WO2020168572A1 - Procédé, appareil, système et dispositif de détermination d'informations et support d'enregistrement - Google Patents

Procédé, appareil, système et dispositif de détermination d'informations et support d'enregistrement Download PDF

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Publication number
WO2020168572A1
WO2020168572A1 PCT/CN2019/075948 CN2019075948W WO2020168572A1 WO 2020168572 A1 WO2020168572 A1 WO 2020168572A1 CN 2019075948 W CN2019075948 W CN 2019075948W WO 2020168572 A1 WO2020168572 A1 WO 2020168572A1
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WIPO (PCT)
Prior art keywords
configuration information
prach configuration
prach
base station
iab base
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PCT/CN2019/075948
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English (en)
Chinese (zh)
Inventor
贺传峰
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201980073875.5A priority Critical patent/CN112970322B/zh
Priority to PCT/CN2019/075948 priority patent/WO2020168572A1/fr
Publication of WO2020168572A1 publication Critical patent/WO2020168572A1/fr
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • This application relates to the field of communications technology, and in particular to an information determination method, device, system, equipment and storage medium.
  • the IAB (Integrated Access and Backhaul) base station integrates the wireless access link and the wireless backhaul link.
  • the wireless access link is between the UE (User Equipment) and the IAB base station
  • the wireless backhaul link is the communication link between the IAB base station and other IAB base stations for data backhaul.
  • the UE can access the IAB base station, and the IAB base station can access other IAB base stations.
  • the UE can send RACH (Random Access Channel) on the corresponding PRACH resource according to the PRACH (physical Random Access Channel) configuration information sent by the first IAB base station to access the first IAB base station.
  • RACH Random Access Channel
  • the first IAB base station may also send RACH on the corresponding PRACH resource based on the PRACH configuration information sent by the second IAB base station to access the second IAB base station.
  • the first IAB base station and the second IAB base station may be configured with the same PRACH resource.
  • the PRACH resources configured by the first IAB base station and the second IAB base station need to be separated in the time domain. For this reason, a certain IAB base station in the communication system can generally configure PRACH resources for all IAB base stations in the network.
  • this implementation method has greater implementation complexity and is more difficult to implement.
  • the embodiments of the present application provide an information determination method, device, system, equipment, and storage medium, which can solve the problem of relatively difficult implementation of related technologies.
  • the specific technical solutions are as follows:
  • an information determination method is provided, which is applied to a first IAB base station, and the method includes:
  • the first PRACH configuration information is PRACH configuration information used by the terminal equipment UE
  • the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • the determining second PRACH configuration information according to the first PRACH configuration information includes:
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station.
  • the determining, according to the first PRACH configuration information, the PRACH configuration information corresponding to the first PRACH configuration information from a reference PRACH configuration information set as the second PRACH configuration information includes:
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the determining second PRACH configuration information according to the first PRACH configuration information includes:
  • the PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to different reference mapping modes.
  • the reference mapping mode includes an extraction mode and a non-extraction mode.
  • the extraction mode is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information for time domain offset, and the non-extraction mode To perform a time domain offset on all time units where the PRACH resource in the first PRACH configuration information is located.
  • the performing time domain offset on the time unit in the first PRACH configuration information according to the reference mapping manner corresponding to the first PRACH configuration information includes:
  • time domain offset is performed on the time unit in the first PRACH configuration information.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • the receiving PRACH configuration information of the first physical random access channel includes:
  • an information determination method is provided, which is applied to a second IAB base station, and the method includes:
  • the first PRACH configuration information is PRACH configuration information used by the terminal equipment UE
  • the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • the determining second PRACH configuration information according to the first PRACH configuration information includes:
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station.
  • the determining, according to the first PRACH configuration information, the PRACH configuration information corresponding to the first PRACH configuration information from a reference PRACH configuration information set as the second PRACH configuration information includes:
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the determining second PRACH configuration information according to the first PRACH configuration information includes:
  • the PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to different reference mapping modes.
  • the reference mapping mode includes an extraction mode and a non-extraction mode.
  • the extraction mode is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information to perform time domain offset, and the non-extraction mode To perform a time domain offset on all time units where the PRACH resource in the first PRACH configuration information is located.
  • the performing time domain offset on the time unit in the first PRACH configuration information according to the reference mapping manner corresponding to the first PRACH configuration information includes:
  • time domain offset is performed on the time unit in the first PRACH configuration information.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • the sending the first physical random access channel PRACH configuration information includes:
  • an information determining device which is configured in a first IAB base station, and the device includes:
  • a receiving module configured to receive the first physical random access channel PRACH configuration information
  • a first determining module configured to determine second PRACH configuration information according to the first PRACH configuration information
  • the first PRACH configuration information is PRACH configuration information used by the terminal equipment UE
  • the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • the first determining module is used to:
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station.
