CN117241413A

CN117241413A - Method and apparatus in a communication node for wireless communication

Info

Publication number: CN117241413A
Application number: CN202210628489.1A
Authority: CN
Inventors: 于巧玲; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2023-12-15

Abstract

A method and apparatus in a communication node for wireless communication is disclosed. The communication node receives a first message, wherein the first message indicates entering or maintaining an RRC inactive state; transmitting a second message, the second message being used to request data transmission in the RRC inactive state; restoring each radio bearer in a first set of radio bearers associated with whether the second message is triggered by a higher layer of an RRC layer or by a third message, with the second message; if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used to instruct the first node to perform data transmission in the RRC inactive state.

Description

Method and apparatus in a communication node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for small data.

Background

The NR (New Radio, new air interface) supports RRC (Radio Resource Control ) Inactive (RRC_INACTIVE) RRC state until release 3GPP (the 3rd Generation Partnership Project, third Generation partnership project) Rel-16 does not support transmitting or receiving data in RRC Inactive state. Rel-17 developed a "NR inactive state small data transfer (Small Data Transmission, SDT)" Work Item (WI), and a corresponding technical specification was formulated for MO (UL) SDT, allowing small data packet transfer (small packet transmission) of Uplink (UL-oriented) packets to be sent in RRC inactive state. To reduce power consumption, reduce signaling overhead, shorten latency, rel-18 establishes an "MT (DL) -SDT (Mobile Terminated-Small Data Transmission)" work item, studies the trigger mechanism of MT-SDT, and supports RA (random access) -SDT and CG-SDT as uplink responses, and studies the MT-SDT procedure for initial Downlink data reception (initial DL data reception) and subsequent uplink or Downlink data transmission (subsequenct UL/DL data transmissions) in RRC inactive state.

Disclosure of Invention

In the existing protocol, when the UE receives a Paging (Message) in an RRC inactive state, the UE initiates an RRC connection Resume (Resume) procedure in response to receiving the Paging Message, and sends an RRC connection Resume request Message in the RRC Resume procedure. For the RRC connection recovery procedure triggered by the paging message, the UE can perform downlink data reception only if it receives the RRC connection recovery message and recovers all Radio bearers (Radio bearers). For MT-SDT, one possible solution to shorten the delay is to recover the radio bearer for MT-SDT in advance, and the base station sends the downlink data in advance. The base station cannot determine whether the UE has recovered the radio bearer for the MT-SDT according to the existing RRC connection recovery request message, thereby affecting the initial downlink data transmission. Therefore, for MT-SDT, the RRC connection recovery procedure needs to be enhanced.

In view of the above problems, the present application provides a solution for small data packet transmission. In the description for the above problems, an NR system is taken as an example; the application is equally applicable to the scenarios of e.g. LTE systems; further, although the present application is specifically implemented for MT-SDT (Small Packet Transmission ) in RRC (Radio Resource Control, radio resource control) inactive state, the present application can be used in a scenario such as Multicast MBS (Multicast/Broadcast Service) in RRC inactive state, to achieve technical effects similar to MT-SDT in RRC inactive state. Further, while the present application is initially directed to Uu air interfaces, the present application can also be used for PC5 interfaces. Further, although the present application is initially directed to a terminal and base station scenario, the present application is also applicable to a V2X (Vehicle-to-internet) scenario, a communication scenario between a terminal and a relay, and a communication scenario between a relay and a base station, and similar technical effects in the terminal and base station scenario are obtained. Further, although the present application is initially directed to the terminal and base station scenario, the present application is also applicable to the communication scenario of IAB (Integrated Access and Backhaul ), and achieves similar technical effects in the terminal and base station scenario. Further, although the present application is initially directed to a terrestrial network (Terrestrial Network ) scenario, the present application is equally applicable to a Non-terrestrial network (Non-Terrestrial Network, NTN) communication scenario, achieving similar technical effects in a TN scenario. Furthermore, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

As an embodiment, the explanation of the term (terminalogy) in the present application refers to the definition of the 3GPP specification protocol TS 36 series.

As an embodiment, the explanation of the terms in the present application refers to the definition of the 3GPP specification protocol TS 38 series.

As an embodiment, the explanation of the terms in the present application refers to the definition of the specification protocol TS 37 series of 3 GPP.

As an example, the explanation of terms in the present application refers to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers ).

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

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

receiving a first message indicating entry into or maintenance in an RRC inactive state;

transmitting a second message, the second message being used to request data transmission in the RRC inactive state;

Restoring each radio bearer in a first set of radio bearers associated with whether the second message is triggered by a higher layer of an RRC layer or by a third message, with the second message;

wherein the phrase whether the first set of radio bearers is triggered by a higher layer of an RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As one embodiment, the problems to be solved by the present application include: how to determine the radio bearer to be used for the SDT.

As one embodiment, the problems to be solved by the present application include: how to implement flexible SDT configuration.

As one embodiment, the problems to be solved by the present application include: how to reduce state transitions.

As one embodiment, the problems to be solved by the present application include: how to reduce the impact on the protocol.

As one embodiment, the features of the above method include: at least whether the second message is triggered by a higher layer of the RRC layer or by a third message is used to determine the first set of radio bearers.

As one embodiment, the features of the above method include: the radio bearer recovered when the second message is triggered by at least the third message and the radio bearer recovered when the second message is triggered by at least the upper layer of the RRC layer may be different.

As one embodiment, the features of the above method include: at least one radio bearer of the first node can be restored if the second message is triggered by at least the third message even if the first message does not indicate a radio bearer used for SDT.

As one example, the benefits of the above method include: MT-SDT and MO (UL) -SDT can configure different radio bearers, enabling flexible SDT configuration.

As one example, the benefits of the above method include: state transitions are reduced.

As one example, the benefits of the above method include: MT-SDT multiplexes MO-SDT procedure as much as possible, and reduces the influence on protocol.

According to one aspect of the present application, it is characterized by comprising:

receiving the third message in the RRC inactive state;

wherein the second message is triggered by the third message.

According to an aspect of the application, it is characterized in that all DRBs ((user) Data Radio Bearer, (user) data radio bearers) of the first node are included in the first set of radio bearers if the second message is triggered by at least the third message.

According to an aspect of the application, it is characterized in that if the second message is triggered by at least the third message, the third message indicates at least one radio bearer of the first set of radio bearers.

after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or the second information is related to whether a given condition set is met or not;

wherein the first message indicates a second set of radio bearers; the second message is triggered by the third message; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

if each condition in the given set of conditions is met, with the fourth message, recovering each radio bearer in the second set of radio bearers that is suspended.

starting or restarting the first timer with the fourth message;

monitoring a fifth message during operation of the first timer;

wherein the fifth message is used to determine to stop the first timer.

after the second message is triggered by the third message, a first MAC (MediumAccess Control, media access Control) CE (Control Element) is sent as a response to the presence of the first uplink data, where the first MAC CE indicates at least the size of the first uplink data.

after the second message is triggered by the third message, sending a fourth message or sending a first MAC CE as a response to the presence of the first uplink data, whether the fourth message is sent or the first MAC CE is sent in relation to whether a given set of conditions is met;

Wherein the first message indicates a second set of radio bearers; the second message is triggered by the third message; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase whether the fourth message is sent or the first MAC CE is sent in relation to whether a given set of conditions is met includes: if each condition in the given set of conditions is met, the first MAC CE is transmitted; if at least one condition of the given set of conditions is not met, the fourth message is sent; the fourth message is an RRC message; the first MAC CE indicates at least a size of the first upstream data; the second set of radio bearers includes at least one radio bearer therein.

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

transmitting a first message indicating entry into or maintenance in an RRC inactive state;

receiving a second message, wherein the second message is used for requesting data transmission in the RRC inactive state;

Wherein each radio bearer in a first set of radio bearers is recovered with the second message, the first set of radio bearers being related to whether the second message is triggered by a further upper layer of an RRC layer or by a third message; the phrase whether the first set of radio bearers is triggered by a further upper layer of the RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the receiver of the first message to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

sending the third message;

wherein the third message is received by a recipient of the first message in the RRC inactive state; the second message is triggered by the third message.

According to an aspect of the application, it is characterized in that if the second message is triggered by at least the third message, all DRBs of the receiver of the first message are included in the first set of radio bearers.

receiving a fourth message, the fourth message comprising either first information or second information, the fourth message comprising whether the first information or the second information relates to whether a given set of conditions is met;

wherein after the second message is triggered by the third message, the fourth message is sent by the recipient of the first message; the presence of first uplink data is used to trigger the fourth message; the first message indicates a second set of radio bearers; the second message is triggered by the third message; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

According to an aspect of the application, each radio bearer in the second set of radio bearers is resumed by the receiver of the first message accompanying the fourth message if each condition in the given set of conditions is satisfied.

determining whether to send a fifth message;

wherein during operation of a first timer, the fifth message is listened to by a recipient of the first message; with the fourth message, the first timer is started by or restarted by the recipient of the first message; the fifth message is used to determine to stop the first timer.

The application discloses a first node used for wireless communication, which is characterized by comprising the following components:

a first receiver that receives a first message indicating entry into or maintenance in an RRC inactive state;

a first transmitter that transmits a second message, the second message being used to request data transmission in the RRC inactive state;

a first processor, accompanying the second message, to recover each radio bearer in a first set of radio bearers, the first set of radio bearers being related to whether the second message is triggered by a further upper layer of an RRC layer or by a third message;

The present application discloses a second node used for wireless communication, which is characterized by comprising:

a second transmitter that transmits a first message indicating entry into or maintenance in an RRC inactive state;

a second receiver for receiving a second message, the second message being used to request data transmission in the RRC inactive state;

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

implementing flexible SDT configuration;

reducing state transitions;

reducing the impact on the protocol;

shorten transmission delay;

reducing power consumption;

reducing the signalling overhead.

receiving a first message indicating entry into or maintenance in an RRC inactive state; receiving a third message in the RRC inactive state, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state;

transmitting a second message, wherein the second message is used for requesting data transmission in the RRC inactive state, and the second message is triggered by the third message; restoring each radio bearer in the first set of radio bearers along with the second message; after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or the second information is related to whether a given condition set is met or not;

Wherein one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

As one embodiment, the problems to be solved by the present application include: in the MT-SDT procedure, if there is uplink data, how to indicate to the base station.

As one embodiment, the problems to be solved by the present application include: in said second procedure in the present application, how to indicate to the base station if there is uplink data.

As one embodiment, the problems to be solved by the present application include: how to shorten the transmission delay.

As one embodiment, the problems to be solved by the present application include: how to reduce power consumption.

As one embodiment, the features of the above method include: determining whether the fourth message includes the first information or the second information based on at least one of whether the first uplink data is associated with a second set of radio bearers or whether a size of the first uplink data is not greater than a first threshold.

As one embodiment, the features of the above method include: indicating sufficient information to the base station to assist the base station in making decisions.

As one embodiment, the features of the above method include: the base station determines whether to transition the UE to the RRC connected state or to remain in the RRC inactive state according to the first information or the second information.

As one example, the benefits of the above method include: if each condition in the given condition set is satisfied, the first node can keep transmitting uplink data in an RRC inactive state, so that transmission delay is shortened.

As one example, the benefits of the above method include: if each condition in the given condition set is met, the first node can keep transmitting uplink data in the RRC inactive state, and does not need to switch to the RRC connection state, so that power consumption is reduced.

As one example, the benefits of the above method include: if each condition in the given condition set is met, the first node can keep transmitting uplink data in the RRC inactive state, and does not need to switch to the RRC connection state, so that signaling overhead is reduced.

starting or restarting the first timer with the fourth message;

monitoring a fifth message during operation of the first timer;

wherein the fifth message is used to determine to stop the first timer.

According to an aspect of the application, the first message indicates the second set of radio bearers.

According to an aspect of the application, the third message indicates at least one radio bearer of the first set of radio bearers.

According to an aspect of the application, the first set of radio bearers includes all DRBs of the first node.

According to an aspect of the application, the first set of radio bearers is the second set of radio bearers.

transmitting a first message indicating entry into or maintenance in an RRC inactive state; transmitting a third message, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state;

receiving a second message, wherein the second message is used for requesting data transmission in the RRC inactive state, and the second message is triggered by the third message; receiving a fourth message, the fourth message comprising either first information or second information, the fourth message comprising whether the first information or the second information relates to whether a given set of conditions is met;

wherein the third message is received by a recipient of the first message in the RRC inactive state; after the second message is triggered by the third message, the fourth message is sent by the receiver of the first message; the presence of first uplink data is used to trigger the fourth message; one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; each radio bearer in the first set of radio bearers is recovered by a recipient of the first message with the second message; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

determining whether to send a fifth message;

a first receiver that receives a first message indicating entry into or maintenance in an RRC inactive state; receiving a third message in the RRC inactive state, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state;

a first transmitter for transmitting a second message, the second message being used for requesting data transmission in the RRC inactive state, the second message being triggered by the third message; restoring each radio bearer in the first set of radio bearers along with the second message; after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or the second information is related to whether a given condition set is met or not;

a second transmitter that transmits a first message indicating entry into or maintenance in an RRC inactive state; transmitting a third message, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state;

a second receiver for receiving a second message, the second message being used to request data transmission in the RRC inactive state, the second message being triggered by the third message; receiving a fourth message, the fourth message comprising either first information or second information, the fourth message comprising whether the first information or the second information relates to whether a given set of conditions is met;

wherein the third message is received by a recipient of the first message in the RRC inactive state; after the second message is triggered by the third message, the fourth message is sent by the receiver of the first message; the presence of first uplink data is used to trigger the fourth message; one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

shorten transmission delay;

reducing power consumption;

reducing the signalling overhead.

As an embodiment, the suspension in the present application means suspend.

As an embodiment, the suspension in the present application means suspension.

