WO2021012279A1 - 随机接入方法、装置及存储介质 - Google Patents

随机接入方法、装置及存储介质 Download PDF

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Publication number
WO2021012279A1
WO2021012279A1 PCT/CN2019/097781 CN2019097781W WO2021012279A1 WO 2021012279 A1 WO2021012279 A1 WO 2021012279A1 CN 2019097781 W CN2019097781 W CN 2019097781W WO 2021012279 A1 WO2021012279 A1 WO 2021012279A1
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WO
WIPO (PCT)
Prior art keywords
pusch
random access
uplink control
control information
sent
Prior art date
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PCT/CN2019/097781
Other languages
English (en)
French (fr)
Inventor
牟勤
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to US17/628,870 priority Critical patent/US11864241B2/en
Priority to CN201980001463.0A priority patent/CN110574484B/zh
Priority to PCT/CN2019/097781 priority patent/WO2021012279A1/zh
Publication of WO2021012279A1 publication Critical patent/WO2021012279A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • 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
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a random access method, device and storage medium.
  • a new random access mechanism is introduced in the random access (Random Access Channel, RACH) technology to shorten the access delay.
  • RACH Random Access Channel
  • Msg.A is transmitted in the first step
  • Msg.B is received in the second step, which is called 2-step random access (2-step RACH).
  • the terminal when it adopts the 2-step RACH mechanism for random access, if it needs to feed back uplink control information (UCI), the UCI is integrated into the physical uplink shared channel for transmitting Msg.A in the first step. (Physical Uplink Shared Channel, PUSCH) for transmission.
  • Msg.A Physical Uplink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • the PUSCH of Msg.A is a common resource, and there is a possibility of transmission failure.
  • the integration of UCI into the PUSCH of transmitting Msg.A for transmission has the possibility of transmission failure.
  • the present disclosure provides a random access method, device, and storage medium to reduce the possibility of uplink control information transmission failure.
  • a random access method applied to a terminal including:
  • determining whether to allow the uplink control information to be integrated and transmitted in the PUSCH includes:
  • a preset transmission rule it is determined whether to allow the uplink control information to be integrated and sent in the PUSCH.
  • the preset transmission rule is determined in advance according to the communication link state in the following manner: if the communication link is in an abnormal state, the uplink control information is allowed to be integrated and sent in the PUSCH; if the communication link is in a normal state, then The uplink control information is not allowed to be integrated and sent in the PUSCH.
  • the abnormal state of the communication link includes one or a combination of the following states: downlink data arrives but uplink out of synchronization state;
  • the uplink data arrives but the uplink is out of synchronization; the beam connection fails.
  • the normal state of the communication link includes one or a combination of the following states: the uplink data arrives but there is no PUCCH resource state for transmitting the scheduling request; the uplink data arrives but the scheduling request fails.
  • the random access method involved in the present disclosure further includes:
  • message A After determining that the uplink control information is sent on the PUCCH, message A is transmitted and message B is received.
  • the random access method involved in the present disclosure further includes:
  • the PUSCH allocation resource is determined according to the message B, and the PUSCH is sent on the PUSCH allocation resource.
  • a random access method applied to a network device including:
  • a random access device applied to a terminal including:
  • the processing unit is configured to determine that there is uplink control information sent simultaneously with the physical uplink shared channel PUSCH of message A; the sending unit is configured to determine whether to allow the uplink control information to be integrated and sent in the PUSCH; If the uplink control information is integrated and sent in the PUSCH, then the uplink control information is integrated and sent in the PUSCH; if the uplink control information is not allowed to be integrated and sent in the PUSCH, then the physical uplink control The uplink control information is sent on the channel PUCCH.
  • the sending unit is configured to determine whether to allow the uplink control information to be integrated and sent in the PUSCH in the following manner:
  • a preset transmission rule it is determined whether to allow the uplink control information to be integrated and sent in the PUSCH.
  • the preset transmission rule is determined in advance according to the communication link state in the following manner: if the communication link is in an abnormal state, the uplink control information is allowed to be integrated and sent in the PUSCH; if the communication link is in a normal state, then The uplink control information is not allowed to be integrated and sent in the PUSCH.
  • the abnormal state of the communication link includes one or a combination of the following states: downlink data arrives but uplink out of synchronization state; uplink data arrives but uplink out of sync state; beam connection failure state.
  • the normal state of the communication link includes one or a combination of the following states: the uplink data arrives but there is no PUCCH resource state for transmitting the scheduling request; the uplink data arrives but the scheduling request fails.
  • the sending unit is further configured to: after determining that the uplink control information is sent on the PUCCH, the message A is transmitted.
  • the device also includes a receiving unit configured to receive message B.
  • the sending unit is further configured to send a random access preamble before sending the uplink control information on the PUCCH.
  • the apparatus further includes a receiving unit configured to receive message B after determining that the uplink control information is sent on the PUCCH, and the message B includes information that characterizes PUSCH allocation resources.
  • the sending unit is further configured to determine PUSCH allocation resources according to the message B, and send the PUSCH on the PUSCH allocation resources.
  • a random access device applied to network equipment including:
  • the receiving unit is configured to determine that the random access preamble is received but the physical uplink shared channel PUSCH of message A is not received; the sending unit is configured to send message B, and the message B includes information that characterizes PUSCH allocation resources .
  • a random access device which is characterized in that it is applied to a terminal and includes: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured The method is to execute the random access method described in the first aspect or any one of the implementation manners of the first aspect.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal can execute the first aspect or the first aspect described above. On the one hand, the random access method described in any implementation manner.
  • a random access device applied to network equipment including:
  • a processor ; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the random access method described in the second aspect.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor of a network device, the network device can execute the above-mentioned second aspect. Random access method.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: when it is determined that there is uplink control information sent simultaneously with the PUSCH of message A, it is determined whether to allow the uplink control information to be integrated and sent in the PUSCH. If the uplink control information is allowed to be integrated and sent in the PUSCH, the uplink control information is integrated and sent in the PUSCH. If the uplink control information is not allowed to be integrated and sent in the PUSCH, then the uplink control information is sent on the PUCCH. It can reduce the possibility of uplink control information transmission failure.
  • Fig. 1 is a schematic diagram showing a wireless communication system according to some exemplary embodiments.
  • Fig. 2 is a flow chart showing a random access method according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing another random access method according to an exemplary embodiment.
