CN117119537A

CN117119537A - Method and apparatus for wireless communication

Info

Publication number: CN117119537A
Application number: CN202210526962.5A
Authority: CN
Inventors: 陈宇; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2023-11-24
Also published as: WO2023221798A1

Abstract

A method and apparatus for wireless communication includes receiving first QoS information for an interactive service; the first QoS information is used to determine a first time offset; transmitting a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window; monitoring PDCCH at the active time of the target DRX group; wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer. The application is beneficial to saving power and ensuring strict time delay requirements through the first QoS information.

Description

Method and apparatus for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and relates to a method and apparatus for improving service quality, interactive service transmission, and in particular, for XR services.

Background

Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet the different performance requirements of various application scenarios, a New air interface technology (NR) is decided to be researched in the 3GPP (3 rd Generation Partner Project, third Generation partnership project) RAN (Radio Access Network ) #72 times of the whole meeting, and standardized Work is started on NR by the 3GPP RAN #75 times of the whole meeting through the WI (Work Item) of NR.

In communication, both LTE (Long Term Evolution ) and 5G NR can be involved in reliable accurate reception of information, optimized energy efficiency ratio, determination of information validity, flexible resource allocation, scalable system structure, efficient non-access layer information processing, lower service interruption and disconnection rate, support for low power consumption, which is significant for normal communication between a base station and a user equipment, reasonable scheduling of resources, balancing of system load, so that it can be said as high throughput, meeting communication requirements of various services, improving spectrum utilization, improving a base stone of service quality, whether embbe (ehanced Mobile BroadBand, enhanced mobile broadband), URLLC (Ultra Reliable Low Latency Communication, ultra-high reliability low latency communication) or eMTC (enhanced Machine Type Communication ) are indispensable. Meanwhile, in the internet of things in the field of IIoT (Industrial Internet of Things), in V2X (vehicle to X) communication (Device to Device) in the field of industry, in communication of unlicensed spectrum, in monitoring of user communication quality, in network planning optimization, in NTN (Non Territerial Network, non-terrestrial network communication), in TN (Territerial Network, terrestrial network communication), in dual connectivity (Dual connectivity) system, in radio resource management and codebook selection of multiple antennas, in signaling design, neighbor management, service management, and beamforming, there is a wide demand, and the transmission modes of information are broadcast and unicast, both transmission modes are indispensable for 5G system, because they are very helpful to meet the above demands.

With the increasing of the scene and complexity of the system, the system has higher requirements on reducing the interruption rate, reducing the time delay, enhancing the reliability, enhancing the stability of the system, and the flexibility of the service, and saving the power, and meanwhile, the compatibility among different versions of different systems needs to be considered in the system design.

The 3GPP standardization organization performs related standardization work for 5G to form a series of standards, and the standard content can be referred to:

https://www.3gpp.org/ftp/Specs/archive/38_series/38.211/38211-g60.zip

https://www.3gpp.org/ftp/Specs/archive/38_series/38.213/38213-g60.zip

https://www.3gpp.org/ftp/Specs/archive/38_series/38.331/38331-g60.zip

https://www.3gpp.org/ftp/Specs/archive/38_series/38.331/38323-g60.zip

disclosure of Invention

In communication systems, power saving and delay reduction are often contradictory, since power saving tends to require sleeping for a longer period of time, which means that traffic cannot be received in time, and how to reduce both power consumption and delay is an important issue. This is particularly important for services that require both tight latency requirements and power savings, such as XR services. XR services include VR (virtual reality) services, AR (augmented reality) and CG (cloud game) services, which have the characteristics of high speed and low time delay, and are interactive services, and strict requirements are placed on response time of the services, for example, gesture information of a user is transmitted to a server, and pictures fed back by the server need to be presented on a terminal of the user in a short time, otherwise, the user can feel obvious time delay, and experience of the user is affected. An XR service includes various data, such as video, audio, data for controlling various sensors, etc., which sometimes have a certain dependency. Therefore, how to better support the services that need to save power and guarantee time delay is a problem to be solved by the application.

The present application provides a solution to the above-mentioned problems.

It should be noted that, in the case of no conflict, the embodiments of any node of the present application and the features in the embodiments may be applied to any other node. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

The application discloses a method used in a first node of wireless communication, comprising the following steps:

receiving first QoS information, wherein the first QoS information aims at interactive service; the first QoS information is used to determine a first time offset;

transmitting a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window;

monitoring PDCCH at the active time of the target DRX group;

wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As one embodiment, the problems to be solved by the present application include: how to save power and ensure the time delay requirement of the service.

As one example, the benefits of the above method include: the power is saved, meanwhile, the flexibility is good, and richer services are supported, especially the services with higher requirements on time delay.

Specifically, according to one aspect of the present application, before the first message is transmitted, a second message is transmitted, the second message including at least the former of the first time offset set and the first time length;

wherein the first message includes an index of the first time offset in the first set of time offsets, a duration of the first time window being the first time length.

Specifically, according to one aspect of the present application, before the first message is sent, a third message is sent, the third message indicating a first set of time windows;

wherein the first set of time windows includes the first time window; the meaning of the first field of the sentence first message indicating a first time window is: the first message includes an index of the first time window in the first set of time windows.

Specifically, according to one aspect of the present application, a fourth message is received before the first message is sent, the fourth message indicating a second set of time windows;

Wherein the first time window is one time window of the second set of time windows; the meaning of the first field of the sentence first message indicating a first time window is: the first message includes an index of the first time window in the second set of time windows.

Specifically, according to one aspect of the present application, a first DRX timer is in an active state when the first message is sent, the first DRX timer being one of an duration, an activity or a retransmission timer, and an expected expiration time of the first DRX timer being earlier than the first time window; the second DRX timer is in a stopped state when the first message is sent; the second DRX timer is an duration timer, an expected starting time of which is later than the first time window.

Specifically, according to one aspect of the present application, a fifth message is sent, the fifth message indicating that the type of the first node is helmet-related;

receiving a sixth message, the sixth message being used to configure the first message;

wherein the fifth message triggers the sixth message, the phrase that the sixth message is used to configure the meaning of the first message is: the sixth message is used to activate or enable or configure at least one parameter of the first message.

Specifically, according to one aspect of the application, a first data block is received;

the act of monitoring the PDCCH at the active time of the DRX group includes receiving a first DCI, where the first DCI indicates a time-frequency resource occupied by the first data block, and the first data block carries a PDU of an interactive service.

Specifically, according to one aspect of the present application, a seventh message is received, the seventh message including a first set of parameters of the target DRX group, the first set of parameters of the target DRX group being used to determine a second time window, the second time window being independent of the first message; the active time of the target DRX group includes the second time window; the duration of the second time window depends on the operating state of the target DRX timer.

Specifically, according to one aspect of the present application, the PDCCH is monitored before the first time window; the act of listening for PDCCH before the first time window is used to determine whether to listen for PDCCH within the first time window;

wherein a third DRX timer is in a stopped state within the first time window, the third DRX timer being used during operation to determine the start of a DRX cycle; sentence the behavior listens to the PDCCH before the first time window is used to determine if listening to the PDCCH within the first time window means that: monitoring the PDCCH in the first time window when the first signal is not detected on the PDCCH or the first signal is detected on the PDCCH and the first signal indicates that the PDCCH is monitored in the first time window; when a first signal is detected on the PDCCH and the first signal indicates that the PDCCH is not monitored within the first time window, the PDCCH is not monitored within the first time window.

Specifically, according to an aspect of the present application, the first node is an internet of things terminal.

In particular, according to one aspect of the application, the first node is a user equipment.

In particular, according to one aspect of the application, the first node is a relay.

In particular, according to one aspect of the application, the first node is an access network device.

Specifically, according to one aspect of the present application, the first node is a vehicle-mounted terminal.

In particular, according to one aspect of the application, the first node is an aircraft.

Specifically, according to one aspect of the present application, the first node is a mobile phone.

The application discloses a method used in a second node of wireless communication, comprising the following steps:

transmitting first QoS information, wherein the first QoS information aims at interactive service; the first QoS information is used to determine a first time offset;

receiving a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window;

the receiver of the first message monitors PDCCH at the active time of the target DRX group;

Specifically, according to one aspect of the present application, before the first message is received, a second message is received, the second message including at least the former of the first set of time offsets and a first length of time;

Specifically, according to one aspect of the present application, a third message is received before the first message is received, the third message indicating a first set of time windows;

Specifically, according to one aspect of the present application, before the first message is received, it is sent to a fourth message, which indicates a second set of time windows;

In particular, according to one aspect of the application, a fifth message is received, the fifth message indicating that the type of sender of the first message is related to a helmet;

transmitting a sixth message, the sixth message being used to configure the first message;

wherein the fifth message triggers the sixth message, the phrase that the sixth message is used to configure the meaning of the first message is: the sixth message is used to activate or enable the first message or the sixth message is used to configure at least one parameter of the first message.

