WO2022017526A1 - 重复传输方法、装置及用户设备 - Google Patents

重复传输方法、装置及用户设备 Download PDF

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Publication number
WO2022017526A1
WO2022017526A1 PCT/CN2021/108290 CN2021108290W WO2022017526A1 WO 2022017526 A1 WO2022017526 A1 WO 2022017526A1 CN 2021108290 W CN2021108290 W CN 2021108290W WO 2022017526 A1 WO2022017526 A1 WO 2022017526A1
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message
msg
random access
transmission
sent
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PCT/CN2021/108290
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English (en)
French (fr)
Inventor
吴凯
李娜
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维沃移动通信有限公司
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Publication of WO2022017526A1 publication Critical patent/WO2022017526A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • 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

Definitions

  • the present application belongs to the field of communication technologies, and in particular relates to a method, apparatus and user equipment for repeated transmission.
  • a user equipment when a user equipment (UE) performs random access (for example, two-step random access (2-step RACH) or four-step random access (4-step RACH)), it can send the corresponding message (such as message A (ie MSG-A) or message 1 (ie MSG-1)), so that the network device can send a corresponding random access response (RACH access response, RAR) (such as message B (ie MSG-1)) to the UE -B) or message 2 (ie MSG-2)) to implement the corresponding random access procedure.
  • RACH access response RAR
  • MSG-A In the random access process, due to some reasons (such as limited network coverage or limited UE capability), there will be a problem of poor data transmission performance, which leads to a large random access delay. Therefore, MSG-A Or repeated transmission of MSG-1 to ensure the transmission performance of these data.
  • MSG-A or MSG-1 there is no clear scheme for the opening timing of the time window of MSG-B or MSG-2, that is, the receiving timing of MSG-B or MSG-2 is not Since it is unclear, there is a problem that the UE cannot know the reception timing of MSG-B or MSG-2.
  • the purpose of the embodiments of the present application is to provide a repeated transmission method, apparatus, and user equipment, which can solve the problem that the UE cannot know the reception timing of MSG-B or MSG-2.
  • an embodiment of the present application provides a method for repeated transmission.
  • the method for repeated transmission includes: after the UE completes N repeated transmissions of the first message, opening a time window for receiving the second message; wherein the first message is The message sent by the UE in the random access process, the second message is the message sent by the network device in the random access process, and N is a positive integer.
  • an embodiment of the present application provides a repeated transmission device, where the repeated transmission device includes an opening module.
  • the opening module is configured to open a time window for receiving the second message after completing N repeated transmissions of the first message; wherein the first message is a message sent by the UE during the random access process, and the second message is the network
  • N is a positive integer.
  • an embodiment of the present application provides a UE, the UE includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the repeated transmission method described in the first aspect when executed.
  • an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the repeated transmission method according to the first aspect is implemented A step of.
  • an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, and implement the first aspect The repeated transmission method.
  • the UE after the UE completes N repeated transmissions of the first message, the UE opens a time window for receiving the second message. Since the UE performs repeated transmission of the first message in the random access process, the UE can open a time window for the second message after completing N repeated transmissions to receive the second message sent by the network device, that is, the second message.
  • the reception timing of the message is after N repeated transmissions are completed, so the problem that the UE cannot know the reception timing of the second message can be avoided, thereby ensuring the validity and accuracy of the UE receiving the second message.
  • FIG. 1 is one of the schematic diagrams of a repeated transmission method provided by an embodiment of the present application
  • FIG. 2 is the second schematic diagram of a repeated transmission method provided by an embodiment of the present application.
  • FIG. 3 is a third schematic diagram of a repeated transmission method provided by an embodiment of the present application.
  • FIG. 4 is one of the schematic structural diagrams of a repeated transmission device provided by an embodiment of the present application.
  • FIG. 5 is a second schematic structural diagram of a repeating transmission device provided by an embodiment of the present application.
  • FIG. 6 is one of the schematic diagrams of the hardware structure of a UE provided by an embodiment of the present application.
  • FIG. 7 is a second schematic diagram of a hardware structure of a UE provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguished by “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • the UE In 4-step RACH, the UE first sends MSG-1 to the network device, and the MSG-1 contains a preamble; after the network device detects the preamble, it can Send MSG-2 to the UE, including the random access response (RAR) message corresponding to the preamble; after receiving MSG-2, the UE sends message 3 (ie MSG-3) to the UE according to the instruction of the RAR; the network device receives After MSG-3, MSG-4 can be sent to UE, and the MSG-4 contains contention resolution ID; after UE receives MSG-4, it completes four-step random access.
  • the MSG-2 used to transmit RAR includes uplink scheduling information (UL grant), and the UL grant can be used to schedule MSG-3, and includes the scheduling information indication related to the transmission of MSG-3.
  • UL grant uplink scheduling information
  • the UL grant can be used to schedule MSG-3, and includes the scheduling information indication related to the transmission of MSG-3.
  • Two-step random access process (2-step RACH): In the NR system, in addition to supporting the 4-step RACH process, it also supports the 2-step RACH process.
  • the UE can first send the MSG-A, which consists of a physical random access preamble (PRACH preamble) and a physical uplink shared channel (PUSCH).
  • the transmission information of the PUSCH may include UE-ID information.
  • the network device After receiving the MSG-A sent by the UE, the network device may send the MSG-B to the UE.
  • the UE detects the UE-ID sent in the MSG-A it considers that the contention is successfully resolved, and feeds back the MSG-B hybrid automatic repeat request acknowledgement to the network device. , HARQ-ACK).
  • LTE long term evolution
  • LTE-Advanced LTE-A
  • technologies described in the embodiments of the present application are not limited to long term evolution (LTE)/LTE evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (code division multiple access, CDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency division multiple access, OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems.
  • code Division Multiple Access code Division Multiple Access
  • time division multiple access time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th Generation (6G) communication systems .
  • 6G 6th Generation
  • the UE in this embodiment of the present application may also be referred to as a terminal device, and the UE may be a mobile phone, a tablet computer (tablet personal computer), a laptop computer (laptop computer) or a notebook computer, a personal digital assistant (personal digital assistant, PDA) ), PDA, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device (wearable device) or vehicle-mounted device (VUE), pedestrian terminal ( PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the UE.
  • the network device in this embodiment of the present application may be a base station or a core network, where the base station may be referred to as a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver machine, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi node, transmitting receiving point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary.
  • the example only takes the base station in the NR system as an example, but the specific type of the base station is not limited.
  • FIG. 1 shows a flowchart of a method for repeated transmission provided by an embodiment of the present application, and the method can be applied to a UE.
  • the repeated transmission method provided by this embodiment of the present application may include the following steps 201 and 202 .
  • Step 201 The UE performs repeated transmission of the first message.
  • the UE may perform repeated transmission of the first message according to the configuration information of the network device.
  • the foregoing configuration information may include the number of repeated transmissions of the first message (ie, the maximum number of transmissions).
  • the above-mentioned first message may be MSG-A sent by the UE in the two-step random access process; or, the above-mentioned first message may be sent by the UE in the four-step random access process MSG-1; or, the above-mentioned first message may be MSG-3 sent by the UE in the four-step random access procedure.
  • Step 202 After completing N repeated transmissions of the first message, the UE opens a time window for receiving the second message.
  • the above-mentioned first message is a message sent by the UE during the random access process
  • the second message is a message sent by the network device during the random access process
  • N is a positive integer
  • N may be configured by a network device, or predefined, or agreed in a protocol.
  • the above step 202 can be understood as: the network device configures the UE to open the time window for receiving the second message.
  • the condition is: after the UE completes N repeated transmissions of the first message .
  • N may be the number of nominal (Nominal) transmissions, or the number of actual (actual) transmissions.
  • the number of nominal repetitions may be understood as the number of repetitions configured by the network device, and the number of actual transmissions may be understood as the number of actual transmissions by the UE.
  • the above-mentioned actual transmission times may be applicable to the PUSCH in the MSG-A.
  • N is less than or equal to a preset number of times, where the preset number of times is the maximum number of transmissions of the first message configured by the network device (ie, M in the following embodiments).
  • the preset number of times may be understood as the maximum number of transmission times of MSG3 configured or scheduled by the network device.
  • the above-mentioned first message is MSG-A sent by the UE in the two-step random access process
  • the second message is MSG-B sent by the network device in the two-step random access process.
  • the above-mentioned first message is MSG-1 sent by the UE in the four-step random access process
  • the second message is MSG-2 sent by the network device in the four-step random access process.
  • the first message is MSG-3 sent by the UE in the four-step random access process
  • the second message is MSG-4 sent by the network device in the four-step random access process.
  • the Nth transmission of the first message by the UE is: the Nth transmission of the preamble Sequence or Nth transmission of the uplink data channel.
  • the above-mentioned uplink data channel may be PUSCH.
  • the above-mentioned second message may be a random access response (that is, RAR) sent by the network device in the random access process, and the RAR may be MSG-2 in the four-step random access process. , or MSG-B in the two-step random access procedure.
