Method and apparatus for transmitting physical random access channels
The method for multiplexing PRACH transmissions addresses the challenge of setting ROs for multiple PRACH occasions, improving uplink coverage by enhancing energy transmission and reception accuracy.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- 1FINITY INC
- Filing Date
- 2023-04-07
- Publication Date
- 2026-04-14
AI Technical Summary
Conventional technologies lack a method for setting RO (RACH Occasion) for multiple PRACH transmissions, necessitating a solution to determine the specific location of PRACH occasions for enhanced uplink coverage in areas with weak signal strength.
A method and apparatus for setting and transmitting physical random access channels (PRACH) that allow for time-domain, frequency-domain, or time-and-frequency-domain multiplexing of active ROs, enabling multiple PRACH transmissions.
Enhances the energy transmitted by terminal equipment, improving the likelihood and accuracy of network equipment receiving PRACH transmissions, thereby enhancing uplink coverage.
Smart Images

Figure 2026511936000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of communications.
Background Art
[0002] In order to enhance the uplink coverage of the base station, in NR Rel-18, the following has been studied, that is, by multiple PRACH (Physical Random Access Channel) transmissions, the power of the UE to transmit the PRACH (Physical Random Access Channel) is enhanced, so that the base station can receive the PRACH transmitted by the UE in the area with weak coverage, thereby enhancing the uplink coverage of the base station.
[0003] In the existing initial access PRACH resource setting scheme, related PRACH resource information, such as rach-ConfigCommon and additionalRACH-ConfigList-r17, is set in the system information. PRACH resource information such as the frequency domain resource of the PRACH and the PRACH configuration Index is set by the RRC.
[0004] Note that the introduction of the above background art is for clearly and completely explaining the technical solution of the present invention and making it easy for those skilled in the art to understand. 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
[0005] Currently, time-domain resource-related information for PRACH occasions can be obtained by looking up the PRACH configuration table using the PRACH configuration index set by RRC. Table 1 is an example of a PRACH configuration table.
[0006] [Table 1] Furthermore, Rel-18 confirms that the PRACH occasion for multiple PRACH transmission is set by the RO set (RO group in the diagram).
[0007] However, conventional technologies only have resource setting schemes for single PRACH transmission, and there is no method for setting RO (RACH Occasion, random access opportunity) for multiple PRACH transmission. In the case of schemes with multiple PRACH transmissions, it is necessary to determine the specific location of the PRACH occasion, and the problem that needs to be solved is how to set RO for schemes with multiple PRACH transmissions.
[0008] To solve one or more of the above-mentioned problems, embodiments of the present invention provide a transmission method and apparatus for a physical random access channel. That is, for one or more of the above-mentioned problems, embodiments of the present invention provide a corresponding solution scheme. [Means for solving the problem]
[0009] According to a first aspect of an embodiment of the present invention, a physical random access channel (PRACH) transmission device is provided, the device is installed in terminal equipment, the device includes a first transmitting unit which is used to transmit a second quantity of PRACH with a first quantity of active RO, the first quantity of active RO being time-domain multiplexed, or the first quantity of active RO being frequency-domain multiplexed, or the first quantity of active RO being time-domain and frequency-domain multiplexed, the first quantity and the second quantity being positive integers of 2 or more.
[0010] According to a second aspect of an embodiment of the present invention, an RO setting device is provided, the device is installed in a network device, the device includes a first setting unit, which is used to set a first quantity of active ROs in a terminal device that transmits a second quantity of PRACH, the first quantity of active ROs being time-domain multiplexed, or the first quantity of active ROs being frequency-domain multiplexed, or the first quantity of active ROs being time-domain and frequency-domain multiplexed, the first quantity and the second quantity being positive integers of 2 or more.
[0011] According to a third aspect of an embodiment of the present invention, a transmission device for a physical random access channel (PRACH) is provided, the device is installed in a terminal device, the device includes a second transmitting unit, which is used to transmit a second quantity of PRACH with a first quantity of active ROs, the first quantity of active ROs including a seventh quantity of ROs of a PRACH having a second quantity of ROs in the time domain, or a seventh quantity of ROs adjacent in the time domain from the starting RO, or the first quantity of active ROs including a seventh quantity of ROs of a PRACH having a second quantity of ROs in the frequency domain, or a seventh quantity of ROs adjacent in the frequency domain from the starting RO, or the first quantity of active ROs including a seventh quantity of ROs of a PRACH having a second quantity of ROs, the first quantity of active ROs including a second quantity of ROs of a PRACH having a second quantity of ROs, the first quantity of active ROs including a seventh quantity of ROs of a PRACH having a second quantity of ROs, the first quantity of active ROs including
[0012] According to a fourth aspect of an embodiment of the present invention, an RO setting device is provided, the device is installed in a network device, the device includes a second setting unit, which is used to set a first quantity of active ROs in a terminal device that transmits a second quantity of PRACH, the first quantity of active ROs includes a seventh quantity of ROs of PRACHs where the RO in the time domain is a second quantity, or a seventh quantity of ROs adjacent in the time domain from the starting RO, or the first quantity of active ROs includes a seventh quantity of ROs of PRACHs where the RO in the frequency domain is a second quantity, or a seventh quantity of ROs adjacent in the frequency domain from the starting RO, or the first quantity of active ROs includes a seventh quantity of ROs of PRACHs where the RO in the frequency domain is a second quantity,
[0013] According to the fifth aspect of the embodiment of the present invention, a terminal device is provided, the terminal device including the device described in the first or third aspect of the embodiment of the present invention.
[0014] According to the sixth aspect of the embodiment of the present invention, a network device is provided, the network device including the device described in the second or fourth aspect of the embodiment of the present invention.
[0015] According to the seventh aspect of the embodiment of the present invention, a communication system is provided, the communication system including terminal equipment described in the fifth aspect of the embodiment of the present invention and / or network equipment described in the sixth aspect.
[0016] According to the eighth aspect of an embodiment of the present invention, a method for transmitting a physical random access channel (PRACH) is provided, the method comprising a terminal device transmitting a second quantity of PRACH with a first quantity of active ROs, wherein the first quantity of active ROs is time-domain multiplexed, or the first quantity of active ROs is frequency-domain multiplexed, or the first quantity of active ROs is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0017] According to the ninth aspect of an embodiment of the present invention, an RO setting method is provided, which includes setting a first quantity of active ROs to which a network device transmits a second quantity of PRACH to a terminal device, wherein the first quantity of active ROs is time-domain multiplexed, or the first quantity of active ROs is frequency-domain multiplexed, or the first quantity of active ROs is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0018] According to the tenth aspect of an embodiment of the present invention, a method for transmitting a physical random access channel (PRACH) is provided, the method comprising a terminal device transmitting a second quantity of PRACH with a first quantity of active ROs, wherein the first quantity of active ROs includes a seventh quantity of ROs of a PRACH having a second quantity of ROs in the time domain, or a seventh quantity of ROs adjacent in the time domain from the starting RO, or the first quantity of active ROs includes a seventh quantity of ROs of a PRACH having a second quantity of ROs in the frequency domain, or a seventh quantity of ROs adjacent in the frequency domain from the starting RO, or the first quantity of active ROs includes a seventh quantity of ROs of a PRACH having a second quantity of ROs, where the same SSB is mapped from the starting RO.
[0019] According to an eleventh aspect of an embodiment of the present invention, a method for setting an RO is provided, the method comprising setting a first quantity of active ROs to which a network device transmits a second quantity of PRACHs to a terminal device, wherein the first quantity of active ROs includes a seventh quantity of ROs of PRACHs having a second quantity of ROs in the time domain, or a seventh quantity of ROs adjacent in the time domain from the starting RO, to which the same SSB is mapped from the starting RO; or the first quantity of active ROs includes a seventh quantity of ROs of PRACHs having a second quantity of ROs in the frequency domain, to which the same SSB is mapped from the starting RO; or the first quantity of active ROs includes a seventh quantity of ROs of PRACHs having a second quantity of ROs, to which the same SSB is mapped from the starting RO.
[0020] According to the twelfth aspect of an embodiment of the present invention, a computer-readable program is provided, and when the program is executed on a physical random access channel transmission device or terminal equipment, the program causes the physical random access channel transmission device or terminal equipment to execute the physical random access channel transmission method described in the eighth or tenth aspect of an embodiment of the present invention.
[0021] According to the thirteenth aspect of the embodiment of the present invention, a computer-readable program is provided, and when the program is executed on an RO setting device or network equipment, the program causes the RO setting device or network equipment to execute the RO setting method described in the ninth or eleventh aspect of the embodiment of the present invention.
[0022] According to the fourteenth aspect of an embodiment of the present invention, a storage medium is provided that stores a computer-readable program, and the computer-readable program causes a physical random access channel transmission device or terminal equipment to execute the physical random access channel transmission method described in the eighth or tenth aspect of an embodiment of the present invention.
[0023] According to the fifteenth aspect of the embodiment of the present invention, a storage medium is provided which stores a computer-readable program, and the computer-readable program causes an RO setting device or network equipment to execute the RO setting method described in the ninth or eleventh aspect of the embodiment of the present invention. [Effects of the Invention]
[0024] The advantageous effects of the embodiments of the present invention are at least as follows: by providing an RO setting mechanism for multiple PRACH transmissions, terminal equipment (UEs) in areas with poor coverage can be made to perform multiple PRACH transmissions, thereby enhancing the energy transmitted by terminal equipment through access channels and improving the likelihood and accuracy of network equipment receiving PRACH transmissions from terminal equipment, thereby enhancing the uplink coverage of network equipment.
[0025] In addition, in the embodiments of the present invention, a method for determining the RO of multiple PRACH transmissions has been proposed, and the network device and the terminal device can be made to have a consistent definition for the PRACH occasion of multiple PRACH, so that the network device can be made to jointly detect the RO of multiple PRACH, and the detection efficiency of the network device for multiple PRACH can be improved.
[0026] Specific embodiments of the present invention will be disclosed in detail by referring to the following description and drawings, showing aspects in which the principles of the present invention can be adopted. It should be noted that the embodiments of the present invention are not limited in scope by these. Within the scope of the appended claims, the embodiments of the present invention may include various changes, modifications, and substitutions.
[0027] In addition, the features described and / or shown in one embodiment can be used in one or more other embodiments in the same or similar manner, combined with the features in other embodiments, or replace the features in other embodiments.
[0028] It should be noted that terms such as "comprising / having", when used in this specification, refer to the presence of features, elements, steps, or assemblies, but also refer to the fact that they do not exclude the presence or addition of one or more other features, elements, steps, or assemblies.