As an embodiment, the recovery in the present application means resume.

As an embodiment, the restoration in the present application means continuation.

As an embodiment, the restoration in the present application means restarting.

As an embodiment, the upper layer of the RRC layer in the present application is a protocol layer above the RRC layer.

As one embodiment, the upper layer of the RRC layer in the present application includes an IP (Internet Protocol ) layer.

As one embodiment, the upper layer of the RRC layer in the present application includes an Application (Application) layer.

As one embodiment, the upper layer of the RRC layer in the present application includes a NAS (Non-access stratum) layer.

As an embodiment, the lower layer of the RRC layer in the present application is a protocol layer below the RRC layer.

As an embodiment, the lower layer of the RRC layer in the present application includes at least one of a PDCP layer or an RLC layer or a MAC layer or a PHY layer.

As an embodiment, the identification of a DRB in the present application is DRB-Identity.

As one example, the Identity of an SRB in the present application is SRB-Identity.

As an embodiment, the Identity of a multicast MRB in the present application is MRB-Identity.

As an embodiment, each radio bearer in the first set of radio bearers in the present application is configured before the first message is received.

As an embodiment, each radio bearer in the first radio bearer set in the present application is configured by any one of RRCSetup or rrcresum or rrcrecon configuration.

As an embodiment, each radio bearer in the first radio bearer set in the present application is configured by any one of an RRCSetup message or an rrcrenulate message or an rrcrenulation message or an rrcrenulate message.

As an embodiment, each radio bearer in the first set of radio bearers in the present application is configured by RadioBearerConfig IE.

As an embodiment, one radio bearer of the first radio bearer set in the present application is configured in an RRC connected state.

As an embodiment, one radio bearer in the first radio bearer set in the present application is configured when entering an RRC connected state.

As an embodiment, if at least one DRB is included in the first set of radio bearers in the present application, each DRB in the first set of radio bearers is configured by a DRB-ToAddMod, and an identifier (DRB-Identity) of each DRB is included in the DRB-ToAddMod.

As an embodiment, if the first radio bearer set in the present application includes SRB2, the SRB2 in the first radio bearer set is configured by SRB-ToAddMod, and the SRB-ToAddMod includes an identifier (SRB-Identity) of the SRB 2.

As an embodiment, if the first radio bearer set in the present application includes SRB2, SRB3 in the first radio bearer set is configured by SRB-ToAddMod, and the SRB-ToAddMod includes an identifier (SRB-Identity) of the SRB 3.

As an embodiment, if the first radio bearer set in the present application includes at least one multicast MRB, each multicast MRB in the first radio bearer set is configured by MRB-ToAddMod, and an Identity (MRB-Identity) of each multicast MRB is included in the MRB-ToAddMod.

Drawings

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

FIG. 1A illustrates a flow chart of the transmission of a first message and a second message according to one embodiment of the application;

FIG. 1B illustrates a flow chart of transmission of a first message, a second message, a third message, and a fourth message according to one embodiment of the application;

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

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

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

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

fig. 6 shows a wireless signal transmission flow diagram according to another embodiment of the application;

fig. 7 shows a wireless signal transmission flow chart according to yet another embodiment of the present application;

fig. 8 illustrates a second radio bearer set related radio signal transmission flow diagram in accordance with an embodiment of the present application;

Fig. 9 shows a first timer-related wireless signal transmission flow diagram according to one embodiment of the application;

fig. 10 shows a schematic diagram of all DRBs in a first set of radio bearers including a first node according to an embodiment of the application;

fig. 11 shows a schematic diagram of a third message indicating at least one radio bearer in a first set of radio bearers according to an embodiment of the application;

FIG. 12A illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the application;

FIG. 12B illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the application;

FIG. 13A shows a block diagram of a processing arrangement for use in a second node according to one embodiment of the application;

FIG. 13B shows a block diagram of a processing arrangement for use in a second node according to one embodiment of the application;

fig. 14 shows a transmission flow diagram of a first MAC CE according to an embodiment of the application;

fig. 15 shows a schematic diagram of a first MAC CE or a fourth message according to an embodiment of the application.

Detailed Description

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

Example 1A

Embodiment 1A illustrates a flow chart of the transmission of a first message and a second message according to one embodiment of the application, as shown in fig. 1A. In fig. 1A, each block represents a step, and it is emphasized that the order of the blocks in the drawing does not represent temporal relationships between the represented steps.

In embodiment 1A, a first node in the present application receives a first message indicating to enter or remain in an RRC inactive state in step 101A; in step 102A, a second message is sent, the second message being used to request data transmission in the RRC inactive state; restoring each radio bearer in a first set of radio bearers associated with whether the second message is triggered by a higher layer of an RRC layer or by a third message, with the second message; wherein the phrase whether the first set of radio bearers is triggered by a higher layer of an RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As one embodiment, a first message is received indicating entry into or maintenance in an RRC inactive state.

As a sub-embodiment of this embodiment, the first message is received in the RRC inactive state.

As a sub-embodiment of this embodiment, the first message is received in an RRC connected state.

As a sub-embodiment of this embodiment, as a response to the first message being received, all SRBs (Signalling Radio Bearer, signaling Radio bearers) other than SRB0 (Signalling Radio Bearer, signaling Radio Bearer 0) are suspended, all DRBs are suspended, and all Multicast (MBS Radio bearers) MRBs are suspended.

As a sub-embodiment of this embodiment, each radio bearer in the first set of radio bearers is suspended in response to the first message being received.

As a sub-embodiment of this embodiment, PDCP (Packet Data Convergence Protocol ) is instructed to be suspended (indicate PDCP suspend to lower layers of all DRBs) for all lower layers of the DRBs as a response to the first message being received.

As a sub-embodiment of this embodiment, the first message is received via SRB 1.

As a sub-embodiment of this embodiment, the first message is transmitted on DCCH (Dedicated Control Channel, dedicated control signaling).

As a sub-embodiment of this embodiment, the first message comprises at least one RRC IE (Information Element ).

As a sub-embodiment of this embodiment, the first message includes at least one RRC domain (Field).

As a sub-embodiment of this embodiment, the first message is an RRCRelease message.

As a sub-embodiment of this embodiment, the first message is used to determine to enter the RRC inactive state if the first message is in an RRC CONNECTED (rrc_connected) state before the first message is received.

As a sub-embodiment of this embodiment, the first message is used to determine to remain in the RRC inactive state if the first message is in the RRC inactive state before the first message is received.

As a sub-embodiment of this embodiment, the RRC inactive state is entered as a response to the first message being received.

As a sub-embodiment of this embodiment, the RRC inactive state is maintained as a response to the first message being received.

As a sub-embodiment of this embodiment, the first node is in the RRC inactive state in response to the first message being received.

As a sub-embodiment of this embodiment, the first message instructs the first node to enter or remain in the RRC inactive state.

As a sub-embodiment of this embodiment, the first message includes a target RRC domain, and the first message includes that the target RRC domain is used to indicate entering or maintaining in the RRC inactive state.

As a sub-embodiment of this embodiment, the first message includes that a target RRC domain is used to determine to enter or remain in the RRC inactive state.

As a sub-embodiment of this embodiment, if the first message includes a target RRC domain, the first node is instructed to enter or remain in the RRC inactive state.

As a sub-embodiment of this embodiment, the target RRC domain includes a subspeconfig domain.

As a sub-embodiment of this embodiment, the target RRC domain is a susposcon domain.

As a sub-embodiment of this embodiment, the target RRC domain is the susposcon fig1 domain.

As a sub-embodiment of this embodiment, the target RRC domain is the susposcon fig2 domain.

As a sub-embodiment of this embodiment, the target RRC domain includes at least one RRC domain.

As a sub-embodiment of this embodiment, the target RRC domain includes at least one RRC IE.

As a sub-embodiment of this embodiment, the target RRC domain belongs to the first message.

As a sub-embodiment of this embodiment, the target RRC domain is all or part of the first message.

As a sub-embodiment of this embodiment, the target RRC domain is an RRC domain in the first message.

As an embodiment, a second message is sent, which is used to request data transmission in the RRC inactive state.

As a sub-embodiment of this embodiment, the second message is used to request uplink data transmission in the RRC inactive state.

As a sub-embodiment of this embodiment, the second message is used to request downlink data transmission in the RRC inactive state.

As a sub-embodiment of this embodiment, the second message is used to request data transmission using the first set of radio bearers in the RRC inactive state.

As a sub-embodiment of this embodiment, the second message is handed over by the RRC layer of the first node to a lower layer of the RRC layer of the first node.

As a sub-embodiment of this embodiment, the content in the second message is set before the second message is handed over by the RRC layer of the first node to a further lower layer of the RRC layer of the first node.

As a sub-embodiment of this embodiment, the second message includes at least the RRC connection resume request message.

As a sub-embodiment of this embodiment, the second message is the RRC connection resume request message.

As a sub-embodiment of this embodiment, the second message is an RRC message.

As a sub-embodiment of this embodiment, the second message comprises at least an RRC message.

As a sub-embodiment of this embodiment, the second message includes at least one RRC IE.

As a sub-embodiment of this embodiment, the second message comprises at least one RRC domain.

As a sub-embodiment of this embodiment, the second message is transmitted over CCCH (Common Control Channel ) and the RRC connection resume request message is an rrcresemerequest message.

As a sub-embodiment of this embodiment, the second message is transmitted over CCCH1 (Common Control Channel, common control channel 1) and the RRC connection resume request message is a rrcresmerequest 1 message.

As a sub-embodiment of this embodiment, the second message is transmitted over CCCH2 (Common Control Channel, common control channel 2) and the RRC connection resume request message is a rrcresmerequest 2 message.

As a sub-embodiment of this embodiment, the second message is transmitted over SRB0 (Signalling Radio Bearer, signaling radio bearer 0).

As a sub-embodiment of this embodiment, the second message includes a resumeidedensity field, which is set to a bit string.

As a sub-embodiment of this embodiment, the above-mentioned one bit string is a shortI-RNTI of the first node.

As a sub-embodiment of this embodiment, the above-mentioned one bit string is a fulll i-RNTI of the first node.

As a sub-embodiment of this embodiment, the one bit string includes 24 bits.

As a sub-embodiment of this embodiment, the one bit string includes 40 bits.

As a sub-embodiment of this embodiment, the second message includes a resubmac-I field, and the resubmac-I field is set to a bit string.

As a sub-embodiment of this embodiment, the resumeau field is included in the second message.

As an embodiment, if the second message is triggered by the upper layer of the RRC layer, the phrase accompanying the second message includes: before the second message is delivered to the lower layers of the RRC layer.

As an embodiment, if the second message is triggered by the upper layer of the RRC layer, the phrase accompanying the second message includes: after the content in the second message is set up, and before the second message is delivered to the lower layers of the RRC layer.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: before the second message is delivered to the lower layers of the RRC layer.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: after the content in the second message is set up, and before the second message is delivered to the lower layers of the RRC layer.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: before the second message is sent.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: the second message is sent before the MAC layer.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: just when the second message is sent at the MAC layer.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: at least until an acknowledgement message for the second message is received.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: the second message is submitted to a lower layer of the RRC layer over a time interval.

As an embodiment, if the second message is triggered by the third message, the phrase accompanying the second message includes: when the lower layer of the RRC layer transmits the second message for the first time.

As one embodiment, the act of recovering each radio bearer in the first set of radio bearers comprises: recovering all radio bearers in the first set of radio bearers.

As one embodiment, the act of recovering each radio bearer in the first set of radio bearers comprises: and if at least one DRB is included in the first radio bearer set, recovering the at least one DRB.

As one embodiment, the act of recovering each radio bearer in the first set of radio bearers comprises: and if the SRB2 is included in the first radio bearer set, recovering the SRB2.

As an embodiment, SRB1 is recovered along with the second message.

As an embodiment, with the second message, the radio bearers suspended outside the SRB1, SRB0 and the first radio bearer set are not restored.

As an embodiment, only 1 radio bearer is included in the first set of radio bearers.

As an embodiment, the first set of radio bearers includes 1 or more radio bearers.

As an embodiment, the number of radio bearers included in the first set of radio bearers is configurable.

As an embodiment, the types of radio bearers included in the first set of radio bearers are configurable.

As an embodiment, the first radio bearer set does not include SRB1.

As an embodiment, SRB0 is not included in the first set of radio bearers.

As an embodiment, the multicast MRB is not included in the first set of radio bearers.

As an embodiment, the first radio bearer set includes a multicast MRB.

As an embodiment, SRB2 (Signalling Radio Bearer, signaling radio bearer 2) is not included in the first set of radio bearers.

As an embodiment, the first radio bearer set includes SRB2 therein.

As an embodiment, the first radio bearer set includes at least one of SRB2 or DRB.

As an embodiment, any radio bearer in the first set of radio bearers is a DRB or SRB2.

As an embodiment, the phrase whether the first set of radio bearers is triggered by a higher layer of the RRC layer or by a third message comprises: whether the second message is triggered by a higher layer of the RRC layer or by the third message is used to determine the first set of radio bearers.

As an embodiment, the phrase whether the first set of radio bearers is triggered by a higher layer of the RRC layer or by a third message comprises: the radio bearers included in the first set of radio bearers are related to whether at least the second message is triggered by a higher layer of the RRC layer or by a third message.

As an embodiment, the triggering of the second message by the upper layer of the RRC layer includes: the second message is triggered by the higher layer of the RRC layer requesting recovery of the RRC connection.

As an embodiment, the triggering of the second message by the upper layer of the RRC layer includes: the second message is triggered by the first set of conditions being satisfied.

As an embodiment, the triggering of the second message by the third message comprises: the third message is received and used to trigger the second message.

As an embodiment, the second message is used to initiate the first procedure in the present application or the second procedure in the present application.

