WO2020063522A1 - 一种物理随机接入信道prach资源的处理方法及装置 - Google Patents

一种物理随机接入信道prach资源的处理方法及装置 Download PDF

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Publication number
WO2020063522A1
WO2020063522A1 PCT/CN2019/107248 CN2019107248W WO2020063522A1 WO 2020063522 A1 WO2020063522 A1 WO 2020063522A1 CN 2019107248 W CN2019107248 W CN 2019107248W WO 2020063522 A1 WO2020063522 A1 WO 2020063522A1
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Prior art keywords
access device
prach resource
information
prach
resource information
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PCT/CN2019/107248
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English (en)
French (fr)
Inventor
石小丽
张宏卓
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华为技术有限公司
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Publication date
Priority claimed from CN201910114628.7A external-priority patent/CN110972328B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112021005901-6A priority Critical patent/BR112021005901A2/pt
Priority to EP19865926.0A priority patent/EP3849272A4/en
Publication of WO2020063522A1 publication Critical patent/WO2020063522A1/zh
Priority to US17/214,243 priority patent/US11864245B2/en

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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

  • the present application relates to the field of communications, and in particular, to a method and device for processing PRACH resources of a physical random access channel.
  • Random access plays an important role in a long term evolution (LTE) system, and is the only strategy for user equipment to perform initial connection, handover, connection re-establishment, and resume uplink synchronization.
  • LTE long term evolution
  • the difference between the random access process and deterministic uplink and downlink scheduling is that it has randomness.
  • the user equipment (UE) selects a preamble sequence for access at a random moment; secondly, the result of the access is also random and cannot guarantee 100% success.
  • the role of the random access control algorithm is to ensure the success of random access as much as possible and control the uncertainty to an acceptable range.
  • a physical random access channel (physical random access channel, PRACH) algorithm is considered.
  • the algorithms include a ZC root sequence index automatic planning algorithm and a PRACH configuration index automatic planning algorithm.
  • Automatically assign reasonable preamble indexes to multiple cells through network planning ensure that high-speed, large-radius cells are preferentially assigned preamble sequences with better detection performance, and adjacent cells are assigned different preamble sequences to reduce interference; multiple network cells are planned through network planning Automatically allocate a reasonable PRACH configuration index to reduce PRACH interference between the same base station and the total interference of adjacent cells between different base stations.
  • the embodiments of the present application provide a method and a device for processing a PRACH resource of a physical random access channel, which are used to solve a PRACH resource interference problem in a new radio access technology NR system.
  • a first aspect of the present application provides a method for processing a physical random access channel PRACH resource, including: receiving, by a first access device, first information from a second access device, where the first information includes a beam recovery BFR At least one of PRACH resource information, PRACH resource information of on-demand system information OSI, and PRACH resource information of uplink carrier UL; the first access device performs processing according to the first information.
  • the first access device receives the first information sent by the second access device, and recovers the PRACH resource information of the BFR, the PRACH resource information of the on-demand system information OSI, and the uplink carrier according to the beam carried in the first information.
  • At least one of the PRACH resource information of the UL optimizes the random access channel RACH, avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, the dedicated PRACH resources of the OSI, and the dedicated PRACH of the uplink carrier UL At least one of the resources conflicted.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier. information. Effectively avoid conflicts between dedicated PRACH resources of conventional uplink carriers and / or dedicated resources of PRACH supplementing uplink carriers.
  • the first information further includes public PRACH resource information, or public PRACH resource information and a public PRACH resource length format. Instructions.
  • the first information can carry public PRACH resource information or a long and short format indication of public PRACH resources is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. at least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the method further includes: the first access device sends a first instruction to the second access device, where the first instruction includes PRACH At least one of a resource conflict indication, a PRACH resource conflict type, a PRACH resource candidate resource list, and a PRACH resource length format indication. Added the process that the first access device sends the first instruction to the second access device, so that the second access device can modify the PRACH resource information of the second access device according to the first instruction, avoiding the second access device Conflicts with PRACH resource information of the first access device.
  • the conflict types of PRACH resources include a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and At least one of PRACH resource collisions of an uplink carrier.
  • the specific situation of the conflict type of PRACH resources is clarified, and the processing efficiency of the first instruction in the embodiment of the present application is improved.
  • the PRACH resource conflict of the uplink carrier includes a PRACH resource conflict of a regular uplink carrier and / or a PRACH resource conflict of a supplementary uplink carrier.
  • the first indication further includes a candidate PRACH resource.
  • the situation where the first instruction carries candidate PRACH resources is clarified, the scope of searching for PRACH resources is reduced, and the efficiency of PRACH resource coordination is improved.
  • the first access device is a first new radio access technology NR base station
  • the second access device is A second NR base station
  • the first access device is a centralized unit CU, and the second access device is a distributed unit DU; or, the first access device is a distributed unit DU, and the second access device Is a centralized unit CU;
  • the first access device is an NR base station
  • the second access device is a long-term evolution LTE base station
  • the first access device is an LTE base station
  • the second access device is an NR base station.
  • a second aspect of the present application provides a method for processing a PRACH resource of a physical random access channel, including: determining, by a second access device, first information, where the first information includes PRACH resource information of a beam recovery BFR, and an on-demand system Information at least one of PRACH resource information of the OSI and PRACH resource information of the uplink carrier UL; the second access device sends the first information to the first access device.
  • the second access device sends first information to the first access device, where the first information carries PRACH resource information of beam recovery BFR, PRACH resource information of on-demand system information OSI, and uplink carrier UL At least one of the PRACH resource information, so that the first access device optimizes the random access channel RACH, avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, and the dedicated PRACH resources of the OSI And at least one of the dedicated PRACH resources of the uplink carrier UL collides.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier.
  • the first information further includes public PRACH resource information, or public PRACH resource information and length of the public PRACH resource Format indication.
  • the first information can carry public PRACH resource information or a long and short format indication of the public PRACH resource is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. at least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the method further includes: the second access device receives a first instruction from the first access device, and the first The indication includes at least one of a PRACH resource conflict indication, a PRACH resource conflict type, a PRACH resource candidate resource list, and a PRACH resource length format indication. Added the process that the second access device receives the first instruction from the first access device, so that the second access device can modify the PRACH resource information of the second access device according to the first instruction, avoiding the second access device Conflicts with PRACH resource information of the first access device.
  • the types of conflicts in the PRACH resource include a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and uplink At least one of PRACH resource collisions of carriers.
  • the PRACH resource conflict of the uplink carrier includes a PRACH resource conflict of a regular uplink carrier and / or a PRACH resource conflict of a supplementary uplink carrier.
  • the first indication further includes a candidate PRACH resource.
  • the situation where the first instruction carries candidate PRACH resources is clarified, the scope of searching for PRACH resources is reduced, and the efficiency of PRACH resource coordination is improved.
  • the first access device is a first new radio access technology NR base station
  • the second access device is A second NR base station
  • the first access device is a centralized unit CU, and the second access device is a distributed unit DU; or, the first access device is a distributed unit DU, and the second access device Is a centralized unit CU;
  • the first access device is an NR base station
  • the second access device is a long-term evolution LTE base station
  • the first access device is an LTE base station
  • the second access device is an NR base station.
  • a third aspect of the present application provides a method for processing PRACH resources of a physical random access channel, including:
  • the first access device obtains third information, where the third information includes PRACH resource information of at least one neighboring cell of the third access device, and the PRACH resource information includes PRACH resource information of beam recovery BFR, and system information on demand OSI At least one of the PRACH resource information, the common PRACH resource information, and the PRACH resource information of the uplink carrier UL; the first access device sends the third information to the third access device.
  • the third access device In order to enable the third access device to optimize the random access channel RACH according to the third information, collision of PRACH resources between cells under the first access device is avoided.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier. information.
  • the third information further includes a length format indication of a common PRACH resource.
  • the third information can carry public PRACH resource information or a public PRACH resource length format indication is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. At least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the third access device is one of at least one access device supported by the first access device.
  • the neighboring cell of the third access device refers to a neighboring cell of a cell under the third access device.
  • the method further includes that the first access device is from a neighboring base station, a fourth access device, and a fifth access device. At least one cell under the access device obtains PRACH resource information, wherein the fourth access device is an access device adjacent to the first access device, and the fifth access device is an access device connected to the third access device. An access device adjacent to the access device; and the first access device determines the PRACH resource information of the neighboring area of the third access device according to the acquired PRACH resource information. In order to enable the third access device to optimize the random access channel RACH according to the PRACH resource information of the neighboring area of the third access device, collision of PRACH resources between cells under the first access device is avoided.
  • the method further includes that the PRACH resource information that the first access device has acquired includes at least one degree of adjacency
  • the at least one degree of adjacency is used to indicate a phase relationship between a cell under the first access device and at least one cell under the neighboring base station, the fourth access device, and the fifth access device. Adjacent degree.
  • the PRACH resource information includes at least one degree of adjacency, optimization of the physical random access channel PRACH resources is more accurate, and further reducing the occurrence of conflicts in PRACH resources between cells under the first access device. may.
  • the first access device is a centralized unit CU
  • the third access device is a distributed unit DU.
  • a fourth aspect of the present application provides a method for processing PRACH resources of a physical random access channel, including: a third device receiving third information from the first access device, where the third information includes at least one third access device The PRACH resource information of the neighboring cell.
  • the PRACH resource information includes at least one of PRACH resource information of beam recovery BFR, PRACH resource information of on-demand system information OSI, public PRACH resource information, and PRACH resource information of the uplink carrier UL.
  • the third access device performs processing according to the third information.
  • the third access device can optimize the random access channel RACH according to the third information, thereby avoiding the occurrence of PRACH resources between cells under the first access device. conflict.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier. information.
  • the third information further includes an indication of a length format of a common PRACH resource.
  • the third information can carry public PRACH resource information or a public PRACH resource length format indication is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. At least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the third access device is one of at least one access device supported by the first access device.
  • the neighboring cell of the third access device refers to a neighboring cell of a cell under the third access device.
  • the method further includes that the PRACH resource information includes at least one degree of adjacency, and the at least one degree of adjacency is used for Indicates the degree of adjacentness between a cell under the first access device and at least one cell under the neighboring base station, the fourth access device, and the fifth access device, where the fourth access device is a The first access device is adjacent to the access device, and the fifth access device is an access device adjacent to the third access device.
  • the third access device can optimize the random access channel RACH according to the PRACH resource information of the neighboring cell of the third access device, thereby avoiding collision of PRACH resources between cells under the first access device.
  • the first access device is a centralized unit CU
  • the third access device is a distributed unit DU.
  • a fifth aspect of the present application provides an access device.
  • the access device is a first access device and includes a receiving module configured to receive first information from a second access device, where the first information includes a beam. Restore at least one of the PRACH resource information of the BFR, the PRACH resource information of the on-demand system information OSI, and the PRACH resource information of the uplink carrier UL; the processing module is configured to perform processing according to the first information to avoid the first access device A conflict occurs with at least one of a dedicated PRACH resource of the BFR of the second access device, a dedicated PRACH resource of the OSI, and a dedicated PRACH resource of the uplink carrier UL.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier.
  • the first information further includes public PRACH resource information, or public PRACH resource information and length of the public PRACH resource. Format indication.
  • the first information can carry public PRACH resource information or a long and short format indication of public PRACH resources is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. at least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the access device further includes: a sending module, configured to send a first instruction to the second access device.
  • An indication includes at least one of a PRACH resource conflict indication, a PRACH resource conflict type, a PRACH resource candidate resource list, and a PRACH resource length format indication. Added the process that the first access device sends the first instruction to the second access device, so that the second access device can modify the PRACH resource information of the second access device according to the first instruction, avoiding the second access device Conflicts with PRACH resource information of the first access device.
  • the PRACH resource conflict type includes a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and At least one of PRACH resource collisions of an uplink carrier.
  • the specific situation of the conflict type of PRACH resources is clarified, and the processing efficiency of the first instruction in the embodiment of the present application is improved.
  • the PRACH resource conflict of the uplink carrier includes a PRACH resource conflict of a regular uplink carrier and / or a PRACH resource conflict of a supplementary uplink carrier. At least one of.
  • the specific situation of the conflict type of PRACH resources is clarified, and the processing efficiency of the first instruction in the embodiment of the present application is improved.
  • the first indication further includes a candidate PRACH resource.
  • the situation where the first instruction carries candidate PRACH resources is clarified, the scope of searching for PRACH resources is reduced, and the efficiency of PRACH resource coordination is improved.
  • the first access device is a first new radio access technology NR base station, and the second access device is A second NR base station; or, the first access device is a centralized unit CU, and the second access device is a distributed unit DU; or, the first access device is a distributed unit DU, and the The second access device is a centralized unit CU; or the first access device is an NR base station and the second access device is a long-term evolution LTE base station; or the first access device is an LTE base station, The second access device is an NR base station.
  • a sixth aspect of the present application provides an access device.
  • the access device is a second access device and includes a determining module configured to determine first information, where the first information includes PRACH resource information of a beam recovery BFR. At least one of the PRACH resource information of the on-demand system information OSI and the PRACH resource information of the uplink carrier UL; a sending module, configured to send the first information to the first access device, so that the first access device performs randomization
  • the optimization of the access channel RACH avoids at least one of the dedicated PRACH resources of the BFR of the first access device and the second access device, the dedicated PRACH resources of the OSI, and the dedicated PRACH resources of the uplink carrier UL.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier. At least one of the information; conflicts between dedicated PRACH resources of the regular uplink carrier of the first access device and the second access device and / or dedicated resources of the PRACH supplementing the uplink carrier are avoided.
  • the first information further includes public PRACH resource information, or public PRACH resource information and length of the public PRACH resource. Format indication.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. at least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the access device further includes: a receiving module, configured to receive a first instruction from the first access device.
  • An indication includes at least one of a PRACH resource conflict indication, a PRACH resource conflict type, a PRACH resource candidate resource list, and a PRACH resource length format indication. Added the process that the second access device receives the first instruction from the first access device, so that the second access device can modify the PRACH resource information of the second access device according to the first instruction, avoiding the second access device Conflicts with PRACH resource information of the first access device.
  • the conflict types of PRACH resources include a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and At least one of PRACH resource collisions of an uplink carrier.
  • the specific situation of the conflict type of PRACH resources is clarified, and the processing efficiency of the first instruction in the embodiment of the present application is improved.
  • the PRACH resource conflict of the uplink carrier includes a PRACH resource conflict of a conventional uplink carrier and / or a PRACH resource conflict of a supplementary uplink carrier.
  • the first indication further includes a candidate PRACH resource.
  • the situation where the first instruction carries candidate PRACH resources is clarified, the scope of searching for PRACH resources is reduced, and the efficiency of PRACH resource coordination is improved.
  • the first access device is a first new radio access technology NR base station, and the second access device is A second NR base station; or, the first access device is a centralized unit CU, and the second access device is a distributed unit DU; or, the first access device is a distributed unit DU, and the The second access device is a centralized unit CU; or the first access device is an NR base station and the second access device is a long-term evolution LTE base station; or the first access device is an LTE base station, The second access device is an NR base station.
  • a seventh aspect of the present application provides an access device, where the access device is a first access device and includes:
  • An obtaining module configured to obtain third information, where the third information includes PRACH resource information of at least one neighboring cell of the third access device, and the PRACH resource information includes PRACH resource information of the beam recovery BFR and on-demand system information OSI At least one of the PRACH resource information, the common PRACH resource information, and the PRACH resource information of the uplink carrier UL; a sending module, configured to send the third information to the third access device by the device.
  • the third access device In order to enable the third access device to optimize the random access channel RACH according to the third information, collision of PRACH resources between cells under the first access device is avoided.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier. At least one of the information; avoiding collision of PRACH resources between cells under the first access device.
  • the third information further includes an indication of a length format of a common PRACH resource.
  • the third information can carry public PRACH resource information or a long and short format indication of the public PRACH resource is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. At least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the third access device is one of at least one access device supported by the first access device.
  • the neighboring cell of the third access device refers to a neighboring cell of a cell under the third access device.
  • the acquisition module includes a first acquisition submodule, which is configured to receive information from a neighboring base station, a fourth access device, and a first At least one cell under five access devices obtains PRACH resource information, wherein the fourth access device is an access device adjacent to the first access device, and the fifth access device is an access device adjacent to the first access device.
  • Three access devices are adjacent access devices; a second acquisition submodule is configured to determine PRACH resource information of the third access device's neighboring area according to the acquired PRACH resource information. In order to enable the third access device to optimize the random access channel RACH according to the PRACH resource information of the neighboring area of the third access device, collision of PRACH resources between cells under the first access device is avoided.
  • the PRACH resource information that has been acquired by the first acquisition submodule includes at least one degree of adjacency, and the at least one The degree of proximity is used to indicate the degree of proximity of a cell under the first access device to at least one cell under the neighboring base station, the fourth access device, and the fifth access device.
  • the PRACH resource information includes at least one degree of adjacency
  • the PRACH resource configuration of the physical random access channel is optimized more accurately, and the PRACH resource conflict between cells under the first access device is further reduced. Possible.
  • the first access device is a centralized unit CU
  • the third access device is a distributed unit DU.
  • An eighth aspect of the present application provides an access device.
  • the access device is a third access device and includes a receiving module configured to receive third information from the first access device.
  • the third information includes PRACH resource information for at least one neighboring cell of the third access device, the PRACH resource information includes PRACH resource information for beam recovery BFR, PRACH resource information for on-demand system information OSI, public PRACH resource information, and PRACH resource for uplink carrier UL At least one of the information; a processing module, configured to perform processing according to the third information.
  • the third access device can optimize the random access channel RACH according to the third information, thereby avoiding collision of PRACH resources between cells under the first access device.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or a PRACH resource supplementing the uplink carrier. information.
  • the third information further includes an indication of a length format of a common PRACH resource.
  • the third information can carry public PRACH resource information or a public PRACH resource length format indication is added, which provides necessary conditions for the process of initial access to the network in the embodiment of the present application, and improves the coordination efficiency of PRACH resources.
  • the PRACH resource information includes a root sequence index, a cyclic shift, a high-speed identifier, a PRACH frequency offset, and a PRACH configuration index. At least one.
  • the PRACH resource information is specifically detailed so that the embodiments of the present application can coordinate specific PRACH resources and improve the coordination efficiency of PRACH resources.
  • the third access device is one of at least one access device supported by the first access device.
  • the neighboring cell of the third access device refers to a neighboring cell of a cell under the third access device.
  • the PRACH resource information includes at least one degree of adjacency, and the at least one degree of adjacency is used to indicate the first The degree of proximity of the cell under the access device to at least one of the neighboring base station, the fourth access device, and the cell under the fifth access device, wherein the fourth access device is connected to the first access device.
  • An access device adjacent to the access device, and the fifth access device is an access device adjacent to the third access device.
  • the third access device can optimize the random access channel RACH according to the PRACH resource information of the neighboring cell of the third access device, thereby avoiding collision of PRACH resources between cells under the first access device.
  • the first access device is a centralized unit CU
  • the third access device is a distributed unit DU.
  • a ninth aspect of the present application provides an access device, including: a memory, a processor, and a bus system; wherein the memory is used to store a program; the processor is used to execute a program in the memory and used to execute the foregoing All aspects described.
  • a tenth aspect of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the methods described in the above aspects.
  • An eleventh aspect of the present application provides a computer program product containing instructions that, when run on a computer, causes the computer to perform the methods described in the above aspects.
  • a twelfth aspect of the present application provides a communication system, including a first access device provided by the fifth aspect and a second access device provided by the sixth aspect.
  • a thirteenth aspect of the present application provides a communication system, including a first access device provided by the seventh aspect and a third access device provided by the eighth aspect.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of an embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • FIG. 3 is a schematic diagram of another embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • FIG. 4 is a schematic diagram of another embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • FIG. 5 is a schematic diagram of another embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • FIG. 6 is a schematic diagram of another embodiment of a method for processing PRACH resources of a physical random access channel in an embodiment of the present application
  • FIG. 7 is a schematic diagram of another embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • FIG. 8 is a schematic diagram of another network architecture applied to an embodiment of this application.
  • FIG. 9 is a schematic diagram of an embodiment of an access device according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another embodiment of an access device according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another embodiment of an access device according to an embodiment of the present application.
  • FIG. 12A is a schematic diagram of another embodiment of an access device according to an embodiment of the present application.
  • FIG. 12B is a schematic diagram of another embodiment of an access device according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of another embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • FIG. 14 is a schematic diagram of another embodiment of a method for processing a PRACH resource of a physical random access channel in an embodiment of the present application
  • 15 is a schematic diagram of another embodiment of an access device according to an embodiment of the present application.
  • FIG. 16 is a schematic diagram of another embodiment of an access device according to an embodiment of the present application.
  • the embodiments of the present application provide a PRACH resource processing method and device, which are used to solve the problem of PRACH resource interference of a physical random access channel in a new radio access technology NR system.
  • RACH random access channel
  • UE user equipment
  • PRACH physical random access channel
  • PRACH physical random access channel
  • the purpose of this algorithm is to allocate a reasonable PRACH configuration index for the cell, reduce PRACH interference in the cell within the base station, and reduce total interference between the base stations, such as inter-PRACH interference, physical uplink shared channel (PUSCH) pair PRACH interference, etc.
  • new radio new radio
  • NR new radio access technology
  • a beam may be understood as a spatial resource, and may refer to sending or receiving a precoding vector with directivity of energy transmission.
  • the transmitted or received precoding vector can be identified by index information, and the index information may correspond to a resource identifier (identity, ID) of the configuration terminal.
  • the index information may correspond to a configured CSI-RS identifier or resource. ; It may also be the identifier or resource of the corresponding configured sounding reference signal (SRS).
  • the index information may also be index information displayed or implicitly carried by a signal or channel carried by a beam.
  • the energy transmission directivity may refer to precoding processing of a signal to be transmitted through the precoding vector, and the signal after the precoding processing has a certain spatial directivity. After receiving the precoding vector and performing precoding processing, The signal has a better received power, such as satisfying the reception demodulation signal-to-noise ratio, etc .; the energy transmission directivity may also mean that the same signal received from the different spatial positions received by the precoding vector has different received power.
  • the same communication device (such as a terminal device or a network device) may have different precoding vectors, and different devices may also have different precoding vectors, that is, corresponding to different beams.
  • one communication device can use one or more of a plurality of different precoding vectors at the same time, that is, one beam or multiple beams can be formed at the same time.
  • a beam sent by a network device to a terminal device is referred to as a downlink beam
  • a beam sent by the terminal device to the network device is referred to as an uplink beam.
  • the configuration of the beam can be configured by RRC
  • the SSB is sent to the UE through a broadcast message
  • the CSI-RS can be configured to the UE through radio resource control (RRC) -specific signaling.
  • RRC radio resource control
  • the SSB and CSI-RS will be configured with two thresholds (rsrp-ThresholdSSB, csirs-Threshold).
  • the two thresholds are used for the UE to select the beam, and the network can configure the UE based on SSB or CSI-RS measurement.
  • the UE measures the SSB reference signal received power (synchronization reference signal received power (SSB-RSRP)) or the CSI reference signal received power (channel reference information received power (CSI-RSRP).
  • SSB-RSRP synchronization reference signal received power
  • CSI-RSRP channel reference information received power
  • the supplementary uplink carrier is a new definition introduced in the NR system, that is, a cell may have at least one downlink carrier and at least one uplink carrier.
  • a cell may have one downlink carrier and two uplink carriers.
  • the UE can select any uplink carrier for data transmission.
  • the uplink carrier can include a conventional uplink (UL) carrier and a supplementary uplink (SUL) carrier.
  • UL uplink
  • SUL supplementary uplink
  • the reference signal received power threshold (for example, rsrpthresholdSUL) is compared to determine whether to choose a conventional UL carrier or a SUL carrier.
  • the SUL reference signal received power threshold may be configured by the radio access network device to the terminal through RRC signaling.
  • a device such as a wireless access network device that sends rsrpthresholdSUL to a terminal device through broadcast information, is used to select SUL or UL when the terminal device initially random accesses; or when the terminal device is in a switching scenario, the wireless access network device can pass
  • the dedicated signaling indicates whether the terminal equipment uses UL or SUL, or whether it uses both UL and SUL.
