CN110536352A - Information configuration and resource preliminery application method, apparatus, node and storage medium - Google Patents

Abstract

The embodiment of the present invention provides an information configuration and resource pre-application method, device, node, and storage medium, which can configure the IAB nodes in the IAB network through information configuration instructions; when the IAB node detects that the pre-application conditions for uplink resources are met, Generate an uplink resource pre-application request, which includes a pre-sent buffer status report; the IAB node sends the uplink resource pre-application request to its corresponding parent IAB node to request the parent IAB node to pre-allocate corresponding Uplink resources, that is, IAB nodes can obtain uplink resources in advance, so that when they have uplink data to send, they can directly use the pre-applied uplink resources to send, thereby reducing the uplink scheduling delay of IAB nodes, improving communication efficiency and user experience.

Description

Information configuration and resource pre-application method, device, node and storage medium

technical field

The present invention relates to the field of communication technology, in particular to an information configuration and resource pre-application method, device, node and storage medium.

Background technique

As the fifth-generation mobile communication network, 5G network has a peak theoretical transmission speed of tens of Gb per second, which is hundreds of times faster than that of 4G network. The reason why 5G can achieve high transmission speed is the use of millimeter waves. Millimeter waves refer to electromagnetic waves with wavelengths on the order of millimeters, and their frequencies are between 30 GHz and 300 GHz. One of the characteristics of the millimeter wave frequency band is that it has a large attenuation in the air and a weak diffraction ability. For this reason, an integrated access and backhaul link (IAB) technology is proposed. Through wireless backhaul links and relay links, dense NR cell networks can be deployed more flexibly without correspondingly increasing the dense deployment of transmission networks. An example of a network where IAB is deployed is shown in Figure 1, where 1, 2, and 3 are nodes, and there is a wired connection between node 1 and the core network, and access nodes 2 and 3 send and receive data to the core network through node 1. A user equipment (User Equipment, UE) may access access nodes 1, 2, and 3 through an access link, and data may be transmitted between the access nodes through a wireless backhaul link. The access nodes that support wireless access in the IAB network and wirelessly return data are called IAB nodes (IAB nodes), for example, access nodes 2 and 3 in FIG. 1 . The access node that provides the wireless backhaul function for the IAB node so that the UE is connected to the core network is called an IAB donor (IAB donor), such as the access node 1 in FIG. 1 . For example, for the uplink, the access node 2 can send the data received from the UE to the access node 1 through the wireless backhaul link, and then the access node 1 sends the UE data to the network element of the core network. For the downlink, the core network element can send the UE data packet to the access node 1, and then the access node 1 sends the UE data to the access node 2 through the wireless backhaul link, and the access node 2 sends the UE data packet to the access node through the access link. Data is sent to UE.

In addition, supporting CU (Centralized Unit, centralized network element)/DU (Distributed Unit, distributed network element) separate deployment is an important technical feature in NR (New Radio), so it also needs to be deployed in CU/DU separate deployment scenarios Support IAB function. Figure 2 is a schematic diagram of an IAB deployment scenario where CU/DU is separated. As shown in FIG. 2 , the IAB node 1 may have a function similar to a DU and a function similar to an MT (Mobile Terminal, mobile terminal), wherein the MT is also a function similar to a UE. An IAB node accesses two parent IAB nodes through dual connections.

For the uplink scheduling process of the IAB node, please refer to Figure 3. The scheduling process completed by the IAB node includes: when the IAB node has uplink data to be sent, it sends a scheduling request (Scheduling Request, SR) to its upper node to apply for uplink resources , and then use the applied uplink resource UL grant to send a buffer status report (Buffer StatusReport, BSR) to apply for uplink resources for sending uplink data. For a scenario with multiple transit nodes as shown in Figure 2, if each IAB node goes through a complete uplink scheduling process, there will be a large delay in the total uplink scheduling.

Contents of the invention

The information configuration and resource pre-application method, device, node and storage medium provided by the embodiments of the present invention solve the problem of large uplink scheduling delay of IAB nodes in the IAB network.

In order to solve the above technical problems, an embodiment of the present invention provides a resource pre-application method in a self-access and backhaul IAB network, including:

When the IAB node detects that the pre-application conditions for uplink resources are satisfied, it generates an uplink resource pre-application request, and the uplink resource pre-application request includes a pre-sent buffer status report;

The IAB node sends the uplink resource pre-application request to its corresponding parent IAB node, so as to request the parent IAB node to pre-allocate corresponding uplink resources for it.

In order to solve the above technical problems, the embodiment of the present invention also provides a method for configuring information in an IAB network, including:

Sending an information configuration instruction to the IAB node, the information configuration instruction including at least one of the following information:

Preset data type, first hop threshold, second hop threshold, third hop threshold, first priority threshold, second priority threshold, pre-application cache threshold, occupied cache threshold, LCG of IAB node and its child The mapping relationship between the LCGs of the IAB nodes, the pre-allocated uplink resource ratio value, the IAB node routing table, the uplink data volume threshold, the priority and/or weight of the preset cost measurement parameters of the IAB node, the first pre-application split ratio, The first maximum cache threshold, the uplink sending indication parameter, the first master maximum cache threshold, the first auxiliary maximum cache threshold, the weight threshold, the second master maximum cache threshold, the second auxiliary maximum cache threshold, and the second pre-application split ratio , the second maximum cache threshold.

In order to solve the above technical problems, the embodiment of the present invention also provides a resource pre-application device in an IAB network, which is applied to an IAB node, including:

A trigger processing module, configured to generate an uplink resource pre-application request when detecting that the uplink resource pre-application condition is satisfied, and the uplink resource pre-application request includes a pre-sent buffer status report;

The pre-application module is configured to send the uplink resource pre-application request to the parent IAB node corresponding to the IAB node, so as to request the parent IAB node to pre-allocate corresponding uplink resources for the IAB node.

In order to solve the above technical problems, an embodiment of the present invention also provides an information configuration device in an IAB network, which is applied to an IAB host, including:

An information configuration module, configured to send an information configuration instruction to the IAB node, the information configuration instruction including at least one of the following information:

Preset data type, first hop threshold, second hop threshold, third hop threshold, first priority threshold, second priority threshold, pre-application cache threshold, occupied cache threshold, LCG of IAB node and its child The mapping relationship between the LCGs of the IAB nodes, the pre-allocated uplink resource ratio value, the IAB node routing table, the uplink data volume threshold, the priority and/or weight of the preset cost measurement parameters of the IAB node, the first pre-application split ratio, The first maximum cache threshold, the uplink sending indication parameter, the first master maximum cache threshold, the first auxiliary maximum cache threshold, the weight threshold, the second master maximum cache threshold, the second auxiliary maximum cache threshold, and the second pre-application split ratio , the second maximum cache threshold.

In order to solve the above technical problems, an embodiment of the present invention also provides an IAB node, including a first processor, a first memory, and a first communication bus;

The first communication bus is used to connect the first processor and the first memory;

The first processor is configured to execute the first computer program stored in the first memory, so as to realize the steps of the resource pre-application method in the IAB network as described above.

In order to solve the above technical problems, an embodiment of the present invention also provides an IAB host, including a second processor, a second memory, and a second communication bus;

The second communication bus is used to connect the second processor and a second memory;

The second processor is configured to execute the second computer program stored in the second memory, so as to realize the steps of the method for configuring information in the IAB network as described above.

