WO2022152205A1

WO2022152205A1 - Contention resolution method and apparatus, device, and storage medium

Info

Publication number: WO2022152205A1
Application number: PCT/CN2022/071783
Authority: WO
Inventors: 吴凯; 鲍炜
Original assignee: 维沃移动通信有限公司
Priority date: 2021-01-14
Filing date: 2022-01-13
Publication date: 2022-07-21
Also published as: CN114765898A

Abstract

The present application belongs to the field of communications. Disclosed are a contention resolution method and apparatus, a device, and a storage medium. Said method comprises: a terminal determining, on the basis of a first PDSCH sent by a network side, that contention resolution is successful, wherein the first PDSCH comprises at least one terminal contention resolution ID, and the at least one terminal contention resolution ID comprises a target terminal contention resolution ID of the terminal.

Description

Competitive Resolution Methods, Apparatus, Equipment and Storage Media

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202110049718.X filed in China on Jan. 14, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application belongs to the field of communication technologies, and specifically relates to a method, apparatus, device and storage medium for resolving competition.

Background technique

For the competitive random access process, 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.

In the related art, 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.

SUMMARY OF THE INVENTION

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.

In a first aspect, a contention resolution method is provided. The 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.

In a second aspect, a contention resolution method is provided, the 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.

In a third aspect, a contention resolution apparatus is provided, the 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.

In a fourth aspect, a contention resolution apparatus is provided, the apparatus 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.

In a fifth aspect, a terminal device is provided, the terminal device 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.

In a sixth aspect, a network side device is provided, the network side device 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.

In a seventh aspect, 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.

In an eighth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a device program or instruction to implement the first aspect method, or implementing the method as described in the second aspect.

In the embodiment of the present application, in the case of supporting the repeated transmission of Message 3, 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.

Description of drawings

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;

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;

4 is the second schematic diagram of the MAC sub PDU format provided by the embodiment of the present application;

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;

9 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

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.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "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. For example, the first object may be one or multiple. In addition, "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.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "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. 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.

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. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . 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.

The contention resolution method provided by the embodiments of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

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.

Optionally, for the competitive random access process, 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. In this case, 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. The scheduling information in the message 3 PUSCH is transmitted.

Optionally, if the repeated transmission of Message 3 is supported, and/or the network indicates the repeated transmission of Message 3 PUSCH, 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.

Optionally, in the scenario of repeated transmission of Message 3 and/or repeated transmission of Message 3 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.

Optionally, 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.

Optionally, 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.

Optionally, the first PDSCH includes: the PDSCH scheduled by the PDCCH scrambled by the TC-RNTI of the terminal.

Optionally, 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.

Optionally, the first PDSCH received by the terminal from the network side may be Message 4.

Optionally, the terminal contention resolution ID is included in the MAC sub PDU.

Optionally, the terminal contention resolution ID may be included in the MAC sub PDU for transmission.

Optionally, the information contained in different MAC sub PDUs may be different.

Optionally, determining that the contention is successfully resolved based on the first PDSCH sent by the network side includes:

If 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.

Optionally, 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. Message 3 If the CCCH SDU sent in the PUSCH matches the terminal contention resolution ID, 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.

It should be noted that, for a certain terminal, 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.

It should be noted that, for a certain 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. .

Optionally, 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. 3 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. Into the control layer protocol data unit (Media Access Control sub Protocol Data Unit, MAC PDU), the contention can be resolved successfully at the same time.

In the embodiment of the present application, 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.

Optionally, 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;

Wherein, the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.

Optionally, the first PDSCH may further include: first C-RNTI related information, which is used by the terminal to determine its C-RNTI.

Optionally, 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.

Optionally, the first HARQ-Ack transmission resource related information may include: HARQ-Ack transmission resources, and/or HARQ-Ack feedback time offset K1.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Taking the first PDSCH as Message 4, 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.

If additional information needs to be included in the MAC sub PDU, the format of the MAC sub PDU needs to be extended. Taking the first PDSCH including the first C-RNTI related information, the first HARQ-Ack transmission resource related information, and the timing advance (Timing Advance, TA) indication information as an example, 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.