As an embodiment, the sentence "if the second message is triggered by at least the upper layer of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine that at least one radio bearer "in the first set of radio bearers is alternatively: if the second message is for the first procedure, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is for the second procedure, the first message is not used to determine at least one radio bearer in the first set of radio bearers.

As one embodiment, a first message is received, the first message indicating entry into or maintenance in the RRC inactive state; transmitting a second message when the first set of conditions is satisfied, the second message being used to request data transmission in the RRC inactive state; restoring each radio bearer in a first set of radio bearers along with the second message, the first message being used to determine each radio bearer in the first set of radio bearers; the first set of conditions includes the second message being triggered by a higher layer of the RRC layer.

As one embodiment, a first message is received, the first message indicating entry into or maintenance in the RRC inactive state; transmitting a second message when a second set of conditions is satisfied, the second message being used to request data transmission in the RRC inactive state; restoring each radio bearer in a first set of radio bearers along with the second message, the first message not being used to determine at least one radio bearer in the first set of radio bearers; the second set of conditions includes the second message being triggered by a third message, the third message being used to instruct the first node to perform data transmission in the RRC inactive state.

As a sub-embodiment of this embodiment, the first message indicates a second set of radio bearers.

As a sub-embodiment of this embodiment, the first message does not indicate the second set of radio bearers.

As one embodiment, one of the first set of conditions and the second set of conditions is satisfied.

As an embodiment, both the first set of conditions and the second set of conditions are satisfied.

As an embodiment, the second message is triggered by the upper layer of the RRC layer or the second message is triggered by the third message.

As an embodiment, the second message is triggered by one of the upper layer of the RRC layer or the third message.

As one embodiment, if the second message is triggered by the upper layer of the RRC layer, each radio bearer in the first set of radio bearers is SRB2.

As one embodiment, each radio bearer in the first set of radio bearers is a DRB if the second message is triggered by the upper layer of the RRC layer.

As an embodiment, if the second message is triggered by the upper layer of the RRC layer, each radio bearer in the first set of radio bearers is either SRB2 or DRB.

As an embodiment, if the second message is triggered by the upper layer of the RRC layer, each radio bearer in the first set of radio bearers is either SRB2 or SRB3 or DRB.

As one embodiment, if the second message is triggered by the third message, each radio bearer in the first set of radio bearers is SRB2.

As an embodiment, if the second message is triggered by the third message, each radio bearer in the first set of radio bearers is a DRB.

As an embodiment, if the second message is triggered by the third message, each radio bearer in the first set of radio bearers is either SRB2 or DRB.

As an embodiment, if the second message is triggered by the third message, each radio bearer in the first set of radio bearers is either SRB2 or SRB3 or DRB.

As an embodiment, if the second message is triggered by the third message, each radio bearer in the first set of radio bearers is either SRB2 or DRB or multicast MRB.

As an embodiment, if the second message is triggered by the third message, each radio bearer in the first set of radio bearers is either a DRB or a multicast MRB.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the first message includes an identification of each DRB in the first set of radio bearers; at least one DRB is included in the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the first message includes an indication that the first radio bearer set includes SRB 2; SRB2 is included in the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the first message includes an indication of SRB2 included in the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the first message indicates each radio bearer in the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the first message display indicates each radio bearer in the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the radio bearers included in the first set of radio bearers are radio bearers indicated by the first message.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: only the radio bearers indicated by the first message belong to the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the first message is used to determine whether a radio bearer belongs to the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: whether one radio bearer belongs to the first set of radio bearers is related to whether the first message indicates the one radio bearer.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: whether a radio bearer belongs to the first set of radio bearers is related to the first message.

As a sub-embodiment of this embodiment, if one radio bearer is indicated by the first message, the one radio bearer is one radio bearer of the first set of radio bearers.

As a sub-embodiment of this embodiment, if one radio bearer is not indicated by the first message, the one radio bearer is not one radio bearer of the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: the radio bearers included in the first set of radio bearers are radio bearers indicated by at least one of sdt-DRB-List or sdt-SRB2-Indication in the first message.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: whether a DRB belongs to the first set of radio bearers is related to sdt-DRB-List in the first message.

As a sub-embodiment of this embodiment, if the sdt-DRB-List indicates at least one DRB, the at least one DRB belongs to the first radio bearer set.

As a sub-embodiment of this embodiment, if the sdt-DRB-List does not indicate any DRB, no DRB is included in the first set of radio bearers.

As a sub-embodiment of this embodiment, if the sdt-DRB-List is not included in the first message, no DRB is included in the first set of radio bearers.

As one embodiment, the phrase the first message is used to determine each radio bearer in the first set of radio bearers includes: whether SRB2 belongs to the first set of radio bearers relates to sdt-SRB2-Indication in the first message.

As a sub-embodiment of this embodiment, the sdt-SRB2-Indication indicates whether SRB2 is included in the first set of radio bearers.

As a sub-embodiment of this embodiment, if the sdt-SRB2-Indication is set to allowed, SRB2 is included in the first set of radio bearers, otherwise SRB2 is not included in the first set of radio bearers.

As one embodiment, the phrase that the first message is not used to determine at least one radio bearer in the first set of radio bearers includes: the first message is not used to determine each radio bearer in the first set of radio bearers.

As one embodiment, the phrase that the first message is not used to determine at least one radio bearer in the first set of radio bearers includes: the first message is not used to determine one or more radio bearers in the first set of radio bearers.

As one embodiment, the phrase that the first message is not used to determine at least one radio bearer in the first set of radio bearers includes: all radio bearers in the first set of radio bearers are not determined by the first message.

As one embodiment, the phrase that the first message is not used to determine at least one radio bearer in the first set of radio bearers includes: whether one radio bearer belongs to the first set of radio bearers is independent of whether the first message indicates the one radio bearer.

As one embodiment, the phrase that the first message is not used to determine at least one radio bearer in the first set of radio bearers includes: whether a radio bearer belongs to the first set of radio bearers is independent of the first message.

As an embodiment, if the second message is triggered by at least the third message, the third message is used to determine the first set of radio bearers.

As an embodiment, if at least the second message is triggered by the third message, the third message indicates at least one radio bearer of the first set of radio bearers.

As an embodiment, if the second message is triggered by at least the third message, all DRBs of the first node are included in the first set of radio bearers.

As an embodiment, if the second message is triggered by at least the third message, SRB2 is included in the first set of radio bearers.

As an embodiment, if the second message is triggered by at least the third message, the second message is used to determine the first set of radio bearers.

As a sub-embodiment of this embodiment, the second message indicates each radio bearer in the first set of radio bearers.

As a sub-embodiment of this embodiment, the second message indicates at least one radio bearer in the first set of radio bearers.

As an embodiment, the phrase "the first message is not used to determine at least one radio bearer in the first set of radio bearers" may be replaced with: the third message is used to determine the first set of radio bearers, or the third message indicates at least one radio bearer of the first set of radio bearers, or all DRBs of the first node are included in the first set of radio bearers, or SRB2 is included in the first set of radio bearers, or the second message is used to determine at least one of the first set of radio bearers.

As an embodiment, the third message is used to instruct the first node to perform data transmission in the RRC inactive state.

As a sub-embodiment of this embodiment, the third message display instructs the first node to perform data transmission in the RRC inactive state.

As a sub-embodiment of this embodiment, the third message implicitly indicates that the first node is in the RRC inactive state for data transmission.

As a sub-embodiment of this embodiment, the third message is transmitted over a PCCH (Paging Control Channel ).

As a sub-embodiment of this embodiment, the third message is used for Paging (Paging).

As a sub-embodiment of this embodiment, the third message comprises an RRC message.

As a sub-embodiment of this embodiment, the third message is an air interface message.

As a sub-embodiment of this embodiment, the third message is a downlink message.

As a sub-embodiment of this embodiment, the third message is an RRC message.

As a sub-embodiment of this embodiment, the third message is a paging message.

As a sub-embodiment of this embodiment, the third message is a Paging message.

As a sub-embodiment of this embodiment, the third message includes at least one RRC IE.

As a sub-embodiment of this embodiment, the third message comprises at least one RRC domain.

As a sub-embodiment of this embodiment, the third message includes an RRC field including a name of Paging or Record or List.

As a sub-embodiment of this embodiment, a PagingRecordList is included in the third message.

As a sub-embodiment of this embodiment, the third message includes at least one PagingRecord field therein.

As a sub-embodiment of this embodiment, the third message is a PagingRecord field.

As a sub-embodiment of this embodiment, the third message comprises a first identification, the first identification indicating the first node.

As a sub-embodiment of this embodiment, the third message includes a first field indicating that data transmission is performed in the RRC inactive state.

As a sub-embodiment of this embodiment, the third message includes a first field and the third message includes a second field used to instruct the first node to perform data transmission in the RRC inactive state; the second domain is set to a first identity, the first identity indicating the first node.

As a sub-embodiment of this embodiment, the first domain is associated to the second domain.

As a sub-embodiment of this embodiment, the first domain is directed to the second domain.

As a sub-embodiment of this embodiment, the first domain and the second domain are associated to the same PagingRecord.

As a sub-embodiment of this embodiment, the first domain and the second domain are two domains in the same PagingRecord.

As a sub-embodiment of this embodiment, the first domain and the second domain belong to the same PagingRecord.

As a sub-embodiment of this embodiment, at least one of mt or ul or sdt is included in the name of the first field.

As a sub-embodiment of this embodiment, the first field is set to a first value indicating that data transmission is performed in the RRC inactive state.

As a sub-embodiment of this embodiment, the name of the first value includes at least one of mt or ul or sdt.

As a sub-embodiment of this embodiment, the name of the first value is a string.

As a sub-embodiment of this embodiment, the name of the first value is wire.

As a sub-embodiment of this embodiment, the first field is set to a first value, the name of which is mt-sdt.

As a sub-embodiment of this embodiment, the first field is set to a first value, the name of which is ul-sdt.

As a sub-embodiment of this embodiment, the first field is set to a first value, the name of which is sdt.

As a sub-embodiment of this embodiment, the first identity matches a fulll i-RNTI of the first node.

As a sub-embodiment of this embodiment, the first identity and the fulll i-RNTI of the first node are equal.

As a sub-embodiment of this embodiment, the first identification is a non-negative integer.

As a sub-embodiment of this embodiment, the first identification is a bit string.

As a sub-embodiment of this embodiment, the first identity is a fuse I-RNTI, which is set to I-RNTI-Value, which is a BIT STRING (BIT STRING).

As a sub-embodiment of this embodiment, the first identity is an I-RNTI-Value, which is a bit string.

As a sub-embodiment of this embodiment, the length of the one bit string is a positive integer number of bits.

As a sub-embodiment of this embodiment, the length of the one bit string is 48 bits.

As a sub-embodiment of this embodiment, the third message includes a pagerecord list field, where the pagerecord list includes at least one pagerecord field, one pagerecord field of the at least one pagerecord field includes a ue-Identity field, the ue-Identity field includes a pageue-Identity field, the pageue-Identity field includes a fullI-RNTI field, and the fullI-RNTI field includes an I-RNTI-Value field, where the I-RNTI-Value field indicates the first identifier.

As a sub-embodiment of this embodiment, the second field is an I-RNTI-Value field.

As a sub-embodiment of this embodiment, the second field is a fulll i-RNTI field.

As a sub-embodiment of this embodiment, the second domain is a ue-Identity domain.

As a sub-embodiment of this embodiment, the second domain is a paging ue-Identity domain.

Example 1B

Embodiment 1B illustrates a flow chart of the transmission of a first message, a second message, a third message, and a fourth message according to one embodiment of the application, as shown in fig. 1B. In fig. 1B, each block represents a step, and it is emphasized that the order of the blocks in the drawing does not represent temporal relationships between the represented steps.

In embodiment 1B, a first node in the present application receives a first message indicating to enter or remain in an RRC inactive state in step 101B; receiving a third message in the RRC inactive state, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state; in step 102B, a second message is sent, where the second message is used to request data transmission in the RRC inactive state, and the second message is triggered by the third message; restoring each radio bearer in the first set of radio bearers along with the second message; after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or the second information is related to whether a given condition set is met or not; wherein one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

As an embodiment, the meaning of the behavior "receive a first message indicating entering or maintaining in RRC inactive state" refers to embodiment 1A.

As an embodiment, the phrase "the third message is used to indicate that the first node performs data transmission in the RRC inactive state" refers to embodiment 1A.

As an embodiment, the phrase "send a second message, which is used to request data transmission in the RRC inactive state" has the meaning of embodiment 1A.

As an example, the phrase "the second set of radio bearers includes at least one radio bearer" refers to example 1A.

As an embodiment, the meaning of the action "resume each radio bearer in the first set of radio bearers along with the second message" is referred to in embodiment 1A.

As an example, the phrase "accompanied by the second message" means reference to example 1A.

As an embodiment, SRB1 is recovered along with the second message.

As one embodiment, the third message indicates at least one radio bearer in the first set of radio bearers.

As an embodiment, the first radio bearer set does not include SRB1.

As an embodiment, SRB0 is not included in the first set of radio bearers.

As an embodiment, the first radio bearer set includes a multicast MRB.

As an embodiment, the first radio bearer set includes SRB2 therein.

As an embodiment, all DRBs of the first node are included in the first set of radio bearers.

As one embodiment, the first set of radio bearers is the second set of radio bearers.

As one embodiment, the first set of radio bearers is not the second set of radio bearers.

As one embodiment, the first message indicates the second set of radio bearers.

As one embodiment, the first message does not indicate the second set of radio bearers.

As one embodiment, the first message indicates the second set of radio bearers; the third message indicates at least one radio bearer in the first set of radio bearers.

As one embodiment, the first message indicates the second set of radio bearers; all DRBs of the first node are included in the first set of radio bearers.

