WO2022188705A1 - 信息传输方法、装置及iab节点 - Google Patents

信息传输方法、装置及iab节点 Download PDF

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Publication number
WO2022188705A1
WO2022188705A1 PCT/CN2022/079249 CN2022079249W WO2022188705A1 WO 2022188705 A1 WO2022188705 A1 WO 2022188705A1 CN 2022079249 W CN2022079249 W CN 2022079249W WO 2022188705 A1 WO2022188705 A1 WO 2022188705A1
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pdu
type field
pdu type
extended
indication
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PCT/CN2022/079249
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English (en)
French (fr)
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刘进华
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维沃移动通信有限公司
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Publication of WO2022188705A1 publication Critical patent/WO2022188705A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22Parsing or analysis of headers

Definitions

  • the present application belongs to the field of communication technologies, and in particular, relates to an information transmission method, an apparatus and an IAB node.
  • the backhaul adaptation protocol control protocol data unit (Backhaul Adaptation Protocol control Protocol Data Unit, BAP control PDU) is used to carry the control information of the BAP layer.
  • the header (header) of the BAP control PDU can be as shown in Figure 1, including the information type field (D/C), the PDU type (PDU Type) field and three reserved bits (R), wherein the above D/C
  • the field is used to indicate whether it is a control signal or data
  • the above-mentioned PDU Type field is used to indicate the type of the BAP control PDU.
  • the above-mentioned PDU Type field only includes 4 bits
  • the type of BAP control PDU only includes four types, which are indicated by the four indication values of the PDU Type field respectively.
  • the embodiments of the present application provide an information transmission method, a device, and an IAB node, which can provide a type indication mode of a BAP control PDU when the types of the BAP control PDU increase, so as to support indicating more PDU types.
  • an embodiment of the present application provides an information transmission method, which is performed by a first integrated access backhaul (IAB) node, and the method includes:
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the embodiments of the present application further provide an information transmission method, which is executed by a second IAB node, and the method includes:
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • an information transmission device comprising:
  • a sending module for sending the BAP Control PDU to the second IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • an embodiment of the present application further provides an information transmission device, the device comprising:
  • a receiving module for receiving the BAP Control PDU from the first IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • an embodiment of the present application further provides a first IAB node, where the first IAB node includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, so The steps of the method according to the first aspect are implemented when the program or instructions are executed by the processor.
  • an embodiment of the present application further provides a second IAB node, where the second IAB node includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, so The program or instructions, when executed by the processor, implement the steps of the method according to the second aspect.
  • an embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method according to the first aspect is implemented. steps, or steps for implementing the method according to the second aspect.
  • an embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running a program or an instruction to implement the above-mentioned first step.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used for running a program or an instruction to implement the above-mentioned first step.
  • a computer program product is provided, the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement the method according to the first aspect. steps, or steps for implementing the method according to the second aspect.
  • a tenth aspect provides a communication device configured to perform the steps of the method of the first aspect, or to perform the steps of the method of the second aspect.
  • the header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field
  • the The extended PDU type field is a PDU type field obtained by extending the first PDU type field
  • the first PDU type field supports indicating K PDU types
  • K is a positive integer.
  • Fig. 1 is the schematic diagram of the BAP Control PDU packet header format provided by the related art
  • FIG. 2 is a schematic structural diagram of an IAB system provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a CU-DU of an AB system provided by an embodiment of the present application.
  • FIG. 4 is a structural diagram of a network system to which an embodiment of the present application can be applied;
  • 6a is one of the schematic diagrams of the extended PDU type field provided by the embodiment of the present application.
  • FIG. 6b is the second schematic diagram of the extended PDU type field provided by the embodiment of the present application.
  • FIG. 6c is the third schematic diagram of the extended PDU type field provided by the embodiment of the present application.
  • FIG. 9 is a structural diagram of an information transmission apparatus provided by an embodiment of the present application.
  • FIG. 10 is a structural diagram of another information transmission apparatus provided by an embodiment of the present application.
  • FIG. 11 is a structural diagram of a first IAB node provided by an embodiment of the present application.
  • FIG. 12 is a structural diagram of a second IAB node provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and the claims indicates at least one of the connected objects, and the character “shown generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.
  • IAB Integrated Access Backhaul
  • an IAB node includes a distributed unit (Distributed Unit, DU) functional part and a mobile device (Mobile Termination, MT) functional part. Relying on MT, an access IAB node (ie IAB node) can find an upstream IAB node (ie parent IAB node) and establish a wireless connection with the DU accessing the IAB node, the wireless connection is called backhaul link (ie backhaul link).
  • DU Distributed Unit
  • MT Mobile Termination
  • a self-access backhaul loop also includes a host IAB node (that is, the donor IAB node), and the host IAB node has a directly connected wired transmission network.
  • FIG. 3 is a schematic structural diagram of a central unit-distributed unit (Centralized Unit-Distributed Unit, CU-DU) of an IAB system.
  • CU-DU central unit-distributed unit
  • all DUs of IAB nodes are connected to a CU node, which includes CU control plane (ie CU-CP) and CU user plane (ie CU-UP).
  • the DU is configured through the F1-C or F1-AP (that is, the F1 application protocol) protocol
  • the MT is configured through the Radio Resource Control (Radio Resource Control, RRC) protocol.
  • the host IAB node has no MT functional part.
  • the introduction of the IAB system is aimed at the situation where the wired transmission network is not in place when the access points are densely deployed, that is, when there is no wired transmission network, the access points can rely on wireless backhaul.
  • the BAP control PDU is used to carry the control information of the BAP layer.
  • the 3rd Generation Partnership Project (3GPP) has defined 4 BAP control PDU types:
  • An IAB node can use the BAP control PDU to notify its child IAB nodes that its radio link fails to recover;
  • BAP routing ID The BAP control PDU type for downlink flow control reporting according to the routing ID of the adaptation protocol (BAP routing ID) is sent from the child IAB node to the parent. IAB node report;
  • the parent IAB node asks the child IAB node for the BAP control PDU type of the downstream flow control report, which is sent by the parent IAB node to the child IAB node.
  • the header of the BAP control PDU can be as shown in Figure 1, where the PDU Type field is used to indicate the type of the BAP control PDU, and the existing BAP control PDU type indication can be as shown in Table 1.
  • a radio link failure between an IAB node and its parent IAB node notifies the child IAB node of RLF discovery
  • the BAPcontrol PDU is used to notify the downstream node of the start of the handover, and a new BAP control PDU type is required;
  • An IAB node notifies the upstream traffic information to the child IAB node, which requires two BAP control PDU types;
  • the existing BAP control PDU used for downlink flow control may need to be improved, for example, reporting by BH RLC Channel group;
  • the embodiment of the present application provides an information transmission method for the indication of the BAP control PDU type when the BAP control PDU type increases, by extending the indication value field of the PDU type field to support indicating more types of BAP control PDU types.
  • FIG. 4 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a first IAB node 11 and a second IAB node 12 .
  • the first IAB node 11 may be a child node of the second IAB node 12, or may be a parent node of the second IAB node 12, which is not limited in this embodiment.
  • FIG. 5 is a flowchart of an information transmission method provided by an embodiment of the present application. The method may be executed by the first IAB node, as shown in FIG. 5, including the following steps:
  • Step 501 send BAP Control PDU to the second IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the second IAB node may be a child node of the first IAB node, or may be a parent node of the first IAB node.
  • the above-mentioned first PDU type field may be understood as a predefined PDU type field or a PDU type field in the prior art, for example, the PDU Type field shown in FIG. 1 .
  • the above-mentioned first PDU type field supports indicating the PDU type in K, and K is a positive integer.
  • the first PDU type field supports indicating 4 kinds of PDUs Type
  • the indication value of the first PDU type field corresponding to various PDU types may be as shown in Table 1.
  • the above-mentioned extended PDU type field is a PDU type field obtained by extending the first PDU type field, which may be understood as a PDU type field obtained by extending the first PDU type field.
  • the above-mentioned extended PDU type field may be a PDU type field obtained by extending the bits used to indicate the PDU type on the basis of the first PDU type field, or extended on the basis of the first PDU type field to indicate the PDU type
  • the above-mentioned extended PDU type field supports indicating at least one PDU type, for example, the above-mentioned extended PDU type field may support indicating at least one PDU type different from the above-mentioned K PDU types, or the above-mentioned extended PDU type field may support Indicating more than K PDU types, or the combination of the above-mentioned extended PDU type field and the first PDU type field may support indicating more than K PDU types.
