CN110545582B

CN110545582B - Random access resource determination method and terminal

Info

Publication number: CN110545582B
Application number: CN201810535230.6A
Authority: CN
Inventors: 岳然; 吴昱民
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2021-09-03
Anticipated expiration: 2038-05-29
Also published as: CN110545582A

Abstract

The invention discloses a method and a terminal for determining random access resources, wherein the method comprises the following steps: selecting one BWP from a bandwidth part BWP set configured for the terminal to determine as a target BWP; determining a target synchronization signal block SSB according to the target BWP; and determining a PRACH transmission opportunity of a target physical random access channel according to the target SSB. The embodiment of the invention can quickly determine the BWP and the random access resource of the random access process in the scene of multi-activation BWP, and ensure that the random access process is normally carried out when a plurality of activation BWPs exist in the terminal.

Description

Random access resource determination method and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and a terminal for determining random access resources.

Background

In a New Radio (NR) system, a cell supports a system bandwidth of 400MHz at maximum, which is much larger than a system bandwidth of 20MHz supported by Long Time Evolution (LTE) at maximum, so that the NR system can support greater system and user throughput. However, supporting such a large system bandwidth would be a great challenge for the implementation of the terminal, and is not favorable for the implementation of the low-cost terminal. Therefore, to achieve dynamic and flexible bandwidth allocation of the NR system, the system bandwidth may be divided into a plurality of bandwidth parts (BWPs) to support access of the narrowband terminal or the terminal in the power saving mode.

Meanwhile, NR cells also support different resource configurations (Numerology) configured at different bandwidths, and if a terminal cannot support all Numerology of a cell, it may avoid configuring a corresponding frequency band to the terminal when configuring BWP for the terminal. Specifically, the network device may configure a BWP set available to each cell for the terminal through Radio Resource Control (RRC) signaling, and dynamically switch the BWPs to be started through layer one (L1) signaling, that is, activate one BWP and deactivate the currently activated BWP.

In addition, the terminal may initialize a Random Access process on the activated BWP, specifically, after determining the current activated BWP, the terminal determines an SSB according to the measurement result of the Synchronization Signal Block (SSB) detected on the activated BWP, and further determines a PRACH allocation according to the association between the SSB and the transmission timing of the Physical Random Access Channel (PRACH allocations), and simultaneously selects an available preamble (preamble), thereby completing resource selection for Random Access. However, for a scenario in which multiple BWPs are simultaneously activated, i.e., the terminal supports multiple active BWPs, the terminal cannot determine and select random access resources for initializing the random access procedure.

Disclosure of Invention

The embodiment of the invention provides a method and a terminal for determining random access resources, which are used for solving the problem of determining the random access resources in a multi-activation BWP scene.

In a first aspect, an embodiment of the present invention provides a method for determining random access resources, including:

selecting one BWP from a bandwidth part BWP set configured for the terminal to determine as a target BWP;

determining a target synchronization signal block SSB according to the target BWP;

and determining a PRACH transmission opportunity of a target physical random access channel according to the target SSB.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

a first processing module, configured to select one BWP from a bandwidth part BWP set configured for a terminal to determine as a target BWP;

a second processing module, configured to determine a target synchronization signal block SSB according to the target BWP;

and the third processing module is used for determining a PRACH transmission opportunity of a target physical random access channel according to the target SSB.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and the computer program, when executed by the processor, implements the steps of the random access resource determining method described above.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the random access resource determination method described above.

Thus, the embodiment of the present invention, through the above technical solution, can quickly determine the BWP and the random access resource in the random access process in a multi-active BWP scenario, and ensure that the random access process is normally performed when multiple active BWPs exist in the terminal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a block diagram of a mobile communication system in which the practice of the present invention is applicable;

fig. 2 is a flowchart illustrating a method for determining random access resources according to an embodiment of the present invention;

fig. 3 is a schematic block diagram of a terminal according to an embodiment of the present invention;

fig. 4 shows a block diagram of a terminal according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Time Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station in the NR system is taken as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

The method for determining random access resources of the embodiment of the present invention is applied to a terminal side, as shown in fig. 2, and includes the following steps:

step 21: in the bandwidth part BWP set configured for the terminal, one BWP is selected to be determined as the target BWP.

The BWP set herein refers to a set of available BWPs configured for the terminal by the network device through RRC signaling, where the BWP in the BWP set may be a cell or multiple cells, which is not limited in the embodiment of the present invention.

Step 22: based on the target BWP, a target synchronization signal block SSB is determined.

Wherein, a plurality of SSBs may exist on one BWP, and after determining the target BWP, the terminal may determine the target SSB according to the SSB detected on the target BWP.

Step 23: and determining a PRACH transmission opportunity of a target physical random access channel according to the target SSB.

After determining the target SSB, the terminal may determine the target PRACH occasting according to whether the target SSB has a relationship with the PRACH occasting. Therefore, even if a plurality of active BWPs exist, the terminal can still quickly determine the BWP and the random access resource of the random access process, and the random access process is ensured to be normally carried out when the plurality of active BWPs exist.

The following embodiment will further describe how to determine the target BWP, the target SSB and the target PRACH occase in combination with specific determination manners.

Step 21 may be implemented by, but is not limited to:

in the first mode, at least part of BWPs in the BWP set is randomly selected to be determined as the target BWP.

