CN115134919A

CN115134919A - Time unit determination method, device, terminal and network side equipment

Info

Publication number: CN115134919A
Application number: CN202110328644.3A
Authority: CN
Inventors: 杨坤; 吴凯; 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-09-30

Abstract

The application discloses a time unit determining method, a device, a terminal and network side equipment, belonging to the technical field of communication, wherein the time unit determining method of the embodiment of the application comprises the following steps: the terminal determines an available time unit; wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units.

Description

Time unit determination method, device, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a time unit determination method, a time unit determination device, a terminal and network side equipment.

Background

In a New Radio (NR) system, coverage performance of a Message 3(Message3, Msg3) is poor compared with coverage performance of other channels, which makes it difficult for a terminal in an area with poor signal coverage quality to access a cell. Therefore, NR Rel-17 introduces a mechanism of Msg3 repeat transmission (multiple transmission) to improve the coverage performance of Msg 3. Currently, the NR system supports single Msg3 transmission, and a sending slot of Msg3 can be determined according to scheduling information of a Message 2(Message2, Msg2) or a Physical Downlink Control Channel (PDCCH) scrambled by a temporary cell radio network temporary identifier (TC-RNTI). However, when the Msg3 repeats transmission, the Msg3 needs to occupy multiple slots. The terminal and the network side device need to determine which slots in the subsequent slots can be used for the Msg3 repeated transmission, and particularly determine whether the flexible slot or the slot containing the flexible symbol can be used for the Msg3 repeated transmission. Further, since the terminal cannot perform complicated channel measurement or beam training procedure in the initial access phase, the data transmission in the initial access phase, such as Msg2 PDSCH, Msg4 PDSCH, Msg3 PUSCH, has poor coverage performance compared to the PDSCH or PUSCH in the connected state. In order to improve the coverage performance of data transmission in the initial access phase, a repeated transmission mode can be used to improve the coverage performance.

A method for determining uplink and Downlink time slot configuration by a terminal is defined in an NR system, and time slot configuration at a cell level and a user level is realized through Radio Resource Control (RRC) signaling and Downlink Control Information (DCI), so that flexible uplink and Downlink time slot configuration is provided for the terminal. However, the timeslot configuration at the user level needs to be in a connected state to configure all the uplink and downlink timeslot configuration information at the cell level and the user level to the terminal. In the initial access phase, the terminal can only obtain the uplink and downlink time slot configuration of the cell level. And in the connected state, the flexible symbols configured at the cell level can be configured into downlink/uplink symbols through user-level configuration, or downlink/uplink transmission is scheduled. The terminal initially accessing the terminal cannot acquire the uplink and downlink timeslot configuration at the user level, and may cause a downlink transmission collision between the repeated transmission Msg3 and the connected terminal on a flexible timeslot or symbol. If the initial access terminal cannot transmit data by using the flexible time slot or symbol but only uses the uplink/downlink time slot/symbol configured at the cell level to transmit data, the transmission efficiency is very low for the case of repeated transmission, and the initial access time is increased. For example, for Msg3 repeat transmission, for TDD mode cells, the terminal can only use uplink slots to send Msg3, and then the terminal needs to go through multiple slot configuration cycles to complete the expected Msg3 repeat times. If the Msg3 can be sent using a flexile slot or symbol, the time for the Msg3 to repeat the sending will be shortened. Further, similar problems are encountered if the Msg2, MsgB, Msg4 or PUCCH retransmission for HARQ-Ack for Msg4/MsgB needs to be transmitted repeatedly.

The related time slot determining method cannot guarantee that the terminal and the network side device in the non-connected state have consistent understanding on the time slots of the Physical Downlink Shared Channel (PDSCH)/the Physical Uplink Shared Channel (PUSCH)/the Physical Uplink Control Channel (PUCCH), cannot guarantee successful repeated transmission of the PDSCH/PUSCH/PUCCH, and has low transmission efficiency.

Disclosure of Invention

The embodiment of the application provides a time unit determining method, a time unit determining device, a terminal and network side equipment, and can solve the problems that the terminal and the network side equipment in a non-connected state cannot guarantee consistent understanding of the time slots for repeatedly transmitting PDSCH/PUSCH/PUCCH, so that repeated transmission of the PDSCH/PUSCH/PUCCH fails and transmission efficiency is low.

In a first aspect, a method for determining a time unit is provided, and is applied to a terminal, and the method includes:

the terminal determines an available time unit;

wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units.

In a second aspect, a method for determining a time unit is provided, and is applied to a network side device, and the method includes:

a network side device sends a downlink signaling to a terminal, wherein the downlink signaling carries indication information of an available time unit;

wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units;

wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

In a third aspect, there is provided a time unit determining apparatus, comprising:

a first determination unit for determining an available time unit;

In a fourth aspect, there is provided a time unit determination apparatus, the apparatus comprising:

a first sending unit, configured to send a downlink signaling to a terminal, where the downlink signaling carries indication information of an available time unit;

wherein the downlink signaling comprises at least one of: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

In a sixth aspect, a terminal is provided, which includes a processor and a communication interface, wherein the processor is configured to determine an available time unit; wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units.

In a seventh aspect, a network-side device is provided, which includes a processor, a memory, and a program or an instruction stored on the memory and executable on the processor, and when executed by the processor, the program or the instruction implements the steps of the method according to the second aspect.

In an eighth aspect, a network side device is provided, which includes a processor and a communication interface, where the communication interface is configured to send a downlink signaling to a terminal, and the downlink signaling carries indication information of an available time unit; wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units; wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

In a ninth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method of the first aspect or the steps of the method of the second aspect.

In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect.

In an eleventh aspect, there is provided a computer program/program product stored on a non-volatile storage medium, the program/program product being executable by at least one processor to perform the steps of the method according to the first aspect or to perform the steps of the method according to the second aspect.

In the embodiment of the application, the terminal determines the available time unit for transmission of the first information, and the transmission of the first information occupies a plurality of time units of the available time unit, so that the terminal and the network equipment in a non-connected state can have consistent understanding on the time unit for repeatedly transmitting the PDSCH/PUSCH/PUCCH, thereby ensuring that the PDSCH/PUSCH/PUCCH is successfully repeatedly transmitted and improving the transmission efficiency.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic flowchart of a time unit determining method according to an embodiment of the present disclosure;

fig. 3 is a second schematic flowchart of a time cell determination method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a time unit determining apparatus according to an embodiment of the present application;

fig. 5 is a second schematic structural diagram of a time unit determining apparatus according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic hardware structure diagram of a terminal implementing the embodiment of the present application;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and claims means at least one of connected objects, and a character "/" generally means that the former and latter related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (Code Division Multiple Access,CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in embodiments of the present application, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) ^th Generation, 6G) communication system.

Fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Computer (Tablet Computer), a Laptop Computer (Laptop Computer) or called as a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, and the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. 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, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

NR supports two types of random access procedures: a 4-step Random access channel (4-step RACH) type for Msg1 and a 2-step RACH type for MsgA. Both types of Random Access (RA) procedures support Contention-based Random Access (CBRA) and Contention-free Random Access (CFRA). The 2-step RACH procedure is generally applied to areas with better coverage, shortening the terminal access time. For areas with poor signal coverage, the terminal should access the cell using a 4-step RACH procedure.

In 4-step RACH, UE firstly sends Msg1 to network side equipment, wherein the Msg1 comprises a preamble; after the UE sends the preamble, the UE monitors a PDCCH in a Random Access Response (RAR) time window, and receives an RAR scheduled by the PDCCH scrambled with a Random Access radio network temporary identifier (RA-RNTI) in a fallback DCI format, i.e., DCI1_ 0. If the preamble index in the RAR is the same as the preamble index sent by the UE, the UE considers that the RAR is successfully received, and at this time, the UE may stop monitoring the RAR and send Msg3 according to an authorization indication carried in the RAR; msg3 is transmitted on an Uplink shared channel (UL-SCH), and uses Hybrid Automatic Repeat reQuest (HARQ), scrambles PDCCH with TC-RNTI indicated by RAR, and schedules retransmission of Msg3 with fallback (fallback) DCI format, DCI0_ 0. The unique Identity of each UE needs to be included in Msg 3. This flag will be used for the conflict Resolution context Resolution of step four. After receiving the Msg3, the network side device schedules the DCI0_0 scrambled by TC-RNTI to the Msg4, and when the UE successfully decodes a terminal conflict Resolution Identity media access control entity (UE context Resolution Identity MAC control element) contained in the Msg4 and the UE context Resolution Identity sent by the Msg3, the UE considers that the random access is successful and sets the TC-RNTI carried in the RAR as the C-RNTI, namely completing the 4-step random access. It should be noted that in the four-step random access procedure and the two-step random access procedure, all the steps are single transmission, that is, each transmission only occupies one time slot, and the terminal device only needs to receive and transmit the time slots according to a fixed timing relationship. The network equipment ensures that the random access terminal does not conflict with other terminals through an internal scheduling algorithm.

When Msg3 repeats transmission, Msg3 needs to occupy multiple slots. The terminal can determine the first transmission time slot of the Msg3 according to the timing relation; in addition, the terminal and the base station need to determine which of the subsequent plurality of time slots can be used for the Msg3 repeat transmission. In particular, it is determined whether a flexible slot or a slot containing flexible symbols can be used for Msg3 retransmission.

The NR system has flexible uplink and downlink slot configurations. The types of OFDM symbols of the radio resource are of three types: downlink symbols DL symbol, uplink symbols UL symbol and flexible symbols flexible symbol. The flexible symbols may be used for transmitting downlink signals and also for transmitting uplink signals, and the actual transmission situation is determined by the actual scheduling situation of the system. The uplink and downlink time slot Configuration of the NR adopts a semi-static Configuration mode, and flexible time slot Configuration is realized through RRC signaling (tdd-UL-DL-Configuration common and tdd-UL-DL-Configuration deleted) and downlink control information (DCI 2_ 0).

In the initial access phase, the terminal can only obtain the uplink and downlink time slot configuration of the cell level. In a connected state, the flexible symbols configured at the cell level can be configured into downlink/uplink symbols through user-level configuration, or downlink/uplink transmission is scheduled. The terminal initially accessing the terminal cannot acquire the uplink and downlink timeslot configuration at the user level, and may cause a downlink transmission collision between the repeated transmission Msg3 and the connected terminal in the flexible timeslot or in the compliance. If the initial access terminal cannot transmit data by using the flexible time slot or symbol but only uses the uplink/downlink time slot/symbol configured at the cell level to transmit data, the transmission efficiency is very low for the case of repeated transmission, and the initial access time is increased. Further, similar problems are encountered if the Msg2, MsgB, Msg4 or PUCCH retransmission for HARQ-Ack for Msg4/MsgB needs to be transmitted repeatedly. I.e. it needs to be determined whether a flexible slot or symbol is available for repeated transmission. Similar to the PUCCH retransmission for HARQ-Ack for MSG4/B and MSG3, these slots or symbols need to be guaranteed to be used for uplink transmission; for MSG2, repeated transmission of PDSCH of MSG4 is required to guarantee that these time slots or symbol networks are used for downlink transmission.

In summary, a new slot determination rule needs to be defined, so that the slots for retransmitting the PDSCH/PUSCH/PUCCH in the unconnected state are ensured to have consistent understanding, the repeated transmission of the PDSCH/PUSCH/PUCCH is ensured to be successful, and the transmission efficiency is improved.

The time unit determining method, the time unit determining apparatus, the terminal and the network side device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Fig. 2 is a schematic flowchart of a time unit determining method according to an embodiment of the present application. As shown in fig. 2, the method comprises the steps of:

step 200, the terminal determines an available time unit;

The time unit may be a slot, an OFDM symbol, a subframe, or a radio frame. Optionally, each time unit may include at least one slot, OFDM symbol, subframe, or radio frame.

It is to be appreciated that a terminal determines an available time unit for transmission of first information, the transmission of the first information occupying a plurality of time units of the available time unit. In particular, the terminal transmits multiple copies of the first information over multiple time units in a repetitive transmission.

If the transmission of the first information is uplink transmission, the available time unit is an available uplink time unit; and if the transmission of the first information is downlink transmission, the available time unit is an available downlink time unit.

Optionally, the terminal determines an available uplink timeslot, where the available uplink timeslot is used for transmission of Msg3, and the transmission of Msg3 occupies multiple timeslots of the available uplink timeslot.

In the embodiment of the application, the terminal determines the available time unit for transmission of the first information, and the transmission of the first information occupies a plurality of time units of the available time unit, so that the terminal and the network equipment in a non-connected state have consistent understanding on the time unit for repeatedly transmitting the PDSCH/PUSCH/PUCCH, the success of repeated transmission of the PDSCH/PUSCH/PUCCH is ensured, and the transmission efficiency is improved.

Optionally, the first information includes at least one of:

message 3Msg 3;

a physical uplink control channel PUCCH for HARQ-ACK of Msg4/MsgB carrying a hybrid automatic repeat request of message 4 or message B;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

Optionally, the determining, by the terminal, an available time unit includes:

a terminal receives a downlink signaling sent by a network side device, and determines an available time unit according to indication information of the available time unit carried in the downlink signaling; alternatively, the first and second liquid crystal display panels may be,

the terminal determines the available time units based on the time unit configuration rule predefined by the protocol.

Optionally, Msg1 is sent at the terminals covering the restricted area (the parameters of Msg1 may be the same as those of the existing protocol or newly defined parameters for Msg3 repeating the transport function). The network side device detects Msg1 and configures Msg3 for the terminal to repeat the transmission according to the signal quality of Msg 1.

In an embodiment, the downlink signaling may be scheduling signaling for first information transmission, where the scheduling signaling for first information transmission carries indication information of an available time unit, and the scheduling signaling is carried on a PDCCH or a PDSCH.

