CN117014123A

CN117014123A - Method and equipment for receiving and transmitting configuration information

Info

Publication number: CN117014123A
Application number: CN202211379765.1A
Authority: CN
Inventors: 汪巍崴; 王弘; 许丽香
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2022-04-27
Filing date: 2022-11-04
Publication date: 2023-11-07

Abstract

A method and apparatus in a wireless communication system is disclosed. According to one aspect of the present disclosure, there is provided a method performed by a first node in a wireless communication system, the method comprising: receiving a first message from a second node, the first message being determined based on a traffic characteristic of the first node, wherein the first message includes information related to the traffic characteristic of the first node; and transmitting and receiving data and/or signals based on the first message.

Description

Method and equipment for receiving and transmitting configuration information

Technical Field

The present application relates to wireless communication technologies, and in particular, to a method and apparatus for receiving and transmitting configuration information.

Background

In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi 5G communication systems. Therefore, a 5G or quasi 5G communication system is also referred to as a "super 4G network" or a "LTE-after-system".

Wireless communication is one of the most successful innovations in modern history. Recently, the number of subscribers to wireless communication services exceeds 50 billion and continues to grow rapidly. As smartphones and other mobile data devices (e.g., tablet computers, notebook computers, netbooks, e-book readers, and machine type devices) become increasingly popular among consumers and businesses, the demand for wireless data services is rapidly growing. To meet the high-speed growth of mobile data services and support new applications and deployments, it is important to improve the efficiency and coverage of the wireless interface.

With the progressive maturity of 5G commercial networks (NR: new Radio access networks), various emerging services based on 5G networks are also being introduced, wherein Extended Reality (XR: extended real) services are considered as a typical application of the 5G era, which includes augmented Reality (AR: augmented Reality), virtual Reality (VR: virtual real) and Mixed Reality (MR: mixed real). As is well known, the data size of XR service is large, and the requirements on delay and reliability are also high, so this puts high requirements on NR network, and research and standardization work on the XR service of 5G network service have also been developed.

Disclosure of Invention

According to one aspect of the present disclosure, there is provided a method performed by a first node in a wireless communication system, the method comprising: receiving a first message from a second node, wherein the first message is determined based on information related to traffic characteristics of the first node; and transmitting and receiving data and/or signals based on the first message.

In various embodiments, the first message includes at least one of the following information: the first numbering information is used for indicating the number of the system frame; second number information indicating system frame number information of a reference; the transmission period information is used for indicating period related information related to data and/or signal receiving and transmitting of the first node; first information for indicating configuration information related to data and/or signal transmission/reception by the first node; the third configuration information is used for indicating configuration information related to PDCCH monitoring by the first node; the first timer information is used for indicating configuration information related to a first timer, and the first timer is corresponding time or configured conversion time when the first node transmits and receives data and/or signals; second timer information for indicating configuration information related to a second timer, wherein the second timer is a configured use time corresponding to the first node when transmitting and receiving data and/or signals; discontinuous reception, DRX, configuration information indicating configuration information related to DRX by the first node.

In various embodiments, the transmission period information includes at least one of the following information: the first period information is used for indicating information related to a first period, and the first period is a period corresponding to data and/or signals carried out by the first node; first offset information indicating offset information related to the first period; second period information indicating second period-related information used in the first period; and second offset information indicating offset information related to the second period.

In various embodiments, the first information includes at least one of the following: signal monitoring configuration information for indicating configuration information related to a monitored signal; the trigger indication information is used for indicating the first node to trigger and/or start the time for receiving and transmitting the data and/or signals configured by the signal monitoring configuration information; and trigger timer information for indicating to trigger and/or start a timer related to the transmission and reception of data and/or signals configured by the signal monitoring configuration information.

In various embodiments, the third configuration information comprises a plurality of sets of configuration information, wherein each set of configuration information comprises at least one of: monitoring the starting offset time; the length of time of monitoring; and first status indication information for indicating whether the group of configurations is in an active state; and/or the third configuration information comprises second status indication information indicating whether one or more of the plurality of sets of configuration information is in an active state.

In various embodiments, the first timer information comprises a configuration of one or more length information, the first timer information comprising, for each configuration of length information, at least one of: first timer length information; first condition information indicating condition information related to the start or restart of the first timer; the step-down information is used for indicating the step-down related information of the initial length of the timer, which is set when the first timer is started or restarted, and/or the step-down of the timer when the timer is decreased; first application information for indicating information related to an application range of one or more pieces of information included in the first timer information; and third state indication information for indicating whether a configuration for the length information is in an active state; and/or the first timer information comprises fourth state indication information for indicating whether one or more sets of configuration of the sets of length information are in an active state; and/or the second timer information comprises at least one of the following: second timer length information; second applicability information indicating information related to an applicability range of one or more pieces of information included in the second timer information; and status indication information for indicating whether the second timer information is in an activated state.

In various embodiments, the DRX configuration information includes one or more sets of DRX-related configuration information, each set of DRX-related configuration information including at least one of the following information: the first configuration DRX information comprises configuration of parameters for DRX; application range information indicating an application range of the first configuration DRX information; fifth state indication information for indicating whether the group configuration is in an active state; and indication information of default configuration, which indicates whether the first configuration DRX information is the default configuration, and/or the DRX configuration information includes sixth state indication information, which indicates whether one or more of the plurality of sets of configuration information regarding DRX are in an active state.

In various embodiments, the first node receives a second message from the second node, wherein the second message includes information related to a traffic characteristic of the first node; wherein, the receiving and transmitting data and/or signals based on the first message includes: the first node transmits and receives data and/or signals based on the first message and the second message.

In various embodiments, the second message includes at least one of the following information: a first start indication information for indicating whether the first node starts a configuration related to a specific search space; the first stop indication information is used for indicating whether the first node stops receiving and transmitting data and/or signals or not; first time indication information for indicating information related to the first node starting or restarting a timer; second time indication information for indicating information related to the first node starting or restarting the plurality of timers; first configuration indication information for indicating DRX-related configuration with respect to a first node; and second configuration indication information for indicating configuration related to the PDCCH monitoring by the first node.

In one embodiment, the method further comprises: the first node transmits at least one of information related to traffic characteristics of the first node and configuration information that the first node desires to transmit and receive with respect to data and/or signals to the second node.

In various embodiments, the signals include at least one of PDCCH, wake-up signal WUS, and advanced paging indication PEI signals.

According to another aspect of the present disclosure, there is provided a node apparatus in a wireless communication system, comprising: a transceiver; and a processor coupled to the transceiver and configured to perform the above method.

According to another aspect of the present disclosure, there is provided a method performed by a second node in a wireless communication system, comprising: determining a first message based on information related to traffic characteristics of the first node; and transmitting the first message to the first node.

In various embodiments, the first message includes at least one of the following information: the transmission period information is used for indicating period related information related to data and/or signal receiving and transmitting of the first node; first information for indicating configuration information related to data and/or signal transmission/reception by the first node; the third configuration information is used for indicating configuration information related to PDCCH monitoring by the first node; the first timer information is used for indicating configuration information related to a first timer, and the first timer is corresponding time or configured conversion time when the first node transmits and receives data and/or signals; second timer information for indicating configuration information related to a second timer, wherein the second timer is a configured use time corresponding to the first node when transmitting and receiving data and/or signals; discontinuous reception, DRX, configuration information indicating configuration information related to DRX by the first node.

In a further embodiment, the method further comprises: receiving information related to service characteristics of a first node from core network equipment or user equipment;

in a further embodiment, the method further comprises: determining a second message based on information related to traffic characteristics of the first node; and sending the second message to the first node.

In various embodiments, the second message includes at least one of the following information: a first start indication information indicating whether the first node starts a configuration related to a specific search space; first stop instruction information indicating whether or not the first node stops transmission and reception of data and/or signals; first time indication information for indicating information related to the first node starting or restarting a timer; second time indication information for indicating information related to the first node starting or restarting the plurality of timers; first configuration indication information for indicating DRX-related configuration with respect to a first node; and second configuration indication information for indicating configuration related to PDCCH monitoring by the first node.

In a further embodiment, the method further comprises: configuration information is received from the first node that the first node desires to transmit and receive data and/or signals.

In various embodiments, the signals include PDCCH or wake-up signal WUS or advanced paging indication PEI signals.

According to another aspect of the present disclosure, there is provided a node apparatus in a wireless communication system, comprising: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform the operations of the above method.

In various embodiments, the node device is a base station or base station hub user plane CU-UP node or base station hub control plane CU-CP node.

According to another aspect of the present disclosure, there is provided a method performed by a fourth node in a wireless communication system, comprising: determining an auxiliary message based on the information related to the service characteristics of the first node; and sending the auxiliary message to a fifth node.

In a further embodiment, the method further comprises: the fourth node receives information about the traffic characteristics of the first node from a central unit user plane CU-UP of the core network device or of the user device or of the base station.

In various embodiments, the fourth node is a base station hub or base station hub control plane CU-CP and the fifth node is a base station distribution unit DU or base station hub user plane CU-UP.

According to another aspect of the present disclosure, there is provided a method performed by a fifth node in a wireless communication system, comprising: receiving an auxiliary message from a fourth node, the auxiliary message being determined based on information related to traffic characteristics of the first node; transmitting and receiving data and/or signals with the first node based on the auxiliary message about the service characteristics of the user equipment; and/or determining the first message and/or the second message based on the assistance message regarding the traffic characteristics of the user equipment and transmitting the first message and/or the second message to the first node.

According to another aspect of the present disclosure, there is provided a node apparatus in a wireless communication system, comprising: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform the method of: determining an auxiliary message based on the information related to the service characteristics of the first node; and sending the auxiliary message to a fifth node.

In a further embodiment, the node device receives information about the traffic characteristics of the first node from a core network device or a central unit user plane CU-UP of the user device or of the base station.

In a further embodiment, the node device is a base station hub unit or a base station hub unit control plane CU-CP and the fifth node is a base station distribution unit DU or a base station hub unit user plane CU-UP.

According to another aspect of the present disclosure, there is provided a node apparatus in a wireless communication system, comprising: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform the method of: receiving an auxiliary message from a fourth node, the auxiliary message being determined based on information related to traffic characteristics of the first node; transmitting and receiving data and/or signals with the first node based on the auxiliary message about the service characteristics of the user equipment; and/or determining the first message and/or the second message based on the assistance message regarding the traffic characteristics of the user equipment and transmitting the first message and/or the second message to the first node.

