WO2024055242A1

WO2024055242A1 - Communication method and apparatus, communication device, and converged networking architecture

Info

Publication number: WO2024055242A1
Application number: PCT/CN2022/119037
Authority: WO
Inventors: 王淑坤; 石聪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2024-03-21

Abstract

Embodiments of the present application provide a communication method and apparatus, a communication device, and a converged networking architecture. The converged networking architecture comprises a first cell and at least one second cell. The method comprises: the first cell sends first data to the second cell, wherein the first data is sent by the second cell to a terminal device, the first data is processed on a first cell side by means of a first protocol stack, and the first data is processed on a second cell side by means of a second protocol stack; and/or the first cell receives second data sent by the second cell, wherein the second data is sent by the terminal device to the second cell, the second data is processed on the second cell side by means of the second protocol stack, and the second data is processed on the first cell side by means of the first protocol stack.

Description

A communication method and device, communication equipment, and integrated networking architecture

Technical field

The embodiments of the present application relate to the field of mobile communication technology, and specifically relate to a communication method and device, communication equipment, and a converged networking architecture.

Background technique

With the development of mobile communication technology, the volume of communication business will become larger and larger in the future, and the requirements for cell capacity will become higher and higher. At the same time, with the development of mobile communication technology, the quality of communication connections, business continuity and other requirements will also increase. It will get higher and higher.

The signals of low-frequency cells have the characteristics of long transmission distance and strong penetration, which can ensure the quality of communication connections and business continuity. However, the spectrum resources of low-frequency cells are limited and the cell capacity is low. The signals of high-frequency cells have characteristics such as short transmission distance and weak penetration, which cannot guarantee the quality of communication connections and business continuity. However, high-frequency cells have rich spectrum resources and large cell capacity. How to combine the advantages of high-frequency cells and low-frequency cells to improve network performance needs to be optimized.

Contents of the invention

Embodiments of the present application provide a communication method and device, communication equipment, a converged networking architecture, a chip, a computer-readable storage medium, a computer program product, and a computer program.

The communication method provided by the embodiment of the present application is applied to the first cell in the converged networking architecture. The converged networking architecture also includes a second cell; the first cell has a first protocol stack, and the second cell has A second protocol stack, the second protocol stack is a protocol stack related to transmission, the first protocol stack is located on the second protocol stack; the method includes:

The first cell sends first data to the second cell, the first data is sent to the terminal device by the second cell, and the first data passes the first protocol on the first cell side. The first data is processed by the second protocol stack on the second cell side; and/or,

The first cell receives the second data sent by the second cell, the second data is sent to the second cell by the terminal equipment, and the second data passes through the second cell on the second cell side. The second protocol stack performs processing, and the second data is processed on the first cell side through the first protocol stack.

The communication method provided by the embodiment of the present application is applied to the second cell in the converged networking architecture. The converged networking architecture also includes a first cell; the first cell has a first protocol stack, and the second cell has A second protocol stack, the second protocol stack is a protocol stack related to transmission, the first protocol stack is located on the second protocol stack; the method includes:

The second cell receives the first data sent by the first cell, sends the first data to the terminal device, and the first data is processed on the first cell side through the first protocol stack, The first data is processed through the second protocol stack on the second cell side; and/or,

The second cell receives the second data sent by the terminal device, sends the second data to the first cell, and the second data is processed on the second cell side through the second protocol stack, The second data is processed on the first cell side through the first protocol stack.

The communication device provided by the embodiment of the present application is applied to the first cell in the converged networking architecture. The converged networking architecture also includes a second cell; the first cell has a first protocol stack, and the second cell has A second protocol stack, the second protocol stack is a protocol stack related to transmission, the first protocol stack is located on the second protocol stack; the device includes: a communication unit and a processing unit;

The communication unit is used to send first data to the second cell, and the first data is sent to the terminal device by the second cell; the processing unit is used to process the first data through the first protocol stack. The first data is processed; the first data is processed on the second cell side through the second protocol stack; and/or,

The communication unit is used to receive the second data sent by the second cell, and the second data is sent to the second cell by the terminal device; the processing unit is used to pass the first protocol The stack processes the second data; the second data is processed on the second cell side through the second protocol stack.

The communication device provided by the embodiment of the present application is applied to the second cell in the converged networking architecture. The converged networking architecture also includes a first cell; the first cell has a first protocol stack, and the second cell has A second protocol stack, the second protocol stack is a protocol stack related to transmission, the first protocol stack is located on the second protocol stack; the device includes: a communication unit and a processing unit;

The communication unit is used to receive the first data sent by the first cell and send the first data to the terminal device; the processing unit is used to process the first data through the second protocol stack. Processing is performed, and the first data is processed through the first protocol stack on the first cell side; and/or,

The communication unit is used to receive the second data sent by the terminal device and send the second data to the first cell; the processing unit is used to process the second data through the second protocol stack. Processing is performed, and the second data is processed through the first protocol stack on the first cell side.

The converged networking architecture provided by the embodiment of the present application includes a first cell and at least one second cell. The first cell is used to perform the above communication method, and the second cell is used to perform the above communication method.

The communication device provided by the embodiment of the present application includes a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer program stored in the memory to perform the above communication method.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the above-mentioned communication method.

The computer-readable storage medium provided by the embodiment of the present application is used to store a computer program, and the computer program causes the computer to execute the above communication method.

The computer program product provided by the embodiment of the present application includes computer program instructions, which cause the computer to execute the above communication method.

The computer program provided by the embodiment of the present application, when run on a computer, causes the computer to perform the above communication method.

The technical solution of the embodiment of this application proposes a converged networking architecture. The converged networking architecture includes a first cell and at least one second cell. The first cell is a low-frequency cell, the second cell is a high-frequency cell, and the first cell There is a first protocol stack, and the second cell has a second protocol stack. The second protocol stack is a protocol stack related to transmission. The first protocol stack is located on top of the second protocol stack. In this way, the first cell and the second cell pass their respective The protocol stack works together to achieve the purpose of increasing capacity through the second cell on the premise of ensuring the quality of communication connections and business continuity through the first cell. In addition, since the second cell only has a protocol stack related to transmission, the second cell can be flexibly deployed and dynamically shut down (or enter an energy-saving state). On the one hand, it makes the network flexible and scalable; on the other hand, The purpose of network energy saving can be achieved.

Description of drawings

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the attached picture:

Figure 1 is a schematic diagram of an application scenario according to the embodiment of the present application;

Figure 2-1 is a schematic diagram of a converged networking architecture provided by an embodiment of this application;

Figure 2-2 is a schematic diagram of another converged networking architecture provided by the embodiment of the present application;

Figure 3 is a schematic flowchart of a communication method provided by an embodiment of the present application;

Figure 4-1 is a schematic diagram of a protocol stack provided by an embodiment of the present application;

Figure 4-2 is a schematic diagram 1 of the first cell implementing data offloading through the second cell provided by the embodiment of the present application;

Figure 5-1 is a schematic diagram of another protocol stack provided by an embodiment of the present application;

Figure 5-2 is a schematic diagram 2 of the first cell implementing data offloading through the second cell provided by the embodiment of the present application;

Figure 6 is a schematic diagram 3 of the first cell implementing data offloading through the second cell provided by the embodiment of the present application;

Figure 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 8 is a schematic diagram 2 of the structure of a communication device provided by an embodiment of the present application;

Figure 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 10 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Figure 1 is a schematic diagram of an application scenario according to the embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include a terminal device 110 and a network device 120 . The network device 120 may communicate with the terminal device 110 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

It should be understood that the embodiment of the present application is only exemplified by using the communication system 100, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), universal mobile communication system (Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication system, etc.

In the communication system 100 shown in FIG. 1 , the network device 120 may be an access network device that communicates with the terminal device 110 . The access network device may provide communication coverage for a specific geographical area and may communicate with terminal devices 110 (eg, UEs) located within the coverage area.

The network device 120 may be an evolutionary base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) equipment, It may be a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, access point, vehicle-mounted device, or wearable device. Equipment, hubs, switches, bridges, routers, or network equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN), etc.

The terminal device 110 may be any terminal device, including but not limited to terminal devices that are wired or wirelessly connected to the network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication Device, user agent, or user device. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, IoT devices, satellite handheld terminals, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistant) , PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolution networks, etc.

The terminal device 110 can be used for device to device (Device to Device, D2D) communication.

