CN114071608A - Information transmission method and device - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0009—Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Abstract
The invention provides an information transmission method and an information transmission device, which solve the problem that no specific flow for inter-CU switching by an IAB (inter-Integrated Circuit) node exists in the prior art. The information transmission method of the invention comprises the following steps: sending first information to a first concentration unit to which the IAB node is handed over, the first information comprising at least one of: node information of the IAB node; node information of a parent node of the IAB node; node information of child nodes of the IAB node; information of terminals served by the IAB node. The first centralized unit of the invention can obtain the topological structures of the IAB node and the descendant nodes thereof through the first information, and further carry out related configuration on the IAB node and the descendant nodes thereof, thereby realizing the specific flow of inter-CU switching of the IAB node.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information transmission method and apparatus.
Background
The IAB (Integrated Access and Backhaul) network technology achieves the purpose of expanding the coverage area of the base station by relaying wireless signals among a plurality of nodes. The method is a network networking mode for solving the problem of base station coverage in the future 5G.
In the existing IAB network topology, one IAB node (IAB node) is composed of two parts, one part is a DU part in an IAB MT (IAB Mobile Termination) pair connected to a base station or an IAB node, and the base station or the IAB node is called its parent node; the other part is an MT part of an IAB DU (IAB Distributed Unit) to which a UE (User Equipment) or an IAB node is connected downward, and the UE or the IAB MT node is called a child node thereof.
With the further development of IAB technology, IAB nodes are also mobile, for example, IAB nodes are installed on cars or trains. As the IAB node moves, the IAB node may handover from one element in the source set to another element in the target set. When inter-CU handover between the centralized units occurs, the descendant nodes or UEs connected by the IAB node also need to be handed over to the target centralized unit together. However, at present, the target concentration unit cannot perform relevant configuration for the IAB node and its descendant nodes, so there is no specific flow for the IAB node to perform inter-CU handover.
Disclosure of Invention
The invention aims to provide an information transmission method, an information configuration method and an information configuration device, which are used for solving the problem that no specific flow for inter-CU switching is performed by an IAB (inter-Integrated node B) in the prior art.
In order to achieve the above object, an embodiment of the present invention provides an information transmission method applied to an integrated access backhaul IAB node, including:
sending first information to a first concentration unit to which the IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Wherein the information of the terminal served by the IAB node comprises at least one of the following:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Wherein the sending the first information to the first concentration unit to which the IAB node is handed over includes:
sending the first information to the first centralized unit through F1 interface signaling and/or Radio Resource Control (RRC) signaling.
Wherein the sending the first information to the first concentration unit to which the IAB node is handed over includes:
and sending the first information to a parent node of the IAB node, and sending the first information to the first centralized unit in a mode of forwarding the first information step by the node.
Wherein the sending the first information to the first concentration unit to which the IAB node is handed over includes:
in the process of switching to a first concentration unit, sending first information to the first concentration unit;
alternatively, the first and second electrodes may be,
and after the switching to the first centralizing unit is completed, sending first information to the first centralizing unit.
In order to achieve the above object, an embodiment of the present invention further provides an information transmission method applied to a central unit, where the central unit is a first central unit, and the method includes:
receiving first information sent by at least one IAB node;
sending configuration information to the IAB node according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Wherein the sending configuration information to the IAB node according to the first information includes:
determining connection relation information or topological structure information of each IAB node according to the first information;
and sending configuration information to the IAB node according to the connection relation information or the topological structure information.
Wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Wherein the information of the terminal served by the IAB node comprises at least one of the following:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Wherein the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
Wherein the BAP configuration information comprises routing configuration information and backhaul radio link control channel mapping configuration information.
In order to achieve the above object, an embodiment of the present invention further provides an information transmission apparatus, including: memory, transceiver, processor: a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory, the transceiver for performing the following:
sending first information to a first concentration unit to which an IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Wherein the information of the terminal served by the IAB node comprises at least one of the following:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Wherein the transceiver is specifically configured to:
sending the first information to the first centralized unit through F1 interface signaling and/or Radio Resource Control (RRC) signaling.
Wherein the transceiver is specifically configured to:
and sending the first information to a parent node of the IAB node, and sending the first information to the first centralized unit in a mode of forwarding the first information step by the node.
Wherein the transceiver is specifically configured to:
in the process of switching to a first concentration unit, sending first information to the first concentration unit;
alternatively, the first and second electrodes may be,
and after the switching to the first centralizing unit is completed, sending first information to the first centralizing unit.
