Communication method and related device

Abstract

The invention provides a communication method, a communication device and a communication system applied to the field of communication. In the technical scheme provided by the invention, a communication node comprising a terminal part and an access part determines available resources for data channel transmission and / or control channel transmission of the access part of the communication node based on resource indication information of other communication nodes; the resource indication information of other communication nodes indicates available resources for data channel transmission and / or control channel transmission of the access parts of the other communication nodes, so that the communication nodes can determine the available resources for the control channel transmission and / or the data channel transmission of the access parts of the communication nodes through short time delay.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to communication methods and related devices. Background Art

[0002] In a communication system, a host node of a communication node configures the access part of the communication node for the resources available for data channel transmission and / or control channel transmission to the communication node through a node between the host node and the communication node. However, this configuration method has a long delay, thereby affecting the utilization efficiency of the communication node. Summary of the invention

[0003] The present application provides a communication method, a communication device and a communication system to support a communication node to determine the available resources for its access part to perform control channel and / or data channel transmission through a shorter delay.

[0004] In a first aspect, the present application provides a communication method, which is applied to a communication node, wherein the communication node includes an access part and a terminal part, the terminal part is used to execute terminal standard processes and / or implement terminal standard behaviors, and the access part is used to terminate the interface from the communication node to the terminal or from the communication node to its next-hop communication node. The communication method includes: sending first information, the first information is used to indicate a first resource, and the first resource includes resources available for the access part of the communication node to perform data channel transmission and / or control channel transmission.

[0005] In the communication method, a communication node sends first information to indicate the resources available for data channel transmission and / or control channel transmission by its access part, so that other communication nodes other than the communication node can know the resources available for data channel transmission and / or control channel transmission by the access part of the communication node, thereby facilitating other communication nodes to determine the resources available for data channel transmission and / or control channel transmission by the access part of the other communication node based on the resources available for data channel transmission and / or control channel transmission by the access part of the communication node. Compared with the communication method in the background technology, the communication method helps to reduce the time required for the other communication node to determine the resources available for data channel transmission and / or control channel transmission by its access part.

[0006] As an example, the communication node is Figure 3 or Figure 6 The communication node 1 in the illustrated embodiment.

[0007] In a second aspect, the present application provides a communication method, which is applied to a first communication node, the first communication node includes an access part and a terminal part, the terminal part is used to execute terminal standard processes and / or implement terminal standard behaviors, and the access part is used to terminate the interface from the first communication node to the terminal or the first communication node to its next-hop communication node. The communication method includes: receiving first information from a second communication node, the second communication node includes an access part and a terminal part, the first information is used to indicate a first resource, the first resource includes resources available in the access part of the second communication node for data channel transmission and / or control channel transmission; determining, based on the first information, resources available in the access part of the first communication node for data channel transmission and / or control channel transmission.

[0008] In this communication method, the first communication node determines the resources available in its access part for data channel transmission and / or control channel transmission based on the first resource indicated by the second communication node. Compared with the communication method in the background technology, it helps to reduce the time required for the first communication node to determine the resources available in its access part for data channel transmission and / or control channel transmission.

[0009] As an example, the first communication node is Figure 3 or Figure 6 In the embodiment shown, the second communication node is Figure 3 or Figure 6 The communication node 1 in the illustrated embodiment.

[0010] In some possible implementations of the second aspect, the communication method may further include: receiving a reference signal from a second communication node; wherein, determining the resources available for data channel transmission and / or control channel transmission in the access part of the first communication node based on the first information may include: determining the resources available for data channel transmission and / or control channel transmission in the access part of the first communication node based on the first information and the measurement results of the reference signal sent by the second communication node.

[0011] In this implementation, in addition to the first information, the reference signal sent by the second communication node is combined to determine the resources available for data channel transmission and / or control channel transmission in the access part of the first communication node, which can improve the accuracy of the determined available resources.

[0012] It can be understood that the second communication node in the second aspect may be the communication node in the first aspect.

[0013] In some possible implementations of the second aspect, receiving first information from a second communication node may include: receiving the first information from the second communication node through a terminal part in the first communication node; wherein, determining the resources available for data channel transmission and / or control channel transmission in an access part in the first communication node based on the first information and a measurement result of a reference signal sent by the second communication node may include: determining, through the access part in the first communication node, the resources available for data channel transmission and / or control channel transmission in the access part in the first communication node based on the first information and the measurement result.

[0014] In this implementation, optionally, it may also include that the terminal part of the first communication node transmits the first information and the measurement result to the access part through an interface between the terminal part and the access part.

[0015] In the first aspect and the second aspect, optionally, the first information used to indicate the first resource may include: the first information is used to indicate a first pattern, and the first pattern represents the distribution of the first resource in at least one of the following dimensions: time domain, frequency domain, or spatial domain.

[0016] Optionally, the first pattern may be one of a plurality of resource patterns, different resource patterns among the plurality of resource patterns differ in at least one of the following dimensions: time domain, frequency domain, or spatial domain; wherein the first information includes a first identifier, and the first identifier includes an identifier of the first pattern among the plurality of resource patterns.

[0017] Optionally, the multiple resource patterns are resource patterns in a first resource pattern set, and the first resource pattern set is one of multiple resource pattern sets, wherein the first identifier may also include an identifier of the first resource pattern set in the multiple resource pattern sets.

[0018] This implementation method can accurately indicate the first pattern when the identifiers of resource patterns in multiple resource pattern sets are the same.

[0019] In the first aspect and the second aspect, optionally, the first information may be carried in a system message. The first information is transmitted through the system message so that the first communication node can receive the first information even when it has not yet accessed the communication network, thereby facilitating resource configuration by the first communication node.

[0020] Optionally, the system message carrying the first information may be MIB or SIB1.

[0021] Optionally, the first information may be carried in a first IE in MIB or SIB1, and the first IE is also used to carry other information in addition to the first information. In other words, the IE used by MIB or SIB1 to carry other information is multiplexed to carry the first information.

[0022] When the first information is carried in the MIB, optionally, the other information includes at least one of the following information: BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred. For example, the IE used by MIB or SIB1 to carry BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred can be reused to carry the first information.

[0023] When the first information is carried in SIB1, optionally, the first information may be carried in ServingCellConfigCommon in SIB1.