Brief Description of Drawings
[0029] The elements and features described in one drawing or one embodiment of the present invention can be combined with the elements and features shown in one or more other drawings or embodiments. Also, in the drawings, like reference numerals indicate corresponding parts in several drawings and are also used to indicate corresponding parts used in multiple embodiments. [Figure 1] It is a diagram showing a communication system in an embodiment of the present invention. [Figure 2]This figure shows a method for transmitting a physical random access channel (PRACH) according to Embodiment 1 of the present invention. [Figure 3] This figure shows the mapping of SSB and RO in Example 1 of the present invention. [Figure 4] This figure shows the RO set that is time-domain multiplexed in Example 1 of the present invention. [Figure 5] This is another figure showing the RO set that is time-domain multiplexed in Example 1 of the present invention. [Figure 6] This is another figure showing the mapping of SSB and RO in Example 1 of the present invention. [Figure 7] This figure shows the RO set that is frequency-domain multiplexed in Example 1 of the present invention. [Figure 8] This is another figure showing the RO set that is frequency-domain multiplexed in Embodiment 1 of the present invention. [Figure 9] This is another figure showing the mapping of SSB and RO in Example 1 of the present invention. [Figure 10] This figure shows the RO set that is multiplexed in the time domain and frequency domain in Example 1 of the present invention. [Figure 11] This is another figure showing the RO set that is multiplexed in the time domain and frequency domain in Embodiment 1 of the present invention. [Figure 12] This is another figure showing the RO set that is multiplexed in the time domain and frequency domain in Example 1 of the present invention. [Figure 13] This figure shows that in Embodiment 1 of the present invention, the RO set index is determined first in the frequency domain and then in the time domain. [Figure 14] This is another figure showing that in Embodiment 1 of the present invention, the RO set index is determined first in the frequency domain and then in the time domain. [Figure 15] This is another figure showing that in Embodiment 1 of the present invention, the RO set index is determined first in the frequency domain and then in the time domain. [Figure 16] This figure shows that in Embodiment 1 of the present invention, the RO set index is determined first in the time domain, and then in the frequency domain. [Figure 17] This is another figure showing that in Embodiment 1 of the present invention, the RO set index is determined first in the time domain and then in the frequency domain. [Figure 18] This is another figure showing that in Embodiment 1 of the present invention, the RO set index is determined first in the time domain and then in the frequency domain. [Figure 19] This figure shows the mapping RO set in Example 1 of the present invention. [Figure 20] This figure shows the RO setting method in Example 2 of the present invention. [Figure 21] This figure shows a multiple PRACH configuration list in Example 2 of the present invention. [Figure 22] This is another figure showing a multiple PRACH configuration list in Embodiment 2 of the present invention. [Figure 23] This figure shows a transmission method for a physical random access channel in Embodiment 3 of the present invention. [Figure 24] This figure shows a transmission method for a physical random access channel in Embodiment 4 of the present invention. [Figure 25] This figure shows the RO setting method in Example 5 of the present invention. [Figure 26] This figure shows a transmission device for a physical random access channel in Embodiment 6 of the present invention. [Figure 27] This figure shows an RO setting device in Example 7 of the present invention. [Figure 28] This figure shows a transmission device for a physical random access channel in Embodiment 8 of the present invention. [Figure 29] This figure shows the RO setting device in Example 9 of the present invention. [Figure 30] This is a block diagram showing the system configuration of terminal equipment in Embodiment 10 of the present invention. [Figure 31] This is a block diagram showing the system configuration of network equipment in Embodiment 11 of the present invention. [Modes for carrying out the invention]
[0030] 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, that is, it includes all modifications, variations, and substitutions within the scope of the attached claims.
[0031] 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 NR (New Radio), LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (Wideband Code Division Multiple Access), HSPA (High-Speed Packet Access), etc.
[0032] 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.
[0033] 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: nodes and / or donors in an IAB architecture, 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.
[0034] 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, which depends on the context in which the term is used.
[0035] In embodiments of the present invention, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer to, for example, a device that accesses a communication network via network equipment and receives 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.
[0036] 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.
[0037] Furthermore, in scenarios such as IoT (Internet of Things), user devices may also be monitoring or measuring equipment or devices, and 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.
[0038] Furthermore, the terms “network side” or “network device 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 device 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, “device” may refer to network equipment or terminal equipment.
[0039] The following examples illustrate the scenarios and problems associated with embodiments of the present invention, but the embodiments of the present invention are not limited thereto.
[0040] Figure 1 shows a communication system in an embodiment of the present invention. As shown in Figure 1, the communication system 100 may include network equipment 101 and terminal equipment 102.
[0041] In embodiments of the present invention, existing business operations (traffic / services) or future business operations can be transmitted between the network device 101 and the terminal device 102. For example, these operations include, but are not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), and URLLC (Ultra-Reliable and Low-Latency Communication).
[0042] The following describes various embodiments of the present invention, accompanied by drawings. These embodiments are merely illustrative and do not limit the present invention. [Examples]
[0043] An embodiment of the present invention provides a method for transmitting a physical random access channel, which is applied to a terminal device, for example, to terminal device 102 in Figure 1.
[0044] Figure 2 shows a method for transmitting a physical random access channel (PRACH) in Embodiment 1 of the present invention. As shown in Figure 2, the method includes the following: Step 201: The terminal device sends a second quantity of PRACH with a first quantity of valid RO.
[0045] The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0046] In some embodiments, the first quantity of effective RO may be referred to as multiple ROs, and the first quantity of effective RO or multiple effective ROs constitutes one effective RO set (RO set).
[0047] In some embodiments, the first quantity of effective RO is the number of PRACH occasions in a single multiple PRACH transmission, and the set of the first quantity of effective RO may be called an effective RO set, that is, the first quantity of effective RO is one effective RO set. In other words, the first quantity is the quantity of effective RO in one effective RO set.
[0048] In some embodiments, the first quantity of effective RO (or effective RO in an RO set) is associated with the same SSB or with different SSBs.
[0049] In some embodiments, the first quantity of effective RO (or referred to as effective RO in an RO set) is effective RO.
[0050] In some embodiments, RO may be referred to as RACH occasion or PRACH occasion.
[0051] In some embodiments, the first number of active ROs capable of transmitting a second number of PRACHs is configured by the network equipment, i.e., multiple ROs capable of transmitting multiple PRACHs are configured by the network equipment.
[0052] In some embodiments, the RO setting or RO set setting is either a cell-specific setting or a UE-specific setting.
[0053] In some embodiments, the second quantity of PRACH or multiple PRACHs is multiple PRACH.
[0054] For example, the second quantity is the specific number of multiple PRACHs, or the number or number of PRACHs transmitted by the terminal device in multiple PRACH transmission.
[0055] In some embodiments, the second quantity of PRACHs are PRACHs that carry the same preamble, or the second quantity of PRACHs are PRACHs that carry different preambles, or a portion of the second quantity of PRACHs are PRACHs that carry the same preamble and the other portion of the second quantity of PRACHs are PRACHs that carry different preambles.
[0056] In other words, a terminal device can transmit a second quantity of the same PRACH with a first quantity of valid ROs, or it can transmit a second quantity of different PRACHs, where the same PRACHs are PRACHs with the same preamble, and the different PRACHs are PRACHs with different preambles.
[0057] In some embodiments, the first quantity is equal to the second quantity, or the first quantity is greater than or equal to the second quantity.
[0058] In some embodiments, when the first quantity is greater than or equal to the second quantity, for example, the first quantity is greater than the settable second quantity.
[0059] For example, the quantity of PRACH repetition is 2, meaning the second quantity is 2 and the first quantity is 4.
[0060] In some embodiments, when the first quantity is equal to or greater than the second quantity, for example, the first quantity is equal to the maximum value of the settable second quantity.
[0061] For example, the quantity of PRACH repetition set by RRC can be any quantity in {2, 4, 8}, that is, if the second quantity that can be set is {2, 4, 8}, then the first quantity is the maximum value of 8.
[0062] In some embodiments, at least one of the first and second quantities is set by the network device via an RRC message, for example, in the system information SIB1 via RRC.
[0063] In some embodiments, the network device is configured to either set one of the first and second quantities, or to set both the first and second quantities.
[0064] For example, a network device may have one of two quantities set, the first quantity being equal to the second quantity, or a network device may have both a first and second quantity set, with the first quantity being greater than or equal to the second quantity.
[0065] As described above, the effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed.
[0066] In some embodiments, the time-domain multiplexing of the first quantity of effective RO is also referred to as TDM scheme multiplexing or time multiplexed PRACH occasion(s), the frequency-domain multiplexing of the first quantity of effective RO is also referred to as FDM scheme multiplexing or frequency multiplexed PRACH occasion(s), and the time-domain and frequency-domain multiplexing of the first quantity of effective RO is also referred to as TDM and FDM scheme multiplexing or time multiplexed and frequency multiplexed PRACH occasion(s).
[0067] The following provides a detailed explanation of each case where RO (Role-on-Demand) is duplicated.
[0068] First, we will explain the case where the effective RO of the first quantity is time-domain multiplexed.
[0069] For example, if the first quantity is N, then one RO set (one RO of multiple PRACH) consists of N ROs that are multiplexed in the time domain, and one RO set (one RO of multiple PRACH) consists of only one RO in the frequency domain.
[0070] In some embodiments, when the first quantity of effective ROs is time-domain multiplexed, the first quantity of effective ROs is the time-domain multiplexed first quantity to which the same SSB is mapped. In other words, when the first quantity is N, the N ROs are N ROs in the time domain to which the same SSB is mapped. The following will explain this with examples.
[0071] In some embodiments, the SSB-RO mapping method is a conventional method. Alternatively, other mapping methods may be employed for SSB-RO. The embodiments of the present invention are not limited to the SSB-RO mapping method.
[0072] Figure 3 shows the mapping of SSBs and ROs in Embodiment 1 of the present invention. As shown in Figure 3, one rectangle represents one RO, and in the SSB and RO mapping setting set by RRC, the number of SSBs mapped to each RO is 1 / 2, that is, the number of ROs mapped to each SSB is 2, the number of ROs multiplexed in the frequency domain is 4, and there are a total of 4 SSBs in the cell.
[0073] For example, the first quantity (N) is 2, and in one RO set, the ROs are two ROs that are mapped to the same SSB in the time domain (i.e., have the same SSB index). Also, the quantity of RO sets is 8.