The method comprises the following steps: the terminal may randomly select one BWP from at least a portion of the BWPs in the available BWP set configured for the terminal by the network device to determine as the target BWP. At least part of what is said herein is part or all, for example at least part of: a first BWP subset configured with PRACH occase, or a second BWP subset with measurement configuration (configured with measurement) or measurement results, or all BWPs. For example, the BWP set configured by the network device for the terminal includes: BWP1, BWP2, BWP3 and BWP4, and BWP equipped with PRACH occasting has BWP2 and BWP3, then BWP2 and BWP3 are included in the first BWP subset. In addition, the measurement configuration or configured measurement refers to the BWP measurement configurations related to the network device configuration. For example, the BWP set configured by the network device for the terminal includes: BWP1, BWP2, BWP3, and BWP4, and the measurement objects of the measurement configuration of the network device configuration are BWP1 and BWP4, then BWP1 and BWP4 are included in the second BWP subset. That is, the first method includes:

mode 1, in at least part of BWPs in a first BWP subset in which a PRACH transmission opportunity is configured in a BWP set, randomly selecting one BWP to determine as a target BWP. At least some of the references herein should also be understood to refer, in whole or in part, to the difference in at least some of the ways 1 includes, but is not limited to, the following:

in the method 1-1, one BWP is randomly selected from all BWPs in a first BWP subset in which a PRACH transmission opportunity is configured in a BWP set, and the BWP is determined as a target BWP. That is, the terminal randomly selects one BWP as a target BWP among all configured (including activated and inactivated) BWPs configured with PRACH category. For example, the BWP collection includes: BWP1, BWP2, BWP3 and BWP4, and BWPs equipped with PRACH occasting have BWP2 and BWP3, so the terminal can randomly select one target BWP from BWP2 and BWP3 regardless of whether BWP2 and BWP3 are activated.

Manner 1-2, in the activated BWPs in the first BWP subset, a BWP is randomly selected to be determined as the target BWP. That is, the terminal randomly selects one BWP among all active BWPs configured with PRACH occasion. For example, the BWP collection includes: BWP1, BWP2, BWP3 and BWP4, and BWP configured with PRACH occasting has BWP2 and BWP3, where BWP2 is activated BWP and BWP3 is deactivated BWP, and then the terminal can only select BWP2 as the target BWP. It is to be noted that, when there are a plurality of BWPs satisfying the condition, the terminal may randomly select one of the BWPs satisfying the condition as the target BWP.

Manner 1-3, in at least a portion of BWPs having measurement configurations or measurement results in the first BWP subset, one BWP is randomly selected to be determined as the target BWP. Where at least part is said herein also to include part or all, ways 1-3 include, but are not limited to, by at least part of the difference:

manner 1-3-1, among all BWPs having measurement configuration or measurement result in the first BWP subset, one BWP is randomly selected to be determined as the target BWP. That is, the terminal randomly selects one BWP as a target BWP among all configured (including activated and inactivated) BWPs configured with/with the measurement result and configured with PRACH occasting. For example, the BWP collection includes: BWP1, BWP2, BWP3 and BWP4, BWP2, BWP3 and BWP4 are BWP for BWP occasting, BWP1, BWP2 and BWP4 are for measurement objects for network device configuration, and BWP2 and BWP4 are for BWP meeting the condition, so that the terminal can randomly select one target BWP from BWP2 and BWP4 regardless of whether the BWP2 and BWP4 are activated.

Manner 1-3-2, among activated BWPs having measurement configuration or measurement result in the first BWP subset, randomly selects one BWP to determine as the target BWP. That is, the terminal randomly selects one BWP as a target BWP among all active BWPs configured with/with the measurement result and configured with PRACH occasting. For example, a BWP collection includes: BWP1, BWP2, BWP3 and BWP4, BWP2, BWP3 and BWP4 are the BWPs configured with PRACH occasting, and BWP1, BWP2 and BWP4 are the measurement objects configured with measurement configuration of the network device, where BWP2 is activated BWP and BWP4 is not activated BWP, and the terminal can only select BWP2 as the target BWP. It is to be noted that, when there are a plurality of BWPs satisfying the condition, the terminal may randomly select one of the BWPs satisfying the condition as the target BWP.

Mode 2, in a second BWP subset with measurement configuration or measurement result in the BWP set, randomly selecting one BWP to determine as the target BWP. That is, the terminal randomly selects one BWP as a target BWP among all BWPs configured with/having measurement results (including active and inactive). For example, a BWP collection includes: BWP1, BWP2, BWP3 and BWP4, and BWP1, BWP2 and BWP4 are measurement objects of the measurement configuration of the network device configuration, the terminal may randomly select one as a target BWP from BWP1, BWP2 and BWP4, regardless of whether BWP1, BWP2 and BWP4 are activated.

Mode 3 is to randomly select one BWP among all BWPs in the BWP set to determine the target BWP. That is, the terminal randomly selects one BWP as a target BWP among all configured (including activated and inactivated) BWPs. For example, a BWP collection includes: BWP1, BWP2, BWP3, and BWP4, the terminal may randomly select one of BWP1, BWP2, BWP3, and BWP4 as the target BWP, regardless of whether BWP1, BWP2, BWP3, and BWP4 are activated.

In a second mode, in at least part of BWPs in a first BWP subset in which the PRACH transmission opportunities are configured in the BWP set, selecting one BWP corresponding to the earliest PRACH transmission opportunity to determine as the target BWP.

