Information transmission and reception methods and devices

Abstract

An embodiment of the present invention provides an information transmission and reception method and apparatus. The apparatus includes a first receiving unit, which receives one or more second configuration information transmitted by a network device, one second configuration information comprising one or more first configuration information, one first configuration information comprising first information for setting a feature combination and / or second information for setting a random access preamble sequence and / or third information for setting RO group(s) and / or fourth information for setting RO(s) and / or fifth information for setting RO(s).

Description

Technical Field

[0001] The present invention relates to the technical field of communications.

Background Art

[0002] Coverage is one of the important factors that operators consider in the commercialization process of cellular communication networks, and it directly affects service quality, capital expenditure (CAPEX), and operating cost (OPEX). In most of the scenarios actually deployed, the uplink performance may become a bottleneck. For example, currently, there are quite a few new vertical use cases with high uplink traffic, such as video uploads. In Release 17 (Rel-17), the 3GPP (3rd Generation Partnership Project) is discussing the coverage enhancement of some bottleneck channels (including the physical uplink shared channel PUSCH, the physical uplink control channel PUCCH, Msg3, etc.). However, not all the needs for coverage enhancement have been solved. For example, the physical random access channel PRACH is also one of the bottleneck channels, but the coverage enhancement of PRACH remains unresolved. Therefore, in the work of NR coverage enhancement in Rel-18, the coverage enhancement of PRACH is one of the main goals.

[0003] Note that the introduction of the above background art is for clearly and completely explaining the technical solution of the present invention and for facilitating the understanding of those skilled in the art. These technical solutions should not be construed as well-known to those skilled in the art just because they are described in the background art of the present invention.

Summary of the Invention

Problems to be Solved by the Invention

[0004] One scheme to enhance PRACH coverage is to support PRACH repetition. For example, a terminal device can send multiple PRACHs carrying the same random access preamble sequence in a single random access attempt (RACH attempt or random access channel attempt). Accordingly, network equipment can perform joint detection on random access preamble sequences carried by different PRACHs. This allows network equipment to successfully detect random access preamble sequences sent by terminal devices even when transmission loss between terminal devices and base stations is relatively large (e.g., when the distance is relatively long or when obstacles are present), thereby expanding PRACH coverage and achieving the effect of enhancing PRACH coverage. However, there is currently no concrete solution for how to support 4-step random access type PRACH repetition.

[0005] To solve at least one of the above-mentioned problems, embodiments of the present invention provide an information transmission and reception method and apparatus. [Means for solving the problem]

[0006] According to one aspect of the embodiment of the present invention, an information receiving device is provided, which is applied to a terminal device, and it is, A first receiving unit that receives one or more second configuration information transmitted by a network device, wherein one second configuration information comprises one or more first configuration information, and one first configuration information comprises first information for setting a feature combination, and / or second information for setting a random access preamble sequence, and / or third information for setting an RO group(s), and / or fourth information for setting an RO(s), and / or fifth information for setting an RO(s).

[0007] According to another aspect of the embodiments of the present invention, an information transmission device is provided which is applied to network equipment, and it is A first transmission unit that transmits one or more second configuration information to a terminal device, wherein one second configuration information includes one or more first configuration information, and one first configuration information includes first information for setting a feature combination, and / or second information for setting a random access preamble sequence, and / or third information for setting an RO group(s), and / or fourth information for setting an RO(s), and / or fifth information for setting an RO(s).

[0008] According to yet another aspect of the embodiments of the present invention, a communication system is provided which includes terminal equipment and / or network equipment in the aforementioned aspect. [Effects of the Invention]

[0009] The advantageous effects of the embodiments of the present invention are at least as follows: By providing a method for supporting PARCH repetition, PARCH coverage can be expanded and uplink coverage can be enhanced, thereby improving the quality of service of the network and reducing capital expenditures (CAPEX) and operating expenses (OPEX).

[0010] Specific embodiments of the present invention will be disclosed in detail by referring to the following description and drawings, and will show embodiments in which the principles of the present invention can be adopted. However, the embodiments of the present invention are not limited to these in scope. Embodiments of the present invention may include various changes, modifications and substitutions as long as they are within the scope of the attached claims.

[0011] Furthermore, features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or used to replace features in other embodiments.

[0012] When used herein, terms such as “contains / have” refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawing]

[0013] Elements and features described in one drawing or one embodiment of the present invention can be combined with elements and features shown in one or more other drawings or embodiments. Furthermore, similar reference numerals in the drawings are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in multiple embodiments.

[0014] The included drawings are used to provide a further understanding of embodiments of the present invention, and these drawings constitute part of this specification and are used to illustrate embodiments of the present invention and to explain the principles of the present invention together with the textual description. Also, as is obvious, the drawings described below are merely for illustrating some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort. [Figure 1] This figure shows a communication system in an embodiment of the present invention. [Figure 2A] This is a diagram showing a random access procedure. [Figure 2B] This is a diagram showing a random access procedure. [Figure 3] This figure shows an information transmission and reception method in an embodiment of the present invention. [Figure 4] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 5] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 6] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 7]A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 8] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 9] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 10] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 11] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 12] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 13] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 14] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 15] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 16] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 17] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 18] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 19] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 20] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 21] A diagram showing the mapping of the SSB-RO / RO group in an embodiment of the present invention. [Figure 22]This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 23] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 24] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 25] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 26] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 27] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 28] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 29] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 30] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 31] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 32] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 33] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 34] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 35] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 36] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 37]This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 38] This figure shows the mapping of SSB-RO / RO groups in an embodiment of the present invention. [Figure 39] This figure shows an information transmission and reception method in an embodiment of the present invention. [Figure 40] This figure shows a signal transmission and reception device according to an embodiment of the present invention. [Figure 41] This figure shows a signal transmission and reception device according to an embodiment of the present invention. [Figure 42] This figure shows a network device in an embodiment of the present invention. [Figure 43] This figure shows a terminal device in an embodiment of the present invention. [Figure 44] This figure shows a random access procedure in an embodiment of the present invention. [Figure 45] This figure shows an information receiving method in an embodiment of the present invention. [Figure 46] This figure shows an information transmission method according to an embodiment of the present invention. [Modes for carrying out the invention]

[0015] The aforementioned and other features of the present invention will become clear by referring to the attached drawings and the following description. While the specification and drawings disclose specific embodiments of the present invention, these represent only a limited number of embodiments in which the principles of the present invention can be employed. It should be understood that the present invention is not limited to the described embodiments, and that it includes all modifications, variations, and substitutions of the claims.

[0016] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may refer to a network conforming to any communication standard such as LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (registered trademark) (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0017] Furthermore, communication between devices in a communication system may be carried out according to any stage of communication protocol, and may include, but is not limited to, the following communication protocols: namely, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communication protocols.

[0018] In embodiments of the present invention, the term "network device" refers, for example, to a device in a communication system that connects terminal devices to a communication network and provides services to said terminal devices. Network devices may include, but are not limited to, the following: base stations (BS), access points (AP), transmission and reception points (TRP), broadcast transmitters, mobile management entities (MME), network gateways, servers, radio network controllers (RNC), base station controllers (BSC), etc.

[0019] Base stations may include, but are not limited to, Node B (NodeB or NB), Evolutionary Node B (eNodeB or eNB), 5G base stations (gNB), and may also include RRH (Remote Radio Head), RRU (Remote Radio Unit), relay, or low-power nodes (e.g., femto, pico). The term “base station” may also include some or all of these functions, and each base station can provide communication coverage to a specific geographic area. The term “cell” may refer to a base station and / or the area it covers, depending on the context in which the term is used. Cells and base stations are interchangeable, as long as it does not cause confusion.

[0020] In embodiments of the present invention, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer to devices that access a communication network via network equipment and receive services from the network. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), station, etc.

[0021] User devices may include, but are not limited to, the following: cellular phones, PDAs (Personal Digital Assistants), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smartwatches, digital cameras, etc.

[0022] Furthermore, in scenarios such as IoT (Internet of Things), user devices may also be monitoring and / or measuring devices or equipment, which may include, but are not limited to, the following: machine-type communication (MTC) terminals, in-vehicle communication terminals, D2D (device-to-device) terminals, M2M (machine-to-machine) terminals, etc.

[0023] Furthermore, the terms “network side” or “network equipment side” refer to the network side, which may be a base station or include one or more network devices as described above. The terms “user side” or “terminal side” or “terminal equipment side” refer to the user or terminal side, which may be a UE or include one or more terminal devices as described above. Unless otherwise specified, “equipment” may refer to network equipment or terminal equipment.

[0024] The following describes a scenario of an embodiment of the present invention through examples, but the present invention is not limited thereto.

[0025] Figure 1 shows a communication system in an embodiment of the present invention, illustrating a case where terminal equipment and network equipment are used as examples. As shown in Figure 1, the communication system 100 may include network equipment 101 and terminal equipment 102 and 103. For convenience, only one network device and two terminal devices are used as examples in Figure 1, but embodiments of the present invention are not limited to these.

[0026] In embodiments of the present invention, existing business operations (services / traffic) or future business operations can be transmitted between network equipment 101 and terminal equipment 102 and 103. For example, these operations may include, but are not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), URLLC (Ultra-Reliable and Low-Latency Communication), etc.

[0027] Of these, terminal device 102 can transmit data to network device 101, for example, using a licensed or unlicensed transmission method. Network device 101 can receive data transmitted by one or more terminal devices 102 and provide feedback to terminal devices 102, such as acknowledgment (ACK) / non-acknowledgment (NACK) information. Based on the feedback information, terminal devices 102 can determine the end of the transmission process, start transmitting new data, or retransmit data.

[0028] Although Figure 1 shows that both terminal devices 102 and 103 are within the coverage of network device 101, the present invention is not limited to this. Neither of the two terminal devices 102 and 103 is located within the coverage of network device 101, or one terminal device 102 may be located within the coverage of network device 101 while the other terminal device 103 is located outside the coverage of network device 101.

[0029] In embodiments of the present invention, the upper-layer signaling may be, for example, wireless resource control (RRC) signaling, and the RRC signaling may include, for example, an RRC message, and may include, for example, a master (main) information block (MIB), system information, a dedicated RRC message; an RRC information element (RRC IE); or an information field contained in an RRC message or RRC information element (or an information field contained in an information field). The upper-layer signaling may further include, for example, medium access control (MAC) signaling (or referred to as a MAC control element (MAC CE)). However, the present invention is not limited to these.

[0030] In the embodiments of the present invention, "multiple" refers to at least two, or two or more.

[0031] In embodiments of the present invention, predefined means that it is specified in the protocol or can be determined according to the rules specified in the protocol and does not require additional configuration. Configuration / instruction (which is interchangeable in some cases) means that network equipment is configured / instructed directly or indirectly by upper-layer signaling and / or physical layer signaling. Physical layer signaling refers to, for example, control information (DCI) carried by a physical control channel or control information carried by a sequence, but is not limited to these, and may also be configured / instructed by introducing upper-layer parameters into upper-layer signaling, where upper-layer parameters refer to information fields and / or information elements (IE) in upper-layer signaling. For example, information fields (or information fields contained in information fields) included in RRC IE, RRC messages, or RRC information elements may also be referred to as upper-layer parameters. However, the present invention is not limited to these.

[0032] NR defines two types of random access procedures (RAs): 4-step RA types and 2-step RA types. These two RA types include CBRA and CFRA, respectively. In some cases, a 2-step RA type can fall back to or switch to a 4-step RA type.

[0033] Of these, the 4-step RA type competition-based random access (CBRA with 4-step RA type or 4-step CBRA) requires at least four steps and may also be called 4-step random access (4-step RA or 4-step RACH). 4-step random access involves two information interactions between network equipment and terminal equipment, and Figure 2A shows a diagram of the 4-step random access procedure. As shown in Figure 2A, in Msg1 (or MSG1), the terminal equipment sends a random access preamble, and after sending Msg1, the terminal equipment monitors the response from the network equipment (random access response, RAR) in one window (egRAR window). In Msg2 (or MSG2), the network device sends a random access response; in Msg3 (or MSG3), the terminal device sends an uplink message on the allocated uplink resource (or, to put it another way, sends Msg3 using the uplink grant (UL grant) scheduled in the random access response); and in Msg4 (or MSG4), the network device sends a conflict resolution message back to the terminal device that successfully accessed the network. If the terminal device does not receive Msg2 or the corresponding RAR after sending Msg1, or if conflict resolution is unsuccessful after the transmission or retransmission of Msg3, the UE returns to transmitting Msg1.

[0034] In embodiments of the present invention, Msg2 in CBRA may be referred to as RAR, but the present invention is not limited thereto.

[0035] Non-conflict-based random access with a 4-step RA type (CFRA with 4-step RA type) requires at least two or three steps (depending on whether Msg0 is included), as shown in Figure 2B. Of these, Msg0 (MSG0) is when the network device allocates a dedicated random access preamble and / or PRACH resource for the terminal device; Msg1 (or MSG1) is when the terminal device sends a random access preamble, and after sending Msg1 the terminal device monitors for a response from the network device (random access response, RAR) within one window (e.g., the RAR window); and Msg2 (or MSG2) is when the network device sends a random access response. Upon receiving the random access response, the terminal device terminates the random access procedure. Currently, the Rel-17 research introduces a framework for setting feature combinations and additional RACH configurations to support the four features related to random access. A feature combination may include one or more features, and when it includes only one, it may be directly referred to as a feature. The four features mentioned above include small data transmission (SDT), network slicing, low-capacity user equipment or capacity reduction UE (Redcap UE), and Msg3 repetition. For example, one Redcap UE can perform SDT (the corresponding feature combination includes at least RedCap and SDT), and one Redcap UE can perform high-priority tasks corresponding to slicing (the corresponding feature combination includes at least RedCap and Slicing).

[0036] Currently, there are no concrete solutions for how to support 4-step random access PRACH repetitions, such as how to configure the random access preamble and / or RO for PRACH repetitions, or how to determine the transmit power for PRACH transmissions in PRACH repetitions.

[0037] The inventor proposed the following: To support PRACH repetition, PRACH repetition can be introduced into a feature combination as a feature, and for random access procedures associated with different features or feature combinations (feature / feature combination), during the execution of the random access procedure, terminal devices can send PRACH transmissions to network devices using random access resources corresponding to the feature or feature combination, and different random access preamble sequences and / or ROs may be configured for different feature combinations so that network devices can distinguish between different feature combinations and send appropriate / matched response information (e.g., RAR) to terminal devices. Currently, the BWP configuration includes an additional random access channel configuration list (additionalRACH-ConfigList-r17), which carries the configuration information for random access preambles for different feature combinations.

[0038] However, the inventor discovered the following: namely, the random access settings for feature combinations have at least the following problems.

[0039] Problem 1: When configuring a random access resource for the same feature combination, if the same feature combination may contain different first message repetition counts, it is necessary to distinguish between different first message repetition counts using preambles and / or PRACH occasions (in other words, the preambles and / or PRACH occasions corresponding to different first message repetition counts are different (there is no intersection)). On the one hand, this allows network devices to detect and receive Msg1 based on different first message repetition counts with relatively low complexity, and on the other, more importantly, after receiving Msg1, the network device can determine that the terminal device will send the last PRACH occasion corresponding to Msg1 in a single RACH attempt, and then send the RAR to the terminal device by determining the RA-RNTI and RAR window based on that PRACH occasion. Conversely, if different transmission counts are not distinguished by preambles and / or PRACH occasions, network devices may experience increased detection and reception complexity, and may be unable to accurately employ RA-RNTI within a suitable time range to send RARs to terminal devices, potentially leading to random access failures.

[0040] Problem 2: The random access setting for feature combinations includes ssb-SharedRO-MaskIndex, which indicates that the allowed ROs setting for use in one (SSB-to-RO) third mapping cycle is for ROs of one feature combination. In one mapping cycle, each different SSB(index) is associated with N ROs, of which 1 ≤ N ≤ 8. Assuming that a terminal device has only one PRACH transmission per RACH attempt, any one SSB(index) within a mapping cycle is associated with the same number of at least one PRACH occasion, so a terminal device can select any one SSB(index) and perform a PRACH transmission for one RACH attempt within any one mapping cycle. However, the above method does not apply in the case of PRACH repetition. For example, in the case of PRACH repetition, terminal equipment may need to use multiple ROs in a single RACH attempt, and these multiple ROs may need to span mapping cycles. For example, the number of overlaps is four, and within each (SSB-to-RO) mapping cycle, one SSB(index) is associated with only one PRACH occasion. Also, for example, in the case of PRACH repetition, it may be necessary to introduce a mapping method between new SSB(index) and PRACH occasions, but this cannot be configured by specifying which PRACH occasions are allowed to be used within a single (SSB-to-RO) mapping cycle.

[0041] The following describes various embodiments of the present invention in conjunction with the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0042] <Example of the first side view> An embodiment of the present invention provides an information transmission and reception method, which will be described from the perspective of the terminal equipment.

[0043] Figure 3 shows an information transmission and reception method in an embodiment of the present invention. As shown in Figure 3, the method includes the following, namely, 301: The terminal device transmits the first message of a random access procedure on multiple first physical random access channel opportunities (PRACH occasions, RO); and 302: The terminal device receives a second message in response to the first message after the last of the multiple first PRACH occasions.

[0044] Although Figure 3 above illustrates an example of the present invention, the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description, without being limited to the description in Figure 3.

[0045] In the following embodiment, PRACH transmission may be replaced with PRACH transmission, PRACH timing may be replaced with PRACH opportunity, PRACH transmission opportunity, RACH timing / opportunity, RACH transmission opportunity (PRACH occasion, PRACH transmission occasion, RACH occasion), RO, PRACH resource, or time-domain resource for transmitting PRACH. The first message is Msg1, which may be replaced with PRACH or preamble or random access preamble or preamble sequence, represents the target to be transmitted by RO, random access attempt (RACH attempt) may be replaced with preamble attempt or Msg1 attempt (Msg1 attempt), and PRACH repetition may be replaced with Msg1 duplicate or multiple PRACH transmissions. The second message is Msg2, which is used to carry the random access response RAR.

