WO2022152205A1 - Procédé et appareil de résolution de contention, dispositif, et support d'enregistrement - Google Patents

Procédé et appareil de résolution de contention, dispositif, et support d'enregistrement Download PDF

Info

Publication number
WO2022152205A1
WO2022152205A1 PCT/CN2022/071783 CN2022071783W WO2022152205A1 WO 2022152205 A1 WO2022152205 A1 WO 2022152205A1 CN 2022071783 W CN2022071783 W CN 2022071783W WO 2022152205 A1 WO2022152205 A1 WO 2022152205A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
contention resolution
rnti
pdsch
target
Prior art date
Application number
PCT/CN2022/071783
Other languages
English (en)
Chinese (zh)
Inventor
吴凯
鲍炜
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022152205A1 publication Critical patent/WO2022152205A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance

Definitions

  • the present application belongs to the field of communication technologies, and specifically relates to a method, apparatus, device and storage medium for resolving competition.
  • different terminals randomly select the random access preamble preamble for transmission, so that different terminals may select the same preamble on the same resource to send, triggering the competitive random access process.
  • the network can only solve the PUSCH sent by one terminal on a message Message 3 Physical Uplink Shared Channel (PUSCH) scheduling resource, and the network will use the Message 4 Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) ) contains the contention resolution identity (Identity, ID) and the common control channel service data unit (Common Control Channel service Data Unit, CCCH SDU) sent by the terminal in the Message 3 PUSCH match, then the terminal considers that the competition resolution is successful, and will The temporary cell radio network temporary identifier (Temporary Cell Radio Network Temporary Identifier, TC-RNTI) is used as the cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI) of the terminal. If there is no match, the contention resolution is considered unsuccessful. However, when this kind of contention solution is used for PUSCH repeated transmission, the terminal access delay may be increased.
  • TC-RNTI Temporary Cell Radio Network Temporary Identifier
  • the purpose of the embodiments of the present application is to provide a contention resolution method, apparatus, device, and storage medium, which can achieve successful contention resolution for at least one terminal at the same time, and reduce access delay.
  • a contention resolution method includes: a terminal determines that contention resolution is successful based on a first PDSCH sent by a network side; the first PDSCH includes: at least one terminal contention resolution ID, the at least one terminal The contention resolution ID includes the target terminal contention resolution ID of the terminal.
  • a contention resolution method includes: the network side sends a first PDSCH; the shown first PDSCH is used for the terminal to determine that the contention resolution is successful; the first PDSCH includes: at least one terminal contention resolution ID, The at least one terminal contention resolution ID includes a target terminal contention resolution ID of the terminal.
  • a contention resolution apparatus includes: a first determination module configured to determine success of contention resolution based on a first PDSCH sent by a network side; the first PDSCH includes: at least one terminal contention resolution ID , the at least one terminal contention resolution ID includes a target terminal contention resolution ID of the terminal.
  • a contention resolution apparatus in a fourth aspect, includes: a first sending module, configured to send a first PDSCH; the shown first PDSCH is used for a terminal to determine that the contention resolution is successful; the first PDSCH includes: at least one A terminal contention resolution ID, the at least one terminal contention resolution ID includes a target terminal contention resolution ID of the terminal.
  • a terminal device in a fifth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor When executed, the steps of the method as described in the first aspect are implemented.
  • a network side device in a sixth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the second aspect when executed.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect, or the The steps of the method of the second aspect.
  • a chip in an eighth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a device program or instruction to implement the first aspect method, or implementing the method as described in the second aspect.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;
  • FIG. 2 is one of the schematic flowcharts of the competition resolution method provided by the embodiment of the present application.
  • FIG. 3 is one of the schematic diagrams of the media access control layer sub-protocol data unit (Media Access Control Sub Protocol Data Unit, MAC sub PDU) format provided by an embodiment of the present application;
  • media access control layer sub-protocol data unit Media Access Control Sub Protocol Data Unit, MAC sub PDU
  • FIG. 5 is the third schematic diagram of the MAC sub PDU format provided by the embodiment of the present application.
  • FIG. 6 is the second schematic flowchart of the competition resolution method provided by the embodiment of the present application.
  • FIG. 7 is one of the schematic structural diagrams of the contention resolution apparatus provided by the embodiment of the present application.
  • FIG. 8 is a second schematic structural diagram of a contention resolution apparatus provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a hardware structure of a terminal device provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation (6th Generation) , 6G) communication system.
  • 6th Generation 6th Generation
  • 6G 6th Generation
  • FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
  • the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • FIG. 2 is one of the schematic flowcharts of the contention resolution method provided by the embodiment of the present application. As shown in FIG. 2 , the method includes the following steps:
  • Step 200 the terminal determines that the contention is successfully resolved based on the first PDSCH sent by the network side;
  • the first PDSCH includes: at least one terminal contention resolution ID, and the at least one terminal contention resolution ID includes a target terminal contention resolution ID of the terminal.
  • different terminals randomly select the preamble for transmission, so that different terminals may select the same preamble on the same resource to send, triggering the competitive random access process.
  • This situation can be understood as a preamble conflict of the terminal.
  • different terminals can receive the same random access response (Random Access Response, RAR), then different terminals will respond to uplink grant resources (RAR Uplink Grant, RAR UL Grant) according to the random access at this time.
  • RAR Random Access Response
  • RAR Uplink Grant RAR Uplink Grant
  • the terminal can perform repeated transmission of PUSCH on multiple occasions, and the network side can solve the Message 3 sent by multiple terminals. PUSCH.
  • one or more terminal contention resolution IDs can be sent to the terminal through the network side, so that one or more available contention resolutions are successful at the same time. Avoid the situation that the terminal that has not successfully resolved the contention can only try a new Random Access Channel (RACH), thereby reducing the power consumption and access delay of the terminal, and avoiding more RACH resources. occupancy.
  • RACH Random Access Channel
  • the terminal may receive the first PDSCH sent by the network side, obtain the target terminal contention resolution ID corresponding to the terminal in at least one terminal contention resolution ID included in the first PDSCH, and determine that the contention resolution is successful.
  • multiple terminals may receive the first PDSCH sent by the network side, and obtain target terminal contention resolution IDs corresponding to the multiple terminals in the at least one terminal contention resolution ID included in the first PDSCH.
  • Competitive resolution can be determined to be successful.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • the first PDSCH includes: the PDSCH scheduled by the PDCCH scrambled by the TC-RNTI of the terminal.
  • the first PDSCH received by the terminal from the network side may be the PDSCH scheduled by the PDCCH scrambled by the terminal's TC-RNTI.
  • the first PDSCH received by the terminal from the network side may be Message 4.
  • the terminal contention resolution ID is included in the MAC sub PDU.
  • the terminal contention resolution ID may be included in the MAC sub PDU for transmission.
