WO2024160137A1 - Method and apparatus used in wireless communication - Google Patents

Abstract

Disclosed in the present application are a method and apparatus used in wireless communication. The method comprises: a first node receiving a first message, wherein the first message indicates the activation of a PDCP duplication of a first RLC entity; and as a response to the reception of the first message, determining whether to activate the PDCP duplication of the first RLC entity according to whether at least one serving cell associated with the first RLC entity is in a first state, wherein when any serving cell among the at least one serving cell associated with the first RLC entity is not in the first state, the PDCP duplication of the first RLC entity is activated; when all the serving cells among the at least one serving cell associated with the first RLC entity are in the first state, the PDCP duplication of the first RLC entity is not activated; the first RLC entity is an auxiliary RLC entity; and a feature indicating that a serving cell is in the first state comprises the serving cell turning off dynamic-scheduling-based data transmission. The present application realizes duplication transmission during network energy saving.

Description

A method and device for wireless communication Technical Field

The present application relates to methods and devices in wireless communication systems, and more particularly to methods and devices for supporting network energy saving in wireless communication.

Background Art

The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios have different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to study the new air interface technology (NR, New Radio) (or 5G), and the WI (Work Item) of the new air interface technology (NR, New Radio) was passed at the 3GPP RAN #75 plenary meeting, and the standardization work on NR began.

In the new air interface technology, the importance of energy saving in sustainable development, reducing environmental impact and saving costs is obvious. In order to adapt to various application scenarios and meet different needs, 3GPP has been evolving energy-saving technologies.

Duplication transmission is a method proposed in cellular network communications to increase transmission robustness. Duplication transmission can occur at the high layer or the physical layer. It can be transmitted multiple times over the same path, or it can be duplicated on different paths for separate transmission to obtain a combining gain.

Summary of the invention

The inventors found through research that in Release 18 (R18), 3GPP began to study network energy saving (NES), and how to support duplicate transmission in network energy saving scenarios needs to be studied. In response to the above problems, the present application discloses a solution. In the absence of conflict, the embodiments and features in the first node of the present application can be applied to the second node, and vice versa. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other. Further, although the original intention of the present application is for the Uu air interface, the present application can also be used for the PC5 air interface. Further, although the original intention of the present application is for the terminal and base station scenario, the present application is also applicable to the relay and base station, and similar technical effects in the terminal and base station scenario are achieved. Further, although the original intention of the present application is for the scenario where the cell is activated for network energy saving, the present application is also applicable to the scenario where the cell is activated for network energy saving. In addition, the use of a unified solution for different scenarios (including but not limited to V2X scenarios and communication scenarios between terminals and base stations) also helps to reduce hardware complexity and cost. In particular, the interpretation of the terminology, nouns, functions, and variables in this application (unless otherwise specified) can refer to the definitions in the 3GPP specification protocols TS36 series, TS38 series, and TS37 series.

The present application discloses a method in a first node used for wireless communication, characterized by comprising:

receiving a first message indicating activation of PDCP duplication of a first RLC entity, the first RLC entity being associated with a first radio bearer;

In response to receiving the first message, determining whether to activate PDCP duplication of the first RLC entity according to whether at least one serving cell associated with the first RLC entity is in a first state;

Among them, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP copy of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP copy of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the above method is applicable to the scenario where at least one service cell associated with the first RLC (Radio Link Control) entity supports network energy saving.

As an embodiment, a service cell supporting network energy saving includes the service cell being activated and being in the first state.

As an embodiment, a service cell supporting network energy saving includes the service cell being periodically in the first state.

As an embodiment, a service cell supporting network energy saving includes the service cell being in the first state non-periodically.

As an embodiment, in the prior art, as a response to receiving the first message, the first RLC entity (entity) is activated for PDCP replication.

As an embodiment, the problem to be solved by the present application includes: in a scenario where at least one service cell associated with the first RLC entity supports network energy saving, how to support PDCP (Packet Data Convergence Protocol) duplication of the first RLC entity.

As an embodiment, the solution of the present application includes: determining whether to activate PDCP replication according to different states of the at least one service cell associated with the first RLC entity.

As an embodiment, PDCP replication is implemented in the PDCP sublayer of the first node.

As an embodiment, PDCP replication is only for PDCP data PDU (Protocol Data Unit).

As an embodiment, the above method determines whether to activate the PDCP replication of the first RLC entity according to the status of at least one service cell associated with the first RLC entity when receiving the first message.

As an embodiment, the above method effectively supports PDCP duplication of the first RLC entity when at least one serving cell associated with the first RLC entity is in a different state.

As an embodiment, the above method adopts a unified solution to help reduce hardware complexity and cost.

As an embodiment, the above method can achieve the beneficial effect of network energy saving.

As an embodiment, the above method can simultaneously achieve the beneficial effects of network energy saving and transmission robustness.

According to one aspect of the present application, it includes:

After receiving the first message, when any serving cell of the at least one serving cell associated with the first RLC entity starts not being in the first state, activating the PDCP replication of the first RLC entity; when all serving cells of the at least one serving cell associated with the first RLC entity start being in the first state, deactivating the PDCP replication of the first RLC entity;

The second message is not received, and the second message is used to deactivate the PDCP copy of the first RLC entity.

As an embodiment, after receiving the first message, the above method determines whether to activate (activate) the PDCP copy of the first RLC entity, or deactivate (deactivate) the PDCP copy of the first RLC entity according to the status of at least one service cell associated with the first RLC entity.

As an embodiment, the above method can simplify the complexity of transmitting PDCP data PDU between protocol layers by activating and deactivating PDCP duplication of the first RLC entity.

As an embodiment, the above method effectively supports PDCP duplication of the first RLC entity when at least one serving cell associated with the first RLC entity is in a different state.

According to one aspect of the present application, it includes:

receiving a first signaling, where the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first serving cell is in the first state;

The first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the above method flexibly supports the first serving cell being in the first state.

As an embodiment, the above method quickly supports the first service cell to be in the first state.

According to one aspect of the present application, it includes:

receiving a second signaling, where the second signaling is an RRC signaling; the second signaling indicates a cycle and an on-duration time;

The duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

According to one aspect of the present application, it includes:

When all the secondary RLC entities of the at least one secondary RLC entity are not activated for PDCP replication, the first radio bearer is not activated for PDCP replication;

The at least one secondary RLC entity is associated with the first radio bearer, and the at least one secondary RLC entity includes the first RLC entity.

According to one aspect of the present application, it includes:

When the first RLC entity is activated for PDCP duplication, the first radio bearer is activated for PDCP duplication.

According to one aspect of the present application, it includes:

Copying a PDCP data PDU and delivering the PDCP data PDU to at least one RLC entity for transmission;

The at least one RLC entity is associated with the first radio bearer, PDCP replication is activated for the at least one RLC entity, and the at least one RLC entity includes the first RLC entity.

As an embodiment, the above method improves transmission robustness.

The present application discloses a method used in a second node of wireless communication, characterized by comprising:

Sending a first message, the first message indicating activation of PDCP replication of a first RLC entity, the first RLC entity being associated with a first radio bearer;

Among them, whether at least one service cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

According to one aspect of the present application, it includes:

After the first message is received, when any of the at least one serving cell associated with the first RLC entity begins to be not in the first state, the PDCP duplication of the first RLC entity is activated; when all of the at least one serving cell associated with the first RLC entity begin to be in the first state, the PDCP duplication of the first RLC entity is deactivated;

The second message is not received, and the second message is used to deactivate the PDCP copy of the first RLC entity.

According to one aspect of the present application, it includes:

Sending a first signaling, where the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first serving cell is in the first state;

The first service cell is one of the at least one service cell associated with the first RLC entity.

According to one aspect of the present application, it includes:

Sending a second signaling, where the second signaling is an RRC signaling; the second signaling indicates a cycle and an on-duration time;

The duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

According to one aspect of the present application, it includes:

When all the secondary RLC entities of the at least one secondary RLC entity are not activated for PDCP replication, the first radio bearer is not activated for PDCP replication;

The at least one secondary RLC entity is associated with the first radio bearer, and the at least one secondary RLC entity includes the first RLC entity.

According to one aspect of the present application, it includes:

When the first RLC entity is activated for PDCP duplication, the first radio bearer is activated for PDCP duplication.

According to one aspect of the present application, it includes:

The PDCP data PDU is replicated and delivered to at least one RLC entity for transmission; wherein the at least one RLC entity is associated with the first radio bearer, the at least one RLC entity is activated for PDCP replication, and the at least one RLC entity includes the first RLC entity.

The present application discloses a first node used for wireless communication, characterized in that it includes:

A first receiver receives a first message, wherein the first message indicates activation of PDCP duplication of a first RLC entity, the first RLC entity being associated with a first radio bearer;

a first transmitter, in response to receiving the first message, determining whether to activate PDCP duplication of the first RLC entity according to whether at least one serving cell associated with the first RLC entity is in a first state;

Among them, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP copy of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP copy of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

The present application discloses a second node used for wireless communication, characterized in that it includes:

A second transmitter sends a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first radio bearer;

Among them, whether at least one service cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

The present application discloses a method in a first node used for wireless communication, characterized by comprising:

receiving a first message indicating activation of PDCP duplication of a first RLC entity, the first RLC entity being associated with a first radio bearer, the first RLC entity being associated with at least one serving cell;

activating PDCP duplication of the first RLC entity in response to receiving the first message;

Generate a first PDCP data PDU;

determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one serving cell associated with the first RLC entity is in a first state;

Among them, when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is copied and the first PDCP data PDU is delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the above method is applicable to the scenario where at least one service cell associated with the first RLC (Radio Link Control) entity supports network energy saving.

As an embodiment, a service cell supporting network energy saving includes the service cell being activated and being in the first state.

As an embodiment, a service cell supporting network energy saving includes the service cell being periodically in the first state.

As an embodiment, a service cell supporting network energy saving includes the service cell being in the first state non-periodically.

As an embodiment, the problem to be solved by the present application includes: in a scenario where at least one service cell associated with the first RLC entity supports network energy saving, how to support PDCP (Packet Data Convergence Protocol) duplication of the first RLC entity.

As an embodiment, the solution of the present application includes: determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to the different states of the at least one service cell associated with the first RLC entity.

As an embodiment, PDCP replication is implemented in the PDCP sublayer of the first node.

As an embodiment, PDCP replication is only for PDCP data PDU (Protocol Data Unit).

As an embodiment, the above method can improve transmission robustness by activating PDCP replication of the first RLC entity through the first message.

As an embodiment, the above method effectively supports PDCP duplicate transmission of the first RLC entity when at least one serving cell associated with the first RLC entity is in a different state.

As an embodiment, the above method adopts a unified solution to help reduce hardware complexity and cost.

As an embodiment, the above method can achieve the beneficial effect of network energy saving.

As an embodiment, the above method can simultaneously achieve the beneficial effects of network energy saving and transmission robustness.

According to one aspect of the present application, it includes:

When all the service cells of the at least one service cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, the first data PDU is generated immediately and delivery of the first PDCP data PDU to the first RLC entity is abandoned.

As an embodiment, the above method avoids the accumulation of PDCP data PDU at the first RLC entity causing packet loss.

According to one aspect of the present application, it includes:

The abandoning of delivering the first PDCP data PDU to the first RLC entity includes: delivering the first PDCP data PDU to at least one RLC entity outside the first RLC entity, and the at least one RLC entity is associated with the first radio bearer.

According to one aspect of the present application, it includes:

The abandoning of delivering the first PDCP data PDU to the first RLC entity comprises: delivering the first PDCP data PDU to the first RLC entity after a first time interval is extended from the generation of the first PDCP data PDU;

The first time interval value is less than the expiration value of the first timer, and the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, after the first time interval is postponed from the generation of the first PDCP data PDU, at least one of the at least one serving cell associated with the first RLC entity is no longer in the first state.

As an embodiment, within the duration of the first time interval starting from the generation of the first PDCP data PDU, all service cells of the at least one service cell associated with the first RLC entity are in the first state.

As an embodiment, the above method can improve transmission robustness.

As an embodiment, the above method can obtain time diversity gain.

According to one aspect of the present application, it includes:

The abandonment of delivering the first PDCP data PDU to the first RLC entity comprises: from the time when the first PDCP data PDU is generated to the time when a first timer expires, the first PDCP data PDU is not delivered to the first RLC entity;

Wherein, the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, during the duration from the generation of the first PDCP data PDU to the expiration of the first timer, all service cells of the at least one service cell associated with the first RLC entity are in the first state.

As an embodiment, the above method avoids the accumulation of PDCP data PDU at the first RLC entity causing packet loss.

According to one aspect of the present application, it includes:

receiving a first signaling, where the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first serving cell is in the first state;

The first service cell is one of the at least one service cell associated with the first RLC entity.