Drawings

FIG. 1 is a schematic diagram of a 5G architecture;

fig. 2 is an example of a base station structure;

FIG. 3 is a configuration flow example according to an embodiment of the present disclosure;

FIG. 4 is an example of a periodic configuration according to an embodiment of the present disclosure;

FIG. 5 is a main configuration example according to an embodiment of the present disclosure;

FIG. 6 is an example of timer updating according to an embodiment of the present disclosure;

FIG. 7 is a timer restart example according to an embodiment of the present disclosure;

fig. 8 is a network side flow example one according to an embodiment of the present disclosure;

fig. 9 is a network side flow example two according to an embodiment of the disclosure; and

fig. 10 is a network side flow example three according to an embodiment of the present disclosure; and

fig. 11 is a schematic diagram of a method performed by a first node according to an embodiment of the disclosure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Before proceeding with the description of the detailed description that follows, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The term "couple" and its derivatives refer to any direct or indirect communication between two or more elements, whether or not those elements are in physical contact with one another. The terms "transmit," "receive," and "communicate," and derivatives thereof, encompass both direct and indirect communication. The terms "include" and "comprise," as well as derivatives thereof, are intended to be inclusive and not limited to. The term "or" is inclusive, meaning and/or. The phrase "associated with" and its derivatives are intended to include, be included within, be connected to, be interconnected with, be included within, be connected to or be connected with, be coupled to or be coupled with, be able to communicate with, be co-operative with, be interwoven with, be juxtaposed with, be proximate to, be bound to or be in relation to, be bound to, be provided with an · attribute, be provided with an · relationship or be provided with a relationship with the · and the like. The term "controller" means any device, system, or portion thereof that controls at least one operation. Such a controller may be implemented in hardware, or in a combination of hardware and software and/or firmware. The functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. At least one of the phrases "..when used with a list of items means that different combinations of one or more of the listed items can be used and that only one item in the list may be required. For example, "at least one of A, B and C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, and a and B and C. For example, "at least one of A, B or C" includes any one of the following combinations: A. b, C, A and B, A and C, B and C, and a and B and C.

Furthermore, the various functions described below may be implemented or supported by one or more computer programs, each of which is formed from computer readable program code and embodied in a computer readable medium. The terms "application" and "program" refer to one or more computer programs, software components, sets of instructions, procedures, functions, objects, classes, instances, related data, or portions thereof adapted for implementation in a suitable computer readable program code. The phrase "computer readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer readable medium" includes any type of medium capable of being accessed by a computer, such as Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), a hard disk drive, a Compact Disc (CD), a Digital Video Disc (DVD), or any other type of Memory. "non-transitory" computer-readable media exclude wired, wireless, optical, or other communication links that transmit transitory electrical or other signals. Non-transitory computer readable media include media that can permanently store data and media that can store and later rewrite data, such as rewritable optical disks or erasable memory devices.

The terminology used herein to describe embodiments of the application is not intended to limit and/or define the scope of the application. For example, unless otherwise defined, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.

It should be understood that the terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise.

As used herein, any reference to "one example" or "an example," "one embodiment," or "an embodiment" means that a particular element, feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in one embodiment" or "in one example" in various places in the specification are not necessarily all referring to the same embodiment.

As used herein, a "portion of an item" means at least some of the item, and thus may mean less than all of the item or all of the item. Thus, a "portion of an object" includes the entire object as a special case, i.e., the entire object is an example of a portion of an object.

It will be further understood that the terms "comprises" and "comprising," and the like, when used in this specification, specify the presence of stated features and advantages, but do not preclude the presence of other features and advantages, and that the terms "comprising" and "include" specify the presence of stated features and advantages, but rather than preclude the presence of other features and advantages. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The various embodiments discussed below for describing the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system. For example, although the following detailed description of embodiments of the present disclosure will be directed to LTE and 5G communication systems, it will be appreciated by those skilled in the art that the main gist of the present disclosure may be applied to other communication systems having similar technical contexts and channel formats with slight modifications without substantially departing from the scope of the present disclosure. The technical solution of the embodiment of the application can be applied to various communication systems, for example, the communication system can comprise a global system for mobile communications (global system for mobile communications, GSM) system, a code division multiple access (code division multiple access, CDMA) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) system, a general packet radio service (general packet radio service, GPRS), a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD) and a general mobile communication system

(universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, fifth generation (5th generation,5G) system, or New Radio (NR), etc. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technology. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technology.

The following description with reference to the accompanying drawings is provided to facilitate a thorough understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding but should be considered exemplary only. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and phrases used in the following specification and claims are not limited to their dictionary meanings, but are used only by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more such surfaces.

The terms "comprises" or "comprising" may refer to the presence of a corresponding disclosed function, operation or component that may be used in various embodiments of the present disclosure, rather than to the presence of one or more additional functions, operations or features. Furthermore, the terms "comprises" or "comprising" may be interpreted as referring to certain features, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be interpreted as excluding the existence of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.

The term "or" as used in the various embodiments of the present disclosure includes any listed term and all combinations thereof. For example, "a or B" may include a, may include B, or may include both a and B.

Unless defined differently, all terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The general terms as defined in the dictionary are to be construed to have meanings consistent with the context in the relevant technical field, and should not be interpreted in an idealized or overly formal manner unless expressly so defined in the present disclosure.

Figures 1 through 11, discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will appreciate that the principles of the present disclosure may be implemented in any suitably arranged system or device.

Fig. 1 is an exemplary system architecture 200 according to various embodiments of the present disclosure. Other embodiments of the system architecture 200 can be used without departing from the scope of this disclosure. A User Equipment (UE) 201 is a terminal device for receiving data. The Next Generation radio access network (NG-RAN) 202 is a radio access network including base stations (gnbs or enbs connected to a 5G core network 5GC, also called NG-gnbs) providing access radio network interfaces for UEs. An access control and mobility management function (AMF) 203 is responsible for managing the mobility context of the UE, and security information. The User Plane Function (UPF) 204 mainly provides the functions of the user plane. The session management function (Session Management Function) SMF 205 is responsible for session management. The Data Network (DN) 206 contains services such as operators, access to the internet, and services of third parties.

In an NR system, to support network function virtualization, more efficient resource management and scheduling, a base station (gNB/ng-eNB) providing a wireless network interface for a terminal (UE) can be further divided into a centralized unit gNB-CU/ng-eNB-CU (gNB central unit/ng-eNB central unit) and a distributed unit gNB-DU/ng-eNB-DU (gNB distributed unit/ng-eNB distributed unit) (simply referred to as CU and DU in this disclosure), as shown in FIG. 2 (a). The gNB-CU has a Radio Resource Control (RRC) layer, a service data adaptation protocol (SDAP: service Data Adaptation Protocol) layer, a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) protocol layer, and the like, and the ng-eNB-CU has an RRC layer and a PDCP layer. The gNB-DU/ng-eNB-DU has a radio link control protocol (RLC), medium access control (Medium Access Control, MAC), a physical layer, and the like. A standardized public interface F1 is arranged between the gNB-CU and the gNB-DU, and a standardized public interface W1 is arranged between the ng-eNB-CU and the ng-eNB-DU. The F1 interface is divided into a control plane F1-C and a user plane F1-U. The transport network layer of F1-C is based on IP transport. SCTP (Stream Control Transmission Protocol ) is added over IP for more reliable transmission signaling. The protocol of the application layer is F1AP. SCTP may provide reliable application layer messaging. The transport layer of F1-U is UDP/IP, and GTP-U is used to carry user plane protocol data units PDU above UDP/IP. Further, as shown in fig. 2 (b), for the gNB-CU, the gNB-CU may include a gNB-CU-CP (control plane part of a centralized unit of a base station) and a gNB-CU-UP (user plane part of a centralized unit of a base station), where the gNB-CU-CP includes functions of a control plane of the base station, has RRC and PDCP protocol layers, and the gNB-CU-UP includes functions of a user plane of the base station, has SDAP and PDCP protocol layers. A standardized public interface E1 is arranged between the gNB-CU-CP and the gNB-CU-UP, and the protocol is E1AP. The interface between the control plane part of the central unit of the base station and the distribution unit of the base station is an F1-C interface, namely an F1 control plane interface, and the interface between the user plane part of the central unit of the base station and the distribution unit of the base station is an F1-U interface, namely an F1 user plane interface. In addition, in the NR system, a base station providing the E-UTRA user plane and the control plane, which accesses the 5G core network, is called a ng-eNB, and in order to support virtualization, such a base station (ng-eNB) may be further divided into a centralized unit ng-eNB-CU (gNB central unit/ng-eNB central unit) and a distributed unit ng-eNB-DU (gNB distributed unit/ng-eNB distributed unit) (abbreviated CU and DU in the present invention) as shown in fig. 2 (c). The ng-eNB-CU has an RRC, PDCP layer. The gNB-DU/ng-eNB-DU has a radio link control protocol (RLC) layer, a Medium Access Control (MAC) layer, a physical layer, and the like. Between the ng-eNB-CU and the ng-eNB-DU is a standardized public interface W1. The W1 interface is divided into a control plane W1-C and a user plane W1-U. The transport network layer of W1-C is based on IP transport. For more reliable signaling transmission, SCTP protocols are added over IP. The protocol of the application layer is W1AP. The transport layer of the W1-U is UDP/IP, and the GTP-U is used to carry user plane protocol data units (Protocol Data Unit, PDUs) over UDP/IP.

Currently, research on 5G networks is mainly focused on how to support the traffic of eMBB (Enhanced Mobile Broadband ), URLLC (Ultra-reliable and Low Latency Communications, high reliability with low latency) and eMTC (enhanced Machine-Type Communication ), but XR traffic is characterized somewhat differently from these traffic, e.g. 1) XR traffic is generated with periodicity, but due to the uncertainty of network transmission, there is jitter in the time when XR traffic arrives at the base station, so that XR traffic at the base station arrives aperiodically; 2) XR packets are large, but the packets arriving at the base station side each time are not of a fixed size; 3) XR services have high time-critical requirements, delays in data transmission can lead to poor user experience, and so on. These special service features result in that the data transmission mechanism of the current NR network is not necessarily capable of adapting to the transmission of XR services. XR devices, on the other hand, are battery powered terminals, which places high demands on the power consumption of the XR device. At present, the characteristic of XR service is not considered in the energy-saving technology of NR, so that the increase of energy consumption possibly occurs, and the experience of users using the XR service is affected. The technical problem to be solved by the invention is how to improve the energy consumption of the XR terminal and improve the experience of users in using XR service. The invention mainly relates to the following aspects:

■ Configuration of user equipment: how to configure the communication mechanism of the user equipment so that the user equipment can better adapt to the requirement of XR service on the basis of energy conservation

■ Operation of the user equipment: how user equipment performs XR service transmission according to configuration

■ Configuration of network side: how to configure user equipment in network equipment so as to cooperate with user equipment to transmit XR service

Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

The text and drawings are provided as examples only to aid in the understanding of the present disclosure. They should not be construed as limiting the scope of the disclosure in any way. While certain embodiments and examples have been provided, it will be apparent to those of ordinary skill in the art from this disclosure that variations can be made to the embodiments and examples shown without departing from the scope of the disclosure.

Before introducing the specific content, some assumptions and some definitions of the invention are given below.