  • RAR random access response
  • the RAR includes at least one of the following: a random access radio network temporary identifier (RA-RNTI) scrambled PDCCH and PDSCH scheduled by this PDCCH.
  • RA-RNTI random access radio network temporary identifier
  • the RAR includes at least one of the following: a PDCCH scrambled by MSG-B-RNTI and a PDSCH scheduled by the PDCCH.
  • the second message includes contention resolution information.
  • the time window for the UE to start receiving the second message can be understood as: the UE starts a timer for the second message (for example, RAR-Timer (for example, MSG-2-Timer or MSG-B-Timer) or contention resolution (contention) resolution)-Timer), or open the corresponding window (such as RAR window (such as MSG-2 window or MSG-B window) or contention resolution window) to receive the response message from the network device.
  • a timer for the second message for example, RAR-Timer (for example, MSG-2-Timer or MSG-B-Timer) or contention resolution (contention) resolution)-Timer
  • RAR-Timer for example, MSG-2-Timer or MSG-B-Timer
  • contention resolution contention resolution
  • contention resolution window contention resolution window
  • the starting position of the above-mentioned time window is: the UE monitors the first symbol of the earliest control resource set of the common search space set of the downlink control channel of the preset type, and the starting position of the time window is: The start symbol is the symbol after the target symbol.
  • the target symbol is: the last symbol of the random access opportunity (RACH occasion, RO) where the UE transmits the first message for the Nth time, or the transmission opportunity (PUSCH occasion, PO) where the UE transmits the uplink data channel for the Nth time. last symbol.
  • the start symbol of the above-mentioned time window may be a symbol after at least one symbol after the target symbol.
  • the above-mentioned RAR window starts from the first symbol of the earliest CORESET of the Type-1 PDCCH CSS set that the UE configured on the network device monitors, and the UE sends the Nth MSG-1 or MSG-A where the UE is located. After at least one symbol after the last symbol of RO.
  • the above RAR window starts from the first symbol of the earliest CORESET of the Type-1 PDCCH CSS set monitored by the UE configured by the network device, and after the UE sends the last symbol of the PO where the Nth uplink data channel is located after at least one symbol of .
  • MSG-1 PRACH
  • MSG-A PRACH and PUSCH
  • the network device configures or instructs to perform repeated PRACH transmissions M times (that is, the maximum number of transmissions), and the UE can open the RAR window (that is, the MSG-2 window or the MSG-B window) after the Nth transmission.
  • the RAR window that is, the MSG-2 window or the MSG-B window
  • 1 ⁇ N ⁇ M 1 ⁇ N ⁇ M.
  • the corresponding window may be opened after the Nth premable transmission, or during the Nth PUSCH transmission.
  • a response message eg, MSG-2 or MSG-B
  • N may be configured or indicated by the network device. N may or may not include the UE due to abandoning PRACH transmission. If no actual transmission is included, regardless of whether actual transmission is performed, the UE counts the transmission opportunities (also called transmission opportunities) corresponding to N times of transmission, and the UE opens the window after the PRACH occasion of N times of transmission. Of course, at this time The UE starts the window after at least one actual transmission. Or if it is not included, the UE does not count the above-noted transmission opportunities, and opens the corresponding window after completing N actual transmissions.
  • transmission opportunities also called transmission opportunities
  • the value of N or the value of M may be indicated in the PDCCH.
  • the value of N corresponding to MSG-3 may be indicated in the PDCCH scrambled by RAR or TC-RNTI.
  • the RAR window starts with the first symbol of the earliest control resource set (CORESET) of the PDCCH common search space set (common search space, CSS set) of the preset type (such as Type-1) when the network device configures the UE to monitor the UE. After sending the last symbol or at least one symbol of the RO where MSG-1 or MSG-A is located for the Nth time.
  • CORESET control resource set
  • CSS set common search space set
  • the UE uses the last valid PUSCH occasion as the reference time point for the start of the MSG-B window.
  • the UE uses the last PRACH occasion as the reference time point of the MSG-B window.
  • the valid PUSCH occasion can be understood as the PUSCH occasion associated with the occurrence of PRACH transmission.
  • the PUSCH may not be sent, for example, the PRACH is not sent, or the PUSCH is sent with sufficient power for power control reasons, or because the group common PDCCH indicates that the PUSCH transmission symbol is a downlink or flexible symbol, or the UE does not detect the group common PUSCH is not sent due to the failure of the PDCCH, or the difference in the uplink and downlink configurations between the serving cells, or the failure of listen before talk (LBT) on the unlicensed frequency band.
  • LBT listen before talk
  • the MSG3 (PUSCH) can be transmitted by means of repeated transmission.
  • the network device configures or instructs to perform N repeated transmissions of MSG-3
  • the UE may start a contention resolution timer (contention resolution timer) after the Nth transmission.
  • 1 ⁇ N ⁇ M contention resolution timer
  • N may be configured or indicated by the network. N may or may not include the UE due to abandonment of MSG-3 transmission. If no actual transmission is included, regardless of whether actual transmission is performed, the UE counts the transmission opportunities corresponding to the N times of transmission, and the UE starts the contention resolution timer after the resources transmitted by the MSG-3 of the N times of transmission. Of course, at this time, the UE Do at least one actual transfer before opening the window. Or if it is not included, the UE does not count the above-noted transmission occasions, and starts the contention resolution timer after completing N actual MSG-3 transmissions. The UE starts the contention resolution timer at the next symbol after completing the Nth MSG-3 transmission.
  • An embodiment of the present application provides a method for repeated transmission. After the UE completes N repeated transmissions of the first message, the UE opens a time window for receiving the second message. Since the UE performs repeated transmission of the first message in the random access process, the UE can open a time window for the second message after completing N repeated transmissions to receive the second message sent by the network device, that is, the second message.
  • the reception timing of the message is after N repeated transmissions are completed, so the problem that the UE cannot know the reception timing of the second message can be avoided, thereby ensuring the validity and accuracy of the UE receiving the second message.
  • N is less than a preset number of times.
  • the repeated transmission method provided by this embodiment of the present application further includes the following step 301 .
  • Step 301 After receiving the second message within the time window, the UE stops repeatedly transmitting the first message.
  • N ⁇ M after the UE receives MSG-2, the UE may terminate the incomplete MSG-1 transmission; or, after the UE receives MSG-B, the UE may terminate the incomplete MSG-1 transmission. A transmission.
  • the UE may stop repeated transmission of the first message, so as to terminate the transmission of the first message in advance, thereby avoiding redundant repeated transmission of the first message and saving network resources .
  • step 301 may be specifically implemented by the following step 301a.
  • Step 301a After the UE receives the first time period after the start of the second message within the time window, the UE stops repeatedly transmitting the first message.
  • the above-mentioned first duration includes at least one of the following: a time corresponding to a first preset number of symbols of downlink data channel processing time, a time corresponding to a second preset number of symbols of uplink data channel preparation time time.
  • the UE starts PRACH or MSG-A PUSCH transmission at least a first time period after receiving the last symbol of the PDSCH of MSG-2 or MSG-B.
  • the above-mentioned downlink data channel may be PDSCH.
  • the first preset number and the second preset number correspond to the capability of the UE, or correspond to the type of the UE.
  • the UE stops repeatedly transmitting the first message in the foregoing step 301 or step 301a may be specifically implemented through the following step 401.
  • Step 401 when the first message satisfies the first condition, the UE stops repeatedly transmitting the first message
  • the above-mentioned first condition includes at least one of the following:
  • the identity of the preamble sequence in the second message received by the UE matches the identity of the preamble sequence used in the first message;
  • the UE detects the downlink control channel scrambled by RACH-radio network temporary identifier (RA-RNTI), and the system frame number (SFN) information in the downlink control channel is the same as the first
  • RA-RNTI RACH-radio network temporary identifier
  • SFN system frame number
  • the UE can stop the MSG-1 when the preamble ID in the received RAR (ie MSG-2) matches the preamble-ID used by MSG-1 1 transmission.
  • the UE may detect the PDCCH scrambled by RA-RNTI, and the SFN information (partial SFN information or all SFN information) in the PDCCH corresponds to the PRACH occasion transmitted by the preamble in MSG-1 Next, stop the transmission of MSG-1.
  • step 301a stop repeatedly transmitting the first message in the foregoing step 301 or step 301a may be specifically implemented through the following step 402.
  • Step 402 In the case that the first message satisfies the second condition, the UE stops repeatedly transmitting the first message.
  • the above-mentioned second condition includes at least one of the following:
  • the media access control (media access control, MAC) layer protocol data unit contains the contention resolution identifier MAC control unit (control element, CE) of the UE, and the common uplink data channel corresponding to the first message.
  • Control channel-service data unit common control channel-service data unit, CCCH-SDU) matching;
  • the first message includes a cell-radio network temporary identifier (cell-radio network temporary identifier, C-RNTI) MAC-CE, and the UE receives the downlink control channel scrambled by the C-RNTI; and,
  • C-RNTI cell-radio network temporary identifier
  • the UE detects the downlink control channel scrambled by the RNTI (eg MSG-B-RNTI) corresponding to the second message, and the SFN information in the downlink control channel corresponds to the physical random access opportunity of the preamble transmission in the first message.