As one embodiment, the first message indicates the second set of radio bearers; the first set of radio bearers is the second set of radio bearers.

As one embodiment, the third message indicates at least one radio bearer in the first set of radio bearers; the first set of radio bearers is the second set of radio bearers.

As an embodiment, all DRBs of the first node are included in the first set of radio bearers; the first set of radio bearers is the second set of radio bearers.

As an embodiment, the first set of radio bearers is related to whether the second message is triggered by a higher layer of the RRC layer or by a third message.

As a sub-embodiment of this embodiment, if the second message is triggered by at least the upper layer of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers.

As a sub-embodiment of this embodiment, the third message is used to determine the first set of radio bearers.

As a sub-embodiment of this embodiment, the third message indicates at least one radio bearer in the first set of radio bearers.

As a sub-embodiment of this embodiment, all DRBs of the first node are included in the first set of radio bearers.

As a sub-embodiment of this embodiment, SRB2 is included in the first set of radio bearers.

As a sub-embodiment of this embodiment, the second message is used to determine the first set of radio bearers.

As an embodiment, the first set of radio bearers is independent of whether the second message is triggered by a further upper layer of the RRC layer or by a third message.

As a sub-embodiment of this embodiment, the first message is used to determine each radio bearer in the first set of radio bearers regardless of whether the second message is triggered by a further upper layer of the RRC layer or by the third message.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the application, as shown in fig. 2. Fig. 2 illustrates a network architecture 200 of a 5G NR (New Radio)/LTE (Long-Term Evolution)/LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR/LTE-a network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System ) 200, or some other suitable terminology. The 5GS/EPS 200 includes at least one of a UE (User Equipment) 201, a ran (radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, an hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and an internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 may be connected to other nodes 204 via an Xn interface (e.g., backhaul)/X2 interface. Node 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The node 203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The node 203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

As an embodiment, the UE201 is a User Equipment (UE).

As an embodiment, the node 203 corresponds to the second node in the present application.

As an embodiment, the node 203 is a base station device (BS).

As an embodiment, the node 203 is a user equipment.

As an embodiment, the node 203 is a relay.

As an embodiment, the node 203 is a Gateway (Gateway).

As an embodiment, the node 204 corresponds to the third node in the present application.

As an embodiment, the node 204 corresponds to the fourth node in the present application.

As an embodiment, the node 204 is a base station device.

As an embodiment, the node 204 is a user equipment.

As an example, the node 204 is a relay.

As an embodiment, the node 204 is a Gateway (Gateway).

As an embodiment, the node 203 and the node 204 are connected through an ideal backhaul connection.

As an embodiment, the node 203 and the node 204 are connected through a non-ideal backhaul connection.

As an example, the node 203 and the node 204 simultaneously provide radio resources for the UE 201.

As an example, the node 203 and the node 204 do not provide radio resources to the UE201 at the same time.

As an embodiment, the node 203 and the node 204 are the same node.

As an embodiment, the node 203 and the node 204 are two different nodes.

As an embodiment, the node 203 and the node 204 are of the same type.

As an embodiment, the node 203 and the node 204 are of different types.

As an embodiment, the user equipment supports transmission of a terrestrial network (Non-Terrestrial Network, NTN).

As an embodiment, the user equipment supports transmission of a non-terrestrial network (Terrestrial Network ).

As an embodiment, the user equipment supports transmissions in a large latency difference network.

As an embodiment, the user equipment supports Dual Connection (DC) transmission.

As an embodiment, the user device comprises an aircraft.

As an embodiment, the user equipment includes a vehicle-mounted terminal.

As an embodiment, the user equipment comprises a watercraft.

As an embodiment, the user equipment includes an internet of things terminal.

As an embodiment, the user equipment includes a terminal of an industrial internet of things.

As an embodiment, the user equipment comprises a device supporting low latency high reliability transmissions.

As an embodiment, the user equipment comprises a test equipment.

As an embodiment, the user equipment comprises a signaling tester.

As an embodiment, the base station device comprises a base transceiver station (Base Transceiver Station, BTS).

As an embodiment, the base station device comprises a node B (NodeB, NB).

As an embodiment, the base station device comprises a gNB.

As an embodiment, the base station device comprises an eNB.

As an embodiment, the base station device comprises a ng-eNB.

As an embodiment, the base station device comprises an en-gNB.

As an embodiment, the base station device supports transmissions on a non-terrestrial network.

As one embodiment, the base station apparatus supports transmissions in a large delay network.

As an embodiment, the base station device supports transmission of a terrestrial network.

As an embodiment, the base station device comprises a macro Cellular (Marco Cellular) base station.

As one embodiment, the base station apparatus includes a Micro Cell (Micro Cell) base station.

As one embodiment, the base station apparatus includes a Pico Cell (Pico Cell) base station.

As an embodiment, the base station device comprises a home base station (Femtocell).

As an embodiment, the base station apparatus includes a base station apparatus supporting a large delay difference.

As an embodiment, the base station device comprises a flying platform device.

As an embodiment, the base station device comprises a satellite device.

As an embodiment, the base station device comprises a TRP (Transmitter Receiver Point, transmitting receiving node).

As an embodiment, the base station apparatus includes a CU (Centralized Unit).

As an embodiment, the base station apparatus includes a DU (Distributed Unit).

As an embodiment, the base station device comprises a test device.

As an embodiment, the base station device comprises a signaling tester.

As an embodiment, the base station apparatus comprises a IAB (Integrated Access and Backhaul) -node.

As an embodiment, the base station device comprises an IAB-donor.

As an embodiment, the base station device comprises an IAB-donor-CU.

As an embodiment, the base station device comprises an IAB-donor-DU.

As an embodiment, the base station device comprises an IAB-DU.

As an embodiment, the base station device comprises an IAB-MT.

As an embodiment, the relay comprises a relay.

As an embodiment, the relay comprises an L3 relay.

As one embodiment, the relay comprises an L2 relay.

As an embodiment, the relay comprises a router.

As an embodiment, the relay comprises a switch.

As an embodiment, the relay comprises a user equipment.

As an embodiment, the relay comprises a base station device.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 with three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering the data packets and handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat Request ). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), in which user plane 350 the radio protocol architecture is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic.

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

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

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

As an embodiment, the first message in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the first message in the present application is generated in the PHY301 or the PHY351.

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

As an embodiment, the second message in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the second message in the present application is generated in the PHY301 or the PHY351.

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

As an embodiment, the third message in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the third message in the present application is generated in the PHY301 or the PHY351.

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

As an embodiment, the fourth message in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the fourth message in the present application is generated in the PHY301 or the PHY351.

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

As an embodiment, the fifth message in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the fifth message in the present application is generated in the PHY301 or the PHY351.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: receiving a first message indicating entry into or maintenance in an RRC inactive state; transmitting a second message, the second message being used to request data transmission in the RRC inactive state; restoring each radio bearer in a first set of radio bearers associated with whether the second message is triggered by a higher layer of an RRC layer or by a third message, with the second message; wherein the phrase whether the first set of radio bearers is triggered by a higher layer of an RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first message indicating entry into or maintenance in an RRC inactive state; transmitting a second message, the second message being used to request data transmission in the RRC inactive state; restoring each radio bearer in a first set of radio bearers associated with whether the second message is triggered by a higher layer of an RRC layer or by a third message, with the second message; wherein the phrase whether the first set of radio bearers is triggered by a higher layer of an RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As one embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 at least: transmitting a first message indicating entry into or maintenance in an RRC inactive state; receiving a second message, wherein the second message is used for requesting data transmission in the RRC inactive state; wherein each radio bearer in a first set of radio bearers is recovered with the second message, the first set of radio bearers being related to whether the second message is triggered by a further upper layer of an RRC layer or by a third message; the phrase whether the first set of radio bearers is triggered by a further upper layer of the RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the receiver of the first message to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As one embodiment, the second communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting a first message indicating entry into or maintenance in an RRC inactive state; receiving a second message, wherein the second message is used for requesting data transmission in the RRC inactive state; wherein each radio bearer in a first set of radio bearers is recovered with the second message, the first set of radio bearers being related to whether the second message is triggered by a further upper layer of an RRC layer or by a third message; the phrase whether the first set of radio bearers is triggered by a further upper layer of the RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the receiver of the first message to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, the first communication device 450 at least: receiving a first message indicating entry into or maintenance in an RRC inactive state; receiving a third message in the RRC inactive state, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state; transmitting a second message, wherein the second message is used for requesting data transmission in the RRC inactive state, and the second message is triggered by the third message; restoring each radio bearer in the first set of radio bearers along with the second message; after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or the second information is related to whether a given condition set is met or not; wherein one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first message indicating entry into or maintenance in an RRC inactive state; receiving a third message in the RRC inactive state, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state; transmitting a second message, wherein the second message is used for requesting data transmission in the RRC inactive state, and the second message is triggered by the third message; restoring each radio bearer in the first set of radio bearers along with the second message; after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or the second information is related to whether a given condition set is met or not; wherein one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

As one embodiment, the second communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 at least: transmitting a first message indicating entry into or maintenance in an RRC inactive state; transmitting a third message, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state; receiving a second message, wherein the second message is used for requesting data transmission in the RRC inactive state, and the second message is triggered by the third message; receiving a fourth message, the fourth message comprising either first information or second information, the fourth message comprising whether the first information or the second information relates to whether a given set of conditions is met; wherein the third message is received by a recipient of the first message in the RRC inactive state; after the second message is triggered by the third message, the fourth message is sent by the receiver of the first message; the presence of first uplink data is used to trigger the fourth message; one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

As one embodiment, the second communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting a first message indicating entry into or maintenance in an RRC inactive state; transmitting a third message, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state; receiving a second message, wherein the second message is used for requesting data transmission in the RRC inactive state, and the second message is triggered by the third message; receiving a fourth message, the fourth message comprising either first information or second information, the fourth message comprising whether the first information or the second information relates to whether a given set of conditions is met; wherein the third message is received by a recipient of the first message in the RRC inactive state; after the second message is triggered by the third message, the fourth message is sent by the receiver of the first message; the presence of first uplink data is used to trigger the fourth message; one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

As an example, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to receive a first message.

As one example, the antenna 420, the transmitter 418, the transmit processor 416, and at least one of the controller/processors 475 are used to transmit a first message.

As an example, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 is used to send a second message.

As an example, at least one of the antenna 420, the receiver 418, the receive processor 470, and the controller/processor 475 is used to receive a second message.

As an example, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to receive a third message.

As an example, the antenna 420, the transmitter 418, the transmit processor 416, and at least one of the controller/processors 475 are used to transmit a third message.

As an example, the antenna 452, the transmitter 454, the transmit processor 468, the controller/processor 459 is used to send a fourth message.

As an example, at least one of the antenna 420, the receiver 418, the receive processor 470, and the controller/processor 475 is configured to receive a fourth message.

As an example, the antenna 452, the receiver 454, the receive processor 456, the controller/processor 459 is used to listen/receive a fifth message.

As an example, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller/processor 475 is used to transmit a fifth message.

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

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

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

As an embodiment, the first communication device 450 is a user device supporting a large delay difference.

As an embodiment, the first communication device 450 is a NTN-enabled user device.

As an example, the first communication device 450 is an aircraft device.

For one embodiment, the first communication device 450 is provided with positioning capabilities.

For one embodiment, the first communication device 450 is not capable.

As an embodiment, the first communication device 450 is a TN enabled user device.

As an embodiment, the second communication device 410 is a base station device (gNB/eNB/ng-eNB).

As an embodiment, the second communication device 410 is a base station device supporting a large delay difference.

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

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

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

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

Example 5

Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the application, as shown in fig. 5. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S5101, a first message is received indicating entry into or maintenance in an RRC inactive state; in step S5102, reception is performed in the RRC inactive state The third message; in step S5103, a second set of conditions is satisfied, the second set of conditions including the third message being received; in step S5104, each radio bearer in the first set of radio bearers is recovered along with the second message; in step S5105, a second message is transmitted, which is used to request data transmission in the RRC inactive state.

For the followingSecond node N02In step S5201, the second message is received.

For the followingThird node N03In step S5301, the third message is transmitted.

For the followingFourth node N04In step S5401, the first message is transmitted.

In embodiment 5, the second message is triggered by the third message; the third message is used for indicating the first node U01 to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first node U01 is a user equipment.

As an embodiment, the first node U01 is a base station device.

As an embodiment, the first node U01 is a relay device.

As an embodiment, the second node N02 is a base station device.

As an embodiment, the second node N02 is a user equipment.

As an embodiment, the second node N02 is a relay device.

As an embodiment, the third node N03 is a base station device.

As an embodiment, the third node N03 is a user equipment.

As an embodiment, the third node N03 is a relay device.

As an embodiment, the fourth node N04 is a base station device.

As an embodiment, the fourth node N04 is a user equipment.

As an embodiment, the fourth node N04 is a relay device.

Typically, the first node U01 is a user equipment, the second node N02 is a gNB, the third node N03 is a gNB, and the fourth node N04 is a gNB.

As an embodiment, the second node N02, the third node N03, and the fourth node N04 are all the same.

As an embodiment, at least two nodes among the second node N02, the third node N03, and the fourth node N04 are different.

As an embodiment, the third node N03 is the second node N02.

As an embodiment, the third node N03 is not the second node N02.

As an embodiment, the third node N03 is the fourth node N04.

As an embodiment, the third node N03 is not the fourth node N04.

As an embodiment, the step S5104 precedes the step S5105.

As an embodiment, the step S5104 follows the step S5105.

As an embodiment, the second message is triggered by the third message.

As an embodiment, the second message is used for a second procedure to determine that the second message is triggered by the third message.

As a sub-embodiment of this embodiment, the triggering of the second message by the third message means: the second message is directed to the second process.

As a sub-embodiment of this embodiment, the second process is an SDT process.

