WO2020221005A1

WO2020221005A1 - Method for determining valid random access resource, signal reception method, and node

Info

Publication number: WO2020221005A1
Application number: PCT/CN2020/084794
Authority: WO
Inventors: 吴丹; 郑毅; 董静; 金婧; 张静文; 王启星
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2019-04-30
Filing date: 2020-04-14
Publication date: 2020-11-05
Also published as: CN111867137A

Abstract

The present disclosure relates to the technical field of wireless communications, and provides a method for determining a valid random access resource, a signal reception method, and a node, wherein the method comprises: determining a first valid random access resource, the first valid random access resource being a first random access resource satisfying a first preset condition, wherein the first preset condition comprises at least one of the following: not overlapping with a second random access resource and/or a second valid random access resource; not overlapping with a first synchronization signal/broadcast channel block; and being located after the second random access resource, and spaced apart from the second random access resource and/or the second valid random access resource by symbols the number of which is greater than or equal to N.

Description

Method for determining effective random access resources, signal receiving method and node

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910365173.6 filed in China on April 30, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the field of wireless communication technology, and in particular to a method for determining effective random access resources, a method for receiving signals, and a node.

Background technique

In order to meet the application requirements of 5G (fifth generation mobile communication system) hotspots and high-capacity scenarios, the future 5G deployment will require dense deployment of high frequency bands. In order to reduce the demand for optical fiber and reduce the cost, it is necessary to use Integrated Access and Backhaul (IAB) technology. In the access function of the high-frequency base station, the backhaul function is added to make the high-frequency deployment possible. It does not need optical fiber to connect to the core network, and the backhaul function can be realized by using wireless links. Please refer to Figure 1. Figure 1 is a schematic diagram of an IAB network, where IAB donor is the host node connected to the core network through optical fiber, Backhaul is the backhaul link, Access is the access link, and IAB node is no optical fiber connection. Core network, but IAB nodes that can perform backhaul through wireless links and can provide access functions. The Distributed Unit (DU) side of the IAB node can provide backhaul or access capabilities for lower-level nodes or users, The mobile terminal/termination (MT) side of the IAB node can connect to the upper-level node as a user to realize backhaul.

In the New Radio (NR), due to the flexible frame structure configuration, there are downlink, uplink and flexible resources. The random access resources allocated to the terminal need to be judged according to the frame structure of the system to determine the effective random access Only after the resource can it be associated and mapped with the synchronization signal and used. For IAB nodes, it is currently only determined that there must be a time offset configuration between its random access resource configuration and the random access resources of ordinary users, so as to ensure that IAB nodes between two consecutive hops can configure TDM (Time division) random access resources. However, it is currently unclear how the effective RO (RACH (Random Access Channel) Occasion random access resource, which may also be referred to as random access transmission opportunity) of the IAB node is determined.

Summary of the invention

In view of this, the present disclosure provides a method for determining an effective random access resource, a signal receiving method, and a node to solve the problem that it is not clear how the effective random access resource of an IAB node is determined.

To solve the above technical problems, in the first aspect, the present disclosure provides a method for determining effective random access resources, which is applied to the first node, and includes:

Determine a first effective random access resource, where the first effective random access resource is a first random access resource meeting a first preset condition, and the first preset condition includes at least one of the following:

Does not overlap with the second random access resource and/or the second effective random access resource;

Does not overlap with the first synchronization signal/broadcast channel block;

The number of symbols located after the second random access resource and separated from the second random access resource and/or the second effective random access resource is greater than or equal to N, where N is greater than Or an integer equal to 0.

Optionally, the first node is a node with access and/or backhaul capabilities.

Optionally, the second random access resource and/or the second effective random access resource are located in a third resource or a fourth resource.

Optionally, the third resource is the UL hard resource that is required for uplink on the DU side of the distributed unit as the first node; the fourth resource is the UL hard resource available for uplink on the DU side of the distributed unit as the first node. Resources.

Optionally, the second random access resource and/or the second effective random access resource include: random access resources configured for the terminal, and/or random access resources configured for the subordinate first node .

Optionally, the first synchronization signal/broadcast channel block is located in the fifth resource or the sixth resource.

Optionally, the fifth resource is a required downlink DL Hard resource on the DU side of the distributed unit as the first node; the sixth resource is a downlink available DL soft resource on the DU side of the first node as the distributed unit Resources.