[0046] In some embodiments, the multiple first ROs belong to one RO group and / or one set of random access resources. The last first RO is the last RO in the RO group. The RO group belongs to the set of random access resources. A second RO means an RO that a network device sets up for a terminal device and / or on which a terminal device can send the first message, and in one RACH trial, the second RO includes the multiple first ROs, and a first RO means an RO that actually sends the first message, and further includes ROs that do not actually send the first message. The set of random access resources will be described later.

[0047] In some embodiments, it is necessary to define features for first message duplication in order to support first message duplication. One feature for the number of first message duplications may include multiple different first message duplication counts, or one feature for the number of first message duplications may include only one first message duplication count.

[0048] In some embodiments, the characteristics of the first message overlap are referred to as, for example, the first message overlap, or the number of first message overlaps.

[0049] In some embodiments, one feature is defined for the first message overlap, and this feature includes all first message overlap counts (e.g., 2, 4, 8). Alternatively, multiple features are defined for the first message overlap, each containing one first message overlap count; for example, if three are defined, they each contain 2, 4, and 8.

[0050] In some embodiments, when one feature is defined for a first message overlap, one feature combination containing that feature includes multiple / all first message overlap counts. When multiple features are defined for a first message overlap, and each of the different features includes one first message overlap count, one feature combination containing one of those features includes only one first message overlap count, and one feature combination containing multiple of those features includes only multiple first message overlap counts.

[0051] In some embodiments, a single feature combination may include at most one feature relating to the first message overlap. However, the present invention is not limited thereto.

[0052] In some embodiments, the feature for first message duplication can be combined with one or more of the four types of features and / or other features described above. For example, a feature for setting first message duplication is added (supplemented) to FeatureCombination-r17.

[0053] In some embodiments, the random access resource set is configured by one or more pieces of information in FeatureCombinationPreambles, which include first information for configuring feature combinations. To support PRACH repetition, the feature combination configured by the first information includes the first message repetitions and / or one or more first message repetition counts, and / or the one or more first message repetition counts include the random access procedure and / or the random access attempts corresponding to the first message and / or the first message repetition counts adopted by the first message. When the feature combination configured by the first information includes first message repetitions (msg1-Repetitions), the first message repetitions are also considered a feature and may be configured by FeatureCombination-r17, for example, the first information may include optional redCap, smallData, nsag, msg3-Repetitions, and a newly added feature type msg1-Repetitions, and / or one or more first message repetition counts may be configured using the first information.

[0054] In some embodiments, the number of first message repetitions may also be referred to as the PRACH repetition number (or Msg1 repetition number or the number of Msg1 repetition), the number of multiple PRACH transmissions, or simply the number of repetitions.

[0055] For example, the first message repetition count refers to the number of PRACHs or preamble sequences sent in a single RACH attempt. Alternatively, the first message repetition count refers to the maximum number of corresponding PRACH transmissions or preamble sequence transmissions in a single RACH attempt, and / or the number of corresponding ROs in a single RACH attempt (e.g., the number of corresponding second ROs), and / or the number of ROs selected for a single RACH attempt, and / or the number of ROs included in an RO group selected for a single RACH attempt, and / or the number of ROs included in an RO group to which one or more ROs selected for a single RACH attempt belong.

[0056] For example, the number of times the first message is repeated may be 2, 4, or 8. However, it is not limited to these, and may be 16 times, for example.

[0057] In some embodiments, the actual number of PRACH or preamble sequence transmissions / transmissions in a single RACH trial of a terminal device is less than or equal to the number of first message overlaps, or the quantity of first ROs in a single RACH trial is less than or equal to the quantity of second ROs in the same RACH trial.

[0058] In some embodiments, 301 and 302, the terminal device sends the first message of the random access procedure at multiple first ROs of multiple second ROs in a single RACH trial, and receives the second message after the last second RO of the multiple second ROs (the last first RO of the multiple first ROs mentioned above is the second RO (when the last second RO is the first RO), or receives it before the second RO (when the last second RO is not the first RO)). For example, in one window (RAR window), the terminal device attempts to detect a DCI format 1_0 having a corresponding CRC scrambled by the corresponding RA-RNTI (the DCI format 1_0 is used to schedule a PDSCH carrying the RAR), and the window begins after the last second RO. The starting position of the window is specifically, for example, as follows: that is, the first symbol of the earliest CORESET for receiving PDCCH for the Type1-PDCCH CSS set configured for the terminal device, that is, at least one symbol after the last symbol of the last RO (last second RO) corresponding to the PRACH transmission (or PRACH transmission(s), or the RACH attempt, or PRACH transmission(s) of the RACH attempt), of which the symbol duration corresponds to the SCS corresponding to the Type1-PDCCH CSS set (or the PDCCH, or active downlink BWP).

[0059] Of these, the corresponding RA-RNTI mentioned above is also determined based on the last second RO, for example, the corresponding RA-RNTI is the RA-RNTI associated with the last second RO. Specifically, for example, the RA-RNTI associated with the last (valid) RO (the last second RO in the RO group) in one RO group (including the multiple second ROs mentioned above) for Msg 1 repetition is calculated based on the following formula:

[0060] RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id Accordingly, the network device sends the DCI format 1_0 message to the terminal device via the aforementioned window, thereby sending a second message to the terminal device that carries the RAR file.

[0061] In some embodiments, the random access resource set includes RO groups corresponding to one or more first message repetition counts. The number of ROs in any one of the RO group(s) corresponding to one first message repetition count is equal to the first message repetition count, or the number of ROs in any one of the RO group(s) corresponding to one first message repetition count is greater than or equal to the first message repetition count.

[0062] In some embodiments, the MAC layer of the terminal device determines the corresponding random access resource set based on the initial configuration information. Considering the applicability of each feature, it is necessary to determine the availability of random access resources and select a random access resource set based on the applicable features.

[0063] In some embodiments, the first message repetition and / or the number of first message repetitions can be applied to the random access procedure. The terminal device selects one or more random access resource sets. The one or more random access resource sets are available for the first message repetition and / or the number of repetitions for Msg1. At least two of the multiple random access resource sets are available for different numbers of first message repetitions. For a single random access attempt or a single Msg1 transmission, the terminal device selects ROs from one random access resource set available for the number of first repetitions employed by the random access attempt and / or Msg1 transmission.

[0064] In some embodiments, the terminal device determines, based on at least one of one or more first RSRP thresholds, whether the first message overlap and / or the number of first message overlaps can be applied to the random access procedure and / or the random access trial corresponding to the first message and / or the first message. Of these, at least one of the one or more first RSRP thresholds includes the maximum value of the one or more first RSRP thresholds. The terminal device also determines, based on at least one of one or more first RSRP thresholds, the number of first message overlaps to be employed by one random access procedure and / or one random access trial and / or one Msg 1 transmission.

[0065] In some embodiments, the terminal device is further required to select ROs from the random access resource set, which includes, namely, the terminal device selecting the RO group from the random access resource set, or selecting one or more ROs within the RO group from the random access resource set. The one or more ROs include the first RO. The first RO refers to the RO in the RO group that has the smallest first RO index, second RO index, or third RO index, and / or the first RO in the time domain, and determines the other ROs based on the first RO and the mapping relationship described below. The first RO index, second RO index, and third RO index will be described later.

[0066] For example, selecting the RO group from the random access resource set includes selecting the RO group(s) in the random access resource set that correspond to the random access procedure and / or the random access attempts and / or the number of first message repetitions adopted by the first message.

[0067] For example, selecting one or more ROs in the RO group from the random access resource set includes, namely, selecting one or more ROs in the RO group from the RO group(s) corresponding to the random access procedure and / or the random access attempts and / or the number of first message repetitions adopted by the first message in the random access resource set.

[0068] The following explains how to configure random access resources.

[0069] In some embodiments, Figure 45 shows an information receiving method in an embodiment of the present invention. As shown in Figure 45, the method includes the following, namely, 4501: Receives one or more secondary configuration information transmitted by a network device, one secondary configuration information comprising one or more primary configuration information, one primary configuration information comprising primary information for configuring feature combinations and / or secondary information for configuring random access preamble sequences and / or third information for configuring RO group(s) and / or fourth information for configuring RO(s) and / or fifth information for configuring RO(s). The one or more secondary configuration information (RACH-ConfigCommon) is used to configure / define random access parameters specific to the cell. One secondary configuration information comprises one or more primary configuration information (used to configure feature combinations and / or random access resource sets corresponding to the feature combinations), one primary configuration information comprising primary information for configuring feature combinations and / or second information for configuring random access preamble sequences and / or third information for configuring RO group(s) and / or fourth information for configuring RO(s) and / or fifth information for configuring RO(s) (ssb-SharedRO-MaskIndex-r17).

[0070] In some embodiments, one first configuration information contains one such first information, and one first information is used to configure one feature combination. The relationship between the feature combination and the number of first message repetitions is explained below.

[0071] In some embodiments, for a given feature combination, the first message overlap and / or the number of first message overlaps may or may not be included, and / or may include a maximum of one first message overlap or support a maximum of only one first message overlap (e.g., 2, 4, or 8), or may include multiple first message overlaps or support multiple first message overlaps. When supporting one first message overlap, the random access resource may be configured using the same method as the method for supporting a maximum of one first message overlap in the embodiments described later. When supporting multiple first message overlaps, the random access resource may be configured using the same or a different method as the method for supporting a maximum of one first message overlap in the embodiments described later. Furthermore, network equipment may be configured to include one or more first message overlaps for terminal equipment for a given feature combination.

[0072] In some embodiments, for a feature combination including multiple first message repetition counts, the random access preamble sequences corresponding to two of the multiple first message repetition counts are the same or different, and / or the ROs corresponding to two of the multiple first message repetition counts are the same or different. Of these, the ROs corresponding to two first message repetition counts corresponding to different random access preamble sequences are the same or different. The ROs corresponding to two first message repetition counts corresponding to the same random access preamble sequence are different. Being the same means that there is a common part, or that they are completely the same or partially the same, and being different means that there is no common part or that they are completely different.

[0073] In some embodiments, ROs corresponding to one first message repetition count include RO(s) included in the RO group(s) corresponding to the first message repetition count.

[0074] In some embodiments, for a single feature combination including multiple first message repetition counts, the same ROs are included in RO groups corresponding to different first message repetition counts, or the ROs included in RO groups with relatively small first message repetition counts are a subset of the ROs included in RO groups with relatively large first message repetition counts, or the ROs included in RO groups with relatively large first message repetition counts are a subset of the ROs included in RO groups with relatively small first message repetition counts.

[0075] In some embodiments, for a single feature combination containing multiple first message repetition counts, the ROs corresponding to different first message repetition counts are the same, or the ROs corresponding to relatively small first message repetition counts are a subset of the ROs corresponding to relatively large first message repetition counts, or the ROs corresponding to relatively large first message repetition counts are a subset of the ROs corresponding to relatively small first message repetition counts.

[0076] The following explains how to configure random access resources (random access preamble sequences, ROs, or RO groups) in conjunction with the second through fifth pieces of information.

[0077] In some embodiments, the second information is used to set a random access preamble sequence corresponding to a feature combination set by the first information. For a feature combination containing multiple first message repetition counts, the second information sets a corresponding random access preamble sequence for each different first message repetition count in the feature combination, thereby allowing the random preamble sequence to distinguish between different first message repetition counts. However, embodiments of the present invention are not limited thereto, or it may not be necessary to consider the first message repetition count, in which case the first information sets a random access preamble sequence for a single feature combination.

[0078] In some embodiments, the second information includes one or more first information elements (IEs), the first IEs being used to set up a random access preamble sequence corresponding to one first message repetition count, or the second information includes one or more first information fields, the first information fields being used to set up a random access preamble sequence corresponding to one first message repetition count.

[0079] In some embodiments, for a given feature combination, it is not necessary to set an RO group or RO, and when distinguishing between single PRACH transmission and multi-PRACH transmission (PRACH repetition transmission) and PARCH overlap transmission, different first message overlap counts are distinguished using only a random access preamble set by the second information.

[0080] In some embodiments, one feature combination may be indicated by RO group or RO, which will be explained in detail below.

[0081] In some embodiments, the third information is used to set RO group(s) corresponding to the feature combination set by the first information, thereby enabling the distinction of different first message repetition counts using the RO groups. However, the embodiments of the present invention are not limited thereto, and the first message repetition count does not need to be considered, in which case the third information sets RO groups for one feature combination.

[0082] In some embodiments, for a feature combination including multiple first message repetition counts, the third information sets up corresponding RO groups for each different first message repetition count in the feature combination, for example, the third information includes one or more second IEs, the second IEs are used to set up corresponding RO groups for one first message repetition count, or the third information includes one or more second information fields, the second information fields are used to set up corresponding RO groups for one first message repetition count.

[0083] In some embodiments, the third information sets RO groups based on the first duplicate count and / or the first RO group index and / or the second RO group index and / or the first group index and / or the first RO index and / or the second RO index and / or the third RO index and / or the second group index (of which the first RO group index and / or the second RO group index and / or the first group index and / or the first RO index and / or the second RO index and / or the third RO index and / or the second group index may be sequentially numbered from 0 or 1, respectively), and / or the third information sets RO group(s) for one (per) period or mapping cycle.

[0084] In some embodiments, the first duplicate count is used to set up RO groups for one feature combination and / or one first message duplicate count for one feature combination. The first duplicate count is the same as or different from the first message duplicate count supported by the feature combination.

[0085] In some embodiments, the first duplicate count is the first message duplicate count included in the feature combination set by the first information. For a feature combination containing multiple first message duplicate counts, the third information sets RO groups corresponding to each first message duplicate count based on the multiple first message duplicate counts. The number of ROs included in one (arbitrary) RO group in the RO groups corresponding to one first message duplicate count is equal to the first message duplicate count.

[0086] In some embodiments, the first duplicate count is predefined. For example, the first duplicate count is the maximum value of the first message duplicate counts set in the second setting information (in one or more first setting information), and / or the first message duplicate count corresponding to the minimum first RSRP threshold set by the seventh information, and / or the first message duplicate count corresponding to the first first RSRP threshold set by the seventh information, and / or the maximum value of the first message duplicate counts included in the feature combination set by the first information, or equal to 2, 4, or 8.

[0087] In some embodiments, the first duplicate count is set / instructed (directly) by a sixth piece of information for setting the first duplicate count (e.g., carried by BWP-UplinkCommon or RACH-ConfigCommon), and the first duplicate count indicated by the fourth piece of information may be 2, 4, or 8, etc.

[0088] In some embodiments, the first duplicate count is set / indicated by seventh information for setting a first RSRP threshold for the first message duplicate, which is set and carried by BWP, and the terminal device receives seventh information for setting one or more first RSRP thresholds, at least one of the one or more first RSRP thresholds is used by the terminal device to determine whether the first message duplicate and / or one first message duplicate count applies to one random access procedure, and / or at least one of the one or more first RSRP thresholds is used by the terminal device to determine the first message duplicate count to be employed by one random access attempt or one Msg1 transmission.

[0089] In some embodiments, the setting of RO groups based on the first repetition count by the third information means the following: the third information indicates the RO group(s) corresponding to the first repetition count, and the number of ROs in one of the RO group(s) from the first RO group(s) is equal to the first repetition count. The number of ROs in one (arbitrary) RO group corresponding to one first repetition count is equal to the first repetition count. The terminal device determines the association between RO groups and / or SSBs and RO groups based on the first repetition count and other information in the second setting information, or based on the first repetition count, other information in the second setting information and the eighth information. Alternatively, the terminal device determines the RO groups corresponding to one or more first message repetition counts included in the feature combination set by the first information, based on the RO group(s) corresponding to the first repetition count.

[0090] In some embodiments, the first RO group index is used to uniquely identify one RO group within a single period or mapping cycle. The period is either the first, second, third, or fourth period, and the mapping cycle is either the first or second mapping cycle. These periods and mapping cycles will be described later. The first RO group index represents the sequential number of RO group(s) associated with one SSB within a single period or mapping cycle, or the sequential number of RO group(s) within the period or mapping cycle. The number of ROs included in one of the RO group(s) is equal to the first repetition count.

[0091] In some embodiments, the second RO group index is used to uniquely identify one RO group within a set of RO groups within a period or mapping cycle. The period is the first, second, third, or fourth period, and the mapping cycle is the first or second mapping cycle. These periods and mapping cycles will be described later. The second RO group index represents the sequential number of the RO group(s) associated with one SSB within the set of RO group(s), or the sequential number of the RO group(s) within the set of RO group(s). The number of ROs included in one of the RO group(s) is equal to the first repetition count.

[0092] In some embodiments, the first group index is used to uniquely identify a set of RO group(s) within a period or mapping cycle. The period is either the first, second, third, or fourth period, and the mapping cycle is either the first or second mapping cycle. These periods and mapping cycles will be described later. The first group index represents the sequential number of a set of RO group(s) associated with a single SSB within the period or mapping cycle, or the sequential number of a set of RO group(s) within the period or mapping cycle. The number of ROs included in one of the RO group(s) is equal to the first repetition count. The number of RO groups included in a set of RO groups is predefined or indicated by the network equipment. The RO groups included in a set of RO groups are determined based on the first RO group index.

[0093] In some embodiments, the third information includes a first RO group index and / or a second RO group index and / or a first group index and / or a first bitmap and / or a second bitmap and / or an RO group mask index and / or a first RIV value. Of these, one bit in the first bitmap corresponds to one or more first RO group indexes, or one or more first group indexes, or one or more RO group(s), or one or more sets of RO group(s). One bit in the second bitmap corresponds to one or more second RO group indexes, or one or more RO group(s) from a set of RO group(s). The second RO group index and / or the second bitmap and / or the RO group mask index and / or the first RIV value indicate RO groups in the RO groups indicated by the first bitmap. The RO group mask index and / or the first RIV value is defined based on the first RO group index and / or the second RO group index.

[0094] In some embodiments, the third information may further be used to set corresponding ROs for feature combinations set by the first information, and for a feature combination containing multiple first message overlap counts, the third information sets corresponding ROs for each different first message overlap count in the feature combination. The third information includes one or more second IEs, each of which is used to set corresponding ROs for one first message overlap count, or the third information includes one or more second information fields, each of which is used to set corresponding ROs for one first message overlap count, and / or the third information sets ROs for one (per) period or mapping cycle.