According to one aspect of the present application, it includes:

receiving a second signaling, where the second signaling is an RRC signaling; the second signaling indicates a cycle and an on-duration time;

The duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

The present application discloses a method used in a second node of wireless communication, characterized by comprising:

Sending a first message, the first message indicating activation of PDCP replication of a first RLC entity, the first RLC entity being associated with a first radio bearer, and the first RLC entity being associated with at least one serving cell;

Among them, the first message is used to activate PDCP replication of the first RLC entity; a first PDCP data PDU is generated; whether the at least one service cell associated with the first RLC entity is in a first state is used to determine whether the first PDCP data PDU is replicated and delivered to the first RLC entity; when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is replicated and delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

According to one aspect of the present application, it includes:

When all of the at least one serving cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, immediately after the first data PDU is generated, the first PDCP data PDU is not delivered to the first RLC entity.

According to one aspect of the present application, it includes:

The first PDCP data PDU is not delivered to the first RLC entity includes: the first PDCP data PDU is delivered to at least one RLC entity other than the first RLC entity, and the at least one RLC entity is associated with the first radio bearer.

According to one aspect of the present application, it includes:

The first PDCP data PDU is not delivered to the first RLC entity, including: the first PDCP data PDU is delivered to the first RLC entity after a first time interval is delayed from when the first PDCP data PDU is generated;

The first time interval value is less than the expiration value of the first timer, and the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

According to one aspect of the present application, it includes:

The first PDCP data PDU is not delivered to the first RLC entity including: from the generation of the first PDCP data PDU to the expiration of the first timer, the first PDCP data PDU is not delivered to the first RLC entity; wherein, the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

According to one aspect of the present application, it includes:

Sending a first signaling, where the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first serving cell is in the first state;

The first service cell is one of the at least one service cell associated with the first RLC entity.

According to one aspect of the present application, it includes:

Sending a second signaling, where the second signaling is an RRC signaling; the second signaling indicates a cycle and an on-duration time;

The duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

The present application discloses a first node used for wireless communication, characterized in that it includes:

A first receiver receives a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated with a first radio bearer, and the first RLC entity is associated with at least one serving cell;

a first transmitter, in response to receiving the first message, activating PDCP replication of the first RLC entity; generating a first PDCP data PDU; determining whether to replicate the first PDCP data PDU and delivering the first PDCP data PDU to the first RLC entity according to whether the at least one serving cell associated with the first RLC entity is in a first state;

Among them, when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is copied and the first PDCP data PDU is delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

The present application discloses a second node used for wireless communication, characterized in that it includes:

A second transmitter sends a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated with a first radio bearer, and the first RLC entity is associated with at least one serving cell;

Among them, the first message is used to activate PDCP replication of the first RLC entity; a first PDCP data PDU is generated; whether the at least one service cell associated with the first RLC entity is in a first state is used to determine whether the first PDCP data PDU is replicated and delivered to the first RLC entity; when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is replicated and delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1A illustrates a signal transmission flow chart of a first node according to an embodiment of the present application;

FIG1B illustrates a signal transmission flow chart of a first node according to an embodiment of the present application;

FIG2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application;

FIG3 illustrates a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

FIG4 illustrates a schematic diagram of hardware modules of a communication device according to an embodiment of the present application;

FIG5A illustrates a wireless signal transmission flow chart according to an embodiment of the present application;

FIG5B illustrates a wireless signal transmission flow chart according to an embodiment of the present application;

FIG6A illustrates a flowchart of a first node's response processing to receiving a first message according to an embodiment of the present application;

FIG6B illustrates a processing flow chart of a first node when generating a first PDCP data PDU according to an embodiment of the present application;

FIG7A illustrates a processing flow chart of a first node after receiving a first message according to an embodiment of the present application;

FIG7B illustrates a schematic diagram of the relationship between a first message, a first PDCP data PDU and a first RLC entity according to an embodiment of the present application;

[Corrected 26.02.2024 in accordance with Article 91]
FIG8A illustrates a schematic diagram of the relationship between a first radio bearer, a first RLC entity and a first serving cell according to an embodiment of the present application;

FIG8B illustrates a schematic diagram of the relationship between a first message, a first PDCP data PDU and a first RLC entity according to an embodiment of the present application;

FIG9A illustrates a schematic diagram of the time relationship between a serving cell associated with a first RLC entity being in a first state and not being in the first state according to an embodiment of the present application;

FIG9B illustrates a schematic diagram of the relationship between a first message, a first PDCP data PDU and a first RLC entity according to an embodiment of the present application;

FIG10 illustrates a schematic diagram of the relationship between the state of at least one serving cell associated with the first RLC entity and the PDCP duplication of the first RLC entity according to an embodiment of the present application;

FIG11 illustrates a flow chart of signal processing in a first node according to an embodiment of the present application;

FIG12A illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application;

FIG12B illustrates a schematic diagram of the state of at least one serving cell associated with a first RLC entity according to an embodiment of the present application;

FIG13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application;

FIG14 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application;

FIG15 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application.

DETAILED DESCRIPTION

The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Example 1A

Embodiment 1A illustrates a signal transmission flow chart of a first node according to an embodiment of the present application, as shown in FIG. 1A .

In embodiment 1A, the first node 100A receives a first message in step 101A, and the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first radio bearer; in step 102A, as a response to receiving the first message, it is determined whether to activate the PDCP replication of the first RLC entity according to whether at least one service cell associated with the first RLC entity is in a first state; wherein, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, a first message is received.

As an embodiment, the first message is received via an air interface.

As an embodiment, the air interface includes a Uu air interface.

As an embodiment, the air interface includes a PC5 air interface.

As an embodiment, the first message is a high-level message.

As an embodiment, the first message is a MAC (Medium Access Control) sublayer message.

As an embodiment, the first message is MAC CE (Control Element).

As an embodiment, the first message indicates activation of PDCP duplication of the first RLC entity.

As an embodiment, the first message indicates activation of PDCP replication of the first radio bearer.

As an embodiment, the first message is Duplication Activation MAC CE.

As an embodiment, the first message is Duplication Activation/Deactivation MAC CE.

As an embodiment, the first message implicitly indicates the first radio bearer.

As an embodiment, the first message includes an index of the first radio bearer.

As an embodiment, the first message includes an integer multiple of 8 bits, and the integer multiple of 8 bits correspond to the radio bearer identifiers of the radio bearers configured with PDCP replication, which are sorted from low to high from low; if the first message includes 8 bits, the first node includes 5 radio bearers configured with PDCP replication, and the radio bearer identifiers of the 5 radio bearers configured with PDCP replication are 15, 12, 9, 6, and 3, respectively; the lowest bit of the first message, that is, the 0 bit, indicates whether the radio bearer with the radio bearer identifier of 3 activates PDCP replication, and the second lowest bit of the first message, that is, the 1 bit, indicates whether the radio bearer with the radio bearer identifier of 6 activates PDCP replication, and so on; when the 0 bit among the 8 bits included in the first message is set to 1, it indicates that the radio bearer with the radio bearer identifier of 3 is activated for PDCP replication, and when the 0 bit among the 8 bits included in the first message is set to 0, it indicates that the radio bearer with the radio bearer identifier of 3 is deactivated for PDCP replication, and so on, which will not be repeated.

As an embodiment, when the first message indicates activation of PDCP replication of a first radio bearer, the first message implicitly indicates activation of PDCP replication of all RLC entities associated with the first radio bearer.

As an embodiment, the first message implicitly indicates the first RLC entity.

As an embodiment, the first radio bearer is associated with at least one RLC entity, and the first message indicates activation of the at least one RLC entity associated with the first radio bearer; wherein the at least one RLC entity includes the first RLC entity.

As an embodiment, the first radio bearer is associated with at least one RLC entity, and the first message indicates activation of the at least one RLC entity associated with the first radio bearer; wherein the at least one RLC entity includes the first RLC entity, and the at least one RLC entity performs low layer transmission through a MAC entity that receives the first message.

As an embodiment, the first message indicates activation of the PDCP replication of the first RLC entity associated with the first radio bearer.

As an embodiment, the first message is Duplication RLC Activation MAC CE.

As an embodiment, the first message is Duplication RLC Activation/Deactivation MAC CE.

As an embodiment, the first message explicitly indicates the first radio bearer.

As an embodiment, the first message includes a radio bearer identifier of the first radio bearer.

As an embodiment, the first message implicitly indicates the first RLC entity.

As an embodiment, the first message includes an index of the first RLC entity.

As an embodiment, the first message includes at least 3 bits, and the at least 3 bits are sorted from low to high corresponding to the logical channel identifier of the logical channel corresponding to the RLC entity associated with the wireless bearer configured with PDCP replication; if the first message includes 8 bits, the high 5 bits of the first message indicate the wireless bearer identifier of the wireless bearer configured with PDCP replication, and the low 3 bits of the first message indicate whether the RLC entity associated with the corresponding wireless bearer activates PDCP replication; if the logical channel identifiers corresponding to the RLC entity associated with a wireless bearer are 8, 6, and 3 respectively, the lowest bit, i.e., bit 0, indicates whether the RLC entity corresponding to the logical channel with the logical channel identifier of 3 is activated, and the second lowest bit, i.e., bit 1, indicates whether the RLC entity corresponding to the logical channel with the logical channel identifier of 6 is activated, and so on; when bit 0 is set to 1, it indicates that the RLC entity corresponding to the logical channel with the logical channel identifier of 3 is activated for PDCP replication, and when bit 0 is set to 0, it indicates that the RLC entity corresponding to the logical channel with the logical channel identifier of 3 is deactivated for PDCP replication.

As an embodiment, the first RLC entity is associated with the first radio bearer including: data units of the first radio bearer are transmitted through the first RLC entity.

As an embodiment, the first RLC entity being associated with the first radio bearer includes: the first RLC entity serving the first radio bearer.

As an embodiment, the first RLC entity is associated with the first wireless bearer including: the data unit of the first PDCP entity is transmitted through the first RLC entity, and the first wireless bearer includes the first PDCP entity.

As an embodiment, the first radio bearer is DRB (Data Radio Bearer).

As an embodiment, the first radio bearer is MRB (MBS Radio Bearer, multicast/broadcast service radio bearer).

As an embodiment, the first radio bearer is SRB (Signaling Radio Bearer).

As an embodiment, in response to receiving the first message, whether to activate the PDCP replication of the first RLC entity is determined based on whether at least one serving cell associated with the first RLC entity is in a first state.

As an embodiment, at least one service cell associated with the first RLC entity includes a special cell (Special Cell, SpCell).

As an embodiment, at least one service cell associated with the first RLC entity includes a secondary cell.

As an embodiment, at least one service cell associated with the first RLC entity includes only a secondary cell.

As an embodiment, the communication counterpart RLC entity of the first RLC entity is located in MgNB (primary gNB).

As a sub-embodiment of the above embodiment, the at least one service cell associated with the first RLC entity includes a primary cell.

As an embodiment, the communication counterpart RLC entity of the first RLC entity is located in SgNB (secondary gNB).

As a sub-embodiment of the above embodiment, the at least one service cell associated with the first RLC entity includes a primary SCG (Secondary cell group) cell (Primary SCG Cell, PSCell).

As an embodiment, the first state is a network energy-saving state.

As an embodiment, the first state belongs to the cell DTX (Discontinuous Transmission) state.

As an embodiment, the first state belongs to the cell DRX (Discontinuous Reception) state.

As an embodiment, the first state belongs to the cell DTX state and the cell DRX state.

As an embodiment, the first state is an inactive cell state.

As an embodiment, the first state includes a cell sending inactive state.

As an embodiment, the first state includes a cell reception inactive state.

As an embodiment, the first state includes a cell sending inactive state and a cell receiving inactive state.

As an embodiment, the characteristics of a service cell being in the first state include the service cell turning off data transmission based on dynamic scheduling.

As an embodiment, turning off data transmission based on dynamic scheduling includes: turning off dynamic scheduling.

As an embodiment, shutting down data transmission based on dynamic scheduling includes: shutting down downlink transmission based on dynamic scheduling.

As an embodiment, shutting down data transmission based on dynamic scheduling includes: shutting down uplink reception based on dynamic scheduling.

As an embodiment, shutting down data transmission based on dynamic scheduling includes: shutting down downlink transmission based on dynamic scheduling and shutting down uplink reception based on dynamic scheduling.

As an embodiment, shutting down means stopping.

As an embodiment, the shut down means that the process stops.

As an embodiment, the shut down means that the radio frequency is shut down.

As an embodiment, the characteristics of a service cell being in the first state include that the service cell shuts down all data traffic and reference signal transmissions.

As an embodiment, the transmission includes at least one of sending and receiving.

As an embodiment, the characteristic of a service cell being in the first state includes that the service cell shuts down all data service transmissions.

As an embodiment, the characteristic that a serving cell is in the first state includes that the serving cell only transmits a reference signal.

As an embodiment, the characteristics of a service cell being in the first state include that the service cell turns off sending SIB (System Information Block).

As an embodiment, the characteristic that a serving cell is in the first state includes that the serving cell turns off sending part of SIBs.

As an embodiment, the characteristics of a service cell being in the first state include that the service cell turns off sending SSB (Synchronization Signal Block).