■ The message names are only examples, and other message names can be used.

■ The inclusion of "first", "second", etc. in the message names of the present invention is merely an example of a message and does not represent an order of execution

■ The detailed description of the steps irrelevant to the present invention is omitted in the present invention.

■ In the present invention, the steps in each flow may be performed in combination with each other or may be performed separately.

The execution steps of the flows are examples only and do not exclude other possible execution orders.

■ In the present invention, the base station may be a 5G base station (such as a gNB, ng-eNB), or may be a 4G base station (such as an eNB), or may be a 6G base station, or may be another type of access node.

■ In the present invention, transmission of data refers to reception or transmission of data.

■ In the present invention, the transmission and reception of data and/or signals may refer to the reception of data and/or signals, the transmission of data and/or signals, and the reception and transmission of data and/or signals.

■ In the present invention, data and signals are used interchangeably, but the meaning of the terms are the same, and may refer to physical signals, signals on physical channels (e.g., downlink control information on PDCCH, signals on PDSCH, etc.), and data transmitted on physical channels (e.g., data packets of upper layer protocol (e.g., MAC packets, etc.)). As used herein, "data" may also be understood as "data and/or signals", and similarly, "signal" as used herein may also be understood as "data and/or signals".

The node related to the invention comprises:

■ The first node: user terminal, in one embodiment, is a terminal operating XR service

■ And a second node: base station, or central unit of base station, or control plane part of central unit of base station, or user plane part of central unit of base station

■ Third node: a distribution unit of the base station, where the second node sends the data of the first node to the third node, or where the second node sends the data of the third node to the first node in the first aspect: configuration of user equipment

In the prior art, in order to achieve energy saving of the ue, the network side performs some configurations, such as DRX (Discontinuous Reception), PDCCH (Physical Downlink Control Channel ) detection configurations, PDCCH skip (PDCCH skip) configurations, which can avoid the user from performing some unnecessary PDCCH detection, so as to reduce energy consumption of the user in the data transmission process. However, none of these configurations well considers XR service characteristics such as non-periodicity, jitter, packet size variation, high latency requirements, etc. In order to solve this problem, the present invention proposes a method of configuring a user so that the user can perform XR service transmission according to this new configuration. The first aspect of the present invention includes the following flow, as shown in fig. 3:

Step 1-1: the second node transmits to the first node a first configuration message, the message functioning to provide configuration information for the data transmission of the first node, the message including at least one of:

■ And the first number information is used for indicating the number of the current system frame, namely the number of the system frame where the first node receives the first configuration message. In one embodiment, the first number information is SFN (System frame number), and a frame is 10ms in length; in another embodiment, the first number information may be information with a value range being an integer, and may be named as frame status information, or may be named as other names; taking "frame status information" as an example, the information has a certain value range, such as 1-1000, 1-500, the information will increase with the increase of SFN, when the "frame status information" increases to be greater than the maximum value, the "frame status information" will become zero, such as the current "frame status information" is 1000 (1000 is the maximum value of the frame status information), when the SFN increases by 1 again (i.e. enters the next SFN), the "frame status information" will become zero; in another embodiment, the first numbering information may be numbering information of one super system frame, such as H-SFN, hyper-SFN, which is increased by 1 every time a period of time passes, and an example of the period of time may be 1024 system frames, i.e. when SFN becomes 1023 or 0, the H-SFN is increased by 1.

■ And second number information indicating reference system frame number information, which can be used to obtain a time at which a transmission period starts. In one example, this information is used to obtain the start time of the short cycle of DRX (DRX), e.g. the start time of the nth short cycle satisfies [ (sfn×10) +subframe number ] = (second numbering information×10+offset information+n×short cycle) module (10240), an example of this offset information is DRX-StartOffset

■ And transmitting period information, wherein the period information is used for indicating information about a period required by the first node when data transmission (or signal monitoring, such as PDCCH monitoring) is performed so as to adapt to the characteristics of user service to perform data transmission, and reduce the energy consumption of the user, and the transmission period information at least comprises one of the following information:

■ First period information indicating a first period required for data transmission (or signal interception, such as PDCCH interception) by the first node. In one embodiment, the period is a short DRX Cycle (short DRX Cycle) in DRX, in another embodiment, the period is a long DRX Cycle in DRX, in another embodiment, the period is a period in a search space configuration, in another embodiment, the period is a supersycle, such as a Super DRX Cycle, super monitor period (Super monitoring Cycle)

■ First offset information indicating an offset of a first period required for data transmission (or signal interception, such as PDCCH interception) by the first node, i.e., an offset corresponding to the above-mentioned "first period information". In one embodiment, the offset information is a start offset in DRX, in another embodiment the offset is an offset in a search space configuration, in another embodiment the offset is an overcycle offset

■ And second period information indicating a second period required for the data transmission by the first node, which is different from the "first period information" described above, which may be a period used in the first period described above. In one embodiment, the period is a sub-Cycle period (e.g., sub-Cycle), in another embodiment, the period is a short DRX Cycle in DRX, in another embodiment, the period is a long DRX Cycle in DRX, in another embodiment, the period is a period in a search space configuration. Further, the second period may be used in combination with the "first period information" described above, such as the second period being a second period used within the period indicated by the first period information. The period indicated by the first period is 50ms and the period indicated by the second period is 17ms, so that within 50ms the first node will have a data transmission based on the period 17 ms. A specific description of the behaviour of the first node will be presented in the second aspect.

■ And second offset information indicating an offset of a second period required for the first node to perform data transmission (or signal interception, such as PDCCH interception), i.e., an offset corresponding to the above-described "second period information". In one embodiment, the offset information is a start offset in DRX, in another embodiment the offset is an offset in a search space configuration, in another embodiment the offset is an offset of a sub-period

■ And the first configuration information is used for indicating configuration information required by the first node for carrying out first signal transceiving. The information has the beneficial effects that the information indicates the user to receive the signal only in the configured time, so that the energy consumption of the user is reduced. In one embodiment, the "first signal transceiving" means that the first node listens to the PDCCH, and further, if the first node receives the scheduling information of the first node while listening to the PDCCH, the first node continues to perform data transceiving according to the scheduling information, where the first configuration information includes at least one of the following information:

■ The first signal listens for configuration information indicating the configuration information required to listen for the signal. In one embodiment, the information indicates configuration information required for PDCCH monitoring, such as configuration of a search space, where the configuration indicates configuration information required for signal monitoring by the first node, such as a period, an offset, a resource, a duration of transceiving signals, a symbol of transceiving signals, alternatives of searching signals, and a type of search space, and a specific description may refer to a description of a current SearchSpace IE. Further, the configuration information may indicate a relatively sparse configuration (i.e., the configuration indicates that the first node receives signals less frequently, such as in the mechanism of search space group conversion (Search space set group switch), the sparse configuration being a default configuration of the search space, or a configuration of the first search space, or a configuration of the second search space, or a configuration of the third search space, etc.)

■ The first trigger indication information, which is used to instruct the first node to trigger and/or activate (note that "trigger" and "activate" are used interchangeably herein) the time of the signal transmission configured by the "first signal listening configuration information" described above, and in one embodiment, when the first node is configured with DRX, the indication information indicates that when a timer of the first node (such as an On duration timer in the DRX mechanism) is started, the first node needs to transmit and receive signals according to the "first signal listening configuration information" described above. A specific description of the behaviour of the first node will be presented in the second aspect.

■ First trigger timer information indicating that the first node starts a timer required for signaling configured by the above-described "first signal monitoring configuration information", in one embodiment, after the first node is configured with DRX, the first node needs to perform signaling using the configuration information indicated by the above-described "first signal monitoring configuration information" for a time indicated by the "first trigger timer information" before the timer (e.g., on duration timer in DRX mechanism) starts

■ And second configuration information, wherein the second configuration information is used for indicating configuration information required by the first node for second signal transceiving. The information has the beneficial effects of helping a user to know whether the user has data to send and receive in time. In one embodiment, the "second signal transceiving" means that the first node starts to monitor a physical signal, such as a WUS (Wake-up) signal, a PEI (Paging Early Indication) signal, or the like, and further, the signal may play a role of informing the first node whether there is data to be received or transmitted, if the signal informs the first node that there is data of the first node to be transmitted or received On the network side, the first node will start data reception or transmission (in one example, if the first node is configured with DRX, the first node will start an On duration timer or the first node enter an Active time, and then start data transmission or reception of the first node), where the second configuration information includes at least one of the following information:

■ The second signal listens for configuration information indicating the configuration information required to listen for the second signal. Such as WUS configuration, PEI configuration, which may include at least one of periodicity, offset, resources, etc.

■ And a second trigger indication information, which is used to indicate the time for the first node to start the signal transceiving configured by the second signal monitoring configuration information, in one embodiment, after the first node is configured with DRX, the indication information indicates that when a timer of the first node (such as an On duration timer in a DRX mechanism) starts, the first node needs to perform transceiving of the second signal according to the second signal monitoring configuration information. In another embodiment, when the configuration information of the search space indicates that the user needs to start PDCCH monitoring, the user may monitor the second signal according to the "second signal monitoring configuration information" above, and if the second signal informs the user that there is a new data transmission, the user monitors the PDCCH according to the configuration information of the search space. A specific description of the behaviour of the first node will be presented in the second aspect.

■ And second trigger timer information indicating that the first node starts a timer required for signal transmission and reception configured by the "second signal monitoring configuration information", wherein in one embodiment, after the first node is configured with DRX, the first node needs to transmit and receive signals using the configuration information indicated by the "second signal monitoring configuration information" during a time indicated by the "second trigger timer information" before the first timer (e.g., an On duration timer in a DRX mechanism) starts, and in another embodiment, after the first node is configured with a search space, the first node needs to transmit and receive signals using the configuration information indicated by the "second signal monitoring configuration information" during a time indicated by the "second trigger timer information" before starting PDCCH monitoring.

The first configuration information and the second configuration information have substantially the same structural content, and the main difference is that the first configuration information is for transceiving of a first signal (for example, PDCCH), and the second configuration information is for transceiving of a second information (for example, WUS or PEI).

■ And third configuration information, which indicates the configuration of the first node about PDCCH monitoring, so as to dynamically configure the user to monitor the PDCCH according to the service characteristics. The information has the beneficial effects of helping the user obtain the time for monitoring the PDCCH and reducing unnecessary energy consumption. Further, the "third configuration information" may further include a plurality of sets of "configurations related to PDCCH monitoring", and for each set of configurations, the third configuration information includes at least one of the following information:

■ An offset time for initiation of monitoring (e.g., when receiving an indication to initiate PDCCH monitoring, the first node needs to wait for the offset time before initiating PDCCH monitoring),

■ The length of time of monitoring indicates the length of time that the first node needs to monitor the PDCCH after starting the PDCCH monitoring

■ And the first state indication information is used for indicating whether a group of configurations are in an active state, if so, the first node monitors the PDCCH according to the configurations, otherwise, the first node does not monitor the PDCCH.

