Resource type determination method and device and related product
The terminal obtains and analyzes the downlink channel information related to the random access response message, accurately determines the random access resource type, and solves the problem of sending failure caused by the terminal's failure to determine the attributes of the response message during the RACH process, and improves the success rate of RACH.
Patent Information
- Application Number
- CN202311838873.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-07-01
AI Technical Summary
When the terminal performs random access (RACH), it is unable to accurately determine whether the random access response message is for itself, resulting in the failure of the random access message to send, thereby reducing the success rate of RACH.
The first information including the first downlink channel information, the second downlink channel information and the information carried by the random access response message is obtained through the terminal, and the random access resource type corresponding to the random access response message is determined based on the information.
Accurately determine the random access resource type, avoid sending random access messages on PRACH resources that do not support resource types, reduce the number of RACH failures, and improve the RACH success rate.
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Figure CN120239096A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of communication technologies, and particularly relates to a method and apparatus for determining a resource type, and related products. Background Art
[0002] Currently, any terminal can select a physical random access channel (PRACH) resource of a random access resource type to send a random access message to a network-side device to initiate a random access (RACH), and receive a random access response message corresponding to the random access message from the network-side device. Thus, when the random access response message is a message corresponding to this terminal, another random access message can be sent on the PRACH resource corresponding to the random access response message to continue the RACH.
[0003] However, since it may occur that any terminal cannot determine whether the above random access response message is a message corresponding to this terminal, resulting in the random access response message not being a message corresponding to the terminal, and the terminal still sends another random access message on the PRACH resource corresponding to the random access response message. Consequently, the sending of the another random access message fails, and the success rate of the terminal performing RACH is relatively low. Summary of the Invention
[0004] Embodiments of this application provide a method and apparatus for determining a resource type, and related products, which can solve the problem of relatively low success rate of a terminal performing RACH.
[0005] In a first aspect, a method for determining a resource type is provided, which is executed by a terminal. The method includes: the terminal obtains first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message, the first downlink channel being a downlink channel corresponding to the random access response message, and the second downlink channel being a downlink channel other than the first downlink channel; the terminal determines a first random access resource type corresponding to the random access response message according to the first information.
[0006] Second aspect, a resource type determination method is provided, which is executed by a network-side device. The method includes: the network-side device indicates at least one first piece of information to at least one terminal, and one first piece of information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; wherein, each first piece of information is used to determine a first random access resource type corresponding to a random access response message.
[0007] Third aspect, a resource type determination apparatus is provided. The resource type determination apparatus includes: an acquisition module, configured to acquire first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel. A processing module, configured to determine a first random access resource type corresponding to a random access response message according to the first information acquired by the acquisition module.
[0008] Fourth aspect, a resource type determination apparatus is provided. The resource type determination apparatus includes: an indication module, configured to indicate at least one first piece of information to at least one terminal, and one first piece of information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; wherein, each first piece of information is used to determine a first random access resource type corresponding to a random access response message.
[0009] Fifth aspect, a terminal is provided. The terminal includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.
[0010] Sixth aspect, a terminal is provided, including a processor and a communication interface. The processor is configured to acquire first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; and determine a first random access resource type corresponding to a random access response message according to the first information.
[0011] In a seventh aspect, a network-side device is provided. The network-side device includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.
[0012] In an eighth aspect, a network-side device is provided, including a processor and a communication interface. The communication interface is configured to indicate at least one first piece of information to at least one terminal. One first piece of information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, and information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel. Each first piece of information is used to determine a first random access resource type corresponding to a random access response message.
[0013] In a ninth aspect, a readable storage medium is provided. A program or instructions are stored on the readable storage medium. When the program or instructions are 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.
[0014] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network-side device. 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.
[0015] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
[0016] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
[0017] In an embodiment of the present application, a terminal may obtain first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, and information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel. Then, based on the first information, the terminal determines a first random access resource type corresponding to the random access response message. Since the terminal can obtain the first information including at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, and accurately determine the first random access resource type corresponding to the random access response message based on at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, the terminal can accurately determine that the random access response message does not correspond to this terminal when the first random access resource type is not supported, and will not send a random access message on the PRACH resource corresponding to the random access response message. Therefore, it is possible to avoid the failure of sending the random access message due to the terminal being unable to send a message on the PRACH resource, thereby reducing the number of failures of the terminal to perform RACH, and further improving the success rate of the terminal to perform RACH. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1a FIG. 6 is one of the time-frequency domain relationship diagrams of a terminal transmitting in a full-duplex mode in the related art;
[0019] Figure 1b FIG. 7 is another time-frequency domain relationship diagram of a terminal transmitting in a full-duplex mode in the related art;
[0020] Figure 2 FIG. 8 is a block diagram of a wireless communication system provided by an embodiment of the present application;
[0021] Figure 3 FIG. 9 is a flowchart of a resource type determination method provided by an embodiment of the present application;
[0022] Figure 4 FIG. 10 is a flowchart of a resource type determination method provided by an embodiment of the present application;
[0023] Figure 5 FIG. 11 is a flowchart of a resource type determination method provided by an embodiment of the present application;
[0024] Figure 6 FIG. 12 is a flowchart of a resource type determination method provided by an embodiment of the present application;
[0025] Figure 7It is one of the schematic structural diagrams of the resource type determination device provided by the embodiments of the present application;
[0026] Figure 8 It is the second of the schematic structural diagrams of the resource type determination device provided by the embodiments of the present application;
[0027] Figure 9 It is the schematic hardware structure diagram of the communication device provided by the embodiments of the present application;
[0028] Figure 10 It is the schematic hardware structure diagram of the terminal provided by the embodiments of the present application;
[0029] Figure 11 It is the schematic hardware structure diagram of the network-side device provided by the embodiments of the present application. Detailed implementation manners
[0030] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.
[0031] The following will explain the terms related to the embodiments of the present application.
[0032] 1. Full Duplex mode
[0033] In the 5th Generation Mobile Communication Technology (5G) mobile communication system, in order to adapt to diverse scenarios and service requirements, enhanced technologies have been made for the Full Duplex mode. The main scenarios of 5G include enhanced Mobile Broadband (eMBB), Ultra Reliable and Low Latency Communication (URLLC), and Massive Machine Type Communication. These scenarios pose requirements such as high reliability, low latency, large bandwidth, and wide coverage on the system. In the 5G mobile communication system, configuring the Full Duplex mode can significantly improve the latency and coverage performance of the Time Division Duplexing (TDD) system.
[0034] Generally, the Full Duplex mode may include: the subbands non - overlapping Full duplex mode, which can improve the transmission delay and enhance the coverage.
[0035] For a downlink (DL) slot (configured by tdd - UL - DL - ConfigurationCommon or tdd - UL - DL - ConfigurationDedicated), the network - side device configures the downlink (DL) bandwidth part (BWP) for the terminal. For an uplink (UL) slot, the network - side device configures the UL BWP for the terminal.
[0036] For the Full Duplex mode, there are the following cases:
[0037] Case 1: Configure the DL BWP, such as Figure 1a slot 1 in
[0038] Case 2: Configure the DL BWP and the UL sub - band, such as Figure 1a slot 2 in
[0039] For a UL slot:
[0040] Case 3: Configure the UL BWP, such as Figure 1b slot 4 in
[0041] Case 4: Configure the UL BWP and the DL sub - band, such as Figure 1b slot 5 in
[0042] For the SubBandFull Duplex (SBFD) operation, an SBFD sub - band is composed of 1 resource block (RB) or a continuous set of RBs with the same transmission direction. The time unit (such as a slot or a symbol) used by the network - side device for the SBFD operation can be called the SBFD time unit (such as a slot or a symbol).
[0043] For protocol Rel - 15, the network - side device and the terminal can only transmit or receive at one time. For the network - side device full - duplex of Rel - 18, the network - side device can transmit and receive simultaneously, while the terminal side can only adopt the half - duplex mode, that is, it can only transmit or receive at one time.
[0044] For full duplex on the terminal side, the network-side device and the terminal can transmit and receive simultaneously. For full duplex on the terminal side, a relatively large guard band (greater than the guard band in the full duplex mode of the network-side device) may be required to suppress self-interference.
[0045] For a communication device, simultaneous UL reception and DL transmission will cause self-interference. To ensure the transmission in the interfered direction, the communication device needs to have the ability to cancel self-interference. For example, a guard band is reserved between the receiving frequency band and the transmitting frequency band, but this will reduce the throughput of the terminal. In 5G and future 6G systems, both network-side devices and terminals may adopt the full duplex mode.
[0046] 2. RACH Procedure
[0047] In the related art, the RACH procedure can be a contention-based RACH procedure or a non-contention-based RACH procedure. The RACH procedure can be a four-step RACH procedure (also called Type-1 RACH procedure) or a two-step RACH (also called Type-2 RACH procedure).
[0048] In the contention-based 4-step RACH, the terminal first sends a message Msg1 to the network-side device, which contains a preamble; after the network-side device detects the preamble, it will send a random access response message (such as Msg 2), which contains the number of the preamble detected by the network-side device and the uplink radio resources allocated to the terminal to send Msg3; after the terminal receives Msg2, if it confirms that at least one of the preamble numbers carried in Msg2 is the same as the preamble number it sent, it will send Msg3 containing contention resolution information according to the resources indicated by the random access response message; after the network-side device receives Msg3, it will send Msg4 containing contention resolution information; after the terminal receives the random access response message (such as Msg4), if it confirms that the contention resolution information is the same as what it sent in Msg3, the 4-step RACH is completed.
