Communication method, apparatus, chip and module device

Abstract

The present application relates to the field of communications. Disclosed are a communication method, an apparatus, a chip and a module device. In the method, a terminal device may send, on a first random access resource having an SBFD characteristic, to a network device a preamble for requesting access to the network device, such that the network device can learn that the terminal device supports an SBFD communication mode, and thus the network device can use the SBFD communication mode to establish a connection relationship with the terminal device in a procedure after the receiving of the preamble. When the SBFD communication mode is used, a slot can be used for uplink sending and can also be used for downlink sending, such that the terminal device can quickly access a base station, thereby reducing an access delay.

Description

Communication method, device, chip and module equipment

[0001] This application claims priority to the Chinese patent application with application number 202310964528X filed with the State Intellectual Property Office of China on August 2, 2023, and priority to the Chinese patent application with the invention name "A communication method, device, chip and module equipment", all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a communication method, apparatus, chip, and module equipment. Background Art

[0003] Currently, terminal devices can use two-step random access or four-step random access to establish a connection relationship with the base station. For example, in two-step random access, the terminal device can send message A (MsgA) to the base station on the configured random access resources to request access to the base station. After the base station receives MsgA, it can send message B (MsgB) to the terminal device to indicate that the terminal device has successfully accessed. However, in the process after the terminal device sends MsgA, the base station and the terminal device both use time division duplex (TDD) communication. When using the TDD communication method, one time slot can be used for uplink transmission or downlink transmission. This may cause the terminal device to be unable to quickly access the base station, increasing the access delay.

[0004] Summary of the Invention

[0005] The present application provides a communication method, apparatus, chip and module device, which enable terminal devices to quickly access network devices, thereby reducing access delay.

[0006] In a first aspect, a communication method is provided, comprising: receiving configuration information from a network device, the configuration information being used to determine a first random access resource, the first random access resource having a first characteristic, the first characteristic including a subband full duplex (SBFD) characteristic; and sending a preamble code to the network device on the first random access resource, the preamble code being used to request access to the network device.

[0007] It can be seen that in the above embodiment, the terminal device can send a preamble code requesting access to the network device to the network device on the first random access resource with the SBFD characteristic, so that before the terminal device enters the connected state, the network device can know that the terminal device supports the communication mode of SBFD (the communication mode of the terminal device supporting SBFD can also be described as that the terminal device supports SBFD configuration, and the SBFD configuration is used to determine the time-frequency resources for uplink and / or downlink transmission), so that the network device can use the SBFD communication mode to establish a connection relationship with the terminal device in the process after receiving the preamble code. When the SBFD communication mode is adopted, a time slot can be used for both uplink and downlink transmission, so that the terminal device can quickly access the base station, thereby reducing the access delay. In addition, this also means that the PUSCH in Msg3 or Msg A can be transmitted using resources within the uplink subband, which can reduce the delay of uplink transmission and increase coverage.

[0008] Optionally, in combination with the first aspect, the configuration information is used to determine the first random access resource, including: the configuration information is used to configure one or more random access resource sets, the one or more random access resource sets include the first random access resource set, and the first random access resource belongs to the first random access resource set.

[0009] Optionally, in combination with the first aspect, the first random access resource set is configured with a first characteristic.

[0010] Optionally, in combination with the first aspect, the first random access resource is located in an SBFD area or in a non-SBFD area.

[0011] Optionally, in combination with the first aspect, the first random access resource has a first characteristic, including: the first random access resource is located in an SBFD area.

[0012] Optionally, in combination with the first aspect, the first random access resource set is further configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

[0013] Optionally, in combination with the first aspect, the multiple random access resource sets also include a second random access resource set, and the second random access resource set is not configured with the first characteristic; wherein, the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured through different parameter sets in the configuration information.

[0014] Optionally, in combination with the first aspect, the first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured through the same parameter set in the configuration information; wherein, the second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is not earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is located before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

[0015] In a second aspect, a communication method is provided, including: sending configuration information to a terminal device, the configuration information being used to determine a first random access resource, the first random access resource having a first characteristic, the first characteristic including a sub-band full-duplex (SBFD) characteristic; on the first random access resource, receiving a preamble code from the terminal device, the preamble code being used to request access to a network device.

[0016] Optionally, in combination with the second aspect, the configuration information is used to determine the first random access resource, including: the configuration information is used to configure one or more random access resource sets, the one or more random access resource sets include the first random access resource set, and the first random access resource belongs to the first random access resource set.

[0017] Optionally, in combination with the second aspect, the first random access resource set is configured with a first characteristic.

[0018] Optionally, in combination with the second aspect, the first random access resource is located in an SBFD area or in a non-SBFD area.

[0019] Optionally, in combination with the second aspect, the first random access resource has a first characteristic, including: the first random access resource is located in the SBFD area.

[0020] Optionally, in combination with the second aspect, the first random access resource set is further configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

[0021] Optionally, in combination with the second aspect, the multiple random access resource sets also include a second random access resource set, which is not configured with the first characteristic; wherein the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured through different parameter sets in the configuration information.

[0022] Optionally, in combination with the second aspect, the first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured through the same parameter set in the configuration information; wherein, the second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is not earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is located before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

[0023] According to a third aspect, a communication device is provided, comprising a unit for executing the method according to any one of the first aspect or the second aspect.

[0024] In a fourth aspect, a chip is provided, comprising a processor and a communication interface, wherein the processor is configured to cause the chip to execute the method as described in any one of the first aspect or the second aspect.

[0025] In a fifth aspect, a module device is provided, the module device including a communication module, a power module, a storage module, and a chip, wherein:

[0026] The power module is used to provide power to the module equipment;

[0027] The storage module is used to store data and instructions;

[0028] The communication module is used for internal communication within the module device and / or for communication between the module device and external devices;

[0029] The chip is used to perform the method as described in any one of the first aspect or the second aspect.

[0030] In a sixth aspect, a communication device is provided, comprising a memory and a processor, the memory being used to store a computer program, the computer program comprising program instructions, and the processor being configured to call the program instructions so that the communication device executes a method as described in any one of the first aspect or the second aspect.

[0031] In a seventh aspect, a computer-readable storage medium is provided, in which computer-readable instructions are stored. When the computer-readable instructions are executed on a computer, the computer executes the method described in any one of the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic diagram of a communication system provided in an embodiment of the present application;

[0033] Figure 2 is a schematic diagram of resources under SBDF;

[0034] FIG3 is a flow chart of a communication method provided in an embodiment of the present application;

[0035] FIG4 is a schematic diagram of a resource location provided in an embodiment of the present application;

[0036] FIG5 is a schematic diagram of a resource configuration provided by an embodiment of the present application;

[0037] FIG6 is a schematic diagram of another resource configuration provided in an embodiment of the present application;

[0038] FIG7 is a schematic diagram of another resource configuration provided in an embodiment of the present application;

[0039] FIG8 is another schematic diagram of resource locations provided in an embodiment of the present application;

[0040] FIG9 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0041] FIG10 is a schematic structural diagram of another communication device provided in an embodiment of the present application;

[0042] FIG11 is a schematic structural diagram of another communication device provided in an embodiment of the present application;

[0043] FIG12 is a schematic structural diagram of a module device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] The terms used in the following examples of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in the specification and appended claims of the present application, the singular expressions "a," "an," "said," "above," "the," and "this" are intended to include plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present application refers to and encompasses any or all possible combinations of one or more of the listed items.

[0046] It should be noted that the terms "first," "second," "third," etc. in the specification, claims, or drawings of this application are used to distinguish similar items and are not necessarily used to describe a specific order or sequence. The terms "including," "comprising," "having," and their variations all mean "including but not limited to," unless otherwise specifically emphasized.

[0047] The present application can be applied to a fifth generation (5G) system, also known as a new radio (NR) system; or to a sixth generation (6G) system, or a seventh generation (7G) system, or other future communication systems; or can also be used in a device to device (D2D) system, a machine to machine (M2M) system, a vehicle to everything (V2X), and the like.

[0048] The present application may be applied to the system architecture shown in Figure 1. The communication system 10 shown in Figure 1 may include, but is not limited to, a network device 110 and a terminal device 120. The number and configuration of the devices in Figure 1 are for illustrative purposes only and do not constitute a limitation on the embodiments of the present application. For example, in actual applications, multiple terminal devices may be included.

[0049] 1. Terminal Equipment

[0050] A terminal device can be a device with transceiver functions and can also be called a terminal, user equipment (UE), remote terminal equipment (remote UE), relay UE, access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent, or user device. It should be noted that a relay device is a terminal device that can provide relay forwarding services for other terminal devices (including remote terminal devices).

[0051] For example, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0052] For another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR communication system, a 6G communication system), or a terminal device in a future evolved public land mobile communication network (PLMN), etc., without specific limitation.

[0053] In some possible implementations, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); can be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0054] In some possible implementations, the terminal device may include a device with wireless communication functionality, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip and may also include other discrete devices.

[0055] In some possible implementations, the terminal device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0056] 2. Network Equipment

[0057] A network device may be a device with transceiver functions that can communicate with terminal devices.

[0058] In some possible implementations, the network device may be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side.

[0059] In some possible implementations, the network device may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) for providing wireless communication functions, that is, the network device may include a device in the RAN.

[0060] For example, the devices in the RAN may include an evolved node B (eNB or eNodeB) in an LTE communication system, a next generation evolved node B (ng-eNB) in an NR communication system, a next generation node B (gNB) in an NR communication system, a master node (MN) in a dual-connection architecture, a second node or secondary node (SN) in a dual-connection architecture, etc., without specific limitation.

[0061] In some possible implementations, the network device may include a device in a core network (CN).

[0062] For example, the equipment in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0063] In some possible implementations, the network device may also be an access point (AP) in a wireless local area network (WLAN), a relay station, a communication device in a future evolved PLMN network, a communication device in a non-terrestrial network (NTN) device network, etc.

[0064] In some possible implementations, the network device may include a device that provides wireless communication functionality for the terminal device, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip, or may include other discrete devices.

[0065] In some possible implementations, the network device may communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.

[0066] In some possible implementations, the network device may include an independent node to implement the functions of the above-mentioned base station, or may include two or more independent nodes to implement the functions of the above-mentioned base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as a gNB-CU and a gNB-DU. Furthermore, in other embodiments of the present application, the network device may also include an active antenna unit (AAU). The CU implements part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU can implement some physical layer processing functions, RF processing, and related functions of the active antenna. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this network deployment, high-layer signaling (such as RRC signaling) can be considered to be generated by the CU and sent by the DU, or sent jointly by the DU and AAU. It is understood that network devices may include at least one of the CU, DU, and AAU. Furthermore, the CU may be classified as a RAN device, or as a core network device, without specific limitation.

[0067] In some possible implementations, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site coherent cooperative transmission can be joint coherent transmission of multiple sites, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent cooperative transmission can be remote radio heads (RRHs), transmission and reception points (TRPs), network devices, etc., and there is no specific limitation on this.

[0068] In some possible implementations, the network device may be any one of the multiple sites that perform incoherent collaborative transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site incoherent collaborative transmission can be a joint incoherent transmission of multiple sites, or different data belonging to the same PDSCH is sent from different sites to the terminal device, or different data belonging to the same PDSCH is sent from different sites to the terminal device. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site incoherent collaborative transmission can be RRHs, TRPs, network devices, etc., and there is no specific limitation on this.

[0069] In some possible implementations, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the network device may be a base station located on land, water, or the like.

[0070] In some possible implementations, a network device may provide services for a cell, and a terminal device in the cell may communicate with the network device using transmission resources (e.g., spectrum resources). The cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, or a femto cell.

[0071] In some possible implementations, the network device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0072] To facilitate understanding of the embodiments of the present application, the relevant names or terms involved in the present application are explained below.

[0073] 1. Random access (RA)

[0074] The random access process is the process from when a terminal device sends a preamble to attempt to access the network to when a basic signaling connection is established with the network. Through random access, a terminal device can transition from an idle or inactive state to a connected state, establish various bearers with network devices, obtain necessary resources and configuration parameters, and then communicate with the network devices.

[0075] In a possible implementation, the terminal device may establish a connection relationship with the network device using four-step random access, specifically:

[0076] 1. The terminal device sends message 1 (Msg1) to the network device. Msg1 is used to request access to the network device.

[0077] Correspondingly, the network device receives Msg1 from the terminal device.

[0078] Msg1 may include a random access preamble, which may be referred to as a preamble. Optionally, the terminal device sends Msg1 to the network device, which may also be described as the terminal device sending a preamble to the network device. The preamble may be used to request access to the network device.

[0079] Optionally, after the network device obtains the preamble code, it can also estimate the transmission delay between it and the terminal device based on the preamble code, so that the network device can calibrate the uplink timing (TA).

[0080] 2. The network device sends Msg2 to the terminal device.

[0081] Correspondingly, the terminal device receives Msg2 from the network device.

[0082] Optionally, message 2 may be called a random access response (RAR).

[0083] Msg2 may include at least one of the following: identification information of the preamble, timing offset (TA), uplink grant (UL grant), temporary cell radio network temporary identifier (TC-RNTI), power control, etc. Msg2 may also include other information, which is not limited here.

[0084] Optionally, the identification information of the preamble code may be, for example, the number of the preamble code or the index of the preamble code.

[0085] It should be noted that when the preamble code indicated by the identification information of the preamble code in Msg2 is the same as the preamble code sent by the terminal device to the network device, the terminal device believes that the above-mentioned Msg1 has been successfully received by the network device, and the Msg2 is a random access response to the Msg1. When the preamble code indicated by the identification information of the preamble code in Msg2 is different from the preamble code sent by the terminal device to the network device, the terminal device believes that the above-mentioned Msg1 has not been successfully received by the network device, and the terminal device can re-trigger the random access process.

[0086] 3. The terminal device sends Msg3 to the network device.

[0087] Correspondingly, the network device receives Msg3 from the terminal device.

[0088] Among them, Msg3 may include identification information of the terminal device, such as system architecture evolution temporary mobile subscriber identity (S-TMSI), globally unique temporary identity (GUTI), resume ID, access network temporary identifier (RNTI) or random number, etc., without limitation here. The RNTI here can be a cell access network temporary identifier (C-RNTI) or an inactive RNTI (I-RNTI), etc.

[0089] 4. The network device sends Msg4 to the terminal device.

[0090] Correspondingly, the terminal device receives Msg4 from the network device.

[0091] Msg4 may include a contention resolution identity (CR ID). The CR ID is determined based on the terminal device's identification information in Msg3. For example, the CR ID is part or all of the terminal device's identification information. After receiving Msg4, the terminal device compares the CR ID with the terminal device's identification information in Msg3. If the two match, the conflict is resolved successfully, indicating that the terminal device has successfully accessed the network device. If the terminal device does not receive Msg4 or the CR ID does not match the terminal device's identification information in Msg3, the terminal device may re-initiate random access.

[0092] In another possible implementation, the terminal device may establish a connection relationship with the network device using two-step random access, specifically:

[0093] 1. The terminal device sends message A (MsgA) to the network device. MsgA is used to request access to the network device.

[0094] Correspondingly, the network device receives MsgA from the terminal device.

[0095] The MsgA includes a preamble. Optionally, the terminal device sending the MsgA to the network device can also be described as the terminal device sending a preamble to the network device. The preamble can be used to request access to the network device. The preamble can be carried in a physical random access channel (PRACH).

[0096] Optionally, MsgA may also include data, which may be carried in a physical uplink shared channel (PRACH).

[0097] Optionally, MsgA may also include identification information of the terminal device.

[0098] 2. The network device sends MsgB to the terminal device.

[0099] Correspondingly, the terminal device receives MsgB from the network device.

[0100] Wherein, msgB may include one or more RARs, and RARs include success responses (successRAR) or fallback responses (fallbackRAR). Optionally, msgB may carry indication information, indicating that the RAR in msgB is successRAR or fallbackRAR.

[0101] The successRAR field includes the CR ID. Optionally, the successRAR field indicates that the network device detected the preamble and successfully decoded the data in MsgA. If the conflict is resolved successfully, the terminal device terminates the random access process. Otherwise, the terminal device may re-initiate random access.

[0102] The fallbackRAR message indicates that the network device detected the preamble but failed to decode the data in MsgA, and that the terminal device failed to win the two-step random access. After receiving the fallbackRAR message, the terminal device can fall back to the four-step random access mechanism, for example, by sending Msg3 to the network device.

[0103] SBFD

[0104] In the SBFD communication mode, the frequency domain resources of a component carrier (CC) (also referred to as a carrier) can be divided into multiple sub-bands. The transmission directions of different sub-bands can be the same or different, so that simultaneous transmission and reception can be achieved on the same time domain resources, thereby increasing uplink transmission resources, reducing uplink latency, and enhancing uplink coverage. For example, as shown in Figure 2, the symbols in time slot (slot) n are all downlink (D) symbols. The uplink sub-band is not included in slot n, and the terminal device is not allowed to perform uplink transmission. The D symbols in slot n+1 and slot n+2 are configured as uplink (U) symbols in the uplink sub-band, allowing the terminal device to perform uplink transmission on the uplink sub-band. Positions other than the uplink sub-band can be used for downlink transmission by network devices. The D symbols and flexible symbols (i.e., X symbols) in slot n+3 are configured as U symbols in the uplink subband, allowing terminal devices to perform uplink transmissions on the uplink subband. Symbols outside the uplink subband can be used by network devices for downlink transmissions. All symbols in slot n+4 are U symbols, allowing terminal devices to perform uplink transmissions on the frequency domain resources of slot n+4. It should be noted that X symbols can be used for either uplink or downlink transmissions, or as a switching time between downlink and uplink.

[0105] 3. Random Access Resource Collection

[0106] A random access resource set may include one or more random access resources.

[0107] Among them, the random access resources mentioned in this application may include at least one of the following: the period of random access, the time-frequency domain position of the random access opportunity (RACH occasion, RO) within the period, the information of the preamble code associated with each RO in at least one RO (for example, the number of preamble codes and / or the index of the preamble code), and the mapping relationship with the SSB, etc.

[0108] 4. Features

[0109] Characteristics can also be called topics or features.

[0110] The characteristics in this application refer to the characteristics of random access resources. In this way, after the terminal device sends Msg1 or MsgA to the network device on the random access resource, the network device can learn the corresponding characteristics, thereby providing a reference for subsequent transmission.

[0111] In the present application, a feature may include one of the following: SBFD feature, small data transmission (SDT), coverage enhancement (CovEnh), slice, and reduced capability (Redcap).

[0112] The SBFD feature means that the terminal device can identify the SBFD configuration and determine the time and frequency resources for uplink and / or downlink transmission based on the SBFD configuration.

[0113] SDT refers to the small data transmission process. For example, during random access, the terminal device can carry uplink data in Msg3 or MsgA. The amount of uplink data is less than a certain threshold and can be called small data.

[0114] CovEnh can indicate to network devices the need for enhanced coverage, for example, by repeatedly sending Msg3 to enhance uplink coverage of random access.

[0115] Slice can indicate to network devices the need for slice prioritization and isolation (including random access isolation). It can be understood that different slices correspond to different services and different transmission requirements. Network devices can provide targeted services by allocating random access resources.

[0116] Redcap, also known as reduced capability, indicates reduced capabilities to network devices so they can adapt to subsequent transmissions. Specifically, compared to standard end devices, reduced capability devices support less bandwidth, lower processing power, and fewer features. Therefore, network devices must adjust subsequent transmissions compared to standard end devices.

[0117] It should be noted that the one or more features described above can be referred to as a feature combination or a topic combination. A feature combination includes one or more features, or a feature combination is composed of one or more features. For example, a feature combination including Feature A and Feature B indicates that the feature combination has both the characteristics of Feature A and Feature B. The following are some examples of feature combinations.

[0118] For example, a feature combination may include at least one of SDT, CovEnh, slice, and Redcap. For example, a feature combination includes SDT and CovEnh. For another example, a feature combination includes SDT, CovEnh, and slice.

[0119] For example, a feature combination may include at least one of the following: SBFD, SDT, CovEnh, slice, and Redcap. For example, a feature combination may include SBFD, SDT, and CovEnh. For another example, a feature combination may include SBFD, SDT, CovEnh, and slice.

[0120] The above are examples of characteristic combinations. There are other possible combinations of characteristic combinations, which are not listed here one by one.

[0121] Optionally, the features included in different feature combinations may be partially identical or completely different. For example, one feature combination may include SBFD and SDT, while another may include SDT, CovEnh, and slice. Both feature combinations include SDT. For another example, one feature combination may include SBFD and SDT, while another may include CovEnh and slice. These two feature combinations may include completely different features.

[0122] Optionally, different terminal devices may support different or the same feature combinations. Optionally, a terminal device may support one or more feature combinations.

[0123] 5. Time Unit

[0124] The time unit mentioned in this application may refer to a subframe, a slot or a time slot group. A time slot group may include multiple slots.

[0125] In NR, when the cyclic prefix (CP) is a normal cyclic prefix (NCP), each slot consists of 14 symbols; when the cyclic prefix is ​​an extended cyclic prefix (ECP), each slot consists of 12 symbols. Of course, as communication technologies evolve, the number of symbols in a slot may also be other values, and this application does not limit this.

[0126] It should be noted that the symbols involved in this application may be orthogonal frequency-division multiplexing (OFDM) symbols.

[0127] 6. Time Subunit

[0128] The time subunit mentioned in this application may refer to a symbol or a symbol group. A symbol group may include multiple symbols.

[0129] When the TDD communication mode is adopted, a time slot can be used for uplink transmission or downlink transmission. This may cause the terminal device to be unable to quickly access the base station, increasing the access delay and the uplink transmission delay. To solve this problem, please refer to Figure 3, which is a flow chart of a communication method provided by an embodiment of the present application. As shown in Figure 3, the communication method includes the following step 301. The method execution subject shown in Figure 3 can be a terminal device and a network device. Alternatively, the method execution subject shown in Figure 3 can be a chip in the terminal device and the network device. Figure 3 takes the terminal device and the network device as the execution subject of the method as an example for explanation.

[0130] 301. A network device sends configuration information to a terminal device, where the configuration information is used to determine a first random access resource. The first random access resource has a first characteristic, and the first characteristic includes an SBFD characteristic.

[0131] Correspondingly, the terminal device receives configuration information from the network device.

[0132] 302. The terminal device sends a preamble code to the network device on a first random access resource, where the preamble code is used to request access to the network device.

[0133] Correspondingly, the network device receives the preamble code from the terminal device on the first random access resource.

[0134] The specific implementation of steps 301 to 302 is described below.

[0135] Optionally, the configuration information is used to determine the first random access resource, including: the configuration information is used to configure one or more random access resource sets, the one or more random access resource sets include the first random access resource set, and the first random access resource belongs to the first random access resource set.

[0136] Optionally, the characteristics or characteristic combinations configured for different random access resource sets in the multiple random access resource sets may be the same. Alternatively, among the multiple random access resource sets, there may be random access resource sets configured with the same characteristics or the same characteristic combination, and there may also be random access resource sets configured with different characteristics.

[0137] For example, assume that multiple random access resource sets include random access resource set 1 through random access resource set 3. Random access resource sets 1 through random access resource set 3 are configured with a first feature, CovEnh, slice, and Redcap. That is, random access resource sets 1 through random access resource set 3 are configured with exactly the same features. Alternatively, random access resource sets 1 through random access resource set 3 are configured with the same feature combination, which includes the first feature, CovEnh, slice, and Redcap.

[0138] As another example, assume that multiple random access resource sets include random access resource set 1 to random access resource set 4. Random access resource set 1 is configured with a first characteristic, random access resource set 2 is configured with the first characteristic and SDT, and random access resource set 3 and random access resource set 4 are configured with CovEnh, slice, and Redcap. That is, the characteristics configured for random access resource set 1 and random access resource set 2 are partially the same, and the characteristics configured for random access resource set 3 and random access resource set 4 are exactly the same. Or, random access resource set 1 and random access resource set 2 are configured with characteristic combination 1, characteristic combination 1 includes CovEnh and slice, random access resource set 3 is configured with characteristic combination 2, characteristic combination 2 includes the first characteristic, CovEnh, and slice, and random access resource set 4 is configured with characteristic combination 3, characteristic combination 3 includes CovEnh and Redcap. That is, random access resource set 1 and random access resource set 2 are configured with the same characteristic combination, and random access resource set 3 and random access resource set 4 are configured with different characteristic combinations.

[0139] Optionally, in this application, a description of a feature combination and a feature (which may be included in the feature combination) may be equivalent. For example, a random access resource set being configured with at least one feature may also be described as the random access resource set being configured with a feature combination including at least one feature.

[0140] It should be noted that if a characteristic within a resource set (such as a first random access resource set) mentioned in this application is set to true, then the resource set is considered to be configured with the characteristic. For example, if the first characteristic within the first random access resource set is set to true in the configuration information, then the first random access resource set can be considered to be configured with the first characteristic.

[0141] When the configuration information configures multiple random access resource sets, several methods for determining the first random access resource set from the multiple random access resource sets are described below with reference to examples. Specifically:

[0142] 1. The terminal device can receive indication information from the network device, where the indication information is used to indicate feature priority information; the terminal device determines a first random access resource set from multiple random access resource sets based on the feature priority information. For example, the indication information may be a feature priority (featurePriorities) field in high-layer signaling. The high-layer signaling may be, for example, radio resource control (RRC) signaling. Optionally, the feature priority information is used to indicate a priority relationship between multiple features. For example, the priority of the first feature is greater than or equal to the priority of SDT, the priority of SDT is greater than or equal to the priority of CovEnh, the priority of CovEnh is greater than or equal to the priority of slice, and the priority of slice is greater than or equal to the priority of Redcap.

[0143] Among them, there are at least two random access resource sets configured with the first characteristic among the multiple random access resource sets. At least two random access resource sets are also configured with one or more characteristics other than the first characteristic. The following example illustrates how a terminal device determines the first random access resource set from multiple random access resource sets based on characteristic priority information. Assume that multiple random access resource sets include random access resource set 1 to random access resource set 4. Random access resource set 1 to random access resource set 3 are all configured with the first characteristic, and random access resource set 4 is configured with SDT and slice. Random access resource set 1 is also configured with SDT, random access resource set 2 is also configured with SDT and CovEnh, and random access resource set 3 is also configured with slice and Redcap. If the priority relationship indicated by the characteristic priority information is: the priority of the first characteristic is greater than or equal to the priority of SDT, the priority of SDT is greater than or equal to the priority of CovEnh, the priority of CovEnh is greater than or equal to the priority of slice, and the priority of slice is greater than or equal to the priority of Redcap. Since the first characteristic has the highest priority, the terminal device can first select random access resource sets 1 to 3 from random access resource sets 1 to 4. Next, in addition to being configured with the first characteristic, random access resource sets 1 to 2 are also configured with SDT. The priority of SDT is higher than the priority of the slice configured for random access resource set 3 and also higher than the priority of Redcap. Therefore, the terminal device can select random access resource set 1 and random access resource set 2 from random access resource set 1 to random access resource set 3. Finally, since random access resource set 2 is also configured with CovEnh, the terminal device can select random access resource set 2 from random access resource set 1 and random access resource set 2 and use random access resource set 2 as the first random access resource set.

[0144] 2. The terminal device may determine a first random access resource set from multiple random access resource sets, where the first random access resource set includes random access resources located within the SBFD area. For example, assume that the multiple random access resource sets include random access resource set 1 through random access resource set 3. Random access resource set 1 includes random access resources located within the SBFD area, while random access resource set 2 and random access resource set 3 do not include random access resources located within the SBFD area. Therefore, the terminal device may use random access resource set 1 as the first random access resource set.

[0145] It should be noted that any one of the above methods 1-2 can be used alone as an implementation method for determining the first random access resource set. Alternatively, the above methods 1-2 can be combined as an implementation method for determining the first random access resource set. For example, multiple random access resource sets include random access resource set 1 to random access resource set 3, random access resource set 1 is configured with the first characteristic, random access resource set 2 includes random access resources located in the SBFD area, and random access resource set 3 is not configured with the first characteristic. In one possible implementation, neither random access resource set 1 nor random access resource set 2 is configured with other characteristics, then the terminal device can use any one of the random access resource sets 1 and random access resource set 2 as the first random access resource set. In another implementation, random access resource set 1 is also configured with SDT, and random access resource set 2 is also configured with slice, and the priority of SDT is higher than the priority of the slice configured for random access resource set 3, so the terminal device can select random access resource set 1 as the first random access resource set from random access resource set 1 and random access resource set 2.

[0146] The first random access resource having the first characteristic may be understood as one of the following:

[0147] 1. The first random access resource set is configured with a first characteristic. That is, all random access resources in the first random access resource set have the first characteristic. Because the first random access resource belongs to the first random access resource set, the first random access resource has the first characteristic. Optionally, in this case, the first random access resource may be located in the SBFD area or in the non-SBFD area. As shown in Figure 4, the R0 located in the SBFD area includes the RO in slot n+2 and the RO of the uplink subband in slot n+3, that is, the RO selected by the dotted line in Figure 4. The R0 located in the non-SBFD area includes the RO of the non-uplink subband in slot n+3 and the RO in slot n+4, that is, the RO selected by the short line in Figure 4. That is, the SBFD area refers to the uplink subband of the downlink symbol, and the non-SBFD area refers to the area other than the SBFD area.

[0148] In a case where the first random access resource set is configured with the first characteristic, the first random access resource may be any random access resource in the first random access resource set.

[0149] 2. The first random access resource is located within the SBFD area. That is, the first random access resource is a random access resource in the first random access resource set that is located within the SBFD area. In other words, because the first random access resource is located within the SBFD area, it can also be indicated that the first random access resource has the first characteristic. Optionally, the first random access resource set may or may not be configured with the first characteristic.

[0150] Optionally, the first random access resource set may also be configured with at least one of the following characteristics: SDT, CovEnh, slice, and Redcap. It can also be described as follows: the first random access resource set may also be configured with at least one characteristic combination. Exemplarily, a characteristic combination includes at least one of the following: SDT, CovEnh, slice, and Redcap. As another example, different characteristic combinations in multiple characteristic combinations may include completely different characteristics. For example, assume that multiple characteristic combinations can be characteristic combination 1 and characteristic combination 2, characteristic combination 1 includes SDT and CovEnh, and characteristic combination 2 includes slice and Redcap. That is, the characteristics included in characteristic combination 1 and characteristic combination 2 are completely different.

[0151] Optionally, when the first random access resource set is configured with the first characteristic, the first characteristic may also be included in at least one characteristic combination. That is, the first random access resource set may be configured with at least one characteristic combination. Exemplarily, a characteristic combination includes the first characteristic, and the characteristic combination also includes at least one of the following: SDT, CovEnh, slice, and Redcap. Another exemplary embodiment, among the multiple characteristic combinations, there is a characteristic combination including the first characteristic, and there is also at least one characteristic combination including at least one of SDT, CovEnh, slice, and Redcap. For example, assuming that the multiple characteristic combinations can be characteristic combination 1 to characteristic combination 3, characteristic combination 1 includes the first characteristic and SDT, characteristic combination 2 includes CovEnh, and characteristic combination 3 includes slice and Redcap.

[0152] Optionally, one or more random access resource sets other than the first random access resource set among the multiple random access resource sets configured by the configuration information may all be configured with the first characteristic, or, among the one or more random access resource sets, some may be configured with the first characteristic, while others may not be configured with the first characteristic. Optionally, the one or more random access resource sets may also be configured with at least one of the following characteristics: SDT, CovEnh, slice, or Redcap.

[0153] Wherein, when the first random access resource set is configured with the first characteristic, the multiple random access resource sets further include a second random access resource set, and the second random access resource set is not configured with the first characteristic. Optionally, the random access resources in the first random access resource set and the random access resources in the second random access resource set can be configured using different parameter sets in the configuration information.

[0154] For example, in conjunction with Figure 5, the configuration information includes the parameters included in BWP-UplinkCommon. The first random access resource set can be configured by at least one parameter included in additionalRACH-Config-r19, that is, the at least one parameter included in additionalRACH-Config-r19 constitutes a parameter set (hereinafter referred to as parameter set 1). The second random access resource set can be configured by at least one parameter included in additionalRACH-Config-r17, that is, the at least one parameter included in additionalRACH-Config-r17 constitutes a parameter set (hereinafter referred to as parameter set 2). It can be seen that parameter set 1 and parameter set 2 are different. Optionally, parameter set 1 and parameter set 2 may also include parameters included in at least one of rach-ConfigCommon and msgA-ConfigCommon-r16. Specifically, when the terminal device adopts two-step random access, parameter set 1 may include parameters included in at least one of msgA-ConfigCommon-r19 and msgA-ConfigCommon-r16, and parameter set 2 may include parameters included in at least one of msgA-ConfigCommon-r17 and msgA-ConfigCommon-r16. When the terminal device adopts four-step random access, parameter set 1 may include parameters included in at least one of rach-ConfigCommon-r19 and rach-ConfigCommon, and parameter set 2 may include parameters included in at least one of rach-ConfigCommon-r17 and rach-ConfigCommon.

[0155] As another example, when the first random access resource set also includes random access resources located in the SBFD area, reference may be made to Figure 6 . The difference between Figure 6 and Figure 5 is that rach-ConfigCommon also includes rach-ConfigGeneric-SBFD, which is used to configure random access resources located in the SBFD area (such as the first random access resource); and msgA-ConfigCommon-r16 also includes RACH-ConfigCommonTwoStepRA-SBFD, which is used to configure random access resources located in the SBFD area (such as the first random access resource).

[0156] The following uses ROs as an example of random access resources to illustrate the separate configuration of random access resources in the first random access resource set and the second random access resource set. For example, the ROs selected by the dotted line in Figure 4 and the ROs selected by the short line in Figure 4 can be configured using different parameter sets in the configuration information. That is, the ROs selected by the dotted line in Figure 4 and the ROs selected by the short line in Figure 4 are configured separately.

[0157] Wherein, when the first random access resource set is not configured with the first characteristic, the first random access resource set further includes a second random access resource. Optionally, the first random access resource and the second random access resource are configured using the same parameter set in the configuration information.

[0158] Exemplarily, in conjunction with Figure 7, the configuration information includes the parameters included in BWP-UplinkCommon. The first random access resource and the second random access resource are configured by at least one parameter included in additionalRACH-Config-r17, that is, at least one parameter included in additionalRACH-Config-r17 constitutes a parameter set (hereinafter referred to as parameter set 3). Specifically, when the terminal device adopts two-step random access, parameter set 3 may include parameters included in at least one of msgA-ConfigCommon-r17 and msgA-ConfigCommon-r16. Among them, RACH-ConfigCommonTwoStepRA-SBFD and msgA-PUSCH-Config-SBFD in msgA-ConfigCommon-r17, or RACH-ConfigCommonTwoStepRA-SBFD in msgA-ConfigCommon-r16 are used to configure random access resources (such as the first random access resource) located in the SBFD area. When the terminal device adopts four-step random access, parameter set 3 may include parameters included in at least one of rach-ConfigCommon-r17 and rach-ConfigCommon, etc. Among them, rach-ConfigGeneric-SBFD in rach-ConfigCommon-r17 or rach-ConfigGeneric-SBFD in rach-ConfigCommon is used to configure random access resources (such as the first random access resource) located in the SBFD area.

[0159] Optionally, the second random access resource may be located within an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource may not be earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is located before the time unit where the second random access resource is located, where N is an integer greater than or equal to 0. For example, taking the random access resource as an RO, the second random access resource may be the RO in slot n+3 in Figure 8. The RO is located within the uplink symbol, and the starting symbol of the RO is the last downlink symbol of slot n+2, and slot n+2 is before slot n+3. In addition, the RO selected by the dotted box in Figure 8 and the RO selected by the short box in Figure 8 may be configured through the same parameter set in the configuration information. Among them, the first random access resource may be an RO selected by the dotted box in Figure 8, such as the RO of the uplink subband in slot n+1. The second random access resource may be an RO selected by the short box in Figure 8, such as the RO in slot n+3.

[0160] It should be pointed out that the above Figures 5 to 7 are only examples of some solutions, which can also be combined, etc., and this solution does not limit them.

[0161] It can be seen that in the above embodiment, the terminal device can send a preamble code requesting access to the network device to the network device on the first random access resource with the SBFD characteristic, so that before the terminal device enters the connected state, the network device can know that the terminal device supports the communication mode of SBFD (the communication mode of the terminal device supporting SBFD can also be described as that the terminal device supports SBFD configuration, and the SBFD configuration is used to determine the time-frequency resources for uplink and / or downlink transmission), so that the network device can use the SBFD communication mode to establish a connection relationship with the terminal device in the process after receiving the preamble code. When the SBFD communication mode is adopted, a time slot can be used for both uplink and downlink transmission, so that the terminal device can quickly access the base station, thereby reducing the access delay. In addition, this also means that the PUSCH in Msg3 or Msg A can be transmitted using resources within the uplink subband, which can reduce the delay of uplink transmission and increase coverage.

[0162] Referring to FIG9 , FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device may be a terminal device or a device having terminal device functions (e.g., a chip). Specifically, as shown in FIG9 , the communication device 900 may include:

[0163] The receiving unit 901 is used to receive configuration information from the network device, where the configuration information is used to determine a first random access resource, where the first random access resource has a first characteristic, where the first characteristic includes an SBFD characteristic; the sending unit 902 is used to send a preamble code to the network device on the first random access resource, where the preamble code is used to request access to the network device.

[0164] Optionally, the configuration information is used to determine the first random access resource, including: the configuration information is used to configure one or more random access resource sets, the one or more random access resource sets include the first random access resource set, and the first random access resource belongs to the first random access resource set.

[0165] Optionally, the first random access resource set is configured with a first characteristic.

[0166] Optionally, the first random access resource is located in the SBFD area or in the non-SBFD area.

[0167] Optionally, the first random access resource has a first characteristic, including: the first random access resource is located in an SBFD area.

[0168] Optionally, the first random access resource set is also configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

[0169] Optionally, the multiple random access resource sets also include a second random access resource set, which is not configured with the first characteristic; wherein the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured through different parameter sets in the configuration information.

[0170] Optionally, the first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured through the same parameter set in the configuration information; wherein, the second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is not earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is located before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

[0171] Referring to FIG10 , FIG10 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device may be a network device or a device having network device functions (e.g., a chip). Specifically, as shown in FIG10 , the communication device 1000 may include:

[0172] The sending unit 1001 is used to send configuration information to the terminal device, where the configuration information is used to determine a first random access resource, where the first random access resource has a first characteristic, where the first characteristic includes a sub-band full-duplex (SBFD) characteristic; the receiving unit 1002 is used to receive a preamble code from the terminal device on the first random access resource, where the preamble code is used to request access to the network device.

[0173] Optionally, the configuration information is used to determine the first random access resource, including: the configuration information is used to configure one or more random access resource sets, the one or more random access resource sets include the first random access resource set, and the first random access resource belongs to the first random access resource set.

[0174] Optionally, the first random access resource set is configured with a first characteristic.

[0175] Optionally, the first random access resource is located in the SBFD area or in the non-SBFD area.

[0176] Optionally, the first random access resource has a first characteristic, including: the first random access resource is located in an SBFD area.

[0177] Optionally, the first random access resource set is also configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

[0178] Optionally, the multiple random access resource sets also include a second random access resource set, which is not configured with the first characteristic; wherein the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured through different parameter sets in the configuration information.

[0179] Optionally, the first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured through the same parameter set in the configuration information; wherein, the second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is not earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is located before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

[0180] The present application also provides a chip that can execute the steps related to the terminal device or network device in the aforementioned method embodiment. The chip includes a processor and a communication interface.

[0181] In one possible embodiment, the processor is configured to cause the chip to perform the following operations: receiving configuration information from a network device, the configuration information being used to determine a first random access resource, the first random access resource having a first characteristic, the first characteristic including an SBFD characteristic; and sending a preamble code to the network device on the first random access resource, the preamble code being used to request access to the network device.

[0182] In another possible embodiment, the processor is configured to cause the chip to perform the following operations: sending configuration information to the terminal device, the configuration information is used to determine a first random access resource, the first random access resource has a first characteristic, the first characteristic includes a sub-band full-duplex (SBFD) characteristic; on the first random access resource, receiving a preamble code from the terminal device, the preamble code is used to request access to the network device.

[0183] Optionally, the configuration information is used to determine the first random access resource, including: the configuration information is used to configure one or more random access resource sets, the one or more random access resource sets include the first random access resource set, and the first random access resource belongs to the first random access resource set.

[0184] Optionally, the first random access resource set is configured with a first characteristic.

[0185] Optionally, the first random access resource is located in the SBFD area or in the non-SBFD area.

[0186] Optionally, the first random access resource has a first characteristic, including: the first random access resource is located in an SBFD area.

[0187] Optionally, the first random access resource set is also configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

[0188] Optionally, the multiple random access resource sets also include a second random access resource set, which is not configured with the first characteristic; wherein the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured through different parameter sets in the configuration information.

[0189] Optionally, the first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured through the same parameter set in the configuration information; wherein, the second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is not earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is located before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

[0190] Optionally, the above-mentioned chip includes at least one processor, at least one first memory and at least one second memory; wherein, the aforementioned at least one first memory and the aforementioned at least one processor are interconnected through lines, and instructions are stored in the aforementioned first memory; the aforementioned at least one second memory and the aforementioned at least one processor are interconnected through lines, and the aforementioned second memory stores data that needs to be stored in the aforementioned method embodiment.

[0191] For each device or product applied to or integrated in the chip, each module contained therein can be implemented in the form of hardware such as circuits, or at least some of the modules can be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules can be implemented in the form of hardware such as circuits.

[0192] Referring to Figure 11, Figure 11 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device can be a terminal device or a network device. The communication device 1100 may include a memory 1101 and a processor 1102. Optionally, it also includes a communication interface 1103. The memory 1101, processor 1102, and communication interface 1103 are connected via one or more communication buses. The communication interface 1103 is controlled by the processor 1102 to send and receive information.

[0193] The memory 1101 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1102. A portion of the memory 1101 may also include a nonvolatile random access memory.

[0194] The communication interface 1103 is used to receive or send data.

[0195] The processor 1102 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor, or alternatively, the processor 1102 may be any conventional processor. Specifically:

[0196] The memory 1101 is used to store program instructions.

[0197] The processor 1102 is configured to call the program instructions stored in the memory 1101 .

[0198] The processor 1102 calls the program instructions stored in the memory 1101 to enable the communication device 1100 to execute the method executed by the terminal device or the network device in the above method embodiment.

[0199] Referring to Figure 12, which is a schematic diagram of the structure of a module device provided in an embodiment of the present application, the module device 1200 can execute the relevant steps of the terminal device or network device in the aforementioned method embodiment, and the module device 1200 includes: a communication module 1201, a power module 1202, a storage module 1203, and a chip 1204.

[0200] Among them, the power supply module 1202 is used to provide power to the module device; the storage module 1203 is used to store data and instructions; the communication module 1201 is used for internal communication within the module device, or for the module device to communicate with external devices; the chip 1204 is used to execute the method executed by the terminal device or network device in the above method embodiment.

[0201] It should be noted that for the contents not mentioned in the embodiments corresponding to Figures 11 and 12 and the specific implementation methods of each step, please refer to the embodiment shown in Figure 3 and the aforementioned contents, and will not be repeated here.

[0202] An embodiment of the present application also provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.

[0203] An embodiment of the present application further provides a computer program product, in which computer-readable instructions are stored. When the computer-readable instructions are executed on a computer, the computer executes the method flow of the above-mentioned method embodiment.

[0204] Regarding the various modules / units contained in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or partly software modules / units and partly hardware modules / units. For example, for various devices and products applied to or integrated into a chip, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on the integrated processor inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated into a chip module, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same part of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / units can be implemented in the form of software programs. It can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the modules / units contained therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0205] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain operations can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0206] The descriptions of the various embodiments provided in this application can refer to each other. The descriptions of each embodiment have their own focus. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, the functions and operations performed by the various devices and equipment provided in the embodiments of this application can refer to the relevant descriptions of the method embodiments of this application. The various method embodiments and the various device embodiments can also refer to, be combined with, or quote each other.

[0207] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, characterized in that: include: receiving configuration information from a network device, where the configuration information is used to determine a first random access resource, where the first random access resource has a first characteristic, where the first characteristic includes a sub-band full-duplex (SBFD) characteristic; A preamble is sent to the network device on the first random access resource, where the preamble is used to request access to the network device.

2. The method according to claim 1, characterized in that The configuration information is used to determine the first random access resource, including: The configuration information is used to configure one or more random access resource sets, where the one or more random access resource sets include a first random access resource set, and the first random access resource belongs to the first random access resource set.

3. The method according to claim 2, characterized in that The first random access resource set is configured with the first characteristic.

4. The method according to any one of claims 1 to 3, characterized in that: The first random access resource is located in the SBFD area or in the non-SBFD area.

5. The method according to claim 1 or 2, characterized in that: The first random access resource has a first characteristic, including: the first random access resource is located in a SBFD area.

6. The method according to any one of claims 2 to 5, characterized in that: The first random access resource set is further configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

7. The method according to any one of claims 2 to 4 or 6, characterized in that: The multiple random access resource sets also include a second random access resource set, which is not configured with the first characteristic; wherein the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured by different parameter sets in the configuration information.

8. The method according to claim 2, 5 or 6, characterized in that: The first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured by the same parameter set in the configuration information; The second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is no earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

9. A communication method, characterized in that: include: Sending configuration information to a terminal device, where the configuration information is used to determine a first random access resource, where the first random access resource has a first characteristic, where the first characteristic includes a sub-band full-duplex (SBFD) characteristic; A preamble code is received from the terminal device on the first random access resource, where the preamble code is used to request access to a network device.

10. The method according to claim 9, characterized in that The configuration information is used to determine the first random access resource, including: The configuration information is used to configure one or more random access resource sets, where the one or more random access resource sets include a first random access resource set, and the first random access resource belongs to the first random access resource set.

11. The method according to claim 10, characterized in that The first random access resource set is configured with the first characteristic.

12. The method according to any one of claims 9 to 11, characterized in that: The first random access resource is located in the SBFD area or in the non-SBFD area.

13. The method according to claim 9 or 10, characterized in that: The first random access resource has a first characteristic, including: the first random access resource is located in a SBFD area.

14. The method according to any one of claims 10 to 13, characterized in that: The first random access resource set is further configured with at least one of the following characteristics: small data transmission, enhanced coverage, slicing, and reduced capability.

15. The method according to any one of claims 10 to 12 or 14, characterized in that: The multiple random access resource sets also include a second random access resource set, which is not configured with the first characteristic; wherein the random access resources in the first random access resource set and the random access resources in the second random access resource set are configured by different parameter sets in the configuration information.

16. The method according to claim 10, 13 or 14, characterized in that The first random access resource set also includes a second random access resource, and the first random access resource and the second random access resource are configured by the same parameter set in the configuration information; The second random access resource is located in an uplink time subunit or a flexible time subunit, and the starting time subunit of the second random access resource is no earlier than the last downlink time subunit in the time unit or N time subunits after the time subunit where the synchronization signal block is located, and the time unit is before the time unit where the second random access resource is located, and N is an integer greater than or equal to 0.

17. A communication device, characterized in that: The method comprises means for performing the method according to any one of claims 1 to 16.

18. A chip, characterized in that: The method comprises a processor and a communication interface, wherein the processor is configured to cause the chip to execute the method according to any one of claims 1 to 16.

19. A module device, characterized in that: The module device includes a communication module, a power module, a storage module and a chip, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication of the module device and / or for communication between the module device and an external device; The chip is used to execute the method according to any one of claims 1 to 16.

20. A communication device, characterized in that: The device comprises a memory and a processor, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions so that the communication device executes the method according to any one of claims 1 to 16.

21. A computer-readable storage medium, characterized in that: The computer storage medium stores computer-readable instructions, and when the computer-readable instructions are executed on a computer, the computer is enabled to execute the method according to any one of claims 1 to 16.

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