[0095] In some embodiments, the first RO index is used to uniquely identify one RO within a single period or mapping cycle. The period is a first, second, third, or fourth period, or a first association period, or a first association pattern period, and the mapping cycle is a first, second, or third mapping cycle. These periods and mapping cycles will be described later. The first RO index represents the sequential number of an RO associated with a single SSB within a single period or mapping cycle, or the sequential number of an RO within a single period or mapping cycle.

[0096] In some embodiments, the second RO index is used to uniquely identify one RO within a set of ROs within a period or mapping cycle. The period or mapping cycle is the same as that used for the first RO index, and a detailed explanation is omitted here. The second RO index represents the sequential number of an RO associated with one SSB within the set of ROs, or the sequential number of an RO within the set of ROs.

[0097] In some embodiments, the second group index is used to uniquely identify a set of ROs within a single period or mapping cycle. The period or mapping cycle is the same as the implementation method for the first RO index, and a detailed explanation is omitted here. The second group index represents the sequential number of a set of ROs associated with a single SSB within the period or mapping cycle, or the sequential number of a set of ROs within the period or mapping cycle. The number of ROs included in the set of ROs is predefined or indicated by the network equipment.

[0098] In some embodiments, the terminal device may receive eighth information, which is used to indicate a set of ROs, and the third information indicates an RO group in the set of ROs.

[0099] In some embodiments, the third information includes a first RO index and / or a second RO index and / or a second group index and / or a third bitmap and / or a fourth bitmap and / or an RO mask index and / or a second RIV value.

[0100] In some embodiments, one bit in the third bitmap corresponds to one or more first RO indices, or one or more second group indices, or one or more ROs, or one or more sets of ROs. One bit in the fourth bitmap corresponds to one or more second RO indices, or one or more ROs in a set of ROs. The second RO index and / or the fourth bitmap and / or the RO mask index and / or the second RIV value indicates an RO in the RO indicated by the third bitmap. The RO mask index and / or the second RIV value is defined based on the first RO index and / or the second RO index.

[0101] In some embodiments, the third information indicates one RO group by indicating one or more ROs within one RO group in the first RO group set. Based on the RO(s) indicated by the third information, the terminal device determines the RO groups corresponding to the first message overlap count and the association relationships between the SSB and the RO groups.

[0102] The arrangement of RO and RO group indexes will be discussed later.

[0103] In some embodiments, for a feature combination including multiple first message repetition counts, the fourth information sets ROs for each different first message repetition count, thereby allowing different first message repetition counts to be distinguished by RO. However, embodiments of the present invention are not limited thereto.

[0104] In some embodiments, the fourth information can set ROs based on the number of first message overlaps (supported) for a feature combination, and for a feature combination containing multiple first message overlaps, the fourth information sets ROs for each different first message overlap, and the terminal device determines the mapping relationship between RO groups and / or SSBs and RO groups based on the ROs indicated by the fourth information. The fourth information indicates (ROs) based on the first RO index and / or the second RO index and / or the third RO index and / or the second group index, or sets ROs for one (per) period or mapping cycle. The implementation methods of the first RO index, second RO index, third RO index and second group index are as described above, and a detailed explanation is omitted here.

[0105] In some embodiments, the fifth information indicates (ROs) based on a third RO index, the third RO index representing the sequential number of RO(s) associated with one SSB within one third mapping cycle, thereby allowing the RO associated with the SSB to be determined.

[0106] In some embodiments, it is not necessary to add third-party information, and the RO group is indicated using fifth-party information. The method of indication can be found in the third-party information, and a detailed explanation of this is omitted here.

[0107] In some embodiments, when the feature combination set by the first information included in one first setting information includes a first message repetition (Msg1 repetition) and / or one or more first message repetition counts, the fifth information is absent, and / or the third and / or fourth information is optionally present. When the feature combination set by the included first information does not include a first message repetition (Msg1 repetition) and / or does not include first setting information for the first message repetition count, the third and / or fourth information is absent. When the feature combination set by the included first information includes first message repetition (Msg1 repetition) and / or first setting information for one or more first message repetition counts, the third and / or fourth information is optionally present.

[0108] The following explains, along with the diagrams, how to arrange the RO / RO group index and how to determine the mapping or association relationships from SSB to RO / RO group.

[0109] In some embodiments, an SSB may be replaced by an SSB index. For example, one SSB index may be used to represent an SSB(s) that has / corresponds to that SSB index. In one SSB transmission period, one SSB index corresponds to one or more SSB(s).

[0110] In some embodiments, an SSB may be replaced by a candidate SSB index. For example, one candidate SSB index may be used to represent the SSB(s) that have / correspond to that candidate SSB index. In one SSB transmission cycle, one candidate SSB index corresponds to one SSB. In some embodiments, terminal equipment needs to determine valid ROs based on the SSB(s) that correspond to the SSB indexes provided (by the frequency spectrum type and / or uplink frequency band type and / or TDD uplink / downlink configuration and / or ssb-PositionsInBurst (indication information) in system information SIB1 or serving cell configuration information ServingCellConfigCommon). Other ROs are invalid ROs.

[0111] For example, for paired spectrum (or FDD frequency spectrum) or SUL (supplementary UL carrier, or supplementary uplink band), all ROs are valid. For unpaired spectrum (or TDD frequency spectrum), if a common TDD uplink / downlink configuration (e.g., tdd-UL-DL-ConfigurationCommon) is not provided to the terminal equipment, one RO (in one PRACH slot) is valid, provided that the RO is not located in the same PRACH slot as the SSB, is located before the SSB, starts after at least Ngap singles (received) in the preceding SSB, and the channel access mode is semi-static (only for Unlicensed / shared spectrum), then the RO does not overlap with a set of consecutive singles prior to the start of a channel occupancy time in which the next UE does not transmit (signals). If the terminal equipment is provided with the common TDD uplink and downlink configuration described above, one RO is valid if the RO is within the uplink symbol (as configured by the common TDD uplink and downlink configuration), or if the RO is not entirely located within the uplink symbol described above, and starts at least Ngap symbols after the last downlink symbol before it, and at least Ngap symbols (received) in the last SSB before it, and the channel access mode is semistatic (only for Unlicensed / shared spectrum), and the RO does not overlap with a set of consecutive singles before the start of a channel occupancy time in which the next UE does not transmit (signals). The value of Ngap is related to the subcarrier spacing (or SCS of PRACH) and / or preamble format of the preamble.

[0112] In some embodiments, the SSB(s) (in a valid RO) include SSB(s) corresponding to SSB indexes provided (by ssb-PositionsInBurst (indication information) in the system information SIB1 or ServingCellConfigCommon).

[0113] In some embodiments, an SSB is associated only with a valid RO, or only with an RO group that includes a valid RO. For example, determining the mapping relationship from an SSB to an RO means determining the mapping relationship from an SSB to valid ROs. Determining the mapping relationship from an SSB to an RO group means determining the mapping relationship from an SSB to an RO group that includes a valid RO. In other words, only valid ROs can be used for the following mappings between SSBs and ROs or RO groups. In some embodiments, the provided SSB indexes refer to the SSB indexes provided by ssb-PositionsInBurst (instruction information) in the system information SIB1 or the serving cell configuration information ServingCellConfigCommon. For example, the instruction information includes one or two bitmaps. For example, when it includes one bitmap, one bit in it corresponds to one SSB index, and for example, the bits in the bitmap correspond one-to-one with SSB indices from smallest to largest (or vice versa) from MSB to LSB (or vice versa). If the value of one of those bits is 1, the corresponding SSB index is provided; otherwise, it is not provided. Conversely, if the value of one of those bits is 0, the corresponding SSB index is provided; otherwise, it is not provided.

[0114] In some embodiments, the mapping from an SSB to an RO or RO group may be referred to as the mapping from an SSB index to an RO or RO group. Accordingly, an RO or RO group associated with an SSB may be referred to as an RO or RO group associated with an SSB index, and an SSB associated with an RO or RO group may be referred to as the SSB index of an RO or RO group.

[0115] (1) First, perform SSB index-RO mapping, and then perform RO grouping.

[0116] In some embodiments, the mapping between SSB indices and ROs may be performed first, and then the RO group may be determined. In this method, the number of SSB indices corresponding to each RO is N, and the value of N is, for example, {1 / 16, 1 / 8, 1 / 4, 1 / 2, 1, 2, 4, 8}. When N < 1, one SSB is associated with 1 / N consecutive valid ROs. When N ≥ 1, N SSBs are associated with the same valid RO, and different SSB indices are associated with different preambles. The mapping from SSB indices to ROs follows this order: first, the preamble indices within each RO are arranged in increasing order; then, the frequency-domain resource indices are arranged for the frequency-division multiplexing ROs; then, the time-division multiplexing ROs within each PRACH slot are arranged in increasing order of the time-domain resource indices; and finally, the PRACH slot indices are arranged in increasing order. In general, the number of active ROs in a single PRACH setting may not be sufficient to complete one mapping (i.e., it may not constitute a complete third mapping cycle), and the number of active ROs in different PRACH setting cycles may not be the same, which can make the mapping patterns relatively complex. To facilitate implementation, we define the following two types of association cycles.

[0117] The association period (first association period / first association period) from the SSB index to the RO is defined as follows: Starting from frame number 0 (Frame 0, start of SFN0), the minimum value (selected from 1, 2, 4, 8, or 16 radio pins) is chosen to ensure that the configured SSB index can be fully mapped to an RO at least once within the association period, corresponding to the PRACH configuration period in the table below. Additionally, if there are some unmapped ROs after the cyclic mapping from the entire SSB index to the RO is completed within a single mapping, these ROs will not establish a mapping relationship with the SSB.

[0118] [Table 1] The association pattern period (first pattern period / first association pattern period) from the SSB index to the RO is as follows: A single association pattern period may contain one or more association periods, and the mapping pattern from the SSB index to the RO may overlap within different pattern periods, with a maximum duration of 160ms. After an integer number of association periods, an RO that is not mapped by the SSB index cannot be used for PRACH transmission.

[0119] The following explains the mapping from SSB to RO, along with the diagrams.

[0120] Figures 4 to 8 show the mapping from SSB index to RO in an embodiment of the present invention. Let X represent the number of SSB indexes provided (by ssb-PositionsInBurst (instruction information) in the system information SIB1 or ServingCellConfigCommon). In Figures 4 to 8, SSBx (x=1~X) corresponds to the SSB indexes from smallest to largest values ​​among the provided SSB indexes, in order from smallest to largest x. For example, if the provided SSB indexes include {0,2,4,8}, then SSB1 corresponds to SSB index 0, SSB2 to SSB index 2, SSB3 to SSB index 4, and SSB4 to SSB index 8. Let Y represent the number of valid ROs in one PRACH setting cycle, and ROy (y=1~Y) corresponds to the valid ROs in the order of "frequency domain first, then time domain" within one PRACH setting cycle, in order from smallest to largest y. Let Z represent the number of frequency division multiplexing mode FDMed ROs, i.e., the number of ROs at the same time-domain position, where Z is, for example, 1, 2, 4, or 8. In Figure 4, the PRACH setting period is 10 ms, with N=1, X=4, and Z=4. In Figure 5, the PRACH setting period is 10 ms, with N=1 / 2, X=2, and Z=4. In Figure 6, the PRACH setting period is 10 ms, with N=2, X=16, and Z=4. In Figure 7, the PRACH setting period is 40 ms, with N=1 / 2, X=5, and Z=4. In Figure 8, the PRACH setting period is 10 ms, with N=2, X=4, and Z=4. From Figures 4 to 8, within one mapping cycle (third mapping cycle), each SSB corresponds to / associates N2 = max(1 / N, 1) ROs, i.e., depending on the value of N, each corresponds to / associates 1 to 8 ROs. In one association period, if that association period contains P (an integer greater than or equal to 1) mapping cycles, then each SSB corresponds to / is associated with N2 = P × max(1 / N, 1) ROs.In one association pattern period, if the association pattern period contains Q (an integer greater than or equal to 1) association periods, then each SSB is, respectively.

[0121]

number

[0122] In some embodiments, after mapping from SSB index to RO, RO grouping is performed, where N3 represents the number of ROs associated with one SSB index within one association pattern period (according to the analysis above, N3 is an integer greater than or equal to 1), and the first quantity R represents the number of ROs included in one RO group (e.g., 2 / 4 / 8). In the case of PRACH repetition, one SSB index in a single association pattern period may not be enough to constitute one RO group because it is associated with ROs. Therefore, determining which RO groups are associated with an SSB index requires considering multiple consecutive association pattern periods. Therefore, to facilitate implementation, a first period may be defined, which may be called, for example, the SSB index-to-(RO group) mapping / association period, the RO group period, the SSB index-to-(RO group) mapping / association pattern period, the RO group pattern period, or the time period, but the present invention is not limited to these.

[0123] In some embodiments, the association between SSB index and RO groups overlaps from the first time position (egframe 0) to the first time period. The first time period includes, for example, an integer (second quantity K) association pattern periods and / or an integer (third quantity G2) first mapping cycles. For example, in the first time period, each SSB is associated with at least G1 (egG1=1, but not limited to) RO groups and / or mapped to RO groups at least G2 times. Alternatively, the first time period includes K association pattern periods that can be used to ensure that each SSB is associated with at least G1 RO groups and / or mapped to RO groups at least G2 times.

[0124] In some embodiments, the first period does not exceed the first time length, and the first time length is, for example, predefined and / or instructed by a network device, for example, the first time length is predefined as 160 ms, 320 ms, 640 ms, 1280 ms, or 160 × 8 ms, or is related to the first quantity, or the network device may instruct the terminal device to select one of {160, 320, 640, 1280} ms as the first time length.

[0125] In some embodiments, the first period includes K association pattern periods, where the value of K may be predefined or indicated by a network device.

[0126] For example, K may be indicated by a network device as one of 1, 2, 4, or 8.

[0127] For example, K may be predefined as follows:

[0128] Example 1: (This applies to, but is not limited to, Example 1.) When N3 ≥ R, K = 1, Otherwise (N3 <Rのとき)に、

[0129]

number

[0130]

number

[0131] Example 2: (Applicable to, but not limited to, Example 1)

[0132]

number

[0133]

number

[0134]

number

[0135]

number

[0136]

number

[0137] Example 3: (Applicable to, but not limited to, Examples 2 or 3) N4 represents the number of ROs that have the same / identical frequency resource index (i.e., the same / identical frequency domain location / frequency domain resource) in one association pattern period.

[0138] When N4 ≥ R, K = 1, Otherwise (N4 <Rのとき)に、

[0139]

number

[0140]

number

[0141] Example 4: (Applicable to, but not limited to, Examples 2 or 3) N4 represents the number of ROs that have the same / identical frequency resource index (i.e., the same / identical frequency domain location / frequency domain resource) in one association pattern period.

[0142]

number

[0143]

number

[0144]

number

[0145]

number

[0146]

number

[0147] Example 5: (Applicable to, but not limited to, Examples 1, 2, or 3) K = R.

[0148] Example 6: (Applicable to, but not limited to, Example 1) K is the minimum value within a certain numerical range that allows each SSB index (in the first period) to be associated with at least G1 (e.g., T=1, but not limited to) RO groups and / or mapped to RO groups at least G2 times (or to include at least G2 first mapping periods). The numerical range is, for example, {2, 4, 8}, but not limited to this.

[0149] In a single mapping (or a single first mapping cycle), one SSB index may be associated with G3 RO groups, but is not limited to this.

[0150] G1 and / or G2 and / or G3 are, for example, predefined or indicated by network equipment.

[0151] Example 7: (Applicable to, but not limited to, Example 2) K is the minimum value within a certain numerical range that allows each SSB index to be associated with at least G1 (e.g., T=1, but not limited to) RO groups (at the same frequency position) and / or mapped to RO groups at least G2 times (or to include at least G2 first mapping periods). The numerical range is, for example, {2, 4, 8}, but is not limited to this.

[0152] In a single mapping (or a single first mapping cycle), one SSB index may be associated with G3 RO groups, but is not limited to this.

[0153] G1 and / or G2 and / or G3 are, for example, predefined or indicated by network equipment.

[0154] Example 8: (Applicable to, but not limited to, Example 1) K is the smallest integer that can be expressed as mod(K×N3,R)=0. Alternatively, K is the smallest value within a certain range that can be expressed as mod(K×N3,R)=0. Alternatively, K is the smallest integer that can be expressed as mod(K×N3,R×G1)=0. Alternatively, K is the smallest value within a certain range that can be expressed as mod(K×N3,R×G1)=0. Alternatively, K is the smallest integer that can be expressed as mod(K×N3,R×G2×G3)=0. Alternatively, K is the smallest value within a certain range that can be expressed as mod(K×N3,R×G2×G3)=0. The range of values ​​is, for example, {2,4,8}, but is not limited to this.

[0155] Example 9: (Applicable to, but not limited to, Example 2) K is the smallest integer that can be expressed as mod(K×N4,R)=0. Alternatively, K is the smallest value within a certain range that can be expressed as mod(K×N4,R)=0. Alternatively, K is the smallest integer that can be expressed as mod(K×N4,R×G1)=0. Alternatively, K is the smallest value within a certain range that can be expressed as mod(K×N4,R×G1)=0. Alternatively, K is the smallest integer that can be expressed as mod(K×N4,R×G2×G3)=0. Alternatively, K is the smallest value within a certain range that can be expressed as mod(K×N4,R×G2×G3)=0. The numerical range is, for example, {2,4,8}, but is not limited to this.

[0156] Example 10: A default value is predefined, for example, 8, but is not limited to this.

[0157] The following explains how to determine RO groups.

[0158] In some embodiments, RO groups are determined within the first period in the order of "first in the time domain, then in the frequency domain."

[0159] Example 1: For ROs associated with the same SSB index, RO groups are determined in the order of "time domain first, then frequency domain" within the first period, and each first quantity (R) of ROs belongs to the same RO group. That is, in the first period, for ROs associated with the same SSB index, arrangement is performed for time division multiplexing ROs in the order of increasing time domain resource index, and then arrangement is performed for frequency division multiplexing ROs within each PRACH slot in the order of increasing frequency domain resource index. After this arrangement, each first quantity R of ROs belongs to the same RO group. If, after obtaining an integer number of RO groups, the remaining ROs are not enough to constitute one RO group (i.e., the remaining ROs are less than R ROs), then these remaining ROs are not used for Msg1 duplicate transmission with a duplicate count of R.