[0049] The network-side device includes uplink grant (UL grant) information in the random access response message to indicate the scheduling information of the Msg3 Physical Uplink Shared Channel (PUSCH), and also includes information such as the Random Access Channel preamble sequence identifier (RACHpreambleID, RAPID), Temporary Cell Radio Network Temporary Identifier (TC-RNTI), and Timing Advance (TA). If the network-side device does not receive the Msg3 PUSCH, it can schedule the retransmission of the Msg3 PUSCH in the Physical Downlink Control Channel (PDCCH) scrambled with the TC-RNTI.
[0050] For the contention-based random access procedure, different terminals randomly select preambles for transmission. In this way, different terminals may select the same preamble to send on the same time-frequency radio resources. This situation can be understood as the preamble collision of the terminals. In this case, different terminals will receive the same random access response message. Then, different terminals will perform the transmission of the Msg 3 PUSCH according to the scheduling information in the UL grant of this random access response message. Since the related technology does not support the repeated transmission of the Msg 3 PUSCH, the network-side device can only decode the PUSCH (including the contention resolution information) sent by one terminal on a Msg 3 PUSCH scheduling resource. Therefore, the network-side device will include the contention resolution information received in Msg 3 in Msg 4. If the contention resolution information in the Msg 4 received by the terminal matches the contention resolution information sent by the terminal in the Msg 3 PUSCH, the terminal considers the contention resolution to be successful. If not, it is considered that the contention resolution is unsuccessful.
[0051] If the contention resolution is unsuccessful, the terminal reselects the RACH transmission resource to perform the transmission of the Physical Random Access Channel (PRACH) and makes the next random access attempt.
[0052] In NR Rel-16, the two-step random access procedure (2-step RACH) is introduced. In the first step, the terminal sends MsgA to the network device. After receiving MsgA, the network device sends MsgB to the terminal. If the terminal does not receive MsgB within a certain time, the terminal will increment the counter that counts the number of MsgA transmissions and resend MsgA. If the counter that counts the number of MsgA transmissions reaches a certain threshold, the terminal will switch from the 2-step RACH procedure to the 4-step RACH procedure.
[0053] Among them, MsgA includes a MsgA preamble part and a MsgA PUSCH part. The preamble part is sent on the uplink radio resources for 2-step RACH, and the PUSCH part is sent on the MsgA PUSCH resources associated with the MsgA preamble and the uplink radio resources. The MsgA PUSCH resources are a set of PUSCH resources configured for each PRACH slot, including time-frequency resources and demodulation reference signal (DMRS) resources, and are associated with the PRACH resources within the PRACH slot.
[0054] 3. Other terms
[0055] The terms "first", "second", etc. in this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here. And the objects distinguished by "first" and "second" are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in this application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally means that the related objects before and after are in an "or" relationship.
[0056] The term "indicate" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.
[0057] The term "at least one (item)", "at least one of" and the like in this application refer to any one, any two or more combinations of the objects it contains. For example, at least one (item) of a, b, and c can represent: "a", "b", "c", "a and b", "a and c", "b and c", and "a, b, and c", where a, b, and c can be single or multiple. Similarly, "at least two (items)" refers to two or more, and its meaning is similar to that of "at least one (item)".
[0058] It is worth noting that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as 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) or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the systems and radio technologies mentioned above, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR terms are used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system. th Generation, 6G) communication system.
[0059] Figure 2A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a 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, an aircraft, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc., which are terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), 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, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
[0060] Next, with reference to the accompanying drawings, the resource type determination method, apparatus, and related products provided in the embodiments of this application will be described in detail through some embodiments and their application scenarios.
[0061] Figure 3 The flowchart of a resource type determination method provided in the embodiments of this application is shown. As Figure 3 shown, a resource type determination method provided in the embodiments of this application may include the following steps 101 and 102.
[0062] Step 101: The terminal obtains first information.
[0063] In some embodiments of this application, the above terminal is any one of multiple terminals of different types.
[0064] In some embodiments of this application, after the terminal initiates RACH, the terminal can obtain first information.
[0065] In the embodiments of this application, the above first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel.
[0066] In some embodiments of the present application, the above-mentioned random access response message may specifically include at least one of the following: Msg 2, MsgB, Msg 4, etc.
[0067] In some embodiments of the present application, the above-mentioned first downlink channel may specifically be a downlink channel for scheduling a random access response message. The first downlink channel may include at least one of the following: PDCCH, downlink control information (DCI), and DCI carried by PDCCH.
[0068] In some embodiments of the present application, the above-mentioned second downlink channel may specifically be a downlink channel sent by a network-side device, and the second downlink channel may be used to carry indication information of the network-side device.
[0069] In some embodiments of the present application, the information corresponding to the above-mentioned first downlink channel includes at least one of the following:
[0070] A radio network temporary identifier (RA-RNTI) corresponding to the first downlink channel;
[0071] Information carried by the first downlink channel.
[0072] Optionally, the RNTI corresponding to the above-mentioned first downlink channel may be understood as: the RNTI corresponding to the first downlink channel that schedules the PDSCH carrying the random access response message. Specifically, the CRC of the first downlink channel is scrambled by the RNTI.
[0073] Optionally, the above-mentioned RNTI may specifically be an RNTI related to random access, such as a random access radio network temporary identifier (RA-RNTI), MsgB-RNTI, etc.
[0074] Optionally, the information carried by the above-mentioned first downlink channel may include: explicitly carried information, implicitly carried information.
[0075] Thus, it can be seen that in the embodiments of the present application, the specific content included in the information corresponding to the first downlink channel is proposed, that is, at least one of the RNTI corresponding to the first downlink channel and the information carried by the first downlink channel. In this way, in subsequent steps, the terminal can directly and accurately determine the first random access resource type corresponding to the random access response message according to at least one of the RNTI corresponding to the first downlink channel and the information carried by the first downlink channel.
[0076] In some embodiments of the present application, the above-mentioned RNTI is determined by at least one of the following:
[0077] The identifier of at least one first time unit, where at least one first time unit corresponds to a first PRACH resource, and the first PRACH resource is used to send a random access message corresponding to a random access response message. The first time unit includes at least one of the following: system frame, time slot, orthogonal frequency division multiplexing (OFDM) symbol;
[0078] The identifier of a first frequency domain unit, where the first frequency domain unit corresponds to the first PRACH resource;
[0079] The identifier of a first uplink carrier, where the first uplink carrier is the uplink carrier where the first PRACH resource is located;
[0080] The identifier of a second random access resource type, where the second random access resource type is the random access resource type corresponding to the first PRACH resource;
[0081] The identifier of a first uplink sub-band, where the first uplink sub-band is the uplink sub-band where the first PRACH resource is located;
[0082] A first offset value.
[0083] It can be understood that at least one first time unit may include the identifier of at least one time slot, and / or may include the identifier of at least one OFDM symbol.
[0084] In the embodiments of the present application, the above-mentioned "random access message corresponding to the random access response message" can be understood as: a random access message that triggers the network-side device to send a random access response message, that is, a random access message sent by the terminal to the network-side device before receiving the random access response message; or, a random access message sent to the network-side device according to the random access response message, that is, a random access message sent by the network-side device after the terminal receives the random access response message.
[0085] Among them, the above-mentioned random access message may include at least one of the following: Msg 1, MsgA, Msg 3, Msg 5, etc.
[0086] Among them, the above-mentioned first PRACH resource may specifically be: a PRACH resource used to send a random access message that triggers the network-side device to send a random access response message (that is, a random access message sent by the terminal to the network-side device before receiving the random access response message).
[0087] Among them, the at least one first time unit may include: a time unit located at the start position or the end position of the first PRACH resource; the identifier of the at least one first time unit may include: the identifier of the first OFDM symbol of the first PRACH resource, and the identifier of the first time slot of the first PRACH resource.
[0088] Optionally, the identifier of the at least one first time unit may specifically be the index of the at least one first time unit. Among them, the index of the first OFDM symbol of the first PRACH resource is greater than or equal to 0 and less than the first index maximum value, and the index of the first time slot of the first PRACH resource is greater than or equal to 0 and less than the second index maximum value. The first index maximum value and the second index maximum value may be values indicated by the network side device.
[0089] Among them, the first frequency domain unit may specifically be the uplink sub-band where the start or end position in the frequency domain is located. The identifier of the first frequency domain unit may specifically be the index of the first frequency domain unit. The index of the first frequency domain unit is greater than or equal to 0 and less than the third index maximum value, and the third index maximum value may be a value indicated by the network side device.
[0090] Among them, the identifier of the first uplink carrier may specifically be the ID of the first uplink carrier, and the ID of the first uplink carrier is greater than or equal to 0.
[0091] In the embodiments of the present application, the above second random access resource type may be understood as: a terminal transmission capability or a terminal duplex mode type or a resource type for sending the above random access message on the first PRACH resource.
[0092] It should be noted that the descriptions of the above terminal transmission capability, terminal duplex mode type, and resource type will be specifically described in the following embodiments, and will not be elaborated in the embodiments of the present application.