  • the RNTI eg MSG-B-RNTI
  • the UE can use the contention resolution identity (contention resolution identity) MAC CE contained in the MAC subPDU and match with the CCCH-SDU of the MSG-A PUSCH. , to stop the transmission of MSG-A.
  • the UE may stop the transmission of the MSG-A when the MSG-A includes the C-RNTI MAC-CE, and the UE receives the PDCCH scrambled by the C-RNTI.
  • the UE may detect the PDCCH scrambled by MSGB-RNTI, and the SFN information (part of the SFN information or all the SFN information) in the PDCCH corresponds to the PRACH occasion transmitted by the preamble in the MSG-A Next, stop the transmission of MSG-A.
  • the UE may continue to perform transmission of the incomplete first message (eg, MSG-1 or MSG-A).
  • the incomplete first message eg, MSG-1 or MSG-A.
  • the UE in the contention or non-contention random access process, when the first message satisfies the second condition, the UE stops repeatedly transmitting the first message.
  • the network device can configure the UE to perform multiple repeated transmissions of MSG-1 or MSG-A, and open the corresponding window to receive the response message (such as MSG-2 or MSG-B) of the network device after completing N ⁇ M transmissions, then
  • the UE may have received the response message from the network device before completing the M repeated transmissions of MSG-1 or MSG-A, that is, the network device has received MSG-1 or MSG-A, so the MSG-1 or MSG-A of the uncompleted MN times 1 or MSG-A can stop transmission.
  • the UE stops subsequent transmission of MSG-1 or MSG-A after the time T1 after receiving MSG-2 or MSG-B (ie, the first duration in the above embodiment).
  • the T1 time may include at least one of the following times: the time corresponding to L1 PDSCH processing time (that is, the first preset number in the foregoing embodiment) symbol, and the L2 time PUSCH preparation time (that is, in the foregoing embodiment) The time corresponding to the second preset number) symbol.
  • L1 and L2 correspond to the processing capability of the UE.
  • the time when the UE receives the last symbol of the PDSCH of the RAR (or MSG-B) and the transmission start symbol of MSG-1 (or MSG-A) is greater than or equal to L T,1 + L T, In the case of 2 +0.5 milliseconds (millisecond, msec), the transmission of MSG-1 (or MSG-A) is stopped.
  • L T,1 is the time corresponding to L1 symbols
  • L T,2 is the time corresponding to L2 symbols.
  • N is less than a preset number of times.
  • the repeated transmission method provided by this embodiment of the present application further includes the following step 501 .
  • Step 501 The UE stops repeatedly transmitting the first message when the first message satisfies the third condition.
  • the above third condition includes at least one of the following: the UE receives the second message, the UE receives the first temporary cell-radio network temporary identifier (TC-RNTI) scheduling information.
  • TC-RNTI temporary cell-radio network temporary identifier
  • the UE may terminate the incomplete MSG-3 transmission; or, after the UE receives the MSG-3 scheduled by the TC-RNTI, the UE may terminate the incomplete MSG-3 transmission.
  • the above-mentioned third condition further includes at least one of the following:
  • the CCCH-SDU is included in the first message.
  • the UE detects the downlink control channel scrambled by the C-RNTI, and the first message includes the C-RNTI MAC CE (that is, the C-RNTI MAC CE is included in MSG-3), where the UE may be a connected UE.
  • the C-RNTI MAC CE that is, the C-RNTI MAC CE is included in MSG-3
  • the above-mentioned downlink control channel may be a PDCCH.
  • the above-mentioned first message includes a CCCH-SDU.
  • the above-mentioned third condition also includes: the UE successfully demodulates the second message, the MAC PDU in the second message includes the contention resolution identification MAC CE of the UE, and the contention resolution identification MAC CE of the UE is the same as the CCCH-CE transmitted by the UE in the first message. SDU match.
  • the UE can include CCCH-SDU in MSG-3, and the UE successfully demodulates MSG-4, and the MAC PDU in the MSG-4 includes the contention resolution identity of the UE. ) MAC CE, and when the UE's contention resolution identifier matches the CCCH-SDU transmitted by the UE in MSG-3, the transmission of MSG-3 is stopped.
  • the UE may continue to perform transmission of the incomplete first message (for example, MSG-3).
  • the incomplete first message for example, MSG-3
  • the repeated transmission of the first message (eg MSG-3) is stopped.
  • the first duration includes at least one of the following: a time corresponding to a first preset number of symbols in downlink data channel processing time, and a time corresponding to a second preset number of symbols in uplink data channel preparation time.
  • the UE starts the MSG-3 transmission after at least a first time period after receiving the last symbol of the PDSCH of the MSG-4.
  • the network device can configure the UE to perform multiple repeated transmissions of MSG-3, and start the corresponding contention resolution timer after completing N ⁇ M transmissions to receive the contention resolution information of the network device (for example, the contention resolution carried in MSG-4).
  • contention resolution information the UE may receive a response message from the network device before completing the M times of repeated transmission of MSG-3, that is, the network device has received MSG-3, so the uncompleted MN times of MSG-3 can stop transmission.
  • the UE stops subsequent transmission of MSG-3 after the time T1 after receiving MSG-4 (ie, the first duration in the above embodiment).
  • the T1 time may include at least one of the following times: the time corresponding to L1 PDSCH processing time (that is, the first preset number in the foregoing embodiment) symbol, and the L2 time PUSCH preparation time (that is, in the foregoing embodiment) The time corresponding to the second preset number) symbol.
  • L1 and L2 correspond to the processing capability of the UE.
  • the transmission is stopped. MSG-3.
  • L T,1 is the time corresponding to L1 symbols
  • L T,2 is the time corresponding to L2 symbols.
  • the UE may stop repeated transmission of the first message when the first message satisfies the third condition, so as to terminate the transmission of the first message in advance, so as to avoid redundant repeated transmission of the first message and save the network resource.
  • the execution subject may be a UE, or a repeated transmission device, or a control module in the repeated transmission device for executing the method for loading the repeated transmission.
  • the method for performing loading and repeated transmission performed by the UE is used as an example to illustrate the repeated transmission method provided by the embodiments of the present application.
  • FIG. 4 shows a possible schematic structural diagram of the repeated transmission device involved in the embodiment of the present application.
  • the repeated transmission device 40 may include: an opening module 41 .
  • the opening module 41 is configured to open a time window for receiving the second message after completing N repeated transmissions of the first message; wherein the first message is a message sent by the UE during the random access process, and the second message is The message sent by the network device during the random access process, where N is a positive integer.
  • the above-mentioned first message is MSG-A sent by the UE in the two-step random access process
  • the above-mentioned second message is MSG-B sent by the network device in the two-step random access process.
  • the above-mentioned first message is MSG-1 sent by the UE in the four-step random access process
  • the above-mentioned second message is MSG-2 sent by the network device in the four-step random access process.
  • the above-mentioned first message is MSG-3 sent by the UE in the four-step random access process
  • the above-mentioned second message is MSG-4 sent by the network device in the four-step random access process.
  • N is configured by the network device, or pre-defined, or agreed by a protocol. N is less than or equal to a preset number of times, where the preset number of times is the maximum number of transmissions of the first message configured by the network device.
  • the repeated transmission device 40 provided in this embodiment of the present application further includes: a stopping module 42 .
  • the stopping module 42 is configured to stop the repeated transmission of the first message after receiving the second message within the time window after the opening module 41 opens the time window for receiving the second message.
  • the above-mentioned stopping module 42 is specifically configured to stop the repeated transmission of the first message after the UE receives the first time period after the start of the second message within the time window.
  • the first duration includes at least one of the following: time corresponding to a first preset number of symbols in downlink data channel processing time, and time corresponding to a second preset number of symbols in uplink data channel preparation time.
  • the above-mentioned stopping module 42 is specifically configured to stop the repeated transmission of the first message when the first message satisfies the first condition.
  • the first condition includes at least one of the following:
  • the identity of the preamble sequence in the second message received by the UE matches the identity of the preamble sequence used in the first message;
  • the UE detects the downlink control channel scrambled by the RA-RNTI, and the SFN information in the downlink control channel corresponds to the physical random access opportunity of the preamble transmission in the first message.
  • the above-mentioned stopping module 42 is specifically configured to stop the repeated transmission of the first message when the first message satisfies the second condition.
  • the second condition includes at least one of the following:
  • the MAC layer PDU contains the contention resolution identifier MAC CE of the UE, and matches the CCCH-SDU of the uplink data channel corresponding to the first message;
  • the first message includes the C-RNTI MAC-CE, and the UE receives the downlink control channel scrambled by the C-RNTI;
  • the UE detects the downlink control channel scrambled by the RNTI corresponding to the second message, and the SFN information in the downlink control channel corresponds to the physical random access opportunity of the preamble sequence transmission in the first message.
  • the repeated transmission device 40 provided in this embodiment of the present application further includes: a stopping module 42 .
  • the stopping module 42 is configured to stop the repeated transmission of the first message when the first message satisfies the third condition after the opening module 41 opens the time window for receiving the second message.