[0160] The following explanation will be given in conjunction with Figures 9 to 11. In Figures 9 and 10, it is assumed that the mapping from SSB index to RO is obtained using the method shown in Figure 5. As shown in Figure 9, with R=4, within the first period (20ms), RO1, RO2, RO3, RO4 associated with SSB1 and RO1, RO2, RO3, RO4 associated with SSB2 each form one set (RO set 1), RO5, RO6, RO7, RO8 associated with SSB1 and RO5, RO6, RO7, RO8 associated with SSB2 each form one set (RO set 2), and RO9, RO10, RO11, RO12 associated with SSB1 and RO9, RO10, RO11, RO12 associated with SSB2 each form one set (RO set 3). As shown in Figure 10, with R=8, in the first period (40ms), RO1, RO2, RO3, RO4, RO5, RO6 associated with SSB1 in the first association pattern period and RO1, RO2, RO3, RO4, RO5, RO6 associated with SSB2, and RO1, RO2 associated with SSB1 in the second association pattern period and RO1, RO2 associated with SSB1 and RO1, RO2 associated with SSB2 each form one set (RO set 1), and RO7, RO8, RO9, RO10 associated with SSB1 in the first association pattern period and RO7, RO8 associated with SSB2, RO9, RO10, and RO3, RO4 associated with SSB1 in the second association pattern period, and RO3, RO4 associated with SSB2, each constitute one pair (RO pair 2). RO7, RO8, RO9, RO10, RO11, RO12 associated with SSB1 in the second association pattern period, and RO7, RO8, RO9, RO10, RO11, RO12 associated with SSB2, and RO11, RO12 associated with SSB1 in the first association pattern period, and RO11, RO12 associated with SSB2, each constitute one pair (RO pair 3).

[0161] In Figure 11, it is assumed that the mapping from SSB index to RO is obtained using the method shown in Figure 6. As shown in Figure 11, R=2, and all RO1 and RO2 associated with SSB1-16 within the first period (20ms) each constitute one pair (RO pair).

[0162] Example 2: For ROs associated with the same SSB index, RO groups are determined in the order of "time domain first, then frequency domain" within the first period. Among these, for ROs with the same frequency resource index, each first quantity (R) of ROs belongs to the same RO group. That is, in the first period, for ROs associated with the same SSB index, the ROs for time division multiplexing are first arranged in the order of increasing time domain resource index, and then the ROs for frequency division multiplexing within each PRACH slot are arranged in the order of increasing frequency domain resource index. After this arrangement, for ROs with the same frequency resource index (i.e., the same frequency domain position / frequency domain resource), each R ROs belongs to the same RO group. For ROs with the same frequency resource index, if, after obtaining an integer number of RO groups, the remaining ROs (if any) are insufficient to constitute one RO group (i.e., the remaining ROs are less than R ROs), then these remaining ROs are not used for Msg1 duplicate transmission with a duplicate count of R.

[0163] The following explanation will be given in conjunction with Figures 12 to 14. In Figures 12 and 14, it is assumed that the mapping from SSB index to RO is obtained using the method shown in Figure 5. As shown in Figure 12, R=4, and within the first period (20ms), RO1, RO2, RO3, RO4 associated with SSB1 and RO1, RO2, RO3, RO4 associated with SSB2 each form one set (RO set 1), while RO7, RO8, RO9, RO10 associated with SSB1 and RO7, RO8, RO9, RO10 associated with SSB2 each form one set (RO set 2). As shown in Figure 13, with R=8, in the first period (40ms), RO1, RO2, RO3, RO4, RO5, RO6 associated with SSB1 in the first association pattern period and RO1, RO2, RO3, RO4, RO5, RO6 associated with SSB2, and RO1, RO2 associated with SSB1 in the second association pattern period and RO1, RO2 associated with SSB2 each form one set (RO set 1). RO7, RO8, RO9, RO10, RO11, RO12 associated with SSB1 in the first association pattern period and RO7, RO8, RO9, RO10, RO11, RO12 associated with SSB2, and RO7, RO8 associated with SSB1 in the second association pattern period and RO7, RO8 associated with SSB2 each form one set (RO set 2).

[0164] In Figure 14, it is assumed that the mapping from SSB index to RO is obtained using the method shown in Figure 6. As shown in Figure 14, R=2, and all RO1 and RO2 associated with SSB1 to 16 within the first period (20ms) each constitute one pair (RO pair).

[0165] Example 3: For ROs associated with the same SSB index, ROs with the same frequency resource index are individually determined within the first period in the order of "time domain first, then frequency domain," and each of the first number (R) ROs belongs to the same RO group. That is, for ROs associated with the same SSB index, ROs having the same / same frequency resource index (i.e., the same / same frequency domain location / frequency domain resource) are rearranged in the following order: that is, within the first period, the ROs for time division multiplexing are arranged in the order of increasing time domain resource index, and each of the R ROs belongs to the same RO group. For ROs with the same frequency resource index, if, after obtaining an integer number of RO groups, the remaining ROs (if any) are not enough to constitute one RO group (i.e., the remaining ROs are less than R ROs), then the remaining ROs are not used for Msg1 duplicate transmission with a duplicate count of R. For other ROs that have the same frequency resource index (i.e., the same frequency domain location / frequency domain resource), the RO grouping is performed using the method described above for each.

[0166] The following explanation will be given in conjunction with Figures 15 to 17. In Figures 15 and 16, it is assumed that the mapping from SSB index to RO is obtained using the method shown in Figure 5. As shown in Figure 15, R=4, and within the first period (20ms), RO1, RO2, RO3, RO4 associated with SSB1 and RO1, RO2, RO3, RO4 associated with SSB2 each form one set (RO set 1), while RO7, RO8, RO9, RO10 associated with SSB1 and RO7, RO8, RO9, RO10 associated with SSB2 each form one set (RO set 2). As shown in Figure 16, with R=8, in the first period (40ms), RO1, RO2, RO3, RO4, RO5, RO6 associated with SSB1 in the first association pattern period and RO1, RO2, RO3, RO4, RO5, RO6 associated with SSB2, and RO1, RO2 associated with SSB1 in the second association pattern period and RO1, RO2 associated with SSB2 each constitute one set (RO set 1). RO7, RO8, RO9, RO10, RO11, RO12 associated with SSB1 in the first association pattern period and RO7, RO8, RO9, RO10, RO11, RO12 associated with SSB2, and RO7, RO8 associated with SSB1 in the second association pattern period and RO7, RO8 associated with SSB2 each constitute one set (RO set 2).

[0167] In Figure 17, it is assumed that the mapping from SSB index to RO is obtained using the method shown in Figure 6. As shown in Figure 17, R=2, and all RO1 and RO2 associated with SSB1 to 16 within the first period (20ms) each constitute one pair (RO pair).

[0168] In some embodiments, RO grouping may also be performed using a frequency hopping method, in which case the adoption of the frequency hopping method may be predefined or set / instructed by the network equipment, and frequency hopping is applied when one SSB index is associated with multiple ROs at the same time domain position, and the frequency domain position of each associated time domain position of the multiple ROs is the same (or one SSB index is associated with ROs at the same frequency domain position in different time domain positions). Figures 18 to 19 show RO grouping performed using a frequency hopping method in embodiments of the present invention. In Figures 18 and 19, the mapping from SSB index to RO is obtained using the method shown in Figure 5, the ROs are sorted using the method in Example 1, R=4, and as shown in Figure 18, within the first period (20ms), RO1, RO3, RO8, RO10 associated with SSB1 and RO1, RO3, RO8, RO10 associated with SSB2 each form one set (RO set 1), and RO2, RO4, RO7, RO9 associated with SSB1 and RO2, RO4, RO7, RO9 associated with SSB2 each form one set (RO set 2). As shown in Figure 19, with R=4, within the first period (20ms), RO1, RO3, RO8, and RO10 are associated with SSB1 in one set (RO set 1), RO2, RO4, RO7, and RO9 are associated with SSB1 in one set (RO set 2), RO13, RO15, RO20, and RO22 are associated with SSB1 in one set (RO set 3), and RO14, RO16, RO19, and RO21 are associated with SSB1 in one set (RO set 4).

[0169] (2) First, perform RO grouping, and then perform group mapping from SSB index to RO.

[0170] In some embodiments, instead of using existing association pattern mapping periods and association mapping periods for mapping, a new period is defined as follows: namely, the mapping (or set of RO groups) between the SSB index and RO group overlaps from the second time position (egframe 0) to the second period. The second period may be called, for example, the SSO index-to-(RO group) mapping / association period or the SSO index-to-(RO group) mapping association pattern period, but is not limited to these.

[0171] In some embodiments, a second period comprises an integer (fourth quantity) of second mapping cycles and / or an integer (fifth quantity K2) of third periods and / or an integer (sixth quantity) of fourth periods.

[0172] In some embodiments, the second period does not exceed the second time length, the second time length is, for example, predefined and / or instructed by the network device, for example, the second time length is predefined as 160ms, 320ms, 640ms, 1280ms, or 160 × 8ms, or is related to the first quantity, the first quantity is related to the second duplicate count, the first message duplicate count is the same as or different from the second duplicate count, the method for determining the second duplicate count is the same as the method for determining the first message duplicate count, which is omitted here in detail, or the network device may select one of {160, 320, 640, 1280}ms as the second time length and instruct the terminal device.

[0173] In some embodiments, RO groups are determined in the third period, which includes an integer number of PRACH setting cycles. The third period may be called, for example, the RO grouping cycle or the SSO index-to-(RO group) mapping / association cycle, but is not limited to these.

[0174] In some examples, the third period includes K1 PRACH setting cycles, of which the values ​​of K1 are as follows:

[0175] For example, K may be indicated by a network device as one of 1, 2, 4, 8, or 16.

[0176] For example, K may be predefined as follows:

[0177] Example 1 (Applicable to, but not limited to, Example 1): Of these, N5 represents the number of ROs in one third period.

[0178] When N5≧R, K1=1, Otherwise (N5 <Rのとき)に、

[0179]

number

[0180]

number

[0181] Example 2 (applicable to, but not limited to, Example 1):

[0182]

number

[0183]

number

[0184]

number

[0185]

number

[0186]

number

[0187] Example 3 (applicable to, but not limited to, Examples 2 or 3): Of these, N6 represents the number of ROs that have the same / same frequency resource index (i.e., the same / same frequency domain location / frequency domain resource) in one third period.

[0188] When N6≧R, K1=1, Otherwise (N6 <Rのとき)に、

[0189]

number

[0190]

number

[0191] Example 4 (applicable to, but not limited to, Examples 2 or 3): Of these, N4 represents the number of ROs that have the same / same frequency resource index (i.e., the same / same frequency domain location / frequency domain resource) in one association pattern period.

[0192]

number

[0193]

number

[0194]

number

[0195]

number

[0196]

number

[0197] Example 5 (applicable to, but not limited to, Examples 1, 2, or 3): K1 = R.

[0198] Example 6 (applicable to, but not limited to, Example 1): K1 is the minimum value within a certain numerical range that allows each SSB index to be associated with at least T1 RO groups (in the first period) and / or mapped to RO groups at least T2 times (or to include at least T2 second mapping periods). The numerical range is, for example, {1, 2, 4, 8, 16}. The numerical range is, for example, related to the PRACH configuration period, where different periods correspond to different numerical ranges, for example.

[0199] In a single mapping (or a single second mapping cycle), one SSB index may be associated with T3 RO groups, but is not limited to this.

[0200] T1 and / or T2 and / or T3 are, for example, predefined or indicated by network equipment.

[0201] Example 7 (applicable to, but not limited to, Example 2): K1 is the minimum value within a certain numerical range that allows each SSB index to be associated with at least T1 RO groups (at the same frequency position) and / or mapped to RO groups at least T2 times (or to include at least T2 second mapping periods). The numerical range is, for example, {1, 2, 4, 8, 16}. The numerical range is related to, for example, the PRACH configuration period, where, for example, different periods correspond to different numerical ranges.

[0202] In a single mapping (or a single second mapping cycle), one SSB index may be associated with T3 RO groups, but is not limited to this.

[0203] T1 and / or T2 and / or T3 are, for example, predefined or indicated by network equipment.

[0204] Example 8 (applicable to, but not limited to, Example 1): K1 is the smallest integer that can be expressed as mod(K1×N5,R)=0. Alternatively, K1 is the smallest value within a certain numerical range that can be expressed as mod(K1×N5,R)=0. Alternatively, K1 is the smallest integer that can be expressed as mod(K1×N5,R×T1)=0. Alternatively, K1 is the smallest value within a certain numerical range that can be expressed as mod(K1×N5,R×T2×T3)=0. Alternatively, K1 is the smallest integer that can be expressed as mod(K1×N5,R×T2×T3)=0. Alternatively, K1 is the smallest value within a certain numerical range that can be expressed as mod(K1×N5,R×T2×T3)=0. The numerical range is, for example, {1,2,4,8,16}. This numerical range is related to, for example, the PRACH configuration period, and for example, different periods correspond to different numerical ranges, but is not limited to this.

[0205] Example 9 (applicable to, but not limited to, Example 2): K1 is the smallest integer that can be expressed as mod(K1×N4,R)=0. Alternatively, K1 is the smallest value within a certain numerical range that can be expressed as mod(K1×N4,R)=0. Alternatively, K1 is the smallest integer that can be expressed as mod(K1×N4,R×T)=0. Alternatively, K1 is the smallest value within a certain numerical range that can be expressed as mod(K1×N4,R×T)=0. The numerical range is, for example, {1,2,4,8,16}. This numerical range is related to, for example, the PRACH setting period, and different periods correspond to different numerical ranges, but is not limited to this.

[0206] Example 10: A default value is predefined, for example, 8, but is not limited to this.

[0207] The following describes how to determine the mapping / association relationships between RO groups and / or SSB indices and RO groups within the third period.

[0208] In some embodiments, the RO groups are determined first in the time domain order during the third period.

[0209] Example 1: For ROs within the third period, RO groups are first determined in the second period in time domain order, and each of the first quantity (R) ROs belongs to the same RO group. That is, for ROs within the third period, the ROs for time division multiplexing are arranged in the first period in order of increasing time domain resource index, and then the ROs for frequency division multiplexing within each PRACH slot are arranged in order of increasing frequency domain resource index. After this arrangement, each of the first quantity R ROs belongs to the same RO group. If, after obtaining an integer number of RO groups, the remaining ROs are not enough to constitute one RO group (i.e., the remainder is less than R ROs), then the remaining ROs are not used for Msg1 duplicate transmission with a duplicate count of R.

[0210] The following explanation will be given in conjunction with Figures 20 and 21. In Figure 20 (which does not consider mapping with the SSB index), R=4, RO1, RO2, RO3, RO4 in the first RO grouping period and RO1, RO2, RO3, RO4 in the second RO grouping period each constitute one group (RO group 1), RO5, RO6, RO7, RO8 in the first RO grouping period and RO7, RO8, RO5, RO6 in the second RO grouping period each constitute one group (RO group 2), RO9, RO10, RO11, RO12 in the first RO grouping period and the second RO9, RO10, RO11, and RO12 in the first RO grouping period each constitute one group (RO group 3), RO13, RO14, RO15, and RO16 in the first RO grouping period and RO13, RO14, RO15, and RO16 in the second RO grouping period each constitute one group (RO group 4), RO17, RO18, RO19, and RO20 in the second RO grouping period constitute one group (RO group 5), and RO21, RO22, RO23, and RO24 in the second RO grouping period constitute one group (RO group 6). As shown in Figure 21 (considering mapping with SSB index), R=4, X=4, and one third period contains an integer (T2) second mapping periods. T3=1 (one RO group in one second mapping period). In one third period, RO groups that are not associated with an SSB index after an integer number of second mapping cycles are not used for Msg1 duplicate transmissions with a duplicate count of R. Within the first / second RO grouping cycle, RO1-RO16 constitute one second mapping cycle, of which RO1-RO4 are associated with SSB1, RO5-RO8 with SSB2, RO9-RO12 with SSB3, and RO13-RO16 with SSB4.

[0211] Example 2: For ROs in the third period, RO groups are first determined in the second period in time domain order. Among these, ROs with the same frequency resource index have a first quantity (R) of ROs belonging to the same RO group. That is, for ROs in the third period, the ROs for time division multiplexing are arranged in the second period in order of increasing time domain resource index, and then the ROs for frequency division multiplexing within each PRACH slot are arranged in order of increasing frequency domain resource index. After this arrangement, for ROs with the same frequency resource index (i.e., the same frequency domain position / frequency domain resource), R ROs belong to the same RO group. If, after obtaining an integer number of RO groups for ROs with the same frequency resource index, the remaining ROs (if any) are insufficient to constitute one RO group (i.e., the remainder are less than R ROs), then these remaining ROs are not used for Msg1 duplicate transmission with a duplicate count of R.

[0212] The following description will be made in conjunction with FIGS. 22 to 26. In FIGS. 22 to 24 (without considering the mapping with the SSB index), R = 4. As shown in FIGS. 22 to 23, RO1, RO2, RO3, RO4 in the first RO grouping period and RO1, RO2, RO3, RO4 in the second RO grouping period are each one set (RO set 1), RO5, RO6, RO7, RO8 in the first RO grouping period and RO7, RO8, RO9, RO10 in the second RO grouping period are each one set (RO set 2), RO9, RO10, RO11, RO12 in the first RO grouping period and RO13, RO14, RO15, RO16 in the second RO grouping period are each one set (RO set 3), and RO13, RO14, RO15, RO16 in the first RO grouping period and RO19, RO20, RO21, RO22 in the second RO grouping period are each one set (RO set 4). As shown in FIG. 24, RO1, RO2, RO3, RO4 in the first RO grouping period and RO1, RO2, RO3, RO4, RO5, RO6, RO7, RO8 in the second RO grouping period are each one set (RO set 1), RO5, RO6, RO7, RO8 in the first RO grouping period and RO9, RO10, RO11, RO12, RO13, RO14, RO15, RO16 in the second RO grouping period are each one set (RO set 2), RO9, RO10, RO11, RO12 in the first RO grouping period and RO17, RO18, RO19, RO20, RO21, RO22, RO23, RO24 in the second RO grouping period are each one set (RO set 3), and RO13, RO14, RO15, RO16 in the first RO grouping period and RO25, RO26, RO27, RO28, RO29, RO30, RO31, RO32 in the second RO grouping period are each one set (RO set 4).