In order to solve the above technical problems, an embodiment of the present invention also provides a computer-readable storage medium, which is characterized in that the computer-readable storage medium stores one or more first computer programs, and the one or more first computer programs A computer program can be executed by one or more processors, so as to realize the steps of the resource pre-application method in the IAB network as described above;

or,

The computer-readable storage medium stores one or more second computer programs, and the one or more second computer programs can be executed by one or more processors to implement the information configuration method in the IAB network as described above A step of.

According to the information configuration and resource pre-application method, device, node, and storage medium provided by the embodiments of the present invention, the IAB nodes in the IAB network can be configured through information configuration instructions; when the IAB node detects that the pre-application conditions for uplink resources are met, Generate an uplink resource pre-application request, which includes a pre-sent buffer status report; the IAB node sends the uplink resource pre-application request to its corresponding parent IAB node to request the parent IAB node to pre-allocate corresponding Uplink resources, that is, IAB nodes can obtain uplink resources in advance, so that when they have uplink data to send, they can directly use the pre-applied uplink resources to send, thereby reducing the uplink scheduling delay of IAB nodes, improving communication efficiency and user experience.

Other features and corresponding beneficial effects of the present invention are explained in the following part of the specification, and it should be understood that at least part of the beneficial effects become obvious from the description in the specification of the present invention.

Description of drawings

Fig. 1 is a kind of schematic diagram of IAB network networking;

Figure 2 is a schematic diagram of an IAB deployment scenario;

Fig. 3 is a schematic diagram of an IAB node uplink scheduling process;

FIG. 4 is a schematic flow chart of a resource pre-application method in an IAB network according to Embodiment 1 of the present invention;

FIG. 5 is a first schematic diagram of a MAC CE format in Embodiment 3 of the present invention;

FIG. 6 is a second schematic diagram of a MAC CE format in Embodiment 3 of the present invention;

FIG. 7 is a schematic diagram 3 of a MAC CE format according to Embodiment 3 of the present invention;

FIG. 8 is a schematic structural diagram of a resource pre-application device in an IAB network according to Embodiment 5 of the present invention;

FIG. 9 is a schematic structural diagram of an information configuration device in an IAB network according to Embodiment 5 of the present invention;

FIG. 10 is a schematic diagram of the IAB node structure of Embodiment 6 of the present invention;

Fig. 11 is a schematic diagram of the structure of the IAB host in Example 6 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below through specific implementation manners in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Embodiment one:

This embodiment provides a method for implementing uplink resource pre-application in an IAB network element, thereby reducing the uplink scheduling delay of the IAB node, improving communication efficiency and user experience, as shown in FIG. 4 , which includes:

S401: When an IAB node (IAB node) detects that a pre-application condition for an uplink resource is met, it generates an uplink resource pre-application request, and the uplink resource pre-application request includes a pre-sent buffer status report.

In this embodiment, the pre-sent buffer status report Pre-BSR may be used for representation, but it should be understood that the specific representation abbreviation manner may be flexibly changed.

Optionally, in this embodiment, the IAB node can have at least one of DU-like functions and MT (Mobile Terminal, mobile terminal) similar functions, that is, the IAB nodes in this embodiment can include IAB node DU and IAB node MT at least one of the

In this embodiment, the IAB node that accesses the IAB node in S401 is called a child IAB node (that is, child IABnode), and the IAB node that the IAB node in S401 accesses is called a parent IAB node (that is, parent IAB node ). Therefore, it should be understood that the IAB node here in this embodiment may be a parent IAB node of a certain child IAB node, or may be a child IAB node of a certain parent IAB node.

In this embodiment, when a certain IAB node is connected to the UE, it can be called an accessing IAB node (ie accessing IAB node) relative to the UE. When the MT of a certain IAB node generates its own data, its parent An IAB node may also be referred to as an access IAB node.

Optionally, in this embodiment, the DUs of each IAB node may all belong to the CU of the IAB host. The CU hosting the IAB can configure the IAB nodes accordingly by sending information configuration instructions to the DU or MT corresponding to each IAB node. For example, in one example, the information configuration instruction may include but not limited to at least one of the following information:

Preset data type, the first hop threshold, the second hop threshold, the third hop threshold, the first priority threshold, the second priority threshold, whether the pre-sent buffer status report forwards the indication information; pre-apply for cache Threshold, occupied cache threshold, mapping relationship between the LCG of the IAB node and the LCG of its child IAB nodes, the ratio of pre-allocated uplink resources, the routing table of the IAB node, the threshold of uplink data volume, the priority of the preset cost measurement parameters of the IAB node And/or weight, the first pre-application split ratio, the first maximum cache threshold, the uplink transmission indication parameter, the first master maximum cache threshold, the first auxiliary maximum cache threshold, the weight threshold, the second master maximum cache threshold, the second Two auxiliary maximum cache thresholds, a second pre-application split ratio, and a second maximum cache threshold.

And it should be understood that the above information, parameters or thresholds may be sent through one information configuration instruction or multiple information configuration instructions according to requirements.

S402: The IAB node sends the generated uplink resource pre-application request to its corresponding parent IAB node, so as to request the parent IAB node to pre-allocate corresponding uplink resources for it.

In this embodiment, when the IAB node in S401 is the first IAB node, its detection of whether the pre-application condition for uplink resources is satisfied may include:

After the first IAB node receives the uplink data from the UE or after the child IAB node generates the uplink data or receives the buffer status report from the UE or the child IAB node, it determines whether the pre-application condition for the uplink resource is based on at least one of the following Satisfy:

Determine whether the pre-application condition for uplink resources is met according to whether its own Logical Channel Group (Logical Channel Group, LCG) is configured to support a pre-sent buffer status report;

For example, in one example, when the hop count between the first IAB node and the IAB host is less than the first hop count threshold, among the LCGs of the first IAB node, the LCG with a priority higher than the first priority threshold is configured To support pre-sent buffer status reporting;

and / or,

When the hop count between the first IAB node and the IAB host is greater than or equal to the second hop count threshold, all LCGs of the first IAB node are configured to support pre-sent buffer status reports.

The specific values of the first hop threshold and the second hop threshold can be flexibly set, and the first hop threshold can be equal to or different from the second hop threshold. For example, both the first hop count threshold and the second hop count threshold can be set to 2, 3, or 4, and so on.

Whether the uplink resource pre-application condition is satisfied is determined according to whether the received uplink data from the UE or the uplink data generated by the child IAB node is a preset data type.

For example, in one example, the preset data type may include but not limited to at least one of the following:

Control plane data; user plane data that is latency sensitive; data whose hop count to the IAB host is greater than or equal to the third hop count threshold. The specific value of the third hop count threshold can also be flexibly set, and can be equal to or different from the first hop count threshold and/or the second hop count threshold.

For example, in an application scenario, the first IAB node may be an access IAB node, and after the UE or the IAB nodeMT generates an uplink data packet, it may apply for an uplink resource by sending a BSR. For accessing IAB nodes, the specific processing can be done as follows:

Optionally, if the number of hops between the access IAB node and the IAB donor is small (for example, less than the first hop threshold), the CU has a higher priority in the access IAB node MT (for example, the priority is higher than the first priority threshold) to configure Pre-BSR for LCGs; if the number of hops between the access IAB node and the IAB donor is large (for example, greater than or equal to the second hop threshold), the CU configures Pre-BSR for all LCGs in the access IAB node MT. After the access IAB node receives the BSR, it can judge whether to trigger the Pre-BSR according to the configuration of the CU.

