Wireless communication method and apparatus, device, and readable storage medium

Abstract

The present application relates to the field of communications, and discloses a wireless communication method and apparatus, a device, and a readable storage medium. The method of embodiments of the present application comprises: a terminal receiving first configuration information, wherein the first configuration information is used for indicating at least one random access resource, and the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type; and sending a random access message on the basis of the first configuration information.

Description

Wireless communication method, apparatus, device, and readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 22, 2023, with application number 202311794432.X and invention name “Wireless Communication Method, Apparatus, Equipment and Readable Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a wireless communication method, apparatus, device, and readable storage medium. Background Art

[0004] In a communication system, network devices can configure random access resources for terminals, allowing them to initiate random access. Terminals in a communication system may have varying capabilities. Because the network cannot determine a terminal's duplex capability before access, random access performance can be poor. Summary of the Invention

[0005] Embodiments of the present application provide a wireless communication method, apparatus, device, and readable storage medium, which can improve the random access performance of a terminal.

[0006] In a first aspect, a wireless communication method is provided, the method comprising:

[0007] The terminal receives first configuration information, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type;

[0008] Send a random access message according to the first configuration information.

[0009] In a second aspect, a wireless communication method is provided, the method comprising:

[0010] The network side device sends first configuration information to the terminal, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type;

[0011] A random access message is received according to the first configuration information.

[0012] According to a third aspect, a wireless communication device is provided, including:

[0013] a receiving unit, configured to receive first configuration information, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type;

[0014] A sending unit is configured to send a random access message according to the first configuration information.

[0015] According to a fourth aspect, a wireless communication device is provided, including:

[0016] a sending unit, configured to send first configuration information to a terminal, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type;

[0017] A receiving unit is configured to receive a random access message according to the first configuration information.

[0018] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0019] In a sixth aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0020] In the seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0021] In an eighth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0022] In the ninth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0023] In the tenth aspect, a computer program / program product is provided, which is stored in a storage medium and executed by at least one processor to implement the steps of the wireless communication method as described in any one of the first to second aspects.

[0024] In an embodiment of the present application, the network side device can configure at least one random access resource for the terminal, and the at least one random access resource corresponds to at least one terminal capability or duplex mode type, so that the terminal can select a suitable random access resource from the at least one random access resource to send a random access message according to the capability or duplex mode type of the terminal, which is conducive to improving random access performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application;

[0026] FIG2 is a schematic diagram of a full-duplex system provided by the present application;

[0027] FIG3 is a schematic diagram of another full-duplex system provided by the present application;

[0028] FIG4 is a schematic diagram of a gNB full-duplex and UE full-duplex provided in this application;

[0029] FIG5 is a schematic diagram of full-duplex and guard interval (GB) provided by the present application;

[0030] FIG6 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application;

[0031] FIG7 is a schematic diagram of an arrangement of random access resources provided in an embodiment of the present application;

[0032] FIG8 is a schematic diagram of another arrangement of random access resources provided in an embodiment of the present application;

[0033] FIG9 is a schematic block diagram of a wireless communication device according to an embodiment of the present application;

[0034] FIG10 is a schematic block diagram of a line communication device provided according to an embodiment of the present application;

[0035] FIG11 is a schematic block diagram of a communication device provided according to an embodiment of the present application;

[0036] FIG12 is a schematic diagram of the hardware structure of a terminal provided according to an embodiment of the present application;

[0037] FIG13 is a schematic block diagram of a network-side device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are 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 are within the scope of protection of this application.

[0039] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0040] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0041] It is worth noting that the technology described in the embodiments of the present application is not limited to the Internet of Things (IoT) system, but can also be used in other wireless communication systems, such as Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), Bluetooth systems, or other systems. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description. However, these techniques can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0042] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0043] To facilitate a better understanding of the embodiments of the present application, the enhanced duplex mode related to the present application is described.

[0044] In 5G mobile communication systems, full-duplex technology has been enhanced to accommodate diverse scenarios and service requirements. Key 5G scenarios include enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), and massive machine-type communication (mMTC). These scenarios place high demands on the system for reliability, low latency, high bandwidth, and wide coverage.

[0045] In NR, configuring full-duplex mode can significantly improve the latency and coverage performance of the Time Division Duplex (TDD) system. Specifically, configuring subband non-overlapping full-duplex mode allows simultaneous uplink and downlink transmission and reception on non-overlapping subband resources within a single carrier bandwidth. Because the uplink and downlink subbands do not overlap, self-interference is reduced, which can reduce transmission latency and enhance coverage.

[0046] For a downlink time slot (DL slot), the network configures the downlink (DL) bandwidth part (Band Width Part, BWP) for the UE (configured by TDD uplink and downlink common configuration (tdd-UL-DL-ConfigurationCommon) or TDD uplink and downlink dedicated configuration (tdd-UL-DL-ConfigurationDedicated)), as shown in time slot 1 in Figure 2; for an uplink (UL) time slot, the network configures the UL BWP for the UE (configured by TDD uplink and downlink common configuration (tdd-UL-DL-ConfigurationCommon) or TDD uplink and downlink dedicated configuration (tdd-UL-DL-ConfigurationDedicated)), as shown in time slot 4 in Figure 3.

[0047] For a downlink timeslot (DL slot) (configured by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), in a full duplex scenario, as shown in Figure 2, there are the following cases:

[0048] Case 1: Configure DL BWP, such as slot 1;

[0049] Case 2: Configure DL BWP and uplink sub-band (UL sub-band), such as slot 2.

[0050] For an uplink timeslot (UL slot) (configured by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), in a full duplex scenario, as shown in Figure 3, there are the following cases:

[0051] Case 3: Configure UL BWP, such as slot 4;

[0052] Case 4: Configure UL BWP and downlink sub-band (DL sub-band), such as slot 5.

[0053] For sub-band full duplex (SBFD) operation, one SBFD sub-band consists of one resource block (RB) or a set of consecutive RBs with the same transmission direction.

[0054] The time unit (e.g., slot or symbol) in which the gNB uses SBFD operation may be referred to as an SBFD time unit (e.g., slot or symbol).

[0055] An exemplary duplex mode is: full-duplex on the network side, where uplink and downlink transmissions can occur simultaneously at different frequency locations at the same time. To prevent interference between uplink and downlink transmissions, a guard band (GB) is reserved between the frequency locations corresponding to different transmission directions (corresponding to duplex sub-bands); half-duplex on the terminal side, consistent with TDD, where only uplink or downlink transmissions can occur at the same time, not both. It is understood that in this duplex mode, uplink and downlink transmissions on the network side can only be directed to different terminals at the same time.

[0056] Another exemplary duplex mode is: both the terminal side and the network side are full-duplex, as shown in Figure 4, that is, both the terminal side and the network side work in duplex mode. Specifically, for the terminal side and the network side, at the same time, uplink transmission (uplink, UL) and downlink transmission (downlink, DL) can be carried out simultaneously at different frequency domain positions.

[0057] For full-duplex at the UE side, a larger GB (larger than the GB of the base station frequency division (FD)) may be required to suppress self-interference, as shown in FIG5 .

[0058] For a communication device, simultaneous UL reception and DL transmission can cause self-interference. To ensure transmission in the interfered direction, the communication device needs to have self-interference cancellation capabilities, such as reserving GB between the receive and transmit bands. However, this reduces UE throughput.

[0059] To facilitate a better understanding of the embodiments of the present application, the random access process related to the present application is described.

[0060] The random access procedure may be a contention-based random access procedure or a non-contention-based random access procedure. The random access procedure may be a four-step random access procedure (also known as a Type-1 random access procedure) or a two-step random access procedure (also known as a Type-2 random access procedure).

[0061] In the four-step random access procedure (4-step RACH), the UE first sends message 1 (Msg1) to the network, which contains a preamble. After the network detects the preamble, it sends message 2 (Msg2) or a random access response (RAR) message, which contains the preamble number detected by the network and the uplink radio resources allocated to the UE for sending message 3 (Msg3). After receiving Msg2, the UE confirms that at least one of the preamble numbers carried in Msg2 matches the number of the preamble it sent. Then, based on the resources indicated by the RAR, it sends Msg3 containing contention resolution information. After receiving Msg3, the network sends message 4 (Msg4) containing contention resolution information. Upon receiving Msg4, the UE confirms that the resolution information is consistent with the contention resolution information sent in Msg3, thus completing the four-step random access.

[0062] The network includes uplink grant (UL grant) information in the RAR to indicate the scheduling information of the Msg3 Physical Uplink Shared Channel (PUSCH), and includes information such as the Random Access Preamble ID (RAPID), the Temporary Cell Radio Network Temporary Identity (TC-RNTI), and the Timing Advance (TA). If the network does not receive the Msg3 PUSCH, it can schedule the retransmission of the Msg3 PUSCH in the Physical Downlink Control Channel (PDCCH) scrambled by the TC-RNTI.

[0063] For the contention-based random access process, different UEs randomly select preambles for transmission. In this way, different UEs may select the same preamble to send on the same time-frequency radio resources (RACH Occasion (RO) resources). This situation can be understood as a UE preamble conflict. In this case, different UEs will receive the same RAR. At this time, different UEs will transmit Msg3 PUSCH according to the scheduling information in the RAR UL grant. The network decodes the PUSCH (including contention resolution information) sent by the UE on the Msg3 PUSCH scheduling resources, so the network will include the contention resolution information received in Msg3 in Msg4. If the contention resolution information in Msg4 received by the UE matches the contention resolution information sent by the UE in Msg3 PUSCH, the UE considers that the contention resolution is successful. If they do not match, the contention resolution is considered unsuccessful.