  • the first determining module is used to:
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the first determining module is used to:
  • the PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to different reference mapping modes.
  • the reference mapping mode includes an extraction mode and a non-extraction mode.
  • the extraction mode is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information for time domain offset, and the non-extraction mode To perform a time domain offset on all time units where the PRACH resource in the first PRACH configuration information is located.
  • the first determining module is used to:
  • time domain offset is performed on the time unit in the first PRACH configuration information.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • the receiving module is used to:
  • an information determining device which is configured in a second IAB base station, and the device includes:
  • a sending module configured to send the first physical random access channel PRACH configuration information
  • a second determining module configured to determine second PRACH configuration information according to the first PRACH configuration information
  • the first PRACH configuration information is PRACH configuration information used by the terminal equipment UE
  • the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • the second determining module is used to:
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station.
  • the second determining module is used to:
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the second determining module is used to:
  • the PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to different reference mapping modes.
  • the reference mapping mode includes an extraction mode and a non-extraction mode.
  • the extraction mode is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information to perform time domain offset, and the non-extraction mode To perform a time domain offset on all time units where the PRACH resource in the first PRACH configuration information is located.
  • the second determining module is used to:
  • time domain offset is performed on the time unit in the first PRACH configuration information.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • the sending module is used to:
  • a communication system including a first access backhaul integrated IAB base station and a second IAB base station.
  • the first IAB base station includes the device described in the third aspect, and the second IAB base station includes a fourth The device of any one of aspects 9-16.
  • a first IAB base station in a sixth aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement the foregoing The method of any one of the first aspect.
  • a second IAB base station in a seventh aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement the foregoing The method of any one of the second aspect.
  • a computer-readable storage medium stores instructions, wherein the instructions are executed by a processor to implement the method described in the first aspect.
  • a computer-readable storage medium stores instructions, wherein the instructions are executed by a processor to implement the method described in the second aspect.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method described in the first aspect.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method described in the second aspect.
  • the first IAB base station receives first PRACH configuration information, where the first PRACH configuration information is used by the UE to initiate RACH use. According to the first PRACH configuration information, re-determine a PRACH configuration information for the first IAB base station. Since the PRACH resource corresponding to the first PRACH configuration information is different from the PRACH resource corresponding to the second PRACH configuration information, even if the first PRACH configuration information An IAB base station and a second IAB base station are configured with the same PRACH resources, and it will not happen that the first IAB base station receives the RACH of the UE and sends the RACH to the second IAB on the same PRACH resource, thereby avoiding resource conflicts The problem. This avoids the need for a certain IAB base station to configure PRACH for all IAB base stations in the network, which simplifies the difficulty of implementation.
  • Fig. 1 is a schematic diagram of an application scenario provided by an exemplary embodiment of the present application
  • Fig. 2 is a flowchart of an information indication method provided by another exemplary embodiment of the present application.
  • Fig. 3 is a flowchart of an information indication method provided by another exemplary embodiment of the present application.
  • Fig. 4 is a flowchart of an information indication method provided by another exemplary embodiment of the present application.
  • Fig. 5 is a flowchart of an information indicating device provided by another exemplary embodiment of the present application.
  • Fig. 6 is a flowchart of an information indicating device provided by another exemplary embodiment of the present application.
  • Fig. 7 is a structural block diagram of a first IAB base station provided by another exemplary embodiment of the present application.
  • Fig. 8 is a structural block diagram of a second IAB base station provided by another exemplary embodiment of the present application.
  • PRACH configuration information PRACH resource configuration information.
  • the Rel-15NR (New Radio) technology defines PRACH resources configured for random access of the UE, including 256 configurations, and each configuration corresponds to one type of PRACH configuration information.
  • each kind of PRACH configuration information includes preamble format, period, radio frame offset, subframe number in the radio frame, start symbol in the subframe, number of PRACH slots in the subframe, PRACH in the PRACH slot
  • the number of opportunities and the duration of PRACH opportunities can be used to determine the time, frequency, and code information of PRACH resources.
  • the configuration information of the PRACH resource of the unpaired spectrum of FR2 (Frequency range, frequency band 2) is shown in Table 1 below, where PRACHConfig.Index is the index of PRACH configuration information, which is used to indicate a type of PRACH configuration information.
  • An IAB base station refers to a base station that provides users with wireless access, and usually requires a backhaul link to connect to a core network or other IAB base stations to facilitate data backhaul.
  • wireless backhaul such as microwave backhaul.
  • network capacity, complexity, and delay requirements are gradually increasing, and the number of mobile base stations is gradually increasing. Therefore, the application range of wireless backhaul is gradually expanding, making IAB base stations easier to deploy in dense and complex The scenario reduces the burden of deploying wired transmission networks.