In one embodiment, the downlink signaling may be higher layer signaling, such as RRC signaling, tdd-UL-DL-Configuration common and tdd-UL-DL-Configuration dedicate. The indication information of the available time units is carried in RRC signaling.

In one embodiment, the downlink signaling may be a system message. The indication information of the available time units is carried in the system message.

Optionally, the downlink signaling is a higher layer signaling or a combination of a system message and a physical layer signaling. The high layer signaling or system message contains various optional available time unit configuration information, and the available time unit configuration information is dynamically indicated through the physical layer signaling.

Alternatively, the indication information of the available time unit may indicate the configuration information of the available time unit in a display manner, or indicate the configuration information of the available time unit in an implicit manner.

Wherein the available time unit configuration information comprises at least one of:

a time unit available for transmitting the first information within a time unit configuration period;

a transmission direction of a time unit available for transmitting the first information within a time unit configuration period;

the transmission direction of a flexible slot/symbol within one time unit configuration period.

The time unit configuration period may be a cycle period of upper and lower time slots defined by the network device.

Optionally, the indication information of the available time unit is used to display or implicitly indicate at least one of the following: the method includes the steps that a time unit which can be used for transmitting first information in a time unit configuration period, the transmission direction of the time unit which can be used for transmitting the first information in the time unit configuration period, and the transmission direction of a flexible time slot/symbol in the time unit configuration period.

Alternatively, the implicit indication available time unit may be determined by the first transmission slot of the first information.

For example, when the terminal performs the Msg3 retransmission, the available uplink time slot for Msg3 retransmission is determined explicitly or implicitly through the Msg3 scheduling signaling of the network side device. The display mode is to display and indicate available uplink time slots in the scheduling signaling. The implicit way is determined by the Msg3 first transmission slot. For example, a × M slots need to be occupied by the Msg3 repeatedly sending a × M times, the first slot sent by the Msg3 is determined by the schedule information of the Msg2, M consecutive slots from the first slot are all available slots, and the slot at the same position in a consecutive a time unit configuration cycles of the current time unit configuration cycle is an available slot. The value of M is predefined by a downlink signaling dynamic indication or a protocol.

Optionally, the terminal determines the available time unit according to the indication information of the available time unit carried in the downlink signaling sent by the network side device and the configured configuration result of the uplink and downlink time units.

For example, the terminal determines the available uplink time slot according to the RRC message tdd-UL-DL-configuration common configured by the system and the indication information in the PDCCH or PDSCH. The available uplink timeslot may include an uplink timeslot and an uplink symbol indicated in the RRC message and a flexible indicated in the RRC message, and the indication information indicates the uplink timeslot and symbol.

In an alternative embodiment, the terminal determines the available time units based on the time unit configuration rules predefined by the protocol. For example, the value M is predefined in a protocol, and when the first information is transmitted, the terminal determines the available time unit by using a default value M, or the terminal selects the time unit with the same transmission direction as the available time unit only according to the uplink and downlink timeslot configuration configured by the system information.

In the embodiment of the application, the terminal determines an available time unit for transmission of the first information based on a time unit configuration rule predefined by a downlink signaling or a protocol sent by the network side device, and the transmission of the first information occupies a plurality of time units of the available time unit, so that the terminal and the network side device in a non-connected state have consistent understanding on the time unit for repeatedly sending the PDSCH/PUSCH/PUCCH, the PDSCH/PUSCH/PUCCH is ensured to be transmitted successfully repeatedly, and the transmission efficiency is improved.

The following describes how the indication information of the available time unit is specifically carried in the downlink signaling.

Optionally, the determining the available time unit according to the indication information of the available time unit carried in the downlink signaling includes at least one of:

under the condition that the downlink signaling is carried in the PDCCH, determining an available time unit according to a fixed field of Downlink Control Information (DCI) carried in the PDCCH;

and under the condition that the downlink signaling is carried on the PDSCH, determining an available time unit according to the first content carried in the PDSCH.

It can be understood that, in an embodiment, the downlink signaling is carried in a PDCCH, and a fixed field of downlink control information DCI carried in the PDCCH is used to indicate available time unit configuration information.

Optionally, the determining, according to the fixed field of the downlink control information DCI carried in the PDCCH, an available time unit includes at least one of:

for the initial transmission of the first information, determining an available time unit according to a fixed field in first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) carried in the PDCCH;

and for the transmission or repeated transmission of the first information, determining an available time unit according to a fixed field in a second DCI scrambled by a temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

Optionally, the PDCCH may carry RA-RNTI scrambled DCI1_0 for the first transmission of Msg3, TC-RNTI scrambled DCI0_0 for the retransmission (retransmission) of Msg3, TC-RNTI scrambled DCI0_0 for the retransmission of Msg4, or a newly defined DCI in a non-connected state.

Optionally, the first DCI is DCI1_0, and the second DCI is DCI0_ 0.

Optionally, for the initial transmission of the first information, a fixed field in the first DCI scrambled by the random access radio network temporary identity RA-RNTI carried in the PDCCH is used to indicate available time unit configuration information.

For example, for Msg3 initial transmission (initial transmission), a fixed field in the RA-RNTI scrambled DCI1_0 is used to indicate configuration information of the available uplink slots.

Optionally, for transmission or repeated transmission of the first information, determining an available time unit according to a fixed field in the second DCI scrambled by the temporary cell radio network temporary identifier TC-RNTI carried in the PDCCH.

For example, for Msg3 retransmission (repeated transmission), a fixed field in the TC-RNTI scrambled DCI0_0 is used to indicate configuration information of available uplink slots.

For example, for Msg4 transmission, a fixed field in the TC-RNTI scrambled DCI0_0 is used to indicate configuration information for the available uplink slots.

In an embodiment, the downlink signaling is carried on the PDSCH, and the first content carried in the PDSCH is used as the indication information of the available time unit, that is, the first content carried in the PDSCH is used to indicate the configuration information of the available time unit.

Optionally, the determining an available time unit according to the first content carried in the PDSCH includes at least one of:

for the primary transmission of the first information, determining an available time unit according to a Random Access Response (RAR) of a message2 in a first format carried in the PDSCH;

for the transmission of the first information, determining an available time unit according to a message 4Msg4 in a second format carried in the PDSCH;

wherein, the Msg2 RAR in the first format is obtained by compressing a partial field in an RAR uplink UL grant or redefining a partial field in an RAR UL grant;

wherein the Msg4 of the second format is obtained through a fixed field contained in the Msg 4.

Optionally, for the Msg3 initial transmission, the Msg2 RAR PDSCH uses a new format, compresses part of fields in the RAR UL grant, uses the compressed fields to carry the indication information of the available time unit, or redefines the fields in the RAR UL grant, and adds a function of indicating the available time unit. Specifically, for example, a Time Domain Resource Allocation (TDRA) field or a Transmit Power Control (TPC) field is added with a corresponding parameter definition, and when indicating the TDRA or TPC information, an available uplink timeslot is indicated at the same Time.