[0064] If the contention resolution is unsuccessful, the UE reselects RACH resources, performs physical random access channel (PRACH) transmission, and makes the next random access attempt.

[0065] In the two-step random access (2-step RACH) process, the first step is for the UE to send MsgA to the network. After receiving MsgA, the network sends MsgB to the UE. If the UE does not receive MsgB within a certain period of time, the UE increments the counter that counts the number of times MsgA has been sent and resends MsgA. If the counter counts the number of times MsgA has been sent, the UE switches from the 2-step random access process to the 4-step random access process.

[0066] MsgA consists of the MsgA preamble and MsgA PUSCH parts. The preamble part is sent on the RO used for 2-step RACH, and the PUSCH part is sent on the MsgA PUSCH resources associated with the MsgA preamble and RO. MsgA PUSCH resources are a set of PUSCH resources configured for each PRACH time slot, including time-frequency resources and demodulation reference signal (DMRS) resources, and are associated with the PRACH resources within the PRACH slot.

[0067] In a communication system supporting enhanced duplex mode, different terminals have different capabilities. For example, in a RACH transmission opportunity, terminals with different capabilities may initiate random access. Therefore, how terminals perform random access is an urgent problem that needs to be solved.

[0068] The wireless communication method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0069] FIG6 is a schematic diagram of a wireless communication method provided in an embodiment of the present application. As shown in FIG6 , the method 200 may include at least part of the following:

[0070] S210: The network-side device sends first configuration information to the terminal, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability and / or at least one duplex mode type;

[0071] Correspondingly, the terminal receives the first configuration information;

[0072] S220: The terminal sends a random access message according to the first configuration information.

[0073] Correspondingly, the network side device receives the random access message according to the first configuration information.

[0074] In the embodiments of the present application, the duplex mode type is also called duplex type, working mode type, transmission mode type, etc., and the present application does not limit this.

[0075] In the embodiments of the present application, full-duplex mode, full-duplex, enhanced duplex mode, enhanced duplex, cross duplex (XDD), enhanced full-duplex, enhanced full-duplex mode, and sub-band full-duplex refer to the same concept, which can be expressed as supporting uplink sub-band transmission within a downlink time unit, and / or supporting downlink sub-band transmission on an uplink time unit, and / or supporting at least one of uplink sub-band and downlink sub-band transmission on a flexible time unit, and / or uplink or downlink resource transmission on a set of at least two of the above three time units. The time unit includes but is not limited to a time slot, a symbol, a subband, etc.

[0076] The uplink time unit in the embodiment of the present application may include but is not limited to at least one of the following:

[0077] Orthogonal frequency-division multiplexing (OFDM) symbol, time slot, subframe, frame, microsecond, millisecond, second, minute, hour, day, week, month.

[0078] The flexible time unit in the embodiment of the present application may include but is not limited to at least one of the following:

[0079] Orthogonal frequency-division multiplexing (OFDM) symbol, time slot, subframe, frame, microsecond, millisecond, second, minute, hour, day, week, month.

[0080] The downlink time unit in the embodiment of the present application may include but is not limited to at least one of the following: orthogonal frequency-division multiplexing (OFDM) symbol, time slot, subframe, frame, microsecond, millisecond, second, minute, hour, day, week, and month.

[0081] The random access channel opportunity (RACH Occasion, RO) in the embodiment of the present application may include RO resources on one time unit, or may also include RO resources across at least two time units.

[0082] It should be noted that the uplink resources corresponding to enhanced duplexing may refer to transmission resources that support uplink subbands on downlink time units, and / or, transmission resources that support downlink subbands on uplink time units, and / or, at least one transmission resource that supports uplink subbands and downlink subbands on flexible time units.

[0083] In an embodiment of the present application, the random access message may be an uplink message in a random access process, and the random access process may be a contention-based random access process, or a non-contention-based random access process, and may be a 4-step random access process or a 2-step random access process.

[0084] Exemplarily, the random access message includes, but is not limited to, at least one of the following:

[0085] Preamble;

[0086] Message 1 in the four-step random access process, namely Msg1;

[0087] Message 3 in the four-step random access process, namely Msg3;

[0088] Message A in the two-step random access process, namely MsgA.

[0089] The preamble resources described in the embodiment of the present application include:

[0090] Contention based random access (CBRA) preamble resources, and / or

[0091] Preamble resources based on non-contention random access (Contention free RACH, CFRA).

[0092] For example, the preamble resources include preamble resources in a 4-step RACH process or preamble resources in a 2-step RACH process.

[0093] The downlink reference signal in the embodiment of the present application may include but is not limited to at least one of the following:

[0094] Synchronization Signal Block (SSB), Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS).

[0095] In some embodiments, the random access resource includes but is not limited to at least one of the following:

[0096] Index information of random access message;

[0097] Type information of random access message;

[0098] Group information of the random access message, such as the group index (or group identifier) ​​of the group to which it belongs;

[0099] Sequence information of random access messages;

[0100] Number of random access messages.

[0101] For example, the random access message is a preamble, and the preamble resource may include at least one of the following:

[0102] Preamble index information;

[0103] Preamble type or format information, such as long preamble type or format, short preamble type or format;

[0104] Preamble grouping information, such as the group index (or group identifier) ​​of the group to which it belongs;

[0105] Preamble sequence information, such as the root sequence information used to generate the preamble;

[0106] The number of preambles.

[0107] Therefore, by configuring different preamble resources, such as different preamble indexes or groups or types, to correspond to different terminal capabilities or duplex mode types, the network side device can obtain the terminal's capabilities or duplex mode type based on the preamble resources used by the terminal, such as the preamble index or group or type, and further allocate resources for subsequent uplink transmission of the terminal based on the terminal's capabilities or duplex mode type, such as allocating resources for subsequent random access message transmission.

[0108] In an embodiment of the present application, the index information of the random access message, or the identification information (ID) of the random access message, is referred to as the first configuration information. For example, the first configuration information may include the start index and / or end index of the random access message, or may explicitly include the index of each random access message. Specifically, for example, the first configuration information may indicate a feature combination preamble, which is used to indicate preambles of multiple different feature combinations, including different preambles corresponding to different terminal capabilities or duplex modes.

[0109] In the embodiment of the present application, the association relationship between the downlink reference signal and the RO, or the mapping relationship between the downlink reference signal and the RO may also refer to the association between the downlink signal and the uplink signal / resource in a general sense, such as the relationship between CSI-RS and RO.

[0110] In the embodiment of the present application, a random access channel opportunity (RACH Occasion, RO) or PRACH Occasion, RACH transmission opportunity, refers to the time-frequency resources required for sending a PRACH sequence.

[0111] In the embodiment of the present application, the random access message and the downlink reference signal are associated with each other, or in other words, the random access resource and the downlink reference signal resource are associated with each other.

[0112] For example, taking the downlink reference signal as SSB as an example, when the terminal selects an SSB, the random access resource associated with the SSB can be used to send a random access message.

[0113] In some embodiments, the terminal capabilities include but are not limited to at least one of the following:

[0114] duplex capability of the terminal;

[0115] In full-duplex mode, the guard band capability of the terminal;

[0116] The transmit power capability of the terminal in full-duplex mode;

[0117] The interference suppression capability of the terminal in full-duplex mode.

[0118] Exemplarily, the duplex capability of the terminal includes but is not limited to at least one of the following:

[0119] duplex mode supported by the terminal, or whether it supports full-duplex mode (or whether it has full-duplex capability), or whether it supports full-duplex mode or half-duplex mode (or whether it has full-duplex capability or half-duplex capability);

[0120] Whether the terminal supports signal reception in the downlink subband of the uplink time unit (referred to as the first duplex mode), that is, whether the terminal supports the first duplex mode;

[0121] Whether the terminal supports signal transmission in the uplink subband of the downlink time unit (recorded as the second duplex mode), that is, whether the terminal supports the second duplex mode.

[0122] Optionally, the network side device can configure random access resources corresponding to different duplex capabilities for the terminal. In this way, the terminal can select appropriate random access resources according to its own duplex capability to initiate random access, which is conducive to meeting the random access requirements of terminals with different duplex capabilities.

[0123] For example, the at least one random access resource may include at least one of the following random access resources:

[0124] Random access resources corresponding to full-duplex mode;

[0125] Random access resources corresponding to half-duplex mode;

[0126] random access resources corresponding to the first duplex mode;

[0127] Random access resources corresponding to the second duplex mode.

[0128] In some embodiments, the guard band capability of a terminal may refer to the size of the guard band required to ensure interference isolation or interference suppression between a downlink sub-band and an uplink sub-band when the terminal operates in full-duplex mode.

[0129] Exemplarily, the protection band capability of the terminal includes but is not limited to at least one of the following:

[0130] Information about the number of guard bands supported by the terminal, such as support for one or more guard bands;

[0131] Bandwidth information of the guard band supported by the terminal, such as the size of one or more supported guard bands, such as the minimum required guard band size.

