WO2021032014A1 - 一种小区配置的确定方法及装置 - Google Patents

一种小区配置的确定方法及装置 Download PDF

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Publication number
WO2021032014A1
WO2021032014A1 PCT/CN2020/109307 CN2020109307W WO2021032014A1 WO 2021032014 A1 WO2021032014 A1 WO 2021032014A1 CN 2020109307 W CN2020109307 W CN 2020109307W WO 2021032014 A1 WO2021032014 A1 WO 2021032014A1
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Prior art keywords
node
cell
information
ssb
configuration
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PCT/CN2020/109307
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English (en)
French (fr)
Inventor
刘凤威
宋兴华
袁世通
邱晶
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华为技术有限公司
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Publication of WO2021032014A1 publication Critical patent/WO2021032014A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for determining a cell configuration.
  • the base station establishes a connection with the core network through optical fiber
  • the wireless relay node (RN) establishes a connection with the core network through a wireless backhaul link, which can save part of the optical fiber deployment cost.
  • In-band relay is a relay solution in which the backhaul link and the access link share the same frequency band. Since no additional spectrum resources are used, the in-band relay has the advantages of high spectrum efficiency and low deployment cost.
  • the new radio (NR) in-band relay solution is called integrated access and backhaul (IAB), and the relay node is called an IAB node (IAB node).
  • the IAB node may have multiple cells, each with different characteristics. How to configure the cell of the IAB node has become an urgent problem to be solved.
  • the embodiments of the present application provide a method and device for determining a cell configuration to implement cell configuration for an IAB node.
  • a method for determining a cell configuration is provided.
  • the execution subject of the method is a node, which can be recorded as the first node.
  • the first node can be an IAB node or a relay node or any relay device.
  • the method includes the following steps: a first node sends first information to a second node, where the first information is used to indicate information of one or more cells of the first node; The node receives second information, where the second information is used to indicate the cell configuration of the first node, where the cell configuration of the first node is determined according to the information of one or more cells of the first node .
  • the cell information reported by the first node to the second node can assist the second node in determining the appropriate cell-level configuration. Since each cell of the first node has different characteristics, by indicating the cell configuration, the first node can obtain The configuration of each cell can better realize cell-level data transmission or signal transmission or reception.
  • a method for determining a cell configuration is provided.
  • the subject of the method is a node, which can be recorded as a second node.
  • the second node can be an IAB node or a relay node or any relay device.
  • the method includes the following steps: a second node receives first information from a first node, and the first information is used to indicate information of one or more cells of the first node; Information about one or more cells to determine the cell configuration of the first node; the second node sends second information to the first node, and the second information is used to indicate the cell configuration of the first node .
  • the cell information received from the first node can assist the second node to determine the appropriate cell-level configuration. Since each cell of the first node has different characteristics, the first node can obtain each cell by indicating the cell configuration The configuration, which can better realize cell-level data transmission or signal transmission or reception.
  • a method for determining a cell configuration is provided.
  • the execution subject of the method is a node, which can be recorded as a second node.
  • the second node can be an IAB node or a relay node or any relay device.
  • the method includes the following steps: the second node determines the cell configuration of the first node; the second node sends the cell configuration of the first node to the first node. Since each cell of the first node has different characteristics, the first node can obtain the configuration of each cell by instructing the cell configuration, so that cell-level data transmission or signal transmission or reception can be better realized.
  • the second node receives first information from the first node, and the first information is used to indicate information about one or more cells of the first node; the second node Determine the cell configuration of the first node according to the information of one or more cells of the first node.
  • the cell information received from the first node can assist the second node to determine a suitable cell-level configuration.
  • the first information includes one or more of the following: a cell identity, the number of beams used to send the SSB of the cell, the frequency information of the cell, the waveform parameters supported by the cell, or the number of the first node.
  • the associated information of each cell In this way, through the association information of multiple cells, the second node does not need to perform cell configuration separately for each of the multiple associated cells, which saves cell configuration overhead.
  • the embodiments of the present application further provide the following possible designs or implementations. The details are as follows.
  • the cell configuration of the first node includes a synchronization signal physical broadcast signal block SSB sending configuration; the first node sends the SSB of the cell according to the SSB sending configuration.
  • the cell information of the first node further includes the number of cells supported by the first node.
  • the first information includes one or more of the following: a cell identity, the number of beams used to send the SSB of the cell, the frequency information of the cell, the waveform parameters supported by the cell, or the number of the first node.
  • the associated information of each cell In this way, by reporting the association information of multiple cells, the second node does not need to perform cell configuration separately for each of the multiple cells that have associations, which saves cell configuration overhead.
  • the association information of the multiple cells of the first node includes: the multiple cells share antenna panels, or the multiple cells have the same orientation, or the multiple cells are co-located, so The multiple cells are quasi co-located, and the multiple cells adopt carrier aggregation or the multiple cells have the same physical cell identity PCI.
  • the reference signal transmission configuration includes: the cell identifier, cell group identifier, SSB transmission frequency domain position, SSB transmission subcarrier interval, SSB transmission period, SSB transmission offset, or The index of the sending position of the SSB in the period; wherein the cell group identifier is used to identify a group of cells, and the group of cells includes part or all of the multiple cells indicated by the association information.
  • the number of transmission position indexes of the SSB in a period is equal to the number of beams used by the SSB for transmitting the cell.
  • the second node can determine the SSB transmission configuration used by the cell according to the characteristics of the cell.
  • the frequency information of the cell includes: one or two of the center frequency of the cell or the frequency range of the cell; the transmission frequency domain position of the SSB includes the frequency information of the SSB A transmission center frequency point, where the transmission center frequency point of the SSB is located in the frequency range of the cell.
  • the second node can determine the SSB transmission configuration used by the cell according to the characteristics of the cell.
  • the waveform parameter supported by the cell includes one or more of the subcarrier interval supported by the cell or the cyclic prefix type supported by the cell.
  • the transmission subcarrier interval of the SSB belongs to the subcarrier interval supported by the cell.
  • the second node can determine the SSB transmission configuration used by the cell according to the characteristics of the cell.
  • the cell of the first node is a cell that the first node provides services to a subordinate node or a terminal.
  • the SSB is used for the initial access of the terminal, the transmission frequency domain position of the SSB includes the transmission center frequency of the SSB, and the transmission center frequency of the SSB is located in the synchronization grid sync- raster. In this way, the terminal can search the cell of the first node when accessing.
  • the cell configuration of the first node further includes: time division duplex TDD resource configuration and/or random access channel RACH configuration.
  • the first node determines the system information of the cell of the first node according to the cell configuration of the first node.
  • the system message of the cell of the first node includes the remaining minimum system message RMSI or SIB1.
  • a device in a fourth aspect, may be a node, denoted as a first node, or a device located in a node, or a device that can be matched and used with a node.
  • the device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the first aspect.
  • the modules may be hardware circuits, software, or hardware circuits combined with software.
  • the device may include a processing module and a communication module.
  • the processing module is used to call the communication module to perform receiving and/or sending functions. Illustratively:
  • a communication module configured to send first information to a second node, where the first information is used to indicate information about one or more cells of the first node; and used to receive second information from the second node, The second information is used to indicate the cell configuration of the first node, where the cell configuration of the first node is determined according to information of one or more cells of the first node.
  • the cell information reported by the first node to the second node can assist the second node in determining the appropriate cell-level configuration. Since each cell of the first node has different characteristics, by indicating the cell configuration, the first node can obtain The configuration of each cell can better realize cell-level data transmission or signal transmission or reception.
  • a device in a fifth aspect, may be a node, denoted as a second node, may also be a device located in a node, or a device that can be matched and used with a node.
  • the device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the second aspect.
  • the modules may be hardware circuits, software, or hardware circuits combined with software.
  • the device may include a processing module and a communication module.
  • the processing module is used to call the communication module to perform receiving and/or sending functions. Illustratively:
  • the communication module is used to receive first information from the first node, and the first information is used to indicate the information of one or more cells of the first node; the processing module is used to receive information according to one or more of the first node
  • the cell information determines the cell configuration of the first node; the communication module is further configured to send second information to the first node, where the second information is used to indicate the cell configuration of the first node.
  • the cell information received from the first node can assist the second node to determine the appropriate cell-level configuration. Since each cell of the first node has different characteristics, the first node can obtain each cell by indicating the cell configuration The configuration, which can better realize cell-level data transmission or signal transmission or reception.
  • a device in a sixth aspect, may be a node, denoted as a second node, may also be a device located in a node, or a device that can be matched and used with a node.
  • the device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the third aspect.
  • the modules may be hardware circuits, software, or hardware circuits combined with software.
  • the device may include a processing module and a communication module. The processing module is used to call the communication module to perform receiving and/or sending functions.
  • the processing module is used to determine the cell configuration of the first node; the communication module is used to send the cell configuration of the first node to the first node. Since each cell of the first node has different characteristics, the first node can obtain the configuration of each cell by instructing the cell configuration, so that cell-level data transmission or signal transmission or reception can be better realized.
  • the communication module is further configured to receive first information from the first node, and the first information is used to indicate information about one or more cells of the first node; the processing The module is also used to determine the cell configuration of the first node according to the information of one or more cells of the first node.
  • the cell information received from the first node can assist the second node to determine a suitable cell-level configuration.
  • the first information includes one or more of the following: a cell identity, the number of beams used to send the SSB of the cell, the frequency information of the cell, the waveform parameters supported by the cell, or the number of the first node.
  • the associated information of each cell In this way, through the association information of multiple cells, the second node does not need to perform cell configuration separately for each of the multiple associated cells, which saves cell configuration overhead.
  • the cell configuration of the first node includes a synchronization signal physical broadcast signal block SSB sending configuration; the first node sends the SSB of the cell according to the SSB sending configuration.
  • the cell information of the first node further includes the number of cells supported by the first node.
  • the first information includes one or more of the following: a cell identity, the number of beams used to send the SSB of the cell, the frequency information of the cell, the waveform parameters supported by the cell, or the number of the first node.
  • the associated information of each cell In this way, by reporting the association information of multiple cells, the second node does not need to perform cell configuration separately for each of the multiple cells that have associations, which saves cell configuration overhead.
  • the association information of the multiple cells of the first node includes: the multiple cells share antenna panels, or the multiple cells have the same orientation, or the multiple cells are co-located, so The multiple cells are quasi co-located, and the multiple cells adopt carrier aggregation or the multiple cells have the same physical cell identity PCI.
  • the reference signal transmission configuration includes: the cell identifier, cell group identifier, SSB transmission frequency domain position, SSB transmission subcarrier interval, SSB transmission period, SSB transmission offset, or The index of the sending position of the SSB in the period; wherein the cell group identifier is used to identify a group of cells, and the group of cells includes part or all of the multiple cells indicated by the association information.
  • the number of transmission position indexes of the SSB in a period is equal to the number of beams used by the SSB for transmitting the cell.
  • the second node can determine the SSB transmission configuration used by the cell according to the characteristics of the cell.
  • the frequency information of the cell includes: one or two of the center frequency of the cell or the frequency range of the cell; the transmission frequency domain position of the SSB includes the frequency information of the SSB A transmission center frequency point, where the transmission center frequency point of the SSB is located in the frequency range of the cell.
  • the second node can determine the SSB transmission configuration used by the cell according to the characteristics of the cell.
  • the waveform parameter supported by the cell includes one or more of the subcarrier interval supported by the cell or the cyclic prefix type supported by the cell.
  • the transmission subcarrier interval of the SSB belongs to the subcarrier interval supported by the cell.
  • the second node can determine the SSB transmission configuration used by the cell according to the characteristics of the cell.
  • the cell of the first node is a cell that the first node provides services to a subordinate node or a terminal.
  • the SSB is used for the initial access of the terminal, the transmission frequency domain position of the SSB includes the transmission center frequency of the SSB, and the transmission center frequency of the SSB is located in the synchronization grid sync- raster. In this way, the terminal can search the cell of the first node when accessing.
  • the cell configuration of the first node further includes: time division duplex TDD resource configuration and/or random access channel RACH configuration.
  • the processing module is further configured to determine the system information of the cell of the first node according to the cell configuration of the first node.
  • the system message of the cell of the first node includes the remaining minimum system message RMSI or SIB1.
  • an embodiment of the present application provides an apparatus, the apparatus includes a communication interface and a processor, and the communication interface is used for communication between the apparatus and other devices, for example, data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be the second node.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the first aspect.
  • the device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes the instructions or data stored in the memory, the method described in the first aspect can be implemented.
  • an embodiment of the present application provides a device, the device includes a communication interface and a processor, and the communication interface is used for communication between the device and other devices, for example, data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and the other device may be the first node, such as an IAB node.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the second aspect.
  • the device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes the instructions or data stored in the memory, the method described in the second aspect can be implemented.