The method comprises the following steps: the terminal may select, from at least a portion of BWPs in a first BWP subset configured with PRACH occase in an available BWP set configured for the terminal by the network device, a BWP with the earliest PRACH occase as a target BWP. At least part of what is said herein is part or all. For example, the BWP set configured by the network device for the terminal includes: BWP1, BWP2, BWP3 and BWP4, and BWP2, BWP3 and BWP4 are disposed in the PRACH occasting, and then BWP2, BWP3 and BWP4 are included in the first BWP subset. The second way may include but is not limited to:

in the method 1, one BWP corresponding to the earliest PRACH transmission opportunity is selected from all BWPs in the first BWP subset and determined as the target BWP. That is, the terminal selects the BWP with the earliest PRACH occase as the target BWP, among all configured (including activated and inactivated) BWPs configured with PRACH occase. For example, a BWP collection includes: BWP1, BWP2, BWP3 and BWP4, and BWP which is configured with PRACH occase includes BWP2, BWP3 and BWP4, then, no matter whether BWP2, BWP3 and BWP4 are activated, if the PRACH occase corresponding to BWP3 in BWP2, BWP3 and BWP4 is earlier than the PRACH occase corresponding to other two BWPs, the terminal selects BWP3 as the target BWP.

In the method 2, in the activated BWPs of the first BWP subset, one BWP corresponding to the earliest PRACH transmission opportunity is selected and determined as the target BWP. That is, the terminal selects, as the target BWP, the BWP with the earliest PRACH occase from all active BWPs configured with PRACH occase. For example, a BWP collection includes: BWP1, BWP2, BWP3 and BWP4, and BWP configured with PRACH occase includes BWP2, BWP3 and BWP4, if BWP2 and BWP3 are activated and BWP4 is not activated, the terminal selects BWP3 as the target BWP if the PRACH occase corresponding to BWP3 is earlier than the PRACH occase corresponding to BWP 2.

In the method 3, in at least a part of BWPs having measurement configuration or measurement results in the first BWP subset, one BWP corresponding to the earliest PRACH transmission opportunity is selected to be determined as the target BWP. The BWP set configured by the network device for the terminal includes: BWP1, BWP2, BWP3 and BWP4, BWP2, BWP3 and BWP4 of the BWP configured with PRACH occasting, and BWP1, BWP2 and BWP4 of the measurement object configured with the network device, then the terminal selects a BWP corresponding to the earliest PRACH transmission opportunity to determine as the target BWP in at least part of BWP2 and BWP 4. At least part of this includes part or all, and the mode 3 includes:

in the method 3-1, one BWP corresponding to the earliest PRACH transmission opportunity is selected from all BWPs having measurement configuration or measurement results in the first BWP subset and determined as the target BWP. That is, the terminal selects, as the target BWP, the BWP with the earliest PRACH occase among all the BWPs configured with/with the measurement result and configured with the PRACH occase (including activated and inactivated). For example, a BWP collection includes: BWP1, BWP2, BWP3 and BWP4, BWP2, BWP3 and BWP4 are BWP configured for PRACH occase, BWP1, BWP2 and BWP4 are measurement objects configured for network device configuration, and BWP2 and BWP4 are BWP satisfied for BWP, and then BWP4 is selected as the target BWP if BWP2 and BWP4 are activated or not, if the PRACH occase corresponding to BWP4 is earlier than the PRACH case corresponding to BWP 2.

In the method 3-2, in the activated BWPs having the measurement configuration or measurement result in the first BWP subset, one BWP corresponding to the earliest PRACH transmission opportunity is selected to be determined as the target BWP. That is, the terminal selects, as the target BWP, the BWP with the earliest PRACH occase among all active BWPs configured with/with the measurement result and configured with PRACH occase. For example, a BWP collection includes: BWP1, BWP2, BWP3, and BWP4, BWP1, BWP2, BWP3, and BWP4 are examples of BWP configured for PRACH occase, BWP1, BWP2, and BWP4 are examples of measurement objects configured for network device configured for measurement, where BWP1 is not activated, and BWP2 and BWP4 are activated, and if the PRACH occase corresponding to BWP4 is earlier than the PRACH occase corresponding to BWP2, the terminal selects BWP4 as the target BWP.

While various implementations of step 21 are described above, the following embodiment further describes a specific implementation of step 22, where step 22 may include, but is not limited to:

the method comprises the steps of firstly, detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP;

if yes, randomly selecting one from the first SSB set as a target SSB, or selecting one with the highest quality from the first SSB set as the target SSB;

if not, one of the second SSB sets is randomly selected as a target SSB, or the other of the second SSB sets with the highest quality is selected as the target SSB. Wherein the second set of SSBs is a set of SSBs detected by the terminal on the target BWP, or the second set of SSBs is a set of SSBs detected by the terminal on the BWP set.

The implementation mode of the scheme comprises the following steps:

1. detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; and if the SSB exists, randomly selecting one from the first SSB set as a target SSB, and if the SSB does not exist, randomly selecting one from a second SSB set as the target SSB, wherein the second SSB set is a set of SSBs detected by the terminal on a target BWP, or the second SSB set is a set of SSBs detected by the terminal on a BWP set.

2. Detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if the SSBs exist, one of the first SSBs is randomly selected as a target SSB, and if the SSBs do not exist, the highest quality SSB is selected as a target SSB in a second SSB set, where the second SSB set is a set of SSBs detected by the terminal on a target BWP, or the second SSB set is a set of SSBs detected by the terminal on a BWP set.

3. Detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if yes, selecting one with the highest quality in the first SSB set as a target SSB; if not, randomly selecting one of the second SSBs as a target SSB, where the second SSB set is a set of SSBs detected by the terminal on a target BWP, or the second SSB set is a set of SSBs detected by the terminal on a BWP set.

4. Detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if yes, selecting one with the highest quality in the first SSB set as a target SSB; if not, selecting one with the highest quality as the target SSB from a second SSB set, wherein the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

Alternatively, step 22 comprises:

detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP;

if the active BWP is not available, determining other active BWPs except the target BWP as a new target BWP, and returning to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWPs are available, or determining the target SSB;

and if no other available active BWPs exist and the target SSB is not determined, randomly selecting one of the second SSB sets as the target SSB, or selecting the highest quality one of the second SSB sets as the target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

The implementation mode of the scheme comprises the following steps:

1. detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if the SSBs exist, randomly selecting one from the first SSB set as a target SSB, if the SSBs do not exist, determining other active BWPs except the target BWP as a new target BWP, and returning to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWP is available or the target SSB is determined, and if no other active BWP is available and the target SSB is not determined, randomly selecting one from a second SSB set as the target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

2. Detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if the SSBs exist, randomly selecting one of the first SSB sets as a target SSB, if the SSBs do not exist, determining other active BWPs except the target BWP as a new target BWP, and returning to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWP is available or the target SSB is determined, and if the target SSB is not determined and no other active BWP is available, selecting one with the highest quality as the target SSB in a second SSB set, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

3. Detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if the SSBs exist, selecting one of the first SSB sets with the highest quality as a target SSB, if the SSBs do not exist, determining other active BWPs except the target BWP as a new target BWP, and returning to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWP is available or the target SSB is determined, and if no other active BWP is available and the target SSB is not determined, randomly selecting one of the second SSB sets as the target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

4. Detecting whether a first SSB set with signal quality higher than a preset threshold exists on a target BWP; if the SSBs exist, selecting the highest quality one of the first SSB sets as a target SSB, if the SSBs do not exist, determining other active BWPs except the target BWP as a new target BWP, and returning to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWP is available or the target SSB is determined, and if the target SSB is not determined and no other active BWP is available, selecting the highest quality one of the second SSB sets as the target SSB, where the second SSB set is the set of SSBs detected by the terminal on the target BWP, or the second SSB set is the set of SSBs detected by the terminal on the BWP set.

It is worth pointing out that the signal quality can be obtained by: reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Reference Signal Strength Indicator (RSSI) parameters. Taking RSRP as an example, the above scheme for determining the target SSB includes: randomly selecting one SSB among the SSBs if SS-RSRP of at least one SSB existing on the target BWP is higher than a preset threshold (RSRP-threshold SSB); otherwise, selecting any SSB as the target SSB, or selecting any other active BWP, and looping the previous process (detecting whether there is any SSB with signal quality exceeding the preset threshold in the other active BWP) until there is no optional SSB. Or, if the SS-RSRP of at least one SSB existing on the target BWP is higher than a preset threshold (RSRP-threshold SSB), selecting the SSB with the highest SS-RSRP among the SSBs, otherwise selecting any SSB as the target SSB, or selecting any other active BWP, and looping the previous step process (detecting whether there is an SSB with signal quality exceeding the preset threshold in the other active BWPs) until there is no optional SSB.

It is worth noting that any implementation of step 22 described above can be combined with any implementation of step 22, such as step 21 using approach 1-3-1, step 22 using approach 1 in scenario one, and so on.

While different implementations of step 21 and step 22 are described above, the following embodiment further describes a specific implementation of step 23, where step 23 may include, but is not limited to:

detecting whether a candidate PRACH transmission opportunity associated with a target SSB exists;

if yes, randomly selecting one of the candidate PRACH transmission opportunities to be determined as a target PRACH transmission opportunity, or selecting the earliest one of the candidate PRACH transmission opportunities to be determined as the target PRACH transmission opportunity;

if not, randomly selecting one of the available PRACH transmission opportunities configured for the terminal to be determined as the target PRACH transmission opportunity, or selecting the earliest one of the available PRACH transmission opportunities to be determined as the target PRACH transmission opportunity.

The candidate PRACH transmission occasions or the available PRACH transmission occasions are not overlapped with a measurement interval (gap) of the terminal in a time domain, that is, the PRACH oclocations are selected in consideration of an influence of the measurement gap, that is, if the configured PRACH oclocations conflict with the measurement gap, the configured PRACH oclocations are considered to be unavailable. The specific implementation of the method may be that the terminal automatically excludes the unavailable PRACH occasion when determining the PRACH occasion according to the above scheme, or the terminal excludes the unavailable PRACH occasion first when determining the candidate PRACH occasion or the available PRACH occasion. In this way, it can be ensured that all PRACH occases determined by the above scheme are available.

The implementation mode of the scheme comprises the following steps:

1. detecting whether a candidate PRACH transmission opportunity associated with a target SSB exists; if the candidate PRACH transmission opportunities exist, one of the candidate PRACH transmission opportunities is randomly selected and determined as a target PRACH transmission opportunity, and if the candidate PRACH transmission opportunities do not exist, one of the available PRACH transmission opportunities configured for the terminal is randomly selected and determined as the target PRACH transmission opportunity. That is, if the target SSB and the PRACH occasions have configured or determined an association relationship, the terminal randomly selects one PRACH occasions as a target PRACH occasion from the PRACH occasions corresponding to the target SSB; otherwise, the terminal randomly selects one PRACH oclocations from the available PRACH oclocations as the target PRACH oclocation.