  • first PDU type field corresponds to the first BAP Control PDU format.
  • PDU header of the first BAP Control PDU format may be as shown in FIG. 1 .
  • extended PDU type field corresponds to the second BAP Control PDU format.
  • PDU header of the second BAP Control PDU format may be as shown in Figures 6a to 6c.
  • the above-mentioned first indication is used to indicate whether the second IAB node has an extended PDU type field.
  • the above-mentioned first indication can be indicated by bits in the packet header of the BAP Control PDU, for example, can be indicated by the PDU type field of the PDU packet header of the first BAP Control PDU format shown in FIG. At least one reserved bit (that is, R) of the PDU header of the first BAP Control PDU format indicates.
  • the PDU type of the above-mentioned BAP Control PDU may be indicated only by the extended PDU type field, or may be indicated by the extended PDU type field and the first A PDU Type field indicates jointly.
  • the PDU type of the above-mentioned BAP Control PDU may be indicated by the first PDU type field.
  • the BAP Control PDU is sent to the second IAB node; wherein, the header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field , the extended PDU type field is the PDU type field obtained by extending the first PDU type field, the first PDU type field supports indicating K PDU types, and K is a positive integer, so that the type of BAP control PDU can be increased in this way.
  • the types of the indicated PDU types that can be supported are added through the extended PDU type field.
  • the extended PDU type field supports indicating M PDU types, or the extended PDU type field supports indicating N PDU types, where the N PDU types are different from the K PDU types, and M and N are positive integers, and M is greater than K.
  • the above-mentioned extended PDU type field may support more than K types of PDU types, that is, the number of types of PDU types indicated by the extended PDU type field is greater than the types of PDU types indicated by the first PDU type field. quantity.
  • the number of bits in the above-mentioned extended PDU type field may be greater than the number of bits in the above-mentioned first PDU type field, or the number of indication values in the above-mentioned extended PDU type field for indicating the PDU type is greater than that in the first PDU type field for The number of indication values indicating the type of PDU.
  • the above-mentioned extended PDU type field and the first PDU type field may be respectively used to indicate different PDU types.
  • the above-mentioned first PDU type field is the PDU Type field shown in FIG. 1
  • the above-mentioned first PDU type field can support 16 PDU types
  • the above-mentioned extended PDU type field can support indicating PDUs other than the above-mentioned 16 PDU types type.
  • the first indication is indicated by the first reserved bits of the PDU header of the first BAP Control PDU format, and the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field;
  • the first indication is indicated by the first indication value of the first PDU type field.
  • the above-mentioned first indication can be indicated by the reserved bits of the PDU header of the first BAP Control PDU format, wherein the above-mentioned first reserved bits can include at least one reservation of the PDU header of the first BAP Control PDU format. bits. For example, whether there is an extended PDU type field can be indicated by at least one reserved bit (that is, R) in the PDU header of the first BAP Control PDU format shown in FIG. 1 .
  • the first indication may be indicated by an indication value of the first PDU type field, wherein the first indication value may include at least one indication value of the first PDU type field.
  • the presence of the extended PDU type field and the absence of the extended PDU type field may be indicated by two different indication values in the first PDU type field, or the presence of the extension may be indicated by one indication value in the first PDU type field.
  • PDU Type field may indicate whether the extended PDU type field and the absence of the extended PDU type field.
  • the value is used to indicate the PDU type.
  • the second IAB node considers that there is an extended PDU type field when the indication value parsed into the first PDU type field is 1111, and if the indication value parsed into the first PDU type field is an indication value other than 1111, Then the PDU type is determined according to the indication value.
  • the extended PDU type field may include at least one of the following:
  • the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field.
  • the bits of the first PDU type field may include part or all of the bits of the first PDU type field.
  • the above-mentioned second reserved bits may include part or all of the reserved bits of the PDU header of the first BAP Control PDU format. It should be noted that, when the first indication is indicated by the first reserved bits of the PDU header of the first BAP Control PDU format, the above-mentioned first reserved bits and the second reserved bits are different.
  • the above-mentioned bits located outside the PDU header of the first BAP Control PDU format may include one or more bits located outside the PDU header of the first BAP Control PDU format, for example, as shown in FIG. 6 c and FIG. 7 . 8 bits of line padding.
  • the extended PDU type field may only include part or all of the bits of the first PDU type field.
  • the first PDU type field includes four bits of X1, X2, X3 and X4, and the extended PDU type field also includes four bits of X1, X2, X3 and X4, wherein, in the first indication, there is no extended PDU.
  • the extended PDU type field may only include part or all of the reserved bits of the PDU header of the first BAP Control PDU format.
  • the extended PDU type field may only include the 3 R bits shown in FIG. 1 , wherein, in the case where the first indication does not have the extended PDU type field, the above-mentioned 3 R bits indicate that it is related to the first PDU.
  • the type field supports PDU types with different types of indicated PDU types, or the PDU type can be indicated by combining all the bits of the first PDU type field and the above-mentioned three R bits.
  • the extended PDU type field may only include at least one bit outside the PDU header of the first BAP Control PDU format.
  • the extended PDU type field includes 8 bits located outside the PDU header of the first BAP Control PDU format, and a specific indication value of the first PDU type field indicates that there is an extended PDU Type field.
  • the extended PDU type field may include part or all of the bits of the first PDU type field and part or all of the reserved bits of the PDU header of the first BAP Control PDU format.
  • the extended PDU type field may include part or all of the bits of the first PDU type field and at least one bit outside the PDU header of the first BAP Control PDU format.
  • the extended PDU type field may include 4 bits of the first PDU type field and 8 bits located outside the PDU header of the first BAP Control PDU format, wherein the first indication that the extended PDU type field exists
  • the PDU type can be indicated by the above-mentioned 12-bit indication value.
  • the extended PDU type field may include part or all of the reserved bits of the PDU header of the first BAP Control PDU format and at least one bit located outside the PDU header of the first BAP Control PDU format.
  • the extended PDU type field may include 2 reserved bits of the PDU header of the first BAP Control PDU format and 8 bits located outside the PDU header of the first BAP Control PDU format, wherein the first indication exists
  • the PDU type may be indicated by the above-mentioned 10-bit indication value.
  • the extended PDU type field may include part or all of the bits in the first PDU type field, part or all of the reserved bits in the PDU header of the first BAP Control PDU format, and bits in the first BAP Control PDU format. at least one bit outside the PDU header.
  • the extended PDU type field may include 4 bits of the first PDU type field, 2 reserved bits of the PDU header of the first BAP Control PDU format, and 8 bits located outside the PDU header of the first BAP Control PDU format. 14 bits, wherein, in the case that the first indication exists in the extended PDU type field, the PDU type can be indicated by the indication value of the above 14 bits.
  • the indication value field of the extended PDU type field is different from the indication value field of the first PDU type field.
  • the above-mentioned indication value range may be understood as the value range of the indication value.
  • the indication value field of the above-mentioned extended PDU type field is different from the indication value field of the first PDU type field, for example, the indication value field of the above-mentioned extended PDU type field is larger than the indication value field of the first PDU type field, or the first The intersection of the indicated value field of the PDU type field and the indicated value field of the first PDU type field is empty.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the extended PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the extended PDU type field, so that the second IAB node can directly base on the extended PDU type field.
  • the indicated value of the PDU Type field of the BAP Control PDU determines the PDU type of the BAP Control PDU.
  • the indication value field of the extended PDU type field is: [0, 2 r -1], or [2 q , 2 q +2 r -1];
  • r is the number of bits of the extended PDU type field
  • q is the number of bits of the first PDU type field.
  • the indication value field of the first PDU type field when the indication value field of the first PDU type field is [0, 2 q -1], the indication value field of the above-mentioned extended PDU type field may include an indication value that is the same as the indication value of the first PDU type field the same indicated value.
  • the indication value field of the first PDU type field is [0, 2 q -1]
  • the indication value field of the above-mentioned extended PDU type field only includes the same indication value of the first PDU type field different indication values.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the second PDU type field
  • the second PDU type field includes bits of the extended PDU type field and bits of the first PDU type field, and the bits of the extended PDU type field are the same as the first PDU type field. bits are different.
