WO2020220324A1 - 信号发送方法、装置和通信系统 - Google Patents

信号发送方法、装置和通信系统 Download PDF

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Publication number
WO2020220324A1
WO2020220324A1 PCT/CN2019/085333 CN2019085333W WO2020220324A1 WO 2020220324 A1 WO2020220324 A1 WO 2020220324A1 CN 2019085333 W CN2019085333 W CN 2019085333W WO 2020220324 A1 WO2020220324 A1 WO 2020220324A1
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WIPO (PCT)
Prior art keywords
message
contention resolution
uplink
random access
uplink grants
Prior art date
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PCT/CN2019/085333
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English (en)
French (fr)
Inventor
贾美艺
李国荣
路杨
Original Assignee
富士通株式会社
贾美艺
李国荣
路杨
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.)
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Application filed by 富士通株式会社, 贾美艺, 李国荣, 路杨 filed Critical 富士通株式会社
Priority to CN201980095119.2A priority Critical patent/CN113692721A/zh
Priority to JP2021562934A priority patent/JP7306483B2/ja
Priority to PCT/CN2019/085333 priority patent/WO2020220324A1/zh
Publication of WO2020220324A1 publication Critical patent/WO2020220324A1/zh
Priority to US17/488,445 priority patent/US20220022262A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H04W74/0841—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present invention relates to the field of communication, and in particular to a signal sending method, device and communication system.
  • the contention-based random access (CBRA) process is shown in Figure 1. It can also be called 4-step random access, namely In the first step, the terminal device sends a message 1 to the network device, which contains at least a random access preamble (Random Access Preamble); the second step, the network device sends a message 2 to the terminal device, and the message 2 contains at least random access Response (Random Access Response, RAR); the third step, the terminal device sends a message 3 to the network device, which contains at least a scheduled transmission (Scheduled Transmission); the fourth step, the network device sends a contention resolution message to the terminal device, the The contention resolution message includes at least contention resolution (Contention Resolution) information.
  • RAR random access Response
  • FIG. 2 is a schematic diagram of the transmission of message 3 and contention resolution.
  • the Medium Access Control (MAC) entity will be the first symbol after the end of message 3 transmission Start the contention resolution timer (ra-ContentionResolutionTimer) and restart the timer every time a Hybrid Automatic Repeat reQuest (HARQ) message 3 is retransmitted; while the timer is running, the terminal monitors the physical downlink control channel (Physical Downlink Control Channel, PDCCH), regardless of the measurement interval that may occur.
  • PDCCH Physical Downlink Control Channel
  • C-RNTI Cell Radio Network Temporary Identifier, CE is Control Element
  • CE is Control Element
  • the (Radio Resource Control, Radio Resource Control) sublayer initiates and uses C-RNTI to address the PDCCH transmission and includes the newly transmitted UL (UpLink) grant, considers that the contention resolution is successful, and then stops the contention resolution timer; if the message 3 Including CCCH SDU (CCCH is common control channel (common control channel), SDU is service data unit (service Data Unit)) and PDCCH transmission is by TC-RNTI (Temporary Cell Radio Network Temporary Identification, Temporary Cell Radio Network Temporary Identifier) Addressed, if MAC PDU (Ptotocol data
  • TC-RNTI Temporary Cell Radio Network Temporary Identification, Temporary Cell Radio Network Temporary Identifier
  • 3GPP is currently considering or is considering more transmission opportunities for Message 3.
  • the uplink repeat transmission in NR In addition, in order to overcome the possible listen before talk (LBT) failure on the terminal side, the transmission of message 3 needs to be enhanced.
  • Current possible methods include:
  • Method 1 Message 3 in the time domain is repeated
  • Method 2 Carry multiple authorizations in RAR
  • Method 3 Multiple RARs can be received in the same RAR window
  • Method 4 The network configuration terminal sends message 3 in the COT of message 2 initiated by the network.
  • methods 1-3 are all enhanced based on more transmission opportunities.
  • the network provides the terminal with more uplink authorization for message 3 transmission, thereby increasing the possibility of message 3 transmission.
  • embodiments of the present invention provide a method, device, and system for solving competition.
  • a signal sending method which is applied to a terminal device, wherein the method includes:
  • the terminal device receives a random access response, where the random access response is associated with multiple uplink grants;
  • the terminal device uses one or more uplink grants of the multiple uplink grants to send the message 3, wherein at least one uplink grant of the one or more uplink grants is used to send the initial transmission of the message 3.
  • a signal sending method which is applied to a network device, wherein the method includes:
  • the network equipment receives the random access preamble
  • the network device sends a random access response, the random access response is associated with multiple uplink grants; the multiple uplink grants are used for the transmission of message 3, wherein at least one of the multiple uplink grants is used for uplink grants At the beginning of the message 3.
  • a signal sending device configured in a terminal device, wherein the device includes:
  • a first receiving unit which receives a random access response, where the random access response is associated with multiple uplink grants;
  • a sending unit that uses one or more uplink grants of the plurality of uplink grants to send the message 3, wherein at least one uplink grant of the one or more uplink grants is used to send the initial transmission of the message 3.
  • a signal sending device configured in a network device, wherein the device includes:
  • the receiving unit which receives the random access preamble
  • the first sending unit sends a random access response, the random access response is associated with multiple uplink grants; the multiple uplink grants are used for the transmission of message 3, wherein at least one of the multiple uplink grants is uplinked Authorized for the initial transmission of the message 3.
  • a terminal device wherein the terminal device includes the apparatus described in the foregoing third aspect.
  • a network device wherein the network device includes the apparatus described in the foregoing fourth aspect.
  • a communication system includes the network device described in the aforementioned sixth aspect and the terminal device described in the aforementioned fifth aspect.
  • a computer-readable program wherein when the program is executed in a terminal device, the program causes the computer to execute the method described in the foregoing first aspect in the terminal device .
  • a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in the foregoing first aspect in a terminal device.
  • a computer-readable program wherein when the program is executed in a network device, the program causes the computer to execute the method described in the foregoing second aspect in the network device .
  • a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in the foregoing second aspect in a network device.
  • the beneficial effect of the embodiment of the present invention is that according to at least one aspect of the embodiment of the present invention, the transmission of message 3 is guaranteed when the transmission opportunity of message 3 is increased, and the uplink grant corresponding to message 3 is processed.
  • Figure 1 is a schematic diagram of four-step random access
  • Figure 2 is a schematic diagram of message 3 transmission and contention resolution in a four-step random access process
  • Fig. 3 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • Figure 5 is a schematic diagram of the standard description in the initial transmission of message 3;
  • Figure 6 is a schematic diagram of the standard description of UL grant in RAR
  • FIG. 7 is a schematic diagram of the RAR format
  • Figure 8 is a schematic diagram of the MAC sub-header format
  • FIG. 9 is a schematic diagram of the signal transmission method of Embodiment 2.
  • FIG. 10 is a schematic diagram of a signal sending device of Embodiment 3.
  • FIG. 11 is a schematic diagram of a signal sending device of Embodiment 4.
  • FIG. 12 is a schematic diagram of a terminal device of Embodiment 5.
  • FIG. 13 is a schematic diagram of a network device of Embodiment 6.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelations, but they do not indicate the spatial arrangement or temporal order of these elements. These elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having” and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” can refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), and Enhanced Long Term Evolution (LTE-A, LTE-A). Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-A
  • LTE-A LTE-A
  • Advanced Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other currently known or future communication protocols.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head), remote End radio unit (RRU, Remote Radio Unit), relay (relay), or low-power node (such as femto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low-power node such as femto, pico, etc.
  • base station can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be referred to as "Terminal Equipment” (TE, Terminal Equipment).
  • the terminal equipment can be fixed or mobile, and can also be called a mobile station (MS, Mobile Station), terminal, user, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc. Wait.
  • Terminal devices may include but are not limited to the following devices: Cellular Phone, Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, cordless phone , Smart phones, smart watches, digital cameras, etc.
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine-type communication device
  • laptop computer machine-type communication device
  • cordless phone Smart phones
  • smart watches digital cameras, etc.
  • a terminal device may also be a machine or device that performs monitoring or measurement.
  • it may include, but is not limited to: Machine Type Communication (MTC) terminals, Vehicle-mounted communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • FIG. 3 is a schematic diagram of a communication system according to an embodiment of the present invention, which schematically illustrates a case where a terminal device and a network device are taken as an example.
  • the communication system 300 may include: a network device 301 and a terminal device 302.
  • Figure 3 only uses one terminal device as an example for illustration.
  • the network device 301 is, for example, the network device gNB in the NR system.
  • eMBB enhanced mobile broadband
  • mMTC large-scale machine type communication
  • URLLC Ultra-Reliable and Low- Latency Communication
  • the terminal device 302 can send data to the network device 301, for example, using an unauthorized transmission method.
  • the network device 301 can receive data sent by one or more terminal devices 302, and feedback information to the terminal device 302, such as acknowledgement (ACK) information or non-acknowledgement (NACK) information.
  • ACK acknowledgement
  • NACK non-acknowledgement
  • the terminal device 302 can confirm the end of the transmission process according to the feedback information, Alternatively, new data transmission can be performed, or data retransmission can be performed.
  • This embodiment provides a signal sending method, which is applied to a terminal device, such as the terminal device 302 shown in FIG. 3.
  • FIG. 4 is a schematic diagram of the signal sending method of this embodiment. Please refer to FIG. 4.
  • the method includes:
  • Step 401 The terminal device receives a random access response (RAR), and the random access response is associated with multiple uplink grants (UL grants);
  • RAR random access response
  • UL grants multiple uplink grants
  • Step 402 The terminal device uses one or more of the multiple uplink grants to send the message 3, wherein at least one of the one or more uplink grants is used to send the initial message 3 pass.
  • the terminal device uses at least one UL grant to send the initial transmission of message 3, thereby ensuring the transmission of message 3.
  • the aforementioned at least one UL grant may be the first grant in the RAR received first, the first grant in the first received RAR, or the uplink grant included in the RAR
  • the first authorization that comes in time is the first available authorization.
  • the foregoing RAR is associated with multiple UL grants, which may be that one RAR is associated with one UL grant, and the terminal device receives multiple RARs within the RAR receiving window; or, the foregoing RAR is associated with multiple UL grants, or it may be one RAR is associated with multiple UL grants, and the terminal device receives one RAR within the RAR receiving window.
  • the terminal device uses the multiple UL grants to send the message 3, wherein the first UL grant in the multiple UL grants is used to send the initial transmission of the message 3, and the second UL grant in the multiple UL grants
  • the UL grant is used to send the retransmission of the message 3.
  • the first UL grant can be the first authorization in the first received RAR, the first authorization in the first received RAR, or the first authorization in the uplink authorization included in the RAR, from time to time.
  • An incoming grant, that is, the first available grant, and the second UL grant refers to the UL grants other than the first UL grant among multiple UL grants.
  • the description in the existing standard can be "if the uplink grant was received in a Random Access Response" Modified to "if the uplink grant was the first uplink grant received in a Random Access Response"; if the terminal device receives multiple RARs within the RAR receiving window, and each RAR is associated with a UL grant, the existing standard
  • the above description is modified to "if the uplink grant was the first uplink grant received in Random Access Response”.
  • Figure 5 shows the possible description of the standard, where the content of the dashed box is the modified part made according to this embodiment. As mentioned earlier, this part of the content can also be modified to "if the uplink grant was the first uplink grant" received in Random Access Response".
  • the above multiple UL grants can also be regarded as a bundle. Therefore, the description of UL grant in the RAR in the existing standard can be added, for example, "When the MAC entity is configured with multiple" UL grants in Random Access Response, these UL grants are for transmissions of a TB within a bundle of the grant.
  • the first UL grant is for the initial transmission and HARQ retransmissions follow the possible description of the standard 6"a ,
  • the content of the dashed box is the part added according to this embodiment.
  • the terminal device uses the foregoing multiple UL grants to send message 3, where the first UL grant in the multiple UL grants is used for the initial transmission of the message 3, and the second UL grant in the multiple UL grants grant is also used for the initial transmission of message 3.
  • the priority between the initial transmission of message 3 and the retransmission of message 3 by using the multiple UL grants can be that the priority of the subsequent message 3 is higher, or it can be the priority of message 3.
  • the priority of the initial transmission is higher than the priority of the retransmission of message 3.
  • 'later arrival' refers to later in time, that is, when there is a conflict between the UL grant corresponding to the dynamically scheduled retransmission corresponding to the first UL grant included in the RAR and the second UL grant included in the RAR .