Optionally, the first synchronization signal/broadcast channel block resource includes: a synchronization signal/broadcast channel block resource for terminal access and measurement sent by the first node, and/or, sent by the first node The synchronization signal/broadcast channel block resource used for discovery between nodes.

Optionally, the method further includes:

The first node serving as the distributed unit DU side does not receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

The number of symbols located before the first effective random access resource and separated from the first effective random access resource is less than N, where N is an integer greater than or equal to 0.

In the second aspect, the present disclosure also provides a signal receiving method applied to the first node, including:

Overlap with the first effective random access resource;

Optionally, the first effective random access resource is a first random access resource meeting a first preset condition, and the first preset condition includes at least one of the following:

Does not overlap with the first synchronization signal/broadcast channel block;

In a third aspect, the present disclosure also provides a first node, including:

The determining module is configured to determine a first effective random access resource, where the first effective random access resource is a first random access resource that meets a first preset condition, and the first preset condition includes at least one of the following :

Does not overlap with the first synchronization signal/broadcast channel block resource;

Optionally, the first node is a node with access and/or backhaul capabilities.

Optionally, the first node further includes:

The receiving module is used for the first node as the distributed unit DU side not to receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

In a fourth aspect, the present disclosure also provides a first node, including:

Overlap with the first effective random access resource;

Does not overlap with the first synchronization signal/broadcast channel block;

In a fifth aspect, the present disclosure also provides a first node, including a memory, a processor, and a computer program stored on the memory and running on the processor; the processor executes the computer program when the computer program is executed Any of the foregoing methods for determining effective random access resources or implementing any of the foregoing signal receiving methods.

In a sixth aspect, the present disclosure also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it realizes the steps in any of the above-mentioned methods for determining effective random access resources or realizes the above Steps in any signal receiving method.

The beneficial effects of the above technical solutions of the present disclosure are as follows:

In the embodiment of the present disclosure, a criterion for determining the effective random access resource on the MT side of the half-duplex IAB node (that is, the first effective random access resource) is provided: if it is compared with the random access resource on the DU side (that is, the If the second random access resource and/or the second effective random access resource overlap, the random access resource on the DU side takes precedence; if it is the same as the SSB resource on the DU side (that is, the first synchronization signal/broadcast channel block) ) Overlap, the SSB resources on the DU side are given priority; in addition, in order to reserve time for uplink and downlink conversion, for the random access resources on the MT side after the random access resources on the DU side, only the random access resources on the DU side are separated Only when it is greater than or equal to N symbols can it be determined as an effective random access resource on the MT side. That is to say, except for resources that overlap with the random access resources on the DU side, overlap with the SSB resources on the DU side, and resources within N symbols after the random access resources on the DU side are not valid random access resources on the MT side, other These are all effective random access resources on the MT side, so that it can reduce the access delay of the IAB node's backhaul link while not affecting the legacy UE as much as possible, ensuring the robustness of the backhaul link and avoiding resource IAB node access failure caused by configuration conflicts.

Description of the drawings

Figure 1 is a schematic diagram of an IAB network;

Figure 2 is a schematic diagram of the half-duplex restriction of the IAB node;

Figure 3 is a schematic diagram of the half-duplex + time division limit of the IAB node;

Figure 4 is a schematic diagram of the half-duplex restriction of the IAB node, considering space division or frequency division;

5 is a schematic flowchart of a method for determining effective random access resources in Embodiment 1 of the present disclosure;

6 is a schematic diagram of a judgment rule when the RO on the MT side conflicts with the downlink resource on the DU side in an embodiment of the disclosure;

FIG. 7 is a schematic flowchart of a signal receiving method in Embodiment 2 of the disclosure;

FIG. 8 is a schematic structural diagram of a first node in Embodiment 3 of the disclosure;

9 is a schematic structural diagram of a first node in the fourth embodiment of the disclosure;

FIG. 10 is a schematic structural diagram of another first node in Embodiment 5 of the present disclosure;

FIG. 11 is a schematic structural diagram of another first node in Embodiment 6 of the disclosure.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art fall within the protection scope of the present disclosure.