[0132] In some embodiments, the guard band capability of the terminal is associated (or corresponding) with at least one of the following information:

[0133] The bandwidth of the uplink transmission of the terminal (denoted as N

[0140] , ,

[0147] ,

[0148] ,

[0145] ,

[0146] , , ,

[0141] ,

[0142] , ,

[0149] , , , , ,

[0143] ,

[0144] , , );

[0134] The bandwidth of the downlink transmission of the terminal (denoted as N UL-bw );

[0135] The maximum transmit power of the terminal (denoted as P UL-PC,Tx );

[0136] The interference suppression capability of the terminal (denoted as α SI );

[0137] The spatial characteristics of the uplink transmission of the terminal;

[0138] The spatial characteristics of the downlink transmission of the terminal.

[0139] Optionally, the association relationship between the guard band capability and the above information can be predefined or configured by the network side device.

[0140] Taking the guard band capability and the uplink transmit power of the terminal (and other information is similar) having a corresponding relationship as an example, assume there is a corresponding relationship in Table 1, and this corresponding relationship is predefined by the protocol or network configured.

[0141] The maximum transmit power of the terminal is M, satisfying B < M < C, then the terminal reports a guard band capability information, including {Guard band = X2}.

[0142] Table 1

[0143] Optionally, the larger the uplink transmission bandwidth of the terminal, the larger the required guard band. [[ID=�4]]

[0144] Optionally, the larger the downlink transmission bandwidth of the terminal, the larger the required guard band.

[0145] Optionally, the larger the uplink transmit power of the terminal, the larger the required guard band. <~

[0146] Optionally, the stronger the interference suppression capability of the terminal, the smaller the required guard band

[0147] Optionally, the more relevant the spatial characteristics of the uplink transmission of the terminal are to the received spatial characteristics, the larger the required guard band.

[0148] Optionally, the more relevant the spatial characteristics of the downlink transmission of the terminal are to the transmitted spatial characteristics, the larger the required guard band.

[0149] Optionally, the network side device can configure random access resources corresponding to different guard band capabilities. In this way, the terminal can select appropriate random access resources according to its own guard band capability to initiate random access, which is conducive to meeting the random access requirements of terminals with different guard band capabilities.

[0150] For example, the at least one random access resource may include random access resources corresponding to multiple different guard band capabilities. For example, it may include a random access resource corresponding to a first guard band capability (e.g., a guard band not less than X1) and a random access resource corresponding to a second guard band capability (a guard band not less than X2), where X1 is less than X2. The optional units of X1 and X2 may be kHz. Alternatively, the at least one random access resource may include random access resources corresponding to multiple guard band capabilities, which is not limited in this application.

[0151] In some embodiments, the transmit power capability of the terminal may include one or more maximum transmit powers, which may refer to the maximum transmit power allowed in full-duplex mode to ensure interference isolation or interference suppression between the downlink subband and the uplink subband.

[0152] In some embodiments, the transmit power capability of the terminal is associated with (or corresponds to) at least one of the following information:

[0153] The frequency domain interval between the downlink transmission and uplink transmission of the terminal (denoted as N DL-UL-gap );

[0154] The uplink transmission bandwidth of the terminal;

[0155] The downlink transmission bandwidth of the terminal;

[0156] interference suppression capability of the terminal;

[0157] spatial characteristics of uplink transmission of the terminal;

[0158] The spatial characteristics of downlink transmission of the terminal.

[0159] Optionally, the association between the transmit power capability and the above information may be predefined or configured by a network-side device.

[0160] Optionally, the larger the uplink transmission bandwidth of the terminal, the smaller the allowed transmit power.

[0161] Optionally, the larger the downlink transmission bandwidth of the terminal, the smaller the allowed transmit power.

[0162] Optionally, the stronger the interference suppression capability of the terminal, the greater the allowed transmit power.

[0163] Optionally, the more correlated the spatial characteristics of uplink transmission and reception of the terminal are, the smaller the allowed transmit power is.

[0164] Optionally, the more correlated the spatial characteristics of the terminal's downlink transmission are with the spatial characteristics of the transmission, the smaller the allowed transmit power is.

[0165] Optionally, the network side device can configure random access resources corresponding to different transmit power capabilities. In this way, the terminal can select appropriate random access resources according to its own transmit power capability to initiate random access, which is conducive to meeting the random access requirements of terminals with different transmit power capabilities.

[0166] For example, the at least one random access resource may include random access resources corresponding to multiple different transmit power capabilities. For example, it may include random access resources corresponding to a first transmit power capability (e.g., a maximum transmit power not greater than Y1) and random access resources corresponding to a second transmit power capability (e.g., a maximum transmit power not greater than Y2), where Y1 is less than Y2. Alternatively, the at least one random access resource may include random access resources corresponding to multiple transmit power capabilities, which is not limited in this application.

[0167] In some embodiments, the interference suppression capability of the terminal is used to indicate the degree of interference suppression that can be provided by the transmitting end / receiving end during full-duplex transmission, for example, including one or more interference suppression capability indicators.

[0168] In some embodiments, the interference suppression capability of the terminal is associated with (or corresponds to) at least one of the following information:

[0169] The frequency domain interval between downlink transmission and uplink transmission of the terminal;

[0170] The uplink transmission bandwidth of the terminal;

[0171] The downlink transmission bandwidth of the terminal;

[0172] the maximum transmit power of the terminal;

[0173] spatial characteristics of uplink transmission of the terminal;

[0174] The spatial characteristics of downlink transmission of the terminal.

[0175] Optionally, the association between the interference suppression capability and the above information may be predefined or configured by a network-side device.

[0176] Optionally, the larger the uplink transmission bandwidth of the terminal, the stronger the required interference suppression capability.

[0177] Optionally, the larger the downlink transmission bandwidth of the terminal, the stronger the required interference suppression capability.

[0178] Optionally, the greater the uplink transmission power of the terminal, the stronger the interference suppression capability required.

[0179] Optionally, the more correlated the spatial characteristics of uplink transmission and reception of the terminal are, the stronger the interference suppression capability required.

[0180] Optionally, the more the spatial characteristics of downlink transmission of the terminal are correlated with the spatial characteristics of transmission, the stronger the required interference suppression capability is.

[0181] Optionally, the network side device can configure random access resources corresponding to different interference suppression capabilities. In this way, the terminal can select appropriate random access resources to initiate random access based on its own interference suppression capability, which is conducive to meeting the random access requirements of terminals with different interference suppression capabilities.

[0182] For example, the at least one random access resource may include random access resources corresponding to multiple different interference suppression capabilities. For example, it may include a random access resource corresponding to a first interference suppression capability and a random access resource corresponding to a second interference suppression capability. Alternatively, the at least one random access resource may include random access resources corresponding to multiple interference suppression capabilities, which is not limited in this application.

[0183] In some embodiments of the present application, the S220 may further include:

[0184] determining, by the terminal, a target random access resource from the at least one random access resource according to the first configuration information and a capability of the terminal;

[0185] Sending a random access message according to the target random access resource.

[0186] For example, the terminal determines a target random access resource from the at least one random access resource according to the duplex capability of the terminal, and then uses the target random access resource to send a random access message, wherein the target random access resource is a random access resource corresponding to the duplex capability of the terminal.

[0187] For another example, the terminal determines a target random access resource from the at least one random access resource based on the interference suppression capability, and then uses the target random access resource to send a random access message, wherein the target random access resource is a random access resource corresponding to the interference suppression capability of the terminal.

[0188] Correspondingly, the network side device can determine the capability or duplex mode type of the terminal according to the random access resource of the received random access message. Further, the network side device can configure uplink transmission in the subsequent random access process according to the capability or duplex mode type of the terminal.

[0189] In some embodiments, the at least one duplex mode type includes but is not limited to at least one of the following:

[0190] Fully overlapped full-duplex mode;

[0191] Subband non-overlapping full duplex mode;

[0192] Half-duplex mode;

[0193] a first duplex mode, wherein, in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit;

[0194] A second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

[0195] In some embodiments, the fully overlapping full-duplex mode means that the terminal can receive on a DL subband and transmit on a UL subband simultaneously, wherein the DL and UL subbands completely overlap.

[0196] In some embodiments, sub-band non-overlapping full-duplex means that a terminal can simultaneously receive on a DL sub-band and transmit on a UL sub-band, where the DL and UL sub-bands do not overlap.

[0197] In some embodiments, in half-duplex mode, the terminal cannot perform uplink transmission and downlink reception simultaneously.

[0198] In some embodiments, the at least one random access resource includes but is not limited to at least one of the following random access resources:

[0199] Random access resources corresponding to fully overlapping full-duplex mode;

[0200] Random access resources corresponding to sub-band non-overlapping full-duplex mode;

[0201] Random access resources corresponding to half-duplex mode;

[0202] random access resources corresponding to the first duplex mode;

[0203] Random access resources corresponding to the second duplex mode.

[0204] In some embodiments of the present application, the S220 may further include:

[0205] The terminal determines, according to the first configuration information and a duplex mode type used (or configured) by the terminal, a target random access resource from the at least one random access resource;

[0206] Sending a random access message according to the target random access resource.

[0207] For example, if the duplex mode type currently used by the terminal is the fully overlapping full-duplex mode, the terminal may select the random access resource corresponding to the fully overlapping full-duplex mode as the target random access resource.