Optionally, for the Msg4 transmission, a fixed field contained in Msg4 is used to carry the indication of the available time units.

In the embodiment of the present application, a possible implementation manner of indication information of an available time unit carried/carried in a scheduling signaling is provided, where a terminal determines an available time unit for transmission of first information by obtaining information of a corresponding field in the scheduling signaling, and the transmission of the first information occupies multiple time units of the available time unit, so that a terminal and a network device in a non-connected state can have consistent understanding on the time unit for repeatedly transmitting PDSCH/PUSCH/PUCCH, and it is ensured that PDSCH/PUSCH/PUCCH is successfully repeatedly transmitted.

Optionally, the indication information of the available time unit satisfies at least one of the following:

the indication information of the available time unit indicates that x time units which are continuously transmitted from the first time unit of the first information transmission are available time units, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

the indication information of the available time unit indicates one of a plurality of candidate uplink and downlink configuration combinations, and the candidate uplink and downlink configuration combinations are predefined by a protocol or configured by system information or configured by high-level signaling;

the indication information of the available time unit indicates the transmission direction of the first time unit of the first information transmission starting with the subsequent y time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

the indication information of the available time unit comprises a time unit format, and the time unit format is used for indicating the transmission direction of the flexible time unit configured by the network side equipment;

wherein x and y are positive integers.

It is understood that the indication information of the available time unit has the following possible expression forms or contents:

indicating that x time units are available from the beginning of the first time unit of the first information transmission, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

or, one of a plurality of candidate uplink and downlink configuration combinations is indicated:

and combining the uplink configuration and the downlink configuration into an n-bit sequence, wherein the value of each bit represents the transmission direction of the corresponding time unit in a time unit configuration period.

Wherein, the time unit corresponding to the first bit of the n-bit sequence is one of the following:

a starting time unit of a time unit configuration period;

the z-th time unit after the time unit of the physical channel carrying the indication information of the available time unit;

scheduling a first time unit of the first information transmission;

a time unit determined based on other reference time unit determination modes;

wherein n and z are positive integers.

Or, indicating the transmission direction of the first time unit of the first information transmission starting with the subsequent y time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

or, the time unit format is indicated according to the format configured by the uplink and downlink time slots in the system message. For example, the indication information of the available time units indicates the number of downlink time units and the number of uplink time units in one time unit configuration period, respectively. And determining the available time unit according to the up-down time unit configuration rule defined by the protocol.

Alternatively, the indication information may function to directly indicate the location of the available time units; or indicating the uplink and downlink transmission directions of the subsequent time units, wherein the time units in the same transmission direction as the first information are available time units.

In the embodiment of the application, possible expression forms of the indication information of the available time units are provided, the terminal determines the available time units for transmission of the first information by acquiring the indication information of the available time units, and the transmission of the first information occupies a plurality of time units of the available time units, so that the terminal and the network equipment in a non-connected state have consistent understanding on the time units for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH repeated transmission is ensured to be successful.

It should be noted that the indication information of the available time unit should not collide with the transmission direction transmission of each time unit in the uplink and downlink time unit configuration result configured by the system (e.g. configured by RRC signaling tdd-UL-DL-configuration common), that is, for a certain time slot or symbol, if the system information is configured as downlink or uplink, the indication information should not be configured as uplink or downlink. Therefore, if a collision occurs, a rule needs to be defined to determine the transmission direction of the colliding slots or symbols, i.e. to define the priority of the system configuration information and the indication information.

Optionally, the determining, by the terminal, an available time unit further includes:

determining the transmission direction of a conflict time unit according to a preset rule under the condition that the indication information of the available time unit conflicts with the transmission direction of the time unit configured by the network side equipment;

optionally, the preset rule includes at least one of the following:

if the uplink/downlink time unit indicated by the indication information contains a downlink/uplink time unit configured by RRC, the indication information is invalid;

determining the transmission direction of the time unit with the conflict according to RRC configuration;

if the time unit indicated by the indication information conflicts with a time unit of a Synchronization Signal Block (SSB) or a Control resource set (CORESET) #0, the indication information is invalid, or the time unit of the SSB or CORESET #0 is not affected by the indication information;

and if the time unit indicated by the indication information is configured as a flexible time unit in the RRC, determining that the time unit is an available time unit.

It will be appreciated that, in general, the priority of the system configuration information is higher than the priority of the indication information.

Optionally, in an uplink and downlink time unit configuration period, the available time unit for the first information transmission may be a first time unit that only includes the indication information, or the first time unit indicated by the indication information and a second time unit indicated in the system configuration information, where the transmission directions of the first time unit and the second time unit are the same.

For example, in one uplink and downlink timeslot configuration period, the available uplink timeslot for Msg3 to repeatedly send may be an uplink timeslot only including the indication information, or a timeslot indicated by the indication information and an uplink timeslot indicated in the RRC configuration.

In the embodiment of the present application, a solution is provided when there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, so that the efficiency of the PDSCH/PUSCH/PUCCH repeat transmission can be effectively improved, and the time for completing the repeat transmission can be shortened.

Optionally, the valid time of the available time unit includes at least one of:

and in the time of the repeated transmission of the first information, the repeated transmission of the first information is carried out according to the available time unit indicated by the initial transmission of the first information, the first information is transmitted at the same time unit position in the next time unit configuration period, and after the repeated transmission of the first information is completed, the available time unit configuration is invalid.

Before entering a connection state to obtain indication information of new uplink and downlink time slot configuration, using an available time unit configuration result of the first information;

and the terminal is only valid in the current time unit configuration period, wherein for the next time unit configuration period, the terminal monitors the corresponding configuration information.

Optionally, after the first information is repeatedly transmitted, the RRC configured timeslot configuration is restored to work.

Optionally, the Msg3 retransmission also uses the uplink and downlink slot configuration configured during the Msg3 initial transmission, that is, the retransmission operation of the Msg3 repeated transmission is performed according to the available uplink slot indicated by the Msg3 initial transmission.

For example, the system schedules the Msg3 to repeat transmission four times, and the indication information indicates that two consecutive slots are used for transmitting Msg3 in one uplink and downlink slot period. The terminal determines the first slot (i.e., the starting slot) of the Msg3 transmission according to the received downlink scheduling information (DCI scrambled by RA-RNTI and RAR) and transmits two slots consecutively, and transmits Msg3 at the same slot position in the next uplink and downlink slot configuration period.

For example, Msg3 initial transmission fails, the system schedules Msg3 retransmissions and uses the available time cell configuration parameters at Msg3 initial transmission.

Optionally, the terminal uses the available time unit configuration result of the first information until receiving tdd-UL-DL-configuration dedicate.

Optionally, the uplink message (e.g., HARQ process for Msg4) after the Msg3 may determine the uplink timeslot by using the uplink and downlink timeslot configuration determined in the Msg3 stage, and send the uplink message. For example, after determining the transmission direction of each slot and symbol in the current slot configuration period according to the indication information, in the subsequent transmission flow, communication is performed according to the uplink and downlink configuration result determined in the Msg3 stage until new configuration information is received.