Optionally, if the CU is configured to access the IAB node, it only configures Pre-BSR for the control plane data, latency sensitive user plane data, and data that can reach the IAB donor after a large number of hops (greater than or equal to the third hop count threshold). Thus, when the access IAB node receives the uplink data packet generated by the UE or the IAB node MT, it judges whether to trigger the Pre-BSR according to the configuration of the CU. In this embodiment, the Pre-BSR at this time may only be sent to the next-level IAB node (upstream IAB node) (that is, the parent IAB node) in the Pre-BSR MAC CE format to notify the upstream IAB node that it can be the Data packets pre-apply for uplink resources.

In this embodiment, when the IAB node in S401 is the second IAB node, its detection of whether the pre-application condition for uplink resources is satisfied may include:

After receiving the pre-sent buffer status report sent by the child IAB node, the second IAB node determines whether the pre-application condition for uplink resources is met according to at least one of the following:

When the buffer status report currently configured as pre-sent is not forwarded, it is determined that the pre-application conditions for uplink resources are not met;

When the current configuration is to forward the pre-sent buffer status report according to the uplink resource allocated for the child IAB node, it is determined that the pre-application condition for the uplink resource is satisfied;

If the buffer size buffer size reported by the received pre-sent buffer status report is greater than the pre-application buffer threshold (Pre-BSRbufferthreshold), and the current occupied buffer size of itself is greater than the occupied buffer threshold (BSRbufferthreshold), determine the pre-requested buffer threshold for uplink resources. The application conditions are met;

If the priority of the LCG reporting the pre-sent buffer status report is higher than the second priority threshold, it is determined that the pre-application condition for uplink resources is met.

For example, in an application scenario, the second IAB node may be a parent IAB node (Parent IAB node). In this application scenario, after the parent IAB node receives the Pre-BSR, it may decide whether to forward the Pre-BSR to Its own parent IAB node (that is, the grandparent IAB node), for example:

Optionally, the parent IAB node does not forward the Pre-BSR;

Optionally, the parent IAB node constructs a Pre-BSR based on resources allocated to its child IAB node, and reports it to the grandparent IAB node;

Optionally, the CU may configure the occupied buffer threshold bufferthreshold and the pre-apply buffer threshold Pre-BSR bufferthreshold for the IAB node. If the buffer size reported by the Pre-BSR is greater than the Pre-BSR bufferthreshold, and the parent node buffer size is greater than the bufferthreshold, the parent node builds a Pre-BSR based on the resources allocated to its child IAB node, and reports it to the grandparent IAB node;

Optionally, when the priority of the LCG reporting the Pre-BSR is higher (for example, higher than the second priority threshold), the parent IAB node can construct the Pre-BSR based on the resources that can be allocated by its child IAB node , and report it to the grandparent IAB node.

In this embodiment, the generation of the uplink resource pre-application request by the IAB node in S401 includes:

Determining the LCG for reporting the pre-sent buffer status report includes but is not limited to at least one of the following methods:

Determined according to the mapping relationship between the LCG of the IAB node and the LCG of its child IAB nodes;

When the IAB node receives the pre-sent buffer status report reported by its sub-IAB node, it determines the logical channel LCH with data transmission in the LCG used by its sub-IAB node to report the pre-sent buffer status report, for example, in a In an example, it may include determining according to at least one of the following methods:

The LCG of the IAB node deduced from the LCH with the highest priority of data transmission in the LCG used by the child IAB node to report the pre-sent buffer status report is used as the LCG of the pre-sent buffer status report reported by the IAB node;

According to the LCG of the IAB node inferred from the LCG used by the child IAB node to report the pre-sent buffer status report, the LCH with the priority of data transmission is in the middle, as the LCG of the pre-sent buffer status report reported by the IAB node;

Determine the LCHs in the LCG used by the child IAB node to report the Pre-BSR with data transmission. When the IAB node reports the short Pre-BSR MAC CE, determine the LCG with the highest priority among the LCGs where the LCHs are located as the IAB node reports the Pre-BSR - LCG of BSR; when the IAB node reports long truncated Pre-BSR MAC CE, determine the LCG where each LCH is located as the LCG of the IAB node reporting Pre-BSR, and each LCG equally shares the amount of virtual data to be reported; when the IAB node reports The longPre-BSR MAC CE determines the LCG that reports the Pre-BSR as the IAB node among the LCGs of the IAB node, and each LCG equally divides the amount of virtual data to be reported.

For example, in an application scenario, the LCG for reporting the pre-sent buffer status report is determined according to the mapping relationship between the LCG of the IAB node and the LCGs of its child IAB nodes. Optionally, the CU can configure the mapping relationship between the child IAB node LCG and the IAB nodeLCG. The IAB node triggers Pre-BSR based on the mapped LCG.

In this application scenario, the Pre-BSR supported by the IAB node includes but is not limited to at least one of the following: regular Regular Pre-BSR, padding Pre-BSR, and periodic Periodic Pre-BSR. Among them, the triggering of the three Pre-BSR The conditions are shown in Table 1.

Table 1

In this application scenario, when the IAB node reports the Pre-BSR next time, for the Pre-BSR triggered by the timeout of the retxPreBSR-Timer, the LCG that reports the Pre-BSR is set to have the highest priority.

Optionally, in another application scenario of this embodiment, the IAB node determines the LCH that triggers the Pre-BSR, and reports the Pre-BSR based on the LCG where the LCH is located, which may include but not limited to any of the following:

Solution 1: When the sub-IAB node reports the Pre-BSR, it carries the LCID of the LCH with the highest priority for data transmission in the reported LCG;

Scheme 2: When the sub-IAB node reports the Pre-BSR, it carries the LCID of the LCH with the middle priority (that is, in the middle) of the reported LCG that has data transmission;

Solution 3: When the child IAB node reports the Pre-BSR, it carries the LCID of all LCHs that have data to send in the reported LCG, and finds the corresponding egress RLC (Radio Link Control, radio link layer control protocol) channels according to the LCID. In view of these The egress RLC channels may correspond to different LCGs, which can be set:

If the IAB node reports short Pre-BSR MAC CE, apply for all pre-resources based on the LCG with the highest priority;

If the IAB node reports long truncated Pre-BSR MAC CE, the virtual data volume to be applied for is evenly distributed to the LCG that can be reported;

If the IAB node reports the long Pre-BSR MAC CE, the virtual data volume to be applied is evenly distributed to each LCG for reporting.

In this application scenario, Pre-BSR can also support but not limited to at least one of the following three types: Pre-BSR: Regular Pre-BSR, Padding Pre-BSR, Periodic Pre-BSR, triggering of three Pre-BSRs The conditions are shown in Table 2 below.

Table 2

In this application scenario, when the IAB node reports the Pre-BSR next time, for the Pre-BSR triggered by the timeout of the retxPreBSR-Timer, the LCH that triggers the Pre-BSR can be set to have the highest priority.

In this embodiment, after the IAB node in S401 allocates uplink resources to its sub-IAB nodes or UEs, it also includes filling the allocated data volume into corresponding virtual cache buffers.

In some application scenarios, due to data packet retransmission, or delay-sensitive data packets may be discarded in the adaptationlayer, or RLF (Radio Link Failure, wireless link failure) occurs in the sub-IAB node, etc., the actual uplink required by the IAB node Resources are often smaller than uplink resources that need to be pre-applied. To avoid resource waste, the CU can issue a pre-allocated uplink resource ratio value (ul-PreResourceRatio) to the IABnode. The amount of data allocated by the IAB node is equal to the actual amount of allocated data times the pre-allocated The ratio value of allocated uplink resources, wherein the ratio value of pre-allocated uplink resources is generally less than or equal to 1, and its specific value can be flexibly set according to specific application scenarios.