In one embodiment, the configuration information of PDCCH monitoring indicated by the "third configuration information" is different from the configuration of the existing search space, which gives a configuration of periodically performing PDCCH monitoring, and the "third configuration information" gives a configuration of once, that is, once the PDCCH monitoring time indicated by the information ends, the first node stops PDCCH monitoring.

In another embodiment, the third configuration information includes second status indication information indicating whether one or more of the plurality of sets of configuration information is in an active state.

■ And first timer information indicating configuration information of a first timer required for the first node to transmit and receive data and/or signals, the timer indicating a time for the user to transmit and receive data and/or signals or a transition time of a configuration required for the user to transmit and receive data and/or signals. The information has the beneficial effects of helping a user determine the time length for carrying out data transceiving, avoiding unnecessary data transmission and reducing energy consumption. In one embodiment, the timer is a timer configured to the first node when configuring DRX, such as an On duration timer, an Inactivity timer, a downlink retransmission timer, an uplink retransmission timer, etc., and in another embodiment, the first timer is a timer required to configure a search space group transition of the first node, such as a search space transition timer (Search space switch timer), the timer functions to instruct the first node to transition from the configuration of one search space to the configuration of another search space. The information may include one or more configurations of length information that, if included, are for different values of a timer. For a configuration of length information, the first timer information includes at least one of the following information:

■ First timer length information indicating an initial length of the timer upon each start or restart of the timer, the length of the timer gradually decreasing over time until 0 (i.e., the timer times out), the timer also being restarted during the time the timer gradually decreasing, i.e., the timer is reset to the length indicated by the "first timer length information" (initial length)

■ First condition information indicating condition information for starting or restarting the timer, and further, indicating a condition for starting or restarting the length indicated by the above-described "first timer length information". In one embodiment, the condition information indicates the number of new transmissions (new transmissions) experienced by the first node when starting or restarting the length indicated by the "first timer length information" (e.g., if the condition information is set to 5, indicating that the first node needs to start or restart the timer according to the length indicated by the "first timer length information", in one embodiment, the fifth new transmissions refer to the fifth one within a DRX cycle), and in another embodiment, the condition information indicates the number of times the first node adopts a particular search space configuration (e.g., default search space configuration, or configuration of the first search space, or configuration of the third search space, etc.) when starting or restarting the length indicated by the "first timer length information", if the condition information is set to 5, indicating that the first node adopts the fifth one within the first timer length information "when starting or restarting the first timer according to the length indicated by the" first timer length information "

■ Decrementing step information, which indicates the initial length of the timer (or the step size of the timer when the timer is decremented) set when the timer is started or restarted, and the initial value adopted by the first node is gradually reduced each time the timer is started after the first node receives the information, or the timer is decremented according to the length indicated by the information (e.g., the timer is decremented according to 2 time slots each time the timer is decremented when the decrementing step size is 2, e.g., the timer length is 10,8,6, …).

■ First applicability information indicating applicability of one or more information included in the above-mentioned "first timer information", such as PDU session identification, qoS flow identification, DRB (Data Radio Bearer ) identification, identification of logical channel group, which respectively indicate one or more of PDU session, qoS flow, DRB, logical channel or logical channel group to which the information included in the above-mentioned "first timer information" is applicable

■ And third status indication information, which is used for indicating whether the configuration for one length information is in an active state, if so, the first node adopts the configuration, otherwise, the configuration is not adopted.

In another embodiment, the first timer information includes fourth status indication information indicating whether one or more of the configurations of the plurality of sets of length information are in an active state

■ And second timer information indicating information about a second timer required for the configuration of the data and/or signal transmission/reception by the first node, the second timer indicating a time required for the configuration using the data and/or signal transmission/reception, and when the second timer expires, the first node no longer uses the configuration for signal transmission/reception. The information has the beneficial effects of indicating the user to transmit and receive data and/or signals according to specific configuration, and avoiding unnecessary energy consumption. In one embodiment, the "configuration of the first node for performing signal transceiving" may be a configuration of a search space used by the first node (such as a default search space configuration, or a configuration of the first search space, or a configuration of the second search space, or a configuration of the third search space, etc.), when the second timer expires, the first node does not use the configuration of the search space to perform signal transceiving, in another embodiment, the "configuration of the first node for performing signal transceiving" may be a configuration of a DRX used by the first node or a configuration of a parameter (such as On duration timer, inactivity timer, downlink retransmission timer, uplink retransmission timer, etc.), when the second timer expires, the first node does not use the configuration of the DRX or the configuration of a parameter (such as On duration timer, inactivity timer, downlink retransmission timer, uplink retransmission timer, etc.), in another embodiment, the "configuration of the first node performs signal transceiving" may be a configuration of a DRX or a configuration of a parameter (such as On duration timer, inactivity timer, downlink retransmission timer, uplink retransmission timer, etc.), when the first node listens for signals or the other node does not monitor signals. The "second timer information" includes at least one of the following information:

■ Second timer length information indicating an initial length of the timer every time the timer is started or restarted, the length of the timer gradually decreasing with the lapse of time until 0 (i.e., the timer times out), and the timer also being restarted during the time period in which the timer gradually decreases, i.e., the timer is reset to the length (initial length) indicated by the "second timer length information

■ Second applicability information indicating applicability of one or more information included in the "second timer information", such as PDU session identification, qoS flow identification, DRB identification, identification of logical channel group, which respectively indicate applicability of PDU session, qoS flow, DRB, logical channel group of information included in the "second timer information

■ Status indication information, which is used to indicate whether the "second timer information" is in an active state, if so, the first node will adopt the configuration, otherwise, it will not.

■ DRX configuration information, which gives the configuration needed for the first node to perform DRX, may include one or more sets of configuration information for DRX, each set of configuration information corresponding to a different service, unlike the prior art. The information has the beneficial effects of helping a user to configure DRX aiming at different services, further carrying out data receiving and transmitting according to service characteristics, and avoiding unnecessary energy consumption. For a set of configuration information, the information includes at least one of:

■ A first configuration DRX information, which includes configuration of parameters for performing DRX, such as DRX cycle, offset, on duration timer, inactivity timer, RTT timer, retransmission timer, etc., and details can be found in the current DRX-configuration

■ Application range information indicating the application range of the "first configuration DRX information", such as PDU session identification, qoS flow identification, DRB identification, logical channel group identification, which indicates the application PDU session, qoS flow, DRB, logical channel group of the information contained in the "first configuration DRX information", respectively

■ And fifth state indication information, which is used for indicating whether a group of configurations are in an active state, if so, the first node performs DRX according to the configurations, otherwise, the first node does not perform DRX.

■ An indication of the default configuration (or the main configuration, wherein the default configuration may be replaced by the main configuration), and this information is used to indicate whether the "first configuration DRX information" is the default configuration, and if so, the user performs DRX according to the default configuration.

In another embodiment, the DRX configuration information may include sixth state indication information indicating whether one or more of the plurality of sets of configuration information regarding DRX are in an active state.

When the first node receives the plurality of sets of configuration information, the first node needs to determine what kind of configuration information needs to be used, and the behavior of the first node side will be described in the second aspect of the present invention.

Step 1-2: optionally, the first node sends a first configuration response message to the second node, the message serving to acknowledge receipt of the first configuration message and to inform the first node that the configuration in the first configuration message has been completed.

Step 1-3: optionally, the second node sends a second configuration message to the first node, the message serving to indicate the configurations required for the data transmission, which in one embodiment is one of the configurations given in step 1-1, the message comprising at least one of the following information:

■ First activation indication information indicating whether the first node activates a configuration of a search space (e.g., a default search space configuration, or a configuration of the first search space, or a configuration of the second search space, or a configuration of the third search space, etc.) for PDCCH detection. The information has the beneficial effects of helping a user to start proper configuration to detect the PDCCH and reducing the energy consumption of the user. In one embodiment, the indication information may be sent to the first node every time the On duration timer is started, if the indication information indicates that the first node starts to detect the PDCCH using the default search space configuration (the first search space configuration, i.e. the time for detecting the PDCCH is relatively sparse), the first node starts to detect the PDCCH in the sparse time every time the On duration timer of the DRX is started, so that the number of times the first node detects the PDCCH is reduced, and the energy of the first node is saved

■ First stop indication information indicating whether the first node can stop reception of the first signal (e.g., interception of PDCCH). The information has the beneficial effects of helping a user to stop receiving signals in time and saving energy. In one embodiment, if the first node configures DRX and the first node is in Active time, after the first node receives the "first stop indication information", the first node stops receiving signals (such as monitoring of PDCCH), ends the Active time in advance, and further enters in Active time, in another embodiment, the indication information may indicate monitoring of skip PDCCH of the user, that is, if the first node configures DRX and the first node is in Active time, the first node skips (skip) monitoring of PDCCH in the remaining Active time after receiving the indication information

■ A first time indication information indicating an initial length used by the first node when starting a timer. The information has the beneficial effects of configuring the time required by the user for data and/or signal reception and saving the energy of the user. In one embodiment, when the plurality of length information of one timer is configured for the first node in step 1-1 (such as the plurality of lengths of one timer configured in the "first timer information" described above, or the plurality of lengths of one timer configured in the "second timer information" described above), the "first time indication information" may be used to instruct the first node to use which of the "plurality of length information" to set the initial value at the time of starting or restarting the timer. For example, the first node is configured with a plurality of values of DRX Inactivity timer in step 1-1, and the "first time indication information" may indicate which value the first node should use to set the initial value at the time of startup or restart of the activity timer; as another example, the first node is configured with a plurality of values of Search space switch timer in step 1-1, the "first time indication information" may indicate which value the first node should use to set Search space switch timer the initial value at start-up or restart

■ A second time indication information indicating an initial length of a plurality of timers triggered and/or started by the first node in one embodiment, and in another embodiment, the indication information is used to indicate a plurality of initial lengths used when the first node starts a plurality of identical timers, for example, in step 1-1, the first node is configured with a plurality of length information of an activity timer (or on duration timer, or a downlink retransmission timer, or an uplink retransmission timer, or a start offset, or Search space switch timer, etc.), and the second time indication information may be used to indicate an initial value of each activity timer started; in another embodiment, the indication information is used to indicate whether the first node starts a plurality of different timers and related parameters, for example, the indication information indicates two or more of an activity timer, on duration timer, a downlink retransmission timer, an uplink retransmission timer, a start offset, and Search space switch timer; in another embodiment, the indication information is used to indicate whether the first node starts a plurality of different timers and associated parameters (e.g., the indication information indicates whether an activity timer, on duration timer, a downlink retransmission timer, an uplink retransmission timer, a start offset, and two or more timers in Search space switch timer) and one of a plurality of initial values for each timer. In addition, the "second time indication information" may be implemented in the form of a bitmap, and if the bitmap is a different initial value for indicating that a plurality of identical timers are started, each bit is used for indicating the initial value for starting, and a bit of "1" indicates that a timer with the value corresponding to the bit as the initial value is started; if the bitmap is used for indicating different timers, each bit is used for indicating the started timer, for example, a bit '1' indicates that the timer corresponding to the bit needs to be started; if this bitmap is a different initial value for indicating different timers, each bit may be used to indicate the timer that was started and the initial value of that timer, e.g., bit "1" indicates that the timer to which that bit corresponds has started. The information has the beneficial effects of helping the user to determine the configuration of the business suitable for the current service user, and reducing the energy consumption of the user.