The wireless communication system 100 may also include a core network device 130 that communicates with the base station. The core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an access and mobility management function (Access and Mobility Management Function). , AMF), for example, Authentication Server Function (AUSF), for example, User Plane Function (UPF), for example, Session Management Function (Session Management Function, SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device of the LTE network, for example, a session management function + core network data gateway (Session Management Function + Core Packet Gateway, SMF + PGW- C) Equipment. It should be understood that SMF+PGW-C can simultaneously realize the functions that SMF and PGW-C can realize. In the process of network evolution, the above-mentioned core network equipment may also be called by other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited by the embodiments of this application.

Various functional units in the communication system 100 can also establish connections through next generation network (NG) interfaces to achieve communication.

For example, the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); access Network equipment, such as the next generation wireless access base station (gNB), can establish user plane data connections with UPF through NG interface 3 (referred to as N3); access network equipment can establish control plane signaling with AMF through NG interface 2 (referred to as N2) connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (referred to as N4); UPF can exchange user plane data with the data network through NG interface 6 (referred to as N6); AMF can communicate with SMF through NG interface 11 (referred to as N11) SMF establishes a control plane signaling connection; SMF can establish a control plane signaling connection with PCF through NG interface 7 (referred to as N7).

Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and other numbers of terminals may be included within the coverage of each base station. Equipment, the embodiments of this application do not limit this.

It should be noted that FIG. 1 only illustrates the system to which the present application is applicable in the form of an example. Of course, the method shown in the embodiment of the present application can also be applied to other systems. Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship. It should also be understood that the "instruction" mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation. It should also be understood that the "correspondence" mentioned in the embodiments of this application can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed. , the relationship between configuring and being configured. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be pre-saved in the device (for example, including terminal devices and network devices) with corresponding codes, tables or other available The method is implemented by indicating relevant information, and this application does not limit its specific implementation method. For example, predefined can refer to what is defined in the protocol. It should also be understood that in the embodiments of this application, the "protocol" may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this. .

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be optionally combined with the technical solutions of the embodiments of the present application, and they all belong to the embodiments of the present application. protected range.

The signals of low-frequency cells have the characteristics of long transmission distance and strong penetration, which can ensure the quality of communication connections and business continuity. However, the spectrum resources of low-frequency cells are limited and the cell capacity is low. The signals of high-frequency cells have characteristics such as short transmission distance and weak penetration, which cannot guarantee the quality of communication connections and business continuity. However, high-frequency cells have rich spectrum resources and large cell capacity. In the future, the business volume will become larger and larger, and the requirements for cell capacity will become higher and higher. At the same time, with the development of mobile communication technology, the requirements for the quality of communication connections and business continuity will also become higher and higher. In the future, high- and low-frequency integrated networking will be a direction to improve network performance. How to achieve high- and low-frequency integrated networking to improve network performance needs to be clarified.

To this end, the following technical solutions of the embodiments of the present application are proposed.

It should be noted that the technical solutions in the embodiments of this application can be, but are not limited to, applied to 5G networks, and may also be applied to future 6G networks, for example. In addition, for the 5G network-based concepts described in the embodiments of this application, there may be functionally similar concepts in other networks (such as future 6G networks, etc.), such as functionally similar physical channels, functionally similar Layer 2 (L2) Protocol stack, etc.

It should be noted that the "site" described in the embodiments of this application may be, but is not limited to, a "base station", for example, it may also be an access point (Access Point, AP) or a transmission and reception point (Transmission and Reception Point, TRP). wait.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application. The embodiments of this application include at least part of the following content.

Considering that during the network deployment process, it must go through network planning, network deployment, and network testing and verification before it can be commercialized. The network deployment cycle is long, and once deployed, the network remains on at all times, and the network does not have flexibility and scalability. For this reason, in the converged networking architecture proposed by the embodiments of this application, the protocol stack of the second cell only has a protocol stack related to transmission, which is mainly responsible for capacity improvement. In this way, since the second cell only has a protocol stack related to transmission, the second cell can be flexibly deployed and dynamically shut down (or enter an energy-saving state). On the one hand, it makes the network flexible and scalable; on the other hand, The purpose of network energy saving can be achieved.

Embodiments of the present application provide a converged networking architecture. The converged networking architecture includes a first cell and at least one second cell. The frequency of the first cell is lower than the frequency of the second cell. The first cell may be called a low frequency cell, and the second cell may be called a high frequency cell.

It should be noted that the definition of low-frequency cells and high-frequency cells can change with the development of mobile communication technology. For example, FR1 (410MHz–7.125GHz) specified in 5G NR represents the low-frequency band, and FR2 (24.25GHz–52.6GHz) Represents a high-frequency band. Cells whose frequency points belong to FR1 can be defined as low-frequency cells, and cells whose frequency points belong to FR2 can be defined as high-frequency cells.

In some implementations, the site where the first cell is located is different from the site where the second cell is located. In some embodiments, the first cell is located at a first site, and the second cell is located at a second site; the link between the first site and the second site is an ideal backhaul link. ); or, the link between the first site and the second site is a non-ideal backhaul link. Here, when the link between the first site and the second site is an ideal backhaul link, the time delay between the first site and the second site can be ignored. When the link between the first site and the second site is a non-ideal backhaul link, the delay between the first site and the second site cannot be ignored.

As an example, Figure 2-1 gives a schematic diagram of a converged networking architecture. As shown in Figure 2-1, the converged networking architecture includes 1 low-frequency cell and 4 high-frequency cells. The low-frequency cell and the high-frequency cell are located The sites are different (or the low-frequency cell and the high-frequency cell are at different site addresses). Low-frequency cells have a larger coverage area and are mainly responsible for the mobility of terminal equipment and Radio Resource Control (RRC) connection control, as well as connection management of high-frequency cells. High-frequency cells have a smaller coverage area and are mainly responsible for data transmission to effectively offload the load of low-frequency cells, thereby increasing capacity. The site where the high-frequency cell is located and the site where the low-frequency cell is located are connected through a first interface. The link corresponding to the first interface may be an ideal backhaul link or a non-ideal backhaul link. In 5G networks, the first interface is the Xn interface. In other networks, the first interface can also have other names.

In some embodiments, the second cell is a non-backward compatible cell. For a non-backward compatible cell, the cell does not send system broadcast information and paging messages, that is, it does not support terminal equipment in RRC idle state and RRC inactive state. of residence. The system broadcast information of the second cell is configured or broadcast through the first cell, and the paging message of the second cell is sent through the first cell. In this way, the function of the second cell is simpler and only realizes data transmission. On the one hand, it can reduce the cost of the second cell. On the other hand, it can dynamically and flexibly manage the second cell. On the other hand, it can achieve the purpose of network energy saving.

In some implementations, the site where the first cell is located is the same as the site where the second cell is located.

As an example, Figure 2-2 shows a schematic diagram of another converged networking architecture. As shown in Figure 2-2, the converged networking architecture has 1 low-frequency cell and 4 high-frequency cells. The low-frequency cell and the high-frequency cell are located The sites are the same (or the low-frequency cell and the high-frequency cell are at the same site address). The low-frequency cell has a large coverage area and is mainly responsible for the mobility and RRC connection control of the terminal equipment, as well as the connection management of the high-frequency cell. High-frequency cells have a smaller coverage area and are mainly responsible for data transmission to effectively offload the load of low-frequency cells, thereby increasing capacity.

It should be noted that the converged networking architecture shown in Figure 2-1 and Figure 2-2 only illustrates one low-frequency cell and multiple high-frequency cells associated with the low-frequency cell, but it is not limited to this. The network architecture can include a larger number of low-frequency cells, and each low-frequency cell can be associated with one or more high-frequency cells.

Figure 3 is a schematic flow chart of a communication method provided by an embodiment of the present application, applied to the first cell in a converged networking architecture. The converged networking architecture also includes at least one second cell; the first cell has a first protocol stack, the second cell has a second protocol stack, the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located on the second protocol stack; as shown in Figure 3, the The communication method includes the following steps 301 and/or 302:

Step 301: The first cell sends first data to the second cell, the second cell receives the first data sent by the first cell, and sends the first data to the terminal device. A piece of data is processed on the first cell side through the first protocol stack, and the first data is processed on the second cell side through the second protocol stack.

Here, in the case of downlink transmission, the first cell processes the first data through the first protocol stack and sends the processed first data to the second cell, and the second cell processes the received data through the second protocol stack. Perform processing and send the processed data to the terminal device. Wherein, the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located on the second protocol stack.