Optionally, in an example, for each child IAB node or UE, the MT of the IAB node may maintain a virtual buffer for each LCG/LCH. If RLF occurs in the child IAB node or UE, clear the virtual buffer corresponding to the child IAB node or UE; if the parent IAB node has allocated pre-applied resources, subtract the data volume of the virtual buffer; if the child IAB node or UE data The volume has been reached, and the corresponding data volume in the virtual buffer is subtracted.

Optionally, in another example, the IAB node MT maintains a virtual buffer for each LCG/LCH. If RLF occurs in a child node/UE or the parent node has allocated pre-resources, the data volume in the virtual buffer is subtracted; if the data of the child node/UE has arrived, the corresponding data volume in the virtual buffer is subtracted.

The IAB node in this embodiment can apply for the corresponding uplink resource from the corresponding parent IAB node in advance through the Pre-BSR mechanism, so that when it has uplink data to send, it can directly use the pre-applied uplink resource to send, thereby reducing the IAB The uplink scheduling delay of nodes improves communication efficiency and user experience.

Embodiment two:

In order to facilitate understanding, this embodiment is further illustrated in addition to the contents exemplified in the foregoing embodiments.

In this embodiment, the uplink resource pre-application request generated by the IAB node can be sent in a MAC-CE format, but not limited to. And in this embodiment, it may be sent by carrying in a MAC PDU (Protocol Data Unit, protocol data unit). For ease of understanding and expression, the MAC-CE format adopted for the uplink resource pre-application request in this embodiment is characterized by Pre-BSR MAC-CE. However, it should be understood that the representation mode can be flexibly set.

In this embodiment, when the IAB node has multiple Pre-BSRs triggered at the same time, it can be set that only one Pre-BSR MAC-CE can be included in one MAC PDU.

In this embodiment, it can be set that Regular Pre-BSR and Periodic Pre-BSR have a higher priority than padding Pre-BSR. If the MAC PDU already contains a Regular or Periodic Pre-BSR, then the Padding Pre-BSR cannot be included.

In this embodiment, when the UL grant received by the IAB node can accommodate all the pending data in the uplink buffer, but is not enough to accommodate the Pre-BSR MAC-CE and its corresponding subheader, SR can be triggered.

In this embodiment, after the IAB node generates the uplink resource pre-application request, it may further include: when the IAB node detects that its corresponding child IAB node or UE satisfies the buffer status report modification condition that triggers pre-sending, generating a modification pre-application request The sent buffer status report (which can be represented by Modified Pre-BSR in this embodiment) is modified, wherein the buffer size in the pre-sent buffer status report is modified to indicate the amount of data to be canceled.

In this embodiment, the pre-sent buffer status report modification conditions may include but not limited to at least one of the following:

The IAB node detects that its corresponding child IAB node or UE has a radio link failure RLF;

The IAB node detects that its corresponding child IAB node or UE data packet needs to be retransmitted;

The IAB node detects that delay-sensitive packets are dropped.

For ease of understanding, this embodiment will be described below in conjunction with a specific Pre-BSR update process as an example.

In this example, when the IAB node detects that RLF occurs in the sub-IAB node or UE, or the data packet of the sub-IAB node or UE needs to be retransmitted.

The IAB node triggers the Modified Pre-BSR, and indicates through the logical channel identifier LCID that the reported Pre-BSR is a Modified Pre-BSR, and the buffer size in the Modified Pre-BSR indicates the amount of modified data. Optionally, the format of the Modified Pre-BSR MAC CE can be the same as that of the common Pre-BSR MAC CE; of course, it can also be set so that the formats of the two are inconsistent according to requirements.

In this embodiment, if the IAB node triggers the Modified Pre-BSR and the regular Pre-BSR or periodic Pre-BSR has been triggered at the same time, the data volume that needs to be pre-applied and the data volume that needs to be canceled can be compared. For example, pre-applied data volume=A, and canceled data volume=B.

If A>=B, report regular Pre-BSR or periodic Pre-BSR, the reported data volume=A-B, and cancel Modified Pre-BSR;

If A<B, report Modified Pre-BSR, the reported data volume=B-A, and all triggered Pre-BSRs are cancelled.

It can be seen that in this embodiment, the IAB node can also dynamically update the number of pre-applied resources, so as to improve resource utilization while reducing the uplink scheduling delay of the IAB node.

Embodiment three:

In order to facilitate understanding, this embodiment is further illustrated in addition to the contents exemplified in the foregoing embodiments.

In this embodiment, the design of the MAC-CE format (that is, Pre-BSR MAC-CE) adopted by the uplink resource pre-application request is given as an example.

In an example of this embodiment, the adopted MAC-CE format Pre-BSR MAC-CE can follow the BSR MAC-CE, which can reduce changes as much as possible and improve the utilization rate of the MAC-CE. In this example, the Pre-BSR MAC-CE follows the existing BSR MAC CE, and the data volume reported by the Pre-BSR and the data volume of the MT RLC are reported through the common BSR. When a BSR (the BSR can reflect all data volumes to be transmitted) is included in a MAC PDU to be transmitted, all BSRs triggered before the MAC PDU assembly will be canceled, and the Pre-BSR will also be cancelled.

In another example of this embodiment, the adopted MAC-CE format Pre-BSR MAC-CE can be obtained by modifying the existing BSR MAC CE format. In this example, if a certain LCG of the IAB node only reports a normal BSR, the IAB node can still construct a BSR MAC CE for reporting. Specifically, any of the following:

For example, for long Pre-BSR Pre-BSR MAC CE and long truncated Pre-BSR MAC CE, please refer to Figure 5. In this example, the LCID can be used to indicate that the reported Pre-BSR is long Pre-BSR or longtruncated Pre-BSR.

As another example, for the short Pre-BSR Pre-BSR MAC CE and the short truncated Pre-BSR MAC CE, refer to FIG. 6 for an implementation manner. In FIG. 6 , the Pre-BSR and the BSR may share the same LCG. Another implementation manner is shown in FIG. 7 . In FIG. 7 , different LCGs can be used for the Pre-BSR and the BSR. The LCID indicates that the reported Pre-BSR is a shortPre-BSR MAC CE or a short truncated Pre-BSR MAC CE.

In this example, when a Pre-BSR (the Pre-BSR can reflect all the data volumes to be transmitted) is included in a MAC PDU to be transmitted, all the Pre-BSRs triggered before the MAC PDU assembly are cancelled.

In another example of this embodiment, the adopted MAC-CE format Pre-BSR MAC-CE may be a newly constructed MAC-CE, and may be identified as belonging to the Pre-BSR MAC CE by a logical channel identifier LCID. And the format of the newly constructed Pre-BSRMAC-C may be the same as or different from the BSR MAC CE.

In this example, the priority relationship between the Pre-BSR MAC CE and other MAC CEs can be set to facilitate management and scheduling. For example, a priority relationship can be set as follows (priority decreases from top to bottom):

-C-RNTI MAC CE or data from UL-CCCH;

-Configured Grant Confirmation MAC CE;

-MAC CE for BSR, with exception of BSR included for padding;

-Single Entry PHR MAC CE or Multiple Entry PHR MAC CE;

-MAC CE for Pre-BSR, with exception of BSR included for padding;

-data from any Logical Channel, except data from UL-CCCH;

-MAC CE for Recommended bit rate query;

-MAC CE for BSR included for padding;

-MAC CE for Pre-BSR included for padding.