2. Detecting whether a candidate PRACH transmission opportunity associated with a target SSB exists; if the candidate PRACH transmission opportunities exist, one of the candidate PRACH transmission opportunities is randomly selected and determined as a target PRACH transmission opportunity, and if the candidate PRACH transmission opportunities do not exist, the earliest one of the available PRACH transmission opportunities is selected and determined as the target PRACH transmission opportunity. That is, if the target SSB and the PRACH occasions have configured or determined an association relationship, the terminal randomly selects one PRACH occasions as a target PRACH occasion from the PRACH occasions corresponding to the target SSB; otherwise, the terminal selects the earliest one of the available PRACH occase as the target PRACH occase.

3. Detecting whether a candidate PRACH transmission opportunity associated with a target SSB exists; if the candidate PRACH transmission opportunities exist, the earliest one is selected from the candidate PRACH transmission opportunities to be determined as the target PRACH transmission opportunity, and if the candidate PRACH transmission opportunities do not exist, one is randomly selected from the available PRACH transmission opportunities configured for the terminal to be determined as the target PRACH transmission opportunity. That is, if the target SSB and the PRACH occases have configured or determined an association relationship, the terminal selects an earliest PRACH occases from the PRACH occases corresponding to the target SSB as a target PRACH occase; otherwise, the terminal randomly selects one PRACH oclocations from the available PRACH oclocations as the target PRACH oclocation.

4. Detecting whether a candidate PRACH transmission opportunity associated with a target SSB exists; if the candidate PRACH transmission opportunities exist, the earliest one is selected from the candidate PRACH transmission opportunities to be determined as the target PRACH transmission opportunity, and if the candidate PRACH transmission opportunities do not exist, the earliest one is selected from the available PRACH transmission opportunities to be determined as the target PRACH transmission opportunity. That is, if the target SSB and the PRACH occasions have configured or determined an association relationship, the terminal selects an earliest one of the PRACH occasions corresponding to the target SSB as a target PRACH occasion; otherwise, the terminal selects the earliest one of the available PRACH occase as the target PRACH occase.

It is noted that various implementations of

steps

21, 22 and 23 may be combined arbitrarily, that is, any implementation of step 23, any implementation of step 22 may be combined with any implementation of step 21. For example, step 21 is in mode 1-3-1, step 22 is in mode 1 of scheme one, step 23 is in mode 2 of scheme, and so on. Furthermore, it is worth pointing out that step 21, step 22, and step 23 may also be implemented by other implementations besides the embodiment of the present invention, step 21 may also be combined with other implementations of step 22 and step 23, step 22 may also be combined with other implementations of step 21 and step 23, and step 23 may also be combined with other implementations of step 21 and step 22, which is not listed in this embodiment.

In the method for determining random access resources according to the embodiment of the present invention, the terminal may quickly determine the BWP and the random access resources in the random access process in a multi-active BWP scenario, so as to ensure that the random access process is normally performed when the terminal has multiple active BWPs.

The foregoing embodiments describe the method for determining random access resources in different scenarios, and the following describes a terminal corresponding to the method with reference to the accompanying drawings.

As shown in fig. 3, the terminal 300 according to the embodiment of the present invention can select one BWP from the set of bandwidth portions BWP configured for the terminal to determine as a target BWP; determining a target synchronization signal block SSB according to the target BWP; according to the target SSB, details of a target physical random access channel PRACH transmission opportunity method are determined, and the same effect is achieved, the terminal 300 specifically includes the following functional modules:

a first processing module 310, configured to select one BWP from the bandwidth part BWP set configured for the terminal to determine as a target BWP;

a second processing module 320, configured to determine a target synchronization signal block SSB according to the target BWP;

the third processing module 330 is configured to determine a PRACH transmission opportunity of a target physical random access channel according to a target SSB.

Wherein, the first processing module 310 includes:

a first processing sub-module, configured to randomly select one BWP from at least some BWPs in the BWP collection as a target BWP;

alternatively, the first and second electrodes may be,

and the second processing submodule is used for selecting one BWP corresponding to the earliest PRACH transmission opportunity from at least part of BWPs of a first BWP subset configuring the PRACH transmission opportunity in the BWP set to determine the BWP as the target BWP.

Wherein, the first processing submodule includes:

a first processing unit, configured to randomly select one BWP from at least part of BWPs in a first BWP subset in which a PRACH transmission opportunity is configured in a BWP set, and determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

a second processing unit, configured to randomly select one BWP from a second BWP subset having a measurement configuration or measurement result in the BWP set, and determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

a third processing unit, configured to randomly select one BWP from all BWPs in the BWP collection as the target BWP.

Wherein the first processing unit comprises:

a first processing subunit, configured to randomly select one BWP from all BWPs in a first BWP subset in which a PRACH transmission opportunity is configured in a BWP set, and determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

a second processing subunit, configured to randomly select one BWP from the activated BWPs in the first BWP subset to determine as a target BWP;

alternatively, the first and second electrodes may be,

a third processing subunit, configured to randomly select one BWP from at least some BWPs in the first BWP subset having measurement configuration or measurement result as the target BWP.

Wherein the third processing subunit is specifically configured to:

randomly selecting one BWP from all BWPs with measurement configuration or measurement results in the first BWP subset to be determined as a target BWP;

alternatively, the first and second electrodes may be,

in activated BWPs with measurement configuration or measurement results in the first BWP subset, one BWP is randomly selected to be determined as the target BWP.