  • the third condition includes at least one of the following: the UE receives the second message and the UE receives the first message scheduled by the TC-RNTI.
  • the above-mentioned third condition further includes at least one of the following:
  • the CCCH-SDU is included in the first message.
  • the UE detects the downlink control channel scrambled by the C-RNTI, and the first message includes the C-RNTI MAC CE.
  • the above-mentioned first message includes CCCH-SDU.
  • the above-mentioned third condition also includes: the UE successfully demodulates the second message, the MAC PDU in the second message includes the contention resolution identification MAC CE of the UE, and the contention resolution identification MAC CE of the UE and the CCCH transmitted by the UE in the first message -SDU matching.
  • the Nth transmission of the first message by the UE is: the Nth transmission of the preamble sequence or the Nth transmission of the uplink data channel.
  • the starting position of the above-mentioned time window is: the UE monitors the first symbol of the earliest control resource set of the common search space set of the preset type of downlink control channel, and the starting position of the time window is: The symbol is the symbol after the target symbol.
  • the target symbol is: the UE transmits the last symbol of the RO where the first message is located for the Nth time, or the UE transmits the last symbol of the PO where the uplink data channel is located for the Nth time.
  • An embodiment of the present application provides a repeated transmission device. Since the repeated transmission device performs repeated transmission of the first message in the random access process, the repeated transmission device can start the time for the second message after completing N repeated transmissions. Window to receive the second message sent by the network device, that is, the timing of receiving the second message is after N repeated transmissions are completed, so it can avoid the problem that the repeated transmission device cannot know the receiving timing of the second message, thereby ensuring repeated transmission. The validity and accuracy of the second message received by the device.
  • the repeated transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle electronic device, a wearable device, a UMPC, a netbook or a PDA, etc.
  • the non-mobile electronic device may be a server, a network attached storage (Network Attached Storage), etc. , NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the repeated transmission device in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the repeated transmission device provided in the embodiment of the present application can implement each process implemented by the UE in the foregoing method embodiment, and to avoid repetition, details are not repeated here.
  • an embodiment of the present application also provides a UE 90, including a processor 91, a memory 92, a program or instruction stored on the memory 92 and executable on the processor 91, the When the program or instruction is executed by the processor 91, each process of the foregoing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the UE in the embodiment of the present application includes the above-mentioned mobile electronic device and non-mobile electronic device.
  • FIG. 7 is a schematic diagram of a hardware structure of a UE implementing an embodiment of the present application.
  • the UE 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110 and other components .
  • the UE 100 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power supply such as a battery
  • the UE structure shown in FIG. 7 does not constitute a limitation on the UE, and the UE may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the processor 110 is configured to open a time window for receiving the second message after completing N repeated transmissions of the first message; wherein the first message is a message sent by the UE during the random access process, and the second message is The message sent by the network device during the random access process, where N is a positive integer.
  • An embodiment of the present application provides a UE. Since the UE performs repeated transmission of the first message in the random access process, the UE can open a time window for the second message after completing N repeated transmissions to receive the network device.
  • the second message sent that is, the receiving timing of the second message is after N repeated transmissions are completed, so the problem that the UE cannot know the receiving timing of the second message can be avoided, thereby ensuring the validity and accuracy of the UE receiving the second message. sex.
  • the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072 .
  • the touch panel 1071 is also called a touch screen.
  • the touch panel 1071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • Memory 109 may be used to store software programs as well as various data including, but not limited to, application programs and operating systems.
