CN116133079A - Data transmission method, device, sending end and receiving end - Google Patents
Data transmission method, device, sending end and receiving end Download PDFInfo
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- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W40/246—Connectivity information discovery
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The application discloses a data transmission method, a data transmission device, a sending end and a receiving end, and relates to the technical field of communication. The data transmission method is applied to a transmitting end and comprises the following steps: a first protocol sub-layer functional body in the first layer protocol sub-layer functional bodies transmits protocol data units PDU to a second protocol sub-layer functional body in the second layer protocol sub-layer functional bodies; the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body. According to the scheme, the PDU carries the identity identifiers, namely the routing information, of the two-party communication, so that the rapid and accurate transmission of the data packet can be ensured.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a data transmission method, a data transmission device, a transmitting end and a receiving end.
Background
In 6G, a Radio Access Network (RAN) (abbreviated as SBA RAN) scheme of a servitization architecture (Service Based Architecture, SBA) is proposed. In the SBA RAN scheme, one User Equipment (UE) may have simultaneously user plane functions (L3 UP)/service data adaptation protocol (Service Data Adaptation Protocol, SDAP)/packet data convergence protocol (Packet Data Convergence Protocol, PDCP)/radio link control (Radio Link Control, RLC) protocol functionalities introduced in multiple layers 3, such as ultra high reliability low latency (Ultra Reliable Low Latency Communications, URLLC) one, enhanced mobile broadband (Enhance Mobile Broadband, eMBB) one, etc.
However, at present, there is no scheme for establishing a route in the PDU interacted by these protocol sublayers of the AS layer, and rapid transmission of the data packet cannot be guaranteed.
Disclosure of Invention
The embodiment of the application provides a data transmission method, a device, a sending end and a receiving end, which can solve the problem that in 6G communication, a scheme of establishing a route in PDUs interacted by protocol sublayers of an AS layer is not established yet, and rapid transmission of a data packet cannot be guaranteed.
In order to solve the above technical problems, an embodiment of the present application provides a data transmission method, applied to a transmitting end, including:
a first protocol sub-layer functional body in the first layer protocol sub-layer functional bodies transmits protocol data units PDU to a second protocol sub-layer functional body in the second layer protocol sub-layer functional bodies;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
Optionally, the first protocol sub-layer functional unit in the first layer protocol sub-layer functional unit sends a protocol data unit PDU to the second protocol sub-layer functional unit in the second layer protocol sub-layer functional unit, including:
And under the condition that the second protocol sub-layer functional body is connected with a plurality of protocol sub-layer functional bodies in the first protocol sub-layer functional body, the first protocol sub-layer functional body transmits the PDU carrying the first identity identification to the second protocol sub-layer functional body.
Optionally, the method further comprises:
each of the second layer protocol sub-layer functionalities records routing information for at least one of the first layer protocol sub-layer functionalities connected to the protocol sub-layer functionalities.
Optionally, the routing information includes:
second identity identification information of a protocol sub-layer functional body in the first layer protocol sub-layer functional body;
third identity identification information of a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
links between protocol sub-layer functional bodies in the second layer protocol sub-layer functional bodies and protocol sub-layer functional bodies in the first layer protocol sub-layer functional bodies and link types of each link;
and a first identity identification of the routing unit between the protocol sub-layer functional body in the first layer protocol sub-layer functional body and the protocol sub-layer functional body in the second layer protocol sub-layer functional body.
Optionally, the link type includes at least one of:
establishing a link of the bearer through configuration of Radio Resource Control (RRC) signaling;
the link of the bearer is not established through configuration of RRC signaling.
Optionally, the first identity identifier satisfies at least one of:
the first identity identification is configured by RRC when the routing unit is established;
the value of the first identity identification mark is the second identity identification information of the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
the value of the first identity identification mark is the mark of the link between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
Optionally, the method further comprises:
acquiring configuration information of an interlayer protocol sub-layer;
wherein the configuration information includes: the corresponding relation between protocol functional bodies of the protocol sublayers and the configuration of the protocol functional bodies of the same protocol sublayer.
Optionally, all protocol functional bodies included in the protocol sub-layer are numbered in a unified manner.