  • the embodiments of this application provide a method for determining information.
  • the method can determine the PRACH configuration information used by the IAB base station according to the PRACH configuration information used by the UE, that is, the PRACH configuration information used by the UE and the PRACH used by the IAB base station.
  • the configuration information is different, so that the PRACH resources used for IAB base station access and the PRACH resources used for UE access do not overlap in the time domain.
  • Fig. 1 is a schematic diagram showing an implementation environment according to an exemplary embodiment.
  • the implementation environment may include the first IAB base station 110, the second IAB base station 120, and the UE 130.
  • the UE 130 can access the IAB base station that provides services for itself.
  • the UE can access the first IAB base station, and the first IAB base station 110 can access the second IAB base station 120 to communicate with the second IAB base station.
  • the wireless backhaul link between 120 performs data backhaul.
  • Figure 2 is a flowchart of an information determination method provided by an exemplary embodiment of the present application.
  • the information determination method can be applied to the implementation environment shown in Figure 1 above.
  • the method can include the following implementation steps :
  • Step 201 The second IAB base station sends first PRACH configuration information, where the first PRACH configuration information is configuration information used by the UE.
  • the second IAB base station may indicate which PRACH resource the UE uses to initiate RACH. For this purpose, the second IAB base station sends the first PRACH configuration information.
  • the second IAB base station may broadcast the first PRACH configuration information, that is, the second IAB base station may send the first PRACH configuration information in a broadcast manner.
  • sending the first PRACH configuration information by the second IAB base station may include: the second IAB base station sending system information, and the system information includes the first PRACH configuration information.
  • the second IAB base station may carry the first PRACH configuration information through system information.
  • the second IAB base station may broadcast system information, and the system information includes the first PRACH configuration information. That is, the second IAB base station may send the system information in a broadcast manner, and carry the first PRACH configuration information in the system information.
  • the UE served by the second IAB base station after receiving the first PRACH configuration information, it can initiate a RACH on the corresponding PRACH resource according to the first PRACH configuration information to access the second IAB base station.
  • Step 202 The first IAB base station receives the first PRACH configuration information.
  • the first IAB base station may receive the first PRACH configuration information in a periodic monitoring manner. For example, it may refer to Duration: monitor the first PRACH configuration information, where the reference duration can be set according to actual needs.
  • receiving the first PRACH configuration information by the first IAB base station may include: receiving system information by the first IAB base station, and the system information includes the first PRACH configuration information. That is, when the second IAB base station carries the first PRACH configuration information through the system information, the first IAB base station receives the system information and reads the first PRACH configuration information from the system information.
  • the first IAB base station may receive the first PRACH configuration information in a periodic monitoring manner.
  • the system information may be monitored every reference duration, and then The first PRACH configuration information is read from the system information, where the reference duration can be set according to actual needs.
  • Step 203 The first IAB base station determines second PRACH configuration information according to the first PRACH configuration information, where the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • resource conflicts are likely to occur.
  • the PRACH resource corresponding to the first PRACH configuration information it is also possible to use the PRACH resource corresponding to the first PRACH configuration information to initiate RACH to request access to the first IAB base station.
  • the first IAB base station uses The PRACH resource corresponding to the first PRACH configuration information initiates a RACH to request access to the second IAB base station, which will cause the RACH to be sent and received on the same PRACH resource, thereby causing resource conflicts.
  • the first IAB base station re-determines a second PRACH configuration information according to the first PRACH configuration information, where the re-determined second PRACH configuration information is used for the first IAB base station to initiate RACH, that is, the first The IAB base station may initiate a RACH on the PRACH resource corresponding to the second PRACH configuration information to request access to the second IAB base station.
  • the second PRACH configuration information is different from the first PRACH configuration information, that is, the PRACH resource corresponding to the second PRACH configuration information is different from the PRACH resource corresponding to the first PRACH configuration information. Therefore, even if the first IAB base station and the second IAB base station The configured PRACH resources are the same, and it can also be guaranteed that the first IAB base station will not receive the RACH sent by the UE and initiate the RACH to the second IAB base station on the same PRACH resource, avoiding the possibility of PRACH resources overlapping in the time domain. The problem.
  • the second PRACH configuration information may also be determined according to the first PRACH configuration information, so as to determine which PRACH resource to receive the RACH initiated by the first IAB base station.
  • the specific implementation is the same as the implementation process of determining the second PRACH configuration information by the first IAB base station according to the first PRACH configuration information.