  • the uplink carriers in this application may include regular uplink carriers and / or supplemental uplink carriers.
  • the embodiments of the present application can be applied to a scenario in which an NR system separately deploys a base station (standalone, SA), a NR CU-DU scenario, an EN-DC scenario, and a multi-RAT dual connectivity (MR-DC) Scenes, etc.
  • a base station standalone, SA
  • a NR CU-DU scenario an EN-DC scenario
  • MR-DC multi-RAT dual connectivity
  • the centralized unit (gNB-CU) of the NR base station and the distributed unit (gNB-DU) of the NR base station are connected through the F1 interface, and gNB They are connected through the Xn interface, and the gNB and the NR core network (5G core network, 5GC) are connected through the NG interface.
  • 5G core network, 5GC 5G core network
  • the CU and DU is to divide according to the function of the protocol stack.
  • the CU has functions above the packet data convergence protocol (PDCP) layer, including the service data adaptation layer (service data adaptation). protocol (SDAP) layer function, PDCP layer function, radio resource control (RRC) function and service data adaptation layer (SDAP) function;
  • DU has the following functions of the PDCP layer, including wireless link control (radio link control (RLC)) function, medium access control (MAC) MAC function, and physical layer (PHY) function.
  • RLC radio link control
  • MAC medium access control
  • PHY physical layer
  • a DU may be a relay device, or a scenario in which a DU and a UE transmit through a relay device.
  • the embodiments of the present application can also be applied to other multi-link data transmission scenarios, which are not specifically limited herein.
  • An embodiment of a method for processing PRACH resources in the embodiment of the present application includes:
  • the second access device sends first information to the first access device.
  • the first access device may be a first wireless access network device
  • the second access device may be a second wireless access network device. There is a connection between the first access device and the second access device.
  • the first access device and the second access device are used as examples for description.
  • the second access device sends first information to the first access device, where the first information includes PRACH resource information of beam recovery (BFR) and PRACH of on-demand system information (OSI) One or more of resource information and PRACH resource information of the uplink carrier UL.
  • BFR beam recovery
  • OSI on-demand system information
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and PRACH resource information of a supplementary uplink carrier.
  • the first information may include PRACH resource information of BFR alone, the first information may also include PRACH resource information of OSI alone, the first message may also include PRACH resource information of uplink carrier UL alone, and the first message may also include The PRACH resource information of the conventional uplink carrier may be separately included, and the first message may also include the PRACH resource information of the supplementary uplink carrier separately;
  • the first information may also include at least two or more of the PRACH resource information of the BFR, the PRACH resource information of the OSI, and the PRACH resource information of the uplink carrier.
  • the PRACH resource of the BFR can be regarded as a dedicated PRACH of the BFR
  • the PRACH resource of the OSI can be regarded as a dedicated PRACH of the OSI
  • the PRACH resource of the uplink carrier can be regarded as a dedicated PRACH resource of the uplink carrier
  • the conventional uplink carrier The PRACH resource can be regarded as a dedicated PRACH resource for the conventional uplink carrier
  • the PRACH resource supplemented by the uplink carrier can be regarded as a dedicated PRACH resource that supplements the uplink carrier.
  • PRACH resource information may also be referred to as PRACH resource configuration information or PRACH resource configuration or other terms, which are not limited herein.
  • the first information may further include common PRACH resource information, or both the common PRACH resource information and the length indication of the common PRACH resource.
  • the common PRACH resource information can be understood as PRACH resource information common to the second access device or each cell under the second access device, that is, PRACH resource information common to the BFR or OSI or the uplink carrier or the supplementary uplink carrier;
  • the common PRACH resource is used by the UE to initially access the network.
  • the BFR is generally a short format
  • the OSI format is similar to the long and short format of a public PRACH resource, and may be a long format or a short format.
  • the PRACH resource information includes the root sequence index (RootSequenceIndex), cyclic shift (ZeroCorrelationZoneConfiguration), high speed flag (HighSpeedFlag), PRACH frequency offset (PRACH-FrequencyOffset), and PRACH configuration index (PRACH-ConfigurationIndex). at least one.
  • the PRACH resource information may include only the root sequence index, or only the cyclic shift, or both the root sequence index and the cyclic shift, and may also include the root sequence index, cyclic shift, high-speed identification, and PRACH frequency offset.
  • the PRACH configuration index the first information only needs to carry at least one of the above parameters, and may be other different combinations.
  • the PRACH resource information includes a PRACH frequency offset and a PRACH configuration index, which are not specifically limited here.
  • Each parameter included in the PRACH resource information may be another form of parameter that plays the same role, and is not specifically limited herein.
  • the PRACH resource information of the BFR, the PRACH resource information of the OSI, the PRACH resource information of the uplink carrier UL, and the common PRACH resource information may be the same or different.
  • the PRACH resource information of the BFR included in the first information includes the BFR root sequence index (RootSequenceIndex-BFR), BFR cyclic shift (ZeroCorrelationZoneConfiguration-BFR), and BFR.
  • HighSpeedFlag-BRF HighSpeedFlag-BRF
  • PRACH-FrequencyOffset-BFR PRACH frequency offset
  • PRACH-ConfigurationIndex-BFR PRACH configuration index
  • the PRACH resource information of the OSI included in the first information includes a root sequence index of the OSI (RootSequenceIndex-OSI), a cyclic shift of the OSI (ZeroCorrelationZoneConfiguration-OSI), a high speed flag of the OSI (HighSpeedFlag-OSI), and a PRACH of the OSI At least one of a frequency offset (PRACH-FrequencyOffset-OSI) and a PRACH configuration index (PRACH-ConfigurationIndex-OSI) of the OSI.
  • RootSequenceIndex-OSI a root sequence index of the OSI
  • ZeroCorrelationZoneConfiguration-OSI ZeroCorrelationZoneConfiguration-OSI
  • HighSpeedFlag-OSI HighSpeedFlag-OSI
  • PRACH of the OSI At least one of a frequency offset (PRACH-FrequencyOffset-OSI) and a PRACH configuration index (PRACH-ConfigurationIndex-OSI) of the OSI.
  • the PRACH resource information of the uplink carrier UL included in the first information includes a root sequence index (RootSequenceIndex-uplink carrier) of the uplink carrier, a cyclic shift (ZeroCorrelationZoneConfiguration-uplink carrier) of the uplink carrier, and a high-speed flag of the uplink carrier (HighSpeedFlag).
  • RootSequenceIndex-uplink carrier a root sequence index
  • ZeroCorrelationZoneConfiguration-uplink carrier ZeroCorrelationZoneConfiguration-uplink carrier
  • HighSpeedFlag high-speed flag of the uplink carrier
  • the PRACH resource information of the regular uplink carrier included in the first information includes the root sequence index (RootSequenceIndex-normal uplink link carrier) of the regular uplink carrier, the cyclic shift of the regular uplink carrier (ZeroCorrelationZoneConfiguration-normal uplink link carrier), and the regular uplink carrier.
  • the PRACH resource information of the supplementary uplink carrier included in the first information includes a root sequence index of the uplink carrier (RootSequenceIndex-supplementary uplink link carrier), a cyclic shift of the supplementary uplink carrier (ZeroCorrelationZoneConfiguration-supplementary uplink link carrier), At least one of a high-speed flag (HighSpeed Flag-supplementary uplink link carrier), a PRACH frequency offset supplementing an uplink carrier (PRACH-Frequency Offset-supplementary uplink link carrier), and a PRACH configuration index (PRACH-Configuration Index-supplementary uplink link carrier) supplementing the uplink carrier.
  • RootSequenceIndex-supplementary uplink link carrier a cyclic shift of the supplementary uplink carrier
  • ZeroCorrelationZoneConfiguration-supplementary uplink link carrier At least one of a high-speed flag (HighSpeed Flag-supplementary uplink link carrier)
  • PRACH frequency offset supplementing an uplink carrier
  • PRACH-Frequency Offset-supplementary uplink link carrier PRACH-Configuration
  • the PRACH resource information of the BFR, the PRACH resource information of the OSI, the PRACH resource information of the uplink carrier UL, and the common PRACH resource information may be a candidate resource list, which is not limited herein.
  • the PRACH resources used by the first access device and the second access device may be configured by a network manager or configured by other centralized nodes, which are not specifically limited herein.
  • the PRACH resources involved in the PRACH resource information of the BFR can be regarded as the dedicated resources of the BFR
  • the PRACH resources involved in the PRACH resource information of the OSI can be regarded as the dedicated resources of the OSI.
  • the PRACH resource involved in the PRACH resource information of the uplink carrier UL can be regarded as a dedicated resource of the uplink carrier.
  • RootSequenceIndex of OSI and the common RootSequenceIndex are configured the same.
  • the first information may be sent in an interface message carried between the first access device and the second access device, and the interface message may be an Xn interface message of NR, where the Xn interface message is It can be an existing Xn interface message, including UE-associated signaling messages of the user equipment and non-UE-associated messages of the user equipment, or it can be a newly defined Xn interface message.
  • This application is here. Not limited.
  • an Xn setup request message response message or an Xn setup request message or a base station configuration update message or a base station configuration update response message is included in the cell information included in the message.
  • the PRACH resources of BFR when the first information is any of PRACH resources of BFR, PRACH resources of OSI, PRACH resource information of uplink carrier UL, and common PRACH resources, the PRACH resources of BFR, OSI
  • the PRACH resource, the PRACH resource information of the uplink carrier UL, and the common PRACH resource can be transmitted through different Xn interface messages, respectively.
  • the first access device performs processing according to the first information.
  • the first access device may have multiple different implementations according to the first information processing.
  • the first access device that is, the first radio access network device
  • the first access device may also use the first information to perform RACH coordination, or the first access device may also use the first information to perform RACH reconfiguration and the like.
  • the optimization of the random access channel RACH by the first access device using the first information may be optimization of PRACH resource configuration.
  • the optimization of the PRACH resource configuration by the first access device using the first information may include: the first access device determines whether the PRACH resource configuration of the first access device conflicts with the PRACH resource configuration of the second access device; If the PRACH resource of the first access device conflicts with the PRACH resource of the second access device, the first access device may modify the PRACH resource configuration of the first access device to a new PRACH resource configuration, or the first access device may The incoming device may modify the PRACH resource configuration of the second access device to a new PRACH resource configuration, and send the new PRACH resource configuration to the second access device, where the new PRACH resource configuration and the second access device The PRACH resource configuration does not conflict; or, the first access device sends the first information to the second access device to instruct the second access device to modify the PRACH resource configuration of the second access device to a new PRACH resource configuration, where , The new PRACH resource configuration does not conflict with the PRACH resource configuration of the first access device.
  • the PRACH resource conflict refers to the root sequence index (RootSequenceIndex), cyclic shift (ZeroCorrelationZoneConfiguration), high speed flag (HighSpeedFlag), PRACH frequency offset (PRACH-FrequencyOffset), and PRACH configuration index (PRACH- At least one or more parameters in ConfigurationIndex) are configured the same. For example, if the high-speed identifier of the first access device is the same as the high-speed identifier of the second access device, it can be determined that the PRACH resources of the first access device and the second access device conflict.
  • the high-speed identification of the first access device is the same as the high-speed identification of the second access device
  • the cyclic shift of the first access device is the same as the cyclic shift of the second access device, that is, the high-speed identification and rotation
  • the two parameters of the shift are configured the same, and it is determined that the PRACH resources of the first access device and the second access device conflict.
  • the PRACH resource conflict of the BFR refers to the RootSequenceIndex-BFR of the BFR, the ZeroCorrelationZoneConfiguration-BFR of the BFR, the High Speed Flag-BRF of the BFR, and the PRACH frequency deviation of the BFR.
  • At least one or a plurality of parameters of a PRACH-FrequencyOffset-BFR and a PRACH configuration index (PRACH-ConfigurationIndex-BFR) of the BFR are configured the same.
  • the PRACH resource conflict of the OSI refers to the root sequence index (OSI) of the OSI, the cyclic shift of the OSI (ZeroCorrelationZoneConfiguration-OSI), the high speed flag of the OSI (HighSpeedFlag-OSI), and the PRACH frequency deviation of the OSI
  • At least one or more parameters in the PRACH-FrequencyOffset-OSI and the PRACH configuration index (PRACH-ConfigurationIndex-OSI) of the OSI are configured the same.
  • the PRACH resource conflict of the conventional uplink carrier refers to the root sequence index of the conventional uplink carrier, the cyclic shift of the conventional uplink carrier, the high-speed identification of the conventional uplink carrier, and the PRACH frequency deviation of the conventional uplink carrier. And at least one or a plurality of parameters of the PRACH configuration index of the common uplink carrier and the conventional uplink carrier are configured the same.
  • the PRACH resource conflict of the supplementary uplink carrier refers to the root sequence index of the supplementary uplink carrier, the cyclic shift of the supplementary uplink carrier, the high-speed identification of the supplementary uplink carrier, and the PRACH frequency deviation of the supplementary uplink carrier.
  • At least one or a plurality of parameters of the PRACH configuration index of the set and supplementary uplink carriers are configured the same.
  • PRACH resource conflict described in this application may also be called PRACH resource overlap, or another name, which means that the PRACH resource configuration is unreasonable, which is not limited in the embodiment of this application.
  • the first access device may send the modified new PRACH resource configuration to the second access device.
  • the following steps 203 and 204 may also be performed.
  • the first access device may obtain PRACH resource information and / or neighboring degree of the neighboring cell, so that the first access device may optimize the PRACH resource configuration according to the PRACH resource information of the neighboring cell and the indication of the neighboring degree.
  • the first access device may send the PRACH resource information of the neighboring cell and the indication of the degree of proximity to the OAM, and the OAM will optimize the PRACH resource configuration.
  • the degree of proximity may be directly adjacent, indirectly adjacent, One or more of a specific distance, the degree of adjacentity can be identified by 0/1/2, etc. (0 means direct neighbor, 1 means indirect neighbor, 2 means specific distance), or other degrees Characterization, this application is not limited here.
  • the first access device sends a first instruction to the second access device, where the first instruction is used to instruct the second access device to optimize the random access channel RACH.
  • the first indication includes an indication of PRACH resource conflict (or an indication of optimization of PRACH resource configuration), a conflict type of PRACH resources (or an optimization type of PRACH resource configuration), and candidates for PRACH resources At least one of a resource list and a PRACH resource length format indication.
  • the first indication may be sent in an interface message between the first access device and the second access device, and the interface message may be an existing Xn interface message or a new Xn interface message,
  • the interface message may be an existing Xn interface message or a new Xn interface message,
  • a PRACH optimization request message is not limited herein.
  • the optimization of the random access channel RACH shown in this application may be configured for PRACH resources. Optimization. If the first access device considers that the second access device needs to optimize the PRACH resource configuration, the first access device sends a first indication to the second access device.
  • the first indication includes an indication of PRACH resource conflict
  • the indication of PRACH resource conflict is used to indicate that the PRACH resource of the first access device conflicts with the PRACH resource of the second access device.
  • the first indication may include a conflict type of PRACH resources, and the conflict type of PRACH resources includes a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and an uplink carrier PRACH resource conflict. At least one of a PRACH resource collision of a conventional uplink carrier and a PRACH resource collision of a supplementary uplink carrier. For example, if the PRACH resource conflict of the BFR is included in the first instruction, the second access device needs to optimize the PRACH resource configuration of the BFR of the second access device after receiving the first instruction.
  • the first indication may include a long and short format indication of the PRACH resource, and the long and short format indication of the PRACH resource is used to indicate whether the conflicted PRACH resource is a long format or a short format.
  • it may include the BFR PRACH resources, OSI's PRACH resources, PRACH resource conflicts for uplink carriers, PRACH resource conflicts for regular uplink carriers, PRACH resources supplementing uplink carriers, and common PRACH resource's length format indication.
  • the first indication may include a candidate resource list of PRACH resources, and the list includes candidate PRACH resources used by the second access device, so that the second access device selects a suitable PRACH among the candidate PRACH resources. Resources to avoid PRACH resource conflicts.
  • the second access device performs processing according to the first instruction.
  • the second access device modifies the PRACH resource according to the first indication. If the first indication includes a conflict type of PRACH resources, the second access device modifies a corresponding type of PRACH resource according to the first indication. If the first instruction includes a long and short format indication of the PRACH resource, the second access device modifies a corresponding RPACH resource source according to the long and short format indication. If the first instruction includes a candidate resource list of PRACH resources, the second access device selects a suitable PRACH resource as a new PRACH resource configuration in the candidate resource list according to the first instruction.
  • the second access device sends the modified new PRACH resource configuration to the first access device.
  • the modified new PRACH resource configuration may be sent through an interface message of the first access device and the second access device, and the interface message may be an existing Xn interface message or a new one.
  • the Xn interface message such as a PRACH optimization request response message, is not limited herein.
  • the candidate resource list of the PRACH resources included in the first indication may carry only one specific PRACH resource, that is, instruct the second access device to use the PRACH resource that is currently being used. Modify to the specific PRACH resource.
  • the first access device may also send a first indication to the OAM, where the first indication is used to indicate a PRACH resource conflict, and the OAM processes according to the first indication, that is, the OAM performs the PRACH resource configuration.
  • Optimization For the specific process of OAM processing according to the first instruction, refer to the process of processing performed by the second access device according to the first instruction. The details are not described in detail. For example, if OAM modifies the PRACH resource according to the first instruction, OAM will modify it. The new PRACH resource is sent to the first access device.
  • the second access device may also send the first instruction to the OAM, and the OAM processes the information according to the first instruction.
  • the OAM processing according to the first instruction refer to the foregoing.
  • the process performed by the second access device according to the first instruction is not described in detail. For example, if the OAM modifies the PRACH resource according to the first instruction, the OAM sends the modified new PRACH resource to the second access device.
  • the first access device receives the first information sent by the second access device, where the first information includes PRACH resource information of the beam recovery BFR, PRACH resource information of the on-demand system information OSI, and an uplink carrier.
  • the first information includes PRACH resource information of the beam recovery BFR, PRACH resource information of the on-demand system information OSI, and an uplink carrier.
  • At least one of the PRACH resource information of UL, and the random access channel RACH is optimized according to the first information, avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, the dedicated PRACH resources of the OSI, and uplink At least one of the dedicated PRACH resources of the carrier UL has a collision.
  • the first access device is a first base station
  • the second access device is a second base station.
  • another embodiment of a method for processing PRACH resources in the embodiment of the present application includes:
  • the second base station sends the first information to the first base station.
  • step 201 for a specific process in which the second access device sends the first information to the first access device and the content of the first information, reference may be made to step 201 in the first embodiment, and details are not described herein again.
  • the cell format of the PRACH resource information passed through the Xn interface message is shown in the following table:
  • the public PRACH resource Rootsequenceindex and the BFR PRACH resource Rootsequenceindex-BFR are arranged separately, or, as shown in Table 2, the public PRACH resource Rootsequenceindex and the BFR PRACH resource Rootsequenceindex-BFR are arranged in the lower-level attribute of the RootSequenceIndexlist.
  • the public PRACH resource Rootsequenceindex, the BFR PRACH resource Rootsequenceindex-BFRBFR, and the OSI PRACH resource Rootsequenceindex-OSI can both be arranged in the lower-level attributes of the RootSequenceIndexlist.
  • Table 1 uses the PRACH resource configuration information including common and BFR as an exemplary description, and the list may also include the PRACH resource information of OSI, which is not specifically limited here.
  • IE Information Element (IE) / Group Name RootSequenceIndex Rootsequenceindex-BFR ZeroCorrelationZoneConfiguration ZeroCorrelationZoneConfiguration-BFR HighSpeedFlag HighSpeedFlag-BFR PRACH-FrequencyOffset PRACH-FrequencyOffset-BFR PRACH-ConfigurationIndex PRACH-ConfigurationIndex-BFR
  • RootSequenceIndexlist > Rootsequenceindex > Rootsequenceindex-BFR
  • ZeroCorrelationZoneConfiguration > ZeroCorrelationZoneConfiguration-BFR
  • HighSpeedFlag > HighSpeedFlag > HighSpeedFlag-BFR
  • PRACH-FrequencyOffset > PRACH-FrequencyOffset-BFR
  • PRACH-ConfigurationIndex > PRACH-ConfigurationIndex-BFR
  • Table 2 is only an exemplary description, and the list may also include the PRACH resource configuration information of the OSI and / or the PRACH resource information of the uplink carrier UL, where the PRACH resource information of the uplink carrier UL includes the information of the conventional uplink carrier.
  • the PRACH resource information and / or the PRACH resource information supplementing the uplink carrier may be optional or mandatory, and are not specifically limited here.
  • the cells (parameters) in the above table may be specific to a certain cell, so corresponding information such as a cell identifier also exists.
  • the above-mentioned information element may be included in the cell information of the base station, or may be an independent information element.
  • the above-mentioned cells may also be transmitted through non-UE-associated signaling messages or transmitted through UE-associated signaling messages, which are not limited in this embodiment of the present application.
  • the above table may also include an indication of the length and length format of the PRACH resource, which will not be described in detail here. It should be noted that the PRACH resources of the BFR may be exchanged in a UE-specific message, for example, the PRACH resources of the BFR are exchanged in a handover (HO) message.
  • HO handover
  • the first base station and the second base station exchange messages through an Xn interface.
  • the Xn interface message may be an existing Xn interface message, including a UE-associated signaling message and
  • the non-UE-associated message of the user equipment may also be a newly defined Xn interface message, which is not limited herein.
  • BFR PRACH resources can be exchanged in UE specific messages, such as handover messages.
  • the first base station performs processing according to the first information.
  • the first base station uses the received first information to optimize the random access channel RACH.
  • the optimization of the random access channel RACH shown in this application may be the optimization of PRACH resources. More specifically, the first base station optimizes the PRACH resource configuration according to the first information sent by the second base station.
  • the first base station determines whether the first PRACH resource configuration of the first base station and the second PRACH resource configuration of the second base station conflict; if the first PRACH resource of the first base station conflicts with the second PRACH resource of the second base station, the first base station
  • the first PRACH resource configuration of the first base station may be modified to a new PRACH resource configuration, that is, the first optimized PRACH resource configuration, wherein the first optimized PRACH resource configuration does not conflict with the second PRACH resource configuration of the second base station;
  • the first base station instructs the second base station to modify the second PRACH resource configuration of the second base station to a new PRACH resource configuration, that is, the second optimized PRACH resource configuration, where the second optimized PRACH resource configuration is the same as that of the first base station.
  • the first PRACH resource configuration does not conflict. If the first base station modifies its own first PRACH resource configuration, the optimization process ends. For the specific process, refer to step 202 in the first embodiment, and details are not described herein again.
  • the first base station may perform the following process:
  • the first base station may send a first instruction to the OAM, and the OAM optimizes the random access channel RACH according to the first instruction;
  • the first base station sends a first instruction to the second base station.
  • the second base station After the second base station receives the first instruction, the second base station sends the first instruction to the OAM, and the OAM can perform random access for the second base station according to the first instruction.
  • Optimization of inbound channel RACH where the specific process of optimizing PRACH resource configuration can be seen in the following steps 303 to 304, which will not be described in detail here;
  • the first base station may obtain PRACH resource information and / or neighboring degree of the neighboring cell, so that the first base station may optimize the PRACH resource configuration according to the PRACH resource information of the neighboring cell and the indication of the neighboring degree, or The base station may send the PRACH resource information of the neighboring cell and the indication of the degree of neighborness to the OAM, and the OAM will optimize the PRACH resource allocation.
  • the degree of neighborness may be one of direct neighbor, indirect neighbor, specific distance or Multiple, the degree of adjacentity can be identified by 0/1/2, etc. (0 represents direct neighbor, 1 represents indirect neighbor, and 2 represents a specific distance), or the degree of neighborness can also be characterized by others. This application is here. Not limited.
  • the first base station may perform the processes shown in the following steps 303 and 304, as follows:
  • the first base station sends a first instruction to the second base station, where the first instruction is used to instruct the second base station to perform random access channel RACH optimization resources.
  • the first base station sends a first indication to the second base station, where the first indication is used to instruct the second base station to perform PRACH resources for random access channel RACH optimization.