[0074] Figure 4 shows a set of ROs that are time-domain multiplexed in Embodiment 1 of the present invention. As shown in Figure 4, one rectangle represents one RO, ROs marked with the same design are ROs in one RO set, and ROs in one RO set are two ROs that are mapped to the same SSB in the time domain.
[0075] In some embodiments, when the effective RO of a first quantity is time-domain multiplexed, the effective RO of the first quantity is the effective RO of adjacent first quantities in the time domain. That is, when the first quantity is N, the RO in one RO set is the N adjacent ROs in the time domain.
[0076] In some embodiments, N adjacent ROs in the time domain refer to N ROs in an RO set that are the closest ROs in terms of time domain resource interval, or ROs whose time domain resource indices are consecutive.
[0077] For example, the first quantity (N) is 4, and in one RO set, the ROs are 4 adjacent ROs in the time domain. Also, the quantity of RO sets is 8.
[0078] Figure 5 is another diagram showing the RO sets that are time-domain multiplexed in Embodiment 1 of the present invention. As shown in Figure 5, one rectangle represents one RO, and ROs marked with the same design are ROs in one RO set, and ROs in one RO set are four ROs adjacent in the time domain.
[0079] Next, we will explain the case where the effective RO of the first quantity is frequency domain multiplexed.
[0080] For example, if the first quantity is N, then one RO set (one RO of multiple PRACH) consists of N ROs that are multiplexed in the frequency domain, and one RO set (one RO of multiple PRACH) consists of only one RO in the time domain.
[0081] In some embodiments, when a first quantity of effective ROs is frequency-domain multiplexed, the first quantity of effective ROs is the first quantity of effective ROs that are frequency-domain multiplexed and to which the same SSB is mapped. In other words, when the first quantity is N, the N ROs are N ROs in the frequency domain to which the same SSB is mapped. An example will be given below to illustrate this.
[0082] In some embodiments, the SSB-RO mapping method is a conventional method. Alternatively, other mapping methods may be employed for SSB-RO. The embodiments of the present invention are not limited to the SSB-RO mapping method.
[0083] Figure 6 is another diagram showing the SSB and RO mapping in Embodiment 1 of the present invention. As shown in Figure 6, one rectangle represents one RO, and in the SSB and RO mapping setting set by RRC, the number of SSBs mapped to each RO is 1 / 4, that is, the number of ROs mapped to each SSB is 4, the number of ROs multiplexed in the frequency domain is 4, and there are a total of 4 SSBs in the cell.
[0084] For example, the first quantity (N) is 2, and in one RO set, the ROs are two ROs mapped to the same SSB in the frequency domain (i.e., the same SSB index). Also, the quantity of RO sets is 8.
[0085] Figure 7 shows a set of ROs that are frequency-domain multiplexed in Embodiment 1 of the present invention. As shown in Figure 7, one rectangle represents one RO, ROs with the same design and markings are ROs in one RO set, and ROs in one RO set are two ROs that are mapped to the same SSB in the frequency domain.
[0086] In some embodiments, when the first quantity of effective ROs is frequency-domain multiplexed, the first quantity of effective ROs is the same as the adjacent first quantity of effective ROs in the frequency domain. That is, when the first quantity is N, the ROs in one RO set are the same as the N adjacent ROs in the frequency domain.
[0087] In some embodiments, N adjacent ROs in the frequency domain refer to N ROs in an RO set that have the closest frequency domain resource interval, or ROs whose frequency domain resource indices are consecutive.
[0088] For example, the first quantity (N) is 4, and in one RO set, the ROs are four adjacent ROs in the frequency domain. Also, the quantity of RO sets is 8.
[0089] Figure 8 is another diagram showing the RO sets that are frequency-domain multiplexed in Embodiment 1 of the present invention. As shown in Figure 8, one rectangle represents one RO, and ROs marked with the same design are ROs in one RO set, and ROs in one RO set are four adjacent ROs in the frequency domain.
[0090] Next, we will explain the case where the effective RO of the first quantity is multiplexed in the time domain and frequency domain.
[0091] In some embodiments, the first effective RO includes a third RO that is time-domain multiplexed and a fourth RO that is frequency-domain multiplexed, and the first RO is equal to the product of the third and fourth RO.
[0092] For example, the first quantity is N, the third quantity is L, and the fourth quantity is H, and N = L × H.
[0093] Then, one RO set (one RO of multiple PRACH) is N ROs that are multiplexed in the time domain and frequency domain, and one RO set (one RO of multiple PRACH) has L ROs in the time domain and H ROs in the frequency domain.
[0094] In some embodiments, when the first quantity of effective RO is time-domain and frequency-domain multiplexed, the first quantity of effective RO includes a third quantity of RO that is time-domain multiplexed and mapped to the same SSB, and a fourth quantity of RO that is frequency-domain multiplexed and mapped to the same SSB. Examples will be provided below.
[0095] In some embodiments, the SSB-RO mapping method is a conventional method. Alternatively, other mapping methods may be employed for SSB-RO. The embodiments of the present invention are not limited to the SSB-RO mapping method.
[0096] Figure 9 is another diagram showing the SSB and RO mapping in Embodiment 1 of the present invention. As shown in Figure 9, one rectangle represents one RO, and in the SSB and RO mapping setting set by RRC, the number of SSBs mapped to each RO is 1 / 4, that is, the number of ROs mapped to each SSB is 4, the number of ROs multiplexed in the frequency domain is 4, and there are a total of 4 SSBs in the cell.
[0097] For example, the first quantity (N) is 4, and one RO set contains two ROs mapped to the same SSB (i.e., the same SSB index) in the time domain and two ROs mapped to the same SSB (i.e., the same SSB index) in the frequency domain. The quantity of RO sets is 8.
[0098] Figure 10 shows a set of ROs that are multiplexed in the time domain and frequency domain in Embodiment 1 of the present invention. As shown in Figure 10, one rectangle represents one RO, and ROs with the same design and markings are ROs in one RO set, and an RO in one RO set includes two ROs that are mapped to the same SSB in the time domain and two ROs that are mapped to the same SSB in the frequency domain.
[0099] In some embodiments, when the first quantity of effective ROs is multiplexed in the time domain and frequency domain, the first quantity of effective ROs includes a third quantity of ROs adjacent in the time domain and a fourth quantity of ROs adjacent in the frequency domain. That is, when the first quantity is N, the ROs in one RO set include L ROs adjacent in the time domain and H ROs adjacent in the frequency domain.
[0100] In some embodiments, L adjacent ROs in the time domain refer to L ROs in an RO set that are the closest ROs in terms of time domain resource interval, or ROs whose time domain resource indices are consecutive, and H adjacent ROs in the frequency domain refer to H ROs in an RO set that are the closest ROs in terms of frequency domain resource interval, or ROs whose frequency domain resource indices are consecutive.
[0101] For example, the first quantity (N) is 4, and one RO set contains two adjacent ROs in the time domain and two adjacent ROs in the frequency domain. Also, the quantity of RO sets is 8.
[0102] Figure 11 is another diagram showing the RO sets that are multiplexed in the time domain and frequency domain in Embodiment 1 of the present invention. As shown in Figure 11, one rectangle represents one RO, and ROs marked with the same design are ROs in one RO set, and an RO in one RO set includes two adjacent ROs in the time domain and two adjacent ROs in the frequency domain.
[0103] As described above, when the first quantity of effective RO is multiplexed in the time domain and frequency domain, the first quantity of effective RO includes the third quantity of RO which is multiplexed in the time domain and the fourth quantity of RO which is multiplexed in the frequency domain, of which at least one of the third quantity and the fourth quantity is set by the network equipment by an RRC message, for example, set in the system information SIB1 by RRC.
[0104] In some embodiments, when the first quantity of effective RO is multiplexed in the time domain and frequency domain, the RO in the RO set is determined by the following steps, i.e., Determine one RO in the set of ROs for the fifth quantity according to the ascending RO of the frequency domain resource index; Determine one RO in the RO set of the fifth quantity according to the ascending RO of the time-domain resource index in one PARCH slot; Determine one RO in the RO set of the fifth quantity according to the ascending order of the PRACH slot index; and The RO values in each RO set are determined sequentially and cyclically until the allocation of the fifth quantity of RO sets is completed.
[0105] The following is an example to illustrate this point. For instance, the fifth quantity is 3, meaning that three RO sets are set up.
[0106] Figure 12 is another diagram showing RO sets that are time-domain and frequency-domain multiplexed in Embodiment 1 of the present invention. As shown in Figure 12, first, one RO in three RO sets is determined according to the ascending RO of the frequency-domain resource index; then, one RO in an RO set (or one RO in three multiple PRACHs) is determined according to the ascending RO of the time-domain resource index in one PRACH slot; then, one RO in an RO set (or one RO in three multiple PRACHs) is determined according to the ascending RO of the PRACH slot index; and then, the ROs in each RO set are determined sequentially and cyclically until the allocation of three RO sets (three multiple PRACHs) is complete.
[0107] The above provides a detailed explanation of the case where RO (Role-on-Demand) is duplicated.
[0108] In some embodiments, there are multiple RO sets, and the RO sets are identified by an RO set index. This RO set index is an index for a single RO set.
[0109] In some embodiments, the RO set index may be a Multiple PRACH Index.
[0110] In some embodiments, the RO set index is first determined according to the ascending order of the RO frequency domain resource index, and then determined according to the ascending order of the RO time domain resource index; or the RO set index is first determined according to the ascending order of the RO time domain resource index, and then determined according to the ascending order of the RO frequency domain resource index. For example, the RO set index is first determined according to the ascending order of the RO time domain resource index in one period, and then determined according to the ascending order of the RO frequency domain resource index.
[0111] In some embodiments, the period is the period in which all RO sets are mapped, or the period in which all SSBs are mapped to the RO set.
[0112] The following is an explanation with examples.
[0113] <When the RO set index is first determined according to the ascending order of the RO frequency domain resource index, and then determined according to the ascending order of the RO time domain resource index> FIG. 13 is a diagram showing the determination of the RO set index in the order of the frequency domain first and then the time domain in Embodiment 1 of the present invention. As shown in FIG. 13, corresponding to the RO set as shown in FIG. 4, the indexes 0 to 7 of the RO set are determined in the order of the frequency domain first and then the time domain, that is, the RO set includes RO set 0 to RO set 7.