  • the first IAB base station receives first PRACH configuration information, and the first PRACH configuration information is used by the UE to initiate RACH use. According to the first PRACH configuration information, re-determine a PRACH configuration information for the first IAB base station. Since the PRACH resource corresponding to the first PRACH configuration information is different from the PRACH resource corresponding to the second PRACH configuration information, even if the first PRACH configuration information An IAB base station and a second IAB base station are configured with the same PRACH resources, and it will not happen that the first IAB base station receives the RACH of the UE and sends the RACH to the second IAB on the same PRACH resource, thereby avoiding resource conflicts The problem. This avoids the need for a certain IAB base station to configure PRACH for all IAB base stations in the network, which simplifies the difficulty of implementation.
  • FIG. 3 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • the information determination method may be applied to the implementation environment shown in FIG. 1 above.
  • the method may include the following implementation steps:
  • Step 301 The second IAB base station sends first PRACH configuration information, where the first PRACH configuration information is PRACH configuration information used by the UE.
  • the second IAB base station may indicate which PRACH resource the UE uses to initiate RACH. For this purpose, the second IAB base station sends the first PRACH configuration information.
  • the second IAB base station may broadcast the first PRACH configuration information, that is, the second IAB base station may send the first PRACH configuration information in a broadcast manner.
  • sending the first PRACH configuration information by the second IAB base station may include: the second IAB base station sending system information, and the system information includes the first PRACH configuration information.
  • the second IAB base station may carry the first PRACH configuration information through system information.
  • the second IAB base station may broadcast system information, and the system information includes the first PRACH configuration information. That is, the second IAB base station may send the system information in a broadcast manner, and carry the first PRACH configuration information in the system information.
  • the UE served by the second IAB base station after receiving the first PRACH configuration information, it can initiate a RACH on the corresponding PRACH resource according to the first PRACH configuration information to access the second IAB base station.
  • Step 302 The first IAB base station receives the first PRACH configuration information.
  • the first IAB base station may receive the first PRACH configuration information in a periodic monitoring manner, for example, every reference period , Monitor the first PRACH configuration information, where the reference time length can be set according to actual needs, where the reference time length can be set according to actual needs.
  • receiving the first PRACH configuration information by the first IAB base station may include: the first IAB base station receiving system information, and the system information includes the first PRACH configuration information. That is, when the second IAB base station carries the first PRACH configuration information through the system information, the first IAB base station receives the system information and reads the first PRACH configuration information from the system information.
  • the first IAB base station can receive the system information in a periodic monitoring mode. For example, it can monitor the system information every reference period, and then download the system information from the system.
  • the first PRACH configuration information is read from the information, where the reference duration can be set according to actual requirements.
  • Step 303 The first IAB base station determines the PRACH configuration information corresponding to the first PRACH configuration information from the reference PRACH configuration information set as the second PRACH configuration information according to the first PRACH configuration information, and the second PRACH configuration information PRACH configuration information used by the first IAB base station.
  • resource conflicts are likely to occur.
  • the PRACH resource corresponding to the first PRACH configuration information it is also possible to use the PRACH resource corresponding to the first PRACH configuration information to initiate RACH to request access to the first IAB base station.
  • the first IAB base station uses The PRACH resource corresponding to the first PRACH configuration information initiates a RACH to request access to the second IAB base station, which will cause both the RACH to be sent and the RACH to be received on the same PRACH resource, thereby causing resource conflicts.
  • the first IAB base station re-determines a second PRACH configuration information according to the first PRACH configuration information, where the re-determined second PRACH configuration information is used for the first IAB base station to initiate RACH, that is, the first The IAB base station may initiate a RACH on the PRACH resource corresponding to the second PRACH configuration information to request access to the second IAB base station.
  • the first IAB base station may determine the PRACH configuration information corresponding to the first PRACH configuration information from the reference PRACH configuration information set according to the first PRACH configuration information to obtain the second PRACH configuration information.
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station, which can be set according to actual requirements.
  • the first IAB base station can determine from the reference PRACH configuration information set that it is related to the first PRACH configuration information set.
  • the configuration information has corresponding PRACH configuration information, thereby obtaining the second PRACH configuration information.
  • the specific implementation of determining the PRACH configuration information corresponding to the first PRACH configuration information from the reference PRACH configuration information set may include: according to the first PRACH configuration information The corresponding relationship between the first index of the configuration information and the reference is determined, the corresponding second index in the reference PRACH configuration information set is determined, and the PRACH configuration information corresponding to the second index is used as the second PRACH configuration information.
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the corresponding relationship between the index of the first PRACH configuration information and the index of the corresponding PRACH configuration information in the reference PRACH configuration information set can be indicated by referring to the corresponding relationship.
  • the PRACH configuration information set to which the first PRACH coordination information belongs is shown in Table 2 (in fact, the PRACH configuration information set to which the first PRACH configuration information belongs includes the PRACH configured for random access of the UE in the Rel-15NR technology. Configuration information, including 256 configurations), the reference PRACH configuration information set is shown in Table 3, the index of the first PRACH configuration information is index0, and the reference correspondence indicates that index0 corresponds to index10 in the reference PRACH configuration information set.