[0024] The above-mentioned multiplexing of the IE used to carry other information in MIB or SIB1 to carry the first information can reduce the implementation complexity of the communication method, improve the utilization rate of resources, and save signaling overhead.

[0025] Optionally, the first information may also be carried in an IE designed or defined for the first information in a system message (eg, MIB or SIB1).

[0026] In the first aspect and the second aspect, optionally, the first information may be carried in an RRC configuration message.

[0027] In the first aspect and the second aspect, optionally, the first information can be carried in DCI.

[0028] When the first information is carried in the DCI, optionally, the CRC of the DCI carrying the first information may be scrambled by a first RNTI, and the first RNTI is used for a terminal portion in a group of communication nodes to receive the DCI.

[0029] In a third aspect, the present application provides a communication device. The communication device may include a module corresponding to the method / operation / step / action described in the first aspect, and the module may be a hardware circuit, or software, or a combination of a hardware circuit and software.

[0030] In one design, the apparatus may include a processing module and a communication module. The communication module is used to perform the sending action and the receiving action performed by the communication node in the method described in the first aspect above, and the processing module is used to perform the action involving processing performed by the communication node in the method described in the first aspect above.

[0031] In one design, the device may be a communication node, or a device, module, circuit or chip configured in a communication node, or a device that can be used in conjunction with a communication node.

[0032] In a fourth aspect, the present application provides a communication device. The communication device may include a module corresponding to the method / operation / step / action described in the second aspect, and the module may be a hardware circuit, or software, or a combination of a hardware circuit and software.

[0033] In one design, the apparatus may include a processing module and a communication module. The communication module is used to perform the sending action and the receiving action performed by the first communication node in the method described in the second aspect above, and the processing module is used to perform the action involving processing performed by the first communication node in the method described in the second aspect above.

[0034] In one design, the device may be a communication node, or a device, module, circuit or chip configured in a communication node, or a device that can be used in conjunction with a communication node.

[0035] In a fifth aspect, a device is provided, comprising a processor and a storage medium, wherein the storage medium stores instructions, which, when executed by the processor, enable a method as in the first aspect or any possible implementation of the first aspect to be implemented, or enable a method as in the second aspect or any possible implementation of the second aspect to be implemented.

[0036] In a sixth aspect, a device is provided, comprising a processor, wherein the processor is used to process data and / or information so that a method as in the first aspect or any possible implementation of the first aspect is implemented, or a method as in the second aspect or any possible implementation of the second aspect is implemented.

[0037] In one design, the device may be a communication node, or a device, module, circuit or chip configured in a communication node, or a device that can be used in conjunction with a communication node.

[0038] Optionally, the device may also include a memory, the memory being used to store programs or instructions, and the processor being used to run the programs or instructions so that the method in the first aspect or any possible implementation of the first aspect is implemented, or the method in the second aspect or any possible implementation of the second aspect is implemented.

[0039] Optionally, the device may further include the transceiver circuit, or an input / output interface.

[0040] In the seventh aspect, a chip is provided, comprising a processor, wherein the processor is used to run a program or instruction so that the method in the first aspect or any possible implementation of the first aspect is implemented, or the method in the second aspect or any possible implementation of the second aspect is implemented.

[0041] Optionally, the chip may further include a memory for storing programs or instructions. Optionally, the chip may further include the transceiver circuit, or an input / output interface.

[0042] In an eighth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes instructions, which, when executed by a processor, enables the method in the first aspect or any possible implementation of the first aspect to be implemented, or enables the method in the second aspect or any possible implementation of the second aspect to be implemented.

[0043] In a ninth aspect, a computer program product is provided, the computer program product comprising computer program code or instructions, which, when executed, enables the method in the first aspect or any possible implementation of the first aspect to be implemented, or enables the method in the second aspect or any possible implementation of the second aspect to be implemented.

[0044] In a tenth aspect, a communication system is provided, which includes a combination of one or more of the following devices: a communication device that executes the first aspect or any possible implementation of the first aspect, or a communication device that executes the second aspect or any possible implementation of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of a communication system applicable to an embodiment of the present application;

[0046] Figure 2 is a schematic diagram of a communication system applicable to an embodiment of the present application;

[0047] Figure 3 An exemplary flow chart of a communication method according to an embodiment of the present application;

[0048] Figure 4 An exemplary diagram of a resource pattern of an embodiment of the present application;

[0049] Figure 5 An exemplary diagram of a resource pattern of another embodiment of the present application;

[0050] Figure 6 An exemplary flow chart of a communication method according to another embodiment of the present application;

[0051] Figure 7 An exemplary flow chart of a communication method according to another embodiment of the present application;

[0052] Figure 8 An exemplary structural diagram of the communication device of the present application;

[0053] Fig. 9Another exemplary structural diagram of the communication device of the present application. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0055] In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with substantially the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference.

[0056] It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0057] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0058] The technical solution provided in the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, open radio access network (open radio access network, ORAN), wireless local area network (wireless local area network, WLAN) system, satellite communication system, future communication system, such as the sixth generation (6th generation, 6G) mobile communication system, or a fusion system of multiple systems, etc. The technical solution provided in the present application can also be applied to device to device (D2D) communication, vehicle to everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of things (IoT) communication system or other communication systems.

[0059] Figure 1 Schematic diagram of a communication system applicable to the communication method of the embodiment of the present application. Figure 1 As shown, the communication system 100 may include a network device 110 and a terminal device 130 , as well as communication nodes 121 to 127 .

[0060] Understandably, Figure 1 The number of network devices, communication nodes and terminal devices in the communication system shown, as well as the communication link method, are merely examples. The communication system to which the communication method of the embodiment of the present application is applicable may include more or fewer devices, for example, more network devices, more or fewer communication nodes, more terminal devices, and the communication links between communication nodes may be linked in other ways.

[0061] In the technical solution provided in the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

[0062] The terminal device may be a device that provides voice / data, such as a handheld device or a vehicle-mounted device with a wireless connection function. At present, some examples of terminals are: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, wearable devices, terminal devices in 5G networks or future evolved public land mobile communication networks (public land mobile The embodiments of the present application do not limit this.

