WO2024093789A1 - Procédé et appareil d'accès aléatoire, puce et dispositif de module - Google Patents

Procédé et appareil d'accès aléatoire, puce et dispositif de module Download PDF

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Publication number
WO2024093789A1
WO2024093789A1 PCT/CN2023/126810 CN2023126810W WO2024093789A1 WO 2024093789 A1 WO2024093789 A1 WO 2024093789A1 CN 2023126810 W CN2023126810 W CN 2023126810W WO 2024093789 A1 WO2024093789 A1 WO 2024093789A1
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WIPO (PCT)
Prior art keywords
random access
resource group
field
access message
signaling
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PCT/CN2023/126810
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English (en)
Chinese (zh)
Inventor
张萌
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展讯通信（上海）有限公司
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Publication of WO2024093789A1 publication Critical patent/WO2024093789A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of communication technology, and in particular to a random access method, device, chip and module equipment.
  • Msg Random Access Message One
  • Msg2 One or more responses to the Msg1 preamble transmitted by the gNB, providing further information and scheduling for Msg3.
  • Msg3 L2/L3 message.
  • Msg4 Contention solution.
  • Msg1 is the first interactive message. If Msg1 is lost during the interaction process due to network reasons, the UE will not be able to access the gNB normally. Therefore, how to improve the success rate of random access is an urgent problem to be solved.
  • the present application provides a random access method, device, chip and module equipment, which are conducive to improving the success rate of random access.
  • the present application provides a random access method, the method comprising: receiving a first signaling sent by a network device, the first signaling comprising a first field, the first field being used to indicate a first random access channel opportunity (PRACH Occasion, RO) resource group, the first RO resource group comprising multiple RO resources, the first RO resource group being used to repeatedly transmit a random access message one; and repeatedly transmitting the random access message one based on the first RO resource group.
  • PRACH Occasion, RO random access channel opportunity
  • the probability of the network device receiving the random access message 1 is increased, thereby improving the success rate of random access of the terminal device.
  • the method further includes: receiving configuration information sent by the network device, where the configuration information is used to configure the correspondence between the candidate value of the first field and the RO resource group.
  • the configuration information is sent to the terminal device through the network device, so that the corresponding relationship between the candidate value of the first field and the RO resource group is more flexible.
  • each candidate value of the first field has a corresponding relationship with the RO resource group, or a reserved candidate value of the first field has a corresponding relationship with the RO resource group.
  • each candidate value of the first field has a corresponding relationship with the RO resource group, so that the available RO resource groups are increased, and the reserved candidate value of the first field has a corresponding relationship with the RO resource group, following the existing protocol.
  • the first field indicates a first RO resource group by indicating a first synchronization signal block (SSB) group; the method also includes: determining the first RO resource group based on a correspondence between SSBs and ROs in the first SSB group.
  • SSB synchronization signal block
  • the first field not only indicates the first SSB group but also can determine the first RO resource group, thus saving transmission resources.
  • the first field indicates the first RO resource group by indicating a first synchronization signal block SSB; the method further includes: determining the first RO resource group based on a corresponding relationship between the first SSB and the RO.
  • the first field not only indicates the first SSB but also can determine the first RO resource group, thus saving transmission resources.
  • the first field also indicates the number of repeated transmissions of the random access message one; repeatedly transmitting the random access message one based on the first RO resource group includes: repeatedly transmitting the random access message one based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the method also includes: determining the number of repeated transmissions of random access message one based on the number of SSBs included in the first SSB group; and repeatedly transmitting the random access message one based on the first RO resource group, including: repeatedly transmitting the random access message one based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the method further includes: based on the number of RO resources included in the first RO resource group Determine the number of repeated transmissions of the random access message one; repeatedly transmit the random access message one based on the first RO resource group, including: repeatedly transmit the random access message one based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the first signaling also includes a second field, and the second field is used to indicate the number of repeated transmissions of random access message one; repeatedly transmitting random access message one based on the first RO resource group includes: repeatedly transmitting random access message one based on the first RO resource group and the number of repeated transmissions of random access message one.
  • the number of repeated transmissions of the random access message 1 is indicated by a separate field, which can more flexibly indicate the number of repeated transmissions.
  • the first signaling is a physical downlink control channel PDCCH command.
  • the first signaling is RRC signaling
  • the first field is located in a BFR configuration information element in the RRC signaling.