The embodiment of the application also provides a data transmission method, which is applied to the receiving end and comprises the following steps:
analyzing the acquired protocol data unit PDU by a second protocol sub-layer functional body of the second layer protocol sub-layer functional body, and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
the second protocol sub-layer functional body transmits the SDU to the first protocol sub-layer functional body indicated by the first identity identification mark;
wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
The embodiment of the application also provides a data transmission device, which is applied to a transmitting end and comprises:
the first sending module is used for sending the protocol data unit PDU to the second protocol sub-layer functional body of the second layer protocol sub-layer functional body through the first protocol sub-layer functional body in the first layer protocol sub-layer functional bodies;
The PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
The embodiment of the application also provides a transmitting end, which comprises a transceiver and a processor;
the transceiver is used for: transmitting a protocol data unit PDU to a second protocol sub-layer function of the second layer protocol sub-layer function through a first protocol sub-layer function of the first layer protocol sub-layer functions;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
The embodiment of the application also provides a transmitting end, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the steps of the data transmission method when executing the program.
The embodiment of the application also provides a data transmission device, which is applied to a receiving end and comprises:
The analyzing module is used for analyzing the acquired protocol data unit PDU through a second protocol sub-layer functional body of the second layer protocol sub-layer functional body and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
a second transmitting module, configured to transmit, by using the second protocol sublayer functionality, the SDU to the first protocol sublayer functionality indicated by the first identity identification;
wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
The embodiment of the application also provides a receiving end, which comprises a transceiver and a processor;
the processor is configured to: analyzing the acquired protocol data unit PDU through a second protocol sub-layer functional body of the second layer protocol sub-layer functional body, and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
the transceiver is used for: transmitting the SDU to the first protocol sub-layer functional body indicated by the first identity identification through the second protocol sub-layer functional body;
Wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
The embodiment of the application also provides a receiving end, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the steps of the data transmission method when executing the program.
The embodiment of the present application also provides a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the data transmission method described above.
The beneficial effects of this application are:
according to the scheme, the PDU sent to the lower protocol sub-layer functional body by the upper protocol sub-layer functional body carries the first identity identification of the routing unit between the PDU and the lower protocol sub-layer functional body, so that the lower protocol sub-layer functional body can clearly know the source of the PDU, and further, the rapid and accurate transmission of the data packet can be ensured.
Drawings
FIG. 1 is a functional schematic of an AS layer protocol stack of FIG. 6G;
FIG. 2 is a schematic diagram of a 6G flexible protocol stack scheme;
fig. 3 is a flow chart of a data transmission method applied to a transmitting end according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an inter-layer routing cell model;
Fig. 5 is a schematic diagram of a PDU format according to an embodiment of the present application;
FIG. 6 is one of the block diagrams of the data transmission device according to the embodiment of the present application;
fig. 7 shows a structure diagram of a transmitting end according to an embodiment of the present application;
fig. 8 is a flow chart of a data transmission method applied to a receiving end according to an embodiment of the present application;
FIG. 9 is a second block diagram of a data transmission device according to an embodiment of the present disclosure;
fig. 10 shows a structure diagram of a receiving end according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The following description is made in relation to the background art related to the present application.
For the design goal of the very simple Network (Lite Network) of the next generation mobile communication, it is proposed to introduce a User Plane (UP) function in Layer 3 (Layer 3, L3) for data processing.
An UP function (denoted AS L3 UP) is introduced in L3 (layer 3 protocol of the AS layer in a 5G system includes only a radio resource control (Radio Resource Control, RRC) protocol sublayer) of the Access layer (AS). In the 3G/4G/5G system, L3 at the AS layer (AS layer for the terminal side and RRC protocol layer for the network side) has only a Control Plane (CP), i.e. only an RRC protocol layer (or sub-layer), and the RRC protocol layer completes the radio resource Control function.
The new L2 packet processing function (Packet Processing: packet processing) is designed again, and is mainly characterized by bearing upper layer service data, and combining with the channel characteristics of lower layer air interface, forming QoS index and operation with both air interface and service characteristics.
For L3 of the AS layer, an UP function of the newly added L3 processes a packet in addition to a conventional radio resource control (RRC, CP function of the L3). As shown in fig. 1.
The UP of L3 of the AS layer has a transmission function of the IP packet for the first time or more. With the introduction of the UP function of L3, the existing data processing function of L2 needs to be redefined.
The introduction of L3 UP brings new mode of AS layer data processing, and can realize seamless and lossless forward transfer of data when the user moves.
Fig. 2 shows a 6G flexible protocol stack scheme in which there are multiple correspondences between different protocol sublayers, and multiple functional entities may exist at the same time for the same functional protocol sublayers.
In the AS layer, the corresponding relation of the protocol sublayers among the layers is in a many-to-one or one-to-many relation, and the functional bodies of the same protocol stack sublayers are not unique, when data packets, namely protocol data units (Protocol Data Unit, PDU) are transmitted among the layers, the functional bodies of the source and destination protocol sublayers are not unique, and the accurate transmission of the data packets cannot be ensured.