In order to achieve the above object, an embodiment of the present invention further provides an information transmission apparatus, including:
a first sending module, configured to send first information to a first concentration unit to which an IAB node is handed over, where the first information includes at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
In order to achieve the above object, an embodiment of the present invention further provides an information transmission apparatus, including: memory, transceiver, processor: a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving, by a transceiver, first information transmitted by at least one IAB node;
sending configuration information to the IAB node through a transceiver according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Wherein the processor is specifically configured to:
determining connection relation information or topological structure information of each IAB node according to the first information;
and sending configuration information to the IAB node through the transceiver according to the connection relation information or the topological structure information.
Wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Wherein the information of the terminal served by the IAB node comprises at least one of the following:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Wherein the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
Wherein the BAP configuration information comprises routing configuration information and backhaul radio link control channel mapping configuration information.
In order to achieve the above object, an embodiment of the present invention further provides an information transmission apparatus, including:
the receiving module receives first information sent by at least one IAB node;
a second sending module, configured to send configuration information to the IAB node according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
In order to achieve the above object, an embodiment of the present invention further provides a processor-readable storage medium, which stores a computer program for causing a processor to execute the steps of the information transmission method as described above.
The technical scheme of the invention at least has the following beneficial effects:
in the above technical solution of the embodiment of the present invention, first information is sent to a first central unit to which an IAB node is handed over, where the first information includes at least one of the following: node information of the IAB node; node information of a parent node of the IAB node; node information of a child node of the IAB node; and the information of the terminal served by the IAB node, so that the first centralized unit can obtain the topological structures of the IAB node and the descendant nodes thereof through the first information, and further perform related configuration on the IAB node and the descendant nodes thereof, thereby realizing the specific flow of inter-CU switching of the IAB node.
Drawings
Fig. 1 is a schematic diagram of a conventional IAB network topology;
fig. 2 is a flowchart illustrating an information transmission method according to an embodiment of the present invention;
fig. 3 is a second schematic flow chart of an information transmission method according to an embodiment of the present invention;
fig. 4 is a third schematic flow chart of an information transmission method according to an embodiment of the present invention;
FIG. 5 is a block diagram of an information transmission apparatus according to an embodiment of the present invention;
FIG. 6 is a block diagram of an information transmission apparatus according to an embodiment of the present invention;
FIG. 7 is a second block diagram of an information transmission apparatus according to an embodiment of the present invention;
fig. 8 is a second block diagram of an information transmission apparatus according to an embodiment of the invention.
Detailed Description
The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the method of the present invention is applicable to an IAB network. For ease of understanding, the network is described in detail below in conjunction with fig. 1.
Fig. 1 is an IAB network topology diagram, and in an IAB network deployment, an IAB donor (an IAB host node or a central control node), an IAB node and a UE are included. The IAB donor is used for connecting the core network, returning the information of the IAB node and the UE to the core network and transmitting the information of the core network to the IAB node and the UE. The IAB donor is also responsible for managing IAB nodes throughout the IAB network.
The IAB node is responsible for relaying and transmitting information of the UE to the IAB donor and relaying and transmitting information of the IAB donor to the UE through a radio link (Uu interface). The IAB nodes and the IAB donor are connected through wireless links, namely Uu interfaces.
The relay function of the IAB node is implemented by a BAP layer (Backhaul attachment Protocol layer) in the IAB node.
In fig. 1, IAB node1 is a parent node of IAB node2, IAB node3 is a child node of IAB node2, and IAB node3 is a descendant node of IAB node 1.
It should be noted that, specifically, the IAB node handover refers to a handover of an IAB node from a source parent node to a target parent node. IAB node handover involves two handover scenarios. Firstly, the IAB node is switched from a source parent node to a target parent node, but the connected donor CU is not changed, only the donor DU different from the lower side of the donor CU is changed, and the switching is intra-CU switching; in the intra-CU switching process of the IAB, the donor CU is not switched, so that the donor CU always knows the topological structures of the IAB and the descendant nodes thereof.
And the other is that the IAB node is switched from the source parent node to the target parent node, the connected donor CU is changed, namely the source donor CU is switched to the target donor CU, and the switching is inter-CU switching. In the process of inter-CU handover by the IAB, the Donor CU is handed over, but the target Donor CU does not know the connection relation, namely the topological structure, of the IAB and the descendant nodes or the UE, so that the target Donor CU cannot perform relevant configuration, such as routing information configuration, on the IAB and the descendant nodes thereof, and the specific flow of inter-CU handover by the IAB cannot be realized.