Optionally, for different MAC sub PDU formats, different logical channel IDs can be used to distinguish.

Optionally, all or part of the information contained in one of said MAC sub PDUs is associated.

Optionally, when 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 information included in the same MAC sub PDU may be: associated.

Optionally, when the first C-RNTI related information and the terminal contention resolution ID are included in the MAC sub PDU together, the first C-RNTI related information and the terminal contention resolution ID may both correspond to the same terminal.

Optionally, when the first HARQ-Ack transmission resource-related information and the terminal contention resolution ID are included in the MAC sub PDU together, the first HARQ-Ack transmission resource-related information and the terminal contention resolution ID may both correspond to the same terminal. .

Optionally, when the first HARQ-Ack transmission resource related information and the first C-RNTI related information and the terminal contention resolution ID are included in the MAC sub PDU together, the first HARQ-Ack transmission resource related information and the first C- Both the RNTI related information and the terminal contention resolution ID may correspond to the same terminal.

Optionally, the method further includes:

Determine the C-RNTI of the terminal.

Optionally, after the terminal determines the contention resolution based on the contention resolution ID of the corresponding target terminal, the terminal may further determine the C-RNTI of the terminal.

Optionally, 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.

Optionally, when determining the C-RNTI of the terminal, 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.

Optionally, if the first PDSCH is not defined to include the first C-RNTI related information, or the first PDSCH is defined to include the first C-RNTI related information, and the target sub PDU includes or does not include the first C-RNTI related information. In the case of a 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.

It should be noted that the Cell-Radio Network Temporary Identifier (C-RNTI) is a dynamic identifier allocated by the base station to the terminal. 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.

In the embodiment of the present application, since the target sub PDUs of at least one terminal are different, 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. When different C-RNTIs are assigned, 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.

Optionally, 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:

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.

Optionally, for a terminal, if the terminal determines that its corresponding target sub PDU is the first MAC sub PDU in the first PDSCH it receives, the existing TC-RNTI of the terminal can be used as the terminal's TC-RNTI. C-RNTI.

If the target sub PDU is the X th MAC sub PDU in the first PDSCH, 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.

Optionally, for a terminal, if the terminal determines that its corresponding target sub PDU is the Xth MAC sub PDU in the first PDSCH it receives, the C-RNTI of the terminal can be determined based on X.

Optionally, the determining the C-RNTI of the terminal based on X includes:

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.

Optionally, 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.

Optionally, Y can be equal to X;

Optionally, Y may be equal to X plus 1;

It should be noted that 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.

Optionally, 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.

Optionally, 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. Optionally, calculating the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal, including:

Perform a Y-bit position cyclic shift on the TC-RNTI of the terminal to obtain the C-RNTI of the terminal.

Optionally, Y-bit rotation may be performed on the existing TC-RNTI of the terminal to obtain the C-RNTI of the terminal.

Optionally, in the case that the target sub PDU includes the first C-RNTI related information, the determining the C-RNTI of the terminal includes:

Based on the first C-RNTI related information in the target sub PDU, the C-RNTI of the terminal is determined.

Optionally, in the case that the target sub PDU includes the first C-RNTI related information, the C-RNTI of the terminal may be determined based on the first C-RNTI related information in the target sub PDU.

Optionally, if the C-RNTI of the terminal can be determined only based on the first C-RNTI related information, the terminal can discard the existing TC-RNTI.

Optionally, the determining the C-RNTI of the terminal includes:

Based on the second C-RNTI related information in the MAC sub header in the target sub PDU, the C-RNTI of the terminal is determined.

Optionally, in the case where the target sub PDU includes the first C-RNTI related information, 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;

Optionally, when the target sub PDU does not include or does not define the first C-RNTI related information, 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.

Optionally, the second C-RNTI related information includes at least one of the following:

format information; 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 Control Element, MAC-CE) length information; and a logical channel ID.