As a sub-embodiment of this embodiment, the second procedure is an MT-SDT procedure.

As a sub-embodiment of this embodiment, the second procedure is a DL-SDT procedure.

As a sub-embodiment of this embodiment, each condition of the second set of conditions is satisfied is used to determine to initiate the second process.

As a sub-embodiment of this embodiment, the second process is initiated when each condition of the second set of conditions is satisfied.

As a sub-embodiment of this embodiment, the second process is initiated if each condition of the second set of conditions is met.

As a sub-embodiment of this embodiment, in the second process, the second message is sent.

As a sub-embodiment of this embodiment, one condition of the second set of conditions is: the third message is received.

As a sub-embodiment of this embodiment, one condition of the second set of conditions is: the third message does not include a pagenggroupList.

As a sub-embodiment of this embodiment, one condition of the second set of conditions is: the third message includes a pagenggrouplist, and the first node U01 does not participate in the MBS session indicated by each TMGI in the pagenggrouplist.

As a sub-embodiment of this embodiment, the second set of conditions includes: the third message is received and the third message does not include a paginggroupList.

As a sub-embodiment of this embodiment, the second set of conditions includes: the third message is received and includes a pagenggrouplist, and the first node U01 is not participating in the MBS session indicated by each TMGI in the pagenggrouplist.

As an embodiment, the second message is used to initiate the second procedure in the present application, which includes data transmission in the RRC inactive state.

As an embodiment, the first set of radio bearers is used for the second procedure in the application if the second message is triggered by the third message.

As an embodiment, if the second message is for the second procedure in the present application, the first set of radio bearers is used for the second procedure in the present application.

As an embodiment, the triggering of the second message by the third message comprises: the second message is directed to the second process.

As an embodiment, a second set of conditions is satisfied, the second set of conditions including the third message being received.

As an embodiment, the first message is not used to determine at least one radio bearer in the first set of radio bearers.

As an embodiment, when the third message is received, the first node U01 is in the RRC inactive state.

As an embodiment, the third message is received after the first message is received.

As an embodiment, the first node U01 is always in the RRC inactive state during the time interval between the first message being received and the third message being received.

As an embodiment, the first node U01 does not send any one of the rrcruumerequest message or the rrcruumerequest 1 message during the time interval between the first message being received and the third message being received.

As an embodiment, the second message is sent after the third message is received.

As an embodiment, the PDCP entity of each radio bearer in the first set of radio bearers is not re-established until each radio bearer in the first set of radio bearers is restored.

As one embodiment, the PDCP entity of each radio bearer in the first set of radio bearers is reconstructed before each radio bearer in the first set of radio bearers is recovered.

As a sub-embodiment of this embodiment, the PDCP entity that acts to re-establish each radio bearer in the first set of radio bearers is not used to trigger PDCP status report (status report).

As a sub-embodiment of this embodiment, the PDCP entity that acts to re-establish each radio bearer in the first set of radio bearers is used to trigger a PDCP status report (status report).

As a sub-embodiment of this embodiment, PDCP status reporting is not triggered when reconstructing PDCP entities of each radio bearer in the first set of radio bearers.

AS one embodiment, RLC bearers associated with the masterCellGroup are restored before each radio bearer in the first set of radio bearers is restored, and the pdcp-Config is restored from the UE inactive AS context (UE Inactive AS context).

As an embodiment, the second message is used to trigger the start of a second timer.

As a sub-embodiment of this embodiment, the second timer is T319.

As a sub-embodiment of this embodiment, the second timer is T319a.

As a sub-embodiment of this embodiment, the second timer is T319b.

As a sub-embodiment of this embodiment, the second timer is started when the second message is sent.

As a sub-embodiment of this embodiment, the second timer is started before the second message is submitted to a further lower layer of the RRC layer.

As a sub-embodiment of this embodiment, the second timer is started when the second message is sent for the first time by a further lower layer of the RRC layer.

As an embodiment, the second message is not used to trigger the starting of the second timer.

Example 6

Embodiment 6 illustrates a wireless signal transmission flow diagram according to another embodiment of the present application, as shown in fig. 6. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S6101, a first message is received, the first message indicating entering or maintaining in an RRC inactive state; in step S6102, a first set of conditions is satisfied, the first set of conditions including a higher layer request of the RRC layer to resume the RRC connection; in step S6103, each radio bearer in the first set of radio bearers is recovered with the second message; in step S6104, a second message is sent, which is used to request data transmission in the RRC inactive state.

For the followingSecond node N02In step S6201, the second message is received.

For the followingFourth node N04In step S6401, the first message is sent.

In embodiment 6, the second message is triggered by the upper layer of the RRC layer; the first message is used to determine each radio bearer in the first set of radio bearers; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the third message is not received.

As an embodiment, the first node U01 does not receive a paging message indicating the first node U01 in a time interval between a time when the first message is received and a time when the second message is triggered.

As an embodiment, the second message is triggered by the upper layer of the RRC layer.

As an embodiment, the second message is used for a first procedure to determine that the second message is triggered by the upper layer of the RRC layer.

As a sub-embodiment of this embodiment, the triggering of the second message by the upper layer of the RRC layer means: the second message is directed to the first procedure.

As a sub-embodiment of this embodiment, the first process is an SDT process.

As a sub-embodiment of this embodiment, the first procedure is a MO-SDT procedure.

As a sub-embodiment of this embodiment, the first procedure is a UL-SDT procedure.

As a sub-embodiment of this embodiment, each condition of the first set of conditions is satisfied is used to determine to initiate the first procedure.

As a sub-embodiment of this embodiment, the first process is initiated when each condition of the first set of conditions is satisfied.

As a sub-embodiment of this embodiment, the first process is initiated if each condition of the first set of conditions is satisfied.

As a sub-embodiment of this embodiment, in the first procedure, the second message is sent.

As a sub-embodiment of this embodiment, one condition of the first set of conditions is: the second message is triggered by a higher layer of the RRC layer.

As a sub-embodiment of this embodiment, one condition of the first set of conditions is: SIB1 includes sdt-ConfigCommon.

As a sub-embodiment of this embodiment, the first node U01 receives the SIB1 before the second message.

As a sub-embodiment of this embodiment, one condition of the first set of conditions is: the SDT configuration is configured.

As a sub-embodiment of this embodiment, the first node U01 receives the SDT configuration prior to the second message.

As a sub-embodiment of this embodiment, the SDT configuration is SDT-Config.

As a sub-embodiment of this embodiment, one condition of the first set of conditions is: all data to be transmitted in the uplink is mapped to radio bearers configured for SDT.

As a sub-embodiment of this embodiment, the radio bearer configured for SDT belongs to the first set of radio bearers.

As a sub-embodiment of this embodiment, one condition of the first set of conditions is: the lower layer of the RRC layer of the first node U01 indicates that a condition for initiating the first procedure is satisfied.

As a sub-embodiment of this embodiment, the first set of conditions includes: the second message is triggered by a higher layer of the RRC layer and SIB1 includes SDT-ConfigCommon and SDT-Config is configured and all data to be transmitted of the uplink is mapped to radio bearers configured for SDT and a lower layer of the RRC layer of the first node indicates that a condition for initiating the first procedure is satisfied.

As a sub-embodiment of this embodiment, the first set of conditions includes: the second message is triggered by a further upper layer of the RRC layer, or SIB1 includes SDT-ConfigCommon, or SDT-Config is configured, or all data to be transmitted of the uplink is mapped to a radio bearer configured for SDT, or a further lower layer of the RRC layer of the first node indicates that a condition of initiating the first procedure is satisfied, or at least one of paging messages indicating the first node is not received.

As an embodiment, the second message is used to initiate the first procedure in the present application, which includes data transmission in the RRC inactive state.

As an embodiment, the first set of radio bearers is used for the first procedure in the application if the second message is triggered by a further upper layer of the RRC layer.

As an embodiment, if the second message is for the first procedure in the present application, the first set of radio bearers is used for the first procedure in the present application.

As an embodiment, the triggering of the second message by the upper layer of the RRC layer includes: the second message is directed to the first procedure.

As an embodiment, the phrase "the first set of radio bearers is related to whether the second message is triggered by a further upper layer of the RRC layer or by a third message" may be replaced by: the first set of radio bearers is related to whether the second message is for the first procedure or the second procedure.

As an embodiment, the phrase that the second message is triggered by a higher layer of the RRC layer means that: the upper layer of the RRC layer requests recovery of RRC connection.

As an embodiment, the phrase that the second message is triggered by a higher layer of the RRC layer means that: the upper layer of the RRC layer of the first node U01 requests to resume an RRC connection.

As an embodiment, if the data amount (data volume of the pending UL data) of the uplink data to be processed of all radio bearers in the first radio bearer set is smaller than (less than) or equal to (equal) SDT-datavolume Threshold and the RSRP (Reference Signal Received Power ) of the downlink path loss reference (downlink pathloss reference) is higher than SDT-RSRP-Threshold and CG (Configured Grant) -SDT is Configured on the selected uplink carrier (selected UL carrier) and TA (Timing Advance) configuring Grant type 1 (Configured Grant Type 1) resources is valid and SS (Synchronization Signal ) -RSRP is higher than CG-RSRP-Threshold SSB for at least one SSB (Synchronization Signal Block ) Configured for CG-SDT, the lower layer of the RRC layer of the first node U01 indicates to the RRC layer that the first procedure is satisfied.

As an embodiment, if the data amount of the uplink data to be processed of all radio bearers in the first radio bearer set is less than or equal to SDT-datavolume Threshold and the RSRP of the downlink path loss reference is higher than SDT-RSRP-Threshold and the TA on the selected uplink carrier that is not configured with CG-SDT or configured with grant type 1 resources is not invalid or the SS-RSRP of each SSB configured for CG-SDT is not higher than CG-SDT-RSRP-Threshold SSB and a set of random access resources indicating RA-SDT is available on the selected uplink carrier, the lower layer of the RRC layer of the first node U01 indicates to the RRC layer that the condition for initiating the first procedure is met.

As one example, if cg-SDT-TimeAlignmentTimer is running and the current downlink reference RSRP value is increased or decreased by no more than cg-SDT-RSRP-ChangeThreshold compared to the stored downlink reference RSRP value, the TA configuring grant type 1 resources is considered valid.

As an embodiment, the SDT-datavolumetethreshold is a data amount threshold that is determined by the first node U01 whether to perform SDT.

As an embodiment, the SDT-RSRP-Threshold is an RSRP Threshold at which the first node U01 determines whether to perform SDT.

As one example, the CG-SDT-RSRP-threshold SSB is an RSRP threshold selected for SSB of CG-SDT.

As one embodiment, the cg-SDT-RSRP-ChangeThreshold is an RSRP threshold (RSRP threshold for the increase/decrease of RSRP for time alignment validation) for an increase or decrease in RSRP for timing alignment verification.

As an embodiment, the step S6103 precedes the step S6104.

As an embodiment, the PDCP entity that acts to reestablish each radio bearer in the first set of radio bearers is not used to trigger PDCP status report (status report).

As an embodiment, PDCP status reporting is not triggered when the PDCP entity of each radio bearer in the first set of radio bearers is re-established.

As an embodiment, the second message is used to trigger a start timer T319a.

As an embodiment, the timer T319a is started when the second message is sent.

As an embodiment, the timer T319a is started before the second message is submitted to the lower layers of the RRC layer.

As an embodiment, the timer T319a is started when the lower layer of the RRC layer sends the second message for the first time.

As an embodiment, the definition of the timer T319a refers to 3gpp TS 38.331.

As an embodiment, the first information block includes at least one RRC domain.

As an embodiment, the first information block includes at least one RRC IE.

As an embodiment, the name of the first information block includes at least one of mt or mo or sdt or Config or 1 or 2.

As an embodiment, the name of the first information block includes at least one of sdt or DRB or List or 1 or 2.

As an embodiment, the name of the first information block includes at least one of sdt or SRB2 or Indication or 1 or 2.

As an embodiment, the first information block is sdt-Config.

As an embodiment, the first information block comprises sdt-DRB-List.

As an embodiment, the first information block comprises sdt-SRB2-Indication.

As an embodiment, the first information block is sdt-DRB-List.

As an embodiment, the first information block is sdt-SRB2-Indication.

Example 7

Embodiment 7 illustrates a wireless signal transmission flow diagram according to yet another embodiment of the present application, as shown in fig. 7. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S7101, a first message is received, which indicates entry into or maintenance in an RRC inactive state; in step S7102, a third message is received in the RRC inactive state, the third message being used to instruct the first node U01 to perform data transmission in the RRC inactive state; in step S7103, a second message is sent, where the second message is used to request data transmission in the RRC inactive state, and the second message is triggered by the third message; in step S7104, after the second message is triggered by the third message, it is determined that there is first uplink data; in step S7105, it is determined whether each condition in a given set of conditions is satisfied, if each condition in the given set of conditions is satisfied, step S7106 (a) is entered, and if at least one condition in the given set of conditions is not satisfied, step S7106 (b) is entered; in step S7106 (a), as a response to the presence of the first uplink data, a fourth message including the first information is transmitted; in step S7106 (b), as the presence of the first uplink data And sending a fourth message, the fourth message including the second information.

For the followingSecond node N02In step S7201, receiving the second message; in step S7202, the fourth message is received.

For the followingThird node N03In step S7301, the third message is transmitted.

For the followingFourth node N04In step S7401, the first message is sent.

In embodiment 7, one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; the second set of radio bearers includes at least one radio bearer therein; the fourth message comprising either first information or second information, whether the fourth message comprises the first information or the second information is related to whether a given set of conditions is met; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; the fourth message includes the second information if at least one condition of the given set of conditions is not satisfied.

As an embodiment, the first MAC CE in the present application is transmitted.