The data transmission method, the device, the transmitting end and the receiving end provided by the embodiment of the application are described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.
As shown in fig. 3, at least one embodiment of the present application provides a data transmission method, which is applied to a transmitting end, and includes:
The PDU carries a first identity identifier of a routing unit between the first protocol sublayer function and the second protocol sublayer function, and it should be noted that, the routing unit between the first protocol sublayer function and the second protocol sublayer function may be understood as a path from the first protocol sublayer function to the second protocol sublayer function, where the first identity identifier refers to an identifier of the path, and optionally may also be referred to as a route identifier (Router ID).
Optionally, the level of the first layer protocol sub-layer functional body is higher than the level of the second layer protocol sub-layer functional body, which can be understood that the first layer protocol sub-layer functional body is an upper layer protocol sub-layer functional body, and the second layer protocol sub-layer functional body is a lower layer protocol sub-layer functional body.
It should be noted that, in the embodiment of the present application, the layer 2 is aimed at the layer 2 of the AS layer, the layer 2 is divided into a plurality of protocol sublayers, each protocol sublayer corresponds to a functional body, SDAP, PDCP, RLC is a functional body, for example, SDAP belongs to protocol sublayer 1, pdcp belongs to protocol sublayer 2, rlc belongs to protocol sublayer 3, for the protocol sublayers 1 and 2, the protocol sublayer 1 is an upper layer, and the protocol sublayer 2 is a lower layer; for the protocol sub-layer 2 and the protocol sub-layer 3, the protocol sub-layer 2 is an upper layer, and the protocol sub-layer 3 is a lower layer; assuming that the protocol sub-layer 1 includes the SDAP1 and the SDAP2, the protocol sub-layer 2 includes the PDCP1 and the PDCP2, and the protocol sub-layer 3 includes the RLC1, the RLC2 and the RLC3, when the SDAP1 transmits a data packet to the PDCP2, a Router ID between the SDAP1 and the PDCP2 needs to be carried in the PDU, and when the PDCP2 transmits a data packet to the RLC3, a Router ID between the PDCP2 and the RLC3 needs to be carried in the PDU.
It should be noted that, by carrying Router ID in PDU sent to the lower protocol sublayer functional body by the upper protocol sublayer functional body, the lower protocol sublayer functional body can clearly know which functional body is acquired from the upper layer, so as to ensure accuracy of data transmission.
Alternatively, step 301 may be implemented as follows:
and under the condition that the second protocol sub-layer functional body is connected with a plurality of protocol sub-layer functional bodies in the first protocol sub-layer functional body, the first protocol sub-layer functional body transmits the PDU carrying the first identity identification to the second protocol sub-layer functional body.
In the case where the upper layer includes a plurality of functional units, it is described that there is a one-to-many relationship between the functional units of the lower layer and the upper layer, and in this case, in order to ensure accuracy of communication, it is necessary to carry a Router ID in the PDU; alternatively, in the case where there is only a one-to-one relationship between the lower layer and the upper layer functional body, it is explained that the communication path from the upper layer to the lower layer is unique, and in this case, in order to save signaling overhead, the Router ID may not be carried in the PDU.
It should be further noted that, in order to ensure that the function of the lower layer can clearly know the specific meaning of the PDU sent by the upper layer, in another embodiment of the present application, the method further includes:
Each of the second layer protocol sub-layer functionalities records routing information for at least one of the first layer protocol sub-layer functionalities connected to the protocol sub-layer functionalities.
In this case, the function of the layer 2 except the uppermost layer needs to record the route information between the function and the upper layer.
It should be noted that, the routing information is used to indicate an inter-layer routing unit, and optionally, as shown in fig. 4, the routing information (i.e. an inter-layer routing unit) includes:
a11, second identity identification information of a protocol sub-layer functional body in the first layer protocol sub-layer functional body;
a12, third identity identification information of a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
it should be noted that all protocol sub-layer functionalities serving the same UE have a uniform identity (e.g., the identity may be a functionality ID). When the protocol sublayer function is established, the RRC signaling of the network side is configured to the UE. The network side integrates a number for protocol sub-layer functions in the UE, such as 0 for RRC,1 for MAC,2 for first SDAP,3 for second SDAP,4 for first PDCP, etc.; protocol layers and numbering within protocol layers may also be employed, such as: 0: l1,1: l2,2: l3; the SDAP in L2 is 0, then 10 identifies the first SDAP,11 identifies the second SDAP,12 identifies the first PDCP, etc.