For an IAB node, it has both MT function (MT side function) and DU function (DU side function). For the MT side, normally, the effective random access resources should be determined according to the uplink, downlink, and flexible resource allocation on the MT side, but the IAB node also has the DU function. Considering the half-duplex restriction of the IAB node, when receiving on the DU side, the MT side will definitely not be able to send, that is, as shown in Figure 2, if the DU side is receiving transmissions from lower-level nodes or terminals (such as random access of the terminal) Resources (UE RACH), random access resources of lower nodes (RACH of lower nodes), and other uplink resources (other UL)) will conflict with random access resources on the MT side. In addition, as shown in Figure 3, there is currently a TDM restriction between the resources on the MT side and the DU side of the IAB node, that is, the two are separated when needed, and the resources used by the DU (that is, the DU hard), the random access resource on the MT side cannot be sent. Even when there is no TDM restriction between the resources on the MT side and the DU side of the IAB node, as shown in Figure 4, for example, when the two can be SDM (Space Division) or FDM (Frequency Division), when the DU side transmits , MT side can also send. But when the DU side sends SSB (ie SS/PBCH Block, synchronization signal block and/or physical broadcast channel block, including PSS (primary synchronization signal), SSS (secondary synchronization signal) and PBCH (physical broadcast channel), it can also be called When it is a synchronization signal/broadcast channel block) or the remaining minimum system information (Remaining Minimal System Information, RMSI), which is important for the access terminal, the transmission power of the DU side should be ensured. Therefore, conflicts between the random access resources on the MT side and the SSB resources on the DU side should also be avoided.

In summary, when determining the effective random access resources on the MT side, additional consideration should be given to the resource allocation on the DU side.

The first embodiment of the present disclosure provides a method for determining the effective random access resource on the MT side in combination with the resource allocation on the DU side. Please refer to FIG. 5, which is an effective random access resource provided by the first embodiment of the disclosure. Schematic diagram of the flow of the method for determining, which is applied to the first node, that is, the IAB node, and includes the following steps:

Step 51: Determine a first effective random access resource, where the first effective random access resource is a first random access resource meeting a first preset condition, and the first preset condition includes at least one of the following (also: That is, the effective random access resource on the MT side is determined according to at least one of the following conditions):

It does not overlap with the second random access resource and/or the second effective random access resource; that is, it does not overlap with the random access resource on the DU side and/or the effective random access resource on the DU side; it should be noted that , The random access resource on the MT side has priority over other uplink resources on the DU side except for the random access resource;

It does not overlap with the first synchronization signal/broadcast channel block; that is, it does not overlap with the SSB resources on the DU side; it should be noted that the random access resources on the MT side have priority over other downlink resources on the DU side except the SSB resources;

The number of symbols located after the second random access resource and separated from the second random access resource and/or the second effective random access resource is greater than or equal to N, where N is greater than Or an integer equal to 0. That is, among the random access resources on the MT side that are located after the random access resources on the DU side, the number of symbols separated from the random access resources on the DU side is greater than or equal to N. Effective random access resources.

Of course, the preset conditions are not limited to the conditions listed above, and may also include other conditions, that is, the effectiveness of the effective random access resources on the MT side may also be determined according to other conditions, for example, according to the MT side The uplink, downlink, and flexible resource allocation conditions determine the effectiveness of random access resources.

It should be noted that if the random access resource on the MT side (that is, the first random access resource, the same below) is the same as the random access resource on the DU side (that is, the second random access resource and/or the first random access resource). 2. Effective random access resources, the same below) and/or SSB resources (that is, the first synchronization signal/broadcast channel block, the same below) overlap, then the effective random access resources on the MT side may not include overlapping entire random blocks The access resources may also include only the overlapping part, that is, only the overlapping part is knocked out, and the remaining part is retained. For the preset condition: the number of symbols located after the second random access resource and the interval between the second random access resource and/or the second effective random access resource is greater than or equal to N, The random access resources on the MT side and the random access resources on the DU side may or may not overlap. If there is overlap, the overlapped part and the N symbols before the overlap are knocked out.

Regarding the condition that it does not overlap with the random access resources on the DU side, due to half-duplex restrictions, the uplink signal on the DU side and the random access resources on the MU side conflict with each other, taking into account the random access resources configured by the DU side for the terminal It is necessary to ensure the correct understanding of some legacy UEs (old terminals, which can also be called old user equipment). Therefore, it should be ensured that this part of the random access resources (configured to the terminal on the DU side) will not be affected by the MT side after configuration. Therefore, once there is a conflict with the random access resource on the MT side, it should be ensured that the random access resource configured on the DU side for the terminal has priority.