[0213] In Fig. 25 (considering the mapping with the SSB index), R = 4, X = 4, and one third period includes an integer (T2) number of second mapping periods. T3 = 1 (one RO group). In the first set mapping period of the SSB index - RO group, RO1 to RO16 constitute one second mapping period. Among them, RO1 to RO4 are associated with SSB1, RO5 to RO8 are associated with SSB2, RO9 to RO12 are associated with SSB3, and RO13 to RO16 are associated with SSB4. In the second set mapping period of the SSB - RO group, RO1 to RO16 constitute one second mapping period. Among them, RO1 to RO4 are associated with SSB1, RO7 to RO10 are associated with SSB2, RO13 to RO16 are associated with SSB3, RO19 to RO22 are associated with SSB4, and RO1 to RO4, RO7 to RO10, RO13 to RO16, RO19 to RO22 constitute one second mapping period.

[0214] In Fig. 26 (considering the mapping with the SSB index), R = 4, X = 4, and one third period includes an integer (T2) number of second mapping periods. T3 = 1 (one RO group). In the first set mapping period of the SSB - RO group, RO1 to RO16 constitute one second mapping period. Among them, RO1 to RO4 are associated with SSB1, RO5 to RO8 are associated with SSB2, RO9 to RO12 are associated with SSB3, and RO13 to RO16 are associated with SSB4. In the second set mapping period of the SSB - RO group, RO1 to RO4 (associated with SSB1), RO9 to RO12 (associated with SSB2), RO17 to RO20 (associated with SSB3), RO25 to RO28 (associated with SSB4) constitute one second mapping period. RO6 to RO8 (associated with SSB1), RO13 to RO16 (associated with SSB2), RO21 to RO24 (associated with SSB3), RO29 to RO32 (associated with SSB4) constitute one second mapping period.

[0215] Example 3: For ROs within the third period, for ROs with the same frequency resource index, the RO group is determined one by one in the second period in time domain order, and each of the first number (R) ROs belongs to the same RO group. That is, for ROs within the third period, ROs with the same / same frequency resource index (i.e., the same / same frequency domain location / frequency domain resource) are rearranged in the following order, that is, the ROs for time division multiplexing are arranged in the order of increasing time domain resource index within the second period, and each R ROs belongs to the same RO group. In the case of ROs with the same frequency resource index, if the remaining ROs (if any) after obtaining an integer number of RO groups are insufficient to constitute one RO group (i.e., the remainder is less than R ROs), then the remaining ROs are not used for Msg1 duplicate transmission with a duplicate count of R. For other ROs with the same frequency resource index (i.e., the same frequency domain location / frequency domain resource), the RO grouping is performed by adopting the method described above for each.

[0216] The following explanation will be given in conjunction with Figures 27 and 28. In Figure 27 (without considering mapping with the SSB index), R=4, and for the same frequency position, RO1, RO2, RO3, RO4 in the first RO grouping period and RO1, RO2, RO3, RO4 in the second RO grouping period each constitute one set. As shown in Figure 28 (considering mapping with the SSB index), R=4,X4, and one third period contains an integer (T2) second mapping periods. T3=1 (one RO group). In one SSB index-RO group mapping period, the same frequency domain position is associated with the same SSB index.

[0217] In some embodiments, a frequency hopping method may also be used for RO grouping. Whether or not to use the frequency hopping method may be predefined or set / instructed by the network equipment. Figures 29 to 34 show examples of RO grouping using the frequency hopping method in embodiments of the present invention. Figures 29 and 30 (SSB (Without considering the mapping with the index) Assume that RO is sorted in the manner of Example 1 and R=4, as shown in Figure 29, RO1, RO3, RO6, RO8 in the first RO sorting period and RO1, RO3, RO8, RO10 in the second RO sorting period each form one set (RO set 1), RO2, RO4, RO5, RO7 in the first RO sorting period and RO2, RO4, RO7, RO9 in the second RO sorting period each form one set (RO set 2), RO9, RO11, RO14, RO16 in the first RO sorting period and RO13, RO15, RO20, RO22 in the second RO sorting period each form one set (RO set 3), and RO10, RO12, RO13, RO15 in the first RO sorting period and RO14, RO16, RO19, RO21 in the second RO sorting period each form one set (RO set 4). As shown in Figure 30, RO1, RO6, RO11, RO16 in the first RO grouping cycle and RO1, RO6, RO15, RO22 in the second RO grouping cycle each constitute one group (RO group 1), RO2, RO7, RO12, RO13 in the first RO grouping cycle and RO2, RO9, RO16, RO19 in the second RO grouping cycle each constitute one group (RO group 2), RO3, RO6, RO9, RO14 in the first RO grouping cycle and RO3, RO10, RO13, RO20 in the second RO grouping cycle each constitute one group (RO group 3), and RO4, RO5, RO10, RO15 in the first RO grouping cycle and RO4, RO7, RO14, RO21 in the second RO grouping cycle each constitute one group (RO group 4).

[0218] In Figure 31 (considering the mapping with the SSB index), we set R=4 and X=4 as shown in Figure 31. One third period contains an integer (T2) second mapping periods. T3=1 (one RO group). Within the first RO grouping cycle, RO1, RO6, RO11, and RO16 are associated with SSB1; RO2, RO7, RO12, and RO13 are associated with SSB2; RO3, RO6, RO9, and RO14 are associated with SSB3; RO4, RO5, RO10, and RO15 are associated with SSB4; and RO1 through RO16 are associated with one second mapping cycle. Within the second RO grouping cycle, RO1, RO8, RO15, and RO22 are associated with SSB1; RO2, RO9, RO16, and RO19 are associated with SSB2; RO3, RO10, RO13, and RO20 are associated with SSB3; and RO4, RO7, RO14, and RO21 are associated with SSB4; and the aforementioned ROs are associated with one second mapping cycle.

[0219] In Figures 32 and 33 (without considering mapping with SSB), the ROs are rearranged according to the method of Example 2, with R=4. As shown in Figure 32, in the first / second RO grouping period, each RO group contains RO1-RO4 in partially the same frequency and time domains. As shown in Figure 33, in the first / second RO grouping period, each RO group contains RO1-RO4 in different frequency and time domains.

[0220] In Figure 34 (considering mapping with SSB), we set R=4 and X=4 as shown in Figure 34. One third period contains an integer (T2) second mapping periods. T3=1 (one RO group), and the SSB index associated with ROs in the same RO group is the same, and all RO1~RO4 within a single SSB index-RO pair mapping period constitute a second mapping period.

[0221] In some examples, after completing the RO grouping, a mapping from the SSB index to the RO group is performed.

[0222] For example, the second period includes an integer number of fourth periods, and the fourth period includes an integer number of third periods. Of these, the third period is determined by a method that does not consider the mapping between the SSB index and RO or RO group in the manner described above, and the third period includes an integer number of RO groups. One fourth period includes an integer number of second mapping periods. Of these, in one fourth period, ROs or RO groups that are not associated with an SSB index after an integer number of second mapping periods are not used in Msg1 duplicate transmissions with a repetition count of R. In one second period, if the ROs after an integer number of fourth periods are not enough to constitute one RO group (i.e., the remainder is less than R ROs) or if the ROs or RO groups after an integer number of fourth periods are not associated with an SSB index, then the remainder ROs or RO groups are not used in Msg1 duplicate transmissions with a repetition count of R. In other words, ROs or RO groups that are not associated with an SSB index after an integer number of fourth periods are not used in Msg1 duplicate transmissions with a repetition count of R.

[0223] Figures 35 and 36 show the mapping relationships. As shown in Figure 35, R=4, T3=1 (each SSB index is associated with one RO group within one second mapping period), and X=4. Assume the second time length of the second period is 160ms. As shown in Figure 36, R=4, T3=1 (each SSB index is associated with one RO group within one second mapping period), and X=6. Assume the second time length of the second period is 160ms.

[0224] For example, a second period may contain an integer (K2) third period. Of these, one third period may contain an integer (T2) second mapping cycles, or an integer number of mappings between an SSB index and an RO group. The number of RO groups and / or second mapping cycles included in different third periods within a second period may be the same or different. Of these, in one second period, if the ROs after an integer number of third periods are not enough to constitute one RO group (i.e., there are fewer than R ROs) or if the ROs or RO groups after an integer number of third periods are not associated with an SSB, then the remaining ROs or RO groups are not used for Msg1 duplicate transmission with a repetition count of R. In other words, ROs or RO groups that are not associated with an SSB index after an integer number of third periods are not used for Msg1 duplicate transmission with a repetition count of R. Figure 37 shows the mapping relationships. As shown in Figure 37, R=4, T3=1 (each SSB is associated with one RO group within one second mapping cycle), and X=4. Assume that the second time length of the second period is 160 ms.

[0225] For example, the second period contains, for example, an integer (K2) third periods. Of these, one third period contains an integer number of RO groups. The number of RO groups and / or second mapping cycles in different third periods within the second period may be the same or different. Of these, in one second period, if the ROs after an integer number of third periods are not enough to constitute one RO group (i.e., the remainder is less than R ROs) or if the ROs or RO groups after an integer number of third periods are not associated with an SSB index, then the remainder ROs or RO groups are not used for Msg1 duplicate transmission with a repeat count of R. In other words, ROs or RO groups that are not associated with an SSB after an integer number of third periods are not used for Msg1 duplicate transmission with a repeat count of R. Figure 38 shows the mapping relationship. As shown in Figure 38, R=4, T3=1 (each SSB index is associated with one RO group within one second mapping cycle), and X=4. Assume the second time length of the second period is 160ms.

[0226] In some embodiments, the first quantity is related to the second number of duplicates, the first number of duplicates is the same as or different from the second number of duplicates, and the method for determining the second number of duplicates is the same as the method for determining the first number of duplicates. A detailed explanation of this is omitted here.

[0227] The following explains how to sort RO groups (how to determine the RO group index, assuming that for a certain period and / or a certain mapping period, one SSB index is associated with S RO groups). In some embodiments, the RO groups are first rearranged in time domain order during the period or mapping cycle.

[0228] For example, the ROs associated with a single SSB index are sorted as follows: first, the ROs for time-division multiplexing are arranged in the order of increasing time-domain resource index, and then the ROs for frequency-division multiplexing are arranged in the order of increasing wavenumber-domain resource index. Following the above order of ROs included in each RO group, for example, the RO groups are sequentially RO group 0~(S-1) or RO group 1~S, but are not limited to these.

[0229] For example, suppose S RO groups each contain ROs located in the same frequency domain, and these S RO groups are sorted as follows: first, the RO groups for time division multiplexing are arranged in the order of increasing time domain resource index, and then the RO groups for frequency division multiplexing are arranged in the order of increasing frequency domain resource index.

[0230] For example, based on the first RO (or reference RO). An RO group may contain one or more first ROs (reference ROs). For example, the S RO groups are sorted according to the following: first, in increasing order of time-domain resource index, the RO groups (time-division multiplexing of the first RO) are sorted against the first RO; and then, in increasing order of frequency-domain resource index, the RO groups (frequency-division multiplexing of the first RO) are sorted against the first RO.

[0231] In some embodiments, the first RO refers to, for example, the first RO in an RO group. The first RO in an RO group refers to, for example, the first RO in the RO group that is sorted according to the following: that is, the ROs for time division multiplexing are arranged in the order of increasing time domain resource index, and then the ROs for frequency division multiplexing are arranged in the order of increasing frequency domain resource index, or the first RO in the RO group that is sorted according to the following: that is, the ROs for frequency division multiplexing are arranged in the order of increasing frequency domain resource index, and then the ROs for time division multiplexing are arranged in the order of increasing time domain resource index.

[0232] In some embodiments, the RO groups are sorted in the order of "frequency domain first, then time domain" during the period or mapping cycle.

[0233] For example, the ROs associated with a single SSB index are sorted as follows: first, the frequency-domain resource index is ordered in increasing order for frequency-division multiplexing ROs, and then the time-domain resource index is ordered in increasing order for time-division multiplexing ROs. Following the above order of ROs included in each RO group, for example, the RO groups are sequentially RO group 0~(S-1) or RO group 1~S, but are not limited to these.

[0234] For example, assume that S RO groups each contain ROs at the same frequency domain position, and the S RO groups are rearranged as follows: namely, an array is performed for the RO groups of frequency division multiplexing in ascending order of the frequency domain resource index, and then an array is performed for the RO groups of time division multiplexing in ascending order of the time domain resource index.

[0235] For example, based on the first RO (or reference RO). One RO group may contain one or more first ROs (reference ROs). For example, the S RO groups are rearranged as follows: namely, an array is performed for the first ROs of the RO groups of (frequency division multiplexing of the first RO) in ascending order of the wavenumber domain resource index, and then an array is performed for the first ROs of the RO groups of (time division multiplexing of the first RO) in ascending order of the time domain resource index.

[0236] In some embodiments, the first RO refers to, for example, but is not limited to, the first RO in one RO group. The first RO in one RO group refers to, for example, the first RO rearranged as follows in the RO group: namely, an array is performed for the ROs of time division multiplexing in ascending order of the time domain resource index, and then an array is performed for the ROs of frequency division multiplexing in ascending order of the frequency domain resource index, or the first RO rearranged as follows in the RO group: namely, an array is performed for the ROs of frequency division multiplexing in ascending order of the frequency domain resource index, and then an array is performed for the ROs of time division multiplexing in ascending order of the time domain resource index.

[0237] The above period is, for example, the first period or the second period or the third period or the fourth period, and the above mapping period is, for example, the first mapping period or the second mapping period.

[0238] The embodiments described above illustrate examples of the present invention, but the present invention is not limited to these, and appropriate modifications can be made based on the embodiments described above. For example, each of the embodiments described above can be implemented individually, or a combination of several of the embodiments described above can be implemented.

[0239] In some embodiments, in the case of PRACH repetition, the terminal equipment may, for the first reason, fail to transmit PRACH at one, some, or all of the second ROs corresponding to a single RACH attempt, and / or, for the second reason, transmit PRACH at one, some, or all of the second ROs corresponding to a single RACH attempt with reduced transmission power. These will be explained in detail below.

[0240] In some embodiments, the primary cause includes, namely, power allocation for PUSCH / PUCCH / PRACH / SRS transmission (e.g., the sum of the PUSCH / PUCCH / PRACH / SRS transmit power and the PRACH transmit power is greater than the maximum transmit power), or power allocation in dual-connected EN-DC, NE-DC, or NR-DC operation, or determination of the slot format, or PUSCH / PUCCH / PRACH / SRS transmission opportunities being in the same slot, or a very small gap between PRACH transmission and PUSCH / PUCCH / SRS transmission, or DAPS operation, or HD-UE operation in paired frequency spectrum, etc.

[0241] In some embodiments, the second cause includes, namely, power allocation for PUSCH / PUCCH / PRACH / SRS transmission (for example, the sum of the transmit power of PUSCH / PUCCH / PRACH / SRS and the transmit power of PRACH is greater than the maximum transmit power), or power allocation in dual-connected EN-DC, NE-DC, or NR-DC operation.

[0242] In some embodiments, in the case of PRACH repetition, the first and / or second causes may include, for a single random access trial, the following situations may occur in PRACH transmission: (1) the terminal device does not transmit PRACH at each (all) second RO in a single random access trial, or transmits PRACH at reduced power; and (2) the terminal device does not transmit PRACH at some second ROs in a single random access trial, or transmits PRACH at reduced power. Of these, (2) includes, (2-1) the terminal device does not transmit PRACH at at least ninth or up to tenth second ROs in a single random access trial, or transmits PRACH at one second RO in a single random access trial.

[0243] In some embodiments, when the above-described situation occurs due to the first or second cause, the physical layer of the terminal device may notify the upper layer to suspend the preamble power ramping counter, or may not notify the upper layer to suspend the preamble power ramping counter (power ramping counter) (specifically, whether or not notification is made depends on the implementation of the terminal device), or may not notify the upper layer to suspend the preamble power ramping counter (power ramping counter). Each of these will be explained exemplified below.

[0244] Example 1: When a terminal device fails to send a PRACH in all (E) ROs (in the same RACH attempt) (due to the first cause), or sends a PRACH with reduced power in all (due to the second cause mentioned above), One method includes the following: the physical layer (Layer 1) notifies the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter; and Another method involves the following: the physical layer (Layer 1) notifies the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter. In other words, notification is optional; whether or not to notify depends on the implementation of the terminal device.

[0245] Example 2: Terminal devices are at least a portion (e.g., at least 1 (9th quantity) of (the same RACH trial), or more (9th quantity), or at least half (9th quantity), or more than half (9th quantity), or at least the 9th quantity (e.g., E / 2 or

[0246]

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[0248]

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[0249]

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[0250] Example 3: When the terminal device does not transmit a PRACH for some / F (ninth quantity) (e.g., F = 1, F < E) ROs (due to the first reason) in the same RACH attempt, or transmits a PRACH with reduced power (due to the second reason), One method includes the following, that is, the physical layer (Layer 1) notifies the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter; and Another method includes the following, that is, its physical layer (Layer 1) can notify the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter. That is, it may or may not notify, and whether to notify depends on the implementation of the terminal device.

[0251] For example, the methods of Example 1 and Example 3 can be implemented in combination. In the case of Example 1, one method is adopted, and in the case of Example 3, another method is adopted. Specifically, for example, when not transmitting a PRACH for all (E) ROs (due to the first reason) in the same RACH attempt, one method is adopted, and when not transmitting a PRACH for some ROs (due to the first reason) in the same RACH attempt, another method is adopted.

[0252] Example 4: When the terminal device has at most a part (tenth quantity) of the number (e.g., at least F (e.g., E = 1) and at most E - 1, or E - 1 or less, or at most half the number, or half or less, or at most the tenth quantity (e.g., E / 2 or

[0253]

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[0257] For example, the methods in Example 2 and Example 4 can be combined. One method can be used in the case of Example 2, and the other method in the case of Example 4. Specifically, for example, one method can be used when PRACH is not sent for E / 2 or more ROs, and the other method can be used when PRACH is not sent for at least one and a maximum of E / 2 ROs.