  • the first IAB base station uses the PRACH configuration information corresponding to index 10 in the reference PRACH configuration information set as the second PRACH configuration information.
  • the number of configuration information included in the reference PRACH configuration information set may be the same as the number of configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs, or the number of configuration information included in the reference PRACH configuration information set may also be It is less than the number of configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs, and specifically includes the following two situations:
  • the first situation: the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set may have a one-to-one correspondence. That is, the index in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to the only index of the reference PRACH configuration information set. At this time, the number of configuration information included in the reference PRACH configuration information set is the same as that of the first PRACH configuration information set. The number of configuration information in the PRACH configuration information set to which the configuration information belongs is the same, that is, the reference PRACH configuration information set also includes 256 types of configuration information.
  • the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set may also have a many-to-one correspondence. That is, multiple indexes in the PRACH configuration information set to which the first PRACH configuration information belongs correspond to one index of the reference PRACH configuration information set.
  • the number of configuration information included in the reference PRACH configuration information set is less than the The number of coordination information in the PRACH configuration information set to which the first PRACH configuration information belongs, that is, the number of configuration information included in the reference PRACH configuration information set is less than 256.
  • the PRACH configuration information set to which the first PRACH configuration information belongs may exist in the form of a table.
  • the PRACH configuration information set to which the first PRACH configuration information belongs can be called a PRACH configuration information table.
  • the reference PRACH configuration information set may also exist in the form of a table. In this case, the reference PRACH configuration information set may be referred to as a reference PRACH configuration information table.
  • the second PRACH configuration information is different from the first PRACH configuration information, that is, the PRACH resource corresponding to the second PRACH configuration information is different from the PRACH resource corresponding to the first PRACH configuration information. Therefore, even if the first IAB base station and the second IAB base station The configured PRACH resources are the same, and it can also be guaranteed that the first IAB base station will not receive the RACH sent by the UE and initiate the RACH to the second IAB base station on the same PRACH resource, avoiding the possibility of PRACH resources in the time domain. The problem of overlap. In addition, there is no need to introduce new signaling to indicate the second PRACH configuration information, which reduces signaling overhead.
  • the second PRACH configuration information may also be determined according to the first PRACH configuration information, so as to determine which PRACH resource to receive the RACH initiated by the first IAB base station.
  • the specific implementation is the same as the implementation process of determining the second PRACH configuration information by the first IAB base station according to the first PRACH configuration information.
  • the first IAB base station receives first PRACH configuration information, and the first PRACH configuration information is used by the UE to initiate RACH use. According to the first PRACH configuration information, re-determine a PRACH configuration information for the first IAB base station. Since the PRACH resource corresponding to the first PRACH configuration information is different from the PRACH resource corresponding to the second PRACH configuration information, even if the first PRACH configuration information An IAB base station and a second IAB base station are configured with the same PRACH resources, and it will not happen that the first IAB base station receives the RACH of the UE and sends the RACH to the second IAB on the same PRACH resource, thereby avoiding resource conflicts The problem. This avoids the need for a certain IAB base station to configure PRACH for all IAB base stations in the network, which simplifies the difficulty of implementation.
  • FIG. 4 is a flowchart of an information determination method provided by another exemplary embodiment of the present application.
  • the information determination method may be applied to the implementation environment shown in FIG. 1 above, and the method may include the following implementation steps:
  • Step 401 The second IAB base station sends first PRACH configuration information, where the first PRACH configuration information is PRACH configuration information used by the UE.
  • the second IAB base station may indicate which PRACH resource the UE uses to initiate RACH. For this purpose, the second IAB base station sends the first PRACH configuration information.
  • the second IAB base station may broadcast the first PRACH configuration information, that is, the second IAB base station may send the first PRACH configuration information in a broadcast manner.
  • sending the first PRACH configuration information by the second IAB base station may include: the second IAB base station sending system information, and the system information includes the first PRACH configuration information.
  • the second IAB base station may carry the first PRACH configuration information through system information.
  • the second IAB base station may broadcast system information, and the system information includes the first PRACH configuration information. That is, the second IAB base station may send the system information in a broadcast manner, and carry the first PRACH configuration information in the system information.
  • the UE served by the second IAB base station after receiving the first PRACH configuration information, it can initiate a RACH on the corresponding PRACH resource according to the first PRACH configuration information to access the second IAB base station.
  • Step 402 The first IAB base station receives the first PRACH configuration information.
  • the first IAB base station may receive the first PRACH configuration information in a periodic monitoring manner, for example, every reference period , Monitor the first PRACH configuration information, where the reference duration can be set according to actual requirements, and the reference duration can be set according to actual requirements.
