CN112997575B

CN112997575B - Wireless communication method, terminal device and network device

Info

Publication number: CN112997575B
Application number: CN201980074342.9A
Authority: CN
Inventors: 石聪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2023-07-21
Anticipated expiration: 2039-04-11
Also published as: CN112997575A; WO2020206658A1

Abstract

A wireless communication method, a terminal device and a network device, the method includes: determining at least one first SSB, the measured value of which is greater than or equal to a first threshold; determining a first PUSCH resource corresponding to at least one first SSB according to a first correspondence and a second correspondence, determining a first PUSCH resource corresponding to at least one first SSB according to a third correspondence, or determining a first PUSCH resource corresponding to at least one first SSB according to a fourth correspondence, where the first PUSCH resource is used for transmitting data to be transmitted in first information in two steps of random access, the first correspondence is a correspondence between SSB and RO resource, the second correspondence is a correspondence between RO resource and PUSCH resource, the third correspondence is a correspondence between SSB and PUSCH resource, and the fourth correspondence is a correspondence between random access preamble and DMRS.

Description

Wireless communication method, terminal device and network device

Technical Field

The embodiments of the present application relate to the field of communications, and more particularly, to a wireless communication method, a terminal device, and a network device.

Background

Two-step random access can be supported in a New air interface (NR) system, in which Message 1 (Message 1, msg 1) and Message 3 (Msg 3) in a four-step random access procedure can be transmitted as a first Message (Message a, msg a) in the two-step random access procedure, and Message 2 (Msg 2) and Message 4 (Msg 4) in the four-step random access procedure can be transmitted as a second Message (Message B, msg B) in the two-step random access procedure. However, since the payload (payload) in Msg a may have different payload sizes (sizes) according to different random access channels (Random Access Channel, RACH) events, if the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resource selected by the terminal device cannot support payload size, two-step random access failure may result, and therefore, how to avoid two-step random access failure caused by the PUSCH resource cannot support payload size is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, which can avoid two-step random access failure caused by the fact that a PUSCH resource cannot support payload size.

In a first aspect, a wireless communication method is provided, the method comprising:

the terminal device determines at least one first synchronization signal block (Synchronization Signal Block, SSB), the measured value of which is greater than or equal to a first threshold value;

the terminal device determines a first PUSCH resource corresponding to the at least one first SSB according to a first correspondence and a second correspondence, or determines a first PUSCH resource corresponding to the at least one first SSB according to a third correspondence, or determines a first PUSCH resource corresponding to the at least one first SSB according to a fourth correspondence, where the first PUSCH resource is used for transmitting data to be transmitted in a first piece of information in a two-step random access process, the first correspondence is a correspondence between SSB and RACH Opportunity (RO) resources, the second correspondence is a correspondence between RO resources and PUSCH resources, the third correspondence is a correspondence between SSB and PUSCH resources, and the fourth correspondence is a correspondence between a random access preamble and demodulation reference signals (Demodulation Reference Signal, DMRS).

Alternatively, the data to be transmitted in the first piece of information may be payload.

In a second aspect, there is provided a wireless communication method comprising:

the network device sends first configuration information to the terminal device, wherein the first configuration information is used for determining a Physical Uplink Shared Channel (PUSCH) resource for transmitting data to be transmitted in first information in a two-step random access process by the terminal device, the first configuration information comprises at least one of a first corresponding relation, a second corresponding relation, a third corresponding relation and a fourth corresponding relation, the first corresponding relation is a corresponding relation between an SSB and an RO resource, the second corresponding relation is a corresponding relation between an RO resource and the PUSCH resource, the third corresponding relation is a corresponding relation between the SSB and the PUSCH resource, and the fourth corresponding relation is a corresponding relation between a random access preamble and a DMRS.

In a third aspect, a terminal device is provided for performing the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device comprises functional modules for performing the method of the first aspect or its implementation manner.

In a fourth aspect, a network device is provided for performing the method of the second aspect or implementations thereof.

In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above.

In a fifth aspect, a terminal device is provided comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

A seventh aspect provides an apparatus for implementing the method of any one of the first to second aspects or each implementation thereof.

Specifically, the device comprises: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method as in any one of the first to second aspects or implementations thereof described above.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to second aspects or implementations thereof.

A ninth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

According to the technical scheme, the terminal equipment determines the first PUSCH resource corresponding to at least one first SSB with the measured value meeting the first threshold according to the corresponding relation between the SSB and the RO resource and the corresponding relation between the RO resource and the PUSCH resource or according to the corresponding relation between the SSB and the PUSCH resource, and can be used for transmitting data to be transmitted in the first information in the two-step random access process based on the first PUSCH resource, so that two-step random access failure caused by the fact that the PUSCH resource cannot support payload size can be avoided, and packet loss phenomenon cannot occur in the transmission of the data to be transmitted on the first PUSCH resource.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of a four-step random access provided in an embodiment of the present application.

Fig. 3 is a schematic diagram of a four-step random access to a two-step random access according to an embodiment of the present application.

Fig. 4 is a schematic flow chart of a wireless communication method provided according to an embodiment of the present application.

Fig. 5 is a schematic flow chart diagram of another wireless communication method provided in accordance with an embodiment of the present application.

Fig. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device provided according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of an apparatus provided in accordance with an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden for the embodiments herein, are intended to be within the scope of the present application.

The embodiments of the present application may be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio, NR system evolution system, LTE over unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR over unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), next generation communication system or other communication system, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, and the like, to which the embodiments of the present application can also be applied.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and a Stand Alone (SA) fabric scenario.

