CN114679783A

CN114679783A - BWP conversion method, device, terminal and network side equipment

Info

Publication number: CN114679783A
Application number: CN202011560833.5A
Authority: CN
Inventors: 苗金华; 傅婧; 曾二林
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-06-28

Abstract

The invention provides a BWP conversion method, a device, a terminal and network side equipment, wherein the method comprises the following steps: converting to a first BWP indicated by a BWP conversion identifier according to the BWP conversion identifier included in a target message in a random access process; or, after determining that the random access fails, transitioning to a second BWP; the second BWP is: the initial BWP, or the BWP with the signal quality greater than the first threshold, or the BWP with the subcarrier spacing greater than the second threshold; the embodiment of the invention solves the problem of how the terminal performs BWP conversion in the random access process.

Description

BWP conversion method, device, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a BWP conversion method, apparatus, terminal, and network side device.

Background

The Small Data Transmission (SDT) refers to that when the terminal is in an IDLE state or an inactive state, and when the Data amount is less than a certain threshold, or the number of Data packets is less than a certain Data amount, the terminal can maintain the IDLE state or the inactive state to perform Data Transmission without entering a connected state. Therefore, signaling overhead and power consumption of the terminal are reduced, and data transmission delay is reduced.

When the terminal performs SDT transmission, in order to meet the requirement of a large number of SDT users, the network side configures a separate BandWidth Part (BWP), which may be referred to as SDT BWP for the terminal performing SDT. When the SDT terminal needs to perform data transmission, SDT transmission may be performed on transition to SDT BWP. However, if the terminal is on the SDT BWP, and after the SDT transmission fails to be performed, or the network side finds that there are many terminals on the SDT BWP, how the terminal operates, there is no solution in the prior art.

Disclosure of Invention

The present invention provides a BWP conversion method, apparatus, terminal and network device, so as to solve the problem in the prior art that BWP conversion cannot be implemented in the random access process.

In order to solve the above problem, an embodiment of the present invention provides a method for converting a bandwidth part BWP, which is performed by a terminal, and includes:

converting to a first BWP indicated by a BWP conversion identification according to the BWP conversion identification included by a target message in a random access process;

or,

transitioning to a second BWP upon determining that random access fails; the second BWP is: the initial BWP is either the BWP with the signal quality greater than the first threshold or the BWP with the subcarrier spacing greater than the second threshold.

Wherein the target message comprises any one of:

the random access response message of the random access;

downlink control information for scheduling random access response of the four-step random access;

four steps of contention resolution message of random access;

message B of two-step random access.

Wherein the method further comprises any one of:

the random access response RAR window of the four-step random access is overtime, and the random access failure is determined;

the competition window of the random access is overtime, and the random access failure is determined;

in a competition window of the random access, a competition resolving signaling corresponding to the terminal is not received, and the random access failure is determined;

in the contention window of the four-step random access, the decoding fails;

and the message B window of the two-step random access is overtime, and the random access failure is determined.

Wherein, after the terminal is transitioned to the first BWP, the method further comprises:

continuing to transmit first data on the first BWP;

or,

re-initiating a random access procedure on the first BWP;

or,

re-initiating a random access procedure on a beam on the first BWP having a channel quality above a third threshold.

Wherein the resuming the transmission of the first data on the first BWP comprises:

Sending a message 3 of four-step random access on the first BWP, the message 3 including the first data;

or,

transmitting a message A of two-step random access including the first data on the first BWP.

Wherein after the terminal transitions to the second BWP, the method further comprises:

re-initiating a random access procedure on the second BWP;

or,

re-initiating a random access procedure on a beam on the second BWP having a channel quality above a third threshold.

An embodiment of the present invention further provides a method for converting a bandwidth portion BWP, where the method is performed by a network-side device, and the method includes:

sending a target message in the random access process; the target message comprises a BWP conversion identifier;

the BWP conversion id is used to instruct the terminal to convert to the first BWP.

Wherein the target message comprises any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

message B of two-step random access.

The embodiment of the invention also provides a terminal which is characterized by comprising a memory, a transceiver and a processor;

A memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

or,

Wherein the target message comprises any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

message B of two-step random access.