Step 302: The second cell receives the second data sent by the terminal device and sends the second data to the first cell. The first cell receives the second data sent by the second cell. The second data is processed on the second cell side through the second protocol stack, and the second data is processed on the first cell side through the first protocol stack.

Here, in the case of uplink transmission, the terminal device sends the second data to the second cell, the second cell processes the received second data through the second protocol stack, and sends the processed second data to the first cell. , the first cell processes the received data through the first protocol stack, and submits the processed data to the upper layer.

The technical solutions of the embodiments of this application are described below in combination with different implementation methods of the converged networking architecture.

Option One

In some embodiments, the converged networking architecture includes a first cell and at least one second cell. The site where the first cell is located is different from the site where the second cell is located, and the first cell is located on a first site. The link between the site and the second site where the second cell is located is an ideal backhaul link. The first cell has a first protocol stack, the second cell has a second protocol stack, the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located between the second protocol stack. superior.

In some implementations, the first protocol stack and the second protocol stack can be implemented in, but are not limited to, the following ways:

Method 1: The first protocol stack includes at least one of the following: Service Data Adaption Protocol (SDAP) entity, Packet Data Convergence Protocol (PDCP) entity, Radio Link Control (Radio Link Control, RLC) entity, Media Access Control (Media Access Control, MAC) entity, the second protocol stack includes a physical (PHY) entity.

Method 2: The first protocol stack includes at least one of the following: SDAP entity, target entity, and MAC entity. The second protocol stack includes a PHY entity. The target entity has at least some functions of the PDCP entity and/or the RLC entity. .

In the above solution, the functions of the PHY entity, MAC entity, RLC entity, PDCP entity, and SDAP entity can be defined with reference to 5G related standards.

In the above solution, the target entity has at least part of the functions of the PDCP entity and/or the RLC entity. For example, the function of the target entity is a combination of the functions of the PDCP entity and the functions of the RLC entity. The target entity may be called a Packet Process and Link Control (PPLC) entity. Of course, the target entity may also have other names, which is not limited in this application.

In this embodiment of the present application, the first cell also has a PHY entity.

In this embodiment of the present application, the first cell also has an RRC entity. The RRC entity on the first cell may be used to process RRC signaling on the first cell side and/or RRC signaling on the second cell side. The RRC signaling here may be related to transmission configuration, for example. RRC signaling (such as RRC signaling related to underlying transmission resources), or RRC signaling carrying broadcast information, RRC signaling carrying MSG3, RRC signaling carrying physical side resources (i.e., bottom layer resources) reconfiguration, carrying RRC signaling of carrier management (such as carrier addition/deletion/modification, etc.) information in CA, etc.

In an example, Figure 4-1 shows a schematic diagram of a protocol stack. As shown in Figure 4-1, the implementation of the protocol stack of the first cell has the following options: Option 1-2) SDAP entity, PDCP Entity, RLC entity, MAC entity and PHY entity; options 1-2) SDAP entity, PPLC entity, MAC entity and PHY entity. The implementation of the protocol stack of the second cell has the following options: Option 2-1) PHY entity. Option 2-1) can be implemented in combination with option 1-1) or option 1-2). In addition, the implementation of the protocol stack of the terminal device has the following options: Option 3-1) SDAP entity, PDCP entity, RLC entity, MAC entity and PHY entity; Option 3-2) SDAP entity, PPLC entity, MAC entity and PHY entity.

The first cell may implement data offloading through the second cell. As shown in Figure 4-2, for downlink transmission, the first data sent (i.e., offloaded) by the first cell to the second cell is carried in the downlink MAC PDU; for uplink transmission, the first data sent by the first cell to the second cell is carried in the downlink MAC PDU. The second data sent (that is, aggregated) by the second cell to the first cell is carried in the uplink MAC PDU. Here, MAC PDU is also MAC TB (can also be referred to as TB).

In the embodiment of this application, the operations supported by the second site or the second cell include the following situations:

Case 1) The second station or the second cell supports at least one of the first operation, the second operation, the third operation, the fourth operation and the fifth operation;

The first operation includes at least one operation: sending a downlink data channel and receiving an uplink data channel;

The second operation includes the following operations: receiving an uplink reference signal;

The third operation includes at least one of the following operations: sending a downlink control channel and receiving an uplink control channel;

The fourth operation includes the following operations: receiving a report reported by the terminal device;

The fifth operation includes the following operation: sending a first MAC CE, which is used to activate and/or deactivate a secondary cell (Scell) on the second site side. It should be noted that the first MAC CE is carried in the downlink data channel.

Here, taking 5G as an example, the downlink data channel is a Physical Downlink Shared Channel (PDSCH), and the uplink data channel is a Physical Uplink Shared Channel (PUSCH).

Here, taking 5G as an example, the uplink reference signal may be, for example, a sounding reference signal (Sounding Reference Signal, SRS). The receiving SRS can also be understood as measuring SRS.

Here, taking 5G as an example, the downlink control channel is a physical downlink control channel (Physical Downlink Control Channel, PDCCH), and the uplink control channel is a physical uplink control channel (Physical Uplink Control Channel, PUCCH). It should be noted that the prerequisite for the second station or the second cell to support sending a downlink control channel is that the second station or the second cell has downlink control channel resources (such as PDCCH resources). Similarly, the second station or the second cell has downlink control channel resources (such as PDCCH resources). The premise that the second station or the second cell supports receiving the uplink control channel is that the second station or the second cell has uplink control channel resources (such as PUCCH resources).

As an example: the downlink control channel is used to carry at least one of the following: scheduling information of the downlink data channel (may also be referred to as downlink scheduling information); scheduling information of the uplink data channel (may also be referred to as uplink scheduling information).

As an example: the uplink control channel is used to carry the following information: Hybrid Automatic Repeat Request (HARQ) feedback information corresponding to the downlink data channel. Here, the HARQ feedback information may be positive acknowledgment (ACK)/negative acknowledgment (NACK) feedback information.

As an example: the report includes at least one of the following: a channel state information (Channel State Information, CSI) report, a power headroom report (Power Headroom Report, PHR) report.

For the above first operation, after receiving the first data sent by the first station or the first cell, the second station or the second cell sends the downlink data channel carrying the first data to the terminal device. After receiving the uplink data channel carrying the second data sent by the terminal equipment, the second station or the second cell sends the second data to the first station or the first cell. Of course, the downlink data channel and the uplink data channel can also carry other data information.

For the above second operation, after receiving the uplink reference signal of the terminal equipment, the second station or the second cell sends the measurement result of the uplink reference signal to the first station or the first cell. The first station or the first cell can according to The measurement results are used to manage the second site or the second cell, such as estimating TA, etc.

For the above third operation, after the second station or the second cell receives the downlink control information (such as downlink scheduling information, uplink scheduling information) sent by the first station or the first cell, it will carry the downlink control information on the downlink control channel. sent to the terminal device. After receiving the uplink control channel carrying uplink control information (such as HARQ feedback information) sent by the terminal equipment, the second station or the second cell sends the uplink control information to the first station or the first cell.

For the above fourth operation, after receiving the report sent by the terminal device, the second station or the second cell sends the report to the first station or the first cell. The first station or the first cell can respond to the second station based on the report. Or manage the second community.

For the above fifth operation, the second station or the second cell receives the first MAC CE sent by the first station or the first cell, and sends the first MAC CE to the terminal device, and the first MAC CE is used to activate and/or deactivate the Scell on the second site side.

Case 2) The second station or the second cell supports the first operation and/or the second operation, and does not support at least one of the third operation, the fourth operation and the fifth operation;

The fifth operation includes the following operation: sending a first MAC CE, which is used to activate and/or deactivate the Scell on the second site side.

Here, taking 5G as an example, the downlink data channel is PDSCH, and the uplink data channel is PUSCH.

Here, taking 5G as an example, the uplink reference signal may be SRS, for example. The receiving SRS can also be understood as measuring SRS.

Here, taking 5G as an example, the downlink control channel is PDCCH, and the uplink control channel is PUCCH. It should be noted that the second station or the second cell does not support sending a downlink control channel, and the second station or the second cell may not have downlink control channel resources (such as PDCCH resources). Similarly, the The second station or the second cell does not support receiving the uplink control channel, and the second station or the second cell may not have uplink control channel resources (such as PUCCH resources).