  • the information contained in different MAC sub PDUs may be different.
  • determining that the contention is successfully resolved based on the first PDSCH sent by the network side includes:
  • the target sub-protocol data unit (Sub Protocol Data Unit, sub PDU) of the first PDSCH includes the target terminal contention resolution ID of the terminal, it is determined that the terminal contention is successfully resolved;
  • the target terminal contention resolution ID matches the CCCH SDU of the terminal in Message 3.
  • the network side may include the terminal contention resolution ID in the first PDSCH such as Message 4 PDSCH, if the terminal receiving the first PDSCH determines that it contains the target terminal contention resolution ID corresponding to the terminal, that is, it contains the target terminal contention resolution ID corresponding to the terminal.
  • the terminal contention resolution ID such as Message 4 PDSCH
  • the terminal receiving the first PDSCH determines that it contains the target terminal contention resolution ID corresponding to the terminal, that is, it contains the target terminal contention resolution ID corresponding to the terminal.
  • the terminal can consider that the contention resolution is successful. If there is no matching terminal contention resolution ID, the terminal may consider the contention resolution unsuccessful.
  • the sub PDU containing the target contention resolution ID of the terminal is the target sub PDU of the terminal, that is, the target sub PDU has a corresponding relationship with the terminal.
  • the target terminal contention resolution ID of the terminal may be the terminal contention resolution ID matched by the terminal in the CCCH SDU of Message 3; that is, the target terminal contention resolution ID and the terminal are in one-to-one correspondence. .
  • a Message 4 PDSCH can contain multiple MAC sub PDUs, corresponding to the relevant information used by different terminals to determine contention resolution, and the terminal can decode multiple MAC sub PDUs.
  • the terminal contention resolution ID matched by the CCCH SDU is considered to be successful, that is, the network can send the contention resolution ID to multiple users in one Message 4 PDSCH.
  • the control layer protocol data unit Media Access Control sub Protocol Data Unit, MAC PDU
  • each terminal can obtain its own corresponding target terminal contention resolution ID from its own corresponding target sub PDU, and then determine the successful contention resolution, thereby helping multiple terminals to achieve successful contention resolution at the same time.
  • the first PDSCH further includes: first C-RNTI related information and/or first hybrid automatic repeat request acknowledgment (Hybrid Automatic Repeat request-Acknowledgement, HARQ-Ack) transmission resource related information;
  • first C-RNTI related information and/or first hybrid automatic repeat request acknowledgment (Hybrid Automatic Repeat request-Acknowledgement, HARQ-Ack) transmission resource related information Hybrid Automatic Repeat request-Acknowledgement, HARQ-Ack) transmission resource related information
  • the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.
  • the first PDSCH may further include: first C-RNTI related information, which is used by the terminal to determine its C-RNTI.
  • the first PDSCH may further include: a first HARQ-Ack transmission resource; for the terminal to determine its C-RNTI, that is, for the terminal to determine its corresponding target physical uplink control channel for transmitting the HARQ-Ack of the first PDSCH (Physical Uplink Control Channel, PUCCH) transmission resources.
  • a first HARQ-Ack transmission resource for the terminal to determine its C-RNTI, that is, for the terminal to determine its corresponding target physical uplink control channel for transmitting the HARQ-Ack of the first PDSCH (Physical Uplink Control Channel, PUCCH) transmission resources.
  • PUCCH Physical Uplink Control Channel
  • the first HARQ-Ack transmission resource related information may include: HARQ-Ack transmission resources, and/or HARQ-Ack feedback time offset K1.
  • the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information may be included in the MAC sub PDU together with the terminal contention resolution ID.
  • the first C-RNTI related information may directly be all information of the C-RNTI, for example, 16-bit information, or may be indication information indicating the C-RNTI.
  • the information related to the first HARQ-Ack transmission resource may directly be a target PUCCH transmission resource or a resource index value corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.
  • FIG. 3 is one of the schematic diagrams of the MAC sub PDU format provided by the embodiment of the present application, as shown in Fig. 3, Fig. 3 shows a format of the MAC sub PDU of a kind of Message 4, which includes A MAC subheader sub header and a 48-bit terminal contention resolution ID field contain a total terminal contention resolution ID.
  • FIG. 4 is the MAC sub PDU format provided by the embodiment of the present application.
  • the second schematic diagram, as shown in Figure 4, on the basis of the MAC sub PDU format of Figure 3, may further include the first C-RNTI related information, the first HARQ-Ack transmission resource related information, and TA indication information, or Some of the above information.
  • different logical channel IDs can be used to distinguish.
  • all or part of the information contained in one of said MAC sub PDUs is associated.
  • the information included in the same MAC sub PDU may be: associated.
  • the first C-RNTI related information and the terminal contention resolution ID may both correspond to the same terminal.
  • the first HARQ-Ack transmission resource-related information and the terminal contention resolution ID may both correspond to the same terminal.
  • the first HARQ-Ack transmission resource related information and the first C-RNTI related information and the terminal contention resolution ID may correspond to the same terminal.
  • the method further includes:
  • the terminal may further determine the C-RNTI of the terminal.
  • the determining the C-RNTI of the terminal includes:
  • the C-RNTI of the terminal is determined based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located.
  • the C-RNTI of the terminal may be determined based on the order of the target sub PDUs of the terminal in the first PDSCH in the PDSCH.
  • the target sub PDU includes or does not include the first C-RNTI related information.
  • the C-RNTI of the terminal may be determined based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located.
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the C-RNTI uniquely identifies the terminal under the air interface of a cell, and the C-RNTI is valid only for the terminal in the connected state.
  • the order of the MAC-PDUs where the target sub PDUs corresponding to at least one terminal are located is also different. Therefore, the terminal is determined based on the order of the MAC-PDUs where the target sub PDUs are located.
  • different terminals can determine different C-RNTIs in one-to-one correspondence based on the sequence of different target sub PDUs, which ensures the uniqueness of the C-RNTIs of the terminals.
  • the determining the C-RNTI of the terminal based on the order of the MAC-PDU where the target sub PDU is located in the first PDSCH includes:
  • the target sub PDU is the first MAC sub PDU in the first PDSCH, determine the TC-RNTI of the terminal as the C-RNTI of the terminal.
  • the existing TC-RNTI of the terminal can be used as the terminal's TC-RNTI. C-RNTI.
  • the determining the C-RNTI of the terminal based on the order of the MAC-PDU where the target sub PDU is located in the first PDSCH includes:
  • the C-RNTI of the terminal is determined based on X; where X is greater than or equal to 1 and X is an integer.
  • the C-RNTI of the terminal can be determined based on X.
  • the determining the C-RNTI of the terminal based on X includes:
  • Y may be determined based on X, and then the existing TC-RNTI of the terminal may be calculated based on Y to obtain the C-RNTI of the terminal.
  • Y can be equal to X
  • Y may be equal to X plus 1;
  • Y and X are in one-to-one correspondence, one X value does not correspond to multiple Ys, and one Y value does not correspond to multiple Xs, so as to ensure the uniqueness of the calculated C-RNTI of the terminal.
  • calculating the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal including:
  • the decimal number corresponding to the TC-RNTI of the terminal is added to Y to obtain the decimal number corresponding to the C-RNTI of the terminal.
  • the decimal number corresponding to the existing TC-RNTI of the terminal may be added to Y, and then converted into a binary bit sequence, which is used as the C-RNTI of the terminal.