  • an embodiment of the present application provides a device that includes a communication interface and a processor, and the communication interface is used for communication between the device and other devices, such as data or signal transmission and reception.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface
  • the other device may be the first node, such as an IAB node.
  • the processor is used to call a set of programs, instructions or data to execute the method described in the third aspect.
  • the device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes the instructions or data stored in the memory, the method described in the third aspect can be implemented.
  • the embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores computer-readable instructions.
  • the computer can execute The method described in one aspect or any possible design of the first aspect.
  • an embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any possible design in the second aspect or the second aspect The method described.
  • the embodiments of the present application also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any possible design in the third aspect or the third aspect The method described.
  • an embodiment of the present application provides a chip system, which includes a processor and may also include a memory, configured to implement the foregoing first aspect or any one of the possible designs of the first aspect. method.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the above-mentioned second aspect or any one of the possible designs of the second aspect. method.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • the embodiments of the present application provide a chip system, which includes a processor and may also include a memory, which is used to implement the above-mentioned third aspect or any one of the possible designs of the third aspect. method.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute as described in the first aspect or any one of the possible designs in the first aspect Or implement the method described in the second aspect or any one of the possible designs of the second aspect, or implement the method described in the third aspect or any one of the possible designs of the third aspect.
  • an embodiment of the present application provides a system, which includes the device described in the fourth aspect and the device described in the fifth or sixth aspect.
  • FIG. 1 is a schematic diagram of the architecture of a communication system in an embodiment of the application
  • Figure 2a is a schematic diagram of the structure of an IAB node in an embodiment of the application.
  • Figure 2b is a schematic diagram of a DU multi-cell structure in an embodiment of the application.
  • FIG. 3 is a schematic flowchart of a method for determining a cell configuration in an embodiment of the application
  • Figure 4 is one of the schematic diagrams of the device structure in an embodiment of the application.
  • Fig. 5 is the second schematic diagram of the device structure in the embodiment of the application.
  • the embodiments of the present application provide a method and device for determining a cell configuration, which are used to implement cell-level configuration of a relay node, for example, a cell-level synchronization signal sending configuration.
  • the method and the device are based on the same technical idea. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • "and/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist at the same time. There are three cases of B.
  • the character "/" generally indicates that the associated objects are in an "or” relationship. At least one involved in the embodiments of the present application refers to one or more; multiple refers to two or more than two.
  • words such as “first” and “second” are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, and cannot be understood. To indicate or imply order.
  • the method for determining the cell configuration provided in the embodiments of this application can be applied to the Internet of Things (IoT) system, the Internet of Vehicles, the 5th generation (5G) communication system, or various future communication systems.
  • IoT Internet of Things
  • 5G 5th generation
  • 6G 6th generation
  • 5G can also be called NR.
  • the nodes mentioned in the embodiments of the present application may be nodes in the various communication systems mentioned above, and the nodes may also be referred to as network devices.
  • the node may be a relay device, or a relay node (RN), a relay transmission and reception point (rTRP), or an IAB node.
  • RN relay node
  • rTRP relay transmission and reception point
  • IAB node in the NR system can be used as an example to illustrate the method of the embodiment of the present application. It can be understood that the described method can be applied to other communication systems or other nodes, and all fall within the protection scope of the present application.
  • FIG. 1 shows the architecture of a possible communication system to which the embodiments of the present application are applicable.
  • the communication system 100 may include one or more IAB nodes.
  • One of the nodes included in the communication system 100 may be a donor node.
  • the communication system 100 may include an IAB node 101, an IAB node 102, an IAB node 103, and a donor node 104.
  • the donor node 104 is a network device that can provide services for the IAB node, including providing wireless backhaul functionality for the IAB node, and providing core network interfaces for the IAB node and the terminals under the IAB node.
  • the IAB node is a layer two relay and does not have high-level functions such as RRC. Therefore, the high-level functions of the terminal and the mobile terminal (MT) module of the IAB node need to be provided by the donor node.
  • the upper node of the IAB node and the donor node are the same network device.
  • the communication system 100 may also include a terminal 110. It should be understood that the communication system 100 may include more or fewer nodes.
  • the IAB node can communicate with the parent node or the child node.
  • the parent node may also be called an upper node or an upstream node, and the child node may also be called a lower node or a downstream node.
  • the upper node can be a normal base station or other IAB nodes; the lower node can be a normal terminal or other IAB nodes.
  • IAB node includes two parts, which are used to implement functions similar to base stations and functions similar to terminals.
  • the IAB node may include two parts: an MT and a distributed unit (DU).
  • the MT is used to implement a functional module similar to an ordinary terminal, and is used to communicate with an upper-level node, for example, sending uplink (UL) data to an upper-level node, and receiving downlink (DL) data from an upper-level node.
  • the DU is a functional module similar to a common base station, and is used to communicate with subordinate nodes, for example, sending downlink (DL) data to subordinate nodes and receiving uplink (UL) data from subordinate nodes.
  • the link between the MT and the upper-level node can be called the parent BH link; the link between the DU and the lower-level node can be called the child BH link.
  • the link through which the DU communicates with the terminal may be called an access link.
  • the lower-level backhaul link can also be referred to as an access link.
  • the lower-level backhaul link between the IAB node 101 and the IAB node 102 can also be regarded as the access link for the IAB node 102. .
  • the upper-level backhaul link and the lower-level backhaul link are collectively referred to as wireless backhaul links or wireless backhaul links.
  • IAB nodes 101 to 103 are all connected to the network through wireless backhaul links.
  • an IAB node is connected to an upstream node.
  • multiple upstream nodes may provide for one IAB node at the same time. service.
  • the IAB node is not limited to whether it is a network node or a UE.
  • D2D device-to-device
  • the UE can act as a relay node to serve other UEs.
  • the IAB node is a specific name of a relay node, which does not limit the solution of this application. It may be a network device or terminal device with a forwarding function, or it may be an independent device form. In this application, IAB node can generally refer to any node or device with a relay function. For example, the IAB node may be a module or device set on a mobile object, which includes but is not limited to devices in the Internet of Things, such as cars, trains, and airplanes.
  • the above-mentioned network equipment includes but is not limited to: evolved node B (evolved node base, eNB), radio network controller (RNC), node B (node B, NB), base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home node B, HNB), baseband unit (BBU), eLTE (evolved LTE, eLTE) base station, NR base station (next generation node B, gNB) or the base station of the next generation communication system.
  • eNB evolved node B
  • RNC radio network controller
  • node B node B
  • base station controller base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or home node B, HNB
  • BBU baseband unit
  • eLTE evolved LTE, eLTE
  • NR base station next generation node B
  • the parent node 103 can also communicate with the parent node of the parent node 103 through the superior backhaul link, and so on, until the donor node 104.
  • the aforementioned terminal may be a user equipment (UE), a mobile station (MS), or a mobile terminal (MT), etc. It is a device that provides users with voice or data connectivity, or it may be IoT devices.
  • the terminal can be a stationary or mobile device.
  • the mobile device can be a mobile phone, a smart terminal, a tablet, a laptop, a video game console, a multimedia player, or even a mobile or stationary IAB node.
  • Stationary devices are usually located in fixed locations, such as computers, access points (connected to the network via wireless links, such as IAB nodes), and so on.
  • a terminal device can be a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as aircraft, Balloons and satellites are classy).
  • the terminal device may be a user equipment (UE), where the UE includes a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, or a computing device.
  • the UE may be a mobile phone, a tablet computer, or a computer with wireless transceiver function.
  • Terminal equipment can also be virtual reality (VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in telemedicine, and smart Wireless terminals in power grids, wireless terminals in smart cities, and wireless terminals in smart homes.
  • VR virtual reality
  • AR augmented reality
  • the description of the embodiments of the present application may take the UE as an example to illustrate the method implemented by the terminal.
  • primary synchronization signal primary synchronization signal
  • secondary synchronization signal secondary synchronization signal
  • physical broadcast channel physical broadcast channel, PBCH
  • synchronization signal/broadcast signal block synchronization signal/ PBCH block, SS/PBCH block.
  • SSB synchronization signal/PBCH block
  • one SSB contains four orthogonal frequency division multiplexing (OFDM) symbols.
  • the UE jointly determines the SSB block index (block index) through different DM-RS sequences and the index number (index) transmitted in the PBCH to identify different SSBs.
  • the specific method for determining the block index of the SSB is well-known to those of ordinary skill in the art, and will not be repeated.
  • the synchronization signal is transmitted by beam scanning.
  • the NR base station will send multiple SSBs in one cycle, each SSB covers a certain area, and each SSB is sent at the position of the SSB candidates (candidates) defined by the protocol. All SSB candidates are within one half frame (5 milliseconds).
  • the position of the SSB candidates refers to the position of the symbol in the time domain, which will not be described in detail below.
  • the number of SSB candidates (candidates) in a half frame is different. Specifically, below 3 GHz (gigahertz, GHz), the number of SSB candidates is 4. Above 3GHz and in the FR1 frequency band, the number of SSB candidates is 8. And above 6GHz, the number of SSB candidates is 64.
  • the base station can transmit multiple SSBs in a frequency division manner.
  • the SSB sent by the base station repeats periodically, and the period size is configurable. For the SSB used for UE access, the period is typically 20 milliseconds (millisecond, ms). Specifically include the following 5 cases:
  • case A For 15KHz subcarrier spacing, send according to ⁇ 2,8 ⁇ +14*n, where ⁇ 2,8 ⁇ +14*n represents the index of the first symbol of SS/PBCH Block, that is, the position, the same as below ,No longer.
  • the position of the SS/PBCH Block within a synchronization signal period is traversed by the above formula for the above value of n, which is the same below, and will not be repeated.
  • the above five cases are candidate positions for SSB transmission or measurement in a half frame when the subcarrier interval is different, and the candidate position refers to a time domain position in a half frame, such as a symbol index.
  • the number of SSBs sent by a base station or network node in a half frame may be less than the number of SSB candidate positions.
  • the SSB sent by its DU includes at least two types: access link SSB (Access link SSB, AC-SSB) and backhaul link SSB (backhaul link SSB, BH-SSB).
  • AC-SSB is the SSB that the UE can search for during initial access, and some AC-SSBs are called CD-SSB (cell-defining SSB).
  • CD-SSB the UE can determine the remaining minimum system information (remaining minimum system information, RMSI) control resource set (control resource set, CORESET) and search space (search space) through the content of its physical broadcast channel (PBCH). space) collection, and then obtain the system information of the cell associated with the SSB.
  • BH-SSB is an SSB used for IAB nodes to perform mutual measurements.
  • the DU cell of each IAB node can have multiple SSB transmission configurations.
  • BH-SSB is configured by donor node (or donor node CU).
  • AC-SSB may be configured by the donor node, or it may be generated by the IAB node itself.
  • the DU of the IAB node may have multiple cells.
  • an IAB node may have multiple antenna panels or sectors with different orientations, where one panel or sector corresponds to one cell, then multiple panels or sectors correspond to multiple cells.
  • an IAB node includes MT and DU, and DU includes three sub-modules, corresponding to three cells, which are represented by cell#0, cell#1, and cell#2.
  • the DU of the IAB node may include more or fewer cells.
  • the IAB node DU can use carrier aggregation technology, and different carriers correspond to different cells.
  • the embodiments of the present application may provide cell configuration for the IAB node.
  • the cell configuration includes some configurations of the cells under the IAB node, such as signal transmission configuration and/or time-frequency resource configuration.
  • the cell configuration includes the SSB transmission configuration of the cell, the time domain duplex (TDD) resource configuration or the random access channel (RACH) configuration of the cell.
  • TDD time domain duplex
  • RACH random access channel
  • the execution subject is the first node and the second node.
  • the explanation of the concepts of the first node and the second node can refer to the above-mentioned explanation of the node.
  • the node is an IAB node as an example.
  • the second node is an upper node or parent node of the first node, or the second node is a donor node.
  • the communication between the first node and the donor node may require the forwarding of other nodes.
  • the first node sends a message to the donor node, and the message may be forwarded to the donor node through one or more nodes.
  • the donor node sends a message to the first node, and the message can be forwarded to the first node through one or more nodes.
  • Any one or more steps in the process shown in FIG. 3 can form a solution that needs to be protected in this application.
  • S301 and S303 can form a solution, and the operation performed by the first node in S304 can be Select steps.
  • the first node sends the first information to the second node, and the second node receives the first information from the first node.
  • the DU of the first node has one or more cells, and you can refer to the description of multiple cells in FIG. 2b.
  • the cell of the first node is a cell that the first node provides services to subordinate nodes or terminals.
  • the first information is used to indicate cell information of the first node, that is, information of one or more cells of the first node.
  • the cell information of the first node is used for the cell configuration of the first node by the second node.