As an embodiment, the characteristic of a service cell being in the first state includes that the service cell turns off sending SSB (SS/PBCH, synchronization signal/physical broadcast channel).

As an embodiment, the characteristic that a serving cell is in the first state includes that the serving cell turns off sending paging messages.

As an embodiment, the reference signal includes CSI (Channel Status Information)-RS.

As an embodiment, the reference signal includes PRS (Positioning Reference Signal).

As an embodiment, a service cell is not in the first state means that the service cell is not in a network energy-saving state.

As an embodiment, a serving cell is not in the first state includes: the serving cell sends a SIB.

As an embodiment, a service cell is not in the first state includes: the service cell sends SSB.

As an embodiment, a service cell is not in the first state includes: the service cell sends a paging message.

As an embodiment, a serving cell is not in the first state includes: the serving cell sends a reference message.

As an embodiment, a service cell is not in the first state includes: the service cell performs data transmission based on dynamic scheduling.

As an embodiment, a service cell is not in the first state including: the service cell performs all data services (data traffic) and reference signal (reference signal) transmission.

As an embodiment, a service cell is not in the first state includes: the service cell performs all data service transmissions.

As an embodiment, the one serving cell is a secondary cell.

As an embodiment, the one serving cell is a primary cell.

As an embodiment, the one service cell is a special cell.

As an embodiment, the one service cell is a primary SCG cell.

As an embodiment, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP duplication of the first RLC entity is activated.

As an embodiment, when at least one serving cell associated with the first RLC entity is not in the first state, the PDCP duplication of the first RLC entity is activated.

As an embodiment, the first transmitter activates the PDCP replication of the first RLC entity when any of the at least one serving cell associated with the first RLC entity is not in the first state.

As an embodiment, the first transmitter activates the PDCP replication of the first RLC entity when at least one service cell associated with the first RLC entity is not in the first state.

As an embodiment, when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP duplication of the first RLC entity is not activated.

As an embodiment, the first transmitter abandons activating the PDCP copy of the first RLC entity when all of the at least one service cell associated with the first RLC entity are in the first state.

As an embodiment, PDCP replication is activated for the first RLC entity only when any of the at least one serving cell associated with the first RLC entity is not in the first state.

As an embodiment, PDCP replication is activated for the first RLC entity only when at least one serving cell associated with the first RLC entity is not in the first state.

As an embodiment, the first RLC entity is a secondary RLC entity.

As an embodiment, the first RLC entity is a split secondary RLC entity.

As an embodiment, the first RLC entity is not a master RLC entity.

As an embodiment, the first RLC entity belongs to a secondary path.

As an embodiment, the first RLC entity does not belong to a primary path.

As an embodiment, the first PDCP entity is associated with a primary RLC entity and at least one secondary RLC entity, and the at least one secondary RLC entity includes the first RLC entity.

Example 1B

Embodiment 1B illustrates a signal transmission flow chart of a first node according to an embodiment of the present application, as shown in FIG. 1B .

In embodiment 1B, the first node 100B receives a first message in step 101B; in response to receiving the first message in step 102B, activates PDCP replication of the first RLC entity; generates a first PDCP data PDU in step 103B; in step 104B, determines whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in a first state; wherein the first message indicates activation of PDCP replication of the first RLC entity, the first RLC entity is associated with a first wireless bearer, and the first RLC entity is associated with at least one service cell; when at least one of the at least one service cell associated with the first RLC entity is not in the first state, copies the first PDCP data PDU and delivers the first PDCP data PDU to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, a first message is received.

As an embodiment, the first message is received via an air interface.

As an embodiment, the air interface includes a Uu air interface.

As an embodiment, the air interface includes a PC5 air interface.

As an embodiment, the first message is a high-level message.

As an embodiment, the first message is a MAC (Medium Access Control) sublayer message.

As an embodiment, the first message is MAC CE (Control Element).

As an embodiment, the first message indicates activation of PDCP duplication of the first RLC entity.

As an embodiment, the first message indicates activation of PDCP replication of the first radio bearer.

As an embodiment, the first message is Duplication Activation MAC CE.

As an embodiment, the first message is Duplication Activation/Deactivation MAC CE.

As an embodiment, the first message implicitly indicates the first radio bearer.

As an embodiment, the first message includes an index of the first radio bearer.

As an embodiment, the first message includes an integer multiple of 8 bits, and the integer multiple of 8 bits correspond to the radio bearer identifiers of the radio bearers configured with PDCP replication, which are sorted from low to high from low; if the first message includes 8 bits, the first node includes 5 radio bearers configured with PDCP replication, and the radio bearer identifiers of the 5 radio bearers configured with PDCP replication are 15, 12, 9, 6, and 3, respectively; the lowest bit of the first message, that is, the 0 bit, indicates whether the radio bearer with the radio bearer identifier of 3 activates PDCP replication, and the second lowest bit of the first message, that is, the 1 bit, indicates whether the radio bearer with the radio bearer identifier of 6 activates PDCP replication, and so on; when the 0 bit among the 8 bits included in the first message is set to 1, it indicates that the radio bearer with the radio bearer identifier of 3 is activated for PDCP replication, and when the 0 bit among the 8 bits included in the first message is set to 0, it indicates that the radio bearer with the radio bearer identifier of 3 is deactivated for PDCP replication, and so on, which will not be repeated.

As an embodiment, when the first message indicates activation of PDCP replication of a first radio bearer, the first message implicitly indicates activation of PDCP replication of all RLC entities associated with the first radio bearer.

As an embodiment, the first message implicitly indicates the first RLC entity.

As an embodiment, the first radio bearer is associated with at least one secondary RLC entity, and the first message indicates activation of the at least one secondary RLC entity associated with the first radio bearer; wherein the at least one secondary RLC entity includes the first RLC entity.

As an embodiment, the first radio bearer is associated with at least one secondary RLC entity, and the first message indicates the activation of the at least one secondary RLC entity associated with the first radio bearer; wherein the at least one secondary RLC entity includes the first RLC entity, and the at least one secondary RLC entity performs low layer transmission through a MAC entity that receives the first message.

As an embodiment, the first message indicates activation of the PDCP replication of the first RLC entity associated with the first radio bearer.

As an embodiment, the first message is Duplication RLC Activation MAC CE.

As an embodiment, the first message is Duplication RLC Activation/Deactivation MAC CE.

As an embodiment, the first message explicitly indicates the first radio bearer.

As an embodiment, the first message includes a radio bearer identifier of the first radio bearer.

As an embodiment, the first message implicitly indicates the first RLC entity.

As an embodiment, the first message includes an index of the first RLC entity.

As an embodiment, the first message includes at least 3 bits, and the at least 3 bits are arranged from low to high in correspondence with the logical channel identifier of the logical channel corresponding to the RLC entity associated with the wireless bearer configured with PDCP replication; if the first message includes 8 bits, the high 5 bits of the first message indicate the wireless bearer identifier of the wireless bearer configured with PDCP replication, and the low 3 bits of the first message indicate whether the RLC entity associated with the corresponding wireless bearer activates PDCP replication; if the logical channel identifiers corresponding to the RLC entity associated with a wireless bearer are 8, 6, and 3 respectively, the lowest bit, i.e., bit 0, indicates whether the RLC entity corresponding to the logical channel with the logical channel identifier of 3 is activated, the second lowest bit, i.e., bit 1, indicates whether the RLC entity corresponding to the logical channel with the logical channel identifier of 6 is activated, and so on; when bit 0 is set to 1, it indicates that the RLC entity corresponding to the logical channel with the logical channel identifier of 3 is activated for PDCP replication, and when bit 0 is set to 0, it indicates that the RLC entity corresponding to the logical channel with the logical channel identifier of 3 is deactivated for PDCP replication.

As an embodiment, the first RLC entity is associated with the first radio bearer including: data units of the first radio bearer are transmitted through the first RLC entity.

As an embodiment, a data unit is an SDU (service data unit).

As an embodiment, a data unit is a PDU (protocol data unit).

As an embodiment, the first RLC entity being associated with the first radio bearer includes: the first RLC entity serving the first radio bearer.

As an embodiment, the first RLC entity is associated with a first radio bearer.

As an embodiment, the first RLC entity is associated with the first radio bearer including: data units of the first radio bearer are transmitted through the first RLC entity.

As an embodiment, the first RLC entity is associated with the first wireless bearer including: the data unit of the first PDCP entity is transmitted through the first RLC entity, and the first wireless bearer includes the first PDCP entity.

As an embodiment, the first radio bearer is DRB (Data Radio Bearer).

As an embodiment, the first radio bearer is MRB (MBS Radio Bearer, multicast/broadcast service radio bearer).

As an embodiment, the first radio bearer is SRB (Signaling Radio Bearer).

As an embodiment, the first RLC entity is associated with at least one serving cell.

As an embodiment, the at least one service cell associated with the first RLC entity includes a special cell (Special Cell, SpCell).

As an embodiment, the at least one service cell associated with the first RLC entity includes a secondary cell.

As an embodiment, the at least one service cell associated with the first RLC entity only includes a secondary cell.

As an embodiment, the communication counterpart RLC entity of the first RLC entity is located in MgNB (primary gNB).

As a sub-embodiment of the above embodiment, the at least one service cell associated with the first RLC entity includes a primary cell.

As an embodiment, the communication counterpart RLC entity of the first RLC entity is located in SgNB (secondary gNB).

As a sub-embodiment of the above embodiment, the at least one service cell associated with the first RLC entity includes a primary SCG (Secondary cell group) cell (Primary SCG Cell, PSCell).

As an embodiment, in response to receiving the first message, PDCP replication of the first RLC entity is activated.

As an embodiment, after the PDCP replication of the first RLC entity is activated, the first RLC entity is used to transmit data units of the first radio bearer.

As an embodiment, a first PDCP SDU is received, and the first PDCP SDU is used to generate a first PDCP data PDU.

As an embodiment, the first PDCP SDU is received from an upper layer protocol entity of the first PDCP entity.

As an embodiment, the first PDCP SDU is received from an SDAP entity.

As an embodiment, the first PDCP SDU is received inside the first node.

As an embodiment, the first transmitter generates the first PDCP data PDU in the first PDCP entity.

As an embodiment, the first PDCP SDU is processed by the PDCP sublayer to generate the first PDCP data PDU.

As an embodiment, the processing includes header compression.

As an embodiment, the processing includes uplink data compression (data compression).

As an embodiment, the processing includes associating a count (COUNT) value with the first PDCP SDU.

As an embodiment, the processing includes setting a sequence number (SN) for the first PDCP SDU.

As an embodiment, whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity is determined according to whether the at least one serving cell associated with the first RLC entity is in a first state.

As an embodiment, determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in the first state includes: determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in the first state when generating the first PDCP data PDU.

As an embodiment, determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in the first state includes: immediately after generating the first PDCP data PDU, determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in the first state.

As an embodiment, determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in the first state includes: determining whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in the first state is executed after the first PDCP data PDU is generated.

As an embodiment, the first state is a network energy-saving state.

As an embodiment, the first state belongs to the cell DTX (Discontinuous Transmission) state.

As an embodiment, the first state belongs to the cell DRX (Discontinuous Reception) state.

As an embodiment, the first state belongs to the cell DTX state and the cell DRX state.

As an embodiment, the first state is an inactive cell state.

As an embodiment, the first state includes a cell sending inactive state.

As an embodiment, the first state includes a cell reception inactive state.

As an embodiment, the first state includes a cell sending inactive state and a cell receiving inactive state.

As an embodiment, the characteristics of a service cell being in the first state include the service cell turning off data transmission based on dynamic scheduling.

As an embodiment, turning off data transmission based on dynamic scheduling includes: turning off dynamic scheduling.

As an embodiment, shutting down data transmission based on dynamic scheduling includes: shutting down downlink transmission based on dynamic scheduling.

As an embodiment, shutting down data transmission based on dynamic scheduling includes: shutting down uplink reception based on dynamic scheduling.

As an embodiment, shutting down data transmission based on dynamic scheduling includes: shutting down downlink transmission based on dynamic scheduling and shutting down uplink reception based on dynamic scheduling.

As an embodiment, shutting down means stopping.

As an embodiment, the shut down means that the process stops.

As an embodiment, the shut down means that the radio frequency is shut down.

As an embodiment, the characteristics of a service cell being in the first state include that the service cell shuts down all data traffic and reference signal transmissions.

As an embodiment, the transmission includes at least one of sending and receiving.

As an embodiment, the characteristic of a service cell being in the first state includes that the service cell shuts down all data service transmissions.

As an embodiment, the characteristic that a serving cell is in the first state includes that the serving cell only transmits a reference signal.

As an embodiment, the characteristics of a service cell being in the first state include that the service cell turns off sending SIB (System Information Block).

As an embodiment, the characteristic that a serving cell is in the first state includes that the serving cell turns off sending part of SIBs.

As an embodiment, the characteristics of a service cell being in the first state include that the service cell turns off sending SSB (Synchronization Signal Block).