  • the extended PDU type field and the first PDU type field may jointly indicate the PDU type of the above-mentioned BAP Control PDU. For example, if the extended PDU type field includes 2 bits, and the first PDU type field includes 4 bits, the PDU type of the above-mentioned BAP Control PDU may be indicated by an indication value of 6 bits.
  • the indication value field of the second PDU type field may be: [0, 2 i+j -1];
  • i is the number of bits in the first PDU type field
  • j is the number of bits in the extended PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the first PDU type field, so that the second IAB
  • the node may directly determine the PDU type of the BAP Control PDU based on the indicated value of the first PDU type field.
  • FIG. 8 is a flowchart of another information transmission method provided by an embodiment of the present application. The method is executed by the second IAB node, as shown in FIG. 8, and includes the following steps:
  • Step 801 receive BAP Control PDU from the first IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the above-mentioned first PDU type field may be understood as a predefined PDU type field or a PDU type field in the prior art, for example, the PDU Type field shown in FIG. 1 .
  • the above-mentioned first PDU type field supports indicating the PDU type in K, and K is a positive integer.
  • the first PDU type field supports indicating 4 kinds of PDUs Type
  • the indication value of the first PDU type field corresponding to various PDU types may be as shown in Table 1.
  • the above-mentioned extended PDU type field is a PDU type field obtained by extending the first PDU type field, which may be understood as a PDU type field obtained by extending the first PDU type field.
  • the above-mentioned extended PDU type field may be a PDU type field obtained by extending the bits used to indicate the PDU type on the basis of the first PDU type field, or extended on the basis of the first PDU type field to indicate the PDU type
  • the above-mentioned extended PDU type field supports indicating at least one PDU type, for example, the above-mentioned extended PDU type field may support indicating at least one PDU type different from the above-mentioned K PDU types, or the above-mentioned extended PDU type field may support Indicating more than K PDU types, or the combination of the above-mentioned extended PDU type field and the first PDU type field may support indicating more than K PDU types.
  • the above-mentioned first indication is used to indicate whether the second IAB node has an extended PDU type field.
  • the above-mentioned first indication can be indicated by bits in the header of the BAP Control PDU, for example, it can be indicated by the PDU type field of the header of the BAP Control PDU shown in FIG. 1 , or it can be indicated by the BAP Control PDU shown in FIG. 1 .
  • the PDU type of the above-mentioned BAP Control PDU may be indicated only by the extended PDU type field, or may be indicated by the extended PDU type field and the first A PDU Type field indicates jointly.
  • the PDU type of the above-mentioned BAP Control PDU may be indicated by the first PDU type field.
  • the second IAB node when the second IAB node receives the above-mentioned BAP Control PDU, if the second IAB node supports indicating the PDU type through the extended PDU type field, it can be based on the first indication of the packet header of the above-mentioned BAP Control PDU. Determine whether there is an extended PDU type field. In the case of an extended PDU type field, the PDU type of the above-mentioned BAP Control PDU can be determined according to the extended PDU type field. Otherwise, the PDU of the above-mentioned BAP Control PDU can be determined according to the first PDU type field. type.
  • the PDU type of the above-mentioned BAP Control PDU may be determined based on the first PDU type field. PDU type, the above BAP Control PDU can be discarded.
  • the BAP Control PDU is received from the first IAB node; wherein, the header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field , the extended PDU type field is the PDU type field obtained by extending the first PDU type field, the first PDU type field supports indicating K PDU types, and K is a positive integer, so that the type of BAP control PDU can be increased in this way.
  • the types of the indicated PDU types that can be supported are added through the extended PDU type field.
  • the extended PDU type field supports indicating M PDU types, or the extended PDU type field supports indicating N PDU types, where the N PDU types are different from the K PDU types, and M and N are positive integers, and M is greater than K.
  • the first indication is indicated by the first reserved bits of the PDU header of the first BAP Control PDU format, and the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field;
  • the first indication is indicated by the first indication value of the first PDU type field.
  • the extended PDU type field includes at least one of the following:
  • the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field.
  • the indication value field of the extended PDU type field is different from the indication value field of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the extended PDU type field.
  • the indication value field of the extended PDU type field is: [0, 2 r -1], or [2 q , 2 q +2 r -1];
  • r is the number of bits of the extended PDU type field
  • q is the number of bits of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the second PDU type field
  • the second PDU type field includes bits of the extended PDU type field and bits of the first PDU type field, and the bits of the extended PDU type field are the same as the first PDU type field. bits are different.
  • the indication value field of the second PDU type field is: [0, 2 i+j -1];
  • i is the number of bits in the first PDU type field
  • j is the number of bits in the extended PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the first PDU type field.
  • the method may also include:
  • the BAP Control PDU is discarded.
  • the second IAB node does not support indicating the PDU type through the extended PDU type field, that is, the second IAB node does not support the BAP Control PDU format shown in Figures 6a to 6c and Figure 7 and the like.
  • the PDU type of the received BAP Control PDU can be directly parsed according to the first PDU type field. PDU type, the BAP Control PDU can be discarded.
  • this embodiment is an implementation of the second IAB node corresponding to the embodiment shown in FIG. 5 .
  • the specific implementation refer to the relevant description of the embodiment shown in FIG. 5 , and achieve the same beneficial effects. In order to avoid repeated descriptions, detailed descriptions are omitted here.
  • FIG. 9 is a structural diagram of an information transmission apparatus provided by an embodiment of the present application. As shown in FIG. 9, the information transmission apparatus 900 includes:
  • a sending module 901 is used to send a BAP Control PDU to the second IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the extended PDU type field supports indicating M PDU types, or the extended PDU type field supports indicating N PDU types, where the N PDU types are different from the K PDU types, and M and N are positive integers, and M is greater than K.
  • the first indication is indicated by the first reserved bits of the PDU header of the first BAP Control PDU format, and the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field;
  • the first indication is indicated by the first indication value of the first PDU type field.
  • the extended PDU type field includes at least one of the following:
  • the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field.
  • the indication value field of the extended PDU type field is different from the indication value field of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the extended PDU type field.
  • the indication value field of the extended PDU type field is: [0, 2 r -1], or [2 q , 2 q +2 r -1];
  • r is the number of bits of the extended PDU type field
  • q is the number of bits of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the second PDU type field
  • the second PDU type field includes bits of the extended PDU type field and bits of the first PDU type field, and the bits of the extended PDU type field are the same as the first PDU type field. bits are different.
  • the indication value field of the second PDU type field is: [0, 2 i+j -1];
  • i is the number of bits in the first PDU type field
  • j is the number of bits in the extended PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the first PDU type field.
  • the information transmission apparatus provided in the embodiment of the present application can implement each process in the method embodiment of FIG. 5 , and to avoid repetition, details are not described here.
  • the information transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in the first IAB node.
  • FIG. 10 is a structural diagram of another information transmission apparatus provided by an embodiment of the present application. As shown in FIG. 10, the information transmission apparatus 1000 includes:
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the extended PDU type field supports indicating M PDU types, or the extended PDU type field supports indicating N PDU types, where the N PDU types are different from the K PDU types, and M and N are positive integers, and M is greater than K.
  • the first indication is indicated by the first reserved bits of the PDU header of the first BAP Control PDU format, and the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field;
  • the first indication is indicated by the first indication value of the first PDU type field.
  • the extended PDU type field includes at least one of the following:
  • the first BAP Control PDU format is the BAP Control PDU format corresponding to the first PDU type field.
  • the indication value field of the extended PDU type field is different from the indication value field of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the extended PDU type field.
  • the indication value field of the extended PDU type field is: [0, 2r-1], or [2q, 2q+2r-1];
  • r is the number of bits of the extended PDU type field
  • q is the number of bits of the first PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the second PDU type field
  • the second PDU type field includes bits of the extended PDU type field and bits of the first PDU type field, and the bits of the extended PDU type field are the same as the first PDU type field. bits are different.
  • the indication value field of the second PDU type field is: [0, 2i+j-1];
  • i is the number of bits in the first PDU type field
  • j is the number of bits in the extended PDU type field.
  • the PDU type of the BAP Control PDU is indicated by the indication value of the first PDU type field.
  • the device further includes:
  • a discarding module configured to discard the BAP if the first indication indicates that the extended PDU type field exists in the case that the second IAB node does not support indicating the PDU type through the extended PDU type field Control PDUs.
  • the information transmission apparatus provided in this embodiment of the present application can implement each process in the method embodiment of FIG. 8 , and to avoid repetition, details are not described here.