[0258] Example 5: When a terminal device does not send a PRACH at a specific RO (e.g., the first or last one) (in the same RACH attempt) (due to primary cause), or sends a PRACH with reduced power (due to secondary cause), One method includes the following: the physical layer (Layer 1) notifies the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter; and Another method includes the following: the physical layer (Layer 1) can notify the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter. In other words, notification is optional, and whether or not to notify is determined by the implementation of the terminal device.

[0259] In the examples above, the methods used when not sending RPACH or sending RPACH with reduced power are the same or different.

[0260] In some embodiments, in the case of PRACH repetition, when a terminal device changes the spatial domain transmission filter before the first PRACH transmission during a random access attempt for PRACH retransmission, the physical layer of the terminal device may notify the upper layer to suspend the preamble power ramping counter, or may not notify the upper layer to suspend the preamble power ramping counter. Of these, the spatial domain transmission filter is the same for PRACH transmissions of the same RACH attempt, so that the spatial domain transmission filter can only occur between PRACH transmissions of different RACH attempts, and for non-first RACH attempts, if the spatial domain transmission filter is changed before the first PRACH transmission / retransmission, the physical layer (Layer 1) notifies the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter.

[0261] In some embodiments, the physical layer (Layer 1) notifies the higher layer (e.g., MAC layer or MAC entity) to suspend the preamble power ramping counter before the first PRACH transmission / retransmission of a single (non-first) RACH attempt or before the first second RO.

[0262] In some embodiments, when the upper layer receives notification to suspend the preamble power ramping counter as described above, it sets the preamble power ramping counter in the same way as in the case of non-PRACH repetition.

[0263] For example, in the case of non-PRACH repetition, the preamble power ramping counter will not increment by 1 for the next PRACH transmission, the upper layer will increment by 1 if it has not received notification from the physical layer to suspend the preamble power ramping counter, the lower layer has not received an LBT failure instruction for the previous random access preamble transmission, and the SSB or CSI-RS selected for the previous random access preamble transmission remains unchanged.

[0264] In some embodiments, in the case of PRACH repetition, the preamble power ramping counter increments by 1 when the upper layer has not received notification from the physical layer to suspend the preamble power ramping counter, the first message repetition count does not increase, the lower layer has not received an LBT failure instruction for the previous random access preamble transmission, and the SSB or CSI-RS selected for the previous random access preamble transmission remains unchanged. In other words, how the upper layer sets the preamble power ramping counter may also depend on whether the first message repetition count has changed. For example, when the first message repetition count has changed / increased, the preamble power ramping counter does not increment by 1.

[0265] In some embodiments, when PRACH repetition occurs, the PRACH transmission power described above is calculated using the following method.

[0266] In some embodiments, transmitting with the reduced power described above means reducing the power to the power calculated using the following method, or reducing it to the power calculated using the following method.

[0267] In some embodiments, the terminal device calculates the transmit power for each PRACH transmission corresponding to a different second RO in a single random access trial. Alternatively, the terminal device calculates the transmit power for one (e.g., the first) second RO PRACH transmission in a single random access trial, and the other PRACH transmissions in the single random access trial employ the same power transmission as the PRACH transmission corresponding to that one second RO.

[0268] In some embodiments, the method for calculating the transmit power includes the following: the MAC layer calculates the target received power for one PRACH transmission in one random access trial, and the target received power is PREAMBLE_RECEIVED_TARGETPOWER = preambleReceivedTargetPower + DELTA_PREAMBLE + (PREAMBLE_POWER_RAMPINGCOUNTER - 1) × PREAMBLE_POWER_RAMPINGSTEP, where preambleReceivedTargetPower represents the preamble target received power, DELTA_PREAMBLE represents the power offset with respect to the preamble, PREAMBLE_POWER_RAMPINGCOUNTER is the preamble power ramping counter, which has an initial value of 1, and PREAMBLE_POWER_RAMPINGSTEP is the preamble power ramping step. Subsequently, the physical layer of the terminal device calculates the transmit power for PRACH transmission i based on the target received power, and the transmit power is

[0269]

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[0273] In some embodiments, the method for calculating the transmit power includes the following: the MAC layer calculates the total target receive power for all (possible) PRACH transmissions in a single random access trial (the quantity being equal to the number of second ROs corresponding to the random access trial and / or the number of first message repetitions employed by the random access trial), and the total target receive power PREAMBLE_RECEIVED_TARGETPOWER = preambleReceivedTargetPower + DELTA_PREAMBLE + (PREAMBLE_POWER_RAMPINGCOUNTER-1) × PREAMBLE_POWER_RAMPINGSTEP, and the total target receive Based on the power and the number of first message repetitions for the random access attempt, the target received power PREAMBLE_RECEIVED_TARGETPOWER, PREAMBLE_RECEIVED_TARGETPOWER = PREAMBLE_RECEIVED_TARGETPOWER - 10 * log10 (numRepetitionPerRachAttempt) for each PRACH transmission is determined, where numRepetitionPerRachAttempt represents the number of first message repetitions (equal to the number of second ROs corresponding to the random access attempt), and the meaning of the other parameters is as described above, so a detailed explanation is omitted here. Subsequently, the physical layer of the terminal equipment calculates the transmit power for the random access transmission based on the target received power, and the transmit power is

[0274]

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[0275] In some embodiments, the physical layer of the terminal equipment calculates the transmit power for each PRACH transmission of different ROs in a single RACH trial using the method described above, and uses the same or different parameters when calculating the transmit power for different ROs, including but not limited to RSRP or path loss. Alternatively, the physical layer of the terminal equipment calculates the PRACH transmission of one RO (e.g., the first) in only one RACH trial according to the method described above, and employs the same transmit power for the PRACH transmissions of other ROs as for the PRACH transmission of that one RO.

[0276] Figure 44 shows the implementation details of a random access procedure in an embodiment of the present invention, from the triggering of Msg1 to its transmission. As shown in Figure 44, this includes the following:

[0277] The random access procedure is triggered when the following events occur, namely, initial access for RRC_IDLE; RRC connection re-establishment procedure; DL or UL data arrives during the RRC_CONNECTED or RRC_INACTIVE period while the SDT process is running when the UL synchronization state is "asynchronous"; UL data arrives during the RRC_CONNECTED or RRC_INACTIVE period while the SDT process is running when there are no available PUCCH resources for SR; SR failure; requests during RRC synchronization re-establishment (e.g., switching); RRC connection recovery procedure in RRC_INACTIVE; establishing time alignment for secondary TAGs; other SI requests; beam failure recovery; persistent UL LBT failure (failure) in SpCell; SDT in RRC_INACTIVE; and for the purpose of positioning the RRC_CONNECTED period when the random access procedure is required.

[0278] Random access procedure initialization includes the following: selecting SUL or UL for the MAC layer, selecting BWP, selecting a random access resource set (including determining the applicability of Msg3 duplication, determining the applicability of SDT, determining the availability of the random access resource set, and selecting a random access resource set based on applicable features (determining the applicability of slicing based on the RRC layer and the applicability of RedCap)), selecting an RA type (2-step or 4-step), initializing parameters and variables for the random access procedure, and completing the initialization of the random access procedure.

[0279] The Msg1 transmission includes the following: the MAC layer selects a random access resource (including the selection of SSB or CSI-RS, setting the PREAMBLE_INDEX, and selecting the RO (providing a mapping relationship between SSB and RO to the upper layers)), performs random access preamble transmission (setting the target receive power, calculating the RA-RNTI (optional), and instructing the instructing physical layer to transmit the random access preamble using the selected RO, corresponding RA-RNTI, PREAMBLE_INDEX, and target receive power), the physical layer generates a reamble sequence, calculates the PRACH transmit power, maps the preamble sequence to the physical resource, generates the OFDM baseband signal for PRACH, and performs modulation and upconversion for PRACH.

[0280] In the process described above, selecting the RA resource set, selecting the RO, and calculating the PRACH transmit power may be done individually or in combination using the methods described in the previously mentioned embodiments, but the embodiments of the present invention are not limited thereto.

[0281] Although Figure 44 above illustrates an example of the present invention, the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description without being limited to the description in Figure 44.

[0282] Furthermore, the random access procedure of the present invention supports CBRA or CFRA, and the embodiments of the present invention are not limited thereto.

[0283] In some embodiments, for a 4-step CBRA for a Msg1-based SI request, the terminal device receives third configuration information (SI-RequestConfig), which includes settings for the Msg1-based SI request, and currently, among these, ra-ssb-OccasionMaskIndex indicates the permitted RO (or RO that can be used in the SI request) using the same method as the fifth information (in one case, ra-ssb-OccasionMaskIndex may be the fifth information), and the third configuration information may also include third information if it is necessary to support Msg1 duplication, for example, included in SI-RequestResources (used to configure the preamble and RO for the SI request), and / or the third configuration information may further include information to indicate the number of times the first message is duplicated.

[0284] In some embodiments, for a CFRA for Synchronization reconfiguration (eghandover), the terminal device receives fourth configuration information, which is used to set random access parameters specific to the CFRA. Currently, the ra-ssb-OccasionMaskIndex, used in the same way as the fifth information (in one case, ra-ssb-OccasionMaskIndex may also be the fifth information), has the same problems as the CBRA described above in indicating the permitted RO (or RO that can be used for the CFRA). Therefore, if it is also necessary to support Msg1 duplication, third information may be introduced into the fourth configuration information, for example, included in the SSB (used to set the SSB(index) and corresponding preamble and RO for the CFRA) in resources (used to set the downlink reference signal and corresponding preamble and RO for the CFRA), and / or, the fourth configuration information may further include information to indicate the number of first message duplications.

[0285] In some embodiments, for a CFRA for a BFR, the terminal equipment receives fifth configuration information, and this fifth configuration information, BeamFailureRecoveryConfig, is used to configure RACH resources and candidate beams for the BFR. Currently, using ra-ssb-OccasionMaskIndex to indicate the permitted RO (or RO that can be used for the CFRA) in the same way as the fifth information (in one case, ra-ssb-OccasionMaskIndex may be the fifth information) presents the same problems as described above for the CBRA. Therefore, if it is also necessary to support Msg1 duplication, third information may be introduced into the fifth configuration information, and / or information for indicating the number of times the first message is duplicated may be introduced into the fifth configuration information.

[0286] In some embodiments, for a CFRA triggered by a DCCH order, the DCI format 1_0 is used to trigger a random access procedure (i.e., a PDCCH order for triggering a random access procedure) when the CRC of DCI format 1_0 is scrambled by C-RNTI and all bits in the frequency domain resource assignment field FDRA “Frequency domain resource assignment” are set to 1. Of these, the CFRA is triggered when the preamble index indicated by the Random Access Preamble index is not 0b000000. Currently, using a PRACH Mask index to indicate the permitted ROs for SSB in a similar manner presents the same problems as the CBRA described above. Therefore, if it is also necessary to support Msg1 duplication, a third piece of information may be introduced into the DCI format 1_0, and / or, information for indicating the number of first message duplications may also be introduced into the DCI format 1_0. For example, the PRACH Mask index described above is still used, and the RO is indicated based on the correspondence between the PRACH Mask index value and the RO shown in the table below. This RO is the first RO in an RO group corresponding to the number of first message duplicates indicated by the above information in the DCI format 1_0, and the terminal device can then use the RO in that RO group to send the PRACH / preamble.

[0287] [Table 2] Embodiments of the present invention provide a method for supporting PARCH repetition, which includes transmit power, random access resource configuration, etc., thereby expanding PARCH coverage and enhancing uplink coverage, thereby improving network quality of service and reducing capital expenditures (CAPEX) and operating expenses (OPEX).

[0288] <Example of the second aspect> An embodiment of the present invention provides an information transmission and reception method, which is described from the perspective of network equipment. The same content as in the embodiment of the first aspect is omitted here.

[0289] Figure 39 shows an information transmission and reception method in an embodiment of the present invention. As shown in Figure 39, the method includes the following, namely: 3901: The network device receives the first message of a random access procedure on multiple first physical random access channel opportunities (PRACH occasions); and 3902: The network device sends a second message in response to the first message after the last of the multiple first PRACH occasions.

[0290] Although Figure 39 above illustrates an example of the present invention, the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be appropriately increased or decreased. Those skilled in the art can make appropriate modifications based on the above description without being limited to the description in Figure 39.

[0291] Figure 46 is a diagram showing an information transmission method in an embodiment of the present invention. As shown in Figure 46, the method includes the following: 4601: A network device transmits one or more secondary configuration pieces to a terminal device, each secondary configuration piece comprising one or more primary configuration pieces, each primary configuration piece comprising primary information for configuring a feature combination, and / or secondary information for configuring a random access preamble sequence, and / or third information for configuring RO group(s), and / or fourth information for configuring RO(s), and / or fifth information for configuring RO(s).

[0292] For details on the implementation methods of 3901-3902 and 4601, please refer to the examples in the first section; a detailed explanation is omitted here.

[0293] Although only the steps or processes relating to the present invention have been described above, the present invention is not limited thereto. The methods in the embodiments of the present invention may further include other steps or processes, and the specific details of these steps or processes can be found in the relevant art.

[0294] The embodiments described above illustrate examples of the present invention, but the present invention is not limited to these, and further appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0295] <Example of the third side> An information transmission and reception device is provided in an embodiment of the present invention. This device may be, for example, a terminal device, or one or more components or assemblies provided on a terminal device. Note that the same details as in the embodiment of the first aspect are omitted here.

[0296] Figure 40 shows an information transmission and reception device in an embodiment of the present invention. As shown in Figure 40, the information transmission and reception device 4000 includes the following, namely, First transmission unit 4001: transmits the first message (Msg1) of a random access procedure on multiple first physical random access channel opportunities (PRACH occasions, RO); and First receiving unit 4002: After the last of the plurality of first PRACH occasions, it receives a second message (Msg2) in response to the first message, or First receiving unit 4002: Receives one or more second configuration information transmitted by network equipment, one second configuration information includes one or more first configuration information, one first configuration information includes first information for setting feature combinations and / or second information for setting random access preamble sequences and / or third information for setting RO group(s) and / or fourth information for setting RO(s) and / or fifth information for setting RO(s).

[0297] In some embodiments, the implementation methods of the first transmitting unit 4001 and the first receiving unit 4002 may be described by referring to the embodiments on the first side, but a detailed explanation is omitted here.

[0298] The embodiments described above illustrate examples of the present invention, but the present invention is not limited to these, and further appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0299] Although only the individual components or modules relating to the present invention have been described above, the present invention is not limited to these. The information transmission and reception device 4000 may further include other components or modules, and the specific details of these components or modules can be found in the relevant technologies.

[0300] Furthermore, for convenience, Figure 40 only shows the connection relationships or signal directions between each component or module, but various related technologies such as bus connections may be employed as can be understood by those skilled in the art. The above-mentioned components or modules may be realized by hardware such as processors, memory devices, transmitters, and receivers, but the implementation of the present invention is not limited to these.

[0301] <Example of the fourth side view> An information transmission and reception device is provided in an embodiment of the present invention. This device may be, for example, a network device, or one or more components or assemblies arranged in a network device, and the same details as in the first or fourth embodiment are omitted here.

[0302] Figure 41 shows an information transmission and reception device in an embodiment of the present invention. As shown in Figure 41, the information transmission and reception device 4100 includes the following, namely, Second receiving unit 4101: receives the first message of a random access procedure in multiple first physical random access channel opportunities (PRACH occasions); and Second transmission unit 4102; transmits a second message in response to the first message after the last of the plurality of first PRACH occasions, or Second transmission unit 4102: Transmits one or more second configuration information to a terminal device, one second configuration information comprising one or more first configuration information, one first configuration information comprising first information for setting a feature combination, and / or second information for setting a random access preamble sequence, and / or third information for setting RO group(s), and / or fourth information for setting RO(s), and / or fifth information for setting RO(s).

[0303] In some embodiments, the implementation methods of the second receiving unit 4101 and the second transmitting unit 4102 can be found in the embodiments described in the first or fourth aspect, and a detailed explanation of these is omitted here.

[0304] The embodiments described above illustrate examples of the present invention, but the present invention is not limited to these, and appropriate modifications may be made based on the embodiments described above. For example, the embodiments described above may be used individually, or a combination of several of the embodiments described above may be used.

[0305] Although only the individual components or modules relating to the present invention have been described above, the present invention is not limited to these. The information transmitting and receiving device 4100 may further include other components or modules, and the specific details of these components or modules can be found in the relevant technologies.

[0306] Furthermore, for convenience, Figure 41 shows the connection relationships or signal directions between each component or module, but various related technologies such as bus connections may be used as can be understood by those skilled in the art. The above-mentioned components or modules may be realized by hardware such as processors, memory devices, transmitters, and receivers, but the implementation of the present invention is not limited thereto.

[0307] <Example of the fifth side> In this embodiment of the present invention, a communication system is further provided, which can be seen in Figure 1, where the same details as in the first to fourth embodiments are omitted.

[0308] In some embodiments, the communication system 100 includes at least a network device 101 and / or a terminal device 102, the network device 101 includes the information transmitting / receiving device 4100 in the embodiment of the fourth aspect, and the terminal device 102 includes the information transmitting / receiving device 4000 in the embodiment of the fifth aspect, a detailed description thereof is omitted here.

[0309] In embodiments of the present invention, network equipment is further provided, which may be, for example, a base station, but the present invention is not limited thereto, and may be other network equipment.

[0310] Figure 42 is a diagram showing the configuration of a network device in an embodiment of the present invention. As shown in Figure 42, the network device 4200 may include a processor 4210 (for example, a central processor CPU) and a memory unit 4220, the memory unit 4220 being connected to the processor 4210. The memory unit 4220 can store various data, as well as a program 4230 for information processing, and can execute the program 4230 under the control of the processor 4210.

[0311] For example, the processor 4210 may be configured to execute a program to implement the information transmission and reception method described in the first embodiment.

[0312] Furthermore, as shown in Figure 42, the network device 4200 may also include a transceiver 4240, an antenna 4250, and the functions of the aforementioned components are the same as in the prior art, and a detailed explanation is omitted here. Note that the network device 4200 does not need to include all the components shown in Figure 42, and the network device 4200 may also include components not shown in Figure 42; for these, prior art can be referenced.