[0063] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0064] The network device in the embodiment of the present application may be referred to as an access network device or a radio access network device, such as a base station. The network device in the embodiment of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. Base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station, auxiliary station, multi-standard wireless (motor slide retainer, MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), radio unit (RU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device. The base station may also be a mobile switching center and a device that performs the base station function in D2D, V2X, and M2M communications, a network side device in a 6G network, and a device that performs the base station function in future communication systems. The base station can support networks with the same or different access technologies. Optionally, the RAN node may also be a server, a wearable device, a vehicle or an on-board device, etc. For example, the access network device in the vehicle to everything (V2X) technology may be a road side unit (RSU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.In some deployments, the network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit control plane (central unit-control plane, CU-CP)) and a user plane CU node (central unit user plane (central unit-user plane, CU-UP)) and a DU node. For example, the network device may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0065] In some deployments, the RAN node may be a CU, DU, CU-CP, CU-UP, or RU. The CU and DU may be configured separately or included in the same network element, such as a BBU. The RU may be included in a radio frequency device or radio frequency unit, such as an RRU, AAU, or RRH.

[0066] The RAN node may support one or more types of fronthaul interfaces, and different fronthaul interfaces correspond to DUs and RUs with different functions. If the fronthaul interface between the DU and the RU is a common public radio interface (CPRI), the DU is configured to implement one or more baseband functions, and the RU is configured to implement one or more radio frequency functions. If the fronthaul interface between the DU and the RU is another interface, relative to the CPRI, part of the downlink and / or uplink baseband functions, such as, for downlink, one or more of precoding, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / cyclic prefix (CP) are moved from the DU to the RU for implementation, and for uplink, one or more of digital beamforming (BF), or fast Fourier transform (FFT) / cyclic prefix (CP) are moved from the DU to the RU for implementation. In a possible implementation, the interface may be an enhanced common public radio interface (eCPRI). In the eCPRI architecture, the division between DU and RU is different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, F.

[0067] Taking eCPRI Cat A as an example, for downlink transmission, based on layer mapping, the DU is configured to implement layer mapping and one or more functions before it (i.e., one or more functions of coding, rate matching, scrambling, modulation, and layer mapping), while other functions after layer mapping (e.g., RE mapping, digital beamforming (BF), or one or more functions of inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP)) are moved to the RU for implementation. For uplink transmission, based on de-RE mapping, the DU is configured to implement de-mapping and one or more functions before it (i.e., one or more functions of decoding, de-rate matching, de-scrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and de-RE mapping), while other functions after de-mapping (e.g., one or more functions of digital BF or fast Fourier transform (FFT) / removing CP) are moved to the RU for implementation. It can be understood that for the functional description of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol and will not be repeated here.

[0068] In one possible design, the processing unit for implementing the baseband function in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing the baseband function in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0069] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. Any unit in the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0070] In the technical solution provided by the present application, a communication node may include an access part and a terminal part, wherein the terminal part is used to execute a terminal standard process and / or implement a terminal standard behavior, and the access part is used to terminate the interface between the communication node and the terminal device or to terminate the interface between the communication node and the next hop communication node. The access part may also be referred to as a base station part, an access unit, a base station function or a distributed unit, and the terminal part may also be referred to as a terminal function.

[0071] It can be understood that the terminal standard process mentioned here includes the process that can be executed by the terminal as specified in the communication protocol, and the terminal standard behavior mentioned here includes the behavior that can be implemented by the terminal as specified in the communication protocol.

[0072] The communication node in the embodiment of the present application can be a network device including an access part and a terminal part, or it can be a terminal device including an access part and a terminal part.

[0073] The communication node in the embodiment of the present application may be referred to as a wireless relay node (relay node, RN), abbreviated as a relay node, or may be referred to as a relay device.

[0074] As an example, a relay node establishes a wireless backhaul link with one or more upper-level nodes and accesses the core network through the upper-level nodes. The upper-level node can control the relay node through various signaling, such as data scheduling, timing modulation or power control. In addition, the relay node can provide services for multiple lower-level nodes.

[0075] The upper node of the relay node can be a base station or another relay node. The lower node of the relay node can be a terminal device or another relay node. Optionally, the upper node can also be called an upstream node, a parent node or a previous hop node, and the lower node can also be called a downstream node, a child node or a next hop node.

[0076] As an example, the communication node in the embodiment of the present application may be an integrated access and backhaul (IAB) node.

[0077] When the communication node is an IAB node, the terminal part can be IAB-MT (terminates the Uu interface to the parent node using the procedures and behaviours specified for UEs unless stated otherwise), and the access part can be IAB-DU (terminate the NR access interface to UEs and next-hop IAB-nodes, and to terminate the F1 protocol to the gNB-CU functionality).

[0078] The IAB node integrates two parts: a mobile termination (MT) and a distributed unit (DU). When the IAB node faces its parent node, it can be regarded as a terminal. At this time, the IAB node plays the role of MT. When the IAB node faces its child node, it can be regarded as a network device. The child node may be a terminal or the terminal part of another IAB node. An IAB node can establish a backhaul connection with at least one parent node of the IAB node through the MT part. The DU part of an IAB node can provide access services to the MT part of a terminal or other IAB nodes.

[0079] In the embodiments of the present application, one or more of the network devices, terminal devices, and communication nodes can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons, and satellites in the air. In the embodiments of the present application, the scenarios in which the network devices, terminal devices, and communication nodes are located are not limited. In addition, the terminal devices, network devices, and communication nodes can be hardware devices, or they can be software functions running on dedicated hardware, software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities including dedicated or general-purpose hardware devices and software functions. The present application does not limit the specific forms of terminal devices, network devices, and communication nodes.

[0080] The communication method in the embodiments of the present application can be used in any of the following scenarios: relay, wireless mesh network, IAB or ad hoc network, etc.

[0081] Figure 2 FIG. 1 is a communication diagram of an IAB network according to an embodiment of the present application. Figure 2 As shown, the terminal is connected to the host node through IAB node 2 and IAB node 1.

[0082] Among them, IAB node 1 and IAB node 2 both include a DU part and an MT part. The DU part of IAB node 2 provides access services for the terminal. The DU part of IAB node 1 provides access services for the MT part of IAB node 2. Donor-DU provides access services for the MT part of IAB node 1.

[0083] IAB node 1 and IAB node 2 can be connected to the core network through a wired link via a host node. For example, in a 5G architecture of independent networking, IAB node 1 and IAB node 2 can be connected to the core network (5G core, 5GC) of the 5G network through a wired link via a host node. In a 5G architecture of non-independent networking, IAB node 1 and IAB node 2 are connected to the evolved packet core (evolved packet core, EPC) via an evolved NodeB (eNB) on the control plane, and connected to the EPC via a host node and eNB on the user plane.