At present, it can be ensured from the configuration that the random access resources on the MT side and the random access resources on the DU side (configured to the terminal on the DU side) are orthogonal, that is, the random access resources configured on the MT side and the random access resources configured on the DU side are orthogonal. The access resources use the same random access resource configuration index (PRACH configuration Index), plus the configuration of the time offset. However, considering the time for the uplink and downlink conversion of the IAB node, it is necessary to limit the time offset between the two (random access resources on the MT side and random access resources on the DU side) not less than N symbols. If the time offset is the slot level, it is necessary to ensure that the interval between the last random access resource in the previous slot and the first random access resource in the next slot is greater than or equal to N symbols.

If the random access resources configured on the MT side and the random access resources configured on the DU side use different random access resource configuration indexes, and the random access resources on the MT side overlap with the random access resources on the DU side, Then the overlapping part cannot be used as an effective random access resource on the MT side, that is, the random access resource on the DU side is given priority. And among other random access resources on the MT side (except for the part that overlaps with the random access resources on the DU side), the random access resources whose interval with the random access resources on the DU side are greater than or equal to N symbols are Effective random access resources on the MT side.

In summary, considering the uplink-downlink transition time of the IAB node, the effective random access resource on the MT side needs to be greater than or equal to N symbols from the random access resource on the DU side. Of course, if the effective random access resource on the MT side The random access resource is located before the random access resource on the DU side, so the interval between the effective random access resource on the MT side and the random access resource on the DU side can be less than N symbols, that is, It is not restricted by the condition that the interval is greater than or equal to N symbols.

Wherein, the value of N can be 0 or 2. Specifically, the corresponding relationship between the value of N and the preamble SCS of the random access preamble can be found in Table 1 below.

Table 1

Preamble SCSPreamble SCS	NN
1.25kHz or 5kHz1.25kHz or 5kHz	00
15kHz or 30kHz or 60kHz or 120kHz15kHz or 30kHz or 60kHz or 120kHz	22

Regarding the condition that it does not overlap with the SSB resources on the DU side. If the random access resource on the MT side cannot be sent on the resource (DU hard) that is determined to be used by the DU side, it may cause the random access channel (Random Access Channel, RACH) association period on the MT side to be too long, causing the MT side The access delay of MT is too long, and once the backhaul link on the MT side is disconnected, it will have a great impact on the DU side. Therefore, the transmission of the backhaul link on the MT side should be guaranteed as much as possible. Therefore, in the embodiment of the present disclosure, as shown in FIG. 6, when it conflicts with the downlink on the DU side (for example, system information (SI), physical downlink control channel (PDCCH), channel state information reference signal (CSI-RS), etc.) , The random access resource on the MT side is preferred. However, because the SSB on the DU side needs to serve the access terminal and should not affect the legacy UE, the transmission of the SSB should be given priority. That is, the random access resources on the MT side that overlap with the SSB resources on the DU side should be considered Not a valid random access resource.

In the embodiments of the present disclosure, a criterion for determining effective random access resources on the MT side of a half-duplex IAB node is provided: if it overlaps with the random access resources on the DU side and/or the effective random access resources on the DU side, then The random access resources on the DU side are given priority; if they overlap with the SSB resources on the DU side, the SSB resources on the DU side are given priority; in addition, in order to reserve time for uplink and downlink conversion, for the MT located after the random access resources on the DU side The side random access resource is determined as the effective random access resource on the MT side only when the random access resource interval from the DU side is greater than or equal to N symbols. That is to say, except for resources that overlap with the random access resources on the DU side, overlap with the SSB resources on the DU side, and resources within N symbols after the random access resources on the DU side are not valid random access resources on the MT side, other These are all effective random access resources on the MT side, so that it can reduce the access delay of the IAB node's backhaul link while not affecting the legacy UE as much as possible, ensuring the robustness of the backhaul link and avoiding resource IAB node access failure caused by configuration conflicts.

The following examples illustrate the method for determining the effective random access resource.

Optionally, the first node is a node with access and/or backhaul capabilities. Specifically, the name of the first node may be an integrated access backhaul node (IAB node), or another name, which is not limited here.