For the above third operation, if the second station or the second cell does not support sending a downlink control channel, the second station or the first cell may be implemented through the first station or the first cell. The downlink scheduling and/or uplink scheduling on the second cell side realizes cross-site scheduling or cross-carrier scheduling. Specifically, the first station or the first cell sends first downlink control information (DCI) to the terminal device, the first DCI carries first scheduling information, and the first scheduling information is for scheduling the downlink data channel and/or the uplink data channel of the second cell.

In order to implement cross-site scheduling, the first site needs to know the Scell resource configuration of the second site. To this end, the first site obtains the Scell resource configuration information of the second site. In this way, Only the first station can implement scheduling for a certain cell on the second station side. Further, in order for the first station to schedule a certain cell on the second station side, the scheduled cell needs to be clearly indicated in the scheduling DCI (ie, the first DCI). Taking the scheduled cell as the second cell as an example, the first scheduling information in the first DCI includes first information, and the first information is used to indicate the scheduled second cell. Here, the first information can be implemented in the following two ways:

Method 1: The first information includes identification information of the second site and identification information of the second cell, and the identification information of the second cell is not uniquely numbered among sites. As an example: the identification information of the second cell includes at least one of the following: serving cell index (serving cell index), secondary cell index (SCell index), and carrier index (Carrier Index, CI).

Here, for the Scell of each site, the identification information of the Scell (such as serving cell index, secondary cell index, carrier index) does not need to be uniformly numbered between sites. The Scell of each site can be numbered starting from 1, or That is to say, the identification information of Scells at different sites may be the same. In this case, when cross-site scheduling is performed through the scheduling DCI (that is, the first DCI), the DCI needs to include the site where the scheduled Scell is located. The identification information and the identification information of the scheduled Scell, so that a scheduled Scell can be uniquely determined.

Method 2: The first information includes identification information of the second cell, and the identification information of the second cell has a unique number among sites. As an example: the identification information of the second cell includes at least one of the following: serving cell index, secondary cell index, and carrier index.

Here, for the Scells of each site, the identification information of the Scell (such as serving cell index, secondary cell index, carrier index) needs to be uniformly numbered between sites. The first site can be used to uniformly number the Scells of each site. , the identification information of Scells at different sites will not overlap. In this case, when cross-site scheduling is performed by scheduling DCI (that is, the first DCI), the DCI only needs to contain the identification information of the scheduled Scell, so , a scheduled Scell can be uniquely determined.

For the above third operation, if the second station or the second cell does not support receiving the uplink control channel, the first station or the first cell may receive the third message sent by the terminal device through the first station or the first cell. The HARQ feedback information on the second site or the second cell side realizes receiving HARQ feedback information across sites or receiving HARQ feedback information across carriers. Specifically, the first station or the first cell receives an uplink control channel sent by a terminal device, and the uplink control channel carries HARQ feedback information on the second station or the second cell side.

Here, the HARQ feedback information of the first station or the first cell side and the HARQ feedback information of the second station or the second cell side may have the following coding methods:

Method A: The HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are jointly encoded. It can be understood that, in addition to carrying the HARQ feedback information of the second station or the second cell side, the uplink control channel also carries the HARQ feedback information of the first station or the first cell side. information.

In some embodiments, the joint coding method is: according to predefined rules, the HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are Feedback information is jointly coded.

As an example: the predefined rule may be to encode the HARQ feedback information of each station or each cell in a certain order, thereby generating a HARQ feedback codebook. The order here can be the order of cells "first frequency domain and then time domain", or the order of cells "first time domain and then frequency domain".

As an example: the predefined rule may be to encode the HARQ feedback information of each station or each cell in a cascade manner, thereby generating a HARQ feedback codebook. The cascading method here refers to cascading HARQ feedback information of cells under a site with HARQ feedback information of cells under other sites. The first station may constrain the length of the HARQ feedback information of the second station and/or the first station in the HARQ feedback codebook (that is, the number of occupied bits) through RRC signaling configuration. In this way, the terminal device may respond to the second station according to the constraint. The HARQ feedback information of the station and the first station is jointly encoded.

In some embodiments, the joint coding method is: following instructions from the network side, the HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are HARQ feedback information is jointly encoded.

As an example: When the network side schedules the downlink data channel through DCI, the DCI carries the Downlink Assignment Index (DAI). The DAI is used to indicate that the ACK/NACK feedback corresponding to the downlink data channel is fed back in the HARQ position in the codebook, so that the terminal device can jointly encode the HARQ feedback information of the second station and the first station according to the DCI.

Method B: The HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are independently encoded.

Here, the HARQ feedback information of different stations or different cells is independently encoded, and the first station or the first cell sends second RRC signaling to the terminal device, and the second RRC signaling carries the second configuration information, The second configuration information is used to indicate a first uplink control channel resource, and the first uplink control channel resource is an uplink control channel resource dedicated to transmitting HARQ feedback information on the second site or the second cell side. Here, the network side can separately configure uplink control channel resources dedicated to each station or each cell for ACK/NACK feedback through RRC signaling.

For the above fourth operation, when the second site or the second cell does not support receiving the report reported by the terminal device, the first site or the first cell receives the third report reported by the terminal device. Report on the second site or the second cell side. As an example: the report includes at least one of the following: CSI report, PHR report.

Here, when the second station or the second cell does not support receiving the report reported by the terminal device, the first station or the first cell sends the first RRC signaling to the terminal device. RRC signaling carries first configuration information, and the first configuration information is used to instruct the terminal device to report a report of the second cell through the first cell. Here, the first configuration information includes at least one of the following: reporting through the first cell, reporting on the second cell, and the cell associated with the first cell is the second cell. Here, in order to clarify the second cell, the first configuration information includes second information, and the second information is used to indicate the second cell. Here, the second information can be implemented in the following two ways:

Method 1: The second information includes identification information of the second site and identification information of the second cell, and the identification information of the second cell is not uniquely numbered among sites. As an example: the identification information of the second cell includes at least one of the following: serving cell index (serving cell index), secondary cell index (SCell index).

Here, for the Scell of each site, the identification information of the Scell (such as serving cell index, secondary cell index) does not need to be uniformly numbered between sites. The Scell of each site can be numbered starting from 1, that is, The identification information of Scells at different sites may be the same. In this case, when configuring the terminal device to report a report of a certain Scell through RRC signaling, the RRC signaling needs to include the identification information of the site where the Scell is located and the identification information of the Scell. Scell's identification information, so that a Scell can be uniquely determined.

Method 2: The second information includes identification information of the second cell, and the identification information of the second cell has a unique number among sites. As an example: the identification information of the second cell includes at least one of the following: serving cell index.

Here, for the Scell of each site, the identification information of the Scell (such as the serving cell index, the secondary cell index) needs to be uniformly numbered between sites. The first site can be used to uniformly number the Scells of each site. Different sites There will be no overlap in the identification information of the Scell. In this case, when configuring the terminal device to report a report of a certain Scell through RRC signaling, the RRC signaling only needs to contain the identification information of the Scell. In this way, it can be uniquely determined. Create a Scell.

For the above fifth operation, when the second station or the second cell does not support sending the first MAC CE, the first station or the first cell sends the first MAC CE to the terminal device, The first MAC CE is used to activate and/or deactivate the Scell on the second site side.

Option II

In some embodiments, the converged networking architecture includes a first cell and at least one second cell. The site where the first cell is located is different from the site where the second cell is located, and the first cell is located on a first site. The link between the site and the second site where the second cell is located is a non-ideal backhaul link. The first cell has a first protocol stack, the second cell has a second protocol stack, the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located between the second protocol stack. superior.

Method 1: The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and first MAC entity, and the second protocol stack includes a second MAC entity and a PHY entity.

Method 2: The first protocol stack includes at least one of the following: an SDAP entity, a target entity, and a first MAC entity; the second protocol stack includes a second MAC entity and a PHY entity; the target entity has a PDCP entity and/or or at least part of the functionality of an RLC entity.

In the above solution, the target entity has at least part of the functions of the PDCP entity and/or the RLC entity. For example, the function of the target entity is a combination of the functions of the PDCP entity and the functions of the RLC entity. The target entity may be called a PPLC entity. Of course, the target entity may also have other names, which is not limited in this application.

In an example, Figure 5-1 shows a schematic diagram of a protocol stack. As shown in Figure 5-1, the implementation of the protocol stack of the first cell has the following options: Option 1-2) SDAP entity, PDCP Entity, RLC entity, MAC entity and PHY entity; options 1-2) SDAP entity, PPLC entity, MAC entity and PHY entity. The implementation of the protocol stack of the second cell has the following options: Option 2-1) MAC entity and PHY entity. Option 2-1) can be implemented in combination with option 1-1) or option 1-2). In addition, the implementation of the protocol stack of the terminal device has the following options: Option 3-1) SDAP entity, PDCP entity, RLC entity, MAC entity and PHY entity; Option 3-2) SDAP entity, PPLC entity, MAC entity and PHY entity.