[0084] The link between the IAB node 1 and the terminal may be referred to as an access link (AL), and the link between the IAB node 1 and the IAB node 2 and the link between the IAB node 2 and the host node may be referred to as a backhaul link (BL).

[0085] The backhaul link and the access link may perform resource multiplexing, for example, in a time division manner.

[0086] Figure 2 The IAB network scenario shown is only exemplary. In the IAB network scenario combining multi-hop and multi-connection, there are many other possibilities for IAB networking. For example, a host node and an IAB node under another host node can form a dual connection to serve a terminal, etc., which will not be listed here one by one.

[0087] The host node may send configuration information to IAB node 1 and IAB node 2 through the F1 interface. Specifically, the CU in the host node sends configuration information to the DU in IAB node 1 through the F1 interface, and the CU in the host node sends configuration information to the DU in IAB node 2 through the F1 interface.

[0088] The F1 connection is not a physical direct connection, but a logical connection. In fact, the F1 connection between the DU of the host node and the CU of each IAB node is physically realized through the NR Uu interface between the MT of each intermediate IAB node and the DU of each IAB node. However, since the DU of the host node can communicate with the CU of the IAB node, it can be considered that the DU of the host node can logically have an F1 interface with the CU of the IAB node.

[0089] One way for the host node to configure resources (such as air interface resources) for IAB node 1 and IAB node 2 is as follows: the host node configures the indication resource through the FI interface between the host node and the IAB1 node. This resource allocation method actually requires the transmission of resource configuration information through hop by hop, so there will be problems such as large configuration delay and large configuration signaling overhead. Other network structures and Figure 2 This problem also exists in the same or similar scenarios.

[0090] In response to the above-mentioned problems, the present application proposes a new technical solution. In the technical solution proposed in the present application, a communication node indicates to other communication nodes the resources available for data channel transmission and / or control channel transmission of its access part, so that other communication nodes can select the resources available for data channel transmission and / or control channel transmission of their own access part based on the indication, so as to achieve that the communication node can determine the available resources of its access part for control channel and / or data channel transmission through a shorter delay, which can save signaling overhead and reduce communication interference between communication nodes.

[0091] Figure 3 FIG. 1 is a flow chart of a communication method according to an embodiment of the present application. Figure 3 As shown, the method may include S310 and S320.

[0092] S310 , communication node 1 sends first information, the first information is used to indicate first resources, the first resources include resources available for data channel transmission and / or control channel transmission in the access part of communication node 1 . Correspondingly, communication node 2 receives the first information from communication node 1 .

[0093] As an example, communication node 1 may be Figure 1 Any communication node in the system shown, communication node 2 can be Figure 1 Any communication node other than the communication node 1 in the communication system shown can receive the signal sent by the communication node 1.

[0094] It can be understood that the communication node 1 first obtains the first information and then sends the first information. For example, the communication node 1 generates the first information and sends the first information.

[0095] As an example, communication node 1 may be Figure 2 For any IAB node in the system shown, communication node 2 can be Figure 2 In the communication system shown, any IAB node other than the IAB node 1 can receive the signal sent by the IAB node 1.

[0096] It can be understood that the first resource includes resources available for the access part of the communication node 1 to perform data channel transmission and / or control channel transmission, and may include the following meanings: the first resource is an alternative resource for the access part of the communication node 1 to perform data channel transmission and / or control channel transmission, that is, when the communication node 1 performs data channel transmission and / or control channel transmission, the access part of the communication node 1 can select resources from the first resource to perform data channel transmission and / or control channel transmission, or it may be that the first resource is configured to the communication node 1 or to the access part of the communication node 1 for data channel transmission and / or control channel transmission, but in the end the first resource may actually be used for data channel transmission and / or control channel transmission, or may not actually be used for data channel transmission and / or control channel transmission.

[0097] S320, the communication node 2 determines a second resource according to the first information, where the second resource includes resources available in the access part of the communication node 2 for data channel transmission and / or control channel transmission.

[0098] The meaning of the second resource may refer to the meaning of the first resource in S310, for example, the communication node 1 in the meaning of the first resource is replaced by the communication node 2, which will not be repeated here.

[0099] In this embodiment, more communication nodes having the same or similar behaviors as the communication node 1 may be included, so that the communication node 2 can determine the second resource of the communication node 2 itself based on the resources indicated by these communication nodes. Compared with configuring the second resource for the communication node 2 through the host node, this method does not require the host node to transmit the configuration information of the second resource through the communication nodes between the host node and the communication node 2 in a hop-by-hop manner, thereby saving the delay of the communication node 2 in determining the second resource.

[0100] As an example, the second resource does not include the first resource. For example, the communication node 2 determines other resources other than the first resource as the second resource. This implementation method can avoid interference between the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the second resource, thereby improving the transmission performance of the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the second resource.

[0101] As an example, the second resource is orthogonal to the first resource. This approach can also avoid interference between the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the second resource, thereby improving the transmission performance of the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the second resource.

[0102] As an example, the second resource includes all or part of the first resource. In this way, the access part of the communication node 2 reuses the first resource to transmit the data channel and / or the control channel, which can improve the utilization rate of the resource.

[0103] In this embodiment, as an example, communication node 2 receives first information from communication node 2, which may include: the terminal part of communication node 2 receives the first information from communication node 1; wherein, communication node 2 determines the second resource based on the first information, which may include: the terminal part of the communication node determines the second resource based on the first information, and the terminal part of communication node 2 sends the second information to the access part of communication node 2, and the second information is used to indicate the second resource.

[0104] As an example, the terminal part of communication node 2 sends the second information to the access part of communication node 2, including: the terminal part of communication node 2 sends the second information to the access part of communication node 2 through the internal interface between the terminal part and the access part in the communication node.

[0105] In this embodiment, as an example, communication node 2 receives first information from communication node 2, which may include: the terminal part of communication node 2 receives the first information from communication node 1; wherein communication node 2 determines the second resource based on the first information, which may include: the access part of the communication node determines the second resource based on the first information.

[0106] For example, after the terminal part of communication node 2 receives the first information, it sends the first information to the access part of communication node 2 through the internal interface between the terminal part and the access part in the communication node, and then the access part of communication node 2 determines the second resource based on the first information.