  • the HARQ process can instruct the physical layer to generate transmission according to the UL grant that arrives later.
  • the above-mentioned conflicts can also be avoided through network equipment (such as Smart gNB).
  • the network equipment avoids the dynamically scheduled retransmission of the UL grant corresponding to the first UL grant included in the RAR through scheduling and the RAR includes The conflict between the second UL grant.
  • each UL grant can correspond to a HARQ process ID
  • the terminal device can send the initial transmission of message 3 according to the HARQ process ID corresponding to each UL grant, and the HARQ process ID corresponding to each UL grant can be included in the above RAR. , Either pre-configured or calculated by the terminal device.
  • each HARQ process ID can be distinguished from the scope. For example, CG uses HARQ process ID 4 ⁇ 7, and message 3 uses HARQ process ID 0 ⁇ 3. It is just an example, and this embodiment is not limited to this.
  • the above-mentioned corresponding may also be an association (associate), which is collectively referred to as a correspondence for the convenience of description.
  • the HARQ process ID corresponding to each UL grant may be included in the above-mentioned RAR.
  • the RAR format can be modified so that the RAR contains the HARQ process ID corresponding to the UL grant.
  • Figure 7 is a schematic diagram of the RAR format. As shown in Figure 7, the RAR format includes not only the UL grant, but also The HARQ process ID is included. In addition, in Figure 7, the meaning of R and TAC can refer to the prior art.
  • the above HARQ process ID may be indicated by some bits of the UL grant included in the RAR. For example, for a 27-bit UL grant, 4 bits can be used to indicate its corresponding HARQ process ID.
  • the HARQ process ID corresponding to each UL grant can also be indicated through the MAC subheader.
  • FIG. 8 is a schematic diagram of the MAC subheader. As shown in FIG. 8, the HARQ process ID is indicated in the MAC subheader. In FIG. 8, I is used to indicate whether the subheader is 1 byte or 2 bytes, and the meaning of R, E, T, and RAPID can refer to the prior art.
  • the above-mentioned two indication modes in Fig. 7 and Fig. 8 are only examples, and these two modes can also be used in combination.
  • the process ID of each UL grant may be pre-configured.
  • HARQ process ID 0 ⁇ A are used for message 3 transmission, and A can be any integer greater than 0 and less than 16.
  • the network device configures a set of HARQ process IDs for message 3 transmission, which may or may not include 0; when the number of configured process IDs is the same as the number of UL grants in the RAR, the two correspond one-to-one; When the number of UL grants is greater than the number of configured process IDs, the HARQ process IDs can be used sequentially and cyclically or mapped according to certain rules. For example, UL grants with the same symbol or time slot starting at the time use the same HARQ process ID.
  • the above-mentioned pre-configuration can be implemented through a broadcast message and/or through an RRC dedicated message, and the configuration information of the RRC dedicated message may cover the information in the broadcast message.
  • the process ID of each UL grant may also be obtained by the terminal device through calculation.
  • the terminal device may calculate the HARQ process ID of each UL grant based on the following formula:
  • CURRENT_symbol is the symbol index of the first transmission moment of an uplink authorization in RAR
  • CURRENT_symbol (SFN ⁇ numberOfSlotsPerFrame ⁇ numberOfSymbolsPerSlot+slot number in the frame ⁇ numberOfSymbolsPerSlot+symbol number in the slot 3);
  • nrofMsg3 indicates the maximum available transmission message number
  • the number of HARQ processes can be predefined, such as 3 or 2, or network configuration, or the number of RARs in the RAR receiving window or the number of UL grants in the RAR; offset is the offset, which is used to The HARQ process ID of the configured UL grant is distinguished.
  • the terminal device may also use at least one of the foregoing multiple UL grants to send the message 3.
  • the terminal device may also use at least one of the foregoing multiple UL grants to send the message 3.
  • the unused UL grant it may be discarded or continue to be used, which will be described separately below.
  • the terminal device receives the contention resolution message, decodes the contention resolution message to obtain the MAC PDU, if the MAC PDU includes the contention resolution ID, and the contention resolution ID does not match the content included or sent in the above message 3. , The terminal device considers that the contention resolution is unsuccessful, and discards the pending or remaining or allocated UL grant received in the RAR.
  • the terminal device can also discard the TC-RNTI received in the RAR and discard the successful decoding The MAC PDU.
  • the terminal device can also discard the dynamically scheduled UL grant, such as the one used for retransmission of message 3. UL grant.
  • multiple terminal devices may use the same TC-RNTI to address the PDCCH, which may cause multiple terminal devices to compete successfully, that is, multiple contention resolution Program.
  • the conditions for unsuccessful contention resolution are the same as those in the previous embodiment.
  • the difference is the behavior of the MAC entity of the terminal device, that is, the terminal device receives the contention resolution message and decodes the contention resolution message to obtain the MAC PDU, If the MAC PDU includes the contention resolution ID, and the contention resolution ID does not match the content included or sent in the message 3, the terminal device considers that the contention resolution is unsuccessful.
  • the MAC entity of the terminal device uses the available uplink authorization to transmit Message 3 instead of discarding the received RAR. UL grant.
  • the terminal device may continue to monitor the PDCCH to receive the contention resolution message.
  • the MAC entity of the terminal device can perform the current behavior when the contention resolution is not successful, that is, perform at least one of the following behaviors: Clear HARQ buffer used for transmission of MAC PDU in the buffer of message 3; increment the preamble transmission counter by 1; if the counter reaches the maximum value +1, indicate the random access problem to the higher layer, if the random access process is a system message request If triggered, it is considered that the random access process is completed but not successful; if the random access process is not completed, return to the random access resource selection process.
  • the terminal device does not discard the TC-RNTI received in the RAR when the condition that the contention resolution is considered unsuccessful is met. In this way, the terminal device can use the stored TC-RNTI to scramble the message 3 to be transmitted, and use the stored TC-RNTI to address the PDCCH and receive possible contention resolution messages.
  • the conditions for unsuccessful contention resolution are modified, and the behavior of the MAC entity of the corresponding terminal device remains unchanged, that is, if there is no UL grant for sending message 3 and the contention resolution timer expires or When the first timer expires, the terminal device discards the TC-RNTI, considers that the contention resolution is unsuccessful, and discards the successfully decoded MAC PDU.
  • the above condition of'contention resolution timer timeout or first timer timeout' is optional, that is, it can also be that if there is no UL grant for sending message 3, the terminal device discards TC-RNTI considers that the contention resolution is unsuccessful and discards the successfully decoded MAC PDU.
  • the above-mentioned first timer may be a timer used by the terminal device to monitor the contention resolution message, that is, the terminal device may monitor the contention resolution message during the running of the first timer, and when the first timer expires, Perform another transmission or transmission attempt of message 3.
  • This embodiment does not limit the name of the first timer.
  • the terminal device can continue to monitor the PDCCH addressed by the current TC-RNTI.
  • the above multiple UL grants are located in the licensed frequency band (NR licensed) or the unlicensed frequency band (NR Unlicensed, NR-U), the MAC entity of the terminal device can start or restart the contention resolution when the transmission or retransmission opportunity of message 3 ends Timer; if message 3 includes CCCH SDU and uses TC-RNTI to address PDCCH transmission, if MAC PDU is successfully decoded, if MAC PDU includes contention resolution ID, and the contention resolution ID matches the one sent in message 3. The terminal device stops the contention resolution timer, that is, the contention resolution is successful.
  • This embodiment can be used in combination with the previous embodiment or used alone.
  • the foregoing multiple UL grants are located in an unlicensed frequency band, and the MAC entity of the terminal device can start the contention resolution timer when the LBT of the transmission of message 3 succeeds; if the transmission of all message 3 fails and/or the contention resolution timer When the timeout expires, the MAC entity of the terminal device restarts from the random access resource selection process or indicates the random access problem to the higher layer.
  • a new timer (called the first timer) can also be introduced.
  • the MAC entity of the terminal device will end when a transmission of message 3 or a retransmission opportunity ends, regardless of the As a result of the LBT, the first timer is started, and the contention resolution message is monitored during the running of the first timer.
  • the HARQ retransmission scheduling information of message 3 can also be monitored.
  • the terminal The device allows the transmission of message 3.
  • the HARQ retransmission of message 3 can be replaced with "PDCCH addressed using a specific TC-RNTI".
  • the specific TC-RNTI refers to the storage of the terminal device, or the received RAR allocated to the terminal device itself.
  • transmission that is, "terminal device sending”
  • MAC media access control
  • This transmission attempt may fail due to LBT failure or power control.
  • the MAC entity is for an uplink authorization, there will be a message 3 initial transmission or message 3 retransmission, and then generate a TB, and then instruct the physical layer to transmit. Therefore, the above "transmission” can also be replaced with "MAC generates a TB '.
  • the contention resolution message may also include a new C-RNTI.
  • the terminal equipment can use the C-RNTI. Address the PDCCH as its own C-RNTI.
  • the terminal device can reasonably process multiple uplink authorizations provided by the network device, which improves the reliability of random access.
  • This embodiment provides a signal sending method, which is applied to a network device, and is a processing on the network side corresponding to the method in Embodiment 1, wherein the same content as in Embodiment 1 will not be repeated.
  • FIG. 9 is a schematic diagram of the signal sending method of this embodiment. As shown in FIG. 9, the method includes:
  • Step 901 The network device receives a random access preamble (RA preamble);
  • Step 902 The network device sends a random access response (RAR), the random access response is associated with multiple uplink grants (UL grants); the multiple uplink grants are used for the transmission of message 3, where the multiple At least one of the two uplink grants is used for the initial transmission of the message 3.
  • RAR random access response
  • UL grants multiple uplink grants
  • the above-mentioned RAR is associated with multiple UL grants, which means that one RAR is associated with one UL grant, and the network device sends multiple RARs within the RAR receiving window; or, one RAR is associated with multiple UL grants.
  • UL grant the network device sends one or more RARs within the RAR receiving window. I won't repeat them here.
  • the first UL grant among the multiple UL grants is used for the initial transmission of message 3
  • the second UL grant among the multiple UL grants is used for the retransmission of message 3.
  • the first UL grant among the multiple UL grants is used for the initial transmission of message 3
  • the second UL grant among the multiple UL grants is also used for the message 3 First pass.
  • the second UL grant and the UL grant corresponding to the retransmission of the message 3 corresponding to the first UL grant may occupy different time domain resources. Therefore, the conflict between the UL grant corresponding to the dynamic scheduling retransmission corresponding to the first UL grant included in the RAR and the second UL grant included in the RAR can be avoided.
  • the above-mentioned RAR may include the HARQ process ID corresponding to the UL grant, and the HARQ process corresponding to the HARQ process ID is used for the transmission of the message 3 corresponding to the UL grant.
  • the network device can also send configuration information that configures the HARQ process ID corresponding to the UL grant. If the number of HARQ process IDs is the same as the number of multiple UL grants, Then the HARQ process ID can have a one-to-one correspondence with the multiple UL grants; if the number of the HARQ process ID is less than the number of the multiple UL grants, the HARQ process ID and the multiple UL grants can be'mapped' according to a predetermined rule ,
  • the “mapping” here can also mean “correspondence”.
  • the network device may also listen for message 3 on one of the foregoing multiple UL grants; if message 3 is received and message 3 includes the first contention resolution ID, the network device may send a contention resolution message, The contention resolution message includes a second contention resolution ID, and the second contention resolution ID is the same as the first contention resolution ID included in the message 3.
  • the above-mentioned “monitoring” may also be “receiving” or “trying to receive”. For the convenience of description, this embodiment is described as “monitoring”. In the following description, the same expression has the same meaning.
  • the network device may stop monitoring the message 3 on the suspended or remaining or allocated UL grants among the multiple UL grants. In addition, the network device can also stop monitoring the message 3 on the dynamically scheduled UL grant.
  • the network device may also use the suspended or remaining or allocated UL grants among the multiple UL grants for data transmission.
  • data transmission includes receiving, as well as scheduling terminal equipment to send signals.
  • the network device may also monitor message 3 on the first UL grant; if After receiving message 3, and the message 3 includes the first contention resolution ID, the network device may also send a contention resolution message, the contention resolution message includes the second contention resolution ID, and the second contention resolution ID is the same as the first contention included in the message 3. Solve the same ID.