[0093] Among them, the identifier of the second random access resource type may specifically be the ID of the second random access resource type, and the ID of the second random access resource type is greater than or equal to 0.
[0094] Among them, the identifier of the first uplink sub-band may specifically be the ID of the first uplink sub-band, and the ID of the first uplink sub-band is greater than or equal to 0.
[0095] Among them, the first offset value may specifically satisfy at least one of the following: a pre-configured value, a predefined value, a value agreed upon by the protocol, etc. The first offset value is greater than or equal to 0.
[0096] In some embodiments of the present application, the terminal may calculate the above RNTI by using a first algorithm according to at least one of the above contents.
[0097] Taking the above RNTI as the RA-RNTI as an example, the first algorithm can be specifically as follows:
[0098] RA-RNTI = C + a × s_id + b × t_id + c × f_id + d × ul_carrier_id + e × ro_type_id + f × ul_subband_id + offset
[0099] Wherein, RA-RNTI is the RNTI corresponding to the first downlink channel (such as RA-RNTI), s_id is the index of the first OFDM symbol of the first PRACH resource, t_id is the identifier of the first time slot of the first PRACH resource, f_id is the identifier of the first frequency domain unit, ul_subband_id is the identifier of the first uplink carrier, ro_type_id is the identifier of the second random access resource type, offset is the first offset value, a, b, c, d, e are weight variables, and the values are integers greater than or equal to 0. The a, b, c, d, e can be pre-configured values, or predefined values, or values agreed upon by the protocol. C is a fixed constant, and the value is an integer greater than or equal to 0. C can be a pre-configured value, or a predefined value, or a value agreed upon by the protocol.
[0100] As can be seen, since at least one content for determining the RNTI corresponding to the first downlink channel is pointed out in the embodiments of the present application, in this way, the terminal can accurately determine the RNTI corresponding to the first downlink channel according to the at least one content. Therefore, in the subsequent steps, the terminal can accurately determine the first random access resource type corresponding to the random access response message according to the RNTI corresponding to the first downlink channel.
[0101] In some embodiments of the present application, the information carried by the above first downlink channel includes second information carried by the first downlink channel; wherein, the second information includes at least one of the following:
[0102] Cyclic Redundancy Check (CRC) scrambling sequence corresponding to the first downlink channel;
[0103] Resource information corresponding to the first downlink channel;
[0104] Format of the first downlink control information DCI carried by the first downlink channel, and the first DCI is used to schedule the random access response message;
[0105] Third information carried by the first DCI, and the third information is used to indicate the first random access resource type.
[0106] Among them, the above CRC scrambling sequence is determined according to the payload of the information carried by the first downlink channel and the first CRC of the information.
[0107] Optionally, the CRC scrambling sequence is calculated by using a second algorithm according to the payload of the information carried by the first downlink channel, the first CRC of the information, and the random access resource type corresponding to the first PRACH resource.
[0108] Among them, the second algorithm can specifically be:
[0109]
[0110] Among them, CRC_total is the CRC scrambling sequence, CRC_payload is obtained by scrambling the payload of the information carried by the first downlink channel with the first CRC, and ro_type is the random access resource type corresponding to the first PRACH resource. Among them, ro_type can be scrambled to any bit of CRC_payload to obtain CRC_total, and the any bit can be m bits starting from the highest bit or m bits starting from the lowest bit, and m is a positive integer.
[0111] In some embodiments of the present application, the above resource information includes at least one of the following:
[0112] The control resource set CORESET corresponding to the first downlink channel;
[0113] The DMRS scrambling sequence of the CORESET corresponding to the first downlink channel;
[0114] The DMRS sequence of the CORESET corresponding to the first downlink channel;
[0115] The DMRS port of the CORESET corresponding to the first downlink channel;
[0116] The search space corresponding to the first downlink channel;
[0117] The first control channel element (CCE) of the search space corresponding to the first downlink channel, and the first CCE corresponds to the first downlink channel;
[0118] The first aggregation level (AL) of the search space corresponding to the first downlink channel, and the first AL corresponds to the first downlink channel.
[0119] Optionally, the above first CCE may include any one of the following: start position, end position.
[0120] It can be seen that since the specific content included in the resource information corresponding to the first downlink channel is pointed out in the embodiments of the present application, in subsequent steps, the terminal can accurately determine the resource information corresponding to the first downlink channel according to this specific content. Therefore, the terminal can accurately determine the first random access resource type corresponding to the random access response message according to this resource information.
[0121] In some embodiments of the present application, an existing indication field, or a newly added indication field, or a reserved indication field (reserved) can be used in the random access response (RandomAccess Response, RAR) grant or media access control (MediaAccess Control, MAC) of the random access response message to carry the first DCI.
[0122] In some embodiments of the present application, the position of the third information in the first DCI can be predefined or indicated by a network-side device.
[0123] It can be seen that since the specific content of the second information carried by the first downlink channel is pointed out in the embodiments of the present application, in subsequent steps, the terminal can accurately determine the first random access resource type corresponding to the random access response message according to this second information.
[0124] In some embodiments of the present application, the above second downlink channel may include at least one of the following: DCI for scheduling Msg3 and Msg4, DCI for scheduling uplink data or downlink data, DCI for not scheduling data. The information corresponding to the second downlink channel includes: the fourth information included in the second DCI carried by the second downlink channel, the second DCI is a broadcast DCI or a group common DCI, and the fourth information is used to indicate the first random access resource type.
[0125] Optionally, a separate type indication column can be used in the table of Mask Index values to carry the fourth information.
[0126] It can be seen that since the fourth information for indicating the first random access resource type can be carried in the second downlink channel, in subsequent steps, the terminal can accurately determine the first random access resource type corresponding to the random access response message according to this fourth information.
[0127] In some embodiments of the present application, the information corresponding to the above second downlink channel includes: the fifth information included in the third DCI carried by the second downlink channel, and the fifth information includes at least one of the following: frame structure, time domain structure, time slot type, duplex mode, BWP, time domain resource.
[0128] In some embodiments of the present application, the terminal may determine the first random access resource type corresponding to the random access response message based on the random access resource type corresponding to the fifth information.
[0129] As can be seen, since the fifth information can be carried on the second downlink channel, in subsequent steps, the terminal can accurately determine the first random access resource type corresponding to the random access response message based on this fifth information.
[0130] In some embodiments of the present application, the information carried in the above random access response message includes sixth information, which is used to indicate the first random access resource type.
[0131] In some embodiments of the present application, the sixth information can be carried in the RAR grant or MAC of the random access response message by using an existing indication field, or a newly added indication field, or a reserved indication field (reserved).
[0132] As can be seen, since the sixth information can be carried in the random access response message, in subsequent steps, the terminal can accurately determine the first random access resource type corresponding to the random access response message based on this sixth information.
[0133] Step 102: The terminal determines the first random access resource type corresponding to the random access response message based on the first information.
[0134] In the embodiments of the present application, the above first random access resource type can be understood as: a terminal transmission capability or a terminal duplex mode type or a resource type when sending a random access message (that is, a random access message sent to the network device according to the random access response message, that is, after the terminal receives the random access response message, and then sends a random access message to the network device).
[0135] Among them, the above first random access resource type can also be expressed as a random access opportunity (RACH Occasion, RO) type, or can be expressed as an RO group, RO classification, PRACH resource type, PRACH resource group, RACH type, RACH classification, etc.
[0136] It should be noted that the descriptions of the above terminal transmission capability, terminal duplex mode type, and resource type will be specifically described in the following embodiments, and will not be elaborated in the embodiments of the present application.
[0137] In some embodiments of the present application, the terminal may determine the random access resource type corresponding to the first information as the first random access resource type corresponding to the random access response message.
[0138] Optionally, when the first information includes information corresponding to a first downlink channel, and the information corresponding to the first downlink channel includes an RNTI, the terminal may determine the random access resource type corresponding to the RNTI as the first random access resource type.
[0139] Specifically, the method for the terminal to determine the first random access resource type according to the RNTI corresponding to the first downlink channel specifically includes: the terminal sends a random access message on the first PRACH resource; the terminal determines the RNTI corresponding to the first downlink channel based on information such as the time unit identifier, frequency domain unit identifier, and carrier identifier corresponding to the first PRACH resource; the terminal detects the downlink control channel corresponding to the random access response message based on the RNTI. When the terminal detects the downlink control channel corresponding to the random access response message, it can be considered that the terminal obtains the random access resource type corresponding to the first PRACH resource, that is, the first random access resource type, or the first random access resource type corresponding to the random access response message, or the first random access resource type corresponding to the random access message.
[0140] Optionally, when the first information includes information corresponding to a first downlink channel, and the information corresponding to the first downlink channel includes second information carried by the first downlink channel, and the second information includes the CRC scrambling sequence corresponding to the first downlink channel, the terminal may determine the random access resource type corresponding to the CRC scrambling sequence of the first downlink channel as the first random access resource type.
[0141] Specifically, the method for the terminal to determine the first random access resource type according to the CRC scrambling sequence corresponding to the first downlink channel specifically includes: the terminal sends a random access message on the first PRACH resource; the terminal determines the CRC scrambling sequence based on the first random access resource type; the terminal verifies the DCI carried in the downlink control channel corresponding to the random access response message based on the CRC scrambling sequence. When the terminal passes the verification of the DCI, it can be considered that the terminal obtains the random access resource type corresponding to the first PRACH resource, that is, the first random access resource type, or the first random access resource type corresponding to the random access response message, or the first random access resource type corresponding to the random access message.