It should be understood that the above setting of the priority relationship is only an example, and the priority relationship can be flexibly set according to specific application requirements.

In this example, when a Pre-BSR (the Pre-BSR can reflect all data volumes to be transmitted) is included in a MAC PDU to be transmitted, all Pre-BSRs triggered before the MAC PDU is assembled will be cancelled.

It can be seen that in this embodiment, the MAC-CE format adopted for the uplink resource pre-application request can be flexibly set, which improves the flexibility of the uplink resource pre-application, and is more conducive to its implementation and management.

Embodiment four:

In order to facilitate understanding, this embodiment illustrates the situation when the IAB node is a multi-connection node on top of the content exemplified in the foregoing embodiments. At this time, it may be determined according to the IAB node routing table of the IAB node which nodes among its multiple parent IAB nodes to report the pre-sent buffer status report to.

In this embodiment, according to the IAB node routing table of the IAB node, determining which nodes in its multiple parent IAB nodes to report the pre-sent buffer status report may include but not limited to:

When a specific parent IAB node of the next hop is specified for the child IAB node or UE of the IAB node in the routing table of the IAB node, it is determined to report the pre-sent buffer status report to the specified parent IAB node.

When the child IAB node of the IAB node or the UE does not specify a specific parent IAB node for the next hop in the IAB node routing table, it is determined according to at least one of the following:

If the amount of data that the IAB node needs to report is greater than or equal to the uplink data volume threshold (such as ul-DataVolumeThreshold), determine to report the pre-sent buffer status report to the master IAB node and the auxiliary IAB node in its parent IAB node according to the first preset rule ; If the amount of data that the IAB node needs to report is less than the uplink data amount threshold, determine to send a pre-sent buffer status report to the master IAB node or the auxiliary IAB node in its parent IAB node according to the second preset rule;

According to the priority and/or weight of the preset cost measurement parameter of the current IAB node, determine which nodes in the parent IAB nodes to report the pre-sent buffer status report to.

In this embodiment, the above-mentioned first preset rule may include but not limited to at least one of the following:

According to the first pre-application split ratio (such as the first Pre-BSRsplitRatio), determine the amount of data reported to the master IAB node and the amount of data reported to the auxiliary IAB node; for example, the first pre-application split ratio can be set to 1:1, At this time, the amount of data reported to the master control IAB node is equal to the amount of data reported to the auxiliary IAB node;

Report the amount of data less than or equal to the first maximum cache threshold (for example, the first maxBufferSize) part to the master IAB node, and report the remaining data amount to the auxiliary IAB node;

Report all the amount of data that needs to be applied for to the master IAB node, so that the master IAB node can negotiate with the assistant IAB node on the amount of data allocated respectively.

In this embodiment, the above-mentioned second preset rule may include but not limited to at least one of the following:

If the value of the master control uplink sending indication parameter (such as ul-PreBSRMCG) of the master control IAB node is a preset value (such as true or 1), determine to report the pre-sent buffer status report to the master control IAB node; if the auxiliary IAB The value of the node's auxiliary uplink sending indication parameter (such as ul-PreBSRSCG) is a preset value (such as true or 1), and it is determined to report the pre-reported buffer status report to the auxiliary IAB node;

According to the priority and/or weight of the cost metric of the preset cost metric parameter of the IAB node, determine which nodes in the parent IAB node to report the pre-sent buffer status report to.

In this embodiment, the above preset cost measurement parameters may include but not limited to at least one of the following parameters:

The number of hops between the IAB node and the IAB host through the main control IAB node and the auxiliary IAB node;

The distance between the IAB node and the IAB host through the main control IAB node and the auxiliary IAB node;

The channel quality between the IAB node and the main control IAB node and the auxiliary IAB node respectively;

After the IAB node applied for resources from its parent IAB node last time, the ratio of resources allocated to the master IAB node and the auxiliary IAB node.

In this embodiment, when determining which nodes in the parent IAB node to report the pre-sent buffer status report to according to the priority of the preset cost measurement parameter of the IAB node, it may include:

According to the priority of the preset cost measurement parameter of this IAB node, when the pre-sent buffer status report is reported to the master IAB node, for the part that exceeds the first master maximum cache threshold (for example, the first maxBufferSize-MCG) The amount of data builds a new pre-sent buffer status report and reports it to the auxiliary IAB node;

According to the priority of the preset cost metric parameter of this IAB node, when sending the pre-sent buffer status report to the auxiliary IAB node, construct a new The pre-sent buffer status report is reported to the master IAB node.

In this embodiment, when determining which nodes in the parent IAB node to report the pre-sent buffer status report to according to the weight of the preset cost measurement parameter of the IAB node, it includes:

Obtain the value K1 calculated according to the weighted calculation of the preset cost metric parameters corresponding to the main control IAB node in the IAB node and the parent IAB node, and obtain the weighted calculation based on the preset cost metric parameters corresponding to the auxiliary IAB node in the IAB node and the parent IAB node Calculated value K2;

If K1-K2 is greater than the weight threshold (such as WeightThreshold), determine to report the pre-sent buffer status report to the main control IAB node, and construct a new data volume for the part exceeding the second main control maximum cache threshold (such as the first maxBufferSize-MCG) The pre-sent buffer status report is reported to the auxiliary IAB node;

If K2-K1 is greater than the weight threshold, determine to report the pre-sent buffer status report to the auxiliary IAB node, and build a new pre-sent buffer for the amount of data exceeding the second auxiliary maximum cache threshold (for example, the second maxBufferSize-SCG) The status report is reported to the master IAB node;

If K1=K2, it can be determined by but not limited to one of the following methods:

According to the second pre-application split ratio (i.e. the second Pre-BSRsplitRatio), determine the amount of data reported to the master IAB node and the amount of data reported to the auxiliary IAB node; for example, the second pre-application split ratio can be set to 1:1, at this time The amount of data reported to the master control IAB node is equal to the amount of data reported to the auxiliary IAB node;

Report the amount of data less than or equal to the second maximum cache threshold (ie the second maxBufferSize) part to the master control IAB node, and report the remaining data amount to the auxiliary IAB node;

Report all the amount of data that needs to be applied for to the master IAB node, so that the master IAB node and the assistant IAB node can negotiate the amount of data allocated respectively.

For ease of understanding, this embodiment will be described below in conjunction with a specific application scenario as an example.

In this application scenario, for a multi-connected IAB node, when the Pre-BSR is triggered, the MT of the IAB node can determine which parent IAB node to send the Pre-BSR to, specifically,

Next hop=MN (ie, master IAB node) or SN (ie, auxiliary IAB node) corresponding to a child IAB node or UE in the IAB node routing table. IAB node MT sends Pre-BSR according to the routing table;

In the IAB node routing table, next hop=MN&SN corresponding to a child IAB node or UE, that is, no one is specified to report to. Which parent IAB node the IAB node reports the data packet to, may include any of the following options:

Solution 1: CU configuration parameter uplink data volume threshold ul-DataVolumeThreshold

Step 1: If the data volume reported by the Pre-BSR triggered by the IAB node is greater than or equal to ul-DataVolumeThreshold, the Pre-BSR can be sent to the MN and SN at the same time, for example:

Optionally, in an example, the CU configures the first pre-application split ratio, that is, the first Pre-BSRsplitRatio parameter, which reflects the ratio of the Pre-BSR buffer size reported by the IAB node between the MN and the SN;

Optionally, in another example, the CU configures the first maximum cache threshold, that is, the first maxBufferSize parameter, which reflects the upper limit of the Pre-BSR buffer size reported to the MN. If the upper limit is exceeded, the remaining data volume applies to the SN ;

Optionally, in another example, the IAB node sends the Pre-BSR to the MN, and the MN negotiates with the SN on how to allocate resources;

Optionally, in another example, the IAB node sends the same Pre-BSR to the MN and the SN.