  • the network device after receiving message 3, if there is a suspended or remaining or allocated first UL grant among the multiple UL grants, and the second timer is running, the network device is on the first UL grant Monitor message 3; if message 3 is received and message 3 includes the first contention resolution ID, the network device sends a contention resolution message, the contention resolution message includes the second contention resolution ID, and the second contention resolution ID is the same as that included in message 3. The first contention resolution ID is the same.
  • the network device may stop listening for message 3; or, if the foregoing second timer expires, The network device can stop monitoring the message 3 on the first UL grant.
  • the network device may run the aforementioned second timer; and the duration of the second timer is the same as the contention resolution timer.
  • the network device can also run a first timer; when the network device receives message 3, it can start the first timer, and the network device sends a contention resolution message during the running of the first timer; or When a transmission or retransmission opportunity of Message 3 ends, the device starts the first timer, and the network device sends the HARQ retransmission scheduling information of Message 3 during the running of the first timer; when the first timer exceeds From time to time, start receiving message 3 transmission.
  • the first timer it has been described in Embodiment 1, and will not be repeated here.
  • the aforementioned contention resolution message may also include a C-RNTI, and the C-RNTI may be used to identify the terminal device.
  • the terminal device can reasonably process multiple uplink authorizations provided by the network device, which improves the reliability of random access.
  • This embodiment provides a signal sending device, which is configured in a terminal device. Since the principle of the device to solve the problem is similar to the method of embodiment 1, the specific implementation can refer to embodiment 1, and the same content will not be repeated. Description.
  • FIG. 10 is a schematic diagram of the signal sending device of this embodiment. As shown in FIG. 10, the device 1000 includes:
  • a receiving unit 1001 which receives a random access response, where the random access response is associated with multiple uplink grants;
  • a sending unit 1002 which uses one or more of the plurality of uplink grants to send the message 3, wherein at least one of the one or more uplink grants is used to send the initial transmission of the message 3 .
  • the foregoing random access response is associated with multiple uplink grants, which means that the receiving unit 1001 receives multiple random access responses within the random access response receiving window and receives multiple random access responses.
  • the random access response is associated with one uplink grant; or, the receiving unit 1001 receives a random access response within the random access response receiving window, and the random access response is associated with multiple uplink grants.
  • the sending unit 1002 uses the aforementioned multiple uplink grants to send the message 3, wherein the first uplink grant in the multiple uplink grants is used to send the initial transmission of the message 3, and the multiple uplink grants The second uplink authorization in is used to send message 3 retransmission.
  • the sending unit 1002 uses the aforementioned multiple uplink grants to send the message 3, wherein the first uplink grant in the multiple uplink grants is used for the initial transmission of the message 3, and the multiple uplink grants The second uplink authorization in is also used for the initial transmission of message 3.
  • the priority relationship between the initial transmission of message 3 and the retransmission of message 3 is: the priority of the subsequent message 3 is higher; or the priority of the initial transmission of message 3 is higher than that of message 3.
  • the priority of the retransmission is: the priority of the retransmission.
  • each uplink authorization corresponds to a process ID
  • the sending unit 1002 sends the initial transmission of message 3 according to the process ID corresponding to each uplink authorization
  • the process ID corresponding to each uplink authorization is included in the random access response, or Pre-configured, or calculated by the terminal device.
  • the sending unit 1002 uses at least one of the foregoing multiple uplink grants to send the message 3; as shown in FIG. 10, the apparatus 1000 further includes:
  • the first processing unit 1003 which receives the contention resolution message, decodes the contention resolution message to obtain a MAC PDU, if the MAC PDU includes a contention resolution ID, and the contention resolution ID is the same as that included or sent by the message 3 If there is no match, it is considered that the contention resolution is not successful, and the pending or remaining or allocated uplink grant received in the random access response is discarded.
  • the first processing unit 1003 when it is deemed that the contention resolution is unsuccessful, the first processing unit 1003 also discards the dynamically scheduled uplink grant.
  • the sending unit 1002 uses at least one of the foregoing multiple uplink grants to send the message 3; as shown in FIG. 10, the apparatus 1000 further includes:
  • the second processing unit 1004 which receives the contention resolution message, decodes the contention resolution message to obtain a MAC PDU, if the MAC PDU includes a contention resolution ID, and the contention resolution ID is the same as that included or sent by the message 3 If there is no match, the competition is considered unsuccessful.
  • the second processing unit 1004 uses the available uplink authorization to transmit the message 3.
  • the second processing unit 1004 performs at least one of the following actions: clearing the buffer used for the message 3 HARQ buffer for MAC PDU transmission; add 1 to the preamble transmission counter; if the counter reaches the maximum value +1, indicate random access to the higher layer, if the random access process is triggered by a system message request, it is considered random access The process is completed but not successful; if the random access process is not completed, return to the random access resource selection process.
  • the second processing unit 1004 does not discard the TC-RNTI received in the random access response.
  • the sending unit 1002 uses at least one of the foregoing multiple uplink grants to send the message 3; as shown in FIG. 10, the apparatus 1000 further includes:
  • the third processing unit 1005 if there is no available uplink authorization for sending the message 3, and the contention resolution timer expires or the first timer expires, the third processing unit 1005 discards the TC received in the random access response -RNTI, considers that the contention resolution is unsuccessful and discards the successfully decoded MAC PDU.
  • the sending unit 1002 uses at least one of the foregoing multiple uplink grants to send the message 3; as shown in FIG. 10, the apparatus 1000 further includes:
  • the fourth processing unit 1006 if there is no available uplink authorization for sending the message 3, the fourth processing unit 1006 discards the TC-RNTI received in the random access response, considers that the contention resolution is not successful, and discards the successful decoding The MAC PDU.
  • the foregoing multiple uplink authorizations are located in a licensed frequency band or an unlicensed frequency band.
  • the apparatus 1000 further includes:
  • the fifth processing unit 1007 which starts or restarts the contention resolution timer when the transmission or retransmission opportunity of message 3 ends;
  • message 3 includes CCCH SDU and TC-RNTI is used to address PDCCH transmission;
  • the fifth processing unit 1007 stops the contention resolution timer.
  • the apparatus 1000 further includes:
  • the sixth processing unit 1008 which starts the contention resolution timer when the LBT of the transmission of the message 3 is successful
  • the sixth processing unit 1008 restarts the random access resource selection process or indicates the random access problem to the higher layer.
  • the apparatus 1000 further includes:
  • the seventh processing unit 1009 which starts a first timer when a transmission or a retransmission opportunity of message 3 ends; monitors the contention resolution message during the running of the first timer, and monitors the HARQ retransmission of the message 3
  • the scheduling information allows the transmission or transmission attempt of message 3 when the first timer expires.
  • the aforementioned contention resolution message may include a C-RNTI, and the terminal device may use the C-RNTI as its own C-RNTI.
  • the terminal device can reasonably process multiple uplink authorizations provided by the network device, which improves the reliability of random access.
  • This embodiment also provides a signal sending device, which is configured in a network device. Since the principle of the device to solve the problem is similar to the method in embodiment 2, the specific implementation can refer to embodiment 2, and the content is no longer the same. Repeat the description.
  • FIG. 11 is a schematic diagram of a signal sending device 1100 of this embodiment. As shown in FIG. 11, the device 1100 includes:
  • the receiving unit 1101 which receives the random access preamble
  • the first sending unit 1102 sends a random access response, where the random access response is associated with multiple uplink grants; the multiple uplink grants are used for the transmission of message 3, wherein at least one of the multiple uplink grants
  • the uplink authorization is used for the initial transmission of the message 3.
  • that the random access response is associated with multiple uplink grants means that one random access response is associated with one uplink grant, and the network device sends multiple random access responses within the random access response receiving window ; Or, one random access response is associated with multiple uplink grants.
  • the multiple uplink grants are used for the transmission of message 3, wherein the first uplink grant among the multiple uplink grants is used for the initial transmission of the message 3, and the multiple uplink grants The second uplink authorization of is used for retransmission of the message 3.
  • the plurality of uplink grants are used for the transmission of message 3, wherein the first uplink grant among the plurality of uplink grants is used for the initial transmission of message 3, and The second uplink authorization is also used for the initial transmission of message 3.
  • the second uplink grant and the uplink grant corresponding to the retransmission of the message 3 corresponding to the first uplink grant may occupy different time domain resources.
  • the random access response may include the HARQ process ID corresponding to the uplink grant, and the HARQ process corresponding to the HARQ process ID is used for the transmission of the message 3 corresponding to the uplink grant.
  • the apparatus 1100 may further include:
  • the second sending unit 1103 sends configuration information that configures the HARQ process ID corresponding to the uplink grant, and if the number of HARQ process IDs is the same as the number of the multiple uplink grants, the HARQ process The ID corresponds to the multiple uplink grants one-to-one; if the number of the HARQ process ID is less than the number of the multiple uplink grants, the HARQ process ID and the multiple uplink grants are mapped according to a predetermined rule.
  • the apparatus 1100 may further include:
  • the first sending unit 1102 sends a contention resolution message, the contention resolution message includes a second contention resolution ID, and the second contention resolution
  • the resolution ID is the same as the first contention resolution ID included in the message 3.
  • the apparatus 1100 may further include:
  • the first processing unit 1105 stops monitoring the message 3 on the pending or remaining or allocated uplink grants among the plurality of uplink grants.
  • the first processing unit 1105 may also stop monitoring the message 3 on the dynamically scheduled uplink grant.
  • the apparatus 1100 may further include:
  • the second processing unit 1106 uses the suspended or remaining or allocated uplink grants among the multiple uplink grants to perform data transmission.
  • the monitoring unit 1104 may monitor the message 3 on the first uplink grant; if received The message 3, and the message 3 includes a first contention resolution ID, the first sending unit 1102 may send a contention resolution message, the contention resolution message includes a second contention resolution ID, and the second contention resolution ID It is the same as the first contention resolution ID included in the message 3.
  • the monitoring unit 1104 may monitor on the first uplink grant The message 3; if the message 3 is received and the message 3 includes a first contention resolution ID, the first sending unit 1102 may send a contention resolution message, and the contention resolution message includes a second contention resolution ID, And the second contention resolution ID is the same as the first contention resolution ID included in the message 3.
  • the monitoring unit 1104 may stop monitoring the message 3; or if the second timer expires, the monitoring unit 1104 It is possible to stop monitoring the message 3 on the first uplink grant.
  • the apparatus 1100 may further include:
  • the third processing unit 1107 runs the second timer; the duration of the second timer is the same as the contention resolution timer.
  • the apparatus 1100 may further include:
  • the fourth processing unit 1108 runs the first timer; when the monitoring unit 1104 receives the message 3, the fourth processing unit 1108 starts the first timer, and the first sending unit 1102
  • the contention resolution message is sent during the running of the first timer; or the fourth processing unit 1108 starts the first timer when one transmission or retransmission opportunity of the message 3 ends, and the first sending unit 1102 sends the HARQ retransmission scheduling information of the message 3 during the running of the first timer; the monitoring unit 1104 starts to receive the transmission of the message 3 when the first timer expires.
  • the contention resolution message may also include a C-RNTI, and the C-RNTI is used to identify terminal equipment.
  • the terminal equipment can reasonably process multiple uplink authorizations provided by the network equipment, which improves the reliability of random access.
  • An embodiment of the present invention also provides a terminal device, where the terminal device includes the device described in Embodiment 3.
  • Fig. 12 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 1200 may include a central processing unit 1201 and a memory 1202; the memory 1202 is coupled to the central processing unit 1201. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunication functions or other functions.
  • the function of the device described in embodiment 3 can be integrated into the central processing unit 1201, and the central processing unit 1201 realizes the function of the device described in embodiment 3, and the device described in embodiment 3 The functions of is incorporated here, so I won’t repeat them here.
  • the device described in Embodiment 3 can be configured separately from the central processing unit 1201.
  • the device described in Embodiment 3 can be configured as a chip connected to the central processing unit 1201, and the central processing unit 1201 Control to realize the function of the device described in the third embodiment.
  • the terminal device 1200 may further include: a communication module 1203, an input unit 1204, an audio processing unit 1205, a display 1206, and a power supply 1207. It is worth noting that the terminal device 1200 does not necessarily include all the components shown in FIG. 12; in addition, the terminal device 1200 may also include components not shown in FIG. 12, which can refer to the prior art.
  • the central processing unit 1201 is sometimes called a controller or operating control, and may include a microprocessor or other processor devices and/or logic devices.
  • the central processing unit 1201 receives inputs and controls various components of the terminal device 1200. Operation of components.
  • the memory 1202 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices.
  • the above information related to the configuration can be stored, in addition to the program that executes the related information.