  • the first node After the first node accesses the network, it reports the cell information of the first node to the parent node or donor node of the first node.
  • the cell information may also be referred to as cell parameters, and the cell information may be some parameters or information related to the cell of the node.
  • the cell information of the first node includes the information of any cell under the first node, and also includes the associated information of multiple cells of the first node, which will be described in detail below.
  • the cell configuration is the SSB transmission configuration as an example, and the method for determining the cell configuration provided in the embodiments of the present application is described in detail.
  • the IAB nodes When there are multiple IAB nodes in the network, the IAB nodes need to discover or measure each other for purposes such as establishing multiple connections, maintaining backup connections, or interference measurement.
  • the IAB node needs to send the SSB for the access of the terminal device attached to the IAB node, or for the discovery and measurement of other IAB nodes.
  • the cell information of any cell under the first node may be some parameters related to the SSB that sends the cell.
  • the information of any cell under the first node includes one or more of the following:
  • the cell identifier can be used to indicate which cell the cell information is used to describe, and there can be multiple types of identifiers.
  • the first type local cell identity or logical cell identity. For example, if the DU of an IAB node contains 3 cells, the identifiers can be 0, 1, and 2, respectively.
  • the local cell identity can be determined by the IAB node itself, or by an upper-level node or a donor node.
  • the confirmation method of the local cell identity can also be directly defined by the protocol.
  • the second type Physical-layer cell identity (PCI).
  • PCI Physical-layer cell identity
  • NR has 1008 different physical cell identities.
  • the physical cell identity can be determined by the IAB node, or can be obtained according to the donor node configuration.
  • the IAB node reports the number of PCIs it needs, the donor node allocates a corresponding number of PCIs to the IAB node, and the allocated PCI serves as the cell identifier.
  • the third type cell global identity (CGI).
  • the first node may send one type of cell identifier to the second node, or may send multiple types of cell identifiers.
  • the IAB node can report the local cell identity and the physical cell identity to the superior node or the donor node, or the IAB node can report the global cell identity to the superior node or the donor node.
  • the cell identifier can be for a specific cell, and the cell identifier is used to indicate that the cell information is used to describe this specific cell; or, the cell identifier can also be for multiple cells, which means that the cell information is used to describe the multiple cells. Community.
  • the SSB here may be the SSB sent by the IAB node DU cell, and the number of beams used by the SSB of the sending cell refers to the number of beams that the DU cell can use for sending the SSB.
  • a cell of the first node (including the IAB node DU) can transmit at most L SSBs in a certain period of time, where each SSB can use one beam, and the L SSBs use L beams.
  • the certain time is 5ms. Therefore, the number of beams here corresponds to the number of SSBs that the DU cell needs to send within 5ms.
  • L has different values.
  • 5G NR mainly uses two frequencies, FR1 and FR2.
  • FR2 is only an exemplary term for high frequency, and the parameter configuration method of FR2 may be applicable to other frequency bands, such as the frequency band between FR1 and FR2.
  • the frequency information of the cell may be the center frequency of the cell, or the frequency range of the cell, or include both the center frequency of the cell and the frequency range of the cell.
  • the frequency information of the cell can be used to determine the SSB transmission configuration of the cell.
  • the SSB transmission configuration of the cell includes the transmission center frequency of the SSB of the cell.
  • the transmission center frequency of the SSB of the cell needs to be set within the frequency range of the cell.
  • the waveform parameter supported by the cell may be the subcarrier interval supported by the cell, or the cyclic prefix type supported by the cell, or both the subcarrier interval supported by the cell and the cyclic prefix type supported by the cell.
  • the cell information of the first node may also include other information.
  • the cell information may be used by the second node to determine the SSB transmission configuration of the cell of the first node.
  • the SSB may be used for the initial access of the terminal, but some cells of the IAB node DU may not need or want the terminal to perform the initial access. Therefore, the cell information may also include whether the configuration of the SSB for initial access of the terminal is required. If the configuration for the first cell in the cell information is "Yes", it means that the SSB transmission configuration of the first cell needs to include the configuration of the SSB dedicated to the terminal's initial access, otherwise it is not required.
  • the following describes the association information of the multiple cells of the first node.
  • the association information of the multiple cells of the first node may be one or more of the following situations.
  • the multiple cells of the first node refer to multiple cells under the DU of the first node.
  • the cell of the first node may also be referred to as a DU cell.
  • Multiple cells under the same DU may include the following association relationships: multiple cells under the same DU may share an antenna panel; or multiple cells may have the same antenna orientation; or multiple cells may be co-located; or more Two cells are quasi co-located; or multiple cells have close frequency bands, such as carrier aggregation; or multiple cells have the same PCI.
  • the first node is an IAB node
  • multiple cells under the same DU with an association relationship can share the SSB or share the remaining reference signals.
  • multiple cells under the same DU that have an association relationship include cell A, cell B, and cell C.
  • Shared SSB means that the SSB measurement result of cell A by other devices except the first node can be used to derive information such as the signal quality of cell B or cell C.
  • the other devices except the first node may be IAB nodes or terminal devices.
  • the IAB node reports that its multiple DU cells have an association relationship it means that the IAB node assumes that the measurement result of one of the DU cells by other devices can be used to derive information such as the signal quality of its associated DU cell.
  • multiple DU cells that have an association relationship have the same resource reuse type as the MT.
  • the resource reuse types here include time division multiplexing, frequency division multiplexing, space division multiplexing and full duplex. work. For example, when multiple cells of MT and DU have the same antenna orientation, their resources may be time division multiplexed; and when multiple cells of MT and DU have different antenna orientations, their resources may be Time division multiplexing or space division multiplexing.
  • the first node may group the multiple cells of the first node, and the subdivisions having the association relationship are in a group, and each group has a group identifier. Therefore, the first node can implicitly report the association relationship of DU cells by grouping cells. Specifically, the first node groups multiple cells of its DU, and multiple cells in the same group have an association relationship.
  • the cell information of the first node further includes a cell group identifier, the cell group identifier is used to identify multiple cells, and cells with the same cell group identifier belong to the same cell group.
  • the association information of the cell may be grouping information of the cell.
  • the cell information of the first node may include more or less information based on the information in the foregoing examples. For example, if the PCI in the cell identity of the first node is configured by the second node, the first node does not need to report the PCI in the cell information.
  • the cell information may also include isolation information between multiple beam pairs of the IAB node.
  • the information reported by the first node to the second node can be transmitted through air interface signaling such as RRC, or through interface messages such as F1-AP.
  • part of the above cell information is sent to the second node by the remaining network equipment, and the remaining network equipment may be other base stations, such as the remaining gNB, eNB, or IAB nodes, or core network equipment or network equipment.
  • Meta such as operation and maintenance server (operation, administration, and maintenance, OAM).
  • the second node determines the cell configuration of the first node.
  • the cell configuration of the first node may include SSB transmission configuration (SS/PBCH block transmission configuration, STC), time division duplex (time division duplexing, TDD) resource configuration, or random access channel (random access channel, RACH) configuration.
  • STC SS/PBCH block transmission configuration
  • TDD time division duplexing
  • RACH random access channel
  • the SSB transmission configuration is used to indicate the SSB transmission configuration of the cell of the first node.
  • the first node is an IAB node, and the SSB described in the SSB sending configuration may include: an SSB used for mutual measurement between IAB nodes or an SSB used for terminal access.
  • the related scheme of SSB sending configuration in the embodiment of this application can be extended to the channel state Information reference signal (channel state information-reference signal, CSI-RS) signal transmission configuration solution.
  • CSI-RS channel state Information reference signal
  • the cell configuration of the first node may also include other configurations related to the multi-cell architecture of the first node.
  • the multi-cell architecture refers to the architecture of multiple cells under the first node, and the second node can be based on the first node reported by the first node.
  • the cell configuration determined by the information belongs to the scope to be protected by the embodiments of the present application.
  • the second node sends second information to the first node, and the first node receives the second information from the second node.
  • the second information is used to indicate the cell configuration of the first node to the first node.
  • the second node After receiving the first information sent by the first node, the second node determines the cell configuration of the first node according to the cell information of the first node indicated by the first information.
  • the cell information of the first node is the information of one or more cells of the first node.
  • the cell information of the first node received by the second node may be cell information for each cell.
  • the second node determines the SSB transmission configuration of the cell according to the corresponding cell information.
  • the first node may report the cell information of some or all of the cells under the first node.
  • the second node may also perform cell-level SSB transmission configuration on part or all of the cells of the first node.
  • the second node can determine one SSB transmission configuration for the multiple cells, and the multiple cells with association relationships can use the same SSB transmission configuration, that is, use the same SSB transmission configuration.
  • Configure to send SSB For example, the cell information of the first node indicates the association information between the first cell and the second cell. The first cell and the second cell have the same antenna orientation, and the second node is in the SSB transmission configuration sent to the first node. Instruct the first cell and the second cell to share the same SSB transmission configuration.
  • the second node may perform the same SSB transmission configuration for the cells in the same group. In this way, there is no need to separately configure the SSB transmission for each of the multiple associated cells. On the one hand, it saves the overhead of the SSB transmission configuration and on the other hand saves the SSB transmission resources.
  • the second node may determine a set of SSB transmission configuration for the multiple associated cells, and this set of SSB transmission configuration only applies In one of the districts.
  • the second node only sends the SSB transmission configuration to multiple associated cells or a part of cells (for example, one cell) in a cell group.
  • the SSB here includes one or more of the following signals: SSB used for mutual measurement of IAB nodes, and SSB used for terminal access.
  • multiple associated cells can share common SSB transmission configuration, and associated DU cells can share SSB. Therefore, configuring SSB only for some cells can reduce the resource overhead of IAB node DU without affecting measurement performance.
  • the SSB sending configuration is used to indicate what parameters the first node uses when sending the SSB of the cell, or how to send the SSB of the cell.
  • the SSB sending configuration can include one or more of the following information:
  • the cell identity is the same as the cell identity exemplified in 1) in the cell information. Used to indicate which cell the SSB transmission configuration is for.
  • the cell identity can be for a specific cell, or of course, it can also be the identity of multiple cells, indicating that this set of SSB transmission configuration is applicable to these multiple cells.
  • the cell information reported by the first node may have associated information of multiple cells, and the cell group identifier is used to identify the associated cells in the same group, indicating that the cells in the cell group all use the SSB transmission configuration.
  • the group of cells identified by the cell group identifier includes part or all of the multiple cells indicated by the association information.
  • the transmission frequency domain position of the SSB is used to indicate the frequency domain position occupied by the first node in sending the SSB for the cell, which can be represented by the transmission center frequency of the SSB.
  • the second node determines the transmission frequency domain position of the SSB of the cell according to the frequency range of the cell. For example, the SSB transmission center frequency of the cell should be within the frequency range of the cell, or the frequency range of the SSB transmission of the cell should not exceed the frequency range of the cell.
  • the cell information reported by the first node may indicate whether the configuration of the SSB for the terminal's initial access is required.
  • the second node indicates to the first node that the SSB transmission frequency domain position in the SSB transmission configuration also needs to meet the following characteristics.
  • the SSB frequency domain position is represented by the center frequency point of the SSB, and the center frequency point of the SSB is located in the sync-raster ). In this way, the terminal can search the cell of the first node when accessing.
  • the second node may carry an indication in the SSB transmission configuration sent to the first node, and the indication is used to instruct the SSB to send the SSB configured for the cell used as the initial access of the terminal.
  • the second node determines the SSB sending subcarrier spacing according to the information about the subcarrier spacing supported by the cell.
  • the information of the subcarrier spacing supported by the cell is used to indicate the subcarrier spacing supported by the cell.
  • the transmission subcarrier interval of the SSB belongs to one of the subcarrier intervals supported by the cell.
  • the SSB is only sent at certain symbol positions in a half frame in a period, and the transmission position index of the SSB in the period generally refers to the position index in the half frame of a period.
  • the SSB transmission configuration is based on the above example, and may also include more or less information.
  • S304 may also be included.
  • S304 The first node sends the SSB of the cell according to the SSB sending configuration.
  • the first node sends the SSB of the cell according to the SSB sending configuration corresponding to the cell.
  • the first node sends the SSB of the cell according to the SSB transmission configuration for the multiple cells that use the same transmission configuration.
  • the cell configuration takes the SSB sending configuration as an example to illustrate the possible manifestations of cell information and SSB sending configuration.
  • the following examples of manifestations can be applied to the above cell configuration In the determination method, but not as a limitation to this application.
  • the IAB node will send the cell information of multiple cells under the DU of the IAB node to the superior node or the donor node.
  • the cell information expression form of the multiple cells may be as follows.
  • ARFCN-ValueNR is the absolute radio frequency channel number (ARFCN) specified in the NR protocol.
  • ARFCN-ValueNR can indicate radio frequency information.