In order to solve the above problem, embodiments of the present invention provide an information transmission method and apparatus. The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.
As shown in fig. 2, a schematic flow chart of an information transmission method provided in an embodiment of the present invention is applied to an integrated access backhaul IAB node, and includes:
step 201: sending first information to a first concentration unit to which the IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
The applicable switching scenario of the embodiment is inter-CU switching, that is, switching of the IAB node from the source concentration unit to the target concentration unit. Here, the first concentration unit may be understood as a target concentration unit, i.e. a target donor CU.
Here, an IAB node generally refers to any one of IAB nodes in an IAB network. For example, the IAB node is the first IAB node, and may also be a descendant IAB node of the first IAB node.
It should be noted that each IAB node may obtain information of its connected parent node or its connected child node, but may not obtain information of its parent node or its child node, and therefore each IAB node needs to report node information of its connected parent node or its connected child node, so that the first concentration unit may obtain topology structure information of all nodes after receiving information reported by all IAB nodes.
This information reporting is optional since not every IAB node is necessarily connected to either the parent or child node.
In addition, the information of the terminal served by each IAB node also needs to be reported to the first centralized unit, so that the first centralized unit can know the information of the specific terminal served by each IAB node. However, not every IAB node has a terminal to serve, so this information reporting is optional.
It should be noted that, optionally, the first reported information further includes node information of the IAB node itself, so that the first centralized unit knows which node sends the information.
In the information transmission method according to the embodiment of the present invention, first information is sent to a first central unit to which an IAB node is handed over, where the first information includes at least one of: node information of the IAB node; node information of a parent node of the IAB node; node information of a child node of the IAB node; and the information of the terminal served by the IAB node, so that the first centralized unit can obtain the topological structures of the IAB node and the descendant nodes thereof through the first information, and further perform related configuration on the IAB node and the descendant nodes thereof, thereby realizing the specific flow of inter-CU switching of the IAB node.
Optionally, the node information includes at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
For example, since the DU of the parent node connects to the MT of its child node in the IAB topology, the parent node may only obtain MT information of the child node, and the child node may only obtain DU information of the parent node. Therefore, the node information of the parent node may be PCI (Physical Cell Identity), CGI (Global Cell ID), BAP address information of the IAB node, or IP address information of the IAB DU; the reported information of the child node can be BAP address information of the IAB node or IP address information of the IAB MT.
Optionally, the information of the terminal served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
As an optional implementation manner, the method step 201 of the embodiment of the present invention may include:
sending the first information to the first centralized unit through F1 interface signaling and/or Radio Resource Control (RRC) signaling.
It should be noted that, the IAB node may send all information of the first information to the first centralized unit through signaling of the F1 interface; or, all the information of the first information may be sent to the first centralized unit through RRC signaling; alternatively, a part of the first information may be signaled to the first central unit through the F1 interface, and another part of the first information may be signaled to the first central unit through RRC signaling. For example, the node information of the parent node of the IAB node is sent through the F1 interface signaling, and the node information of the child node of the IAB node is sent through the RRC signaling; alternatively, the node information of the child node of the IAB node is signaled through the F1 interface, and the node information of the parent node of the IAB node is signaled through RRC.
As an optional implementation manner, the method step 201 of the embodiment of the present invention may include:
and sending the first information to a parent node of the IAB node, and sending the first information to the first centralized unit in a mode of forwarding the first information step by the node.
That is, each IAB node forwards the first information to its parent node, which forwards it to its parent node, and so on, and the transmission is performed at one level and one level until it is transmitted to the first centralized unit.
As an optional implementation manner, the method step 201 of the embodiment of the present invention may specifically include:
in the process of switching to a first concentration unit, sending first information to the first concentration unit;
alternatively, the first and second electrodes may be,
and after the switching to the first centralizing unit is completed, sending first information to the first centralizing unit.
It should be noted that, after initiating a handover request to the IAB node from the unit in the source set or after sending a handover instruction to the unit in the source set, the cell belongs to the handover process until both ends of the first centralized unit and the IAB node complete the handover procedure.