  • the central processing unit 1201 can execute the program stored in the memory 1202 to implement information storage or processing.
  • the functions of other components are similar to the existing ones, so I won't repeat them here.
  • Each component of the terminal device 1200 can be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the present invention.
  • An embodiment of the present invention also provides a network device, where the network device includes the device described in Embodiment 4.
  • FIG. 13 is a schematic diagram of an implementation manner of a network device according to an embodiment of the present invention.
  • the network device 1300 may include: a central processing unit (CPU) 1301 and a memory 1302; the memory 1302 is coupled to the central processing unit 1301.
  • the memory 1302 can store various data; in addition, it also stores information processing programs, which are executed under the control of the central processing unit 1301 to receive various information sent by the terminal device and send various information to the terminal device.
  • the functions of the device described in embodiment 4 can be integrated into the central processing unit 1301, and the central processing unit 1301 implements the functions of the device described in embodiment 4, among which the device described in embodiment 4 The functions of is incorporated here, so I won’t repeat them here.
  • the device described in Embodiment 4 can be configured separately from the central processing unit 1301.
  • the device described in Embodiment 4 can be a chip connected to the central processing unit 1301, which is connected to the central processing unit 1301. Control to realize the function of the device described in the fourth embodiment.
  • the network device 1300 may further include: a transceiver 1303, an antenna 1304, etc.; wherein the functions of the above-mentioned components are similar to those in the prior art, and will not be repeated here. It is worth noting that the network device 1300 does not necessarily include all the components shown in FIG. 13; in addition, the network device 1300 may also include components not shown in FIG. 13, and the prior art can be referred to.
  • the terminal device can reasonably process multiple uplink authorizations provided by the network device, which improves the reliability of random access.
  • An embodiment of the present invention also provides a communication system, which includes a network device and a terminal device.
  • the network device is, for example, the network device 1300 described in Embodiment 6, and the terminal device is, for example, the terminal device 1200 described in Embodiment 5.
  • the terminal device is, for example, a UE served by gNB.
  • the terminal device also includes the conventional composition and functions of the terminal device. As described in Embodiment 5, it is not here. Repeat it again.
  • the network device may be, for example, the gNB in NR.
  • the network device In addition to the functions of the device described in Embodiment 4, it also includes the regular composition and functions of the network device. As described in Embodiment 6, here No longer.
  • the terminal device can reasonably process multiple uplink authorizations provided by the network device, which improves the reliability of random access.
  • the embodiment of the present invention also provides a computer-readable program, wherein when the program is executed in the terminal device, the program causes the computer to execute the method described in Embodiment 1 in the terminal device.
  • An embodiment of the present invention also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in Embodiment 1 in a terminal device.
  • the embodiment of the present invention also provides a computer-readable program, wherein when the program is executed in the network device, the program causes the computer to execute the method described in Embodiment 2 in the network device.
  • An embodiment of the present invention also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in Embodiment 2 in a network device.
  • the above devices and methods of the present invention can be implemented by hardware, or by hardware combined with software.
  • the present invention relates to such a computer-readable program, when the program is executed by a logic component, the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, etc.
  • the present invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, and the like.
  • the method/device described in conjunction with the embodiments of the present invention can be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in the figure may correspond to each software module of the computer program flow or each hardware module.
  • These software modules can respectively correspond to the steps shown in the figure.
  • These hardware modules can be implemented by curing these software modules by using a field programmable gate array (FPGA), for example.
  • FPGA field programmable gate array
  • the software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described in the drawings can be implemented as general-purpose processors, digital signal processors (DSPs) for performing the functions described in the present invention. ), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof.
  • DSPs digital signal processors
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, and multiple micro-processing DSP, one or more microprocessors or any other device combined with DSP communication.
  • a signal sending device configured in a terminal device, wherein the device includes:
  • a receiving unit which receives a random access response, where the random access response is associated with multiple uplink grants;
  • a sending unit that uses one or more uplink grants of the plurality of uplink grants to send the message 3, wherein at least one uplink grant of the one or more uplink grants is used to send the initial transmission of the message 3.
  • the receiving unit receives multiple random access responses within the random access response receiving window and receives multiple random access responses, and each random access response is associated with an uplink grant; or
  • the receiving unit receives a random access response within the random access response receiving window, and the random access response is associated with multiple uplink grants.
  • the sending unit uses the multiple uplink grants to send the message 3, wherein the first uplink grant in the multiple uplink grants is used to send the message 3
  • the second uplink grant among the multiple uplink grants is used to send the retransmission of the message 3.
  • the sending unit uses the multiple uplink grants to send the message 3, wherein the first uplink grant of the multiple uplink grants is used for the initial of the message 3.
  • the second uplink grant among the multiple uplink grants is also used for the initial transmission of the message 3.
  • the latter message 3 has a higher priority
  • the priority of the initial transmission of the message 3 is higher than the priority of the retransmission of the message 3.
  • each uplink authorization corresponds to a process ID
  • the sending unit sends the initial transmission of the message 3 according to the process ID corresponding to each uplink authorization, and the process ID corresponding to each uplink authorization It is included in the random access response, or is pre-configured, or calculated by the terminal device.
  • the first processing unit which receives the contention resolution message, decodes the contention resolution message to obtain a MAC PDU, if the MAC PDU includes a contention resolution ID, and the contention resolution ID is different from that included or sent in the message 3. If it matches, it is deemed that the contention resolution is unsuccessful, and the pending or remaining or allocated uplink grants received in the random access response are discarded.
  • the sending unit uses at least one of the plurality of uplink grants to send the message 3; the device further includes:
  • the second processing unit which receives the contention resolution message, decodes the contention resolution message to obtain a MAC PDU, if the MAC PDU includes a contention resolution ID, and the contention resolution ID is different from that included or sent in the message 3. If it matches, the competition is considered unsuccessful.
  • the second processing unit uses the available uplink authorization to transmit the message 3.
  • the second processing unit performs at least one of the following actions: clearing the transmission of the MAC PDU in the buffer used for the message 3 HARQ buffer; add 1 to the preamble transmission counter; if the counter reaches the maximum value +1, indicate the random access problem to the higher layer, if the random access process is triggered by a system message request, the random access process is considered to be completed but not successful ; If the random access process is not completed, return to the random access resource selection process.
  • the sending unit uses at least one of the plurality of uplink grants to send the message 3; the device further includes:
  • the third processing unit if there is no available uplink authorization for sending the message 3, and the contention resolution timer expires or the first timer expires, the third processing unit discards the random access response received TC-RNTI considers that the contention resolution is not successful, and discards the successfully decoded MAC PDU.
  • the sending unit uses at least one of the plurality of uplink grants to send the message 3; the device further includes:
  • the fourth processing unit if there is no available uplink authorization for sending the message 3, the fourth processing unit discards the TC-RNTI received in the random access response, and considers that the contention resolution is unsuccessful and the discarding is successful Decoded MAC PDU.
  • a fifth processing unit which starts or restarts the contention resolution timer when the transmission or retransmission opportunity of the message 3 ends;
  • the message 3 includes CCCH SDU and TC-RNTI is used to address PDCCH transmission;
  • the fifth processing unit stops the contention resolution timer .
  • the sixth processing unit which starts a contention resolution timer when the LBT of the message 3 transmission is successful
  • the sixth processing unit restarts from the random access resource selection process or indicates the random access problem to the higher layer.
  • a seventh processing unit which starts a first timer when a transmission or a retransmission opportunity of the message 3 ends; monitors the contention resolution message during the running of the first timer, and monitors the HARQ of the message 3 For the retransmission scheduling information, when the first timer expires, the transmission or transmission attempt of the message 3 is allowed.
  • a signal sending device configured in a network device, wherein the device includes:
  • the receiving unit which receives the random access preamble
  • the first sending unit sends a random access response, the random access response is associated with multiple uplink grants; the multiple uplink grants are used for the transmission of message 3, wherein at least one of the multiple uplink grants is uplinked Authorized for the initial transmission of the message 3.
  • One random access response is associated with one uplink grant, and the network device sends multiple random access responses within the random access response receiving window;
  • One random access response is associated with multiple uplink grants.
  • a second sending unit which sends configuration information that configures the HARQ process ID corresponding to the uplink grant, and if the number of HARQ process IDs is the same as the number of the multiple uplink grants, the HARQ process ID There is a one-to-one correspondence with the multiple uplink grants; if the number of HARQ process IDs is less than the number of the multiple uplink grants, the HARQ process IDs and the multiple uplink grants are mapped according to a predetermined rule.
  • a monitoring unit which monitors the message 3 on one of the multiple uplink grants
  • the first sending unit sends a contention resolution message, the contention resolution message includes the second contention resolution ID, and the second contention resolution The ID is the same as the first contention resolution ID included in the message 3.
  • the first processing unit stops monitoring the message 3 on the pending or remaining or allocated uplink grants among the plurality of uplink grants.
  • the first processing unit also stops monitoring the message 3 on the dynamically scheduled uplink grant.
  • the second processing unit uses the suspended or remaining or allocated uplink grants among the plurality of uplink grants to perform data transmission.
  • the monitoring unit monitors the message 3 on the first uplink grant
  • the first sending unit sends a contention resolution message, the contention resolution message includes the second contention resolution ID, and the second contention resolution The ID is the same as the first contention resolution ID included in the message 3.
  • the monitoring unit monitors the message 3 on the first uplink grant
  • the first sending unit sends a contention resolution message, the contention resolution message includes the second contention resolution ID, and the second contention resolution The ID is the same as the first contention resolution ID included in the message 3.
  • the monitoring unit stops monitoring message 3;
  • the monitoring unit stops monitoring the message 3 on the first uplink grant.
  • the third processing unit runs the second timer; the duration of the second timer is the same as the contention resolution timer.
  • the fourth processing unit which runs the first timer
  • the fourth processing unit starts the first timer, and the first sending unit sends a contention resolution message during the running of the first timer; or
  • the fourth processing unit starts the first timer when one transmission or retransmission opportunity of the message 3 ends, and the first sending unit sends the HARQ retransmission of the message 3 during the running of the first timer. Dispatching information;
  • the monitoring unit starts to receive the transmission of the message 3 when the first timer expires.