[0142] Optionally, when the first information includes information corresponding to a first downlink channel, and the information corresponding to the first downlink channel includes second information carried by the first downlink channel, and the second information includes resource information corresponding to the first downlink channel, the terminal may determine the random access resource type corresponding to the resource information as the first random access resource type.
[0143] Among them, it can be understood that the random access resource types corresponding to the DMRS scrambling sequences of different CORESETs are different, the random access resource types corresponding to the DMRS sequences of different CORESETs are different, the random access resource types corresponding to the DMRS ports of different CORESETs are different, the random access resource types corresponding to different first CCEs are different, and the random access resource types corresponding to different search spaces are different. That is, each CORESET, DMRS parameter, search space, CCE, AL, etc. can independently correspond to a certain random access resource type. That is, multiple CORESETs, DMRS parameters, search spaces, CCEs, ALs can correspond to the same or different random access resource types, depending on the network-side device configuration or network-side device implementation.
[0144] For example, different CCE start positions can correspond to different random access resource types. For example, CCE startindex mod4 = 0, 1, 2, 3 can respectively correspond to 4 different random access resource types.
[0145] Specifically, the method for the terminal to determine the first random access resource type according to the resource information corresponding to the first downlink channel specifically includes: the terminal sends a random access message on the first PRACH resource; the terminal detects the downlink control channel or DCI corresponding to the random access response message based on information such as CORESET, DMRS, search space, CCE, AL, etc. When the terminal detects the downlink control channel or DCI, it can be considered that the terminal obtains the random access resource type corresponding to the first PRACH resource, that is, the first random access resource type, or the first random access resource type corresponding to the random access response message, or the first random access resource type corresponding to the random access message.
[0146] In some embodiments of the present application, when the terminal determines the first random access resource type corresponding to the random access response message, if the terminal determines that the terminal supports the first random access resource type, the terminal can send a random access message based on the first random access resource type on the PRACH resource corresponding to the random access response message. Among them, the PRACH resource may include at least one of the following: RACH transmission opportunity, preamble Preamble, preamble index Preambleindex, etc.
[0147] An embodiment of the present application provides a method for determining a resource type. A terminal can obtain first information, which includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, and information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel. Then, based on the first information, the terminal determines a first random access resource type corresponding to the random access response message. Since the terminal can obtain the first information including at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, and accurately determine the first random access resource type corresponding to the random access response message according to at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message. In this way, when the terminal does not support the first random access resource type, it can accurately determine that the random access response message does not correspond to the message of this terminal, and will not send a random access message on the PRACH resource corresponding to the random access response message. Therefore, it is possible to avoid the failure of sending the random access message due to the terminal being unable to send a message on the PRACH resource, thereby reducing the number of failures of the terminal performing RACH, and further improving the success rate of the terminal performing RACH.
[0148] In some embodiments of the present application, in combination with Figure 3 , as Figure 4 shown, after step 101 above, the resource type determination method provided by the embodiment of the present application may further include the following step 103.
[0149] Step 103: The terminal determines a random access resource type corresponding to the random access message according to the first information.
[0150] It should be noted that for the execution order of step 103 and step 102, the embodiment of the present application does not make a limitation here; in one example, the terminal may first execute step 102 and then execute step 103, that is, Figure 4 the execution order shown in
[0151] In the embodiment of the present application, the above random access message corresponds to the random access response message.
[0152] In some embodiments of the present application, the random access message may be a random access message obtained by the terminal according to the random access response message, that is, in the RACH process, after the terminal receives the random access response message, the random access message that needs to be sent to the network side device.
[0153] It should be noted that for the description of the terminal determining the random access resource type corresponding to the random access message according to the first information, reference can be made to the specific description of the terminal determining the first random access resource type corresponding to the random access response message in the above embodiments, and the embodiments of the present application will not elaborate herein.
[0154] As can be seen, since the terminal can also accurately determine the random access resource type corresponding to the random access message according to at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, the terminal can determine that when the random access resource type corresponding to the random access message is supported, directly send the random access message on the PRACH resource corresponding to the random access message. Therefore, it is possible to avoid the failure of sending the random access message due to the terminal being unable to send a message on this PRACH resource, thereby reducing the number of failures of the terminal performing RACH; or, when the terminal determines that the random access resource type corresponding to the random access message is not supported, reselect a resource of the random access resource type supported by the terminal and send a message. Therefore, it is possible to avoid the failure of sending the random access message due to the terminal being unable to send a message on this PRACH resource, thereby reducing the number of failures of the terminal performing RACH.
[0155] In some embodiments of the present application, after the above step 101, the resource type determination method provided by the embodiments of the present application may further include the following step 104.
[0156] Step 104: The terminal can perform the transmission of the random access process according to the first information and the first random access resource type corresponding to the random access response message.
[0157] It can be understood that the above step 104 can replace the above step 102.
[0158] In some embodiments of the present application, the transmission in the above random access process includes: corresponding uplink transmission or downlink reception in the random access process.
[0159] In some embodiments of the present application, after the above step 101, the resource type determination method provided by the embodiments of the present application may further include the following step 105.
[0160] Step 105: The terminal can perform the transmission of the random access process according to the first information and the random access resource type corresponding to the random access message.
[0161] It can be understood that the above step 105 can replace the above step 103.
[0162] In some embodiments of the present application, the transmission in the above random access process includes: the corresponding uplink transmission or downlink reception in the random access process.
[0163] In some embodiments of the present application, in combination with Figure 3 , such as Figure 5 shown, before step 101 above, the resource type determination method provided by the embodiments of the present application may further include the following step 201.
[0164] Step 201: The terminal obtains the second PRACH resource configured by the network-side device.
[0165] In the embodiments of the present application, the above second PRACH resource is used to send a random access message corresponding to a random access response message.
[0166] In some embodiments of the present application, the second PRACH resource may include one or more PRACH resources, and the above first PRACH resource is one of the one or more PRACH resources.
[0167] In this embodiment, the random access message may specifically be a random access message that triggers the network-side device to send a random access response message. For example, the random access message may be a message for initiating RACH, such as Msg 1, MsgA.
[0168] In some embodiments of the present application, the above second PRACH resource may include at least one of the following: RACH transmission opportunity, Preamble, Preamble index, etc.
[0169] In the embodiments of the present application, the above second PRACH resource corresponds to at least one seventh piece of information, and the seventh piece of information includes at least one of the following:
[0170] Terminal transmission capability;
[0171] Terminal duplex mode type;
[0172] Resource type.
[0173] Among them, the above terminal transmission capability includes at least one of the following:
[0174] Terminal duplex capability;
[0175] In the full-duplex mode, the guard band capability of the terminal;
[0176] In the full-duplex mode, the transmit power capability of the terminal;
[0177] In the full-duplex mode, the interference suppression capability of the terminal;
[0178] In the embodiments of the present application, in the full-duplex mode, the terminal supports signal transmission on the downlink sub-band and the uplink sub-band simultaneously.
[0179] Optionally, the duplex capability of the above terminal is used to indicate whether the terminal supports the full-duplex mode.
[0180] Specifically, the duplex capability of the terminal is used to indicate at least one of the following: whether the terminal supports signal reception on the downlink sub-band configured in the uplink time slot, and whether the terminal supports signal transmission on the uplink sub-band configured in the downlink time slot.
[0181] Optionally, the guard band capability of the above terminal can be understood as: the size, quantity, or length of the minimum guard band required by the terminal to ensure interference isolation between the downlink sub-band and the uplink sub-band in the full-duplex mode.
[0182] Among them, the guard band capability of the terminal may include at least one guard band, and different guard bands are related to the following: the bandwidth of downlink transmission, the bandwidth of uplink transmission, the maximum transmit power, the interference suppression capability of the terminal, the spatial characteristics of downlink transmission, and the spatial characteristics of uplink transmission.
[0183] Optionally, the transmit power capability of the above terminal can be understood as: the maximum transmit power allowed by the terminal to ensure interference isolation between the downlink sub-band and the uplink sub-band in the full-duplex mode.
[0184] Among them, the transmit power capability of the terminal may include at least one maximum transmit power, and different maximum transmit powers correspond to different: the frequency domain interval between downlink transmission / uplink transmission and uplink transmission, the bandwidth of downlink transmission, the bandwidth of uplink transmission, the interference suppression capability of the terminal, the spatial characteristics of downlink transmission, and the spatial characteristics of uplink transmission.
[0185] Optionally, the interference suppression capability of the above terminal can be understood as: the degree of interference suppression that the transmitting end / receiving end can provide in the full-duplex mode.
[0186] Among them, the interference suppression capability of the terminal may include at least one interference suppression capability index, and different interference suppression capability indexes may correspond to different: the frequency domain interval between downlink transmission and uplink transmission, the bandwidth of downlink transmission, the bandwidth of uplink transmission, the maximum transmit power, the spatial characteristics of downlink transmission, and the spatial characteristics of uplink transmission.