  • calculating the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal including:
  • Y-bit rotation may be performed on the existing TC-RNTI of the terminal to obtain the C-RNTI of the terminal.
  • the determining the C-RNTI of the terminal includes:
  • the C-RNTI of the terminal is determined.
  • the C-RNTI of the terminal may be determined based on the first C-RNTI related information in the target sub PDU.
  • the terminal can discard the existing TC-RNTI if the C-RNTI of the terminal can be determined only based on the first C-RNTI related information.
  • the determining the C-RNTI of the terminal includes:
  • the C-RNTI of the terminal is determined.
  • the first C-RNTI related information may include the second C-RNTI related information in the MAC sub header in the target sub PDU, which may be based on The second C-RNTI related information in the MAC sub header in the target sub PDU determines the C-RNTI of the terminal;
  • the C-RNTI related information of the terminal can be determined directly based on the second C-RNTI related information in the MAC sub header in the target sub PDU. -RNTI.
  • the second C-RNTI related information includes at least one of the following:
  • MAC sub header length information media access control layer service data unit (Media Access Control service Data Unit)
  • MAC SDU length information media access control layer control information (Media Access Control Element, MAC-CE) length information
  • MAC-CE media access control Control Element
  • the second C-RNTI related information may include but is not limited to at least one of the following:
  • the method further includes:
  • the terminal may further determine the target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.
  • the determining the target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH includes:
  • the target PUCCH transmission resource is determined based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located.
  • the target sub PDU of the terminal in the first PDSCH may be determined based on the order of the terminal's target sub PDU in the PDSCH.
  • the target PUCCH transmission resource for transmitting the HARQ-Ack of the first PDSCH may be determined based on the order of the terminal's target sub PDU in the PDSCH.
  • the HARQ corresponding to the terminal for transmitting the first PDSCH may be determined based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located. - Target PUCCH transmission resource for Ack.
  • the order of the MAC-PDUs where the target sub PDUs corresponding to at least one terminal are located is also different. Therefore, based on the order of the MAC-PDUs where the target sub PDUs are located, the target When PUCCH transmission resources are used, different terminals can determine different target PUCCH transmission resources corresponding to each other based on the sequence of different target sub PDUs, which ensures the uniqueness of the target PUCCH transmission resources and can be correlated with the C-RNTI of the terminal. correspond.
  • determining the target PUCCH transmission resource based on the order of the MAC-PDU where the target sub PDU is located in the first PDSCH includes:
  • the target sub PDU is the first MAC sub PDU in the first PDSCH, it is determined that the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal is the target PUCCH transmission resource.
  • the terminal determines that its corresponding target sub PDU is the 1st MAC sub PDU in the first PDSCH it receives, it can be indicated by the PDCCH scrambled by the TC-RNTI of the terminal.
  • the PUCCH resource is used as the target PUCCH transmission resource corresponding to the terminal.
  • determining the target PUCCH transmission resource based on the order of the MAC-PDU where the target sub PDU is located in the first PDSCH includes:
  • the target PUCCH transmission resource is determined based on Z; wherein, Z is greater than or equal to 1 and Z is an integer.
  • the target PUCCH transmission resource corresponding to the terminal may be determined based on Z.
  • the target PUCCH transmission resource corresponding to the terminal based on Z it may be preferred to obtain the index value of the target PUCCH transmission resource corresponding to the terminal based on Z, and then obtain the target PUCCH transmission resource corresponding to the terminal.
  • the determining the target PUCCH transmission resource based on Z includes:
  • the target PUCCH transmission resource is obtained by calculating the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal based on Z.
  • the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal may be calculated based on Z to obtain the index value of the target PUCCH transmission resource corresponding to the terminal, and then obtain the target PUCCH transmission resource corresponding to the terminal.
  • calculating the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal based on Z to obtain the target PUCCH transmission resource includes:
  • the target PUCCH transmission resource is obtained by adding the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal to Z.
  • the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal may be added to Z to obtain the index value of the target PUCCH transmission resource corresponding to the terminal, and then the target PUCCH transmission resource corresponding to the terminal may be obtained.
  • calculating the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal based on Z to obtain the target PUCCH transmission resource includes:
  • the target PUCCH transmission resource is determined based on the remainder after the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal is added to Z and divided by the first preset value, and the target PUCCH transmission resource is determined;
  • the settings are either preconfigured or predefined by the protocol.
  • the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal can be added to Z, and then the remainder after division with the first preset value can be used as the target PUCCH transmission resource corresponding to the terminal. to obtain the target PUCCH transmission resource corresponding to the terminal.
  • the first preset value may be 16.
  • the value range of the first preset value may be a positive integer greater than 1;
  • the value range of the first preset value may be that the first preset value is greater than or equal to 2, the first preset value is less than or equal to 16, and the first preset value is a positive integer.
  • the determining the target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH includes:
  • the target PUCCH transmission resource is determined based on the first HARQ-Ack transmission resource related information in the target sub PDU.
  • the target PUCCH transmission resource corresponding to the terminal may be determined based on the information related to the first HARQ-Ack transmission resource in the target sub PDU.
  • the determining the target PUCCH transmission resource of the terminal includes:
  • the target PUCCH transmission resource is determined based on the second HARQ-Ack transmission resource related information in the MAC sub header in the target sub PDU.
  • the first HARQ-Ack transmission resource related information may include the second HARQ-Ack transmission in the MAC sub header in the target sub PDU Resource-related information
  • the terminal can determine the target PUCCH transmission resource corresponding to the terminal based on the second HARQ-Ack transmission resource-related information in the MAC sub header in the target sub PDU;
  • the terminal may directly base on the second HARQ-Ack transmission resource in the MAC sub header in the target sub PDU.
  • the relevant information is used to determine the target PUCCH transmission resource corresponding to the terminal.
  • the second HARQ-Ack transmission resource related information includes at least one of the following:
  • the information related to the second HARQ-Ack transmission resource may include, but is not limited to, at least one of the following:
  • the first PDSCH further includes:
  • the third indication information is used to instruct to continue to receive at least one MAC sub PDU that subsequently contains the MAC SDU.
  • the first PDSCH may further include third indication information, and the terminal may determine, based on the third indication information, to continue to receive at least one subsequent MAC sub PDU containing the MAC SDU.
  • the first PDSCH may further include third indication information, and the terminal may determine, based on the third indication information, not to continue to receive the subsequent at least one MAC sub PDU containing the MAC SDU.
  • the terminal continues to receive by default or by default does not continue to receive at least one MAC sub PDU that subsequently contains the MAC SDU.
  • the method further includes:
  • the second indication information is preconfigured or sent by the network side.
  • the network side instructs Message 3 to perform repeated transmission through the second indication information, it may be determined that the contention resolution is successful based on the first PDSCH sent by the network side.
  • any of the foregoing method embodiments or a combination of any of the foregoing method embodiments may be performed.
  • the second indication information is transmitted by the network side through the PDCCH or system information scrambled by the RAR UL grant or the TC-RNTI.
  • the second indication information may be transmitted by the network side through the PDCCH or system information scrambled by the RAR UL grant or the TC-RNTI.
  • the method further includes: in the case that the preamble of Message 3 sent by the terminal satisfies the first preset condition, determining that the contention is successfully resolved based on the first PDSCH sent by the network side.
  • the preamble of Message 3 sent by the terminal satisfies the first preset condition, it can be determined that the contention resolution is successful based on the first PDSCH sent by the network side.
  • any of the foregoing method embodiments or a combination of any of the foregoing method embodiments may be performed.
  • the first preset condition includes at least one of the following:
  • the reference signal received power (Reference Signal Receiving Power, RSRP) value corresponding to the group to which the Preamble belongs is lower than a preset threshold;
  • the number of bits corresponding to Message 3 in the group to which the Preamble belongs is greater than the second preset value, and the second preset value is preconfigured;
  • the Message 3 corresponding to the grouping to which the Preamble belongs is repeatedly transmitted;
  • the group to which the Preamble belongs is associated with a first time domain resource allocation (Time domain resource allocation, TDRA) table, and the first TDRA table corresponds to the scheduling of the Message 3, and/or, the first TDRA table contains all the Describe the number of repeated transmissions of Message 3;
  • TDRA Time domain resource allocation
  • the group to which the Preamble belongs corresponds to the capability of the terminal.
  • the first preset condition may include but is not limited to at least one of the following:
  • the RSRP value corresponding to the group to which the Preamble belongs is lower than the preset threshold
  • the number of bits corresponding to Message 3 in the group to which the Preamble belongs is greater than the second preset value, and the second preset value is preconfigured;
  • the Message 3 corresponding to the grouping to which the Preamble belongs is repeatedly transmitted;
  • the group to which the Preamble belongs is associated with the first TDRA table, and the first TDRA table corresponds to the scheduling of the Message 3, and/or, the first TDRA table includes the repeated transmission times of the Message 3;
  • the group to which the Preamble belongs corresponds to the capability of the terminal.
  • an S field is included in the MAC sub PDU transmitted by the first PDSCH;
  • the S field is used to indicate whether the subsequent MAC sub PDU is a MAC sub PDU containing a MAC SDU.
  • the MAC sub PDU transmitted by the first PDSCH may include an S field, which is used to indicate whether the subsequent MAC sub PDU is a MAC sub PDU including a MAC SDU.
  • the method further includes: receiving a subsequent MAC sub PDU based on the S domain.
  • the subsequent MAC sub PDU indicated in the S field is a MAC sub PDU containing the MAC SDU
  • the subsequent MAC sub PDU includes radio resource control (Radio Resource Control, RRC) signaling;
  • RRC Radio Resource Control
  • the RRC signaling is associated with the first PDSCH containing the sub PDU of the S domain.
  • the subsequent MAC Sub PDU may include RRC signaling associated with the first PDSCH of the sub PDU corresponding to the S domain.
  • the first PDSCH further includes at least one of the following:
  • TA Power Control
  • TPC Transmit Power Control
  • the first PDSCH may also include but is not limited to at least one of the following:
  • the network includes UL grant information in the RAR to indicate the Message 3 PUSCH scheduling information, and includes RAPID (RACH preamble ID), TC-RNTI, TA and other information. If the network does not receive the Message 3 PUSCH, the retransmission of the Message 3 PUSCH can be scheduled in the PDCCH scrambled by the TC-RNTI.
  • RAPID RACH preamble ID
  • TC-RNTI TA and other information.
  • FIG. 5 is the third schematic diagram of the MAC sub PDU format provided by the embodiment of the present application.
  • the MAC sub PDU transmitted by the PDSCH of Message 4 can use this format; wherein, the S field can indicate the subsequent MAC sub PDU.
  • the terminal can receive subsequent MAC sub PDUs according to the indication.
  • the subsequent MAC sub PDU may contain RRC signaling, which is associated with the information of the Sub PDU containing the S domain, and is used to further issue RRC signaling while sending the relevant information for the terminal to determine contention resolution.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • FIG. 6 is a second schematic flowchart of a contention resolution method provided by an embodiment of the present application. As shown in FIG. 6 , the method includes the following steps:
  • Step 600 the network side sends the first PDSCH
  • the shown first PDSCH is used for the terminal to determine that the contention is successfully resolved
  • the first PDSCH includes: at least one terminal contention resolution ID, and the at least one terminal contention resolution ID includes a target terminal contention resolution ID of the terminal.
  • one or more terminal contention resolution IDs can be sent to the terminal through the network side, so that one or more available contention resolutions are successful at the same time. It avoids the situation where the terminal that has not successfully resolved the contention can only make a new RACH attempt, thereby reducing the power consumption and access delay of the terminal, and also avoiding the occupation of more RACH resources.
  • the terminal may receive the first PDSCH sent by the network side, obtain the target terminal contention resolution ID corresponding to the terminal in at least one terminal contention resolution ID included in the first PDSCH, and determine that the contention resolution is successful.
  • multiple terminals may receive the first PDSCH sent by the network side, and obtain target terminal contention resolution IDs corresponding to the multiple terminals in the at least one terminal contention resolution ID included in the first PDSCH. It can be determined that the competition resolution was successful.
  • the network side determines that the contention resolution is successful by sending the target terminal contention resolution ID in at least one terminal contention resolution ID to the terminal; at least one terminal contention resolution ID can be implemented. If the corresponding at least one terminal determines that the contention is successfully resolved, it can be achieved that the at least one terminal has successfully resolved the contention at the same time, thereby reducing the access delay.
  • the method further includes:
  • the network side sends the first PDSCH to all the terminals.
  • the network side can retransmit the first PDSCH, such as retransmitting Message 4;
  • the network side may only include the MAC Sub PDU corresponding to the part of the terminal in the PDSCH.
  • the network side determines that the contention resolution is successful by sending the target terminal contention resolution ID in at least one terminal contention resolution ID to the terminal; at least one terminal contention resolution ID can be implemented. If the corresponding at least one terminal determines that the contention is successfully resolved, it can be achieved that the at least one terminal has successfully resolved the contention at the same time, thereby reducing the access delay.
  • the execution body may be a contention resolution apparatus, or a control module in the contention resolution apparatus for executing the contention resolution method.
  • the contention resolution apparatus provided by the embodiment of the present application is described by taking the contention resolution apparatus executing the contention resolution method as an example.
  • FIG. 7 is a schematic structural diagram of a contention resolution apparatus provided by an embodiment of the present application. As shown in FIG. 7 , the apparatus includes: a first determination module 710; wherein:
  • the first determining module 710 is used by the terminal to determine that the contention is successfully resolved based on the first PDSCH sent by the network side;