The frequency spectrum of the application in the embodiments of the present application is not limited. For example, embodiments of the present application may be applied to licensed spectrum as well as unlicensed spectrum.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 1 illustrates one network device and two terminal devices by way of example, and alternatively, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Embodiments of the present application describe various embodiments in connection with a terminal device and a network device, wherein: a terminal device may also be called a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User device, or the like. The terminal device may be a Station (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, and a next generation communication system, such as a terminal device in an NR network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

The network device may be a device for communicating with the mobile device, the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an Access Point, or a vehicle device, a wearable device, and a network device in NR network or a base station (gNB) or a network device in future evolved PLMN network, etc.

In the embodiment of the present application, the network device provides services for a cell, and the terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

After the cell search procedure, the terminal device has acquired downlink synchronization with the cell, and thus the terminal device can receive downlink data. But the terminal equipment can only perform uplink transmission if uplink synchronization is obtained with the cell. The terminal device can establish a connection with the cell and acquire uplink synchronization through a random access procedure (Random Access Procedure). In order to facilitate understanding of the scheme of the embodiment of the present application, the random access procedure will be briefly described below with reference to fig. 2.

The random access procedure may be triggered by the following events in general:

(1) Initial Access (Initial Access).

The terminal device may enter an RRC CONNECTED state (rrc_connected) from a radio resource control (Radio Resource Control, RRC) IDLE state (rrc_idle state).

(2) RRC connection reestablishment procedure (RRC Connection Re-establishment procedure).

(3) Handover (Handover).

At this time, the terminal device is in a connected state, and needs to establish uplink synchronization with a new cell.

(4) In the RRC connected state, when downlink data or uplink data arrives, the uplink is in an "unsynchronized" state (DL or UL data arrival during RRC _ CONNECTED when UL synchronisation status is "non-synchronized").

(5) In the RRC connected state, when uplink data arrives, no physical uplink control channel (Physical Uplink Control Channel, PUCCH) resources are available for scheduling request (Scheduling Request, SR) transmission (UL data arrival during RRC _ CONNECTED when there are no PUCCH resources for SR available).

(6) SR failure (SRfailure).

(7) Request for RRC in synchronous configuration (Request by RRC upon synchronous reconfiguration).

(8) The terminal device transitions from the RRC INACTIVE state (Transition from RRC _inactive).

(9) Time alignment is established upon SCell addition (To establish time alignment at SCell addition).

(10) The terminal device requests other system information (Other System Information, OSI).

(11) The terminal device needs to perform recovery (Beam failure recovery) of Beam (Beam) failure.

In an NR system, two random access modes can be supported: a contention-based random access scheme and a non-contention-based random access scheme. The following briefly describes a contention-based four-step random access procedure, as shown in fig. 2, which includes:

step 1, a terminal device sends a random access Preamble (Preamble, i.e. message1, msg 1) to a network device.

The random access preamble may also be referred to as a preamble, a random access preamble sequence, a preamble sequence, or the like.

In particular, the terminal device may select physical random access channel (Physical Random Access Channel, PRACH) resources, which may include time domain resources, frequency domain resources, and code domain resources. Next, the terminal device may send the selected Preamble on the selected PRACH resource. The network device may estimate its transmission delay with the terminal device based on the Preamble and calibrate the uplink timing (timing) accordingly, and may generally determine the size of resources required by the terminal device to transmit message 3 (Msg 3).

Step 2, the network device sends a random access response (Random Access Response, RAR, i.e. message2, msg 2) to the terminal device

After the terminal device sends the Preamble to the network device, a RAR window may be opened, and a corresponding physical downlink control channel (Physical Downlink Control Channel, PDCCH) may be detected in the RAR window according to the random access radio network temporary identifier (Random Access Radio Network Temporary Identifier, RA-RNTI). If the terminal device detects the PDCCH scrambled by the RA-RNTI, it can obtain the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by the PDCCH. Wherein, the PDSCH includes a RAR corresponding to the Preamble.

If the RAR returned by the network device is not received within the RAR window, the terminal device may consider that the random access procedure fails. It should be appreciated that both the terminal device and the network device need to uniquely determine the value of the RA-RNTI, otherwise the terminal device cannot decode the RAR.

Alternatively, in the embodiment of the present application, the RA-RNTI may be calculated by receiving and transmitting the time-frequency location of the Preamble that is clear to both parties. For example, the RA-RNTI associated with the Preamble may be calculated by equation 1:

RA-rnti=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_c_id equation 1

Where s_id is an index (0.ltoreq.s_id < 14) of a first orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol of the PRACH resource, t_id is an index (0.ltoreq.t_id < 80) of a first slot of the PRACH resource in one system frame, f_id is an index (0.ltoreq.f_id < 8) of the PRACH resource in the frequency domain, ul_c_id is an Uplink carrier (0 represents Normal Uplink (NUL) carrier) for transmitting the Preamble, and 1 represents a supplementary Uplink (Supplementary Uplink, SUL) carrier. For frequency division multiplexing (Frequency Division Duplexing, FDD), there is only one PRACH resource per subframe, so the f_id is fixed to 0.

In other words, since the Preamble time-frequency position sent by the terminal device is determined, the network device obtains the time-frequency position of the Preamble when decoding the Preamble, so that the RA-RNTI needed to be used in the RAR can be known. When the terminal device successfully receives an RAR (decoded using the determined RA-RNTI) and the random access sequence identifier (Random Access Preamble Identifier, RAPID) in the RAR is the same as the Preamble index transmitted by the terminal device, the terminal device may consider that the RAR was successfully received, and may stop detecting the PDCCH scrambled by the RA-RNTI.