Wherein, the second processing submodule includes:

a fourth processing unit, configured to select, from all BWPs in the first BWP subset, a BWP corresponding to the earliest PRACH transmission opportunity to determine as a target BWP;

alternatively, the first and second electrodes may be,

a fifth processing unit, configured to select, from the activated BWPs in the first BWP subset, one BWP corresponding to the earliest PRACH transmission opportunity to determine as a target BWP;

alternatively, the first and second electrodes may be,

a sixth processing unit, configured to select, as the target BWP, one BWP corresponding to the earliest PRACH transmission opportunity from at least some BWPs having measurement configurations or measurement results in the first BWP subset.

Wherein the sixth processing unit includes:

a fourth processing subunit, configured to select, from all BWPs with measurement configurations or measurement results in the first BWP subset, a BWP corresponding to the earliest PRACH transmission opportunity to determine as a target BWP;

alternatively, the first and second electrodes may be,

a fifth processing subunit, configured to select, from the activated BWPs with the measurement configuration or the measurement result in the first BWP subset, one BWP corresponding to the earliest PRACH transmission opportunity to determine as the target BWP.

Wherein the second processing module 320 includes:

the first detection submodule is used for detecting whether a first SSB set with the signal quality higher than a preset threshold exists on a target BWP;

a third processing sub-module, configured to randomly select one of the first SSB sets as a target SSB if the first SSB set exists, or select one of the first SSB sets with the highest quality as the target SSB;

and if the SSBs do not exist, randomly selecting one of the second SSBs set as the target SSB, or selecting the highest quality one of the second SSBs set as the target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

Wherein, the second processing module 320 further includes:

the second detection submodule is used for detecting whether a first SSB set with the signal quality higher than a preset threshold exists on the target BWP or not;

a fifth processing sub-module, configured to randomly select one of the first SSB sets as a target SSB if the first SSB set exists, or select one of the first SSB sets with a highest quality as the target SSB;

a sixth processing sub-module, configured to determine, if the active BWP is not available, other active BWPs except the target BWP as a new target BWP, and return to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWP is available, or determine the target SSB;

and a seventh processing sub-module, configured to, if there are no other available active BWPs and the target SSB is not determined, randomly select one of the second SSBs set as the target SSB, or select the highest quality one of the second SSBs set as the target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

Wherein, the third processing module 330 includes:

a third detection sub-module, configured to detect whether there is a candidate PRACH transmission opportunity associated with the target SSB;

an eighth processing sub-module, configured to randomly select one of the candidate PRACH transmission occasions to determine as a target PRACH transmission occasion if the candidate PRACH transmission occasions exist, or select an earliest one of the candidate PRACH transmission occasions to determine as the target PRACH transmission occasion;

and a ninth processing sub-module, configured to randomly select one of available PRACH transmission occasions configured for the terminal to determine as the target PRACH transmission occasion, or select an earliest one of the available PRACH transmission occasions to determine as the target PRACH transmission occasion, if the PRACH transmission occasion does not exist.

It is worth pointing out that, the terminal according to the embodiment of the present invention may quickly determine the BWP and the random access resource in the random access procedure in the multi-active BWP scenario, and ensure that the random access procedure is normally performed when there are multiple active BWPs in the terminal.

It should be noted that the division of each module of the above terminal is only a division of a logical function, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

To better achieve the above object, further, fig. 4 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 40 includes, but is not limited to: radio frequency unit 41, network module 42, audio output unit 43, input unit 44, sensor 45, display unit 46, user input unit 47, interface unit 48, memory 49, processor 410, and power supply 411. Those skilled in the art will appreciate that the terminal configuration shown in fig. 4 is not intended to be limiting, and that the terminal may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

Wherein, the radio frequency unit 41 is configured to receive and transmit data under the control of the processor 410;

a processor 410, configured to select one BWP from the bandwidth part BWP set configured for the terminal to determine as a target BWP; determining a target synchronization signal block SSB according to the target BWP; determining a target Physical Random Access Channel (PRACH) transmission opportunity according to a target SSB;

the terminal of the embodiment of the invention can quickly determine the BWP and the random access resource of the random access process under the scene of multi-activation BWP, and ensure that the random access process is normally carried out when the terminal has a plurality of activation BWPs.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 41 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 410; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 41 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 41 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 42, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 43 may convert audio data received by the radio frequency unit 41 or the network module 42 or stored in the memory 49 into an audio signal and output as sound. Also, the audio output unit 43 may also provide audio output related to a specific function performed by the terminal 40 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 43 includes a speaker, a buzzer, a receiver, and the like.

The input unit 44 is for receiving an audio or video signal. The input Unit 44 may include a Graphics Processing Unit (GPU) 441 and a microphone 442, and the Graphics processor 441 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 46. The image frames processed by the graphic processor 441 may be stored in the memory 49 (or other storage medium) or transmitted via the radio frequency unit 41 or the network module 42. The microphone 442 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 41 in case of the phone call mode.

The terminal 40 also includes at least one sensor 45, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 461 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 461 and/or a backlight when the terminal 40 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 45 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 46 is used to display information input by the user or information provided to the user. The Display unit 46 may include a Display panel 461, and the Display panel 461 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 47 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 47 includes a touch panel 471 and other input devices 472. The touch panel 471, also referred to as a touch screen, may collect touch operations by a user (e.g., operations by a user on or near the touch panel 471 using a finger, a stylus, or any other suitable object or accessory). The touch panel 471 can include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 410, receives a command from the processor 410, and executes the command. In addition, the touch panel 471 can be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 47 may include other input devices 472 in addition to the touch panel 471. Specifically, the other input devices 472 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 471 can be overlaid on the display panel 461, and when the touch panel 471 detects a touch operation on or near the touch panel 471, the touch panel transmits the touch operation to the processor 410 to determine the type of the touch event, and then the processor 410 provides a corresponding visual output on the display panel 461 according to the type of the touch event. Although the touch panel 471 and the display panel 461 are shown as two separate components in fig. 4, in some embodiments, the touch panel 471 and the display panel 461 may be integrated to implement the input and output functions of the terminal, and are not limited herein.