  • the first indication may include an indication of a PRACH resource conflict.
  • the first base station obtains a PRACH resource conflict result according to the second PRACH resource configuration of the second base station carried in the received first information, the first base station needs to send a first instruction to the second base station.
  • the PRACH resource conflict indication is included, and the PRACH resource conflict indication is used to indicate that the first PRACH resource of the first base station conflicts with the second PRACH resource of the second base station.
  • the first indication may further include a conflict type of PRACH resources.
  • the conflict types of PRACH resources include a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, an uplink carrier PRACH resource conflict, and a conventional At least one of a PRACH resource collision of an uplink carrier and a PRACH resource collision of a supplementary uplink carrier.
  • the PRACH resource conflict of the BFR is included in the first indication, after receiving the first indication, the second base station needs to modify the PRACH resource configuration of the BFR in the second base station.
  • the first indication may further include an indication of a length and a short format of the PRACH resource, a candidate resource list of the PRACH resource, and the like.
  • the second base station performs processing according to the first instruction.
  • the second base station modifies its PRACH resource according to the first instruction. If the first instruction carries a candidate resource list, the second base station may directly select a suitable PRACH resource as a new PRACH resource configuration in the candidate resource list. For a specific process, refer to step 204 in the first embodiment, and details are not described herein again.
  • the modification result may also be sent to the first base station.
  • PRACH resource information described in this embodiment may refer to PRACH resource information of each cell under the base station.
  • the first base station receives the first information sent by the second base station, where the first information includes PRACH resource information of the beam recovery BFR, PRACH resource information of the on-demand system information OSI, and PRACH resource information of the uplink carrier.
  • the first information includes PRACH resource information of the beam recovery BFR, PRACH resource information of the on-demand system information OSI, and PRACH resource information of the uplink carrier.
  • the first access device is gNB-CU, which is simply called CU
  • the second access device is gNB-DU, which is simply called DU.
  • this embodiment of the present application uses a CU to include two DUs (DU1 and DU2) as an example.
  • another embodiment of a method for processing PRACH resources in the embodiment of the present application includes:
  • DU1 sends first information to a CU.
  • the DU1 sends first information to the CU, where the first information includes at least one of public PRACH resource information, BFR PRACH resource information, OSI PRACH resource information, and uplink carrier PRACH resource information.
  • the PRACH resource information of the uplink carrier includes PRACH resource information of a regular uplink carrier and / or PRACH resource information of a supplementary uplink carrier.
  • the common PRACH resource information can be understood as PRACH resource information common to each cell under DU1.
  • the first information may be sent in an interface message carried between the CU and the DU, and the interface message may be an F1 interface message, where the F1 interface message may be an existing F1 interface message, including
  • the UE-associated signaling message and the non-UE-associated message may also be newly defined F1 interface messages, which are not limited in this embodiment of the present application.
  • the F1 setup request message response message or the F1 setup request message or the base station configuration update message or the base station configuration update response message is included in the cell information in the message, for example.
  • step 201 The content and process of the first information sent by DU1 to the CU are similar to step 201, and details are not described herein again.
  • DU2 sends second information to the CU.
  • the parameters carried in the second information sent by DU2 are the same as the parameters carried in the first information sent by DU1.
  • the first information sent by DU1 includes PRACH resource information of the BFR of DU1
  • the first information sent by DU2 The second information also includes PRACH resource information of the BFR of DU2.
  • step 201 The content and process of sending the second information by the DU2 to the CU are similar to step 201, and details are not described herein again.
  • the format of the second information sent by DU2 in this application is the same as the format of the first information sent by DU1.
  • the first information sent by DU1 indicates the PRACH resource of BFR
  • the second information sent by DU2 indicates the PRACH resource of BFR.
  • the first information and the second information are both PRACH resources indicating BFR, that is, the same type of information is to be transmitted, and in order to facilitate CU identification, the format of the resources indicating BFR is the same, that is, the format is the same.
  • the first information and the second information here are only for distinguishing whether the sender of the information is DU1 or DU2.
  • the first information indicates that the sender is DU1
  • the second information indicates that the sender is DU2.
  • steps 401 and 402 there is no specific order between steps 401 and 402, and they can be performed simultaneously or sequentially. For example, step 401 is performed first, and then step 402 is performed; or step 402 is performed first, and then step 401 is performed; or Step 401 and step 402 are performed at the same time, which is not specifically limited here.
  • the CU performs processing according to the first information and the second information.
  • the CU uses the first information and the second information to optimize the random access channel RACH. It can be understood that the CU uses the first information and the second information to perform random access channel RACH on DU1 and DU2. The optimization may specifically optimize the PRACH resource configuration of DU1 and DU2.
  • the CU may synthesize the first information and the second information, and then perform random access channel RACH optimization on PRACH resources of DU1 and DU2, respectively.
  • the CU may obtain the PRACH resource information and / or the degree of proximity of the neighboring cell, so that the CU may optimize the PRACH resource configuration according to the PRACH resource information of the neighboring cell and the indication of the degree of proximity, or the CU may use the neighboring cell
  • the PRACH resource information and the indication of the degree of adjacentness are sent to the OAM, and the OAM optimizes the PRACH resource allocation.
  • the degree of adjacentity may be one or more of direct neighbors, indirect neighbors, and specific distances. It can be identified by 0/1/2, etc. (0 stands for direct neighbor, 1 stands for indirect neighbor, and 2 stands for a specific distance), or the degree of adjacency can be characterized by others, which is not limited in this application.
  • the CU sends a first instruction to DU1 or DU2, where the first instruction is used to instruct DU1 or DU2 to optimize a random access channel RACH.
  • the first indication may include a conflict type of PRACH resources.
  • the conflict type of PRACH resources includes at least one of a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and an uplink carrier PRACH resource conflict.
  • the PRACH resource conflicts of uplink carriers include PRACH resource conflicts of regular uplink carriers and / or PRACH resource conflicts of supplementary uplink carriers.
  • the CU may send the first indication of the PRACH resource conflict including the BFR to the DU1.
  • the DU1 needs to receive the PRACH resource of the BFR of the DU1. Configuration is optimized.
  • the CU decides which DU's PRACH resource to modify. For example, if DU2 is selected to modify the PRACH resource, the CU sends a first instruction to DU2. After receiving the first instruction, DU2 Modify the PRACH resource configuration of DU2.
  • the content and sending process of the specific first instruction is similar to step 203 of the foregoing embodiment, and details are not described herein again.
  • the CU finds PRACH resource conflicts between multiple DUs, for example, if the CU serves 4 DUs, where The PRACH resources of DU1, DU2, and DU3 conflict, so the CU can allocate non-conflicting PRACH resources to the two DUs (such as DU1 and DU2) in conflict, and the CU sends non-conflicting PRACH resources to DU1 and DU2, respectively.
  • the CU may not send the first indication to DU1 or DU2. It is understandable that the CU does not perform the optimization of the random access channel RACH, but the CU sends the first indication to the OAM, and the OAM performs the random access channel RACH Optimization, that is, optimization of PRACH resource allocation:
  • the CU may send a first indication to the OAM, and the OAM optimizes the random access channel RACH according to the first indication.
  • the PRACH resource of each DU described above may refer to the PRACH resource of a cell under the DU.
  • common PRACH resources can be interacted and conflicted with F1 establishment and configuration update messages
  • BFR PRACH resources can be interacted and conflicted with UE-specific messages, such as bearer setup messages.
  • DU1 or DU2 performs processing according to the first instruction.
  • step 204 in the first embodiment is not repeated here.
  • the CU receives the first information sent by DU1 and the second information sent by DU2.
  • the first information includes PRACH resource information of beam recovery BFR, PRACH resource information of on-demand system information OSI, and uplink carrier UL.
  • At least one of the PRACH resource information, the second information is the same as the first information
  • the CU optimizes the random access channel RACH according to the first information and the second, avoiding the dedicated PRACH resources of the BFR of the CU and each DU, the OSI At least one of the dedicated PRACH resource and the dedicated PRACH resource of the uplink carrier UL collide.
  • the DU (DU1 or DU2) that has received the first instruction sends the first instruction to OAM, and OAM performs the optimization of the random access channel RACH, and OAM performs the
  • the optimization of the random access channel RACH is a specific implementation, and details are not described in this embodiment.
  • the DU that has received the first instruction sends information for instructing OAM to optimize the random access channel RACH to OAM.
  • the specific format is not limited, as long as the OAM can optimize the random access channel RACH according to the information.
  • the PRACH resource information described in this embodiment may refer to the PRACH resource information of each cell under the DU, or the PRACH resource information of each cell under the CU.
  • the first access device is gNB-CU, which is simply called CU
  • the second access device is gNB-DU, which is simply called This is a DU.
  • two CUs source CU and target CU
  • the source CU is connected to one source DU and the target CU is connected.
  • the case of one target DU is exemplified.
  • another embodiment of a method for processing PRACH resources in the embodiment of the present application includes:
  • Scenario 1 A connection is established between the source CU and the target CU, and then each CU adds its own DU, that is, the CU directly establishes the Xn interface connection first, and then establishes the F1 interface between the CU and the corresponding DU, including:
  • a source CU and a target CU exchange first information through an Xn interface message, and the source CU and the target CU process according to the first information.
  • the source CU sends PRACH resource information of the source CU to the target CU through the Xn interface message
  • the target CU sends the PRACH resource information of the target CU to the source CU through the Xn interface message
  • the source CU or the target CU uses the acquired PRACH resource.
  • Information on the optimization of the random access channel RACH is the same as described in step 201 and step 202 of the first embodiment, and details are not described herein again.
  • the source CU sends a first instruction to the source DU, and the target CU sends a second instruction to the target DU.
  • the first instruction is used to instruct the source DU to perform random access channel RACH optimization
  • the second instruction is used to instruct the target DU to perform the optimization. Optimization of random access channel RACH.
  • the content and sending process of the first instruction and the second instruction are similar to step 203 of the first embodiment, and details are not described herein again.
  • the first or second instructions may be sent at the same time, or may not be sent at the same time, or only one of them may be sent, which is not limited in this embodiment of the present application.
  • first instruction sent by the source CU and the second instruction sent by the target CU in this application is the same.
  • the first instruction and the second instruction here are only for distinguishing whether the sender of the information is the source CU or the target CU.
  • the first indication indicates that the sender is the source CU, and the second indication indicates that the sender is the target CU.
  • the source CU and the source DU establish an F1 interface
  • the target CU establishes an F1 interface with the target DU
  • the first indication and the second indication are both through the F1 interface.
  • the message is sent, and the F1 interface message may be an existing F1 interface message or a newly defined F1 interface message, which is not limited herein.
  • the source CU determines a first available PRACH resource for the source DU
  • the target CU determines a second available PRACH resource for the target DU
  • the resource may be a specific PRACH resource, or may be a PRACH resource candidate list, which is not limited herein.
  • the process of establishing the respective F1 interface of the source CU and the target CU can be performed simultaneously or sequentially.
  • the F1 interface of the source CU is established first, and then the F1 interface of the target CU is established, or the target is established first.
  • the F1 interface of the CU can be established later, or the F1 interface of the source CU can also be established at the same time, which is not limited here.
  • the source DU and the target DU perform processing according to the first instruction and the second instruction, respectively.
  • step 204 in the first embodiment The processing process is similar to step 204 in the first embodiment, and details are not described herein again.
  • the following uses the candidate resource list of the first indication and the second indication as PRACH resources as an example to describe:
  • the source CU sends the first available PRACH resource to the source DU through the F1 interface message.
  • the target CU sends the second available PRACH resource to the target DU through the F1 interface message.
  • the source DU selects a suitable first PRACH resource
  • the target DU selects a suitable second PRACH resource.
  • the source DU sends the first PRACH resource to the source CU, so that the source CU learns the PRACH resource selected by the source DU.
  • the first PRACH resource may be the source DU sending the source DU to the source CU through an F1 interface message. .
  • the target DU sends a first PRACH resource to the target CU, so that the target CU learns the PRACH resource selected by the target DU.
  • the first PRACH resource may be the target DU sending the target CU to the target CU through an F1 interface message. .
  • the source DU and the target DU need to send the modified PRACH resource information to the source CU and the target CU.
  • the modification The subsequent PRACH resource information may be that the source DU and the target DU are sent to the source CU and the target CU through the F1 interface message, and the source CU and the target CU may further optimize the random access channel RACH.
  • the F1 interface message may be an existing F1 interface message or a newly defined F1 interface message, which is not limited in this embodiment of the present application.
  • Scenario 2 The source CU first establishes the F1 interface with the source DU, and then the source CU establishes the Xn interface connection with the target CU, and then the target CU establishes the F1 interface with the target DU.
  • FIG. 6 Another embodiment of the method includes:
  • the source CU obtains first information of a source DU.
  • the content and transmission process of the first information are similar to step 201 in the first embodiment, and details are not described herein again.
  • the source CU and the source DU exchange the first information through an F1 interface message.
  • the source CU sends the obtained first information to the target CU.
  • the content and transmission process of the first information are similar to step 201 in the first embodiment, and details are not described herein again.
  • the target CU performs processing according to the first information.
  • the target CU uses the received first information to optimize the random access channel RACH. It can be understood that the target CU allocates non-conflicting PRACH resources to the target DU after performing PRACH resource information coordination.
  • the target CU allocates a PRACH resource candidate set to the target DU, which is selected by the target DU itself.
  • the target CU coordinates the PRACH resource with the PRACH resource of the source CU obtained by the Xn interface, and re-allocates a new PRACH resource for the target DU.
  • the new PRACH resource does not conflict with the PRACH resource of the source CU.
  • the target CU sends a first instruction to the target DU, where the first instruction is used to instruct the target DU to optimize a random access channel RACH.
  • the content of the first instruction and the transmission process are similar to step 203 of the first embodiment, and details are not described herein again.
  • the target DU performs processing according to the first instruction.
  • step 204 in the first embodiment The specific processing procedure is similar to step 204 in the first embodiment, and details are not described herein again.
  • the new PRACH resource may be sent to the source CU through the target CU. Further, the source CU may send the new PRACH resource to the source DU.
  • Scenario 3 Both the source CU and the target CU have established an F1 interface with their respective DUs, and then an Xn interface connection is established between the source CU and the target CU.
  • An embodiment includes:
  • the source DU sends the first information to the source CU through the F1 interface message, and the target DU sends the second information to the target CU through the F1 interface message.
  • step 201 in the first embodiment The content and the specific process of sending the first information and the second information are similar to step 201 in the first embodiment, and are not repeated here.
  • the content format of the first information sent by the source DU and the second information sent by the target DU in this application is the same.
  • the first information and the second information here are only for distinguishing whether the sender of the information is the source DU or the target.
  • DU the first information indicates that the sender is the source DU
  • the second information indicates that the sender is the target DU.
  • the process in which the source DU sends the first information to the source CU and the process in which the target DU sends the second information to the target CU may be performed simultaneously, sequentially, or separately, which is not limited herein.
  • the source CU sends first information to the target CU, and the target CU sends second information to the source CU.
  • the process in which the source CU sends the first information to the target CU and the process in which the target CU sends the second information to the source CU can be performed simultaneously, sequentially, or separately, which is not limited herein.
  • the source CU or the target CU performs processing according to the first information or the second information.
  • the source CU or the target CU uses the received first information or the second information to optimize the random access channel RACH. It can be understood that the source CU or the target CU uses the received first information or the second information to perform randomization. Optimization of access channel RACH.
  • step 202 in the first embodiment is not repeated here.
  • the source CU sends a first indication to the source DU, or the target CU sends a first indication to the target DU.
  • step 203 of the first embodiment The content of the first specific instruction and the sending process are similar to step 203 of the first embodiment, and details are not described herein again.
  • the first indication is sent through an F1 interface message
  • the F1 interface message may be an existing F1 interface message or a newly defined message, which is not limited herein.
  • the source DU or the target DU performs processing according to the first instruction.
  • step 204 in the first embodiment The specific processing procedure is similar to step 204 in the first embodiment, and details are not described herein again.
  • the source CU finds a PRACH resource conflict, it sends a conflict indication to the source DU, or allocates a new PRACH resource for the source DU; or, if the target CU finds a PRACH resource conflict, it sends a conflict indication to the target DU, or it is a target DU Allocate new PRACH resources.
  • the specific process is similar to step 204 in the first embodiment, and details are not described herein again.
  • the source CU receives the first information sent by the source DU
  • the target CU receives the second information sent by the target DU.
  • the first information and the second information include a PRACH of the beam recovery BFR.
  • At least one of resource information, on-demand system information OSI PRACH resource information, and uplink carrier PRACH resource information, and the random access channel RACH is optimized according to the first information and the second information, avoiding the target CU / source DU and A conflict occurs in at least one of a dedicated PRACH resource of the BCU of the source CU, a dedicated PRACH resource of the OSI, and a dedicated PRACH resource of the uplink carrier UL.
  • the PRACH resource information described in all the embodiments of the present application may refer to the PRACH resource information of each cell under the DU, or the PRACH resource information of each cell under the CU.
  • F1 interface messages or V1 interface messages may use F1 interface messages or V1 interface messages (F1AP or V1AP messages).
  • the existing F1AP messages may be gNB-CU / gNB-DU configuration update messages (configuration update) , Or gNB-CU / gNB-DU configuration update response message (configuration update acknowledgement), or UE context creation / modification request message (user context setup / modification request), or UE context establishment / modification response message (user context setup) / modification (response), or UE context establishment / modification request message (user context / setup / modification required), or UE context release command / request / complete message (UE context release command / request / complete).
  • the third embodiment and the fourth embodiment described the CU-DU scenario of the NR.
  • the EN-DC scenario and the MR-DC scenario are shown in FIG. 8.
  • the specific process is similar to the CU-DU scenario described above.
  • the EN-DC scenario also includes an Intra MN scenario and an Inter MN scenario.
  • the Intra MN scenario includes a master node (MN) and the MN supports multiple secondary nodes (Secondary Nodes, SN);
  • the Inter-MN scenario includes multiple MNs, and each MN has an interface. Each MN can also exchange information with one or more SNs that it supports.
  • Step 1 The secondary base station sends the first information to the primary base station.
  • step 301 The content and sending process of the first information are similar to step 301, and details are not described herein again.
  • Step 2 The master base station performs processing according to the first information.
  • step 302 The specific processing procedure is similar to step 302, and is not repeated here.
  • Step 3 The primary base station sends a first instruction to the secondary base station, where the first instruction is used to instruct the secondary base station to optimize the random access channel RACH.
  • Step 4 The secondary base station performs processing according to the first instruction.
  • step 304 The specific processing procedure is similar to step 304, and is not repeated here.
  • the EN-DC Intra MN scenario is used as an example for illustration.
  • MN corresponds to SN1 and SN2.
  • the specific steps are as follows:
  • Step 1 SN1 sends first information to the MN.
  • step 401 The content and the sending process of the first information are similar to step 401, and are not repeated here.
  • Step 2 SN2 sends second information to the MN.
  • the content and the sending process of the second information are similar to step 402, and are not repeated here.
  • Step 3 The MN performs processing according to the first information and the second information.
  • step 403 The specific processing procedure is similar to step 403, and is not repeated here.
  • Step 4 The MN sends a first instruction to SN1 or SN2, where the first instruction is used to instruct SN1 or SN2 to optimize the random access channel RACH.
  • step 404 The content and sending process of the specific first instruction is similar to step 404 in the foregoing embodiment, and details are not described herein again.
  • Step 5 SN1 or SN2 performs processing according to the first instruction.
  • step 405 The specific processing procedure is similar to step 405, and is not repeated here.
  • MN1 corresponds to SN1
  • MN2 corresponds to SN2.
  • the specific steps are as follows:
  • Step 1 MN1 and MN2 exchange first information through an Xn interface message, and MN1 and MN2 perform processing according to the first information.
  • step 501 The specific processing procedure is similar to step 501, and is not repeated here.
  • Step 2 MN1 and SN1 establish an X2 / Xn interface, and MN2 and SN2 establish an X2 / Xn interface.
  • Step 3 MN1 sends the first available PRACH resource to SN1 through an X2 / Xn interface message.
  • the process of sending and receiving the first available PRACH resource is similar to step 503, and is not repeated here.
  • Step 4. MN2 sends the second available PRACH resource to SN2 through an X2 / Xn interface message.
  • the internal and sending process of the second available PRACH resource is similar to step 503, and is not repeated here.
  • Step 5 SN1 selects a suitable PRACH resource after receiving the first available PRACH resource, and SN2 selects a suitable PRACH resource after receiving the second available PRACH resource.
  • step 505 The specific selection process is similar to step 505, and is not repeated here.
  • the interface between the MN and the SN is the X2 interface or the Xn interface of the EN-DC.
  • the rest of the scenarios are similar and will not be repeated here.
  • the common PRACH resource can use the EN-DC X2 setup message for interaction and conflict indication, and the BFR PRACH resource can perform interaction and conflict indication in the SN addition / modification message.
  • the solution provided in this application can also be applied in the MR-DC scenario.
  • the MR-DC scenario is similar to the EN-DC scenario.
  • the main base station is an LTE base station (eNB), and the LTE core network is connected.
  • the main base station is a NR base station (gNB), which is connected to the core network of the NR, and the interface between the MN and the SN is an X2 / Xn interface.
  • gNB NR base station
  • a dedicated PRACH resource that coordinates BFR / OSI is introduced, thereby avoiding mutual interference caused by adjacent cells using the same preamble sequence when BFR / OSI occurs.
  • the PRACH resource coordination of the DU under the CU-DU architecture and the PRACH resource coordination of the SN under the MR-DC architecture are considered, which reduces the interference between the DUs and the SNs.
  • the physical random access channel PRACH resource processing method shown in this embodiment is applied to the NR's CU-DU architecture; under the NR's CU-DU architecture, the first access device shown in this embodiment is gNB-CU It is simply called CU, and the third access device is gNB-DU, which is simply called DU.
  • the first access device shown in this embodiment is gNB-CU It is simply called CU
  • the third access device is gNB-DU, which is simply called DU.
  • Another method of processing PRACH resources in the embodiment of the present application is as follows.
  • An embodiment includes:
  • the first access device sends third information to the third access device.
  • the third access device shown in this embodiment may be one of at least one access device supported by the first access device, and the third information includes a PRACH resource in a neighborhood of the third access device.
  • the neighboring cell of the third access device refers to the neighboring cell of the cell under the third access device, and the PRACH resource information of the neighboring cell includes PRACH resource information of the direct neighboring cell and PRACH resource of the indirect neighboring cell.
  • the directly adjacent cell is a cell directly adjacent to the cell is called a direct neighbor
  • the indirect neighbor is a cell directly adjacent to the cell is called an indirect neighbor
  • the third access The neighboring cell of the device may be determined by the first access device, or may be determined in other manners, which is not limited in the embodiment of the present application.
  • the third information may include at least one neighboring cell of a first target cell under the third access device, where the first target cell is any cell under the third access device.
  • the specific number of the first target cells is not limited, that is, the number of the first target cells is one or more.
  • the third access device may request the first access device to obtain third information of the first target cell under the third access device.
  • the third access device may request The first access device sends an identifier of a first target cell under the third access device and / or an identifier of a second target cell under the first access device, and the first access device sends a third to the third access device.
  • the second target cell is any one or more cells under the first access device, that is, the second target cell is a direct neighbor of the first target cell under the third access device, which needs to be explained
  • the third access device may obtain the information of the second target cell from the first access device in advance, and the specific number of the second target cells is not limited in this application, that is, the first The data of the two target cells is one or more.
  • the PRACH resource information includes at least one of public PRACH resource information, BFR PRACH resource information, OSI PRACH resource information, and uplink carrier PRACH resource information.
  • the common PRACH resource information can be understood as PRACH resource information common to each cell under the third access device, that is, BFR or OSI or an uplink carrier or supplementary PRACH resource information common to the uplink carrier; the PRACH resource information of the uplink carrier Including PRACH resource information of regular uplink carriers and / or PRACH resource information of supplementary uplink carriers.
  • the PRACH resource information may include public PRACH resource information alone, and the PRACH resource information may include BFR PRACH resource information alone, and the PRACH resource information may include OSI's PRACH resource information alone.
