Communication method and related apparatus

Abstract

Provided in the present application are communication methods, a communication apparatus and a communication system which are applied to the field of communications. In a technical solution provided in the present application, on the basis of resource indication information of other communication nodes, a communication node comprising a terminal part and an access part determines a resource available for the access part of the communication node itself to perform data channel transmission and / or control channel transmission, the resource indication information of the other communication nodes indicating resources available for access parts of the other communication nodes to perform data channel transmission and / or control channel transmission, so as to support the communication node in determining, by means of a relatively short time delay, the available resource for the access part thereof to perform data channel transmission and / or control channel transmission.

Description

Communication method and related device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 22, 2023, with application number 202311238713.7 and application name “Communication Methods and Related Devices”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to communication methods and related devices. Background Art

[0003] In a communication system, a host node of a communication node allocates resources available for data channel transmission and / or control channel transmission in the access portion of the communication node to the communication node through nodes between the host node and the communication node. However, this allocation method results in a long latency, which affects the efficiency of the communication node.

[0004] Summary of the Invention

[0005] 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 with a shorter delay.

[0006] In the 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 procedures and / or implement terminal standard behaviors, and the access part is used to terminate the interface from the communication node to the terminal or 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.

[0007] In this 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 the 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 art, this 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.

[0008] As an example, the communication node is the communication node 1 in the embodiment shown in FIG. 3 or FIG. 6 .

[0009] In the 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 procedures 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 the access part in the second communication node for data channel transmission and / or control channel transmission available resources; determining the access part in the first communication node for data channel transmission and / or control channel transmission available resources based on the first information.

[0010] In this communication method, the first communication node determines the resources available in its own 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 own access part for data channel transmission and / or control channel transmission.

[0011] As an example, the first communication node is the communication node 2 in the embodiment shown in FIG. 3 or FIG. 6 , and the second communication node is the communication node 1 in the embodiment shown in FIG. 3 or FIG. 6 .

[0012] 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.

[0013] 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.

[0014] It can be understood that the second communication node in the second aspect may be the communication node in the first aspect.

[0015] 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.

[0016] In this implementation, optionally, the terminal part of the first communication node may also transmit the first information and the measurement result to the access part through an interface between the terminal part and the access part.

[0017] 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.

[0018] Optionally, the first pattern may be one of a plurality of resource patterns, wherein different resource patterns in 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 in the plurality of resource patterns.

[0019] Optionally, the multiple resource patterns are resource patterns in a first resource pattern set, and the first resource pattern set is one of the multiple resource pattern sets, wherein the first identifier may further include an identifier of the first resource pattern set in the multiple resource pattern sets.

[0020] This implementation method can accurately indicate the first pattern when the identifiers of resource patterns in multiple resource pattern sets are the same.

[0021] In the first and second aspects, the first information may optionally be carried in a system message. The first information is transmitted via 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.

[0022] Optionally, the system message carrying the first information may be MIB or SIB1.

[0023] Optionally, the first information may be carried in a first IE in the 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 the MIB or SIB1 to carry other information is reused to carry the first information.

[0024] When the first information is carried in the MIB, the other information may optionally include at least one of the following: BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred. For example, the IE used by the MIB or SIB1 to carry BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred may be reused to carry the first information.

[0025] When the first information is carried in SIB1, optionally, the first information may be carried in ServingCellConfigCommon in SIB1.

[0026] 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 resource utilization, and save signaling overhead.

[0027] 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).

[0028] In the first aspect and the second aspect, optionally, the first information can be carried in an RRC configuration message.

[0029] In the first aspect and the second aspect, optionally, the first information can be carried in DCI.

[0030] When the first information is carried in DCI, optionally, the CRC of the DCI carrying the first information may be scrambled by a first RNTI, where the first RNTI is used for a terminal portion in a group of communication nodes to receive the DCI.

[0031] In a third aspect, the present application provides a communication device. The communication device may include a module corresponding to each of the methods / operations / steps / actions described in the first aspect, and the module may be implemented as a hardware circuit, software, or a combination of hardware circuit and software.

[0032] In one design, the apparatus may include a processing module and a communication module. The communication module is configured to perform the sending and receiving actions performed by the communication node in the method described in the first aspect above, and the processing module is configured to perform the processing-related actions performed by the communication node in the method described in the first aspect above.

[0033] In one design, the device may be a communication node, or a device, module, circuit, chip, etc. configured and arranged in a communication node, or a device that can be used in conjunction with a communication node.

[0034] In a fourth aspect, the present application provides a communication device. The communication device may include a module corresponding to each of the methods / operations / steps / actions described in the second aspect, and the module may be implemented as a hardware circuit, software, or a combination of hardware circuit and software.

[0035] In one design, the apparatus may include a processing module and a communication module. The communication module is configured to perform the sending and receiving actions performed by the first communication node in the method described in the second aspect above, and the processing module is configured to perform the processing-related actions performed by the first communication node in the method described in the second aspect above.

[0036] In one design, the device may be a communication node, or a device, module, circuit, chip, etc. configured and arranged in a communication node, or a device that can be used in conjunction with a communication node.

[0037] 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 the method in the first aspect or any possible implementation of the first aspect to be implemented, or enable the method in the second aspect or any possible implementation of the second aspect to be implemented.

[0038] In a sixth aspect, a device is provided, comprising a processor, wherein the processor is used to process data and / or information 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] In one design, the device may be a communication node, or a device, module, circuit, chip, etc. configured and arranged in a communication node, or a device that can be used in conjunction with a communication node.

[0040] Optionally, the device may also include a memory for storing programs or instructions, and the processor is 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.

[0041] Optionally, the device may further include the transceiver circuit, or an input / output interface.

[0042] 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.

[0043] 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.

[0044] 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, enable the method in the first aspect or any possible implementation of the first aspect to be implemented, or enable the method in the second aspect or any possible implementation of the second aspect to be implemented.

[0045] In the ninth aspect, a computer program product is provided, which includes computer program code or instructions. When the computer program code or instructions are executed, 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.

[0046] 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

[0047] FIG1 is a schematic diagram of a communication system applicable to an embodiment of the present application;

[0048] FIG2 is a schematic diagram of a communication system applicable to an embodiment of the present application;

[0049] FIG3 is an exemplary flow chart of a communication method according to an embodiment of the present application;

[0050] FIG4 is an exemplary diagram of a resource pattern according to an embodiment of the present application;

[0051] FIG5 is an exemplary diagram of a resource pattern according to another embodiment of the present application;

[0052] FIG6 is an exemplary flow chart of a communication method according to another embodiment of the present application;

[0053] FIG7 is an exemplary flow chart of a communication method according to another embodiment of the present application;

[0054] FIG8 is an exemplary structural diagram of a communication device of the present application;

[0055] FIG9 is another exemplary structural diagram of the communication device of the present application. DETAILED DESCRIPTION

[0056] 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.

[0057] To facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0058] It should be noted that in the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0059] In the embodiments of the present application, "at least one" refers to one or more, and "more" 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: the existence of A alone, the existence of A and B at the same time, and the existence of B 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 items" or similar expressions refers to any combination of these items, including any combination of single items 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.

[0060] The technical solutions provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, open radio access networks (ORAN), wireless local area networks (WLAN) systems, satellite communication systems, future communication systems such as sixth generation (6G) mobile communication systems, or a fusion system of multiple systems. The technical solutions provided in this 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 systems or other communication systems.

[0061] FIG1 is a schematic diagram of a communication system applicable to the communication method of an embodiment of the present application. As shown in FIG1 , the communication system 100 may include a network device 110 and a terminal device 130 , as well as communication nodes 121 to 127 .

[0062] It can be understood that the number of network devices, communication nodes and terminal devices and the communication link method in the communication system shown in Figure 1 are only 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, it may include more network devices, or more or fewer communication nodes, or more terminal devices, and the communication links between communication nodes may be connected in other ways.

[0063] In the technical solution provided in this 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.

[0064] The terminal device may be a device that provides voice / data, such as a handheld device or 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 (MIDs), 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 capabilities, 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 (PLMNs). The terminal equipment in the network (PLMN), etc., is not limited to this in the embodiments of the present application.

[0065] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called 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 achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those 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 smart bracelets and smart jewelry for vital sign monitoring.

[0066] The network device in the embodiments of the present application may be referred to as an access network device or a radio access network device, for example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or replace the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station, secondary station, multi-standard radio (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. A base station may 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 that is 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, a device that performs the base station function in future communication systems, etc. 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 devices mentioned in the embodiments of the present application may include a CU, a DU, or both a CU and a DU, or a control plane CU node (central unit-control plane (CU-CP)), a user plane CU node (central unit-user plane (CU-UP)), and a DU node. For example, the network devices may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0067] In some deployments, the RAN node may be a CU, DU, CU-CP, CU-UP, or RU. The CU and DU may be separate or included in the same network element, such as a BBU. The RU may be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.

[0068] The RAN node may support one or more types of fronthaul interfaces, with different fronthaul interfaces corresponding 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 type of interface, relative to the CPRI, some of the downlink and / or uplink baseband functions, such as precoding, digital beamforming (BF), or one or more of inverse fast Fourier transform (IFFT) / cyclic prefix (CP) for downlink, 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) removal, are moved from the DU to the RU for implementation. In one possible implementation, the interface may be an enhanced common public radio interface (eCPRI). In the eCPRI architecture, the division between the DU and RU is different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, and F.

[0069] 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 preceding it (i.e., one or more of coding, rate matching, scrambling, modulation, and layer mapping). Other functions after layer mapping (e.g., RE mapping, digital beamforming (BF), or one or more of inverse fast Fourier transform (IFFT) / cyclic prefix (CP) addition) are moved to the RU for implementation. For uplink transmission, based on RE demapping, the DU is configured to implement demapping and one or more functions preceding it (i.e., one or more of decoding, rate matching, descrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and RE demapping). Other functions after demapping (e.g., one or more of digital BF or fast Fourier transform (FFT) / CP removal) are moved to the RU for implementation. It is understandable that for the functional description of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol, which will not be described in detail here.

[0070] In one possible design, the processing unit for implementing baseband functions in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing baseband functions in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0071] 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 of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0072] In the technical solution provided in this application, a communication node may include an access portion and a terminal portion. The terminal portion is used to execute standard terminal processes and / or implement standard terminal behaviors, and the access portion 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 portion may also be referred to as a base station portion, access unit, base station function, or distributed unit, and the terminal portion may also be referred to as a terminal function.

[0073] 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.

[0074] 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.

[0075] The communication node in the embodiment of the present application can be called a wireless relay node (RN), abbreviated as a relay node, or can be called a relay device.

[0076] For 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 nodes can control the relay nodes through various signaling methods, such as data scheduling, timing modulation, or power control. Furthermore, the relay node can provide services to multiple lower-level nodes.

[0077] The upper node of a relay node can be a base station or another relay node. The lower node of a relay node can be a terminal device or another relay node. Optionally, the upper node can also be called an upstream node, parent node, or previous hop node, and the lower node can also be called a downstream node, child node, or next hop node.

[0078] As an example, the communication node in the embodiment of the present application may be an integrated access and backhaul (IAB) node.

[0079] 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).

[0080] An IAB node integrates a mobile termination (MT) and a distributed unit (DU). When facing its parent node, the IAB node can be considered a terminal, acting as the MT. When facing its child nodes, the IAB node can be considered a network device, which can be a terminal or the terminal portion of another IAB node. An IAB node can establish a backhaul connection with at least one of its parent nodes via the MT portion. The DU portion of an IAB node can provide access services to terminals or the MT portions of other IAB nodes.

[0081] 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 airplanes, balloons and satellites in the air. In the embodiments of the present application, there is no limitation on the scenarios in which the network devices, terminal devices and communication nodes are located. 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 the terminal devices, network devices and communication nodes.

[0082] 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.

[0083] Figure 2 is a communication diagram of an IAB network according to an embodiment of the present application. As shown in Figure 2 , a terminal is connected to a host node via IAB node 2 and IAB node 1 .

[0084] Both IAB Node 1 and IAB Node 2 include a DU and a MT. The DU of IAB Node 2 provides access services to terminals. The DU of IAB Node 1 provides access services to the MT of IAB Node 2. The Donor-DU provides access services to the MT of IAB Node 1.

[0085] IAB Node 1 and IAB Node 2 can be connected to the core network via a wired link via a donor node. For example, in a 5G standalone (SA) network, IAB Node 1 and IAB Node 2 can be connected to the 5G core (5G core, 5GC) via a wired link via a donor node. In a 5G non-SA network, IAB Node 1 and IAB Node 2 are connected to the evolved packet core (EPC) via an evolved NodeB (eNB) on the control plane and to the EPC via a donor node and eNB on the user plane.

[0086] 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).

[0087] The backhaul link and the access link can perform resource multiplexing, for example, in a time division manner.

[0088] The IAB network scenario shown in Figure 2 is merely illustrative. In multi-hop and multi-connection IAB network scenarios, there are many other possible IAB networking methods. For example, a host node and an IAB node under another host node can form a dual connection to provide terminal services, and other possibilities are not listed here.

[0089] The host node can 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.

[0090] The F1 connection is not a physical direct connection, but rather a logical one. In practice, the F1 connection between the host node's DU and each IAB node's CU is physically implemented via the NR Uu interface between the MT of each intermediate IAB node and the DU of each IAB node. However, because the host node's DU can ultimately communicate with the IAB node's CU, it can be considered that a logical F1 interface exists between the host node's DU and the IAB node's CU.

[0091] One way the host node configures resources (e.g., air interface resources) for IAB Node 1 and IAB Node 2 is as follows: The host node configures the indicator resources via the FI interface between the host node and IAB Node 1. Because this resource allocation method requires hop-by-hop transmission of resource configuration information, it can lead to significant configuration latency and high configuration signaling overhead. This issue also applies to other scenarios with network structures identical or similar to Figure 2.

[0092] 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 enable the communication node to determine the available resources of its access part for control channel and / or data channel transmission through a shorter delay, save signaling overhead, and reduce communication interference between communication nodes.

[0093] Figure 3 is a flow chart of a communication method according to an embodiment of the present application. As shown in Figure 3 , the method may include S310 and S320.

[0094] S310 , communication node 1 sends first information indicating first resources, which include resources available for data channel transmission and / or control channel transmission by an access part in communication node 1 . Accordingly, communication node 2 receives the first information from communication node 1 .

[0095] As an example, communication node 1 may be any communication node in the system shown in FIG1 , and communication node 2 may be any communication node in the communication system shown in FIG1 other than communication node 1 that can receive a signal sent by communication node 1 .

[0096] It is understandable 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.

[0097] As an example, communication node 1 may be any IAB node in the system shown in FIG. 2 , and communication node 2 may be any IAB node in the communication system shown in FIG. 2 other than IAB node 1 that can receive a signal sent by IAB node 1 .

[0098] It can be understood that the first resource includes the resources available for the access part in the communication node 1 to perform data channel transmission and / or control channel transmission, and can include the following meanings: the first resource is an alternative resource for the access part in 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 can 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.

[0099] S320, the communication node 2 determines second resources according to the first information, where the second resources include resources available for data channel transmission and / or control channel transmission in the access part of the communication node 2.

[0100] 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.

[0101] In this embodiment, more communication nodes with the same or similar behaviors as communication node 1 may be included. In this way, communication node 2 can determine its own second resource based on the resources indicated by these communication nodes. Compared with configuring the second resource for 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 communication node 2 one by one, thereby reducing the delay of communication node 2 in determining the second resource.

[0102] As an example, the second resource does not include the first resource. For example, communication node 2 determines resources other than the first resource as the second resource. This implementation can prevent interference between the data channel and / or control channel transmitted by the access portion of communication node 2 using the second resource and the data channel and / or control channel transmitted by communication node 1 using the second resource, thereby improving the transmission performance of the data channel and / or control channel transmitted by the access portion of communication node 2 using the second resource and the data channel and / or control channel transmitted by communication node 1 using the second resource.

[0103] 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 portion of communication node 2 using the second resource and the data channel and / or control channel transmitted by communication node 1 using the second resource, thereby improving the transmission performance of the data channel and / or control channel transmitted by the access portion of communication node 2 using the second resource and the data channel and / or control channel transmitted by communication node 1 using the second resource.

[0104] As an example, the second resource includes all or part of the first resource. In this manner, 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 resource utilization.

[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 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.

[0106] As an example, the terminal part of the communication node 2 sends the second information to the access part of the communication node 2, including: the terminal part of the communication node 2 sends the second information to the access part of the communication node 2 through the internal interface between the terminal part and the access part in the communication node.

[0107] 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.

[0108] 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.

[0109] In this embodiment, as an example, the first information indicating the first resource may include: the first information indicating a resource pattern, where the resource pattern represents the distribution of the first resource in at least one of the following dimensions: the time domain, the frequency domain, or the spatial domain. For ease of description, the resource pattern indicated by the first information is referred to as the first resource pattern, or simply referred to as the first pattern.

[0110] As an example, the first information may include identification information of the first pattern.

[0111] As an example, the first pattern may be one of multiple resource patterns, each of which indicates the distribution of corresponding resources in at least one dimension. The at least one dimension may include one or more of a time domain dimension, a frequency domain dimension, and a spatial domain dimension. Any two resource patterns in the multiple resource patterns indicate different distributions of resources in the one or more dimensions. In this implementation, the first information may include an identifier of the first pattern in the multiple resource patterns.

[0112] Optionally, the resource indicated by any one of the multiple resource patterns may be an available resource or an unavailable resource.

[0113] 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.

[0114] Figure 4 is an exemplary distribution diagram of the three resource patterns of this application in the frequency domain dimension. As shown in Figure 4, pattern 0 indicates that the frequency domain resources within f0 to 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 to 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 to f3 are an available resource set, on which data channels or control channels can be transmitted.

[0115] As an example, the time domain resources are periodically divided into three segments, each segment is called a time domain resource set, thus obtaining three time domain resource sets. Each time domain resource set includes periodically repeated time domain resources, and these three time domain resource sets are recorded as three resource patterns.

[0116] FIG5 is an exemplary distribution diagram of the three resource patterns of the present application in the time domain dimension. As shown in FIG5, pattern 0 indicates that system frame numbers (SFNs) such as SFN 0, SFN 3, SFN 6, etc. constitute an available resource set, i.e., a system frame with a period of 3 system frames and an offset of 0 system frames constitutes an available time domain resource set, on which data channels or control channels can be transmitted; pattern 1 indicates that SFNs such as SFN 1, SFN 4, SFN 7, etc. constitute an available resource set, i.e., a system frame with a period of 3 system frames and an offset of 1 system frame constitutes an available time domain resource set, on which data channels or control channels can be transmitted; and pattern 2 indicates that SFNs such as SFN 2, SFN 5, SFN 8, etc. constitute an available resource set, i.e., a system frame with a period of 3 system frames and an offset of 2 system frames constitutes an available time domain resource set, on which data channels or control channels can be transmitted.

[0117] 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 can indicate the first resource pattern through the identification information of the first resource pattern.

[0118] 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 the protocol.

[0119] In this embodiment, as an example, the protocol may also predefine multiple resource pattern sets, each of which contains one or more resource patterns. For example, the first resource pattern set contains one resource pattern, the second resource pattern set contains two resource patterns, and the third resource pattern set contains 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 may be different. In this example, the first information may optionally 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.

[0120] 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.

[0121] 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 multiplexed system information can be used to carry the first information, or the first information can be an extended meaning of the multiplexed IE or carried in an existing information element with an updated meaning.

[0122] 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).

[0123] 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).

[0124] 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 reused in an occupied IE in the MIB.

[0125] As an example, the occupied IE may be included in an IE used to carry at least one of the following information: BCCH-BCH-MessageType, subCarrierSpacingCommon, or cellBarred. For example, the first information may be carried in an IE used to carry BCCH-BCH-MessageType, or in an IE used to carry subCarrierSpacingCommon, or in an IE used to carry cellBarred. An example of carrying the first information in the MIB is shown in Table 1.

[0126] Table 1 IE indication resource pattern in multiplexing MIB

[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 delivered via a system message.

[0135] As an example, the system message sending the common RNTI or group RNTI may also include indication information such as the DCI search space and / or DCI period, where the DCI search space is used for 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 FIG6 . The method includes S610 , S615 and S620 .

[0138] S610: Communication node 1 sends first information indicating first resources, which include resources available for data channel transmission and / or control channel transmission by an access part in communication node 1. Accordingly, communication node 2 receives the first information from communication node 1.

[0139] It is understood that, in addition to communication node 1, one or more other communication nodes may also send their own corresponding resource indication information. 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 transmit data channels and / or control channels. Correspondingly, communication node 2 may also receive resource indication information sent by other communication nodes.

[0140] This step may refer to S310 and will not be described again 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 is 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 based on 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 a 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 with the same or similar behaviors as communication node 1 may be included. In this way, communication node 2 can determine its own second resource based on the resources indicated by these communication nodes. Compared with configuring the second resource for 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 communication node 2 one by one, thereby reducing the delay of communication node 2 in determining the second resource.

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

[0150] As an example, the second resource includes all or part of the first resource. In this manner, 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 resource utilization.

[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 obtains 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 first information and the measurement result of 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 communication node 2 determines the second resource based on the first information and the measurement result of the reference signal, as an example, 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 regarded as an unavailable resource for communication node 2, and one of the predefined resources other than the first resource is selected as the second resource. For example, a resource pattern other than the first resource pattern is selected from the resource pattern set in which 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 first information and the measurement results of the reference signal, it determines a measurement result 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 these 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 one or more other communication nodes and obtains the measurement results 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 messages, and determines the second resource based on the measurement results and resource indication information.

[0161] To facilitate a better understanding of the technical solutions in the above embodiments of the present application, the technical solutions of the present application are described below using Figure 7 as an example. As shown in Figure 7 (a), 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] As shown in Figure 7(c), three predefined resource patterns are designated as Pattern 0, Pattern 1, and Pattern 2. Pattern 0 indicates that data transmission is possible on system frames with frame numbers SFN 0, SFN 3, and SFN 6. That is, Pattern 0 indicates that system frames with a period of three system frames and an offset of zero system frames are available time domain resources. Pattern 1 indicates that data transmission is possible on system frames with frame numbers SFN 1, SFN 4, SFN 7, etc. That is, Pattern 1 indicates that system frames with a period of three system frames and an offset of one system frame are available time domain resources. Pattern 2 indicates that data transmission is possible on system frames with frame numbers SFN 2, SFN 5, SFN 8, etc. That is, Pattern 2 indicates that system frames with a period of three system frames and an offset of two system frames are available time domain resources. It can be understood that in (c) of Figure 7, a system frame contains 10 subframes. If the subframe contains a "U" symbol, it means that the subframe is used to transmit uplink data. If the subframe contains a "D" symbol, 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 access portion is pattern 0, communication node 2 sends a system message indicating that the pattern of resources used by its access portion is pattern 1, and communication node 3 sends a system message indicating that the pattern of resources used by its access portion is pattern 2. Furthermore, communication node 1, communication node 2, and communication node 3 each periodically transmit a reference signal, such as an SSB.

[0165] Communication node 4 receives system messages sent by communication node 1, communication node 2, and communication node 3, respectively. Furthermore, 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 RSRP measurement results for SSB. Based on the measurement results and resource indication information obtained from the system messages sent by communication node 1, communication node 2, and communication node 3, communication node 4 can independently determine the resources available for data transmission.

[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 this application, indication includes direct indication (also known as explicit indication) and implicit indication. Direct indication of information A refers to including information A; implicit indication of information A refers to indicating information A through the correspondence between information A and information B and the direct indication of information B. 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 this application, information C is used to determine information D, which includes both information D being determined solely based on information C and information D being determined based on information C and other information. Furthermore, information C can also be used to determine information D indirectly, for example, where information D is determined based on information E, and information E is determined based on information C.

[0169] In addition, in each embodiment of the present application, "device A sends information A to device B" 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 undergo necessary processing between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be elaborated here.

[0170] This application also provides a communication device that can be installed in a communication node or used in conjunction with a communication node to enable the communication node to implement the functions implemented by communication node 1 and / or communication node 2 in any of the aforementioned embodiments. For example, the device can be a chip system. A chip system can be composed of a chip or include a chip and other discrete components. In another example, the device can be a computer program product.

[0171] FIG8 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. As shown in FIG8 , the device 800 may include a processing module 801 and a communication module 802 .

[0172] As a first example, apparatus 800 may be used to implement the communication method implemented by communication node 1 in the embodiment shown in FIG3 . For example, processing module 801 is used to implement the processing-related steps such as determination and judgment performed by communication node 1 in S310 , and communication module 802 is used to implement the sending and / or receiving steps performed by communication node 1 in S310 .

[0173] As a second example, apparatus 800 may be used to implement the communication method implemented by communication node 2 in the embodiment shown in FIG3 . For example, processing module 801 is used to implement the processing-related steps such as determination and judgment performed by communication node 2 in S320 , and communication module 802 is used to implement the sending and / or receiving steps performed by communication node 2 in S310 .

[0174] As a third example, apparatus 800 may be used to implement the communication method implemented by communication node 1 in the embodiment shown in FIG6 . For example, processing module 801 is used to implement the processing-related steps such as determination and judgment performed by communication node 1 in S610 and S615, and communication module 802 is used to implement the sending and / or receiving steps performed by communication node 1 in S610 and S615.

[0175] As a fourth example, apparatus 800 can be used to implement the communication method implemented by communication node 2 in the embodiment shown in FIG6 . For example, processing module 801 is used to implement the processing-related steps such as determination and judgment performed by communication node 2 in S620, and communication module 802 is used to implement the sending and / or receiving steps performed by communication node 2 in S610 and S615. As a third example, apparatus 800 can be used to implement the communication method implemented by communication node 1 in the embodiment shown in FIG6 . For example, processing module 801 is used to implement the processing-related steps such as determination and judgment performed by communication node 1 in S610 and S615, and communication module 802 is used to implement the sending and / or receiving steps performed by communication node 1 in S610 and S615.

[0176] As a fifth example, the apparatus 800 may be used to implement the communication method implemented by the communication node 1, communication node 2, or communication node 3 in the embodiment shown in FIG7 . 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, communication node 2, or communication node 3 in the embodiment shown in FIG7 , and the communication module 802 is used to implement the steps of sending and / or receiving, etc., performed by the communication node 1, communication node 2, or communication node 3 in the embodiment shown in FIG7 .

[0177] As a sixth example, the apparatus 800 may be used to implement the communication method implemented by the communication node 4 in the embodiment shown in FIG7 . 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 4 in the embodiment shown in FIG7 , and the communication module 802 is used to implement the steps of sending and / or receiving, etc., performed by the communication node 4 in the embodiment shown in FIG7 .

[0178] Figure 9 is a schematic diagram of the structure of a communication device provided in another embodiment of the present application. As shown in Figure 9, 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 can 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 above-mentioned processing module 801, and the communication circuit 902 is used to implement the functions of the above-mentioned communication module 802.

[0180] The apparatus 900 may be a communication node or a chip used in a communication node. It is understood 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: a central processing unit (CPU), and can also be 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 write information to the storage medium. Of course, the storage medium can also be an integral part 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, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented 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 instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed 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 instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. 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 that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive.

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

[0187] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent 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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