As an embodiment, the characteristic of a service cell being in the first state includes that the service cell turns off sending SSB (SS/PBCH, synchronization signal/physical broadcast channel).

As an embodiment, the characteristic that a serving cell is in the first state includes that the serving cell turns off sending paging messages.

As an embodiment, the reference signal includes CSI (Channel Status Information)-RS (Reference Signal).

As an embodiment, the reference signal includes PRS (Positioning Reference Signal).

As an embodiment, a service cell is not in the first state means that a service cell is not in a network energy-saving state.

As an embodiment, a serving cell is not in the first state includes: a serving cell sends a SIB.

As an embodiment, a service cell is not in the first state includes: a service cell sends SSB.

As an embodiment, a serving cell is not in the first state includes: a serving cell sends a paging message.

As an embodiment, a serving cell is not in the first state includes: a serving cell sends a reference message.

As an embodiment, a serving cell is not in the first state includes: a serving cell performs data transmission based on dynamic scheduling.

As an embodiment, a service cell is not in the first state including: a service cell performs all data services (data traffic) and reference signal (reference signal) transmission.

As an embodiment, a service cell is not in the first state includes: a service cell performs all data service transmissions.

As an embodiment, a serving cell is a secondary cell.

As an embodiment, one serving cell is a primary cell.

As an embodiment, a serving cell is a special cell.

As an embodiment, a serving cell is a primary SCG cell.

As an embodiment, when at least one of the at least one serving cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is copied and delivered to the first RLC entity.

As an embodiment, when at least one of the at least one service cell associated with the first RLC entity is not in the first state when the first PDCP data PDU is generated, the first PDCP data PDU is generated immediately, the first PDCP data PDU is copied and the first PDCP data PDU is delivered to the first RLC entity.

As an embodiment, the first PDCP data PDU is copied in the first PDCP entity.

As an embodiment, the first RLC entity is a secondary RLC entity.

As an embodiment, the first RLC entity is a split secondary RLC entity.

As an embodiment, the first RLC entity is not a master RLC entity.

As an embodiment, the first RLC entity belongs to a secondary path.

As an embodiment, the first RLC entity does not belong to a primary path.

As an embodiment, the first PDCP entity is associated with a primary RLC entity and at least one secondary RLC entity, and the at least one secondary RLC entity includes the first RLC entity.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2. FIG2 illustrates a diagram of a network architecture 200 of a NR5G, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) system. The NR5G, LTE or LTE-A network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable term. 5GS/EPS200 may include one or more UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server)/UDM (Unified Data Management) 220 and Internet Service 230. 5GS/EPS can be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switching services, but technicians in the field will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit switching services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201. gNB203 can be connected to other gNB204 via an Xn interface (e.g., a backhaul link). The XnAP protocol of the Xn interface is used to transmit control plane messages of the wireless network, and the user plane protocol of the Xn interface is used to transmit user plane data. gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (Transmission Reception Point), or some other suitable term. In an NTN (Non Terrestrial Network), gNB203 may be a satellite, an aircraft, or a ground base station relayed by a satellite. gNB203 provides an access point to 5GC/EPC210 for UE201. Examples of UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a vehicle-mounted device, a vehicle-mounted communication unit, a wearable device, or any other similar functional device. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless 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 term. The gNB 203 is connected to the 5GC/EPC 210 via the S1/NG interface. The 5GC/EPC 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/SMF (Session Management Function) 211, other MME/AMF/SMF 214, S-GW (Service Gateway)/UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway)/UPF 213. The MME/AMF/SMF 211 is a control node that processes signaling between the UE 201 and the 5GC/EPC 210. In general, the MME/AMF/SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW/UPF212, which is itself connected to P-GW/UPF213. P-GW provides UE IP address allocation and other functions. P-GW/UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and PS (Packet Switching) streaming services.

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

As an embodiment, the gNB203 corresponds to the second node in this application.

As an embodiment, the UE201 is a user equipment.

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

As an embodiment, the gNB203 is a micro cell base station.

As an embodiment, the gNB203 is a pico cell base station.

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

As an embodiment, the gNB203 is a base station device that supports large delay difference.

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

As an embodiment, the gNB203 is a satellite device.

As an embodiment, the gNB203 is a testing device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).

As an embodiment, the wireless link from the UE201 to the gNB203 is an uplink, and the uplink is used to perform uplink transmission.

As an embodiment, the wireless link from the gNB203 to the UE201 is a downlink, and the downlink is used to perform downlink transmission.

As an embodiment, the UE201 and the gNB203 are connected via a Uu air interface.

Example 3

Embodiment 3 illustrates a schematic diagram of a radio protocol architecture for a user plane and a control plane according to an embodiment of the present application, as shown in FIG3. FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, and FIG3 shows the radio protocol architecture of the control plane 300 of a UE and a gNB in three layers: layer 1, layer 2, and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 herein. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. The PDCP sublayer 304 provides data encryption and integrity protection. The PDCP sublayer 304 also provides inter-zone mobility support for UEs between gNBs. The RLC sublayer 303 provides segmentation and reassembly of data packets, and retransmission of lost data packets through ARQ (Automatic Repeat Request). The RLC sublayer 303 also provides duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical channels and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between UEs. The MAC sublayer 302 is also responsible for HARQ (Hybrid Automatic Repeat Request) operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling between the gNB and the UE. The wireless protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The wireless protocol architecture in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. The wireless protocol architecture of the UE in the user plane 350 may include, at the L2 layer, a SDAP sublayer 356, a PDCP sublayer 354, a portion of or all of the protocol sublayers of the RLC sublayer 353 and the MAC sublayer 352. Although not shown, the UE may also have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

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

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

As an embodiment, entities of multiple sub-layers of the control plane in FIG. 3 form an SRB in the vertical direction.

As an embodiment, entities of multiple sub-layers of the user plane in FIG. 3 form a DRB in the vertical direction.

As an embodiment, entities of multiple sub-layers of the user plane in FIG. 3 form a multicast MRB in the vertical direction.

As an embodiment, the PDCP sublayer of the control plane in FIG. 3 provides SRB to the RRC sublayer.

As an embodiment, the PDCP sublayer of the user plane in FIG. 3 provides DRB to the SDAP sublayer.

As an embodiment, the PDCP sublayer of the user plane in FIG. 3 provides MRB to the SDAP sublayer.

As an embodiment, the logical channel is the SAP (Service Access Point) between the RLC303 and the MAC302.

As an embodiment, the logical channel is the SAP between the RLC353 and the MAC352.

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

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

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

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

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

As an embodiment, the PDCP data PDU in the present application is generated in the PDCP354.

As an embodiment, the first PDCP data PDU in the present application is generated in the PDCP304.

As an embodiment, the first PDCP data PDU in the present application is generated by the PDCP354.

As an embodiment, the L2 layer 305 or 355 belongs to a higher layer.

As an embodiment, the RRC sublayer 306 in the L3 layer belongs to a higher layer.

Example 4

Embodiment 4 illustrates a hardware module schematic diagram of a communication device according to an embodiment of the present application, as shown in FIG4. FIG4 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 data source 477, 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, at the second communication device 410, the upper layer data packets from the core network or the upper layer data packets from the data source 477 are provided to the controller/processor 475. The core network and the data source 477 represent all the protocol layers above the L2 layer. 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, the 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 the 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., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations 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 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with a reference signal (e.g., a pilot) in the time domain and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding/beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding/beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding/beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals 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. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover higher layer data packets from the second communication device 410. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, the upper layer data packets are provided to the controller/processor 459 using the data source 467. The data source 467 represents all the protocol layers above the L2 layer. Similar to the transmission function 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, and implements L2 layer functions for user plane and control plane. The controller/processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding/beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the reception functions 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 a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller/processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the first communication device 450. The upper layer data packets from the controller/processor 475 may be provided to the core network or all protocol layers above the L2 layer, and various control signals may also be provided to the core network or L3 for L3 processing.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: receives a first message, the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first wireless bearer; as a response to receiving the first message, determines whether to activate the PDCP replication of the first RLC entity according to whether at least one service cell associated with the first RLC entity is in a first state; wherein, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the first communication device 450 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first message, the first message indicating activation of the PDCP replication of a first RLC entity, the first RLC entity being associated with a first wireless bearer; as a response to receiving the first message, determining whether to activate the PDCP replication of the first RLC entity based on whether at least one service cell associated with the first RLC entity is in a first state; wherein, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: receives a first message, the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated with a first radio bearer, and the first RLC entity is associated with at least one service cell; as a response to receiving the first message, activates PDCP replication of the first RLC entity; generates a first PDCP data PDU; determines whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity according to whether the at least one service cell associated with the first RLC entity is in a first state; wherein, when at least one of the at least one service cell associated with the first RLC entity is not in the first state, copies the first PDCP data PDU and delivers the first PDCP data PDU to the first RLC entity; the first RLC entity is a secondary RLC entity; the feature that a service cell is in the first state includes that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the first communication device 450 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity being associated with a first radio bearer, and the first RLC entity being associated with at least one service cell; activating PDCP replication of the first RLC entity in response to receiving the first message; generating a first PDCP data PDU; determining whether to replicate the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity based on whether the at least one service cell associated with the first RLC entity is in a first state; wherein, when at least one of the at least one service cell associated with the first RLC entity is not in the first state, replicating the first PDCP data PDU and delivering the first PDCP data PDU to the first RLC entity; the first RLC entity is a secondary RLC entity; the feature that a service cell is in the first state includes that the one service cell shuts down data transmission based on dynamic scheduling.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the second communication device 410 apparatus at least: sends a first message, the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first wireless bearer; wherein whether at least one service cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first message, the first message indicating activation of the PDCP replication of a first RLC entity, the first RLC entity being associated with a first wireless bearer; wherein whether at least one service cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristic of a service cell being in the first state includes that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the second communication device 410 apparatus at least: sends a first message, the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated with a first radio bearer, and the first RLC entity is associated with at least one service cell; wherein the first message is used to activate PDCP replication of the first RLC entity; a first PDCP data PDU is generated; whether the at least one service cell associated with the first RLC entity is in a first state is used to determine whether the first PDCP data PDU is replicated and delivered to the first RLC entity; when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is replicated and delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the feature of a service cell being in the first state includes that the one service cell shuts down data transmission based on dynamic scheduling.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, the actions including: sending a first message, the first message indicating activation of PDCP replication of a first RLC entity, the first RLC entity being associated with a first radio bearer, the first RLC entity being associated with at least one service cell; wherein the first message is used to activate PDCP replication of the first RLC entity; a first PDCP data PDU is generated; whether the at least one service cell associated with the first RLC entity is in a first state is used to determine whether the first PDCP data PDU is replicated and delivered to the first RLC entity; when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is replicated and delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

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

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

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

As an embodiment, the first communication device 450 is a layer 2U2N remote UE.

As an embodiment, the first communication device 450 is a layer 3 relay node.

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

As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller/processor 475 is used to send the first message in the present application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller/processor 459 is used to receive the first message in the present application.

As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller/processor 475 is used to send the first signaling in the present application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456 or the controller/processor 459 is used to receive the first signaling in the present application.

As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller/processor 475 is used to send the second signaling in the present application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller/processor 459 is used to receive the second signaling in the present application.

As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller/processor 459 is used to replicate the PDCP data PDU in the present application.

As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller/processor 459 is used to activate PDCP duplication of the first RLC entity in the present application.

As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller/processor 459 is used to deactivate the PDCP duplication of the first RLC entity in the present application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456 or the controller/processor 459 is used to receive the first PDCP SDU in the present application.

Example 5A

Embodiment 5A illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5A. In FIG5A, the first node N51A and the second node N52A communicate via an air interface. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

For the first node N51A , the second signaling is received in step S511A; the first signaling is received in step S512A; it is determined in step S513A that the first serving cell is in the first state; the first message is received in step S514A; and the PDCP duplication of the first RLC entity is activated in step S515A.

For the second node N52A , the second signaling is sent in step S521A; the first signaling is sent in step S522A; and the first message is sent in step S523A.

In embodiment 5A, a first message is received, the first message indicating activation of PDCP replication of a first RLC entity, the first RLC entity being associated with a first radio bearer; as a response to receiving the first message, it is determined whether to activate the PDCP replication of the first RLC entity according to whether at least one service cell associated with the first RLC entity is in a first state; wherein, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the feature that a service cell is in the first state includes that the one service cell turns off data transmission based on dynamic scheduling; Receive a first signaling, which is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that a first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity; receive a second signaling, which is an RRC signaling; the second signaling indicates a period and an on-duration; wherein the duration for which the first service cell is not in the first state in each period includes the on-duration; when all secondary RLC entities in at least one secondary RLC entity are not activated for PDCP replication, the first radio bearer is not activated for PDCP replication; wherein the at least one secondary RLC entity is associated to the first radio bearer, and the at least one secondary RLC entity includes the first RLC entity; when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication.

Embodiment 5A is applicable to a scenario in which, when the first message is received, at least one service cell associated with the first RLC entity is not in the first state.