  • its range is [0...3279165], which corresponds to 3279166 frequency domain grid information from 0MHz to 100000Mhz.
  • the X and Y of the frequency range can be selected from 3279166 frequency domain grid information, and the center frequency point Z can also be selected from 3279166 frequency domain grid information. In practical applications, one of the frequency range and the center frequency can be reported, or both can be reported.
  • the u1 and u2 in 2 ⁇ u1*15KHz or 2 ⁇ u2*15KHz are the parameters used to determine the subcarrier spacing.
  • the values of the low frequency band u1 and u2 of the 5G system include: 0, 1, or 2
  • the values of and u2 include: 2, 3, or 4.
  • the index position for sending the SSB can take one or more values in [b_0, b_1,..., b_M-1].
  • the number of SSB beams indicates the number of beams used by the SSB of the transmitting cell.
  • the supported SSB transmission case can be one or more cases selected from multiple cases defined by the protocol.
  • AC-SSB indicates the SSB used for the initial access of the terminal, and whether AC-SSB configuration is required indicates whether the configuration of the SSB used for the initial access of the terminal needs to be configured.
  • the upper node or donor node of the IAB node After the upper node or donor node of the IAB node receives the cell information of multiple cells under the DU of the IAB node sent by the IAB node, it will determine the SSB transmission configuration of each cell according to the cell information of the multiple cells.
  • the possible manifestations of SSB sending configuration are as follows.
  • ARFCN-ValueNR can indicate radio frequency information.
  • its range is [0...3279165], which corresponds to 3279166 frequency domain grid information from 0MHz to 100000Mhz.
  • the SSB center frequency can also be selected from 3279166 frequency domain grid information.
  • the parameters configured for the SSB transmission of a certain cell may be any value in the example corresponding to each parameter in the above table.
  • the SSB sending configuration parameters are not limited to the examples in the above table.
  • the superior node or donor node of the IAB node sends the SSB sending configuration to the IAB node, and the donor node sends the SSB sending configuration to the IAB node as an example.
  • the SSB used for the initial access of the terminal or user sent by the IAB node DU is also configured by the donor node.
  • the SSB used for the initial access of the terminal or user is recorded as AC-SSB.
  • the SSB transmission configuration sent by the donor node may include the purpose of the SSB.
  • the SSB transmission configuration specifies that the configuration is used for AC-SSB or cell-defining SSB.
  • the transmission center frequency of the SSB where the SSB sends the configuration indication should be located in the sync-raster defined by NR to ensure user access It can be searched.
  • the cell configuration also includes TDD resource configuration and/or RACH configuration.
  • the SSB sending configuration, TDD resource configuration or RACH configuration can be indicated in one message or separately.
  • the donor node performs parameter configuration such as TDD resource configuration and/or RACH configuration for each cell based on the SSB sending configuration sent to the IAB node.
  • the TDD resource configuration and/or RACH configuration are similar to the SSB transmission configuration, and the configuration of which cell is used is distinguished by the cell identifier or the cell group identifier.
  • the TDD resource configuration and/or the RACH configuration can be configured in the same configuration message as the SSB sending configuration, and the configuration of the cell granularity can be realized through the same cell identity or cell group identity.
  • the DU of the IAB node generates the remaining minimum system information (RMSI) or system information block (system information block, SIB) corresponding to each cell under the DU according to the SSB transmission configuration, TDD resource configuration and/or RACH configuration. )1. Specifically, the IAB node sends the generated RMSI to the donor node, and the donor node converts it into an RRC message and sends it to the DU of the IAB node.
  • RMSI remaining minimum system information
  • SIB system information block
  • the information carried by the PBCH and/or remaining minimum system information (RMSI) or SIB1 sent by the DU should be generated by the DU, but the STC, TDD resource configuration, and RACH configuration are all generated by the donor. Therefore, the IAB DU should generate corresponding PBCH information and/or RMSI for each cell according to the above configuration information.
  • RMSI remaining minimum system information
  • the donor node indicates one or more STC configurations as AC-SSB, and generates the corresponding PBCH bearer and/or RMSI.
  • the generated RMSI needs to be sent to DONOR, and then converted into an RRC message by the donor and sent back to the DU. In this way, the contradiction between the centralized configuration requirements of STC and the RMSI generated by DU itself is resolved.
  • the methods provided by the embodiments of the present application are respectively introduced from the perspective of the first node, the host node, and the interaction between the first node and the host node.
  • the first node and the host node may include a hardware structure and/or a software module, and the above each can be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • Features. Whether one of the above-mentioned functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • an embodiment of the present application further provides an apparatus 400.
  • the apparatus 400 may be the first node or the second node mentioned above, or the first node or the second node. , Or a device that can be matched with the first node or the second node.
  • the device 400 may include a one-to-one corresponding module for executing the method/operation/step/action performed by the first node or the second node in the foregoing method embodiment.
  • the module may be a hardware circuit or software. It can also be realized by hardware circuit combined with software.
  • the device may include a processing module 401 and a communication module 402.
  • the communication module 402 is configured to send first information to a second node, where the first information is used to indicate information about one or more cells of the first node; and to receive second information from the second node The second information is used to indicate the cell configuration of the first node, where the cell configuration of the first node is determined according to the information of one or more cells of the first node.
  • the processing module 401 and the communication module 402 may also be used to execute other corresponding steps or operations performed by the first node in the foregoing method embodiment, which will not be repeated here.
  • the communication module 402 is configured to receive first information from a first node, where the first information is used to indicate information about one or more cells of the first node.
  • the processing module 401 is configured to determine the cell configuration of the first node according to the information of one or more cells of the first node.
  • the communication module 402 is further configured to send second information to the first node, where the second information is used to indicate the cell configuration of the first node.
  • the processing module 401 is configured to determine the cell configuration of the first node.
  • the communication module 402 is configured to send the cell configuration of the first node to the first node.
  • the processing module 401 and the communication module 402 may also be used to perform other corresponding steps or operations performed by the second node in the foregoing method embodiment, and details are not repeated here.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • an apparatus 500 provided by an embodiment of the application is used to implement the function of the first node or the second node in the above method.
  • the device may be the second node, may also be a device in the second node, or a device that can be matched and used with the second node.
  • the device may be the first node, or a device in the first node, or a device that can be matched and used with the first node.
  • the device may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the apparatus 500 includes at least one processor 520, configured to implement the function of the first node or the second node in the method provided in the embodiment of the present application.
  • the device 500 may also include a communication interface 510.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, which is used to communicate with other devices through a transmission medium.
  • the communication interface 510 is used for the device in the device 500 to communicate with other devices.
  • the apparatus 500 is the second node
  • the other device may be the first node.
  • the device 500 is the first node
  • the other device may be the second node.
  • the processor 520 uses the communication interface 510 to send and receive data, and is used to implement the method described in the foregoing method embodiment.
  • the communication interface 510 is used to receive first information from the first node, and the first information is used to indicate information about one or more cells of the first node.
  • the processor 520 is configured to determine the cell configuration of the first node according to the information of one or more cells of the first node.
  • the communication interface 510 is further configured to send second information to the first node, where the second information is used to indicate the cell configuration of the first node.
  • the processor 520 is configured to determine the cell configuration of the first node.
  • the communication interface 510 is configured to send the cell configuration of the first node to the first node.
  • the communication interface 510 is used to send first information to the second node.
  • the first information is used to indicate information about one or more cells of the first node, and used to send information from all
  • the second node receives second information, where the second information is used to indicate the cell configuration of the first node, where the cell configuration of the first node is based on the configuration of one or more cells of the first node
  • the information is certain.
  • the device 500 may also include at least one memory 530 for storing program instructions and/or data.
  • the memory 530 and the processor 520 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 520 may cooperate with the memory 530 to operate.
  • the processor 520 may execute program instructions stored in the memory 530. At least one of the at least one memory may be included in the processor.
  • the embodiment of the present application does not limit the specific connection medium between the aforementioned communication interface 510, the processor 520, and the memory 530.
  • the memory 530, the processor 520, and the communication interface 510 are connected by a bus 540 in FIG. 5.
  • the bus is represented by a thick line in FIG. 5, and the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 5 to represent, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or Perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), for example Random-access memory (random-access memory, RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function, for storing program instructions and/or data.
  • the output or reception of the communication module 402 and the communication interface 510 may be baseband signals.
  • the output or reception of the communication module 402 and the communication interface 510 may be radio frequency signals.
  • the embodiment of the present application provides a computer storage medium that stores a computer program, and the computer program includes instructions for executing the method for determining the cell configuration provided in the foregoing embodiment.
  • the embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the method for determining the cell configuration provided in the foregoing embodiments.
  • An embodiment of the present application also provides a chip, which includes a processor and an interface circuit, the interface circuit is coupled to the processor, and the processor is used to run a computer program or instruction to implement the above-mentioned method for determining cell configuration.
  • the circuit is used to communicate with other modules outside the chip.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, network equipment, user equipment, 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 transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, SSD).
  • the embodiments can be mutually cited.
  • methods and/or terms between method embodiments can be mutually cited, such as functions and/or functions between device embodiments.
  • Or terms may refer to each other, for example, functions and/or terms between the device embodiment and the method embodiment may refer to each other.