[0187] In some embodiments of the present application, the duplex capability of the above terminal includes at least one of the following:
[0188] Whether the terminal supports the full-duplex mode;
[0189] Whether the terminal supports signal reception on the downlink sub-band in the uplink time unit;
[0190] Whether the terminal supports signal transmission on the uplink sub-band of the downlink time unit.
[0191] In some embodiments of the present application, the above terminal duplex mode types include any one of the following:
[0192] Full duplex mode, in which the terminal supports signal transmission on the downlink sub-band and the uplink sub-band simultaneously;
[0193] Fully overlapping full duplex mode, in which the terminal supports signal transmission on at least partially overlapping downlink sub-bands and uplink sub-bands simultaneously;
[0194] Sub-band non-overlapping full duplex mode, in which the terminal supports signal transmission on non-overlapping downlink sub-bands and uplink sub-bands simultaneously;
[0195] Half duplex mode, in which the terminal does not support simultaneous signal reception and signal transmission;
[0196] First duplex mode, in which the terminal supports signal reception on the downlink sub-band of the uplink time unit;
[0197] Second duplex mode, in which the terminal supports signal transmission on the uplink sub-band of the downlink time unit.
[0198] In some embodiments of the present application, the above resource types include any one of the following:
[0199] First resource type, which is used to represent a type of time domain resource with an uplink time domain format;
[0200] Second resource type, which is used to represent a type of time domain resource with a first format in the time domain and the corresponding reference signal does not include the first reference signal. The first format is the time domain format for full duplex transmission. In the full duplex mode, the terminal supports signal transmission on the downlink sub-band and the uplink sub-band simultaneously. The frequency domain resource corresponding to the time domain resource of the first format includes the uplink sub-band and the downlink sub-band;
[0201] Third resource type, which is used to represent a type of time domain resource with a first format in the time domain and the corresponding reference signal includes the first reference signal;
[0202] Fourth resource type, which is used to represent a type of time domain resource with an uplink or first format in the time domain and the interval between the corresponding time domain resource and the time domain resource corresponding to the first reference signal is greater than or equal to the first preset value.
[0203] In some embodiments of the present application, the above first reference signal may include at least one of the following: Synchronization Signal and PBCH block (SSB), System Information Block (SIB), Master Information Block (MIB), paging signal, etc.
[0204] As can be seen, since the network-side device can configure a second PRACH resource for the terminal to send a random access message corresponding to the random access response message, the terminal can select a certain PRACH resource that the terminal can use / recognize from the second PRACH resources according to the supported random access resource type, and successfully send a random access message on the certain PRACH resource to successfully initiate the RACH process. Therefore, the situation where the random access message fails to be sent due to the terminal being unable to use / recognize the selected PRACH resource can be avoided, thereby avoiding the situation where the RACH process fails to be initiated, and further improving the success rate of the terminal initiating the RACH process.
[0205] In some embodiments of the present application, after the above step 201, the resource type determination method provided by the embodiments of the present application may further include the following step 202.
[0206] Step 202: The terminal receives the eighth information from the network-side device.
[0207] In the embodiments of the present application, the above eighth information is used to indicate the correspondence between the second PRACH resource and at least one seventh information.
[0208] In some embodiments of the present application, the above eighth information is used to indicate the correspondence between at least part of the second PRACH resources and at least one seventh information.
[0209] In some embodiments of the present application, after the terminal receives the eighth information, the terminal can obtain the resource types corresponding to at least part of the second PRACH resources.
[0210] Among them, the terminal can obtain the resource types corresponding to at least part of the second PRACH resources, satisfying at least one of the following:
[0211] In the case where the terminal has any terminal transmission capability / terminal duplex mode type, the terminal can know the resource types of all second PRACH resources;
[0212] When the terminal has a certain terminal transmission capability / terminal duplex mode type, the terminal can learn about the resource types of all second PRACH resources and can only use the PRACH resources of the PRACH resource type corresponding to the certain terminal transmission capability / terminal duplex mode type;
[0213] The terminal can learn about and use at least one PRACH resource type, and the at least one PRACH resource type is the PRACH resource type corresponding to the terminal transmission capability / terminal duplex mode type of the terminal among the second PRACH resources.
[0214] Optionally, a half-duplex terminal can learn about all types of PRACH resources including those in the second PRACH resources, and the PRACH resources are valid. However, the terminal can only choose to initiate a RACH on the type 1 PRACH resources (type 1 corresponds to half-duplex transmission resources).
[0215] Optionally, a half-duplex terminal can learn about the type 1 PRACH resources in the second PRACH resources, and the PRACH resources are valid. The terminal can only choose to initiate a RACH on the type 1 PRACH resources (type 1 corresponds to half-duplex transmission resources).
[0216] In some embodiments of the present application, after the terminal receives the eighth piece of information, the terminal can initiate a RACH procedure according to the second PRACH resources and the eighth piece of information.
[0217] Exemplarily, when the terminal initiates a RACH procedure, the terminal can learn about the PRACH resource types available for initiating the RACH. In another implementation, when the terminal initiates a RACH, the terminal does not learn about the PRACH resource types available for initiating the RACH. Specifically, if the terminal can learn about the random access resource types available for initiating the RACH, the terminal can arbitrarily select a random access resource type that meets the terminal capabilities to initiate the RACH, and the network-side device can determine the random access resource type according to indications such as RNTI or RAR, so that terminals with specified capabilities or terminals using specified random access resource types can continue to complete the RACH procedure. On the other hand, if the terminal cannot learn about the random access resource type, the network-side device can indicate the random access resource type according to indications such as RNTI or RAR. If the indicated random access resource type meets the terminal transmission capability and terminal duplex mode type of the terminal, the terminal completes the RACH procedure according to the random access message / resource corresponding to the type of random access resource. Otherwise, the terminal re-selects a random access resource to initiate the RACH procedure.
[0218] Exemplarily, a terminal with enhanced duplex capability initiates a RACH and selects a random access resource corresponding to the enhanced duplex capability or enhanced duplex resource type. Since a terminal with enhanced duplex capability can obtain random access resources located in full-duplex transmission resources and random access resources located in half-duplex transmission resources, the time-domain numbers and frequency-domain numbers of these random access resources can be sorted together to obtain an RNTI. Through the RNTI, the network device can indicate the number of the random access resource used by the terminal, and the number of this random access resource can distinguish different random access resource types. In addition, the network device can also carry implicit or explicit random access resource type indication information through the PDCCH and PDSCH corresponding to the random access response message to indicate the random access resource type of the initiated RACH.
[0219] It should be noted that in the embodiments of the present application, the descriptions "enhanced duplex, enhanced duplex mode, XDD, enhanced full duplex, enhanced full duplex mode, full duplex, sub-band full duplex" can represent the same concept.
[0220] Exemplarily, a terminal with half-duplex capability initiates a RACH and selects a random access resource corresponding to the half-duplex capability or half-duplex resource type. For a terminal with half-duplex capability, in one implementation, this type of terminal can obtain random access resources located in full-duplex transmission resources and random access resources located in half-duplex transmission resources, but can only use the random access resources of the half-duplex transmission resources. In this implementation, the time-domain numbers and frequency-domain numbers of all these types of random access resources are sorted together to obtain an RNTI. Through the RNTI, the network device can indicate the number of the random access resource used by the terminal, and the number of this random access resource can distinguish different random access resource types. In another implementation, this type of terminal can only obtain random access resources located in half-duplex transmission resources, so it can also only use the random access resources of the half-duplex transmission resources. In this implementation, the network device can carry implicit or explicit random access resource type indication information through the PDCCH and PDSCH corresponding to the random access response message to indicate the random access resource type of the initiated RACH.
[0221] Thus, it can be seen that since the terminal can receive the eighth information from the network device, and this eighth information is used to indicate the correspondence between the second PRACH resource and at least one seventh information, the terminal can accurately determine the PRACH resource for sending the random access message according to its own capability. Therefore, the situation where the terminal fails to send the random access message can be avoided, thereby reducing the number of failures in the process of the terminal initiating a RACH, and further improving the success rate of the process of the terminal initiating a RACH.
[0222] Each of the above method embodiments, or various possible implementation manners in each method embodiment, can be executed independently, or any two or more of them can be combined with each other. Specifically, it can be determined according to actual usage requirements, and the embodiments of the present application do not limit this.
[0223] Figure 6 The flowchart of a resource type determination method provided by an embodiment of the present application is shown. As Figure 6 shown, a resource type determination method provided by an embodiment of the present application may include step 301 below.
[0224] Step 301: The network side device indicates at least one first piece of information to at least one terminal.
[0225] In the embodiments of the present application, for each first piece of information in the at least one first piece of information, one first piece of information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message, the first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; each first piece of information is used to determine a first random access resource type corresponding to a random access response message.
[0226] It should be noted that for the description of the first piece of information, the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, reference can be made to the specific description in the above embodiments, and the embodiments of the present application will not elaborate here.
[0227] In some embodiments of the present application, after the network side device receives RACH procedures initiated by different terminals on resources of different random access resource types, when transmitting the random access response message, the network side device can use the RNTI corresponding to each random access resource type, the corresponding PDCCH CRC scrambling parameter / DMRS related parameter or sequence, the PDCCH carrying the RO_type corresponding indication information, and the PDSCH carrying the RO_type corresponding indication information to indicate each first piece of information to each terminal.