[0208] For another example, if the duplex mode currently used by the terminal is a half-duplex mode, the terminal may select a random access resource corresponding to the half-duplex mode as the target random access resource.

[0209] For another example, if the duplex mode type currently used by the terminal is the sub-band non-overlapping full-duplex mode, the terminal may select the random access resource corresponding to the sub-band non-overlapping full-duplex mode as the target random access resource.

[0210] In some embodiments, the resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following:

[0211] A first resource type, where the first resource type is used to indicate a time domain resource whose time domain format is uplink;

[0212] A second resource type, where the second resource type is used to indicate that the time domain format is the first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal;

[0213] a third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal;

[0214] a fourth resource type, where the fourth resource type is used to indicate a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value;

[0215] The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

[0216] Optionally, the first preset value may be predefined or configured by a network-side device.

[0217] In some embodiments, the downlink public signal or downlink broadcast signal may include but is not limited to at least one of the following:

[0218] SSB, System Information Block (SIB), Master Information Block (MIB), Physical Broadcast Channel (PBCH), and Paging message.

[0219] In an embodiment of the present application, the SSB and synchronization signal / physical broadcast channel block (SS / PBCH block) can be interchangeable or replaced with other names, and can refer to any module that contains at least part of a synchronization signal, broadcast signal or other downlink broadcast signal.

[0220] In some embodiments, the reference signal may include, but is not limited to, at least one of the following:

[0221] Synchronization Signal Block (SSB), Channel State Information Reference Signal (CSI-RS), Tracking Reference Signal (TRS).

[0222] In some embodiments, the time domain resources with the time domain format of uplink (UL) may be expressed as: time domain resources with the time domain type of uplink (UL), for example, including one or more uplink time units.

[0223] In some embodiments, the time domain resource having a first time domain format (eg, X) may be expressed as a time domain resource having a flexible time domain type, for example, including one or more flexible time units.

[0224] Optionally, the time domain format or time domain type of the time domain resource may be determined through full-duplex sub-band configuration (XDD configuration) or full-duplex sub-band indication (XDD indication).

[0225] For example, the time domain format is indicated by TDD-UL-DL-Configuration, such as DL, UL, Flexible.

[0226] For another example, the time domain type is indicated by xdd-UL-DL-Configuration, such as full downlink (Full DL), full uplink (Full UL), and SBFD X.

[0227] Optionally, a frequency format (Frequency format) may also be indicated by configuring a full-duplex subband, such as DL subband, UL subband, Guard band, DL BWP, and UL BWP.

[0228] In some embodiments, the at least one random access resource is associated with (or corresponds to) a downlink reference signal or a downlink reference signal set.

[0229] Therefore, in an embodiment of the present application, by associating random access resources with downlink reference signals, the terminal can select appropriate spatial characteristics to send random access messages based on the reception status of the downlink reference signal, thereby improving the success rate of the network side device in successfully receiving the random access message.

[0230] In some specific embodiments, the at least one random access resource is associated with the same downlink reference signal or downlink reference signal set. For example, random access resources corresponding to one or more different terminal capabilities / duplex mode types may be associated with the same downlink reference signal or downlink reference signal set.

[0231] For example, random access resources corresponding to different terminal capabilities / duplex mode types are configured based on the same downlink reference signal or downlink reference signal set. For example, based on the first downlink reference signal or the first downlink reference signal set, one or more random access resources corresponding to the terminal capability / duplex mode type are respectively configured.

[0232] In a specific embodiment, preamble resources corresponding to different terminal capabilities / duplex mode types are configured based on one or more downlink signals. For example, preamble resources are configured per beam, per SSB, per SSB set, or per SSB type. For example, based on downlink signal 1 or downlink signal set 1, one or more preamble resources corresponding to terminal capabilities / duplex mode types are respectively configured.

[0233] Therefore, in an embodiment of the present application, random access resources corresponding to one or more different terminal capabilities / duplex mode types can be associated with the same downlink reference signal. In this way, different types of terminals can select appropriate beam directions from the same downlink reference signal set for transmission. Such network deployment can ensure uniform coverage and uniform distribution of random access resources.

[0234] In some other specific embodiments, the at least one random access resource is associated with an independent downlink reference signal or downlink reference signal set. Optionally, in this case, the downlink reference signals or downlink reference signal sets associated with different random access resources may be the same, or may be different.

[0235] For example, random access resources corresponding to a first terminal capability may be individually associated and mapped with a downlink reference signal or a downlink reference signal set. Random access resources corresponding to a second terminal capability may also be individually associated and mapped with a downlink reference signal or a downlink reference signal set. In other words, the association between random access resources corresponding to different terminal capabilities / duplex mode types and downlink reference signals / downlink reference signal sets may be independently configured.

[0236] In some specific embodiments, preamble resources corresponding to different terminal capabilities / duplex mode types are independently configured. For example, preamble resource 1 corresponding to a given terminal capability / duplex mode type is independently associated with all downlink reference signals; preamble resource 2 corresponding to another terminal capability / duplex mode type is also independently associated with all downlink reference signals. The association between preamble resources corresponding to different terminal capabilities / duplex mode types and downlink reference signals can also be configured independently.

[0237] Therefore, in an embodiment of the present application, random access resources corresponding to one or more different terminal capabilities / duplex mode types can be associated with different downlink reference signals. In this way, different types of random access resources are associated with downlink reference signals respectively, which allows different types of random access resources to be independently associated with downlink reference signals, thereby increasing network configuration and deployment flexibility.

[0238] In some embodiments of the present application, the at least one random access resource corresponds to one or more RACH opportunities (RACH Occasion, RO), or one or more types of ROs. Optionally, one type of RO is called an RO set.

[0239] In other words, the at least one random access resource is included in one or more ROs, or one or more types of ROs. For example, one RO or one type of RO may include one or more random access resources corresponding to terminal capabilities / duplex mode types.

[0240] Therefore, in the embodiment of the present application, different random access resources correspond to the same type of RO, and different types of terminals can be distinguished by random access resources, saving the RO time-frequency resource overhead of network configuration. Different random access resources correspond to different types of RO, which can increase the flexibility of network configuration.

[0241] In some embodiments, the type of the RO includes at least one of the following:

[0242] The RO located on the uplink time domain resource (or the time domain format is UL) is recorded as the first type;

[0243] An RO located on a flexible time domain resource (or having a time domain format of the first format), wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal, is recorded as the second type;

[0244] An RO located on a flexible time domain resource (or, in other words, the time domain format is the first format), wherein the flexible time domain resource includes a time domain resource for a downlink common signal, which is recorded as the third type;

[0245] An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and the interval between the first time domain resource and the time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource, which is recorded as the fourth type.

[0246] Optionally, the second preset value may be predefined or configured by a network-side device.

[0247] In some embodiments, the random access resources (e.g., index or quantity) on multiple different ROs may be the same or different, or the random access resources (e.g., index or quantity) on multiple different types of ROs may be the same or different.

[0248] In some specific embodiments, one or more different random access resources correspond to the same RO or the same type of RO.

[0249] For example, the network-side device may configure at least one random access resource for a specific RO or a specific type of RO, corresponding to at least one terminal capability and / or at least one duplex mode type. Specifically, for RO type 1, at least one random access resource may be configured to correspond to terminals with multiple capabilities, such as full-duplex capable terminals and half-duplex capable terminals.

[0250] Taking preamble resources as an example, the network side device may configure at least one preamble resource corresponding to a specific RO or a specific RO type / RO set, including, for example, a preamble index and the number of preambles.

[0251] For example, for RO type 1, at least one preamble resource is configured, the number is 64, and the indexes are 1 to 64, corresponding to terminals with various capabilities. For example, half-duplex capability terminals correspond to preambles with preamble indexes 1 to 32, and full-duplex capability terminals correspond to preambles with preamble indexes 33 to 64.

[0252] In some other specific embodiments, one or more different random access resources correspond to different ROs or different types of ROs.

[0253] For example, the network-side device can separately configure at least one random access resource based on different ROs or RO types / RO sets, corresponding to at least one terminal capability and / or duplex mode type. For example, for RO type 1, at least one random access resource is configured to correspond to terminals with multiple capabilities, such as full-duplex capable terminals and half-duplex capable terminals; for RO type 2, at least one random access resource is configured to correspond to full-duplex capable terminals.

[0254] Taking preamble resources as an example, the network-side device can separately configure at least one preamble resource, such as a preamble index and the number of preambles, according to different ROs or RO types / RO sets.

[0255] For example, for RO type 1, at least one preamble resource is configured, the number is 64, and the indexes are 1 to 64, corresponding to terminals with various capabilities, such as full-duplex capability terminals corresponding to preambles with preamble indexes of 1 to 32, and half-duplex capability terminals corresponding to preambles with preamble indexes of 33 to 64; for RO type 2, at least one preamble resource is configured, the number is 32, and the indexes are 1 to 32, corresponding to terminals with full-duplex capability.

[0256] In some embodiments, the terminal obtains at least one random access resource corresponding to multiple different ROs or RO types / RO sets configured by a network-side device, where the at least one random access resource corresponds to at least one terminal capability / duplex mode type.