  • the present application provides a random access method, the method comprising: sending a first signaling to a terminal device, the first signaling comprising a first field, the first field being used to indicate a first random access channel opportunity RO resource group, the first RO resource group comprising multiple RO resources, the first RO resource group being used to repeatedly transmit a random access message one; receiving a random access message one transmitted by the terminal device based on the first RO resource group.
  • the method further includes: sending configuration information to the terminal device, where the configuration information is used to configure the correspondence between the candidate value of the first field and the RO resource group.
  • each candidate value of the first field has a corresponding relationship with the RO resource group, or a reserved candidate value of the first field has a corresponding relationship with the RO resource group.
  • the first field indicates the first RO resource group by indicating the first synchronization signal block SSB group.
  • the first field indicates the first RO resource group by indicating a first synchronization signal block SSB.
  • the first field further indicates the number of repeated transmissions of the random access message 1;
  • An RO resource group receives a random access message 1 transmitted by a terminal device, including: receiving the random access message 1 transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the first signaling also includes a second field, and the second field is used to indicate the number of repeated transmissions of the random access message one; receiving the random access message one transmitted by the terminal device based on the first RO resource group includes: receiving the random access message one transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the first signaling is a physical downlink control channel PDCCH command.
  • the first signaling is RRC signaling
  • the first field is located in a BFR configuration information element in the RRC signaling.
  • an embodiment of the present application provides a random access device, which includes a unit for executing the method described in the first aspect or the second aspect above.
  • the present application provides a chip, comprising a processor and a communication interface, wherein the processor is configured to enable the chip to execute the method described in the first aspect or the second aspect above.
  • the present application provides a module device, which includes a communication module, a power module, a storage module and a chip, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used for internal communication of the module device, or for the module device to communicate with external devices; the chip is used to execute the method described in the first aspect or the second aspect above.
  • an embodiment of the present invention discloses a random access device, which includes a memory and a processor, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method described in the first aspect or the second aspect above.
  • the present application provides a computer-readable storage medium, which stores computer-readable instructions.
  • the computer-readable instructions When executed on a communication device, the communication device executes the method described in the first or second aspect above.
  • the present application provides a computer program or a computer program product, comprising codes or instructions, which, when executed on a computer, enable the computer to execute the method described in the first or second aspect above.
  • FIG1 is a schematic diagram of a system architecture of a random access method provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of a process of establishing a random access connection provided in an embodiment of the present application
  • FIG3 is a schematic diagram of a flow chart of a random access method provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of configuration information provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of the structure of a random access device provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of the structure of another random access device provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the structure of a module device provided in an embodiment of the present application.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • NR new radio
  • Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application, and the solution in the present application can be applied to the communication system.
  • the communication system may include a network device and at least one terminal device, and Figure 1 takes the communication system including a network device and three terminal devices as an example.
  • the terminal device includes a device that provides voice and/or data connectivity to the user.
  • the terminal device is a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).
  • the terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, etc.
  • the embodiments of the present application do not limit the application scenarios.
  • a terminal may sometimes also be referred to as a terminal device, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, terminal equipment, wireless communication equipment, UE agent or UE device, etc.
  • a terminal may also be fixed or mobile.
  • a device for realizing the function of a terminal device may be a terminal device, or may be a device that can support the terminal device to realize the function, such as a chip system or a combination device or component that can realize the function of a terminal device, and the device may be installed in the terminal device.
  • the network device in the embodiment of the present application refers to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network, which can also be called a base station.
  • the radio access network device can also be called: a further evolved Node B (gNB), a transmission reception point (TRP), an evolved Node B (eNB), a radio network controller (RNC), a Node B (eNB ... B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wifi) access point (AP), etc.
  • gNB further evolved Node B
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B eNB ... B, NB
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or
  • the network device can be a module or unit that completes part of the functions of the base station, for example, it can be a centralized unit (CU) or a distributed unit (DU).
  • the CU here completes the functions of the radio resource control protocol and the packet data convergence layer protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP);
  • the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer.
  • 3GPP 3rd Generation Partnership Project
  • the network device can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, etc.
  • the device for realizing the function of the network device can be the network device itself, or a device that can support the network device to realize the function, such as a chip system or a combination device or component that can realize the function of the network device, and the device can be installed in the network device.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.