[0228] The embodiments of the present application provide a method for determining a resource type. The network side device may indicate at least one first piece of information to at least one terminal. One first piece of information includes at least one of the following: information corresponding to one first downlink channel, information corresponding to one second downlink channel, and information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is the downlink channel other than the first downlink channel. Each first piece of information is used to determine a first random access resource type corresponding to a random access response message. Since the network side device can indicate to the terminal the first piece of information including at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, so that the terminal can accurately determine the first random access resource type corresponding to the random access response message according to at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message. In this way, the terminal can accurately determine that the random access response message does not correspond to this terminal when the first random access resource type is not supported, and will not send a random access message on the PRACH resource corresponding to the random access response message. Therefore, it is possible to avoid the failure of sending the random access message due to the terminal being unable to send a message on this PRACH resource, thereby reducing the number of failures of the terminal to perform RACH, and further improving the success rate of the terminal to perform RACH.
[0229] In some embodiments of the present application, before the above step 301, the resource type determination method provided by the embodiments of the present application may further include the following step 401.
[0230] Step 401: The network side device configures a second PRACH resource for each terminal.
[0231] In the embodiments of the present application, each second PRACH resource is used for each terminal to send a random access message corresponding to a random access response message. Each second PRACH resource corresponds to at least one seventh piece of information, and the seventh piece of information includes at least one of the following:
[0232] Terminal transmission capability;
[0233] Terminal duplex mode type;
[0234] Resource type.
[0235] It should be noted that for the description of the terminal transmission capability, the terminal duplex mode type, and the resource type, reference may be made to the specific descriptions in the above embodiments, and the embodiments of the present application will not elaborate herein.
[0236] It can be seen that since the network-side device can configure a second PRACH resource for the terminal to send a random access message corresponding to a random access response message, the terminal can select a certain PRACH resource that the terminal can use / recognize from the second PRACH resources according to the supported random access resource type, and successfully send a random access message on the certain PRACH resource to successfully initiate the RACH procedure. Therefore, the situation where the random access message is sent fails because the terminal cannot use / recognize the selected PRACH resource can be avoided, thereby avoiding the situation where the RACH procedure initiation fails, and further improving the success rate of the terminal initiating the RACH procedure.
[0237] In some embodiments of the present application, after the above step 401, the resource type determination method provided by the embodiments of the present application may further include the following step 402.
[0238] Step 402: The network-side device sends eighth information to each terminal.
[0239] In the embodiments of the present application, each piece of eighth information is used to indicate the correspondence between the second PRACH resource configured for the corresponding terminal and at least one piece of seventh information.
[0240] It can be seen that since the network-side device can send eighth information to each terminal, and the eighth information is used to indicate the correspondence between the second PRACH resource configured for the corresponding terminal and at least one piece of seventh information, each terminal can accurately determine the PRACH resource for sending a random access message according to its own capabilities. Therefore, the situation where a certain terminal fails to send a random access message can be avoided, thereby reducing the number of times a certain terminal fails to initiate the RACH procedure, and further improving the success rate of the terminal initiating the RACH procedure.
[0241] Each of the above method embodiments, or various possible implementation manners in each method embodiment, can be executed alone, or any two or more of them can be combined with each other. It can be specifically determined according to actual usage requirements, and the embodiments of the present application do not limit this.
[0242] For the resource type determination method provided by the embodiments of the present application, the execution subject may be a resource type determination device. In the embodiments of the present application, taking the resource type determination device executing the resource type determination method as an example, the resource type determination device provided by the embodiments of the present application is described.
[0243] Figure 7 Shows a possible structural schematic diagram of the resource type determination device provided by the embodiments of the present application. As Figure 7As shown in the figure, the resource type determination device 30 provided in the embodiment of the present application may include: an acquisition module 31, configured to acquire first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, and information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel. A processing module 32, configured to determine a first random access resource type corresponding to the random access response message according to the first information acquired by the acquisition module 31.
[0244] The embodiment of the present application provides a resource type determination device. Since the resource type determination device can acquire first information including at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, and accurately determine the first random access resource type corresponding to the random access response message according to at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message. In this way, the resource type determination device can accurately determine that the random access response message does not correspond to the message of this resource type determination device when the first random access resource type is not supported, and will not send a random access message on the PRACH resource corresponding to the random access response message. Therefore, it is possible to avoid the failure of sending the random access message due to the resource type determination device being unable to send a message on this PRACH resource, thereby reducing the number of failures of the resource type determination device to perform RACH, and further improving the success rate of the resource type determination device to perform RACH.
[0245] In a possible implementation manner, the information corresponding to the first downlink channel includes at least one of the following: the RNTI corresponding to the first downlink channel; the information carried by the first downlink channel.
[0246] In a possible implementation manner, the RNTI is determined by at least one of the following: the identifier of at least one first time unit, where at least one first time unit corresponds to a first PRACH resource, and the first PRACH resource is used to send a random access message corresponding to the random access response message. The first time unit includes at least one of the following: system frame, time slot, OFDM symbol; the identifier of a first frequency domain unit, where the first frequency domain unit corresponds to the first PRACH resource; the identifier of a first uplink carrier, where the first uplink carrier is the uplink carrier where the first PRACH resource is located; the identifier of a second random access resource type, where the second random access resource type is the random access resource type corresponding to the first PRACH resource; the identifier of a first uplink subband, where the first uplink subband is the uplink subband where the first PRACH resource is located; a first offset value.
[0247] In a possible implementation, the information carried by the above-mentioned first downlink channel includes second information carried by the first downlink channel; wherein, the second information includes at least one of the following: a CRC scrambling sequence corresponding to the first downlink channel; resource information corresponding to the first downlink channel; a format of a first DCI carried by the first downlink channel, where the first DCI is used to schedule a random access response message; third information carried by the first DCI, where the third information is used to indicate a first random access resource type.
[0248] In a possible implementation, the above-mentioned resource information includes at least one of the following: a CORESET corresponding to the first downlink channel; a DMRS scrambling sequence of the CORESET corresponding to the first downlink channel; a DMRS sequence of the CORESET corresponding to the first downlink channel; DMRS ports of the CORESET corresponding to the first downlink channel; a search space corresponding to the first downlink channel; a first CCE of the search space corresponding to the first downlink channel, where the first CCE corresponds to the first downlink channel; a first AL of the search space corresponding to the first downlink channel, where the first AL corresponds to the first downlink channel.
[0249] In a possible implementation, the information corresponding to the above-mentioned second downlink channel includes: fourth information included in a second DCI carried by the second downlink channel, where the second DCI is a broadcast DCI or a group common DCI, and the fourth information is used to indicate a first random access resource type.
[0250] In a possible implementation, the information corresponding to the above-mentioned second downlink channel includes: fifth information included in a third DCI carried by the second downlink channel, where the fifth information includes at least one of the following: frame structure, time domain structure, slot type, duplex mode, BWP, time domain resources.
[0251] In a possible implementation, the information carried by the above-mentioned random access response message includes sixth information, where the sixth information is used to indicate a first random access resource type.
[0252] In a possible implementation, the above-mentioned obtaining module 31 is further configured to obtain a second PRACH resource configured by a network-side device, where the second PRACH resource is used to send a random access message corresponding to a random access response message, and the second PRACH resource corresponds to at least one seventh information, where the seventh information includes at least one of the following: terminal transmission capability; terminal duplex mode type; resource type.
[0253] In a possible implementation, the above terminal transmission capabilities include at least one of the following: the duplex capability of the resource type determination device 30; in the full-duplex mode, the guard band capability of the resource type determination device 30; in the full-duplex mode, the transmit power capability of the resource type determination device 30; in the full-duplex mode, the interference suppression capability of the resource type determination device 30; wherein, in the full-duplex mode, the resource type determination device 30 supports simultaneous signal transmission on the downlink sub-band and the uplink sub-band.
[0254] In a possible implementation, the above duplex capability of the resource type determination device 30 includes at least one of the following: whether the resource type determination device 30 supports the full-duplex mode; whether the resource type determination device 30 supports signal reception on the downlink sub-band in the uplink time unit; whether the resource type determination device 30 supports signal transmission on the uplink sub-band in the downlink time unit.
[0255] In a possible implementation, the above terminal duplex mode types include any one of the following: full-duplex mode, in which the resource type determination device 30 supports simultaneous signal transmission on the downlink sub-band and the uplink sub-band; fully overlapping full-duplex mode, in which the resource type determination device 30 supports simultaneous signal transmission on at least partially overlapping downlink sub-bands and uplink sub-bands; sub-band non-overlapping full-duplex mode, in which the resource type determination device 30 supports simultaneous signal transmission on non-overlapping downlink sub-bands and uplink sub-bands; half-duplex mode, in which the resource type determination device 30 does not support simultaneous signal reception and signal transmission; first duplex mode, in which the resource type determination device 30 supports signal reception on the downlink sub-band in the uplink time unit; second duplex mode, in which the resource type determination device 30 supports signal transmission on the uplink sub-band in the downlink time unit.