And 3, the terminal equipment sends Msg 3.

After receiving the RAR message, the terminal device determines whether the RAR is an RAR message belonging to itself, for example, the terminal device may check by using the preamble index, and after determining that the RAR message is an RAR message belonging to itself, may generate Msg3 in the RRC layer and send the Msg3 to the network device, where the terminal device needs to carry identification information of the terminal device, and so on.

Wherein Msg3 is mainly used for informing the network device of the trigger event of the random access. The Msg3 sent by the terminal device in step 3 may comprise different content for different random access trigger events.

For example, for the initial access scenario, msg3 may include an RRC connection request message generated by the RRC layer (RRC Setup Request). In addition, the Msg3 may also carry, for example, a 5G-service temporary mobile subscriber identity (Serving-Temporary Mobile SubscriberIdentity, S-TMSI) or a random number of the terminal device, etc.

For another example, for an RRC connection reestablishment scenario, msg3 may include an RRC connection reestablishment request message generated by the RRC layer (RRC Reestabilshment Request). In addition, the Msg3 may also carry, for example, a cell radio network temporary identity (Cell Radio Network Temporary Identifier, C-RNTI) or the like.

For another example, for a handover scenario, msg 3 may include an RRC layer generated RRC handover confirm message (RRC Handover Confirm) that carries the C-RNTI of the terminal device. In addition, msg 3 may also carry information such as buffer status reports (Buffer Status Report, BSR). For other trigger events, such as the scenario of up/down data arrival, msg 3 may include at least the C-RNTI of the terminal device.

Step 4, the network device sends a conflict resolution message (contention resolution), i.e. Msg4, to the terminal device.

The network device sends Msg4 to the terminal device, and the terminal device receives Msg4 correctly to complete contention resolution (Contention Resolution). For example, during RRC connection establishment, an RRC connection establishment message may be carried in Msg4.

Since the terminal device in step 3 can carry its own unique identifier in Msg 3, the network device will carry the unique identifier of the terminal device in Msg4 in the contention resolution mechanism to designate the terminal device that wins the contention. While other terminal devices that are not winning in contention resolution will re-initiate random access.

It should be appreciated that in the embodiments of the present application, contention conflict resolution may be in two ways:

in one approach, if the terminal device carries a C-RNTI at Msg 3, msg4 may schedule a PDCCH scrambled with the C-RNTI.

In the second mode, if the terminal device does not carry the C-RNTI in the Msg 3, such as initial access, the Msg 4 may schedule with the TC-RNTI scrambled PDCCH. At this time, the resolving of the contention conflict may be to receive PDSCH of Msg 4 through the terminal device, obtain a conflict resolution ID, and determine whether to resolve the conflict by matching the conflict resolution ID with a common control channel (Common control channel, CCCH) service data unit (Service Data Unit, SDU) in Msg 3.

The time delay of the four-step random access is relatively large, and the method is unsuitable for a low-time delay high-reliability scene in 5G. The scheme of the two-step random access process is provided by considering the characteristics of the low-delay high-reliability related service. As shown in fig. 3, in the two-step random access procedure, simply speaking, the first step and the third step of the four-step random access procedure are combined to be the first step in the two-step random access procedure, and the second step and the fourth step of the four-step random access procedure are combined to be the second step in the two-step random access procedure.

More specifically, the two-step random access procedure may include:

the first step: the terminal device sends a first piece of information (Msg a) to the network device.

The Msg a may consist of a Preamble and a Payload (Payload), where the Preamble is a Preamble of four-step random access, and the Preamble is transmitted on PRACH resources, and the Payload mainly carries information in Msg 3 in the four-step random access. For example, CCCH SDUs may be included, such as corresponding to random access in RRC idle state, and C-RNTI media access control elements (Media Access Control Control Element, MAC CE) may be included, such as mainly corresponding to random access in RRC connected state. Payload may be carried on an uplink channel, which may be, for example, PUSCH.

It should be understood that Msg a may carry part or all of the information carried in Preamble and Msg 3 in a four-step random access procedure.

And a second step of: the network device sends a second piece of information (Msg B) to the terminal device.

If the network device successfully receives the Msg a sent by the terminal device, the network device may send the Msg B to the terminal device. The Msg B may contain part or all of the information carried in Msg 2 and Msg 4 in the four-step random access procedure. The names of Msg a and Msg B are not limited, that is, they may be expressed as other names. For example, the first piece of information may also be referred to as a random access request message or a new Msg 1, and the second piece of information may also be referred to as a random access response message or a new Msg 2.

It should be understood that fig. 3 is only a specific implementation of the two-step random access procedure, and should not limit the scope of protection of the present application.

It should also be appreciated that the payload of Msg a may have different payload sizes depending on the RACH event. If the msg a resource selected by the terminal device cannot support payload size, the two-step random access procedure fails, for example, according to the current four-step random access procedure resource selection procedure:

the terminal equipment firstly measures SSB and finds out SSB meeting the threshold;

The terminal equipment randomly selects RO resources based on the corresponding relation between SSB and RO configured by the network;

the terminal device transmits the preamble on the selected RO resource.

However, there is no provision in the present stage for the terminal device to select PUSCH resources for transmitting MsgA, and it cannot be guaranteed that the PUSCH resources for selecting MsgA must be capable of transmitting payload, for example, the size (Transport block size, TBS) of a transport block supported by PUSCH may be smaller than the size of payload. Therefore, how to avoid two-step random access failure caused by the failure of PUSCH resources to support payload size is a problem to be solved.

The following describes in detail the scheme of PUSCH resource selection for Msg a, which is designed by the present application for the above technical problem.