Specifically, according to one aspect of the present application, a first DCI and a first data block are transmitted;

the first DCI indicates a time-frequency resource occupied by the first data block, where the first data block carries a PDU of an interactive service.

Specifically, according to one aspect of the present application, a seventh message is sent, the seventh message including a first set of parameters of the target DRX group, the first set of parameters of the target DRX group being used to determine a second time window, the second time window being independent of the first message; the active time of the target DRX group includes the second time window; the duration of the second time window depends on the operating state of the target DRX timer.

In particular, according to one aspect of the application, the second node is a base station.

In particular, according to one aspect of the application, the second node is a relay.

Specifically, according to an aspect of the present application, the second node is a vehicle-mounted terminal.

In particular, according to one aspect of the application, the second node is an aircraft.

In particular, according to one aspect of the application, the second node is a satellite.

The application discloses a first node used for wireless communication, comprising:

a first receiver that receives first QoS information for an interactive service; the first QoS information is used to determine a first time offset;

a first transmitter that transmits a first message, the first message including at least a first field, the first field of the first message indicating a first time window;

the first receiver monitors PDCCH at the active time of the target DRX group;

The application discloses a second node used for wireless communication, comprising:

a second transmitter that transmits first QoS information for an interactive service; the first QoS information is used to determine a first time offset;

a second receiver that receives a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window;

As an embodiment, the present application has the following advantages over the conventional scheme:

the power is saved and the time delay can be reduced.

A richer service type, such as XR service, may be supported.

The flexibility of the network is increased.

The demand of XR business can be better satisfied.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:

Fig. 1 illustrates a flowchart for receiving first QoS information, transmitting a first message, and listening to a PDCCH at an active time of a target DRX group according to an embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the application;

fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the application;

fig. 5 shows a flow chart of wireless signal transmission according to an embodiment of the application;

FIG. 6 shows a schematic diagram of a first time window according to one embodiment of the application;

FIG. 7 shows a schematic diagram of a first time window according to one embodiment of the application;

FIG. 8 shows a schematic diagram of a first time window according to one embodiment of the application;

FIG. 9 shows a schematic diagram of a first time window according to one embodiment of the application;

fig. 10 shows a schematic diagram in which first QoS information is used to determine a first time offset according to an embodiment of the present application;

FIG. 11 illustrates a schematic diagram of a processing device for use in a first node in accordance with one embodiment of the present application;

Fig. 12 illustrates a schematic diagram of a processing arrangement for use in a second node according to an embodiment of the application.

Description of the embodiments

The technical scheme of the present application will be described in further detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.

Example 1

Embodiment 1 illustrates a flowchart for receiving first QoS information, transmitting a first message, and listening to a PDCCH at an active time of a target DRX group, as shown in fig. 1, according to an embodiment of the present application. In fig. 1, each block represents a step, and it is emphasized that the order of the blocks in the drawing does not represent temporal relationships between the represented steps.

In embodiment 1, a first node in the present application receives first QoS information in step 101; transmitting a first message in step 102; the PDCCH is monitored at an active time of the target DRX group in step 103.

Wherein the first QoS information is for an interactive service; the first QoS information is used to determine a first time offset; the first message includes at least a first field, the first field of the first message indicating a first time window; the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As an embodiment, the first node is a UE (User Equipment).

As an embodiment, the first node is in an RRC connected state.

As an embodiment, the first QoS information is for a first QoS flow.

As a sub-embodiment of this embodiment, the first QoS flow is for carrying interactive traffic.

As one embodiment, the first QoS information is for a first set of QoS flows, the first set of QoS flows including at least two QoS flows.

As an embodiment, the first QoS information is for a first set of PDUs.

As one embodiment, the first QoS information includes: and (5) interactive time delay.

As one embodiment, the first QoS information includes: backhaul interactive latency.

As one embodiment, the first QoS information includes: motion-to-phone latency.

As one embodiment, the first QoS information includes: backhaul time (RTT).

As one embodiment, the first QoS information includes: backhaul delay (round trip delay).

As one embodiment, the first QoS information includes: maximum RTT.

As one embodiment, the first QoS information includes: gesture to explicit time delay.

As one embodiment, the first QoS information includes: gesture-to-render to explicit latency (post-to-render-to-photon time).

As one embodiment, the first QoS information includes: backhaul delay for XR traffic.

As one embodiment, the first QoS information includes: RTT of XR traffic.

As one embodiment, the first QoS information includes: a delay interval.

As one embodiment, the first QoS information includes: an interactive delay interval.

As one embodiment, the first QoS information includes: minimal interactive latency.

As one embodiment, the first QoS information includes: maximum interactive latency.

As one embodiment, the first QoS information includes: minimum RTT.

As one embodiment, the first QoS information includes: maximum RTT.

As one embodiment, the first QoS information includes: minimum XR delay.

As one embodiment, the first QoS information includes: maximum XR delay.

As an embodiment, the first QoS information includes a parameter related to delay that is an average value.

As an embodiment, the first QoS information includes a parameter related to delay that is a minimum.

As an embodiment, the first QoS information includes a parameter regarding delay that is a maximum.

As one embodiment, the first QoS information includes: business structure.

As one embodiment, the first QoS information includes: business models or business templates.

As one embodiment, the first QoS information includes: an upstream PDB and a downstream PDB (packet delay budget).

As a sub-embodiment of this embodiment, the sum of the upstream PDB and the downstream PDB is the interactive backhaul delay.

As one embodiment, the first QoS information includes: gesture-to-response time interval or delay.

As one embodiment, the first QoS information includes: time delay requirements.

As one embodiment, the first QoS information includes: delay jitter (jitter).

As one embodiment, the first QoS information includes: response time.

As an embodiment, the first QoS information is sent through an RRC message.

As an embodiment, the first QoS information is sent by NAS message.

As an embodiment, the first QoS information is received at session establishment for an interactive service.

As an embodiment, the first QoS information changes periodically.

As one embodiment, the first QoS information varies according to QoS requirements or characteristics of the PDU set.

As one embodiment, the network indicates the first QoS information by an index of the first QoS information.

For one embodiment, the phrase receives the meaning of the first QoS information is: an index of the first QoS information is received and the first QoS information is determined from the first QoS information index.

As a sub-embodiment of this embodiment, the index of the first QoS information is an index in a QoS list or table.

As a sub-embodiment of this embodiment, the QoS list or table is predefined.

As a sub-embodiment of this embodiment, the QoS list or table is network configured.

As one embodiment, the meaning of the phrase of the first QoS information for the interactive service includes: the service for which the first QoS information is intended is an interactive service.

As one embodiment, the meaning of the phrase of the first QoS information for the interactive service includes: the service to which the first QoS information is applicable is an interactive service.

As one embodiment, the meaning of the phrase of the first QoS information for the interactive service includes: the first QoS information includes parameters or QoS information related to the interactive service.

As one embodiment, the meaning of the phrase of the first QoS information for the interactive service includes: the first QoS information includes QoS parameters specific to the interactive service.

As one embodiment, the meaning of the phrase of the first QoS information for the interactive service includes: the first QoS information is for XR traffic.

As one embodiment, the meaning of the phrase of the first QoS information for the interactive service includes: the first QoS information is for VR or AR or CG traffic.

As an embodiment, the first message is control information of a MAC layer.

As an embodiment, the meaning that the phrase that the first message is Control information of the MAC layer includes that the first message is a MAC CE (Control element).

As an embodiment, the meaning that the phrase said first message is control information of the MAC layer includes that said first message is a MAC subheader.

As an embodiment, the meaning that the phrase that the first message is control information of the MAC layer includes that the first message does not contain PDUs generated by protocol layers above the MAC layer.

As one embodiment, the meaning that the phrase the first message is control information of the MAC layer includes: all bits of the first message are generated at the MAC layer.

As an embodiment, the first message is the control information of the MAC layer, which has the advantages that compared with the RRC message, the control information of the MAC layer is faster, the message is smaller, the resource is saved, the feedback message such as the RRC message is not needed to be waited, the first message and the uplink data can be multiplexed together conveniently, compared with the RRC message, the trigger mechanism and the flow are different, and the use of the RRC message is not feasible for the service with strict requirements on time delay.

As an embodiment, the first message is sent over an uplink.

As an embodiment, the first message comprises at least one field.

As an embodiment, the first message comprises at least four fields.

As one embodiment, the first time window comprises X milliseconds, where X is a positive integer.

As an embodiment, the first time window includes Y time slots, where Y is a positive integer.

As a sub-embodiment of this embodiment, a slot has a length of 0.5 milliseconds.

As a sub-embodiment of this embodiment, one slot is 14 OFDM symbols in length.

As a sub-embodiment of this embodiment, one slot is 7 OFDM symbols in length.

As a sub-embodiment of this embodiment, one slot has a length of 1 subframe.

As a sub-embodiment of this embodiment, one slot is 1 frame in length.