Step 2: If the data volume reported by the Pre-BSR is less than ul-DataVolumeThreshold, the Pre-BSR only reports any one of MN and SN, for example:

Optionally, in an example, the CU configures the master uplink transmission indication parameter ul-PreBSRMCG and the auxiliary uplink transmission indication parameter ul-PreBSRSCG for the LCG of the IAB node. If ul-PreBSRMCG of the LCG=TRUE, then the Pre-BSR reports to the MN. If ul-PreBSRSCG of LCG=TRUE, then Pre-BSR reports SN;

Optionally, in another example, which parent IAB node to send the Pre-BSR to is determined according to the cost metric of the IAB node. For the cost metric in this example, see Table 3 below:

table 3

In this example, the CU can configure the priority of each parameter in the cost metric, and the IAB node can decide to send the Pre-BSR based on the priority of the parameter;

In this example, the CU can also configure the weight of each parameter in the cost metric, and the IAB node can determine the sending of the Pre-BSR through weight calculation.

Solution 2: The IAB node directly decides to send the Pre-BSR according to the cost metric, for example:

Optionally, in an example, step 1: the CU configures the priority of each parameter in the cost metric, and the IAB node decides to send the Pre-BSR based on the priority of the parameter;

Step 2: The IAB node preferentially sends the Pre-BSR to the parent IAB node determined through Step 1. The CU configures the first maxBufferSize-MCG and the first maxBufferSize-SCG for the MN and the SN respectively. If the data volume exceeds the first maxBufferSize-MCG or the first maxBufferSize-SCG, the IAB node builds a new Pre-BSR and reports to another parent IAB node .

Optionally, in an example, the CU configures the weight of each parameter in the cost metric, and the IAB node determines the sending of the Pre-BSR through weight calculation, for example:

Step 1: The IAB node calculates the weighted results of MN and SN according to the weight of the parameters in the cost metric;

Step 2: The CU configures the WeightThreshold, the second maxBufferSize-MCG and the second maxBufferSize-SCG. For example, after weight calculation, the MN result is K1, and the SN result is K2. If K1-K2>WeightThreshold or K2-K1>WeightThreshold, Pre-BSR reports MN or SN, exceeding the second maxBufferSize-MCG or second maxBufferSize-SCG The amount of data, the IAB node builds a new Pre-BSR and reports to another parent IAB node;

If K1=K2, the decision of the parent IAB node sent may include but not limited to any of the following:

Optionally, in an example, the CU configures the second pre-application split ratio, that is, the second Pre-BSRsplitRatio parameter, which reflects the ratio of the Pre-BSR buffer size reported by the IAB node between the MN and the SN;

Optionally, in an example, the CU configures the second maximum buffering threshold, that is, the second maxBufferSize parameter, which reflects the upper limit of the Pre-BSR buffer size reported to the MN. If the upper limit is exceeded, the remaining data amount applies to the SN ;

Optionally, in an example, the IAB node sends the Pre-BSR to the MN, and the MN negotiates with the SN on how to allocate resources;

Optionally, in an example, the IAB node reports the same Pre-BSR to the MN and SN.

It can be seen that for multi-connected IAB nodes, this embodiment can flexibly determine the data volume reported by the IAB node to the master IAB node and the auxiliary IAB node in various ways, which is more conducive to flexible control according to the current specific application requirements and to improve resource utilization. utilization rate.

Embodiment five:

This embodiment also provides a resource pre-application device in an IAB network, which is applied to an IAB node, as shown in FIG. 8, including:

The trigger processing module 801 is configured to generate an uplink resource pre-application request when it is detected that the pre-application conditions for uplink resources are met, and the uplink resource pre-application request includes a pre-sent buffer status report; the specific detection and generation process can use the above-mentioned The process shown in the embodiment will not be repeated here.

The pre-application module 802 is configured to send the uplink resource pre-application request generated by the trigger processing module 801 to the parent IAB node corresponding to the IAB node, so as to request the parent IAB node to pre-allocate corresponding uplink resources for the IAB node. The specific sending process may adopt the processes shown in the above-mentioned embodiments, which will not be repeated here.

This embodiment also provides an information configuration device in an IAB network, which is applied to an IAB host, as shown in FIG. 9 , which includes an information configuration module 901 for sending an information configuration command to an IAB node to configure the IAB node, wherein The information configuration instruction includes but is not limited to at least one of the following information:

Preset data type, the first hop threshold, the second hop threshold, the third hop threshold, the first priority threshold, the second priority threshold, whether the pre-sent buffer status report forwards the indication information; pre-apply for cache Threshold, occupied cache threshold, mapping relationship between the LCG of the IAB node and the LCG of its child IAB nodes, the ratio of pre-allocated uplink resources, the routing table of the IAB node, the threshold of uplink data volume, the priority of the preset cost measurement parameters of the IAB node And/or weight, the first pre-application split ratio, the first maximum cache threshold, the uplink transmission indication parameter, the first master maximum cache threshold, the first auxiliary maximum cache threshold, the weight threshold, the second master maximum cache threshold, the second Two auxiliary maximum cache thresholds, a second pre-application split ratio, and a second maximum cache threshold.

And it should be understood that, for each of the above information, parameters or thresholds, the demand information configuration module 901 may send it through one information configuration instruction, or send it through multiple information configuration instructions.

It can be seen that the resource pre-application device in the IAB network provided by this embodiment can apply for the corresponding uplink resource from the corresponding parent IAB node in advance for the IAB node through the Pre-BSR mechanism, so that when the IAB node has uplink data to be sent, it can directly Utilize pre-applied uplink resources for transmission, thereby reducing the uplink scheduling delay of IAB nodes and improving communication efficiency and user experience.

Embodiment six:

This embodiment also provides an IAB node, as shown in FIG. 10 , which includes a first processor 1001, a first memory 1002, and a first communication bus 1003;

The first communication bus 1003 is used to realize the communication connection between the first processor 1001 and the first memory 1002;

In an example, the first processor 1001 may be configured to execute one or more first computer programs stored in the first memory 1002, so as to implement the steps of the resource pre-application method in the IAB network in the above embodiments.

In this example, when the resource pre-application device in the IAB network is set in an IAB node, the trigger processing module and the pre-application module of the resource pre-application device in the IAB network can be implemented by the processor 1002 .

This embodiment also provides an IAB host, as shown in FIG. 11 , which includes a second processor 1101, a second memory 1102, and a second communication bus 1103;

The second communication bus 1103 is used to realize the communication connection between the second processor 1101 and the second memory 1102;

In an example, the second processor 1101 may be configured to execute one or more second computer programs stored in the second memory 1102, so as to implement the steps of the method for configuring information in the IAB network in the above embodiments.

In this example, when the above-mentioned information configuration device in the IAB network is set in the IAB host, the information configuration module 901 of the information configuration device in the IAB network can be realized by the above-mentioned processor 1102 .

The present embodiment also provides a computer-readable storage medium, which includes information implemented in any method or technology for storing information, such as computer-readable instructions, data structures, computer program modules, or other data. volatile or nonvolatile, removable or non-removable media. Computer-readable storage media include but are not limited to RAM (Random Access Memory, random access memory), ROM (Read-Only Memory, read-only memory), EEPROM (Electrically Erasable Programmable read only memory, electrically erasable programmable read-only memory) ), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory, compact disk read-only memory), digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tapes, magnetic disk storage or other magnetic storage devices, Or any other medium that can be used to store desired information and that can be accessed by a computer.