A13, links between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body and the link type of each link;
it should be noted that, the link between the upper layer and the lower layer is a generic term of all links between the two, for example, data interaction between the SDAP and the PDCP is performed through one or more RBs (Radio bearers), and then all RBs are referred to as links between the SDAP and the PDCP.
Optionally, the link type includes at least one of:
a131, establishing a link of a bearing through configuration of Radio Resource Control (RRC) signaling;
it should be noted that such a link may be regarded as a link with a connection, such as RB, logical Channel, etc., and through the IDs of these bearers, interaction of data between the two can be achieved.
A132, establishing a link of a bearing without configuration of RRC signaling;
it should be noted that, this may be regarded as a connectionless link, for example, in which data packets are interacted with each other by default, in which data interactions are performed by quality of service (QoS) levels, in which data interactions are performed by transport network layers (Transport Network Layer, TNL), or in which other custom manners are performed.
A14, a first identity identification of a routing unit between a protocol sub-layer functional body in the first layer protocol sub-layer functional body and a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
optionally, the first identity identifier satisfies at least one of:
a141, configuring the first identity identification as RRC when the routing unit is established;
that is, the Router ID may be an ID set for any one of the upper and lower link combinations (e.g., the link model of fig. 2), and at the AS layer, all the link combinations are uniformly numbered, and the RRC of the network layer configures the ID for both functions when the link combination is established.
A142, the value of the first identity identification mark is the second identity identification information of the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
a143, the value of the first identity identification mark is the mark of the link between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
for example, when the link type is the connection type, the value is RB ID, and at this time, the Router ID uniformly determines the route through each RB ID and the protocol sub-layer functional bodies at both ends; when the connection type is not available between the network side RRC and the network side RRC, configuring an ID value between the network side RRC and the network side RRC; when both a131 and a132 exist between the two, the network side RRC numbers the connected bearers and the connectionless virtual bearers together, where the connectionless virtual bearers only need to be allocated with one ID value, and there is no need to allocate one ID for each bearer as with the connected bearers.
It should be further noted that, in order to reduce decoding complexity, in another embodiment of the present application, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
That is, in this case, not only the Router ID but also the Router ID is included in the PDU: first indication information; in decoding, the first instruction information may be decoded first, and whether to decode the Router ID may be determined according to the instruction of the first instruction information, so that the decoding rate may be increased.
As shown in fig. 5, the Router ID is placed at the beginning or end of the PDU, and its length may be one byte or more, or may be a non-whole byte, for example, its length is 6bits, 12bits, etc.; first indication information (F field in fig. 5): the length 1bit is used for indicating through PDU (protocol data Unit) along with a path when the link relation between a protocol sub-layer function body and an upper protocol sub-layer function body changes. Such as from a one-to-one connection to a one-to-many connection, or from a one-to-many connection to a one-to-one connection, etc.
Optionally, at least one embodiment of the present application further comprises: acquiring configuration information of an interlayer protocol sub-layer;
Wherein the configuration information includes:
b11, the corresponding relation between protocol functional bodies among protocol sublayers;
specifically, the correspondence is that there is a one-to-many relationship between protocol functional bodies between protocol sublayers.
B12, configuring protocol functional bodies of the same protocol sub-layer;
specifically, the configuration of the protocol functional bodies of the same protocol sub-layer is that the same protocol sub-layer comprises at least one functional body.
Here, for convenience of management of the functional units of the protocol sub-layer, all the protocol functional units included in the protocol sub-layer are numbered in a unified manner.
The specific implementation mode of the application is as follows: when establishing the protocol sub-layer function of the AS layer, the RRC of the network side configures the protocol sub-layers of the network side and the terminal side, and the connection relationship between one protocol sub-layer function and the protocol sub-layer function of the upper layer is changeable (semi-dynamic) through RRC configuration.
At the transmitting end, the PDU built by the upper protocol sub-layer functional body needs to carry Router ID, when the upper protocol sub-layer functional body transmits the PDU to the lower protocol sub-layer functional body (for example, one PDCP is connected with a plurality of SDAPs, when PDCP transmits PDCP PDU to RLC, it needs to carry routing information between PDCP and RLC in PDU), the routing information is encapsulated in PDU, that is, when the upper protocol sub-layer functional body of the lower protocol sub-layer functional body transmits data packet to it, it carries routing information with the data packet. After receiving the PDU, the receiving end peer protocol sub-layer functional body analyzes the PDU to obtain Router ID, then sends SDU to be sent and other information to the upper protocol sub-layer functional body, that is, when the lower protocol sub-layer functional body sends data packet to the upper protocol sub-layer functional body, the routing information of the upper protocol sub-layer functional body is obtained by analysis, and the SDU is sent to the upper protocol sub-layer functional body.