  • the first PDSCH includes: at least one terminal contention resolution ID, and the at least one terminal contention resolution ID includes a target terminal contention resolution ID of the terminal.
  • the contention resolution apparatus determines, through the first determination module 710, that the contention resolution is successful based on the target terminal contention resolution ID of the terminal included in at least one terminal contention resolution ID in the first PDSCH sent by the network side.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • the first PDSCH includes: the PDSCH scheduled by the PDCCH scrambled by the TC-RNTI of the terminal.
  • the terminal contention resolution ID is included in the MAC sub PDU.
  • the first determining module is also used for:
  • the target sub PDU of the first PDSCH includes the target terminal contention resolution ID of the terminal, it is determined that the terminal contention resolution is successful;
  • the target terminal contention resolution ID matches the CCCH SDU of the terminal in Message 3.
  • the first PDSCH further includes: first C-RNTI related information and/or first HARQ-Ack transmission resource related information;
  • the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.
  • all or part of the information contained in one of said MAC sub PDUs is associated.
  • the apparatus further includes: a second determining module configured to determine the C-RNTI of the terminal.
  • the second determining module is specifically configured to: determine the C-RNTI of the terminal based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located.
  • the second determining module is specifically configured to: if the target sub PDU is the first MAC Sub PDU in the first PDSCH, determine the TC-RNTI of the terminal as the C-RNTI of the terminal.
  • the second determining module is specifically configured to: if the target sub PDU is the Xth MAC sub PDU in the first PDSCH, determine the C-RNTI of the terminal based on X; wherein X is greater than or equal to 1 and X is an integer.
  • the second determining module is specifically configured to: calculate the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal; wherein the Y is determined based on the X.
  • the second determining module is specifically configured to:
  • the decimal number corresponding to the TC-RNTI of the terminal is added to Y to obtain the decimal number corresponding to the C-RNTI of the terminal.
  • the second determining module is specifically configured to: perform a Y-bit position cyclic shift on the TC-RNTI of the terminal to obtain the C-RNTI of the terminal.
  • the second determining module is specifically configured to:
  • the C-RNTI of the terminal is determined.
  • the second determining module is specifically used for:
  • the C-RNTI of the terminal is determined.
  • the second C-RNTI related information includes at least one of the following:
  • the apparatus further includes: a third determination module, configured to determine a target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.
  • a third determination module configured to determine a target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.
  • the third determining module is specifically configured to: determine the target PUCCH transmission resource based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located.
  • the third determining module is specifically used for:
  • the target sub PDU is the first MAC Sub PDU in the first PDSCH, it is determined that the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal is the target PUCCH transmission resource.
  • the third determining module is specifically configured to: if the target sub PDU is the Zth MAC Sub PDU in the first PDSCH, determine the target PUCCH transmission resource based on Z; wherein Z is greater than or is equal to 1 and Z is an integer.
  • the third determining module is specifically configured to: calculate the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal based on Z, to obtain the target PUCCH transmission resource.
  • the third determining module is specifically configured to: add the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal to Z to obtain the target PUCCH transmission resource.
  • the third determination module is specifically configured to: based on the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal and Z, and then divided by the first preset value. The remainder is used to determine the target PUCCH transmission resource; the first preset value is preconfigured or predefined by a protocol.
  • the third determining module is specifically configured to: based on the first HARQ-Ack transmission resource in the target sub PDU The relevant information is used to determine the target PUCCH transmission resource.
  • the third determining module is specifically configured to: determine the target PUCCH transmission resource based on the second HARQ-Ack transmission resource related information in the MAC sub header in the target sub PDU.
  • the second HARQ-Ack transmission resource related information includes at least one of the following: format information; MAC sub header length information; MAC SDU length information; MAC-CE length information; and logical channel ID.
  • the first PDSCH further includes: third indication information, which is used to instruct to continue to receive at least one MAC sub PDU containing the MAC SDU subsequently.
  • the apparatus further includes: a fourth determination module, configured to determine the contention based on the first PDSCH sent by the network side in the case of preconfiguring the repeated transmission of Message 3 or determining the repeated transmission of Message 3 based on the second indication information. solve successfully;
  • the second indication information is preconfigured or sent by the network side.
  • the second indication information is transmitted by the network side through the PDCCH or system information scrambled by the RAR UL grant or the TC-RNTI.
  • the device further includes: a fifth determination module, configured to determine that the contention is successfully resolved based on the first PDSCH sent by the network side when the preamble of the Message 3 sent by the terminal meets the first preset condition .
  • a fifth determination module configured to determine that the contention is successfully resolved based on the first PDSCH sent by the network side when the preamble of the Message 3 sent by the terminal meets the first preset condition .
  • the first preset condition includes at least one of the following:
  • the RSRP value corresponding to the group to which the Preamble belongs is lower than the preset threshold
  • the number of bits corresponding to Message 3 in the group to which the Preamble belongs is greater than the second preset value, and the second preset value is preconfigured;
  • the Message 3 corresponding to the grouping to which the Preamble belongs is repeatedly transmitted;
  • the group to which the Preamble belongs is associated with the first TDRA table, and the first TDRA table corresponds to the scheduling of the Message 3, and/or, the first TDRA table includes the repeated transmission times of the Message 3; the Preamble The belonging group corresponds to the capability of the terminal.
  • the MAC sub PDU transmitted by the first PDSCH includes an S field; the S field is used to indicate whether the subsequent MAC sub PDU is a MAC sub PDU including a MAC SDU.
  • the apparatus further includes: a first receiving module, configured to receive subsequent MAC sub PDUs based on the S domain.
  • the subsequent MAC sub PDU includes RRC signaling
  • the RRC signaling is associated with the first PDSCH containing the sub PDU of the S domain.
  • the first PDSCH further includes at least one of the following: TA; power control command TPC; Channel access-CP extension indication.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • the contention resolution apparatus in this embodiment of the present application may be an apparatus or electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal.
  • the electronic device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the contention resolution apparatus provided in the embodiments of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 5 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • FIG. 8 is a second schematic structural diagram of a contention resolution apparatus provided by an embodiment of the present application.
  • the apparatus includes: a first sending module 810 ; wherein: the first sending module 810 is configured to send the first sending module 810 based on the network side.
  • One PDSCH it is determined that the contention resolution is successful; the first PDSCH includes: at least one terminal contention resolution ID, and the at least one terminal contention resolution ID includes the target terminal contention resolution ID of the terminal.