[0107] In this embodiment, as an example, the first information indicating the first resource may include: the first information indicates a resource pattern, and the resource pattern represents the distribution of the first resource in at least one of the following dimensions: time domain, frequency domain, or spatial domain. For ease of description, the resource pattern indicated by the first information is called a first resource pattern, referred to as a first pattern.

[0108] As an example, the first information may include identification information of the first pattern.

[0109] As an example, the first pattern may be one of a plurality of resource patterns, each of which indicates the distribution of a corresponding resource in at least one dimension, and the at least one dimension may include one or more of a time domain dimension, a frequency domain dimension, and a spatial domain dimension, and the distribution of resources indicated by any two resource patterns in the plurality of resource patterns in the one or more dimensions is different. In this implementation, the first information may include an identifier of the first pattern in the plurality of resource patterns.

[0110] Optionally, the resource indicated by any one of the multiple resource patterns may be an available resource or an unavailable resource.

[0111] As an example, the frequency domain resources within the system bandwidth are divided into three segments, each segment is called a frequency domain resource set, and three frequency domain resource sets are obtained. Each frequency domain resource set includes continuous frequency domain resources. These three frequency domain resource sets can be recorded as three resource patterns.

[0112] Figure 4 This is an exemplary distribution diagram of the three resource patterns of this application in the frequency domain dimension. Figure 4 As shown, pattern 0 indicates that the frequency domain resources within f0~f1 are an available resource set, on which data channels or control channels can be transmitted; pattern 1 indicates that the frequency domain resources within f1~f2 are an available resource set, on which data channels or control channels can be transmitted; pattern 2 indicates that the frequency domain resources within f2~f3 are an available resource set, on which data channels or control channels can be transmitted.

[0113] As an example, the time domain resources are periodically divided into three sections, each section is called a time domain resource set, and three time domain resource sets are obtained. Each time domain resource set includes periodically repeated time domain resources, and these three time domain resource sets are recorded as three resource patterns.

[0114] Figure 5 This is an exemplary distribution diagram of the three resource patterns of this application in the time domain dimension. Figure 5As shown, pattern 0 indicates that system frame numbers (SFN) such as SFN 0, SFN3, SFN 6, etc. are an available resource set, that is, a system frame with a period of 3 system frames and an offset of 0 system frames is an available time domain resource set, on which data channels can be transmitted or control channels can be transmitted; pattern 1 indicates that SFNs such as SFN 1, SFN4, SFN 7, etc. are an available resource set, that is, a system frame with a period of 3 system frames and an offset of 1 system frame is an available time domain resource set, on which data channels can be transmitted or control channels can be transmitted; pattern 2 indicates that SFNs such as SFN2, SFN5, SFN 8, etc. are an available resource set, that is, a system frame with a period of 3 system frames and an offset of 2 system frames is an available time domain resource set, on which data channels can be transmitted or control channels can be transmitted.

[0115] In this embodiment, as an example, each resource pattern has corresponding resource pattern identification information, and the identification information of any two resource patterns is different. The first information may indicate the first resource pattern through the identification information of the first resource pattern.

[0116] As an example, the multiple resource patterns may be predefined by a protocol, and the pattern identification information of the multiple resource patterns may also be predefined by a protocol.

[0117] In this embodiment, as an example, the protocol may also predefine multiple resource pattern sets, each resource pattern set including one or more resource patterns. For example, the first resource pattern set includes one resource pattern, the second resource pattern set includes two resource patterns, and the third resource pattern set includes two resource patterns. Each resource pattern set may have corresponding resource pattern set identification information, and the identification information of any two resource pattern sets is different. In this example, optionally, the first information may include the resource pattern identification information of the first resource pattern, and may also include the resource pattern set identification information of the resource pattern set to which the first resource pattern belongs.

[0118] In this embodiment, as an example, the first information may be carried in at least one of the following messages: a system message, a radio resource control (RRC) configuration message, and control information.

[0119] When the first information is carried in a system message, the first information can be carried in a newly added IE in the system information and / or the IE in the system information can be reused to carry the first information, or the first information can be an extended meaning of the reused IE or carried in an existing information element with an updated meaning.

[0120] When the first information is carried in a system message, as an example, the first information may be carried in a synchronization signal block (synchronization signal / PBCH block, SSB).

[0121] When the first information is carried in a system message, as an example, the first information may be carried in a master indication block (MIB).

[0122] When the first information is carried in the MIB, as an example, the first information can be carried in the MIB in at least one of the following ways: carried in a new information element (IE) introduced in the MIB, carried in a reserved bit in the MIB, or multiplexed in an occupied IE in the MIB.

[0123] As an example, the occupied IE may be included in an IE for carrying at least one of the following information: BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred. For example, the first information may be carried in an IE for carrying BCCH-BCH-MessageType, or the first information may be carried in an IE for carrying subCarrierSpacingCommon, or the first information may be carried in an IE for carrying cellBarred. An example of the first information being carried in the MIB is shown in Table 1.

[0124] Table 1 IE indication resource pattern in multiplexed MIB

[0125]

[0126]

[0127] When the first information is carried in a system message, as an example, the first information may be carried in SIB1.

[0128] When the first information can be carried in SIB1, as an example, the first information can be carried in a new IE introduced in SIB1, or in a new IE introduced in a sub-IE of SIB1, or the IE in SIB1 can be reused to carry the first information.

[0129] When the IE in SIB1 is multiplexed to carry the first information, as an example, the multiplexed IE may be an IE used to carry ServingCellConfigCommon.

[0130] When the first information is carried in a control message, as an example, the first information may be carried in downlink control information (DCI).

[0131] When the first information is carried in DCI, as an example, the format of the DCI may be a format newly added in the protocol.

[0132] When the first information is carried in DCI, as an example, the DCI may be a broadcast DCI or a multicast DCI.

[0133] As an example, the DCI carrying the first information may be scrambled using a public radio network temporary identifier (RNTI) or a group RNTI. The public RNTI or the group RNTI may be understood as an RNTI used by a group of communication nodes to receive the DCI.

[0134] As an example, the common RNTI or group RNTI may be issued via a system message.

[0135] As an example, the system message for sending the common RNTI or group RNTI may also include indication information such as the DCI search space and / or the DCI period, where the DCI search space is used by the communication node to search for the above-mentioned DCI, and the DCI period is used to indicate the period for the communication node to send DCI.