  • the information transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in the second IAB node.
  • FIG. 11 is a structural diagram of a network device provided by an embodiment of the present application.
  • the network device 1100 includes: a processor 1101, a transceiver 1102, a memory 1103, and a bus interface, wherein:
  • a transceiver 1102 configured to send a BAP Control PDU to the second IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the above-mentioned processor 1101 and transceiver 1102 can implement each process implemented by the first IAB node in the method embodiment of FIG. 5 , and can achieve the same technical effect. To avoid repetition, details are not repeated here. .
  • the transceiver 1102 is configured to receive and transmit data under the control of the processor 1101, and the transceiver 1102 includes at least two antenna ports.
  • the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 1101 and various circuits of memory represented by memory 1103 linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1102 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the bus interface may also be an interface capable of externally connecting a desired device, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1101 in performing operations.
  • an embodiment of the present application further provides a first IAB node, including a processor 1101, a memory 1103, a program or instruction stored in the memory 1103 and executable on the processor 1101, the program or instruction being When executed by the processor 1101, each process of the above information transmission method embodiment is implemented, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
  • FIG. 12 is a structural diagram of a second IAB node provided by an embodiment of the present application.
  • the second IAB node 1200 includes: a processor 1201, a transceiver 1202, a memory 1203, and a bus interface, where:
  • transceiver 1202 for receiving a BAP Control PDU from the first IAB node
  • the packet header of the BAP Control PDU includes a first indication, and the first indication is used to indicate whether there is an extended PDU type field, and the extended PDU type field is a PDU type field obtained by extending the first PDU type field,
  • the first PDU type field supports indicating K PDU types, where K is a positive integer.
  • the above-mentioned processor 1201 and transceiver 1202 can implement each process implemented by the second IAB node in the method embodiment of FIG. 8 , and can achieve the same technical effect. To avoid repetition, details are not repeated here. .
  • the transceiver 1202 is configured to receive and transmit data under the control of the processor 1201, and the transceiver 1202 includes at least two antenna ports.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1201 and various circuits of memory represented by memory 1203 linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1202 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the bus interface may also be an interface capable of externally connecting a required device, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.
  • an embodiment of the present application further provides a second IAB node, including a processor 1201, a memory 1203, a program or instruction stored in the memory 1203 and executable on the processor 1201, the program or instruction being When executed by the processor 1201, each process of the foregoing information transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiments of the present application further provide a readable storage medium, the readable storage medium may be non-volatile or volatile, and a program or an instruction is stored on the readable storage medium, and the program or instruction is stored in the readable storage medium.
  • the processor When executed, the processor implements each process of the foregoing first IAB node-side information transmission method or the second IAB node-side information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, details are not described here.
  • Embodiments of the present application further provide a computer program product, where the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement the information transmission on the first IAB node side.
  • the method or each process of the embodiment of the information transmission method on the second IAB node side and can achieve the same technical effect, in order to avoid repetition, details are not repeated here.
  • the processor is the processor in the electronic device described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network device program or instruction to implement the above-mentioned first IAB node
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is configured to run a network device program or instruction to implement the above-mentioned first IAB node
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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Abstract

本申请公开了一种信息传输方法、装置及IAB节点,属于通信技术领域。该方法包括:向第二IAB节点发送BAP Control PDU;其中,BAP Control PDU的包头包括第一指示,第一指示用于指示是否存在扩展的PDU类型域,扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域(501),第一PDU类型域支持指示K种PDU类型,K为正整数。

Description

信息传输方法、装置及IAB节点
相关申请的交叉引用
本申请主张在2021年3月11日在中国提交的中国专利申请No.202110268074.3的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,尤其涉及一种信息传输方法、装置及IAB节点。
背景技术