As an embodiment, the first time window comprises Z time units, wherein Z is a positive integer.

As a sub-embodiment of this embodiment, the time units are configured by RRC messages.

As an embodiment, the length of the first time window does not exceed an expiration value of an duration timer of the target DRX group.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: the first field of the first message indicates a duration of the first time window.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: the first field of the first message indicates a start time of the first time window.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: the first field of the first message indicates an end time of the first time window.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: the first field of the first message includes the first time offset.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: the first field of the first message includes an index of the first time window.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: the first field of the first message includes a sequence number of the first time window.

As one embodiment, the meaning of the first field indicating a first time window of the phrase the first message comprises: one bit of the first field of the first message indicates the presence of the first time window, the start time and duration of which are predefined or preconfigured.

As one embodiment, the first QoS information includes a first time parameter that is used to determine a first time length that is a duration of the first time window.

As a sub-embodiment of this embodiment, the first time parameter comprises a delay jitter.

As a sub-embodiment of this embodiment, the first time parameter comprises an uncertainty of the arrival time.

As a sub-embodiment of this embodiment, the first time parameter comprises a confidence interval of the arrival time.

As an embodiment, the target DRX group is one of the first DRX group or the second DRX group.

As an embodiment, the target DRX group is a DRX group other than the first DRX group, wherein the first node is not configured with SCGs.

As an embodiment, the target DRX group is a DRX group other than the first DRX group and the second DRX group.

As an embodiment, the first node is configured with only one DRX group, i.e. the target DRX group.

As an embodiment, the first node does not need to monitor PDCCH at times other than the active time of the target DRX group.

As an embodiment, the first node does not need to enter a sleep state at a time other than the active time of the target DRX group.

As one embodiment, the act of listening to the PDCCH (physical downlink control channel ) includes blind decoding on the PDCCH's resources.

As one embodiment, the act of listening to the PDCCH (physical downlink control channel ) includes attempting to receive relevant control information on the PDCCH.

As one embodiment, the act of listening to the PDCCH (physical downlink control channel ) includes attempting to detect the DCI (downlink control information ).

As one embodiment, the act of listening to the PDCCH (physical downlink control channel ) includes attempting reception over a search space.

As an embodiment, the act of listening to the PDCCH (physical downlink control channel ) includes attempting decoding over a search space, during which decoding is successful if the CRC check passes and unsuccessful if the CRC check does not pass, i.e. no useful information is received.

As an embodiment, the act of listening to the PDCCH (physical downlink control channel ) includes measuring the resources of the PDCCH, attempting to receive or blindly decode the PDCCH when the measurement reaches a certain threshold.

As an embodiment, the meaning that the active time of the target DRX group includes the first time window includes: the active time of the target DRX includes all times of the first time window.

As an embodiment, the meaning that the duration of the first time window is limited includes: the duration of the first time window does not exceed T time units.

As an embodiment, the meaning that the duration of the first time window is limited includes: a possible upper limit of the duration of the first time window does not exceed T time units.

As an embodiment, the meaning that the duration of the first time window is limited includes: if no DCI is detected within the T time after the first time window starts, the first time window ends.

As a sub-embodiment of this embodiment, the DCI detected is for the first node.

As a sub-embodiment of this embodiment, the DCI detected is for a C-RNTI of the first node.

As an embodiment, the meaning that the duration of the first time window is limited includes: if DCI is detected after the first time window starts, the first time window ends.

As a sub-embodiment of this embodiment, the DCI detected is for the first node.

As an embodiment, the first time offset is in seconds or milliseconds.

As one embodiment, the first time offset is in X milliseconds, where X is a real number.

As an embodiment, the unit of the first time offset is a subframe.

As an embodiment, the unit of the first time offset is a time slot.

As an embodiment, the unit of the first time offset is N OFDM symbols.

As an embodiment, the unit of the first time offset is the same as the unit of the time-related parameter included in the first QoS information.

As an embodiment, the unit of the first time offset is different from the unit of the time-related parameter included in the first QoS information.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset after the transmission of the first message is the beginning of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time instant determined by the first time offset after receipt of the first message is the start of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset after the start of the current DRX cycle is the start of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset after the start of the next DRX cycle is the start of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset after expiration of the duration timer of the next DRX cycle is the beginning of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset after the X-th DRX cycle after the current DRX cycle is the beginning of the first time window.

As a sub-embodiment of this embodiment, the X is configured by RRC message.

As a sub-embodiment of this embodiment, the first QoS information is used to determine that the X is included.

As a sub-embodiment of this embodiment, X is a positive integer, the 1 st DRX cycle after the current DRX cycle is the next DRX cycle, the 2 nd DRX cycle after the current DRX cycle is the next DRX cycle, and so on.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the first message includes a system frame number, and the time determined by the first time offset after the system frame number is the beginning of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the first message includes a system frame number and a subframe number, and a time determined by a first time offset after a time determined by the system frame number and the subframe number is a start of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset after the first transmission of the first message is the beginning of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time instant determined by the first time offset of the time domain resource occupied by the first message is the beginning of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the time determined by the first time offset of the time domain resource occupied by the first transmission of the first message is the beginning of the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant of time determined by the first time offset after the transmission of the first message is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant of time determined by the first time offset after receipt of the first message is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the moment determined by the first time offset after the start of the current DRX cycle is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the moment determined by the first time offset after the start of the next DRX cycle is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the moment determined by the first time offset after expiration of the duration timer of the next DRX cycle is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant determined by the first time offset after the X-th DRX cycle after the current DRX cycle is the first time window.

As a sub-embodiment of this embodiment, the X is configured by RRC message.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant of time determined by the first time offset after the system frame number included in the first message includes the system frame number is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant of time determined by the first time offset after the time determined by the system frame number and the subframe number included in the first message includes the system frame number and the subframe number is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant of time determined by the first time offset after the first transmission of the first message is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant determined by the first time offset of the time domain resource occupied by the first message is the first time window.

As one embodiment, the meaning of the start time of the first time window in relation to the first time offset of a sentence comprises: the most recent candidate time window after the instant determined by the first time offset of the time domain resource occupied by the first transmission of the first message is the first time window.

As an embodiment, the candidate time window is configured by RRC message.

As an embodiment, the candidate time window is requested or indicated by an RRC message.

As an embodiment, the first message comprises the first time offset.

As an embodiment, the first message explicitly indicates the DRX cycle for which the first time window is intended.

As an embodiment, the first QoS information is for a first service.

As a sub-embodiment of this embodiment, the first service is an interactive service.

As a sub-embodiment of this embodiment, the first service is an XR service.

As a sub-embodiment of this embodiment, the first traffic is VR traffic.

As a sub-embodiment of this embodiment, the first service is an AR service.

As a sub-embodiment of this embodiment, the first service is a cloud game service.

As an embodiment, a first DRX timer is in an active state when the first message is sent, the first DRX timer being one of an duration, an activity or a retransmission timer, the expected expiration of the first DRX timer being earlier than the first time window; the second DRX timer is in a stopped state when the first message is sent; the second DRX timer is an duration timer, an expected starting time of which is later than the first time window.

As an embodiment, the first DRX timer is for the target DRX group.

As an embodiment, the second DRX timer is for the target DRX group.

As an embodiment, the expected expiration time of the first DRX timer is a time determined by an expiration value after the start of the first DRX timer.

As an embodiment, the first DRX timer is an expected expiration time in case the first DRX timer is not stopped or restarted after starting.

As an embodiment, the start of the DRX duration timer is even the start of one DRX cycle.

As one embodiment, the DRX's duration timer starts periodically.

As an embodiment, an duration timer for DRX is started whenever the sum of 10 of the SFN frame numbers and the subframe number, the modulus value for one time length, equals the modulus value for said one time length for a certain offset.

As a sub-embodiment of this embodiment, the one time length is a period of DRX.

As a sub-embodiment of this embodiment, the one particular offset is configured by RRC signaling.

As a sub-embodiment of this embodiment, the one particular offset is predefined.

As an embodiment, the DRX onduration timer is started every time the sum of ten times the SFN frame number and the subframe number, the modulus value for a length of time is equal to a determined offset.

As a sub-embodiment of this embodiment, the one time length is a period of DRX.

As a sub-embodiment of this embodiment, the determined offset is configured by RRC signaling.

As a sub-embodiment of this embodiment, the determined offset is predefined.

As an embodiment, the first node is configured with only a long DRX cycle.

As an embodiment, the active time of the target DRX group includes a run time of the first timer.

As an embodiment, the duration timer, the inactivity timer, and the retransmission timer of the DRX of the target DRX group run time.

As an embodiment, the first DRX timer and the second DRX timer are the same timer.

As an embodiment, the first DRX timer and the second DRX timer are not the same timer.

As one embodiment, when the first node listens to the PDCCH during the duration of the DRX, the PDCCH indicates a downlink transmission, then the downlink transmission is received and a HARQ related timer of the DRX is started, when the HARQ related timer expires and the first node fails to correctly receive the downlink transmission, a retransmission timer of the DRX is started and a retransmission timer of the DRX is run to attempt to receive retransmissions.