Wherein the processor is further configured to read the computer program in the memory and perform the following operations:

In the contention window of the four-step random access, the decoding fails;

continuing to transmit first data on the first BWP;

or,

re-initiating a random access procedure on the first BWP;

or,

transmitting a message A of two-step random access on the first BWP, the message A including the first data.

re-initiating a random access procedure on the second BWP;

or,

An embodiment of the present invention further provides a BWP conversion device, which is applied to a terminal, and includes:

A converting unit, configured to convert to a first BWP indicated by a BWP conversion identifier according to a BWP conversion identifier included in a target message in a random access procedure;

or, for transitioning to a second BWP after determining that the random access fails; the second BWP is: the initial BWP is either the BWP with the signal quality greater than the first threshold or the BWP with the subcarrier spacing greater than the second threshold.

The embodiment of the invention also provides network side equipment, which comprises a memory, a transceiver and a processor;

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following:

Wherein the target message comprises any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

message B of two-step random access.

An embodiment of the present invention further provides a BWP conversion apparatus, which is applied to a network device, and includes:

a sending unit, configured to send a target message in a random access process; the target message comprises a BWP conversion identifier;

An embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to execute the method described above.

The technical scheme of the invention at least has the following beneficial effects:

in the BWP conversion method, apparatus, terminal and network-side device of the embodiments of the present invention, the terminal performs BWP conversion when receiving the BWP conversion identifier indicated in the target message of the network-side device in the random access process, or the terminal performs BWP conversion after determining that the random access fails; the problem of how to perform BWP conversion by the terminal in the random access process is solved.

Drawings

Fig. 1 illustrates a block diagram of a wireless communication system in which embodiments of the present invention are applicable;

FIG. 2 is a schematic diagram illustrating one of the steps of a BWP conversion method according to an embodiment of the present invention;

FIG. 3 is a second schematic diagram illustrating steps of a BWP conversion method according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a format of an RAR in the BWP conversion method according to an embodiment of the present invention;

fig. 5 is a diagram illustrating a second format of an RAR in the BWP conversion method according to the second embodiment of the present invention;

fig. 6 is a third schematic diagram illustrating a format of an RAR in the BWP conversion method according to the third embodiment of the present invention;

fig. 7 is a diagram illustrating a format of a message 4 in a BWP conversion method according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a BWP conversion apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 11 is a second schematic structural diagram of a BWP conversion device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present invention are applicable. The wireless communication system includes a terminal apparatus 11 and a network-side apparatus 12. The terminal device 11 may also be referred to as a terminal or a User Equipment (UE). 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, and it should be noted that in this embodiment, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

In the embodiment of the present invention, the term "and/or" describes an association relationship of an associated object, and indicates that three relationships may exist, for example, a and/or B, and may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a conversion method and a conversion device for BWP, which are used for realizing conversion of BWP in a random access process.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Mobile Access (WiMAX) system, a New Radio network (NR 5) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for serving a terminal. A base station may also be called an access point, or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next evolution System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, which are not limited in the embodiments of the present application. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple Input Multiple Output (MIMO) transmission may be performed between the network device and the terminal device by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

As shown in fig. 2, an embodiment of the present invention provides a method for converting a bandwidth part BWP, where the method is performed by a terminal, and the method includes:

step 201, according to the BWP conversion id included in the target message in the random access process, converting to the first BWP indicated by the BWP conversion id;

or,

Optionally, the BWP converts the ID identified as the first BWP.

In the embodiment of the invention, the terminal executes the BWP conversion after receiving the BWP conversion identification indicated by the network side equipment in the target message in the random access process, or the terminal executes the BWP conversion after determining that the random access fails; the problem of how to perform BWP conversion by the terminal in the random access process is solved.

It should be noted that the contention-based random access procedure is divided into 2 types, four-step random access and two-step random access, where the two-step random access is introduced to save the random access delay.

In the four-step random access process, the method comprises 4 steps: the terminal sends MSG1 (i.e. preamble), the terminal receives MSG2 (i.e. random access response RAR), the terminal sends MSG3 (the uplink grant of MSG3 is sent through RAR), and the terminal receives MSG4 (i.e. contention resolution message).

While two-step random access combines MSG1 and MSG3 in MSG a for transmission and begins receiving MSG B. There are several MSG B:

success RAR, which indicates that MSGA successfully receives;

and the fallback RAR represents that the terminal needs to be fallback to the four-step random access.