  • receiving the first PRACH configuration information by the first IAB base station may include: the first IAB base station receiving system information, and the system information includes the first PRACH configuration information. That is, when the second IAB base station carries the first PRACH configuration information through the system information, the first IAB base station receives the system information and reads the first PRACH configuration information from the system information.
  • the first IAB base station can receive the system information in a periodic monitoring mode. For example, it can monitor the system information every reference period, and then download the system information from the system.
  • the first PRACH configuration information is read from the information, and the reference duration can be set according to actual needs.
  • Step 403 The first IAB base station performs time domain offset on the time unit in the first PRACH configuration information according to the reference mapping mode corresponding to the first PRACH configuration information, and uses the time unit after the time domain offset to determine the first 2.
  • resource conflicts are likely to occur.
  • the PRACH resource corresponding to the first PRACH configuration information it is also possible to use the PRACH resource corresponding to the first PRACH configuration information to initiate RACH to request access to the first IAB base station.
  • the first IAB base station uses The PRACH resource corresponding to the first PRACH configuration information initiates a RACH to request access to the second IAB base station, which will cause the RACH to be sent and received on the same PRACH resource, thereby causing resource conflicts.
  • the first IAB base station re-determines a second PRACH configuration information according to the first PRACH configuration information, where the re-determined second PRACH configuration information is used for the first IAB base station to initiate RACH, that is, the first The IAB base station may initiate a RACH on the PRACH resource corresponding to the second PRACH configuration information to request access to the second IAB base station.
  • the first IAB base station performs time domain offset on the time unit in the first PRACH configuration information according to the reference mapping mode corresponding to the first PRACH configuration information, and uses the time unit after the time domain offset as the first 2.
  • Time unit in PRACH configuration information may also use the configuration information other than the time unit in the first PRACH configuration information as part of the information in the second PRACH configuration information, that is, the first PRACH configuration information
  • the second PRACH configuration information may include the time unit after the time domain offset and other configuration information except the time unit in the first PRACH configuration information.
  • this application does not limit the specific content of the configuration information other than the time unit after the time domain offset in the second PRACH configuration information.
  • it may also include the first PRACH configuration information other than the time unit. Part of the configuration information, etc.
  • the reference mapping method includes an extraction method and a non-extraction method.
  • the extraction method is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information to perform time domain offset
  • the non-extraction method is to perform the time domain offset for the first PRACH All time units where the PRACH resource is located in the configuration information are time-domain offset.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • At least two PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs correspond to different reference mapping modes, which can prevent the reference mapping mode corresponding to a certain PRACH configuration information from being unsuitable for another PRACH configuration information .
  • the interval of the time unit where the PRACH resource is located in the first PRACH configuration information is 1, if the corresponding reference mapping method is to subtract 1 from all time units, the obtained second PRACH configuration information is in time with the first PRACH configuration information. There will still be overlaps in the domains, so this reference mapping method is not applicable to the first PRACH configuration information, so different reference mapping methods can be set for at least two PRACH configuration information.
  • the reference mapping mode corresponding to the first PRACH configuration information is determined from the reference mapping mode set, and the reference mapping mode set is used to record the reference mapping modes corresponding to different PRACH configuration information; according to the determined reference mapping mode, the first PRACH configuration information
  • a time unit in the PRACH configuration information is time-domain offset.
  • the reference mapping mode set may exist in the form of a table.
  • the reference mapping mode set may be referred to as a reference mapping mode table.
  • the reference mapping mode table may be as shown in Table 4.
  • the index of the first PRACH configuration information is index 0
  • the corresponding reference extraction mode is mode 1
  • the time domain offset is -1.
  • the method 1 refers to extracting all the time-slot information where the PRACH resource is located from the first PRACH configuration information for time domain offset
  • the obtained second PRACH configuration information is as shown in Table 5 below:
  • a certain type of PRACH configuration information may correspond to a unique reference mapping manner, or, multiple types of PRACH configuration information may correspond to a reference mapping manner, which is not limited in the embodiment of the present application.
  • the second PRACH configuration information is different from the first PRACH configuration information, that is, the PRACH resource corresponding to the second PRACH configuration information is different from the PRACH resource corresponding to the first PRACH configuration information. Therefore, even if the first IAB base station and the second IAB base station The configured PRACH resources are the same, and it can also be guaranteed that the first IAB base station will not receive the RACH sent by the UE and initiate the RACH to the second IAB base station on the same PRACH resource, avoiding the possibility of PRACH resources overlapping in the time domain. The problem. In addition, there is no need to introduce new signaling to indicate the second PRACH configuration information, which reduces signaling overhead.