  • the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, and the like, and the modem processor mainly processes wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 110 .
  • Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing method embodiments can be implemented, and the same technology can be achieved The effect, in order to avoid repetition, is not repeated here.
  • the processor is the processor in the UE described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as computer read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the foregoing method embodiments , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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Abstract

本申请公开了一种重复传输方法、装置及用户设备，属于通信技术领域。该方法包括：UE在完成第一消息的N次重复传输之后，开启接收第二消息的时间窗口；其中，第一消息为UE在随机接入过程中发送的消息，第二消息为网络设备在随机接入过程中发送的消息，N为正整数。

Description

重复传输方法、装置及用户设备
相关申请的交叉引用
本申请主张在2020年07月24日在中国提交的中国专利申请号202010725021.5的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种重复传输方法、装置及用户设备。
背景技术
通常，用户设备(user equipment，UE)在进行随机接入(例如两步随机接入(2-step RACH)或四步随机接入(4-step RACH))时，可以向网络设备发送对应的消息(例如消息A(即MSG-A)或消息1(即MSG-1))，以使得网络设备可以向UE发送对应的随机接入响应(RACH access response，RAR)(例如消息B(即MSG-B)或消息2(即MSG-2))，以实现对应的随机接入过程。
但是，在随机接入过程中，由于某些原因(例如网络覆盖范围有限或UE能力有限)，会存在数据传输性能较差而导致随机接入时延较大的问题，因此可以通过MSG-A或MSG-1的重复传输，以保证这些数据的传输性能。然而，在MSG-A或MSG-1进行重复传输的情况下，对于MSG-B或MSG-2的时间窗口的开启时机，并没有明确的方案，即MSG-B或MSG-2的接收时机并不明确，因此会存在UE无法获知MSG-B或MSG-2的接收时机的问题。
发明内容
本申请实施例的目的是提供一种重复传输方法、装置及用户设备，能够解决UE无法获知MSG-B或MSG-2的接收时机的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种重复传输方法，该重复传输方法包括：UE在完成第一消息的N次重复传输之后，开启接收第二消息的时间窗口；其中，第一消息为UE在随机接入过程中发送的消息，第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
第二方面，本申请实施例提供了一种重复传输装置，该重复传输装置包括：开启模块。其中，开启模块，用于在完成第一消息的N次重复传输之后，开启接收第二消息的时间窗口；其中，第一消息为UE在随机接入过程中发送的消息，第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
第三方面，本申请实施例提供了一种UE，该UE包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的重复传输方法的步骤。
第四方面，本申请实施例提供了一种可读存储介质，所述可读存储介质上存储程 序或指令，所述程序或指令被处理器执行时实现如第一方面所述的重复传输方法的步骤。
第五方面，本申请实施例提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的重复传输方法。
在本申请实施例中，在UE完成第一消息的N次重复传输之后，UE开启接收第二消息的时间窗口。由于UE在随机接入过程中进行第一消息的重复传输的情况下，UE可以在完成N次重复传输之后，开启第二消息的时间窗口，以接收网络设备发送的第二消息，即第二消息的接收时机是在完成N次重复传输之后，因此可以避免UE无法获知第二消息的接收时机的问题，从而可以保证UE接收第二消息的有效性和准确性。
附图说明
图1是本申请实施例提供的一种重复传输方法的示意图之一；
图2是本申请实施例提供的一种重复传输方法的示意图之二；
图3是本申请实施例提供的一种重复传输方法的示意图之三；
图4是本申请实施例提供的一种重复传输装置的结构示意图之一；
图5是本申请实施例提供的一种重复传输装置的结构示意图之二；
图6是本申请实施例提供的一种UE的硬件结构示意图之一；
图7是本申请实施例提供的一种UE的硬件结构示意图之二。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面对本申请实施例提供的重复传输方法、装置及用户设备中涉及的一些概念和/或术语做一下解释说明。
四步随机接入过程(4-step RACH)：在4-step RACH中，UE首先向网络设备发送MSG-1，该MSG-1中包含前导序列(preamble)；网络设备检测到preamble后，可以向UE发送MSG-2，包含该preamble对应的随机接入响应(RAR)消息；UE接收到MSG-2后，根据RAR的指示，向UE发送消息3(即MSG-3)；网络设备接收到MSG-3后，可以向UE发送MSG-4，该MSG-4中包含竞争解决标识(contention resolution ID)；UE接收到MSG-4后，即完成四步随机接入。在4-step RACH过程中，在用于传输RAR的MSG-2中，包含上行调度信息(UL grant)，UL grant可以用于调度MSG-3，并包含传输MSG-3 相关的调度信息指示。
两步随机接入过程(2-step RACH)：在NR系统中，除了支持4-step RACH过程，也支持2-step RACH过程。在2-step RACH过程中，UE可以先发送MSG-A，该MSG-A由物理随机接入前导序列(PRACH preamble)和物理上行共享信道(physical uplink shared channel，PUSCH)两部分组成。PUSCH的传输信息中可以包含UE-ID信息。网络设备接收到UE发送的MSG-A之后，可以向UE发送MSG-B。网络设备通过MSG-B-无线网络临时标识(radio network tempory identity，RNTI)加扰的物理下行控制信道(physical downlink control channel，PDCCH)调度的物理下行共享信道(physical downlink shared channel，PDSCH)，该PDSCH中可以包含UE-ID，UE检测到在MSG-A中发送的UE-ID之后，则认为竞争解决成功，并向网络设备反馈MSG-B的混合自动重传请求应答(hybrid automatic repeat request acknowledgement，HARQ-ACK)。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(long term evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(code division multiple access，CDMA)、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 frequency division multiple access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
本申请实施例中的UE也可以称作终端设备，UE可以是手机、平板电脑(tablet personal computer)、膝上型电脑(laptop computer)或称为笔记本电脑、个人数字助理(personal digital assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(mobile internet device，MID)、可穿戴式设备(wearable device)或车载设备(VUE)、行人终端(PUE)等终端侧设备，可穿戴式设备包括：手环、耳机、眼镜等。需要说明的是，在本申请实施例并不限定UE的具体类型。
本申请实施例中的网络设备可以是基站或核心网，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(base transceiver station，BTS)、无线电基站、无线电收发机、基本服务集(basic service set，BSS)、扩展服务集(extended service set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(transmitting receiving point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的重复传输方法进行详细地说明。
本申请实施例提供一种重复传输方法，图1示出了本申请实施例提供的一种重复传输方法的流程图，该方法可以应用于UE。如图1所示，本申请实施例提供的重复传输方法可以包括下述的步骤201和步骤202。
步骤201、UE进行第一消息的重复传输。
可选地，本申请实施例中，UE可以根据网络设备的配置信息，进行第一消息的重复传输。
可选地，本申请实施例中，上述配置信息可以包括第一消息的重复传输次数(即最大传输次数)。
可选地，本申请实施例中，上述第一消息可以为UE在两步随机接入过程中发送的MSG-A；或者，上述第一消息可以为UE在四步随机接入过程中发送的MSG-1；或者，上述第一消息可以为UE在四步随机接入过程中发送的MSG-3。
步骤202、UE在完成第一消息的N次重复传输之后，开启接收第二消息的时间窗口。
本申请实施例中，上述第一消息为UE在随机接入过程中发送的消息，第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
可选地，本申请实施例中，N可以为网络设备配置的，或者预定义的，或者协议约定的。
可以理解，若N的数值为网络设备配置的，则上述步骤202可以理解为：网络设备配置了UE开启接收第二消息的时间窗口的条件为：UE在完成第一消息的N次重复传输之后。
可选地，本申请实施例中，N可以为名义(Nominal)传输次数，或者实际(actual)传输次数。
需要说明的是，名义重复次数可以理解为网络设备配置的重复次数，实际传输次数可以理解为UE实际传输的次数。
可选地，本申请实施例中，上述实际传输次数可以适用于MSG-A中的PUSCH。
可选地，本申请实施例中，N小于或等于预设次数，该预设次数为网络设备配置的第一消息的最大传输次数(即下述实施例中的M)。
需要说明的是，若第一消息为MSG-3，则预设次数可以理解为网络设备配置的或者调度的MSG3的最大传输次数。