[0257] In some embodiments of the present application, the S220 includes:

[0258] The random access message is sent according to the first configuration information and the RO or RO type corresponding to the at least one random access resource.

[0259] For example, according to the RO or RO type corresponding to the at least one random access resource, determining the target random access resource in the at least one random access resource;

[0260] Sending a random access message according to the target random access resource.

[0261] Exemplarily, if the terminal does not support full-duplex capability, the terminal may select a random access resource on the first type or the second type RO as the target random access resource.

[0262] Exemplarily, if the terminal supports full-duplex capability, the terminal may select a random access resource on any type of RO among the four types mentioned above as the target random access resource.

[0263] In some embodiments, random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with the same downlink reference signal or downlink reference signal set.

[0264] In some other embodiments, random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with independent downlink reference signals or downlink reference signal sets.

[0265] For example, for a terminal with a first terminal capability / supporting a first duplex mode type, random access resources on at least one RO may be numbered. For a terminal with full-duplex capability, random access resources (e.g., indexes or quantities) on multiple different ROs may be the same or different, or random access resources (e.g., indexes or quantities) on multiple different types of ROs may be the same or different.

[0266] Example 1: For RO 1, 64 preamble resources are configured, numbered 1 to 64, corresponding to terminals with different capabilities. Half-duplex terminals correspond to preambles with preamble indexes 1 to 32, and full-duplex terminals correspond to preambles with preamble indexes 33 to 64. For RO 2, 32 preamble resources are configured, with preamble indexes 33 to 64, corresponding to terminals with full-duplex capabilities.

[0267] In this case, for a full-duplex capable terminal, preamble resources corresponding to different ROs can be associated with a downlink reference signal or a downlink reference signal set together, that is, preamble resources corresponding to RO 1 and RO 2 can be associated with a downlink reference signal or a downlink reference signal set together.

[0268] Example 2: For RO 1, 64 preamble resources are configured, with indexes 1 to 64 corresponding to terminals with various capabilities. Half-duplex terminals correspond to preambles with indexes 1 to 32, and full-duplex terminals correspond to preambles with indexes 33 to 64. For RO 2, 32 preamble resources are configured, with indexes 1 to 32 corresponding to terminals with full-duplex capabilities.

[0269] In this case, for full-duplex capable terminals, preamble resources corresponding to different ROs can be associated with downlink reference signals or downlink reference signal sets, that is, preamble resources corresponding to RO 1 and RO 2 are associated with downlink reference signals or downlink reference signal sets, respectively.

[0270] Example 3: For RO 1, 64 preamble resources are configured, with indexes 1 to 64 corresponding to terminals with various capabilities. Half-duplex terminals correspond to preambles with indexes 1 to 32, and full-duplex terminals correspond to preambles with indexes 33 to 64. For RO 2, 64 preamble resources are configured, with indexes 1 to 64 corresponding to terminals with full-duplex capabilities.

[0271] In this case, for a terminal with full-duplex capability, preamble resources corresponding to different ROs are associated with SSBs respectively, that is, preamble resources corresponding to RO 1 and RO 2 are associated with a downlink reference signal or a downlink reference signal set respectively.

[0272] In some embodiments, in the RO, the at least one random access resource is arranged according to at least one of the following:

[0273] Terminal capability or duplex mode type corresponding to random access resources;

[0274] Index information of random access message;

[0275] Type information of random access message;

[0276] Grouping information of random access messages;

[0277] Sequence information of random access messages;

[0278] Number of random access messages.

[0279] For example, the at least one random access resource is arranged according to a preset terminal capability order or a duplex mode type order (eg, full duplex mode first and then half duplex mode).

[0280] For another example, the at least one random access resource is arranged in ascending order according to the index of the random access message.

[0281] In a specific embodiment, in the RO, the at least one random access resource is arranged in the order of terminal capability or duplex mode type first and then index information of the random access message.

[0282] Taking the random access resource as a preamble resource as an example, the preamble resources can be arranged in ascending order of terminal capability / duplex mode type first and preamble index second. As shown in Figure 7, when the preamble resources are arranged according to terminal capability, they are arranged in the order of full duplex mode first and half duplex mode second. For preamble resources corresponding to a terminal capability or duplex mode type, they are arranged in the order of preamble group index, for example, from small to large. Within a preamble group, they are arranged in ascending order of preamble index.

[0283] In another specific embodiment, in the RO, the at least one random access resource is arranged in the order of first the index information of the random access message and then the terminal capability or duplex mode type.

[0284] Taking the random access resource as a preamble resource as an example, the preamble resources can be arranged in ascending order of preamble index and then in order of terminal capability or duplex mode type. As shown in Figure 8, the preamble resources are arranged in ascending order of preamble index and then in order of terminal capability or duplex mode type.

[0285] In some embodiments, the at least one random access resource corresponds to at least one signal quality threshold respectively.

[0286] Optionally, the at least one signal quality threshold includes at least one of the following:

[0287] The signal quality threshold corresponding to the four-step random access, for example, when sending Msg1, select the signal quality threshold used by SSB;

[0288] The signal quality threshold corresponding to two-step random access, for example, when sending MsgA, select the signal quality threshold used by SSB;

[0289] The signal quality threshold corresponding to Random Access Small Data Transmission (RA-SDT), for example, the signal quality threshold for initiating RA-SDT.

[0290] In some embodiments, the signal quality threshold includes but is not limited to at least one of the following:

[0291] Reference Signal Receiving Power (RSRP) threshold, Reference Signal Receiving Quality (RSRQ) threshold, Signal to Interference plus Noise Ratio (SINR) threshold, Received Signal Strength Indication (RSSI) threshold.

[0292] In some embodiments, the network side device can configure corresponding signal quality thresholds for random access resources corresponding to different terminal capabilities and / or duplex mode types, or it can also be understood as configuring corresponding signal quality thresholds for different terminal capabilities and / or duplex mode types.

[0293] Furthermore, the terminal may select a corresponding signal quality threshold according to the capability of the terminal or the type of duplex mode used by the terminal, and select an SSB, for example, selecting an SSB that meets the signal quality threshold.

[0294] In some implementations, the terminal may first select a corresponding random access resource or RO / RO type based on the terminal capability or duplex mode type, and then select an SSB based on the terminal capability or the signal quality threshold corresponding to the random access resource.

[0295] In another implementation, the terminal first selects a corresponding signal quality threshold (possibly one or more) based on the terminal capability or duplex mode type, selects SSB based on the signal quality threshold, and then selects a corresponding random access resource or RO based on the terminal capability or duplex type.

[0296] That is to say, the embodiment of the present application does not limit the order in which the terminal selects the SSB and selects the random access resource.

[0297] In some embodiments, the network side device can configure at least one random access resource group according to the terminal capability and / or duplex mode type, each random access resource group includes at least one random access resource, and each random access resource group corresponds to a terminal capability and / or duplex mode type.

[0298] Exemplarily, the at least one random access resource group includes at least one of the following:

[0299] The first random access resource group corresponds to the full-duplex mode or the terminal capability supporting the full-duplex mode;

[0300] The second random access resource group corresponds to half-duplex mode or terminal capabilities supporting half-duplex mode;

[0301] The third random access resource group corresponds to a fully overlapping full-duplex mode, or a terminal capability supporting the fully overlapping full-duplex mode;

[0302] The fourth random access resource group corresponds to the sub-band non-overlapping full-duplex mode, or the terminal capability of supporting the sub-band non-overlapping full-duplex mode.

[0303] In some embodiments, the network-side device may further configure a random access resource group according to the guard band capability of the terminal, for example, configuring at least one random access resource group related to the guard band capability of the terminal.

[0304] Exemplarily, the at least one random access resource group includes a random access resource group corresponding to a first guard band capability (e.g., a guard band not less than X1) and a random access resource group corresponding to a second guard band capability (a guard band not less than X2), where X1 is less than X2. The units of X1 and X2 can optionally be kHz. Alternatively, more random access resource groups corresponding to guard band capabilities may be included, which is not limited in this application.

[0305] Optionally, random access resources may be grouped according to the terminal's guard band capability and the terminal's duplex capability. For example, the fourth random access resource group may be further divided into the following two random access resource groups:

[0306] Random access resource group 4-1: corresponds to the terminal capability of supporting full-duplex mode with non-overlapping sub-bands and a guard band no less than X1;

[0307] Random access resource group 4-2: corresponds to the terminal capability of supporting non-overlapping sub-band full-duplex mode and a guard band no less than X2.

[0308] In some embodiments, the network side device may further configure the random access resource group according to the transmit power capability of the terminal, for example, configuring at least one random access resource group related to the transmit power capability of the terminal.

[0309] Exemplarily, the at least one random access resource group includes a random access resource group corresponding to a first transmit power capability (e.g., a maximum transmit power not greater than Y1) and a random access resource group corresponding to a second transmit power capability (e.g., a maximum transmit power not greater than Y2), where Y1 is less than Y2. Alternatively, the at least one random access resource group may include random access resource groups corresponding to multiple transmit power capabilities, which is not limited in this application.

[0310] Optionally, random access resources may be grouped according to the transmit power capability and duplex capability of the terminal. For example, the fourth random access resource group may be further divided into the following two random access resource groups:

[0311] Random access resource group 4-3: corresponds to the terminal capability of supporting non-overlapping sub-band full-duplex mode and the maximum transmit power not exceeding Y1;

[0312] Random access resource group 4-4: corresponds to the terminal capability of supporting sub-band non-overlapping full-duplex mode and the maximum transmit power not exceeding Y2.