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Abstract

本申请公开了一种小区配置的确定方法及装置，用以实现对中继节点的小区级别的配置。该方法应用于节点，该节点可以为中继节点或中继设备，例如IAB节点，该节点记为第一节点，第二节点为第一节点的上级节点。该方法包括第一节点向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息，所述第一节点从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，小区配置也可以称为小区级别的配置，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的，例如可以是第二节点确定的该小区配置。

Description

一种小区配置的确定方法及装置
相关申请的交叉引用
本申请要求在2019年08月16日提交中国专利局、申请号为201910760413.2、申请名称为“一种小区配置的确定方法及装置”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
本申请实施例涉及通信技术领域，尤其涉及一种小区配置的确定方法及装置。
背景技术
随着移动通信技术的不断发展，频谱资源日趋紧张。为了提高频谱利用率，基站部署将会更加密集。在传统蜂窝网络架构下，基站通过光纤与核心网建立连接，无线中继节点(relay node,RN)通过无线回传链路与核心网建立连接，可节省部分光纤部署成本。带内中继是回传链路与接入链路共享相同频段的中继方案，由于没有使用额外的频谱资源，带内中继具有频谱效率高及部署成本低等优点。新无线(new radio，NR)的带内中继方案被称为一体化接入回传(integrated access and backhaul，IAB)，而中继节点被称为IAB节点(IAB node)。
IAB节点可能具有多个小区，每个小区具有不同的特性。如何进行IAB节点的小区配置成为亟待解决的问题。
发明内容
本申请实施例提供一种小区配置的确定方法及装置，用以实现对IAB节点的小区配置。
本申请实施例提供的具体技术方案如下：
第一方面，提供一种小区配置的确定方法，该方法的执行主体为节点，可以记为第一节点。第一节点可以是IAB节点或中继节点或任意中继设备。该方法包括以下步骤：第一节点向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；所述第一节点从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的。通过第一节点向第二节点上报的小区的信息，能够辅助第二节点确定合适的小区级别的配置，由于第一节点的各个小区具有不同的特性，因此通过指示小区配置，第一节点能够获得每个小区的配置，从而可以更好的实现小区级别的数据传输或者信号发送或接收。
第二方面，提供一种小区配置的确定方法，该方法的执行主体为节点，可以记为第二节点。第二节点可以是IAB节点或中继节点或任意中继设备。该方法包括以下步骤：第二节点从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；第二节点根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置；所述第二节点向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的 小区配置。通过从第一节点接收的小区的信息，能够辅助第二节点确定合适的小区级别的配置，由于第一节点的各个小区具有不同的特性，因此通过指示小区配置，第一节点能够获得每个小区的配置，从而可以更好的实现小区级别的数据传输或者信号发送或接收。
第三方面，提供一种小区配置的确定方法，该方法的执行主体为节点，可以记为第二节点。第二节点可以是IAB节点或中继节点或任意中继设备。该方法包括以下步骤：第二节点确定第一节点的小区配置；所述第二节点向所述第一节点发送所述第一节点的小区配置。由于第一节点的各个小区具有不同的特性，因此通过指示小区配置，第一节点能够获得每个小区的配置，从而可以更好的实现小区级别的数据传输或者信号发送或接收。
在一个可能的设计中，所述第二节点从所述第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；所述第二节点根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置。通过从第一节点接收的小区的信息，能够辅助第二节点确定合适的小区级别的配置。
在一个可能的设计中，所述第一信息包括以下一项或多项：小区标识、发送小区的SSB采用的波束数目、小区的频率信息、小区支持的波形参数或所述第一节点的多个小区的关联信息。这样通过多个小区的关联信息，第二节点不用为具有关联的多个小区中的每一个小区单独进行小区配置，节省小区配置的开销。
结合上述第一方面、第二方面、第三方面和第三方面的任一种可能的设计，本申请实施例还提供以下可能的设计或实现方式。具体如下所述。
在一个可能的设计中，所述第一节点的小区配置包括同步信号物理广播信号块SSB发送配置；所述第一节点根据所述SSB发送配置发送小区的SSB。通过该方法能够实现小区级别的SSB发送配置。
在一个可能的设计中，所述第一节点的小区信息还包括所述第一节点支持的小区的数目。
在一个可能的设计中，所述第一信息包括以下一项或多项：小区标识、发送小区的SSB采用的波束数目、小区的频率信息、小区支持的波形参数或所述第一节点的多个小区的关联信息。这样通过上报多个小区的关联信息，使得第二节点不用为具有关联的多个小区中的每一个小区单独进行小区配置，节省小区配置的开销。
在一个可能的设计中，所述第一节点的多个小区的关联信息，包括：所述多个小区共享天线面板，或所述多个小区朝向相同，或所述多个小区共址，所述多个小区准共址，多个小区采用载波聚合或所述多个小区具有相同的物理小区标识PCI。
在一个可能的设计中，所述参考信号发送配置包括：所述小区标识、小区组标识、SSB的发送频域位置、SSB的发送子载波间隔、SSB的发送周期、SSB的发送偏移量或者SSB在周期内的发送位置索引；其中，所述小区组标识用于标识一组小区，所述一组小区包括所述关联信息指示的所述多个小区的部分或全部。
在一个可能的设计中，所述SSB在周期内的发送位置索引的数目等于所述发送所述小区的SSB采用的波束数目。这样，能够使得第二节点根据小区的特性，确定小区所用的SSB发送配置。
在一个可能的设计中，所述小区的频率信息包括：所述小区的中心频点或所述小区的频率范围中的一项或两项；所述SSB的发送频域位置包括所述SSB的发送中心频点，所述SSB的发送中心频点位于所述小区的频率范围。这样，能够使得第二节点根据小区的特 性，确定小区所用的SSB发送配置。
在一个可能的设计中，所述小区支持的波形参数包括小区支持的子载波间隔或小区支持的循环前缀类型中的一项或多项。
在一个可能的设计中，所述SSB的发送子载波间隔属于所述小区支持的子载波间隔。这样，能够使得第二节点根据小区的特性，确定小区所用的SSB发送配置。
在一个可能的设计中，所述第一节点的小区为所述第一节点向下级节点或向终端提供服务的小区。
在一个可能的设计中，所述SSB用于终端的初始接入，所述SSB的发送频域位置包括所述SSB的发送中心频点，所述SSB的发送中心频点位于同步栅格sync-raster。这样终端在接入时可对第一节点的该小区进行搜索。
在一个可能的设计中，所述第一节点的小区配置还包括：时分双工TDD资源配置和/或随机接入信道RACH配置。
在一个可能的设计中，所述第一节点根据所述第一节点的小区配置，确定所述第一节点的小区的系统消息。
可选的，所述第一节点的小区的系统消息包括剩余最小系统消息RMSI或SIB1。
第四方面，提供一种装置，该装置可以是节点，记为第一节点，也可以是位于节点中的装置，或者是能够和节点匹配使用的装置。一种设计中，该装置可以包括执行第一方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置可以包括处理模块和通信模块。处理模块用于调用通信模块执行接收和/或发送的功能。示例性地：
通信模块，用于向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；以及用于从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的。通过第一节点向第二节点上报的小区的信息，能够辅助第二节点确定合适的小区级别的配置，由于第一节点的各个小区具有不同的特性，因此通过指示小区配置，第一节点能够获得每个小区的配置，从而可以更好的实现小区级别的数据传输或者信号发送或接收。
第五方面，提供一种装置，该装置可以是节点，记为第二节点，也可以是位于节点中的装置，或者是能够和节点匹配使用的装置。一种设计中，该装置可以包括执行第二方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置可以包括处理模块和通信模块。处理模块用于调用通信模块执行接收和/或发送的功能。示例性地：
通信模块用于从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；处理模块用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置；通信模块还用于向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的小区配置。通过从第一节点接收的小区的信息，能够辅助第二节点确定合适的小区级别的配置，由于第一节点的各个小区具有不同的特性，因此通过指示小区配置，第一节点能够获得每个小区的配置，从而可以更好的实现小区级别的数据传输或者信号发送或接收。
第六方面，提供一种装置，该装置可以是节点，记为第二节点，也可以是位于节点中 的装置，或者是能够和节点匹配使用的装置。一种设计中，该装置可以包括执行第三方面中所描述的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置可以包括处理模块和通信模块。处理模块用于调用通信模块执行接收和/或发送的功能。
示例性地，处理模块用于确定第一节点的小区配置；通信模块用于向所述第一节点发送所述第一节点的小区配置。由于第一节点的各个小区具有不同的特性，因此通过指示小区配置，第一节点能够获得每个小区的配置，从而可以更好的实现小区级别的数据传输或者信号发送或接收。
在一个可能的设计中，所述通信模块还用于从所述第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；所述处理模块还用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置。通过从第一节点接收的小区的信息，能够辅助第二节点确定合适的小区级别的配置。
在一个可能的设计中，所述第一信息包括以下一项或多项：小区标识、发送小区的SSB采用的波束数目、小区的频率信息、小区支持的波形参数或所述第一节点的多个小区的关联信息。这样通过多个小区的关联信息，第二节点不用为具有关联的多个小区中的每一个小区单独进行小区配置，节省小区配置的开销。
结合上述第四方面、第五方面、第六方面和第六方面的任一种可能的设计，本申请实施例还提供以下可能的设计或实现方式。具体如下所述。
在一个可能的设计中，所述第一节点的小区配置包括同步信号物理广播信号块SSB发送配置；所述第一节点根据所述SSB发送配置发送小区的SSB。通过该方法能够实现小区级别的SSB发送配置。
在一个可能的设计中，所述第一节点的小区信息还包括所述第一节点支持的小区的数目。
在一个可能的设计中，所述第一信息包括以下一项或多项：小区标识、发送小区的SSB采用的波束数目、小区的频率信息、小区支持的波形参数或所述第一节点的多个小区的关联信息。这样通过上报多个小区的关联信息，使得第二节点不用为具有关联的多个小区中的每一个小区单独进行小区配置，节省小区配置的开销。
在一个可能的设计中，所述第一节点的多个小区的关联信息，包括：所述多个小区共享天线面板，或所述多个小区朝向相同，或所述多个小区共址，所述多个小区准共址，多个小区采用载波聚合或所述多个小区具有相同的物理小区标识PCI。
在一个可能的设计中，所述参考信号发送配置包括：所述小区标识、小区组标识、SSB的发送频域位置、SSB的发送子载波间隔、SSB的发送周期、SSB的发送偏移量或者SSB在周期内的发送位置索引；其中，所述小区组标识用于标识一组小区，所述一组小区包括所述关联信息指示的所述多个小区的部分或全部。
在一个可能的设计中，所述SSB在周期内的发送位置索引的数目等于所述发送所述小区的SSB采用的波束数目。这样，能够使得第二节点根据小区的特性，确定小区所用的SSB发送配置。
在一个可能的设计中，所述小区的频率信息包括：所述小区的中心频点或所述小区的频率范围中的一项或两项；所述SSB的发送频域位置包括所述SSB的发送中心频点，所述SSB的发送中心频点位于所述小区的频率范围。这样，能够使得第二节点根据小区的特 性，确定小区所用的SSB发送配置。
在一个可能的设计中，所述小区支持的波形参数包括小区支持的子载波间隔或小区支持的循环前缀类型中的一项或多项。
在一个可能的设计中，所述SSB的发送子载波间隔属于所述小区支持的子载波间隔。这样，能够使得第二节点根据小区的特性，确定小区所用的SSB发送配置。
在一个可能的设计中，所述第一节点的小区为所述第一节点向下级节点或向终端提供服务的小区。
在一个可能的设计中，所述SSB用于终端的初始接入，所述SSB的发送频域位置包括所述SSB的发送中心频点，所述SSB的发送中心频点位于同步栅格sync-raster。这样终端在接入时可对第一节点的该小区进行搜索。
在一个可能的设计中，所述第一节点的小区配置还包括：时分双工TDD资源配置和/或随机接入信道RACH配置。
在一个可能的设计中，所述处理模块还用于根据所述第一节点的小区配置，确定所述第一节点的小区的系统消息。
可选的，所述第一节点的小区的系统消息包括剩余最小系统消息RMSI或SIB1。
第七方面，本申请实施例提供一种装置，所述装置包括通信接口和处理器，所述通信接口用于该装置与其它设备进行通信，例如数据或信号的收发。示例性的，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，其它设备可以为第二节点。处理器用于调用一组程序、指令或数据，执行上述第一方面描述的方法。所述装置还可以包括存储器，用于存储处理器调用的程序、指令或数据。所述存储器与所述处理器耦合，所述处理器执行所述存储器中存储的、指令或数据时，可以实现上述第一方面描述的方法。
第八方面，本申请实施例提供一种装置，所述装置包括通信接口和处理器，所述通信接口用于该装置与其它设备进行通信，例如数据或信号的收发。示例性的，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，其它设备可以为第一节点，例如IAB节点。处理器用于调用一组程序、指令或数据，执行上述第二方面描述的方法。所述装置还可以包括存储器，用于存储处理器调用的程序、指令或数据。所述存储器与所述处理器耦合，所述处理器执行所述存储器中存储的、指令或数据时，可以实现上述第二方面描述的方法。
第九方面，本申请实施例提供一种装置，所述装置包括通信接口和处理器，所述通信接口用于该装置与其它设备进行通信，例如数据或信号的收发。示例性的，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，其它设备可以为第一节点，例如IAB节点。处理器用于调用一组程序、指令或数据，执行上述第三方面描述的方法。所述装置还可以包括存储器，用于存储处理器调用的程序、指令或数据。所述存储器与所述处理器耦合，所述处理器执行所述存储器中存储的、指令或数据时，可以实现上述第三方面描述的方法。
第十方面，本申请实施例中还提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当所述计算机可读指令在计算机上运行时，使得计算机执行如第一方面或第一方面中任一种可能的设计中所述的方法。
第十一方面，本申请实施例中还提供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，使得计算机执行如第二方面或第二方面中任一种可能的设计中所述的方法。