As an embodiment, the second node N52A is a maintaining base station of the serving cell of the first node N51A.

As an embodiment, the second node N52A is the Transmit/Receive Point (TRP) of the service cell of the first node N51A.

As an embodiment, the second node N52A is a maintenance base station of the master cell group (MCG) of the first node N51A.

As an embodiment, the second node N52A is a maintenance base station of the secondary cell group (SCG) of the first node N51A.

As an embodiment, the second node N52A is a MgNB (master gNB).

As an embodiment, the second node N52A is an SgNB (secondary gNB).

As an embodiment, the second node N52A is a maintenance base station of the first service cell.

As an embodiment, the air interface between the first node N51A and the second node N52A includes the first serving cell.

As an embodiment, a second signaling is received, where the second signaling is RRC signaling.

As an embodiment, the second signaling is received via the air interface.

As an embodiment, the second signaling includes at least a first configuration.

As an embodiment, the first configuration is used to configure at least one of cell DTX or cell DRX.

As an embodiment, the first configuration is at least one of a cell DTX configuration or a cell DRX configuration.

As an embodiment, the first configuration is a network energy saving configuration (Network Energy Saving, NES).

As an embodiment, the name of the first configuration includes NES.

As an embodiment, the name of the first configuration includes at least one of DTX or DRX.

As an embodiment, the second signaling is sent via unicast signaling.

As an embodiment, the second signaling is sent via broadcast signaling.

As an embodiment, the second signaling includes the first configuration and activates the first configuration.

As an embodiment, the second signaling indicates a periodicity and an on duration.

As an embodiment, the second signaling indicates the period and on-duration time of cell DTX.

As an embodiment, the second signaling indicates the cycle and on-duration time of the cell DRX.

As an embodiment, the second signaling indicates the cycle and on-duration of the cell DTX, and the cycle and on-duration of the cell DRX.

As an embodiment, the second signaling includes at least the first configuration; and the first signaling is used to activate the first configuration.

As an embodiment, the second signaling is received before receiving the first signaling.

As an embodiment, a first signaling is received, wherein the first signaling is a physical layer signaling or a MAC (Medium Access Control) sublayer signaling.

As an embodiment, the first signaling is received via the air interface.

As an embodiment, the first signaling is DCI (Downlink Control Information).

As an embodiment, the first signaling is PDCCH (Physical Downlink Control CHannel).

As an embodiment, the first signaling is SCI (Sidelink Control Information).

As an embodiment, the first signaling is carried in ACK (ACKnowledgement, confirmation) or NACK (Negative ACKnowledgment, negation) signaling.

As an embodiment, the first signaling is MAC CE (Control Element).

As an embodiment, the first signaling is carried in a MAC subheader.

As an embodiment, the first signaling is carried in a MAC SDU (Service Data Unit).

As an embodiment, the first signaling is carried in the padding of the MAC subPDU (sub-protocol data unit).

As an embodiment, the LCID (Logical Channel Identifier) of the first signaling is a positive integer between 35 and 46, including 35 and 46.

As an embodiment, the first receiver receives a first signaling, and the first signaling is DCI or MAC CE.

As an embodiment, the first signaling is used to determine that at least a first serving cell is in the first state, and the at least first serving cell is a subset of the at least one serving cell associated with the first RLC entity.

As an embodiment, the name of the first signaling includes activation.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: after receiving the first signaling, the first serving cell is in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: after receiving the first signaling, the first serving cell is periodically in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: after receiving the first signaling, the first serving cell is non-periodically in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: the first signaling is used to activate the first state of the first serving cell.

As an embodiment, the first signaling is used to determine that the first service cell is in the first state, including: the first signaling is used to activate the first service cell to be in a network energy-saving state, and the network energy-saving state includes the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: the first signaling is used to activate the cell DTX of the first serving cell, and the cell DTX includes the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: the first signaling is used to activate a cell DRX of the first serving cell, and the cell DRX includes the first state.

As an embodiment, the first signaling is used to determine that the first service cell is in the first state, including: the first signaling is used to activate the cell DTX/cell DRX of the first service cell, and the cell DTX/cell DRX includes the first state.

As an embodiment, the first signaling indicates the first serving cell.

As an embodiment, the first signaling explicitly indicates the first serving cell.

As an embodiment, the first signaling includes a cell identifier of the first serving cell.

As an embodiment, the cell identifier includes 36 bits.

As an embodiment, the cell identifier includes 5 bits.

As an embodiment, the cell identifier of the first service cell is a non-negative integer between 1 and 31, including 1 and 31.

As an embodiment, the cell identifier of the first service cell is a non-negative integer between 0 and 31, inclusive.

As an embodiment, the first signaling indicates the at least first serving cell.

As an embodiment, the first signaling explicitly indicates the at least first serving cell.

As an embodiment, the first signaling includes a cell identifier of each serving cell in the at least first serving cell.

As an embodiment, the cell identifier of each service cell in the at least first service cell is a non-negative integer between 1 and 31, including 1 and 31.

As an embodiment, the cell identifier of each service cell in the at least first service cell is a non-negative integer between 0 and 31, inclusive.

As an embodiment, the first signaling implicitly indicates the first serving cell.

As an embodiment, the first signaling implicitly indicates that the first serving cell is a cell that receives the first signaling.

As a sub-embodiment of the above two embodiments, the first signaling does not include a cell identifier of the first serving cell.

As an embodiment, the first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

As an embodiment, when all secondary RLC entities in at least one secondary RLC entity are not activated for PDCP replication, the first wireless bearer is not activated for PDCP replication; wherein, the at least one secondary RLC entity is associated with the first wireless bearer, and the at least one secondary RLC entity includes the first RLC entity.

As an embodiment, a secondary RLC entity is a split secondary RLC entity.

As an embodiment, a secondary RLC entity is not a primary RLC entity.

As an embodiment, a secondary RLC entity belongs to a secondary path.

As an embodiment, a secondary RLC entity does not belong to the primary path.

As an embodiment, the first PDCP entity is associated with a primary RLC entity and at least one secondary RLC entity.

As an embodiment, the master RLC entity is not deactivated.

As an embodiment, the primary RLC entity is not deactivated PDCP replication.

As an embodiment, PDCP replication is activated for the first radio bearer only when PDCP replication is activated for at least one secondary RLC entity.

As an embodiment, PDCP replication is activated for the first radio bearer only when PDCP replication is activated for any of the at least one secondary RLC entity.

As an embodiment, when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication.

As a sub-embodiment of the above embodiment, the first RLC entity is any secondary RLC entity among the at least one secondary RLC entity.

Example 5B

Embodiment 5B illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5B. In FIG5B, the first node N51B and the second node N52B communicate via an air interface. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

For the first node N51B , receive the second signaling in step S511B; receive the first signaling in step S512B; determine in step S513B that the first service cell is in the first state; receive the first message in step S514B; activate PDCP replication of the first RLC entity in step S515B; generate a first PDCP data PDU in step S516B; and copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity in step S517B.

For the second node N52B , the second signaling is sent in step S521B; the first signaling is sent in step S522B; and the first message is sent in step S523B.

Embodiment 5B is applicable to a scenario in which at least one of the at least one service cell associated with the first RLC entity is not in the first state.

In embodiment 5B, a first message is received, the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated with a first radio bearer, and the first RLC entity is associated with at least one serving cell; as a response to receiving the first message, activating PDCP replication of the first RLC entity; generating a first PDCP data PDU; determining whether to replicate the first PDCP data PDU and delivering the first PDCP data PDU to the first RLC entity according to whether the at least one serving cell associated with the first RLC entity is in a first state; wherein when at least one of the at least one serving cell associated with the first RLC entity is not in the first state, replicating the first PDCP data PDU DCP data PDU and deliver the first PDCP data PDU to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell shuts down data transmission based on dynamic scheduling; receiving a first signaling, the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity; receiving a second signaling, the second signaling is an RRC signaling; the second signaling indicates a period and an on-duration; wherein the duration that the first service cell is not in the first state in each period includes the on-duration.

As an embodiment, the second node N52B is a maintaining base station of the serving cell of the first node N51B.

As an embodiment, the second node N52B is the Transmit/Receive Point (TRP) of the service cell of the first node N51B.

As an embodiment, the second node N52B is a maintenance base station of the master cell group (MCG) of the first node N51B.

As an embodiment, the second node N52B is a maintenance base station of the secondary cell group (SCG) of the first node N51B.

As an embodiment, the second node N52B is a MgNB (master gNB).

As an embodiment, the second node N52B is an SgNB (secondary gNB).

As an embodiment, the second node N52B is a maintenance base station of the first service cell.

As an embodiment, the air interface between the first node N51B and the second node N52B includes the first serving cell.

As an embodiment, a second signaling is received, where the second signaling is RRC signaling.

As an embodiment, the second signaling is received via the air interface.

As an embodiment, the second signaling includes at least a first configuration.

As an embodiment, the first configuration is used to configure at least one of cell DTX or cell DRX.

As an embodiment, the first configuration is at least one of a cell DTX configuration or a cell DRX configuration.

As an embodiment, the first configuration is a network energy saving configuration (Network Energy Saving, NES).

As an embodiment, the name of the first configuration includes NES.

As an embodiment, the name of the first configuration includes at least one of DTX or DRX.

As an embodiment, the second signaling is sent via unicast signaling.

As an embodiment, the second signaling is sent via broadcast signaling.

As an embodiment, the second signaling includes the first configuration and activates the first configuration.

As an embodiment, the second signaling indicates a periodicity and an on duration.

As an embodiment, the second signaling indicates the period and on-duration time of cell DTX.

As an embodiment, the second signaling indicates the cycle and on-duration time of the cell DRX.

As an embodiment, the second signaling indicates the cycle and on-duration of the cell DTX, and the cycle and on-duration of the cell DRX.

As an embodiment, the second signaling includes at least the first configuration; and the first signaling is used to activate the first configuration.

As an embodiment, the second signaling is received before receiving the first signaling.

As an embodiment, a first signaling is received, wherein the first signaling is a physical layer signaling or a MAC (Medium Access Control) sublayer signaling.

As an embodiment, the first signaling is received via the air interface.

As an embodiment, the first signaling is DCI (Downlink Control Information).

As an embodiment, the first signaling is PDCCH (Physical Downlink Control CHannel).

As an embodiment, the first signaling is SCI (Sidelink Control Information).

As an embodiment, the first signaling is carried in ACK (ACKnowledgement, confirmation) or NACK (Negative ACKnowledgment, negation) signaling.

As an embodiment, the first signaling is MAC CE (Control Element).

As an embodiment, the first signaling is carried in a MAC subheader.

As an embodiment, the first signaling is carried in a MAC SDU (Service Data Unit).

As an embodiment, the first signaling is carried in the padding of the MAC subPDU (sub-protocol data unit).

As an embodiment, the LCID (Logical Channel Identifier) of the first signaling is a positive integer between 35 and 46, including 35 and 46.

As an embodiment, the first receiver receives a first signaling, and the first signaling is DCI or MAC CE.

As an embodiment, the first signaling is used to determine that at least a first serving cell is in the first state, and the at least first serving cell is a subset of the at least one serving cell associated with the first RLC entity.

As an embodiment, the name of the first signaling includes activation.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: after receiving the first signaling, the first serving cell is in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: after receiving the first signaling, the first serving cell is periodically in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: after receiving the first signaling, the first serving cell is non-periodically in the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: the first signaling is used to activate the first state of the first serving cell.

As an embodiment, the first signaling is used to determine that the first service cell is in the first state, including: the first signaling is used to activate the first service cell to be in a network energy-saving state, and the network energy-saving state includes the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: the first signaling is used to activate the cell DTX of the first serving cell, and the cell DTX includes the first state.

As an embodiment, the first signaling is used to determine that the first serving cell is in the first state, including: the first signaling is used to activate a cell DRX of the first serving cell, and the cell DRX includes the first state.

As an embodiment, the first signaling is used to determine that the first service cell is in the first state, including: the first signaling is used to activate the cell DTX/cell DRX of the first service cell, and the cell DTX/cell DRX includes the first state.

As an embodiment, the first signaling indicates the first serving cell.

As an embodiment, the first signaling explicitly indicates the first serving cell.

As an embodiment, the first signaling includes a cell identifier of the first serving cell.

As an embodiment, the cell identifier includes 36 bits.

As an embodiment, the cell identifier includes 5 bits.

As an embodiment, the cell identifier of the first service cell is a non-negative integer between 1 and 31, including 1 and 31.

As an embodiment, the cell identifier of the first service cell is a non-negative integer between 0 and 31, inclusive.

As an embodiment, the first signaling indicates the at least first serving cell.

As an embodiment, the first signaling explicitly indicates the at least first serving cell.

As an embodiment, the first signaling includes a cell identifier of each serving cell in the at least first serving cell.

As an embodiment, the cell identifier of each service cell in the at least first service cell is a non-negative integer between 1 and 31, including 1 and 31.