回传适配协议控制协议数据单元(Backhaul Adaptation Protocol control Protocol Data Unit,BAP control PDU)用来承载BAP层的控制信息。目前,BAP control PDU的包头(header)可以如图1所示,包括信息类型域(D/C)、PDU类型(PDU Type)域和三个保留比特位(R),其中,上述D/C域用于指示为控制信号还是数据,上述PDU Type域用于指示BAP control PDU的类型。在现有技术中,上述PDU Type域仅包括4个比特,BAP control PDU的类型仅包括四种,分别通过PDU Type域的四个指示值指示。然而,在BAP control PDU的类型不断增多的情况下,如何指示BAP control PDU的类型,并没有解决方案。
发明内容
本申请实施例提供一种信息传输方法、装置及IAB节点,能够在BAP control PDU的类型增多的情况下提供一种BAP control PDU的类型指示方式,以支持指示更多的PDU类型。
第一方面,本申请实施例提供了一种信息传输方法,由第一自回传(Integrated Access Backhaul,IAB)节点执行,该方法包括:
向第二IAB节点发送BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于 指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
第二方面,本申请实施例还提供了一种信息传输方法,由第二IAB节点执行,该方法包括:
从第一IAB节点接收BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
第三方面,本申请实施例提供了一种信息传输装置,该装置包括:
发送模块,用于向第二IAB节点发送BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
第四方面,本申请实施例还提供了一种信息传输装置,该装置包括:
接收模块,用于从第一IAB节点接收BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
第五方面,本申请实施例还提供了一种第一IAB节点,该第一IAB节点包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,本申请实施例还提供了一种第二IAB节点,该第二IAB节点包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的方法的 步骤。
第七方面,本申请实施例还提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第八方面,本申请实施例还提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如上述第一方面所述的方法,或者实现如上面第二方面所述的方法。
第九方面,提供了一种计算机程序产品,所述计算机程序产品被存储在非瞬态的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十方面,提供一种通信设备,被配置为执行如第一方面所述的方法的步骤,或者执行如第二方面所述的方法的步骤。
在本申请实施例中,通过向第二IAB节点发送BAP Control PDU;其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。这样可以在BAP control PDU的类型增多的情况下通过扩展的PDU类型域增加可支持指示的PDU类型的种类。
附图说明
图1是相关技术提供的BAP Control PDU包头格式的示意图;
图2是本申请实施例提供的一种IAB系统的结构示意图;
图3是本申请实施例提供的一种AB系统的CU-DU的结构示意图;
图4是本申请实施例可应用的一种网络系统的结构图;
图5是本申请实施例提供的一种信息传输方法的流程图;
图6a是本申请实施例提供的扩展PDU类型域的示意图之一;
图6b是本申请实施例提供的扩展PDU类型域的示意图之二;
图6c是本申请实施例提供的扩展PDU类型域的示意图之三;
图7是本申请实施例提供的扩展PDU类型域的示意图之四;
图8是本申请实施例提供的另一种信息传输方法的流程图;
图9是本申请实施例提供的一种信息传输装置的结构图;
图10是本申请实施例提供的另一种信息传输装置的结构图;
图11是本申请实施例提供的一种第一IAB节点的结构图;
图12是本申请实施例提供的一种第二IAB节点的结构图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“示所一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。然而,以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR系统应用以外的应用, 如第6代(6th Generation,6G)通信系统。
为了方便理解,以下对本申请实施例涉及的一些内容进行说明:
自回传(Integrated Access Backhaul,IAB):
IAB系统是新空口(New Radio,NR)第十六版本(Release 16,Rel-16)开始制定标准的一项技术。如图2所示的IAB系统的结构示意图,一个IAB节点包括分布单元(Distributed Unit,DU)功能部分和移动设备(Mobile Termination,MT)功能部分。依靠MT,一个接入IAB节点(即IAB node)可以找到一个上游IAB节点(即parent IAB node),并跟接入IAB节点的DU建立无线连接,该无线连接被称为回传链接(即backhaul link)。在一个IAB节点建立完整的回传链路后,该IAB节点打开其DU功能,DU会提供小区服务,即DU可以为UE提供接入服务。一个自接入回传回路还包含一个宿主IAB节点(即donor IAB node),宿主IAB节点有直接相连的有线传输网。
图3是一种IAB系统的中心单元-分布单元(Centralized Unit-Distributed Unit,CU-DU)的结构示意图。在一个自接入回传回路中,所有的IAB节点的DU都连接到一个CU节点,该CU节点包括CU控制面(即CU-CP)和CU用户面(即CU-UP),由CU节点通过F1-C或称为F1-AP(即F1应用协议)协议对DU进行配置,通过无线资源控制(Radio Resource Control,RRC)协议对MT进行配置。宿主IAB节点没有MT功能部分。IAB系统的引入是为了针对接入点密集部署时,有线传输网部署不到位的情况,即在没有有线传输网络时,接入点可以依赖无线回传。
BAP Control PDU:
BAP control PDU用来承载BAP层的控制信息。根据R16的BAP层协议,第三代合作计划(3rd Generation Partnership Project,3GPP)已经定义4个BAP control PDU类型:
回传无线链路失败指示(BH RLF Indication):一个IAB节点可以用该BAP control PDU来通知其子IAB节点其无线链路恢复失败的消息;
回传无线链路控制信道的流控制反馈(Flow control Feedback per BH RLC Channel):按回传无线链路控制信道(BH RLC Channel)进行下行流量控制报告的BAP control PDU类型,由子IAB节点向父IAB节点汇报;
回传适配协议路由标识的流控制反馈(Flow control feedback per BAP routing ID):按回传适配协议路由标识(BAP routing ID)进行下行流量控制报告的BAP control PDU类型,由子IAB节点向父IAB节点汇报;
流控制反馈询问(Flow control Feedback polling):父IAB节点向子IAB节点询问下行流量控制报告的BAP control PDU类型,由父IAB节点向子IAB节点发送。
具体地,BAP control PDU的header可以如图1所示,其中,PDU Type域用来指示BAP control PDU的类型,现有BAP control PDU类型指示可以如表1所示。
表1 PDU类型
比特 描述
0000 回传无线链路控制信道的流控制反馈
0001 回传适配协议路由标识的流控制反馈
0010 流控制反馈询问
0011 回传无线链路失败指示
0100-1111 保留
目前,3GPP正在讨论的下列情形,可能会引入新的BAP control PDU类型:
一个IAB节点与其父IAB节点的发生无线链路失败,向子IAB节点通知RLF发现;
一个IAB节点与其父IAB节点的无线链路失败后无线链路恢复成功,向子IAB节点通知RLF恢复成功;
IAB网络切换中用BAPcontrol PDU通知下游节点切换开始,需要新的BAP control PDU类型;
一个IAB节点向子IAB节点通知上行流量信息,需要两个BAP control PDU类型;
现有用于下行流量控制的BAP control PDU可能需要改进,例如,按BH RLC Channel组进行汇报;
用于报告基于数据等待时延或速率的拥塞信息;
潜在用于局域重路由(local rerouting)的备选链路状态监测和通知的信息。
本申请实施例针对BAP control PDU类型增加的情况下BAP control PDU类型的指示,提供了一种信息传输方法,通过扩展PDU类型域的指示值域以支持指示更多种类的BAP control PDU类型。
图4示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括第一IAB节点11和第二IAB节点12。其中,第一IAB节点11可以是第二IAB节点12的子节点,也可以是第二IAB节点12的父节点,本实施例对此不做限定。
下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的信息传输方法进行详细地说明。
请参见图5,图5是本申请实施例提供的一种信息传输方法的流程图,该方法可以由第一IAB节点执行,如图5所示,包括以下步骤:
步骤501、向第二IAB节点发送BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
本实施例中,上述第二IAB节点可以是第一IAB节点的子节点,也可以是第一IAB节点的父节点。
上述第一PDU类型域可以理解为预定义的PDU类型域或者现有技术中的PDU类型域,例如,图1所示的PDU Type域。其中,上述第一PDU类型域支持指示K中PDU类型,K为正整数,以上述第一PDU类型域为图1所示的PDU Type域为例,该第一PDU类型域支持指示4种PDU类型,各种PDU类型对应的第一PDU类型域的指示值可以如表1所示。
上述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,可以理解为在第一PDU类型域的基础上扩展得到的PDU类型域。例如,上述扩展的PDU类型域可以是在第一PDU类型域的基础上扩展用于指示PDU类型的比特位得到的PDU类型域,或者在第一PDU类型域的基础上扩展用于 指示PDU类型的指示值域得到的PDU类型域。其中,上述扩展的PDU类型域支持指示至少一种PDU类型,例如,上述扩展的PDU类型域可以支持指示至少一种与上述K种PDU类型不同的PDU类型,或者上述扩展的PDU类型域可以支持指示超过K种的PDU类型,或者上述扩展的PDU类型域和第一PDU类型域的结合可以支持指示超过K种的PDU类型。
需要说明的是,上述第一PDU类型域对应于第一BAP Control PDU格式,示例地,第一BAP Control PDU格式的PDU包头可以如图1所示。上述扩展的PDU类型域对应于第二BAP Control PDU格式,示例地,第二BAP Control PDU格式的PDU包头可以如图6a至图6c所示。
上述第一指示用于指示第二IAB节点是否存在扩展的PDU类型域。其中,上述第一指示可以通过BAP Control PDU的包头中的比特位指示,例如,可以通过图1所示的第一BAP Control PDU格式的PDU包头的PDU类型域指示,或者可以通过图1所示的第一BAP Control PDU格式的PDU包头的至少一个保留比特位(即R)指示。
需要说明的是,在上述第一指示指示存在扩展的PDU类型域的情况下,上述BAP Control PDU的PDU类型可以是仅通过扩展的PDU类型域指示,也可以是通过扩展的PDU类型域和第一PDU类型域共同指示。在上述第一指示指示不存在扩展的PDU类型域的情况下,上述BAP Control PDU的PDU类型可以是通过第一PDU类型域指示。