第十二方面，本申请实施例中还提供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，使得计算机执行如第三方面或第三方面中任一种可能的设计中所述的方法。
第十三方面，本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现上述第一方面或第一方面中任一种可能的设计中所述的方法。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第十四方面，本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现上述第二方面或第二方面中任一种可能的设计中所述的方法。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第十五方面，本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现上述第三方面或第三方面中任一种可能的设计中所述的方法。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第十六方面，本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行如第一方面或第一方面中任一种可能的设计中所述的方法，或者执行如第二方面或第二方面中任一种可能的设计中所述的方法，或者执行如第三方面或第三方面中任一种可能的设计中所述的方法。
第十七方面，本申请实施例提供了一种系统，所述系统包括第四方面所述的装置、和第五方面或第六方面所述的装置。
附图说明
图1为本申请实施例中通信系统的架构示意图；
图2a为本申请实施例中IAB节点的结构示意图；
图2b为本申请实施例中DU多小区结构示意图；
图3为本申请实施例中小区配置的确定方法流程示意图；
图4为本申请实施例中装置结构示意图之一；
图5为本申请实施例中装置结构示意图之二。
具体实施方式
本申请实施例提供一种小区配置的确定方法及装置，用于实现对中继节点的小区级别的配置，例如小区级别的同步信号发送配置。其中，方法和装置是基于同一技术构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。本申请实施例的描述中，“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。本申请实施例中所涉及的至少一个是指一个或多个；多个，是指两个或两个以上。另外，需要理解的是，在本申请实施例的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
下面将结合附图，对本申请实施例进行详细描述。
本申请实施例提供的小区配置的确定方法可以应用于物联网(internet of things，IoT)系统、车联网、第五代(5th generation，5G)通信系统、或应用于未来的各种通信系统， 如第六代(6th generation，6G)通信系统。其中，5G还可以称为NR。
本申请实施例中提到的节点(node)可以是上述各种通信系统中的节点，节点也可以称为网络设备。节点可以是一种中继设备，或者说是一种中继节点(relay node，RN)、中继传输接收点(relay transmission and receptio point，rTRP)或者IAB节点。本申请实施例中可以以NR系统中的IAB节点为例对本申请实施例的方法进行说明，可以理解，所描述的方法可以应用到其它通信系统或者其它节点，均属于本申请保护的范围。
图1示出了本申请实施例适用的一种可能的通信系统的架构，以IAB节点(node)的应用场景为例，该通信系统100可以包括一个或多个IAB节点。通信系统100包括的节点中可以有一个宿主(donor)节点。举例来说，通信系统100可以包括IAB节点101、IAB节点102、IAB节点103和donor节点104。donor节点104，是可以为IAB节点提供服务的网络设备，包括为IAB节点提供无线回传功能(functionality)，为IAB节点和IAB节点下属的终端提供核心网接口。在NR IAB中，IAB节点为层二中继，不具有RRC等高层功能，因此，终端和IAB节点移动终端(mobile termination，MT)模块的高层功能需要由donor节点提供。在一些场景中，IAB节点的上级节点和donor节点为同一个网络设备。该通信系统100还可以包括终端110。应理解，该通信系统100中可以包括更多或更少的节点。IAB节点可以与父节点通信，也可以与子节点通信。父节点也可称为上级节点或上游节点，子节点也可称为下级节点或下游节点。上级节点可以是普通基站，也可以是其它IAB节点；下级节点可以是普通终端，也可以是其它IAB节点。对于任意一个IAB节点来说，包括两部分，用于实现类似基站的功能和类似终端的功能。可以参照图2a所示，IAB节点可以包括MT和分布式单元(distributed unit，DU)两部分。其中，MT是用于实现类似普通终端的功能模块，用于与上级节点通信，例如向上级节点发送上行(uplink，UL)数据，从上级节点接收下行(downlink，DL)数据。DU是用于实现类似普通基站的功能模块，用于与下级节点通信，例如向下级节点发送下行(DL)数据，从下级节点接收上行(UL)数据。MT与上级节点通信的链路可以称为上级回传链路(parent BH link)；DU与下级节点通信的链路可以称为下级回传链路(child BH link)。DU与终端通信的链路可以称为接入链路(access link)。在一些情况下，下级回传链路也可以称为接入链路，如IAB节点101与IAB节点102之间的下级回传链路对IAB节点102来说也可以被视作接入链路。上级回传链路和下级回传链路统称为无线回传链路或无线回程链路。图1中，IAB节点101～103都通过无线回程链路连接到网络。应理解，图1所示的IAB系统中，一个IAB节点连接一个上游节点，但是在未来的IAB系统中，为了提高无线回程链路的可靠性，可以有多个上游节点同时为一个IAB节点提供服务。在IAB系统中，IAB节点不限于是网络节点还是UE，例如，在设备对设备(device to device，D2D)场景下，UE可以充当中继节点为其他UE服务。
IAB node是中继节点的特定的名称，不对本申请的方案构成限定，可以是一种具有转发功能的网络设备或者终端设备中的一种，也可以是一种独立的设备形态。在本申请中，IAB node可以泛指任何具有中继功能的节点或设备。比如，IAB节点可以为设置在移动物体上的模块或者装置，移动物体包括但不限于物联网中的设备，例如，汽车、火车、飞机等。
上述网络设备包括但不限于：演进型节点B(evolved node base，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器 (base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home node B，HNB)、基带单元(baseband Unit，BBU)、eLTE(evolved LTE,eLTE)基站、NR基站(next generation node B,gNB)或者下一代通信系统的基站等。以图1中IAB节点101来说，通过下级回传链路与子IAB节点102通信，通过上级回传链路与父节点103通信，通过接入链路与终端110进行通信。父节点103还可以通过上级回传链路与父节点103的父节点通信，以此类推，直到donor节点104。
上述终端可以是用户设备(user equipment，UE)、移动台(mobile station，MS)、或移动终端(mobile terminal，MT)等，是一种向用户提供语音或数据连通性的设备，也可以是物联网设备。终端可以是静止或移动的设备。例如移动设备可以是移动电话，智能终端，平板电脑(tablet)，笔记本电脑(laptop)，视频游戏控制台，多媒体播放器，甚至是移动或静止的IAB节点等。静止设备通常位于固定位置，如计算机，接入点(通过无线链路连接到网络，如IAB节点)等。终端设备可以是一种具有无线收发功能的设备，其可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是用户设备(user equipment，UE)，其中，UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。本申请实施例的描述可以以UE为例对终端实现的方法作说明。
为方便对本申请实施例的理解，以下介绍一下SSB的概念以及SSB的发送方式。
在NR中，主同步信号(primary synchronization signal,PSS),辅同步信号(secondary synchronization signal,SSS)，和物理广播信道(physical broadcast channel,PBCH)被称为同步信号/广播信号块(synchronization signal/PBCH block,SS/PBCH block)。本申请为描述方便，把SS/PBCH block称为SSB。
在时域上，一个SSB包含四个正交频分复用(orthogonal frequency division multiplexing,OFDM)符号。UE通过不同的DM-RS序列以及PBCH中传输的索引号(index)共同确定SSB块索引(block index)，用于识别不同的SSB。具体的SSB的块索引的确定方法为本领域普通技术人员所熟知，不再赘述。在NR中，同步信号的传输是采用波束扫描的方式进行传输的。NR基站会在一个周期内发送多个SSB，每个SSB覆盖一定区域，每个SSB均在协议定义的SSB候选(candidates)位置进行发送。所有SSB candidates位于一个半帧内(5毫秒)。本申请中，SSB candidates位置是指时域的符号位置，以下不再赘述。在不同频段，半帧内的SSB候选(candidates)数目不同。具体地，在3GHz(gigahertz,GHz)以下，SSB candidates数目为4。在3GHz以上且在FR1频段内，SSB candidates数目为8。而在6GHz以上，SSB candidates数目为64。在一个SSB candidate位置，基站可通过频分的方式发送多个SSB。基站发送的SSB会周期性重复，且周期大小可配置，对于用于UE接入的SSB，周期的典型值为20毫秒(millisecond，ms)。具体包括如下5种case：
case A：对15KHz子载波间隔，按照{2,8}+14*n进行发送，其中{2,8}+14*n表示SS/PBCH Block的第一个符号的索引，即位置，以下相同，不再赘述。对小于3GHz或等于3GHz频段，n＝0,1，对大于3GHz且在FR1频段内，n＝0,1,2,3。一个同步信号周期内的 SS/PBCH Block的位置由上述公式遍历n的上述取值，以下相同，不再赘述。
case B：对30KHz子载波间隔，按照{4,8,16,20}+28*n进行发送，对小于3GHz或等于3GHz频段，n＝0,对3GHz以上且在FR1频段内，n＝0,1。
case C：对30KHz子载波间隔，按照{2,8}+14*n进行发送，对小于3GHz或等于3GHz频段，n＝0,1，对3GHz以上且在FR1频段内，n＝0,1,2,3。
case D：对120KHz子载波间隔，按照{4,8,16,20}+28*n进行发送，对FR2频段，n＝0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18。
case E：对240KHz子载波间隔，按照{8,12,16,20,32,36,40,44}+56*n进行发送，对FR2频段，n＝0,1,2,3,5,6,7,8。
应理解，上述5个case是在不同子载波间隔时，半帧内SSB发送或测量的候选位置，该候选位置是指半帧内的时域位置，例如符号索引。而在实际实现中，基站或网络节点在半帧内所发送的SSB数目可能小于SSB候选位置的数目。
对于IAB节点，其DU发送的SSB至少包括两种类型：接入链路SSB(Access link SSB，AC-SSB)和回程链路SSB(backhaul link SSB，BH-SSB)。其中，AC-SSB是UE在初始接入能搜索到的SSB，部分AC-SSB被称为CD-SSB(cell-defining SSB)。对于CD-SSB，UE可通过其物理广播信道(physical broadcast channel，PBCH)的内容确定剩余最小系统消息(remaining minimum system information，RMSI)的控制资源集合(control resource set，CORESET)和搜索空间(search space)集合，进而获取到该SSB关联小区的系统信息。BH-SSB是用于IAB节点进行互测量的SSB，在同一频域位置，每个IAB节点的DU小区可具有多个SSB的发送配置。
在NR IAB中，BH-SSB由donor节点(或donor节点CU)配置。AC-SSB可能由donor节点配置，也可能由IAB节点自行生成。
在实际应用中，IAB节点的DU可具有多个小区(cell)。例如，IAB节点可以具有多个不同朝向的天线面板或扇区，其中，一个面板或扇区对应一个小区，那么，多个的面板或扇区对应多个小区。可以参照图1中的IAB节点101，包括0、1和2三个面板或扇区，对应三个小区。基于此，参照图2b所示，一个IAB节点中包括MT和DU，DU包括三个子模块，分别对应三个小区，用cell#0、cell#1和cell#2表示。可以理解，在其他的实施例中，IAB节点的DU可以包括更多或更少的小区。此外，IAB节点DU可以采用载波聚合的技术，不同的载波对应不同的小区。
考虑到IAB节点的小区划分，本申请实施例可以提供对IAB节点的小区配置。小区配置包括对IAB节点下的小区的一些配置，比如信号发送配置和/或时频资源配置。例如，小区配置包括小区的SSB发送配置、小区的时分双工(time domain duplex，TDD)资源配置或随机接入信道(random access channel，RACH)配置。
参阅图3所示，本申请实施例提供的小区配置的确定方法的具体过程如下所述。以下方法描述中，执行主体为第一节点和第二节点。第一节点和第二节点的概念的解释可以参照上述对节点的解释。在描述方案细节时，可以以节点为IAB节点为例进行介绍。第二节点为第一节点的上级节点或父节点，或者第二节点为donor节点。当第二节点为donor节点时，第一节点与donor节点之间的通信可能需要其余节点的转发，例如第一节点向donor节点发送消息，可以通过一个或多个节点转发该消息直到donor节点。donor节点向第一节点发送消息，可以通过一个或多个节点转发该消息直到第一节点。图3所示的流程中任意 一个或多个步骤可以形成本申请需要保护的方案，例如，以第一节点为执行主体，S301和S303可以形成一个方案，S304中第一节点执行的操作为可选步骤。
S301、第一节点向第二节点发送第一信息，第二节点从第一节点接收第一信息。
其中，第一节点的DU具有一个或多个小区，可以参照图2b对多个小区的描述部分。第一节点的小区为第一节点向下级节点或向终端提供服务的小区。第一信息用于指示第一节点的小区信息，即第一节点的一个或多个小区的信息。第一节点的小区信息用于第二节点对第一节点的小区配置。
第一节点在接入网络后，向第一节点的父节点或者donor节点上报第一节点的小区信息。本申请实施例中，小区信息也可以称为小区参数，小区信息可以是与节点的小区相关的一些参数或信息。例如，第一节点的小区信息包括第一节点下的任意一个小区的信息，还包括第一节点的多个小区的关联信息，该关联信息将在下文详细说明。
为方便描述，本申请实施例中以小区配置为SSB发送配置为例，对本申请实施例提供的小区配置的确定方法进行详细说明。
当网络中存在多个IAB节点时，IAB节点需要相互发现或测量，用以建立多连接、维护备用连接或干扰测量等目的。IAB节点需要发送SSB，用于该IAB节点附着的终端设备的接入，或用于其它IAB节点的发现和测量。
IAB节点如何进行SSB的发送，是需要解决的问题。
第一节点下的任意一个小区的小区信息可以是与发送该小区的SSB相关的一些参数。第一节点下的任意一个小区的信息包括以下一项或多项：