[0114] FIG. 14 is another diagram showing the determination of the RO set index in the order of the frequency domain first and then the time domain in Example 1 of the present invention. As shown in FIG. 14, corresponding to the RO set as shown in FIG. 5, the indices 0 to 7 of the RO set are determined in the order of the frequency domain first and then the time domain. That is, the RO set includes RO set 0 to RO set 7.
[0115] FIG. 15 is another diagram showing the determination of the RO set index in the order of the frequency domain first and then the time domain in Example 1 of the present invention. As shown in FIG. 15, corresponding to the RO set as shown in FIG. 10, the indices 0 to 7 of the RO set are determined in the order of the frequency domain first and then the time domain. That is, the RO set includes RO set 0 to RO set 7.
[0116] <When the RO set index is determined first in ascending order of the RO time domain resource index and then in ascending order of the RO frequency domain resource index> FIG. 16 is a diagram showing the determination of the RO set index in the order of the time domain first and then the frequency domain in Example 1 of the present invention. As shown in FIG. 16, corresponding to the RO set as shown in FIG. 4, the indices 0 to 7 of the RO set are determined in the order of the time domain first and then the frequency domain. That is, the RO set includes RO set 0 to RO set 7.
[0117] FIG. 17 is another diagram showing the determination of the RO set index in the order of the time domain first and then the frequency domain in Example 1 of the present invention. As shown in FIG. 17, corresponding to the RO set as shown in FIG. 5, the indices 0 to 7 of the RO set are determined in the order of the time domain first and then the frequency domain. That is, the RO set includes RO set 0 to RO set 7.
[0118] Figure 18 is another figure showing that in Embodiment 1 of the present invention, the RO set index is determined first in the time domain and then in the frequency domain. As shown in Figure 18, corresponding to the RO set shown in Figure 10, the RO set indices 0 to 7 are determined first in the time domain and then in the frequency domain, i.e., the RO set includes RO set 0 to RO set 7.
[0119] As described above, the RO set index is first determined in ascending order of the RO frequency domain resource index, then determined in ascending order of the RO time domain resource index, or the RO set index is first determined in ascending order of the RO time domain resource index, then determined in ascending order of the RO frequency domain resource index, and in some embodiments, the RO time domain resource index and frequency domain resource index are determined based on the PRACH configuration Index set by the network equipment, or determined in other ways. In other words, the RO is determined in the PRACH configuration Index manner, or determined in other ways. The embodiments of the present invention are not limited to the setting or determination method of the RO time domain resources and frequency domain resources.
[0120] In some embodiments, the quantity of RO sets is the fifth quantity.
[0121] In some embodiments, the maximum value of the RO set, i.e., the fifth quantity, is a directly defined default value (acceptable value).
[0122] In some embodiments, the RO quantity of each RO set among the fifth quantity RO sets is the same; for example, the RO quantity of each RO set among the four RO sets is 2.
[0123] Alternatively, in the fifth quantity of RO, the RO quantities of some RO sets are the same, while the RO quantities of some RO sets are different. For example, among the four RO sets, the RO quantities of RO set 0 and RO set 1 are 2, the RO quantity of RO set 2 is 4, and the RO quantity of RO set 3 is 8.
[0124] Alternatively, the RO quantities in each of the RO sets of the fifth quantity are all different. For example, among the four RO sets, RO set 0 has an RO quantity of 2, RO set 1 has an RO quantity of 3, RO set 2 has an RO quantity of 4, and RO set 3 has an RO quantity of 8.
[0125] In some embodiments, the number of RO sets, i.e., the fifth quantity, is set by the network device via an RRC message, for example, in the system information SIB1 via RRC.
[0126] In some embodiments, when the RO quantity in each RO set is the same, for example, RRC sets the RO set quantity and the RO quantity in each RO set, and the RO quantity in each RO set set is the same.
[0127] In some embodiments, if the RO quantities in each RO set are all different, or if the RO quantities in some RO sets are different, for example, RRC sets the RO quantity in an RO set and the number of RO sets having a certain RO quantity, for example, setting that the RO quantity in an RO set is 2, and that there are 3 RO sets having 2 ROs.
[0128] In some embodiments, when the RO quantities of some RO sets in the RO set differ, the mapping of RO sets with the same RO quantity is performed first, and then the mapping of the RO set index (or multiple PRACH index) is performed in order from low to high RO quantities in the RO sets, or the mapping of RO sets with the same RO quantity is performed first, and then the mapping of the RO set index (or multiple PRACH index) is performed in order from high to low RO quantities in the RO sets.
[0129] The following explanation will use as an example a method in which the RO quantities differ for some RO sets, and the RO set index is mapped in order from the lowest to the highest RO quantity within the RO sets.
[0130] Figure 19 shows the mapping RO set in Example 1 of the present invention.
[0131] As shown in Figure 19, each rectangle represents one RO, and ROs marked with the same design belong to the same RO set. In an RO configuration (or multiple PRACH configuration), there are four RO sets with 2 ROs and four RO sets with 4 ROs. First, the RO set index for sets with 2 ROs is mapped, and then the RO set index for sets with 4 ROs is mapped. The RO set index is mapped first in the frequency domain, and then in the time domain. In addition, the ROs in an RO set are determined in the manner of N adjacent ROs (2 or 4) in the time domain.
[0132] In some embodiments, the maximum value of the RO quantity in the RO set, i.e., the first quantity, is the sixth quantity. For example, the maximum value of the first quantity is expressed as Nmax.
[0133] In some embodiments, the sixth quantity is set by an RRC message, for example, in the system information SIB1 via RRC. Alternatively, the sixth quantity is a directly defined default value.
[0134] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment.
[0135] Furthermore, embodiments of the present invention provide a method for determining the RO of multiple PRACH transmissions, which allows network devices and terminal devices to have a consistent definition of the PRACH occasion of multiple PRACHs. This enables network devices to jointly detect the RO of multiple PRACHs, thereby improving the detection efficiency of network devices for multiple PRACHs. [Examples]
[0136] Embodiment 2 of the present invention further provides an RO setting method, which is applied to the network equipment side. This method corresponds to the method of Embodiment 1, and redundant explanations of the same content are omitted here. For example, this method is applied to the network equipment 101 in Figure 1.
[0137] Figure 20 shows the RO setting method in Embodiment 2 of the present invention. As shown in Figure 20, the method includes the following, namely, Step 2001: Set the first quantity of valid RO so that the network device sends the second quantity of PRACH to the terminal device.
[0138] The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0139] The second quantity of PRACH is a PRACH that carries the same preamble, or The second quantity of PRACH is a PRACH that carries a different preamble, or A portion of the second quantity of PRACH is PRACH that carries the same preamble, and the other portion of the second quantity of PRACH is PRACH that carries different preambles.
[0140] In some embodiments, the first quantity of effective RO is one RO set.
[0141] In some embodiments, when the first quantity of effective RO is multiplexed in the time domain and frequency domain, the first quantity of effective RO includes a third quantity of RO that is multiplexed in the time domain and a fourth quantity of RO that is multiplexed in the frequency domain, and the first quantity is equal to the product of the third quantity and the fourth quantity.
[0142] In some embodiments, the quantity of the RO set is the fifth quantity, and the RO quantity of each RO set in the fifth quantity of RO sets is the same, or the RO quantities of each RO set in the fifth quantity of RO sets are different.
[0143] In some embodiments, the maximum value of the first quantity is the sixth quantity.
[0144] In some embodiments, the network device sets at least one of the first, second, third, fourth, fifth, and sixth quantities by an RRC message. For example, the network device sets it in system information SIB1 by RRC.
[0145] In some embodiments, the network device configures the RO using an existing PRACH configuration table, or by other means.
[0146] In some embodiments, network devices configure multiple PRACH using one or more PRACH configuration lists.
[0147] Figure 21 shows a multiple PRACH configuration List in Embodiment 2 of the present invention. As shown in Figure 21, one multiple PRACH configuration List has multiple multiple PRACH configurations set up, and one multiple PRACH configuration has multiple RO sets set up, and the RO set quantity and the RO quantity in the RO set (first quantity) and / or the specific quantity of multiple PRACH (second quantity) are indicated.
[0148] In some embodiments, the maximum number of multiple PRACH configurations set in a single multiple PRACH configuration List is a directly defined default.
[0149] In the configuration method shown in Figure 21, specify the RO set quantity in the multiple PRACH configuration.
[0150] In some embodiments, the maximum RO set quantity is a directly defined default value, or the maximum RO set quantity is set by RRC, for example, by RRC in system information SIB1.
[0151] In some embodiments, the multiple PRACH configuration may also configure other parameters, such as SSB mapping and PRACH configuration index.
[0152] Figure 22 is another figure showing a multiple PRACH configuration List in Embodiment 2 of the present invention. As shown in Figure 22, one multiple PRACH configuration List may contain multiple multiple PRACH configurations, and one multiple PRACH configuration may contain one RO set setting, and one multiple PRACH configuration may contain an RO quantity (first quantity) and / or a specific quantity of multiple PRACH (second quantity) in the RO set.
[0153] In the configuration method shown in Figure 22, the multiple PRACH configuration corresponds to the RO set, and the quantity of the multiple PRACH configuration is the RO set quantity.
[0154] In some embodiments, the maximum RO set quantity is a directly defined default value, or the maximum RO set quantity is set by RRC, for example, set in system information SIB1 by RRC.
[0155] In some embodiments, the multiple PRACH configuration may also configure other parameters, such as SSB mapping and PRACH configuration index.
[0156] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment. [Examples]
[0157] Embodiment 3 of the present invention further provides a method for transmitting a physical random access channel, which is applied to both the network equipment and the terminal equipment. This method corresponds to the methods of Embodiments 1 and 2, and redundant explanations of the same content are omitted here. For example, this method is applied to the network equipment 101 and terminal equipment 102 in Figures 1 and 2.
[0158] Figure 23 shows a transmission method for a physical random access channel in Embodiment 3 of the present invention. As shown in Figure 23, the method includes the following, namely, Step 2301: Set the first number of valid ROs so that the network device sends a second number of PRACHs to the terminal device; and Step 2302: The terminal device transmits a second quantity of PRACH with a first quantity of valid RO.
[0159] The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0160] For specific details on how to implement each of the steps described above, please refer to the descriptions in Example 1 and Example 2, and a detailed explanation will be omitted here.
[0161] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment. [Examples]
[0162] An embodiment of the present invention provides a method for transmitting a physical random access channel, which is applied to a terminal device. For example, it is applied to terminal device 102 in Figure 1.