Abstract

本发明提供了一种信号发送方法、装置和通信系统，所述信号发送方法包括：终端设备接收随机接入响应，所述随机接入响应关联多个上行授权；所述终端设备使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送所述消息3的初传。通过本发明，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。

Description

信号发送方法、装置和通信系统 技术领域
本发明涉及通信领域，特别涉及一种信号发送方法、装置和通信系统。
背景技术
在新无线(NR，New Radio)里，基于竞争的随机接入(contention-based random access，CBRA)过程如图1所示，其也可以称为4步(4-step)随机接入，即第一步，终端设备向网络设备发送消息1，该消息1至少包含随机接入前导码(Random Access Preamble)；第二步，网络设备向终端设备发送消息2，该消息2至少包含随机接入响应(Random Access Response，RAR)；第三步，终端设备向网络设备发送消息3，该消息3至少包含调度的传输(Scheduled Transmission)；第四步，网络设备向终端设备发送竞争解决消息，该竞争解决消息至少包括竞争解决(Contention Resolution)信息。
图2是消息3的传输与竞争解决的示意图，如图2所示，一旦传输了消息3，媒体接入控制(Medium Access Control，MAC)实体将会在消息3传输结束后的第一个符号启动竞争解决定时器(ra-ContentionResolutionTimer)并在每次混合自动重传(Hybrid Automatic Repeat reQuest，HARQ)的消息3重传时重启该定时器；在该定时器运行期间，终端监听物理下行控制信道(Physical Downlink Control Channel，PDCCH)，不管可能发生的测量间隔。
如果消息3里包括了C-RNTI MAC CE(C-RNTI为小区无线网络临时标识(Cell Radio Network Temporary Identifier)，CE为控制单元(Control Element))，也即，如果随机接入过程为了波束失败恢复而发起且使用C-RNTI寻址的PDCCH传输，或者如果随机接入过程由PDCCH order(命令)发起且使用C-RNTI寻址的PDCCH传输，或者如果随机接入过程由MAC子层或RRC(Radio Resource Control，无线资源控制)子层发起且使用C-RNTI寻址PDCCH传输且包括新传输的UL(UpLink，上行)授权，认为竞争解决成功，接着停止竞争解决定时器；如果消息3里包括了CCCH SDU(CCCH为公共控制信道(common control channel)，SDU为服务数据单元(service Data Unit))且PDCCH传输是由TC-RNTI(临时小区无线网络临时标识，Temporary  Cell Radio Network Temporary Identifier)寻址的，如果MAC PDU(Ptotocol data unit，协议数据单元)成功解码，则停止竞争解决定时器。如果竞争解决定时器超时，丢弃TC-RNTI，认为竞争解决未成功。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现，当前3GPP考虑或正在考虑更多的消息3的传输机会。例如，NR里的上行重复传输。另外，为了克服终端侧可能的先听后说(Listen Before Talk，LBT)失败，需要对消息3的传输进行增强。当前可能的方法包括：
方法1：时域上的消息3重复；
方法2：RAR里携带多个授权；
方法3：相同RAR窗内能收到多个RARs；
方法4：网络配置终端在网络发起的消息2的COT内发送消息3。
其中，方法1-3都基于更多的传输机会进行增强，例如，方法2和方法3是网络为终端提供更多用于消息3传输的上行授权，从而增加消息3发送的可能性。
然而，如何处理网络提供的更多的上行授权以及在竞争解决未成功时如何处理剩下的上行授权(pending UL grant)，是需要解决的问题。
为了解决上述问题中的至少一个或者解决其他类似问题，本发明实施例提供了一种竞争解决方法、装置和系统。
根据本发明实施例的第一方面，提供了一种信号发送方法，所述方法应用于终端设备，其中，所述方法包括：
终端设备接收随机接入响应，所述随机接入响应关联多个上行授权；
所述终端设备使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送所述消息3的初传。
根据本发明实施例的第二方面，提供了一种信号发送方法，所述方法应用于网络设备，其中，所述方法包括：
网络设备接收随机接入前导码；
所述网络设备发送随机接入响应，所述随机接入响应关联多个上行授权；所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的至少一个上行授权用于所述消息3的初传。
根据本发明实施例的第三方面，提供了一种信号发送装置，所述装置配置于终端设备，其中，所述装置包括：
第一接收单元，其接收随机接入响应，所述随机接入响应关联多个上行授权；
发送单元，其使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送所述消息3的初传。
根据本发明实施例的第四方面，提供了一种信号发送装置，所述装置配置于网络设备，其中，所述装置包括：
接收单元，其接收随机接入前导码；
第一发送单元，其发送随机接入响应，所述随机接入响应关联多个上行授权；所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的至少一个上行授权用于所述消息3的初传。
根据本发明实施例的第五方面，提供了一种终端设备，其中，所述终端设备包括前述第三方面所述的装置。
根据本发明实施例的第六方面，提供了一种网络设备，其中，所述网络设备包括前述第四方面所述的装置。
根据本发明实施例的第七方面，提供了一种通信系统，所述通信系统包括前述第六方面所述的网络设备和前述第五方面所述的终端设备。
根据本发明实施例的其它方面，提供了一种计算机可读程序，其中当在终端设备中执行所述程序时，所述程序使得计算机在所述终端设备中执行前述第一方面所述的方法。
根据本发明实施例的其它方面，提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在终端设备中执行前述第一方面所述的方法。
根据本发明实施例的其它方面，提供了一种计算机可读程序，其中当在网络设备中执行所述程序时，所述程序使得计算机在所述网络设备中执行前述第二方面所述的方法。
根据本发明实施例的其它方面，提供了一种存储有计算机可读程序的存储介质， 其中所述计算机可读程序使得计算机在网络设备中执行前述第二方面所述的方法。
本发明实施例的有益效果在于：根据本发明实施例的至少一个方面，在增加了消息3的传输机会的情况下，保证了消息3的传输，并对消息3对应的上行授权进行了处理。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本发明实施例的进一步的理解，其构成了说明书的一部分，用于例示本发明的实施方式，并与文字描述一起来阐释本发明的原理。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。在附图中：
图1是四步随机接入的示意图；
图2是四步随机接入过程中消息3的传输和竞争解决的示意图；
图3是本发明实施例的通信系统的示意图；
图4是实施例1的信号发送方法的示意图；
图5是消息3的初传中标准描述方式的一个示意图；
图6是RAR中UL grant的标准描述的一个示意图；
图7是RAR格式的一个示意图；
图8是MAC子头格式的一个示意图；
图9是实施例2的信号发送方法的示意图；
图10是实施例3的信号发送装置的示意图；
图11是实施例4的信号发送装置的示意图；
图12是实施例5的终端设备的示意图；
图13是实施例6的网络设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备，也可以称为“终端设备”(TE，Terminal Equipment)。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
以下通过示例对本发明实施例的场景进行说明，但本发明实施例不限于此。
图3是本发明实施例的通信系统的示意图，示意性说明了以终端设备和网络设备为例的情况，如图3所示，通信系统300可以包括：网络设备301和终端设备302。为简单起见，图3仅以一个终端设备为例进行说明。网络设备301例如为NR系统中的网络设备gNB。
在本发明实施例中，网络设备301和终端设备302之间可以进行现有的业务或者未来可实施的业务。例如，这些业务包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
终端设备302可以向网络设备301发送数据，例如使用免授权传输方式。网络设备301可以接收一个或多个终端设备302发送的数据，并向终端设备302反馈信息，例如确认(ACK)信息或非确认(NACK)信息，终端设备302根据反馈信息可以确认结束传输过程、或者还可以再进行新的数据传输，或者可以进行数据重传。
下面结合附图对本发明的各种实施方式进行说明。这些实施方式只是示例性的，不是对本发明的限制。
实施例1
本实施例提供了一种信号发送方法，该方法应用于终端设备，例如图3所示的终端设备302。
图4是本实施例的信号发送方法的一个示意图，请参照图4，该方法包括：
步骤401：终端设备接收随机接入响应(RAR)，所述随机接入响应关联多个上行授权(UL grant)；
步骤402：所述终端设备使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送上述消息3的初传。
在本实施例中，当网络设备提供了多个UL grant时，终端设备使用其中至少一个UL grant来发送消息3的初传，由此保证了消息3的传输。
在本实施例中，上述至少一个UL grant可以是第一个收到的RAR里的授权，可以是第一个收到的RAR里的第一个授权，也可以是在RAR里包括的上行授权里的、时间上第一个到来的授权，即第一个可用授权。
在本实施例中，上述RAR关联多个UL grant，可以是一个RAR关联一个UL grant，而终端设备在RAR接收窗口内接收多个RAR；或者，上述RAR关联多个UL grant，也可以是一个RAR关联多个UL grant，终端设备在RAR接收窗口内接收一个RAR。
在一个实施方式中，终端设备使用上述多个UL grant发送消息3，其中，该多个 UL grant中的第一UL grant用于发送该消息3的初传，该多个UL grant中的第二UL grant用于发送该消息3的重传。第一UL grant可以是第一个收到的RAR里的授权，可以是第一个收到的RAR里的第一个授权，也可以是在RAR里包括的上行授权里的、从时间上第一个到来的授权，即第一个可用授权，第二UL grant是指多个UL grant中除第一UL grant以外的其他UL grant。
基于本实施方式的方法，如果终端设备在RAR接收窗口内接收到一个RAR，该RAR关联多个UL grant，则可以将现有标准中的描述“if the uplink grant was received in a Random Access Response”修改为“if the uplink grant was the first uplink grant received in a Random Access Response”；如果终端设备在RAR接收窗口内接收到多个RAR，每个RAR关联一个UL grant，则可以将现有标准中的上述描述修改为“if the uplink grant was the first uplink grant received in Random Access Responses”。图5示出了标准可能的描述，其中虚线框的内容即为根据本实施方式所做出的修改部分，如前所述，这部分内容也可以修改为“if the uplink grant was the first uplink grant received in Random Access Responses”。
基于本实施方式的方法，上述多个UL grant也可以看成一个束(bundle)，由此，可以增加对现有标准中RAR里UL grant的描述，例如增加“When the MAC entity is configured with multiple UL grants in Random Access Response,these UL grants are for transmissions of a TB within a bundle of the grant.The first UL grant is for the initial transmission and HARQ retransmissions follow within a bundle.”图6示出了标准可能的描述，其中虚线框的内容即为根据本实施方式增加的部分。
在另一个实施方式中，终端设备使用上述多个UL grant发送消息3，其中，该多个UL grant中的第一UL grant用于消息3的初传，该多个UL grant中的第二UL grant也用于消息3的初传。
在本实施方式中，利用该多个UL grant所做的消息3的初传与消息3的重传之间的优先级可以是后到的消息3的优先级较高，也可以是消息3的初传的优先级高于消息3的重传的优先级。这里，‘后到’是指时间上靠后，即，当RAR里包括的第一UL grant对应的动态调度的重传对应的UL grant与该RAR里包括的第二UL grant之间存在冲突时，HARQ进程可以指示物理层根据后到的UL grant生成传输。
在本实施方式中，也可以通过网络设备(例如Smart gNB)避免上述冲突，例如， 网络设备通过调度避免RAR里包括的第一UL grant对应的动态调度的重传的UL grant与该RAR里包括的第二UL grant之间的冲突。
在本实施方式中，每个UL grant可以对应一个HARQ进程ID，终端设备可以根据各个UL grant对应的HARQ进程ID发送消息3的初传，各个UL grant对应的HARQ进程ID可以包含于上述RAR中，或者是预配置的，或者是终端设备计算获得的。此外，为了避免和配置的授权(Cconfigured Grant，CG)碰撞，可以从范围上对各个HARQ进程ID进行区分，例如，CG使用HARQ进程ID 4～7，消息3使用HARQ进程ID 0～3，上述只是举例说明，本实施例不限于此。在本实施例中，上述对应(correspond)也可以是关联(associate)，为了方便说明，统称为对应。
在本实施方式中，各个UL grant对应的HARQ进程ID可以包含于上述RAR中。