As an embodiment, the first MAC CE in the present application is not transmitted.

As an example, the dashed box F7.1 is optional.

As an example, the dashed box F7.1 exists.

As an example, the dashed box F7.1 does not exist.

As an example, the dashed box F7.2 is optional.

As an example, the dashed box F7.2 exists.

As an example, the dashed box F7.2 does not exist.

As an embodiment only one of said dashed box F7.1 and said dashed box F7.2 is present.

As an embodiment, the first node U01 is always in an RRC inactive state in a time interval between a time when the second message is triggered by the third message and a time when the fourth message is transmitted.

As an embodiment, the first node U01 is performing the second procedure in a time interval between a time when the second message is triggered by the third message and a time when the fourth message is sent.

As an embodiment, the second process is not stopped in a time interval between a time when the second message is triggered by the third message and a time when the fourth message is transmitted.

As an embodiment, the first node U01 does not receive any one of the RRCRelease message or the RRCReject message or the RRCSetup message or the rrcreseume message in a time interval between a time when the second message is triggered by the third message and a time when the fourth message is transmitted.

As an embodiment, after the phrase that the second message is triggered by the third message, the method includes: the content of the second message is initially set.

As an embodiment, after the phrase that the second message is triggered by the third message, the method includes: after determining that each condition in the second set of conditions is satisfied.

As an embodiment, after the phrase that the second message is triggered by the third message, the method includes: after the content in the second message is set.

As an embodiment, after the phrase that the second message is triggered by the third message, the method includes: the second message is submitted to a lower layer of the RRC layer.

As an embodiment, after the phrase that the second message is triggered by the third message, the method includes: the second message is successfully transmitted by a lower layer of the RRC layer.

As an embodiment, the first node U01 determines that the second procedure is being performed when the first uplink data is present.

As an embodiment, when the first node U01 determines that the first uplink data exists, the first timer is running.

As an embodiment, when the first node U01 determines that the first uplink data exists, a timer is running, and the timer is used to determine that the second procedure is being performed.

As an embodiment, when the first node U01 determines that the first uplink data exists, the RRC response to the second message is not received.

As an embodiment, when the first node U01 determines that the first uplink data exists, the first node U01 is listening to a PDCCH scrambled by the C-RNTI.

As an embodiment, when the first node U01 determines that the first uplink data exists, the first node U01 is listening to a PDCCH scrambled by the RA-RNTI.

As an embodiment, when the first node U01 determines that the first uplink data exists, the first node U01 is listening to a PDCCH scrambled by a TC-RNTI.

As an embodiment, when the first node U01 determines that the first uplink data exists, the first node U01 is listening to a PDCCH scrambled by the MSGB-RNTI.

As an embodiment, when the first node U01 determines that the first uplink data exists, the first node U01 is listening to a PDCCH scrambled by either a C-RNTI or RA-RNTI or TC-RNTI or MSGB-RNTI.

As an embodiment, the first uplink data is user plane data.

As an embodiment, the first uplink data is control plane signaling.

As an embodiment, the first uplink data is mapped to at least one of a DRB or an SRB.

As an embodiment, the first uplink data is from a higher layer of the RRC layer of the first node U01.

AS an embodiment, the first uplink data is from an AS layer (Access layer) of the first node U01.

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

As an embodiment, the fourth message is an uplink message.

As an embodiment, the fourth message is transmitted via SRB 1.

As an embodiment, the fourth message is transmitted over DCCH.

As an embodiment, the fourth message is a ueassistance information message.

As an embodiment, the given set of conditions is satisfied and the fourth message comprises the first information.

As an embodiment, the given set of conditions is not met, and the fourth message comprises the second information.

As an embodiment, the given set of conditions is used to determine whether to send the first upstream data in the second procedure.

As an embodiment, the given set of conditions is used to determine whether the first upstream data can be transmitted in the second procedure.

As an embodiment, the first information is used to indicate that there is the first upstream data, and the first upstream data satisfies the given set of conditions.

As an embodiment, the second information is used to indicate that there is the first upstream data, and the first upstream data does not meet the given set of conditions.

As an embodiment, the name of the first information includes at least one of mo or SDT or Data or Indication.

As an embodiment, the name of the first information includes at least one of non or mo or SDT or Data or Indication.

As an embodiment, the first information is SDT-DataIndication.

As an embodiment, the first information comprises SDT-DataIndication.

As an embodiment, the first information includes resumeau.

As an embodiment, the resumeau is not included in the first information.

As an embodiment, the first information is a value of a resumecase field in a non-sdt-DataIndication.

As an embodiment, the first information is a value of a field other than the resumecase field in the non-sdt-DataIndication.

As an embodiment, the second information is a non-sdt-DataIndication.

As an embodiment, the second information comprises a non-sdt-DataIndication.

As an embodiment, the second information includes resumeau.

As an embodiment, the name of the second information is not non-sdt-DataIndication.

As an embodiment, the first information and the second information are different.

As an embodiment, the first information and the second information have different names.

As an embodiment, the domains included in the first information and the second information are different.

As an embodiment, the values of the first information and the second information are different.

As an embodiment, the first information is SDT-DataIndication and the second information is non-SDT-DataIndication.

As an embodiment, the first information is a non-sdt-DataIndication including resumeau therein, which is not set to any one of either eimergency or highprioritaccess or mt-Access or mo-signaling or mo-Data or mo-VoiceCall or mo-video call or mo-SMS or ra-Update or mps-prioritaccess or mcs-prioritaccess; the second information is a non-SDT-DataIndustion including a resumeCAase set to one of Emergency or mo-signaling or mo-Data or mo-Voiceall or mo-video call or mo-SMS or rn-Update.

As an embodiment, the fourth message and the second message are sent in the same MAC PDU (Protocol Data Unit ).

As a sub-embodiment of this embodiment, the same MAC PDU is sent via Msg3 (Message 3) in the random access procedure.

As a sub-embodiment of this embodiment, the same MAC PDU is sent through MsgA (Message a) in the random access procedure.

As a sub-embodiment of this embodiment, the same MAC PDU is sent over the CG-SDT resources in the random access procedure.

As an embodiment, the fourth message and the second message are sent in different MAC PDUs.

As a sub-embodiment of this embodiment, the fourth message is sent after the second message is sent.

As a sub-embodiment of this embodiment, the first node U01 is listening to the C-RNTI when the fourth message is sent.

As a sub-embodiment of this embodiment, the MAC PDU carrying the fourth message is sent via Msg3 in the random access procedure.

As a sub-embodiment of this embodiment, the MAC PDU carrying the fourth message is sent via MsgA in the random access procedure.

As a sub-embodiment of this embodiment, the MAC PDU carrying the fourth message is sent over the CG-SDT resource in the random access procedure.

As a sub-embodiment of this embodiment, the MAC PDU carrying the fourth message is sent over PUSCH resources scheduled by one DCI; the one DCI (Downlink Control Information ) is scrambled by a C (Cell) -RNTI (Radio Network Temporary Identifier, radio network temporary identity), and the Format of the one DCI is DCI Format (Format) 1_0.

As one embodiment, the first message indicates each radio bearer in the second set of radio bearers.

As one embodiment, the phrase the first message indicates that the second set of radio bearers includes: the first message indicates each radio bearer in the second set of radio bearers.

As one embodiment, the phrase the first message indicates that the second set of radio bearers includes: the radio bearers included in the second set of radio bearers are radio bearers indicated by the first message.

As one embodiment, the phrase the first message indicates that the second set of radio bearers includes: the radio bearers included in the second set of radio bearers are radio bearers indicated by at least one of sdt-DRB-List or sdt-SRB2-Indication in the first message.

As one embodiment, the phrase the first message indicates that the second set of radio bearers includes: only the radio bearers indicated by the first message belong to the second set of radio bearers.

As one embodiment, the phrase the first message indicates that the second set of radio bearers includes: whether a radio bearer belongs to the second set of radio bearers is associated with the first message.

As a sub-embodiment of this embodiment, if one radio bearer is indicated by the first message, the one radio bearer is one radio bearer in the second set of radio bearers.

As a sub-embodiment of this embodiment, if one radio bearer is not indicated by the first message, the one radio bearer is not one radio bearer in the second set of radio bearers.

As one embodiment, the phrase the first message indicates that the second set of radio bearers includes: whether a DRB belongs to the second set of radio bearers is related to sdt-DRB-List in the first message.

As a sub-embodiment of this embodiment, if the sdt-DRB-List indicates at least one DRB, the at least one DRB belongs to the second set of radio bearers.

As a sub-embodiment of this embodiment, if the sdt-DRB-List does not indicate any DRBs, no DRBs are included in the second set of radio bearers.

As a sub-embodiment of this embodiment, if the sdt-DRB-List is not included in the first message, no DRB is included in the second set of radio bearers.

As an embodiment, one condition of the given set of conditions includes: the first uplink data is associated to the second set of radio bearers.

As a sub-embodiment of this embodiment, the given set of conditions is independent of the size of the first upstream data.

As a sub-embodiment of this embodiment, the first uplink data is pending uplink data associated to the second set of radio bearers.

As an embodiment, one condition of the given set of conditions includes: the size of the first uplink data is not greater than the first threshold.

As a sub-embodiment of this embodiment, the given set of conditions is independent of whether the first uplink data is associated to the second set of radio bearers.

As a sub-embodiment of this embodiment, the first uplink data is pending uplink data associated to the first set of radio bearers.

As a sub-embodiment of this embodiment, the first uplink data is the uplink data to be processed of all radio bearers associated to the first node U01.

As one embodiment, one condition of the given set of conditions includes that the first uplink data is associated to the second set of radio bearers and that the size of the first uplink data is not greater than the first threshold.

As an embodiment, the first threshold is configurable.

As an embodiment, the first threshold is preconfigured.

As an embodiment, the unit of the first threshold is a Byte (Byte).

As an embodiment, the unit of the first threshold is a Bit (Bit).

As an example, the first threshold is sdt-datavolemethreshold.

As an embodiment, the first threshold is DataVolumeThreshold.

As an embodiment, the first threshold is configured by an RRC message.

As an embodiment, the first threshold is configured in SIB1.

As one embodiment, the first threshold is configured in an SDT-ConfigCommonSIB.

As an embodiment, one condition of the given set of conditions includes: the fourth message is triggered by a higher layer of the RRC layer.

As an embodiment, one condition of the given set of conditions includes: SIB1 includes sdt-ConfigCommon.

As a sub-embodiment of this embodiment, the first node U01 receives the SIB1 before the fourth message.

As an embodiment, one condition of the given set of conditions includes: the SDT configuration is configured.

As a sub-embodiment of this embodiment, the first node U01 receives the SDT configuration prior to the fourth message.

As an embodiment, one condition of the given set of conditions includes: the lower layer of the RRC layer of the first node U01 indicates that a condition for initiating the first procedure is satisfied.

As an embodiment, the given set of conditions comprises that the fourth message is triggered by a higher layer of the RRC layer, or that SIB1 comprises SDT-ConfigCommon, or that SDT configuration is configured, or that a lower layer of the RRC layer of the first node U01 indicates at least one of the conditions for initiating the first procedure is met.

As an embodiment, the given set of conditions comprises the fourth message being triggered by a further upper layer of the RRC layer, or SIB1 comprising SDT-ConfigCommon, or an SDT configuration being configured, or the size of the first uplink data being not greater than the first threshold, or the first uplink data being associated to at least one of the second set of radio bearers.

As one embodiment, the phrase that the size of the first upstream data is not greater than the first threshold includes: the data amount of the uplink data to be processed of all radio bearers in the second set of radio bearers is less than or equal to the first threshold.

As an embodiment, if the fourth message includes the first information, the fourth message does not include the second information.

As an embodiment, if the fourth message includes the second information, the fourth message does not include the first information.

As an embodiment, the first information is included in the fourth message if each condition of the given set of conditions is fulfilled.

As an embodiment, if each condition of the given set of conditions is satisfied, the first information is included in the fourth message, and resumeau is included in the fourth message, and is set according to an indication of a higher layer of the RRC layer.

As an embodiment, the second information is included in the fourth message if at least one condition of the given set of conditions is not met.

As an embodiment, if at least one condition of the given set of conditions is not met, the second information is included in the fourth message and a resumeau is included in the fourth message, and the resumeau is set according to an indication of a higher layer of the RRC layer.

As one embodiment, the second set of radio bearers is the first set of radio bearers.

As one embodiment, the second set of radio bearers is not the first set of radio bearers.

As an embodiment, the first set of radio bearers and the second set of radio bearers include a same radio bearer.

As an embodiment, the first set of radio bearers and the second set of radio bearers do not include the same radio bearer.

As one embodiment, the first set of radio bearers and the second set of radio bearers are mutually exclusive.

As a sub-embodiment of this embodiment, if one radio bearer belongs to the first set of radio bearers, the one radio bearer does not belong to the second set of radio bearers.

As an embodiment, all DRBs of the first node U01 are included in the first radio bearer set.

As a sub-embodiment of this embodiment, each radio bearer in the second set of radio bearers belongs to the first set of radio bearers.

Example 8

Embodiment 8 illustrates a wireless signal transmission flow diagram associated with a second set of radio bearers according to an embodiment of the application as shown in fig. 8. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S8101, the second message is triggered by a third message; in step S8102, after the second message is triggered by the third message, it is determined that there is first uplink data, and each condition in a given set of conditions is satisfied; in step S8103, each radio bearer in the second set of radio bearers that was suspended is restored along with a fourth message; in step S8104, as a response to the presence of the first uplink data, a fourth message is sent, the fourth message including the first information.

For the followingSecond node N02In step S8201, the fourth message is received.