The interface unit 48 is an interface for connecting an external device to the terminal 40. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 48 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 40 or may be used to transmit data between the terminal 40 and external devices.

The memory 49 may be used to store software programs as well as various data. The memory 49 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 49 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 410 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 49 and calling data stored in the memory 49, thereby performing overall monitoring of the terminal. Processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 410.

The terminal 40 may further include a power supply 411 (e.g., a battery) for supplying power to various components, and preferably, the power supply 411 may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the terminal 40 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 410, a memory 49, and a computer program stored in the memory 49 and capable of running on the processor 410, where the computer program, when executed by the processor 410, implements each process of the foregoing method for determining random access resources, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal 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), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing method for determining random access resources, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

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 implementation. 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 invention.

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

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention 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 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. Based on such understanding, the technical solution of the present invention may be embodied in the form of 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, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A method for determining random access resources, comprising:

determining a target Physical Random Access Channel (PRACH) transmission opportunity according to the target SSB;

the method for selecting a BWP from a bandwidth part BWP set configured for a terminal to determine as a target BWP comprises the following steps:

randomly selecting one BWP from at least part BWPs of the BWP set to be determined as a target BWP;

alternatively, the first and second electrodes may be,

and selecting one BWP corresponding to the earliest PRACH transmission opportunity as a target BWP in at least a part of a first BWP subset configuring the PRACH transmission opportunity in the BWP set.

2. The method of claim 1, wherein the step of randomly selecting one BWP among at least some BWPs in the BWP set as the target BWP comprises:

randomly selecting one BWP from at least part of BWPs in a first BWP subset with PRACH transmission opportunities configured in the BWP set to determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

randomly selecting one BWP from a second BWP subset with measurement configuration or measurement result in the BWP set to be determined as a target BWP;

alternatively, the first and second electrodes may be,

randomly selecting one BWP from all BWPs of the BWP set to be determined as a target BWP.

3. The method according to claim 2, wherein the step of randomly selecting one BWP from at least a part of BWPs in a first BWP subset of the BWP set configured with PRACH transmission opportunities as the target BWP comprises:

randomly selecting one BWP from all BWPs of a first BWP subset with PRACH transmission opportunity configured in the BWP set to determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

randomly selecting one BWP from the activated BWPs in the first BWP subset to be determined as a target BWP;

alternatively, the first and second electrodes may be,

randomly selecting one BWP to be determined as a target BWP from at least a portion of BWPs having measurement configuration or measurement results in the first BWP subset.

4. The method according to claim 3, wherein the step of randomly selecting one BWP to be determined as the target BWP, among at least some BWPs having measurement configuration or measurement result in the first BWP subset, comprises:

alternatively, the first and second electrodes may be,

randomly selecting one BWP among the activated BWPs having the measurement configuration or measurement result in the first BWP subset as a target BWP.

5. The method according to claim 1, wherein the step of selecting, from at least some BWPs in a first BWP subset in which the PRACH transmission opportunity is configured in the BWP set, a BWP corresponding to an earliest PRACH transmission opportunity to be determined as a target BWP comprises:

selecting one BWP corresponding to the earliest PRACH transmission opportunity from all BWPs in the first BWP subset to determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

selecting one BWP corresponding to the earliest PRACH transmission opportunity from the activated BWPs of the first BWP subset to determine as a target BWP;

alternatively, the first and second electrodes may be,

and selecting one BWP corresponding to the earliest PRACH transmission opportunity as the target BWP from at least part of BWPs with measurement configuration or measurement results in the first BWP subset.

6. The method according to claim 5, wherein the step of selecting, from at least some BWPs having measurement configuration or measurement result in the first BWP subset, the BWP corresponding to the earliest PRACH transmission opportunity to be determined as the target BWP comprises:

selecting one BWP corresponding to the earliest PRACH transmission opportunity as a target BWP from all BWPs with measurement configuration or measurement results in the first BWP subset;

alternatively, the first and second electrodes may be,

and selecting one BWP corresponding to the earliest PRACH transmission opportunity as the target BWP from the activated BWPs with the measurement configuration or the measurement result in the first BWP subset.

7. The method of any of claims 1 to 6, wherein the step of determining a target synchronization signal block, SSB, according to the target BWP comprises:

detecting whether a first SSB set with signal quality higher than a preset threshold exists on the target BWP;

if yes, randomly selecting one from the first SSB set as a target SSB, or selecting the highest quality one from the first SSB set as the target SSB;

if not, randomly selecting one from a second SSB set as a target SSB, or selecting one with the highest quality from the second SSB set as a target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

8. The method of any of claims 1 to 6, wherein the step of determining a target synchronization signal block, SSB, according to the target BWP comprises:

if the target BWP does not exist, determining other active BWPs except the target BWP as a new target BWP, and returning to the step of detecting whether a first SSB set with signal quality higher than a preset threshold exists on the target BWP until no other active BWP exists or determining the target SSB;

if no other available active BWPs exist and the target SSB is not determined, randomly selecting one of the second SSB sets as the target SSB, or selecting the highest quality one of the second SSB sets as the target SSB, where the second SSB set is the set of SSBs detected by the terminal on the target BWP, or the second SSB set is the set of SSBs detected by the terminal on the BWP set.