  • the contention resolution apparatus sends the first PDSCH through the first sending module 810, so that the terminal can determine that the contention resolution is successful based on the target terminal contention resolution ID of the terminal included in at least one terminal contention resolution ID in the first PDSCH.
  • the network side determines that the contention resolution is successful by sending the target terminal contention resolution ID in at least one terminal contention resolution ID to the terminal; at least one terminal contention resolution ID can be implemented. If the corresponding at least one terminal determines that the contention is successfully resolved, it can be achieved that the at least one terminal has successfully resolved the contention at the same time, thereby reducing the access delay.
  • the apparatus further includes: a second sending module, configured to re-send the first PDSCH to all the terminals or the part of the terminals when only the HARQ-Ack resources of some terminals are received; wherein, The all terminals are all terminals that have sent the first PDSCH from the network side.
  • a second sending module configured to re-send the first PDSCH to all the terminals or the part of the terminals when only the HARQ-Ack resources of some terminals are received; wherein, The all terminals are all terminals that have sent the first PDSCH from the network side.
  • the first PDSCH includes: the PDSCH scheduled by the PDCCH scrambled by the TC-RNTI of the terminal.
  • the terminal contention resolution ID is included in the MAC sub PDU.
  • the first PDSCH further includes: first C-RNTI related information and/or first HARQ-Ack transmission resource related information;
  • the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.
  • all or part of the information contained in one of said MAC sub PDUs is associated.
  • the first PDSCH further includes:
  • the third indication information is used to instruct to continue to receive at least one MAC sub PDU that subsequently contains the MAC SDU.
  • an S field is included in the MAC Sub PDU transmitted by the first PDSCH;
  • the S field is used to indicate whether the subsequent MAC Sub PDU is a MAC sub PDU containing a MAC SDU.
  • the subsequent MAC sub PDU includes RRC signaling
  • the RRC signaling is associated with the first PDSCH containing the sub PDU of the S domain.
  • the first PDSCH further includes at least one of the following:
  • the network side determines that the contention resolution is successful by sending the target terminal contention resolution ID in at least one terminal contention resolution ID to the terminal; at least one terminal contention resolution ID can be implemented. If the corresponding at least one terminal determines that the contention is successfully resolved, it can be achieved that the at least one terminal has successfully resolved the contention at the same time, thereby reducing the access delay.
  • the contention resolution apparatus in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the contention resolution device in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the contention resolution apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment in FIG. 6 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • a communication device 900 includes a processor 901 and a memory 902 , which are stored in the memory 902 and can be stored in the processor 901
  • the communication device 900 is a terminal
  • the program or instruction is executed by the processor 901
  • each process of the above method embodiments can be implemented, and the same technical effect can be achieved.
  • the communication device 900 is a network-side device, when the program or instruction is executed by the processor 901, each process of the above method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.
  • FIG. 10 is a schematic diagram of a hardware structure of a terminal device provided by an embodiment of the present application.
  • the terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010, etc. at least part of the components.
  • the terminal 1000 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1010 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes a touch panel 6071 and other input devices 10072 .
  • the touch panel 10071 is also called a touch screen.
  • the touch panel 10071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1001 processes the information from the communication peer end after receiving the information; in addition, sends the information to be transmitted to the communication peer end.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 1009 may be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1009 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1010.
  • the processor 1010 is configured to: the terminal determines that the contention resolution is successful based on the first PDSCH sent by the network side; the first PDSCH includes: at least one terminal contention resolution ID, and the at least one terminal contention resolution ID includes the Target terminal contention resolution ID.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • the first PDSCH includes: a PDSCH scheduled by a PDCCH scrambled by the TC-RNTI of the terminal.
  • the terminal contention resolution ID is included in the MAC sub PDU.
  • the processor 1010 is configured to: if the target sub PDU of the first PDSCH includes the target terminal contention resolution ID of the terminal, determine that the terminal contention resolution is successful; the target terminal contention resolution ID is the same as that of the terminal. CCCH SDU match in Message 3.
  • the first PDSCH further includes: first C-RNTI related information and/or first HARQ-Ack transmission resource related information;
  • the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.
  • all or part of the information contained in one of said MAC sub PDUs is associated.
  • the processor 1010 is configured to: determine the C-RNTI of the terminal.
  • the processor 1010 is configured to: determine the C-RNTI of the terminal based on the sequence of MAC-PDUs in the first PDSCH where the target sub PDU is located.
  • the processor 1010 is configured to: if the target sub PDU is the first MAC sub PDU in the first PDSCH, determine the TC-RNTI of the terminal as the C-RNTI of the terminal.
  • the processor 1010 is configured to: if the target sub PDU is the Xth MAC sub PDU in the first PDSCH, determine the C-RNTI of the terminal based on X; wherein X is greater than or equal to 1 and X is an integer.
  • the processor 1010 is configured to: calculate the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal;
  • the processor 1010 is configured to: add the decimal number corresponding to the TC-RNTI of the terminal and Y to obtain the decimal number corresponding to the C-RNTI of the terminal.
  • the processor 1010 is configured to: perform a Y-bit position cyclic shift on the TC-RNTI of the terminal to obtain the C-RNTI of the terminal.
  • the processor 1010 is configured to:
  • the C-RNTI of the terminal is determined.
  • the processor 1010 is configured to: determine the C-RNTI of the terminal based on the second C-RNTI related information in the MAC sub header in the target sub PDU.
  • the second C-RNTI related information includes at least one of the following: format information; MAC sub header length information; MAC SDU length information; MAC-CE length information; and a logical channel ID.
  • the processor 1010 is configured to: determine a target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.
  • the processor 1010 is configured to: determine the target PUCCH transmission resource based on the sequence of MAC-PDUs in which the target sub PDU is located in the first PDSCH.
  • the processor 1010 is configured to: if the target sub PDU is the first MAC sub PDU in the first PDSCH, determine that the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal is the target PUCCH transmission resource.
  • the processor 1010 is configured to: if the target sub PDU is the Zth MAC Sub PDU in the first PDSCH, determine the target PUCCH transmission resource based on Z; wherein Z is greater than or equal to 1 and Z is Integer.
  • the processor 1010 is configured to: calculate the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal based on Z, to obtain the target PUCCH transmission resource.
  • the processor 1010 is configured to: add the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal to Z to obtain the target PUCCH transmission resource.
  • processor 1010 is used to:
  • the target PUCCH transmission resource is determined based on the remainder after the index value of the PUCCH resource indicated by the PDCCH scrambled by the TC-RNTI of the terminal is added to Z and divided by the first preset value, and the target PUCCH transmission resource is determined;