In embodiment 8, the second message is used to request data transmission in the RRC inactive state; each radio bearer in the first set of radio bearers is recovered with the second message; the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node U01 to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein; a first message is received before the second message is triggered, the first message indicating entry into or maintenance in the RRC inactive state; the first message indicates a second set of radio bearers; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; the second set of radio bearers includes at least one radio bearer therein.

As an embodiment, the fourth message is sent after the second message is triggered by the third message.

As one embodiment, the second message indicates each radio bearer in the first set of radio bearers.

As one embodiment, with the fourth message, if at least one radio bearer in the second set of radio bearers is suspended, each radio bearer in the at least one radio bearer is restored.

As an embodiment, if at least one radio bearer in the second set of radio bearers is not recovered with the second message, the at least one radio bearer in the second set of radio bearers is recovered with the fourth message.

As an embodiment, if one radio bearer belongs to the second set of radio bearers and the one radio bearer does not belong to the first set of radio bearers, the one radio bearer is restored with the fourth message.

As an embodiment, at least one radio bearer of the second set of radio bearers does not belong to the first set of radio bearers.

For one embodiment, the phrase accompanying the fourth message includes: before the fourth message is delivered to the lower layers of the RRC layer.

For one embodiment, the phrase accompanying the fourth message includes: after the content in the fourth message is set up, and before the fourth message is delivered to a lower layer of the RRC layer.

For one embodiment, the phrase accompanying the fourth message includes: before the fourth message is sent.

For one embodiment, the phrase accompanying the fourth message includes: the fourth message is sent before the MAC layer.

For one embodiment, the phrase accompanying the fourth message includes: just when the fourth message is sent at the MAC layer.

For one embodiment, the phrase accompanying the fourth message includes: at least until an acknowledgement message for the fourth message is received.

For one embodiment, the phrase accompanying the fourth message includes: the fourth message is delivered to a lower layer of the RRC layer when a time interval elapses.

Example 9

Embodiment 9 illustrates a first timer related wireless signal transmission flow diagram according to one embodiment of the present application, as shown in fig. 9. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S9101, the second message is triggered by a third message; in step S9102, after the second message is triggered by the third message, it is determined that there is first upstream data, and each condition in a given set of conditions is satisfied; in step S9103, in response to the presence of the first uplink data, a fourth message is sent, the fourth message including the first information; in step S9104, the first timer is started or restarted with the fourth message; in step S9105, during the operation of the first timer, a fifth message is listened to.

For the followingSecond node N02In step S9201, the fourth message is received.

In embodiment 9, the second message is used to request data transmission in the RRC inactive state; each radio bearer in the first set of radio bearers is recovered with the second message; the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node U01 to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein; a first message is received before the second message is triggered, the first message indicating entry into or maintenance in the RRC inactive state; the first message indicates a second set of radio bearers; the second set of radio bearers includes at least one radio bearer therein; the second message is triggered by the third message; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; the fifth message is used to determine to stop the first timer.

As an embodiment, the first timer is started with the second message.

As an embodiment, the first timer is not started with the second message.

As an embodiment, the act of "starting or restarting the first timer with the fourth message" means: starting the first timer if the first timer is not running with the fourth message; and restarting the first timer if the first timer is running.

As an embodiment, the act of "starting or restarting the first timer with the fourth message" means: and starting the first timer along with the fourth message.

As an embodiment, the act of "starting or restarting the first timer with the fourth message" means: and restarting the first timer along with the fourth message.

As an embodiment, the act of "starting or restarting the first timer with the fourth message" means: the act of starting or restarting the first timer is associated with the fourth message.

As an embodiment, the act of "starting or restarting the first timer with the fourth message" means: the act of starting or restarting the first timer is associated with sending the fourth message.

For one embodiment, the phrase accompanying the fourth message includes: just before the fourth message is delivered to the lower layers of the RRC layer.

For one embodiment, the phrase accompanying the fourth message includes: the fourth message is delivered to a lower layer of the RRC layer.

For one embodiment, the phrase accompanying the fourth message includes: when the lower layer of the RRC layer transmits the fourth message for the first time

As an embodiment, the first timer is an RRC layer timer.

As an embodiment, the first timer is configurable.

As one embodiment, the first timer is T319.

As one embodiment, the first timer is T319a.

As one embodiment, the first timer is T319b.

As an embodiment, the maximum value of the first timer is configurable.

As an embodiment, the maximum value of the first timer is preconfigured.

As an embodiment, the maximum value of the first timer is configured by an RRC domain.

As one embodiment, SIB1 message is used to configure the first timer.

As an embodiment, one RRC domain in SIB1 message is used to configure the first timer.

As one embodiment, the ue-timersand timers field in SIB1 message is used to configure the first timer.

As one embodiment, the SDT-ConfigCommonSIB field in SIB1 message is used to configure the first timer.

As an embodiment, the act of starting the first timer means that the first timer starts counting.

As one embodiment, the act of starting the first timer means that the first timer counts up from 0.

As an embodiment, the act of starting the first timer means that the first timer counts down from a maximum value of the one timer.

As an embodiment, the act of restarting the first timer means: the first timer restarts counting.

As an embodiment, the act of restarting the first timer means: resetting the first timer is a start value.

As an embodiment, the act of restarting the first timer means: the first timer counts up again from 0.

As an embodiment, the act of restarting the first timer means: the first timer counts down again from a maximum value of the first timer.

As an embodiment, the act of listening for the fifth message includes: determining whether there is one DCI indicating a PDSCH through monitoring a PDCCH, and the PDSCH carries the fifth message.

As an embodiment, the act of listening for the fifth message includes: determining whether the fifth message is present.

As an embodiment, the act of listening for the fifth message includes: determining whether the fifth message exists through PDSCH coding.

As an embodiment, if the first timer is running, listening for the fifth message.

As an embodiment, the fifth message is listened to while the first timer is running.

As one embodiment, the fifth message is received during the operation of the first timer; the first timer is stopped in response to the fifth message being received.

As an embodiment, the fifth message is not received during the operation of the first timer.

As one embodiment, if the fifth message is received, the first timer is stopped.

As one embodiment, the fifth message is received used to determine to stop the first timer.

As an embodiment, the fifth message is received as a condition to stop the first timer.

As an embodiment, the fifth message is an RRC response to the first message.

As an embodiment, the fifth message is an RRC response to the fourth message.

As an embodiment, the fifth message is a downlink RRC message.

As an embodiment, the fifth message is an RRCRelease message.

As an embodiment, the fifth message is an rrcreseume message.

As an embodiment, the fifth message is an RRCSetup message.

As an embodiment, the fifth message is an RRCReject message.

As an embodiment, the fifth message is any one of RRCReject message or RRCRelease message or RRCResume message or RRCSetup message.

As an embodiment, the fifth message is any one of an RRCRelease message or an RRCResume message.

As one embodiment, during the operation of the first timer, a cell re-selection (cell re-selection) occurs, and the first timer is stopped.

As one embodiment, during the operation of the first timer, a relay reselection (re) occurs, stopping the first timer.

As an embodiment, during the operation of the first timer no cell reselection occurs.

As one embodiment, no relay reselection occurs during the first timer run.

As one embodiment, the first timer expires; in response to expiration of the first timer, the first node U01 enters an RRC IDLE (rrc_idle) state.

As one embodiment, the first timer expires; in response to expiration of the first timer, the first node U01 suspends all radio bearers except SRB 0.

As one embodiment, the first timer expires when the count of the first timer is equal to 0.

As one embodiment, the first timer expires when the count of the first timer is equal to the maximum value of the first timer.

As one embodiment, the first timer expires when the running time of the first timer reaches a maximum value of the first timer.

As an embodiment, the achievement comprises equality.

As an embodiment, the reaching includes being equal to or greater than.

As an embodiment, the first timer has not expired.

Example 10

Embodiment 10 illustrates a schematic diagram of all DRBs in a first set of radio bearers including a first node according to an embodiment of the application, as shown in fig. 10.

In embodiment 10, all DRBs of the first node are included in the first set of radio bearers.

As an embodiment, any radio bearer in the first set of radio bearers is not indicated by the first message.

As an embodiment, any radio bearer in the first set of radio bearers is not indicated by the second message.

As an embodiment, any radio bearer in the first set of radio bearers is not indicated by the third message.

As an embodiment, all DRBs of the first node are all DRBs that the first node is configured in RRC connected state and that are not released upon entering the RRC inactive state.

As an embodiment, all DRBs of the first node are all DRBs that the first node maintains when entering the RRC inactive state.

As an embodiment, all DRBs of the first node are all DRBs that were suspended when the first message was received.

As an embodiment, the phrase that all DRBs in the first set of radio bearers that include the first node include: all DRBs of at least the first node are included in the first set of radio bearers.

As an embodiment, the phrase that all DRBs in the first set of radio bearers that include the first node include: the first radio bearer set includes all DRBs of the first node and SRB2 of the first node.

As an embodiment, the phrase that all DRBs in the first set of radio bearers that include the first node include: the first set of radio bearers consists of all DRBs of the first node.

As an embodiment, the phrase that all DRBs in the first set of radio bearers that include the first node include: the first set of radio bearers consists of all DRBs of the first node and SRB2 of the first node.

As an embodiment, the phrase that all DRBs in the first set of radio bearers that include the first node include: the first set of radio bearers consists of all DRBs of the first node, SRB2 of the first node, and all multicast MRBs of the first node.

Example 11

Embodiment 11 illustrates a schematic diagram in which a third message indicates at least one radio bearer in the first set of radio bearers according to an embodiment of the application, as shown in fig. 11.

In embodiment 11, the third message indicates at least one radio bearer in the first set of radio bearers.

As an embodiment, the phrase that the third message indicates at least one radio bearer in the first set of radio bearers includes: the third message indicates each radio bearer in the first set of radio bearers.

As an embodiment, the phrase that the third message indicates at least one radio bearer in the first set of radio bearers includes: the third message indicates all radio bearers in the first set of radio bearers.

As an embodiment, the phrase that the third message indicates at least one radio bearer in the first set of radio bearers includes: the third message indicates a portion of the radio bearers in the first set of radio bearers.

As an embodiment, the phrase that the third message indicates at least one radio bearer in the first set of radio bearers includes: the third message indicates all or part of the radio bearers in the first set of radio bearers.

As one embodiment, the third message is used to determine the first set of radio bearers.

As one embodiment, the third message explicitly indicates each radio bearer in the first set of radio bearers.

As one embodiment, the third message explicitly indicates at least one radio bearer in the first set of radio bearers.

As one embodiment, the third message implicitly indicates each radio bearer in the first set of radio bearers.

As one embodiment, the third message implicitly indicates at least one radio bearer in the first set of radio bearers.

As an embodiment, the third message includes an identification of all radio bearers in the first set of radio bearers.

As an embodiment, the third message includes an identification of each radio bearer in the first set of radio bearers.

As an embodiment, the third message comprises a sdt-Config field, the sdt-Config field indicating the first set of radio bearers.

As an embodiment, the third message comprises sdt-DRB-List, each DRB indicated by the sdt-DRB-List belonging to the first set of radio bearers.

As an embodiment, the third message comprises sdt-SRB2-Indication, the sdt-SRB2-Indication being set to an allowed Indication that SRB2 belongs to the first set of radio bearers.

As one embodiment, the third message comprises a first information block indicating each radio bearer in the first set of radio bearers; the first information block is associated to the first identity.

As an embodiment, the third message includes a PagingRecord field, and the PagingRecord field includes the first information block and the first identifier.

As an embodiment, the first information block includes at least one RRC domain.

As an embodiment, the first information block includes at least one RRC IE.

As an embodiment, the first information block is sdt-Config.

As an embodiment, the first information block comprises sdt-DRB-List.

As an embodiment, the first information block comprises sdt-SRB2-Indication.

As an embodiment, the first information block is sdt-DRB-List.

As an embodiment, the first information block is sdt-SRB2-Indication.

Example 12A

Embodiment 12A illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the application; as shown in fig. 12A. In fig. 12A, a processing apparatus 1200A in a first node includes a first receiver 1201A and a first transmitter 1202A.

The first receiver 1201A receives a first message indicating entry into or maintenance in an RRC inactive state;

a first transmitter 1202A that transmits a second message for requesting data transmission in the RRC inactive state;

in embodiment 12A, the phrase whether the first set of radio bearers is triggered by a higher layer of the RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first receiver 1201A receives the third message in the RRC inactive state; wherein the second message is triggered by the third message.

As an embodiment, if the second message is triggered by at least the third message, the third message indicates at least one radio bearer of the first set of radio bearers.

As an embodiment, after the second message is triggered by the third message, the first transmitter 1202A sends, as a response to the presence of the first uplink data, a fourth message including the first information or the second information, whether the fourth message includes the first information or the second information is related to whether a given set of conditions is satisfied; wherein the first message indicates a second set of radio bearers; the second message is triggered by the third message; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first processor resumes each radio bearer suspended in the second set of radio bearers accompanying the fourth message if each condition in the given set of conditions is satisfied.

As an embodiment, the first processor, along with the fourth message, starts or restarts a first timer; the first receiver 1201A listens for a fifth message during the operation of the first timer; wherein the fifth message is used to determine to stop the first timer.

As an example, the first receiver 1201A includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1201A includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, and the receive processor 456 of fig. 4 of the present application.

As an example, the first receiver 1201A includes the antenna 452, the receiver 454, and the reception processor 456 of fig. 4 of the present application.

As one example, the first transmitter 1202A includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first transmitter 1202A includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, and the transmit processor 468 of fig. 4 of the present application.

As an example, the first transmitter 1202A includes the antenna 452, the transmitter 454, and the transmit processor 468 of fig. 4 of the application.

As an embodiment, the first processor belongs to the first transmitter 1202A.

As an embodiment, the first processor belongs to the first receiver 1201A.

As an embodiment, the first processor belongs to at least one of the first receiver 1201A or the first transmitter 1202A.