  • the PRACH resource information may include PRACH resource information of an uplink carrier separately.
  • the PRACH resource information may include a combination of any two of public PRACH resource information, BFR PRACH resource information, OSI PRACH resource information, and uplink carrier PRACH resource information.
  • the specific combination is not limited, such as
  • the PRACH resource information may include public PRACH resource information and BFR PRACH resource information.
  • the PRACH resource information may include any three combinations of public PRACH resource information, BFR PRACH resource information, OSI PRACH resource information, and uplink carrier PRACH resource information, and the specific combination is not limited, such as
  • the PRACH resource information may include public PRACH resource information, BFR PRACH resource information, and OSI PRACH resource information.
  • the PRACH resource information may include all information in public PRACH resource information, BFR PRACH resource information, OSI PRACH resource information, and uplink carrier PRACH resource information.
  • the third access device may include a cell 1, a cell 2, and a cell 3; a neighboring cell of the cell 1 includes a cell 2, a cell 3, a cell 4, and a cell 5, where the cell 2 and the cell 3 are directly Adjacent cells, cell 4 and cell 5 are indirect neighbors of cell 1.
  • the neighbors of cell 2 include cell 1, cell 3, cell 4, and cell 5, where cell 1 and cell 3 are direct neighbors of cell 2. 4.
  • Cell 5 is an indirect neighbor of cell 2.
  • Cell 3's neighbors include cell 1, cell 2, cell 6, and cell 7, where cell 2 and cell 1 are direct neighbors of cell 3, cell 6, and cell 7.
  • the PRACH resources of the neighboring cell of cell 1 include the PRACH resources of cell 2, cell 3, cell 4, and cell 5, and the PRACH resources of the neighboring cell of cell 2 include cell 1 and cell 3.
  • PRACH resources in cell 4, cell 5, and PRACH resources in the neighboring cell of cell 3 include PRACH resources in cell 2, cell 1, cell 6, and cell 7.
  • the first access device sends the first access device to the third access device.
  • the three pieces of information include the PRACH resource information of the neighboring cell of cell 1, the PRACH resource information of the neighboring cell of cell 2, and the At least one of PRACH resource information of a neighboring cell.
  • the cell 4, cell 5, cell 6, and cell 7 may be cells under other access devices (for example, here the first access device is CU1, the third access device is DU1 under the CU1, and other access The device is DU2 under the CU, or the other access device is a DU under CU2), or may be a cell under other base stations, which is not limited in this embodiment of the present application.
  • the first access device may obtain PRACH resource information of at least one cell under the neighboring base station, the fourth access device, and the fifth access device.
  • the fourth access device is an access device adjacent to the first access device.
  • the fourth access device may be CU2 adjacent to CU1 or CU1.
  • Adjacent gNB the fifth access device is an access device adjacent to the third access device.
  • the third access device is DU1 under CU1
  • the fifth access device is under CU1.
  • the first access device may obtain PRACH resource information of a cell under each third access device under the first access device, for example, through X2, Xn between the first access device and the third access device. Or the F1 interface, or the first access device may also obtain PRACH resource information of the cell under the fourth access device or the neighboring base station or the fifth access device, for example, through the X2 / Xn interface.
  • the first access device may determine a neighboring cell of the third access device according to the obtained information, that is, determine a neighboring cell of a cell under the first access device. The process may be performed before this step, or may be performed in other possible steps, which are not limited in the embodiment of the present application.
  • the first access device may also obtain the degree of adjacency of at least one of the neighboring base station, the neighboring cell, the fourth access device, and the fifth access device.
  • the first access device may Send a request to at least one of the neighboring base station, the neighboring cell, the fourth access device, and the fifth access device, so that at least one of the neighboring base station, the neighboring cell, the fourth access device, and the fifth access device Responding to the request to the first access device with the neighboring degree, the neighboring degree refers to at least one cell under the first access device and at least one neighboring base station, the fourth access device, and the fifth access device
  • the degree of proximity of a cell can be one or more of direct neighbor, indirect neighbor, and specific distance.
  • the degree of neighborness can be identified by 0/1/2, etc. (0 represents direct neighbor, 1 represents indirect neighbor, and 2 represents Specific distance), or the degree of adjacentness may also be characterized by other, which is not limited in the embodiment of the present application.
  • the first access device may further send an instruction to at least one of a neighboring base station, a fourth access device, and a fifth access device, where the instruction is used to specify to acquire neighboring cell information in a specific cell, so The instruction may be carried in an existing message of the existing X2 / Xn / F1 or a newly defined message, which is not limited in the embodiment of the present application.
  • first access device may be implemented through existing interface messages such as X2, Xn, F1, and V1, or other forms of messages. Examples are not limited here.
  • the third access device optimizes the random access channel RACH according to the third information.
  • the third access device optimizes the random access channel RACH according to the PRACH resource information of the neighboring area of the third access device. It can be understood that the third access device is based on the PRACH resources of the neighboring area of the third access device. The information is used to optimize the random access channel RACH. Specifically, the third access device determines whether the PRACH of the cell under the third access device is needed according to the PRACH resource information of the neighboring cell of each cell under the third access device. The resource performs the random access channel RACH optimization.
  • the third access device reconfigures a set of PRACH resources for the cell, or the third access device informs OAM, and OAM is responsible for The cell configures a set of PRACH resources.
  • the embodiments of the present application are not limited herein.
  • the third access device receives the PRACH resource information of the neighboring cell of the cell 1 under the third access device sent by the first access device, and the third access device determines the PRACH resource information of the cell 1 and the PRACH of the neighboring cell. Whether the resource information conflicts. If the resource information conflicts, the third access device reconfigures a group of PRACH resources for the cell 1.
  • the third access device sends the optimized PRACH resource to the first access device.
  • Step 1303 shown in this embodiment is an optional step.
  • the third access device obtains third information sent by the first access device, where the third information includes the first information.
  • the PRACH resource information of the neighboring cells of the three access devices so that the third access device can optimize the random access channel RACH according to the third information, thereby avoiding conflicts in PRACH resources between cells under the first access device.
  • the third access device may also send the third information to the OAM, and the OAM processes the information according to the third information.
  • the specific process of the OAM processing according to the third information can be referred to the above.
  • the process of the third access device according to the third information is not described in detail. For example, if OAM optimizes the random access channel RACH according to the third information, PRACH between cells under the first access device is avoided. A resource conflict occurs, and the OAM may send the optimized PRACH resource to a third access device.
  • the following describes the fourth embodiment in detail with reference to the specific application scenario shown in FIG. 14.
  • the NR CU-DU architecture is used as an example, that is, the first access device is The gNB-CU is simply called the CU, and the third access device is the gNB-DU, which is simply called the DU.
  • a CU supports multiple DUs, that is, an Intra CU scenario, please refer to FIG. 14.
  • the CU sends third information to the DU.
  • the third information includes PRACH resource information of a neighboring cell of the DU.
  • the neighboring cell of the DU refers to at least one neighboring cell of a first target cell under the DU, and the first target cell may be a cell under the DU.
  • the specific number of the first target cell is not limited in this application.
  • the meaning of the neighboring cell please refer to FIG. 13 for details.
  • the PRACH resource information please refer to FIG. 13 for details, and details are not described herein.
  • the CU may obtain PRACH resource information of at least one cell under a neighboring base station, a neighboring CU, and a neighboring DU.
  • the adjacent DUs also include other DUs served under the CU.
  • the CU can obtain the PRACH resource information of the cells under each DU under the CU, for example, through the F1 interface between the CU and the DU, or the CU can also obtain the neighboring CU or the neighboring base station or the neighboring DU.
  • the PRACH resource information of the cell is obtained, for example, through an X2 / Xn interface.
  • the CU may determine a neighboring cell of the DU according to the obtained information, that is, determine a neighboring cell of a cell under the CU.
  • the CU may also obtain the degree of neighborness of at least one of the neighboring base stations, neighboring cells, neighboring CUs, and neighboring DUs.
  • the neighboring degree refers to the cells under the CU and neighboring base stations, neighboring CUs, The degree of adjacency of the cells under at least one of the adjacent DUs. For a detailed description of the degree of adjacency, please refer to FIG. 13, and details are not described in detail.
  • the DU optimizes the random access channel RACH according to the third information.
  • the DU optimizes the random access channel RACH according to the PRACH resource information of the neighboring cell of the DU. Specifically, the DU determines whether the PRACH resource of the cell under the DU is needed according to the PRACH resource information of the neighboring cell of each cell under the DU.
  • the random access channel RACH is configured to be optimized. If it is determined that the PRACH resources of a certain cell need to be optimized, the DU reconfigures a set of PRACH resources for the cell, or the DU informs OAM that the OAM configures a set of PRACH resources for the cell.
  • the embodiments of the present application are not limited herein.
  • the DU receives the PRACH resource information of the neighboring cell of the cell 1 under the DU sent by the CU.
  • the DU determines whether the PRACH resource information of the cell 1 and the PRACH resource information of the neighboring cell conflict. If there is a conflict, the DU reconfigures a group of cells for the cell 1. PRACH resources.
  • the DU sends the optimized PRACH resource to the CU.
  • this step is an optional step, and whether to execute it is not limited in this application scenario.
  • the DU obtains third information sent by the CU, where the third information includes PRACH resource information of a neighboring cell of the DU, so that the DU can optimize a random access channel RACH according to the third information, and avoid PRACH resources conflicting between CU and DU.
  • the DU may also send the third information to the OAM, and the OAM performs processing according to the third information.
  • the OAM processing according to the third information refer to the DU according to the third information shown above. The process of processing is not described in detail.
  • the OAM may send the optimized PRACH resources to the sender. To DU.
  • the method / step implemented by the access device may also be implemented by a component (such as a chip or a circuit) that can be used for the access device.
  • An embodiment of the first access device 900 in the embodiment of the present application includes:
  • a receiving module 901 is configured to receive first information from a second access device, where the first information includes PRACH resource information of beam recovery BFR, PRACH resource information of on-demand system information OSI, and PRACH resource information of uplink carrier UL. At least one of
  • the processing module 902 is configured to perform processing according to the first information.
  • the first access device receives the first information sent by the second access device, and recovers the PRACH resource information of the BFR, the PRACH resource information of the on-demand system information OSI, and the uplink carrier according to the beam carried in the first information.
  • At least one of the PRACH resource information of the UL optimizes the random access channel RACH, thereby avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, the dedicated PRACH resources of the OSI, and the dedicated PRACH of the uplink carrier UL. At least one of the resources conflicted.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of the conventional uplink carrier and / or supplementary PRACH resource information of the uplink carrier, thereby avoiding the conventional uplink carrier of the first access device and the second access device. At least one of the dedicated PRACH resources and / or the dedicated resources of the PRACH supplementing the uplink carrier collide.
  • the first information further includes public PRACH resource information, or public PRACH resource information and a length format indication of the public PRACH resource.
  • the PRACH resource information includes at least one of a root sequence index, cyclic shift, high-speed identification, PRACH frequency offset, and PRACH configuration index.
  • the first access device 900 further includes:
  • a sending module 903 is configured to send a first indication to the second access device, where the first indication includes a PRACH resource conflict indication, a PRACH resource conflict type, a PRACH resource candidate resource list, and a PRACH resource length format indication. At least one of.
  • the conflict type of the PRACH resource includes at least one of a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and an uplink carrier PRACH resource conflict.
  • the PRACH resource conflict of the uplink carrier includes a PRACH resource conflict of a regular uplink carrier and / or a PRACH resource conflict of a supplementary uplink carrier.
  • the first indication further includes a candidate PRACH resource.
  • the first access device is a first new radio access technology NR base station, and the second access device is a second NR base station; or, the first access device is a centralized unit CU, The second access device is a distributed unit DU; or the first access device is a distributed unit DU and the second access device is a centralized unit CU; or the first access device It is an NR base station, and the second access device is a long-term evolution LTE base station; or, the first access device is an LTE base station, and the second access device is an NR base station.
  • the second access device shown in the embodiment of the present application is configured to execute the steps performed by the second access device shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, and FIG. Please refer to Fig. 2, Fig. 3, Fig. 5, Fig. 6, and Fig. 7 for details of the execution process.
  • An embodiment of the second access device 1000 in the embodiments of the present application includes:
  • a determining module 1001 is configured to determine first information, where the first information includes at least one of PRACH resource information of beam recovery BFR, PRACH resource information of on-demand system information OSI, and PRACH resource information of uplink carrier UL;
  • the sending module 1002 is configured to send the first information to a first access device.
  • the second access device sends first information to the first access device, where the first information carries PRACH resource information of beam recovery BFR, PRACH resource information of on-demand system information OSI, and uplink carrier UL At least one of the PRACH resource information, so that the first access device optimizes the random access channel RACH, avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, and the dedicated PRACH resources of the OSI And at least one of the dedicated PRACH resources of the uplink carrier UL collides.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or PRACH resource information of a supplementary uplink carrier.
  • the first information further includes public PRACH resource information, or public PRACH resource information and a length format indication of the public PRACH resource.
  • the PRACH resource information includes at least one of a root sequence index, cyclic shift, high-speed identification, PRACH frequency offset, and PRACH configuration index.
  • the second access device 1000 further includes:
  • the receiving module 1003 is configured to receive a first indication from the first access device, where the first indication includes a PRACH resource conflict indication, a PRACH resource conflict type, a PRACH resource candidate resource list, and a PRACH resource length format indication. At least one of.
  • the conflict type of the PRACH resource includes at least one of a common PRACH resource conflict, a BFR PRACH resource conflict, an OSI PRACH resource conflict, and an uplink carrier PRACH resource conflict.
  • the PRACH resource conflict of the uplink carrier includes a PRACH resource conflict of a regular uplink carrier and / or a PRACH resource conflict of a supplementary uplink carrier.
  • the first access device is a first new radio access technology NR base station, and the second access device is a second NR base station; or, the first access device is a centralized unit CU, The second access device is a distributed unit DU; or the first access device is a distributed unit DU and the second access device is a centralized unit CU; or the first access device It is an NR base station, and the second access device is a long-term evolution LTE base station; or, the first access device is an LTE base station, and the second access device is an NR base station.
  • the first indication further includes a candidate PRACH resource.
  • the first access device shown in the embodiment of the present application is configured to execute the steps performed by the first access device shown in FIG. 13 and FIG. 14. For a specific execution process, see FIG. 13 and FIG. It is shown in 14 and will not be described in detail.
  • An embodiment of the first access device 1500 in the embodiments of the present application includes:
  • the obtaining module 1501 is configured to obtain third information, where the third information includes PRACH resource information of at least one neighboring cell of the third access device, and the PRACH resource information includes PRACH resource information and on-demand system information of the beam restoration BFR. At least one of the PRACH resource information of the OSI, the common PRACH resource information, and the PRACH resource information of the uplink carrier UL;
  • the sending module 1502 is configured to send the third information to the third access device.
  • the first access device sends the third information to the third access device.
  • the third access device In order to enable the third access device to optimize the random access channel RACH according to the third information, collision of PRACH resources between cells under the first access device is avoided.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or PRACH resource information of a supplementary uplink carrier.
  • the third information further includes a length format indication of a common PRACH resource.
  • the PRACH resource information includes at least one of a root sequence index, cyclic shift, high-speed identification, PRACH frequency offset, and PRACH configuration index.
  • the third access device is one of at least one access device supported by the first access device, and the neighborhood of the third access device refers to the third access device.
  • the obtaining module 1501 includes:
  • a first acquisition submodule 15011 is configured to acquire PRACH resource information from at least one cell under a neighboring base station, a fourth access device, and a fifth access device, where the fourth access device is connected to the first access device.
  • An access device adjacent to the access device, and the fifth access device is an access device adjacent to the third access device;
  • a second acquisition submodule 15012 is configured to determine PRACH resource information of a neighboring cell of the third access device according to the acquired PRACH resource information.
  • the PRACH resource information that has been acquired by the first acquisition submodule 15011 includes at least one degree of proximity, and the at least one degree of proximity is used to indicate that a cell under the first access device is related to the cell The degree of adjacentness between the neighboring base station, the fourth access device, and at least one cell under the fifth access device, wherein the fourth access device is adjacent to the first access device An access device, and the fifth access device is an access device adjacent to the third access device.
  • the first access device is a centralized unit CU
  • the third access device is a distributed unit DU.
  • the third access device shown in the embodiment of the present application is used to execute the steps performed by the third access device shown in FIG. 13 and FIG. 14. For a specific execution process, please refer to FIG. 13 and FIG. It is shown in 14 and will not be described in detail.
  • An embodiment of the third access device 1600 in the embodiments of the present application includes:
  • a receiving module 1601 is configured to receive third information from a first access device, where the third information includes PRACH resource information of at least one neighboring cell of the third access device, and the PRACH resource information includes PRACH resources of a beam recovery BFR. At least one of information, PRACH resource information of on-demand system information OSI, public PRACH resource information, and PRACH resource information of uplink carrier UL;
  • the processing module 1602 is configured to perform processing according to the third information.
  • the third access device performs processing according to the third information.
  • the third access device can optimize the random access channel RACH according to the third information, thereby avoiding the occurrence of PRACH resources between cells under the first access device. conflict.
  • the PRACH resource information of the uplink carrier UL includes PRACH resource information of a regular uplink carrier and / or PRACH resource information of a supplementary uplink carrier.
  • the third information further includes a length format indication of a common PRACH resource.
  • the PRACH resource information includes at least one of a root sequence index, cyclic shift, high-speed identification, PRACH frequency offset, and PRACH configuration index.
  • the third access device is one of at least one access device supported by the first access device, and the neighborhood of the third access device refers to the third access device.
  • the PRACH resource information includes at least one degree of proximity, and the at least one degree of proximity is used to indicate that a cell under the first access device is related to the neighboring base station, the fourth access device, and the first The degree of proximity of at least one cell under the five access devices, wherein the fourth access device is an access device adjacent to the first access device, and the fifth access device is an access device adjacent to the first access device. The access device adjacent to the third access device.
  • the first access device is a centralized unit CU
  • the third access device is a distributed unit DU.
  • FIG. 11 is a schematic structural diagram of an access device according to an embodiment of the present application.
  • the access device 1100 may have a large difference due to different configurations or performance, and may include one or more processors (central processing units, CPUs).
  • 1101 eg, one or more processors
  • memory 1109 e.g. one or more storage media
  • storage media 1108 e.g, one or more storage devices
  • the memory 1109 and the storage medium 1108 may be temporary storage or persistent storage.
  • the program stored in the storage medium 1108 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the access device.
  • the processor 1101 may be configured to communicate with the storage medium 1108, and execute a series of instruction operations in the storage medium 1108 on the access device 1100.
  • the access device 1100 may also include one or more power sources 1102, one or more wired or wireless network interfaces 1103, one or more input / output interfaces 1104, and / or, one or more operating systems 1105, such as Windows Serve, Mac OS X, Unix, Linux, FreeBSD, etc.
  • operating systems 1105 such as Windows Serve, Mac OS X, Unix, Linux, FreeBSD, etc.
  • the processor 1101 may perform processing according to the processing method of the set PRACH resource.
  • the processor 1101 uses various interfaces and lines to connect various parts of the entire access device, and executes the access device by running or executing software programs and / or modules stored in the memory 1109 and calling data stored in the memory 1109.
  • Various functions and processing data to achieve the coordination or optimization of PRACH resources.
  • the memory 1109 may be used to store software programs and modules.
  • the processor 1101 executes various functional applications and data processing of the access device 1100 by running the software programs and modules stored in the memory 1109.
  • the memory 1109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one function required application program (such as sending first information, etc.), etc .; the storage data area may store data according to the access device Use of the created data (such as conflict types of PRACH resources, etc.).
  • the memory 1109 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the program of the method for processing PRACH resources and the received data stream provided in the embodiments of the present application are stored in a memory, and when needed, the processor 1101 is called from the memory 1109.
  • FIG. 12A is a schematic structural diagram of an access device according to an embodiment of the present application, referring to FIG. 12A.
  • FIG. 12A shows a possible structural diagram of an access device involved in the foregoing embodiment.
  • the access device 1200 includes a processing module 1202 and a communication module 1203.
  • the processing module 1202 is configured to control and manage the actions of the access device.
  • the processing module 1202 is configured to support the access device to perform steps 202 and 204, steps 302 and 304, steps 403 and 405, and steps of the foregoing embodiment. 501 and step 503, step 603 and step 605, step 703 and step 705, and / or other processes for the techniques described herein.
  • the communication module 1203 is configured to support communication between the access device and other network entities.
  • the access device may further include a storage module 1201, configured to store program code and data of the access device.
  • processing module 1202 can specifically perform the functions of the processing module 902 in FIG. 9, the processing module 1202 can perform the functions of the determination module 1001 in FIG. 10, and the processing module 1202 can specifically perform the functions of the acquisition module 1501 in FIG. 15.
  • Module 1202 may specifically perform the functions of processing module 1602 in FIG. 16, and communication module 1203 may specifically perform the functions of receiving module 901 and sending module 903 in FIG. 9.
  • Communication module 1203 may perform the functions of sending module 1002 and receiving module 1003 in FIG. 10.
  • the communication module 1203 may perform the function of the sending module 1502 in FIG. 15, and the communication module 1203 may perform the function of the receiving module 1601 in FIG. 16.
  • the processing module 1202 may be a processor or a controller.
  • the processing module 1202 may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit. integrated circuit (ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the present disclosure.
  • a processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module 1203 may be a communication interface, a transceiver, a transceiver circuit, and the like. Among them, the communication interface is collectively referred to and may include one or more interfaces, such as a transceiver interface.
  • the storage module 1201 may be a memory.
  • the access device involved in this embodiment of the present application may be the access device shown in FIG. 12B.
  • the access device 1210 includes a processor 1212, a communication interface 1213, and a memory 1211.
  • the access device 1210 may further include a bus 1214.
  • the communication interface 1213, the processor 1212, and the memory 1211 can be connected to each other through a bus 1214.
  • the bus 1214 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA). Bus, etc.
  • the bus 1214 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only a thick line is used in FIG. 12B, but it does not mean that there is only one bus or one type of bus.
  • the communication interface 1213 is configured to perform steps 201 and 203 in FIG. 2, steps 301 and 303 in FIG. 3, steps 401 to 402 and 404 in FIG. 4, steps 502 in FIG. 5, and steps in FIG. 6. Steps 601 to 602 and step 601, and steps 701 to 702 and step 704 in FIG. 7, steps 1301 and 1303 in FIG. 13, steps 1401 and 1403 in FIG. 14 are not repeated here.
  • the processor 1212 is further configured to perform steps 202 and 204 in FIG. 2 described above, and details are not described herein again.
  • the processor 1212 is further configured to perform steps 302 and 304 in FIG. 3 described above, and details are not described herein again.
  • the processor 1212 is further configured to execute steps 403 and 405 in FIG. 4 described above, and details are not described herein again.
  • the processor 1212 is further configured to execute steps 501 and 503 in FIG. 5 described above, and details are not described herein again.
  • the processor 1212 is further configured to execute steps 603 and 605 in FIG. 6 described above, and details are not described herein again.
  • the processor 1212 is further configured to execute step 1302 in FIG. 13 described above, and details are not described herein again.
  • the processor 1212 is further configured to execute step 1402 in FIG. 14 described above, and details are not described herein again.
  • the processor 1212 is further configured to execute steps 703 and 705 in FIG. 7 described above, and details are not described herein again.
  • the second access device sends the first information to the first access device, where the first information includes at least one of PRACH resource information of beam recovery BFR and PRACH resource information of on-demand system information OSI So that the first access device optimizes the random access channel RACH according to the first information, thereby avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, the dedicated PRACH resources of the OSI, and the uplink carrier UL A conflict occurs in at least one of the dedicated PRACH resources, the dedicated PRACH resources of the regular uplink carrier, and the dedicated resources of the PRACH supplementing the uplink carrier.
  • the first information includes at least one of PRACH resource information of beam recovery BFR and PRACH resource information of on-demand system information OSI So that the first access device optimizes the random access channel RACH according to the first information, thereby avoiding the dedicated PRACH resources of the BFR of the first access device and the second access device, the dedicated PRACH resources of the OSI, and the uplink carrier UL A conflict occurs in at least one of the dedicated PRACH resources
  • the computer involved in this application may be a device that performs functions of various modules in the foregoing embodiments.