9. The method according to any of claims 1 to 6, wherein the step of determining a transmission opportunity of a target physical random access channel, PRACH, according to the target SSB, comprises:

detecting whether there is a candidate PRACH transmission opportunity associated with the target SSB;

if not, randomly selecting one of the available PRACH transmission opportunities configured for the terminal to determine as the target PRACH transmission opportunity, or selecting the earliest one of the available PRACH transmission opportunities to determine as the target PRACH transmission opportunity.

10. A terminal, comprising:

a third processing module, configured to determine a PRACH transmission opportunity of a target physical random access channel according to the target SSB;

the first processing module comprises:

alternatively, the first and second electrodes may be,

and a second processing sub-module, configured to select, from at least part of BWPs in a first BWP subset in which the PRACH transmission opportunity is configured in the BWP set, a BWP corresponding to the earliest PRACH transmission opportunity to determine as the target BWP.

11. The terminal of claim 10, wherein the first processing sub-module comprises:

a first processing unit, configured to randomly select one BWP from at least part of BWPs in a first BWP subset in which a PRACH transmission opportunity is configured in the BWP set, and determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

a second processing unit, configured to randomly select one BWP from a second BWP subset with a measurement configuration or measurement result in the BWP set as a target BWP;

alternatively, the first and second electrodes may be,

12. The terminal of claim 11, wherein the first processing unit comprises:

a first processing subunit, configured to randomly select one BWP from all BWPs in a first BWP subset in which a PRACH transmission opportunity is configured in the BWP set, and determine the BWP as a target BWP;

alternatively, the first and second electrodes may be,

13. The terminal according to claim 12, wherein the third processing subunit is specifically configured to:

alternatively, the first and second electrodes may be,

14. The terminal of claim 10, wherein the second processing sub-module comprises:

a fourth processing unit, configured to select, from all BWPs in the first BWP subset, a BWP corresponding to an earliest PRACH transmission opportunity to determine as a target BWP;

alternatively, the first and second electrodes may be,

a fifth processing unit, configured to select, from activated BWPs in the first BWP subset, one BWP corresponding to an earliest PRACH transmission opportunity to determine as a target BWP;

alternatively, the first and second electrodes may be,

a sixth processing unit, configured to select, in at least some BWPs with measurement configurations or measurement results in the first BWP subset, a BWP corresponding to an earliest PRACH transmission opportunity to be determined as a target BWP.

15. The terminal of claim 14, wherein the sixth processing unit comprises:

a fourth processing subunit, configured to select, from all BWPs with measurement configurations or measurement results in the first BWP subset, a BWP corresponding to an earliest PRACH transmission opportunity to determine as a target BWP;

alternatively, the first and second electrodes may be,

a fifth processing subunit, configured to select, from the activated BWPs with the measurement configuration or the measurement result in the first BWP subset, a BWP corresponding to the earliest PRACH transmission opportunity to be determined as the target BWP.

16. The terminal according to any of claims 10 to 15, wherein the second processing module comprises:

a first detection sub-module, configured to detect whether a first SSB set with a signal quality higher than a preset threshold exists on the target BWP;

a third processing sub-module, configured to randomly select one of the first SSB sets as a target SSB if the first SSB set exists, or select one of the first SSB sets with a highest quality as a target SSB;

and if the SSBs do not exist, randomly selecting one of the second SSBs set as a target SSB, or selecting the highest-quality SSB of the second SSBs set as a target SSB, where the second SSB set is a set of SSBs detected by the terminal on the target BWP, or the second SSB set is a set of SSBs detected by the terminal on the BWP set.

17. The terminal according to any of claims 10 to 15, wherein the second processing module further comprises:

a second detection sub-module, configured to detect whether a first SSB set with a signal quality higher than a preset threshold exists on the target BWP;

a fifth processing sub-module, configured to randomly select one of the first SSB sets as a target SSB if the first SSB set exists, or select one of the first SSB sets with a highest quality as a target SSB;

a sixth processing sub-module, configured to determine, if the active BWP is not available, that other active BWPs except the target BWP are the new target BWP, and return to the step of detecting whether the first SSB set with the signal quality higher than the preset threshold exists on the target BWP until no other active BWP is available, or determine the target SSB;

a seventh processing sub-module, configured to, if there are no other available active BWPs and the target SSB is not determined, randomly select one of the second SSBs set as the target SSB, or select the highest quality one of the second SSBs set as the target SSB, where the second SSB set is the set of SSBs detected by the terminal on the target BWP, or the second SSB set is the set of SSBs detected by the terminal on the BWP set.

18. The terminal according to any of claims 10 to 15, wherein the third processing module comprises:

an eighth processing sub-module, configured to randomly select one of the candidate PRACH transmission opportunities as a target PRACH transmission opportunity if the candidate PRACH transmission opportunity exists, or select an earliest one of the candidate PRACH transmission opportunities as the target PRACH transmission opportunity;

and a ninth processing sub-module, configured to, if not, randomly select one of available PRACH transmission occasions configured for the terminal to determine as the target PRACH transmission occasion, or select an earliest one of the available PRACH transmission occasions to determine as the target PRACH transmission occasion.

19. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and being executable on the processor, the computer program, when executed by the processor, implementing the steps of the random access resource determination method according to any of claims 1 to 9.

20. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the random access resource determination method according to any one of claims 1 to 9.