  • Fig. 4 is a flowchart showing yet another random access method according to an exemplary embodiment.
  • Fig. 5 is a block diagram showing a random access device according to an exemplary embodiment.
  • Fig. 6 is a block diagram showing a random access device according to an exemplary embodiment.
  • Fig. 7 is a block diagram showing a device according to an exemplary embodiment.
  • Fig. 8 is a block diagram showing a device according to an exemplary embodiment.
  • the present disclosure provides a random access method, which can be applied to the wireless communication system shown in FIG. 1.
  • a terminal accesses the network through a network device such as a base station, and the network device and the core network complete Data back and forward transmission for various communication services.
  • a wireless communication system is a network that provides wireless communication functions.
  • the wireless communication system can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , Frequency Division Multiple Access (FDMA), Orthogonal Frequency-Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (Single Carrier FDMA, SC-FDMA), Carrier Sense Multiple access/conflict avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • Single Carrier Frequency Division Multiple Access Single Carrier Frequency Division Multiple Access
  • SC-FDMA Carrier Sense Multiple access/conflict avoidance
  • Carrier Sense Multiple Access with Collision Avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • the network in the present disclosure may include a radio access network (Radio Access Network, RAN) and a core network (Core Network, CN).
  • the network includes network equipment, which may be, for example, a wireless access network node, core network equipment, and so on. Among them, the radio access network node may also be called a base station.
  • the network can provide network services for the terminal through network equipment, and different operators can provide different network services for the terminal. It can also be understood that different operators correspond to different operator networks.
  • a terminal which can also be called User Equipment (UE), Mobile Station (MS), Mobile Terminal (MT), etc.
  • UE User Equipment
  • MS Mobile Station
  • MT Mobile Terminal
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, etc.
  • some examples of terminals are: smart phones (Mobile Phone), Pocket Computers (Pocket Personal Computer, PPC), handheld computers, Personal Digital Assistants (PDAs), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • Fig. 2 is a flow chart showing a 2-step RACH random access method according to an exemplary embodiment.
  • the terminal when performing random access, the terminal first obtains a synchronization broadcast block to obtain synchronization and system messages. Then, a random access preamble (Preamble) is sent in a physical random access channel (Physical Random Access Channel, PRACH) corresponding to the acquired synchronous broadcast block.
  • Preamble Physical Random Access Channel
  • the message A (Msg.A) is transmitted in Step 1, that is, the terminal selects the appropriate preamble to send on the PRACH resource, and the network device will perform the preamble detection on the corresponding PRACH.
  • the terminal transmits payload data (payload) information on the corresponding PUSCH resource, where the payload information includes the equivalent information of Msg.3 in traditional 4-step random access, such as user identification (Identity, ID), and may also include part of user data .
  • the network device detects the preamble, it will receive data on the corresponding PUSCH.
  • message B (Msg.B) is transmitted, that is, when the network device successfully receives the preamble or preamble and data, it sends Msg.B to the terminal.
  • Msg.B contains part of the equivalent information of Msg.2 and Msg.4 in the traditional four-step random access process, such as the time synchronization information in Msg.2 and the conflict resolution information in Msg.4.
  • the transmission mode of Msg.B is Physical Downlink Control Channel (PDCCH) + Physical Downlink Shared Channel (PDSCH), which is similar to the traditional 4-step random access, where PDSCH may include Information for multiple users.
  • the terminal receives the message of Msg.B on the corresponding physical resource, and extracts the information for the terminal.
  • the terminal can trigger random access in a radio resource control (Radio Resource Control, RRC) connected state and an idle state.
  • RRC Radio Resource Control
  • the UCI information may be channel state information (Channel State Information, CSI), or a hybrid automatic repeat request (Hybrid automatic repeat request, HARQ) feedback for downlink data.
  • CSI Channel State Information
  • HARQ hybrid automatic repeat request
  • the terminal determines that there is UCI information to be sent in the RRC connected state, and the UCI transmission time is the same as the PUSCH transmission time in Msg.A, the UCI is integrated into the PUSCH for transmission.
  • the PUSCH of Msg.A is a common resource. There is a possibility that two terminals use the same PUSCH. In addition, there is no link adaptation mechanism. Therefore, the transmission of PUSCH of Msg.A is more robust and may fail. Furthermore, the integration of UCI into the PUSCH transmitting Msg.A for transmission has the possibility of transmission failure.
  • the present disclosure provides a random access method.
  • this method when it is determined that there is a UCI transmitted simultaneously with the PUSCH of Msg.A, it is determined whether the UCI is allowed to be integrated and transmitted in the PUSCH. If it is allowed to integrate UCI into PUSCH for transmission, then integrate UCI into PUSCH for transmission to reduce the possibility of UCI transmission failure. If it is not allowed to integrate UCI into PUSCH for transmission, then UCI is sent on PUCCH. Since the robustness of PUCCH transmission is lower than that of PUSCH, the possibility of UCI transmission failure can be reduced.
  • Fig. 2 is a flowchart showing a random access method according to an exemplary embodiment. As shown in Fig. 2, the random access method is used in a terminal and includes the following steps.
  • step S11 it is determined that there is UCI transmitted simultaneously with the PUSCH of Msg.A.
  • the terminal first determines whether it is in the RRC connected state, and if it is in the RRC connected state, it further determines whether there is UCI that needs to be transmitted. If there is no UCI that needs to be transmitted, random access can be performed according to the existing random access technology. If there is UCI that needs to be transmitted, it is further judged whether there is a possibility that UCI and PUSCH are sent at the same time. If there is a possibility of simultaneous transmission of UCI and PUSCH, step S12 is executed. If there is no possibility of simultaneous UCI and PUSCH transmission, random access can be performed according to the existing random access technology.
  • step S12 it is determined whether to allow UCI to be integrated and transmitted in the PUSCH.
  • the present disclosure can determine whether to allow UCI to be integrated and transmitted in PUSCH according to the state of the communication link. Among them, when the communication link state satisfies the reliable transmission of UCI, such as transmission in PUCCH, UCI is not allowed to be integrated and transmitted in PUSCH. In the case that the communication link state does not meet the requirements for reliable UCI transmission, the price UCI is allowed to be integrated in PUSCH for transmission.
  • a preset transmission rule of whether to allow UCI to be integrated in PUSCH transmission is predetermined according to the communication link state.