Optionally, the available time unit is only valid in the current time unit configuration period, and for the next time unit configuration period, the terminal monitors the corresponding configuration information.

In the embodiment of the application, the effective time of the available time unit is provided, and the efficiency of repeated transmission of the PDSCH/PUSCH/PUCCH can be effectively improved.

The time unit determination method provided by the embodiment of the application is not only suitable for transmitting the Msg3, but also suitable for transmitting messages such as PUCCH for HARQ-ACK of Msg4/MsgB, Msg2, MsgB and Msg 4.

Optionally, in a case that the first message is Msg3, the determining, by the terminal, an available time unit includes:

determining a first time unit transmitted by the Msg3 according to the result of the Msg2 scheduling or the DCI scheduling scrambled by the TC-RNTI, updating a corresponding time unit in a time unit configuration period to be an uplink time unit, and determining an available uplink time unit in the corresponding period by adopting the same configuration result in a subsequent time unit configuration period.

It is specified in existing protocols that if a system message indicates that a slot is flexible, schedule-based Msg3 may be transmitted on that slot.

The validity time of the updated uplink timeslot configuration result may last until the Msg3 finishes repeating transmission or new timeslot configuration information becomes valid.

Optionally, in a case that the first message is Msg3, the terminal determines an available time cell based on a time cell configuration rule predefined by a protocol, where the determination includes at least one of:

updating an uplink time unit determined by a Physical Random Access Channel (PRACH) into an available time unit of the Msg 3; optionally, if the Msg3 time-frequency resource conflicts with the PRACH time-frequency resource, the time unit is unavailable;

in the existing protocol, if a certain flexible slot or symbol is configured to transmit a Sounding Reference Signal (SRS), PUCCH, PUSCH or RACH is considered as an uplink slot or symbol.

And determining the time unit configuration result of the cell according to the time unit configuration results of other cells in a Carrier Aggregation (CA) scene.

Optionally, if a certain timeslot or symbol in the time unit configuration result of another cell is uplink, the timeslot or symbol corresponding to the cell is also uplink.

Optionally, in a case that the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the terminal determines an available time unit, where the available time unit includes at least one of:

determining an uplink available time unit through indication information of the available time unit carried in the PDCCH of the Msg4/MsgB PDSCH or the scheduling Msg 4/MsgB;

and repeatedly transmitting the configuration result of the corresponding available uplink time unit according to the Msg3, or determining the available uplink time unit in the current time unit configuration period according to the configuration result of random access time (RO) resources of a random access channel RACH, or according to the uplink and downlink configuration results of other cells.

That is, the available uplink time slot of PUCCH for HARQ-ACK of Msg4/MsgB can be configured by the display of the PDCCH of Msg4/MsgB PDSCH or scheduling Msg 4/MsgB. That is, the indication information of the corresponding available uplink timeslot is carried when the content resolution message is sent.

The available uplink slots of PUCCH for HARQ-ACK of Msg4/MsgB can also be configured implicitly. And if the Msg3 repeatedly transmits and configures the available uplink time slot, determining the (PUCCH) available uplink time slot in the current time slot configuration period according to the configuration result of the RO resource of the RACH or the uplink and downlink configuration result of other cells.

Optionally, in a case that the first message is Msg2, MsgB, or Msg4, the determining, by the terminal, an available time unit includes:

the available downstream time units are determined from the time units of SSB or CORESET # 0.

Optionally, the network side device sends DCI for scheduling PDSCH of Msg2/MsgB/Msg 4. The DCI includes the number of times of repeated transmission of the PDSCH of Msg2/MsgB/Msg4 and an available downlink slot. The number of repetitions of the PDSCH may be indicated explicitly using a field of DCI, or may be indicated jointly after being associated with TDRA information, or may have protocol provisions or system message configurations.

Optionally, for the implicit mode, the terminal may determine the downlink timeslot according to the timeslot of the SSB or the timeslot of CORESET # 0. If the indication method is based on the granularity of the symbols or the time slots, the downlink symbols or the time slots are modified to be used as the available downlink transmission resources or a part of the available downlink transmission resources (static/semi-static downlink symbols and time slots indicated by RRC signaling can also be included). Determined as possible transmission resources or slots according to a PDSCH repetition rule (e.g., a repetition transmission rule defined in NR).

In the embodiment of the application, under the condition that the user-level time unit configuration information cannot be acquired, the terminal determines the available time units, so that the terminal and the network equipment in the unconnected state have consistent understanding on the time units for retransmitting the PDSCH/PUSCH/PUCCH, and the success of the PDSCH/PUSCH/PUCCH repeated transmission is ensured.

Fig. 3 is a second flowchart of the method for determining a time unit according to the embodiment of the present application. As shown in fig. 3, the method comprises the steps of:

step 300, a network side device sends a downlink signaling to a terminal, wherein the downlink signaling carries indication information of an available time unit;

In an embodiment, the downlink signaling may be a scheduling signaling for first information transmission, where the scheduling signaling for first information transmission carries indication information of an available time unit, and the scheduling signaling is carried on a PDCCH or a PDSCH.

In one embodiment, the downlink signaling may be a system message. The indication of the available time units is carried in the system message.

Alternatively, the indication information of the available time unit may indicate the available time unit configuration information in a display manner, or indicate the available time unit configuration information in an implicit manner.

In the embodiment of the application, the network side device sends the downlink signaling carrying the indication information of the available time unit to the terminal, so that the terminal determines the available time unit for the transmission of the first information based on the indication information of the available time unit, the terminal and the network device in the non-connected state can have consistent understanding on the time unit for repeatedly sending the PDSCH/PUSCH/PUCCH, the PDSCH/PUSCH/PUCCH is ensured to be transmitted successfully repeatedly, and the transmission efficiency is improved.

Optionally, the first information includes at least one of:

message 3Msg 3;

message 2Msg 2;

a message B MsgB;

message 4Msg 4.

Optionally, the sending, by the network side device, the downlink signaling to the terminal includes at least one of the following:

the network side equipment sends a PDDCH to the terminal, and the indication information of the available time unit is represented by a fixed field of downlink control information DCI carried in the PDCCH;

and the network side equipment sends a PDSCH to the terminal, and the available time unit indication information is represented by first content carried in the PDSCH.

Optionally, the indicating information of the available time unit is indicated by a fixed field of the downlink control information DCI carried in the PDCCH, and includes at least one of:

for the initial transmission of the first information, indicating information of the available time unit is represented by a fixed field in first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) carried in the PDCCH;

for transmission or repeated transmission of the first information, a fixed field in a second DCI scrambled by a temporary cell radio network temporary identity (TC-RNTI) carried in the PDCCH represents indication information of the available time unit.