Optionally, the second C-RNTI related information may include but is not limited to at least one of the following:

format information;

MAC sub header length information;

MAC SDU length information;

MAC-CE length information;

Logical channel ID.

Optionally, the method further includes:

Determine the target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.

Optionally, after the terminal determines the contention resolution based on its corresponding target terminal contention resolution ID, the terminal may further determine the target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.

Optionally, 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.

Optionally, when determining the target PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH, 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.

Optionally, in the case where the first PDSCH is not defined to include the first HARQ-Ack transmission resource related information, or the first PDSCH is defined to include the first HARQ-Ack transmission resource related information, and in the target sub PDU In the case of including or not including the information related to the first HARQ-Ack transmission resource, 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.

In the embodiment of the present application, since the target sub PDUs of at least one terminal are different, 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.

Optionally, 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:

If 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.

Optionally, for a terminal, if 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.

If the target sub PDU is the Z-th MAC sub PDU in the first PDSCH, the target PUCCH transmission resource is determined based on Z; wherein, Z is greater than or equal to 1 and Z is an integer.

Optionally, for a terminal, if the terminal determines that its corresponding target sub PDU is the X-th MAC sub PDU in the first PDSCH it receives, the target PUCCH transmission resource corresponding to the terminal may be determined based on Z.

Optionally, when determining 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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. .

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.

Optionally, 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.

Optionally, the first preset value may be 16.

Optionally, the value range of the first preset value may be a positive integer greater than 1;

Optionally, 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.

Optionally, in the case that the target sub PDU includes information related to the first HARQ-Ack transmission resource, 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.

Optionally, in the case that the target sub PDU includes information related to the first HARQ-Ack transmission resource, 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. .

Optionally, 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.

Optionally, when the target sub PDU includes the first HARQ-Ack transmission resource related information, 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;

Optionally, in the case that the target sub PDU does not include the information related to the first HARQ-Ack transmission resource or is undefined, 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.

Optionally, 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.

Optionally, the information related to the second HARQ-Ack transmission resource may include, but is not limited to, at least one of the following:

format information;

MAC sub header length information;

MAC SDU length information;

MAC-CE length information;

Logical channel ID.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, when the third indication information is not included in the first PDSCH, 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.

Optionally, the method further includes:

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, based on the first PDSCH sent by the network side, it is determined that the contention is successfully resolved;

The second indication information is preconfigured or sent by the network side.

Optionally, in the case of pre-configuration or 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.

Optionally, in the case of pre-configuration or the network side instructs Message 3 to perform repeated transmission through the second indication information, any of the foregoing method embodiments or a combination of any of the foregoing method embodiments may be performed.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, in the case that 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.

Optionally, in the case that the preamble of Message 3 sent by the terminal satisfies the first preset condition, any of the foregoing method embodiments or a combination of any of the foregoing method embodiments may be performed.

Optionally, 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;

The group to which the Preamble belongs corresponds to the capability of the terminal.

Optionally, 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 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;

Optionally, 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.

Optionally, 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.

Optionally, the method further includes: receiving a subsequent MAC sub PDU based on the S domain.

Optionally, in the case that the subsequent MAC sub PDU indicated in the S field is a MAC sub PDU containing the MAC SDU, it is determined to receive the subsequent MAC sub PDU.

Optionally, the subsequent MAC sub PDU includes radio resource control (Radio Resource Control, RRC) signaling;

The RRC signaling is associated with the first PDSCH containing the sub PDU of the S domain.

Optionally, the subsequent MAC Sub PDU may include RRC signaling associated with the first PDSCH of the sub PDU corresponding to the S domain.

Optionally, the first PDSCH further includes at least one of the following:

TA; Power Control (Transmit Power Control, TPC) command command; Channel access-Cyclic prefix extension Channel access-CP extension indication.

Optionally, the first PDSCH may also include but is not limited to at least one of the following:

TA; TPC; Channel access-CP extension indication.

Optionally, 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.