[0163] Figure 24 shows a transmission method for a physical random access channel in Embodiment 4 of the present invention. As shown in Figure 24, the method includes the following: Step 2401: The terminal device sends a second quantity of PRACH with a first quantity of valid RO.
[0164] The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and which has the RO of the second quantity in the frequency domain, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO is the second quantity.
[0165] In some embodiments, the mapping method for SSB and RO reuses an existing mapping method or employs a different mapping method.
[0166] In some embodiments, the second quantity of PRACH is a PRACH that carries the same preamble, or the second quantity of PRACH is a PRACH that carries different preambles, or part of the second quantity of PRACH is a PRACH that carries the same preamble and the other part of the second quantity of PRACH is a PRACH that carries different preambles.
[0167] In some embodiments, the information for the start RO is set by an RRC message. For example, it is set in the system information SIB1 by the RRC.
[0168] In some embodiments, the information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO at the PRACH time domain position.
[0169] In some embodiments, the seventh quantity is set by an RRC message. For example, it is set in system information SIB1 by an RRC.
[0170] In some of the embodiments, details related to Embodiment 1 can be found in the description of Embodiment 1, and a detailed explanation is omitted here.
[0171] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment.
[0172] Furthermore, embodiments of the present invention provide a method for determining the RO of multiple PRACH transmissions, which allows network devices and terminal devices to have a consistent definition of the PRACH occasion of multiple PRACHs. This enables network devices to jointly detect the RO of multiple PRACHs, thereby improving the detection efficiency of network devices for multiple PRACHs. [Examples]
[0173] Embodiment 5 of the present invention further provides an RO setting method, which is applied to the network equipment side. This method corresponds to the method of Embodiment 4, and redundant explanations of the same content are omitted here. For example, this method is applied to the network equipment 101 in Figure 1.
[0174] Figure 25 shows the RO setting method in Embodiment 5 of the present invention. As shown in Figure 25, the method includes the following, namely, Step 2501: Set the first quantity of valid RO so that the network device sends the second quantity of PRACH to the terminal device.
[0175] The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and which has the RO of the second quantity in the frequency domain, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO is the second quantity.
[0176] In some embodiments, the mapping method for SSB and RO reuses an existing mapping method or employs a different mapping method.
[0177] In some embodiments, the second quantity of PRACH is a PRACH that carries the same preamble, or the second quantity of PRACH is a PRACH that carries different preambles, or part of the second quantity of PRACH is a PRACH that carries the same preamble and the other part of the second quantity of PRACH is a PRACH that carries different preambles.
[0178] In some embodiments, the network device sets the information for the start RO by an RRC message. For example, the network device sets it in the system information SIB1 by RRC.
[0179] In some embodiments, the information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO in the PRACH time domain.
[0180] In some embodiments, the network device sets the seventh quantity by an RRC message. For example, the network device sets it in system information SIB1 by RRC.
[0181] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment. [Examples]
[0182] Embodiment 6 of the present invention provides a transmission device for a physical random access channel, which is installed in a terminal device. Since the principle by which this device solves the problem is the same as that of Embodiment 1, specific implementations can be found by referring to the implementation of the method described in Embodiment 1, and redundant explanations of the same or related content are omitted here.
[0183] Figure 26 shows a transmission device for a physical random access channel in Embodiment 6 of the present invention. As shown in Figure 26, the physical random access channel transmission device 2600 includes the following, namely: First transmitting unit 2601: Used to transmit a second quantity of PRACH with a first quantity of effective RO.
[0184] The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0185] In some embodiments, the second quantity of PRACH is a PRACH that carries the same preamble, or the second quantity of PRACH is a PRACH that carries different preambles, or part of the second quantity of PRACH is a PRACH that carries the same preamble and the other part of the second quantity of PRACH is a PRACH that carries different preambles.
[0186] In some embodiments, the first quantity of effective RO is one effective RO set.
[0187] In some embodiments, when the first quantity of effective RO is time-domain multiplexed, the first quantity of effective RO is the time-domain multiplexed first quantity of effective RO to which the same SSB is mapped.
[0188] In some embodiments, the mapping method for the SSB and RO reuses an existing mapping method or employs a different mapping method.
[0189] In some embodiments, when the first quantity of effective RO is time-domain multiplexed, the first quantity of effective RO is the same as the first quantity of effective RO adjacent in the time domain.
[0190] In some embodiments, when the first quantity of effective RO is frequency-domain multiplexed, the first quantity of effective RO is the first quantity of effective RO that is frequency-domain multiplexed and to which the same SSB is mapped.
[0191] In some embodiments, the mapping method for the SSB and RO reuses an existing mapping method or employs a different mapping method.
[0192] In some embodiments, when the first quantity of effective RO is frequency-domain multiplexed, the first quantity of effective RO is the same as the adjacent first quantity of effective RO in the frequency domain.
[0193] In some embodiments, when the effective RO of the first quantity is time-domain and frequency-domain multiplexed, the effective RO of the first quantity includes a third quantity of RO that is time-domain multiplexed and to which the same SSB is mapped, and a fourth quantity of RO that is frequency-domain multiplexed and to which the same SSB is mapped, such that the first quantity is equal to the product of the third quantity and the fourth quantity.
[0194] In some embodiments, when the effective RO of the first quantity is multiplexed in the time domain and the frequency domain, the effective RO of the first quantity includes the RO of a third quantity adjacent in the time domain and the RO of a fourth quantity adjacent in the frequency domain, and the first quantity is equal to the product of the third quantity and the fourth quantity.
[0195] In some embodiments, the first quantity is equal to the second quantity, or the first quantity is greater than or equal to the second quantity.
[0196] In some embodiments, at least one of the first, second, third, and fourth quantities is set by an RRC message. For example, it is set in system information SIB1 by RRC.
[0197] In some embodiments, when the first quantity of effective RO is multiplexed in the time domain and frequency domain, the RO in the RO set is determined by the following steps, i.e., Determine one RO in the set of ROs for the fifth quantity according to the ascending RO of the frequency domain resource index; Determine one RO in the RO set of the fifth quantity according to the ascending RO of the time-domain resource index in one PARCH slot; Determine one RO in the RO set of the fifth quantity according to the ascending RO of the PRACH slot index; and The RO values in each RO set are determined sequentially and cyclically until the allocation of the fifth quantity of RO sets is completed.
[0198] In some embodiments, the RO set index is an index for a single RO set.
[0199] In some embodiments, the RO set index is first determined in ascending order of the frequency domain resource index of RO, then determined in ascending order of the time domain resource index of RO, or The RO set index is first determined in ascending order of the RO time-domain resource index, and then determined in ascending order of the RO frequency-domain resource index. The time-domain resource index and frequency-domain resource index of the RO are determined based on the PRACH configuration index of the network equipment settings, or by other means.
[0200] In some embodiments, the quantity of the RO set is the fifth quantity, and the RO quantity of each RO set in the fifth quantity of RO sets is the same, or the RO quantities of each RO set in the fifth quantity of RO sets are different.
[0201] In some examples, when the RO quantities of some RO sets in the RO set are different, First, map RO sets with the same RO quantity, and then map the RO set index in order from low to high RO quantity within the RO set, or First, RO sets with the same RO quantity are mapped, and then the RO set indexes are mapped in order from highest to lowest RO quantity within the RO set.
[0202] In some embodiments, the maximum value of the first quantity is the sixth quantity.
[0203] In some embodiments, the fifth quantity is set by an RRC message. For example, it is set in system information SIB1 by an RRC.
[0204] In some embodiments, the sixth quantity is set by an RRC message, for example, in the system information SIB1 via RRC. Alternatively, the sixth quantity is a default value.
[0205] For details regarding the functions and specific contents of each of the above-mentioned units, please refer to the relevant steps in Example 1; a detailed explanation is omitted here.
[0206] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment.
[0207] Furthermore, embodiments of the present invention provide a method for determining the RO of multiple PRACH transmissions, which allows network devices and terminal devices to have a consistent definition of the PRACH occasion of multiple PRACHs. This enables network devices to jointly detect the RO of multiple PRACHs, thereby improving the detection efficiency of network devices for multiple PRACHs. [Examples]
[0208] Embodiment 7 of the present invention provides an RO setting device, which is installed on network equipment. Since the principle by which this device solves the problem is the same as the method of Embodiment 2, for specific implementations, refer to the implementation of the method of Embodiment 2, and redundant explanations of the same or related content are omitted here.
[0209] Figure 27 shows the RO setting device in Embodiment 7 of the present invention. As shown in Figure 27, the RO setting device 2700 includes the following, namely, First setting unit 2701: Used to set the valid RO of the first quantity to the terminal device, which transmits the second quantity PRACH.
[0210] The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0211] In some embodiments, the second quantity of PRACH is a PRACH that carries the same preamble, or the second quantity of PRACH is a PRACH that carries different preambles, or part of the second quantity of PRACH is a PRACH that carries the same preamble and the other part of the second quantity of PRACH is a PRACH that carries different preambles.
[0212] In some embodiments, the first quantity of effective RO is one effective RO set.
[0213] In some embodiments, when the first quantity of effective RO is multiplexed in the time domain and frequency domain, the first quantity of effective RO includes a third quantity of RO that is multiplexed in the time domain and a fourth quantity of RO that is multiplexed in the frequency domain, and the first quantity is equal to the product of the third quantity and the fourth quantity.
[0214] In some embodiments, the quantity of the RO set is the fifth quantity, and the RO quantity of each RO set in the fifth quantity of RO sets is the same, or the RO quantities of each RO set in the fifth quantity of RO sets are different.
[0215] In some embodiments, the maximum value of the first quantity is the sixth quantity.
[0216] In some embodiments, the first setting unit 2701 sets at least one of the first, second, third, fourth, fifth, and sixth quantities by RRC messages. For example, the network device sets it in system information SIB1 by RRC.
[0217] In some embodiments, the first setting unit 2701 sets the RO using an existing PRACH configuration table, or sets the RO in another manner.
[0218] For details on the functions and specific contents of each of the above-mentioned units, please refer to the description of the relevant steps in Example 2; a detailed explanation is omitted here.
[0219] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment. [Examples]
[0220] Embodiment 8 of the present invention provides a transmission device for a physical random access channel, which is installed in a terminal device. Since the principle by which this device solves the problem is the same as that of Embodiment 4, for specific implementations, refer to the implementation of the method described in Embodiment 4, and redundant explanations of the same or related content are omitted here.