In one example, the computer-readable storage medium in this embodiment can be used to store one or more first computer programs, and the one or more first computer programs can be executed by one or more processors to implement the above The steps of the resource pre-application method in the IAB network in each embodiment.

In another example, the computer-readable storage medium in this embodiment can be used to store one or more second computer programs, and the one or more second computer programs can be executed by one or more processors to realize The steps of the information configuration method in the IAB network in the above embodiments.

This embodiment also provides a first computer program (or computer software), which can be distributed on a computer-readable medium and executed by a computing device, so as to realize the IAB as shown in the above embodiments. At least one step of the resource pre-application method in the network; and in some cases, at least one step shown or described may be executed in a sequence different from that described in the above embodiments.

This embodiment also provides a second computer program (or computer software), which can be distributed on a computer-readable medium and executed by a computing device, so as to realize the IAB as shown in the above embodiments. At least one step of the method for configuring information in a network; and in some cases, at least one step shown or described may be performed in a sequence different from that described in the above embodiments.

This embodiment also provides a computer program product, including a computer-readable device, on which the first computer program and/or the second computer program shown above are stored. The computer-readable device in this embodiment may include the computer-readable storage medium as described above.

It can be seen that those skilled in the art should understand that all or some of the steps in the methods disclosed above, the functional modules/units in the system and the device can be implemented as software (the computer program code executable by the computing device can be used to realize ), firmware, hardware, and appropriate combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit .

In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery medium. Therefore, the present invention is not limited to any specific combination of hardware and software.

The above content is a further detailed description of the embodiments of the present invention in conjunction with specific implementation modes, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (25)

1. a kind of access certainly and return IAB resources in network preliminery application method, comprising:

When the preliminery application condition of IAB nodal test to ascending resource meets, ascending resource preliminery application request, the uplink money are generated Preliminery application request in source includes the Buffer Status Report sent in advance；

Ascending resource preliminery application request is issued its corresponding father IAB node by the IAB node, to request the father IAB Node allocates corresponding ascending resource in advance for it.

2. IAB resources in network preliminery application method as described in claim 1, which is characterized in that the IAB node includes distribution At least one of formula network element DU, mobile terminal MT.

3. IAB resources in network preliminery application method as described in claim 1, which is characterized in that access the IAB node IAB node is known as sub- IAB node, and the IAB node is known as father's IAB node to connect the IAB node that identity is accessed.

4. IAB resources in network preliminery application method as described in any one of claims 1-3, which is characterized in that IAB nodal test Whether the preliminery application condition of ascending resource, which meets, includes:

The IAB node is the first IAB node, the first IAB node receive after the upstream data from user equipment (UE) or After the upstream data that sub- IAB node generates or after receiving the Buffer Status Report from UE or sub- IAB node, according to following At least one determine ascending resource preliminery application condition whether meet:

According to the logic channel group LCG of itself whether it is configured as that the Buffer Status Report sent in advance is supported to determine ascending resource Preliminery application condition whether meet；

It whether is that preset data type determines whether the preliminery application condition of ascending resource meets according to the upstream data.

5. IAB resources in network preliminery application method as claimed in claim 4, which is characterized in that the first IAB node with When hop count between IAB host is less than the first hop count threshold value, in the LCG of the first IAB node, it is preferential that priority is higher than first The LCG of grade threshold value is configured as the Buffer Status Report for supporting to send in advance；

And/or

When hop count between the first IAB node and IAB host is more than or equal to the second hop count threshold value, the first IAB node All LCG be configured as the Buffer Status Report for supporting to send in advance.

6. IAB resources in network preliminery application method as claimed in claim 4, which is characterized in that the preset data type packet Include at least one of:

Control face data；

To the user face data of delay sensitive；

The hop count for reaching IAB host's experience is more than or equal to the data of third hop count threshold value.

7. IAB resources in network preliminery application method as described in any one of claims 1-3, which is characterized in that IAB nodal test Whether the preliminery application condition of ascending resource, which meets, includes:

The IAB node is the 2nd IAB node, and the 2nd IAB node receives the buffering for the pre- transmission that sub- IAB node is sent After zone state report, determine whether the preliminery application condition of ascending resource meets according at least one of:

If the cache size buffer size that the Buffer Status Report of the pre- transmission received reports is cached greater than preliminery application Threshold value, and itself current occupied cache size is greater than occupancy cache threshold, determines that the preliminery application condition of ascending resource is full Foot；

If the priority of the LCG of the Buffer Status Report of the pre- transmission is reported to be higher than the second priority threshold value, uplink is determined The preliminery application condition of resource meets.

8. IAB resources in network preliminery application method as described in any one of claims 1-3, which is characterized in that the IAB node Generating ascending resource preliminery application request includes:

It determines the LCG for reporting the Buffer Status Report of pre- transmission, including is determined according at least one following manner:

It is determined according to the mapping relations between the LCG of the IAB node and the LCG of its sub- IAB node；

When the IAB node receives the Buffer Status Report for the pre- transmission that its sub- IAB node reports, saved according to its sub- IAB Point reports the logic channel LCH for having data to send in LCG used by the Buffer Status Report of pre- transmission to determine.

9. IAB resources in network preliminery application method as claimed in claim 8, which is characterized in that the IAB node receives it When the Buffer Status Report for the pre- transmission that sub- IAB node reports, the buffer state of pre- transmission is reported according to its sub- IAB node The logic channel LCH for having data to send in LCG used by reporting is determined, comprising:

There are data to send in LCG used by reporting the Buffer Status Report of pre- transmission according to the sub- IAB node preferential The LCG for the IAB node that the highest LCH of grade is inferred to, reports the Buffer Status Report of pre- transmission as the IAB node LCG。

10. IAB resources in network preliminery application method as described in any one of claims 1-3, which is characterized in that further include:

The IAB node is after its sub- IAB node or UE are assigned with ascending resource, and the data volume filling of distribution is corresponding virtual It caches in buffer；

The data volume of the distribution is equal to the data volume actually distributed multiplied by predistribution ascending resource rate value, in the predistribution Row resource rate value is less than or equal to 1.

11. IAB resources in network preliminery application method as described in any one of claims 1-3, which is characterized in that the uplink money Preliminery application request in source is sent by MAC CE format.

12. IAB resources in network preliminery application method as claimed in claim 11, which is characterized in that generate the generation uplink After resource preliminery application request, further includes:

The IAB node is repaired in the Buffer Status Report for detecting that its corresponding sub- IAB node or UE satisfaction triggering are sent in advance When changing condition, generates the Buffer Status Report that modification is sent in advance and be modified, it is described to modify the buffer state report sent in advance The data volume that buffer size instruction in announcement needs to cancel.

13. IAB resources in network preliminery application method as claimed in claim 12, which is characterized in that the buffering of the pre- transmission Zone state reports that modification condition includes at least one of:

There is Radio Link Failure RLF to its corresponding sub- IAB node or UE in IAB nodal test；

IAB nodal test needs to retransmit to its corresponding sub- IAB node or UE data packet.

14. IAB resources in network preliminery application method as claimed in claim 11, which is characterized in that the MAC CE format edge With BSR MAC CE format.