[0136] In the embodiment of the present application, as an example, the communication node 2 may be an idle state node, a connected state node, or an inactive state node.

[0137] A schematic flow chart of a communication method according to another embodiment of the present application is shown in Figure 6. The method includes S610, S615 and S620.

[0138] S610, communication node 1 sends first information, the first information is used to indicate first resources, the first resources include resources available for data channel transmission and / or control channel transmission in the access part of communication node 1. Correspondingly, communication node 2 receives the first information from communication node 1.

[0139] It can be understood that, in addition to communication node 1, one or more other communication nodes may also send their corresponding resource indication information, and the resource indication information sent by each communication node is used to indicate the resources available for the access part of the communication node to perform data channel transmission and / or control channel transmission. Correspondingly, communication node 2 can also receive resource indication information sent by other communication nodes.

[0140] This step may refer to S310 and will not be described in detail here.

[0141] S615, communication node 1 sends a reference signal. Correspondingly, communication node 2 receives the reference signal.

[0142] As an example, the reference signal may be an SSB or a channel state information reference signal (CSI-RS).

[0143] It can be understood that, in addition to communication node 1, one or more other communication nodes may also send reference signals. Accordingly, communication node 2 may also receive reference signals sent by other communication nodes.

[0144] It can be understood that this embodiment does not limit the execution order of S610 and S615.

[0145] S620, the communication node 2 determines a second resource according to the first information and the measurement result of the reference signal, where the second resource includes resources available in the access part of the communication node 2 for data channel transmission and / or control channel transmission.

[0146] As an example, the measurement result of the reference signal may include the measurement result of at least one of the following measurements: received signal strength indication (RSSI) measurement, reference signal received power (RSRP) measurement, or reference signal received quality (RSRQ).

[0147] In this embodiment, more communication nodes having the same or similar behaviors as the communication node 1 may be included, so that the communication node 2 can determine the second resource of the communication node 2 itself based on the resources indicated by these communication nodes. Compared with configuring the second resource for the communication node 2 through the host node, this method does not require the host node to transmit the configuration information of the second resource through the communication nodes between the host node and the communication node 2 in a hop-by-hop manner, thereby saving the delay of the communication node 2 in determining the second resource.

[0148] As an example, the second resource does not include the first resource. For example, the communication node 2 determines other resources other than the first resource as the second resource. This implementation method can avoid interference between the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the second resource, thereby improving the transmission performance of the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the first resource.

[0149] As an example, the second resource is orthogonal to the first resource. This approach can also avoid interference between the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the first resource, thereby improving the transmission performance of the data channel and / or control channel transmitted by the access part of the communication node 2 using the second resource and the data channel and / or control channel transmitted by the communication node 1 using the first resource.

[0150] As an example, the second resource includes all or part of the first resource. In this way, the access part of the communication node 2 reuses the first resource to transmit the data channel and / or the control channel, which can improve the utilization rate of the resource.

[0151] As an example, the terminal part of the communication node 2 receives a reference signal and obtains a measurement result, as well as obtains first information, and indicates the measurement result and the first information to the access part of the communication node 2 through an internal interface. The access part of the communication node 2 determines the second resource based on the measurement result and the first information.

[0152] As an example, the terminal part of the communication node 2 receives the reference signal and obtains the measurement result, as well as the first information, determines the second resource based on the measurement result and the first information, and indicates the second resource to the access part of the communication node 2 through the internal interface.

[0153] When the communication node 2 determines the second resource based on the measurement results of the first information and the reference signal, as an example, the communication node 2 compares the measurement result with the result threshold of the corresponding measurement item. If the measurement result of at least one measurement item in the measurement item is lower than the result threshold of the corresponding measurement item, or the measurement results of multiple measurement phases are all lower than the result threshold of the corresponding measurement item, then the first resource can be used as the second resource.

[0154] When the communication node 2 determines the second resource according to the measurement result of the first information and the reference signal, as an example, the communication node 2 compares the measurement result with the result threshold of the corresponding measurement item. If the measurement result of at least one measurement item is higher than the result threshold of the corresponding measurement item, or the measurement results of multiple measurement items are higher than the result threshold of the corresponding measurement item, then the first resource is used as an unavailable resource of the communication node 2, and one of the predefined resources other than the first resource can be selected as the second resource. For example, other resource patterns other than the first resource pattern are selected from the resource pattern set where the first resource pattern is located as the resource pattern of the second resource.

[0155] It can be understood that the communication node 2 can determine the second resource based on the resource indication information sent by multiple communication nodes and the measurement results of the reference signals sent by the multiple communication nodes.

[0156] As an example, when communication node 2 determines the second resource based on the measurement results of the first information and the reference signal, a measurement result is determined as the measurement result corresponding to communication node 1 based on the measurement results of multiple measurement items. If the measurement result of communication node 1 is smaller than the measurement result corresponding to any other communication node, the first resource can be used as the second resource.

[0157] In other words, communication node 2 receives reference signals from multiple communication nodes, measures the reference of each communication node, obtains multiple measurement results of the reference signal of each communication node, and determines a measurement result based on the multiple measurement results corresponding to each communication node as the final measurement result corresponding to the communication node. In this way, multiple communication nodes correspond to multiple final measurement results, and then the first resource of the communication node corresponding to the minimum value of the multiple final measurement results is used as the second resource.

[0158] When determining a measurement result as the measurement result corresponding to the communication node 1 according to the measurement results of multiple measurement items, as an example, the average value of the measurement results of the multiple measurement items is used as the measurement result corresponding to the communication node 1.

[0159] As an example, if communication node 2 is an idle node, communication node 2 initially performs a cell search, receives a system message from each of one or more communication nodes, and parses each system message to obtain resource indication information, as well as receives a reference signal sent by other one or more communication nodes and obtains a measurement result of the reference signal, and then determines the second resource based on multiple resource indication information and the measurement results obtained by measuring the reference signals of multiple communication nodes.

[0160] As an example, if communication node 2 is a connected node, communication node 2 receives reference signals from other communication nodes or neighboring cells, obtains measurement results of the reference signals, then receives and parses system messages from other nodes, obtains resource indication information contained in the system message, and determines the second resource based on the measurement results and the resource indication information.