Fig. 4 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, as shown in fig. 4, the method 200 may include the following:

s210, the terminal equipment determines at least one first SSB, and the measured value of the first SSB is greater than or equal to a first threshold value;

s220, the terminal equipment determines a first PUSCH resource corresponding to the at least one first SSB according to a first corresponding relation and a second corresponding relation, or determines a first PUSCH resource corresponding to the at least one first SSB according to a third corresponding relation, or determines a first PUSCH resource corresponding to the at least one first SSB according to a fourth corresponding relation, wherein the first PUSCH resource is used for transmitting data to be transmitted in a first piece of information in a two-step random access process, the first corresponding relation is a corresponding relation between the SSB and the RO resource, the second corresponding relation is a corresponding relation between the RO resource and the PUSCH resource, the third corresponding relation is a corresponding relation between the SSB and the PUSCH resource, and the fourth corresponding relation is a corresponding relation between a random access preamble and the DMRS.

Alternatively, the data to be transmitted may be payload.

Optionally, the first threshold is preconfigured or configured for the network device.

It should be noted that RO resources may be used to transmit a random access preamble (preamble).

It should be understood that, before the above step S210, the terminal device performs SSB measurement, so as to obtain the measured value of SSB.

In the first correspondence, the correspondence between SSB and RO resources may be one-to-one correspondence, or many-to-one correspondence, or one-to-many correspondence.

In the second correspondence, the correspondence between RO resources and PUSCH resources may be one-to-one, many-to-one, or one-to-many.

In the third correspondence, the correspondence between SSB and PUSCH resources may be one-to-one, many-to-one, or one-to-many.

Optionally, in the fourth correspondence, the correspondence between the random access preamble and the DMRS of the PUSCH resource is one-to-one correspondence.

Optionally, in an embodiment of the present application, at least one of the first correspondence, the second correspondence, the third correspondence, and the fourth correspondence is preconfigured or configured for a network device.

For example, at least one of the first correspondence, the second correspondence, the third correspondence, and the fourth correspondence is configured for the network device through common RACH resource configuration information (RACH-ConfigCommon) and/or dedicated RACH resource configuration information (RACH-configdedided).

Optionally, in the embodiment of the present application, the TBS supported by the first PUSCH resource is greater than or equal to the size of the data to be transmitted. That is, the first PUSCH resource may meet the transmission requirement of the data to be transmitted, so that the data to be transmitted in the first information may be transmitted on the first PUSCH resource without packet loss.

Preferably, the TBS supported by the first PUSCH resource is equal to the size of the data to be transmitted. I.e. the TBS supported by the first PUSCH resource is just capable of transmitting the data to be transmitted.

It should be noted that, the terminal device first selects the PUSCH resource that can just transmit the data to be transmitted, and selects other PUSCH resources that can transmit the data to be transmitted when there is no PUSCH resource that can just transmit the data to be transmitted.

Optionally, in this embodiment of the present application, if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted, the terminal device may select at least one SSB from SSBs whose other measured values do not meet the first threshold, so that the PUSCH resource corresponding to the at least one SSB meets the requirement of transmitting the data to be transmitted. Therefore, the data to be transmitted in the first piece of information can be ensured to be transmitted on the selected PUSCH resource without packet loss.

Specifically, the terminal device determines at least one second SSB, wherein a measured value of the second SSB is smaller than the first threshold value; and determining a second PUSCH resource corresponding to the at least one second SSB according to the first correspondence and the second correspondence, or determining a second PUSCH resource corresponding to the at least one second SSB according to the third correspondence, or determining a second PUSCH resource corresponding to the at least one second SSB according to the fourth correspondence, wherein the TBS supported by the second PUSCH resource is greater than or equal to the size of the data to be transmitted.

Optionally, in the embodiment of the present application, the PUSCH resource for the first piece of information supports Q kinds of TBSs, where Q is a positive integer.

For example, q=2, and the TBS supported by PUSCH resources for this first piece of information is 56bits (56 bits) and 72bits (72 bits). Of course, Q is also another positive integer, for example, 4,6, which is not limited in the embodiments of the present application.

In the first embodiment, if one SSB corresponds to M RO resources in the first corresponding relationship, PUSCH resources corresponding to the M RO resources in the second corresponding relationship support at least the Q kinds of TBSs, where M is greater than or equal to Q, and M is an integer greater than or equal to 2.

For example, the M is 8, 4 or 2.

Alternatively, in the first embodiment, step S220 may specifically be:

the terminal equipment determines at least M RO resources corresponding to the at least one first SSB according to the first corresponding relation;

the terminal equipment determines a first RO resource from the at least M RO resources, wherein TBS supported by PUSCH resources corresponding to the first RO resource in the second corresponding relation is larger than or equal to the size of the data to be transmitted;

and the terminal equipment determines the first PUSCH resource according to the second corresponding relation and the first RO resource.

Further, in the first embodiment, if there are a plurality of RO resources in the at least M RO resources and the TBS supported by the PUSCH resource corresponding to each of the plurality of RO resources in the second correspondence is greater than or equal to the size of the data to be transmitted, the terminal device randomly determines one of the plurality of RO resources as the first RO resource, or the terminal device determines the first RO resource satisfying a first condition in the plurality of RO resources as the first RO resource, where the first condition is that the TBS supported by the PUSCH resource corresponding to the second correspondence is greater than or equal to the size of the data to be transmitted.

The first RO resource satisfying the first condition may be an RO resource that satisfies the first condition from the time when the selection of the RO resource is started. For example, the terminal device starts to select RO resources at time a, and after time a, the first RO resource satisfying the condition is the latest RO resource.