■ And a first configuration indication information indicating a configuration to be adopted by the first node, such as when a plurality of DRX configurations are configured for the first node through step 1-1, the indication information may indicate a DRX configuration to be adopted by the user. The information has the beneficial effects of helping a user determine the configuration for data transceiving and reducing the energy consumption of the user. For example, in step 1-1, the first node is configured with a plurality of DRX configurations (each configuration including at least one parameter of the Inactivity timer, on duration timer, downlink retransmission timer, uplink retransmission timer, start offset), and the "first configuration indication information" may be used to inform the first node of the configuration of one or more DRX to be employed

■ And second configuration indication information, which is used for indicating the configuration of the PDCCH monitoring by the user, wherein the indicated configuration can be one or more of the third configuration information configured in the step 1-1. The information has the beneficial effects of helping a user determine the configuration for data transceiving and reducing the energy consumption of the user.

Further, to assist the configuration of the network side, optionally, the method further includes step 1-0, where the first node sends a first auxiliary message to the second node, where the message includes at least one of the following information:

■ Business trait related information including at least one of:

■ Cycle information

■ Information of jitter, such as mean value of jitter, variance of jitter, mean square error of jitter, etc

■ Information about the size of a burst, such as an average value of the size of data of a burst, a maximum value of the size of data, a minimum value of the size of data, a variance of the size of data, a mean square error of the size of data, etc

The information has the beneficial effects of helping the second node to obtain the service characteristics of the user, thereby generating configuration information suitable for data transceiving of the user service and reducing the energy consumption of the user.

■ Desired configuration information indicating a configuration desired by a user, the user potentially providing one or more sets of configurations, the information including at least one of:

■ Configuration information of DRX, which includes configuration of DRX parameters, such as DRX cycle, offset, on duration timer, inactivity timer, RTT timer, retransmission timer, etc., and specific contents can be found in the current DRX-Config

■ Configuration information of the search space, including configuration of the PDCCH search space, such as period, offset, duration, type of DCI, aggregation level, etc., and specific content can be seen in the current configuration of search space

■ The configuration information of the signals, the signals to which the information is directed may be WUS signals, PEI signals, and specific content may be referred to the current configuration of WUS signals or the configuration (such as period, offset, etc.) of PEI signals.

The information has the beneficial effects of helping the second node to generate configuration information suitable for data transceiving of user service, and reducing the energy consumption of users.

Upon receipt of the message, the second node determines the configuration information in step 1-1 and/or step 1-3 based on the content of the message.

In the above procedure, step 1-1 and step 1-2 may be configured by RRC message (e.g., rrcreconditioning), while step 1-3 may be configured by RRC message (e.g., rrcreconditioning) or MAC layer signaling (e.g., MAC Control Element) or physical layer signaling (e.g., downlink control information), may be configured by other types of messages or signaling, and step 1-0 may be sent by RRC message, such as ueassostantinformation, may be sent by other types of messages or signaling.

Second aspect: operation of user equipment

After the user obtains the configuration information through the signaling interaction of the first aspect of the present invention, the user needs to send and receive signals according to the configuration information. The behavior of the user will vary according to the configuration and the different configurations are directed to different problems, so the second aspect of the present invention mainly introduces the behavior of the user side. For convenience of description, the behavior of the user will be described from the point of view of different technical problems.

The technical problems are as follows: periodic configuration adapted to XR traffic

The existing XR traffic is generated periodically, and for an ideal network, the XR traffic will also appear periodic when it reaches the base station. However, due to uncertainty of actual network transmission, time jitter may occur when XR traffic arrives at the base station, i.e. the arrival of XR traffic detected at the base station side may not have periodicity. Even so, if the base station can follow the characteristic of XR service periodicity as much as possible when configuring the DRX period or search space, the data transmission of XR service can be well matched, namely, the user only needs to receive the data when the XR service arrives, and the energy saving effect of the user is further achieved. In order to configure a period matching the XR traffic characteristics, a technical problem is that the period of the XR traffic is non-integer, for example, if the period of an XR traffic is 60fps (frame per second), 90fps,120fps, then the period of an XR frame is 16.666ms,11.1111ms,8.3333ms, respectively. Such non-integer periods are difficult to send to the user through a suitable configuration and are difficult for the user to achieve. To solve this problem, the present invention proposes a two-stage periodic configuration method:

In this approach, the user would be configured with two different periods, one large and one small. Taking the example of PDCCH monitoring by the user, the large period indicates the period of repetition of the mode of PDCCH monitoring by the user, the small period indicates the period of PDCCH monitoring by the user in one large period, and when the user monitors PDCCH in one large period in one small period, a mode of PDCCH monitoring can be formed, and the mode is repeated continuously according to the large period. Specifically, the configuration of the large period includes cycle-1 and start offset-1, the configuration of the small period includes cycle-2 and start offset-2, and if the value of the start offset-1 or the start offset-2 is 0, the configuration may not include the start offset-1/the start offset-2. The time of the start of a large period may be determined according to the first and/or second number information, the subframe number, the cycle-1 and the start offset-1, and the position of the start of a small period in a large period may be determined according to the first and/or second number information, the subframe number, the cycle-1, the start offset-1, the cycle-2 and the start offset-2:

■ In one embodiment, the first numbering information is SFN. The subframe position satisfying [ (sfn×10) +subframe number ] module (Cycle-1) = (Start Offset-1) module (Cycle-1) is the position of the large Cycle Start, and the subframe position satisfying { [ (sfn×10) +subframe number ] module (Cycle-1) } module (Cycle-2) = (Start Offset-2) module (Cycle-2) is the position of the small Cycle Start

■ In one embodiment, the first number information may be information with an integer value range, may be named as frame status information, or may be named as other names, and the description of the information may be referred to as "first number information" in "first configuration message". The subframe position of [ "(frame status information" ×10) +subframe number ] module (Cycle-1) = (Start Offset-1) module (Cycle-1) is the position at which the large Cycle starts, and the subframe position of { [ ("frame status information" ×10) +subframe number ] module (Cycle-1) } module (Cycle-2) = (Start Offset-2) module (Cycle-2) is the position at which the small Cycle starts

■ In another embodiment, the first numbering information may be numbering information of a super system frame, such as H-SFN, hyper-SFN, and the description of the information may be referred to as "first numbering information" in the "first configuration message". The subframe position satisfying [ (sfn+1024 x first number information) ×10+subframe number ] module (Cycle-1) = (Start Offset-1) module (Cycle-1) is the position at which the large Cycle starts, and the subframe position satisfying { [ (sfn+1024 x first number information) ×10+subframe number ] module (Cycle-1) } module (Cycle-2) = (Start Offset-2) module (Cycle-2) is the position at which the small Cycle starts.

■ In another embodiment, the first and second numbering information may be utilized to determine. The first number and the subframe number where the nth large Cycle starts satisfy the following formula, [ (first number information×10) +subframe number ] = (second number information×10+start Offset-2+n×cycle-1) module (10240), and the subframe position satisfying { [ (first number information+1024×10+subframe number ] module (Cycle-1) } module (Cycle-2) = (Start Offset-2) module (Cycle-2) is the position where the small Cycle starts.

After the user determines the location of the start of each small period, he can determine the listening of the PDCCH according to other configurations, such as determining the time of the start of the drx-onduration timer according to the drx-SlotOffset, i.e. after determining the location of the start of the small period, the drx-onduration mter starts starting from the drx-SlotOffset after the start of the subframe. In one embodiment, if the DRX of the user is configured, cycle-1 and start offset-1 may be DRX short/long cycle and start offset in the prior art, respectively, and cycle-2 and start offset-2 are newly configured information, and after determining the starting position of each small period, the user may monitor the PDCCH according to other configurations (such as an activity timer, a retransmission timer, an RTT timer, etc.); in another embodiment, if the search space of the user is configured, cycle-1 and start offset-1 are information of the existing configuration (such as the current monitoringslot periodic and offset), and cycle-2 and start offset-2 are information of the new configuration, and after determining the starting position of each small period, the user can monitor PDCCH according to other configurations of the configuration (such as duration in the current searchspace, searchspace type, etc.). Fig. 4 shows an example in which cycle-1= 50ms,start offset-1=5 ms, cycle-2= 17ms,start offset =9 ms, where the positions of the beginning of the large cycle are respectively the subframes 5,55, and the positions of the beginning of the small cycle are respectively the subframe 9,26,43,59,76,93, and the subframe in which the user listens to the PDCCH is one or more subframes (5 subframes are shown in the figure, but the number of actual subframes is determined according to the other configurations described above, and will not be repeated here). In implementing the configuration of the size period, there are two implementations:

Mode 1: newly defining small period and reusing existing configuration in large period

In this manner, the configuration of the first node by the second node includes the transmission period information in the above step 1-1, where the first period information and the first offset information correspond to the above configuration of the large period (including Cycle-1 and start offset-1, which may be configured with existing DRX short/long Cycle and start offset, respectively, for DRX, and with existing monitoringslotperiodityand offset, for configuration of the search space), and the second period information and the second offset information correspond to the above configuration of the small period (including Cycle-2 and start offset-2, which are new configuration information).

Mode 2: newly defined large period and small period reuse existing configuration

In this manner, the configuration of the first node by the second node includes the transmission period information in the above step 1-1, where the first period information and the first offset information correspond to the configuration of the above large period (including Cycle-1 and start offset-1, which are new configurations), and the second period information and the second offset information correspond to the configuration of the above small period (including Cycle-2 and start offset-2, configured with existing DRX short/long Cycle and start offset, respectively).

The method has the beneficial effects that: the period of PDCCH monitoring configured by the user can be matched with the period of XR service well, so that the user can start the PDCCH monitoring when the XR service arrives as much as possible.