  • the preset transmission rule may be: if the communication link is in an abnormal state, the UCI is allowed to be integrated and sent in the PUSCH. If the communication link is in a normal state, it is not allowed (forbidden) to integrate UCI into PUSCH for transmission. Among them, when the communication link is in an abnormal state, the reliable transmission of UCI cannot be guaranteed, so UCI can be integrated and sent in PUSCH. If the PUSCH transmission is successful, the UCI transmission is successful, which is relatively the transmission success rate of not integrating UCI in PUSCH higher.
  • the abnormal state of the communication link includes one or a combination of the following states: downlink data arrives but uplink out of synchronization state; uplink data arrives but uplink out of sync state; beam connection failure state.
  • the normal state of the communication link includes one or a combination of the following states: the uplink data arrives but there is no PUCCH resource state for transmitting the scheduling request; the uplink data arrives but the scheduling request fails.
  • step S13a if UCI is allowed to be integrated and transmitted in the PUSCH, then UCI is integrated and transmitted in the PUSCH.
  • UCI when UCI is allowed to be integrated in PUSCH for transmission, UCI is integrated in PUSCH to perform a 2-step random access process. Integrating UCI into the PUSCH, and performing a 2-step random access process can use the existing random access method, which will not be repeated here.
  • step S13b if the UCI is not allowed to be integrated and sent in the PUSCH, then UCI is sent on the PUCCH.
  • the terminal before the terminal performs 2-Step random access, the terminal first determines whether the UCI and the Msg.A PUSCH overlap in the transmission time. If the sending time of UCI and Msg.A PUSCH coincides, the terminal will send UCI in PUCCH first. After the UCI transmission is completed, it will give up performing the 2-Step random access process and wait until the UCI transmission is completed before starting 2-Step. Random access. That is, after determining that the UCI transmission on the PUCCH is complete, the terminal transmits Msg.A and receives Msg.B. If the sending time of the PUSCH of UCI and Msg.A do not coincide, the sending of UCI on PUCCH and the process of transmitting Msg.A and receiving Msg.B can be performed respectively.
  • the terminal before the terminal decides to perform 2-Step random access, the terminal first determines whether the UCI transmission and the Msg.A PUSCH overlap. If the sending time of UCI and PUSCH of Msg.A coincides, the terminal first sends the Preamble in Msg.A. Then at the moment when PUSCH should be sent, the terminal gives up sending PUSCH and sends UCI on PUCCH resources. Because the terminal only sends the Preamble but not the PUSCH, the network device receives the Preamble but not the PUSCH.
  • the network device can allocate resources for sending PUSCH again for the terminal, and perform Step2 random access process with the terminal to send Msg.B to the terminal, which can also be understood as falling back to the traditional 4-step random access process.
  • the network device sends Msg.B to the terminal.
  • Information that characterizes PUSCH allocated resources is configured in Msg.B.
  • the terminal receives Msg.B, determines PUSCH allocation resources according to Msg.B, and sends PUSCH on the PUSCH allocation resources.
  • Fig. 3 is a flow chart showing a random access method according to an exemplary embodiment. As shown in Fig. 3, the random access method is used in the process of interaction between a network device and a terminal, and includes the following steps.
  • step S21 the terminal sends the Preamble in Msg.A.
  • the network device receives the Preamble in Msg.A.
  • step S22 the terminal cancels PUSCH transmission at the time when the PUSCH was originally transmitted, and transmits UCI on the PUCCH resource at the time when the PUSCH was originally transmitted.
  • step S23 the network device determines that the random access preamble is received, but the PUSCH of Msg.A is not received.
  • step S24 the network device sends Msg.B, and Msg.B includes information that characterizes the allocated resources of the PUSCH.
  • step S25 the terminal receives Msg.B, determines PUSCH allocation resources according to Msg.B, and transmits PUSCH on the PUSCH allocation resources.
  • Fig. 4 is a flowchart showing a random access method according to an exemplary embodiment. As shown in Fig. 4, the random access method is used in a network device and includes the following steps.
  • step S31 it is determined that the random access preamble is received, but the PUSCH of Msg.A is not received.
  • step S32 Msg.B is sent, and Msg.B includes information that characterizes the allocated resources of the PUSCH.
  • the implementation process of the random access method involved in FIGS. 3 and 4 of the present disclosure is similar to the implementation process of the random access method involved in the foregoing embodiment. Therefore, if the description of the implementation process of the random access method involved in FIG. 3 and FIG. 4 is not sufficiently detailed, please refer to the relevant description of the foregoing embodiment.
  • the random access method when it is determined that there is a UCI sent simultaneously with the PUSCH of Msg.A, it is judged whether to allow the UCI to be integrated and sent in the PUSCH. If it is allowed to integrate UCI into PUSCH for transmission, then integrate UCI into PUSCH for transmission to reduce the possibility of UCI transmission failure. If it is not allowed to integrate UCI into PUSCH for transmission, then UCI is sent on PUCCH. Since the robustness of PUCCH transmission is lower than that of PUSCH, the possibility of UCI transmission failure can be reduced.
  • the embodiments of the present disclosure also provide a random access device.
  • the random access apparatus provided in the embodiments of the present disclosure includes hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 5 is a block diagram showing a random access device 100 according to an exemplary embodiment. 5, the apparatus 100 is applied to a terminal, and includes a processing unit 101 and a sending unit 102.
  • the processing unit 101 is configured to determine that there is a UCI sent simultaneously with the PUSCH of Msg.A.
  • the sending unit 102 is configured to determine whether to allow UCI to be integrated and sent in the PUSCH. If it is allowed to integrate UCI into PUSCH for transmission, then integrate UCI into PUSCH for transmission. If it is not allowed to integrate UCI into PUSCH for transmission, then UCI is sent on the physical uplink control channel PUCCH.
  • the sending unit 102 is configured to determine whether to allow the UCI to be integrated and sent in the PUSCH according to a preset transmission rule.
  • the preset transmission rules are pre-determined according to the communication link state in the following way: if the communication link is in an abnormal state, UCI is allowed to be integrated and sent in PUSCH; if the communication link is in a normal state, UCI is not allowed to be integrated in Sent in PUSCH.
  • the abnormal state of the communication link includes one or a combination of the following states: downlink data arrives but uplink out of synchronization state; uplink data arrives but uplink out of sync state; beam connection failure state.
  • the normal state of the communication link includes one or a combination of the following states: the uplink data arrives but there is no PUCCH resource state for transmitting the scheduling request; the uplink data arrives but the scheduling request fails.