[0221] Figure 28 shows a physical random access channel transmission device in Embodiment 8 of the present invention. As shown in Figure 28, the physical random access channel transmission device 2800 includes the following, namely, Second transmitting unit 2801: Used to transmit a second quantity of PRACH with a first quantity of effective RO.
[0222] The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and which has the RO of the second quantity in the frequency domain, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO is the second quantity.
[0223] In some embodiments, the mapping method for SSB and RO reuses an existing mapping method or employs a different mapping method.
[0224] In some embodiments, the second quantity of PRACH is a PRACH that carries the same preamble, or the second quantity of PRACH is a PRACH that carries different preambles, or part of the second quantity of PRACH is a PRACH that carries the same preamble and the other part of the second quantity of PRACH is a PRACH that carries different preambles.
[0225] In some embodiments, the information for the start RO is set by an RRC message. For example, it is set in the system information SIB1 by the RRC.
[0226] In some embodiments, the information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO on the PRACH time domain position.
[0227] In some embodiments, the seventh quantity is set by an RRC message. For example, it is set in system information SIB1 by an RRC.
[0228] For details on the functions and specific contents of each of the above-mentioned units, please refer to the relevant steps described in Example 4; a detailed explanation is omitted here.
[0229] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment.
[0230] Furthermore, embodiments of the present invention provide a method for determining the RO of multiple PRACH transmissions, which allows network devices and terminal devices to have a consistent definition of the PRACH occasion of multiple PRACHs. This enables network devices to jointly detect the RO of multiple PRACHs, thereby improving the detection efficiency of network devices for multiple PRACHs. [Examples]
[0231] Embodiment 9 of the present invention provides an RO setting device, which is installed on network equipment. Since the principle by which this device solves the problem is the same as the method of Embodiment 5, for specific implementations, refer to the implementation of the method of Embodiment 5, and redundant explanations of the same or related content are omitted here.
[0232] Figure 29 shows the RO setting device in Embodiment 9 of the present invention. As shown in Figure 29, the RO setting device 2900 includes the following, namely, Second setting unit 2901: Used to set the valid RO of the first quantity to the terminal device, which transmits the second quantity of PRACH.
[0233] The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and which has the RO of the second quantity in the frequency domain, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO is the second quantity.
[0234] In some embodiments, the mapping method for SSB and RO reuses an existing mapping method or employs a different mapping method.
[0235] In some embodiments, the second quantity of PRACH is a PRACH that carries the same preamble, or the second quantity of PRACH is a PRACH that carries different preambles, or part of the second quantity of PRACH is a PRACH that carries the same preamble and the other part of the second quantity of PRACH is a PRACH that carries different preambles.
[0236] In some embodiments, the second setting unit 2901 sets the information for the start RO by an RRC message. For example, it sets it in the system information SIB1 by RRC.
[0237] In some embodiments, the information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO in the PRACH time domain.
[0238] In some embodiments, the second setting unit 2901 sets the seventh quantity by an RRC message. For example, it is set in the system information SIB1 by RRC.
[0239] For details on the functions and specific contents of each of the above-mentioned units, please refer to the relevant steps in Example 5; a detailed explanation is omitted here.
[0240] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment. [Examples]
[0241] An embodiment of the present invention provides a terminal device, which includes a physical random access channel transmission device as described in Example 6 or Example 8.
[0242] Figure 30 is a block diagram showing the system configuration of a terminal device in Embodiment 10 of the present invention. As shown in Figure 30, the terminal device 3000 may include a processor 3010 and a memory unit 3020, with the memory unit 3020 connected to the processor 3010. Note that this figure is merely illustrative, and other types of configurations may be used to supplement or substitute this configuration to realize telecommunications functions or other functions.
[0243] In one implementation, the functions of the physical random access channel transmission device can be integrated into the processor 3010.
[0244] Corresponding to Example 6, the processor 3010 is configured as follows: a terminal device transmits a second quantity of PRACH with a first quantity of effective RO, the first quantity of effective RO being time-domain multiplexed, or the first quantity of effective RO being frequency-domain multiplexed, or the first quantity of effective RO being time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0245] Corresponding to Example 8, the processor 3010 is configured as follows: a terminal device transmits a second quantity of PRACH with a first quantity of valid ROs, and the first quantity of valid ROs includes a seventh quantity of ROs of PRACH having a second quantity of ROs in the time domain, or a seventh quantity of ROs adjacent in the time domain from the start RO, or the first quantity of valid ROs includes a seventh quantity of ROs of PRACH having a second quantity of ROs in the frequency domain, or a seventh quantity of ROs adjacent in the frequency domain from the start RO, or the first quantity of valid ROs includes a seventh quantity of ROs of PRACH having a second quantity of ROs, with the same SSB mapped from the start RO.
[0246] In another implementation, the physical random access channel transmission device may be configured separately from the processor 3010. For example, the physical random access channel transmission device may be configured as a chip connected to the processor 3010, and the functions of the physical random access channel transmission device may be realized by the control of the processor 3010.
[0247] As shown in Figure 30, the terminal device 3000 may further include a communication module 3030, an input unit 3040, a display unit 3050, a power supply 3060, and the like. However, the terminal device 3000 does not need to include all the components shown in Figure 30. Furthermore, the terminal device 3000 may also include components not shown in Figure 30; for these, refer to related technologies.
[0248] As shown in Figure 30, the processor 3010 may be referred to as a controller or operation control, and may include a microprocessor or other processing unit and / or logic unit, and the processor 3010 can receive inputs and control the operation of each component of the terminal device 3000.
[0249] Among these, the memory unit 3020 may be one or more of, for example, a buffer, fresh memory, HDD, movable medium, volatile memory, non-volatile memory, or other suitable device, and can store various types of data, as well as programs for information processing. The processor 3010 can perform information storage and processing by executing the program stored in the memory unit 3020. The functions of the other components are the same as in the conventional, and a detailed explanation of them is omitted here. Each component of the terminal device 3000 may be realized by dedicated hardware, firmware, software, or a combination thereof, but all of them are within the scope of the present invention.
[0250] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment.
[0251] Furthermore, embodiments of the present invention provide a method for determining the RO of multiple PRACH transmissions, which allows network devices and terminal devices to have a consistent definition of the PRACH occasion of multiple PRACHs. This enables network devices to jointly detect the RO of multiple PRACHs, thereby improving the detection efficiency of network devices for multiple PRACHs. [Examples]
[0252] In an embodiment of the present invention, a network device is provided, and the network device includes the RO setting device described in Embodiment 7 or Embodiment 9.
[0253] FIG. 31 is a block diagram showing the system configuration of a network device in Embodiment 11 of the present invention. As shown in FIG. 31, the network device 3100 may include a processor 3110 and a memory 3120, and the memory 3120 is connected to the processor 3110. Among them, the memory 3120 can store various data, can also store a program 3130 for information processing, and can execute the program 3130 under the control of the processor 3110.
[0254] In one implementation, the function of the RO setting device can be integrated into the processor 3110.
[0255] Corresponding to Embodiment 7, the processor 3110 is configured as follows: that is, the network device sets a first quantity of valid ROs for transmitting a second quantity of PRACHs to the terminal device, and the first quantity of valid ROs are time-domain multiplexed, or the first quantity of valid ROs are frequency-domain multiplexed, or the first quantity of valid ROs are time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers greater than or equal to 2.
[0256] Corresponding to Embodiment 9, the processor 3110 is configured as follows: that is, the network device sets a first quantity of valid ROs for transmitting a second quantity of PRACHs to the terminal device, and the first quantity of valid ROs include the seventh quantity of ROs in the time domain where the same SSB is mapped from the starting RO and there are a second quantity of PRACHs, or the seventh quantity of ROs adjacent in the time domain from the starting RO, or the first quantity of valid ROs include the seventh quantity of ROs in the frequency domain where the same SSB is mapped from the starting RO and there are a second quantity of PRACHs, or the seventh quantity of ROs adjacent in the frequency domain from the starting RO, or the first quantity of valid ROs include the seventh quantity of ROs where the same SSB is mapped from the starting RO and there are a second quantity of PRACHs.
[0257] In another implementation, the RO setting device may be configured separately from the processor 3110. For example, the RO setting device may be configured as a chip connected to the processor 3110, and the function of a physical random access channel transmission device may be realized by the control of the processor 3110.
[0258] Furthermore, as shown in Figure 31, the network device 3100 may also include a transceiver 3140, an antenna 3150, etc., and since the functions of the above-mentioned components are similar to those of the prior art, a detailed explanation is omitted here. Note that the network device 3100 does not need to include all the components shown in Figure 31. Also, the network device 3100 may include components not shown in Figure 31, for which prior art can be consulted.
[0259] As can be seen from the above embodiment, by providing an RO setting mechanism for multiple PRACH transmission, terminal equipment (UE) in areas with poor coverage can be made to perform multiple PRACH transmissions. This enhances the energy transmitted by the terminal equipment through the access channel and improves the likelihood and accuracy of network equipment receiving PRACH transmissions from the terminal equipment, thereby improving the uplink coverage of network equipment. [Examples]
[0260] An embodiment of the present invention provides a communication system which includes the terminal equipment described in Example 10 and / or the network equipment described in Example 11.
[0261] For example, the configuration of the communication system can be seen in Figure 1.
[0262] As shown in Figure 1, the communication system 100 includes network equipment 101 and terminal equipment 102. Network equipment 101 is the same as the network equipment described in Example 11, and terminal equipment 102 is the same as the terminal equipment described in Example 10. Therefore, redundant information is omitted here.
[0263] 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 also relates to a computer-readable program, such as the following, which, 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 methods or steps. 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 also relates to a storage medium storing the above-described program, such as a hard disk, magnetic disk, optical hard disk, DVD, or flash memory.
[0264] 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 integrated circuit (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 by communication with a DSP or any other combination of any other configuration.
[0265] 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.
[0266] Furthermore, the following additional information is disclosed regarding the above-mentioned embodiments.
[0267] <Appendix 1> (Appendix 1) A transmission device for a physical random access channel (PRACH), wherein the device is installed in a terminal device, and the device includes a first transmission unit, which is used to transmit a second quantity of PRACHs with a first quantity of valid ROs, wherein the first quantity of valid ROs is multiplexed in the time domain, or the first quantity of valid ROs is multiplexed in the frequency domain, or the first quantity of valid ROs is multiplexed in both the time domain and the frequency domain, and the first quantity and the second quantity are positive integers greater than or equal to 2.