The technical problems are as follows: jitter in XR packet arrival

Although the XR service is generated periodically, when the XR data packet transmitted by the actual network arrives at the base station, jitter will occur, that is, the data packet arrives not according to the complete periodicity, when the base station configures the user to monitor the PDCCH, if the base station configures the data packet according to the complete periodicity of the XR service, the user does not start monitoring the PDCCH when the XR data packet arrives, which may cause an increase in time delay of the XR, and also may cause unnecessary energy consumption of the user when the user starts monitoring the PDCCH. In order to guarantee the delay requirement and at the same time to consider the energy consumption of the user, a technical problem is how to configure the reception of the user signal (such as the monitoring of the PDCCH) in consideration of the jitter of the packet arrival. In order to solve the technical problem, the invention provides the following method:

the method comprises the following steps: the user starts monitoring with a sparse PDCCH monitoring configuration at the beginning of the Active time

When the user is configured with DRX, at initiation on duration timer, the user listens to the PDCCH in a particular PDCCH listening configuration (e.g., as indicated by configuration information for the search space, e.g., as if the configuration is a default configuration for the search space, or a configuration for the first search space, or a configuration for the second search space, or a configuration for the third search space, etc.). In one embodiment, the specific configuration indicates a relatively sparse PDCCH listening mode, e.g., the number of subframes in which the user listens for PDCCH is small in multiple subframes. To implement this method, the base station needs to send configuration information to the user, such as "first trigger indication information" in "first configuration information" in step 1-1, and the "configuration of specific PDCCH monitoring" may be given by "first signal monitoring configuration information" in "first configuration information" in step 1-1.

The second method is as follows: the user starts monitoring with a sparse PDCCH monitoring configuration before the Active time starts

After the user is configured with DRX, during a period of time before On duration timer begins (the period of time is configured by the base station), the user monitors PDCCH in a specific configuration for PDCCH monitoring (e.g., a configuration indicated by configuration information of the search space, e.g., a configuration of the search space that is a default, or a configuration of the first search space, or a configuration of the second search space, or a configuration of the third search space, etc.). In one embodiment, the specific configuration indicates a relatively sparse PDCCH listening mode, e.g., the number of subframes in which the user listens for PDCCH is small in multiple subframes. To implement this method, the base station needs to transmit configuration information to the user, such as "first trigger timer information" in "first configuration information" in step 1-1 described above. The "configuration of specific PDCCH monitoring" may be given by "first signal monitoring configuration information" in the "first configuration information" in the above step 1-1.

And a third method: the user listens for a physical signal informing whether there is a data arrival

The base station informs the user of whether new data needs to be transmitted by a signal, and the user listens to the signal. If the received signal informs the user that there is new data waiting for transmission, the user starts the monitoring of the PDCCH. The signal may be a WUS signal, a PEI signal, or other new signal. In order for the user to receive the signal, the base station needs to transmit configuration information of the signal to the user, such as "second signal listening configuration information" in the "second configuration information" in step 1-1 described above. In one embodiment, the user may start the monitoring of the signal when the On duration of the DRX starts, and if the signal informs that there is a new data transmission, the user starts the monitoring of the PDCCH; in another embodiment, the user may first start the monitoring of the signal when starting the PDCCH monitoring according to the configuration of the search space, and if the signal informs of new data transmission, the user starts the monitoring of the PDCCH. In order to instruct the user to start listening to the signal at the above specific time, the base station needs to transmit configuration information, such as "second trigger instruction information" in the "second configuration information" in the above step 1-1, to the user. In another embodiment, the user may perform the signal monitoring for a period of time before starting a specific time (e.g. the on duration start of DRX, the start time of PDCCH monitoring indicated by the search space configuration information), where the "period of time" is "second trigger timer information" in "second configuration information" in step 1-1 above, which is configured by the base station to the user.

The method has the beneficial effects that: before the user data does not arrive, the user can receive fewer signals (such as monitoring of PDCCH, receiving of physical signals, and the like), so that the energy consumption of the user is reduced.

The technical problems are as follows: end of XR packet burst (burst)

XR packets arrive in bursts as well, one burst possibly containing one or more packets. If the base station can know that the data packet transmitted by the base station is the last data packet in a burst, the base station can inform the user to end the monitoring of the PDCCH in advance, so that the energy saving of the user is realized. In a practical system, the number of data packets included in each burst varies, so the base station cannot know which data packet is the last data packet in one burst. If the base station indicates the user to end the monitoring of the PDCCH in advance when the data packet of one burst is not sent, the delayed receiving of the subsequent data of the burst can be caused, and the time delay of XR service is increased; if the base station does not end the PDCCH monitoring of the user after all the data packets of a burst are transmitted, excessive energy consumption of the user is caused. Therefore, in order to achieve a compromise between energy consumption and delay, a technical problem is how to ensure that a user can timely end monitoring of PDCCH when all data packet transmissions in a burst are completed. In order to solve the technical problem, the invention provides the following method:

■ The method comprises the following steps: the base station transmits indication information to stop the monitoring of PDCCH

In this method, assuming that the base station can accurately know which data packet is the last data packet in a burst, the base station may send an indication information to the user after completing transmission of the last data packet, where in an embodiment, the indication information may inform the user to stop monitoring of the PDCCH, for example, after configuring DRX, if the active time of the user has not yet ended, the base station may send the indication information to the user to stop monitoring of the PDCCH of the user. The indication information may be indicated by the "first stop indication information" in the above-described step 1-3.

■ The second method is as follows: configuration of base station dynamic adjustment timer

In this approach, the base station dynamically adjusts the configuration of some timers (e.g., DRX Inactivity timer, search space switch timer) by indicating the initial value of the timer that the user needs to employ. The base station dynamically determines the value of the timer to be used based on the number of packets in the transmitted burst. To implement this method, the base station configures the values of the plurality of timers by the "first timer information" or the "second timer information" in the step 1-1, and then indicates the value of the timer required to be adopted by the user by the "first time indication information" in the step 1-3, or directly indicates the value of the timer required to be adopted by the user by the "first time indication information" in the step 1-3.

■ And a third method: timer initiation based on configured condition information

In this method, the base station configures a plurality of possible values for a timer, and the conditions used for each value are also configured for the user. When determining the value of the timer, the user needs to determine the conditions that can be met currently. In one embodiment, when the timer is an activity timer in a DRX configuration, the condition information may be information indicating the first number of new transmissions, i.e., the length of the timer that the user needs to use when the number of new transmissions obtained by the user is the number indicated by the first number of indication information, e.g., the timer length information includes (100 ms, 1 time), (60 ms,2 times), (30 ms,3 times), (20 ms,4 times), (10 ms,5 times), …, then it means that the activity timer used when the user obtains the first new transmission is 100ms, the activity timer used when the user obtains the second new transmission is 60ms, and so on. To implement this method, the base station can determine the condition required to start a certain timer length by "timer length information" and "first condition information" in the "first timer information" in the above-described step 1-1.

■ The method four: dynamic decrementing of timer

In this method, the initial value of the timer is dynamically reduced, so that the length of the timer used by the user becomes shorter as the number of data to be transmitted increases. In one embodiment, this information indicates that the initial value of the timer needs to be decremented by one step each time the timer is started or restarted, for example, the "decrementing step information" is 5ms, the timer length information is 100ms, the value of the timer is set to 100ms when the timer is started or restarted for the first time, the value of the timer is set to 95ms when the timer is started or restarted for the second time, the value of the timer is set to 90ms when the timer is started or restarted for the third time, and so on; in another embodiment, the information indicates that when the timer is started to be decremented by the step size when the timer is started or restarted each time, and in this embodiment, the information may further include condition information (which may be configured by the base station to the user) indicating that the initial length of the timer is started to be decremented, such as information of the number of times the timer is started or restarted (i.e., when the number of times the timer is started or restarted exceeds the number of times indicated by the information), for example, the "condition information of the timer is set to be 3 for the number of times the timer is started or restarted," the decrementing step size information "is 5ms, the timer length information is 100ms, the initial value at the time of the timer is started or restarted is 100ms when the number of times the timer is started or restarted is 3 or less, the initial value at the time of the timer is started or restarted for the fourth time, i.e., the initial value at the time of the timer is started or restarted is 95ms, the initial value at the time of the timer is started or restarted for the fifth time is 90ms, and so on. To implement the method, the base station indicates the step-down of the initial value of the timer by the "step-down information" in the "first timer information" in the above step 1-1

■ And a fifth method: configuring time to use a listening configuration

In the method, the base station indicates the user to adopt a specific monitoring configuration after judging that the data in a burst is likely to be sent, and starts a timer, wherein the timer indicates the time of adopting the specific monitoring configuration, and if the timer is overtime, the user does not monitor any more. In one embodiment, the "one specific listening configuration" is a configuration of a search space, and if the time for which the user uses the configuration to perform PDCCH listening exceeds a predetermined value (i.e., after the timer expires), the user stops PDCCH listening, and further, the user uses the "one specific listening configuration" indicated by the base station, or the user is changed from another specific listening configuration (such as a dense PDCCH listening configuration) to the "one specific listening configuration" (a sparse PDCCH listening configuration); in another embodiment, the "a specific listening configuration" is an initial value of a specific activity timer, and if the time for which the user takes the initial value of the specific activity timer exceeds a predetermined value (i.e., after the timer expires), the user stops PDCCH listening, and in another embodiment, the "a specific listening configuration" is a configuration for configuring the user to perform signal (e.g., WUS, PEI, etc.) listening. To implement this mechanism, the base station may be configured to the user through the "second timer information" in step 1-1 described above.

The method has the beneficial effects that: the user can dynamically adjust the base station to monitor signals (such as PDCCH, WUS, PEI) according to the configuration of the base station, so that the user is prevented from entering a dormant state when the transmission of all data packets of one burst is not completed, and the user is ensured to continuously monitor the signals without consuming higher energy after the burst data is transmitted, thereby saving the energy of the user and ensuring the time delay requirement of XR service transmission.

Technical problems are as follows: simultaneous transmission of multiple XR traffic streams

To support an XR service, a user may need to receive or transmit packets of a number of different traffic flows, which have different characteristics, such as periodicity, packet size, transmission jitter, etc. This results in completely irregular data arriving at the base station side. To avoid delay in data transmission, the user may need to monitor the PDCCH all the time in order to receive or transmit the data packet in time, but this may cause excessive power consumption for the user, since the user does not have data to transmit and receive at any time. Thus, one technical problem is how to reduce the consumption of user energy while guaranteeing latency requirements when transmitting multiple XR data streams with different characteristics. In order to solve this problem, the present invention proposes the following method:

■ The method comprises the following steps: configuration of DRX to be employed by dynamic indication user

In the method, the base station provides the user with configuration information of a plurality of DRX, and the configuration information of each DRX comprises at least one of DRX cycle, offset, on duration timer, activity timer, RTT timer and retransmission timer, wherein specific content can be seen in the current DRX-Config. But what kind of configuration needs to be adopted at any moment, the base station informs the user through indication information, in one embodiment, the indication information can indicate the configuration information of the DRX required to be adopted by the user, the indication information indicates the configuration of all or part of parameters of the DRX required to be adopted by the user, in order to realize this mode, the base station can configure the configuration of multiple sets of DRX to the user through "DRX configuration information" in step 1-1, and indicates the configuration of the adopted DRX through "first configuration indication information" in step 1-3; in another embodiment, the indication information may indicate the configuration of a certain parameter (such as On duration, cycle, offset, activity timer, RTT timer, retransmission timer) in the DRX configuration information required to be adopted by the user, in order to implement this manner, the base station may configure multiple values of one timer for the user through the "first timer information" in step 1-1, and then indicate the initial value of the timer required to be adopted by the user through the "first time indication information" in step 1-3; in another embodiment, the indication information may indicate initial values of a plurality of timers required to be adopted by the user, where the plurality of timers may be the same type of timers, such as an inactivity timer, and may also be different types of timers, such as inactivity timer, on duration timer, so that, to implement this manner, the base station may configure multiple values of one timer for the user through the "first timer information" in step 1-1, and then indicate the values of a plurality of timers required to be adopted through the "second time indication information" in step 1-3.