可选地，本申请实施例中，上述第一消息为UE在两步随机接入过程中发送的MSG-A，第二消息为网络设备在两步随机接入过程中发送的MSG-B。
可选地，本申请实施例中，上述第一消息为UE在四步随机接入过程中发送的MSG-1，第二消息为网络设备在四步随机接入过程中发送的MSG-2。
可选地，本申请实施例中，上述第一消息为UE在四步随机接入过程中发送的MSG-3，第二消息为网络设备在四步随机接入过程中发送的MSG-4。
可选地，本申请实施例中，若第一消息为UE在两步随机接入过程中发送的消息(即MSG-A)，则UE第N次传输第一消息为：第N次传输前导序列或第N次传输上行数据信道。
可选地，本申请实施例中，上述上行数据信道可以为PUSCH。
可选地，本申请实施例中，上述第二消息可以为网络设备在随机接入过程中发送的随机接入响应(即RAR)，该RAR可以为四步随机接入过程中的MSG-2，或者为两步随机接入过程中的MSG-B。
可选地，本申请实施例中，若上述RAR为MSG-2，则该RAR中包括以下至少一项： 随机接入无线网络临时标识(random access radio network temporary identifier，RA-RNTI)加扰的PDCCH和该PDCCH调度的PDSCH。
可选地，本申请实施例中，若上述RAR为MSG-B，则该RAR中包括以下至少一项：MSG-B-RNTI加扰的PDCCH和该PDCCH调度的PDSCH。
可选地，本申请实施例中，若上述第二消息为网络设备在四步随机接入过程中发送的MSG-4，则第二消息中包括竞争解决信息。
需要说明的是，UE开启接收第二消息的时间窗口可以理解为：UE开始第二消息的计时器(例如RAR-Timer(例如MSG-2-Timer或MSG-B-Timer)或竞争解决(contention resolution)-Timer)，或者开启对应的窗口(例如RAR window(例如MSG-2 window或MSG-B window)或竞争解决window)，以接收网络设备的响应消息。
可选地，本申请实施例中，上述时间窗口的起始位置为：UE监听预设类型的下行控制信道的公共搜索空间集的最早的控制资源集的第一个符号，且时间窗口的起始符号为目标符号后的符号。其中，目标符号为：UE第N次传输第一消息所在随机接入时机(RACH occasion，RO)的最后一个符号，或者，UE第N次传输上行数据信道所在传输时机(PUSCH occasion，PO)的最后一个符号。
可选地，本申请实施例中，上述时间窗口的起始符号可以为目标符号后的至少一个符号之后的符号。
可以理解，一种方式中，上述RAR window在网络设备配置的UE监听Type-1 PDCCH CSS set的最早的CORESET的第一个符号开始，且在UE发送第N次MSG-1或MSG-A所在RO的最后一个符号后的至少一个符号之后。另一种方式中，上述RAR window在网络设备配置的UE监听Type-1 PDCCH CSS set的最早的CORESET的第一个符号开始，且在UE发送第N次上行数据信道所在PO的最后一个符号后的至少一个符号之后。
下面通过具体的实施例(即实施例一)，对本申请实施例中的重复传输方法进行具体说明。
实施例一
在RACH过程中，MSG-1(PRACH)和MSG-A(PRACH和PUSCH)可以使用重复传输的方式进行传输。例如网络设备配置或者指示进行M次(即最大传输次数)PRACH重复传输，UE可以在第N次传输之后开启RAR window(即MSG-2 window或MSG-B window)。其中，1≤N≤M。对于MSG-A的重复传输，可以是在第N次premable传输之后，或者第N次PUSCH传输时开启对应的window。
若N＝M，则UE在完成所有的重复传输之后，开启对应的window接收网络的响应。若N＝1，即UE完成一次传输即可开启对应的window以接收网络的响应消息(例如MSG-2或MSG-B)。
N可以由网络设备配置或者指示。N可以包括或者不包括UE因为放弃PRACH传输。如果包括没有进行实际传输，则无论有没有进行实际传输，UE将N次传输对应的传输时机(也可以称为传输机会)进行计数，UE在N次传输的PRACH occasion之后开启window，当然此时UE至少进行完一次实际传输再开启window。或者不包括，则UE不将上述未进行的传输时机计数，在完成N次实际传输之后开启对应的window。
可选地，本申请实施例中，若MSG-A或MSG-1的重复传输是由PDCCH触发的，则 N的数值或者M的数值，可以在该PDCCH中指示。
可选地，本申请实施例中，MSG-3对应的N的数值，可以在RAR或者TC-RNTI加扰的PDCCH中指示。
RAR window在网络设备配置UE监听预设类型(例如Type-1)的PDCCH公共搜索空间集(common search space，CSS set)的最早的控制资源集(CORESET)的第一个符号开始，且在UE发送第N次MSG-1或者MSG-A所在RO的最后一个符号或的至少一个符号之后。
需要说明的是PRACH和PUSCH重复传输的次数不一定相同。UE根据最后的有效PUSCH occasion作为MSG-B window开始的参考时间点。
如果所有重复传输的PUSCH occasion都不是有效的occasion或者因为一些原因没有传输，则UE使用最后一个PRACH occasion作为MSG-B window的参考时间点。其中，有效的PUSCH occasion可以理解为与PRACH传输的occasion关联的PUSCH occasion。
在一些情况下可能导致PUSCH没有发送，例如PRACH没有发送，或者因为功率控制的原因PUSCH足够的功率发送，或者因为组公共PDCCH指示PUSCH传输的符号为下行或者灵活符号，或者UE未检测该组公共的PDCCH，或者服务小区之间上下行配置的不同，或者在非授权频段上进行先听后讲(listen before talk，LBT)失败导致PUSCH没有发送。
在RACH过程中，MSG3(PUSCH)可以使用重复传输的方式进行传输。例如网络设备配置或者指示进行N次MSG-3重复传输，UE可以在第N次传输之后开启竞争解决计时器(contention resolution timer)。其中，1≤N≤M。
若N＝M，则UE在完成所有的重复传输之后，开启竞争解决计时器。若N＝1，即UE完成一次传输即可开启竞争解决计时器。
N可以由网络配置或者指示。N之可以包括或者不包括UE因为放弃MSG-3传输。如果包括没有进行实际传输，则无论有没有进行实际传输，UE将N次传输对应的传输时机进行计数，UE在N次传输的MSG-3传输的资源之后开启竞争解决计时器，当然此时UE至少进行完一次实际传输再开启window。或者不包括，则UE不将上述未进行的传输时机计数，在完成N次MSG-3实际传输之后开启竞争解决计时器。UE在完成第N次MSG-3传输的下一个符号(symbol)开始竞争解决计时器。
本申请实施例提供一种重复传输方法，在UE完成第一消息的N次重复传输之后，UE开启接收第二消息的时间窗口。由于UE在随机接入过程中进行第一消息的重复传输的情况下，UE可以在完成N次重复传输之后，开启第二消息的时间窗口，以接收网络设备发送的第二消息，即第二消息的接收时机是在完成N次重复传输之后，因此可以避免UE无法获知第二消息的接收时机的问题，从而可以保证UE接收第二消息的有效性和准确性。
可选地，本申请实施例中，N小于预设次数。结合图1，如图2所示，在上述步骤202之后，本申请实施例提供的重复传输方法还包括下述的步骤301。
步骤301、UE在时间窗口内接收到第二消息之后，停止重复传输第一消息。
可以理解，在N<M的情况下：UE在接收到MSG-2之后，UE可以终止未完成的MSG-1传输；或者，UE在接收到MSG-B之后，UE可以终止未完成的MSG-A传输。
本申请实施例中，UE可以在时间窗口内接收到第二消息之后，停止重复传输第一消 息，以提前终止第一消息的传输，从而避免第一消息的多余的重复传输，以节省网络资源。
可选地，本申请实施例中，上述步骤301具体可以通过下述的步骤301a实现。
步骤301a、UE在时间窗口内接收到第二消息开始后的第一时长之后，停止重复传输第一消息。
本申请实施例中，上述第一时长包括以下至少一项：下行数据信道处理时间的第一预设个数的符号对应的时间、上行数据信道准备时间的第二预设个数的符号对应的时间。
可以理解，UE在接收到MSG-2或MSG-B的PDSCH的最后一个symbol后的至少第一时长之后开始的PRACH或MSG-A PUSCH传输。
可选地，本申请实施例中，上述下行数据信道可以为PDSCH。
可选地，本申请实施例中，第一预设个数和第二预设个数对应于UE的能力，或者对应于UE的类型。
需要说明的是，针对上述第一预设个数和第二预设个数的具体说明，将在下述实施例中进行描述，此处不予赘述。
可选地，在本申请实施例的一种可能的实现方式中，上述步骤301或步骤301a中的“UE停止重复传输第一消息”具体可以通过下述的步骤401实现。
步骤401、UE在第一消息满足第一条件的情况下，停止重复传输第一消息；
本申请实施例中，上述第一条件包括以下至少一项：
UE接收到的第二消息中的前导序列的标识和第一消息使用的前导序列的标识匹配；以及，
UE检测到随机接入-无线网络临时标识(RACH-radio network temporary identitier，RA-RNTI)加扰的下行控制信道，且下行控制信道中的系统帧号(system frame number，SFN)信息与第一消息中的前导序列传输的物理随机接入时机对应。
可以理解，对于停止MSG-1的传输，一种方式中，UE可以在接收到的RAR(即MSG-2)中的preamble ID和MSG-1使用的preamble-ID匹配的情况下，停止MSG-1的传输。另一种方式中，UE可以在检测到RA-RNTI加扰的PDCCH，且该PDCCH中的SFN信息(部分SFN信息或全部SFN信息)与MSG-1中的preamble传输的PRACH occasion相对应的情况下，停止MSG-1的传输。
可选地，在本申请实施例的另一种可能的实现方式中，上述步骤301或步骤301a中的“停止重复传输第一消息”具体可以通过下述的步骤402实现。
步骤402、在第一消息满足第二条件的情况下，UE停止重复传输第一消息。
本申请实施例中，上述第二条件包括以下至少一项：
媒体访问控制(media access control，MAC)层协议数据单元(protocol data unit，PDU)中包含UE的竞争解决标识MAC控制单元(control element，CE)，且与第一消息对应的上行数据信道的公共控制信道-服务数据单元(common control channel-service data unit，CCCH-SDU)匹配；
第一消息中包含小区无线网络临时标识(cell-radio network temporary identifier，C-RNTI)MAC-CE，且UE接收到C-RNTI加扰的下行控制信道；以及，
UE检测到第二消息对应的RNTI(例如MSG-B-RNTI)加扰的下行控制信道，且下行控制信道中的SFN信息与第一消息中的前导序列传输的物理随机接入时机对应。
可以理解，对于停止MSG-A的传输，一种方式中，UE可以在MAC subPDU中包含的UE竞争解决标识(contention resolution identity)MAC CE，且与MSG-A PUSCH的CCCH-SDU匹配的情况下，停止MSG-A的传输。另一种方式中，UE可以在MSG-A中包含C-RNTI MAC-CE，且UE接收到了C-RNTI加扰的PDCCH的情况下，停止MSG-A的传输。又一种方式中，UE可以在检测到MSGB-RNTI加扰的PDCCH，且该PDCCH中的SFN信息(部分SFN信息或全部SFN信息)与MSG-A中的preamble传输的PRACH occasion相对应的情况下，停止MSG-A的传输。
可选地，本申请实施例中，在第一消息不满足第二条件的情况下，UE可以继续执行未完成的第一消息(例如MSG-1或MSG-A)的传输。