  • the sending unit 102 is further configured to transmit Msg.A after determining that the UCI is sent on the PUCCH is completed.
  • the device 100 in the present disclosure further includes a receiving unit 103, and the receiving unit 103 is configured to receive Msg.B.
  • the sending unit 102 is further configured to send a random access preamble before sending UCI on the PUCCH.
  • the device 100 in the present disclosure further includes a receiving unit 103, which is configured to receive Msg.B after determining that the UCI transmission on the PUCCH is completed.
  • the Msg.B includes information that characterizes the allocated resources of the PUSCH.
  • the sending unit 102 is further configured to determine PUSCH allocation resources according to Msg.B, and send the PUSCH on the PUSCH allocation resources.
  • Fig. 6 is a block diagram showing a random access device 200 according to an exemplary embodiment. 6, the apparatus 200 is applied to a network device, and includes a receiving unit 201 and a sending unit 202.
  • the receiving unit 201 is configured to receive the random access preamble, and determines that the random access preamble is received, but the PUSCH of Msg.A is not received.
  • the sending unit 202 is configured to send Msg.B, and Msg.B includes information that characterizes PUSCH allocated resources.
  • Fig. 8 is a block diagram showing a random access device 800 according to an exemplary embodiment.
  • the device 800 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, And the communication component 716.
  • the processing component 702 generally controls the overall operations of the device 700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 702 may include one or more processors 720 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 702 may include one or more modules to facilitate the interaction between the processing component 702 and other components.
  • the processing component 702 may include a multimedia module to facilitate the interaction between the multimedia component 708 and the processing component 702.
  • the memory 704 is configured to store various types of data to support the operation of the device 700. Examples of such data include instructions for any application or method operating on the device 700, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 704 can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power component 706 provides power to various components of the device 700.
  • the power component 706 may include a power management system, one or more power supplies, and other components associated with the generation, management, and distribution of power for the device 700.
  • the multimedia component 708 includes a screen that provides an output interface between the device 700 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 708 includes a front camera and/or a rear camera. When the device 700 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 710 is configured to output and/or input audio signals.
  • the audio component 710 includes a microphone (MIC), and when the device 700 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 704 or transmitted via the communication component 716.
  • the audio component 710 further includes a speaker for outputting audio signals.
  • the I/O interface 712 provides an interface between the processing component 702 and a peripheral interface module.
  • the above-mentioned peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 714 includes one or more sensors for providing the device 700 with various aspects of status assessment.
  • the sensor component 714 can detect the on/off status of the device 700 and the relative positioning of components, such as the display and keypad of the device 700.
  • the sensor component 714 can also detect the position change of the device 700 or a component of the device 700. , The presence or absence of contact between the user and the device 700, the orientation or acceleration/deceleration of the device 700, and the temperature change of the device 700.