Optionally, the PDCCH may carry DCI1_0 scrambled for the first transmission of RA-RNTI for Msg3 or Msg2, DCI0_0 scrambled for TC-RNTI for Msg3 retransmission (retransmission), DCI0_0 scrambled for TC-RNTI for Msg4, or DCI in a newly defined non-connected state.

Optionally, the first DCI is DCI1_0, and the second DCI is DCI0_ 0.

Optionally, the indicating information of the available time unit is represented by first content carried in the PDSCH, and includes at least one of:

for the initial transmission of the first information, the available time unit indication information is represented by a random access response RAR of a message2 in a first format carried in the PDSCH;

for the transmission of the first information, the available time cell indication information is represented by a message 4Msg4 in a second format carried in the PDSCH;

wherein the Msg4 in the second format is obtained through a fixed field contained in the Msg 4.

Optionally, for the Msg3 initial transmission, the Msg2 RAR PDSCH uses a new format, compresses part of fields in the RAR UL grant, uses the compressed fields to carry the indication information of the available time unit, or redefines the fields in the RAR UL grant, and adds a function of indicating the available time unit. Specifically, for example, a corresponding parameter definition is added to the TDRA field or the TPC field, and when indicating the TDRA or TPC information, the available uplink timeslot is indicated at the same time.

In the embodiment of the present application, a possible implementation manner of indication information of an available time unit carried/carried in scheduling signaling is provided, so that in a non-connected state, a terminal and a network device have a consistent understanding on a time unit for repeatedly transmitting PDSCH/PUSCH/PUCCH, and it is ensured that PDSCH/PUSCH/PUCCH is successfully repeatedly transmitted.

the indication information of the available time unit indicates that x time units are available from the first time unit of the first information transmission, wherein x is predefined by a protocol or configured by a system message or indicated by the indication information;

wherein x and y are positive integers.

It can be understood that the indication information of the available time unit has the following possible expression forms or contents:

indicating that y time units are available from the beginning of the first time unit of the first information transmission, wherein y is predefined by a protocol or configured by a system message or indicated by the indication information;

and combining the uplink and downlink configuration into an n-bit sequence, wherein the value of each bit represents the transmission direction of a corresponding time unit in a time unit configuration period.

a starting time unit of a time unit configuration period;

the xth time unit after the time unit of the physical channel carrying the indication information of the available time unit;

scheduling a first time unit of the first information transmission;

time units determined based on other reference time unit determination modes;

wherein x is a positive integer.

Or, indicating the transmission direction of the first time unit of the first information transmission starting with the subsequent z time units in the form of a bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

Alternatively, the indication information may be used to directly indicate the location of the available time unit; or indicating the uplink and downlink transmission directions of the subsequent time units, wherein the time units in the same transmission direction as the first information are available time units.

In the embodiment of the application, a possible implementation manner of the indication information of the available time units is provided, so that the terminal and the network equipment in the unconnected state have a consistent understanding on the time units for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH repeated transmission is ensured to be successful.

Optionally, the valid time of the available time unit includes at least one of:

in the time of the first information repeated transmission, the repeated transmission of the first information is carried out according to the available time unit indicated by the first information initial transmission, the first information is transmitted at the same time unit position in the next time unit configuration period, and after the repeated transmission of the first information is completed, the available time unit configuration is invalid;

before entering a connection state to obtain indication information of a new available time unit, using an available time unit configuration result of the first information;

Optionally, the Msg3 retransmission also uses the uplink and downlink timeslot configuration configured in the Msg3 initial transmission, that is, the retransmission operation of the Msg3 repeated transmission is performed according to the available uplink timeslot indicated by the Msg3 initial transmission.

For example, the system schedules the Msg3 to repeat the transmission four times, and the indication indicates two consecutive slots in one uplink and downlink slot period for transmitting Msg 3. The terminal determines the first slot (i.e., the starting slot) of the Msg3 transmission according to the received downlink scheduling information (DCI scrambled by RA-RNTI and RAR) and transmits two slots consecutively, and transmits Msg3 at the same slot position in the next uplink and downlink slot configuration period.

In the embodiment of the application, under the condition that the terminal cannot acquire the user-level time unit configuration information, the network side equipment provides the effective time of the available time units to the terminal, so that the terminal and the network side equipment in a non-connected state have consistent understanding on the time units for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the success of repeated transmission of the PDSCH/PUSCH/PUCCH is ensured.

In the time unit determination method provided in the embodiment of the present application, the execution subject may be a time unit determination device, or a control module in the time unit determination device for executing the time unit determination method. The time unit determining device provided in the embodiment of the present application is described with an example of a time unit determining device executing a time unit determining method.

Fig. 4 is a schematic structural diagram of a time unit determining apparatus according to an embodiment of the present application, and as shown in fig. 4, the apparatus includes:

a first determining unit 410 for determining an available time unit;

In the embodiment of the application, under the condition that the user-level time unit configuration information cannot be acquired, by determining the available time unit for transmission of the first information, wherein the transmission of the first information occupies a plurality of time units of the available time unit, the terminal and the network equipment in the non-connected state can have consistent understanding on the time unit for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH repeated transmission is ensured to be successful.

Optionally, the first determining unit is configured to:

receiving a downlink signaling sent by a network side device, and determining an available time unit according to indication information of the available time unit carried in the downlink signaling; alternatively, the first and second liquid crystal display panels may be,

determining an available time unit based on a time unit configuration rule predefined by a protocol;

for the initial transmission of the first information, determining an available time unit according to a Random Access Response (RAR) of a message 2Msg2 in a first format carried in the PDSCH;

the indication information of the available time unit indicates the transmission direction of the first time unit starting the subsequent y time units of the first information transmission in the form of bitmap, or the transmission directions of all flexible time units, or the transmission directions of all time units in a complete time unit configuration period;

wherein x and y are positive integers.

Optionally, the first determining unit is further configured to:

under the condition that the indication information of the available time units conflicts with the transmission direction of the time units configured by the network side equipment, determining the transmission direction of the conflicting time units according to a preset rule;

wherein the preset rules comprise at least one of:

if the time unit indicated by the indication information conflicts with the time unit of the synchronization signal block SSB or the control resource set CORESET #0, the indication information is invalid, or the time unit of the SSB or CORESET #0 is not influenced by the indication information;

Optionally, the valid time of the available time unit includes at least one of:

and the configuration information is valid only in the current time unit configuration period, wherein for the next time unit configuration period, the corresponding configuration information is monitored.

Optionally, the first information includes at least one of:

message 3Msg 3;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

Optionally, in a case that the first information is Msg3, the first determining unit is configured to:

and determining the first time unit transmitted by the Msg3 according to the result of the Msg2 scheduling or the DCI scheduling scrambled by the TC-RNTI, updating the corresponding time unit in the time unit configuration period as an uplink time unit, and determining the available uplink time unit in the corresponding period by adopting the same configuration result in the subsequent time unit configuration period.