As an embodiment, when the first node listens to the PDCCH during the duration of DRX, the PDCCH indicates a new transmission, and an inactivity timer of DRX is started.

As a sub-embodiment of this embodiment, the UE may enter sleep mode when the inactivity timer for DRX expires, i.e. indicating that there has been no new transmission for a period of time.

As an embodiment, the phrase that the expected expiration time of the first DRX timer is earlier than the first time window means that: the expected expiration of the first DRX timer is earlier than the start of the first time window.

As an embodiment, the phrase that the expected expiration time of the first DRX timer is earlier than the first time window means that: the expected expiration of the first DRX timer is earlier than the end of the first time window.

As an embodiment, the phrase that the expected starting time of the second DRX timer is later than the first time window means that: the expected starting instant of the second DRX timer is later than the start of the first time window.

As an embodiment, the phrase that the expected starting time of the second DRX timer is later than the first time window means that: the expected start time of the second DRX timer is later than the end of the first time window.

As an embodiment, the above method has the advantage that the signaling overhead can be reduced by sending the first message only when the expected DRX timer for determining the active time of the target DRX group is not in operation.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5 GSystem)/EPS (Evolved Packet System ) 200, or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

As an embodiment, the first node in the present application is UE201.

As an embodiment, the base station of the second node in the present application is the gNB203.

As an embodiment, the radio link from the UE201 to the NR node B is an uplink.

As an embodiment, the radio link from the NR node B to the UE201 is a downlink.

As an embodiment, the UE201 supports relay transmission.

As an embodiment, the UE201 includes a mobile phone.

As one example, the UE201 is a vehicle including an automobile.

As an embodiment, the UE201 supports sidelink transmission.

As an embodiment, the UE201 supports MBS transmissions.

As an embodiment, the UE201 supports MBMS transmission.

As an embodiment, the gNB203 is a macro cell (marcocelluar) base station.

As one example, the gNB203 is a Micro Cell (Micro Cell) base station.

As an embodiment, the gNB203 is a PicoCell (PicoCell) base station.

As an embodiment, the gNB203 is a flying platform device.

As one embodiment, the gNB203 is a satellite device.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first node (UE, satellite or aerial in gNB or NTN) and a second node (gNB, satellite or aerial in UE or NTN), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the links between the first node and the second node and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering the data packets and handover support for the first node between second nodes. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The PC5-S (PC 5Signaling Protocol ) sublayer 307 is responsible for the processing of the signaling protocol of the PC5 interface. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first node and the second node in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. SRBs can be regarded as services or interfaces provided by the PDCP layer to higher layers, e.g., RRC layer. In the NR system, SRBs include SRB1, SRB2, and SRB3, and also SRB4 when the sidelink communication is involved, which are used to transmit different types of control signaling, respectively. SRB is a bearer between the UE and the access network for transmitting control signaling including RRC signaling between the UE and the access network. SRB1 is of particular interest for UEs, where after each UE establishes an RRC connection, there is SRB1 for transmitting RRC signaling, most of the signaling is transmitted through SRB1, and if SRB1 is interrupted or unavailable, the UE must perform RRC reestablishment. SRB2 is typically used only for transmitting NAS signaling or security related signaling. The UE may not configure SRB3. In addition to emergency services, the UE must establish an RRC connection with the network for subsequent communications. Although not shown, the first node may have several upper layers above the L2 layer 355. Further included are a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.). For UEs involving relay services, its control plane may also include an adaptation sublayer SRAP (Sidelink Relay Adaptation Protocol, sidelink relay adaptation may be possible) 308, and its user plane may also include an adaptation sublayer SRAP358, the introduction of which may facilitate multiplexing and/or distinguishing data from multiple source UEs by lower layers, such as the MAC layer, e.g., the RLC layer. For nodes not involved in relay communications, PC5-S307, SRAP308, SRAP358 are not required in the course of the communication.

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.

As an embodiment, the first QoS information in the present application is generated in the RRC306 or NAS layer.

As an embodiment, the first message in the present application is generated in MAC302.

As an embodiment, the second message in the present application is generated in RRC306 or NAS layer.

As an embodiment, the third message in the present application is generated in RRC306 or NAS layer.

As an embodiment, the fourth message in the present application is generated in RRC306.

As an embodiment, the fifth message in the present application is generated in RRC306 or NAS layer.

As an embodiment, the sixth message in the present application is generated in RRC306.

As an embodiment, the seventh message in the present application is generated in RRC306.

As an embodiment, the first DCI in the present application is generated in PHY301.

As an embodiment, the first data block in the present application is generated in PHY351 or MAC352 or RLC353 or PDCP354 or SDAP356 or NAS.

As an embodiment, the first signal in the present application is generated in the PHY301.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

The first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, and optionally a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, and optionally a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

In the transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 (Layer-2) Layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.

In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: receiving first QoS information, wherein the first QoS information aims at interactive service; the first QoS information is used to determine a first time offset; transmitting a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window; monitoring PDCCH at the active time of the target DRX group; wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving first QoS information, wherein the first QoS information aims at interactive service; the first QoS information is used to determine a first time offset; transmitting a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window; monitoring PDCCH at the active time of the target DRX group; wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the second communication device 410 to at least: transmitting first QoS information, wherein the first QoS information aims at interactive service; the first QoS information is used to determine a first time offset; receiving a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window; the receiver of the first message monitors PDCCH at the active time of the target DRX group; wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As one embodiment, the second communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting first QoS information, wherein the first QoS information aims at interactive service; the first QoS information is used to determine a first time offset; receiving a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window; the receiver of the first message monitors PDCCH at the active time of the target DRX group; wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 is a UE.

As an embodiment, the first communication device 450 is an in-vehicle terminal.

As an embodiment, the second communication device 450 is a relay.

As an example, the second communication device 410 is a satellite.

As an example, the second communication device 410 is an aircraft.

As an embodiment, the second communication device 410 is a base station.

As an example, a receiver 454 (including an antenna 452), a receive processor 456 and a controller/processor 459 are used in the present application to receive the first QoS information.

As an example, a receiver 454 (including an antenna 452), a receive processor 456 and a controller/processor 459 are used in the present application to receive the fourth message.

As an example, a receiver 454 (including an antenna 452), a receive processor 456 and a controller/processor 459 are used in the present application to receive the sixth message.

As an example, a receiver 454 (including an antenna 452), a receive processor 456 and a controller/processor 459 are used in the present application to receive the seventh message.

As an example, a receiver 454 (including an antenna 452), a receive processor 456 and a controller/processor 459 are used in the present application to receive the first data block.

As an example, a receiver 454 (including an antenna 452), a receive processor 456 and a controller/processor 459 are used in the present application to receive the first signal.

As one example, a transmitter 454 (including an antenna 452), a transmit processor 468 and a controller/processor 459 are used in the present application to transmit the second message.

As one example, a transmitter 454 (including an antenna 452), a transmit processor 468 and a controller/processor 459 are used in the present application to transmit the third message.

As one example, a transmitter 454 (including an antenna 452), a transmit processor 468 and a controller/processor 459 are used in the present application to transmit the fifth message.

As one example, transmitter 418 (including antenna 420), transmit processor 416 and controller/processor 475 are used in the present application to transmit the first QoS information.

As an example, transmitter 418 (including antenna 420), transmit processor 416 and controller/processor 475 are used in the present application to transmit the fourth message.

As an example, transmitter 418 (including antenna 420), transmit processor 416 and controller/processor 475 are used in the present application to transmit the sixth message.

As one example, transmitter 418 (including antenna 420), transmit processor 416 and controller/processor 475 are used in the present application to transmit the fourth seven message.

As an example, transmitter 418 (including antenna 420), transmit processor 416 and controller/processor 475 are used to transmit the first data block in the present application.

As one example, a transmitter 418 (including an antenna 420), a transmit processor 416 and a controller/processor 475 are used in the present application to transmit the first signal.

As an example, receiver 418 (including antenna 420), receive processor 470 and controller/processor 475 are used in the present application to receive the second message.

As an example, receiver 418 (including antenna 420), receive processor 470 and controller/processor 475 are used in the present application to receive the third message.

As an example, receiver 418 (including antenna 420), receive processor 470 and controller/processor 475 are used in the present application to receive the fifth message.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the application, as shown in fig. 5. In fig. 5, U01 corresponds to a first node of the present application, U02 corresponds to a second node of the present application, and it is specifically illustrated that the order in this example is not limited to the order of signal transmission and implementation in the present application, where steps within F51 and F52 are optional.

For the followingFirst node U01Received in step S5101First QoS information; transmitting a second message in step S5102; transmitting a third message in step S5103; receiving a fourth message in step S5104; receiving a seventh message in step S5105; transmitting a fifth message in step S5106; receiving a sixth message in step S5107; transmitting a first message in step S5108; receiving a first DCI in step S5109; the first data block is received in step S5110.