例如，可以通过修改RAR的格式，使得RAR包含相应UL grant对应的HARQ进程ID，图7是RAR的格式的一个示意图，如图7所示，在该RAR的格式中不仅包含UL grant，还包含了HARQ进程ID，此外，在图7中，R和TAC的含义可以参考现有技术。例如，上述HARQ进程ID可以通过RAR包含的UL grant的其中部分比特来指示。例如，对于27个比特的UL grant，可以通过其中4个比特来指示其对应的HARQ进程ID。
再例如，也可以通过MAC子头指示各个UL grant对应的HARQ进程ID，图8是MAC子头的一个示意图，如图8所示，在该MAC子头中指示了HARQ进程ID，此外，在图8中，I用来指示该子头是1个字节还是2个字节，R、E、T、RAPID的含义可以参考现有技术。上述图7和图8的两种指示方式只是举例说明，这两种方式也可以结合使用。
在本实施方式中，各个UL grant的进程ID可以是预配置的。
例如，标准规定HARQ进程ID 0～A用于消息3的传递，A可以是大于0小于16的任意整数。
再例如，网络设备配置一组用于消息3传输的HARQ进程ID，可以包括0，也可以不包括0；当配置的进程ID数与RAR里的UL grant数量相同时，两者一一对应；当UL grant数大于配置的进程ID数时，可以按序循环使用HARQ进程ID，或按照一定规则进行映射，例如时间起始位置在相同符号或时隙的UL grant使用相同的HARQ进程ID。
在本实施方式中，上述预配置可以通过广播消息实现和/或通过RRC专用消息实现，RRC专用消息配置的信息可以覆盖广播消息里的信息。
在本实施方式中，各个UL grant的进程ID还可以由终端设备通过计算获得，例如，终端设备可以基于以下公式计算各个UL grant的HARQ进程ID：
HARQ Process ID＝offset+[floor(CURRENT_symbol)]modulo nrofMsg3
其中，CURRENT_symbol是RAR中一个上行授权的第一个传输时刻的符号索引，CURRENT_symbol＝(SFN×numberOfSlotsPerFrame×numberOfSymbolsPerSlot+slot number in the frame×numberOfSymbolsPerSlot+symbol number in the slot)；nrofMsg3表示传输消息3最大可用的HARQ进程数，可以是预定义的，如3或2等，也可以是网络配置的，或者是RAR接收窗内RAR数或RAR里的UL grant数；offset为偏移量，其用于与配置的UL grant的HARQ进程ID区分开。
通过本实施例的前述实施方式，解决了如何利用网络设备提供的多个上行授权发送消息3的问题。
在本实施例中，终端设备也可以使用上述多个UL grant的至少一个发送消息3，对于没有使用的UL grant，可以丢弃，也可以继续使用，下面分别进行说明。
在一个实施方式中，终端设备接收竞争解决消息，对该竞争解决消息进行解码得到MAC PDU，如果该MAC PDU包括竞争解决ID，并且该竞争解决ID与上述消息3里包括的或发送的不匹配，则终端设备认为竞争解决未成功，丢弃(discard)该RAR中收到的挂起(pending)或剩余(remaining)或分配(allocated)的UL grant。
在本实施方式中，竞争解决未成功的情况下，除了上述RAR中收到的上述UL grant，与现有技术类似，终端设备还可以丢弃RAR中收到的TC-RNTI，并丢弃成功译码的MAC PDU。
在本实施方式中，竞争解决未成功的情况下，除了上述RAR中收到的上述UL grant，与现有技术不同，终端设备还可以丢弃动态调度的UL grant，例如用于消息3重传的UL grant。
在本实施方式中，‘丢弃’也可以用‘释放(release)’、‘认为不可用(consider unavailable)’等替换。并且，在本实施例中，相同表述具有相同含义，不再重复说明。
在本实施例中，对于没有使用的UL grant，如果继续使用，多个终端设备有可能使用相同的TC-RNTI寻址PDCCH，由此可能发生多个终端设备竞争成功的情况，即 多竞争解决方案。
在一个实施方式中，认为竞争解决未成功的条件与前一实施方式相同，不同的是终端设备的MAC实体的行为，即，终端设备接收竞争解决消息，对竞争解决消息进行解码得到MAC PDU，如果MAC PDU包括竞争解决ID，并且竞争解决ID与消息3包括的或发送的不匹配，则终端设备认为竞争解决未成功。
在本实施方式中，如果竞争解决未成功并且有可用的用于发送消息3的上行授权，则终端设备的MAC实体使用可用的上行授权进行消息3的传输，而不是丢弃RAR中收到的该UL grant。此外，终端设备还可以继续监听PDCCH，以接收上述竞争解决消息。
在本实施方式中，如果竞争解决未成功并且没有可用的用于发送消息3的UL grant，终端设备的MAC实体可以执行当前竞争解决未成功时的行为，即执行以下行为的至少一种：清空用于消息3的buffer里的MAC PDU的传输的HARQ buffer；将前导码传输计数器加1；如果该计数器达到最大值+1，向高层指示随机接入问题，若随机接入过程是系统消息请求触发的，认为随机接入过程完成但未成功；如果随机接入过程未完成，回到随机接入资源选择过程。
在本实施方式中，当满足认为竞争解决未成功的条件时，终端设备不丢弃RAR中收到的TC-RNTI。这样，终端设备可以使用存储的TC-RNTI加扰要传输的消息3，并使用存储的TC-RNTI寻址PDCCH，接收可能的竞争解决消息。
在另一个实施方式中，修改了竞争解决未成功的条件，相应的终端设备的MAC实体的行为不变，即，如果没有可用的用于发送消息3的UL grant，并且竞争解决计时器超时或第一定时器超时，则终端设备丢弃TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
在本实施方式中，上述‘竞争解决计时器超时或第一定时器超时’的条件是可选的，即，也可以是，如果没有可用的用于发送消息3的UL grant，则终端设备丢弃TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
在本实施方式中，上述第一定时器可以是终端设备用于监听竞争解决消息的定时器，即，终端设备可以在第一定时器运行期间监听竞争解决消息，在第一定时器超时时，进行消息3的又一次传输或传输尝试。本实施例对第一定时器的叫法不作限制。
在本实施例中，对于多竞争解决方案，终端设备可以继续监听使用当前TC-RNTI 寻址的PDCCH。
例如，上述多个UL grant位于授权频段(NR licensed)或非授权频段(NR Unlicensed，NR-U)，终端设备的MAC实体可以在消息3的传输或重传机会结束时，启动或重启竞争解决定时器；如果消息3里包括了CCCH SDU并且使用TC-RNTI寻址PDCCH传输，如果成功译码了MAC PDU，如果MAC PDU包括竞争解决ID，并且该竞争解决ID与消息3里发送的匹配，则终端设备停止竞争解决定时器，即竞争解决成功。该实施方式可以与前述实施方式结合使用，也可以单独使用。
再例如，上述多个UL grant位于非授权频段，终端设备的MAC实体可以在消息3的传输的LBT成功时，启动竞争解决定时器；如果所有消息3的传输都失败和/或竞争解决定时器超时，终端设备的MAC实体从随机接入资源选择过程重新开始或者向高层指示随机接入问题。
在这个例子中，还可以引入一个新的定时器(称为第一定时器)，如前所述，终端设备的MAC实体在消息3的一个传输或一个重传机会结束时，不管消息3的LBT结果，启动该第一定时器，在该第一定时器运行期间监听竞争解决消息，可选的，还可以监听消息3的HARQ重传的调度信息，在该第一定时器超时时，终端设备允许进行消息3的传输。由此，避免了消息3的频繁发送，节约了终端设备的能耗。这里，消息3的HARQ重传可以用‘使用特定TC-RNTI寻址的PDCCH’替换，特定的TC-RNTI是指终端设备存储的，或者说是收到的RAR里分配给终端设备自己的。
在本实施例中，‘传输’，也即‘终端设备发送’，都可以替换为“传输尝试”或者MAC生成一个TB。由于LBT失败或功率控制，该传输尝试可能失败。这里，由于MAC实体针对一个上行授权，会有一个消息3初传或消息3重传，然后生成一个TB，然后指示物理层进行传输，因此，上述‘传输’也可以替换为‘MAC生成一个TB’。
在本实施例中，对于多竞争解决方案，竞争解决消息中还可以包括新的C-RNTI，在竞争成功，而TC-RNTI被其他终端设备占用的情况下，终端设备可以使用该C-RNTI作为自己的C-RNTI来寻址PDCCH。
通过本实施例的方法，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
实施例2
本实施例提供了一种信号发送方法，该方法应用于网络设备，其是对应实施例1的方法的网络侧的处理，其中与实施例1相同的内容不再重复说明。
图9是本实施例的信号发送方法的示意图，如图9所示，该方法包括：
步骤901：网络设备接收随机接入前导码(RA preamble)；
步骤902：所述网络设备发送随机接入响应(RAR)，所述随机接入响应关联多个上行授权(UL grant)；所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的至少一个上行授权用于所述消息3的初传。
在本实施例中，如实施例1所述，上述RAR关联多个UL grant，是指，一个RAR关联一个UL grant，网络设备在RAR接收窗口内发送多个RAR；或者，一个RAR关联多个UL grant，网络设备在RAR接收窗口内发送一个或多个RAR。此处不再赘述。
在一个实施方式中，如实施例1所述，上述多个UL grant中的第一UL grant用于消息3的初传，该多个UL grant中的第二UL grant用于消息3的重传。
在另一个实施方式中，如实施例1所述，上述多个UL grant中的第一UL grant用于消息3的初传，上述多个UL grant中的第二UL grant也用于消息3的初传。
在本实施方式中，上述第二UL grant与上述第一UL grant对应的消息3的重传对应的UL grant可以占用不同的时域资源。由此，可以避免RAR里包括的第一UL grant对应的动态调度重传对应的UL grant与该RAR里包括的第二UL grant之间的冲突。
上述关于第一UL grant和第二UL grant的含义与实施例1相同，此处不再赘述。
在本实施方式中，如实施例1所述，上述RAR可以包含UL grant对应的HARQ进程ID，该HARQ进程ID对应的HARQ进程用于UL grant对应的消息3的传输。
在本实施方式中，如实施例1所述，网络设备还可以发送配置信息，该配置信息配置了UL grant对应的HARQ进程ID，如果该HARQ进程ID数与上述多个UL grant的数量相同，则该HARQ进程ID与上述多个UL grant可以一一对应；如果该HARQ进程ID数小于上述多个UL grant的数量，则该HARQ进程ID与上述多个UL grant可以按照预定规则进行‘映射’，这里的‘映射’也可以是指‘对应’。
在本实施例中，网络设备还可以在上述多个UL grant中的一个UL grant上监听消息3；如果收到消息3，并且消息3包括第一竞争解决ID，网络设备可以发送竞争解 决消息，该竞争解决消息包括第二竞争解决ID，并且该第二竞争解决ID与消息3里包括的第一竞争解决ID相同。上述‘监听’也可以是‘接收’或‘尝试接收’，为了方便说明，本实施例描述为‘监听’，在以下的说明中，相同表述具有相同含义。
在一个实施方式中，在收到消息3后，网络设备可以停止在上述多个UL grant中的挂起或剩余或分配的UL grant上监听消息3。并且，网络设备还可以停止在动态调度的UL grant上监听消息3。
在另一个实施方式中，在收到消息3后，网络设备还可以使用上述多个UL grant中的挂起或剩余或分配的UL grant进行数据传输。这里，数据传输包括接收，也包括调度终端设备发送信号等。
在又一个实施方式中，在收到消息3后，如果上述多个UL grant中存在挂起或剩余或分配的第一UL grant，网络设备还可以在该第一UL grant上监听消息3；如果收到消息3，并且消息3包括第一竞争解决ID，网络设备还可以发送竞争解决消息，该竞争解决消息包括第二竞争解决ID，并且第二竞争解决ID与消息3里包括的第一竞争解决ID相同。
在又一个实施方式中，在收到消息3后，如果上述多个UL grant中存在挂起或剩余或分配的第一UL grant，并且第二定时器正在运行，网络设备在第一UL grant上监听消息3；如果收到消息3，并且消息3包括第一竞争解决ID，网络设备发送竞争解决消息，该竞争解决消息包括第二竞争解决ID，并且第二竞争解决ID与消息3里包括的第一竞争解决ID相同。
在又一个实施方式中，在收到消息3后，如果多个UL grant没有挂起或剩余或分配的第一UL grant，网络设备可以停止监听消息3；或者，如果上述第二定时器超时，网络设备可以停止在第一UL grant上监听消息3。
在本实施例中，网络设备可以运行上述第二定时器；并且该第二定时器的持续时间与竞争解决定时器相同。
在本实施例中，网络设备还可以运行第一定时器；网络设备在收到消息3时，可以启动该第一定时器，网络设备在该第一定时器运行期间发送竞争解决消息；或者网络设备在消息3的一个传输或重传机会结束时，启动该第一定时器，网络设备在该第一定时器运行期间发送消息3的HARQ重传的调度信息；在所述第一定时器超时时，开始接收消息3的传输。关于该第一定时器，已经在实施例1中做了说明，此处不再 赘述。
在本实施例中，上述竞争解决消息还可以包括一个C-RNTI，该C-RNTI可以用于标识终端设备。
通过本实施例的方法，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
实施例3
本实施例提供了一种信号发送装置，该装置配置于终端设备，由于该装置解决问题的原理与实施例1的方法类似，其具体的实施可以参考实施例1，内容相同之处不再重复说明。
图10是本实施例的信号发送装置的一个示意图，如图10所示，该装置1000包括：
接收单元1001，其接收随机接入响应，所述随机接入响应关联多个上行授权；
发送单元1002，其使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送所述消息3的初传。
在本实施例中，上述随机接入响应关联多个上行授权，是指，接收单元1001在随机接入响应接收窗口内接收到多个随机接入响应接收到多个随机接入响应，每个随机接入响应关联一个上行授权；或者，接收单元1001在随机接入响应接收窗口内接收到一个随机接入响应，所述随机接入响应关联多个上行授权。
在本实施例的一个实施方式中，发送单元1002使用上述多个上行授权发送消息3，其中，该多个上行授权中的第一上行授权用于发送消息3的初传，该多个上行授权中的第二上行授权用于发送消息3的重传。
在本实施例的另一个实施方式中，发送单元1002使用上述多个上行授权发送消息3，其中，该多个上行授权中的第一上行授权用于消息3的初传，该多个上行授权中的第二上行授权也用于消息3的初传。
在本实施方式中，消息3的初传与消息3的重传之间的优先级关系为：后到的消息3的优先级较高；或者，消息3的初传的优先级高于消息3的重传的优先级。