Figure 5 is the third schematic diagram of the MAC sub PDU format provided by the embodiment of the present application. As shown in Figure 5, 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. is a MAC sub PDU containing a MAC SDU. 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. In the embodiment of the present application, in the case of supporting the repeated transmission of Message 3, 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;

Optionally, in the scenario of repeated transmission of Message 3 and/or repeated transmission of Message 3 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. 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.

Optionally, 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.

In the embodiment of the present application, in the case of supporting the repeated transmission of Message 3, 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.

Optionally, the method further includes:

In the case of receiving only the HARQ-Ack resources of some terminals, re-send the first PDSCH to all terminals or the part of terminals;

Wherein, the network side sends the first PDSCH to all the terminals.

Optionally, if the network side only receives the HARQ-Ack resources of some of the terminals, it can retransmit the first PDSCH, such as retransmitting Message 4;

Optionally, the network side may only include the MAC Sub PDU corresponding to the part of the terminal in the PDSCH.

It should be noted that, in the contention resolution method provided by the embodiments of the present application, the execution body may be a contention resolution apparatus, or a control module in the contention resolution apparatus for executing the contention resolution method. In the embodiment of the present application, 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;

Optionally, 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.

It should be noted here that the above-mentioned device provided in the embodiment of the present application can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, which is not the same as the method embodiment in this embodiment. The parts and beneficial effects will be described in detail.

Optionally, the first determining module is also used for:

If 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;

Optionally, the first PDSCH further includes: first C-RNTI related information and/or first HARQ-Ack transmission resource related information;

Optionally, the apparatus further includes: a second determining module configured to determine the C-RNTI of the terminal.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, the second determining module is specifically configured to:

Optionally, 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.

Optionally, in the case that the target sub PDU includes the first C-RNTI related information, the second determining module is specifically configured to:

Optionally, the second determining module is specifically used for:

Optionally, 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.

Optionally, 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.

Optionally, the third determining module is specifically used for:

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, when the target sub PDU includes information related to the first HARQ-Ack transmission resource, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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 .

Optionally, the first preset condition includes at least one of the following:

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.

Optionally, 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.

Optionally, the apparatus further includes: a first receiving module, configured to receive subsequent MAC sub PDUs based on the S domain.

Optionally, the subsequent MAC sub PDU includes RRC signaling;

Optionally, the first PDSCH further includes at least one of the following: TA; power control command TPC; Channel access-CP extension indication.

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. Exemplarily, 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. As shown in FIG. 8 , 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.

Optionally, 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.

It should be noted here that the above-mentioned device provided by the embodiment of the present application can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, and the same as the method embodiment in this embodiment is not repeated here. The parts and beneficial effects will be described in detail.

Optionally, 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.

Optionally, the first PDSCH further includes:

Optionally, the subsequent MAC sub PDU includes RRC signaling;

Optionally, the first PDSCH further includes at least one of the following:

TA; Power Control Command TPC; Channel access-CP extension indication.

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. Exemplarily, 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.

Optionally, FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 9 , 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 For example, when the communication device 900 is a terminal, when 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. When 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.

Those skilled in the art can understand that 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. 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.

It should be understood that, in this embodiment of the present application, 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.

In the embodiment of the present application, 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. Generally, 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. In addition, 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. 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.

Optionally, the first PDSCH includes: a PDSCH scheduled by a PDCCH scrambled by the TC-RNTI of the terminal.

Optionally, 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.

Optionally, the processor 1010 is configured to: determine the C-RNTI of the terminal.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, the processor 1010 is 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.

Optionally, 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.

Optionally, 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.

Optionally, in the case that the target sub PDU includes the first C-RNTI related information, the processor 1010 is configured to:

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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.

Optionally, processor 1010 is used to:

Optionally, in the case that the target sub PDU includes information related to the first HARQ-Ack transmission resource, the processor 1010 is configured to:

Optionally, 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.

Optionally, 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.

Optionally, processor 1010 is used to:

In the case that the preamble of Message 3 sent by the terminal satisfies the first preset condition, based on the first PDSCH sent by the network side, it is determined that the contention is successfully resolved.

Optionally, the first preset condition includes at least one of the following:

Optionally, the processor 1010 is configured to: receive a subsequent MAC sub PDU based on the S domain.