Here, in the process of switching to the first concentration unit, the first information may be sent to the first concentration unit through F1 interface signaling and/or RRC signaling in the switching process;
or;
after the switching to the first centralized unit is completed, the first information can be sent to the first centralized unit through F1 interface signaling and/or RRC signaling in the switching process;
in the information transmission method according to the embodiment of the present invention, first information is sent to a first central unit to which an IAB node is handed over, where the first information includes at least one of: node information of the IAB node; node information of a parent node of the IAB node; node information of a child node of the IAB node; and the information of the terminal served by the IAB node, so that the first centralized unit can obtain the topological structures of the IAB node and the descendant nodes thereof through the first information, and further perform related configuration on the IAB node and the descendant nodes thereof, thereby realizing the specific flow of inter-CU switching of the IAB node.
As shown in fig. 3, a schematic flow chart of the information transmission method provided in the embodiment of the present invention is applied to a central unit, where the central unit is a first central unit, and includes:
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
It should be noted that, the first centralized unit obtains the first information sent by each IAB node, and the first information can reflect the connection relationship between the IAB node and other nodes.
Here, an IAB node generally refers to any one of IAB nodes in an IAB network. For example, the IAB node is the first IAB node, and may also be a descendant IAB node of the first IAB node.
The information transmission method of the embodiment of the invention receives first information sent by at least one IAB node; and sending configuration information to the IAB node according to the first information, so that the connection relationship, namely the topological structure, of the IAB node and the descendant nodes thereof or the UE can be obtained through the first information first centralized unit, and the configuration information is sent to the IAB node for the relative configuration of the IAB node and the descendant nodes thereof so as to realize the specific flow of inter-CU switching of the IAB node.
As an optional implementation, the method step 302 in this embodiment of the present invention may include:
determining connection relation information or topological structure information of each IAB node according to the first information;
here, the topology information is actually connection relationship information between each IAB node.
And sending configuration information to the IAB node according to the connection relation information or the topological structure information.
Here, the first centralized unit may perform relevant configuration for each IAB node according to the connection relationship information or the topology information, and then send the configured configuration information to the corresponding IAB node.
Optionally, the node information includes at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
For example, since the DU of the parent node connects to the MT of its child node in the IAB topology, the parent node may only obtain MT information of the child node, and the child node may only obtain DU information of the parent node. Therefore, the node information of the parent node may be PCI (Physical Cell Identity), CGI (Global Cell ID), BAP address information of the IAB node, or IP address information of the IAB DU; the reported information of the child node can be BAP address information of the IAB node or IP address information of the IAB MT.
Optionally, the information of the terminal served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Optionally, the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
Optionally, the BAP configuration information includes routing configuration information and backhaul radio link control channel mapping configuration information.
Here, the routing configuration information includes: a path identification ID, and/or address information of a next hop transmission node.
It should be noted that the address information of the next hop transport node is used to indicate to which IAB node the data packet should be sent. Wherein different packets may be destined for different IAB nodes. Therefore, the routing configuration information needs to be configured according to the connection relation information or the topology structure information of the IAB node.
The backhaul radio link control channel mapping (backhaul RLC channel mapping) configuration information includes: a Radio Link Control (RLC) channel received by the IAB node and an RLC channel sent by the IAB node.
For example, for downlink data, the IAB node receives data from the parent node through the RLC channel1, and according to the configured correspondence, the IAB node sends the data to its child node through the RLC channel 2. Therefore, backhaul RLC channel mapping configuration information needs to be configured according to the connection relationship information or the topology structure information of the IAB node.
The information transmission method of the embodiment of the invention receives first information sent by at least one IAB node; and sending configuration information to the IAB node according to the first information, so that the connection relationship, namely the topological structure, of the IAB node and the descendant nodes thereof or the UE can be obtained through the first information first centralized unit, and the configuration information is sent to the IAB node for the relative configuration of the IAB node and the descendant nodes thereof so as to realize the specific flow of inter-CU switching of the IAB node.
The following describes an example of the implementation of the information transmission method according to the present invention in terms of interaction between the centralized unit and the IAB node.
Fig. 4 is a third schematic flow chart of the information transmission method according to the embodiment of the present invention. Wherein the figure corresponds to an inter-CU switching scene.
Among them, IAB node1 switches from the source donor CU to the target donor CU. Wherein, IAB node2 is a child node of IAB node1, IAB node3 is a child node of IAB node2, and UE1 is a terminal served by IAB node 3. Since the IAB node1 has been handed over, both its descendant node and the served terminal need to be handed over to the target donor CU.