1)小区标识。
该小区标识可用于指示小区信息是用于描述哪一个小区的，可以有多种类型的标识。
小区标识以下面三种类型为例介绍。
第一种类型：本地小区标识或逻辑小区标识。例如，若一个IAB节点的DU包含3个小区，则其标识可分别为0,1和2。本地小区标识可以由IAB节点自行确定，也可以由上级节点或donor节点确定。此外，本地小区标识的确认方法也可以由协议直接定义。
第二种类型：物理小区标识(Physical-layer cell identity，PCI)。例如，NR共有1008个不同的物理小区标识。物理小区标识可以由IAB节点确定，也可以根据donor节点配置获得。在一种可能的实施方式中，IAB节点上报其需要的PCI数目，donor节点为该IAB节点分配对应数量的PCI，所分配的PCI则作为小区标识。
第三种类型：全局小区标识(cell global identity，CGI)。
在不同的实施方式中，第一节点可以向第二节点发送的一种类型的小区标识，也可以发送多种类型的小区标识。例如，IAB节点可以向上级节点或donor节点上报本地小区标识和物理小区标识，或者IAB节点可以向上级节点或donor节点上报全局小区标识。
小区标识可以是针对一个特定小区的，该小区标识用于指示小区信息是用于描述这一个特定小区的；或者，小区标识也可以是针对为多个小区，表示小区信息用于描述这多个小区。
2)发送小区的SSB采用的波束数目或者小区具有的波束数目。
例如，这里的SSB可以是IAB节点DU小区发送的SSB，发送小区的SSB采用的波束数目是指DU小区发送SSB可采用的波束数目。第一节点(包括IAB节点DU)的一个小区在一定时间内最多可发送L个SSB，其中每个SSB可采用一个波束，L个SSB采用L 个波束。例如，一定时间为5ms。因此这里的波束数目对应于5ms内DU小区所需要发送的SSB数目。在不同的频段，L具有不同的取值，例如，5G NR主要使用两段频率FR1和FR2。在5G NR系统中的FR2频段，L＝64。本申请实施例中，FR2仅为高频的一种示例性称呼，FR2的参数配置方法可能适用于其余频段，例如FR1与FR2之间的频段。
3)小区的频率信息。
其中，该小区的频率信息可以为小区的中心频点，或者为小区的频率范围，或者既包括小区的中心频点又包括小区的频率范围。该小区的频率信息可以用于确定小区的SSB发送配置。例如，小区的SSB发送配置中包括小区的SSB的发送中心频点，则在设置小区的SSB的发送中心频点时，需要将小区的SSB的发送中心频点设置在小区的频率范围之内。
4)小区支持的波形参数(numerology)。
其中，小区支持的波形参数可以为小区支持的子载波间隔，或者为小区支持的循环前缀类型，或者既包括小区支持的子载波间隔又包括小区支持的循环前缀类型。
第一节点的小区信息还可以包括其他信息。该小区信息可用于第二节点确定第一节点的小区的SSB发送配置，SSB可能用于终端的初始接入，然而IAB节点DU的部分小区可能不需要或不希望终端进行初始接入。因此小区信息还可以包括是否需要用于终端初始接入的SSB的配置。如果小区信息中针对第一小区的该配置为“是”，则表示第一小区的SSB发送配置需要包括专门用于终端初始接入的SSB的配置，否则不需要。
以下介绍第一节点的多个小区的关联信息。
第一节点的多个小区的关联信息可以是以下一种或多种情况。
第一节点的多个小区是指第一节点的DU下的多个小区。第一节点的小区也可以称为DU小区。同一个DU下的多个小区可能包括如下关联关系：同一个DU下的多个小区可能共享一个天线面板；也可能多个小区具有相同的天线朝向；也可能多个小区共址；也可能多个小区准共址；或者多个小区具有接近的频段，例如采用载波聚合；或者多个小区具有相同的PCI。以上这几种情况中可能多个情况共同存在。例如，多个小区具有相同的天线朝向并且具有接近的频段。
在一种可能的实施方式中，第一节点为IAB节点，具有关联关系的同一个DU下的多个小区可共享SSB或共享其余参考信号。例如，具有关联关系的同一个DU下的多个小区包括小区A、小区B和小区C。共享SSB是指，除第一节点外的其余设备对小区A的SSB测量结果可用于推导小区B或小区C的信号质量等信息。其中，除第一节点外的其余设备可以是IAB节点或终端设备。当IAB节点上报其多个DU小区具有关联关系时，则表示IAB节点假定其余设备对其中一个DU小区的测量结果可用于推导其关联DU小区的信号质量等信息。
在一种可能的实施方式中，具有关联关系的多个DU小区与MT具有同样的资源复用类型，这里的资源复用类型包括时分复用，频分复用，空分复用和全双工。例如，当MT与DU的多个小区具有相同的天线朝向相同时，两者的资源可以为时分复用；而当MT与DU的多个小区具有不同的天线朝向时，两者的资源可能为时分复用或空分复用。
在第一节点下的多个小区具有关联关系时，第一节点可以对第一节点的多个小区进行分组，具有关联关系的小区分在一个组内，一个组具有一个组标识。从而，第一节点可通过对小区分组的方法隐式地上报DU小区的关联关系，具体地，第一节点对其DU的多个 小区进行分组，同一组的多个小区具有关联关系。示例性地，第一节点的小区信息中还包括小区组标识，小区组标识用于标识多个小区，具有同样小区组标识的小区属于同一小区组。可选的，小区的关联信息可以为小区的分组信息。
可以理解，第一节点的小区信息在上述举例的信息基础上，可以包括更多或更少的信息。例如，如果第一节点的小区标识中的PCI是由第二节点配置的情况下，则第一节点不需要在小区信息中上报PCI。
可选的，小区信息还可能包括IAB节点多个波束对之间的隔离度信息。
应理解，第一节点上报至第二节点的信息可以通过RRC等空口信令传递，也可以通过F1-AP等接口消息传递。
在一种可能的实现中，上述小区信息中的一部分由其余网络设备发送给第二节点，其余网络设备可以是其他的基站，例如其余gNB、eNB或IAB节点，也可以是核心网设备或网元，例如运维服务器(operation,administration,and maintenance，OAM)。
S302、第二节点确定第一节点的小区配置。
该第一节点的小区配置可以包括SSB发送配置(SS/PBCH block transmission configuration,STC)、时分双工(time division duplexing，TDD)资源配置或随机接入信道(random access channel，RACH)配置中的一项或多项。SSB发送配置用于指示第一节点的小区的SSB发送配置。第一节点为IAB节点，SSB发送配置所述的SSB可以包括：用于IAB节点相互测量的SSB或用于终端接入的SSB，本申请实施例中SSB发送配置的相关方案可以扩展为信道状态信息参考信号(channel state information-reference signal，CSI-RS)信号的发送配置的方案。
第一节点的小区配置还可以包括其他与第一节点的多小区架构相关的配置，多小区架构是指第一节点下的多个小区的架构，第二节点可以根据第一节点上报的第一信息来确定的小区配置均属于本申请实施例所要保护的范围。
S303、第二节点向第一节点发送第二信息，第一节点从第二节点接收第二信息。
该第二信息用于向第一节点指示第一节点的小区配置。
第二节点在接收到第一节点发送的第一信息后，根据第一信息指示的第一节点的小区信息，确定第一节点的小区配置。第一节点的小区信息即第一节点的一个或多个小区的信息。以小区配置为SSB发送配置为例进行详细描述，如何根据第一节点的小区信息确定或发送其它小区配置，可以参照对SSB发送配置的描述。
第二节点接收到的第一节点的小区信息，可以是针对每一个小区的小区信息。第二节点针对每一个小区，按照对应的小区信息，确定该小区的SSB发送配置。当然，第一节点可以上报第一节点下的部分或全部小区的小区信息。第二节点也可以对第一节点的部分或全部小区进行小区级别的SSB发送配置。
当第一节点的小区信息指示有多个小区关联时，第二节点可以针对该多个小区确定一个SSB发送配置，这多个具有关联关系的小区可以采用相同的SSB发送配置，即采用相同的配置发送SSB。例如，第一节点的小区信息指示了第一小区和第二小区的关联信息，第一小区和第二小区具有相同的天线朝向，则第二节点在向第一节点发送的SSB发送配置中，指示第一小区和第二小区享用相同的SSB发送配置。或者说，第一节点的小区信息中包括小区组标识的情况下，第二节点可以为同一个组的小区进行相同的SSB发送配置。这样不用为具有关联的多个小区中的每一个小区单独进行SSB发送配置，一方面节省SSB 发送配置的开销，另一方面节省SSB发送资源。
在另一种可能的实施方式中，当第一节点的小区信息指示有多个小区关联时，第二节点可以针对关联的多个小区确定一套SSB发送配置，且此套SSB发送配置只应用于其中一个小区。可选地，第二节点仅为多个关联小区或一个小区组中的部分小区(例如一个小区)发送SSB发送配置。这里的SSB包括以下信号中的一个或多个：用于IAB节点相互测量的SSB，用于终端接入的SSB。如前文所述，关联的多个小区可以享用共同的SSB发送配置，关联的DU小区可共享SSB，因此仅为部分小区配置SSB可以在不影响测量性能的前提下降低IAB节点DU的资源开销。
SSB发送配置用于指示第一节点在发送小区的SSB时采用什么参数进行发送，或者指示第一节点如何发送小区的SSB。
SSB发送配置可以包括以下一种或多种信息：
(1)、小区标识。
该小区标识与小区信息中的第1)中举例的小区标识相同。用于指示SSB发送配置是针对哪个小区的。小区标识可以是针对一个特定小区的，当然也可以为多个小区的标识，表示这套SSB发送配置是针对这多个小区都适用的。
(2)、小区组标识。
第一节点上报的小区信息可能具有多个小区的关联信息，则小区组标识用于标识位于同一个组内的具有关联关系的小区，指示小区组内的小区均采用该SSB发送配置。当然，小区组标识所标识的一组小区包括关联信息指示的多个小区的部分或全部。
(3)、SSB的发送频域位置。
SSB的发送频域位置用于指示第一节点在针对小区发送SSB占用的频域位置，可以用SSB的发送中心频点表示。
若第一节点上报的小区信息中包括小区的频率范围，则第二节点根据小区的频率范围确定该小区的SSB的发送频域位置。例如，小区的SSB发送中心频点应在小区的频率范围内，或者小区SSB发送的频率范围不超过小区的频率范围。
在一种可能的实现方式中，第一节点上报的小区信息可能会指示是否需要用于终端初始接入的SSB的配置，当第一节点发送小区的SSB是用于终端的初始接入时，第二节点向第一节点指示SSB发送配置中的SSB发送频域位置还需要符合以下特征，SSB频域位置用SSB的中心频点表示，则SSB的中心频点位于同步栅格(sync-raster)。这样终端在接入时可对第一节点的该小区进行搜索。第二节点可在向第一节点发送的SSB发送配置中携带一个指示，该指示用于指示该SSB发送配置用于针对作为终端的初始接入用途的小区的SSB。
(4)、SSB的发送子载波间隔的信息。
若第一节点上报的小区信息中包括小区支持的子载波间隔的信息，则第二节点根据小区支持的子载波间隔的信息确定SSB的发送子载波间隔。小区支持的子载波间隔的信息用于指示小区支持的子载波间隔。例如，SSB的发送子载波间隔属于小区支持的子载波间隔中的一种。
(5)SSB的发送周期。
(6)SSB的发送偏移量。
(7)SSB在周期内的发送位置索引。
例如，SSB在一个周期内只在半帧上的某些符号位置进行发送，SSB在周期内的发送位置索引一般是指在一个周期的半帧内的位置索引。
类似第一节点的小区信息，该SSB发送配置在上述举例的基础上，也可以包括更多或更少的信息。
以第一节点的小区配置为SSB发送配置为例，在S303之后，还可以包括S304。
S304、第一节点根据SSB发送配置发送小区的SSB。
具体地，第一节点针对每一个小区，按照该小区对应的SSB发送配置发送该小区的SSB。当然，若多个小区采用相同的SSB发送配置，则第一节点对采用相同的发送配置的多个小区，均按照该SSB发送配置来发送小区的SSB。
下面以节点为IAB节点、SSB为SSB为例、小区配置以SSB发送配置为例，对小区信息和SSB发送配置的可能表现形式进行举例说明，以下对表现形式的举例可以应用到上述小区配置的确定方法中，但不作为对本申请的限定。
IAB节点会向上级节点或donor节点发送IAB节点的DU下多个小区(cell)的小区信息。该多个小区的小区信息表现形式可以如下所示。
Figure PCTCN2020109307-appb-000001
以上小区信息中，％后的描述用于对前面配置参数的解释。[X,Y]中X,Y表示频率的起始和终止位置。ARFCN-ValueNR是NR协议规定的绝对射频信道数(absolute radio frequency channel number，ARFCN)。ARFCN-ValueNR可指示射频频率信息，在现有NR协议中，其范围为[0…3279165]，对应于0MHz至100000Mhz的3279166个频域栅格信息。针对某一个小区，频率范围的X和Y可以从3279166个频域栅格信息中选择，中心频点Z也可以从3279166个频域栅格信息中选择。实际应用中，可以上报频率范围和中心频点中的一个，也可以两个都上报。2^u1*15KHz或2^u2*15KHz中的u1和u2为用于确定子载波间隔的参数，例如5G系统低频频段u1和u2取值包括：0、1或2，5G系统高频频 段u1和u2取值包括：2、3或4。针对某一个小区，发送SSB的索引位置可以取[b_0,b_1,…,b_M-1]中的一个或多个数值。SSB波束数目表示发送小区的SSB采用的波束数目。{case#M1，case#M2}中的M1和M2表示两种不同的case，例如，上述举例的5种case中caseA～caseE的任意两种不同的case。针对某一个小区，支持的SSB发送case可以是协议定义的多种case中选择一个或多个case。AC-SSB表示用于终端初始接入的SSB，是否需要AC-SSB配置表示是否需要配置用于终端初始接入的SSB的配置。
IAB节点的上级节点或donor节点在接收到IAB节点发送的IAB节点的DU下多个小区的小区信息后，会根据多个小区的小区信息确定每一个小区的SSB发送配置。SSB发送配置可能表现形式如下所述。
Figure PCTCN2020109307-appb-000002
其中，ARFCN-ValueNR可指示射频频率信息，在现有NR协议中，其范围为[0…3279165]，对应于0MHz至100000Mhz的3279166个频域栅格信息。针对某一个小区，SSB中心频点也可以从3279166个频域栅格信息中选择。例如，针对某一个小区的SSB发送配置的参数，可以是上述表格中各参数对应的举例中的任意值。当然SSB发送配置的参数不限于上述表格中的举例。
可以理解的是，在上述关于小区信息或SSB发送配置的表现形式中的举例参数的基础上，还可以包括更多或更少的参数。
在一种可能的实施例中，IAB节点的上级节点或donor节点向该IAB节点发送SSB发送配置，以donor节点向IAB节点发送SSB发送配置为例。IAB节点DU发送的用于终端或用户初始接入的SSB也是由donor节点所配置的，例如用于终端或用户初始接入的SSB记为AC-SSB。这种情况下，donor节点发送的SSB发送配置可包含SSB的用途，例如在 SSB发送配置中指定该配置用于AC-SSB或cell-defining SSB。当SSB发送配置被指示为用于AC-SSB或小区定义SSB(cell-defining SSB)，SSB发送配置指示的SSB的发送中心频点应位于NR所定义的sync-raster，用以保证用户接入可对其进行搜索。
如上所述，小区配置还包括TDD资源配置和/或RACH配置。SSB发送配置、TDD资源配置或RACH配置可以在一个消息中指示，也可分开指示。可选的，donor节点在向IAB节点发送的SSB发送配置的基础上，针对每个小区进行TDD资源配置和/或RACH配置等参数配置。TDD资源配置和/或RACH配置与SSB发送配置类似，通过小区标识或小区组标识来区分是用于哪个小区的配置。TDD资源配置和/或RACH配置可以与SSB发送配置设置于同一个配置消息中，通过同一个小区标识或小区组标识来实现小区粒度的配置。
IAB节点的DU根据SSB发送配置、TDD资源配置和/或RACH配置，为DU下的各个小区生成小区对应的剩余最小系统消息(remaining minimum system information，RMSI)或系统消息块(system information block，SIB)1。具体地，IAB节点将生成的RMSI发送给donor节点，由donor节点转换为RRC消息下发至IAB节点的DU。