In summary, at least one embodiment of the present application can have the following beneficial effects:
1. breaks through the limitation that the layers in the 5G protocol stack cannot be flexibly selected, and realizes flexible expansion of the protocol stack function;
2. by combining RRC signaling configuration and channel carrying, the overhead is almost 0 (Router ID is carried in PDU) on the basis of ensuring flexibility;
3. the MAC PDU with the routing function is built through the unification of the MAC layer, so that the 0 influence on the physical layer is realized;
4. a protocol stack scheme is set up for the SBA RAN;
5. the method lays a foundation for the definition of wireless slices, namely different slices serving the same UE can have the same or different protocol stack functions through the protocol stack scheme of the method;
6. the foundation is laid for customizing AS layer protocol stack functions according to different service demands in 6G;
7. a protocol stack functional solution is provided for the interaction of data required in the configuration of an AI model or algorithm of an endophytic AI in model training.
As shown in fig. 6, at least one embodiment of the present application further provides a data transmission apparatus 600, applied to a transmitting end, including:
a first transmitting module 601, configured to transmit a protocol data unit PDU to a second protocol sub-layer function of the second layer protocol sub-layer function through a first protocol sub-layer function of the first layer protocol sub-layer functions;
The PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
Optionally, the first sending module 601 is configured to:
and under the condition that the second protocol sub-layer functional body is connected with a plurality of protocol sub-layer functional bodies in the first protocol sub-layer functional body, the first protocol sub-layer functional body transmits the PDU carrying the first identity identification to the second protocol sub-layer functional body.
Optionally, the apparatus further comprises:
and the recording module is used for recording the routing information of at least one protocol sub-layer function body in the first layer protocol sub-layer function body connected with the protocol sub-layer function body through each protocol sub-layer function body in the second layer protocol sub-layer function body.
Optionally, the routing information includes:
second identity identification information of a protocol sub-layer functional body in the first layer protocol sub-layer functional body;
third identity identification information of a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
links between protocol sub-layer functional bodies in the second layer protocol sub-layer functional bodies and protocol sub-layer functional bodies in the first layer protocol sub-layer functional bodies and link types of each link;
And a first identity identification of the routing unit between the protocol sub-layer functional body in the first layer protocol sub-layer functional body and the protocol sub-layer functional body in the second layer protocol sub-layer functional body.
Optionally, the link type includes at least one of:
establishing a link of the bearer through configuration of Radio Resource Control (RRC) signaling;
the link of the bearer is not established through configuration of RRC signaling.
Optionally, the first identity identifier satisfies at least one of:
the first identity identification is configured by RRC when the routing unit is established;
the value of the first identity identification mark is the second identity identification information of the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
the value of the first identity identification mark is the mark of the link between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring configuration information of the interlayer protocol sub-layer;
Wherein the configuration information includes: the corresponding relation between protocol functional bodies of the protocol sublayers and the configuration of the protocol functional bodies of the same protocol sublayer.
Optionally, all protocol functional bodies included in the protocol sub-layer are numbered in a unified manner.
It should be noted that, the data transmission device provided in at least one embodiment of the present application is a device capable of executing the data transmission method, and all embodiments of the method are applicable to the device, and achieve the same or similar beneficial effects.
At least one embodiment of the present application further provides a transmitting end, where the transmitting end includes a transceiver and a processor;
the transceiver is used for: transmitting a protocol data unit PDU to a second protocol sub-layer function of the second layer protocol sub-layer function through a first protocol sub-layer function of the first layer protocol sub-layer functions;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
Optionally, the transceiver is configured to: and under the condition that the second protocol sub-layer functional body is connected with a plurality of protocol sub-layer functional bodies in the first protocol sub-layer functional body, the first protocol sub-layer functional body transmits the PDU carrying the first identity identification to the second protocol sub-layer functional body.
Optionally, the processor is configured to: each of the second layer protocol sub-layer functionalities records routing information for at least one of the first layer protocol sub-layer functionalities connected to the protocol sub-layer functionalities.
Optionally, the routing information includes:
second identity identification information of a protocol sub-layer functional body in the first layer protocol sub-layer functional body;
third identity identification information of a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
links between protocol sub-layer functional bodies in the second layer protocol sub-layer functional bodies and protocol sub-layer functional bodies in the first layer protocol sub-layer functional bodies and link types of each link;
and a first identity identification of the routing unit between the protocol sub-layer functional body in the first layer protocol sub-layer functional body and the protocol sub-layer functional body in the second layer protocol sub-layer functional body.