可选地，本申请实施例中，在竞争或者非竞争的随机接入过程中，在第一消息满足第二条件的情况下，UE停止重复传输第一消息。
下面通过具体的实施例(即实施例二)，对本申请实施例中的重复传输方法进行具体说明。
实施例二
网络设备可以配置UE进行多次MSG-1或者MSG-A的重复传输，并且在完成N<M次传输就开启对应的window接收网络设备的响应消息(例如MSG-2或者MSG-B)，则UE可能在完成MSG-1或MSG-A的M次重复传输之前就已经接收到了网络设备的响应消息，即网络设备已经接收到了MSG-1或者MSG-A，因此未完成的M-N次的MSG-1或者MSG-A可以停止传输。UE在收到MSG-2或者MSG-B之后的T1时间(即上述实施例中的第一时长)之后，停止后续的MSG-1或者MSG-A的传输。其中，T1时间可以包含如下至少之一的时间：PDSCH处理时间的L1个(即上述实施例中的第一预设个数)symbol对应的时间、PUSCH准备时间的L2个(即上述实施例中的第二预设个数)symbol对应的时间。
其中，L1和L2对应于UE的处理能力。一种实现方式中，在UE接收到RAR(或者MSG-B)的PDSCH的最后一个symbol和MSG-1(或者MSG-A)传输起始符号的时间大于或等于L T,1+L T,2+0.5毫秒(millisecond，msec)的情况下，停止传输MSG-1(或者MSG-A)。其中，L T,1是L1个symbol对应的时间，L T,2是L2个symbol对应的时间。
可选地，本申请实施例中，N小于预设次数。结合图1，如图3所示，在上述步骤202之后，本申请实施例提供的重复传输方法还包括下述的步骤501。
步骤501、UE在第一消息满足第三条件的情况下，停止重复传输第一消息。
本申请实施例中，上述第三条件包括以下至少一项：UE接收到第二消息、UE接收到临时的小区无线网络临时标识(temporary cell-radio network temporary identifier，TC-RNTI)调度的第一消息。
可以理解，UE在接收到MSG-4之后，UE可以终止未完成的MSG-3传输；或者，UE在接收到TC-RNTI调度的MSG-3之后，UE可以终止未完成的MSG-3传输。
可选地，本申请实施例中，上述第三条件还包括以下至少一项：
第一消息中包含CCCH-SDU；以及，
UE检测到C-RNTI加扰的下行控制信道，且第一消息中包含C-RNTI MAC CE(即C-RNTI MAC CE is included in MSG-3)，其中，该UE可以为连接态的UE。
可选地，本申请实施例中，上述下行控制信道可以为PDCCH。
可选地，本申请实施例中，上述第一消息中包含CCCH-SDU。上述第三条件还包括：UE成功解调第二消息，第二消息中的MAC PDU包含UE的竞争解决标识MAC CE，且UE的竞争解决标识MAC CE与UE在第一消息中传输的CCCH-SDU匹配。
可以理解，对于停止MSG-3的传输，UE可以在MSG-3中包含CCCH-SDU、且UE成功解调MSG-4，该MSG-4中的MAC PDU包含UE的竞争解决标识(contention resolution identity)MAC CE，且该UE的竞争解决标识与UE在MSG-3传输的CCCH-SDU匹配的情况下，停止MSG-3的传输。
可选地，本申请实施例中，在第一消息不满足第三条件的情况下，UE可以继续执行未完成的第一消息(例如MSG-3)的传输。
可选地，本申请实施例中，在UE在时间窗口内接收到第二消息(例如MSG-4)开始后的第一时长之后，停止重复传输第一消息(例如MSG-3)。其中，第一时长包括以下至少一项：下行数据信道处理时间的第一预设个数的符号对应的时间、上行数据信道准备时间的第二预设个数的符号对应的时间。
可以理解，UE在接收到MSG-4的PDSCH的最后一个symbol后的至少第一时长之后开始的MSG-3传输。
下面通过具体的实施例(即实施例三)，对本申请实施例中的重复传输方法进行具体说明。
实施例三
网络设备可以配置UE进行多次MSG-3的重复传输，并且在完成N<M次传输就开启对应的竞争解决计数器(contention resolution timer)接收网络设备的竞争解决信息(例如MSG-4中携带的竞争解决信息)，则UE可能在完成MSG-3的M次重复传输之前就接收到了网络设备的响应消息，即网络设备已经接收到了MSG-3，因此未完成的M-N次的MSG-3可以停止传输。UE在接收到MSG-4之后的T1时间(即上述实施例中的第一时长)之后，停止后续的MSG-3的传输。其中，T1时间可以包含如下至少之一的时间：PDSCH处理时间的L1个(即上述实施例中的第一预设个数)symbol对应的时间、PUSCH准备时间的L2个(即上述实施例中的第二预设个数)symbol对应的时间。
其中，L1和L2对应于UE的处理能力。一种实现方式中，在UE接收到MSG-4的PDSCH的最后一个symbol和MSG-3传输起始符号的时间大于或等于L T,1+L T,2+0.5毫秒的情况下，停止传输MSG-3。其中，L T,1是L1个symbol对应的时间，L T,2是L2个symbol对应的时间。
本申请实施例中，UE可以在第一消息满足第三条件的情况下，停止重复传输第一消息，以提前终止第一消息的传输，从而避免第一消息的多余的重复传输，以节省网络资源。
需要说明的是，本申请实施例提供的重复传输方法，执行主体可以为UE，或者重复传输装置，或者该重复传输装置中的用于执行加载重复传输方法的控制模块。本申请实施例中以UE执行加载重复传输方法为例，说明本申请实施例提供的重复传输方法。
图4示出了本申请实施例中涉及的重复传输装置的一种可能的结构示意图。如图4所示，该重复传输装置40可以包括：开启模块41。
其中，开启模块41，用于在完成第一消息的N次重复传输之后，开启接收第二消息的 时间窗口；其中，第一消息为UE在随机接入过程中发送的消息，第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
在一种可能的实现方式中，上述第一消息为UE在两步随机接入过程中发送的MSG-A，上述第二消息为网络设备在两步随机接入过程中发送的MSG-B。或者，上述第一消息为UE在四步随机接入过程中发送的MSG-1，上述第二消息为网络设备在四步随机接入过程中发送的MSG-2。或者，上述第一消息为UE在四步随机接入过程中发送的MSG-3，上述第二消息为网络设备在四步随机接入过程中发送的MSG-4。
在一种可能的实现方式中，N为网络设备配置的，或者预定义的，或者协议约定的。N小于或等于预设次数，该预设次数为网络设备配置的第一消息的最大传输次数。
在一种可能的实现方式中，N小于预设次数。结合图4，如图5所示，本申请实施例提供的重复传输装置40还包括：停止模块42。其中，停止模块42，用于在开启模块41开启接收第二消息的时间窗口之后，在时间窗口内接收到第二消息之后，停止重复传输第一消息。
在一种可能的实现方式中，上述停止模块42，具体用于在UE在时间窗口内接收到第二消息开始后的第一时长之后，停止重复传输第一消息。其中，第一时长包括以下至少一项：下行数据信道处理时间的第一预设个数的符号对应的时间、上行数据信道准备时间的第二预设个数的符号对应的时间。
在一种可能的实现方式中，上述停止模块42，具体用于在第一消息满足第一条件的情况下，停止重复传输第一消息。其中，第一条件包括以下至少一项：
UE接收到的第二消息中的前导序列的标识和第一消息使用的前导序列的标识匹配；以及，
UE检测到RA-RNTI加扰的下行控制信道，且下行控制信道中的SFN信息与第一消息中的前导序列传输的物理随机接入时机对应。
在一种可能的实现方式中，上述停止模块42，具体用于在第一消息满足第二条件的情况下，停止重复传输第一消息。其中，第二条件包括以下至少一项：
MAC层PDU中包含UE的竞争解决标识MAC CE，且与第一消息对应的上行数据信道的CCCH-SDU匹配；
第一消息中包含C-RNTI MAC-CE，且UE接收到C-RNTI加扰的下行控制信道；以及，
UE检测到第二消息对应的RNTI加扰的下行控制信道，且下行控制信道中的SFN信息与第一消息中的前导序列传输的物理随机接入时机对应。
在一种可能的实现方式中，N小于预设次数。结合图4，如图5所示，本申请实施例提供的重复传输装置40还包括：停止模块42。其中，停止模块42，用于在开启模块41开启接收第二消息的时间窗口之后，在第一消息满足第三条件的情况下，停止重复传输第一消息。其中，第三条件包括以下至少一项：UE接收到第二消息和UE接收到TC-RNTI调度的第一消息。
在一种可能的实现方式中，上述第三条件还包括以下至少一项：
第一消息中包含CCCH-SDU；以及，
UE检测到C-RNTI加扰的下行控制信道，且第一消息中包含C-RNTI MAC CE。
在一种可能的实现方式中，上述第一消息中包含CCCH-SDU。上述第三条件还包括： UE成功解调第二消息，该第二消息中的MAC PDU包含UE的竞争解决标识MAC CE，且UE的竞争解决标识MAC CE与UE在第一消息中传输的CCCH-SDU匹配。
在一种可能的实现方式中，若第一消息为UE在两步随机接入过程中发送的消息，则UE第N次传输第一消息为：第N次传输前导序列或第N次传输上行数据信道。
在一种可能的实现方式中，上述时间窗口的起始位置为：UE监听预设类型的下行控制信道的公共搜索空间集的最早的控制资源集的第一个符号，且时间窗口的起始符号为目标符号后的符号。其中，目标符号为：UE第N次传输第一消息所在RO的最后一个符号，或者，UE第N次传输上行数据信道所在PO的最后一个符号。
本申请实施例提供一种重复传输装置，由于重复传输装置在随机接入过程中进行第一消息的重复传输的情况下，重复传输装置可以在完成N次重复传输之后，开启第二消息的时间窗口，以接收网络设备发送的第二消息，即第二消息的接收时机是在完成N次重复传输之后，因此可以避免重复传输装置无法获知第二消息的接收时机的问题，从而可以保证重复传输装置接收第二消息的有效性和准确性。
本申请实施例中的重复传输装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、UMPC、上网本或者PDA等，非移动电子设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的重复传输装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
本申请实施例提供的重复传输装置能够实现上述方法实施例中UE实现的各个过程，为避免重复，这里不再赘述。
可选地，如图6所示，本申请实施例还提供一种UE 90，包括处理器91，存储器92，存储在存储器92上并可在所述处理器91上运行的程序或指令，该程序或指令被处理器91执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，本申请实施例中的UE包括上述所述的移动电子设备和非移动电子设备。
图7为实现本申请实施例的一种UE的硬件结构示意图。
该UE 100包括但不限于：射频单元101、网络模块102、音频输出单元103、输入单元104、传感器105、显示单元106、用户输入单元107、接口单元108、存储器109、以及处理器110等部件。
本领域技术人员可以理解，UE 100还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的UE结构并不构成对UE的限定，UE可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
其中，处理器110，用于在完成第一消息的N次重复传输之后，开启接收第二消息的 时间窗口；其中，第一消息为UE在随机接入过程中发送的消息，第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