[0256] In a possible implementation, the above resource type includes any one of the following: a first resource type, which is used to represent a type of time-domain resource with an uplink time-domain format; a second resource type, which is used to represent a type of time-domain resource with a first format and whose corresponding reference signal does not include a first reference signal, where the first format is a time-domain format for full-duplex transmission. In the full-duplex mode, the resource type determination device 30 supports signal transmission on both the downlink sub-band and the uplink sub-band simultaneously. The frequency-domain resource corresponding to the time-domain resource of the first format includes the uplink sub-band and the downlink sub-band; a third resource type, which is used to represent a type of time-domain resource with a first format and whose corresponding reference signal includes a first reference signal; a fourth resource type, which is used to represent a type of time-domain resource with an uplink or first format and whose interval from the time-domain resource corresponding to the first reference signal is greater than or equal to a first preset value.
[0257] In a possible implementation, the resource type determination device 30 provided in the embodiments of the present application may further include: a receiving module, configured to receive an eighth piece of information from a network-side device, where the eighth piece of information is used to indicate the correspondence between a second PRACH resource and at least one seventh piece of information.
[0258] In a possible implementation, the above processing module 32 is further configured to determine, according to the first piece of information, a random access resource type corresponding to a random access message, where the random access message corresponds to a random access response message.
[0259] The resource type determination device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than terminals. Exemplarily, the terminal may include, but is not limited to, the types of the above-mentioned terminal 11, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.
[0260] The resource type determination device provided in the embodiments of the present application can implement Figures 3 to 5 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described here again.
[0261] Figure 8 shows a possible structural schematic diagram of the resource type determination device provided in the embodiments of the present application. As Figure 8As shown in the figure, the resource type determination device 40 provided by an embodiment of the present application may include: an indication module 41, configured to indicate at least one first piece of information to at least one terminal, where a first piece of information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, and information carried in a random access response message. The first downlink channel is a downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; wherein, each first piece of information is used to determine a first random access resource type corresponding to a random access response message.
[0262] An embodiment of the present application provides a resource type determination device. Since the resource type determination device can indicate to the terminal a first piece of information including at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, so that the terminal can accurately determine the first random access resource type corresponding to the random access response message according to at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message. In this way, when the terminal does not support the first random access resource type, the terminal can accurately determine that the random access response message does not correspond to the message of this terminal, and will not send a random access message on the PRACH resource corresponding to the random access response message. Therefore, it is possible to avoid the failure of sending the random access message due to the terminal's inability to send a message on the PRACH resource, thereby reducing the number of failures of the terminal to perform RACH, and further improving the success rate of the terminal to perform RACH.
[0263] In a possible implementation manner, the resource type determination device 40 provided by an embodiment of the present application may further include: a configuration module, configured to configure a second PRACH resource for each terminal, where each second PRACH resource is used for each terminal to send a random access message corresponding to a random access response message, and each second PRACH resource corresponds to at least one seventh piece of information, and the seventh piece of information includes at least one of the following: terminal transmission capability; terminal duplex mode type; resource type.
[0264] In a possible implementation manner, the resource type determination device 40 provided by an embodiment of the present application may further include: a sending module, configured to send an eighth piece of information to each terminal, where each eighth piece of information is used to indicate the correspondence between the second PRACH resource configured for the corresponding terminal and at least one seventh piece of information.
[0265] The resource type determination device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network-side device or other devices other than network-side devices. Exemplarily, the terminal may include, but is not limited to, the types of network-side devices 12 listed above. Other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.
[0266] The resource type determination device provided in the embodiments of the present application can implement Figure 6 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.
[0267] As Figure 9 shown, the embodiments of the present application also provide a communication device 50, including a processor 51 and a memory 52. A program or instruction that can run on the processor 51 is stored on the memory 52. For example, when the communication device 50 is a terminal, when the program or instruction is executed by the processor 51, it implements each step of the above-mentioned resource type determination method embodiment and can achieve the same technical effects. When the communication device 50 is a network-side device, when the program or instruction is executed by the processor 51, it implements each step of the above-mentioned resource type determination method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.
[0268] The embodiments of the present application also provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps in the method embodiment as Figure 3 shown. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 10 is a schematic diagram of the hardware structure of a terminal for implementing the embodiments of the present application.
[0269] The terminal 600 includes, but is not limited to, at least some components such as a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610.
[0270] Those skilled in the art can understand that the terminal 600 may further include a power supply (such as a battery) for supplying power to each component. The power supply may be logically connected to the processor 610 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 10The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.
[0271] It should be understood that in the embodiments of the present application, the input unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042. The graphics processor 6041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. The other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, which will not be elaborated here.
[0272] In the embodiments of the present application, after receiving downlink data from a network-side device, the radio frequency unit 601 may transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 may send uplink data to the network-side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.
[0273] The memory 609 can be used to store software programs or instructions as well as various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 609 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synch link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 609 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
[0274] The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 610 either.
[0275] Among them, the processor 610 is used to obtain first information, which includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; and according to the first information, determine a first random access resource type corresponding to the random access response message.
[0276] An embodiment of the present application provides a terminal. Since the terminal can obtain first information including at least one of information corresponding to a first downlink channel, information corresponding to a second downlink channel, and information carried in a random access response message, and accurately determine a first random access resource type corresponding to the random access response message according to at least one of the information corresponding to the first downlink channel, the information corresponding to the second downlink channel, and the information carried in the random access response message, the terminal can accurately determine that the random access response message does not correspond to the message of this terminal when the first random access resource type is not supported, and will not send a random access message on the PRACH resource corresponding to the random access response message. Therefore, it is possible to avoid the failure of sending a random access message due to the terminal being unable to send a message on the PRACH resource, thereby reducing the number of failures of the terminal performing RACH, and further improving the success rate of the terminal performing RACH.
[0277] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.
[0278] An embodiment of the present application further provides a network-side device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement as Figure 6 shown in the steps of the method embodiment. This embodiment of the network-side device corresponds to the above-mentioned method embodiment of the network-side device. The various implementation processes and implementation manners of the above-mentioned method embodiment can be applied to this embodiment of the network-side device and can achieve the same technical effects.
[0279] Specifically, an embodiment of the present application further provides a network-side device. As Figure 11 shown, the network-side device 700 includes: an antenna 701, a radio frequency device 702, a baseband device 703, a processor 704, and a memory 705. The antenna 701 is connected to the radio frequency device 702. In the uplink direction, the radio frequency device 702 receives information through the antenna 701 and sends the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be sent and sends it to the radio frequency device 702. The radio frequency device 702 processes the received information and then sends it out through the antenna 701.
[0280] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 703, and the baseband device 703 includes a baseband processor.
[0281] The baseband device 703 may include, for example, at least one baseband board, and multiple chips are provided on the baseband board, such as Figure 11As shown, one of the chips, for example, a baseband processor, is connected to the memory 705 through a bus interface to call the program in the memory 705 and execute the network device operations shown in the above method embodiments.
[0282] The network-side device may further include a network interface 706, which is, for example, a Common Public Radio Interface (CPRI).
[0283] Specifically, the network-side device 700 in the embodiments of the present application further includes: instructions or programs stored on the memory 705 and executable on the processor 704. The processor 704 calls the instructions or programs in the memory 705 to execute Figure 8 the methods executed by the modules shown, and achieves the same technical effects. To avoid repetition, they are not elaborated here.
[0284] The embodiments of the present application further provide a readable storage medium, on which programs or instructions are stored. When the programs or instructions are executed by a processor, they implement each process of the above method embodiments for determining the resource type, and can achieve the same technical effects. To avoid repetition, they are not elaborated here.
[0285] Wherein, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.
[0286] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement each process of the above method embodiments for determining the resource type, and can achieve the same technical effects. To avoid repetition, they are not elaborated here.
[0287] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.
[0288] The embodiments of the present application further provide 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 each process of the above method embodiments for determining the resource type, and can achieve the same technical effects. To avoid repetition, they are not elaborated here.
[0289] The embodiment of the present application further provides a wireless communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the corresponding resource type determination method on the terminal side as described above, and the network-side device can be used to execute the steps of the corresponding resource type determination method on the network-side device side as described above.
[0290] It should be noted that in this document, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that 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 a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, the features described with reference to certain examples may be combined in other examples.
[0291] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.
[0292] The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit and scope protected by the claims of the present application, can also make many forms of embodiments, and these embodiments are all within the protection scope of the present application.
Claims
1. A method for determining a resource type, characterized in that, Including: The terminal obtains first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message, the first downlink channel being the downlink channel corresponding to the random access response message, and the second downlink channel being a downlink channel other than the first downlink channel; The terminal determines a first random access resource type corresponding to the random access response message according to the first information.
2. The method according to claim 1, wherein The information corresponding to the first downlink channel includes at least one of the following: The radio network temporary identifier (RNTI) corresponding to the first downlink channel; The information carried by the first downlink channel.
3. The method according to claim 2, characterized in that, The RNTI is determined by at least one of the following: The identifier of at least one first time unit, where at least one of the first time units corresponds to a first physical random access channel (PRACH) resource for transmitting a random access message corresponding to the random access response message, and the first time unit includes at least one of the following: system frame, time slot, orthogonal frequency division multiplexing (OFDM) symbol; The identifier of a first frequency domain unit corresponding to the first PRACH resource; The identifier of a first uplink carrier, where the first uplink carrier is the uplink carrier where the first PRACH resource is located; The identifier of a second random access resource type, where the second random access resource type is the random access resource type corresponding to the first PRACH resource; The identifier of a first uplink subband, where the first uplink subband is the uplink subband where the first PRACH resource is located; A first offset value.