根据现有协议，DU所发送的PBCH所承载信息和/或剩余最小系统消息(remaining minimum system information，RMSI)或SIB1应该由DU生成，但STC，TDD资源配置，RACH配置等均由donor生成。因此，IAB DU应根据上述配置信息为各个cell生成对应的PBCH所承载信息和/或RMSI。
在一种可能的实现中，donor节点将一个或多个STC配置指示为AC-SSB，并生成对应的PBCH承载和/或RMSI。可选的，生成的RMSI需要发送给DONOR，而后由donor转换为RRC消息下发回至DU。这样，解决STC集中配置需求与DU自行生成RMSI的矛盾。
上述本申请提供的实施例中，分别从第一节点、宿主节点、以及第一节点和宿主节点之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，第一节点和宿主节点可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
如图4所示，基于同一技术构思，本申请实施例还提供了一种装置400，该装置400可以是上文中的第一节点或第二节点，也可以是第一节点或第二节点中的装置，或者是能够和第一节点或第二节点匹配使用的装置。一种设计中，该装置400可以包括执行上述方法实施例中第一节点或第二节点执行的方法/操作/步骤/动作所一一对应的模块，该模块可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。一种设计中，该装置可以包括处理模块401和通信模块402。
当用于执行第一节点执行的方法时：
通信模块402，用于向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；以及用于从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的。
处理模块401和通信模块402还可以用于执行上述方法实施例第一节点执行的其它对应的步骤或操作，在此不再一一赘述。
当用于执行第二节点执行的方法时：
通信模块402，用于从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息。
处理模块401，用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置。
通信模块402，还用于向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的小区配置。
或者：
处理模块401，用于确定第一节点的小区配置。
通信模块402，用于向所述第一节点发送所述第一节点的小区配置。
处理模块401和通信模块402还可以用于执行上述方法实施例第二节点执行的其它对应的步骤或操作，在此不再一一赘述。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
如图5所示为本申请实施例提供的装置500，用于实现上述方法中第一节点或第二节点的功能。当实现第二节点的功能时，该装置可以是第二节点，也可以是第二节点中的装置,或者是能够和第二节点匹配使用的装置。当实现第一节点的功能时，该装置可以是第一节点，也可以是第一节点中的装置,或者是能够和第一节点匹配使用的装置。其中，该装置可以为芯片系统。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。装置500包括至少一个处理器520，用于实现本申请实施例提供的方法中第一节点或第二节点的功能。装置500还可以包括通信接口510。在本申请实施例中，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口，用于通过传输介质和其它设备进行通信。例如，通信接口510用于装置500中的装置可以和其它设备进行通信。示例性地，装置500是第二节点时，该其它设备可以是第一节点。装置500是第一节点时，该其它装置可以是第二节点。处理器520利用通信接口510收发数据，并用于实现上述方法实施例所述的方法。示例性地，当实现第二节点的功能时，通信接口510用于从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息。处理器520用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置。通信接口510还用于向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的小区配置。或者，当实现第二节点的功能时，处理器520，用于确定第一节点的小区配置。通信接口510，用于向所述第一节点发送所述第一节点的小区配置。
当实现第一节点的功能时，通信接口510用于向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息，以及用于从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的。
具体参见方法示例中的详细描述，此处不做赘述。
装置500还可以包括至少一个存储器530，用于存储程序指令和/或数据。存储器530和处理器520耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连 接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器520可能和存储器530协同操作。处理器520可能执行存储器530中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
本申请实施例中不限定上述通信接口510、处理器520以及存储器530之间的具体连接介质。本申请实施例在图5中以存储器530、处理器520以及通信接口510之间通过总线540连接，总线在图5中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图5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。
在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
装置400和装置500具体是芯片或者芯片系统时，通信模块402和通信接口510所输出或接收的可以是基带信号。装置400和装置500具体是设备时，通信模块402和通信接口510所输出或接收的可以是射频信号。
本申请实施例提供了一种计算机存储介质，存储有计算机程序，该计算机程序包括用于执行上述实施例提供的小区配置的确定方法的指令。
本申请实施例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实施例提供的小区配置的确定方法。
本申请实施例还提供了一种芯片，该芯片包括处理器和接口电路，该接口电路和该处理器耦合，该处理器用于运行计算机程序或指令，以实现上述小区配置的确定方法，该接口电路用于与该芯片之外的其它模块进行通信。
本申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。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发明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、网络设备、用户设备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个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，简称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可以存取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，数字视频光盘(digital video disc，简称DVD))、或者半导体介质(例如,SSD)等。
在本申请实施例中，在无逻辑矛盾的前提下，各实施例之间可以相互引用，例如方法实施例之间的方法和/或术语可以相互引用，例如装置实施例之间的功能和/或术语可以相互引用，例如装置实施例和方法实施例之间的功能和/或术语可以相互引用。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (27)

  1. 一种小区配置的确定方法，其特征在于，包括：
    第一节点向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；
    所述第一节点从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的。
  2. 一种小区配置的确定方法，其特征在于，包括：
    第二节点从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；
    第二节点根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置；
    所述第二节点向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的小区配置。
  3. 一种装置，其特征在于，应用于第一节点，所述装置包括通信接口，其中：所述通信接口用于向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；以及用于从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的。
  4. 一种装置，其特征在于，应用于第一节点，包括：
    通信模块，用于向第二节点发送第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；以及用于从所述第二节点接收第二信息，所述第二信息用于指示所述第一节点的小区配置，其中，所述第一节点的小区配置是根据所述第一节点的一个或多个小区的信息确定的；
    处理模块，用于调用所述通信模块执行接收和/或发送的功能。
  5. 一种装置，其特征在于，包括通信接口和处理器，其中：
    所述通信接口用于从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；
    所述处理器用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置；
    所述通信接口，还用于向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的小区配置。
  6. 一种装置，其特征在于，包括：
    通信模块，用于从第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；
    处理模块，用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置；
    所述通信模块，还用于向所述第一节点发送第二信息，所述第二信息用于指示所述第一节点的小区配置。
  7. 一种装置，其特征在于，包括通信接口和处理器，其中：
    所述处理器用于确定第一节点的小区配置；
    所述通信接口用于向所述第一节点发送所述第一节点的小区配置。
  8. 如权利要求7所述的装置，其特征在于，
    所述通信接口还用于从所述第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；
    所述处理器还用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置。
  9. 一种装置，其特征在于，包括：
    处理模块，用于确定第一节点的小区配置；
    通信模块，用于向所述第一节点发送所述第一节点的小区配置。
  10. 如权利要求9所述的装置，其特征在于，
    所述通信模块还用于从所述第一节点接收第一信息，所述第一信息用于指示所述第一节点的一个或多个小区的信息；
    所述处理模块还用于根据所述第一节点的一个或多个小区的信息，确定所述第一节点的小区配置。
  11. 如权利要求3～10任一项所述的装置，其特征在于，所述装置为芯片。
  12. 如权利要求3～10任一项所述的装置，其特征在于，所述装置为网络设备。
  13. 如权利要求1～2任一项所述的方法或如权利要求3～10任一项所述的装置，其特征在于，所述第一节点的小区配置包括同步信号物理广播信号块SSB发送配置；所述方法还包括：
    所述第一节点根据所述SSB发送配置发送小区的SSB。
  14. 如权利要求13所述的方法或装置，其特征在于，所述第一信息包括以下一项或多项：小区标识、发送小区的SSB采用的波束数目、小区的频率信息、小区支持的波形参数或所述第一节点的多个小区的关联信息。
  15. 如权利要求14所述的方法或装置，其特征在于，所述第一节点的多个小区的关联信息，包括：
    所述多个小区共享天线面板，或所述多个小区朝向相同，或所述多个小区共址，所述多个小区准共址，多个小区采用载波聚合或所述多个小区具有相同的物理小区标识PCI。
  16. 如权利要求13所述的方法或装置，其特征在于，所述SSB发送配置包括：小区标识、小区组标识、SSB的发送频域位置、SSB的发送子载波间隔、SSB的发送周期、SSB的发送偏移量或者SSB在周期内的发送位置索引；其中，所述小区组标识用于标识一组小区。
  17. 如权利要求14或15所述的方法或装置，其特征在于，所述参考信号发送配置包括：所述小区标识、小区组标识、SSB的发送频域位置、SSB的发送子载波间隔、SSB的发送周期、SSB的发送偏移量或者SSB在周期内的发送位置索引；其中，所述小区组标识用于标识一组小区，所述一组小区包括所述关联信息指示的所述多个小区的部分或全部。
  18. 如权利要求17所述的方法或装置，其特征在于，所述SSB在周期内的发送位置索引的数目等于所述发送所述小区的SSB采用的波束数目。
  19. 如权利要求17或18所述的方法或装置，其特征在于，所述小区的频率信息包括：所述小区的中心频点或所述小区的频率范围中的一项或两项；
    所述SSB的发送频域位置包括所述SSB的发送中心频点，所述SSB的发送中心频点位于所述小区的频率范围。
  20. 如权利要求17～19任一项所述的方法或装置，其特征在于，所述小区支持的波形参数包括小区支持的子载波间隔或小区支持的循环前缀类型中的一项或多项。
  21. 如权利要求20所述的方法或装置，其特征在于，所述SSB的发送子载波间隔属于所述小区支持的子载波间隔。
  22. 如权利要求1～21任一项所述的方法或装置，其特征在于，所述第一节点的小区为所述第一节点向下级节点或向终端提供服务的小区。
  23. 如权利要求1、2、13～20任一项所述的方法或如权利要求3-20任一项所述的装置，其特征在于，所述SSB用于终端的初始接入，所述SSB的发送频域位置包括所述SSB的发送中心频点，所述SSB的发送中心频点位于同步栅格sync-raster。
  24. 如权利要求1、2、13～23任一项所述的方法或如权利要求3-23任一项所述的装置，其特征在于，所述第一节点的小区配置还包括：时分双工TDD资源配置和/或随机接入信道RACH配置。
  25. 如权利要求1、2、13～24任一项所述的方法或如权利要求3-24任一项所述的装置，其特征在于，所述方法还包括：
    所述第一节点根据所述第一节点的小区配置，确定所述第一节点的小区的系统消息。
  26. 一种计算机可读存储介质，其特征在于，所述计算机存储介质中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得如权利要求1、2、或13～25中任一项所述的方法被执行。
  27. 一种计算机程序产品，其特征在于，所述计算机程序产品中存储有计算机可读指令，当所述计算机可读指令在通信装置上运行时，使得如权利要求1、2、或13～25中任一项所述的方法被执行。
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