[0313] In some embodiments, the network-side device may further configure a random access resource group according to the interference suppression capability of the terminal, for example, configuring at least one random access resource group related to the interference suppression capability of the terminal.

[0314] The at least one random access resource group includes a random access resource group corresponding to the first interference suppression capability and a random access resource group corresponding to the second interference suppression capability. Alternatively, the at least one random access resource group may include random access resource groups corresponding to multiple transmit power capabilities, which is not limited in this application.

[0315] In some embodiments, the random access resource group satisfies at least one of the following conditions:

[0316] The random access resource group includes random access resources corresponding to different terminal capabilities or duplex mode types, that is, one random access resource group may include random access resources corresponding to different terminal capabilities or duplex mode types;

[0317] The random access resource group includes random access resources corresponding to the same terminal capability or duplex mode type, that is, a random access resource group can only include random access resources corresponding to the same terminal capability or duplex mode type;

[0318] The random access resource group includes random access resources corresponding to the same type of RACH transmission opportunities, that is, a random access resource group can only include random access resources corresponding to the same RO type;

[0319] The random access resource group includes random access resources corresponding to different types of RACH transmission opportunities, that is, one random access resource group may include random access resources corresponding to different RO types.

[0320] In some embodiments, when the random access message is a preamble, the random access resource group may be a preamble resource group, and the determination of the preamble resource group satisfies one or more of the following conditions:

[0321] The preamble resource group may include preamble resources corresponding to different terminal capabilities and / or duplex mode types;

[0322] The preamble resource group must include preamble resources corresponding to the same terminal capabilities and / or duplex mode types;

[0323] The preamble resource group needs to be associated with the same type of RACH transmission opportunity;

[0324] Preamble resource groups can be associated with different types of RACH transmission opportunities;

[0325] The preamble resource group may correspond to different payload sizes of random access messages, and the random access message may be, for example, MsgA or Msg3.

[0326] Optionally, different payload sizes of random access messages correspond to different preamble resources, and the terminal may select a suitable preamble resource to send the preamble according to the payload size of the MsgA or Msg3 to be sent.

[0327] In some embodiments, a preamble resource group corresponding to a given payload size may be configured with a corresponding threshold value for selecting the preamble resource group, such as payload size, data volume, priority, and the like.

[0328] In some embodiments, the network device can configure at least one preamble resource in a certain type of RACH transmission opportunity, corresponding to different random access message payload sizes. In another type of RACH transmission opportunity, different preamble resources can also be configured to correspond to different data sizes. The preamble resources in different types of RACH transmission opportunities can have different random access message payload thresholds. That is, the terminal can select a specific preamble resource in different types of RACH transmission opportunities based on a specific random access message payload threshold.

[0329] In some embodiments, the network side device can configure thresholds (such as RSRP, etc.) corresponding to different RACH transmission opportunity types. For example, the network side device configuration adopts which of the following methods:

[0330] Select the RACH transmission opportunity type based on the random access message payload size;

[0331] The RACH transmission opportunity type is selected according to the threshold corresponding to the RACH transmission opportunity type.

[0332] In other embodiments, the network device may configure at least one preamble resource in multiple different types of RACH transmission opportunities, each corresponding to a different random access message payload size. Different preamble resources in the same type of RACH transmission opportunity may have different random access message payload thresholds. Preamble resources in different types of RACH transmission opportunities may have the same random access message payload threshold. That is, the terminal may select a preamble resource in different types of RACH transmission opportunities based on a common random access message payload threshold.

[0333] In summary, in an embodiment of the present application, the network side device can configure at least one random access resource for the terminal, and the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type. The terminal can select a suitable random access resource to initiate random access based on its own capability or duplex mode type, which is conducive to improving random access performance.

[0334] The above text, in combination with Figures 6 to 8, describes in detail the method embodiment of the present application. The following text, in combination with Figures 9 to 13, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.

[0335] The wireless communication method provided in the embodiment of the present application can be executed by a wireless communication device. In the embodiment of the present application, the wireless communication device provided in the embodiment of the present application is described by taking the wireless communication method executed by the wireless communication device as an example.

[0336] FIG9 shows a schematic block diagram of a wireless communication device 500 according to an embodiment of the present application. As shown in FIG9 , the device 500 includes:

[0337] A receiving unit 510 is configured to receive first configuration information, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type;

[0338] The sending unit 520 is configured to send a random access message according to the first configuration information.

[0339] In some embodiments, the apparatus 500 further includes:

[0340] a processing unit, configured to determine a target random access resource from the at least one random access resource according to the first configuration information and a capability of the terminal;

[0341] The sending unit 520 is further configured to send a random access message according to the target random access resource.

[0342] In some embodiments, the random access resource includes at least one of the following:

[0343] Index information of random access message;

[0344] Type information of random access message;

[0345] Grouping information of random access messages;

[0346] Sequence information of random access messages;

[0347] Number of random access messages.

[0348] In some embodiments, in a random access channel RACH transmission opportunity RO, the at least one random access resource is arranged according to at least one of the following:

[0349] Terminal capability or duplex mode type corresponding to random access resources;

[0350] Index information of random access message;

[0351] Type information of random access message;

[0352] Grouping information of random access messages;

[0353] Sequence information of random access messages;

[0354] Number of random access messages.

[0355] In some embodiments, the at least one random access resource is associated with a downlink reference signal or a downlink reference signal set.

[0356] In some embodiments, the at least one random access resource is associated with the same downlink reference signal or downlink reference signal set; or

[0357] The at least one random access resource is associated with an independent downlink reference signal or a downlink reference signal set.

[0358] In some embodiments, the terminal capabilities include at least one of the following:

[0359] duplex capability of the terminal;

[0360] In full-duplex mode, the guard band capability of the terminal;

[0361] The transmit power capability of the terminal in full-duplex mode;

[0362] The interference suppression capability of the terminal in full-duplex mode.

[0363] In some embodiments, the duplex capability of the terminal includes at least one of the following:

[0364] Whether the terminal supports full-duplex mode;

[0365] Whether the terminal supports signal reception on a downlink subband of an uplink time unit;

[0366] Whether the terminal supports signal transmission on the uplink subband of the downlink time unit.

[0367] In some embodiments, the at least one duplex mode type includes at least one of the following:

[0368] Fully overlapped full-duplex mode;

[0369] Sub-band non-overlapping full-duplex mode;

[0370] Half-duplex mode;

[0371] a first duplex mode, wherein, in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit;

[0372] A second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

[0373] In some embodiments, the resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following:

[0374] A first resource type, where the first resource type is used to indicate a time domain resource whose time domain format is uplink;

[0375] A second resource type, where the second resource type is used to indicate that the time domain format is the first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal;

[0376] a third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal;

[0377] a fourth resource type, where the fourth resource type is used to indicate a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value;

[0378] The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

[0379] In some embodiments, the at least one random access resource corresponds to one or more ROs, or one or more types of ROs.

[0380] In some embodiments, one or more different random access resources correspond to the same RO or the same type of RO; or

[0381] One or more different random access resources correspond to different ROs or different types of ROs.

[0382] In some embodiments, random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with the same downlink reference signal or downlink reference signal set, or,

[0383] The random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with independent downlink reference signals or a downlink reference signal set.

[0384] In some embodiments, the type of the RO includes at least one of the following:

[0385] RO located on uplink time domain resources;

[0386] An RO located on a flexible time domain resource, wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal;

[0387] An RO located on a flexible time domain resource, wherein the flexible time domain resource includes a time domain resource for a downlink common signal;

[0388] An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and the interval between the first time domain resource and the time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource.

[0389] In some embodiments, the sending unit 520 is further configured to:

[0390] The random access message is sent according to the first configuration information and the RO or RO type corresponding to the at least one random access resource.

[0391] In some embodiments, the at least one random access resource corresponds to at least one signal quality threshold respectively.

[0392] In some embodiments, the at least one signal quality threshold comprises at least one of the following:

[0393] Signal quality threshold corresponding to four-step random access;

[0394] Signal quality threshold corresponding to two-step random access;

[0395] Signal quality threshold corresponding to random access small data transmission RA-SDT.

[0396] In some embodiments, the at least one random access resource belongs to at least one random access resource group, each random access resource group corresponding to at least one terminal capability or at least one duplex mode type.

[0397] In some embodiments, the random access message includes at least one of the following:

[0398] Preamble, message 1 in the four-step random access process, message 3 in the four-step random access process, and message A in the two-step random access process.

[0399] 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.

[0400] It should be understood that the device 800 according to the embodiment of the present application may correspond to the terminal in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the device 500 are respectively for realizing the corresponding processes of the terminal in the method embodiment shown in Figures 6 to 8 and achieving the same technical effects. To avoid repetition, they will not be repeated here.

[0401] FIG10 shows a schematic block diagram of a wireless communication device 600 according to an embodiment of the present application. As shown in FIG10 , the device 600 includes:

[0402] A sending unit 610 is configured to send first configuration information to a terminal, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type;

[0403] The receiving unit 620 is configured to receive a random access message according to the first configuration information.