本申请实施例提供一种UE，由于UE在随机接入过程中进行第一消息的重复传输的情况下，UE可以在完成N次重复传输之后，开启第二消息的时间窗口，以接收网络设备发送的第二消息，即第二消息的接收时机是在完成N次重复传输之后，因此可以避免UE无法获知第二消息的接收时机的问题，从而可以保证UE接收第二消息的有效性和准确性。
应理解的是，本申请实施例中，输入单元104可以包括图形处理器(Graphics Processing Unit，GPU)1041和麦克风1042，图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元106可包括显示面板1061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板1061。用户输入单元107包括触控面板1071以及其他输入设备1072。触控面板1071，也称为触摸屏。触控面板1071可包括触摸检测装置和触摸控制器两个部分。其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。存储器109可用于存储软件程序以及各种数据，包括但不限于应用程序和操作系统。处理器110可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器110中。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的UE中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者 是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (28)

  1. 一种重复传输方法，所述方法包括：
    用户设备UE在完成第一消息的N次重复传输之后，开启接收第二消息的时间窗口；
    其中，所述第一消息为所述UE在随机接入过程中发送的消息，所述第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
  2. 根据权利要求1所述的方法，其中，所述第一消息为所述UE在两步随机接入过程中发送的MSG-A，所述第二消息为网络设备在两步随机接入过程中发送的MSG-B；
    或者，
    所述第一消息为所述UE在四步随机接入过程中发送的MSG-1，所述第二消息为网络设备在四步随机接入过程中发送的MSG-2；
    或者，
    所述第一消息为所述UE在四步随机接入过程中发送的MSG-3，所述第二消息为网络设备在四步随机接入过程中发送的MSG-4。
  3. 根据权利要求1或2所述的方法，其中，N为网络设备配置的，或者预定义的，或者协议约定的；
    N小于或等于预设次数，所述预设次数为网络设备配置的所述第一消息的最大传输次数。
  4. 根据权利要求3所述的方法，其中，N小于所述预设次数；
    所述开启接收第二消息的时间窗口之后，所述方法还包括：
    所述UE在所述时间窗口内接收到所述第二消息之后，停止重复传输所述第一消息。
  5. 根据权利要求4所述的方法，其中，所述UE在所述时间窗口内接收到所述第二消息之后，停止重复传输所述第一消息，包括：
    所述UE在所述时间窗口内接收到所述第二消息开始后的第一时长之后，停止重复传输所述第一消息；
    其中，所述第一时长包括以下至少一项：下行数据信道处理时间的第一预设个数的符号对应的时间、上行数据信道准备时间的第二预设个数的符号对应的时间。
  6. 根据权利要求4或5所述的方法，其中，所述停止重复传输所述第一消息，包括：
    在所述第一消息满足第一条件的情况下，停止重复传输所述第一消息；
    其中，所述第一条件包括以下至少一项：
    所述UE接收到的所述第二消息中的前导序列的标识和所述第一消息使用的前导序列的标识匹配；以及，
    所述UE检测到随机接入-无线网络临时标识RA-RNTI加扰的下行控制信道，且所述下行控制信道中的系统帧号SFN信息与所述第一消息中的前导序列传输的物理随机接入时机对应。
  7. 根据权利要求4或5所述的方法，其中，所述停止重复传输所述第一消息，包括：
    在所述第一消息满足第二条件的情况下，停止重复传输所述第一消息；
    其中，所述第二条件包括以下至少一项：
    媒体访问控制MAC层协议数据单元PDU中包含所述UE的竞争解决标识MAC控制单元CE，且与所述第一消息对应的上行数据信道的公共控制信道-服务数据单元CCCH-SDU匹配；
    所述第一消息中包含小区无线网络临时标识C-RNTI MAC-CE，且所述UE接收到C-RNTI加扰的下行控制信道；以及，
    所述UE检测到所述第二消息对应的RNTI加扰的下行控制信道，且所述下行控制信道中的SFN信息与所述第一消息中的前导序列传输的物理随机接入时机对应。
  8. 根据权利要求3所述的方法，其中，N小于所述预设次数；
    所述开启接收第二消息的时间窗口之后，所述方法还包括：
    所述UE在所述第一消息满足第三条件的情况下，停止重复传输所述第一消息；
    其中，所述第三条件包括以下至少一项：所述UE接收到所述第二消息、所述UE接收到临时的小区无线网络临时标识TC-RNTI调度的所述第一消息。
  9. 根据权利要求8所述的方法，其中，所述第三条件还包括以下至少一项：
    所述第一消息中包含CCCH-SDU；以及，
    所述UE检测到C-RNTI加扰的下行控制信道，且所述第一消息中包含C-RNTI MAC CE。
  10. 根据权利要求9所述的方法，其中，所述第一消息中包含CCCH-SDU；
    所述第三条件还包括：所述UE成功解调所述第二消息，所述第二消息中的MAC PDU包含所述UE的竞争解决标识MAC CE，且所述UE的竞争解决标识MAC CE与所述UE在所述第一消息中传输的CCCH-SDU匹配。
  11. 根据权利要求1或2所述的方法，其中，若所述第一消息为所述UE在两步随机接入过程中发送的消息，则所述UE第N次传输所述第一消息为：第N次传输前导序列或第N次传输上行数据信道。
  12. 根据权利要求1所述的方法，其中，所述时间窗口的起始位置为：所述UE监听预设类型的下行控制信道的公共搜索空间集的最早的控制资源集的第一个符号，且所述时间窗口的起始符号为目标符号后的符号；
    其中，所述目标符号为：所述UE第N次传输所述第一消息所在随机接入时机RO的最后一个符号，或者，所述UE第N次传输上行数据信道所在传输时机PO的最后一个符号。
  13. 一种重复传输装置，所述重复传输装置包括：开启模块；
    所述开启模块，用于在完成第一消息的N次重复传输之后，开启接收第二消息的时间窗口；
    其中，所述第一消息为用户设备UE在随机接入过程中发送的消息，所述第二消息为网络设备在随机接入过程中发送的消息，N为正整数。
  14. 根据权利要求13所述的装置，其中，所述第一消息为所述UE在两步随机接 入过程中发送的MSG-A，所述第二消息为网络设备在两步随机接入过程中发送的MSG-B；
    或者，
    所述第一消息为所述UE在四步随机接入过程中发送的MSG-1，所述第二消息为网络设备在四步随机接入过程中发送的MSG-2；
    或者，
    所述第一消息为所述UE在四步随机接入过程中发送的MSG-3，所述第二消息为网络设备在四步随机接入过程中发送的MSG-4。
  15. 根据权利要求13或14所述的装置，其中，N为网络设备配置的，或者预定义的，或者协议约定的；
    N小于或等于预设次数，所述预设次数为网络设备配置的所述第一消息的最大传输次数。
  16. 根据权利要求15所述的装置，其中，N小于所述预设次数；
    所述重复传输装置还包括：停止模块；
    所述停止模块，用于在所述开启模块开启接收第二消息的时间窗口之后，在所述时间窗口内接收到所述第二消息之后，停止重复传输所述第一消息。
  17. 根据权利要求16所述的装置，其中，所述停止模块，具体用于在所述时间窗口内接收到所述第二消息开始后的第一时长之后，停止重复传输所述第一消息；
    其中，所述第一时长包括以下至少一项：下行数据信道处理时间的第一预设个数的符号对应的时间、上行数据信道准备时间的第二预设个数的符号对应的时间。
  18. 根据权利要求16或17所述的装置，其中，所述停止模块，具体用于在所述第一消息满足第一条件的情况下，停止重复传输所述第一消息；
    其中，所述第一条件包括以下至少一项：
    所述UE接收到的所述第二消息中的前导序列的标识和所述第一消息使用的前导序列的标识匹配；以及，
    所述UE检测到随机接入-无线网络临时标识RA-RNTI加扰的下行控制信道，且所述下行控制信道中的系统帧号SFN信息与所述第一消息中的前导序列传输的物理随机接入时机对应。
  19. 根据权利要求16或17所述的装置，其中，所述停止模块，具体用于在所述第一消息满足第二条件的情况下，停止重复传输所述第一消息；
    其中，所述第二条件包括以下至少一项：
    媒体访问控制MAC层协议数据单元PDU中包含所述UE的竞争解决标识MAC控制单元CE，且与所述第一消息对应的上行数据信道的公共控制信道-服务数据单元CCCH-SDU匹配；
    所述第一消息中包含小区无线网络临时标识C-RNTI MAC-CE，且所述UE接收到C-RNTI加扰的下行控制信道；以及，
    所述UE检测到所述第二消息对应的RNTI加扰的下行控制信道，且所述下行控制信道中的SFN信息与所述第一消息中的前导序列传输的物理随机接入时机对应。
  20. 根据权利要求15所述的装置，其中，N小于所述预设次数；
    所述重复传输装置还包括：停止模块；
    所述停止模块，用于在所述开启模块开启接收第二消息的时间窗口之后，在所述第一消息满足第三条件的情况下，停止重复传输所述第一消息；
    其中，所述第三条件包括以下至少一项：所述UE接收到所述第二消息、所述UE接收到临时的小区无线网络临时标识TC-RNTI调度的所述第一消息。
  21. 根据权利要求20所述的装置，其中，所述第三条件还包括以下至少一项：
    所述第一消息中包含CCCH-SDU；以及，
    所述UE检测到C-RNTI加扰的下行控制信道，且所述第一消息中包含C-RNTI MAC CE。
  22. 根据权利要求21所述的装置，其中，所述第一消息中包含CCCH-SDU；
    所述第三条件还包括：所述UE成功解调所述第二消息，所述第二消息中的MAC PDU包含所述UE的竞争解决标识MAC CE，且所述UE的竞争解决标识MAC CE与所述UE在所述第一消息中传输的CCCH-SDU匹配。
  23. 根据权利要求13或14所述的装置，其中，若所述第一消息为所述UE在两步随机接入过程中发送的消息，则所述UE第N次传输所述第一消息为：第N次传输前导序列或第N次传输上行数据信道。
  24. 根据权利要求13所述的装置，其中，所述时间窗口的起始位置为：所述UE监听预设类型的下行控制信道的公共搜索空间集的最早的控制资源集的第一个符号，且所述时间窗口的起始符号为目标符号后的符号；
    其中，所述目标符号为：所述UE第N次传输所述第一消息所在随机接入时机RO的最后一个符号，或者，所述UE第N次传输上行数据信道所在传输时机PO的最后一个符号。
  25. 一种用户设备UE，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至12中任一项所述的重复传输方法的步骤。
  26. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至12中任一项所述的重复传输方法的步骤。
  27. 一种计算机程序产品，所述程序产品被至少一个处理器执行以实现如权利要求1至12中任一项所述的重复传输方法。
  28. 一种用户设备UE，包括所述UE被配置成用于执行如权利要求1至12中任一项所述的重复传输方法。
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