[0161] In order to better understand the technical solutions in the above embodiments of the present application, Figure 7 Take the example of the technical solution of this application. Figure 7 As shown in (a) in the figure, the communication network includes communication nodes 1, 2, 3 and 4. The terminal part of communication node 1 is connected to the access part of communication node 3, the terminal part of communication node 3 is connected to the access part of communication node 2, and the terminal part of communication node 2 is connected to the access part of communication node 1, forming an interconnection scenario.

[0162] like Figure 7 As shown in (c) in the figure, three resource patterns are predefined, which are respectively denoted as pattern 0, pattern 1 and pattern 2. Pattern 0 indicates that data transmission can be performed on system frames with frame numbers such as SFN 0, SFN3, SFN 6, that is, pattern 0 indicates that system frames with a period of 3 system frames and an offset of 0 system frames are available time domain resources; pattern 1 indicates that data transmission can be performed on system frames with frame numbers such as SFN 1, SFN 4, SFN 7, etc., that is, pattern 1 indicates that system frames with a period of 3 system frames and an offset of 1 system frame are available time domain resources; pattern 2 indicates that data transmission can be performed on system frames with frame numbers such as SFN 2, SFN 5, SFN 8, etc., that is, pattern 2 indicates that system frames with a period of 3 system frames and an offset of 2 system frames are available time domain resources. It can be understood that Figure 7 In (c), a system frame includes 10 subframes. If a "U" symbol is recorded in a subframe, it means that the subframe is used to transmit uplink data. If a "D" symbol is recorded in a subframe, it means that the subframe is used to transmit downlink data.

[0163] The access part of communication node 1 uses the resources in pattern 0 to transmit data with the terminal part of communication node 2, the access part of communication node 2 uses the resources in pattern 1 to transmit data with the terminal part of communication node 3, and the access part of communication node 3 uses the resources in pattern 2 to transmit data with the terminal part of communication node 1.

[0164] Communication node 1 sends a system message indicating that the pattern of resources used by its own access part is pattern 0, communication node 2 sends a system message indicating that the pattern of resources used by its own access part is pattern 1, and communication node 3 sends a system message indicating that the pattern of resources used by its own access part is pattern 2. In addition, communication node 1, communication node 2, and communication node 3 periodically send reference signals, such as SSB.

[0165] Communication node 4 receives system messages sent by communication node 1, communication node 2, and communication node 3, respectively, and communication node 4 receives reference signals sent by communication node 1, communication node 2, and communication node 3, respectively, and measures the received reference signals to obtain channel measurement results between communication node 4 and communication node 1, communication node 2, and communication node 3, respectively, such as obtaining RSRP measurement results of SSB. Communication node 4 can determine the resources available for data transmission based on the measurement results and the resource indication information obtained from the system messages sent by communication node 1, communication node 2, and communication node 3.

[0166] As an example, if the channel measurement result between communication node 4 and communication node 3 is the best, the channel quality result between communication node 1 is better, and the channel measurement result between communication node 2 is worse, for example, the RSRP obtained by measuring the reference signal sent by communication node 3 is higher than the RSRP obtained by measuring the reference signal sent by communication node 1, and the RSRP obtained by measuring the reference signal sent by communication node 1 is higher than the RSRP obtained by measuring the reference signal sent by communication node 2, then, based on the better channel quality results between communication node 4 and communication node 3 and communication node 1, the resources available for the access part of communication node 4 need to be orthogonal to the available resources of communication node 3 and communication node 1, and based on the poor channel measurement result between communication node 4 and communication node 2, communication node 4 can multiplex resources with communication node 2, so that communication node 4 can finally determine that the resources indicated by pattern 1 are the available resources of the access part of communication node 4.

[0167] It should be understood that in the present application, indication includes direct indication (also called explicit indication) and implicit indication. Wherein, direct indication of information A means including the information A; implicit indication of information A means indicating information A through the correspondence between information A and information B and direct indication of information B. Wherein, the correspondence between information A and information B can be predefined, pre-stored, pre-burned, or pre-configured.

[0168] It should be understood that in the present application, information C is used to determine information D, which includes information D being determined based only on information C, and information D being determined based on information C and other information. In addition, information C is used to determine information D, and it can also be indirectly determined, for example, information D is determined based on information E, and information E is determined based on information C.

[0169] In addition, "device A sends information A to device B" in each embodiment of the present application can be understood as the destination of the information A or the intermediate device in the transmission path between the destination and the device B, which may include directly or indirectly sending information to device B. "Device B receives information A from device A" can be understood as the source of the information A or the intermediate device in the transmission path between the source and the device A, which may include directly or indirectly receiving information from device A. The information may be processed as necessary between the source and the destination of the information transmission, such as format changes, but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly and will not be repeated here.

[0170] The present application also provides a communication device, which can be installed in a communication node or used in combination with a communication node, so that the communication node implements the functions implemented by the communication node 1 and / or the communication node 2 in any of the aforementioned embodiments. For example, the device can be a chip system. The chip system can be composed of a chip, or it can include a chip and other discrete devices. For another example, the device can be a computer program product.

[0171] Figure 8 FIG. 1 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. Figure 8 As shown, the apparatus 800 may include a processing module 801 and a communication module 802 .

[0172] As a first example, the apparatus 800 may be used to implement Figure 3 The embodiment shown is a communication method implemented by the communication node 1. For example, the processing module 801 is used to implement the steps related to processing such as determination and judgment performed by the communication node 1 in S310, and the communication module 802 is used to implement the steps of sending and / or receiving performed by the communication node 1 in S310.

[0173] As a second example, the apparatus 800 may be used to implement Figure 3 The embodiment shown is a communication method implemented by the communication node 2. For example, the processing module 801 is used to implement the steps related to processing such as determination and judgment performed by the communication node 2 in S320, and the communication module 802 is used to implement the steps of sending and / or receiving performed by the communication node 2 in S310.

[0174] As a third example, the apparatus 800 may be used to implement Figure 6The embodiment shown is a communication method implemented by the communication node 1. For example, the processing module 801 is used to implement the steps related to processing such as determination and judgment performed by the communication node 1 in S610 and S615, and the communication module 802 is used to implement the steps of sending and / or receiving performed by the communication node 1 in S610 and S615.