As an alternative embodiment, the target message includes any one of the following:

a random access response message (also referred to as MSG2 or message 2) of four-step random access;

contention resolution message of four-step random access (also referred to as MSG4 or message 4);

message B of two-step random access (i.e., MSG B).

As another alternative, the method further comprises any one of:

in the contention window of the four-step random access, the decoding fails;

Bearing in the above example, in at least one embodiment of the present invention, after the terminal transitions to the first BWP, the method further includes:

continuing to transmit first data on the first BWP; for example, in case the available resources on the first BWP are able to carry the remaining first data, the first data is continuously sent on said first BWP. Optionally, the first data is MDT data.

Or,

re-initiating a random access procedure on the first BWP;

or,

sending a message 3 of four-step random access on the first BWP, the message 3 including the first data; for example, if the message 2 or DCI or message B (the message B is fallback rar) carries the BWP conversion id, the first data may be continuously sent in the message 3;

Or,

sending a message A of two-step random access on the first BWP, wherein the message A comprises the first data; for example, the message B (the message B is fallback rar) carries the BWP conversion id, the message B may fall back to the message 3 to continue sending the first data.

As another alternative, after the terminal transitions to the second BWP, the method further comprises:

re-initiating a random access procedure on the second BWP;

or,

It should be noted that, in the embodiment of the present invention, the first threshold, the second threshold, and/or the third threshold may be configured by a network side device, or may be preset, and is not specifically limited herein.

Example 1, BWP conversion is performed after RAR window timeout for four-step random access

The method comprises the following steps: the network configures the parameters of the SDT; the network side informs the SDT parameters through a broadcast message or a dedicated message, such as an RRC release message. The SDT parameters include one or more of the following parameters:

a resource location of random access;

preamble information;

whether the configuration location of the SDT BWP, such as the BWP ID, can perform initial access on the SDT BWP, PUCCH (Physical Uplink Control Channel) information on the BWP, PUSCH (Physical Uplink Shared Channel) information, configuration authorization information, and the like;

A first signal threshold value at which a terminal (UE) performs SDT transmission; the Signal may be RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), RSSI (Received Signal Strength Indication), SINR (Signal to Interference plus Noise Ratio), without limitation.

The terminal selects SDT BWP to execute second signal threshold information of SDT; the signal may be) RSRP, RSRQ, RSSI, SINR, without limitation.

Step two: after the terminal judges that the SDT transmission condition is met, executing SDT transmission;

when there is small data arriving and the conditions for performing SDT transmission on SDT BWP are met, e.g. above the second signal threshold configured in step one, the UE selects to perform SDT on SDT BWP.

Step three: UE selects a preamble and executes preamble transmission;

step four: and the UE opens an RAR receiving window, and during the operation of the RAR window, the UE executes RAR receiving.

Step five, after the RAR window is overtime, the UE still does not receive RAR related to itself, and the UE performs BWP conversion:

the UE may transition to initial BWP (initial BWP); or,

UE converts to BWP with better signal quality; or the like, or a combination thereof,

the UE converts to a SCS larger BWP.

The UE re-performs the random access procedure on the converted BWP (i.e. initiates a new SDT access procedure); or, the UE selects a beam with channel quality higher than a certain threshold on the converted BWP to perform a random access procedure.

Example 2, BWP transition is performed after timeout of contention window for four-step random access

The method comprises the following steps: after the terminal judges that the SDT transmission condition is met, the terminal executes SDT transmission;

when small data arrives and the condition for performing SDT transmission on the SDT BWP is met, e.g., above a second signal threshold value configured by the network, the UE selects to perform SDT on the SDT BWP.

Step two: UE selects a preamble and executes preamble transmission;

step three: and the UE opens an RAR receiving window, and during the operation of the RAR window, the UE executes RAR receiving.

Step four: the UE receives RAR;

step five: UE sends MSG 3 and opens the random access competition window;

step six: when contention resolution fails, the UE performs BWP conversion:

the UE may transition to initial BWP (initial BWP); or,

UE converts to BWP with better signal quality; or,

the UE converts to a larger BWP for SCS.