  • the first IAB base station receives first PRACH configuration information, and the first PRACH configuration information is used by the UE to initiate RACH use. According to the first PRACH configuration information, re-determine a PRACH configuration information for the first IAB base station. Since the PRACH resource corresponding to the first PRACH configuration information is different from the PRACH resource corresponding to the second PRACH configuration information, even if the first PRACH configuration information An IAB base station and a second IAB base station are configured with the same PRACH resources, and it will not happen that the first IAB base station receives the RACH of the UE and sends the RACH to the second IAB on the same PRACH resource, thereby avoiding resource conflicts The problem. This avoids the need for a certain IAB base station to configure PRACH for all IAB base stations in the network, which simplifies the difficulty of implementation.
  • a new type of PRACH configuration information may be newly defined and new signaling may be introduced, and the introduced new signaling may be used to indicate the index of the newly defined PRACH configuration information.
  • prach-ConfigurationIndex-IAB information is added to the existing RACH configuration signaling to indicate the new RACH configuration index
  • the new RACH configuration index is the index of the newly defined PRACH configuration information.
  • prach-ConfigurationIndex-IAB INTEGER (0..255) in the standard prach-ConfigurationIndex-IAB INTEGER (0..255) in the standard.
  • Fig. 5 is a block diagram of an information determining apparatus provided by another exemplary embodiment of the present application, which may be configured in a first IAB base station, and the apparatus may include:
  • the receiving module 510 is configured to receive first physical random access channel PRACH configuration information
  • the first determining module 520 is configured to determine second PRACH configuration information according to the first PRACH configuration information
  • the first PRACH configuration information is PRACH configuration information used by the terminal equipment UE
  • the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • the first determining module 520 is configured to:
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station.
  • the first determining module 520 is configured to:
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the first determining module 520 is configured to:
  • the PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to different reference mapping modes.
  • the reference mapping mode includes an extraction mode and a non-extraction mode.
  • the extraction mode is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information to perform time domain offset, and the non-extraction mode To perform a time domain offset on all time units where the PRACH resource in the first PRACH configuration information is located.
  • the first determining module 520 is configured to:
  • time domain offset is performed on the time unit in the first PRACH configuration information.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • the receiving module 510 is configured to:
  • the first IAB base station receives first PRACH configuration information, and the first PRACH configuration information is used by the UE to initiate RACH use. According to the first PRACH configuration information, re-determine a PRACH configuration information for the first IAB base station. Since the PRACH resource corresponding to the first PRACH configuration information is different from the PRACH resource corresponding to the second PRACH configuration information, even if the first PRACH configuration information An IAB base station and a second IAB base station are configured with the same PRACH resources, and it will not happen that the first IAB base station receives the RACH of the UE and sends the RACH to the second IAB on the same PRACH resource, thereby avoiding resource conflicts The problem. This avoids the need for a certain IAB base station to configure PRACH for all IAB base stations in the network, which simplifies the difficulty of implementation.
  • Fig. 6 is a block diagram of an information determining apparatus provided by another exemplary embodiment of the present application, which may be configured in a second IAB base station, and the apparatus may include:
  • the sending module 610 is configured to send the first physical random access channel PRACH configuration information
  • the second determining module 620 is configured to determine second PRACH configuration information according to the first PRACH configuration information
  • the first PRACH configuration information is PRACH configuration information used by the terminal equipment UE
  • the second PRACH configuration information is PRACH configuration information used by the first IAB base station.
  • the second determining module 620 is configured to:
  • the reference PRACH configuration information set includes PRACH configuration information that can be used by the first IAB base station.
  • the second determining module 620 is configured to:
  • the reference correspondence is used to indicate the correspondence between the index in the PRACH configuration information set to which the first PRACH configuration information belongs and the index of the reference PRACH configuration information set.
  • the second determining module 620 is configured to:
  • the PRACH configuration information in the PRACH configuration information set to which the first PRACH configuration information belongs corresponds to different reference mapping modes.
  • the reference mapping mode includes an extraction mode and a non-extraction mode.
  • the extraction mode is to extract a part of the time unit where the PRACH resource is located from the first PRACH configuration information to perform time domain offset, and the non-extraction mode To perform a time domain offset on all time units where the PRACH resource in the first PRACH configuration information is located.
  • the second determining module 620 is configured to:
  • time domain offset is performed on the time unit in the first PRACH configuration information.
  • the time unit includes at least one of radio frame information, subframe information, time slot information, start symbol, and random access opportunity.