Further optionally, the third resource is an uplink required (UL hard) resource of the first node as a distributed unit (DU) side; the fourth resource is the first node as a distributed unit (DU) The uplink available (UL soft) resources on the) side.

That is, the random access resource on the DU side is located in the UL hard resource or the UL soft resource on the DU side. That is to say, as long as it is the random access resource configured on the DU side, no matter what form (UL hard, UL soft), it is preferred to the random access resource on the MT side.

That is, the random access resources on the DU side include: random access resources configured to the terminal, and/or random access resources configured to the subordinate first node. In the embodiments of the present disclosure, considering that the random access resources configured by the DU side for the terminal need to ensure the correct understanding of some legacy UEs, it is necessary to give priority to the random access resources configured by the DU side for the terminal. Secondly, the random access resources allocated to the lower-level nodes on the DU side are prioritized.

Further optionally, the fifth resource is a required downlink (DL Hard) resource of the first node as the distributed unit (DU) side; the sixth resource is the first node as a distributed unit (DU) The downlink available (DL soft) resources on the) side.

That is, the SSB resource on the DU side is located in the DL hard resource or the DL soft resource on the DU side.

Optionally, the first synchronization signal/broadcast channel block resource includes: a synchronization signal/broadcast channel block resource for terminal access and measurement sent by the first node, and/or, sent by the first node The synchronization signal/broadcast channel block resource used for discovery between nodes. That is, the SSB resources on the DU side include: SSB resources used by the DU side for terminal access and measurement, and/or SSB resources used by the DU side for inter-node discovery.

Optionally, the method provided by the embodiment of the present disclosure further includes:

The first node serving as a distributed unit (DU) side does not receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

It can also be said that the first node as a distributed unit (DU) side can receive an uplink signal on an uplink resource meeting a third preset condition, and the third preset condition includes at least one of the following:

Does not overlap with the first effective random access resource;

The number of symbols located before the first effective random access resource and separated from the first effective random access resource is greater than or equal to N, where N is an integer greater than or equal to 0.

That is, the DU side does not receive uplink signals within the following symbols:

Symbols overlapping with the effective random access resources on the MT side;

In the N symbols before the effective random access resource on the MT side, N is an integer greater than or equal to 0.

According to the above, the priority to ensure random access resources on the DU side is to ensure the correct understanding of some legacy UEs. For other uplink resources on the DU side, it is necessary to yield to the random access resources on the MT side, that is, the random access resources on the MT side have priority over other uplink resources on the DU side to ensure the transmission of the backhaul link on the MT side.

In addition, the DU side does not receive uplink resources within N symbols before the random access resource on the MT side (except the random access resource on the DU side).

Wherein, the N symbols between the effective random access resources on the MT side and the random access resources on the DU side are used for uplink and downlink conversion, and the effective random access resources on the MT side are the same as those on the DU side. The N symbols spaced between other uplink resources are also used for uplink and downlink conversion.

Please refer to FIG. 7. FIG. 7 is a signal receiving method provided in the second embodiment of the present disclosure, which is applied to the first node, that is, the IAB node, and includes:

Step 71: The first node, as a distributed unit (DU) side, does not receive uplink signals on uplink resources that meet a second preset condition, where the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

Does not overlap with the first effective random access resource;

Symbols overlapping with the effective random access resources on the MT side;

In the embodiments of the present disclosure, the priority to ensure random access resources on the DU side is to ensure the correct understanding of some legacy UEs. For other uplink resources on the DU side, it is necessary to yield to the random access resources on the MT side, that is, the random access resources on the MT side have priority over other uplink resources on the DU side to ensure the transmission of the backhaul link on the MT side. In addition, the DU side does not receive uplink resources within N symbols before the random access resources on the MT side (except for the random access resources on the DU side), for the purpose of uplink and downlink conversion.