For the followingSecond node U02Transmitting the first QoS information in step S5201; receiving a second message in step S5202; receiving a third message in step S5203; transmitting a fourth message in step S5204; transmitting a seventh message in step S5205; receiving a fifth message in step S5206; transmitting a sixth message in step S5207; receiving a first message in step S5208; transmitting a first DCI in step S5209; the first data block is transmitted in step S5210.

In embodiment 5, the first QoS information is for an interactive service; the first QoS information is used to determine a first time offset; the first message includes at least a first field, the first field of the first message indicating a first time window; the first node U01 monitors PDCCH at the active time of the target DRX group; the active time of the target DRX group includes the first time window; the duration of the first time window is limited, the start time of the first time window being related to the first time offset; the first message is control information of a MAC layer.

As an embodiment, the first node U01 is a UE, and the second node U02 is a serving cell or a cell group of the first node U01.

As an embodiment, the first node U01 is a UE, and the second node U02 is a base station serving the first node U01.

As an embodiment, the first node U01 sends the first message via an uplink.

As an embodiment, step S5102 is performed before step S5108.

As one embodiment, the second message includes at least the former of the first set of time offsets and a first length of time.

As one embodiment, the first message includes an index of the first time offset in the first set of time offsets.

As an embodiment, the duration of the first time window is the first time length.

As an embodiment, the second message is an RRC message.

As an embodiment, the second message is a MAC CE.

As an embodiment, the second message comprises ueassistance information.

As one embodiment, the first set of time offsets includes at least the first time offset.

As an embodiment, the unit of any time offset included in the first set of time offsets is time or may be converted into units of time.

As an embodiment, the second message comprises the first time length.

As an embodiment, the second message comprises a first set of time lengths, the first time length belonging to the first set of time lengths.

As an embodiment, the first message comprises an index of the first time length in the first set of time lengths.

As an embodiment, the first time length is indicated or configured by a serving cell of the first node.

As an embodiment, the first set of time lengths is configured by a serving cell of the first node.

As an embodiment, the first time length is one time slot.

As an embodiment, the first time length is one subframe.

As an embodiment, step S5103 is performed before step S5108.

As an embodiment, the third message indicates a first set of time windows.

As an embodiment, the first set of time windows comprises the first time window.

As an embodiment, the meaning of the first field of the sentence first message indicating the first time window is: the first message includes an index of the first time window in the first set of time windows.

As an embodiment, the third message is an RRC message.

As an embodiment, the third message includes ueassistance information.

As an embodiment, the first set of time windows comprises at least one time window.

As an embodiment, the first set of time windows comprises less than 64 time windows.

As an embodiment, the first set of time windows comprises more than 1 time window.

As one embodiment, the first message indicates the first time window by indicating an index of the first time window in the first set of time windows.

As one embodiment, the first message explicitly indicates an index of the first time window in the first set of time windows.

As an embodiment, the first message indicates the index of the first time window in the first set of time windows by means of a bit map.

As a sub-embodiment of this embodiment, one bit of the one bit map is used to indicate the first time window.

As an embodiment, the first message indicates which time windows of the first set of time windows belong to the active time of the target DRX group by means of a bit map.

As an embodiment, step S5104 is performed before step S5108.

As an example, steps S5102, S5103, S5104 are not present at the same time.

As an embodiment, one of steps S5102, S5103, S5104 is used.

As an embodiment, the fourth message indicates a second set of time windows.

As an embodiment, the fourth message comprises an RRC message.

As an embodiment, the fourth message includes rrcrecon configuration.

As an embodiment, the first time window is one time window of the second set of time windows.

As an embodiment, the meaning of the first field of the sentence first message indicating the first time window is: the first message includes an index of the first time window in the second set of time windows.

As one embodiment, the first set of time windows is used to determine the second set of time windows.

As an embodiment, the second set of time windows is the same set as the first time window.

As one embodiment, the first message includes an index of the first time window in the first set of time windows.

As an embodiment, the first message comprises a bit map, one bit of the first bit map being used to indicate the index of the first time window in the first set of time windows.

As an embodiment, the first message comprises a bit map, one bit of the first bit map being used to indicate the first time window in the first set of time windows.

As an embodiment, the number of bits of the one bit map included in the first message is equal to the number of time windows included in the first set of time windows.

As an embodiment, the number of bits of the one bit map included in the first message is equal to the number of time windows included in the second set of time windows.

As an embodiment, the number of bits of the one bit map included in the first message is equal to an upper limit of a number of time windows that the first set of time windows may include.

As an embodiment, the number of bits of the one bit map included in the first message is equal to an upper limit of the number of time windows that the second set of time windows may include.

As an embodiment, the fourth message is a response to the third message.

As an embodiment, the fifth message indicates that the type of the first node is helmet-related.

As an embodiment, the fifth message comprises a capability of the first node, the capability of the first node being specific to a helmet.

As an embodiment, the fifth message comprises a capability of the first node, the capability of the first node comprising that the type of the first node is a helmet.

As an embodiment, the phrase that the fifth message indicates a helmet-related meaning of the type of the first node includes: the fifth message indicates that traffic received by the first node is for the left and right eyes.

As an embodiment, the phrase that the fifth message indicates a helmet-related meaning of the type of the first node includes: the fifth message indicates that the first node is a VR, AR or CG device.

As an embodiment, the phrase that the fifth message indicates a helmet-related meaning of the type of the first node includes: the fifth message indicates that the first node is a head-mounted device.

As an embodiment, the sixth message is used to configure the first message.

As an embodiment, the sixth message is an RRC message.

As an embodiment, the sixth message includes rrcrecon configuration.

As an embodiment, the fifth message triggers the sixth message.

As an embodiment, the fifth message is used to request the sixth message.

As an embodiment, the fifth message is used to request to send the first message.

As an embodiment, the sixth message indicates that the first message is activated.

As an embodiment, the sixth message indicates that the first message is enabled.

As an embodiment, the meaning of the phrase that the sixth message is used to configure the at least one parameter of the first message includes: the sixth message indicates a logical channel identity used by the first message.

As an embodiment, the meaning of the phrase that the sixth message is used to configure the at least one parameter of the first message includes: the sixth message indicates the resources used by the first message.

As an embodiment, the meaning of the phrase that the sixth message is used to configure the at least one parameter of the first message includes: the sixth message indicates an opportunity for the first message to be sent.

As an embodiment, the meaning of the phrase that the sixth message is used to configure the at least one parameter of the first message includes: the sixth message indicates an expiration value of a timer associated with the first message.

As an embodiment, the meaning of the phrase that the sixth message is used to configure the at least one parameter of the first message includes: the sixth message indicates an expiration value of a timer that prohibits sending the first message.

As an embodiment, the first message and the uplink MAC SDU are multiplexed in one MAC PDU, and the MAC SDU includes an RLC PDU.

As an embodiment, the first message is not sent over a sidelink.

As an embodiment, the first message comprises 8 bits.

As an embodiment, the first message comprises 16 bits.

As an embodiment, the first message is for the target DRX group.

As an embodiment, the first message is directed to a MAC entity corresponding to the target DRX group.

As an embodiment, the first DCI is transmitted on a PDCCH.

As an embodiment, the first DCI is received within the first time window after the first message is transmitted.

As an embodiment, the first DCI indicates time-frequency resources occupied by the first data block.

As one embodiment, the first DCI is physical layer control information.

As an embodiment, the first DCI and the first data block are transmitted simultaneously.

As an embodiment, the first DCI is transmitted earlier than the first data block.

As an embodiment, the first data block comprises one TB.

As an embodiment, the first data block comprises a MAC PDU.

As an embodiment, the first data block includes data of a service for which the first QoS information is intended.

As an embodiment, the first data block includes data of a QoS flow for which the first QoS information is intended.

As an embodiment, the first data block includes data of a PDU set for which the first QoS information is intended.

As an embodiment, the PDU of the interactive service is a PDU carrying the interactive service.

As an embodiment, the seventh message comprises a first set of parameters of the target DRX group, the first set of parameters of the target DRX group being used to determine a second time window, the second time window being independent of the first message; the active time of the target DRX group includes the second time window; the duration of the second time window depends on the operating state of the target DRX timer.

As a sub-embodiment of this embodiment, the second time window includes a time when an duration timer of the target DRX group is running.

As a sub-embodiment of this embodiment, the start of the second time window is related to only the system frame and the sub-frame.

As a sub-embodiment of this embodiment, the phrase that the second time window is independent of the first message includes that the beginning of the second time window is independent of whether the first message is sent.

As a sub-embodiment of this embodiment, the phrase that the second time window is independent of the first message means that the beginning of the second time window is independent of the content of the first message.

As a sub-embodiment of this embodiment, the target DRX timer is a DRX onduration timer of the target DRX group.