[0404] In some embodiments, the apparatus 600 further includes:

[0405] The processing unit is configured to determine the capability or duplex mode type of the terminal according to the random access resource of the received random access message.

[0406] In some embodiments, the processing unit is further configured to:

[0407] The terminal is configured according to the capability or duplex mode type of the terminal, for example, transmission resources corresponding to subsequent uplink transmissions during the random access process are configured.

[0408] In some embodiments, the random access resource includes at least one of the following:

[0409] Index information of random access message;

[0410] Type information of random access message;

[0411] Grouping information of random access messages;

[0412] Sequence information of random access messages;

[0413] Number of random access messages.

[0414] In some embodiments, in a random access channel RACH transmission opportunity RO, the at least one random access resource is arranged according to at least one of the following:

[0415] Terminal capability or duplex mode type corresponding to random access resources;

[0416] Index information of random access message;

[0417] Type information of random access message;

[0418] Grouping information of random access messages;

[0419] Sequence information of random access messages;

[0420] Number of random access messages.

[0421] In some embodiments, the at least one random access resource is associated with a downlink reference signal or a downlink reference signal set.

[0422] In some embodiments, the at least one random access resource is associated with the same downlink reference signal or downlink reference signal set; or

[0423] The at least one random access resource is associated with an independent downlink reference signal or a downlink reference signal set.

[0424] In some embodiments, the terminal capabilities include at least one of the following:

[0425] duplex capability of the terminal;

[0426] In full-duplex mode, the guard band capability of the terminal;

[0427] The transmit power capability of the terminal in full-duplex mode;

[0428] The interference suppression capability of the terminal in full-duplex mode.

[0429] In some embodiments, the duplex capability of the terminal includes at least one of the following:

[0430] Whether the terminal supports full-duplex mode;

[0431] Whether the terminal supports signal reception on a downlink subband of an uplink time unit;

[0432] Whether the terminal supports signal transmission on the uplink subband of the downlink time unit.

[0433] In some embodiments, the at least one duplex mode type includes at least one of the following:

[0434] Fully overlapped full-duplex mode;

[0435] Sub-band non-overlapping full-duplex mode;

[0436] Half-duplex mode;

[0437] a first duplex mode, wherein, in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit;

[0438] A second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

[0439] In some embodiments, the resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following:

[0440] A first resource type, where the first resource type is used to indicate a time domain resource whose time domain format is uplink;

[0441] A second resource type, where the second resource type is used to indicate that the time domain format is the first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal;

[0442] a third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal;

[0443] a fourth resource type, where the fourth resource type is used to indicate a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value;

[0444] The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

[0445] In some embodiments, the at least one random access resource corresponds to one or more ROs, or one or more types of ROs.

[0446] In some embodiments, one or more different random access resources correspond to the same RO or the same type of RO; or

[0447] One or more different random access resources correspond to different ROs or different types of ROs.

[0448] In some embodiments, random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with the same downlink reference signal or downlink reference signal set, or,

[0449] The random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with independent downlink reference signals or a downlink reference signal set.

[0450] In some embodiments, the type of the RO includes at least one of the following:

[0451] RO located on uplink time domain resources;

[0452] An RO located on a flexible time domain resource, wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal;

[0453] An RO located on a flexible time domain resource, wherein the flexible time domain resource includes a time domain resource for a downlink common signal;

[0454] An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and the interval between the first time domain resource and the time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource.

[0455] In some embodiments, the at least one random access resource corresponds to at least one signal quality threshold respectively.

[0456] In some embodiments, the at least one signal quality threshold comprises at least one of the following:

[0457] Signal quality threshold corresponding to four-step random access;

[0458] Signal quality threshold corresponding to two-step random access;

[0459] Signal quality threshold corresponding to random access small data transmission RA-SDT.

[0460] In some embodiments, the at least one random access resource belongs to at least one random access resource group, each random access resource group corresponding to at least one terminal capability or at least one duplex mode type.

[0461] In some embodiments, the random access message includes at least one of the following:

[0462] Preamble, message 1 in the four-step random access process, message 3 in the four-step random access process, and message A in the two-step random access process.

[0463] 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.

[0464] It should be understood that the device 600 according to the embodiment of the present application may correspond to the network side device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the device 600 are respectively for realizing the corresponding processes of the network side device in the method embodiment shown in Figures 6 to 8 and achieving the same technical effects. To avoid repetition, they will not be repeated here.

[0465] In some embodiments, the apparatus 500 and apparatus 600 in the embodiments of the present application may be electronic devices, such as electronic devices with an operating system, or components in electronic devices, such as integrated circuits or chips. The electronic device may be a terminal or other device other than a terminal. For example, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0466] As shown in Figure 11, an embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002. The memory 1002 stores a program or instruction that can be run on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instruction, when executed by the processor 1001, implements the steps performed by the terminal in the above-mentioned wireless communication method embodiment, and can achieve the same technical effect. For example, when the communication device 1000 is a network-side device, the program or instruction, when executed by the processor 1001, implements the steps performed by the network-side device in the above-mentioned wireless communication method embodiment, and can achieve the same technical effect.

[0467] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps in the method embodiments shown in Figures 6 to 8. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment can be applied to this terminal embodiment and achieve the same technical effects. Specifically, Figure 12 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0468] The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of the processor 1110.

[0469] Those skilled in the art will appreciate that the terminal 1100 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1110 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG12 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0470] It should be understood that in an embodiment of the present application, the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0471] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1101 may transmit the data to the processor 1110 for processing. Furthermore, the RF unit 1101 may send uplink data to the network-side device. Typically, the RF unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0472] The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may 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 may be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0473] Processor 1110 may include one or more processing units. Optionally, processor 1110 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1110.

[0474] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiments shown in Figures 6 to 8, and achieve the same or corresponding technical effects. To avoid repetition, they will not be repeated here.

[0475] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiments shown in Figures 6 to 8. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment can be applied to this network-side device embodiment and can achieve the same technical effects.

[0476] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 13, the network-side device 1200 includes an antenna 1201, a radio frequency device 1202, a baseband device 1203, a processor 1204, and a memory 1205. Antenna 1201 is connected to radio frequency device 1202. In the uplink direction, radio frequency device 1202 receives information via antenna 1201 and sends the received information to baseband device 1203 for processing. In the downlink direction, baseband device 1203 processes the information to be transmitted and sends it to radio frequency device 1202. Radio frequency device 1202 processes the received information and then sends it through antenna 1201.

[0477] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1203 , which includes a baseband processor.

[0478] The baseband device 1203 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 120, one of which is, for example, a baseband processor, which is connected to the memory 1205 through a bus interface to call the program in the memory 1205 and execute the network device operations shown in the above method embodiment.

[0479] The network side device may further include a network interface 1206 , which is, for example, a Common Public Radio Interface (CPRI).

[0480] Specifically, the network side device 1200 of the embodiment of the present application also includes: instructions or programs stored in the memory 1205 and executable on the processor 1204. The processor 1204 calls the instructions or programs in the memory 1205 to execute the method of execution of each module shown in Figure 16 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0481] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned wireless communication method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0482] The processor is a processor in the wireless communication device, communication equipment, terminal, or network-side device described in the above embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0483] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned wireless communication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0484] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0485] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned wireless communication method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0486] An embodiment of the present application further provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the wireless communication method described above, and the network-side device can be used to execute the steps of the wireless communication method described above.

[0487] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0488] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0489] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A wireless communication method, wherein: include: The terminal receives first configuration information, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type; Send a random access message according to the first configuration information.

2. The method according to claim 1, wherein: The sending a random access message according to the first configuration information includes: determining, according to the first configuration information and the capability of the terminal, a target random access resource in the at least one random access resource; A random access message is sent according to the target random access resource.

3. The method according to claim 1 or 2, wherein: The random access resource includes at least one of the following: Index information of random access message; Type information of random access message; Grouping information of random access messages; Sequence information of random access messages; Number of random access messages.

4. The method according to any one of claims 1 to 3, wherein: In a random access channel RACH transmission opportunity RO, the at least one random access resource is arranged according to at least one of the following: The terminal capability or duplex mode type corresponding to the random access resource; Index information of random access message; Type information of random access message; Grouping information of random access messages; Sequence information of random access messages; Number of random access messages.

5. The method according to any one of claims 1 to 4, wherein: The at least one random access resource is associated with a downlink reference signal or a downlink reference signal set.

6. The method according to claim 5, wherein: The at least one random access resource is associated with the same downlink reference signal or downlink reference signal set; or The at least one random access resource is associated with an independent downlink reference signal or a downlink reference signal set.

7. The method according to any one of claims 1 to 6, wherein: The terminal capability includes at least one of the following: duplex capability of the terminal; In full-duplex mode, the guard band capability of the terminal; In full-duplex mode, the transmit power capability of the terminal; The interference suppression capability of the terminal in full-duplex mode.

8. The method according to claim 7, wherein: The duplex capability of the terminal includes at least one of the following: Whether the terminal supports full-duplex mode; Whether the terminal supports signal reception on a downlink subband of an uplink time unit; Whether the terminal supports signal transmission on the uplink subband of the downlink time unit.