Does not overlap with the first synchronization signal/broadcast channel block;

Specifically, for the relevant information about the first effective random access resource, please refer to the first embodiment above, which will not be repeated here.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of a first node according to Embodiment 3 of the present disclosure. The first node 80 includes:

The determining module 81 is configured to determine a first effective random access resource, where the first effective random access resource is a first random access resource that meets a first preset condition, and the first preset condition includes at least one of the following One:

In the embodiments of the present disclosure, a criterion for determining effective random access resources on the MT side of a half-duplex IAB node is provided: if it overlaps with the random access resources on the DU side, the random access resources on the DU side are given priority; if If it overlaps with the SSB resources on the DU side, the SSB resources on the DU side are given priority; in addition, in order to reserve time for uplink and downlink conversion, for the random access resources on the MT side after the random access resources on the DU side, only those on the DU side When the random access resource interval is greater than or equal to N symbols, it is determined as the effective random access resource on the MT side. That is to say, except for resources that overlap with the random access resources on the DU side, overlap with the SSB resources on the DU side, and resources within N symbols after the random access resources on the DU side are not valid random access resources on the MT side, other These are all effective random access resources on the MT side, so that it can reduce the access delay of the IAB node's backhaul link while not affecting the legacy UE as much as possible, ensuring the robustness of the backhaul link and avoiding resource IAB node access failure caused by configuration conflicts.

Optionally, the first node is a node with access and/or backhaul capabilities.

Optionally, the third resource is an uplink required (UL hard) resource of the first node as a distributed unit (DU) side; the fourth resource is the first node as a distributed unit (DU) The uplink available (UL soft) resources on the side.

Optionally, the fifth resource is a required downlink (DL Hard) resource of the first node as a distributed unit (DU) side; the sixth resource is the first node as a distributed unit (DU) Downlink available (DL soft) resources on the side.

Optionally, the first node further includes:

A receiving module, configured for the first node as a distributed unit (DU) side to not receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

The embodiment of the present disclosure is a product embodiment corresponding to the foregoing method embodiment 1, so it will not be repeated here. For details, please refer to the foregoing embodiment 1.

Please refer to FIG. 9. FIG. 9 is a schematic structural diagram of a first node according to Embodiment 4 of the present disclosure. The first node 90 includes:

The receiving module 91 is configured to, as the distributed unit (DU) side, the first node does not receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

In the embodiments of the present disclosure, the priority to ensure random access resources on the DU side is to ensure the correct understanding of some legacy UEs. For other uplink resources on the DU side, it is necessary to yield to the random access resources on the MT side, that is, the random access resources on the MT side have priority over other uplink resources on the DU side to ensure the transmission of the backhaul link on the MT side. In addition, the DU side does not receive uplink resources within N symbols before the random access resource on the MT side (except for the random access resource on the DU side) for the purpose of uplink and downlink conversion.

Does not overlap with the first synchronization signal/broadcast channel block;

The embodiment of the present disclosure is a product embodiment corresponding to the second embodiment of the above method, so it will not be repeated here. For details, please refer to the second embodiment above.

Please refer to FIG. 10, which is a schematic structural diagram of another first node provided by Embodiment 5 of the present disclosure. The first node 100 includes a processor 101, a memory 102, and is stored on the memory 102 and can be stored in the A computer program running on the processor 101; when the processor 101 executes the computer program, the following steps are implemented:

Determine the effective random access resource on the MT side, where the effective random access resource on the MT side meets at least one of the following conditions:

Does not overlap with the first synchronization signal/broadcast channel block;

The first node is a node with access and/or backhaul capabilities.

Optionally, the processor 101 may also implement the following steps when executing the computer program:

Overlap with the first effective random access resource;

The specific working process of the embodiment of the present disclosure is the same as that in the first embodiment of the method, so it will not be repeated here. For details, please refer to the description of the method steps in the first embodiment.

Please refer to FIG. 11, which is a schematic structural diagram of another first node provided by Embodiment 6 of the present disclosure. The first node 110 includes a processor 111, a memory 112, and is stored on the memory 112 and can be stored in the A computer program running on the processor 111; when the processor 111 executes the computer program, the following steps are implemented:

Overlap with the first effective random access resource;

Does not overlap with the first synchronization signal/broadcast channel block;

The specific working process of the embodiment of the present disclosure is consistent with that in the second embodiment of the method, so it will not be repeated here. For details, please refer to the description of the method steps in the second embodiment.

The seventh embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it implements any of the steps or steps in the method for determining effective random access resources in the first embodiment. The steps in any signal receiving method in the second embodiment above are implemented. For details, please refer to the description of the method steps in the corresponding embodiment above.