Alternatively, as example 1, assuming that M is 8, this means that one SSB corresponds to 8 RO resources, q=2, and PUSCH resources for the first piece of information support two kinds of TBSs 56bits and 72bits, SSB 1 corresponds to 8 RO resources, and PUSCH resources corresponding to these 8 RO resources need PUSCH resources including at least these two kinds of TBSs (56 bits and 72 bits).

In example 1, one way is that each RO resource corresponds to one PUSCH resource, i.e., RO resource corresponds to PUSCH resource one-to-one, such as (RO resource 1-PUSCH resource 1 (56 bits), RO resource 2-PUSCH resource 2 (56 bits), RO resource 3-PUSCH resource 3 (56 bits), RO resource 4-PUSCH resource 4 (56 bits), RO resource 5-PUSCH resource 5 (72 bits), RO resource 6-PUSCH resource 6 (72 bits), RO resource 7-PUSCH resource 7 (72 bits), RO resource 8-PUSCH resource 8 (72 bits). Another way is that multiple RO resources correspond to one PUSCH resource, e.g. 4 RO resources correspond to PUSCH resources of one size (56 bits), and another 4 RO resources correspond to PUSCH resources of another size (72 bits), i.e. (RO resource 1, RO resource 2, RO resource 3, RO resource 4) -PUSCH resource 1 (56 bits), (RO resource 5, RO resource 6, RO resource 7, RO resource 8) -PUSCH resource 2 (72 bits).

Alternatively, as example 2, assuming that M is 8, meaning that one SSB corresponds to 8 RO resources, q=2, and the TBS supported by PUSCH resources for the first piece of information is two of 56bits and 72bits, each PUSCH resource (PO) may configure 12 DMRS.

In example 2, the number of preambles corresponding to each SSB is configured by the network device, and is at most 64. Then in the fourth correspondence, the preamble corresponds to DMRS of PUSCH resources one by one. If the preamble corresponding to the SSB is 60, 60 DMRS are required to be corresponding, that is, 5 PO resources are required, and the network device needs to ensure that the 5 PO resources at least include one PUSCH resource supporting 56bits and one PUSCH resource supporting 72 bits.

After determining the SSB, the terminal device randomly selects one RO resource transmission preamble, and selects one preamble from the preambles corresponding to the SSB so that PUSCH resources corresponding to the DMRS corresponding to the preamble need to support payload transmission in msgA.

In the second embodiment, if N SSBs in the first correspondence correspond to one RO resource, then PUSCH resources corresponding to each RO resource in the second correspondence at least support the Q TBSs, where N is a positive integer.

For example, N is 1, 2, 4, 8 or 16.

Alternatively, in the second embodiment, step S220 may specifically be:

the terminal equipment determines at least one RO resource corresponding to the at least one first SSB according to the first corresponding relation;

the terminal equipment determines at least Q PUSCH resources according to the second corresponding relation and the at least one RO resource;

the terminal device determines the first PUSCH resource among the at least Q PUSCH resources.

Alternatively, as example 3, assuming that N is 1 and TBS of PUSCH resources are 56bits and 72bits, the correspondence between this RO resource and PUSCH resource is: RO resource 1-PUSCH resource 1 (56 bits), RO resource 1-PUSCH resource 2 (72 bits).

Alternatively, as example 4, assuming that N is 2, meaning that 2 SSBs correspond to 1 RO resource, q=2, and PUSCH resources for the first piece of information support TBSs of both 56bits and 72bits, each PUSCH resource (PO) may configure 12 DMRS.

In example 4, the number of preambles corresponding to each SSB is configured by the network device, and is at most X/N. X is a value of the network configuration, X is a positive integer, and X takes at most 64. Assuming that X is configured to be 60, there are a maximum of 30 preambles that each SSB can correspond to. Then in the fourth correspondence, the preamble corresponds to DMRS of PUSCH resources one by one. Since the preamble corresponding to the SSB is 30, 30 DMRS are required, that is, 3 PO resources (only 6 DMRS are required for one PO resource), and the network needs to ensure that the 3 PO resources at least include one PUSCH resource supporting 56bits and one PUSCH resource supporting 72 bits.

After determining the SSB, the terminal device selects a unique RO resource transmission preamble corresponding to the SSB, and selects a preamble from the preambles corresponding to the SSB so that PUSCH resources corresponding to the DMRS corresponding to the preamble need to support payload transmission in msgA.

Alternatively, in the embodiment of the present application, step S220 may specifically be:

the terminal equipment determines a random access preamble according to the at least one SSB;

the terminal equipment determines the DMRS corresponding to the random access preamble according to the fourth corresponding relation;

and the terminal equipment determines the first PUSCH resource according to the DMRS.

Optionally, a PUSCH Opportunity (PO) is determined according to the DMRS, i.e., a PUSCH resource is determined according to the DMRS.

It should be noted that, one PUSCH resource may be associated with P DMRSs, where P is a positive integer, and may be configured by a network device.

Therefore, in the embodiment of the present application, the terminal device determines, according to the correspondence between the SSB and the RO resource and the correspondence between the RO resource and the PUSCH resource, or according to the correspondence between the SSB and the PUSCH resource, the first PUSCH resource corresponding to at least one first SSB whose measurement value meets the first threshold, and may be based on that the first PUSCH resource is used to transmit data to be transmitted in the first piece of information in the two-step random access process, so that two-step random access failure caused by that the PUSCH resource cannot support the payload size may be avoided, and packet loss phenomenon may not occur in transmitting the data to be transmitted on the first PUSCH resource.