  • Random access is mainly divided into competitive random access and non-competitive random access.
  • a terminal device randomly selects a preamble from a preamble pool shared with other terminal devices. This may result in two terminal devices selecting the same preamble, which may cause a conflict or contention.
  • the network device uses a contention resolution mechanism to handle this type of access request.
  • the process can be seen in Figure 2, which is as follows: When the terminal device attempts to access the network, it first sends a random access preamble Msg1 to the network device on the random access channel (RACH). The random access preamble is used to identify the terminal device during random access. After receiving the random access preamble Msg1, the network device returns a random access response Msg2 on the downlink shared channel (DL-SCH).
  • RACH random access channel
  • the random access response Msg2 carries uplink authorization instructions and time synchronization adjustment instructions. After receiving the random access response Msg2, the terminal device determines whether it is a random access response message belonging to the terminal device itself, and sends a connection establishment request Msg3 to the network device. Finally, the network device sends an RRC connection establishment Msg4 to the terminal device. If the terminal device correctly receives Msg4, the contention resolution is completed.
  • Non-contention random access The preamble is allocated by the network device and is called a dedicated random access preamble.
  • the dedicated random access preamble is provided to the terminal device via (Radio Resource Control, RRC) signaling or physical layer signaling, so there is no sign-in code conflict.
  • RRC Radio Resource Control
  • the present application provides a random access method, device, chip and module equipment.
  • the random access, device, chip and module equipment provided by the embodiments of the present application are further described in detail below.
  • FIG3 is a flow chart of a random access method provided in an embodiment of the present application.
  • the random access method includes the following steps 301 to 302.
  • the execution subject of the method shown in FIG3 may be a terminal device and a network device.
  • the execution subject of the method shown in FIG3 may be a chip in a terminal device and a chip in a network device.
  • the embodiment of the present application does not uniquely limit the execution subject of the method, and the corresponding execution subject may also be any device, chip or software module that can provide the implementation of the method, or a combination thereof.
  • the execution subject of the method shown in FIG3 takes a terminal device and a network device as an example. Among them:
  • a network device sends a first signaling to a terminal device, the first signaling comprising a first field, the first field being used to indicate a first random access channel opportunity RO resource group, the first RO resource group comprising a plurality of RO resources, the first RO resource group being used to repeatedly transmit a random access message 1. Accordingly, the terminal device may receive the first signaling.
  • the first signaling is a signaling sent by the network device to the terminal device before the terminal device sends Msg1 to the network device, where Msg1 includes a random access preamble code.
  • the first signaling is a physical downlink control channel order (PDCCH order).
  • the PDCCH order is a command sent by a network device to a terminal device to trigger the terminal device to initiate random access.
  • the name of the first field may be a PRACH mask index (PRACH Mask Index).
  • PRACH Mask Index PRACH Mask Index
  • the name of the first field may also be other names, which are not limited in the embodiments of the present application.
  • the first signaling is RRC signaling
  • the first field is located in a BFR configuration information element in the RRC signaling.
  • each candidate value of the first field has a correspondence with the RO resource group, or there is a correspondence between the reserved candidate value of the first field and the RO resource group.
  • the PRACH Mask Index can be redefined
  • the relationship between the candidate values 1-8 in the original PRACH Mask Index corresponds to an RO resource, and candidate values 11-15 are reserved candidate values.
  • the relationship between all candidate values and RO resources in the PRACH Mask Index can be redefined so that one candidate value corresponds to one RO resource group. For example, as shown in Figure 4, when the candidate value of the first field is 0, the corresponding first RO resource group is RO resource group 1; when the candidate value of the first field is 1, the corresponding first RO resource group is RO resource group 2, and so on. Any RO resource group includes one or more RO resources.
  • any RO resource group can include at least two RO resources.
  • the correspondence between the candidate value of the first field and the RO resource group is predefined by the protocol.
  • the network device does not need to configure relevant configuration information for the terminal device, which is conducive to saving transmission resources.
  • the method further includes: the network device sends configuration information to the terminal device, the configuration information is used to configure the correspondence between the candidate value of the first field and the RO resource group. Accordingly, the terminal device can also receive the configuration information sent by the network device.
  • the network device can configure the terminal device with relevant configuration information, that is, the configuration information shown in FIG4 is not fixed, and the network device can resend the configuration information to change it, thereby making the configuration information more flexible.