Optionally, in a case that the first message is Msg3, the determining an available time cell based on a time cell configuration rule predefined by a protocol includes at least one of:

updating an uplink time cell determined by a Physical Random Access Channel (PRACH) to an available time cell of the Msg 3;

and under the carrier aggregation CA scene, determining the time unit configuration result of the cell according to the time unit configuration results of other cells.

Optionally, in a case that the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the first determining unit is configured to perform at least one of:

and repeatedly transmitting the configuration result of the corresponding available uplink time unit according to the Msg3, or determining the available uplink time unit in the current time unit configuration period according to the configuration result of the random access time RO resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells.

Optionally, in a case that the first information is Msg2, MsgB, or Msg4, the first determining unit is configured to:

In the embodiment of the application, under the condition that the user-level time unit configuration information cannot be acquired, the available time units are determined, so that the terminal and the network equipment in the unconnected state have consistent understanding on the time units for retransmitting the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH is ensured to be transmitted successfully repeatedly.

The time unit determining apparatus in the embodiment of the present application may be an apparatus, an apparatus or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The time unit determining apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

Fig. 5 is a second schematic structural diagram of a time unit determining apparatus according to an embodiment of the present application. As shown in fig. 5, the apparatus includes:

a first sending unit 510, configured to send a downlink signaling to a terminal, where the downlink signaling carries indication information of an available time unit;

wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH.

In the embodiment of the application, the downlink signaling carrying the indication information of the available time unit is sent to the terminal, so that the terminal determines the available time unit for transmission of the first information based on the indication information of the available time unit, the terminal and the network equipment in the non-connected state can have consistent understanding on the time unit for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH repeated transmission is ensured to be successful.

Optionally, the first sending unit is configured to perform at least one of the following:

sending a PDDCH to a terminal, and indicating information of the available time unit is represented by a fixed field of downlink control information DCI carried in the PDCCH;

and sending a PDSCH to a terminal, wherein the available time unit indication information is represented by first content carried in the PDSCH.

Optionally, the indicating information of the available time unit is represented by a fixed field of the downlink control information DCI carried in the PDCCH, and includes:

for the transmission or repeated transmission of the first information, a fixed field in a second DCI scrambled by a temporary cell radio network temporary identity (TC-RNTI) carried in the PDCCH represents indication information of the available time unit.

Optionally, the representing the available time unit indication information by the first content carried in the PDSCH includes:

for the initial transmission of the first information, the available time cell indication information is represented by a random access response RAR of a message 2Msg2 in a first format carried in the PDSCH;

for the transmission of the first information, the available time unit indication information is represented by a message 4Msg4 in a second format carried in the PDSCH;

wherein x and y are positive integers.

Optionally, the valid time of the available time unit includes at least one of:

before entering a connection state and obtaining indication information of a new available time unit, using an available time unit configuration result of the first information;

Optionally, the first information includes at least one of:

message 3Msg 3;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

In the embodiment of the application, under the condition that the terminal cannot acquire the user-level time unit configuration information, the terminal and the network equipment in the unconnected state have consistent understanding on the time unit for repeatedly transmitting the PDSCH/PUSCH/PUCCH by providing the effective time of the available time unit to the terminal, so that the success of the repeated transmission of the PDSCH/PUSCH/PUCCH is ensured.

The time unit determining apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 3, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 6, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored on the memory 602 and executable on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement the processes of the time unit determination method embodiment, and the same technical effect can be achieved. When the communication device 600 is a network-side device, the program or the instruction is executed by the processor 601 to implement the processes of the time unit determination method embodiment, and the same technical effect can be achieved.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining the available time unit; wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation modes of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, and the like.

Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two portions, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 701 receives downlink data from a network side device and then processes the downlink data in the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 701 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.

The memory 709 may be used to store software programs or instructions as well as various data. The memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. In addition, the Memory 709 may include a high-speed random access Memory and a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that handles primarily the operating system, user interface, and application programs or instructions, etc. and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 710.

A processor 710 for determining available time units;

In the embodiment of the application, the terminal determines the available time unit for transmission of the first information, and the transmission of the first information occupies a plurality of time units of the available time unit, so that the terminal and the network equipment in the unconnected state have consistent understanding on the time unit for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the success of repeated transmission of the PDSCH/PUSCH/PUCCH is ensured.

Optionally, the processor 710 is further configured to receive a downlink signaling sent by the network side device, and determine an available time unit according to indication information of the available time unit carried in the downlink signaling; alternatively, the first and second electrodes may be,

In the embodiment of the application, the terminal determines an available time unit for transmission of the first information based on a time unit configuration rule predefined by a downlink signaling or a protocol sent by the network side device, and the transmission of the first information occupies a plurality of time units of the available time unit, so that the terminal and the network side device in a non-connected state have consistent understanding on the time unit for repeatedly sending the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH repeated transmission is ensured to be successful.

and under the condition that the downlink signaling is carried in the PDSCH, determining an available time unit according to the first content carried in the PDSCH.

for the initial transmission of the first information, determining an available time unit according to a fixed field in a first DCI scrambled by a random access radio network temporary identifier (RA-RNTI) borne in the PDCCH;

wherein x and y are positive integers.

Optionally, the processor 710 is further configured to:

wherein the preset rules comprise at least one of:

In the embodiment of the present application, a solution is provided when there is a conflict between the indication information of the available time unit and the transmission direction of the time unit configured by the network side device, so that the efficiency of the PDSCH/PUSCH/PUCCH repeat transmission can be effectively improved.

Optionally, the valid time of the available time unit includes at least one of:

Optionally, the first information includes at least one of:

message 3Msg 3;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

Optionally, in a case that the first message is Msg3, the processor 710 is further configured to:

updating an uplink time unit determined by a Physical Random Access Channel (PRACH) into an available time unit of the Msg 3;

Optionally, in a case that the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the processor 710 is further configured to perform at least one of the following:

Optionally, in a case that the first message is Msg2, MsgB, or Msg4, the processor 710 is further configured to:

In the embodiment of the application, under the condition that the user-level time unit configuration information cannot be acquired, the terminal determines the available time units, so that the terminal and the network equipment in the unconnected state have consistent understanding on the time units for repeatedly transmitting the PDSCH/PUSCH/PUCCH, and the PDSCH/PUSCH/PUCCH repeated transmission is ensured to be successful.

The embodiment of the present application further provides a network side device, which includes a processor and a communication interface, where the communication interface is configured to send a downlink signaling to a terminal, and the downlink signaling carries indication information of an available time unit; wherein the available time unit is used for transmission of first information; the transmission of the first information occupies a plurality of time units of the available time units; wherein the downlink signaling comprises at least one of the following: downlink control information DCI, system information and high-level signaling; the downlink signaling is carried in at least one of the following items: a physical downlink control channel PDCCH and a physical downlink shared channel PDSCH. The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 8, the network device 800 includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf device 802 receives information via the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted and transmits the information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

The above band processing means may be located in the baseband means 803, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 803, where the baseband means 803 includes a processor 804 and a memory 805.