  • the computer may be a device that integrates each functional module in the above embodiments.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the integrated modules may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium. , Including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

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Abstract

本申请公开了一种物理随机接入信道PRACH资源的处理方法及装置，用于解决新无线接入技术NR系统下的PRACH资源干扰问题。本申请实施例方法包括：第一接入设备从第二接入设备接收第一信息，第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；第一接入设备根据所述第一信息进行处理。

Description

一种物理随机接入信道PRACH资源的处理方法及装置
本申请要求于2018年9月28日提交中国专利局、申请号为201811146179.6、发明名称为“一种物理随机接入信道PRACH资源的处理方法及装置”以及于2019年2月14日提交中国专利局、申请号为201910114628.7、发明名称为“一种物理随机接入信道PRACH资源的处理方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种物理随机接入信道PRACH资源的处理方法及装置。
背景技术
随机接入在长期演进(long term evolution，LTE)系统起着重要作用，是用户设备进行初始连接、切换、连接重建立，重新恢复上行同步的唯一策略。随机接入过程和确定性的上下行调度不同之处在于其具有随机性。首先，用户设备(user equipment，UE)在随机时刻选择前导序列接入；其次接入的结果也具有随机性，并不能保证100％的成功。随机接入控制算法作用就是尽量保证随机接入成功性，把不确定性控制在可接受的范围。
现有方案中，考虑了物理随机接入信道(physical random access channel，PRACH)算法，该算法包括ZC根序列索引自动规划算法、PRACH配置索引自动规划算法。通过网络规划为多个小区自动分配合理的前导索引，保证高速、半径较大小区优先分配检测性能较好的前导序列，且相邻小区分配不同前导序列以降低干扰；通过网络规划为多个小区自动分配合理的PRACH配置索引，降低同基站小区间PRACH干扰，以及不同基站间相邻小区总干扰。
然而,现有方案无法解决在新无线接入技术(new radio，NR)系统下的PRACH资源干扰问题。
发明内容
本申请实施例提供了一种物理随机接入信道PRACH资源的处理方法及装置，用于解决新无线接入技术NR系统下的PRACH资源干扰问题。
本申请第一方面提供了一种物理随机接入信道PRACH资源的处理方法，包括：第一接入设备从第二接入设备接收第一信息，其中，该第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；第一接入设备根据所述第一信息进行处理。本申请实施例中，第一接入设备接收第二接入设备发送的第一信息，根据第一信息中携带的波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
在一种可能的设计中，在本申请实施例第一方面的第二种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。有效的避免常规上行载波的专用PRACH资源和/或补充上行载波的PRACH的专用资源出现冲突。
在一种可能的设计中，在本申请实施例第一方面的第三种实现方式中，第一信息还包括公共的PRACH资源信息，或，公共的PRACH资源信息和公共的PRACH资源的长短格式指示。追加了第一信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第一方面的第四种实现方式中，该PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第一方面的第五实现方式中，该方法还包括：第一接入设备向第二接入设备发送第一指示，该第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。增加了第一接入设备向第二接入设备发送第一指示的过程，以使得第二接入设备可以根据第一指示修改第二接入设备的PRACH资源信息，避免了第二接入设与第一接入设备的PRACH资源信息冲突。
在一种可能的设计中，在本申请实施例第一方面的第六种实现方式中，所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。明确了PRACH资源的冲突类型的具体情形，提高了本申请实施例中对第一指示的处理效率。
在一种可能的设计中，在本申请实施例第一方面的第七种实现方式中，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
在一种可能的设计中，在本申请实施例第一方面的第八种实现方式中，该第一指示还包括候选的PRACH资源。明确了第一指示携带候选的PRACH资源的情况，缩小了查找PRACH资源的范围，提高了PRACH资源协调的效率。
在一种可能的设计中，在本申请实施例第一方面的第九种实现方式中，所述第一接入设备为第一新无线接入技术NR基站，所述第二接入设备为第二NR基站；
或，所述第一接入设备为集中式单元CU，所述第二接入设备为分布式单元DU；或，所述第一接入设备为分布式单元DU，所述第二接入设备为集中式单元CU；
或，所述第一接入设备为NR基站，所述第二接入设备为长期演进LTE基站；
或，所述第一接入设备为LTE基站，所述第二接入设备为NR基站。
本申请第二方面提供了一种物理随机接入信道PRACH资源的处理方法，包括：第二接入设备确定第一信息,所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；所述第二接入设备向第一接入设备发送所述第一信息。本申请实施例中，第二接入设备向第一接入设备发送第一信息，该第一信息中携带有波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个，以使得第一接入设备进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
在一种可能的设计中，在本申请实施例第二方面的第一种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息，有效的避免常规上行载波的专用PRACH资源和/或补充上行载波的PRACH的专用资源中的至少一项出现冲突。
在一种可能的设计中，在本申请实施例第二方面的第二种实现方式中，该第一信息还包括公共的PRACH资源信息，或，公共的PRACH资源信息和公共的PRACH资源的长短格式指示。追加了第一信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第二方面的第三种实现方式中，该PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第二方面的第四种实现方式中，该方法还包括：该第二接入设备从该第一接入设备接收第一指示，该第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。增加了第二接入设备从第一接入设备接收第一指示的过程，以使得第二接入设备可以根据第一指示修改第二接入设备的PRACH资源信息，避免了第二接入设与第一接入设备的PRACH资源信息冲突。
在一种可能的设计中，在本申请实施例第二方面的第五种实现方式中，该PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。
在一种可能的设计中，在本申请实施例第二方面的第六种实现方式中，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
在一种可能的设计中，在本申请实施例第二方面的第七种实现方式中，该第一指示还包括候选的PRACH资源。明确了第一指示携带候选的PRACH资源的情况，缩小了查找PRACH资源的范围，提高了PRACH资源协调的效率。
在一种可能的设计中，在本申请实施例第二方面的第八种实现方式中，所述第一接入设备为第一新无线接入技术NR基站，所述第二接入设备为第二NR基站；
或，所述第一接入设备为集中式单元CU，所述第二接入设备为分布式单元DU；或，所述第一接入设备为分布式单元DU，所述第二接入设备为集中式单元CU；
或，所述第一接入设备为NR基站，所述第二接入设备为长期演进LTE基站；
或，所述第一接入设备为LTE基站，所述第二接入设备为NR基站。
本申请第三方面提供了一种物理随机接入信道PRACH资源的处理方法，包括：
第一接入设备获取第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；第一接入设备向所述第三接入设备发送所述第三信息。以使第三接入设备能够根据第三信息 进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第三方面的第二种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
在一种可能的设计中，在本申请实施例第三方面的第三种实现方式中，所述第三信息还包括公共的PRACH资源的长短格式指示。追加了第三信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第三方面的第四种实现方式中，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第三方面的第五种实现方式中，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
在一种可能的设计中，在本申请实施例第三方面的第六种实现方式中，该方法还包括,所述第一接入设备从相邻基站、第四接入设备以及第五接入设备下至少一个小区获取PRACH资源信息，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备；所述第一接入设备根据已获取的所述PRACH资源信息确定所述第三接入设备邻区的PRACH资源信息。以使第三接入设备能够根据所述第三接入设备邻区的PRACH资源信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第三方面的第七种实现方式中，该方法还包括，所述第一接入设备已获取的所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、所述第四接入设备以及所述第五接入设备下至少一个的小区的相邻程度。在所述PRACH资源信息包括至少一个相邻程度的情况下，则使得对物理随机接入信道PRACH资源进行优化更为准确，进一步的降低第一接入设备下小区之间的PRACH资源出现冲突的可能。
在一种可能的设计中，在本申请实施例第三方面的第八种实现方式中，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
本申请第四方面提供了一种物理随机接入信道PRACH资源的处理方法，包括：第三设备从第一接入设备接收第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个，所述第三接入设备根据所述第三信息进行处理。在第三接入设备根据第三信息进行处理的情况下，第三接入设备能够根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第四方面的第二种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
在一种可能的设计中，在本申请实施例第四方面的第三种实现方式中，所述第三信息还包括公共的PRACH资源的长短格式指示。追加了第三信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第四方面的第四种实现方式中，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第四方面的第五种实现方式中，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
在一种可能的设计中，在本申请实施例第四方面的第六种实现方式中，该方法还包括,所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、第四接入设备以及第五接入设备下至少一个的小区的相邻程度，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备。第三接入设备能够根据所述第三接入设备邻区的PRACH资源信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第四方面的第七种实现方式中，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
本申请第五方面提供了一种接入设备，该接入设备为第一接入设备，包括：接收模块，用于从第二接入设备接收第一信息，所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；处理模块，用于根据所述第一信息进行处理，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
在一种可能的设计中，在本申请实施例第五方面的第一种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息，避免了第一接入设备和第二接入设备的常规上行载波的专用PRACH资源和/或补充上行载波的PRACH的专用资源出现冲突。
在一种可能的设计中，在本申请实施例第五方面的第二种实现方式中，该第一信息还包括公共的PRACH资源信息，或，公共的PRACH资源信息和公共的PRACH资源的长短格式指示。追加了第一信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第五方面的第三种实现方式中，该PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协 调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第五方面的第四种实现方式中，该接入设备还包括：发送模块，用于向该第二接入设备发送第一指示，该第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。增加了第一接入设备向第二接入设备发送第一指示的过程，以使得第二接入设备可以根据第一指示修改第二接入设备的PRACH资源信息，避免了第二接入设与第一接入设备的PRACH资源信息冲突。
在一种可能的设计中，在本申请实施例第五方面的第五种实现方式中，所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。明确了PRACH资源的冲突类型的具体情形，提高了本申请实施例中对第一指示的处理效率。
在一种可能的设计中，在本申请实施例第五方面的第六种实现方式中，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突中的至少一种。明确了PRACH资源的冲突类型的具体情形，提高了本申请实施例中对第一指示的处理效率。
在一种可能的设计中，在本申请实施例第五方面的第八种实现方式中，该第一指示还包括候选的PRACH资源。明确了第一指示携带候选的PRACH资源的情况，缩小了查找PRACH资源的范围，提高了PRACH资源协调的效率。
在一种可能的设计中，在本申请实施例第五方面的第九种实现方式中，所述第一接入设备为第一新无线接入技术NR基站，所述第二接入设备为第二NR基站；或，所述第一接入设备为集中式单元CU，所述第二接入设备为分布式单元DU；或，所述第一接入设备为分布式单元DU，所述第二接入设备为集中式单元CU；或，所述第一接入设备为NR基站，所述第二接入设备为长期演进LTE基站；或，所述第一接入设备为LTE基站，所述第二接入设备为NR基站。
本申请第六方面提供了一种接入设备，该接入设备为第二接入设备，包括：确定模块，用于确定第一信息,所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；发送模块，用于向第一接入设备发送所述第一信息，以使得第一接入设备进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源、以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
在一种可能的设计中，在本申请实施例第六方面的第一种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息中的至少一个；避免了第一接入设备和第二接入设备的常规上行载波的专用PRACH资源和/或补充上行载波的PRACH的专用资源出现冲突。
在一种可能的设计中，在本申请实施例第六方面的第二种实现方式中，该第一信息还包括公共的PRACH资源信息，或，公共的PRACH资源信息和公共的PRACH资源的长短格式指示。追加了第一信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效 率。
在一种可能的设计中，在本申请实施例第六方面的第三种实现方式中，该PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第六方面的第四种实现方式中，该接入设备还包括：接收模块，用于从该第一接入设备接收第一指示，该第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。增加了第二接入设备从第一接入设备接收第一指示的过程，以使得第二接入设备可以根据第一指示修改第二接入设备的PRACH资源信息，避免了第二接入设与第一接入设备的PRACH资源信息冲突。
在一种可能的设计中，在本申请实施例第六方面的第五种实现方式中，所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。明确了PRACH资源的冲突类型的具体情形，提高了本申请实施例中对第一指示的处理效率。
在一种可能的设计中，在本申请实施例第六方面的第六种实现方式中，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
在一种可能的设计中，在本申请实施例第六方面的第七种实现方式中，该第一指示还包括候选的PRACH资源。明确了第一指示携带候选的PRACH资源的情况，缩小了查找PRACH资源的范围，提高了PRACH资源协调的效率。
在一种可能的设计中，在本申请实施例第六方面的第八种实现方式中，所述第一接入设备为第一新无线接入技术NR基站，所述第二接入设备为第二NR基站；或，所述第一接入设备为集中式单元CU，所述第二接入设备为分布式单元DU；或，所述第一接入设备为分布式单元DU，所述第二接入设备为集中式单元CU；或，所述第一接入设备为NR基站，所述第二接入设备为长期演进LTE基站；或，所述第一接入设备为LTE基站，所述第二接入设备为NR基站。
本申请第七方面提供了一种接入设备，所述接入设备为第一接入设备，包括：
获取模块，用于获取第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；发送模块，用于设备向所述第三接入设备发送所述第三信息。以使第三接入设备能够根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第七方面的第二种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息中的至少一个；避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第七方面的第三种实现方式中，所述第三信息还包括公共的PRACH资源的长短格式指示。追加了第三信息中可以携带公共的PRACH资源信息 或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第七方面的第四种实现方式中，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第七方面的第五种实现方式中，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
在一种可能的设计中，在本申请实施例第七方面的第六种实现方式中，所述获取模块包括，第一获取子模块，用于从相邻基站、第四接入设备以及第五接入设备下至少一个小区获取PRACH资源信息，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备；第二获取子模块，用于根据已获取的所述PRACH资源信息确定所述第三接入设备邻区的PRACH资源信息。以使第三接入设备能够根据所述第三接入设备邻区的PRACH资源信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第七方面的第七种实现方式中，所述第一获取子模块已获取的所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、所述第四接入设备以及所述第五接入设备下至少一个的小区的相邻程度。在所述PRACH资源信息包括至少一个相邻程度的情况下，则使得对物理随机接入信道PRACH资源配置进行优化更为准确，进一步的降低第一接入设备下小区之间的PRACH资源出现冲突的可能。
在一种可能的设计中，在本申请实施例第三方面的第八种实现方式中，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
本申请第八方面提供了一种接入设备，所述接入设备为第三接入设备，包括：接收模块，用于从第一接入设备接收第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；处理模块，用于根据所述第三信息进行处理。第三接入设备能够根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第八方面的第二种实现方式中，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
在一种可能的设计中，在本申请实施例第八方面的第三种实现方式中，所述第三信息还包括公共的PRACH资源的长短格式指示。追加了第三信息中可以携带公共的PRACH资源信息或公共的PRACH资源的长短格式指示的情形，为本申请实施例实现初始接入网络的过程提供了必要条件，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第八方面的第四种实现方式中，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一 个。对PRACH资源信息进行了具体细化，以使得本申请实施例可以针对特定的PRACH资源进行协调，提高了PRACH资源的协调效率。
在一种可能的设计中，在本申请实施例第八方面的第五种实现方式中，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
在一种可能的设计中，在本申请实施例第八方面的第六种实现方式中，所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、第四接入设备以及第五接入设备下至少一个的小区的相邻程度，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备。第三接入设备能够根据所述第三接入设备邻区的PRACH资源信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
在一种可能的设计中，在本申请实施例第八方面的第七种实现方式中，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
本申请第九方面提供了一种接入设备，包括：存储器、处理器以及总线系统；其中，所述存储器用于存储程序；所述处理器用于执行所述存储器中的程序，用于执行上述各方面所述的方法。
本申请的第十方面提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
本申请的第十一方面提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
本申请第十二方面提供了一种通信系统，包括第五方面提供的第一接入设备以及第六方面提供的第二接入设备。
本申请第十三方面提供了一种通信系统，包括第七方面提供的第一接入设备以及第八方面提供的第三接入设备。
附图说明
图1为本申请实施例的一个网络架构示意图；
图2为本申请实施例中物理随机接入信道PRACH资源的处理方法的一个实施例示意图；
图3为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图4为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图5为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图6为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图7为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图8为本申请实施例的应用的其他网络架构的示意图；
图9为本申请实施例中接入设备的一个实施例示意图；
图10为本申请实施例中接入设备的另一实施例示意图；
图11为本申请实施例中接入设备的另一个实施例示意图；
图12A为本申请实施例中接入设备的另一个实施例示意图；
图12B为本申请实施例中接入设备的另一个实施例示意图；
图13为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图14为本申请实施例中物理随机接入信道PRACH资源的处理方法的另一实施例示意图；
图15为本申请实施例中接入设备的另一个实施例示意图；
图16为本申请实施例中接入设备的另一个实施例示意图。
具体实施方式
本申请实施例提供了一种PRACH资源的处理方法及装置，用于解决新无线接入技术NR系统下的物理随机接入信道PRACH资源干扰问题。
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例进行描述。
本申请文件中提及的“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”或“具有”及其任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或模块的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。
现有方案中，随机接入过程的随机接入通道(random access channel，RACH)资源选择，用户设备(user equipment，UE)需要选择传输随机前导序列的物理随机接入信道(physical random access channel，PRACH)，或使用基站告知的PRACH传输专用前导序列，而小区每帧中可用的PRACH是由小区配置的PRACH配置(configuration)决定。该算法目的是为小区分配合理的PRACH配置索引(configuration Index)，降低基站内小区PRACH干扰，同时降低基站间总干扰，例如，PRACH间干扰、物理上行共享信道(physical uplink shared channel，PUSCH)对PRACH的干扰等。
由于新无线接入技术(new radio，NR)中引入了长短格式的前导码序列，而且NR中大多是高频小区，因此大多使用短序列，因此前导序列冲突可能会会更大。除此之外，NR系统由于引入了波束的概念，随机接入过程中涉及到如何选择波束的问题。
在本申请各个实施例中，波束(beam)：可以理解为空间资源，可以指具有能量传输指向性的发送或接收预编码向量。并且，该发送或接收预编码向量能够通过索引信息进行标识，所述索引信息可以对应配置终端的资源标识(identity，ID)，比如，所述索引信息可以对应配置的CSI-RS的标识或者资源；也可以是对应配置的上行探测参考信号(sounding reference signal，SRS)的标识或者资源。可选地，所述索引信息也可以是通过波束承载的信号或信道显示或隐式承载的索引信息。所述能量传输指向性可以指通过该预编码向量对所需发送的信号进行预编码处理，经过该预编码处理的信号具有一定的空间指向性，接收经过该预编码向量进行预编码处理后的信号具有较好的接收功率，如满足接收解调信噪比等；所述能量传输指向性也可以指通过该预编码向量接收来自不同空间位置发送的相同信号具有不同的接收功率。可选地，同一通信装置(比如终端设备或网络设备)可以有不同的预编码向量，不同的设备也可以有不同的预编码向量，即对应不同的波束。针对通信装置的配置或者 能力，一个通信装置在同一时刻可以使用多个不同的预编码向量中的一个或者多个，即同时可以形成一个波束或者多个波束。在本申请中，网络设备向终端设备发送的波束被称为下行波束，终端设备向网络设备发送的波束被称为上行波束。波束的配置可以通过RRC来配置，SSB是通过广播消息发送给UE的，CSI-RS可以通过无线资源控制(radio resource control，RRC)专有信令配置给UE的。其中，SSB和CSI-RS分别会配置两个门限值(rsrp-ThresholdSSB，csirs-Threshold)，两个门限值用于UE选择波束，网络侧可以为UE配置基于SSB或者CSI-RS的测量信息，UE测量SSB的参考信号接收功(synchronization signal block reference signal received power，SSB-RSRP)或者CSI的参考信号接收功(channel state information reference signal received power，CSI-RSRP)。当UE的SSB-RSRP信号质量超过SSB的RSRP门限值时，UE就选择对应的SSB下的前导序列(preamble)进行随机接入。