As an embodiment, the cell identifier of each service cell in the at least first service cell is a non-negative integer between 0 and 31, inclusive.

As an embodiment, the first signaling implicitly indicates the first serving cell.

As an embodiment, the first signaling implicitly indicates that the first serving cell is a cell that receives the first signaling.

As a sub-embodiment of the above two embodiments, the first signaling does not include a cell identifier of the first serving cell.

As an embodiment, the first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

As an embodiment, when all secondary RLC entities in at least one secondary RLC entity are not activated for PDCP replication, the first wireless bearer is not activated for PDCP replication; wherein, the at least one secondary RLC entity is associated with the first wireless bearer, and the at least one secondary RLC entity includes the first RLC entity.

As an embodiment, PDCP replication is activated for the first radio bearer only when PDCP replication is activated for at least one secondary RLC entity.

As an embodiment, when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication.

As a sub-embodiment of the above embodiment, the first RLC entity is any secondary RLC entity among the at least one secondary RLC entity.

As an embodiment, the first receiver receives an indication of successful transmission of the first PDCP data PDU from a second RLC entity; wherein the first PDCP data PDU is delivered to the second RLC entity, and the second RLC entity is one of multiple RLC entities associated with the first wireless bearer; the first transmitter, as a response to the successful transmission of the first PDCP data PDU, instructs the RLC entities associated with the first wireless bearer other than the second RLC entity that have received the copy of the first PDCP data PDU to discard the copy of the first PDCP data SDU.

As an embodiment, the second RLC entity and the first RLC entity are the same RLC entity.

As an embodiment, the second RLC entity and the first RLC entity are different RLC entities.

As an embodiment, the RLC entity that receives the copy of the first PDCP data PDU includes an RLC entity that receives the copy of the first PDCP data PDU before receiving an indication of successful transmission of the first PDCP data PDU from the second RLC entity.

Example 6A

Embodiment 6A illustrates a flowchart of a response process of a first node to receiving a first message according to an embodiment of the present application, as shown in FIG. 6A .

In Example 6A, a first message is received in step S601A; in step S602A, it is determined whether all service cells of at least one service cell associated with the first RLC entity are in the first state, if so, step S603A is executed, if not, step S604A is executed; in step S603A, PDCP replication of the first RLC entity is not activated; in step S604A, PDCP replication of the first RLC entity is activated.

Step S602A, S603A or S604A in Embodiment 6A is a response to receiving the first message.

As an embodiment, before receiving the first message, PDCP replication is not activated for the first RLC entity.

As an embodiment, not activating PDCP replication of the first RLC entity in step S603A means: maintaining that PDCP replication of the first RLC entity is not activated before receiving the first message.

As an embodiment, not activating the PDCP duplication of the first RLC entity in step S603A means that the first RLC entity is not used to send data units of the first radio bearer.

As an embodiment, a data unit is an SDU (service data unit).

As an embodiment, a data unit is a PDU (protocol data unit).

Example 6B

Embodiment 6B illustrates a processing flow chart of a first node when generating a first PDCP data PDU according to an embodiment of the present application, as shown in FIG. 6B .

In Example 6B, a first PDCP data PDU is generated in step S601B; in step S602B, it is determined whether all service cells of the at least one service cell associated with the first RLC entity are in the first state, if so, step S603B is executed, if not, step S604B is executed; in step S603B, the first PDCP data PDU is abandoned from being delivered to the first RLC entity; in step S604B, the first PDCP data PDU is copied and the first PDCP data PDU is delivered to the first RLC entity.

As an embodiment, when all service cells of the at least one service cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, the first PDCP data PDU is generated immediately and the first PDCP data PDU is abandoned from being delivered to the first RLC entity.

As an embodiment, giving up delivering the first PDCP data PDU to the first RLC entity means: not delivering the first PDCP data PDU to the first RLC entity.

As an embodiment, the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: delivering the first PDCP data PDU to at least one RLC entity outside the first RLC entity, and the at least one RLC entity is associated with the first wireless bearer.

As an embodiment, the at least one RLC entity other than the first RLC entity is a main RLC entity.

As an embodiment, the at least one RLC entity outside the first RLC entity includes a master RLC entity.

As an embodiment, at least one service cell associated with the main RLC entity is not in the first state.

As an embodiment, each service cell associated with the main RLC entity is in the first state.

As an embodiment, the at least one RLC entity outside the first RLC entity includes a secondary RLC entity, PDCP replication of the secondary RLC entity is activated, and at least one service cell associated with the secondary RLC entity is not in the first state.

As an embodiment, the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: discarding the first PDCP data PDU.

Example 7A

Embodiment 7A illustrates a processing flow chart of a first node after receiving a first message according to an embodiment of the present application, as shown in FIG. 7A .

In Example 7A, a first message is received in step S701A; in step S702A, it is determined whether all service cells of at least one service cell associated with the first RLC entity are initially in the first state, if so, step S703A is executed, if not, step S704A is executed; in step S703A, the PDCP replication of the first RLC entity is deactivated; in step S704A, it is determined whether any service cell of at least one service cell associated with the first RLC entity is initially not in the first state, if so, step S705A is executed, if not, jump back to step S702A; in step S705A, the PDCP replication of the first RLC entity is activated.

Steps S702A, S703A, S704A and S705A in Example 7A are processing in the first node after the first message is received and the second message is not received.

As an embodiment, after receiving the first message, the first transmitter determines whether to activate the PDCP replication of the first RLC entity, or deactivate the PDCP replication of the first RLC entity according to whether at least one service cell associated with the first RLC entity is in a first state.

As an embodiment, after receiving the first message, when any one of the at least one service cell associated with the first RLC entity begins to be not in the first state, the PDCP replication of the first RLC entity is activated.

As an embodiment, after receiving the first message, when all service cells of the at least one service cell associated with the first RLC entity are initially in the first state, the PDCP replication of the first RLC entity is deactivated.

As an embodiment, after receiving the first message, the PDCP copy of the first RLC entity is in an activated state, or the PDCP copy of the first RLC entity is in a deactivated state.

As an embodiment, after receiving the first message, when any of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is in an activated state.

As an embodiment, after receiving the first message, when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP copy of the first RLC entity is in a deactivated state.

As an embodiment, deactivating the PDCP replication of the first RLC entity in step S703A means: stopping the PDCP replication of the first RLC entity.

As an embodiment, Embodiment 7A is only applicable to the case where the second message is not received.

As an embodiment, the second message is used to deactivate PDCP duplication of the first RLC entity.

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

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

As an embodiment, the second message is MAC CE.

As an embodiment, the second message is Duplication Deactivation MAC CE.

As an embodiment, the second message is Duplication RLC Deactivation MAC CE.

As an embodiment, the format of the second message is the same as that of the first message.

As an embodiment, after receiving the second message, whether at least one serving cell associated with the first RLC entity is in a first state is not used to determine whether to activate PDCP duplication of the first RLC entity.

Example 7B

Embodiment 7B illustrates a schematic diagram of the relationship between a first message, a first PDCP data PDU and a first RLC entity according to an embodiment of the present application, as shown in FIG7B. In FIG7B, a slashed box indicates that at least one of the at least one serving cell associated with the first RLC entity is not in the first state.

In Example 7B, the first message is received at t0, and the PDCP replication of the first RLC entity is activated; the first PDCP data PDU is generated at t1, and at least one of the at least one service cell associated with the first RLC entity is not in the first state at t1, and the first PDCP data PDU is replicated and delivered to the first RLC entity.

FIG. 7B is also applicable to a secondary RLC entity other than the first RLC entity associated to the first radio bearer, the PDCP duplication of the secondary RLC entity being activated.

FIG. 7B also applies to the primary RLC entity associated to the first radio bearer.

Example 8A

Embodiment 8A illustrates a schematic diagram of the relationship between the first radio bearer, the first RLC entity and the first service cell according to an embodiment of the present application, as shown in FIG8A. In FIG8A, the data unit of the first radio bearer is transmitted through multiple RLC entities associated with the first PDCP entity; the multiple RLC entities include the first RLC entity and at least one other RLC entity; the first RLC entity is associated with n service cells, where n is a positive integer greater than 1.

As an embodiment, the at least one other RLC entity includes a master RLC entity.

As an embodiment, an RLC entity being associated with a serving cell includes: a serving cell (allowed serving cell) in which a logical channel corresponding to the RLC entity is allowed.

As an embodiment, an RLC entity being associated with a serving cell includes: a serving cell being allowed to send a data unit of an RLC entity.

As an embodiment, an RLC entity being associated with a serving cell includes: a serving cell being allowed to send a data unit of a logical channel corresponding to the RLC entity.

As an embodiment, at least one service cell associated with the first RLC entity is the same as a service cell associated with another RLC entity.

As an embodiment, at least one service cell associated with the first RLC entity is different from a service cell associated with another RLC entity.

As an embodiment, different service cells have different frequency domain resources.

As an embodiment, different service cells have different coverage areas.

As an embodiment, the first service cell is service cell 1.

As an embodiment, the first service cell is service cell 2.

As an embodiment, the first service cell is service cell 3.

Example 8B

Embodiment 8B illustrates a schematic diagram of the relationship between a first message, a first PDCP data PDU and a first RLC entity according to an embodiment of the present application, as shown in FIG8B. In FIG8B, a slashed box indicates that at least one of the at least one serving cell associated with the first RLC entity is not in the first state.

As an embodiment, the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: delivering the first PDCP data PDU to the first RLC entity after a first time interval is postponed from the generation of the first PDCP data PDU.

As an embodiment, the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: when the first PDCP data PDU is generated, when all service cells of the at least one service cell associated with the first RLC entity are in the first state, delivering the first PDCP data PDU to the first RLC entity after delaying the first time interval from the start of generating the first PDCP data PDU.

As an embodiment, the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: when the first PDCP data PDU is generated, all service cells of the at least one service cell associated with the first RLC entity are in the first state, and when the first time interval is extended from the start of generating the first PDCP data PDU, at least one of the at least one service cell associated with the first RLC entity starts to be no longer in the first state, and the first PDCP data PDU is delivered to the first RLC entity.

As an embodiment, after the first time interval is extended from the generation of the first PDCP data PDU, at least one of the at least one service cell associated with the first RLC entity starts to be no longer in the first state.

As an embodiment, the first time interval includes multiple time units.

As an embodiment, the first time interval includes at least 4 time units.

As an embodiment, the number of time units included in the first time interval is predefined.

As an embodiment, the number of time units included in the first time interval is variable.

As an embodiment, the first time interval includes a duration from when the first PDCP data PDU is generated to when at least one of the at least one serving cell associated with the first RLC entity is not in the first state.

As an embodiment, one time unit is one time slot.

As an embodiment, one time unit is one subframe.

As an embodiment, one time unit is one millisecond.

As an embodiment, the first time interval value is smaller than the expiration value of the first timer.

As an embodiment, when the first PDCP data PDU is delivered to the first RLC entity after delaying the first time interval from the generation of the first PDCP data PDU, the first timer has not expired.

As an embodiment, the first timer not being expired means that the first timer is in a running state.

As an embodiment, the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, the first transmitter receives a first PDCP SDU from an upper layer protocol entity; and starts the first timer in response to receiving the first PDCP SDU.

As an embodiment, after the first timer is started, it is in a running state until it expires.

As an embodiment, the first timer is maintained in the first PDCP entity.

As an embodiment, the expiration value of the first timer is configured by the network.

As an embodiment, when the first timer is in a running state, the first timer is updated in a subsequent second time interval, and then it is determined whether the first timer has expired.

As an embodiment, the value of the first timer is set to 0 when the first timer is started, and the phrase updating the first timer includes: adding 1 to the value of the first timer; and when the value of the first timer is the expiration value of the first timer, determining that the first timer is expired.

As an embodiment, when the first timer is started, the value of the first timer is set to the expiration value of the first timer, and the phrase updating the first timer includes: subtracting 1 from the value of the first timer; and when the value of the first timer is 0, determining that the first timer has expired.

As an embodiment, the second time interval includes 1 millisecond.

As an embodiment, the second time interval includes a time length of 1 time slot.

As an embodiment, the second time interval includes a time length of 1 subframe.

In Example 8B, the first message is received at t0, and the PDCP replication of the first RLC entity is activated; the first PDCP data PDU is generated at t1, and at t1, all of the at least one service cell associated with the first RLC entity are in the first state, and the first PDCP data PDU is not delivered to the first RLC entity; the first time interval is extended from t1 to t2, when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is replicated and delivered to the first RLC entity; at t2, the first timer is in a running state.

As an embodiment, when the first timer expires, an RLC entity associated with the first radio bearer that has received the copy of the first PDCP data PDU is instructed to discard the copy of the first PDCP data SDU.

Example 9A

Embodiment 9A illustrates a schematic diagram of the time relationship between a serving cell associated with a first RLC entity in a first state and not in the first state according to an embodiment of the present application, as shown in FIG9A. In FIG9A, ON indicates that the serving cell is not in the first state, and OFF indicates that the serving cell is in the first state.

As an embodiment, the first state is an inactive state.