Optionally, 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 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.

As shown in FIG. 11 , 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 . In the uplink direction, the radio frequency device 1102 receives information through the antenna 1101, and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be sent and sends it to the radio frequency device 1102 , and 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).

Specifically, 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 implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

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.

Optionally, 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. Optionally, the first PDSCH includes: the PDSCH scheduled by the PDCCH scrambled by the TC-RNTI of the terminal.

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.

Wherein, 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 Each process of the embodiment can achieve the same technical effect, and to avoid repetition, it will not be repeated here.

It should be understood that 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.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional elements in the process, method, article, or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that 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. Based on this understanding, 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.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A contention resolution method comprising:

The terminal determines that the contention is successfully resolved based on the first physical downlink shared channel 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 method according to claim 1, wherein the first PDSCH comprises: a PDSCH scheduled by a physical downlink control channel (PDCCH) scrambled by a temporary cell radio network of the terminal temporarily identified by a TC-RNTI.
The contention resolution method according to claim 1 or 2, wherein the terminal contention resolution ID is included in a medium access control layer sub-protocol data unit MAC sub PDU.
The contention resolution method according to claim 3, wherein determining that the contention resolution is successful based on the first PDSCH sent by the network side comprises:

If the target 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 common control channel service data unit CCCH SDU of the terminal in message Message 3.
The contention resolution method according to claim 1, 2 or 4, wherein the first PDSCH further comprises: first cell wireless network temporary identifier C-RNTI related information and/or first hybrid automatic repeat request acknowledgement HARQ- Ack transmits resource-related information;

Wherein, the first C-RNTI related information and/or the first HARQ-Ack transmission resource related information is included in the MAC sub PDU.
The contention resolution method of claim 5, wherein all or part of the information contained in one of said MAC sub PDUs is associated.
The contention resolution method according to claim 4 or 6, wherein the method further comprises:

Determine the C-RNTI of the terminal.
The contention resolution method according to claim 7, wherein the determining the C-RNTI of the terminal comprises:

The C-RNTI of the terminal is determined based on the sequence of the medium access control layer protocol data unit MAC-PDU in the first PDSCH where the target sub PDU is located.
The contention resolution method according to claim 8, wherein the determining the C-RNTI of the terminal based on the order of the MAC-PDU in which the target sub PDU is located in the first PDSCH comprises:

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 contention resolution method according to claim 8, wherein the determining the C-RNTI of the terminal based on the order of the MAC-PDU in which the target sub PDU is located in the first PDSCH comprises:

If the target sub PDU is the X th MAC sub PDU in the first PDSCH, 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 contention resolution method according to claim 10, wherein the determining the C-RNTI of the terminal based on X comprises:

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 contention resolution method according to claim 11, wherein the calculating the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal comprises:

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 contention resolution method according to claim 11, wherein the calculating the TC-RNTI of the terminal based on Y to obtain the C-RNTI of the terminal comprises:

Perform a Y-bit position cyclic shift on the TC-RNTI of the terminal to obtain the C-RNTI of the terminal.
The contention resolution method according to claim 7, wherein, in the case that the target sub PDU includes the first C-RNTI related information, the determining the C-RNTI of the terminal comprises:

Based on the first C-RNTI related information in the target sub PDU, the C-RNTI of the terminal is determined.
The contention resolution method according to claim 7, wherein the determining the C-RNTI of the terminal comprises:

Based on the second C-RNTI related information in the MAC subheader subheader in the target sub PDU, the C-RNTI of the terminal is determined.
The contention resolution method according to claim 15, wherein the second C-RNTI related information includes at least one of the following:

format information; MAC sub header length information; medium access control layer service data unit MAC SDU length information; medium access control layer control information MAC-CE length information; and logical channel ID.
The contention resolution method according to claim 4 or 6, wherein the method further comprises:

Determine the target physical uplink control channel PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the first PDSCH.
The contention resolution method according to claim 17, wherein the determining of the corresponding terminal for transmitting the first PDSCH