9. The method according to any one of claims 1 to 8, wherein: The at least one duplex mode type includes at least one of the following: Fully overlapped full-duplex mode; Sub-band non-overlapping full-duplex mode; Half-duplex mode; A first duplex mode, wherein in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit; The second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

10. The method according to any one of claims 1 to 8, wherein: The resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following: A first resource type, where the first resource type is used to indicate that the time domain format is an uplink time domain resource; A second resource type, where the second resource type is used to indicate that the time domain format is a first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal; A third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal; A fourth resource type, wherein the fourth resource type is used to indicate that a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value; The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

11. The method according to any one of claims 1 to 10, wherein: The at least one random access resource corresponds to one or more ROs, or one or more types of ROs.

12. The method according to claim 11, wherein: One or more different random access resources correspond to the same RO or the same type of RO; or One or more different random access resources correspond to different ROs or different types of ROs.

13. The method according to claim 11 or 12, wherein: The random access resources corresponding to multiple different ROs or multiple different types of ROs are associated with the same downlink reference signal or downlink reference signal set, or, The random access resources corresponding to a plurality of different ROs or a plurality of different types of ROs are associated with an independent downlink reference signal or a downlink reference signal set.

14. The method according to any one of claims 11 to 13, wherein: The type of RO includes at least one of the following: RO located on uplink time domain resources; An RO located on a flexible time domain resource, wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal; An RO located on a flexible time domain resource, wherein the flexible time domain resource includes a time domain resource for a downlink common signal; An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and an interval between the first time domain resource and a time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource.

15. The method according to any one of claims 11 to 14, wherein: The sending a random access message according to the first configuration information includes: The random access message is sent according to the first configuration information and the RO or RO type corresponding to the at least one random access resource.

16. The method according to any one of claims 1 to 15, wherein: The at least one random access resource corresponds to at least one signal quality threshold respectively.

17. The method according to claim 16, wherein: The at least one signal quality threshold comprises at least one of the following: Signal quality threshold corresponding to four-step random access; Signal quality threshold corresponding to two-step random access; The signal quality threshold corresponding to the random access small data transmission RA-SDT.

18. The method according to any one of claims 1 to 17, wherein: The at least one random access resource belongs to at least one random access resource group, and each random access resource group corresponds to at least one terminal capability or at least one duplex mode type.

19. The method according to any one of claims 1 to 18, wherein: The random access message includes at least one of the following: Preamble, message 1 in the four-step random access process, message 3 in the four-step random access process, and message A in the two-step random access process.

20. A wireless communication method, wherein: include: The network side device sends first configuration information to the terminal, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type; A random access message is received according to the first configuration information.

21. The method according to claim 20, wherein: The terminal capability includes at least one of the following: duplex capability of the terminal; In full-duplex mode, the guard band capability of the terminal; In full-duplex mode, the transmit power capability of the terminal; The interference suppression capability of the terminal in full-duplex mode.

22. The method according to claim 21, wherein: The duplex capability of the terminal includes at least one of the following: Whether the terminal supports full-duplex mode; Whether the terminal supports signal reception on a downlink subband of an uplink time unit; Whether the terminal supports signal transmission on the uplink subband of the downlink time unit.

23. The method according to any one of claims 20 to 22, wherein: The at least one duplex mode type includes at least one of the following: Fully overlapped full-duplex mode; Sub-band non-overlapping full-duplex mode; Half-duplex mode; A first duplex mode, wherein in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit; The second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

24. The method according to any one of claims 20 to 23, wherein: The at least one random access resource is associated with a downlink reference signal or a downlink reference signal set.

25. The method according to any one of claims 20 to 24, wherein: The resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following: A first resource type, where the first resource type is used to indicate that the time domain format is an uplink time domain resource; A second resource type, where the second resource type is used to indicate that the time domain format is a first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal; A third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal; A fourth resource type, wherein the fourth resource type is used to indicate that a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value; The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

26. The method according to any one of claims 20 to 25, wherein: The at least one random access resource corresponds to one or more ROs, or one or more types of ROs.

27. The method according to claim 26, wherein: The type of RO includes at least one of the following: RO located on uplink time domain resources; An RO located on a flexible time domain resource, wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal; An RO located on a flexible time domain resource, wherein the flexible time domain resource includes a time domain resource for a downlink common signal; An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and an interval between the first time domain resource and a time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource.

28. A wireless communication device, wherein: include: A receiving unit, configured to receive first configuration information, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type; A sending unit is used to send a random access message according to the first configuration information.

29. The device according to claim 28, wherein The terminal capability includes at least one of the following: duplex capability of the terminal; In full-duplex mode, the guard band capability of the terminal; In full-duplex mode, the transmit power capability of the terminal; The interference suppression capability of the terminal in full-duplex mode.

30. The device according to claim 29, wherein: The duplex capability of the terminal includes at least one of the following: Whether the terminal supports full-duplex mode; Whether the terminal supports signal reception on a downlink subband of an uplink time unit; Whether the terminal supports signal transmission on the uplink subband of the downlink time unit.

31. The device according to any one of claims 28 to 30, wherein: The at least one duplex mode type includes at least one of the following: Fully overlapped full-duplex mode; Sub-band non-overlapping full-duplex mode; Half-duplex mode; A first duplex mode, wherein in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit; The second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

32. The device according to any one of claims 28 to 31, wherein: The at least one random access resource is associated with a downlink reference signal or a downlink reference signal set.

33. The device according to any one of claims 28 to 32, wherein: The resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following: A first resource type, where the first resource type is used to indicate that the time domain format is an uplink time domain resource; A second resource type, where the second resource type is used to indicate that the time domain format is a first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal; A third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal; A fourth resource type, wherein the fourth resource type is used to indicate that a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value; The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

34. The device according to any one of claims 28 to 33, wherein: The at least one random access resource corresponds to one or more ROs, or one or more types of ROs.

35. The device according to claim 34, wherein The type of RO includes at least one of the following: RO located on uplink time domain resources; An RO located on a flexible time domain resource, wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal; An RO located on a flexible time domain resource, wherein the flexible time domain resource includes a time domain resource for a downlink common signal; An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and an interval between the first time domain resource and a time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource.

36. A wireless communication device, wherein: include: A sending unit, configured to send first configuration information to a terminal, where the first configuration information is used to indicate at least one random access resource, where the at least one random access resource corresponds to at least one terminal capability or at least one duplex mode type; A receiving unit is used to receive a random access message according to the first configuration information.

37. The device according to claim 36, wherein The terminal capability includes at least one of the following: duplex capability of the terminal; In full-duplex mode, the guard band capability of the terminal; In full-duplex mode, the transmit power capability of the terminal; The interference suppression capability of the terminal in full-duplex mode.

38. The device according to claim 37, wherein The duplex capability of the terminal includes at least one of the following: Whether the terminal supports full-duplex mode; Whether the terminal supports signal reception on a downlink subband of an uplink time unit; Whether the terminal supports signal transmission on the uplink subband of the downlink time unit.

39. The device according to any one of claims 36 to 38, wherein: The at least one duplex mode type includes at least one of the following: Fully overlapped full-duplex mode; Sub-band non-overlapping full-duplex mode; Half-duplex mode; A first duplex mode, wherein in the first duplex mode, the terminal supports signal reception on a downlink subband of an uplink time unit; The second duplex mode, wherein in the second duplex mode, the terminal supports signal transmission on an uplink subband of a downlink time unit.

40. The device according to any one of claims 36 to 39, wherein: The at least one random access resource is associated with a downlink reference signal or a downlink reference signal set.

41. The device according to any one of claims 36 to 40, wherein: The resource type corresponding to the time domain resource where the at least one random access resource is located includes at least one of the following: A first resource type, where the first resource type is used to indicate that the time domain format is an uplink time domain resource; A second resource type, where the second resource type is used to indicate that the time domain format is a first format and does not include time domain resources of a downlink common signal or a downlink broadcast signal; A third resource type, where the third resource type is used to indicate that the time domain format is the first format and includes time domain resources of a downlink common signal or a downlink broadcast signal; A fourth resource type, wherein the fourth resource type is used to indicate that a time domain resource whose time domain format is an uplink or first format, and an interval between the time domain resource and a time domain resource of a reference signal exceeds a first preset value; The first format is a time domain format for full-duplex transmission, and the frequency domain resources corresponding to the time domain resources of the first format include an uplink sub-band and a downlink sub-band.

42. The device according to any one of claims 36 to 41, wherein: The at least one random access resource corresponds to one or more ROs, or one or more types of ROs.

43. The device according to claim 42, wherein: The type of RO includes at least one of the following: RO located on uplink time domain resources; An RO located on a flexible time domain resource, wherein the flexible time domain resource does not include a time domain resource used for a downlink common signal; An RO located on a flexible time domain resource, wherein the flexible time domain resource includes a time domain resource for a downlink common signal; An RO located on a first time domain resource, wherein the first time domain resource includes a time domain resource for a downlink common signal, and an interval between the first time domain resource and a time domain resource of a reference signal exceeds a second preset value, and the first time domain resource is an uplink time domain resource or a flexible time domain resource.

44. A terminal, wherein: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the method according to any one of claims 1 to 19 when executed by the processor.

45. A network side device, wherein: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the method according to any one of claims 20 to 27 when executed by the processor.

46. ​​A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the wireless communication method according to any one of claims 1 to 19, or implements the steps of the wireless communication method according to any one of claims 20 to 27.

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