  • the configuration information can be carried by high-level signaling, such as RRC signaling or MAC-CE signaling.
  • the first field indicates the first RO resource group by indicating the first synchronization signal block SSB group; the terminal device can also determine the first RO resource group based on the correspondence between SSB and RO in the first SSB group.
  • the correspondence between the SSB and the RO in the first SSB group may be pre-specified by the protocol, may be configured by the network device for the terminal device, or may be specified in other ways, which are not limited here.
  • the correspondence between the SSB and the RO in the first SSB group is shown in Table 1 below:
  • the first RO resource group indicated by the first field is an RO resource group including RO1, RO2, RO3 and RO4.
  • the total number of retransmissions of random access message one is the number of all RO resources corresponding to the first SSB group.
  • the first field indicates the first RO resource group by indicating the first synchronization signal block SSB; the terminal device can also determine the first RO resource group based on the correspondence between the SSB and the RO in the first SSB.
  • the corresponding relationship between the first SSB and the RO can be pre-specified by the protocol, or configured by the network device for the terminal device, or specified in other ways, which is not limited here.
  • the ROs included in the first RO resource group are RO1 and RO2; if the first SSB is SSB2, since the RO resources corresponding to SSB2 are RO3 and RO3, the ROs included in the first RO resource group are RO3 and RO4.
  • the total number of retransmissions of the random access message one is the number of all RO resources corresponding to the first SSB.
  • SSB may have a corresponding relationship with the beam, for example, as shown in Table 2 below:
  • the beam 1 corresponding to the SSB1 can be determined. If the SSBs included in an SSB group are: SSB1 and SSB2, then the beams corresponding to the SSB group are beam 1 and beam 2. That is, through the above Table 1 and Table 2, the corresponding multiple beams can be determined according to the first field.
  • the terminal device repeatedly transmits the random access message 1 based on the first RO resource group.
  • the network device receives the random access message 1 transmitted by the terminal device based on the first RO resource group.
  • the terminal device may use the same or different transmission beams to repeatedly transmit the random access message 1 based on the first RO resource group.
  • the first field also indicates the number of repeated transmissions of the random access message 1; the terminal device repeatedly transmits the random access message 1 based on the first RO resource group, specifically: the terminal device repeatedly transmits the random access message 1 based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the network device receives the random access message 1 transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the terminal device determines the number of repeated transmissions of the random access message 1 based on the first field.
  • the first field also indicates the number of repeated transmissions of the random access message 1.
  • Case 1 The candidate value of the first field has a corresponding relationship with the RO resource group, and the candidate value of the first field has a corresponding relationship with the number of repeated transmissions.
  • the number of repeated transmissions in Table 3 can be interpreted as the total number of repeated transmissions of the random access message 1, or as the number of repeated transmissions of the random access message 1 corresponding to an RO resource indicated by the first field.
  • the first RO resource group indicated by the first field is RO resource group 1
  • the ROs included in RO resource group 1 are: RO1, RO2, and the total number of repeated transmissions indicated by the first field is 2.
  • the candidate value of the first field is 1, the first RO resource group indicated by the first field is RO resource group 2, the ROs included in RO resource group 2 are: RO1, RO3, RO4, and the total number of repeated transmissions indicated by the first field is 3.
  • the candidate value of the first field is 2
  • the first RO resource group indicated by the first field is RO resource group 3
  • the ROs included in RO resource group 3 are: RO1, RO2, RO3, RO4, and the total number of repeated transmissions indicated by the first field is 4.
  • the number of repetitions of the random access message 1 indicated by the first field is the total number of repetitions of the random access message 1.
  • the number of repetitions of the random access message 1 indicated by the first field is the number of repetitions of the random access message 1 corresponding to an RO resource in the RO resource group.
  • the total number of repetitions of the random access message 1 is a multiple of the number of RO resources in the RO resource group.
  • the number of transmissions may be multiples of the number of RO resources in the RO resource group. For example, assuming that the number of repetitions of the random access message 1 indicated by the first field is 2, and the number of RO resources in the RO resource group is 2, the total number of repetitions of the random access message 1 may be 4.
  • Case 2 The candidate value of the first field has a corresponding relationship with the SSB group, and the first field indicates the number of repeated transmissions of the random access message one.
  • the number of repeated transmissions in Table 4 can be interpreted as the total number of repeated transmissions of the random access message one, or as the number of repeated transmissions of the random access message one corresponding to an SSB indicated by the first field.