As an embodiment, not being in the first state is an active state.

As an embodiment, the time in the first state is an inactive period.

As an embodiment, the time when the device is not in the first state is an active period.

As an embodiment, the at least one service cell associated with the first RLC entity supports being configured as a network energy-saving cell.

As an embodiment, a network energy-saving cell supports at least one of cell DTX (Discontinuous Transmission) and cell DRX (Discontinuous Reception).

As an embodiment, cell DTX means that the cell transmits discontinuously.

As an embodiment, cell DRX means cell discontinuous reception.

As an embodiment, the cell DTX/cell DRX includes a cell active period and a cell inactive period.

As an embodiment, the cell DTX/cell DRX includes a cell transmission/reception active period and a cell transmission/reception inactive period.

As an embodiment, during the active period of cell DTX/cell DRX, the sending/receiving of all data services and reference signals are enabled.

As an embodiment, during the inactive period of cell DTX/cell DRX, the transmission/reception of all data services and reference signals are turned off.

As an embodiment, during the inactive period of cell DTX/cell DRX, only the data service transmission/reception is turned off.

As an embodiment, during the inactive period of cell DTX/cell DRX, dynamic data transmission/reception is turned off.

As an embodiment, during the inactive period of cell DTX/cell DRX, only the reference signal is sent.

As an embodiment, the cell DTX/cell DRX includes a periodic active period.

As an embodiment, the cell DTX/cell DRX includes a non-periodic active period.

As an embodiment, cell DTX/cell DRX is cell-granular.

As an embodiment, cell DTX/cell DRX is configured and activated by RRC signaling.

As an embodiment, the patterns of the cell DTX and the cell DRX are the same, that is, the inactive period of the cell DTX is the same as the inactive period of the cell DRX, and the active period of the cell DTX is the same as the active period of the cell DRX.

As an embodiment, the modes of cell DTX and cell DRX are different, that is, the inactive period of cell DTX is different from the inactive period of cell DRX, and the active period of cell DTX is different from the active period of cell DRX.

As an embodiment, the first state includes an inactive state of cell DTX.

As an embodiment, the first state includes an inactive state of cell DRX.

As an embodiment, the first state includes an inactive state of the cell DTX and an inactive state of the cell DRX.

As an embodiment, FIG. 9A is applicable to a cell DTX mode.

As an embodiment, FIG. 9A is applicable to a cell DRX mode.

In case A of embodiment 9A, cell DTX/cell DRX includes periodic active periods and inactive periods.

In case B of embodiment 9A, cell DTX/cell DRX includes periodic and non-periodic active periods and inactive periods; wherein the non-periodic active period is represented by a slash frame.

In situation A of embodiment 9, a service cell is periodically in the first state.

In situation B of embodiment 9, a service cell is in the first state periodically and aperiodically; wherein a slashed box indicates that a service cell is in the first state aperiodically.

As an embodiment, the non-periodic active period included in the cell DTX/cell DRX is triggered by an event, and the event includes at least one of a random access process, a beam failure recovery process, a switching process, an anchor cell wake-up process, and a core network wake-up process.

As an embodiment, a network energy-saving cell is not used to send system information.

As an embodiment, a network energy-saving cell is not used to send paging messages.

As an embodiment, a network energy-saving cell is not used to send SIB messages.

As an embodiment, a network energy-saving cell is only accessed by UEs that support the network energy-saving cell.

As an embodiment, whether a network energy-saving cell is accessed by a UE that does not support the network energy-saving cell is configured by the network.

As an embodiment, before receiving the first signaling, the first serving cell does not operate in a network energy-saving cell mode.

As an embodiment, before receiving the first signaling, the first state of the first service cell is not activated.

As an embodiment, the reception of the first signaling is used to activate the network energy-saving cell configuration of the first serving cell.

As an embodiment, the reception of the first signaling is used to activate the cell DTX/cell DRX configuration of the first serving cell.

As an embodiment, when receiving the first message, at least one service cell associated with the first RLC entity is in an active period of cell DTX.

As an embodiment, when receiving the first message, the first serving cell is in an active period of cell DTX.

As an embodiment, when receiving the first message, the first serving cell is in an inactive period of cell DTX.

As an embodiment, the duration that the first serving cell is not in the first state in each cycle includes the on-duration time.

As an embodiment, the on-duration time is located at any position in a cycle.

As an embodiment, the on-duration time is located at the beginning of a cycle.

As an embodiment, the on-duration time is located at the end of a cycle.

As an embodiment, the second signaling indicates a starting time slot/offset.

As an embodiment, the starting time slot of the active period of the cell DTX/cell DRX is obtained according to the indicated period, the starting time slot/offset and the current time slot.

As an embodiment, the starting time slot of the inactive period of cell DTX/cell DRX is obtained according to the indicated period, starting time slot/offset and current time slot.

Example 9B

Embodiment 9B illustrates a schematic diagram of the relationship between a first message, a first PDCP data PDU and a first RLC entity according to an embodiment of the present application, as shown in FIG9B. In FIG9B, a slashed box indicates that at least one of the at least one serving cell associated with the first RLC entity is not in the first state.

As an embodiment, the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: from the generation of the first PDCP data PDU to the expiration of a first timer, the first PDCP data PDU is not delivered to the first RLC entity; wherein, the first timer is associated with the first PDCP SDU.

As an embodiment, the meaning of associating the first timer with the first PDCP SDU is the same as that in Embodiment 8 and will not be repeated here.

As an embodiment, from the generation of the first PDCP data PDU to the expiration of the first timer, all service cells of the at least one service cell associated with the first RLC entity are always in the first state.

In Example 9B, the first message is received at t0 and the PDCP replication of the first RLC entity is activated; the first PDCP data PDU is generated at t1, and at t1, all service cells of the at least one service cell associated with the first RLC entity are in the first state, and the first PDCP data PDU is not delivered to the first RLC entity; at t2, the first timer expires; within the time interval from t1 to t2, all service cells of the at least one service cell associated with the first RLC entity are in the first state, and the first PDCP data PDU is not delivered to the first RLC entity.

Example 10

Embodiment 10 illustrates a schematic diagram of the relationship between the state of at least one serving cell associated with the first RLC entity and the PDCP replication of the first RLC entity according to an embodiment of the present application, as shown in FIG10. In FIG10, ON indicates that the serving cell is not in the first state, and OFF indicates that the serving cell is in the first state; the slashed box indicates that the PDCP replication of the first RLC entity is in an activated state; the solid arrow indicates activation of the PDCP replication of the first RLC entity, and the dotted arrow indicates deactivation of the PDCP replication of the first RLC entity.

As an embodiment, the PDCP replication of the first RLC entity is in an activated state during multiple durations; wherein the multiple durations include a duration during which at least one service cell associated with the first RLC entity is not in the first state; and each of the multiple durations includes at least one time unit.

As an embodiment, whether at least one serving cell associated with the first RLC entity is in the first state is used to determine the time unit included in any one of the multiple durations.

As an embodiment, one time unit is one time slot.

As an embodiment, one time unit is one subframe.

As an embodiment, one time unit is one millisecond (ms).

As an embodiment, one time unit is one frame.

As an embodiment, the starting moment of a duration is the moment when any one of the at least one service cell associated with the first RLC entity begins to be no longer in the first state.

As an embodiment, a duration includes the time from when any one of the at least one service cell associated with the first RLC entity starts to be not in the first state to when all of the at least one service cell associated with the first RLC entity starts to be in the first state.

As an embodiment, any duration included in the multiple durations includes the time from any one of the at least one service cell associated with the first RLC entity starting to be not in the first state to all of the at least one service cell associated with the first RLC entity starting to be in the first state or receiving a second message, whichever comes first; wherein the second message is used to deactivate the PDCP copy of the first RLC entity.

As an embodiment, the PDCP replication of the first RLC entity is in an inactivated state between two adjacent durations among the multiple durations.

In Example 10, a description is given by taking the first RLC entity associating two service cells, service cell 1 and service cell 2, as an example; when the first message is received at t0, both service cell 1 and service cell 2 are not in the first state, and the PDCP replication of the first RLC entity is activated; between t0 and t1, the PDCP replication of the first RLC entity is in an activated state; at t1, both service cell 1 and service cell 2 are initially in the first state, and the PDCP replication of the first RLC entity is deactivated; between t1 and t2, the PDCP replication of the first RLC entity is in a deactivated state; at t2, service cell 1 and service cell 2 are in the first state. At the beginning, the service cell 1 and the service cell 2 are not in the first state, and the PDCP replication of the first RLC entity is activated; between t2 and t3, the PDCP replication of the first RLC entity is in the activated state; at t3, both the service cell 1 and the service cell 2 are in the first state at the beginning, and the PDCP replication of the first RLC entity is deactivated; between t3 and t4, the PDCP replication of the first RLC entity is in the deactivated state; at t4, the service cell 2 is not in the first state at the beginning, and the PDCP replication of the first RLC entity is activated; between t4 and t5, the PDCP replication of the first RLC entity is in the activated state, and so on and so forth.

As an embodiment, after the PDCP copy of the first RLC is activated and before it is deactivated, the PDCP copy of the first RLC is in an activated state.

As an embodiment, after the PDCP copy of the first RLC is deactivated and before it is activated, the PDCP copy of the first RLC is in a deactivated state.

Embodiment 11

Embodiment 11 illustrates a signal processing flow chart in a first node according to an embodiment of the present application, as shown in FIG11. In FIG11, a first PDCP entity is associated with a first RLC entity and another RLC entity.

As an embodiment, when PDCP replication is activated for the first radio bearer, the PDCP data PDU is replicated and delivered to at least one RLC entity for sending; wherein, the at least one RLC entity is associated with the first radio bearer, PDCP replication is activated for the at least one RLC entity, and the at least one RLC entity includes the first RLC entity.

As an embodiment, when the PDCP duplication of the first RLC entity is not activated, the PDCP data PDU is not delivered to the first RLC entity for transmission.

As an embodiment, when the PDCP duplication of the first RLC entity is deactivated, the PDCP data PDU is not delivered to the first RLC entity for transmission.

As an embodiment, when the PDCP duplication of the first RLC entity is not activated, the first PDCP data PDU is not delivered to the first RLC entity for sending.

As an embodiment, when the PDCP duplication of the first RLC entity is deactivated, the first PDCP data PDU is not delivered to the first RLC entity for sending.

As an embodiment, when the PDCP duplication of the first RLC entity is activated, the PDCP data PDU is copied and the PDCP data PDU is delivered to the first RLC entity for transmission.

As an embodiment, when the PDCP duplication of the first RLC entity is activated, only the PDCP data PDU is copied and the PDCP data PDU is delivered to the first RLC entity for transmission.

As an embodiment, when the PDCP duplication of the first RLC entity is activated, the PDCP control PDU is not delivered to the first RLC entity for sending.

As an embodiment, a PDCP control PDU includes a control message of the PDCP sublayer.

As an embodiment, a PDCP control PDU is a PDCP status report.

As an embodiment, a PDCP control PDU is EHC (Ethernet Header Compression) feedback.

As an embodiment, a PDCP control PDU is interspersed with ROHC (RObust Header Compression) feedback.

In situation A of embodiment 11, the PDCP duplication of the first RLC entity is in a deactivated state, and the PDCP data PDU is not delivered to other RLC entities for transmission.

In situation B of embodiment 11, the PDCP duplication of the first RLC entity is in an activated state, duplicating the PDCP data PDU and delivering the PDCP data PDU to the first RLC entity and other RLC entities simultaneously for transmission.

In case A of embodiment 11, the first PDCP data PDU is delivered to other RLC entities instead of being delivered to the first RLC entity.

In case B of embodiment 11, the first PDCP data PDU is copied and delivered to the first RLC entity and other RLC entities at the same time.

Example 12A

Embodiment 12A illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG. 12A .

In FIG12A, a first node processing device 1200 includes a first receiver 1201 and a first transmitter 1202. The first node 1200 is a UE.

In embodiment 12A, a first receiver 1201 receives a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first wireless bearer; a first transmitter 1202, as a response to receiving the first message, determines whether to activate the PDCP replication of the first RLC entity according to whether at least one service cell associated with the first RLC entity is in a first state; wherein, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; and the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the first transmitter 1202, after receiving the first message, activates the PDCP replication of the first RLC entity when any service cell of the at least one service cell associated with the first RLC entity is initially not in the first state; and deactivates the PDCP replication of the first RLC entity when all service cells of the at least one service cell associated with the first RLC entity are initially in the first state; wherein a second message is not received, and the second message is used to deactivate the PDCP replication of the first RLC entity.

As an embodiment, the first receiver 1201 receives a first signaling, which is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the first receiver 1201 receives a first signaling, which is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity; the first receiver 1201 receives a second signaling, which is an RRC signaling; the second signaling indicates a period and an on-duration; wherein the duration that the first service cell is not in the first state in each period includes the on-duration.