Optionally, the link type includes at least one of:
establishing a link of the bearer through configuration of Radio Resource Control (RRC) signaling;
the link of the bearer is not established through configuration of RRC signaling.
Optionally, the first identity identifier satisfies at least one of:
The first identity identification is configured by RRC when the routing unit is established;
the value of the first identity identification mark is the second identity identification information of the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
the value of the first identity identification mark is the mark of the link between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
Optionally, the processor is further configured to:
acquiring configuration information of an interlayer protocol sub-layer;
wherein the configuration information includes: the corresponding relation between protocol functional bodies of the protocol sublayers and the configuration of the protocol functional bodies of the same protocol sublayer.
Optionally, all protocol functional bodies included in the protocol sub-layer are numbered in a unified manner.
As shown in fig. 7, the embodiment of the present invention further provides a transmitting end, which includes a processor 700, a transceiver 710, a memory 720, and a program stored in the memory 720 and capable of running on the processor 700; the transceiver 710 is connected to the processor 700 and the memory 720 through a bus interface, where the processor 700 is configured to read a program in the memory, and perform the following procedures:
Transmitting a protocol data unit PDU to a second protocol sub-layer function of the second layer protocol sub-layer function through a first protocol sub-layer function of the first layer protocol sub-layer functions;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
A transceiver 710 for receiving and transmitting data under the control of the processor 700.
Wherein in fig. 7, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 700 and various circuits of memory represented by memory 720, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 730 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
Alternatively, the processor 700 may be a CPU (central processing unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multi-core architecture.
The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.
Optionally, the processor 700 is configured to read the program in the memory, and further perform the following procedure:
and under the condition that the second protocol sub-layer functional body is connected with a plurality of protocol sub-layer functional bodies in the first protocol sub-layer functional body, transmitting the PDU carrying the first identity identification to the second protocol sub-layer functional body through the first protocol sub-layer functional body.
Optionally, the processor 700 is configured to read the program in the memory, and further perform the following procedure:
And recording the routing information of at least one protocol sub-layer functional body in the first layer protocol sub-layer functional body connected with the protocol sub-layer functional body through each protocol sub-layer functional body in the second layer protocol sub-layer functional body.
Optionally, the routing information includes:
second identity identification information of a protocol sub-layer functional body in the first layer protocol sub-layer functional body;
third identity identification information of a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
links between protocol sub-layer functional bodies in the second layer protocol sub-layer functional bodies and protocol sub-layer functional bodies in the first layer protocol sub-layer functional bodies and link types of each link;
and a first identity identification of the routing unit between the protocol sub-layer functional body in the first layer protocol sub-layer functional body and the protocol sub-layer functional body in the second layer protocol sub-layer functional body.
Optionally, the link type includes at least one of:
establishing a link of the bearer through configuration of Radio Resource Control (RRC) signaling;
the link of the bearer is not established through configuration of RRC signaling.
Optionally, the first identity identifier satisfies at least one of:
the first identity identification is configured by RRC when the routing unit is established;
The value of the first identity identification mark is the second identity identification information of the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
the value of the first identity identification mark is the mark of the link between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
Optionally, the processor 700 is configured to read the program in the memory, and further perform the following procedure:
acquiring configuration information of an interlayer protocol sub-layer;
wherein the configuration information includes: the corresponding relation between protocol functional bodies of the protocol sublayers and the configuration of the protocol functional bodies of the same protocol sublayer.
Optionally, all protocol functional bodies included in the protocol sub-layer are numbered in a unified manner.
At least one embodiment of the present application further provides a transmitting end, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements each process in the data transmission method embodiment applied to the transmitting end when executing the program, and the same technical effects can be achieved, so that repetition is avoided, and no redundant description is provided herein.
At least one embodiment of the present application further provides a computer readable storage medium, on which a computer program is stored, where the program when executed by a processor implements each process in the data transmission method embodiment applied to a transmitting end as described above, and the same technical effects can be achieved, and for avoiding repetition, a description is omitted herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
Corresponding to the implementation of the transmitting end side, as shown in fig. 8, at least one embodiment of the present application provides a data transmission method, applied to the receiving end, including:
step 802, the second protocol sub-layer functional body sends the SDU to the first protocol sub-layer functional body indicated by the first identity identification;
Wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
It should be noted that, in the above embodiments, all descriptions about the receiving end are applicable to the embodiments of the data transmission method, and the same technical effects as those of the embodiments can be achieved.