  • the settings are either preconfigured or predefined by the protocol.
  • the processor 1010 is configured to:
  • the target PUCCH transmission resource is determined based on the first HARQ-Ack transmission resource related information in the target sub PDU.
  • the processor 1010 is configured to: determine the target PUCCH transmission resource based on the second HARQ-Ack transmission resource related information in the MAC sub header in the target sub PDU.
  • the second HARQ-Ack transmission resource related information includes at least one of the following: format information; MAC sub header length information; MAC SDU length information; MAC-CE length information; and logical channel ID.
  • the first PDSCH further includes: third indication information, which is used to instruct to continue to receive at least one MAC sub PDU containing the MAC SDU subsequently.
  • the processor 1010 is configured to: determine that the contention is successfully resolved based on the first PDSCH sent by the network side in the case of preconfiguring the repeated transmission of Message 3 or determining the repeated transmission of Message 3 based on the second indication information;
  • the second indication information is preconfigured or sent by the network side.
  • the second indication information is transmitted by the network side through the PDCCH or system information scrambled by the RAR UL grant or the TC-RNTI.
  • processor 1010 is used to:
  • the first preset condition includes at least one of the following:
  • the RSRP value corresponding to the group to which the Preamble belongs is lower than the preset threshold
  • the number of bits corresponding to Message 3 in the group to which the Preamble belongs is greater than the second preset value, and the second preset value is preconfigured;
  • the Message 3 corresponding to the grouping to which the Preamble belongs is repeatedly transmitted;
  • the group to which the Preamble belongs is associated with the first TDRA table, and the first TDRA table corresponds to the scheduling of the Message 3, and/or, the first TDRA table includes the repeated transmission times of the Message 3;
  • the group to which the Preamble belongs corresponds to the capability of the terminal.
  • an S field is included in the MAC sub PDU transmitted by the first PDSCH;
  • the S field is used to indicate whether the subsequent MAC sub PDU is a MAC sub PDU containing a MAC SDU.
  • the processor 1010 is configured to: receive a subsequent MAC sub PDU based on the S domain.
  • the subsequent MAC sub PDU includes RRC signaling; the RRC signaling is associated with the first PDSCH of the sub PDU including the S domain.
  • the first PDSCH further includes at least one of the following: TA; power control command TPC; Channel access-CP extension indication.
  • the terminal determines that the contention resolution is successful by receiving the target terminal contention resolution ID in at least one terminal contention resolution ID sent by the network side; at least one terminal contention resolution ID can be implemented; At least one terminal corresponding to the ID determines that the contention is successfully resolved, so that the at least one terminal can successfully resolve the contention at the same time, thereby reducing the access delay.
  • terminal device embodiments in the embodiments of this application are product embodiments corresponding to the foregoing method embodiments, and all implementations in the foregoing method embodiments are applicable to the terminal device embodiments, and can also achieve the same or similar technical effects. Therefore, it will not be repeated here.
  • FIG. 11 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.
  • the network side device 1100 includes: an antenna 1101 , a radio frequency device 1102 , and a baseband device 1103 .
  • the antenna 1101 is connected to the radio frequency device 1102 .
  • the radio frequency device 1102 receives information through the antenna 1101, and sends the received information to the baseband device 1103 for processing.
  • the baseband device 1103 processes the information to be sent and sends it to the radio frequency device 1102
  • the radio frequency device 1102 processes the received information and sends it out through the antenna 1101 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1103 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1103 , and the baseband apparatus 1103 includes a processor 1104 and a memory 1105 .
  • the baseband device 1103 may include, for example, at least one baseband board on which multiple chips are arranged, as shown in FIG. 11 , one of the chips is, for example, the processor 1104 , which is connected to the memory 1105 to call the program in the memory 1105 to execute The network devices shown in the above method embodiments operate.
  • the baseband device 1103 may further include a network interface 1106 for exchanging information with the radio frequency device 1102, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in this embodiment of the present application further includes: instructions or programs that are stored in the memory 1105 and run on the processor 1104, and the processor 1104 invokes the instructions or programs in the memory 1105 to execute the modules shown in FIG. 8 .
  • the processor 1104 is configured to: send the first PDSCH; the shown first PDSCH is used by the terminal to determine that the contention resolution is successful; the first PDSCH includes: at least one terminal contention resolution ID, and the at least one terminal contention resolution ID includes all The target terminal contention resolution ID of the terminal.
  • the network side determines that the contention resolution is successful by sending the target terminal contention resolution ID in at least one terminal contention resolution ID to the terminal; at least one terminal contention resolution ID can be implemented. If the corresponding at least one terminal determines that the contention is successfully resolved, it can be achieved that the at least one terminal has successfully resolved the contention at the same time, thereby reducing the access delay.
  • the processor 1104 is configured to: in the case of only receiving the HARQ-Ack resources of some terminals, re-send the first PDSCH to all or the part of the terminals; wherein, all the terminals are the network side All terminals that have transmitted the first PDSCH.
  • the first PDSCH includes: the PDSCH scheduled by the PDCCH scrambled by the TC-RNTI of the terminal.
  • the terminal contention resolution ID is included in the MAC sub PDU.
  • the first PDSCH further includes: first C-RNTI related information and/or first HARQ-Ack transmission resource related information;
  • the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.
  • all or part of the information contained in one of said MAC sub PDUs is associated.
  • the first PDSCH further includes: third indication information, which is used to instruct to continue to receive at least one MAC sub PDU containing the MAC SDU subsequently.
  • the MAC sub PDU transmitted by the first PDSCH includes an S field; the S field is used to indicate whether the subsequent MAC sub PDU is a MAC sub PDU including a MAC SDU.
  • the subsequent MAC sub PDU includes RRC signaling; the RRC signaling is associated with the first PDSCH of the sub PDU including the S domain.
  • the first PDSCH further includes at least one of the following: TA; power control command TPC; Channel access-CP extension indication.
  • the network side determines that the contention resolution is successful by sending the target terminal contention resolution ID in at least one terminal contention resolution ID to the terminal; at least one terminal contention resolution ID can be implemented. If the corresponding at least one terminal determines that the contention is successfully resolved, it can be achieved that the at least one terminal has successfully resolved the contention at the same time, thereby reducing the access delay.
  • the network-side device embodiments in the embodiments of the present application are product embodiments corresponding to the foregoing method embodiments, and all implementation manners in the foregoing method embodiments are applicable to the network-side device embodiments, and can also achieve the same or similar technologies effect, so it is not repeated here.
  • Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing contention resolution method embodiment can be achieved, and can achieve the same In order to avoid repetition, the technical effect will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the above contention resolution method
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run a network-side device program or instruction to implement the above contention resolution method
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