S1: in the process of switching to a target donor CU or after the switching is completed, the IAB node sends first information to the target donor CU;
specifically, the IAB node sends the first information to the target donor CU through F1 interface signaling and/or RRC signaling.
In this example, the IAB nodes include IAB node1, IAB node2, and IAB node 3.
Specifically, the IAB node1 sends information of its child node IAB node2 to the target donor CU;
the IAB node2 sends the node information of the sub-node IAB node3 to the target donor CU; or sending node information of the parent node IAB node1 and the child node IAB node 3;
the IAB node3 sends information of its served terminal UE1 to the target donor CU; or to send information of its parent node IAB node2 and its served terminal UE 1.
Optionally, the first information sent by each IAB node to the target donor CU further includes information of the IAB node itself.
Here, the specific content included in the first information has already been explained in the embodiments shown in fig. 2 and fig. 3, and is not described here again.
S2: the target donor CU receives first information sent by the IAB node and configures the IAB node;
here, in this example, the target donor CU receives the respective corresponding first information transmitted by IAB node1, IAB node2, and IAB node3, respectively. Specifically, IAB node1, IAB node2, and IAB node3 were configured.
S3: and the target donor CU sends the configuration information of the IAB node1 to the IAB node1, sends the configuration information of the IAB node2 to the IAB node2 and sends the configuration information of the IAB node3 to the IAB node 3.
It should be noted that specific contents included in the configuration information have been described in the embodiment shown in fig. 3, and are not described herein again.
As shown in fig. 5, an embodiment of the present invention further provides an information transmission apparatus, including: memory 520, transceiver 500, processor 510: a memory 520 for storing a computer program; a transceiver 500 for transceiving data under the control of the processor 510; a processor 510 for reading the computer program in the memory 520, the transceiver 500 performing the following operations:
sending first information to a first concentration unit to which an IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 510, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 500 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 510 in performing operations.
The processor 510 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.
Optionally, the node information includes at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Optionally, the information of the terminal served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Optionally, the transceiver 500 is specifically configured to:
sending the first information to the first centralized unit through F1 interface signaling and/or Radio Resource Control (RRC) signaling.
Optionally, the transceiver 500 is specifically configured to:
and sending the first information to a parent node of the IAB node, and sending the first information to the first centralized unit in a mode of forwarding the first information step by the node.
Optionally, the transceiver 500 is specifically configured to:
in the process of switching to a first concentration unit, sending first information to the first concentration unit;
alternatively, the first and second electrodes may be,
and after the switching to the first centralizing unit is completed, sending first information to the first centralizing unit.
The information transmission apparatus according to the embodiment of the present invention transmits, to a first central unit to which an IAB node is handed over, first information including at least one of: node information of the IAB node; node information of a parent node of the IAB node; node information of a child node of the IAB node; and the information of the terminal served by the IAB node, so that the first centralized unit can obtain the topological structures of the IAB node and the descendant nodes thereof through the first information, and further perform related configuration on the IAB node and the descendant nodes thereof, thereby realizing the specific flow of inter-CU switching of the IAB node.
It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
As shown in fig. 6, an embodiment of the present invention further provides an information transmission apparatus, including:
a first sending module 601, configured to send first information to a first concentration unit to which an IAB node is handed over, where the first information includes at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Optionally, the node information includes at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Optionally, the information of the terminal served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Optionally, the first sending module 601 includes:
a first sending unit, configured to send the first information to the first concentrating unit through an F1 interface signaling and/or a radio resource control RRC signaling.
Optionally, the first sending module 601 includes:
and the second sending unit is used for sending the first information to a parent node of the IAB node and sending the first information to the first concentration unit in a mode of forwarding the first information step by step through the node.
Optionally, the first sending module 601 includes:
a third sending unit, configured to send the first information to the first concentrating unit in a process of switching to the first concentrating unit;
alternatively, the first and second electrodes may be,
and the fourth sending unit is used for sending the first information to the first concentration unit after the switching to the first concentration unit is completed.
In the information transmission apparatus according to the embodiment of the present invention, the first sending module sends the first information to the first concentration unit to which the IAB node is handed over, where the first information includes at least one of: node information of the IAB node; node information of a parent node of the IAB node; node information of a child node of the IAB node; and the information of the terminal served by the IAB node, so that the first centralized unit can obtain the topological structures of the IAB node and the descendant nodes thereof through the first information, and further perform related configuration on the IAB node and the descendant nodes thereof, thereby realizing the specific flow of inter-CU switching of the IAB node.