As shown in fig. 9, at least one embodiment of the present application further provides a data transmission apparatus 900, applied to a receiving end, including:
the parsing module 901 is configured to parse the acquired protocol data unit PDU through a second protocol sublayer function of the second layer protocol sublayer function, and acquire a service data unit SDU and a first identity identification of a routing unit between a first protocol sublayer function of the first layer protocol sublayer function and the second protocol sublayer function;
a second transmitting module 902, configured to transmit, by using the second protocol sublayer functionality, the SDU to the first protocol sublayer functionality indicated by the first identity identification;
Wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
It should be noted that, the apparatus provided in at least one embodiment of the present application is an apparatus capable of executing the data transmission method, and all embodiments of the data transmission method are applicable to the apparatus, and achieve the same or similar beneficial effects.
At least one embodiment of the present application also provides a receiving end, where the receiving end includes a transceiver and a processor;
the processor is configured to: analyzing the acquired protocol data unit PDU through a second protocol sub-layer functional body of the second layer protocol sub-layer functional body, and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
the transceiver is used for: transmitting the SDU to the first protocol sub-layer functional body indicated by the first identity identification through the second protocol sub-layer functional body;
Wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
As shown in fig. 10, the embodiment of the present invention further provides a receiving end, which includes a processor 1000, a transceiver 1010, a memory 1020, and a program stored in the memory 1020 and capable of running on the processor 1000; the transceiver 1010 is connected to the processor 1000 and the memory 1020 through a bus interface, where the processor 1000 is configured to read a program in the memory, and perform the following procedures:
analyzing the acquired protocol data unit PDU through a second protocol sub-layer functional body of the second layer protocol sub-layer functional body, and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
transmitting the SDU to the first protocol sub-layer functional body indicated by the first identity identification through the second protocol sub-layer functional body;
Wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
A transceiver 1010 for receiving and transmitting data under the control of the processor 1000.
Wherein in fig. 10, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1000 and various circuits of the memory, represented by the memory 1020, are chained together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1000 may store data used by the processor 1000 in performing operations.
Optionally, the PDU further includes: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
At least one embodiment of the present application further provides a receiving end, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements each process in the data transmission method embodiment applied to the receiving end when executing the program, and the process can achieve the same technical effect, so that repetition is avoided, and no redundant description is provided herein.
At least one embodiment of the present application further provides a computer readable storage medium, on which a computer program is stored, where the program when executed by a processor implements each process in the data transmission method embodiment applied to a receiving end as described above, and the same technical effects can be achieved, and for avoiding repetition, a description is omitted herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (18)
1. A data transmission method applied to a transmitting end, comprising:
a first protocol sub-layer functional body in the first layer protocol sub-layer functional bodies transmits protocol data units PDU to a second protocol sub-layer functional body in the second layer protocol sub-layer functional bodies;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
2. The method of claim 1, wherein a first protocol sub-layer function of the first layer protocol sub-layer functions sends protocol data units PDUs to a second protocol sub-layer function of the second layer protocol sub-layer functions, comprising:
and under the condition that the second protocol sub-layer functional body is connected with a plurality of protocol sub-layer functional bodies in the first protocol sub-layer functional body, the first protocol sub-layer functional body transmits the PDU carrying the first identity identification to the second protocol sub-layer functional body.
3. The method as recited in claim 1, further comprising:
each of the second layer protocol sub-layer functionalities records routing information for at least one of the first layer protocol sub-layer functionalities connected to the protocol sub-layer functionalities.
4. A method according to claim 3, wherein the routing information comprises:
second identity identification information of a protocol sub-layer functional body in the first layer protocol sub-layer functional body;
third identity identification information of a protocol sub-layer functional body in the second layer protocol sub-layer functional body;
links between protocol sub-layer functional bodies in the second layer protocol sub-layer functional bodies and protocol sub-layer functional bodies in the first layer protocol sub-layer functional bodies and link types of each link;
and a first identity identification of the routing unit between the protocol sub-layer functional body in the first layer protocol sub-layer functional body and the protocol sub-layer functional body in the second layer protocol sub-layer functional body.
5. The method of claim 4, wherein the link type comprises at least one of:
establishing a link of the bearer through configuration of Radio Resource Control (RRC) signaling;
the link of the bearer is not established through configuration of RRC signaling.