  • the first SSB group indicated by the first field is SSB group 1, and the SSBs included in SSB group 1 are: SSB1, SSB2, SSB3, and the total number of repeated transmissions indicated by the first field is 2. If the candidate value of the first field is 1, the first SSB group indicated by the first field is SSB group 2, and the SSBs included in SSB group 2 are: SSB1, SSB3, SSB4, and the total number of repeated transmissions indicated by the first field is 3.
  • the candidate value of the first field is 2
  • the first SSB group indicated by the first field is SSB group 3
  • the SSBs included in SSB group 3 are: SSB2, SSB3, SSB4, and the total number of repeated transmissions indicated by the first field is 4.
  • the number of repeated transmissions of the random access message one indicated by the first field is the total number of repeated transmissions of the random access message one.
  • the number of repeated transmissions of the random access message one indicated by the first field is the number of repeated transmissions of the random access message one corresponding to an SSB in the SSB group.
  • the total number of repeated transmissions of the random access message one is in a multiple relationship with the number of SSBs in the SSB group, and the total number of repeated transmissions of the random access message one can be a multiple of the number of SSBs in the SSB group. For example, assuming that the number of repeated transmissions of the random access message one indicated by the first field is 2 times, and the number of SSBs in the SSB group is 2, the total number of repeated transmissions of the random access message one can be 4.
  • Case 3 The candidate value of the first field has a corresponding relationship with the SSB, and the first field indicates the random access message 1 Number of retransmissions.
  • the first SSB indicated by the first field is SSB1, and the total number of repeated transmissions indicated by the first field is 2. If the candidate value of the first field is 1, the first SSB indicated by the first field is SSB2, and the total number of repeated transmissions indicated by the first field is 3. If the candidate value of the first field is 2, the first SSB indicated by the first field is SSB3, and the total number of repeated transmissions indicated by the first field is 4.
  • Mode 2 The terminal device determines the number of repeated transmissions of the random access message 1 based on the number of SSBs included in the first SSB group; the terminal device repeatedly transmits the random access message 1 based on the first RO resource group; the terminal device may also repeatedly transmit the random access message 1 based on the first RO resource group and the number of repeated transmissions of the random access message 1. Accordingly, the network device receives the random access message 1 transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the terminal device determines the total number of repetitions of the random access message 1 by determining the number of SSBs included in the first SSB group. For example, the total number of repetitions of the random access message 1 is the same as the number of SSBs included in the first SSB group, or the total number of repetitions of the random access message 1 is a multiple of the number of SSBs included in the first SSB group.
  • Mode 3 The terminal device determines the number of repeated transmissions of the random access message 1 based on the number of RO resources included in the first RO resource group indicated by the first field; the terminal device repeatedly transmits the random access message 1 based on the first RO resource group; the terminal device may also repeatedly transmit the random access message 1 based on the first RO resource group and the number of repeated transmissions of the random access message 1. Accordingly, the network device receives the random access message 1 transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the terminal device determines the random access by determining the number of RO resources included in the first RO resource group. Total number of repetitions of message 1. For example, the total number of repetitions of random access message 1 is the same as the number of RO resources included in the first RO resource group, or the total number of repetitions of random access message 1 is a multiple of the number of RO resources included in the first RO resource group.
  • the first signaling further includes a second field, and the second field is used to indicate the number of repeated transmissions of the random access message 1; the terminal device repeatedly transmits the random access message 1 based on the first RO resource group.
  • the terminal device repeatedly transmits the random access message 1 based on the first RO resource group, specifically: the terminal device repeatedly transmits the random access message 1 based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the network device receives the random access message 1 transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message 1.
  • the number of repeated transmissions indicated by the second field may be the number of repeated transmissions of the random access message 1 corresponding to an SSB or an RO resource, or the total number of repeated transmissions of the random access message 1.
  • this method uses a separate field to indicate the number of repeated transmissions of the random access message 1, rather than a joint indication, and can indicate the number of repeated transmissions more flexibly.
  • the random access device can be used to perform some or all of the functions of the terminal device in the above method embodiment.
  • the device can be a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device.
  • the random access device can also be a chip system.
  • the random access device shown in Figure 5 includes a communication unit 501.