4. The method according to claim 2, wherein The information carried by the first downlink channel includes second information carried by the first downlink channel; Wherein, the second information includes at least one of the following: The cyclic redundancy check (CRC) scrambling sequence corresponding to the first downlink channel; The resource information corresponding to the first downlink channel; The format of the first downlink control information (DCI) carried by the first downlink channel, where the first DCI is used to schedule the random access response message; The third information carried by the first DCI, where the third information is used to indicate the first random access resource type.
5. The method according to claim 4, characterized in that, The resource information includes at least one of the following: The control resource set (CORESET) corresponding to the first downlink channel; The demodulation reference signal (DMRS) scrambling sequence of the CORESET corresponding to the first downlink channel; The DMRS sequence of the CORESET corresponding to the first downlink channel; The DMRS ports of the CORESET corresponding to the first downlink channel; The search space corresponding to the first downlink channel; The first control channel element (CCE) of the search space corresponding to the first downlink channel, where the first CCE corresponds to the first downlink channel; The first aggregation level (AL) of the search space corresponding to the first downlink channel, where the first AL corresponds to the first downlink channel.
6. The method according to claim 1, wherein The information corresponding to the second downlink channel includes: The fourth information included in the second DCI carried by the second downlink channel, where the second DCI is a broadcast DCI or a group common DCI, and the fourth information is used to indicate the first random access resource type.
7. The method according to claim 1, characterized in that, The information corresponding to the second downlink channel includes: The fifth information included in the third DCI carried by the second downlink channel, where the fifth information includes at least one of the following: frame structure, time domain structure, time slot type, duplex mode, bandwidth part BWP, time domain resources.
8. The method according to claim 1, characterized in that, The information carried by the random access response message includes sixth information, where the sixth information is used to indicate the first random access resource type.
9. The method according to any one of claims 1 to 8, characterized in that The method further includes: The terminal obtains a second PRACH resource configured by the network side device, where the second PRACH resource is used to send a random access message corresponding to the random access response message, and the second PRACH resource corresponds to at least one seventh information, where the seventh information includes at least one of the following: Terminal transmission capability; Terminal duplex mode type; Resource type.
10. The method according to claim 9, wherein The terminal transmission capability includes at least one of the following: The duplex capability of the terminal; In the full duplex mode, the guard band capability of the terminal; In the full duplex mode, the transmit power capability of the terminal; In the full duplex mode, the interference suppression capability of the terminal; Wherein, in the full duplex mode, the terminal supports simultaneous signal transmission on the downlink sub-band and the uplink sub-band.
11. The method according to claim 10, wherein The duplex capability of the terminal includes at least one of the following: Whether the terminal supports the full duplex mode; Whether the terminal supports signal reception on the downlink sub-band in the uplink time unit; Whether the terminal supports signal transmission on the uplink sub-band in the downlink time unit.
12. The method according to claim 9, characterized in that, The terminal duplex mode type includes any one of the following: Full duplex mode, in which the terminal supports simultaneous signal transmission on the downlink sub-band and the uplink sub-band; Fully overlapping full duplex mode, in which the terminal supports simultaneous signal transmission on at least partially overlapping downlink sub-bands and uplink sub-bands; Sub-band non-overlapping full duplex mode, in which the terminal supports simultaneous signal transmission on non-overlapping downlink sub-bands and uplink sub-bands; Half duplex mode, in which the terminal does not support simultaneous signal reception and signal transmission; First duplex mode, in which the terminal supports signal reception on the downlink sub-band in the uplink time unit; Second duplex mode, in which the terminal supports signal transmission on the uplink sub-band in the downlink time unit.
13. The method according to claim 9, characterized in that, The resource type includes any one of the following: First resource type, which is used to characterize a type of time domain resource with an uplink time domain format; Second resource type, which is used to characterize a type of time domain resource with a first format and whose corresponding reference signal does not include a first reference signal, where the first format is a time domain format for full duplex transmission, and in the full duplex mode, the terminal supports simultaneous signal transmission on the downlink sub-band and the uplink sub-band, and the frequency domain resources corresponding to the time domain resources of the first format include the uplink sub-band and the downlink sub-band; The third resource type, where the third resource type is used to represent a type of time-domain resource with a time-domain format of the first format and a corresponding reference signal including the first reference signal; The fourth resource type, where the fourth resource type is used to represent a type of time-domain resource with a time-domain format of uplink or the first format and an interval between the corresponding time-domain resource and the time-domain resource corresponding to the first reference signal being greater than or equal to a first preset value.
14. The method according to claim 9, wherein The method further includes: The terminal receives eighth information from the network-side device, and the eighth information is used to indicate the correspondence between the second PRACH resource and at least one of the seventh information.
15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: The terminal determines a random access resource type corresponding to a random access message according to the first information, and the random access message corresponds to the random access response message.
16. A method for determining a resource type, characterized in that, Including: The network-side device indicates at least one first information to at least one of the terminals, and one first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message, where the first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; Wherein, each first information is used to determine a first random access resource type corresponding to a random access response message.
17. The method according to claim 16, wherein The method further includes: The network-side device configures a second PRACH resource for each terminal, and each second PRACH resource is used for each terminal to send a random access message corresponding to the random access response message. Each second PRACH resource corresponds to at least one seventh information, and the seventh information includes at least one of the following: Terminal transmission capability; Terminal duplex mode type; Resource type.
18. The method according to claim 17, wherein The method further includes: The network-side device sends eighth information to each terminal, and each eighth information is used to indicate the correspondence between the configured second PRACH resource of the corresponding terminal and at least one of the seventh information.
19. A resource type determination device, characterized in that, The resource type determination device includes: An acquisition module, configured to acquire first information, where the first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried in a random access response message, where the first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; A processing module, configured to determine a first random access resource type corresponding to a random access response message according to the first information acquired by the acquisition module.
20. The resource type determination device according to claim 19, wherein The information corresponding to the first downlink channel includes at least one of the following: The RNTI corresponding to the first downlink channel; The information carried by the first downlink channel.
21. The resource type determination device according to claim 20, characterized in that, The RNTI is determined by at least one of the following: Identifiers of at least one first time unit, where at least one of the first time units corresponds to a first PRACH resource, and the first PRACH resource is used to send a random access message corresponding to the random access response message. The first time unit includes at least one of the following: system frame, time slot, OFDM symbol; Identifier of a first frequency domain unit, where the first frequency domain unit corresponds to the first PRACH resource; Identifier of a first uplink carrier, where the first uplink carrier is the uplink carrier where the first PRACH resource is located; Identifier of a second random access resource type, where the second random access resource type is the random access resource type corresponding to the first PRACH resource; Identifier of a first uplink subband, where the first uplink subband is the uplink subband where the first PRACH resource is located; First offset value.
22. The resource type determination device according to claim 20, characterized in that, The information carried by the first downlink channel includes second information carried by the first downlink channel; Wherein, the second information includes at least one of the following: CRC scrambling sequence corresponding to the first downlink channel; Resource information corresponding to the first downlink channel; Format of a first DCI carried by the first downlink channel, where the first DCI is used to schedule the random access response message; Third information carried by the first DCI, where the third information is used to indicate the first random access resource type.
23. The resource type determination device according to any one of claims 19 to 22, characterized in that The obtaining module is further configured to obtain a second PRACH resource configured by a network-side device, where the second PRACH resource is used to send a random access message corresponding to the random access response message, and the second PRACH resource corresponds to at least one seventh information, and the seventh information includes at least one of the following: Terminal transmission capability; Terminal duplex mode type; Resource type.
24. The resource type determination device according to claim 23, characterized in that, The resource type determination device further includes: A receiving module, configured to receive eighth information from a network-side device, where the eighth information is used to indicate a correspondence between the second PRACH resource and at least one of the seventh information.
25. A resource type determination device, characterized in that, The resource type determination device includes: An indication module, configured to indicate at least one first information to at least one of the terminals. One first information includes at least one of the following: information corresponding to a first downlink channel, information corresponding to a second downlink channel, information carried by a random access response message. The first downlink channel is the downlink channel corresponding to the random access response message, and the second downlink channel is a downlink channel other than the first downlink channel; Wherein, each first information is used to determine a first random access resource type corresponding to a random access response message.
26. The resource type determination device according to claim 25, characterized in that, The resource type determination device further includes: A configuration module, configured to configure a second PRACH resource for each terminal. Each second PRACH resource is used for each terminal to send a random access message corresponding to the random access response message. Each second PRACH resource corresponds to at least one seventh information, and the seventh information includes at least one of the following: Terminal transmission capability; Terminal duplex mode type; Resource type.
27. The method according to claim 26, wherein The resource type determination device further includes: A sending module, configured to send an eighth piece of information to each of the terminals, where each of the eighth pieces of information is used to indicate a correspondence between the configured second PRACH resource of the corresponding terminal and at least one of the seventh pieces of information.
28. A terminal, characterized in that, It includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the resource type determination method according to any one of claims 1 to 15 are implemented.
29. A network-side device, characterized in that, It includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the resource type determination method according to any one of claims 16 to 18 are implemented.
30. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, the resource type determination method according to any one of claims 1 to 15 is implemented, or the steps of the resource type determination method according to any one of claims 16 to 18 are implemented.