The contention resolution failure includes: the message received in the contention window is not a message corresponding to the UE, or the message corresponding to the UE still cannot be received after the contention window is overtime, or the UE fails to decode in the contention window of the random access.

Example 3 performing BWP transition after message B Window timeout for two-step random Access

The method comprises the following steps: after the UE judges that the SDT transmission condition is met, the SDT transmission is executed;

when small data arrives and the condition for performing SDT transmission on the SDT BWP is met, e.g., above a second signal threshold value configured by the network, the UE selects to perform SDT on the SDT BWP. The UE performs 2 two-step random access and four-step random access selection processes and determines to perform two-step random access.

Step two: and the UE selects the Preamble and executes MSGA transmission, wherein the MSGA comprises the Preamble and the PUSCH part. The PUSCH content may include RRC signaling and/or SDT data.

Step three: the UE opens an MSGB receiving window, and during the running of the MSGB window, the UE executes MSGB receiving.

Step four: when the MSGB window is overtime, the UE does not receive RAR aiming at the UE, and the UE executes BWP conversion:

the UE may transition to initial BWP (initial BWP); or,

UE converts to BWP with better signal quality; or,

The UE converts to a SCS larger BWP.

The UE re-executes the random access procedure on the converted BWP (i.e. initiates a new SDT access procedure); or, the UE selects a beam with channel quality higher than a certain threshold on the converted BWP to perform a random access procedure.

In summary, in the embodiment of the present invention, the terminal performs BWP conversion after receiving the BWP conversion id indicated in the target message of the network-side device in the random access process, or after determining that the random access fails, performs BWP conversion; the problem of how to perform BWP conversion by the terminal in the random access process is solved.

As shown in fig. 3, an embodiment of the present invention further provides a method for converting a bandwidth portion BWP, where the method is performed by a network-side device, and the method includes:

step 301, sending a target message in a random access process; the target message comprises a BWP conversion identifier; wherein the BWP conversion identifier is used for indicating the terminal to convert to the first BWP.

Optionally, the BWP converts the ID identified as the first BWP.

As an alternative embodiment, the target message includes any one of:

a random access response message of four-step random access (which may also be referred to as MSG2 or message 2);

Contention resolution message for four-step random access (also referred to as MSG4 or message 4);

message B of two-step random access (i.e., MSG B).

Example 4, RAR or DCI in four-step random access includes BWP handover identification

The method comprises the following steps: parameters of the network configuration SDT; the network side informs the SDT parameters through a broadcast message or a dedicated message, such as an RRC release message or a broadcast message. The SDT parameters include one or more of the following parameters:

a resource location of random access;

preamble information;

a configuration location of the SDT BWP, such as BWP ID, whether initial access can be performed on the SDT BWP, PUCCH information on the BWP, PUSCH information, configuration authorization information, and the like;

a first signal threshold value at which a terminal (UE) performs SDT transmissions; the signal may be RSRP, RSRQ, RSSI, SINR, without limitation.

The terminal selects SDT BWP to execute second signal threshold information of SDT; the signal may be RSRP, RSRQ, RSSI, SINR, without limitation.

Step two: after the terminal judges that the SDT transmission condition is met, the terminal executes SDT transmission;

when the small data arrives and the condition for performing the SDT transmission on the SDT BWP is satisfied, for example, higher than the second signal threshold configured in step one, the UE selects to perform the SDT on the SDT BWP.

Step three: UE selects a preamble and executes preamble sending;

Step five: when the UE receives the RAR aiming at the UE; when the RAR contains the BWP conversion identification, the UE performs BWP conversion and performs the following steps at the indicated BWP:

continuing to send the MSG3, wherein the MSG3 contains the SDT data;

or, re-executing the random access procedure (i.e. initiating a new SDT access procedure);

or, a random access procedure is performed on the indicated BWP by selecting a beam with a channel quality above a certain threshold.

The BWP conversion flag may be increased by: the RAR adds a BWP ID, which is the first BWP ID, i.e. the BWP ID to which the UE is about to switch. Fig. 4 shows the format of BWP IE in RAR.

Or increase BWP ID in DCI format 1_ 0. DCI format 1_0 is a DCI format of a scheduling RAR, but the current DCI format does not support BWP conversion, so BWP ID is added to the DCI format so that DCI format 1_0 can support BWP conversion.

