication device;

transmitting resource configuration information of the first communication device;

energy saving requirement information of the first communication device;

the power information of the first communication device;

the first communication device suggests or expects SL DRX configuration information.

3. The method of claim 2, wherein the first communication device determining to accept or reject the first SL DRX configuration information based on the first SL DRX configuration information and state information of the first communication device, comprises:

and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the SLDRX configuration information of the second SL connection.

4. The method of claim 3, wherein the first SL DRX configuration information does not match the DRX configuration information of the second SL connection, comprising:

and the overlapping degree of the first activation time corresponding to the first SL DRX configuration information and the second activation time corresponding to the SLDRX configuration information of the second SL connection is smaller than or equal to a first threshold value.

5. The method according to any of claims 2-4, wherein the SL DRX configuration information of the second SL connection comprises:

the first communication device is used as SL DRX configuration information of a sending end, and/or the first communication device is used as other SL DRX configuration information of a receiving end except the first SL DRX configuration information.

6. The method of claim 2, wherein the first communication device determining to accept or reject the first SL DRX configuration information based on the first SL DRX configuration information and state information of the first communication device, comprises:

and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the transmission resource configuration information of the first communication equipment.

7. The method of claim 6, wherein the first SL DRX configuration information does not match transmission resource configuration information of the first communication device, comprising:

And the time of overlapping the activation time indicated by the first SLDRX configuration information and the time area indicated by the transmission resource configuration information in the first time is smaller than or equal to a second threshold value.

8. The method of claim 2, wherein the first communication device determining to accept or reject the first SL DRX configuration information based on the first SL DRX configuration information and state information of the first communication device, comprises:

and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the energy-saving requirement information of the first communication equipment.

9. The method of claim 8, wherein the first SL DRX configuration information does not match power saving requirement information for the first communication device, comprising:

the first energy-saving gain corresponding to the first SL DRX configuration information is smaller than or equal to the second energy-saving gain corresponding to the energy-saving requirement information; or alternatively, the first and second heat exchangers may be,

the ratio of the first energy saving gain corresponding to the first SL DRX configuration information to the second energy saving gain corresponding to the energy saving requirement information is smaller than or equal to a third threshold value; or alternatively, the process may be performed,

And the first energy saving gain corresponding to the first SL DRX configuration information is smaller than or equal to a fourth threshold value.

10. The method of claim 2, wherein the first communication device determining to accept or reject the first SL DRX configuration information based on the first SL DRX configuration information and state information of the first communication device, comprises:

and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the activation time corresponding to the first SL DRX configuration information is larger than or equal to a fifth threshold value or the energy saving gain corresponding to the first SL DRX configuration information is smaller than a sixth threshold value and the electric quantity information is smaller than a seventh threshold value.

11. The method of claim 2, wherein the first communication device determining to accept or reject the first SL DRX configuration information based on the first SL DRX configuration information and state information of the first communication device, comprises:

and the first communication equipment determines to reject the first SL DRX configuration information according to the fact that the first SL DRX configuration information is not matched with the SL DRX configuration information suggested or expected by the first communication equipment.

12. The method of claim 11, wherein the first SL DRX configuration information does not match the first communication device suggested or desired SL DRX configuration information, comprising:

And the overlapping degree of the first activation time corresponding to the first SL DRX configuration information and the third activation time corresponding to the SL DRX configuration information suggested or expected by the first communication equipment is smaller than or equal to an eighth threshold value.

13. The method according to any one of claims 1-12, further comprising:

the first communication device sends second information, where the second information is used to indicate that the first SL DRX configuration is rejected, or the second information is used to indicate that the first SL DRX configuration fails.

14. The method according to any of claims 1-13, wherein the first SL is an SL between the first communication device and a second communication device.

15. The method according to any of claims 1-14, wherein the first communication device is a receiving end.

16. A method of wireless communication, comprising:

the method comprises the steps that a second communication device determines that a first hybrid automatic repeat request (HARQ) process of the second communication device is not provided with or is not configured with a first channel or a first resource, and the first channel or the first resource is used for bearing feedback information corresponding to the first HARQ process;

and the second communication device determines that the network device does not send or schedule the resource configuration information of a first destination or a first SL connection according to the running condition of a timer of a discontinuous reception DRX mechanism corresponding to the first HARQ process, wherein the first destination or the first SL connection is the destination or the SL connection corresponding to the first HARQ process.

17. The method according to claim 16, wherein the second communication device determining, according to the running condition of the timer of the DRX mechanism corresponding to the first HARQ process, the resource configuration information of the first destination or the first SL connection that is not transmitted or not scheduled by the network device, includes:

determining that the network device does not send or schedule resource configuration information for the first destination or the first SL connection when at least one of:

only a retransmission timer retransmission timer corresponding to the first HARQ process is running on DRX of a first interface of the second communication device;

the retransmission timer retransmission timer corresponding to the first HARQ process is running on the DRX of the first interface, and the retransmission timer retransmission timer corresponding to the first destination or the first SL connection for other HARQ processes except the first HARQ process is not running or not running;

the duration timer on duration timer and the inactivity timer corresponding to the first destination or the first SL connection on the DRX of the second interface of the second communication device are neither running nor running.