Example 12B

Embodiment 12B illustrates a block diagram of a processing apparatus for use in a first node according to one embodiment of the application; as shown in fig. 12B. In fig. 12B, the processing means 1200B in the first node comprises a first receiver 1201B and a first transmitter 1202B.

The first receiver 1201B receives a first message indicating entry into or maintenance in an RRC inactive state; receiving a third message in the RRC inactive state, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state;

A first transmitter 1202B that transmits a second message for requesting data transmission in the RRC inactive state, the second message being triggered by the third message;

a first processor, associated with the second message, to recover each radio bearer in the first set of radio bearers;

a first transmitter 1202B that, after the second message is triggered by the third message, sends a fourth message including either first information or second information in response to the presence of the first upstream data, the fourth message including whether the first information or the second information is related to whether a given set of conditions is met;

in embodiment 12B, one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

As an embodiment, the first processor, along with the fourth message, starts or restarts the first timer; the first receiver 1201B listens for a fifth message during the first timer run; wherein the fifth message is used to determine to stop the first timer.

As one embodiment, the first message indicates the second set of radio bearers.

As an example, the first receiver 1201B includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1201B includes the antenna 452, the receiver 454, the multi-antenna receive processor 458, and the receive processor 456 of fig. 4 of the present application.

As an example, the first receiver 1201B includes the antenna 452, the receiver 454, and the reception processor 456 of fig. 4 of the present application.

As one example, the first transmitter 1202B includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first transmitter 1202B includes the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, and the transmit processor 468 of fig. 4 of the present application.

As an example, the first transmitter 1202B includes the antenna 452, the transmitter 454, and the transmit processor 468 of fig. 4 of the application.

As an embodiment, the first processor belongs to the first transmitter 1202B.

As an embodiment, the first processor belongs to the first receiver 1201B.

As an embodiment, the first processor belongs to at least one of the first receiver 1201B or the first transmitter 1202B.

Example 13A

Embodiment 13A illustrates a block diagram of a processing apparatus for use in a second node according to one embodiment of the application; as shown in fig. 13A. In fig. 13A, the processing means 1300A in the second node comprises a second transmitter 1301A and a second receiver 1302A.

A second transmitter 1301A transmitting a first message indicating entering or maintaining in an RRC inactive state;

a second receiver 1302A that receives a second message, the second message being used to request data transmission in the RRC inactive state;

in embodiment 13A, each radio bearer in a first set of radio bearers is recovered with the second message, the first set of radio bearers being related to whether the second message is triggered by a higher layer of an RRC layer or by a third message; the phrase whether the first set of radio bearers is triggered by a further upper layer of the RRC layer or by a third message comprises: if the second message is triggered by at least the upper layers of the RRC layer, the first message is used to determine each radio bearer in the first set of radio bearers; if the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the receiver of the first message to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the second transmitter 1301A transmits the third message; wherein the third message is received by a recipient of the first message in the RRC inactive state; the second message is triggered by the third message.

As an embodiment, if the second message is triggered by at least the third message, all DRBs of the first message's recipients are included in the first set of radio bearers.

As an embodiment, the second receiver 1302A receives a fourth message, where the fourth message includes first information or second information, and the fourth message includes whether the first information or the second information is related to whether a given condition set is satisfied; wherein after the second message is triggered by the third message, the fourth message is sent by the recipient of the first message; the presence of first uplink data is used to trigger the fourth message; the first message indicates a second set of radio bearers; the second message is triggered by the third message; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; the second set of radio bearers includes at least one radio bearer therein.

As an embodiment, each radio bearer in the second set of radio bearers suspended is resumed by the recipient of the first message accompanying the fourth message if each condition in the given set of conditions is satisfied.

As an embodiment, the second transmitter 1301A determines whether to transmit a fifth message; wherein during operation of a first timer, the fifth message is listened to by a recipient of the first message; with the fourth message, the first timer is started by or restarted by the recipient of the first message; the fifth message is used to determine to stop the first timer.

As an embodiment, the second transmitter 1301A determines whether to send the fifth message according to whether there is a downlink transmission.

As an embodiment, the second transmitter 1301A determines whether to transmit the fifth message according to whether the second message is received.

As an embodiment, the second transmitter 1301A determines whether to send the fifth message according to whether an ACK for downlink transmission is received.

As an embodiment, the second transmitter 1301A determines whether to send the fifth message according to whether there is an uplink transmission.

As an embodiment, the second transmitter 1301A determines whether to transmit the fifth message according to the fourth message.

As an example, the second transmitter 1301A includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second transmitter 1301A includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 of fig. 4 of the present application.

As an example, the second transmitter 1301A includes the antenna 420, the transmitter 418, and the transmitting processor 416 of fig. 4 of the present application.

As an example, the second receiver 1302A includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second receiver 1302A includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 of fig. 4 of the present application.

As an example, the second receiver 1302A includes the antenna 420, the receiver 418, and the receive processor 470 of fig. 4 of the present application.

Example 13B

Embodiment 13B illustrates a block diagram of a processing apparatus for use in a second node according to one embodiment of the application; as shown in fig. 13B. In fig. 13B, the processing means 1300B in the second node comprises a second transmitter 1301B and a second receiver 1302B.

A second transmitter 1301B transmitting a first message indicating entering or maintaining in an RRC inactive state; transmitting a third message, wherein the third message is used for indicating the first node to perform data transmission in the RRC inactive state;

a second receiver 1302B that receives a second message for requesting data transmission in the RRC inactive state, the second message being triggered by the third message; receiving a fourth message, the fourth message comprising either first information or second information, the fourth message comprising whether the first information or the second information relates to whether a given set of conditions is met;

in embodiment 13, the third message is received by the recipient of the first message in the RRC inactive state; after the second message is triggered by the third message, the fourth message is sent by the receiver of the first message; the presence of first uplink data is used to trigger the fourth message; one condition of the given set of conditions includes at least one of the first uplink data being associated to a second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase the fourth message includes the first information or whether the second information is related to whether a given set of conditions is satisfied includes: said fourth message comprising said first information if each condition of said given set of conditions is met; said fourth message comprising said second information if at least one condition of said given set of conditions is not met; each radio bearer in the first set of radio bearers is recovered by a recipient of the first message with the second message; the first set of radio bearers includes at least one radio bearer therein; the second set of radio bearers includes at least one radio bearer therein.

As one embodiment, determining whether to send a fifth message; wherein during operation of a first timer, the fifth message is listened to by a recipient of the first message; with the fourth message, the first timer is started by or restarted by the recipient of the first message; the fifth message is used to determine to stop the first timer.

As one embodiment, the first message indicates the second set of radio bearers.

As an example, the second transmitter 1301B includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second transmitter 1301B includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 of fig. 4 of the present application.

As an example, the second transmitter 1301B includes the antenna 420, the transmitter 418, and the transmitting processor 416 of fig. 4 of the present application.

As an example, the second receiver 1302B includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second receiver 1302B includes the antenna 420, the receiver 418, the multi-antenna receive processor 472, and the receive processor 470 of fig. 4 of the present application.

As an example, the second receiver 1302B includes the antenna 420 of fig. 4, the receiver 418, and the receive processor 470 of the present application.

Example 14

Embodiment 14 illustrates a transmission flow diagram of a first MAC CE according to one embodiment of the application, as shown in fig. 14. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S14101, it is determined that the second message is triggered by the third message; in step S14102, after the second message is triggered by the third message, it is determined that there is first uplink data; in step S14103, the first MAC CE is transmitted.

For the followingSecond node N02In step S14201, the first MAC CE is received.

In embodiment 14, the first MAC CE indicates at least a size of the first upstream data.

As an embodiment, the first message indicates entering or maintaining in an RRC inactive state; the second message is used to request data transmission in the RRC inactive state; restoring each radio bearer in the first set of radio bearers along with the second message; the second message is triggered by at least the third message, the first message is not used to determine at least one radio bearer in the first set of radio bearers; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

As an embodiment, the fourth message in the present application is sent in response to the presence of the first upstream data.

As an embodiment, the fourth message in the present application is not triggered in response to the presence of the first upstream data.

As an embodiment, the first MAC CE indicates at least a size of the first uplink data.

As a sub-embodiment of this embodiment, the first MAC CE indicates a size of all uplink data including the first uplink data.

As a sub-embodiment of this embodiment, the first MAC CE indicates a size of the first upstream data.

As a sub-embodiment of this embodiment, the first MAC CE is a BSR (Buffer Status Report ) MAC CE.

As a sub-embodiment of this embodiment, the first MAC CE and the MAC sub-header corresponding to the first MAC CE belong to the same MAC sub-PDU (sub-PDU).

As a sub-embodiment of this embodiment, the LCID field in the MAC sub-header corresponding to the first MAC CE is set to 61.

As a sub-embodiment of this embodiment, the LCID field in the MAC sub-header corresponding to the first MAC CE is set to 62.

As a sub-embodiment of this embodiment, the LCID field in the MAC sub-header corresponding to the first MAC CE is set to one of 61 or 62.

As an embodiment, the first message indicates entering or maintaining in an RRC inactive state; the second message is used to request data transmission in the RRC inactive state; restoring each radio bearer in the first set of radio bearers along with the second message; the third message is used for indicating the first node to perform data transmission in the RRC inactive state; the first set of radio bearers includes at least one radio bearer therein.

Example 15

Embodiment 15 illustrates a schematic diagram of a first MAC CE or a fourth message according to an embodiment of the present application, as shown in fig. 15. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the followingFirst node U01In step S15101, determining that the second message is triggered by the third message; in step S15102, after the second message is triggered by the third message, it is determined that there is first uplink data; in step S15103, it is determined whether or not each condition in a given condition set is satisfied, and if each condition in the given condition set is satisfied, the process proceeds to step S15104 (a), and if at least one condition in the given condition set is not satisfied, the process proceeds to step S15104 (b); in step S15104 (a), as a response to the presence of the first upstream data, transmitting the first MAC CE; in step S15104 (b), a fourth message is transmitted as a response to the presence of the first uplink data.

For the followingSecond node N02In step S15201 (a), the first MAC CE is received; in step S15201 (b), the fourth message is received.

In embodiment 15, whether the fourth message is sent or the first MAC CE is sent is related to whether a given set of conditions is met; the first message indicates a second set of radio bearers; one condition of the given set of conditions includes at least one of the first uplink data being associated to the second set of radio bearers or the first uplink data having a size not greater than a first threshold; whether the phrase whether the fourth message is sent or the first MAC CE is sent in relation to whether a given set of conditions is met includes: if each condition in the given set of conditions is met, the first MAC CE is transmitted; if at least one condition of the given set of conditions is not met, the fourth message is sent; the fourth message is an RRC message; the first MAC CE indicates at least a size of the first upstream data; the second set of radio bearers includes at least one radio bearer therein.

As an example, the dashed box F15.1 is optional.

As an example, the dashed box F15.1 exists.

As an example, the dashed box F15.1 does not exist.

As an example, the dashed box F15.2 is optional.

As an example, the dashed box F15.2 exists.

As an example, the dashed box F15.2 does not exist.

As an embodiment only one of said dashed box F15.1 and said dashed box F15.2 is present.

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

As an embodiment, the fourth message is an uplink message.

As an embodiment, the fourth message is transmitted via SRB 1.

As an embodiment, the fourth message is transmitted over DCCH.

As an embodiment, the fourth message is a ueassistance information message.

As an embodiment, the fourth message comprises the second information.

As an embodiment, the second information is a non-sdt-DataIndication.

As an embodiment, the second information comprises a non-sdt-DataIndication.

As an embodiment, the second information includes resumeau.

As an embodiment, after the second message is triggered by the third message, the fourth message or the first MAC CE is sent as a response to the presence of the first upstream data.

As one embodiment, one of the fourth message and the first MAC CE is transmitted.

As an embodiment, the phrase "the first MAC CE indicates at least the size of the first upstream data" means reference to embodiment 14.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The user equipment, the terminal and the UE in the application comprise, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircrafts, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication ) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication equipment. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point, transmitting/receiving node), and other wireless communication devices. The name of the RRC message in the application aims at the NR system, and the same or similar technical effects can be realized by changing the name of the RRC message into the corresponding RRC message in the LTE system. The names of the RRC IE and the RRC domain in the application are aimed at the NR system, and the RRC IE and the RRC domain can be changed into the corresponding RRC IE and the RRC domain in the LTE system to achieve the same or similar technical effects. The application can add version numbers in the names of RRC IE and RRC domain to realize the same or similar technical effects. The RRC message, RRC IE, and RRC domain in the present application are merely illustrative of possible embodiments, and in the specific implementation, the names of the RRC message, RRC IE, and RRC domain are not limited.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, comprising:

the first receiver receiving the third message in the RRC inactive state;

wherein the second message is triggered by the third message.

3. The first node according to claim 1 or 2, characterized in that all DRBs of the first node are comprised in the first set of radio bearers if at least the second message is triggered by the third message.

4. The first node according to claim 1 or 2, characterized in that if at least the second message is triggered by the third message, the third message indicates at least one radio bearer of the first set of radio bearers.

5. The first node according to any of claims 1 to 4, comprising:

after the second message is triggered by the third message, sending a fourth message as a response to the presence of the first uplink data, wherein the fourth message comprises first information or second information, and whether the fourth message comprises the first information or whether the second information is related to whether a given condition set is met or not;

6. The first node of claim 5, comprising:

the first processor, if each condition in the given set of conditions is met, with the fourth message, resumes each radio bearer in the second set of radio bearers that is suspended.

7. The first node according to claim 5 or 6, comprising:

The first processor starts or restarts a first timer along with the fourth message;

the first receiver monitoring for a fifth message during operation of the first timer;

wherein the fifth message is used to determine to stop the first timer.

8. A second node for wireless communication, comprising:

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

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