本申请实施例提供的信息传输方法,通过向第二IAB节点发送BAP Control PDU;其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数,这样可以在BAP control PDU的类型增多的情况下通过扩展的PDU类型域增加可支持指示的PDU类型的种类。
可选地,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
在一实施方式中,上述扩展的PDU类型域可以支持指示超过K种的PDU 类型,也即扩展的PDU类型域支持指示的PDU类型的种类数量大于第一PDU类型域支持指示的PDU类型的种类数量。例如,上述扩展的PDU类型域的比特数可以大于上述第一PDU类型域的比特数,或者上述扩展的PDU类型域中用于指示PDU类型的指示值的数量大于第一PDU类型域中用于指示PDU类型的指示值的数量。
在另一实施方式中,上述扩展的PDU类型域和第一PDU类型域可以分别用于指示不同的PDU类型。例如,上述第一PDU类型域为图1所示的PDU Type域,上述第一PDU类型域可以支持16种PDU类型,上述扩展的PDU类型域可以支持指示除上述16种PDU类型之外的PDU类型。
可选地,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
或者
所述第一指示通过所述第一PDU类型域的第一指示值指示。
在一实施方式中,上述第一指示可以通过第一BAP Control PDU格式的PDU包头的保留比特位指示,其中,上述第一保留比特位可以包括第一BAP Control PDU格式的PDU包头的至少一个保留比特位。例如,可以通过图1所示的第一BAP Control PDU格式的PDU包头的至少一个保留比特位(即R)指示是否存在扩展的PDU类型域。
又例如,如图6a至图6c所示,将第一BAP Control PDU格式的PDU包头的最后一个R比特(bit)重定义为E bit,用来指示是否存在扩展的PDU类型域,其中,若E=1,则指示存在扩展的PDU类型域,否则指示不存在扩展的PDU类型域。
在另一实施方式中,上述第一指示可以通过第一PDU类型域的指示值指示,其中,上述第一指示值可以包括第一PDU类型域的至少一个指示值。例如,可以通过上述第一PDU类型域的两个不同的指示值分别指示存在扩展的PDU类型域和不存在扩展的PDU类型域,或者可以通过上述第一PDU类型域的一个指示值指示存在扩展的PDU类型域。
又例如,如图7所示,通过第一PDU类型域的一个特定指示值,如 X1X2X3X4=1111,来指示存在扩展的PDU类型域,而第一PDU类型域除上述特定指示值之外的指示值用于指示PDU类型。这样第二IAB节点在解析到第一PDU类型域的指示值为1111的情况下则认为存在扩展的PDU类型域,若解析到第一PDU类型域的指示值为除1111之外的指示值,则依据该指示值确定PDU类型。
可选地,所述扩展的PDU类型域可以包括如下至少一项:
所述第一PDU类型域的比特位;
第一BAP Control PDU格式的PDU包头的第二保留比特位;
位于第一BAP Control PDU格式的PDU包头之外的比特位;
其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
本实施例中,上述第一PDU类型域的比特位可以包括第一PDU类型域的部分或者全部比特位。
上述第二保留比特位可以包括第一BAP Control PDU格式的PDU包头的部分或者全部保留比特位。需要说明的是,在第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示的情况下,上述第一保留比特位和第二保留比特位不同。
上述位于第一BAP Control PDU格式的PDU包头之外的比特位可以包括位于第一BAP Control PDU格式的PDU包头之外的一个或多个比特位,例如,如图6c和图7示出的交叉线填充的8个比特位。
在一实施方式中,扩展的PDU类型域可以仅包括第一PDU类型域的部分或全部比特位。例如,第一PDU类型域包括X1、X2、X3和X4四个比特位,扩展的PDU类型域也包括X1、X2、X3和X4四个比特位,其中,在第一指示不存在扩展的PDU类型域的情况下,X1X2X3X4=0001指示PDU类型a,在第一指示存在扩展的PDU类型域的情况下,X1X2X3X4=0001指示PDU类型b。
在另一实施方式中,扩展的PDU类型域可以仅包括第一BAP Control PDU格式的PDU包头的部分或全部保留比特位。例如,扩展的PDU类型域可以仅包括图1所示的3个R比特位,其中,在第一指示不存在扩展的PDU 类型域的情况下,通过上述3个R比特位指示与第一PDU类型域所支持指示的PDU类型的种类不同的PDU类型,或者可以通过第一PDU类型域的全部比特位和上述3个R比特位组合指示PDU类型。
在另一实施方式中,扩展的PDU类型域可以仅包括位于第一BAP Control PDU格式的PDU包头之外的至少一个比特位。
例如,如图6c所示,扩展的PDU类型域包括位于第一BAP Control PDU格式的PDU包头之外的8个比特位,且将第一BAP Control PDU格式的PDU包头最后一个Rbit重定义为E bit,当E=1时用于指示存在扩展的PDU类型域,否则不存在扩展的PDU类型。
又例如,如图7所示,扩展的PDU类型域包括位于第一BAP Control PDU格式的PDU包头之外的8个比特位,且通过第一PDU类型域的一个特定指示值指示存在扩展的PDU类型域。
在另一实施方式中,扩展的PDU类型域可以包括第一PDU类型域的部分或全部比特位以及第一BAP Control PDU格式的PDU包头的部分或者全部保留比特位。
例如,如图6a所示,扩展的PDU类型域包括第一PDU类型域的4个比特位以及2个保留比特位,且将第一BAP Control PDU格式的PDU包头最后一个Rbit重定义为E bit,当E=1时指示PDU类型域由4bit扩展为6bit,也即存在扩展的PDU类型,否则不存在扩展的PDU类型。
又例如,如图6b所示,扩展的PDU类型域包括第一PDU类型域的4个比特位以及1个保留比特位,将第一BAP Control PDU格式的PDU包头最后一个Rbit重定义为E bit,当E=1时指示PDU类型域由4bit扩展为5bit,也即存在扩展的PDU类型,否则不存在扩展的PDU类型。
在另一实施方式中,扩展的PDU类型域可以包括第一PDU类型域的部分或全部比特位以及位于第一BAP Control PDU格式的PDU包头之外的至少一个比特位。例如,扩展的PDU类型域可以包括第一PDU类型域的4个比特位以及位于第一BAP Control PDU格式的PDU包头之外的8个比特位,其中,在第一指示存在扩展的PDU类型域的情况下,可以通过上述12个比特位的指示值指示PDU类型。
在另一实施方式中,扩展的PDU类型域可以包括第一BAP Control PDU格式的PDU包头的部分或者全部保留比特位以及位于第一BAP Control PDU格式的PDU包头之外的至少一个比特位。例如,扩展的PDU类型域可以包括第一BAP Control PDU格式的PDU包头的2个保留比特位以及位于第一BAP Control PDU格式的PDU包头之外的8个比特位,其中,在第一指示存在扩展的PDU类型域的情况下,可以通过上述10个比特位的指示值指示PDU类型。
在另一实施方式中,扩展的PDU类型域可以包括第一PDU类型域的部分或全部比特位、第一BAP Control PDU格式的PDU包头的部分或者全部保留比特位以及位于第一BAP Control PDU格式的PDU包头之外的至少一个比特位。例如,扩展的PDU类型域可以包括第一PDU类型域的4个比特位、第一BAP Control PDU格式的PDU包头的2个保留比特位以及位于第一BAP Control PDU格式的PDU包头之外的8个比特位,其中,在第一指示存在扩展的PDU类型域的情况下,可以通过上述14个比特位的指示值指示PDU类型。
可选地,所述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同。
本实施例中,上述指示值域可以理解为指示值的取值范围。上述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同,例如,上述扩展的PDU类型域的指示值域大于第一PDU类型域的指示值域,或者第一PDU类型域的指示值域和第一PDU类型域的指示值域的交集为空。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述扩展的PDU类型域的指示值指示。
本实施例中,在所述第一指示指示存在所述扩展的PDU类型域的情况下,通过扩展的PDU类型域的指示值指示BAP Control PDU的PDU类型,这样第二IAB节点可以直接基于扩展的PDU类型域的指示值确定BAP Control PDU的PDU类型。
可选地,所述扩展的PDU类型域的指示值域为:[0,2 r-1],或者,[2 q,2 q+2 r-1];
其中,r为所述扩展的PDU类型域的比特数,q为所述第一PDU类型域的比特数。
在一实施方式中,扩展的PDU类型域的指示值域可以为[0,2 r-1],也即扩展的PDU类型域的指示值为0至2 r-1,例如,若r=5,则扩展的PDU类型域的指示值域可以为[0,31]。
在该实施方式中,在第一PDU类型域的指示值域为[0,2 q-1]的情况下,上述扩展的PDU类型域的指示值域可以包括与第一PDU类型域的指示值相同的指示值。
在另一实施方式中,扩展的PDU类型域的指示值域可以为[2 q,2 q+2 r-1],也即扩展的PDU类型域的指示值为2 q至2 q+2 r-1,例如,若r=5,q=4,则扩展的PDU类型域的指示值域可以为[16,31]。
在该实施方式中,在第一PDU类型域的指示值域为[0,2 q-1]的情况下,上述扩展的PDU类型域的指示值域仅包括与第一PDU类型域的指示值不相同的指示值。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过第二PDU类型域的指示值指示;
其中,所述第二PDU类型域包括所述扩展的PDU类型域的比特位和所述第一PDU类型域的比特位,所述扩展的PDU类型域的比特位与所述第一PDU类型域的比特位不同。
本实施例中,在所述第一指示指示存在所述扩展的PDU类型域的情况下,可以通过扩展的PDU类型域和第一PDU类型域共同指示上述BAP Control PDU的PDU类型。例如,扩展的PDU类型域包括2个比特位,第一PDU类型域包括4个比特位,则可以通过6个比特位的指示值指示上述BAP Control PDU的PDU类型。
可选地,所述第二PDU类型域的指示值域可以为:[0,2 i+j-1];
其中,i为所述第一PDU类型域的比特数,j为所述扩展的PDU类型域的比特数。
本实施例中,第二PDU类型域的指示值域可以为[0,2 i+j-1],也即第二PDU类型域的指示值为0至2 i+j-1,例如,若i=4,j=2,则第二PDU类型域 的指示值域可以为[0,63]。
可选地,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示。
本实施例中,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示,这样第二IAB节点可以直接基于第一PDU类型域的指示值确定BAP Control PDU的PDU类型。
请参见图8,图8是本申请实施例提供的另一种信息传输方法的流程图,该方法由第二IAB节点执行,如图8所示,包括以下步骤:
步骤801、从第一IAB节点接收BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
本实施例中,上述第一PDU类型域可以理解为预定义的PDU类型域或者现有技术中的PDU类型域,例如,图1所示的PDU Type域。其中,上述第一PDU类型域支持指示K中PDU类型,K为正整数,以上述第一PDU类型域为图1所示的PDU Type域为例,该第一PDU类型域支持指示4种PDU类型,各种PDU类型对应的第一PDU类型域的指示值可以如表1所示。