Further, even if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted, that is, the first PUSCH resource cannot meet the transmission requirement of the data to be transmitted, the terminal device may redetermine a second PUSCH resource that meets the transmission requirement of the data to be transmitted, so as to ensure that the data to be transmitted in the first information can be transmitted on the selected PUSCH resource without packet loss.

Fig. 5 is a schematic flow chart of a wireless communication method 300 according to an embodiment of the present application, as shown in fig. 5, the method 300 may include the following:

s310, the network device sends first configuration information to the terminal device, where the first configuration information is used for determining PUSCH resources for transmitting data to be transmitted in a first piece of information in a two-step random access process, the first configuration information includes at least one of a first corresponding relationship, a second corresponding relationship, a third corresponding relationship and a fourth corresponding relationship, the first corresponding relationship is a corresponding relationship between SSB and RO resources, the second corresponding relationship is a corresponding relationship between RO resources and PUSCH resources, the third corresponding relationship is a corresponding relationship between SSB and PUSCH resources, and the fourth corresponding relationship is a corresponding relationship between a random access preamble and DMRS.

Optionally, the PUSCH resource for the first information supports Q kinds of TBSs, Q being a positive integer.

Optionally, if one SSB corresponds to M RO resources in the first corresponding relationship, PUSCH resources corresponding to the M RO resources in the second corresponding relationship support at least the Q kinds of TBSs, where M is greater than or equal to Q, and M is an integer greater than or equal to 2.

Alternatively, the M is 8, 4 or 2.

Optionally, if N SSBs in the first correspondence correspond to one RO resource, PUSCH resources corresponding to each RO resource in the second correspondence at least support the Q TBSs, where N is a positive integer.

Alternatively, the N is 1, 2, 4, 8 or 16.

Optionally, the first configuration information is common RACH resource configuration information and/or dedicated RACH resource configuration information.

It should be understood that the steps in the wireless communication method 300 may refer to corresponding steps in the wireless communication method 200, and specifically, with respect to the first correspondence relationship, the second correspondence relationship, and the related description of the third correspondence relationship, reference may be made to the description in the wireless communication method 200, which is not repeated herein for brevity.

Fig. 6 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in fig. 6, the terminal device 400 includes:

A processing unit 410 for determining at least one first SSB, the measured value of which is greater than or equal to a first threshold value;

the processing unit 410 is further configured to determine a first physical uplink shared channel PUSCH resource corresponding to the at least one first SSB according to a first correspondence and a second correspondence, or determine a first PUSCH resource corresponding to the at least one first SSB according to a third correspondence, or determine a first PUSCH resource corresponding to the at least one first SSB according to a fourth correspondence, where the first PUSCH resource is used for transmitting data to be transmitted in a first piece of information in a two-step random access process, the first correspondence is a correspondence between SSB and RO resource, the second correspondence is a correspondence between RO resource and PUSCH resource, the third correspondence is a correspondence between SSB and PUSCH resource, and the fourth correspondence is a correspondence between a random access preamble and DMRS.

Optionally, the TBS supported by the first PUSCH resource is greater than or equal to the size of the data to be transmitted.

Optionally, if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted,

the processing unit 410 is further configured to determine at least one second SSB, wherein a measured value of the second SSB is less than the first threshold;

The processing unit 410 is further configured to determine a second PUSCH resource corresponding to the at least one second SSB according to the first correspondence and the second correspondence, or determine a second PUSCH resource corresponding to the at least one second SSB according to the third correspondence, or determine a second PUSCH resource corresponding to the at least one second SSB according to the fourth correspondence, where a TBS supported by the second PUSCH resource is greater than or equal to the size of the data to be transmitted.

Optionally, the processing unit 410 is specifically configured to:

determining at least M RO resources corresponding to the at least one first SSB according to the first corresponding relation;

determining a first RO resource from the at least M RO resources, wherein TBS supported by a PUSCH resource corresponding to the first RO resource in the second corresponding relation is larger than or equal to the size of the data to be transmitted;

And determining the first PUSCH resource according to the second corresponding relation and the first RO resource.

Optionally, if there are multiple RO resources in the at least M RO resources, and the TBS supported by the PUSCH resource corresponding to each of the multiple RO resources in the second correspondence is greater than or equal to the size of the data to be transmitted,

the processing unit 410 is specifically configured to:

randomly determining one of the plurality of RO resources as the first RO resource, or

And determining an RO resource which satisfies a first condition in the plurality of RO resources as the first RO resource, wherein the first condition is that TBS supported by the corresponding PUSCH resource in the second corresponding relation is larger than or equal to the size of the data to be transmitted.

Alternatively, the M is 8, 4 or 2.

Optionally, the processing unit 410 is specifically configured to:

determining at least one RO resource corresponding to the at least one first SSB according to the first corresponding relation;

determining at least Q PUSCH resources according to the second correspondence and the at least one RO resource;

The first PUSCH resource is determined among the at least Q PUSCH resources.

Alternatively, the N is 1, 2, 4, 8 or 16.

Optionally, the processing unit 410 is specifically configured to:

determining a random access preamble according to the at least one first SSB;

determining the DMRS corresponding to the random access preamble according to the fourth corresponding relation;

and determining the first PUSCH resource according to the DMRS.

Optionally, at least one of the first correspondence, the second correspondence, the third correspondence, and the fourth correspondence is preconfigured or configured for a network device.

Optionally, at least one of the first correspondence, the second correspondence, the third correspondence, and the fourth correspondence is configured for the network device through common RACH resource configuration information and/or dedicated RACH resource configuration information.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 400 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 4, which is not described herein for brevity.