  • the sensor component 714 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 716 is configured to facilitate wired or wireless communication between the apparatus 700 and other devices.
  • the device 700 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 716 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 716 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 700 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • the apparatus 700 is applied to an Internet of Things device, and includes: a processor; and a memory for storing instructions executable by the processor.
  • the processor is configured to execute the aforementioned random access method.
  • non-transitory computer-readable storage medium including instructions, such as the memory 704 including instructions, which may be executed by the processor 720 of the device 700 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • Fig. 8 is a block diagram showing a random access device 800 according to an exemplary embodiment.
  • the apparatus 800 may be provided as a network device, such as a base station.
  • the device 800 includes a processing component 822, which further includes one or more processors, and a memory resource represented by a memory 832, for storing instructions that can be executed by the processing component 822, such as application programs.
  • the application program stored in the memory 832 may include one or more modules each corresponding to a set of instructions.
  • the processing component 822 is configured to execute instructions to perform the aforementioned methods.
  • the device 800 may also include a power component 826 configured to perform power management of the device 800, a wired or wireless network interface 850 configured to connect the device 800 to a network, and an input output (I/O) interface 858.
  • the device 800 can operate based on an operating system stored in the memory 832, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • “plurality” refers to two or more, and other measure words are similar.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • the singular “a”, “said” and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.

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Abstract

本公开是关于一种随机接入方法、装置及存储介质。在该随机接入方法中，确定存在与消息A的物理上行共享信道PUSCH同时发送的上行控制信息；判断是否允许将所述上行控制信息整合在所述PUSCH中发送；若允许将所述上行控制信息整合在所述PUSCH中发送，则将所述上行控制信息整合在所述PUSCH中发送；若不允许将所述上行控制信息整合在所述PUSCH中发送，则在物理上行控制信道PUCCH上发送所述上行控制信息。通过本公开能够降低上行控制信息传输失败的可能性。

Description

随机接入方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种随机接入方法、装置及存储介质。
背景技术
随机接入(Random Access Channel，RACH)技术中引入了一种新的随机接入机制，用以缩短接入的时延。该新的随机接入机制中，第一步传输Msg.A,第二步接收Msg.B，称为两步随机接入(2-step RACH)。
相关技术中，当终端采用2-step RACH机制进行随机接入时，若需要反馈上行控制信息(Uplink Control Information，UCI)，则将该UCI整合到第一步传输Msg.A的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)中进行传输。然而，2-step RACH中，Msg.A的PUSCH是公共资源，存在传输失败的可能性，进而将UCI整合到传输Msg.A的PUSCH中进行传输存在传输失败的可能性。
发明内容
为克服相关技术中存在的问题，本公开提供一种随机接入方法、装置及存储介质，以降低上行控制信息传输失败的可能性。
根据本公开实施例的第一方面，提供一种随机接入方法，应用于终端，包括：
确定存在与消息A的物理上行共享信道PUSCH同时发送的上行控制信息；判断是否允许将所述上行控制信息整合在所述PUSCH中发送；若允许将所述上行控制信息整合在所述PUSCH中发送，则将所述上行控制信息整合在所述PUSCH中发送；若不允许将所述上行控制信息整合在所述PUSCH中发送，则在物理上行控制信道PUCCH上发送所述上行控制信息。
一种实施方式中，判断是否允许将所述上行控制信息整合在所述PUSCH中发送，包括：
依据预设传输规则，判断是否允许将所述上行控制信息整合在所述PUSCH中发送。所述预设传输规则采用如下方式依据通信链路状态预先确定：若通信链路为异常状态，则允许将所述上行控制信息整合在所述PUSCH中发送；若通信链路为正常状态，则不允许将所述上行控制信息整合在所述PUSCH中发送。
其中，通信链路为异常状态包括以下状态之一或组合：下行数据到达但上行失步状态；
上行数据到达但上行失步状态；波束连接失败状态。
其中，通信链路为正常状态包括以下状态之一或组合：上行数据到达但没有用于传输调度请求的PUCCH资源状态；上行数据到达但调度请求失败状态。
另一种实施方式中，本公开涉及的随机接入方法还包括：
在确定所述上行控制信息在所述PUCCH上发送完成之后，传输消息A并接收消息B。
又一种实施方式中，本公开涉及的随机接入方法还包括：
在PUCCH上发送所述上行控制信息之前发送随机接入前导，并在确定所述上行控制信息在所述PUCCH上发送完成之后接收消息B，所述消息B中包括有表征PUSCH分配资源的信息；依据所述消息B确定PUSCH分配资源，在所述PUSCH分配资源上发送所述PUSCH。
根据本公开实施例的第二方面，提供一种随机接入方法，应用于网络设备，包括：
确定接收到随机接入前导，但未接收到消息A的物理上行共享信道PUSCH；发送消息B，所述消息B中包括有表征PUSCH分配资源的信息。
根据本公开实施例的第三方面，提供一种随机接入装置，应用于终端，包括：
处理单元，被配置为确定存在与消息A的物理上行共享信道PUSCH同时发送的上行控制信息；发送单元，被配置为判断是否允许将所述上行控制信息整合在所述PUSCH中发送；若允许将所述上行控制信息整合在所述PUSCH中发送，则将所述上行控制信息整合在所述PUSCH中发送；若不允许将所述上行控制信息整合在所述PUSCH中发送，则在物理上行控制信道PUCCH上发送所述上行控制信息。