The target PUCCH transmission resources of HARQ-Ack include:

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 contention resolution method according to claim 18, wherein the determining the target PUCCH transmission resource based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located comprises:

If 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 contention resolution method according to claim 18, wherein the determining the target PUCCH transmission resource based on the order of the MAC-PDU in the first PDSCH where the target sub PDU is located comprises:

If the target sub PDU is the Z th MAC sub PDU in the first PDSCH, 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 contention resolution method according to claim 20, wherein the determining the target PUCCH transmission resource based on Z comprises:

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 contention resolution method according to claim 21, wherein the calculation of 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 comprises:

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 contention resolution method according to claim 21, wherein the calculation of 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 comprises:

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 contention resolution method according to claim 17, wherein in the case that the target sub PDU includes information related to the first HARQ-Ack transmission resource, the determining of the HARQ-Ack corresponding to the terminal for transmitting the first PDSCH is performed. Ack's target PUCCH transmission resources, including:

The target PUCCH transmission resource is determined based on the first HARQ-Ack transmission resource related information in the target sub PDU.
The contention resolution method according to claim 17, wherein the determining the target PUCCH transmission resource of the terminal comprises:

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 contention resolution method according to claim 25, wherein 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 contention resolution method according to any one of claims 2 or 4 or 6 or 8 to 16 or any one of 18 to 26, wherein the first PDSCH further comprises:

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 competition resolution method according to any one of claims 1 or 2 or 4 or 6 or any one of 8 to 16 or any one of 18 to 26, wherein the method further comprises:

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, based on the first PDSCH sent by the network side, it is determined that the contention is successfully resolved;

The second indication information is preconfigured or sent by the network side.
The contention resolution method according to claim 28, wherein the second indication information is transmitted by the network side through the random access response uplink grant resource RAR UL grant or TC-RNTI scrambled PDCCH or system information.
The competition resolution method according to any one of claims 1 or 2 or 4 or 6 or any one of 8 to 16 or any one of 18 to 26, wherein the method further comprises:

In the case that the preamble of Message 3 sent by the terminal satisfies the first preset condition, it is determined that the contention is successfully resolved based on the first PDSCH sent by the network side.
The contention resolution method according to claim 30, wherein the first preset condition includes at least one of the following:

The RSRP value of the reference signal received power 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 a first 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 includes the repeated transmission times of the Message 3 ;

The group to which the Preamble belongs corresponds to the capability of the terminal.
The contention resolution method according to any one of claims 4 or 6 or 8 to 16 or any one of 18 to 26, wherein the MAC sub PDU of the first PDSCH transmission includes an S field;

The S field is used to indicate whether the subsequent MAC sub PDU is a MAC sub PDU containing a MAC SDU.
The contention resolution method of claim 32, wherein the method further comprises:

Subsequent MAC sub PDUs are received based on the S domain.
The contention resolution method of claim 33, wherein the subsequent MAC sub PDU includes radio resource control RRC signaling;

The RRC signaling is associated with the first PDSCH containing the sub PDU of the S domain.
The contention resolution method according to claim 5, wherein the first PDSCH further comprises at least one of the following:

Timing Advance TA; Power Control Command TPC Command; Channel Access-Cyclic Prefix Extension Channel Access-CP Extention Indication.
A contention resolution method comprising:

The network side sends the first physical downlink shared channel 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.
The contention resolution method of claim 36, wherein the method further comprises:

In the case that the HARQ-Ack resource is confirmed by only receiving the HARQ-Ack resource from some terminals, retransmitting the first PDSCH to all the terminals or the part of the terminals;

Wherein, all the terminals are all the terminals that have sent the first PDSCH from the network side.
A competition resolution device, the device includes:

a first determining module, configured to determine that the contention is successfully resolved based on the first physical downlink shared channel 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 according to claim 38, wherein the first determining module is further configured to:

If the target 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 common control channel service data unit CCCH SDU of the terminal in Message 3.
The contention resolution apparatus of claim 38, wherein the apparatus further comprises:

The second determining module is configured to determine the cell radio network temporary identifier C-RNTI of the terminal.
The contention resolution apparatus according to claim 40, wherein the second determining module is specifically configured to: determine based on the order of the medium access control layer protocol data unit (MAC-PDU) where the target sub PDU in the first PDSCH is located, determine C-RNTI of the terminal.
The contention resolution apparatus according to claim 41, wherein 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 temporary cell radio of the terminal The network temporarily identifies the TC-RNTI as the C-RNTI of the terminal.
The contention resolution apparatus according to claim 41, wherein the second determining module is specifically configured to:

If the target sub PDU is the Xth MAC sub PDU in the first PDSCH, 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 contention resolution apparatus according to claim 43, wherein 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 contention resolution apparatus according to claim 44, wherein 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 contention resolution apparatus according to claim 44, wherein 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 contention resolution apparatus according to claim 40, wherein, in the case that the target sub PDU includes the first C-RNTI related information, the second determining module is specifically configured to:

Based on the first C-RNTI related information in the target sub PDU, the C-RNTI of the terminal is determined.
The contention resolution apparatus according to claim 40, wherein the second determining module is specifically configured to:

Based on the second C-RNTI related information in the MAC sub header in the target sub PDU, the C-RNTI of the terminal is determined.
The contention resolution apparatus of claim 38, wherein the apparatus further comprises:

The third determining module is configured to determine the target physical uplink control channel PUCCH transmission resource corresponding to the terminal for transmitting the HARQ-Ack of the HARQ-Ack for transmitting the hybrid automatic repeat request of the first PDSCH.
The contention resolution apparatus according to claim 49, wherein the third determining module is specifically configured to:

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 contention resolution apparatus according to claim 50, wherein the third determining module is specifically configured to:

If 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 contention resolution apparatus according to claim 50, wherein the third determining module is specifically configured to:

If the target sub PDU is the Z th MAC sub PDU in the first PDSCH, 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 contention resolution apparatus according to claim 52, wherein 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 contention resolution apparatus according to claim 53, wherein the third determining module is specifically configured to:

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 contention resolution apparatus according to claim 53, wherein the third determining module is specifically configured 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 contention resolution apparatus according to claim 49, wherein, in the case that the target sub PDU includes the first HARQ-Ack transmission resource related information, the third determining module is specifically 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 contention resolution apparatus according to claim 49, wherein the third determining module is specifically configured to:

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 contention resolution apparatus according to any one of claims 38 or 39 or 41 to 48 or any one of 50 to 57, wherein the apparatus further comprises:

The fourth determination module is used 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 Message 3 or determining the repeated transmission of the Message 3 based on the second indication information;

The second indication information is preconfigured or sent by the network side.
The contention resolution apparatus of any one of claims 38 or 39 or 41 to 48 or 50 to 57, wherein the apparatus further comprises:

The fifth determination module is 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 competition resolution device, the device includes:

a first sending module, configured to send the first physical downlink shared channel 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.
The contention resolution apparatus of claim 60, wherein the apparatus further comprises:

a second sending module, configured to re-send the first PDSCH to all the terminals or the part of the terminals under the condition that only the HARQ-Ack resources are confirmed by the HARQ-Ack resources from some of the terminals;

Wherein, all the terminals are all the terminals that have sent the first PDSCH from the network side.
A terminal device, comprising 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 as claimed in claims 1 to 35 The steps of any one of the contention resolution methods.
A network-side device, comprising 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 to achieve as claimed in claim 36 to 37 The steps of any one of the contention resolution methods.
A readable storage medium on which programs or instructions are stored, the programs or instructions implementing the steps of the contention resolution method according to any one of claims 1 to 37 when executed by the processor.
A computer software product executed by at least one processor to implement the contention resolution method of any one of claims 1 to 37.
A terminal device comprising the terminal device configured to perform the contention resolution method of any one of claims 1 to 35.
A network side device, comprising the network side device being configured to perform the contention resolution method as claimed in claim 36 or 37.
A chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor for running a program or an instruction to implement the competition as claimed in any one of claims 1 to 37 Solution.