[0268] (Appendix 2) The device according to Appendix 1, wherein the second quantity of PRACHs are PRACHs carrying the same preamble, or the second quantity of PRACHs are PRACHs carrying different preambles, or a part of the second quantity of PRACHs are PRACHs carrying the same preamble, and another part of the second quantity of PRACHs are PRACHs carrying different preambles.
[0269] (Appendix 3) The device according to Appendix 1 or 2, wherein the first quantity of valid ROs is one RO set.
[0270] (Appendix 4) The device according to any one of Appendices 1 - 3, when the first quantity of valid ROs is multiplexed in the time domain, the first quantity of valid ROs are those that are multiplexed in the time domain with the same SSB mapped thereto.
[0271] (Appendix 5) The device according to Appendix 4, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0272] (Note 6) The apparatus described in any one of the appendices 1-3, When the effective RO of the first quantity is time-domain multiplexed, The effective RO of the aforementioned first quantity is the effective RO of the adjacent first quantity in the time domain.
[0273] (Note 8) The apparatus described in any one of the appendices 1-3, When the effective RO of the first quantity is frequency domain multiplexed, The effective RO of the first quantity is the effective RO of the first quantity that is frequency-domain multiplexed and to which the same SSB is mapped.
[0274] (Note 9) The apparatus described in Appendix 8, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0275] (Note 10) The apparatus described in any one of the appendices 1-3, When the effective RO of the first quantity is frequency domain multiplexed, The effective RO of the aforementioned first quantity is the effective RO of an adjacent first quantity in the frequency domain.
[0276] (Note 11) The apparatus described in any one of the appendices 1-3, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, The effective RO of the first quantity includes a time-domain multiplexed third quantity of RO to which the same SSB is mapped, and a frequency-domain multiplexed fourth quantity of RO to which the same SSB is mapped, wherein the first quantity is equal to the product of the third quantity and the fourth quantity.
[0277] (Note 12) The apparatus described in any one of the appendices 1-3, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, The effective RO of the first quantity includes the RO of a third quantity adjacent in the time domain and the RO of a fourth quantity adjacent in the frequency domain, wherein the first quantity is equal to the product of the third quantity and the fourth quantity.
[0278] (Note 13) The apparatus described in any one of the appendices 1-12, The first quantity is equal to the second quantity, or The first quantity is equal to or greater than the second quantity.
[0279] (Note 14) The apparatus described in any one of the appendices 1-13, At least one of the first quantity, the second quantity, the third quantity, and the fourth quantity is set by an RRC message.
[0280] (Note 15) The apparatus described in any one of the appendices 1-3, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, the RO in the RO set is determined by the following steps, i.e., Determine one RO in the set of ROs for the fifth quantity according to the ascending RO of the frequency domain resource index; Determine one RO in the set of five ROs according to the ascending RO of the time-domain resource index in one PARCH slot; Determine one RO in the RO set of the five quantities according to the ascending order of the PRACH slot index; and The RO values in each RO set are determined sequentially and cyclically until the allocation of the fifth quantity of RO sets is completed.
[0281] (Note 16) The apparatus described in any one of the items in Appendix 3-15, The aforementioned RO set index is an index for a single RO set.
[0282] (Note 17) The apparatus described in Appendix 16, The RO set index is first determined in ascending order of the frequency domain resource index of RO, then determined in ascending order of the time domain resource index of RO, or The aforementioned RO set index is first determined in ascending order of the RO time-domain resource index, and then determined in ascending order of the RO frequency-domain resource index. The aforementioned RO's time-domain resource index and frequency-domain resource index are determined based on the PRACH configuration index of the network device settings, or by other means.
[0283] (Note 18) The apparatus described in any one of the items in Appendix 3-17, The quantity of the aforementioned RO set is the fifth quantity, The RO quantities in each of the RO sets of the fifth quantity are the same, or the RO quantities in each of the RO sets of the fifth quantity are different.
[0284] (Note 19) The apparatus described in Appendix 18, If the RO quantities of some RO sets in the RO set are different, First, map RO sets with the same RO quantity, and then map the RO set index in order from low to high RO quantity within the RO set, or This method first maps RO sets with the same RO quantity, and then maps the RO set indexes in descending order of RO quantity within the RO set.
[0285] (Note 20) The apparatus described in any one of the appendices 1-19, The maximum value of the aforementioned first quantity is the sixth quantity.
[0286] (Note 21) The apparatus described in any one of the appendices 18-20, The fifth quantity is set by an RRC message, and / or The sixth quantity is set by an RRC message or is a default value.
[0287] (Note 22) RO setting device, wherein the device is installed on network equipment, It includes a first setting unit, which is used to set the first quantity of valid ROs in the terminal equipment and transmit a second quantity of PRACH. The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0288] (Note 23) The apparatus described in Appendix 22, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0289] (Note 24) The apparatus described in Appendix 22 or 23, The effective RO of the aforementioned first quantity is one RO set.
[0290] (Note 25) The apparatus described in Appendix 22, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, The effective RO of the first quantity includes a third quantity of RO that is time-domain multiplexed and a fourth quantity of RO that is frequency-domain multiplexed. The first quantity is equal to the product of the third quantity and the fourth quantity.
[0291] (Note 26) The apparatus described in Appendix 24, The quantity of the aforementioned RO set is the fifth quantity, The RO quantities in each of the RO sets of the fifth quantity are the same, or the RO quantities in each of the RO sets of the fifth quantity are different.
[0292] (Note 27) The apparatus described in any one of the appendices 22-26, The maximum value of the aforementioned first quantity is the sixth quantity.
[0293] (Note 28) The apparatus described in any one of the appendices 22-27, The first setting unit sets at least one of the first quantity, the second quantity, the third quantity, the fourth quantity, the fifth quantity, and the sixth quantity by RRC message.
[0294] (Note 29) The apparatus described in any one of the appendices 22-28, The aforementioned first configuration unit configures RO using an existing PRACH configuration table, or by other means.
[0295] (Note 30) A physical random access channel (PRACH) transmission device, wherein the device is installed in terminal equipment, and the device is It includes a second transmission unit, which is used to transmit a second quantity of PRACH with a first quantity of effective RO, The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the frequency domain is the second quantity, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity is the seventh quantity, which includes the RO of PRACH, where the RO of the second quantity is the RO of which the same SSB is mapped from the starting RO.
[0296] (Note 31) The method described in Appendix 30, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0297] (Note 32) The apparatus described in Appendix 30 or 31, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0298] (Note 33) The apparatus described in any one of the appendices 30-32, The information for the aforementioned start RO is set by an RRC message.
[0299] (Note 34) The apparatus described in Appendix 33, The information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO at the PRACH time domain position.
[0300] (Note 35) The apparatus described in Appendix 30, The seventh quantity is set by the RRC message.
[0301] (Note 36) RO setting device, wherein the device is installed on network equipment, It includes a second setting unit, which is used to set the first quantity of valid ROs to terminal equipment and transmit a second quantity of PRACH. The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the frequency domain is the second quantity, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity is the seventh quantity, which includes the RO of PRACH, where the RO of the second quantity is the RO of which the same SSB is mapped from the starting RO.
[0302] (Note 37) The method described in Appendix 36, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0303] (Note 38) The apparatus described in Appendix 36 or 37, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0304] (Note 39) The apparatus described in any one of the appendices 36-38, The aforementioned second setting unit sets the information for the start RO via an RRC message.
[0305] (Note 40) The apparatus described in Appendix 39, The information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO in the PRACH time domain.
[0306] (Note 41) The apparatus described in Appendix 36, The second setting unit sets the seventh quantity using an RRC message.
[0307] (Note 42) Terminal device, The aforementioned terminal equipment includes any device described in any one of the appendices 1-21 and 31-35.
[0308] (Note 43) Network equipment, The aforementioned network equipment includes any device described in any one of the appendices 22-30 and 36-41.
[0309] (Note 44) It is a communication system, The aforementioned communication system includes terminal equipment as described in Appendix 42 and / or network equipment as described in Appendix 43.
[0310] <Note 2> (Note 1) A method for transmitting a physical random access channel (PRACH), wherein the method is: The terminal device transmits a second quantity of PRACH with a first quantity of valid RO, The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0311] (Note 2) The method described in Appendix 1, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0312] (Note 3) The method described in Appendix 1 or 2, The effective RO of the aforementioned first quantity is one RO set.
[0313] (Note 4) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is time-domain multiplexed, The effective RO of the first quantity is the effective RO of the first quantity that is time-domain multiplexed and to which the same SSB is mapped.
[0314] (Note 5) The method described in Appendix 4, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0315] (Note 6) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is time-domain multiplexed, The effective RO of the aforementioned first quantity is the effective RO of the adjacent first quantity in the time domain.
[0316] (Note 8) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is frequency domain multiplexed, The effective RO of the first quantity is the effective RO of the first quantity that is frequency-domain multiplexed and to which the same SSB is mapped.
[0317] (Note 9) The method described in Appendix 8, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0318] (Note 10) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is frequency domain multiplexed, The effective RO of the aforementioned first quantity is the effective RO of an adjacent first quantity in the frequency domain.
[0319] (Note 11) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, The effective RO of the first quantity includes a time-domain multiplexed third quantity of RO to which the same SSB is mapped, and a frequency-domain multiplexed fourth quantity of RO to which the same SSB is mapped, wherein the first quantity is equal to the product of the third quantity and the fourth quantity.
[0320] (Note 12) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, The effective RO of the first quantity includes the RO of a third quantity adjacent in the time domain and the RO of a fourth quantity adjacent in the frequency domain, wherein the first quantity is equal to the product of the third quantity and the fourth quantity.
[0321] (Note 13) A method described in any one of the appendices 1-12, The first quantity is equal to the second quantity, or The first quantity is equal to or greater than the second quantity.
[0322] (Note 14) A method described in any one of the appendices 1-13, At least one of the first quantity, the second quantity, the third quantity, and the fourth quantity is set by an RRC message.
[0323] (Note 15) A method described in any one of the appendices 1-3, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, the RO in the RO set is determined by the following steps, i.e., Determine one RO in the set of ROs for the fifth quantity according to the ascending RO of the frequency domain resource index; Determine one RO in the set of five ROs according to the ascending RO of the time-domain resource index in one PARCH slot; Determine one RO in the RO set of the five quantities according to the ascending order of the PRACH slot index; and The RO values in each RO set are determined sequentially and cyclically until the allocation of the fifth quantity of RO sets is completed.
[0324] (Note 16) The method described in any one of the items in Appendix 3-15, The aforementioned RO set index is an index for a single RO set.