Landscapes

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

Abstract

La présente demande appartient au domaine des communications. Un procédé et un appareil de résolution de contention, un dispositif, et un support d'enregistrement sont divulgués. Ledit procédé consiste à : déterminer, par le biais d'un terminal, sur la base d'un premier PDSCH envoyé par un côté réseau, que cette résolution de contention est réussie, le premier PDSCH comprenant au moins un ID de résolution de contention de terminal, et ledit ID de résolution de contention de terminal comprenant un ID de résolution de contention de terminal cible du terminal.
PCT/CN2022/071783 2021-01-14 2022-01-13 Procédé et appareil de résolution de contention, dispositif, et support d'enregistrement WO2022152205A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110049718.X 2021-01-14
CN202110049718.XA CN114765898A (zh) 2021-01-14 2021-01-14 竞争解决方法、装置、设备及存储介质

Publications (1)

Publication Number Publication Date
WO2022152205A1 true WO2022152205A1 (fr) 2022-07-21

Family

ID=82363653

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/071783 WO2022152205A1 (fr) 2021-01-14 2022-01-13 Procédé et appareil de résolution de contention, dispositif, et support d'enregistrement

Country Status (2)

Country Link
CN (1) CN114765898A (fr)
WO (1) WO2022152205A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180048433A1 (en) * 2015-03-17 2018-02-15 Sony Corporation Telecommunication devices and methods
CN110769517A (zh) * 2018-07-26 2020-02-07 维沃移动通信有限公司 一种随机接入方法及相关设备
CN110933766A (zh) * 2018-09-19 2020-03-27 维沃移动通信有限公司 随机接入信息的获取、发送方法及网络节点
CN111491393A (zh) * 2019-01-25 2020-08-04 华为技术有限公司 通信方法以及装置
CN112153750A (zh) * 2019-06-28 2020-12-29 华为技术有限公司 一种随机接入的方法及通信装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109495975A (zh) * 2017-09-11 2019-03-19 北京三星通信技术研究有限公司 随机接入方法、基站设备及用户设备
CN111787615A (zh) * 2019-04-04 2020-10-16 北京三星通信技术研究有限公司 竞争性上行数据传输的方法、ue、基站、设备及介质
CN111867130B (zh) * 2019-04-30 2023-07-18 华为技术有限公司 一种随机接入方法、装置及存储介质

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180048433A1 (en) * 2015-03-17 2018-02-15 Sony Corporation Telecommunication devices and methods
CN110769517A (zh) * 2018-07-26 2020-02-07 维沃移动通信有限公司 一种随机接入方法及相关设备
CN110933766A (zh) * 2018-09-19 2020-03-27 维沃移动通信有限公司 随机接入信息的获取、发送方法及网络节点
CN111491393A (zh) * 2019-01-25 2020-08-04 华为技术有限公司 通信方法以及装置
CN112153750A (zh) * 2019-06-28 2020-12-29 华为技术有限公司 一种随机接入的方法及通信装置

Also Published As

Publication number Publication date
CN114765898A (zh) 2022-07-19

Similar Documents

Publication Publication Date Title
US20210153259A1 (en) Random access method and related device
JP6147308B2 (ja) 免許不要帯域における伝送を扱う装置及び方法
WO2022152176A1 (fr) Procédé de traitement de transmission et dispositif associé
US12004230B2 (en) Random access method and related device
WO2015113202A1 (fr) Procédé de transmission amélioré par canal physique à accès aléatoire, dispositif réseau et terminal
WO2022218369A1 (fr) Procédé de détermination de ressource de rétroinformation de liaison latérale, terminal, et dispositif côté réseau
WO2022033475A1 (fr) Procédé de transmission de signal d'accès aléatoire, terminal et dispositif côté réseau
WO2022017490A1 (fr) Procédé d'accès aléatoire, procédé de configuration et dispositif associé
WO2018010497A1 (fr) Procédé destiné au traitement d'un processus de demande de répétition automatique hybride, dispositif et système de communications
US20230354404A1 (en) Method and apparatus for determining number of coded modulation symbols, and communications device
US20230138775A1 (en) Method for mapping pusch signal, terminal, and network-side device
US20170135132A1 (en) Method, system and apparatus
WO2022199544A1 (fr) Procédé et appareil de transmission en liaison montante et équipement utilisateur
TWI745866B (zh) 終端與無線網路節點之間的通訊技術
WO2022012618A1 (fr) Procédé et appareil de détermination de ressources, et terminal
WO2022017492A1 (fr) Procédé et appareil de traitement de positionnement et dispositif
WO2022002259A1 (fr) Procédé et appareil de transmission de liaison latérale, et terminal
WO2023083304A1 (fr) Procédé d'accès aléatoire, terminal et dispositif côté réseau
CN110351036B (zh) 信息传输方法、网络设备及终端
WO2022152205A1 (fr) Procédé et appareil de résolution de contention, dispositif, et support d'enregistrement
WO2022002248A1 (fr) Procédé et appareil de transmission de liaison latérale, et dispositif de communication
WO2022033424A1 (fr) Procédé et appareil de transmission de ressources, et dispositif de communication
WO2022012592A1 (fr) Procédé et appareil de transmission d'informations en retour, terminal et dispositif côté réseau
WO2022036560A1 (fr) Procédé de transmission de données et dispositif associé
WO2022022593A1 (fr) Configuration de ressources de rétroaction de liaison latérale, dispositif et équipement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22739081

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22739081

Country of ref document: EP

Kind code of ref document: A1