Fig. 7 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in fig. 7, the network device 500 includes:

a communication unit 510, configured to send first configuration information to a terminal device, where the first configuration information is used for determining PUSCH resources for transmitting data to be transmitted in a first piece of information in a two-step random access process, the first configuration information includes at least one of a first corresponding relationship, a second corresponding relationship, a third corresponding relationship, and a fourth corresponding relationship, the first corresponding relationship is a corresponding relationship between SSB and RO resources, the second corresponding relationship is a corresponding relationship between RO resources and PUSCH resources, the third corresponding relationship is a corresponding relationship between SSB and PUSCH resources, and the fourth corresponding relationship is a corresponding relationship between a random access preamble and DMRS.

Optionally, the PUSCH resource for the first information supports Q kinds of transport block sizes TBS, Q being a positive integer.

Alternatively, the M is 8, 4 or 2.

Alternatively, the N is 1, 2, 4, 8 or 16.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 500 are respectively for implementing the corresponding flow of the network device in the method 300 shown in fig. 5, and are not further described herein for brevity.

Fig. 8 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. The communication device 600 shown in fig. 8 comprises a processor 610, from which the processor 610 may call and run a computer program to implement the method in the embodiments of the present application.

Optionally, as shown in fig. 8, the communication device 600 may further comprise a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, as shown in fig. 8, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.

Optionally, the communication device 600 may be specifically a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 600 may be specifically a mobile terminal/terminal device in the embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which are not described herein for brevity.

Fig. 9 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 700 shown in fig. 9 includes a processor 710, and the processor 710 may call and execute a computer program from a memory to implement the methods in the embodiments of the present application.

Optionally, as shown in fig. 9, the apparatus 700 may further comprise a memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the methods in embodiments of the present application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, the apparatus 700 may further comprise an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the apparatus 700 may further comprise an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the apparatus may be applied to a network device in the embodiments of the present application, and the apparatus may implement a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the apparatus may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the apparatus may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, a system-on-chip or a system-on-chip, etc.

Fig. 10 is a schematic block diagram of a communication system 800 provided in an embodiment of the present application. As shown in fig. 10, the communication system 800 includes a terminal device 810 and a network device 820.

The terminal device 810 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 820 may be used to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Proarammable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, which is not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiments of the present application, and the computer program instructions cause the computer to execute corresponding flows implemented by the network device in the methods in the embodiments of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiments of the present application, where the computer program when run on a computer causes the computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, and for brevity, will not be described herein.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. For such understanding, the technical solutions of the present application may be embodied in essence or in a part contributing to the prior art or in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

the terminal equipment determines at least one first synchronous signal block SSB, and the measured value of the first SSB is larger than or equal to a first threshold value;

the terminal equipment determines a first Physical Uplink Shared Channel (PUSCH) resource corresponding to the at least one first SSB according to a first corresponding relation and a second corresponding relation, wherein the first PUSCH resource is used for transmitting data to be transmitted in first information in a two-step random access process, the first corresponding relation is a corresponding relation between the SSB and a random access channel (RO) resource, the second corresponding relation is a corresponding relation between the RO resource and the PUSCH resource,

wherein the PUSCH resource for the first message supports Q transport block sizes TBS, Q being a positive integer,

Wherein one SSB in the first corresponding relation corresponds to M RO resources, the PUSCH resources corresponding to the M RO resources in the second corresponding relation at least support the Q TBSs, M is more than or equal to Q, M is an integer more than or equal to 2,

the determining, by the terminal device, a first PUSCH resource corresponding to the at least one first SSB according to the first correspondence and the second correspondence includes:

2. The method of claim 1, wherein a transport block size TBS supported by the first PUSCH resource is greater than or equal to a size of the data to be transmitted.

3. The method of claim 1, wherein if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted, the method further comprises:

The terminal device determines at least one second SSB, wherein a measured value of the second SSB is smaller than the first threshold value;

and the terminal equipment determines a second PUSCH resource corresponding to the at least one second SSB according to the first corresponding relation and the second corresponding relation, wherein TBS supported by the second PUSCH resource is larger than or equal to the size of the data to be transmitted.

4. The method of claim 1, wherein if there are a plurality of RO resources in the at least M RO resources and the TBS supported by the corresponding PUSCH resource in the second correspondence is greater than or equal to the size of the data to be transmitted,

the terminal device determining a first RO resource from the at least M RO resources, including:

the terminal device randomly determines one of the plurality of RO resources as the first RO resource, or

And the terminal equipment determines an RO resource which satisfies a first condition in the plurality of RO resources as the first RO resource, wherein the first condition is that TBS supported by the corresponding PUSCH resource in the second corresponding relation is larger than or equal to the size of the data to be transmitted.

5. The method according to any one of claims 1 to 4, wherein M is 8, 4 or 2.

6. The method of any of claims 1-4, wherein at least one of the first correspondence, the second correspondence is pre-configured or configured for a network device.

7. The method of claim 6, wherein at least one of the first correspondence and the second correspondence is configured for the network device by common random access channel, RACH, resource configuration information and/or dedicated RACH resource configuration information.

8. The method according to any of claims 1 to 4, wherein the first threshold is preconfigured or configured for a network device.

9. A method of wireless communication, comprising:

wherein N SSBs in the first correspondence correspond to one RO resource, and PUSCH resources corresponding to each RO resource in the second correspondence support at least the Q TBSs, where N is a positive integer.

10. The method of claim 9, wherein a transport block size TBS supported by the first PUSCH resource is greater than or equal to a size of the data to be transmitted.