[0325] (Note 17) The method described in Appendix 16, The RO set index is first determined in ascending order of the frequency domain resource index of RO, then determined in ascending order of the time domain resource index of RO, or The aforementioned RO set index is first determined in ascending order of the RO time-domain resource index, and then determined in ascending order of the RO frequency-domain resource index. The aforementioned RO's time-domain resource index and frequency-domain resource index are determined based on the PRACH configuration index of the network device settings, or by other means.
[0326] (Note 18) A method according to any one of the items in Appendix 3-17, The quantity of the aforementioned RO set is the fifth quantity, The RO quantities in each of the RO sets of the fifth quantity are the same, or the RO quantities in each of the RO sets of the fifth quantity are different.
[0327] (Note 19) The method described in Appendix 18, If the RO quantities of some RO sets in the RO set are different, First, map RO sets with the same RO quantity, and then map the RO set index in order from low to high RO quantity within the RO set, or This method first maps RO sets with the same RO quantity, and then maps the RO set indexes in descending order of RO quantity within the RO set.
[0328] (Note 20) A method described in any one of the appendices 1-19, The maximum value of the aforementioned first quantity is the sixth quantity.
[0329] (Note 21) A method described in any one of the appendices 18-20, The fifth quantity is set by an RRC message, and / or The sixth quantity is set by an RRC message or is a default value.
[0330] (Note 22) RO setting method, wherein the method is This includes setting a first quantity of valid ROs so that the network device sends a second quantity of PRACH to the terminal device. The effective RO of the first quantity is time-domain multiplexed, or the effective RO of the first quantity is frequency-domain multiplexed, or the effective RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
[0331] (Note 23) The method described in Appendix 22, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0332] (Note 24) The method described in Appendix 22 or 23, The effective RO of the aforementioned first quantity is one RO set.
[0333] (Note 25) The method described in Appendix 22, When the effective RO of the first quantity is multiplexed in the time domain and frequency domain, The effective RO of the first quantity includes a third quantity of RO that is time-domain multiplexed and a fourth quantity of RO that is frequency-domain multiplexed. The first quantity is equal to the product of the third quantity and the fourth quantity.
[0334] (Note 26) The method described in Appendix 24, The quantity of the aforementioned RO set is the fifth quantity, The RO quantities in each of the RO sets of the fifth quantity are the same, or the RO quantities in each of the RO sets of the fifth quantity are different.
[0335] (Note 27) A method described in any one of the appendices 22-26, The maximum value of the aforementioned first quantity is the sixth quantity.
[0336] (Note 28) A method according to any one of the items in Appendix 22-27, The network device sets at least one of the first quantity, the second quantity, the third quantity, the fourth quantity, the fifth quantity, and the sixth quantity by RRC message.
[0337] (Note 29) A method described in any one of the appendices 22-28, The aforementioned network equipment configures the RO using an existing PRACH configuration table, or by other means.
[0338] (Note 30) A method for transmitting a physical random access channel (PRACH), wherein the method is: The terminal device transmits a second quantity of PRACH with a first quantity of valid RO, The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the frequency domain is the second quantity, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity is the seventh quantity, which includes the RO of PRACH, where the RO of the second quantity is the RO of which the same SSB is mapped from the starting RO.
[0339] (Note 31) The method described in Appendix 30, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0340] (Note 32) The method described in Appendix 30 or 31, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0341] (Note 33) A method described in any one of the appendices 30-32, The information for the aforementioned start RO is set by an RRC message.
[0342] (Note 34) The method described in Appendix 33, The information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO on the PRACH time domain position.
[0343] (Note 35) The method described in Appendix 34, The seventh quantity is set by the RRC message.
[0344] (Note 36) RO setting method, wherein the method is This includes setting a first quantity of valid ROs so that the network device sends a second quantity of PRACH to the terminal device. The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the time domain is the second quantity, or the RO of the seventh quantity adjacent in the time domain from the starting RO, or The effective RO of the first quantity includes the RO of the seventh quantity, which has the same SSB mapped from the starting RO, and whose RO in the frequency domain is the second quantity, or the RO of the seventh quantity adjacent in the frequency domain from the starting RO, or The effective RO of the first quantity is the seventh quantity, which includes the RO of PRACH, where the RO of the second quantity is the RO of which the same SSB is mapped from the starting RO.
[0345] (Note 37) The method described in Appendix 36, The mapping method between the SSB and RO is to reuse an existing mapping method or to adopt a different mapping method.
[0346] (Note 38) The method described in Appendix 36 or 37, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The aforementioned second quantity PRACH is a PRACH that carries a different preamble, or A second quantity of PRACH is such that a portion of it carries the same preamble, and the other portion of it carries different preambles.
[0347] (Note 39) A method described in any one of the appendices 36-38, The aforementioned network device sets the information for the start RO via an RRC message.
[0348] (Note 40) The method described in Appendix 39, The information of the starting RO includes at least one of the following: the system frame in which the starting RO is located, a subframe in the system frame, a PRACH slot in the subframe, the RO position in the time domain in the PRACH slot, and the frequency domain position of the RO in the PRACH time domain.
[0349] (Note 41) The method described in Appendix 36, The aforementioned network device sets the seventh quantity via an RRC message.
Claims
1. A physical random access channel (PRACH) transmission device, wherein the device is installed in terminal equipment, and the device is It includes a first transmitting unit, which is used to transmit a second quantity of PRACH with a first quantity of RO, An apparatus in which the RO of the first quantity is time-domain multiplexed, or the RO of the first quantity is frequency-domain multiplexed, or the RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
2. The apparatus according to claim 1, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The PRACH of the second quantity is a PRACH that carries a different preamble, or A device in which a portion of the second quantity of PRACHs are PRACHs that carry the same preamble, and the other portion of the second quantity of PRACHs are PRACHs that carry different preambles.
3. The apparatus according to claim 1, The first quantity is equal to the second quantity, or A device wherein the first quantity is equal to or greater than the second quantity.
4. The apparatus according to claim 1, The aforementioned first quantity of RO is one RO set, in this apparatus.
5. The apparatus according to claim 1, When the RO of the first quantity is time-domain multiplexed, The apparatus wherein the RO of the first quantity is a time-domain multiplexed RO to which the same SSB is mapped, or the RO of the first quantity is an adjacent RO in the time domain.
6. The apparatus according to claim 1, When the aforementioned first quantity RO is frequency domain multiplexed, The aforementioned first quantity RO is the first quantity RO that is frequency-domain multiplexed and to which the same SSB is mapped, or An apparatus in which the aforementioned first quantity RO is the RO of an adjacent first quantity in the frequency domain.
7. The apparatus according to claim 1, When the aforementioned first quantity RO is multiplexed in the time domain and frequency domain, The first quantity of RO includes a third quantity of RO that is time-domain multiplexed and mapped to the same SSB, and a fourth quantity of RO that is frequency-domain multiplexed and mapped to the same SSB, or The aforementioned first quantity RO includes a third quantity RO adjacent in the time domain and a fourth quantity RO adjacent in the frequency domain. An apparatus in which the first quantity is equal to the product of the third quantity and the fourth quantity.
8. The apparatus according to claim 1, When the aforementioned first quantity RO is multiplexed in the time domain and frequency domain, the RO in the RO set is determined by the following steps, i.e., Determine one RO in the RO set of the fifth quantity according to the ascending RO of the frequency domain resource index; Determine one RO in the five RO sets according to the ascending RO of the time-domain resource index in one PARCH slot; Determine one RO in the set of ROs of the five quantities according to the ascending RO of the PRACH slot index; and An apparatus for sequentially and cyclically determining the RO in each RO set until the allocation of the five aforementioned RO sets is completed.
9. The apparatus according to claim 4, The aforementioned RO group index is an index for one RO group, The RO set index is first determined in ascending order of the frequency domain resource index of RO, then determined in ascending order of the time domain resource index of RO, or The RO set index is first determined in ascending order of the RO time-domain resource index, and then determined in ascending order of the RO frequency-domain resource index, in the apparatus.
10. The apparatus according to claim 4, The quantity of the aforementioned RO set is the fifth quantity, An apparatus in which the number of RO units in each of the five RO sets is the same, or the number of RO units in each of the five RO sets is different.
11. The apparatus according to claim 10, When the RO quantities of some RO sets in the aforementioned RO set are different, First, map RO sets with the same RO quantity, and then map the RO set index in order from low to high RO quantity in the RO set, or A device that first maps RO sets with the same RO quantity, and then maps the RO set index in order from high to low RO quantity within the RO set.
12. The apparatus according to claim 1, The maximum value of the first quantity is the sixth quantity, The sixth quantity is set by an RRC message or is a default value for the device.
13. The apparatus according to claim 1, An apparatus in which at least one of the first quantity, the second quantity, the third quantity, the fourth quantity, and the fifth quantity is set by an RRC message.
14. RO setting device, wherein the device is installed on network equipment, and the device is It includes a first setting unit, which is used to set a first quantity RO that transmits a second quantity PRACH in correspondence with terminal equipment. An apparatus in which the RO of the first quantity is time-domain multiplexed, or the RO of the first quantity is frequency-domain multiplexed, or the RO of the first quantity is time-domain and frequency-domain multiplexed, and the first quantity and the second quantity are positive integers of 2 or more.
15. The apparatus according to claim 14, The aforementioned second quantity PRACH is a PRACH that carries the same preamble, or The PRACH of the second quantity is a PRACH that carries a different preamble, or A device in which a portion of the second quantity of PRACHs are PRACHs that carry the same preamble, and the other portion of the second quantity of PRACHs are PRACHs that carry different preambles.
16. The apparatus according to claim 14, The aforementioned first quantity of RO is one RO set, in this apparatus.
17. The apparatus according to claim 14, When the aforementioned first quantity RO is multiplexed in the time domain and frequency domain, The aforementioned first quantity RO includes a third quantity RO that is time-domain multiplexed and a fourth quantity RO that is frequency-domain multiplexed. An apparatus in which the first quantity is equal to the product of the third quantity and the fourth quantity.
18. The apparatus according to claim 16, The quantity of the aforementioned RO set is the fifth quantity, An apparatus in which the number of RO units in each of the five RO sets is the same, or the number of RO units in each of the five RO sets is different.
19. The apparatus according to claim 14, The maximum value of the first quantity is the sixth quantity, in the apparatus.
20. The apparatus according to claim 14, The first setting unit is a device that sets at least one of the first quantity, the second quantity, the third quantity, the fourth quantity, the fifth quantity, and the sixth quantity by means of an RRC message.