在本实施方式中，每个上行授权对应一个进程ID，发送单元1002根据各个上行授权对应的进程ID发送消息3的初传，各个上行授权对应的进程ID包含于随机接入 响应中，或者是预配置的，或者是终端设备计算获得的。
在本实施例的另一个实施方式中，发送单元1002使用上述多个上行授权的至少一个发送消息3；如图10所示，装置1000还包括：
第一处理单元1003，其接收竞争解决消息，对所述竞争解决消息进行解码得到MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3包括的或发送的不匹配，则认为竞争解决未成功，丢弃所述随机接入响应中收到的挂起或剩余或分配的上行授权。
在本实施方式中，在认为竞争解决未成功时，第一处理单元1003还丢弃动态调度的上行授权。
在本实施例的另一个实施方式中，发送单元1002使用上述多个上行授权的至少一个发送消息3；如图10所示，装置1000还包括：
第二处理单元1004，其接收竞争解决消息，对所述竞争解决消息进行解码得到MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3包括的或发送的不匹配，则认为竞争解决未成功。
在本实施方式中，如果竞争解决未成功并且有可用的用于发送所述消息3的上行授权，则第二处理单元1004使用可用的上行授权进行所述消息3的传输。
在本实施方式中，如果竞争解决未成功并且没有可用的用于发送所述消息3的上行授权，则第二处理单元1004执行以下行为的至少一种：清空用于所述消息3的buffer里的MAC PDU的传输的HARQ buffer；将前导码传输计数器加1；如果该计数器达到最大值+1，向高层指示随机接入问题，若随机接入过程是系统消息请求触发的，认为随机接入过程完成但未成功；如果随机接入过程未完成，回到随机接入资源选择过程。
在本实施方式中，如果竞争解决未成功，则第二处理单元1004不丢弃随机接入响应中收到的TC-RNTI。
在本实施例的一个实施方式中，发送单元1002使用上述多个上行授权的至少一个发送消息3；如图10所示，装置1000还包括：
第三处理单元1005，如果没有可用的用于发送所述消息3的上行授权，并且竞争解决计时器超时或第一定时器超时，则第三处理单元1005丢弃随机接入响应中接收到的TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
在本实施例的一个实施方式中，发送单元1002使用上述多个上行授权的至少一个发送消息3；如图10所示，装置1000还包括：
第四处理单元1006，如果没有可用的用于发送所述消息3的上行授权，则第四处理单元1006丢弃随机接入响应中接收到的TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
在本实施例的一个实施方式中，上述多个上行授权位于授权频段或非授权频段，如图10所示，装置1000还包括：
第五处理单元1007，其在消息3的传输或重传机会结束时，启动或重启竞争解决定时器；
如果消息3里包括CCCH SDU并且使用TC-RNTI寻址PDCCH传输；
如果成功译码了MAC PDU，如果MAC PDU包括竞争解决ID，并且竞争解决ID与所述消息3里发送的匹配，则第五处理单元1007停止竞争解决定时器。
在本实施例的一个实施方式中，上述多个上行授权位于非授权频段，如图10所示，装置1000还包括：
第六处理单元1008，其在消息3的传输的LBT成功时，启动竞争解决定时器；
如果所有消息3的传输都失败和/或竞争解决定时器超时，第六处理单元1008从随机接入资源选择过程重新开始或者向高层指示随机接入问题。
在本实施例的一个实施方式中，如图10所示，装置1000还包括：
第七处理单元1009，其在消息3的一个传输或一个重传机会结束时，启动第一定时器；在第一定时器运行期间监听竞争解决消息，并且监听所述消息3的HARQ重传的调度信息，在第一定时器超时时，允许进行消息3的传输或传输尝试。
在本实施例中，上述竞争解决消息可以包括C-RNTI，终端设备可以使用该C-RNTI作为自己的C-RNTI。
通过本实施例的方法，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
实施例4
本实施例还提供了一种信号发送装置，该装置配置于网络设备，由于该装置解决问题的原理与实施例2的方法类似，其具体的实施可以参考实施例2，内容相同之处 不再重复说明。
图11是本实施例的信号发送装置1100的示意图，如图11所示，该装置1100包括：
接收单元1101，其接收随机接入前导码；
第一发送单元1102，其发送随机接入响应，所述随机接入响应关联多个上行授权；所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的至少一个上行授权用于所述消息3的初传。
在本实施例中，所述随机接入响应关联多个上行授权，是指，一个随机接入响应关联一个上行授权，所述网络设备在随机接入响应接收窗口内发送多个随机接入响应；或者，一个随机接入响应关联多个上行授权。
在一个实施方式中，所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权用于所述消息3的重传。
在另一个实施方式中，所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的第一上行授权用于消息3的初传，所述多个上行授权中的第二上行授权也用于消息3的初传。
在本实施方式中，所述第二上行授权与所述第一上行授权对应的消息3的重传对应的上行授权可以占用不同的时域资源。
在本实施方式中，所述随机接入响应可以包含所述上行授权对应的HARQ进程ID，所述HARQ进程ID对应的HARQ进程用于所述上行授权对应的所述消息3的传输。
在本实施方式中，如图11所示，所述装置1100还可以包括：
第二发送单元1103，其发送配置信息，所述配置信息配置了所述上行授权对应的HARQ进程ID，如果所述HARQ进程ID数与所述多个上行授权的数量相同，则所述HARQ进程ID与所述多个上行授权一一对应；如果所述HARQ进程ID数小于所述多个上行授权的数量，则所述HARQ进程ID与所述多个上行授权按照预定规则进行映射。
在本实施方式中，如图11所示，所述装置1100还可以包括：
监听单元1104，其在所述多个上行授权中的一个上行授权上监听所述消息3；
如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元1102发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
在一个例子中，如图11所示，所述装置1100还可以包括：
第一处理单元1105，其停止在所述多个上行授权中的挂起或剩余或分配的上行授权上监听消息3。可选的，所述第一处理单元1105还可以停止在动态调度的上行授权上监听消息3。
在另一个例子中，如图11所示，所述装置1100还可以包括：
第二处理单元1106，其使用所述多个上行授权中的挂起或剩余或分配的上行授权进行数据传输。
在另一个例子中，如果所述多个上行授权中存在挂起或剩余或分配的第一上行授权，所述监听单元1104可以在所述第一上行授权上监听所述消息3；如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元1102可以发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
在又一个例子中，如果所述多个上行授权中存在挂起或剩余或分配的第一上行授权，并且第二定时器正在运行，所述监听单元1104可以在所述第一上行授权上监听所述消息3；如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元1102可以发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
在再一个例子中，如果所述多个上行授权没有挂起或剩余或分配的第一上行授权，所述监听单元1104可以停止监听消息3；或者如果第二定时器超时，所述监听单元1104可以停止在所述第一上行授权上监听消息3。
在本实施例中，如图11所示，所述装置1100还可以包括：
第三处理单元1107，其运行所述第二定时器；所述第二定时器的持续时间与竞争解决定时器相同。
在本实施例中，如图11所示，所述装置1100还可以包括：
第四处理单元1108，其运行第一定时器；所述监听单元1104在收到所述消息3时，所述第四处理单元1108启动所述第一定时器，所述第一发送单元1102在所述第 一定时器运行期间发送竞争解决消息；或者所述第四处理单元1108在所述消息3的一个传输或重传机会结束时，启动所述第一定时器，所述第一发送单元1102在所述第一定时器运行期间发送所述消息3的HARQ重传的调度信息；所述监听单元1104在所述第一定时器超时时，开始接收所述消息3的传输。
在本实施例中，所述竞争解决消息还可以包括一个C-RNTI，所述C-RNTI用于标识终端设备。
通过本实施例的装置，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
实施例5
本发明实施例还提供了一种终端设备，其中，该终端设备包括实施例3所述的装置。
图12是本发明实施例的终端设备的示意图。如图12所示，该终端设备1200可以包括中央处理器1201和存储器1202；存储器1202耦合到中央处理器1201。值得注意的是，该图是示例性的；还可以使用其它类型的结构，来补充或代替该结构，以实现电信功能或其它功能。
在一个实施方式中，实施例3所述的装置的功能可以被集成到中央处理器1201中，由中央处理器1201实现实施例3所述的装置的功能，其中关于实施例3所述的装置的功能被合并于此，在此不再赘述。
在另一个实施方式中，实施例3所述的装置可以与中央处理器1201分开配置，例如可以将该实施例3所述的装置配置为与中央处理器1201连接的芯片，通过中央处理器1201的控制来实现该实施例3所述的装置的功能。
如图12所示，该终端设备1200还可以包括：通信模块1203、输入单元1204、音频处理单元1205、显示器1206、电源1207。值得注意的是，终端设备1200也并不是必须要包括图12中所示的所有部件；此外，终端设备1200还可以包括图12中没有示出的部件，可以参考现有技术。
如图12所示，中央处理器1201有时也称为控制器或操作控件，可以包括微处理器或其它处理器装置和/或逻辑装置，该中央处理器1201接收输入并控制终端设备1200的各个部件的操作。
其中，存储器1202，例如可以是缓存器、闪存、硬驱、可移动介质、易失性存储器、非易失性存储器或其它合适装置中的一种或更多种。可储存上述与配置有关的信息，此外还可存储执行有关信息的程序。并且中央处理器1201可执行该存储器1202存储的该程序，以实现信息存储或处理等。其它部件的功能与现有类似，此处不再赘述。终端设备1200的各部件可以通过专用硬件、固件、软件或其结合来实现，而不偏离本发明的范围。
通过本实施例的终端设备，可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
实施例6
本发明实施例还提供了一种网络设备，其中，该网络设备包括实施例4所述的装置。
图13是本发明实施例的网络设备的一个实施方式的构成示意图。如图13所示，网络设备1300可以包括：中央处理器(CPU)1301和存储器1302；存储器1302耦合到中央处理器1301。其中该存储器1302可存储各种数据；此外还存储信息处理的程序，并且在中央处理器1301的控制下执行该程序，以接收终端设备发送的各种信息、并且向终端设备发送各种信息。
在一个实施方式中，实施例4所述的装置的功能可以被集成到中央处理器1301中，由中央处理器1301实现实施例4所述的装置的功能，其中关于实施例4所述的装置的功能被合并于此，在此不再赘述。
在另一个实施方式中，实施例4所述的装置可以与中央处理器1301分开配置，例如可以将该实施例4所述的装置为与中央处理器1301连接的芯片，通过中央处理器1301的控制来实现该实施例4所述的装置的功能。
此外，如图13所示，网络设备1300还可以包括：收发机1303和天线1304等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1300也并不是必须要包括图13中所示的所有部件；此外，网络设备1300还可以包括图13中没有示出的部件，可以参考现有技术。
通过本实施例的网络设备，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
实施例7
本发明实施例还提供一种通信系统，该通信系统包括网络设备和终端设备，网络设备例如为实施例6所述的网络设备1300，终端设备例如为实施例5所述的终端设备1200。
在本实施例中，该终端设备例如是gNB服务的UE，其除了包含实施例3所述的装置的功能以外，还包括终端设备的常规组成和功能，如实施例5所述，在此不再赘述。
在本实施例中，该网络设备例如可以是NR中的gNB，其除了包含实施例4所述的装置的功能以外，还包括网络设备的常规组成和功能，如实施例6所述，在此不再赘述。
通过本实施例的通信系统，终端设备可以合理处理网络设备提供的多个上行授权，提高了随机接入的可靠性。
本发明实施例还提供一种计算机可读程序，其中当在终端设备中执行所述程序时，所述程序使得计算机在所述终端设备中执行实施例1所述的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在终端设备中执行实施例1所述的方法。
本发明实施例还提供一种计算机可读程序，其中当在网络设备中执行所述程序时，所述程序使得计算机在所述网络设备中执行实施例2所述的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在网络设备中执行实施例2所述的方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。逻辑部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模 块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本发明所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它装置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。
关于本实施例公开的上述实施方式，还公开了如下的附记：
1、一种信号发送装置，所述装置配置于终端设备，其中，所述装置包括：
接收单元，其接收随机接入响应，所述随机接入响应关联多个上行授权；
发送单元，其使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送所述消息3的初传。
2、根据附记1所述的装置，其中，所述随机接入响应关联多个上行授权，是指，
所述接收单元在随机接入响应接收窗口内接收到多个随机接入响应接收到多个随机接入响应，每个随机接入响应关联一个上行授权；或者
所述接收单元在随机接入响应接收窗口内接收到一个随机接入响应，所述随机接入响应关联多个上行授权。