The first cell may implement data offloading through the second cell. As shown in Figure 5-2, for downlink transmission, the first data sent (that is, offloaded) by the first cell to the second cell is carried in the downlink RLC PDU; for uplink transmission, the first data sent by the first cell to the second cell is carried in the downlink RLC PDU. The second data sent (that is, aggregated) by the second cell to the first cell is carried in the uplink RLC PDU.

In the embodiment of this application, when the link between the first site and the second site is a non-ideal backhaul link, the delay between the first site and the second site cannot be ignored, and data scheduling requires scheduling decisions. The entity (that is, the MAC entity) knows the status and usage of wireless resources in real time. At this time, the second station needs to have a MAC entity to realize reasonable data scheduling by the second station itself. In addition, there is no RLC entity in the second site. Therefore, when the second site needs to be released or replaced, there is no need to rebuild the RLC entity, thus avoiding packet loss problems.

In some embodiments, a logical channel level (per logical channel) connection is established between the first station and the second station, and the connection is used between the first station and the second station. Transmit uplink RLC PDU and/or downlink RLC PDU. As an example: the connection is a GTP tunnel or an HTTP channel.

third solution

In some embodiments, the converged networking architecture includes a first cell and at least one second cell, and the site where the first cell is located is the same as the site where the second cell is located. The first cell has a first protocol stack, the second cell has a second protocol stack, the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located between the second protocol stack. superior.

Method 1: The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and MAC entity, and the second protocol stack includes a PHY entity.

In this embodiment of the present application, the first cell also has an RRC entity.

The first cell may implement data offloading through the second cell. As shown in Figure 6, for downlink transmission, the first data sent (i.e., offloaded) by the first cell to the second cell is carried in the downlink MAC PDU; for uplink transmission, the second cell The second data sent (that is, aggregated) to the first cell is carried in the uplink MAC PDU. Here, MAC PDU is also MAC TB (can also be referred to as TB).

In the embodiment of this application, the operations supported by the second cell include the following situations:

Case 1) The second cell supports at least one of the first operation, the second operation, the third operation and the fourth operation;

The fourth operation includes the following operation: receiving a report reported by the terminal device.

Here, taking 5G as an example, the downlink control channel is PDCCH, and the uplink control channel is PUCCH. It should be noted that the prerequisite for the second cell to support sending downlink control channels is that the second cell has downlink control channel resources (such as PDCCH resources). Similarly, the prerequisite for the second cell to support receiving uplink control channels is , the second cell has uplink control channel resources (such as PUCCH resources).

As an example: the uplink control channel is used to carry the following information: HARQ feedback information corresponding to the downlink data channel.

As an example: the report includes at least one of the following: CSI report, PHR report.

For the above first operation, after receiving the first data sent by the first cell, the second cell sends the downlink data channel carrying the first data to the terminal device. After receiving the uplink data channel carrying the second data sent by the terminal equipment, the second cell sends the second data to the first cell. Of course, the downlink data channel and the uplink data channel can also carry other data information.

For the above second operation, after receiving the uplink reference signal from the terminal equipment, the second cell sends the measurement result of the uplink reference signal to the first cell. The first cell can manage the second cell based on the measurement result, for example, estimate TA wait.

For the above third operation, after receiving the downlink control information (such as downlink scheduling information and uplink scheduling information) sent by the first cell, the second cell sends the downlink control channel carrying the downlink control information to the terminal device. After receiving the uplink control channel carrying uplink control information (such as HARQ feedback information) sent by the terminal equipment, the second cell sends the uplink control information to the first cell.

For the above fourth operation, after receiving the report sent by the terminal device, the second cell sends the report to the first cell, and the first cell can manage the second cell based on the report.

Case 2) The second cell supports the first operation and/or the second operation, and does not support the third operation and/or the fourth operation;

The fourth operation includes the following operation: receiving a report reported by a terminal device.

Here, taking 5G as an example, the downlink control channel is PDCCH, and the uplink control channel is PUCCH. It should be noted that the second cell does not support sending downlink control channels, and the second cell may not have downlink control channel resources (such as PDCCH resources). Similarly, the second cell does not support receiving uplink control channels, so The second cell may not have uplink control channel resources (such as PUCCH resources).

For the above third operation, when the second cell does not support sending downlink control channels, downlink scheduling and/or uplink scheduling on the second cell side can be implemented through the first cell, that is, cross-carrier Scheduling. Specifically, the first cell sends a first DCI to the terminal device, the first DCI carries first scheduling information, and the first scheduling information is used to schedule the downlink data channel and/or uplink data of the second cell. channel.

For the above third operation, when the second cell does not support receiving the uplink control channel, the HARQ feedback information on the second cell side sent by the terminal device can be received through the first cell, that is, cross-carrier Receive HARQ feedback information. Specifically, the first cell receives an uplink control channel sent by a terminal device, and the uplink control channel carries HARQ feedback information on the second cell side.

Here, the HARQ feedback information on the first cell side and the HARQ feedback information on the second cell side can have the following coding methods:

Method A: The HARQ feedback information on the second cell side and the HARQ feedback information on the first cell side are jointly encoded. It can be understood that, in addition to carrying HARQ feedback information on the second cell side, the uplink control channel also carries HARQ feedback information on the first cell side.

In some implementations, the joint encoding method is: jointly encoding the HARQ feedback information of the second cell side and the HARQ feedback information of the first cell side according to a predefined rule.

As an example: the predefined rule may be to encode the HARQ feedback information of each cell in a certain order, thereby generating a HARQ feedback codebook. The order here can be the order of cells "first frequency domain and then time domain", or the order of cells "first time domain and then frequency domain".

As an example: the predefined rule may be to encode the HARQ feedback information of each cell in a cascade manner, thereby generating a HARQ feedback codebook. The cascading method here means that the HARQ feedback information of the cell is cascaded with the HARQ feedback information of other cells. The first cell may constrain the second cell and/or the length of the HARQ feedback information of the second cell in the HARQ feedback codebook (that is, the number of occupied bits) through RRC signaling configuration. In this way, the terminal device may configure the second cell according to the constraint. The HARQ feedback information of the cell and the first cell are jointly encoded.

In some embodiments, the joint coding method is: jointly coding the HARQ feedback information on the second cell side and the HARQ feedback information on the first cell side according to instructions from the network side.

As an example: when the network side schedules the downlink data channel through DCI, the DCI carries DAI, which is used to indicate the position of the ACK/NACK feedback corresponding to the downlink data channel in the HARQ feedback codebook. In this way, the terminal device can The HARQ feedback information of the second cell and the first cell is jointly encoded according to the DCI.

Method B: The HARQ feedback information on the second cell side and the HARQ feedback information on the first cell side are independently encoded.

Here, HARQ feedback information of different cells is independently encoded, and the first cell sends second RRC signaling to the terminal device. The second RRC signaling carries second configuration information, and the second configuration information is used to indicate First uplink control channel resources, the first uplink control channel resources are uplink control channel resources dedicated to transmitting HARQ feedback information on the second cell side. Here, the network side can separately configure uplink control channel resources dedicated to each cell for ACK/NACK feedback through RRC signaling.

For the above fourth operation, when the second cell does not support receiving the report reported by the terminal device, the first cell receives the report reported by the terminal device on the second cell side. As an example: the report includes at least one of the following: CSI report, PHR report.

Here, when the second cell does not support receiving reports reported by terminal equipment, the first cell sends first RRC signaling to the terminal equipment, and the first RRC signaling carries first configuration information. A piece of configuration information is used to instruct the terminal device to report the report of the second cell through the first cell. Here, the first configuration information includes at least one of the following: reporting through the first cell, reporting on the second cell, and the cell associated with the first cell is the second cell. Here, in order to clarify the second cell, the first configuration information includes second information, and the second information is used to indicate the second cell.