  • the sending module 610 is used to:
  • the first IAB base station receives first PRACH configuration information, and the first PRACH configuration information is used by the UE to initiate RACH use. According to the first PRACH configuration information, re-determine a PRACH configuration information for the first IAB base station. Since the PRACH resource corresponding to the first PRACH configuration information is different from the PRACH resource corresponding to the second PRACH configuration information, even if the first PRACH configuration information An IAB base station and a second IAB base station are configured with the same PRACH resources, and it will not happen that the first IAB base station receives the RACH of the UE and sends the RACH to the second IAB on the same PRACH resource, thereby avoiding resource conflicts The problem. This avoids the need for a certain IAB base station to configure PRACH for all IAB base stations in the network, which simplifies the difficulty of implementation.
  • FIG. 7 shows a schematic structural diagram of a first IAB base station provided by an exemplary embodiment of the present application.
  • the first IAB base station includes: a processor 701, a receiver 702, a transmitter 703, a memory 704, and a bus 705 .
  • the processor 701 includes one or more processing cores, and the processor 701 executes various functional applications and information processing by running software programs and modules.
  • the receiver 702 and the transmitter 703 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 704 is connected to the processor 701 through a bus 705.
  • the memory 704 may be configured to store at least one instruction, and the processor 701 is configured to execute the at least one instruction, so as to implement each step performed by the first IAB base station in the foregoing method embodiments.
  • the memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the information determination method provided by the foregoing method embodiments.
  • the present application also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the information determination method provided by the foregoing method embodiments.
  • FIG. 8 shows a schematic structural diagram of a second IAB base station provided by an exemplary embodiment of the present application.
  • the second IAB base station includes: a processor 801, a receiver 802, a transmitter 803, a memory 804, and a bus 805 .
  • the processor 801 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.
  • the receiver 802 and the transmitter 803 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 804 is connected to the processor 801 through a bus 805.
  • the memory 804 may be used to store at least one instruction, and the processor 801 is used to execute the at least one instruction, so as to implement each step performed by the second IAB base station in the foregoing method embodiments.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the information determination method provided by the foregoing method embodiments.
  • the present application also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the information determination method provided by the foregoing method embodiments.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware, or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte, selon des modes de réalisation, au domaine technique des communications, et concerne un procédé, un appareil, un système et un dispositif de détermination d'informations, et un support d'enregistrement. Le procédé consiste à : recevoir des premières informations de configuration de canal d'accès aléatoire physique (PRACH) et à déterminer des secondes informations de configuration de PRACH conformément aux premières informations de configuration de PRACH. Les premières informations de configuration de PRACH sont des informations de configuration de PRACH utilisées par un équipement utilisateur (UE), et les secondes informations de configuration de PRACH sont des informations de configuration de PRACH utilisées par une première station de base IAB. Des ressources de PRACH correspondant aux premières informations de configuration de PRACH sont différentes des ressources de PRACH correspondant aux secondes informations de configuration de PRACH. Par conséquent, même si les mêmes ressources de PRACH sont configurées pour la première station de base IAB et une seconde station de base IAB, la première station de base IAB ne reçoit pas un RACH de l'UE et envoie un RACH au second IAB sur le même bloc de ressources PRACH, ce qui permet d'éviter le problème des conflits de ressources.
PCT/CN2019/075948 2019-02-22 2019-02-22 Procédé, appareil, système et dispositif de détermination d'informations et support d'enregistrement Ceased WO2020168572A1 (fr)

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CN111436132B (zh) * 2019-01-11 2024-04-30 成都华为技术有限公司 随机接入资源配置方法和装置
WO2026016097A1 (fr) * 2024-07-17 2026-01-22 Oppo广东移动通信有限公司 Procédé et appareil de configuration de canal d'accès aléatoire, dispositif, support et produit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873712A (zh) * 2009-04-27 2010-10-27 大唐移动通信设备有限公司 一种调整prach配置信息的方法、装置及系统
CN102149200A (zh) * 2010-02-04 2011-08-10 电信科学技术研究院 一种配置prach信息的方法和基站
CN105264968A (zh) * 2014-04-29 2016-01-20 华为技术有限公司 一种随机接入的装置及方法
US20180124836A1 (en) * 2016-10-30 2018-05-03 Lg Electronics Inc. Method and user equipment for performing random access procedure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11950287B2 (en) * 2017-08-10 2024-04-02 Comcast Cable Communications, Llc Resource configuration of beam failure recovery request transmission
CN111436132B (zh) * 2019-01-11 2024-04-30 成都华为技术有限公司 随机接入资源配置方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873712A (zh) * 2009-04-27 2010-10-27 大唐移动通信设备有限公司 一种调整prach配置信息的方法、装置及系统
CN102149200A (zh) * 2010-02-04 2011-08-10 电信科学技术研究院 一种配置prach信息的方法和基站
CN105264968A (zh) * 2014-04-29 2016-01-20 华为技术有限公司 一种随机接入的装置及方法
US20180124836A1 (en) * 2016-10-30 2018-05-03 Lg Electronics Inc. Method and user equipment for performing random access procedure

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