When there is no BWP handover id in the RAR, the UE continues to send MSG3 on SDT BWP, which may contain SDT data and/or RRC signaling in MSG 3.

Step six: the UE receives the MSG 5;

step seven: and the UE finishes the SDT transmission according to the indication of the network side.

Example 5, MSGB includes BWP transition identity in two-step random access.

Step two: and the UE selects the Preamble and executes MSGA transmission, wherein the MSGA comprises the Preamble and the PUSCH part. The PUSCH content may include RRC signaling and SDT data.

Step four: when the UE receives the BWP conversion identification contained in the RAR for the UE, the UE executes the BWP conversion and executes the following steps at the indicated BWP:

continuing to send the MSG3, wherein the MSG3 contains the SDT data;

The RAR may be success RAR or fallback RAR.

The BWP conversion flag may be increased by: and increasing a BWP ID in the success RAR or the fallback RAR, wherein the BWP ID is a first BWP ID, namely the BWP ID to which the UE is to be switched.

The format of the success rar including the BWP ID is shown in fig. 5, and the format of the fallback rar including the BWP ID is shown in fig. 6.

When there is no BWP conversion identity in the RAR, the UE continues to perform SDT procedures on SDT BWP.

And step five, the UE ends the SDT transmission according to the network side instruction.

Example 6, MSG4 in four-step random Access includes BWP switch ID

The method comprises the following steps: after the terminal judges that the SDT transmission condition is met, executing SDT transmission;

when small data arrives and a condition for performing SDT transmission on the SDT BWP is met, e.g., above a second signal threshold value configured by the network, the UE selects to perform SDT on the SDT BWP.

Step two: UE selects a preamble and executes preamble sending;

Step four: the UE receives the RAR aiming at the UE and executes MSG3 transmission;

step five: the UE receives MSG 4. The network side instructs the UE to perform BWP conversion in MSG4, which may be the first BWP ID. The format in which the BWP ID is contained in a particular MSG4 may be as shown in fig. 7.

Step six: the terminal continues to execute SDT transmission;

As shown in fig. 8, an embodiment of the present invention further provides a terminal, which includes a memory 820, a transceiver 810, a processor 800;

a memory 820 for storing a computer program; a transceiver 810 for transceiving data under the control of the processor; a processor 800 for reading the computer program in the memory 820 and performing the following operations:

or,

As an alternative embodiment, the target message includes any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

message B of two-step random access.

As an alternative embodiment, the processor is further configured to read the computer program in the memory and perform the following operations:

in the contention window of the four-step random access, the decoding fails;

continuing to transmit first data on the first BWP;

or,

re-initiating a random access procedure on the first BWP;

or,

re-initiating a random access procedure on the second BWP;

or,

Where in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The user interface 830 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 600 in performing operations.

Alternatively, the processor 800 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

The processor is used for executing any method provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted here.

As shown in fig. 9, an embodiment of the present invention further provides a BWP conversion apparatus, which is applied to a terminal and includes:

a converting unit 901, configured to convert to a first BWP indicated by a BWP conversion identifier according to the BWP conversion identifier included in the target message in the random access procedure;

four-step random access response message of random access;

four steps of contention resolution message of random access;

message B of two-step random access.

As an alternative embodiment, the apparatus further comprises any one of:

a first failure determining unit, configured to determine that random access fails when a random access response RAR window of the four-step random access is overtime;

a second failure determining unit, configured to determine that the random access fails when a contention window of the four-step random access is overtime;

a third failure determining unit, configured to determine that the random access fails without receiving a contention resolution signaling corresponding to the terminal in a contention window of the four-step random access;

and a fourth failure determining unit, configured to determine that the random access fails when the message B window of the two-step random access is overtime.

As an optional embodiment, the apparatus further comprises:

a first processing unit configured to continue to transmit first data on the first BWP;

or, to re-initiate a random access procedure on the first BWP;

or, for re-initiating a random access procedure on a beam on the first BWP where the channel quality is above a third threshold.

As an alternative embodiment, the first processing unit is further configured to:

or,

As an alternative embodiment, the apparatus further comprises:

a second processing unit to reinitiate a random access procedure on the second BWP;

or, to re-initiate a random access procedure on a beam on the second BWP where the channel quality is above a third threshold.