[0313] In the embodiments of the present invention, terminal equipment is further provided, but the present invention is not limited thereto, and other equipment may also be provided.

[0314] Figure 43 shows a terminal device in an embodiment of the present invention. As shown in Figure 43, the terminal device 4300 may include a processor 4310 and a memory unit 4320, the memory unit 4320 which stores data and programs and is connected to the processor 4310. Note that this figure is merely illustrative, and telecommunications functions or other functions may be realized by supplementing or substituting other types of structures with this structure.

[0315] For example, the processor 4310 may be configured to implement the information transmission and reception method described in the second embodiment by executing a program.

[0316] As shown in Figure 43, the terminal device 4300 may further include a communication module 4330, an input unit 4340, a display 4350, a power supply 4360, and the like. Of these, the functions of the above-mentioned components are the same as in the prior art, and a detailed explanation is omitted here. Note that the terminal device 4300 does not need to include all the components shown in Figure 43. Furthermore, the terminal device 4300 may also include the components shown in Figure 43, for which prior art can be referenced.

[0317] In embodiments of the present invention, a computer program is further provided, and when the program is executed on a terminal device, the program causes the terminal device to execute the information transmission and reception method described in the second embodiment.

[0318] In embodiments of the present invention, a storage medium for a computer program is further provided, and the computer program causes a terminal device to execute the information transmission and reception method described in the second embodiment.

[0319] In embodiments of the present invention, a computer program is further provided, and when the program is executed on a network device, the program causes the network device to execute the information transmission and reception method described in the embodiment of the first aspect.

[0320] In an embodiment of the present invention, a storage medium storing a computer program is provided, wherein the computer program causes a network device to execute the information transmission and reception method described in the embodiment of the first aspect.

[0321] Furthermore, the above-described apparatus and method may be implemented by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, that is, the program, when executed by a logic component, causes the logic component to implement the above-described apparatus or component, or to the logic component to implement each of the above-described method or step. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processor used in a computer. The present invention further relates to a storage medium storing the above-described program, for example, a hard disk, a magnetic disk, an optical hard disk, a DVD, a flash memory, etc.

[0322] Furthermore, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may be implemented as a general-purpose processor, digital signal processor (DSP), application-specific set product (ASIC), field-programmable gate array (FPGA) or other programmable logic component, discrete gate or transistor logic component, discrete hardware assembly or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may further be configured as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors connected to a DSP by communication or any other combination of configurations.

[0323] Although preferred embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and any modifications to the present invention that do not deviate from the spirit of the invention fall within the technical scope of the present invention.

[0324] Furthermore, the following additional information is disclosed regarding the above-mentioned embodiments.

[0325] (Note 1) A method for transmitting and receiving information, which is applied to terminal equipment, and the method is The terminal device transmits the first message (Msg1) of a random access procedure in multiple first physical random access channel opportunities (PRACH occasions, RO); and The terminal device receives a second message (Msg2) in response to the first message after the last of the multiple first ROs.

[0326] (Note 2) The method described in Appendix 1, The aforementioned multiple first ROs belong to one RO group and / or to one set of random access resources.

[0327] (Note 3) The method described in Appendix 1 or 2, The aforementioned last first RO is the last RO in the aforementioned RO group.

[0328] (Note 4) The method described in Appendix 2, The aforementioned RO group belongs to the aforementioned random access resource set.

[0329] (Note 5) The method described in Appendix 2 or 3, The aforementioned random access resource set is configured by one or more pieces of information in the first configuration information, which includes first information for setting feature combinations.

[0330] (Note 6) The method described in Appendix 5, The feature combination set by the first information includes the first message overlap and / or the number of first message overlaps, and / or the number of first message overlaps includes the random access procedure and / or the random access trial corresponding to the first message and / or the number of first message overlaps adopted by the first message.

[0331] (Note 7) The method described in Appendix 6, The aforementioned random access resource set includes RO groups corresponding to the one or more instances of first message duplication.

[0332] (Note 8) The method described in Appendix 7, The number of ROs included in one (arbitrary) RO group(s) corresponding to one first message repetition count is equal to the first message repetition count, or the number of ROs included in one (arbitrary) RO group(s) corresponding to one first message repetition count is equal to the first message repetition count.

[0333] (Note 9) A method according to any one of the appendices 2 through 8, further, The terminal device includes selecting ROs from the random access resource set, specifically, the terminal device includes selecting the RO group from the random access resource set, or selecting one or more ROs in the RO group from the random access resource set.

[0334] (Note 10) The method described in Appendix 9, Selecting the RO group from the random access resource set includes selecting the RO group(s) in the random access resource set that correspond to the random access procedure and / or the random access attempts and / or the number of first message repetitions adopted by the first message.

[0335] (Note 11) The method described in Appendix 9, Selecting one or more ROs in the RO group from the random access resource set includes selecting one or more ROs in the RO group from the RO group(s) corresponding to the random access procedure and / or the random access attempts and / or the number of first message repetitions adopted by the first message in the random access resource set.

[0336] (Note 12) The method described in Appendix 9, 10, or 11, The aforementioned one or more ROs include the first RO.

[0337] (Note 13) The method described in Appendix 12, The first RO refers to the RO with the smallest first RO index, second RO index, or third RO index in the RO groups, and / or the first RO in the time domain.

[0338] (Note 14) A method described in any one of the appendices 1 to 13, further, The random access procedure includes the application to the first message duplication and / or one or more first message duplication counts.

[0339] (Note 15) The method described in Appendix 14, The aforementioned terminal device selects one or more sets of random access resources.

[0340] (Note 16) The method described in Appendix 15, The one or more sets of random access resources mentioned above are available for the first message repetition (Msg1 repetition) and / or the number of repetitions for Msg1.

[0341] (Note 17) The method described in Appendix 16, At least two of the aforementioned sets of random access resources are available for different first message duplication counts.

[0342] (Note 18) The method described in Appendix 16, For each random access attempt or Msg1 transmission, the terminal device selects ROs from one set of available random access resources for the first number of repetitions employed by the random access attempt and / or Msg1 transmission.

[0343] (Note 19) A method described in any one of the appendices 1 to 18, further, The terminal device includes determining, based on at least one of one or more first RSRP thresholds, whether the first message overlap and / or the number of first message overlaps applies to the random access procedure and / or the random access attempt corresponding to the first message and / or the first message.

[0344] (Note 20) The method described in Appendix 19, At least one of the one or more first RSRP thresholds includes the maximum value of the one or more first RSRP thresholds.

[0345] (Note 21) A method according to any one of the appendices 1 to 20, further, The terminal device adopts, based on at least one of one or more first RSRP thresholds, the first message repetition count adopted by one random access procedure and / or one random access attempt and / or one Msg1 transmission.

[0346] (Note 22) A method described in any one of the appendices 1 to 21, further, The terminal device receives the eighth piece of information transmitted by the network device, and includes determining at least the association between RO groups and / or SSBs and RO groups based on the eighth piece of information.

[0347] (Note 23) A method according to any one of the appendices 1 to 22, further, The terminal device includes receiving one or more second configuration pieces transmitted by the network device, where one second configuration piece includes one or more first configuration pieces, and one first configuration piece includes first information for setting a feature combination, and / or second information for setting a random access preamble sequence, and / or third information for setting an RO group(s), and / or fourth information for setting an RO(s), and / or fifth information for setting an RO(s).

[0348] (Note 24) The method described in Appendix 23, The aforementioned first configuration information is used to configure feature combinations and / or random access resource sets corresponding to those feature combinations.

[0349] (Note 25) The method described in Appendix 23, The aforementioned second configuration information is used to set / define random access parameters specific to a cell.

[0350] (Note 26) The method described in Appendix 23, One first setting information contains one of the aforementioned first information, and one first information is used to set one feature combination.

[0351] (Note 27) The method described in Appendix 23 or 26, A feature combination may or may not include a first message overlap and / or a first message overlap count; and / or a feature combination may include at most one first message overlap count, or may include multiple first message overlap counts.

[0352] (Note 28) The method described in Appendix 27, For a feature combination including multiple first message repetition counts, the random access preamble sequences corresponding to two of the multiple first message repetition counts are the same or different, and / or the ROs corresponding to two of the multiple first message repetition counts are the same or different.

[0353] (Note 29) The method described in Appendix 28, The ROs corresponding to the number of first message repetitions for two different random access preamble sequences are the same or different.

[0354] (Note 30) The method described in Appendix 28, The ROs corresponding to the number of first message repetitions for two different random access preamble sequences are different.

[0355] (Note 31) The method described in Appendix 28, The aforementioned sameness means having common parts, being completely identical, or being partially identical, while the aforementioned difference means having no common parts or being completely different.

[0356] (Note 32) The method described in Appendix 28, ROs corresponding to one first message repetition count include RO(s) included in the RO group(s) corresponding to the first message repetition count.

[0357] (Note 33) The method described in Appendix 27, For a single feature combination containing multiple first message repetition counts, the same ROs are included in RO groups corresponding to different first message repetition counts; or, the ROs included in RO groups with relatively small first message repetition counts are a subset of the ROs included in RO groups with relatively large first message repetition counts; or, the ROs included in RO groups with relatively large first message repetition counts are a subset of the ROs included in RO groups with relatively small first message repetition counts.

[0358] (Note 34) The method described in Appendix 27, For a single feature combination containing multiple first message repetition counts, the ROs corresponding to different first message repetition counts are the same, or the ROs corresponding to relatively small first message repetition counts are a subset of the ROs corresponding to relatively large first message repetition counts, or the ROs corresponding to relatively large first message repetition counts are a subset of the ROs corresponding to relatively small first message repetition counts.

[0359] (Note 35) A method described in any one of the appendices 23 to 34, The second piece of information is used to set up a random access preamble sequence for the feature combination set by the first piece of information.

[0360] (Note 38) A method described in any one of the appendices 23 to 35, For a feature combination containing multiple first message repetition counts, the second information sets up a corresponding random access preamble sequence for each different first message repetition count in the feature combination.

[0361] (Note 39) A method described in any one of the appendices 23 to 38, The second information comprises one or more first information elements (IEs), the first IEs being used to set up a random access preamble sequence corresponding to one first message repetition count, or the second information comprises one or more first information fields, the first information fields being used to set up a random access preamble sequence corresponding to one first message repetition count.

[0362] (Note 40) A method described in any one of the appendices 23 to 39, The aforementioned third information is used to set up corresponding RO group(s) for the feature combinations set by the aforementioned first information.

[0363] (Note 41) The method described in Appendix 40, The feature combination set by the aforementioned first information includes the first message overlap and / or the number of times the first message overlaps.

[0364] (Note 42) Any method of description from appendices 23 to 40, For a feature combination that includes multiple first message overlap counts, the third information sets up corresponding RO groups for each different first message overlap count in the feature combination.

[0365] (Note 43) A method described in any one of the appendices 23 to 42, The third information includes one or more second IEs, the second IEs being used to set up corresponding RO groups for one first message overlap count, or the third information includes one or more second information fields, the second information fields being used to set up corresponding RO groups for one first message overlap count.

[0366] (Note 44) A method described in any one of the appendices 23 to 43, The aforementioned third piece of information sets up RO group(s) for one (per) period or mapping cycle.

[0367] (Note 45) A method described in any one of the appendices 23 to 44, The aforementioned third information sets RO groups based on the first duplicate count and / or the first RO group index and / or the second RO group index and / or the first group index and / or the first RO index and / or the second RO index and / or the second group index.

[0368] (Note 46) The method described in Appendix 45, The first duplicate count is predefined, or set by the sixth piece of information for setting the first duplicate count, or set by the seventh piece of information for setting the first RSRP threshold for the first message duplicate.

[0369] (Note 47) The method described in Appendix 45, The aforementioned first repetition count includes the first message repetition count included in the feature combination set by the aforementioned first information.

[0370] (Note 48) The method described in Appendix 47, For a single feature combination that includes multiple first message repetition counts, the third information sets up RO groups corresponding to each first message repetition count based on the multiple first message repetition counts.

[0371] (Note 49) The method described in Appendix 48, The number of ROs included in one (arbitrary) RO group corresponding to one first message repetition count is equal to the aforementioned first message repetition count.

[0372] (Note 50) The method described in Appendix 45 or 46, The first duplicate count is the maximum value among the first message duplicate counts set in the second setting information (one or more first setting information), and / or the first message duplicate count corresponding to the minimum first RSRP threshold set by the seventh information, and / or the first message duplicate count corresponding to the first first RSRP threshold set by the seventh information, and / or the maximum value among the first message duplicate counts included in the feature combination set by the first information.

[0373] (Note 51) The method described in Appendix 45, The third information setting RO groups based on the first overlap count means that the third information indicates the RO group(s) corresponding to the first overlap count.

[0374] (Note 52) The method described in Appendix 51, The number of ROs included in the RO group corresponding to one (arbitrary) of the first repetition counts is equal to the said first repetition count.

[0375] (Note 53) The method described in Appendix 51, further, The terminal device includes determining the association between RO groups and / or SSBs and RO groups based on the first duplicate count and other information in the second configuration information.

[0376] (Note 54) The method described in Appendix 51, further, The terminal device includes determining one or more RO groups corresponding to the first message repetition counts included in the feature combination set by the first information based on the RO group(s) corresponding to the first repetition count.

[0377] (Note 55) A method described in any one of the appendices 45 to 54, The aforementioned first RO group index is used to uniquely identify one RO group within a single period or mapping cycle.

[0378] (Note 56) A method described in any one of the appendices 44 to 55, The aforementioned period is the first period, the second period, the third period, or the fourth period, and the aforementioned mapping period is the first mapping period or the second mapping period.

[0379] (Note 57) The method described in Appendix 55, The first RO group index represents the sequential number of an RO group(s) associated with one SSB within one of the aforementioned periods or mapping cycles, or the sequential number of an RO group(s) within the aforementioned period or mapping cycle.

[0380] (Note 58) The method described in Appendix 57, The number of ROs included in one of the RO group(s) is equal to the first number of duplicates.

[0381] (Note 59) A method described in any one of the appendices 45 to 54, The aforementioned second RO group index is used to uniquely identify one RO group within a set of RO groups within a single period or mapping cycle.

[0382] (Note 60) A method described in any one of the appendices 44 to 59, The aforementioned period is the first period, the second period, the third period, or the fourth period, and the aforementioned mapping period is the first mapping period or the second mapping period.

[0383] (Note 61) The method described in Appendix 55, The aforementioned second RO group index represents the sequential number of an RO group(s) associated with one SSB within the aforementioned set of RO group(s), or the sequential number of an RO group(s) within the aforementioned set of RO group(s).

[0384] (Note 62) The method described in Appendix 57, The number of ROs included in one of the RO group(s) is equal to the first number of duplicates.

[0385] (Note 63) A method described in any one of the appendices 45 to 54, The aforementioned first group index is used to uniquely label one set of RO group(s) within a single period or mapping cycle.

[0386] (Note 64) A method described in any one of the appendices 45 to 63, The aforementioned period is the first period, the second period, the third period, or the fourth period, and the aforementioned mapping period is the first mapping period or the second mapping period.

[0387] (Note 65) A method described in any one of the appendices 55 to 63, The first group index represents the sequential number of a set of RO group(s) associated with one SSB within the aforementioned period or mapping period, or the sequential number of a set of RO group(s) within the aforementioned period or mapping period.

[0388] (Note 66) The method described in Appendix 57, The number of ROs included in one of the RO group(s) is equal to the first number of duplicates.

[0389] (Note 67) The method described in Appendix 63, The number of RO groups included in the aforementioned set of RO groups is predefined or indicated by the network equipment.

[0390] (Note 68) The method described in Appendix 63, The RO groups included in a set of RO groups are determined based on the first RO group index.

[0391] (Note 69) A method described in any one of the appendices 23 to 68, The aforementioned third information includes a first RO group index, and / or a second RO group index, and / or a first group index, and / or a first bitmap, and / or a second bitmap, and / or an RO group mask index, and / or a first RIV value.

[0392] (Note 70) The method described in Appendix 69, In the first bitmap, one bit corresponds to one or more first RO group indexes, or one or more first group indexes, or one or more RO group(s), or one or more sets of RO group(s).

[0393] (Note 71) The method described in Appendix 69, In the aforementioned second bitmap, one bit corresponds to one or more second RO group indexes, or to one or more RO group(s) in a set of RO group(s).

[0394] (Note 72) The method described in Appendix 71, The second RO group index and / or the second bitmap and / or the RO group mask index and / or the first RIV value indicate RO groups within the RO groups indicated by the first bitmap.

[0395] (Note 73) The method described in Appendix 69, The aforementioned RO group mask index and / or first RIV value are defined based on the first RO group index and / or second RO group index.

[0396] (Note 74) A method described in any one of the appendices 45 to 54, The aforementioned first RO index is used to uniquely label one RO within a single period or mapping cycle.

[0397] (Note 75) The method described in Appendix 44 or 74, The aforementioned period is the first period, the second period, the third period, the fourth period, or one first association period, or one first association pattern period, and the aforementioned mapping period is the first mapping period, the second mapping period, or the third mapping period.

[0398] (Note 76) The method described in Appendix 74, The first RO index represents the sequential number of an RO associated with one SSB within one of the aforementioned periods or mapping cycles, or the sequential number of an RO within the aforementioned period or mapping cycle.

[0399] (Note 77) A method described in any one of the appendices 45 to 54, The aforementioned second RO index uniquely labels one RO within a set of ROs within a single period or mapping cycle.

[0400] (Note 78) The method described in Appendix 77, The aforementioned period is the first period, the second period, the third period, the fourth period, or one first association period, or one first association pattern period, and the aforementioned mapping period is the first mapping period, the second mapping period, or the third mapping period.

[0401] (Note 79) The method described in Appendix 74, The second RO index represents the sequential number of an RO associated with one SSB within the set of ROs, or the sequential number of an RO within the set of ROs.

[0402] (Note 80) A method described in any one of the appendices 45 to 54, The aforementioned second group index uniquely labels one set of ROs within a single period or mapping cycle.

[0403] (Note 81) The method described in Appendix 80, The aforementioned period is the first period, the second period, the third period, the fourth period, or one first association period, or one first association pattern period, and the aforementioned mapping period is the first mapping period, the second mapping period, or the third mapping period.