6. The method of claim 4, wherein the first identity identification satisfies at least one of:
the first identity identification is configured by RRC when the routing unit is established;
the value of the first identity identification mark is the second identity identification information of the protocol sub-layer functional body in the first layer protocol sub-layer functional body;
The value of the first identity identification mark is the mark of the link between the protocol sub-layer functional body in the second layer protocol sub-layer functional body and the protocol sub-layer functional body in the first layer protocol sub-layer functional body.
7. The method of claim 1, wherein the PDU further comprises: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
8. The method as recited in claim 1, further comprising:
acquiring configuration information of an interlayer protocol sub-layer;
wherein the configuration information includes: the corresponding relation between protocol functional bodies of the protocol sublayers and the configuration of the protocol functional bodies of the same protocol sublayer.
9. The method of claim 8, wherein all protocol functions included in the protocol sub-layer are numbered in unison.
10. A data transmission method applied to a receiving end, comprising:
analyzing the acquired protocol data unit PDU by a second protocol sub-layer functional body of the second layer protocol sub-layer functional body, and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
The second protocol sub-layer functional body transmits the SDU to the first protocol sub-layer functional body indicated by the first identity identification mark;
wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
11. The method of claim 10, wherein the PDU further comprises: first indication information;
the first indication information is used for indicating whether the PDU carries the first identity identification or not.
12. A data transmission device applied to a transmitting end, comprising:
the first sending module is used for sending the protocol data unit PDU to the second protocol sub-layer functional body of the second layer protocol sub-layer functional body through the first protocol sub-layer functional body in the first layer protocol sub-layer functional bodies;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
13. A transmitting terminal, comprising a transceiver and a processor;
The transceiver is used for: transmitting a protocol data unit PDU to a second protocol sub-layer function of the second layer protocol sub-layer function through a first protocol sub-layer function of the first layer protocol sub-layer functions;
the PDU carries a first identity identification of a routing unit between the first protocol sub-layer functional body and the second protocol sub-layer functional body, and the hierarchy of the first protocol sub-layer functional body is higher than that of the second protocol sub-layer functional body.
14. A transmitting terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the data transmission method according to any one of claims 1-9 when the program is executed.
15. A data transmission device applied to a receiving end, comprising:
the analyzing module is used for analyzing the acquired protocol data unit PDU through a second protocol sub-layer functional body of the second layer protocol sub-layer functional body and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
A second transmitting module, configured to transmit, by using the second protocol sublayer functionality, the SDU to the first protocol sublayer functionality indicated by the first identity identification;
wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
16. A receiving terminal comprising a transceiver and a processor;
the processor is configured to: analyzing the acquired protocol data unit PDU through a second protocol sub-layer functional body of the second layer protocol sub-layer functional body, and acquiring a service data unit SDU and a first identity identification of a routing unit between a first protocol sub-layer functional body of the first layer protocol sub-layer functional body and the second protocol sub-layer functional body;
the transceiver is used for: transmitting the SDU to the first protocol sub-layer functional body indicated by the first identity identification through the second protocol sub-layer functional body;
wherein the hierarchy of the first layer protocol sub-layer functionality is higher than the hierarchy of the second layer protocol sub-layer functionality.
17. A receiving end comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the data transmission method according to any one of claims 10 or 11 when the program is executed.
18. A readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, realizes the steps in the data transmission method according to any one of claims 1-11.
Priority Applications (2)
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|---|---|---|---|
| CN202111340497.8A CN116133079A (en) | 2021-11-12 | 2021-11-12 | Data transmission method, device, sending end and receiving end |
| PCT/CN2022/131387 WO2023083305A1 (en) | 2021-11-12 | 2022-11-11 | Data transmission method and apparatus, and sending end and receiving end |
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| CN202111340497.8A CN116133079A (en) | 2021-11-12 | 2021-11-12 | Data transmission method, device, sending end and receiving end |
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| CN108809590B (en) * | 2017-05-05 | 2019-10-15 | 中国移动通信有限公司研究院 | A kind of data transmission method and new access sub-layer entities |
| CN110121193B (en) * | 2018-02-06 | 2022-07-22 | 中国移动通信有限公司研究院 | Interlayer data transmission method, device, medium and equipment |
| US11350305B2 (en) * | 2019-01-09 | 2022-05-31 | Samsung Electronics Co., Ltd. | Method and apparatus for processing data in wireless communication system |
| EP3925173B1 (en) * | 2019-02-14 | 2022-08-10 | Telefonaktiebolaget LM Ericsson (publ) | A central unit (cu), a distributed unit (du) and methods therein for forwarding of data in an integrated access backhaul (iab) network |
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