The baseband apparatus 803 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, the processor 804, is connected to the memory 805 to call up the program in the memory 805 to perform the network device operations shown in the above method embodiments.

The baseband device 803 may further include a network interface 806, such as a common public radio interface (CPRI for short), for exchanging information with the radio frequency device 802.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 805 and capable of being executed on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in fig. 5, and achieve the same technical effects, which are not described herein for avoiding repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing time unit determining method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the time unit determining method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. A method for time cell determination, comprising:

the terminal determines an available time unit;

2. The method of claim 1, wherein the terminal determines an available time unit, comprising:

a terminal receives a downlink signaling sent by a network side device, and determines an available time unit according to indication information of the available time unit carried in the downlink signaling; alternatively, the first and second electrodes may be,

the terminal determines an available time unit based on a time unit configuration rule predefined by a protocol;

3. The method according to claim 2, wherein the determining available time units according to the indication information of available time units carried in the downlink signaling includes at least one of:

4. The method according to claim 3, wherein the determining an available time unit according to a fixed field of Downlink Control Information (DCI) carried in the PDCCH comprises at least one of:

and for the transmission or repeated transmission of the first information, determining an available time unit according to a fixed field in a second DCI scrambled by a temporary cell radio network temporary identifier TC-RNTI (temporary cell radio network temporary identifier) borne in the PDCCH.

5. The method for determining time units according to claim 3, wherein the determining available time units according to the first content carried in the PDSCH comprises at least one of:

6. The method according to claim 2, wherein the indication information of the available time units satisfies at least one of:

wherein x and y are positive integers.

7. The method of claim 2, wherein the terminal determines an available time unit, further comprising:

wherein the preset rules comprise at least one of:

8. The method of claim 1, wherein the valid time of the available time unit comprises at least one of:

9. The time unit determination method according to any of claims 1-8, wherein the first information comprises at least one of:

message 3Msg 3;

message 2Msg 2;

a message B MsgB;

message 4Msg 4.

10. The method according to claim 1, wherein in the case that the first message is Msg3, the terminal determines an available time cell, comprising:

11. The method according to claim 2, wherein in the case that the first message is Msg3, the terminal determines an available time cell based on a time cell configuration rule predefined by a protocol, and the method comprises at least one of the following:

12. The method according to claim 9, wherein in case that the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the terminal determines an available time cell, including at least one of:

and repeatedly transmitting the configuration result of the corresponding available uplink time unit according to the Msg3, or determining the available uplink time unit in the current time unit configuration period according to the configuration result of the random access opportunity RO resource of the random access channel RACH, or according to the uplink and downlink configuration results of other cells.

13. The method according to claim 9, wherein in the case where the first message is Msg2, MsgB, or Msg4, the terminal determines an available time cell, including:

14. A method for time cell determination, comprising:

the network side equipment sends a downlink signaling to the terminal, wherein the downlink signaling carries indication information of an available time unit;

15. The method according to claim 14, wherein the network side device sends downlink signaling to the terminal, and the downlink signaling includes at least one of:

16. The method according to claim 15, wherein the indication information indicating the available time unit is represented by a fixed field of downlink control information, DCI, carried in the PDCCH, and includes at least one of:

17. The method according to claim 15, wherein the indicating information of the available time unit is represented by a first content carried in the PDSCH, and comprises at least one of:

18. The method according to claim 14, wherein the information indicative of the available time units satisfies at least one of:

wherein x and y are positive integers.

19. The method of claim 14, wherein the validity time of the available time unit comprises at least one of:

20. The time unit determination method according to any of claims 14-19, characterized in that the first information comprises at least one of the following:

message 3Msg 3;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

21. A time cell determination apparatus, comprising:

a first determination unit for determining an available time unit;

22. The time unit determination device according to claim 21, wherein the first determination unit is configured to:

receiving a downlink signaling sent by a network side device, and determining an available time unit according to indication information of the available time unit carried in the downlink signaling; alternatively, the first and second electrodes may be,

23. The apparatus for determining a time unit according to claim 22, wherein the determining an available time unit according to the indication information of an available time unit carried in the downlink signaling includes at least one of:

24. The apparatus for determining time unit according to claim 23, wherein the determining an available time unit according to a fixed field of downlink control information, DCI, carried in the PDCCH includes at least one of:

25. The apparatus for determining time units according to claim 23, wherein said determining available time units according to the first content carried in the PDSCH comprises at least one of:

26. The time unit determining apparatus according to claim 22, wherein the indication information of the available time units satisfies at least one of:

wherein x and y are positive integers.

27. The time unit determining apparatus of claim 22, wherein the first determining unit is further configured to:

wherein the preset rules comprise at least one of:

the time unit with conflict determines the transmission direction according to RRC configuration;

28. The time unit determination device of claim 21, wherein the valid time of the available time unit comprises at least one of:

29. The time unit determination device according to any of claims 21-28, wherein the first information comprises at least one of:

message 3Msg 3;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

30. The time-cell determining apparatus according to claim 29, wherein in a case where the first message is Msg3, the first determining unit is configured to:

31. The time cell determining apparatus according to claim 22, wherein in case the first message is Msg3, the determining available time cells based on the protocol predefined time cell configuration rule comprises at least one of:

32. The time unit determining device of claim 29, wherein in case the first information is PUCCH for HARQ-ACK of Msg4/MsgB, the first determining unit is configured to perform at least one of:

33. The time cell determination device according to claim 29, wherein in case the first message is Msg2, MsgB or Msg4, the first determination unit is configured to:

34. A time cell determination apparatus, comprising:

35. The time unit determination apparatus of claim 34, wherein the first sending unit is configured to perform at least one of:

36. The apparatus for determining time unit according to claim 35, wherein the indication information indicating the available time unit is represented by a fixed field of downlink control information, DCI, carried in the PDCCH, and includes:

37. The apparatus for determining time unit according to claim 35, wherein said representing the available time unit indication information by the first content carried in the PDSCH comprises:

for the initial transmission of the first information, the available time unit indication information is represented by a random access response RAR of a message 2Msg2 in a first format carried in the PDSCH;

the Msg2 RAR in the first format is obtained by compressing partial fields in an RAR uplink UL grant or redefining partial fields in an RAR UL grant;

38. The time unit determining apparatus according to claim 34, wherein the indication information of the available time units satisfies at least one of:

wherein x and y are positive integers.

39. The time unit determination device of claim 34, wherein the valid time of the available time unit comprises at least one of:

40. The time unit determination device according to any of claims 34-39, wherein the first information comprises at least one of:

message 3Msg 3;

message 2Msg 2;

message B MsgB;

message 4Msg 4.

41. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, carry out the steps of the time cell determination method according to any one of claims 1 to 13.

42. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the time cell determination method according to any one of claims 14 to 20.

43. A readable storage medium, characterized in that a program or instructions are stored on the readable storage medium, which program or instructions, when executed by a processor, carry out the steps of the time unit determination method according to any one of claims 1 to 13, or carry out the steps of the time unit determination method according to any one of claims 14 to 20.