■ The second method is as follows: configuration for dynamic adjustment of DRX by user

In the method, the base station provides the user with configuration information of a plurality of DRX, and the configuration information of each DRX comprises at least one of DRX cycle, offset, on duration timer, activity timer, RTT timer and retransmission timer, wherein specific content can be seen in the current DRX-Config. The configuration of DRX that the user needs to employ is determined by the user based on the grasped information. In this method, the user behaves differently from the prior art in performing DRX as follows:

■ Behavior 1: a primary DRX configuration (default DRX configuration) is determined. The primary DRX configuration is a configuration that triggers a user to enter DRX for Active time. Specifically, when the user is in the inactive time period (in the inactive state of DRX, i.e. the user does not need to monitor the PDCCH), if the user determines that starting on duration timer is required according to a piece of DRX configuration information obtained by the user, the DRX configuration is the configuration of the primary DRX. When the user cannot determine which DRX configuration parameter should be used during the Active time, the user starts a corresponding timer with the primary DRX configuration parameter. The primary DRX configuration is a configuration used by the user during the Active time, and when the user enters the Active time again, the user needs to re-determine the primary DRX configuration. Thus, the user's primary DRX configuration may be dynamically changed.

■ Behavior 2: the user updates the running timer. As described in act 1, if the user were to start a timer, but did not know which parameters in the DRX configuration to use to set the initial value, the user would use the parameters in the primary DRX configuration to set. Then, if the user can determine the parameters to be used (e.g., when the user determines the parameters of the DRX configuration to be used according to the service to which the received data packet belongs, e.g., when the user determines the parameters of the DRX configuration to be used according to the identification information of the logical channel included in the data packet, or the identification information of the logical channel group, or the identification information of the QoS flow, the identification information of the PDU session, and the identification information of the DRB), the user can update the running timer with the parameters of the DRX configuration determined by the user (if the DRX configuration determined by the user has a plurality of DRX configurations, the user updates the parameters with the maximum value or the minimum value of the parameters in the plurality of configurations). The updated timer may be at least one of On duration timer, an activity timer, an RTT timer, and a retransmission timer. In contrast to the prior art, this behavior defines a new method of updating the timer, i.e. after the user determines the DRX configuration to be used (e.g. determines the corresponding DRX configuration from the transmitted data), it may update the initial value of the running timer with the parameters in the determined DRX configuration (if the user determines a plurality of applicable DRX configurations, the user updates with the maximum or minimum of the parameters in the plurality of configurations), and further, may update the initial value of the timer when the parameter value in the determined DRX configuration is greater or less than the remaining time of the running timer.

■ Behavior 3: the user restarts the running timer, which may be at least one of On duration timer, inactivity timer, RTT timer, retransmission timer. For example, after starting on duration timer with the primary DRX configuration, if on duration timer of another DRX configuration (DRX configuration 2) can be started during its operation and its initial value is greater than or less than the remaining value of on duration timer currently being operated, the user can restart on duration timer and use the value of on duration timer in DRX configuration 2 as the initial value, in one example, after starting the inactivity timer with the primary DRX configuration, if during its operation, the user determines the configuration of the DRX (e.g., DRX configuration 2) corresponding to the data packet currently being transmitted and the initial value of the inactivity timer of DRX configuration 2 is greater than or less than the initial value of the inactivity timer currently being operated, the user can restart the inactivity DRX 2 and take the value of the inactivity timer in DRX configuration 2 as the initial value. In contrast to the prior art, this action defines a condition of restarting the timer, that is, after the user determines the DRX configuration corresponding to the transmitted data (e.g., the user determines the parameters of the DRX configuration that should be adopted by the user according to the service to which the received data packet belongs, e.g., the parameters of the determined DRX configuration are determined according to the identification information of the logical channel included in the data packet, the identification information of the logical channel group, the identification information of the QoS flow, the identification information of the PDU session, and the identification information of the DRB), the user may restart the timer with the parameters in the determined DRX configuration (if the user determines multiple applicable DRX configurations, the user restarts the timer with the maximum value of the parameters in the multiple configurations, and further, the user may restart the timer with the new configuration when the parameters in the determined DRX configuration are greater than or less than the remaining time of the currently running timer.

The three above-described behaviors are described below in three examples:

fig. 5: the selection of the DRX master configuration (default DRX configuration), in the figure, the user is configured with configuration information for two DRX, namely DRX configuration 1 and DRX configuration 2. At time point 1, the user determines On duration timer that starting is needed according to the parameters in DRX configuration 1, and the user takes DRX configuration 1 as a main configuration

Fig. 6: updating the timer. At time point 1, the user receives a scheduling information (DCI) for scheduling a new transmission, and the user cannot determine the DRX configuration corresponding to the new transmission, so the user starts the activity timer with a parameter (activity timer 1) in the primary DRX configuration. Subsequently, at time point 2, the user receives the newly transmitted data packet, and the user may determine the configuration of DRX according to information in the data packet (such as the identification information of the logical channel, or the identification information of the logical channel group, or the identification information of the QoS flow, the identification information of the PDU session, and the identification information of the DRB), and then in one embodiment, as shown in fig. 6 (a), the user updates the active timer in the determined configuration of DRX with the active timer2, that is, the active timer2 is taken as an initial value of the timer, and then subtracts the time that the timer has been operated (that is, the time difference between time point 1 and time point 2); in another embodiment, as shown in fig. 6 (b), the user directly restarts the inactivity timer with inactivity timer2, in another embodiment, as shown in fig. 6 (c), if the packet contained in the new transmission corresponds to multiple DRX configurations, the user updates the timer with the maximum or minimum value of the inactivity timer in those configurations, and in another embodiment, as shown in fig. 6 (d), if the packet contained in the new transmission corresponds to multiple DRX configurations, the user restarts the timer with the maximum or minimum value of the inactivity timer in those configurations

Fig. 7: restarting the timer. At time point 1, the user initiates On duration timer with DRX configuration 1 as the primary configuration, at time point 2, the user determines On duration timer that DRX configuration 2 needs to be initiated based on the parameters in DRX configuration 2, but On duration timer is still running at this time, in one embodiment, as in fig. 7 (a), the user may restart On duration timer with the parameters in DRX configuration 2, in another embodiment, as in fig. 7 (b), the user may compare the time remaining in current operation on duration timer with the settings of On duration timer in DRX configuration 2, if the former is greater (or less) than the latter, the user may not restart current operation On duration timer, if the former is less (or greater) than the latter, the user may restart on duration timer with the value of on duration timer in DRX configuration 2, in another embodiment, if, as in fig. 7 (c), at time point 2, the condition for start of both DRX configurations (DRX configuration 2 and DRX configuration 3) is satisfied, the user will restart the timer with the maximum or minimum value of On duration timer of DRX configuration 2 and On duration timer of DRX configuration 3, in another embodiment, as in fig. 7 (d), if, at time point 2, the condition for start of both DRX configurations (DRX configuration 2 and DRX configuration 3) On duration timer is satisfied, the user will decide whether to restart the timer with the maximum or minimum value of On duration timer of DRX configuration 2, on duration timer of DRX configuration 3, and the maximum or minimum value of the remaining time of on duration timer currently running (e.g., the maximum or minimum value is the remaining time of the currently running timer, the timer need not be restarted, otherwise the timer is restarted at either the maximum or minimum value).

■ And a third method: default DRX configuration

In the method, the base station provides configuration information of a plurality of DRX for the user, the configuration information of each DRX comprises at least one of DRX cycle, offset, on duration timer, activity timer, RTT timer and retransmission timer, the specific content can be see the current DRX-Config, and the base station indicates which DRX configuration is the default configuration (or main configuration), as indicated by the indication information of the default configuration (or main configuration) in the DRX configuration information of step 1-1. When the user does not determine the DRX configuration corresponding to the transmitted data, the user performs DRX with the default configuration (or primary configuration). Different from the behavior in the second method, the user does not need to dynamically determine the primary DRX configuration, and the primary configuration is fixed in the third method; in the second method, the configuration of the primary DRX is determined according to the configuration used when the user enters the Active time. Furthermore, the user behaves differently from the prior art in performing DRX as follows:

■ Behavior 4: the user updates the running timer. If the user can determine the parameters to be adopted (for example, when the user determines the parameters of the DRX configuration to be adopted according to the service to which the received data packet belongs, for example, the user determines the parameters of the DRX configuration to be adopted according to the identification information of the logical channel included in the data packet, the identification information of the logical channel group, the identification information of the QoS flow, the identification information of the PDU session, and the identification information of the DRB), the user can update the running timer with the determined parameters of the DRX configuration, which can be described specifically with reference to act 2 in the second method for solving the fourth technical problem.

■ Behavior 5: the user restarts the running timer, which may be at least one of On duration timer, inactivity timer, RTT timer, retransmission timer. The description of this behavior can be found in behavior 3 in method two which solves technical problem four.

■ The method four: configuration for dynamically indicating user to monitor PDCCH

In the method, the base station informs the user of the configuration required by DRX monitoring, such as the time for starting PDCCH monitoring, how long to monitor, what DRX configuration is adopted for monitoring, what parameters are adopted for starting a timer, and the like, through the indication dynamically sent to the user. To implement this method, the base station configures multiple configurations for the user, such as one or more of "third configuration information", "first timer information", and "DRX configuration information", in step 1-1, and then sends dynamic indications, such as one or more of "first time indication information", "second time indication information", "first configuration indication information", and "second configuration indication information", to the user in step 1-3.

The method has the advantages that the user can dynamically update the DRX configuration adopted by the user according to the configuration and/or the service corresponding to the data packet transmitted by the user, and the energy-saving effect which can adapt to the data service is a time delay effect.

Third aspect: configuration of network side

In order to perform the configuration of the first aspect described above for the user, some configuration may also be required on the network side. The network side needs to have a certain grasp on the characteristics of the XR service, so as to help the network side to perform the configuration of the first aspect. However, when the base station side adopts the CU-DU separation structure or the CP-UP separation structure, the configuration of the user is responsible for different entities, and interaction between the different entities is required to implement the configuration of the first aspect. In the scheme, different network side interaction methods are provided according to different entities grasping XR service characteristics.