[0175] As a fourth example, the apparatus 800 may be used to implement Figure 6 The embodiment shown is a communication method implemented by the communication node 2. For example, the processing module 801 is used to implement the steps related to the determination and judgment performed by the communication node 2 in S620, and the communication module 802 is used to implement the steps of sending and / or receiving performed by the communication node 2 in S610 and S615. As a third example, the apparatus 800 can be used to implement Figure 6 The embodiment shown is a communication method implemented by the communication node 1. For example, the processing module 801 is used to implement the steps related to processing such as determination and judgment performed by the communication node 1 in S610 and S615, and the communication module 802 is used to implement the steps of sending and / or receiving performed by the communication node 1 in S610 and S615.

[0176] As a fifth example, the apparatus 800 may be used to implement Figure 7 In the embodiment shown, the communication method is implemented by the communication node 1, the communication node 2 or the communication node 3. For example, the processing module 801 is used to implement Figure 7 In the embodiment shown, the communication module 802 is used to implement the steps related to determination, judgment, etc. performed by the communication node 1, the communication node 2, or the communication node 3. Figure 7 In the illustrated embodiment, the steps of sending and / or receiving are performed by communication node 1, communication node 2 or communication node 3.

[0177] As a sixth example, the apparatus 800 may be used to implement Figure 7 The communication method implemented by the communication node 4 in the illustrated embodiment. For example, the processing module 801 is used to implement Figure 7 In the embodiment shown, the communication node 4 performs the steps of determining, judging, and processing related to the communication module 802. Figure 7 In the illustrated embodiment, the steps of sending and / or receiving are performed by the communication node 4 .

[0178] Fig. 9 This is a schematic diagram of the structure of a communication device provided by another embodiment of the present application. Fig. 9As shown, the device 900 includes a processor 901 and a communication circuit 902. The processor 901 and the communication circuit 902 are coupled to each other. It is understood that the communication circuit 902 can be a transceiver or an input-output interface. Optionally, the device 900 may also include a memory 903 for storing instructions executed by the processor 901 or storing input data required by the processor 901 to run the instructions or storing data generated after the processor 901 runs the instructions. It is understood that the memory 903 may be located outside the processor 901, or inside the processor 901.

[0179] As an example, the processor 901 is used to implement the functions of the processing module 801 , and the communication circuit 902 is used to implement the functions of the communication module 802 .

[0180] The device 900 may be a communication node, or a chip used in a communication node. It is understandable that the communication circuit 902 may be a transceiver and / or an interface circuit.

[0181] In some embodiments of the present application, a computer-readable storage medium is also provided, which includes computer instructions. When the computer instructions are executed on a processor, the method implemented by communication node 1, communication node 2, communication node 3 or communication node 4 in any of the above embodiments can be implemented.

[0182] In some embodiments of the present application, a communication system is also provided, which can implement the method implemented by multiple communication nodes 1, communication node 2, communication node 3 and communication node 4 in any of the above embodiments.

[0183] It is understood that the processor in the embodiments of the present application can be the following devices or all or part of the circuits in the following devices for processing functions: central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0184] The method steps in the embodiments of the present application can be implemented by hardware, or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium can also be present in a network device or a terminal device as discrete components.

[0185] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction 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 program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk.

[0186] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0187] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that: Applied to a communication node, the communication node comprises an access part and a terminal part, the terminal part is used to execute a terminal standard process and / or implement a terminal standard behavior, the access part is used to terminate an interface to a terminal or a next-hop communication node, the method comprises: First information is sent, where the first information is used to indicate first resources, and the first resources include resources available for the access part to perform data channel transmission and / or control channel transmission.

2. A communication method, characterized in that: Applied to a first communication node, the first communication node comprises an access part and a terminal part, the terminal part is used to execute a terminal standard process and / or implement a terminal standard behavior, the access part is used to terminate an interface to a terminal or a next-hop communication node, the method comprises: receiving first information from a second communication node, the second communication node comprising the access part and the terminal part, the first information being used to indicate a first resource, the first resource comprising a resource available for data channel transmission and / or control channel transmission in the access part of the second communication node; Determine, based on the first information, available resources for data channel transmission and / or control channel transmission in the access part of the first communication node.

3. The method according to claim 2, characterized in that The method further comprises: receiving a reference signal from the second communication node; The determining, according to the first information, resources available for data channel transmission and / or control channel transmission in the access part of the first communication node includes: Determine available resources for data channel transmission and / or control channel transmission in the access part of the first communication node based on the first information and the measurement result of the reference signal.

4. The method according to claim 3, characterized in that The receiving first information from the second communication node comprises: receiving, via a terminal portion in the first communication node, the first information from the second communication node; The determining, according to the first information and the measurement result of the reference signal, resources available for data channel transmission and / or control channel transmission in the access part of the first communication node includes: Determine, by an access part in the first communication node, resources available for data channel transmission and / or control channel transmission by an access part in the first communication node according to the first information and the measurement result.

5. The method according to any one of claims 1 to 4, characterized in that The first information used to indicate the first resource includes: the first information used to indicate a first pattern, the first pattern representing the distribution of the first resource in at least one of the following dimensions: time domain, frequency domain, or spatial domain.

6. The method according to any one of claims 1 to 5, characterized in that The first information is carried in a system message.

7. The method according to claim 6, characterized in that The system message is a main information block MIB or a secondary information block SIB1.

8. The method according to claim 6 or 7, characterized in that: The first information is carried in a first information element IE in the system message, and the first IE is also used to carry other information besides the first information.

9. The method according to claim 8, characterized in that The first information is carried in the MIB, and the other information includes at least one of the following information: BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred.

10. The method according to claim 8, characterized in that The first information is carried in ServingCellConfigCommon in SIB1.

11. The method according to any one of claims 1 to 5, characterized in that The first information is carried in a radio resource control RRC configuration message.

12. The method according to any one of claims 1 to 5, characterized in that The first information is carried in downlink control information DCI.

13. The method according to claim 12, characterized in that The cyclic redundancy check code CRC of the DCI is scrambled by a first radio network temporary identifier RNTI, and the first RNTI is used for a terminal part in a group of communication nodes to receive the DCI.

14. A communication device, characterized in that: The method comprises a functional module for implementing the method according to any one of claims 1 to 13.

15. A communication device, characterized in that: include: Memory and processor; The memory is used to store program instructions; The processor is configured to execute program instructions in the memory to implement the method according to any one of claims 1 to 13.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program code for computer execution, wherein the program code includes instructions for implementing the method according to any one of claims 1 to 13.

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