18. The method according to claim 16 or 17, wherein the second communication device determining that the first hybrid automatic repeat request, HARQ, process of the second communication device has no or is not configured with a first channel or a first resource for carrying feedback information of the first HARQ process, comprising:

The second communication device determining the first channel which is not configured or not configured for carrying feedback information of a HARQ process corresponding to a first destination or a first SL connection of the second communication device; or alternatively, the first and second heat exchangers may be,

the second communication device determining feedback resources of HARQ processes corresponding to a first destination or a first side-link SL connection of the second communication device that are not or are not configured on an air interface in communication with the network device; or alternatively, the first and second heat exchangers may be,

the second communication device determining resources that are not or not configured for transmitting HARQ feedback corresponding to a first destination or a first side uplink SL connection of the second communication device to the network device; or alternatively, the first and second heat exchangers may be,

the second communication device determining SL HARQ feedback resources for a first HARQ process corresponding to a first destination or a first side-link SL connection of the second communication device that is not or is not configured on an air interface in communication with a network device; or alternatively, the first and second heat exchangers may be,

the second communication device determining resources that are not or not configured for sending SL HARQ feedback of a corresponding first HARQ process of a first destination or a first side uplink SL connection of the second communication device to the network device; or alternatively, the first and second heat exchangers may be,

the second communication device determines that third information received from the network device indicates that a first destination of the second communication device or a first hybrid automatic repeat request (HARQ) process corresponding to a first Side Link (SL) connection does not have the first channel resource, and the first channel is used for carrying feedback information of the first HARQ process.

19. The method according to claims 16-18, wherein the second communication device determining that the network device does not send or schedule resource configuration information for the first destination or the first SL connection, comprises:

the second communication device determines that the network device does not send or schedule new transmissions or retransmissions of other HARQ processes except the first HARQ process corresponding to the first destination or the first SL connection; and/or the number of the groups of groups,

the second communication device determines that the network device does not send or schedule a new transmission of the first HARQ process.

20. The method according to any of claims 16-19, wherein the first channel comprises a physical uplink control channel, PUCCH, or a physical uplink shared channel, PUSCH.

21. A method of wireless communication, comprising:

the method comprises the steps that a first communication device receives indication information, wherein the indication information is used for indicating that a first HARQ (hybrid automatic repeat request) process corresponding to a first destination or a first side link SL connection of a second communication device is not configured with a first channel or a first resource, and the first channel or the first resource is used for bearing feedback information of the first HARQ process;

The first communication device starts a retransmission timer retransmission timer corresponding to the first HARQ process.

22. The method of claim 21, wherein HARQ feedback for the first HARQ process is disabled.

23. The method of claim 21 or 22, wherein the first communication device starts a retransmission timer retransmission timer corresponding to the first HARQ process, further comprising:

the first communication device starts the retransmission timer retransmission timer after or when a hybrid automatic repeat request round trip time timer (HARQ RTT) timer corresponding to the first HARQ process is overtime; or alternatively, the first and second heat exchangers may be,

the first communication device starts the retransmission timer retransmission timer in a first symbol or first slot after the physical side uplink feedback channel PSFCH transmission or PSFCH resource ends.

24. The method of claim 23, wherein the first symbol or the first slot comprises a first symbol or a first slot.

25. The method according to any of claims 21-24, wherein a first HARQ process corresponding to a first destination or first side-link SL connection of a second communication device is not configured or not configured with a first channel for carrying feedback information of the first HARQ process, comprising:

The second communication device has no or is not configured to carry the first channel of feedback information of the HARQ process corresponding to the first destination or the first SL connection of the second communication device; or alternatively, the first and second heat exchangers may be,

the second communication device has no or is not configured with feedback resources of the HARQ process corresponding to the first destination or the first side uplink SL connection of the second communication device on an air interface in communication with the network device; or alternatively, the first and second heat exchangers may be,

the second communication device has no or no resources configured for transmitting HARQ feedback corresponding to a first destination or a first side-link SL connection of the second communication device to a network device; or alternatively, the first and second heat exchangers may be,

a SL HARQ feedback resource of a first HARQ process corresponding to a first destination or a first side uplink SL connection of the second communication device is not or is not configured in the second communication device on an air interface in communication with a network device; or alternatively, the first and second heat exchangers may be,

the second communication device has no or no resources configured for sending SL HARQ feedback of a first HARQ process corresponding to a first destination or a first side uplink SL connection of the second communication device to a network device; or alternatively, the first and second heat exchangers may be,

and the third information received from the network device in the second communication device indicates that a first HARQ process corresponding to a first destination or a first side link SL connection of the second communication device does not have the first channel resource, and the first channel is used for carrying feedback information of the first HARQ process.

26. An apparatus for wireless communication, configured to perform the method of any of claims 1-15; or alternatively, the process may be performed,

for performing the method of any one of claims 16-20; or alternatively, the process may be performed,

for performing the method of any one of claims 21-25.

27. An apparatus for wireless communication, comprising at least one processor coupled to a memory;

the memory is used for storing programs or instructions;

the at least one processor being configured to execute the program or the instructions to cause the apparatus to implement the method of any one of claims 1-15; or alternatively, the process may be performed,

implementing the method of any one of claims 16-20; or alternatively, the process may be performed,

implementing the method of any one of claims 21-25.

28. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed, implements the method of any one of claims 1-15; or alternatively, the process may be performed,

implementing the method of any one of claims 21-25.

29. A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-15; or alternatively, the process may be performed,

Performing the method of any one of claims 16-20; or alternatively, the process may be performed,

performing the method of any one of claims 21-25.

30. A system of wireless communication comprising at least two of a first communication device, a second communication device and a network device, the system being configured to perform the method of any of claims 1-15; or alternatively, the process may be performed,

for performing the method of any one of claims 21-25.