一种实施方式中，所述发送单元被配置为采用如下方式判断是否允许将所述上行控制信息整合在所述PUSCH中发送：
依据预设传输规则，判断是否允许将所述上行控制信息整合在所述PUSCH中发送。所述预设传输规则采用如下方式依据通信链路状态预先确定：若通信链路为异常状态，则允许将所述上行控制信息整合在所述PUSCH中发送；若通信链路为正常状态，则不允许将所述上行控制信息整合在所述PUSCH中发送。
其中，通信链路为异常状态包括以下状态之一或组合：下行数据到达但上行失步状态；上行数据到达但上行失步状态；波束连接失败状态。
其中，通信链路为正常状态包括以下状态之一或组合：上行数据到达但没有用于传输调度请求的PUCCH资源状态；上行数据到达但调度请求失败状态。
另一种实施方式中，所述发送单元还被配置为：在确定所述上行控制信息在所述 PUCCH上发送完成之后，传输消息A。所述装置还包括接收单元，所述接收单元被配置为：接收消息B。
又一种实施方式中，所述发送单元还被配置为：在PUCCH上发送所述上行控制信息之前发送随机接入前导。所述装置还包括接收单元，所述接收单元被配置为：在确定所述上行控制信息在所述PUCCH上发送完成之后接收消息B，所述消息B中包括有表征PUSCH分配资源的信息。所述发送单元还被配置为：依据所述消息B确定PUSCH分配资源，在所述PUSCH分配资源上发送所述PUSCH。
根据本公开实施例的第四方面，提供一种随机接入装置，应用于网络设备，包括：
接收单元，被配置为确定接收到随机接入前导，但未接收到消息A的物理上行共享信道PUSCH；发送单元，被配置为发送消息B，所述消息B中包括有表征PUSCH分配资源的信息。
根据本公开实施例的第五方面，提供一种随机接入装置，其特征在于，应用于终端，包括：处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行上述第一方面或者第一方面任意一种实施方式所述的随机接入方法。
根据本公开实施例的第六方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行上述第一方面或者第一方面任意一种实施方式所述的随机接入方法。
根据本公开实施例的第七方面，提供一种随机接入装置，应用于网络设备，包括：
处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行上述第二方面所述的随机接入方法。
根据本公开实施例的第八方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行上述第二方面所述的随机接入方法。
本公开的实施例提供的技术方案可以包括以下有益效果：确定存在与消息A的PUSCH同时发送的上行控制信息时，判断是否允许将上行控制信息整合在PUSCH中发送。若允许将上行控制信息整合在PUSCH中发送，将上行控制信息整合在PUSCH中发送。若不允许将上行控制信息整合在PUSCH中发送，则在PUCCH上发送上行控制信息。能够降低上行控制信息传输失败的可能性。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据部分示例性实施例示出的一种无线通信系统示意图。
图2是根据一示例性实施例示出的一种随机接入方法的流程图。
图3是根据一示例性实施例示出的另一种随机接入方法的流程图。
图4是根据一示例性实施例示出的又一种随机接入方法的流程图。
图5是根据一示例性实施例示出的一种随机接入装置的框图。
图6是根据一示例性实施例示出的一种随机接入装置的框图。
图7是根据一示例性实施例示出的一种装置的框图。
图8是根据一示例性实施例示出的一种装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开提供一种随机接入方法，该方法可以应用于图1所示的无线通信系统中，如图1所示，终端通过诸如基站等网络设备接入到网络中，网络设备与核心网完成数据的回传和前向传递，以进行各种通信服务。
可以理解的是，无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络或系统。本公开中网络可包括无线接入网(Radio Access Network，RAN)以及核心网(Core Network，CN)。网络中包括有网络设备，该网络设备例如可以是无线接 入网节点、核心网设备等。其中，无线接入网节点也可以称为基站。网络可以通过网络设备为终端提供网络服务，不同的运营商可以为终端提供不同的网络服务，也可以理解为不同的运营商对应有不同的运营商网络。
终端，也可以称为用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。
终端在准备接入网络时，需要完成随机接入。相关技术中引入2-step RACH机制进行随机接入。图2是根据一示例性实施例示出的一种2-step RACH随机接入方法流程图。参阅图2所示，终端在进行随机接入时首先会获取同步广播块，用以获得同步和系统消息。然后在所获取的同步广播块所对应的物理随机接入信道(Physical random access channel，PRACH)中发送随机接入前导(Preamble)。在2-step RACH中，Step 1中传输消息A(Msg.A)，即：终端选择合适的Preamble在PRACH资源上进行发送，同时网络设备会在对应的PRACH上进行Preamble的检测。终端在对应的PUSCH资源上传输载荷数据(payload)信息，其中payload的信息包括传统4步随机接入中Msg.3的等效信息，比如用户标识(Identity，ID)，还可以包含一部分用户数据。当网络设备检测到preamble时，会在对应的PUSCH上进行数据的接收。Step 2中传输消息B(Msg.B)，即：当网络设备成功接收到Preamble或者preamble和数据时，给终端发送Msg.B。Msg.B中包含了传统四步随机接入过程中Msg.2和Msg.4的部分等效信息，比如包含Msg.2中的时间同步信息，Msg.4中的冲突解决信息等。Msg.B的传输方式为物理下行控制信道(Physical Downlink Control Channel，PDCCH)+物理下行共享信道(Physical Downlink Shared Channel，PDSCH)的方式，与传统的4步随机接入类似，其中PDSCH中可能包含了多个用户的信息。终端在对应的物理资源上接收Msg.B的消息，并提取出针对终端的信息。
其中，终端可以在无线资源控制(Radio Resource Control，RRC)连接态和空闲态触发随机接入。终端在RRC连接态下，可能会向网络设备反馈UCI信息。UCI信息可以是信道状态信息(Channel State Information，CSI)，或者针对下行数据的混合自动重传请求(Hybrid automatic repeat request，HARQ)反馈等。相关技术中，终端若确定在RRC连接态下有UCI信息需要发送，并且UCI的发送时间和Msg.A中PUSCH的发送时间相 同，则将UCI整合在PUSCH中传输。Msg.A的PUSCH是公共资源，存在两个终端使用相同PUSCH的可能性，另外也没有链路自适应机制，故Msg.A的PUSCH传输的鲁棒性较高，存在传输失败的可能性，进而将UCI整合到传输Msg.A的PUSCH中进行传输存在传输失败的可能性。
有鉴于此，本公开提供一种随机接入方法，在该方法中，确定存在与Msg.A的PUSCH同时发送的UCI时，判断是否允许将UCI整合在PUSCH中发送。若允许将UCI整合在PUSCH中发送，则将UCI整合在PUSCH中发送，降低UCI传输失败的可能性。若不允许将UCI整合在PUSCH中发送，则在PUCCH上发送UCI。由于PUCCH传输的鲁棒性相对PUSCH的鲁棒性较低，进而可降低UCI传输失败的可能性。
图2是根据一示例性实施例示出的一种随机接入方法的流程图，如图2所示，随机接入方法用于终端中，包括以下步骤。
在步骤S11中，确定存在与Msg.A的PUSCH同时发送的UCI。
本公开中，终端首先确定是否处于RRC连接态，若处于RRC连接态，则进一步确定是否存在需要传输的UCI。若不存在需要传输的UCI，则可按照已有的随机接入技术进行随机接入。若存在需要传输的UCI，则进一步判断是否存在UCI与PUSCH同时发送的可能性。若存在UCI与PUSCH同时发送的可能性，则执行步骤S12。若不存在UCI与PUSCH同时发送的可能性，则可按照已有的随机接入技术进行随机接入。
在步骤S12中，判断是否允许将UCI整合在PUSCH中发送。
本公开可以根据通信链路状态，判断是否允许将UCI整合在PUSCH中发送。其中，在通信链路状态满足使UCI可靠传输的情况下，例如在PUCCH中传输，则不允许将UCI整合在PUSCH中发送。在通信链路状态不满足使UCI可靠传输的情况下，则允许价格UCI整合在PUSCH中传输。