在本申请各个实施例中，补充上行载波是NR系统下引入的一个新的定义，即一个小区可以具有至少一个下行载波和至少一个上行载波，如，一个小区可以具有一个下行载波和两个上行载波，本申请对小区所具有的下行载波和下行载波个数的说明为可选的说明，具体不做限定。UE可以选择任意上行载波进行数据传输。上行载波可以包括常规的上行(Uplink，UL)载波和补充上行(supplementary uplink，SUL)载波，当终端设备初始随机接入时，终端设备可以根据所测量到的SUL的参考信号强度与一个SUL的参考信号接收功率门限(比如具体为rsrpthresholdSUL)相比，从而决定选择常规的UL载波还是SUL载波，示例性的，SUL的参考信号接收功率门限可以是无线接入网设备通过RRC信令配置给终端设备，例如无线接入网设备通过广播信息发送rsrpthresholdSUL给终端设备的，用于终端设备初始随机接入时选择SUL或者UL；或者，当终端设备在切换场景下时，无线接入网设备可以通过专有信令指示终端设备使用UL或者SUL，还是同时使用UL和SUL。本申请中的上行载波可以包括常规上行载波和/或补充上行载波。
在NR系统下，如果继承现有的方案，将无法解决在NR系统下引入长短格式、波束恢复(beam failure recovery，BFR)专用PRACH资源以及上行载波专用的PRACH资源等问题，以及应用在集中式单元-分布式单元(central unit-distributed unit，CU-DU)场景、LTE和NR的多链接(E-UTRA-NR dual connectivity，EN-DC)等场景下的PRACH资源协调问题。
本申请实施例可应用于NR系统单独部署基站(standalone，SA)的场景、NR的CU-DU场景、EN-DC场景，以及多RAT下的多链接(Multi-RAT dual connectivity，MR-DC)场景等。例如，如图1所示的CU-DU网络架构，该网络架构中，NR基站的集中式单元(gNB-CU)和NR基站的分布式单元(gNB-DU)之间通过F1接口连接，gNB之间通过Xn接口连接，gNB与NR的核心网(5G core network，5GC)之间通过NG接口连接。其中，CU和DU的一种可能的实现方式为按照协议栈功能划分，例如，CU具有分组数据汇聚协议(packet data convergence protocol，PDCP)层以上功能，具体包括业务数据适配层(service data adaptation protocol，SDAP)层功能、PDCP层功能、无线资源控制(radio resource control，RRC)功能和业务数据适应层(service data adaptation protocol，SDAP)功能；DU具有PDCP层以下功能，具体包括无线链路控制(radio link control，RLC)功能、媒体 访问控制(medium access control，MAC)MAC功能和物理层(physical layer，PHY)功能。
需要说明的是，本申请实施例还可以扩展到多跳中继场景，例如DU可以是中继设备，或者DU和UE之间通过中继设备传输的场景。本申请实施例还可以应用在其他多链接的数据传输的场景中，具体此处不做限定。
实施例一
为便于理解，下面对本申请实施例的具体流程进行描述，请参阅图2，本申请实施例中PRACH资源的处理方法的一个实施例包括：
201、第二接入设备向第一接入设备发送第一信息。
第一接入设备可以为第一无线接入网设备，第二接入设备可以为第二无线接入网设备，第一接入设备和第二接入设备之间存在连接。
本申请实施例中以第一接入设备、第二接入设备为例进行说明。第二接入设备向第一接入设备发送第一信息，其中，第一信息中包括波束恢复(beam failure recovery，BFR)的PRACH资源信息、按需系统信息(ondemand system information，OSI)的PRACH资源信息以及上行载波UL的PRACH资源信息中的一个或多个。
可选的，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息、补充上行载波的PRACH资源信息。
例如，第一信息可以单独包括BFR的PRACH资源信息，第一信息也可以单独包括OSI的PRACH资源信息，所述第一消息也可单独包括上行载波UL的PRACH资源信息，所述第一消息也可单独包括常规上行载波的PRACH资源信息，所述第一消息也可单独包括补充上行载波的PRACH资源信息；
又如，第一信息还可以同时包括BFR的PRACH资源信息、OSI的PRACH资源信息，上行载波的PRACH资源信息中的至少两个或两个以上。
可选的，BFR的PRACH资源可以看做是，BFR的专用PRACH，OSI的PRACH资源可以看做是OSI的专用PRACH，上行载波的PRACH资源可以看做是上行载波的专用PRACH资源，常规上行载波的PRACH资源可以看做是常规上行载波的专用PRACH资源，补充上行载波的PRACH资源可以看做是补充上行载波的专用PRACH资源。
本申请实施例中，PRACH资源信息也可以称为PRACH资源配置信息或PRACH资源配置或者其他术语，本申请在此不限定。
可选的，该第一信息还可以包括公共的(common)PRACH资源信息，或，同时包括公共的PRACH资源信息和公共的PRACH资源的长短格式指示。其中，所述公共的PRACH资源信息可以理解为第二接入设备或第二接入设备下各小区通用的PRACH资源信息,也即BFR或者OSI或者上行载波或者补充上行载波通用的PRACH资源信息；common PRACH资源用于UE初始接入网络的过程。
对于NR系统而言，BFR一般情况下为短格式，OSI的格式类似于公共的PRACH资源的长短格式，可以为长格式，也可以为短格式。可选的，所述PRACH资源信息包括根序列索引(RootSequenceIndex)、循环移位(ZeroCorrelationZoneConfiguration)、高速标识(HighSpeedFlag)、PRACH频率偏置(PRACH-FrequencyOffset)和PRACH配置索引(PRACH-ConfigurationIndex)中的至少一个。例如，PRACH资源信息中可以只包括根序列索引，或者 只包括循环移位，也可以同时包括根序列索引和循环移位，还可以同时包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引，第一信息只要携带上述参数中的至少一个即可，可以是其他不同的组合，例如，PRACH资源信息包括PRACH频率偏置和PRACH配置索引等，具体此处不做限定。上述PRACH资源信息中包括的各个参数，可以是起到相同作用的其他形式的参数，具体此处不做限定。
需要说明的是，BFR的PRACH资源信息、OSI的PRACH资源信息、上行载波UL的PRACH资源信息和common的PRACH资源信息可以相同，或者也可以不相同。下面以包括的参数不相同为例来举例，例如，第一信息中包括的BFR的PRACH资源信息包括BFR的根序列索引(RootSequenceIndex-BFR)、BFR的循环移位(ZeroCorrelationZoneConfiguration-BFR)、BFR的高速标识(HighSpeedFlag-BRF)、BFR的PRACH频率偏置(PRACH-FrequencyOffset-BFR)和BFR的PRACH配置索引(PRACH-ConfigurationIndex-BFR)中的至少一个。又例如，第一信息中包括的OSI的PRACH资源信息包括OSI的根序列索引(RootSequenceIndex-OSI)、OSI的循环移位(ZeroCorrelationZoneConfiguration-OSI)、OSI的高速标识(HighSpeedFlag-OSI)、OSI的PRACH频率偏置(PRACH-FrequencyOffset-OSI)和OSI的PRACH配置索引(PRACH-ConfigurationIndex-OSI)中的至少一个。又例如，第一信息中包括的上行载波UL的PRACH资源信息包括上行载波的根序列索引(RootSequenceIndex-uplink carrier)、上行载波的循环移位(ZeroCorrelationZoneConfiguration-uplink carrier)、上行载波的高速标识(HighSpeedFlag-uplink carrier)、上行载波的PRACH频率偏置(PRACH-FrequencyOffset-uplink carrier)和上行载波的PRACH配置索引(PRACH-ConfigurationIndex-uplink carrier)中的至少一个。又例如，第一信息中包括的常规上行载波的PRACH资源信息包括常规上行载波的根序列索引(RootSequenceIndex-normal uplink carrier)、常规上行载波的循环移位(ZeroCorrelationZoneConfiguration-normal uplink carrier)、常规上行载波的高速标识(HighSpeedFlag-normal uplink carrier)、常规上行载波的PRACH频率偏置(PRACH-FrequencyOffset-normal uplink carrier)和常规上行载波的PRACH配置索引(PRACH-ConfigurationIndex-normal uplink carrier)中的至少一个。又例如，第一信息中包括的补充上行载波的PRACH资源信息包括上行载波的根序列索引(RootSequenceIndex-supplementary uplink carrier)、补充上行载波的循环移位(ZeroCorrelationZoneConfiguration-supplementary uplink carrier)、补充上行载波的高速标识(HighSpeedFlag-supplementary uplink carrier)、补充上行载波的PRACH频率偏置(PRACH-FrequencyOffset-supplementary uplink carrier)和补充上行载波的PRACH配置索引(PRACH-ConfigurationIndex-supplementary uplink carrier)中的至少一个。
可选的，所述BFR的PRACH资源信息、OSI的PRACH资源信息、上行载波UL的PRACH资源信息和common的PRACH资源信息可以是一个候选资源列表，本申请在此不限定。
一种可能的方式中，第一接入设备和第二接入设备使用的PRACH资源可以通过网络管理器来配置，或者通过其他集中节点来配置，具体此处不做限定。
可以理解的是，BFR的PRACH资源信息中涉及的PRACH资源可以看做是BFR的专用资源，OSI的PRACH资源信息中涉及的PRACH资源可以看做是OSI的专用资源。上行载波UL的 PRACH资源信息中涉及的PRACH资源可以看做是上行载波的专用资源。
需要说明的是，一般来说，OSI的RootSequenceIndex与common的RootSequenceIndex配置相同。
可选的，所述第一信息可以是携带在第一接入设备和第二接入设备之间的接口消息中发送，所述接口消息可以是NR的Xn接口消息，其中，Xn的接口消息可以是现有的Xn接口消息，包括用户设备的关联(UE-associated)信令消息以及用户设备的非关联(non UE-associated)消息，也可以是新定义的Xn接口消息，本申请在此不限定。例如，通过Xn建立请求消息响应消息或者Xn建立请求消息或者基站配置更新消息或者基站配置更新响应消息中，如，包括在所述消息中的小区信息中。可选的，当所述第一信息分别是BFR的PRACH资源、OSI的PRACH资源，上行载波UL的PRACH资源信息和common的PRACH资源的任一一种时，所述BFR的PRACH资源、OSI的PRACH资源、上行载波UL的PRACH资源信息和common的PRACH资源可以分别通过不同的Xn接口消息传输。
202、第一接入设备根据第一信息进行处理。
其中，第一接入设备根据第一信息处理可能有多种不同的实现方式，例如，第一接入设备(即第一无线接入网设备)可以使用第一信息进行随机接入信道RACH的优化，或者，第一接入设备还可以使用第一信息进行RACH的协调，或者，第一接入设备还可以使用第一信息进行RACH的重配置等。具体的，所述第一接入设备使用所述第一信息进行随机接入信道RACH的优化可以是进行PRACH资源配置的优化。
其中，第一接入设备使用所述第一信息进行PRACH资源配置的优化可以包括：第一接入设备判断第一接入设备的PRACH资源配置与第二接入设备的PRACH资源配置是否冲突；若第一接入设备的PRACH资源与第二接入设备的PRACH资源冲突，则第一接入设备可以将第一接入设备的PRACH资源配置修改为新的PRACH资源配置，或者，第一接入设备可以将第二接入设备的PRACH资源配置修改为新的PRACH资源配置，并发送所述新的PRACH资源配置给第二接入设备，其中，新的PRACH资源配置与第二接入设备的PRACH资源配置不冲突；或者，第一接入设备向第二接入设备发送第一信息以指示第二接入设备将第二接入设备的PRACH资源配置修改为新的PRACH资源配置，其中，新的PRACH资源配置与第一接入设备的PRACH资源配置不冲突。
需要说明的是，所述PRACH资源冲突是指所述根序列索引(RootSequenceIndex)、循环移位(ZeroCorrelationZoneConfiguration)、高速标识(HighSpeedFlag)、PRACH频率偏置(PRACH-FrequencyOffset)和PRACH配置索引(PRACH-ConfigurationIndex)中的至少一个或者是多个参数配置得相同。例如，若第一接入设备的高速标识和第二接入设备的高速标识相同，则可以确定第一接入设备和第二接入设备的PRACH资源冲突。又例如，若第一接入设备的高速标识与第二接入设备的高速标识相同，且第一接入设备的循环移位与第二接入设备的循环移位相同，即高速标识和循环移位两个参数配置得相同，则确定第一接入设备和第二接入设备的PRACH资源冲突。
可选的，BFR的PRACH资源冲突是指所述BFR的根序列索引(RootSequenceIndex-BFR)、BFR的循环移位(ZeroCorrelationZoneConfiguration-BFR)、BFR的高速标识(HighSpeedFlag-BRF)、BFR的PRACH频率偏置(PRACH-FrequencyOffset-BFR)和BFR的 PRACH配置索引(PRACH-ConfigurationIndex-BFR)的至少一个或者是多个参数配置得相同。
可选的，OSI的PRACH资源冲突是指所述OSI的根序列索引(RootSequenceIndex-OSI)、OSI的循环移位(ZeroCorrelationZoneConfiguration-OSI)、OSI的高速标识(HighSpeedFlag-OSI)、OSI的PRACH频率偏置(PRACH-FrequencyOffset-OSI)和OSI的PRACH配置索引(PRACH-ConfigurationIndex-OSI)中的至少一个或者多个参数配置得相同。
可选的，常规的上行载波的PRACH资源冲突是指所述常规的上行载波的根序列索引、常规的上行载波的循环移位、常规的上行载波的高速标识、常规的上行载波的PRACH频率偏置和常规的上行载波的PRACH配置索引的至少一个或者是多个参数配置得相同。
可选的，补充的上行载波的PRACH资源冲突是指所述补充的上行载波的根序列索引、补充的上行载波的循环移位、补充的上行载波的高速标识、补充的上行载波的PRACH频率偏置和补充的上行载波的PRACH配置索引的至少一个或者是多个参数配置得相同。
需要说明的是，本申请中所描述的PRACH资源冲突也可以叫做PRACH资源重叠，或者其他名称，其含义是说明PRACH资源配置不合理，本申请实施例在此不限定。
可选的，如果是第一接入设备修改PRACH资源配置，那么第一接入设备可以把修改后的新的PRACH资源配置发送给第二接入设备。
或者，如果是第二接入设备修改PRACH资源配置，那么还可以执行如下步骤203和步骤204。
又如，第一接入设备可获取相邻小区的PRACH资源信息和/或相邻程度，以使第一接入设备根据相邻小区的PRACH资源信息以及相邻程度的指示进行优化PRACH资源配置，或第一接入设备可将相邻小区的PRACH资源信息以及相邻程度的指示发送给OAM，由OAM进行优化PRACH资源配置，具体的，相邻程度可以是直接相邻、间接相邻、特定距离中的一个或多个，相邻程度可以用0/1/2等来标识(0代表直接相邻，1代表间接相邻，2代表特定距离)，或者相邻程度还可以用其他来表征，本申请在此不限定。
203、第一接入设备向第二接入设备发送第一指示，该第一指示用于指示第二接入设备进行随机接入信道RACH的优化。
一种可能的方式中，所述第一指示中包括PRACH资源冲突的指示(或者是PRACH资源配置优化的指示)、PRACH资源的冲突类型(或者是PRACH资源配置的优化类型)、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。
可选的，所述第一指示可以通过第一接入设备和第二接入设备的接口消息中发送，所述接口消息可以是现有的Xn接口消息，也可以是新的Xn接口消息，例如PRACH优化请求消息，本申请在此不限定。
可以理解的，当第一接入设备使用接收到的第一信息判断随机接入信道RACH的优化是否需要优化，具体的，本申请所示的随机接入信道RACH的优化可以为PRACH资源配置的优化，如果第一接入设备认为第二接入设备需要优化PRACH资源配置，则第一接入设备向第二接入设备发送第一指示。
可选的，所述第一指示中包括PRACH资源冲突的指示，所述PRACH资源冲突的指示用于指示第一接入设备的PRACH资源与第二接入设备的PRACH资源冲突。
可选的，所述第一指示中可以包括PRACH资源的冲突类型，所述PRACH资源的冲突类型 包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突、上行载波的PRACH资源冲突、常规上行载波的PRACH资源冲突以及补充上行载波的PRACH资源冲突中的至少一种。例如，若第一指示中包括BFR的PRACH资源冲突，则第二接入设备在接收到第一指示后，需要对第二接入设备的BFR的PRACH资源配置进行优化。
可选的，第一指示中可以包括PRACH资源的长短格式指示，所述PRACH资源的长短格式指示用于指示所冲突的PRACH资源是长格式还是短格式，可选的，可以包括所述BFR的PRACH资源、OSI的PRACH资源、上行载波的PRACH资源冲突、常规上行载波的PRACH资源冲突、补充上行载波的PRACH资源以及Common的PRACH资源的长短格式指示。
可选的，第一指示中可以包括PRACH资源的候选资源列表，该列表包括第二接入设备所使用的候选的PRACH资源，以使得第二接入设备在候选的PRACH资源中选择合适的PRACH资源，避免PRACH资源冲突。
204、第二接入设备根据第一指示进行处理。
一种可能的方式中,若第一指示中包括PRACH资源冲突的指示，则第二接入设备根据第一指示修改PRACH资源。若第一指示中包括PRACH资源的冲突类型，则第二接入设备根据所述第一指示修改相应类型的PRACH资源。若第一指示中包括PRACH资源的长短格式指示，则第二接入设备根据所述长短格式指示进行修改相应的RPACH资源源。若第一指示中包括PRACH资源的候选资源列表，则第二接入设备根据所述第一指示在所述候选资源列表中选择合适的PRACH资源作为新的PRACH资源配置。
可选的，第二接入设备发送修改后的新的PRACH资源配置给第一接入设备。可选的，所述修改后的新的PRACH资源配置可以通过第一接入设备和第二接入设备的接口消息中发送，所述接口消息可以是现有的Xn接口消息，也可以是新的Xn接口消息，例如PRACH优化请求响应消息，本申请在此不限定。
可选的，一种可能的方式中，所述第一指示中包括的PRACH资源的候选资源列表中可以只携带有一个特定的PRACH资源，即指示第二接入设备将当前正在使用的PRACH资源修改为所述特定的PRACH资源。
可选的，所述第一接入设备也可发送第一指示发送给OAM，所述第一指示用于指示PRACH资源冲突，OAM根据所述第一指示进行处理，即OAM进行PRACH资源配置的优化，OAM根据第一指示进行处理的具体过程可参见第二接入设备根据第一指示进行处理的过程，具体不做赘述，例如，若OAM根据第一指示修改PRACH资源，则OAM将修改后新的PRACH资源发送给第一接入设备。
还可选的，所述第二接入设备也可将所述第一指示发送给OAM，由OAM根据所述第一指示进行处理，OAM根据第一指示进行处理的具体过程可参见上述所示的第二接入设备根据第一指示进行处理的过程，具体不做赘述，例如，若OAM根据第一指示修改PRACH资源，则OAM将修改后新的PRACH资源发送给第二接入设备。
本申请实施例中，第一接入设备接收第二接入设备发送的第一信息，其中，第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息的至少一个，并根据第一信息进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL 的专用PRACH资源中的至少一项出现冲突。
实施例二
为了便于理解，下面以具体的应用场景为例进行说明。第一接入设备为第一基站，第二接入设备为第二基站，请参阅图3，本申请实施例中PRACH资源的处理方法的另一实施例包括：
301、第二基站向第一基站发送第一信息。
此处，第二接入设备向第一接入设备发送第一信息的具体过程以及第一信息的内容可以参照上述实施例一的步骤201，此处不再赘述。
例如，上述PRACH资源信息通过Xn接口消息传递的信元格式如下表所示：
表1中，公共的PRACH资源Rootsequenceindex与BFR的PRACH资源Rootsequenceindex-BFR单独排列，或者，如表2所示，公共的PRACH资源Rootsequenceindex与BFR的PRACH资源Rootsequenceindex-BFR都排列在RootSequenceIndexlist的下一级属性中。同理，公共的PRACH资源Rootsequenceindex、BFR的PRACH资源Rootsequenceindex-BFRBFR与OSI的PRACH资源Rootsequenceindex-OSI可以都排列在RootSequenceIndexlist的下一级属性中。
需要说明的是，表1中以包括common和BFR的PRACH资源配置信息为示例性说明，列表中还可以包括OSI的PRACH资源信息，具体此处不做限定。
表1
信息元素(IE)/组名称(Group Name)
RootSequenceIndex
Rootsequenceindex-BFR
ZeroCorrelationZoneConfiguration
ZeroCorrelationZoneConfiguration-BFR
HighSpeedFlag
HighSpeedFlag-BFR
PRACH-FrequencyOffset
PRACH-FrequencyOffset-BFR
PRACH-ConfigurationIndex
PRACH-ConfigurationIndex-BFR
表2
信息元素(IE)/组名称(Group Name)
RootSequenceIndexlist
>Rootsequenceindex
>Rootsequenceindex-BFR
ZeroCorrelationZoneConfiguration
>ZeroCorrelationZoneConfiguration
>ZeroCorrelationZoneConfiguration-BFR
HighSpeedFlag
>HighSpeedFlag
>HighSpeedFlag-BFR
PRACH-FrequencyOffset
>PRACH-FrequencyOffset
>PRACH-FrequencyOffset-BFR
PRACH-ConfigurationIndex
>PRACH-ConfigurationIndex
>PRACH-ConfigurationIndex-BFR
需要说明的是，表2中仅为示例性说明，列表中还可以包括OSI的PRACH资源配置信息和/或上行载波UL的PRACH资源信息，其中，上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息，上述信元可以是可选的，也可以是必选的，具体此处不做限定。
上述表格中的信元(参数)可以具体是某个小区的，因此对应的还存在小区标识等信息。例如，上述信元可以包括在基站的小区信息中，也可以是独立的信元。上述信元还可以分别通过non UE-associated信令消息中传输或者通过UE-associated信令消息中传输，本申请实施例不做限定。上述表格中还可以包括PRACH资源的长短格式的指示，具体此处不再赘述。需要说明的是，其中，BFR的PRACH资源可以在用户设备专用(UE specific)的消息中交互，例如，BFR的PRACH资源在切换(handover，HO)消息中交互等。
可选的，第一基站和第二基站之间通过Xn接口进行消息的交互，其中，Xn的接口消息可以是现有的Xn接口消息，包括用户设备的关联(UE-associated)信令消息以及用户设备的非关联(non UE-associated)消息，也可以是新定义的Xn接口消息，本申请在此不限定。例如，BFR的PRACH资源可以在UE specific的消息中交互，如切换消息等。
302、第一基站根据第一信息进行处理。
第一基站使用接收到的第一信息进行随机接入信道RACH的优化。具体的，本申请所示的随机接入信道RACH的优化可为PRACH资源的优化，更具体的，第一基站根据第二基站发送的 第一信息对PRACH资源配置进行优化。第一基站判断第一基站的第一PRACH资源配置与第二基站的第二PRACH资源配置是否冲突；若第一基站的第一PRACH资源与第二基站的第二PRACH资源冲突，则第一基站可以将第一基站的第一PRACH资源配置修改为新的PRACH资源配置，即第一优化的PRACH资源配置，其中，第一优化的PRACH资源配置与第二基站的第二PRACH资源配置不冲突；或者，第一基站指示第二基站将第二基站的第二PRACH资源配置修改为新的PRACH资源配置，即第二优化的PRACH资源配置，其中，第二优化的PRACH资源配置与第一基站的第一PRACH资源配置不冲突。若第一基站对本身的第一PRACH资源配置进行修改，则优化过程结束，具体过程参照上述实施例一的步骤202，此处不再赘述；
可选的，若第一基站不对本身的第一PRACH资源配置进行修改，则第一基站可执行如下过程：
例如，第一基站可以向OAM发送第一指示，由OAM根据第一指示进行随机接入信道RACH的优化；
又如，第一基站向第二基站发送第一指示，第二基站接收到第一指示后，第二基站将第一指示发送给OAM，即可由OAM根据第一指示为第二基站进行随机接入信道RACH的优化，其中，优化PRACH资源配置的具体过程可参见下述步骤303至步骤304所示，具体在此处不做赘述；
又如，第一基站可获取相邻小区的PRACH资源信息和/或相邻程度，以使第一基站根据相邻小区的PRACH资源信息以及相邻程度的指示进行优化PRACH资源配置，或第一基站可将相邻小区的PRACH资源信息以及相邻程度的指示发送给OAM，由OAM进行优化PRACH资源配置，具体的，相邻程度可以是直接相邻、间接相邻、特定距离中的一个或多个，相邻程度可以用0/1/2等来标识(0代表直接相邻，1代表间接相邻，2代表特定距离)，或者相邻程度还可以用其他来表征，本申请在此不限定。
又如，第一基站可以执行如下步骤303和步骤304所示的过程，具体如下所示；
303、第一基站向第二基站发送第一指示，该第一指示用于指示第二基站进行随机接入信道RACH优化的资源。
第一基站向第二基站发送第一指示，该第一指示用于指示第二基站进行随机接入信道RACH优化的PRACH资源。其中，第一指示中可以包括PRACH资源冲突的指示。当第一基站根据接收到的第一信息中携带的第二基站的第二PRACH资源配置，得到PRACH资源冲突的结果，则第一基站需要向第二基站发送第一指示，该第一指示中包括PRACH资源冲突的指示，PRACH资源冲突的指示用于指示第一基站的第一PRACH资源与第二基站的第二PRACH资源冲突。
可以理解的是，第一指示中还可以包括PRACH资源的冲突类型，PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突、上行载波的PRACH资源冲突、常规上行载波的PRACH资源冲突和补充上行载波的PRACH资源冲突中的至少一种。例如，若第一指示中包括BFR的PRACH资源冲突，则第二基站在接收到第一指示后，需要对第二基站在的BFR的PRACH资源配置进行修改。第一指示中还可以包括PRACH资源的长短格式指示、PRACH资源的候选资源列表等，具体过程参照上述实施例一的步骤203，此处不再赘述。