It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
In some embodiments of the invention, there is also provided a processor-readable storage medium having stored thereon a computer program for causing a processor to execute steps to:
sending first information to a first concentration unit to which the IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
When executed by the processor, the program can implement all the implementation manners in the embodiment of the method applied to the IAB node side shown in fig. 2, and details are not described here for avoiding repetition.
As shown in fig. 7, the embodiment of the present invention further provides an information transmission apparatus, wherein the memory 720, the transceiver 700, the processor 710: a memory 720 for storing a computer program; a transceiver 700 for transceiving data under the control of the processor 710; a processor 710 for reading the computer program in the memory 720 and performing the following operations:
receiving, by the transceiver 700, first information transmitted by at least one IAB node;
transmitting configuration information to the IAB node through the transceiver 700 according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Wherein in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 710, and various circuits, represented by memory 720, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 700 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 in performing operations.
The processor 710 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.
Optionally, the processor 710 is specifically configured to:
determining connection relation information or topological structure information of each IAB node according to the first information;
and sending configuration information to the IAB node through the transceiver according to the connection relation information or the topological structure information.
Optionally, the node information includes at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Optionally, the information of the terminal served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Optionally, the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
Optionally, the BAP configuration information includes routing configuration information and backhaul radio link control channel mapping configuration information.
The information transmission device of the embodiment of the invention receives first information sent by at least one IAB node; and sending configuration information to the IAB node according to the first information, so that the connection relationship, namely the topological structure, of the IAB node and the descendant nodes thereof or the UE can be obtained through the first information first centralized unit, and the configuration information is sent to the IAB node for the relative configuration of the IAB node and the descendant nodes thereof so as to realize the specific flow of inter-CU switching of the IAB node.
It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
As shown in fig. 8, the present invention also provides an information transmission apparatus, including:
a receiving module 801, configured to receive first information sent by at least one IAB node;
a second sending module 802, configured to send configuration information to the IAB node according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
Optionally, the second sending module 802 includes:
an information determining unit, configured to determine connection relationship information or topology structure information of each IAB node according to the first information;
a fifth sending unit, configured to send configuration information to the IAB node according to the connection relationship information or the topology information.
Optionally, the node information includes at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
Optionally, the information of the terminal served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
Optionally, the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
Optionally, the BAP configuration information includes routing configuration information and backhaul radio link control channel mapping configuration information.
The information transmission device of the embodiment of the invention receives first information sent by at least one IAB node through a receiving module; the second sending module sends the configuration information to the IAB node according to the first information, so that the first centralized unit of the first information can acquire the connection relationship, namely the topological structure, of the IAB node and the descendant nodes thereof or the UE, and relevant configuration is carried out on the IAB node and the descendant nodes thereof and the configuration is sent to the IAB node, so that the specific flow of inter-CU switching of the IAB node is realized.
It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
In some embodiments of the invention, there is also provided a processor-readable storage medium having stored thereon a computer program for causing a processor to execute steps to:
receiving first information sent by at least one IAB node;
sending configuration information to the IAB node according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
When executed by the processor, the program can implement all the implementation manners in the embodiment of the method applied to the centralized unit side shown in fig. 3, and details are not described here for avoiding redundancy.
The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable System may be a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (General Packet Radio Service, GPRS) System, a Long Term Evolution (Long Term Evolution, LTE) System, a LTE Frequency Division Duplex (Frequency Division Duplex, FDD) System, a LTE Time Division Duplex (TDD) System, a Long Term Evolution (Long Term Evolution Access, LTE-a) System, a Universal Mobile Telecommunications System (UMTS), a Universal Mobile telecommunications Access (WiMAX) System, a New Radio network Access (NR 5, WiMAX) System, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.
The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be a evolved Node B (eNB or e-NodeB) in a Long Term Evolution (Long Term Evolution, LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next generation System), may be a Home evolved Node B (Home B, HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, and is not limited in the embodiments of the present application. In some network architectures, network devices may include Centralized Unit (CU) nodes and Distributed Unit (DU) nodes, which may also be geographically separated.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (27)
1. An information transmission method applied to an Integrated Access Backhaul (IAB) node, comprising:
sending first information to a first concentration unit to which the IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
2. The method of claim 1, wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
3. The method of claim 1, wherein the information of the terminals served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
4. The method of claim 1, wherein sending the first information to the first centralized unit to which the IAB node is handed over comprises:
sending the first information to the first centralized unit through F1 interface signaling and/or Radio Resource Control (RRC) signaling.