As a sub-embodiment of this embodiment, the second time window includes a time when the target DRX timer is running.

As a sub-embodiment of this embodiment, the first set of parameters of the target DRX group comprises at least one parameter.

As a sub-embodiment of this embodiment, the first set of parameters of the target DRX group includes a first start offset and a first time length, and the second time window starts when a modulus value for the first time length is equal to the first start offset, the sum of 10 times the system frame number and the subframe number.

As an embodiment, the seventh message is an RRC message.

As an embodiment, the seventh message includes rrcrecon configuration.

Implementation of the embodimentsExample 6

Embodiment 6 illustrates a schematic diagram of a first time window according to one embodiment of the application, as shown in fig. 6.

In fig. 6, T0, T1, …, T6, T7 are respectively different time instants, where the duration timer of the target DRX group starts at time instant T1, the start and end time instants of the first time window are respectively T5 and T6, the sending time instant of the first message is one of time instants T0, T1, T2, T3, T4, time instant T5 is later than the sending time instant of the first message, time instant T0 in fig. 6 is earlier than time instant T1, time instant T1 is earlier than time instant T2, time instant T2 is earlier than time instant T3, time instant T3 is earlier than time instant T4, time instant T5 is earlier than time instant T6, and time instant T6 is earlier than time instant T7.

As an example, time T5 in fig. 6 is later than time T4.

As an embodiment, the time T5 in fig. 6 is not necessarily related to the time T1, T2, T3, T4, as long as the time T5 is later than the sending time of the first message.

As an embodiment, the first message is sent at time T0, and the first time offset is a time from T0 to T5.

As an embodiment, the first message is sent at time T1, and the first time offset is the time from T1 to T5.

As an embodiment, the first message is sent at time T2, and the first time offset is the time from T2 to T5.

As an embodiment, the first message is sent at time T3, and the first time offset is a time from T3 to T5.

As an example, time T5 in fig. 6 is later than time T1, but earlier than time T3.

As an example, time T5 in fig. 6 is later than time T3.

As an embodiment, the next DRX cycle starts from time T7.

As an embodiment, at the beginning of the first time window, the duration timer of the target DRX group is in a stopped state.

As an embodiment, at the beginning of the first time window, the inactivity timer of the target DRX group is in a stopped state.

As an embodiment, at the beginning of the first time window, the inactivity timer of the target DRX group may be in an active state or a inactive state.

As an embodiment, the inactivity timer of the target DRX group may be in an active state or a inactive state during the first time window.

As an embodiment, the next operation of the onduration timer of the target DRX group starts at time T7.

As an embodiment, at the end of the first time window, the duration timer of the target DRX group is in a stopped state.

As an embodiment, in the first time window, the duration timer of the target DRX group is in a stopped state.

As an embodiment, whether the onduration timer of the target DRX group is in operation is independent of the first time window.

As an embodiment, the first time window is independent of whether an onduration timer of the target DRX group is in operation.

As an embodiment, the first message indicates a time T5.

As an embodiment, the first message indicates a starting instant of the first time window.

As one embodiment, the first message indicates the first time offset.

As an embodiment, the first message is sent during the active time of the target DRX group.

As an embodiment, the sending time of the first message is independent of whether it is at the active time of the target DRX group.

As an embodiment, the first message is sent only when the first time window does not include the time when the onduration timer of the target DRX group is running.

As one embodiment, the first message is sent only when the first time window does not include a time when an duration timer of the target DRX group runs for at least M time units, where M is a non-0 real number.

As an embodiment, the first message is sent only when the duration timer of the target DRX group is not running.

As an embodiment, the length of the first time window is shorter than the expiration value of the duration timer of the target DRX group.

As an embodiment, the length of the first time window is shorter than an expiration value of an inactivity timer of the target DRX group.

As an embodiment, the length of the first time window is equal to an expiration value of an inactivity timer of the target DRX group.

As one embodiment, the length of the first time window is related to whether DCI for the first node is received within the first time window, and when DCI for the first node is received within the first time window, the length of the first time window is a first time length; when the DCI aiming at the first node cannot be received in the first time window, the length of the first time window is a second time length; the second length of time is greater than the first length of time.

As an embodiment, the act of listening to the PDCCH at an active time of the DRX group includes receiving a first DCI indicating a downlink transmission, the first node starting an activity timer for the target DRX group in response to receiving the first DCI.

As an embodiment, the act of listening to the PDCCH at an active time of the DRX group includes receiving a first DCI, the first DCI indicating a downlink transmission, the receiving of the first DCI not triggering the first node to start an inactivity timer for the target DRX group.

Example 7

Embodiment 7 illustrates a schematic diagram of a first time window according to one embodiment of the application, as shown in fig. 7.

Example 7 is based on example 6, and the parts of example 7 that are needed but not described can be seen in example 6.

Fig. 7 is divided into two parts, the upper part is a downlink time axis, and the lower part is an uplink time axis.

As an embodiment, the onduration timer of the target DRX group starts to run once at time T1 and time T7, respectively.

As an embodiment, the expiration time of the onduration timer of the target DRX group is the T3 time.

As an embodiment, the duration timer of the target DRX group may also start running once before the T1 time or after the T7 time.

As an example, the time between T1 to T7 in fig. 7 is equal to the length of the DRX cycle of the target DRX group.

As an example, each rectangular frame of the uplink part of fig. 7 is a transmission timing of uplink data.

As a sub-embodiment of this embodiment, the transmission timings of any two adjacent uplink data are equally spaced.

As a sub-embodiment of this embodiment, there is uplink data transmission at the transmission timing of each of the uplink data.

As a sub-embodiment of this embodiment, only a part of the transmission timings of the uplink data has uplink data transmission.

As a sub-embodiment of this embodiment, the transmission timing of each of the uplink data is a time window.

As a sub-embodiment of this embodiment, the transmission opportunities of the uplink data in fig. 7 are orthogonal in the time domain.

As a sub-embodiment of this embodiment, the transmission timing of each of the uplink data belongs to a configured grant.

As an example, in fig. 7, the uplink transmission includes at least two types of information, one is a first type of information and one is a second type of information, where the second type of information is an action or motion generated by a user, and the generated action and motion is strong enough to trigger downlink feedback, where the downlink feedback refers to: but are not limited to, changes in the picture, switching of scenes, changes in the field of view, auxiliary hardware devices such as the behavior of a gamepad or chair, etc.; therefore, the action of the user is sent to the XR server, and the feedback of the downlink is necessarily or highly likely triggered at a certain time delay or response time, namely from the action to a certain moment in the first time window, namely the user can expect the generation of the feedback of the downlink in the first time window; the first type of information in fig. 7 includes little or no maintenance or transmission of upstream action, and therefore it is expected that no downstream feedback will occur; since the generation of the action is random, the start of the first time window depends on the generation of the action and cannot be preconfigured.

As an embodiment, the above method has the advantage that it does not require a significant amount of active time to be preconfigured, saving power for the interruption.

As an embodiment, the above method has the advantage of optimizing DRX of MAC, etc. according to specific actions, such as indication of application layer, such cross-layer optimization has higher efficiency and better performance; in addition, the system can also configure a longer DRX period to save more power, and can ensure the time delay of the service. This may be the case where the XR service feature is utilized.

As an example, the number of transmission opportunities labeled with the first type of information in fig. 7 is not limited, and may be more or less.

As an embodiment, the first node receives the first data block within the first time window, where the first data block is feedback for an uplink action.

As an embodiment, the interval of the second type of information sent to the first time window is the first time offset.

As an embodiment, the start of the transmission of the second type of information to the first time window, i.e. T5, is the first time offset.

As an embodiment, the integer time unit closest to the moment determined by the first time offset after transmission of the second type of information is the start of the first time window.

As an embodiment, the interval of the second type of information receiving the first time window is the first time offset.

As an embodiment, the start of the reception of the second type of information, i.e. T5, of the first time window is the first time offset.

As an embodiment, the integer time unit closest to the moment determined by the received first time offset of the second type of information is the start of the first time window.

As an embodiment, the first message is the second type of information.

Example 8

Embodiment 8 illustrates a schematic diagram of a first time window according to one embodiment of the application, as shown in fig. 8.

Example 8 is based on example 6, and reference is made to example 6 for the parts of example 8 that are needed but not illustrated.

As an embodiment, the target set of time windows in fig. 8 is the first set of time windows of the present application.

As one embodiment, the first node sends a third message indicating a first set of time windows;

wherein the first set of time windows includes the first time window.

As a sub-embodiment of this embodiment, the index of the first time window in the first set of time windows is relative to an earliest one of the first set of time windows.

As a sub-embodiment of this embodiment, the index of the first time window in the first set of time windows is relative to one time window in the first set of time windows.

As a sub-embodiment of this embodiment, the index of the first time window in the first set of time windows is relative to one time window in the first set of time windows, which is not the earliest one of the first set of time windows.