  • the random access device may also include a processing unit, which performs data processing. Among them:
  • a communication unit 501 is configured to receive a first signaling sent by a network device, the first signaling comprising a first field, the first field being used to indicate a first random access channel opportunity RO resource group, the first RO resource group comprising a plurality of RO resources, the first RO resource group being used to repeatedly transmit a random access message 1;
  • the communication unit 501 is further configured to repeatedly transmit the random access message 1 based on the first RO resource group.
  • the communication unit 501 is further used to receive configuration information sent by the network device, and the configuration information is used to configure the correspondence between the candidate value of the first field and the RO resource group.
  • each candidate value of the first field has a corresponding relationship with the RO resource group, or a reserved candidate value of the first field has a corresponding relationship with the RO resource group.
  • the first field indicates the first RO resource group by indicating a first synchronization signal block SSB group;
  • the random access device also includes a processing unit, wherein: the processing unit is used to determine the first RO resource group based on the correspondence between the SSB and the RO in the first SSB group.
  • the first field indicates the first RO resource group by indicating a first synchronization signal block SSB; the processing unit is further used to: determine the first RO resource group based on the corresponding relationship between the first SSB and the RO.
  • the first field also indicates the number of repeated transmissions of the random access message one; the communication unit 501 repeatedly transmits the random access message one based on the first RO resource group specifically: based on the first RO resource group and the number of repeated transmissions of the random access message one, repeatedly transmits the random access message one.
  • the first field also indicates the number of repeated transmissions of the random access message one; the processing unit is further used to: repeatedly transmit the random access message one based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the processing unit is further used to: determine the number of repeated transmissions of random access message one based on the number of SSBs included in the first SSB group; the communication unit 501 repeatedly transmits the random access message one based on the first RO resource group, specifically: repeatedly transmits the random access message one based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the processing unit is further used to: determine the number of repeated transmissions of random access message one based on the number of RO resources included in the first RO resource group; the communication unit 501 repeatedly transmits the random access message one based on the first RO resource group, specifically: based on the first RO resource group and the number of repeated transmissions of random access message one, repeatedly transmit the random access message one.
  • the first signaling also includes a second field, and the second field is used to indicate the number of repeated transmissions of the random access message one; the communication unit 501 repeatedly transmits the random access message one based on the first RO resource group, specifically: based on the first RO resource group and the number of repeated transmissions of the random access message one, repeatedly transmits the random access message one.
  • the first signaling is a physical downlink control channel PDCCH command.
  • the first signaling is RRC signaling
  • the first field is located in a BFR configuration information element in the RRC signaling.
  • the random access device shown in FIG5 can also be used to perform part or all of the functions of the network device in the above method embodiment.
  • the device can be a network device, or a device in a network device, or a device that can be used in conjunction with a network device.
  • the random access device can also be a chip system.
  • the random access device can also include a processing unit, which performs data processing.
  • a communication unit 501 is configured to send a first signaling to a terminal device, the first signaling comprising a first field, the first field being used to indicate a first random access channel opportunity RO resource group, the first RO resource group comprising a plurality of RO resources, the first RO resource group being used to repeatedly transmit a random access message 1;
  • the communication unit 501 is further configured to receive a random access message 1 transmitted by a terminal device based on the first RO resource group.
  • the communication unit 501 is further used to send configuration information to the terminal device, where the configuration information is used to configure the correspondence between the candidate value of the first field and the RO resource group.
  • each candidate value of the first field has a corresponding relationship with the RO resource group, or a reserved candidate value of the first field has a corresponding relationship with the RO resource group.
  • the first field indicates the first RO resource group by indicating the first synchronization signal block SSB group.
  • the first field indicates the first RO resource group by indicating a first synchronization signal block SSB.
  • the first field also indicates the number of repeated transmissions of the random access message one; the communication unit 501 receives the random access message one transmitted by the terminal device based on the first RO resource group, specifically: receiving the random access message one transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the first signaling also includes a second field, and the second field is used to indicate the number of repeated transmissions of the random access message one; the communication unit 501 receives the random access message one transmitted by the terminal device based on the first RO resource group, specifically: receiving the random access message one transmitted by the terminal device based on the first RO resource group and the number of repeated transmissions of the random access message one.
  • the first signaling is a physical downlink control channel PDCCH command.
  • the first signaling is RRC signaling
  • the first field is located in the BFR in the RRC signaling.