It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

As shown in fig. 10, an embodiment of the present invention further provides a network device, which includes a memory 120, a transceiver 110, a processor 100;

a memory 120 for storing a computer program; a transceiver 110 for transceiving data under the control of the processor; a processor 100 for reading the computer program in the memory and performing the following operations:

As an alternative embodiment, the target message includes any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

message B of two-step random access.

Where in fig. 10 the bus architecture may include any number of interconnected buses and bridges, with various circuits of one or more processors, represented by processor 100, and memory, represented by memory 120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 110 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 100 is responsible for managing the bus architecture and general processing, and the memory 120 may store data used by the processor 100 in performing operations.

The processor 100 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.

It should be noted that, the network side device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

As shown in fig. 11, an embodiment of the present invention further provides a BWP conversion apparatus, which is applied to a network-side device, and includes:

a sending unit 1101, configured to send a target message in a random access procedure; the target message comprises a BWP conversion identifier;

As an alternative embodiment, the target message includes any one of:

the random access response message of the random access;

Four steps of contention resolution message of random access;

message B of two-step random access.

It should be noted that, in the embodiment of the present application, the division of the unit is schematic, and is only one logic function division, and when the actual implementation is realized, another division manner may be provided. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It should be noted that the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

At least one embodiment of the invention also provides a processor-readable storage medium having stored thereon a computer program for causing a processor to execute the method as described above; the processor-readable storage medium may be any available media or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for bandwidth portion BWP conversion, performed by a terminal, the method comprising:

converting to a first BWP indicated by a BWP conversion identifier according to the BWP conversion identifier included in a target message in a random access process;

or,

2. The method of claim 1, wherein the target message comprises any one of:

four-step random access response message of random access;

four steps of contention resolution message of random access;

message B of two-step random access.

3. The method of claim 1, further comprising any one of:

in the contention window of the four-step random access, the decoding fails;

and when the message B window of the two-step random access is overtime, determining that the random access fails.

4. The method of claim 1, wherein after the terminal transitions to the first BWP, the method further comprises:

continuing to transmit first data on the first BWP;

or,

re-initiating a random access procedure on the first BWP;

Or,

5. The method of claim 4, wherein said resuming the transmission of the first data on the first BWP comprises:

or,

6. The method of claim 1, wherein after the terminal transitions to the second BWP, the method further comprises:

re-initiating a random access procedure on the second BWP;

or,

7. A method for converting a bandwidth part BWP, performed by a network-side device, the method comprising:

8. The method of claim 7, wherein the target message comprises any one of:

Four-step random access response message of random access;

four steps of contention resolution message of random access;

message B of two-step random access.

9. A terminal comprising a memory, a transceiver, a processor;

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

or,

10. The terminal of claim 9, wherein the target message comprises any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

Message B of two-step random access.

11. The terminal of claim 9, wherein the processor is further configured to read the computer program in the memory and perform the following:

in the contention window of the four-step random access, the decoding fails;

12. The terminal of claim 9, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

continuing to transmit first data on the first BWP;

or,

re-initiating a random access procedure on the first BWP;

or,

13. The terminal of claim 12, wherein the processor is further configured to read the computer program in the memory and perform the following operations:

Sending a message 3 of four-step random access on the first BWP, wherein the message 3 comprises the first data;

or,

14. The terminal of claim 9, wherein the processor is further configured to read the computer program in the memory and perform the following:

re-initiating a random access procedure on the second BWP;

or,

15. A BWP conversion device, applied to a terminal, comprising:

a conversion unit, configured to convert to a first BWP indicated by a BWP conversion id according to the BWP conversion id included in a target message in a random access procedure;

or, for transitioning to a second BWP upon determining that the random access failed; the second BWP is: the initial BWP is either the BWP with the signal quality greater than the first threshold or the BWP with the subcarrier spacing greater than the second threshold.

16. A network-side device, comprising a memory, a transceiver, a processor;

17. The network-side device of claim 16, wherein the target message comprises any one of:

the random access response message of the random access;

four steps of contention resolution message of random access;

message B of two-step random access.

18. A BWP conversion apparatus, applied to a network-side device, comprising:

19. A processor-readable storage medium, wherein the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 6; alternatively, the computer program is for causing the processor to perform the method of claim 7 or 8.