As an embodiment, when all secondary RLC entities in at least one secondary RLC entity are not activated for PDCP replication, the first wireless bearer is not activated for PDCP replication; wherein, the at least one secondary RLC entity is associated with the first wireless bearer, and the at least one secondary RLC entity includes the first RLC entity.

As an embodiment, when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication.

As an embodiment, when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication; the first transmitter 1202 replicates the PDCP data PDU and delivers the PDCP data PDU to at least one RLC entity for transmission; wherein the at least one RLC entity is associated with the first radio bearer, the at least one RLC entity is activated for PDCP replication, and the at least one RLC entity includes the first RLC entity.

As an embodiment, the first receiver 1201 includes the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 and the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first receiver 1201 includes at least one of the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 or the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first transmitter 1202 includes the transmitter 454 (including the antenna 452), the transmission processor 468, the multi-antenna transmission processor 457 and the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first transmitter 1202 includes at least one of the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 or the controller/processor 459 in FIG. 4 of the present application.

Example 12B

Embodiment 12B illustrates a state diagram of at least one service cell associated with the first RLC entity according to an embodiment of the present application, as shown in FIG12B. In FIG12B, ON indicates that the service cell is not in the first state, and OFF indicates that the service cell is in the first state; in FIG12B, the first RLC entity is associated with two service cells, namely, service cell 1 and service cell 2; the slashed box indicates that at least one of the service cells 1 and service cell 2 associated with the first RLC entity is not in the first state; when the first PDCP data PDU is generated in the time interval represented by the slashed box, the first PDCP data PDU is copied and delivered to the first RLC entity; when the first PDCP data PDU is generated in the time interval outside the slashed box, the first PDCP data PDU is generated immediately thereafter, and the first PDCP data PDU is abandoned from being delivered to the first RLC entity.

Embodiment 13

[Corrected 26.02.2024 in accordance with Article 91]
Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG13. In FIG13, a second node processing device 1300 includes a second transmitter 1301; the second node 1300 is a base station.

In embodiment 13, the second transmitter 1301 sends a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first wireless bearer; wherein whether at least one service cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, after the first message is received, when any service cell of the at least one service cell associated with the first RLC entity begins to be not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity begin to be in the first state, the PDCP replication of the first RLC entity is deactivated; wherein, the second message is not received, and the second message is used to deactivate the PDCP replication of the first RLC entity.

As an embodiment, the second transmitter 1301 sends a first signaling, and the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the second transmitter 1301 sends a first signaling, and the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity; the second transmitter 1301 sends a second signaling, and the second signaling is an RRC signaling; the second signaling indicates a period and an on-duration; wherein the duration that the first service cell is not in the first state in each period includes the on-duration.

As an embodiment, when all secondary RLC entities in at least one secondary RLC entity are not activated for PDCP replication, the first wireless bearer is not activated for PDCP replication; wherein, the at least one secondary RLC entity is associated with the first wireless bearer, and the at least one secondary RLC entity includes the first RLC entity.

As an embodiment, when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication.

As an embodiment, when the first RLC entity is activated for PDCP replication, the first radio bearer is activated for PDCP replication; the PDCP data PDU is replicated and delivered to at least one RLC entity for sending; wherein, the at least one RLC entity is associated with the first radio bearer, the at least one RLC entity is activated for PDCP replication, and the at least one RLC entity includes the first RLC entity.

As an embodiment, the second transmitter 1301 includes the transmitter 418 (including the antenna 420), the transmission processor 416, the multi-antenna transmission processor 471 and the controller/processor 475 in FIG. 4 of the present application.

As an embodiment, the second transmitter 1301 includes at least one of the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 or the controller/processor 475 in FIG. 4 of the present application.

Embodiment 14

Embodiment 14 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG14 .

In FIG14 , a first node processing device 1400 includes a first receiver 1401 and a first transmitter 1402. The first node 1400 is a UE.

In Example 14, a first receiver 1401 receives a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated with a first radio bearer, and the first RLC entity is associated with at least one service cell; a first transmitter 1402, as a response to receiving the first message, activates PDCP replication of the first RLC entity; generates a first PDCP data PDU; determines whether to copy the first PDCP data PDU and deliver the first PDCP data PDU to the first RLC entity based on whether the at least one service cell associated with the first RLC entity is in a first state; wherein, when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is copied and the first PDCP data PDU is delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, the first transmitter 1402, when all service cells of the at least one service cell associated with the first RLC entity are in the first state when generating the first PDCP data PDU, immediately generates the first data PDU and abandons delivering the first PDCP data PDU to the first RLC entity.

As an embodiment, the first transmitter 1402, when all the service cells of the at least one service cell associated with the first RLC entity are in the first state when generating the first PDCP data PDU, immediately generates the first data PDU and abandons delivering the first PDCP data PDU to the first RLC entity; the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: delivering the first PDCP data PDU to at least one RLC entity other than the first RLC entity, and the at least one RLC entity is associated with the first wireless bearer.

As an embodiment, the first transmitter 1402, when all service cells of the at least one service cell associated with the first RLC entity are in the first state when generating the first PDCP data PDU, immediately generates the first data PDU and abandons delivering the first PDCP data PDU to the first RLC entity; the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: delivering the first PDCP data PDU to the first RLC entity after a first time interval is postponed from the generation of the first PDCP data PDU; wherein the first time interval value is less than the expiration value of a first timer, and the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, the first transmitter 1402, when all service cells of the at least one service cell associated with the first RLC entity are in the first state when generating the first PDCP data PDU, immediately generates the first data PDU and abandons delivering the first PDCP data PDU to the first RLC entity; the abandonment of delivering the first PDCP data PDU to the first RLC entity includes: from the generation of the first PDCP data PDU to the expiration of the first timer, the first PDCP data PDU is not delivered to the first RLC entity; wherein the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, the first receiver 1401 receives a first signaling, which is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the first receiver 1401 receives a second signaling, which is an RRC signaling; the second signaling indicates a period and an on-duration; wherein the duration that the first service cell is not in the first state in each period includes the on-duration.

As an embodiment, the first receiver 1401 includes the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 and the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first receiver 1401 includes at least one of the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 or the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first transmitter 1402 includes the transmitter 454 (including the antenna 452), the transmission processor 468, the multi-antenna transmission processor 457 and the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first transmitter 1402 includes at least one of the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 or the controller/processor 459 in FIG. 4 of the present application.

As an embodiment, the first transmitter 1402 includes the controller/processor 459 in FIG. 4 of the present application.

Embodiment 15

Embodiment 15 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG15. In FIG15, a second node processing device 1500 includes a second transmitter 1501; the second node 1500 is a base station.

In embodiment 15, the second transmitter 1501 sends a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, the first RLC entity is associated to a first radio bearer, and the first RLC entity is associated to at least one service cell; wherein the first message is used to activate PDCP replication of the first RLC entity; a first PDCP data PDU is generated; whether the at least one service cell associated with the first RLC entity is in a first state is used to determine whether the first PDCP data PDU is replicated and delivered to the first RLC entity; when at least one of the at least one service cell associated with the first RLC entity is not in the first state, the first PDCP data PDU is replicated and delivered to the first RLC entity; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.

As an embodiment, when all of the at least one service cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, immediately after the first data PDU is generated, the first PDCP data PDU is not delivered to the first RLC entity.

As an embodiment, when all the service cells of the at least one service cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, the first PDCP data PDU is not delivered to the first RLC entity immediately after the first data PDU is generated; the first PDCP data PDU is not delivered to the first RLC entity includes: the first PDCP data PDU is delivered to at least one RLC entity other than the first RLC entity, and the at least one RLC entity is associated with the first radio bearer.

As an embodiment, when all service cells of the at least one service cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, the first PDCP data PDU is not delivered to the first RLC entity immediately after the first data PDU is generated; the first PDCP data PDU is not delivered to the first RLC entity including: the first PDCP data PDU is delivered to the first RLC entity after a first time interval is delayed from the start of the generation of the first PDCP data PDU; wherein the first time interval value is less than the expiration value of a first timer, and the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, when all service cells of the at least one service cell associated with the first RLC entity are in the first state when the first PDCP data PDU is generated, the first PDCP data PDU is not delivered to the first RLC entity immediately after the first data PDU is generated; the first PDCP data PDU is not delivered to the first RLC entity including: from the generation of the first PDCP data PDU to the expiration of the first timer, the first PDCP data PDU is not delivered to the first RLC entity; wherein the first timer is associated with the first PDCP SDU that generates the first PDCP data PDU.

As an embodiment, the second transmitter 1501 sends a first signaling, and the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first service cell is in the first state; wherein the first service cell is one of the at least one service cell associated with the first RLC entity.

As an embodiment, the second transmitter 1501 sends a second signaling, which is an RRC signaling; the second signaling indicates a period and an on-duration; wherein the duration that the first service cell is not in the first state in each period includes the on-duration.

As an embodiment, the second transmitter 1501 includes the transmitter 418 (including the antenna 420), the transmission processor 416, the multi-antenna transmission processor 471 and the controller/processor 475 in FIG. 4 of the present application.

As an embodiment, the second transmitter 1501 includes at least one of the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 or the controller/processor 475 in FIG. 4 of the present application.

A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. The present application is not limited to any specific form of combination of software and hardware. The first type of communication node or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC (enhanced Machine Type Communication) equipment, NB-IoT equipment, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication equipment. The second category of communication nodes or base stations or network-side devices in the present application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmission receiving nodes TRP (Transmission and Reception Point), relay satellites, satellite base stations, aerial base stations, test equipment, such as transceivers that simulate some functions of base stations, signaling testers and other wireless communication equipment.

It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims (10)

A first node used for wireless communication, comprising: A first receiver receives a first message, wherein the first message indicates activation of PDCP duplication of a first RLC entity, the first RLC entity being associated with a first radio bearer; a first transmitter, in response to receiving the first message, determining whether to activate PDCP duplication of the first RLC entity according to whether at least one serving cell associated with the first RLC entity is in a first state; Among them, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP copy of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP copy of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling. The first node according to claim 1, characterized in that it comprises: The first transmitter, after receiving the first message, activates the PDCP replication of the first RLC entity when any of the at least one serving cell associated with the first RLC entity starts not being in the first state; and deactivates the PDCP replication of the first RLC entity when all of the at least one serving cell associated with the first RLC entity starts being in the first state; The second message is not received, and the second message is used to deactivate the PDCP copy of the first RLC entity. The first node according to claim 1 or 2, characterized in that it comprises: The first receiver receives a first signaling, where the first signaling is a physical layer signaling or a MAC sublayer signaling; the first signaling is used to determine that the first serving cell is in the first state; The first service cell is one of the at least one service cell associated with the first RLC entity. The first node according to claim 3, characterized in that it comprises: The first receiver receives a second signaling, where the second signaling is an RRC signaling; the second signaling indicates a cycle and an on-duration time; The duration that the first serving cell is not in the first state in each cycle includes the on-duration time. The first node according to any one of claims 1 to 4, characterized in that when all secondary RLC entities in at least one secondary RLC entity are not activated for PDCP replication, the first radio bearer is not activated for PDCP replication; The at least one secondary RLC entity is associated with the first radio bearer, and the at least one secondary RLC entity includes the first RLC entity. The first node according to any one of claims 1 to 4, characterized in that when PDCP replication is activated for the first RLC entity, PDCP replication is activated for the first radio bearer. The first node according to claim 6, characterized in that it comprises: The first transmitter copies the PDCP data PDU and delivers the PDCP data PDU to at least one RLC entity for transmission; The at least one RLC entity is associated with the first radio bearer, PDCP replication is activated for the at least one RLC entity, and the at least one RLC entity includes the first RLC entity. A second node used for wireless communication, characterized by comprising: A second transmitter sends a first message, wherein the first message indicates activation of PDCP replication of a first RLC entity, and the first RLC entity is associated with a first radio bearer; Among them, whether at least one serving cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any of the at least one serving cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all of the at least one serving cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; when the first RLC entity is a secondary RLC entity body; the characteristics of a serving cell being in the first state include that the serving cell shuts down data transmission based on dynamic scheduling. A method in a first node for wireless communication, comprising: receiving a first message indicating activation of PDCP duplication of a first RLC entity, the first RLC entity being associated with a first radio bearer; In response to receiving the first message, determining whether to activate PDCP duplication of the first RLC entity according to whether at least one serving cell associated with the first RLC entity is in a first state; Among them, when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP copy of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP copy of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling. A method used in a second node of wireless communication, characterized by comprising: Sending a first message, the first message indicating activation of PDCP replication of a first RLC entity, the first RLC entity being associated with a first radio bearer; Among them, whether at least one service cell associated with the first RLC entity is in a first state is used to determine whether to activate the PDCP replication of the first RLC entity; when any service cell of the at least one service cell associated with the first RLC entity is not in the first state, the PDCP replication of the first RLC entity is activated; when all service cells of the at least one service cell associated with the first RLC entity are in the first state, the PDCP replication of the first RLC entity is not activated; the first RLC entity is a secondary RLC entity; the characteristics of a service cell being in the first state include that the one service cell turns off data transmission based on dynamic scheduling.