The technical solution of the embodiment of this application proposes a network deployment method for high- and low-frequency integrated networking and a collaborative working method between high- and low-frequency cells, making the network flexible and scalable, reaching a network that can be quickly deployed and dynamically shut down. To achieve the purpose of network energy saving.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple modifications all belong to the protection scope of this application. For example, each specific technical feature described in the above-mentioned specific embodiments can be combined in any suitable way without conflict. In order to avoid unnecessary repetition, this application will no longer describe various possible combinations. Specify otherwise. For another example, any combination of various embodiments of the present application can be carried out. As long as they do not violate the idea of the present application, they should also be regarded as the contents disclosed in the present application. For another example, on the premise of no conflict, each embodiment described in this application and/or the technical features in each embodiment can be arbitrarily combined with the existing technology, and the technical solution obtained after the combination shall also fall within the scope of this application. protected range.

It should also be understood that in the various method embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in this application. The implementation of the examples does not constitute any limitations. In addition, in the embodiments of this application, the terms "downlink", "uplink" and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate that the transmission direction of signals or data is from the station. The first direction to the user equipment of the cell, "uplink" is used to indicate that the transmission direction of the signal or data is the second direction from the user equipment of the cell to the site, and "sidelink" is used to indicate that the transmission direction of the signal or data is A third direction sent from User Device 1 to User Device 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiment of this application, the term "and/or" is only an association relationship describing associated objects, indicating that three relationships can exist. Specifically, A and/or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

Figure 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application. It is applied to the first cell in a converged networking architecture. The converged networking architecture also includes a second cell; the first cell has a first protocol. stack, the second cell has a second protocol stack, the second protocol stack is a protocol stack related to transmission, the first protocol stack is located on the second protocol stack; the device includes: a communication unit 701 and processing unit 702;

The communication unit 701 is used to send first data to the second cell, and the first data is sent to the terminal device by the second cell; the processing unit 702 is used to use the first protocol stack The first data is processed; the first data is processed on the second cell side through the second protocol stack; and/or,

The communication unit 701 is used to receive the second data sent by the second cell, and the second data is sent to the second cell by the terminal device; the processing unit 702 is used to pass the second data to the second cell. A protocol stack processes the second data; the second data is processed on the second cell side through the second protocol stack.

In some implementations, the site where the first cell is located is different from the site where the second cell is located; or, the site where the first cell is located is the same as the site where the second cell is located.

In some embodiments, when the site where the first cell is located is different from the site where the second cell is located, the first cell is located at the first site, and the second cell is located at the second site;

The link between the first site and the second site is an ideal backhaul link; or,

The link between the first site and the second site is a non-ideal backhaul link.

In some embodiments, the link between the first site where the first cell is located and the second site where the second cell is located is an ideal backhaul link, or the site where the first cell is located and the second site where the second cell is located are When the site where the second cell is located is the same,

The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and MAC entity, and the second protocol stack includes a PHY entity; or,

The first protocol stack includes at least one of the following: SDAP entity, target entity, and MAC entity. The second protocol stack includes a PHY entity. The target entity has at least part of the functions of the PDCP entity and/or the RLC entity.

In some implementations, the first data is carried in a downlink MAC PDU; and/or the second data is carried in an uplink MAC PDU.

In some embodiments, the second site or the second cell supports at least one of a first operation, a second operation, a third operation, a fourth operation and a fifth operation;

In some embodiments, the second station or the second cell supports the first operation and/or the second operation, and does not support at least one of the third operation, the fourth operation and the fifth operation;

In some embodiments, the downlink control channel is used to carry at least one of the following: scheduling information of the downlink data channel; scheduling information of the uplink data channel.

In some implementations, the uplink control channel is used to carry the following information: HARQ feedback information corresponding to the downlink data channel.

In some embodiments, the report includes at least one of the following: CSI report, PHR report.

In some embodiments, when the second site or the second cell does not support sending a downlink control channel, the communication unit 701 is used to send a first DCI to the terminal device, where the first DCI carries first scheduling information, and the first scheduling information is used to schedule the downlink data channel and/or uplink data channel of the second cell.

In some implementations, the first scheduling information includes first information used to indicate the scheduled second cell.

In some implementations, the first information includes identification information of the second site and identification information of the second cell, and the identification information of the second cell is not uniquely numbered among sites.

In some implementations, the first information includes identification information of the second cell, and the identification information of the second cell has a unique number among sites.

In some embodiments, the identification information of the second cell includes at least one of the following: serving cell index, secondary cell index, and carrier index.

In some embodiments, when the second site or the second cell does not support receiving reports reported by terminal equipment, the communication unit 701 is configured to send the first RRC signaling to the terminal equipment. An RRC signaling carries first configuration information, and the first configuration information is used to instruct the terminal device to report a report of the second cell through the first cell.

In some implementations, the first configuration information includes second information, and the second information is used to indicate the second cell.

In some implementations, the second information includes identification information of the second site and identification information of the second cell, and the identification information of the second cell is not uniquely numbered among sites.

In some implementations, the second information includes identification information of the second cell, and the identification information of the second cell has a unique number among sites.

In some embodiments, the identification information of the second cell includes at least one of the following: a serving cell index and a secondary cell index.

In some embodiments, when the second station or the second cell does not support receiving an uplink control channel, the communication unit 701 is configured to receive an uplink control channel sent by a terminal device, and the uplink control channel carries HARQ feedback information of the second station or the second cell side.

In some embodiments, the uplink control channel also carries HARQ feedback information of the first station or the first cell side.

In some implementations, the HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are jointly encoded.

In some embodiments, the joint encoding method includes at least one of the following:

Jointly encoding the HARQ feedback information of the second site or the second cell side and the HARQ feedback information of the first site or the first cell side according to predefined rules;

The HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are jointly encoded according to instructions from the network side.

In some embodiments, the HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are independently encoded.

In some embodiments, the communication unit 701 is configured to send second RRC signaling to the terminal device, the second RRC signaling carries second configuration information, and the second configuration information is used to indicate the first Uplink control channel resources, the first uplink control channel resources are uplink control channel resources dedicated to transmitting HARQ feedback information on the second station or the second cell side.

In some embodiments, when the link between the first site where the first cell is located and the second site where the second cell is located is a non-ideal backhaul link,

The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and first MAC entity, and the second protocol stack includes a second MAC entity and a PHY entity; or,

The first protocol stack includes at least one of the following: SDAP entity, target entity, and first MAC entity. The second protocol stack includes a second MAC entity and a PHY entity. The target entity has a PDCP entity and/or an RLC entity. at least some of its functions.

In some implementations, the first data is carried in a downlink RLC PDU; and/or the second data is carried in an uplink RLC PDU.

In some embodiments, a logical channel level connection is established between the first station and the second station, and the connection is used to transmit uplink RLC PDUs and /or downlink RLC PDU.

In some embodiments, the connection is a GTP tunnel or an HTTP channel.

In some implementations, the frequency point of the first cell is lower than the frequency point of the second cell.

Persons skilled in the art should understand that the relevant description of the above-mentioned communication device in the embodiment of the present application can be understood with reference to the relevant description of the communication method in the embodiment of the present application.

Figure 8 is a schematic diagram 2 of the structure of a communication device provided by an embodiment of the present application. It is applied to a second cell in a converged networking architecture. The converged networking architecture also includes a first cell; the first cell has a first protocol. stack, the second cell has a second protocol stack, the second protocol stack is a protocol stack related to transmission, the first protocol stack is located on the second protocol stack; the device includes: a communication unit 801 and processing unit 802;

The communication unit 801 is used to receive the first data sent by the first cell and send the first data to the terminal device; the processing unit 802 is used to process the first data through the second protocol stack. One data is processed, and the first data is processed through the first protocol stack on the first cell side; and/or,

The communication unit 801 is used to receive the second data sent by the terminal device and send the second data to the first cell; the processing unit 802 is used to process the third data through the second protocol stack. The second data is processed through the first protocol stack on the first cell side.

In some embodiments, the second site or the second cell supports the first operation and/or the second operation, and does not support at least one of the third operation, the fourth operation and the fifth operation;

In some embodiments, the connection is a GTP tunnel or an HTTP channel.

Figure 9 is a schematic structural diagram of a communication device 900 provided by an embodiment of the present application. The communication device 900 shown in Figure 9 includes a processor 910. The processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in Figure 9, the communication device 900 may further include a memory 920. The processor 910 can call and run the computer program from the memory 920 to implement the method in the embodiment of the present application.

The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

Optionally, as shown in Figure 9, the communication device 900 may also include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Among them, the transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 900 may specifically be the site where the first cell in the embodiment of the present application is located, and the communication device 900 may implement the corresponding processes implemented by the site where the first cell is located in the various methods of the embodiment of the present application, For the sake of brevity, no further details will be given here.