本公开一实施例中，依据通信链路状态预先确定是否允许将UCI整合在PUSCH中传输的预设传输规则。预设传输规则可以是：若通信链路为异常状态，则允许将UCI整合在所述PUSCH中发送。若通信链路为正常状态，则不允许(禁止)将UCI整合在PUSCH中发送。其中，通信链路为异常状态时，不能保证UCI的可靠传输，故可将UCI整合在PUSCH中发送，若PUSCH传输成功，则该UCI传输成功，相对不将UCI整合在PUSCH中的传输成功率更高。若通信链路为正常状态，能保证UCI的可靠传输，可此时若将UCI整合在PUSCH中，存在传输失败的可能性，故此种情况下无需将UCI整合在PUSCH中。
本公开中，通信链路为异常状态包括以下状态之一或组合：下行数据到达但上行失步 状态；上行数据到达但上行失步状态；波束连接失败状态。通信链路为正常状态包括以下状态之一或组合：上行数据到达但没有用于传输调度请求的PUCCH资源状态；上行数据到达但调度请求失败状态。
本公开若存在预设传输规则，则可依据该预设传输规则判断是否允许将UCI整合在PUSCH中发送。
在步骤S13a中，若允许将UCI整合在PUSCH中发送，则将UCI整合在PUSCH中发送。
本公开中，在允许将UCI整合在PUSCH中发送的情况下，将UCI整合在PUSCH中，进行2-step随机接入过程。将UCI整合在PUSCH中，进行2-step随机接入过程可采用目前已有的随机接入方法，在此不再赘述。
在步骤S13b中，若不允许将UCI整合在PUSCH中发送，则在PUCCH上发送UCI。
本公开中在不允许将UCI整合在PUSCH中发送的情况下，在传输鲁棒性较低的PUCCH上发送UCI，可提高UCI传输的成功率。
本公开以下将结合实际应用对不允许将UCI整合在PUSCH中发送的情况下，实现随机接入的过程进行说明。
一种实施方式中，本公开中当终端在执行2-Step随机接入之前，终端首先判断UCI是否和Msg.A的PUSCH在发送时间上发生重合。如果UCI和Msg.A的PUSCH的发送时间发生重合，则终端优先在PUCCH中发送UCI，待UCI传输完毕之后，放弃执行2-Step随机接入过程，等待UCI传输完毕后才开始进行2-Step随机接入。即，终端在确定UCI在PUCCH上发送完成之后，传输Msg.A并接收Msg.B。如果UCI和Msg.A的PUSCH的发送时间不重合，则可分别进行UCI在PUCCH上的发送，以及传输Msg.A并接收Msg.B的过程。
另一种实施方式中，当终端在决定做2-Step随机接入前，终端首先判断UCI的传输是否和Msg.A的PUSCH发生重合。如果UCI和Msg.A的PUSCH的发送时间发生重合，则终端先发送Msg.A中的Preamble。然后在应该发送PUSCH的时刻，终端放弃发送PUSCH，而在PUCCH资源上发送UCI。由于终端只发送了Preamble未发送PUSCH，使得网络设备接收到Preamble，没有收到PUSCH。此种情况下，网络设备可以为终端再次分配发送PUSCH的资源，并与终端进行Step2的随机接入过程向终端发送Msg.B，也可以理解为是回退到传统4步随机接入过程。网络设备向终端发送Msg.B。在Msg.B中配置表征PUSCH分配资源的信息。终端接收Msg.B，依据Msg.B确定PUSCH分配资源， 在PUSCH分配资源上发送PUSCH。
图3是根据一示例性实施例示出的一种随机接入方法的流程图，如图3所示，随机接入方法用于网络设备与终端交互的过程中，包括以下步骤。
在步骤S21中，终端发送Msg.A中的Preamble。网络设备接收Msg.A中的Preamble。
在步骤S22中，终端在原本发送PUSCH的时刻取消发送PUSCH，并在原本发送PUSCH的时刻在PUCCH资源上发送UCI。
在步骤S23中，网络设备确定接收到随机接入前导，但未接收到Msg.A的PUSCH。
在步骤S24中，网络设备发送Msg.B，在Msg.B中包括有表征PUSCH分配资源的信息。
在步骤S25中，终端接收Msg.B，依据Msg.B确定PUSCH分配资源，在PUSCH分配资源上发送PUSCH。
图4是根据一示例性实施例示出的一种随机接入方法的流程图，如图4所示，随机接入方法用于网络设备中，包括以下步骤。
在步骤S31中，确定接收到随机接入前导，但未接收到Msg.A的PUSCH。
在步骤S32中，发送Msg.B，在Msg.B中包括有表征PUSCH分配资源的信息。
对于本公开图3和图4所涉及的随机接入方法实施过程，与上述实施例涉及的随机接入方法实施过程类似。故对于图3和图4所涉及的随机接入方法实施过程描述不够详尽的地方，可参阅上述实施例相关描述。
本公开提供的随机接入方法，确定存在与Msg.A的PUSCH同时发送的UCI时，判断是否允许将UCI整合在PUSCH中发送。若允许将UCI整合在PUSCH中发送，则将UCI整合在PUSCH中发送，降低UCI传输失败的可能性。若不允许将UCI整合在PUSCH中发送，则在PUCCH上发送UCI。由于PUCCH传输的鲁棒性相对PUSCH的鲁棒性较低，进而可降低UCI传输失败的可能性。
基于相同的构思，本公开实施例还提供一种随机接入装置。
可以理解的是，本公开实施例提供的随机接入装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图5是根据一示例性实施例示出的一种随机接入装置100框图。参照图5，该装置100应用于终端，包括处理单元101和发送单元102。
处理单元101，被配置为确定存在与Msg.A的PUSCH同时发送的UCI。发送单元102，被配置为判断是否允许将UCI整合在PUSCH中发送。若允许将UCI整合在PUSCH中发送，则将UCI整合在PUSCH中发送。若不允许将UCI整合在PUSCH中发送，则在物理上行控制信道PUCCH上发送UCI。
一种实施方式中，发送单元102被配置为依据预设传输规则，判断是否允许将UCI整合在PUSCH中发送。
其中，预设传输规则采用如下方式依据通信链路状态预先确定：若通信链路为异常状态，则允许将UCI整合在PUSCH中发送；若通信链路为正常状态，则不允许将UCI整合在PUSCH中发送。
其中，通信链路为异常状态包括以下状态之一或组合：下行数据到达但上行失步状态；上行数据到达但上行失步状态；波束连接失败状态。通信链路为正常状态包括以下状态之一或组合：上行数据到达但没有用于传输调度请求的PUCCH资源状态；上行数据到达但调度请求失败状态。
另一种实施方式中，发送单元102还被配置为：在确定UCI在PUCCH上发送完成之后，传输Msg.A。本公开中装置100还包括接收单元103，接收单元103被配置为：接收Msg.B。
又一种实施方式中，发送单元102还被配置为：在PUCCH上发送UCI之前发送随机接入前导。本公开中装置100还包括接收单元103，接收单元103被配置为：在确定UCI在PUCCH上发送完成之后接收Msg.B，Msg.B中包括有表征PUSCH分配资源的信息。发送单元102还被配置为：依据Msg.B确定PUSCH分配资源，在PUSCH分配资源上发送PUSCH。
图6是根据一示例性实施例示出的一种随机接入装置200框图。参照图6，该装置200应用于网络设备，包括接收单元201和发送单元202。
接收单元201，被配置为接收随机接入前导，并确定接收到随机接入前导，但未接收到Msg.A的PUSCH。发送单元202，被配置为发送Msg.B，Msg.B中包括有表征PUSCH分配资源的信息。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图8是根据一示例性实施例示出的一种随机接入装置800的框图。例如，装置800可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图7，装置700可以包括以下一个或多个组件：处理组件702，存储器704，电力组件706，多媒体组件708，音频组件710，输入/输出(I/O)的接口712，传感器组件714，以及通信组件716。
处理组件702通常控制装置700的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件702可以包括一个或多个处理器720来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件702可以包括一个或多个模块，便于处理组件702和其他组件之间的交互。例如，处理组件702可以包括多媒体模块，以方便多媒体组件708和处理组件702之间的交互。
存储器704被配置为存储各种类型的数据以支持在设备700的操作。这些数据的示例包括用于在装置700上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器704可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件706为装置700的各种组件提供电力。电力组件706可以包括电源管理系统，一个或多个电源，及其他与为装置700生成、管理和分配电力相关联的组件。
多媒体组件708包括在所述装置700和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件708包括一个前置摄像头和/或后置摄像头。当设备700处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件710被配置为输出和/或输入音频信号。例如，音频组件710包括一个麦克风(MIC)，当装置700处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器704或经由 通信组件716发送。在一些实施例中，音频组件710还包括一个扬声器，用于输出音频信号。