As a sub-embodiment of this embodiment, the index of the first time window in the first set of time windows is relative to one time window in the first set of time windows, the one time window in the first set of time windows being a time window other than the earliest one in the first set of time windows.

As an embodiment, the target set of time windows in fig. 8 is the second set of time windows of the present application.

As one embodiment, the first node receives a fourth message indicating a second set of time windows;

wherein the second set of time windows includes the first time window.

As a sub-embodiment of this embodiment, the index of the first time window in the second set of time windows is relative to an earliest one of the second set of time windows.

As a sub-embodiment of this embodiment, the index of the first time window in the second set of time windows is relative to one time window in the second set of time windows.

As a sub-embodiment of this embodiment, the index of the first time window in the second set of time windows is relative to one time window in the second set of time windows, which is not the earliest one of the second set of time windows.

As a sub-embodiment of this embodiment, the index of the first time window in the second set of time windows is relative to one time window in the second set of time windows, which is one time window other than the earliest one in the second set of time windows.

As an embodiment, the set of target time windows comprises a limited time window.

As an embodiment, the start of the onduration timer of the target DRX group is the start of one DRX cycle that lasts until the next start of the onduration timer of the target DRX group.

As an embodiment, all time windows comprised by the set of target time windows belong to the same DRX cycle.

As one embodiment, the set of target time windows includes an infinite time window.

As an embodiment, the time windows comprised by the set of target time windows are orthogonal in the time domain.

As an embodiment, the time intervals between any two adjacent time windows comprised by the set of target time windows are equal.

As an embodiment, the first time window is any one time window of the set of target time windows.

As one embodiment, a time window in the target time window set closest to a time determined by the first time offset after the first message is sent is the first time window.

As an embodiment, the first time window is any time window in the set of target time windows before a time determined by a first time offset after the first message is sent.

As an embodiment, the first time window is any one time window in the set of target time windows before a time instant determined by a first time offset after the first message transmission and after the first message transmission.

As an embodiment, the first time window is any time window in the set of target time windows after a time instant determined by a first time offset after the first message is sent.

As an embodiment, the first time window is any one time window in the set of target time windows after a time instant determined by a first time offset after the first message is sent and before a first specific time instant.

As a sub-embodiment of this embodiment, the first specific time is a time determined by a second time offset after the first message is sent.

As a sub-embodiment of this embodiment, the first QoS information is used to determine the second time offset.

As a sub-embodiment of this embodiment, the maximum delay requirement included in the first QoS information is used to determine the second time offset.

As an embodiment, the first time window is an nth time window after the first start time window, the first message comprising N, or comprising N-1; the first start time window belongs to the set of target time windows.

As a sub-embodiment of this embodiment, the first start time window is a time window of the set of target time windows closest to a transmission instant of the first message.

As a sub-embodiment of this embodiment, the first start time window is a time window of the set of target time windows that follows the transmission of the first message and is closest to the transmission instant of the first message.

As a sub-embodiment of this embodiment, the first start time window is a closest time window from a start time of a current DRX cycle of the target DRX group in the target set of time windows.

As a sub-embodiment of this embodiment, the first start time window is a time window of the target set of time windows that is closest to and later than a start time of a current DRX cycle of the target DRX group.

As a sub-embodiment of this embodiment, the first start time window is a closest time window from a start time of a next DRX cycle of the target DRX group in the target set of time windows.

As a sub-embodiment of this embodiment, the first start time window is a time window of the target set of time windows that is closest to and later than a start time of a next DRX cycle of the target DRX group.

Example 9

Embodiment 9 illustrates a schematic diagram of a first time window according to one embodiment of the application, as shown in fig. 9.

Example 9 is based on example 6, and the parts of example 9 that are needed but not described can be seen in example 6.

As an embodiment, the third time window is earlier than the first time window.

As an embodiment, the end time of the third time window is earlier than the start time of the first time window.

As an embodiment, the end time of the third time window is equal to the start time of the first time window.

As an embodiment, the length of the third time window is configurable.

As an embodiment, the start of the third time window depends on the first time window.

As an embodiment, the first node listens to PDCCH in the third time window; the act of listening for PDCCH before the first time window is used to determine whether to listen for PDCCH within the first time window;

as an embodiment, a third DRX timer is in a stopped state within the first time window, and the running period of the third DRX timer is used to determine the start of a DRX cycle.

As an embodiment, the sentence that the act of listening to the PDCCH before the first time window is used to determine if listening to the PDCCH within the first time window means that: monitoring the PDCCH in the first time window when the first signal is not detected on the PDCCH or the first signal is detected on the PDCCH and the first signal indicates that the PDCCH is monitored in the first time window; when a first signal is detected on the PDCCH and the first signal indicates that the PDCCH is not monitored within the first time window, the PDCCH is not monitored within the first time window.

As an embodiment, the act of listening to PDCCH in the third time window and the act of listening to PDCCH in the first time window is listening to PDCCH on the same search space configuration.

As an embodiment, the act of listening to PDCCH in the third time window and the act of listening to PDCCH in the first time window is listening to PDCCH on a different search space configuration.

As an embodiment, the active time of the target DRX group does not include the third time window.

As an embodiment, the first node receives the first signal at a Tx time, where the Tx time belongs to the third time window.

As an embodiment, the first node receives the first signal within the third time window, the first signal indicating that the PDCCH is monitored within the first time window.

As an embodiment, the first node receives the first signal within the third time window, the first signal indicating that a first time window timer is started.

As an embodiment, the start of the first time window timer means that the first time window starts.

As an embodiment, the first time window timer is not an duration timer of the target DRX group.

As an embodiment, the running period of the first time window timer is the first time window.

As an embodiment, the first node does not receive the first signal within the third time window.

As one embodiment, the first signal comprises DCI.

As one embodiment, the first signal includes DCI in a format of 2_6.

Example 10

Embodiment 10 illustrates a schematic diagram in which first QoS information is used to determine a first time offset according to an embodiment of the present application, as shown in fig. 10.

As an embodiment, the first QoS information includes a first parameter, and the first parameter included in the first QoS information has a mapping relationship with a set of QoS features.

As a sub-embodiment of this embodiment, the first parameter included in the first QoS information includes 5QI.

As one embodiment, the set of QoS features includes a resource type, a default priority, a Packet Delay Budget (PDB), a packet error rate, a default maximum data burst size (default maximum data burst volume), a default average window size (default averaging window); types of resources include GBR (Garanteed Bit Rate, guaranteed rate) and Non-GBR (Non-GBR); the default priority is identified by an integer, and the smaller the value, the higher the priority.

As one embodiment, the first QoS information includes a set of QoS features.

As one embodiment, the set of QoS features includes at least one QoS feature.

As an embodiment, the one QoS feature is one parameter related to QoS.

As one embodiment, the set of QoS features includes: and (5) interactive time delay.

As one embodiment, the set of QoS features includes: backhaul interactive latency.

As one embodiment, the set of QoS features includes: motion-to-phone latency.

As one embodiment, the set of QoS features includes: backhaul time (RTT).

As one embodiment, the set of QoS features includes: backhaul delay (round trip delay).

As one embodiment, the set of QoS features includes: maximum RTT.

As one embodiment, the set of QoS features includes: gesture to explicit time delay.

As one embodiment, the set of QoS features includes: gesture-to-render to explicit latency (post-to-render-to-photon time).

As one embodiment, the set of QoS features includes: backhaul delay for XR traffic.

As one embodiment, the set of QoS features includes: RTT of XR traffic.

As one embodiment, the set of QoS features includes: a delay interval.

As one embodiment, the set of QoS features includes: an interactive delay interval.

As one embodiment, the set of QoS features includes: minimal interactive latency.

As one embodiment, the set of QoS features includes: maximum interactive latency.

As one embodiment, the set of QoS features includes: minimum RTT.

As one embodiment, the set of QoS features includes: maximum RTT.

As one embodiment, the set of QoS features includes: minimum XR delay.

As one embodiment, the set of QoS features includes: maximum XR delay.

As an embodiment, the set of QoS features includes a parameter relating to latency that is an average value.

As an embodiment, the set of QoS features includes a minimum value of a parameter related to latency.

As an embodiment, the set of QoS features includes a parameter relating to latency that is a maximum.

As one embodiment, the set of QoS features includes: business structure.

As one embodiment, the set of QoS features includes: business models or business templates.

As one embodiment, the set of QoS features includes: an upstream PDB and a downstream PDB (packet delay budget).

As one embodiment, the set of QoS features includes: gesture-to-response time interval or delay.

As one embodiment, the set of QoS features includes: time delay requirements.

As one embodiment, the set of QoS features includes: delay jitter (jitter).

As one embodiment, the set of QoS features includes: response time.

As an embodiment, the delay related parameter included in the first QoS information is the first time offset.

As an embodiment, the parameter related to the interactive delay included in the first QoS information is the first time offset.

As an embodiment, the RTT-related parameter included in the first QoS information is the first time offset.