In the following description, a CU may include a CU-CP and one or more CU-UPs, and may also be an entity. When only a CU is included in the description, the CU may be an entity, a CU-CP constituting the CU, or a CU-UP constituting the CU.

The method comprises the following steps: obtaining XR service characteristics through CU-UP

In this method, the CU-UP needs to provide characteristic information of XR service to the CU-CP as shown in FIG. 8

Step 3-1-1: the CU-UP sends a second auxiliary message to the CU-CP, the message including at least one of the following information:

■ Service characteristic related information, which includes at least one of the following information for a service:

■ Cycle information

■ Information of jitter, such as mean value of jitter, variance of jitter, mean square error of jitter, etc. ■ burst size information, such as mean value of data size of one burst, maximum value of data size, minimum value of data size, variance of data size, mean square error of data size, etc

The information has the beneficial effects of helping the CU-CP to obtain the service characteristics of the user and forwarding the information to other nodes, thereby helping the other nodes to generate configuration information suitable for data receiving and transmitting of the user service and reducing the energy consumption of the user.

Step 3-1-2: the CU (-CP) sends a third auxiliary message to the DU, the message including at least one of the following information:

■ Business trait related information including at least one of:

■ Cycle information

The information has the beneficial effects of helping the DU to obtain the service characteristics of the user, thereby helping the DU to generate the configuration information suitable for data transceiving of the user service and reducing the energy consumption of the user.

■ Recommended configuration information indicating a configuration recommended by the CU (-CP) according to the service characteristics, the user possibly providing one or more sets of configurations, for which the information includes at least one of the following information:

The information has the beneficial effects of helping DU generate configuration information suitable for data transceiving of user service and reducing user energy consumption.

The second method is as follows: acquiring XR service characteristics through DU

In this method, the DU generates a suitable configuration according to the data characteristics of the XR service, and then the DU sends the configuration to other network entities (such as CU-UP), so that the other network entities adjust the sending of the data according to the configuration. The method comprises the following steps, as shown in fig. 9:

Step 3-2-1: the DU sends a fourth auxiliary message to the CU (-CP), the message including at least one of the following information:

■ Fourth configuration information indicating a DU generated configuration, possibly containing one or more sets of configurations, including at least one of the following information for a set of configurations:

■ The configuration information of the signals, the signals for which may be WUS signals, PEI signals, the specific content of which can be seen from the configuration of the WUS signals or the configuration of the PEI signals (such as period, offset, etc.)

The information has the beneficial effects of helping the CU (-CP) to obtain the configuration related to the user service and forwarding the configuration to other nodes, thereby reducing the energy consumption of the user.

Step 3-2-2: the CU-CP sends a fifth assistance message to the CU-UP, the message including at least one of the following information:

■ Fifth configuration information indicating a DU generated configuration, possibly containing one or more sets of configurations, including at least one of the following information for a set of configurations:

After receiving the information, the CU-UP can send data according to the information, for example, before the user starts PDCCH monitoring, the CU-UP sends the data to the DU, so that the energy consumption of the user is reduced.

And a third method: acquiring XR service characteristics through CU or CU-CP

In this method, the CU (-CP) takes the data characteristics of the XR service (in one embodiment, the CU (-CP) is the information obtained from the core network, in another embodiment, the CU (-CP) is obtained from the UE, as obtained by steps 1-0 of the first aspect above), and generates the appropriate configuration to send the configuration to other entities. The method comprises the following steps, as shown in fig. 10:

Step 3-3-1: the CU (-CP) sends a sixth assistance message to the DU and/or CU-UP, the message including at least one of the following information:

■ Sixth configuration information indicating the configuration generated by the DU, possibly including one or more sets of configurations, for a set of configurations, including at least one of the following information:

■ Configuration information of the search space, including configuration of the PDCCH search space, such as period, offset, duration, type of DCI, aggregation level, etc., and specific contents can be seen from the current configuration of search space

After receiving the information, the CU-UP/DU can send data according to the information, for example, before the user starts PDCCH monitoring, the CU-UP/DU sends the data to the DU, so that the energy consumption of the user is reduced.

In the above method, the second auxiliary message may be bearer context modification required/response message or other message of the E1 interface

The third auxiliary message may be a UE context setup/modification request message of F1 interface, or other message

The fourth auxiliary message may be UE context modification response/required message of F1 interface or other message

The fifth auxiliary message may be bearer context setup/modification request message of E1 interface or other message

The sixth auxiliary message may be UE context setup/modification request message of F1 interface, bearer context setup/modification request message of E1 interface, or other message

The beneficial effects of the above-mentioned flow are: the network side can obtain the characteristics of the XR service, generate the configuration of the user receiving signal (such as monitoring PDCCH) which is suitable for the XR service, and adjust the sending of the data packet according to the configuration, thereby saving the energy consumption of the user and reducing the time delay of the XR service transmission.

Fig. 10 illustrates a method performed by a first node according to an embodiment of the present disclosure. In the method, the first node receives a first message from the second node determined based on traffic characteristics of the first node, wherein the first message includes information related to the traffic characteristics of the first node, in step 1010.

In step 1020, the first node transmits and receives signals based on the first information.

According to another aspect of the present disclosure, there is provided a node apparatus in a wireless communication system, comprising: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform operations in the method performed by the second node.

Those skilled in the art will appreciate that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may be combined in any combination. In addition, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are contemplated herein.

Those of skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and steps described herein may be implemented as hardware, software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such design decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various illustrative logical blocks, modules, and circuits described herein may be implemented or performed with a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more exemplary designs, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the application, which is defined by the appended claims.

Claims

1. A method performed by a first node in a wireless communication system, comprising:

receiving a first message from a second node, wherein the first message is determined based on information related to traffic characteristics of the first node; and

and transmitting and receiving data and/or signals based on the first message.

2. The method of claim 1, wherein the first message comprises at least one of the following information:

the first numbering information is used for indicating the number of the system frame;

second number information indicating system frame number information of a reference;

the transmission period information is used for indicating period related information related to data and/or signal receiving and transmitting of the first node;

first information for indicating configuration information related to data and/or signal transmission/reception by the first node;

third configuration information, configured to indicate configuration information related to physical downlink shared channel PDCCH monitoring by the first node;

the first timer information is used for indicating configuration information related to a first timer, and the first timer is corresponding time or configured conversion time when the first node transmits and receives data and/or signals;

Second timer information for indicating configuration information related to a second timer, wherein the second timer is a configured use time corresponding to the first node when transmitting and receiving data and/or signals;

discontinuous reception, DRX, configuration information indicating configuration information related to DRX by the first node.

3. The method of claim 2, wherein the transmission period information comprises at least one of:

the first period information is used for indicating information related to a first period, and the first period is a period corresponding to data and/or signals carried out by the first node;

first offset information indicating offset information related to the first period;

second period information indicating second period-related information used in the first period; and

and second offset information indicating offset information related to the second period.

4. The method of claim 2 or 3, wherein,

the first information includes at least one of the following:

signal monitoring configuration information for indicating configuration information related to a monitored signal;

the trigger indication information is used for indicating the first node to trigger and/or start the time for receiving and transmitting the data and/or signals configured by the signal monitoring configuration information; and

Trigger timer information for indicating to trigger and/or start a timer associated with the transmission and reception of data and/or signals configured by the signal listening configuration information.

5. The method according to claim 2 to 4, wherein,

the third configuration information includes a plurality of sets of configuration information, wherein each set of configuration information includes at least one of: monitoring the starting offset time; the length of time of monitoring; and first status indication information for indicating whether the group of configurations is in an active state;

and/or

The third configuration information includes second status indication information indicating whether one or more of the plurality of sets of configuration information is in an active state.

6. The method according to claim 2 to 5, wherein,

the first timer information includes a configuration of one or more length information, and for each configuration of length information, the first timer information includes at least one of: first timer length information; first condition information indicating condition information related to the start or restart of the first timer; the step-down information is used for indicating the step-down related information of the initial length of the timer, which is set when the first timer is started or restarted, and/or the step-down of the timer when the timer is decreased; first application information for indicating information related to an application range of one or more pieces of information included in the first timer information; and third state indication information for indicating whether a configuration for the length information is in an active state;

And/or

The first timer information comprises fourth state indication information for indicating whether one or more sets of length information in the configuration of the sets of length information are in an activated state;

and/or

The second timer information includes at least one of the following information: second timer length information; second applicability information indicating information related to an applicability range of one or more pieces of information included in the second timer information; and status indication information for indicating whether the second timer information is in an activated state.

7. The method according to claim 2 to 6, wherein,

the DRX configuration information includes one or more sets of configuration information regarding DRX, each set of configuration information regarding DRX including at least one of the following information:

the first configuration DRX information comprises configuration of parameters for DRX; application range information indicating an application range of the first configuration DRX information; fifth state indication information for indicating whether the group configuration is in an active state; and indication information of default configuration, which indicates whether the first configuration DRX information is the default configuration;

and/or

The DRX configuration information includes sixth state indication information indicating whether one or more of the plurality of sets of configuration information regarding DRX are in an active state.

8. The method of any of claims 1 to 7, further comprising:

the first node receives a second message from the second node, wherein the second message includes information related to a traffic characteristic of the first node;

wherein, the receiving and transmitting data and/or signals based on the first message includes: the first node transmits and receives data and/or signals based on the first message and the second message.

9. The method of claim 8, wherein the second message includes at least one of the following information:

a first start indication information for indicating whether the first node starts a configuration related to a specific search space;

the first stop indication information is used for indicating whether the first node stops receiving and transmitting data and/or signals or not;

first time indication information for indicating information related to the first node starting or restarting a timer;

second time indication information for indicating information related to the first node starting or restarting the plurality of timers;

first configuration indication information for indicating DRX-related configuration with respect to a first node; and

and the second configuration indication information is used for indicating the configuration related to the PDCCH monitoring by the first node.

10. The method of any one of claims 1 to 9, further comprising:

the first node transmits at least one of information related to traffic characteristics of the first node and configuration information that the first node desires to transmit and receive with respect to data and/or signals to the second node.

11. A node apparatus in a wireless communication system, comprising:

a transceiver; and

a processor coupled with the transceiver and configured to perform the method of any of claims 1-10.

12. A method performed by a second node in a wireless communication system, comprising:

determining a first message based on information related to traffic characteristics of the first node; and

a first message is sent to a first node.

13. The method of claim 12, further comprising:

information related to a traffic characteristic of the first node is received from a core network device or a user equipment.

14. The method of claim 12 or 13, further comprising:

determining a second message based on information related to traffic characteristics of the first node; and

the second message is sent to the first node.

15. A node apparatus in a wireless communication system, comprising:

a transceiver configured to transmit and receive signals; and

A controller coupled with the transceiver and configured to perform the operations in the method of any one of claims 12 to 14.