I/O接口712为处理组件702和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件714包括一个或多个传感器，用于为装置700提供各个方面的状态评估。例如，传感器组件714可以检测到设备700的打开/关闭状态，组件的相对定位，例如所述组件为装置700的显示器和小键盘，传感器组件714还可以检测装置700或装置700一个组件的位置改变，用户与装置700接触的存在或不存在，装置700方位或加速/减速和装置700的温度变化。传感器组件714可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件714还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件714还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件716被配置为便于装置700和其他设备之间有线或无线方式的通信。装置700可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件716经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件716还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置700可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，装置700应用于物联网设备，包括：处理器；用于存储处理器可执行指令的存储器。其中，所述处理器被配置为执行上述随机接入方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器704，上述指令可由装置700的处理器720执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图8是根据一示例性实施例示出的一种随机接入装置800的框图。例如，装置800 可以被提供为一网络设备，例如基站。参照图8，装置800包括处理组件822，其进一步包括一个或多个处理器，以及由存储器832所代表的存储器资源，用于存储可由处理组件822的执行的指令，例如应用程序。存储器832中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件822被配置为执行指令，以执行上述方法。
装置800还可以包括一个电源组件826被配置为执行装置800的电源管理，一个有线或无线网络接口850被配置为将装置800连接到网络，和一个输入输出(I/O)接口858。装置800可以操作基于存储在存储器832的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
可以理解的是，本公开中““网络”和“系统”有时会交替使用，但本领域的技术人员可以理解其含义。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (18)

  1. 一种随机接入方法，其特征在于，应用于终端，包括：
    确定存在与消息A的物理上行共享信道PUSCH同时发送的上行控制信息；
    判断是否允许将所述上行控制信息整合在所述PUSCH中发送；
    若允许将所述上行控制信息整合在所述PUSCH中发送，则将所述上行控制信息整合在所述PUSCH中发送；
    若不允许将所述上行控制信息整合在所述PUSCH中发送，则在物理上行控制信道PUCCH上发送所述上行控制信息。
  2. 根据权利要求1所述的随机接入方法，其特征在于，判断是否允许将所述上行控制信息整合在所述PUSCH中发送，包括：
    依据预设传输规则，判断是否允许将所述上行控制信息整合在所述PUSCH中发送；
    所述预设传输规则采用如下方式依据通信链路状态预先确定：
    若通信链路为异常状态，则允许将所述上行控制信息整合在所述PUSCH中发送；
    若通信链路为正常状态，则不允许将所述上行控制信息整合在所述PUSCH中发送。
  3. 根据权利要求2所述的随机接入方法，其特征在于，通信链路为异常状态包括以下状态之一或组合：
    下行数据到达但上行失步状态；
    上行数据到达但上行失步状态；
    波束连接失败状态。
  4. 根据权利要求2或3所述的随机接入方法，其特征在于，通信链路为正常状态包括以下状态之一或组合：
    上行数据到达但没有用于传输调度请求的PUCCH资源状态；
    上行数据到达但调度请求失败状态。
  5. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    在确定所述上行控制信息在所述PUCCH上发送完成之后，传输消息A并接收消息B。
  6. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    在PUCCH上发送所述上行控制信息之前发送随机接入前导，并在确定所述上行控制信息在所述PUCCH上发送完成之后接收消息B，所述消息B中包括有表征PUSCH分配资源的信息；
    依据所述消息B确定PUSCH分配资源，在所述PUSCH分配资源上发送所述PUSCH。
  7. 一种随机接入方法，其特征在于，应用于网络设备，包括：
    确定接收到随机接入前导，但未接收到消息A的物理上行共享信道PUSCH；
    发送消息B，所述消息B中包括有表征PUSCH分配资源的信息。
  8. 一种随机接入装置，其特征在于，应用于终端，包括：
    处理单元，被配置为确定存在与消息A的物理上行共享信道PUSCH同时发送的上行控制信息；
    发送单元，被配置为判断是否允许将所述上行控制信息整合在所述PUSCH中发送；若允许将所述上行控制信息整合在所述PUSCH中发送，则将所述上行控制信息整合在所述PUSCH中发送；若不允许将所述上行控制信息整合在所述PUSCH中发送，则在物理上行控制信道PUCCH上发送所述上行控制信息。
  9. 根据权利要求8所述的随机接入装置，其特征在于，所述发送单元被配置为采用如下方式判断是否允许将所述上行控制信息整合在所述PUSCH中发送：
    依据预设传输规则，判断是否允许将所述上行控制信息整合在所述PUSCH中发送；
    所述预设传输规则采用如下方式依据通信链路状态预先确定：
    若通信链路为异常状态，则允许将所述上行控制信息整合在所述PUSCH中发送；
    若通信链路为正常状态，则不允许将所述上行控制信息整合在所述PUSCH中发送。
  10. 根据权利要求9所述的随机接入装置，其特征在于，通信链路为异常状态包括以下状态之一或组合：
    下行数据到达但上行失步状态；
    上行数据到达但上行失步状态；
    波束连接失败状态。
  11. 根据权利要求9或10所述的随机接入装置，其特征在于，通信链路为正常状态包括以下状态之一或组合：
    上行数据到达但没有用于传输调度请求的PUCCH资源状态；
    上行数据到达但调度请求失败状态。
  12. 根据权利要求8所述的随机接入装置，其特征在于，所述发送单元还被配置为：
    在确定所述上行控制信息在所述PUCCH上发送完成之后，传输消息A；
    所述装置还包括接收单元，所述接收单元被配置为：接收消息B。
  13. 根据权利要求8所述的随机接入装置，其特征在于，所述发送单元还被配置为：
    在PUCCH上发送所述上行控制信息之前发送随机接入前导；
    所述装置还包括接收单元，所述接收单元被配置为：在确定所述上行控制信息在所述PUCCH上发送完成之后接收消息B，所述消息B中包括有表征PUSCH分配资源的信息；
    所述发送单元还被配置为：依据所述消息B确定PUSCH分配资源，在所述PUSCH分配资源上发送所述PUSCH。
  14. 一种随机接入装置，其特征在于，应用于网络设备，包括：
    接收单元，被配置为确定接收到随机接入前导，但未接收到消息A的物理上行共享信道PUSCH；
    发送单元，被配置为发送消息B，所述消息B中包括有表征PUSCH分配资源的信息。
  15. 一种随机接入装置，其特征在于，应用于终端，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至6中任意一项所述的随机接入方法。
  16. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行权利要求1至6中任意一项所述的随机接入方法。
  17. 一种随机接入装置，其特征在于，应用于网络设备，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求7所述的随机接入方法。
  18. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行权利要求7所述的随机接入方法。
PCT/CN2019/097781 2019-07-25 2019-07-25 随机接入方法、装置及存储介质 WO2021012279A1 (zh)

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