The terminal in the embodiments of the present disclosure may be a wireless terminal or a wired terminal. A wireless terminal may be a device that provides voice and/or other service data connectivity to users, a handheld device with wireless connection function, or a wireless modem connected to it. Other processing equipment. A wireless terminal can communicate with one or more core networks via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal For example, they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (Personal Digital Assistant, PDA) and other equipment. Wireless terminals can also be called systems, subscriber units (Subscriber Unit), subscriber stations (Subscriber Station), mobile stations (Mobile Station), mobile stations (Mobile), remote stations (Remote Station), remote terminals (Remote Terminal), The access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), and terminal (User Device or User Equipment) are not limited here.

The above-mentioned computer-readable storage medium includes permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices.

The above are optional implementations of the present disclosure. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present disclosure, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present disclosure.

Claims

A method for determining effective random access resources, applied to the first node, includes:

Determine a first effective random access resource, where the first effective random access resource is a first random access resource meeting a first preset condition, and the first preset condition includes at least one of the following:

Does not overlap with the second random access resource and/or the second effective random access resource;

Does not overlap with the first synchronization signal/broadcast channel block;

The number of symbols located after the second random access resource and separated from the second random access resource and/or the second effective random access resource is greater than or equal to N, where N is greater than Or an integer equal to 0.
The method according to claim 1, wherein the first node is a node with access and/or backhaul capabilities.
The method according to claim 1, wherein the second random access resource and/or the second effective random access resource are located in a third resource or a fourth resource.
The method according to claim 3, wherein the third resource is a UL hard resource on the DU side where the first node is a distributed unit; and the fourth resource is the first node as a distributed unit. UL soft resources are available for uplink on the DU side.
The method according to claim 1, wherein the second random access resource and/or the second effective random access resource comprise: random access resources configured to the terminal, and/or configured to a lower level Random access resources of a node.
The method according to claim 1, wherein the first synchronization signal/broadcast channel block is located in a fifth resource or a sixth resource.
The method according to claim 6, wherein the fifth resource is a required downlink DL Hard resource on the DU side of the first node as a distributed unit; and the sixth resource is the first node as a distributed unit DL soft resources are available in the downlink on the DU side.
The method according to claim 1, wherein the first synchronization signal/broadcast channel block resource comprises: a synchronization signal/broadcast channel block resource for terminal access and measurement sent by the first node, and/or , The synchronization signal/broadcast channel block resource used for inter-node discovery sent by the first node.
The method according to claim 1, further comprising:

The first node serving as the distributed unit DU side does not receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

The number of symbols located before the first effective random access resource and separated from the first effective random access resource is less than N, where N is an integer greater than or equal to 0.
A signal receiving method, applied to a first node, includes:

The first node serving as the distributed unit DU side does not receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

The number of symbols located before the first effective random access resource and separated from the first effective random access resource is less than N, where N is an integer greater than or equal to 0.
The signal receiving method according to claim 10, wherein the first effective random access resource is a first random access resource that satisfies a first preset condition, and the first preset condition includes at least one of the following:

Does not overlap with the second random access resource and/or the second effective random access resource;

Does not overlap with the first synchronization signal/broadcast channel block;

The number of symbols located after the second random access resource and separated from the second random access resource and/or the second effective random access resource is greater than or equal to N, where N is greater than Or an integer equal to 0.
A first node, including:

The determining module is configured to determine a first effective random access resource, where the first effective random access resource is a first random access resource that meets a first preset condition, and the first preset condition includes at least one of the following :

Does not overlap with the second random access resource and/or the second effective random access resource;

Does not overlap with the first synchronization signal/broadcast channel block resource;

The number of symbols located after the second random access resource and separated from the second random access resource and/or the second effective random access resource is greater than or equal to N, where N is greater than Or an integer equal to 0.
A first node, including:

The receiving module is used for the first node as the distributed unit DU side not to receive uplink signals on uplink resources that meet a second preset condition, and the second preset condition includes at least one of the following:

Overlap with the first effective random access resource;

The number of symbols located before the first effective random access resource and separated from the first effective random access resource is less than N, where N is an integer greater than or equal to 0.
A first node, comprising a memory, a processor, and a computer program stored on the memory and running on the processor; wherein the processor executes the computer program as claimed in claims 1 to 9 The method for determining effective random access resources according to any one of the methods or the signal receiving method according to claim 10 or 11.
A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for determining effective random access resources according to any one of claims 1 to 9 is implemented Steps or implement the steps in the signal receiving method according to claim 10 or 11.