3、根据附记1所述的装置，其中，所述发送单元使用所述多个上行授权发送消息3，其中，所述多个上行授权中的第一上行授权用于发送所述消息3的初传，所述多个上行授权中的第二上行授权用于发送所述消息3的重传。
4、根据附记1所述的装置，其中，所述发送单元使用所述多个上行授权发送消息3，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权也用于所述消息3的初传。
5、根据附记4所述的装置，其中，所述消息3的初传与所述消息3的重传之间的优先级关系为：
后到的消息3的优先级较高；或者
所述消息3的初传的优先级高于所述消息3的重传的优先级。
6、根据附记4所述的装置，其中，每个上行授权对应一个进程ID，所述发送单元根据各个上行授权对应的进程ID发送所述消息3的初传，各个上行授权对应的进程ID包含于所述随机接入响应中，或者是预配置的，或者是所述终端设备计算获得的。
7、根据附记1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置包括：
第一处理单元，其接收竞争解决消息，对所述竞争解决消息进行解码得到MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3包括的或发送的不匹配，则认为竞争解决未成功，丢弃所述随机接入响应中收到的挂起或剩余或分配的上行授权。
8、根据附记7所述的装置，其中，在认为竞争解决未成功时，所述第一处理单元还丢弃动态调度的上行授权。
9、根据附记1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置还包括：
第二处理单元，其接收竞争解决消息，对所述竞争解决消息进行解码得到MAC  PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3包括的或发送的不匹配，则认为竞争解决未成功。
10、根据附记9所述的装置，其中，
如果竞争解决未成功并且有可用的用于发送所述消息3的上行授权，则所述第二处理单元使用可用的上行授权进行所述消息3的传输。
11、根据附记9所述的装置，其中，
如果竞争解决未成功并且没有可用的用于发送所述消息3的上行授权，则所述第二处理单元执行以下行为的至少一种：清空用于所述消息3的buffer里的MAC PDU的传输的HARQ buffer；将前导码传输计数器加1；如果该计数器达到最大值+1，向高层指示随机接入问题，若随机接入过程是系统消息请求触发的，认为随机接入过程完成但未成功；如果随机接入过程未完成，回到随机接入资源选择过程。
12、根据附记9所述的装置，其中，如果竞争解决未成功，则所述第二处理单元不丢弃所述随机接入响应中收到的TC-RNTI。
13、根据附记1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置还包括：
第三处理单元，如果没有可用的用于发送所述消息3的上行授权，并且竞争解决计时器超时或第一定时器超时，则所述第三处理单元丢弃所述随机接入响应中接收到的TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
14、根据附记1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置还包括：
第四处理单元，如果没有可用的用于发送所述消息3的上行授权，则所述第四处理单元丢弃所述随机接入响应中接收到的TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
15、根据附记1所述的装置，其中，所述多个上行授权位于授权频段或非授权频段，所述装置还包括：
第五处理单元，其在所述消息3的传输或重传机会结束时，启动或重启竞争解决定时器；
如果所述消息3里包括CCCH SDU并且使用TC-RNTI寻址PDCCH传输；
如果成功译码了所述MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所 述竞争解决ID与所述消息3里发送的匹配，则所述第五处理单元停止所述竞争解决定时器。
16、根据附记1所述的装置，其中，所述多个上行授权位于非授权频段，所述装置还包括：
第六处理单元，其在所述消息3的传输的LBT成功时，启动竞争解决定时器；
如果所有消息3的传输都失败和/或所述竞争解决定时器超时，所述第六处理单元从随机接入资源选择过程重新开始或者向高层指示随机接入问题。
17、根据附记1所述的装置，其中，所述装置还包括：
第七处理单元，其在所述消息3的一个传输或一个重传机会结束时，启动第一定时器；在所述第一定时器运行期间监听竞争解决消息，并且监听所述消息3的HARQ重传的调度信息，在所述第一定时器超时时，允许进行所述消息3的传输或传输尝试。
18、根据附记9或10或12或13所述的装置，其中，所述竞争解决消息包括C-RNTI，所述终端设备使用所述C-RNTI作为自己的C-RNTI。
1A、一种信号发送装置，配置于网络设备，其中，所述装置包括：
接收单元，其接收随机接入前导码；
第一发送单元，其发送随机接入响应，所述随机接入响应关联多个上行授权；所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的至少一个上行授权用于所述消息3的初传。
2A、根据附记1A所述的装置，其中，所述随机接入响应关联多个上行授权，是指，
一个随机接入响应关联一个上行授权，所述网络设备在随机接入响应接收窗口内发送多个随机接入响应；或者
一个随机接入响应关联多个上行授权。
3A、根据附记1A所述的装置，其中，所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权用于所述消息3的重传。
4A、根据附记1A所述的装置，其中，所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权也用于所述消息3的初传。
5A、根据附记4A所述的装置，其中，所述第二上行授权与所述第一上行授权对应的消息3的重传对应的上行授权占用不同的时域资源。
6A、根据附记4A所述的装置，其中，所述随机接入响应包含所述上行授权对应的HARQ进程ID，所述HARQ进程ID对应的HARQ进程用于所述上行授权对应的所述消息3的传输。
7A、根据附记4A所述的装置，其中，所述装置还包括：
第二发送单元，其发送配置信息，所述配置信息配置了所述上行授权对应的HARQ进程ID，如果所述HARQ进程ID数与所述多个上行授权的数量相同，则所述HARQ进程ID与所述多个上行授权一一对应；如果所述HARQ进程ID数小于所述多个上行授权的数量，则所述HARQ进程ID与所述多个上行授权按照预定规则进行映射。
8A、根据附记1A所述的装置，其中，所述装置还包括：
监听单元，其在所述多个上行授权中的一个上行授权上监听所述消息3；
如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
9A、根据附记8A所述的装置，其中，所述装置还包括：
第一处理单元，其停止在所述多个上行授权中的挂起或剩余或分配的上行授权上监听消息3。
10A、根据附记9A所述的装置，其中，
所述第一处理单元还停止在动态调度的上行授权上监听消息3。
11A、根据附记8A所述的装置，其中，所述装置还包括：
第二处理单元，其使用所述多个上行授权中的挂起或剩余或分配的上行授权进行数据传输。
12A、根据附记8A所述的装置，其中，
如果所述多个上行授权中存在挂起或剩余或分配的第一上行授权，所述监听单元在所述第一上行授权上监听所述消息3；
如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解 决ID与所述消息3里包括的第一竞争解决ID相同。
13A、根据附记8A所述的装置，其中，
如果所述多个上行授权中存在挂起或剩余或分配的第一上行授权，并且第二定时器正在运行，所述监听单元在所述第一上行授权上监听所述消息3；
如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
14A、根据附记8A所述的装置，其中，
如果所述多个上行授权没有挂起或剩余或分配的第一上行授权，所述监听单元停止监听消息3；或者
如果第二定时器超时，所述监听单元停止在所述第一上行授权上监听消息3。
15A、根据附记13A或14A所述的装置，其中，所述装置还包括：
第三处理单元，其运行所述第二定时器；所述第二定时器的持续时间与竞争解决定时器相同。
16A、根据附记8A所述的装置，其中，所述装置还包括：
第四处理单元，其运行第一定时器；
所述监听单元在收到所述消息3时，所述第四处理单元启动所述第一定时器，所述第一发送单元在所述第一定时器运行期间发送竞争解决消息；或者所述第四处理单元在所述消息3的一个传输或重传机会结束时，启动所述第一定时器，所述第一发送单元在所述第一定时器运行期间发送所述消息3的HARQ重传的调度信息；
所述监听单元在所述第一定时器超时时，开始接收所述消息3的传输。
17A、根据附记12A或13A所述的装置，其中，所述竞争解决消息还包括一个C-RNTI，所述C-RNTI用于标识终端设备。

Claims (20)

  1. 一种信号发送装置，所述装置配置于终端设备，其中，所述装置包括：
    接收单元，其接收随机接入响应，所述随机接入响应关联多个上行授权；
    发送单元，其使用所述多个上行授权中的一个或多个上行授权发送消息3，其中，所述一个或多个上行授权中的至少一个上行授权用于发送所述消息3的初传。
  2. 根据权利要求1所述的装置，其中，所述发送单元使用所述多个上行授权发送消息3，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权也用于所述消息3的初传。
  3. 根据权利要求2所述的装置，其中，所述消息3的初传与所述消息3的重传之间的优先级关系为：
    后到的消息3的优先级较高；或者
    所述消息3的初传的优先级高于所述消息3的重传的优先级。
  4. 根据权利要求2所述的装置，其中，每个上行授权对应一个进程ID，所述发送单元根据各个上行授权对应的进程ID发送所述消息3的初传，各个上行授权对应的进程ID包含于所述随机接入响应中，或者是预配置的，或者是所述终端设备计算获得的。
  5. 根据权利要求1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置包括：
    第一处理单元，其接收竞争解决消息，对所述竞争解决消息进行解码得到MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3包括的或发送的不匹配，则认为竞争解决未成功，丢弃所述随机接入响应中收到的挂起或剩余或分配的上行授权。
  6. 根据权利要求1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置还包括：
    第二处理单元，其接收竞争解决消息，对所述竞争解决消息进行解码得到MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3包括的或发送的不匹配，则认为竞争解决未成功。
  7. 根据权利要求6所述的装置，其中，
    如果竞争解决未成功并且有可用的用于发送所述消息3的上行授权，则所述第二处理单元使用可用的上行授权进行所述消息3的传输。
  8. 根据权利要求1所述的装置，其中，所述发送单元使用所述多个上行授权的至少一个发送消息3；所述装置还包括：
    第三处理单元，如果没有可用的用于发送所述消息3的上行授权，并且竞争解决计时器超时或第一定时器超时，则所述第三处理单元丢弃所述随机接入响应中接收到的TC-RNTI，认为竞争解决未成功，丢弃成功译码的MAC PDU。
  9. 根据权利要求1所述的装置，其中，所述多个上行授权位于授权频段或非授权频段，所述装置还包括：
    第五处理单元，其在所述消息3的传输或重传机会结束时，启动或重启竞争解决定时器；
    如果所述消息3里包括CCCH SDU并且使用TC-RNTI寻址PDCCH传输；
    如果成功译码了所述MAC PDU，如果所述MAC PDU包括竞争解决ID，并且所述竞争解决ID与所述消息3里发送的匹配，则所述第五处理单元停止所述竞争解决定时器。
  10. 根据权利要求1所述的装置，其中，所述装置还包括：
    第七处理单元，其在所述消息3的一个传输或一个重传机会结束时，启动第一定时器；在所述第一定时器运行期间监听竞争解决消息，并且监听所述消息3的HARQ重传的调度信息，在所述第一定时器超时时，允许进行所述消息3的传输或传输尝试。
  11. 一种信号发送装置，配置于网络设备，其中，所述装置包括：
    接收单元，其接收随机接入前导码；
    第一发送单元，其发送随机接入响应，所述随机接入响应关联多个上行授权；所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的至少一个上行授权用于所述消息3的初传。
  12. 根据权利要求11所述的装置，其中，所述随机接入响应关联多个上行授权，是指，
    一个随机接入响应关联一个上行授权，所述网络设备在随机接入响应接收窗口内发送多个随机接入响应；或者
    一个随机接入响应关联多个上行授权。
  13. 根据权利要求11所述的装置，其中，所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权用于所述消息3的重传。
  14. 根据权利要求11所述的装置，其中，所述多个上行授权用于消息3的传输，其中，所述多个上行授权中的第一上行授权用于所述消息3的初传，所述多个上行授权中的第二上行授权也用于所述消息3的初传。
  15. 根据权利要求14所述的装置，其中，所述随机接入响应包含所述上行授权对应的HARQ进程ID，所述HARQ进程ID对应的HARQ进程用于所述上行授权对应的所述消息3的传输。
  16. 根据权利要求11所述的装置，其中，所述装置还包括：
    监听单元，其在所述多个上行授权中的一个上行授权上监听所述消息3；
    如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
  17. 根据权利要求16所述的装置，其中，所述装置还包括：
    第一处理单元，其停止在所述多个上行授权中的挂起或剩余或分配的上行授权上监听消息3。
  18. 根据权利要求16所述的装置，其中，
    如果所述多个上行授权中存在挂起或剩余或分配的第一上行授权，所述监听单元在所述第一上行授权上监听所述消息3；
    如果收到所述消息3，并且所述消息3包括第一竞争解决ID，所述第一发送单元发送竞争解决消息，所述竞争解决消息包括第二竞争解决ID，并且所述第二竞争解决ID与所述消息3里包括的第一竞争解决ID相同。
  19. 根据权利要求18所述的装置，其中，所述竞争解决消息还包括一个C-RNTI，所述C-RNTI用于标识终端设备。
  20. 一种通信系统，其中，所述通信系统包括网络设备和终端设备，所述网络设备配置有权利要求11所述的装置，所述终端设备配置有权利要求1所述的装置。
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