As an embodiment, the delay related parameter included in the first QoS information is equal to the first time offset through an approximation or rounding operation for a specific value.

As an embodiment, the parameters related to the interactive delay included in the first QoS information are equal to the first time offset through an approximation or rounding operation for a specific value.

As an embodiment, the RTT-related parameter included in the first QoS information is equal to the first time offset through an approximation or rounding operation for a specific value.

As an embodiment, the first node determines the one specific value by itself.

As an example, the one specific value is 10ms.

As an embodiment, the one specific value is one DRX cycle.

As an embodiment, the one specific value is configured by RRC signaling.

As an embodiment, the sum of the uplink PDB and the downlink PDB included in the first QoS information is the first time offset.

As an embodiment, the sum of the upstream PDB and the downstream PDB included in the first QoS information is equal to the first time offset through an approximation or rounding operation for a specific value.

As one embodiment, the first QoS information includes the first time offset.

As an embodiment, the first time offset is the maximum of two delay parameters indicated by the first QoS information.

As an embodiment, the first time offset is the minimum of two delay parameters indicated by the first QoS information.

As an embodiment, the two delay parameters are for the left eye and the right eye, respectively.

As an embodiment, the two delay parameters are respectively for two QoS flows.

As one embodiment, the first node determines the first time offset from the first QoS information according to an internal algorithm.

As one embodiment, the first QoS information includes QoS information for a plurality of QoS flows.

As one embodiment, the first QoS information includes QoS information for a plurality of PDU sets.

Example 11

Embodiment 11 illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the application; as shown in fig. 11. In fig. 11, the processing means 1100 in the first node comprises a first receiver 1101 and a first transmitter 1102. In the case of the embodiment of the present application in which the sample is a solid,

A first receiver 1101 that receives first QoS information for an interactive service; the first QoS information is used to determine a first time offset;

a first transmitter 1102 that transmits a first message comprising at least a first field, the first field of the first message indicating a first time window;

the first receiver 1101 listens to the PDCCH at the active time of the target DRX group;

As an embodiment, the first transmitter 1102 transmits a second message before the first message is transmitted, the second message including at least the first set of time offsets and a first length of time;

As an embodiment, the first transmitter 1102 transmits a third message before the first message is transmitted, the third message indicating a first set of time windows;

As an embodiment, the first receiver 1101 receives a fourth message before the first message is sent, the fourth message indicating a second set of time windows;

As an embodiment, the first transmitter 1102 transmits a fifth message indicating that the type of the first node is helmet-related;

the first receiver 1101 receives a sixth message, the sixth message being used to configure the first message;

As an embodiment, the first receiver 1101 receives a first data block;

As an embodiment, the first receiver 1101 receives a seventh message, the seventh message comprising a first set of parameters of the target DRX group, the first set of parameters of the target DRX group being used to determine a second time window, the second time window being independent of the first message; the active time of the target DRX group includes the second time window; the duration of the second time window depends on the operating state of the target DRX timer.

As an embodiment, the first receiver 1101 listens for PDCCH before the first time window; the act of listening for PDCCH before the first time window is used to determine whether to listen for PDCCH within the first time window;

The first receiver 1101 receiving a fourth message indicating a second set of time windows;

wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, and the first message is control information of a MAC layer; the first time window is one time window in the second set of time windows; the meaning of the first field of the sentence first message indicating a first time window is: the first message includes an index of the first time window in the second set of time windows.

A first transmitter 1102 that transmits a third message, the third message indicating a first set of time windows;

the first transmitter 1102 transmits a first message, the first message including at least a first field, the first field of the first message indicating a first time window;

a first receiver 1101 listening for PDCCH at active time of the target DRX group;

wherein the active time of the target DRX group includes the first time window; the duration of the first time window is limited, and the first message is control information of a MAC layer; the first time window is one time window of the first set of time windows; the meaning of the first field of the sentence first message indicating a first time window is: the first message includes an index of the first time window in the first set of time windows.

As an embodiment, the first node is a User Equipment (UE).

As an embodiment, the first node is a terminal supporting a large delay difference.

As an embodiment, the first node is a terminal supporting NTN.

As an embodiment, the first node is an aircraft or a ship.

As an embodiment, the first node is a mobile phone or a vehicle terminal.

As an embodiment, the first node is a relay UE and/or a U2N remote UE.

As an embodiment, the first node is an internet of things terminal or an industrial internet of things terminal.

As an embodiment, the first node is a device supporting low latency and high reliability transmissions.

As an embodiment, the first node is a sidelink communication node.

As an example, the first receiver 1101 includes at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, or the data source 467 in example 4.

As an example, the first transmitter 1102 may include at least one of the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, or the data source 467 of example 4.

Example 12

Embodiment 12 illustrates a block diagram of a processing arrangement for use in a second node according to one embodiment of the application; as shown in fig. 12. In fig. 12, the processing means 1200 in the second node comprises a second receiver 1202 and a second transmitter 1201. In the case of the embodiment of the present application in which the sample is a sample,

a second transmitter 1201 transmitting first QoS information for an interactive service; the first QoS information is used to determine a first time offset;

a second receiver 1202 that receives a first message, the first message comprising at least a first field, the first field of the first message indicating a first time window;

As one embodiment, the second receiver 1202 receives a second message before the first message is received, the second message including at least the first set of time offsets and a first length of time;

As an embodiment, the second receiver, 1202, before the first message is received, receives a third message, the third message indicating a first set of time windows;

As an embodiment, the second transmitter 1201 sends a fourth message before the first message is received, the fourth message indicating a second set of time windows;

As one embodiment, the second receiver 1202 receives a fifth message indicating that the type of sender of the first message is helmet-related;

The second transmitter 1201 transmits a sixth message, which is used to configure the first message;

As an embodiment, the second transmitter 1201 transmits a first DCI and a first data block;

As an embodiment, the second node is a satellite.

As an embodiment, the second node is a U2N Relay UE (user equipment).

As one embodiment, the second node is an IoT node.

As an embodiment, the second node is a wearable node.

As an embodiment, the second node is a base station.

As an embodiment, the second node is a relay.

As an embodiment, the second node is an access point.

As an embodiment, the second node is a multicast-enabled node.

As an example, the second transmitter 1201 includes at least one of the antenna 420, the transmitter 418, the transmission processor 416, the multi-antenna transmission processor 471, the controller/processor 475, and the memory 476 in example 4.

As an example, the second receiver 1202 includes at least one of the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, and the memory 476 of example 4.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The user equipment, the terminal and the UE in the present application include, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircrafts, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted communication devices, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication ) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, satellite communication devices, ship communication devices, NTN user devices and other wireless communication devices. The base station or system equipment in the present application includes, but is not limited to, wireless communication equipment such as macro cell base stations, micro cell base stations, home base stations, relay base stations, gNB (NR node B) NR node B, TRP (Transmitter Receiver Point, transmitting and receiving node), NTN base stations, satellite equipment, flight platform equipment, and the like.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. Accordingly, the presently disclosed embodiments are considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node for wireless communication, comprising:

the first receiver monitors PDCCH at the active time of the target DRX group;

2. The first node of claim 1, comprising:

The first transmitter, before the first message is transmitted, transmitting a second message comprising at least the former of the first set of time offsets and a first length of time;

3. The first node according to claim 1 or 2, comprising:

the first transmitter, before the first message is transmitted, transmitting a third message, the third message indicating a first set of time windows;

4. A first node according to any of claims 1 to 3, comprising:

the first receiver receiving a fourth message before the first message is sent, the fourth message indicating a second set of time windows;

5. The first node according to any of the claims 1 to 4, characterized in that,

a first DRX timer is in operation when the first message is sent, the first DRX timer being one of an duration, an inactivity, or a retransmission timer, an expected expiration of the first DRX timer being earlier than the first time window; the second DRX timer is in a stopped state when the first message is sent; the second DRX timer is an duration timer, an expected starting time of which is later than the first time window.

6. The first node according to any of claims 1 to 5, comprising:

the first transmitter transmitting a fifth message indicating that the type of the first node is helmet-related;

the first receiver receiving a sixth message, the sixth message being used to configure the first message;

7. The first node according to any of claims 1 to 6, comprising:

the first receiver receives a first data block;

8. The first node according to any of claims 1 to 7, comprising:

the first receiver receiving a seventh message, the seventh message comprising a first set of parameters of the target DRX group, the first set of parameters of the target DRX group being used to determine a second time window, the second time window being independent of the first message; the active time of the target DRX group includes the second time window; the duration of the second time window depends on the operating state of the target DRX timer.

9. The first node according to any of claims 1 to 8, comprising:

the first receiver monitors PDCCH before the first time window; the act of listening for PDCCH before the first time window is used to determine whether to listen for PDCCH within the first time window;

10. A second node for wireless communication, comprising:

11. A method in a first node for wireless communication, comprising:

monitoring PDCCH at the active time of the target DRX group;

12. A method in a second node for wireless communication, comprising: