Wireless communication method, terminal device, network device and computer readable storage medium

Abstract

The embodiment of the invention provides a wireless communication method, terminal equipment, network equipment and a computer readable storage medium, the terminal equipment indicates the type or capability set of the terminal equipment through two pieces of information at different stages, so that the network equipment can formulate different optimization schemes for transmission at different stages, and the spectrum efficiency is improved. The wireless communication method comprises the following steps: the terminal equipment indicates a first type of the terminal equipment through first information, and indicates a second type of the terminal equipment through second information; or, the terminal device indicates the first capability set of the terminal device through the first information, and indicates the second capability set of the terminal device through the second information; wherein the first information comprises a channel and / or a signal, and the second information comprises a channel and / or a signal.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method, a terminal device, a network device, and a computer-readable storage medium. Background Art

[0002] In some communication scenarios, Reduced Capability (RedCap) terminals are introduced for scenarios with lower performance requirements such as latency, reliability, bandwidth, coverage, and throughput. For such RedCap terminals, how to indicate their terminal type so that network devices can optimize the transmission of RedCap terminals is an urgent problem to be solved. Summary of the invention

[0003] The embodiments of the present application provide a wireless communication method, terminal device and network device. The terminal device indicates the type or capability set of the terminal device through two pieces of information at different stages, so that the network device can formulate different optimization plans for transmission at different stages to improve spectrum efficiency.

[0004] In a first aspect, a wireless communication method is provided, the method comprising:

[0005] The terminal device indicates a first type of the terminal device through first information, and indicates a second type of the terminal device through second information; or, the terminal device indicates a first capability set of the terminal device through first information, and indicates a second capability set of the terminal device through second information;

[0006] The first information includes a channel and / or a signal, and the second information includes a channel and / or a signal.

[0007] In a second aspect, a wireless communication method is provided, the method comprising:

[0008] The network device receives the first information and the second information sent by the terminal device respectively, wherein:

[0009] The first information is used to indicate a first type of the terminal device, and the second information is used to indicate a second type of the terminal device; or, the first information is used to indicate a first capability set of the terminal device, and the second information is used to indicate a second capability set of the terminal device; the first information includes channels and / or signals, and the second information includes channels and / or signals.

[0010] In a third aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.

[0011] In a fourth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect.

[0012] In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to second aspects above.

[0013] Through the above technical solution, the terminal device indicates the first type of the terminal device through the first information, and indicates the second type of the terminal device through the second information. That is, the terminal device indicates the type of the terminal device through two pieces of information at different stages, so that the network device can formulate different optimization plans for transmission at different stages to improve spectrum efficiency.

[0014] Alternatively, the terminal device indicates the first capability set of the terminal device through the first information, and indicates the second capability set of the terminal device through the second information. That is, the terminal device indicates the capability set of the terminal device through two pieces of information at different stages, so that the network device can formulate different optimization schemes for transmission at different stages to improve spectrum efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0016] Figure 2 It is a schematic flowchart of the four-step random access process provided in this application.

[0017] Figure 3 It is a schematic flowchart of the two-step random access process provided by this application.

[0018] Figure 4 It is a schematic diagram of the PO time slot and the RO time slot provided in this application.

[0019] Figure 5 It is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0020] Figures 6 to 10 They are respectively schematic flow charts of a terminal device indicating a terminal type / capability set according to an embodiment of the present application.

[0021] Fig.11 It is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0022] Fig.12 It is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0023] Fig.13 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0024] Fig.14 It is a schematic block diagram of a device provided according to an embodiment of the present application.

[0025] Fig.15 It is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0028] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0029] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0030] Optionally, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

[0031] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein 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, etc.

[0032] The terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, 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 network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0033] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

[0034] In the embodiment of the present application, 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 self 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.

[0035] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0036] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0037] As an example but not limitation, in an embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. Optionally, 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. Optionally, the network device may also be a base station set up in a location such as land or water.

[0038] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0039] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminal devices located in the coverage area.

[0040] Figure 1 One network device and two terminal devices are shown exemplarily. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0041] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0042] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0043] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0045] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0046] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0047] In the embodiments of the present application, "pre-definition" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0048] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0049] In order to better understand the embodiments of the present application, the random access process related to the present application is described.

[0050] In the 5G system, the random access process adopts a four-step random access process similar to LTE, such as Figure 2 As shown:

[0051] S11, the UE sends a physical random access channel (PRACH) to the base station, where the PRACH includes a random access preamble, i.e., message 1 (Msg 1);

[0052] S12, after detecting that a UE has sent a random access preamble, the base station sends a random access response (RAR), i.e., message 2 (Msg 2), to the UE to inform the UE of the physical uplink shared channel (PUSCH) resources that can be used when sending message 3 (Msg 3), allocate a temporary radio network temporary identifier (RNTI) to the UE, and provide a timing advance command (time advance command) to the UE;

[0053] S13, after receiving the RAR, the UE sends a Msg 3 message on the PUSCH resource specified by the RAR, which carries a UE-specific temporary identification information;

[0054] S14, the base station sends message 4 (Msg 4) to the UE, which includes a contention resolution message and allocates uplink transmission resources to the UE. When the UE receives Msg 4 sent by the base station, it detects whether the UE-specific temporary identifier sent by the UE in Msg 3 is included in the contention resolution message sent by the base station. If it is included, it indicates that the UE random access is successful, otherwise it is considered that the random process has failed, and the UE needs to initiate the random access process again from the first step.

[0055] The delay overhead of the four-step random access process is relatively large, which is not suitable for the low-latency and high-reliability scenarios in 5G. During the standardization process of NR, considering the characteristics of low-latency and high-reliability related services, a two-step random access process, namely the Type-2 random access process, was introduced in Release 16 (R16), which can reduce the access delay compared with the four-step random access process. Correspondingly, the four-step random access process is called the Type-1 random access process.

[0056] The two-step random access process is as follows Figure 3 As shown, in the two-step random access process, simply speaking, it is equivalent to merging Msg 1 and Msg 3 of the four-step random access process into S21 of the two-step random access process, the UE sends message A (messageA, Msg A), merges Msg 2 and Msg 4 of the four-step random access process into S22 of the two-step random access process, and the base station responds with message B (message B, Msg B). For S21 in the two-step random access process, Msg A includes preamble and PUSCH parts, and Msg B includes physical downlink control channel (Physical Downlink Control Channel, PDCCH) and physical downlink shared channel (Physical Downlink Shared Channel, PDSCH). For Msg A, the UE needs to send preamble and PUSCH, where the random access process opportunity (Random Access Channel Occasion, RO) where the preamble is located is the same as the four-step random access process. Through network configuration, its RO can be shared with the RO of the four-step random access process, or it can be configured separately. The time-frequency resource where PUSCH is located is called PUSCH occasion (PO). A PO can contain multiple PUSCH resource units (PRUs). A PRU contains PUSCH resources + DMRS. The demodulation reference signal (DMRS) contains DMRS ports and DMRS sequences. PO is also configured by the network. Its period is the same as RO and is related to it. Figure 4 As shown, the relative relationship between the PO and the associated RO in time-frequency position is network configured.

[0057] In order to facilitate a better understanding of the embodiments of the present application, the reduced capability (RedCap) terminal related to the present application is described.

[0058] The NR system is mainly designed to support Enhanced Mobile Broadband (eMBB) services. Its main technology is to meet the needs of high speed, high spectrum efficiency and large bandwidth. In fact, in addition to eMBB, there are many different types of services, such as sensor networks, video surveillance, wearables, etc., which have different requirements from eMBB services in terms of speed, bandwidth, power consumption, cost, etc. The capabilities of terminals supporting these services are reduced compared to terminals supporting eMBB, such as reduced supported bandwidth, relaxed processing time, reduced number of antennas, and relaxed maximum modulation order. The NR system needs to be optimized for these services and corresponding low-capability terminals, which can be referred to as RedCap terminals. In LTE technology, there are already similar system designs to support terminals with large number of connections, low power consumption and low cost, such as Machine Type Communication (MTC) and Narrow Band Internet of Things (NB-IoT). In the NR system, it is hoped that similar technologies will be introduced to use NR technology to better support other types of services besides eMBB services. For such low-complexity, low-cost terminals, one optimization that needs to be performed is coverage enhancement, which is used to improve the downlink and uplink coverage of such terminals.

[0059] In order to facilitate a better understanding of the embodiments of the present application, the identification of the RedCap terminal by the network related to the present application is explained.

[0060] For the UE that initially accesses, after receiving the system message, it initiates a random access process to establish a Radio Resource Control (RRC) connection with the network. In this process, the network needs to identify the type of UE and obtain the capability information related to the UE.

[0061] At this stage, the following methods can be used to indicate the type of UE:

[0062] Indicated during the transmission phase of Msg 1, for example, through the initial uplink bandwidth part (Band Width Part, BWP) where Msg 1 is transmitted, through independent PRACH resources, or by dividing an independent PRACH preamble set;

[0063] Indicated during the transmission phase of Msg 3, for example, in the payload of the carried Msg 3 PUSCH;

[0064] Indicated after the transmission of Msg 4, such as message 5 (Msg 5) or as a UE capability report;

[0065] For the two-step random access process, the indication is made during the sending phase of Msg A.

[0066] For RedCap terminals, the network equipment cannot know their terminal type in the initial access stage. Compared with non-RedCap terminals, the reception performance of the downlink channel of RedCap terminals decreases due to the reduction in the number of receiving antennas. During the random access process, the network sends Msg 2 and Msg 4 to the terminal through the common channel. Since the type of the terminal is unknown, a conservative approach is that the network sets the transmission mode of the downlink channel according to the number of receiving antennas of the RedCap terminal, such as the scheduling resource size, modulation and coding scheme, etc. This will cause a reduction in downlink spectrum efficiency. The current solution to this problem is that during the random access process, the RedCap terminal reports its terminal type, so that the network can adopt the corresponding downlink channel transmission mode. In general, the earlier the network identifies the access of the RedCap terminal, the earlier the transmission of the RedCap terminal can be optimized, thereby improving the transmission efficiency. For example, through the indication of Msg 1, the network can perform corresponding optimization for the RedCap terminal when sending Msg 2. However, the indication during the sending phase of Msg 1, including distinguishing RedCap terminals from non-RedCap terminals through preamble, initial uplink BWP, and PRACH resources, will segment the PRACH resource set, resulting in a decrease in the utilization of PRACH resources and a decrease in the user capacity supported by PRACH. When multiple RedCap terminal types need to be indicated, the PRACH resources are further segmented, further exacerbating the problem.

[0067] Based on the above problems, this application proposes a RedCap terminal type or capability indication scheme, in which the terminal device indicates the type or capability set of the terminal device through two pieces of information at different stages, so that the network device can formulate different optimization plans for transmission at different stages to improve spectrum efficiency.

[0068] The technical solution of the present application is described in detail below through specific embodiments.

[0069] Figure 5 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, such as Figure 5 As shown, the method 200 may include at least part of the following contents:

[0070] S210, the terminal device sends first information and second information to the network device respectively, wherein:

[0071] The first information is used to indicate a first type of the terminal device, and the second information is used to indicate a second type of the terminal device; or, the first information is used to indicate a first capability set of the terminal device, and the second information is used to indicate a second capability set of the terminal device; the first information includes a channel and / or a signal, and the second information includes a channel and / or a signal;

[0072] S220, the network device receives the first information and the second information sent by the terminal device respectively.

[0073] That is, in an embodiment of the present application, the terminal device indicates the first type of the terminal device through the first information, and indicates the second type of the terminal device through the second information; or, the terminal device indicates the first capability set of the terminal device through the first information, and indicates the second capability set of the terminal device through the second information.

[0074] The terminal device sends the first information and the second information respectively in two stages, so that the network device can formulate different optimization schemes for transmission in different stages to improve spectrum efficiency.

[0075] Optionally, in some embodiments, the first type of the terminal device is used to indicate that the terminal device is a reduced capability terminal; and the second type of the terminal device is used to indicate the type of the terminal device among reduced capability terminals.

[0076] It should be noted that the first type is a type that is different from a non-RedCap terminal, and is used by the network device to identify the terminal device that sends the first information as a RedCap terminal that is different from a traditional terminal. That is, at the stage of sending the first information, although there are multiple RedCap terminal types, the specific type is not indicated, but only the terminal device that sends the first information is identified as a RedCap terminal.

[0077] In addition, the second type is a more specific RedCap terminal type, which can be divided according to the capabilities of the RedCap terminal, such as bandwidth, processing time, number of antennas, maximum modulation order, etc.

[0078] Optionally, different types of terminals in the reduced capability terminal have different corresponding bandwidths, numbers of receiving antennas, maximum modulation orders, and processing capabilities. Of course, different types of reduced capability terminals may also have other different capabilities, which is not limited in this application.

[0079] For example, reduced capability terminal type 1 corresponds to: 2 antennas receiving; reduced capability terminal type 2 corresponds to: 1 antenna receiving.

[0080] For another example, reduced capability terminal type 1 corresponds to: 20MHz bandwidth capability, 2 antennas reception; reduced capability terminal type 2 corresponds to: 15MHz bandwidth capability, 1 antenna reception; reduced capability terminal type 3 corresponds to: 20MHz bandwidth capability, 1 antenna reception, reduced maximum modulation order, and extended processing time.

[0081] Optionally, the second type of the terminal device is pre-configured or agreed upon by protocol, or the second type of the terminal device is configured or indicated by a network device.

[0082] Optionally, in some embodiments, the first capability set of the terminal device includes at least the number of receiving antennas of the terminal device;

[0083] And the second capability set of the terminal device includes at least one of the following:

[0084] The bandwidth supported by the terminal device, the maximum modulation order supported by the terminal device, and the processing capability information of the terminal device.

[0085] Optionally, the terminal device is a reduced capability terminal.

[0086] It should be noted that the first capability set may further include other capability elements, and the second capability set may further include other capability elements, which is not limited in this application.

[0087] For example, the first capability set includes the number of receiving antennas of the terminal device, and the second capability set includes the bandwidth supported by the terminal device.

[0088] For another example, the first capability set includes the number of receiving antennas of the terminal device, and the second capability set includes the bandwidth supported by the terminal device, the maximum modulation order supported by the terminal device, and the processing capability information of the terminal device.

[0089] For another example, the first capability set includes the number of receiving antennas of the terminal device and the bandwidth supported by the terminal device, and the second capability set includes the maximum modulation order supported by the terminal device and the processing capability information of the terminal device.

[0090] For another example, the first capability set includes the number of receiving antennas of the terminal device and the processing capability information of the terminal device, and the second capability set includes the maximum modulation order supported by the terminal device and the bandwidth supported by the terminal device.

[0091] For another example, the first capability set includes the number of receiving antennas of the terminal device and the maximum modulation order supported by the terminal device, and the second capability set includes the processing capability information of the terminal device and the bandwidth supported by the terminal device.

[0092] Optionally, the first capability set of the terminal device is pre-configured or agreed upon by a protocol, or the first capability set of the terminal device is configured or indicated by a network device.

[0093] Optionally, the second capability set of the terminal device is pre-configured or agreed upon by protocol, or the second capability set of the terminal device is configured or indicated by the network device.

[0094] Optionally, as Example 1, the first information is carried in the first information (Msg1) in the four-step random access process, and the second information is carried in the third information (Msg 3) in the four-step random access process, such as Figure 6 shown.

[0095] Optionally, in Example 1, the first information is determined by at least one of the following:

[0096] PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink BWP for sending PRACH.

[0097] Optionally, in Example 1, the second information is determined by at least one of the following:

[0098] Scrambling code information of data carried by PUSCH, sequence information of PUSCH DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0099] It should be noted that in order to optimize the transmission of RedCap terminals at the beginning of Msg 2 transmission, the existing technology must divide the PRACH resources to distinguish non-RedCap terminals and various types of RedCap terminals, which will cause the utilization rate of PRACH resources to decrease and the user capacity supported by PRACH to decrease.

[0100] In order to reduce the segmentation of PRACH resources and identify the RedCap terminal as early as possible in the PRACH transmission stage, the technical solution of this example 1 can indicate the first type of RedCap terminal through the first information carried by Msg 1, and indicate the second type of RedCap terminal through the second information carried by Msg3. Among them, the first type is a type that is different from non-RedCap terminals, and is used by network equipment to identify the terminal device sending the first information as a RedCap terminal that is different from traditional terminals. That is, in the stage of sending the first information, although there are multiple types of RedCap terminals, the specific type is not indicated, but only the terminal device sending the first information is identified as a RedCap terminal. Therefore, the PRACH resources used to determine the first information only need to divide a set for use by RedCap terminals, reducing the further division of PRACH resources, wherein the PRACH resources include one or more of PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink BWP for sending PRACH.

[0101] That is, in Example 1, during the PRACH transmission phase of Msg 1, the network device can identify the RedCap terminal and can optimize the transmission of Msg 2 to a certain extent, but the network does not know the specific type of RedCap terminal. At this time, the network device can assume a set of RedCap terminal capabilities, such as different types of RedCap terminals have different numbers of receiving antennas, including 1 antenna or 2 antennas. Therefore, when the network device sends Msg 2, the transmission of PDCCH and PDSCH can be conservatively assumed that the RedCap terminal is receiving with 1 antenna to determine the transmission mode of the downlink channel, such as the scheduling resource size, modulation and coding scheme, etc. This can improve the spectrum efficiency to a certain extent, while ensuring the receiving performance of the RedCap terminal.

[0102] In Example 1, when the RedCap terminal sends Msg 3, the second type of the RedCap terminal is indicated by the second information carried in Msg 3. Among them, the second type is a more specific RedCap terminal type, or a subtype. For the definition of subtypes, they can be divided according to the capabilities of the RedCap terminal, such as bandwidth, processing time, number of antennas, maximum modulation order, etc. According to the difference in these capabilities, each of the multiple subtypes corresponds to a capability set, such as subtype 1 corresponds to: 20MHz bandwidth capability, 2 antenna reception, subtype 2 corresponds to: 20MHz bandwidth capability, 1 antenna reception, maximum modulation order reduction, and extended processing time. It can be seen that the capabilities of subtype 2 are different from those of subtype 1. After the network device learns the subtype, the transmission in Msg 4 and later can be further optimized to improve the spectrum efficiency.

[0103] In addition, the purpose of network equipment identifying RedCap terminals is mainly to optimize uplink and downlink transmission and improve spectrum efficiency. In the sending phase of Msg 1, the first capability set of the RedCap terminal can be indicated by the first information carried in Msg 1, and the first capability set can include more important capability information, such as the number of receiving antennas. The network device can optimize the transmission according to the number of receiving antennas in the sending phase of Msg 2. In the sending phase of Msg 3, the second capability set of the RedCap terminal can be further indicated by the second information carried in Msg3, and the second capability set can include further capability information, including supported broadband and processing time capability. This information can further optimize downlink transmission when the network device sends Msg4. For example, the bandwidth and processing time capability indicated by the RedCap terminal can determine the frequency resource size of PDSCH scheduling and the number of time slots between PDCCH and PDSCH.

[0104] Therefore, in the technical solution of Example 1, the type or capability set of the terminal device (such as the RedCap terminal) is indicated in two stages respectively, which can avoid the reduction of PRACH resource utilization caused by excessive division of PRACH resources. At the same time, in the Msg 1 stage, the network device can identify the RedCap terminal, thereby optimizing the transmission of Msg2 / 3 / 4 and improving the spectrum efficiency.

[0105] Optionally, as Example 2, the first information is carried in the first information (Msg1) in the four-step random access process, and the second information is carried in the uplink information after the four-step random access process, such as Figure 7 shown.

[0106] Optionally, in Example 2, the first information is determined by at least one of the following:

[0107] PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink BWP for sending PRACH.

[0108] Optionally, in Example 2, the second information is determined by at least one of the following:

[0109] Information carried by PUSCH and information carried by PUCCH.

[0110] Alternatively, the second information includes at least one of the following: information carried by the PUSCH, information carried by the PUCCH.

[0111] That is to say, in Example 2, for the identification of the RedCap terminal in the random access process phase, the network device only needs to identify whether it is a RedCap terminal, or identify the corresponding capability set, and only optimize according to this identification information in the random access phase. After the random access phase, the RedCap terminal can report the second type or the second capability set, such as reporting the type or capability of the RedCap terminal through high-level signaling, so that the network device can optimize subsequent transmission based on the second type or the second capability set.

[0112] Optionally, as Example 3, the first information is carried in the PRACH of the first information (MsgA) in the two-step random access process, and the second information is carried in the PUSCH of the first information (Msg A) in the two-step random access process, such as Figure 8 shown.

[0113] Optionally, in Example 3, the first information is determined by at least one of the following:

[0114] PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink BWP for sending PRACH.

[0115] Optionally, in Example 3, the second information is determined by at least one of the following:

[0116] Scrambling code information of data carried by PUSCH, sequence information of PUSCH DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0117] It should be noted that for the two-step random access process, the first type or first capability set of the RedCap terminal can be indicated by the first information carried in the PRACH of Msg A, and the second type or second capability set of the RedCap terminal can be indicated by the second information carried in the PUSCH of Msg A. The advantage of this is that when the network device receives the PRACH of Msg A but does not receive the PUSCH of Msg A, a fallback RAR can be sent in Msg B. At this time, although the network device does not receive the PUSCH of Msg A, the first type or first capability set of the RedCap terminal can be determined through the PRACH of Msg A, thereby optimizing the transmission of Msg B.

[0118] Optionally, as Example 4, the first information is carried in the PRACH of the first information (MsgA) in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process, such as Fig. 9 shown.

[0119] Optionally, in Example 4, the first information is determined by at least one of the following:

[0120] PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink BWP for sending PRACH.

[0121] Optionally, in Example 4, the second information is determined by at least one of the following:

[0122] Information carried by PUSCH and information carried by PUCCH.

[0123] Alternatively, the second information includes at least one of the following: information carried by the PUSCH, information carried by the PUCCH.

[0124] That is, the terminal device can send the second information by means of capability reporting.

[0125] Optionally, as Example 5, the first information is carried in the PUSCH of the first information (MsgA) in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process, such as Fig.10 shown.

[0126] Optionally, in Example 5, the first information is determined by at least one of the following:

[0127] Scrambling code information of data carried by PUSCH, sequence information of PUSCH DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0128] The PUSCH DMRS configuration may include DMRS resources or ports.

[0129] Optionally, in Example 5, the second information is determined by at least one of the following:

[0130] Information carried by PUSCH and information carried by PUCCH.

[0131] Alternatively, the second information includes at least one of the following: information carried by the PUSCH, information carried by the PUCCH.

[0132] That is, the terminal device can send the second information by means of capability reporting.

[0133] It should be noted that the two-step random access process may also be referred to as a Type-2 random access process, and the four-step random access process may also be referred to as a Type-1 random access process.

[0134] Therefore, in the embodiment of the present application, the terminal device indicates the first type of the terminal device through the first information, and indicates the second type of the terminal device through the second information. That is, the terminal device indicates the type of the terminal device through two pieces of information at different stages, so that the network device can formulate different optimization schemes for transmission at different stages to improve spectrum efficiency.

[0135] Alternatively, the terminal device indicates the first capability set of the terminal device through the first information, and indicates the second capability set of the terminal device through the second information. That is, the terminal device indicates the capability set of the terminal device through two pieces of information at different stages, so that the network device can formulate different optimization schemes for transmission at different stages to improve spectrum efficiency.

[0136] Combination of the above Figures 5 to 10 , describes in detail the method embodiment of the present application, and the following is combined with Figures 11 to 15 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0137] Fig.11 A schematic block diagram of a terminal device 300 according to an embodiment of the present application is shown.

[0138] like Fig.11 As shown, the terminal device 300 includes:

[0139] The processing unit 310 is configured to indicate a first type of the terminal device through first information, and indicate a second type of the terminal device through second information; or, the terminal device indicates a first capability set of the terminal device through first information, and indicates a second capability set of the terminal device through second information;

[0140] The first information includes a channel and / or a signal, and the second information includes a channel and / or a signal.

[0141] Optionally, the first type of the terminal device is used to indicate that the terminal device is a reduced capability terminal;

[0142] The second type of the terminal device is used to indicate the type of the terminal device in the reduced capability terminal.

[0143] Optionally, at least one of bandwidth, number of receiving antennas, maximum modulation order, and processing capability corresponding to different types of terminals in the reduced capability terminals is different.

[0144] Optionally, the second type of the terminal device is pre-configured or agreed upon by protocol, or the second type of the terminal device is configured or indicated by a network device.

[0145] Optionally, the first capability set of the terminal device includes at least the number of receiving antennas of the terminal device;

[0146] The second capability set of the terminal device includes at least one of the following:

[0147] The bandwidth supported by the terminal device, the maximum modulation order supported by the terminal device, and the processing capability information of the terminal device.

[0148] Optionally, the first capability set of the terminal device is pre-configured or agreed upon by a protocol, or the first capability set of the terminal device is configured or indicated by a network device.

[0149] Optionally, the second capability set of the terminal device is pre-configured or agreed upon by protocol, or the second capability set of the terminal device is configured or indicated by the network device.

[0150] Optionally, the terminal device is a reduced capability terminal.

[0151] Optionally, the first information is carried in a first piece of information in a four-step random access process, and the second information is carried in a third piece of information in the four-step random access process; or,

[0152] The first information is carried in the first piece of information in the four-step random access process, and the second information is carried in the uplink information after the four-step random access process.

[0153] Optionally, the first information is carried in a physical random access process channel PRACH of the first information in the two-step random access process, and the second information is carried in a physical uplink shared channel PUSCH of the first information in the two-step random access process; or,

[0154] The first information is carried in the PRACH of the first information in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process.

[0155] Optionally, the first information is determined by at least one of the following:

[0156] PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink bandwidth part BWP for sending PRACH.

[0157] Optionally, the second information is determined by at least one of the following:

[0158] Scrambling code information of data carried by PUSCH, sequence information of PUSCH demodulation reference signal DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0159] Optionally, the first information is carried in the PUSCH of the first information in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process.

[0160] Optionally, the first information is determined by at least one of the following:

[0161] Scrambling code information of data carried by PUSCH, sequence information of PUSCH DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0162] Optionally, the second information is determined by at least one of the following:

[0163] The information carried by PUSCH and the information carried by the physical uplink control channel PUCCH.

[0164] Optionally, the terminal device 300 further includes:

[0165] The communication unit is used to send the first information and the second information respectively.

[0166] Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0167] It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the terminal device 300 are respectively to implement Figure 5 For the sake of brevity, the corresponding process of the terminal device in the method 200 is not repeated here.

[0168] Fig.12 A schematic block diagram of a network device 400 according to an embodiment of the present application is shown.

[0169] like Fig.12 As shown, the network device 400 includes:

[0170] The communication unit 410 is used to receive first information and second information sent by a terminal device, respectively, wherein:

[0171] The first information is used to indicate a first type of the terminal device, and the second information is used to indicate a second type of the terminal device; or, the first information is used to indicate a first capability set of the terminal device, and the second information is used to indicate a second capability set of the terminal device; the first information includes channels and / or signals, and the second information includes channels and / or signals.

[0172] Optionally, the first type of the terminal device is used to indicate that the terminal device is a reduced capability terminal;

[0173] The second type of the terminal device is used to indicate the type of the terminal device in the reduced capability terminal.

[0174] Optionally, at least one of bandwidth, number of receiving antennas, maximum modulation order, and processing capability corresponding to different types of terminals in the reduced capability terminals is different.

[0175] Optionally, the second type of the terminal device is pre-configured or agreed upon by protocol, or the second type of the terminal device is configured or indicated by a network device.

[0176] Optionally, the first capability set of the terminal device includes at least the number of receiving antennas of the terminal device;

[0177] The second capability set of the terminal device includes at least one of the following:

[0178] The bandwidth supported by the terminal device, the maximum modulation order supported by the terminal device, and the processing capability information of the terminal device.

[0179] Optionally, the first capability set of the terminal device is pre-configured or agreed upon by a protocol, or the first capability set of the terminal device is configured or indicated by a network device.

[0180] Optionally, the second capability set of the terminal device is pre-configured or agreed upon by protocol, or the second capability set of the terminal device is configured or indicated by the network device.

[0181] Optionally, the terminal device is a reduced capability terminal.

[0182] Optionally, the first information is carried in a first piece of information in a four-step random access process, and the second information is carried in a third piece of information in the four-step random access process; or,

[0183] The first information is carried in the first piece of information in the four-step random access process, and the second information is carried in the uplink information after the four-step random access process.

[0184] Optionally, the first information is carried in a physical random access process channel PRACH of the first information in the two-step random access process, and the second information is carried in a physical uplink shared channel PUSCH of the first information in the two-step random access process; or,

[0185] The first information is carried in the PRACH of the first information in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process.

[0186] Optionally, the first information is determined by at least one of the following:

[0187] PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink bandwidth part BWP for sending PRACH.

[0188] Optionally, the second information is determined by at least one of the following:

[0189] Scrambling code information of data carried by PUSCH, sequence information of PUSCH demodulation reference signal DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0190] Optionally, the first information is carried in the PUSCH of the first information in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process.

[0191] Optionally, the first information is determined by at least one of the following:

[0192] Scrambling code information of data carried by PUSCH, sequence information of PUSCH DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

[0193] Optionally, the second information is determined by at least one of the following:

[0194] The information carried by PUSCH and the information carried by the physical uplink control channel PUCCH.

[0195] Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0196] It should be understood that the network device 400 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the network device 400 are respectively to implement Figure 5 For the sake of brevity, the corresponding processes of the network device in the method 200 are not described in detail here.

[0197] Fig.13 It is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. Fig.13 The communication device 500 shown includes a processor 510, and the processor 510 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0198] Alternatively, if Fig.13As shown, the communication device 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

[0199] The memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .

[0200] Alternatively, if Fig.13 As shown, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0201] The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of the antennas may be one or more.

[0202] Optionally, the communication device 500 may specifically be a network device in an embodiment of the present application, and the communication device 500 may implement corresponding processes implemented by the network device in each method in the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0203] Optionally, the communication device 500 may specifically be a terminal device of an embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0204] Fig.14 It is a schematic structural diagram of the device of an embodiment of the present application. Fig.14 The device 600 shown includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0205] Alternatively, if Fig.14 As shown, the apparatus 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0206] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0207] Optionally, the apparatus 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0208] Optionally, the apparatus 600 may further include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0209] Optionally, the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods in the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0210] Optionally, the apparatus may be applied to a terminal device in an embodiment of the present application, and the apparatus may implement corresponding processes implemented by the terminal device in each method in an embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0211] Optionally, the device mentioned in the embodiment of the present application may also be a chip, for example, a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0212] Fig.15 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. Fig.15 As shown, the communication system 700 includes a terminal device 710 and a network device 720 .

[0213] Among them, the terminal device 710 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 720 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0214] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0215] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0216] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0217] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0218] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0219] Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0220] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0221] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0222] Optionally, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0223] The embodiment of the present application also provides a computer program.

[0224] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0225] Optionally, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0226] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0227] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0228] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0229] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0230] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0231] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0232] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device indicates a first type of the terminal device through first information, and indicates a second type of the terminal device through second information; or, the terminal device indicates a first capability set of the terminal device through first information, and indicates a second capability set of the terminal device through second information; The first information includes a channel and / or a signal, and the second information includes a channel and / or a signal.

2. The method according to claim 1, characterized in that The first capability set of the terminal device includes at least the number of receiving antennas of the terminal device; The second capability set of the terminal device includes at least one of the following: The bandwidth supported by the terminal device, the maximum modulation order supported by the terminal device, and the processing capability information of the terminal device.

3. The method according to claim 1 or 2, characterized in that The first capability set of the terminal device is pre-configured or agreed upon by a protocol, or the first capability set of the terminal device is configured or indicated by a network device.

4. The method according to claim 1, 2 or 3, characterized in that: The second capability set of the terminal device is pre-configured or agreed upon by a protocol, or the second capability set of the terminal device is configured or indicated by a network device.

5. The method according to any one of claims 2 to 4, characterized in that The terminal device is a reduced capability terminal.

6. The method according to any one of claims 1 to 5, characterized in that The first information is carried in the first piece of information in the four-step random access process, and the second information is carried in the third piece of information in the four-step random access process; or, The first information is carried in the first piece of information in the four-step random access process, and the second information is carried in uplink information after the four-step random access process.

7. The method according to any one of claims 1 to 5, characterized in that The first information is carried in a physical random access process channel PRACH of the first information in the two-step random access process, and the second information is carried in a physical uplink shared channel PUSCH of the first information in the two-step random access process; or, The first information is carried in the PRACH of the first information in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process.

8. The method according to claim 6 or 7, characterized in that The first information is determined by at least one of the following: PRACH, PRACH timing, PRACH format, random access preamble, and initial uplink bandwidth part BWP for sending PRACH.

9. The method according to claim 6 or 7, characterized in that The second information is determined by at least one of the following: Scrambling code information of data carried by PUSCH, sequence information of PUSCH demodulation reference signal DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

10. The method according to any one of claims 1 to 5, characterized in that The first information is carried in the PUSCH of the first information in the two-step random access process, and the second information is carried in the uplink information after the two-step random access process.

11. The method according to claim 10, characterized in that The first information is determined by at least one of the following: Scrambling code information of data carried by PUSCH, sequence information of PUSCH DMRS, information carried by PUSCH, PUSCH resource configuration, and PUSCH DMRS configuration.

12. The method according to claim 11, characterized in that The second information is determined by at least one of the following: The information carried by PUSCH and the information carried by the physical uplink control channel PUCCH.

13. The method according to any one of claims 1 to 12, characterized in that The method further comprises: The terminal device sends the first information and the second information respectively.

14. A wireless communication method, characterized in that: include: The network device receives the first information and the second information sent by the terminal device respectively, wherein: The first information is used to indicate a first type of the terminal device, and the second information is used to indicate a second type of the terminal device; or, the first information is used to indicate a first capability set of the terminal device, and the second information is used to indicate a second capability set of the terminal device; the first information includes channels and / or signals, and the second information includes channels and / or signals.

15. The method according to claim 14, characterized in that The first type of the terminal device is used to indicate that the terminal device is a reduced capability terminal; The second type of the terminal device is used to indicate a type of the terminal device in a reduced capability terminal.

16. The method according to claim 15, characterized in that Different types of terminals in the reduced capability terminals correspond to at least one of different bandwidths, numbers of receiving antennas, maximum modulation orders, and processing capabilities.

17. The method according to claim 15 or 16, characterized in that The second type of the terminal device is pre-configured or agreed upon by protocol, or the second type of the terminal device is configured or indicated by a network device.

18. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 13.

19. A network device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 14 to 16.

20. A computer-readable storage medium, characterized in that: Used to store a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 17.

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