15. IAB resources in network preliminery application method as described in any one of claims 1-3, which is characterized in that in the generation When row resource preliminery application request includes the node that the IAB node is multi-connection, the IAB node road according to the IAB node Determine which node into its multiple father IAB node reports the Buffer Status Report of pre- transmission from table, comprising:

When the specific father IAB section of the sub- IAB node or the not specified next-hop of UE that are directed to IAB node in the IAB node route list When point, determined according at least one of:

If the data volume that the IAB node needs to report is more than or equal to upstream data amount threshold value, determined according to the first preset rules Into his father's IAB node, master control IAB node and auxiliary IAB node report the Buffer Status Report of pre- transmission；If the IAB section The data volume that point needs to report is less than the upstream data amount threshold value, is determined according to the second preset rules into his father's IAB node Master control IAB node or auxiliary IAB node send the Buffer Status Report sent in advance；

According to the priority and/or weight of the default cost metric parameter of this IAB node, determine into the father IAB node Which node reports the Buffer Status Report of pre- transmission.

16. IAB resources in network preliminery application method as claimed in claim 15, which is characterized in that first preset rules Including at least one of:

It is determined according to the first preliminery application split ratio and reports the data volume of the master control IAB node and the auxiliary IAB is reported to save The data volume of point；

The data volume for being less than or equal to the first largest buffered threshold portion is reported into the master control IAB node, and by remaining data amount Report the auxiliary IAB node；

The data volume applied will be needed all to report the master control IAB node, for the master control IAB node and the auxiliary IAB node negotiates the data volume respectively distributed.

17. IAB resources in network preliminery application method as claimed in claim 15, which is characterized in that second preset rules Including at least one of:

If the value that the master control uplink of the master control IAB node sends instruction parameter is preset value, determines and saved to the master control IAB Point reports the Buffer Status Report of pre- transmission；If the value that the auxiliary uplink of the auxiliary IAB node sends instruction parameter is Preset value determines the Buffer Status Report that pre- transmission is reported to the auxiliary IAB node；

According to the priority and/or weight of the default cost metric parameter of this IAB node, determine into the father IAB node Which node reports the Buffer Status Report of pre- transmission.

18. IAB resources in network preliminery application method as claimed in claim 15, which is characterized in that according to the pre- of this IAB node Determining which node into the father IAB node of priority for being set as this metric parameter reports the buffer state report of pre- transmission When announcement, comprising:

It is determined according to the priority of the default cost metric parameter of this IAB node to the master control IAB node and reports pre- transmission When Buffer Status Report, the buffering of the pre- transmission new for the data volume building beyond the first master control largest buffered threshold portion Zone state report reporting gives the auxiliary IAB node；

Being determined according to the priority of the default cost metric parameter of this IAB node to described assists the transmission of IAB node to send in advance When Buffer Status Report, the buffering of the pre- transmission new for the data volume building beyond the first auxiliary largest buffered threshold portion Zone state report reporting gives the master control IAB node.

19. IAB resources in network preliminery application method as claimed in claim 15, which is characterized in that according to the pre- of this IAB node Determining which node into the father IAB node of weight for being set as this metric parameter reports the Buffer Status Report of pre- transmission When, comprising:

After obtaining according to this IAB node default cost metric parameter weighted calculation corresponding with master control IAB node in father's IAB node Value K1, and obtain the default cost metric parameter weighting corresponding with IAB node is assisted in father's IAB node according to this IAB node Value K2 after calculating；

If K1-K2 is greater than weight threshold, the Buffer Status Report that pre- transmission is reported to the master control IAB node is determined, for The Buffer Status Report of the new pre- transmission of data volume building beyond the second master control largest buffered threshold portion is reported to described Assist IAB node；

If K2-K1 is greater than weight threshold, the Buffer Status Report that pre- transmission is reported to the auxiliary IAB node is determined, for The Buffer Status Report of the new pre- transmission of data volume building beyond the second auxiliary largest buffered threshold portion is reported to described Master control IAB node；

If K1=K2, determine one of in the following ways:

It is determined according to the second preliminery application split ratio and reports the data volume of the master control IAB node and the auxiliary IAB is reported to save The data volume of point；

The data volume for being less than or equal to the second largest buffered threshold portion is reported into the master control IAB node, and by remaining data amount Report the auxiliary IAB node；

The data volume applied will be needed all to report the master control IAB node, for the master control IAB node and the auxiliary IAB node negotiates the data volume respectively distributed.

20. information configuring methods in a kind of IAB network, comprising:

Information configuration instruction is sent to IAB node, the information configuration instruction includes at least one of following information:

Preset data type, the first hop count threshold value, the second hop count threshold value, third hop count threshold value, the first priority threshold value, second is excellent First grade threshold value, preliminery application cache threshold occupy cache threshold, the mapping between the LCG of IAB node and the LCG of its sub- IAB node Relationship pre-allocates ascending resource rate value, IAB node route list, upstream data amount threshold value, the default cost metric of IAB node The priority and/or weight of parameter, the first preliminery application split ratio, the first largest buffered threshold value, uplink, which is sent, indicates parameter, first Master control largest buffered threshold value, the first auxiliary largest buffered threshold value, weight threshold, the second master control largest buffered threshold value, the second auxiliary Largest buffered threshold value, the second preliminery application split ratio, the second largest buffered threshold value.

21. a kind of IAB resources in network preliminery application device is applied to IAB node characterized by comprising

Processing module being triggered, when for detecting that the preliminery application condition of ascending resource meets, generating ascending resource preliminery application request, The ascending resource preliminery application request includes the Buffer Status Report sent in advance；

Preliminery application module, for the corresponding father IAB node of the IAB node to be issued in ascending resource preliminery application request, with Requesting the father IAB node is that the IAB node allocates corresponding ascending resource in advance.

22. information configuration device in a kind of IAB network is applied to IAB host characterized by comprising

Information collocation module, for sending information configuration instruction to IAB node, the information configuration instruction includes in following information At least one:

Preset data type, the first hop count threshold value, the second hop count threshold value, third hop count threshold value, the first priority threshold value, second is excellent First grade threshold value, preliminery application cache threshold occupy cache threshold, the mapping between the LCG of IAB node and the LCG of its sub- IAB node Relationship pre-allocates ascending resource rate value, IAB node route list, upstream data amount threshold value, the default cost metric of IAB node The priority and/or weight of parameter, the first preliminery application split ratio, the first largest buffered threshold value, uplink, which is sent, indicates parameter, first Master control largest buffered threshold value, the first auxiliary largest buffered threshold value, weight threshold, the second master control largest buffered threshold value, the second auxiliary Largest buffered threshold value, the second preliminery application split ratio, the second largest buffered threshold value.

23. a kind of IAB node, which is characterized in that including first processor, first memory and the first communication bus；

First communication bus is for connecting the first processor with first memory；

The first processor is for executing the first computer program stored in the first memory, to realize as right is wanted The step of seeking 1-19 described in any item IAB resources in network preliminery application methods.

24. a kind of IAB host, which is characterized in that including second processor, second memory and the second communication bus；

Second communication bus is for connecting the second processor with second memory；

The second processor is for executing the second computer program stored in the second memory, to realize as right is wanted In IAB network described in asking 20 the step of information configuring methods.

25. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or Multiple first computer programs, one or more of first computer programs can be executed by one or more processor, With the step of realizing IAB resources in network preliminery application methods as described in any item such as claim 1-19；

Or,

The computer-readable recording medium storage has one or more second computer program, and one or more of Two computer programs can be executed by one or more processor, to realize information in IAB network as claimed in claim 20 The step of configuration method.