304、第二基站根据第一指示进行处理。
一种可能的方式中,第二基站根据第一指示对本身的PRACH资源进行修改。若第一指示中携带有候选资源列表，则第二基站可以直接在候选资源列表中选择合适的PRACH资源作为新的PRACH资源配置。具体过程参照上述实施例一的步骤204，此处不再赘述。
需要说明的是，第二基站修改完第二基站的第二PRACH资源配置后，还可以将修改结果发送给第一基站。
需要说明的是，本实施例描述的PRACH资源信息可以是指基站下各个小区的PRACH资源信息。
本申请实施例中，第一基站接收第二基站发送的第一信息，其中，第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波的PRACH资源信息中的至少一个，并使用第一信息进行随机接入信道RACH的优化，避免了第一基站和第二基站BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
实施例三
在NR的CU-DU架构下，即第一接入设备为gNB-CU，简单称之为CU，第二接入设备为gNB-DU，简单称之为DU，当一个CU下支持多个DU时，即Intra CU场景，本申请实施例以一个CU包括两个DU(DU1和DU2)为例进行说明，请参阅图4，本申请实施例中PRACH资源的处理方法的另一实施例包括：
401、DU1向CU发送第一信息。
DU1向CU发送第一信息，其中，第一信息中包括公共PRACH资源信息、BFR的PRACH资源信息、OSI的PRACH资源信息以及上行载波的PRACH资源信息中的至少一个。所述上行载波的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。所述公共的PRACH资源信息可以理解为DU1下各小区通用的PRACH资源信息。
需要说明的是，所述第一信息可以是携带在CU和DU之间的接口消息中发送，所述接口消息可以是F1接口消息，其中，F1接口消息可以是现有的F1接口消息，包括UE-associated信令消息以及non UE-associated消息，也可以是新定义的F1接口消息，本申请实施例在此不限定。例如，通过F1建立请求消息响应消息或者F1建立请求消息或者基站配置更新消息或者基站配置更新响应消息中，如，包括在所述消息中的小区信息中。
DU1向CU发送的第一信息的内容以及过程与步骤201类似，此处不再赘述。
402、DU2向CU发送第二信息。
DU2向CU发送第二信息。其中，DU2发送的第二信息中携带的参数与DU1发送的第一信息中携带的参数相同，例如，当DU1发送的第一信息中包括DU1的BFR的PRACH资源信息时，那么DU2发送的第二信息中也包括DU2的BFR的PRACH资源信息。
DU2向CU发送第二信息的内容以及过程与步骤201类似，此处不再赘述。
可以理解的，本申请中的DU2发送的第二信息与DU1发送的第一信息的格式相同，例如，DU1发送的第一信息指示BFR的PRACH资源，DU2发送的第二信息指示BFR的PRACH资源，那么可以认为第一信息和第二信息都是指示BFR的PRACH资源，即要发送相同类型的信息，那么为了便于CU识别，指示BFR的资源的格式是相同的，即格式相同。此处的第一信息和第二 信息只是为了区分信息的发送方是DU1还是DU2，第一信息表示发送方为DU1，第二信息表示发送方为DU2。
需要说明的是，步骤401和步骤402之间没有特定的顺序，可以同时执行，也可以依次执行，例如，先执行步骤401，再执行步骤402；或者先执行步骤402，再执行步骤401；或者同时执行步骤401和步骤402，具体此处不做限定。
403、CU根据第一信息和第二信息进行处理。
具体的，CU使用第一信息和第二信息进行随机接入信道RACH的优化，可以理解的，所述CU使用所述第一信息和第二信息对DU1和DU2的进行随机接入信道RACH的优化具体可为对DU1和DU2的PRACH资源配置进行优化。
例如，CU可以综合第一信息和第二信息，然后分别对DU1和DU2的PRACH资源的进行随机接入信道RACH的优化。
又如，CU可获取相邻小区的PRACH资源信息和/或相邻程度，以使CU根据相邻小区的PRACH资源信息以及相邻程度的指示进行优化PRACH资源配置，或CU可将相邻小区的PRACH资源信息以及相邻程度的指示发送给OAM，由OAM进行优化PRACH资源配置，具体的，相邻程度可以是直接相邻、间接相邻、特定距离中的一个或多个，相邻程度可以用0/1/2等来标识(0代表直接相邻，1代表间接相邻，2代表特定距离)，或者相邻程度还可以用其他来表征，本申请在此不限定。
404、CU向DU1或DU2发送第一指示，该第一指示用于指示DU1或DU2进行随机接入信道RACH的优化。
具体的，第一指示中可以包括PRACH资源的冲突类型，所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。其中，上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
例如，若第一指示中包括BFR的PRACH资源冲突，则CU可将包括有BFR的PRACH资源冲突的第一指示发送给DU1，DU1在接收到第一指示后，需要对DU1的BFR的PRACH资源配置进行优化。
例如，若CU发现了DU1和DU2的PRACH资源冲突，那么CU决策修改哪一个DU的PRACH资源，如，选择DU2修改PRACH资源，则CU向DU2发送第一指示，DU2在接收到第一指示后修改DU2的PRACH资源配置。具体的第一指示的内容与发送过程与上述实施例步骤203类似，此处不再赘述。
可选的，当CU下服务的DU的数量为多个(即三个或超过三个)时，如果CU发现多个DU之间的PRACH资源冲突，例如，若CU服务4个DU中，其中DU1，DU2和DU3的PRACH资源发生冲突，那么CU可以为其中发生冲突的2个DU(如DU1和DU2)分配不冲突的PRACH资源，CU分别发送不冲突的PRACH资源给DU1和DU2。
可选的，CU可以不向DU1或DU2发送第一指示，可以理解的，CU不进行随机接入信道RACH的优化，而是CU向OAM发送第一指示，由OAM来进行随机接入信道RACH的优化，即进行PRACH资源配置的优化：
例如，CU可以向OAM发送第一指示，由OAM根据第一指示进行随机接入信道RACH的优 化。
需要说明的是，上述描述的各个DU的PRACH资源，可以指的是DU下某个小区的PRACH资源。其中，common的PRACH资源可以通过F1建立以及配置更新消息进行交互与冲突指示，BFR的PRACH资源可以在UE specific的消息进行交互与冲突指示，例如承载(bearer)建立消息等。
405、DU1或DU2根据第一指示进行处理。
此处的具体过程与上述实施例一中的步骤204类似，此处不再赘述。
本申请实施例中，CU接收DU1发送的第一信息和DU2发送的第二信息，其中，第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个，第二信息与第一信息相同，CU根据第一信息和第二进行随机接入信道RACH的优化，避免了CU和各个DU的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
可选的，DU1或DU2接收到第一指示后，由已接收到第一指示的DU(DU1或DU2)将该第一指示发送给OAM，由OAM进行随机接入信道RACH的优化，OAM进行随机接入信道RACH的优化属于具体实现，具体在本实施例中不做赘述。
还可选的，DU1或DU2接收到第一指示后，由已接收到第一指示的DU将用于指示OAM进行随机接入信道RACH的优化的信息发送给OAM，本实施例对该信息的具体格式不做限定，只要OAM根据该信息能够进行随机接入信道RACH的优化即可。
需要说明的是，本实施例描述的PRACH资源信息可以是指DU下各个小区的PRACH资源信息，或是指CU下各个小区的PRACH资源信息。
实施例四
当应用在其他场景中时，具体过程类似，在NR的CU-DU架构下，即第一接入设备为gNB-CU，简单称之为CU，第二接入设备为gNB-DU，简单称之为DU，当存在多个CU，且不同的CU都支持多个DU时，即Inter CU场景，下面以2个CU(源CU和目标CU)，源CU连接1个源DU，目标CU连接1个目标DU的情况进行举例说明。请参阅图5，本申请实施例中PRACH资源的处理方法的另一实施例包括：
场景1：源CU和目标CU之间先建立了连接，然后各个CU再增加各自的DU，即CU直接先建立Xn接口连接，CU和各自对应的DU之间后建立F1接口，具体包括：
501、源CU和目标CU之间通过Xn接口消息交互第一信息，源CU和目标CU根据第一信息进行处理。
具体的，所述源CU通过Xn接口消息发送源CU的PRACH资源信息给目标CU，目标CU通过Xn接口消息发送目标CU的PRACH资源信息给源CU，源CU或者目标CU使用所获取的PRACH资源信息对随机接入信道RACH的优化。所述通过Xn接口消息发送所述第一信息以及使用所述第一信息进行随机接入信道RACH的优化过程同实施例一步骤201和步骤202描述，这里不再赘述。
502、源CU向源DU发送第一指示，目标CU向目标DU发送第二指示，该第一指示用于指示源DU进行随机接入信道RACH的优化，该第二指示用于指示目标DU进行随机接入信道RACH的优化。
所述第一指示和所述第二指示的内容以及发送过程与实施例一的步骤203类似，此处不再赘述。所述第一还是和所述第二指示可以同时发送，也可以不同时发送，也可以只发送其中一个，本申请实施例在此不限定。
可以理解的，本申请中的源CU发送的第一指示与目标CU发送的第二指示的格式相同，此处的第一指示和第二指示只是为了区分信息的发送方是源CU还是目标CU，第一指示表示发送方为源CU，第二指示表示发送方为目标CU。
具体的，在本步骤前，所述源CU和所述源DU建立F1接口，所述目标CU与所述目标DU建立F1接口，所述第一指示和所述第二指示均是通过F1接口消息发送，所述F1接口消息可以是现有的F1接口消息，或者是新定义的F1接口消息，本申请在此不限定。
例如，所述源CU为所述源DU确定第一可用的PRACH资源，所述目标CU为所述目标DU确定第二可用的PRACH资源，所述第一可用的PRACH资源和第二可用的PRACH资源可以是特定的一个PRACH资源，或者也可以是一个PRACH资源候选列表，本申请在此不限定。可以理解的是，源CU和目标CU分别建立各自的F1接口的过程可以同时进行，也可以依次进行，例如，先建立源CU的F1接口，后建立目标CU的F1接口，或者，先建立目标CU的F1接口，后建立源CU的F1接口，或者，也可以同时建立，此处不做限定。
503、源DU和目标DU分别根据第一指示和第二指示进行处理。
所述处理过程与实施例一的步骤204类似，此处不再赘述。
以第一指示和第二指示为PRACH资源的候选资源列表为例描述：
源CU通过F1接口消息发送第一可用的PRACH资源给源DU。目标CU通过F1接口消息发送第二可用的PRACH资源给目标DU。源DU收到源CU发送的第一可用的PRACH资源后，选择合适的第一PRACH资源，目标DU收到目标CU发送的第二可用的PRACH资源后，选择合适的第二PRACH资源。
可选的，源DU发送第一PRACH资源给源CU，使得源CU获知所述源DU所选择的PRACH资源，具体的，所述第一PRACH资源可以是源DU通过F1接口消息发送给源CU。
可选的，目标DU发送第一PRACH资源给目标CU，使得目标CU获知所述目标DU所选择的PRACH资源，具体的，所述第一PRACH资源可以是目标DU通过F1接口消息发送给目标CU。
进一步可选的，如果源DU或者目标DU主动修改了PRACH资源信息，所述源DU和所述目标DU需要发送修改后的PRACH资源信息给所述源CU和目标CU，具体的，所述修改后的PRACH资源信息可以是源DU和目标DU通过F1接口消息发送给源CU和目标CU，源CU和目标CU可以再进一步的进行随机接入信道RACH的优化。
需要说明的是，所述F1接口消息可以是现有的F1接口消息，也可以是新定义的F1接口消息，本申请实施例在此不限定。
场景2：源CU先与源DU建立F1接口，然后源CU与目标CU建立了Xn接口连接，然后目标CU再与目标DU建立F1接口，请参阅图6，本申请实施例中PRACH资源的处理方法的另一实施例包括：
601、源CU获取源DU的第一信息。
第一信息的内容以及传输过程与上述实施例一的步骤201类似，此处不再赘述。
需要说明的是源CU和源DU之间通过F1接口消息交互所述第一信息。
602、源CU将获取到的第一信息发送给目标CU。
第一信息的内容以及传输过程与上述实施例一的步骤201类似，此处不再赘述。
603、目标CU根据第一信息进行处理。
具体的，目标CU使用接收到的第一信息进行随机接入信道RACH的优化，可以理解的，目标CU进行PRACH资源信息协调后，为目标DU分配不冲突的PRACH资源。
可选的，目标CU为目标DU分配一个PRACH资源候选集，由目标DU自己选择。可选的，目标CU如果已经在F1接口建立消息中获取到了目标DU的PRACH资源，则目标CU协调PRACH资源与Xn接口获取的源CU的PRACH资源，并重新为目标DU分配新的PRACH资源，所述新的PRACH资源与所述源CU的PRACH资源不冲突。
604、目标CU向目标DU发送第一指示，该第一指示用于指示目标DU进行随机接入信道RACH的优化。
第一指示的内容以及传输过程与上述实施例一的步骤203类似，此处不再赘述。
605、目标DU根据第一指示进行处理。
具体的处理过程与上述实施例一的步骤204类似，此处不再赘述。
可选的，目标DU根据第一指示修改为新的PRACH资源后，可以将新的PRACH资源通过目标CU发送给源CU，进一步可选的，源CU可以将新的PRACH资源发送给源DU。
场景3：源CU和目标CU均已经与各自的DU建立了F1接口，然后源CU和目标CU之间再建立Xn接口连接，请参阅图7，本申请实施例中PRACH资源的处理方法的另一实施例包括：
701、源DU通过F1接口消息发送第一信息给源CU，目标DU通过F1接口消息发送第二信息给目标CU。
第一信息和第二信息的内容以及发送的具体过程与上述实施例一的步骤201类似，此处不再赘述。
可以理解的，本申请中的源DU发送的第一信息与目标DU发送的第二信息的内容格式相同，此处的第一信息和第二信息只是为了区分信息的发送方是源DU还是目标DU，第一信息表示发送方为源DU，第二信息表示发送方为目标DU。
可以理解的是，源DU向源CU发送第一信息的过程、目标DU向目标CU发送第二信息的过程可以同时进行，也可以依次进行，也可以单独执行，本申请此处不做限定。
702、源CU发送第一信息给目标CU，目标CU发送第二信息给源CU。
第一信息和第二信息的内容以及发送的具体过程与实施例一中步骤201和步骤202类似，此处不再赘述。
可以理解的是，源CU向目标CU发送第一信息的过程、目标CU向源CU发送第二信息的过程可以同时进行，也可以依次进行，也可以单独执行，本申请此处不做限定。
703、源CU或者目标CU根据第一信息或第二信息进行处理。
具体的，源CU或者目标CU使用接收到的第一信息或者第二信息进行随机接入信道RACH的优化，可以理解的，源CU或者目标CU使用接收到的第一信息或者第二信息进行随机接入信道RACH的优化。
具体的处理的过程与上述实施例一的步骤202类似，此处不再赘述。
704、源CU发送第一指示给源DU，或者目标CU发送第一指示给目标DU。
具体的第一指示的内容以及发送过程同实施例一的步骤203类似,此处不再赘述。
需要说明的是第一指示是通过F1接口消息发送的，所述F1接口消息可以是现有的F1接口消息，或者是新定义的消息，本申请此处不限定。
705、源DU或者目标DU根据第一指示进行处理。
具体的处理过程与实施例一的步骤204类似，此处不再赘述。
例如，如果源CU发现PRACH资源冲突，则发送冲突指示给源DU，或者为源DU分配新的PRACH资源；或者，如果目标CU发现PRACH资源冲突，则发送冲突指示给目标DU，或者为目标DU分配新的PRACH资源。具体过程与上述实施例一中的步骤204类似，此处不再赘述。
本申请实施例中，针对不同的应用场景，源CU接收源DU发送的第一信息，目标CU接收目标DU发送的第二信息，其中，第一信息和第二信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波的PRACH资源信息中的至少一个，并根据第一信息和第二信息进行随机接入信道RACH的优化，避免了目标CU/源DU与源CU的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
需要说明的是，本申请所有的实施例描述的PRACH资源信息可以是指DU下各个小区的PRACH资源信息，或是指CU下各个小区的PRACH资源信息。
需要说明的是，本实施例还适用于LTE的CU-DU架构下的数据传输场景，具体此处不再赘述。
本申请中CU和DU之间交互可以使用F1接口消息或者V1接口消息(F1AP或者V1AP消息)，示例性的，现有的F1AP消息可以是gNB-CU/gNB-DU配置更新消息(configuration update)，或者gNB-CU/gNB-DU配置更新响应消息(configuration update acknowledge)，或者UE上下文建立/修改请求消息(user equipment context setup/modification request)，或者UE上下文建立/修改响应消息(user equipment context setup/modification response)，或者UE上下文建立/修改需求消息(user equipment context setup/modification required)，或者UE上下文释放命令/请求/完成消息(UE context release command/request/complete)。
上述实施例三、实施例四对NR的CU-DU场景进行了描述，当应用在EN-DC、MR-DC场景中时，EN-DC场景和MR-DC场景如图8所示。具体过程与上述CU-DU场景类似，EN-DC场景还包括Intra MN场景和Inter MN场景，其中Intra MN场景包括一个主基站(master node，MN)且该MN支持多个辅基站(Secondary Node，SN)；Inter MN场景包括多个MN，且各个MN之间具有接口，每个MN还可以与各自支持的1个或多个SN交互信息。
以EN-DC场景为例进行说明，当包括一个MN和一个SN，具体步骤如下：
步骤1、辅基站向主基站发送第一信息。
第一信息的内容以及发送过程与步骤301类似，此处不再赘述。
步骤2、主基站根据第一信息进行处理。
具体处理过程与步骤302类似，此处不再赘述。
步骤3、主基站向辅基站发送第一指示，该第一指示用于指示辅基站进行随机接入信道RACH的优化。
具体的第一指示的内容与发送过程与上述实施例步骤303类似，此处不再赘述。
步骤4、辅基站根据第一指示进行处理。
具体处理过程与步骤304类似，此处不再赘述。
以EN-DC的Intra MN场景为例进行说明，当包括MN，MN对应SN1和SN2，具体步骤如下：
步骤1、SN1向MN发送第一信息。
第一信息的内容以及发送过程与步骤401类似，此处不再赘述。
步骤2、SN2向MN发送第二信息。
第二信息的内容以及发送过程与步骤402类似，此处不再赘述。
步骤3、MN根据第一信息和第二信息进行处理。
具体处理过程与步骤403类似，此处不再赘述。
步骤4、MN向SN1或SN2发送第一指示，该第一指示用于指示SN1或SN2进行随机接入信道RACH的优化。
具体的第一指示的内容与发送过程与上述实施例步骤404类似，此处不再赘述。
步骤5、SN1或SN2根据第一指示进行处理。
具体处理过程与步骤405类似，此处不再赘述。
以EN-DC的Inter MN场景为例进行说明，当包括MN1和MN2，MN1对应SN1，MN2对应SN2，具体步骤如下：
步骤1、MN1和MN2之间通过Xn接口消息交互第一信息，MN1和MN2根据第一信息进行处理。
具体处理过程与步骤501类似，此处不再赘述。
步骤2、MN1和SN1建立X2/Xn接口，MN2和SN2建立X2/Xn接口。
步骤3、MN1通过X2/Xn接口消息发送第一可用的PRACH资源给SN1。
第一可用的PRACH资源的内和发送过程与步骤503类似，此处不再赘述。
步骤4、MN2通过X2/Xn接口消息发送第二可用的PRACH资源给SN2。
第二可用的PRACH资源的内和发送过程与步骤503类似，此处不再赘述。
步骤5、SN1在收到第一可用的PRACH资源后选择合适的PRACH资源，SN2在收到第二可用的PRACH资源后选择合适的PRACH资源。
具体选择过程与步骤505类似，此处不再赘述。
与CU-DU架构不同的是，MN和SN之间的接口是EN-DC的X2接口或者是Xn接口，其余场景类似，这里不再赘述。需要说明的是，common的PRACH资源可以通过EN-DC X2建立消息进行交互与冲突指示，BFR的PRACH资源可以在SN增加/修改消息中进行交互与冲突指示。
本申请提供的方案还可以应用在MR-DC场景，MR-DC场景与EN-DC场景类似，区别在于EN-DC场景中主基站是LTE的基站(eNB)，连接LTE的核心网，MR-DC场景中主基站是NR的基站(gNB)，连接NR的核心网，并且MN和SN之间的接口是X2/Xn接口，其余类似,此处不再赘述。
MR-DC场景与EN-DC场景的PRACH资源的处理过程，可以参考上述各个实施例中的各个步骤，此处不再赘述。
需要说明的是，本实施例还适用于LTE多链接以及LTE和WLAN的多链接的数据传输场景，具体此处不再赘述。
本申请实施例，通过引入协调BFR/OSI的专用PRACH资源，从而避免在发生BFR/OSI的时候相邻小区使用相同的前导序列而产生的相互干扰。另外考虑了CU-DU架构下DU的PRACH资源协调以及EN-DC架构、MR-DC架构下SN的PRACH资源协调，降低了DU间和SN间的干扰。
实施例五
本实施例所示的物理随机接入信道PRACH资源的处理方法应用至NR的CU-DU架构下；在NR的CU-DU架构下，本实施例所示的第一接入设备为gNB-CU，简单称之为CU，第三接入设备为gNB-DU，简单称之为DU，当一个CU下支持多个DU时，请参阅图13，本申请实施例中PRACH资源的处理方法的另一实施例包括：
可能的实现方式一：
1301、第一接入设备向第三接入设备发送第三信息；
本实施例所示的第三接入设备可为第一接入设备下所支持的至少一个接入设备中的一个，所述第三信息中包括所述第三接入设备邻区的PRACH资源信息，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区，所述邻区的PRACH资源信息包括直接邻区的PRACH资源信息和间接邻区的PRACH资源信息，所述直接邻区是小区的直接相邻的小区称之为直接邻区，所述间接邻区是小区的直接邻区的相邻小区称之为间接邻区，所述第三接入设备的邻区可以是第一接入设备来确定，或者是其他方式确定，本申请实施例在此不限定。
具体的，所述第三信息可包括所述第三接入设备下的第一目标小区的至少一个邻区，该第一目标小区为所述第三接入设备下的任一小区，本申请对第一目标小区的具体数目不做限定，即所述第一目标小区的数目为一个或多个。
可选的，所述第三接入设备可以向第一接入设备请求获取所述第三接入设备下的第一目标小区的第三信息，具体的，所述第三接入设备可以向第一接入设备发送第三接入设备下的第一目标小区的标识和/或第一接入设备下的第二目标小区的标识，第一接入设备向第三接入设备发送第三信息，该第二目标小区为所述第一接入设备下的任意一个或者多个小区，也即该第二目标小区为第三接入设备下的第一目标小区的直接邻区，需要说明的是，在此，所述第三接入设备可以提前从第一接入设备获取到所述第二目标小区的信息，本申请对第二目标小区的具体数目不做限定，即所述第二目标小区的数据为一个或多个。
所述PRACH资源信息包括公共PRACH资源信息、BFR的PRACH资源信息、OSI的PRACH资源信息以及上行载波的PRACH资源信息中的至少一个。所述公共的PRACH资源信息可以理解为第三接入设备下各小区通用的PRACH资源信息，也即BFR或者OSI或者上行载波或者补充上行载波通用的PRACH资源信息；所述上行载波的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
具体如，所述PRACH资源信息可单独包括公共PRACH资源信息，又如所述PRACH资源信息可单独包括BFR的PRACH资源信息，又如所述PRACH资源信息可单独包括OSI的PRACH资源信息，又如所述PRACH资源信息可单独包括上行载波的PRACH资源信息。
又具体如，所述PRACH资源信息可包括公共PRACH资源信息、BFR的PRACH资源信息、OSI的PRACH资源信息以及上行载波的PRACH资源信息中的任意二个的组合，具体组合方式 不做限定，如所述PRACH资源信息可包括公共PRACH资源信息和BFR的PRACH资源信息。
又具体如，所述PRACH资源信息可包括公共PRACH资源信息、BFR的PRACH资源信息、OSI的PRACH资源信息以及上行载波的PRACH资源信息中的任意三个的组合，具体组合方式不做限定，如所述PRACH资源信息可包括公共PRACH资源信息，BFR的PRACH资源信息以及OSI的PRACH资源信息。
又具体如，所述PRACH资源信息可包括公共PRACH资源信息、BFR的PRACH资源信息、OSI的PRACH资源信息以及上行载波的PRACH资源信息中的全部信息。
示例的，第三接入设备下可包括小区1、小区2、小区3；小区1的邻区包括小区2、小区3、小区4、小区5，其中，小区2、小区3是小区1的直接邻区，小区4、小区5是小区1的间接邻区；小区2的邻区包括小区1、小区3、小区4、小区5，其中，小区1、小区3是小区2的直接邻区，小区4、小区5是小区2的间接邻区；小区3的邻区包括小区1、小区2、小区6、小区7，其中，小区2、小区1是小区3的直接邻区，小区6、小区7是小区3的间接邻区；则小区1的邻区的PRACH资源就包括小区2、小区3、小区4、小区5的PRACH资源，小区2的邻区的PRACH的资源就包括小区1、小区3、小区4、小区5的PRACH资源，小区3的邻区的PRACH的资源就包括小区2、小区1、小区6、小区7的PRACH资源，第一接入设备发送给第三接入设备的第三信息包括小区1的邻区的PRACH资源信息、小区2的邻区的PRACH资源信息以及小区3的邻区的PRACH资源信息中的至少一个。所述小区4、小区5、小区6、小区7可能是其他接入设备下的小区(例如，这里第一接入设备是CU1，第三接入设备是所述CU1下的DU1，其他接入设备是所述CU下的DU2，或者其他接入设备是CU2下的DU)，或者，也可能是其他基站下的小区，本申请实施例在此不限定。
可选的，在本步骤前，所述第一接入设备可以获取相邻基站、第四接入设备以及第五接入设备下至少一个小区的PRACH资源信息。其中，第四接入设备为与第一接入设备相邻的接入设备，例如，若第一接入设备为CU1，则第四接入设备可为与CU1相邻的CU2或者为与CU1相邻的gNB，第五接入设备为与第三接入设备相邻的接入设备，例如，若第三接入设备为CU1下的DU1，则所述第五接入设备为CU1下服务的DU2和/或与CU1相邻的CU2下服务的DU。
具体的，第一接入设备可以获取该第一接入设备下各个第三接入设备下的小区的PRACH资源信息，例如通过第一接入设备和第三接入设备之间的X2、Xn或者F1接口，或者，第一接入设备还可以获取第四接入设备或者相邻基站或第五接入设备下的小区的PRACH资源信息，例如通过X2/Xn接口获取。第一接入设备可以根据所获取的信息确定所述第三接入设备的邻区，也即是确定所述第一接入设备下小区的邻区。所述过程可以在本步骤前执行，也可以在其他可能的步骤，本申请实施例在此不限定。
可选的，第一接入设备还可以获取相邻基站、相邻小区、第四接入设备以及第五接入设备中至少一个的相邻程度，具体的，所述第一接入设备可向相邻基站、相邻小区、第四接入设备以及第五接入设备中至少一个发送请求，以使相邻基站、相邻小区、第四接入设备以及第五接入设备中至少一个根据该请求向第一接入设备回复该相邻程度，所述相邻程度是指第一接入设备下的至少一个小区与相邻基站、第四接入设备以及第五接入设备下至少一个小区的相邻程度。相邻程度可以是直接相邻、间接相邻、特定距离中的一个或多个，相邻程度可以用0/1/2等来标识(0代表直接相邻，1代表间接相邻，2代表特定距离)，或者相邻程度 还可以用其他来表征，本申请实施例在此不限定。可选的，所述第一接入设备还可以向相邻基站、第四接入设备、第五接入设备至少一个发送指示，所述指示用于指定获取特定小区下的邻区信息，所述指示可以携带在现有X2/Xn/F1的现有消息或者新定义的消息中，本申请实施例在此不限定。
需要说明的是，本发明实施例中第一接入设备和第三接入设备之间的交互可以通过现有的X2、Xn、F1、V1等接口消息，或者其他形式的消息，本申请实施例在此不限定。
1302、第三接入设备根据第三信息进行进行随机接入信道RACH的优化；
第三接入设备根据所述第三接入设备邻区的PRACH资源信息进行随机接入信道RACH的优化，可以理解的，第三接入设备根据所述第三接入设备邻区的PRACH资源信息进行随机接入信道RACH的优化，具体的，第三接入设备根据所述第三接入设备下各个小区的邻区的PRACH资源信息确定是否需要对第三接入设备下的小区的PRACH资源进行随机接入信道RACH的优化，如果确定某个小区的PRACH资源需要优化，第三接入设备重新为所述小区配置一组PRACH资源，或者第三接入设备告知OAM，由OAM为所述小区配置一组PRACH资源。本申请实施例在此不限定。
示例的，第三接入设备收到第一接入设备发送的第三接入设备下小区1的邻区的PRACH资源信息，第三接入设备判断小区1的PRACH资源信息和邻区的PRACH资源信息是否冲突，如果冲突，第三接入设备为小区1重新配置一组PRACH资源。