  • Configuration information element
  • the present application also provides a chip that can execute the steps of the terminal device in the above method embodiment.
  • the chip includes a processor and a communication interface.
  • the processor is configured to enable the chip to execute the method described in FIG. 3 of the above method embodiment.
  • the present application also provides a chip that can execute the relevant steps of the network device in the above method embodiment.
  • the chip includes a processor and a communication interface, and the processor is configured to enable the chip to execute the method described in FIG. 3 of the above method embodiment.
  • FIG. 6 is a schematic diagram of the structure of a random access device provided by an embodiment of the present invention.
  • the random access device may be a terminal device or a network device.
  • the random access device 600 may include a memory 601 and a processor 602. Optionally, it also includes a communication interface 603.
  • the memory 601, the processor 602 and the communication interface 603 are connected via one or more communication buses.
  • the communication interface 603 is controlled by the processor 602 to send and receive information.
  • the memory 601 may include a read-only memory and a random access memory, and provides instructions and data to the processor 602. A portion of the memory 601 may also include a nonvolatile random access memory.
  • the communication interface 603 is used to receive or send data.
  • the processor 602 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or, optionally, the processor 602 may be any conventional processor, etc. Among them:
  • the memory 601 is used to store program instructions.
  • the processor 602 is used to call the program instructions stored in the memory 601.
  • the processor 602 calls the program instructions stored in the memory 601 to enable the random access device 600 to execute the method executed by the terminal device or the network device in the above method embodiment.
  • FIG. 7 is a schematic diagram of the structure of a module device provided in an embodiment of the present application.
  • the module device 700 The relevant steps of the terminal device or the network device in the above method embodiment can be executed.
  • the module device 700 includes: a communication module 701 , a power module 702 , a storage module 703 and a chip 704 .
  • the power module 702 is used to provide power to the module device;
  • the storage module 703 is used to store data and instructions;
  • the communication module 701 is used for internal communication of the module device, or for the module device to communicate with external devices;
  • the chip 704 is used to execute the method executed by the terminal device or network device in the above method embodiment.
  • An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored.
  • the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product runs on a processor, the method flow of the above method embodiment is implemented.
  • the various modules/units included in the various devices and products described in the above embodiments can be software modules/units, or hardware modules/units, or they can be partially software modules/units and partially hardware modules/units.
  • the various modules/units included therein can all be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of software programs, which run on the integrated processor inside the chip, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits;
  • the various modules/units included therein can all be implemented in the form of hardware such as circuits, and different modules/units can be located in the same part of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules/units can be implemented in the form of software programs.
  • the software programs run on the integrated processor inside the chip, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits. It can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the modules/units contained therein can all be implemented in the form of hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules/units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande divulgue un procédé et un appareil d'accès aléatoire, une puce, et un dispositif de module. Le procédé consiste à : recevoir une première signalisation envoyée par un dispositif réseau, la première signalisation comprenant un premier champ, le premier champ étant utilisé pour indiquer un premier ensemble de ressources d'occasion de canal d'accès aléatoire (RO), le premier ensemble de ressources RO comprenant une pluralité de ressources RO, et le premier ensemble de ressources RO étant utilisé pour transmettre de manière répétée un premier message d'accès aléatoire ; et transmettre de manière répétée le premier message d'accès aléatoire sur la base du premier ensemble de ressources RO. La présente demande facilite l'amélioration du taux de réussite d'accès aléatoire.
PCT/CN2023/126810 2022-10-31 2023-10-26 Procédé et appareil d'accès aléatoire, puce et dispositif de module WO2024093789A1 (fr)

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WO2022028374A1 (fr) * 2020-08-04 2022-02-10 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil de répétition de pusch dans une procédure d'accès aléatoire
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CN116367313A (zh) * 2021-12-24 2023-06-30 维沃移动通信有限公司 Msg1重复传输的时频资源确定方法、装置及终端
CN116419417A (zh) * 2021-12-29 2023-07-11 展讯通信（上海）有限公司 一种随机接入方法及装置
CN116419419A (zh) * 2021-12-29 2023-07-11 展讯通信（上海）有限公司 一种随机接入方法、装置、芯片及模组设备

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CN115211219A (zh) * 2020-03-05 2022-10-18 创新技术实验室株式会社 无线通信系统中降低能力的用户设备的随机接入方法和装置
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