5. The method of claim 1, wherein sending the first information to the first centralized unit to which the IAB node is handed over comprises:
and sending the first information to a parent node of the IAB node, and sending the first information to the first centralized unit in a mode of forwarding the first information step by the node.
6. The method of claim 1, wherein sending the first information to the first centralized unit to which the IAB node is handed over comprises:
in the process of switching to a first concentration unit, sending first information to the first concentration unit;
alternatively, the first and second electrodes may be,
and after the switching to the first centralizing unit is completed, sending first information to the first centralizing unit.
7. An information transmission method is applied to a central unit, wherein the central unit is a first central unit, and the method comprises the following steps:
receiving first information sent by at least one IAB node;
sending configuration information to the IAB node according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
8. The method of claim 7, wherein sending configuration information to the IAB node according to the first information comprises:
determining connection relation information or topological structure information of each IAB node according to the first information;
and sending configuration information to the IAB node according to the connection relation information or the topological structure information.
9. The method of claim 7, wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
10. The method of claim 7, wherein the information of the terminals served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
11. The method of claim 7, wherein the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
12. The method of claim 11, wherein the BAP configuration information comprises routing configuration information and backhaul radio link control channel mapping configuration information.
13. An information transmission apparatus, comprising: memory, transceiver, processor: a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory, the transceiver for performing the following:
sending first information to a first concentration unit to which an IAB node is handed over, the first information comprising at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
14. The apparatus of claim 13, wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
15. The apparatus of claim 13, wherein the information for the terminals served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
16. The apparatus of claim 13, wherein the transceiver is specifically configured to:
sending the first information to the first centralized unit through F1 interface signaling and/or Radio Resource Control (RRC) signaling.
17. The apparatus of claim 13, wherein the transceiver is specifically configured to:
and sending the first information to a parent node of the IAB node, and sending the first information to the first centralized unit in a mode of forwarding the first information step by the node.
18. The apparatus of claim 13, wherein the transceiver is specifically configured to:
in the process of switching to a first concentration unit, sending first information to the first concentration unit;
alternatively, the first and second electrodes may be,
and after the switching to the first centralizing unit is completed, sending first information to the first centralizing unit.
19. An information transmission apparatus, comprising:
a first sending module, configured to send first information to a first concentration unit to which an IAB node is handed over, where the first information includes at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
20. An information transmission apparatus comprising: memory, transceiver, processor: a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving, by a transceiver, first information transmitted by at least one IAB node;
sending configuration information to the IAB node through a transceiver according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
21. The apparatus of claim 20, wherein the processor is specifically configured to:
determining connection relation information or topological structure information of each IAB node according to the first information;
and sending configuration information to the IAB node through the transceiver according to the connection relation information or the topological structure information.
22. The apparatus of claim 20, wherein the node information comprises at least one of:
a cell identity PCI;
a global cell identity (CGI);
returning adaptive protocol BAP address information;
IP address information of the mobile terminal MT of the IAB node;
IP address information of the distribution unit DU of the IAB node.
23. The apparatus of claim 20, wherein the information for the terminals served by the IAB node comprises at least one of:
a terminal identification;
a cell radio network temporary identifier C-RNTI of the terminal;
IP address information of the terminal.
24. The apparatus of claim 20, wherein the configuration information comprises at least one of:
returning adaptive protocol BAP configuration information;
context information of the mobile terminal MT of the IAB node;
the distribution unit DU context information of the IAB node.
25. The apparatus of claim 24, wherein the BAP configuration information comprises routing configuration information and backhaul radio link control channel mapping configuration information.
26. An information configuring apparatus, comprising:
the receiving module receives first information sent by at least one IAB node;
a second sending module, configured to send configuration information to the IAB node according to the first information;
wherein the first information comprises at least one of:
node information of the IAB node;
node information of a parent node of the IAB node;
node information of child nodes of the IAB node;
information of terminals served by the IAB node.
27. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to execute the steps of the information transmission method of any one of claims 1 to 6 or the steps of the information transmission method of any one of claims 7 to 12.
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Application publication date: 20220218 |