[0404] (Note 82) The method described in Appendix 74, The second group index represents the sequential number of a set of ROs associated with one SSB within the period or mapping cycle, or the sequential number of a set of ROs within the period or mapping cycle.

[0405] (Note 83) The method described in Appendix 80, The number of ROs included in the aforementioned set of ROs is predefined or indicated by the network equipment.

[0406] (Note 84) A method described in any one of the appendices 23 to 54, The aforementioned third information includes the first RO index, and / or the second RO index, and / or the second group index, and / or the third bitmap, and / or the fourth bitmap, and / or the RO mask index, and / or the second RIV value.

[0407] (Note 85) The method described in Appendix 84, The aforementioned third information indicates one RO group by indicating one or more ROs within that RO group.

[0408] (Note 86) A method described in any one of the appendices 23 to 85, For a single feature combination that includes multiple first message overlap counts, the fourth information sets ROs for each different first message overlap count.

[0409] (Note 87) The method described in Appendix 86, further, The aforementioned terminal device determines the mapping relationship between RO groups and / or SSBs based on the ROs indicated by the fourth piece of information.

[0410] (Note 88) The method described in Appendix 23, The fourth information above refers to (ROs) based on the first RO index and / or the second RO index and / or the third RO index and / or the second group index.

[0411] (Note 89) A method described in any one of the appendices 23 to 88, The fifth piece of information indicates (ROs) based on the third RO index, where the third RO index represents the sequential number of RO(s) associated with one SSB within one third mapping period.

[0412] (Note 90) A method described in any one of the appendices 23 to 88, The feature combination set by the first information contained in one first setting information includes the first message repetition (Msg1 repetition) and / or one or more first message repetition counts, the fifth information is absent, and / or the third information and / or fourth information are optionally present.

[0413] (Note 91) A method described in any one of the appendices 23 to 88, For a first configuration piece of information in which the feature combination set by one of the included first pieces of information includes a first message repetition (Msg1 repetition) and / or does not include the number of first message repetitions, the third piece of information and / or the fourth piece of information are absent.

[0414] (Note 92) A method described in any one of the appendices 23 to 88, One, with respect to the first setting information, the feature combination set by the included first information includes the first message repetition (Msg1 repetition) and / or one or more first message repetition counts, and the third and / or fourth information is optionally present.

[0415] (Note 93) A method described in any one of the appendices 1 to 92, A device that receives seventh information for setting one or more first RSRP thresholds, wherein at least one of the first RSRP thresholds is used by a terminal device to determine whether a first message duplication and / or one number of first message duplications applies to a random access procedure, and / or at least one of the first RSRP thresholds is used by a terminal device to determine the number of first message duplications that a random access attempt or one Msg1 transmission will employ.

[0416] (Note 94) A method according to any one of the appendices 1 to 93, further, The terminal device (or its physical layer) calculates the transmission power for each PRACH transmission corresponding to different second ROs in a single random access trial; or, the terminal device (or its physical layer) calculates the transmission power for one of the PRACH transmissions corresponding to a different second RO in a single random access trial, specifically the PRACH transmission corresponding to one of the second PRACH occasions.

[0417] (Note 95) The method described in Appendix 94, The parameters used when calculating the transmission power are either the same or different.

[0418] (Note 96) The method described in Appendix 94, When calculating the transmission power of the PRACH transmission corresponding to one of the second ROs, the other PRACH transmissions in the one random access trial are transmitted using the same power as the PRACH transmission corresponding to the one second RO.

[0419] (Note 97) A method described in any one of the appendices 94 to 96, The terminal device (its MAC layer) calculates the preamble target received power based on the number of times the first message is repeated.

[0420] (Note 98) The method described in Appendix 97, The terminal device (its MAC layer) calculates the preamble target received power based on the number of first message overlaps. Calculate the total (preamble) target received power for all PRACH transmissions in one random access trial; and This includes determining the (preamble) target receive power for one PRACH transmission based on the total target receive power and the number of first message overlaps in one random access trial.

[0421] (Note 99) A method described in any one of the appendices 94 to 98, The aforementioned second RO includes the first RO that actually sends the first message and / or the third RO that does not actually send the first message.

[0422] (Note 100) A method according to any one of the appendices 1 to 99, further, In the first case, the physical layer of the terminal device may notify the upper layer to suspend the preamble transmission count counter, or may not notify the upper layer to suspend the preamble transmission count counter (power ramping counter), In the first case, The terminal device fails to transmit PRACH or transmits PRACH with reduced power in each (all) second RO in a single random access trial; or The terminal device fails to transmit PRACH in a partial second RO in a single random access trial, or transmits PRACH with reduced power; or This includes the terminal device changing the spatial domain transmission filter before the first PRACH transmission in a single random access attempt.

[0423] (Note 101) The method described in Appendix 100, If the terminal device does not transmit PRACH or transmits PRACH with reduced power in some of the second ROs in a single random access trial, The terminal device fails to transmit PRACH or transmits PRACH with reduced power in at least ninth or up to tenth second ROs in a single random access trial; or The terminal device fails to transmit PRACH at a specific second RO in a single random access attempt; or The terminal device includes transmitting PRACH with reduced power in one second RO in one random access attempt.

[0424] (Note 102) Appendix 100 or 101, the specified persons When a higher layer receives notification from the physical layer to suspend the preamble transmission count, the preamble power ramping counter (PREAMBLE_POWER_RAMPINGCOUNTER) should not increase.

[0425] (Note 103) Appendix 100 or 101 or 102 states, The physical layer of the terminal device notifies the upper layer to suspend the preamble transmission count before the first PRACH transmission in a random access attempt.

[0426] (Note 104) The method described in any one of the appendices 1 to 103, ROs associated with the same SSB index are sorted within the first period in the order of "time domain first, then frequency domain," and of these, each first quantity (R) of ROs belongs to the same RO group; or ROs associated with the same SSB index are sorted in the order of "time domain first, then frequency domain" within the first period, and among them, for ROs with the same frequency resource index, each first quantity (R) of ROs belongs to the same RO group; or Among the ROs associated with the same SSB index, those ROs of the same frequency resource index are sorted within the first period in the order of "time domain first, then frequency domain," and then the first quantity (R) of ROs for each belong to the same RO group.

[0427] (Note 105) The method described in Appendix 104, When determining an RO group, one SSB index is associated with ROs at the same frequency domain location at different time domain locations, and frequency hopping is performed.

[0428] (Note 106) The method described in Appendix 104 or 105, The mapping relationship between the SSB index and the RO group overlaps in the first period, and the first period includes a second quantity (K) of association pattern periods and / or a second parameter quantity (G2) of first mapping periods.

[0429] (Note 107) The method described in Appendix 106, The first period shall not exceed the first time length, the first time length being predefined and / or indicated by the network equipment.

[0430] (Note 108) The method described in Appendix 107, The first time length is 160ms, 320ms, 640ms, 1280ms, or 160 × 8ms, or is related to the first quantity, and the first quantity is related to the second number of repetitions.

[0431] (Note 109) The method described in any one of the appendices 1 to 103, The ROs in the third period are rearranged in the second period in the order of "first in the time domain, then in the frequency domain," and of which, each first quantity (R) of ROs belongs to the same RO group; or ROs within the third period are sorted in the second period in the order of "time domain first, then frequency domain," and among them, for ROs having the same frequency resource index, each first quantity (R) of ROs belongs to the same RO group; or Among the ROs within the third period, ROs belonging to the same frequency resource index are sorted one by one in the second period in "time domain first," and among them, the first quantity (R) ROs for each belong to the same RO group.

[0432] (Note 110) The method described in Appendix 109, When determining an RO group, one SSB index is associated with ROs at the same frequency domain location at different time domain locations, and frequency hopping is performed.

[0433] (Note 111) A method described in any one of the appendices 109 to 110, The aforementioned second period includes a fourth quantity of second mapping periods and / or a fifth quantity of (K2) third periods and / or a sixth quantity of fourth periods.

[0434] (Note 112) A method described in any one of the appendices 100 to 111, The second period includes an integer number of fourth periods, the fourth period includes an integer number of third periods, the third period includes an integer number of RO groups, and one fourth period includes an integer number of second mapping periods; or The aforementioned second period includes an integer number (K2) third periods, and one third period includes an integer number (T2) second mapping periods, and the number of RO groups and / or the number of second mapping periods included in different third periods within the aforementioned second period are the same or different; or The aforementioned second period includes an integer number (K2) third periods, each third period includes an integer number of RO groups, and the number of RO groups and / or the number of second mapping cycles included in different third periods within the aforementioned second period are the same or different.

[0435] (Note 113) A method described in any one of the appendices 109 to 112, The aforementioned second period shall not exceed the second time length, and the aforementioned second time length shall be predefined and / or indicated by the network equipment.

[0436] (Note 114) A method described in any one of the appendices 109 to 113, The second time length is 160ms, 320ms, 640ms, 1280ms, or 160 × 8ms, or is related to the first quantity, and the first quantity is related to the second number of repetitions.

[0437] (Note 115) A method described in any one of the appendices 109 to 114, The aforementioned third period includes seventh quantity (K1) PARCH setting periods.

[0438] (Note 116) A method described in any one of the appendices 103 to 115, Within the first period and / or the second period and / or the third period and / or the fourth period and / or the first mapping period and / or the second mapping period, the eighth quantity (S) RO groups associated with one SSB index are sorted in the order of "time domain first, then frequency domain" or "frequency domain first, then time domain".

[0439] (Note 117) A method for receiving information, which is applied to terminal equipment, and the method is The terminal device receives one or more second configuration pieces transmitted by the network device, One second configuration information includes one or more first configuration information, and one first configuration information includes first information for configuring a feature combination, and / or second information for configuring a random access preamble sequence, and / or third information for configuring RO group(s), and / or fourth information for configuring RO(s), and / or fifth information for configuring RO(s).

[0440] (Note 118) A method for calculating power, A terminal device (or its physical layer) calculates the transmit power for each PRACH transmission corresponding to different second ROs in a single random access trial; or, the terminal device (or its physical layer) calculates the transmit power for one of the PRACH transmissions corresponding to a second PRACH occasion in a single random access trial, for PRACH transmissions corresponding to different second ROs.

[0441] (Note 119) A counting device processing method, In the first case, the physical layer of the terminal device notifies the upper layer to suspend the preamble transmission count, or can notify the upper layer to suspend the preamble transmission count, or does not notify the upper layer to suspend the preamble transmission count (power ramping counter). The first case mentioned above includes the following, namely, The terminal device does not transmit PRACH or transmits PRACH with reduced power in each (all) second RO in a single random access trial; or The terminal device fails to transmit PRACH or transmits PRACH with reduced power in some of the second ROs in a single random access trial; or The terminal device modifies the spatial domain transmission filter before the first PRACH transmission in a single random access attempt.

[0442] (Note 120) A method for determining random access opportunities, ROs associated with the same SSB index are sorted in the order of "time domain first, then frequency domain" within the first period, and of which, each first quantity (R) of ROs belongs to the same RO group; or ROs associated with the same SSB index are sorted in the first period in the order of "time domain first, then frequency domain," and among them, for ROs with the same frequency resource index, each first quantity (R) of ROs belongs to the same RO group; or Among the ROs associated with the same SSB index, ROs of the same frequency resource index are sorted one by one in order of time domain within the first period, and each of the first number (R) ROs belongs to the same RO group; or The ROs in the third period are rearranged in the second period in the order of "first in the time domain, then in the frequency domain," and of which, each first quantity (R) of ROs belongs to the same RO group; or ROs within the third period are sorted in the second period in the order of "time domain first, then frequency domain," and among them, for ROs having the same frequency resource index, each first quantity (R) of ROs belongs to the same RO group; or Among the ROs in the third period, each RO with the same frequency resource index is sorted in time domain order first in the second period, and among them, each first quantity (R) of ROs belongs to the same RO group; or Within the first period and / or the second period and / or the third period and / or the fourth period and / or the first mapping period and / or the second mapping period, the eighth quantity (S) RO groups associated with one SSB index are sorted in the order of time domain first, then frequency domain, or frequency domain first, then time domain.

[0443] (Note 121) A method for receiving information, which is applied to terminal equipment, and the method is The terminal device receives third configuration information and / or fourth configuration information and / or fifth configuration information and / or DCI, and the third configuration information and / or fourth configuration information and / or fifth configuration information and / or DCI includes third information for setting RO group(s) and / or information for indicating the number of times the first message is repeated. The aforementioned third configuration information includes settings for the first message-based SI request. The aforementioned fourth configuration information is used to set random access parameters specific to CFRA. The fifth configuration information is used to configure RACH resources and candidate beams for BFR. The DCI is used to trigger a random access procedure, and all bits in the frequency domain resource allocation area of ​​the DCI are set to 1.

[0444] (Note 122) A method for transmitting and receiving information, which is applied to network equipment, and the method is The network device receives the first message of a random access procedure on multiple first physical random access channel opportunities (PRACH occasions, ROs); The network device receives a second message in response to the first message after the last of the multiple first PRACH occasions.

[0445] (Note 123) A method for receiving information, which is applied to network equipment, and the method is The network device transmits one or more second configuration information and / or third configuration information and / or fourth configuration information and / or fifth configuration information and / or DCI, Of these, one second setting information includes one or more first setting information, and one first setting information includes first information for setting feature combinations, and / or second information for setting random access preamble sequences, and / or third information for setting RO group(s), and / or fourth information for setting RO(s), and / or fifth information for setting RO(s), The third setting information and / or the fourth setting information and / or the fifth setting information and / or DCI includes third information for setting RO group(s) and / or information for indicating the number of times the first message is repeated. Of these, the third configuration information includes the settings for the first message-based SI request, The aforementioned fourth configuration information is used to set random access parameters specific to CFRA. The aforementioned fifth configuration information is used to configure the BFR's RACH resources and candidate beams. The DCI is used to trigger a random access procedure, and all bits in the frequency domain resource allocation area of ​​the DCI are set to 1.

[0446] (Note 124) Terminal device, A device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program and implement the method described in any one of the items 1 to 121.

[0447] (Note 125) Network equipment, Including memory and processing units, The memory device stores a computer program, and the processor is configured to execute the computer program to implement the method described in Appendix 122 or 123.

[0448] (Note 126) A communication system including terminal equipment as described in Appendix 124 and / or network equipment as described in Appendix 125.

Claims

1. An information receiving device, which is applied to terminal equipment, and the device is A device comprising a first receiving unit that receives one or more second configuration information transmitted by a network device, wherein one second configuration information comprises one or more first configuration information, and one first configuration information comprises first information for setting a feature combination, and / or second information for setting a random access preamble sequence, and / or third information for setting an RO group(s), and / or fourth information for setting an RO(s), and / or fifth information for setting an RO(s).

2. The apparatus according to claim 1, The first configuration information is used to configure a feature combination and / or a random access resource set corresponding to the feature combination, and the second configuration information is used to configure / define random access parameters specific to a cell.

3. The apparatus according to claim 1, A device in which one first setting information contains one such first information, and one first information is used to set one feature combination.

4. The apparatus according to claim 1, One feature combination may or may not include the first message overlap and / or the number of first message overlaps; and / or A device in which a single feature combination includes a maximum of one first message repetition count, or multiple first message repetition counts.

5. The apparatus according to claim 1, The second information is used to set a random access preamble sequence for the feature combination set by the first information, in a device.

6. The apparatus according to claim 1, The apparatus uses the aforementioned third information to set up a corresponding RO group(s) for the feature combination set up by the aforementioned first information.

7. The apparatus according to claim 1, The device wherein the third information sets RO group(s) for one (per) period or mapping cycle; and / or the third information sets RO groups based on the first overlap count and / or the first RO group index and / or the second RO group index and / or the first group index and / or the first RO index and / or the second RO index and / or the second group index.

8. The apparatus according to claim 7, The device wherein the first duplicate count is predefined, or set by sixth information for setting the first duplicate count, or set by seventh information for setting the first RSRP threshold for the first message duplicate.

9. The apparatus according to claim 7, The first RO group index is a device that uniquely labels one RO group within one period or mapping cycle.

10. The apparatus according to claim 7, The aforementioned second RO group index is a device that uniquely labels one RO group within a set of RO groups within a single period or mapping cycle.

11. The apparatus according to claim 7, The aforementioned first group index is a device that uniquely labels one set of RO group(s) within one period or mapping cycle.

12. The apparatus according to claim 9, 10, or 11, The apparatus wherein the aforementioned period is the first period, the second period, the third period, or the fourth period, and the aforementioned mapping period is the first mapping period or the second mapping period.

13. The apparatus according to claim 7, The aforementioned first RO index is a device that uniquely labels one RO within one period or mapping cycle.

14. The apparatus according to claim 7, The aforementioned second RO index is a device that uniquely labels one RO in a set of ROs within one period or mapping cycle.

15. The apparatus according to claim 7, The aforementioned second group index is a device that uniquely labels one set of ROs within one period or mapping cycle.

16. The apparatus according to claim 13, 14, or 15, The apparatus wherein the aforementioned period is a first period, a second period, a third period, a fourth period, a first association period, or a first association pattern period, and the mapping period is a first mapping period, a second mapping period, or a third mapping period.

17. The apparatus according to claim 1, The apparatus wherein the third information includes a first RO group index and / or a second RO group index and / or a first group index and / or a first bitmap and / or a second bitmap and / or an RO group mask index and / or a first RIV value, and / or the third information includes a first RO index and / or a second RO index and / or a second group index and / or a third bitmap and / or a fourth bitmap and / or an RO mask index and / or a second RIV value.

18. The apparatus according to claim 17, The aforementioned third information is a device that directs one RO group by directing one or more ROs in one RO group.

19. The apparatus according to claim 1, The fifth piece of information indicates (ROs) based on a third RO index, and the third RO index represents the sequential number of RO(s) associated with one SSB within one third mapping cycle, in the apparatus.

20. An information transmission device, which is applied to network equipment, and the device is Includes a first transmission unit that transmits one or more second configuration information to a terminal device, A device in which one second configuration information includes one or more first configuration information, and one first configuration information includes first information for configuring a feature combination, and / or second information for configuring a random access preamble sequence, and / or third information for configuring an RO group(s), and / or fourth information for configuring an RO(s), and / or fifth information for configuring an RO(s).

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