上述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,可以理解为在第一PDU类型域的基础上扩展得到的PDU类型域。例如,上述扩展的PDU类型域可以是在第一PDU类型域的基础上扩展用于指示PDU类型的比特位得到的PDU类型域,或者在第一PDU类型域的基础上扩展用于指示PDU类型的指示值域得到的PDU类型域。其中,上述扩展的PDU类型域支持指示至少一种PDU类型,例如,上述扩展的PDU类型域可以支持指示至少一种与上述K种PDU类型不同的PDU类型,或者上述扩展的PDU类型域可以支持指示超过K种的PDU类型,或者上述扩展的PDU类型域和第一PDU类型域的结合可以支持指示超过K种的PDU类型。
上述第一指示用于指示第二IAB节点是否存在扩展的PDU类型域。其 中,上述第一指示可以通过BAP Control PDU的包头中的比特位指示,例如,可以通过图1所示的BAP Control PDU的包头的PDU类型域指示,或者可以通过图1所示的BAP Control PDU的包头的至少一个保留比特位(即R)指示。
需要说明的是,在上述第一指示指示存在扩展的PDU类型域的情况下,上述BAP Control PDU的PDU类型可以是仅通过扩展的PDU类型域指示,也可以是通过扩展的PDU类型域和第一PDU类型域共同指示。在上述第一指示指示不存在扩展的PDU类型域的情况下,上述BAP Control PDU的PDU类型可以是通过第一PDU类型域指示。
实际应用中,第二IAB节点在接收到上述BAP Control PDU的情况下,若第二IAB节点支持通过所述扩展的PDU类型域指示PDU类型,则可以根据上述BAP Control PDU的包头的第一指示确定是否存在扩展的PDU类型域,在存在扩展的PDU类型域的情况下可以根据扩展的PDU类型域确定上述BAP Control PDU的PDU类型,否则可以根据第一PDU类型域确定上述BAP Control PDU的PDU类型。若第二IAB节点不支持通过所述扩展的PDU类型域指示PDU类型,则可以基于根据第一PDU类型域确定上述BAP Control PDU的PDU类型,若解析得到第一PDU类型域没有指示上述BAP Control PDU的PDU类型,则可以丢弃上述BAP Control PDU。
本申请实施例提供的信息传输方法,通过从第一IAB节点接收BAP Control PDU;其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数,这样可以在BAP control PDU的类型增多的情况下通过扩展的PDU类型域增加可支持指示的PDU类型的种类。
可选地,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
或者
所述第一指示通过所述第一PDU类型域的第一指示值指示。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,所述扩展的PDU类型域包括如下至少一项:
所述第一PDU类型域的比特位;
第一BAP Control PDU格式的PDU包头的第二保留比特位;
位于第一BAP Control PDU格式的PDU包头之外的比特位;
其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,所述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述扩展的PDU类型域的指示值指示。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,所述扩展的PDU类型域的指示值域为:[0,2 r-1],或者,[2 q,2 q+2 r-1];
其中,r为所述扩展的PDU类型域的比特数,q为所述第一PDU类型域的比特数。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过第二PDU类型域的指示值指示;
其中,所述第二PDU类型域包括所述扩展的PDU类型域的比特位和所述第一PDU类型域的比特位,所述扩展的PDU类型域的比特位与所述第一PDU类型域的比特位不同。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,所述第二PDU类型域的指示值域为:[0,2 i+j-1];
其中,i为所述第一PDU类型域的比特数,j为所述扩展的PDU类型域的比特数。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示。
该实施方式的实现方式可以参见图5所示的实施例的相关说明,此处不作赘述。
可选地,所述方法还可以包括:
在所述第二IAB节点不支持通过所述扩展的PDU类型域指示PDU类型的情况下,若所述第一指示指示存在所述扩展的PDU类型域,则丢弃所述BAP Control PDU。
本实施例中,第二IAB节点不支持通过扩展的PDU类型域指示PDU类型,也即第二IAB节点不支持上述图6a至6c以及图7等示出的BAP Control PDU格式。具体地,在第二IAB节点不支持通过扩展的PDU类型域指示PDU类型的情况下,可以直接根据第一PDU类型域解析接收到的BAP Control PDU的PDU类型,若未解析得到BAP Control PDU的PDU类型,则可以丢弃所述BAP Control PDU。
需要说明的是,本实施例作为图5所示的实施例对应的第二IAB节点的实施方式,其具体的实施方式可以参见图5所示的实施例相关说明,以及达到相同的有益效果,为了避免重复说明,此处不再赘述。
请参见图9,图9是本申请实施例提供的一种信息传输装置的结构图,如图9所示,信息传输装置900包括:
发送模块901,用于向第二IAB节点发送BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
可选地,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
可选地,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
或者
所述第一指示通过所述第一PDU类型域的第一指示值指示。
可选地,所述扩展的PDU类型域包括如下至少一项:
所述第一PDU类型域的比特位;
第一BAP Control PDU格式的PDU包头的第二保留比特位;
位于第一BAP Control PDU格式的PDU包头之外的比特位;
其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
可选地,所述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述扩展的PDU类型域的指示值指示。
可选地,所述扩展的PDU类型域的指示值域为:[0,2 r-1],或者,[2 q,2 q+2 r-1];
其中,r为所述扩展的PDU类型域的比特数,q为所述第一PDU类型域的比特数。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过第二PDU类型域的指示值指示;
其中,所述第二PDU类型域包括所述扩展的PDU类型域的比特位和所述第一PDU类型域的比特位,所述扩展的PDU类型域的比特位与所述第一PDU类型域的比特位不同。
可选地,所述第二PDU类型域的指示值域为:[0,2 i+j-1];
其中,i为所述第一PDU类型域的比特数,j为所述扩展的PDU类型域的比特数。
可选地,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示。
本申请实施例提供的信息传输装置能够实现图5的方法实施例中各个过程,为避免重复,这里不再赘述。
需要说明的是,本申请实施例中的信息传输装置可以是装置,也可以是第一IAB节点中的部件、集成电路、或芯片。
请参见图10,图10是本申请实施例提供的另一种信息传输装置的结构图,如图10所示,信息传输装置1000包括:
接收模块1001,用于从第一IAB节点接收BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
可选地,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
可选地,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
或者
所述第一指示通过所述第一PDU类型域的第一指示值指示。
可选地,所述扩展的PDU类型域包括如下至少一项:
所述第一PDU类型域的比特位;
第一BAP Control PDU格式的PDU包头的第二保留比特位;
位于第一BAP Control PDU格式的PDU包头之外的比特位;
其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
可选地,所述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述扩展的PDU类型域的指示值指示。
可选地,所述扩展的PDU类型域的指示值域为:[0,2r-1],或者,[2q,2q+2r-1];
其中,r为所述扩展的PDU类型域的比特数,q为所述第一PDU类型域的比特数。
可选地,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过第二PDU类型域的指示值指示;
其中,所述第二PDU类型域包括所述扩展的PDU类型域的比特位和所述第一PDU类型域的比特位,所述扩展的PDU类型域的比特位与所述第一PDU类型域的比特位不同。
可选地,所述第二PDU类型域的指示值域为:[0,2i+j-1];
其中,i为所述第一PDU类型域的比特数,j为所述扩展的PDU类型域的比特数。
可选地,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示。
可选地,所述装置还包括:
丢弃模块,用于在所述第二IAB节点不支持通过所述扩展的PDU类型域指示PDU类型的情况下,若所述第一指示指示存在所述扩展的PDU类型域,则丢弃所述BAP Control PDU。
本申请实施例提供的信息传输装置能够实现图8的方法实施例中各个过 程,为避免重复,这里不再赘述。
需要说明的是,本申请实施例中的信息传输装置可以是装置,也可以是第二IAB节点中的部件、集成电路、或芯片。
请参见图11,图11是本申请实施例提供的一种网络设备的结构图,该网络设备1100包括:处理器1101、收发机1102、存储器1103和总线接口,其中:
收发机1102,用于向第二IAB节点发送BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
应理解,本实施例中,上述处理器1101和收发机1102能够实现图5的方法实施例中第一IAB节点实现的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,收发机1102,用于在处理器1101的控制下接收和发送数据,所述收发机1102包括至少两个天线端口。
在图11中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1101代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1102可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,总线接口还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1101负责管理总线架构和通常的处理,存储器1103可以存储处理器1101在执行操作时所使用的数据。
可选地,本申请实施例还提供一种第一IAB节点,包括处理器1101,存储器1103,存储在存储器1103上并可在所述处理器1101上运行的程序或者指令,该程序或者指令被处理器1101执行时实现上述信息传输方法实施例的 各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
请参见图12,图12是本申请实施例提供的一种第二IAB节点的结构图,该第二IAB节点1200包括:处理器1201、收发机1202、存储器1203和总线接口,其中:
收发机1202,用于从第一IAB节点接收BAP Control PDU;
其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
应理解,本实施例中,上述处理器1201和收发机1202能够实现图8的方法实施例中第二IAB节点实现的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,收发机1202,用于在处理器1201的控制下接收和发送数据,所述收发机1202包括至少两个天线端口。