1303、第三接入设备将优化后的PRACH资源发送给第一接入设备。
本实施例所示的步骤1303为可选执行的步骤，本申请实施例中，第三接入设备获取第一接入设备发送的第三信息，其中，所述第三信息中包括所述第三接入设备的邻区的PRACH资源信息，以使第三接入设备能够根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
还可选的，所述第三接入设备也可将所述第三信息发送给OAM，由OAM根据所述第三信息进行处理，OAM根据第三信息进行处理的具体过程可参见上述所示的第三接入设备根据第三信息进行处理的过程，具体不做赘述，例如，若OAM根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突，OAM可将优化后的PRACH资源发送发送给第三接入设备。
为更好的理解实施例五，以下结合图14所示的具体应用场景对实施例四进行详细说明，在本应用场景中，以NR的CU-DU架构为例，即第一接入设备为gNB-CU，简单称之为CU，第三接入设备为gNB-DU，简单称之为DU，当一个CU下支持多个DU时，即Intra CU场景，请参阅图14，本申请实施例中PRACH资源的处理方法的可能的实现方式一：
1401、CU向DU发送第三信息；
所述第三信息中包括所述DU的邻区的PRACH资源信息，所述DU的邻区是指所述DU下第一目标小区的至少一个邻区，该第一目标小区可为DU下的至少一个小区，本申请对第一目标小区的具体数目不做限定。对邻区含义的具体说明，请详见图13所示，具体不做赘述。所述PRACH资源信息的具体说明，请详见图13所示，具体不做赘述。
可选的，在本步骤前，所述CU可以获取相邻基站、相邻CU以及相邻DU下至少一个小区的PRACH资源信息。其中所述相邻DU还包括CU下服务的其他DU。具体的，CU可以获取该 CU下各个DU下的小区的PRACH资源信息，例如通过CU和DU之间的F1接口，或者，CU还可以获取其相邻CU或者相邻基站或相邻DU下的小区的PRACH资源信息，例如通过X2/Xn接口获取。CU可以根据所获取的信息确定所述DU的邻区，也即是确定所述CU下小区的邻区。所述过程可以在本步骤前执行，也可以在其他可能的步骤，本申请实施例在此不限定。可选的，CU还可以获取相邻基站、相邻小区、相邻CU以及相邻DU中至少一个的相邻程度，所述相邻程度是指CU下小区与相邻基站、相邻CU以及相邻DU至少一个下的小区的相邻程度，该相邻程度的具体说明，请详见图13所示，具体不做赘述。
1402、DU根据第三信息进行随机接入信道RACH的优化；
DU根据所述DU的邻区的PRACH资源信息进行随机接入信道RACH的优化，具体的，DU根据所述DU下各个小区的邻区的PRACH资源信息确定是否需要对DU下的小区的PRACH资源配置进行随机接入信道RACH的优化，如果确定某个小区的PRACH资源需要优化，DU重新为所述小区配置一组PRACH资源，或者DU告知OAM，由OAM为所述小区配置一组PRACH资源。本申请实施例在此不限定。
示例的，DU收到CU发送的DU下小区1的邻区的PRACH资源信息，DU判断小区1的PRACH资源信息和邻区的PRACH资源信息是否冲突，如果冲突，DU为小区1重新配置一组PRACH资源。
1403、DU发送优化后的PRACH资源给CU。
具体的，本步骤为可选执行的步骤，是否执行在本应用场景中不做限定。
本应用场景中，DU获取CU发送的第三信息，其中，所述第三信息中包括DU的邻区的PRACH资源信息，以使DU能够根据第三信息进行随机接入信道RACH的优化，避免了CU和DU的PRACH资源出现冲突。
还可选的，DU也可将所述第三信息发送给OAM，由OAM根据所述第三信息进行处理，OAM根据第三信息进行处理的具体过程可参见上述所示的DU根据第三信息进行处理的过程，具体不做赘述，例如，若OAM根据第三信息进行随机接入信道RACH的优化，避免了CU下小区之间的PRACH资源出现冲突，OAM可将优化后的PRACH资源发送发送给DU。
可以理解的是，以上各个方法实施例中，由接入设备实现的方法/步骤，也可以由可用于接入设备的部件(例如芯片或者电路)实现。
上面对本申请实施例中PRACH资源的处理方法进行了描述，下面对本申请实施例中的接入设备进行描述，请参阅图9，本申请实施例所示的第一接入设备用于执行图2，图3图4，图5，图6以及图7所示的第一接入设备所执行的步骤，具体执行过程，请详见图2，图3图4，图5，图6以及图7所示，具体不做赘述。本申请实施例中第一接入设备900的一个实施例包括：
接收模块901，用于从第二接入设备接收第一信息，所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
处理模块902，用于根据所述第一信息进行处理。
本申请实施例中，第一接入设备接收第二接入设备发送的第一信息，根据第一信息中携带的波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL 的PRACH资源信息中的至少一个进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
可选的，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息，避免了第一接入设备和第二接入设备的常规上行载波的专用PRACH资源和/或补充上行载波的PRACH的专用资源中的至少一项出现冲突。
可选的，所述第一信息还包括公共的PRACH资源信息，或，公共的PRACH资源信息和公共的PRACH资源的长短格式指示。
可选的，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。
可选的，第一接入设备900还包括：
发送模块903，用于向所述第二接入设备发送第一指示，所述第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。
可选的，所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。
可选的，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
可选的，所述第一指示还包括候选的PRACH资源。
可选的，所述第一接入设备为第一新无线接入技术NR基站，所述第二接入设备为第二NR基站；或，所述第一接入设备为集中式单元CU，所述第二接入设备为分布式单元DU；或，所述第一接入设备为分布式单元DU，所述第二接入设备为集中式单元CU；或，所述第一接入设备为NR基站，所述第二接入设备为长期演进LTE基站；或，所述第一接入设备为LTE基站，所述第二接入设备为NR基站。
可以理解的是，本申请实施例中第一接入网设备的各个模块实现的功能或者操作还可以进一步参考方法实施例的描述，此处不再赘述。可以理解的是，上述各个模块可以集成在一起，也可以独立设置，本申请实施例对此不做限定。
请参阅图10，本申请实施例所示的第二接入设备用于执行图2，图3图4，图5，图6以及图7所示的第二接入设备所执行的步骤，具体执行过程，请详见图2，图3图4，图5，图6以及图7所示，具体不做赘述。本申请实施例中第二接入设备1000的一个实施例包括：
确定模块1001，用于确定第一信息,所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
发送模块1002，用于向第一接入设备发送所述第一信息。
本申请实施例中，第二接入设备向第一接入设备发送第一信息，该第一信息中携带有波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个，以使得第一接入设备进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源、以及上行载波UL的专用PRACH资源中的至少一项出现冲突。
可选的，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
可选的，所述第一信息还包括公共的PRACH资源信息，或，公共的PRACH资源信息和公共的PRACH资源的长短格式指示。
可选的，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。
可选的，第二接入设备1000还包括：
接收模块1003，用于从所述第一接入设备接收第一指示，所述第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。
可选的，所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。
可选的，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
可选的，所述第一接入设备为第一新无线接入技术NR基站，所述第二接入设备为第二NR基站；或，所述第一接入设备为集中式单元CU，所述第二接入设备为分布式单元DU；或，所述第一接入设备为分布式单元DU，所述第二接入设备为集中式单元CU；或，所述第一接入设备为NR基站，所述第二接入设备为长期演进LTE基站；或，所述第一接入设备为LTE基站，所述第二接入设备为NR基站。
可选的，所述第一指示还包括候选的PRACH资源。
请继续参阅图15，本申请实施例所示的第一接入设备用于执行图13以及图14所示的第一接入设备所执行的步骤，具体执行过程，请详见图13以及图14所示，具体不做赘述。本申请实施例中第一接入设备1500的一个实施例包括：
获取模块1501，用于获取第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
发送模块1502，用于设备向所述第三接入设备发送所述第三信息。
本申请中，第一接入设备向所述第三接入设备发送所述第三信息。以使第三接入设备能够根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
可选的，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
可选的，所述第三信息还包括公共的PRACH资源的长短格式指示。
可选的，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。
可选的，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个， 所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
可选的，所述获取模块1501包括，
第一获取子模块15011，用于从相邻基站、第四接入设备以及第五接入设备下至少一个小区获取PRACH资源信息，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备；
第二获取子模块15012，用于根据已获取的所述PRACH资源信息确定所述第三接入设备邻区的PRACH资源信息。
可选的，所述第一获取子模块15011已获取的所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、所述第四接入设备以及所述第五接入设备下至少一个的小区的相邻程度，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备。
可选的，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
请继续参阅图16，本申请实施例所示的第三接入设备用于执行图13以及图14所示的第三接入设备所执行的步骤，具体执行过程，请详见图13以及图14所示，具体不做赘述。本申请实施例中第三接入设备1600的一个实施例包括：
接收模块1601，用于从第一接入设备接收第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
处理模块1602，用于根据所述第三信息进行处理。
所述第三接入设备根据所述第三信息进行处理。在第三接入设备根据第三信息进行处理的情况下，第三接入设备能够根据第三信息进行随机接入信道RACH的优化，避免了第一接入设备下小区之间的PRACH资源出现冲突。
可选的，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
可选的，所述第三信息还包括公共的PRACH资源的长短格式指示。
可选的，所述PRACH资源信息包括根序列索引、循环移位、高速标识、PRACH频率偏置和PRACH配置索引中的至少一个。
可选的，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
可选的，所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、第四接入设备以及第五接入设备下至少一个的小区的相邻程度，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备。
可选的，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
图11是本申请实施例提供的一种接入设备的结构示意图，该接入设备1100可因配置或 性能不同而产生比较大的差异，可以包括一个或一个以上处理器(central processing units，CPU)1101(例如，一个或一个以上处理器)和存储器1109，一个或一个以上存储应用程序1107或数据1106的存储介质1108(例如一个或一个以上海量存储设备)。其中，存储器1109和存储介质1108可以是短暂存储或持久存储。存储在存储介质1108的程序可以包括一个或一个以上模块(图示没标出)，每个模块可以包括对接入设备中的一系列指令操作。更进一步地，处理器1101可以设置为与存储介质1108通信，在接入设备1100上执行存储介质1108中的一系列指令操作。
接入设备1100还可以包括一个或一个以上电源1102，一个或一个以上有线或无线网络接口1103，一个或一个以上输入输出接口1104，和/或，一个或一个以上操作系统1105，例如Windows Serve，Mac OS X，Unix，Linux，FreeBSD等等。本领域技术人员可以理解，图11中示出的接入设备结构并不构成对接入设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
下面结合图11对接入设备的各个构成部件进行具体的介绍：
处理器1101是可以按照设置的PRACH资源的处理方法进行处理。处理器1101利用各种接口和线路连接整个接入设备的各个部分，通过运行或执行存储在存储器1109内的软件程序和/或模块，以及调用存储在存储器1109内的数据，执行接入设备的各种功能和处理数据，从而实现PRACH资源的协调或优化。
存储器1109可用于存储软件程序以及模块，处理器1101通过运行存储在存储器1109的软件程序以及模块，从而执行接入设备1100的各种功能应用以及数据处理。存储器1109可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如发送第一信息等)等；存储数据区可存储根据接入设备的使用所创建的数据(比如PRACH资源的冲突类型等)等。此外，存储器1109可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。在本申请实施例中提供的PRACH资源的处理方法的程序和接收到的数据流存储在存储器中，当需要使用时，处理器1101从存储器1109中调用。
图12A是本申请实施例提供的一种接入设备的结构示意图，参考图12A。在采用集成的模块的情况下，图12A示出了上述实施例中所涉及的接入设备的一种可能的结构示意图。接入设备1200包括：处理模块1202和通信模块1203。处理模块1202用于对接入设备的动作进行控制管理，例如，处理模块1202用于支持接入设备执行上述实施例的步骤202和步骤204、步骤302和步骤304，步骤403和步骤405，步骤501和步骤503，步骤603和步骤605，步骤703和步骤705，和/或用于本文所描述的技术的其它过程。通信模块1203用于支持接入设备与其他网络实体的通信。可选的，接入设备还可以包括存储模块1201，用于存储接入设备的程序代码和数据。
可以理解的是，处理模块1202具体可以执行图9中处理模块902的功能，处理模块1202可以执行图10中确定模块1001的功能；处理模块1202具体可以执行图15中获取模块1501的功能，处理模块1202具体可以执行图16中处理模块1602的功能，通信模块1203具体可以执行图9中接收模块901和发送模块903的功能，通信模块1203可以执行图10中发送模块1002和接收模块1003的功能，通信模块1203可以执行图15中发送模块1502的功能， 通信模块1203可以执行图16中接收模块1601的功能。
其中，处理模块1202可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)，通用处理器，数字信号处理器(digital signal processor，DSP)，专用集成电路(application-specific integrated circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块1203可以是通信接口、收发器、收发电路等，其中，通信接口是统称，可以包括一个或多个接口，例如收发接口。存储模块1201可以是存储器。
当处理模块1202为处理器，通信模块1203为通信接口，存储模块1201为存储器时，本申请实施例所涉及的接入设备可以为图12B所示的接入设备。
参阅图12B所示，该接入设备1210包括：处理器1212、通信接口1213、存储器1211。可选的，接入设备1210还可以包括总线1214。其中，通信接口1213、处理器1212以及存储器1211可以通过总线1214相互连接；总线1214可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。总线1214可以分为地址总线、数据总线、控制总线等。为便于表示，图12B中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
可选的，在本申请的一些实施例中，
通信接口1213用于执行上述图2中的步骤201、步骤203，图3中的步骤301、步骤303，图4中的步骤401-402、步骤404，图5中的步骤502，图6中步骤601-602、步骤601，以及图7中的步骤701-702、步骤704，图13中的步骤1301，步骤1303，图14中的步骤1401，步骤1403，此处不再赘述。
可选的，在本申请的一些实施例中，
处理器1212还用于执行上述图2中的步骤202、步骤204，具体此处不再赘述。
可选的，在本申请的一些实施例中，
处理器1212还用于执行上述图3中的步骤302、步骤304，具体此处不再赘述。
可选的，在本申请的一些实施例中，
处理器1212还用于执行上述图4中的步骤403、步骤405，具体此处不再赘述。
可选的，在本申请的一些实施例中，
处理器1212还用于执行上述图5中的步骤501、步骤503，具体此处不再赘述。
可选的，在本申请的一些实施例中，
处理器1212还用于执行上述图6中的步骤603、步骤605，具体此处不再赘述。
处理器1212还用于执行上述图13中的步骤1302，具体此处不再赘述。
处理器1212还用于执行上述图14中的步骤1402，具体此处不再赘述。
可选的，在本申请的一些实施例中，
处理器1212还用于执行上述图7中的步骤703、步骤705，具体此处不再赘述。
本申请实施例中，第二接入设备向第一接入设备发送第一信息，其中，第一信息中包括 波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息中的至少一个，以使得第一接入设备根据第一信息进行随机接入信道RACH的优化，避免了第一接入设备和第二接入设备的BFR的专用PRACH资源，OSI的专用PRACH资源、上行载波UL的专用PRACH资源、常规上行载波的专用PRACH资源、补充上行载波的PRACH的专用资源中的至少一项出现冲突。
本申请涉及的计算机可以为执行上述实施例中各个模块功能的装置。该计算机可以为集成了上述实施例中的各个功能模块的装置。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
所述集成的模块(例如存储模块1201、处理模块1202和通信模块1203)如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (30)

  1. 一种物理随机接入信道PRACH资源的处理方法，其特征在于，包括：
    第一接入设备从第二接入设备接收第一信息，所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
    所述第一接入设备根据所述第一信息进行处理。
  2. 根据权利要求1所述的处理方法，其特征在于，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
  3. 根据权利要求1或2所述的处理方法，其特征在于，
    所述第一信息还包括公共的PRACH资源信息，或，
    公共的PRACH资源信息和公共的PRACH资源的长短格式指示。
  4. 根据权利要求3所述的处理方法，其特征在于，所述方法还包括：
    所述第一接入设备向所述第二接入设备发送第一指示，所述第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。
  5. 根据权利要求4所述的处理方法，其特征在于，
    所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。
  6. 根据权利要求5所述的处理方法，其特征在于，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
  7. 根据权利要求4所述的处理方法，其特征在于，
    所述第一指示还包括候选的PRACH资源。
  8. 一种物理随机接入信道PRACH资源的处理方法，其特征在于，包括：
    第二接入设备确定第一信息,所述第一信息中包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
    所述第二接入设备向第一接入设备发送所述第一信息。
  9. 根据权利要求8所述的处理方法，其特征在于，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
  10. 根据权利要求8或9所述的处理方法，其特征在于，
    所述第一信息还包括公共的PRACH资源信息，或，
    公共的PRACH资源信息和公共的PRACH资源的长短格式指示。
  11. 根据权利要求10所述的处理方法，其特征在于，所述方法还包括：
    所述第二接入设备从所述第一接入设备接收第一指示，所述第一指示包括PRACH资源冲突的指示、PRACH资源的冲突类型、PRACH资源的候选资源列表、PRACH资源的长短格式指示中的至少一种。
  12. 根据权利要求11所述的处理方法，其特征在于，
    所述PRACH资源的冲突类型包括公共的PRACH资源冲突、BFR的PRACH资源冲突、OSI的PRACH资源冲突以及上行载波的PRACH资源冲突中的至少一种。
  13. 根据权利要求12所述的处理方法，其特征在于，所述上行载波的PRACH资源冲突包括常规上行载波的PRACH资源冲突和/或补充上行载波的PRACH资源冲突。
  14. 根据权利要求11所述的处理方法，其特征在于，
    所述第一指示还包括候选的PRACH资源。
  15. 一种物理随机接入信道PRACH资源的处理方法，其特征在于，包括：
    第一接入设备获取第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
    第一接入设备向所述第三接入设备发送所述第三信息。
  16. 根据权利要求15所述的处理方法，其特征在于，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
  17. 根据权利要求15或16所述的处理方法，其特征在于，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
  18. 根据权利要求15至17任一项所述的处理方法，其特征在于，所述第一接入设备获取第三信息包括：
    所述第一接入设备从相邻基站、第四接入设备以及第五接入设备下至少一个小区获取PRACH资源信息，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备；
    所述第一接入设备根据已获取的所述PRACH资源信息确定所述第三接入设备邻区的PRACH资源信息。
  19. 根据权利要求15至18任一项所述的处理方法，其特征在于，所述第一接入设备已获取的所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、所述第四接入设备以及所述第五接入设备下至少一个的小区的相邻程度。
  20. 根据权利要求15至19任一项所述的处理方法，其特征在于，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
  21. 一种物理随机接入信道PRACH资源的处理方法，其特征在于，包括：
    第三设备从第一接入设备接收第三信息，所述第三信息中包括第三接入设备至少一个邻区的PRACH资源信息，所述PRACH资源信息包括波束恢复BFR的PRACH资源信息、按需系统信息OSI的PRACH资源信息、公共的PRACH资源信息以及上行载波UL的PRACH资源信息中的至少一个；
    所述第三接入设备根据所述第三信息进行处理。
  22. 根据权利要求21所述的处理方法，其特征在于，所述上行载波UL的PRACH资源信息包括常规上行载波的PRACH资源信息和/或补充上行载波的PRACH资源信息。
  23. 根据权利要求21或22所述的处理方法，其特征在于，所述第三接入设备为所述第一接入设备下所支持的至少一个接入设备中的一个，所述第三接入设备的邻区是指所述第三接入设备下小区的邻区。
  24. 根据权利要求21至23任一项所述的处理方法，其特征在于，所述PRACH资源信息包括至少一个相邻程度，所述至少一个相邻程度用于指示所述第一接入设备下的小区与所述相邻基站、第四接入设备以及第五接入设备下至少一个的小区的相邻程度，其中，所述第四接入设备为与所述第一接入设备相邻的接入设备，所述第五接入设备为与所述第三接入设备相邻的接入设备。
  25. 根据权利要求21至24任一项所述的处理方法，其特征在于，所述第一接入设备为集中式单元CU，所述第三接入设备为分布式单元DU。
  26. 一种接入设备，其特征在于，用于执行如权利要求1至25任一项所述的方法。
  27. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1至25任意一项所述的方法。
  28. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如权利要求1至25任意一项所述的方法。
  29. 一种通信系统，其特征在于，包括用于执行如权利要求1至7任意一项所述的方法的第一接入设备以及用于执行如权利要求8至14任意一项所述的方法的第二接入设备。
  30. 一种通信系统，其特征在于，包括用于执行如权利要求15至20任意一项所述的方法的第一接入设备以及用于执行如权利要求21至25任意一项所述的方法的第三接入设备。
PCT/CN2019/107248 2018-09-28 2019-09-23 一种物理随机接入信道prach资源的处理方法及装置 WO2020063522A1 (zh)

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Citations (3)

* 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
CN104254135A (zh) * 2013-06-27 2014-12-31 夏普株式会社 物理随机接入信道的发送和接收方法以及基站和用户设备
US20180270859A1 (en) * 2016-12-09 2018-09-20 Telefonaktiebolaget Lm Ericsson (Publ) PRACH Scheduling Method, Scheduled PRACH Transmission Method, Network Node and User Equipment

Patent Citations (3)

* 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
CN104254135A (zh) * 2013-06-27 2014-12-31 夏普株式会社 物理随机接入信道的发送和接收方法以及基站和用户设备
US20180270859A1 (en) * 2016-12-09 2018-09-20 Telefonaktiebolaget Lm Ericsson (Publ) PRACH Scheduling Method, Scheduled PRACH Transmission Method, Network Node and User Equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3849272A4 *

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