Optionally, the communication device 900 may specifically be the site where the second cell in the embodiment of the present application is located, and the communication device 900 may implement the corresponding processes implemented by the site where the second cell is located in the various methods of the embodiment of the present application, For the sake of brevity, no further details will be given here.

Figure 10 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1000 shown in Figure 10 includes a processor 1010. The processor 1010 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10 , the chip 1000 may also include a memory 1020 . The processor 1010 can call and run the computer program from the memory 1020 to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device independent of the processor 1010, or may be integrated into the processor 1010.

Optionally, the chip 1000 may also include an input interface 1030. The processor 1010 can control the input interface 1030 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

Optionally, the chip 1000 may also include an output interface 1040. The processor 1010 can control the output interface 1040 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

Optionally, the chip can be applied to the site where the first cell is located in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the site where the first cell is located in the various methods of the embodiment of the present application. For the sake of simplicity, I won’t go into details here.

Optionally, the chip can be applied to the site where the second cell is located in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the site where the second cell is located in the various methods of the embodiment of the present application. For the sake of simplicity, I won’t go into details here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip and has signal processing capabilities. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available processors. Programmed logic devices, discrete gate or transistor logic devices, discrete hardware components. Each method, step and logical block diagram disclosed in the embodiment of this application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of illustration, but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

It should be understood that the above memory is an exemplary but not restrictive description. For example, the memory in the embodiment of the present application can also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, memories in embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the site where the first cell is located in the embodiment of the present application, and the computer program causes the computer to execute the methods implemented by the site where the first cell is located in the embodiments of the present application. The corresponding process will not be repeated here for the sake of brevity.

Optionally, the computer-readable storage medium can be applied to the site where the second cell is located in the embodiment of the present application, and the computer program causes the computer to execute the methods implemented by the site where the second cell is located in the embodiment of the present application. The corresponding process will not be repeated here for the sake of brevity.

An embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the site where the first cell is located in the embodiment of the present application, and the computer program instructions cause the computer to perform the corresponding steps implemented by the site where the first cell is located in each method of the embodiment of the present application. The process, for the sake of brevity, will not be repeated here.

Optionally, the computer program product can be applied to the site where the second cell is located in the embodiment of the present application, and the computer program instructions cause the computer to perform the corresponding steps implemented by the site where the second cell is located in the various methods of the embodiment of the present application. The process, for the sake of brevity, will not be repeated here.

An embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the site where the first cell is located in the embodiment of the present application. When the computer program is run on the computer, it causes the computer to execute the methods of the first cell in the embodiment of the present application. The corresponding process of site implementation will not be described here for the sake of simplicity.

Optionally, the computer program can be applied to the site where the second cell is located in the embodiment of the present application. When the computer program is run on the computer, it causes the computer to execute the methods of the second cell in the embodiment of the present application. The corresponding process of site implementation will not be described here for the sake of brevity.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

A communication method, applied to the first cell in a converged networking architecture, the converged networking architecture also includes a second cell; the first cell has a first protocol stack, and the second cell has a second protocol stack , the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located on the second protocol stack; the method includes:

The first cell sends first data to the second cell, the first data is sent to the terminal device by the second cell, and the first data passes the first protocol on the first cell side. The first data is processed by the second protocol stack on the second cell side; and/or,

The first cell receives the second data sent by the second cell, the second data is sent to the second cell by the terminal equipment, and the second data passes through the second cell on the second cell side. The second protocol stack performs processing, and the second data is processed on the first cell side through the first protocol stack.
The method of claim 1, wherein,

The site where the first cell is located is different from the site where the second cell is located; or,

The site where the first cell is located is the same as the site where the second cell is located.
The method according to claim 2, wherein when the site where the first cell is located is different from the site where the second cell is located, the first cell is located at the first site, and the second cell is located at the second site. Two sites;

The link between the first site and the second site is an ideal backhaul link; or,

The link between the first site and the second site is a non-ideal backhaul link.
The method according to any one of claims 1 to 3, wherein the link between the first site where the first cell is located and the second site where the second cell is located is an ideal backhaul link, Or when the site where the first cell is located is the same as the site where the second cell is located,

The first protocol stack includes at least one of the following: Service Data Adaptation Protocol SDAP entity, Packet Data Convergence Protocol PDCP entity, Radio Link Control RLC entity, Media Access Control MAC entity, and the second protocol stack includes a physical PHY entity; or,

The first protocol stack includes at least one of the following: SDAP entity, target entity, and MAC entity. The second protocol stack includes a PHY entity. The target entity has at least part of the functions of the PDCP entity and/or the RLC entity.
The method of claim 4, wherein,

The first data sent by the first cell to the second cell is carried in a downlink MAC packet data unit PDU; and/or,

The second data sent by the second cell to the first cell is carried in the uplink MAC PDU.
The method according to claim 4 or 5, wherein the second station or the second cell supports at least one of the first operation, the second operation, the third operation, the fourth operation and the fifth operation;

The first operation includes at least one operation: sending a downlink data channel and receiving an uplink data channel;

The second operation includes the following operations: receiving an uplink reference signal;

The third operation includes at least one of the following operations: sending a downlink control channel and receiving an uplink control channel;

The fourth operation includes the following operations: receiving a report reported by the terminal device;

The fifth operation includes the following operation: sending a first MAC control element CE, where the first MAC CE is used to activate and/or deactivate the secondary cell Scell on the second site side.
The method according to claim 4 or 5, wherein the second station or the second cell supports the first operation and/or the second operation, and does not support the third operation, the fourth operation and the fifth operation. at least one of;

The first operation includes at least one operation: sending a downlink data channel and receiving an uplink data channel;

The second operation includes the following operations: receiving an uplink reference signal;

The third operation includes at least one of the following operations: sending a downlink control channel and receiving an uplink control channel;

The fourth operation includes the following operations: receiving a report reported by the terminal device;

The fifth operation includes the following operation: sending a first MAC CE, which is used to activate and/or deactivate the Scell on the second site side.
The method according to claim 6 or 7, wherein the downlink control channel is used to carry at least one of the following:

Scheduling information for downlink data channels;

Scheduling information for the uplink data channel.
The method according to any one of claims 6 to 8, wherein the uplink control channel is used to carry the following information:

Hybrid automatic repeat request HARQ feedback information corresponding to the downlink data channel.
The method according to any one of claims 6 to 9, wherein the report includes at least one of the following: a channel state information CSI report and a power headroom report (PHR report).
The method according to any one of claims 7 to 10, wherein when the second station or the second cell does not support sending a downlink control channel, the method further includes:

The first station or the first cell sends first downlink control information DCI to the terminal device, the first DCI carries first scheduling information, and the first scheduling information is used to schedule downlink of the second cell. data channel and/or uplink data channel.
The method of claim 11, wherein the first scheduling information includes first information used to indicate the scheduled second cell.
The method according to claim 12, wherein the first information includes identification information of the second site and identification information of the second cell, and the identification information of the second cell is not unique among sites.
The method according to claim 12, wherein the first information includes identification information of the second cell, and the identification information of the second cell has a unique number among sites.
The method according to claim 13 or 14, wherein the identification information of the second cell includes at least one of the following: serving cell index, secondary cell index, and carrier index.
The method according to any one of claims 7 to 15, wherein when the second site or the second cell does not support receiving reports reported by terminal equipment, the method further includes:

The first station or the first cell sends first radio resource control RRC signaling to the terminal device, the first RRC signaling carries first configuration information, and the first configuration information is used to indicate to the terminal device Report the report of the second cell through the first cell.
The method of claim 16, wherein the first configuration information includes second information, and the second information is used to indicate the second cell.
The method of claim 17, wherein the second information includes identification information of the second site and identification information of the second cell, and the identification information of the second cell is not uniquely numbered among sites. .
The method according to claim 17, wherein the second information includes identification information of the second cell, and the identification information of the second cell has a unique number among sites.
The method according to claim 18 or 19, wherein the identification information of the second cell includes at least one of the following: a serving cell index and a secondary cell index.
The method according to any one of claims 7 to 20, wherein when the second station or the second cell does not support receiving an uplink control channel, the method further includes:

The first station or the first cell receives an uplink control channel sent by a terminal device, and the uplink control channel carries HARQ feedback information on the second station or the second cell side.
The method according to claim 21, wherein the uplink control channel also carries HARQ feedback information of the first station or the first cell side.
The method according to claim 22, wherein the HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are jointly encoded.
The method according to claim 23, wherein the joint encoding method includes at least one of the following:

Jointly encoding the HARQ feedback information of the second site or the second cell side and the HARQ feedback information of the first site or the first cell side according to predefined rules;

The HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are jointly encoded according to instructions from the network side.
The method according to claim 21, wherein the HARQ feedback information of the second station or the second cell side and the HARQ feedback information of the first station or the first cell side are independently encoded.
The method according to claim 21 or 25, wherein the method further comprises:

The first station or the first cell sends second RRC signaling to the terminal device, the second RRC signaling carries second configuration information, and the second configuration information is used to indicate the first uplink control channel resource, the first uplink control channel resource is an uplink control channel resource dedicated to transmitting HARQ feedback information on the second station or the second cell side.
The method according to any one of claims 1 to 3, wherein the link between the first site where the first cell is located and the second site where the second cell is located is a non-ideal backhaul link in the case of,

The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and first MAC entity, and the second protocol stack includes a second MAC entity and a PHY entity; or,

The first protocol stack includes at least one of the following: SDAP entity, target entity, and first MAC entity. The second protocol stack includes a second MAC entity and a PHY entity. The target entity has a PDCP entity and/or an RLC entity. at least some of its functions.
The method of claim 27, wherein:

The first data sent by the first cell to the second cell is carried in downlink RLC PDU; and/or,

The second data sent by the second cell to the first cell is carried in the uplink RLC PDU.
The method according to claim 27 or 28, wherein a logical channel level connection is established between the first station and the second station, and the connection is used for the first station and the second station. Uplink RLC PDU and/or downlink RLC PDU are transmitted between.
The method according to claim 29, wherein the connection is a GTP tunnel or an HTTP channel.
The method according to any one of claims 1 to 30, wherein the frequency point of the first cell is lower than the frequency point of the second cell.
A communication method is applied to a second cell in a converged networking architecture, wherein the converged networking architecture further includes a first cell; the first cell has a first protocol stack, the second cell has a second protocol stack, the second protocol stack is a transmission-related protocol stack, and the first protocol stack is located above the second protocol stack; the method includes:

The second cell receives the first data sent by the first cell, sends the first data to the terminal device, and the first data is processed on the first cell side through the first protocol stack, The first data is processed through the second protocol stack on the second cell side; and/or,

The second cell receives the second data sent by the terminal device, sends the second data to the first cell, and the second data is processed on the second cell side through the second protocol stack, The second data is processed on the first cell side through the first protocol stack.
The method of claim 32, wherein:

The site where the first cell is located is different from the site where the second cell is located; or,

The site where the first cell is located is the same as the site where the second cell is located.
The method according to claim 33, wherein when the site where the first cell is located is different from the site where the second cell is located, the first cell is located at the first site and the second cell is located at the second site. Two sites;

The link between the first site and the second site is an ideal backhaul link; or,

The link between the first site and the second site is a non-ideal backhaul link.
The method according to any one of claims 32 to 34, wherein the link between the first site where the first cell is located and the second site where the second cell is located is an ideal backhaul link, Or when the site where the first cell is located is the same as the site where the second cell is located,

The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and MAC entity, and the second protocol stack includes a PHY entity; or,

The first protocol stack includes at least one of the following: SDAP entity, target entity, and MAC entity. The second protocol stack includes a PHY entity. The target entity has at least part of the functions of the PDCP entity and/or the RLC entity.
The method of claim 35, wherein:

The first data sent by the first cell to the second cell is carried in the downlink MAC PDU; and/or,

The second data sent by the second cell to the first cell is carried in the uplink MAC PDU.
The method according to claim 35 or 36, wherein the second station or the second cell supports at least one of the first operation, the second operation, the third operation, the fourth operation and the fifth operation;

The first operation includes at least one operation: sending a downlink data channel and receiving an uplink data channel;

The second operation includes the following operations: receiving an uplink reference signal;

The third operation includes at least one of the following operations: sending a downlink control channel and receiving an uplink control channel;

The fourth operation includes the following operations: receiving a report reported by the terminal device;

The fifth operation includes the following operation: sending a first MAC CE, which is used to activate and/or deactivate the Scell on the second site side.
The method according to claim 35 or 36, wherein the second station or the second cell supports the first operation and/or the second operation, and does not support the third operation, the fourth operation and the fifth operation. at least one of;

The first operation includes at least one operation: sending a downlink data channel and receiving an uplink data channel;

The second operation includes the following operations: receiving an uplink reference signal;

The third operation includes at least one of the following operations: sending a downlink control channel and receiving an uplink control channel;

The fourth operation includes the following operations: receiving a report reported by the terminal device;

The fifth operation includes the following operation: sending a first MAC CE, which is used to activate and/or deactivate the Scell on the second site side.
The method according to claim 37 or 38, wherein the downlink control channel is used to carry at least one of the following:

Scheduling information for downlink data channels;

Scheduling information for the uplink data channel.
The method according to any one of claims 37 to 39, wherein the uplink control channel is used to carry the following information:

HARQ feedback information corresponding to the downlink data channel.
The method according to any one of claims 37 to 40, wherein the report includes at least one of the following: CSI report, PHR report.
The method according to any one of claims 32 to 34, wherein the link between the first site where the first cell is located and the second site where the second cell is located is a non-ideal backhaul link in the case of,

The first protocol stack includes at least one of the following: SDAP entity, PDCP entity, RLC entity, and first MAC entity, and the second protocol stack includes a second MAC entity and a PHY entity; or,

The first protocol stack includes at least one of the following: SDAP entity, target entity, and first MAC entity. The second protocol stack includes a second MAC entity and a PHY entity. The target entity has a PDCP entity and/or an RLC entity. at least some of its functions.
The method of claim 42, wherein:

The first data sent by the first cell to the second cell is carried in downlink RLC PDU; and/or,

The second data sent by the second cell to the first cell is carried in the uplink RLC PDU.
The method according to claim 42 or 43, wherein a logical channel level connection is established between the first station and the second station, and the connection is used for the first station and the second station. Uplink RLC PDU and/or downlink RLC PDU are transmitted between.
The method of claim 44, wherein the connection is a GTP tunnel or an HTTP channel.
The method according to any one of claims 32 to 45, wherein the frequency point of the first cell is lower than the frequency point of the second cell.
A converged networking architecture, the converged networking architecture includes a first cell and at least one second cell, the first cell is used to perform the method according to any one of claims 1 to 31, and the third cell The second cell is used to perform the method as claimed in any one of claims 32 to 46.
A communication device applied to a first cell in a converged networking architecture. The converged networking architecture also includes a second cell; the first cell has a first protocol stack, and the second cell has a second protocol stack. , the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located on the second protocol stack; the device includes: a communication unit and a processing unit;

The communication unit is used to send first data to the second cell, and the first data is sent to the terminal device by the second cell; the processing unit is used to process the first data through the first protocol stack. The first data is processed; the first data is processed on the second cell side through the second protocol stack; and/or,

The communication unit is used to receive the second data sent by the second cell, and the second data is sent to the second cell by the terminal device; the processing unit is used to pass the first protocol The stack processes the second data; the second data is processed on the second cell side through the second protocol stack.
A communication device applied to a second cell in a converged networking architecture. The converged networking architecture further includes a first cell; the first cell has a first protocol stack, and the second cell has a second protocol stack. , the second protocol stack is a protocol stack related to transmission, and the first protocol stack is located on the second protocol stack; the device includes: a communication unit and a processing unit;

The communication unit is used to receive the first data sent by the first cell and send the first data to the terminal device; the processing unit is used to process the first data through the second protocol stack. Processing is performed, and the first data is processed through the first protocol stack on the first cell side; and/or,

The communication unit is used to receive the second data sent by the terminal device and send the second data to the first cell; the processing unit is used to process the second data through the second protocol stack. Processing is performed, and the second data is processed through the first protocol stack on the first cell side.
A communication device, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute as described in any one of claims 1 to 31 The method, or the method according to any one of claims 32 to 46.
A chip, including: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 31, or claims 32 to 46 any one of the methods.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the method according to any one of claims 1 to 31, or the method according to any one of claims 32 to 46 .
A computer program product comprising computer program instructions that cause a computer to perform the method according to any one of claims 1 to 31, or the method according to any one of claims 32 to 46.
A computer program that causes a computer to perform the method according to any one of claims 1 to 31, or the method according to any one of claims 32 to 46.