在图12中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1201代表的一个或多个处理器和存储器1203代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1202可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,总线接口还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1201负责管理总线架构和通常的处理,存储器1203可以存储处理器1201在执行操作时所使用的数据。
可选地,本申请实施例还提供一种第二IAB节点,包括处理器1201,存储器1203,存储在存储器1203上并可在所述处理器1201上运行的程序或者指令,该程序或者指令被处理器1201执行时实现上述信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质可以是非易 失的,也可以是易失的,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述第一IAB节点侧的信息传输方法或者第二IAB节点侧的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种计算机程序产品,所述计算机程序产品被存储在非瞬态的存储介质中,所述计算机程序产品被至少一个处理器执行以实现上述第一IAB节点侧的信息传输方法或者第二IAB节点侧的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行网络设备程序或指令,实现上述第一IAB节点侧的信息传输方法或者第二IAB节点侧的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者基站等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (35)

  1. 一种信息传输方法,由第一自回传IAB节点执行,所述方法包括:
    向第二IAB节点发送回传适配协议控制协议数据单元BAP Control PDU;
    其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
  2. 根据权利要求1所述的方法,其中,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
  3. 根据权利要求1所述的方法,其中,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
    或者
    所述第一指示通过所述第一PDU类型域的第一指示值指示。
  4. 根据权利要求1所述的方法,其中,所述扩展的PDU类型域包括如下至少一项:
    所述第一PDU类型域的比特位;
    第一BAP Control PDU格式的PDU包头的第二保留比特位;
    位于第一BAP Control PDU格式的PDU包头之外的比特位;
    其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
  5. 根据权利要求1所述的方法,其中,所述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同。
  6. 根据权利要求1所述的方法,其中,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述扩展的PDU类型域的指示值指示。
  7. 根据权利要求6所述的方法,其中,所述扩展的PDU类型域的指示值域为:[0,2 r-1],或者,[2 q,2 q+2 r-1];
    其中,r为所述扩展的PDU类型域的比特数,q为所述第一PDU类型域的比特数。
  8. 根据权利要求1所述的方法,其中,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过第二PDU类型域的指示值指示;
    其中,所述第二PDU类型域包括所述扩展的PDU类型域的比特位和所述第一PDU类型域的比特位,所述扩展的PDU类型域的比特位与所述第一PDU类型域的比特位不同。
  9. 根据权利要求8所述的方法,其中,所述第二PDU类型域的指示值域为:[0,2 i+j-1];
    其中,i为所述第一PDU类型域的比特数,j为所述扩展的PDU类型域的比特数。
  10. 根据权利要求1所述的方法,其中,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示。
  11. 一种信息传输方法,由第二IAB节点执行,所述方法包括:
    从第一IAB节点接收回传适配协议控制协议数据单元BAP Control PDU;
    其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
  12. 根据权利要求11所述的方法,其中,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
  13. 根据权利要求11所述的方法,其中,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control  PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
    或者
    所述第一指示通过所述第一PDU类型域的第一指示值指示。
  14. 根据权利要求11所述的方法,其中,所述扩展的PDU类型域包括如下至少一项:
    所述第一PDU类型域的比特位;
    第一BAP Control PDU格式的PDU包头的第二保留比特位;
    位于第一BAP Control PDU格式的PDU包头之外的比特位;
    其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
  15. 根据权利要求11所述的方法,其中,所述扩展的PDU类型域的指示值域与所述第一PDU类型域的指示值域不同。
  16. 根据权利要求11所述的方法,其中,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述扩展的PDU类型域的指示值指示。
  17. 根据权利要求16所述的方法,其中,所述扩展的PDU类型域的指示值域为:[0,2 r-1],或者,[2 q,2 q+2 r-1];
    其中,r为所述扩展的PDU类型域的比特数,q为所述第一PDU类型域的比特数。
  18. 根据权利要求11所述的方法,其中,在所述第一指示指示存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过第二PDU类型域的指示值指示;
    其中,所述第二PDU类型域包括所述扩展的PDU类型域的比特位和所述第一PDU类型域的比特位,所述扩展的PDU类型域的比特位与所述第一PDU类型域的比特位不同。
  19. 根据权利要求18所述的方法,其中,所述第二PDU类型域的指示值域为:[0,2 i+j-1];
    其中,i为所述第一PDU类型域的比特数,j为所述扩展的PDU类型域的比特数。
  20. 根据权利要求11所述的方法,其中,在所述第一指示指示不存在所述扩展的PDU类型域的情况下,所述BAP Control PDU的PDU类型通过所述第一PDU类型域的指示值指示。
  21. 根据权利要求11所述的方法,其中,所述方法还包括:
    在所述第二IAB节点不支持通过所述扩展的PDU类型域指示PDU类型的情况下,若所述第一指示指示存在所述扩展的PDU类型域,则丢弃所述BAP Control PDU。
  22. 一种信息传输装置,所述装置包括:
    发送模块,用于向第二IAB节点发送回传适配协议控制协议数据单元BAP Control PDU;
    其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
  23. 根据权利要求22所述的装置,其中,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
  24. 根据权利要求22所述的装置,其中,所述第一指示通过第一BAPControl PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
    或者
    所述第一指示通过所述第一PDU类型域的第一指示值指示。
  25. 根据权利要求22所述的装置,其中,所述扩展的PDU类型域包括如下至少一项:
    所述第一PDU类型域的比特位;
    第一BAP Control PDU格式的PDU包头的第二保留比特位;
    位于第一BAP Control PDU格式的PDU包头之外的比特位;
    其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的 BAP Control PDU格式。
  26. 一种信息传输装置,所述装置包括:
    接收模块,用于从第一IAB节点接收回传适配协议控制协议数据单元BAP Control PDU;
    其中,所述BAP Control PDU的包头包括第一指示,所述第一指示用于指示是否存在扩展的PDU类型域,所述扩展的PDU类型域为扩展第一PDU类型域得到的PDU类型域,所述第一PDU类型域支持指示K种PDU类型,K为正整数。
  27. 根据权利要求26所述的装置,其中,所述扩展的PDU类型域支持指示M种PDU类型,或者,所述扩展的PDU类型域支持指示N种PDU类型,所述N种PDU类型与所述K种PDU类型不同,M和N均为正整数,且M大于K。
  28. 根据权利要求26所述的装置,其中,所述第一指示通过第一BAP Control PDU格式的PDU包头的第一保留比特位指示,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式;
    或者
    所述第一指示通过所述第一PDU类型域的第一指示值指示。
  29. 根据权利要求26所述的装置,其中,所述扩展的PDU类型域包括如下至少一项:
    所述第一PDU类型域的比特位;
    第一BAP Control PDU格式的PDU包头的第二保留比特位;
    位于第一BAP Control PDU格式的PDU包头之外的比特位;
    其中,所述第一BAP Control PDU格式为所述第一PDU类型域对应的BAP Control PDU格式。
  30. 一种第一IAB节点,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至10中任一项所述的信息传输方法中的步骤。
  31. 一种第二IAB节点,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器 执行时实现如权利要求11至21中任一项所述的信息传输方法中的步骤。
  32. 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1至10中任一项所述的信息传输方法的步骤,或者所述程序或指令被处理器执行时实现如权利要求11至21中任一项所述的信息传输方法的步骤。
  33. 一种芯片,包括处理器和通信接口,其中,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1至10中任一项所述的信息传输方法的步骤,或者,实现如权利要求11至21中任一项所述的信息传输方法的步骤。
  34. 一种计算机程序产品,其中,所述计算机程序产品被存储在非瞬态的可读存储介质中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至10中任一项所述的信息传输方法的步骤,或者,所述计算机程序产品被至少一个处理器执行以实现如权利要求11至21中任一项所述的信息传输方法的步骤。
  35. 一种通信设备,被配置为执行如权利要求1至10中任一项所述的信息传输方法的步骤,或者,被配置为执行如权利要求11至21中任一项所述的信息传输方法的步骤。
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