11. The method of claim 9, wherein if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted, the method further comprises:

12. The method of claim 9, wherein the determining, by the terminal device, the first PUSCH resource corresponding to the at least one first SSB according to the first correspondence and the second correspondence, comprises:

the terminal device determines the first PUSCH resource from the at least Q PUSCH resources.

13. The method according to any one of claims 9 to 12, wherein N is 1, 2, 4, 8 or 16.

14. The method according to any of claims 9 to 12, wherein at least one of the first correspondence, the second correspondence is pre-configured or configured for a network device.

15. The method according to claim 14, wherein at least one of the first correspondence and the second correspondence is configured for the network device by common random access channel, RACH, resource configuration information and/or dedicated RACH resource configuration information.

16. The method according to any of claims 9 to 12, wherein the first threshold is preconfigured or configured for a network device.

17. A method of wireless communication, comprising:

The network device sends first configuration information to the terminal device, the first configuration information is used for the terminal device to determine a Physical Uplink Shared Channel (PUSCH) resource for transmitting data to be transmitted in a first piece of information in a two-step random access process, the first configuration information comprises a first corresponding relation and a second corresponding relation, the first corresponding relation is a corresponding relation between a Synchronous Signal Block (SSB) and a random access channel (RO) resource, the second corresponding relation is a corresponding relation between the RO resource and the PUSCH resource,

18. The method of claim 17, wherein N is 1, 2, 4, 8 or 16.

19. The method according to claim 17 or 18, wherein the first configuration information is common random access channel, RACH, resource configuration information and/or dedicated RACH resource configuration information.

20. A terminal device, comprising:

A processing unit for determining at least one first synchronization signal block SSB, the measured value of the first SSB being greater than or equal to a first threshold value;

the processing unit is further configured to determine a first physical uplink shared channel PUSCH resource corresponding to the at least one first SSB according to a first correspondence and a second correspondence, where the first PUSCH resource is used for transmitting data to be transmitted in a first piece of information in a two-step random access procedure, the first correspondence is a correspondence between SSB and a random access channel opportunistic RO resource, the second correspondence is a correspondence between RO resource and PUSCH resource,

wherein, the processing unit is specifically configured to:

determining a first RO resource from the at least M RO resources, wherein TBS supported by PUSCH resources corresponding to the first RO resource in the second corresponding relation is larger than or equal to the size of the data to be transmitted;

21. The terminal device of claim 20, wherein a transport block size TBS supported by the first PUSCH resource is greater than or equal to a size of the data to be transmitted.

22. The terminal device of claim 20, wherein if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted,

the processing unit is further configured to determine at least one second SSB, wherein a measured value of the second SSB is less than the first threshold;

the processing unit is further configured to determine a second PUSCH resource corresponding to the at least one second SSB according to the first correspondence and the second correspondence, where a TBS supported by the second PUSCH resource is greater than or equal to the size of the data to be transmitted.

23. The terminal device of claim 20, wherein if there are a plurality of RO resources among the at least M RO resources and the TBS supported by the corresponding PUSCH resource in the second correspondence for each of the plurality of RO resources is greater than or equal to the size of the data to be transmitted,

The processing unit is specifically configured to:

24. The terminal device according to any of claims 20 to 23, wherein M is 8, 4 or 2.

25. The terminal device according to any of the claims 20 to 23, wherein at least one of the first correspondence, the second correspondence is pre-configured or configured for a network device.

26. The terminal device according to claim 25, wherein at least one of the first correspondence and the second correspondence is configured for the network device by common random access channel RACH resource configuration information and/or dedicated RACH resource configuration information.

27. The terminal device according to any of the claims 20 to 23, characterized in that the first threshold is preconfigured or configured for a network device.

28. A terminal device, comprising:

wherein the PUSCH resource for the first message supports Q kinds of TBSs, Q being a positive integer,

29. The terminal device of claim 28, wherein a transport block size TBS supported by the first PUSCH resource is greater than or equal to a size of the data to be transmitted.

30. The terminal device of claim 28, wherein if the TBS supported by the first PUSCH resource is smaller than the size of the data to be transmitted,

31. The terminal device according to claim 28, wherein the processing unit is specifically configured to:

and determining the first PUSCH resource in the at least Q PUSCH resources.

32. The terminal device according to any of claims 28 to 31, wherein N is 1, 2, 4, 8 or 16.

33. The terminal device according to any of the claims 28 to 31, wherein at least one of the first correspondence, the second correspondence is pre-configured or configured for a network device.

34. The terminal device according to claim 33, wherein at least one of the first correspondence and the second correspondence is configured for the network device by common random access channel RACH resource configuration information and/or dedicated RACH resource configuration information.

35. The terminal device according to any of the claims 28 to 31, characterized in that the first threshold is preconfigured or configured for a network device.

36. A network device, comprising:

a communication unit, configured to send first configuration information to a terminal device, where the first configuration information is used for the terminal device to determine a PUSCH resource of a physical uplink shared channel for transmitting data in a first piece of information in a two-step random access process, the first configuration information includes a first correspondence and a second correspondence, the first correspondence is a correspondence between a synchronization signal block SSB and a random access channel opportunistic RO resource, the second correspondence is a correspondence between an RO resource and a PUSCH resource,

37. The network device of claim 36, wherein N is 1, 2, 4, 8, or 16.

38. The network device according to claim 36 or 37, wherein the first configuration information is common random access channel, RACH, resource configuration information and/or dedicated RACH resource configuration information.

39. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 16.

40. A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 17 to 19.

41. An apparatus, comprising: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method of any one of claims 1 to 16.

42. An apparatus, comprising: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method of any of claims 17 to 19.

43. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 16.

44. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 17 to 19.